WO2019110508A2 - Modular heating system for a habitable vehicle - Google Patents

Abstract

Disclosed is a heating system (10) for a habitable vehicle, the system comprising: - a first heating module (12) accommodated in a first module housing (36), said module housing (36) having an air inlet opening (56) and an air outlet opening (58); - a fan device (14) located separately from the first heating module (12) and accommodated in a second module housing (38), the fan device (14) and the first heating module (12) being air-flow connected by a connection assembly (16, 40, 42), and the fan device (14) being positioned relative to the first heating module (12) such that air conveyed by the fan (14) enters the first heating module (12) at the air inlet opening (56), flows through the first heating module (12) and exits the first heating module (12) again at the air outlet opening (58).

Description

 Modular heating system for a habitable vehicle

The invention relates to a heating system for a habitable vehicle.

The term habitable vehicle is understood to mean all types of driven or non-powered vehicles in which one person or several persons can or may also live. In such livable Fahr witnesses are in particular motorhomes, caravans or ships or boats.

Previous heating systems for livable vehicles are based on the principle that emerges from a usually central heating, heated air in the habitable space or distributed through a system of pipes or hoses to different Liche points in the habitable space. Usually in this heating a heating unit (operated electrically or with gas) and a fan un accommodated. In order to be able to ensure a corresponding heat output, larger and more powerful, and as a rule of their dimensions larger heaters are required for a larger habitable space accordingly.

The invention is based on the object bereitzu provide an optimized heating system, which allows flexible use in a small footprint.

This object is achieved by a heating system according to the independent to claim 1. Possible embodiments of the heating system are included in the dependent claims.

A heating system for a habitable vehicle is provided with:

 a first heating module, which is accommodated in a first module housing, wherein the first heating module has an air inlet opening and a Luftaustrittsöff opening,

 a separate from the first heating module fan device, which is accommodated in a second module housing,

wherein the blower device and the first heating module by means of a connecting arrangement Ver are connected to each other by air flow, and wherein the blower device is arranged relative to the first heating module is such that funded by the blower air at the air inlet opening into the first heating module, the first heating module flows through and leaves the first heating module again at the air outlet opening. The blower device may be an independent blower device or a part of a heating unit or an air conditioning unit.

In such a heating system, the individual components are available as modules bar and can be built depending on the available space at different locations.

The fan device may be located upstream of the first heater module.

In one embodiment, the heating system can additionally have a verbun with the ers th heating module and the fan device verbun which control device which is adapted to control the first heating module and the blower device.

By provided for such a modular heating system control device, the various modules or components of the heating system can be easily controlled or regulated, even if the modules or components should be located away from each other.

In the heating system, the first heating module may comprise a sensor device which is set up to detect the temperature of the air flowing through the first heating module. In this way, in particular, the temperature of the air emerging from the heating module can be detected so that it is not too hot when it leaves the habitable space. This makes it possible, in particular, to prevent the risk of heat damage to components of the vehicle or injuries to persons.

The first heating module may have a recorded in the first module housing Luftfüh tion element having a plurality of interconnected Führungsabschnit te, which are arranged one behind the other between the air inlet opening and the air outlet opening. The air guide element forms, so to speak, an inner housing of the module housing. In this case, the air guide element can be optimized with respect to the flow of air, in particular with regard to its shape or its cross section. The air guide element may be formed in particular special circular or elliptical in cross section. The module housing may independently have a different external design, in particular, the module housing may have substantially flat outer surfaces which are the same Construction along usually flat vehicle structures, such as walls, Verklei compounds, soil and the like simplified.

The air guide element may have at least two of the following parts or guide sections:

 a first guide portion which is verbun with the air inlet opening,

 a second guide portion which is verbun with the air outlet opening, and

 a third guide portion which is received and connected between the first and the two th guide portion.

The guide portions may be formed as tubular components. Each guide section can be a stable component in itself. The Führungsab sections can be connected together at their respective ends, where in the guide portions can be particularly designed so that the first guide portion and the second guide portion by means of a form-fitting connection, such as plug connection or latching connection, are coupled to the third th guide portion. Conceivable, however, are also other connec tion types such as a threaded connection, in the cut on a Führungsab a short external thread is provided and on the other guide section a corresponding internal thread. Further, the Führungsab sections may also be materially connected to each other, if necessary, such as by gluing.

The first heating module may be formed as a heater with a heating element, which is designed for heating air, which promotes the blower device. In the heating system, the first heating module may be an electric heater with a heating coil - as an example of the heating element - which is designed to heat air that promotes the blower device. In this case, the Heizwen del can be arranged in the third guide section. An electric Heizmo module can be installed in a very simple and space-saving as a rule, since single Lich a power connection must be provided. Furthermore, an electric heater as a heating module also easily integrated into an existing heating system who the. It is particularly advantageous that the heating module is passively flowed through by air, ie the heating module itself does not have a built-in fan. The first guide portion of the air guide element may have a plurality of deflection elements, such that air conveyed by the fan device is deflected in certain directions on entry into the first heating module and / or on exit from the first heating module on the deflection elements. The Umlen kelemente are used in particular to divide the conveyed air in the heating module so ver or flow, that optimal heat transfer in the field of heating coil can be done. Furthermore, the deflecting lead to a verbes serten mixing of the arriving at the heating module air and to a closing on even heating.

The heating system may include a second heating module, which is separate from the first heating module and which is upstream of the first heating module. This made it possible to use the first heating module as additional heating or as an alternative heating to the second heating module.

The second heating module and the fan device may be housed together in the second module housing. In this case, the second heating module and the fan device form a heating unit. The second heating module and the blower device can also form a kind of main heating in the heating system of the habitable vehicle, wherein the heating system can be supplemented by the first heating module as an additional or alternative heating.

The control device may be connected wirelessly or wired to the second heating module and configured to communicate with the second heating module. This makes it possible for the first heating module to be operated in coordination with the second heating module. The term control device is in this context also to be understood as comprising a plurality of, for example, the heating modules associated control units, such as control boards, said control units are in communication with each other. Furthermore, a control device may also include an external device, such as a mobile phone, a tablet computer or the like, on which a suitable application for controlling the heating system is stored and can be executed. The external device may be, for example, via a wireless radio link with the control device or a control unit.

In the heating system, the control device may be adapted to the Heizan location

with the first heating module alone and the blower device or with the second heating module alone and the blower device or with the first heating module and the second heating module together and the blower device

to operate in a heating mode. This allows flexible use of the heating system. In this case, the operation of one or both heating modules may depend, in particular, on the amount of heat required or whether the inhabited space should be heated within a short time. Furthermore, the heating modules can be controlled in a larger inhabited room, depending on their location in the inhabited room, so that, for example, a living area is heated more than a sleeping area.

The second heating module may be an electric heater or a gas heater or a diesel heater (or generally a fuel-fired heater). In particular special the combination of a first heating module, which is designed as an electric heater, and a second heating module, which is designed as a gas heater or Dieselhei tion lead to a high degree of flexibility during operation. Depending on the available energy source, the heating system can be operated with gas alone or with electricity alone or in combination. The use of the electric heater is particularly advantageous if the habitable vehicle is longer in the same place and an external power connection is available. The use of gas heating can be advantageous for short lifetimes, if there is no external power connection or if the user does not want to use an external power connection.

In the heating system, the first module housing can be fastened or fastened to the second module housing by means of an adapter device. This allows assembly of the first heating module and the second heating module in a compact manner. Further, by the adapter device also after a retrofit heating system allows, such as when the heating system initially only a second heating module (with integrated fan) and should be supplemented by a first Heizmo module.

In the heating system, the first heating module and the blower device may be arranged spatially separated from each other and be connected to each other by means of a pipe or a hose Luftströmungstechnisch. It is also conceivable in this connection that the first heating module and the second heating module (with integrated blower) are connected to one another via a pipe or hose connection. As a result, the design of the heating system with its modular components can be further flexibilized. The heating system may have at least one downstream of the first heating module arranged system module, which is connected Luftströmungstechnisch with the first heating module, wherein the system module is another pipe or a hose or an air flow divider or a further blower device. This allows a better distribution of the heated in the first heating module air to desired areas in the inhabited space.

As already described above, the first heating module of the heating system can have the features described below. If the Be handle "heating module" is used alone below, he is in connection with the description of the heating system as "first heating module" to understand. In that regard, the same parts are described with the terms "heating module" alone and "first heating module", whereas the term "second heating module" writes another component be.

The heating module for a heating system for a habitable vehicle can be provided with:

 a module housing with an air inlet opening and an air outlet opening,

 an air guide element accommodated in the module housing, which has a plurality of guide sections and which is connected to the air inlet opening and the air outlet opening, and

 at least one heating element, wherein the heating element is adapted to men, air, which flows from the air inlet opening to the air outlet opening to erwär men.

The heating module allows in one embodiment, the connection with other com ponents, so that the overall result is a heating system.

Such a heating module, which in particular does not have its own fan device, can be installed and used flexibly in a heating system. The space requirement of the heating module is very low.

The air inlet opening may be configured to be connectable to a separate from the heating module fan device.

In an alternative embodiment, the heating module is an independent heating. For this purpose, the heating module in one embodiment preferably before a fan device. The heating module may include a sensor device that is configured to detect the temperature of the air flowing through the heating module.

Furthermore, the heating module may have a control device that is equipped to actuate the heating module. In this case, the control device may have an interface which is adapted to provide a communication connection to a separate device from the heating module.

By the control device with its interface, the heating module can also be integrated into a heating system tax technology.

The sensor device may be arranged in relation to a flow cross-section of the heating module in a central region of an air guide element. As a result, in particular the region of a heated air flow is measured in the distributed over the flow cross section usually the highest Tempe rature prevails, so that the release of excessively heated air can be reliably concluded. This makes it possible, in particular, to reduce the risk of heat damage to components of the vehicle or injuries to persons.

A deviation of the position of the sensor device relative to a center of the flow cross section may be less than or equal to 20% of a diameter of the air guide element. Furthermore, the sensor device can be arranged along a - preferably centric - longitudinal axis of the air guide element. The substantially central arrangement with respect to the cross section or along the longitudinal axis serves the purpose that the heating module with unterschiedli Chen mounting positions (thus different rotational positions relative to Erdanzie hung) can be installed, the sensor device measures each reliable. If, for example, the sensor device were not centered, but arranged closer to a wall, the sensor device would possibly react later in time if the wall was further away from the earth's gravity field and the air would thus be "lower" below.

In one embodiment, the sensor device is located within a recirculation area of a displacer element. The displacer displaces so with the air radially outward and the sensor device is located in the area in which the displaced air flows back again. In a supplementary or alternative embodiment, the Sensorvor direction is in a cross section of the displacer or in a projection of the cross section, ie z. B. in the geometric extension of the cross section. In particular, the sensor device is located in an air flow direction behind the displacer element.

The displacer may be configured to direct air around the sensor device so that air deflected by the displacer reaches the sensor device. Furthermore, it can be provided that only the deflected air reaches the sensor device. As a result, a direct contact of the sensor device with the actual air flow is thus avoided.

The air guide element may have at least two of the following parts or guide sections:

 a first guide portion which is verbun with the air inlet opening,

 a second guide portion which is verbun with the air outlet opening, and

 a third guide portion which is received and connected between the first and the two th guide portion.

The air guide element forms, so to speak, an inner housing of the module housing. In this case, the air guide element can be optimized with respect to the flow of air, in particular with regard to its shape or its cross section. The air guide element may be formed in cross-section in particular circular or elliptical. The module housing can independently have a different external design, in particular, the module housing in wesentli Chen have flat outer surfaces, which simplifies the installation along usually flat vehicle structures, such as walls, panels, floor and the like.

The guide portions may be formed as tubular components. Each guide section can be a stable component in itself. The Führungsab sections can be connected together at their respective ends, where in the guide portions can be particularly designed so that the first guide portion and the second guide portion by means of a form-fitting connection, such as plug connection or latching connection, are coupled to the third th guide portion. Conceivable, however, are other connec- tion types such as a threaded connection, in which at a Führungsab- cut a short external thread is provided and on the other guide section a corresponding internal thread. Furthermore, the Führungsab section can also be materially connected to each other, if necessary, for example, by gluing.

The heating element of the heating module can be arranged in the flow direction behind the first guide section. In particular, the heating element may be accommodated in the third guide section. The heating module can thus be installed in a very simple and space-saving manner, since only one connection to an energy source, for example, power connection, must be provided. Furthermore, the heating module can also be easily integrated into an existing heating system. It is particularly advantageous that the heating module is passively traversed by air, i. The heating module itself does not have a built-in fan.

According to one embodiment, the air guide element is formed substantially symmetrically with respect to a center plane orthogonal to the flow direction, so that the heating module when installed in a heating system can be arbitrarily aligned. In this case, in particular, the first guide portion and the second guide portion may be substantially identical or identical forms out.

A flow channel of the air guide element may be formed with cross-section symmetry. This allows in particular an arbitrarily rotated installation of the heating module, in particular twisted in relation to pipe or Schlauchan statements or twisted in relation to a structural component of the vehicle, such as a wall or a floor.

In the heating module, the sensor device may be arranged in a sensor receptacle, which is held by a plurality of webs, wherein the webs are provided on the second guide portion or on the first guide portion and substantially erstre in the radial direction of the sensor receptacle. It is in particular described ben with the extent in the radial direction, that the struts from radially inward to radially outward relative to an example circular guide section. However, the term extension in the radial direction is not intended to define whether the strut follows the radius exactly in a straight line or whether the strut is possibly slightly inclined to the radius or curved or curved. Some or all webs may have an air duct, which is so out forms to pass air flowing through in the direction of the sensor device. As a result, air can be guided to the sensor from different areas of the heated air stream in particular. In the area of the sensor, the air is mixed from the different flow areas, so that, if necessary, temperature differences in the various flow areas are compensated somewhat. Accordingly, this can ensure that the sensor device measures or detects an averaged temperature of the heated air stream.

Some or all webs may consist of a temperature-conductive material. Preferably, the material used has a thermal conductivity greater than or equal to 15 W / (m * K). It is conceivable, for example, that the webs are formed as copper bars, which form a kind of star.

The sensor device can be arranged in the third guide section, wherein a web holds the sensor device.

Further, the sensor device as a backup - preferably as a fuse Schmelzsi - be formed, which responds to the exceeding of a temperature.

The sensor device may have at least two along a longitudinal axis of the air guide member axially spaced apart temperature fuses on.

In one embodiment, the heating element has several separate Heizkom components, z. B. separate heating coils. Each of the heating component is assigned a temperature fuse.

The heating module may have a displacement element which is adapted to displace air flowing through radially outward. In this case, the predatory gerelement can be connected to the sensor receptacle. Further, the displacement may be adapted to direct the main flow of heated air around the sensor device. By the displacement element ensures that the sensor device does not come directly or directly with the main stream of he warmed air in contact. Rather, the heated air is first passed around the displacer and the sensor device and subsequently ßend means of the above-mentioned air ducts in the webs to the sensor device passed. The diverted air flows essentially from radially outside to radially inward to the sensor device. The sensor device may also be arranged upstream with respect to the air ducts in the webs with respect to the main flow direction. As a result, the mixing of air whose temperature is detected, can be improved.

In one embodiment, the sensor device is located in the recirculation area behind a displacer element. The displacer thus displaces the air radially outward, and in the area where the air flows back again, the sensor device is located so that temperature measurement also takes place in that area.

The displacer element may also have a continuous recess for guiding air. In one embodiment, for example, the air in the recess opposite to the flow direction in the flow channel - that is, from the air inlet opening to the air outlet opening - and thus back leads ge as it were. The air in the recess thus flows from the direction of the air outlet opening in the direction of the air inlet opening. In one embodiment, there is a sensor device within the recess.

An outer side of the displacer element and the inside of the Luftführungsele management can limit an annular flow channel section. In this case, in particular by the dimensioning of the displacer influence on the design of the annular flow cross section taken who the. In this case, by a narrowing of the flow cross section and a kind of nozzle effect can be generated, so that the heated air in the direction of the air outlet opening is slightly accelerated.

The displacement element can be arranged in the flow direction between the heating coil and the air outlet opening. This means that the displacement element is effective only in a part of the flow cross section of the heating module. In particular, the special displacement element can be designed as a hemispherical or paraboloidal cover. Such a cover may be disposed upstream of the sensor device and protect the sensor device from direct air flow.

Alternatively, the displacer may be arranged in the flow direction between the air inlet opening and the air outlet opening and of Win tions of the heating coil - or in general of the active in terms of heating components of the heating element - be surrounded. In such an embodiment the displacement element extends substantially over the entire length of the air guide element, in particular it extends over the entire length of the third guide portion. In this case, the flow cross-section over almost the entire length of the heating module is annular.

The heating element can be designed as an electric heating element. In this case, the heating element may have at least one heating coil with several turns.

The heating module or the electric heating element can aufwei sen two heating coils, which are arranged one after the other in the flow direction. The two heating coils can preferably be controlled individually. Alternatively, both heating coils are controlled the same. The provision of two heating coils allows in particular a two-stage operation of the heating module. In this case, only one heating coil can be heated in a first stage. In a second stage who flows through both heating coils of electricity and heated.

As an alternative to a sequential arrangement of two heating coils, two heating coils can also be arranged so that one turn of the other heating coil follows repeatedly in the direction of flow on one turn of the one heating coil. In such an embodiment, therefore, the turns of the two heating coils alternate. In other words, it can also be said that the windings are superimposed in the flow direction or intertwined. Also in this embodiment, it is possible to enable the above-described zweistufi conditions operation.

In the heating module successive Windun conditions of the same heating coil can have a varying diameter in the flow direction. In particular, the diameter of one turn to the next (neigh th) turn can be larger or smaller. As a result, the heat transfer to the air flowing through can be influenced and optimized. In one embodiment, the diameter changes continuously in one direction.

The control device of the heating module can be accommodated in a module housing on the angeord Neten additional housing. In this case, the additional housing may be adapted to receive a board associated with the control device. The additional housing allows easy access to the control device, to possibly make their replacement or configuration easy Kings to Kings. Furthermore, the additional housing may be provided with sufficient ventilation slots in order to avoid overheating of the control device can. In order to support a compact design of the heating module, the additional housing may be formed so that it limits egg nen receiving space for the control device with an outer side of the module housing. In this case, the Steuervor device is thus accommodated in a space which is formed by an outer side of the module housing and the rest of the additional housing. The additional housing can be pushed onto the module housing or attachable.

The heating module may comprise at least one deflecting element, which is arranged on a guide portion which is connected to the outlet opening or the air outlet opening, wherein the deflecting element is configured as a ring through which the air flows. In this case, designed as a ring order steering element in the flow direction changing inner diameter have. For example, the ring may be conical, in particular conically widening in the flow direction.

The heating module may comprise a plurality of deflection elements which are arranged on a Füh tion section, which is connected to the outlet opening or the air outlet opening. In this case, the deflection elements may have a constant relative position to the guide portion. The deflecting the who thus in one embodiment does not move relative to the module housing, but are statically fixed. Furthermore, the deflection elements can be arranged along a circle, so that a deflection ring is formed. In particular, the deflecting elements serve to distribute or convey the conveyed air in the heating module in such a way that optimal heat transfer in the region of the heating coil can be achieved. Furthermore, the deflection lead to an improved Durchmi research of the arriving at the heating module air and then a more uniform heating.

The deflecting elements can be arranged along two circles, so that BEZ conditions on the radial direction, an inner Umlenkkranz and an outer deflection are formed wreath. In this case, the inner deflection ring aufwei sen, which differ from the deflection elements of the outer deflection ring with respect to the deflection direction of the air flow aufwei sen. As a result, in particular the influx of air into the heating module can be optimized.

The configured as a ring deflecting element can also act as a carrier of arranged in the circle deflecting elements. In the heating module, the sensor device can be arranged in an adapter device, which is reversibly connected to the air inlet opening or the Luftaustrittsöff tion of the module housing connectable.

The deflecting element or the plurality of deflecting elements may be arranged in an adapter device, which is reversibly connected to the air inlet opening of the Mo dulgehäuses. As a result, the deflection or the measurement can thus also be done by components that can be plugged by the adapter. Therefore, z. B. two heating units in a row and at the input and output each adapter would be attached.

Furthermore, the deflecting element or the plurality of deflecting elements can surround a section which permits a direct axial directional flow. A sol cher central portion would form a free recess with respect to the flow cross-section through which air can flow substantially unhindered.

Depending on the configuration, the adapter device can serve the connection of example with components or pipes to the heating module. In other design from the adapter device may also have components that take on an additional function. This is, for example, a homogenization of the air flow over at least one deflecting element and / or the determination of a temperature, wherein a mixture of different temperature fields is effected via at least one displacer element. These adapter devices with additional functionality allow, for example, the modular assembly of the heating module or a combination of several heating modules.

The provision of deflecting elements in the region of the air inlet opening or in the region of the first guide section of the air guide element also has the advantage that the heating module can be coupled with different upstream blower devices or other system components. In each case, the air conveyed to the heating module is deflected or deflected by the deflecting elements in such a way that an air flow which is improved for the heating module and the heating of the air can be generated in the air guiding element.

In one embodiment, at least one air guide component - vorzugswei se in the form of a pipe bend - for a homogenization of a flow of a guided in the air guide component air present. In this embodiment, for example, the function of the homogenization of the air flow, as it takes place in the first guide section, to the outside in the region of the Luftfüh- extended into it. The homogenization of the air flow - in particular over the flow cross section - again serves the purpose that the heating of the air takes place more effectively.

In one embodiment, the air guide component can have at least one pipe bend with arc sections. The arc sections limit webs in the pipe bend. Furthermore, the tracks serve the guidance of air. The pipe bend can be made stretched or include an angle.

The pipe bend as an exemplary embodiment of the air conduction component generally serves to generate a substantially uniform air flow, in which an air flow entering the pipe bend is, as it were, divided and guided through the individual webs.

Furthermore, in a further embodiment, the air guide component can be connected or connected to the air inlet opening or the air outlet opening.

The first heating module can be connectable in one embodiment both directly and via an adapter device with at least one separate entity - example, a blower device or a general system component or a pipe or hose or pipe bend - or at least two different separate entities, so that a Umlen effect of air in a guide portion of the first heating module and in the un indirectly or via the adapter device with the first heating module composites NEN entity takes place. As part of the heating system, the first heating module is accordingly connected to the separate entity. The first heating module or especially the housing of the first heating module can thus be designed such that the air inlet opening and / or the air outlet opening allows - depending on the application of the heating module - a direct or an indirect connection with a separate entity is made. In an extension, such an indirect or direct connection with two different entities (eg a device with a fan and a pipe) can take place. The respective opening thus allows a direct connection and a connection via an adapter device. The separate entity is, for example, a blower device or another possibly active system component (eg a heater or an air conditioning system). Alternatively, however, the separate entity may also serve primarily to guide air, insofar as it is a pipe or a hose. The connection should be this way and features The first heating module in this case over such a nature that the deflection of the air - especially for the purpose of homogenization of the air - takes place both in a guide section of the first heating module (in particular the first or second guide section) and in the connected Entität. In this embodiment, a separate component or a separate component for a function of the heating module is thus integrated and used, so that the function of the deflection or homogenization of the air is led out of the first Heizmo module.

The invention will be described below with reference to the attached figures with reference to an embodiment, in which:

Fig. 1 is a schematic diagram of a heating system;

2 shows an embodiment of a heating system with a first heating module and a second heating module.

Fig. 3 in part A) a connection of the first heating module and second heating module by means of an adapter device and in part B) by means of an air-carrying tube or hose;

4 shows the first heating module with a further tube or tube for distribu ment of heated air.

5 shows an exploded perspective view of a (first) heating module;

Fig. 6 is an exploded perspective view of an air guide member of the (first) heating module of Fig. 5;

Fig. 7 is a longitudinal sectional view of the (first) heating module of Figure 5 approximately accordingly a section line VII-VII of Figure 5;

8 is an exploded perspective view of a third Führungsab-section and of heating coils of the (first) heating module of FIG. 5.

Fig. 9 is a partially cutaway perspective view of an alternative Ausfüh approximately form of the (first) heating module; Fig. 10 is a perspective view of a second guide portion, wherein the flow-facing (inner) side is visible;

Fig. 1 1 in the sub-figures A) and B) perspective views of a Füh approximately section with a plurality of deflecting elements in a Umlenkkranz;

Fig. 12 in the sub-figures A) and B) perspective views of a Füh approximately section with several deflecting elements in two Umlenkkränzen;

Fig. 13 in the partial figures A) and B) perspective views of a Füh approximately section with an annular deflecting element;

Fig. 14 in the partial figures A) and B) perspective views of a Füh approximately section with displacement element;

Fig. 15 in the sub-figures A) and B) a longitudinal sectional view and a teilge-sectioned perspective view of the air guide element with verdrän gerelement;

Fig. 16 in the sub-figures A) to C) a connection between the heating module and pipe section by means of a pipe adapter.

FIG. 1 shows in simplified and schematic form a basic diagram of a heating system 10. The heating system has a first heating module 12, which is connected to a separate blower device 14. The air flow connection 16 between the first heating module 12 and the fan device 14 is illustrated here only by a line. Air to be heated is conveyed from the blower device 14 to the first heating module 12 by means of the line 16. The air is heated in the first heating module 12 and then exits from the first heating module 12 again. The heated air can exit directly from the first Heizmo module 12 in a habitable space, as is symbolized by the arrow 18 symbo. Alternatively, the first heating module 12 may be connected downstream with a wide Ren component 20 of the heating system 10, wherein the connection is symbolized here by another arrow 22.

The further component 20 can be, for example, a distributor, a further blower device or a tube or hose. It is also conceivable that not only another component 20 follows, but several components. In particular, it can be thought of as yet another component Building device 14 and another (first) heating module 12 provide so that the blower device 14 and the first heating module 12 is here again followed by a blower 14 and a first heating module 12, which are simplified here as another component 20 are shown.

The first heating module 12 and the blower device 14 have a communication tion compound 24, which is shown as a dotted line. A communication connection 26 may also be present between the first heating module 12 and the further component 20.

The blower device 14 may be part of a second heating module 28. It is especially thought that the second heating module 28 and the Gebläsevor device 14 form an integrated heater. Also between the first heating module 12 and the second heating module 28 may be 30 provided in this embodiment, a communication kationsverbindung. Settings of the heating system 10 can be, for example, on the first heating module 12 and / or on the second heating module 28 taken, in particular to corresponding control devices (not shown).

It is also conceivable that the first heating module 12 and / or the fan device 14 and / or the second heating module 28 and / or the further component (s) 20 have a wireless communication interface 32. By means of wireless communication interfaces 32, the various modules or compo nents of the heating system 10 with each other (control) exchange data. Furthermore, it is also conceivable to control the modules or components by means of a wireless remote control 34 of the heating system 10. The remote control 34 may be implemented in the form of an application on a mobile telephone or a tablet computer, for example. It goes without saying that the remote control 34 also has a communication interface 32. For example, a WLAN or a Bluetooth connection can serve as the wireless communication connection. With regard to the communication connection, it is also conceivable that, for example, the first heating module 12 or the second heating module 28 can be controlled by the wireless communication link NEN, and other modules or components of the heating system 10 by means of wired connections, such as the lines 24, 26, 30, to be controlled.

Figure 2 shows a schematic plan view of an embodiment of a heating system 10 with the first heating module 12 and the second heating module 28. The first heating module 12 has a first module housing 36. The second heating module 28 has a second module housing 38. In the illustrated example, the first heating module 12 and the second heating module 28 are connected directly to each other.

As can be seen in FIG. 3A, the first heating module 12 and the second heating module 28 can be connected to one another by means of an adapter device 40. FIG. 3A shows the non-connected state of the two heating modules 12, 28. FIG. 2 shows the connected state when the first heating module 12 has been inserted onto the adapter device 40 in accordance with the arrow direction in FIG. 3A. In an alternative embodiment, the first heating module 12 and the second heating module 28 have suitable mechanical interfaces (or general contact areas) for the discharge or supply of air, so that they can be connected directly to each other.

FIG. 3B shows the possibility that between the first heating module 12 and the second heating module 28 an air flow connection in the form of a pipe or a hose 42 is possible. For this purpose, the first heating module 12 has a pipe adapter 44 into which the pipe or hose 42 can be inserted and fastened.

It should be noted that the second heating module 28 shown in FIGS. 2 and 3 has a fan device not visible in these figures. By means of the blower device, air is conveyed from the second heating module 28 to the first heating module 12. It should also be noted that instead of the two-th heating module 28, only a blower device (without heating function) could be connected to the first heating module, as shown schematically in Fig. 1 Darge and has been explained above.

The second heating module 28 may be, for example, a heater that is powered by gas or diesel or electric. The first heating module 12 is preferably an electrically operated heater. The second heating module 28 shown here has an air inlet opening 46 in its second module housing 38. The air inlet opening 46 is covered by a protective grid 48. In the second heating module 28 sucked air is circulated inside the second heating module 28 (by means of the non-visible fan device) and heated (by means of a non-visible gas burner), and then exits at an air outlet opening 50 again. The second heating module 28 may also be operated only for circulating air, without the air is heated therein. For the sake of completeness, it is also pointed out that a gas connection 52 is provided on the second heating module 28. Furthermore, the second heating module 28 has an exhaust gas outlet 54 on which exhaust gases can escape after the combustion of gas or can be removed via an exhaust pipe, not shown here.

The first heating module 12 has an air inlet opening 56 and an air outlet opening 58 at its first module housing 36. The air inlet opening 56 is in the case of Fig. 2 or 3B by means of the adapter device 40 directly opposite the air outlet opening Ge 50 of the second heating module arranged when the two heating modules are connected together. In the example of Fig. 3B extends between the air outlet opening 50 of the second heating module 28 and the Luf teintrittsöffnung 56 of the first heating module 12 of the tube or the pipe 42. At the air inlet opening 56 of the tube adapter 44 is arranged. The first Heizmo module 12 has a protective grid 60 in the region of its air outlet opening 58.

The heating system 10 can be operated such that air conveyed by the blower device 14 (FIG. 1) is heated only by the first heating module 12. Age natively, the heating system 10 can be operated so that by the Gebläsevorrich device 14 funded air is heated only by the second heating module 28. Finally, it is also possible to operate the heating system 10 in such a way that air conveyed by the blower device 14 is warmed up both in the second heating module 28 and in the first heating module 12.

As can be seen in particular from FIGS. 2 and 3, the first heating module 12 can be used as additional or supplementary heating to the second heating module 28. Taking into account that the second heating module 28 in dargestell th example, a gas heater and the first heating module 12 is an electric heater, a heating operation of the heating system 10 can be done either with gas or electricity or combined. The operation of the first heating module 12 is particularly suitable when the habitable vehicle is connected to an external power connection. In a combined heating operation of the first heating module 12 and the second heating module 28, the control or regulation of the two heating modules can also be set up so that the respective consumption of gas or electricity is optimized. This can be done in particular taking parameters into account, such as the outside temperature, the current inside temperature, the internal temperature to be achieved or the like. It is also conceivable, for example, a kind of Schneilaufheizungsbetrieb in which both heating modules are operated abge true to each other, that a heating power of the heating system 10 is achieved, which warms up the habitable space within a minimum time to a desired ge indoor temperature. In Figure 4, the first heating module 12 with the known from Fig. 3B pipe or hose connection 42 is provided as part of a heating system 10. The Schlauchver connection 42 is contacted via the pipe adapter 44 with the air inlet opening 56 of the first heating module 12. In the area of the air outlet opening 58, a further tube adapter 44a is arranged instead of the protective grid 60. At this pipe adapter 44a, a further tubular or tubular connecting line 62 is connected. Downstream, the tube or the hose 62 has a distri lerelement 64 on which the air flow in different directions austre th or can be forwarded, if the distributor element 64 still another tubular or hose-like connecting element should connect. The connecting line 62 and / or the distributor element 64 may also be referred to as further components of the heating system, which are subsumed in the schematic FIG 1 as another component 20.

It can also be seen in FIGS. 2 to 4 that an additional housing 66 is provided on the module housing 36 of the first heating module 12. The additional housing 66 serves to receive electronic components, which are not visible in these figures, which are set up primarily for controlling the first heating module 12.

Hereinafter, with reference to Figures 5 to 10 in the Heizanla ge 10 usable first heating module 12 is described in detail. If, in the following, the term "heating module" is used alone, this always means the "first heating module" of the heating system in the context of this message. In that regard, the properties and features of the heating module 12 described below can also be understood as developments of the above-described first heating module 12 of the heating system 10.

FIG. 5 shows the heating module 12 in a perspective exploded view. The (first) module housing 36 has a lower half-shell 36a and an upper half-shell 36b. The two half-shells 36a, 36b are in particular positively connected to one another. For this purpose, the upper half-shell 36b has a spring 68 running around and the lower half-shell 36a has a groove 70. The two half-shells 36a, 36b are secured by means not shown screws in ver-connected state. In this regard, also appropriate Schrauböff openings 72 a and 72 b indicated, which are provided in the respective half-shells 36 a, 36 b. In Figure 5, the view is released to the air outlet opening 58 of the first Mo dulgehäuses 36. The module housing 36 has in the region of the air outlet opening 58 on a substantially circular flange 74. At this flange 74, the protective grid 60 shown in Figures 2 and 3 can be attached. Further, with the flange 74, a pipe adapter 44a shown in FIG. 4 can be connected. The air inlet opening 56 of the module housing 36 is partially visible in the region of the lower half-shell 36a. It can also be seen at the air outlet opening 58, an end face 124c of a later described in more detail surrounded Verdrängerelements, which deflects air to a sensor device.

In the (first) module housing 36, an air guide element 76 is received. The air guide element 76 forms a kind of inner housing, through which the air to be heated flows through it along a main flow direction SR. Upstream of the air flow element 76 is shown by way of example a pipe adapter 44 or 44a, which is in particular adapted to connect a pipe or hose 42 or 62 (FIG. 4) to the (first) heating module 12.

As already mentioned with reference to FIGS. 2 to 4, an additional housing 66 is arranged on the (first) module housing 36. The additional housing may also be gebil det by a lower half-shell 66 a and an upper half-shell 66 b. The two half-shells 66 a, 66 b of the additional housing 66 are just in case form-fitting connectable. For this purpose, the upper half-shell 66b has a spring 78 and a groove 80 is provided on the lower half-shell. The auxiliary housing 66 is adapted to receive boards 82, 84. The two boards 82, 84 form a control device 86 of the (first) heating module 12. Two sockets 88 can be seen on the board 84 by way of example. At these sockets 88, for example, cable connections 24, 26, 30 for commu nication with other components of the heating system 10 (see Figure 1) can be ruled out. Between the two boards 82, 84, an electrical cable 90 is shown schematically and simplified. This cable 90 is used in particular for the power supply of the (first) heating module 12 or one (or more) therein ordered Heizwendel as an embodiment of the heating element, which are not visible in the figure, because they are housed in the air guide element 76.

FIG. 6 shows, in a perspective exploded view similar to FIG. 5, the air guide element 76. The air guide element 76 is formed in this example by a first guide section 92, a second guide section 94 and a third guide section 96. The first guide portion 92 is in the assembled state of the (first) heating module 12 in Range or based on the flow direction SR just behind the air inlet opening 56 arranged. The second guide portion 94 is in the assembled state of the (first) heating module 12 in the region or in relation to the flow direction SR arranged just before the air outlet opening 58.

The first guide section 92 has a plurality of deflecting elements 98. The order directing elements 98 are arranged along a circle here and form a common Umlenkkranz 100. The deflecting elements 98 have a bent relative to a direction of flow SR parallel to the axial direction of the air guide element 76 or curved shape. You can also call the deflecting elements 98 as a kind of turbine blades. The deflecting elements 98 are firmly connected to the first guide section 92, in particular integrally formed as an integral component.

The second guide portion 94 has a plurality of webs 102, which extend with respect to a radial direction RR from radially outward to radially inward. The webs 102 are fixedly connected to the second guide portion 94, in particular integrally formed as an integral component. Attention should also be paid to the end face 124c of the displacement element 124 for the sensor device 130.

Between the first guide portion 92 and the second guide portion 94, the third guide portion 96 is received. The first Führungsab section 92 and the second guide portion 94 are on the third guide portion 96 attachable. The third guide section 96 has a substantially circular flow cross-section. However, the circular shape has two opposite flattened portions 104. Corresponding flattened portions 106, 108 are also visible on the first guide portion 92 and on the second guide portion 94, respectively. The flattened portions 104, 106, 108 serve in the assembled state of the air guide element 76 as a kind of securing the positive connection, so that the guide portions 92, 94, 96 can not rotate relative to each other.

The air guide element 76 is shown in Figure 7 in a longitudinal section ge shows, which corresponds approximately to a section line VII-VII of Figure 5. As can be seen, the first guide portion 92, the second guide portion 94 and the third guide portion 96 are in the assembled state. Air enters according to the main flow direction SR in Fig. 7 from the left in the first guide portion 92 and flows through the air guide member 76 until it exits at the two th guide portion 94 again. In the third guide portion 96, two heating coils 1 10, 1 12 are arranged. In the present example, the two heating coils 1 10, 1 12 arranged in the flow direction Rich SR or in the axial direction AR successively. The heating coils are fixed to a lower flattened portion 104 of the third guide portion 96. Each heating coil 1 10, 1 12 has two outside of the third guide portion 96 arranged electrical connections 1 14a, 1 14b and 1 16a, 1 16b. In the area of each heating coil 1 10, 1 12 a respective fuse 1 18 is arranged. The fuses 1 18 are used in particular to prevent overheating of the heating coils 1 10, 1 12.

From the sectional view of Figure 7 and the deflecting elements 98 ers th guide portion 92 can be seen. The Umlenkkranz 100 has a central opening 120 through which also air can flow. Air that flows in the region of the deflecting elements 98 is directed in particular radially outward, so that essentially the entire flow cross section formed by the third guide section 96 can be used. This is illustrated by the short arrows 122.

In the flow cross-section of the air guide element 76, a displacement is also arranged relement 124 with an end face 124 c. The displacement element 124 is configured to displace the air radially outward, and the end face 124c also allows the return of the air to the sensor device 130. It has a flow direction SR facing side or surface 126, which is curved or curved , In particular, the side of the flow SR facing 126 is spherical, in particular as a spherical cap or hemisphere, or designed as a paraboloid. In the present example, the displacement relement 124 serves as a cover for a receiving space 128 of a device 130 Sensorvorrich the receiving space 128 (sensor receptacle) is rich in a central region of the second guide portion 94 is provided. In one embodiment, the displacer 124 may be an integral part of the second Führungsab section 94.

The sensor device 130 is configured to detect the temperature of the heated air. The struts 102 of the second guide portion 94 (see also the following figure 10) have air ducts 132 which are adapted to conduct heated air from the main flow in the direction of the receiving space 128 and the sensor device 130 disposed therein. The sensor device 130 is thus not the main flow of the heated air exposed, but measures the temperature of a abge branched from the main flow or removed part of the air. In this way, in particular, it is also ensured that an average temperature is measured which corresponds as exactly as possible to the temperature which the air has when exiting from the (first) module housing 36 (FIGS. 2 to 5). The displacer 124, in particular its outer side 134, and the inner side 136 of the Luftführungsele element 76, in particular of the third guide portion 96, define a ring-shaped flow channel section 138th

8 shows a perspective exploded view similar to FIGS. 5 and 6 of the third guide section 96 and the heating elements 1 10 and 12 arranged therein. From the illustration it can be seen that the third guide section 96 is formed by two substantially semicircular partial profiles 96a , 96b can be formed. Both sub-profiles have respective flange portions 140a, 140b, at which the two sub-profiles 96a, 96b can be interconnected.

From the synopsis of Figures 7 and 8, the shape of the two heating coils 1 10, 1 12 can be seen. Each heating coil 1 10, 1 12, has two substantially rectilinear connection portions 142. At the con nection section 142, in each case a transition section 144 connects. Based on the transition section 144 then several turns 146 are visible, which merge into each other in a spiral. The sprialförmigen turns 146, in particular special those turns with the smallest radius or diameter, are radially inward, cut by a along the axial direction AR extending Querab section 148.

FIG. 9 shows a perspective partial sectional view of an alternative embodiment of the (first) heating module 12. In this case, the heating module 12 has a displacement element 224 which extends essentially over the entire length of the air guiding element 76. In particular, the displacer element 224 has a central portion 224a that is directly connected to the first guide portion 92 and the second guide portion 94. In the region of the first guide portion 92, a hemispherical cover member 224b is hen vorgese. Opposite the cover member 224b is the end face 224c. Here by inflowing air is displaced on all sides radially outward before entering the third guide portion 96 and in particular also supplied air for the measurement solution of the sensor device Mes. The flow cross-section of the air-guiding element 76 is annular over substantially the entire length. staltet. In this case, the annular flow channel 238 is limited by the Au ßenseite 234 of the displacer 224 and the inner side 236 of the Luftfüh guiding element 76th

FIG. 9 also shows an alternative arrangement of two heating coils 210, 212. The first heating coil 210 has a plurality of helically successive de turns 246 a. The second heating coil 212 has a plurality of helical successive turns 246b. Along the axial direction AR, the two heating coils 210, 212 are arranged so that their turns 246a, 246b alternate. In each heating coil 210, 212, the respective turns 246 a and 246 b are formed so that their diameter along the flow direction becomes larger.

FIG. 10 shows a perspective view of the second guide section 94. The side facing the third guide section 96 (FIGS. 6 and 7) is viewed. As already mentioned, a plurality of struts 102 are arranged on the second guide section 94. In the present example, three struts 102 are Darge presents. The number of struts 102 is not limited to three, it may be provided only two struts or more than three. From this representation, the receiving space 128 for the sensor device 130 (FIGS. 6 and 7), which is not shown here, can also be seen. On each strut 102, an air duct 132 is provided which is adapted to redirect heated air in the direction of the receiving space 128 or branch off. As a result, part of the air is branched off from different regions of the air flow and directed to the sensor device 130 (FIGS. 6 and 7). This results in a good mixing of air from the air flow, so that the temperature of a mixed air content is measured. This makes it possible to determine or detect an averaged temperature, which in particular corresponds as accurately as possible to the temperature when exiting the (first) heating module 12. The end face 124c of the predatory element is also shown, which serves to guide deflected air to the sensor device.

In the embodiments shown, in each case the displacer element 124, 224 and the sensor device or the sensor element 130 are located along the longitudinal axis of the first heating module 12. This axial arrangement also relates to the fuses 1 18 of the variant in FIGS. 6 and 7.

In Fig. 1 1, the first guide portion 92 is shown with the along a circle arranged deflecting elements 98. In this case, Figure 1A shows the flow or flow direction SR zugwandte (outer) side and Fig. 1 1 B the abge turned (inner) side of the first guide portion 92. The deflecting elements 98 are connected to a circular or annular base 97 with each other. The annular base 97 is also part of the Umlenkkranzes 100, which is formed by all order directing elements 98. Radially outside the deflecting elements 98 are surrounded by a further ring element 99. The radially outer ring member 99 is by means of webs 101 with a peripheral sleeve 103 of the first guide portion 92 verbun the. As can be seen from the two illustrations, the deflecting elements 98 have a blade-like profile. Radially outwardly between each two adjacent Ste conditions 101 each annular sector-shaped air passages 105 are formed. As already mentioned above, the first guide portion 92 with the deflection elements preference, in one piece, in particular, the first guide portion 92 may be made of a plastic injection molded part. Depending on the configuration of the system component, with which the first guide portion 92 gets in contact, or depending on the configuration of the possibly used Adap tervorrichtung, etc., the air passages 105 may also be closed by the components, the adapter device, the end portion of a pipe ,

FIG. 12 shows a simplified guide section 192 with deflecting elements 198a and 198b arranged along two essentially concentric circles. FIG. 12A shows the (outer) side of the flow or flow direction SR and FIG. 12B the opposite (inner) side of the guide section 192. Radially inner deflection elements 198a divert incoming air in a different direction than the radially outer side Deflecting elements 198b. The inner deflectors 198a are disposed along an annular base 197a. The outer deflectors 198b are disposed along an annular base 197b. The radially inner deflection elements 198a form a first deflection ring 100 in this example. The radially outer deflection elements 198b form a second deflection ring 300. It should be pointed out that the guide section 192 shown in FIG. 12, for example, instead of one in the previous figures and 1 1 shown first guide portion 92 can be used in a heating module 12. In the guide section 192 shown in FIG. 12, in particular further radially outward lowing constructive refinements are omitted or not shown, even if appropriate adjustments or constructive configurations are required for installation in a heating module 12, if necessary.

FIG. 13 shows a simplified guide section 292 with a deflecting element 298 designed as a conical ring. The annular deflecting element 298. Elements 298 is held by a plurality of struts 201 in a central or central area of the flow cross section. Due to the conical configuration of the annular deflecting element 298 incoming air is urged radially outward ver. In the interior of the deflecting element 298, a free space or a Ausspa tion 301 is provided, can flow through the air in the axial direction substantially undisturbed. It should be noted that the guide section 292 shown in FIG. 13 can be used in a heating module 12 instead of, for example, a first guide section 92 shown in the previous FIGS. 6 and 11 or a guide section 192 shown in FIG. In the guide section 292 shown in FIG. 13, in particular further radially outer structural configurations are omitted or not provided, even if appropriate adaptations or constructive configurations are required for installation in a heating module 12.

The figure 14 shows in the partial figures A) and B) two perspective and simplistic representations of a displacer 324, which is designed as a plate. The displacer element 324 is here attached by way of example via radial struts 325 to the second guide section 394. In the embodiment shown is a flat and curvature-free plate. In alternative embodiments, it is concave or convex or otherwise ge curved plates, for example in the form similar to the displacer shown in Figure 6 or 7 124. The displacer 324 is formed here as a circular plate. However, it is also conceivable that the predatory gerelement 324 be a polygonal plate, such as a hexagon, an octagon or the like. In the flow direction SR behind the displacer 324, a sensor element 330 is shown schematically. The position of the sensor element 330 is in particular such that it is located in the recirculation area (indicated by curved arrows RG) of the displacer element 324. The se embodiment is provided either alternatively or in addition to the embodiments with the webs. The embodiment shown can be arranged, for example, at the air inlet opening 56 (see Fig. 3 to 5) or at the air outlet opening 58 (see Fig. 3 to 5) of the heating module, so that in each case the temperature Tempe the supplied or discharged air can be measured.

Figure 15 shows in the sub-figures A) and B) a simplified Längsschnittan view and a simplified perspective partial sectional view of a displacements relements 424 in the central region of the heating module or the Luftführungsele element 476 and thus in the area in which the supplied air is heated. The central cylindrical - especially tubular - section 424a is of limited two lids 424b, 424c, which are each configured here as a flat plates. However, the plates could also be curved. Between the cylindri's portion 424 a and the covers 424 b, 424 c are each inter mediate spaces 427 which allow the flow of air. In the cylindrical section 424a from a sensor element 430 is further arranged, which is also here on the longitudinal axis LA as in the other embodiments. The mitt sized portion 424 a is at its axial ends in each case in recesses 429 b, 429 c of the lid 424 b, 424 c added. The recesses 429b, 429b Kgs nen be formed, for example, as an annular groove. The lid 424b, 424c and held by them middle portion 424a are arranged by means of struts 425 in Luftfüh approximately element 476.

In the displacement element 424, the air flows around the displacer 424, in particular around the central portions 424a from the Lufteintrittsöff opening 56 (Fig. 3 to 5) to the air outlet opening 58 (Fig. 3 to 5) of the heating module. However, the air in the recess 424d of the displacer 424a and the central portion 424a flows in the reverse direction UR, that is, back toward the air inlet 56. Therefore, at both ends of the cylindrical portion 424a, there are open feed regions 427 and exhaust regions 427 for the air. The air flow against the main flow direction SR is in Fig. 15A illus trated by corresponding arrows UR.

The air guide member 476 of Figure 15 has a relation to a central plane which orthogonally intersects the longitudinal axis LA, substantially symmet ric structure. Accordingly, a heating module with such from design of the air guide element 476 can be installed in any orientation in the Strö mungsweg a heating system.

Figure 16A shows a simplified perspective view of the Heizmo module 12, as has already been presented in Figures 2 to 9. In the area of the air inlet opening 56 is a bent or curved pipe section 41 is introduced. The pipe or pipe bend 41 is connected to the module housing 36 by means of a pipe adapter 44 already shown in FIG. As an alternative to such a pipe bend 41, it is also conceivable to connect a curved or bent hose (not shown) to the air inlet opening 56, in particular using the pipe adapter 44 or a hose connection optionally adapted adapter. The pipe bend 41 is a Embodiment of an air guide component, which serves to homogenize the flow of air, which is supplied to the first heating module 12.

The curved or curved pipe section 41 is used in particular to supply air conveyed by a blower, not shown, in a homogeneous current as possible to the heating module 12. If the most homogeneous air flow leads supplied, the effectiveness of the heating module 12 is increased.

Figure 16B shows a sectional view (longitudinal section) through the pipe section 41 and the transition into the module housing 36. In the pipe bend 41 a plurality of ribs or arcuate portions 43 are formed. These ribs or arcuate sections 43 serve to guide air and are examples of deflecting elements in the interior of the air conduction component. By way of example, four ribs or Bogenab sections 43 are shown, with this example, five tracks 45 result in which air can flow. By way of the ribs or curved sections 43, air in the tracks 45 can be guided in a targeted manner in the direction of the deflecting elements 98. In other words, it can also be said that the deflecting elements 98 are extended by the ribs or Bo genabschnitte 43.

The tube adapter 44 has an upstream first portion 44b having a first inner diameter IM1. Downstream, a two ter section 44c connects with a second inner diameter IM2. The first inner diameter IM 1 is greater than the second inner diameter. The transition between the first portion 44 b and the second portion 44 c is formed by a stop surface 47. At this stop surface 47 beispielswei se a (straight) pipe or hose or the bent pipe section 41 abut. In this case, the outer diameter of the tube piece 41 is matched to the inner diameter IM 1 of the first portion 44b.

FIG. 16C shows the tube adapter in a simplified perspective depiction. In particular, the two sections 44b and 44c can be seen. Ent along the inner circumference of the two sections 44 b, 44 c, the stop surface 47 can be seen. At the first portion 44 b, in which a pipe to be connected or a hose to be connected is received, locking elements 49 can be seen before. In the illustration, by way of example two locking elements 49 Darge presents, wherein the number of locking elements 49 is not limited to two, son countries can be larger. It goes without saying that on the pipe or hose also corresponding counterparts are present, in particular locking recesses into which the locking elements 49 can engage. Furthermore, can At the first portion 44b also guide recesses 51 may be arranged. In such guide recesses 51 corresponding guide elements can be introduced, which are present on the pipe to be connected (eg pipe bend 41) or on the hose to be connected.

The tube adapter 44 may be connected to the module housing 12 by a plurality of screw connections 53, for example. Of course, interlocking or corresponding connection structures on the tube adapter 44 and on the pipe or pipe bend 41 to be connected may also be different in nature than the latching elements 49 and guide cutouts 51 illustrated here. In particular, the locking elements and corresponding Raustaufnahmen could be arranged reversed. The same applies to guide recesses and ent speaking guide elements.

In an alternative - not asked - execution of the pipe bend 41 is free of a curvature and is thus equal to a straight piece of pipe. The ribs or arcuate portions 43 of this embodiment of the pipe bend 41 are therefore also free of curvature in this embodiment.

In a supplementary embodiment, there is a pipe bend 41 of the form described with reference to FIG. 16 or without a curvature at the air outlet opening 56 of the heating module 12. Depending on the configuration, thus at least the supplied or the discharged air is homogenized.

The heating system 10 presented here with reference to FIGS. 1 to 4 or the (first) heating module 12 presented here with reference to FIGS. 5 to 16 make it possible in a flexible manner to construct a heating system or to expand an existing heating arrangement in a habitable one Driving tool. In particular, the (first) heating module 12 is designed as a compact electric heater, which can be connected in a simple manner with air-conducting elements so that air can be heated by means of the (first) heating module 12. In this case, the (first) heating module 12 has no separate (integrated) fan, son countries is connected to a separate fan, which may be part of an existing heating (second heating module 28) in particular.

Claims

claims 1 . Heating system (10) for a habitable vehicle, with  a first heating module (12) which is accommodated in a first module housing (36), wherein the first heating module (12) has an air inlet opening (56) and an air outlet opening (58),  one of the first heating module (12) separate blower device (14) which is accommodated in a second module housing (38),  wherein the blower device (14) and the first heating module (12) by means of egg ner connection arrangement (16, 40, 42) are air flow technically a related party, and  wherein the blower device (14) is arranged relative to the first heating module (12) such that air supplied by the blower device (14) enters the first heating module (12) at the air inlet opening (56), flows through the first heating module (12) and at the air outlet opening (58) the first heating module (12) leaves again. 2. Heating system according to claim 1, wherein the fan device (14) upstream of the first heating module (12) is arranged. 3. Heating system according to claim 1 or 2, wherein the heating system with the ers th heating module (12) and the fan device (14) wirelessly or wired connected control device (34, 82, 84, 86) which is adapted to the first Heating module (12) and the fan device (14) to control. 4. Heating system according to claim one of the preceding claims, wherein the first heating module (12) has a sensor device (130), which is directed to detect the temperature of the first heating module (12) flowing through the air. 5. Heating system according to one of the preceding claims, wherein the first heating module (12) in the first module housing (36) received air guide element (76) having a plurality of interconnected guide portions (92, 94, 96) between the air inlet opening ( 56) and the air outlet opening (58) are arranged one behind the other. 6. Heating system according to claim 5, wherein the air guide element (76) wenigs least two of the following guide portions (92, 94, 96) comprises: a first guide portion (92) connected to the air inlet (56),  a second guide portion (94) which is connected to the air outlet opening (58), and  a third guide portion (96) received between and connected to the first and second guide portions (92, 94). 7. Heating system according to one of the preceding claims, wherein the first heating module (12) is a heater which is designed for heating air, which promotes the fan device (14). 8. Heating system according to one of the preceding claims, wherein the first heating module (12) is an electric heater with a heating coil (1 10, 1 12, 210, 212), which is designed for heating air, which promotes the fan device (14) , 9. Heating system according to claim 6 and 8, wherein the heating module (1 10, 1 12, 210, 212) in the third guide portion (96) is arranged. 10. Heating installation according to claim 6 or 9, wherein the first guide section (92) has a plurality of - preferably statically fixed - deflecting elements (98), so that air conveyed by the blower device (14) enters the first heating module (12) and / or is deflected at the exit from the first heating module (12) on the deflecting elements (98) in certain directions. 1 1. Heating installation according to one of the preceding claims with a second heating module (28), which is separate from the first heating module (12) and which is upstream of the first heating module (12). 12. Heating system according to claim 1 1, wherein the second heating module (28) and the blower device (14) together in the second module housing (38) are introduced underweight. 13. Heating system according to claim 3 in conjunction with claim 1 1 or 12, where at the control device (34, 82, 84, 86) with the second heating module (28) wire or wired connected and is adapted to the second heating module (28) to communicate. 14. Heating system according to claim 13, wherein the control device (34, 82, 84, 86) is adapted to the heating system  with the first heating module (12) alone and the blower device (14) or with the second heating module (28) alone and the blower device (14) or  together with the first heating module (12) and the second heating module (28) and the blower device (14) to operate in a heating mode. 15. Heating system according to one of claims 1 1 to 14, wherein the second Heizmo module (28) is an electric heater or a gas heater or a diesel heater. 16. Heating system according to one of the preceding claims, wherein the first module housing (36) by means of an adapter device (40) on the second Modulgehäu se (38) can be fastened or attached. 17. Heating system according to one of claims 1 to 15, wherein the first heating module (12) and the fan device (14) are arranged spatially separated from each other and air flow technology by means of a pipe (42) or a hose (42) are interconnected. 18. Heating system according to one of the preceding claims, with at least ei NEM downstream of the first heating module (12) arranged plant module, the air flow technology with the first heating module (12) is connected, wherein the system module another pipe (62) or a hose (62). or an air flow divider (64) or another blower device. 19. Heating system according to one of the preceding claims, with at least egg ner air guide component - preferably in the form of a pipe bend (41) - for a homogenization of a flow in the air guide component (41) guided air. 20. Heating system according to claim 19, wherein the air guide component (41) with the air inlet opening (56) or the air outlet opening (58) of the module housing (36) is connected. 21. Heating installation according to one of the preceding claims, wherein the Luftfüh approximately component (41) at least one pipe bend (41) with arc sections (43) defining tracks (45) in the tube bend (41), the tracks (45) serving to guide the air. 22. Heating system according to one of the preceding claims, wherein the first heating module (12) both directly and via an adapter device (40) with at least one separate entity - for example, a blower device (14) or a general system component or a pipe (42) or a Hose (42) or a pipe bend (41) - or with at least two different union separate entities is connectable, so that a deflection of air in a guide portion (92, 94) of the first heating module (12) and in the immediacy bar or over the adapter device (40) with the first heating module (12) verbun which entity (14, 42) takes place. 23 heating module (12) for a heating system (10) of a habitable vehicle with - a module housing (36) having an air inlet opening (56) and a Air outlet opening (58),  a in the module housing (36) received air guide member (76) having a plurality of guide portions (92, 94, 96) and which is connected to the Luftein outlet opening (56) and the air outlet opening (58), and - At least one heating element (1 10, 1 12, 210, 212), wherein the heating element (1 10, 1 12, 210, 212) is adapted to heat air flowing from the air inlet opening (56) to the air outlet opening (58).