CN202972690U - Light-emitting diode (LED) bulb - Google Patents
Light-emitting diode (LED) bulb Download PDFInfo
- Publication number
- CN202972690U CN202972690U CN2012207017279U CN201220701727U CN202972690U CN 202972690 U CN202972690 U CN 202972690U CN 2012207017279 U CN2012207017279 U CN 2012207017279U CN 201220701727 U CN201220701727 U CN 201220701727U CN 202972690 U CN202972690 U CN 202972690U
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- heat conduction
- conduction core
- led
- flexible pcb
- light source
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses a light-emitting diode (LED) bulb which comprises a radiator and an LED light source. The LED light source is composed of a flexible circuit board and LED chips evenly installed on the flexible circuit board. Due to the fact that the flexible circuit board is flexible, the flexible circuit board can be wound around a heat conducting core on the radiator to form the shape matched with the heat conducting core. When the LED light source is installed, installation of the LED light source can be finished only by winding the flexible circuit board around the shape of the heat conducting core and attaching the flexible circuit board to the outer surface of the heat conducting core, the LED light source is in place in one step and is simple and rapid to install and operate and easy to produce, and production efficiency can be improved. An electrode contact point is arranged at one end of the flexible circuit board, electrical connection between the LED light source and an LED driving power source can be finished only by enabling the flexible circuit board to be connected with the LED driving power source through the electrode contact point, electrical connection operation between the LED light source and the LED driving power source is simplified, production efficiency can be improved, and production cost is reduced.
Description
Technical field
The utility model relates to the LED lighting field, particularly a kind of LED bulb of good heat dissipation effect.
Background technology
At present, LED light source is long, pollution-free with the life-span, light efficiency high just progressively replace incandescent and fluorescent light, so the LED bulb as light source with LED occurred.For solving the heat dissipation problem of LED, the LED bulb generally is comprised of lamp holder, radiator, LED light source and lampshade, and lamp holder, radiator are connected with lampshade and are connected, and LED light source is arranged on radiator, and the heat that LED light source produces is shed by radiator.Development gradually along with the LED bulb, existing LED light source generally is comprised of the LED lamp plate that several are equipped with LED, but the LED light source mounting means of existing LED bulb is different, a kind of is that several LED lamp plates are triangle or four jiaos of top ends that are arranged on radiator, or several LED lamp plates are fitted be fixed on the side wall surface of the heat conduction core that is positioned at the radiator center, no matter be which kind of mounting means, the installation of LED light source all needs the installation one by one of LED lamp plate, the workload of fitting operation is large, needs a large amount of manpower of cost; And the electrical connection complex procedures between each LED lamp plate and drive circuit, need be with each LED lamp plate and the wire bonds that is electrically connected with drive circuit, or each LED lamp plate and a connecting circuit board are electrically connected by welding, then will be electrically connected the complicated operation of operation between this connecting circuit board and drive circuit, and the welding procedure difficulty is larger, pad is more, welds badly easily to cause sealing-off, if sealing-off, will cause opening circuit of LED light source, stability is relatively poor.
Therefore, how simplifying the fitting operation of LED light source and be electrically connected operation, improving the inner stability that is electrically connected of LED bulb, the high efficiency and heat radiation of realizing the LED bulb is the technical problem that needs to be resolved hurrily in the industry.
Summary of the invention
Main purpose of the present utility model is to provide a kind of LED bulb, is intended to simplify the fitting operation of LED light source and be electrically connected operation, enhances productivity, and improves the inner stability that is electrically connected of LED bulb, realizes the high efficiency and heat radiation of LED bulb.
The utility model proposes a kind of LED bulb, comprise the lamp holder, radiator and the lampshade that connect successively, described radiator comprises radiating seat and is connected to the heat conduction core of described radiating seat upper end, on described heat conduction core, LED light source is installed, described LED light source is comprised of a flexible PCB and some LED chips of evenly being arranged on described flexible PCB, described flexible PCB forms the shape adaptive with described heat conduction core around described heat conduction core convolution, and the back side of described flexible PCB and the surface of described heat conduction core are fitted fixing; An end at described flexible PCB is provided with electrode contact, and described electrode contact is covered by the other end of described flexible PCB; Be provided with wire guide on described heat conduction core sidewall, with the wire of described electrode contact electrical connection from described wire guide by being connected with the LED driving power.
Preferably, described flexible PCB is pasted and fixed on the sidewall of described heat conduction core by the heat conduction adhesive.
Preferably, described flexible PCB comprises that the electricity that is arranged on described flexible PCB one end meets section, and described electrode contact is arranged on described electricity and connects in section, and described wire guide is arranged on the periphery that described electricity meets section.
Preferably, described heat conduction core is cylinder or stage body, described flexible PCB comprise after convolution with the adaptive side circuit board of the sidewall shape of described heat conduction core and convolution after the end face circuit board adaptive with the top end face of described heat conduction core.
Preferably, cylindrical, the vertical prismatic shape of described heat conduction core, truncated cone-shaped or positive terrace with edge shape.
Preferably, described heat conduction core is cone, and described flexible PCB is around the sidewall convolution of described heat conduction core.
Preferably, described heat conduction core is taper shape or orthopyramid shape.
Preferably, described heat conduction core is contour body, " U " body or arch bridge shape.
Preferably, described radiating seat and described heat conduction core are copper, copper alloy, the aluminum or aluminum alloy of high heat conduction and make, and evenly are provided with some vent ribs on the outside wall surface of described radiating seat; Described heat conduction core is arranged on the upper end middle position of described radiating seat, and described heat conduction core and described radiating seat are one-body molded or be threaded connection fixing.
Preferably, described lamp holder is threaded connection the lower end that is fixed on described radiating seat, and described LED driving power is connected with described lamp holder, and described LED driving power is arranged on the junction of described lamp holder and described radiating seat.
The beneficial effect of LED bulb of the present utility model is:
1, the installation of LED light source is simple, quick: LED light source is comprised of a flexible PCB and some LED chips of evenly being arranged on flexible PCB, because flexible PCB is comparatively soft, collapsible, flexible PCB can form the shape adaptive with heat conduction core around the heat conduction core convolution, when LED light source is installed, only need the shape convolution of flexible PCB around heat conduction core, and adopt viscose glue flexible PCB to be sticked on the installation that to complete LED light source on the outer surface of heat conduction core, settle at one go, fitting operation is simple, quick, be easy to produce, can enhance productivity.
2, electric connection between LED light source and LED driving power is simple to operate, pad is protected, be difficult for sealing-off, good stability: because LED chips all in LED light source all is arranged on same flexible PCB, only need to establish the pair of electrodes contact on flexible PCB, use wire and the welding of this electrode contact of the electrical connection of an end and LED driving power, make the electrical connection of flexible PCB and LED driving power, can complete the electrical connection between LED light source and LED driving power, need not as original LED light source, need one by one the LED lamp plate be connected with the LED driving power, simplified the electric connection operation between LED light source and LED driving power, greatly reduced the workload of this operation, can enhance productivity, reduce production costs, electrode contact only has a pair of, pad also only has a pair of, quantity is few, and electrode contact is arranged on an end of flexible PCB, after the LED light source installation, electrode contact is covered by the other end of flexible PCB, electrode contact is also covered by the other end of flexible PCB with the pad that is connected between wire, thereby this pad can be outside not exposed, pad can be protected, thereby the sealing-off phenomenon be difficult for to occur, and the good stability that is electrically connected between LED light source and LED driving power can improve the quality of LED lamp bulb.
When 3, LED light source is lighted, light is evenly distributed: LED chip evenly is arranged on flexible PCB, flexible PCB is pasted fixing around the surface of heat conduction core, thereby LED chip is evenly distributed on the surface of heat conduction core, the distribution of light that when LED light source is lighted, LED chip sends is even, can not produce shade.
4, radiating effect is excellent: flexible PCB sticks on the outer surface of heat conduction core, flexible PCB fully contacts with heat conduction core, heat conduction core can be conducted the heat that LED light source produces to radiator rapidly, by radiator with the heat Quick diffusing in air, good heat dissipation effect, can prevent that LED light source is overheated, extend the service life of LED light source.
Description of drawings
Fig. 1 is the structural representation that in an embodiment of the utility model LED bulb, heat conduction core is the radiator of cylinder;
Fig. 2 is the front view after flexible circuit plate development when in an embodiment of the utility model LED bulb, heat conduction core is cylinder;
Fig. 3 is when in an embodiment of the utility model LED bulb, heat conduction core is cylinder, and the structural representation of the radiator of LED light source is installed;
Fig. 4 is when in an embodiment of the utility model LED bulb, heat conduction core is cylinder, and the stereogram of the radiator of LED light source is installed;
Fig. 5 is when in an embodiment of the utility model LED bulb, heat conduction core is cylinder, the structural representation of LED bulb;
Fig. 6 is the STRUCTURE DECOMPOSITION figure of the radiator when heat conduction core and radiating seat split design in an embodiment of the utility model LED bulb;
Fig. 7 is the structural representation that in an embodiment of the utility model LED bulb, heat conduction core is the radiator of cone
Fig. 8 is the front view after flexible circuit plate development when in an embodiment of the utility model LED bulb, heat conduction core is cone;
Fig. 9 is when in an embodiment of the utility model LED bulb, heat conduction core is cone, the structural representation of LED bulb;
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 5, one embodiment of LED bulb of the present utility model is proposed, this LED bulb comprises lamp holder 1, radiator 2 and the lampshade 3 that connects successively, radiator 2 comprises radiating seat 10 and is connected to the heat conduction core 100 of radiating seat 10 upper ends, on heat conduction core 100, LED light source is installed, LED light source is housed in lampshade 3.LED light source is comprised of a flexible PCB 20 and some LED chips 201 of evenly being arranged on flexible PCB 20, shape after the side wall surface of the shape of this flexible PCB 20 and heat conduction core 100, end face launch is adaptive, because flexible PCB 20 is comparatively soft, collapsible, flexible PCB 20 can form the shape adaptive with heat conduction core 100 around heat conduction core 100 convolutions; When LED light source is installed, with the shape convolution of flexible PCB 20 around heat conduction core 100, and adopt viscose glue flexible PCB 20 to be sticked on the outer surface of heat conduction core 100, can complete the installation of LED light source, the installation of LED light source settles at one go, fitting operation is simple, quick, is easy to produce, and can enhance productivity.
Radiating seat 10 is reverse frustoconic, the lower end area is slightly little than the upper end area, be hollow setting in the lower end of radiating seat 10, be provided with adaptive screw thread on the outside wall surface of on the internal face of the lower end of radiating seat 10 and lamp holder 1 upper end, be threaded connection fixingly between radiating seat 10 and lamp holder 1, the LED driving power is arranged on the hollow position of lamp holder 1 and radiating seat 10 lower ends.Heat conduction core 100 is hollow setting, and the wire guide 101 on heat conduction core 100 communicates with the hollow position of radiating seat 10 lower ends.This radiating seat 10 comprises the sidewall that extends upward formation around radiating seat 10 edges, upper surface, and the outside wall surface in side wall inner surface and lampshade 3 lower ends is provided with corresponding screw thread, is threaded connection fixing between radiating seat 10 and lampshade 3.But radiating seat 10 comprises the circular cambered surface 110 of a reflection ray, and this circle cambered surface 110 is the formation that raises up at radiating seat 10 upper surface middle positions; Heat conduction core 100 is arranged on circular cambered surface 110, and is placed in the central authorities of arc of circle face 110, and heat conduction core 100 is the formation that raises up in the central authorities along circular cambered surface 110, and radiating seat 10, circular cambered surface 110 and heat conduction core 100 are formed in one.Circular cambered surface 110 is from himself upper end mediad lower edge inclination, can reflect the light that LED light source sends, and is conducive to improve light efficiency.
Radiating seat 10 and heat conduction core 100 are copper, copper alloy, the aluminum or aluminum alloy of high heat conduction and make, flexible PCB 20 sticks on the outer surface of heat conduction core 100, flexible PCB 20 fully contacts with heat conduction core 100, the heat that heat conduction core 100 can produce LED light source conducts rapidly to radiating seat 10, by radiating seat 10 with the heat Quick diffusing in air.Flexible PCB 20 is pasted and fixed on by the heat conduction adhesive on the sidewall of heat conduction core 100, and the heat conduction adhesive can be accelerated the heat-transfer rate between flexible PCB 20 and heat conduction core 100; Be provided with some louvres 103 on the outside wall surface of radiating seat 10, this louvre 103 communicates with radiating seat 10 hollow positions, lower end, can make the circulation of radiating seat 10 inner airs and extraneous air, realizes exchange heat, thereby improves radiating effect; Laterally be provided with the vent rib 102 of some annulars on the outside wall surface of radiating seat 10, can increase the contact area between radiating seat 10 and air, improve radiating rate; Above-mentioned design is the heat-sinking capability of heat radiation body 2 greatly, thereby farthest controls the temperature of LED light source, reaches to delay light decay and extend the LED light source purpose in service life.
To shown in Figure 9, heat conduction core 100 also can be made as cone as Fig. 7, and flexible PCB 20 is around the sidewall convolution of heat conduction core 100 and stick on the side wall surface of heat conduction core 100; For making 360 ° of uniformly light-emittings of LED bulb, wire stylet is arranged on the center of radiating seat 10 upper surfaces, and heat conduction core 100 is taper shape or orthopyramid shape arranges.
In addition, heat conduction core 100 also can be made as contour body, " U " body or arch bridge shape, and flexible PCB 20 is fitted in the surface of heat conduction core.
In addition, as shown in Figure 6, but split setting between heat conduction core 100 and radiating seat 10, be provided with the jack 111 adaptive with heat conduction core 100 lower ends in circular cambered surface 110 central position of radiating seat 10, being provided with adaptive screw thread on jack 111 internal faces with on the outside wall surface of heat conduction core 100 lower ends, be threaded connection fixing between heat conduction core 100 and radiating seat 10.
The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. LED bulb, comprise the lamp holder, radiator and the lampshade that connect successively, described radiator comprises radiating seat and is connected to the heat conduction core of described radiating seat upper end, on described heat conduction core, LED light source is installed, it is characterized in that, described LED light source by flexible PCB and the some LED chips that evenly are arranged on described flexible PCB form, described flexible PCB forms the shape adaptive with described heat conduction core around described heat conduction core convolution, and the back side of described flexible PCB and the surface of described heat conduction core are fitted fixing; An end at described flexible PCB is provided with electrode contact, and described electrode contact is covered by the other end of described flexible PCB; Be provided with wire guide on described heat conduction core sidewall, with the wire of described electrode contact electrical connection from described wire guide by being connected with the LED driving power.
2. LED bulb according to claim 1, is characterized in that, described flexible PCB is pasted and fixed on the sidewall of described heat conduction core by the heat conduction adhesive.
3. LED bulb according to claim 1 and 2, is characterized in that, described flexible PCB comprises that the electricity that is arranged on described flexible PCB one end meets section, and described electrode contact is arranged on described electricity and connects in section, and described wire guide is arranged on the periphery that described electricity meets section.
4. LED bulb according to claim 1, it is characterized in that, described heat conduction core is cylinder or stage body, described flexible PCB comprise after convolution with the adaptive side circuit board of the sidewall shape of described heat conduction core and convolution after the end face circuit board adaptive with the top end face of described heat conduction core.
5. LED bulb according to claim 4, is characterized in that, described heat conduction core is cylindrical, vertical prismatic shape, truncated cone-shaped or positive terrace with edge shape.
6. LED bulb according to claim 1, is characterized in that, described heat conduction core is cone, and described flexible PCB is around the sidewall convolution of described heat conduction core.
7. LED bulb according to claim 6, is characterized in that, described heat conduction core is taper shape or orthopyramid shape.
8. LED bulb according to claim 1, is characterized in that, described heat conduction core is contour body, " U " body or arch bridge shape.
9. LED bulb according to claim 1, is characterized in that, described radiating seat and described heat conduction core are copper, copper alloy, the aluminum or aluminum alloy of high heat conduction and make, and evenly is provided with some vent ribs on the outside wall surface of described radiating seat; Described heat conduction core is arranged on the upper end middle position of described radiating seat, and described heat conduction core and described radiating seat are one-body molded or be threaded connection fixing.
10. the described LED bulb of any one according to claim 1 or 9, it is characterized in that, described lamp holder is threaded connection the lower end that is fixed on described radiating seat, and described LED driving power is connected with described lamp holder, and described LED driving power is arranged on the junction of described lamp holder and described radiating seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207017279U CN202972690U (en) | 2012-12-18 | 2012-12-18 | Light-emitting diode (LED) bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207017279U CN202972690U (en) | 2012-12-18 | 2012-12-18 | Light-emitting diode (LED) bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972690U true CN202972690U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207017279U Expired - Fee Related CN202972690U (en) | 2012-12-18 | 2012-12-18 | Light-emitting diode (LED) bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197281A (en) * | 2014-07-25 | 2014-12-10 | 厦门市瀚锋光电科技有限公司 | Light source for even light distribution |
| CN105698024A (en) * | 2016-03-31 | 2016-06-22 | 中山市帝森电子科技有限公司 | Energy-saving LED illumination lamp |
| CN105864662A (en) * | 2016-03-31 | 2016-08-17 | 中山市帝森电子科技有限公司 | Environmental-friendly LED lamp |
-
2012
- 2012-12-18 CN CN2012207017279U patent/CN202972690U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197281A (en) * | 2014-07-25 | 2014-12-10 | 厦门市瀚锋光电科技有限公司 | Light source for even light distribution |
| CN105698024A (en) * | 2016-03-31 | 2016-06-22 | 中山市帝森电子科技有限公司 | Energy-saving LED illumination lamp |
| CN105864662A (en) * | 2016-03-31 | 2016-08-17 | 中山市帝森电子科技有限公司 | Environmental-friendly LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |