JPH0473889A - Light control switch - Google Patents

Abstract

PURPOSE:To improve the appearance of a lug mounting part and suppress the penetration of dust by dividing a lug into an operation part on the front surface side of a cover and a connecting part on the back surface side, forming inserting channels for connecting them on both sides of the lug, and covering the lug with a decorative cover. CONSTITUTION:A lug 30 is divided into an operation part 31 on the front surface side of a cover 3 and a connecting part 32 on the back surface side so that the part exposed on the front surface side of the cover 3 can be thinned as much as possible, and a decorative cover 4 is fitted to the cover 3 so that the frontward projecting amount of the lug 30 makes a small appearance. Inserting channels 3b formed on the cover 3 for connecting the operation part 31 to the connecting part 32 are formed on both sides of the lug 30, and the inserting channels 3b are covered with the decorative cover 4 so that the inserting holes are not exposed on the front surface side. Thus, the appearance of a lug mounting part is improved, and dust is difficult to enter from the inserting channels.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a knob attached to a sliding volume for adjusting the dimming state of a dimmer switch, and its mounting structure.

[Prior Art] Some dimmer switches for controlling the dimming of lighting equipment use a sliding volume as a volume to adjust the dimming state. A slide arm 3b' is bored in the front surface of the cover 3', and the volume and the knob 30' are connected through this slide arm 3b.

[Problems to be Solved by the Invention] However, with the above structure, there was a problem that the knob 30 protruded forward and the slide slide 3b'' was exposed, making it unattractive. There is also the problem that when the slide 3b' is exposed, dirt and the like can get inside through the slide 3b'.

The present invention has been made in view of the above-mentioned points, and its purpose is to provide a dimmer switch that has a good-looking knob mounting part and prevents dust from easily entering the interior through the knob mounting part. It is about providing.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a body in which dimming circuit components such as a sliding volume for adjusting the dimming state are housed, and a cover attached to the body. The case is formed into an oval shape by the decorative cover attached to the front of the cover, and the knob for sliding the volume is attached to the front side of the cover, with connecting pieces whose tips hang downward protruding from both sides. It consists of an operating section that is attached to the back side of the cover, and a connecting section that is attached to the back side of the cover and connects the operating section and the volume. A window is formed on the cover and exposes the operation part of the knob of the decorative cover, and is formed in a shape that closes the upper part of the insertion groove.

[Function] As described above, the present invention divides the knob into the operation part on the front side of the cover and the connecting part on the back side, so that the part exposed on the front side of the cover can be made as thin as possible. A decorative cover is attached to the knob to make the amount of forward protrusion of the knob appear smaller, and insertion grooves formed in the cover for connecting the operating section and the connecting section are formed on both sides of the knob. By covering this insertion groove with a decorative cover, the insertion groove is prevented from being exposed on the front side, improving the appearance of the knob attachment part, and the insertion groove is also prevented from being exposed on the front side by the decorative cover. This makes it difficult for dirt and the like to enter through the insertion groove.

[Example code] An embodiment of the present invention is shown in FIGS. 1 to 3.

The dimmer switch of the present embodiment connects each of the terminals TT2 shown in FIG. +, triac Q connected to both ends of T2
, to control the power supplied to the lighting equipment (in other words, by controlling the phase), the lighting equipment is dimmed. 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 C1, and a Zener diode ZD, ZD2, and the amount of dimming is controlled by setting the volume VR. It is adjustable. In addition, in this dimming switch Sochi, a switch SW is connected in series with the triac Q.
Connect + and set the volume to VR.

(in other words, when the lighting equipment is controlled to its darkest state), the switch SW + is turned off, and when this switch SW1 is turned off, , terminal T1.
A neon lamp Ne is connected to both ends of T2 via a current limiting resistor R2 and is turned on to indicate the installation location of the dimmer switch. Also, at both ends of the triac Q1,
A filter circuit 7 consisting of a choke coil L capacitor C, , C and a resistor R2 is connected to prevent noise generated by switching of the thyristor Q2 from being output.

Figure 2 shows the appearance of this dimmer switch. The dimmer switch of this example has external dimensions that are 2 times the size of a ready-made embedded wiring device.
A dimmer switch main body A formed into individual module dimensions;
It has a structure that combines a ready-made l-connected mounting frame used when lining up three ready-made wiring devices vertically and burying them in a wall etc. and a mounting frame 1 that has the same appearance.
The mounting frame 1 is designed so that one module of the wiring fixture B can be installed in parallel with the dimmer switch body A.

The mounting frame 1 is made of die-cast aluminum or the like, and as shown in Fig. 1, 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 openings. 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 projection protruding from the case into the insertion hole 16.

At both ends of the mounting frame 1, insertion holes 1 for screwing the mounting frame 1 into the embedded box embedded in the wall surface are bored, and furthermore, holes 1 for mounting the plate frame on the outside of the insertion holes 11 are provided. A screw hole 12 is bored, and L-shaped ears 13 are formed on both sides of both ends so that a plurality of mounting frames 1 can be connected laterally to form a multiple mounting 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.One corner is cut out, and the terminal block 5 is attached to the second notch 20. There is. 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 upper surface of the terminal body 50, and when the core wire of the electric wire is inserted from the lower surface side of the terminal body 50, the electric wire is connected in an interlocking manner. An internal connection with the dimming circuit is made by a connecting piece 52a extending in an L-shape from one side of the terminal plate 52. 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. 3 described above is formed by mounting circuit components on a printed circuit board 20, and only the triac Q, 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 Q. 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 consists of a side plate part 21e that contacts the inner surface of one end side, and is housed in the body 2 by passing a screw 91 through the insertion hole 2b of the body 2 into a screw hole 21f formed in the side plate part 21e. Printed circuit board 2 with circuit components mounted in the state
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. At the same time, the mounting frame 1 and the heat sink 21 are fixed. Note that two protruding ribs 2c are provided inside the body 2 to support the mounting portion 21a of the heat sink 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
1 in contact with the mounting frame 1 and the body 2, the heat dissipation area of the triac Q is increased,
Triac Q1 is designed to dissipate heat efficiently, which reduces the rise in temperature on the front side of the dimmer switch, which has the advantage of not causing anxiety to the user when setting the dimmer. . Furthermore, in the hole 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 portion 14 of the mounting frame 1 is provided with a slide 14c for exposing the control piece for the volume VR+ on the front side, a groove 14d for exposing the control piece for the switch SW1 on the front side, and a neon lamp Ne. A through hole 14e is formed to be drawn out to the front side. Here, when the neon lamp Ne is passed through the through hole 14e, the lamp holder formed on the upper surface of the terminal cover 51 is configured so that the portion 31b is fitted into it, and a pair of protrusions are provided on the outer side of the through hole 14e. rib 1
4f, and the lamp holder has a portion 31b and a protruding rib 14f.
The neon lamp Ne is fixed horizontally within the space formed by the.

A cover 3 and a decorative cover 4, which together with the body 2 constitute the gate of the dimmer switch body A, are attached to the front side of the mounting frame 1, and have a structure in which a knob 30 for operating the volume VR is attached to the cover 3. There is. The knob 30 is connected to an operating section 31 attached to the front side of the cover 3.
and a volume VR attached to the back side of cover 3,
The cover 3 is made up of a connecting part 32 that connects the operating piece and the operating part 31, and is designed so that the front side of the cover 3 can be made as thin as possible. A protrusion 31a is formed at the center of the front surface of the operating section 31, on which the fingertips are hung, and connecting pieces 31b that hang downward from both sides are protruded, and both sides of the flat plate section 32a of the connecting section 32 A connecting portion 32c is formed in each of the flat plate portions 32a, and a fitting portion 32b protrudes from the lower surface of the flat plate portion 32a, into which the operation piece of the volume VR is inserted and fitted. A frame-shaped convex rib 3a in which the operating section 31 is housed is formed on the front surface of the cover 3, and an insertion groove 3b through which the connecting piece 31b of the operating section 31 is inserted through the inner edge of both sides of the convex rib 3a.
When the connecting piece 31b protruding to the back side through the insertion groove 3b is inserted into the connecting hole 32c of the connecting part 32, the fitting protrusion 32d protruding from the inner surface of the connecting part 32a connects. By fitting into the fitting hole 31c of the piece 31b, the operating portion 31 and the connecting portion 32 are connected, as shown in FIG. 4. However, in the case of FIG. 4, instead of forming the fitting protrusion 32d in the coupling type 32c,
A case is shown in which a fitting protrusion 32d is formed on the side surface of the flat plate portion 32a, and the connection structure between the operating portion 31 and the connecting portion 32 may be a structure other than the above-mentioned two structures. Furthermore, a light transmitting window 3c is formed in a portion of the mounting frame 1 of the cover 3 corresponding to the fixing portion of the neon lamp Ne to transmit the light of the neon lamp Ne. 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 both sides of the cover 3, each of which protrudes downward and has an engaging claw formed on the outside of the lower end. It is attached to the mounting frame 1 by engaging the engagement claws of the mating piece 3d.

A window 4a for exposing the operation part 31 of the knob 30 is formed in a portion of the decorative cover 4 corresponding to the convex rib 3a of the cover 3, and a transparent window 4b is formed in a portion corresponding to the transparent window 3c of the cover 3. It is formed.

The width of the window 4a in both directions is set to such a width that the decorative cover 4 covers the upper part of the connecting piece 31b of the operation section 31.
This prevents the insertion groove 3b of the cover 3 from being seen from the front side of the decorative cover 4, as shown in FIG. Therefore, it is possible to prevent debris and the like from entering the insertion groove 3b, and it is possible to improve the appearance. Furthermore, a lamp cover 41 similar to the transparent window 3c of the cover 3 is 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. .

In addition, in the case of the dimmer switch of this embodiment, the knob 30
When you slide the button and turn the lighting state all the way (in other words, when you control the lighting so that it is at its dimmest level)
, SW, are turned on at the lower surface of the flat plate portion 32a of the connecting portion 32, and the neon lamp Ne is turned on.

Assemble the above dimmer switch and attach wiring fixture B to mounting frame 1.
When the wiring device B is attached to the mounting frame 1, the external appearance is as shown in FIG.
Attach it to the wiring equipment attachment part 1a. This blank chip 8 has a pair of locking protrusions 8a protruding from both sides.
This locking protrusion 8a is inserted and locked into the insertion hole 16 to close the opening of the wiring device attachment portion 1a.

[Effects of the Invention] As described above, the present invention includes a body in which dimming circuit components such as a sliding volume for adjusting the dimming state are housed;
The case consists of a cover that is attached to the body and a decorative cover that is attached to the front of the cover, and the knobs for sliding the volume are attached to the front side of the cover and have their respective tips hanging downward. It consists of an operating part with pieces protruding from both sides, and a connecting part attached to the back side of the cover that connects the operating part and the volume.The connecting piece of the operating part is inserted through the operating part and the connecting part An insertion groove is formed in the cover that connects the operation part of the knob of the decorative cover, and a window that exposes the operation part of the knob of the decorative cover is formed in a shape that closes the upper part of the insertion groove. Since it is divided into a connecting part on the back side, the part exposed on the front side of the cover can be made as thin as possible, and since a decorative cover is attached to the cover, the amount of forward protrusion of the knob can be made to appear smaller. In addition, insertion grooves for connecting the operation part and the connecting part are formed on both sides of the knob, and these insertion grooves are covered with decorative covers, so the insertion grooves are not exposed on the front side and the knob can be easily inserted. This has the advantage of improving the appearance of the mounting part. Furthermore, since the insertion groove is not exposed on the front side by the decorative cover, there is an advantage that dirt and the like are less likely to enter through the insertion groove.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a front view showing the appearance of the same after assembly, Fig. 3 is a circuit diagram of the dimming circuit, and Fig. 4 is a cross-section of the knob mounting part. Figure 5 is a front view of the knob attachment part, and Figure 6 (a). (b) is a front view and a side view showing the structure of a conventional knob attachment part. 2 is the body, 3 is the cover, 3b is the insertion groove, 4 is the decorative cover, 4a is the window, VR is the volume, 30 is the knob, 3
1 is an operating section, 31b is a connecting piece, and 32 is a connecting portion. Agent Patent Attorney Ishi 1) Long Nananagi #: De-kumo? Sugar -19 and -5a% ≦ Thickness = Suppression 2 S Encounter □ Beak Zeon and ° - 22 Go 2 Ni - C1 Ema = > τZari Figure 2 Figure 113

Claims (1)

[Claims] (1) The case consists of a body that houses dimming circuit components such as a sliding volume that adjusts the dimming state, a cover that is attached to the body, and a decorative cover that is attached to the front of the cover. , the knob for sliding the volume is attached to the front side of the cover and has connecting pieces protruding from both sides with the ends of each piece hanging downward, and the knob is attached to the back side of the cover to connect the operation unit and the volume. an insertion groove is formed in the cover, through which the connection piece of the operation part is inserted to connect the operation part and the connection part, and a window exposing the operation part of the knob of the decorative cover is inserted. A dimmer switch formed in a shape that closes the upper part of the groove.