CN215578809U

CN215578809U - Battery with a battery cell

Info

Publication number: CN215578809U
Application number: CN202122086642.6U
Authority: CN
Inventors: 杨强; 徐卫东; 张男
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a battery, which comprises a shell, a battery cell module and a battery pack, wherein the battery cell module is arranged in the shell and comprises a mounting bracket and at least one battery cell arranged on the mounting bracket, the battery cell module is electrically connected with the battery cell, and the battery cell module and the battery cell are arranged at intervals. According to the battery provided by the embodiment of the utility model, the BMS and the battery cell module are arranged at intervals, so that on one hand, the heat dissipation of the BMS is facilitated, and the heat dissipation efficiency and the heat dissipation effect of the BMS are improved; on the other hand, can prevent that the heat transfer of BMS spare from to electric core to do benefit to the job stabilization nature who guarantees electric core, improved security, life and the radiating effect of battery.

Description

Battery with a battery cell

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery.

Background

In the related art, batteries such as PACK batteries have the advantages of high energy density, high power density, high cycle number, long storage time, and the like, and are generally used in electric vehicles, mobile devices, or electric tools. The battery can include electric core and BMS spare, and how to set up the position of BMS spare and guarantee the security and the radiating effect of battery has become the problem that awaits a urgent need to be solved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a battery with good heat dissipation and safety.

A battery according to an embodiment of the present invention includes: a housing; the battery cell module is arranged in the shell and comprises a mounting support and at least one battery cell and a battery pack, wherein the battery cell module is arranged in the shell and comprises a mounting support and at least one battery cell and battery pack, the battery pack is electrically connected with the battery cell, and the battery pack is arranged at intervals between the battery cell and the battery pack.

According to the battery provided by the embodiment of the utility model, the BMS and the battery cell module are arranged at intervals, so that on one hand, the heat dissipation of the BMS is facilitated, and the heat dissipation efficiency and the heat dissipation effect of the BMS are improved; on the other hand, can prevent that the heat transfer of BMS spare from to electric core to do benefit to the job stabilization nature who guarantees electric core, improved security, life and the radiating effect of battery.

In some embodiments, a support part is provided on the mounting bracket, and the BMS part is supported on the support part such that the BMS part and the battery cell are spaced apart from each other.

In some embodiments, the support part is a plurality of support parts provided at the bottom of the BMS member to be spaced apart from each other.

In some embodiments, the support post has a receiving hole formed thereon; the battery further includes a fastener passing through the BMS member and fitted in the receiving hole.

In some embodiments, the support portion is a columnar structure.

In some embodiments, the cell is a plurality; the mounting bracket comprises two sub-brackets, and the plurality of battery cells are positioned between the two sub-brackets.

In some embodiments, a plurality of mounting holes are respectively formed on the surfaces of the two sub-brackets, which are opposite to each other, and two ends of each battery cell are correspondingly inserted into the corresponding mounting holes of the two sub-brackets.

In some embodiments, an avoidance gap is formed on one of the mounting bracket and the housing, and a guide portion is provided on the other of the mounting bracket and the housing, and the avoidance gap is used for avoiding the guide portion.

In some embodiments, the avoidance gap is located between two adjacent battery cells.

In some embodiments, the housing comprises a first housing; and a second case detachably connected to the first case, a receiving space is defined between the second case and the first case, the battery cell module and the BMS member are both disposed in the receiving space, and the guide is disposed on at least one of the second case and the first case.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a battery according to an embodiment of the present invention;

FIG. 2 is an exploded view of a battery at an angle according to an embodiment of the present invention;

fig. 3 is an exploded view of a battery at another angle according to an embodiment of the present invention;

fig. 4 is an exploded view of a cell module according to an embodiment of the present invention.

Reference numerals:

a battery 100;

a housing 10; a guide part 11; a first housing 12; a second housing 13; an accommodating space 14;

a cell module 20; a mounting bracket 21; a sub-mount 211; the mounting holes 211 a; avoiding the gap 212;

a cell 22; an avoidance port 23; a support portion 24; a receiving hole 241;

the BMS device 30.

Detailed Description

Embodiments of the present invention will be described in detail below, and the embodiments described with reference to the drawings are exemplary.

A BATTERY 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 4, and includes a case 10, a cell module 20, and a BMS device 30(BATTERY management system ), where the BMS device 30 may be used to control the operation of the cell module 20, so as to improve the utilization rate and the service life of the BATTERY 100.

Specifically, as shown in fig. 1 to fig. 4, the battery cell module 20 is disposed in the casing 10, the battery cell module 20 includes a mounting bracket 21 and at least one battery cell 22 mounted on the mounting bracket 21, the BMS device 30 is electrically connected to the battery cell 22, and the BMS device 30 is spaced apart from the battery cell 22.

When the BMS part 30 works, the heat can be generated by the BMS part 30, so that the temperature of the BMS part 30 is increased, the heat dissipation of the BMS part 30 can be facilitated through the arrangement mode of the BMS part 30 and the battery cell 22 at intervals, meanwhile, the heat transmission of the BMS part 30 to the battery cell 22 can be avoided, the influence of the heat of the battery cell module 20 is prevented, the service life of the battery cell 22 is prolonged, the safety of the battery cell 22 is enhanced, and the safety of the battery 100 is improved.

According to the battery 100 of the embodiment of the utility model, the BMS device 30 and the battery cell module 20 are arranged at intervals, so that on one hand, the heat dissipation of the BMS device 30 can be facilitated, and the heat dissipation efficiency and the heat dissipation effect of the BMS device 30 are improved; on the other hand, the heat of the BMS device 30 may be prevented from being transferred to the battery cell 22, so as to facilitate ensuring the working stability of the battery cell 22, and improve the safety, the service life and the heat dissipation effect of the battery 100.

Further, referring to fig. 2, at least one support portion 24 is provided on the mounting bracket 21, and the support portion 24 is used for supporting the BMS 30 such that the BMS 30 is spaced apart from the battery cell 22. Thus, on the one hand, the support part 24 may serve to support the BMS device 30 so as to facilitate the mounting connection of the BMS device 30 to the mounting bracket 21; on the other hand, the support part 24 may space the BMS device 30 from the battery cell 22, so as to facilitate a heat dissipation effect of the BMS device 30 and prevent the BMS device 30 from transferring heat to the battery cell 22.

Further, as shown in fig. 4, the support part 24 may be plural, and a plurality of support parts 24 are provided at the bottom of the BMS member 30 to be spaced apart from each other. Thus, the support parts 24 may support the BMS member 30 at a plurality of positions to improve stability of supporting the BMS member 30, and at the same time, when a single support part 24 malfunctions, it is still possible to ensure that the BMS member 30 is spaced apart from the battery cell 22 by other support parts 24 to enhance heat dissipation effect and safety of the battery 100. For example, a plurality of supporting parts 24 may be spaced at the edge of the bottom of the BMS device 30 to further improve the reliability of the mounting of the BMS device 30.

In some embodiments, as shown in fig. 2, the supporting portion 24 may have a receiving hole 241 formed thereon, for example, the receiving hole 241 may be a circular hole, so as to facilitate the processing and forming of the receiving hole 241 and reduce the processing difficulty. The battery 100 may further include a fastener passing through the BMS member 30 and fitted in the receiving hole 241, the fastener passing through the BMS member 30 and extending into the receiving hole 241 after the fastener passing through the BMS member 30 to achieve the fitting of the fastener with the receiving hole 241, thereby fixing the BMS member 30 on the support part 24, by which the support part 24 can support and fix the BMS member 30, prevent the BMS member 30 from being separated from the battery cell module 20, enhance the connection stability between the BMS member 30 and the battery cell 22, and enhance the structural strength of the battery 100. For example, the fastening member may be plural, and the plural fastening members may be spaced apart at the edge of the BMS device 30 to further improve the reliability of the mounting of the BMS device 30.

For example, the supporting portion 24 may have a cylindrical structure to facilitate processing, and at the same time, to ensure effective spacing between the BMS device 30 and the battery cell 22. Of course, the support portion 24 may be a support block, a support boss, or the like, and is not limited again.

In some embodiments, as shown in fig. 4, an escape opening 23 may be formed on the cell module 20. The BMS member 30 is provided at the escape opening 23. For example, one side that battery cell module 20 can be formed with dodges mouthful 23 to construct the stair structure, from this, establish BMS spare 30 in dodging mouthful 23 department, can save outside installation space, be convenient for reduce battery cell module 20's overall structure size.

In some embodiments, as shown in fig. 2 to fig. 4, the BMS 30 may be mounted on the top of the mounting bracket 21 (e.g., the upper end as shown in fig. 2), so as to shorten the distance between the BMS 30 and the battery cell 22, thereby facilitating the electrical connection between the BMS 30 and the battery cell 22, and the BMS 30 is disposed on the top of the mounting bracket 21, thereby facilitating the direct mounting by a worker, reducing the difficulty of assembly, improving the production efficiency, and simultaneously facilitating the fixing and supporting of the BMS 30 by the mounting bracket 21, avoiding the problem of the BMS 30 falling off, and enhancing the connection stability between the BMS 30 and the mounting bracket 21.

In some embodiments, in combination with fig. 2 to 4, the battery cell 22 may be multiple. In the description of the present invention, "a plurality" means two or more. The mounting bracket 21 may include two sub-brackets 211, for example, the two sub-brackets 211 may be disposed at intervals in the first direction, and the plurality of battery cells 22 are located between the two sub-brackets 211, so as to ensure the reliability of the installation of the battery cells 22, and at the same time, facilitate the heat dissipation of the battery cells 22.

Further, with reference to fig. 2 to 4, a plurality of mounting holes 211a are respectively formed on the surfaces of the two sub-brackets 211 opposite to each other, and two ends of each battery cell 22 are respectively inserted through the corresponding mounting holes 211a of the two sub-brackets 211 in a one-to-one correspondence manner. Therefore, the two ends of the battery cells 22 may respectively extend out of the two sub-supports 211, so as to facilitate connection between multiple battery cells 22, for example, multiple battery cells 22 may be connected in series, or multiple battery cells 22 may be connected in parallel or in a mixed manner, and the battery 100 may be a PACK battery.

In some embodiments, as shown in fig. 2 to 4, an avoiding notch 212 is formed on one of the mounting bracket 21 and the housing 10, and a guide portion 11 is provided on the other of the mounting bracket 21 and the housing 10, and the avoiding notch 212 is used for avoiding the guide portion 11. For example: set up on installing support 21 and dodge breach 212, and set up on casing 10 and dodge the relative guide part 11 of breach 212, electric core module 20 when installing with casing 10, dodge breach 212 and guide part 11 and can mutually support, can be in order to carry on spacingly to electric core module 20, the installation of electric core module 20 and casing 10 of being convenient for avoids electric core module 20 to rock in casing 10 is inside, increases electric core module 20 at the inside stability of casing 10. Meanwhile, the cooperation of the guide part 11 and the avoiding notch 212 can play a role of guiding. In addition, the avoiding notch 212 can also accommodate other components inside the casing 10 to improve the utilization ratio of the internal space of the casing 10. Of course, the guide portion 11 may be provided on the mounting bracket 21, and the relief notch 212 may be provided on the housing 10 so as to face the guide portion 11.

In some embodiments, as shown in fig. 2, the relief notch 212 may be located between two adjacent cells 22. A certain space is formed between the adjacent battery cells 22, and after the battery cells 22 are connected with the mounting bracket 21, the mounting bracket 21 between the adjacent battery cells 22 may be provided with an avoidance gap 212. From this, set up the breach 212 of dodging on installing support 21 between two adjacent electric cores 22 to make guide part 11 can be sufficient with the breach 212 adaptation of dodging, improve the utilization ratio to electric core module 20 space, with the compactness that increases battery 100 inner structure.

Further, as shown in fig. 1 to 3, the housing 10 may include a first housing 12 and a second housing 13, the second housing 13 and the first housing 12 being detachably coupled, the second housing 13 and the first housing 12 defining a receiving space 14 therebetween, the cell module 20 and the BMS member 30 being disposed in the receiving space 14, and the guide 11 being disposed on at least one of the second housing 13 and the first housing 12. From this, through setting up demountable installation's first casing 12 and second casing 13 to and be located the guide part 11 on casing 10, can be convenient for install inside casing 10 with battery core module 20, and two casings 10 are located the both ends of electric core 22 and are installed with battery core module 20, increase the stability of battery 100 inner structure, in order to increase casing 10 to the support of battery core module 20.

Other configurations and the like and operations of the battery 100 according to an embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for 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 construed as limiting the present invention. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery, comprising:

a housing;

the battery cell module is arranged in the shell and comprises a mounting bracket and at least one battery cell arranged on the mounting bracket,

the battery pack comprises a battery cell, a battery pack body and a battery pack body, wherein the battery cell is electrically connected with the battery cell, and the battery pack body is arranged at intervals with the battery cell.

2. The battery of claim 1, wherein a support portion is provided on the mounting bracket, and the BMS member is supported on the support portion such that the BMS member and the cell are spaced apart from each other.

3. The battery according to claim 2, wherein the supporting part is a plurality of supporting parts provided at the bottom of the BMS part to be spaced apart from each other.

4. The battery according to claim 3, wherein the support portion is formed with an accommodation hole;

the battery further includes a fastener passing through the BMS member and fitted in the receiving hole.

5. The battery of claim 2, wherein the support is a columnar structure.

6. The battery of any of claims 1-5, wherein the plurality of cells are provided, and wherein the mounting bracket comprises two sub-brackets, and wherein the plurality of cells are located between the two sub-brackets.

7. The battery of claim 6, wherein a plurality of mounting holes are respectively formed on the surfaces of the two sub-brackets, which are opposite to each other, and two ends of each battery cell are respectively inserted into the corresponding mounting holes of the two sub-brackets in a one-to-one correspondence manner.

8. The battery of claim 7, wherein an avoidance notch is formed in one of the mounting bracket and the housing, and a guide portion is provided in the other of the mounting bracket and the housing, the avoidance notch being configured to avoid the guide portion.

9. The battery of claim 8, wherein the relief notch is located between two adjacent cells.

10. The battery of claim 8, wherein the housing comprises:

a first housing; and

the battery cell module and the BMS component are arranged in the accommodating space, and the guide part is arranged on at least one of the second shell and the first shell.