JPS6125275Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention allows LEDs (light emitting diodes) to be positioned and mounted accurately and easily.
Regarding improvements to the LED mounting mechanism.

As is well known, for example, in the case of audio equipment,
LEDs are widely used for various displays. For example, in a stereo type radio-equipped cassette tape recorder or tape deck, multiple
Multiple LEDs are arranged in a row and the LEDs are lit sequentially from one end to the other depending on the level of the recording and playback signal to display the level.
are often used in rows at regular intervals.

By the way, as mentioned above, when multiple LEDs are arranged side by side, it is necessary to install the LEDs so that the spacing and height between each LED is uniform to make the display easy to understand and not to spoil the aesthetic appearance. be. For this reason, conventionally, LEDs have been installed using jigs or separate members for positioning, but this increases the time required for positioning during installation, and makes assembly difficult and economical. However, it did not have sufficient effects, such as putting people at a financial disadvantage. Conventionally, it has been considered to form a unit with multiple LEDs lined up in a row, but this would increase costs and require a constant spacing between each LED. , there is also the inconvenience that it cannot be used with other models.

This idea was made in consideration of the above circumstances, and the purpose is to provide an extremely good LED mounting mechanism that has a simple configuration, is easy to assemble, allows accurate positioning of the LED, and is economically advantageous. do.

Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings. Fig. 1 shows the external appearance of a stereo type cassette tape recorder with radio to which this invention has been applied. In the figure, 11 is a cassette lid that can be opened and closed, 12 is a cassette tape recorder operating section, and 13 is a radio section. and a signal system operation section of the cassette tape recorder section, 14 a (preset type) tuning (operation) section of the radio section, 15, 1
6 is the left and right channel speaker sound emitting part, 17 is
FM antenna, 18 is the carrier handle.
In the figure, reference numeral 19 denotes a receiving frequency indicating section which is formed by arranging a plurality of LEDs 201, 202, ..., 20n in a row to indicate the receiving frequency.
..., 20n lights up to indicate the reception frequency.

Figure 2 shows the above LEDs 201, 202,..., 20
This shows the installation state of n. However, although LED 201 is shown in Figure 2, other LEDs
202, . . . , 20n also have a similar configuration. That is, the LED 201 has a light emitting part 221 protruding from the one end of the LED main body 211, which is approximately box-shaped and whose upper and lower sides in the figure are formed to slightly widen from one end to the other end. A connection electrode 231 is provided protruding from the other end.

The light emitting section 211 of the LED 201 is
The LED holder 24 is inserted into a through hole 241 formed at one end of the LED holder 24, which has a substantially L-shaped side surface. The other end of this LED holder 24 extends toward the end of the LED main body 211 from which the connection electrode 231 is protruded, and is approximately connected to the front panel 26 of the front cabinet 25 of the cassette tape recorder with radio. It is attached in contact with the main printed wiring board 27 which is installed vertically.

Here, a tapered portion 242 is formed on the inner surface of a portion of one end of the LED holder 24 above the through hole 241 in the figure so that the light emitting portion 221 can be easily inserted into the through hole 241. . A tapered portion 243 is also formed on the inner surface of the other end of the LED holder 24 so that the light emitting portion 221 can be easily inserted into the through hole 241. Furthermore, the above LED
The tapered part 243 of the holder 24 is the LED main body 21
1 is formed so as to cover the lower side in the figure, but the other tapered part 242 is formed shorter so that it does not cover the entire upper side of the LED main body 211 in the figure. . That is, the LED body 211 is attached to the LED holder 24 and can be seen from above in the figure.

Further, a sub printed wiring board 28 is provided substantially perpendicularly on the main printed wiring board 27. And above
The connection electrode 231 of the LED 201 is soldered 29 to the sub-printed wiring board 28 .

Here, the through hole 241 of the LED holder 24
As shown in FIG. 3, a plurality of (two in the illustrated case) are formed in a row spaced apart by a predetermined distance,
For example, an LED 20 is installed in these through holes 241, 241.
The light emitting portions 221 and 222 of No. 1 and 202 are respectively inserted therethrough.

Then, as described above, the end portion of the main printed wiring board 27 supporting the LED 201 with the LED holder 24 and the sub printed wiring board 28 is formed on the inner surface of the front panel 26 of the front cabinet 25 as shown in FIG. The light emitting part 221 is positioned in the through hole 262 formed in the front panel 26 while the light emitting part 221 is fitted and attached in the recess 261, and the LED 201 is inserted therein.
Installation will be carried out. Note that the front panel 26 has a decorative plate 30 attached with a receiving frequency scale etc. on the upper and lower sides of the through hole 262 in the figure.
31 is attached.

Here, the mounting order of the LEDs 201 will be explained. First, the connection electrode 231 of the LED 201
is soldered 29 to the sub-printed wiring board 28. next,
The light emitting part 221 of the LED 201 is attached to the LED holder 24.
The LED holder 24 is inserted into the through hole 241 of the main printed wiring board 27 in this state. Then, this main printed wiring board 27 is attached to the front cabinet 2.
5.

Therefore, according to the configuration of the above embodiment, a plurality of LEDs 201, 202,..., 20n
The distance between each LED 201, 202,..., 20n is determined by the through hole 241 of the LED holder 24.
The height of the LED holder 24 is the main printed wiring board 27.
Since it is defined by being directly attached to
Each LED 201, 202, . . . , 20n can be accurately positioned and attached. Also, LED
The holder 24 can be easily manufactured by molding a synthetic resin material, for example, and
Since the upper side of the LED body 211 in the figure is not covered, the LED 201 is placed in the LED holder 24.
After it is attached to the body, the position can be easily finely adjusted using tweezers or the like, and inspections can be carried out.

Regarding this point, as shown in Figure 4, the conventional
The LED holder 1 is configured to cover all of the upper and lower sides of the LED body 211 in the figure, so if the LED 201 is slightly misaligned after installation, it cannot be corrected. There is an inconvenience.

However, as shown in FIG. 2, by configuring the LED holder 24 so as not to cover the upper side of the LED main body 211 in the figure, the LED 201
The position can be corrected after installation, and the light emitting part 221 of the LED 201 connected to the sub-printed wiring board 28 can be easily inserted into the through hole 241 with the action of the tapered parts 242 and 243, which ultimately makes assembly easier. It can be easily done. In particular, multiple LEDs 201, 202,..., 20n
is connected to the sub printed wiring board 28, each LED
201, 202,..., 20n light emitting parts 221, 2
22, . . . , 22n can be easily inserted into the through holes 241 of the LED holder 24, which is extremely effective in manufacturing.

Furthermore, since the spacing between each LED 201, 202, ..., 20n is determined by the through hole 241 of the LED holder 24, the same LED can be used for other models by replacing the LED holder 24, which is different from the conventional This is economically advantageous compared to a system in which multiple LEDs are arranged in a row and formed integrally.

Here, attach the LED holder 24 to the main printed wiring board 2.
As the means for attaching to 7, for example, plastic bet, screws, adhesive, etc. can be used as appropriate.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

Therefore, as detailed above, according to this invention, it is possible to provide an extremely good LED mounting mechanism that has a simple configuration, is easy to assemble, can accurately position the LED, and is economically advantageous. can.

[Brief explanation of the drawing]

Figure 1 is an external view showing a cassette tape recorder with radio to which this invention is applied, Figures 2 and 3 are
The figures are a side sectional view and a perspective view showing an embodiment of the LED mounting mechanism according to this invention, respectively, and FIG. 4 is a side sectional view showing a conventional LED mounting means. 11...Cassette lid, 12...Cassette tape recorder operating section, 13...Signal system operating section, 14...
...Tuning section, 15, 16...Speaker sound emitting section, 17
...FM antenna, 18...carrier handle,
19... Reception frequency instruction section, 201 to 20n...
... LED, 211 ... LED body, 221 ... Light emitting part, 231 ... Connection electrode, 24 ... LED holder, 25 ... Front cabinet, 26 ... Front panel, 27 ... Main printed wiring board, 28 ... Sub-printed wiring board, 29... solder, 30, 31... decorative plate.

Claims (1)

[Scope of utility model registration request] The main printed wiring board that is installed in the cabinet, the LED body that is approximately box-shaped and has a light emitting part protruding from one end and a connecting electrode protruding from the other end, and the light emitting part of this LED main body is inserted through it. Having a through hole and said
an LED holder comprising a support part that covers the LED main body while leaving at least one side thereof and is attached in contact with the main printed wiring board; and an LED holder that is installed substantially perpendicularly to the surface of the main printed wiring board. and a sub-printed wiring board to which connection electrodes of the LED main body are connected.