JPH029468Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a switch that displays an on state or an off state.

Conventionally, in this kind of device, as shown in Fig. 1, the opening/closing device (B) is housed in a container (A), and when the opening/closing device (B) is in the off state, a neon lamp lights up to indicate the off state and the installation position of the switch. As shown in Figure 2, the switchgear B is in the ON state, that is, the load E is in the operating state, and the light emitting diode D lights up when connected to the secondary side of the current transformer to indicate the ON state and the operating state of the load E. There is. However, these devices can only display either the off state or the on state.

This invention has been improved by paying attention to the above-mentioned circumstances, and its purpose is to provide a display switch that can display the on state and off state in different colors.

An embodiment of this invention will be described below with reference to FIGS. 3 to 5. Reference numeral 1 denotes a container, which is made up of a lid 3 having a window hole 2 formed therein, a container body 5 having an electric wire insertion hole 4a and a screwdriver insertion hole 4b formed therein, combined with a metal fitting 6. 7 is a switchgear, and a fixed contact 8
It consists of a U-shaped terminal plate 9, a support portion 10, a U-shaped terminal plate 11, and an inverter 12. 13 is a locking spring, and each terminal plate 9, 1
1 and press-contact electric wires (not shown) to the terminal plates 9 and 11. Reference numeral 14 denotes a release button, which is used to remove the electric wire by deflecting the locking spring 13 with a screwdriver inserted into the screwdriver insertion hole 4b. Reference numeral 15 denotes an operating body, which forms a concave chamber 16 and a fixing cylinder 18 for a spring 17 that interlocks the inverter 12, as well as a hole 19a penetrating the concave chamber 16;
19b are arranged in a row, are pivotally supported by the lid body 3, and are exposed through the window hole 2. Reference numeral 20 denotes a board, and an off-indication circuit 23 has a limiting resistor 21 and an indicator light 22 in the form of a neon lamp connected in series as shown in FIG. One end of the limiting resistor 21 is inserted into the fixed cylinder 18 and connected in parallel with the switchgear 7 by contacting the spring 17, and the primary side of the current transformer 25 housed in the container 1 is connected to the support part 10 and the terminal. It is connected between the plates 11 and connected in series with the switchgear 7, and on the next side of this current transformer 25 is connected an indicator light 26 which is a diode of a different color from the indicator light 22 of the OFF indicator circuit 23. On display circuit 2
7 and is fitted into the concave chamber 16 of the operating body 15. In this state, the indicator lights 22 and 26 are housed in the recessed chamber 16. 28a and 28b are lids that allow light to pass through. In addition, when the switching device 7 is in the off state, the off display circuit 23 is connected to the terminal board 9 and the contact 24.
One end of the switch is connected to one end of the switching device 7 to constitute a connecting means for connecting the off display circuit 23 to the switching device 7 in parallel.

When the switchgear 7 is turned off, the off display circuit 2 is activated through the terminal plate 9, the contact 24, and the spring 17.
3, the indicator light 22 lights up, indicating the OFF state of load Z, and also displays the installation position of the switch when used for blinking indoor lighting equipment, making it easy to switch even in a dark room. can be confirmed. Furthermore, when the switchgear 7 is turned on, an indicator light 26 connected to the secondary side of the current transformer 25 lights up in a different color from the indicator light 22 to indicate the on state of the load Z. The operating state of the load Z, which cannot be confirmed visually, can also be easily confirmed. FIG. 6 shows another embodiment of this invention,
The indicator light 22 is a diode, and the indicator light 2
6 is a pair of diodes connected in opposite directions.

As described above, the present invention includes a bottom-open box-shaped operating body for switching the switching device, which is pivotally mounted on the top of the container in which the switching device and the current transformer are housed, so as to be movable as a seesaw, and the switching device is turned off. An off-indication circuit consisting of a series circuit of an indicator light and a limiting resistor connected in parallel to the switchgear and turned on by connecting one end of the operating body to one end of the switchgear during the see-saw movement of the operating body; An indicator light of a different color from the above indicator light is connected to the secondary side of the current transformer whose primary side is connected in series, and an on-indication circuit that lights the indicator light when the switchgear is on is installed on the bottom surface of the operating body. It is mounted on the attached board and housed in the operating body, and one end side of the off-indication circuit is connected by the contacts formed on the bottom surface of the board and the terminal plate of the switchgear, which contacts the contacts when the operating body seesaws. A fixing tube that constitutes a connection means connected to one end of the switchgear and that fixes the upper part of the spring that is housed in the inverter of the switchgear and that maintains the inverted state of the inverter to the operating body is attached to the bottom side of the operating body. One end of the limiting resistor, which is the other end of the off-indication circuit, is inserted into the fixed cylinder and brought into contact with the spring, and the other end of the off-indication circuit is connected to the other end of the switching device. By providing the on-display circuit and the off-display circuit with indicator lights of different colors, it is possible to clearly identify the on/off state of the load even in a dark place. Further, the contact formed on the lower surface of the substrate and the terminal plate of the switchgear with which the contact comes into contact with the see-saw movement of the operating body constitute a connection means for connecting one end of the off-indicating circuit to one end of the switchgear,
A fixing cylinder is formed on the bottom side of the operating body to fix the upper part of the spring whose lower part is stored in the inverter of the opening/closing device to maintain the inverted state of the inverter to the operating body, and the other end of the off display circuit is fixed to the operating body. One end of a certain limiting resistor is inserted into the fixed cylinder and brought into contact with the spring, and the other end of the off-indication circuit is connected to the other end of the switchgear.
There is no need for lead wires to connect the off-display circuit to both ends of the switch, and the number of lead wires that could get caught in the opening/closing mechanism of the switch and hinder operation can be minimized, making it easier to assemble the switch. This has the effect of making it easier to process the lead wires and, as a result, making assembly easier. Moreover, one end of the limiting resistor, which is the other end of the off-indication circuit, is inserted into the fixed cylinder and brought into contact with the spring, and the other end of the off-indication circuit is connected to the other end of the switchgear. Despite not using wires, the off-indication circuit can be connected to the switchgear using existing components without the need to add components to replace other lead wires, reducing the size of the device. , it is possible to prevent costs from increasing. Also, although a spring is used in place of a lead wire, the spring and limiting resistor can be connected by simply inserting the upper part of the spring, whose lower part is fixed with an inverter, into the fixed cylinder. Since there is no need for any connection work such as soldering one end of the switch, assembly of the switch will not be difficult.

[Brief explanation of the drawing]

FIGS. 1 and 2 are circuit diagrams showing a conventional example. 3 to 5 show an embodiment of this invention, in which FIG. 3 is a plan view, FIG. 4 is a sectional view, and FIG. 5 is a circuit diagram. FIG. 6 is a circuit diagram showing another embodiment. 1...Container, 7...Switching device, 9...Terminal board,
12... Inverter, 15... Operating body, 17... Spring, 18... Fixed tube, 21... Limiting resistance, 22,
26...Indicator light, 23...Off display circuit, 24...
...Contact, 25...Current transformer, 27...On display circuit.

Claims (1)

[Scope of utility model registration request] A bottom-open box-shaped operating body for switching the switching device is pivotally mounted on the upper part of a container in which the switching device and the current transformer are housed, so that the operating body can see-saw to turn the switching device into an OFF state. An off-indication circuit consisting of a series circuit of an indicator light and a limiting resistor that lights up by being connected in parallel to the switchgear by having one end connected to one end of the switchgear, and a current whose primary side is connected in series to the switchgear. An indicator light of a different color from the above-mentioned indicator light is connected to the secondary side of the transformer, and an on-display circuit that lights the indicator light when the switchgear is on is mounted on the board attached to the bottom surface of the above-mentioned operating body. A connection means that is housed in the operating body and connects one end of the off-indication circuit to one end of the switchgear using contacts formed on the lower surface of the substrate and a terminal plate of the switchgear with which the contacts come into contact as the operating body seesaws. A fixing tube is formed on the lower surface of the operating body to fix the upper part of a spring whose lower part is housed in the reversing element of the opening/closing device to maintain the inverted state of the reversing element to the operating body, and 1. A switch with an indicator, characterized in that one end of the limiting resistor, which is the other end, is inserted into a fixed cylinder and brought into contact with the spring, and the other end of an OFF indicator circuit is connected to the other end of the switching device.