JPH044389Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] This invention is a rectangular tube that is mainly used for control panels, etc., and whose status can be confirmed by display characters, colors, or a combination of both, and the flashing of two or more types of light sources. This invention relates to an indicator light device.

[Prior art and its problems]

For example, incandescent lamps and LED (light emitting diode) lamps are used as light sources for this type of indicator light device. Since LED lamps are significantly inferior in brightness to incandescent lamps, they cannot be used as a unit, so they have no meaning.As a result, they have been devised to increase brightness by arranging many LED lamps. Figures 8, 9, and 10
The lamp unit type shown in FIG. 1, FIG. 11, and FIG. 12 is known. Introduction Figure 8,
In FIG. 9, this lamp unit includes a rectangular wiring board 52 on which a large number of rectangular LED mode resins 51 are arranged, and a plug-in base fixed to the back side of the wiring board 52 and connected to each LED mode resin 51. 53, a rectangular cylindrical illumination frame body 50
It is designed to fit inside and be stored. Next, in FIGS. 10 and 11, this lamp unit includes a disk-shaped wiring board 55 on which a large number of LEDs 54 are arranged, and a screw-in type that is fixed to the back side of the wiring board 55 and connected to each LED. As in the case of FIGS. 8 and 9, the lamp 56 is configured to be fitted and housed in each cylindrical illumination frame 50. However, in the case of the lamp unit constructed in this way, as shown in FIGS. 8 and 9, in order to hold the lamp unit, a slight twist is required after inserting the cap 53 into a holder (not shown). Therefore, the dimensions of the wiring board 52 must be made smaller than the inner dimensions of the lighting framework 50, and as a result, even if the central part of the lighting framework 50 has a predetermined brightness, the surrounding area becomes dark. The drawback was that the overall brightness was insufficient. Next, the first
Regarding the examples shown in FIGS. 0 and 11, since the base 56 is of a screw type, the wiring board 55 is naturally disk-shaped, and as a result, the light does not reach the four corners of the illumination frame 50 during lighting, so it is not evenly distributed. The drawback was that it was not possible to obtain a high level of brightness, resulting in uneven light. In addition, as a means for eliminating the above-mentioned drawbacks, both of them have an illumination frame body 5, which is not shown in the drawings.
A diffuser plate is installed inside the 0 to diffuse light in order to obtain uniform brightness, but in order to obtain uniform brightness, the amount of diffusion must be increased, and if the amount of diffusion is increased, Another drawback was that the light attenuated, making the whole thing dark.

The indicator light device shown in FIG. 12 has been devised to eliminate such drawbacks. In the figure, the indicator light device is composed of an illumination frame 50, a lamp unit 70 installed in the illumination frame 50 via a reflective case 46, and a terminal block 80 for connecting a power source to the lamp unit 70. There is. The lighting frame assembly 40 includes a lighting frame 41 that is shaped like a rectangular tube and has stepped portions on both the inside and outside, a lens 43 attached to the front opening of the lighting frame 41 via a lamp cover frame 42, and a display board 44.
and a color plate 45. The lamp unit 70 has a wiring board 62 that can be inserted from the front side of the illumination frame 41 through a reflective case 46 that surrounds the LEDs 61 and has a large number of LEDs 61 arranged on the front side.
and two electrode pins 63 and 64 implanted on the back side of the wiring board 62. Terminal block 8
0 is a base 71 formed of synthetic resin so that it can be detachably connected to the rear opening of the illumination frame 41;
Three pores 71a penetrating the front and back of the base 71,
The electrode pin 6 on the back side is press-fitted into one of the pores 71a of the holes 71b and 71c from the front and back, and is in contact with each other.
A contact piece 72 made of a conductive material and a screw terminal 73 on the front side that can be slidably contacted with the electrode pin 64 on the back side that is press-fitted into the hole 71b from the front and back and in contact with each other and a contact piece 74 made of a conductive material that can be slidably contacted with the front side. connection plate 7
5, the other end 75b of the connecting plate 75 and the screw terminal 76 which are press-fitted into the small hole 71c from the front side and contact each other, and the connecting plate 75 and the small holes 71a, 71b, which are fitted into the front side of the base 71, It is comprised of a cover 77 that covers the connection part inside 71c. However, although the indicator light device with this configuration is not shown, if the light source is an incandescent lamp, it is necessary to replace it with a socket unit consisting of a holder that is held in contact with the lamp cap, a contact plate that is in contact with the soldering side electrode, etc. The fact that the socket unit side is not common for incandescent lamps and LED lamp units means that it takes a lot of time and investment to manufacture parts, and it is also troublesome in terms of parts management and handling, and it is difficult to change the light source. The drawbacks were that it could not respond quickly and was expensive.

[Purpose of invention]

The purpose of this invention is to eliminate the above-mentioned conventional drawbacks and provide an inexpensive indicator light device that can be used with both incandescent lamps and LED lamp units without causing unevenness or darkness in the case of LED lamp units. It is in.

[Key points of the idea]

The main point of this invention is to achieve the above-mentioned purpose by providing a rectangular cylindrical illumination frame with openings on both the front and back sides and a front opening on which a lens, display board, color board, etc. can be detachably attached; a support molded from synthetic resin that is removably fitted into the illumination frame through the opening on the back side; and a terminal that is fixed to the support and removably holds the base-side electrode of the incandescent lamp and is conductive to the base. a contact plate having an extended terminal; a contact plate fixed to the support with an insulating gap between the support and the terminal facing the soldering side electrode of the incandescent lamp; and a contact plate having an extended terminal; a conical coil spring made of a conductive wire having spring properties and elastically mounted between opposing side electrodes; and an electrode pin that can be inserted from the front opening of the illumination frame and can be pressed against each of the receiver and the contact plate. It is equipped with a lamp unit consisting of a wiring board on the back side and a large number of light emitting diodes arranged on the front side, making it possible to selectively use incandescent lamps and light emitting diode lamp units. The aim is to reduce costs.

[Example of idea]

Figures 1 to 5 show an embodiment of the indicator light device according to this invention, where Figure 1 is a plan view when an incandescent lamp is used, Figure 2 is a longitudinal cross-sectional view of Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
FIG. 4 is a vertical sectional view of FIG. 3, and FIG. 5 is an exploded perspective view of essential parts corresponding to the configuration of FIGS. 1 and 3. In the drawings, the same parts as in the embodiment shown in FIG. 12 described above are denoted by the same reference numerals, and the differences will be explained. This embodiment differs from the conventional device in that it utilizes a holder that holds the base of the incandescent lamp socket and conducts electricity, and a contact plate that contacts the soldering side electrode via a conical spring. The LED lamp unit is configured so that it can be turned on by the lamp, and can be replaced by simply attaching and detaching the lamp cover frame. To this end, first, the so-called full-voltage type 10 to which a circuit voltage is directly applied to the socket unit and the type 15 with a built-in step-down transformer are made to have common socket components. The full-voltage socket unit 10 has a base 1 made of synthetic resin molded as a component that can be detachably fitted and connected to the opening on the back side of the illumination frame 41.
and a contact plate 2 formed of a conductive plate material that is fitted and fixed at right angles to the lamp mounting shaft of the base 1.
and an incandescent lamp 6 which is fitted and fixed to the base 1 from the opposite direction of the contact plate 2 with an insulating gap between the contact plate 2 and the contact plate 2.
A conical cone is supported by the guide ring 1a of the base 1 and elastically mounted between the contact plate 2 and the soldering side electrode 6b of the incandescent lamp 6. shaped coil spring 4
and terminal screws 5 screwed into screw holes 2b, 3b of integrally molded terminal plates 2a, 3a, respectively, on the contact plate 2 and the receiver 3. On the other hand, the step-down transformer built-in socket unit 15 is a rectangular box-shaped synthetic resin molded case with an opening on the back side, which can be removably fitted and connected to the opening on the back side of the illumination frame 41, similar to the socket unit 10 described above. 11, a transformer (not shown) housed in the case 11, and connection conductors between the secondary terminal of the transformer and the contact plate 2 and the receiver 3, respectively, can be attached and detached through the opening of the case 11. The transformer is provided with a cover 14 made of synthetic resin, which supports the transformer and supports the terminals 12 and 13 connected to the primary terminal of the transformer. The LED lamp unit 30 has a large number of LEDs 1 on the front side.
A rectangular wiring board 21 is provided with electrodes 17 and 18 connected to each LED 16, a rectifier 19, and a resistor 20 on the back side, and a rectangular wiring board 21 that surrounds the front side of the wiring board 21 and directs the light of the LEDs 16 to the illumination frame 41. A reflection case 22 that diffuses the light evenly in the opening, and electrode pins 24 and 25 that engage with the leg pieces 22a of the reflection case 22 to support the wiring board 21 and press against the electrodes 17 and 18 via connection springs 23 are arranged as shafts. The holder 26 is movably guided and is locked to the stepped portion 41a of the illumination frame 41. Then, the holder 26
1a, the electrode pin 24 is connected to the contact plate 2.
, the electrode pin 25 is connected to the holder 3 and the connection spring 2, respectively.
The contact is made by the spring force of 3. The rectifier 19 is designed to be compatible with a full-voltage type and a built-in step-down transformer type in the case of an AC power source, and the resistor 20 is used to limit the current. Also, lighting frame 4
1, as shown in FIG. 5, by integrating a plurality of pieces using an assembly frame 7, it is possible to easily attach them to the panel surface and to reduce the occupied area.

Next, another embodiment of the indicator light device according to this invention will be described with reference to FIGS. 6 and 7. The difference between this embodiment and the embodiments shown in FIGS. 1 to 5 described above is that first, the contact plate 32 and the holder 33, which are fitted into and fixed to the base 1 constituting the socket unit 35, have terminal plates 32a and 33, respectively. 33a
In addition, there are clip contacts 32c and 33c that can be connected to and separated from the electrode pieces of the LED lamp unit 40, which will be described later.
are integrally molded, and electrode pieces 36 and 37 are implanted on the back side of the wiring board 22 of the LED lamp unit 40, and are connected to each LED 16 and can be fitted into contact with the clip contacts 32c and 33c, respectively.
The terminal plates 32a, 33a are provided with screw holes 32b, 33b into which the terminal screws 5 can be screwed. Although not shown, the same applies to a socket with a built-in step-down transformer, which eliminates the need for the contact spring 23 and holder 26 compared to the previous embodiment, reducing the number of parts. There are advantages.

In each of these embodiments, the receiver is for a plug-in type incandescent lamp, but it goes without saying that a screw-type receiver can also be used.

[Effect of idea]

According to this idea, the socket can also be used as an incandescent lamp.
By making it common and applicable to LED lamp units, the number of parts is reduced, making it easier to assemble and managing parts, making it possible to provide an indicator light device that is inexpensive and easy to handle.

[Brief explanation of the drawing]

1 to 5 are views showing one embodiment of the indicator light device according to this invention, in which FIG. 1 is a plan view when an incandescent lamp is used, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG.
The figure is a plan view when the LED lamp unit is used.
The figure is a longitudinal sectional view of Figure 3, Figure 5 is an exploded perspective view, Figures 6 and 7 are views showing other embodiments of the indicator light device according to this invention, and Figure 6 is an LED lamp unit used. FIG. 7 is an exploded perspective view of essential parts; FIGS. 8 and 9; FIGS. 10, 11, and 12 are views showing three different examples of conventional indicator light devices. , FIG. 8 is a plan view of one example, FIG. 9 is a perspective view of the main part of FIG. 8, and FIG. 10 is a plan view of two examples.
FIG. 11 is a perspective view of the main part of FIG. 10, and FIG. 12 is a longitudinal sectional view of three examples. 1... Base, 2, 32... Contact plate, 2a, 3
2a... Terminal board, 3, 33... Receiver, 3a, 33
a...Terminal board, 4...Conical coil spring, 6...
... Incandescent lamp, 6a ... Base, 6b ... Soldering side electrode, 16 ... LED, 21 ... Wiring board, 2
4, 25... Electrode pin, 30, 40... LED lamp unit, 32c, 33c... Clip contactor, 36, 37... Electrode piece.

Claims (1)

[Scope of utility model registration request] Both sides of the front back are open, and the front opening has a lens,
A rectangular cylindrical illumination frame to which a display board, a color plate, etc. can be detachably attached; a molded support made of synthetic resin that is removably fitted into the illumination frame from an opening on the back side; and the support. A receiver which is fixed to an object and removably holds an electrode on the base side of an incandescent lamp and has an extended terminal so as to be conductive, and a receiver which is fixed to the support and has an insulating gap between the receiver and the incandescent lamp is soldered. a contact plate facing the side electrode and having an extended terminal; a conical coil spring made of a conductive wire having a spring property and elastically mounted between the contact plate and the soldering side electrode; a lamp unit comprising a wiring board having electrode pins on the back side that can be inserted through the opening on the front side and can be pressed against each of the receiver and the contact plate, and a large number of light emitting diodes arranged on the front side; An indicator light device characterized by enabling selective use of an incandescent lamp and a light emitting diode lamp unit.