CN201954506U

CN201954506U - Light-emitting diode lamps and heat sinks

Info

Publication number: CN201954506U
Application number: CN2010206107086U
Authority: CN
Inventors: 黄教强; 谢志晖; 魏协利
Original assignee: SANDE ELECTRONIC CO Ltd
Current assignee: SANDE ELECTRONIC CO Ltd
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2011-08-31
Anticipated expiration: 2020-11-17

Abstract

The utility model relates to a light emitting diode lamp and a radiator thereof, which is mainly characterized in that the top surface of more than one lamp panel is provided with a radiator, and the radiator is mainly provided with a plurality of grooves formed on a substrate for respectively inserting a radiating fin; each radiating fin is provided with a rectangular contact part, at least one long edge of the contact part extends upwards to form a fin, and the fin of each radiating fin is respectively arranged in the groove of the substrate in a penetrating way, so that the top surface of the contact part is contacted with the bottom surface of the substrate; the lamp panel is fixed on the bottom of the base plate and forms thermal contact with the contact part of each heat sink, so that the heat energy is directly conducted to the heat sink for heat radiation, and the heat energy generated by the LED lamp during operation can be rapidly dissipated; and the radiating fin only needs to penetrate through the groove of the substrate to complete the radiating structure, so that the radiating structure has the advantage of convenience in assembly.

Description

Light-emitting diode lamp and radiator thereof

Technical field

The utility model is about a kind of light-emitting diode lamp and radiator thereof, refers to especially a kind ofly can arrange heat radiation energy and light-emitting diode lamp and radiator thereof easy to assembly rapidly.

Background technology

Technology because of the light-emittingdiode lighting is ripe gradually in recent years, so light-emitting diode lamp replaces traditional bulb and fluorescent lamp gradually, but can produce heat energy during the running of the light-emittingdiode on the lamp plate, because of the operating temperature of light-emittingdiode directly determines its service life and stability, when the light-emittingdiode temperature raises, its brightness meeting decay, so standing radiator that is equipped with on the light-emitting diode lamp on the market, to promote and the heat exchange of environment, reach row and distribute the purpose that near-infrafed photodiodes heat energy makes its energy normal operation.Radiator on the existing light-emitting diode lamp as shown in Figure 6, it is that end face at this light-emittingdiode lamp plate 92 is provided with a traditional heat-dissipating device 91, it mainly is to be formed with plural fin 912 on a pedestal 911, and the bottom surface 913 of this pedestal 911 is to contact with the end face of this lamp plate 92, when light-emitting diode lamp starts, each light-emittingdiode 921 of being located at lamp plate 92 bottom surfaces is because of the luminous heat energy that produces, be delivered to fin 912 by substrate contacted tight 911 bottom surfaces 913 in heat conducting mode via lamp plate 92 with it, the heat energy that accumulates in fin 912 passes in the outside air by thermal-radiating mode and dispels the heat, heat conduction and heat radiation, the i.e. heat that removable light-emitting diode lamp produced by aforementioned radiator 91.

Only, the speed of heat conduction transferring heat energy is slow than heat radiation, but when using 91 heat radiations of traditional radiator, because of traditional heat-dissipating device 91 is to be made of aluminium extruded type, so its pedestal 911 limits to some extent with the ratio of fin 912, therefore the minimum thickness of pedestal 911 also can limit to some extent, after the heat energy that event produces from light-emittingdiode 921 gets and from radiator 91 bottom surfaces 913 processes certain thickness pedestal 911 is arranged by heat conducting mode earlier, just thermal energy transfer can be dispelled the heat with thermal-radiating mode to plural fin 912, make integral heat sink speed slack-off; So another kind of existing radiator occurred, see also shown in Figure 7, this existing radiator is fastened by complex cooling fin 81 to form, each fin 81 end face is formed with four clamping holes 83 corresponding to the position of fin 81 two sides 811, each clamping hole 83 is gradually narrow from root edge to apical margin, the bottom of these fin 81 two sides 811 has extended to form four fasteners 82 corresponding to clamping hole 83 places, and each fastener 82 shape is corresponding to each clamping hole 83; Though need not seeing through pedestal 911 (as shown in Figure 6), heat energy can not be passed to fin 81 heat radiations, but two fin 81 are interconnected as desire, need earlier the bottom of first fin 81 to be pushed towards second fin 81, to strut each clamping part 82 on first fin 81, allow each clamping part 82 towards moving again corresponding to the position of second fin, 81 clamping holes 83, each clamping part 82 that is strutted is inwardly reduced and be contained in each clamping hole 83, could allow complex cooling fin 81 be fastened togather mutually in regular turn, so the complicated trouble of the assembling of this existing fin 81.The above person is all existing technology and does not attain desirable part, this shows, existing technology is real to be needed to be further reviewed, and seeks feasible solution.

The utility model content

Because the shortcoming of aforementioned prior art, the purpose of the utility model is to provide a kind of light-emittingdiode and radiator thereof, and it can be passed to heat on the fin rapidly and dispel the heat, and has advantage easy to assembly.

For reaching the major technique means that aforementioned purpose takes is to make aforementioned light-emitting diode lamp include a more than one lamp plate and a radiator, wherein, this lamp plate has a bottom surface and an end face, and its bottom surface is provided with plural light-emittingdiode, and its end face is to be connected with a radiator; This radiator includes:

One substrate is formed with plural groove on it;

Complex cooling fin, each fin is to include a contact site and more than one fin respectively, this contact site has relative both sides, and extend upward at least on one side and be formed with a fin, the fin of each fin is to be located in respectively in the groove of substrate, and the end face of this contact site is contacted with the bottom surface of this substrate; Wherein:

This lamp plate is the below that is installed in this substrate, and with this radiator on the contact site bottom surface thermo-contact of each fin.

Because but radiator of the present utility model is the contact site that the fin of thin thickness directly is bent to form formation fin and direct heat contact, so the heat energy that light-emittingdiode produces can conduct to fin from the lamp plate direct heat and carry out heat radiation, so that being passed in the outside air fast, heat energy dispels the heat, not needing needs thermal energy conduction to fin to be carried out heat radiation through after certain thickness pedestal is arranged earlier as existing technology heat energy, so the more existing technology of radiator heat-dissipation speed of the present utility model is fast.

And radiator of the present utility model only needs the fin with fin be arranged in the radiator structure of promptly having finished this radiator in the groove of this substrate, must each clamping part on one fin be strutted as existing radiator, after aliging again and being placed in clamping hole on another fin, could allow plural existing fin be fastened togather mutually in regular turn and form existing heat spreader structures, so radiator of the present utility model also has advantage easy to assembly.

Description of drawings

Fig. 1 is the outside drawing for the utility model first preferred embodiment.

Fig. 2 is the exploded view for the utility model first preferred embodiment.

Fig. 3 is the profile for the utility model first preferred embodiment.

Fig. 4 is the profile for the utility model second preferred embodiment.

Fig. 5 is the fin outside drawing for the utility model second preferred embodiment.

Fig. 6 is the profile for existing radiator.

Fig. 7 is the profile for another existing radiator.

[main element symbol description]

10 lamp plates, 11 light-emittingdiodes

12 screws, 13 electronic components

14 screws

20 radiators

21 substrates, 211 grooves

212 screws

22,22A fin 221,221A contact site

222,222A fin

81 fin, 811 sides

82 fasteners, 83 clamping holes

91 radiators, 911 pedestals

912 fins, 913 bottom surfaces

92 lamp plates, 921 light-emittingdiodes

The specific embodiment

The embodiment that below cooperates diagram illustration the utility model is to specify the technology contents of the utility model.

See also Fig. 1 to shown in Figure 3, the utility model is a kind of light-emitting diode lamp, mainly is to be provided with a radiator 20 in above lamp plate 10 end faces, and this radiator 20 mainly is to be formed with plural groove 211 on a substrate 21, for plugging a fin 22 respectively; Each fin 22 has a rectangle contact site 221 respectively, extend upward at least one long limit of this contact site 221 and be formed with a fin 222, each fin 22 is to be located in respectively in the groove 211 of substrate 21 with its fin 222, makes the end face of this contact site 221 contact the bottom surface of this substrate 21; These lamp plate 10 bottom surfaces are provided with plural light-emittingdiode 11, and this lamp plate 10 is substrate 21 bottom surfaces that are installed in aforementioned radiator 20, and constitute thermo-contacts with the contact site 221 of each fin 22; Wherein:

As shown in Figure 2, the substrate 21 of this radiator 20 can be rectangle plates, and it has a major axis and a minor axis, is formed with the groove 211 that plural number is parallel to each other again on the substrate 21; And on substrate 21, be equipped with plural screw 212.

In this first preferred embodiment, each fin 22 is to include a contact site 221 and a fin 222 respectively, and this contact site 221 has relative both sides, is formed with a fin 222 Yi Bian wherein extend upward, make each fin 22 be the L type, and the shape of each fin 222 can be rectangle; And each fin 22 is to wear from lower to upper in the groove 211 of this substrate 21 with its fin 222 respectively, and contact site 221 end faces of fin 22 will constitute thermo-contact with substrate 21 bottom surfaces.

See also Fig. 1 to shown in Figure 3, this lamp plate 10 can be rectangle, its bottom surface can be provided with more than one electronic component 13, and this lamp plate 10 locates to be formed with respectively screw 14 corresponding to the screw on the substrate 21 212 (as shown in Figure 3), so that use screw 12 that lamp plate 10 is locked in the bottom surface of substrate 21, and make contact site 221 bottom surfaces of lamp plate 10 end faces and each fin 22 constitute thermo-contact; In other embodiments, can be provided with one deck radiating gasket (not shown) and/or thermal grease (not shown) from top to bottom between this lamp plate 10 and the contact site 221.

See also Fig. 4 and shown in Figure 5, in this second preferred embodiment, each fin 22A includes a contact site 221A and two fins 222 respectively, this contact site 221A has relative both sides, and its both sides extend upward respectively and are formed with a fin 222A, make each fin 22A be the ㄩ type, and the shape of each fin 222A can be rectangle; And the two fin 222A of each fin 22A wear respectively and are fixed in the groove 211 of this substrate 21.

Because radiator 20 of the present utility model, 20A is that the fin with thin thickness directly is bent to form fin 222, but the contact site 221 of 222A and direct heat contact, 221A, so the heat energy that light-emittingdiode 11 produces can conduct to fin 22 from lamp plate 10 direct heat, the fin 222 of 22A, 222A carries out heat radiation, so that being passed in the outside air fast, heat energy dispels the heat, need earlier as existing technology heat energy not needing could be with thermal energy conduction to fin 22 behind the certain thickness pedestal through having, 22A carries out thermal convection current, make radiator 20 of the present utility model, 20A can arrange the heat radiation energy rapidly, so this light-emitting diode lamp can be arranged the heat radiation energy rapidly.

And radiator 20 of the present utility model, 20A have only needed fin 222, the 222A with

fin

22,22A be arranged in promptly to finish in the groove 211 of this substrate 21 radiator structure of this radiator 20,20A, must not need earlier each clamping part on the fin to be strutted as existing radiator, after aliging again and being placed in clamping hole on another fin, could allow plural existing fin be fastened togather mutually in regular turn and form existing heat spreader structures, so radiator of the present utility model also has advantage easy to assembly.

The above only is the preferred embodiment of the utility model, be not that the utility model is done any formal restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. radiator is characterized in that it includes:

One substrate is formed with plural groove on it;

Complex cooling fin, each fin is to include a contact site and more than one fin respectively, this contact site has relative both sides, and extend upward at least on one side and be formed with a fin, the fin of each fin is to be located in respectively in the groove of substrate, and the end face of this contact site is contacted with the bottom surface of this substrate.

2. radiator according to claim 1, each fin are to include a contact site and two fins respectively, and this contact site has relative both sides, and its both sides extend upward respectively and are formed with a fin respectively.

3. radiator according to claim 2, each fin is to be

Type, and the shape of each fin is to be rectangle.

4. radiator according to claim 3, each fin are to be the ㄩ type, and the shape of each fin is to be rectangle.

5. light-emitting diode lamp, it includes a more than one lamp plate and a radiator, it is characterized in that, and wherein, this lamp plate has a bottom surface and an end face, and its bottom surface is provided with plural light-emittingdiode, and its end face is to be connected with a radiator; This radiator includes:

One substrate is formed with plural groove on it;

6. light-emitting diode lamp according to claim 5, each fin are to include a contact site and two fins respectively, and this contact site has relative both sides, and its both sides upwards have been bent respectively to form a fin respectively.

7. light-emitting diode lamp according to claim 5, each fin is to be

Type, and the shape of each fin is to be rectangle.

8. light-emitting diode lamp according to claim 6, each fin are to be the ㄩ type, and the shape of each fin is to be rectangle.

9. according to each described light-emitting diode lamp in the claim 5 to 8, this lamp plate is with the bottom surface of plural screw locking at this substrate.

10. light-emitting diode lamp according to claim 9 is provided with a radiating gasket between the contact site of this lamp plate and this fin.

11. light-emitting diode lamp according to claim 9 is provided with one deck thermal grease between this lamp plate and this radiating gasket.

12. light-emitting diode lamp according to claim 10 is provided with one deck thermal grease between the contact site of this lamp plate and this fin.