JP4196284B2 - Vehicle indicator light - Google Patents

Description

  The present invention relates to a vehicular indicator lamp using a light emitting diode (LED) as a light source.

An incandescent lamp capable of diffusing light irradiation and extending a display range is widely used as a light source of a vehicle indicator lamp that displays the size of a vehicle body.
However, since incandescent lamps generate a large amount of heat and consume power and are unsuitable for vehicles, light emitting diodes have been used as light sources for vehicle display lamps.

In addition, there is a vehicle side lamp as shown in FIG. 5 in a vehicle display lamp using an incandescent lamp as a light source .
The vehicle side lamp includes an attachment base plate C to which a socket member B that supports the incandescent lamp A is attached, a glass cover D that covers the incandescent lamp A, the socket member B, and the attachment base plate C, and an attachment base plate C. A waterproof ring E interposed between the glass covers D is provided.
Then, the mounting base plate C is attached to the side frame G or the like of the vehicle body via the mounting bracket F.

Conventionally, as a vehicular indicator lamp using light emitting diodes, for example, in Utility Model Registration No. 3038183 , a plurality of light emitting diodes having different light irradiation directions are mounted on one substrate, and a plurality of light emitting diodes are mounted. A vehicle indicator lamp in which substrates are assembled at an angle to each other is described.
Utility Model Registration No. 3038183

  The vehicle display lamp according to Patent Document 1 is a light irradiation diode that extends the display range by arranging a number of light emitting diodes that are linear in light irradiation on a plurality of substrates with different light irradiation directions. In addition to ensuring diffusibility, it is intended to utilize the low heat generation and power consumption that are the characteristics of light-emitting diodes.

However, in the vehicular indicator lamp according to Patent Document 1, the structure around the light-emitting diode is significantly different from that of the incandescent lamp, so that the peripheral components when the light source is the incandescent lamp cannot be used. Therefore, there is a problem that the manufacturing cost becomes high.

The present invention has been made in consideration of such problems, and it is an object of the present invention to provide a vehicular indicator lamp that can use peripheral components when the light source is an incandescent lamp and is inexpensive to manufacture. And

  In order to solve the above-described problems, the vehicle indicator lamp according to the present invention employs means described in each of the claims.

That is, the vehicle indicator lamp according to claim 1 of the present invention is:
A mounting base plate for the light source is mounted, a light source and a glass cover which covers the attachment base plate, is interposed between the mounting base plate and the glass cover, the vehicle indicator light and a waterproofing ring In
The light source comprises a first group of light emitting diodes and a second group of light emitting diodes;
The light emitting diodes of the first group are arranged in the center of the front surface of the base body made of a non-circular insulating synthetic resin material having a conductor pattern printed on the back surface in a direction perpendicular to the substrate body. And
The light emitting diodes of the second group are arranged radially on the outer periphery of the light emitting diodes of the first group via a pedestal so that the light irradiation direction is inclined upward with respect to the substrate body, and the base body Arrange so that it does not protrude outward from the body,
Between the second group of light emitting diodes arranged radially, circuit elements connected to the plurality of light emitting diodes are arranged so as not to be an obstacle to light irradiation of the light emitting diodes, and a substrate is configured,
The substrate is characterized in that attached to the mounting base plate to be in contact with the opening of the glass cover.

The invention according to claim 2 of the present invention is
The vehicle indicator lamp according to claim 1,
The second group of light emitting diodes is:
The bottom is in contact with an inclined surface provided on the outer top of the pedestal fixed on the substrate body, and the lead wire is inserted into a wiring groove provided in the pedestal.
It is characterized by.

The invention according to claim 3 of the present invention is
The vehicular indicator lamp according to claim 1 or 2,
The light emitting diode is
Covered with a common lens body that diffuses light irradiation
It is characterized by.

The vehicle indicator lamp according to the present invention is mounted on a single substrate so that a light emitting diode and a circuit element do not protrude outward from the substrate , using the space of the glass cover used in the existing incandescent lamp. Therefore, the structure around the light-emitting diode can be avoided from being significantly different from that of an incandescent lamp, so that the surrounding parts when the light source is an incandescent lamp can be used, and the manufacturing cost is low. There is an effect to become.

In particular, in the present invention, a first group of light emitting diodes is arranged in the center of the surface of one base body in a direction in which light irradiation is perpendicular to the base body, and the substrate body is provided on the outer periphery thereof. Since the second group of light emitting diodes is arranged radially in a direction inclined upward, the direction of light irradiation can be set three-dimensionally, so that the display range can be expanded by light irradiation. There is a sufficient effect.

In the present invention, since the circuit element is mounted on the substrate using the space between the light emitting diodes of the second group , the circuit element is not obstructed by the light irradiation of the light emitting diodes. There is an effect that the element is mounted on the substrate.

In addition, by mounting the second group of light emitting diodes on a substrate via a pedestal having a specific shape, the lead wires of the second group of light emitting diodes are exposed in a bent state. The light irradiation direction of the light emitting diode of the second group is accurately fixed, and the light irradiation direction of the light emitting diode of the second group is reliably maintained.

Furthermore, since the light irradiation of each of the light emitting diodes is diffused by the lens body, the display range can be expanded more effectively.

  Hereinafter, the best mode for carrying out a vehicular indicator lamp according to the present invention will be described with reference to the drawings.

  In this embodiment, almost the same as the prior art shown in FIG. 5, the exterior member 1 including the glass cover 11, the mounting base plate 12, the mounting bolt 13, the wiring cord 14, and the waterproof ring 15 is provided as a vehicle side lamp. It shows what is used.

The glass cover 11 is a special glass having a relatively large thickness and colored in a necessary display color such as yellow or red, and is formed in a hollow spindle shape.

The mounting support plate 12 is formed into a disc shape from a synthetic resin material having an insulating property, and in contact with the open portion of the glass cover 11, forms a housing space interior member 2 will be described later, it is accommodated .

The mounting bolt 13, the two through an angle of 180 degrees in the vicinity of the outer peripheral edge of the mounting base plate 12 is provided through, with a fitting to the body of the vehicle, the electric circuit of the vehicle , It becomes a connection terminal to one pole.

One wiring cord 14 is provided in the vicinity of the center portion of the mounting base plate 12 and serves as a connection terminal to the other pole of the electric circuit of the vehicle.

The waterproof ring 15 is formed of a rubber material or a synthetic resin material in a ring cap shape, covers the contact portions of the glass cover 11 and the mounting base plate 12 from the outside, and covers the seam in a watertight manner.

An interior member 2 including a substrate 21, a light emitting diode 22, a pedestal 23, a circuit element 24, a lens body 25, and the like is attached to the mounting base plate 12 of the exterior member 1.

As shown in FIG. 2, the substrate 21 is printed on a non-circular substrate body 21a made of an insulating synthetic resin and the back surface of the substrate body 21a (the surface on the mounting base plate 12 side of the exterior member 1). The conductive pattern 21b is made up of a through hole 21c, a wiring cord hole 21d, and a screw hole 21e that penetrate the board body 21a.

Wherein the wire cord hole 21d, the is connected to the conductor pattern 21b, the wire cord 14 of the outer member 1 is retracted, the wiring cord 26 connected to the mounting bolts 13 of the outer member 1 is inserted.

  The substrate 21 is attached to the mounting base plate 12 of the exterior member 1 with screws 27 inserted through the screw holes 21e.

Oite the mounting of the substrate 21, only the conductor pattern 21b on the back surface of the substrate body 21a is provided, since the unnecessary projection is not present, the substrate 21 and the mounting base plate 12 of the outer member 1 The board 21 is placed close to the above-described socket member B of the prior art shown in FIG.

The light emitting diodes 22 are composed of a first group of light emitting diodes 22a and a second group of light emitting diodes 22b.

Three light emitting diodes 22 a of the first group are arranged almost radially at the center of the surface of the substrate 21, and light irradiation is directed in a direction perpendicular to the substrate 21.
Light emitting diode 22a of the first group, and the lead wire is inserted into the through hole 21c from the surface of the substrate 21, the by being connected to the conductor pattern 21b, are mounted on the substrate 21.

Six light emitting diodes 22b of the second group are arranged radially around the outer periphery of the light emitting diodes 22a of the first group, and light irradiation is directed in a direction in which the light irradiation is inclined upward with respect to the substrate 21. It has been.

The light emitting diodes 22b of the second group are mounted on the substrate 21 by having lead wires inserted through the through holes 21c of the substrate 21 from the surface through the pedestal 23 and connected to the conductor pattern 21b.
At this time, as is apparent from FIG. 1A, the second group of light emitting diodes 22b is arranged so as not to protrude from the outer peripheral portion of the base body 21a.

That is, the light emitting diode 22 (base 23) is a dress which projects into the interior of the glass cover 11 from the substrate 21 (mounting base plate 12 of the outer member 1).

As shown in detail in FIG. 3, the pedestal 23 is formed in a deformed rectangular block of an insulating synthetic resin material, and the bottom of the second group of light emitting diodes 22 b is in contact with the upper outer side. An inclined mounting surface 23a having an angle θ of approximately 20 degrees is provided .
In addition, a wiring groove 23b into which the lead wire of the light emitting diode 22b of the second group is inserted is provided therein.
Further, the wiring groove 23b is provided with an open portion 23c that is open to the outside in the middle portion in order to facilitate the insertion work of the lead wires of the second group of light emitting diodes 22b.

The circuit element 24 includes a diode 24 a and a resistor 24 b constituting a circuit connected to the light emitting diode 22.
The circuit element 24 is mounted on the substrate 21 by the lead wire being inserted from the surface into the through hole 21c of the substrate 21 and connected to the conductor pattern 21b.
The circuit element 24 is arranged in a space between the light emitting diodes 22b of the second group arranged in a radial manner, and is prevented from obstructing the light irradiation of the light emitting diodes 22.
That is, the circuit element 24 is a dress which projects into the interior of the glass cover 11 from the substrate 21 (mounting base plate 12 of the outer member 1).

The lens body 25 is made of a transparent synthetic resin material and is formed in a cup shape with a groove such as a diamond cut formed on the inner surface, and the surface of the substrate 21 including the mounted light emitting diode 22 is also covered. It becomes.
The lens body 25 is attached to the mounting base plate 12 of the exterior member 1 with screws 28 and an adhesive (waterproof structure) so as to be fitted to the substrate 21.

According to this embodiment, since the light emitting diodes 22 and the like are mounted on the front side of the substrate 21 of the interior member 2 and the back side is flat, the substrate 21 is attached to the mounting base plate 12 of the exterior member 1 as shown in FIG. Since the above-described socket member B of the technology can be substituted (see FIG. 4), the conventional exterior member 1 shown in FIG. 5 can be used as it is.
Therefore, peripheral components in the case where the light source is the incandescent lamp A can be used, and the manufacturing cost is reduced.
Incidentally, the interior member 2, the attachment to the mounting base plate 12 of the outer member 1 of the substrate 21, if there is a reasonable design is of the exterior member 1, relatively expensive glass cover 11 only Alternatively, the mounting base plate 12 and the like can be newly produced.

In addition, since the direction of light irradiation of the light emitting diode 22 is set three-dimensionally by the combination of the first group of light emitting diodes 22a and the second group of light emitting diodes 22b, the display range is expanded by light irradiation. Is done enough.
Then, since the light irradiation set in the three-dimensional direction is further diffused by the lens body 25, the display range is expanded more sufficiently by the light irradiation.

In addition, since the second group of light emitting diodes 22b is mounted on the substrate 21 via the pedestal 23, it is avoided that the lead wires of the second group of light emitting diodes 22b are bent. et al are.
Further, the direction of light irradiation of the light emitting diodes 22b in the second group is accurately fixed.
Therefore, the light irradiation direction of the light emitting diode 22b of the second group is reliably maintained, and the accuracy of the light display function is enhanced and the durability is also enhanced.

As described above, in addition to the illustrated examples, the light irradiation directions of the light emitting diodes 22b in the second group can be made different.

The vehicular indicator lamp according to the present invention can be applied to a wide range of light emitting displays other than the vehicle side lamp.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall view of the best mode for carrying out a vehicular indicator lamp according to the present invention, in which (A) is a plan sectional view and (B) is a partially cut side view. It is an enlarged rear view of the principal part of FIG. It is an expanded sectional view of the other principal part of FIG. 1 is a plan view showing an assembly example. It is a side view which shows the general structure and attachment structure of the vehicle indicator lamp which uses the conventional incandescent lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exterior member 11 Glass cover 12 Mounting base plate 15 Waterproof ring 2 Interior member 21 Board | substrate 21b Conductor pattern 22 Light emitting diode 22a 1st group of light emitting diode 22b 2nd group of light emitting diode 23 Base 23a Mounting surface 23b Wiring groove 24 Circuit element 25 Lens body

Claims (3)

A mounting base plate for the light source is mounted, a light source and a glass cover which covers the attachment base plate, is interposed between the mounting base plate and the glass cover, the vehicle indicator light and a waterproofing ring In
The light source comprises a first group of light emitting diodes and a second group of light emitting diodes;
The light emitting diodes of the first group are arranged in the center of the surface of the base body made of a non-circular insulating synthetic resin material having a conductor pattern printed on the back surface in a direction perpendicular to the substrate body. And
The light emitting diodes of the second group are arranged radially on the outer periphery of the light emitting diodes of the first group via a pedestal so that the light irradiation direction is inclined upward with respect to the substrate body, and the base body Arrange so that it does not protrude outward from the body,
Between the second group of light emitting diodes arranged radially, circuit elements connected to the plurality of light emitting diodes are arranged so as not to be an obstacle to light irradiation of the light emitting diodes, and a substrate is configured,
A vehicle indicator lamp, wherein the substrate is attached to a mounting base plate that is in contact with the opening of the glass cover . The second group of light emitting diodes is:
The bottom is in contact with an inclined surface provided on the outer top of the pedestal fixed on the substrate body, and the lead wire is inserted into a wiring groove provided in the pedestal.
The vehicle indicator lamp according to claim 1 . The light emitting diode is
Covered with a common lens body that diffuses light irradiation
The vehicular indicator lamp according to claim 1 or 2 .

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