TWM451488U - Assembly structure of LED lamp and heat dissipation plate - Google Patents

Description

Combination structure of LED lamp and heat sink

This creation is related to LEDs, especially a combination of LED lights and heat sinks.

In order to save energy and save carbon, there are many LED lights on the market. Although these LED lights have achieved the function of power-saving lighting, the heat dissipation of LED lights is always a big problem. The current practice is to directly make a heat sink by means of metal casting or to make a heat sink by soldering a plurality of metal plates, and then apply one side of the heat sink to the heat sink paste and then adhere to one side of the circuit board. To use as a heat sink. Because the thermal energy can not be effectively transmitted to the heat sink through the plastic circuit board, these practices are not only ineffective, but also the cost of the cast heat sink is too high. The welded heat sink is too cumbersome to make the heat conduction effect because the plate is not continuous. Well, it also causes the manufacturing cost of LED lights to increase and lose market competitiveness.

In view of the above-mentioned shortcomings, the main purpose of the present invention is to provide a combination structure of an LED lamp and a heat sink which are easy to manufacture and have good heat conduction effect.

In order to achieve the above object, the combination structure of the LED lamp and the heat dissipation plate provided by the creation is directly bent into a three-dimensional heat dissipation plate having a plurality of convex elevations, and the heat dissipation plate is fixed to the circuit board through a metal connecting member. So that the heat sink can receive the light from the LED through the metal connector The heat is generated to achieve the purpose of heat dissipation.

In order to explain the features and functions of the present invention in detail, the following embodiments are described below with reference to the drawings.

As shown in the first to fourth figures, the first embodiment of the combined structure of the LED lamp and the heat sink is:

a heat dissipation plate 10 is formed by bending a metal plate, which may be made of a metal material such as iron, copper, aluminum, alloy, etc., and the heat dissipation plate has a three-dimensional structure of a plurality of convex elevation faces 11 after bending and The fixing plate is provided with a plurality of fixing holes, and the fixing holes are directly punched and formed on the metal plate. The heat dissipating plate may be integrally bent by a single metal plate or may be formed by bending a plurality of metal plates and then combined, and the combination may be riveting, screwing, welding or bonding. In the first embodiment of the present invention, the heat dissipation plate is continuously bent by a long metal plate to form a plurality of outwardly bent and radially curved façades, and a convex portion is bent on one side of the plurality of façades. The ear 12 is provided with a fixing hole 13 formed by directly punching or drilling the lug.

A circuit board 20 is disposed on the front surface of the circuit board and at least one LED 21. The circuit board is provided with a through hole 22 corresponding to the position of the heat dissipation plate fixing hole 13.

The plurality of metal connectors 30 are disposed on the heat dissipation plate fixing holes 13 and the through holes 22 of the circuit board. The heat dissipation plate 10 is fixedly disposed on the back surface of the circuit board 20 through the combination of the metal connectors. The metal connector can be a rivet or a bolt.

A lamp cover 40 has an annular body and a hollow portion in the middle of the annular body. The circuit board 20 is disposed in the lamp cover, and the heat dissipation plate 10 passes through the transparent portion to be exposed outside the lamp cover.

In the structure of the first embodiment of the present invention, the heat sink can be directly fixed to the circuit board through the riveting of the rivet or the screwing of the bolt, and since the metal connectors are penetrated from the back side of the circuit board to The front side of the board, so when the LEDs on the board illuminate to generate heat, the metal connectors can accept the heat and conduct heat directly to the heat sink connected to the metal connectors for heat dissipation. Moreover, since the heat sink is integrally bent by a metal plate in the present creation, the heat transfer effect is better than that of the heat sink which is connected by a plurality of metal plates. It is simpler and cheaper to produce than a cast metal plate.

As shown in the fifth and sixth figures, the second embodiment of the combined structure of the LED lamp and the heat sink is:

A heat dissipating plate 10 is formed by bending a metal plate so that the heat dissipating plate has a three-dimensional structure of a plurality of convex façades 11 and the plurality of fixing holes are disposed on the heat dissipating plate, and the fixing holes are directly punched in the metal plate Forming, the heat dissipating plate may be integrally bent by a metal plate or may be formed by bending a plurality of metal plates, and the metal plate may be riveted, screwed, welded or bonded. In the embodiment, the heat dissipation plate is stamped and bent into a plurality of concave and convex ribs by a metal plate, and each rib includes two vertical faces 11 and a lateral surface 14 between the two vertical faces, and the heat dissipation is performed. The plate is provided with fixing holes 13 at each lateral surface, and the fixing holes are directly punched or drilled by the metal plate.

A circuit board 20 is disposed on the front surface of the circuit board and at least one LED 21. The circuit board is provided with a through hole 22 corresponding to the position of the heat dissipation plate fixing hole 13.

The plurality of metal connectors 30 are disposed on the heat dissipation plate fixing holes 13 and the through holes 22 of the circuit board. The heat dissipation plate 10 is fixedly disposed on the back surface of the circuit board 20 through the combination of the metal connectors 30. The metal connector can be a rivet or a bolt.

A lamp cover 40 has an annular body and a hollow portion in the middle of the annular body. The circuit board 20 is disposed in the lamp cover, and the heat dissipation plate 10 passes through the transparent portion to be exposed outside the lamp cover.

In the second implementation of the present invention, the heat sink is connected to the circuit board in the same manner as the previous embodiment. Therefore, when the LEDs on the board emit light to generate heat, the metal connectors can receive the heat and conduct the heat directly to the heat sink connected to the metal connectors for heat dissipation. Moreover, since the heat sink is integrally bent by a metal plate in the present creation, the heat transfer effect is better than that of the heat sink which is connected by a plurality of metal plates. It is simpler and cheaper to produce than a cast metal plate.

In the present invention, the number of the fixing holes on the heat dissipating plate is not particularly limited. For example, in the first example, the lugs and the fixing holes are provided with a lug and a fixing hole every time a bend is formed. In the second embodiment, a fixing hole is provided on each lateral surface.

10‧‧‧heating plate

11‧‧‧Facade

12‧‧‧ lugs

13‧‧‧Fixed holes

20‧‧‧ boards

21‧‧‧LED

22‧‧‧through holes

30‧‧‧Metal connectors

40‧‧‧shade

The first figure is a perspective view of the heat dissipation plate of the first embodiment of the present invention; The second figure is a schematic diagram of the top surface of the heat dissipation plate of the first embodiment of the present invention; The third figure is a schematic side view of the first embodiment of the creation; The fourth figure is a schematic cross-sectional view of the first embodiment of the creation; The fifth figure is a perspective view of the heat dissipation plate of the second embodiment of the present invention; The sixth drawing is a schematic side view of the second embodiment of the creation.

10‧‧‧heating plate

11‧‧‧Facade

12‧‧‧ lugs

13‧‧‧Fixed holes

20‧‧‧ boards

40‧‧‧shade

Claims (10)

A combination structure of an LED lamp and a heat dissipation plate comprises: a heat dissipation plate which is formed by bending a metal plate, the heat dissipation plate has a three-dimensional structure of a plurality of convex elevations, and the heat dissipation plate is provided with a plurality of fixing holes, and the fixing The hole is directly formed on the metal plate; a circuit board having a circuit on the front surface thereof and at least one LED, the circuit board is provided with a through hole; a plurality of metal connecting members are disposed on the fixing hole of the heat dissipation plate and the circuit The heat dissipation plate is fixedly disposed on the back surface of the circuit board through the combination of the metal connectors; the lamp cover has an annular body and a hollow portion in the middle of the annular body, the circuit board is provided The heat sink passes through the transparent portion and is exposed outside the light cover. According to the combination structure of the LED lamp and the heat dissipation plate according to claim 1, wherein the heat dissipation plate is continuously bent by a long metal plate to form a plurality of curved faces which are bent outward and are radially formed. According to the combination structure of the LED lamp and the heat dissipation plate according to the second aspect of the patent application, one side of the plurality of façades is bent with a lug, and the fixing holes are provided at the lugs. According to the combination structure of the LED lamp and the heat dissipation plate according to Item 3 of the patent application, wherein the lugs and the fixing holes are provided with a lug and a fixing hole every time a bend is formed. According to the combination structure of the LED lamp and the heat dissipation plate according to claim 1, wherein the circuit board corresponds to the position of the fixing hole of the heat dissipation plate These through holes are provided. The combination structure of the LED lamp and the heat dissipation plate according to Item 1 of the patent application scope, wherein the heat dissipation plate has a plurality of ribs which are staggered at intervals. According to the combination structure of the LED lamp and the heat dissipation plate according to claim 6, wherein each rib portion includes two vertical faces and a lateral face between the two vertical faces, and the heat dissipation plate is disposed at each lateral face There is this fixing hole. A combination of an LED lamp and a heat sink according to claim 1 of the patent application, wherein the metal connector is a rivet. According to the combination structure of the LED lamp and the heat dissipation plate described in claim 1, wherein the heat dissipation plate can be integrally formed by bending a metal plate. According to the combination structure of the LED lamp and the heat dissipation plate according to claim 1, wherein the heat dissipation plate can be bent by two or more metal plates and then combined.