JP2000114734A - Enclosure structure for electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an enclosure for electric apparatus which can make the molds used for molding its upper and lower covers simpler by forming the upper and lower covers in the same shape, can be reduced in cost by making its structure simpler and using an inexpensive material, can be assembled easily, has a good external appearance without allowing a substrate, etc., arranged in the enclosure to be exposed, and can also be used in a vertical state. SOLUTION: The enclosure structure for electric apparatus is constituted by attaching covers 2 and 3 to the main chassis 1 of the apparatus. The chassis 1 has side wall sections 4, 5, 6, and 7 on the left, right, front, and rear sides and the upper cover 2 is put on the chassis 1 from the top side and fixed to the chassis 1 with screws. In addition, the lower cover 3 is put on the chassis 1 from the bottom side and fixed to the chassis 1 with screws.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure of an electric device in which a cover is attached to a main chassis of the electric device to form a housing.

[0002]

2. Description of the Related Art As a conventional electric device housing structure, for example, an upper portion of a main chassis on which a substrate and the like are arranged is covered with a single cover, and a side wall portion of the cover is screwed to a side wall portion of the main chassis. And fixed the cover to the main chassis. In this conventional electric device housing structure, since only the upper portion of the main chassis is covered with the cover, the back side of the main chassis is in a state in which the board and the like are exposed, and the electric device is turned vertically or turned over. In this case, there is a problem that the substrate and the like exposed on the back side can be seen and the appearance is poor, and this conventional electric device has a problem that it can be used in a horizontal type but cannot be used in a vertical type.

[0003] As another example of the housing structure of a conventional electric device, there is a cover structure in which a cover is formed in a cylindrical shape and a main chassis is inserted and fixed therein. Has a problem that it is difficult to insert and arrange the main chassis in the cover. In addition, in order to produce a cylindrical cover with a single plate, the size of the single plate must be increased, which increases the material cost and increases the cost. Since the size of the mold for producing the mold cover becomes large, there is a problem that the cost is further increased.

[0004] Further, as a conventional plate-like object storage case,
There is one described in Japanese Unexamined Patent Publication No. 3-67. This conventional
(A), (b) and (c) of FIG.
As described above, the bottom plate portion 110 and the two side plate portions 111, 111
Comprising a cover 101, a side plate portion 111, and a bottom plate.
The height from the part 110 is h₁The first part 101a
And the height from the bottom plate 110 is h_Two(> H₁)Met
The object is the height h from the bottom plate 110 _Three(H_Two> H_Three>
h₁The bent portion 101 further bent inward in
The second portions 101b having the letter c are alternately formed.
First cover 101, bottom plate 120 and two side plates 1
21 and 121, the first cover 101 and the width and depth
A cover 102 having the same row and thickness,
The height of the side plate portion 121 from the bottom plate portion 121 is h._FourIs
The height from the first portion 102a and the bottom plate 120 is h_Five
(> H_Four) Is the height h from the bottom plate 120.₆
(H_Five> H₆> H _FourIs bent further inward at
The second portions 102b having the bent portions 102c are alternately formed.
And a second cover 102 formed,
2 of the second part 101b, 10 of the cover 101, 102
The bent portions 101c and 102c of 2b are the second and
The first portions 102a, 10a of the first covers 102, 101
1a, the first cover 101 and the second cover
First, so that a square cylindrical body is formed by the bar 102,
First and second portions 102 of the second covers 101 and 102
a, 101a, 101b, and 102b are formed,
And a first cover 10 formed when the tubular body is formed.
The first bent portion 101c and the bent portion 10 of the second cover 102
2c is larger than the thickness of a plate-like object such as the substrate 103.
The first and second parts 102a, 102a, 1
01a, 101b, 102b
Each height h₁~ H₆Is stipulated.

[0005] However, this conventional plate-like object storage case is required to have high accuracy of the height dimension of each part of the first and second covers 101 and 102, and it is difficult to assemble the work. There was a problem.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and allows the upper cover and the lower cover to have the same shape, thereby simplifying a mold for producing each cover. The structure is simple, the material cost can be reduced, the cost can be reduced, and the assembly can be performed easily. It is an object of the present invention to provide a housing structure of an electric device that can also be used.

[0007]

Means for Solving the Problems To achieve the above object, an invention according to claim 1 is a housing structure of an electric device in which a cover is attached to a main chassis of the electric device to form a housing. In the above, the main chassis has left, right, front and rear walls, and an upper cover is screwed on the main chassis from above, and a lower cover is screwed from below the main chassis. It is characterized by doing. The invention according to claim 2 is characterized in that the upper cover and the lower cover have the same shape.

According to a third aspect of the present invention, the main chassis includes a front wall, a rear wall, and left and right walls each having an opening for inserting a cassette. The main chassis is characterized in that ribs for screwing to a front wall and a rear wall of the main chassis are formed so as to face each other.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a housing structure of an electric device according to an embodiment of the present invention. FIG. 1 is an exploded perspective view showing a housing structure of an electric device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state when assembly is completed.

As shown in FIG. 1, the housing structure of an electric device according to this embodiment is composed of a main chassis 1 and upper and lower covers 2 and 3 which cover the main chassis 1 above and below. The main chassis 1 includes front and rear left and right walls 4, 5, 6, and 7, and an opening 4b for inserting a cassette (not shown) is formed in the front wall 4. Further, screw holes 4a, 4a, 5a, 5a into which screws 8 for fixing the upper and lower covers 2, 3 are screwed are respectively formed at two positions on the upper and lower sides of the front and rear walls 4, 5 of the main chassis 1. I have. The left and right walls 6, 7 are formed lower than the front and rear walls 4, 5.

The front and rear left and right walls 4, 5, 6, 7
A substrate (not shown) and the like are arranged in an internal space surrounded by. The upper and lower covers 2, 3 are formed in the same shape, and the bottom plates 2a, 3a and the left and right walls 2b, 2c, 3b,
3c and ribs 2d, 3d are protrudingly provided at positions corresponding to the screw holes 4a, 4a, 5a, 5a of the main chassis 1 before and after the bottom plates 2a, 3a. Are formed with screw insertion holes 2e, 3e for inserting screws 8. Furthermore, upper and lower covers 2, 3
Opposing edges 2f of left and right walls 2b, 2c, 3b, 3c of
2g, 3f, and 3g are smoothly bent inward.

As shown in FIG. 2, the housing structure of the electric apparatus of the present embodiment configured as described above covers the upper cover 2 and the lower cover 3 on the upper and lower sides of the main chassis 1 so as to face each other. The screw insertion holes 2e, 3d of each rib 2d, 3d
e, screws 8 are screwed into the screw holes 4a, 4a, 5a, 5a of the main chassis 1 to fix the upper cover 2 and the lower cover 3 to the main chassis 1. I do.

As described above, the upper cover 2 and the lower cover 3
Can have the same shape, the mold for producing the covers 2 and 3 can be simplified, the structure is simple, the material cost can be reduced, and the cost can be reduced. In addition, the assembly can be easily performed, and furthermore, the internal substrate and the like are not exposed and the appearance is good, and the device can be used as a vertical type.

[0014]

As described above, according to the first aspect of the present invention, since the upper cover and the lower cover are put on the main chassis and screwed, the board and the like disposed inside are exposed. It has no good appearance and can be used as a vertical type. In addition, since the main chassis is simply covered with the upper cover and the lower cover and fixed with screws, assembly is easy. Further, since the upper cover and the lower cover are divided, the material cost can be reduced without requiring a large plate material, and the dies for producing these covers can be reduced in size and cost can be reduced. be able to.

According to the second aspect of the present invention, since the upper cover and the lower cover have the same shape, only one mold is required for manufacturing the upper and lower covers, so that the lower cover can be manufactured inexpensively. it can. In addition, when the cover is replaced, the cover having the same shape can be used on both the upper and lower sides, so that the replacement is easy.

According to the third aspect of the invention, the ribs for screwing the front and rear walls of the main chassis are formed so as to face each other before and after the upper cover and the lower cover. The ribs can be formed at the same time when the upper cover and the lower cover are formed, and the production is easy. In addition, since the upper cover and the lower cover can be attached and fixed to the main chassis by screws with the ribs, the assembling work can be easily performed. In addition, the structure is simple and can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state before assembling a housing structure of an electric device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a completed state of assembly of the housing structure of the electric device of the embodiment.

3A and 3B show a conventional plate-like object storage case, wherein FIG. 3A is an exploded perspective view, FIG. 3B is a partial perspective view showing the assembled state, and FIG. 3C is an enlarged perspective view showing the state after the assembly. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main chassis 2 Upper cover 2a Bottom plate 2b Left wall 2c Right wall 2d Rib 3 Lower cover 3b Left wall 3c Right wall 3d Rib 4 Front wall 4a Screw hole 4b Opening 5 Rear wall 5a Screw hole 6 Left wall 7 Right wall 8 Screw

Claims (3)

[Claims] In a housing structure of an electric device in which a cover is attached to a main chassis of the electric device to form a housing, the main chassis has left, right, front and rear walls, and the upper cover is provided with the upper cover. A housing structure for an electric device, wherein the main chassis is covered with screws from above and the lower cover is covered with screws from below the main chassis to fix the screws. 2. The housing structure according to claim 1, wherein the upper cover and the lower cover have the same shape. 3. The main chassis comprises a front wall having an opening for inserting a cassette, a rear wall, and right and left walls, and a front wall and a rear wall of the main chassis are provided before and after the upper cover and the lower cover. The housing structure for an electric device according to claim 1, wherein a rib for screwing to a rear wall is formed so as to face and protrude.