Indicator lights and control panels with control circuits

Abstract

To provide an indicator light with a control circuit that effectively utilizes the space within the control panel and ensures secure mounting to the control panel. [Solution] An indicator light with a control circuit, for use in a control panel having a control surface, comprising: an indicator light with an illuminated portion that illuminates the front side of the control surface and a main body portion with a male threaded portion formed on its outer surface that is positioned on the back side of the control surface; a tightening nut with a female threaded portion formed on its inner surface for fixing the indicator light to the control surface by passing the main body portion through a hole formed in the control surface; a mounting member having a support portion for supporting the control circuit unit, sandwiched between the control surface and the tightening nut, and fastened together with the illuminated portion and the control surface by connecting the female threaded portion to the male threaded portion; and the control circuit unit fixed to the mounting member at the support portion.

Description

Technical Field

[0001] The present disclosure relates to an indicator lamp with a control circuit and a control panel.

Background Art

[0002] In order to cause a failure indicator lamp on a control panel to flicker, an alarm circuit (annunciator circuit, hereinafter referred to as an ANN circuit) is separately installed or an ANN circuit integrated indicator lamp is used. In normal cases, an ANN circuit is separately installed. However, when using an ANN circuit, the installation space for the same number of ANN relays as the indicator lamps and complicated wiring work are required. Therefore, when the number of ANN circuits is large, the panel size may need to be enlarged or a separate panel may need to be added.

[0003] Thus, when there are reasons such as severe restrictions on the space inside the control panel and difficulty in securing space for installing the ANN circuit, an ANN circuit integrated indicator lamp may be used. When using an ANN circuit integrated indicator lamp, a set of multiple indicator lamps (manufactured in a specified quantity of vertical × horizontal) are made-to-order products. Although the problems of installation space and wiring work are solved, it is expensive, and it is difficult to change the specifications of the set after ordering, and another problem occurs in that auxiliary metal fittings for supporting a large outer shape and weight are required.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] Patent Document 1 shows an alarm display device in which an ANN circuit board is integrated into the rear of an indicator light made of LEDs. The ANN circuit described in this document is made relatively small using an IC, but if mass production that would justify using an IC is not planned, it is necessary to construct the ANN circuit using a general-purpose electromagnetic relay. In this case, the volume of the control circuit becomes large, and in addition to the rear of the indicator light having a considerably protruding shape, it becomes a considerably heavy object, raising concerns in terms of vibration and shock resistance. In particular, when attaching it to a movable part such as a door surface, special consideration is needed, such as designing a separate auxiliary bracket and reinforcing it to ensure secure fixing. [Overview of the project] [Problems that the invention aims to solve]

[0006] This disclosure is made to solve the above-mentioned problems, and aims to provide an indicator light with a control circuit that effectively utilizes the space in the control panel by integrally arranging the control circuit for controlling the indicator light on the rear of the indicator light, and that can be securely attached to the control panel without the use of auxiliary fittings. [Means for solving the problem]

[0007] The indicator light with a control circuit according to this disclosure is an indicator light with a control circuit integrated with an indicator light unit for use in a control panel having a panel surface, comprising: an indicator light in which the illuminating part is located on the front side of the panel surface and a main body part with a male screw portion formed on its outer surface is located on the back side of the panel surface; a tightening nut with a female screw portion formed on its inner surface for fixing the indicator light to the panel surface by passing the main body part through a hole formed in the panel surface; a mounting member having a support portion for supporting the control circuit unit, sandwiched between the panel surface and the tightening nut, and fastened together with the illuminating part and the panel surface by connecting the female screw portion to the male screw portion; and a control circuit unit fixed to the mounting member at the support portion. [Effects of the Invention]

[0008] The indicator light with control circuit of this disclosure has a mounting member in which a support portion for supporting the control circuit unit is formed, which is sandwiched between the illuminating portion and the tightening nut and fastened together with the panel surface of the control panel. As a result, the indicator light, the control circuit unit, and the panel surface of the control panel are integrated, increasing mechanical rigidity, and even when vibration or shock is applied, the range of vertical and horizontal swing can be suppressed as much as possible, so that it can be securely mounted to the control panel without the use of auxiliary fittings. [Brief explanation of the drawing]

[0009] [Figure 1] This figure shows the external dimensions of an indicator light with a control circuit according to Embodiment 1. [Figure 2] This figure shows how the indicator light with a control circuit according to Embodiment 1 is mounted on the panel surface of a control panel. [Figure 3] This diagram shows the indicator lights with control circuits according to Embodiment 1 arranged horizontally on the panel surface of a control panel. [Figure 4] This is a view of the indicator light with control circuit according to Embodiment 1, as seen from the rear. [Figure 5] This diagram shows the internal and external wiring of the indicator light 1 with control circuit according to Embodiment 1. [Figure 6] This figure shows the control circuit unit according to Embodiment 1 mounted on a DIN rail. [Figure 7] This figure shows how the indicator light with a control circuit according to Embodiment 2 is mounted on the control panel surface and the internal state of the control circuit unit. [Figure 8] This diagram shows the indicator light with a control circuit according to Embodiment 3 mounted on the control panel surface, along with a view of the indicator light with a control circuit from the side, and the internal state of the control circuit unit. [Figure 9] This figure shows how the indicator light with a control circuit according to Embodiment 4 is mounted on the control panel surface and the internal state of the control circuit unit. [Modes for carrying out the invention]

[0010] Hereinafter, preferred embodiments of the indicator light with control circuit according to this disclosure will be described with reference to the drawings. The same parts and corresponding components will be denoted by the same reference numerals, and their detailed descriptions will be omitted.

[0011] Embodiment 1. Figure 1 shows the external shape of the indicator light 1 with a control circuit according to this embodiment. This indicator light 1 with a control circuit has a structure in which the indicator light 2 and the control circuit unit 3 are integrated by a mounting member 4. The indicator light 2 has an illuminated section 5 on the front side that is illuminated by an LED lamp or the like with a color corresponding to various indicators. A typical example of the control circuit unit 3 is an ANN circuit for controlling the lighting of the indicator light 2, such as by causing it to flicker, but it is not necessarily limited to an ANN circuit and may be any other type of control circuit.

[0012] Figure 2 shows how the indicator light 1 with a control circuit according to this embodiment is mounted on the panel surface of a control panel. The indicator light 2 has a main body 6 on the back side of the illuminating part 5 that houses a light source such as an LED lamp and various circuits for supplying power to this light source. The main body 6 of the indicator light 2 is positioned by passing through a hole 8 provided in the panel surface 7 of the control panel. The main body 6 has a cylindrical shape, and a male threaded portion 9 is formed on the outer surface of the main body 6. On the other hand, a female threaded portion 11 is formed on the inner surface of the tightening nut 10, and the indicator light 2 is fixed to the panel surface 7 by connecting the male threaded portion 9 of the main body 6 and the female threaded portion 11 of the tightening nut 10.

[0013] As described above, the indicator light 2 and the control circuit unit 3 are integrated by a mounting member 4. In this embodiment, the mounting member 4 consists of two members, a mounting base 12 and an adapter 13, but it may be a single member or composed of more parts. The adapter 13 that constitutes the mounting member 4 has a support portion 14 for supporting the control circuit unit 3, and the control circuit unit 3 is fixed to the adapter 13 at this support portion 14. The mounting base 12 is sandwiched between the panel surface 7 and the tightening nut 10 and is fastened together with the illuminating part 5 and the panel surface 7. As a result, the indicator light 2, the control circuit unit 3 and the panel surface 7 are integrated, increasing their mechanical rigidity.

[0014] Figure 3 shows the indicator lights 1 with control circuits according to this embodiment arranged side by side. In this embodiment, the mounting member 4 (mounting base 12 and adapter 13), tightening nut 10, and control circuit unit 3 are smaller than the size of the illuminated part 5 when viewed from a direction perpendicular to the panel surface 7. The layout of the indicator lights 2 on the panel surface 7 is often planned according to the size of the illuminated part 5, but in this embodiment, the size of the parts arranged on the back side of the illuminated part 5 is all smaller than the size of the illuminated part 5. Therefore, even if the layout is planned based on the size of the illuminated part 5, there is no problem of being unable to arrange the various parts on the back side due to interference, and the arrangement density of indicator lights with control circuits can be increased.

[0015] Another reason why the control circuit unit 3 can be miniaturized is that the control circuit that makes up this unit uses semiconductor relays instead of electromagnetic relays. In addition to the advantage of miniaturizing the control circuit unit 3 by using semiconductor relays, semiconductor relays do not use mechanical contacts like electromagnetic relays, so even if the indicator light 1 with the control circuit is installed on a moving part such as the door of a control panel, there is no need to worry about malfunction due to vibration.

[0016] FIG. 4 is a view seen from the back side when the indicating lights 1 with control circuits according to the present embodiment are arranged horizontally. The control circuit unit 3 includes a control connector 15 for inputting and outputting control signals related to a power source, a switch, a timer, etc. Further, it also has a buzzer terminal block 16 for connecting wiring for sounding a buzzer (not shown). The control connectors 15 of adjacent control circuit units 3 are connected by a cable with connectors 17.

[0017] FIG. 5 is a view showing the internal and external wiring of the indicating light 1 with a control circuit. Inside the control circuit unit 3, a circuit board 18 is arranged. Control signals related to a power source, a switch, a timer, etc. from the control panel are input to this circuit board 18, and signals are output toward the indicating light 2 and a buzzer (not shown). Also in this figure, it is shown that between adjacent control circuit units 3 are connected by a cable with connectors 17 connected to the control connector 15.

[0018] FIG. 6 shows, for reference, the mounting method in the control panel when the control circuit unit 3 is arranged alone in the control panel. What is shown in this figure is the control circuit unit 3 attached to a DIN (German Industrial Standard) rail 19. In order to be attachable to the DIN rail 19, the control circuit unit 3 is fixed to a DIN rail adapter 20 and this is attached to the DIN rail 19. Even in such a case of use, since this control circuit unit 3 is configured using a semiconductor relay and has a compact shape, not much installation space is required in the control panel and efficient arrangement is possible. Also, by performing wiring using the cable with connectors 17, the wiring work can be carried out efficiently.

[0019] As described above, the indicator light with control circuit 1 according to this embodiment is an indicator light with control circuit 1 for use in a control panel having a panel surface 7, in which an indicator light 2 and a control circuit unit 3 are integrated, comprising: an indicator light 2 in which an illuminating part 5 is positioned on the front side of the panel surface 7 and a main body 6 with a male screw portion 9 formed on its outer surface is positioned on the back side of the panel surface 7; a tightening nut 10 with a female screw portion 11 formed on its inner surface for fixing the indicator light 2 to the panel surface 7 by passing the main body 6 through a hole 8 formed in the panel surface 7; a mounting member 4 in which a support portion 14 for supporting the control circuit unit 3 is formed, is sandwiched between the panel surface 7 and the tightening nut 10, and fastens together with the illuminating part 5 and the panel surface 7 by connecting the female screw portion 11 to the male screw portion 9; and a control circuit unit 3 fixed to the mounting member 4 at the support portion 14.

[0020] According to the above-described indicator light with control circuit, the mounting member 4, which has a support portion 14 for supporting the control circuit unit 3, is sandwiched between the illuminating portion 5 and the tightening nut 10 and fastened together with the control panel surface 7. As a result, the indicator light 2, the control circuit unit 3, and the control panel surface 7 are integrated, increasing mechanical rigidity. This minimizes vertical and horizontal vibrations even when subjected to vibration or shock, ensuring secure mounting to the control panel without the need for auxiliary fittings.

[0021] Furthermore, in the indicator light with control circuit 1 according to this embodiment, the control circuit of the control circuit unit 3 is composed of a semiconductor relay, which allows for miniaturization compared to the case where the control circuit is composed of an electromagnetic relay, thus reducing the installation space. Also, when the control circuit is composed of an electromagnetic relay, there is a concern that it may malfunction due to vibration if there are moving parts, such as if the panel surface 7 has a door structure, but semiconductor relays do not use mechanical contacts, so they have the advantage of being less likely to malfunction even when mounted on a panel surface where vibration occurs.

[0022] Furthermore, in the indicator light with control circuit 1 according to this embodiment, the mounting member 4 is characterized by having an adapter 13 for positioning the control circuit unit 3 on the rear side of the main body 6. As a result, the indicator light 2, mounting member 4, and control circuit unit 3 can be arranged in a line in a direction perpendicular to the panel surface, so that the dead space on the back of the indicator light can be effectively utilized, and the arrangement density of the indicator light with control circuit 1 can be increased when viewed from a direction perpendicular to the panel surface 7, thereby making effective use of the panel surface.

[0023] Furthermore, in the indicator light with control circuit 1 according to this embodiment, the mounting member 4, tightening nut 10, and control circuit unit 3 are smaller than the size of the illuminated part 5 when viewed from a direction perpendicular to the panel surface. When arranging indicator lights 2 in a control panel, the spacing between adjacent indicator lights 2 is generally determined according to the size of the illuminated part 5 of the indicator light 2. Therefore, even when adding an indicator light with control circuit 1 to a control panel, the mounting member 4, tightening nut 10, and control circuit unit 3, which are arranged behind the indicator light, are smaller than the size of the illuminated part 5, so there is no interference with adjacent indicator lights with control circuit 1 that would prevent them from being placed. Therefore, additional indicator lights with control circuit 1 can be easily installed without modifying the structure and mounting method of conventional products.

[0024] In the control panel equipped with multiple control circuit indicator lights 1 according to this embodiment, a connector cable 17 is provided to transmit control signals to the control circuit indicator lights 1, and by using the control circuit indicator lights 1 according to this embodiment, the space inside the control panel can be used effectively, and by using the connector cable 17 for wiring between the control circuit indicator lights, the effect of reducing wiring work can also be expected.

[0025] Embodiment 2. Figure 7 is a diagram relating to the indicator light 1a with a control circuit according to Embodiment 2. Figure 7A shows how the indicator light 1a with a control circuit is mounted on the control panel surface 7, and Figure 7B shows the internal state of the control circuit unit 3a. In this embodiment, the circuit case housing the adapter 13 shown in Figure 2 and the circuit board 18 of the control circuit unit 3 is integrated to form an elongated circuit case 21. Therefore, in this embodiment, the mounting member 4 shown in Embodiment 1 consists only of the mounting seat 12.

[0026] In the indicator light with control circuit 1a according to this embodiment, the mounting seat 12, which has a support portion 14 for supporting the control circuit unit 3a, is sandwiched between the illuminating portion 5 and the tightening nut 10 and fastened together with the control panel surface 7. As a result, the indicator light 2, the control circuit unit 3a, and the control panel surface 7 are integrated to increase mechanical rigidity, and even when vibration or shock is applied, the range of vertical and horizontal movement can be suppressed as much as possible, so that it can be securely mounted to the control panel without the use of auxiliary fittings. Furthermore, in the case of the indicator light with control circuit 1a according to this embodiment, the adapter 13 and the circuit case of the control circuit unit 3 in Embodiment 1 are integrated to form an elongated circuit case 21, which reduces the number of parts and has the advantage of reducing assembly work time.

[0027] Furthermore, in the indicator light with control circuit 1a according to this embodiment, the mounting base 12, tightening nut 10, and control circuit unit 3a are smaller than the size of the illuminated part 5 when viewed from a direction perpendicular to the panel surface. Therefore, even when adding an indicator light with control circuit 1a to a control panel, the mounting base 12, tightening nut 10, and control circuit unit 3a, which are located on the back of the indicator light 2, are smaller than the size of the illuminated part 5, so there is no interference with adjacent indicator lights with control circuit 1a that would prevent placement. Therefore, additional indicator lights with control circuit 1a can be easily installed without modifying the structure and mounting method of conventional products.

[0028] Embodiment 3. Figure 8 is a drawing relating to an indicator light 1b with a control circuit according to Embodiment 3. Figure 8A shows how the indicator light 1b with a control circuit is mounted on the control panel surface 7, and Figure 8B is a side view of the indicator light 1b with a control circuit, along with the internal structure of the control circuit unit 3b. In the indicator light 1b with a control circuit according to this embodiment, a support portion 14a for supporting the control circuit unit 3b is formed on the rear side of the main body portion 6 of the indicator light 2, and the control circuit unit 3b can be attached to the main body portion 6 of the indicator light 2 at this support portion 14a using bolts 22.

[0029] In the control circuit-equipped indicator light 1b according to this embodiment, the indicator light 2, control circuit unit 3b, and control panel surface 7 are fastened together using a tightening nut 10, thereby integrating the indicator light 2, control circuit unit 3b, and control panel surface 7, increasing mechanical rigidity. This minimizes vertical and horizontal vibrations even when subjected to impact, ensuring secure mounting to the control panel without the need for auxiliary fittings. Furthermore, while the control circuit unit 3 and control circuit unit 3a were mounted via mounting member 4 or mounting base 12 in embodiments 1 and 2, the mounting member 4 and mounting base 12 are unnecessary in this embodiment, further reducing the number of parts and enabling a further reduction in assembly man-hours.

[0030] Furthermore, in the indicator light with control circuit 1b according to this embodiment, the tightening nut 10 and the control circuit unit 3b are smaller than the size of the illuminated part 5 when viewed from a direction perpendicular to the panel surface. Therefore, even when adding an indicator light with control circuit 1b to a control panel, the size of the tightening nut 10 and the control circuit unit 3b, which are located on the back side of the indicator light 2, is smaller than the size of the illuminated part 5, so there is no interference with adjacent indicator lights with control circuit 1b that would prevent placement. Therefore, additional indicator lights with control circuit 1b can be easily installed without modifying the structure and mounting method of conventional products.

[0031] Embodiment 4. Figure 9 is a diagram relating to an indicator light 1c with a control circuit according to Embodiment 4. Figure 9A shows how the indicator light 1c with a control circuit is mounted on the control panel surface 7, and Figure 9B shows the internal state of the control circuit unit 3c. The circuit case 21a of the control circuit unit 3c according to this embodiment is integrated with the adapter 13, just like the one according to Embodiment 2, and has an elongated shape. In addition, a female screw portion 11a is formed on the inner surface of the front side close to the panel surface 7, and this female screw portion 11a is connected to a male screw portion 9 formed on the outer circumferential surface of the main body 6 of the indicator light 2.

[0032] In the indicator light with control circuit 1c according to this embodiment, the female threaded portion 11a of the circuit case 21a and the male threaded portion 9 formed on the outer circumference of the main body portion 6 of the indicator light 2 are connected, and the illuminating portion 5, the panel surface 7 and the control circuit unit 3c are fastened together, thereby integrating the indicator light 2, the control circuit unit 3c and the panel surface 7 of the control panel and increasing mechanical rigidity. As a result, even when vibration or shock is applied, the range of vertical and horizontal movement can be suppressed as much as possible, so that mounting to the control panel can be reliably performed without the use of auxiliary fittings. Furthermore, compared to the indicator light with control circuit 1b according to Embodiment 3, even the tightening nut 10 is unnecessary, and the main components can be made into an extremely simple configuration consisting of the indicator light 2 and the control circuit unit 3c. This further reduces the number of parts and enables a further reduction in assembly work time.

[0033] Furthermore, in the indicator light with control circuit 1c according to this embodiment, the control circuit unit 3c is smaller than the size of the illuminated section 5 when viewed from a direction perpendicular to the panel surface. Therefore, even when adding an indicator light with control circuit 1c to a control panel, the control circuit unit 3c, which is located behind the indicator light, is smaller than the size of the illuminated section 5, so there is no interference with adjacent indicator lights with control circuit 1c that would prevent placement. Thus, additional indicator lights with control circuit 1c can be easily installed without modifying the structure and mounting method of conventional products.

[0034] While this disclosure describes various exemplary embodiments and examples, the various features, aspects, and functions described in one or more embodiments are not limited to the application of a particular embodiment, but are applicable individually or in various combinations to the embodiments. Accordingly, countless variations not illustrated are conceivable within the scope of the art disclosed in this specification. These include, for example, modifying, adding or omitting at least one component, or even extracting at least one component and combining it with components of other embodiments.

[0035] The various aspects of this disclosure are summarized below as an appendix.

[0036] (Note 1) An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating part that illuminates on the front side of the panel and a main body with a male screw portion formed on its outer surface that is positioned on the back side of the panel, A tightening nut having a female threaded portion formed on its inner surface is used to fix the indicator light to the panel surface by passing the main body portion through a hole formed in the panel surface, A mounting member is formed which a support portion is provided for supporting the control circuit unit, is sandwiched between the plate surface and the fastening nut, and fastens together with the illuminating portion and the plate surface by connecting the female thread portion to the male thread portion, An indicator light with a control circuit, comprising the control circuit unit fixed to the mounting member in the support portion. (Note 2) An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating portion that illuminates on the front side of the panel, and a main body portion that has a male screw portion formed on its outer surface and a support portion for supporting the control circuit unit formed on its back side, which is arranged on the back side of the panel. A tightening nut is provided for fastening the indicator light to the panel by passing the main body through a hole formed in the panel surface, and having a female threaded portion formed on its inner surface, which is connected to the male threaded portion, thereby fastening the illuminating portion and the panel surface together. An indicator light with a control circuit, comprising the control circuit unit fixed to the main body at the support portion. (Note 3) An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating part that illuminates on the front side of the panel and a main body with a male screw portion formed on its outer surface that is positioned on the back side of the panel, An indicator light with a control circuit, comprising a circuit case having a female screw portion formed on the inner surface of the front side, and a control circuit unit which is fastened together with the illuminating part and the panel surface by connecting the female screw portion to the male screw portion. (Note 4) The indicator light with a control circuit according to any one of the appendices 1 to 3, characterized in that the control circuit unit has a control circuit composed of semiconductor relays. (Note 5) The indicator light with circuitry according to Appendix 1, characterized in that the mounting member has an adapter for positioning the control circuit unit on the rear side of the main body. (Note 6) The indicator light with a control circuit according to Appendix 1 or 5, characterized in that the mounting member, the tightening nut, and the control circuit unit are smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface. (Note 7) The indicator light with a control circuit as described in Appendix 2, characterized in that the tightening nut and the control circuit unit are smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface. (Note 8) The indicator light with a control circuit as described in Appendix 3, characterized in that the control circuit unit is smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface. (Note 9) An indicator light with a control circuit as described in any one of the appendices 1 to 8, A control panel comprising a cable with a connector for wiring between indicator lights equipped with a control circuit in order to transmit control signals to the indicator lights equipped with a control circuit. [Explanation of Symbols]

[0037] 1, 1a, 1b, 1c: Indicator light with control circuit, 2: Indicator light, 3, 3a, 3b, 3c: Control circuit unit, 4: Mounting component, 5: Illuminated part, 6: Main body, 7: Panel, 8: Hole, 9: Male thread, 10: Tightening nut, 11, 11a: Female thread, 12: Mounting base, 13: Adapter, 14, 14a: Support part, 15: Control connector, 16: Terminal block for buzzer, 17: Cable with connector, 18: Circuit board, 19: DIN rail, 20: DIN rail adapter, 21, 21a: Circuit case, 22: Bolt

Claims

1. An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating part that illuminates on the front side of the panel and a main body with a male screw portion formed on its outer surface that is positioned on the back side of the panel, A tightening nut having a female threaded portion formed on its inner surface is used to fix the indicator light to the panel surface by passing the main body portion through a hole formed in the panel surface, A mounting member is formed which a support portion is provided for supporting the control circuit unit, is sandwiched between the plate surface and the tightening nut, and is fastened together with the illuminating portion and the plate surface by connecting the female thread portion to the male thread portion, An indicator light with a control circuit, comprising the control circuit unit fixed to the mounting member in the support portion.

2. An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating portion that illuminates on the front side of the panel, and a main body portion that has a male screw portion formed on its outer surface and a support portion for supporting the control circuit unit formed on its back side, which is arranged on the back side of the panel. A tightening nut is provided for fastening the indicator light to the panel by passing the main body through a hole formed in the panel surface, and having a female threaded portion formed on its inner surface, which is connected to the male threaded portion, thereby fastening the illuminating portion and the panel surface together. An indicator light with a control circuit, comprising the control circuit unit fixed to the main body at the support portion.

3. An indicator light with a control circuit, which integrates an indicator light and a control circuit unit, for use in a control panel having a panel surface, The indicator light has an illuminating part that illuminates on the front side of the panel and a main body with a male screw portion formed on its outer surface that is positioned on the back side of the panel, An indicator light with a control circuit, comprising a circuit case having a female screw portion formed on the inner surface of the front side, and a control circuit unit which is fastened together with the illuminating part and the panel surface by connecting the female screw portion to the male screw portion.

4. The indicator light with a control circuit according to any one of claims 1 to 3, characterized in that the control circuit unit has a control circuit composed of semiconductor relays.

5. The indicator light with a control circuit according to claim 1, characterized in that the mounting member has an adapter for positioning the control circuit unit on the rear side of the main body.

6. The indicator light with a control circuit according to claim 1, characterized in that the mounting member, the tightening nut, and the control circuit unit are smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface.

7. The indicator light with a control circuit according to claim 2, characterized in that the tightening nut and the control circuit unit are smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface.

8. The indicator light with a control circuit according to claim 3, characterized in that the control circuit unit is smaller than the size of the illuminated portion when viewed from a direction perpendicular to the panel surface.

9. An indicator light with a control circuit according to any one of the multiple claims 1 to 3, A control panel comprising a cable with a connector for wiring between indicator lights equipped with a control circuit, for transmitting control signals to the indicator lights equipped with a control circuit.

Images