CN109466275B - Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle - Google Patents
Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle Download PDFInfo
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- CN109466275B CN109466275B CN201811385428.7A CN201811385428A CN109466275B CN 109466275 B CN109466275 B CN 109466275B CN 201811385428 A CN201811385428 A CN 201811385428A CN 109466275 B CN109466275 B CN 109466275B
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- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 230000017525 heat dissipation Effects 0.000 claims abstract description 58
- 238000005192 partition Methods 0.000 claims description 18
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
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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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00514—Details of air conditioning housings
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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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/00614—Cooling of electronic units in air stream
Abstract
The application relates to the field of air conditioners, in particular to a vehicle-mounted overhead air conditioner, a cooling method of an electric control cavity of the vehicle-mounted overhead air conditioner and a vehicle. The vehicle-mounted overhead air conditioner comprises a chassis and a shell, an indoor heat exchange cavity, an electric control cavity and an outdoor heat exchange cavity are formed in the chassis and the shell, the vehicle-mounted overhead air conditioner further comprises a heat dissipation fan and a heat dissipation channel formed in the chassis, the electric control cavity is respectively communicated with the indoor and the outdoor through the heat dissipation channel, and the heat dissipation fan is used for guiding indoor air to enter the electric control cavity through the heat dissipation channel. The air conditioner chassis is independently provided with the heat dissipation channel and the heat dissipation fan is additionally arranged, so that indoor normal-temperature air is introduced into the electric control cavity, the purpose of cooling the heating element in the electric control cavity is achieved, the air is introduced into the electric control cavity, the problem that cold air is easy to condense in the electric control cavity can be avoided, negative pressure is formed in the automobile after the air in the automobile enters the electric control cavity, and air outside the automobile can enter the automobile through a gap of the automobile body, so that the purpose of automatically introducing fresh air is achieved.
Description
Technical Field
The application relates to the field of air conditioners, in particular to a vehicle-mounted overhead air conditioner, a cooling method of an electric control cavity of the vehicle-mounted overhead air conditioner and a vehicle provided with the vehicle-mounted overhead air conditioner.
Background
Various heating elements such as a frequency converter, a DC-DC converter and the like are concentrated in an electric control cavity of the vehicle-mounted air conditioner, the heating elements cannot bear high temperature, and the heating elements are easy to burn out in a high-temperature environment. In addition, the temperature of the electric control cavity is up to 50-60 ℃ when the electric control cavity is exposed to the sun, and the module is difficult to dissipate heat during refrigeration operation, so that module protection can often occur, and the refrigeration effect is affected. The current common method for solving the problem is to directly discharge the heat of the electric control cavity into the air, namely, a plurality of ventilation holes are formed in two sides of the electric control cavity, the heat dissipation purpose is achieved by using a fan to strengthen the heat convection between the electric control cavity and the outside air, but in hot summer, the temperature of the outside air is still higher, the cooling effect is limited, the electric control cavity and the outside air circulate, and accumulated water or dust is easily introduced in the moist weather or in the weather environment with a plurality of haze, so that the electric safety is seriously influenced. In another solution, low-temperature gas in the low-temperature cavity is introduced to cool, and cold air enters the electric control cavity to cool more quickly, so that the temperature difference in the electric control cavity is increased instantaneously, condensation is easy to generate in the electric control cavity, and quality hidden trouble exists; meanwhile, more cold energy is lost, and the comfort in the bus is influenced.
In addition, the existing bus air conditioner introduces fresh air into the vehicle through a fixed air port, is limited by a space layout structure, and is not capable of directly opening a connecting pipeline on the roof of the vehicle like a household air conditioner because an air valve is added to introduce outdoor air when a client needs a fresh air function.
Therefore, a specific solution to the heat dissipation problem of the electric control cavity is necessary, and the automatic fresh air guiding function can be realized.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, so as to solve the heat dissipation problem of the electric control cavity and simultaneously realize the automatic fresh air introducing function, the application provides the following solution.
In order to achieve the above object, according to one aspect of the present technology, the present technology provides a vehicle-mounted overhead air conditioner.
According to the vehicle-mounted overhead air conditioner, the vehicle-mounted overhead air conditioner comprises a chassis and a shell, an indoor heat exchange cavity, an electric control cavity and an outdoor heat exchange cavity are formed in the chassis and the shell, the vehicle-mounted overhead air conditioner further comprises a heat dissipation fan and a heat dissipation channel formed in the chassis, the electric control cavity is respectively communicated with the indoor and the outdoor through the heat dissipation channel, and the heat dissipation fan is used for guiding indoor air to enter the electric control cavity through the heat dissipation channel.
Further, the inlet of the heat dissipation channel is communicated with the air return opening of the indoor heat exchange cavity.
Further, the chassis comprises a bottom plate and a partition plate integrally formed with the bottom plate, the electric control cavity is separated from the indoor heat exchange cavity and the outdoor heat exchange cavity through the partition plate, and the heat dissipation channels are distributed in the bottom plate or in the bottom plate and the partition plate.
Further, an outlet of the heat dissipation channel is arranged on one side of the baffle plate between the electric control cavity and the indoor heat exchange cavity, which faces the electric control cavity.
Further, the exhaust channel further comprises an exhaust channel arranged on the chassis, and the electric control cavity is communicated with the outside through the exhaust channel.
Further, an inlet of the exhaust channel is arranged on one side of a baffle plate between the electric control cavity and the outdoor heat exchange cavity, which faces the electric control cavity.
Further, an air return opening and an air supply opening are formed in the indoor heat exchange cavity, an evaporator and an evaporation fan are arranged in the indoor heat exchange cavity, the evaporation fan is used for guiding indoor air to enter the indoor heat exchange cavity through the air return opening and then penetrate through the evaporator, and finally the indoor air is discharged into the room through the air supply opening.
Further, a heat exchange air inlet and a heat exchange air outlet are formed in the outdoor heat exchange cavity, a condenser and a condensing fan are arranged in the outdoor heat exchange cavity, the condensing fan is used for guiding outdoor air to enter the outdoor heat exchange cavity from the heat exchange air inlet and then pass through the condenser, and finally, the outdoor air is discharged to the outside from the heat exchange air outlet.
Further, the heat dissipation fan is arranged at the inlet of the heat dissipation channel.
In order to achieve the above object, according to a second aspect of the present technology, the present technology further provides a cooling method for an electric control cavity of a vehicle-mounted overhead air conditioner, which is used for cooling an electrical component in the electric control cavity of the vehicle-mounted overhead air conditioner.
According to the embodiment of the application, the cooling method for the electric control cavity of the vehicle-mounted overhead air conditioner comprises the following steps:
indoor air is accessed;
delivering indoor air into an electric control cavity provided with an electric element;
and discharging the air after radiating the electric control cavity to the outside.
Further, the indoor air is indoor return air.
In order to achieve the above object, according to a third aspect of the present invention, there is also provided a vehicle.
According to the vehicle, the vehicle comprises the vehicle-mounted overhead air conditioner.
The vehicle-mounted overhead air conditioner and the vehicle provided by the technical scheme are characterized in that a heat dissipation channel is independently arranged on the chassis of the air conditioner, and a heat dissipation fan is additionally arranged, so that indoor normal-temperature air is introduced into the electric control cavity, the purpose of cooling heating elements in the electric control cavity is achieved, the problem that cold air is easy to condense in the electric control cavity can be avoided when the air is introduced into the vehicle, negative pressure is formed in the vehicle after the air in the vehicle enters the electric control cavity, and the air outside the vehicle can enter the vehicle through a gap of the vehicle body, so that the purpose of automatically introducing fresh air is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:
FIG. 1 schematically shows a top view of the internal structure of a vehicle-mounted overhead air conditioner of the present application;
FIG. 2 is a schematic cross-sectional view showing the internal structure of the vehicle-mounted overhead air conditioner of the present application; and
fig. 3 schematically shows a cross-sectional view of the chassis of the vehicle-mounted overhead air conditioner and a circuit diagram of the air flow direction in the heat dissipation channel in the present application.
In the figure:
1. a chassis; 101. a bottom plate; 102. a partition plate; 103. a heat dissipation channel; 104. an exhaust passage; 2. an indoor heat exchange cavity; 3. an electric control cavity; 4. an outdoor heat exchange cavity; 5. a heat radiation fan; 6. an air return port; 7. an evaporator; 8. an evaporation fan; 9. a condenser; 10. and a condensing fan.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "comprising" and "having," and any variations thereof, in the description and claims of the present application and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.
In the present application, the terms "upper", "lower", "inner", "middle", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to fig. 1-3 in conjunction with examples.
Example 1
As shown in fig. 1-3, an embodiment of the present application provides a vehicle-mounted overhead air conditioner. The vehicle-mounted overhead air conditioner is used for being installed on the top of a vehicle, and the vehicle is particularly the top of the vehicle. The vehicle-mounted overhead air conditioner is used for reducing the temperature in the vehicle so as to ensure that the temperature in the vehicle is proper and improve the comfort level during use. Of course, the vehicle-mounted overhead air conditioner of the application can be particularly used for tops of buses, motor homes, buses and train carriages.
As shown in fig. 1-3, the vehicle-mounted overhead air conditioner comprises a chassis 1 and a shell (not shown in the figure), wherein an indoor heat exchange cavity 2, an electric control cavity 3 and an outdoor heat exchange cavity 4 are formed in the chassis 1 and the shell. Wherein, air return 6 and supply-air outlet (not shown in the figure) have been seted up on the indoor heat transfer chamber 2, and indoor heat transfer chamber 2 is inside to be provided with evaporimeter 7 and evaporation fan 8, and evaporation fan 8 is used for guiding indoor air to pass evaporimeter 7 after entering indoor heat transfer chamber 2 by air return 6, finally is discharged indoor by the supply-air outlet. The outdoor heat exchange cavity 4 is provided with a heat exchange air inlet (not shown in the figure) and a heat exchange air outlet (not shown in the figure), the inside of the outdoor heat exchange cavity 4 is provided with a condenser 9 and a condensing fan 10, the condensing fan 10 is used for guiding outdoor air to enter the outdoor heat exchange cavity 4 from the heat exchange air inlet, then pass through the condenser 9, and finally be discharged outdoors from the heat exchange air outlet. The refrigerant compressed by the compressor circularly flows in the structures of the condenser, the evaporator, the compressor and the connector pipeline, thereby realizing heat exchange and finally achieving the aim of regulating the indoor temperature.
It should be noted that, when the in-vehicle air conditioner is used for a vehicle, the term "indoor" in this specification should be understood as the vehicle interior, and the term "outdoor" should be understood as the vehicle exterior.
Various heating elements such as a frequency converter, a DC-DC converter and the like are concentrated in an electric control cavity 3 of the vehicle-mounted air conditioner, the heating elements cannot bear high temperature, and the heating elements are easy to burn out in a high-temperature environment. In addition, the temperature of the electric control cavity 3 is up to 50-60 ℃ when the outside is exposed to the sun, and the electric control cavity 3 is difficult to dissipate heat during refrigeration operation, so that module protection can often occur, and the refrigeration effect is affected. In the prior art, a plurality of ventilation holes are formed in two sides of the electric control cavity 3, the heat dissipation purpose is achieved by using a fan to strengthen the convection heat exchange with the outside air, the cooling effect is limited, accumulated water or dust is easily introduced into the electric control cavity 3, and the electric safety use is seriously affected. In order to solve this problem, the vehicle-mounted overhead air conditioner of the present embodiment further includes a heat dissipation fan 5 and a heat dissipation channel 103, wherein the heat dissipation channel 103 is opened on the chassis 1, the electric control chamber 3 is communicated with the room through the heat dissipation channel, and the heat dissipation fan 5 is used for guiding the room air to enter the electric control chamber 3 through the heat dissipation channel, and the specific air flow direction is shown by arrows in fig. 2 and 3.
In the above embodiment, the cooling channel 103 is independently arranged on the chassis 1 of the air conditioner, and the cooling fan 5 is added to introduce indoor normal-temperature air into the electric control cavity 3, so that the purpose of cooling the heating element in the electric control cavity 3 is achieved. Firstly, the normal-temperature air in the vehicle is introduced into the electric control cavity 3, the temperature of the normal-temperature air is obviously lower than that of the air outside, the normal-temperature air has a more obvious cooling effect compared with the outdoor air, and the problem that cold air introduced into a low-temperature cavity in the prior art is easy to condense when entering the electric control cavity for cooling can be solved; in the second aspect, because the air flows from the interior of the vehicle to the exterior of the vehicle after passing through the electric control cavity 3, the external air cannot directly flow into the electric control cavity 3, so that moisture and dust in the outdoor air can be prevented from entering the electric control cavity 3 and accumulating, and the safe use of electricity is ensured; in the third aspect, the air in the vehicle enters the electric control cavity 3 to form negative pressure in the vehicle, and the air outside the vehicle enters the vehicle through a gap of the vehicle body, so that the purpose of automatically introducing fresh air is achieved.
As shown in the figure, the chassis 1 of the indoor heat exchange cavity 2 is provided with the air return 6, preferably, the inlet of the heat dissipation channel 103 is arranged at the air return 6, namely, the inlet of the heat dissipation channel 103 is communicated with the air return 6 of the indoor heat exchange cavity, and since the air return 6 is one part of the structure of the vehicle-mounted overhead air conditioner which is directly communicated with the indoor space, and is used for introducing indoor normal-temperature air to pass through the evaporator 7 for cooling, the inlet of the heat dissipation channel is arranged at the air return 6, so that sufficient indoor normal-temperature air can be obtained.
In some embodiments, as shown in fig. 1-3, the chassis 1 includes a base plate 101 and a partition plate 102 integrally formed with the base plate 101, and the electric control chamber 3 is separated from the indoor heat exchange chamber 1 and the outdoor heat exchange chamber 2 by the partition plate 102, respectively. Specifically, the heat dissipation channels 103 may be distributed only in the bottom plate 101, or as shown in fig. 2 and 3, the heat dissipation channels 103 may be distributed in both the bottom plate 101 and the partition 102.
Preferably, as shown in fig. 2 and 3, the vehicle-mounted overhead air conditioner further comprises an exhaust channel 104, and the electric control cavity 3 is communicated with the outside through the exhaust channel 104. Specifically, the exhaust channels 104 may be distributed only in the bottom plate 101, or as shown in fig. 2 and 3, the exhaust channels 104 may be distributed in the bottom plate 101 and the partition 102 at the same time, and the exhaust channels 104 may be directly replaced by a plurality of ventilation holes formed on two sides of the exhaust channels in order to solve the heat dissipation problem of the electric control chamber 3 in the prior art.
Preferably, the inlet of the heat dissipation channel 103 is arranged at the air return opening 6, the outlet of the heat dissipation channel 103 is arranged on the partition plate 102 between the electric control cavity 3 and the indoor heat exchange cavity 2, and the partition plate 102 faces one side of the electric control cavity 3. The inlet of the exhaust channel 104 is arranged on the partition plate 102 between the electric control chamber 3 and the outdoor heat exchange chamber 4, and is one side of the partition plate 102 facing the electric control chamber 3. The above-mentioned setting mode of heat dissipation passageway 103 and exhaust passage 104 can make full use of chassis 1's shape structural feature, and the processing of being convenient for to the port setting of heat dissipation passageway 103 and exhaust passage 104 is on the baffle, and the circulation of convenient air improves the heat exchange in the automatically controlled chamber 3.
In this embodiment of the present application, the setting position of the heat dissipation fan 5 is not specifically limited, and may be the inlet, the outlet or the electric control chamber 3 of the heat dissipation channel, so long as the effect of correctly guiding the air to flow in the heat dissipation channel is achieved, for example, in fig. 2 provided in this application, the heat dissipation fan 5 is installed on the partition 102 and is located at the outlet of the heat dissipation channel 103, and of course, according to the actual needs, the heat dissipation fan may also be considered to perform multiple settings at multiple positions, so as to improve the heat dissipation performance.
It should be noted that, various structures shown in the drawings of the present application are schematic, and are used for explaining a specific implementation principle of induced air heat dissipation to an electric control cavity in a vehicle-mounted overhead air conditioner, and should not be understood as a full true display of the structures thereof, for example, specific trend and dimensions of a heat dissipation channel in the present application, and those skilled in the art may make reasonable changes with reference to the structures and principles in the drawings.
It should be noted that other configurations and operations of the vehicle-mounted overhead air conditioner in the present application are known to those skilled in the art, and for example, the compressor, the gas-liquid separator, the refrigerant pipeline, the housing, etc. may refer to related structures in the prior art, and will not be described in detail herein.
Example 2
The embodiment provides a cooling method for an electric control cavity of a vehicle-mounted overhead air conditioner, which is used for cooling an electric element in the electric control cavity of the vehicle-mounted overhead air conditioner in embodiment 1, and specifically comprises the following steps: accessing indoor air; and conveying indoor air into an electric control cavity provided with an electric element, and discharging the air which dissipates heat in the electric control cavity to the outside. For a specific implementation structure, refer to embodiment 1. Specifically, the indoor air is indoor return air, so that indoor normal-temperature air can be conveniently introduced.
The above cooling method needs to be completed by relying on the vehicle-mounted overhead air conditioner disclosed in embodiment 1, so that the cooling method of the electric control cavity of the vehicle-mounted overhead air conditioner also has all the technical effects of embodiment 1, and will not be described in detail herein.
Example 3
In addition, the application also discloses a vehicle, comprising a vehicle body and the vehicle-mounted overhead air conditioner in the embodiment 1. The vehicle-mounted overhead air conditioner is arranged at the top of the vehicle body. The vehicle of this application realizes the regulation of inside temperature through on-vehicle overhead air conditioner, satisfies the user demand. Since the vehicle-mounted overhead air conditioner is the vehicle-mounted overhead air conditioner disclosed in embodiment 1, the vehicle with the vehicle-mounted overhead air conditioner also has all the technical effects of embodiment 1, and will not be described in detail herein. The vehicle according to the above embodiment may further include other necessary components or structures, and the corresponding arrangement positions and connection relationships may refer to the vehicle structures in the prior art, and the connection relationships, operation and operation principles of the structures not described herein will be known to those skilled in the art and will not be described in detail herein.
In this specification, some embodiments are described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are enough to refer to each other.
The foregoing is merely exemplary of embodiments of the present invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The vehicle-mounted overhead air conditioner comprises a chassis (1) and a shell, wherein an indoor heat exchange cavity (2), an electric control cavity (3) and an outdoor heat exchange cavity (4) are formed in the chassis (1) and the shell, the indoor heat exchange cavity (2) and the outdoor heat exchange cavity (4) are respectively arranged on two opposite sides of the electric control cavity (3), and the vehicle-mounted overhead air conditioner is characterized by further comprising a heat dissipation fan (5), a heat dissipation channel (103) and an exhaust channel (104) which are arranged on the chassis (1), the electric control cavity (3) is communicated with the indoor through the heat dissipation channel (103), the electric control cavity (3) is communicated with the outdoor through the exhaust channel (104), and the heat dissipation fan (5) is used for guiding indoor air to enter the electric control cavity (3) through the heat dissipation channel (103);
an inlet of the heat dissipation channel (103) is communicated with a return air inlet (6) of the indoor heat exchange cavity (2);
the chassis (1) comprises a bottom plate (101) and a partition plate (102) integrally formed with the bottom plate (101), the electric control cavity (3) is separated from the indoor heat exchange cavity (2) and the outdoor heat exchange cavity (4) through the partition plate (102), and the heat dissipation channels (103) are distributed in the bottom plate (101) or in the bottom plate (101) and the partition plate (102);
an outlet of the heat dissipation channel (103) is formed in one side, facing the electric control cavity (3), of a partition plate (102) between the electric control cavity (3) and the indoor heat exchange cavity (2); an inlet of the exhaust channel (104) is formed in one side, facing the electric control cavity (3), of a partition plate (102) between the electric control cavity (3) and the outdoor heat exchange cavity (4).
2. The vehicle-mounted overhead air conditioner according to claim 1, wherein the indoor heat exchange cavity (2) is provided with an air return opening (6) and an air supply opening, an evaporator (7) and an evaporation fan (8) are arranged inside the indoor heat exchange cavity (2), and the evaporation fan (8) is used for guiding indoor air to enter the indoor heat exchange cavity (2) through the air return opening (6) and then pass through the evaporator (7), and finally is discharged into a room through the air supply opening.
3. The vehicle-mounted overhead air conditioner according to claim 1, wherein the outdoor heat exchange cavity (4) is provided with a heat exchange air inlet and a heat exchange air outlet, a condenser (9) and a condensing fan (10) are arranged inside the outdoor heat exchange cavity (4), and the condensing fan (10) is used for guiding outdoor air to enter the outdoor heat exchange cavity (4) from the heat exchange air inlet, pass through the condenser (9) and finally be discharged outdoors from the heat exchange air outlet.
4. The vehicle-mounted overhead air conditioner according to claim 1, wherein the heat radiation fan (5) is arranged at an inlet of the heat radiation channel.
5. A method of cooling an electric control chamber of a vehicle-mounted overhead air conditioner as recited in any one of claims 1-4, comprising:
indoor air is accessed;
delivering indoor air into an electric control cavity provided with an electric element;
and discharging the air after radiating the electric control cavity to the outside.
6. The method for cooling an electric control chamber of a vehicle-mounted overhead air conditioner according to claim 5, wherein the access indoor air is access indoor return air.
7. A vehicle comprising the vehicle-mounted overhead air conditioner of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385428.7A CN109466275B (en) | 2018-11-20 | 2018-11-20 | Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811385428.7A CN109466275B (en) | 2018-11-20 | 2018-11-20 | Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle |
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| CN109466275A CN109466275A (en) | 2019-03-15 |
| CN109466275B true CN109466275B (en) | 2024-02-09 |
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| CN112193019B (en) * | 2020-10-22 | 2021-12-07 | 珠海格力电器股份有限公司 | Positioning structure, packaging structure and mounting method of vehicle-mounted air conditioner |
| CN113085474B (en) * | 2021-03-24 | 2022-10-28 | 青岛海尔空调器有限总公司 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
| CN114383214A (en) * | 2021-12-20 | 2022-04-22 | 珠海格力电器股份有限公司 | Auxiliary heat dissipation structure, air conditioner and control method |
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| JPH11235922A (en) * | 1998-02-20 | 1999-08-31 | Denso Corp | Roof setting type air conditioner for bus |
| CN104228521A (en) * | 2014-08-28 | 2014-12-24 | 上海加冷松芝汽车空调股份有限公司 | Light-weight and energy-saving upwind type set-top air conditioner of passenger car |
| CN104296408A (en) * | 2014-10-16 | 2015-01-21 | 山东华盛强移动制冷技术有限公司 | Fully overhead type energy-saving motor-driven passenger car air conditioner |
| CN107940609A (en) * | 2017-11-06 | 2018-04-20 | 珠海格力电器股份有限公司 | A kind of radiating subassembly, air-conditioning system and the control method of air conditioner electric control case |
| CN209552864U (en) * | 2018-11-20 | 2019-10-29 | 珠海格力电器股份有限公司 | Vehicular top-mounted air conditioner and vehicle |
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