JPS6321899A - Apparatus for fitting parts - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a device in which components are mounted, for example, a heat exchanger component such as a triac or thyristor is mounted inside a lighting dimmer body case to radiate heat. This relates to a device for attaching and storing a plate tS.

(Prior art) The number of parts housed in a conventional case of this type (J is
For example, in a dimmer, an M4 structure was adopted in which the lead wire of a dimming control semiconductor element such as a triac was housed in a state in which the lead wire of a dimming control semiconductor element, such as a triac, was connected to an outlet board that was housed and held within a case.

(Problems to be Solved by the Invention) In the above-mentioned conventional component mounting structure, the components are only supported on the circuit board by lead wires and are not held sufficiently, resulting in unstable component support. There have been problems in that the lead wires are easily damaged, and the impact on the parts may cause the parts to come into contact with other parts.

The present invention was made in view of the above-mentioned problems, and it is an object of the present invention to provide a component mounting device that can reliably position and stably hold components within a case, and that can smoothly install components. .

(Structure of the Invention) (Means for Solving the Problems) The device for attaching parts of the present invention consists of a case, a part housed and held in the case, and a semiconductor element such as a triac. A heating part is formed opposite to the heating part, and a plate-shaped member such as a heat sink to which the component is attached is sandwiched and held between the inner wall of the case and the heating part.

(Function) In the component mounting device of the present invention, when the both side edges of the plate-like member to which the parts are attached are inserted along the heat part formed in the case, the both side edges of the plate-like member are connected to the heat part and the inner wall. The plate-shaped member is held in place by being clamped, and the plate-shaped member does not move loosely due to surface impact, etc.
The plate-shaped member is held in position, and when the plate-shaped member is attached, only the side edges of the plate-shaped member come into contact with the heating part, so that the contact area is small and the plate-shaped member can be attached smoothly.

(Embodiment) The configuration of an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

Reference numeral 1 denotes a case molded from synthetic resin, which has an opening on the front surface, and has a heat section formed on the inner surface of the case 1 in the vicinity of and opposite to the inner wall 1a on one end side, and has a tip edge formed in a substantially arc shape. 2.
2 is integrally formed from the frontage to the bottom.

Reference numeral 3 denotes a component such as a semiconductor element, such as a triac, and the triac 3 is attached to a plate-like member, such as a heat sink 4, with screws 5. The heat radiating plate 4 has a width substantially wider than the width of the triac 3, and is formed in an abbreviated shape with a heat radiating piece 6 bent at a substantially right angle at the lower part. Relief recesses 7, 7 of the heat section 2.2 are formed on both sides of the bent base of the heat dissipation piece part 6 of the heat dissipation plate 4, respectively.

Note that the triac 3 is connected to a circuit board 9 via a lead wire 8.

Then, install TRIAC 3 into case 1.

When installing, the triac 3 is fixed with the screws 5 of the heat sink 4, and the heat sink 4 is inserted into the case 1 from the opening into the inner wall 1a with the surface facing inside the case 1.
When inserted along the heat dissipation plate 4, both side edges of the heat dissipation plate 4 will be inserted into the heat section 2.
2 and inserted, and the heat sink 4 is inserted into the inner wall 1a of the case 1.
It is sandwiched between the heat parts 2, 2 and held in position.

Regarding this component attachment, a configuration in which the device is applied to attaching a triac as a dimming control element of a dimmer will be explained with reference to FIGS. 3 to 5.

The dimmer main body 10 has the above-mentioned case 1 and a cover 11 that is coupled to the front opening of the case 1 and closes this opening, and has a large rectangular size 1 for a small indoor switch according to the JIS standard.
It is formed to the dimensions of a personal switch. A protrusion 12 is formed in the vicinity of the opening of the case 1 of the main body 10 as a support for supporting a circuit board 9 to which a dimming circuit component is connected. Further, a box-shaped protrusion 13 is formed at the center of the front surface of the cover 11, and the engagement portions 15 of the fittings 14 are formed at both ends. Also, a box-shaped protrusion 13 of this cover 11
A through hole 17 is formed approximately in the center of the knob 16, through which a knob 16 serving as an operating section is rotatably inserted. A locking edge 18 that engages with the inner peripheral edge to prevent removal is formed, and a cam portion 19 is formed on the lower surface of the base of this knob 16. Further, narrow width parts 20.21 are formed at both ends of the case 1, leaving the upper part, and in these narrow width parts 20.21, a locking stepped part 23 for the mounting metal fitting 14 is formed, and the case 1 and The case 1 and the cover 11 are installed so that both engagement receptacles of the cover 11 straddle the parts 15, and the locking parts 24 at both ends of the metal fitting 14 are locked to the locking steps 23. 14.

Further, for this mounting, a hole 26 is formed in the center of the metal fitting 14, and a hole 26 is formed in the center of the metal fitting 14, and a hole 26 is formed in the center of the metal fitting 14.

Furthermore, heat dissipation sills 1 to 27 and 28 are formed on one end side surface of the case 1 and one end side portion of the bottom surface.

A plurality of slits 2 opened on one side of this case 1
A plurality of slits 7 7 are formed on the bottom side in the vertical direction and are formed parallel to the heat section 2, and each slit 28 is formed on the bottom surface.
is formed in the width direction of the case 1 in the direction crossing the longitudinal slits. Also, at the other end of the interior of this case 1, *X: is formed.

Further, a variable resistor 32 forming a dimming circuit and a switch 33 are connected and arranged on the surface side of the circuit board 9, and the switch 33 is opened and closed by the hm portion 19 of the knob 16. Further, the triac 3, coil 34, capacitors 35, 36, 37, trigger diode, resistor, etc. forming a dimming circuit 5 are connected to the actual surface of this circuit board 9.

The triac 3 is also provided with the heat dissipating plate 4 having an abbreviated shape and having approximately the same dimensions as the inner width of the case 1 (1 inch) at the ends 5.

Roughly on the back side of the circuit board 9 is a roughly U-shaped terminal plate 38.
．． 38 are connected. And this terminal board 38.38
A self-locking terminal 39, 39 is fitted into the locking terminal 39, 39, and a release element 40 is disposed between the two locking terminals 39, 39.

The frame 25 for the above-mentioned mounting is a frame for the well-known continuous type mounting for attaching, for example, three switches, and has a mounting hole 41; The fitting 14 is attached by forming a protrusion 42 that engages with the hole 2G.
On the other side opposite to this protrusion 42 is formed a protrusion 44 which engages with the hole 26 by crimping from the caulking hole 43 for attaching the fitting 14. Further, for this attachment, holes 45 are formed at both ends of the frame 25 for attachment to the embedded box, and screw holes 46 for attaching a decorative plate are formed in the frame 25.

Next, the dimming circuit will be explained with reference to FIG.
During 8.38, the resistor 119, the capacitor 35, and the coil 34 are connected in series through the switch 33,
A resistor 50, a variable resistor 32, and a capacitor 36 are connected in series in parallel with the resistor 49 and capacitor 35, and the resistor 51 is connected to the connecting point between the resistor 49 and the capacitor 35 and the connecting point between the variable resistor 32 and the capacitor 36. connected via. Further, a trigger diode 52 is connected to the connection point between the variable resistor 32 and the capacitor 36, a triac 3 is connected in parallel with the variable resistor 32 and the capacitor 36, and the trigger diode 52 is connected to the gate of the triac 3. has been done. Roughly the terminal plate 38
．． A capacitor 37 is connected between 38 and 38 via the switch 33.

Although not incorporated in the configuration of the embodiment, a resistor 53 and a neon lamp 54 are connected in series in parallel with the switch 33 as necessary.

Next, the operation of this embodiment will be explained.

When assembling, the triac 3 with the heat sink 4 attached
, dimming circuit components such as variable resistor 32 and terminal board 38.38
When the circuit Xa9 connected to the TRIAC 3 is inserted into the case 1 with the back side on which the TRIAC 3 is attached inside 1ITi, the heat sink 4 attached to the TRIAC 3 is attached to the inner wall 1 on one end side of the case 1.
a, and both side edges of this heat sink 4 are positioned and guided by the heat section 2.2. At this time, only both side edges of the heat dissipation plate 4 are brought into contact with the heat section 2, so the contact area is small.
It can be inserted smoothly, and both edges of the heat sink 4 are sandwiched and positioned between the inner wall 1a of the case 1 and the heat section 2.2, and the heat sink 4 is positioned between the inner wall 1a of the case 1 and the heat section 2.2. The movement of the heat sink 4 in the direction of both sides is prevented, and the movement of the heat dissipation plate 4 in the direction of both side edges is restricted by the inner surfaces of both sides of the case 1, and the heat dissipation plate 4 is held in position. The outer surface of this heat dissipation plate 4 faces the inner surface of the case 1 in which the heat dissipation slits 27 and 28 are formed. Then, when this circuit board 9 is locked to the protrusion 12 of the case 1 and the cover 11 with the knob 16 inserted through the hole 17 is fitted to the frontage of the case 1, the circuit board 9 is fixed to the protrusion 12 of the case 1. and the holding projection 11a of the cover 11, the knob 1G is engaged with the rotating shaft 32a of the variable resistor 32, and the actuator 33a of the switch 33 is engaged with one cam portion of the knob 16. In this state, the engagement receptacles at both ends of the cover 11 are installed astride the portions 15, respectively, by locking the locking portions 24 at both ends of the metal fitting 14 to the locking stepped portions 23 of the case 1, thereby connecting the case 1 and the cover 11. Combined with dimmer body 1
0 is composed.

Then, this main body 10 is installed by fitting into the installation IN matching hole 41 of the frame 25, by fitting it into the protrusion 42 of the frame 25, and by engaging the hole 26 to install one side of the four-piece bracket 14. To attach the other side of the bracket 14, the protrusion 44 is engaged with the hole 26 by caulking from the caulking hole 43. Further, other wiring devices such as a switch are attached to this holder frame 25.

In this installation, the frame 25 is attached to an embedded box on the wall surface, and a decorative board is attached to the frame 25.

When the knob 16 is rotated, the cam portion 19 closes the switch 33, and the rotation shaft 32a of the variable resistor 32 is rotated to adjust the resistance value. The charging time of the capacitor 36 is adjusted by this change in resistance value, the conduction of the triac 3 is phase-controlled via the trigger diode 52, and the lamp 4 is
The lamp 48 is dimmed by controlling the electric power ω supplied to the lamp 8 .

The heat generated by the triac 3 is conducted to the heat dissipation plate 4 and is radiated from the heat dissipation slits 27 and 28 of the case 1.

In the above embodiment, the triac 3 was explained as a component, but it is not limited to triacs, but can be applied to various components such as thyristors, and is not limited to mounting heat-generating components. The attachment is not limited to slits, and various types of attachments can be made using plate-like members.

(Effects of the Invention) According to the present invention, the plate-shaped member to which the component is attached is held between the inner wall of the case and the heating section, and the plate-shaped member is positioned in the front and rear directions and in the direction of both side edges. It is securely and stably positioned and held in the case, the parts are not damaged, and it is safe. Also, when assembling, both edges of the plate member are inserted along the dowel part. The contact area with the plate-like member is small, and the plate-like member can be smoothly and easily inserted and held while positioning.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention. Fig. 2 shows a plan view of the device, Fig. 2 is a sectional view taken along line I-II in Fig. 1, and Fig. 3 shows the mounting of the same parts as a plan view of the device. Exploded perspective view of the vessel, No. 4
The figure is a sectional view of the same as the above, FIG. 5 is a perspective view of the dimmer and the mounting frame, and FIG. 6 is a circuit diagram of the same. 1...Case, 1a...Inner wall, 2...Heat part, 3...
Triac parts, 4... Heat dissipation plate of plate-like member.

Claims (1)

[Claims] (1) Consisting of a case and parts housed and held within the case, forming a heating part facing each other in the case, and connecting a plate member to which the parts are attached to the inner wall of the case and the heating part. A component mounting device characterized by clamping and holding the parts.