CN217956036U - Group battery apron structure and battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, a group battery apron structure and battery pack are proposed. The battery pack cover plate structure comprises a top cover and a fixing piece, wherein the top cover is provided with a matching part, the matching part extends along a first direction to penetrate through the top cover, the first direction is vertical to the thickness direction of the top cover, and the fixing piece is arranged in the matching part in a penetrating mode; wherein, cooperation portion includes fixed orifices and fixed slot. Through wearing to locate the mounting in the cooperation portion to can be so that the top cap passes through the mounting and is connected with other structures, with this make things convenient for group battery apron structure to be connected with other structures, and because cooperation portion includes fixed orifices and fixed slot, not only can guarantee the joint strength of mounting and cooperation portion, and can reduce the whole quality of top cap, thereby improve the performance of group battery apron structure.

Description

Group battery apron structure and battery pack

Technical Field

The utility model relates to the technical field of batteries, especially, relate to a group battery apron structure and battery pack.

Background

In the related art, the battery pack may include a battery assembly, which is limited by the connection manner of the battery assembly, and the battery assembly is prone to loosening, particularly, the connection strength of the top cover of the battery assembly is related to.

SUMMERY OF THE UTILITY MODEL

The utility model provides a group battery apron structure and battery pack to improve the performance of group battery apron structure.

According to one aspect of the utility model, a cover plate structure of a battery pack is provided, which comprises a top cover and a fixing piece, wherein the top cover is provided with a matching part, the matching part extends along a first direction to penetrate through the top cover, the first direction is perpendicular to the thickness direction of the top cover, and the fixing piece is arranged in the matching part in a penetrating way;

wherein, cooperation portion includes fixed orifices and fixed slot.

The utility model discloses group battery apron structure includes top cap and mounting, be provided with the cooperation portion that runs through the top cap along the first direction on the top cap, and the thickness direction of first direction perpendicular to top cap, through wearing to locate the mounting in the cooperation portion, thereby can make the top cap be connected with other structures through the mounting, with this make things convenient for group battery apron structure and being connected of other structures, and because the cooperation portion includes fixed orifices and fixed slot, not only can guarantee the joint strength of mounting and cooperation portion, and can reduce the whole quality of top cap, thereby improve the performance of group battery apron structure.

According to another aspect of the present invention, a battery pack is provided, which includes the above battery pack cover plate structure.

The utility model discloses battery pack includes group battery apron structure, group battery apron structure includes top cap and mounting, be provided with the cooperation portion that runs through the top cap along the first direction on the top cap, and the thickness direction of first direction perpendicular to top cap, through wearing to locate the mounting in the cooperation portion, thereby can make the top cap pass through the mounting and be connected with other structures, make things convenient for group battery apron structure to be connected with other structures with this, and because the cooperation portion includes fixed orifices and fixed slot, not only can guarantee the joint strength of mounting and cooperation portion, and can reduce the whole quality of top cap, thereby improve battery pack's performance.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:

FIG. 1 is a schematic diagram illustrating the construction of a battery assembly according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating the construction of a top cover for a battery assembly according to an exemplary embodiment;

FIG. 3 is a schematic view of a partial structure of a top cover of a battery assembly according to an exemplary embodiment;

FIG. 4 is another partial schematic structural view of a top cover of a battery assembly in accordance with an exemplary embodiment;

fig. 5 is a partial structural schematic view illustrating a battery assembly according to an exemplary embodiment.

The reference numerals are explained below:

10. a battery assembly; 11. a fixed frame; 117. a fixing through hole; 12. a top cover; 121. a fitting portion; 1211. a first stage; 1212. a second stage; 1213. a third stage; 122. accommodating a tank; 1222. reinforcing ribs; 129. a protrusion; 1291. an opening; 13. a battery; 30. and a fixing member.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, so it should be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the" object or "an" object are also intended to mean one of possibly multiple such objects.

The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.

An embodiment of the present invention provides a battery pack cover plate structure, please refer to fig. 1 to 5, the battery pack cover plate structure includes a top cover 12 and a fixing member 30, a fitting portion 121 is disposed on the top cover 12, the fitting portion 121 extends along a first direction to penetrate through the top cover 12, the first direction is perpendicular to a thickness direction of the top cover 12, and the fixing member 30 is disposed in the fitting portion 121; wherein the fitting part 121 includes a fixing hole and a fixing groove.

The utility model discloses a group battery apron structure of an embodiment includes top cap 12 and mounting 30, be provided with on the top cap 12 along the first direction cooperation portion 121 that runs through top cap 12, and the thickness direction of first direction perpendicular to top cap 12, through wearing to locate mounting 30 in cooperation portion 121, thereby can make top cap 12 be connected with other structures through mounting 30, with this make things convenient for being connected of group battery apron structure and other structures, and because cooperation portion 121 includes fixed orifices and fixed slot, not only can guarantee the joint strength of mounting 30 and cooperation portion 121, and can reduce the whole quality of top cap 12, thereby improve the performance of group battery apron structure.

It should be noted that the top cover 12 of the battery cover structure can be connected to other structures through the fixing members 30, for example, the top cover 12 can be connected to the fixing frame through the fixing members 30, or the top cover 12 can be connected to another battery cover structure through the fixing members 30, or the top cover 12 can be connected to the box body through the fixing members 30.

Because cooperation portion 121 includes fixed orifices and fixed slot, the mounting 30 is worn to locate inside the fixed orifices to guarantee the joint strength of mounting 30 and top cap 12, and the mounting 30 is worn to locate inside the fixed slot, thereby guarantee the flexibility of being connected of mounting 30 and top cap 12, and can avoid the whole weight of top cap 12 great.

In one embodiment, as shown in fig. 2 and 3, the matching portion 121 includes a first section 1211, a second section 1212, and a third section 1213, two ends of the first section 1211 are respectively connected to the second section 1212 and the third section 1213, the first section 1211 includes a fixing groove, and the second section 1212 and the third section 1213 form a fixing hole, which not only can ensure that the fixing member 30 can reliably penetrate through the top cover 12, but also can prevent the top cover 12 from having a large thickness, thereby reducing the overall weight of the top cover 12 and improving the performance of the battery pack. Furthermore, the arrangement of the fixing groove can facilitate the wiring of the circuit board, namely, when the circuit board is crossed with the fixing groove, the structure that the circuit board can be relatively flat and pass through the fixing groove can be ensured. The both ends of cooperation portion 121 are the hole, and the middle design that is the groove can prevent that mounting 30 from taking place to buckle when the atress to influence the later stage and dismantle.

In one embodiment, the second and third sections 1212, 1213 are circular holes, the first section 1211 is a groove, the second and third sections 1212, 1213 ensure that the fixing element 30 is fixed to the top cover 12, and the first section 1211 forms a limiting protection for the fixing element 30, and the groove reduces the weight of the top cover 12 relative to the circular holes, for example, by forming an additional rib on a flat plate to form a groove, and by locally thickening the opposite ends of the top cover 12 to form circular holes.

It should be noted that the first section 1211 may be a groove as a whole, or the first section 1211 may be a part of a groove and a part of a circular hole, for example, the top cover 12 may be provided with a rib 1222, and the rib 1222 and the top cover 12 may form a part of the first section 1211.

In one embodiment, as shown in fig. 3 and 5, a protrusion 129 is formed on one side of the top cover 12 facing away from the fixing groove, at least part of the protrusion 129 is formed on at least part of the matching part 121, and at least part of the protrusion 129 is located between two adjacent batteries 13, so that not only can a gap between the batteries 13 be utilized, but also the fixing member 30 can be prevented from contacting the batteries 13, and thus, the space of the battery pack can be fully utilized, and the energy density of the battery pack can be improved.

The protrusion 129 formed at the side of the top cover 12 facing the battery 13 may have a substantially semicircular structure so that the protrusion 129 is positioned just inside the gap formed above the two cylindrical batteries, thereby making full use of the inner space of the battery pack. Further, the need for a large thickness of the top cover 12 to accommodate the fixing member 30 can be avoided, and the weight of the top cover 12 can be reduced to some extent.

In one embodiment, the protrusion 129 is formed with at least a portion of the fixing groove, which not only ensures that the fixing member 30 can be inserted into the protrusion 129 to achieve the connection of the top cover 12, but also the protrusion 129 can utilize the gap between the batteries 13 and prevent the fixing member 30 from contacting the batteries 13, so that the space of the battery pack can be fully utilized to improve the energy density of the battery pack. The projection 129 may also be formed with at least part of the fixing hole.

In one embodiment, as shown in fig. 4, the protrusion 129 is provided with an opening 1291, the opening 1291 is communicated with the matching portion 121, that is, the protrusion 129 is partially cut off, so that the problem that the stress cannot be released due to the whole top cover 12 being squeezed can be avoided, and the opening 1291 is provided so that the stress can be released, which similarly improves a buffer space, so as to avoid crushing the top cover 12.

In one embodiment, a plurality of openings 1291 may be provided on the protrusion 129.

In one embodiment, as shown in fig. 2 to 4, the top cover 12 is provided with a rib 1222, the opening 1291 is disposed opposite to the rib 1222, and since the rib 1222 partially reinforces the structure of the top cover 12, and the opening 1291 is disposed on the protrusion 129 corresponding to the rib 1222, the strength of the top cover 12 can be prevented from being greatly affected, thereby ensuring the structural strength of the top cover 12.

In one embodiment, the extending direction of the stiffener 1222 is perpendicular to the first direction, so that the stiffener 1222 is located above the fixing groove, thereby enabling the stiffener 1222 to shield a portion of the fixing groove and to limit the fixing member 30, thereby improving the connection stability of the fixing member 30.

In one embodiment, as shown in fig. 2 and 4, the ribs 1222 form a receiving groove 122, and the receiving groove 122 can be used for receiving a structure such as a circuit board, thereby realizing reliable protection of the structure such as the circuit board.

It should be noted that, a plurality of ribs 1222 may be disposed on the top cover 12, the ribs 1222 may form a structure such as the receiving groove 122, the first section 1211, and the like, and the ribs 1222 are not limited in detail herein, and on the basis of enhancing the strength of the top cover 12, the ribs 1222 may form a structure such as a through hole, a groove, and the like by increasing the thickness of the top cover 12, so as to reduce the weight of the top cover 12 to a certain extent.

In one embodiment, the securing member 30 comprises a bolt that is disposed through the top cover 12.

The bolts may be threadably engaged with the rim to securely fasten the bolts to the top cover 12.

Alternatively, the fixing member 30 may further include a nut through which the bolt passes through the top cover 12 so as to be connected, which not only ensures that the bolt is reliably fixed to the top cover 12, but also facilitates the operation. One end of the bolt may be connected to a nut, or both ends of the bolt may be connected to nuts.

In one embodiment, the bolt may be a plastic piece. Or, the bolt is a metal piece, which not only can ensure the structural strength, but also can improve the fixing capacity of the bolt to the top cover 12.

An embodiment of this practicality still provides a battery pack, includes foretell group battery cover plate structure.

The utility model discloses a battery pack includes group battery apron structure, group battery apron structure includes top cap 12 and mounting 30, be provided with on the top cap 12 along the first direction cooperation portion 121 that runs through top cap 12, and the thickness direction of first direction perpendicular to top cap 12, through wearing to locate the mounting 30 in cooperation portion 121, thereby can make top cap 12 be connected with other structures through mounting 30, with this make things convenient for being connected of group battery apron structure and other structures, and because cooperation portion 121 includes fixed orifices and fixed slot, not only can guarantee the joint strength of mounting 30 and cooperation portion 121, and can reduce top cap 12 overall quality, thereby improve battery pack's performance.

In one embodiment, as shown in fig. 1, the battery assembly further includes a fixing frame 11, the fixing frame 11 being provided with a fixing through hole 117, the fixing through hole 117 extending in a first direction; the fixing member 30 is inserted into the fixing through hole 117 and the fitting portion 121, so that the fixing frame 11 and the top cover 12 are reliably fixed.

In one embodiment, as shown in fig. 5, the battery assembly further includes a plurality of batteries 13, and the batteries 13 are fixed to the fixing frame 11 and located below the top cover 12, that is, the fixing frame 11 and the top cover 12 can achieve effective protection of the plurality of batteries 13.

The fixing member 30 is inserted into the top cover 12, so that the insulation between the fixing member 30 and the battery 13 and other conductive members in the battery assembly 10 can be improved, and the fixing member 30 does not need to be insulated, thereby avoiding increasing the diameter of the fixing member 30, and ensuring the accuracy of the insertion of the fixing member 30. Simultaneously, when the bolt was chooseed for use to mounting 30, the difficult spraying of coating of bolt screw thread department to this kind of insulating mode also has the problem of insulation failure along with colliding with in the later stage use, and in this embodiment, mounting 30 wears to locate top cap 12 and can avoid above-mentioned problem completely.

In one embodiment, the batteries 13 are cylindrical batteries, the length direction of the batteries 13 is parallel to a first direction, and at least two of the batteries 13 are arranged along a second direction, wherein the first direction is perpendicular to the second direction.

Referring to fig. 1, a fixing through hole 117 is formed in the fixing frame 11, the fixing through hole 117 extends along a first direction a, an engaging portion 121 is formed in the top cover 12, the engaging portion 121 extends along the first direction a, and the first direction a is perpendicular to a thickness direction of the top cover 12, that is, the engaging portion 121 extends along a length direction or a width direction of the first top cover 12, in this embodiment, the engaging portion 121 may extend along the width direction of the top cover 12, so that the fixing member 30 may be prevented from occupying an arrangement space of the batteries 13, and the battery assembly 10 may be effectively fixed. At least two of the batteries 13 are disposed along a second direction B, which may be a length direction of the top cover 12.

The fixing member 30 extends along the first direction a, the fixing member 30 may be plural, and the fixing members 30 may be spaced along the second direction B.

In certain embodiments, it is not excluded that the battery 13 may be a quadrangular battery.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (13)

1. The cover plate structure of the battery pack is characterized by comprising a top cover (12) and a fixing piece (30), wherein a matching part (121) is arranged on the top cover (12), the matching part (121) extends along a first direction to penetrate through the top cover (12), the first direction is perpendicular to the thickness direction of the top cover (12), and the fixing piece (30) penetrates through the matching part (121);

wherein the fitting part (121) includes a fixing hole and a fixing groove.

2. The battery pack cap plate structure according to claim 1, wherein the fitting part (121) includes a first section (1211), a second section (1212), and a third section (1213), both ends of the first section (1211) are connected to the second section (1212) and the third section (1213), respectively, the first section (1211) includes the fixing groove, and the second section (1212) and the third section (1213) constitute the fixing hole.

3. The battery cover plate structure according to claim 2, wherein the second segment (1212) and the third segment (1213) are both circular holes.

4. The battery cover plate structure according to claim 1, wherein a side of the top cover (12) facing away from the fixing groove is formed with a protrusion (129).

5. The battery pack lid plate structure according to claim 4, wherein the protrusion (129) is formed with at least a part of the fitting portion (121).

6. The battery pack cover plate structure according to claim 4, wherein the protrusion (129) is provided with an opening (1291), and the opening (1291) communicates with the fitting part (121).

7. The battery cover plate structure according to claim 6, wherein the top cover (12) is provided with a reinforcing rib (1222), and the opening (1291) is disposed opposite to the reinforcing rib (1222).

8. The battery pack cover plate structure according to claim 7, wherein the reinforcing bead (1222) extends in a direction perpendicular to the first direction such that the reinforcing bead (1222) is positioned above the fixing groove.

9. The battery cover plate structure according to claim 7, wherein the reinforcing ribs (1222) form receiving grooves (122).

10. A battery pack characterized by comprising the battery pack lid plate structure according to any one of claims 1 to 9.

11. The battery pack according to claim 10, further comprising a fixing frame (11), wherein a fixing through hole (117) is provided in the fixing frame (11), and the fixing through hole (117) extends in the first direction;

the fixing piece (30) penetrates through the fixing through hole (117) and the matching part (121).

12. A battery assembly according to claim 11, characterized in that it further comprises a plurality of batteries (13), said batteries (13) being fixed to said fixed frame (11) and being located below said top cover (12).

13. The battery assembly according to claim 12, wherein the batteries (13) are cylindrical batteries, the length direction of the batteries (13) is parallel to the first direction, and at least two of the batteries (13) are arranged in a second direction, the first direction being perpendicular to the second direction.

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