CN200940816Y

CN200940816Y - Heat radiator for lamp

Info

Publication number: CN200940816Y
Application number: CNU2006200183200U
Authority: CN
Inventors: 钟李杏枝
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-28
Filing date: 2006-03-28
Publication date: 2007-08-29
Anticipated expiration: 2016-03-28

Abstract

The utility model discloses a radiation device which is essentially characterized in that a cavity is equipped at a radiator with fins the front end of which is equipped with a combination of a reflector and a lampholder which connects two conductive terminals which passes through a passage located at the lateral wall of cavity and protrude the cavity to connect electrically electronic components in a base located behind the radiator. After filled with material to conduct the heat, the cavity is closed with a cover after filled with material to conduct the heat which can transmit the heat generated by luminous components to the fins wherein the air convection can emit the heat so as to improve the radiation efficiency.

Description

The heat abstractor of light fixture

Technical field

The utility model relates to a kind of quick heat radiating structure of light fixture.

Background technology

The projecting lamp of existing high power consumption is accompanied by golf calorific value usually, therefore also must pay attention to the ventilation effect of field of employment especially, enables the heat that light fixture produces is got rid of fast, avoids light fixture to burn; The PAR lamp that for example is widely used in the illumination on ground such as stage, family, shop, hotel mainly as decorative use is wherein a kind of.Particularly the led chip temperature in LED (Light-Emitting Diode) lighting must be controlled at below 80 ℃, just can convert electrical energy into luminous energy rather than heat energy, thus the low power consuming of performance LED light fixture and characteristics low in calories.

The radiator structure of the LED projecting lamp that the TaiWan, China bulletin is disclosed for M278217 number discloses that promptly the radiator with plural fin being set in light fixture, enlarge heat absorption and area of dissipation by those fins, to promote the cooling effectiveness of LED luminescence component; In addition, general light fixture also utilizes the metal of excellent in heat dissipation effect to make lamp housing as far as possible, and at lamp housing plural louvre is set, and the part heat that luminescence component produced is distributed by louvre, and the part heat is directly absorbed by the metal lamp housing, by air this heat is got rid of again.

The utility model content

The purpose of this utility model provides a kind of quick heat radiating structure of light fixture, radiator structure with golf calorific value light fixture or LED projecting lamp in the solution prior art, the porous heat radiation has reduced the area that absorbs heat, radiating efficiency can't further be provided, get rid of the relatively poor shortcoming of heat cooling effectiveness with air.

For achieving the above object, embodiment of the present utility model on the one hand, be except having in the light fixture setting the radiator of fin, further one chamber is set at this radiator, the conduction material of filling then in this chamber with good heat conductive efficient, for example cooling fluid, heat-conducting glue ... Deng, conduct heat to those fins more quickly by this conduction material, cooperate cross-ventilation that the heat on the fin is got rid of again, thereby make the integral heat sink effect obtain to promote better.

Embodiment of the present utility model on the other hand, be to utilize the opening sealing of the made capping of the material possess good heat conductive character with described chamber, this capping then is provided with the bullet of a hollow, and this bullet is contained in the chamber, enlarge the contact area of the conduction material in capping and the chamber by this bullet, thereby further promote its radiating efficiency.

In addition, the utility model also further with the metal material that possesses good heat-conductivity with those fins and chamber is one-body molded makes, enable further to enlarge the area of dissipation of entire heat dissipation body.

Based on this, the heat abstractor of light fixture provided by the utility model, be one chamber to be set at radiator with plural fin, this radiator front end combination has speculum and lamp socket, two conducting terminals that are connected in lamp socket then pass the passage of being located at this chamber sidewall and extend chamber, with the base that is located at the radiator rear in electronic building brick electrically connect; Behind the filling conduction material, seal in the described chamber with the opening of a capping with chamber; The heat that luminescence component produced is able to be transmitted to this sheet via this conduction material, cooperates cross-ventilation that heat is got rid of.

Compared with prior art, the utlity model has following advantage:

Light fixture cooling mechanism of the present utility model has better radiating effect than radiator structure of the prior art.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is for showing the embodiment stereo appearance figure of light fixture of the present utility model;

Fig. 2 is for showing the embodiment three-dimensional exploded view of the utility model primary clustering syntagmatic;

Fig. 3 is the section plan of the A-A direction of demonstration Fig. 1;

Fig. 4 is the section plan of the B-B direction of demonstration Fig. 1.

[primary clustering symbol description]

1 ... radiator

10 ... dented space

11 ... fin

11A ... the front end fin

12 ... clasp

13 ... the side space

14 ... lampshade

15 ... chamber

16 ... inner tube wall

17 ... passage

2 ... capping

20 ... bullet

21 ... dull and stereotyped

211 ... hole

22 ... drop-stopping ring

23 ... screw

3 ... base

31 ... button hole

32 ... plug

4 ... lamp socket

41 ... conducting terminal

42 ... screw

5 ... speculum

6 ... lampshade

61 ... groove

7 ... conduction material

The specific embodiment

Following conjunction with figs. and element numbers are done more detailed description to embodiment of the present utility model, can implement according to this after studying this specification carefully so that have the knack of this technical field person.

Fig. 1 is for showing the embodiment stereo appearance figure of light fixture of the present utility model, the figure illustrates light fixture of the present utility model and include a radiator 1 with plural fin 11, and the light-permeable lampshade 6 of being located at radiator 1 front end, radiator 1 rear end then is provided with a base 3 with plug 32, this plug 32 is used for being connected to power supply, so that the usefulness of lamp luminescence to be provided.

Fig. 2 to Fig. 4 shows the structure chart after the combination of components of the preferred embodiment of the utility model light fixture concerns exploded view and makes up respectively; Those figure have disclosed the utility model and have comprised the radiator 1 that a front end possesses dented space 10, this radiator 1 has plural number simultaneously and is surrounded on its peripheral fin 11, the central authorities that those fins 11 are surrounded then form a chamber 15, and two passages 17 are set between the internal chamber wall 16 of chamber 15 and the fin 11 at least; Fin 11 preferably adopts one-body molded making with chamber 15, can have best heat-conducting effect.

The front end of chamber 15 is installed a

LED lamp socket

4, and 41 of two conducting terminals that are connected in lamp socket 4 pass this passage 17 respectively and extend outside the rear end of chamber 15; The rear end of radiator 1 is provided with clasp 12, is mainly used to be fastened on the usefulness of the button hole 31 that is located at base 3 internal diameter walls, radiator 1 and base 3 combinations can be fixed; The inside of described base 3 is provided with electronic building brick, and this electronic building brick can utilize lead and this two conducting terminal to electrically connect; This electronic building brick also is provided with a plug 32, and this plug 32 is extended to outside the base 3, and utilizes plug 32 to be connected to power supply so that the LED on the lamp socket 4 to be provided luminous required electric power.

In order to provide radiator 1 better radiating effect, the utility model is filling conduction material 7 in chamber 15 further, and this conduction material 7 can be a cooling fluid, also can be heat-conducting glue, or even other any material that possesses good heat conductive character.This conduction material 7 is to be filled in the chamber from the set opening in chamber 15 rear ends, then with the opening sealing of a capping 2 with chamber 15.The preferred embodiment of this capping 2 is one-body molded for having bullet 20, and the flat board 21 that is incorporated into these bullet 20 1 ends, and this bullet 20 is a ducted body; Then be provided with a plurality of holes 211 on dull and stereotyped 21; After being filled into conduction material in the chamber 15, root in bullet 20 is nested with drop-stopping ring 22, again this bullet 20 is inserted in the chamber 15, and utilize screw 23 to pass hole 211 on dull and stereotyped 21, make screw 23 lock the set screw (not shown) in radiator 1 rear end again, suppress drop-stopping ring 22 jointly with chamber 15 opening ora terminalis and with chamber 15 sealings by dull and stereotyped 21, enlarge contact area with conduction material by inserting bullets 20 in the chamber 15 simultaneously.

The speculum 5 of one bowl-type then is installed in the dented space 10 of radiator 1 front end, and make described lamp socket 4 be positioned at the central authorities of this speculum 5, last again the lampshade 6 of light-permeable is covered in radiator 1 front end, utilizes the groove 61 of being located at lampshade 6 internal faces chimeric and fixing mutually with the fin 11A of radiator 1 front end.

The occupation mode of light fixture of the present utility model, be when the luminescence component on the lamp socket 4 because of energising when luminous, the heat that it produced is except a part of auto-radiating, another part is reflected outside mirror 5 absorptions and the heat radiation, most heat is transmitted to fin 11 and conduction material 7, by conduction material 7 heat is conducted to each fin 11 and capping 2 again, uses the expansion endotherm area, cooperate cross-ventilation that the heat on the fin is got rid of again, reach preferable radiating efficiency.

The above only is in order to explain preferred embodiment of the present utility model; be not that the attempt tool is to do any pro forma restriction to the utility model; all have in that identical creation spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.

Claims

1. the heat abstractor of a light fixture includes a radiator that is provided with plural fin, and this radiator front end is provided with lamp socket and speculum, and this lamp socket is connected with two conducting terminals, and this radiator rear end is provided with base, it is characterized in that:

Described radiator is provided with chamber, and the sidewall of this chamber is provided with passage, and this conducting terminal passes this passage and extends chamber, in this chamber behind the filling conduction material with a capping with this cavity seal.

2. the heat abstractor of light fixture according to claim 1, it is characterized in that: the rear end of described chamber has opening, and this capping is to be combined in this opening, and is provided with drop-stopping ring between this capping and the opening periphery.

3. the heat abstractor of light fixture according to claim 1 and 2, it is characterized in that: described capping includes a bullet and the flat board that is connected in this bullet one end, this bullet is to be contained in this chamber, and is contacted with the opening periphery of this chamber by this flat board.

4. the heat abstractor of light fixture according to claim 3, it is characterized in that: described bullet is a hollow.

5. the heat abstractor of light fixture according to claim 1, it is characterized in that: the sidewall of described chamber is one-body molded with those fins.

6. the heat abstractor of light fixture according to claim 1, it is characterized in that: described conduction material is a kind of cooling fluid.

7. the heat abstractor of light fixture according to claim 1, it is characterized in that: described conduction material is a kind of heat-conducting glue.