JPH0426942Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose" (Industrial field of application) This invention relates to indicator lights, and more specifically, is installed on each panel such as a control panel, switchboard, monitoring panel, etc., and is used for testing or inspection of each of these panels. In particular, the present invention relates to an indicator light whose ON or OFF state can be easily checked from the back side or inside.

(Prior art) Conventional control panels, switchboards, monitoring panels, etc. are equipped with the necessary measurement, recording, protection, control, etc. parts and output terminals within the storage equipment to indicate the status of the equipment and circuits. , indicator lights are arranged and provided on the front panel surface of the storage device.

(Problems to be solved by the invention) The fifth embodiment shows an example in which an indicator light is provided on the control panel panel.
The diagram will be explained. Storage equipment 12 for control panel 10
The control unit or output terminal 16, which is made up of electrical parts such as timers, relays, fuses, and switches, is connected to a motor, relay,
It is connected to external equipment (not shown) such as a limit switch, and the opening/closing, operating, and stopping states of these equipment can be visually observed using an indicator light 22 provided on the panel 14.

However, the indicator light 22 is provided on the panel 14 and is visible from the front side or front.
Since the control section or output terminal section 16 is often provided inside or on the back side of the storage device 12, it is difficult for one person to visually inspect it during testing or inspection.

With the panel 14 of the control panel 10 in FIG. Check whether the light 22 is on or off. Therefore, depending on the product, it may be difficult for a single tester or inspector to inspect it, and the wider the panel width is, the more difficult it is to inspect it, as in the case of the collective indicator light 22 provided on the panel 14 of the control panel 10 in Fig. 6. becomes impossible.

This invention aims to eliminate the above-mentioned drawbacks, and its gist is to provide light transmission holes at required locations in the case fitted to the panel and at required locations in the base of the light bulb, or to provide these holes as necessary. This is an indicator light for a control panel, etc., characterized in that a light guide such as an optical fiber is provided in the transmission hole to guide the light from the bulb to the back side or inside of the panel.

``Configuration'' This idea was applied to the transformer type indicator light 22 of the control panel 10.
An example will be explained below. In FIGS. 1 to 3, a power supply section 26 of a molded resin or metal case 24 having a transformer 28 inside and fitting into a through hole 20 formed in a panel 14 of the storage device 12 is shown.
A light transmitting hole 24a is formed in the bottom plate of the case, and a light transmitting hole 32a is also formed in the base 32 at a location corresponding to the light transmitting hole 24a. It should also lead to the back side or inside of the

Incidentally, after screwing the light bulb 42 into the socket 34 protruding from the outside of the base plate 32, and screwing the globe 40 into the fitting ring 36 outside the socket 34, the tightening ring 38 is screwed. A terminal screw 46 is provided on the bottom plate of the case 24.

"Embodiment Section" A case will be described in which the light from the light bulb 42 cannot be guided directly from the light transmission hole 32a of the base 32 to the back side of the panel 14 due to the structure as shown in FIG. A light transmission hole 32a is formed in the base 32 from the direction of the light bulb 42 toward the outside of the back side of the panel 14, and a light transmission hole 24a is also formed in the side surface of the case 24 at a location corresponding to the light transmission hole 32a. A light guide 44 such as an optical fiber is passed through the transmission holes 32a and 24a to guide the light from the light bulb 42 to the back side 18 of the panel 14.

"Function and Effect" As mentioned above, in FIG. 1, the light from the light bulb 42 is guided to the back side 18 of the case 44 from the light transmission hole 32a of the base 32 and the light transmission hole 24a of the case 24,
In the case of the embodiment shown in FIG. 4, the optical fiber 44
The light from the light bulb 42 is guided to the back side of the case 24 through.

Therefore, the tester or inspector does not need a third party to check the status of the indicator light 22 on the front side of the panel 14, and even one person can easily test or inspect the control panel 10.

In this embodiment, the control panel 10 was explained, but
Of course, it can also be applied to power distribution boards, monitoring boards, etc., and similar effects can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a partially vertical side view of an indicator light fitted to a control panel according to this invention, Fig. 2 is a rear view and schematic perspective view of the power supply section of Fig. 1, and Fig. 3 is a schematic perspective view of the power supply section shown in Fig. 1. 4 is a partially longitudinal side view of the indicator light according to the embodiment section, FIG. 5 is a perspective view of the control panel with the panel opened, and FIG. 6 is a perspective view of the collective indicator light. be. 10...control panel, 12...storage equipment, 14...
Panel, 20... Through hole, 22... Indicator light, 24...
...Case, 24a...Light transmission hole, 32...Base,
32a...light transmission hole, 44...light guide.

Claims (1)

[Scope of claim for utility model registration] (1) Light transmission holes are provided at required locations in the case fitted to the panel and at required locations in the base of the light bulb, so that the light from the light bulb is guided to the back side of the panel. Indicator lights for control panels, etc., which are characterized by: (2) Claim (1) of the utility model registration claim is characterized in that a light guide such as an optical fiber is provided in these light transmission holes to guide the light from the light bulb to the back side of the panel. Indicator lights on control panels, etc.