JP3184079U - LED lighting fixtures - Google Patents

Abstract

An LED lighting apparatus capable of forming a predetermined light distribution shape distribution in an LED light source.
A base 30, a light emitting unit 40, a light collecting cover 50, and a reflector 60 are provided. The base is made of a heat dissipation component, the light collecting cover is made of a hollow cup body 51, and the light emitting unit is formed by electrically connecting at least the LED light emitting body 41 and the electronic circuit board. The reflector has an inverted triangular pyramid and is provided at a predetermined position on the upper part of the light collecting cover to form a light emitting point of the lighting fixture. With the above structure, a multi-dimensional optical design using a light collecting cover and a reflector is used to generate light having a predetermined light distribution shape distribution, and the light collecting cover effectively collects light emitted from the LED light emitter. Light is used to avoid loss and increase the light source usage efficiency.
[Selection] Figure 2

Description

The present invention relates to an LED lighting apparatus in which a light source forms a predetermined light distribution shape distribution by utilizing a multi-dimensional optical design, and the use efficiency of the light source can be increased by effective light collection.

Please refer to FIG. FIG. 1 shows a structure of a conventional automobile lighting 20 provided with a tungsten light bulb 10 as a light source. The automobile lighting 20 emits light using the tungsten 11 as a light emitting point of the light bulb, thereby generating a light distribution shape and luminance that satisfy the legal standards. However, the tungsten light bulb 10 is gradually replaced by LEDs because it has the disadvantages of high power consumption, high thermal energy generated during light emission, and short service life. LED has advantages such as high brightness, energy saving, environmental friendliness, and excellent durability. There is a problem that it cannot be expanded. This problem is solved by changing the distribution and arrangement angle of the plurality of LEDs, but conversely, there are also disadvantages such as an increase in manufacturing cost and diffusion of LED light sources, resulting in a decrease in light collecting performance. Yes.

As another response in the industry, there is a method of substituting a conventional tungsten light bulb illuminator with an optical modular design concept. That is, the LED light source is newly redistributed according to demand to satisfy the light distribution shape and regulations of the safety lighting. However, in this method, it is necessary to newly arrange the entire luminaire, and it is necessary to develop a new mold for each luminaire in order to comply with the definition of luminance and light distribution shape in various luminaires. The problem of the cost burden of enormous mold production and inconvenience in the assembly process is increased.

  In view of the above, an object of the present invention is to provide an LED lighting apparatus capable of forming a predetermined light distribution shape distribution in an LED light source by a multi-dimensional optical design using a light collecting cover and a reflector.

In addition, the present invention effectively collects and reflects all light sources and avoids waste of the light sources, thereby improving illumination efficiency and preventing unpleasant glare at some angles. An object of the present invention is to provide an LED lighting apparatus.

Moreover, an object of this invention is to provide the LED lighting fixture which can form the light distribution shape distribution similar to the conventional tungsten light bulb.

In order to realize the above-described objects and effects, the present invention includes a base, a light emitting unit, a light collecting cover, and a reflector. The light emitting unit and the light collecting cover are fixed to one end of the base. The reflector is provided at a predetermined position in the upper part of the light collecting cover and forms a light emitting point of the lighting fixture. With the above structure, the light of the light emitting unit is condensed on the light collecting cover, then reflected toward the reflector, and further reflected by the reflector to form a predetermined light distribution shape distribution. Is irradiated.

The base is provided with a heat sink structure including heat radiating fins around the base, and a fixing part for fixing the lighting device is fitted therein.

  The light emitting unit is formed by electrically connecting at least an LED light emitter, an electronic circuit board, and two electrode pins inserted into a base.

  The reflector has an inverted triangular pyramid, and a reflection curved surface is recessed on the surface.

  The condensing cover and the reflector are formed by integral molding.

The said light collection cover consists of a hollow cup body and a fixing | fixed part. A reflective surface is provided on the inner wall of the hollow cup body. An insertion hole for fitting an electronic circuit board is provided at one end of the fixed portion that contacts the hollow cup body. Moreover, the said fixing | fixed part is fitted to the said base, and is fixed with a screw | thread. The condensing cover is formed by combining two pairs of components, and the reflector is connected to one of the two pairs of components. A first joint and a second joint are provided at the joint ends of the two pairs of parts, respectively. The first joint and the second joint are engaged by the locking hole and the convex column.

Compared with the prior art, the present invention uses a multi-dimensional optical design with a light collecting cover and a reflector to generate a predetermined light distribution shape distribution in the light of the LED illumination, and the light collecting cover effectively collects light. By doing so, there is a substantial effect that it is possible to achieve the desired lighting efficiency and to prevent the occurrence of unpleasant glare at some angles. As a result, it can be widely used in various lighting devices in place of the conventional tungsten light bulb, and the practicality and inventive step, which are superior in industrial competition, are greatly improved.

It is the schematic of the light distribution shape distribution in the illumination for motor vehicles by which the conventional tungsten light bulb is arrange | positioned. It is an exploded perspective view of the present invention. It is an assembly perspective view of the present invention. It is sectional drawing at the time of cut | disconnecting this invention to the vertical direction. It is sectional drawing at the time of cut | disconnecting this invention to the vertical direction from another angle It is the schematic of the light collection cover formed by combining two parts in this invention. It is the schematic of the light distribution shape distribution at the time of attaching this invention to an illuminating device.

Please refer to FIG. 2 to FIG. The LED lighting apparatus according to the present invention includes a base 30, a light emitting unit 40, a light collecting cover 50, and a reflector 60.

Around the base portion 30, a heat sink structure including the heat radiation fins 31 is provided in a protruding manner (however, the heat sink structure is not limited to this). The heat sink structure has a two-stage column, and a fixing component 32 coupled to the lighting device is fitted on the upper stage.

The light emitting unit 40 is fixed to the top end of the base 30, and at least the LED light emitter 41, the electronic circuit board 42, and two electrode pins 43 inserted into the base 30 are electrically connected.

The light collecting cover 50 includes a hollow cup body 51 and a fixing portion 52. Please refer to FIG. 4 and FIG. On the inner wall of the hollow cup body 51, a reflective surface 53 subjected to electroplating is provided. An insertion hole 54 for fitting the electronic circuit board 42 is provided at one end of the fixed portion 52 that contacts the hollow cup body 51. The fixing portion 52 is fitted on the upper stage of the base portion 30 and is screwed with a screw 55 with the fixing component 32 sandwiched between the fixing portion 52 and the base portion 30.

The reflector 60 has an inverted triangular pyramid shape, and a concave arcuate reflection curved surface 61 is provided on the surface thereof. The reflector 60 is provided at a predetermined position above the light collecting cover 50 and forms a light emitting point of the lighting fixture. Thereby, the altitude at which the reflector 60 is provided can be adjusted according to the demand for different lighting devices.

Please refer to FIG. The condensing cover 50 and the reflector 60 are formed by integral molding. The hollow cup body 51 and the fixing portion 52 in the light collecting cover 50 are formed by combining two pairs of components, and the reflector 60 is connected to one of the two pairs of components. Next, referring to FIG. A first joining portion 511 and a second joining portion 512 are provided at the joining end portions of the two pairs of parts, respectively. The first joint portion 511 and the second joint portion 512 are engaged by the locking hole 513 and the convex column 514.

As described above, the structure of the present invention uses the light collecting and light reflecting actions by the reflector 60 and the light collecting cover 50 that have inverted triangular pyramids. That is, all the light from the LED light emitter 41 is reflected toward the reflector 60 that is the light emission position of the light bulb (same as tungsten), and the reflector 60 forms the light emitting point of the light bulb. A light emitting effect similar to that of the light shape is emitted outward.

Further, the light emitted from the LED light emitter 41 of the present invention is first projected onto the light collecting cover 50 and then reflected toward the reflector 60 by the light collecting cover 50. As a result, the light from the LED light emitter 41 is effectively collected by the light collecting cover 50, avoiding the waste of the light source, improving the illumination efficiency, and causing unpleasant glare at some angles. To prevent.

Please refer to FIG. When the present invention is attached to the lighting device and the power is turned on, the light of the LED light emitter 41 is first projected onto the light collecting cover 50. The condensed light is reflected toward the reflection curved surface 61 of the reflector 60 having an inverted triangle by the reflection surface 53 on the inner wall of the light collection cover 50. Further, the light is reflected toward the reflection surface 71 of the illumination device 70 by the reflection curved surface 61 and then irradiated outward. As described above, a required illumination light distribution shape distribution and a desired illumination brightness can be obtained.

(Conventional technology)
10 Tungsten bulb 11 Tungsten 20 Automotive lighting (present invention)
30 Base 31 Radiating fin 32 Fixed component 40 Light emitting unit 41 LED light emitter 42 Electronic circuit board 43 Electrode pin 50 Condensing cover 51 Hollow cup body 52 Fixed portion 53 Reflecting surface 54 Insertion hole 55 Screw 56 Fixed component 511 First joint portion 512 Second joint 513 Locking hole 514 Convex column 60 Reflector 61 Reflecting curved surface 70 Illuminating device 71 Reflecting surface

Claims (6)

An LED lighting device comprising a base, a light emitting unit, a light collecting cover, and a reflector,
The light emitting unit and the light collecting cover are fixed to one end of the base,
The reflector is provided at a predetermined position in the upper part of the light collecting cover, and forms a light emitting point of a lighting fixture,
The light of the light emitting unit is condensed on the light collecting cover, then reflected toward the reflector, and further reflected by the reflector to form a predetermined light distribution shape distribution. An LED lighting apparatus characterized by the above. The base portion is provided with a heat sink structure projecting from heat dissipating fins around the base portion, and a fixing component for fixing the lighting device is fitted therein.
2. The LED lighting apparatus according to claim 1, wherein the light emitting unit is formed by electrically connecting at least an LED light emitter, an electronic circuit board, and two electrode pins inserted into a base portion. The LED lighting apparatus according to claim 1, wherein the reflector has an inverted triangular pyramid, and a reflection curved surface is recessed on a surface thereof. The LED lighting apparatus according to claim 1, wherein the light collecting cover and the reflector are formed by integral molding. The condensing cover is composed of a hollow cup body and a fixing part,
A reflective surface is provided on the inner wall of the hollow cup body,
At one end of the fixed portion that contacts the hollow cup body, a fitting hole for fitting a light emitting unit is provided,
The LED lighting device according to any one of claims 1 to 4, wherein the fixing portion is fitted to the base portion and fixed with a screw. The condensing cover is a combination of two pairs of components, and the reflector is connected to either of the two pairs of components,
At the joint ends of the two pairs of parts, a first joint and a second joint are provided respectively.
The LED lighting apparatus according to claim 5, wherein the first joint and the second joint are engaged by a locking hole and a convex column.

Images