WO2006058481A1

WO2006058481A1 - A led lamp and the lamp bracket thereof and another two led lamps

Info

Publication number: WO2006058481A1
Application number: PCT/CN2005/001901
Authority: WO
Inventors: Simon Mo Chan Ho
Original assignee: Simon Mo Chan Ho
Priority date: 2004-12-02
Filing date: 2005-11-10
Publication date: 2006-06-08
Also published as: CN101076690A; CN2791468Y; CN100523591C

Abstract

A lamp bracket of an LED lamp is provided. The lamp bracket comprises a rear cover and a heat sink. An installing hole for installing an LED is provided in the rear cover. The heat sink comprises a first member and a second member, and the first member is located below the installing hole. The outer edges of the two members are connected so as to form a space for heat dissipation, and the rear cover is disposed within the space for heat dissipation. An LED lamp comprising an LED, a rear cover, a PCB circuit board and a heat sink is provided. Another two LED lamps respectively comprising two or more lighting components, a rear cover and a heat sink are provided. Because the second member of the heat sink is disposed outside the lamp bracket and the rear cover, and is made of metal material or comprises heat sinking holes or grooves, the heat sinking effect of the LED lamp is good, and the lives of the LED lamp and the lamp bracket thereof are long.

Description

Light-emitting diode lamp, lamp holder and two other light-emitting diode lamps

The invention relates to an LED lamp, a lamp holder and two other LED lamps.

Background technique

The existing LED lamp is generally composed of a light-emitting diode, a concentrating cover, an electronic circuit board, a power supply part, and a rear cover. The rear cover is a reflector, and the light reflection of the light-emitting diode is concentrated upward. The concentrating cover is a single or one uniformly distributed convex lens, so that the concentrating cover becomes an integrated convex lens or a diffuse condensing concentrating cover, the electronic component light emitting diode illuminating tube is mounted on the electronic circuit board, the light emitting diode illuminating tube light source and the concentrating cover The upper convex lens has a one-to-one correspondence structure, and the rear cover is fixedly connected with the concentrating cover and the electronic circuit board. The light-emitting diode lamp of the above structure has poor heat dissipation effect, thus affecting its service life.

Summary of the invention

The purpose of the invention is to solve the heat dissipation problem of the above LED lamp, and to provide an LED lamp, a lamp holder and two other LED lamps with good heat dissipation effect and long service life.

The object of the present invention is to provide a light fixture for a light-emitting diode lamp, comprising a rear cover and a heat sink, the rear cover having a mounting hole for mounting a light-emitting diode, the heat sink comprising the first component And the second component, after the first component is placed in the mounting hole at the rear of the rear cover, the second component is connected to the outer edge of the first component, the second component and the first component form a heat dissipation space, and the rear cover is placed in the heat dissipation Within the space.

A PCB circuit board is also included. The PCB circuit board is disposed between the rear cover mounting hole and the first component, and the first component is connected to the PCB circuit board.

The heat sink further includes a third component coupled between the rear cover and the second component.

The second component and the first component connection further comprise a support, and the first component is positioned on the support. The heat sink is provided with a heat dissipation hole or a groove.

Also included is a lens that is secured to the front opening of the rear cover.

The lens includes a central convex lens and a surrounding total reflection mirror.

The lens is integrally formed with the rear cover.

Also included is a power converter that is fixedly coupled to the PCB circuit board through the first component while the power converter is secured under the first component.

The heat sink further includes a fourth component, the fourth component being connected to the outer edge of the first component, the fourth component and the first component forming a receiving slot, and the power converter is positioned in the receiving slot.

Further, an LED lamp comprising a light emitting diode, a back cover, a PCB circuit board and a heat sink is provided The rear cover has a mounting hole at the rear, the light emitting diode is disposed at the hole, and the positive and negative electrodes are connected to the PCB circuit board, the heat sink includes a first component and a second component, and the first component is connected to the PCB circuit board, The second component is connected to the outer edge of the first component, the second component and the first component form a heat dissipation space, and the rear cover is disposed in the heat dissipation space.

Another LED lamp includes a heat sink, a power converter, two or more light emitting components, the heat sink includes a first component and a second component, and the second component is connected to an outer edge of the first component, The second component and the first component form a heat dissipation space, and two or more light emitting components are arranged in the heat dissipation space; each of the light emitting components includes at least one light emitting diode, a rear cover, a first heat dissipation component, and a second a heat dissipating component is mounted on the rear of the rear cover, and the LED is disposed at the hole. After the first heat dissipating component is disposed in the mounting hole at the rear of the rear cover, the LED is fixed on the first heat dissipating component, and the plurality of LEDs are The positive and negative poles are connected in series or in parallel to the output end of the power converter, the second heat dissipating component is connected to the outer edge of the first heat dissipating component, the second heat dissipating component and the first heat dissipating component form an inner heat dissipating space, and the rear cover is placed The inner heat dissipation space.

Another light-emitting diode lamp, including a heat sink, further includes a power converter, two or more light-emitting components, the heat sink including a first component, a second component, and a third component, each of the light-emitting components including At least one light emitting diode and a rear cover, the rear cover has a mounting hole at the rear, the light emitting diode is disposed at the hole, and the positive and negative poles of the plurality of light emitting diodes are connected in series or in parallel to the output end of the power converter, the first component, the first component The two components form a heat dissipation space, and the light emitting components are arranged in the heat dissipation space, and the outer edge of the rear cover of each light emitting component and the outer edge of the second component are connected by the third component.

The beneficial effects of using the above scheme:

1. Since the heat sink is disposed outside the rear cover of the LED lamp holder and the LED lamp, the first component and the second component form a heat dissipation space, and the first component and the second component are made of a heat dissipating metal material or other heat dissipation material such as It is made of ceramics, glass, etc. or also contains heat dissipation holes or grooves, so that the heat dissipation effect of the LED lamps is good, thereby increasing the service life of the LED lamp holders and the LED lamps.

2. Further, a third component is connected between the outer cover and the second component, and the third component is made of a heat dissipating metal material or other heat dissipating material such as ceramic, glass, or the like, or further includes a heat dissipation hole, so that the light emitting diode lamp The heat dissipation effect is better, and the LED lamp holder and the LED lamp have a longer service life. 3. The LED lamp holder and the lamp also include a power converter, which can directly use the AC/DC power supply, which greatly increases the practicality of the LED lamp holder and the LED lamp.

4. A fourth component having a heat sink external to the power converter, the fourth component being made of a heat dissipating metal material or other heat dissipating material such as ceramic, glass or a heat dissipation hole, the fourth component and the power converter The heat dissipation increases the life of the power converter, thereby increasing the service life of the LED lamp holder and the LED lamp.

5. The fourth component, the second component and the support member can be integrally formed, which is convenient for processing, and is also easy to be integrated with the LED lamp holder and the LED lamp.

DRAWINGS

The invention will now be described in further detail by means of specific embodiments and with reference to the accompanying drawings.

Fig. 1 is a plan view of the first embodiment.

Fig. 2 is a front view of the first embodiment.

Fig. 3 is a front view of the second embodiment.

Figure 4 is an exploded view of the second embodiment.

Figure 5a is a first structural schematic view of the first component and the second component when mated.

Figure 5b is a second structural schematic view of the first component and the second component when mated.

Figure 5c is a third structural schematic view of the first component and the second component when mated.

Fig. 6a is a first structural diagram of the light emitting diode fixed on the PCB circuit board.

Fig. 6b is a second structural diagram of the light emitting diode fixed on the PCB circuit board.

Fig. 6c is a third structural diagram of the light emitting diode fixed on the PCB circuit board.

Figure 7 is a plan view of a first structural schematic view of a multi-light emitting assembly.

Figure 8 is a front view of Figure 7.

Fig. 9 is a front elevational view showing a second structural view of the multi-light-emitting assembly.

Fig. 10 is a front elevational view showing a third structural view of the multi-light-emitting unit.

Figure 11 is a plan view of Figure 10.

Figure 12a is a schematic view showing the structure of a lens, a light emitting diode and a rear cover.

Fig. 12b is another schematic structural view of the lens, the light emitting diode and the rear cover.

detailed description

Embodiment 1 As shown in FIGS. 1 and 2, an LED lamp holder includes a lens 2, a rear cover 3, a PCB circuit board 7 and a heat sink 1, and the heat sink 1 includes a first component 11 and a second component 12. The lens 2 is fixed at the front opening of the rear cover 3, and the rear cover 3 has a mounting hole at the rear, and the mounting hole is used for arranging the light-emitting diode 5, and the rear part of the hole is placed The PCB board 7 is disposed, the first component 11 of the heat sink 1 is connected to the PCB circuit board 7, the rear part of the second component 12 is connected to the outer edge of the first component 11, and the second component 12 and the first component 11 are surrounded by heat dissipation. Space, the rear cover 3 is placed in the heat dissipation space.

Adding a light-emitting diode 5 to the light-emitting diode lamp holder, further obtaining a light-emitting diode lamp, the light-emitting diode 5 of the light-emitting diode lamp is placed at a mounting hole at the rear of the rear cover 3, and passes through the hole and the PCB circuit board 7 Connected.

In the above-mentioned LED lamp holder and LED lamp, the shape of the second component 12 and the first component 11 enclosing the space can be different according to the specific situation, for example, as shown in Figs. 5a, 5b, and 5c.

For ease of processing, the second component 12 and the first component 11 may be integrally formed.

The LED 5 can be fixed on the PCB circuit board 7 or the first component 11 in different manners as needed, as shown in FIG. 6a, and the LED 5 is fixed on the PCB board 7 by tin or glue; As shown in FIG. 6b, the LED 5 is fixed on the first component 11 with tin or glue, and the positive and negative electrodes of the LED are connected to the PCB circuit board 7; as shown in FIG. 6c, the film or the metal sheet 10 will be illuminated. The diode 5 is fixed on the first component 11, and the positive and negative electrodes of the LED are connected to the PCB circuit board 7.

The rear cover 3 can be made of a metal material, which can provide better reflection and heat dissipation effects; the back cover 3 can also be made of glue and coated with a reflective film to achieve a good concentrating effect. The light source at the center of the light-emitting diode 5 is refracted by the lens 2 and emitted by the parallel light; due to the reflection of the rear cover 3, the side light source of the light-emitting diode 5 is reflected and then directed toward the lens with parallel light, thereby making the light utilization more efficient, and Extend the life of LED lamps.

There are also some applications in which the light refracted by the lens 2 and the reflected light of the back cover 3 are not parallel light and are intentionally scattered, polymerized or multi-directionally scattered. When the concentrating requirements are less stringent, the lens 2 may be a lens that does not have the ability to condense or astigmatize. If it is not necessary to perform dustproof treatment on the rear cover 3, the lens 2 may not be used.

As shown in FIG. 12a, the lens 2 includes a central convex lens 21 and a surrounding total reflection mirror 22, and the upward direction light of the light-emitting diode 5 is refracted to a predetermined angle by the convex lens 21, and the light of the light-emitting diode 5 in the peripheral direction passes through the full-emission mirror 22 Launch to a predetermined angle. As shown in Fig. 12b, when the lens 2 includes the full emitting mirror 22, the lens 2 and the rear cover 3 can be integrally formed.

The second component 12 is made of a heat-dissipating metal material to dissipate heat from the light source and the heat dissipation space. In order to increase the heat dissipation effect, the second component 12 may be provided with a heat dissipation hole 16 or a groove to increase air flow and improve heat dissipation. .

In order to further enhance the effect of heat dissipation, the third component 13 of the heat sink 1 is added, which is connected between the outer wall of the rear cover 3 and the inner wall of the second component 12, and the third component 13 can also be connected to the rear cover 3. Upper wall And on the upper wall of the second component 12. The third component 13 is made of a heat-dissipating metal material to dissipate heat from the light source. In order to increase the heat dissipation effect, the third component 13 may be provided with a heat dissipation hole 16. For ease of processing, the second component 12 and the third component 13 may be integrally formed, and the rear cover 3 and the third component 13 may also be integrally formed. If the heat dissipation of the third component 13 is not required, the third component 13 can be made of a metal material, and functions to connect the second component 12 and the rear cover 3.

When the input power source does not match the application power of the LED lamp, the power converter 6 is added. The power converter 6 input is connected to the power source through the power plug 8, converts the AC signal into a DC signal, and can also convert the DC signal into Suitable for DC signal of LED lamp application; the output end of the power converter 6 is fixedly connected to the PCB circuit board 7 through the first component 11 or directly connected to the positive and negative electrodes of the LED, which can make the whole structure The PCB is omitted, the LED light of the PCB is omitted, the light fixture is structurally relatively simple with the LED light of the PCB, and the light stand is simple, but the connection is troublesome.

The power converter 6 is fixed under the first component 11.

Embodiment 2, as shown in FIG. 3, is different from Embodiment 1 in that the heat sink 1 is added with a fourth component 14, and the fourth component 14 is connected to the outer edge of the first component 11, the fourth component 14 and the An assembly 11 encloses a receiving slot in the reverse direction of the second component 12, and the power converter 6 is positioned in the receiving slot. The fourth component 14 is made of a heat dissipating metal material to increase the overall heat dissipating surface and dissipate heat to the power converter 6. To increase the heat dissipating effect, a heat dissipating hole 16 may be provided in the fourth component 14.

In order to increase the effect of heat dissipation, the inner wall profile of the fourth component 14 matches the shape of the power converter 6. In order to facilitate the processing and the overall assembly of the LED lamp holder and the LED lamp, the second component and the first component are connected with a support member 15, the fourth component 14, the second component 12 and the support member 15 are integrally formed, the first component Located on the support.

The shape of the top surface of the second component 12 need not be limited, and is generally mainly circular or elliptical.

Embodiment 3, as shown in FIG. 7 and FIG. 8 , is different from the first embodiment in that it comprises three light-emitting components 9 , and the three light-emitting components 9 are arranged in the second component 12 and the first component 11 . In the heat dissipation space, the power converter 6 is included; each of the light-emitting components 9 includes a light-emitting diode 5, a rear cover 3, a first heat-dissipating component 91, and a second heat-dissipating component 92. The rear cover 3 has a mounting hole at the rear, and the light-emitting diode 5 After the first heat dissipating component 91 is placed in the mounting hole at the rear of the rear cover 3, the LED 5 is fixed on the first heat dissipating component 91, and the positive and negative poles of the plurality of LEDs 5 are connected in parallel or in series to the power source. The second heat dissipating component 92 is connected to the outer edge of the first heat dissipating component 91, and the second heat dissipating component 92 and the first heat dissipating component 91 form an inner heat dissipating space, and the rear cover 3 is disposed in the inner heat dissipating space. in. One or more light emitting diodes 5 may be mounted in the rear cover 3 of each of the light emitting assemblies 9.

Embodiment 4, as shown in FIGS. 10 and 11, the difference from Embodiment 1 is that three light-emitting components are included, and the heat sink 1 adds a third component 13, and three light-emitting components are arranged in the second component. 12, in the heat dissipation space composed of the first component 11, the outer edge of the rear cover of each light-emitting component and the outer edge of the second component are connected by the third component 13; each of the light-emitting components 9 includes a light-emitting diode 5 and a rear cover 3, and a rear cover The rear part of the 3 is provided with a mounting hole, and the light emitting diode 5 is placed at the hole, and the positive and negative electrodes of the plurality of light emitting diodes 5 are connected in parallel or in series to the output end of the power converter 6.

Further, the third component 13 can also be provided with a heat dissipation hole to enhance the heat dissipation effect of the heat sink 1.

Each of the light-emitting components is disposed in a heat-dissipating space composed of the second component and the first component, and the heat-dissipating space is integrated, and the cost is low. At the same time, the structure of each of the light-emitting components has a respective heat-dissipating space, and the heat-dissipating space is circulated. Better, better heat dissipation, no local overheating.

As shown in Fig. 9, the rear cover surrounding each of the light-emitting components is provided with a connecting member on the third component, so that the third component can be formed into a small size and then connected by the connecting member, and the processing and practical operation are relatively simple.

Claims

Rights request

1. A light fixture for an LED lamp, comprising a rear cover (3) and a heat sink (1), the rear cover (3) having a mounting hole at a rear thereof, the mounting hole for mounting a light emitting diode (5), the feature Wherein: the heat sink (1) comprises a first component

(11) and the second component (12), after the first component (11) is placed in the rear mounting hole of the rear cover (3), the second component

(12) Connected to the outer edge of the first component (11), the second component (12) and the first component (11) constitute a heat dissipation space, and the rear cover (3) is placed in the heat dissipation space.

2. A lamp holder for an LED lamp according to claim 1, further comprising: a PCB circuit board (7), the PCB circuit board (7) being placed in the rear cover (3) mounting hole and the first component The first component (11) is connected to the PCB board (7).

3. A light fixture for an LED lamp according to claim 1, characterized in that the heat sink (1) further comprises a third component (13), the third component (13) being connected to the rear cover ( 3) Between the second component (12).

4. The LED light fixture of claim 1, wherein: the second component (12) and the first component (11) further comprise a support member (15), the first component (11) ) is positioned on the support (15).

5. A light-emitting diode lamp holder according to claim 1, wherein: the heat sink (1) is provided with a heat dissipation hole (16) or a groove.

6. A light-emitting diode lamp holder according to claim 1, further comprising a lens (2), a lens

(2) Secure at the front opening of the rear cover (3).

7. A light-emitting diode lamp holder according to claim 6, characterized in that the lens (2) comprises a central convex lens (21) and a surrounding total reflection mirror (22).

8. A light-emitting diode lamp holder according to claim 7, wherein: said lens (2) and a rear cover

(3) One-piece molding.

9. A light fixture for an LED lamp according to claim 1, further comprising a power converter (6), said power converter (6) passing through the first component (11) and the PCB circuit The board (7) is fixedly connected while the power converter (6) is fixed under the first component (11). '

10. A light fixture for an LED lamp according to claim 9, wherein: said heat sink (1) further comprises a fourth component (14), a fourth component (14) and a first component (11) The outer edge of the base member (14) and the first component (11) form a receiving slot, and the power converter (6) is located in the receiving slot.

11. A light-emitting diode lamp comprising a light-emitting diode (5), a rear cover (3), a PCB circuit board (7) and a heat sink (1), a rear mounting hole (3) having a mounting hole, and a light-emitting diode (5) ) placed at the hole, its positive and negative poles and PCB The circuit board (7) is connected, characterized in that: the heat sink (1) comprises a first component (11) and a second component (12), the first component (11) is connected to the PCB circuit board (7), the second The component (12) is connected to the outer edge of the first component (11), the second component (12) and the first component (11) constitute a heat dissipation space, and the rear cover (3) is placed in the heat dissipation space.

12. A light-emitting diode lamp according to claim 11, wherein: said heat sink (1) further comprises a third component (13), said third component (13) being connected to the rear cover (3) and Between the second component (12).

13. A light-emitting diode lamp according to claim 11, further comprising a power converter (6), said power converter (6) passing through the first component (11) and the PCB circuit board (7) ) Fixed connection while the power converter (6) is fixed under the first component (11).

14. A light-emitting diode lamp according to claim 13, characterized in that the heat sink (1) further comprises a fourth component (14), a fourth component (14) and a first component (11) The fourth component (14) and the first component (11) form a receiving slot, and the power converter (6) is positioned in the receiving slot.

15. Another LED lamp, comprising a heat sink (1), characterized by: further comprising a power converter (6), two or more light-emitting components, the heat sink (1) comprising a first component ( 11) and a second component (12), the second component (12) is connected to the outer edge of the first component (11), and the second component (12) and the first component (11) form a heat dissipation space, two or Two or more light emitting components are arranged in the heat dissipating space; each of the light emitting components includes at least one light emitting diode, a rear cover, a first heat dissipating component and a second heat dissipating component, and a rear mounting portion has a mounting hole, and the LED is disposed After the first heat dissipating component is placed in the mounting hole at the rear of the rear cover, the LED is fixed on the first heat dissipating component, and the positive and negative poles of the plurality of LEDs are connected in series or in parallel to the power converter (6). The second heat dissipating component is connected to the outer edge of the first heat dissipating component, and the second heat dissipating component and the first heat dissipating component form an inner heat dissipating space, and the rear cover is disposed in the inner heat dissipating space.

16. Another LED lamp, comprising a heat sink (1), characterized by: further comprising a power converter (6), two or more light-emitting components, the heat sink (1) comprising a first component ( 11), a second component (12) and a third component (13), each of the light-emitting components comprising at least one light-emitting diode and a rear cover, the rear cover is provided with a mounting hole at the rear, and the light-emitting diode is placed at the hole, The positive and negative poles of the LEDs are connected in series or in parallel to the output end of the power converter (6), and the first component (11) and the second component (12) form a heat dissipation space, and the light emitting components are arranged in the heat dissipation space. The outer edge of the rear cover of each of the light-emitting components and the outer edge of the second component (12) are connected by a third component (13).