CN210101245U

CN210101245U - Preheating system for fresh air of air conditioner of electric automobile and electric automobile

Info

Publication number: CN210101245U
Application number: CN201920618909.1U
Authority: CN
Inventors: 张晓飞
Original assignee: Tianjin Aican Nick New Energy Automobile Co ltd
Current assignee: Aikonik Green Technology Free Zone Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-21
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a system and electric automobile preheat for electric automobile air conditioner new trend belongs to electric automobile technical field. The utility model provides a preheating system includes radiator and air duct pipe, and the radiator all communicates with electric automobile's electrical apparatus component group and group battery and forms annular loop respectively, and the air duct pipe is used for introducing the air conditioner air inlet with the new trend after the radiator carries out the heat exchange in. This system of preheating can collect the used heat that electrical components group and group battery produced in order to heat the new trend to in the new trend introduction air conditioner after will heating. Because the fresh air has a certain temperature, the air conditioner can reduce the electric quantity required to be consumed by heating the air conditioner to the preset temperature by using the fresh air with the certain temperature, and the improvement of the cruising ability of the electric automobile is facilitated.

Description

Preheating system for fresh air of air conditioner of electric automobile and electric automobile

Technical Field

The utility model relates to an electric automobile technical field especially relates to a system and electric automobile preheat for electric automobile air conditioner new trend.

Background

At present, the world faces the exhaustion of petroleum resources, the living environment of human beings is continuously worsened, and the development of automobile electromotion is a necessary trend. The conventional air conditioner for the automobile mainly heats air in a passenger compartment by using waste heat generated by the operation of an engine located inside the automobile to perform a heating function. The electric automobile using new energy replaces the engine with the electric motor, so that the heating of the passenger compartment can not be realized by using the waste heat of the engine.

At present, the electric automobile mainly uses two schemes to realize the heating function of a passenger compartment: the first is a high voltage PTC (positive temperature coefficient) which is a positive temperature coefficient thermal material having a characteristic that the resistivity increases with an increase in temperature. The high-voltage PTC is electrified to generate heat, and then performs heat exchange with air in the vehicle to realize the heating function of the passenger compartment. However, the scheme is that electric energy is directly converted into heat energy, so that the electric energy consumption is very large, the electric energy storage directly determines the cruising ability of the electric automobile, and particularly the running mileage of the electric automobile can be seriously influenced by turning on the air conditioner in winter.

The second is to adopt a heat pump, and the existing electric automobile generally adopts a heat pump system with a four-way reversing scheme. When the air conditioner is in a refrigeration mode, the compressor compresses a refrigerant, the refrigerant is cooled by the heat exchanger outside the vehicle, and then the refrigerant enters the heat exchanger inside the vehicle to be evaporated, so that heat in air of the passenger compartment is absorbed, and the refrigeration function is realized. When the heating heat pump is in a working mode, the compressor compresses the refrigerant, the refrigerant is reversed by the four-way reversing valve, the high-temperature refrigerant flows into the heat exchanger in the vehicle firstly, the heat of the refrigerant is transferred to the air in the passenger compartment, the cooled refrigerant enters the heat exchanger outside the vehicle for evaporation, and finally returns to the compressor to complete the heating cycle. However, the heat pump system has the problems of low heating efficiency at low temperature (-10 ℃), easy frosting of an outer evaporator and the like. Therefore, the existing electric automobile has serious problems no matter adopting a high-voltage PTC or a heat pump system, and the using effect of the electric automobile and the using experience of a user are seriously reduced, so that the popularization of the electric automobile is restricted.

The electric vehicle has many electrical components 4' to be cooled, such as an electric motor, an ac charger, a branch ac converter, and a power adapter. As shown in fig. 1, an existing heat dissipation system for an electrical component 3 ' generally includes a heat sink 1 ', a fan 2 ', and an electronic water pump 4 ', where the heat sink 1 ' and the electrical component 3 ' are connected into an annular loop through a cooling water pipe, the fan 2 ' is disposed opposite to the heat sink 1 ', and the electronic water pump 4 ' is disposed on the cooling water pipe to drive a cooling liquid to circulate in the annular loop, so as to transfer heat generated by the electrical component 3 ' to the heat sink 1 ' for releasing. Although this heat dissipation system can cool the electrical component 3 ', the heat generated by the electrical component 3' cannot be sufficiently recovered and reused.

In addition to the electrical components 4 ', the battery pack 5' is also a component generating much heat in the electric vehicle. As shown in fig. 2, the conventional heat dissipation system for the battery pack 5 'generally includes a heat sink 1', a fan 2 ', an electronic water pump 3', a water-heating type high-pressure PTC 6 ', and a gas-liquid heat exchanger 8'. Radiator 1 ', hot-water heating formula high pressure PTC 6' and group battery 5 'connect gradually through the water-cooling pipeline and form the annular circuit, and fan 2' is just setting up radiator 1 ', and electronic pump 4' sets up on condenser tube, and the coolant liquid circulates in condenser tube to utilize radiator 1 'to realize the cooling to group battery 5'. Of course, the radiator 1 'can also be replaced by the gas-liquid heat exchanger 8', or the two ends of the radiator 1 'are connected with the gas-liquid heat exchanger 8' in parallel, and an electronic water valve 7 'is arranged at the communication position, one side of the gas-liquid heat exchanger 8' is communicated with cooling liquid, the other side of the gas-liquid heat exchanger 8 'is communicated with air-conditioning refrigerant, and the air-conditioning refrigerant evaporates and absorbs heat in the cooling liquid in the gas-liquid heat exchanger 8' to achieve the purpose. The gas-liquid heat exchanger 8 ' and the radiator 1 ' may be operated simultaneously or individually, but in either method, the heat generated by the stack 5 ' cannot be sufficiently recovered and reused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a system of preheating for electric automobile air conditioner new trend, this system of preheating can make full use of electric automobile's used heat, has reduced the electric quantity that electric automobile air conditioner consumed, has improved electric automobile's effective duration.

Another object of the utility model is to provide an electric automobile, this electric automobile's air conditioner power consumption is low, electric automobile's duration is strong.

To achieve the purpose, the utility model adopts the following technical proposal:

a system of preheating for electric automobile air conditioner new trend includes:

the radiator is communicated with an electric appliance element group and a battery pack of the electric automobile through cooling pipelines and forms an annular loop respectively;

the air duct pipe, the radiator sets up the wind gap department of air duct pipe, the air duct pipe be used for with the new trend after the radiator carries out the heat exchange is introduced in electric automobile's the air conditioner air inlet.

Preferably, the heat sink includes an electrical component heat sink and a battery heat sink, the electrical component heat sink and the electrical component group are communicated through the cooling pipeline and form an annular loop, and the battery heat sink and the battery pack are communicated through the cooling pipeline and form an annular loop.

Preferably, the cooling pipeline comprises a first cooling pipeline and a second cooling pipeline, and the electrical component radiator is communicated with the electrical component group through the first cooling pipeline and forms an annular loop; the battery radiator is communicated with the battery pack through the second cooling pipeline and forms an annular loop.

Preferably, a direction adjusting mechanism is arranged in the air duct pipe and used for conducting or blocking an air flow channel in the air duct pipe.

Preferably, the direction adjustment mechanism comprises a wind shield and a driving piece, one end of the wind shield is rotatably connected to the inner wall of the air duct pipe, and the driving piece is in transmission connection with the wind shield and is used for driving the wind shield to rotate so that the wind shield has a first position for conducting the air flow channel and a second position for blocking the air flow channel.

Preferably, the air duct pipe is provided with a flow port, and the flow port is provided with a blocking mechanism configured to close the flow port when the wind deflector is in the first position and open the flow port when the wind deflector is in the second position.

Preferably, the shielding mechanism is the wind deflector.

Preferably, the air duct pipe comprises a first pipe and a second pipe which are communicated, the first pipe is in a horn shape, the large-caliber end of the first pipe faces the radiator, and the small-caliber end of the first pipe is communicated with one end of the second pipe.

Preferably, the second tube has a cylindrical shape, and a diameter of the second tube is equal to a diameter of the small-diameter end of the first tube.

Preferably, the preheating system for fresh air of the air conditioner of the electric automobile further comprises:

and the air guide mechanism is used for guiding fresh air to the radiator.

Preferably, the air guide mechanism is an air guide plate.

Preferably, the electrical component radiator and the battery radiator are arranged at the air inlet of the air duct pipe side by side along the flowing direction of fresh air.

Preferably, the electrical component radiator and the battery radiator are vertically arranged at an air inlet of the air duct pipe.

Preferably, the electrical component heat sink and the battery heat sink are integrated into a unitary structure.

and the cooling fan is arranged at the air inlet of the air duct pipe.

Preferably, a first pump is provided on the first cooling line.

Preferably, a second pump is provided in the second cooling line.

Preferably, a PTC is provided on the first cooling line and/or the second cooling line.

The utility model provides an electric automobile, includes air conditioner and the preheating system who is used for electric automobile air conditioner new trend, the preheating system who is used for electric automobile air conditioner new trend includes:

the air duct pipe, the radiator sets up the wind gap department of air duct pipe, the air duct pipe be used for with the new trend after the radiator carries out the heat exchange is introduced electric automobile in the air conditioner air inlet.

The utility model has the advantages that:

the utility model provides a system of preheating for electric automobile air conditioner new trend should preheat the system through setting up radiator and wind channel pipe, can collect the used heat that electrical components group and group battery produced in order to heat the new trend to in introducing the air conditioner with the new trend after heating. Because the new trend has the uniform temperature, the air conditioner uses the new trend that has the uniform temperature can reduce the air conditioner and heat to the required electric quantity that consumes of temperature of predetermineeing, and the electric quantity that will save is used for driving electric automobile and is favorable to improving electric automobile's duration.

Drawings

FIG. 1 is a schematic diagram of a prior art heat dissipation system for electrical components;

fig. 2 is a schematic diagram of a prior art battery pack heat dissipation system;

fig. 3 is a schematic diagram of a preheating system for fresh air of an electric vehicle air conditioner provided by the present invention;

fig. 4 is a schematic structural diagram of a partial structure of a preheating system for fresh air of an electric vehicle air conditioner provided by the present invention;

fig. 5 is a flow chart of a heating process of the electric vehicle provided by the present invention;

fig. 6 is a flow chart of the electric vehicle cooling process provided by the present invention.

In the figure:

1', a radiator; 2', a fan; 3', electrical components; 4', an electronic water pump; 5', a battery pack; 6', water heating type high-voltage PTC; 7', an electronic water valve; 8', a gas-liquid heat exchanger;

1. an electrical component group; 2. a battery pack; 3. an electrical component heat sink; 4. a first cooling line; 5. a battery heat sink; 6. a second cooling circuit; 7. an air duct pipe; 701. a first tube; 702. a second tube; 703. a flow port; 8. an air conditioner; 9. a direction adjustment mechanism; 10. a cooling fan; 11. a first pump; 12. a second pump; 13. a PTC; 14. an air guide mechanism.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides an electric automobile, and this electric automobile includes automobile body, air conditioner 8, electrical components group 1, group battery 2 and is used for the preheating system (hereinafter referred to as preheating system) of electric automobile air conditioner new trend. Wherein, the air conditioner 8, the electrical component group 1, the battery pack 2 and the preheating system are all arranged in the vehicle body. The air conditioner 8 is mainly used to change the temperature environment in the vehicle body. The electrical component group 1 specifically refers to an electrical component capable of generating waste heat in the electric vehicle, and in the present embodiment, the electrical component is not particularly limited as long as the electrical component can generate waste heat, and the electrical component group 1 may be a member of the electrical component group, for example, a motor, an ac charger, a converter, a power distributor, and the like. The battery pack 2 includes a plurality of batteries, which are power sources of the electric vehicle.

The electric automobile that this embodiment provided carries out primary heating to the new trend that gets into air conditioner 8 through adopting preheating system, has improved the temperature of the new trend that gets into in the air conditioner 8 to a certain extent to reduced air conditioner 8 and heated the new trend to predetermineeing the required electric quantity of temperature, this part electric quantity of saving can be used for improving electric automobile's duration.

As shown in fig. 3 and 4, the preheating system includes a heat sink and a duct 7, the heat sink may be a single heat sink or two heat sinks, and in this embodiment, the heat sinks specifically include an electrical component heat sink 3 and a battery heat sink 5. The electrical component radiator 3 and the battery radiator 5 are both radiators in the prior art, the specific structure is not limited, and the two radiators can be arranged in a split manner or integrated into a whole. The electrical component radiator 3 and the electrical component group 1 are communicated through a first cooling pipeline 4 to form an annular loop, and the battery radiator 5 and the battery pack 2 are communicated through a second cooling pipeline 6 to form an annular loop. The first cooling pipeline 4 and the second cooling pipeline 6 are both provided with cooling liquid, the first cooling pipeline 4 is provided with a first pump 11, the second cooling pipeline 6 is provided with a second pump 12, and the first pump 11 and the second pump 12 are preferably electronic water pumps. Under the action of the two electronic water pumps, the cooling liquid flows in the two cooling pipelines, and waste heat generated by the electrical component group 1 and the battery pack 2 can be absorbed by the cooling liquid flowing through the cooling pipeline and is transmitted to the electrical component radiator 3 and the battery radiator 5 along with the cooling liquid. The electrical component radiator 3 and the battery radiator 5 are disposed at an air inlet of the air duct pipe 7, and the air conditioner 8 is disposed at the air inlet of the air duct pipe 7. Before entering an air inlet of an air duct pipe 7, fresh air firstly exchanges heat with an electrical component radiator 3 and a battery radiator 5, so that waste heat generated by an electrical component group 1 and a battery pack 2 is absorbed, and the temperature of the fresh air is raised to a certain degree; then, fresh air with a certain temperature sequentially passes through the air duct pipe 7 and the air inlet of the air conditioner 8 to enter the air conditioner 8. At this time, if the temperature of the fresh air reaches the preset temperature of the air conditioner 8, the fresh air can be directly discharged from the air outlet of the air conditioner 8; if the temperature does not reach the preset temperature of the air conditioner 8, the air conditioner 8 is required to work to carry out secondary heating on the fresh air. Although the secondary heating is required, the amount of electricity consumed by the battery pack 2 for the secondary heating is much smaller than that consumed by directly heating the original fresh air to the preset temperature by using the air conditioner 8.

Specifically, when the electrical component radiator 3 and the battery radiator 5 are of an integral structure, the first cooling line 4 and the second cooling line 6 on the side of the electrical component radiator 3 and the battery radiator 5 may be combined into one Y-shaped cooling line, a main pipe of the Y-shaped cooling line communicates with the radiators, and two branch pipes communicate with the electrical component group 1 and the battery group 2, respectively. When the electrical component radiator 3 and the battery radiator 5 are in a split structure, the electrical component radiator 3 and the battery radiator 5 may be arranged up and down, left and right, or side by side along the flow direction of fresh air at the air inlet of the air duct pipe 7. In order to improve the heat exchange effect of the fresh air and the two radiators, the fresh air is selected to be arranged side by side along the flowing direction of the fresh air. In the present embodiment, the electrical component radiator 3 is disposed between the battery radiator 5 and the air duct 7.

Specifically, as shown in fig. 3 and 4, the duct pipe 7 includes a first pipe 701 and a second pipe 702 that are connected to each other, the first pipe 701 is formed in a trumpet shape, and the second pipe 702 is formed in a cylindrical shape. The large-caliber end of the first pipe 701 faces the electrical component radiator 3 and the battery radiator 5, the small-caliber end of the first pipe 701 is communicated with one end of the second pipe 702, and the diameter of the second pipe 702 is equal to that of the small-caliber end of the first pipe 701. By arranging the first pipe 701 in a trumpet shape and aligning the large-diameter end of the first pipe 701 with the electrical component radiator 3 and the battery radiator 5, it is advantageous to draw in more heated fresh air. Of course, in other embodiments, the shape of the duct pipe 7 is not limited to the above shape, and other shapes are also applicable, for example, a cylindrical shape as a whole, a horn shape as a whole, a special shape, or the like.

Further, in order to control the trend of the fresh air so as to conduct the airflow channel in the air duct pipe 7 when the air conditioner 8 is in the heating mode and to block the airflow channel in the air duct pipe 7 when the air conditioner 8 is in the cooling mode, as shown in fig. 3 and 4, a direction adjustment mechanism 9 is provided in the air duct pipe 7. Specifically, in the present embodiment, the direction adjustment mechanism 9 includes a wind deflector and a driving member. One end of the wind shield is rotatably connected to the inner wall of the air duct pipe 7, preferably rotatably connected to the joint of the first pipe 701 and the second pipe 702, the shape and size of the wind shield are not specifically limited, as long as the wind shield can completely block the air duct pipe 7, and fresh air can not pass through the wind shield. The driving part is preferably a motor, and the motor is in transmission connection with the wind deflector and is used for driving the wind deflector to rotate, so that the wind deflector can rotate to a first position for completely conducting the air duct pipe 7 and a second position for blocking the air duct pipe 7.

In order to block the air duct pipe 7, and simultaneously, make the new trend that is blockked by the deep bead can flow out the air duct pipe 7 in order to discharge to the outside of electric automobile, be provided with circulation port 703 on the air duct pipe 7 to be provided with at circulation port 703 and shelter from the mechanism, shelter from the mechanism and be configured to close circulation port 703 when the deep bead is located the first position, in order to avoid taking place new trend when air conditioner 8 is in the mode of heating and leak the phenomenon, and open circulation port 703 when the deep bead is located the second position. In order to simplify the structure and facilitate control, the wind deflector can be directly used as a shielding mechanism, so that the wind deflector has the functions of opening and closing the air duct pipe 7 and opening and closing the circulation port 703.

Further, the preheating system further comprises an air guide mechanism 14, the electrical component radiator 3 and the battery radiator 5 are arranged side by side, the air guide mechanism 14 is arranged on one side, away from the electrical component radiator 3, of the battery radiator 5, and the air guide mechanism 14 is used for guiding fresh air into the electrical component radiator 3 and the battery radiator 5. In this embodiment, the air guiding mechanism 14 is an air guiding plate, and the air guiding plate guides the fresh air passing through the front air grid to the surface of the battery radiator 5, so as to ensure that enough fresh air passes through the battery radiator 5 and the electrical component radiator 3.

Further, the preheating system further comprises a cooling fan 10, the cooling fan 10 is disposed at the air inlet of the air duct pipe 7 and is located between the air inlet of the air duct pipe 7 and the electrical component radiator 3, and the cooling fan 104 is used for increasing the air volume and the air speed of the fresh air passing through the battery radiator 5 and the electrical component radiator 3.

Further, in order to increase the temperature of the coolant to increase the amount of heat carried by the coolant, a PTC13, preferably a water-heating type high-pressure PTC, is provided on the second cooling line 6. In addition to the second cooling line 6, the first cooling line 4 may also be provided with a PTC 13.

The working process of the preheating system is as follows:

when a user of the electric vehicle sends a heating demand, as shown in fig. 5, the air conditioner controller of the air conditioner 8 receives a heating command, normally starts the heating system of the air conditioner 8, controls the internal and external circulation mechanism to be in an external circulation state (fog is easily generated in the internal circulation state), and controls the direction adjustment mechanism 9 to rotate to the first position. Assuming that the ambient temperature is T0, the temperature of the fresh air passing through the radiator is increased to T1. The heated fresh air is guided and introduced to an air inlet of the air conditioner 8 through the air duct pipe 7, and if the temperature of an air outlet of the air conditioner 8 is required to be T2 (T2> T1), the air conditioner 8 continues to work to heat the temperature of the fresh air to T2. After the preheating system is adopted, the air conditioner 8 only needs to increase the temperature of fresh air by (T2-T1) DEG C, while the temperature of the fresh air is increased by (T2-T0) DEG C in the traditional air conditioner 8 system, and the difference value of T2-T1 is far smaller than that of T2-T0, so that the power consumption of the air conditioner 8 is reduced to the greatest extent and the cruising ability of the electric automobile is improved. Of course, the air-conditioning heat pump system or the high-voltage PTC of the air conditioner 8 may also start the blower and the like in synchronization.

And after the user of electric automobile sent the refrigeration demand, as shown in fig. 6, air conditioner 8's air conditioner controller received the refrigeration order, normally started air conditioner 8's refrigerating system to control direction adjustment mechanism 9 to rotate to the second position simultaneously, what 8 air intakes of air conditioner got into was the new trend the same with ambient temperature this moment, and preheating system does not influence electric automobile's the use of refrigeration mode.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a system of preheating for electric automobile air conditioner new trend which characterized in that includes:

the radiator is communicated with both an electric appliance element group (1) and a battery pack (2) of the electric automobile through cooling pipelines and forms annular loops respectively;

air duct pipe (7), the radiator sets up the wind gap department of air duct pipe (7), air duct pipe (7) be used for with the new trend after the radiator carries out the heat exchange is introduced in electric automobile's air conditioner (8) air intake.

2. The preheating system for fresh air of an electric automobile air conditioner according to claim 1, characterized in that the heat sink comprises an electrical component heat sink (3) and a battery heat sink (5), the electrical component heat sink (3) and the electrical component group (1) are communicated through the cooling pipeline and form an annular loop, and the battery heat sink (5) and the battery pack (2) are communicated through the cooling pipeline and form an annular loop.

3. The preheating system for fresh air of an electric automobile air conditioner according to claim 2, characterized in that the cooling pipeline comprises a first cooling pipeline (4) and a second cooling pipeline (6), the electrical component radiator (3) is communicated with the electrical component group (1) through the first cooling pipeline (4) and forms an annular loop; the battery radiator (5) is communicated with the battery pack (2) through the second cooling pipeline (6) and forms an annular loop.

4. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 1, wherein a direction adjusting mechanism (9) is arranged in the air duct pipe (7), and the direction adjusting mechanism (9) is used for conducting or blocking an air flow channel in the air duct pipe (7).

5. The preheating system for fresh air of electric automobile air conditioners as claimed in claim 4, wherein the direction adjusting mechanism (9) comprises a wind shield and a driving member, one end of the wind shield is rotatably connected to the inner wall of the air duct pipe (7), and the driving member is in transmission connection with the wind shield and is used for driving the wind shield to rotate so that the wind shield has a first position for conducting the air flow channel and a second position for blocking the air flow channel.

6. The preheating system for fresh air for electric vehicle air conditioners according to claim 5, wherein a circulation port (703) is provided on the air duct pipe (7), a blocking mechanism is provided at the circulation port (703), the blocking mechanism is configured to close the circulation port (703) when the wind deflector is in the first position, and to open the circulation port (703) when the wind deflector is in the second position.

7. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 6, wherein the shielding mechanism is the wind shield.

8. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 1, wherein the air duct pipe (7) comprises a first pipe (701) and a second pipe (702) which are communicated, the first pipe (701) is horn-shaped, a large-caliber end of the first pipe (701) faces the heat sink, and a small-caliber end of the first pipe (701) is communicated with one end of the second pipe (702).

9. The preheating system for fresh air of an electric vehicle air conditioner as claimed in claim 8, wherein the second pipe (702) is cylindrical, and the diameter of the second pipe (702) is equal to the diameter of the small-diameter end of the first pipe (701).

10. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 1, further comprising:

the air guide mechanism (14), air guide mechanism (14) are used for leading new trend to radiator department.

11. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 10, wherein the air guiding mechanism (14) is an air guiding plate.

12. The preheating system for fresh air of an electric vehicle air conditioner as claimed in claim 2, wherein the electrical component radiator (3) and the battery radiator (5) are arranged side by side at an air inlet of the air duct pipe (7) along a flow direction of the fresh air.

13. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 2, wherein the electrical component radiator (3) and the battery radiator (5) are arranged up and down at an air inlet of the air duct pipe (7).

14. The preheating system for fresh air of an electric vehicle air conditioner according to claim 2, characterized in that the electrical component radiator (3) and the battery radiator (5) are integrated into a unitary structure.

15. The preheating system for fresh air of an electric automobile air conditioner as claimed in claim 1, further comprising:

and the cooling fan (10), wherein the cooling fan (10) is arranged at the air inlet of the air duct pipe (7).

16. The preheating system for fresh air of an electric automobile air conditioner according to claim 3, characterized in that a first pump (11) is arranged on the first cooling pipeline (4).

17. The preheating system for fresh air of an electric vehicle air conditioner as claimed in claim 3, wherein a second pump (12) is arranged on the second cooling pipeline (6).

18. The preheating system for fresh air of an electric vehicle air conditioner as claimed in claim 3, wherein a PTC (13) is arranged on the first cooling pipeline (4) and/or the second cooling pipeline (6).

19. The utility model provides an electric automobile, its characterized in that includes air conditioner (8) and the preheating system who is used for electric automobile air conditioner new trend, the preheating system who is used for electric automobile air conditioner new trend includes:

air duct pipe (7), the radiator sets up the wind gap department of air duct pipe (7), air duct pipe (7) be used for with the new trend after the radiator carries out the heat exchange is introduced electric automobile in air conditioner (8) the air inlet.