JPH11204957A - Housing for electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing for electronic equipment, a case of which can be used for multiple purposes irrespective of the form, number and layout of mounted components that are mounted onto the case. SOLUTION: In a housing, a plural strip-shaped first stays 3 are fixed to a bottom plate member 2A of a case, and crossing the first stays 3, second stays 4 are fixed by screwing. Mounted components 5 and the likes are mounted on the second stays 4 by screwing. Even when a change happens in the number, the shape or the layout of the mounted components, it is possible to deal with the change by just changing the shape and the screwing position of the second stay 4, and it is not necessary to make any working on the case 2 to cope with the change of the layout or the likes. Therefore, the case 2 can be used as a common part member for multiple purposes.

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 constituted by various electronic components, and more particularly to a housing structure which enables multipurpose use.

[0002]

2. Description of the Related Art Electronic devices are constructed by assembling a large number of electronic components into a housing, but the number of components and the layout are not uniform. Therefore, conventionally, there have been various electronic device housings as described below. FIG. 7 shows a conventional electronic device housing 35.
In the first example, spacers 37A and 37B having screw holes formed in a case 36 are fixed by welding or the like.
A mounting component 38 such as a wiring board is screwed on the
It is fixed by. The fixing positions and heights of the spacers 37A and 37B are changed depending on the layout of the mounted components 38 and the like.

FIG. 8 shows a second example of a housing 35 for a conventional electronic device, in which a screw insertion hole 41 is formed in a case 36 and a mounting component 43 is mounted by a screw 42 inserted from the lower surface of the case 36. Has been fixed. Screw insertion hole 41
Are formed in accordance with the mounting components 43, and their numbers and positions are changed according to the layout and the number of components.

FIG. 9 shows a third example of a conventional electronic device housing 35. A screw insertion hole 41 is formed in a case 36, and a mounting component 43 is mounted by a screw 42 inserted from the lower surface of the case 36. Has been fixed. The position where the screw insertion hole 41 is formed is formed in the recess 44 by pressing or the like so that the screw head of the screw 42 does not protrude from the lower surface of the case 36. Since the screw insertion hole 41 and the concave portion 44 are formed in accordance with the mounting component 43, the number and position thereof are changed according to the layout and the number of components.

[0005]

A conventional electronic device housing 35 is provided with a spacer 37 in accordance with mounting components 38 and 43 and the like.
A and 37B are fixed, and the screw insertion hole 41 and the concave portion 44 are formed. These processes must be performed according to the shape, the number of layouts, the layout, and the like of the mounted components. Therefore, in the case of the conventional electronic device housing, the case before processing is common, but at the stage when the mounting parts are mounted and the electronic device housing 35 is obtained, the case differs from the configuration of the case 36. And the most commonly used case 3
Even 6 could not be shared. For this reason,
The case 36 must also be designed for each component layout, which increases the number of man-hours for designing, processing, and mounting. This has been a factor in increasing the cost of electronic devices of various types in small quantities.

The "unit structure for communication equipment" disclosed in Japanese Unexamined Patent Publication No. 5-183284 has a structure in which modules constituting functions are mounted on a printed wiring board in a plane, and signal connections between the modules are connected to the printed wiring board. Wearing as done above. Further, a printed wiring board is mounted in a frame type case on a fine plate, and a module requiring heat radiation thereon is mounted so as to directly contact the fin plate. According to the above configuration, it is possible to improve the mounting density of the components and to enhance the heat radiation effect, but this does not solve the problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a housing for an electronic device in which a case for mounting an electronic component can be commonly used regardless of the number or layout of the mounted electronic components. It is in.

[0008]

The above objects of the present invention are attained by the following electronic device housings. A housing for an electronic device, wherein a first stay is fixed to an inner surface of a case, a second stay is overlapped and fixed on the first stay in an intersecting state, and a mounting component is mounted on the second stay. . The first stay is fixed to the case by welding, and the second stay is fixed to the first stay by a screw protruding from the first stay.
The electronic device casing according to the above, wherein the mounting component is mounted on the stay with a screw. The electronic device housing according to the above or the above, wherein a spacer for adjusting the height of the mounted component is interposed between the second stay and the mounted component.

In the electronic device housing described above, a plurality of first stays formed in a belt shape are fixed to a case for mounting components in a predetermined direction by welding or the like, and the first stays are fixed to the first stays. In the crossed state, the second stay is fixed by screwing, and the mounted component is mounted on the second stay by screwing. Therefore, the case and the first stay may be a common member, and the shape and the screw fastening position of the second stay for directly fastening and fixing the mounted component may be changed. Further, since the mounted component is mounted on the second stay by screwing, if a spacer is interposed between the two as described above, the height of the mounted component can be easily changed. For example, a plurality of the first stays and the second stays may be provided side by side in a certain direction, or may be provided as, for example, a single body formed in a cross-girder shape.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of a housing for electronic equipment according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the configuration of a housing for an electronic device, FIG. 2 is a plan view showing the configuration of the housing, and FIG. 3 is an enlarged sectional view of a main part showing the configuration of the housing.

As shown in FIGS. 1 and 2, a housing 1 for an electronic device (hereinafter simply referred to as a housing) has a band-shaped first stay 3 fixed to a bottom plate 2A of a case 2, and each of the first stays 3 is provided. In this embodiment, one end of the belt-shaped second stay 4 is fixed to the first stay 3 with screws so as to intersect with the first stay 3, but is orthogonal to the first stay 3, and the fixed substrate 6 of the mounting component 5 is fixed to the other end with screws. ing. Case 2 is not limited to a single use, but is premised on general use for various electronic devices. As shown in FIG. 2, the entire shape of the case 2 is formed in a planar quadrilateral, the bottom plate 2A is formed in a flat plate shape, and frames 2B and 2C are formed in a part of the outer peripheral portion.

The first stay 3 is formed in a belt shape, and is fixed to the bottom plate portion 2A at important points P by welding as shown in FIG. The number of used first stays 3 and the welding position are not limited. However, in this embodiment and second and third embodiments described later, three first stays having the same structure are used.
The stay 3 is fixed at intervals W1 and W2. And
Each of the first stays 3 is orthogonal to each other, in other words, FIG.
The second stay 4 is fixed in the lateral direction to the first stay 3 fixed in the vertical direction by screwing. 1st stay 3
The screw fastening between the second stay 4 and the second stay 4 is performed at a large number of points as indicated by reference numeral A. However, since the screw fastening structure at each fixing position A is common, the fixing structure for the portion circled in FIG. Will be described.

At the screw fastening positions of the first stay 3 and the second stay 4, the screw head 7A of the screw 7 is buried in common from the bottom plate 2A to the first stay 3 as shown in the lower part of FIG. A counterbore hole 8 is formed, and a tap hole 9 is formed in the first stay 3 in communication with the counterbore hole 8. Therefore, when the screw 7 is inserted from the lower side of the bottom plate portion 2A and screwed into the tap as shown in the figure, the screw 7 becomes erected on the surface of the first stay 3 and the screw of the second stay 4 is tightened. Sometimes idling can be prevented. According to this configuration, it is not necessary to press the screw head 7A to prevent idling at the time of screw tightening (nut tightening), and the screw head 7A does not drop.

On the other hand, a screw insertion hole 11 and a tapped hole 12 are formed in the second stay 4, and a screw 13 is screwed into the tapped hole 12 from below. Therefore, the screw 13 has the shape of being erected on the second stay 4, and it is possible to prevent the screw 13 from dropping and spinning when tightening the screw. When the second stay 4 is fixed to the first stay 3, the screw 7 is inserted into the insertion hole 11, the washer 14 and the spring washer 15 are inserted, and the nut 16 is screwed. When the mounting component 5 is fixed to the second stay 4, a screw insertion hole 17 formed in the fixed substrate 6 of the mounting component 5 is inserted into the screw 13 set on the second stay 4, and the washer 18 and the spring The nut 21 is screwed into the washer 19.

The above-mentioned series of fixing operations are represented by reference numerals A and B in FIG.
Are sequentially performed at the four fixed positions of the mounting component 5 indicated by. As a result, the mounted component 5 is fixed to the first stay 3 and the bottom plate 2A integrated with the first stay 3 via the second stay 4 as shown in an enlarged manner in FIG. In FIG. 2, in this embodiment, a power supply device is applied to the mounted component 5, but a wiring board is mounted as the mounted component 25, and a communication module is mounted as the mounted component 26 in the same manner as described above. Is shown. In this embodiment, the case 2 and the first stay 3 are common components,
The second stay 4 can be freely changed depending on the shapes of the mounted components 5, 25, 26 and the layout in the case 2. As described above, the position and number of the screw holes, and further, for example, the width of the second stay 3 are changed as necessary according to the mounting components 5, 25, 26 and the layout.

In the case 1 shown in this embodiment, a first stay 3 which is a common member is fixed to a bottom plate 2A of a general-purpose case 2 by welding, and the first stay 3 is connected to the first stay 3 via a second stay 4. The mounting components 5, 25, 26 and the like are fixed with screws. The second stay 4 is appropriately changed according to the shape and layout of the mounted components 5, 25, 26 and the like. Therefore, the casing 1 can be obtained for each use mode or purpose only by using the case 2 and the first stay 3 as a common member and preparing the second stay 4 for each application.

According to the above configuration, the screw head 7A of the screw 7 does not protrude from the bottom surface of the bottom plate portion 2A, and the housing 1 can be stably fixed in a state of being in contact with a wall surface or the like. Also,
Since neither of the screws 7 and 13 runs idle, there is no need to hold down the screw heads 7A and 13A when performing the screw tightening operation, and the working efficiency can be improved. Since the case 1 can be configured by using the case 2 and the first stay 3 as a common member, the number of parts can be reduced, and the cost can be reduced together with the improvement of the work efficiency.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a plan view showing an assembling structure of the first stay 3 and the second stay 4, and FIG. 5 is a plan view showing an example of mounting components. This embodiment shows an embodiment in which a part of the second stay 4 is replaced depending on the shape and layout of a mounted component. Therefore, the first
The same members as those in the embodiment are denoted by the same reference numerals.

In the first embodiment, the second stay 4 has the same width, but in the present embodiment, the second stay 27 from the top is widened. Therefore, the screw hole 9 of the first stay 3 shown in the first embodiment is provided.
, And all the screw holes 9 are used for fixing the second stay 4 with screws. Such a partial change of the second stay 4 is determined based on the number of the mounted components 4 and the layout requirement. That is, as shown in FIG. 5, a long wiring board is mounted as the mounting component 25 using the wide second stay 27, and four communication modules are mounted as the mounting component 26 side by side. I have. Also, the mounting component 5
Is mounted so as to straddle the first stay 3 on the right side.

4 and 5, a circle A indicates a screw fixing position of the first stay 3 and the second stays 4 and 27, that is, screw tightening by the screw 7 shown in FIG.
The circle B represents the components 5, 2 mounted on the second stays 4, 27.
5 and 26 show screw fixing positions, that is, screw tightening by the screws 13 shown in FIG. And the bottom plate 2
An external connection terminal 28 and a connector 29 are fixed to one end of A as needed.

As described in the first and second embodiments, in the case 1 to which the present invention is applied, the case 2 and the first stay 3 are used as a common member, and the second stay 27 is appropriately replaced. With this, it is possible to respond to a change in the number of mounted components and a layout. Therefore, it is not necessary to process the case 2 for each application, and the number of parts and the production cost can be reduced.

In the second embodiment, two places on the left side of the mounting component 5 are fixed to the second stay 4 by screws, and one place on the upper side fixes the first stay 3 and the second stay 4. It is fixed using the screw 7 to be formed. However, since the mounting component 5 straddles the first stay 3 fixed to the right side in the vertical direction, a nut 16 screwed to the two screws 7 in a portion circled in FIG. Intervenes. Therefore, it is necessary to raise the height of the mounted component 5 to at least the height of the nut 16. In this way, the form that floats the mounted components is
The present invention is not limited to the layout described above, and may be caused by various causes.

Next, as a third embodiment of the present invention, a configuration in which a mounted component is fixed in a floating state will be described. In addition,
FIG. 6 is a cross-sectional view showing a configuration for floating the mounted components, and the same members as those in the above embodiments are denoted by the same reference numerals. In the present embodiment, the spacer 31 is inserted into the screw 13 fixed to the second stay 4, and the substrate 6 is fixed above the screw 13 with the nut 21 or the like. Spacer 31
Is appropriately selected according to the interval at which the mounted components are floated. According to this configuration, the mounted component can be fixed in a floating state at any position on the second stays 4 and 27, and the housing 1 can be used for multiple purposes.

When this floating structure is applied to the second embodiment, the spacers 3 are used for the second stays 4 and 27.
It is necessary to dispose the spacer at one position above the mounting component 5, that is, at a position to be fixed using the first stay 3. In this case, as shown by the imaginary line in FIG. 6, a spacer 31 is provided for the screw 7, and the screw 7 is replaced with a longer screw. By applying this configuration to the second embodiment, the mounted component 5 is firmly fixed at three places, and the reliability of the electronic device is improved.

[0025]

As described above, in the electronic device housing according to the present invention, the plurality of first stays formed in a belt shape are fixed to the case for mounting the mounting components in a certain direction by welding or the like. The second stay is fixed to the first stay in an intersecting state by screwing, and the mounted component is mounted on the second stay by screwing. The case and the first stay can be used in common regardless of the number and layout of the mounted components. A combined electronic device housing can be obtained.
It is possible to reduce the number of parts of the members constituting the housing for electronic equipment,
The production cost of the housing can be significantly reduced in combination with the reduction in the number of work steps. Since the mounted components are mounted on the second stay by screw tightening, the layout and mounting components can be easily handled, such as by interposing a spacer between the second stay and the mounted components. Multipurpose use of the case is facilitated.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a main part showing a first embodiment of an electronic device housing according to the present invention.

FIG. 2 is a plan view illustrating an entire configuration of a main housing of the electronic device.

FIG. 3 is an enlarged cross-sectional view of a main part showing a mounting mode of a first stay, a second stay, and a mounting component.

FIG. 4 is a plan view showing a fixed form of a case and first and second stays according to a second embodiment of the present invention.

FIG. 5 is a plan view showing a mounting form of a mounted component.

FIG. 6 is an enlarged sectional view of a main part showing a third embodiment of the present invention.

FIG. 7 is a partially cutaway side view showing a first example of a conventional electronic device housing.

FIG. 8 is a partially cutaway side view showing a second example of a conventional electronic device housing.

FIG. 9 is a partially cutaway side view showing a third example of a conventional electronic device housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic device housing 2 Case 2A Bottom plate part 3 1st stay 4 2nd stay 5, 25, 26 Mounting parts 6 Fixing plate 7, 13 Screw 16, 21 Nut 31 Spacer

Claims (3)

[Claims] 1. A first stay is fixed to an inner surface of a case, and a second stay is overlapped and fixed to the first stay in an intersecting state, and a mounting component is mounted on the second stay. Electronic equipment housing. 2. The mounting of the first stay to the case is performed by welding, and the second stay is fixed to the first stay by a screw protruding from the first stay. The electronic device housing according to claim 1, wherein the mounting of the electronic device is performed by a screw. 3. The electronic device housing according to claim 1, wherein a spacer for adjusting the height of the mounted component is interposed between the second stay and the mounted component.