CN213071248U - Shell structure for preventing battery leakage - Google Patents

Abstract

The utility model discloses a shell structure for preventing battery leakage, which comprises a shell; the shell surrounds the battery; the periphery of the shell is provided with a plurality of convex strips which are uniformly arranged and used for dispersing the stress of the shell which is impacted; a buffer structure is arranged at the peripheral side of the shell; wherein, buffer structure sets up on the sand grip, and buffer structure includes the flexbleboard. The beneficial effects are that: the convex strips are provided with buffer structures, when the shell falls, the shell is firstly contacted with the flexible plates, after a part of impact force is absorbed by the flexibility of the flexible plates, the flexible plates are deformed after being impacted, the stress plates can move along with the deformation direction of the flexible plates, the impact force is applied to the reset plates, the reset plates are used for absorbing the impact force in the embodiment, and the protection performance of the shell on the battery after being impacted is improved; simple structure, the impact force that the inside battery of reduction casing received can be effectual.

Description

Shell structure for preventing battery leakage

Technical Field

The utility model relates to a prevent shell structure of battery weeping belongs to the battery equipment field.

Background

Lithium ion rechargeable batteries (Li ion batteries) are widely used as power sources for mobile phones, notebook computers, and the like. In the plate material constituting the Li ion battery case (hereinafter, simply referred to as a battery case), a large amount of metal is used including the lid, and patent documents 1 to 3 disclose battery cases using an iron alloy such as SUS, and patent documents 4 to 9 disclose battery cases using an aluminum alloy. In particular, when the lid, the main body, and the like of the battery case are formed of a molded product obtained by press-molding an aluminum alloy sheet (cold-rolled sheet) material, they are advantageous in terms of corrosion resistance, weight reduction, workability, and cost.

A battery case (hereinafter, simply referred to as a case) as an exterior of the Li ion battery is provided with a safety valve (explosion-proof valve, explosion-proof mechanism) which releases the internal pressure of the battery case to prevent explosion even when the inside thereof becomes high temperature and high pressure in the event of abnormality such as overcharge or the passage of a large current.

The chinese utility model patent publication No. CN206271769U discloses a battery case, in which a receiving space is formed inside the battery case, a set of ports is formed on one side of the battery case, the set of ports is covered by a cover, the battery case is used to receive at least one battery holder, a plurality of battery units are arranged in the battery holder, wherein the battery case is formed by aluminum extrusion, at least four sides are formed on the outer periphery of the battery case, a limit shoulder is formed on the corners of the inner periphery of the battery case, the limit shoulder is used to limit the battery holder,

although the outer circumference of the battery case is convexly provided with a plurality of convex strips, the convex strips are used for dispersing the stress of the battery case caused by impact and dispersing the heat energy generated by the battery unit.

However, when the battery is impacted, the convex strips can be subjected to hard collision, so that the impact force can be quickly transmitted to the battery, and the battery can be also influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent shell structure of battery weeping can effectively solve the problem that takes place to damage behind the battery striking.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the housing includes a shell; the shell surrounds the battery; the periphery of the shell is provided with a plurality of convex strips which are uniformly arranged, and the convex strips are used for dispersing the stress of the shell which is impacted; a buffer structure is further arranged on the outer peripheral side of the shell; wherein, buffer structure sets up on the sand grip, buffer structure includes the flexplate.

The shell is cuboid, and the upper end and the lower end of the shell are provided with ports for placing batteries; the convex strip is formed on the outer side of the shell and integrally processed and formed with the shell; among the buffer structure the flexbile plate install on the sand grip, work as when the casing falls by accident, certain cushioning effect can be played according to the pliability of self to the flexbile plate, prevents battery in the casing produces great rocking because of the striking.

Further, the shaping has the mounting groove between the sand grip, just buffer structure arranges in the mounting groove.

The mounting groove is formed between the convex strips, the convex strips are rectangular strips, the mounting groove is rectangular, the buffer structure is arranged in the mounting groove, so that the flexible plate is mounted on one side of the convex strips, and the flexible plate is arranged in the mounting groove.

Further, the outer side of the flexible plate is convex outwards.

The projection is arc-shaped.

Furthermore, the inboard atress board that is provided with of flexonics board, atress board one end is provided with the board that resets.

Stress plate one end is installed the flexbile plate is inboard, reset the board and install two between the sand grip, and the stress plate other end is installed reset on the board.

Further, the flexible plate and the return plate are made of spring steel.

The spring steel has low cost and good flexibility.

Further, the shell further comprises an upper shell and a bottom shell which are hermetically mounted with the outer shell.

The upper shell and the bottom shell are respectively and hermetically arranged at the upper port and the lower port of the shell.

Further, an electrode and a safety valve are arranged at the upper end of the upper shell.

The electrode is contacted with a battery discharge area, and the safety valve is welded at the upper end of the upper shell.

Compared with the prior art, the utility model has the advantages that:

the convex strips are provided with buffer structures, when the shell falls, the shell is firstly contacted with the flexible plates, after a part of impact force is absorbed by the flexibility of the flexible plates, the flexible plates are deformed after being impacted, the stress plates can move along with the deformation direction of the flexible plates, the impact force is applied to the reset plates, the reset plates are used for absorbing the impact force in the embodiment, and the protection performance of the shell on the battery after being impacted is improved; simple structure, the impact force that the inside battery of reduction casing received can be effectual.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1 is a three-dimensional structure of the present invention;

FIG. 2 is a three-dimensional structure diagram of the housing of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a front view of the present invention;

fig. 5 is a sectional view taken along line a-a in fig. 4.

Description of reference numerals:

1. a housing; 2. a housing; 3. an upper shell; 4. a bottom case; 5. a convex strip; 6. a buffer structure; 601. a flexible board; 602. a stress plate; 603. a reset plate; 7. mounting grooves; 8. an electrode; 9. a safety valve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-5, in an embodiment of the casing structure for preventing the leakage of the battery of the present invention, the casing 1 includes a casing 2; the shell 2 surrounds the battery; a plurality of convex strips 5 which are uniformly arranged are arranged on the peripheral side of the shell 2, and the convex strips 5 are used for dispersing the stress of the shell 2 caused by impact; the periphery of the shell 2 is also provided with a buffer structure 6; wherein, buffer structure 6 sets up on sand grip 5, and buffer structure 6 includes flexplate 601.

The shell 2 is cuboid, and the upper end and the lower end of the shell are provided with ports for placing batteries; the convex strip 5 is formed on the outer side of the shell 2 and is integrally processed and formed with the shell 2; the flexible board 601 in the buffer structure 6 is installed on the convex strip 5, and when the housing 1 falls carelessly, the flexible board 601 can play certain cushioning effect according to the flexibility of itself, and the battery in the housing 1 is prevented from generating great shaking due to the impact.

In this embodiment, mounting grooves 7 are formed between the protruding strips 5, and the buffer structure 6 is disposed in the mounting grooves 7.

The mounting grooves 7 are formed between the protruding strips 5, the shape of the protruding strips 5 is a rectangular strip, so the shape of the mounting grooves 7 is a rectangular groove, since the buffer structure 6 is placed in the mounting grooves 7, so the flexible board 601 is mounted on one side of the protruding strips 5 here, and the flexible board 601 is disposed in the mounting grooves 7.

When the housing 1 is accidentally dropped, the flexible board 601 can play a certain buffering role according to the flexibility of the flexible board and the combination of the convex strips 5, and the battery in the housing 1 is prevented from generating large shaking due to impact.

In this embodiment, the outer side of the flexible board 601 protrudes outward; the projection is arc-shaped.

Because the lateral surface of flexplate 601 of itself flushes with sand grip 5 lateral surface, this bellied setting can make flexplate 601 lateral surface outwards protruding, when casing 1 falls, the first contact be flexplate 601, utilize behind the compliance absorption partly impact of flexplate 601 self, sand grip 5 receives the impact after that for flexplate 601 and sand grip 5 successively cooperate and absorb the impact, improved the protection performance to the battery after casing 1 receives the striking greatly.

In this embodiment, a stress plate 602 is disposed on the inner side of the flexible plate 601, and a reset plate 603 is disposed at one end of the stress plate 602.

The atress board 602 one end is installed at flexbile plate 601 inboard, and the board that resets 603 is installed between two sand grips 5 to the atress board 602 other end is installed on the board that resets 603.

After the flexible plate 601 is deformed by receiving impact, the force-bearing plate 602 moves along with the deformation direction of the flexible plate 601, applies impact force to the reset plate 603, and absorbs the impact force in the embodiment of the reset plate 603, so that the protection performance of the housing 1 to the battery after being impacted is improved.

In this embodiment, the flexible plate 601 and the reset plate 603 are made of spring steel.

The spring steel has low cost and good flexibility.

In this embodiment, the housing 1 further includes an upper shell 3 and a bottom shell 4 hermetically mounted with the outer shell 2.

The upper shell 3 and the bottom shell 4 are respectively and hermetically arranged at the upper port and the lower port of the shell 2.

In this embodiment, the upper end of the upper case 3 is provided with an electrode 8 and a safety valve 9.

The electrode 8 is in contact with the battery discharge region and the safety valve 9 is welded to the upper end of the upper case 3.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a prevent shell structure of battery weeping which characterized in that: the housing (1) comprises a shell (2);

the shell (2) surrounds the periphery of the battery;

a plurality of convex strips (5) which are uniformly arranged are arranged on the outer peripheral side of the shell (2), and the convex strips (5) are used for dispersing the stress of the shell (2) caused by impact;

a buffer structure (6) is arranged on the outer peripheral side of the shell (2);

wherein, buffer structure (6) set up on sand grip (5), buffer structure (6) include flexplate (601).

2. The battery leakage prevention case structure according to claim 1, wherein: the shaping has mounting groove (7) between sand grip (5), just buffer structure (6) are arranged in mounting groove (7).

3. The battery leakage prevention case structure according to claim 2, wherein: the outer side of the flexible plate (601) is convex outwards.

4. The battery leakage prevention case structure according to claim 2 or 3, wherein: the inner side of the flexible plate (601) is provided with a stress plate (602), and one end of the stress plate (602) is provided with a reset plate (603).

5. The battery leakage prevention case structure according to claim 3, wherein: the flexible plate (601) is made of spring steel.

6. The battery leakage prevention case structure according to claim 4, wherein: the flexible plate (601) and the reset plate (603) are made of spring steel.

7. The battery leakage prevention case structure according to claim 5, wherein: the shell (1) further comprises an upper shell (3) and a bottom shell (4) which are hermetically mounted with the shell (2).

8. The battery leakage prevention case structure according to claim 6, wherein: the shell (1) further comprises an upper shell (3) and a bottom shell (4) which are hermetically mounted with the shell (2).

9. The battery leakage prevention case structure according to claim 7, wherein: and an electrode (8) and a safety valve (9) are arranged at the upper end of the upper shell (3).

10. The battery leakage prevention case structure according to claim 8, wherein: and an electrode (8) and a safety valve (9) are arranged at the upper end of the upper shell (3).

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