RU24422U1 - CLIMATIC INSTALLATION AND AIR FLOW MANAGEMENT DEVICE IN IT - Google Patents

Abstract

1. A climate system comprising a fan, an evaporator for cooling and a heat exchanger for heating air, housed in a housing in which rotary shutters are located at the outlet openings, characterized in that screens are installed at the shutters, the shutters are aligned with their supporting parts, the shutter supporting parts connected to leashes connected by rods to the governing body. 2. Climatic installation according to claim 1, characterized in that the shutters are installed in grooves made in the supporting parts, while axial threaded holes are made inside the supporting parts and screws are screwed into them, the end sections of which are located in the recesses made in the shutters. 3. Climatic installation according to claim 2, characterized in that the shutter leads are made of a plate and are located on the screws between their head and the support part. Climatic installation according to claim 3, characterized in that on the plates forming the leashes, there is a spike having a threaded connection with a rod, which has a threaded hinged connection with a screw fixed to the control element. 5. Climatic installation according to claim 4, characterized in that the thrust consists of nuts and a rod connected to the nuts by welding. Climatic installation according to claim 2 or any subsequent paragraph, characterized in that the outlet openings are made round and placed on the end wall of the case in a checkerboard pattern in three rows, with three outlet openings in the upper and lower rows, and two openings in the middle row , while near each row of exhaust openings there is a single rectangular shutter installed in the said grooves on the supporting parts.

Description

dampers having a lever drive from a floating disk suspended on cranks (German Patent Application No. 3813116 IPC B60H 1/00, US Patent No. 5052282 NCI 454/145). But this air conditioner has a complex and bulky design. At the same time, it does not disclose a device for fixing rotary dampers, which serve to distribute air flows.

From the description of U.S. Patent No. 4503755, NKI 454/335 IPC F24F 13/10, an air flow control device in an air conditioner is known comprising a rotary damper made of sheet material mounted on supporting parts consisting of a cylindrical rod and mounted thereon an elastic bracket having a spike on one of the shelves located in an opening made in the shutter. However, such a fastening of the shutter is complex and time consuming.

As a prototype of an air conditioning system, a vehicle air conditioning system is adopted, comprising a fan, an evaporator for cooling the air and a heat exchanger for heating the air, located in a box-shaped housing in which outlet openings are located on the end wall on a different view, in front of which cantilevered butterfly valves are installed, having a single drive from one governing body (German patent No. 19526946 IPC B60H 1/00, published November 27, 1997). Such an air conditioner has a compact design that can be conveniently placed in a car near a window sill. However, due to the cantilever arrangement of the dampers, it has an increased aerodynamic resistance to air flow, which requires the use of a more powerful fan.

The problem to be solved is the creation of a compact air conditioning system with simple and convenient control of the air flows created in it, which provides reduced aerodynamic resistance to the flows of these flows to reduce energy costs for the fan drive.

To solve this problem, in a compressor installation containing a fan, an evaporator for cooling air and a heat exchanger for heating air, placed in a housing in which rotary shutters are located at the outlet openings, screens are installed at the shutters, the shutters are located

coaxially with their supporting parts, the supporting parts of the shutters are connected to leashes connected by rods to the control body.

In this embodiment, the air conditioner has a simple and reliable control of its air flow with the help of rotary dampers compactly placed in the housing between the screens, which, when opened, are located upstream in a position in which minimal aerodynamic resistance to air passage is obtained, while a single drive of all these dampers is provided from one governing body, which simplifies the design of the air conditioning system.

These flaps are installed in grooves made in the supporting parts, while axial threaded holes are made inside the supporting parts and screws are screwed into them, the end sections of which are located in the recesses made in the flaps.

The leashes of the shutters are made of a plate and are located on the screws between their head and the support part.

On the plates forming the leashes, there is a spike having a threaded articulation with a rod, which has a threaded articulation with a screw fixed to the control.

Mentioned thrust consists of nuts and a rod connected to the nuts by welding.

Outlets are made round and placed on the end wall of the case in a staggered manner in three rows, with three outlet openings located in the upper and lower rows, and two openings in the middle row, with a single rectangular shutter installed near each row of outlet openings in the mentioned grooves on the supporting parts. Above the evaporator, an air duct for supplying heated air from a heat exchanger is located at the level of the upper row of outlet openings.

The case of the air conditioner consists of a casing made of a polymeric material and a metal box inserted into it, to which the screens are connected and on which pipes of the treated air outlet are located parallel to the heated air supply duct.

which are the core elements fixed in the side walls of the box.

As the closest analogue of the air flow control device in a kprimatic installation, a control device is adopted comprising flat rotary dampers located in the housing on supporting parts, consisting of a sleeve with a rectangular axial hole and a faceted rod installed in it, located in a rectangular hole made in a clip, clamping the shutter (application No. 439345 for the grant of a European patent, IPC F24F 13/14). However, such a fastening of the rotary damper is very complicated and not sufficiently reliable, since when the body is shaken, an undesirable displacement of the shutters in the clips is possible.

The task at hand is the creation of a simple and reliable air flow control device in an air conditioner.

The solution to this problem is provided by the fact that in the airflow control device in an air conditioner containing rotary shutters located in the housing on the support parts, grooves are made at the end of the support parts in which the shutters are installed, and a threaded hole is made in the support parts and therein a screw is installed, the end portion of which is located in a recess made in the shutter.

With such fastening of the dampers of the air flow control device, their supporting part has a simple shape and reliably holds the damper in its groove with a regular screw fixing it in a predetermined position.

In this control device, the supporting parts of the shutters are made in the form of a tube with a rim intersecting with the mentioned groove.

One of the supporting parts of each damper, made in the form of a cork, has a leash on the screw shaft between its head and the supporting part. The mentioned leash is made of a plate. On the plate forming the flap’s leash, there is a spike having a threaded swivel joint with a thrust connected to the flap control. The damper control is made of a plate in the form of a disk in which screws are installed parallel to its axis of rotation, having a threaded articulated connection with rods connected to the damper leads.

Figure 2 shows this air conditioner on the back side, a longitudinal section.

Figure 3 shows a metal box with screens.

The figure 4 shows the mounting device and actuator rotary damper.

The figure 5 is a section along aa of figure 4.

The air conditioning system comprises a box-shaped case 1, consisting of a casing 2 made of a polymeric material, and a metal box 3 inserted into it. The casing consists of a lower part forming the base of the body and an upper part forming the base cover. The upper and lower parts of the casing are interconnected essentially in a horizontal plane, forming an oblong box that can be placed in a passenger car across it under the so-called window sill.

In the housing 1 (Fig. 1), a fan 4 (Fig. 2) is located, having a drive from an electric motor 5, an air-liquid heat exchanger 6 connected to a liquid cooling system of a car engine for heating air, and an evaporator 7 for cooling air located in the circulation circuit together with the compressor and condenser. The evaporator 7 is mounted on the lower wall 8 of the housing transverse to it at a distance from the upper wall 9. The heat exchanger b is located between the lower 8 and upper 9 walls of the housing opposite the portion of the duct 10 communicating the evaporator 7 with the fan 4. Moreover, the heat exchanger 6 is located across the evaporator 7 opposite its upper plot and installed in rectangular holes made in the side walls of the upper part of the housing. Above the evaporator 7 there is an air duct 11 communicating with the cavity 12 above the heat exchanger 6. Between the upper portion of the evaporator 7 and the heat exchanger 6 there is a cavity 13 for air passage, separated from the heat exchanger 6 by a partition 14, forming an air duct 11 with the upper wall 9 of the casing and with its side walls heated air supply.

Inside the casing 1, in its lower part, under the heat exchanger 6, a metal frame 15 is installed, having windows 16 and 17 for air to pass from the fan 4, respectively, to the evaporator 7 and to the heat exchanger 6. In the metal frame 15, the fan 4 is placed in a vertical position, i.e. its axis of rotation is perpendicular to the bottom of the frame 15.

A rotary damper 18 is placed in the metal frame 15, which closes in extreme positions the air passage from the fan 4 to the heat exchanger 6 or to the evaporator 7. The damper 18 is installed in the metal frame 15 with the possibility of abutment with its peripheral edge in the lower extreme position in the bottom of the frame 15 and the possibility of laying it in friend, i.e. in the upper extreme position, on the saddle 19, located in a metal frame 15 around the window 17 under the heat exchanger. The saddle 19 is made of elastic material to ensure that the shutter 18 is snug against it around its entire perimeter when laying this shutter on the saddle. On the side of the seat 19 in the corner between the upper and end walls of the metal frame 15 is installed the axis 20 of the rotary valve 18, protruding from the housing 1.

The rotary valve 18 has a servo-drive comprising a rod 21 (FIG. 1) with elastic elements 22 and 23 made in the form of compression springs located between the stops 24 and 25 on the rod and the slider 26, pivotally connected to a lever 27 located on the axis 20 of the valve 18 outside the housing 1. The rod 21 is pivotally connected to a lever 28 having a drive from an electric motor with a gearbox located in an autonomous housing 29, mounted on the housing 1 of the air conditioner.

Above the fan 4 on the side of the section of the housing 1 that covers the heat exchanger 6, a tubular metal superstructure is installed, forming a shaft 30 for intake of external air, having an open top and a window 31 in the side wall. At the window 31 there is a rotary shutter 32 for providing air recirculation. The damper 32 is driven by a pneumatic cylinder 33 (Fig. 2), which communicates through a controlled valve with a source of rarefaction of air, namely, with the inlet pipe of the car engine.

On the flat end wall 34 of the casing, formed by a metal box 3, at different heights, cylindrical tubes 35 with round outlet openings 36, 37, 38 are arranged parallel to each other. The axis 39 of these openings is parallel to the heated air duct 11. Holes 36-38 are placed on the wall 34 in a checkerboard pattern in three rows. In the upper and lower rows are three outlet openings, and in the middle row are two openings. The upper row of exhaust openings 36 is located at the level of the duct 11 for supplying heated air from

heat exchanger. These openings are designed to direct warm air through the hoses to the feet of the driver and passenger. Holes 37 are used to direct air to the windshield to prevent icing, holes 38 are used to direct cool air to the face.

In front of the outlet openings, controlled rotary shutters 40, 41, 42 are installed. Moreover, near each row of outlet openings there is a single flat rectangular shutter made of a plate. The flaps are coaxial with their supporting parts 43, that is, the axis of symmetry of each flap is coaxial with the axis of rotation of its supporting parts 43. The supporting parts 43 are in the form of a tube with a rim 44 in the form of a collar located between the side wall 45, 46 of the metal box 3 and the flap . At the end of each supporting part, a radial groove 47 is made, intersecting with the rim 44, and a shutter is inserted into it. Inside the support part, in the axial through threaded hole, a screw 48 is installed in it, the end portion of which is located in the recess 49 made in the shutter. This screw 48, screwed into the support part 43, locks the shutter in position in alignment with the support parts.

At the shutters 40, 41, 42 inside the housing 1 there are guide screens 50, 51, 52, 53 with a concave cylindrical or stepped surface connected to the metal box 3. The screens 51, 52 located between the shutters consist of interconnected wavy plates , between which the axial support elements 54 are located in the axils, for example, ordinary screws or rivets fixed to the side walls of the box 3.

To rotate the dampers 40, 41, 42, their support parts 43 are connected to leashes 55 connected by rods 56 to a control 57 made of a plate in the form of a disk of arbitrary shape. The control 57 is installed on the shaft 58 of its drive, carried out from the stepper motor 59 through a planetary gear. The lead 55 is made of a sheet plate and mounted on a screw 47 between its head and the support part 43. On the plate forming the damper lead 55 there is a stud 60 with a threaded surface having a threaded joint with a rod 56. The rod 56 has a threaded joint with a screw 61 secured with the help of

nuts 62 on the control 57 parallel to its pivot axis. Rod 56 consists of nuts 63 and a rod 64 connected to the nuts by welding.

The side wall 45 of the metal box 3 is placed inside the casing 2. The other side wall 46 is made longer and is located outside. On it on the brackets is mounted the support of the stepper motor 59 of the drive of the control 57.

The space inside the housing 1 between the evaporator 7 and the end wall 34 of the metal box 3, together with the guide screens 50-53 and the rotary shutters 40-42 located in this space, forms an air distribution chamber 65, which serves to selectively supply the treated air, i.e. heated or cooled depending from weather conditions, in the passenger room (in the cabin) of the car to ensure the comfort of passengers in it.

Climatic installation works as follows.

In cold weather, when it is necessary to supply warm air to the passenger compartment, the shutter 18 is turned down to the stop with a peripheral edge into the bottom of the metal frame 15, closing the air passage to the evaporator 7 and completely opening the air passage to the heat exchanger 6, which is essentially a heater. Then the air flow pumped by the fan 4 passes through the duct 10, smoothly turns upward above the shutter 18 and through the window 17 in the metal frame 15 enters the heat exchanger 6, where it is heated. Heated air from the cavity 12 through the duct 11 passes into the air distribution chamber 65, from where it enters the passenger room. Moreover, in the initial position of the control 57, when the shutter 41 is fully open, all the warm air through the openings 37 passes to the windshield of the car to heat it in order to remove condensate from it. After the windshield has been cleaned of moisture, the control 57 is turned, covering the shutter 41 and opening the shutter 40. When the shutter 40 is opened, heated air from the duct 11 is directed to the openings 36 and then through the nozzles 35 and hoses to the feet of the passengers to heat them. When installing the damper 40 in a horizontal position, the damper 41 completely closes the air passage to the openings 37 and then the entire stream of heated air coming from the duct 11 passes directly to the openings 36. Moreover, the damper 40, in a horizontal position and having a small thickness,

renders only insignificant aerodynamic resistance to air passage. To accelerate the heating of the passenger room, the shutter 32 opens the window 31 and closes the outside air inlet into the shaft 30. Then, the heated air from the passenger room through the window 31 is sucked in by the fan 4 into the shaft 30, enters the fan 4 and is pumped through the heat exchanger 6 and the air distribution chamber 65 again in the passenger room. After heating the air in the passenger room to the desired temperature, air recirculation is stopped by closing the window 31 with a shutter 32, and then fresh air heated in the heat exchanger 6 enters the passenger room through the shaft 30 from the outside. If you need to reduce the heat influx into the passenger room, then reduce the speed fan 4, in addition, the heat flow can be reduced by raising the damper 18 and thereby opening the air passage through the evaporator 7. The air flow through the heat exchanger 6 is reduced and, therefore, becomes I am less than the amount of heat carried away from it. In addition, there is a cooling of the air bypassed in parallel flow through the evaporator 7 and mixed with warm air coming from the heat exchanger. As a result, in the passenger room, the air temperature drops to a value depending on the angle of elevation of the shutter 18.

In hot weather, when it is necessary to cool the air in the passenger room, open the shutter 42, and the shutter 18 is turned up to the stop in the seat 19 and tightly pressed against it due to the presence of elastic elements 22 and 23 in the drive of the shutter 18. In this case, the entire air flow pumped by the fan 4, from the duct 10 passes through the window 16 in the metal frame 15 to the evaporator 7, which is essentially a refrigerator. In the evaporator 7, the air is cooled. Then, the cooled air stream from the evaporator 7 directly, without turning, passes through the air distribution chamber 65 past the open damper 42 to the outlet openings 38, through which it enters the passenger room towards the head. In less hot weather, the amount of cold air supplied from the air conditioner is reduced by reducing the speed of the fan 4. However, this reduces the intensity of air circulation through the passenger room. To ensure intensive air circulation, the entry into the passenger compartment of its powerful flow with the desired low temperature, you can

open the shutter 18, taking it down from the seat 19, and then the cold air coming from the evaporator 7 is diluted with hot air heated in the heat exchanger 6 and coming from it through the duct 11 into the air distribution chamber 65, where both air flows (heated and cold ) are mixed together. This can be the regulation of air temperature in the passenger room of the car.

The control of the shutter 18 is remote, carried out from the remote control located on the dashboard of the car. On command, the stepping motor, which is located in the autonomous housing 29, is turned on. This electric motor rotates the lever 28 through the gearbox, which, acting on the rod 21, acts through the elastic elements 22 and 23 and the slider 26 on the lever 27 located on the valve axis 20 18. When the lever 27 is rotated, the shutter 18 is rotated 18. Moreover, after the shutter 18 is in its extreme position, when it rests on the saddle 19 or on the bottom of the frame 15, the lever 28, while still turning at a certain angle, compresses one of the elastic elements 22 with the rod 21 and whether 23, creating a constant force of pressing the shutter, eliminating the undesirable mixing of heated or cold air.

The control of the dampers 40, 41 and 42 of the air distribution chamber is also remote, carried out from the aforementioned remote control on the instrument panel. When you turn on a given command of a stepper motor 59, a discrete rotation of the control 57 of the indicated flaps occurs. Turning, the control 57 moves the rod 56, pivotally connected with leashes 55, mounted by screws 48 on the supporting parts 43 of these dampers. The rods 56, moving, rotate the leads 55 and the flaps 40-42 with them at a given angle, changing, at the request of the passengers, the flow rate of the treated air through the exhaust openings 36-38 to provide the most favorable conditions for passengers to stay in the car.

Due to its compactness, the created air conditioning system is conveniently located in the passenger room under the windshield below the window sill and provides reliable means for proper air heating in cold weather and its necessary cooling in hot weather, creating the necessary microclimate inside the passenger room for a comfortable stay in it. At the same time, a simple and convenient single drive of the rotary shutters of the air distribution chamber of the climate

installations, which when opening the outlet openings are located along the flow of treated air, which reduces the aerodynamic resistance of its passage and facilitates the control of air flows.

Claims (15)

1. A climate system comprising a fan, an evaporator for cooling and a heat exchanger for heating air, housed in a housing in which rotary shutters are located at the outlet openings, characterized in that screens are installed at the shutters, the shutters are aligned with their supporting parts, the shutter supporting parts connected to leashes connected rods to the control body.  2. The air conditioning system according to claim 1, characterized in that the shutters are installed in grooves made in the supporting parts, while axial threaded holes are made inside the supporting parts and screws are screwed into them, the end sections of which are located in the recesses made in the shutters.  3. The air conditioning system according to claim 2, characterized in that the leads of the dampers are made of a plate and are located on the screws between their head and the support part.  4. Climatic installation according to claim 3, characterized in that on the plates forming the leashes, there is a spike having a threaded connection with a rod, which has a threaded hinged connection with a screw fixed to the control.  5. Climatic installation according to claim 4, characterized in that the thrust consists of nuts and a rod connected to the nuts by welding.  6. Climatic installation according to claim 2 or any subsequent paragraph, characterized in that the outlet openings are made round and placed on the end wall of the body in a checkerboard pattern in three rows, with three outlet openings in the upper and lower rows, and in the middle row two openings, with a single rectangular shutter mounted in each of the grooves on the support parts near each row of outlet openings.  7. The air conditioning system according to claim 6, characterized in that a heated air supply duct from a heat exchanger located at the level of the upper row of outlet openings is made above the evaporator.  8. The air conditioning system according to claim 7, characterized in that its casing consists of a casing made of polymeric material and a metal box inserted into it, to which screens are connected and on which pipes of the processed air outlet are located parallel to the heated air supply duct.  9. Climatic installation according to claim 8, characterized in that the screens located between the rotary dampers consist of interconnected wavy profile plates, between which there are rod support elements fixed in the side walls of the box.  10. An air flow control device in an air conditioner comprising rotary shutters located in the housing on supporting parts, characterized in that grooves are made in the end of the supporting parts in which the shutters are installed, while the supporting parts have an axial threaded hole and is installed in it a screw whose end portion is located in a recess made in the shutter.  11. The control device according to claim 10, characterized in that the supporting parts of the shutter are made in the form of a tube with a rim intersecting with the said groove.  12. The control device according to claim 11, characterized in that at one of the supporting parts of each damper, made in the form of a tube, on the screw shaft between the head and the supporting part is a leash.  13. The control device according to item 12, wherein the leash is made of a plate.  14. The control device according to item 13, characterized in that on the plate forming the flap leash, there is a spike having a threaded joint with a rod connected to the flap control. 15. The control device according to 14, characterized in that the control valve is made of a plate in the form of a disk, in which screws are installed parallel to its axis of rotation with a threaded joint with rods connected to the leads of the valves.