CN2709247Y

CN2709247Y - Lighting device for deshboard

Info

Publication number: CN2709247Y
Application number: CN 200420059658
Authority: CN
Inventors: 罗伯特·查佛里
Original assignee: Wellgain Optical Communication Ltd
Current assignee: Weiying Driving Technology Co., Ltd.
Priority date: 2004-05-21
Filing date: 2004-05-21
Publication date: 2005-07-13
Anticipated expiration: 2014-05-21

Abstract

The utility model relates to a lighting device for the deshboard of motor vehicles. The utility model comprises a lighting bracket, the end part of the lighting bracket is connected with a gage pointer, a lighting source is arranged in the lighting bracket, and the light emitting from the lighting source lightens the gage pointer through a light receiving plane in the lighting bracket and the reflection of a reflection plane. The utility model is characterized in that a convex lens body for light focusing is arranged in the light path lightening from the lighting source to the light receiving plane of the gage pointer; the lighting source is a lighting diode, convex lens pieces for light focusing are arranged at the front of the lighting diode, the convex lens pieces form the convex lens body for light focusing; the lighting diode is fixed on a mounting base, electrode sheets of the lighting diode is led out from the bottom of the mounting base; the outer ends of the electrode sheets is provided with 'L' type pins; the convex lens body and the lighting source are relatively movably fixed; and the convex lens body is a compound lens body comprising at least two lenses. The utility model has high lighting efficiency, simple structure, low cost and high practicability.

Description

A kind of dial illumination dish

Technical field

The utility model relates to the instrument carrier panel of self-propelled vehicle, relates in particular to a kind of dial illumination dish.

Background technology

In the instrument carrier panel of self-propelled vehicle, for making the driving at night more clear and legible and safer, the general dial illumination dish that adopts inside that light source is set, its basic structure as shown in Figure 1, comprise illumination support 1, illumination support 1 end connects meter hand 2, in the illumination support 1 light emitting source 11 is installed, the light that light emitting source 11 is sent through illumination in the support 1 pointer sensitive surface 13 and the reflection back lighting meter hand 2 of reflecting surface 12, its common way is to adopt two SMD redness or white light-emitting diode as light emitting source 11, be integrated on the instrument circuit plate 15, after the reflection of light irradiation that light-emitting diode sends through pointer sensitive surface 13 and reflecting surface 12, thereby play the effect of illumination, this design has following shortcoming:

1, as shown in Figure 1, because the light that light-emitting diode sent forms a divergence angle beta, divergence angle beta is generally 120 °, tapered drum 14 in all illuminated support 1 of most of light that light-emitting diode sent absorbs or reflection, the aforementioned light emitting source 11 of impassabitity exposes to the light path of pointer sensitive surface 13, thereby do not have the illuminating effect to meter hand 2, light efficiency is low.

2, because the light that light-emitting diode sends forms a divergence angle beta, the light that pointer sensitive surface 13 is accepted is inhomogeneous, and meter hand 2 is when rotating in different positions, because light-emitting diode is fixed on the instrument circuit plate 15, light-emitting diode is also different for the light power of different drift angles, therefore the brightness that embodied of whole illumination card and meter hand 2 is different when different time and position, be that the surface brightness light and shade is uneven or flickering, influence whole visual effect, poor practicability.

In addition, also have employing that light-emitting diode directly is integrated in design on the meter hand 2, but because meter hand 2 is various in style, this design makes the complex structure of meter hand 2, its exploitation, manufacturing cost height.

Summary of the invention

The purpose of this utility model is to provide a kind of dial illumination dish, to solve the low and high shortcoming of cost of light efficiency in the prior art.

The technical scheme that the utility model adopted is: this dial illumination dish, comprise the illumination support, the illumination bracket end connects meter hand, in the illumination support light emitting source is installed, the light that light emitting source sent through illumination in the support the pointer sensitive surface and the reflection back lighting meter hand of reflecting surface, it is characterized in that: the convex lens body that in described light emitting source exposes to the light path of pointer sensitive surface, is provided for optically focused;

Described light emitting source is a light-emitting diode, is provided for the convex lens sheet of optically focused before light-emitting diode, and described convex lens sheet is formed for the convex lens body of optically focused;

Described light-emitting diode is fixed on the mount pad, is drawn the electrode slice of light-emitting diode by the mount pad bottom;

Described electrode slice outer end has " L " type pin;

Relative activity is installed with between described convex lens body and the light emitting source;

The compound lens body of described convex lens body for constituting by two lens at least.

The utility model beneficial effect is: in the utility model, in exposing to the light path of pointer sensitive surface, light emitting source is provided for the convex lens body of optically focused, reduce the divergence of beam of light emitting source like this by the convex lens body, make more rays expose to the pointer sensitive surface, thereby improve light efficiency by light emitting source, and, this design is less for the change of existing structure, and is simple in structure, and cost is low, even can directly transform the existing structure that is installed on the self-propelled vehicle, practical; Light-emitting diode is fixed on the mount pad, draw the electrode slice of light-emitting diode by the mount pad bottom, and the electrode slice outer end has " L " type pin, can be convenient to the installation, fixing of light emitting source, " L " type pin of electrode slice pin of being more convenient for is welded on the instrument circuit plate, further improves practicality of the present utility model; Relative activity is installed with between convex lens body and the light emitting source, and the convex lens body adopts the compound lens body that is made of two lens at least, can realize the optically focused degree of convex lens body by adjusting relevant spacing like this, make the utility model mode of operation optimization the light emitting source emitted light.

Description of drawings

Fig. 1 is the prior art structural representation;

Fig. 2 is the utility model embodiment 1 structural representation;

Fig. 3 is light emitting source and a convex lens body local structure enlarged diagram in the utility model;

Fig. 4 is the utility model embodiment 2 structural representations.

The specific embodiment

With embodiment the utility model is described in further detail with reference to the accompanying drawings below:

Embodiment 1:

According to Fig. 2 and Fig. 3, the utility model comprises illumination support 1, as shown in Figure 2, illumination support 1 end connects meter hand 2, in the illumination support 1 light emitting source 11 is installed, be provided for the convex lens body 3 of optically focused before the light emitting source 11, the light that light emitting source 11 is sent is at first after the optically focused effect of planoconvex lens body 3, the pointer sensitive surface 13 in illumination support 1 and the reflection back lighting meter hand 2 of reflecting surface 12, as shown in Figures 2 and 3, light emitting source 11 adopts two light-

emitting diodes

111, and 31, two convex lens sheets 31 of convex lens sheet that are provided for optically focused before each light-emitting diode 111 are formed for the convex lens body 3 of optically focused, like this, the curved surface at formed convex lens body 3 two ends is similar to the hump face, and the focal plane that is in corresponding convex lens sheet 31 when light-emitting diode 111 is located, and the light of planoconvex lens sheet 31 can be collimated light.

As shown in Figure 3, light-emitting diode 111 is fixed on the mount pad 112, draws the electrode slice 113 of light-emitting diode 111 by mount pad 112 bottoms, and electrode slice 113 outer ends have " L " type pin 114.

When using the utility model, as shown in Figure 2, light-emitting diode 111 is fixed on the mount pad 112, and correspondingly be installed with convex lens body 3, be connected by the motor housing of mount pad 112 with instrument circuit plate 15 or bottom, " L " type pin 114 with electrode slice 113 outer ends is welded on the instrument circuit plate 15 at last.

Like this, the utility model is provided for the convex lens body 3 of optically focused in light emitting source 11 exposes to the light path of pointer sensitive surface 13, improve light efficiency, and the utility model is simple in structure, and cost is low.

In the utility model, convex lens body 3 can be installed with relative activity between the light emitting source 11,, can adjust the distance between convex lens body 3 and the light emitting source 11 as required that is, thereby adjusts the optically focused degree of 3 pairs of light emitting source 11 emitted lights of convex lens body; Convex lens body 3 also can adopt by two or two compound lens bodies that above lens constitute, like this, can be by adjusting the spacing between the lens, in fact adjusted the focal length of convex lens sheet 31 in the convex lens body 3, similarly, realize adjusting the optically focused degree of 3 pairs of light emitting source 11 emitted lights of convex lens body, this adjustment to the optically focused degree can make the utility model mode of operation reach optimization.

In the present embodiment, light emitting source 11 adopts two light-emitting diodes 111, equally, light emitting source 11 also can adopt plural light-emitting diode 111, then be equipped with the convex lens sheet 31 of respective number in the convex lens body 3, as for structure, principle of work and the using method of other parts and noted earlier same or similar, need not give unnecessary details herein.

Embodiment 2:

According to Fig. 4, referring to figs. 2 and 3, the difference of present embodiment and embodiment 1 is, in the present embodiment, 11 of light emitting sources adopt a light-emitting diode 111, convex lens body 3 is an independent convex lens sheet 31, and is described same or similar as for structure, principle of work and using method and the embodiment 1 of other parts, repeats no more herein.

Claims

1, a kind of dial illumination dish, comprise illumination support (1), illumination support (1) end connects meter hand (2), light emitting source (11) is installed in the illumination support (1), the light that light emitting source (11) is sent in illumination support (1) pointer sensitive surface (13) and the reflection back lighting meter hand (2) of reflecting surface (12), it is characterized in that, in described light emitting source (11) exposes to the light path of pointer sensitive surface (13), be provided for the convex lens body (3) of optically focused.

2, dial illumination dish according to claim 1, it is characterized in that, described light emitting source (11) is light-emitting diode (111), and at the preceding convex lens sheet (31) that is provided for optically focused of light-emitting diode (111), described convex lens sheet (31) is formed for the convex lens body (3) of optically focused.

3, dial illumination dish according to claim 2 is characterized in that, described light-emitting diode (111) is fixed on the mount pad (112), is drawn the electrode slice (113) of light-emitting diode (111) by mount pad (112) bottom.

4, dial illumination dish according to claim 3 is characterized in that, described electrode slice (113) outer end has " L " type pin (114).

According to claim 1 or 2 or 3 or 4 described dial illumination dishes, it is characterized in that 5, relative activity is installed with between described convex lens body (3) and the light emitting source (11).

6, according to claim 1 or 2 or 3 or 4 described dial illumination dishes, it is characterized in that the compound lens body of described convex lens body (3) for constituting by two lens at least.