CN101749665B - lamps - Google Patents

Abstract

The invention provides a lamp, which comprises a base, a plurality of clamping pieces, a circuit board and a plurality of light emitting diodes. The clamping pieces are arranged on the base body, and the distance between the clamping pieces can be adjusted. The circuit board is fixed on the seat body and is provided with a plurality of groups of electrodes. The light emitting diodes are arranged on the circuit board, and each light emitting diode is correspondingly connected with one of the electrodes.

Description

lamps

technical field

The present invention relates to a lamp, and in particular to a lamp with light emitting diodes.

Background technique

With the advancement of semiconductor technology, the luminous brightness and luminous efficiency of light-emitting diodes (LEDs) continue to increase. Because light-emitting diodes have the advantages of fast response, high reliability, low power consumption, small size, low pollution, low driving voltage, and no mercury, the application of light-emitting diodes has become more and more extensive, and many applications have appeared on the market. Indoor luminaires with LEDs as light sources.

Common LED lamps on the market are equipped with heat sinks, which make the lamps bulky and heavy, and the lamps can only be assembled in a mounting hole with a single aperture, which is inconvenient for assembly. When manufacturing light-emitting diode lamps, every time a brightness specification is designed, it is necessary to design a circuit board corresponding to the number of light-emitting diodes of this specification, which wastes design and material costs.

Contents of the invention

The invention provides a lamp with multiple buckling parts, wherein the distance between the buckling parts can be adjusted.

The present invention further provides a lamp with a plurality of light emitting diodes, wherein the number of light emitting diodes is less than the number of groups of electrodes on the circuit board.

The invention provides a lamp, which includes a base, a plurality of buckle parts, a circuit board and a plurality of light emitting diodes. The buckling parts are arranged on the base body, and the distance between the buckling parts can be adjusted. The circuit board is fixed on the base body and has multiple sets of electrodes. The light-emitting diodes are arranged on the circuit board, and each light-emitting diode is correspondingly connected to one group of electrodes among the plurality of groups of electrodes.

In an embodiment of the lamp, the base body is made of metal. In addition, the lamp can further include a heat-conducting material layer disposed between the circuit board and the base.

In an embodiment of the lamp, the base body has a bottom plate and two side plates vertically connected to the bottom plate, and each side plate has at least one slide slot, and the buckles are slidably disposed between the at least one slide slot.

In an embodiment of the lamp, the base body has a bottom plate and two side plates vertically connected to the bottom plate, each side plate has a plurality of positioning holes, and the buckles are locked in some of these positioning holes.

In an embodiment of the lamp, it further includes a diffusion plate, and the LEDs are located between the circuit board and the diffusion plate. Furthermore, the diffuser plate may have a plurality of lens structures.

In one embodiment of the lamp, it further includes two heat sinks. The seat body has a bottom plate and two side plates vertically connected to the bottom plate, and the radiator is arranged on the side plates.

In an embodiment of the lamp, it further includes a driver disposed on the base.

In an embodiment of the lamp, each buckle includes a first part, a second part and a torsion spring. The first part is arranged on the seat body, the second part is pivotally connected to the first part, and the torsion spring is arranged between the first part and the second part to drive the second part to rotate toward the circuit board.

In one embodiment of the luminaire, the number of light emitting diodes is less than the number of sets of electrodes.

The invention further provides a lamp, which includes a base, a circuit board and a plurality of light emitting diodes. The circuit board is fixed on the base and has multiple sets of electrodes. These light emitting diodes are arranged on the circuit board, and each light emitting diode is respectively connected to a group of electrodes in the plurality of groups of electrodes correspondingly, and the number of these light emitting diodes is less than the number of groups of these electrodes.

In an embodiment of the lamp, the base includes a base and a plurality of buckles, the circuit board is fixed on the base, and the plurality of buckles are arranged on the base. In addition, the seat body has, for example, a bottom plate and two side plates vertically connected to the bottom plate, and each side plate has at least one slide slot, and the buckles are slidably disposed between the slide slots. In addition, the seat body has, for example, a bottom plate and two side plates vertically connected to the bottom plate, and each side plate has a plurality of positioning holes, and the buckles are locked in some of these positioning holes. Furthermore, each buckle includes, for example, a first part, a second part and a torsion spring. The first part is arranged on the seat body, and the second part is pivotally connected to the first part. The torsion spring is arranged between the first part and the second part to drive the second part to rotate toward the circuit board.

In an embodiment of the lamp, the base is made of metal.

In an embodiment of the lamp, it further includes a thermally conductive material layer disposed between the circuit board and the base.

In an embodiment of the lamp, it further includes at least one radiator disposed on the base.

In an embodiment of the lamp, it further includes a driver disposed on the base.

In an embodiment of the lamp, a diffuser plate is further included, wherein the LEDs are located between the circuit board and the diffuser plate. Furthermore, the diffuser plate may have a plurality of lens structures.

To sum up, the lamp of the present invention has a plurality of buckling parts, and the distance between these buckling parts can be adjusted, so that the lamp can be installed in mounting holes of various sizes.

The lamp of the present invention has a plurality of light emitting diodes which are less than the number of electrode sets on the circuit board. This design can increase or decrease the number of light-emitting diodes on the same circuit board to produce lamps with different brightness, so as to save design and material costs.

In order to make the above and its features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is an exploded view of a lamp according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a circuit board of the lamp in Fig. 1;

Fig. 3 is the schematic diagram that the lamp of this embodiment is installed in the assembly hole;

4 and 5 are schematic diagrams of circuit boards of two other lamps.

Explanation of symbols in the figure

100: lamps

110: base

112: seat body

112a: Bottom plate

112b: side panel

112c: chute

112d: positioning hole

114: Fasteners

114a: Part I

114b: Part II

114c: torsion spring

120: circuit board

122: electrode

130: LED

140: thermally conductive material

150: Radiator

160: drive

170: Diffusion plate

172: Lens structure

174: Ring shell

200: ceiling

210: Assembly hole

D1: Diameter of the circuit board

D2: Diameter of mounting hole

Detailed ways

FIG. 1 is an exploded view of a lamp according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a circuit board of the lamp in FIG. 1 . Please refer to FIG. 1 and FIG. 2 , the lamp 100 of this embodiment includes a base 110 , a circuit board 120 and a plurality of LEDs 130 . The base 110 includes a seat body 112 and a plurality of buckling parts 114 , here two buckling parts 114 are taken as an example. The circuit board 120 is fixed on the base body 112 and has multiple sets of electrodes 122 . The light emitting diodes 130 are disposed on the circuit board 120 , and each light emitting diode 130 is respectively connected to a group of electrodes 122 in the plurality of groups of electrodes 122 . In this embodiment, the number of light emitting diodes 130 is less than the number of groups of electrodes 122 , that is, some of the electrodes 122 are not electrically connected to the light emitting diodes 130 . The buckle 114 is disposed on the seat body 112 . The seat body 112 has a bottom plate 112a and two side plates 112b vertically connected to the bottom plate 112a, and each side plate 112b has at least one slide slot 112c and a plurality of positioning holes 112d. The locking member 114 is slidably disposed between the sliding slots 112c of the two side plates 112b, and is locked in a part of the positioning hole 112d. Each locking member 114 includes a first portion 114a, a second portion 114b and a torsion spring 114c. The first part 114a is disposed on the seat body 112, and the second part 114b is pivotally connected to the first part 114a. The torsion spring 114c is disposed between the first part 114a and the second part 114b for driving the second part 114b to rotate toward the circuit board 120 .

In this embodiment, the base 110 is made of high thermal conductivity materials such as metal materials and ceramic materials. In addition to the function of fixing the lamp 100, the base 110 can also be used as a heat sink to help the circuit board 120 remove waste heat, and can be used according to the circuit board. The heat dissipation requirement of 120 adds radiator 150 again. As shown in FIG. 1 , the heat sink 150 is disposed on the base 110 in this embodiment. There is a thermally conductive material 140 between the circuit board 120 and the base 110 , such as thermal paste, which is used to enhance the heat conduction efficiency between the circuit board 120 and the base 110 and reduce the thermal contact resistance between the circuit board 120 and the base 110 , which can further enhance the heat dissipation effect of the base 110 .

In this embodiment, the driver 160 is disposed on the base 110 , and the position of the driver 160 can be disposed at a certain distance from the bottom plate 112 a of the base body 112 or the circuit board 120 to improve heat dissipation.

FIG. 3 is a schematic diagram of the installation of the lamp in this embodiment into the assembly hole. Referring to FIG. 3 , the diffuser plate 170 has a plurality of lens structures 172 , which can convert point light sources of LEDs (not shown) into surface light sources with uniform light intensity, so that the lamp 100 provides softer and uniform light. Therefore, even when the user directly looks at the lamp 100, he or she will not feel glare or glare, and the brightness of the light at each position is similar. In this embodiment, the diffuser plate 170 is fixed under the circuit board 120 by an annular shell 174 , which not only provides the function of scattering light, but also protects the circuit board 120 and the LEDs (not shown). In addition, the assembling manner of the diffuser plate 170 is not limited to that shown in FIG. 3 , and can also be assembled on the lamp 100 in other manners.

Please refer to FIG. 3 , when installing the lamp 100 , first fix the first part 114a of the buckle 114 to the positioning hole 112d corresponding to the diameter d2 of the assembling hole 210 . Next, turn the second portion 114 b of the locking member 114 toward the base body 112 so that the base 110 of the lamp 100 passes through the assembly hole 210 . Then, use the elastic force of the torsion spring 114c to make the second part 114b of the buckle 114 rotate toward the direction of the circuit board 120, so that the second part 114b of the buckle 114 and the bottom plate 112a can clamp the ceiling 200, and the lamp is completed. 100's of installations.

4 and 5 are schematic diagrams of circuit boards of two other lamps. Please refer to FIG. 2 , when the brightness of the lamp is 100% of the design specification, only some of the electrodes 122 on the circuit board 120 are equipped with light emitting diodes 130 . If it is necessary to manufacture another lamp with a brightness of 150%, it is not necessary to design a new circuit board 120, and it is only necessary to install part of the remaining electrodes 122 on the light-emitting diode 130, as shown in FIG. 4 . If a specification of 200% brightness is required, all the electrodes 122 can be mounted with light emitting diodes 130 to complete, as shown in FIG. 5 . Therefore, when manufacturing lamps with different brightness specifications, only the number of LEDs 130 needs to be changed, and the design of the circuit board 120 does not need to be changed, which can save design and material costs. In this embodiment, the light emitting diodes 130 are evenly arranged on the circuit board 120, so that the brightness distribution of the lamp can be more even. In addition, the shape of the circuit board 120 and the arrangement of the light emitting diodes 130 are not limited to those shown in FIG. 2 , FIG. 4 and FIG. 5 , and may be other shapes and arrangements.

To sum up, the lamp of the present invention has a buckle with an adjustable distance, which can be applied to mounting holes of various sizes, so that users do not need to worry about the problem that the lamp does not fit into the mounting hole, and can replace the lamp more easily.

In the lamp of the present invention, the number of light-emitting diodes is less than the number of electrode groups on the circuit board, that is, the circuit board has spare electrodes so that the number of light-emitting diodes can be increased or decreased, and lamps with different brightness specifications can be manufactured according to requirements. In this way, the design and material cost of the circuit board can be greatly saved.

In addition, when the base is made of high thermal conductivity materials such as metal and ceramic materials, in addition to the function of fixing the lamp, it can also be used as a heat sink to improve heat dissipation efficiency and save the use of heat sinks to reduce volume and weight.

Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and improvements without departing from the spirit and scope of the present invention. Therefore The scope of protection of the present invention should be defined by the appended claims.

Claims (7)

1. a light fixture is characterized in that, comprising:

One pedestal;

A plurality of fasteners are equipped on the said pedestal, and the distance between the said fastener can be adjusted;

One circuit board is fixed on the said pedestal, and has multi-group electrode; And

A plurality of light emitting diodes; Be disposed on the said circuit board; Wherein each said light emitting diode respectively with said multi-group electrode in one group of electrode pair should be connected, said pedestal has a base plate and vertical two side plates that are connected said base plate, each said side plate has at least one chute and a plurality of locating hole; Said fastener is slidedly arranged between said at least one chute, and said fastener is locked in the said locating hole of part.

2. light fixture as claimed in claim 1 is characterized in that, the material of said pedestal is a metal.

3. light fixture as claimed in claim 1 is characterized in that, more comprises a diffuser plate, and wherein said light emitting diode is between said circuit board and said diffuser plate.

4. light fixture as claimed in claim 3 is characterized in that said diffuser plate has a plurality of lens arrangements.

5. light fixture as claimed in claim 1 is characterized in that, more comprises second radiator, and wherein said heat sink arrangements is in said side plate.

6. light fixture as claimed in claim 1 is characterized in that, each said fastener comprises:

One first partly, is equipped on the said pedestal;

One second portion is articulated in said first partly; And

One torque spring is equipped between said first part and the said second portion, in order to drive said second portion towards said circuit board direction rotation.

7. light fixture as claimed in claim 1 is characterized in that, the quantity of said light emitting diode is less than the group number of said electrode.

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