阅读说明：本技术 一种快速散热的电池包 (Quick radiating battery package ) 是由 周志武 罗玉文 廖丁华 李涛 章春元 胡磊 于 2019-09-05 设计创作，主要内容包括：本发明提供了一种快速散热的电池包,包括具有安装内腔的散热箱体和电池模组,所述电池模组设置在所述散热箱体的安装内腔中,所述电池模组包括电芯阵列,所述电芯阵列的端面、散热箱体的内侧面之间填充有绝缘导热层,所述散热箱体的外侧面设有散热片阵列,所述散热片阵列与所述电芯阵列的端面相对应设置。本发明的有益效果是：采用散热箱体,并优化电芯阵列的安装,使电芯阵列的热量可以通过绝缘导热层、散热片阵列进行快速散热和均热,提高了电池包的散热性能,绝缘导热层直接与电芯接触,能均衡每颗电芯的温度,减小电芯之间的温差。(The invention provides a quick-heat-dissipation battery pack which comprises a heat dissipation box body with an installation inner cavity and a battery module, wherein the battery module is arranged in the installation inner cavity of the heat dissipation box body, the battery module comprises a battery cell array, an insulating heat conduction layer is filled between the end surface of the battery cell array and the inner side surface of the heat dissipation box body, a heat dissipation fin array is arranged on the outer side surface of the heat dissipation box body, and the heat dissipation fin array is arranged corresponding to the end surface of the battery cell array. The invention has the beneficial effects that: adopt the heat dissipation box to optimize the installation of electric core array, make the heat of electric core array can carry out quick heat dissipation and soaking through insulating heat-conducting layer, fin array, improved the heat dispersion of battery package, insulating heat-conducting layer is direct to be contacted with electric core, can the temperature of balanced every electric core, reduces the difference in temperature between the electric core.)

1. The utility model provides a quick radiating battery package which characterized in that: the battery module is arranged in the installation inner cavity of the heat dissipation box body, the battery module comprises an electric core array, an insulating heat conduction layer is filled between the end face of the electric core array and the inner side face of the heat dissipation box body, a radiating fin array is arranged on the outer side face of the heat dissipation box body, and the radiating fin array is arranged corresponding to the end face of the electric core array.

2. The battery pack for rapid heat dissipation according to claim 1, wherein: the battery cell array comprises a first battery cell array and a second battery cell array which are symmetrically arranged, the anodes of the first battery cell array and the second battery cell array are located in the middle of the battery module, the cathodes of the first battery cell array and the second battery cell array are located at the two ends of the battery module respectively, the cathodes of the first battery cell array and the second battery cell array are attached to the inner side surface of the heat dissipation box body respectively, an insulating heat conduction layer is filled between the cathode of the first battery cell array and the inner side surface of the heat dissipation box body, an insulating heat conduction layer is filled between the cathode of the second battery cell array and the inner side surface of the heat dissipation box body, the heat dissipation fin arrays are arranged on the two sides of the heat dissipation box body respectively, and the heat dissipation fin arrays on the two sides correspond to the cathodes of the first battery cell array and the second.

3. The battery pack for rapid heat dissipation according to claim 2, wherein: the positive electrodes of the first battery cell array and the second battery cell array are welding ends.

4. The battery pack for rapid heat dissipation according to claim 1, wherein: the bottom of the heat dissipation box body is connected with a base, the top of the heat dissipation box body is connected with an upper cover, and the base and the upper cover enclose the installation inner cavity.

5. The battery pack for rapid heat dissipation according to claim 1, wherein: the heat radiating fin array is positioned on the same side, the height of the protrusion of the heat radiating fin array protruding out of the surface of the heat radiating box is high in the middle, and the two ends of the heat radiating fin array are distributed in a low mode.

6. The battery pack for rapid heat dissipation according to claim 1, wherein: the heat dissipation box body is an aluminum heat dissipation box body.

Technical Field

The invention relates to a battery pack, in particular to a battery pack capable of dissipating heat quickly.

Background

The heat that the battery package produced directly influences the performance and the life of battery package, generally solves the heat problem of battery package through the heat dissipation, and a good heat radiation structure can improve the life of battery greatly. Traditional air convection heat dissipation can't satisfy the demand that the high rate was discharged, and the battery package is when high rate charge-discharge, and the heat that produces is higher than the heat that the air was taken away far away to lead to the temperature of battery package to continuously rise.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a battery pack capable of quickly dissipating heat.

The invention provides a quick-heat-dissipation battery pack which comprises a heat dissipation box body with an installation inner cavity and a battery module, wherein the battery module is arranged in the installation inner cavity of the heat dissipation box body, the battery module comprises a battery cell array, an insulating heat conduction layer is filled between the end surface of the battery cell array and the inner side surface of the heat dissipation box body, a heat dissipation fin array is arranged on the outer side surface of the heat dissipation box body, and the heat dissipation fin array is arranged corresponding to the end surface of the battery cell array.

As a further improvement of the invention, the cell array comprises a first cell array and a second cell array which are symmetrically arranged, the positive electrodes of the first battery cell array and the second battery cell array are both positioned in the middle of the battery module, the cathodes of the first battery cell array and the second battery cell array are respectively positioned at two ends of the battery module, the cathodes of the first battery cell array and the second battery cell array are respectively attached to the inner side surface of the heat dissipation box body, an insulating heat conduction layer is filled between the negative electrode of the first battery cell array and the inner side surface of the heat dissipation box body, an insulating heat conduction layer is filled between the negative electrode of the second battery cell array and the inner side surface of the heat dissipation box body, the radiating fin arrays are arranged on two sides of the radiating box body, and the radiating fin arrays on the two sides correspond to the cathodes of the first battery cell array and the second battery cell array respectively.

As a further improvement of the present invention, the positive electrodes of the first cell array and the second cell array are welding terminals.

As a further improvement of the invention, the bottom of the heat dissipation box body is connected with a base, the top of the heat dissipation box body is connected with an upper cover, and the base and the upper cover enclose the installation inner cavity.

As a further improvement of the invention, the heat radiating fin arrays on the same side have the middle height of the bulge protruding out of the surface of the heat radiating box and are distributed at the two ends of the bulge.

As a further improvement of the invention, the heat radiation box body is an aluminum heat radiation box body.

The invention has the beneficial effects that: through the above scheme, adopt the heat dissipation box to optimize the installation of electric core array, make the heat of electric core array can carry out quick heat dissipation and soaking through insulating heat-conducting layer, fin array, improved the heat dispersion of battery package, insulating heat-conducting layer is direct to contact with electric core, can balance the temperature of every electric core, reduces the difference in temperature between the electric core.

Drawings

Fig. 1 is an exploded view of a battery pack for rapid heat dissipation according to the present invention.

Fig. 2 is an assembly view of a battery pack with rapid heat dissipation according to the present invention.

Fig. 3 is a schematic cross-sectional view of a battery pack with rapid heat dissipation according to the present invention.

Fig. 4 is a schematic view of a battery module of a battery pack with rapid heat dissipation according to the present invention.

Detailed Description

The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 to 4, a battery pack capable of dissipating heat rapidly includes a heat dissipation case 1 having an installation cavity and a battery module 2, the battery module 2 is attached with a BMS (battery management system), the battery module 2 is disposed in the installation cavity of the heat dissipation case 1, the battery module 2 includes a cell array, an insulating and heat conducting layer 5 is filled between an end surface of the cell array and an inner side surface of the heat dissipation case 1, the insulating and heat conducting layer 5 is a heat conducting silica gel, a heat dissipation fin array 11 is disposed on the outer side surface of the heat dissipation case 1, the heat dissipation fin array 11 is disposed corresponding to the end surface of the cell array, during a high-rate discharge process of the battery pack, a large amount of heat is generated, the heat is transferred to the heat dissipation case 1 through air or a heat conducting material, the heat dissipation case 1 has good heat conductivity, and, the heat can be quickly and efficiently led out. Fill insulating heat-conducting layer 5 between battery module 2 and the heat dissipation box 1, the heat high efficiency that makes the electricity core produce transmits the heat dissipation box, can also equalize the heat of every electricity core simultaneously, reduces the temperature difference between every electricity core, improves the life of whole battery package.

As shown in fig. 1 to 4, the cell array includes a first cell array 21 and a second cell array 22 that are symmetrically arranged, anodes 10 of the first cell array 21 and the second cell array 22 are located in the middle of the battery module 2, cathodes 20 of the first cell array 21 and the second cell array 22 are located at two ends of the battery module 2, respectively, the cathodes 20 of the first cell array 21 and the second cell array 22 are attached to an inner side surface of the heat dissipation case 1, an insulating heat conduction layer 5 is filled between the cathode 20 of the first cell array 21 and the inner side surface of the heat dissipation case 1, an insulating heat conduction layer 5 is filled between the cathode 20 of the second cell array 22 and the inner side surface of the heat dissipation case 1, the heat dissipation case 1 is provided with the heat dissipation fin arrays 11 at two sides, and the heat dissipation fin arrays 11 at two sides are respectively connected to the first cell array 21, and the heat dissipation case 22, The negative electrode 20 of the second cell array 22 corresponds. Adopt the negative pole 20 of first electric core array 21, second electric core array 22 respectively with the medial surface of heat dissipation box 1 laminates mutually and dispels the heat, is favorable to improving heat radiating area, improves the radiating efficiency, can the temperature of balanced every electric core, reduces the difference in temperature between the electric core.

As shown in fig. 1 to 4, the positive electrodes 10 of the first cell array 21 and the second cell array 22 are welding terminals.

As shown in fig. 1 to 4, the bottom of the heat dissipation box 1 is connected with a base 3, the top of the heat dissipation box 1 is connected with an upper cover 4, and the base 3 and the upper cover 4 enclose the installation inner cavity.

As shown in fig. 1 to 4, the protruding height of the heat dissipation fin array 11 protruding from the surface of the heat dissipation case 1 is higher in the middle, and the two ends are distributed lower.

As shown in fig. 1 to 4, the heat dissipation box 1 is an aluminum heat dissipation box made of aluminum profile, and has good thermal conductivity.

As shown in fig. 1 to 4, the positive electrodes 10 of all the cells of the battery module 2 are fixed in one direction and welded (because the cells are welded in only one direction, the negative electrode end can be separated for independent heat dissipation); the anodes 10 of the first cell array 21 and the second cell array 22 are fixed towards the middle, the cathodes 20 of the first cell array 21 and the second cell array 22 are fixed towards the heat dissipation box 1, and heat conducting glue is applied between the cathodes 20 of the first cell array 21 and the second cell array 22 and the heat dissipation box 1 to dissipate heat.

According to the battery pack capable of quickly dissipating heat provided by the invention, heat can be transferred to the heat dissipation box body 1 from the battery core to the heat dissipation box body 1 made of the aluminum profile through air or other heat conduction materials, and the heat dissipation plate arrays 11 are arranged on the two sides of the heat dissipation box body 1, so that the heat dissipation area is increased, and the heat can be efficiently diffused. The insulating heat conduction layer 5 is filled between the heat dissipation box body 1 and the battery cores, heat generated by each battery core can be balanced while heat is transferred, and therefore the temperature difference of each battery core is reduced, and the service life of the battery pack is prolonged.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.