JPH11288326A - Electronic device housing - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a highly reliable electronic device housing that prevents a shield layer formed on the surface of an engagement claw from peeling off. SOLUTION: A lower end of a side wall of a main body upper case 1 has a first
A first engaging claw 9 functioning as an engaging portion is provided to protrude. The first engaging claw 9 is provided with rib portions protruding from both ends. An inclined surface and a step surface for hooking are formed on the rib portion of the first engagement claw 9. A second engagement claw 11 and a second engagement claw 11
Are provided in a similar manner. When the main body upper case 1 and the main body lower case 2 are fitted to each other, a shield layer is formed on the first rib portion of the first engagement portion and the second rib portion 12 of the second engagement portion. However, since the surfaces without the shield layer rub against each other, a highly reliable housing without peeling of the shield layer can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing of an electronic device, particularly an electronic device having a shielding function, which is used as a housing of an information processing apparatus such as a personal computer.

[0002]

2. Description of the Related Art In recent years, electronic devices, particularly information processing devices, have a shield structure inside a housing made of synthetic resin or the like in order to block intrusion of electromagnetic noise into the inside and to prevent leakage of electromagnetic noise from the inside. It has.

As a shield structure, generally, a shield layer in which copper plating, nickel plating, or the like is laminated on the inner surface of a housing of an information processing apparatus is widely used.

Incidentally, the housing of the information processing apparatus is composed of a plurality of components such as an upper case and a lower case in order to store various electronic components therein. As a method of fastening these multiple components, there is generally a method of using engagement claws that can be screwed or elastically deformed, and in particular, in recent years, in order to improve production efficiency and recyclability,
The mainstream is a fastening method by fitting using engagement claws.

[0005]

When the casing of the information processing apparatus is fastened by using the above-mentioned engaging claws, one of the pair of engaging claws to be fitted with each other is placed on the other engaging claw. It is elastically deformed while sliding, and is fitted by getting over the other engaging claw.

[0006] However, when one of the engaging claws climbs over the other engaging claws while sliding on the other engaging claws, the shield layers formed on the surfaces of these engaging claws rub against each other, and the engaging claws of the engaging claws are rubbed against each other. The shield layer may peel off from the surface. In this case, the shield function at the part where the shield layer has peeled off is reduced, which causes intrusion or leakage of electromagnetic noise.

[0007] The shield layer peeled off from the engagement claws has conductivity, and electronic equipment such as a printed circuit board is usually arranged inside the housing of the information processing apparatus. Therefore, when the shield layer peeled off from the engagement claws falls on the electronic component, a short circuit may be caused.

[0008] From the above viewpoint, there may be a problem that the reliability of the entire information processing apparatus is reduced due to the peeling of the shield layer.

As a method for solving the above-mentioned problem, a method of applying a lubricant having high slidability to the sliding portion of the engaging claw which rubs each other at the time of engagement as described in Japanese Patent Application Laid-Open No. 9-246772 is superimposed on the shield layer. There is. However, the above method has a problem that the number of steps is increased because the lubricant is applied to the shield layer in an overlapping manner.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a highly reliable housing of an information processing apparatus by preventing the shield layer from peeling off.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, a first housing portion having a first engagement portion and a first housing portion having the first engagement portion are provided. And a second engaging portion engageable with the first housing portion. The second housing portion fits into the first housing portion. Has at least one set of a first rib portion and a second rib portion that rub against each other at the time of engagement, and the inner surfaces of the first housing portion and the second housing portion; An electronic device, comprising: a shield layer formed on a surface of the first engagement portion and the second engagement portion except for the first rib portion and the second rib portion. It is a housing.

According to the housing configured as described above, when the first housing and the second housing are fitted to each other, the first rib of the first engaging portion and the second rib are connected to each other. No shield layer is formed on the second rib portion of the second engaging portion, and the surfaces without the shield layer rub against each other and are fitted to each other, so that peeling of the shield layer does not occur. Further, when completely fitted, the first and second engaging portions on which the shield layer is formed are engaged, so that the first casing portion and the second casing portion are engaged. The shielding effect of the part satisfies its function.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings.

1 and 2 show an information processing apparatus according to the present invention applied to, for example, a main body of a portable personal computer. The portable personal computer has a display unit 3 equipped with a liquid crystal display panel 4 as a display.
And a main body case 1 having a keyboard 6 as information input means and a touch pad 7 having a function equivalent to a mouse, and a main body lower case 2 having a hard disk 8 and a CD-ROM 5 as external storage media. It is composed of

As shown in FIG. 3, the main body upper case 1 and the main body lower case 2 have engaging claws 9 and 11 for fitting and fixing these cases to each other. Specifically, a plurality of first engagement claws 9 functioning as first engagement portions are provided at the lower end of the side wall of the upper case 1 of the main body in a protruding manner. The first engaging claw 9 is provided at both ends with rib portions 10 protruding from the first engaging claw 9. First engaging claw 9
The rib portion 10 has a slope 10a and a step surface 10 for hooking.
b is formed.

A second engaging claw 11 functioning as a second engaging portion is provided at a predetermined position on the inner surface of the side wall of the main body lower case 2.
Are provided to protrude. The second engaging claw 11 is provided at both ends with rib portions 12 protruding from the second engaging claw 11. As shown in FIGS. 3, 4, 5, and 6, the rib portion 12 of the second engagement claw 11 has a slope facing the slope 10 a of the rib portion 10 of the first engagement claw 9 when assembled. 12a
And a hook step surface 12b that can be hooked on the hook step surface 10b of the first engagement claw 9 at the time of fitting.
Are formed so as to be able to engage with the engaging claws 9.

When assembling the main body upper and lower cases, when the main body upper case 1 and the main body lower case 2 are connected to each other, as shown in FIG. The main body upper case 1 is positioned with respect to the main body lower case 2 so that the upper main body case 1 is pressed against the main body lower case 2.

Then, as shown in FIG. 5 and FIG.
Of the rib 12 of the second engaging claw 11
2a, the second engaging claw 11 descends while sliding on the surface of the rib 12 of the second engaging claw 11 in accordance with the slope 10a of the rib 10 of the first engaging claw 9, and elastically deforms the second engaging claw. Get over 11 As a result, the step surface 10 b of the rib portion 10 of the first engagement claw 9 is changed to the step surface 12 of the rib portion 12 of the second engagement claw 11.
b, the first engagement claw 9 and the second engagement claw 11 are fitted. Thereby, the main body upper case 1 and the main body lower case 2 are combined and integrated.

The upper case 1 and the lower case 2
Are fitted by the first engagement claw 9 and the second engagement claw 11, and then fastened by a plurality of screws (not shown).

The first engaging claws 9 excluding the inner surfaces of the main body upper case 1 and the main body lower case 2 and the first rib portion 10 are provided.
By forming a shield layer on the surface of the second engaging claw 11 excluding the second rib portion 12 (the grid portion in FIGS. 3 and 4 is a surface from which the shield layer is removed). It is possible to prevent the separation of the shield layer due to the sliding of the claws, and the stepped surface 10b of the rib portion 10 of the first engagement claw 9 and the rib of the second engagement claw 11 on which the shield layer is formed. The step surface 12b of the portion 12 is in contact, and it is possible to provide a highly reliable housing with a high shielding effect.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the ribs are provided at both ends of the engaging claw. However, the ribs may be located at the center, and the number of the ribs may be one or more.

Further, in the above embodiment, the shield layers are formed on the inner surfaces of the upper case and the lower case, but may be formed on both surfaces. Further, in the above-described embodiment, the description has been made with the engagement claws of the main body upper and lower cases, but the invention may be applied to the housing of the display unit.

[0023]

As described above, in the present invention,
A part of the engaging claws that engage with each other is projected in a rib shape, and the shield layer is eliminated in the rib portion, so that when the rib portions of the engaging claws slide during assembly, peeling of the shield layer is prevented. This does not occur, and the engagement claws formed with the shield layer are brought into contact with each other, so that it is possible to provide a housing of an electronic device such as an information processing device with high reliability of the shield effect.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a computer to which an information processing apparatus according to an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the computer shown in FIG.

FIG. 3 is an enlarged exploded perspective view of an engaging claw portion of the housing of the computer shown in FIG. 1;

FIG. 4 is a perspective view showing a first engagement claw of the housing shown in FIG. 1;

FIG. 5 is a cross-sectional view showing a state before the first engagement claw and the second engagement claw are engaged when the housing shown in FIG. 1 is assembled.

FIG. 6 is a cross-sectional view showing a state after engagement of a first engagement claw and a second engagement claw when the housing shown in FIG. 1 is assembled.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body upper case 2 Main body lower case 3 Display part 4 Liquid crystal display panel 5 CD-ROM 6 Keyboard 7 Touch pad 8 Hard disk 9 First engaging claw 10 Rib part projecting from the first engaging claw 10a First engagement Slope of rib part protruding from dovetail 10b Hook step surface of rib part protruding from first engagement claw 11 Second engagement claw 12 Rib part protruding from second engagement claw 12a Second engagement Slope of rib portion protruding from dovetail 12b Hook step surface of rib protruding from second engagement claw

Claims (1)

[Claims] A first housing having a first engagement portion;
A second housing portion fitted to the first housing portion by having the first engagement portion and a second engagement portion engageable with the first housing portion; The engagement portion and the second engagement portion have at least one set of a first rib portion and a second rib portion that rub against each other when engaged, and the first housing portion and the second housing portion. An inner surface of a body portion, and a shield layer formed on a surface of the first engagement portion and the second engagement portion excluding the first rib portion and the second rib portion. A housing for an electronic device characterized by the above-mentioned.