CN213459968U

CN213459968U - Battery and battery pack

Info

Publication number: CN213459968U
Application number: CN202022447434.XU
Authority: CN
Inventors: 叶进勇; 席兵荣; 程志刚; 郑伟伟; 李笑笑
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-15
Anticipated expiration: 2030-10-29

Abstract

A battery, characterized by: the battery core and the battery core fixing piece are arranged between the battery core and the battery core fixing piece, the glue injection structure comprises a glue injection groove and a glue area, and the glue area is located below the glue injection groove. The utility model provides a battery and battery package is provided with between electric core and electric core mounting and beats the glued structure, and glue pours into the gluey groove into, and the injecting glue stopper extrudes glue flow to glue district, realizes bonding between electric core and the electric core mounting after the glue solidification. Beat the gluey in-process, injecting glue stopper convenient operation, the glue yield is controllable, saves the process of waiting for the glue solidification to assemble again, solves current equipment of beating to glue and keeps flat to beat and beats the problem that the assembly efficiency is low when consuming long time of gluing. To the condition that electric core number is many or electric core mounting length is longer to be difficult for keeping flat, beat the gluey structure and can beat under the normal mode of putting of electric core and electric core mounting and glue, solved the use limitation problem of current equipment.

Description

Battery and battery pack

Technical Field

The disclosure relates to the field of power battery manufacturing, in particular to a battery and a battery pack.

Background

With the development of the battery technology of the electric automobile, a battery pack without a module becomes the mainstream, and the components are fixed by adopting a glue applying mode. When current glue beating equipment beats to glue, need keep flat the component and beat to glue on beating glue equipment, wait that glue solidification back assembles again, latency is longer, and assembly efficiency is low. To the difficult condition of keeping flat of component, current equipment of beating to glue will not be able to beat the operation of gluing. Therefore, a technical scheme is needed to solve the technical problem of the existing glue applying equipment.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, this disclosure provides a battery and battery package, is provided with between electric core and electric core mounting and beats the glued structure, beats the glued structure and can satisfy and beat and glue under the normal circumstances of putting of electric core and electric core mounting, has solved current equipment of beating to glue and has kept flat to beat and glue the problem that the long assembly efficiency was low when consuming, has also solved the current use limitation problem of beating equipment of gluing.

The first aspect of the disclosure provides a battery, which comprises a battery core and a battery core fixing piece, wherein a glue injection structure is arranged between the battery core and the battery core fixing piece, the glue injection structure comprises a glue injection groove and a glue area, and the glue area is located below the glue injection groove.

Preferably, the gluing structure is provided with a glue injection plug which is positioned above the glue injection groove and detachably connected with the glue injection groove.

Preferably, the glue area is provided with a notch, and the cross section of the notch is rectangular.

Preferably, first protruding ribs are arranged on two sides of the gluing structure, and the first protruding ribs protrude towards the battery core direction.

Preferably, a second protruding rib is arranged in the middle of the gluing structure, the second protruding rib protrudes towards the battery cell direction, and the second protruding rib is in an H shape.

Preferably, the back of the gluing structure is provided with a limiting column, the limiting column protrudes towards the direction of the battery cell fixing piece, the battery cell fixing piece is provided with a hole site, the limiting column is assembled in the hole site, and the protruding height of the limiting column is matched with the depth of the hole site.

Preferably, a weak area is arranged at the bottom of the gluing structure, and the section of the weak area is rectangular.

Preferably, the number of the gluing structures is at least two.

Preferably, the number of the battery cell fixing pieces is at least two.

A second aspect of the present disclosure provides a battery pack including the battery provided in the first aspect of the present disclosure.

The utility model provides a battery and battery package is provided with between electric core and electric core mounting and beats the glued structure, and glue pours into the gluey groove into, and the injecting glue stopper extrudes glue flow to glue district, realizes bonding between electric core and the electric core mounting after the glue solidification. Beat the gluey in-process, injecting glue stopper convenient operation, the glue yield is controllable, saves the process of waiting for the glue solidification to assemble again, solves current equipment of beating to glue and keeps flat to beat and beats the problem that the assembly efficiency is low when consuming long time of gluing. To the condition that electric core number is many or electric core mounting length is longer to be difficult for keeping flat, beat the gluey structure and can beat under the normal mode of putting of electric core and electric core mounting and glue, solved the use limitation problem of current equipment.

Drawings

Fig. 1 is a cross-sectional view of a battery provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of a battery according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of the gluing structure in fig. 2.

Fig. 4 is a schematic structural diagram of the battery of fig. 2 with the battery cell removed.

Fig. 5 is a schematic structural view of the rubber injection plug in fig. 2.

Fig. 6 is a schematic structural diagram of the cell fixing member in fig. 2.

Fig. 7 is an enlarged view of the notch at a in fig. 3.

Description of the reference numerals

Battery cell 1 and battery cell main body surface 11

Cell side 12 cell mounting 2

Hole site 21 gluing structure 3

Rubber injection groove 32 of rubber injection plug 31

Glue area 33 gap 331

First projecting rib 34 and second projecting rib 35

Second raised rib horizontal rib portion 351 and second raised rib vertical rib portion 352

Weak area 37 of limiting post 36

Glue channel 4

Detailed Description

The conception and the resulting technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present disclosure belong to the protection scope of the present disclosure.

In the description of the embodiments of the present disclosure, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present disclosure and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

In the description of the embodiments of the present disclosure, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present disclosure, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than", or "more than", it is understood that the number is not included, and if "more than", "less than", or "within", it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

The first aspect of the present disclosure provides a battery, which includes a battery core 1, a battery core fixing member 2, and a gluing structure 3. The gluing structure 3 is located between the battery core 1 and the battery core fixing part 2 and comprises a glue injection plug 31, a glue injection groove 32, a glue area 33, a first protruding rib 34, a second protruding rib 35, a limiting column 36 and a weak area 37. As shown in fig. 4, the X direction is the left-right direction of the glue applying structure 3, the Y direction is the front-back direction of the glue applying structure 3, and the Z direction is the up-down direction of the glue applying structure 3, which will be described later and will not be described in additional detail.

Arrange first protruding muscle 34 in the both sides of beating glued structure 3, first protruding muscle 34 is protruding to electric core 1 direction, and first protruding muscle 34 can be used to restrict electric core 1 and beat the displacement of glued structure 3 left and right sides direction. The height of the first protruding rib 34 may be selected according to the length of the cell body surface 11 and the actual requirement, and may be 1/3 covering the

cell body surface

11, or 1/2 covering the cell body surface 11. The first protruding rib 34 located on the same side of the cell body surface 11 may be configured to cooperatively cover the cell body surface 11, and then the first protruding rib 34 may be glued inside to increase the connection rigidity. In this embodiment, the protruding height of the first protruding rib 34 is short, so as to limit the displacement of the battery cell 1 in the left-right direction of the gluing structure 3, and reduce the use cost.

A second protruding rib 35 is arranged in the middle of the gluing structure 3, and the second protruding rib 35 protrudes towards the electric core 1. The second projecting rib 35 functions to absorb the Y-direction tolerance. The shape of the second protruding rib 35 is set to be H-shaped, which is divided into a second protruding rib transverse rib part 351 and a second protruding rib vertical rib part 352, the second protruding rib transverse rib part 351 is located below the glue area 33, and the second protruding rib vertical rib part 352 is located on two sides of the glue area 33. The height and shape of the second protruding ribs 35 can be selected according to actual needs.

The back of the gluing structure 3 is provided with a limiting column 36 which protrudes towards the direction of the battery cell fixing piece 2, the battery cell fixing piece 2 is provided with a hole site 21, and the protruding height of the limiting column 36 is matched with the depth of the hole site 21. The limiting column 36 is assembled on the hole position 21, so that the displacement of the gluing structure 3 in the up-down and left-right directions is limited, and the assembly efficiency is improved. In this embodiment, the glue applying structure 3 is provided with a limiting column 36 located below the glue area 33. The number and position of the limiting posts 36 can be selected according to actual needs.

The bottom of the gluing structure 3 is provided with a weak area 37 which is close to the bottom surface of the battery core 1. Glue can be arranged in the weak area 37 and can be used for bonding the battery cell fixing piece 2 and the battery cell 1 to increase the connection rigidity. In this embodiment, a weak area 37 is arranged at the bottom of the gluing structure 3, and is located in the middle area of the bottom of the gluing structure 3, and the weak area 37 is a rectangular notch. The number, location and form of the notches of the weakened areas 37 can be selected according to actual requirements.

Electric core 1 installs on beating glued structure 3, and electric core side 12 laminates mutually with the horizontal muscle portion 351 of the protruding muscle of second, the vertical muscle portion 352 of the protruding muscle of second, and electric core side 12 constitutes glue passageway 4 with the horizontal muscle portion 351 of the protruding muscle of second, the vertical muscle portion 352 of the protruding muscle of second. The glue applying structure 3 is provided with a glue injecting plug 31, a glue injecting groove 32 and a glue area 33 from top to bottom in the height direction. Glue can be injected into the glue injection groove 32, and the glue injection plug 31 is used for pushing the glue to flow and is detachably connected with the glue injection groove 32. The glue area 33 is provided with a notch 331, and the shape of the notch 331 can be rectangular, and can also be selected according to actual needs. The glue injecting plug 31 pushes the glue inside the glue injecting groove 32 to flow in the process of pressing down, and the glue flows from the glue injecting groove 32 through the glue channel 4 and finally flows to the glue area 33. The amount of glue in the glue area 33 depends on the amount of glue injected into the glue injection groove 32, and the amount of glue injected into the glue injection groove 32 can be selected according to the actual requirement of the amount of glue required in the glue area 33.

In the battery that this disclosure provided, the number of electric core mounting 2 and the number of beating gluey structure 3 all are two at least, and electric core mounting 2 and the quantity of beating gluey structure 3 can be adjusted according to electric core 1's quantity in the battery, and when the inside electric core 1 quantity that contains of battery changed, electric core mounting 2 and the quantity of beating gluey structure 3 can carry out the adaptability adjustment, if: when the battery is provided with only one battery core 1, two battery core fixing parts 2 and two gluing structures 3 are arranged. The battery cell fixing piece 2 and the gluing structure 3 are grouped and arranged at two sides of the battery cell 1 to fix the battery cell 1; when the battery comprises a plurality of battery cores 1, only two battery core fixing pieces 2 and two gluing structures 3 can be arranged to fix all the battery cores 1, and the battery core fixing pieces 2 and the gluing structures 3 are grouped and arranged at two sides of all the battery cores 1 to fix the battery cores 1; a plurality of cell fixing pieces 2 and gluing structures 3 can be arranged, the cell fixing pieces 2 and the gluing structures 3 are divided into a plurality of groups, and the plurality of groups of cell fixing pieces 2 and gluing structures 3 are arranged on two sides of all the cells 1 to fix the cells 1; also can set up 2 electric core mountings 2 and a plurality of gluey structures 3 of beating, every electric core mounting 2 goes up fixed a plurality of gluey structures 3 of beating, and electric core mounting 2 and beat gluey structure 3 and set up at 1 both sides of all electric cores, fixed electric core 1.

The following concrete introduction battery contains a plurality of electric cores 1, and electric core mounting 2 and the condition of beating gluey structure 3 and dividing into the multiunit: taking a battery provided with two cells 1 as an example, the first assembly method is as follows: two battery cores 1 are respectively bonded with 4 battery core fixing pieces 2 through 4 gluing structures 3, and adjacent battery core fixing pieces 2 are connected through welding, bolts or bonding and the like to assemble a battery; the second assembly mode: the two battery cores 1 are respectively bonded with 2 battery core fixing pieces 2 through 4 gluing structures 3 to assemble a battery, wherein the size of each battery core fixing piece 2 is matched with the combined size of the two battery cores 1; the third assembly mode is as follows: two electric cores 1 bond through 2

gluing structures

3 and 2 electric core mounting pieces 2 respectively, assemble into the battery, here glue structure 3, electric core mounting piece 2 size and two electric core 1's combined dimension phase-match. It should be understood that, when the number of the battery cells 1 in the battery exceeds two, the assembly manner will be changed, which is not described herein again, and the specific assembly manner may be selected according to actual needs and flexibly assembled in the battery pack.

To facilitate understanding by those skilled in the art, the assembly and gluing process of the present embodiment will be described. Firstly, the gluing structure 3 is mounted on the cell fixing member 2 through the plug connection between the limiting column 36 and the hole site 21. Electric core 1 sets up in the middle of the first protruding muscle 34 of structure 3 both sides of beating glue, and electric core side 12 and the protruding muscle 35 of second are laminated mutually, and electric core side 12 constitutes glue passageway 4 with the horizontal muscle portion 351 of the protruding muscle of second, the perpendicular muscle portion 352 of the protruding muscle of second. When the glue is applied, glue is injected into the glue injection groove 32, the glue injection plug 31 is extruded downwards, and the glue injection plug 31 applies extrusion force to the glue in the glue injection groove 32 to push the glue to flow. The glue flows from the glue injection groove 32 to the glue passage 4, and after reaching the glue passage 4, the glue passes through the notch 331, finally reaches the glue area 33 and stays in the glue area 33. When the glue completely flows to the glue area 33, the glue injection plug 31 is pulled out from the gluing structure 3. After the glue in the glue area 33 is cured, the bonding between the battery cell 1 and the battery cell fixing member 2 is realized.

A second aspect of the present disclosure provides a power pack including the above battery.

The embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, but the present disclosure is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present disclosure. Furthermore, the embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict.

Claims

1. A battery, characterized by: the battery core and the battery core fixing piece are arranged between the battery core and the battery core fixing piece, the glue injection structure comprises a glue injection groove and a glue area, and the glue area is located below the glue injection groove.

2. The battery of claim 1, wherein: the glue injection structure is provided with a glue injection plug, is positioned above the glue injection groove and is detachably connected with the glue injection groove.

3. The battery of claim 1, wherein: the glue area is provided with a notch, and the cross section of the notch is rectangular.

4. The battery of claim 1, wherein: first protruding ribs are arranged on two sides of the gluing structure and protrude towards the battery cell.

5. The battery of claim 1, wherein: a second protruding rib is arranged in the middle of the gluing structure, the second protruding rib protrudes towards the battery cell direction, and the second protruding rib is H-shaped.

6. The battery of claim 1, wherein: the back of the gluing structure is provided with a limiting column, the limiting column protrudes towards the direction of the battery cell fixing piece, the battery cell fixing piece is provided with a hole site, the limiting column is assembled in the hole site, and the protruding height of the limiting column is matched with the depth of the hole site.

7. The battery of claim 1, wherein a weakened area is provided at the bottom of the adhesive applying structure, the weakened area having a rectangular cross-section.

8. The battery of claim 1, wherein the number of said glue structures is at least two.

9. The battery of claim 1, wherein the number of the cell holders is at least two.

10. A battery pack comprising the battery of any one of claims 1-9.