CN201508851U

CN201508851U - LED bracket structure

Info

Publication number: CN201508851U
Application number: CN2009201756097U
Authority: CN
Inventors: 朱振丰; 陈原富
Original assignee: Fusheng Co Ltd
Current assignee: FUSHENG PRECISION INDUSTRY CO., LTD.
Priority date: 2009-09-04
Filing date: 2009-09-04
Publication date: 2010-06-16
Anticipated expiration: 2019-09-04

Abstract

An LED bracket structure comprises a rubber base with a hollow function area and a plurality of metal pins. The metal pins extend from the interior of the hollow function area to the exterior of the rubber base, each metal pin respectively comprises at least a first concave part and a corresponding first convex part, the first concave parts are positioned in the area where the metal pins are conjugated with the rubber base, and the top surfaces of the first convex parts are exposed at the bottom part of the rubber base.

Description

Light-emitting diode support structure

Technical field

The utility model relates to a kind of light-emitting diode packaging technology, particularly a kind of light-emitting diode support structure.

Background technology

(light-emitting diodes LED) has advantages such as life-span length, power saving, size is little, so can be widely used in the light source of various electronic installation to light-emitting diode.In addition, light-emitting diode is towards the development of full-color and high brightness in recent years, can be applied to large-sized display with on the traffic sign.In light-emitting diode packaging technology, the thermal diffusivity of luminous efficiency and LED encapsulation body is important problem.

Please refer to Fig. 1, light-emitting diode chip for backlight unit (not showing on the figure) is fixed in the LED support 100 usually.Rubber base 110 is formed on the metal pin 120 with the plastics injection molding method.Wherein, rubber base 110 has bowl-shape hollow functional areas 112.Metal pin 120 is arranged at the both sides of rubber base 110, extends in hollow functional areas 112 outside the rubber base 110.The structure of LED support 100 can be provided with chip bearing 130.In order to improve radiating effect and slimming demand, chip bearing 130, metal pin 120 are the isoplanar with 110 of rubber bases.Can make the interior cup degree of depth in the hollow functional areas 112 be equivalent to outer cup degree of depth functional areas outside, and chip bearing 130 is designed to expose the colloid bottom with metal pin 120 and dispel the heat.Yet aqueous vapor is infiltrated with rubber base 110 joints from chip bearing 130, metal pin 122 easily, and then influences the reliability and the life-span of light-emitting diode.

The utility model content

In order to address the above problem, one of the utility model purpose is for providing a kind of light-emitting diode support structure, by the joint of at least one recess in metal pin and rubber base is set, and the end face of the protuberance corresponding with recess can be exposed to the rubber base bottom, this structural design can increase the contact area of metal pin and rubber base, and then elongates aqueous vapor and infiltrate required path from the rubber base outside along the metal pin.

One of the utility model purpose provides a kind of light-emitting diode support structure, can take into account high-cooling property and keep its reliability.

One of the utility model purpose provides a kind of light-emitting diode support structure, comprising: rubber base has the hollow functional areas; And a plurality of metal pins, in the hollow functional areas, outside rubber base, extend.Wherein, the metal pin comprises at least one first recess position and corresponding first protuberance respectively; First recess is in metal pin and zone that rubber base engages; And the top surface of first protuberance is exposed to the bottom of rubber base.

Description of drawings

Figure 1 shows that the schematic diagram of existing LED support.

Fig. 2 A and Fig. 2 B are depicted as the schematic diagram according to the different embodiment of the utility model.

Fig. 3 A and Fig. 3 B are depicted as the schematic diagram according to the different embodiment of the utility model.

Fig. 4 A, Fig. 4 B and Fig. 4 C are depicted as the partial schematic diagram according to the different embodiment of the utility model.

Figure 5 shows that schematic diagram according to the utility model one embodiment.

The element numbers explanation

10	Rubber base
10	Rubber base	12	The hollow functional areas
20	The metal pin	12	The hollow functional areas
20	The metal pin	22	First recess
22’	First protuberance	22	First recess
22’	First protuberance	24	Second recess
24’	Second protuberance	24	Second recess
24’	Second protuberance	30	The chip bearing
34	Second recess	30	The chip bearing
34	Second recess	34’	Second protuberance
100	LED support	34’	Second protuberance
100	LED support	110	Rubber base
112	The hollow functional areas	110	Rubber base
112	The hollow functional areas	120	The metal pin
130	The chip bearing	120	The metal pin

Embodiment

Fig. 2 A is depicted as the generalized section according to the light-emitting diode support structure of the utility model one embodiment.In the present embodiment, light-emitting diode support structure comprises: rubber base 10; And a plurality of metal pins 20.Rubber base 10 has hollow functional areas 12.Metal pin 20 is 12 interior extensions outside rubber base 10 from the hollow functional areas.

The above-mentioned explanation that continues, wherein, metal pin 20 comprises at least one first recess 22 and corresponding first protuberance 22 ' respectively.First recess 22 is positioned at the zone that metal pin 20 engages with rubber base 10.The top surface of first protuberance 22 ' is exposed to the bottom of rubber base 10.In one embodiment, light-emitting diode chip for backlight unit (not showing on the figure) can be arranged on the metal pin 20 that is exposed to hollow functional areas 12.

Please refer to Fig. 2 B, in one embodiment, metal pin 20 is used to place light-emitting diode chip for backlight unit (not showing on the figure) and locates also can be provided with second recess 24 and corresponding second protuberance 24 '.Wherein, second recess 24 is towards hollow functional areas 12, and the top surface of second protuberance 24 ' is exposed to the bottom of rubber base 10.

Fig. 3 A and Fig. 3 B are depicted as the schematic diagram according to the different embodiment of the utility model.As shown in Figure 3A, in one embodiment, light-emitting diode support structure can comprise that chip bearing 30 is arranged in the hollow functional areas 12.Wherein, chip bearing 30 comprises at least one second recess 34 and corresponding second protuberance 34 '.The end face of second protuberance 34 ' is exposed to the bottom of rubber base 10, so chip great heat radiation effect on it can be provided.

Continue, please refer to Fig. 3 B, in one embodiment, the top of first protuberance 22 ' of metal pin 20 protrudes from the bottom of rubber base 10, in the time of can increasing tin sticky and the contact area of tin material.(do not show on the figure) that in one embodiment the metal bearing also can be rubber base and is coated in it.

Generally speaking, metal pin 20 is utilized technologies such as etching or punching press to be made by metal sheet.

Fig. 4 A, Fig. 4 B and Fig. 4 C are depicted as the partial schematic diagram according to different embodiment in the utility model.Please refer to Fig. 4 A, in one embodiment, the bottom thickness h of first recess 22 of metal pin 20 can be less than metal pin 20 other regional thickness H.

In one embodiment, metal pin 20 can be provided with a plurality of first recesses 22, shown in Fig. 4 B.So, when can increase by 20 tin sticky of metal pin and the contact area of tin material.In one embodiment, shown in Fig. 4 C, the bottom thickness of first recess 22 of metal pin 20 also can equal metal pin 20 other regional thickness H.Continuation is with reference to Fig. 4 C, the recess that first recess 22 of metal pin 20 can be designed to have stepped cross-section.

The above-mentioned explanation that continues, first recess 22 of the metal pin 20 in the utility model has various ways, also is not limited thereto, and will be understood that, and aforementioned

second recess

34 or 24 in metal bearing 30 or metal pin 20 also can have similar design.

Then, please refer to Fig. 5, in one embodiment, first recess 22 of metal pin 20 can be depression.

In the utility model, first recess 22 of metal pin 20 is arranged at the edge of hollow functional areas 12, shown in Fig. 2 B and Fig. 3 B.In different embodiment, first recess 22 of metal pin 20 can trim or protrude from the outer rim of rubber base 10, shown in Fig. 2 A and Fig. 3 A.Therefore, when aqueous vapor was infiltrated by the sidewall of rubber base 10, aqueous vapor could be infiltrated hollow functional areas 12 after can advancing to first recess, 22 surfaces along metal pin 20 surfaces.Therefore first recess 22 of metal pin 20 has elongated aqueous vapor infiltration path, has improved the reliability of assembly indirectly.In addition, first protuberance 22 ' of metal pin 20 also can be designed to help the structure of tin sticky according to need.When aqueous vapor when the tin sticky of metal pin 20 is infiltrated, also must advance with the surface of other regional metal pin 20 and could infiltrate the hollow functional areas along the sidewall of first protuberance 22 ', effectively overcome the problem of the easy infiltration of aqueous vapor in the past.

Comprehensively above-mentioned, the utility model is by being provided with the joint of at least one recess in metal pin and rubber base, and the end face of the protuberance corresponding with recess can be exposed to the rubber base bottom, and this structural design can increase the contact area of metal pin and rubber base and then elongate aqueous vapor and infiltrate required path from the rubber base outside along the metal pin.Light-emitting diode support structure of the present utility model also can be provided with the chip bearing with recessed cup structure, can take into account high-cooling property simultaneously and keep its reliability.

Above-described embodiment only is explanation technological thought of the present utility model and characteristics, its purpose makes those skilled in the art can understand content of the present utility model and is implementing according to this, when not limiting the utility model with this, be that every equivalence of doing according to spirit disclosed in the utility model changes or modification, must be encompassed in the claim of the present utility model.

Claims

1. a light-emitting diode support structure is characterized in that, comprises:

One rubber base has hollow functional areas; And

A plurality of metal pins extend outside described rubber base in described hollow functional areas, wherein

More described metal pin comprises at least one first recess and corresponding one first protuberance respectively;

More described first recess is in more described metal pin and described rubber base engaging zones; And

The top surface of more described first protuberance is exposed to the bottom of described rubber base.

2. light-emitting diode support structure as claimed in claim 1 is characterized in that, also comprises a chip bearing and is arranged at described hollow functional area.

3. light-emitting diode support structure as claimed in claim 2 is characterized in that, described chip bearing comprises at least one second recess and corresponding one second protuberance, and the end face of described second protuberance is exposed to the bottom of described rubber base.

4. light-emitting diode support structure as claimed in claim 1, it is characterized in that, one of more described metal pin has one second recess and corresponding one second protuberance in described hollow functional areas, and the end face of described second protuberance is exposed to the bottom of described rubber base.

5. light-emitting diode support structure as claimed in claim 1 is characterized in that, more described first recess can trim or protrude from the outer rim of described rubber base.

6. light-emitting diode support structure as claimed in claim 1 is characterized in that, the top of described first protuberance protrudes from the bottom of described rubber base.

7. light-emitting diode support structure as claimed in claim 1 is characterized in that, a cross section of described first recess is stepped.

8. light-emitting diode support structure as claimed in claim 1 is characterized in that, described first recess is a depression.