CN203517707U - Columnar LED radiator - Google Patents

Abstract

The utility model relates to the technical field of LED lighting, in particular to a columnar LED radiator; the radiator comprises a columnar heat conduction core column, and the functional radiating fins are detachably arranged on the heat conduction core column in a clinging manner with the core column mounting surface through a heat radiation mounting surface; the detachable setting of function fin is on the heat conduction stem, through the combination of the function fin of the different figure of disposition, forms the LED radiator of different heat dissipating ability, adapts to the LED lamp heat dissipation of different power performance, and accommodation is wide, need not the die sinking preparation again, especially adapts to small batch production, reduction in production cost.

Description

A columnar LED radiator

technical field

The utility model relates to the technical field of LED lighting, in particular to a columnar LED radiator.

Background technique

Semiconductor electric light source is a kind of electric light source without filament. It is a light-emitting device that directly converts electrical energy into light energy. It is called a light-emitting diode, also known as a semiconductor lamp, and is referred to as LED in English.

Semiconductor lighting is considered to be a new energy-saving light source for lighting in the 21st century. LED not only saves energy, but also has the characteristics of long life, small size, safety, environmental protection, maintenance-free, and easy control. LEDs can already replace traditional light sources in many places, especially the emergence of high-power LEDs, which has accelerated the speed at which LEDs replace traditional lighting sources, and has also made the large-area application of LEDs in indoor lighting a reality.

High-power LED is a direction for the future development of the industry, but high-power LED has higher requirements on heat dissipation technology. The greater the power of the LED module, the higher the heat flux density of the chip. When the effect of the radiator is poor, the temperature of the LED chip rises sharply, which will quickly cause light decay and even damage the LED chip. Only by solving the heat dissipation technology of high-power LEDs and delaying the light decay of LEDs to the greatest extent can the application of high-power LEDs be widely promoted.

At present, many high-power LED lamps use aluminum columnar radiators for heat dissipation, which need to be machined or molded. Columnar radiators generally include a heat-conducting core column in the middle and functional heat sinks integrated around the periphery. This columnar radiator Due to the constant heat dissipation performance of the radiator, it can only be adapted to the use of LED radiators with a certain performance and power. For the heat dissipation of LED lamps with different power performances, it is necessary to match the heat dissipation performance of the radiator, which needs to be re-made, especially in small batches. case, increase the production cost.

Utility model content

The utility model aims to provide a columnar LED radiator that solves the above problems in order to solve the problem that the current LED lamp columnar radiator can only meet the problem of heat dissipation of LED lamps with one performance.

In order to achieve the above object, the utility model adopts the following technical solutions:

A columnar LED heat sink, the heat sink includes a columnar heat-conducting stem, the outer circumference of the heat-conducting stem is provided with several stem mounting surfaces in the length direction; the heat sink also includes a functional heat sink, and the functional heat sink is provided with The heat dissipation installation surface, the functional heat sink is detachably arranged on the heat conduction stem in close contact with the stem installation surface through the heat dissipation installation surface.

Preferably, the functional heat sink is a fin-shaped heat sink.

Preferably, the functional cooling fins are dendritic cooling fins.

Preferably, the heat-conducting core column is provided with a box groove, and the functional heat sink is provided with a box block, and the box block of the functional heat sink is inserted into the box groove on the heat-conducting core column so that the mounting surface of the core column is closely attached to the heat dissipation installation surface. .

Preferably, the heat-conducting core column is provided with a screw hole, the functional heat sink is provided with a perforation, and a bolt is connected to the screw hole through the perforation so that the mounting surface of the core column is closely attached to the heat dissipation installation surface.

Preferably, thermal conductive silica gel is arranged between the mounting surface of the stem and the heat dissipation mounting surface.

The beneficial effects of the utility model are: a columnar LED heat sink of the utility model, the radiator includes a columnar heat-conducting core column, and the functional heat sink is detachably arranged in close contact with the core column installation surface On the heat-conducting core column; the functional heat sink is detachably set on the heat-conducting core column. Through the combination of different numbers of functional heat sinks, LED heat sinks with different heat dissipation performances are formed to adapt to the heat dissipation of LED lamps with different power performances. Wide range, no need to re-open the mold for production, especially suitable for small batch production, reducing production costs.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1

Fig. 2 is a schematic diagram of the structure of some functional cooling fins set in Embodiment 1 of the present utility model

Fig. 3 is a structural schematic diagram of a functional heat sink in Embodiment 1 of the utility model

Fig. 4 is the schematic cross-sectional view of the utility model embodiment 2

Detailed ways

Below in conjunction with accompanying drawing 1-4, the utility model is further elaborated:

Embodiment 1, as shown in Figures 1-3, is a columnar LED radiator. The radiator includes a columnar heat-conducting stem 1, and the outer circumference of the heat-conducting stem 1 is provided with several stem mounting surfaces 11 in the length direction. In the embodiment, there are six stem mounting surfaces 11; the heat sink also includes a functional heat sink 2, the common heat sink in this embodiment is a fin-shaped heat sink, and the functional heat sink 2 is provided with a heat dissipation installation surface 21, and the functional heat sink 2 The heat dissipation mounting surface 21 is closely attached to the stem mounting surface 11 and is detachably arranged on the heat conducting stem 1. In order to facilitate the detachable connection, this embodiment is provided with a screw hole 13 on the heat conducting stem 1. The functional heat sink 2 is provided with a perforation 23, and a bolt 3 is connected to the screw hole 13 through the perforation 23 so that the stem mounting surface 11 and the heat dissipation mounting surface 21 are in close contact, and the heat conduction stem 1 and the functional heat sink 2 are detachably connected. 1. It is easy to disassemble and form a heat sink with required heat dissipation performance. Of course, the two can also be connected by riveting posts; surface, this embodiment is set as a plane.

Embodiment 2, as shown in Figure 4, the structure of this embodiment is similar to that of Embodiment 1, the difference is that in this embodiment, there are five pieces of stem mounting surfaces 11 and matching functional cooling fins 2 (of course the functional heat dissipation slices can be combined and set according to requirements); the connection mode between the heat conduction stem 1 and the functional heat sink 2 is also different, in this embodiment, the heat conduction stem 1 is provided with a box groove 12, and the functional heat sink 2 is provided with a box block 22, the function The box block 22 of the heat sink 2 is inserted into the box groove 12 on the heat conduction stem 1 so that the stem mounting surface 11 and the heat dissipation installation surface 21 are in close contact. In addition, the functional heat sink 2 of this embodiment is a dendritic heat sink, which extends outward to increase the heat dissipation surface area and improve heat dissipation performance; in order to make the contact between the stem mounting surface 11 and the heat dissipation mounting surface 21 close, increase the heat conduction The heat conduction silica gel 4 is arranged between the stem mounting surface 11 and the heat dissipation mounting surface 21.

A columnar LED heat sink of the utility model, the radiator includes a columnar heat-conducting core column 1, and the functional heat sink 2 is closely attached to the heat-conducting core column 1 through the heat-dissipating mounting surface 21 and the mounting surface 11 of the core column in a detachable manner. Above; the functional heat sink 2 is detachably arranged on the heat-conducting core column 1, and through the combination of different numbers of functional heat sinks 2 (as shown in Figure 2, 3 groups of functional heat sinks are set), LED heat dissipation with different heat dissipation performances is formed. The utility model adapts to the heat dissipation of LED lamps with different power performances, has a wide range of applications, does not need to be re-opened for mold production, and is especially suitable for small-batch production, reducing production costs; The material is used to achieve better matching of heat dissipation performance and optimize the performance of the radiator.

The embodiments described above are only preferred examples of the utility model, and are not intended to limit the scope of implementation of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the utility model, All should be included in the utility model patent application scope.

Claims (6)

1. a column LED radiator, is characterized in that, described radiator comprises the heat conduction stem stem (1) of column, and the periphery of heat conduction stem stem (1) arranges some stem stem installed surfaces (11) at length direction; Described radiator also comprises function heat dissipating (2), described function heat dissipating (2) arranges heat radiation installed surface (21), and described function heat dissipating (2) is close to detachable being arranged on heat conduction stem stem (1) by heat radiation installed surface (21) and described stem stem installed surface (11).

2. a kind of column LED radiator according to claim 1, is characterized in that: described function heat dissipating (2) is sheet fin-shaped fin.

3. a kind of column LED radiator according to claim 1, is characterized in that: described function heat dissipating (2) is dendritic fin.

4. a kind of column LED radiator according to claim 1, it is characterized in that: on described heat conduction stem stem (1), be provided with casket groove (12), function heat dissipating (2) is provided with casket piece (22), and the casket groove (12) that the casket piece (22) of function heat dissipating (2) plugs on heat conduction stem stem (1) is close to stem stem installed surface (11) and heat radiation installed surface (21).

5. a kind of column LED radiator according to claim 1, it is characterized in that: on described heat conduction stem stem (1), be provided with screw (13), function heat dissipating (2) arranges perforation (23), and a bolt (3) is close to stem stem installed surface (11) and heat radiation installed surface (21) by perforation (23) connecting screw hole (13).

6. a kind of column LED radiator according to claim 1, is characterized in that: between described stem stem installed surface (11) and heat radiation installed surface (21), be provided with thermal conductance silica gel (4).

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