JPH0328330Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a two
This invention relates to a level meter structure consisting of assembling a resin case of more than 100 pieces and attaching a display panel thereto.

The structure of a conventional level meter will be explained with reference to FIG. a is a front view showing the level meter attached to the front panel of the tape recorder, b, c,
d is an exploded perspective view, and e is an assembled side view. In the figure, a square hole 2 is provided in a front panel 1. The level meter 3 consists of a resin case 4 and light emitting diodes 5 arranged in two rows, and is attached to a printed wiring board 6. The display panel 7 also has a square hole 8. In figure e, 9,9
is a boss molded integrally with front panel 1,
The printed wiring board 6 is attached with screws 10, 10.
11 is a terminal of the light emitting diode 5.

Next, the assembly of this level meter structure will be described. First, the display panel 7 is fixed on the back surface of the front panel 1 at a position corresponding to the square hole 2 using adhesive or glue. Next, the terminals 11 of the light emitting diode 5 are inserted into the predetermined holes of the printed wiring board 6 and soldered. Thereby, the level meter 3 is fixed to the printed wiring board 6. In this state, insert the tips of the light emitting diodes 5 into the square holes 8 of the display panel 7 fixed to the front panel 1, and tighten the screws 10, 10.
Fix it by. That is, a printed wiring board 6 having a level meter 3 is fixed to the front panel 1.

By the way, the following drawbacks are found in the above-mentioned conventional level meter structure.

(1) When attaching the level meter 3 to the printed wiring board 6, all the terminals 11 of the two rows of light emitting diodes 5 must be inserted into predetermined holes in the printed wiring board 6 at the same time, which is extremely difficult. . However, in order to improve this, if the resin case 4 is simply divided into two parts, left and right, each having a single row of light emitting diodes 5, the accuracy of the relative position between the two resin cases will deteriorate. Unfavorable in appearance.

(2) Since the level meter 3 and the display panel 7 are each attached to separate members, the positional accuracy between the light emitting diode 5 and the square hole 8 of the display panel 7 is poor; This requires a large gap between the light emitting diode 5 and the light emitting diode 5, which is not desirable in terms of appearance.

(3) When attaching the display panel 7, means such as gluing and pasting are required, resulting in an increase in costs.

The present invention was developed in order to eliminate the above-mentioned drawbacks.The resin case is divided into two or three or more parts, and connecting parts are integrally molded in each part, and the display panel is attached to the resin with integrally molded hooks. By attaching it to a manufactured case, it provides a level meter structure with high positional accuracy, good appearance, and low cost.

Hereinafter, the present invention will be described with reference to embodiments. FIG. 2 is a diagram showing an embodiment of the present invention, in which a is a display panel, b and c are perspective views showing left and right resin cases, respectively, and d is an assembled side view. b, c
In the figure, reference numeral 12 indicates the left side portion of the resin case of the level meter which is divided into two parts, and numeral 13 indicates the right side portion thereof, each of which has a single row of light emitting diodes 5. Each of the hooks 14, 14, 15, 15 is integrally molded with the left resin case 12 or the right resin case 13, has elasticity in the longitudinal direction of the resin cases 12, 13, and has a display panel 7 similar to the conventional example. support. The arms 16, 16, 17, 17 are provided at corresponding positions on the side surfaces of the left and right resin cases 12, 13, and the arms 16, 16 have holes 18, 18.
Pins 19, 19 are provided on the back surfaces of 7, 17,
Both are integrally molded with resin cases 12 and 13. Then, the pin 19 is fitted into the hole 18, and both resin cases 12 and 13 are assembled, maintaining the accuracy of relative position.

Next, the assembly of the level meter structure of the present invention will be described. First, the terminal 11 of the light emitting diode 5 similar to the conventional example attached to the resin case 12 is inserted into a predetermined hole of the printed wiring board 6 similar to the conventional example.
The resin case 12 is attached to the printed wiring board 6. Next, while inserting the terminal 11 of the resin case 13 into the predetermined hole of the printed wiring board 6, the pin 19 of the arm 17 is inserted.
into the hole 18 of the arm 16 and remove the resin case 13.
At the same time, the relative positions of the left and right resin cases 12, 13 are regulated to maintain their accuracy. Thereafter, the terminals 11 are soldered to complete the attachment of the resin cases 12 and 13 to the printed wiring board 6. Next, align the square hole 8 of the display panel 7 with the light emitting diode 5, insert the lower part of the display panel 7 into the hooks 14, and insert the upper part into the hook 1.
5 and 15 to complete the installation of the display panel 7 to the resin cases 12 and 13. Then, as mentioned above,
The printed wiring board 6 to which the resin cases 12 and 13 and the display panel 7 are attached is attached with the screw 1 as in the conventional example.
0 and 10 to fix it to the boss 9 of the front panel 1, completing all the installation work.

In the above-described embodiment, a hook is provided on the resin case to support the display panel, but as shown in FIGS. 3a and 3b, the hook 7a may be provided on the display panel 7 by integral molding. .

Also, for the connecting arms of the left and right resin cases, it is possible to use one set instead of two as in the above embodiment.
Further, the shape of the hole and the pin may be any shape such as a round corner, or may be formed by fitting a convex portion and a concave portion.

Furthermore, when it comes to joining the left and right resin cases, there is no need to provide any special arms for joining, but instead a concave part, for example a V-shaped groove, is used on one side of the case, and a convex part on the other case.
For example, by providing a V-shaped protrusion and fitting the two together,
The same effects as in the above embodiment can be obtained.

If more light emitting diodes are required, the resin cases incorporating single row light emitting diodes can be further arranged horizontally using the same connections as above.
The number of resin cases is not limited to two, and the same effect can be obtained even when there are three or more resin cases.

The present invention has the above-mentioned structure and function, and maintains the positional accuracy of the level meter itself by dividing the resin case of the level meter and providing fitting means between each resin case. Since it is a single row of light emitting diodes, it can be easily attached to a printed wiring board, greatly improving the workability of attaching it. For this reason, even if the terminals of each light emitting diode are slightly deformed, they no longer become impossible to attach as in the past.

In addition, a hook integrally molded with either the resin case of the level meter or the display panel allows
It is now possible to directly attach the display panel to the resin case and does not require any bonding material, resulting in low cost and extremely good appearance accuracy, i.e. the gap between the light emitting diode and the display panel square hole is small, and It is possible to enjoy the effect of obtaining a level meter structure with less bias.

[Brief explanation of drawings]

Figure 1 shows the structure of a conventional level meter.
A is a front view showing the level meter attached to the front panel, b, c, and d are perspective views showing the disassembled state, b is the front panel, c is the display panel, d is the level meter and printed wiring board, e is an assembly side view, Fig. 2 is a diagram showing an embodiment of the present invention, and a
1 is a display panel, b and c are perspective views showing a resin case, d is an assembled side view, FIG. 3 is a diagram showing another embodiment of the present invention, a is a perspective view showing a display panel, b is an assembled side view. 1... Front panel, 2... Square hole, 3... Level meter, 4... Resin case, 5... Light emitting diode, 6... Printed wiring board, 7... Display panel, 7a... Hook, 8 ...Square hole, 9...Boss,
10... Screw, 11... Light emitting diode terminal,
12, 13... Resin case, 14, 15... Hook, 16, 17... Arm, 18... Hole, 19...
pin.

Claims (1)

[Scope of utility model registration request] A plurality of light emitting diodes are incorporated therein, and each has an integrally molded connecting part for connecting each other to the other side, and further, one of the connecting parts has a recess, and the other has a convex that fits into the recess. a plurality of resin cases having portions integrally molded with the connecting portion; a printed wiring board to which the light emitting diode and the resin case are attached; and a plurality of resin cases integrally molded with either the resin case or the display panel. A level meter structure comprising the display panel fixed to the resin case with a hook.