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CN-113147510-B - Electric automobile group battery thermal management equipment

CN113147510BCN 113147510 BCN113147510 BCN 113147510BCN-113147510-B

Abstract

The invention discloses battery pack heat management equipment for an electric automobile, which comprises a battery compartment, an air cooling assembly, a heating assembly, a liquid cooling assembly and an evaporation assembly, wherein a plurality of clamping frames are arranged at the bottom of the battery compartment, a supporting net is arranged in each clamping frame, a plurality of vertical plates are arranged on the inner wall of the battery compartment corresponding to the clamping frames, a battery pack is placed in each clamping frame, the battery pack is electrically connected with a temperature sensor and a controller, the controller is electrically connected with a vehicle-mounted air conditioner refrigerating system, the heating assembly comprises a first partition plate between the battery packs, ventilation cavities are arranged in the first partition plate, and a heating assembly is arranged in the leftmost ventilation cavity.

Inventors

  • HAN CHUNQIANG
  • LI ZHONGQIN
  • ZHU LIGUI
  • ZHANG DESHENG

Assignees

  • 哈尔滨载程新能源科技有限公司

Dates

Publication Date
20260508
Application Date
20210519

Claims (10)

  1. 1. The utility model provides an electric automobile group battery thermal management equipment, includes battery compartment (1), forced air cooling subassembly, heating up subassembly, liquid cooling subassembly and evaporation subassembly, its characterized in that, battery compartment (1) bottom is equipped with a plurality of joint frame (26), be equipped with supporting network (25) in joint frame (26), be equipped with a plurality of risers (24) on the inner wall of battery compartment (1) corresponding joint frame (26), group battery (2) have been placed in joint frame (26), heating up subassembly includes baffle one (10) between group battery (2), all be equipped with ventilation chamber (13) in baffle one (10), be equipped with heating subassembly (11) in ventilation chamber (13) of leftmost, the left and right sides of all other ventilation chamber (13) except ventilation chamber (13) of leftmost all are equipped with a plurality of heat pipes (12), forced air cooling subassembly includes air-supply line (3) and air-out pipe (4), the rear end of heating subassembly (11) and ventilation chamber (13) all communicates air-supply line (3), the front end of heating subassembly (11) and ventilation chamber (13) all communicates out (4); The evaporation assembly comprises a first heat exchanger (14), the right end of the air outlet pipe (4) passes through the first heat exchanger (14), the lower end of the air outlet pipe (4) is connected with a return pipe (15), the return pipe (15) is connected with a first storage tank (17), a booster pump is arranged on the return pipe (15), the outlet of the first storage tank (17) is connected with an atomization spray pipe (16), and the atomization spray pipe (16) is connected with the air inlet pipe (3); The liquid cooling assembly comprises a liquid inlet pipe (19), the upper right side of the battery compartment (1) is connected with the liquid inlet pipe (19), one end, far away from the battery compartment (1), of the liquid inlet pipe (19) is connected with a second storage tank (20), the second storage tank (20) is connected with a second heat exchanger (21), the second heat exchanger (21) is connected with a third temporary storage tank (22) through a pipeline, and the third temporary storage tank (22) is connected with a liquid outlet at the bottom of the battery compartment (1).
  2. 2. The electric vehicle battery pack thermal management apparatus according to claim 1, wherein the battery pack (2) is electrically connected with a temperature sensor and a controller, and the controller is electrically connected with a vehicle-mounted air conditioner refrigerating system.
  3. 3. The electric vehicle battery pack thermal management apparatus according to claim 1, wherein the heat conducting pipe (12) is a vertical hollow pipe, through holes are uniformly formed in the pipe, a clamping strip is arranged on the outer side of the pipe, and the clamping strip is inserted into the first partition board (10).
  4. 4. The electric vehicle battery pack thermal management apparatus of claim 1, wherein the heating assembly (11) is composed of a plurality of parallel transverse heating units, and air flow channels are reserved between the heating units.
  5. 5. The electric automobile battery pack thermal management device according to claim 1, wherein the positions of the air inlet pipe (3) and the air outlet pipe (4) close to the battery compartment (1) are respectively provided with a first valve (5), the air inlet pipe (3) is provided with a second valve (6), the left side of the second valve (6) is communicated with an air outlet of the first fan (9), and an air inlet of the first fan (9) is connected with the circulating pipe (8).
  6. 6. The electric vehicle battery pack thermal management apparatus according to claim 5, wherein the right end of the circulation pipe (8) is connected to the air inlet pipe (3).
  7. 7. The electric vehicle battery pack thermal management device according to claim 1, wherein the liquid outlet is connected to the liquid inlet pipe (19) through the intermediate pipe (7).
  8. 8. The electric vehicle battery pack thermal management device according to claim 1, wherein the temporary storage tank III (22) is connected with a heat storage tank (23), the heat storage tank (23) is directly connected with the liquid inlet pipe (19) through a pipeline, and a booster pump is installed at the heat storage tank (23).
  9. 9. The electric vehicle battery pack thermal management apparatus according to claim 1, wherein a filling layer (18) is filled between the first separator (10), the supporting net (25) and the riser (24), and the filling layer (18) is made of porous materials.
  10. 10. The electric vehicle battery pack thermal management device according to claim 1, wherein the first heat exchanger (14) and the second heat exchanger (21) are respectively connected with a vehicle-mounted air conditioner refrigerating system through pipelines.

Description

Electric automobile group battery thermal management equipment Technical Field The invention relates to the technical field of electric automobiles, in particular to electric automobile battery pack thermal management equipment. Background An electric automobile battery pack is one of the core components of an electric automobile. The battery pack can generate a large amount of heat during operation, if heat cannot be timely dissipated, particularly in high-temperature weather, spontaneous combustion accidents of the battery can even occur, so that effective heat dissipation of the battery is needed for ensuring the safety of the battery pack. And when the ambient temperature is lower, the characteristics of the battery can be obviously reduced, and the power and the endurance mileage of the electric automobile are affected. Therefore, the electric automobile needs to be provided with a set of equipment for managing the temperature of the battery pack so as to ensure the safety of the battery pack and stabilize the battery characteristics. However, the existing electric automobile battery pack thermal management equipment has a single cooling mode, cannot adapt to different working states, and has low cooling and heating efficiency and serious power consumption. Accordingly, the present invention provides a thermal management device for a battery pack of an electric vehicle, so as to solve the problems set forth in the background art. Disclosure of Invention The invention aims to provide thermal management equipment for a battery pack of an electric automobile, so as to solve the problems in the background art. The battery pack heat management device for the electric automobile comprises a battery compartment, an air cooling assembly, a heating assembly, a liquid cooling assembly and an evaporation assembly, wherein a plurality of clamping frames are arranged at the bottom of the battery compartment, a supporting net is arranged in each clamping frame, a plurality of vertical plates are arranged on the inner wall of the battery compartment corresponding to the clamping frames, the battery pack is placed in each clamping frame, the heating assembly comprises a first partition plate between the battery packs, ventilation cavities are arranged in the first partition plate, heating assemblies are arranged in the leftmost ventilation cavities, a plurality of heat conduction pipes are arranged on the left side and the right side of the rest ventilation cavities except the leftmost ventilation cavities, each air cooling assembly comprises an air inlet pipe and an air outlet pipe, the rear ends of each heating assembly and each ventilation cavity are communicated with the air inlet pipe, and the front ends of each heating assembly and each ventilation cavity are communicated with the air outlet pipe to air cool the battery compartment. The evaporation assembly comprises a first heat exchanger, the right end of an air outlet pipe penetrates through the first heat exchanger, the lower end of the air outlet pipe is connected with a return pipe, the return pipe is connected with a first storage tank, a booster pump is arranged on the return pipe, an outlet of the first storage tank is connected with an atomizing spray pipe, and the atomizing spray pipe is connected with an air inlet pipe. The liquid cooling assembly comprises a liquid inlet pipe, the upper right side of the battery compartment is connected with the liquid inlet pipe, one end, far away from the battery compartment, of the liquid inlet pipe is connected with a second storage tank, the second storage tank is connected with a second heat exchanger, the second heat exchanger is connected with a third temporary storage tank through a pipeline, and the third temporary storage tank is connected with a liquid outlet at the bottom of the battery compartment. As a further scheme of the invention, the battery pack is electrically connected with a temperature sensor and a controller, and the controller is electrically connected with the vehicle-mounted air conditioner refrigerating system. As a still further scheme of the invention, the heat conducting pipe is a vertical hollow pipe, through holes are uniformly formed in the pipeline, clamping strips are arranged on the outer side of the pipeline and inserted into the first partition plate, so that the contact area is increased, and the heat exchange efficiency is improved. As a still further proposal of the invention, the heating component is composed of a plurality of parallel transverse heating units, and air flow channels are reserved among the heating units, thereby facilitating the air flow. As a still further scheme of the invention, the positions of the air inlet pipe and the air outlet pipe, which are close to the battery compartment, are respectively provided with a valve I, the air inlet pipe is provided with a valve II, the left side of the valve II is communicated with an air outlet of the fan I, and a