TWM398083U - LED bulb - Google Patents

Description

8083 December 08, 2008, the shuttle is replacing €. 5. New description: [New technical field] [0001] A kind of light-emitting diode bulb, especially with a heat sink exposed outside, and having a circuit for collecting current A light-emitting diode bulb that avoids energization of the heat sink. [Prior Art]

[0002] Since the light-emitting diode (LED) has many advantages such as long service life, low power consumption, high brightness, and environmentally friendly materials, in addition to the progress of the light-emitting diode process and the cost reduction, in addition to the use of traffic lights or In addition to the lamp number on the appliance, it is further used in environmental decoration and lighting fixtures. In order to make the light-emitting diode suitable for use in a general light bulb, the prior art has combined the light-emitting diode with the outer casing of a conventional light bulb, such as the Republic of China Patent Certificate No. 1293807 "Light-emitting diode with constant current circuit" "Light bulb", the prior patent discloses that a Thai diode bulb includes a lamp cap, a lamp housing, a plurality of LEDs in series, and a step-down constant current circuit. Wherein the lamp cap has an electrode connected to the power source, and the plurality of light emitting diodes and the step-down constant current circuit are connected to provide a constant current to cause the light emitting diode to emit light, and the light emitting diode bulb is mounted on the conventional lamp holder It can be used directly. However, since the driving LED needs a stable DC current, the driving circuit that converts the AC mains into a DC current will continuously generate and accumulate waste heat during the conversion process. Moreover, the DC current also generates a lot of waste heat through the impedance of the light-emitting diode, and the long-term use of the excessive temperature will damage the light-emitting diode or the driving circuit, or the service life is reduced. [0003] Therefore, the industry has developed a variety of light-emitting diode bulbs with a heat-dissipating structure. Form No. A0101 Page 4 of 17 M398083 December 08, 099 revised replacement page

'As shown in the Republic of China Patent Certificate No. M358247, "LED lamps for various lamp holders", the prior disclosure discloses that an LED heat dissipation module (丨) has a combined end forming an opening (1 2 ), the opening (1 2 The outer periphery forms an annular snap groove (13) combined with the corresponding base (2), and the other end of the opening is combined with an LED light-emitting element (3), so that the LED light-emitting element (3) and the base (2) The electrical connection, the LED heat dissipation module (1) is located at the periphery of the LED light-emitting element (3) and the lamp holder (2) to exert heat conduction effect. Although the creation provides the heat dissipation effect of the LED heat dissipation module, if the LED light emitting element is surrounded by the LED heat dissipation module, the light direction of the LED light emitting element is limited to the front. [0004] Therefore, there is another type of light-emitting diode lamp such as the Republic of China Patent Certificate No. 1312850 "Light-emitting diode lamp with heat dissipation structure", the light-emitting diode lamp includes a lamp holder, and the lamp The socket is connected to a heat sink and a plurality of light emitting diode modules thermally connected to the heat sink. The light emitting diode module is placed on the periphery of the heat sink. The heat sink comprises a hollow cylinder. The lamp socket is provided with a plurality of vent holes, and the vent holes form an air flow path with the cylinder. The prior creation surrounds the periphery of the heat sink with the light-emitting diode, enlarging the illumination range of the light-emitting diode, and directly guiding the heat of the light-emitting diode to the heat sink. However, it is not mentioned in the previous creation whether or not a glass lampshade is installed. In order to conform to the ordinary people's impression of the light bulb and the safety of use (to avoid accidental contact with the circuit or the heat sink), most products still have a glass lampshade. If the previous creation directly covers the light-emitting diode and the heat sink, the heat sink can only dissipate heat through the airflow with the vent hole, and if the airflow speed is not high, or the temperature is high, the waste heat is still Will continue to accumulate on the radiator, the watch number A0101 page 5 / a total of 7 pages 1398083 December 08 099 nuclear replacement ^ and air flow in the glass shade is not easy, long-term use will still make the light-emitting diode And the glass lamp cover is overheated. [0005] Therefore, the conventional light-emitting diode lamps still need to be improved in heat dissipation capability and lighting effects. [New content]

[0006] Since the conventional light-emitting diode bulb is provided with a lampshade in consideration of the user's feeling, it is troubled by overheating due to poor ventilation after the lampshade is installed. Therefore, the purpose of the present invention is to provide a light-emitting diode bulb with enhanced heat dissipation capability, and to effectively guide the heat in the lamp cover to the heat dissipation structure outside the bulb, so that the waste heat in the lamp housing does not accumulate on the light-emitting diode substrate. . [0007] In the present invention, a light-emitting diode bulb is connected to a plurality of light-emitting diode substrates by using a heat-conducting lamp post, and the light-emitting diode substrates surround the heat-conducting lamp post. The heat conducting lamp post has a through hole, and the plurality of light emitting diode substrates have a first electrode end and a second electrode end. A first bus bar is electrically connected to the first electrode ends of the light emitting diode substrates, and is connected to a first wire that collects currents of the light emitting diode substrates. The second bus bar is electrically connected to the second electrode ends of the LED substrates, and is connected to a second wire that collects the currents of the LED substrates. The heat conducting lamp post is connected to a bearing surface of a heat dissipating body. The heat dissipating body further has a lead hole through which the first wire and the second wire pass, and a connecting portion to connect a lamp cover covering the heat conducting lamp post. An electrical connection is electrically connected to the heat dissipating body, and the electrical connection structure is electrically connected to the first wire and the second wire passing through the lead hole, and the electrical connection structure is connected to a power source and passes through the first wire and The second wire is powered by the form numbers A0101 Page 6 of 17 M398083 ψ After December 08, 2008, the page is replaced by a light-emitting diode substrate.

[0008] With the above technical features, the plurality of light-emitting diode substrates in the lamp cover guide heat to the heat-conducting lamp post, and the heat-conducting lamp post conducts heat to the heat sink. Since the heat dissipating body is exposed outside the lampshade, the heat dissipating area in contact with the air is large, and the heat in the lampshade can be quickly derived. Moreover, more importantly, the currents of the light-emitting diode substrates are completely collected on the first bus bar and the second bus bar, and the first wire and the second wire are connected to the power receiving structure through the first wire and the second wire. . Therefore, current does not pass through the heat lamp post and the heat sink. The heat sink can be exposed outside the lamp cover and directly in contact with the air to ensure better heat dissipation than conventional techniques, in order to ensure that the heat conducting lamp post and the heat sink do not have current. [Embodiment]

[0009] The present invention is a light-emitting diode bulb, and the technical content of the present invention will be described below with reference to the drawings. Referring to FIG. 1 and FIG. 2 , the light-emitting diode bulb is connected to a plurality of light-emitting diode substrates 3 by a heat-conducting lamp 枉 2 , and the heat-conducting lamp post 2 has a hollow column shape, and the heat-conducting lamp post 2 has a through-hole. The through hole 21 is provided with a plurality of grooves 23 for increasing the air contact area on the inner wall surface of the through hole 21. The light-emitting diode substrates 3 are connected to and surround the periphery of the heat-conducting lamp post 2, and each of the light-emitting diode substrates 3 has a plurality of light-emitting diodes 31 connected in series. The light-emitting diode substrates 3 surround the periphery of the heat-conducting lamp post 2, so that the light-emitting diodes 31 can provide a multi-directional surround illumination effect. The upper and lower ends of the LED substrate 3 define a first electrode end and a second electrode end, respectively, and the first electrode end and the second electrode end are respectively used for guiding the high voltage end of the DC power and At the low voltage end, the light emitting diodes 31 are driven to emit light by directing DC power. In order to guide the electric form numbers of the light-emitting diode substrates 3, Α0101, page 7/17, ΜΪ98083, December 08, 099, the light-emitting diode bulb further includes a first bus bar 4 and a first The first bus bar 5 and the second bus bar 5 each have a conductive surface 41 51 and an insulating surface 42 ' 52 ° with respect to the other side of the conductive surfaces 41 , 51 . The conductive surfaces 41 and 51 of the second busbar 5 are electrically connected to the LED substrates 3, and the first voltage terminals of the LED substrates 3 are electrically connected to the first busbar 4. The second voltage terminals of the LED substrates 3 are electrically connected to the second bus bar 5 . The first bus bar 4 and the second bus bar 5 are connected to the LED substrate 3 and electrically connected to each other. The connection method that can be easily considered by a person skilled in the art should include To the extent that this case can be explained. Therefore, the current flowing in and out of the light-emitting diode substrates 3 passes through the first busbar 4 and the second busbar 5. The conductive surface 41 of the first bus bar 4 is further connected to a first wire 43 that collects the current of the LED substrate 3. The conductive surface 51 of the second bus bar 5 is also connected to a plurality of light emitting poles. The second wire 53 of the body substrate 3 current. As shown in Figure 1, 2, by

The first bus bar 4 is located at the end of the heat conducting lamp post 2, so that the first wire 43 can be guided to the other end of the heat conducting lamp post 2 through the through hole 21. Further, the heat conducting lamp post 2 is provided with a plurality of lead wires 22 for facilitating the routing of the first wire 43 or the first wire 53. The heat conduction lamp post 2 is connected to the light-emitting diode substrate 3, the first bus bar 4 and the second bus bar 5, and one end of the heat-conducting lamp post 2 is connected to a heat sink 7'. The heat sink 7 has a contact and a connection. The heat-dissipating surface 7 of the heat-conducting lamp 枉 2 can be connected to the heat-conducting lamp post 2 by means of a screw or a tool which can be easily considered by a person skilled in the art. For example, the heat-dissipating body 7 and the heat-conducting lamp post 2 can also be connected. The internal thread and the external thread are screwed together through the surfaces of the two. The heat dissipating body 7 has a lead hole 72 through which the first wire 43 and the second wire 53 pass, and has a connecting portion 73. Form No. A0101, page 8/17. Pressed on December 08. The connecting portion 73 is used to connect a lampshade, the lampshade! The connecting end 11 is engaged with the connecting portion 73, and the lampshade 1 covers the heat conducting lamp post 2. The light-emitting diode bulb is similar in appearance to a conventional light bulb to match the general user's perception of the light fixture. An electrical connection structure 8 is electrically connected to the heat dissipating body 7, and the electrical connection structure 8 is electrically connected to the first wire 43 and the second wire 53 passing through the lead hole, and the power receiving structure 8 is connected to a power source. The light-emitting diode substrates 3 are powered by the first wires 43 and the second wires 53. In the above technical content, it can be seen that the current is introduced by the power receiving structure 8 and passes through the first wire 43 'the first bus bar 4, the plurality of light emitting body plates 3, the second bus bar 5, and the second wire 53. Finally, returning to the power receiving structure 8 forms a current loop. The conductive surfaces 41 and 51 and the insulating surfaces 42 and 52 are distinguished by the first bus bar 4 and the second bus bar 5, thereby ensuring that no current flows through the heat conducting lamp post 2 and the heat sink 7. Therefore, the heat dissipating body 7 can be exposed outside the lampshade 1, and the outer periphery of the heat dissipating body 7 has a heat dissipating surface exposed to the air, and the heat dissipating surface exposed to the air is further exposed on the premise of avoiding electric shock of the user. It has a plurality of fins 7 to improve heat dissipation. As shown in FIG. 1 and FIG. 2 , the power receiving structure 8 includes a conductive metal seat 81 that is coupled to the power source, and a power conversion circuit 83 that electrically connects the conductive metal base 81 and outputs DC power. An insulating housing 82 connected to the conductive metal seat 81 and the heat sink 7 and separating the two. The foregoing power source may be a lamp holder that is common in indoors. The conductive metal seat 81 is combined with the lamp holder to obtain electric power. The shape of the conductive metal seat 81 can be changed according to the specifications of the existing lamp holder. The insulating body 8 2 and the heat dissipating body 7 are respectively provided with an inner screw and an outer screw which are screwed to each other. The first wire 43 and the second wire 53 are electrically connected to the power conversion circuit 83, and the power conversion circuit 83 outputs the DC power. The military number A0101 page 9/17 pages The replacement page is replaced after December 08, 099.

The force flows through the first wire 43 and the second wire 53 to further flow a current through the light-emitting diode substrates 3 to illuminate the light-emitting diode 31. One end of the heat conducting lamp post 2 is connected to the carrying surface 71 of the heat dissipating body 7 , and the other end of the heat conducting lamp post 2 is disposed at the open end of the through hole 21 to form another circuit substrate 6 connecting the plurality of LEDs 61 . A third wire 62 and a fourth wire 63 pass through the through hole 21 and the lead hole 72, and the third wire 62 and the fourth wire 63 are connected to the power conversion circuit 83 to conduct the DC power. Thereby, the circuit board 6 and the plurality of light-emitting diodes 61 and 31 on the plurality of light-emitting diode substrates 3 can provide illumination in a plurality of directions in front of the heat-conducting lamp post 2 . Further, the circuit board 6 can be directly locked to the heat conducting lamp post 2 by screws, and the circuit board 6 directly contacts the heat conducting lamp post 2 to conduct heat to the heat conducting lamp post 2.

[0010] Through the above techniques, the present invention has achieved several features superior to conventional light-emitting diode bulbs. First: In this case, the lampshade 1 is combined with the light-emitting diodes 31, 61 to allow the user to feel the same lighting effect as the conventional light bulb. Secondly, since the first bus bar 4 and the second bus bar 5 collect current, current is prevented from passing through the heat conducting lamp post 2 and the heat dissipating body 7, so that the heat dissipating body 7 can be exposed to the air, and the user contacts the heat dissipating body 7 There will be no electric shock. Third, the heat dissipating body 7 is exposed to the air, so that the heat of the LED substrate 3 and the circuit board 6 is guided to the heat dissipating body 7 through the heat conducting lamp post 2, and the heat is dissipated into the air. It is guided to the heat sink 7 to ensure that the plurality of light-emitting diodes 31, 61 are not damaged by high temperature. [0011] While the present invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and it is to be understood that those skilled in the art can make a few modifications and refinements without departing from the spirit and scope of the present invention. It should be included in this new form number Λ0101, page 10 of 17 M398083, December 08, 099, which is the replacement page. Therefore, the scope of protection of this new type is subject to the definition of the patent application scope. [0012] In summary, the novel structure of the present invention enhances the above-mentioned effects, and should fully comply with the novelty and progressive statutory innovation patent requirements, and submit an application according to law, and invites your office to approve the new patent application. Creation, to the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS [0013] FIG. 1 is an exploded view (1) of the light-emitting diode bulb.

2 is an exploded view (2) of the light-emitting diode bulb. 3 is a cross-sectional view of the light emitting diode bulb.

[Description of main component symbols] [0016] 1..... • Lampshade [0017] 11..... Connection know [0018] 2..... • Thermally conductive lamp post [0019] 21 . · · · • •Beton Hole [0020] 22 · · · · ••Lead slot [0021] 23 · · · ·•• Groove [0022] 3..... • Light-emitting diode substrate [0023] 31 · · · ·••Light Emitting Diode [0024] 4..... Diode Board [0025] 41 · · · · •• Conductive Surface Form No. A0101 Page 11 of 17 1B98083 [0026] 42 · · · · [0027] 43 · · · * .•The first wire [0028] 5..... The first plate [0029] 51 · · · · • · ^*·Electric surface [0030] 52 · · · · [ 0031] 53 · · · · •.Second wire [0032] 6..... ••Circuit board [0033] 61 · · · ·••Lighting diode [0034] 62 · * · · •• V line [0035] 63 . · · · •. Fourth wire [0036] 7 ———— •• Heat sink [0037] 70 •...·••Block [0038] 71 . · · · ·. [0039] 72 · · · ·••Lead hole [0040] 73 · · · · •• Connection [0041] 8 · · · * •. Power connection structure [0042] 81 ———— •• Conductive metal seat [0043] 82 . . . • • Insulated housing [0044] 83 · · · · Power converter circuit form number Λ0101 Page 12 of 17 December 099 Day correction replace i

Claims (1)

M398083 ____ December 8, 2008, the replacement of the nuclear page, the scope of application: 1. A light-emitting diode bulb, comprising: a heat-conducting lamp post, a plurality of light-emitting diode substrates connected around the circumference of the heat-conducting lamp post The heat conducting lamp post has a through hole, and the plurality of light emitting diode substrates have a first electrode end and a second electrode end; and a first bus bar electrically connecting the first of the light emitting diode substrates An electrode end connected to a first wire that collects currents of the light emitting diode substrates; a second bus bar electrically connected to the second electrode ends of the light emitting diode substrates, and connected to a second wire collecting currents of the light emitting diode substrates; a heat sink having a contact and a bearing surface connecting the heat conducting lamp post, a lead hole through which the first wire and the second wire pass, a connecting portion to connect a lamp cover covering the heat conducting lamp post; and an insulating connecting structure connecting the heat sink And the power receiving structure is electrically connected to the first wire and the second wire passing through the lead hole, and the power receiving structure is connected to a power source to drive the light emitting diodes through the first wire and the second wire Body substrate. 2. The light-emitting diode bulb according to claim 1, wherein the power-receiving structure comprises a conductive metal seat coupled to the power source, and a power electrically connected to the conductive metal seat to output a direct current power. a conversion circuit, an insulating case connected to the conductive metal seat and the heat sink and separating the two. 3. The LED bulb of claim 2, wherein the power conversion circuit outputs the DC power to a first wire and a second wire electrically connected to the power conversion circuit. 099214454 Form No. Λ0101 苐13 pages/ Total 17 pages 0993439170-0 ^1398083 12 12 12 12 卩 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 发光And a circuit board that is connected to the plurality of light-emitting diodes, the circuit substrate has a third wire and a fourth wire passing through the through hole and the lead hole, and the third wire and the fourth wire are connected to the power receiving structure The light-emitting diode bulb according to the first aspect of the invention, wherein the inner wall surface of the through-hole of the heat-conducting lamp post is provided with a plurality of grooves for increasing the air contact area. The light-emitting diode bulb of claim 1, wherein the outer periphery of the heat sink has a heat dissipation surface exposed to the air. The light-emitting diode bulb according to claim 1, wherein the first bus bar and the second bus bar each have a conductive surface electrically connected to the first electrode end or the second electrode end, and an insulating surface. . The light-emitting diode bulb of claim 4, wherein the first spring is connected to the conductive surface of the 4th-bus bar, and the second wire is connected to the conductive surface of the second busbar. 099214454 Form number Λ0101 Page 14 of 17 0993439丨70-0