CN216671831U

CN216671831U - Battery with a battery cell

Info

Publication number: CN216671831U
Application number: CN202123157461.4U
Authority: CN
Inventors: 张毛毛; 何亚飞; 其他发明人请求不公开姓名
Original assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Current assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-03
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a battery, which comprises a battery body, an end plate and a binding band. The battery body is cuboid and a plurality of electric cores side by side inside. The end plate is a rectangular plate and comprises a first side part and a second side part, and the first side part is positioned on the opposite surface of the second side part. The end plate is installed in the tip of battery body, and the second lateral part of end plate is close to battery body, and battery body is kept away from to the first lateral part of end plate. The straps are disposed around the battery body and the end plates to bind the battery body and the end plates to each other. The first side of the end plate is provided with a limiting piece, and the limiting piece is arranged to limit the bandage to move along the surface of the end plate. The locating part can prevent that the bandage from sliding for end plate and battery body, strengthens the battery fastness, extension battery life.

Description

Battery with a battery cell

Technical Field

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

Background

With the development of society and the progress of science, batteries are widely used in various fields. Current battery includes casing, end plate and inside a plurality of electric cores, and a plurality of electric cores set up in the casing side by side, and two end plates are installed in the both ends of casing, and in the use, the electric core generates heat and can take place the inflation, and it is fixed with a plurality of electric cores, casing and end plate to need to use the bandage usually.

Among the prior art, annular bandage from the upper cover outside the casing of end plate and electric core, can not accurate location and spacing after the bandage installation, bandage position can take place to remove in the follow-up battery use and influence overall structure intensity.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a battery that solves the above-mentioned problems of the prior art.

In order to solve the above-described problems, according to one aspect of the present invention, there is provided a battery including a battery body, an end plate, and a band. The battery body is cuboid and a plurality of electric cores side by side inside. The end plate is a rectangular plate and comprises a first side part and a second side part, and the first side part is opposite to the second side part. The end plate is installed in the tip of battery body, and the second lateral part of end plate is close to battery body, and battery body is kept away from to the first lateral part of end plate. The straps are disposed around the battery body and the end plates to bind the battery body and the end plates to each other. The first side of the end plate is provided with a limiting piece, and the limiting piece is arranged to limit the bandage to move along the surface of the end plate. The locating part can prevent that the bandage from sliding for end plate and battery body, strengthens the battery fastness, extension battery life.

In one embodiment, the end plates are two and disposed at both ends of the battery body, respectively, and the band is disposed around the battery body and the two end plates.

In one embodiment, the limiting member is disposed on the first side portion of the end plate and includes an upper limiting block and a lower limiting block, the upper limiting block and the lower limiting block extend away from the end plate by a distance not less than the thickness of the strap, and a distance between the upper limiting block and the lower limiting block is not less than the width of the strap;

the binding band is located between the upper limiting block and the lower limiting block.

In one embodiment, the limiting piece comprises an upper limiting piece and a lower limiting piece, the upper limiting piece and the lower limiting piece extend away from the end plate by a distance no less than the thickness of the binding band, and the distance between the upper limiting piece and the lower limiting piece is 1mm to 3mm greater than the width of the binding band;

In one embodiment, the upper and lower stops are located proximate a first end and a top end of the end plate, the first end being adjacent a first side of the end plate and the second side of the end plate.

In one embodiment, the upper and/or lower stop block extends from the first side of the end plate to the first end of the end plate.

In one embodiment, the number of the limiting members is two, and the two limiting members are respectively located at the upper end and the lower end of the first side portion;

the number of the binding bands is two, and the two binding bands are respectively positioned between the upper limiting block and the lower limiting block of the two limiting parts.

In one embodiment, the two pairs of limiting members,

the pair of limiting pieces are arranged at the upper end of the first side part, and the pair of limiting pieces positioned at the upper end are symmetrically arranged at two ends of the first side part;

the other pair of limiting parts is located at the lower end of the first side part, and the other pair of limiting parts located at the lower end are symmetrically arranged at two ends of the first side part.

In one embodiment, the upper restraint block extends away from the end plate a greater distance than the lower restraint block extends away from the cell body.

In one embodiment, the upper stop block extends away from the end plate a distance of 0mm to 1mm greater than the thickness of the strap.

The utility model adopts the limiting part to limit the movement of the binding band, can strengthen the stability of the battery and prolong the service life of the battery.

Drawings

Fig. 1 is a schematic diagram of a battery according to an embodiment of the present invention.

Fig. 2 is a schematic view of a cell body and end plates according to one embodiment of the utility model.

Reference numerals: 100. a battery; 1. a battery body; 2. an end plate; 21. a first side portion; 22. a second side portion; 23. a first end portion; 24. a second end portion; 3. binding bands; 4. a stopper; 41. an upper limit block; 42. a lower limit block.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the utility model can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the essential spirit of the technical solution of the present invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be interpreted as words of convenience and should not be interpreted as limiting terms.

The present invention relates to a battery 100, and the battery 100 includes a battery body 1, an end plate 2, and a band 3. The battery body 1 is a cuboid and is internally provided with a plurality of battery cells side by side. The end plate 2 is a rectangular plate and comprises a first side portion 21 and a second side portion 22, the first side portion 21 being located opposite the second side portion 22. The end plate 2 is attached to an end of the battery body 1. Specifically, the second side 22 of the end plate 2 is close to the battery body 1, and the first side 21 of the end plate 2 is remote from the battery body 1. The binding band 3 is provided around the battery body 1 and the end plate 2 to bind the battery body 1 and the end plate 2 to each other. The first side 21 of the end plate 2 is provided with a stop 4, and the stop 4 is arranged to limit the movement of the strap 3 along the surface of the end plate 2. The stopper 4 prevents the band 3 from sliding relative to the end plate 2 and the battery body 1, thereby enhancing the firmness of the battery 100 and prolonging the service life of the battery 100.

Alternatively, the retaining member 4 may be an anti-slip groove formed by being recessed inward at an edge between the first side portion 21 and the two end portions of the end plate 2, the anti-slip groove extending between the first side portion 21 and the two end portions and having a width slightly larger than the width of the strap 3 so that the strap 3 can be seated in the anti-slip groove, and the anti-slip groove has a depth slightly larger than the thickness of the strap 3 to limit the movement of the strap 3. It will be appreciated that the anti-slip grooves may also be slightly smaller than the thickness of the straps 3, and may also limit the movement of the straps 3. The anti-slip grooves may be disposed at corresponding positions of two ends of the end plate 2, or may be disposed on the first side portion 21, and both of them may play a role of preventing the movement of the binding band 3.

In one embodiment, the limiting member 4 is disposed on the first side portion 21 of the end plate 2 and includes an upper limiting block 41 and a lower limiting block 42, the upper limiting block 41 and the lower limiting block 42 extend away from the end plate 2 by a distance not less than the thickness of the strap 3, and the distance between the upper limiting block 41 and the lower limiting block 42 is not less than the width of the strap 3. The strap 3 is located between the upper and lower restraint blocks 41, 42. The upper limiting block 41 and the lower limiting block 42 may be in any shape, the upper limiting block or the lower limiting block 42 may be in the shape of a strip extending along two ends of the end plate 2, or may be a row of columns arranged at intervals and continuously forming a line, as shown in fig. 1 and 2, the upper limiting block 41 and the lower limiting block 42 are both disposed on the first side portion 21 of the end plate 2, the upper limiting block 41 is in the shape of a block, and the lower limiting block 42 is in the shape of a strip.

Further, the upper stopper 41 extends away from the end plate 2 by a distance greater than the lower stopper 42 extends away from the battery body 1. The length of the upper and lower limiting

blocks

41 and 42 extending perpendicular to the end plate 2 affects the limiting effect on the binding band 3, on one hand, the length of the upper and lower limiting

blocks

41 and 42 perpendicular to the end plate 2 is ensured to be long enough to ensure the limiting effect of the upper and lower limiting

blocks

41 and 42 on the binding band 3, and at the same time, the length of the upper and lower limiting

blocks

41 and 42 perpendicular to the end plate 2 is controlled to prevent the too large limiting blocks from obstructing the use of the battery 100, for example, the too large limiting blocks are inconvenient to install in the frame of the electric vehicle and occupy a large amount of space. Preferably, the upper stop block 41 extends away from the end plate 2 by a distance of 0mm to 1mm greater than the thickness of the strap 3, and the lower stop block 42 extends away from the end plate 2 by a distance of 0mm to 0.5mm greater than the thickness of the strap 3. It is understood that in other embodiments, the distance between the upper limiting block 41 and the lower limiting block 42 away from the end plate 2 may be the same, and the distance between the upper limiting block 41 and the end plate 2 may be smaller than the distance between the lower limiting block 42 and the end plate 2, which may be designed as required.

Further, the upper and

lower stoppers

41 and 42 are located near the first end 23 and the tip end of the end plate 2. As shown in fig. 1 and 2, the upper stopper 41 and the lower stopper 42 are located near the first end 23, and the lower stopper 42 extends to the first end 23, i.e., the lower stopper 42 is located at the first side 21 and the first end 23 of the end plate 2, respectively, to restrict the movement of the band 3 in both directions, so that the band 3 is more stably disposed around the battery body 1 and the end plate 2. It will be appreciated that the upper stop block 41 may also extend from the first side 21 to the first end 23 of the end plate 2, or that the upper stop block 41 and the lower stop block 42 may extend from the first side 21 to the first end 23 of the end plate 2 at the same time. It is also possible to extend the upper limiting block 41 and the lower limiting block 42 to the second end 24 along the first side portion 21 in parallel, that is, the upper limiting block 41 and the lower limiting block 42 are two parallel strips and extend from the first end 23 of the end plate 2 to the second end 24 along the first side portion 21, and the binding band 3 is directly installed between the two parallel limiting blocks.

Alternatively, two limiting members 4 are provided, two limiting members 4 are respectively located at the upper end and the lower end of the first side portion 21 of the end plate 2, and two binding bands 3 are respectively located between the upper limiting block 41 and the lower limiting block 42 of the two limiting members 4. In practice, each battery 100 is often fixed by two bands 3, one at the upper end of the battery 100 and the other at the lower end of the battery 100, and two pairs of stoppers may be provided at the upper end of the end plate 2 for fixing the bands 3 at the upper end of the battery 100, and preferably, the two pairs of stoppers are symmetrically and parallel arranged.

Optionally, two pairs of limiting members 4 may be provided, wherein one pair of limiting members 4 is disposed at the upper end of the first side portion 21, and the pair of limiting members 4 at the upper end is symmetrically disposed at two ends of the first side portion 21 for limiting the binding band 3 at the upper end of the battery 100; the other pair of stoppers 4 are located at the lower end of the first side portion 21 of the end plate 2, and the other pair of stoppers 4 located at the lower end are symmetrically disposed at both ends of the first side portion 21 to restrict the binding bands 3 at the lower end of the battery 100. It can be understood that the two pairs of limiting members 4 may be the same limiting member or different limiting members, in the embodiment of fig. 1 and fig. 2, the pair of limiting members 4 at the upper end of the first side portion 21 are symmetrically arranged, and have a symmetrical shape, and the limiting member 4 at the lower end is also symmetrically arranged, and the lower limiting member 42 in the lower limiting member 4 at the lower end is close to the bottom end of the end plate 2 and extends from the first end 23 to the second end 24 of the end plate 2, so as to support the binding band 3.

In another embodiment, the limiting member 4 comprises an upper limiting block 41 and a lower limiting block 42, the upper limiting block 41 and the lower limiting block 42 extend away from the end plate 2 by a distance no less than the thickness of the binding band 3, and the distance between the upper limiting block 41 and the lower limiting block 42 is 1mm to 3mm larger than the width of the binding band 3; the strap 3 is located between the upper and lower restraint blocks 41, 42.

Alternatively, the end plates 2 are two and provided at both ends of the battery body 1, respectively, and the binding band 3 is provided around the battery body 1 and the two end plates 2. It can be understood that, different end plates 2 may be used at two ends of the battery body 1, for example, one end plate 2 according to the present invention may be used, another end plate may be used in other manners, or the same end plate 2 may be used, for example, both end plates may be used as the end plates 2 according to the present invention, the limiting members 4 of the two end plates 2 are symmetrically arranged, and the limiting members 4 of the two end plates 2 simultaneously limit the movement of the binding band 3, so that the stability of the binding band 3 is better.

The utility model adopts the limiting piece 4 to limit the movement of the binding band 3, thereby strengthening the stability of the battery 100 and prolonging the service life of the battery 100.

While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that various changes and modifications of the utility model can be effected therein by those skilled in the art after reading the above teachings of the utility model. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A battery, comprising:

a battery body;

the end plate is arranged at the end part of the battery body, the first side part of the end plate is far away from the battery body and is provided with a limiting piece, the second side part of the end plate is close to the battery body, and the second side part of the end plate is opposite to the first side part of the end plate; and

a strap disposed around the battery body and the end plate to bind the battery body and the end plate to each other;

the stopper is provided to restrict the movement of the strap along the end plate surface.

2. The battery of claim 1, wherein the end plates are two and disposed at both ends of the battery body, respectively, and the band is disposed around the battery body and the two end plates.

3. The battery of claim 1, wherein the retainer is disposed on the first side of the end plate and includes an upper retainer block and a lower retainer block, the upper retainer block and the lower retainer block extending away from the end plate a distance no less than a thickness of the strap, a spacing between the upper retainer block and the lower retainer block no less than a width of the strap;

4. The battery of claim 1, wherein the retainer comprises an upper retainer block and a lower retainer block, the upper retainer block and the lower retainer block extending away from the end plate a distance no less than the thickness of the strap, the upper retainer block and the lower retainer block having a spacing between them that is 1mm to 3mm greater than the width of the strap;

5. The battery of claim 3, wherein the upper and lower retainers are located proximate a first end and a top end of the end plate, the first end being adjacent a first side of the end plate and the second side of the end plate.

6. The battery of claim 5, wherein the upper and/or lower restraint blocks extend from a first side of the end plate to a first end of the end plate.

7. The battery of claim 3, wherein the number of the limiting members is two, and the two limiting members are respectively located at the upper end and the lower end of the first side portion;

8. The battery according to claim 3, wherein the stoppers are two pairs,

9. The battery of claim 3, wherein the upper stop extends away from the end plate a greater distance than the lower stop extends away from the battery body.

10. The battery of claim 9, wherein the upper stop block extends away from the end plate a distance 0mm to 1mm greater than the thickness of the strap.