CN202134582U

CN202134582U - Casing structure and battery made by same

Info

Publication number: CN202134582U
Application number: CN201120240717U
Authority: CN
Inventors: 张振; 卢舜毅
Original assignee: SHENZHEN TECH-POWER TOP INDUSTRY Co Ltd
Current assignee: SHENZHEN TECH-POWER TOP INDUSTRY Co Ltd
Priority date: 2011-07-09
Filing date: 2011-07-09
Publication date: 2012-02-01
Anticipated expiration: 2021-07-09

Abstract

The utility model relates to a casing structure, which comprises a plastic casing and a metal sheet. At least one inversely-clamped protrusion is arranged on the metal sheet, and the plastic casing is provided with a groove tightly clamped with the protrusion on the metal sheet. Or the plastic casing is provided with at least one reversely-clamped protrusion, and the metal sheet is provided with a groove tightly clamped with the protrusion on the plastic casing. The utility model further relates to a battery made by the casing structure. Due to the fact that the metal sheet is injected into the plastic casing, a reversely clamping method is formed by the groove and the protrusion, and the metal sheet is hard to fall off from the plastic casing, thereby enabling the structure between the plastic casing and the metal sheet to be combined more firmly. Furthermore, safety of the casing structure is guaranteed and quality of the casing structure is improved.

Description

A kind of shell structure and the battery of processing by shell structure

Technical field

The utility model relates to a kind of shell structure, relates in particular to a kind of shell structure of plastic cement shell and sheet metal and battery of being processed by this housing of containing.

Background technology

Along with improvement of Manufacturing Technology, portable type electronic product (like accessories such as mobile phone, DVD player, notebook computer and batteries etc.) when satisfy easy to use and outward appearance etc. requires, also must satisfy the requirement of qualities such as intensity.Portable type electronic product is falling back phenomenons such as appearance cracking or fracture easily because of carelessness owing to their in light weight and thin thickness influences its intensity.The researcher generally can select the material that intensity is higher and pliability is moderate for use in order to solve strength problem.If the structural strength of material own is not enough, or then generally can add sheet metal adopts mode such as in-mould injection assembling metal to guarantee the intensity of electronic product.

For the embedding of large-area metal, or often need on sheet metal, punch processing such as increasing button bit, processed complex, yield are not high, thereby cause cost higher.Because the bond strength of plastic cement and metal is not high, the metal processed complex often causes the researcher on design and material chosen, to limit to some extent simultaneously.

It is bonding injection molding technology in the metal pattern that a kind of forming method is arranged at present; Directly that metal and plastic cement is one-body molded in mould; This technology is lower for the requirement of sheet metal, seldom wants design such as button bit to reach and is plastic cement and the full high strength bond that belongs to, has simplified metal working process; Improve yields, reduce cost.But do not have at metal product under the situation of button bit, the adhesion between plastic rubber surface and the metal covering is poor, though the time metal line face handle, fall with the examination of pulling force side in, still not ideal enough in conjunction with effect.If be placed on in-mould injection to sheet metal; Let some positions of sheet metal be mounted to the plastic parts the inside; So also can increase the bond strength of sheet metal and plastic parts, but the structure of sheet metal tends to very complicacy like this, has increased the difficulty of product on structural design; Be unfavorable for large-scale production, also be unfavorable for practicing thrift cost.

Like Fig. 1 and Fig. 3, and shown in Figure 2, be that steel disc 100 rectangular (being 90 degree) injects in plastic cement shell 300 in the prior art among Fig. 1 and Fig. 3, be steel disc 200 is in wedge angle (being 95 degree) the injection plastic cement shell in the prior art among Fig. 2.The structure of these two kinds of housings is insecure, and steel disc is easy to pull out from the plastic cement shell.Because the part that steel disc injects in the plastic cement shell does not form a button bit, therefore, this shell structure is easy to cause steel disc and plastic cement shell to separate when doing drop test or pull experiment, has guaranteed not the quality of security of products and product.

Therefore, be necessary to design a kind of sheet metal and the high shell structure of plastic cement bond strength.

Summary of the invention

The technical problem that the utility model will solve is to provide the high and shell structure that be made up of sheet metal and plastic cement shell of a kind of bond strength to solve problems such as bond strength is not high in the existing shell structure.

The technical scheme that technical problem adopted that solves the utility model is: a kind of shell structure is provided; It comprises plastic cement shell and sheet metal; Said sheet metal is provided with the convexity of at least one back-off, said plastic cement shell be provided with said sheet metal on the protruding groove that closely fastens each other; Perhaps

Said plastic cement shell is provided with the convexity of at least one back-off, said sheet metal be provided with said plastic cement shell on the protruding groove that closely fastens each other.

As the further improvement of the utility model, the protruding or groove on the said sheet metal is formed by the sheet metal bending.

As the further improvement of the utility model, the protruding or groove on the said sheet metal is trapezoidal, and one side of said convexity or groove is more than or equal to 15 degree extremely smaller or equal to miter angle with the horizontal plane of said sheet metal.

As the further improvement of the utility model, the material of said sheet metal is steel, aluminium, magnesium, copper or their alloy.

Another technical problem that the utility model will solve is to provide a kind of battery of being processed by above shell structure.

Intersect at prior art; The shell structure of the utility model has following advantage: (1) is because in the sheet metal injection plastic cement shell; Groove and the mode that has convexed to form a kind of back-off, sheet metal are difficult to come off out from the plastic cement shell, thereby make the structure between them combine firmly.(2) security performance of shell structure and the quality of raising shell structure have been guaranteed.

Description of drawings

To combine accompanying drawing and execution mode that the utility model is described further below, in the accompanying drawing:

Fig. 1 is the sketch map of first embodiment of the sheet metal of prior art;

Fig. 2 is the sketch map of second embodiment of the sheet metal of prior art;

Fig. 3 is the sketch map that the sheet metal among Fig. 1 combines with sheet;

Fig. 4 is the sketch map of first embodiment of sheet metal in the utility model shell structure;

Fig. 5 is the sketch map of second embodiment of sheet metal in the utility model shell structure;

Fig. 6 is the sketch map that sheet metal and the plastic cement shell facies in the utility model shell structure combines mutually.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and execution mode.Should be appreciated that embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

This shell structure such as Fig. 4 are to shown in Figure 6, and this shell structure comprises the

sheet metal

10,20 that is arranged on the outside and is arranged on inboard plastic cement shell 30.This

sheet metal

10,20 is bent to form at least one and is trapezoidal convexity 12,22.One side of convexity 12 on this sheet metal 10 is 15 degree angles with the horizontal plane of sheet metal.One side of convexity 22 on this sheet metal 20 is miter angle with the horizontal plane of sheet metal.Certainly, the horizontal plane of one side of this convexity 22 and sheet metal be 15 spend to an angle between the miter angle also be feasible.

During moulding; This sheet metal 20 or sheet metal 10 are put in the plastic mould; Locate through the anchor point of plastic mould and the anchor point of sheet metal, inject plastic rubber material through injection molding machine then and get into in-mold molding, make the plastic cement shell 30 and the sheet metal that form combine.

Be appreciated that in the utility model the shape of the convexity of

sheet metal

10,20 can have multiple, regular shape, also have erose, so long as form the convexity of other shapes of the difficult back-off that separates with this plastic cement shell 30.

Be appreciated that on the said

sheet metal

10,20 and also can be bent to form at least one groove.

Said plastic cement shell can be used for making the shell of electronic product or battery, for example, can for molecular weight be 20000-60000 gather carbonic acid vinegar (PC) and/or molecular weight is the polymethyl methacrylate (PMMA) of 20000-200000, ABS etc.

The not special restriction of the material of said sheet metal.Be preferably the light higher metal of intensity of material.For example steel and alloy thereof, aluminium and alloy thereof, copper and alloy thereof, magnesium and alloy thereof etc.The structure of said sheet metal is by the structural design of designer according to plastic cement products.

The utility model shell structure has following advantage: (1) since sheet metal inject in the plastic cement shell, groove and the mode that has convexed to form a kind of back-off, sheet metal is difficult to come off out from the plastic cement shell, thereby makes the structure between them combine firmly.(2) security performance of shell structure and the quality of raising shell structure have been guaranteed.

The above is merely the preferred embodiments of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims

1. shell structure, said shell structure comprises plastic cement shell and sheet metal, it is characterized in that, said sheet metal is provided with the convexity of at least one back-off, said plastic cement shell be provided with said sheet metal on the protruding groove that closely fastens each other; Perhaps

2. shell structure as claimed in claim 1 is characterized in that: the protruding or groove on the said sheet metal is formed by the sheet metal bending.

3. shell structure as claimed in claim 1 is characterized in that: the protruding or groove on the said sheet metal is trapezoidal, and one side of said convexity or groove is more than or equal to 15 degree extremely smaller or equal to miter angle with the horizontal plane of said sheet metal.

4. shell structure as claimed in claim 1 is characterized in that: the material of said sheet metal is steel, aluminium, magnesium or copper.

5. one kind according to any battery that described shell structure is processed of claim 1-4.