WO2013003996A1

WO2013003996A1 - Led spot lamp

Info

Publication number: WO2013003996A1
Application number: PCT/CN2011/076816
Authority: WO
Inventors: 李光辉
Original assignee: 厦门星际电器有限公司
Priority date: 2011-07-04
Filing date: 2011-07-04
Publication date: 2013-01-10

Abstract

An LED spot lamp consists of a lamp head, a radiator, a driving circuit, an LED lamp panel and a lens. The radiator comprises a peripheral radiating cover, a central setting seat, heat-conducting pieces and a baseboard. The bottom of the peripheral radiating cover is connected to the circumference of the baseboard. The bottom of the central setting seat is connected to the inner circle of the baseboard. The heat-conducting pieces are connected to the inner wall of the peripheral radiating cover and the outer wall of the central setting seat. The LED lamp panel and the lens are provided on the baseboard inside the central setting seat. Furthermore, the lens is fixed on the inner side of the baseboard while the lamp head is fixed on the outer side of the baseboard. The driving circuit built in the lamp head is electrically connected to the LED lamp panel by through holes in the baseboard. The spot lamp has better radiating effect and prolonged service life.

Description

LED spotlight

技术领域Technical field

The invention relates to the technical field of LED spotlights, and particularly relates to a heat dissipation structure of an LED spotlight.

背景技术Background technique

In the prior art, the structure of an LED spotlight is substantially as shown in FIG. 1 , and is composed of a lamp cap 10 , a heat sink 20 , a lamp board (not shown) and a bulb 30 . The heat sink 20 has heat dissipating fins and heat dissipation. The body 20 is fixed to the base 10, and the bulb 30 is mounted in the heat sink 20.

Although the structure can utilize the heat dissipating fins to improve the overall heat dissipation effect of the product, the structure is complicated and the processing is inconvenient, and on the one hand, the dust easily enters the heat dissipating body 20 from the heat dissipating fins, contaminating the lamp board and the bulb. 30, affecting the normal use of the product, on the other hand, it is easy to accumulate dust between the heat dissipating fins, which in turn affects heat dissipation and has a short service life.

Therefore, the structure of the existing LED spotlight has many shortcomings and it needs to be improved.

发明内容Summary of the invention

The object of the present invention is to provide an LED spotlight, which has better heat dissipation effect and long service life.

In order to achieve the above object, the technical solution of the present invention is as follows:

An LED spotlight is composed of a lamp head, a heat sink, a driving circuit, an LED lamp board and a lens. The heat sink has a peripheral heat sink cover, a center mount, a heat transfer sheet and a bottom plate, and a bottom of the outer heat sink cover is connected to the outer edge of the bottom plate. The bottom of the center mount is connected to the inner ring of the bottom plate, the heat transfer fin is connected to the inner wall of the outer peripheral heat shield and the outer wall of the center mount, the LED light board and the lens are placed on the bottom plate in the center mount, and the lens is fixed on the inner side of the bottom plate The lamp cap is fixed on the outer side of the bottom plate, and the built-in driving circuit of the lamp cap is electrically connected to the LED lamp board through the through hole on the bottom plate.

The bottom of the central mounting seat of the heat dissipating body forms a threaded hole, and the lamp cap correspondingly forms a stepped hole, and the screw is connected to the threaded hole through the stepped hole, so that the heat dissipating body is fixed on the lamp cap.

A through hole is formed in the middle of the bottom plate of the heat dissipating body, and a threaded hole is formed under the lens, and the screw is connected to the threaded hole through the through hole to fix the lens on the heat dissipating body.

After adopting the above solution, the invention can not only dissipate heat through the surface of the central mounting seat, but also dissipate heat through the heat transfer sheet and the bottom plate, and can further transfer heat to the outer peripheral heat sink through the heat transfer sheet and the bottom plate, and then dissipate heat from the surface of the outer peripheral heat sink cover. It is beneficial to dissipate the heat generated by the operation of the LED light board in time, and the heat dissipation effect is better, avoiding the excessive temperature and affecting the work of the spotlight, so that the service life of the spotlight is longer.

Compared with the prior art, the present invention replaces the heat-dissipating fins with complicated structure and inconvenient processing by replacing the heat-dissipating area with the outer peripheral heat-dissipating cover, the central mounting seat and the heat transfer sheet, thereby preventing dust from entering, protecting the LED light board and the lens, and avoiding Affect the normal use of the product.

The invention will be further described below in conjunction with the drawings and specific embodiments.

附图说明DRAWINGS

1 is a schematic structural view of an LED spotlight in the prior art;

Figure 2 is an exploded perspective view of the present invention;

Figure 3 is a perspective assembled view of the present invention;

Figure 4 is a cross-sectional view of the combination of the present invention.

Label description

Lamp head 10 heat sink 20

Light bulb 30

Lamp head 1 stepped hole 11

Heat sink 2 outer peripheral heat shield 21

Center mount 22 heat transfer sheet 23

Base plate 24 through hole 25

Threaded hole 26

LED light board 3

Lens 4 threaded hole 41

具体实施方式detailed description

As shown in FIG. 2 to FIG. 4, it is a preferred embodiment of the present invention, an LED spotlight, comprising a lamp cap 1, a heat sink 2, a driving circuit (common components, not shown), an LED lamp panel 3, and The lens 4 is composed.

The heat sink 2 has an outer peripheral heat sink 21, a center mount 22, a heat transfer sheet 23, and a bottom plate 24. The bottom of the outer peripheral heat shield 21 is attached to the outer edge of the bottom plate 24. The bottom of the center mount 22 is attached to the inner ring of the bottom plate 24. The heat transfer sheet 23 is attached to the inner wall of the outer peripheral heat dissipation cover 21 and the outer wall of the center mount 22.

The LED panel 3 and the lens 4 are placed on the bottom plate 24 in the center mount 22, and the lens 4 is fixed inside the bottom plate 24. Specifically, a through hole 25 may be formed in the middle of the bottom plate of the heat sink 2, and a screw hole 41 is formed under the lens 4, and a screw (common member, not shown) is connected to the screw hole 41 through the through hole 25 to fix the lens 4. On the heat sink 2.

The base 1 is fixed to the outside of the bottom plate 24, and the LED lamp 3 is electrically connected to the drive circuit in the base 1 through the through hole 25 of the heat sink 2. Specifically, a threaded hole 26 may be formed in the bottom of the central mounting seat 22 of the heat dissipating body 2, and the lamp cap 1 correspondingly forms a stepped hole 11, and a screw (common member, not shown) is connected to the threaded hole 26 through the stepped hole 11 to make the heat sink 2 is fixed on the lamp cap 1.

One aspect of the present invention can dissipate heat through the surface of the center mount 22, and on the other hand, can dissipate heat through the heat transfer fins 23 and the bottom plate 24. On the other hand, heat can be transferred to the outer peripheral heat shield 21 through the heat transfer fins 23 and the bottom plate 24, from the periphery. The heat dissipating surface of the heat dissipating cover 21 is dissipated. Thus, the invention is advantageous for dissipating the heat generated by the operation of the LED lamp board 3 in time, the heat dissipating effect is better, the service life is longer, and the structure is simplified, the processing is convenient, the dust is prevented from entering, and the protection is good. LED panels and lenses to avoid affecting the normal use of the product.

The above description is only one embodiment of the present invention, and is not a limitation on the design of the present case. Any equivalent changes made according to the design key of the present case fall within the scope of protection of the present case.

Claims

1. An LED spotlight consisting of a lamp head, a heat sink, a driving circuit, an LED lamp board and a lens, wherein the heat sink has a peripheral heat sink, a center mount, a heat transfer sheet and a bottom plate, and a bottom of the outer heat sink cover Connected to the outer edge of the bottom plate, the bottom of the center mount is connected to the inner ring of the bottom plate, the heat transfer fin is connected to the inner wall of the outer peripheral heat sink and the outer wall of the center mount, and the LED light board and the lens are placed on the bottom plate in the center mount. The lens is fixed on the inner side of the bottom plate, and the lamp cap is fixed on the outer side of the bottom plate, and the built-in driving circuit of the lamp cap is electrically connected to the LED lamp board through the through hole on the bottom plate.

2 . The LED spotlight according to claim 1 , wherein the bottom of the central mounting seat of the heat dissipating body forms a threaded hole, and the lamp head forms a stepped hole correspondingly, and the screw is connected to the threaded hole through the stepped hole to dissipate heat. The body is fixed on the lamp cap.

3. The LED spotlight according to claim 1, wherein a through hole is formed in the middle of the bottom plate of the heat dissipating body, and a screw hole is formed under the lens, and the screw is connected to the screw hole through the through hole to fix the lens. On the heat sink.