TWI384170B - Led lamp with replaceable light unit - Google Patents

Description

Light-emitting diode (LED) bulb structure

The invention relates to a light bulb, in particular to a bulb which can be mounted on a lamp and can replace the lamp core.

Traditional light-emitting diodes (LEDs) are widely used in traffic lights, car lights, flashlights, mobile phones, and lamps because of their small size, low power consumption, and long life. And a large outdoor board.

Therefore, many of the current LEDs are mounted on a circuit board or a substrate, and then the substrate is mounted inside a heat dissipation housing, and a lamp cover is mounted on the front end of the heat dissipation housing to form a lamp assembly for use. The bulb structure, such as the national patent certificate number M354691, M356067, M356852, M358239, M371846, M372427, M372798, M373439, M374538. In these publicly approved LED bulb structures, when a light-emitting diode (LED) on the light-emitting diode (LED) inside the LED light bulb structure is damaged, a completely new light-emitting diode is directly replaced. The structure of the light bulb, and then the structure of the broken light-emitting diode bulb is discarded, so that the user can only replace the light-emitting diode lamp core, so that the structure of the light-emitting diode lamp that is discarded will increase environmental protection problems and also cause Waste of resources and money.

Therefore, the main object of the present invention is to solve the above-mentioned conventional light-emitting diode (LED) bulb structure problem, and propose a light-emitting diode (LED) bulb structure that can replace the light-emitting diode (LED) lamp core.

In order to achieve the above object, the present invention provides a light-emitting diode (LED) bulb structure capable of replacing a lamp core, comprising: a heat dissipation housing having a plurality of annular heat dissipation fins on an outer surface thereof, the heat dissipation housing being on one end Having an opening, the other end has a plurality of interfaces, the opening has a partition and a threaded portion, the partition has a through hole; and the housing has an accommodating space inside the heat dissipating housing, the accommodating space and The through hole is in communication with the set of interfaces; a metal lamp cap is disposed on the set of interfaces, and has a screwing portion and a lamp cap insulated from the screwing portion; a driving circuit board is configured In the accommodating space, there are two power input lines and two power output lines, one of the power input lines is electrically connected to the screwing portion, the other power input line is electrically connected to the lamp cap, and the other two power outputs The wire is connected to a connector; the lamp chip has a sheet-shaped aluminum base, and one side of the base has a circuit board insulated from the base, and the circuit board electrically connects at least one light-emitting element The board is more electrically a soldering surface of the power wire; and a through hole for the two power wires to pass through the base and the circuit board, the two power wires are connected with a connector, and the connector and the driving circuit board have two power outputs The connector of the wire is inserted for the driving circuit board to transmit the driving signal to the lamp chip; a gasket is disposed on one side of the base; and a lamp cover is disposed on the opening, Having a joint portion having a threaded surface on a surface thereof, the threaded surface being engaged with a threaded portion in the opening; In order to achieve the replacement of the lamp chip, the structure of the lamp can be reused without the need to discard the entire bulb for environmental protection and cost saving.

The detailed description and technical contents of the present invention are as follows with reference to the drawings: Please refer to the first drawings A and B, which are the structural decomposition of the light-emitting diode bulb of the first embodiment of the present invention and the side of the first figure A. A schematic cross-sectional view. As shown in the figure: the light-emitting diode (LED) bulb structure of the replaceable lamp core of the present invention comprises: a heat-dissipating housing 1, a metal lamp cap 2, a driving circuit board 3, a lamp chip 4, and a The gasket 5 and a lamp cover 6.

The heat dissipating casing 1 is formed in a cup shape by a heat-dissipating metal material (aluminum), and has an outer annular surface having a plurality of annular fins 11 having an opening 12 at one end and a set of interfaces at the other end. 13. The opening 12 has a partition 14 and a threaded portion 15 having a through hole 16 therein. In addition, an accommodating space 17 is defined in the heat dissipating housing 1 , and the accommodating space 17 communicates with the through hole 16 and the set of interfaces 13 .

The metal cap 2 is a group interface 13 disposed on the heat dissipating casing 1 and has an annular screwing portion 21 and a lamp cap 22 insulated from the screwing portion 21. Since the metal lamp cap 2 is conventional, it is not mentioned here.

The driving circuit board 3 is disposed in the accommodating space 17 inside the heat dissipating housing 1 and has two power input lines 31, 31' and two power output lines 32, and the power input line 31 is screwed The portion 21 is electrically connected, the other power input line 31 ′ is electrically connected to the base 22 , and the second power output line 32 is connected to a connector 33 .

The lamp base 4 has a sheet-shaped aluminum base 41. One side of the base 41 has a circuit board 42 insulated from the base 41. The circuit board 42 is electrically connected to the at least one light-emitting element 43. The circuit board 42 further has a soldering surface 421 electrically connected to the two power wires 45. In addition, the base 41 and the circuit board 2 are provided with a through hole 44 through which the two power wires 45 pass, and the two power wires 45 are connected with a connector 46, and the two power outputs of the connector 46 and the driving circuit board 3 The connector 33 of the wire 32 is inserted for the drive circuit board 3 to transmit the drive signal to the lamp chip 4 to drive the light-emitting element 43 to illuminate. In the figure, the light-emitting element 43 is a light-emitting diode.

The spacer 5 is annular and made of a plastic or rubber material. The spacer 5 is disposed on one side of the base 41.

The lamp cover 6 is made of a transparent plastic material and has an engaging portion 61 having a threaded surface 62 on the surface thereof. The threaded surface 62 is engaged with the threaded portion 15 in the opening 12. At the same time, the bottom of the joint portion 61 is pressed against the side of the base 41, so that the base 41 is firmly assembled in the opening 12.

Please refer to the first figure B, which is a schematic cross-sectional view of the first figure A. As shown in the figure: when the metal lamp cap 2, the driving circuit board 3, the lamp chip 4, the gasket 5 and the lamp cover 6 are assembled with the heat dissipating casing 1, the metal lamp cap 2 and the conventional lamp holder (Fig. When the connection is not shown, the external power can be transmitted to the driving circuit board 3 through the lamp holder and the metal lamp cap 2 via the two power input lines 31, 31', and the driving circuit board 3 drives the lamp core. The light-emitting element 43 on the sheet 4 is illuminated, and the light generated by the light-emitting element 43 is projected by the globe 6 to the outside.

When the light-emitting element 43 on the lamp chip 4 is damaged, the user can pass through the lamp cover. 6 is screwed into the opening 12, the lamp cover 6 is unscrewed from the opening 12, the spacer 5 is removed, and the connector 46 on the two power wires 45 of the base 41 is connected to the two power output lines 32. After the separator 33 is separated, the lamp chip 4 can be replaced, so that the bulb structure can be reused without the need to discard the entire bulb for environmental protection and cost saving.

Please refer to FIG. 2A, which is a schematic exploded view of a light-emitting diode bulb according to a second embodiment of the present invention. As shown in the figure, the embodiment is substantially the same as the structure disclosed in the first and second figures, except that the threaded surface 62 of the joint portion 61 of the lamp cover 6 is changed to a latch 63, and the opening of the heat dissipating housing 1 The inner threaded portion 15 is changed to a recessed groove 18 which is L-shaped and has an inlet 181 and a slide 182.

Please refer to the second figure B~D for the combined operation of the lampshade and the heat dissipation housing of the second figure A. As shown in the figure: after the metal lamp cap 2, the driving circuit board 3, the lamp chip 4, and the spacer 5 are assembled with the heat dissipating casing 1, the latch 63 of the lamp cover 6 is defined by the inlet 181 of the recessed groove 18. After the entry, the lamp cover 6 is slid on the slide 182 by rotating the lamp cover 6, so that the lamp cover 6 and the opening 12 of the heat dissipation housing 1 can be quickly and easily combined.

Please refer to FIG. 3A, which is a schematic exploded view of a light-emitting diode bulb according to a third embodiment of the present invention. As shown in the figure, the embodiment is substantially the same as the structure disclosed in the above third and fourth figures, except that the base 41 has a plurality of positioning ports 47, and the partition 14 in the heat dissipation housing 1 has a plurality of positioning thereon. Block 141, the positioning block 141 has a gap 19 with the inner wall of the opening 12.

Please refer to the third figure B~E, which is a schematic diagram of the combination of the lampshade, the lamp chip and the heat dissipation shell of the third figure A. As shown: when the metal cap 2, drive electricity After the assembly of the slab 3, the stencil 4, and the spacer 5 is completed, the joint portion 61 of the cover 6 is firstly assembled in the gap 19 formed by the positioning block 141 and the inner wall of the opening 12, At the same time, the latch 63 of the lamp cover 6 is aligned with the inlet 181 of the slot 18 to rotate the lamp cover 6 so that the latch 63 slides on the slide 182, so that the lamp cover 6 and the opening of the heat dissipation housing 1 can be opened. 12 quick and easy combination.

Please refer to FIG. 4A, which is a schematic exploded view of a light-emitting diode bulb according to a fourth embodiment of the present invention. As shown in the figure, the positioning block 141 on the partition 14 of the heat dissipation housing 1 is changed into a resilient compression mechanism 10, and the compression mechanism 10 has a cylinder 101 on the partition 14 and the cylinder The upper end of the 101 is provided with a spring 102 and a pressing piece 103. The pressing piece 103 has a square cross section, and the two wings 1031 are slightly warped. At the same time, in order to match the steering design of the compression mechanism 10, the inner diameter of the positioning port 47 on the base 41 becomes large.

Please refer to the fourth figure B~F, the schematic diagram of the combination of the lampshade, the lamp chip and the heat dissipation shell of the fourth figure A. As shown in the figure, after the metal cap 2 and the driving circuit board 3 are assembled with the heat dissipating casing 1, the pressing piece 103 is turned, so that the wings 1031 of the pressing piece 103 are in the same direction as the positioning port 47. The positioning port 47 is aligned with the pressing piece 103 and the base 41 is placed on the partition plate 14, and the pressing piece 103 is rotated to press the two wings 1031 of the pressing piece 103 against the base 41. . Then, the joint portion 61 of the lamp cover 6 is first assembled in the gap 19 formed by the pressing mechanism 10 and the inner wall of the opening 12, while the latch 63 of the lamp cover 6 is aligned with the inlet 181 of the recessed groove 18, Rotating the lamp cover 6 to slide the cassette 63 on the slide 182 allows the lamp cover 6 to be quickly and easily coupled to the opening 12 of the heat dissipation housing 1.

Please refer to FIG. 5A, which is a light-emitting diode lamp according to a fifth embodiment of the present invention. Schematic diagram of bubble structure decomposition. As shown in the figure, the embodiment is substantially the same as the structure disclosed in the above first and second figures, except that on the other side of the base 41, there is an inner hollow hollow cylinder 48, the inside of the cylinder 48. The second electrode terminal 49 is disposed on the bottom of the cylinder 48, and the outer surface has a screwing portion 40. The two electrode terminals 49 are electrically connected to the two power wires 45 of the base 41. In addition, a thread surface 161 is disposed on the inner wall of the through hole 16 of the heat dissipation housing 1 to provide screwing of the screw portion 40 of the cylinder 48.

Please refer to the fifth figure B, the schematic diagram of the combination of the lamp cover, the lamp chip and the heat dissipation housing of the fifth figure A. As shown in the figure: after the metal lamp cap 2, the driving circuit board 3 and the heat dissipating casing 1 are assembled, the cylinder 48 of the base 41 is aligned with the through hole 16 of the heat dissipating casing 1 and penetrates through the cylinder 48. The screwing portion 40 is screwed to the threaded surface 161 of the through hole 16 , and the second electrode terminal 49 is brought into contact with the two conductive ends 34 of the driving circuit board 3 , and then the lamp cover 6 is screwed to the heat dissipation housing 1 . The opening 12 is on. After the external power is input, the metal lamp cap 2 is transmitted to the two power input lines 31, 31', and the light-emitting element 43 is driven to be illuminated by the driving circuit board 3.

The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

1‧‧‧ Thermal housing

11‧‧‧ Heat sink fins

12‧‧‧ openings

13‧‧‧ group interface

14‧‧‧Baffle

141‧‧‧ Positioning block

15‧‧‧Threading Department

16‧‧‧through hole

161‧‧‧ thread surface

17‧‧‧ accommodating space

18‧‧‧ slotted

181‧‧‧ entrance

182‧‧ ‧ slide

19‧‧‧ gap

10‧‧‧Compressing agencies

101‧‧‧Cylinder

102‧‧‧ Spring

103‧‧‧ Pressure film

1031‧‧‧Two wings

2‧‧‧Metal lamp cap

21‧‧‧ screw joint

22‧‧‧ lamp holder

3‧‧‧Drive circuit board

31, 31'‧‧‧Power input line

32‧‧‧Two power output lines

33‧‧‧Connector

4‧‧‧Lighting tablets

41‧‧‧Base

42‧‧‧ boards

421‧‧‧ welding surface

43‧‧‧Lighting elements

44‧‧‧Perforation

45‧‧‧Power wire

46‧‧‧Connector

47‧‧‧ positioning port

48‧‧‧Cylinder

49‧‧‧electrode terminal

40‧‧‧ screw joint

5‧‧‧shims

6‧‧‧shade

61‧‧‧ joints

62‧‧‧ thread surface

63‧‧‧Carmen

FIG. 1 is a schematic exploded view of a light-emitting diode bulb according to a first embodiment of the present invention.

Figure B is a side cross-sectional view of the first Figure A.

FIG. 2 is a schematic exploded view showing the structure of the light-emitting diode bulb of the second embodiment of the present invention.

The second figure B~D is a schematic diagram of the combined action of the lamp cover and the heat dissipation housing of the second figure A.

FIG. 3 is a schematic exploded view showing the structure of the light-emitting diode bulb of the third embodiment of the present invention.

The third figure B~E is a schematic diagram of the combined action of the lamp cover, the lamp chip and the heat dissipation shell of the third figure A.

FIG. 4 is a schematic exploded view showing the structure of the light-emitting diode bulb of the fourth embodiment of the present invention.

The fourth figure B~F, the fourth figure A is a schematic diagram of the combination of the lamp cover, the lamp chip and the heat dissipation housing.

FIG. 5 is a schematic exploded view of a light-emitting diode bulb according to a fifth embodiment of the present invention.

FIG. 5B is a schematic view showing the combined operation of the lamp cover, the lamp chip and the heat dissipation case of FIG.

1‧‧‧ Thermal housing

11‧‧‧ Heat sink fins

12‧‧‧ openings

14‧‧‧Baffle

15‧‧‧Threading Department

16‧‧‧through hole

2‧‧‧Metal lamp cap

21‧‧‧ screw joint

3‧‧‧Drive circuit board

31, 31'‧‧‧Power input line

32‧‧‧Two power output lines

33‧‧‧Connector

4‧‧‧Lighting tablets

41‧‧‧Base

42‧‧‧ boards

421‧‧‧ welding surface

43‧‧‧Lighting elements

44‧‧‧Perforation

45‧‧‧Power wire

46‧‧‧Connector

5‧‧‧shims

6‧‧‧shade

61‧‧‧ joints

62‧‧‧ thread surface

Claims (20)

A light-emitting diode lamp structure capable of replacing a lamp core, comprising: a heat-dissipating housing having an opening at one end and a set of interfaces at the other end, the opening having a partition and a threaded portion on the inner wall The partition has a through hole therein; and an accommodating space is disposed inside the heat dissipating housing, the accommodating space is in communication with the through hole and the set of interfaces; and a metal lamp cap is disposed on the set of interfaces; The device has a screwing portion and a lamp cap insulated from the screwing portion; a driving circuit board is disposed in the accommodating space, and has two power input lines and two power output lines, one of The power input line is electrically connected to the screwing portion, the other power input line is electrically connected to the lamp cap, and the other two power output lines are connected with a connector; the lamp chip has a base, and the base is The circuit board has a circuit board electrically insulated from the base, the circuit board is electrically connected to the at least one light-emitting component, the circuit board has two soldering surfaces, and the two soldering surfaces are electrically connected with two power wires; The opening has a connection Portion having a threaded surface of the joint portion of the upper surface, the threaded surface engaged with the threaded portion based. The light-emitting diode lamp structure of the replaceable lamp core according to the first aspect of the invention, wherein the heat-dissipating casing is formed in a cup shape made of a metal material, and the heat-dissipating casing has a plurality of heat-dissipating fins on an outer surface thereof, the heat dissipation The fins are annular. The light-emitting diode bulb structure of the replaceable lamp core according to claim 1, wherein the base is made of aluminum, and the base and the circuit board are provided with two power wires. Perforation, the two power wires are connected to a connector, and the connector and the two power output lines of the driving circuit board The connected connector is plugged to drive the light-emitting element to light, and the light-emitting element is a light-emitting diode. The light-emitting diode bulb structure of the replaceable lamp core according to claim 1, wherein the lamp cover and the lamp chip assembly are further provided with a gasket. The light-emitting diode lamp structure of the replaceable lamp core according to claim 1, wherein the lamp cover is made of a transparent plastic material. A light-emitting diode lamp structure capable of replacing a lamp core, comprising: a heat-dissipating housing having an opening at one end and a set of interfaces at the other end, the opening having a partition and the inner wall having a plurality of slots The partition has a through hole therein; and an accommodating space is disposed inside the heat dissipating housing, the accommodating space is in communication with the through hole and the set of interfaces; and a metal lamp cap is disposed on the set of interfaces; The utility model has a screwing portion and a lamp cap insulated from the screwing portion; a driving circuit board is disposed in the accommodating space, and has two power input lines and two power output lines thereon, the electric power The input line is electrically connected to the screwing portion, the other power input line is electrically connected to the lamp cap, and the two power output lines are connected with a connector; the lamp chip has a base and a side of the base The circuit board has a circuit board electrically insulated from the susceptor, the circuit board is electrically connected to the at least one illuminating component, the circuit board has two soldering surfaces, the two soldering surfaces are electrically connected to the two power wires; On the opening, there is a joint thereon , Having a plurality of engagement to the engaging portion of the insert groove tenons. The light-emitting diode bulb structure of the replaceable lamp core according to claim 6 , wherein the heat dissipation shell is made of a metal material, the heat dissipation The outer surface of the casing has a plurality of fins, the fins are annular, and the cavities of the heat dissipating casing are L-shaped, and have an inlet and a slide. The light-emitting diode lamp structure of the replaceable lamp core according to claim 6, wherein the base is made of aluminum, and the base and the circuit board are provided with two power wires. The two power wires are connected to a connector, and the connector is connected to a connector connected to the two power output lines of the driving circuit board to drive the light emitting device to illuminate. The light emitting device is a light emitting diode. The light-emitting diode bulb structure of the replaceable lamp core according to claim 6, wherein the lamp cover and the lamp chip assembly are further provided with a gasket. The light-emitting diode bulb structure of the replaceable lamp core according to claim 6, wherein the lamp cover is made of a transparent plastic material. The light-emitting diode bulb structure of the replaceable lamp core according to claim 6, wherein the spacer further has a plurality of positioning blocks, and the positioning block has a gap between the inner wall of the opening; The substrate further has a plurality of positioning ports corresponding to the positioning blocks. A light-emitting diode bulb structure capable of replacing a lamp core, comprising: a heat-dissipating housing having an opening at one end and a set of interfaces at the other end, the opening having a partition and a plurality of slots, the partition The device has a through hole and a plurality of pressing mechanisms, and the pressing mechanism has a gap between the inner wall of the opening; and a receiving space inside the heat dissipating housing, the receiving space is connected to the through hole and the set of interfaces a metal lamp cap is disposed on the set of interfaces, and has a screwing portion and a lamp cap insulated from the screwing portion; a driving circuit board is disposed in the receiving space, With two power An input line and two power output lines, wherein one of the power input lines is electrically connected to the screwing portion, the other power input line is electrically connected to the lamp cap, and the other two power output lines are connected with a connector; The pedestal has a pedestal having a circuit board insulated from the pedestal on one side of the pedestal. The circuit board is electrically connected to the at least one illuminating element. The circuit board has two soldering surfaces, and the two soldering surfaces are electrically connected. And a plurality of power wires; and a plurality of positioning ports on the circumference of the base; a lamp cover is disposed on the opening, and has a joint portion thereon, the joint portion has a plurality of engaging holes in the groove Latch. The light-emitting diode bulb structure of the replaceable lamp core according to claim 12, wherein the heat-dissipating casing is formed in a cup shape made of a metal material, and the heat-dissipating casing has a plurality of heat-dissipating fins on an outer surface thereof, and the heat-dissipating fin The fin is annular; the recess of the heat dissipating housing has an L shape and has an inlet and a slide. The light-emitting diode bulb structure of the replaceable lamp core according to claim 12, wherein the pressing mechanism has a cylinder on the partition, and the cylinder is pivotally coupled with a spring and a pressure. The bracts have a square shape and the wings are slightly curved. The light-emitting diode bulb structure of the replaceable lamp core according to claim 12, wherein the base is made of aluminum, and the base and the circuit board are provided with two power wires. The two power wires are connected to a connector, and the connector is connected to a connector connected to the two power output lines of the driving circuit board to drive the light emitting device to illuminate. The light emitting device is a light emitting diode. The light-emitting diode bulb structure of the replaceable lamp core according to claim 12, wherein the lamp cover is made of a transparent plastic material. A light-emitting diode bulb structure capable of replacing a lamp core, comprising: a heat dissipating housing having an opening at one end and a plurality of interfaces at the other end, the opening having a partition and a threaded portion, the partition having a through hole and an inner wall of the through hole having a threaded surface; In addition, an accommodating space is disposed inside the heat dissipating housing, and the accommodating space is in communication with the through hole and the set of interfaces; a metal lamp cap is disposed on the set of interfaces, and has a screwing portion and a a lamp base that is insulated from the screw portion; a driving circuit board is disposed in the accommodating space, and has two power input lines and two conductive ends thereon, and the power input line and the metal lamp cap are screwed The electrical connection is electrically connected, and the other power input line is electrically connected to the lamp cap; the lamp chip has a base, and one side of the base has a circuit board insulated from the base, and the circuit board is electrically Connecting at least one light-emitting component, the circuit board has two soldering surfaces, the two soldering surfaces are electrically connected with two power wires; and the other side of the base has a hollow cylinder, and the bottom of the cylinder has a a two-electrode terminal that is connected to the two conductive ends, and The outer surface of the cylinder has a screwing portion that is screwed to the threaded surface of the through hole; and the two electrode terminals are electrically connected to the two power wires of the base; a lamp cover is disposed on the opening, and has An engaging portion having a threaded surface on a surface thereof, the threaded surface being engaged with the threaded portion. The light-emitting diode lamp structure of the replaceable lamp core according to claim 17, wherein the heat-dissipating casing is formed in a cup shape made of a metal material, and the outer surface of the heat-dissipating casing has a plurality of heat-dissipating fins, and the heat-dissipating fin The fins are annular. The light-emitting diode bulb structure of the replaceable lamp core according to claim 17, wherein the base is made of aluminum, and the base and the circuit board are provided with two power wires. The two power wires are connected to a connector, and the connector is connected to a connector connected to the two power output lines of the driving circuit board to drive the light emitting device to illuminate. It is a light-emitting diode. The light-emitting diode bulb structure of the replaceable lamp core according to claim 17, wherein the lamp cover is made of a transparent plastic material.