CN202839765U

CN202839765U - Battery case and storage battery

Info

Publication number: CN202839765U
Application number: CN2012204426071U
Authority: CN
Inventors: 彭小勐; 张祥
Original assignee: Anhui Leoch Battery Technology Co Ltd
Current assignee: Anhui Leoch Battery Technology Co Ltd
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2013-03-27
Anticipated expiration: 2022-08-31

Abstract

The utility model discloses a battery case and a storage battery. The battery case comprises a case body which comprises at least one saddle bottom used for supporting battery panel railings. The saddle bottom is arranged on the inner side of the bottom of the case body in a protruding mode, and the width of the saddle bottom is larger than the width of a grid in the corresponding battery panel railing. The storage battery comprises the battery panel railings and the battery case. According to the battery case and the storage battery, the width of the saddle bottom of the battery case is arranged to be larger than the width of one grid in one battery panel railing so that when the battery panel railing is placed on the saddle bottom, the contact area between the battery panel railing and the saddle bottom is increased, stress on each single grid is reduced, and therefore the bottom of the battery panel railing is enabled not to be prone to deformation, active substances attached to the battery panel railing are prevented from falling off to cause a short circuit of the storage battery, and quality of the storage battery product can be improved.

Description

A kind of battery case and storage battery

Technical field

The application relates to the storage battery field, relates in particular to a kind of battery case and storage battery.

Background technology

The grid that storage battery adopts generally has the gravity-assist pouring grid and draws in the net two kinds of grids, draws in the net grid owing to can adopt Fully-mechanized production, and production efficiency is higher, and therefore, most of accumulator product all adopts and draws in the net grid.Because draw in the net that grid is thinner, muscle position thin (shown among Fig. 1 101), the material lead that uses softer, and battery case bottom is generally again (shown among Fig. 2-5 102) at the bottom of the thinner thin saddle of rib, please refer to Fig. 5, draw in the net grid bottom with at the bottom of the saddle carefully 102 when cooperating, at the bottom of the thin saddle 102 directly with draw in the net a grid 103 of grid and contact, cause grid 103 very easily to be out of shape, active material comes off easily, active material comes off, be deposited on the battery case bottom and cause easily the short circuit of battery, reduce the performance of accumulator product.

Summary of the invention

First aspect according to the application, the application provides a kind of battery case, comprises housing, and described housing comprises at the bottom of at least one saddle that is used for the support cells grid, projection is located at the housing bottom inboard at the bottom of the described saddle, and the width at the bottom of the described saddle is greater than the width of a grid on the corresponding battery grid.

According to the application's second aspect, the application provides a kind of storage battery, comprises battery grid and above-mentioned battery case, on described battery grid places at the bottom of the saddle of battery case.

The application's beneficial effect is: the width at the bottom of the battery case saddle is arranged to wide than grid on the battery grid, so that battery grid be positioned at the bottom of the saddle on the time, at least simultaneously contact with two or more grids, increased the contact-making surface at the bottom of battery grid and the saddle, reduce stressed on the single grid, and then so that battery grid bottom is difficult for deforming, avoids being attached to active material above the battery grid and come off and cause the storage battery short circuit, can improve the quality of accumulator product.

Description of drawings

Fig. 1 is for drawing in the net the grid schematic diagram;

Fig. 2 is a kind of saddle bottom structure schematic diagram of battery case;

Fig. 3 is the A-A profile of Fig. 2;

Fig. 4 is the structural representation after a partly amplifies among Fig. 3;

Fig. 5 is the schematic diagram that a kind of saddle bottom structure of battery case causes the grid distortion;

Fig. 6 is the saddle bottom structure schematic diagram among the application's battery case embodiment;

Fig. 7 is the A-A profile of Fig. 6;

Fig. 8 is the structural representation after a partly amplifies among Fig. 7.

Embodiment

By reference to the accompanying drawings the present invention is described in further detail below by embodiment.

In the embodiment of the present application, comprise housing, housing comprises that projection is located at the inboard of housing bottom at the bottom of the saddle at the bottom of at least one saddle that is used for the support cells grid, and its width is greater than the width of a grid on the corresponding grid.Width at the bottom of the battery case saddle is arranged to wide than grid lattice on the grid, so that grid be positioned at the bottom of the saddle on the time, increased the contact-making surface at the bottom of grid and the saddle, reduce stressed on the single grid, and then so that be difficult for deforming bottom the grid, avoid causing the active material that is attached to above the grid to come off and cause battery short circuit, can improve the quality of battery product.

Embodiment one:

With reference to figure 6-8, present embodiment provides a kind of battery case, comprises housing 201, and housing 201 comprises at the bottom of at least one saddle that is used for support cells grid 203 202,202 projections are located at housing 201 bottom inside at the bottom of the saddle, and 202 width is greater than the width of a grid on the corresponding battery grid 203 at the bottom of the saddle.

At the bottom of adopting thin saddle with prior art, width can only be used for supporting single grid and compare, 202 width at the bottom of the increase saddle in the present embodiment, can support simultaneously a plurality of grids, therefore increased at the bottom of the bottom of battery grid 203 and the saddle 202 contact area, make single grid stressed less, battery grid 203 is not yielding, is attached to the yet difficult drop-off of active material above the battery grid 203.

Preferably, 202 is three-dimensional trapezium structure at the bottom of the saddle, is evenly arranged in the bottom of housing 201 at the bottom of the saddle of a plurality of three-dimensional trapezium structures.Adopt trapezium structure, can increase as much as possible at the bottom of the saddle 202 with the contact area of battery grid 203, also can avoid the accumulation of the active material that battery grid 203 splits away off under normal operating position simultaneously, avoid causing short circuit.

Preferably, 202 height is identical at the bottom of all saddles, can guarantee at the bottom of the saddle that 202 is large as much as possible with the contact area of battery grid 203, simultaneously also better balance at the bottom of the saddle 202 and grid between stressed, make it stressed evenly, battery grid 203 is more not yielding.

In the present embodiment, 202 quantity is two at the bottom of the saddle, and is symmetrical set in housing 201 bottoms.Certainly, the quantity at the bottom of the saddle can be that those skilled in the art select according to actual conditions.

Preferably, housing 201 bottoms also are provided with the cell body 204 of the active material that comes off on the battery grid 203 for deposition, and cell body 204 202 arranges at the bottom of the saddle.In use, when the active material on the battery grid 203 comes off, can not be stacked on the saddle basal surface, but fall in the cell body 204, avoid battery short circuit owing to active material.

The battery case that present embodiment provides only need to change mould in the basis of battery case at the bottom of original saddle when producing, can save the cost that produces because opening new die.

Embodiment two:

Present embodiment provides a kind of storage battery, comprises the battery case in battery grid and above-described embodiment, on battery grid places at the bottom of the saddle of battery case, by supporting at the bottom of the saddle.

Battery grid can be the gravity-assist pouring grid or draw in the net grid, is placed with battery separator between per two battery grids, is used for preventing short circuit between the battery grid.

For the gravity-assist pouring grid, preferred, the width at the bottom of the saddle of battery case is set at the width greater than three grids.

The storage battery that present embodiment provides, have larger contact area at the bottom of the saddle of its battery case and between the battery grid, so that it is not each grid of battery grid is stressed less, yielding, the active material that is attached on the battery grid also is difficult for causing the storage battery short circuit because the battery grid distortion comes off.

Above content is the further description of the present invention being done in conjunction with concrete execution mode, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace.

Claims

1. battery case, it is characterized in that, comprise housing (201), described housing (201) comprises (202) at the bottom of at least one saddle that is used for support cells grid (203), (202) projection is located at housing (201) bottom inside at the bottom of the described saddle, and the width of (202) is greater than the width of the upper grid of corresponding battery grid (203) at the bottom of the described saddle.

2. battery case as claimed in claim 1 is characterized in that, (202) are three-dimensional trapezium structure at the bottom of the described saddle.

3. battery case as claimed in claim 1 is characterized in that, the height of (202) is identical at the bottom of all described saddles.

4. battery case as claimed in claim 1 is characterized in that, (202) are two at the bottom of the described saddle, and is symmetrical set in housing (201) bottom.

5. battery case as claimed in claim 1 is characterized in that, described housing (201) bottom is provided with the cell body (204) for the active material that comes off on the deposition battery grid (203), and (202) arranged at the bottom of described cell body (204) centered on saddle.

6. a storage battery comprises battery grid, it is characterized in that, also comprises each described battery case such as claim 1-5, on described battery grid places at the bottom of the saddle of battery case.

7. storage battery as claimed in claim 6 is characterized in that, described battery grid is gravity casting plate grid or draws in the net grid.

8. storage battery as claimed in claim 7 is characterized in that, when battery grid was gravity casting plate grid, the saddle bottom width degree of described battery case was greater than the width of three grids on the battery grid.

9. storage battery as claimed in claim 6 is characterized in that, comprises that also be used to the battery separator that prevents short circuit between the battery grid, described battery separator is placed between the battery grid.