KR940001638Y1 - Conclusion structure for cover case - Google Patents

Abstract

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Description

Fastening structure of upper and lower cases of electric and electronic products

1 is a main cross-sectional view of a conventional omission of a part showing the relationship between the upper and lower cases.

Figure 2 is an operating state showing the fastening relationship of the upper and lower cases according to the present invention.

Figure 3 (a), (b) is a plan view of the upper and lower cases separated state according to this invention.

(A) and (b) of FIG. 4 are enlarged views of portions A and B of FIG. 3 according to the present invention.

* Explanation of symbols for main parts of the drawings

1: upper case 2,2 ': coupling hole

3,3 ': protrusion 4: lower case

C11 to C16, C11 'to C16': Elastic fixing piece

The present invention relates to a fastening structure of upper and lower cases of electrical and electronic products, and more particularly, when fastening upper and lower cases in which electrical and electronic components are embedded, there is no need for a separate fastening screw. The present invention relates to a fastening structure of upper and lower cases of electrical and electronic products, which can shorten the assembly time of a product to improve productivity and save material costs.

In general, the upper and lower cases of the conventional electrical and electronic products, as shown in Figure 1, the components of the electrical and electronic products are mounted, the end 10 'is formed on the upper end of the inner periphery and the screw hole 12 at the bottom ) Is formed in the upper case 10 is arranged with a plurality of ribs 11, the end 20 'is formed on the upper end of the outer periphery and the position corresponding to the ribs 11 of the upper case 10 on the bottom surface The lower case 20 in which the through-holes 21 are formed is coupled to form a pair.

Then, the screw 22 is zigzag by fitting the respective through holes 21 of the lower case 20 corresponding to the screw holes 12 of the ribs 11 formed in the upper case 10 to be coupled as described above. The fastening of the upper and lower cases 10 and 20 is completed by being fastened in the order of.

In this case, when the upper and lower cases are fastened, the upper and lower cases must be combined and the small screws must be used to screw the parts of the case together, thus increasing the assembly time and material costs. There is a problem that all the screws must be loosened one by one, and the thread of the ribs is often broken by loosening and tightening the screw, thereby lowering the reliability of the product.

This invention has been devised in view of the above-mentioned conventional problems, and an object of this invention is to make it easy to fasten without using screws when fastening the upper and lower cases, thereby shortening the assembly time of the product and improving productivity. It is to improve the reliability of the product by improving the quality and reducing the defective assembly.

A feature of this invention for achieving the above object is, in fastening the lower case and the upper case in which the parts of the electrical and electronic products are embedded, the upper case formed a plurality of coupling holes on one side wall, and the coupling hole The upper and lower fastening structures of the electrical and electronic products, which are inserted into the lower case to form a plurality of protrusions for hinge coupling are fastened by the coupling means.

Hereinafter, embodiments according to the present invention will be described in detail according to the accompanying drawings.

(A), (b) of FIG. 3 is a view for explaining the coupling of the upper and lower cases according to the present invention, a plurality of coupling holes (2), (2 ') on one side wall of the upper case (1) A plurality of elastic fixing pieces (C11 'to C16) formed at the same angle to be elastically coupled in correspondence with the plurality of elastic fixing pieces (C11 to C16) formed to be inclined at a predetermined angle and rounded at the other inner surface except for this. ') Is arranged in the lower case (4).

Referring to the operation, the effect of this invention configured as described above are as follows.

As shown in Figs. 2 and 3 (a) and (b), a plurality of protrusions 3 and 3 'are formed on one side of the lower case 4 in which parts of electrical and electronic products are mounted on the bottom. By inserting)), the ends of the elastic fixing pieces C11 and C16 of the upper case 1 come into contact with the ends of the elastic fixing pieces C11 'and C16' of the lower case 4 corresponding thereto.

On the other hand, when lowering the upper case 1 slightly in the above state, the elastic fixing piece C11 and C16 of the upper case 1 is elastically coupled with the elastic fixing piece C11 'and C16' of the lower case 4 At the same time, the end portions of the elastic fixing pieces C12 and C15 of the upper case 1 are in contact with the ends of the elastic fixing pieces C12 'and C15' of the lower case 4.

In addition, when lowering the upper case 1 a little further, the elastic fixing piece C12 and C15 of the upper case 1 is elastically coupled with the elastic fixing piece C12 'and C15' of the lower case 4 and the upper case (1) The end portions of the elastic fixing pieces C13 and C14 are in contact with the end portions of the elastic fixing pieces C13 'and C14' of the lower case 4.

Finally, when the upper case 1 is pressed, the elastic fixing pieces C13 and C14 are elastically coupled to the corresponding C13 'and C14', respectively, so that the upper case 1 and the lower case 4 are completely elastically bonded. Will be made.

In addition, it is known that the end 1a formed at the upper end of the outer circumference of the upper case 1 and the end 1b formed at the upper end of the inner circumference of the lower case 4 are not moved in one direction.

On the contrary, when the electrical and electronic products are abnormal or after A / S disassembly in the reverse order, the upper case and the lower case are simply separated.

As described above, this design can be easily fastened without using a separate fastening screw when fastening the lower case and the upper case to which components of electric and electronic products are mounted, thereby reducing labor costs by reducing the assembly time of the product. By reducing the price of the product and reducing the assembly defects, the reliability of the product is improved.

Claims (2)

The upper case (1) formed with a plurality of coupling holes (2), (2 ') in one side wall in fastening the upper case, the lower case is built, the components of electrical and electronic products, and the coupling hole (2 ), The upper and lower cases of the electrical and electronic products are inserted into the (2 '), the lower case (4) formed of a plurality of projections (3), (3') that is hinged coupling is fastened by the coupling means rescue. The method of claim 1, wherein the coupling means has a plurality of elastic fixing pieces (C11 ~ C16) is formed on the inner periphery of the upper case (1), the end is rounded and inclined at a predetermined angle, the elastic fixing pieces (C11 ~) C16) is a fastening structure of the upper and lower cases of the electrical and electronic products, characterized in that the elastic fixing piece (C11 '~ C16') is formed on the inner periphery of the lower case (4).