CN202065792U

CN202065792U - Light emitting diode (LED) spot lamp

Info

Publication number: CN202065792U
Application number: CN2011201158796U
Authority: CN
Inventors: 王志建
Original assignee: Shenzhen Chang Long Sheng Optoelectronic Technology Co ltd
Current assignee: Shenzhen Chang Long Sheng Optoelectronic Technology Co ltd
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2011-12-07
Anticipated expiration: 2021-04-08

Abstract

The utility model relates to the field of illumination and discloses a light emitting diode (LED) spot lamp, which comprises an LED illuminating plate and a casing. The LED illuminating plate is directly installed at the bottom of a reflecting cup in attaching mode, the LED illuminating plate is formed by connecting an LED chip or a surface mount type light emitting diode and a circuit board, and the reflecting cup is provided with a reflecting face in a horn opening shape as a whole. The LED spot lamp has good condensation effect, good light spot distribution and good heat dissipation effect.

Description

A kind of LED shot-light

Technical field

The utility model relates to lighting field, relates in particular to a kind of LED shot-light.

Background technology

Ornamental shot-light in the market mainly is the metal halide quartz lamp, and this shot-light is luminous again after the filament heating, and luminous efficiency is low, and power consumption is big, and caloric value is very big, has unsafe factor, and its life-span is very short.

Light emitting diode has luminous efficiency height, advantage that caloric value is little, colors such as the red, green, blue of existing high brightness, white, Huang at present, and, can present full color by red green, blue combination, and little power consumption, the life-span is long.

The life-span of light emitting diode can reach 100,000 hours considerably beyond the life-span of quartz spot lamp.Also occurred now the shot-light that adopts LED to make on the market, it is to adopt the light emitting diode of finished product to be welded on the printed circuit board to make.Because each light emitting diode has the optically focused effect, the light of all light emitting diodes can not be gathered in the same scope, thereby the hot spot that forms in the place ahead of lamp is uneven, there are several luminous tubes just can see several specks, the brightness that can not reach all luminous tubes superposes in the central area, on irradiated object, just high illumination and brightness can not be obtained, better decorative lighting effect can not be played.

Simultaneously can not reach the colour mixture effect that different colours forms.Reach hot spot and bigger beam angle uniformly, will reach enough brightness simultaneously, just need to adopt a large amount of luminous tubes, power consumption is big, and volume is big, the cost height.The disclosed patent of patent publication No. CN2515518 adopts the light emitting diode cost of existing encapsulation to be assembled exactly, and the light of all luminous tubes can not flock together.The disclosed patent of patent publication No. CN01246634 is to adopt the finished product of LED of existing Piranha encapsulation to be assembled, and utilizes lens light gathering.But this structure optically focused is limited in one's ability, and should not dispel the heat on the structure.The disclosed patent of patent publication No. CN1310790 in addition, its reflecting drum is the curved surface of single curvature vertically, provides collimated light beam, and light beam is too concentrated, and this is not suitable for the application of big beam angle.The existing LED shot-light that utilizes lens light gathering, the first, all light-ray condensings that can not effectively LED be sent, the second, for the situation of using a plurality of LED, be can't be with all light-ray condensings to the central area with single, simple lens, light losing is very big.

The utility model content

The purpose of this utility model is to provide a kind of and has good spotlight effect, good hot spot distributes and can dispel the heat well, and the life-span is long, cost is low, the LED shot-light of little power consumption.

The utility model provides a kind of LED shot-light, and it comprises: LED luminous plaque and housing;

The LED luminous plaque directly is close to the bottom that is installed in reflector, and the LED luminous plaque is to be connected by led chip or paster type light emitting type and circuit board to make, and reflector has the reflecting surface that totally is the horn mouth shape.

Advantage of the present utility model is:

1, owing to is directly to adopt led chip or paster type light emitting type welding, not to adopt the finished product LED that has support, the back side of circuit board does not have pad, therefore circuit board is convenient to directly directly combine closely with the shell that plays thermolysis, make light source that good heat radiation be arranged, improve the service life of light source;

2, owing to adopt led chip or paster type light emitting type, both help miniaturization, can obtain the luminous intensity of needs again, be more convenient for taking cooling measure, reduced production cost simultaneously;

3, structure of the present utility model is compared with the structure of various employing lens light gatherings, collected light more effectively, light loss minimum;

4, the utility model is simple in structure, is suitable for industrial production in enormous quantities, and applied range, can make shot-light, flashlight, head lamp, bulb etc.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:

Fig. 1 is the structural representation of the utility model first embodiment;

Fig. 2 is a luminous plaque schematic diagram of the present utility model;

Fig. 3 is the structural representation of the utility model second embodiment.

The specific embodiment

Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.

First embodiment:

Please refer to Fig. 1, present embodiment provides a kind of LED shot-light, and it comprises: LED luminous plaque 1 and housing, described housing are to be connected to form by reflector 2, shell 3, back cover 4 and face shield 6.

LED luminous plaque 1 is connected to extraction electrode 5 on the bonnet by lead 10.Extraction electrode 5 on the bonnet 4 is used to connect power supply, uses powered by direct current.

Reflector 2 has the reflecting surface 7 that totally is the horn mouth shape, and reflecting surface 7 is connected and composed by a plurality of convex surface 71 head and the tail, and reflecting surface 7 surfaces of reflector 2 are coated with reflectorized material.

LED luminous plaque 1 has one or more led chips 8 directly to be fixedly welded on the printed circuit board (PCB), and all LED adopt and are connected in series, and the glue film that shields is arranged on the surface of described led chip.By the light that LED luminous plaque 1 sends, to a sphere of reflector 2, light is reflected to the place ahead in the scope of axle center certain distance in certain angular range internal radiation.The critical angle that has a relative axis, the light that LED luminous plaque 1 sends directly penetrate forward during less than this critical angle; Light then is mapped on the reflector 2 greater than this critical angle, and the little reflecting surface 7 of each on the face that is reflected reflexes to the place ahead in the scope of center certain distance, also is that light is gathered gathering and the stack that has realized light in certain scope.

Because reflector 2 has a plurality of convex surfaces 71 vertically, therefore, the light greater than the different angles of critical angle can both be reflexed in the predetermined central area; Again because reflector 2 along a plurality of convex surfaces 71 that distribute, makes light evenly to distribute around axis on every side.

Shell 3 is to adopt metal to make, and shell 3 is close at the back side of LED luminous plaque 1, reaches the purpose of heat radiation.In the present embodiment, described reflector 2 separates with shell 3.

The electrode of LED luminous plaque 1 is connected on the extraction electrode 5 of bonnet 4 by lead 10.Bonnet 4, shell 3 and reflector 2 usefulness screws tighten.The front end of reflector 2 has the good face shield of printing opacity 6 to play blocks air and protection luminous plaque 1 and reflecting surface 7.

Second embodiment:

Please refer to Fig. 1, present embodiment provides a kind of LED shot-light, and it comprises: LED luminous plaque 1, reflector 2, bonnet 4 and face shield 6.

LED luminous plaque 1 is connected to extraction electrode 5 by lead 10.Extraction electrode 5 on the bonnet 4 is used to connect power supply, uses powered by direct current.The difference of it and first embodiment is that reflector 2 and shell 3 are incorporate.For good heat radiation, the part of reflector 2 and the metal one of shell 3 usefulness.There is insulated ring to separate between extraction electrode 5 and the bonnet 4.

The light source of LED luminous plaque of the present utility model can be a led chip, also can be adopting surface mounted LED.

Owing to adopt led chip or adopting surface mounted LED, both helped miniaturization, can obtain the luminous intensity of needs again, be more convenient for taking cooling measure, reduced production cost simultaneously; Owing to adopt the reflector that is made of a plurality of convex surfaces, the light that effectively LED is sent is assembled again, reaches the effect of strengthening the central area illumination.

Structure of the present utility model is compared with the structure of various employing lens light gatherings, collected light more effectively, light loss minimum, the utility model is simple in structure, be suitable for industrial production in enormous quantities, and applied range, shot-light, flashlight, head lamp, bulb etc. can be made.

More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. a LED shot-light is characterized in that, comprising: LED luminous plaque and housing;

The LED luminous plaque directly is close to the bottom that is installed in reflector, and the LED luminous plaque is connected by led chip or paster type light emitting type and circuit board to be made, and reflector has the reflecting surface that totally is the horn mouth shape.

2. LED shot-light according to claim 1 is characterized in that: reflecting surface is connected and composed from beginning to end by a plurality of convex surfaces.

3. LED shot-light according to claim 1 is characterized in that: reflecting surface is coated with reflectorized material on the surface.

4. LED shot-light according to claim 1 is characterized in that: the glue film that shields is arranged on the surface of led chip.

5. LED shot-light according to claim 1 is characterized in that: housing is to be connected to form by reflector, shell, bonnet and face shield, and the LED luminous plaque is wired to the extraction electrode on the bonnet.

6. LED shot-light according to claim 1 is characterized in that: reflector separates with shell.

7. LED shot-light according to claim 1 is characterized in that: reflector and shell are one.