CN219163584U

CN219163584U - Battery pack for starting

Info

Publication number: CN219163584U
Application number: CN202223424256.4U
Authority: CN
Inventors: 邢建广; 陈智伟; 陈朝海
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-09
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a battery pack for starting, which comprises an outer box body; the module support is arranged in the outer box body, and reinforcing ribs are arranged on the outer wall of the module support; the reinforcing ribs act on the outer box body to press and pre-tighten the module support inwards, and support and protection are provided for the module support; through set up the strengthening rib in the outside of module support, the setting of strengthening rib has increased the intensity of module support, and when the battery module was installed in the module support, the strengthening rib can extrude with the inner wall butt of outer box, therefore the module support can inwards provide pretension for the battery module in the module support, and the strengthening rib provides the buffer protection when extrusion collision for the battery module.

Description

Battery pack for starting

Technical Field

The utility model relates to the field of batteries, in particular to a battery pack for starting.

Background

The battery is used as the energy storage product and is widely used in a plurality of fields, a plurality of battery modules can be included in one battery pack, a module support can be arranged on an existing battery pack for installing a plurality of battery modules, the module support is installed in an outer box body, and the outer side wall of the module support is directly attached to the inner wall of the outer box body.

From this, the lateral wall of module support and outer box inner wall have the following problem of direct butt: firstly, the module support does not have enough strength to ensure the pretension of the battery module; secondly, when the battery pack is extruded and collided, the module support cannot provide buffer protection for the battery module.

Disclosure of Invention

In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a battery pack for starting, wherein a reinforcing rib is disposed on a module support and is located between an outer case and the module support, the reinforcing rib increases the strength of the module support and provides a pretension for a battery module in the module support, and the reinforcing rib provides a buffer protection for the battery module during extrusion collision.

A battery pack for starting, comprising:

an outer case;

the module support is arranged in the outer box body, reinforcing ribs are arranged on the outer wall of the module support, and act on the outer box body to enable the module support to be pressed inwards for pre-tightening, and the module support is supported and protected.

Further, the reinforcing rib comprises a first rib, and the first rib is arranged on the outer wall of the outer box body.

Further, the reinforcing rib further comprises a second rib, and the second rib is arranged on the outer wall of the outer box body and is intersected with the first rib.

Further, the first ribs and the second ribs are perpendicularly crossed.

Further, still include CCS and BMS, the module support is equipped with the screw post, CCS with BMS connects respectively the screw post.

Further, structural adhesive is filled between the module support and the outer box body so as to bond and fix the module support and the outer box body.

Further, the box cover is covered on the outer box body;

one of the outer box body and the box cover is provided with a sealing groove, the other one is provided with a mounting protrusion, and the mounting protrusion is assembled in the sealing groove so as to cover the box cover on the outer box body.

Further, the anti-explosion device also comprises an anti-explosion valve, a communication interface and positive and negative terminals, wherein the anti-explosion valve and the communication interface are arranged on the box cover, and/or the positive and negative terminals are locked and attached to the box cover through locking pieces, and/or the anti-explosion valve is clamped with the box cover.

Further, sealing rings are respectively arranged at the joints of the explosion-proof valve, the communication interface and the positive and negative terminals and the box cover.

In summary, the battery pack for starting provided by the utility model has the following technical effects:

1) The reinforcing ribs are arranged on the module support and located between the outer box body and the module support, so that the strength of the module support is increased, pre-tightening is provided for the battery module in the module support, and the reinforcing ribs provide buffer protection for the battery module during extrusion collision;

2) The first ribs are arranged on the module support, or the second ribs are additionally arranged on the basis of the first ribs, and the two ribs are arranged in a crossing manner, so that the fixing and pre-tightening effects of the reinforcing ribs are enhanced;

3) The CCS and the BMS are integrated on the module support, the explosion-proof valve, the communication interface and the positive and negative terminals are integrated on the box cover, and the integrated arrangement of all the components is beneficial to the standard arrangement and layout of all the component circuits of the battery pack, so that the problem of short circuit or other problems caused by disorder of the circuits is avoided;

4) Sealing rings are respectively arranged at the joints of the explosion-proof valve, the communication interface and the positive and negative terminals and the case cover, so that the tightness of the connection of the explosion-proof valve, the communication interface and the positive and negative terminals with the case cover is improved;

5) The structure of the mounting bulge and the sealing groove is adopted between the outer box body and the box cover for mounting, and the framework adhesive is added in the assembly of the mounting bulge and the sealing groove, so that the tightness of the assembly of the outer box body and the box cover is facilitated;

6) The explosion-proof valve is connected with the box cover in a clamping way so as to be detachable on the box cover, and the explosion-proof valve can be detached more conveniently for the installation and replacement of the explosion-proof valve.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of a module support and a stiffener according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of the present utility model.

Wherein the reference numerals have the following meanings:

1. an outer case; 2. a module support; 3. reinforcing ribs; 31. a first rib; 32. second ribs; 4. a case cover; 5. sealing grooves; 6. mounting the bulge; 7. a battery module; 8. an explosion-proof valve; 9. a communication interface; 10. positive and negative terminals.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

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.

Example 1

Referring to fig. 1, 2 and 4, the present utility model discloses a battery pack for starting, comprising:

an outer case 1;

referring to fig. 3, a module support 2 is installed in an outer case 1, and the module support 2 has a square structure surrounded by four sidewalls; the module support 2 is provided with a reinforcing rib 3, the reinforcing rib 3 is located between the outer case 1 and the module support 2, that is, the reinforcing rib 3 is disposed on the outer sidewall of the module support 2.

Preferably, the reinforcing rib 3 comprises a plurality of first ribs 31, and the plurality of first ribs 31 are vertically arranged at uniform intervals along the height direction of the side wall of the outer box body 1.

In particular, in the present embodiment, the first ribs 31 include long ribs and short ribs, the length of the long ribs is equal to the height of the module support 2, and the length of the short ribs is one third of the height of the module support 2; the long ribs are oppositely arranged on two outer side walls of the module support 2; the other two opposite outer side walls of the module support 2 are provided with short ribs, and the short ribs are arranged at the bottom of the outer side wall; it should be noted that, the heights of the long ribs and the short ribs may be determined according to the distance from the outer side wall to the inner side wall of the nearby outer box 1, so that the side surface of the first rib 31 away from the module support 2 is abutted with the inner side wall of the outer box 1.

The meaning of the first rib 31 being divided into long and short ribs is that: the long ribs or the short ribs can be selected according to the clearance between the module support 2 and the outer box body 1 or the position avoidance relation between the first ribs and each part of the battery pack, so that the purpose of flexible application is realized.

Referring to fig. 4, the battery module 7 is mounted in the module support 2, the battery module 7 forms a compression on the inner wall of the module support 2 (i.e. the outer wall of the battery module 7 is tightly attached to the inner wall of the module support 2), so that the first ribs 31 on the outer wall of the module support 2 are tightly abutted against the outer case 1, and the module support gives an inward tightening force to the battery module 7, so as to pretighten the battery module 7 through the compression relationship of the first ribs 31.

From the above, the strength of the module support 2 is increased by arranging the reinforcing ribs 3 on the outer side of the module support 2 (that is, the reinforcing ribs 3 are located between the outer case and the module support), when the battery module 7 is mounted on the module support 2, the reinforcing ribs 3 are pressed against the inner wall of the outer case 1, so that the module support 2 can provide pretension to the battery module 7 in the module support 2 inwards, and the reinforcing ribs 3 provide buffer protection for the battery module 7 during pressing collision.

Preferably, in order to improve the strength of the first rib 31, especially the strength of the long rib, the reinforcing rib 3 further includes a second rib 32, the length of the second rib 32 is equal to the length of the outer sidewall where the long rib is located, and the height of the second rib 32 is identical to the height of the first rib 31; the second ribs 32 are uniformly arranged on the outer side wall of the module support 2 where the long ribs are located at intervals and are mutually perpendicular to the long ribs.

It is known from the above that the second ribs 32 and the first ribs are arranged in a crossing manner, and the two ribs are mutually supported, so that the supporting strength of the long ribs is enhanced by the arrangement of the second ribs 32, the reinforcing ribs 3 are better prevented from being deformed and damaged, and the reliability of the reinforcing ribs 3 is enhanced.

Preferably, in order to ensure the installation of the module support 2 in the outer box 1, the module support 2 and the outer box 1 are fixedly connected through structural adhesive; specifically, the structural adhesive is smeared on the inner wall of the outer box body 1 or filled in the reinforcing ribs 3, and after the module support 2 is installed in the outer box body 1, the structural adhesive is used for fixedly adhering the reinforcing ribs 3 and the outer box body 1, so that the installation stability of the module support 2 is improved.

The long ribs and the short ribs may be disposed at any angle on the outer side surface of the module support 2, and the intersecting angle between the second ribs 32 and the long ribs may be any angle.

Other possible arrangements of the reinforcing bars 3 include: the reinforcing ribs 3 on the outer side of the module support 2 can be provided as long ribs or short ribs.

The outer side surface where the short ribs are located can be provided with the second ribs 32, the height of the second ribs 32 is equal to that of the short ribs, and the second ribs 32 are arranged in a crossing manner with the short ribs.

It can be appreciated that the battery module 7 is disposed in a closed space, so that the opening of the outer case 1 is covered by the case cover 4, so that the tightness between the outer case 1 and the case cover 4 is better, in this embodiment, the sealing groove 5 is disposed at the opening of the outer case 1, the mounting protrusion 6 is disposed on one side of the case cover 4 covered by the outer case 1, when the case cover 4 is covered by the outer case 1, the mounting protrusion 6 is embedded in the sealing groove 5, and more preferably, structural adhesive is disposed in the mounting protrusion 6 and the sealing groove 5, so that the sealing between the outer case 1 and the case cover 4 is reinforced by the structural adhesive.

Referring to fig. 2, in other embodiments, the sealing groove 5 may be provided on the case cover 4, and the corresponding mounting protrusion 6 may be provided on the outer case 1, which may also be used to assemble and seal the outer case 1 with the thermal case cover 4.

Therefore, the structure of the mounting protrusion 6 and the sealing groove 5 can be adopted for mounting between the outer box body 1 and the box cover 4, so that the assembly tightness of the outer box body 1 and the box cover 4 is facilitated, and the disassembly of the box cover 4 and the outer box body 1 caused by collision and the like of the battery pack is effectively prevented; meanwhile, the sealing performance of the box cover 4 and the outer box body 1 is good, external dust or water vapor and the like can be prevented from entering the battery pack, the short circuit and other problems of the battery pack are avoided, the safety and the reliability of the battery pack are improved, and the use safety of the battery pack is guaranteed.

Example two

On the basis of the first embodiment, referring to fig. 4, further, the battery pack further includes CCS (Cells Contact System, i.e., an integrated busbar) and BMS (battery management system) disposed on the module support 2; specifically, a screw column is arranged on the module support 2, the CCS is connected to the screw column, and one end of the CCS is welded with the battery module 7; and the BMS are provided on the CCS, that is, the CCS and the BMS are integrated on the module support 2.

The explosion-proof valve 8, the communication interface 9 and the positive and negative terminals 10 are integrally arranged on the box cover 4;

the explosion-proof valve 8 is arranged on the box cover 4; specifically, the one end ring of explosion-proof valve 8 is equipped with a plurality of shell fragments, is provided with the joint arch on the outside of shell fragment, and case lid 4 is provided with the mounting hole that is used for explosion-proof valve 8 installation, and the shell fragment is pegged graft in the mounting hole so that the bellied joint of joint is kept away from one side of explosion-proof valve 8 in the mounting hole, consequently can know that explosion-proof valve 8 and joint are protruding to be spacing at the both ends of mounting hole respectively to with explosion-proof valve 8 joint on case lid 4.

The communication interface 9 is arranged on the case cover 4, and the communication interface 9 is connected to the inside of the battery pack through a communication line.

The positive and negative terminals 10 are locked to the case cover by a locking member, preferably a nut.

Sealing rings are respectively arranged between the explosion-proof valve 8 and the box cover 4, between the communication interface 9 and the box cover 4 and between the positive and negative terminals 10 and the box cover 4, and the connection between the two parts is tighter through the sealing rings.

In this embodiment, CCS and BMS are integrated in module support 2, explosion-proof valve 8, communication interface 9 and positive and negative terminal 10 are integrated in case lid 4, and the integration of each part sets up the standard that is favorable to each part circuit of battery package and lays, avoids the circuit disorder to lead to and decides short circuit or other problems, improves the security and the reliability of battery package.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A battery pack for starting, characterized in that: comprising

An outer case (1);

the module support (2) is arranged in the outer box body (1), a reinforcing rib (3) is arranged on the outer wall of the module support (2), and the reinforcing rib (3) acts on the outer box body (1) to inwards extrude and pre-tighten the module support (2) and provide support protection for the module support (2).

2. The starting battery pack according to claim 1, wherein: the reinforcing rib (3) comprises a first rib (31), and the first rib (31) is arranged on the outer wall of the outer box body (1).

3. The starting battery pack according to claim 2, wherein: the reinforcing rib further comprises second ribs (32), and the second ribs (32) are arranged on the outer wall of the outer box body (1) and are mutually intersected with the first ribs (31).

4. A starting battery pack as defined in claim 3, wherein: the first ribs (31) and the second ribs (32) are perpendicularly crossed.

5. The starting battery pack according to claim 1, wherein: still include CCS and BMS, module support (2) are equipped with the screw post, CCS with BMS connects respectively the screw post.

6. The starting battery pack according to claim 1, wherein: structural adhesive is filled between the module support (2) and the outer box body (1), so that the module support (2) and the outer box body (1) are adhered and fixed.

7. A starter battery pack according to any one of claims 1 to 6, wherein: the novel box cover is characterized by further comprising a box cover (4), wherein one of the outer box body (1) and the box cover (4) is provided with a sealing groove (5), the other one of the outer box body and the box cover is provided with a mounting protrusion (6), and the mounting protrusion (6) is assembled in the sealing groove (5) so as to cover the box cover (4) on the outer box body (1).

8. The starting battery pack according to claim 7, wherein: the anti-explosion device is characterized by further comprising an anti-explosion valve (8), a communication interface (9) and an anode and cathode terminal (10), wherein the anti-explosion valve (8) and the communication interface (9) are arranged on the box cover (4) and/or the anode and cathode terminal (10) is locked on the box cover (4) through a locking piece, and/or the anti-explosion valve (8) is clamped with the box cover (4).

9. The starting battery pack according to claim 8, wherein: and sealing rings are respectively arranged at the joints of the explosion-proof valve (8), the communication interface (9) and the positive and negative terminals (10) and the box cover (4).