Passenger near body cooling device

Abstract

The utility model relates to a passenger near-body cooling device, which is characterized in that exhaust gas of a miniature direct-current variable-frequency compressor is connected with return gas through an air-cooled condenser and a first heat stroke of a micro-channel evaporator, and a load is connected with the micro-channel evaporator through a liquid return pipe and a liquid supply pipe; a liquid return valve, a liquid return temperature sensor, a liquid return pressure sensor, a liquid return flowmeter, an electric heater, a buffer tank, an expansion tank, a liquid return dew point temperature sensor, a liquid return booster pump and a liquid return filter are sequentially arranged on the liquid return pipe, and then the liquid return pipe is divided into two paths, the other path is connected with a direct-cooling condenser through a direct-cooling electromagnetic valve, and is connected to the other hot stroke outlet of the micro-channel evaporator through a direct-cooling one-way valve to be connected with a liquid supply pipe; a branch liquid pipe is branched from the liquid return pipe and is connected with the upper end of the water tank, and a conductivity sensor is arranged in the water tank; the load is a seat cushion and / or a back cushion and / or a side baffle which can be wholly or partially filled with water. The device stably and safely cools the near body of the driver and passengers.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration technical field, specifically is a kind of passenger near body cooling device. BACKGROUND

[0002] With the development of armored vehicles, tanks and other ground vehicles to light, high-precision, the space of its driver and passenger is generally designed to be compact, especially in summer, the ambient temperature and internal heating lead to a large temperature rise of the driving space, and the driving operation needs to be equipped with a cooling system. The existing vehicle cooling system is mostly air conditioning, which supplies cold air. Because the air supply space is small, the direct blowing of the driver and passenger affects the comfort. Moreover, in terms of vehicle operation safety, the internal air conditioner should be full return air first. Because the air supply space is small, the space air duct layout is limited, leading to uneven air supply and insufficient cold air. If fresh air is selected, because the vehicle operating environment is mostly outdoor sandy and muddy environment, it is easy to cause blockage of the fresh air filter, condenser and filter element, affecting the safety, service life and refrigeration performance. SUMMARY

[0003] The utility model provides a kind of passenger near body cooling device with simple structure, compact, can stably, safely cool the driver and passenger near body.

[0004] The utility model discloses a kind of passenger near body cooling device, it is characterized in that: the compression refrigeration system includes miniature direct-current variable frequency compressor, miniature direct-current variable frequency compressor exhaust is connected to two ways, one way is sequentially connected to miniature direct-current variable frequency compressor by wind-cooled condenser, liquid accumulator, drying filter, expansion valve, micro-channel evaporator one hot course, the other way is sequentially connected between expansion valve and micro-channel evaporator by bypass solenoid valve, capillary tube;Load is connected to micro-channel evaporator another hot course by return liquid pipe, liquid supply pipe, return liquid pipe is sequentially provided with return liquid valve, return liquid temperature sensor, return liquid pressure sensor, return liquid flowmeter, electric heater, buffer tank, expansion tank, return liquid dew point temperature sensor, return liquid booster pump, return liquid filter after being divided into two ways, one way is connected to the import of micro-channel evaporator another hot course of compression refrigeration system by return liquid solenoid valve, the other way is connected to direct-cooling condenser by direct-cooling solenoid valve, direct-cooling check valve is connected to micro-channel evaporator another hot course export and is connected to liquid supply pipe, liquid supply pipe is sequentially provided with liquid supply flow sensor, liquid supply dew point temperature sensor, liquid supply temperature sensor and liquid supply pressure sensor;The return liquid pipe is connected to one branch liquid pipe between buffer tank, expansion tank, branch liquid pipe is sequentially provided with branch total valve, branch inlet liquid pipe and branch return liquid pipe on branch liquid pipe, branch inlet liquid pipe is sequentially connected to the upper end of water tank by branch inlet liquid valve group, high-low liquid level sensor and electric conductivity sensor are arranged in water tank, the lower end of water tank is connected to branch return liquid pipe, branch return liquid pump and branch return liquid valve group are sequentially arranged on branch return liquid pipe from water tank to outside, water tank is also provided with liquid inlet and liquid outlet;The load is seat cushion and / or back cushion and / or side stop that can be integrally or partially filled with water.

[0005] The branch liquid inlet valve group comprises a branch liquid inlet check valve and / or a branch liquid inlet electromagnetic valve.

[0006] The branch liquid return valve group comprises a branch liquid return check valve and / or a branch liquid return electromagnetic valve.

[0007] The liquid return pipe comprises a plurality of liquid return pipe lines, and a liquid return pipe line valve is arranged on each liquid return pipe line; the liquid supply pipe comprises a plurality of liquid supply pipe lines, and a liquid supply pipe line valve is arranged on each liquid supply pipe line.

[0008] Any liquid return pipe line and any liquid supply pipe line are connected through a straight-through valve.

[0009] The compression refrigeration system can be provided with a plurality of parallelly connected rear micro-flow channel evaporators connected to the same micro-flow channel evaporator, or a plurality of micro-flow channel evaporators.

[0010] The liquid return booster pump is provided in two parallel groups, and each group of liquid return booster pumps comprises a booster valve, a booster pump, a check valve and a booster valve connected in sequence.

[0011] The beneficial effects of the utility model are:

[0012] 1. The load structure is close to the body, and the local or whole or multiple points of the load structure are supplied with cold air through the plurality of liquid return pipe lines of the liquid return pipe and the plurality of liquid supply pipe lines of the liquid supply pipe, so that the instability and comfort influence of traditional air supply refrigeration are effectively avoided.

[0013] 2. The water tank is connected to the branch liquid pipe, the water tank liquid inlet and liquid outlet are used to ensure the stability of the load liquid supply, and the conductivity sensor is arranged in the water tank to control the conductivity of the water tank and the refrigerant liquid in the liquid supply, liquid return and load, so that the cooling performance of the load seat cushion and / or back cushion and / or side block close to the driver and passenger is affected when the conductivity is too high, and the liquid is discharged and the liquid is added again to control when the conductivity is too high.

[0014] 3. Any liquid return pipe line and any liquid supply pipe line are connected through a straight-through valve, so that the liquid return pipe and the liquid supply pipe are directly connected when the cooling demand is not high, and the compressor can be operated at low power consumption; the straight-through connection can be formed when the water tank needs to be emptied. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a principle diagram.

[0016] In the figure: miniature direct-current variable frequency compressor 1, air-cooled condenser 2, condenser fan 3, liquid reservoir 4, drying filter 5, expansion valve 6, micro-channel evaporator 7, bypass solenoid valve 8, capillary tube 9, liquid return pipeline 10, liquid return pipeline valve 11, liquid return pipe 12, liquid return valve 13, liquid return temperature sensor 14, liquid return pressure sensor 15, liquid return flow meter 16, electric heater 17, buffer tank 18, expansion tank 19, liquid return dew point temperature sensor 20, pressure increasing valve 21, liquid return booster pump 22, one-way valve 23, liquid return filter 24, branch liquid pipe 25, branch total valve 26, branch liquid inlet pipe 27, branch liquid inlet one-way valve 28, branch liquid inlet solenoid valve 29, branch liquid return pipe 30, branch liquid return pump 31, branch liquid return one-way valve 32, water tank 33, high and low liquid level sensor 34, conductivity sensor 35, liquid inlet 36, liquid outlet 37, liquid return solenoid valve 38, direct cooling solenoid valve 39, direct cooling condenser 40, direct cooling one-way valve 41, liquid supply pipe 42, liquid supply flow sensor 43, liquid supply dew point temperature sensor 44, liquid supply temperature sensor 45, liquid supply pressure sensor 46, liquid supply pipeline 47, liquid supply pipeline valve 48, straight-through valve 49. DETAILED DESCRIPTION

[0017] Further description is made below in connection with the drawings.

[0018] Figure 1 As shown: a passenger near-body cooling device, comprising a compression refrigeration system and a load, the load adopts a seat cushion and / or a back cushion and / or a side shield which can be filled with water as a whole or partially.

[0019] The compression refrigeration system comprises a miniature direct-current variable frequency compressor 1, the exhaust of the miniature direct-current variable frequency compressor 1 is divided into two paths, one path is connected back to the miniature direct-current variable frequency compressor 1 in turn through an air-cooled condenser 2, a liquid reservoir 4, a drying filter 5, an expansion valve 6, and a micro-channel evaporator 7 in a heating process, and the other path is connected between the expansion valve and the micro-channel evaporator in turn through a bypass solenoid valve 8 and a capillary tube 9.

[0020] The load is connected to the liquid return pipe 12 through the liquid return pipe 10 with the liquid return pipe valve 11. The liquid return pipe 12 is sequentially provided with the liquid return valve 13, the liquid return temperature sensor 14, the liquid return pressure sensor 15, the liquid return flow meter 16, the electric heater 17, the buffer tank 18, the expansion tank 19, the liquid return dew point temperature sensor 20, the pressure increasing valve 21, the liquid return pressure pump 22, the one-way valve 23, the pressure increasing valve, and the liquid return filter 24. The liquid return pipe 12 is divided into two paths after the liquid return filter 24. One path is connected to the micro-channel evaporator 7 of the compression refrigeration system through the liquid return electromagnetic valve 38. The other path is connected to the direct cooling condenser 40 through the direct cooling electromagnetic valve 39, and connected to the micro-channel evaporator 7 through the direct cooling one-way valve 41 and the liquid supply pipe 42. The liquid supply pipe 42 is sequentially provided with the liquid supply flow sensor 43, the liquid supply temperature sensor 45, the liquid supply pressure sensor 46, and the liquid supply dew point temperature sensor 44. The liquid supply pipe 42 is connected to the load through the liquid supply pipe 47 with the liquid supply pipe valve 48. Any liquid return pipe and any liquid supply pipe are connected through the direct valve 49.

[0021] The liquid return pipe is divided into a branch liquid pipe 25 between the buffer tank and the expansion tank. The branch liquid pipe 25 is divided into the branch liquid inlet pipe 27 and the branch liquid return pipe 30 through the branch total valve 26. The branch liquid inlet pipe 27 is provided with two or more parallel paths, and each path is sequentially provided with the branch liquid inlet one-way valve 28 and the branch liquid inlet electromagnetic valve 29 connected to the upper end of the water tank 33. The water tank 33 is provided with the high and low liquid level sensor 34 and the electric conductivity sensor 35. The water tank 33 is also provided with the liquid inlet 36 and the liquid outlet 37. The lower end of the water tank 33 is connected to the branch liquid return pipe 30. The branch liquid return pipe 30 is sequentially provided with the branch liquid return pump 31 and the branch liquid return one-way valve from the water tank outward.

[0022] In this embodiment, the air-cooled condenser 2 and the direct cooling condenser 40 share the condenser fan 3.

[0023] In this embodiment, the compression refrigeration system is provided with multiple micro-channel evaporators. Multiple micro-channel evaporators can also be connected in parallel and connected to the same micro-channel evaporator.

Claims

1. A passenger proximity cooling device comprising a compression refrigeration system, characterized by: The compression refrigeration system comprises a micro direct-current variable frequency compressor, two paths of exhaust gas of the micro direct-current variable frequency compressor, one path of which is connected to the micro direct-current variable frequency compressor in sequence through a wind-cooled condenser, a liquid accumulator, a drying filter, an expansion valve and a micro flow channel evaporator, and the other path of which is connected between the expansion valve and the micro flow channel evaporator through a bypass electromagnetic valve and a capillary tube; a load is connected to another hot process of the micro flow channel evaporator through a liquid return pipe and a liquid supply pipe, the liquid return pipe is provided with a liquid return valve, a liquid return temperature sensor, a liquid return pressure sensor, a liquid return flow meter, an electric heater, a buffer tank, an expansion tank, a liquid return dew point temperature sensor and a liquid return booster pump in sequence, and is provided with a liquid return filter and a liquid return electromagnetic valve, one path of which is connected to the other hot process inlet of the micro flow channel evaporator of the compression refrigeration system, and the other path of which is connected to a direct-cooling condenser and a direct-cooling check valve, and is connected to the other hot process outlet of the micro flow channel evaporator through a liquid supply pipe, the liquid supply pipe is provided with a liquid supply flow sensor, a liquid supply dew point temperature sensor, a liquid supply temperature sensor and a liquid supply pressure sensor in sequence; the liquid return pipe is branched into a branch liquid pipe between the buffer tank and the expansion tank, the branch liquid pipe is branched into a branch liquid inlet pipe and a branch liquid return pipe through a branch total valve, the branch liquid inlet pipe is connected to an upper end of a water tank through a branch liquid inlet valve group, the water tank is provided with a high-low liquid level sensor and an electric conductivity sensor, a lower end of the water tank is connected to the branch liquid return pipe, and the branch liquid return pipe is provided with a branch liquid return pump and a branch liquid return valve group in sequence from the water tank to the outside; the load is a seat cushion and / or a back cushion and / or a side block which can be filled with water as a whole or partially.

2. The occupant proximity cooling device of claim 1, wherein: The branch liquid inlet valve group comprises a branch liquid inlet check valve and / or a branch liquid inlet electromagnetic valve.

3. The occupant proximity cooling device of claim 1, wherein: The branch liquid return valve group comprises a branch liquid return check valve and / or a branch liquid return electromagnetic valve.

4. The occupant proximity cooling device of claim 1, wherein: The liquid return pipe comprises a plurality of liquid return pipe lines, and each of the liquid return pipe lines is provided with a liquid return pipe line valve; the liquid supply pipe comprises a plurality of liquid supply pipe lines, and each of the liquid supply pipe lines is provided with a liquid supply pipe line valve.

5. The occupant proximity cooling device of claim 4, wherein: Any liquid return pipe line and any liquid supply pipe line are connected through a straight-through valve.

6. The occupant proximity cooling device of claim 1, wherein: The compression refrigeration system can be provided with a plurality of parallel connections and is connected to the same micro flow channel evaporator, or a plurality of micro flow channel evaporators.

7. The occupant proximity cooling device of claim 1, wherein: The liquid return booster pump is provided in two groups in parallel, and each group of the liquid return booster pump comprises a booster valve, a booster pump, a check valve and a booster valve which are connected in sequence.

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