TWI577926B - Lamp - Google Patents

Description

Lamp

The invention relates to a lighting device, in particular to a lighting diode lighting fixture.

In order to protect the illuminating device of the luminaire, such as the illuminating diode, a transparent lamp cover is arranged on the light source module. The lampshade and the socket are usually fixed by screws. However, this method of fixing requires other tools to be inconvenient to assemble and disassemble.

In view of this, it is necessary to provide a luminaire that is easy to assemble and disassemble.

A lamp includes a heat sink and a lamp cover, and the lamp cover is connected to the heat sink and jointly forms a receiving space, wherein one of the lamp cover and the heat sink comprises a fixing portion, and the lamp cover and the heat sink are respectively provided with a buckle portion, the card A card slot that is engaged with the fixing portion is formed on the buckle portion.

The lamp is fastened to the buckle portion of the heat sink through the fixing portion of the lamp cover, and is convenient to disassemble and assemble without using other auxiliary tools.

10‧‧‧ lamp holder

11‧‧‧Insulation

12‧‧‧Electrical connector

13‧‧‧ radiator

14‧‧‧Ontology

141‧‧‧ first surface

142‧‧‧ second surface

143‧‧‧ outer perimeter

15‧‧‧ Heat sink fins

151‧‧‧Knucking Department

152‧‧‧Flexible arm

153‧‧‧stop arm

154‧‧‧ Guide surface

155‧‧‧ stop surface

156‧‧‧ card slot

157‧‧‧Installation slot

16‧‧‧Lighting diode module

17‧‧‧shade

171‧‧‧ Covering Department

172‧‧‧ Fixed Department

173‧‧‧Into the glossy surface

174‧‧‧Glossy

175‧‧‧ accommodating space

FIG. 1 is a schematic perspective view of a lamp assembly according to an embodiment of the invention.

2 is a perspective exploded view of the lamp of FIG. 1.

3 is a partial cross-sectional view of the luminaire of FIG. 1.

Referring to FIG. 1 to FIG. 3 , a lamp provided by an embodiment of the present invention includes a lamp holder 10 , a heat sink 13 , a light emitting diode module 16 , and a lamp cover 17 .

The socket 10 includes an insulating portion 11 and an electrical connector 12. The electrical connector 12 is located below the insulating portion 11 and is fixedly coupled to the insulating portion 11, and the electrical connector 12 is for electrically connecting to an external power source to provide electrical energy required for operation of the luminaire.

The heat sink 13 is located above the insulating portion 11 of the socket 10 and is fixedly connected to the insulating portion 11. The heat sink 13 includes a body 14 and a plurality of heat dissipation fins 15 . The body 14 has a hollow cylindrical shape as a whole, and the body 14 includes a first surface 141, a second surface 142 and an outer circumferential surface 143 which are oppositely disposed. The first surface 141 is away from the side of the socket 10, the second surface 142 is adjacent to the side of the socket 10, and the outer circumferential surface 143 of the body 14 is connected between the first surface 141 and the second surface 142. The plurality of heat dissipation fins 15 are disposed around the body 14. In the present embodiment, the heat dissipation fins 15 are protruded radially outward from the outer circumferential surface 143 of the body 14.

The top end of the heat sink 13 is provided with a plurality of latching portions 151 spaced apart from each other, and a latching groove 156 is formed in each of the latching portions 151. In the present embodiment, the hook portion 151 is formed by projecting from the distal end of the heat dissipation fin 15 . The latching portion 151 includes a resilient arm 152 and a stop arm 153. The resilient arm 152 is formed by a protruding end of the heat dissipating fin 15 and the stopping arm 153 is formed by a free end of the resilient arm 152 protruding radially inward. The stop arm 153 includes a guiding surface 154 and a stop surface 155. The guiding surface 154 is located inside the stop arm 153, and the guiding surface 154 is formed by the tip end of the stopping arm 153 being bent radially inward and downward. The stop surface 155 is located at the bottom end of the stop arm 153, and the stop surface 155 faces the first surface 141 of the body 14. The stop surface 155 is spaced apart from the first surface 141 of the body 14 to form a latching groove 156, that is, the stop arm 153 The first surface 141 of the body 14 is spaced apart to form a latching groove 156. The latching groove 156 of the latching portion 151 of the plurality of heat radiating fins 15 horizontally communicates in the circumferential direction to form an annular mounting groove 157.

The lampshade 17 is made of a transparent material such as glass, plastic, or the like. Lamp cover 17 is located in the radiator A receiving space 175 is formed on top of 13 and connected to the heat sink 13. In the present embodiment, the lamp cover 17 and the first surface 141 of the heat sink 13 together form a receiving space 175, that is, the first surface 141 of the heat sink 13 is adjacent to the lamp cover 17, and the second surface 142 of the heat sink 13 is away from the lamp cover 17.

The shade 17 includes a fixing portion 172 and a cover portion 171. The cover portion 171 has a hemispherical shell shape, and the cover portion 171 has a light incident surface 173 and a light exit surface 174 which are opposed to each other. The light incident surface 173 is located inside the cover portion 171 and faces the heat sink 13. The light exit surface 174 is located outside the cover portion 171 and is in direct contact with the outside. The fixing portion 172 has a circular shape, and the fixing portion 172 is formed to protrude radially outward from the outer edge of the cover portion 171, that is, the fixing portion 172 is formed to extend horizontally outward from the bottom end of the cover portion 171. The shape and size of the fixing portion 172 correspond to the shape and size of the mounting groove 157, respectively.

The LED module 16 is located above the first surface 141 of the heat sink 13 and is received in the receiving space 175. The light-emitting diode module 16 faces the light-incident surface 173 of the lamp cover 17 , and the light emitted by the light-emitting diode module 16 enters the lamp cover 17 via the light-incident surface 173 of the lamp cover 17 , and finally emits the lamp cover via the light-emitting surface 174 of the lamp cover 17 . 17.

When the lamp cover 17 is mounted on the heat sink 13, the fixing portion 172 of the lamp cover 17 abuts against the guiding surface 154 of the stop arm 153 of the heat sink 13, and the lamp cover 17 is pressed down, and the fixing portion 172 of the lamp cover 17 dissipates heat. The elastic arm 152 of the latching portion 151 of the device 13 is flared outwardly, and the fixing portion 172 of the lamp cover 17 moves downward along the guiding surface 154 of the stopping arm 153 until it enters the card slot 156, and the latching portion 151 is no longer subjected to an external force. And the original position is restored. At this time, the stop arm 153 of the buckle portion 151 is pressed against the fixing portion 172 of the lamp cover 17, and the stop surface 155 of the elastic arm 152 and the fixing portion 172 are in contact with each other, and the fixing portion 172 of the lamp cover 17 is Fastened in the slot 156 of the heat sink 13 and attached to the first surface 141 of the heat sink 13, that is, the plurality of latching portions 151 of the heat sink 13 surround the lamp cover 17 and press the fixing portion 172 of the lamp cover 17 At the top end of the heat sink 13, the lamp cover 17 is tightly connected to the heat sink 13. The lamp is fastened to the buckle portion 151 of the heat sink 13 through the fixing portion 172 of the lamp cover 17, and is convenient to assemble and disassemble without other auxiliary tools.

Further, those skilled in the art can make other changes in the spirit of the present invention. For example, the heat sink 13 is provided with the fixing portion 172, and the lamp cover 17 is provided with the locking portion 151 as long as it does not deviate from the technical effects of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

14‧‧‧Ontology

151‧‧‧Knucking Department

152‧‧‧Flexible arm

153‧‧‧stop arm

154‧‧‧ Guide surface

155‧‧‧ stop surface

156‧‧‧ card slot

171‧‧‧ Covering Department

172‧‧‧ Fixed Department

173‧‧‧Into the glossy surface

174‧‧‧Glossy

175‧‧‧ accommodating space

Claims (6)

A lamp includes a heat sink and a lamp cover, and the lamp cover is connected to the heat sink and jointly forms a receiving space, wherein the lamp cover and the heat sink comprise one of the fixing portions, and the lamp cover and the heat sink are respectively provided with a fastening portion. The latching portion is formed with a card slot that is engaged with the fixing portion. The heat sink includes a body and a plurality of heat dissipating fins. Each of the latching portions includes a resilient arm and a stop arm, and the elastic arm is formed by the top end of the heat sink. The protruding arm is formed by a radially inwardly protruding end of the elastic arm, and the stopping arm is spaced apart from the top end of the body to form the slot. The luminaire of claim 1, wherein the fixing portion is formed on the lamp cover, the number of the fastening portions is plural, the plurality of fastening portions are spaced apart from each other and surround the lamp cover, and the card slot of the plurality of fastening portions The circumferential directions communicate with each other to form a mounting groove. The luminaire of claim 1, wherein the plurality of heat dissipation fins are disposed around the body, and the buckle portion is protruded from a top end of the heat dissipation fin. The luminaire of claim 3, wherein the body of the heat sink comprises a first surface and a second surface disposed opposite to each other, the first surface is adjacent to the lamp cover, the second surface is away from the lamp cover, and the outer peripheral surface of the body is connected to the first surface Between the second surface and the second surface, the heat dissipation fins are protruded radially outward from the outer peripheral surface of the body. The luminaire of claim 3, wherein the stop arm comprises a guiding surface and a stopping surface, the guiding surface is located inside the stopping arm, and the guiding surface is radially inward by the top end of the stopping arm It is bent downward, the stop surface is located at the bottom end of the stop arm, the stop surface faces the top end of the body, and the stop surface is spaced apart from the top end of the body to form the card slot. The luminaire of claim 1, further comprising a light emitting diode module, wherein the light emitting diode module is located above the heat sink and is received in the accommodating space.