JP2010074014A - Box body for electronic equipment and electronic equipment with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a box body for electronic equipment capable of fixing a circuit board in the box body by a small number of parts, and to provide electronic equipment with the same. <P>SOLUTION: The circuit board 50 is connected and fixed to a cover 30 for the box body by board fixtures 40, 48 and 49 so that the lower end side of the circuit board 50 faces the bottom board 14 of the box body. A first bridge 15 brought into contact with one surface of the circuit board 50 and a second bridge 16 brought into contact with the other surface of the circuit board 50 are formed to the bottom board 14 by a cut-erecting press working to a part of the bottom board 14 made of a metal. The lower side of the circuit board 50 is held between the first bridge 15 and the second bridge 16. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device casing that houses a circuit board, and an electronic device including the same.

  As a conventional housing for an electronic device that houses a circuit board, for example, there is one disclosed in Patent Document 1 below.

  In this electronic device casing, one end of the circuit board is fixed to the first surface of the casing with a screw or the like, while a groove-type guide rail is fixed to the second surface of the casing. The circuit board is held in the casing by inserting the other end of the circuit board into the rail.

Japanese Patent Laid-Open No. 06-112682

  However, in the case of a conventional electronic device casing, a fixing tool such as a screw is required to fix the guide rail that regulates the position of the circuit board to the main body of the housing, and the portion to which the connecting tool is attached is a guide rail. There is a problem that the number of parts increases and the number of manufacturing steps increases.

  The present invention pays attention to such problems of the prior art, and includes an electronic device casing that can reduce the number of components and reduce the number of manufacturing steps while holding the circuit board firmly. An object is to provide electronic equipment.

An electronic device casing according to an invention for solving the above problems is as follows.
In a housing for an electronic device comprising a metal main body in which a storage recess for storing a circuit board is formed, and a lid for closing the opening of the storage recess,
A board fixture for connecting and fixing the circuit board to the lid so that one end of the circuit board faces a bottom plate forming the bottom of the housing recess in a state where the opening of the housing recess is closed with the lid. A first substrate position restricting portion that protrudes in a direction toward the opening of the housing recess and is in contact with one surface of the circuit board; and a second substrate position restriction that is in contact with the other surface of the circuit board. The portion is formed by cutting and raising a part of the bottom plate.

  According to the present invention, the position of one end side of the circuit board is regulated by the first board position regulating part and the second board position regulating part formed by cutting and raising the part of the bottom plate of the housing. As a result, the number of parts can be reduced and the number of manufacturing steps can be reduced.

  Hereinafter, embodiments of an electronic device according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1, 2, and 4, the electronic apparatus according to the present embodiment electrically connects a plurality of circuit boards 50, a housing 10 that houses the circuit boards 50, and each circuit board 50 and the outside. Connector 55. 2 is an internal perspective view of the electronic apparatus, and FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.

  The housing 10 serves as a board attachment for connecting and fixing the circuit board 50 to the lid 30, a main body 11 in which a housing concave part for housing a plurality of circuit boards 50 is formed, a lid 30 for closing the opening of the housing concave part. Mounting bracket 40 and screws 48 and 49.

  The main body 11 of the housing 10 includes a main concave portion forming body 12 having a pair of first side plates 13 and a bottom plate 14 facing each other, and a pair of second side plates 23 adjacent to the pair of first side plates 13 of the main concave portion forming body 12. And.

  As shown in FIG. 6, a lid mounting flange portion 17 facing the bottom plate 14 is formed on the upper end side of each first side plate 13 of the main recess forming body 12. A pair of side plate mounting flange portions 18 facing each other are formed on both sides of the first side plate 13. The bottom plate 14 of the main recess forming body 12 is formed with a first bridge portion 15 in contact with one surface of the circuit board 50 and a second bridge portion 16 in contact with the other surface of the circuit board 50. FIG. 6 is a view taken along arrow VI in FIG. 1 in a state where the second side plate 23 is not attached.

  As shown in FIGS. 1 and 4, the second side plate 23 is connected and fixed to the side plate mounting flange portion 18 of the main recess forming body 12 with screws 29.

  As shown in FIGS. 2, 4, and 6, the mounting bracket 40 has an L shape, and a circuit board 50 is connected and fixed to the portion corresponding to the long side of the L shape of the mounting bracket 40 with a screw 48. The A portion corresponding to the L-shaped short side of the mounting bracket 40 is connected and fixed to the back surface of the lid 30 with a screw 49. The lower end side portion of the circuit board 50 fixed to the lid 30 by the mounting bracket 40 and the screws 48 and 49 is sandwiched between the first bridge portion 15 and the second bridge portion 16 described above, and the position of this lower end side portion is set. Is regulated.

  The above-described connector 55 is attached to the circuit board 50 fixed to the lid 30 at the upper end side and on one surface side.

  As shown in FIGS. 1 and 3, the lid 30 has a mounting notch 31 for installing the electronic device in a predetermined place and a connector 55 attached to the circuit board 50 for projecting to the outside. A connector hole 35 is formed. As shown in FIG. 6, the lid 30 is fixedly connected to the lid mounting flange portion 17 of the main recess forming body 12 with screws 39.

  As shown in FIGS. 2, 3, and 5, the first bridge portion 15 and the second bridge portion 16 are disposed so as to face each other, and a set of the first bridge portion 15 and the second bridge portion 16 is formed. In the bottom plate 14, a plurality of circuit boards 50 are formed at locations along the storage position. As shown in FIG. 2, each of the bridge portions 15 and 16 has a trapezoidal shape. Each bridge portion 15, 16 corresponds to a trapezoidal leg side, and a pair of leg portions 15 b, 16 b inclined with respect to the bottom plate 14, and a trunk portion corresponding to the upper side of the trapezoid and parallel to the bottom plate 14. 15a, 16a.

  The main recess forming body 12 having a pair of the first side plate 13 and the bottom plate 14 is formed by pressing a single metal plate. The bridge portions 15 and 16 are formed by relative movement of the male mold 85 and the female mold 80 as shown in FIG. The male mold 85 is provided with a trapezoidal protrusion 86 corresponding to the shape of the trapezoidal bridge portions 15 and 16 as shown in FIG. A groove 81 into which the protrusion 86 is inserted is formed. In each of the bridge portions 15 and 16, a bottom plate forming portion 14 a of a metal plate that becomes the main recess forming body 12 is disposed between the male die 85 and the female die 80, and the male die 85 is changed to the female die 80. It is formed by moving in a direction relatively approaching. As shown in FIGS. 2B and 2C, the bottom plate forming portion 14a is cut on both sides of the band-like region of the bottom plate forming portion 14a in the mold moving process. The projections 86 are pushed and plastically deformed to form bridge portions 15 and 16.

  As described above, in the present embodiment, the upper end side of the circuit board 50 is connected and fixed to the lid 30 with the board mounting bracket 40 and the screws 48 and 49, while the lower end side part of the circuit board 50 is used as the board position restricting part. Since the first bridge portion 15 and the second bridge portion 16 are sandwiched, the circuit board 50 can be firmly held in the housing 10. Further, in the present embodiment, the first bridge portion 15 and the second bridge portion 16 as the substrate position restricting portion are formed by the press working in the process of forming the main recessed portion forming body 12 by the press working, thereby forming the main recessed portion. Since it is integral with the body 12, the number of parts can be reduced and the number of manufacturing steps can be reduced.

  Next, various modifications of the substrate position restricting unit described above will be described with reference to FIGS.

  First, a first modification of the substrate position restricting portion will be described with reference to FIG.

  In the above embodiment, the first bridge portion 15 and the second bridge portion 16 that are the substrate position restricting portions are arranged so as to face each other. However, in the present modification, the first bridge portion 15x and the second bridge portion 16x are arranged. Are arranged in a staggered pattern.

  Thus, even if the first bridge portion 15x and the second bridge portion 16x are arranged in a staggered manner, the first bridge portion 15x is in contact with one surface of the circuit board 50, and the second bridge portion 16x is in contact with the circuit board 50. The position of the circuit board 50 can be regulated by contacting the other surface.

  That is, in the present invention, it is not necessary for the first substrate restricting portion and the second substrate restricting portion to face each other.

  Next, a second modification of the substrate position restricting unit will be described with reference to FIG. In addition, the figure (b) is the bb sectional view taken on the line in the figure (a).

  The substrate position restricting portions 15y and 16y of this modification have a 1/4 spherical shape. The substrate position restricting portions 15y and 16y are metal plates that form the bottom plate 14, and a portion that contacts the circuit board 50 is cut with a male mold, and a semicircular region adjacent to the cut portion is made of male metal. The mold is pushed up and formed.

  As described above, the board position restricting portion does not need to have a bridge shape like the bridge portions 15 and 16 described above, and has a 1/4 spherical shape or the like as in the present modification. Also good. However, as in the bridge portions 15 and 16 described above, it is possible to increase the amount of deformation by making cuts on both sides of the belt-shaped region and plastically deforming the belt-shaped region to form the substrate position restricting portion. This is preferable because the height of the substrate position restricting portion can be formed high.

It is a perspective view of the electronic device as one embodiment concerning the present invention. It is a perspective view inside an electronic device as one embodiment concerning the present invention. FIG. 3 is a view taken along arrow III in FIG. 1. It is the IV-IV sectional view taken on the line in FIG. It is a V arrow directional view in FIG. It is a VI arrow line view (state which removed the 2nd side board) in FIG. It is explanatory drawing which shows the formation process of the bridge part in one Embodiment which concerns on this invention. It is a bottom view of the electronic device as a 1st modification of one Embodiment which concerns on this invention. The board | substrate position control part of the electronic device as a 2nd modification of one Embodiment which concerns on this invention is shown, The same figure (a) is a top view of a board | substrate position control part, The same figure (b) is the same figure (a). It is a bb line sectional view.

Explanation of symbols

10: Housing, 11: Main body, 12: Main recess forming body, 13: First side plate, 14: Bottom plate, 15, 15x: First bridge portion, 16, 16x: Second bridge portion, 15y, 16y: Substrate position Restricting part, 23: second side plate, 30: lid, 40: board mounting bracket, 29, 39, 48, 49: screw, 50: circuit board, 55: connector

Claims (4)

In a housing for an electronic device comprising a metal main body in which a storage recess for storing a circuit board is formed, and a lid for closing the opening of the storage recess,
A board fixture for connecting and fixing the circuit board to the lid so that one end of the circuit board faces a bottom plate forming the bottom of the housing recess in a state where the opening of the housing recess is closed with the lid. With
The bottom plate protrudes in a direction toward the opening of the housing recess, and includes a first substrate position restricting portion that contacts one surface of the circuit board, and a second substrate position restricting portion that contacts the other surface of the circuit board. It is formed by cutting and raising a part of the bottom plate,
A housing for electronic equipment characterized by the above. The electronic device casing according to claim 1,
The first substrate position restricting portion and the second substrate position restricting portion are both
Cuts are made on both sides of a part of the belt-like region of the bottom plate, and the belt-like region has a bridge shape protruding in a direction toward the opening of the storage recess,
A housing for electronic equipment characterized by the above. In the housing | casing for electronic devices as described in any one of Claim 1 and 2,
The portion of the first substrate position restricting portion that contacts the circuit board and the portion of the second substrate position restricting portion that contacts the circuit board face each other.
A housing for electrical equipment characterized by the above. The housing for electronic devices according to any one of claims 1 to 3,
The circuit board housed in the electronic device casing;
An electronic device comprising:

Images