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WO2024248345A1 - Ensemble couvercle arrière de dispositif de chauffage d'air pour véhicule et dispositif de chauffage d'air pour véhicule le comprenant - Google Patents

Ensemble couvercle arrière de dispositif de chauffage d'air pour véhicule et dispositif de chauffage d'air pour véhicule le comprenant Download PDF

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Publication number
WO2024248345A1
WO2024248345A1 PCT/KR2024/005929 KR2024005929W WO2024248345A1 WO 2024248345 A1 WO2024248345 A1 WO 2024248345A1 KR 2024005929 W KR2024005929 W KR 2024005929W WO 2024248345 A1 WO2024248345 A1 WO 2024248345A1
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WO
WIPO (PCT)
Prior art keywords
sensor
heating device
air
vehicle
ptc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/KR2024/005929
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English (en)
Korean (ko)
Inventor
지덕구
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Jahwa Electronics Co Ltd
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Jahwa Electronics Co Ltd
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Publication date
Application filed by Jahwa Electronics Co Ltd filed Critical Jahwa Electronics Co Ltd
Priority to CN202480024422.4A priority Critical patent/CN120936503A/zh
Publication of WO2024248345A1 publication Critical patent/WO2024248345A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00792—Arrangement of detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC resistor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
    • F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2246—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant obtaining information from a variable, e.g. by means of a sensor

Definitions

  • the present invention relates to a rear cover assembly of an air heating device for a vehicle, and more particularly, to a rear cover assembly of an air heating device for a vehicle that heats air introduced from the outside or inside for heating a vehicle, and to an air heating device for a vehicle including the same.
  • a PTC heater (Positive Temperature Coefficient Heater) is an electric heating element that generates heat by utilizing the quantum thermal conversion phenomenon.
  • Quantum thermal conversion refers to the phenomenon in which heat is generated due to electrical resistance that occurs in the process of electricity flowing.
  • PTC heaters have a positive temperature coefficient characteristic, which means that when a constant current flows, the temperature of the heater increases, but at a certain temperature, it does not increase any further and remains at a constant level. Because of this characteristic, PTC heaters are widely used in automobile interior temperature control systems.
  • the interior temperature is controlled using the heat generated when the engine is operating.
  • the PTC heater acts as a pre-heater as a preliminary and beforehand means to help control the interior temperature before the engine temperature reaches a certain level.
  • PTC heaters have the advantages of fast heating speed, stable performance, and durability.
  • PTC heaters use electrical energy efficiently, consume less electrical energy, and in particular, due to their characteristics, when electricity is supplied, the electrical resistance of the material increases and the current decreases, so they have the advantage of preventing overheating and being safe for long-term use.
  • PTC heaters are widely adopted as an auxiliary or primary means for controlling the interior temperature of automobiles. They are generally installed at the rear of the blower based on the air flow inside the case of the air conditioner, thereby directly applying heat to the air passing through the interior according to the operation of the blower, thereby implementing interior heating.
  • These automotive PTC heaters include, as their main components, a heater core section comprising a plurality of PTC units that generate heat and a heat dissipation fin that provides passages through which air can pass and receives heat from the PTC units and applies heat to the air passing through them, and a control section that controls the amount of heat generated by the PTC units.
  • a temperature sensor is applied as a safety device to protect the heater and its surrounding parts from overheating that may occur due to the heat generated in the heater core not being properly released when the blower does not operate normally due to a control error or mechanical defect.
  • the temperature sensor detects when the temperature of the heater rises abnormally due to a decrease in wind speed caused by a control error or mechanical failure of the blower, and outputs an electrical signal to the controller. Upon receiving the signal, the controller takes subsequent safety measures, such as cutting off the current supply to the heater.
  • the temperature sensor when the temperature sensor is placed on the side of the heater core in this way, the temperature sensor is positioned at a certain distance laterally from the heater core, which is the actual heat-generating part, so a large difference occurs between the actual temperature of the heater core and the temperature detected by the sensor, and the response speed slows down by that amount, making it difficult to respond quickly.
  • Patent Document 1 Korean Patent No. 10-2442176 (Announcement Date 2022.09.08)
  • the technical problem to be solved by the present invention is to provide a rear cover assembly of an air heating device for a vehicle and an air heating device including the same, which can effectively utilize existing components of an air heating device (PTC heater) to place a sensor close to the rear of the air discharge side of the heater core without separate additional components, thereby more accurately detecting the temperature of air heated while passing through the air heating device, thereby increasing the accuracy of temperature control, and safely protecting the heater itself or its peripheral components from overheating.
  • PTC heater air heating device
  • a rear cover assembly coupled to the air outlet side of a heater assembly including PTC units and heat dissipation fins,
  • a cover part having a plurality of openings of the same or different sizes defined by a plurality of connecting members and a sensor mounting part formed on a side facing the rear side of the heater assembly through which air is discharged;
  • It includes a sensor unit mounted on the above sensor mounting unit and detecting the flow rate of air or the temperature of air passing through the heater assembly;
  • the sensor constituting the above sensor part is mounted and fixed in the sensor mounting hole,
  • a rear cover assembly of an air heating device for a vehicle characterized in that a sensor cable connected to the sensor is guided to the outside of the cover part along the cable installation groove and electrically connected to a control part of the heater assembly.
  • the cover part of the rear cover assembly comprises a pair of side plates spaced apart from each other by a distance, and a connecting member including at least two or more horizontal members interconnecting the side plates, wherein the connecting member may be configured to comprise at least two or more of the horizontal members, a plurality of vertical members interconnecting the horizontal members in a form orthogonal to the horizontal members, and a plurality of bridges connecting two adjacent vertical members.
  • the sensor mounting hole is formed in the bridge, and the cable installation groove is formed along the horizontal member and the vertical member, so that the sensor cable can be guided to the outside of the cover part along the cable installation groove.
  • a cable detachment prevention device may be formed in the shape of a protrusion in the cable installation groove to prevent the sensor cable installed along the groove from being detached arbitrarily.
  • the cable detachment prevention device in the shape of a protrusion may be formed at uniform or uneven intervals along the cable installation groove.
  • the sensor mounting hole may be formed so that one sensor is positioned corresponding to each heating area of the heater assembly in which heating is controlled by area.
  • the sensor mounting hole may be formed so that the sensor is positioned corresponding to the boundary position between the heating areas of the heater assembly in which heating is controlled by area.
  • the senor fixed to the sensor mounting hole may be a temperature sensor or an air flow sensor.
  • a temperature sensor and an air flow sensor may be simultaneously mounted in the sensor mounting hole.
  • a heater assembly comprising a plurality of PTC units, heat sink fins, and a control element
  • a vehicle air heating device including a rear cover assembly according to the aforementioned aspect coupled to the air discharge port side of the heater assembly.
  • a vehicle air heating device may include a heater assembly including a heater core portion including a plurality of PTC units and a heat dissipation fin, each fin being positioned between two adjacent PTC units; a frame portion configured to receive and protect the heater core portion, and including a pair of side frames and a lower holder having mounting grooves corresponding to each of the PTC units while interconnecting the side frames; and a control portion coupled to an upper portion of the frame portion receiving the heater core portion therein and having the control element mounted therein.
  • control unit is coupled to the upper part of the frame unit that accommodates the heater core unit inside, and includes a housing having an installation space formed inside, and a substrate having a plurality of bus bars that electrically connect one end of the PTC units and a control element that is electrically connected to the bus bars and individually controls the heating of the PTC units can be mounted inside the housing.
  • the PTC unit may be composed of a heating element and a heating tube sealingly accommodating the heating element.
  • the heating element may be configured to include an insulating frame in which first element receiving holes and second element receiving holes are formed, first PTC elements each installed in the first element receiving hole, second PTC elements each installed in the second element receiving hole, a first electrode plate arranged to simultaneously contact one surface of the first PTC elements, a second electrode plate arranged to simultaneously contact one surface of the second PTC elements, and a common electrode plate arranged to simultaneously contact the other surface of the first PTC elements and the other surface of the second PTC elements.
  • a configuration can be implemented in which a sensor is placed close to the rear of the air discharge side of a heater core section without a separate additional component by effectively utilizing existing components, and since the sensor is placed close to the air discharge side to measure the temperature, there is an effect in which a deviation between the actual temperature and the measured temperature does not occur or is significantly reduced.
  • FIG. 1 is a perspective view of a vehicle air heating device including a rear cover assembly according to an embodiment of the present invention.
  • Figure 2 is a drawing of the air heating device illustrated in Figure 1 as viewed from the rear (air discharge port side).
  • Figure 3 is a partially exploded perspective view of the air heating device illustrated in Figure 1.
  • Fig. 4 is a partially exploded perspective view of the heater core portion shown in Fig. 3.
  • Figure 5 is an exploded perspective view of a preferred embodiment of a PTC unit applied to the present invention.
  • FIG. 6 is a perspective view of a rear cover assembly coupled to the rear of the heater assembly of the aforementioned vehicle air heating device, viewed from a direction facing the heater assembly.
  • Fig. 7 is an enlarged view of the main part of the present invention, showing the 'A' portion of Fig. 6 in an enlarged manner.
  • Figure 8 is an enlarged view showing a main part of another preferred embodiment of the present invention.
  • Figures 9 and 10 are examples showing preferred arrangements of sensors for the rear portion (the portion where air is discharged) of an air heating device.
  • terms such as “part,” “unit,” and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware, software, or a combination of hardware and software.
  • FIG. 1 is a perspective view of an air heating device for a vehicle including a rear cover assembly according to an embodiment of the present invention
  • FIG. 2 is a view of the air heating device illustrated in FIG. 1 as viewed from the rear (air discharge port side)
  • FIG. 3 is a partially exploded perspective view of the air heating device illustrated in FIG. 1
  • FIG. 4 is a partially exploded perspective view of the heater core portion illustrated in FIG. 3.
  • the air heating device (1) is a device for heating air for heating the interior of a vehicle, and includes a heater assembly (10) including a plurality of PTC units (13), a heat dissipation fin (14), and a control element, and a rear cover assembly (20) coupled to the rear of the heater assembly (10), i.e., the air discharge port side, and having a detection element for detecting the state of the heater assembly (10), for example, the temperature.
  • the heater assembly (10) includes a heater core part (12) and a frame part (16).
  • the heater core part (12) has a plurality of PTC units (13) and a heat dissipation fin (14) arranged one by one between adjacent PTC units (13), and the frame part (16) accommodates and protects the heater core part (12), and may be composed of a pair of side frames (160L, 160R) and a lower holder (162) that interconnects the lower portions of the pair of side frames (160L, 160R) and has a mounting groove (163) corresponding to each of the PTC units (13).
  • the PTC unit (13) constituting the heater core part (12) may have a rod-shaped configuration with a length extending in the vertical direction and a rectangular cross-section, as shown in the drawing.
  • the PTC units (13) may be arranged side by side in the left-right direction in the drawing so that their relatively wide flat side surfaces face each other at a distance from each other, and the heat dissipation fins (14) may be arranged between the PTC units (13) facing each other at a distance from each other.
  • Each PTC unit (13) may be configured to have electrode plates arranged in a sandwich structure centered on an insulating frame (131) in which multiple PTC elements are mounted, and then placed in a heating tube (139) and sealed at both ends with a heat-resistant material (see FIG. 5 below), and the heat dissipation fin (14) may be configured to have a passage through which air passes while one side and the other side of the opposite side are in contact with the PTC units (13) arranged on both sides.
  • the drawing symbols 15L and 15R indicate fin plates installed to be in contact with the outer surface of the outermost radiating fin (14) among the plurality of radiating fins (14) constituting the heater core part (12).
  • one of the two fin plates (15L and 15R) may be a grounding plate that is electrically connected to a vehicle body or the like to implement grounding.
  • the heater assembly (10) may also include a control unit (18).
  • the control unit (18) is coupled to the upper portion of the frame unit (16) that accommodates the aforementioned heater core unit (12) therein, as shown in the examples of the drawings (FIGS. 1 to 3), and by mounting the aforementioned control elements therein, power can be supplied or cut off to the PTC units (13) constituting the heater core unit (12), and the amount of heat generated can be controlled through current control.
  • the control unit (18) may include a housing (180) that is coupled to the upper portion of the frame unit (16) that accommodates the heater core unit (12) inside and has a mounting space formed inside. At this time, a board (not shown) that mounts a plurality of bus bars (184) that electrically connect electrode terminals of each PTC unit (13) and a control element that is electrically connected to the bus bars (184) and controls the heating of the PTC units (13) simultaneously or individually may be mounted inside the housing (180).
  • heat is generated in each PTC unit (13) at the same time as power is supplied to the control unit (18), and the generated heat is transferred to the heat dissipation fin (14).
  • a blower (not shown) is driven to force air to pass through the heat dissipation fin (14)
  • the temperature of the air increases due to the heat exchange action between the air passing through the heat dissipation fin (14) and the heat dissipation fin (14) that receives heat from the PTC unit (13) and is maintained at a high temperature, so that it can be supplied as warm air to indoor demand locations (driver's seat, passenger seat, rear seat, etc.).
  • the control unit (18) can also control the heat generation level of the PTC unit (13) according to the ambient temperature or usage environment.
  • a dedicated program for PWM (Pulse Width Modulation) control can be input to the control unit (18).
  • PWM (Pulse Width Modulation) control is one form of efficient switch control, and refers to control that changes the duty ratio according to the size of the input signal (DC level).
  • Figure 5 is an exploded perspective view of a preferred embodiment of a PTC unit applied to the present invention.
  • each of the PTC units (13) constituting the heater core portion (12) may be composed of a heating element (130) and a heating tube (139) sealingly accommodating the heating element (130).
  • the heating element (130) may be composed of an insulating frame (131), a plurality of PTC elements (134, 135), electrode plates (136 to 138), a pair of insulating covers (c1, c2), etc.
  • the heating tube (139) may be composed of a non-conductive metal body having a square cross-section and a hollow tubular shape, such as aluminum.
  • a plurality of first element receiving holes (132) and second element receiving holes (133) may be formed in the insulating frame (131).
  • a first PTC element (134) and a second PTC element (135) may be mounted in each of the first element receiving holes (132) and the second element receiving holes (133) of the insulating frame (131), and a first electrode plate (136) may be arranged to simultaneously contact one surface of the first PTC elements (134), and a second electrode plate (137) may be arranged to simultaneously contact one surface of the second PTC elements (135).
  • the electrode plates also include a common electrode plate (138).
  • the common electrode plate (138) can be positioned opposite the first electrode plate (136) and the second electrode plate (137) with the insulating frame (131) in the middle. More specifically, the common electrode plate (138) can be positioned to simultaneously contact the other side of the first PTC elements (134) (the side opposite the side contacting the first electrode plate) and the other side of the second PTC elements (135) (the side opposite the side contacting the second electrode plate).
  • the heating element (130) is formed by mounting an insulating frame (131) with PTC elements (134, 135) and attaching electrode plates in a sandwich structure on both sides of the insulating frame (131) so as to be in contact with the PTC elements, and connecting a pair of insulating covers (c1, c2) to surround them on one side and the other side thereof.
  • the heating element (130) formed in this manner is placed in a heating tube (139) and sealed at both ends with a heat-resistant material, thereby completing one PTC unit (13).
  • the reference numerals 136-1, 137-1, and 138-1 indicate terminals extending from each electrode plate and protruding to the outside of the heating tube (139).
  • these terminals are electrically connected to the bus bar (184) of the aforementioned control unit (18), current for generating heat can be supplied to each of the PTC elements simultaneously or individually.
  • the PTC unit (13) of this configuration although the first PTC element (134) and the second PTC element (135) are mounted together in one insulating frame (131), heat generation is controlled by region (region to which the first PTC elements belong and region to which the second PTC elements belong) by power supplied independently through different electrode plates (first electrode plate and second electrode plate), so that more efficient and precise temperature control can be performed.
  • the region-specific heat generation control can also be implemented by changing the number of the first and second PTC elements (134, 135) in addition to the form exemplified in Fig. 5 (for example, configuring the first PTC element with four elements and the second PTC element with two elements, etc.) or by using PTC elements with different capacities (heat generation amounts) in each region. Therefore, it should be clearly stated that such modified examples can also be included in the scope of the present invention.
  • FIG. 6 is a perspective view of a rear cover assembly coupled to the rear of a heater assembly of the aforementioned vehicle air heating device, viewed from a direction facing the heater assembly
  • FIG. 7 is an enlarged view of a main part of the present invention, showing an enlarged portion 'A' of FIG. 6.
  • the rear cover assembly (20) is coupled to the air outlet side of the aforementioned heater assembly (10) including PTC units (13) and heat dissipation fins (14), and may be composed of a cover portion (22) forming a sensor mounting portion (226), and a sensor portion (24) mounted on the sensor mounting portion (226) to detect the flow rate of air passing through the heater assembly (10) or the temperature of the air.
  • the cover part (22) may be configured to have a plurality of openings (23) of the same or different sizes partitioned by a plurality of connecting members (222), and to form the sensor mounting part (226) on the side facing the rear of the heater assembly (10).
  • the sensor mounting part (226) may be configured with a sensor mounting hole (227) formed in the connecting member (222) at a specific position, and a cable installation groove (228) formed along the connecting member (222) and connected to the sensor mounting hole (227).
  • the sensor unit (24) may be composed of a plurality of sensors (240), a sensor cable (244) connected to each of the sensors (240), and a harness connector (not shown), which is an integrated terminal unit electrically connected to a connector (246) on the control unit (18) side to supply power applied to the sensors (240) through each sensor cable (244) or to output a signal detected by the sensor (240) to the control unit (18).
  • the sensor (240) is preferably a temperature sensor, but may also be an airflow sensor.
  • the sensor (240) constituting the sensor section (24) can be mounted and fixed in a sensor mounting hole (227) formed in the connecting member (222) at a specific location, and the sensor cable (244) connected to the sensor (240) is guided to the outside of the cover section (22) in a structure in which it is embedded in the cable installation groove (228) formed along the connecting member (222), and then collected in one harness connector (not shown), through which it can be electrically connected to the control section (18) of the heater assembly (10) described above.
  • the cover part (22) of the rear cover assembly (20) may preferably be composed of a pair of side plates (220) spaced apart from each other by a distance, and a connecting member (222) including at least two horizontal members (223) interconnecting the side plates (220).
  • the connecting member (222) may be composed of at least two horizontal members (223) and a plurality of vertical members (224) interconnecting the horizontal members (223) in a form orthogonal to the horizontal members (223).
  • the connecting member (222) may also further include a plurality of bridges (225) connecting two adjacent vertical members (224), in which case a sensor mounting hole (227) in which a sensor (240) is mounted is formed in the bridge (225), and a cable installation groove (228) is formed in some of the horizontal members (223) and vertical members (224) among the horizontal members (223) and vertical members (224), so that the sensor cable (244) can be guided to the outside of the cover part (22) along the cable installation groove (228) in a structure in which it is embedded in the cable installation groove (228).
  • the vertical member (224) may be formed at a position corresponding to one of the plurality of PTC units (13) while having a width (W1) that is equal to or similar to the thickness (T1) of the PTC unit (13), so as to overlap with the PTC unit (13) at the corresponding position when the air heating device is viewed from the rear (air discharge port side) (see FIG. 3). Accordingly, the horizontal member (223) does not obstruct the flow of air passing through the heat dissipation fin (14), so that air flow can be maintained smoothly.
  • a cable detachment prevention member (229) may be formed in the form of a protrusion to prevent the sensor cable (244) installed in the form of being buried along the groove from being detached due to external impact or the like (see Fig. 7).
  • the cable detachment prevention member (229) in the form of a protrusion may be formed at even intervals along the cable installation groove (228) or may be formed at uneven intervals.
  • the sensor (240) mounted and fixed in the sensor mounting hole (227) is preferably a temperature sensor as mentioned above, but may also be an air flow sensor. Since overheating of the air heating device according to the embodiment of the present invention is mainly caused by a mechanical defect or control error of the blower, information on the air flow rate passing through the heat dissipation fin (14) is also important information for predicting overheating.
  • a configuration may be configured to simultaneously mount a temperature sensor (240-1) and an air flow sensor (240-2) in one sensor mounting hole (227) so that the air heating device and its surrounding parts are more safely protected from overheating.
  • reference numeral 221 denotes a fastening means for firmly fastening the rear cover assembly (20) to the designated fastening position of the heater assembly (10) when assembling the device so that they can be mutually fixed.
  • the fastening means (221) may be a hook-shaped hook, and a fastening hole (omitted) to which the hook-shaped hook is fastened may be formed along the outer edge of the pair of side frames (160L, 160R) described above.
  • FIGS. 9 and 10 are exemplary drawings showing a preferred arrangement of a sensor for the rear part (the part where air is discharged) of an air heating device.
  • a sensor mounting hole (227) may be formed so that one sensor is positioned correspondingly at the center of each divided heating region (see FIG. 9).
  • the sensor mounting holes (227) may be formed so that one sensor is positioned corresponding to the central position of the boundary between the separated heating areas as in Fig. 10.
  • the number of sensors is reduced compared to the embodiment of Fig. 9 in which the sensors are positioned at the center of each heating area, cost reduction is possible, while efficient temperature control and overheating prediction for each area are possible.
  • the heating-controlled area is not limited to being divided into a number (such as 2, 4, or 6) as exemplified in Fig. 9 or Fig. 10.
  • the heating area may be divided into an odd number of areas, such as 3, 5, or 7, and even in this case, it is preferable to configure the sensor mounting holes so that one sensor is positioned corresponding to the center of each divided heating area or one sensor is positioned corresponding to the center of the boundary between the heating areas.
  • Air heating device 10 Heater assembly
  • Heating element 131 Insulating frame
  • Cable release prevention device 240 Sensor

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un ensemble couvercle arrière d'un dispositif de chauffage d'air pour un véhicule et un dispositif de chauffage d'air pour un véhicule le comprenant. L'ensemble couvercle arrière d'un dispositif de chauffage d'air, selon la présente invention, est couplé à un côté orifice d'évacuation d'air d'un ensemble de chauffage comprenant des unités PTC et des ailettes de dissipation de chaleur. L'ensemble couvercle arrière d'un dispositif de chauffage d'air comprend : une partie couvercle qui a une pluralité de parties de trou traversant ayant la même taille ou des tailles différentes et divisée par une pluralité d'éléments de connexion, et a une partie de montage de capteur formée sur un côté faisant face à une partie de surface arrière de l'ensemble de chauffage à travers laquelle de l'air est déchargé ; et une partie de capteur qui est montée sur la partie de montage de capteur de façon à détecter le débit d'air ou la température de l'air traversant l'ensemble de chauffage, la partie de montage de capteur comprenant un trou de montage de capteur formé dans l'élément de connexion à une position spécifique et une rainure d'installation de câble formée le long de l'élément de connexion et connectée au trou de montage de capteur, un capteur constituant la partie de capteur étant monté et fixé au trou de montage de capteur, et un câble de capteur connecté au capteur étant guidé vers l'extérieur de la partie de couvercle le long de la rainure d'installation de câble et étant connecté électriquement à une unité de commande de l'ensemble de chauffage.
PCT/KR2024/005929 2023-06-01 2024-05-02 Ensemble couvercle arrière de dispositif de chauffage d'air pour véhicule et dispositif de chauffage d'air pour véhicule le comprenant Pending WO2024248345A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480024422.4A CN120936503A (zh) 2023-06-01 2024-05-02 车辆用空气加热装置的后盖组件及包含该组件的车辆用空气加热装置

Applications Claiming Priority (2)

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KR10-2023-0070768 2023-06-01
KR1020230070768A KR102852819B1 (ko) 2023-06-01 2023-06-01 차량용 공기가열장치의 후면 커버 조립체 및 이를 포함하는 차량용 공기가열장치

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WO2024248345A1 true WO2024248345A1 (fr) 2024-12-05

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Country Link
KR (1) KR102852819B1 (fr)
CN (1) CN120936503A (fr)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054313A1 (fr) * 1999-04-26 2000-11-22 Valeo Klimasysteme GmbH Capteur de température
KR101913121B1 (ko) * 2016-01-28 2018-10-31 자화전자(주) 독립제어 피티씨히터 및 장치
CN113635730A (zh) * 2021-07-21 2021-11-12 博格华纳排放系统（宁波）有限公司 新能源汽车用空气加热器
US20220080807A1 (en) * 2019-05-27 2022-03-17 Valeo Systemes Thermiques Electric radiator for a motor vehicle provided with a temperature measurement device
US20220402334A1 (en) * 2019-11-27 2022-12-22 Valeo Systemes Thermiques Electric radiator with temperature measurement device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102442176B1 (ko) 2020-03-27 2022-09-08 대우전자부품(주) Ptc 히터의 결합 구조
KR102162411B1 (ko) * 2020-07-01 2020-10-06 주식회사 유디 블럭 히터 모듈
KR20230039152A (ko) * 2021-09-14 2023-03-21 자화전자(주) 피티씨 어셈블리 및 이를 포함하는 피티씨 히터

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054313A1 (fr) * 1999-04-26 2000-11-22 Valeo Klimasysteme GmbH Capteur de température
KR101913121B1 (ko) * 2016-01-28 2018-10-31 자화전자(주) 독립제어 피티씨히터 및 장치
US20220080807A1 (en) * 2019-05-27 2022-03-17 Valeo Systemes Thermiques Electric radiator for a motor vehicle provided with a temperature measurement device
US20220402334A1 (en) * 2019-11-27 2022-12-22 Valeo Systemes Thermiques Electric radiator with temperature measurement device
CN113635730A (zh) * 2021-07-21 2021-11-12 博格华纳排放系统（宁波）有限公司 新能源汽车用空气加热器

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KR102852819B1 (ko) 2025-08-29
CN120936503A (zh) 2025-11-11
KR20240172450A (ko) 2024-12-10

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