JPH0473890A - Light control switch - Google Patents

Abstract

PURPOSE:To reduce the size and weight of a light control switch with position indicating function by making a volume and a switch into different parts, and forming a detent for lug and the operation part of a switch on two ribs provided on the periphery of the volume fitting part of a lug. CONSTITUTION:Two ribs 30b, 30c are concentrically provided around a fitting part 30 fitted to the volume operating shaft of a lug 30 for volume, the height of the outside rib 30c is partly increased to form an operation part 30e, which pushes an operation button 31, when the lug 30 is completely rotated, to light a neon lamp. At this time, a protruding rib 30d as a detent part making contact with a detent 14h formed on the edge of a hole 14c passing the volume is formed on the inside rib 30b to prevent the excessive rotation of the lug 30. Thus, the strength of the lug can be increased by forming the two ribs 30b, 30c on the back surface of the lug 30, and a light control switch can be reduced in size and weight by making the volume and the switch into separate parts.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a light control system in which a lamp for indicating the position of a dimmer switch lights up when a rotary volume that adjusts the dimming state is fully turned off. This relates to a dimmer switch.

[Prior art] Conventional dimmer switches use a rotary volume for dimming adjustment, and are equipped with an integrated switch that turns on (or off) when the volume is turned all the way. Some devices connect a lamp between the lighting fixture and the power source via a switch, and the lighting of this lamp indicates the position of the dimmer switch.

[Problems to be Solved by the Invention] However, when using a volume with an integrated switch like the above-mentioned dimmer switch, the shape of the volume becomes large and heavy, so it is difficult to make the dimmer switch smaller and lighter. The problem was that I couldn't do it.

Moreover, with conventional dimmer switches that use this type of rotary volume, there is a problem in that turning the knob too much may damage the knob or the volume, or pushing the knob from the front may damage the knob.

The present invention has been made in view of the above points, and its purpose is to reduce the size and weight of a dimmer switch with a position display function, to prevent the volume knob from being turned too much, and to prevent the volume knob from being turned too much. The purpose is to make the knob strong against the force applied from the outside.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a rotary volume that adjusts the dimming state, and a system that connects the lighting equipment to the power source when the volume is fully turned off. Two ribs are installed around the periphery of the fitting part that fits into the control shaft of the volume of the knob that is attached to the switch that connects the lamp for indicating the position of the dimmer switch in series in between,
One of the ribs is formed with a rotation preventing part to prevent the volume from being turned too much, and the other rib is formed with an operating part that presses the operating piece of the switch when the volume is turned all the way to the light-off side.

[Function] As described above, the present invention makes the volume and the switch separate parts, so that the volume and the switch can each be made smaller and lighter, thereby making it possible to reduce the size and weight of the dimmer switch. , the knob is provided with a rotation stopper to prevent the knob from being turned too much, and the knob rotation stopper and switch operation section are provided around the periphery of the fitting section that fits into the knob's volume control shaft. By forming two strips of ribs, these ribs support the knob from behind, making the knob strong against forces applied from the front side.

[Example] An embodiment of the present invention is shown in FIGS. 1 to 4.

The dimmer switch of this embodiment has terminals T and T2 shown in FIG.
are connected to one end of the AC power supply and one end of the lighting fixture, and inserted in series to the lighting equipment connected to the AC power supply, and the conduction angle of the triac Q1 connected to both ends of terminals T, T2 is controlled. (in other words, phase control) to control the power supplied to the lighting equipment (in other words, by performing phase control) and dim the lighting equipment.

Here, the conduction angle of the triac Q1 is controlled by a trigger circuit 6 consisting of a diac Q2, a resistor R1, a volume VR, a capacitor C, and a Zener diode ZD, ZD2, and the dimming amount is controlled by setting the volume VR. It is possible to adjust it. In addition, in this dimmer switch, a switch SW is connected in series with the triac Q1 to set the volume VR.

When the lighting condition of the lighting equipment is fully turned down (in other words, when the lighting equipment is controlled to the darkest state), the above switch SW is turned off, and when this switch SWl is turned off, A neon lamp Ne is connected to both ends of terminals T+ and T2 via a current limiting resistor R1 and is turned on to indicate the installation location of the dimmer switch. Further, a filter circuit 7 consisting of capacitors C2 and C on choke coils and a resistor R2 is connected to both ends of the triac Q to prevent noise generated by switching of the thyristor Q2 from being output.

The dimmer switch of this embodiment consists of a dimmer switch main body A formed into two modules with external dimensions of ready-made embedded wiring devices, and three ready-made wiring devices arranged vertically and buried in a wall surface etc. It has a structure that combines a series of ready-made mounting frames used when the dimmer switch is connected to the dimmer switch body A and a mounting frame 1 that has the same appearance. This allows them to be installed in parallel.

The mounting frame 1 is made of die-cast aluminum or the like, and as shown in Fig. 3, the dimmer switch mounting portion 14 is formed by closing the openings for two modules, and the dimmer switch mounting portions 14 are hung vertically from both sides of the remaining opening. A pair of insertion holes 16 are formed in each side plate 15 to form a wiring device attachment portion 1a. Here, the ready-made embedded type wiring device is attached to the wiring device mounting portion 1a by inserting a locking protrusion protruding from the case into the insertion hole 16.
At both ends of this mounting frame 1, insertion holes 11 are bored for screwing the mounting frame 1 into an embedded box embedded in the wall surface, and further, screw holes are provided outside of the insertion holes 11 for mounting the plate frame. 12 are perforated, and L-shaped ears 13 formed on both sides of both ends allow a plurality of mounting frames 1 to be connected laterally to form a multi-mount system.

A body 2 is attached to the back side of the dimmer switch attachment portion 14 of the attachment frame 1. Like the mounting frame 1, the body 2 is also made of die-cast aluminum or the like, and is formed into a box shape with an open top surface, one corner of which is cut out, and the terminal block 5 is attached to this cutout 20. . Terminal block 5
constitute the terminals T, , T2 in Fig. 3,
A terminal body 50 attached to the notch 20 of the body 2, two terminal plates 52 incorporated into the storage recess 50a of the terminal body 50, two lock springs 53 and a release button 54, and the terminal body The terminal cover 51 is attached to the top surface of the terminal body 50, and when the core wire of the @ wire is inserted from the bottom surface of the terminal body 50, the electric wires are connected in a connected manner. An internal connection with a dimming circuit is made by a connecting piece 52a extending in an L-shape from one side of the terminal plate 52 that is pulled out. Note that the terminal body 50 and the terminal cover 51 are made of a hardenable synthetic resin that is resistant to heat. Insertion holes 2a are vertically formed in the three corners of the body 2, and insertion holes 50a are vertically formed in the corners of the terminal body 50 exposed to the outside of the body 2.
is perforated, and the terminal body 5 of the terminal cover 51 is also perforated.
An insertion hole 51a is formed in a portion corresponding to the insertion hole 50a of 0, and the through hole 51a is inserted through these insertion holes 2a, 50a, 51a, and the through hole 14a formed in the dimmer switch mounting portion 14 of the mounting frame 1 is inserted. Insert stopper 90, body 2.
The terminal body 50 and the terminal cover 51 are integrally attached to the mounting frame 1.

The circuit shown in FIG. 4 described above is formed by mounting circuit components on a printed circuit board 20, and only the triac Q1, which generates heat, is soldered to a comb-like connecting portion 20a formed on the printed circuit board 20 afterward. Furthermore, a heat sink 21 is attached to this triac Q1. The heat sink 21 includes a mounting part 21a to which the triac Q1 is mounted diagonally so that the terminal side is higher, and this mounting part 21a.
The fixing part 21b is erected at one end and has a fixing piece 21c formed at the tip, and the body 2 is erected at one end of the mounting part 21a.
It is attached to the body 2 by passing a screw 91 through the insertion hole 2b of the body 2 into the screw hole 21f formed in the side plate 21e, and in this state, the circuit is connected. Printed circuit board 2 with components mounted
0 is housed in the body 2, and the terminals of the triac Q are soldered to the printed circuit board 20. Then, with the body 2 attached to the lower surface of the mounting frame 1, screw the screw 92 into the screw hole 21g of the fixing piece 21C of the heat sink 21 through the insertion hole 14b drilled in the dimmer switch mounting part 14 of the mounting frame 1. The mounting frame 1 and the heat dissipation plate 21 are fixed together.The body 2 has two protruding ribs 2c protruding from the inside to support the mounting portion 21a of the heat dissipation plate 21 from below. In this way, in the dimmer switch of this embodiment, the mounting frame 1 and the body 2 are made of die-cast aluminum or the like, and the heat dissipation plate 2 of the triac Q
By fixing the triac Q1 in contact with the mounting frame 1 and the body 2, the heat dissipation area of the triac Q1 is increased,
The TRIAC Q1 is designed to dissipate heat efficiently: This reduces the temperature rise on the front side of the dimmer switch, which has the advantage of not making the user feel uneasy when setting the dimmer. be. Furthermore, in the case of this embodiment, a heat radiation hole 2d is formed in the bottom plate of the body 2,
This is to prevent heat from accumulating inside the body 2. By the way, the dimmer switch mounting part 14 of the mounting frame 1 has a hole 14C that exposes the operating shaft of the rotary volume VR on the front side, and an operating piece of the switch SW when the volume VR is fully turned to the off side. Hexagonal column-shaped operation button 3 to press
A mounting hole 14d for exposing and attaching the neon lamp Ne to the front side, and a through hole 14e for drawing out the neon lamp Ne to the front side are formed. Here, a neon lamp Ne is inserted into the through hole 14e.
The lamp holder formed on the upper surface of the terminal cover 51 is fitted with the part 31b when the terminal cover 51 is passed through the terminal cover 51. Furthermore, a pair of protruding ribs 14f are formed on the outer side of the through hole 14e. The neon lamp Net is fixed horizontally in the space formed by the projecting rib 14f.In addition, in the dimmer switch of this embodiment, the knob 3
0 to fully increase the dimming state (in other words, when controlling the dimming so that the lighting equipment becomes the darkest), press the operation button 31 with the knob 30 and turn on the switch SW1, The neon lamp Ne is turned on. For this reason, the fitting part 3 that fits into the operation shaft of the volume VR of the knob 30 for the volume VR
Two ribs 30b and 30c are provided concentrically around 0a, and the height of the outer rib 30c is partially increased to form an operating section 30e.
The operation button 31 is to be pressed when the button is fully turned.

In addition, a convex rib 30d is formed on the inner rib 30b as a rotation stopper that comes into contact with a rotation stopper 14h formed on the edge of the hole 14c through which the volume VR is inserted, thereby preventing the knob 30 from being turned too much. That's how it is. In addition, two ribs 30b are provided on the back surface of the knob 30 in this way.

30c, the force applied from the front side can be received by the respective ribs 30b, 30c, and the strength of the knob 30 can be increased.

A cover 3 and a decorative cover 4, which together with the body 2 constitute a case of the dimmer switch main body A, are attached to the front side of the mounting frame 1. The cover 3 is formed with a window 3a that exposes the knob 30 and has a rib 3b around the periphery6.Furthermore, a portion of the mounting frame 1 of the cover 3 corresponding to the fixing portion of the neon lamp Ne is provided with a neon lamp. A light-transmitting window 3c is formed through which the light from the lamp Ne is transmitted. Note that the lamp cover 33 is attached to the light-transmitting window 3C by locking its locking claw 33a to the inner peripheral edge of the light-transmitting window 3c. A pair of fitting pieces 3d are formed on each side of the cover 3 and project downward and have engagement claws formed on the outside of the lower end, and the dimmer switch mounting portion 1
The fitting piece 3d is attached to the mounting frame 1 by engaging the engagement claw of the fitting piece 3d with the fitting part 14g formed in the fitting part 14g.

The decorative cover 4 is formed with a window 4a having the same inner diameter as the outer diameter of the rib 3b of the cover 3.
A transparent window 4b is formed in a portion corresponding to C. In addition,
A lamp cover 41 similar to the transparent window 3c of the cover 3 is also attached to the transparent window 4b of the decorative cover 4. Locking pieces 4c are formed on both sides of the decorative cover 4, and the locking pieces 4C are elastically locked to stepped portions 3e formed on both sides of the cover 3 to be attached to the cover 3. .

When the wiring device B is not attached to the mounting frame 1 with the above-mentioned dimmer switch assembled, a blank chip 8 shown in FIG. 3 is attached to the wiring device mounting portion 1a. This blank chip 8 has a pair of locking protrusions 8a protruding from both sides, and is attached so as to insert and lock the locking protrusions 8a into the insertion hole 16 to close the opening of the wiring device mounting portion 1a. It will be done.

[Effects of the Invention] As described above, the present invention includes a rotary volume that adjusts the dimming state, and a dimmer switch that is connected in series between the lighting equipment and the power source when the volume is fully turned off. Two ribs are provided around the periphery of the fitting part that fits into the control shaft of the knob that is attached to the switch that connects the lamp for position indication, and the knob that is attached to the volume. In addition, the other rib is formed with an operating part that presses the operating piece of the switch when the volume is turned all the way to the off side, and the volume and switch are separate parts. Since the volume and the switch are small and lightweight, the dimmer switch can be made smaller and lighter.Also, the knob is formed with a stopper, which prevents the knob from being turned too much. Furthermore, since the knob rotation prevention and the switch operation part are formed with two ribs provided around the periphery of the fitting part that is fitted to the knob's volume control shaft, these ribs can prevent rotation of the knob. By supporting the knob from behind, you can make it stronger against the force applied from the front.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a knob and a mounting frame according to an embodiment of the present invention, and FIG. 2 is a side view showing the mounted state of the same knob.
FIG. 3 is an exploded perspective view showing the overall configuration of the same as above, and FIG. 4 is a circuit diagram of the dimming circuit same as above. VR is the volume, SW is the switch, Ne is the neon lamp, 30 is the knob, 30a is the fitting part, 30b, 30
30d is a rib, 30d is a convex rib, and 30e is an operating portion. Agent Patent Attorney Ishi 1) Long 7-) Mami T Ryu f? Part I4 Spontaneous writing of medical procedure amendment 1, Indication of the case 1990 Patent Application No. 186151 2, Name of the invention Dimmer switch 3, Person making the amendment Relationship with the case Patent applicant address Oaza Kadoma, Kadoma City, Osaka Prefecture 10411 address name (5
113) Matsushita Electric Works Co., Ltd. Representative Toshio Miyoshi 4, Agent postal code 530 5, Date of amendment order Voluntary statement

Claims (1)

[Claims] (1) A rotary volume that adjusts the dimming state,
A switch that connects a lamp to indicate the position of the dimmer switch in series between the lighting fixture and the power supply when the volume is turned all the way to the off side, and a knob that fits on the volume control shaft of the knob that is attached to the volume. Two ribs are provided around the periphery of the fitting part, one of which forms a rotation stopper that prevents the volume from being turned too much, and the other rib which prevents the volume from turning too far when the volume is fully turned off. A dimmer switch comprising an operating portion for pressing an operating piece of the switch.