JPS5812467Y2 - Mounting structure of electrical parts in electrical equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a structure for attaching electrical components such as light emitting diodes to electrical equipment such as receivers.

Conventionally, this type of mounting structure includes, for example, Fig. 1, 1 and 2.
What is shown in the figure is provided.

In the mounting structure shown in FIG. 1, an electrical component 1 such as a light emitting diode is mounted on a printed circuit board 2, and the head of the electrical component 1 is inserted into a hole 4 formed in a front panel 3 of an electrical device. 2 is fixed to the sub-chassis 5 placed behind the front panel 3, and the terminal 6 is attached to the board 2.
The lead wires 7, 7 of the electrical component 1 are wired through the wire 6.

Furthermore, in the mounting structure shown in FIG. 2, an electrical component 1 such as a light emitting diode is mounted on a board 2, and the board 2 is held by a mounting frame 8 made of an elastic material such as rubber. The head is inserted into (L4) of the front panel 3, fixed between the front panel 3 and the sub-chassis 5, and wiring is done using terminals 6.6 in the same way as in Fig. 1. .

By the way, all of the above-mentioned electrical component mounting structures are structures in which the electrical component 1 is directly mounted on the board 2.

Therefore, in these structures, the lead wires 7 of the electrical component 1,
When soldering 7 and the conductor part of the printed circuit board 2,
In other words, when performing soldering work by immersing the conductor part of the board 2 in a solder bath as a normal soldering work of this type, the heat of the molten solder is also applied to the electrical component 1, and the electrical There was a drawback that the electrical characteristics of the component 1 deteriorated due to heat.

Furthermore, in these structures, it is difficult to grasp the electrical component 1, so it is difficult to remove the electrical component 1 from the board 2.
When replacing the electrical component 1, the board 2 must be replaced along with the electrical component 1, which is uneconomical.

In particular, the structure shown in FIG. 1 (T) is such that the electrical component 1 is directly attached to the board 2, and the board 2 is further directly attached to the subchassis 5, so there was a dimensional error between the mounting parts of each component. In some cases, it is difficult to absorb the same error, and the one shown in FIG. 2 has the disadvantage that it is not possible to obtain a strong holding force for the electric component 1 and the board 2.

This idea was developed in view of the above circumstances, in a structure in which electrical components are attached to electrical equipment via holders such as circuit boards and mounting frames.
When soldering electrical components to a board, the electrical components are not affected by heat, and dimensional errors between components can be absorbed, and the holding force of the components can be easily ensured. In addition, it provides an electrical component mounting structure that improves workability during component mounting and allows for easy replacement of electrical components. A pair of retaining walls that are arranged opposite to each other so that the distance between them is narrowed, a connecting wall that connects the pair of retaining walls, and a pair of attachments that are connected to each base end of the pair of retaining walls. The wall portion and the pair of retaining wall portions and the connecting wall portion are located so as to face each other, and the distal end portions of the respective mounting wall portions are located further forward than the distal end portions of the retaining wall portions. a pair of arms extending from each other, and a pair of legs located opposite each other on an extension of the center line of the pair of arms and extending from each mounting wall in a direction opposite to the arms. and a holder in which each of the parts is configured to be elastically deformable, an electrical component is mounted between the pair of arms of the holder by utilizing the elasticity of these arms, and the electrical component is mounted between the pair of arms of the holder. is attached to a board by utilizing the elasticity of these legs, and the board is attached to an electrical device.

An embodiment of this invention will be described below with reference to FIGS. 3 to 7.

Figures 3 and 4 show mounting structure A of electrical components according to this invention.
FIG.

As shown in these figures, mounting structure A is such that a light emitting diode 13 (electrical component) is mounted in a hole 12 formed in a front panel 11 of an electrical device such as a receiver using a holder 14 and a printed circuit board 15. This is what I did.

As shown in FIGS. 5 to 7, the holder 14 includes a pair of holding walls facing each other such that the distance increases from the proximal end toward the distal end, that is, toward the top. 16, 16, a connecting wall 17 that connects these retaining walls 16, 16, and a mounting wall that is connected to each base end of the retaining walls 16, 16 and extends horizontally from these base ends. The mounting wall portion 18j8 is located so as to face the holding wall portions 16, 16 and the connecting wall portion 17 between them.
, 18 upwardly, each end portion is connected to the retaining wall portion 1.
A pair of arm parts 19, 19 extending above the tips of the arms 19, 16, and a pair of arm parts 19, 19, which are located opposite to each other on an extension of the center line of these arm parts 19, 19, and a mounting wall part 1.
A pair of leg portions 20 and 20 extending downward from 8 and 18 are integrally molded.

In this case, the arm portions 19, 19 and the leg portions 20.20 have engaging protrusions 21.21.
22.22 is formed.

The holder 14 is made of synthetic resin such as nylon, and each part is elastically deformable.
The two parts consisting of the holding wall part 16, the mounting wall part 18, the arm part 19, and the leg part 20 located on both end sides of the connecting wall part 17 are connected to each other with the arm part 19 centered on the central point P of the connecting wall part 17. 19, the tips of the legs 20 and 20 can be rotated as a whole in directions toward and away from each other, and the arm 19 and the leg 2
The two parts consisting of 0 can integrally rotate around the mounting wall part 18 in a direction in which the respective tips of the arm parts 19, 19 and the leg parts 20 and 20 move toward and away from each other.

Further, the printed circuit board 15 has a hole 23.23 for attaching the holder 14 and a hole 24.24 for attaching the substrate 15 to the front panel 11.

Further, in this embodiment, the light emitting diode 13 to be mounted on the front panel 11 has a rectangular plate-shaped base 25,
A square column-shaped light emitting section 26 formed on the upper surface of this base 25
and a lead wire 27.27 attached to the base 26 so as to protrude downward.

Therefore, in order to attach the light emitting diode 13 to the front panel 11, first, the base 25 of the light emitting diode 13 is inserted between the arms 19, 19 of the holder 14 by expanding them around point P, and then inserting the base 25 of the light emitting diode 13 between them. 25 to arm 19° 19 protrusion 21
．． 21 and the respective tips of the retaining walls 16, 16.

When expanding the arms 19, 19, the arms 19, 19 themselves may be held and expanded;
9. Since the legs 20 can move integrally, the legs 20.
The arms 19 and 19 can also be expanded by gripping the arms 19 and 19 and deforming them so that their respective tips are close to each other.

In this case, the lead wires 27 and 27 of the light emitting diode 13 are
The leg portions 20. are passed through both sides of the connecting wall portion 17 of the holder 14.
20 in the extending direction.

In this state, the light emitting diode 13 has its base 25
The vertical position is regulated by the protrusion 21.21 and the retaining walls 16, 16, and is held by the elastic restoring force of the arms 19, 19, and is securely held in the holder 14.

Then, the holder 14 with the light emitting diode 13 attached thereto is attached to the printed circuit board 15.

That is, the legs 20.20 of the holder 14 are inserted into the holes 23.23 of the printer 1 to the board 15 while expanding the legs 20.20 around point P, and the lower surfaces of the mounting walls 18, 18 are inserted. is brought into contact with the upper surface of the printed circuit board 15, and the protrusions 22 and 22 are engaged with the lower surface of the printed circuit board 15.

In this case, the lower end of the lead wire 27 of the light emitting diode 13 can be made to protrude below the printed circuit board 15 through the electrical component mounting hole 28.28, and can be soldered to a wiring conductor (not shown) formed on the lower surface of the printed circuit board 15. Position it so that

In this state, the vertical position of the holder 14 is regulated by the mounting walls 18, 18 and the projections 22.22, and the elastic return force of the legs 20.20 ensures that the printed circuit board 15
mounted on.

Here, the holding force with which the holder A holds the light emitting diode B and the holding force with which the holder A holds the printed circuit board 32 are due to the cooperative action of the arms 19, 19 and the legs 20° 20 of the holder A. It is.

That is, the arm portions 19.19 are slightly expanded by the insertion of the light emitting diode B.

This means that the distal ends of the legs 20.20 are brought closer to each other, since the arms 19 and legs 20 of the - pair move together, and the legs 20.20 are moved closer to the printed circuit board 30. This results in an increase in the holding force.

Further, the leg portion 20.20 is connected to the hole 33.3 of the printed circuit board 32.
3 and are expanded by engaging within.

Therefore, this results in an increase in the force with which the arm portion 19.19 holds the light emitting diode B, contrary to the above.

As a result of holding each part in this manner, the holding of the light emitting diode B and the attachment of the holder A to the printed circuit board 32 become extremely reliable.

In this way, if the light emitting diode B is mounted as described above using the holder A, the holding force for the light emitting diode B and the mounting force for the printed circuit board 32 can be easily ensured. There is an advantage that even if there is a dimensional error in the holding part and the mounting part, this error can be sufficiently absorbed.

After assembling the light emitting diode 13, holder 14, and printed circuit board 15 in this way, the bottom surface of the printed circuit board 15 is immersed in a solder bath and the lead wires 27 of the light emitting diode 13 are connected.
．． 27 and the wiring conductor of the printed circuit board 15 are soldered.

In this case, the light emitting diode 130 base 25 and the light emitting part 2
6 is attached to the printed circuit board 15 via the holder 14, so it is spaced apart from the printed circuit board 15 by a predetermined distance, and is hardly affected by heat during soldering.

Next, in this assembly, the light emitting part 26 of the light emitting diode 13 is inserted into the hole 12 of the front panel 11, and the printed circuit board 15 is attached to the support pillar parts 30, 30 with screws 29 and 29.
and attach it to the front panel 11.

Wiring to the light emitting diode 13 attached to the front panel 11 in this manner is performed by connecting the lead wire on the electrical equipment main body side to the wiring conductor of the printed circuit board 15.

According to the electrical component mounting structure A configured as described above, when the light emitting diode 13 breaks down and needs to be replaced, for example, only the developed light diode 3 can be easily replaced. can.

In other words, when replacing the light emitting diode 13, first
, remove the assembly of the boulder 14 and printed circuit board 15 from the front panel 11.

In this state, the base 25 and light emitting part 26 of the light emitting diode 13 are separated from the substrate 15, so after gripping these base 25 and light emitting part 26 and removing them from the holder 14, the soldered node wires 27 and 27 are removed. can be easily removed from the substrate 15.

After replacing the light emitting diode 13 with a new one, the assembly can be reattached to the front panel 11.

Note that the electrical components to be mounted with the mounting structure according to this invention are not limited to the light emitting diodes of the above embodiments, but may be various display elements, changeover switches, etc.

As is clear from the explanation below, according to this invention,
Using a holder having a pair of arms and a pair of legs extending in a direction different from the arms, an electrical component is mounted between the pair of arms of the holder, and the pair of legs of the holder is attached to a board. Since the board is attached to electrical equipment, it is possible to separate the electrical components and the board.
This makes it possible to prevent the adverse effects of heat on the electrical components when soldering the lead wires of the electrical components to the board, and also to facilitate the replacement of the electrical components.

In addition, since the holder is attached by elastically deforming the pair of arms and legs, and the holding force and attachment force for the electrical component and the holder are obtained by the cooperative action of these arms and legs,
It is possible to improve the workability when attaching parts, and moreover, the above-mentioned holding force and attaching force can be easily ensured, and dimensional errors between parts can be absorbed.

[Brief explanation of the drawing]

1 and 2 are both longitudinal sectional views showing the main parts of a conventional electrical component mounting structure, FIG. 3 is a longitudinal sectional view showing the main parts of the electrical component mounting structure A according to this invention, and FIG. The figure is Figure 3 I
5 is a plan view of the holder used in the mounting structure A, FIG. 6 is a front view thereof, and FIG. 7 is a side view thereof. A...Mounting structure of electrical parts, 13...
Electrical parts (light emitting diode), 14... Holder, 15... Board (printed circuit board), 16.16
...Retaining wall section, 17... Connection wall section, 1
8゜18...Mounting wall part, 19.19...
・Arms, 20.20... Legs.

Claims (1)

[Scope of utility model registration request] In a structure in which an electrical component is attached to an electrical device via a holder, the holder includes a pair of retaining walls facing each other such that the distance increases from the proximal end side to the distal end side; A connecting wall connecting the retaining walls, a pair of mounting walls connected to each base end of the pair of retaining walls, and facing each other with the pair of retaining walls and the connecting wall interposed therebetween. a pair of arm portions extending from each of the mounting walls so that the respective distal ends thereof are located further forward than the distal end portion of the retaining wall portion; and an extension of the center line of the pair of arm portions; a pair of leg portions that are positioned to face each other on a line and extend from each of the mounting wall portions in a direction opposite to the arm portion, each of the portions being positioned on both end sides of the connecting wall portion; The two parts having the retaining wall part, the mounting wall part, the arm part, and the leg part are moved toward each other as a whole in a direction in which the tips of the pair of arm parts and the leg part move toward and away from each other with the connecting wall part as the center. 2 having the arms and legs so as to be rotatable;
The two parts of the holder are configured to be elastically deformable so that the distal ends of the pair of arms and legs can integrally rotate about the mounting wall in a direction in which the ends of the pair of arms and legs move toward and away from each other. The electric component is attached between the arm sections by elastically deforming the arms, and the pair of legs are attached to the board by elastically deforming the legs, and the board is attached to the electrical device. Electricity in electrical equipment 7
Parts mounting structure.