JPH06111664A - Switch with indicator lamp - Google Patents

Abstract

PURPOSE:To prevent the discontinuity of the wiring on the secondary side and simply and surely connect a lead terminal on the primary side to a terminal board by simply connecting and assembling the terminal board and a light emitting element fitting block to a current detecting element for automating the assembly work. CONSTITUTION:A lead terminal 20 on the primary side of a current detecting element A fitted in a body 1 and a lead terminal 21 on the secondary side are extracted vertically upward into a pin shape. A nearly U-shaped reception section 45 is provided at a junction between terminal boards 7, 8 of an AC circuit and the current detecting element A, the lead terminal 20 on the primary side is inserted into the nearly U-shaped reception section 45, and the reception section 45 is caulked. A light emitting element fitting block 25 provided with a light emitting element 29 serving as an indicator lamp is mounted on the body 1 on the current detecting element A, and the lead terminal 21 on the secondary side is inserted and connected to the light emitting element fitting block 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch with an indicator light, which is used in an AC circuit and has an indicator light which is turned on when energized.

[0002]

2. Description of the Related Art Conventionally, as a switch with an indicator lamp of this type, for example, the applicant of the present invention has previously filed as Japanese Patent Application No. 63-264748. The current transformer detects an energized state and blinks an indicator light such as a light emitting diode connected to the secondary winding of the current transformer. In this indicator light switch, the flexible lead wire on the primary side derived from the current transformer is led to the terminal plate and connected by soldering, and the flexible lead wire on the secondary side derived from the current transformer is connected. The wire is guided to the printed circuit board and connected by soldering, the printed circuit board is mounted on the lower surface of the handle for switching contacts, and the light emitting element mounted on the printed circuit board is exposed from the upper surface of the handle.

[0003]

By the way, in the above-mentioned conventional example, the flexible lead wire must be guided to a predetermined position for soldering connection, and the printed circuit board must be attached to the handle. However, there is a problem that automatic assembly is difficult, and there is a problem that the lead wire on the secondary side moves with the handle because the printed circuit board is fixed to the handle, which may cause disconnection.

The present invention has been made in view of the above problems, and an object of the present invention is to automatically connect a terminal plate or a light emitting element mounting block to a current detecting element and to assemble it. (EN) It is possible to provide a switch with an indicator lamp that can be assembled and that is free from the risk of disconnection of the wiring on the secondary side and that can easily and surely connect the lead terminal on the primary side and the terminal plate.

[0005]

In order to achieve the above object, a switch with an indicator lamp according to the present invention has a structure in which a lead terminal on the primary side and a lead terminal on the secondary side of a current detecting element incorporated in a body is formed into a pin shape and is upwardly moved. To the current detection element of the terminal plate of the AC circuit, and to insert the primary side lead terminal into the substantially U-shaped receiving portion and crimp the receiving portion. A light emitting element mounting block having a light emitting element to be an indicator lamp is mounted on the body on the current detecting element, and the secondary side lead terminal is inserted and connected to the light emitting element mounting block.

[0006]

According to the above construction, when the terminal plate and the light emitting element mounting block are assembled from the top of the body with the current detecting element incorporated in the body, the lead terminal and the terminal plate and the light emitting element mounting block which are vertically drawn out upward. The lead terminals can be assembled by inserting and connecting the lead terminals in correspondence with the joining positions of, and the lead terminals can be easily connected to be automatically assembled. Further, since the light emitting element mounting block is mounted on the body, the lead terminal on the secondary side does not move together with the handle as in the conventional case, and there is no fear of disconnection. Further, a substantially U-shaped receiving portion is provided at a joint portion of the terminal plate with the current detecting element, and the lead terminal on the primary side of the current detecting element is inserted into the substantially U-shaped receiving portion, so that the lead terminal is substantially U-shaped. By inserting the lead terminal into the letter-shaped receiving portion, it becomes easier to insert the lead terminal, and by crimping the receiving portion, the lead terminal and the receiving portion can be reliably connected.

[0007]

The present invention will be described in detail below with reference to the embodiments shown in FIGS. A current detecting element housing recess 2 and terminal plate housing recesses 3, 4, 5 are provided in a body 1 made of resin. A contact terminal plate 6 is stored in the terminal plate storage recess 3, a terminal plate 7 is stored in the terminal plate storage recess 4, and a terminal plate 8 is stored in the terminal plate storage recess 5. A lock spring 9 is internally provided in the contact terminal plate 6, and the contact terminal plate 6 and the lock spring 9 constitute a quick-connect terminal so that the electric wire inserted from the electric wire insertion hole 10 can be quickly connected. ing. Further, a release button 11 is internally provided in the contact terminal plate 6, and by inserting a driver or the like through the release hole 12, the release button 11 can be operated to release the coupling of the lock spring 9 and the electric wire can be pulled out. It is like this. A fulcrum protrusion 14 is provided on the lower portion of the terminal board 7, and an opening / closing element block 15 is provided on the fulcrum protrusion 14.
Is rotatably mounted. This switching element block 15
A movable contact 16 is provided on the upper part of the movable contact 16, and the movable contact 16 exchanges the contact with the fixed contact 17 on the upper part of the contact terminal plate 6 by the rotation of the switching element block 15.
A pair of lock springs 9 are internally provided in the terminal plate 8, and the terminal plate 8 and the lock springs 9 constitute a quick-connect terminal so that the electric wire inserted from the electric wire insertion hole can be fast-connected. There is. A release button 11 is provided inside the terminal board 8 and a release hole 12 is provided.
By inserting a screwdriver or the like, the release button 11 can be operated to release the connection of the lock spring 9, and the electric wire can be pulled out.

In the present embodiment, the current detecting element A is the current transformer 18. When an alternating current flows in the primary winding of the current transformer 18, an output current is generated in the secondary winding. The lead terminal 20 on the primary side connected to the primary winding of the current transformer 18 has a pin shape, and the lead terminal 20 is vertically drawn upward. Secondary side lead terminal 21 connected to the secondary winding of the current transformer 18.
Has a pin shape, and the lead terminal 21 is vertically drawn upward. In the case of the present embodiment, the current transformer 18 is housed inside an outer shell 22 made of resin, and the lead terminals 20 and 21 are inserted into the outer shell 22 so as to project upward from the upper surface of the outer shell 22. There is. When the lead terminals 20 and 21 are projected from the upper surface of the outer shell 22 in this manner, the lead terminals 20 and 21 are positioned and the lead terminals 20 and 21 are positioned.
And the lead terminals 20, 21
Dimensional accuracy is improved. This power transformer 18 is the outer shell 2
It is housed in the current detecting element housing recess 2 together with 2.
The continuous piece 24 is continuous from the upper end of the terminal plate 7 to the vicinity of the lead terminal 20.
A letter-shaped receiving portion 45 is provided. Then, one of the pair of lead terminals 20 is inserted into the receiving portion 45,
They are connected by caulking the receiving portion 45. Terminal board 8
The continuous piece 24 is also continuous from the upper end of the continuous terminal 24 to the vicinity of the lead terminal 20, and a substantially U-shaped receiving portion 45 is provided at the tip of the continuous piece 24. Then, the other lead terminal 20 is inserted into the receiving portion 45, and the receiving portion 45 is caulked for connection. That is, after the current transformer 18 is installed, the terminal plates 7 and 8 are installed from above, so that the lead terminal 2
0 is inserted into the receiving portion 45, and the lead terminal 20 and the terminal plates 7 and 8 are connected by caulking the receiving portion 45.

The light emitting element mounting block 25 is a conductor 26.
Is formed in the resin board 27 by insert molding. The ends of the pair of conductors 26 project from one end of the resin board 27, and the other ends of the pair of conductors 26 extend to the resin board 27.
It is exposed on the upper surface of the protruding portion 28 provided on the. Protrusion 28
A light emitting element 29 is mounted on the upper surface of the conductor 6 and the light emitting element 2
9 and 9 are connected. In the case of the present embodiment, the light emitting element 29 has two LEDs 29a mounted in parallel.
The ED and the diode may be provided in parallel, or two LEDs packaged in parallel may be used. When two LEDs or the like are provided in parallel, they are connected in antiparallel. A joint hole 30a is formed in the protruding portion 30 of the conductor 26 protruding from the resin board 27 of the light emitting element mounting block 25. The light emitting element mounting block 25 is mounted and mounted on the body 1 from above the current transformer 18. When the light emitting element mounting block 25 is mounted from above, the joint holes 30a of the pair of protrusions 30 and the pair of lead terminals 21 are formed.
Corresponds, and the lead terminal 21 is inserted into the joint hole 31 and connected. At this time, if the lead terminal 21 and the bonding hole 30a are soldered, the connection is more surely made.

The cover 31 is formed by providing a rectangular opening 33 on the upper surface, and the cover 31 is attached to the upper opening of the body 1. With the cover 31 attached to the body 1, an assembly frame 34 is fitted from the cover 31 side to the body 1, and the cover 31 and the body 1 are integrated by the assembly frame 34. A handle 35 for switching operation is provided inside the cover 31 so that the seesaw can move freely, and the upper surface of the handle 35 is exposed from an opening 33 of the cover 31. A tubular portion 36 is integrally provided in the handle 35, and one end of the coil spring 37 is attached to the handle 35.
Of the coil spring 37, and the other end of the coil spring 37 is inserted into the switching element block 15. When the handle 35 is moved in a seesaw manner, the open / close element block 15 is rotated reversely via the coil spring 37 so that the movable contact 16 and the fixed contact 17 come into contact with or separate from each other. Projecting portion 28 of light emitting element mounting block 25
Is inserted into the handle 35, and the light emitting element 29 is exposed through a through hole 38 provided in the upper surface of the handle 35. A lamp cover 39 is fitted in and attached to the through hole 38. A transparent card cover 40 is detachably fitted on the top of the handle 35 so that a card such as a name card can be held between the handle 35 and the card cover 40.

As described above, the switch with an indicator light is formed, and the open / close element block 15 can be inverted and rotated by the seesaw movement of the handle 35 to exchange the contact between the movable contact 16 and the fixed contact 17. When the 16 and the fixed contact 17 are brought into contact with each other to make the alternating current circuit conductive, the electromotive force generated in the secondary winding of the current transformer 18 is applied to the light emitting element 29, and the light emitting element 29 is turned on. Is displayed.

Further, the outer shape of the switch with an indicator light constructed as described above is equivalent to one embedded type wiring device which can be detachably attached to a mounting frame standardized by the Japanese Wiring Device Manufacturers Association. The mounting claw 41, which is set to a size and is a mounting portion to the mounting frame made of synthetic resin.
And a mounting hole 42 serving as a mounting portion to the mounting frame made of metal are formed in the assembly frame 34.

[0013]

As described above, according to the present invention, the lead terminals on the primary side and the lead terminals on the secondary side of the current detecting element housed in the body are formed into a pin shape and vertically pulled out, and the lead terminal on the primary side is removed. Insert and connect to the terminal plate of the AC circuit, mount the light emitting element mounting block equipped with the light emitting element to be the indicator light on the body on the current detection element, and insert and connect the secondary side lead terminal to the light emitting element mounting block. Therefore, when a terminal plate or light emitting element mounting block is installed from above the body with the current detection element built into the body, the lead terminals that are vertically pulled out upward correspond to the joining position of the terminal plate or light emitting element mounting block. The lead terminals can be assembled by inserting and connecting them. Moreover, since the light emitting element mounting block is attached to the body, the lead terminal on the secondary side does not move together with the handle as in the conventional case, and there is no risk of disconnection, and moreover, at the joint with the current detection element of the terminal board. Since the substantially U-shaped receiving portion is provided and the lead terminal on the primary side of the current detecting element is inserted into the substantially U-shaped receiving portion and the receiving portion is caulked, the lead terminal is formed into the substantially U-shaped receiving portion. By inserting the lead terminal, it becomes easier to insert the lead terminal, and by crimping the receiving portion, the lead terminal and the receiving portion can be reliably connected.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the above assembled state.

FIG. 3 is a cross-sectional view taken along a position different from that of FIG.

FIG. 4 is a plan view showing a state in which the above cover is removed.

[Explanation of symbols]

 A current detection element 1 body 7 terminal board 8 terminal board 18 current transformer 20 primary side lead terminal 21 secondary side lead terminal 23 joint hole 25 light emitting element mounting block 29 light emitting element 45 receiving part

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[Procedure amendment]

[Submission date] November 4, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

The light emitting element mounting block 25 is a conductor 26.
Is formed in the resin board 27 by insert molding. The ends of the pair of conductors 26 project from one end of the resin board 27, and the other ends of the pair of conductors 26 extend to the resin board 27.
It is exposed on the upper surface of the protruding portion 28 provided on the. Protrusion 28
A light emitting element 29 is mounted on the upper surface of the and the conductor 26 and the light emitting element 29 are connected. In the case of this embodiment, the light emitting element 29
Has two LEDs 29a installed in parallel,
Even if an LED and a diode are provided in parallel, two LEDs
You may use what packaged in parallel. When two LEDs or the like are provided in parallel, they are connected in antiparallel. A joint hole 30a is formed in the protruding portion 30 of the conductor 26 protruding from the resin board 27 of the light emitting element mounting block 25. The light emitting element mounting block 25 is mounted and mounted on the body 1 from above the current transformer 18. When the light emitting element mounting block 25 is mounted from above, the joint holes 30a of the pair of protrusions 30 and the pair of lead terminals 21 are formed.
Corresponds, and the lead terminal 21 is inserted into and connected to the joining hole 30a . At this time, if the lead terminal 21 and the bonding hole 30a are soldered, the connection is more surely made.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (1)

[Claims] 1. A contact inserted into an AC circuit, a current detection element connected so that an AC current flows through the primary side when the AC circuit is energized, and a secondary side of the current detection element connected to the AC circuit. In a switch with indicator light equipped with an indicator light that turns on when the power is turned on in the handle for switching contacts, the primary side lead terminal and the secondary side lead terminal of the current detection element inside the body are pin-shaped upwards. To the current detection element on the terminal board of the AC circuit
In addition to providing a letter-shaped receiving part, insert the primary side lead terminal into the substantially U-shaped receiving part and caulk the receiving part, and mount the light-emitting element mounting block equipped with the light-emitting element to be the indicator lamp on the current detection element. A switch with an indicator light, characterized in that it is mounted on and a lead terminal on the secondary side is inserted and connected to a light emitting element mounting block.