CN218569094U

CN218569094U - Battery pack and energy storage device

Info

Publication number: CN218569094U
Application number: CN202223214757.XU
Authority: CN
Inventors: 吴纯华; 邓长春; 谢刚; 金佺良; 於洪将
Original assignee: Jiangsu Zenergy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenergy Battery Technologies Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-03
Anticipated expiration: 2032-11-30

Abstract

The utility model provides a battery package and energy memory relates to battery technical field. The battery pack includes a frame body, a support assembly, and a BMS assembly. A supporting beam is arranged in the frame body. The supporting assembly comprises a supporting piece and a connecting piece; one end of the supporting piece is connected with the supporting beam, the BMS component is arranged at the other end of the supporting piece, and a gap is reserved between the BMS component and the supporting beam; the connector penetrates through the BMS assembly to be connected with the support member to clamp the BMS assembly together with the support member. The utility model provides an energy memory has adopted foretell battery package. The utility model provides a battery package and energy memory can improve among the prior art BMS occupation space and be unfavorable for the space utilization greatly to and the higher technical problem of material cost.

Description

Battery pack and energy storage device

Technical Field

The utility model relates to a battery technology field particularly, relates to a battery package and energy memory.

Background

Due to the increasing deterioration of the environment and the enhancement of environmental awareness of people, the market demand of new energy electric automobiles is greatly increased. The battery pack is used as a core part of a new energy electric automobile, requirements of automobile enterprises on the battery pack are higher and higher, requirements on the size, the dimension and the weight of the battery pack are particularly higher, and the energy density of the battery pack is improved by improving the space utilization rate. The BMS (battery management system) is a main control module for power battery management, and can monitor and collect the state parameters of the battery in real time and analyze and calculate the state parameters.

What common BMS fixed mode adopted is that the panel beating support is fixed, and this support needs to adopt stamping forming, need weld the double-screw bolt that is used for fixed BMS on it simultaneously to open the pencil fixed orifices. The bracket fixing mode needs more processing procedures and complex assembly, and needs more materials and occupies more space.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery pack, it can improve among the prior art BMS occupation space and be unfavorable for the space utilization greatly to and the higher technical problem of material cost.

The utility model discloses an aim still includes, provides an energy memory, and it can improve among the prior art BMS occupation space and be unfavorable for the space utilization greatly to and the higher technical problem of material cost.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides a battery pack, which comprises a frame body, a support component and a BMS component;

a support beam is arranged in the frame body;

the support assembly comprises a support member and a connecting member; one end of the support member is connected to the support beam, the BMS assembly is arranged at the other end of the support member, and a space is formed between the BMS assembly and the support beam; the connector is connected with the support member through the BMS assembly to clamp the BMS assembly together with the support member.

The utility model provides a battery package includes for prior art's beneficial effect:

in the battery pack, the support member in the support assembly is directly supported on the BMS assembly, and then the stable connection between the BMS assembly and the support member is realized through the connection member, so that the stable assembly of the BMS assembly can be realized; the existing metal plate support can be omitted, so that the material cost can be reduced, the assembly difficulty can be reduced, and the assembly cost can be reduced. Meanwhile, a certain interval is formed between the BMS module and the support beam to facilitate the arrangement of other components in the battery pack through the interval, and the space utilization rate in the battery pack can be improved. Therefore, this battery package can improve among the prior art BMS occupation space greatly and be unfavorable for space utilization and the higher technical problem of material cost.

Optionally, the support member has a first fitting hole formed at an end thereof adjacent to the BMS module, and the connector passes through the BMS module to be detachably coupled to the first fitting hole.

Optionally, the first assembling hole is a threaded hole, and an external thread adapted to the thread in the first assembling hole is arranged on the connecting piece.

Optionally, the depth of the first assembling hole is 6mm-10mm.

Optionally, a connecting part is arranged at one end of the supporting part close to the supporting beam; the supporting beam is provided with a second assembling hole; the connecting portion is detachably matched with the second assembling hole.

Optionally, the outer periphery of the connecting part is provided with an external thread; the supporting component further comprises a matching piece, the matching piece is in threaded fit with the connecting portion, and the matching piece and the supporting piece clamp the supporting beam together.

Optionally, the length of the connecting portion is 6mm to 10mm.

Optionally, an installation support lug is arranged on the outer side of the BMS module, and a through hole is formed in the installation support lug; the connecting piece passes the through-hole with support piece is connected, just the connecting piece with support piece centre gripping jointly the installation journal stirrup.

Optionally, the number of the support assemblies is multiple, and the plurality of support assemblies are arranged around the BMS assembly at intervals.

An energy storage device includes a battery pack. The battery pack comprises a frame body, a support assembly and a BMS assembly;

a support beam is arranged in the frame body;

the support assembly comprises a support member and a connecting member; one end of the support member is connected to the support beam, the BMS assembly is arranged at the other end of the support member, and a space is formed between the BMS assembly and the support beam; the connector is connected with the support member through the BMS module to clamp the BMS module together with the support member.

The utility model provides an energy memory has adopted foretell battery package, and this energy memory is the same for prior art's beneficial effect with the battery package that the aforesaid provided for beneficial effect, no longer gives unnecessary details here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for 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 that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a partial structural schematic view of a battery pack provided in a first embodiment of the present application;

fig. 2 is an exploded schematic view of a partial structure of a battery pack provided in a first embodiment of the present application;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a sectional view of a partial structure of a battery pack provided in the first embodiment of the present application.

Icon: 10-a battery pack; 100-a frame body; 110-a support beam; 111-a second assembly hole; 200-a support assembly; 210-a support; 211-a first assembly aperture; 212-a connecting portion; 213-a counterpart; 220-a connector; 300-a BMS component; 310-mounting ears; 311-a mounting part; 312-a support portion; 313-through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

First embodiment

Referring to fig. 1, the present embodiment provides a battery pack 10, wherein the battery pack 10 can be used as an energy storage device to store electric energy; moreover, the battery pack 10 can also be used as an energy supply device, and the battery pack 10 can be applied to electric equipment to output stored electric energy to the electric equipment so as to supply power to the electric equipment.

Generally, the Battery pack 10 generally includes a BMS (Battery Management System) for monitoring the operation of each component of the Battery pack 10 to ensure the stability of the Battery pack 10 as a whole. In the prior art, what common BMS fixed mode adopted is that the panel beating support is fixed, and this support needs to adopt stamping forming, need weld the double-screw bolt that is used for fixed BMS on it simultaneously to the pencil fixed orifices is restrainted in the trompil. The fixing mode of the bracket needs more processing procedures, and needs more materials and occupies more space.

In order to improve the above technical problems, in other words, in order to solve the technical problems that the space occupied by the BMS is large and the space utilization is not favorable and the material cost is high in the prior art, the battery pack 10 in the first embodiment of the present application is provided to achieve the effects of improving the space utilization rate in the battery pack 10 and reducing the material cost.

In the present embodiment, referring to fig. 1 and fig. 2, the battery pack 10 includes a frame 100, a support assembly 200, and a BMS assembly 300. It should be understood that the battery pack 10 further includes components such as a battery cell, a cover plate, a bottom protection plate, and a cooling structure, which are not described in detail herein. A support beam 110 is provided in the frame body 100, and the support beam 110 can provide a supporting function to the battery cell and the BMS module 300, etc., and ensure stable assembly of the internal structure of the battery pack 10. The support assembly 200 includes a support member 210 and a connection member 220; one end of the support member 210 is connected to the support beam 110, the BMS module 300 is mounted at the other end of the support member 210 with a space between the BMS module 300 and the support beam 110; the connector 220 is connected to the support member 210 through the BMS assembly 300 to clamp the BMS assembly 300 together with the support member 210.

In the battery pack 10, stable assembly of the BMS module 300 is accomplished by directly supporting the support member 210 of the support assembly 200 to the BMS module 300 and then stably connecting the BMS module 300 to the support member 210 through the connection member 220; the existing metal plate support can be omitted, so that the material cost can be reduced, the assembly difficulty can be reduced, and the assembly cost can be reduced. Meanwhile, a certain interval is formed between the BMS module 300 and the support beam 110 to facilitate the arrangement of other components in the battery pack 10 through the interval, and the space utilization in the battery pack 10 may be improved. Therefore, the battery pack 10 can solve the technical problems that the BMS in the prior art occupies a large space, is not favorable for space utilization and has high material cost.

It is worth noting that in some embodiments of the present application, the pipes for cooling in the battery pack 10 may be disposed in the gap between the BMS module 300 and the support beam 110, so that the space under the BMS module 300 may be fully utilized, and not only the material cost of the sheet metal bracket of the BMS module 300 may be saved, but also the arrangement design of the cooling pipes may be facilitated, thereby further achieving the purpose of saving the design cost and the material cost.

In assembling the BMS assembly 300, in some embodiments, the support member 210 may be first assembled to the support beam 110 and then the BMS assembly 300 may be positioned at an end of the support member 210 away from the support beam 110; the assembly of the BMS assembly 300 is completed by fixing the BMS assembly 300 to the support member 210 by the coupling members 220. In other embodiments, it is also possible to first position the BMS assembly 300 at the end of the support member 210 and then to couple the coupling member 220 to the support member 210 through the BMS assembly 300, i.e., it is possible to first assemble the support member 210, the BMS assembly 300 and the coupling member 220 and then to assemble the support member 210 to the support beam 110, and it is also possible to easily and efficiently assemble the BMS assembly 300 inside the frame 100.

Alternatively, referring to fig. 3 and 4 in combination, in some embodiments of the present embodiment, a first mounting hole 211 is formed at one end of the support member 210 near the BMS module 300, and the connection member 220 passes through the BMS module 300 and is detachably coupled to the first mounting hole 211. The coupling member 220 is fitted into the first fitting hole 211 by passing the coupling member 220 through the BMS module 300, and the coupling member 220 and the support member 210 can collectively hold the BMS module 300, thereby accomplishing the assembly of the BMS module 300.

It should be understood that in other embodiments of the present application, the first mounting holes 211 may be formed at the coupling members 220, and correspondingly, protrusions fitted into the first mounting holes 211 are formed at the ends of the support member 210 to be fitted into the BMS assembly 300, whereby the assembly of the BMS assembly 300 can be completed by the assembly of the protrusions and the first mounting holes 211. It is noted that in the case that the protrusions, fitted into the first mounting holes 211, are provided at the support 210, the positioning function can be provided to the BMS module 300 by the protrusions, and the protrusions can penetrate through the BMS module 300 during the assembly of the BMS module 300 to ensure that the BMS module 300 can be mounted in place.

Optionally, the first assembling hole 211 is a threaded hole, and the connecting member 220 is provided with an external thread adapted to the thread in the first assembling hole 211. The connection member 220 and the first assembly hole 211 are matched in a screw-thread matching manner, so that the connection member 220 and the first assembly hole 211 are not only conveniently matched, but also can provide a self-locking effect through an external thread on the connection member 220 and an internal thread in the first assembly hole 211, and the stability of the assembled BMS module 300 is ensured.

In some embodiments, the connecting member 220 may be formed directly using standard components such as M5 screws.

In this embodiment, the depth of the first assembling hole 211 ranges from 6mm to 10mm. In other words, the depth of the first fitting hole 211 may take 6mm, 7mm, 8mm, 9mm, 10mm, or the like. The depth of the first assembly hole 211 is set to be 6mm-10mm, so that the stability requirement of the connecting piece 220 and the first assembly hole 211 in the matching process can be met, and the problems that the strength of the supporting piece 210 is reduced and the manufacturing difficulty is high due to the fact that the first assembly hole 211 is too deep can be avoided.

It should be understood that in other embodiments of the present application, the first assembling hole 211 and the connecting member 220 may be assembled in other manners. For example, the connecting member 220 may be inserted into the first assembling hole 211 in a pluggable manner, that is, the arrangement of the screw thread in the first assembling hole 211 and the screw thread on the outer periphery of the connecting member 220 is eliminated; further, in the case that the connection member 220 and the first fitting hole 211 are detachably connected by means of a pluggable manner, the connection member 220 and the first fitting hole 211 may be fitted by means of interference fit to improve the connection stability between the connection member 220 and the support member 210, thereby ensuring the assembly stability of the BMS assembly 300.

In the present embodiment, in order to facilitate the matching between the supporting member 210 and the supporting beam 110, a connecting portion 212 is disposed at one end of the supporting member 210 close to the supporting beam 110; the support beam 110 is provided with a second assembling hole 111; the connecting portion 212 is detachably fitted with the second fitting hole 111. The second mounting holes 111 are formed in the support beam 110, and the second mounting holes 111 not only provide mounting positions for the support members 210, but also provide a positioning function to ensure that the support members 210 are precisely mounted inside the frame body 100, thereby improving the accuracy of the mounting positions of the BMS assembly 300.

In addition, the assembly mode between the connecting portion 212 and the assembly hole is simple, the manufacturing and forming are easy, and the manufacturing difficulty and the assembly difficulty can be reduced.

Optionally, in some embodiments, the outer circumference of the connecting portion 212 is provided with an external thread; the support assembly 200 further includes a fitting 213, the fitting 213 is threadedly engaged with the connecting portion 212, and the fitting 213 and the supporting member 210 together clamp the support beam 110. That is, the support assembly 200 integrally forms the male and female studs, and the support of the BMS assembly 300 is realized through the male and female studs, so that the assembly difficulty of the BMS assembly 300 can be simplified, and the male and female studs are low in cost, low in assembly difficulty, and high in assembly stability, and can satisfy the requirement of the stability of the BMS assembly 300.

Wherein the length of the connecting part 212 is 6mm-10mm. In other words, the length of the connection portion 212 may be 6mm, 7mm, 8mm, 9mm, 10mm, or the like. The length of the connecting part 212 is set to be 6mm-10mm, which not only ensures that the connecting part 212 has enough length to pass through the second assembly hole 111 to be conveniently matched with the fitting piece 213; in addition, it is possible to prevent the problem that the connection part 212 is too long, which affects the thickness of the battery pack 10.

Of course, in order to facilitate the assembly of the BMS module 300, the outer side of the BMS module 300 is provided with a mounting lug, which is provided with a through hole 313; the connecting member 220 is connected to the supporting member 210 through the through hole 313, and the connecting member 220 and the supporting member 210 together clamp the mounting lug.

In this embodiment, the mounting ear 310 includes a mounting portion 311 and a supporting portion 312, the mounting portion 311 is substantially perpendicular to the supporting member 210, a through hole 313 is opened on the mounting portion 311, and the connecting member 220 can pass through the mounting portion 311 to be connected with the supporting member 210, so that the supporting member 210 and the connecting member 220 together clamp the mounting portion 311 to achieve the assembly of the BMS assembly 300. The supporting portion 312 is connected to the mounting portion 311, and the width of the supporting portion 312 is gradually decreased from a side close to the mounting portion 311 to a side away from the mounting portion 311, so that the supporting portion 312 is substantially wedge-shaped, and thus the supporting function is provided to the mounting portion 311 through the supporting portion 312, the strength of the mounting portion 311 is improved, and the overall mounting stability of the BMS assembly 300 is ensured.

In addition, in order to further improve the overall assembly stability of the BMS module 300, in the present embodiment, the plurality of support members 200 are provided around the BMS module 300 while being spaced apart from each other. In the case of fig. 2 as an example, there are two BMS modules 300, four mounting ears 310 are provided at the outer circumference of each BMS module 300, and correspondingly, four support assemblies 200 are provided corresponding to each BMS module 300, whereby it is possible to provide support to the BMS modules 300 from a plurality of orientations of the BMS modules 300, thereby achieving the purpose of improving the assembly stability of the BMS modules 300.

It should be understood that in other embodiments of the present application, the number of mounting ears 310 on each BMS module 300 may take other values, and the corresponding number of support members 200 corresponding to each BMS module 300 may be set to other values. For example, each BMS assembly 300 has two mounting ears 310, two support assemblies 200 corresponding to each BMS assembly 300, and the like.

As described above, in the battery pack 10 provided in the embodiment of the present application, the BMS assembly 300 can be stably assembled by directly supporting the support member 210 of the support assembly 200 to the BMS assembly 300 and then stably coupling the BMS assembly 300 to the support member 210 via the coupling member 220; the existing metal plate support can be omitted, so that the material cost can be reduced, the assembly difficulty can be reduced, and the assembly cost can be reduced. Meanwhile, a certain interval is formed between the BMS module 300 and the support beam 110 to facilitate the arrangement of other components in the battery pack 10 through the interval, and the space utilization in the battery pack 10 may be improved. Therefore, the battery pack 10 can solve the technical problems that the BMS in the prior art occupies a large space, is not favorable for space utilization and has high material cost.

Second embodiment

In the present embodiment, an energy storage device (not shown) is provided, and the energy storage device provided in the present embodiment employs the battery pack 10 provided in the first embodiment, and the energy storage device can store electric energy and supply power to an electric device when being applied to the electric device. It should be noted that, because the energy storage device employs the battery pack 10 provided in the first embodiment, the energy storage device can also improve the technical problems that the BMS in the prior art occupies a large space, is not favorable for space utilization, and has high material cost.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A battery pack includes a frame body, a support assembly, and a BMS assembly;

a support beam is arranged in the frame body;

2. The battery pack according to claim 1, wherein the support member has a first fitting hole formed at one end thereof adjacent to the BMS assembly, and the connector is detachably coupled to the first fitting hole through the BMS assembly.

3. The battery pack of claim 2, wherein the first mounting hole is a threaded hole, and the connecting member is provided with an external thread adapted to the thread in the first mounting hole.

4. The battery pack of claim 2, wherein the first mounting hole has a depth of 6mm to 10mm.

5. The battery pack according to claim 1, wherein the support member is provided with a connecting portion at one end thereof adjacent to the support beam; the supporting beam is provided with a second assembling hole; the connecting part is detachably matched with the second assembling hole.

6. The battery pack according to claim 5, wherein the connecting portion is externally threaded on its outer periphery; the supporting component further comprises a matching piece, the matching piece is in threaded fit with the connecting portion, and the matching piece and the supporting piece clamp the supporting beam together.

7. The battery pack of claim 5, wherein the length of the connecting portion is 6mm to 10mm.

8. The battery pack according to any one of claims 1 to 7, wherein a mounting lug is provided on an outer side of the BMS module, and a through hole is provided on the mounting lug; the connecting piece passes the through-hole with support piece is connected, just the connecting piece with support piece centre gripping jointly the installation journal stirrup.

9. The battery pack according to any one of claims 1 to 7, wherein the support members are provided in plurality, and the plurality of support members are spaced apart from each other around the BMS module.

10. An energy storage device comprising a battery pack according to any one of claims 1 to 9.