CN217778283U

CN217778283U - Automobile thermoelectric warm air conditioner

Info

Publication number: CN217778283U
Application number: CN202221389868.1U
Authority: CN
Inventors: 柏胜强; 吴汀; 宋君强; 陈立东
Original assignee: Shanghai Institute of Ceramics of CAS
Current assignee: Shanghai Institute of Ceramics of CAS
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-11
Anticipated expiration: 2032-06-06

Abstract

The utility model provides an automobile thermoelectric warm air conditioner, which comprises a water pump, a blower and a warm air core body; the warm air core body is positioned in an air guide channel between the air blower and an air outlet in the vehicle cabin and comprises a thermoelectric device, radiating fins and a water channel heat exchanger, the thermoelectric device heats the radiating fins in the warm air core body, and the water channel heat exchanger is connected with a vehicle-mounted cooling system of an automobile and forms a loop. The utility model discloses a thermoelectric warm braw air conditioner of car simple structure, energy consumption are low, be fit for high-power heating, can realize car windshield's quick defrosting defogging to provide comfortable environment for driver and crew.

Description

Automobile thermoelectric warm air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, especially, relate to a thermoelectric warm braw air conditioner of car, concretely relates to thermoelectric warm braw air conditioner of electric automobile.

Background

The existing air conditioner for the electric automobile generally adopts a compressor refrigeration technology for refrigeration; the heating is performed by using water PTC. The rapid defrosting and demisting of the windshield in winter and the heating in the automobile need to use a high-power water PTC heater, so that the power consumption is increased, and the endurance mileage of the electric automobile is remarkably reduced. Some automobile manufacturers try to use CO ₂ Although the energy efficiency of the heat pump air conditioner can be improved, the low-temperature performance of the heat pump air conditioner needs to be optimized, and the problems of working medium leakage, high-pressure pipeline explosion, high cost and the like exist.

The thermoelectric device can realize rapid refrigeration and heating by using the Peltier effect of a semiconductor, not only has the resistance heating effect, but also has the heat pump function, has higher heating energy efficiency ratio compared with a water PTC heater adopting a pure resistance heating mode, and can achieve the heating COP of 1.5-2.0 or even higher. Compared with a PTC heating mode, the thermoelectric air conditioner can reduce the power of a whole vehicle warm air conditioning system by 30-50%, and the effective endurance mileage of the electric vehicle is remarkably improved.

Patent document CN202598944U discloses a thermoelectric heat exchanger capable of providing two different discharge temperatures, which is a patent that a certain amount of organic refrigerant is enclosed in a pipe, the lower side of the pipe is in contact with the hot side of a thermoelectric device, the refrigerant in the pipe is heated to be evaporated, the upper side of the pipe is in contact with the cold side of the thermoelectric device, the refrigerant gas is condensed to release latent heat of vaporization, and absorbed by the thermoelectric device, and heat is transferred between the upper and lower thermoelectric devices by the evaporation and condensation of the refrigerant; the other surface of the thermoelectric device is contacted with the radiating fins, and airflow passes through the radiating fins, flows through the fins on the upper side of the pipeline to form hot air, and flows through the fins on the lower side of the pipeline to form cold air. The technology has the problem of refrigerant leakage, and the structure of the technology is not beneficial to improving the heating COP of the whole system.

Patent document CN107020920A discloses a vehicle-mounted air conditioner heating device, method and vehicle, in which the cold end of a thermoelectric device is connected with an external heat exchange device, the external heat exchange device is arranged in an air conditioning air duct outside the vehicle, the hot end of the thermoelectric device is connected with an internal heating device for heating coolant used by a vehicle-mounted air conditioner, and the heated coolant is sent to a heat exchanger of an in-vehicle air conditioning system through a circulation loop. The cold end heat exchanger is directly arranged in an external air-conditioning air duct, and external heat absorbed from air is limited due to the heat capacity of the air, so that the improvement of the heating COP is influenced; the heat is transferred to the air conditioner heat exchanger in the vehicle by the hot end through the secondary refrigerant, and the indirect heat exchange structure increases the thermal resistance, reduces the heating efficiency of the system and influences the heating rate of the air conditioner.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a thermoelectric warm air conditioner suitable for an electric vehicle and capable of replacing a PTC water heater. The utility model discloses a thermoelectric warm braw air conditioner of car simple structure, energy consumption are low, be fit for high-power heating, can realize car windshield's quick defrosting defogging to provide comfortable environment for driver and crew.

The utility model is realized by the following technical proposal, the utility model provides an automobile thermoelectric warm air conditioner, which comprises a water pump, an air blower and a warm air core body; the warm air core body is positioned in an air guide channel between the blower and an air outlet in the vehicle cabin and comprises a thermoelectric device, radiating fins and a water channel heat exchanger, the thermoelectric device heats the radiating fins in the warm air core body, and the water channel heat exchanger is connected with a vehicle-mounted cooling system of an automobile and forms a loop;

when the thermoelectric device operates, working current is applied to the thermoelectric device, and the surfaces of the two sides of the thermoelectric device respectively generate heat absorption and heat release effects; cooling liquid in a vehicle-mounted cooling system of an automobile circularly flows through a water channel heat exchanger in a warm air core body through a water pump, the outer wall of the water channel heat exchanger is attached to a heat absorption surface of a thermoelectric device, heat in the cooling liquid is transferred to the heat absorption surface of the thermoelectric device through the outer wall of the water channel heat exchanger and then is discharged from a heat release surface through the thermoelectric device, and joule heat generated by the thermoelectric device is transferred to a heat dissipation fin together; the air blown by the blower flows through the heat dissipation fins, is heated, and is finally guided into the vehicle cabin through the air outlet.

According to the utility model discloses a thermoelectric warm braw air conditioner utilizes the radiating fin in the thermoelectric device direct heating warm braw core, and the water channel in the warm braw core is direct to link to each other with on-vehicle cooling system and forms the return circuit, has reduced the thermal resistance when guaranteeing the thermal in the effective absorption on-vehicle cooling system, has improved air conditioning system's whole efficiency of heating.

Preferably, the heat dissipation fins are roll-formed in a wave shape by a copper strip or an aluminum strip.

Preferably, the heat release surface of the thermoelectric device in the warm air core body is attached to the heat dissipation fin, and the heat absorption surface of the thermoelectric device is attached to the outer wall of the water channel heat exchanger.

Preferably, the water channel heat exchanger in the warm air core forms a loop with the vehicle-mounted cooling system through cooling liquid and a water pump.

Preferably, the surfaces of the heat absorbing surface and the heat releasing surface of the thermoelectric device in the warm air core body are metalized copper-clad.

Preferably, an air outlet in the vehicle cabin is provided with a temperature sensor.

Preferably, the adjustment and control of the temperature and the air quantity of the air outlet are realized by changing the working voltage or current of the thermoelectric device and the air blower.

Preferably, the automobile thermoelectric warm air conditioner is used for an electric automobile.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses can carry the partial heat in the on-vehicle cooling system to the driver's cab, improve the heating efficiency of warm braw air conditioning system, make heating efficiency (COP) exceed 1.0, save the energy consumption, can reduce the temperature of coolant liquid in the on-vehicle cooling system again, improve the cooling effect; the utility model discloses can control the air-out temperature of air outlet as required, realize the quick promotion of the interior temperature of car in winter and windshield's quick defrosting defogging.

Drawings

Fig. 1 is a schematic structural diagram of a thermoelectric warm air conditioning system of an automobile according to the present invention.

Fig. 2 is a schematic structural diagram of a warm air core of a thermoelectric warm air conditioning system of an automobile.

Reference numerals:

1-an on-board cooling system;

2, a water pump;

3-a blower;

4-a warm air core body;

5-a thermoelectric device;

6-radiating fins;

7-water channel heat exchanger;

8-cooling liquid.

Detailed Description

The present invention is further described below in conjunction with the following embodiments and the accompanying drawings, it being understood that the drawings and the following embodiments are illustrative of the present invention only and are not limiting.

As shown in fig. 1 and 2, the present invention provides a thermoelectric warm air conditioner for an automobile, especially provides a thermoelectric warm air conditioner for an electric automobile, which comprises a water pump 2, a blower 3 and a warm air core 4; the warm air core body 4 is located in an air guide channel between the air blower 3 and an air outlet in the vehicle cabin and comprises a thermoelectric device 5, radiating fins 6 and a water channel heat exchanger 7, the thermoelectric device 5 heats the radiating fins 6 in the warm air core body 4, and the water channel heat exchanger 7 is connected with a vehicle-mounted cooling system 1 of an automobile to form a loop. In a preferred embodiment, the heat release surface of the thermoelectric device 5 is attached to the heat dissipation fin 6, and the heat absorption surface of the thermoelectric device 5 is attached to the outer wall of the water channel heat exchanger 7; the water channel heat exchanger 7 in the warm air core 4 forms a loop with the vehicle-mounted cooling system 1 through the water pump 2 and the cooling liquid 8.

When the automobile thermoelectric warm air conditioner of the utility model operates, the thermoelectric device 5 is applied with current, the thermoelectric device 5 can generate Peltier effect, and the surfaces at the two sides of the thermoelectric device respectively generate heat absorption and heat release effects; coolant liquid 8 in the vehicle-mounted cooling system 1 flows through a water channel heat exchanger 7 in a warm air core 4 in a circulating mode through a water pump 2, the outer wall of the water channel heat exchanger 7 is attached to a heat absorbing surface of the thermoelectric device 5, part of heat carried in the coolant liquid 8 is transmitted to the heat absorbing surface of the thermoelectric device 5 through the outer wall of the water channel heat exchanger 7, and then is released from a heat releasing surface after passing through the thermoelectric device 5, and finally is transmitted to the heat radiating fins 6 together with joule heat generated by the thermoelectric device 5, and air blown out by the air blower 3 flows through the heat radiating fins 6 to be heated and then is finally led into a vehicle cabin through an air outlet.

The utility model discloses a thermoelectric warm braw air conditioner utilizes the radiating fin in the thermoelectric device direct heating warm braw core, and the water channel in the warm braw core is direct to link to each other with on-vehicle cooling system and forms the return circuit, has reduced the thermal resistance when guaranteeing the thermal in the on-vehicle cooling system of effective absorption, has improved air conditioning system's whole efficiency of heating. The utility model discloses a thermoelectric warm braw air conditioner of car simple structure, energy consumption are low, be fit for high-power heating, can realize car windshield's quick defrosting defogging to provide comfortable environment for driver and crew.

The present invention may be embodied in several forms without departing from the spirit of the essential characteristics thereof, and the embodiments are therefore to be considered in all respects as illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A car thermoelectricity warm air conditioner is characterized by comprising a water pump, a blower and a warm air core body; the warm air core body is positioned in an air guide channel between the air blower and an air outlet in the vehicle cabin and comprises a thermoelectric device, radiating fins and a water channel heat exchanger, the thermoelectric device heats the radiating fins in the warm air core body, and the water channel heat exchanger is connected with a vehicle-mounted cooling system of an automobile and forms a loop.

2. The thermoelectric automotive warm air conditioner according to claim 1, wherein the heat dissipating fins are roll-formed in a wave shape of a copper or aluminum tape.

3. The thermoelectric warm air conditioner for the vehicle as claimed in claim 1, wherein a heat emitting surface of the thermoelectric device in the warm air core is attached to the heat dissipating fin, and a heat absorbing surface of the thermoelectric device is attached to an outer wall of the water passage heat exchanger.

4. The thermoelectric warm air conditioner for an automobile according to claim 1, wherein the water channel heat exchanger in the warm air core is looped with the on-board cooling system by a coolant and a water pump.

5. The thermoelectric automotive heater air conditioner of claim 1, wherein the surfaces of the heat absorbing and heat releasing surfaces of the thermoelectric devices in the heater core are metallized.

6. The thermoelectric air conditioner of claim 1, wherein the air outlet is provided with a temperature sensor.

7. The thermoelectric warm-air conditioner for automobile according to claim 1, wherein the adjustment and control of the outlet temperature and the air volume are realized by changing the operating voltage or current of the thermoelectric device and the blower.

8. The automotive thermoelectric air conditioner according to any one of claims 1 to 7, wherein the automotive thermoelectric air conditioner is used for an electric automobile.