CN101666470A

CN101666470A - LED lamp and heat dissipating structure thereof

Info

Publication number: CN101666470A
Application number: CN200810214340A
Authority: CN
Inventors: 白豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-02
Filing date: 2008-09-02
Publication date: 2010-03-10

Abstract

The invention discloses an LED lamp and a heat dissipating structure thereof. The LED lamp comprises a lampshade, a heat pipe, an LED luminous unit and a transparent cover, wherein the lampshade comprises a shade body and a heat conducting column connected with the inner wall of the shade body; the heat pipe comprises a heat absorption section and a heat release section extended from the heat absorption section, the heat absorption section is jointed with the heat conducting column, and the heat release section is jointed with the inner wall of the shade body and distributed in a radial shapeby using the heat conducting column as a center; the LED luminous unit is connected to the heat conducting column; the transparent cover is in closing connection with the shade body; and the heat pipecan quickly conduct the heat generated by the LED luminous unit to every part of the shade body so as to improve the whole heat dissipating efficiency of the LED lamp to effectively reduce the heat resistance value, reduce temperature rise of an LED chip and increase the stability and service life of the lamp at the same time.

Description

The LED Lamp And Its Radiating Mechanism

Technical field

The present invention relates to a kind of LED light fixture, relate in particular to a kind of LED Lamp And Its Radiating Mechanism with the heat pipe that radially distributes.

Background technology

Because the fast development of science and technology, light emitting diode is extensively applied on the lighting field, but because High Power LED will produce a large amount of used heat, so the heat radiation of led lamp then becomes an important problem.

The structure of general led lamp comprises a cover body, a heat-conducting plate and a plurality of light emitting diode, and light emitting diode amplexiforms on heat-conducting plate, and heat-conducting plate amplexiforms the end face in cover body again; Cover body is that the thermal conductivity good metal is made, and the other end of cover body also elongation moulding a plurality of fin are arranged, to improve rate of heat dispation; When lamp lighting, a large amount of used heat that light emitting diode will send, used heat will be passed to cover body fast by heat-conducting plate, the action of dispelling the heat again by cover body, and fin can improve the rate of heat dispation of cover body; And diffusing to the cover body periphery gradually by any, this kind radiating mode dispels the heat.

Yet, the structure of this kind led lamp still has the following point point: because the restriction of radiator structure has also limited the moulding of light fixture simultaneously, the heat-transfer path because the radiating mode of this kind fitting structure can't effectively distribute, also make that the thermal resistance value of this radiator structure is bigger, the led chip temperature heats up also higher, also reduces light fixture stability and life-span simultaneously.

Therefore, how to overcome the shortcoming of aforementioned prior art, real is the present problem that needs to be resolved hurrily.

Summary of the invention

A purpose of the present invention is to provide a kind of LED Lamp And Its Radiating Mechanism, the heat that can apace the LED luminescence unit be produced by heat pipe conducts to cover body everywhere, can improve the heat dissipation of this LED light fixture integral body and effectively reduce thermal resistance value, it is also lower to make that the led chip temperature heats up, and also increases light fixture stability and life-span simultaneously.

To achieve the above object, the invention provides a kind of LED light fixture, comprise a lampshade, a plurality of heat pipe, a LED luminescence unit and a diffuser, wherein, the heating column that this lampshade comprises a cover body and is connected with this cover body inwall, the heat release section that these heat pipes comprise an endotherm section respectively and extend from this endotherm section, this endotherm section amplexiforms in this heating column, this heat release section is amplexiformed in this cover body inwall, and be that the center radially distributes with this heating column, this LED luminescence unit is connected in this heating column, and this diffuser involution is connected in this cover body.

To achieve the above object, the invention provides a kind of radiator structure of LED light fixture, be connected with a LED luminescence unit, this radiator structure comprises a lampshade and a plurality of heat pipe, wherein, the heating column that this lampshade comprises a cover body and is connected with this cover body inwall, this heating column and described LED luminescence unit amplexiform, the heat release section that these heat pipes comprise an endotherm section respectively and extend from this endotherm section, this endotherm section amplexiforms in this heating column, this heat release section is amplexiformed in this cover body inwall, and is that the center radially distributes with this heating column.

Another object of the present invention is to provide a kind of LED Lamp And Its Radiating Mechanism, by the groove that takes shape in the cover body inwall, and the storage tank that is opened in heating column, heat pipe can more firmly be connected with cover body, improve the heat conductive efficiency of LED light fixture.

Still a further object of the present invention is to provide a kind of LED Lamp And Its Radiating Mechanism, by the stator that heat pipe is pressed in groove, heat pipe is more closely contacted with cover body, improves the heat conductive efficiency of LED light fixture.

Still a further object of the present invention is to provide a kind of LED Lamp And Its Radiating Mechanism, by the fin that takes shape in cover body, improves the radiating efficiency of this LED light fixture.Beneficial functional of the present invention is, adopt LED Lamp And Its Radiating Mechanism provided by the invention, the heat that can apace the LED luminescence unit be produced by heat pipe conducts to cover body everywhere, can improve the heat dissipation of this LED light fixture integral body and effectively reduce thermal resistance value, it is also lower to make that the led chip temperature heats up, and also increases light fixture stability and life-span simultaneously.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the present invention's part assembly;

Fig. 2 is the stereo appearance figure of the present invention's part assembly;

Fig. 3 is the upward view of the present invention's part assembly;

Fig. 4 is a three-dimensional exploded view of the present invention;

Fig. 5 is a perspective view of the present invention;

Fig. 6 is the cutaway view of Fig. 5 along the 6-6 hatching;

Fig. 7 is the cutaway view of Fig. 6 along the 7-7 hatching;

Fig. 8 is a conductive structure start schematic section of the present invention.

Wherein, Reference numeral

10 lampshades

11 cover bodies

111 grooves

12 heating columns

121 storage tanks, 122 fixing holes

123 containing holes

13 fin, 14 stators

15 diffusers

151 transmission lens

20 heat-conducting plates

21 through holes

30 heat pipes, 301 straight shape heat pipes

31 endotherm sections, 32 heat release section

40 LED luminescence units

50 fixation kits

The b accommodation chamber

The specific embodiment

Relevant detailed description of the present invention and technology contents, conjunction with figs. is described as follows, however appended graphic reference and the explanation usefulness of only providing not is to be used for the present invention is limited.

See also Fig. 1 to Fig. 3, three-dimensional exploded view, stereo appearance figure and upward view for the present invention's part assembly, the invention provides a kind of LED Lamp And Its Radiating Mechanism, the LED light fixture comprises a lampshade 10, a heat-conducting plate 20, a plurality of heat pipe 30 and a LED luminescence unit 40, wherein:

The heating column 12 that lampshade 10 comprises a cover body 11 and extends from cover body 11 inwalls; Wherein heating column 12 can be arranged to separate independent structures with cover body 11, and separately independently heating column 12 can impose gummed, welding, screw or aforementioned hybrid the joint with cover body 11, make and the design flexibility application space to provide, and heating column 12 is arranged at the below of cover body 11, and points to transmission lens 151 (see figure 4)s of diffuser 15; Cover body 11 is nearly ellipse, and the one side of cover body 11 is formed with an accommodation chamber b, and heating column 12 is formed in the accommodation chamber b; The inner face of cover body 11 then forms a plurality of grooves 111, and these grooves 111 radially distribute; Heating column 12 then offers a plurality of storage tanks 121, a plurality of fixing hole 122 and a plurality of containing hole 123; And the outer surface of cover body 11 or inner surface also form a plurality of fin 13.

Heat-conducting plate 20 amplexiforms in heating column 12, and heat-conducting plate 20 offers a plurality of through holes 21, and through hole 21 wears and is locked in the fixing hole 122 for a plurality of fixation kits 50, and fixation kit 50 is a screw, can also glue together or welding manner is fixed or the combination of aforementioned manner, not exceed with this form.

Heat pipe 30 amplexiforms in heating column 12 and cover body 11 inwalls and is that the center distributes and is radial with heating column 12; Further specify, heat pipe 30 is bent and is nearly L type, the heat release section 32 that heat pipe 30 comprises an endotherm section 31 and extends from endotherm section 31, endotherm section 31 is placed in the storage tank 121 of heating column 12, and heat release section 32 is placed in the groove 111 and the sheet 14 that is fixed presses fixing; And the present invention also comprises a plurality of straight shape heat pipes 301, is arranged in the containing hole 123 of heating column 12, can also strengthen heat transfer efficiency; And these heat pipes 30 are that the center radially distributes with heating column 12, and its endotherm section 31 concentrates on heating column 12 places, and heat release section 32 is distributed in cover body 11 periphery of inner wall.The endotherm section 31 of heat pipe 30 and heat release section 32 are amplexiformed and are meant with heat biography glue, cream, the corresponding assembly combination with it of scolder.The central axis of the endotherm section 31 of the central axis of wherein aforementioned heating column 12 and a plurality of heat pipe 30 is parallel to each other

40 of LED luminescence units directly amplexiform the end in heating column 12, or an end of heating column 12 can be set up a heat-conducting plate 20, and heat-conducting plate 20 is pulled by folder and is amplexiformed between LED luminescence unit 40 and heating column 12, to enlarge contact area and planform to increase the flexible application that designs; LED luminescence unit 40 is a light emitting diode; When LED luminescence unit 40 is shinny, its back side will produce a large amount of used heat, used heat will conduct on the heating column 12 and the endotherm section 31 of heat pipe 30 by heat-conducting plate 20 fast, and heat pipe 30 heat conduction velocities are very fast and thermal resistance value is less, so used heat can by heat pipe 30 reach fast cover body 11 around, make LED luminescence unit 40 and cover body 11 keep less temperature difference, and then promote the heat dissipation of whole group light fixture.

See also Fig. 4 and Fig. 5, be respectively three-dimensional exploded view of the present invention and perspective view, lampshade 10 also comprises a diffuser 15, diffuser 15 connects involution in an end face of cover body 11, diffuser 15 also comprises a transmission lens 151, transmission lens 151 corresponding LED luminescence units 40, the light that LED luminescence unit 40 is sent can shine out by transmission lens 151.

See also Fig. 6 to Fig. 8, be respectively cutaway view and of the present invention conductive structure start schematic section of Fig. 5 along the cutaway view of 6-6 hatching, Fig. 6 along the 7-7 hatching, heat pipe 30 amplexiforms in the inner surface of heating column 12 and cover body 11, the characteristic of being conducted heat energy by heat pipe 30 fast can make the used heat of LED luminescence unit 40 be conducted to cover body 11 everywhere fast, heat pipe 30 directly is arranged in storage tank 121, or endotherm section 31 is arranged in storage tank 121 and heat release section 32 is placed in the groove 111.

From Fig. 6 and Fig. 7, can find out, heat pipe 30 moulding according to the cover body interior shape, and look the heat radiation specification and need be distributed in cover body 11 whole or local inner surfaces, so, can reach best heat transfer efficiency; When Fig. 8 then is heat pipe 30 runnings, the schematic diagram of used heat conduction.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims

1. a LED light fixture is characterized in that, comprising:

One lampshade, a heating column that comprises a cover body and be connected with this cover body inwall;

A plurality of heat pipes, a heat release section that comprises an endotherm section respectively and extend from this endotherm section, this endotherm section amplexiforms in this heating column, and this heat release section is amplexiformed in this cover body inwall, and is that the center radially distributes with this heating column;

One LED luminescence unit is connected in this heating column; And

One diffuser, involution are connected in this cover body.

2. LED light fixture according to claim 1 is characterized in that the inwall of this cover body forms a plurality of grooves, and this heat release section is placed in this groove.

3. LED light fixture according to claim 1 is characterized in that this heating column offers a plurality of storage tanks, and this endotherm section is arranged in this storage tank.

4. LED light fixture according to claim 3 is characterized in that, also comprises shape heat pipe always, and this heating column offers a containing hole, and this straight shape heat pipe is located in this containing hole.

5. LED light fixture according to claim 1 is characterized in that, also comprises a heat-conducting plate, and this heat-conducting plate is pulled by folder and is attached between this heating column and this LED luminescence unit.

6. LED light fixture according to claim 1 is characterized in that this heating column is arranged at the below of this cover body, and points to this diffuser.

7. LED light fixture according to claim 6 is characterized in that, this heating column and this cover body glue together mutually, weld, are spirally connected or this heating column directly extends from this cover body.

8. LED light fixture according to claim 1 is characterized in that, the central axis of this heating column and these heat pipe heat-absorbing section central axis are parallel to each other.

9. LED light fixture according to claim 1 is characterized in that, this endotherm section passes with glue, cream or scolder with heat and combines with this heating column, and this heat release section passes with glue, cream, scolder with heat and combines with this cover body inwall.

10. LED light fixture according to claim 1 is characterized in that, this lampshade comprises also this heat release section is pressed a stator in this cover body inwall that this stator is connected in this cover body.

11. LED light fixture according to claim 1 is characterized in that this cover body forms a plurality of fin.

12. LED light fixture according to claim 1 is characterized in that this heating column offers a plurality of fixing holes, this heat-conducting plate offers a plurality of through holes of corresponding these fixing holes, wears locking for a plurality of fixation kits.

13. LED light fixture according to claim 1 is characterized in that, this diffuser also comprises a transmission lens that should the LED luminescence unit.

14. the radiator structure of a LED light fixture is connected with a LED luminescence unit, it is characterized in that this radiator structure comprises:

One lampshade, a heating column that comprises a cover body and be connected with this cover body inwall, this heating column and described LED luminescence unit amplexiform; And

A plurality of heat pipes, a heat release section that comprises an endotherm section respectively and extend from this endotherm section, this endotherm section amplexiforms in this heating column, and this heat release section is amplexiformed in this cover body inwall, and is that the center radially distributes with this heating column.

15. the radiator structure of LED light fixture according to claim 14 is characterized in that, also comprises a heat-conducting plate, this heat-conducting plate is pulled by folder and is attached between this heating column and the described LED luminescence unit.

16. the radiator structure of LED light fixture according to claim 14 is characterized in that, this heating column is arranged at the below of this cover body.

17. the radiator structure of LED light fixture according to claim 16 is characterized in that, this heating column and this cover body glue together mutually, weld, are spirally connected or this heating column directly extends from this cover body.

18. the radiator structure of LED light fixture according to claim 14 is characterized in that, the central axis of this heating column and these heat pipe heat-absorbing section central axis are parallel to each other.

19. the radiator structure of LED light fixture according to claim 14 is characterized in that, this endotherm section passes with glue, cream or scolder with heat and combines with this heating column, and this heat release section passes with glue, cream, scolder with heat and combines with this cover body inwall.

20. the radiator structure of LED light fixture according to claim 14 is characterized in that, the inwall of this cover body forms a plurality of grooves, and this heat release section is placed in this groove.

21. the radiator structure of LED light fixture according to claim 14 is characterized in that, this heating column offers a plurality of storage tanks, and this endotherm section is arranged in this storage tank.

22. the radiator structure of LED light fixture according to claim 21 is characterized in that, also comprises shape heat pipe always, this heating column offers a containing hole, and this straight shape heat pipe is located in this containing hole.

23. the radiator structure of LED light fixture according to claim 14 is characterized in that, this lampshade comprises also this heat release section is pressed a stator in this cover body inwall that this stator is connected in this cover body.

24. the radiator structure of LED light fixture according to claim 14 is characterized in that, this cover body forms a plurality of fin.

25. the radiator structure of LED light fixture according to claim 14 is characterized in that, this heating column offers a plurality of fixing holes, and this heat-conducting plate offers a plurality of through holes of corresponding these fixing holes, wears locking for a plurality of fixation kits.