JP2000244169A - Housing for electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a housing for electronic apparatus, capable of improving grounding effect between a housing sidewall and a cover covering an opening in the sidewall. SOLUTION: A housing for an electronic apparatus comprises a housing sidewall within which a printed wiring board 15 is contained, and a cover 2 which covers an opening in the housing sidewall 1, which has a tongue piece 22 coming into contact with the housing sidewall 1 or a division plate 11 provided within the housing sidewall 1. In addition, the tongue piece 22 in the cover 2 is adapted to comprise two contact portions 22a and 22c, capable of coming into contact with the housing sidewall 1 or the division plate 11 provided within the housing sidewall 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing for electronic equipment suitable for a high-frequency circuit device such as a television receiver, a video tape recorder, and a personal computer.

[0002]

2. Description of the Related Art FIGS. 15 and 1 are schematic perspective views showing a specific example of a housing for electronic equipment according to the prior art.
6 will be described.

The housing for electronic equipment is mainly composed of a housing side wall 1.
And a cover 2. Then, the casing side wall 1
Is formed by bending a sheet metal, and is composed of an even number of pairs of opposed side walls 10 and a partition plate 11 arranged to partition the inside. Further, input / output terminals 13 (F-type plug, DIN terminal, R
A CA jack or the like) or a power supply terminal 14 (a through-type capacitor or the like) is attached. Further, a circuit board (finished board) 15 to which chip components, insertion components, and sometimes power supply terminals are attached is housed in the housing.

On the other hand, the cover 2 is formed by bending a sheet metal in the same manner as the casing side wall 1 and covers the opening of the upper or lower surface of the casing side wall 1 which is open. And a claw portion 21 provided in a vertical direction along an outer peripheral portion thereof. The top surface 20 is provided with a tongue piece 22 for contacting the partition plate 11 inside the housing side wall portion 1.

[0005] On the side wall 10 of the housing side wall portion 1, a claw portion 2 extending vertically from the outer peripheral portion of the cover portion 2 is provided.
A projecting portion 12 extending in the horizontal direction is formed so as to protrude from the side surface so that the engaging portion 23 molded inward is hooked to the front end of the first member 1.

In such a configuration, when the cover 2 is placed on the housing side wall 1 so as to be overlaid thereon and pushed down (FIG. 15).
(In the direction of the dashed-dotted arrow), the claw portion 21 extending in the vertical direction of the outer peripheral portion of the cover portion 2 is pressed against the side surface of the housing side wall portion 1, and when pressed further down, gets over the convex portion 12 on the side surface of the housing side wall portion 1. The cover 2 is attached to the housing side wall 1 in a state where the claws 21 are pressed against each other so as to sandwich the housing side wall 1.

At the same time, the top view of FIG.
As shown in the side view of FIG. 2, the tip 22a and the folded portion 22b of the tongue piece 22 provided on the top surface 20 of the cover 2 are bent on a part of the housing side wall 1 and the top surface of the partition plate 11. When it comes into contact with the portion 11a and pushes down further, the tongue 22
Is approaching toward the inside of the top surface of the cover 2.

Further, a ground plate (not shown) may be inserted between the casing side wall 1 and the cover 2 in order to strengthen the high frequency ground.

[0009]

However, in response to the recent trend of thinning, in the above-described housing structure, for example, input / output terminals and power supply terminals required for the tuner are provided on the housing side wall portion 1. Since it is attached to the side surface, the state (number and shape) of the claw portions 21 extending vertically from the outer periphery of the cover portion 2 differs on the facing surfaces so as not to contact the input / output terminals and the power supply terminals. That was happening.

For this reason, the tongue piece 22 provided on the top surface of the cover 2 is desired by being pulled in a direction having a large number of claws 21 extending vertically from the outer periphery of the cover 2 or in a direction having a strong shape. It was not fixed in position, causing a variation in electrical performance, or in the worst case, the cover was detached.

Therefore, the cover 2 may be inclined. Then, the tongue piece 22 molded on the top surface of the cover 2 to strengthen the high-frequency ground has a portion that is far from the contact surface of the housing, and the grounding effect is reduced (weakened). Was. Further, the tongue piece 22 is formed by cutting out and bending the top surface of the cover portion 2, and the part cut out from the cut out portion is basically smaller, but may be slightly larger because it is hit with a mold when cutting out. There is a problem that the contact of the cut-out portion of the tip of the tongue piece 22 with the inside of the top surface of the cover causes unstable contact and performance variation.

Further, as shown in the top view of FIG. 17, in the case where the electric performance is improved by covering the housing independently with each of the plurality of covers 2,
There is also a problem in that the performance is deteriorated due to contact between them.

In order to further enhance the high-frequency grounding, a ground plate may be interposed between the casing side wall 1 and the cover 2. Place the ground plate, cover the cover 2 from above,
An earth plate is placed inside the cover part 2 and is placed on the side wall part 1 of the housing while holding the earth plate so as not to fall. For this reason, there has been a problem that the positioning of the ground plate is difficult, and the ground plate is easily displaced and cannot be installed at a predetermined position.

The present invention has been made in view of the above points, and provides an electronic device housing capable of improving the grounding effect between a housing side wall and a cover covering an opening thereof. The purpose is to do.

[0015]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a housing side wall portion in which a circuit board is housed, a housing side wall portion or the housing side wall portion In a housing for an electronic device, comprising a cover provided with a tongue piece that comes into contact with a partition plate provided inside the housing and covering an opening of the housing side wall part, the tongue piece of the cover part has a housing side wall part or It has a configuration having two contact portions that can come into contact with a partition plate provided inside the housing side wall portion.

Here, the fact that the tongue piece comes into contact with the casing side wall or the partition plate provided inside the casing side wall means that the tongue piece is provided inside the casing side wall or inside the casing side wall. Not only those that directly contact the partition plate but also those that the tongue pieces indirectly contact with the housing side wall or the partition plate provided inside the housing side wall via an earth plate or the like.

According to the first aspect of the present invention, the tongue of the cover has two contact portions that can come into contact with the housing side wall or the partition plate provided inside the housing side wall. So that the tongue of the cover can securely contact
Grounding such as high-frequency grounding can be strengthened.

Further, in the invention according to claim 2, in the electronic device casing according to claim 1, the tongue-shaped contact portion is provided inside the tongue of the cover portion.

According to the second aspect of the present invention, since the tongue-shaped contact portion is provided inside the tongue of the cover portion, two contact portions can be easily provided. In addition, the distance between the contact portion of the tongue piece of the cover portion and the portion in contact therewith can be shortened.

Further, according to the third aspect of the present invention, in the electronic device casing according to the second aspect, the tongue shape in which the tongue and the tip are in the opposite direction inside the tongue of the cover portion. Are provided.

According to the third aspect of the present invention, since the tongue of the cover is provided with a tongue-shaped contact portion in which the tongue and the tip are in opposite directions, the cover is provided. The tongue piece inside is bent in the direction opposite to the direction in which the tongue piece is bent, and the cover part can be smoothly attached to the side wall of the housing without the inside tongue piece sticking. In addition, since the distance between the tips of the tongue pieces, which are contact portions, can be increased, even if a slight displacement occurs, one of the tips (contact portions) comes into contact, and the And the earth such as a high-frequency earth can be further strengthened.

According to a fourth aspect of the present invention, in the electronic device casing according to the first aspect, a convex contact portion is provided inside the tongue piece of the cover portion.

According to the fourth aspect of the present invention, since the convex contact portion is provided inside the tongue piece of the cover portion, two contact portions can be easily provided, and The cover can be smoothly attached to the side wall of the housing without the inner tongue sticking.

According to the fifth aspect of the present invention, the side wall of the housing in which the circuit board is housed and the tongue contacting the side wall of the housing or the partition plate provided inside the side wall of the housing. A tongue of the cover portion is formed by cutting and bending one surface of the cover portion, and the cut portion of the cover portion is provided. The tip of the tongue piece is bent so as to be shifted in a direction parallel to one surface (cut surface) of the cover portion with respect to the trace. That is, for example, when a tongue piece is formed on the top surface of the cover part, the tongue piece of the cover part is bent by extruding it downward, sliding it in the horizontal direction, cutting and molding.

According to the fifth aspect of the invention, the tongue piece of the cover portion is formed by cutting and bending one surface of the cover portion, and the cut surface of the cover portion is formed on one surface of the cover portion (cut surface). ), So that the tip of the tongue is bent so as to be shifted in the direction parallel to
When the cover is attached to the housing side wall, the upper surface of the tongue near the bent portion comes into contact with the lower surface of the notch mark of the cover, and the tongue of the cover securely contacts the housing side wall. It is possible to strengthen the earth such as the high-frequency earth.

Further, in the invention according to claim 6, the housing side wall portion in which the circuit board is housed, and the tongue contacting the housing side wall portion or the partition plate provided inside the housing side wall portion. In a housing for an electronic device comprising a piece and a cover covering the opening of the side wall of the housing, a slit is provided in the cover, and a projection fitted to the slit is provided in the side wall of the housing. It has a configuration.

According to the sixth aspect of the present invention, the cover is provided with a slit, and the projection that fits into the slit is provided on the side wall of the housing. The protrusions on the side walls serve as cover stoppers to prevent the cover from shifting more than necessary,
The cover can be fixed at a desired position. Therefore, in a configuration having a plurality of covers as shown in FIG. 17, it is possible to prevent the covers from contacting each other. As a result, it is possible to improve the grounding effect between the housing side wall and the cover that covers the opening.

Further, in the invention according to claim 7, in the electronic device casing according to claim 6, a structure is provided in which a protrusion is provided on a projection on a side wall of the casing.

According to the seventh aspect of the present invention, since the hook is provided on the projection of the side wall of the housing, the cover can be securely fixed to the side wall of the housing.

According to the invention described in claim 8, in the electronic device housing according to claim 6, the length of the protrusion of the housing side wall portion is equal to the outer circumference of the cover portion hooked on the housing side wall side surface. It is configured to be longer than the length of the claw portion.

According to the eighth aspect of the present invention, the length of the protrusion on the side wall of the housing is longer than the length of the claw on the outer peripheral portion of the cover hooked on the side surface of the side wall of the housing. When the cover is attached to the housing side wall, the protrusion of the housing side wall is inserted into the slit of the cover before the claw on the outer periphery of the cover comes into contact with the side surface of the housing side wall. ,
The insertion can be easily performed, and the positioning can be easily performed.

According to the ninth aspect of the present invention, in the electronic device casing according to the sixth aspect, the projection on the side wall portion of the casing has a configuration in which the width of the tip is reduced. That is, C-surface processing or R-surface processing is performed on the tips of the protrusions on the housing side wall portion, or a two-stage configuration in which the width of the protrusion on the housing side wall portion is increased at the base portion and the vicinity of the tip is narrowed. .

According to the ninth aspect of the present invention, the projection on the side wall of the housing has a configuration in which the width of the tip is narrowed. The protrusion of the portion can be smoothly inserted into the slit of the cover portion. Furthermore, when the width of the projection on the side wall of the casing is made larger at the base and made smaller in the vicinity of the tip, it can also be used as a foot for securing the height of the face-down tuner.

According to the tenth aspect of the present invention, the side wall of the housing in which the circuit board is housed and the side wall of the housing hooked to the side wall of the housing by the claw provided on the outer periphery. In an electronic device housing including a cover covering an opening of a side wall and a ground plate interposed between the housing side wall and the cover, the ground plate is held inside the cover. In addition, a contact portion that contacts the inner surface of the claw portion of the cover portion is provided on the outer peripheral portion of the ground plate. Here, the term “contact the inner surface of the claw portion of the cover portion so that the ground plate is held inside the cover portion” means that the contact portion of the ground plate contacts the inner side surface of the claw portion of the cover portion and is fixed. Not only the grounding plate but also the grounding plate is fitted into the cover so that the contacting part of the grounding plate is hooked over the convex part protruding inward of the claw of the cover so that it does not fall. Including.

According to the tenth aspect of the present invention, the contact portion that contacts the inner surface of the claw portion of the cover portion is provided on the outer peripheral portion of the ground plate so that the ground plate is held inside the cover portion. With the configuration, once the ground plate is inserted into the cover, the ground plate does not fall off the cover, and only the contact part of the ground plate has a small gap with the cover, making it easy to insert. It is possible to further prevent displacement.

[0036]

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

First, a description will be given based on FIG. 1 which is a perspective view showing a basic schematic structure of the entire electronic device housing of each of the following embodiments.

As shown in FIG. 1, the electronic device housing is mainly provided on the housing side wall 1 in which the circuit board 15 is housed. A cover 2 having a tongue 22 in contact with the partition plate 11 provided on the housing 1 is covered from above and below by an alternate long and short dash line arrow in FIG. Be composed.

The tongue piece 22 of the cover 2 is attached to the casing side wall 1 or the partition plate 11 provided inside the casing side wall 1.
It has two contact portions that can come into contact with. Alternatively, the tongue piece 22 of the cover part 2 is formed by cutting and bending one surface of the cover part 2, and the tip of the tongue piece 22 is parallel to the one surface of the cover part 2 with respect to the cut mark of the cover part 2. It is bent so as to shift.

Further, a slit 24 is provided in the cover 2, and a projection 10 a fitted in the slit 24 is provided in the side wall 1 of the housing.

As in the case of the related art described with reference to FIG. 15, the casing side wall portion 1 is formed by bending a sheet metal to partition an even number of pairs of opposing side walls 10 and the inside thereof. The partition plate 11 is arranged as described above. Further, an input / output terminal 13 (F-type plug, DIN terminal, RCA jack, etc.) and a power supply terminal 14 (penetrating capacitor, etc.) are attached to the side wall 10. or,
A circuit board (finished board) 15 to which chip components, insertion components, and sometimes power supply terminals are attached is housed inside the housing.

On the other hand, the cover 2 is formed by bending a sheet metal in the same manner as the casing side wall 1 and is covered so as to cover the open upper or lower opening of the casing side wall. It comprises a top surface 20 and a claw portion 21 provided vertically along the outer peripheral portion. The top surface 20 is provided with a tongue piece 22 for contacting the partition plate 11 inside the housing side wall portion 1.

On the side wall 10 of the housing side wall 1, a claw 2 extending vertically from the outer periphery of the cover 2 is provided.
A projecting portion 12 extending in the horizontal direction is formed so as to protrude from the side surface so that the engaging portion 23 molded inward is hooked to the front end of the first member 1.

In such a configuration, when the cover portion 2 is put on the housing side wall portion 1 so as to overlap with the housing side portion 1 and is pressed down, the claw portion 21 extending in the vertical direction on the outer peripheral portion of the cover portion 2 becomes
When the cover portion 2 is pressed against the side surface of the housing side wall portion 1 and further pressed down, the claw portion 21 presses over the convex portion 12 on the side surface of the housing side wall portion 1 so as to sandwich the housing side wall portion 1, and the cover portion 2 Attach to 1. Embodiment 1 Embodiment 1 will be described with reference to FIG.

In the first embodiment, in the configuration shown in FIG. 1, the tongue piece 22 of the cover 2 is provided at two places where the tongue 22 can come into contact with the housing side wall 1 or the partition plate 11 provided inside the housing side wall 1. Having a contact portion. As shown in a partially enlarged view of FIG. 2, the tongue piece 22 is provided with a tongue-shaped contact part 22c whose tip is in the same direction. 2A is a top view of the tongue piece 22 of the present embodiment, and FIGS. 2B and 2C are side sectional views of the tongue piece 22 of the present embodiment.

In this embodiment, when the cover 2 is attached to the housing side wall 1 as described above, first, FIG.
As shown in FIG. 5, the tip portion 22a and the folded portion 22b of the tongue piece 22 provided on the top surface 20 of the cover portion 2 are bent at a bent portion 11a provided on a part of the housing side wall portion 1 and the partition plate 11 top surface. Contact When further depressed, the tip 22a of the tongue 22 approaches the inside of the top surface 20 of the cover 2, and the contact portion 22c (tip) having the shape of the inner tongue also becomes a part of the casing side wall 1 or a partition. It contacts a bent portion 11a provided on the top surface of the plate 11.

When the tongue piece 22 is cut out of the top surface 20 of the cover 2, a small tongue-shaped cut-out portion is formed inside the tongue piece 22 in the same direction as the tongue piece 22, and Can be formed by extruding.

As described above, according to the present embodiment, when the cover 2 as described above is put on the housing side wall 1, the folded portion 22b of the outer tongue 22 and the inner tongue 22c are connected to the housing side wall. 1 and the cover portion 2 can be grounded at a short distance at the contact portion, and a high-quality high-frequency ground can be obtained. Embodiment 2 Embodiment 2 will be described with reference to FIG.

In the second embodiment, in the configuration shown in FIG. 1, the tongue piece 22 of the cover part 2 can be brought into contact with the housing side wall part 1 or the partition plate 11 provided inside the housing side wall part 1 at two locations. Having a contact portion. As shown in the partial enlarged view of FIG. 3, a tongue-shaped contact portion 22c 'is provided in which the tongue 22 and the tip end are in the opposite direction. 3A shows the tongue piece 2 of the present embodiment.
2 is a top view, and (b) and (c) are side sectional views of the tongue piece 22 of the present embodiment.

In this embodiment, as described above, when the cover 2 is attached to the housing side wall 1, first, FIG.
As shown in FIG. 5, the tip portion 22a and the folded portion 22b of the tongue piece 22 provided on the top surface 20 of the cover portion 2 are bent at a bent portion 11a provided on a part of the housing side wall portion 1 and the partition plate 11 top surface. Contact When further depressed, the tip portion 22a of the tongue piece 22 approaches the inside of the top surface 20 of the cover portion 2, and the contact portion 22c '(tip portion) having an inner tongue shape.
Also, it comes into contact with a part of the housing side wall portion 1 and the bent portion 11 a provided on the top surface of the partition plate 11.

When the tongue piece 22 is cut out of the top surface 20 of the cover 2, a small tongue-shaped cut-out part is formed inside the tongue piece 22 in the opposite direction to the inside of the tongue piece 22. Can be formed by extruding.

As described above, according to the present embodiment, when the cover 2 is placed on the side wall 1 of the housing, the folded portion 22b of the outer tongue 22 and the inner tongue 22c 'are formed on the side wall of the housing. Since it is in contact with the portion 1, the cover portion 2 can be grounded at a short distance at the contact portion, and a high-quality high-frequency ground can be obtained.

Further, according to the present embodiment, unlike the above-described embodiment, the inner tongue piece 22c 'is formed so that the tip of the inner tongue piece 22c is opposite to that of the outer tongue piece 22.
2 in the opposite direction to the direction of bending
c ′ is bent and the inner tongue 22
c ′ is hard to smash, and the cover 2 is attached to the housing side wall 1.
Can be mounted smoothly. Embodiment 3 Embodiment 3 will be described with reference to FIG.

In the third embodiment, in the configuration shown in FIG. 1, the tongue piece 22 of the cover portion 2 can be in contact with the housing side wall portion 1 or the partition plate 11 provided inside the housing side wall portion 1 at two locations. Having a contact portion. Then, as shown in a partially enlarged view of FIG. 4, a convex contact portion 22 d is provided inside the tongue piece 22 of the cover portion 2. FIG.
(A) is a top view of the tongue piece 22 of the present embodiment,
(B) It is a side sectional view of the tongue piece 22 of this embodiment.

In this embodiment, as described above, when the cover 2 is attached to the housing side wall 1, first, FIG.
As shown in FIG. 5, the tip portion 22a and the folded portion 22b of the tongue piece 22 provided on the top surface 20 of the cover portion 2 are bent at a bent portion 11a provided on a part of the housing side wall portion 1 and the partition plate 11 top surface. Contact When the tongue piece 22 is further depressed, the tip 22a of the tongue piece 22 approaches the inside of the top surface 20 of the cover 2, and the protruding portion 22d is also bent at a part of the housing side wall 1 and the top surface of the partition plate 11. It contacts the part 11a.

The projection 22 of the tongue piece 22 can be formed by extruding (doweling) the inside of the tongue piece 22 on the top surface 20 of the cover 2.

As described above, according to the present embodiment, when the cover 2 as described above is put on the housing side wall 1, the folded portion 22b of the outer tongue piece 22 and the projection 22d inside the same are formed. Since the contact portion is in contact with the side wall portion 1, the cover portion 2 can be grounded at a short distance at the contact portion, so that a high-quality high-frequency ground can be obtained. Embodiment 4 Embodiment 4 will be described with reference to FIG.

In the fourth embodiment, in the configuration shown in FIG. 1, the tongue piece 22 of the cover 2 is formed by cutting the top surface 20 of the cover 2 and bending it. The tongue 22 is bent so that the tip of the tongue 22 is shifted in a direction parallel to the top surface 20.

Conventionally, the tongue piece 22 of the cover part 2 of the present embodiment is cut out as shown in a partially enlarged top view of FIG. 5A and cut out as shown in a partially enlarged side view of FIG. 5B. Is formed by cutting the tongue piece 22 in the direction of the arrow of "", but by sliding it in the direction of the arrow of "push" in FIG. 5B. That is, as shown in the partially enlarged top view of FIG. 5C, by cutting out at a dotted line 22 'in the figure and then pushing in the horizontal direction (horizontal direction in the figure), the partial enlarged side view of FIG. As shown, the tongue piece 22 ′ can be formed like the tongue piece 22 instead of the dotted tongue piece 22 ′ in the drawing.

Therefore, according to the present embodiment, the tongue piece 22 is bent so that the tip of the tongue piece 22 is shifted in a direction parallel to the top surface 20 with respect to the cut mark of the top surface 20 of the cover portion 2. Therefore, the cover 2 is attached to the housing side wall 1.
When the tongue piece 22 is attached, the upper surface near the bent portion of the tongue piece 22 comes into contact with the lower surface of the top surface 20 of the cover part 2, and the tongue piece 22 can reliably contact the housing side wall part 1 and the like, and high-frequency grounding is performed. Can be strengthened. Embodiment 5 Embodiment 5 will be described with reference to FIG.

In the fifth embodiment, as shown in FIG. 6, a tongue 22 of the fifth embodiment shown in FIG. 5 is provided with a folded portion 22b near the tip 22a.

Conventionally, the tongue piece 22 of the cover portion 2 of the present embodiment is cut out as shown in a partially enlarged top view of FIG. 6A and cut out as shown in a partially enlarged side view of FIG. 6B. Is formed by cutting the tongue piece 22 in the direction of the arrow "", but by sliding it in the direction of the arrow "push" in FIG. 6B. That is, as shown in the partially enlarged top view of FIG. 6C, by cutting out at a dotted line 22 'in the figure and then pushing in the horizontal direction (horizontal direction in the figure), the partial enlarged side view of FIG. As shown, the tongue piece 22 ′ can be formed like the tongue piece 22 instead of the dotted tongue piece 22 ′.

Therefore, in addition to the fifth embodiment,
The contact of the tongue piece 22 with the casing side wall 1 and the like can be performed more reliably, and the high-frequency earth can be further strengthened.

In the first to third embodiments, as in the fifth and sixth embodiments, the tip of the tongue piece 22 extends in a direction parallel to the top surface 20 with respect to the cut mark on the top surface 20 of the cover 2. May be bent so as to be shifted.

In the first to sixth embodiments, a single tongue piece 22 has been described. However, a plurality of such tongue pieces 22 are formed on the top surface 20 of the cover 2. Embodiment 6 Embodiment 6 will be described with reference to FIGS.

In the sixth embodiment, as described above with reference to FIG. 1, the cover portion 2 is provided with the slit 24, and the projection 10a fitted to the slit 24 is provided on the housing side wall portion 1. FIG. 7 is an enlarged perspective view of a main part showing the state after the attachment.

Therefore, the present embodiment is different from the above-mentioned conventional one in that the projection 10a is provided on the upper end or lower end of the housing side wall 1 and the slit 24 is provided on the top surface 20 of the cover 2. It is a point.

The projection 10a formed on the upper end or lower end of the casing side wall 1 can be formed on the casing side wall 1 in the process of punching and bending a sheet metal in the same manner as in the conventional case. . Similarly, the slit 24 formed on the top surface 20 of the cover 2 can be formed into the cover 2 in a process of punching and bending a sheet metal similarly to the conventional one.

Then, as shown in FIG.
By covering the cover portion 2 provided with the cover on the housing side wall portion 2, the projection 10 a hits the outer peripheral portion of the slit 24 and functions as a stopper, thereby preventing the cover portion 2 from being unnecessarily displaced.

As described above, according to the present embodiment, the projections 10 of the housing side wall 1 are formed by the slits 24 of the cover 2.
a serves as a cover stopper to prevent the cover from being displaced more than necessary, fix the cover at a desired position, and obtain a high-quality high-frequency ground.

Further, as shown in the partially enlarged side view of FIG. 8, the gap formed at both ends of the slit 24 and the projection 10a is further reduced by making the cover portion 2 smaller in the direction in which the cover 24 is pulled. Can be prevented. Embodiment 7 Embodiment 7 will be described with reference to FIG.

The seventh embodiment is the same as the projection 10 of the sixth embodiment.
a is provided with a hook. That is, as shown in a partially enlarged side view of FIG. 9, a notch is formed at a position where the slit 24 of the cover portion 2 is in contact with the projection 10a of the housing side wall portion 1 and these are hooked. . Thus, even if a deviation occurs due to an imbalance in the strength of the claw portion 21 of the cover portion 2, the top surface 20 of the cover portion 2 can be pressed so as to press against the housing side wall portion 1, and the position of the cover portion 2 Deviation can be prevented.

As described above, according to the present embodiment, since the projection is provided on the projection 10a of the housing side wall 1, the cover 2 can be securely fixed to the housing side wall 1. . Embodiment 8 Embodiment 8 will be described with reference to FIG.

In the eighth embodiment, the protrusion 10 of the sixth embodiment is used.
The length of “a” is longer than the length of the claw portion 21 on the outer peripheral portion of the cover portion 2 that hangs on the side surface of the housing side wall portion 1. That is, as shown in the partially enlarged side view of FIG. 10A, the length A of the projection 10a is made longer than the length B of the claw portion 21 formed in the vertical direction of the outer peripheral portion of the cover portion 2, and this configuration is adopted. When the cover portion 2 is attached to the housing side wall portion 1 as shown in FIG. At this time, the cover can be positioned from a position that is not affected by the state of the claw 21 of the cover. Therefore, by utilizing the slits 24 provided in the cover 2, the cover 2 can be easily inserted into the housing side wall 1 and the positioning can be performed.

As described above, according to the present embodiment, since the length of the projection 10a of the casing side wall 1 is longer than the length of the claw 21 on the outer peripheral portion of the cover 2, the cover side wall 1 has 2 is attached, the claw portion 21 is attached to the side surface 10 of the housing side wall portion 1.
Before the contact with a, the projection 10a of the housing side wall 1 is inserted into the slit 24 of the cover 2, so that the insertion can be easily performed and the positioning can be easily performed. Embodiment 9 Embodiment 9 will be described with reference to FIGS.

The ninth embodiment is the same as the projection 10 of the sixth embodiment.
a is a shape in which the width of the tip is narrowed. That is, the upper surface of the protrusion 10a provided at the upper end or the lower end of the housing side wall portion 1 is subjected to the C surface or the R surface processing. Regarding those states, a partially enlarged side view of FIG. 11A is subjected to C-plane processing, and FIG.
Each of the partially enlarged side views of FIG.

Therefore, according to the present embodiment, even if a slight displacement occurs using the slit 24 provided in the cover 2, the protrusion 10 can be formed by the C-plane or the R-plane processing.
Since the cover portion 2 can be inserted without being caught by a, it is possible to cope with a cover closing step by an automatic machine, and the cover portion 2 can be easily inserted into the housing side wall portion 1 and positioned.

In the eighth embodiment,
Similar to Embodiment 8, the tip of the projection 10a may be subjected to C-plane or R-plane processing. The state of the C-plane processed is shown in the partially enlarged side view of FIG. FIG. 12 (b) is a partially enlarged side view showing the situation. Embodiment 10 Embodiment 10 will be described with reference to FIG.

The tenth embodiment is the same as the projection 1 of the sixth embodiment.
0a is a shape in which the width of the tip is narrowed.
Unlike the ninth embodiment, as shown in a partially enlarged side view of FIG. 13, the protrusion 10a provided at the upper end or the lower end of the housing side wall 1 has a two-stage structure. Similarly to the above, the length of the protrusion 10a is longer than the length of the claw portion 21 on the outer peripheral portion of the cover portion 2 which is hooked on the side surface of the housing side wall portion 1.

Therefore, according to the present embodiment, the cover 2 can be easily inserted into the housing side wall 1 and the positioning can be performed. In addition, the projection 10a can be used as a foot for securing the height of the protruding tuner. Available.

Note that any of Embodiments 6 to 10 above
Any of the above embodiments 1 to 5 may be combined.

Further, in a configuration in which a plurality of cover portions are provided as shown in FIG. 17, the configurations of Embodiments 6 to 10 can be applied. With such an application, it is possible to prevent a plurality of cover portions from coming into contact with each other. Embodiment 11 Embodiment 11 will be described with reference to FIG.

In the eleventh embodiment, as shown in FIG. 14, an earth plate 3 is interposed between the housing side wall 1 and the cover 2 in the configuration shown in FIG. A contact portion that contacts the inner surface of the claw portion 21 of the cover portion 2 is provided on the outer peripheral portion of the ground plate 3 so as to be held inside the cover portion 2. That is, a part of the four sides of the claw portion 31 on the outer peripheral portion of the ground plate 3 is provided on a hook portion formed inward from the outer peripheral portion of the top surface 20 of the cover portion 2 to the tip portion of the claw portion 21 formed vertically. The length of the claw portion 32 is increased so that these gaps are reduced to make contact. FIG.
2A is a partially enlarged side view in which a part after installation is cut away, and FIG. 2B is a top view of the ground plate 3.

Therefore, according to the present embodiment, the cover 2 is held so that the ground plate 3 is held inside the cover 2.
Since the abutting portion (claw portion 32) that contacts the inner surface of the claw portion 21 is provided on the outer peripheral portion of the ground plate 3, once the ground plate 3 is fitted into the cover portion 2, it is caught by the cover portion 2 claw portion. 21, the ground plate 3 does not fall off the cover portion 2, and only a part of the contact portion (claw portion 32) of the ground plate 3 has a small gap with the cover portion 2. As a result, it can be easily inserted, and the displacement can be prevented.

The structure of the ground plate of the eleventh embodiment is as follows.
Any of the above embodiments 1 to 10 may be combined,
Further, the present invention may be further applied to a combination of a plurality of the first to tenth embodiments.

[0086]

As described above, according to the first aspect of the present invention, the tongue piece of the cover portion can come into contact with the housing side wall or the partition plate provided inside the housing side wall. , The contact by the tongue of the cover portion can be reliably performed, and the ground such as the high-frequency ground can be strengthened.

According to the second aspect of the present invention, since the tongue-shaped contact portion is provided inside the tongue of the cover portion, two contact portions are easily provided. In addition to this, the distance between the contact portion of the tongue piece of the cover portion and the portion in contact therewith can be shortened.

According to the third aspect of the present invention,
Since the tongue of the cover is provided with a tongue-shaped contact portion in which the tongue and the tip end are in opposite directions, the inside of the tongue in the direction opposite to the direction in which the tongue of the cover bends is bent. The cover can be smoothly attached to the housing side wall without the tongue being bent and the inner tongue sticking.

According to the fourth aspect of the present invention, since the convex contact portion is provided inside the tongue piece of the cover portion, two contact portions can be easily provided. At the same time, the cover portion can be smoothly attached to the housing side wall portion without the tongue pieces inside sticking.

According to the fifth aspect of the present invention, the tongue piece of the cover portion is formed by cutting and bending one surface of the cover portion, and the cut surface of the cover portion is formed with respect to the cut mark of the cover portion. Since the tip of the tongue is bent so as to be displaced in a direction parallel to the notch surface), when the cover is attached to the side wall of the housing, the top surface near the bent portion of the tongue is covered with the cover. And the tongue of the cover can securely contact the housing side wall and the like, and the ground such as the high-frequency ground can be strengthened.

According to the sixth aspect of the present invention, the cover is provided with a slit, and the projection that fits into the slit is provided on the side wall of the housing. The protrusion on the side wall of the housing functions as a cover stopper, preventing the cover from being displaced more than necessary, and fixing the cover at a desired position.

Further, according to the invention of claim 7,
Since the hooking portion is provided on the protrusion of the housing side wall, the cover can be securely fixed to the housing side wall.

According to the present invention, the length of the projection on the side wall of the housing is longer than the length of the claw on the outer peripheral portion of the cover hooked on the side surface of the side wall of the housing. Therefore, when the cover portion is attached to the housing side wall portion, the protrusion of the housing side wall portion is inserted into the slit of the cover portion before the claw portion on the outer peripheral portion of the cover portion contacts the side surface of the housing side wall portion. Thus, the insertion can be easily performed and the positioning can be easily performed.

According to the ninth aspect of the present invention, since the protrusion on the side wall portion of the housing is formed to have a shape with a narrowed tip, the housing can be attached to the side wall portion of the housing. The protrusion of the body side wall can be smoothly inserted into the slit of the cover. Furthermore, when the width of the projection on the side wall of the casing is made larger at the base and made smaller in the vicinity of the tip, it can also be used as a foot for securing the height of the face-down tuner.

According to the tenth aspect of the present invention,
The abutment for contacting the inner surface of the claw of the cover is provided on the outer periphery of the ground plate so that the ground plate is held inside the cover. Also, the ground plate does not fall off the cover, and only a part of the contact portion of the ground plate has a small gap with the cover, so that it can be easily inserted and the displacement can be prevented.

Therefore, according to the present invention, it is possible to improve the grounding effect between the housing side wall and the cover that covers the opening.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a basic schematic structure of an entire electronic device housing according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view showing a tongue piece according to the first embodiment;
(A) is its top view, (b), (c) is its side sectional view.

FIG. 3 is a partially enlarged view showing a tongue piece according to a second embodiment;
(A) is its top view, (b), (c) is its side sectional view.

FIG. 4 is a partially enlarged view showing a tongue piece according to a third embodiment;
(A) is its top view, (b), (c) is its side sectional view.

FIG. 5 is a partially enlarged view showing a tongue piece according to a fourth embodiment;
(A), (c) is the top view, (b), (d) is the side view seen from the front-end | tip part direction.

FIG. 6 is a partially enlarged view showing a tongue piece according to a fifth embodiment;
(A), (c) is the top view, (b), (d) is the side view seen from the front-end | tip part direction.

FIG. 7 is an enlarged perspective view of a main part showing a slit and a projection according to a sixth embodiment.

FIG. 8 is a partial enlarged side view showing a slit and a projection according to a sixth embodiment.

FIG. 9 is a partial enlarged side view of a main part showing slits and projections according to a seventh embodiment.

FIG. 10 is a partial enlarged side view showing a slit and a protrusion according to an eighth embodiment.

FIG. 11 is a partial enlarged side view of a main part showing a slit and a protrusion according to a ninth embodiment.

FIG. 12 is a partial enlarged side view illustrating a slit and a protrusion according to a ninth embodiment.

FIG. 13 is a partial enlarged side view showing a slit and a protrusion of the tenth embodiment.

FIG. 14 is a view showing a ground plate according to a tenth embodiment;
(A) is an enlarged side view of a main part with a part cut away, (b)
Is a top view of the ground plate.

FIG. 15 is a perspective view showing a schematic structure of a conventional electronic device housing.

FIG. 16 is a perspective view showing a schematic structure of a conventional electronic device housing.

FIG. 17 is a top view illustrating a schematic structure of an electronic device housing having a configuration in which two cover portions are provided.

FIG. 18 is a partially enlarged view showing a tongue piece of a conventional electronic device housing, where (a) is a top view thereof and (b) is a side sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case side wall part 2 Cover part 3 Ground plate 10 Side wall 10a Projection 11 Partition plate 15 Circuit board 20 Top surface 21 Cover part claw part 22 Tongue piece 22a Tongue piece tip part 22b Tongue piece turn back part 22c, 22c 'Tongue shape Contact part (inner tongue piece) 22d Tongue piece convex part 32 Ground plate claw part (contact part)

Claims (10)

[Claims] 1. A housing side wall portion having a circuit board housed therein, and a tongue piece that comes into contact with the housing side wall portion or a partition plate provided inside the housing side wall portion. An electronic device housing comprising a cover covering the opening, wherein two tongues of the cover can come into contact with the housing side wall or a partition plate provided inside the housing side wall. A housing for an electronic device, comprising: 2. The electronic device housing according to claim 1, wherein a tongue-shaped contact portion is provided inside the tongue of the cover portion. 3. The electronic device casing according to claim 2, wherein a tongue-shaped contact portion is provided inside the tongue of the cover portion, the tongue and the tip end being in opposite directions. An electronic device housing characterized by the above-mentioned. 4. The electronic device casing according to claim 1, wherein a convex contact portion is provided inside the tongue piece of the cover portion. 5. A housing side wall portion having a circuit board housed therein, and a tongue piece which comes into contact with the housing side wall portion or a partition plate provided inside the housing side wall portion. A cover for covering the opening, wherein the tongue of the cover is formed by cutting and bending one surface of the cover, and the cover is formed with respect to a cut mark of the cover. Wherein the tip of the tongue piece is bent so as to be displaced in a direction parallel to one surface of the electronic device. 6. A housing side wall portion having a circuit board housed therein and a tongue piece which comes into contact with the housing side wall portion or a partition plate provided inside the housing side wall portion. An electronic device housing comprising: a cover that covers an opening; wherein a slit is provided in the cover, and a protrusion that fits into the slit is provided in the housing side wall. Equipment housing. 7. The electronic device housing according to claim 6, wherein a hook portion is provided on a protrusion on the side wall of the housing. 8. The housing for an electronic device according to claim 6, wherein a length of the protrusion of the side wall of the housing is a length of a claw portion of an outer peripheral portion of the cover that is hooked on a side surface of the side wall of the housing. An electronic device housing characterized by being longer than the above. 9. The housing for an electronic device according to claim 6, wherein the protrusion on the side wall portion of the housing has a shape in which a width of a tip is narrowed. 10. A housing side wall portion in which a circuit board is housed, and a cover which is hooked on a side surface of the housing side wall portion by a claw provided on an outer peripheral portion to cover an opening of the housing side wall portion. Department and
In a housing for an electronic device including a grounding plate interposed between the housing side wall and the cover, such that the grounding plate is held inside the cover.
A housing for an electronic device, wherein a contact portion that contacts an inner surface of a claw portion of the cover portion is provided on an outer peripheral portion of the ground plate.