Semi-overhead air conditioner

Abstract

The utility model discloses a semi-overhead air conditioner, which comprises a bottom plate, a heat exchanger, an air inlet pipe, an air outlet pipe, an air inlet pipe and an air outlet pipe, the outdoor heat dissipation assembly is used for dissipating heat and comprises an outdoor heat exchanger and a heat dissipation fan; a refrigerant is arranged in the main pipeline; and the cooling assembly is used for refrigerating and heating the battery box. The thermal management system has the beneficial effects that thermal management of the interior of the passenger cabin of the vehicle and the battery box is realized, the occupied space is small, the integration degree is high, full functionalization of the thermal management system of the semi-overhead air-conditioning passenger cabin and the thermal management of the battery is realized, and the thermal management requirement of the whole vehicle is met.

Description

Technical Field

[0001] This utility model relates to the field of vehicle air conditioning technology, specifically to a semi-roof-mounted air conditioner. Background Technology

[0002] Currently, traditional roof-mounted air conditioners occupy roof space and affect the vehicle's center of gravity, while under-mounted air conditioners are limited by their cooling efficiency. Semi-roof-mounted air conditioners, due to their smaller size, utilization of roof space for heat dissipation, and reduced air duct length, are more efficient than under-mounted air conditioners and are favored by minibuses. However, existing semi-roof-mounted air conditioners occupy a significant amount of space and lack battery-powered cooling and heating capabilities. There is an urgent need for a more integrated semi-roof-mounted air conditioner. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a semi-roof-mounted air conditioner that can achieve both in-vehicle cooling and heating as well as battery box cooling and heating, with a high degree of integration and good performance.

[0004] Specifically, this utility model discloses a semi-top-mounted air conditioner, comprising:

[0005] The base plate is installed on the top of the vehicle, on which the compressor and heat exchanger are mounted;

[0006] Outdoor heat dissipation components, used for heat dissipation, including outdoor heat exchangers and cooling fans;

[0007] The main pipe contains refrigerant.

[0008] Cooling components are used to cool or heat the battery box.

[0009] The advantages of adopting the above technical solution are that it realizes thermal management of the vehicle's passenger compartment and battery box, occupies little space, has a high degree of integration, realizes full-function system of semi-roof-mounted air-conditioned passenger compartment thermal management and battery thermal management, and meets the thermal management requirements of the whole vehicle.

[0010] Furthermore, the cooling assembly includes a water pump, an expansion tank, and liquid piping, wherein the water pump is connected to the expansion tank and the liquid piping, and the liquid piping is connected to the battery box.

[0011] The advantage of adopting the above technical solution is that by setting up water pumps and liquid pipelines, the battery box can be cooled and heated, and the thermal management of the battery box can be combined with the air conditioning in the cabin, thus reducing space occupation.

[0012] Furthermore, the liquid pipeline is connected to the heat exchanger for heat exchange, and a PTC liquid heater is also provided on the liquid pipeline.

[0013] The advantage of adopting the above technical solution is that the liquid pipeline exchanges heat with the heat exchanger to achieve the cooling or heating function, and at the same time, a PTC liquid heater is set up to play a role in rapid heating, so as to achieve rapid heating in cold weather.

[0014] Furthermore, the main pipeline is also equipped with a dry liquid storage tank, an evaporator, an electronic expansion valve, and a gas-liquid separator.

[0015] The advantages of adopting the above technical solution are that the evaporator is installed indoors and plays a role in cooling and heating, the dryer receiver plays a role in drying the refrigerant and preventing ice blockage in the pipeline, the expansion valve plays a role in throttling and reducing pressure, and the pressure relief valve has the function of monitoring pressure.

[0016] Furthermore, the heat exchanger is a plate heat exchanger, which is connected to the main pipeline via a branch pipeline.

[0017] The advantages of adopting the above technical solution are that plate heat exchangers have the advantages of high heat transfer coefficient, compact structure, and space saving.

[0018] Furthermore, the liquid pipeline is equipped with a valve core and an outlet water temperature sensor, with the valve core located on both sides of the outdoor heat exchanger.

[0019] The advantage of adopting the above technical solution is that the valve core plays a role in preventing backflow, and at the same time, a water outlet temperature sensor is set to sense the temperature in the cooling pipe after heat exchange, so as to realize temperature monitoring.

[0020] Furthermore, the main pipeline is equipped with a high-pressure liquid outlet pipe and a low-pressure gas return pipe. The high-pressure liquid outlet pipe and the low-pressure gas return pipe are connected to the evaporator, which is installed inside the vehicle.

[0021] The advantage of adopting the above technical solution is that the high-pressure liquid flowing out of the high-pressure outlet pipe enters the evaporator to evaporate, taking away the indoor heat. After vaporization, it is returned to the air through the low-pressure return pipe, thus achieving cooling in the cabin.

[0022] Furthermore, the main pipeline is equipped with a low-pressure sensor, a high-pressure sensor, and a return gas temperature sensor.

[0023] The advantage of adopting the above technical solution is that the low-pressure sensor and the high-pressure sensor are used to detect the pressure in the main pipeline and prevent the pressure in the pipeline from being too high.

[0024] Furthermore, the base plate is provided with an installation chamber, an ATS heat sink is provided in the installation chamber, and a cooling fan is installed on the top of the chamber.

[0025] The advantage of adopting the above technical solution is that the ATS radiator is set up to dissipate heat from the vehicle motor, so that the air conditioning system integrates motor heat treatment.

[0026] Furthermore, the base plate is provided with a pad, and symmetrical support plates are provided on the upper side of the pad. An elastic pad is provided between the support plate and the pad, and the support plate is fixed to the compressor.

[0027] The advantage of adopting the above technical solution is that the pad and support plate are used to fix the compressor and at the same time reduce compressor vibration. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0029] Figure 1 This is a schematic diagram of the overall structure of the semi-top air conditioner of this utility model.

[0030] Figure 2 This is a front cross-sectional view of the semi-top-mounted air conditioner of this utility model.

[0031] Figure 3 This is a diagram of the installation structure of a semi-roof-mounted air conditioner compressor.

[0032] Figure 4 This is a diagram of the ductwork connection for a semi-roofed air conditioner.

[0033] The reference numerals used in the attached figures are as follows:

[0034] Base plate 1; Pad plate 11; Support plate 12; Elastic pad 13; Compressor 2; Outdoor heat exchanger 3; Radiator core 31; Condensing temperature sensor 32; Sight glass 33; Cooling fan 4; Main pipe 5; Dryer receiver 51; Evaporator 52; Electronic expansion valve 53; Gas-liquid separator 54; Pressure relief valve 55; High-pressure outlet pipe 56; Low-pressure return pipe 57; Low-pressure sensor 58; High-pressure sensor 59; Return gas temperature sensor 591; Battery box 6; Water pump 7; Expansion tank 71; Liquid pipeline 72; PTC liquid heater 73; Valve core 74; Outlet water temperature sensor 75; Mounting chamber 8; Heat exchanger 9; Auxiliary electronic expansion valve 91; Plate heat exchanger outlet pipe 92; Plate heat exchanger inlet pipe 93. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] like Figure 1-4 As shown, this utility model discloses a semi-top-mounted air conditioner, characterized in that it includes:

[0037] The base plate 1 is installed on the top of the vehicle, on which the compressor 2 and the heat exchanger 9 are mounted;

[0038] An outdoor heat dissipation component for heat dissipation, including an outdoor heat exchanger 3 and a cooling fan 4;

[0039] Main pipe 5 contains refrigerant;

[0040] Cooling components are used to cool and heat the battery box 6.

[0041] The advantages of adopting the above technical solution are that it realizes thermal management of the vehicle cabin and battery box 6, occupies little space, has a high degree of integration, realizes full-function system of semi-roof air-conditioned cabin thermal management and battery thermal management, and meets the thermal management requirements of the whole vehicle.

[0042] Furthermore, the cooling assembly includes: a water pump 7, an expansion tank 71, and a liquid pipeline 72. The water pump 7 is connected to the expansion tank 71 and the liquid pipeline 72, and the liquid pipeline 72 is connected to the battery box 6.

[0043] Furthermore, the liquid pipeline 72 is connected to the heat exchanger 9 for heat exchange, and a PTC liquid heater 73 is also installed on the liquid pipeline 72.

[0044] Furthermore, a valve core 74 and an outlet water temperature sensor 75 are installed on the liquid pipeline 72, with the valve core 74 located on both sides of the outdoor heat exchanger 3.

[0045] Along the liquid outlet direction of the liquid pipeline 72, the following components are installed sequentially: valve core 74, outlet water temperature sensor 75, expansion tank 71, water pump 7, battery box 6, and PTC liquid heater 73. The expansion tank 71 has an inlet and an outlet pipe, both connected to the liquid pipeline 72. The expansion tank 71 contains cooling water, which is delivered to the battery box 6 to cool the battery. After cooling, the water flows back into the heat exchanger 9 for circulating heat exchange, thus achieving the cooling function of the battery box 6. The valve core 74 prevents backflow. The outlet water temperature sensor 75 is also installed to sense the temperature within the cooling pipeline after heat exchange, enabling temperature monitoring.

[0046] In some implementations, the main pipeline 5 is also equipped with a dryer receiver 51, an evaporator 52, an electronic expansion valve 53, a gas-liquid separator 54, and a pressure relief valve 55. The heat exchanger 9 is a plate heat exchanger, connected to the main pipeline 5 via a branch pipe. The heat exchanger 9 and the evaporator 52 are connected in parallel. The heat exchanger 9 manages the thermal management of the battery box 6 through heat exchange, while the evaporator 52 manages the thermal management of the vehicle's passenger compartment. An electronic expansion valve 91 is installed on the connecting pipe of the heat exchanger 9. Simultaneously, the heat exchanger 9 has a plate heat exchanger outlet pipe 92 and a plate heat exchanger inlet pipe 93 connected to the liquid pipeline 72, allowing the liquid pipeline 72 to exchange heat with the main pipeline 5.

[0047] Furthermore, the main pipe 5 is equipped with a high-pressure liquid outlet pipe 56 and a low-pressure return gas pipe 57. The high-pressure liquid outlet pipe 56 and the low-pressure return gas pipe 57 are connected to the evaporator 52. The evaporator 52 is installed inside the vehicle and is equipped with an evaporator 52 shell. A fan is installed inside the shell to supply air to the passenger cabin. At the same time, there can be multiple evaporators 52, which are connected in parallel and installed inside the vehicle to achieve rapid and uniform cooling and heating of the passenger cabin inside the vehicle.

[0048] Furthermore, the main pipeline 5 is equipped with a low-pressure sensor 58, a high-pressure sensor 59, and a return gas temperature sensor 591. Along the direction of refrigerant flow, the main pipeline 5 is equipped with an outdoor heat exchanger 3 (equivalent to a condenser), a condensing temperature sensor 32, a dryer receiver 51, a sight glass 33, an electronic expansion valve 53, an evaporator 52, a low-pressure sensor 58, a return gas temperature sensor 591, a vacuum valve core seat, a gas-liquid separator 54, a compressor 2, a pressure relief valve 55, and a high-pressure sensor 59, realizing the circulation of the entire main pipeline. It has multiple pressure and temperature sensors to detect the pressure and temperature inside the pipeline. At the same time, when the pressure is too high, the pressure relief valve 55 releases pressure to prevent the pressure inside the pipeline from becoming too high and ensure safe use.

[0049] In some implementations, the base plate 1 is provided with an installation chamber 8, which is fixedly mounted by a housing. An ATS radiator is installed inside the installation chamber 8, and a cooling fan 4 is mounted on the top of the chamber. The outdoor heat exchanger 3 has a radiator core 31 and a radiator housing. The radiator housing is fixed to the base plate 1 and communicates with the interior of the installation chamber 8, thus accelerating heat dissipation. The ATS heat exchanger is connected to heat exchange pipes that connect to the liquid cooling system of the vehicle motor. The structure and working principle of the liquid cooling system are existing technologies and will not be described here. This system provides heat exchange for the vehicle motor, achieving integrated thermal management of the vehicle cabin, motor, and battery box 6. An electrical control junction box is also installed on the base plate 1 for convenient wiring.

[0050] Furthermore, the base plate 1 is provided with a pad 11, which is locked and fixed to the base plate 1. Symmetrical support plates 12 are provided on the upper side of the pad 11. An elastic pad 13 is provided between the support plate 12 and the pad 11. The support plate 12 and the pad 11 are connected by studs. The elastic pad 13 is fitted onto the studs as a whole. It can be made of plastic or other materials to provide support. At the same time, when installing different compressors 2, elastic pads 13 of different heights are used to facilitate installation. The support plate 12 is provided with a bending part, which is locked and fixed to the mounting seat of the compressor 2 by screws, so that the compressor 2 has a certain buffer and prevents damage during vehicle operation.

[0051] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A semi-roof-mounted air conditioner, characterized in that, include: A base plate (1) is installed on the top of the vehicle, on which a compressor (2) and a heat exchanger (9) are mounted; An outdoor heat dissipation component for heat dissipation includes an outdoor heat exchanger (3) and a cooling fan (4); Main pipe (5), containing refrigerant; Cooling components are used to cool and heat the battery box (6).

2. The semi-top-mounted air conditioner according to claim 1, characterized in that, The cooling assembly includes a water pump (7), an expansion tank (71), and a liquid pipeline (72). The water pump (7) is connected to the expansion tank (71) and the liquid pipeline (72), and the liquid pipeline (72) is connected to the battery box (6).

3. The semi-roof-mounted air conditioner according to claim 2, characterized in that, The liquid pipeline (72) is connected to the heat exchanger (3) for heat exchange, and a PTC liquid heater (73) is also provided on the liquid pipeline (72).

4. The semi-roof-mounted air conditioner according to claim 1, characterized in that, The main pipeline (5) is also equipped with a dry liquid storage tank (51), an evaporator (52), an electronic expansion valve (53), a gas-liquid separator (54), and a pressure relief valve (55).

5. The semi-roof-mounted air conditioner according to claim 1, characterized in that, The heat exchanger (9) is a plate heat exchanger, which is connected to the main pipeline (5) through a branch pipeline.

6. The semi-roof-mounted air conditioner according to claim 3, characterized in that, The liquid pipeline (72) is equipped with a valve core (74) and an outlet water temperature sensor (75), and the valve core (74) is located on both sides of the outdoor heat exchanger (3).

7. The semi-roof-mounted air conditioner according to claim 4, characterized in that, The main pipeline (5) is equipped with a high-pressure liquid outlet pipe (56) and a low-pressure gas return pipe (57). The high-pressure liquid outlet pipe (56) and the low-pressure gas return pipe (57) are connected to the evaporator (52), which is installed inside the vehicle.

8. The semi-roof-mounted air conditioner according to claim 1, characterized in that, The main pipeline (5) is equipped with a low-pressure sensor (58), a high-pressure sensor (59), and a return gas temperature sensor (591).

9. The semi-top-mounted air conditioner according to claim 4, characterized in that, The base plate (1) is provided with an installation chamber (8), and an ATS heat sink is provided in the installation chamber (8). The cooling fan (4) is installed on the top of the chamber.

10. The semi-roof-mounted air conditioner according to claim 1, characterized in that, The base plate (1) is provided with a pad (11), and a symmetrical support plate (12) is provided on the upper side of the pad (11). An elastic pad (13) is provided between the support plate (12) and the pad (11), and the support plate (12) is fixed to the compressor (2).

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