CN206546836U

CN206546836U - Battery bag

Info

Publication number: CN206546836U
Application number: CN201720272476.XU
Authority: CN
Inventors: 周灵刚; 王德荣; 王庆; 王鹏; 包聪
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2017-03-20
Filing date: 2017-03-20
Publication date: 2017-10-10
Anticipated expiration: 2027-03-20

Abstract

The application is related to battery bag, the battery bag includes casing, battery modules, battery monitoring unit and sealing device, the battery modules are arranged on the box house, the casing includes case lid, there is mounting hole on the case lid, the sealing device is arranged at the mounting hole, the battery monitoring unit is arranged on outside the case lid by the sealing device, the sealing device includes supporting structure, fastener and first seal and second seal, the first seal and the second seal are placed on case lid both sides, in the side of the case lid, the first seal is placed between the supporting structure and the case lid, in the opposite side of the case lid, the second seal is placed between the case lid and the battery monitoring unit, the fastener runs through and locks the supporting structure, the first seal, the case lid, the second seal, the battery monitoring unit.The battery bag can guarantee that the air-tightness inside case lid.

Description

Battery bag

Technical field

The application is related to energy storage device technical field, more particularly to a kind of battery bag.

Background technology

In the installation process of various equipment, the situation for needing to carry out sealing structure can be usually run into, for example, in order to realize The function of the voltage acquisition of cell, voltage backup and temperature acquisition around battery modules, it is necessary to install battery cell monitoring list Member.Usual battery monitoring unit is all positioned over the inside of the casing of battery bag, therefore battery monitoring unit can be occupied in casing A part of space, wastes the space in casing.

Battery monitoring unit can be arranged to the outside of case lid in the prior art, the perforate on case lid is now needed, with Ensure that battery monitoring unit can obtain the related data of battery cell, at this moment relate to the sealing at aforementioned apertures.One kind side Can use the sealed structure of individual layer in case, but such a structure institute's tapping can be caused to exist on case lid air-tightness is bad to ask Topic.

Utility model content

This application provides a kind of battery bag, the tapping of case lid can be made to keep good air-tightness.

This application provides a kind of battery bag, including casing, battery modules, battery monitoring unit and sealing device, institute Battery modules are stated installed in the box house, the casing includes having mounting hole on case lid, the case lid, the sealing dress Put and be arranged at the mounting hole, the battery monitoring unit is arranged on outside the case lid by the sealing device, described Sealing device includes supporting structure, fastener and first seal and second seal, the first seal and described the Two seals are placed on case lid both sides, and in the side of the case lid, the first seal is placed on the supporting structure and institute State between case lid, in the opposite side of the case lid, the second seal is placed on the case lid and the battery monitoring unit Between, the fastener runs through and locks the supporting structure, the first seal, the case lid, the second seal, The battery monitoring unit.

Preferably, the fastener is fixed on the supporting structure.

Preferably, in addition to the first position limiting structure, the side of first position limiting structure can be compressed with the case lid matches somebody with somebody Close, opposite side can with the fastener or the supporting structure on locking direction relative positioning, the locking direction is The second seal points to the direction of the first seal.

Preferably, the first seal is enclosed on first position limiting structure.

Preferably, the fastener includes the connecting portion coordinated with the supporting structure, first position limiting structure and institute State connecting portion relative positioning on the locking direction.

Preferably, the supporting structure includes rack body and convex portion, the rack body and convex portion connection, described Fastener passes through the convex portion, and the first seal is located between the convex portion and the case lid, and the convex portion is relative to institute Rack body protrusion is stated, the protrusion direction of the convex portion is away from the case lid direction.

Preferably, in addition to the second position limiting structure, second position limiting structure is placed on the case lid and battery prison Between control unit, and the both sides of second position limiting structure compress cooperation with the case lid and the battery monitoring unit respectively.

Preferably, there is perforation, the fastener passes through the perforation, the described second spacing knot in the second seal Structure is located in the perforation.

Preferably, the sealing device is set to multiple, the second seal formation integral type knot of each sealing device Structure.

The technical scheme that the application is provided can reach following beneficial effect：

Battery bag provided herein includes casing, battery modules, battery monitoring unit and sealing device, battery mould Group is arranged on box house, and casing includes having mounting hole on case lid, case lid, and sealing device is arranged at mounting hole, battery prison Control unit by sealing device be arranged on case lid outside, sealing device include supporting structure, fastener and first seal and Second seal, in the side of case lid, first seal is placed between supporting structure and case lid, in the opposite side second of case lid Seal is placed between case lid and battery monitoring unit, fastener through and lock bracket structure, first seal, case lid, Second seal, battery monitoring unit, the first seal and second seal for making case lid both sides by clinch fastener are tightened up So as to reach sealed purpose.Obviously, this sealing device is tightened up positioned at case lid both sides while self-contained battery monitoring unit Seal so that case lid tapping maintains good air-tightness.

It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited Application.

Brief description of the drawings

The top view for the battery bag that Fig. 1 is provided by the embodiment of the present application；

Fig. 2 is Fig. 1 B-B direction sectional view；

Sealing device and the sectional view after case lid assembling that Fig. 3 is provided by the present embodiment.

Reference：

1- case lids；

2- fasteners；

21- screws；

22- nuts；

3- supporting structures；

31- rack bodies；

32- convex portions；

4- first seals；

5- second seals；

The position limiting structures of 6- first；

The position limiting structures of 7- second；

8- battery monitoring units.

Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the application Example, and be used to together with specification to explain the principle of the application.

Embodiment

The application is described in further detail below by specific embodiment and with reference to accompanying drawing.

As shown in Figure 1-Figure 3, this application provides a kind of battery bag, including casing, battery modules, battery monitoring unit (being properly termed as CSC) 8 and sealing device, battery modules are arranged on box house, and casing includes having peace on case lid 1, case lid 1 Hole is filled, sealing device is arranged at mounting hole, battery monitoring unit 8 is arranged on outside case lid 1 by sealing device, sealing device Including supporting structure 3, fastener 2, first seal 4, second seal 5, battery monitoring unit 8 can be arranged on by the device On the case lid 1 of battery bag, first seal 4 and second seal 5 are individually positioned in the both sides of case lid 1, and both sides herein refer to respectively Be case lid 1 inner side and outer side.Wherein, first seal 4 is placed between supporting structure 3 and case lid 1, second seal 5 It is placed between battery monitoring unit 8 and case lid 1, fastener 2 can sequentially pass through supporting structure 3, first seal 4, case lid 1st, second seal 5, and supporting structure 3, first seal 4, case lid 1, second seal 5 are locked, supporting structure 3 can be adopted With plate-shaped member, fastener 2 can include the part of two mutual clampings, branch can be realized by the clamping between this two parts Frame structure 3, first seal 4, case lid 1, the locking of second seal 5.First seal 4 and second seal 5 can be preferred For sealing ring.

Description more than, after fastener 2 is tightened up, first seal 4 and second seal 5 are by after external force Compression, can play sealing function, it is ensured that the air-tightness inside case lid 1 inside and outside case lid 1.

In addition, battery monitoring unit 8 can be arranged at the outside of case lid 1, now second seal 5 is also at case lid 1 Outside.

Normal conditions, clinch fastener 2 is needed in self-contained battery monitoring unit 8, tight in order to prevent during locking Firmware 2 occurs to be fixed on supporting structure 3 along the rotation of itself axial direction, preferred fastener 2, accordingly even when by larger external force, Fastener 2 can also lock other structures in the case where not rotating, and also avoid the need for additionally being provided for fixation fastener 2 Structure so that the assembly process of fastener 2 and sealing device and case lid 1 is simpler.

Further, in order to improve the stability of fastener 2, the cooperation of screw 21 and nut 22, fastener 2 are preferably used Including screw 21 and nut 22, specifically, screw 21 can be fixed on supporting structure 3 by way of pressing, in screw 21 After other structures, nut 22 is screwed on screw 21 so that the internal thread of nut 22 coordinates with the external screw thread of screw 21, this When the constantly rotation of nut 22 and close to case lid 1, untill fastener 2 tightens up sealing device and case lid 1.

Nut 22 can constantly compress first seal 4 during tightening up, but first seal 4 is general by rubber etc. Elastomeric material is made, if without restriction to the active force for putting on first seal 4, then the mistake that first seal 4 is compressed The situation of conquassation, therefore settable first position limiting structure 6 may occur in journey, the side of the first position limiting structure 6 can be with case Lid 1 compresses cooperation, opposite side can with supporting structure 3 on locking direction relative positioning, the locking direction is second seal 5 The direction of first seal 4 is pointed to, so during continuous locking, case lid 1 can be under pressure and be subjected to displacement, when first When position limiting structure 6 can mutually be compressed with case lid 1, first seal 4 is sealedly made by compression so as to play to case lid 1 With.The first position limiting structure 6 is set to limit the deformation extent of first seal 4 here, so as to prevent the quilt of first seal 4 Conquassation.

It should be further stated that, first seal 4 can be arranged on the inner side of the first position limiting structure 6, can also set Put in the outside of the first position limiting structure 6, it is preferable that first seal 4 is arranged on the outside of the first position limiting structure 6, so can be with Increase the overall dimensions of first seal 4, when first seal 4 is by the active force for coming self-locking direction, large-sized the One seal 4 can have more preferable stability.

Fastener 2 mentioned above can also include the connecting portion coordinated with the supporting structure 3, when fastener 2 includes During screw 21, the connecting portion can set with the split of screw 21 and fix or be wholely set.First position limiting structure 6 and connecting portion Can being wholely set or be provided separately, still, the first position limiting structure 6 and connecting portion will be in foregoing locking sides Upward relative positioning, the first position limiting structure 6 can be supported directly by the active force and case lid 1 of connecting portion so during locking Pressure, and being compressed without being realized by the indirectly-acting power of other structures with case lid 1, thus avoid other structures because by Deformed compared with noticeable effort.

Supporting structure 3 could be arranged to planar structure, now there is certain interval between supporting structure 3 and case lid 1.But If spacing effect can not be played for some reason by allowing for the first position limiting structure 6, now first seal 4 just have by The risk of conquassation.Therefore, in the application, supporting structure 3 includes rack body 31 and convex portion 32, and rack body 31 and convex portion 32 connect Connect, fastener 2 passes through convex portion 32, first seal 4 is located between convex portion 32 and case lid 1, and convex portion 32 is relative to rack body 31 Protrusion, the protrusion direction of convex portion 32 is the direction away from case lid 1.So, do not worked even in the first position limiting structure 6 When, during locking, rack body 31 can also compress cooperation to play spacing effect with case lid 1, to prevent that first is close Sealing 4 is by conquassation.Preferably, convex portion 32 can be circular protrusions.

It should be further stated that, the highly preferred height for being less than the first position limiting structure 6 of rack body 31, that is, Say, by the first degree that preferentially limitation first seal 4 is compressed of position limiting structure 6.In addition, the edge of rack body 31 can To be set to the turnup structure bent away from the direction of case lid 1, so contribute to strengthen the structural strength of rack body 31.

Second position limiting structure 7 can also similarly, in embodiments herein be set with the first position limiting structure 6, second is spacing Structure 7 is placed between case lid 1 and battery monitoring unit 8, with the continuous rotation of nut 22, when the second position limiting structure 7 and electricity When cell monitoring unit 8, case lid 1 are compressed, second seal 5, which can also be compressed, to be tightened up, so it is prevented that the quilt of second seal 5 Conquassation, while also maintaining the air-tightness of case lid 1.

Further, in order to obtain there is perforation in more preferable air-tightness, second seal 5, fastener 2 passes through perforation, And the second position limiting structure 7 is positioned in perforation.So the size of second seal 5 is considerably increased, it is tight tightening up After firmware 2, second seal 5 can provide more preferable stability.

As depicted in figs. 1 and 2, in order to allow battery monitoring unit 8 to be firmly fixed on case lid 1, it is necessary to it is multiple sealing dress Put to fix, and the second seal 5 of each sealing device formation integral structure, size and the battery of second seal 5 are supervised The size for controlling unit 8 is suitable, so in addition to being arranged on the second seal 5 at each sealing device, in battery cell monitoring The second seal 5 that also has elsewhere of unit 8 is contacted with battery monitoring unit 8, when battery monitoring unit 8 is forced outside When compeling, the second seal 5 that elastomeric material is made can play cushioning effect and allow battery monitoring unit 8 not suffer damage.

The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.

Claims

1. a kind of battery bag, it is characterised in that including casing, battery modules, battery monitoring unit and sealing device, the electricity Pond module is arranged on the box house, and the casing includes having mounting hole on case lid, the case lid, and the sealing device is set Put at the mounting hole, the battery monitoring unit is arranged on outside the case lid by the sealing device, the sealing Device includes supporting structure, fastener and first seal and second seal, the first seal and second seal Be placed on case lid both sides, in the side of the case lid, the first seal be placed on the supporting structure and the case lid it Between, in the opposite side of the case lid, the second seal is placed between the case lid and the battery monitoring unit, described Fastener runs through and locks the supporting structure, the first seal, the case lid, the second seal, the battery Monitoring unit.

2. battery bag according to claim 1, it is characterised in that the fastener is fixed on the supporting structure.

3. battery bag according to claim 1, it is characterised in that also including the first position limiting structure, the described first spacing knot The side of structure can compress cooperation with the case lid, and opposite side can be with the fastener or the supporting structure in locking side Upward relative positioning, the locking direction is the direction that the second seal points to the first seal.

4. battery bag according to claim 3, it is characterised in that the first seal is enclosed on first position limiting structure On.

5. battery bag according to claim 3, it is characterised in that the fastener includes what is coordinated with the supporting structure Connecting portion, first position limiting structure and connecting portion relative positioning on the locking direction.

6. battery bag according to claim 1, it is characterised in that the supporting structure includes rack body and convex portion, institute State rack body and the convex portion connection, the fastener pass through the convex portion, the first seal be located at the convex portion with Between the case lid, the convex portion is protruded relative to the rack body, and the protrusion direction of the convex portion is away from the case lid Direction.

7. battery bag according to claim 1, it is characterised in that also including the second position limiting structure, the described second spacing knot Structure is placed between the case lid and the battery monitoring unit, and second position limiting structure both sides respectively with the case lid Cooperation is compressed with the battery monitoring unit.

8. battery bag according to claim 7, it is characterised in that there is perforation, the fastening in the second seal Part passes through the perforation, and second position limiting structure is located in the perforation.

9. battery bag according to claim 1, it is characterised in that the sealing device is set to multiple, each sealing The second seal formation integral structure of device.