JPH0427189Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to the structure of a casing in an electronic device, which is formed by integrating a lower case and an upper case while accommodating a printed wiring board.

[Conventional technology]

Conventionally, various types of casing structures have been implemented, including one shown in FIG. 2, for example.

FIG. 2 is a sectional view showing a conventional housing structure.

In the figure, reference numeral 1 denotes a lower case of a communication device, and a seat 2 is formed protruding from both sides of the lower case 1. Furthermore, a fixing part 5 for fixing a printed wiring board 3 via a mounting screw 4 is provided on the outside of the seat 2. It is formed.

Further, 6 is an upper case, and this upper case 6 has a support 7 that faces the seat 2 of the lower case 1, and a mounting screw 8 is screwed into the support 7 through a stepped hole 2a formed in the seat 2. It is designed so that it can be fixed to the lower case 1.

Next, a method for assembling the casing having the above configuration will be described. When assembling the casing, first, the printed wiring board 3 is fixed to the fixing portion 5 of the lower case 1 via the mounting screws 4.

Next, the upper case 6 is fixed to the lower case 1 by screwing the mounting screw 8 into the column 7 through the stepped hole 2a of the seat 2.

In addition, when disassembling the casing, the casing is disassembled by the reverse process of the above-mentioned assembly.

[Problem that the invention attempts to solve]

However, the above-mentioned case structure requires a large number of screws to fix the printed wiring board, lower case, and upper case, so it takes a lot of time to assemble and has the problem of poor assembly performance. It was hot.

This invention was made with attention to the above-mentioned problems, and its purpose is to provide a casing structure for electronic devices that reduces the number of steps needed to assemble the casing and improves ease of assembly. .

[Means for solving problems]

The structure of this invention according to the above purpose is that, in the case structure of an electronic device, there is a seat provided in the lower case to position the printed wiring board, and a seat provided in the upper case to sandwich the printed wiring board between the seats. The pillar and
A hook hole provided in one of the lower case and the upper case and a hook claw provided in the other that engages with the hook hole, and a hook hole and a hook claw provided by elastically deforming one of the lower case and the upper case. and a release means for releasing the hook engagement.

[Effect]

When assembling the casing in the casing structure configured as described above, first, the printed wiring board is positioned and set in the lower case by the seat.

Next, when the upper case of the lower case is pushed in from above, the hook hole and the hook claw engage with each other, and the upper case is temporarily fixed to the lower case.

Furthermore, by tightening the seat and support with the mounting screws, the printed wiring board, lower case, and upper case are fixed in a centered state at the same time.

Also, when dismantling the case, first remove the mounting screws that tighten the seat and support.

Next, both sides of the lower case are pressed to release the hook engagement between the hook claw and the hook hole.

Therefore, the above problem can be eliminated.

〔Example〕

Hereinafter, embodiments of this invention will be described in detail based on the drawings.

Fig. 1A is a plan view showing an embodiment of this invention applied to the housing structure of a communication device, and Fig. 1B is a plan view of Fig. 1A.
FIG.

In FIGS. 1A and 1B, 11 is a lower case, and a stepped seat 12 is provided protruding from the center of the rear part of the lower case 11.

13 is a printed wiring board housed in the housing, and this printed wiring board 13 has a positioning hole 14 and a seat 1.
The seat 12 is positioned by fitting with the seat 12 and the corresponding support 16 on the upper case 15 side.

Also, only one mounting screw 17 is used, and the seat 1
The lower case 11, upper case 15, and printed wiring board 13 are simultaneously fixed in a centered state by screwing into the support column 16 through a stepped hole 12a formed at the center of the case 2.

Further, tapered hook claws 18 are formed on both sides of the front portion of the lower case 11, respectively.

Upper case 1 compatible with this hook claw 18
A hook hole 20 is formed in the rib 19 of 5, and the hook pawl 18 is locked into the hook hole 20 at the same time as the mounting screw 17 is tightened.

Further, a rectangular notch 21 is formed at the front end of the upper case 15, and the hook can be released by elastically deforming the front both sides of the upper case 15 in the direction C when pressed. .

Next, a method of assembling the casing structure having the above configuration will be explained.

When assembling the casing, first, the printed wiring board 13 is positioned and set on the lower case 11 using the seat 12.

Next, attach the upper case 15 to the lower case 11.
When pushed in from above, the rib 19 engages the hook claw 18.
The lower case 11 is bent along the tapered shape of the lower case 11 due to the hook engagement between the hook hole 20 and the hook pawl 18.
The upper case 15 is temporarily fixed.

Furthermore, the seat 12 and the support column 16 are attached with mounting screws 17.
When tightened, printed wiring board 13 and lower case 11
At the same time, the upper case 15 is fixed in the centered state.

Furthermore, when dismantling the housing, first remove the mounting screws 17 that fasten the seat 12 and the support column 16.

Next, when both front sides of the upper case 15 are pressed inward, the ribs 19 are elastically deformed in the C direction together with the front side sides of the upper case 15, and the hook engagement between the hook claws 18 and the hook holes 20 is completed. It will be canceled.

It should be noted that this invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made.

For example, in the embodiment, the case of a communication device has been described, but the present invention is not limited to this and can be applied to the case of other electronic devices.

[Effect of idea]

As is clear from the above explanation, according to this invention, there is a seat provided in the lower case, a support provided in the upper case, a hook hole provided in one of the lower case and the upper case, and a hook hole provided in the other. The structure includes a hook claw and a release means that elastically deforms one of the lower case and upper case to release the hook engagement, so it is possible to attach the upper case to the lower case without using mounting screws. Not only can it be temporarily fixed, but the casing can be easily assembled using just a few mounting screws.

Therefore, the number of assembly steps is reduced, and the ease of assembly is improved.

Further, when disassembling the housing, there is an effect that the hook engagement can be easily released by simply pressing both sides of one of the lower case and the upper case without using any tools.

[Brief explanation of the drawing]

FIGS. 1A and 1B are a plan view and a sectional view showing the housing structure of an electronic device according to an embodiment of this invention, and FIG. 2 is a configuration diagram showing a conventional example. 11... Lower case, 12... Seat, 13... Printed wiring board, 14... Positioning hole, 15... Upper case, 16... Support, 17... Mounting screw, 18... Hook claw, 19... ...Rib, 20...
Hook hole, 21...notch.

Claims (1)

[Scope of Claim for Utility Model Registration] A housing structure for an electronic device that is formed by integrating a lower case and an upper case with a printed wiring board housed therein, comprising: a seat provided on the lower case for positioning the printed wiring board; A post provided on the upper case and sandwiching the printed wiring board between it and the seat, a hook hole provided on one of the lower case and the upper case, and a hook engaged with the hook hole provided on the other. A housing structure for an electronic device, comprising: a hook claw; and a release means for elastically deforming one of the lower case and the upper case to release the hook engagement between the hook hole and the hook claw.