JP3285232B2 - Switch with indicator light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch equipped 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 light of this type, for example, the present applicant has previously published Japanese Patent Application No.
(JP-A-2-112118) . This detects the energized state with a current transformer,
An indicator light such as a light emitting diode connected to the secondary winding of the current transformer blinks. In this switch with indicator light, a primary-side flexible lead derived from a current transformer is led to a terminal plate, connected by soldering, and a secondary-side flexible lead derived from the current transformer is connected. The wires are led to the printed circuit board and connected by soldering, the printed circuit board is mounted on the lower surface of a 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] In addition, a body is mounted on a body in which a current transformer is mounted.
Attach the cover to cover the top opening of the
Turn the switching element block inside the body to open and close the road.
It is movably arranged and this switching element block is switched.
Handle inside the cover for seesaw movement
Cover to expose the handle to the opening of the cover.
A coil for turning the opening and closing element block
Between the handle and the opening / closing element block.
Has been placed.

[0004]

By the way, in the above-mentioned conventional example, it is necessary to lead a flexible lead wire to a predetermined position and connect it by soldering, and the printed circuit board must be attached to a handle. In addition, there is a problem that it is difficult to automatically assemble, 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.
Also, when assembling the switch with indicator light,
Transformer, terminal board, switching element block, printed wiring
Incorporate boards, covers, handles, coil springs, etc.
Is turned by the handle operation.
Coil spring is between handle and switching element block
When installing in
It is difficult to place the interposed parts, which is a bad effect of automatic assembly.
ing.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a handle and an opening and closing mechanism.
Easily incorporates a coil spring between the element block
It is to provide a switch with indicator lights that can be automatically assembled can Mukoto.

[0006]

In order to achieve the above object, a switch with an indicator light according to the present invention is connected to a contact inserted into an AC circuit so that an AC current flows to the primary side when the AC circuit is energized. provided with a current transformer, comprising a display lamp which lights when power supply to the alternating current circuit connected to the secondary side of the current transformer in the handle for contact switching, current
Install the transformer inside the body and
Pull out the lead terminals and the secondary side lead terminals, and
Connect the lead terminals of the
Attach the cover to cover the top opening of the body,
Open / close element block inside the body to open / close the circuit
The opening and closing element block
The handle to perform the change operation can be moved freely in the cover inside the cover
Install the handle and expose the handle to the opening of the cover.
For turning the opening / closing element block in reverse.
Il spring between handle and opening / closing element block
Place the coil spring in the cylinder provided in the handle.
One end of the ring is inserted, a light emitting element mounting block having a light emitting element serving as an indicator light is disposed under the handle, and a secondary lead terminal of the current transformer is connected to the light emitting element mounting block. Features.

[0007]

According to the above construction, the coil spring is incorporated.
The one end of the coil spring inside the barrel of the handle.
And hold the coil spring on the handle
Can incorporate the handle and handle and opening and closing element
Incorporates a coil spring at a predetermined position between the block and
The coil spring is easy to install.
Thus, automatic assembly can be realized.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS.

In a body 1 formed of resin, a current transformer housing recess 2 and terminal board housing recesses 3, 4, and 5 are provided. 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 provided inside the contact terminal plate 6, and a quick connection terminal is formed by the contact terminal plate 6 and the lock spring 9, so that the wire inserted from the wire insertion hole 10 can be quickly connected. ing. Further, a release button 11 is provided inside the contact terminal plate 6, and the connection of the lock spring 9 can be released by operating the release button 11 by inserting a screwdriver or the like from the release hole 12 so that the electric wire can be pulled out. It has become. A fulcrum projection 14 protrudes from a lower portion of the terminal plate 7.
Is rotatably mounted. This switching element block 15
A movable contact 16 is provided on the upper part of the contact terminal plate 6, and the movable contact 16 exchanges a 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 provided inside the terminal plate 8, and the terminal plate 8 and the lock spring 9 constitute a quick connection terminal, so that the wire inserted from the wire insertion hole can be quickly connected. I have. A release button 11 is provided inside the terminal plate 8, and a release hole 12 is provided.
By inserting a screwdriver or the like from below, the connection of the lock spring 9 can be released by operating the release button 11, and the electric wire can be pulled out.

The current transformer 18 generates an output current in a secondary winding when an AC current flows in a primary winding of the current transformer 18. The primary-side lead terminal 20 connected to the primary winding of the current transformer 18 has a pin shape, and the lead terminal 20 is drawn vertically upward.
The 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 drawn vertically upward. The current transformer 18 is housed in an outer shell 22 formed of resin, and the lead terminals 20 and 21 are inserted through the outer shell 22 so as to project upward from the upper surface of the outer shell 22. When the lead terminals 20 and 21 are projected from the upper surface of the outer shell 22 in this manner, the lead terminals 2
0 and 21 are positioned, and the lead terminals 20 and 21 project straight and vertically, and the dimensional accuracy of the lead terminals 20 and 21 is improved. The current transformer 18 is housed in the current transformer housing recess 2 together with the outer shell 22. The extending piece 24 is extended from the upper end of the terminal plate 7 to the vicinity of the lead terminal 20.
Has been perforated. One of the pair of lead terminals 20 is inserted into the joint hole 23 and connected. The extending piece 24 is extended from the upper end of the terminal plate 8 to the vicinity of the lead terminal 20, and a joining hole 23 is formed at the tip of the extending piece 24. The other lead terminal 20 is inserted and connected to the joint hole 23. That is, after the current transformer 18 has been assembled, the terminal plates 7 and 8 are assembled from above, whereby the lead terminals 20 are inserted into the joint holes 23 and the lead terminals 20 and the terminal plates 7 and 8 are connected.
At this time, if the joint between the lead terminal 20 and the joint hole 23 is soldered, the connection is further ensured.

The light emitting element mounting block 25 includes a conductor 26.
Is formed in the resin board 27 by insert molding. The ends of the pair of conductors 26 protrude from one end of the resin board 27, and the other end of the pair of conductors 26
And is exposed on the upper surface of the protruding portion 28 provided at the bottom. Projection 28
A light emitting element 29 is mounted on the upper surface of the light emitting element 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 mounted in parallel,
Even if an LED and a diode are provided in parallel, two LEDs
May be used in parallel. When two LEDs or the like are provided in parallel, they are connected in antiparallel. A joint hole 30a is formed in a 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 on the body 1 from above the current transformer 18 and mounted. When the light-emitting element mounting block 25 is mounted from above, the joining holes 30a of the pair of protrusions 30 and the pair of lead terminals 21
And the lead terminal 21 is inserted into the joint hole 30a and connected. Also at this time, the lead terminal 21 and the joint hole 30a
When soldering is performed between them, connection is made more reliably.

The cover 31 is formed by providing a rectangular opening 33 on the upper surface, and the cover 31 is attached to the upper surface 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 as to be able to move seesaw freely, and the upper surface of the handle 35 is exposed from the opening 33 of the cover 31. A cylindrical portion 36 is integrally provided in the handle 35, and one end of the coil spring 37 is connected to the handle 35.
The other end of the coil spring 37 is inserted into the opening / closing element block 15. Thus, when the handle 35 is moved in a seesaw motion, the opening / closing element block 15 rotates reversely via the coil spring 37, and 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 from a through hole 38 provided on the upper surface of the handle 35. A lamp cover 39 is fitted into the through hole 38 and attached. A transparent card cover 40 is removably fitted on the upper portion 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 and held.

A switch with an indicator light is formed as described above, and the movable element 16 and the fixed contact 17 can be exchanged by inverting and rotating the opening / closing element block 15 by moving the handle 35 in a seesaw motion. When the AC circuit is turned on by bringing the fixed contact 16 into contact with the fixed contact 17, an electromotive force generated in the secondary winding of the current transformer causes the light emitting element 29 to emit light.
, And it is displayed that the light emitting element 29 is turned on.

A current transformer 18 is incorporated in the body 1.
When the terminal plates 7, 8 and the light emitting element are
When assembling the mounting block 25, pull it vertically
Pin-shaped lead terminals 20 and 21 and terminal plates 7 and 8
With the joint holes 23, 30a of the light emitting element mounting block 25
And lead terminals 20 and 21 are connected to bonding holes 23 and 30.
can be assembled by inserting and connecting to a.
Connection of the terminals 20 and 21 is simple and automatic assembly is possible.
become able to. Also, the light emitting element mounting block 25
Lead terminal 21 on the secondary side
It does not move with the handle 35 as before,
It does not. Furthermore, a tree provided integrally with the current transformer 18
The lead terminals 20, 21 are separated from the upper surface of the outer shell 22 of the resin molded product.
The lead terminals 20 and 2 are pulled out vertically upward.
1 dimensional accuracy is ensured, and the above assembling becomes easier.
You.

The outer shape of the switch with an indicator light configured as described above corresponds to one embedded wiring device that can be detachably mounted on a mounting frame standardized by the Japan Wiring Equipment Manufacturers Association. Mounting claw 41 which is set to the size to be attached and serves as a mounting portion to a mounting frame made of synthetic resin.
The mounting frame 34 is formed with a mounting hole 42 serving as a mounting portion to a metal mounting frame.

[0016]

According to the present invention, the steering wheel is operated as described above.
Coil sp for reversing rotation of the switching element block
Place the ring between the handle and the switching element block
Along with the coil spring inside the cylinder provided in the handle
Since one end is inserted, incorporate a coil spring
The one end of the coil spring inside the barrel of the handle.
And hold the coil spring on the handle
Can incorporate the handle and handle and opening and closing element
Incorporates a coil spring at a predetermined position between the block and
The coil spring is easy to install.
Thus, automatic assembly can be realized.

[Brief description of the drawings]

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

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

FIG. 3 is a cross-sectional view taken at a different position from FIG. 2;

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 7 Terminal plate 8 Terminal plate 18 Current transformer 20 Primary lead terminal 21 Secondary lead terminal 22 Outer shell 25 Light emitting element mounting block 29 Light emitting element

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 9/18 H01H 9/16 H01H 23/02

Claims (1)

(57) [Claims] 1. An AC circuit comprising: a contact inserted into an AC circuit; and a current transformer connected so that an AC current flows to a primary side when the AC circuit is energized, and connected to a secondary side of the current transformer. provided in the handle for contact switching the indicator lamp which lights when power supply to the, ball current transformer
And the lead terminals on the primary side of the current transformer
Pull out the secondary lead terminal and the primary lead terminal
To the terminal board of the AC circuit,
Attach the cover to cover the opening and open and close the AC circuit
The opening / closing element block is rotatably arranged in the body to perform
And switch this switching element block.
The handle inside the cover so that it can move
The handle is exposed to the opening of the
Coil spring for reverse rotation of element block
Position between the handle and the switch block.
One end of the coil spring in the cylinder provided in the handle
Part is inserted, a light emitting element mounting block having a light emitting element serving as an indicator light is arranged under the handle, and a secondary lead terminal of the current transformer is connected to the light emitting element mounting block. A switch with an indicator light, characterized in that: