JPH1187072A - Dimmer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dimmer which can be successively provided in line with embedded wiring accessories. SOLUTION: A case 1 is constituted by connecting a body 10 and a cover 20. The case 1 is mounted on a mounting frame 110 for flush type wiring accessories fixed to an execution surface, a rear end part of the case 1 is set up in a shape buried in the execution surface. In a side surface of the case 1, a lock pawl 25 engaged with a hold groove formed in the mounting frame 110 is provided to protrude. The case 1 is formed in the dimension able to be mounted to maximum three in the mounting frame 110. In the case 1, a volume VR for setting a dimming level of an illumination load is mounted to be stored, in a front surface of the case 1, an operating knob 60 for varying a resistance value of the volume VR is exposed. In a side surface of the case, a heat radiating slit 17 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimmer which is constructed so as to be partially embedded in a construction surface such as a wall surface and which is operated so as to light a lighting load at a desired dimming level. .

[0002]

2. Description of the Related Art A conventional dimmer of this type includes a dimmer setting device for setting a dimming level of an illumination load such as an incandescent lamp. As the dimming setting device, a rotary volume is used, and the dimming control of the lighting load is performed by changing the resistance value of the volume by operating the operation knob exposed from the front of the case.

[0003]

By the way, the dimmer includes a triac in the case as power control means connected in series to the lighting load and controlling power supplied to the lighting load. A series circuit with the triac is connected to a commercial power supply, and a control signal is applied to the gate of the triac to perform phase control, whereby power supplied to a lighting load is adjusted to perform dimming.

However, in order to prevent the case from becoming hot due to the heat generated by the triac, the embedded dimmer has a metal mounting frame attached to the embedded box and the case integrated. And a special mounting frame is required,
It was necessary to secure an installation space separately from other wiring devices such as a switch and an outlet, and there was a problem that it took time and effort to perform the installation.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a dimmer that can be connected to an embedded wiring device.

[0006]

According to a first aspect of the present invention, a dimming setting device for setting a dimming level of a lighting load and an operation knob of the dimming setting device are provided on a front surface. An exposed case, wherein the case can be attached to a mounting frame for a buried type wiring device by connecting a maximum of three cases so that the front surface of the case is exposed through an opening window of the mounting frame. And is formed in a size corresponding to one of the embedded wiring devices described above, and can be connected to wiring devices such as outlets and switches in the mounting frame.

According to a second aspect of the present invention, in the first aspect of the present invention, the case comprises a rear end side body, a front end side cover,
It is composed of a pair of substantially U-shaped assembly frames fitted from the front side of the body so as to connect the body and the cover, and has a mounting portion that can be mounted on the mounting frame. It can be easily connected to wiring devices such as outlets and switches.

According to a third aspect of the present invention, in accordance with the second aspect of the present invention, the work can be performed by the same construction method as other standardized wiring devices such as outlets and switches, and the construction work is facilitated for a construction company. . According to a fourth aspect of the present invention, in the first aspect of the present invention, the case includes a rear end side body and a front end side cover, and an assembly claw protruding from an outer surface of the body and an assembly piece protruding from the cover. The body and the cover are connected by the concave and convex engagement with the provided assembly holes, and locking claws are locked on both sides of the cover so as to be locked by the holding portions formed on the mounting frame. The number of parts can be reduced as compared with the inventions of the second and third aspects, and the manufacturing process can be simplified and the cost can be reduced.

The invention according to claim 5 is the invention according to claims 1 to 4.
In the invention, the case has a pair of terminal plates to which the wires inserted from the pair of wire insertion ports formed in the case are respectively connected, and a pair of locking springs which press-connect the wires to the respective terminal plates. A release button is provided to deflect both locking springs in the pressure release direction to disconnect the connection between each terminal plate and each wire, and a part of the releasing button is interposed between the locking springs. As compared with the screw type terminal structure, the safety in construction can be secured, and the wires can be connected easily and securely, so that uniform connection and saving of construction can be achieved. The contact with the terminal can be prevented by the release button, and the insulation can be improved.

[0010] The invention of claim 6 is the first to fifth aspects of the present invention.
In the invention of the above, a switch for turning on and off the lighting load is provided in the case, and a switch is pressed at the rear of the operation knob so as to turn off the lighting load when the switch is operated to a predetermined position in a direction to lower the dimming level. Since the pressing portion is protruded, the lighting load is turned on and off and light is adjusted by operating the operation knob.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, a concave portion is formed in a front portion of the pressing portion, and an operation knob is operated to the predetermined position on a rear surface side of the cover. Is provided with a projection that engages with the concave portion so as to be removably engaged, so that a click feeling can be obtained when the operation knob is operated to a predetermined position. According to an eighth aspect of the present invention, in the first to seventh aspects, the case includes a power control element for controlling power supplied to the lighting load, and a radiator plate attached to the power control element. Since the heat sink is formed in a substantially U shape, it is possible to suppress a rise in temperature of the case.
The area of the heat radiating plate can be made larger than that of the letter-shaped radiating plate, and the heat radiating effect can be enhanced.

According to a ninth aspect of the present invention, in the invention of the eighth aspect, since a plurality of projections which come into contact with the heat radiating plate are provided on the inner side of the rear surface of the case, the gap is provided between the inner side of the case rear surface and the heat radiating plate. Since a gap is generated, a rise in temperature at the rear surface of the case can be suppressed. According to a tenth aspect of the present invention, in the first to ninth aspects of the present invention, the case has heat dissipation slits formed on both side surfaces substantially parallel to the longitudinal direction. By forming slits on both sides substantially parallel to the longitudinal direction, the number of slits can be increased as compared to the case where the slits are formed on a surface orthogonal to the longitudinal direction of the case, and the heat dissipation can be improved. It is possible to further increase.

According to an eleventh aspect of the present invention, in the tenth aspect of the present invention, a waterproof groove is formed at an upper portion of the rear surface of the case so as to be inclined downward and obliquely rearward at a position above the slit. Water droplets and the like can be prevented from entering through the slit. According to a twelfth aspect of the present invention, in the invention of the fourth to eleventh aspects, since the cover and the body are fitted to each other, the impact resistance of the case against falling or the like can be improved.

According to a thirteenth aspect of the present invention, in the sixth to twelfth aspects, the dimming setting device includes a rotary volume and a flange at a rear portion which abuts on the inside of the front surface of the case. The operation knob is inserted and fitted, and an elastic body is interposed between the distal end surface of the operation shaft and the operation knob. Since the operation knob can be prevented from rattling against the case, and the operation load of the operation knob is kept substantially constant, the operation piece of the switch can be surely pushed by the pressing portion. Water droplets can be prevented from entering through a gap between the operation knob and the case.

According to a fourteenth aspect of the present invention, in the first to twelfth aspects, the dimming setting device comprises a slide type volume and an operation knob connected to an operation shaft of the volume. Therefore, the dimming level can be easily perceived as compared with the thirteenth aspect. According to a fifteenth aspect, in the fifth aspect, the terminal comprising the locking spring and the terminal plate and the release button are disposed at one end in a longitudinal direction of the case. Since a recess for accommodating the electric wire is formed on the rear surface of the one end, a wide space behind the electric wire insertion port can be secured.

A sixteenth aspect of the present invention includes a dimming setting device for setting a dimming level of a lighting load, and a case in which an operation knob of the dimming setting device is exposed on a front surface, and the case is an embedded type. Equivalent to two embedded-type wiring devices of unit size that can be attached to a mounting frame for wiring devices up to a maximum of three in a form where the front surface of the case is exposed from the opening window of the mounting frame. It is characterized by being formed in dimensions, it eliminates the need for a dedicated mounting frame as in the past, and can be connected to other wiring devices such as switches and outlets in the mounting frame for the wiring device. It is not necessary to provide a separate installation space, and the construction is facilitated. In addition, since a dedicated mounting frame is not required, cost reduction can be achieved.

According to a seventeenth aspect of the present invention, in the sixteenth aspect, the case includes a rear end side body and a front end side cover, and an assembly claw protruding from an outer surface of the body and protruding from the cover. Since the body and the cover are connected by the concave and convex engagement with the assembly holes provided in the assembly piece, the body and the cover can be easily connected without using a separate member.

According to an eighteenth aspect of the present invention, in the invention of the sixteenth aspect or the seventeenth aspect, locking claws which are locked to holding portions formed on the mounting frame are provided on both side surfaces of the case. Therefore, it can be constructed by the same construction method as a wiring device such as an outlet or a switch, and construction can be easily performed by a construction company. According to a nineteenth aspect of the present invention, in the invention of the sixteenth to eighteenth aspects, the case is provided with a heat-dissipating slit on the rear surface, so that the temperature inside the case can be suppressed from rising.

According to a twentieth aspect of the present invention, in the invention of the seventeenth to nineteenth aspects, a rib which is substantially perpendicular to the front-rear direction is provided at a rear portion of the operation knob, and an illumination load is provided on a rear surface side of the cover. Since the engagement groove with which the rib is engaged when the operation knob is operated to the off position is formed, a click feeling is obtained when the operation knob is operated to the above position, and the operation feeling is good. In addition, the user can surely recognize that the operation has been performed to the position where the lighting load is turned off.

According to a twenty-first aspect of the present invention, in the seventeenth to twentieth aspects of the present invention, the power control element for controlling the power supplied to the lighting load, and a radiating plate attached to the power control element are provided in the case. An engaging claw protrudes from a key point on an outer peripheral portion of the heat radiating plate, and an engaging protrusion for engaging the engaging claw of the heat radiating plate is provided on the inner surface of the body. Can be easily fixed to the body.

According to a twenty-second aspect of the present invention, in the twenty-first aspect, a positioning hole for positioning is formed in the heat radiating plate, and a positioning rib inserted into the positioning hole protrudes inside the rear surface of the body. Therefore, the positioning of the heat sink can be performed without using screws or the like. According to a twenty-third aspect of the present invention, in the invention of the twenty-first or twenty-second aspect, a plurality of small projections that come into contact with the radiator plate protrude inside the rear surface of the case. Since there is a gap between the cases, heat dissipation is improved, and a rise in temperature on the rear surface of the case can be suppressed.

According to a twenty-fourth aspect of the present invention, in the twenty-first to twenty-third aspects, the radiator plate is appropriately bent along the inner peripheral surface of the body, so that the area of the radiator plate is increased. And the heat radiation effect can be enhanced. According to a twenty-fifth aspect of the present invention, in any of the sixteenth to twenty-fourth aspects, the dimming setting device includes a slide type volume and an operation knob connected to an operation shaft of the volume. The light level can be easily perceived sensuously.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) The dimmer of the present embodiment will be described with reference to FIGS. Case 1 of dimmer of this embodiment
Is attached to the mounting frame 110 for the embedded wiring device.
A size corresponding to one embedded wiring device having a unit size set so that a maximum of three units can be connected and mounted in such a manner that the front surface of the case 1 is exposed through the opening window 111 of No. 0. Is formed. The case 1 is made of a thermosetting synthetic resin (for example, made of melamine phenol resin) and has a rectangular parallelepiped body 10 with an open front surface.
It is formed by combining a cover 20 which is made of an elastic synthetic resin (for example, polybutylene terephthalate resin = PBT resin) and has a rectangular parallelepiped shape with an open rear surface.

An assembling claw 11 is protruded from both upper and lower end surfaces of the body 10 in the longitudinal direction (up and down in FIG. 3). On the other hand, shoulders 21 project from both upper and lower ends of the cover 20, and assembly pieces 22 project from the rear edge of each shoulder 21 toward the body 10. Each assembly piece 22 has an engagement hole 22a that engages with the assembly claw 11 provided on the body 10 in an uneven manner.
Are formed. A guide surface 11a is formed at the front end of the assembly claw 11 such that the guide surface 11a is inclined so that the amount of protrusion from the body 10 decreases toward the front. Therefore, when assembling the cover 20 to the body 10, the assembly piece 22 bends along the guide surface 11 a, and the engagement hole 22 a provided in the assembly piece 22 is finally fitted to the assembly claw 11, and the The cover 20 is joined. As described above, since the assembly piece 22 needs to be bent, the cover 20 is formed of an elastic synthetic resin.

Here, when the assembly piece 22 is molded, a plurality of resin flows are formed and merge near the tip end of the assembly piece 22, so that a weld line is easily formed at the tip end of the assembly piece 22. As described above, since the assembly piece 22 engages with the assembly claw 11 using the bending as described above, there is a problem that the weld line is easily broken at the time of bending if a weld line is formed. Therefore, in the present embodiment, the portion where the weld line is formed has a reinforcing portion 2 having a partially increased thickness.
2b is formed to prevent the assembly piece 22 from breaking.
A reinforcing piece 22c extends forward from the rear edge of the engaging hole 22a. The assembly claw 11 provided on the body 10 is
The rear end is formed in a forked shape so as to engage with 2c. Therefore, the thick reinforcing portion 22b is also formed on the reinforcing piece 22c, and the assembly piece 2 formed by forming the weld line is formed.
2 can be more reliably prevented.

The shape of the engaging hole 22a is not limited to the above-mentioned shape. For example, as shown in FIG. 13, two engaging holes 22a may be formed in the assembly 22. In this case, May be provided by projecting two assembling claws 11 on both upper and lower end surfaces of the body 10. Further, a rectangular engaging hole 22a may be formed as shown in FIG. Body 10
The internal space is divided into a terminal storage chamber 13 and a circuit storage chamber 14 by a partition wall 12 provided at an intermediate portion in the longitudinal direction. A positioning projection 10d protruding forward is provided at an appropriate position on the peripheral wall of the body 10, and a positioning recess 10c is formed. That is, in the present embodiment, the body 10
When the cover and the cover 20 are connected, the positioning protrusion 10
d engages with a recess 20d formed in the peripheral wall of the cover 20, and a projection (not shown) projecting rearward from the peripheral wall of the cover 20 engages with the positioning recess 10c. The rattling can be prevented, and the impact resistance against falling or the like can be improved.
As shown in FIG. 3, when the distances from the substantially central position in the longitudinal direction of the body 10 to the upper and lower steps of the positioning protrusion 10d are H ₁ and H ₂ , respectively, H ₁ ≠ H.
_{If 2} , the reverse assembly of the cover 20 to the body 10 at the time of assembly can be prohibited.

A pair of terminals 30, each of which is a quick connection terminal, is housed in a terminal storage chamber 13 formed in the body 10 through the partition wall 12. The terminal 30 includes a terminal plate 35 and a locking spring 36.
The wire insertion port 15 (see FIGS. 5 and 6)
And a contact piece 36a which bites into the electric wire inserted into the electric wire inserted thereinto to prevent it from coming off and a contact piece 36a which elastically contacts the electric wire. That is, the wire insertion port 15 is formed on the rear wall of the body 10 so that the wire can be introduced between the locking spring 36 and the terminal strip 35. This wire insertion port 15
Between the lock spring 36 and the terminal plate 35,
When the electric wire is inserted from the 6a side, the electric wire is pinched between the terminal plate 35 by the spring force of the contact piece 36a and the locking piece 36a, and the locking piece 36b bites into the electric wire, so that the electric wire cannot be pulled out. . As described above, since the connection can be performed simply by inserting the electric wire into the electric wire insertion port 15, the connection operation is facilitated as compared with the case where a screw terminal or the like is used.

The terminal lock chamber 13 has a double locking spring 3.
A release button 37 made of a thermosetting resin (for example, made of urea resin) is provided so as to straddle 6. The release button 37 is in contact with the lock piece 36b of the both lock springs 36, and the part where the release button 37 abuts on the lock piece 36b is that the lock piece 36b is the terminal piece 35.
Is shifted from the portion where the electric wire is held. here,
In this embodiment, the insulating piece 3 is moved forward from the middle of the release button 37 so that a part of the release button 37 is interposed between the two terminals 30.
7a is integrally protruded, so that the electric wire inserted from the electric wire insertion port 15 has a terminal 30 different from the corresponding terminal 30.
Can be prevented from coming into contact with each other, and the insulation between the terminals 30 can be improved. An operation hole 16 (see FIG. 5) is formed in the rear wall of the body 10 at a position corresponding to the release button 37, and the release button 37 is pressed by inserting a tip of a flathead screwdriver or the like into the operation hole 16. Thereby, the locking piece 36b biting into the electric wire is bent from the electric wire in the direction of releasing the pressure contact so that the electric wire can be pulled out. The terminal plate 35 is provided with a connection piece 35a for mounting on a first printed board 51 described later.

In the circuit storage chamber 14, a choke coil L mounted on the first printed board 51 and a second
The printed board 52 and the heat radiating plate 40 are provided. Here, each of the printed boards 51 and 52 is a printed board block 5.
The first printed board 51 and the second printed board 52 are electrically connected by a plurality of lead wires 57 (see FIG. 6). The connection piece 35a of the above-mentioned terminal board 35 is inserted into the connection hole 51b and soldered to 51. The printed board block 50 has a circuit section as shown in FIG. Between the terminals 30, a series circuit of an illumination load (not shown) such as an incandescent lamp and a commercial power supply (not shown) is connected by the above-mentioned electric wire.

Further, between both terminals 30, there is provided a micro
Tria as power control element via switch SW
Q₁And a choke coil L forming a noise filter
Is inserted in this series circuit.
Capacitor C which constitutes a noise filter together with₁
Are connected in parallel. Triac Q₁The capacitor
C_TwoAnd volume VR and resistance R₁Series circuit with
Connected to the capacitor C _TwoSeries circuit with the volume VR
Zener diode ZD₁, ZD_TwoConnected in series
Have been. The capacitor C_TwoAnd volume VR
Connection point and triac Q₁Between the trigger element and
Diac Q_TwoIs inserted, and the potential of the connection point becomes
Diac Q_TwoWhen the breakover voltage of
Iac Q₁Is triggered and turned on. Triac
Q₁Once turned on, the voltage waveform of the commercial power supply becomes zero next time
Keep on until the cross point is reached. That is, commercial
Diac Q every half cycle of power supply voltage waveform_TwoBy
Trigger and then remain on until the zero-cross point.
One. Therefore, the resistance value of the volume VR is adjusted.
Save capacitor C_TwoTerminal voltage is diac Q_TwoBu
By adjusting the time to reach the breakover voltage
Triac Q₁The ignition period can be adjusted
Light loads can be lit at the desired dimming level
It is. The choke coil L is covered with a coil cover.
By doing so, insulation is maintained. Also, both terminals
Between 30, there is a surge absorber as a surge absorbing element
ZNR is connected.

The volume VR is a rotary type, and an operation knob 60 is fitted to an operation shaft protruding forward. The operation knob 60 has a flange 62 at the rear, and
0 is inserted from the rear into a circular hole 24 formed substantially at the center of the front surface of the O. Here, an elastic body 66 (for example, made of neoprene rubber) is interposed between the distal end surface of the operation shaft of the volume VR and the operation knob 60, and a gap is provided between the cover 20 and the operation knob 60. To prevent rattle of the operation knob 60 with respect to the cover 20,
It is possible to prevent water droplets and the like from entering the case 1 through the through hole. The volume VR and the operation knob 60 constitute a light control setting device.

The dimming level can be known from a display provided on the front of the cover 20 around the operation knob 60 and the degree of rotation of the operation knob 60. By the way, the operation knob 60
The micro switch SW (FIG. 1) is used to turn off the illumination load when the operation knob 60 is operated to a predetermined position.
A pressing portion 63 that presses the operation piece of FIG. Therefore, when the operation knob 60 is rotated in a direction to lower the dimming level and is operated to a predetermined position, the operation piece of the micro switch SW is pressed by the pressing portion 63, the micro switch SW is turned off, and the illumination load is turned off. . That is, by operating the operation knob 60, the lighting load is turned on and off and light control is performed. In this embodiment, as described above, the rattle of the operation knob 60 with respect to the cover 20 is prevented, and the operation load of the operation knob 60 is kept substantially constant.
The operation piece of W can be reliably pressed by the pressing portion 63.

A V-shaped recess 63a is formed at the front of the pressing portion 63, and at the rear side of the cover 20, an engagement projection engaging and disengaging with the recess 63a is formed at a position corresponding to the predetermined position. (Not shown), the operation knob 60 is provided.
Is operated to the predetermined position, a click feeling can be obtained. By the way, the triac Q ₁ is the heat radiating plate 40
And then soldered to the second printed circuit board 52. Radiating plate 40 has a substantially U-shape, consisting of a fixing piece 40a of triac Q ₁ is fixed, the side pieces 40b projecting respectively from both ends of the fixing piece 40a. The side piece 40b has a notch 52 of the second printed board 52.
A protruding piece 40c positioned at a is protruded. The triac Q ₁ is attached to the fixing piece 40 a of the heat sink 40 by a mounting screw 75. Note that 76 in Fig. 1 washer, 41 screw hole mounting screw 75 is screwed, 71a is an insertion hole mounting screw 75 is inserted, 52b is a second in order to connect the terminal triac Q ₁ These are holes formed in the printed board 52. In the present embodiment, by forming the heat radiating plate 40 in a substantially U-shape, the area of the heat sink as compared with the case in which the shape of the heat radiating plate into a substantially L-shape can be increased, the heat radiation efficiency of the triac Q ₁ Because it is often done,
There is an advantage that the rise of the temperature on the front side of the dimmer can be suppressed, and the user does not feel uneasy when performing the dimming setting. Further, in the present embodiment, since a plurality of projections 10a (see FIG. 6) protrude inside the rear surface of the body 10, a gap is generated between the rear surface of the body 10 and the fixing piece 40a of the heat sink 40. The temperature rise on the rear surface of the body 10 can be suppressed.

Further, in the present embodiment, since a plurality of heat-dissipating slits 17 are formed on both sides parallel to the longitudinal direction of the body 10 for communicating the inside and outside of the body 10, heat is hardly trapped inside the body 10. Has become. Here, by forming the slits 17 on both side surfaces substantially parallel to the longitudinal direction of the body 10, the number of the slits 17 can be relatively increased.

In the present embodiment, a waterproof groove 18 (see FIG. 5) is formed in the upper part of the rear surface of the case 1 at a position above the slit 17 and is inclined obliquely rearward. Water droplets and the like can be prevented from entering the inside through the slit 17. By the way, the above-mentioned case 1 is attached to a plate 100 to be described later, and a pair of locking claws 25 is projected from a shoulder 21 of the cover 20 for coupling to the plate 100.
An inclined surface 25a is formed at the front end of the locking claw 25 such that the amount of protrusion from the shoulder 21 decreases toward the front.

In order to construct the dimmer having the above-described configuration, the plate 100 shown in FIGS. 1, 9 and 10 is used.
The plate 100 is provided with a mounting frame 110 for holding the case 1.
And a decorative plate 120 that covers the mounting frame 110 and has a good appearance. The mounting frame 110 is made of synthetic resin or metal. The mounting frame 110 made of synthetic resin has an insulating property, and a pair of frame pieces 113a and 113b.
The left end portion and the right end portion are continuously and integrally connected to each other by a horizontal piece 112 to form a rectangular frame having a rectangular opening window 111 at the center thereof for exposing the front surface of the case 1. At the rear side of both sides along the longitudinal direction of the opening window 111, a strip-shaped fixed beam portion 114 is respectively provided.
And the movable beam 115 are provided so as to face each other.

The movable beam portion 115 is continuously and integrally connected to the frame piece 113b via connecting portions 116 extending in the longitudinal direction of the movable beam portion 115 at both ends in the longitudinal direction. Bridge portion 117 in a direction orthogonal to portion 115
Are connected to the frame 113b continuously and integrally. The portions between the connecting portions 116 and the bridge portions 117 and between the two bridge portions 117 are slits 118a to 118c penetrating from front to back. The synthetic resin forming the mounting frame 110 has flexibility, and the movable beam 115 and the connecting part 116 are flexible. Slits 11 on both sides
8a and 118c are formed in a substantially L-shape, and the slit 118b in the middle is formed in a straight line. Frame piece 113b
In the vicinity of each bridge 117, the bridge 1
Slots 119 penetrating from the front and back are provided so that the movable beam portion 115 is also flexible at a portion corresponding to 17.

On the other hand, the fixed beam 114 and the movable beam 11
5, on one surface facing the opening window 111, holding grooves 114 a and 115 a (FIG. 11) also serve as holding portions that engage with the engaging claws 25 protrudingly provided on each of the upper and lower end surfaces of the case 1.
3) are provided at equal pitches for each three pairs. Therefore, the locking claw 25 provided on the case 1 is
a, 115a, the front of the case 1 is exposed from the opening window 111, and the case 1 is attached to the mounting frame 110.
Can be attached. In addition, the case 1 has the mounting frame 11.
At the bases of the fixed beam portion 114 and the movable beam portion 115, contact portions 114d and 115d that contact the front surface of the shoulder portion 21 of the case 1 are formed so as not to fall forward from zero (see FIG. 11). That is, the front surface of the shoulder portion 21 is
4d, 115d, and the rear surface of the locking claw 25 is
14a and 115a, the case 1
Is attached to the mounting frame 110.

Here, the fixed beam 114 and the movable beam 115
At each end portion on one surface facing the opening window 111,
When the locking claws 25 of the case 1 are introduced into the holding grooves 114a and 115a from the rear surface side of the mounting frame 110, the distance between the locking claws 25 is set closer to the distal end to guide the locking claws 25 to the holding grooves 114a and 115a. Guide portions 114b and 115b are provided as inclined surfaces that are inclined so as to expand (see FIG. 11).
To attach the case 1 to the attachment frame 110, see FIG.
(A) As shown in FIG.
5 is engaged with the holding groove 114a of the fixed beam portion 114, and the front end of the case 1 is substantially aligned with the opening window 111 as shown in FIG. 11, the locking claw 25 protruding from the lower surface of the case 1 is driven into the holding groove 115 a by the inclined surface 25 a and the guiding portion 115 b while bending the movable beam portion 115, and as shown in FIG. Locking claw 25 with holding groove 11
5a can be easily engaged.

Since the connecting portion 116 is provided on the extension of the movable beam 115 as described above, even if a pressing force acts on the case 1 from the front to the rear, the movable beam 115 is opened. The locking claw 25 of the case 1 does not come off from the holding groove 115a by bending so as to fall to the window 111 side. Thereby, the mounting strength of the case 1 to the mounting frame 110 can be improved.

On the other hand, the base of the fixed beam portion 114 is provided with an instrument removal hole 114c penetrating through the front and back of the mounting frame 110 between each pair of adjacent holding grooves 114a. In the state where it is attached to the device, the tip of a driver or a jig dedicated to removal is inserted into the device removal hole 114c.
And the case 1 is moved to the movable beam portion 115 at the tip of the jig.
When it is pushed to the side, the movable beam 1 with a slight force due to the principle of leverage
15 can be bent, and the holding groove 1 on the fixed beam 114 side can be bent.
The case 1 can be detached from the mounting frame 110 by releasing the engagement between the engaging claw 25 of the case 1 and the locking claw 25 of the case 1.

By the way, as described above, the mounting frame 110
Has three pairs of holding grooves 114a and 115a in the fixed beam portion 114 and the movable beam portion 115, respectively. In the case 1, a pair of locking claws 25 is formed on each of the upper and lower end surfaces. 1 can be attached to the attachment frame 110 up to three. That is, the number of the mounting frames 110 is three, and the mounting dimensions are set so that the case 1 can be mounted on the three mounting frames 110 up to a maximum of three.
By defining the relative mounting dimensions of the case 1 and the mounting frame 110 in this manner, the mounting frame 110 has
Any number of cases 1 in a range of up to three can be attached. The pitch of each of the holding grooves 114a and 115a provided in the fixed beam portion 114 and the movable beam portion 115 is equal to the pitch of the locking claws 25 protruding from the case 1 having one unit size. Since the grooves 114a and 115a are at equal intervals, in the case 1 of one unit size, any two adjacent adjacent fixed beam portions 114 and movable beam portions 115
The mounting frame 110 can be attached using the holding grooves 114a and 115a.

By the way, a recess 131 is formed in the front surface of the middle part of each horizontal piece 112 of the mounting frame 110. Each recess 131 has a box hole 132 for inserting a box screw for attaching the mounting frame 110 to an embedding box (not shown), and a screw for directly attaching the mounting frame 110 to a construction surface such as a wall surface. And a screw insertion hole 133 for inserting a scissor fitting (not shown) used for attaching to a wall panel or the like forming a construction surface.
4 are provided.

At four corners of the mounting frame 110, there are provided decorative plate locking holes 135 for locking the locking projections 123 protruding from the rear surface of the decorative plate 120. The decorative plate 120 can be detachably attached so as to cover the front surface of the attachment frame 110 by inserting and locking the stop projection 123. The decorative plate 120 is formed using an insulating synthetic resin, and has a rectangular main portion 121 covering the front surface of the mounting frame 110, and a rear portion extending from the periphery of the main portion 121 to the entire periphery. Is formed in a substantially box shape in which a side wall 122 protruding from the front end is formed continuously and integrally. The locking projections 123 project from four corners on the rear surface side of the main portion 121. In addition, an opening window 121 a that exposes the front surface of the case 1 attached to the attachment frame 110 is provided at the center of the main portion 121. FIG. 8 shows that the case 1 is mounted on the mounting frame 110 and the decorative plate 1 is mounted on the mounting frame 110.
FIG.

The size of the opening window 121a of the decorative plate 120 may be set according to the number of cases to be mounted on the mounting frame 110. For example, as shown in FIG. It is also possible to connect the case 1 "of the switch C of the dimension and the case 1 of the dimmer in succession. In addition, 250a in FIG. 12 is a flat blade insertion slot into which a flat blade is inserted. , 250b are pin-type blade insertion holes into which pin-type pin-type blades are inserted,
The flat blade insertion port 250a and the pin-type blade insertion port 250b communicate with each other.

The distance between the opposing surfaces of the side wall 122 of the decorative plate 120 is larger than the width of the corresponding part of the mounting frame 110. That is, the decorative plate 120 is provided on the front side of the mounting frame 110 provided on the construction surface.
At the time of attachment, the mounting frame 110 is fitted inside the decorative plate 120, and the leading edge of the side wall 122 of the decorative plate 120 is almost in contact with the construction surface. As a result, the butt surface between the mounting frame 110 and the decorative plate 120 does not protrude forward from the construction surface, and the butt line between the two is hardly seen from the side surface, and the appearance is improved.

The inner side surface of the side wall 122 of the decorative plate 120 is in contact with the side surface of the mounting
A plurality of regulating ribs 124 for preventing the displacement of the decorative plate 120 with respect to 0 are provided. By the way, mounting frame 1
On the outer surfaces of the two frame pieces 113a and 113b, an inclined surface 113c that is inclined so as to protrude outward toward the rear, and an overhang portion 113 that projects outwardly from the inclined surface 113c.
d is formed. Further, ribs 125 are provided on the inner side surfaces of the upper and lower side walls 122 of the decorative plate 120 so that a rear end portion thereof comes into contact with a front surface of the overhang portion 113d.
This prevents the decorative plate 120 from rattling.
When the decorative plate 120 is mounted on the mounting frame 110, the regulating rib 124 of the decorative plate 120 is
0c frame pieces 113a and 113b formed on 113b
Is easy to install. A pair of cutouts 1 are formed in the upper and lower side walls 122 of the decorative plate 120.
26, a jig (such as the tip of a flathead screwdriver) is inserted into the cutout 126 so that the decorative plate 12
When a force is applied in a direction (forward) for separating the decorative plate 120 from the mounting frame 110, the engagement between the locking projection 123 of the decorative plate 120 and the decorative plate locking hole 135 of the mounting frame 110 is released, and the decorative plate 120 is removed. It can be removed from the mounting frame 110. At a position corresponding to the cutout portion 126 in the frame piece 113b of the mounting frame 110, a relief portion 136 recessed inward from the inclined surface 113c is provided.
The jig inserted into the plate is released so that the jig can be inserted all the way, so that a force can be easily applied when the decorative plate 120 is removed. Further, a rib 137 which is thinner than the overhang portion 113d is formed from the rear end of the escape portion 136.
It extends so as not to protrude from the notch 126 of the decorative plate 120. In other words, there is a possibility that the jig inserted into the notch 126 may be damaged by applying a force with the portion contacting the construction surface as a fulcrum, but the jig inserted into the notch 126 by providing the rib 137. When the jig abuts on the rib 137 and the decorative plate 120 is removed from the mounting frame 110, it is possible to prevent the jig from damaging the construction surface.

On the rear side of the decorative plate 120, projecting strips 128a to 128c which are respectively fitted into three slits 118a to 118c provided in the mounting frame 110 when mounted on the mounting frame 110 are arranged. . Here, the dimensions of the protruding strips 128a to 128c are set such that the slits 1a are inserted into the slits 118a to 118c of the mounting frame 110.
18a to 118c and the respective protruding strips 128a to 128
The dimension is set such that only a small gap is formed between the gap and the gap c. That is, the mounting frame 11 to which the case 1 is mounted
In the state where the decorative plate 120 is attached to the mounting frame 110, the three ridges 128a to 128c
18a-118c, and slits 118a-11
Since only a small gap is formed between the inner peripheral surface of 8c and each of the protruding strips 128a to 128c, the movement (flexure) of the movable beam 115 of the mounting frame 110 is restricted.

Although the decorative plate 120 made of synthetic resin is used in the present embodiment, a decorative plate made of metal may be used in some cases. In the case of a metal decorative plate (not shown), the locking projection 123 like the synthetic resin decorative plate 120 cannot be provided. Therefore, when a metal decorative plate is mounted on the mounting frame 110, a mounting screw hole (not shown) into which a mounting screw for mounting the metal decorative plate is screwed is formed in the recess 1 of the mounting frame 110.
31 may be provided. Thereby, it is possible to cope with both the decorative plate 120 made of synthetic resin having the locking protrusion 123 and the decorative plate made of metal attached by the mounting screw.

Thus, the case 1 of the dimmer of the present embodiment
Can be connected to a wiring device such as an outlet or a switch in the mounting frame 110, and can be constructed in the same construction method as the wiring device, and the prior wiring is also possible. It will be easier. As the volume VR, a slide type may be used. In this case, a slide groove 29 is formed on the front surface of the cover 20 as shown in FIG. What is necessary is just to connect with child 60 '. With such a configuration, the dimming level can be easily perceived more easily than when a rotary VR is used as the volume VR.

The case 1 only needs to be formed to have the same dimensions as the unit dimensions of a general wiring device. As shown in FIG. 16, the body 10 and the cover 20 are connected to each other by an assembly frame 140 and assembled. Such a structure may be adopted. That is, the substantially U-shaped assembly frames 140 are fitted into the shoulder portions 21 'on both sides of the cover 20, respectively.
The substantially V-shaped hooking claws 140a formed at the distal ends of the two leg pieces 140d of the forty engage with the step portions 19 formed on the side surfaces of the body 10, respectively, and the cover 20 and the body 10 are fixed by the assembly frame 140. You. The leg 140d of the assembly frame 140 is fitted into the concave portion 21c of the shoulder 21 'and the concave portion 8 of the body 10, and the hook 1 at the tip of the leg 140d.
40 a is engaged with the step portion 19. Here, Case 1
Up to 3 mounting frames (not shown) for embedded wiring devices
Dimensions equivalent to one embedded wiring device with unit dimensions standardized so that it can be mounted up to one piece (for example, attached to the mounting frame of a large square continuous wiring device standardized by JIS standards) And a pair of engaging claws 140 which are engageable with the holding holes provided in the mounting frame.
b project from both ends of the assembly frame 140. Each of the assembling frames 140 has a locking hole 14 into which a locking claw of the mounting frame is locked when mounted on a metal mounting frame (not shown).
0c is provided.

The case 1 thus formed is formed to have the same mounting dimensions as the unit dimensions of a general wiring device, so that up to three cases 1 can be mounted on the mounting frame. The mounting frame has, on both side pieces surrounding the opening window, holding holes for engaging locking claws 140b projecting from side edges of the assembly frame 140, and one side piece has the other side piece with the other side piece. The operation piece which can bend so as to change the distance is formed. When the case 1 is mounted on the mounting frame, if the case 1 is pressed against the mounting frame from behind the mounting frame, the operation piece is bent and the case 1 can be fitted to the mounting frame.
At this time, the front side of the case 1 projects from the opening window. On the other hand, in order to remove the case 1 from the mounting frame, the operation piece may be pryed with a screwdriver or the like. A connecting piece surrounding the opening window and orthogonal to the side piece has a long hole for inserting a box screw for connecting the mounting frame to the switch box, and a plate for mounting a decorative plate (not shown) covering the front surface of the mounting frame. A screw hole or the like into which the screw is screwed is provided. The mounting frame is a mounting frame made of a synthetic resin. However, in the case of a metal mounting frame, the mounting frame may be connected to the mounting frame by using the locking holes 140c of the assembly frame 140. In addition, case 1
An opening window for exposing the front side of the device and an insertion hole for inserting a plate screw are formed.

(Embodiment 2) The dimmer of the present embodiment is shown in FIG.
This will be described with reference to FIGS. The case 1 of the dimmer according to the present embodiment includes a mounting frame 110 for an embedded wiring device.
It is formed to have a size corresponding to two unit-size embedded wiring devices that can be connected and mounted up to a maximum of three in a form in which the front surface of the case 1 is exposed from the opening window 111 of the mounting frame 110. Have been. The case 1 is made of a thermosetting synthetic resin (for example, made of melamine phenol resin) and formed in a rectangular parallelepiped shape with an open front surface, and an elastic synthetic resin (for example, made of polybutylene terephthalate resin). = PBT resin), and is formed by joining a cover 20 formed in a rectangular parallelepiped shape having an open rear surface.

Assembling claws 11 are provided on both ends of the body 10 in the left-right direction (the left-right direction in FIG. 18A). On the other hand, a pair of shoulders 2
1 are protruded, and assembly pieces 22 are protruded from the upper and lower rear edges of both sides toward the body 10. Each assembly 2
2, an engagement hole 22a is formed for engaging the assembling claw 11 provided on the body 10 in an uneven manner. A guide surface 11a (see FIG. 18D) is formed at the front end of the assembly claw 11 so as to be inclined forward so that the amount of protrusion from the body 10 is reduced. Therefore, when assembling the cover 20 to the body 10, the assembly piece 22 bends along the guide surface 11a,
Finally, the engaging hole 22a provided in the assembly piece 22 is
The body 10 and the cover 20 are connected to each other. As described above, since the assembly piece 22 needs to be bent, the cover 20 is formed of an elastic synthetic resin.

The internal space of the body 10 is divided by a partition wall 12 into a terminal storage chamber 13 and a circuit storage chamber 14.
In a terminal storage chamber 13 formed in the body 10 via the partition wall 12, a pair of terminals 30 formed of quick-connecting terminals is housed. The terminal 30 includes a terminal plate 35 and a locking spring 36. The locking spring 36 includes the terminal plate 35 and the locking spring 3.
The lock piece 36b that bites into the electric wire inserted into the electric wire insertion port 15 (see FIG.
And a contact piece 36a elastically contacting the electric wire. That is, the locking spring 36 and the terminal strip 35 are provided on the rear wall of the body 10.
An electric wire insertion port 15 is formed so that an electric wire can be introduced between the wire insertion hole 15 and the wire. When an electric wire is inserted between the locking spring 36 and the terminal plate 35 through the electric wire insertion opening 15 from the side of the locking piece 36a, the electric wire is moved between the terminal piece 35 and the contact piece 36a by the spring force of the locking piece 36a. And the lock piece 36b bites into the wire, making it impossible to pull out the wire. Thus, the wire insertion port 15
Can be connected simply by inserting an electric wire into it, so that the connection work is easier than in the case of using a screw terminal or the like.

The terminal lock chamber 13 is provided with a double lock spring 3.
A release button 37 made of a thermosetting resin (for example, made of urea resin) is provided so as to straddle 6. The release button 37 is in contact with the lock piece 36b of the both lock springs 36, and the part where the release button 37 abuts on the lock piece 36b is that the lock piece 36b is the terminal piece 35.
Is shifted from the portion where the electric wire is held. here,
In this embodiment, the insulating piece 3 is moved forward from the middle of the release button 37 so that a part of the release button 37 is interposed between the two terminals 30.
7a is integrally protruded, so that the electric wire inserted from the electric wire insertion port 15 has a terminal 30 different from the corresponding terminal 30.
Can be prevented from coming into contact with each other, and the insulation between the terminals 30 can be improved. The operation hole 16 (FIG. 18E and FIG. 1) is formed in the rear wall of the body 10 at a position corresponding to the release button 37.
9) is formed, and by inserting the tip of a flathead screwdriver or the like into the operation hole 16 and pressing the release button 37, the locking piece 36b biting into the electric wire is bent so as to be separated from the electric wire, and It is designed to be able to be pulled out. The terminal plate 35 is provided with a connecting piece 35a for mounting on a printed board 51 described later.

Further, the printed circuit board 5 is provided in the circuit storage room 14.
1 and a later-described choke coil L and a heat sink 40
And so on. Here, the printed board 51 constitutes a printed board block 50 (see FIG. 20) together with the circuit components to be mounted, and the connection piece 35a of the terminal board 35 is soldered to the printed board 51. The printed board block 50 has a circuit section as shown in FIG. A series circuit of a commercial power supply Vs and an illumination load La such as an incandescent lamp is connected between the terminals 30 by the above-described electric wire.

[0058] Between the terminals 30, a series circuit of a choke coil L is inserted which constitutes the triac Q _1, the noise filter as a power control element, this series circuit constitutes a noise filter together with the choke coil L capacitor C ₁ are connected in parallel. The triac Q _1,
Resistor R and volume VR and the series circuit of the capacitor C ₂ are connected in parallel to a series circuit of the Zener diode ZD _1, ZD ₂ is connected to the series circuit of the volume VR and the capacitor C _2. Further, a connection point of the volume VR and the capacitor C _2, the diac Q ₂ as the trigger element is inserted between the triac Q _1, the potential of the connection point reaches the breakover voltage of the diac Q _2, turned on triac Q ₁ is triggered. Triac Q ₁ is kept on until once the voltage waveform of the next commercial power source Vs becomes ON reaches the zero-crossing point. That is, triggered by a diac Q ₂ every half cycle of the voltage waveform of the commercial power source Vs, then, is to keep the on state until the zero-cross point. Therefore, it is possible to adjust the ignition period triac Q ₁ by by adjusting the resistance value of the volume VR to adjust the time until the terminal voltage of the capacitor C ₂ reaches the breakover voltage of the diac Q _2, lighting The load La can be turned on at a desired dimming level. The choke coil L
Is insulated by being covered with a coil cover. In addition, a surge absorber ZNR as a surge absorbing element is connected between the terminals 30.

Incidentally, the volume VR is of a rotary type, and an operation knob 60 is fitted to an operation shaft protruding forward. The operation knob 60 has a flange 62 at the rear, and
0 is inserted from the rear into a circular hole 24 formed substantially at the center of the front surface of the O. Here, an elastic body 66 (for example, made of neoprene rubber) is interposed between the distal end surface of the operation shaft of the volume VR and the operation knob 60, and a gap is provided between the cover 20 and the operation knob 60. To prevent rattle of the operation knob 60 with respect to the cover 20,
It is possible to prevent water droplets and the like from entering the case 1 through the through hole. The volume VR and the operation knob 60 constitute a light control setting device.

The dimming level can be known from the display provided on the front surface of the cover 20 around the operation knob 60 and the degree of rotation of the operation knob 60. By the way, the operation knob 60
Has a flange 62 at the rear, and a rib 6
2a (see FIG. 19) is protruded. Meanwhile, cover 2
On the rear surface side of the 0, an engagement groove with which the rib 62a engages when the operation knob 60 is rotated to lower the dimming level and is operated to a position where the illumination load La is turned off is formed at the tip. A protrusion 20d (see FIG. 19) is provided to protrude. Therefore, when the operation knob 60 is operated to the above position, a click feeling is obtained, the operation feeling is improved, and the user can reliably recognize that the operation has been performed to the position where the lighting load La is turned off, Unnecessary force can be prevented from being applied to the operation knob. By operating the operation knob 60, the lighting load La is turned on and off and light control is performed.

By the way, TRIAC Q₁Is the heat sink 40
And then soldered to the printed board 51
You. The radiator plate 40 is made of, for example, an aluminum plate
Are bent as appropriate along the inner peripheral surface of. Triac
Q₁Is attached to the heat sink 4 by the mounting screws 75 (see FIG. 17).
0 is fixed to the fixing piece 40b. In addition, TRIAC Q
₁Is pre-coated with silicon grease on the surface that contacts the fixing piece 40b.
Applied. In the present embodiment, the heat sink 40 is connected to the body 20.
The heat sink 4 is formed by appropriately bending the shape along the inner peripheral surface of the heat sink.
0 area can be increased, and TRIAC Q₁of
Since heat is efficiently dissipated, the temperature on the front side of case 1
Can be suppressed, and the user can
It has the advantage of not giving anxiety. Also book
In the embodiment, the heat sink 40 is provided inside the rear surface of the body 10.
A plurality of small protrusions (not shown) in contact with each other are projected
Therefore, the rear surface of the body 10 and the base end piece 40a of the heat sink 40 are
Since there is a gap between them, the temperature rise on the rear surface of the body 10 is suppressed.
Can be controlled. Also, the base piece 40a of the heat sink 40
A positioning hole 42 for positioning is formed by punching.
The positioning hole is provided inside the rear surface of the body 20.
A positioning rib (not shown) inserted through
The heat sink 40 without using screws.
Positioning is performed. Also, the base piece 40a of the heat sink 40
The engaging claws 40h and 40g protrude integrally from both left and right ends of the
The engaging claws 40h,
An engagement protrusion 10c (see FIG. 17) that engages with 40g protrudes.
The heat sink 40 from the front of the body 20.
The heat sink 40 is easily fixed to the body 20 by inserting
can do.

Further, in the present embodiment, a slit 17 for heat radiation communicating with the inside and outside of the body 10 is provided on the rear surface of the body 10.
Are formed, so that heat is hardly trapped inside the body 10. The above-described case 1 is attached to a plate 100 having substantially the same configuration as that of the first embodiment.
Four locking claws 25 are protruded from each other so as to be connected to each other. An inclined surface 25a is formed at the front end of the locking claw 25 such that the amount of protrusion from the shoulder 21 decreases toward the front.

In order to construct the dimmer having the above configuration, the plate 100 shown in FIGS. 17, 24 and 25 is used. The plate 100 is provided with a mounting frame 11 for holding the case 1.
0, and a decorative plate 120 that covers the mounting frame 110 and has a good appearance. Mounting frame 110 is the first embodiment
1 and FIGS. 9 and 10 are the same as those described with reference to FIGS.

As described in the first embodiment, the mounting frame 110 has three pairs of holding grooves 114a and 115a in the fixed beam 114 and the movable beam 115, respectively. Since four locking claws 25 are formed on both end surfaces, the above-described case 1 is attached to the mounting frame 11.
In addition, one wiring device such as a switch or an outlet having a case formed in a unit size can be mounted (can be connected continuously).

The basic structure of the decorative plate 120 is also substantially the same as that of the first embodiment, except for the size of the opening window 121a. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 22 shows a state in which the case 1 is mounted on the mounting frame 110, and FIG. 23 shows a state in which the decorative plate 120 is mounted on the mounting frame 110 to which the case 1 is mounted. In addition, W in FIG. 23 is a mounting surface such as a wall.

The size of the opening window 121 a of the decorative plate 120 may be set according to the number of cases to be mounted on the mounting frame 110. Note that if the size of the opening window 121a is set to a size that allows three case units of unit size to be connected in series, the case 1 of the dimmer of the present embodiment and the case of the dimmer of the first embodiment will be described. The case 1 and the case 1 can be connected.
In addition, a wiring device having a unit size such as an outlet or a switch can be provided continuously.

Thus, the case 1 of the dimmer of the present embodiment
Can be connected to a wiring device such as an outlet or a switch in the mounting frame 110, and can be constructed in the same construction method as the wiring device, and the prior wiring is also possible. It will be easier. As the volume VR, a slide type may be used. In this case, a slide groove 29 is formed on the front surface of the cover 20 as shown in FIG. What is necessary is just to connect with child 60 '. With such a configuration, the dimming level can be easily perceived more easily than when a rotary VR is used as the volume VR.

The case 1 only needs to be formed in the same size as the unit size of a general wiring device. As shown in FIG. 27, the body 10 and the cover 20 are assembled by assembling with the assembly frame 140. Such a structure may be adopted. That is, the substantially U-shaped assembly frames 140 are fitted into the shoulder portions 21 'on both sides of the cover 20, respectively.
The substantially V-shaped hooking claws 140a formed at the distal ends of the two leg pieces 140d engage with the step portions 19 formed on both sides of the body 10, and the cover 20 and the body 10 are fixed by the assembly frame 140. Is done. The leg 140d of the assembly frame 140 is fitted into the recess 21c of the shoulder 21 'and the recess 8 of the body 10, and the hook 140a at the tip of the leg 140d is engaged with the step 19. Here, Case 1
Are two embedded wiring devices of unit dimensions standardized so that up to three can be mounted on the mounting frame (not shown) for the embedded wiring device described in the first embodiment. (For example, a dimension equivalent to one large-sized continuous wiring device that can be attached to a mounting frame of a large-sized continuous wiring device standardized by the JIS standard). A pair of engaging claws 140 b that can be engaged with the holding holes provided in the mounting frame are protruded from both ends of the assembly frame 140. Each of the assembly frames 140 is provided with a pair of locking holes 140c for locking the locking claws of the mounting frame when the frame is mounted on a metal mounting frame (not shown).

[0069]

According to the first aspect of the present invention, there is provided a dimming setting device for setting a dimming level of a lighting load, and a case in which an operation knob of the dimming setting device is exposed to the front, and the case is embedded. One type of embedded wiring device of unit size that can be attached to a mounting frame for a wiring device of a type with a maximum of three units that can be connected and mounted so that the front of the case is exposed from the opening window of the mounting frame. Since it is formed in a corresponding size, there is an effect that the mounting frame can be connected to a wiring device such as an outlet or a switch.

According to a second aspect of the present invention, in the first aspect of the present invention, the case comprises a body on the rear end side, a cover on the front end side,
It is composed of a pair of substantially U-shaped assembly frames fitted from the front side of the body so as to connect the body and the cover, and has a mounting portion that can be mounted on the mounting frame. There is an effect that it can be easily connected to wiring devices such as outlets and switches.

According to the third aspect of the present invention, in the second aspect of the present invention, the work can be performed by the same construction method as other standardized wiring devices such as an outlet and a switch, and the construction work can be easily performed by a construction company. This has the effect. According to a fourth aspect of the present invention, in the first aspect of the present invention, the case includes a rear end side body and a front end side cover, and an assembly claw protruding from an outer surface of the body and an assembly piece protruding from the cover. The body and the cover are connected by the concave and convex engagement with the provided assembly holes, and locking claws are locked on both sides of the cover so as to be locked by the holding portions formed on the mounting frame. Item 2
In addition, the number of parts can be reduced as compared with the invention of claim 3, and there is an effect that the manufacturing process can be simplified and the cost can be reduced.

The invention according to claim 5 is the invention according to claims 1 to 4.
In the invention, the case has a pair of terminal plates to which the wires inserted from the pair of wire insertion ports formed in the case are respectively connected, and a pair of locking springs which press-connect the wires to the respective terminal plates. A release button is provided to deflect both locking springs in the pressure release direction to disconnect the connection between each terminal plate and each wire, and a part of the releasing button is interposed between the locking springs. As compared with the screw type terminal structure, the safety in construction can be secured, and the wires can be connected easily and securely, so that uniform connection and saving of construction can be achieved. There is an effect that the contact with the terminal can be prevented by the release button, and the insulating property can be improved.

The invention of claim 6 is the invention of claims 1 to 5
In the invention of the above, a switch for turning on and off the lighting load is provided in the case, and a switch is pressed at the rear of the operation knob so as to turn off the lighting load when the switch is operated to a predetermined position in a direction to lower the dimming level. Since the pressing portion that protrudes is provided, there is an effect that the lighting load is turned on and off and light control is performed by operating the operation knob.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, a recess is formed in a front portion of the pressing portion, and an operation knob is provided on a rear surface side of the cover when the operation knob is operated to the predetermined position. In addition, since the engaging projection is engaged with the concave portion so as to be removably engaged with the concave portion, there is an effect that a click feeling can be obtained when the operation knob is operated to a predetermined position. According to an eighth aspect of the present invention, in the first to seventh aspects, the case includes a power control element for controlling power supplied to the lighting load, and a radiator plate attached to the power control element. Since the radiator plate is formed in a substantially U shape, it is possible to suppress a rise in temperature of the case. In addition, by forming the radiator plate in a substantially U-shape, the radiator plate has a larger heat dissipation plate than a substantially L-shaped radiator plate. It is possible to increase the area, and there is an effect that the heat radiation effect can be enhanced.

According to a ninth aspect of the present invention, in the invention of the eighth aspect, since a plurality of projections which come into contact with the heat radiating plate are provided on the inner side of the rear surface of the case, the projection is provided between the inner side of the rear surface of the case and the radiating plate. Since the gap is generated, there is an effect that the temperature rise on the rear surface of the case can be suppressed. According to a tenth aspect of the present invention, in the first to ninth aspects, the case is:
Since slits for heat dissipation are formed on both sides substantially parallel to the longitudinal direction, heat dissipation can be enhanced by forming the slits, and slits are formed on both sides substantially parallel to the longitudinal direction. Accordingly, the number of slits can be increased as compared with the case where the slit is formed on a surface orthogonal to the longitudinal direction of the case, and there is an effect that the heat dissipation can be further improved.

According to an eleventh aspect of the present invention, in the tenth aspect of the present invention, a waterproof groove is formed at an upper portion of the rear surface of the case so as to be inclined obliquely rearward at a position above the slit so as to be inclined downward. There is an effect that water droplets and the like can be prevented from entering through the slit. According to a twelfth aspect of the present invention, in the fourth to eleventh aspects of the present invention, since the cover and the body are fitted into the concave and convex portions, there is an effect that the impact resistance of the case against a drop or the like can be enhanced.

According to a thirteenth aspect of the present invention, in the sixth to twelfth aspects of the invention, the dimming setting device includes a rotary type volume, and a flange at the rear portion which is in contact with the inside of the front surface of the case. The operation knob is inserted and fitted, and an elastic body is interposed between the distal end surface of the operation shaft and the operation knob. Since the operation knob can be prevented from rattling against the case, and the operation load of the operation knob is kept substantially constant, the operation piece of the switch can be surely pushed by the pressing portion. There is an effect that water droplets can be prevented from entering through a gap between the operation knob and the case.

According to a fourteenth aspect of the present invention, in any of the first to twelfth aspects, the dimmer setting device comprises a slide type volume and an operation knob connected to an operation shaft of the volume. Therefore, compared with the thirteenth aspect, there is an effect that the dimming level can be easily perceived sensuously.
According to a fifteenth aspect, in the fifth aspect, the terminal comprising the locking spring and the terminal plate and the release button are disposed at one end in a longitudinal direction of the case. Since the recess for accommodating the electric wire is formed on the rear surface of the one end, there is an effect that a wide space behind the electric wire insertion port can be secured.

According to a sixteenth aspect of the present invention, there is provided a dimming setting device for setting a dimming level of a lighting load, and a case in which an operation knob of the dimming setting device is exposed to the front. Equivalent to two embedded-type wiring devices of unit size that can be attached to a mounting frame for wiring devices up to a maximum of three in a form where the front surface of the case is exposed from the opening window of the mounting frame. Since it is formed in dimensions, a dedicated mounting frame like the conventional one is not required, and it can be connected to other wiring devices such as switches and outlets on the above mounting frame for wiring devices, and it can be installed separately There is an effect that there is no need to provide a space and construction is easy. In addition, since a dedicated mounting frame is not required, there is an effect that cost can be reduced.

According to a seventeenth aspect, in the sixteenth aspect, the case comprises a rear end body and a front end cover, and an assembling claw projecting from an outer surface of the body and projecting from the cover. Since the body and the cover are joined by the concave and convex engagement with the assembly holes provided in the assembly piece, there is an effect that the body and the cover can be easily joined without using a separate member.

According to an eighteenth aspect of the present invention, in the invention of the sixteenth aspect or the seventeenth aspect, locking claws to be locked to the holding portions formed on the mounting frame are provided on both side surfaces of the case. Therefore, it can be constructed by the same construction method as wiring equipment such as other standardized outlets and switches, and there is an effect that construction is easy for a construction company. According to a nineteenth aspect of the present invention, in the invention of the sixteenth to eighteenth aspects, the case is provided with a heat-dissipating slit on the rear surface, so that the temperature inside the case can be suppressed from rising. There is.

According to a twentieth aspect of the present invention, in the invention of the seventeenth to nineteenth aspects, a rib substantially perpendicular to the front-rear direction is provided at a rear portion of the operation knob, and an illumination load is provided on a rear surface side of the cover. Since the engagement groove with which the rib is engaged when the operation knob is operated to the off position is formed, a click feeling is obtained when the operation knob is operated to the above position, and the operation feeling is good. In addition, there is an effect that the user can reliably recognize that the operation has been performed to the position where the lighting load is turned off.

According to a twenty-first aspect of the present invention, in the seventeenth to twentieth aspects of the present invention, the power control element for controlling the power supplied to the lighting load, and the radiating plate attached to the power control element are provided in the case. An engaging claw protrudes from a key point on an outer peripheral portion of the heat radiating plate, and an engaging protrusion for engaging the engaging claw of the heat radiating plate is provided on the inner surface of the body. There is an effect that can be easily fixed to the body.

According to a twenty-second aspect of the present invention, in the twenty-first aspect, a positioning hole for positioning is formed in the heat radiating plate, and a positioning rib inserted into the positioning hole protrudes inside the rear surface of the body. Therefore, there is an effect that the heat sink can be positioned without using screws or the like. According to a twenty-third aspect of the present invention, in the invention of the twenty-first or twenty-second aspect, a plurality of small projections that come into contact with the radiator plate protrude inside the rear surface of the case. Since a gap is formed between the case and the case, there is an effect that heat dissipation is improved and a rise in temperature on the rear surface of the case can be suppressed.

According to a twenty-fourth aspect of the present invention, in the twenty-first to twenty-third aspects, the radiator plate is appropriately bent along the inner peripheral surface of the body, so that the area of the radiator plate is increased. And the heat radiation effect can be enhanced. According to a twenty-fifth aspect of the present invention, in any of the sixteenth to twenty-fourth aspects, the dimming setting device includes a slide type volume and an operation knob connected to an operation shaft of the volume. There is an effect that the light level can be easily perceived sensuously.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment.

FIG. 2 is a front view showing the same.

FIG. 3 is a side view showing the same.

FIG. 4 is a bottom view showing the same.

FIG. 5 is a perspective view showing the same and viewed from the back side.

FIG. 6 is a side sectional view showing the same.

FIG. 7 is a circuit diagram on the figure.

8A and 8B show a state where the case is attached to a plate, wherein FIG. 8A is a front view, FIG. 8B is a bottom view, and FIG. 8C is a side view.

FIG. 9 is a perspective view of the mounting frame and the decorative plate as viewed from the front side.

FIG. 10 is a perspective view of the mounting frame and the decorative plate as viewed from the rear side.

FIG. 11 is an explanatory diagram of how to attach the above case to an attachment frame.

FIG. 12 is a front view showing a state in which the case is connected to another wiring device and attached to a plate.

FIG. 13 is a bottom view showing another embodiment.

FIG. 14 is a bottom view showing another embodiment.

15A and 15B show a state in which the case of another embodiment is attached to a plate, wherein FIG. 15A is a front view, FIG.
(C) is a side view.

FIG. 16 is a partially omitted side view showing a main part of the above.

FIG. 17 is an exploded perspective view showing the second embodiment.

18 (a) is a front view, FIG. 18 (b) is a bottom view, FIG. 18 (c) is a plan view, FIG. 18 (d) is a side view, FIG. 18 (e) is a rear view, and FIG. It is.

FIG. 19 is a side sectional view showing the same.

FIG. 20 shows a printed circuit board block used in the above;
(A) is a front view, (b) is a side view, and (c) is a rear view.

FIG. 21 is a circuit diagram of the same.

FIG. 22 is a front view of a state where the above case is mounted on a mounting frame.

23A and 23B show a state in which the case is attached to a plate, wherein FIG. 23A is a front view, FIG. 23B is a bottom view, and FIG. 23C is a side view.

FIG. 24 is a perspective view of the mounting frame and the decorative plate as viewed from the front side.

FIG. 25 is a perspective view of the mounting frame and the decorative plate as viewed from the rear side.

FIG. 26 is a front view showing a state where a case of another embodiment is attached to a plate.

FIG. 27 is an exploded perspective view showing a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 10 Body 17 Slit 20 Cover 25 Locking claw 30 Terminal 40 Heat sink 60 Operation knob VR volume 100 Plate 110 Mounting frame

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tomiyuki Ota 2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. In company

Claims (25)

[Claims] 1. A dimming setting device for setting a dimming level of a lighting load, and a case in which an operation knob of the dimming setting device is exposed on a front surface, wherein the case is a mounting for an embedded wiring device. Up to 3 with the front of the case exposed through the opening window of the mounting frame on the frame
A dimmer, wherein the dimmer is formed in a size corresponding to one embedded wiring device having a unit size that can be connected and attached up to a plurality of units. 2. The case comprises a body on a rear end side, a cover on a front end side, and a pair of substantially U-shaped assembly frames fitted from the front side of the body so as to connect the body and the cover. 2. The dimmer according to claim 1, further comprising a mounting portion that can be mounted on the mounting frame. 3. The dimmer according to claim 2, wherein the mounting portion is a locking claw inserted into a holding hole formed in the mounting frame. 4. A case, comprising a body on a rear end side and a cover on a front end side, and an assembly claw projecting from an outer surface of the body;
The body and the cover are joined by concave and convex engagement with an assembly hole provided in an assembly piece protruding from the cover, and locking claws which are locked to holding portions formed on the mounting frame project from both sides of the cover. The dimmer according to claim 1, wherein the dimmer is provided. 5. A case, a pair of terminal plates to which electric wires inserted from a pair of electric wire insertion ports formed in the case are respectively connected, and a pair of locking springs for press-connecting the electric wires to the respective terminal plates. And a release button for bending both locking springs in the pressure release direction to disconnect the connection between each terminal plate and each electric wire, and a part of the releasing button is interposed between the both locking springs. The dimmer according to any one of claims 1 to 4, wherein: 6. A switch for turning on / off a lighting load is provided in the case, and a switch is provided at a rear portion of the operation knob so as to turn off the lighting load when the switch is operated to a predetermined position in a direction for lowering the dimming level. 6. The dimmer according to claim 1, wherein a pressing portion for pressing is formed by projecting. 7. A concave portion is formed in a front portion of the pressing portion, and a rear surface of the cover is provided with an engaging member which is detachably engaged with the concave portion when the operation knob is operated to the predetermined position. 7. The dimmer according to claim 6, wherein the projection is provided. 8. A power control element for controlling power supplied to a lighting load in a case, and a radiator plate attached to the power control element, wherein the radiator plate is formed in a substantially U shape. The dimmer according to any one of claims 1 to 7, wherein: 9. A plurality of projections protruding from the inside of the rear surface of the case to come into contact with the heat sink.
The dimmer as described. 10. The dimmer according to claim 1, wherein the case has slits for heat radiation formed on both side surfaces substantially parallel to the longitudinal direction. 11. The dimmer according to claim 10, wherein a waterproof groove is formed at an upper portion of the rear surface of the case, the waterproof groove being inclined obliquely rearward at a position above the slit. 12. The dimmer according to claim 4, wherein the cover and the body are fitted with concave and convex. 13. A dimmer setting device comprising: a rotary volume; and an operation knob having a rear portion provided with a flange abutting on the inside of the front surface of the case and into which an operation shaft of the volume is inserted and fitted. 13. The dimmer according to claim 6, wherein an elastic body is interposed between the distal end surface of the light source and the operation knob. 14. The dimming setting device according to claim 1, wherein the dimming setting device comprises a slide type volume and an operation knob connected to an operation shaft of the volume.
The dimmer as described. 15. A terminal comprising the locking spring and the terminal plate, and the release button are disposed at one end in a longitudinal direction of a case, and the case is provided at a rear surface of the one end with the electric wire. 6. The dimmer according to claim 5, wherein a recess is formed for accommodating the light. 16. A dimming setting device for setting a dimming level of a lighting load, and a case in which an operation knob of the dimming setting device is exposed on a front surface, wherein the case is a mounting for an embedded wiring device. It is formed in a size corresponding to two unit-size embedded wiring devices that can be attached to the frame up to a maximum of three in a form where the front surface of the case is exposed from the opening window of the mounting frame. A dimmer characterized by being constituted. 17. A case comprising a body on the rear end side and a cover on the front end side, wherein the case has an assembling projection formed on an outer surface of the body and an assembling hole formed on an assembly piece protruding from the cover. 17. The dimmer according to claim 16, wherein the body and the cover are joined together by: 18. The dimming control according to claim 16, wherein locking claws for locking to a holding portion formed on the mounting frame are provided on both side surfaces of the case so as to protrude. vessel. 19. The dimmer according to claim 16, wherein the case has a slit for heat radiation formed on a rear surface thereof. 20. A rib substantially perpendicular to the front-rear direction is protruded from a rear portion of the operation knob, and the rib is provided on a rear surface side of the cover when the operation knob is operated to a position where an illumination load is turned off. 20. The dimmer according to claim 17, wherein an engagement groove for engagement is formed. 21. A power control element for controlling power supplied to a lighting load in a case, and a radiator plate attached to the power control element. 18. A projection provided on the inner surface of the body, the projection being engaged with an engagement claw of a heat radiating plate.
21. The dimmer according to claim 20. 22. The positioning plate according to claim 21, wherein a positioning hole for positioning is formed in the heat radiating plate, and a positioning rib inserted into the positioning hole is protruded inside the rear surface of the body. Dimmer. 23. The dimmer according to claim 21, wherein a plurality of small projections which are in contact with the heat radiating plate are provided on the inner side of the rear surface of the case. 24. The dimmer according to claim 21, wherein the radiator plate is appropriately bent along the inner peripheral surface of the body. 25. The dimming setting device according to claim 16, wherein the dimming setting device comprises a slide type volume and an operation knob connected to an operation shaft of the volume.
4. The dimmer according to 4.