JP2011129228A - Casing for electrical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To paste a top plate to a top cover, without making a mistake of a pasting surface, in a casing for an electric device. <P>SOLUTION: The casing 4 includes a top cover 5 having a top board 51, and a bottom chassis 6 having a bottom plate 61, on which an electronic component 3 is loaded. The top cover 5 has a top plate 52 which is a plate-like weight, and the top board 51 is fixed to the bottom chassis 6 to cover the electronic component 3. The top plate 52 is pasted to the bottom surface of the top board 51 and has a projected part 55, projecting onto a surface opposite a pasting surface 54 to the top board 51. In the casing 4, even if a worker pastes the top plate 52 to the top cover 5 on the surface opposite the pasting surface 54 by mistake, the projected part 55 will block the pasting. Consequently, the worker pastes the top plate 52 to the top cover 5, without making mistake in determining the pasting surface 54. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electrical equipment casing used for electrical equipment such as an optical disk device.

  2. Description of the Related Art Conventionally, it is used in an electrical apparatus such as an optical disc device having an optical pickup for reproducing or recording data on an optical disc such as a BD (Blu-ray Disc), a DVD (Digital Versatile Disc), or a CD (Compact Disc). Various housings for electric devices (hereinafter referred to as housings) are known (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). The optical disk device provided with such a case has been devised in various ways to realize as low a cost as possible. On the other hand, since the weight of the case is light, stable operation of the optical pickup due to vibrations of the case, etc. May not be secured. Therefore, for high-priced models, it is desirable to stabilize the operation of the optical pickup by increasing the weight of the casing. However, a separate casing is designed and manufactured for a high-priced model with a relatively small production volume. It is not reasonable to do. In view of this, it is conceivable to increase the weight of the apparatus by attaching a weight to the housing and to ensure stable operation of the optical pickup.

  4 and 5 show a configuration of the optical disc apparatus 101 in which the weight of such a casing is increased. The optical disc apparatus 101 includes a loader 102 having an optical pickup (not shown), an electronic component 103 for driving and controlling the loader 102, and a housing 104 to which a top plate 152 that is a plate-like weight is attached. .

  The housing 104 includes a top cover 105 having a top plate 151, a bottom chassis 106 having a bottom plate 161 on which the loader 102 and the electronic component 103 are placed, and a front panel 107 attached to the bottom chassis 106. The top cover 105 is attached to the bottom chassis 106 so that the top plate 152 is attached to the lower surface of the top plate 151 and the top plate 151 covers the electronic component 103 and the loader 102.

  If the top plate 152 is attached to the top plate 151 by screwing, the number of screws exposed on the surface of the top cover 105 increases, which is not desirable in terms of design. 154 and the lower surface of the top plate 151 are bonded with a double-sided tape 153. The affixing surface 154 is processed to improve adhesion to the double-sided tape 153 so that the top plate 152 is not easily detached from the top cover 105, and is shown in gray in FIG. Since the optical disk apparatus 101 is heavier due to the top plate 152, it is possible to ensure stable operation of the optical pickup.

  However, since the top plate 152 is manually attached to the top cover 105, the operator makes a mistake in the determination of the attachment surface 154, and the surface opposite to the attachment surface 154 is attached to the top plate 151. There is a risk of making mistakes. When the surface opposite to the pasting surface 154 is pasted on the top plate 151 by mistake, the surface opposite to the pasting surface 154 has not been processed to improve the adhesion. Adhesion is lowered, and the top plate 152 is easily detached from the top cover 105.

  Further, as shown in FIG. 5, the optical disk apparatus 101 has the electronic component 103 when the top plate 152 is detached from the top plate 151 and falls in the arrow direction due to a decrease in the adhesive force of the double-sided tape 153 due to deterioration over time. There is a risk of contact with the detached top plate 156 (top plate surrounded by a broken line) and damage.

JP 2002-158454 A Japanese Patent No. 2615981 Noto 2501817

  The present invention has been made to solve the above problem, and an object of the present invention is to provide a casing for an electric device that can attach a top plate to a top cover without making a mistake in the attaching surface.

  In order to achieve the above object, the invention of claim 1 comprises a top cover having a top plate and a bottom chassis having a bottom plate on which electronic components are placed, and the top plate covers the electronic components. In the electrical equipment casing in which the top cover is attached to the bottom chassis, the top cover has a top plate that is a plate-like weight, and the top plate is attached to the lower surface of the top plate, It has a convex part which protruded on the surface on the opposite side to the sticking surface to a top plate.

  According to a second aspect of the present invention, in the electrical equipment casing according to the first aspect, the bottom chassis has a support portion that is installed on the bottom plate and abuts against the top plate. When the top plate is detached from the top plate, the top plate is supported.

  According to the first aspect of the present invention, even if an operator makes a mistake and tries to attach the top plate to the top cover on the surface opposite to the sticking surface, the convex portion cannot be attached because it interferes. Thereby, an operator can affix a top plate on a top cover, without misidentifying the affixing surface.

  According to the invention of claim 2, when the top plate is detached from the top cover, the top plate is supported by the support portion and does not fall. Thereby, it can prevent that an electronic component contacts with the detached | separated top plate and is damaged.

1 is a perspective view of an optical disc apparatus using an electrical equipment casing according to an embodiment of the present invention. Sectional drawing of the optical disk device. The perspective view of the top cover with which the top plate of the housing | casing for the electric equipment was affixed. The perspective view of the optical disk apparatus using the housing | casing for conventional electric equipment. Sectional drawing of the optical disk device.

  An optical disk device that is an electrical device using an electrical device casing (hereinafter referred to as a casing) according to an embodiment of the present invention will be described with reference to FIGS. An optical disc apparatus 1 includes a loader 2 having an optical pickup (not shown), a large-scale integrated circuit (LSI) for driving and controlling the loader 2, an electronic component 3 such as a transformer, and a box for housing these members. A body-shaped housing 4 is provided. The optical pickup of the loader 2 reads information recorded on an optical disc such as a BD (Blu-ray Disc), DVD (digital versatile disc), or CD (Compact Disc), and writes information on the optical disc.

  The housing 4 includes a top cover 5 having a top plate 51, a bottom chassis 6 having a bottom plate 61 on which the loader 2 and electronic components 3 are placed, a front panel on which a display 71 and an operation unit 72 are arranged on the front surface. 7 The top cover 5 has a top plate 52 that is a plate-like weight, and is attached to the bottom chassis 6 with screws so that the top plate 51 covers the electronic component 3. The front panel 7 has an opening 73, passes through the front surface of the loader 2 from the opening 73, makes the front surface of the loader 2 and the front surface of the front panel 7 smooth, and is attached to the bottom chassis 6 with screws. .

  The top plate 52 has a sticking surface 54 attached to the lower surface of the top plate 51 using a double-sided tape 53 and a convex portion 55 formed on the surface opposite to the sticking surface 54 by burring or the like. The affixing surface 54 has been processed to improve the adhesion with the double-sided tape 53, and is shown in gray in FIG. In the optical disk apparatus 1, since the weight of the apparatus is increased by the top plate 52, a stable operation of the optical pickup can be ensured. The convex portion 55 may be formed by attaching a member such as a cone shape, a pyramid shape, a cylindrical shape, or a prism shape to the surface opposite to the pasting surface 54 instead of burring. The number, position, protrusion height, and the like of the protrusions 55 are not particularly limited. However, when the top plate 52 is reversed and attached to the top plate 51, it becomes unstable and the front and back are reversed. Anything that can be understood.

  The bottom chassis 6 includes a countersunk screw 62 that is a support part that contacts the top plate 52 and a holding part 63 that is formed on the bottom plate 61 and holds the screwed countersunk screw 62. The holding portion 63 can adjust the height position of the head of the countersunk screw 62 by adjusting the length of the countersunk screw 62 to be screwed. The height position of the head of the countersunk screw 62 is adjusted to a position where the head of the countersunk screw 62 contacts the top plate 52 when the top cover 5 is attached to the bottom chassis 6. In addition to the flat head screws 62, the support portion may be a columnar member that is erected on the bottom plate 61 and adjusted to a length that contacts the top plate 52.

  In the case 4 of the present embodiment configured as described above, even if an operator makes a mistake and tries to attach the top plate 52 to the top cover 5 on the surface opposite to the attaching surface 54, the convex portion 55 is obstructive. Can not be installed. Accordingly, the top plate 52 can be attached to the top cover 5 without the operator making a mistake in determining the attachment surface 54. Further, when the top plate 52 is detached from the top plate 51 due to a decrease in the adhesive force of the double-sided tape 53 due to aging or the like, the top plate 52 is supported by the countersunk screws 62 and does not fall. Thereby, it is possible to prevent the electronic component 3 from being damaged by coming into contact with the detached top plate 52.

  In addition, this invention is not restricted to the structure of said embodiment, A various deformation | transformation is possible in the range which does not change the summary of invention. For example, in the above embodiment, the electric device is an optical disk device, but the electric device may be a digital TV tuner, a game device, or the like.

1 Optical disk device (electric equipment)
3 Electronic parts 4 Case (Electrical equipment case)
5 Top cover 51 Top plate 52 Top plate 54 Attaching surface 55 Convex part 6 Bottom chassis 61 Bottom plate 62 Countersunk screw (support part)

Claims (2)

For an electrical device comprising a top cover having a top plate and a bottom chassis having a bottom plate on which electronic components are placed, and the top cover being attached to the bottom chassis so that the top plate covers the electronic components In the housing,
The top cover has a top plate that is a plate-like weight,
The top plate has a convex portion that is affixed to a lower surface of the top plate and protrudes on a surface opposite to a surface to be attached to the top plate. The bottom chassis is installed on the bottom plate and has a support portion that comes into contact with the top plate,
2. The electrical equipment casing according to claim 1, wherein the support portion supports the top plate when the top plate is detached from the top plate. 3.

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