CN2913848Y

CN2913848Y - Cooling system of lamp

Info

Publication number: CN2913848Y
Application number: CNU2006200183183U
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: 2007-06-20
Anticipated expiration: 2016-03-28

Abstract

The utility model discloses a cooling system of lamp, which comprises a hollow cylindrical base provided with a lamp seat for installing a light-emitting assembly; a heat-conductive reflecting mirror combined with a first end of the base; multiple fins arranged on the outer surface of the base; a (hollow) conductive terminal arranged in inner space of the base, connected with the lamp seat, and having rough surface; and a cooling liquid filled in the conductive terminal and the inner space of the base. The inner space of the base is sealed to only expose the conductive terminal. Heat generated from the light-emitting assembly is conducted to the fins and reflecting mirror via the cooling liquid, so as to improve heat dissipating efficiency of the lamp.

Description

The cooling system 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 high power consumption is accompanied by golf calorific value usually, therefore also must pay attention to the ventilation effect of field of employment especially, so that the heat that light fixture produces can be 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 patent announcement is set forth for M278217 number has promptly been set forth the radiator with a plurality of fins has been set in light fixture, enlarges 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 a plurality of louvres 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

Technical problem to be solved

The radiator structure of existing golf calorific value light fixture or LED projecting lamp, its existing problem comprises:

The metal lamp housing is provided with a plurality of louvres, has directly reduced to absorb the area of heat, thereby radiating efficiency can't further be provided;

Get rid of heat (promptly so-called " ventilation type ") with air, its cooling effectiveness is also relatively poor.

The technological means of dealing with problems

One of them technological means of the present utility model, the louvre of right quantity is set except the lamp housing at light fixture, and setting has outside the radiator of fin, further those fins are incorporated into a cylindrical body, in this cylindrical body then filling have the cooling fluid of good heat conductive efficient, conduct heat to those fins more quickly by this cooling fluid, cooperate air that the heat on the fin is got rid of again, thereby make the integral heat sink effect obtain to promote better.

Another technological means of the present utility model, can form hollow with being used for the conducting terminal of conducting electric current, and conduction materials such as empty therein endoporus filling cooling fluid or heat-conducting glue, even can make the outer surface of this conducting terminal and/or inner surface form matsurface, thereby can enlarge the surface area of conducting terminal and heat can be transmitted to described fin apace.

In addition, the utility model is also further made a speculum with the metal material that possesses good heat-conductivity, and this speculum and described pedestal and fin are combined as a whole, thereby further enlarges the area of dissipation of whole light fixture.

For filling cooling fluid easily, the utility model is formed with opening at an end of pedestal, and this opening is then installed a cover plate with through hole and screw; After described conducting terminal passes the through hole of this cover plate, make the periphery sealing of cover plate and pedestal again, and after also being sealed between conducting terminal and this through hole, make the free end of conducting terminal expose this cover plate, establish lead so that connect; Described screw then can enter the interior space of pedestal for the filling cooling fluid, locks this screw so that screw is sealed with the antiseepage screw again.

Based on foregoing, light fixture cooling system provided by the utility model comprises one and is provided with lamp socket for the pedestal that luminescence component is installed, and first end of this pedestal is in conjunction with the speculum with thermal conductivity; The outer surface of described pedestal is provided with a plurality of fins; This pedestal is the hollow cylinder with interior space, should be provided with the hollow conducting terminal that is connected in this lamp socket in interior space, the outer surface of this conducting terminal forms matsurface, all be filled with cooling fluid in the inside of conducting terminal and the interior space of pedestal, make the interior space sealing of this pedestal again, only make conducting terminal expose space in this; The heat that luminescence component produced is passed through this cooling fluid and is transmitted to this fin and speculum, thereby promotes the radiating efficiency of light fixture.

The beneficial effect of utility model

The better heat-radiation effect of the golf calorific value light fixture that the radiating effect of light fixture of the present utility model is more traditional.

Description of drawings

Fig. 1 is the section plan of the utility model preferred embodiment.

Fig. 2 is the plan cross-section exploded view of Fig. 1.

Fig. 3 is the cutaway view of Figure 1A-A secant.

Fig. 4 is the part plan cutaway view of terminal structure of the present utility model.

The primary clustering symbol description

1...... pedestal

11...... cylindrical body

110...... interior space

12...... fin

13...... speculum

14...... cover plate

141...... through hole

142...... screw

15...... antiseepage screw

16...... lamp socket

17...... clasp

2...... conducting terminal

21...... endoporus

3....... loam cake

31...... hook portion

4...... lower cover

41...... recessed edge

The specific embodiment

Those skilled in the art below in conjunction with accompanying drawing and element numbers embodiment of the present utility model done more detailed description, so that can be implemented according to this after studying this specification carefully.

Please refer to Fig. 1 to 3, preferred embodiment of the present utility model, being to include provides pedestal 1, speculum 13 that is used for sky light that LED luminescence component (not shown) is installed and the conducting terminal 2 that is used for conductive electric current.Wherein, pedestal 1 is for having the hollow body 11 in interior space 110, and the outer surface of this cylindrical body 11 is provided with a plurality of fins 12; First end of cylindrical body 11 is provided with the described speculum 13 of bowl-type, the bottom surface of speculum 13 then is provided with the lamp socket 16 that is used for installing LED luminescence component (not shown), this lamp socket 16 is connected with described conducting terminal 2, and conducting terminal 2 is extended toward second end (i.e. the rightabout of first end) of pedestal 1, make this conducting terminal 2 pass the interior space 110 of pedestal 1.

Described speculum 13 can be independently individual, with fixation kits such as screws it is locked in first end of pedestal 1; Also can adopt thermal conductivity good metal material and pedestal 1 and fin 12 one-body molded making as shown in Figures 1 to 3; Or it is not speculum 13 is only one-body molded with pedestal 1, but one-body molded with fin 13.

Again as shown in Figure 4, based on the consideration of quick conductive, the preferred embodiment of described conducting terminal 2 can be made as the hollow tube with endoporus 21, and forms the irregular matsurface with a plurality of outstanding particles or concave point at the outer surface and/or the inner surface of conducting terminal 2; For example, can or be bonded in the outer surface and/or the inner surface of conducting terminal 2 with a plurality of tiny metallic particles sintering; Or clash into to form a plurality of concave points with the outer surface and/or the inner surface of sandblast technology to conducting terminal 2.21 of the endoporus of conducting terminal 2 are installed on conducting terminal 2 back side of lamp socket 16 again after being filled into cooling fluid.

Combination is referring to figs. 1 through 3 simultaneously again, and based on the consideration of quick conduction heat, the utility model is filled with cooling fluid in the interior space 110 of pedestal 1, should seal in interior space 110 with a cover plate 14 again, only makes the free end of conducting terminal 2 expose this cover plate 14.Its embodiment, provide a cover plate 4 with through hole 41 and screw 42, after this described conducting terminal 2 passes this through hole 41, to be sealed between welding or the periphery of marine glue with cover plate 4 and pedestal 1 second end, and also sealed between conducting terminal 2 and the through hole 41 with marine glue, with the interior space 110 of cooling fluid, lock this screw 42 with antiseepage screw 15 again, then so that interior space 110 is sealed fully with leak preventing effect from screw 42 injection pedestals 1.Described cooling fluid can be that water or other possess the liquid of good heat conductive efficient.

A loam cake 3 that is used for protecting luminescence component then is equipped with in the upper end of described speculum 13, and its combining structure is that the side at loam cake 3 is provided with hook portion 31, and utilizes this hook portion 31 to be fastened on the edge of one of them fin 12.

A lower cover 4 then is equipped with in pedestal 1 rear end, its combining structure can be extended clasp 17 at a fin 12 of pedestal rear end, and the internal diameter of lower cover 4 form can with these clasp 17 mutual chimeric recessed edge 41, and utilize the chimeric that lower cover 4 is fixing with pedestal 1 of this clasp 17 and recessed edge 41.

By aforesaid structure, when conducting terminal 2 produced heat because of the conducting electric current, this heat can conduct to the cooling fluid of pedestal 1 inside through the cooling fluid of conducting terminal 2 inside, conducts to fin 12 again; And luminescence component is because of luminous when producing heat, the one part heat mirror 13 that can be reflected reflects away, part heat is then absorbed by speculum 13 and conducts to fin 12, part heat can conduct to the cooling fluid of pedestal 1 inside, conduct to each fin 12 by cooling fluid again, thereby the expansion area of dissipation, cooperate air convection current and with on the fin and the heat that distributes of other part got rid of.

The above is to be used for explaining preferred embodiment of the present utility model; be not to be used for the utility model is done any pro forma restriction; therefore; all have in that identical utility model spirit is following do relevant any modification of the present utility model or change, all should be included in the protection domain of the utility model claim.

Claims

1, a kind of cooling system of light fixture is characterized in that, includes:

A pedestal, for having the hollow body in interior space, the outer surface of this cylindrical body is provided with a plurality of fins;

A speculum has thermal conductive property, and is combined in first end of this pedestal, and the bottom surface of this speculum is provided with lamp socket;

Cooling fluid, filling are in the interior space of this pedestal, and the space is sealed in being somebody's turn to do, and make the free end of this conducting terminal expose space in this.

2, the cooling system of light fixture according to claim 1 is characterized in that wherein, described speculum and this pedestal are one-body molded.

3, the cooling system of light fixture according to claim 1 is characterized in that wherein, described speculum, pedestal and fin are one-body molded.

4, as the cooling system of claim 1 to 3 light fixture as described in each, it is characterized in that, wherein, this lamp socket is connected with toward the second direction of this pedestal and extends conducting terminal, make this conducting terminal pass the interior space of described pedestal, this conducting terminal is the hollow tube with endoporus, and this endoporus is filled with conduction material.

5, as the cooling system of light fixture as described in the claim 4, it is characterized in that wherein, the outer surface of described conducting terminal is a matsurface.

6, as the cooling system of light fixture as described in the claim 4, it is characterized in that wherein, the outer surface and the bore area of described conducting terminal are matsurface.

7, as the cooling system of claim 1 to 3 light fixture as described in each, it is characterized in that, wherein, second end of described pedestal is provided with a cover plate, and second end of the periphery of this cover plate and this pedestal sealing, this cover plate is provided with through hole and screw, and described conducting terminal passes this through hole, and this screw cooperates the antiseepage screw to give driving fit.

8, as the cooling system of light fixture as described in the claim 7, it is characterized in that, wherein, second end of described pedestal is provided with a cover plate, and second end of the periphery of this cover plate and this pedestal sealing, this cover plate is provided with through hole and screw, and described conducting terminal passes this through hole, and this screw cooperates the antiseepage screw to give driving fit.