JPH0623026Y2 - Case device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Use of the Invention] The present invention relates to a housing device including a main body, a support for mounting and supporting the main body, or an additional chassis connectable to the main body.

[Background of the Invention] Recently, electronic device housing devices such as word processors and computer terminals are easily affected by external static electricity due to the high density of substrates housed inside, and various static electricity countermeasures have been taken. is there. In particular, it is necessary to ground when mounting the chassis device on a support base or connecting it to an additional chassis.

Conventionally, as shown in FIG. 2 and FIG. 3, in this type of chassis device, the main body 1 and the support base 2 or the main body 1 and the additional chassis 3 are connected to each other by a ground wire 4 so as to be grounded. Has become. Further, in Japanese Utility Model Publication No. 59-37852, as shown in FIG. 4, anticorrosion conductive portions 5a and 5b are formed on the main body 1 and the support base 2 so as to oppose each other, and the conductivity is further improved. It is described that the elastic means has a pressing contact with both.

However, in the former case, since the ground wire 4 is screwed, it is necessary to attach and detach with a screw every time it is attached and detached.
Further, it may be difficult to secure a sufficient electric conduction capacity only with the ground wire 4.

Since the latter has a structure in which the rust-proof conductive plates 5a and 5b are connected by spot welding, the welding trace may be rusted and sufficient electrical continuity may not be obtained, and it becomes an expensive product because another component is attached. There is a problem that it ends up.

[Object of the Invention] The object of the present invention is to enable a good electrical connection between the main body and the support base or the additional housing, and to provide a simple positioning configuration without increasing the number of parts, and to further facilitate the positioning operation. An object of the present invention is to provide a housing device that is simple and can be surely grounded.

[Summary of the Invention] The purpose of the present invention is to provide a pair of fitting holes in the rust-proof conductive plate at the bottom of the main body, and to provide a horizontal transfer plate consisting of the rust-proof conductive plate on the connection base of the expanded chassis. A fitting claw is provided at a position corresponding to the fitting hole of the delivery plate, a notch is provided at a position corresponding to the main body foot, and the fitting claw is fitted in the state where the main body foot is inserted into the cutout. It is configured so as to be electrically contact-connected to the dowel, and in this state, the weight of the main body is
This is achieved by acting to promote the contact between the fitting claw and the fitting hole.

[Embodiment of the Present Invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a housing device according to the present invention. A connection base 5 is attached to the upper part of the expanded housing 3, and a sufficient electrical conduction capacity is secured between the two. The connection base 5 is provided with a horizontal differential plate 51 made of a rust-proof conductive plate, and the horizontal differential plate 51 has a pair of cutout portions according to the positions of the fitting claw 6 and the main body foot 11 of the main body 1. 13 is formed. The notch 13 is open on one side. Further, the additional housing 3 is provided with a screw hole portion 7 for fixing the main body and a ventilation hole 8 for alleviating a temperature rise of the main body. A fitting hole 10 is formed in the bottom 9 of the main body made of an anticorrosive conductive plate.
And foot 11 is attached. Further, a fixing screw hole portion 12 corresponding to the screw hole portion 7 of the connection base 5 is provided on the rear portion of the main body, and a set screw is screwed into both the screw hole portions 7 and 12 to connect them.

The connection between the main body 1 and the additional chassis 3 is performed by the following procedure. Figure 5,
As shown in FIG. 6, when the main body 1 is slid on the additional housing 3 and the legs 11 of the main body are aligned with the notches 13 of the connection base, the fitting hole 10 at the bottom of the main body and the fitting claw 6 of the connection base are The positions match. Further, the main body foot 11 is pushed into the notch 13 by using the side of the notch 13 as a guide so that the fitting claw 6
Engages with the fitting hole 10 of the main body. This brings the bottom 9 of the main body and the connection base 5 into conduction.

When connecting the main body 1 and the extension housing 3 with the cable 14, it is necessary to consider shielding of electromagnetic noise from the signal cable 14, but in the case of the present invention, as shown in FIG. Since the cable connection is made at the lower part of the main body and at the upper part of the additional housing, it is covered by the connection base 5 connecting the main body 1 and the additional housing 3, so that a shielding effect can be obtained. Further, when connecting cables between the rear surfaces of the device, as shown in FIG. 8, after the main body 1 and the additional housing 3 are connected, the rear cover 15 can be attached. However, in the rear cover 15, at least the portion 16 that becomes the seat of the mounting screw must be a rust-proof conductive portion, but the purpose can be easily achieved by applying one side coating to a commonly used plated steel plate. .

In this way, according to the present invention, the main body 1 is placed on the additional housing 3, and the main body legs 11 are inserted into the cutout portions 13 of the lateral crossover plate 51 to accurately position the fitting hole 10 and the fitting claw 6. As a result, the electrical and mechanical connection between the two is ensured, and the handleability for connection is improved.

Further, this positioning is performed by providing a cutout portion in the lateral difference plate 51 and inserting the main body foot 11 into the cutout portion 13, so that it is not necessary to use a special component for the positioning.

Furthermore, since the main body 1 is combined so as to be placed on the additional housing 3 or the support base 2, the weight of the main body 1 acts to promote the contact between the fitting hole 10 and the fitting claw 6, The reliability of the electrical connection is maintained accordingly.

The connection with the expansion chassis 3 has been described above.
The same applies to the case of connection with, and the additional chassis may be read as a support base.

In the above example, the main body is connected to the additional housing or the support base, but the same connection can be made when the additional housing is placed on the main body or when the main body is suspended by the support base.

Also, if you fix the back of the main unit to a support stand or an additional chassis,
It acts as a protection against cable disconnection in case of careless lifting of the body.

[Effects of the Invention] As described above, according to the present invention, a pair of fitting holes are provided in the anticorrosion conductive plate at the bottom of the main body, and the horizontal base plate made of the anticorrosion conductive plate is provided in the connection base of the expanded chassis. Provided with a fitting claw at a position corresponding to the fitting hole of the horizontal crossing plate and a notch at a position corresponding to the main body foot, and inserting the main body foot into the cutout, the fitting is performed. The claw is configured to be electrically connected to the fitting hole, and in this state, the weight of the main body is configured to promote the contact between the fitting claw and the fitting hole. Alternatively, it is possible to provide a housing device that can be connected to the additional housing in a good conductive state and has a simple positioning configuration without increasing the number of parts, and that can perform a positioning operation easily and reliably perform grounding.

[Brief description of drawings]

1 (a) and 1 (b) are perspective views showing an embodiment of the present invention, FIGS. 2 to 4 are perspective views showing a schematic structure of a conventional housing device, FIG. 5 and FIG. FIG. 7 is a perspective view showing a connection state of an embodiment of the present invention, FIG. 7 is a side view of the same, and FIG. 8 is a side view showing another embodiment. 1 ... Main body, 2 ... Support base, 3 ... Additional housing, 4 ... Ground wire,
5 ... Connection base, 51 ... Lateral transfer plate, 6 ... Fitting claw, 8 ...
Ventilation hole, 10 ... Fitting hole, 11 ... Feet, 13 ... Notch, 14
… Signal cable, 15… rear cover.

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. An electronic device main body having a main body leg, an additional housing (support base) for mounting and fixing the main body, and a housing device having means for grounding the main body and the additional housing. A pair of fitting holes are provided in the conductive plate, and a horizontal differential plate made of a rust-proof conductive plate is provided in the connection base of the additional housing, and a fitting claw is placed at a position that matches the fitting hole of the horizontal differential plate. A cutout portion is provided at a position corresponding to the main body foot, and the fitting claw is electrically connected to the fitting hole when the main body foot is inserted into the cutout portion.
Furthermore, in this state, the weight of the main body is made to act so as to promote the contact between the fitting claw and the fitting hole.