CN201539828U - Electric-shock resistant LED base structure - Google Patents
Electric-shock resistant LED base structure Download PDFInfo
- Publication number
- CN201539828U CN201539828U CN2009201789673U CN200920178967U CN201539828U CN 201539828 U CN201539828 U CN 201539828U CN 2009201789673 U CN2009201789673 U CN 2009201789673U CN 200920178967 U CN200920178967 U CN 200920178967U CN 201539828 U CN201539828 U CN 201539828U
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- insulation spacer
- emitting diode
- lead frame
- base structure
- protuberance
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Abstract
The utility model provides an electric-shock resistant LED base structure, which comprises a heat radiation base, an insulation spacer, a conducting wire rack and an insulated base body, wherein, the heat radiation base is provided with a convex part which is provided with a solid crystal area; the insulation spacer is arranged on the heat radiation base and is configured at the periphery of the convex part; the thickness of the insulation spacer is larger than or equal to 0.01 mm; the conducting wire rack is erected on the insulation spacer; a space is formed between the conducting wire rack and the convex part, so as to electrically isolate the heat radiation base and the conducting wire rack; and the insulated base body wraps the heat radiation base, the conducting wire rack and the insulation spacer, so as to form the electric shock resistant LED base structure provided by the utility model. The utility model utilizes the space and the design of the insulation spacer, so that the heat radiation base and the conducting wire rack can be effectively electrically isolated, and the effect of electric shock resistance is achieved.
Description
Technical field
The utility model relates to a kind of shockproof light-emitting diode base structure, particularly relates to a kind of shockproof light-emitting diode base structure that is applied to encapsulation LED crystal grain.
Background technology
Fig. 1 is for having the stereogram of known light-emitting diode base structure 10 now.Fig. 2 A is the cutaway view of existing known insulating base frame 13 with lead frame 12.Fig. 2 B is the cutaway view of existing known light-emitting diode base structure 10.
As shown in Figure 1, existing known light-emitting diode base structure 10 comprises a cooling base 11; At least one lead frame 12; An and insulating base frame 13.Have a protuberance 111 in the cooling base 11, have a groove 112 in the protuberance 111, groove 112 is provided with a crystal bonding area 113 and puts a LED crystal particle 40 in order to connect, and 12 distributions of lead frame are arranged at around protuberance 111.Cooling base 11 is inserted or is filled in the insulating base frame 13 after insulating base frame 13 first coated wire frame 12 moulding.
Shown in Fig. 2 A and Fig. 2 B, existing known light-emitting diode base structure 10 because cooling base 11 is conductor with lead frame 12, produces short circuit phenomenon for avoiding cooling base 11 and lead frame 12 to be in contact with one another during fabrication.So when mold profiled insulation pedestal 13, can cooling base 11 and lead frame 12 be separated by a thimble 14.But because thimble 14 only is for separating the interim instrument of cooling base 11 and lead frame 12, therefore after insulating base frame 13 moulding and the demoulding, thimble 14 will be removed from existing known light-emitting diode base structure 10, then can stay thimble opening 15 at existing known light-emitting diode base structure 10.
Only, thimble 14 only heads at lead frame 12 two ends respectively with the interstitial site of reservation with cooling base 11.Yet, if in the mold forming process, lead frame 12 is placed inequality, thimble 14 inserts inequalities or mould is placed deflection, all may make cooling base 11 and the lead frame spacing inequality about in the of 12, and then cause cooling base 11 and lead frame 12 about hypotelorism or even both the anxiety that touches is arranged, even punctured by electric current thereby the apparent UL safety standard that is difficult to by now.Moreover even if cooling base 11 and the spacing of lead frame about in the of 12 can be enough to meet UL safety standard, the protuberance 111 and the lead frame 12 of cooling base 11 still may be in contact with one another, therefore still can't be by the test of UL safety.
This shows that above-mentioned existing light-emitting diode base structure obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel shockproof light-emitting diode base structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing light-emitting diode base structure exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of novel shockproof light-emitting diode base structure, can improve general existing light-emitting diode base structure, make it have more practicality.Through constantly research, design, and, create the present invention who has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
Main purpose of the present utility model is, overcome the defective that existing light-emitting diode base structure exists, and provide a kind of novel shockproof light-emitting diode base structure, technical problem to be solved is to make it be placed on lead frame on the insulation spacer and the protuberance of cooling base keeps a determining deviation, in order to do making cooling base and lead frame be able to electrical isolation, whereby can effective anti-electric shock, be very suitable for practicality.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.A kind of shockproof light-emitting diode base structure according to the utility model proposes is characterized in that it comprises: a cooling base, and it has a protuberance, and this protuberance has a crystal bonding area; One insulation spacer, be located on this cooling base and be disposed at this protuberance around, wherein this insulation spacer has the thickness more than or equal to 0.01 millimeter; One lead frame is placed on this insulation spacer, and has a spacing with this protuberance, in order to do making this cooling base and this lead frame electrical isolation; And an insulating base frame, it coats this cooling base, this lead frame and this insulation spacer, so as to forming this shockproof light-emitting diode base structure.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid shockproof light-emitting diode base structure, wherein said protuberance has more a groove, and this crystal bonding area setting is wherein.
Aforesaid shockproof light-emitting diode base structure, wherein said spacing are more than or equal to 0.4 millimeter.
Aforesaid shockproof light-emitting diode base structure, the edge of wherein said lead frame are circular-arc.
Aforesaid shockproof light-emitting diode base structure, the edge of wherein said cooling base are that circular arc does not have burr.
Aforesaid shockproof light-emitting diode base structure, wherein said insulation spacer contacts with this protuberance.
Aforesaid shockproof light-emitting diode base structure, wherein said insulation spacer more protrudes on this cooling base, so that have this insulation spacer between this lead frame and this protuberance.
The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, the utility model provides a kind of shockproof light-emitting diode base structure, it is by being arranged on the certain thickness insulation spacer of tool on the cooling base and being disposed at around the protuberance of cooling base, and make the lead frame that is placed on the insulation spacer and the protuberance of cooling base keep a determining deviation, in order to do making cooling base and lead frame be able to electrical isolation, whereby can effective anti-electric shock.
For reaching above-mentioned effect, the utility model provides a kind of shockproof light-emitting diode base structure, and it comprises: a cooling base, and it has a protuberance, and protuberance has a crystal bonding area; One insulation spacer, be located on the cooling base and be disposed at protuberance around, wherein insulation spacer has the thickness more than or equal to 0.01 millimeter; One lead frame is placed on the insulation spacer, and has a spacing with protuberance, in order to do making cooling base and lead frame electrical isolation; And an insulating base frame, it coats cooling base, lead frame and insulation spacer, so as to forming shockproof light-emitting diode base structure.
By technique scheme, the shockproof light-emitting diode base structure of the utility model has following advantage and beneficial effect at least:
One, by certain thickness insulation spacer is arranged between cooling base and the lead frame with direct placement or to brush China ink, printing, injection molding method, cause cooling base and lead frame to keep a determining deviation between up and down, and make effectively electrical isolation of cooling base and lead frame.
Two, utilization is set around the protuberance lead frame on every side of cooling base in order to keep certain spacing with protuberance, so that effective electrical isolation still can be kept in the left and right sides of cooling base and lead frame.
In order to make any related art techniques person of haveing the knack of understand technology contents of the present utility model and to implement according to this, and according to the disclosed content of this specification, claim and graphic, any related art techniques person of haveing the knack of can understand the utility model relevant purpose and advantage easily, therefore will be described in detail detailed features of the present utility model and advantage in embodiment.
In sum, the utility model relates to a kind of shockproof light-emitting diode base structure, and it comprises cooling base, insulation spacer, lead frame and insulating base frame.Cooling base has protuberance, and protuberance has crystal bonding area.Insulation spacer be located on the cooling base and be disposed at protuberance around, wherein insulation spacer has the thickness more than or equal to 0.01 millimeter.Lead frame then is placed on the insulation spacer, and has spacing with protuberance, in order to do making cooling base and lead frame electrical isolation.Insulating base frame then coats cooling base, lead frame and insulation spacer, so as to forming shockproof light-emitting diode base structure of the present utility model.The utility model utilizes the design of spacing and insulation spacer and makes cooling base and lead frame be able to effective electrical isolation, can reach shockproof effect whereby.
The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is for having the stereogram of known light-emitting diode base structure now.
Fig. 2 A is the cutaway view of existing known insulating base frame and lead frame.
Fig. 2 B is the cutaway view of existing known light-emitting diode base structure.
Fig. 3 does not form the embodiment decomposing schematic representation of insulating base frame as yet for a kind of shockproof light-emitting diode base structure of the present utility model.
Fig. 4 is the embodiment cutaway view of the shockproof light-emitting diode base structure behind the formation insulating base frame of Fig. 3.
Fig. 5 is the embodiment cutaway view of the shockproof light-emitting diode base structure of another kind of the present utility model.
Fig. 6 is the embodiment schematic diagram of another kind of lead frame of the present utility model.
10: existing known light-emitting diode base structure
11: cooling base
111: protuberance
112: groove
113: crystal bonding area
12,22,32: lead frame
13: insulating base frame
14: thimble
15: the thimble opening
20,30: light-emitting diode base structure
21,31: insulation spacer
40: LED crystal particle
D: spacing
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of shockproof light-emitting diode base structure, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.For convenience of description, in following embodiment, components identical is represented with identical numbering.
Fig. 3 does not form the embodiment decomposing schematic representation of insulating base frame as yet for a kind of shockproof light-emitting diode base structure 20 of the present utility model.Fig. 4 is the embodiment cutaway view of the shockproof light-emitting diode base structure 20 behind the formation insulating base frame of Fig. 3.Fig. 5 is for being the embodiment cutaway view of the shockproof light-emitting diode base structure 30 of another kind of the present utility model.Fig. 6 is the embodiment schematic diagram of another kind of lead frame 32 of the present utility model.
As shown in Figures 3 and 4, present embodiment is a kind of shockproof light-emitting diode base structure 20 of the present utility model, and it comprises: a cooling base 11; One insulation spacer 21; One lead frame 22; An and insulating base frame 13.
As shown in Figure 3, cooling base 11 has a protuberance 111, and protuberance 111 has a groove 112.Have a crystal bonding area 113 in the groove 112, put thereon so that a LED crystal particle 40 connects.And for avoiding producing the point discharge effect because of getting shocked in inside, therefore, the edge of cooling base 11 is that circular arc does not have burr, so as to making the edge-smoothing of cooling base 11 and any projection of tool or most advanced and sophisticated not.
As shown in Figure 3, insulation spacer 21 can be made by Teflon, engineering plastic, pottery, glass, printing ink, and its be located at cooling base 11 and be disposed at cooling base 11 protuberance 111 around, and insulation spacer 21 has the thickness more than or equal to 0.01 millimeter.Moreover.Insulation spacer 21 can directly be placed between cooling base 11 and the lead frame 22, or to brush China ink, printing, injection molding method insulation spacer 21 is arranged between cooling base 11 and the lead frame 22.
In addition, in one embodiment, the shape of insulation spacer 21 can be circular hollow form, and the hollow bulb of the insulation spacer 21 of circular hollow form can be in order to being nested with around protuberance 111 as shown in Figure 3.Yet, in other embodiments, insulation spacer 21 can also be other Any shape (as: square hollow shape, two semicircular arcs that do not contact or the like), as long as can be erected at protuberance 111 next doors, and its size must be greater than the protuberance 111 of cooling base 11 and less than the insulating base frame 13 of outer rim, and make the lead frame 21 that is placed on the insulation spacer 21 can be by the thickness of insulating trip 21 and material and with cooling base 11 effective electrical isolation, thereby avoid electrical contact (short circuit).
As shown in Figure 4, in one embodiment, insulation spacer 21 can directly contact with protuberance 111.Yet, in other embodiments, can also not contact (figure does not show) with protuberance 111.
As shown in Figures 3 and 4, lead frame 22 is placed on the insulation spacer 21.Lead frame 22 just has a spacing d with the horizontal range of protuberance 111, and spacing d can be for more than or equal to 0.4 millimeter.Learn that after deliberation this spacing d just can make protuberance 111 positions of lead frame 22 and cooling base 11 can electrically not contact mutually because of getting shocked, therefore make that light-emitting diode base structure 20 can effective anti-electric shock.In addition, state according to the front and to chat,, also must avoid producing inner point discharge effect for making light-emitting diode base structure 20 effectively by safety.So the edge of lead frame 22 and/or ledge are circular-arc, for example circular arc does not have burr and/or circular arc does not have the tip.
In addition, according to shown in Figure 3, in one embodiment, the shape of lead frame 22 can be for having two metallic supports.Yet in other embodiments, lead frame also can have the metallic support (as: 4,6 or 8) of other quantity, and for example shown in Figure 6, lead frame 32 has 8 metallic supports.Yet lead frame of the present utility model is not limited in above-mentioned given shape shown in graphic, and may be the various shapes of not expressing.
As shown in Figure 4, insulating base frame 13 coats cooling base 11, insulation spacer 21 and lead frame 22, the therefore last shockproof light-emitting diode base structure 20 that forms present embodiment.Wherein the mold generation type of insulating base frame 13 then is to utilize a mould (figure does not show) that cooling base 11, insulation spacer 21 and lead frame 22 are placed wherein, and make insulating base frame 13 in the mode of ejection formation, injecting glue moulding or glue injection forming, so as to coating cooling base 11, insulation spacer 21 and lead frame 22, at last again with mold releasability.Usually, composition part of formation insulating base frame 13 can be general plastic rubber material.
As shown in Figure 5, present embodiment is the shockproof light-emitting diode base structure 30 of another kind of the present utility model.It is compared with Fig. 4, its most structure is identical, its discrepancy only is that insulation spacer 31 wherein makes progress bending to protrude into (section that is insulation spacer 31 presents similar L type) on the cooling base 11 on the contact point of contact protuberance 111, have insulation spacer 31 and make between lead frame 22 and the protuberance 111.Yet, because the insulation spacer among the thickness of insulation spacer 31 and Fig. 3 and Fig. 4 21 is identical all to be more than or equal to 0.01 millimeter, and the horizontal range d of lead frame 22 and protuberance 111 still is more than or equal to 0.4 millimeter, therefore, even upwards bending of insulation spacer 31, the insulation spacer 31 and the lead frame 22 of bending still have the space.In addition, the section of aforesaid insulation spacer 31 is L shaped shape, and promptly its bending angle is rough 90 degree, yet in other embodiments, the bending angle of insulation spacer 31 can not be rough 90 degree, and can be the circular arc bending mode greater than 90 degree.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma 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 are not in breaking away from the technical solutions of the utility model scope, 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 (7)
1. shockproof light-emitting diode base structure is characterized in that it comprises:
One cooling base, it has a protuberance, and this protuberance has a crystal bonding area;
One insulation spacer, be located on this cooling base and be disposed at this protuberance around, wherein this insulation spacer has the thickness more than or equal to 0.01 millimeter;
One lead frame is placed on this insulation spacer, and has a spacing with this protuberance, in order to do making this cooling base and this lead frame electrical isolation; And
One insulating base frame, it coats this cooling base, this lead frame and this insulation spacer, so as to forming this shockproof light-emitting diode base structure.
2. shockproof light-emitting diode base structure according to claim 1 is characterized in that wherein said protuberance has more a groove, and this crystal bonding area setting wherein.
3. shockproof light-emitting diode base structure according to claim 1 is characterized in that wherein said spacing is more than or equal to 0.4 millimeter.
4. shockproof light-emitting diode base structure according to claim 1, the edge that it is characterized in that wherein said lead frame is circular-arc.
5. shockproof light-emitting diode base structure according to claim 1, the edge that it is characterized in that wherein said cooling base are that circular arc does not have burr.
6. shockproof light-emitting diode base structure according to claim 1 is characterized in that wherein said insulation spacer contacts with this protuberance.
7. shockproof light-emitting diode base structure according to claim 6 is characterized in that wherein said insulation spacer more protrudes on this cooling base, so that have this insulation spacer between this lead frame and this protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201789673U CN201539828U (en) | 2009-09-30 | 2009-09-30 | Electric-shock resistant LED base structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201789673U CN201539828U (en) | 2009-09-30 | 2009-09-30 | Electric-shock resistant LED base structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539828U true CN201539828U (en) | 2010-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201789673U Expired - Fee Related CN201539828U (en) | 2009-09-30 | 2009-09-30 | Electric-shock resistant LED base structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104433028A (en) * | 2011-11-21 | 2015-03-25 | 长广科技有限公司 | Integrated luminous part of umbrella and its lead frame |
-
2009
- 2009-09-30 CN CN2009201789673U patent/CN201539828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104433028A (en) * | 2011-11-21 | 2015-03-25 | 长广科技有限公司 | Integrated luminous part of umbrella and its lead frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20130930 |