CN206312983U

CN206312983U - Battery case

Info

Publication number: CN206312983U
Application number: CN201621416422.8U
Authority: CN
Inventors: 王康玉; 林久标; 钱木; 罗宗祥
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2017-07-07
Anticipated expiration: 2026-12-22

Abstract

The utility model provides a kind of battery case, and battery case includes：Lower box；Lid, is sealedly and fixedly connected with lower box；Battery case also includes：Support arm, positioned at the lower section of lower box and is fixed on lower box；Intensive aspect, between support arm and lower box and at least with support arm and lower box in it is one of fixed.In battery case of the present utility model, support arm and intensive aspect form anticollision and extrusion structure together, and support arm can be used for providing the connection with the machinery (such as the vehicle body of vehicle) for installing battery case, so as to provide not only anticollision and extrusion structure, and the structural behaviour of support arm and intensive aspect is given full play to.

Description

Battery case

Technical field

The utility model is related to electric automobile field, more particularly to a kind of battery case.

Background technology

With the development of riding electric automobile, big course continuation mileage, safe and reliable new-energy automobile are increasingly becoming people's Expect.The security performance of battery bag is the most important index of technological development.The body structure of current battery bag is all to use metal plate Stamping parts, in order to the weight for mitigating battery bag improves group efficiency, casing is formed using relatively thin overall sheet material, causes whole electricity The casing mode of Chi Bao, rigidity and intensity are not enough, so that the casing of whole battery bag cannot meet requirement of mechanical strength.This Outward, the casing of battery bag lacks and prevents hitting anti-extrusion structure, in the case where vehicle collides and extrudes, is easily expressed to electricity The internal structure of the casing of Chi Bao, so as to produce secondary security incident.

Currently in order to the mode of the casing of whole battery bag, rigidity and intensity are improved, frequently with following means：1. battery bag Casing external structure use thicker sheet material, mode, rigidity and the intensity of the casing of whole battery bag is improved, But the weight of battery bag can be greatly increased；2. extra collision and extruding safeguard structure is designed, and this safeguard structure uses metal plate Golden stamping parts, hits the extruding requirement then larger structure in needs section, it is therefore desirable to larger installing space to meet anti-collision, Usual this space requirement is to meet；3. the casing of usual battery bag has preferably machinery strong with the mounting structure of vehicle Degree, but the casing of battery bag is independent with the mounting structure and safeguard structure of vehicle, therefore structure is not played fully Performance.

Utility model content

In view of the defect that prior art is present, the purpose of this utility model is to provide a kind of battery case, and it can not only Collision and extrusion structure are provided, and have given full play to structural behaviour.

To achieve these goals, the utility model provides a kind of battery case, and battery case includes：Lower box；Lid, with Lower box is sealedly and fixedly connected；Battery case also includes：Support arm, positioned at the lower section of lower box and is fixed on lower box；Intensive aspect, Between support arm and lower box and at least with support arm and lower box in it is one of fixed.

The beneficial effects of the utility model are as follows：

In battery case of the present utility model, support arm and intensive aspect form anticollision and extrusion structure, and outer branch together Frame can be used for provide with install battery case machinery (vehicle body of such as vehicle) connection, so as to provide not only anticollision and Extrusion structure, and given full play to the structural behaviour of support arm and intensive aspect.

Brief description of the drawings

Fig. 1 is the exploded perspective view of battery case of the present utility model；

Fig. 2 is the support arm of the battery case of Fig. 1 and the partial exploded perspective view of intensive aspect；

Fig. 3 is the sectional view made along line A-A of Fig. 2；

Fig. 4 is the assembling stereogram of battery case of the present utility model；

Fig. 5 is the enlarged drawing of the encircled portion of Fig. 4；

Fig. 6 is the top view that battery case of the present utility model is loaded on vehicle；

Fig. 7 is the cutaway view Amplified image of the encircled portion made along line C-C of Fig. 6.

Wherein, description of reference numerals is as follows：

The intensive aspect of 1 lower box 4

The intensive aspect beam of 2 lid 41

3 support arm Ph positions

The 31 support arms connector of beam 5

32 bridge piece B vehicle bodies

33 connecting holes

Specific embodiment

Describe in detail according to battery case of the present utility model with reference to the accompanying drawings.

Referring to figs. 1 to Fig. 5, included according to battery case of the present utility model：Lower box 1；Lid 2, it is solid with the sealing of lower box 1 Fixed connection.The battery case also includes：Support arm 3, positioned at the lower section of lower box 1 and is fixed on lower box 1；Intensive aspect 4, is located at Between support arm 3 and lower box 1 and at least with support arm 3 and lower box 1 in it is one of fixed.

In battery case of the present utility model, support arm 3 and intensive aspect 4 form anticollision and extrusion structure together, and outward Support 3 can be used for providing the connection with the machinery (such as the automobile body B of vehicle) for installing battery case, so as to provide not only anti-collision Hit and extrusion structure, and given full play to the structural behaviour of support arm 3 and intensive aspect 4.

For anticollision in horizontal direction all around and the consideration of extruding, in one embodiment, as shown in figure 1, outward Support 3 is set around the whole periphery of lower box 1.Thus, it is possible to realize anticollision on the whole periphery of lower box 1 and squeeze Pressure.

Support arm 3 is fixedly connected to form by multiple support arm beams 31.Each support arm beam 31 is punching press sheet metal component.

Referring to Figures 1 and 2, support 3 also includes：Bridge piece 32, two neighboring support arm beam 31 is fixedly connected.

For the only part anticollision in horizontal direction all around and extruding consideration, in another embodiment, outward Support 3 is set along a part for the whole periphery of lower box 1.Thus, it is possible to realize there is pin on the portion perimeter of lower box 1 Anticollision and extruding to property.

In order to realize the fixation of support arm 3 and lower box 1, support arm 3 is by being fixedly welded on lower box 1, while may be used also Support to lower box 1 is provided.

In order to realize the fixation of support arm 3 and the automobile body B of vehicle, as shown in Figure 6 and Figure 7, support arm 3 is provided with connecting hole 33, battery case also includes：The connecting hole 33 set on connector 5, with support arm 3 coordinates, by support arm 3 and the vehicle body of vehicle B is fixed together.Wherein, connecting hole 33 can be screwed hole, and connector 5 can be bolt, screw.

Set around the whole periphery of lower box 1 with support arm 3 and matched, as shown in figure 1, intensive aspect 4 is around lower box 1 Whole periphery set.Intensive aspect 4 can be directly formed by fixedly connecting successively by multiple intensive aspect beams 41.

Set along a part for the whole periphery of lower box 1 with support arm 3 and matched, intensive aspect 4 is also corresponding with support arm 3 Ground is set along a part for the whole periphery of lower box 1.

According in battery case of the present utility model, intensive aspect 4 can be hollow structure.Because hollow structure itself can be carried For big deformation, therefore can effectively to colliding and squeezing into row buffering.Wherein, intensive aspect beam 41 can be metal tube. Metal tube can be steel pipe.

In order to provide effective anticollision and extruding, intensive aspect 4 at least with support arm 3 and lower box 1 in one of them Fixed, then intensive aspect 4 is fixed with three kinds of modes, and the first is that intensive aspect 4 is fixed on support arm 3, and second is intensive aspect 4 It is fixed on lower box 1, the third is that intensive aspect 4 is fixed with support arm 3 and lower box 1, so that intensive aspect 4 and support arm 3 It is common to play collision and extruding protective action, wherein, fixed form can be welding.

In order to provide effective anticollision and extruding, as shown in figure 5 and figure 7, intensive aspect 4 is clamped in down in the horizontal direction Two position Ph between casing 1 and support arm 3 stagger.This set, should when lower box 1 is subject to the extruding force of horizontal direction Power path decomposes the stress of stress and vertical direction horizontally, so as to the extruding force of horizontal direction can be reduced, effectively drops The deformation of low casing 1.Specifically, in Fig. 5 and Fig. 7, when battery case is subject to the extruding force of T1 directions (i.e. horizontal direction), lead to Being transmitted to up to intensive aspect 4 of support arm 3 is crossed, is produced perpendicular to contact position at the position that support arm 3 and intensive aspect 4 are contacted The extruding force in T2 directions, the extruding force in T2 directions can be analyzed to the pressure of horizontal direction t2 and the pressure of vertical direction t1, wherein, The pressure of vertical direction t1 is directly transferred to the automobile body B of the vehicle being fixedly connected with support arm 3, so that the pressure of vertical direction t1 Absorbed without producing influence on battery case by the automobile body B of vehicle, the pressure that lower box 1 is subject to is the extruding force point in T2 directions The pressure of the horizontal direction t2 after solution so that be applied to the pressure reduction of the horizontal direction of lower box 1.In order to strengthen anticollision and Extruding, as shown in figure 5, intensive aspect 4 goes back in the vertical direction being clamped between lower box 1 and support arm 3.

In terms of material selection, lower box 1 is sheet metal component.Lid 2 is sheet metal component.When lower box 1 and lid 2 are metal plate Part, can greatly mitigate the weight of battery case

Any suitable object is gone for according to battery case of the present utility model, such as object can be multiple battery moulds Group or multiple batteries.When for multiple battery modules, multiple battery modules (can each have housing, it is also possible to percentage of batteries Module portion has a housing and another part battery modules do not have housing) and battery case just constitute the battery bag of background technology, When for multiple batteries, the battery modules that multiple batteries and battery case are just constituted.

Claims

1. a kind of battery case, including：

Lower box (1)；

Lid (2), is sealedly and fixedly connected with lower box (1)；

Characterized in that, the battery case also includes：

Support arm (3), positioned at the lower section of lower box (1) and is fixed on lower box (1)；

Intensive aspect (4), between support arm (3) and lower box (1) and at least with support arm (3) and lower box (1) in its In a fixation.

2. battery case according to claim 1, it is characterised in that support arm (3) sets around the whole periphery of lower box (1) Put.

3. battery case according to claim 1, it is characterised in that support arm (3) is along the one of the whole periphery of lower box (1) Part is set.

4. battery case according to claim 1, it is characterised in that

Support arm (3) is provided with connecting hole (33),

Battery case also includes：On connector (5), with support arm (3) set connecting hole (33) coordinate, by support arm (3) with The vehicle body (B) of vehicle is fixedly connected.

5. battery case according to claim 2, it is characterised in that intensive aspect (4) sets around the whole periphery of lower box (1) Put.

6. battery case according to claim 3, it is characterised in that intensive aspect (4) is with support arm (3) accordingly along lower box (1) part setting of whole periphery.

7. battery case according to claim 1, it is characterised in that intensive aspect (4) is hollow structure.

8. battery case according to claim 1, it is characterised in that intensive aspect (4) is clamped in lower box in the horizontal direction (1) two positions (Ph) and support arm (3) between are staggered.

9. battery case according to claim 1, it is characterised in that intensive aspect (4) goes back in the vertical direction and is clamped in nowel Between body (1) and support arm (3).

10. battery case according to claim 1, it is characterised in that lower box (1) is sheet metal component, and lid (2) is metal plate Part.