JP3204069B2 - Panel instrument mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel instrument mounting apparatus for mounting a panel instrument on a panel, and more particularly to a panel instrument mounting apparatus capable of appropriately dissipating heat.

[0002]

2. Description of the Related Art Conventionally, mounting devices used for mounting a panel instrument to a control panel are disclosed in, for example, Japanese Utility Model Laid-Open Nos. 5-79435 and 5-87524. FIG. 6 shows the configuration of such an apparatus. In the figure, 1 is a panel instrument, 2 is a panel, and the panel instrument 1 is attached to the mounting hole 3. 4 is a mounting member,
It is provided on the upper surface and the lower surface of the panel instrument 1, has a screw 5, and sandwiches the panel 2 between the panel instrument 1 and the screw 5,
The panel instrument 1 is fixed to the panel 2 by tightening the screw 5 with the driver 6.

[0003]

In recent years, large panel instruments have been reduced in size, and the amount of heat generated per unit volume has tended to increase. Then, as the panel instrument is downsized, it becomes necessary to provide a heat radiating hole on the upper surface of the panel instrument 1. However, the air around the panel instrument 1 may contain a lot of dust. If a heat radiation hole is simply provided on the upper surface of the instrument 1, dust in the air enters the inside of the instrument 1 through the hole, and an electrical short circuit occurs. Causing fire and the like.
Alternatively, there is a problem that the heat radiation hole is blocked by dust, a cable, or the like, the heat radiation performance of the panel instrument 1 is reduced, and the life of the electronic component is shortened.

Accordingly, an object of the present invention is to prevent a dust from entering the inside of a panel instrument, and to mount a panel instrument capable of reliably dissipating heat without blocking a heat radiation hole with dust or a cable. It is to implement the device.

[0005]

SUMMARY OF THE INVENTION The present invention is an apparatus for mounting a panel instrument which is mounted on a panel instrument case and which mounts the panel instrument on a panel. A fixing member for pressing and fixing the panel instrument, and a cover member attached to the fixing member and covering with a space between a heat radiation hole provided on an upper surface of the case of the panel instrument. It is a feature.

In the present invention, the cover member prevents dust from entering the inside of the case from the heat radiation hole. The cover member prevents the heat radiation hole of the case from being blocked by dust, a cable, or the like. Then, the heat in the case is radiated from the space between the case and the cover member through the heat radiation holes into the air.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are configuration diagrams showing an embodiment of the present invention. 1 is an exploded view and FIG. 2 is an assembly view. In the figure, reference numeral 10 denotes a panel instrument case, in which the upper surface and the lower surface are reduced and inclined from the front surface to the rear surface, and a plurality of heat radiation holes 1 are formed on the upper surface and the lower surface.
1 are provided, and also have mounting holes 12 on the upper surface and the lower surface. Reference numeral 20 denotes a mounting device which is mounted by being hooked on the mounting hole 12 on the upper surface of the case 10 and mounting the case 10 on a panel (not shown).

FIGS. 3 to 5 are views showing the structure of the mounting device 20. FIG. 3 is a front sectional view, FIG. 4 is a top view, and FIG. 5 is a bottom view. In the figure, reference numeral 21 denotes a fixing member, which is formed in a substantially rectangular box shape, and has hook portions 21a and 21b, a female screw portion 21c, a holding portion 21d, and a driver insertion hole 21e. The bottom surface is inclined at the same angle as the case 10, and the screw 22 is pressed vertically against the panel. The hooks 21 a and 21 b are provided on the bottom surface of the fixing member 21, inserted into the mounting holes 12 provided in the case 10, and the fixing member 21 is mounted on the case 10. The female screw portion 21c is provided at the tip of the fixing member 21 and has a screw 2
2 is attached. The holding portion 21d is a female screw portion 21c.
The screw 22 is provided at the rear end thereof, and holds the screw 22 attached to the female screw portion 21c, and also prevents the screw 22 from being displaced when the screw 22 is tightened. Driver insertion hole 2
1e is provided at the rear end of the fixing member 21, and a driver (not shown) for operating the screw 22 is inserted.

Reference numeral 23 denotes a cover member which is provided so as to be connected to the fixing member 21 and covers the heat radiation hole 11 of the case 10 via a space. The support member 23 a provided on the cover member 23 has a certain space between the case 10 and the cover member 23 to support the cover member 23. Here, although not shown, a mounting device is also provided on the lower surface of the case 10. This mounting device may be configured as described above, but generally does not have the cover member 23 and
It is only a configuration.

The operation of such a device will be described below.
The panel instrument (case 1) is mounted on the panel, and the hooks 21a, 21b of the mounting device 20 are mounted on the mounting hole 1 of the case 10.
Hook on 2. Then, insert the driver into the driver insertion hole 2
1e, and tighten the screw 22. Thus, the case 10 is fixed to the panel by sandwiching the panel between the case 10 and the screws 22. That is, fixing is performed by pressing the screw 22 against the panel. Then, the heat generated by the circuit in the case 10 radiates from the heat radiation holes 11 on the upper surface of the case 10. The heat from the heat radiating holes 11 is radiated into the air from the space between the upper surface of the case 10 and the cover member 23 of the mounting device 20.

As described above, the cover member 23 of the mounting device 20 can prevent dust from entering the inside of the meter and can prevent the heat radiation hole 11 of the case 10 from being blocked by dust, a cable, or the like. In addition, heat can be reliably dissipated. In addition, the case 10 is inclined at both the upper surface and the lower surface in order to facilitate manufacture by injection molding. However, when a fixing member having no inclination at the bottom surface is attached to the case 10, the screws are perpendicular to the panel surface. In this case, the force of the screw is dispersed and the fixing force is weakened, and at the same time, a force is applied to the case, and the case may be deformed inward. This allows
The printed circuit board stored inside the case 10 becomes difficult to come off. Therefore, in the embodiment, the fixing member 21
By inclining the bottom surface of the panel, the screw 22 is perpendicular to the panel surface, so that the force of the screw 22 is not dispersed, and the case 10 can be securely stopped on the panel, and the case 10 is bent inward. There is no risk of deformation.
Even if the screw 22 cannot be vertically applied to the panel due to the processing, even if the screw 22 is not
Does not tilt to the case side, and the case 10 does not have a possibility of inward deformation.

Although the present invention has been described with reference to the configuration in which the hooks 21a and 21b are hooked into the mounting holes 12 to fix the mounting device 20 to the case 10, the present invention is not limited to this. The structure which fixes 20 to the case 10 may be sufficient. Further, although the configuration in which the support member 23a is provided on the cover member 23 is shown, it is not always necessary to provide the support member 23a. That is, in the present invention, it is sufficient that the space between the upper surface of the case 10 and the cover member 23 has a space.

[0013]

According to the present invention, the cover member of the mounting device prevents dust from entering the inside of the instrument,
The heat radiation hole of the case can be prevented from being blocked by dust, a cable, or the like, and the heat can be reliably released.

[Brief description of the drawings]

FIG. 1 is an exploded configuration diagram showing an embodiment of the present invention.

FIG. 2 is an assembly configuration diagram showing an embodiment of the present invention.

FIG. 3 is a front sectional configuration diagram of the mounting device 20;

4 is a top view of the mounting device 20. FIG.

FIG. 5 is a bottom view of the mounting device 20;

FIG. 6 is a diagram showing a configuration of a conventional panel instrument mounting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Case 11 Heat radiating hole 20 Mounting device 21 Fixing member 22 Screw 23 Cover member

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor ▲ Hama ▼ Takayuki Tada 2-9-132 Nakamachi, Musashino City, Tokyo Inside Yokogawa Electric Corporation (56) References Japanese Utility Model No. 5-87524 (JP, U ) Jpn. 63-62765 (JP, U) J. No. 35-2121 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01D 11/30 G01D 11/24

Claims (1)

(57) [Claims] 1. A panel instrument mounting device attached to a panel instrument case and attaching the panel instrument to a panel, wherein the panel instrument is attached to the panel instrument, has a screw, and presses a screw against the panel to fix the panel instrument. A mounting device for a panel instrument, comprising: a fixing member; and a cover member attached to the fixing member and having a space between a heat radiating hole provided on an upper surface of a case of the panel instrument and covering the panel instrument. .