CN214313329U

CN214313329U - Battery module easy to dissipate heat

Info

Publication number: CN214313329U
Application number: CN202120310676.6U
Authority: CN
Inventors: 邓桂超; 陈春雷
Original assignee: Shenzhen Yilite New Energy Co ltd
Current assignee: Shenzhen Yilite New Energy Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-09-28
Anticipated expiration: 2031-02-03

Abstract

The utility model provides an easy-heat-dissipation battery module, which comprises a pair of oppositely arranged bus bars and a plurality of battery cores arranged between the pair of bus bars; the pair of bus bars are respectively provided with a plurality of fixing grooves which extend towards each other and are in one-to-one correspondence, and the pair of fixing grooves which are correspondingly arranged are respectively used for fixing two ends of one battery cell; the radiating pipes are arranged between the fixing grooves of the pair of bus plates, two ends of each radiating pipe penetrate through the corresponding bus plate, and a plurality of vent holes are formed in the pipe walls of the radiating pipes; the cooling tube is used for supplying the circulation of air from a plurality of electric cores absorption heat to carry out the heat exchange circulation with the external world. The utility model provides a pair of battery module easily dispels heat for absorb the thermal air that the electric core in the fixed slot produced around can in time discharge, promoted the inside circulation of air of battery module, the heat that has avoided electric core to produce in the battery module accumulates, and then has reduced the safety risk because of the temperature risees and produces.

Description

Battery module easy to dissipate heat

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lithium ion battery field especially relates to an easy heat dissipation battery module.

[ background of the invention ]

The battery module is an indispensable part in an electric vehicle power system, and the stability and reliability of the structure of the battery module are directly related to and affect the performance and the service life of the whole battery system, so the design of the battery module becomes a very important part in the development process of the electric vehicle. At present, in order to meet the use requirement, a plurality of parallel single battery packs are often required to be connected in series to form a battery module with larger battery capacity. However, since the plurality of unit batteries are placed in a narrow space, the generated heat cannot be discharged in time, and thus, a safety risk due to a temperature increase occurs.

In view of the above, it is desirable to provide a battery module with easy heat dissipation to overcome the disadvantages of the prior art.

[ Utility model ] content

The utility model aims at providing an easy heat dissipation battery module aims at solving the unable timely exhaust problem of current battery module heat, has reduced the safety risk that the battery module leads to because of the temperature risees.

In order to achieve the above object, the present invention provides an easy-to-dissipate battery module, which includes a pair of oppositely disposed bus bars and a plurality of battery cells disposed between the pair of bus bars; the pair of bus bars are respectively provided with a plurality of fixing grooves which extend towards each other and are in one-to-one correspondence, and the pair of fixing grooves which are correspondingly arranged are respectively used for fixing two ends of one battery cell; the pair of bus plates are provided with a radiating pipe between the plurality of fixing grooves, two ends of the radiating pipe respectively penetrate through the pair of bus plates, and the pipe wall of the radiating pipe is provided with a plurality of vent holes; the cooling tube is used for supplying air circulation from the plurality of battery cores absorb heat, so that heat exchange circulation is carried out between the cooling tube and the outside.

In a preferred embodiment, one ends of the pair of bus bars, which are adjacent to each other, of the pair of fixing grooves are spaced apart from each other.

In a preferred embodiment, the fixing groove of the manifold plate is disposed around the radiating pipe.

In a preferred embodiment, a through hole for the positive electrode of the battery cell to pass through is formed at the bottom of the fixing groove fixedly connected to the positive electrode of the battery cell; the diameter of the perforation is consistent with the diameter of the positive electrode of the battery core.

In a preferred embodiment, the bus plate is rectangular, and a perpendicular projection of the radiating pipe relative to the bus plate falls on a geometric center of the bus plate.

In a preferred embodiment, adjacent battery modules easy to dissipate heat are arranged in series, and the openings of the adjacent heat dissipation pipes are arranged flush.

In a preferred embodiment, the plurality of vent holes comprise a plurality of rows of vent hole groups which are distributed along the cross section of the radiating pipe at equal angles; the vent holes of each row of vent hole groups are arranged at intervals along the length direction of the radiating pipe; the vent holes of the adjacent vent hole groups are arranged in a staggered mode.

In a preferred embodiment, the fixing groove is cylindrical, and the battery cell is a cylindrical battery.

The utility model provides a pair of battery module easily dispels heat, through set up the cooling tube between a pair of cylinder manifold, and set up a plurality of air vents at the pipe wall of cooling tube to make the thermal air of electric core production in the fixed slot on every side of absorption can in time discharge, promoted the inside circulation of air of battery module, the heat that electric core produced in the battery module has been avoided and has been accumulated, and then has reduced the safety risk because of the temperature risees and produces.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of a battery module easy to dissipate heat provided by the present invention;

fig. 2 is a perspective view of a hidden part of the easy-heat-dissipation battery module shown in fig. 1;

fig. 3 is a stacked structure view of the battery modules with two easy heat dissipation shown in fig. 1.

Reference numbers in the figures: 100. the battery module is easy to dissipate heat; 200. an electric core; 10. a bus bar; 20. fixing grooves; 21. perforating; 30. a radiating pipe; 31. and (4) a vent hole.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The embodiment of the utility model provides an in, provide an easy heat dissipation battery module 100 for promote battery module's heat dispersion, avoid the inside heat accumulation of battery module and lead to the high temperature.

As shown in fig. 1 to 3, the battery module 100 with easy heat dissipation includes a pair of bus plates 10 disposed opposite to each other, and a plurality of battery cells 200 disposed between the pair of bus plates 10. In this embodiment, the bus bar 10 is rectangular and made of copper plate or other metal materials, so as to converge the electrodes at the same end of the plurality of battery cells 200, thereby forming the total positive electrode and the total negative electrode of the battery module. It will be appreciated that for ease of installation, the perpendicular projections of the pair of bus plates 10 coincide.

The pair of bus bars 10 are respectively provided with a plurality of fixing grooves 20 which extend towards each other and are in one-to-one correspondence, and the pair of fixing grooves 20 which are correspondingly arranged are respectively used for fixing two ends of one battery cell 200. In this embodiment, the fixing groove 20 is cylindrical, and the battery cell 200 is a cylindrical battery. Specifically, each bus bar 10 is provided with a plurality of fixing grooves 20 of the same number, and the fixing grooves 20 are arranged around the geometric center of the bus bar 10. One fixing groove 20 of one bus bar 10 has and corresponds to only one fixing groove 20 of the other bus bar 10, and thus, openings of a pair of the fixing grooves 20 corresponding to each other face each other and central axes thereof are positioned on the same line, thereby fixing both ends of one battery cell 200. Further, a pair of fixed slot 20 that the correspondence of a pair of cylinder manifold 10 set up is close to each other one end interval sets up, and the middle part of electric core 200 is not attached fixedly by the lateral wall of fixed slot 20 promptly to under the prerequisite of guaranteeing electric core 200 fixed strength, the area of contact of electric core 200 with the air has been promoted.

The bottom of the fixing groove 20 fixedly connected to the positive electrode of the battery cell 200 is provided with a perforation 21 through which the positive electrode of the battery cell 200 passes, and the diameter of the perforation 21 is consistent with that of the positive pole of the battery cell 200, so that the part of the battery cell 200, which is located at the positive pole and is removed from the positive pole, is attached to the bottom of the fixing groove 20, and a gap is prevented from being left between the bottom of the battery cell 200 and the bottom of the fixing groove 20, thereby affecting the stability of fixing the battery cell 200.

In the embodiment of the present invention, as shown in fig. 2, a pair of bus plates 10 are provided with a heat dissipation pipe 30 between a plurality of fixing grooves 20. Wherein, the vertical projection of cooling tube 30 for cylinder manifold 10 falls on the geometric center of cylinder manifold 10, and the fixed slot 20 of cylinder manifold 10 surrounds the setting in cooling tube 30 to it is almost the same to make the distance of cooling tube 30 a plurality of electric cores 200 relatively, and then has promoted the temperature equilibrium between a plurality of electric cores 200.

Specifically, both ends of the radiating pipe 30 penetrate the pair of bus plates 10, respectively, so that a through hole is formed in the pair of bus plates 10. A plurality of air holes 31 are formed on the wall of the radiating pipe 30 so that the air between the fixing grooves 20 can be communicated with the outside through the plurality of air holes 31. When the battery module is operated, the heat dissipation pipe 30 is used for circulating air for absorbing heat from the plurality of battery cells 200, thereby performing a heat exchange cycle with the outside. Wherein, the plurality of air holes 31 comprise a plurality of rows of air hole groups distributed along the cross section of the radiating pipe 30 at equal angles, that is, each row of air hole group comprises a plurality of air holes 31 arranged at intervals along the length direction of the radiating pipe 30, and the vertical projection of each row of air hole groups on the cross section of the radiating pipe 30 is distributed at equal angles and equal intervals; the vent holes 31 of the adjacent vent hole groups are arranged in a staggered manner, so that the vent holes 31 are uniformly distributed on the pipe wall of the radiating pipe 30, the radiating pipe 30 can exchange heat with all spaces between the pair of confluence plates 10, and the heat exchange range is improved.

Further, as shown in fig. 3, adjacent heat-dissipation facilitating battery modules 100 are arranged in series. When two easy-to-dissipate battery modules 100 are stacked, the openings of the adjacent heat dissipation pipes 30 are disposed flush. Therefore, even if a plurality of easily heat-dissipating battery modules 100 are stacked, the plurality of heat-dissipating pipes 30 are all communicated with each other, thereby securing heat-dissipating performance.

To sum up, the utility model provides a pair of battery module 100 easily dispels heat through set up cooling tube 30 between a pair of cylinder manifold 10, and offers a plurality of air vents 31 at the pipe wall of cooling tube 30 to make the thermal air that absorbs the electricity core 200 in the fixed slot 20 on every side and produce can in time discharge, promoted the inside circulation of air of battery module, avoided the heat that electricity core 200 produced in the battery module to accumulate, and then reduced the safety risk because of the temperature risees and produces.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. An easy-heat-dissipation battery module is characterized by comprising a pair of oppositely-arranged bus plates and a plurality of battery cells arranged between the pair of bus plates; the pair of bus bars are respectively provided with a plurality of fixing grooves which extend towards each other and are in one-to-one correspondence, and the pair of fixing grooves which are correspondingly arranged are respectively used for fixing two ends of one battery cell; the pair of bus plates are provided with a radiating pipe between the plurality of fixing grooves, two ends of the radiating pipe respectively penetrate through the pair of bus plates, and the pipe wall of the radiating pipe is provided with a plurality of vent holes; the cooling tube is used for supplying air circulation from the plurality of battery cores absorb heat, so that heat exchange circulation is carried out between the cooling tube and the outside.

2. The battery module as claimed in claim 1, wherein the pair of fixing grooves of the pair of bus plates are spaced apart from each other at an end thereof adjacent to each other.

3. The battery module as claimed in claim 2, wherein the fixing grooves of the bus bar are disposed around the heat pipe.

4. The battery module easy to dissipate heat of claim 1, wherein a through hole for the positive electrode of the battery cell to pass through is formed at the bottom of the fixing groove fixedly connected to the positive electrode of the battery cell; the diameter of the perforation is consistent with the diameter of the positive electrode of the battery core.

5. The battery module as recited in claim 1, wherein the manifold plate is rectangular, and a vertical projection of the heat pipe with respect to the manifold plate falls at a geometric center of the manifold plate.

6. The easy-heat-dissipation battery module as recited in claim 5, wherein adjacent easy-heat-dissipation battery modules are arranged in series, and the openings of adjacent heat-dissipation pipes are arranged flush.

7. The easy-heat-dissipation battery module as recited in claim 5, wherein the plurality of ventilation holes comprises a plurality of rows of ventilation hole sets distributed at equal angles along the cross section of the heat-dissipation pipe; the vent holes of each row of vent hole groups are arranged at intervals along the length direction of the radiating pipe; the vent holes of the adjacent vent hole groups are arranged in a staggered mode.

8. The battery module easy to dissipate heat of claim 1, wherein the fixing groove is cylindrical, and the battery cell is a cylindrical battery.