JPH043046B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a switch having a display light emitter.

(Prior Art) Conventionally, as shown in Japanese Patent Application Laid-Open No. 55-39183, a transformer is provided in a box-shaped body, the primary coil of this transformer is connected in series with a switch operating mechanism, and the secondary coil is connected in series with a switch operating mechanism. 2. Description of the Related Art A switch is known that is connected to a printed wiring board and lights up a display light emitting body.

The switch disclosed in Japanese Patent Application Laid-Open No. 55-39183 had a transformer installed inside the main body and a printed wiring board attached to the handle. Since the transformer and the printed wiring board were connected using jumper wires, the structure was complicated and it was necessary to assemble the necessary parts after attaching them to the main body and handle, making assembly difficult. .

Furthermore, in Japanese Utility Model Publication No. 55-45622, a pair of conductive legs each having a locking piece is attached to a plate body on which a light emitter is disposed, and the conductive legs are supported by a conductor in a container. A switch is described in which the body is loosely combined with a column within an operating body (handle). Furthermore, in Japanese Utility Model Publication No. 57-14337, a transformer is disposed at the bottom of the main body, a wiring board on which a light emitting body is arranged is supported by a handle, and a switch operating mechanism is provided between the transformer and the wiring board. It describes a switch that eliminates waste.

(Problems to be Solved by the Invention) The device disclosed in Japanese Utility Model Publication No. 55-45622 requires a special conductive leg having a locking piece, which increases the price accordingly. In addition, although the handle and the plate are loosely matched, the handle can only be rotated within this loosely matched range, so the feeling of switching the handle switch is slight, or the entire handle is rotated. The dimensions must be increased.

In addition, the switch described in Utility Model Publication No. 57-14337 has the wiring board supported by the handle.
The transformer or the wiring board must be supported on the main body and the handle, respectively, and then both must be assembled, making the assembly work troublesome.

Further, in all of the above-mentioned publications, the fixed contact and the movable contact of the switch operating mechanism are provided in the main body, but the spring is supported by the handle, that is, the lid. In this way, in both of the publications mentioned above, the switch operating mechanism is separated into the main body and the lid, so the main body and the lid are assembled separately up to an intermediate stage, and then both are combined to form a switch, which makes the work easier. It is troublesome, especially when the spring is blown off during work and the work has to be restarted.

Even if the technology described in the above-mentioned Utility Model Publication No. 55-45622 is applied to that of Utility Model Publication No. 57-14337,
It is clear that at least the problems described in the above-mentioned Japanese Utility Model Publication No. 55-45622 cannot be solved.

Therefore, an object of the present invention is to provide a switch that has a simple structure, is easy to assemble, can be provided at low cost, and does not restrict the rotation range of the handle by any structure other than the switch operating mechanism. purpose.

[Structure of the Invention] (Means for Solving the Problems) The switch of the present invention has a transformer disposed at the bottom of a box-shaped main body, and a plate-shaped frame having an opening in the middle part is fitted into the opening of the main body. In addition,
A wiring board having a light emitter disposed on its surface is provided in the opening of the frame with a penetration part between it and the peripheral edge of the opening of the frame, and facing away from the transformer, and this wiring board and a lead wire from the transformer, and a switch operating mechanism comprising at least an elastic body supported by the frame and a movable contact having a movable contact that approaches and separates from the fixed contact. and the wiring board, and further,
The handle is formed to have a transparent part that guides light from the light emitter and an engaging part that faces the switch operating mechanism, and the engaging part is formed by a penetrating part between the frame and the wiring board. A feature of the structure is that the switch is connected to the switch operating mechanism through the switch.

(Function) The switch of the present invention has all functional parts such as the transformer, frame, wiring board, and switch operating mechanism supported by the main body, and the required parts are supported by the main body and the handle, respectively, as in the conventional case. Since there is no need to assemble the parts after they have been assembled, assembly can be extremely simplified.

Further, there is no need for special conductive legs as shown in the above-mentioned Japanese Utility Model Publication No. 55-45622.

Furthermore, since the wiring board is disposed in the opening of the frame and there are no other parts between it and the peripheral edge of the opening of the frame, it is possible to form a large penetration part, and the penetration part is Since the engaging portion of the handle is formed at a position closer to the rotational fulcrum, the rotational range of the handle is not restricted by the wiring board. Therefore, it is possible to provide a sufficient switching operation feeling without increasing the overall size.

(Example) An example of the present invention will be described with reference to the drawings. First, the overall schematic configuration will be explained mainly with reference to FIG. 1 is a box-shaped main body having an opening 1a on one side; 2 and 3 are self-locking terminals on the power supply side and the load side provided at both ends of the bottom of main body 1; and 4 is provided at the center of the bottom of main body 1. A transformer, 5, is a frame body located at the opening of the main body 1 and supports the transformer 4, etc., and 6 is attached to the top surface of the frame body 5, facing away from the transformer 4, on the opening surface 1a of the main body 1. 7 is a switch operating mechanism provided between the transformer 4 and the printed wiring board 6; 8 is a handle for operating this switch operating mechanism; 9 is a switch operating mechanism that closes the opening of the main body 1; It is a lid body that surrounds the sides.

Next, the details of each structure will be explained with reference to the exploded perspective view shown in FIG. 2 and the enlarged assembled perspective view of the main parts shown in FIG. The power supply side self-locking terminal 2 is 1
A conductive plate 2a having a rectangular cylindrical shape and having a special feature 2a1.
It consists of one locking element 2b supported at two points and one unlocking element 2c surrounded by this conductive plate 2a.
The load-side self-locking terminal 3 includes two U-shaped conductive plates 3a, 3a, and two one-point-supported locks 3b surrounded by the conductive plates 3a, 3a, respectively.
3b and one unlocking element 3c.

The transformer 4 has a primary wound around a core 4b,
The terminals of each secondary coil are directly led out and formed into four lead wires 4a1, 4a2, 4a3, and 4a4.

The frame 5 has a general shape and has an opening 5d in the middle, and is fitted into the opening 1a of the main body 1 at the wing parts 5a, 5b and side edges 5c, 5c at both ends, and the bottom surface of the side edge 5c. The bottom surface of the recess 5e provided in the transformer 4 is brought into contact with the top of the core 4b of the transformer 4 (in FIGS. 1 and 2). Further, the wing portion 5a is provided with a protrusion 2a of the conductive plate 2a.
A through hole 5f is provided for passing through the wing portion 5b, and a protrusion 5g, which will be described later, is provided on the wing portion 5b.
Furthermore, the side edges 5c, 5c also have recesses 5 on the upper surface.
h, 5h.

The printed wiring board 6 has both sides cut out to form a T-shape, and in this embodiment, both end portions 6a and 6b are supported by both wing portions 5a and 5b of the frame body 5. That is, the recess 6g is provided at the tip of the one end 6a.
The other end 6b has a through hole 6h, and the projection 5g of the frame 5 is inserted into the through hole 6h to perform positioning or to prevent displacement.
Further, the printed wiring board 6 is provided with four terminal portions 6c1, 6c2, 6c3, and 6c4 on the side edges to connect the lead wires 4a1 to 4a4 of the transformer 4, the protrusion 2a1 of the conductive plate 2a, etc. can be,
Furthermore, it has a light emitting body 6d such as a light emitting diode and a protection diode 6e on its surface. The above-mentioned notches are portions that form through portions 6f, 6f between the opening 5d and the periphery of the frame 5 during assembly.

In this embodiment, the switch operating mechanism 7 is constructed as follows, for example.
That is, a rod-shaped elastic body 7a, such as a coil spring, supported by upper surface side recesses 5h, 5h of both side edges 5c, 5c of the frame 5, and a movable contact 7b, which seesaws while straddling this elastic body 7a. and fixed contacts 7d, 7d which are formed integrally with the load-side conductive plates 3a, 3a, and which the movable contact 7b makes contact with and separates from.
and a conductor 7c that electrically connects the elastic body 7a and the lead wire 4a1. The movable contactor 7b has both proximal end portions bent upward to form a penetrating portion 6f.
A pair of engaging elements 7e, 7e extending upward from the handle 8 and engaging with the handle 8 are provided in a protruding manner, and a movable contact 7f is provided at the distal end portion to contact and separate from the above-mentioned fixed contacts 7d, 7d. The conductor 7c is formed into a substantially L-shape as a whole, and is positioned below the rod-shaped elastic body 7a by locking the constricted portion 7c2 of one end side 7c1 to one recess 5h of the frame 5. , the other end side 7c3 is connected to the lead wire 4a1.

The handle 8 has a box shape and has lids 9 on both sides.
A pair of leg-shaped engaging portions 8 are provided on both sides facing the pair of engaging elements 7e, 7e of the switch operating mechanism 7.
d, 8d. And these engaging parts 8
The concave portions 8c, 8c on the inner surface of the bottom of d and 8d are adapted to engage with the engaging element 7e of the movable contact 7b from above (see Fig. 1), and a light emitter is provided on the top surface. A light-transmitting portion 8b, such as a light-transmitting window, is provided for guiding light from 6d. and,
The engaging portions 8d, 8d of the handle 8 engage with the engaging members 7e, 7e of the movable contact 7b through the penetrating portion 6f between the frame 5 and the wiring board 6, and the elastic body 7a of the movable contact 7b is Pressing downward against elasticity, the handle 8
The movable contactor 7b moves in a seesaw manner in accordance with the swinging motion of the movable contactor 7b.

To assemble this switch, for example, the power supply side self-locking terminal 2, the load side self-locking terminal 3, and the transformer 4 are housed in the main body, the frame 5 is fitted into the opening 1a, and the wiring is The board 6 is placed on the frame 5, and the lead wires 4a1 to 4a4 of the transformer 4 are connected to the wiring board 6.
The penetrating portions 6f, 6f are penetrated. Next, each of the lead wires 4a1 to 4a4 is connected to the terminal portion 6 of the wiring board 6.
It is connected to c1 to c4 by a well-known method such as solder. In this embodiment, the protrusion 2a1 passing through the through hole 5f of the conductive plate 2a is fitted into the recess 6g of the wiring board 6 and simultaneously connected to the lead wire 4a2 and the terminal portion 6c2 by soldering. Further, in this embodiment, the constricted portion 7c2 of the conductor 7c is locked in the recess 5h of the frame 5, and the other end portion 7c3 is connected to the terminal portion 6c1 and the lead wire 4a1 by soldering. Next, the rod-shaped elastic body 7a is hung over the concave portion of the frame pair 5, and the movable contactor 7b is made to straddle the rod-shaped elastic body 7s. As a result, the lead wire 4a1 - the primary coil of the transformer 4 - the lead wire 4a2 - the conductor 7c - the rod-shaped elastic body 7A
- The power supply side terminal 2 and the load side terminal 3 can be connected to and separated from each other via the movable contactor 7b. Lead wire 4a3
A light emitter 6d and the like are electrically connected to 4a4 and 4a4.

In this embodiment, as shown in FIG. 3, only the transformer 4, the frame 5, the wiring board 6, and the switch operating mechanism 7 may be assembled in advance by assembling and connecting them by soldering as described above. good. In addition, in FIG. 3, the frame 5 and the soldered state are omitted. Then, place this integrated thing into the main body 1 so that the transformer 4 is located at the bottom of the main body 1.
It is housed in the main body 1 by dropping it through the opening 1a, and the required electrical connection with the terminal 2 is made. in this case,
The transformer 4, the frame 5, the wiring board 6, and the switch operation mechanism 7 can be assembled as constituent bodies before the main body 1 is stored, and can be installed by being dropped into the main body 1, making assembly even easier.

In either case, after each structure is assembled into the main body 1, the handle 8 may be attached to the main body 1 through the through portion 6f of the wiring board 6.

In the present invention, the wiring board may be one in which electrical components and electrical wiring connected to the electrical components are provided on a substrate. Furthermore, the specific configuration of the switch operating mechanism is arbitrary. Furthermore, in the present invention, the lead wire of the transformer may be a separate lead wire connected to a terminal provided in the coil portion.

[Effects of the Invention] As described in detail above, the present invention includes a transformer disposed at the bottom of the main body, a frame fitted into the opening of the main body, and a wiring board provided with a light emitter attached to the frame. A switch operating mechanism is disposed in the opening of the body, and a switch operating mechanism is disposed between the transformer and the wiring board, and the engaging part of the handle and the wiring board are connected to the switch mechanism through the penetrating part between the frame body. Since they are connected, the functional parts can be assembled only on the main body side, making assembly extremely simple. Further, since the handle can be attached after each component is housed in the main body, this assembly work is also facilitated.

Furthermore, since the handle does not require a structure for attaching parts, the structure is simple and easy to manufacture, and there is no need for special conductive legs as shown in Japanese Utility Model Publication No. 55-45622.

Furthermore, the wiring board is arranged in the opening of the frame, and there are no other parts in this opening, so the penetration part can be made larger, and the penetration part is formed at a position closer to the rotational fulcrum of the engagement part of the handle. Therefore, the rotation range of the handle is not restricted by the wiring board. Therefore, it is possible to provide a sufficient switching operation feeling without increasing the overall size.

[Brief explanation of drawings]

FIG. 1 is a sectional view of one embodiment of the switch of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is an enlarged assembled perspective view of the main parts. 1...Main body, 1a...Opening, 4...Transformer,
5...Frame body, 6...Wiring board, 6d...Light emitter, 6
f... Penetration part, 7... Switch operation mechanism, 7a...
...Elastic body, 7b...Rotating contact, 7c...Conductor,
7d... Fixed contact, 7f... Movable contact, 8... Handle, 8d... Transparent part, 8d... Engaging part.

Claims (1)

[Claims] 1. A box-shaped main body having an opening; A transformer disposed at the bottom of the main body and having lead wires led out; A transformer having an opening in the middle and fitted into the opening of the main body; a frame body; a light emitting body is disposed on the surface thereof, and a penetrating portion is provided between the frame body and the opening peripheral portion of the frame body, and the frame body is provided at the opening part of the frame body facing away from the transformer; a wiring board formed by electrically connecting lead wires of the transformer; at least an elastic body supported by the frame; and a movable contact actuated by the elastic body having a movable contact that contacts and separates from a fixed contact; a switch operating mechanism disposed between the transformer and the wiring board; a light-transmitting part that covers the wiring board and guides light from the light emitter, and an engaging part that faces the switch operating mechanism; and a handle for operating the switch operating mechanism by connecting the engaging portion to the switch operating mechanism via a penetrating portion between the opening peripheral portion of the wiring board and the frame. Switch to do. 2. The switch according to claim 1, wherein the handle has a box shape and houses the light emitting body therein.