Vehicle air conditioner condensate water utilization device and vehicle

By designing a vehicle air conditioning condensate utilization device, the condensate is used for heat dissipation of the motor control system and battery pack, water addition to the glass washer, and spray cooling, thus solving the problem of condensate waste and improving the vehicle's heat dissipation efficiency and range.

CN224224870UActive Publication Date: 2026-05-12HUNAN CSR TIMES ELECTRIC VEHICLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN CSR TIMES ELECTRIC VEHICLE
Filing Date
2025-06-09
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, the condensate from vehicle air conditioners is not effectively utilized, resulting in resource waste. At the same time, vehicles require additional water sources for glass washing and battery pack cooling in high-temperature environments, causing unnecessary resource waste and increased operating costs.

Method used

Design a vehicle air conditioning condensate utilization device to collect condensate into a water tank and distribute it to the motor control system, the battery pack's water cooling device, the glass washer, and the spray cooling unit through a four-way reversing valve, realizing multiple uses of condensate, including heat dissipation for the motor control system and battery pack, automatic water filling for the glass washer, and spray cooling.

Benefits of technology

It achieves efficient utilization of condensate, improves vehicle heat dissipation efficiency, reduces resource waste, and ensures normal vehicle operation. In particular, it extends the driving range in high-temperature environments and optimizes the distribution of condensate through the cooperation of sensors and valves.

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Abstract

The utility model provides a vehicle air conditioner condensate water utilization device and a vehicle, the device comprises a first water storage tank, a four-way reversing valve, a system cooling loop, a battery cooling loop, a water cooling heat dissipation device and a water adding unit, condensate water generated by refrigeration of a vehicle-mounted air conditioner is collected to the first water storage tank and is divided into three parts through the four-way reversing valve, wherein the two parts respectively pass through the system cooling loop and the battery cooling loop to cool a motor electric control system and a battery pack, which need to be cooled, of the vehicle after passing through the water-cooling heat dissipation device, and the rest part is used for adding water to a glass washer of the vehicle; the vehicle is provided with the device, so that condensate water generated by air conditioner refrigeration is reasonably utilized, resource waste is avoided, and devices, needing heat dissipation, of the vehicle are cooled.
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Description

Technical Field

[0001] This utility model belongs to the field of vehicle device technology, specifically relating to a vehicle air conditioning condensate utilization device and a vehicle. Background Technology

[0002] In hot weather, vehicles require air conditioning for cooling, which produces a large amount of condensate. Currently, this condensate is mainly discharged directly outside the vehicle through open drain pipes, resulting in resource waste. Furthermore, the vehicle's windshield washer requires water to operate, necessitating manual replenishment periodically. Simultaneously, to ensure the normal operation of the vehicle's battery pack and motor / control system in high ambient temperatures, these components need cooling. Water, with its high specific heat capacity, can absorb a large amount of heat without rapidly heating up, making it a suitable temperature regulation medium. Therefore, a device could be designed to collect the condensate generated by the vehicle's air conditioning system during high temperatures and use it for automatic replenishment of components such as the windshield washer and for absorbing heat from the battery pack or motor / control system, thereby maintaining the vehicle's normal operation. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a vehicle air conditioning condensate utilization device and vehicle, so as to make full and effective use of air conditioning condensate.

[0004] The vehicle air conditioning condensate utilization device provided by this utility model includes an air conditioner, a battery pack, a motor control system, and a glass washer; it also includes: a first water storage tank, a four-way reversing valve, a system cooling circuit, a battery cooling circuit, a water-cooled heat dissipation device, and a water filling unit;

[0005] The condensate outlet of the air conditioner is connected to the inlet of the first water storage tank, and the outlet of the first water storage tank is connected to the first port of the four-way reversing valve.

[0006] The second port of the four-way reversing valve is connected to the system cooling circuit, and the system cooling circuit is connected to the water-cooled heat dissipation device; the water-cooled heat dissipation device is located on the outside of the motor control system.

[0007] The third port of the four-way reversing valve is connected to the battery cooling circuit, the battery cooling circuit is connected to the water-cooled heat exchanger, and at least part of the battery cooling circuit is a cooling passage, which is located on the outside of the battery pack.

[0008] The fourth port of the four-way reversing valve is connected to the water supply unit, and the water supply unit is connected to the glass washer.

[0009] This device collects the condensate produced by the vehicle's air conditioning system into the first water tank, and then divides it into three parts through a four-way reversing valve. Two of these parts are then cooled by a water-cooling device for the vehicle's motor, electronic control system, and battery pack, while the remaining part is used to add water to the vehicle's windshield washer fluid.

[0010] Furthermore, the vehicle air conditioning condensate utilization device provided by this utility model also includes a spray cooling unit. The spray cooling unit includes a pressure sensing valve, an atomizing device, and a liquid collector. The first water storage tank is connected to the atomizing device through the pressure sensing valve. The nozzle of the atomizing device is arranged corresponding to the water cooling heat dissipation device. The liquid collector is arranged below the nozzle along the direction of water mist spraying.

[0011] When the pressure in the first water tank is too high, the pressure sensing valve opens to prevent backflow caused by excessive water accumulation. At the same time, the spray cooling unit sprays water to cool the water-cooled heat dissipation device. The liquid collector collects excess liquid droplets and discharges them to the ground to prevent water vapor from entering the vehicle's motor, battery, and controller components and causing safety accidents.

[0012] Furthermore, the water supply unit includes a fourth water storage tank, a one-way throttle valve, and a first overflow valve. The inlet of the fourth water storage tank is connected to the fourth port through the one-way throttle valve, and the outlet of the fourth water storage tank is connected to the water tank inlet of the glass washer. The first overflow valve is located at the bottom of the fourth water storage tank and is connected to the inside of the tank.

[0013] Furthermore, the first water storage tank includes a first liquid level sensor and a first pressure sensor. The first liquid level sensor is disposed at the top inside the first water storage tank, and the first pressure sensor is disposed at the bottom inside the first water storage tank.

[0014] Furthermore, the system cooling circuit includes a second water tank, which includes a second liquid level sensor and a second pressure sensor. The second liquid level sensor is located at the top inside the second water tank, and the second pressure sensor is located at the bottom inside the second water tank.

[0015] Furthermore, the battery cooling circuit includes a third water tank, which includes a third liquid level sensor and a third pressure sensor. The third liquid level sensor is located at the top inside the third water tank, and the third pressure sensor is located at the bottom inside the third water tank.

[0016] The level and pressure sensors in the first, second, and third water tanks indicate the water volume in each tank for further regulation.

[0017] Furthermore, the second, third, and / or fourth ports of the four-way directional valve are connected to a one-way throttle valve. The one-way throttle valve prevents backflow of water in the tank.

[0018] Furthermore, a filter assembly is installed at the inlet of the first water storage tank. The filter assembly filters impurities in the condensate, preventing pipe blockage or damage to valves and other accessories.

[0019] Furthermore, the first water storage tank includes an exhaust pipe and a second overflow valve; the exhaust pipe is located at the top of the first water storage tank and communicates with the inside of the tank.

[0020] The second overflow valve is located at the bottom of the first water storage tank and is connected to the inside of the tank.

[0021] When the pressure in the first water tank is too high, the excess condensate is directly drained through the second overflow valve.

[0022] Another aspect of this utility model provides a vehicle equipped with the aforementioned vehicle air conditioning condensate utilization device, wherein the motor control system is connected to the four-way reversing valve, the atomizing device, the first overflow valve, the first liquid level sensor, the first pressure sensor, the second liquid level sensor, the second pressure sensor, the third liquid level sensor, the third pressure sensor, and the second overflow valve.

[0023] This utility model has the following beneficial effects:

[0024] 1) The vehicle air conditioning condensate utilization device provided by this utility model effectively collects condensate. Part of it is used for heat dissipation of the vehicle motor control system and battery pack through the water cooling heat dissipation device, part of it is used for automatic water filling of the glass washer, and another part of the water is directly sprayed around the water cooling heat dissipation device to cool the water cooling heat dissipation device, increase the heat dissipation efficiency of the system, make reasonable use of condensate, avoid waste of resources, meet the cooling needs of the vehicle's heat dissipation devices, and at the same time ensure the normal working temperature of the vehicle battery pack, thereby improving the vehicle's driving range.

[0025] 2) The vehicle air conditioning condensate utilization device provided by this utility model uses a liquid level sensor and a pressure sensor to transmit the liquid level of each water tank to the vehicle's motor and electronic control system. Based on the water level and water pressure, the device uses valves installed on the pipeline to regulate the condensate, thereby achieving optimal utilization of the condensate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a vehicle air conditioning condensate utilization device provided in some embodiments of this utility model.

[0027] Figure 2This is a schematic diagram of the first water storage tank provided in some embodiments of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 01 Air conditioner, 02 Battery pack, 03 Motor and electronic control system, 04 Glass washer

[0030] 100 First water storage tank,

[0031] 110 First liquid level sensor,

[0032] 120 First pressure sensor,

[0033] 130 filter components,

[0034] 140 exhaust pipe,

[0035] 150 Second relief valve,

[0036] 200 four-way directional valve

[0037] K1 is the first port, K2 is the second port, K3 is the third port, and K4 is the fourth port.

[0038] 300 system cooling circuit,

[0039] 310 Second water storage tank,

[0040] 320 First Water Pump

[0041] 400 battery cooling circuit,

[0042] 410 Third water storage tank,

[0043] 420 cooling path,

[0044] 430 Second water pump,

[0045] 500 water-cooled heat dissipation device,

[0046] 600 water supply units,

[0047] 610 Fourth Water Storage Tank

[0048] 620 First relief valve,

[0049] 700 spray cooling unit,

[0050] 710 pressure sensing valve,

[0051] 720 atomizing device,

[0052] 730 liquid collector,

[0053] 800 check valve. Detailed Implementation

[0054] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0055] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediary element present. Conversely, when an element is said to be "directly on" another element, there is no intermediary element. The terms "inner," "outer," and similar expressions used herein are for illustrative purposes only and do not indicate the only possible implementation. Furthermore, if the embodiments of this utility model involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] like Figure 1 As shown, the vehicle itself is equipped with an air conditioner 01, a battery pack 02, a motor and electronic control system 03, and a glass washer 04. The vehicle air conditioner condensate utilization device provided by this utility model includes a first water storage tank 100, a four-way reversing valve 200, a system cooling circuit 300, a battery cooling circuit 400, a water-cooled heat dissipation device 500, and a water filling unit 600; wherein, the condensate outlet of the air conditioner 01 is connected to the inlet of the first water storage tank 100, as shown... Figure 2 As shown, the inlet of the first water storage tank 100 is equipped with a filter assembly 130, which filters impurities in the condensate to prevent pipe blockage or damage to valves and other accessories. The first water storage tank 100 includes an exhaust pipe 140 and a second overflow valve 150; the exhaust pipe is located at the top of the first water storage tank 100 and communicates with the inside of the tank; the second overflow valve is located at the bottom of the first water storage tank 100 and communicates with the inside of the tank. When the pressure in the first water storage tank is too high, excess condensate is directly discharged through the second overflow valve.

[0058] The outlet of the first water storage tank 100 is connected to the first port K1 of the four-way reversing valve 200; the second port K2 of the four-way reversing valve 200 is connected to the system cooling circuit 300, and the system cooling circuit 300 is connected to the water-cooled heat dissipation device 500; the water-cooled heat dissipation device 500 is located outside the motor control system 03; the third port K3 of the four-way reversing valve 200 is connected to the battery cooling circuit 400, and the battery cooling circuit 400 is connected to the water-cooled heat exchanger; at least part of the battery cooling circuit 400 is a cooling passage 420, and the cooling passage 420 is located outside the battery pack 02; the fourth port K4 of the four-way reversing valve 200 is connected to the water filling unit 600, and the water filling unit 600 is connected to the glass washer 04.

[0059] In one embodiment, such as Figure 2 As shown, the first water storage tank 100 includes a first liquid level sensor 110 and a first pressure sensor 120. The first liquid level sensor 110 is located at the top inner side of the first water storage tank 100, and the first pressure sensor 120 is located at the bottom inner side of the first water storage tank 100. The system cooling circuit 300 includes a second water storage tank 310, which includes a second liquid level sensor and a second pressure sensor. The second liquid level sensor is located at the top inner side of the second water storage tank 310, and the second pressure sensor is located at the bottom inner side of the second water storage tank 310. The battery cooling circuit 400 includes a third water storage tank 410, which includes a third liquid level sensor and a third pressure sensor. The third liquid level sensor is located at the top inner side of the third water storage tank 410, and the third pressure sensor is located at the bottom inner side of the third water storage tank 410. The water supply unit 600 includes a fourth water storage tank 610, a one-way throttle valve, and a first overflow valve 620. The inlet of the fourth water storage tank 610 is connected to a fourth port K4 via the one-way throttle valve, and the outlet of the fourth water storage tank 610 is connected to the water tank inlet of the glass washer 04. The first overflow valve 620 is located at the bottom of the fourth water storage tank 610 and is connected to the inside of the tank. Level sensors and pressure sensors in the first, second, and third water storage tanks indicate the water volume in each tank, allowing the motor control system 03 to further regulate the condensate in the water storage tanks of this device.

[0060] In a preferred embodiment, the second port K2, the third port K3, and / or the fourth port K4 of the four-way directional valve 200 are connected to the one-way throttle valve 800. The one-way throttle valve prevents backflow of water in the tank.

[0061] This device collects the condensate produced by the vehicle air conditioner 01 into the first water tank, and divides it into three parts through the four-way reversing valve 200. Two of the parts are then cooled by the water cooling device 500 to cool the motor and electronic control system 03 and the battery pack 02 of the vehicle that need to be cooled. The remaining part is used to add water to the vehicle's glass washer 04.

[0062] In a preferred example, such as Figure 1 As shown, the vehicle air conditioning condensate utilization device provided by this utility model also includes a spray cooling unit 700. The spray cooling unit 700 includes a pressure sensing valve 710, an atomizing device 720, and a liquid collector 730. The first water storage tank 100 is connected to the atomizing device 720 through the pressure sensing valve 710. The nozzle of the atomizing device 720 is set corresponding to the water cooling heat dissipation device 500. The liquid collector 730 is set below the nozzle along the direction of water mist spraying. When the pressure of the first water storage tank 100 is too high, the pressure sensing valve 710 opens to prevent backflow caused by excessive water storage in the first water storage tank 100. At the same time, the spray cooling unit 700 sprays water to cool the water cooling heat dissipation device 500. The liquid collector 730 collects excess liquid droplets and discharges them to the ground to prevent water vapor from entering the vehicle motor, battery, and controller components and causing safety accidents.

[0063] Another aspect of this utility model provides a vehicle equipped with the aforementioned vehicle air conditioning condensate utilization device, wherein the motor control system 03 is connected to the four-way reversing valve 200, the atomizing device 720, the first overflow valve 620, the first liquid level sensor 110, the first pressure sensor 120, the second liquid level sensor, the second pressure sensor, the third liquid level sensor, the third pressure sensor, and the second overflow valve.

[0064] The specific control process of this device is as follows: When the temperature is high, the air conditioner 01 on the vehicle is turned on, and the condensate produced by the air conditioner 01 flows into the first water tank 100. When the motor control system detects the pressure values ​​P1, P2, P3 and the liquid level percentages C1, C2, C3 of each water tank through the liquid level sensors and pressure sensors installed in the first water tank 100, the second water tank 310, and the third water tank 410, when the first water tank 100 is full of condensate, the pressure sensor will reach the set value P0. If C1 > 0.3, the first port K1 opens; if C2 < 0.6, the second port K2 opens; if C3 < 0.6, the third port K3 opens; if C4 < 0.6, the fourth port K4 opens. When C2 > 0.95, the second port K2 closes; if C3 > 0.95, the third port K3 closes; if C4 > 0.95, the third port K3 closes. Then the fourth port K4 is closed; in summer when the humidity is high, the amount of condensate is very considerable. When the second water tank 310 and the third water tank 410 are full of condensate, the liquid level in the first water tank 100 will increase rapidly. When the first water tank 100 is full of condensate, the pressure sensor will reach the set value P0. If C1>0.95, if P1>P0, then the third port K3 is closed and the pressure sensing valve is opened. The condensate in the first water tank 100 is sprayed onto the water-cooled heat dissipation device 500 through the nozzle of the atomizing device. The cooling fan draws in the surrounding low-temperature water vapor into the condenser, heat exchanger and radiator of the water-cooled heat dissipation device 500 to dissipate heat from these devices. The liquid collector 730 installed at the rear end of the radiator absorbs the sprayed water vapor to prevent water vapor from entering the motor, battery and controller and causing safety accidents.

[0065] When the temperature T4 of the temperature sensor in the second water storage tank 310 is lower than the temperature T1 of the sensor in the motor control system 03, the first water pump 320 starts to work. A temperature sensor is installed in the third water storage tank 410. When the temperature T3 is lower than the temperature T2 of the sensor in the battery pack 020, the second water pump 430 starts to work. The two sets of heat dissipation devices can dissipate heat simultaneously or independently.

[0066] The present invention provides a detailed description of a vehicle air conditioning condensate utilization device and a vehicle. Specific examples have been used to illustrate the principle and implementation of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A vehicle air conditioning condensate utilization device, the vehicle including an air conditioner (01), a battery pack (02), a motor control system (03), and a glass washer (04), characterized in that, Also includes: The system includes a first water storage tank (100), a four-way reversing valve (200), a system cooling circuit (300), a battery cooling circuit (400), a water-cooled heat dissipation device (500), and a water filling unit (600). The condensate outlet of the air conditioner (01) is connected to the inlet of the first water storage tank (100), and the outlet of the first water storage tank (100) is connected to the first port (K1) of the four-way reversing valve (200). The second port (K2) of the four-way reversing valve (200) is connected to the system cooling circuit (300), and the system cooling circuit (300) is connected to the water-cooled heat dissipation device (500); the water-cooled heat dissipation device (500) is located outside the motor control system (03); The third port (K3) of the four-way reversing valve (200) is connected to the battery cooling circuit (400), the battery cooling circuit (400) is connected to the water-cooled heat exchanger, and at least part of the battery cooling circuit (400) is a cooling passage (420), the cooling passage (420) is located outside the battery pack (02); The fourth port (K4) of the four-way reversing valve (200) is connected to the water supply unit (600), and the water supply unit (600) is connected to the glass washer (04).

2. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, It also includes a spray cooling unit (700), which includes a pressure sensing valve (710), an atomizing device (720), and a liquid collector (730). The first water storage tank (100) is connected to the atomizing device (720) through the pressure sensing valve (710). The nozzle of the atomizing device (720) is set corresponding to the water cooling heat dissipation device (500). The liquid collector (730) is set below the nozzle along the direction of water mist spraying.

3. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, The water supply unit (600) includes a fourth water storage tank (610) and a first overflow valve (620). The inlet of the fourth water storage tank (610) is connected to the fourth port (K4), and the outlet of the fourth water storage tank (610) is connected to the water tank inlet of the glass washer (04). The first overflow valve (620) is located at the bottom of the fourth water storage tank (610) and is connected to the inside of the tank.

4. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, The first water storage tank (100) includes a first liquid level sensor (110) and a first pressure sensor (120). The first liquid level sensor (110) is located on the top inner side of the first water storage tank (100), and the first pressure sensor (120) is located on the bottom inner side of the first water storage tank (100).

5. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, The system cooling circuit (300) includes a second water tank (310), which includes a second liquid level sensor and a second pressure sensor. The second liquid level sensor is located at the top inside the tank of the second water tank (310), and the second pressure sensor is located at the bottom inside the tank of the second water tank (310).

6. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, The battery cooling circuit (400) includes a third water tank (410), which includes a third liquid level sensor and a third pressure sensor. The third liquid level sensor is located at the top inside the third water tank (410), and the third pressure sensor is located at the bottom inside the third water tank (410).

7. The vehicle air conditioning condensate recovery device as described in claim 1, characterized in that, The second port (K2), third port (K3) and / or fourth port (K4) of the four-way reversing valve (200) are connected to the one-way throttle valve (800).

8. The vehicle air conditioning condensate recovery device as described in any one of claims 1-7, characterized in that, The inlet of the first water storage tank (100) is equipped with a filter assembly (130).

9. The vehicle air conditioning condensate recovery device as described in claim 8, characterized in that, The first water storage tank (100) includes an exhaust pipe (140) and a second overflow valve (150); The exhaust pipe is located at the top of the first water storage tank (100) and communicates with the inside of the tank. The second overflow valve is located at the bottom of the first water storage tank (100) and is connected to the inside of the tank.

10. A vehicle, characterized in that, The vehicle air conditioning condensate utilization device is provided as described in any one of claims 1-9.