JPH0487228A - Switch - Google Patents

Abstract

PURPOSE:To prevent the influence on the operation of a switching system and breakage of a secondary wire, and improve wiring workability by providing a base plate having a light emitting element with a connecting part formed in a position close and opposite to one surface of the current transformer of the base plate and connecting the secondary side of the current transformer to the light emitting element. CONSTITUTION:A switching system receiving chamber 3 and a transformer receiving chamber 4 are partitioned and juxtaposed in a body 1, a switching system 6 is received in the switching system receiving chamber 3, and current transformers 25a, 25b are received in the transformer receiving chamber 4 with the primary sides being connected between the switching system 6 and a power source 57. A base plate 20 has a light emitting element 33, and connecting parts 41-44 are formed in positions close and opposite to one-side surfaces of the current transformers 25a, 25b of the base plate 30, and connects the secondary sides of the current transformers 25a, 25b to the light emitting element 33. Thus, a secondary wire can be connected to the base plate 33 so that it never make contact with the switching system 6. Thus, the influence on the operation of the switching system and the breakage of the secondary wire can be prevented, and wiring workability can be improved.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a switch.

2. Description of the Related Art Conventionally, there has been a switch with an operation display function that displays the connection state between a power source and a load. Such a switch includes an opening/closing mechanism, a current transformer, and a substrate having a light emitting element connected to the secondary side of the current transformer.

Problems to be Solved by the Invention Generally, the primary wire connected to the primary coil of a current transformer is a thick wire to withstand high voltage, but the secondary wire connected to the secondary coil carries a low voltage. A thin line is used for this purpose. On the other hand, since the substrate having the light emitting element and the current transformer are far apart, the secondary line becomes long. Because this secondary wire is thin, it bends easily, and because it is long, it may come into contact with the moving parts of the opening/closing mechanism.As a result, the operation of the opening/closing mechanism is affected, and the secondary wire is likely to break.
Furthermore, the workability of wiring is also poor.

Means for Solving the Problems: A main body in which an opening/closing mechanism storage chamber and a transformer storage chamber are separated and arranged side by side, an opening/closing mechanism stored in the opening/closing mechanism storage chamber, and a primary power source between the opening/closing mechanism and the power source. A current transformation transformer whose sides are connected and is housed in the transformer storage chamber; a substrate having a light emitting element; A connecting portion connects the next side and the light emitting element.

The board with the active light emitting element has a connection part for connecting the secondary wire of the current transformer at a position close to and facing one side of the current transformer, so it can be opened and closed by shortening the length of the secondary wire. It can be connected to the board by stretching it straight without touching the mechanism, so it does not affect the operation of the opening/closing mechanism, prevents disconnection of the secondary wire, and improves wiring workability. can be improved.

Example An embodiment of the present invention will be described based on the drawings.

As shown in FIG. 2, the opening/closing mechanism storage chamber 3 and the transformer storage chamber 4 are formed in the main body 1 having a negative side opening, and the transformer storage chamber 4 is divided into two by the partition wall 5. There is. The opening/closing mechanism storage chamber 3 is provided with an opening/closing mechanism 6 that connects and connects two circuits. This opening/closing mechanism 6 has a fulcrum terminal plate 7a.

7b, movable pieces 8a and 8b that swing in conjunction with the rotational movement of the handle, which will be described later, and a contact terminal plate 9a.

9b and more. A movable piece 8 is provided on the fulcrum contact plates 7a and 7b.
A concave fulcrum portion 11 that electrically contacts one end 10 of a, 8b and swingably supports it, and a connecting portion 12 having a notch located at the upper end are formed. Contact terminal plate 9a
, 9b are provided with fixed contacts 13.14 facing each other in the vertical direction, and movable contacts 15 located between these fixed contacts 13.14 are provided on the movable pieces 8a, 8b. Here, the fixed terminals 14 of the contact terminal plates 9a, 9b are arranged opposite to each other above the fixed terminals 13 of the other contact terminal plates 9a, 9b. That is, the movable piece 8a swings so that the movable contact 15 contacts the fixed contact 13 or 14,
Depending on the switching position, the fulcrum terminal plate 7a is connected to the contact terminal plate 9a or 9b.

Similarly, by swinging the movable piece 8b, the movable contact 15
contacts the fixed contact 13 or 14, and connects the fulcrum terminal plate 7b to the contact terminal plate 9b or 9a depending on the switching position.

A connection spring 16 is resiliently brought into contact with the inner surfaces of the contact terminal plates 9a and 9b.

These connection springs 16 sandwich electric wires connected to an external circuit between the inner surfaces of the contact terminal plates 9a and 9b. Reference numeral 17 denotes a connection release button, and when pressed from below, the connection release button 17 bends the connection spring 16 and releases the contact terminal plates 9a, 9.
b, and allows the electric wire to be attached and detached. Further, a protruding piece 18 is formed on the upper end of the contact terminal plates 9a, 9b, and a presser plate 19 for pressing the contact terminal plates 9a, 9b is inserted into the groove 20 formed on both sides of the opening/closing mechanism storage chamber 3. It is fitted. Furthermore, a compartment 22 is formed in the main body 1 and is partitioned from the opening/closing mechanism storage chamber 3 by a partition wall 21, and this compartment 22 includes terminal plates 23a,
23b is stored. These terminal boards 23
A connection spring 16 for connecting an electric wire connected to an external circuit is elastically contacted on the inner surface of each of a and 23b, and a connection portion 24 having a notch is formed at the upper end. Two current transformers 25a are housed in the transformer storage chamber 4.

25b has a primary wire 26.27 connected to the secondary coil and a secondary wire 28.29 connected to the secondary coil. The tip of the primary wire 26 of one current transformer 25a is inserted into the notch of the connecting portion 12 of the fulcrum contact plate 7a, wound around it, and then soldered, and the tip of the other primary wire 27 is soldered to the front. It is inserted into the notch of the connection part 24 of the starting terminal plate 23a, wound around it, and then soldered.

By a similar connection means, the tip of the primary wire 26 of the other current transformer 25b is connected to the connection point of the fulcrum contact plate 7b]
2, and the tip of the other primary wire 27 is soldered to the connecting portion 24 of the terminal board 23b.

As shown in FIG. 1, a neon tube 31, a resistor 32, and a unidirectional light emitting diode 33 as a light emitting element are mounted on a printed circuit board 30 fixed to the opening surface of the main body l.
and two diodes 34.35 as rectifying elements,
Two diodes 36 and 37 for circuit protection are held while forming a display circuit 38 by a conductive pattern.

Openings 39 and 40 are formed in this printed circuit board 30 to open the upper space of the opening/closing mechanism 6, and connecting portions 41 and 41 facing directly above the transformer storage chamber 4,
42, 43, and 44 are formed.

Further, the contact terminal plate 9a is provided on the bullet board 30.

A connecting portion 45 into which the protruding piece 18 of 9b is inserted and soldered is connected.

Next, a handle 46 for switching the opening/closing mechanism 6 and a cover 47 attached to the opening surface of the main body 1 are provided. The handle 46 includes an operating part 49 protruding from an opening 48 formed on both sides of the cover 47, an opening 50 facing the neon tube 31 and the light emitting diode 33, and an opening 50 located on both sides of the opening 50. Triangular fulcrum portions 51 are formed at the lower portions of these fulcrum portions 51, and project from the openings 39 and 40 of the printed circuit board 30 into the opening/closing mechanism storage chamber 3 to support the upper portions of the movable pieces 8a and 8b. A pressing spring 52 is held. A display window 53 facing the neon tube 31 and the light emitting diode 33 is formed in the cover 47.
3 is fitted with a lamp cover 54. Reference numeral 55 denotes a stopper for fixing the cover 47 to the main body 1. As shown in FIG. 3, a chevron-shaped recess 56 is formed on the inner surface of the cover 47 to receive the fulcrum 51 of the handle 46. As shown in FIG.

As shown in FIG. 7, the connecting portions 41, 42, 43, 44 of the printed circuit board 30
a, 25 Secondary line 2 extending straight upward from b
8.29 is located at the insertion position, so that the secondary wire 28.29 is connected to the display circuit 38 with the shortest distance and is connected to the movable pieces 8a, 8b of the opening/closing mechanism 6 and the handle 4.
There is no risk of touching 6.

Next, the circuit is shown in FIG. The current transformer 25
One end of the primary coil a, 25b is connected to the fulcrum contact plate 7a or 7b, the other end of the primary coil is connected to the terminal plate 23a or 23b, and the other end of the primary coil is connected to the fulcrum contact plate 7a or 7b.
is connected to the contact terminal plate 9a or 9b via the movable pieces 8a, 8b. In addition, current transformer 25a, 2
The light emitting diode 33 is connected to the secondary coil 5b, and the rectifying diodes 34 and 35 are connected between one end of the secondary coil of each of the current transformers 25a and 25b and the anode side of the light emitting diode 33. Further, the diodes 36 and 37 are connected to both ends of the secondary coils of the current transformers 25a and 25b, and the neon tube 31 and the resistor 33 are connected between the contact terminal plates 9a and 9b. They are short-circuited by a series circuit, thereby forming a circuit switch SW1. The contact terminal plates 9a and 9b are connected to a commercial power source 57 via a three-way switch SW.
The terminal plates 23a and 23b are three-way switches SW.

It is connected to a commercial power source 57 via a load 58 and a load 58 .

In such a configuration, when the operating portion 49 protruding from the opening 48 of the cover 47 is pressed and the handle 46 is rotated about the fulcrum portion 51, the rotational force of the handle 46 is transferred by the spring 52 to the movable piece 8a, 8b.

As a result, the fulcrum terminal plates 7a, 7b and the contact terminal plate 9a,
The state of connection of the lever with 9b can be freely switched using movable pieces 8a and 8b. Therefore, the three-way switch S
By operating either W, SW or the opening/closing mechanism 6 of the four-way switch SW1, the power supply to the load 58 can be switched on and off. When the load 58 is being driven, the secondary voltage of the current transformer 25a or 25b is applied to the diode 3.
4 or 35 and then supplied to the light emitting diode 33, the driving state of the load 58 can be displayed using the inexpensive unidirectional light emitting diode 33. In this case, the light emitting diode 33 is connected by the diode 36 or 37.
can be protected. When the commercial power supply 57 and the load 58 are cut off, the AC voltage of the commercial power supply 57 is reduced in pressure by the resistor 32 and supplied to the neon tube 31, so the neon tube 31 lights up and the load 58 is turned off. Display the driving state.

In addition, the secondary wires 28 and 29 of the current transformers 25a and 25b
Although thin wire is generally used, the main body 1 is roughly divided into an opening/closing mechanism storage chamber 3 and a transformer storage chamber 4, and a connecting portion 41 of the display circuit 38 is installed on the open surface of the transformer storage chamber 4.
, 42, 43, and 44, the thin secondary wires 28 and 29 of the current transformers 25a and 25b are connected to the switch #l.
It can be connected to the display circuit 38 at a position away from the $6 movable pieces 8a, 8b and the handle 46 at the shortest possible distance, thereby preventing disconnection or poor connection of the secondary wires 28 and 29. Furthermore, as shown in FIG. 7, the primary wires 26 and 27 of the current transformation transformers 25a and 25b are connected to the connecting portions 12 at the upper ends of the fulcrum terminal plates 7a and 7b located at the ends of the opening and closing mechanism storage chamber 3, and Since the movable piece 8a of the opening/closing mechanism 6 is connected to the connecting portion 24 at the upper end of the terminal plates 23a and 23b stored in the compartment 22 away from the mechanism storage chamber 3,
.

8b and the handle 36. Furthermore, since the protrusions 18 of the contact terminal plates 9a and 9b are directly connected to the connecting portion 45 of the display circuit 38, the connecting wires for connecting the contact terminal plates 9a and 9b to the neon tube 31 and the resistor 32 can be omitted. I can do it. Further, the light emitting diode 33 and the neon tube 31 are located in the central opening 50 of the handle 46 and face the lamp cover 54, so that they do not interfere with the handle 46. Hence the opening and closing machine! 6 movable piece 8a.

8b and the handle 46 can be operated smoothly without interfering with surrounding parts.

Effects of the Invention As described above, the present invention includes a main body in which an opening/closing mechanism storage chamber and a transformer storage chamber are separated and arranged side by side, an opening/closing mechanism stored in the opening/closing mechanism storage chamber, and a power supply between the opening/closing mechanism and a power source. a current transformer having a primary side connected therebetween and housed in the transformer storage chamber; a substrate having a light emitting element; Since it is configured with a connection part that connects the secondary side of the current transformer and the light emitting element, the board having the light emitting element connects the secondary line of the current transformer at a position close to and facing one side of the current transformer. Because it has a connection part that allows the secondary wire to be connected to the board by shortening the length of the secondary wire so as not to touch the opening/closing mechanism, it can be connected to the board, thus affecting the operation of the opening/closing mechanism. Moreover, it has the effect of preventing disconnection of the secondary wire and further improving the workability of wiring.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view showing the support structure of the printed circuit board, handle, and cover, FIG. 2 is an exploded perspective view of the opening/closing mechanism, and FIG. 3 is a longitudinal side view. Figure 4 is a perspective view showing the inside of the main body, Figure 5 is a plan view showing the arrangement of the opening/closing mechanism and current transformation transformer, and Figure 6 shows the connection state between the primary side of the current transformation transformer and the opening/closing mechanism. Plan view,
FIG. 7 is a plan view showing the connection between the secondary side of the current transformer and the printed circuit board, FIG. 8 is a plan view of the main body closed by a cover, and FIG. 9 is a circuit diagram. DESCRIPTION OF SYMBOLS 1...Main body, 3...Opening/closing mechanism storage chamber, 4...Transformer storage chamber, 6...Opening/closing mechanism, 25a, 25b...
Current transformer, 30... substrate, 33... light emitting element,
41 to 44...Connection part, 57...Power supply applicant Toshiba Lightic Co., Ltd. Figure 4, m Z5'bδ store m

Claims (1)

[Claims] A main body in which an opening/closing mechanism storage chamber and a transformer storage chamber are separated and arranged side by side, an opening/closing mechanism stored in the opening/closing mechanism storage chamber, and a primary side connected between the opening/closing mechanism and a power source to store the transformer. A current transformation transformer housed in a chamber, a substrate having a light emitting element, and a substrate formed at a position close to and facing one surface of the current transformation transformer, and a secondary side of the current transformation transformer and the light emitting element. A switch characterized by comprising a connection part for connecting the