CN216903112U

CN216903112U - A samming device and samming system for new forms of energy battery module

Info

Publication number: CN216903112U
Application number: CN202220298843.4U
Authority: CN
Inventors: 徐红宝; 周赛洪
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-05
Anticipated expiration: 2032-02-14

Abstract

The utility model provides a temperature equalizing device and a temperature equalizing system for a new energy battery module, and belongs to the technical field of new energy equipment. The temperature equalizing device comprises a temperature equalizing base, a heat pipe structure and a TEC chip. The temperature equalizing base is provided with a bearing plane, and the bearing plane is provided with a U-shaped groove and a big end groove. The heat pipe structure comprises a U-shaped pipe and a rectangular big end, the U-shaped pipe is fixedly installed in the U-shaped groove, the rectangular big end is fixedly installed in the big end groove, the U-shaped pipe is provided with a first upper contact surface which is parallel and level to the bearing plane, the rectangular big end is provided with a second upper contact surface, and the TEC chip is attached to the second upper contact surface. Simple structure can improve homogeneity and the reliability to battery module heat dissipation cooling in the battery case, reduces simultaneously and occupies the volume.

Description

A samming device and samming system for new forms of energy battery module

Technical Field

The utility model relates to the technical field of new energy equipment, in particular to a temperature equalizing device and a temperature equalizing system for a new energy battery module.

Background

At present, the energy storage performance of a new energy battery is higher and higher, the temperature rise of the battery is overhigh due to high-rate charge and discharge in the use process, the performance, the service life and the like of the battery are influenced, and if the temperature rise is not effectively treated, even thermal runaway can be caused, so that the life safety of a user is endangered. Therefore, a heat dissipation and cooling design is required to be made in a battery box for storing new energy batteries so as to prolong the service life of the battery module.

In the related art, a liquid cooling plate or a liquid cooling tank structure is usually arranged between a plurality of module gaps of a battery box, a cooling water heat exchange pipe is usually integrated in the battery box, the battery box is connected with a water supply mechanism such as a cooling water tank in a power utilization terminal of a new energy automobile and the like, and heat exchange is carried out between the battery module which generates heat and the battery module through flowing of cooling water, so that heat dissipation and cooling are realized.

By adopting the heat dissipation and cooling design in the related technology, the heat exchange tube used as cooling water in the liquid cooling pipeline has a certain diameter, so that the occupied space is large, and the whole occupied area of the battery box and the battery module is increased. Meanwhile, the cold plates among the modules are generally required to be longitudinally arranged, and the cooling water heat exchange tubes are also required to be arranged in a bending mode for ensuring the heat dissipation effect, so that the flow resistance of cooling water in the flowing process is large, and the flow speed of the cooling water and the flow uniformity of the cooling water at each position of the battery modules cannot be ensured. And set up the booster pump specially for this reason and improve the velocity of flow and again can lead to whole cost to improve, be difficult to accomplish flow, flow resistance and temperature uniformity can't compromise, lead to the heat dissipation cooling performance lower.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a temperature equalizing device and a temperature equalizing system for a new energy battery module, which are simple in structure, can improve the uniformity and reliability of heat dissipation and cooling of the battery module in a battery box, and simultaneously reduce the occupied volume. The technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides a temperature equalization device for a new energy battery module, including:

the battery pack comprises a temperature equalizing base, a battery pack and a battery pack, wherein a bearing plane for bearing a battery cell is arranged on the temperature equalizing base, a U-shaped groove and a big end groove are arranged on the bearing plane, and two ends of the U-shaped groove are communicated with the big end groove;

the heat pipe structure comprises a U-shaped pipe and a rectangular big end, wherein two ends of the U-shaped pipe are communicated with the rectangular big end, the U-shaped pipe is fixedly arranged in the U-shaped groove, the rectangular big end is fixedly arranged in the big end groove, phase change working media are filled in the U-shaped pipe and the rectangular big end, a capillary structure is arranged on the inner wall of the U-shaped pipe and the rectangular big end, the U-shaped pipe is provided with a first upper contact surface which is flush with the bearing plane, and the rectangular big end is provided with a second upper contact surface which is parallel with the bearing plane;

and the TEC chip is attached to the second upper contact surface and is used for being electrically connected with the battery management system.

Optionally, the temperature equalizing device includes a plurality of heat pipe structures, the rectangular large ends of the plurality of heat pipe structures are arranged in parallel at intervals, and the temperature equalizing base is provided with a plurality of groups of U-shaped grooves and large end grooves corresponding to the plurality of heat pipe structures one to one.

Optionally, the bearing plane is provided with a limiting baffle plate, the limiting baffle plate is vertically connected with the bearing plane, and the limiting baffle plate is arranged around the plurality of groups of U-shaped grooves.

Optionally, the limiting baffle is detachably connected with the temperature equalizing base.

Optionally, a tubular flow channel is arranged inside the temperature equalizing base, and the tubular flow channel is parallel to the bearing plane and is attached to the large rectangular ends of the plurality of heat pipe structures.

Optionally, the temperature equalizing base includes a plurality of the tubular runners, and the plurality of the tubular runners are arranged in parallel in sequence along the horizontal direction.

Optionally, the first upper contact surface is coated with a thermally conductive silicone layer.

Optionally, the U-shaped tube is brazed with the U-shaped groove, and the rectangular large end is brazed with the large end groove.

In a second aspect, an embodiment of the present invention further provides a temperature equalizing system, including the temperature equalizing device for a new energy battery module according to the first aspect, further including a battery management system, a relay, a power supply unit, and a control circuit unit, where the battery management system, the relay, the power supply unit, and the TEC chip are electrically connected in sequence, and the battery management system is electrically connected to the control circuit unit.

Optionally, the power supply unit is a low-temperature lithium ion battery or a super capacitor.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:

through setting up the samming base in the battery case bottom of new forms of energy battery module, put into the battery case with electric core and set up on bearing the plane after, the U-shaped pipe can be through the first smooth contact of going up the bottom of contact surface and electric core. And a TEC chip is attached to a second upper contact surface of the rectangular large end positioned beside the U-shaped tube. When the cell temperature of the new energy battery module exceeds a set threshold value during working, the battery management system can be utilized to provide direct current for the TEC chip through the control circuit, so that the TEC chip and the second upper contact surface refrigerate, and the whole rectangular large end becomes a condensation end of the heat pipe structure. The phase change working medium filled in the heat pipe structure, such as acetone or other volatile liquid working mediums with lower boiling point, evaporates into gas after flowing into the U-shaped pipe to absorb heat emitted by the electric core m, high-temperature gaseous working medium can flow into the rectangular big end with lower temperature and is cooled in the rectangular big end to be changed into liquid again, and the emitted heat can be discharged through the TEC chip or a water cooling or air cooling structure arranged on one side of the rectangular big end far away from the electric core. And the working medium which is changed back to the low-temperature liquid state flows into the U-shaped pipe close to the heat source again under the action of the capillary structure on the inner wall, so that the heat dissipation circulation is formed. Adopt this samming device, compare the tradition in the correlation technique and adopt and set up the cold drawing in the electric core clearance of battery module and utilize the water-cooling to dispel the heat the cooling. Its bottom at electricity core m sets up the heat pipe structure that combines together with the TEC chip, and is more level and more smooth with the contact surface of electricity core, and heat conduction efficiency is higher, can improve homogeneity and the reliability to battery module heat dissipation cooling in the battery case, reduces simultaneously and occupies the volume.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an exploded perspective view of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention;

fig. 2 is a schematic view of an assembly structure of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention;

fig. 3 is a partial structural sectional view of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of another temperature equalization base according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a limit baffle according to an embodiment of the present invention;

FIG. 6 is a schematic top view of another temperature equalization base according to an embodiment of the present invention;

fig. 7 is a block diagram of a control structure of a temperature equalization system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

By adopting the heat dissipation and cooling design in the related technology, the heat exchange tube used as cooling water in the liquid cooling pipeline has a certain diameter, so that the occupied space is large, and the whole occupied area of the battery box and the battery module is increased. Meanwhile, the cold plates among the modules are generally required to be longitudinally arranged, and the cooling water heat exchange tubes are also required to be arranged in a bending mode for ensuring the heat dissipation effect, so that the flow resistance of cooling water in the flowing process is large, and the flow speed of the cooling water and the flow uniformity of the cooling water at each position of the battery modules cannot be ensured. And set up the booster pump for this purpose specially and improve the velocity of flow and again can lead to whole cost to improve, be difficult to accomplish flow, flow resistance and temperature uniformity's compromise, lead to the heat dissipation cooling performance lower.

Fig. 1 is an exploded perspective view of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention. Fig. 2 is a schematic view of an assembly structure of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention. Fig. 3 is a partial structural sectional view of a temperature equalizing device for a new energy battery module according to an embodiment of the present invention. Fig. 4 is a schematic perspective view of another temperature equalizing base according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a limit baffle according to an embodiment of the present invention. Fig. 6 is a schematic top view of another temperature equalizing base according to an embodiment of the present invention. As shown in fig. 1 to 6, by practice, the applicant provides a temperature equalizing device for a new energy battery module, which comprises a temperature equalizing base 1, a heat pipe structure 2 and a TEC chip 3.

The temperature equalizing base 1 is provided with a bearing plane 11 for bearing the battery cell m, the bearing plane 11 is provided with a U-shaped groove 111 and a big end groove 112, and two ends of the U-shaped groove 111 are communicated with the big end groove 112.

The heat pipe structure 2 includes a U-shaped pipe 21 and a rectangular large end 22, and both ends of the U-shaped pipe 21 communicate with the rectangular large end 22. U-shaped pipe 21 is fixedly arranged in U-shaped groove 111, rectangular big end 22 is fixedly arranged in big end groove 112, U-shaped pipe 21 and rectangular big end 22 are filled with phase change working medium, and the inner wall of U-shaped pipe 21 and rectangular big end 22 is provided with a capillary structure. The U-shaped tube 21 has a first upper contact surface 211 flush with the bearing plane 11 and the rectangular large end 22 has a second upper contact surface 221 parallel with the bearing plane 11.

The TEC chip 3 is attached to the second upper contact surface 221, and the TEC chip 3 is used for electrical connection with the battery management system 4.

In the embodiment of the present invention, the temperature equalizing base 1 may be disposed at the bottom of a battery box of the new energy battery module, and is used for bearing the battery core m with the plane 11 facing upward. The heat pipe structure 2 is fixedly mounted in the U-shaped groove 111 and the large end groove 112 formed on the bearing plane 11 in a matching manner, wherein the U-shaped pipe 21 extending in the horizontal direction has a first upper contact surface 211 flush with the bearing plane 11. After the cell m is placed in the battery box and is disposed on the bearing plane 11, the U-shaped tube 21 can be in flat contact with the bottom of the cell m through the first upper contact surface 211. And a TEC (thermal Electric Cooler) chip 3 is attached to the second upper contact surface 221 of the rectangular large end 22 beside the U-shaped tube. When the temperature of the electric core m of the new energy battery module during operation exceeds a set threshold value, the battery management system 4 can be used for providing direct current to the TEC chip 3 through the control circuit, so that the TEC chip 3 and the second upper contact surface 221 are cooled, and the whole rectangular large end 22 becomes a condensation end of the heat pipe structure 2. The phase change working medium filled in the heat pipe structure 2, such as acetone or other volatile liquid working medium with a lower boiling point, evaporates into gas after flowing into the U-shaped pipe 21 to absorb heat emitted from the electric core m, the high-temperature gaseous working medium flows into the rectangular large end 22 with a lower temperature and is cooled in the rectangular large end 22 to be changed into liquid again, and the emitted heat can be discharged through the TEC chip 3 or a water cooling or air cooling structure arranged on one side of the rectangular large end 22 far away from the electric core m. And the working medium changed back to the low-temperature liquid state flows into the U-shaped pipe 21 close to the heat source again under the action of the capillary structure on the inner wall, so that the heat dissipation circulation is formed. Adopt this samming device, compare the tradition in the correlation technique and adopt and set up the cold drawing in the electric core clearance of battery module and utilize the water-cooling to dispel the heat the cooling. Its bottom at electric core m sets up the heat pipe structure 2 that combines together with TEC chip 3, and is more level and smooth with electric core m's contact surface, and heat conduction efficiency is higher, can improve homogeneity and the reliability to battery module heat dissipation cooling in the battery case, reduces simultaneously and occupies the volume.

Exemplarily, in the embodiment of the present invention, by providing the TEC chip 3, when the external environment temperature is low in winter and the temperature of the battery cell m of the new energy battery module is lower than the temperature threshold for normal operation during operation. The battery management system 4 may also be used to provide a reverse direct current to the TEC chip 3 through the control circuit, so that the TEC chip 3 and the second upper contact surface 221 heat up, and the entire rectangular large end 22 becomes a heat emitting end of the heat pipe structure 2. The working medium evaporated to be in a high-temperature gas state in the rectangular large end 22 can be absorbed by the electric core m with relatively low temperature after flowing to the U-shaped pipe 21, so that the temperature of the electric core is increased, and the normal operation of the battery module is ensured. The liquid working medium with the reduced temperature can flow into the rectangular big end 22 again to realize circulation.

Optionally, the temperature equalizing device comprises a plurality of heat pipe structures 2, the rectangular large ends 22 of the plurality of heat pipe structures 2 are arranged in parallel at intervals, and the temperature equalizing base 1 is provided with a plurality of groups of U-shaped grooves 111 and large end grooves 112 corresponding to the plurality of heat pipe structures 2 one to one. Exemplarily, in the embodiment of the present invention, by arranging the plurality of heat pipe structures 2 on the temperature equalizing base in parallel along the horizontal direction, the plurality of battery cores m arranged on the temperature equalizing base 1 in parallel can be subjected to one-to-one corresponding heat dissipation and temperature equalization, so as to further improve the uniformity and reliability of heat dissipation and temperature reduction of the battery module in the battery box, and improve the efficiency of heat dissipation and temperature equalization.

Optionally, the bearing plane 11 has a limit baffle 113 thereon, the limit baffle 113 is perpendicularly connected to the bearing plane 11, and the limit baffle 113 is disposed around the plurality of sets of U-shaped grooves 111. Illustratively, in the embodiment of the present invention, the limit baffles 113 surrounding the plurality of sets of U-shaped grooves 111 are arranged according to the number and size of the cells m to be carried on the carrying plane 11. Limiting baffle 113 is around injecing the accommodation space that supplies electric core m to place, when installation electric core m, can lead electric core m, makes electric core m can accurately place the U-shaped pipe 21 top that corresponds and contact with first contact surface 211. Meanwhile, the battery core m can be limited to a certain extent during working, relative shaking caused by factors such as vibration is avoided, and the assembly stability of the temperature equalizing device is improved.

Optionally, the limiting baffle 113 is detachably connected with the temperature equalizing base 1. Illustratively, in the embodiment of the present invention, the limit baffle 113 has an insertion protrusion 1131 thereon, and the bearing plane 11 of the temperature equalizing base 1 has an insertion groove 114 that matches with the insertion protrusion 1131 thereon. The limit baffle 113 and the temperature equalizing base 1 are correspondingly matched and installed through the inserting protrusions 1131 and the inserting grooves 114, the structure is simple, the assembly and the disassembly are convenient, and the practicability of the temperature equalizing device is further improved.

Optionally, the temperature equalizing base 1 has a tubular flow channel 12 inside, and the tubular flow channel 12 is parallel to the bearing plane 11 and is attached to the large rectangular ends 22 of the plurality of heat pipe structures 2. Illustratively, in the embodiment of the utility model, the tubular flow passage 12 which traverses the inside of the temperature equalizing base 1 and is attached to the rectangular large end 22 is arranged. The cooling water with different temperatures can be introduced into the tubular flow passage 12 to exchange heat with the phase change working medium in the rectangular big end 22, so that the heat dissipated by the phase change working medium after heat exchange is taken away, or the phase change working medium is heated, and auxiliary liquid cooling or temperature rise is realized. Under some specific working conditions, heat exchange can be carried out between the tubular flow passage 12 and the heat pipe structure 2 independently, so that heat dissipation and temperature equalization of the battery cell m are realized, and the heat dissipation and temperature equalization capacity and the practicability of the temperature equalization device are further improved.

Optionally, the temperature equalizing base 1 includes a plurality of tubular runners 12, and the plurality of tubular runners 12 are sequentially arranged in parallel along the horizontal direction. Exemplarily, in the embodiment of the present invention, the harmonica-shaped liquid cooling flow channel structure is formed by arranging the plurality of tubular flow channels 12 in parallel along the horizontal direction, so that the uniformity of the liquid cooling fluid can be ensured while the heat exchange contact area with the heat pipe structure 2 is increased and the heat exchange efficiency is improved.

Optionally, the first upper contact surface 211 is coated with a thermally conductive silicone grease layer 212. Exemplarily, in the embodiment of the present invention, the first upper contact surface 211 is coated with a thermal grease layer 212, so as to further improve the thermal conduction efficiency between the U-shaped tube 21 and the bottom of the battery cell m, and further improve the heat exchange and temperature equalization efficiency of the temperature equalization device.

Alternatively, the U-shaped tube 21 is brazed to the U-shaped groove 111 and the rectangular large end 22 is brazed to the large end groove 112. Exemplarily, in the embodiment of the present invention, the heat pipe structure 2 and the temperature-uniforming base 1 are integrated by brazing, so that the overall mechanical strength of the temperature-uniforming device can be improved. Meanwhile, the brazing process also has the advantages of smooth joint surface, good air tightness, stable shape and size and high production efficiency, and can further improve the practicability of the temperature equalizing device.

Fig. 7 is a block diagram of a control structure of a temperature equalization system according to an embodiment of the present invention. The temperature equalizing device for the new energy battery module comprises the temperature equalizing device for the new energy battery module shown in fig. 1 to 6, and further comprises a battery management system 4, a relay 5, a power supply unit 6 and a control circuit unit 7, wherein the battery management system 4, the relay 5, the power supply unit 6, the control circuit unit 7 and the TEC chip 3 are electrically connected in sequence, and the battery management system 4 is electrically connected with the control circuit unit 7. Exemplarily, in the embodiment of the present invention, by setting the intelligent bms (battery Management system) battery Management system 4, the operating temperature of the battery cell m can be collected by using the collection module thereof. When the temperature of the electric core m of the new energy battery module during working exceeds a set threshold value, the battery management system 4 controls the relay 5 to be attracted, the power supply unit 6 is conducted and provides direct current for the TEC chip 3, so that the TEC chip 3 and the second upper contact surface 221 are refrigerated, and the whole rectangular large end 22 becomes a condensation end of the heat pipe structure 2. The phase change working medium filled in the heat pipe structure 2, such as acetone or other volatile liquid working medium with a lower boiling point, evaporates into gas after flowing into the U-shaped pipe 21 to absorb heat emitted from the electric core m, the high-temperature gaseous working medium flows into the rectangular large end 22 with a lower temperature and is cooled in the rectangular large end 22 to be changed into liquid again, and the emitted heat can be discharged through the TEC chip 3 or a water cooling or air cooling structure arranged on one side of the rectangular large end 22 far away from the electric core m. And the working medium changed back to the low-temperature liquid state flows into the U-shaped pipe 21 close to the heat source again under the action of the capillary structure on the inner wall, so that the heat dissipation circulation is formed.

And the external environment temperature is lower in winter, and new forms of energy battery module is when the temperature of electric core m is less than the temperature threshold of normal work at the during operation. The battery management system 4 controls the relay 5 to be attracted, the power supply unit 6 is in circuit conduction and provides direct current for the TEC chip 3, and meanwhile the battery management system 4 manages the current to flow reversely through the control circuit unit 7, so that the TEC chip 3 and the second upper contact surface 221 are heated, and the whole rectangular large end 22 becomes a heat emitting end of the heat pipe structure 2. The working medium evaporated to be in a high-temperature gas state in the rectangular large end 22 can be absorbed by the electric core m with relatively low temperature after flowing to the U-shaped pipe 21, so that the temperature of the electric core is increased, and the normal operation of the battery module is ensured. The liquid working medium with the reduced temperature can flow into the rectangular big end 22 again to realize circulation.

And when the temperature of the battery cell m meets the working range, the battery management system 4 disconnects the relay 5 and the control circuit unit 7.

Adopt this samming system, compare the tradition in the correlation technique and adopt and set up the cold drawing in the electric core clearance of battery module and utilize the water-cooling to dispel the heat the cooling. Its bottom at electric core m sets up the heat pipe structure 2 that combines together with TEC chip 3, and is more level and smooth with electric core m's contact surface, and heat conduction efficiency is higher, can improve homogeneity and the reliability to battery module heat dissipation cooling in the battery case, reduces simultaneously and occupies the volume. Meanwhile, the battery management system 4 is utilized to realize automatic monitoring and control on the uniform temperature heat dissipation of the battery module, the maintenance difficulty of the new energy battery module is reduced, and the human resources and the time cost are fully saved

Exemplarily, in the embodiment of the present invention, the power supply unit 6 is a low-temperature lithium ion battery or a super capacitor. Different power supply units 6 can be configured according to the specific use environment of the new energy battery module to supply power to the temperature equalization system, and the embodiment of the utility model is not limited herein.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The utility model is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a samming device for new forms of energy battery module which characterized in that includes:

the battery temperature equalizing device comprises a temperature equalizing base (1), wherein a bearing plane (11) used for bearing a battery core (m) is arranged on the temperature equalizing base (1), a U-shaped groove (111) and a big end groove (112) are arranged on the bearing plane (11), and two ends of the U-shaped groove (111) are communicated with the big end groove (112);

the heat pipe structure (2) comprises a U-shaped pipe (21) and a rectangular large end (22), two ends of the U-shaped pipe (21) are communicated with the rectangular large end (22), the U-shaped pipe (21) is fixedly installed in the U-shaped groove (111), the rectangular large end (22) is fixedly installed in the large end groove (112), phase-change working media are filled in the U-shaped pipe (21) and the rectangular large end (22), a capillary structure is arranged on the inner wall of the U-shaped pipe and the inner wall of the rectangular large end (22), the U-shaped pipe (21) is provided with a first upper contact surface (211) which is flush with the bearing plane (11), and the rectangular large end (22) is provided with a second upper contact surface (221) which is parallel to the bearing plane (11);

and the TEC chip (3) is attached to the second upper contact surface (221), and the TEC chip (3) is used for being electrically connected with the battery management system (4).

2. The temperature equalizing device for the new energy battery module as claimed in claim 1, wherein the temperature equalizing device comprises a plurality of heat pipe structures (2), the rectangular large ends (22) of the plurality of heat pipe structures (2) are arranged in parallel at intervals, and the temperature equalizing base (1) is provided with a plurality of sets of U-shaped grooves (111) and large end grooves (112) corresponding to the plurality of heat pipe structures (2) one by one.

3. The temperature equalizing device for the new energy battery module as claimed in claim 2, wherein a limiting baffle (113) is arranged on the bearing plane (11), the limiting baffle (113) is vertically connected with the bearing plane (11), and the limiting baffle (113) is arranged around the plurality of sets of U-shaped grooves (111).

4. The temperature equalizing device for the new energy battery module as claimed in claim 3, wherein the limiting baffle (113) is detachably connected with the temperature equalizing base (1).

5. The temperature equalizing device for the new energy battery module as claimed in claim 2, wherein the temperature equalizing base (1) is internally provided with a tubular flow channel (12), and the tubular flow channel (12) is parallel to the bearing plane (11) and attached to the rectangular large ends (22) of the plurality of heat pipe structures (2).

6. The temperature equalizing device for the new energy battery module as claimed in claim 5, wherein the temperature equalizing base (1) comprises a plurality of tubular flow channels (12), and the plurality of tubular flow channels (12) are sequentially arranged in parallel along a horizontal direction.

7. The temperature equalizing device for a new energy battery module according to any one of claims 1 to 6, wherein the first upper contact surface (211) is coated with a heat conductive silicone layer (212).

8. The temperature equalizing device for a new energy battery module according to any one of claims 1 to 6, wherein the U-shaped pipe (21) is in brazed connection with the U-shaped groove (111), and the rectangular large end (22) is in brazed connection with the large end groove (112).

9. A temperature equalizing system, comprising the temperature equalizing device for the new energy battery module set according to any one of claims 1 to 8, wherein the temperature equalizing system further comprises a battery management system (4), a relay (5), a power supply unit (6) and a control circuit unit (7), the battery management system (4), the relay (5), the power supply unit (6) and the TEC chip (3) are electrically connected in sequence, and the battery management system (4) and the control circuit unit (7) are electrically connected.

10. The temperature equalizing system for the new energy battery module as claimed in claim 9, wherein the power supply unit (6) is a low temperature lithium ion battery or a super capacitor.