CN213459995U

CN213459995U - Conductive heat dissipation structure suitable for multi-core-pack

Info

Publication number: CN213459995U
Application number: CN202022839501.2U
Authority: CN
Inventors: 金耀权
Original assignee: Zhejiang Newlink Technology Co ltd
Current assignee: Niuwashike (Shanghai) Technology Co.,Ltd.
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-06-15
Anticipated expiration: 2030-12-01

Abstract

The utility model relates to a conductive heat dissipation structure suitable for a multi-electric core group, which comprises a plurality of electric cores, an electric conductor substrate, a heat conduction insulating layer and a heat dissipation module; each battery cell is provided with a battery cell tab at the bottom, the battery cell tab is fixed at the top of the heat dissipation module through the electric conductor substrate, the heat conduction insulating layer is positioned between the electric conductor substrate and the heat dissipation module, and each battery cell tab is at least partially positioned in the heat conduction insulating layer; it is a plurality of electric core realizes establishing ties through the electric conductor of locating in the electric conductor base plate, and this utility model can effectively solve the heat dissipation problem of electric core when reducing the structure complexity.

Description

Conductive heat dissipation structure suitable for multi-core-pack

Technical Field

The utility model relates to a battery technology field, concretely relates to electrically conductive heat radiation structure suitable for many electric core groups.

Background

The service life and the capacity of the battery core in the battery pack module are closely related to the temperature difference and the temperature rise amplitude of the battery pack module. And for the electric core with high discharge multiplying power, the temperature rise of the electric core is high when the heavy current is discharged, and if the heat is not effectively dissipated, the normal work and the service life of the electric core and the control system can be greatly influenced. At present, the heat dissipation mode of the existing battery pack module is generally to add a water cooling plate on the battery pack module layer for heat dissipation, but the complexity of the structure is higher, so that the manufacturing cost of the battery pack module is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists among the prior art, provide a conductive heat radiation structure suitable for many electric core group.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a conductive heat dissipation structure suitable for a multi-electric-core group comprises a plurality of electric cores, an electric conductor substrate, a heat conduction insulating layer and a heat dissipation module; each battery cell is provided with a battery cell tab at the bottom, the battery cell tab is fixed at the top of the heat dissipation module through the electric conductor substrate, the heat conduction insulating layer is positioned between the electric conductor substrate and the heat dissipation module, and each battery cell tab is at least partially positioned in the heat conduction insulating layer; the electric cores are connected in series through electric conductors arranged in the electric conductor substrate.

The working principle and the beneficial effects are as follows: the electric cores are connected in series through the electric conductors arranged in the electric conductor substrate, the electric conductors are arranged in the electric conductor substrate, when the electric conduction device works, heat generated by the electric cores can be transmitted to the electric conductors and the insulating heat conduction layer through the electric core lugs, meanwhile, the heat generated by the electric conductors can also be transmitted to the insulating heat conduction layer, then, the heat is exchanged with the heat dissipation module through the insulating heat conduction layer, and the heat dissipation function is realized through the heat exchange between the heat dissipation module and air or cooling liquid; the battery core and the battery core connecting conductor can be simultaneously cooled, and the heat can be well transferred to the cooling module due to the high temperature and high heat conduction efficiency of the conductor; and the heat dissipation modules are made into a modularized arrangement, so that the heat dissipation modules can be conveniently replaced, and different heat dissipation modules can be replaced according to the number of the battery cells, the heat productivity or the service environment.

Furthermore, each battery cell tab at least comprises a vertical section and a horizontal section, the top of the vertical section is connected with a battery cell, and the bottom of the vertical section penetrates through the electric conductor substrate and the electric conductor to be electrically connected with the horizontal section in the heat-conducting insulating layer. This setting can increase the area of contact with heat conduction insulation layer, improves heat exchange efficiency, and realizes being connected with the electricity of electric conductor, and simple structure can assemble very conveniently moreover.

Further, the heat dissipation module is at least one of passive heat dissipation or active heat dissipation. According to the arrangement, selection can be performed according to actual conditions, for example, selection is performed according to the calorific value of the battery cell or the number of the battery cells, passive heat dissipation can be selected when the number of the battery cells is small and the calorific value is small, and active heat dissipation can be selected when the calorific value is large or the number is large.

Further, the heat dissipation module is air-cooled heat dissipation or water-cooled heat dissipation, and at least one temperature sensor is arranged in the heat conduction insulating layer, and each temperature sensor is in communication connection with the air-cooled heat dissipation or the water-cooled heat dissipation. The temperature sensor is used for detecting the temperature of the electrode lug of the battery cell and the temperature of the electric conductor, so that the heat dissipation efficiency is adjusted through air cooling or water cooling, and the effects of energy conservation, power saving and temperature balance are achieved. The specific structures of the air-cooled heat dissipation and the water-cooled heat dissipation are similar to the structures of an air-cooled heat radiator and a water-cooled heat radiator in the field of PC computers, and are in the forms of heat radiators and heat dissipation fans.

Further, the heat dissipation module is an aluminum block or a copper block with fins. This setting can effectively improve the area of contact of heat dissipation module and air to improve heat exchange efficiency.

Further, the heat conduction insulating layer is heat conduction silica gel or heat conduction double-sided tape. According to the arrangement, the product is convenient to install, automatic production and product maintenance are facilitated, the functions of heat conduction, insulation and fixation can be achieved simultaneously, the size of the equipment can be effectively reduced, and the method is a favorable option for reducing the equipment cost.

Further, heat-conducting silicone grease or heat-conducting sealant is arranged between the heat-conducting insulating layer and the electric conductor substrate and between the heat-conducting insulating layer and the heat dissipation module. This setting can fill the heat conduction insulating layer and the electric conductor base plate/the small clearance that exists between electric conductor and the heat conduction insulating layer and the heat dissipation module top to promote heat transfer area, improve the heat transfer effect.

Furthermore, a through hole is formed in the heat conduction insulating layer, a threaded hole corresponding to the through hole is formed in the heat dissipation module, and a counter bore corresponding to the through hole is formed in the electric conductor. With the arrangement, the electric conductor, the heat conducting insulating layer and the heat dissipation module can be fixed together through common countersunk head screws, wherein the countersunk head screws can be plastic screws.

Further, the bottom of the battery core is abutted to the conductor substrate. This setting for electric core self supports electric core, and not support through electric core utmost point ear, can effectively prevent that the cracked condition of electric core utmost point ear from taking place.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a cell; 2. a battery core tab; 3. an electrical conductor; 4. a conductor substrate; 5. a thermally conductive insulating layer; 6. a heat dissipation module; 21. a vertical section; 22. a horizontal segment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting.

As shown in fig. 1, the conductive heat dissipation structure suitable for a multi-cell group includes a plurality of cells 1, a conductive substrate 4, a heat conductive insulating layer 5, and a heat dissipation module 6, wherein the heat dissipation module 6 is at least one of passive heat dissipation or active heat dissipation. According to the arrangement, selection can be performed according to actual conditions, for example, selection is performed according to the heat productivity of the battery cells 1 or the number of the battery cells 1, passive heat dissipation can be selected when the number of the battery cells 1 is small and the heat productivity is small, and active heat dissipation can be selected when the heat productivity is large or the number is large.

Preferably, the heat dissipation module 6 is air-cooled heat dissipation or water-cooled heat dissipation, and at least one temperature sensor is arranged in the heat conduction insulating layer 5, and each temperature sensor is in communication connection with the air-cooled heat dissipation or the water-cooled heat dissipation. Detect the temperature of electric core utmost point ear 2 and electric conductor 3 department through temperature sensor to adjust the radiating efficiency through air-cooled heat dissipation or water-cooled heat dissipation, realize energy-saving power, temperature balance's effect. The specific structures of the air-cooled heat dissipation and the water-cooled heat dissipation are similar to the structures of an air-cooled heat radiator and a water-cooled heat radiator in the field of PC computers, and are in the forms of heat radiators and heat dissipation fans.

Preferably, the heat dissipation module 6 is an aluminum block or a copper block with fins. This setting can effectively improve the area of contact of heat dissipation module 6 and air to improve heat exchange efficiency.

Specifically, every 1 bottom of electricity core all is equipped with electric core utmost point ear 2, electric core utmost point ear 2 is fixed in the 6 tops of thermal module through electric conductor substrate 4, just thermal insulation layer 5 is located between electric conductor substrate 4 and the thermal module 6, every electric core utmost point ear 2 all is located thermal insulation layer 5 at least partially, and electric conductor 3 passes through electric conductor substrate 4 to be fixed on thermal insulation layer 5.

Specifically, the bottom of the battery cell 1 abuts against the conductor substrate 4. This setting for electric core 1 self supports electric core 1, and not support through electric core utmost point ear 2, can effectively prevent that the cracked condition of electric core utmost point ear 2 from taking place.

Specifically, it is a plurality of electric core 1 realizes establishing ties through electric conductor 3 locating in electric conductor base plate 4, can dispel the heat to electric core 1 and electric core 1 connecting conductor 3 simultaneously, because electric conductor 3 temperature is higher and heat-conduction efficiency is high, the heat can be fine transmit to heat radiation module 6 on.

In this embodiment, the heat conducting insulating layer 5 is provided with a through hole, the heat dissipating module 6 is provided with a threaded hole corresponding to the through hole, and the electric conductor 3 is provided with a counter bore corresponding to the through hole. In this arrangement, the electrical conductor 3, the thermal insulation layer 5 and the heat dissipation module 6 can be fixed together by a common countersunk screw, wherein the countersunk screw can be a plastic screw.

Specifically, each of the cell tabs 2 at least includes a vertical section 21 and a horizontal section 22, the top of the vertical section 21 is connected to the cell 1, and the bottom of the vertical section passes through the electric conductor substrate 4 and the electric conductor 3 to be electrically connected to the horizontal section 22 in the thermal insulation layer 5. This setting can increase with thermal insulation layer 5's area of contact, improves heat exchange efficiency, and realizes being connected with the electricity of electric conductor 3, and simple structure can assemble very conveniently moreover.

Preferably, the heat-conducting insulating layer 5 is heat-conducting silica gel or heat-conducting double-sided tape. According to the arrangement, the product is convenient to install, automatic production and product maintenance are facilitated, the functions of heat conduction, insulation and fixation can be achieved simultaneously, the size of the equipment can be effectively reduced, and the method is a favorable option for reducing the equipment cost.

Preferably, a heat-conducting silicone grease or a heat-conducting sealant is disposed between the heat-conducting insulating layer 5 and the electric conductor substrate 4 and between the heat-conducting insulating layer 5 and the heat dissipation module 6. This setting can fill the heat conduction insulation layer 5 and electric conductor substrate 4/the small clearance that exists between electric conductor 3 and between heat conduction insulation layer 5 and the 6 tops of radiating module to promote heat transfer area, improve the heat transfer effect.

The part of the utility model which is not described in detail is the prior art, so the utility model does not detail the part.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Although the terms of the battery cell 1, the battery cell tab 2, the electrical conductor 3, the electrical conductor substrate 4, the thermal conductive and insulating layer 5, the heat dissipation module 6, the vertical section 21, the horizontal section 22, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A conductive heat dissipation structure suitable for a multi-electric-core group is characterized by comprising a plurality of electric cores, an electric conductor substrate, a heat conduction insulating layer and a heat dissipation module; each battery cell is provided with a battery cell tab at the bottom, the battery cell tab is fixed at the top of the heat dissipation module through the electric conductor substrate, the heat conduction insulating layer is positioned between the electric conductor substrate and the heat dissipation module, and each battery cell tab is at least partially positioned in the heat conduction insulating layer; the electric cores are connected in series through electric conductors arranged in the electric conductor substrate.

2. The structure of claim 1, wherein each of the cell tabs comprises at least a vertical section and a horizontal section, the vertical section is connected to the cell at the top, and the bottom is electrically connected to the horizontal section in the thermally conductive insulating layer through the conductive substrate and the conductive body.

3. The structure of claim 1, wherein the heat dissipation module is at least one of passive heat dissipation or active heat dissipation.

4. The structure of claim 3, wherein the heat dissipation module is an air-cooled heat dissipation module or a water-cooled heat dissipation module, and at least one temperature sensor is disposed in the heat conduction insulating layer, and each temperature sensor is in communication with the air-cooled heat dissipation module or the water-cooled heat dissipation module.

5. The conductive heat dissipation structure suitable for multi-core pack as claimed in claim 3, wherein the heat dissipation module is an aluminum block or a copper block with fins.

6. The structure of any one of claims 1 to 5, wherein the heat conducting and insulating layer is a heat conducting silica gel or a heat conducting double-sided tape.

7. The structure of claim 6, wherein a heat-conducting silicone grease or a heat-conducting sealant is disposed between the heat-conducting insulating layer and the conductive substrate and between the heat-conducting insulating layer and the heat dissipation module.

8. The structure of claim 1, wherein the heat conducting insulating layer has through holes, the heat dissipating module has screw holes corresponding to the through holes, and the conductive body has counter bores corresponding to the through holes.

9. The structure of claim 2, wherein the bottom of the cell abuts against the substrate of the electrical conductor.