CN219917376U - Lithium battery box and battery pack - Google Patents
Lithium battery box and battery pack Download PDFInfo
- Publication number
- CN219917376U CN219917376U CN202321007379.XU CN202321007379U CN219917376U CN 219917376 U CN219917376 U CN 219917376U CN 202321007379 U CN202321007379 U CN 202321007379U CN 219917376 U CN219917376 U CN 219917376U
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- China
- Prior art keywords
- positioning
- battery module
- box body
- battery
- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 42
- 238000000926 separation method Methods 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a lithium battery box and a battery pack. The lithium battery box comprises a box body, wherein a containing cavity is formed in the box body and used for containing a battery module, a positioning groove communicated with the containing cavity is formed in the box body and used for positioning the battery module, and a step structure is formed at the opening part, adjacent to the positioning groove, of the inner wall of the containing cavity; the lithium battery box further comprises a positioning fixing piece and a pressing piece, wherein the positioning fixing piece is positioned in the accommodating cavity and connected with the box body, and the positioning fixing piece and the step structure are jointly used for positioning and clamping two sides of the battery module; the pressing piece is positioned in the box body and connected with the box body, and is used for pressing and fixing the top surface of the battery module. Specifically, under the combined action of the step structure, the positioning fixing piece and the pressing piece, the battery is fixed in the accommodating cavity.
Description
Technical Field
The utility model relates to the field of battery boxes, in particular to a lithium battery box and a battery pack.
Background
With the development of new energy industry, more and more types of batteries appear on the market, and lithium batteries gradually get market favor due to the advantages of long service life, high temperature resistance, high reliability, multiple functions and the like. However, the lithium battery has low energy density, for high-power electric appliances such as electric vehicles, a single lithium battery monomer cannot provide enough capacity and energy, a plurality of single batteries are connected in series or in parallel to form a battery module to meet the capacity and energy requirements, and correspondingly, a box body is arranged outside after the plurality of single batteries are connected in series and in parallel to fix and protect the battery.
For example, chinese patent with application number CN202123299964.5 discloses a lithium battery box, including last box, lower box and installing support, go up the opening of box with the opening of box is relative and through bolt fastening down, the installing support with lower box is fixed, the installing support is including fixing down at least three left socle body of box one side, correspond to fix down the right branch frame body that equals with left branch frame body quantity of box opposite side, fix a plurality of layer boards of box bottom down and fix at least two strengthening bars of box bottom down, layer board both ends respectively with symmetrical left socle body, right branch frame body coupling, the strengthening bar is perpendicular with the layer board. According to the utility model, the mounting bracket is arranged, so that the battery box is convenient to carry and fix; and the two ends of the supporting plate are respectively connected with the symmetrical left bracket body and the symmetrical right bracket body, so that the connection stability of the mounting bracket and the lower box body is improved.
However, the structural design of the above lithium battery case has the following problems in use:
the lithium battery box needs to be provided with the bracket at the box body, and then the battery is fixed in the bracket, so that the structure is complicated and the installation operation efficiency is low; on the other hand, when the lithium battery box is carried and hoisted in the assembly line, the outer surface of the box body has no redundant space, namely, the carrying and hoisting are inconvenient.
Therefore, there is a need for a lithium battery box that is simple in structure and high in installation efficiency, and that is convenient to handle and hoist.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the lithium battery box and the battery pack which have simple structure and higher installation efficiency and are used for carrying and hoisting in a variable way.
The aim of the utility model is realized by the following technical scheme:
a lithium battery case comprising:
the battery module comprises a box body, wherein a containing cavity is formed in the box body and used for containing the battery module, a positioning groove communicated with the containing cavity is formed in the box body and used for positioning the battery module, and a step structure is formed at the opening part, adjacent to the positioning groove, of the inner wall of the containing cavity; the method comprises the steps of carrying out a first treatment on the surface of the
The lithium battery box further comprises a positioning fixing piece and a pressing piece, wherein the positioning fixing piece is positioned in the accommodating cavity and connected with the box body, and the positioning fixing piece and the step structure are jointly used for positioning and clamping two sides of the battery module;
the pressing piece is positioned in the box body and connected with the box body, and is used for pressing and fixing the top surface of the battery module.
In one embodiment, the cross section of the positioning fixture is U-shaped.
In one embodiment, the number of the step structures is at least two, and the positioning fixture is located between the two step structures.
In one embodiment, the number of the battery modules is at least two, and one positioning fixing member is arranged between every two adjacent battery modules.
In one embodiment, the positioning fixing member includes a first abutting portion, a second abutting portion and a fixing portion, the fixing portion is fixedly connected to an inner wall of the positioning groove, the first abutting portion and the second abutting portion are connected through the fixing portion, the first abutting portion is used for abutting against one of the two adjacent battery modules, and the second abutting portion is used for abutting against the other of the two adjacent battery modules.
In one embodiment, the first abutting portion is provided with a plurality of first separation grooves, the first separation grooves are arranged at intervals, the second abutting portion is provided with a plurality of second separation grooves, and the second separation grooves are arranged at intervals.
In one embodiment, each first separation groove and each second separation groove are symmetrically arranged; and/or the number of the groups of groups,
the positioning fixing piece further comprises a screw-connection piece, the fixing portion is provided with a first through hole, the inner wall of the positioning groove is provided with a second through hole, and the screw-connection piece is respectively arranged in the first through hole and the second through hole in a penetrating mode, so that the fixing portion is fixedly connected to the inner wall of the positioning groove.
In one embodiment, the pressing member includes a pressing abutting portion and a connecting portion, wherein the pressing abutting portion is used for pressing and abutting against the battery, and the connecting portion is fixedly connected with the box body.
In one embodiment, the lithium battery box further comprises a plug connector, wherein the plug connector is fixedly connected with the box body and is used for being electrically connected with the battery module.
The battery pack comprises a battery module and the lithium battery box according to any one of the embodiments, wherein the battery module is located in the accommodating cavity, and the battery module is clamped between the step structure and the positioning fixing piece.
Compared with the prior art, the utility model has at least the following advantages:
according to the lithium battery box, the accommodating cavity is formed in the box body, the step structure is arranged in the box body, the positioning fixing piece is located in the accommodating cavity, when the battery module is placed in the accommodating cavity, the step structure and the positioning fixing piece are used for jointly positioning and clamping the battery module, then the pressing piece is connected to the box body, and the pressing piece is used for pressing the battery module, so that the battery module is jointly fixed, the structure is simple, meanwhile, the installation operation is simple and convenient, and the installation efficiency is high; on the other hand, be equipped with step structure in the box for the surface of box both sides has sufficient space to carry hoist and mount, and the convenience is higher when carrying hoist and mount promptly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a connection between a lithium battery box and a battery module according to an embodiment;
fig. 2 is a schematic structural view of the lithium battery case shown in fig. 1;
fig. 3 is a structural cross-sectional view of the lithium battery case shown in fig. 2;
fig. 4 is a structural cross-sectional view of the connection of the lithium battery case and the battery shown in fig. 1;
fig. 5 is a schematic structural view of a positioning fixture of the lithium battery case shown in fig. 1.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model provides a lithium battery box, which comprises a box body, wherein a containing cavity is formed in the box body and is used for containing a battery module, a positioning groove communicated with the containing cavity is formed in the box body and is used for positioning the battery module, and a step structure is formed at the opening part of the inner wall of the containing cavity, which is adjacent to the positioning groove; the lithium battery box further comprises a positioning fixing piece and a pressing piece, wherein the positioning fixing piece is positioned in the accommodating cavity and connected with the box body, and the positioning fixing piece and the step structure are jointly used for positioning and clamping two sides of the battery module; the pressing piece is positioned in the box body and connected with the box body, and is used for pressing and fixing the top surface of the battery module.
According to the lithium battery box, the accommodating cavity is formed in the box body, the step structure is arranged in the box body, the positioning fixing piece is located in the accommodating cavity, when the battery module is placed in the accommodating cavity, the step structure and the positioning fixing piece are used for jointly positioning and clamping the battery module, then the pressing piece is connected to the box body, and the pressing piece is used for pressing the battery module, so that the battery module is jointly fixed, the structure is simple, meanwhile, the installation operation is simple and convenient, and the installation efficiency is high; on the other hand, be equipped with step structure in the box for the surface of box both sides has sufficient space to carry hoist and mount, and the convenience is higher when carrying hoist and mount promptly.
In order to better understand the technical scheme and beneficial effects of the present utility model, the following describes the present utility model in further detail with reference to specific embodiments:
as shown in fig. 1 to 4, a lithium battery case 10 of an embodiment includes a case 100, a positioning fixing member 200, and a pressing member 300. The housing 100 is provided with a receiving cavity 120, and the receiving cavity 120 is used for receiving the battery module 20, i.e. the battery module 20 is located in the receiving cavity 120. A positioning groove 130 is formed in the case 100 and is communicated with the accommodating cavity 120, the positioning groove 130 is used for positioning the battery module 20, and a step structure 110 is formed at the opening of the inner wall of the accommodating cavity 120 adjacent to the positioning groove 130. Further, the positioning fixing member 200 is located in the accommodating cavity 120, the positioning fixing member 200 is connected with the case 100, and the positioning fixing member 200 and the step structure 110 are used together to position and clamp two sides of the battery module 20, i.e. the battery module 20 is located between the positioning fixing member 200 and the step structure 110. Further, the pressing member 300 is connected to the case 100, and the pressing member 300 is used for pressing and fixing the battery module 20.
In this embodiment, the number of the battery modules 20 is at least two, the number of the step structures 110 is at least two, the two rows of battery modules 20 are respectively placed in the accommodating cavity 120, the two step structures 110 play a role in initial positioning, that is, the two rows of battery modules 20 are respectively attached to the step structures 110 on two sides, at this time, a gap exists between the two rows of battery modules 20, the positioning fixing member 200 applies a force along the gap to enable the positioning fixing member 200 to be pressed down to the bottom of the case 100, the positioning fixing member 200 deforms in the pressing process, so that the two rows of battery modules 20 are respectively fixed under the combined action of the positioning fixing member 200 and the step structures 110 on two sides, then the positioning fixing member 200 is connected with the case 100, and finally the pressing member 300 is connected to the case 100.
It will be appreciated that the positioning fixture 200 is a composite part of plastic and metal, and that the positioning fixture 200 and the battery module 20 are in an interference fit during the pressing of the positioning fixture 200.
In the lithium battery box 10, the accommodating cavity 120 is formed in the box body 100, the step structures 110 are formed on two sides of the box body 100, the positioning fixing member 200 is located in the accommodating cavity 120, when the battery module 20 is placed in the accommodating cavity 120, the step structures 110 and the positioning fixing member 200 are used for jointly positioning and clamping the battery module 20, then the pressing member 300 is connected to the box body 100, and the pressing member 300 is used for pressing the battery module 20, so that the battery module 20 is jointly fixed, the structure is simple, meanwhile, the installation operation is simple and convenient, and the installation efficiency is high; on the other hand, the two sides of the box body 100 are provided with the step structures 110, so that the outer surfaces of the two sides of the box body 100 have enough space for carrying and hoisting, namely, the convenience is higher during carrying and hoisting.
As shown in fig. 5, in one embodiment, the positioning fixture 200 has a U-shaped cross section. It is understood that both sides of the positioning fixture 200 are respectively attached to the battery module 20.
As shown in fig. 3 and 4, in one embodiment, the number of the step structures 110 is at least two, and the positioning fixture 200 is located between two adjacent step structures 110. It can be appreciated that the battery module 20 is clamped between the positioning fixture 200 and the step structure 110 such that the battery module 20 is primarily fixed at the corresponding position. Further, the pressing member 300 is attached to the battery module 20, so that the battery module 20 is tightly fixed in the accommodating cavity 120. Of course, in other embodiments, the number of the step structures 110 may be more than 2, and the plurality of step structures 110 cooperate with the positioning fixture 200 to position and fix the battery module 20.
As shown in fig. 4, in one embodiment, the number of the battery modules 20 is at least two, and a positioning fixture 200 is provided between each adjacent two of the battery modules 20. It can be understood that each two adjacent battery modules 20 clamp one positioning fixture 200, and the other sides of the two battery modules 20 are abutted by the step structure 110, so that the two battery modules 20 are positioned and fixed under the combined action of the positioning fixture 200 and the step structure 110.
As shown in fig. 5, in one embodiment, the positioning fixture 200 includes a first abutting portion 210, a second abutting portion 220 and a fixing portion 230, the fixing portion 230 is fixedly connected to an inner wall of the positioning groove 130, the first abutting portion 210 and the second abutting portion 220 are connected by the fixing portion 230, the first abutting portion 210 is used for abutting against one of the two adjacent battery modules 20, and the second abutting portion 220 is used for abutting against the other of the two adjacent battery modules 20.
In the present embodiment, the lithium battery module 20 box 10 houses two rows of battery modules 20, and the first abutting portion 210 and the second abutting portion 220 respectively abut against the two rows of battery modules 20. Further, the first abutting portion 210 and the step structure 110 at one side of the case 100 clamp and fix one row of battery modules 20 together, and the second abutting portion 220 and the step structure 110 at the other side of the case 100 hijack and fix the other row of battery modules 20 together.
As shown in fig. 5, in one embodiment, the first abutting portion 210 is provided with a plurality of first separation grooves 211, the plurality of first separation grooves 211 are arranged at intervals, and the second abutting portion 220 is provided with a plurality of second separation grooves 221, and the plurality of second separation grooves 221 are arranged at intervals. It can be understood that the positioning fixing member 200 is clamped between the two rows of battery modules 20, when the positioning fixing member 200 is pressed down, the first abutting portions 210 can be more easily deformed inwards by the plurality of first separating grooves 211 when the positioning fixing member 200 is pressed down, and the second abutting portions 220 can be more easily deformed inwards by the plurality of second separating grooves 221 when the positioning fixing member 200 is pressed down, so that the positioning fixing member 200 is more easily pressed down to the bottom of the case 100.
As shown in fig. 5, in one embodiment, each first separation groove 211 and each second separation groove 221 are symmetrically disposed, so that the positioning fixture 200 is more easily pressed down to the bottom of the case 100.
As shown in fig. 2 and 3, in one embodiment, the positioning fixing member 200 further includes a screw member 240, the fixing portion 230 is provided with a first through hole, the inner wall of the positioning slot 130 is provided with a second through hole, and the screw member 240 is respectively inserted into the first through hole and the second through hole, so that the fixing portion 230 is fixedly connected to the inner wall of the positioning slot 130. Of course, in other embodiments, the fixing portion and the case may be connected by other manners, such as bonding or welding the fixing portion and the case.
As shown in fig. 2, in one embodiment, the pressing member 300 includes a pressing abutment portion 310 and a connecting portion 320, wherein the pressing abutment portion 310 is used for pressing against the battery module 20, and the connecting portion 320 is fixedly connected with the case 100. It can be appreciated that when the positioning fixing member 200 is pressed down to the bottom of the case 100, the connecting portion 320 is fixedly connected with the case 100, and the pressing abutment portion 310 presses the battery module 20 at this time, so that the battery module 20 is fixed in the accommodating cavity 120. The connection portion 320 and the case 100 may be connected by screwing, bonding, welding, or the like.
As shown in fig. 2, in one embodiment, the case 10 of the lithium battery module 20 further includes a connector 400, the connector 400 is fixedly connected with the case 100, and the connector 400 is used for electrically connecting with the battery module 20. It is understood that the socket connector 400 is electrically connected with the battery module 20, i.e., the battery module 20 is electrically connected with external devices through the socket connector 400.
The utility model also provides a battery module 20 pack, which comprises a battery module 20 and the lithium battery module 20 box 10 of any embodiment, wherein the battery module 20 is positioned in the accommodating cavity 120, and the battery module 20 is clamped between the step structure 110 and the positioning fixing piece 200.
Compared with the prior art, the utility model has at least the following advantages:
according to the lithium battery box, the accommodating cavity is formed in the box body, the step structure is arranged in the box body, the positioning fixing piece is located in the accommodating cavity, when the battery module is placed in the accommodating cavity, the step structure and the positioning fixing piece are used for jointly positioning and clamping the battery module, then the pressing piece is connected to the box body, and the pressing piece is used for pressing the battery module, so that the battery module is jointly fixed, the structure is simple, meanwhile, the installation operation is simple and convenient, and the installation efficiency is high; on the other hand, be equipped with step structure in the box for the surface of box both sides has sufficient space to carry hoist and mount, and the convenience is higher when carrying hoist and mount promptly.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The lithium battery box comprises a box body, wherein a containing cavity is arranged in the box body and used for containing a battery module,
a positioning groove communicated with the accommodating cavity is formed in the box body and used for positioning the battery module, and a step structure is formed at the opening part of the inner wall of the accommodating cavity adjacent to the positioning groove;
the lithium battery box further comprises a positioning fixing piece and a pressing piece, wherein the positioning fixing piece is positioned in the accommodating cavity and connected with the box body, and the positioning fixing piece and the step structure are jointly used for positioning and clamping two sides of the battery module;
the pressing piece is positioned in the box body and connected with the box body, and is used for pressing and fixing the top surface of the battery module.
2. The lithium battery case according to claim 1, wherein the positioning fixture has a U-shaped cross section.
3. The lithium battery box according to claim 1, wherein the number of the step structures is at least two, and the positioning fixture is located between two adjacent step structures.
4. A lithium battery box according to claim 1 or 3, wherein the number of the battery modules is at least two, and one positioning fixing member is provided between each two adjacent battery modules.
5. The lithium battery box according to claim 4, wherein the positioning fixing member comprises a first abutting portion, a second abutting portion and a fixing portion, the fixing portion is fixedly connected to an inner wall of the positioning groove, the first abutting portion and the second abutting portion are connected through the fixing portion, the first abutting portion is used for abutting against one of two adjacent battery modules, and the second abutting portion is used for abutting against the other of the two adjacent battery modules.
6. The lithium battery box according to claim 5, wherein the first abutting portion is provided with a plurality of first separation grooves, a plurality of first separation grooves are arranged at intervals, and the second abutting portion is provided with a plurality of second separation grooves, and a plurality of second separation grooves are arranged at intervals.
7. The lithium battery box according to claim 6, wherein each of the first separation grooves is symmetrically arranged with each of the second separation grooves; and/or the number of the groups of groups,
the positioning fixing piece further comprises a screw-connection piece, the fixing portion is provided with a first through hole, the inner wall of the positioning groove is provided with a second through hole, and the screw-connection piece is respectively arranged in the first through hole and the second through hole in a penetrating mode, so that the fixing portion is fixedly connected to the inner wall of the positioning groove.
8. The lithium battery box according to claim 1, wherein the press-fit member comprises a press-fit abutting portion and a connecting portion, wherein the press-fit abutting portion is used for being pressed and abutted to the battery module, and the connecting portion is fixedly connected with the box body.
9. The lithium battery box according to claim 1, further comprising a plug connector fixedly connected to the box body, the plug connector being for electrical connection with the battery module.
10. A battery pack, characterized by comprising a battery module and the lithium battery box of any one of claims 1 to 9, wherein the battery module is positioned in the accommodating cavity, and the battery module is clamped between the step structure and the positioning fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321007379.XU CN219917376U (en) | 2023-04-25 | 2023-04-25 | Lithium battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321007379.XU CN219917376U (en) | 2023-04-25 | 2023-04-25 | Lithium battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917376U true CN219917376U (en) | 2023-10-27 |
Family
ID=88425778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321007379.XU Active CN219917376U (en) | 2023-04-25 | 2023-04-25 | Lithium battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917376U (en) |
-
2023
- 2023-04-25 CN CN202321007379.XU patent/CN219917376U/en active Active
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