CN213601942U

CN213601942U - Electricity core end plate structure

Info

Publication number: CN213601942U
Application number: CN202022361302.5U
Authority: CN
Inventors: 邢程; 党奎; 周兴
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-02
Anticipated expiration: 2030-10-20

Abstract

The utility model provides an electricity core end plate structure, includes backup pad, buffer board and elastic component, and the buffer board sets up with the backup pad in opposite directions, and is provided with the buffering clearance between buffer board and the backup pad, and the side that the backup pad was kept away from to the buffer board is used for butt electricity core, and the elastic component sets up in the buffering clearance, and the both ends of elastic component are connected with buffer board and backup pad respectively, and the elastic component is used for the ejection buffer board to keep away from the backup pad. The utility model provides an electricity core end plate structure, the buffer board be used for with electric core butt, the both ends difference butt of elastic component is in buffer board and backup pad, thereby it is fixed to make all can receive the buffer board centre gripping around electric core inflation, and can ensure that electric core can be according to the position of inflation degree automatic adjustment buffer board, the purpose of elastic adjustment has been realized, thereby can prevent to receive the extrusion after electric core inflation, the risk of weeping appears even, with the security that improves electric core and use.

Description

Electricity core end plate structure

Technical Field

The utility model relates to a battery technology field especially relates to an electricity core end plate structure.

Background

The battery module is a multi-battery-core structure which connects a plurality of battery cores in series or in parallel so that the battery cores are connected into a whole.

With the maturity of battery technology, battery modules are widely used, for example, in a power car, a battery management system and a thermal management system are added to the battery module to form a complete battery pack system, and the battery pack system is widely popular with consumers due to safety and high efficiency as a driving energy source of the power car.

Although battery technology has been developed in recent years, battery module still has following problem in practical application, when battery module is constituteed to the electric core, need use fixed frame, through a plurality of electric core holding in fixed frame, so that each electric core can be fixed as an organic whole, and along with electric core cyclic utilization number of times increases, the inflation can inevitably take place for the electric core, at this moment, a fixed frame for fixing electric core will become the hindrance of electric core, so, lead to electric core to be extruded, along with the extrusion is obvious, the problem of weeping can appear even to the electric core.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing an electric core end plate structure, can the elastic fixation electric core to can prevent that the problem of weeping from appearing by fixed frame extrusion after the electric core inflation.

The purpose of the utility model is realized through the following technical scheme:

a cell end plate structure comprising:

a support plate;

the buffer plate and the support plate are oppositely arranged, a buffer gap is arranged between the buffer plate and the support plate, and one side surface of the buffer plate, which is far away from the support plate, is used for abutting against the battery cell; and

the elastic piece is arranged in the buffer gap, two ends of the elastic piece are respectively connected with the buffer plate and the supporting plate, and the elastic piece is used for pushing the buffer plate to be far away from the supporting plate.

In one embodiment, the supporting plate comprises a supporting base body and a limiting rib, the limiting rib is arranged on the supporting base body, and the elastic piece is contained in the limiting rib.

In one embodiment, the supporting base body is provided with a plurality of fixing holes, and a space is arranged between the fixing holes.

In one embodiment, the supporting base body is provided with a buffer groove, the limiting rib is positioned on the inner side wall of the buffer groove, and at least part of the buffer plate is accommodated in the buffer groove.

In one embodiment, an included angle between the outer side wall of the limiting rib and the inner side wall of the buffer groove is an obtuse angle.

In one embodiment, the buffer plate comprises a buffer base body and a positioning rib, the positioning rib is arranged on the buffer base body, and the elastic piece is sleeved on the positioning rib.

In one embodiment, the buffer board further comprises a guide flap, the guide flap is arranged at the edge position of the buffer base body, and when the buffer board is close to or far away from the support board, the guide flap is attached to the inner side wall of the buffer groove.

In one embodiment, the positioning rib and the limiting rib are both of a circular structure, and the outer diameter of the positioning rib is smaller than the inner diameter of the limiting rib.

In one embodiment, the support plate and the buffer plate are both aluminum alloy.

In one embodiment, the resilient member is a spring.

Compared with the prior art, the utility model discloses at least, following advantage has:

the utility model discloses an electricity core end plate structure, including backup pad, buffer board and elastic component, the buffer board sets up with the backup pad in opposite directions, and is provided with the buffering clearance between buffer board and the backup pad, and a side that the backup pad was kept away from to the buffer board is used for butt electric core, and the elastic component sets up in the buffering clearance, and the both ends of elastic component are connected with buffer board and backup pad respectively, and the elastic component is used for the ejection buffer board to keep away from the backup pad. The utility model provides an electricity core end plate structure, the buffer board be used for with electric core butt, the both ends difference butt of elastic component is in buffer board and backup pad, thereby it is fixed to make all can receive the buffer board centre gripping around electric core inflation, and can ensure that electric core can be according to the position of inflation degree automatic adjustment buffer board, the purpose of elastic adjustment has been realized, thereby can prevent to receive the extrusion after electric core inflation, the risk of weeping appears even, with the security that improves electric core and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in 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 for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a cell end plate structure according to an embodiment of the present invention;

fig. 2 is a cross-sectional partial structural schematic view of the cell end plate structure shown in fig. 1;

fig. 3 is a partial schematic view of fig. 2 at a.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention 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 "secured 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 as used herein are for illustrative purposes only and do not represent the only embodiments.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.

Referring to fig. 1 and fig. 2, a cell end plate structure 10 includes a supporting plate 100, a buffer plate 200 and an elastic member 300, wherein the buffer plate 200 and the supporting plate 100 are disposed in opposite directions, a buffer gap is disposed between the buffer plate 200 and the supporting plate 100, a side surface of the buffer plate 200 away from the supporting plate 100 is used for abutting against a cell, the elastic member 300 is disposed in the buffer gap, two ends of the elastic member 300 are respectively connected to the buffer plate 200 and the supporting plate 100, and the elastic member 300 is used for pushing the buffer plate 200 away from the supporting plate 100.

It should be noted that, two ends of the elastic member 300 are respectively connected with the buffer board 200 and the support board 100, specifically, two ends of the elastic member 300 are respectively abutted against the support board 100 of the buffer board 200 stage, and a side of the buffer board 200 away from the support board 100 is used for abutting against the battery cell, so that when the battery cell is cyclically used for a certain number of times and is inevitably expanded, the battery cell can estimate the buffer board 200, it should be noted that, since the support board 100 is usually installed and fixed on a fixed frame, that is, the support board 100 is fixed, as the buffer board 200 is pushed by the battery cell, the buffer board 200 will approach the support board 100, at this time, the elastic member 300 will be compressed, and it should be noted that before and after the battery cell is expanded, the battery cell will be subjected to the clamping force of the buffer board 200, so that the battery cell can be fixed all the time, further, since the battery cell is expanded, the buffer plate 200 can be pushed to move, so that the extrusion force between the battery cell and the buffer plate 200 is changed through the compression motion of the elastic piece 300, and compared with a conventional fixing mode that a fixing frame is used for fixing the battery cell in a non-adjustable mode, the extrusion force between the battery cell and the buffer plate 200 is adjusted through the elastic piece 300, so that the elastic fixing of the battery cell is realized, and the problem that the battery cell is not extruded by the fixing frame and even damaged and leaked liquid can be avoided after the battery cell expands; in one embodiment, the elastic member 300 is a spring, and the resilient elastic deformation of the spring can automatically adjust the pressing force between the buffer board 200 and the elastic member 300 according to the expansion degree of the battery cell.

Referring to fig. 2 again, in one embodiment, the supporting plate 100 includes a supporting base 110 and a limiting rib 120, the limiting rib 120 is disposed on the supporting base 110, and the elastic element 300 is accommodated in the limiting rib 120.

It should be noted that, two ends of the elastic element 300 are respectively connected with the buffer board 200 and the support board 100, specifically, two ends of the elastic element 300 are respectively abutted against the buffer board 200 and the support board 100, further, in order to ensure that the support board 100 can be reliably fixed with the end of the elastic element 300, the support board 100 is provided with the limiting rib 120, specifically, the support board 100 includes a support base 110 for supporting and a limiting rib 120 for limiting and fixing, wherein the support board 100 can be fixedly connected with the fixing frame, the limiting rib 120 is arranged on a side surface of the support base 110 close to the electric core, and then the elastic element 300 is accommodated and fixed in the limiting rib 120, thereby preventing the elastic element 300 from being separated from the support board 100.

Referring to fig. 1 again, in one embodiment, the supporting base 110 is provided with a plurality of fixing holes 111, and a space is disposed between the fixing holes 111. It should be noted that the fixing hole 111 can be used to fix the support base 110 and the fixing frame into a whole, for example, a bolt can be used to pass through the fixing hole 111 and then be locked in the fixing frame, so that the support base 110 and the fixing frame are reliably fixed, in an embodiment, the inner side wall of the fixing hole 111 is provided with a thread; in one embodiment, two fixing holes 111 are provided.

Referring to fig. 1 again, in one embodiment, the supporting base 110 is provided with a buffering groove 112, the limiting rib 120 is located on an inner sidewall of the buffering groove 112, and at least a portion of the buffering plate 200 is accommodated in the buffering groove 112.

It should be noted that, offer buffering recess 112 on supporting substrate 110, specifically, offer buffering recess 112 on supporting substrate 110 is close to a side of buffer board 200, then spacing muscle 120 sets up on the diapire of buffering recess 112, and buffer board 200 is then held in buffering recess 112, specifically, when electric core inflation ejection buffer board 200 is close to backup pad 100, elastic component 300 is compressed, at this moment, buffer board 200 will move in buffering recess 112, so that at least part holding of buffer board 200 is in supporting substrate 110, so, the electric core end plate structure 10 of this application, because buffer board 200 can be held in backup pad 100, therefore the thickness can be littleer, thereby make its structure compacter.

Referring to fig. 3, in one embodiment, an included angle H between an outer sidewall of the limiting rib 120 and an inner sidewall of the buffering groove 112 is an obtuse angle. It should be noted that, an included angle H between the outer side wall of the limiting rib 120 and the bottom wall of the buffer groove 112 is a right angle, the firmness of the limiting rib 120 relative to the supporting base 110 can be enhanced, and further the limiting rib 120 can better limit and fix the elastic member 300, in an embodiment, the included angle H between the outer side wall of the limiting rib 120 and the inner side wall of the buffer groove 112 is 95 °, the outer side wall of the limiting rib 120 is inclined to improve the stability of the elastic member, so as to prevent the elastic member from breaking, in an embodiment, the supporting plate 100 is an aluminum alloy, the supporting base 110 and the limiting rib 120 are of an integrally formed structure, for example, the supporting base 110 and the limiting rib 120 can be formed by aluminum alloy through die casting.

Referring to fig. 2, in an embodiment, the buffer board 200 includes a buffer base 210 and a positioning rib 220, the positioning rib 220 is disposed on the buffer base 210, and the elastic member 300 is sleeved on the positioning rib 220.

It should be noted that, two ends of the elastic element 300 are respectively connected to the buffer board 200 and the support board 100, so that it is necessary to ensure that the end of the elastic element 300 can be fixedly connected to the buffer board 200 to prevent the elastic element 300 from falling off from the buffer board 200, specifically, one side surface of the buffer base 210 is used for abutting against the battery core, and the side surface of the buffer base 210 away from the battery core is provided with a positioning rib 220, the positioning rib 220 is used for fixing the elastic element 300, and since the elastic element 300 is a spring, in order to enable the positioning rib 220 to better fix the spring, the spring is sleeved on the outer side wall of the positioning rib 220, so that the outer side wall of the positioning rib 220 can be used for extruding and fixing the inner contour of the spring, so that the spring and the buffer board 200 can be reliably fixed; in one embodiment, the positioning rib 220 is a cross-shaped structure, so that the outer sidewall is utilized to press and fix the spring; in one embodiment, the buffer plate 200 is made of aluminum alloy, and the buffer base 210 and the positioning rib 220 are integrally formed, for example, the buffer base 210 and the positioning rib 220 may be formed by die-casting aluminum alloy.

Referring to fig. 1 and 2 again, in one embodiment, the buffer board 200 further includes a guide flap 230, the guide flap 230 is disposed at an edge position of the buffer base 210, and when the buffer board 200 is close to or far away from the supporting board 100, the guide flap 230 is attached to an inner side wall of the buffer groove 112.

It should be noted that, the edge of the buffer base 210 is provided with two guide folded plates 230, in an embodiment, the two guide folded plates 230 are respectively located at two sides of the buffer base 210, so that when the battery cell expands to push against the buffer board 200, that is, the buffer base 210 is accommodated in the buffer groove 112 formed on the support base 110, the guide folded plates 230 can abut against the inner side wall of the buffer groove 112, thereby ensuring that the plane of the buffer base 210 can be kept parallel to the plane of the support base 110, and since one side of the buffer base 210 away from the support base 110 is used for abutting against the battery cell, the battery cell expands to push against the buffer board 200 to be stably close to the support plate 100 by using the guide folded plates 230, thereby improving the stability of the battery cell end plate structure 10 of the present application; further, since the buffer gap is provided between the buffer plate 200 and the support plate 100, the buffer gap is actually a distance that the buffer plate 200 can travel when approaching the support plate 100, and by providing the guide folded plate 230, foreign matter can be blocked from falling into the buffer gap to some extent, thereby ensuring that the cell end plate structure 10 can reliably perform telescopic movement.

Referring to fig. 1 again, in an embodiment, the positioning rib 220 and the limiting rib 120 are both circular structures, and the outer diameter of the positioning rib 220 is smaller than the inner diameter of the limiting rib 120. It should be noted that, when the cell expansion ejection buffer plate 200 is close to the support plate 100, in order to ensure that the buffer plate 200 can be better accommodated in the buffer groove 112, when the outer diameter of the positioning rib 220 is smaller than the inner diameter of the limiting rib 120, along with the accommodation of the buffer plate 200 into the buffer groove 112, the positioning rib 220 can be accommodated in the limiting rib 120, it should be noted that the elastic member 300 needs to be accommodated at an interval between the positioning rib 220 and the limiting rib 120, so that the buffer plate 200 can be better accommodated in the support plate 100, so that the structure of the cell end plate structure 10 is more compact.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cell end plate structure, comprising:

a support plate;

2. The cell end plate structure of claim 1, wherein the support plate comprises a support base and a limiting rib, the limiting rib is disposed on the support base, and the elastic member is accommodated in the limiting rib.

3. The cell end plate structure of claim 2, wherein the support substrate defines a plurality of securing holes, and a space is defined between the securing holes.

4. The cell end plate structure of claim 2, wherein the support substrate is provided with a buffer groove, the limiting rib is located on an inner side wall of the buffer groove, and at least part of the buffer plate is accommodated in the buffer groove.

5. The cell end plate structure of claim 4, wherein an included angle between an outer side wall of the limiting rib and an inner side wall of the buffer groove is an obtuse angle.

6. The cell end plate structure of claim 4, wherein the buffer plate comprises a buffer base and a positioning rib, the positioning rib is disposed on the buffer base, and the elastic member is sleeved on the positioning rib.

7. The cell end plate structure of claim 6, wherein the buffer plate further comprises a guide folded plate, the guide folded plate is disposed at an edge position of the buffer base, and the guide folded plate is attached to an inner side wall of the buffer groove when the buffer plate is close to or far away from the support plate.

8. The cell end plate structure of claim 6, wherein the positioning ribs and the limiting ribs are both circular structures, and the outer diameter of the positioning ribs is smaller than the inner diameter of the limiting ribs.

9. The cell end plate structure of claim 1, wherein the support plate and the buffer plate are both aluminum alloy.

10. The cell end plate structure of claim 1, wherein the resilient member is a spring.