A radiator for a light source panel of a lamp

Abstract

The present invention relates to a radiator for a light source board of a lamp, the radiator comprising a first heat conduction part and a second heat conduction part, the first heat conduction part comprising a heat sink, the second heat conduction part comprising a plurality of fin groups connected to the heat sink, and each fin group having a plurality of spaced heat dissipation fins, the extension direction of the heat dissipation fins and the plane where the heat sink is located forming an angle of 85° to 90°, each fin group being spaced apart along the extension direction of the overall shape of the heat sink, or each fin group being spaced apart from the inside of the heat sink to the outside in sequence; the radiator for a light source board of the present invention can cause an air convection effect, thereby accelerating heat exchange and reducing the temperature of the light source board. The heat dissipation fins are distributed in groups on the heat sink, so that the overall distribution of the heat dissipation fins is staggered, and such a setting can distribute more heat dissipation fins on a heat sink of a limited area, thereby improving the heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting lamp heat dissipation, and in particular to a radiator of a light source plate of a lamp. Background Art

[0002] The development of the lighting industry is in line with the policy requirements of energy conservation and emission reduction. On the other hand, it can save us electricity expenses, so LED lighting products are very popular with consumers. With the development of the lighting industry, the independent metal heat sinks used in LED lamps in the existing lighting market (used for heat dissipation of LED lamp light source panels) include: die-cast heat sinks, extruded heat sinks, stamped fin heat sinks, cold forged heat sinks, plastic-coated aluminum heat sinks, etc., each has its own advantages in comprehensive performance, but also has different disadvantages, including: complex molding process, too heavy weight, high price, low heat dissipation efficiency, hot forming process is not environmentally friendly, etc. The radiator is the main structural part of LED lamps. The production cost of the radiator is directly related to the economic benefits of the company's production of LED lamps. Then how to provide a radiator that is easy to produce, low in investment cost and high in heat dissipation efficiency has become a problem that technical personnel in this field need to consider. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a radiator for a light source panel of a lamp with excellent heat dissipation performance and extremely low manufacturing cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A radiator for a light source board of a lamp, the radiator comprising a first heat conduction part and a second heat conduction part, the first heat conduction part comprising a heat sink, the second heat conduction part comprising a plurality of fin groups connected to the heat sink, and each fin group having a plurality of spaced-apart heat dissipating fins, the extension direction of the heat dissipating fins forming an angle of 85° to 90° with the plane where the heat sink is located, the fin groups being spaced apart along the overall outer contour of the heat sink or the fin groups being spaced apart in sequence from the inside to the outside of the heat sink.

[0006] Preferably, each heat dissipation fin is integrally arranged with the heat dissipation plate.

[0007] Preferably, each heat dissipation fin and heat dissipation plate is formed by punching, cutting and bending a metal plate.

[0008] Preferably, the heat sink consists of and only includes a heat sink and heat sink fins.

[0009] Preferably, each fin group is distributed at intervals along the overall outer contour of the heat sink, and each heat sink fin in each fin group is distributed at intervals in sequence from the inside to the outside of the heat sink.

[0010] Preferably, the height of each heat dissipating fin in each fin group is gradually increased from the outside to the inside.

[0011] Preferably, the overall outer contour of the heat sink is in a rectangular shape, the fin groups are spaced apart along both sides of the rectangular heat sink in the length direction, and each fin group has two heat sink fins.

[0012] Preferably, the overall outer contour of the heat sink is circular, and the heat sink comprises an intermediate body, a plurality of connectors connected to the outer periphery of the intermediate body and distributed in a square pattern along the circumference, and each connector is provided with a group of fins.

[0013] Preferably, the overall outline of the heat dissipation plate is polygonal.

[0014] Preferably, the overall outer contour of the heat sink is in the shape of a regular hexagon. Six fin groups are arranged on the regular hexagonal heat sink, and the fins in each fin group are distributed in a triangular area.

[0015] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] The radiator of the light source board of the lamp of the present invention is composed of a heat sink and heat fins on the heat sink. The heat sink is in close contact with the light source board, that is, the heat of the light source board will be absorbed by the heat sink, and the heat will be conducted to the heat fins in the vertical direction along the heat sink in the horizontal direction. The heated air will flow upward, and the cold air from the outside will quickly fill it up, causing air convection effect, thereby accelerating heat exchange and reducing the temperature of the light source board. In addition, the heat sink fins are distributed in groups on the heat sink, so that the overall distribution of the heat sink fins is staggered. Such a setting can distribute more heat sink fins on a heat sink with a limited area, thereby improving the heat dissipation efficiency; in addition, the staggered heat sink fins are spaced apart from each other, and will not hinder the flow of the incoming cold air. The air can enter the heat dissipation area from any direction and flow upward after being heated.

[0017] Furthermore, the radiator, heat sink and heat sink fins on the radiator of the lamp light source board of the present invention are formed by punching, cutting and bending pieces of metal plates, that is, a corresponding stamping die is designed, and the radiator can be manufactured in one stamping operation. Compared with the prior art, the manufacturing process is extremely simple, and mass stamping manufacturing is very convenient. Moreover, the raw material of each radiator is only a small piece of metal plate, which further reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the radiator of the present invention (the overall shape of the radiator plate is a rectangular shape);

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the radiator of the present invention (the overall shape of the radiator plate is polygonal);

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the radiator of the present invention (the overall shape of the radiator plate is circular, viewed from below);

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the radiator of the present invention (the overall shape of the radiator plate is circular, viewed from above);

[0022] Wherein: 1. heat sink; 2. heat sink fin; 20. fin group. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 As shown, a radiator for a light source board of a lamp, the radiator includes a first heat conduction part and a second heat conduction part, the first heat conduction part includes a heat sink 1, the second heat conduction part includes a plurality of fin groups 20 connected to the heat sink 1, and each fin group 20 has a plurality of spaced heat sinks 2, the extension direction of the heat sink 2 forms a 90° angle with the plane where the heat sink 1 is located, in this example, the radiator consists of and only includes the heat sink 1 and each heat sink fin 2; each heat sink fin 2 and the heat sink 1 are formed by punching and bending a metal plate. By designing a corresponding stamping die, the production of the radiator can be completed in one stamping operation. Compared with the existing technology, the production process is extremely simple, and mass stamping production is very convenient, and the raw material of each radiator is only a small piece of metal plate, which further reduces the production cost.

[0026] In addition, each fin group 20 is spaced apart along the extension direction of the outer contour of the heat sink 1, and each heat sink fin 2 in each fin group 20 is spaced apart from the inside of the heat sink 1 to the outside. And each heat sink fin 2 in each fin group 20 is gradually increased in height from the outside to the inside.

[0027] Usually, the heat near the middle of the light source panel is greater, while the heat in the surrounding area is relatively smaller, so the height of the heat dissipation fins 2 on the outside of the heat dissipation plate 1 is set lower, and the height of the heat dissipation fins 2 on the inside is set higher. In addition, because of the shrinking design of the lamp shell, the height of the heat dissipation fins 2 on the outside of the heat dissipation plate 1 is set lower, which can avoid the lamp shell.

[0028] Note: The definition of the fin group 20 can be defined according to the extension direction of the outer contour of the heat sink 1, or according to the inner and outer directions of the heat sink 1. If the fin group 20 is defined according to the inner and outer directions of the heat sink 1, then the multiple heat sink fins 2 in the fin group 20 are arranged at intervals according to the extension direction of the outer contour of the heat sink 1. Then, the heat sink fins 2 in the same fin group 20 have the same height, and the height of the heat sink fins 2 in the inner group of two adjacent fin groups 20 is higher than the height of the heat sink fins 2 in the other group of fin groups 20.

[0029] In this example, the overall shape of the heat sink 1 is rectangular, and each fin group 20 is spaced apart along both sides of the length direction of the rectangular heat sink 1, and each fin group 20 has two heat sink fins 2. The two heat sink fins 2 of each group are also staggered in the length direction of the heat sink 1.

[0030] Example 2

[0031] See also Figure 2 As shown, the basic structural principle of the radiator is the same as that in the embodiment 1, and there are only slight differences in the overall shape of the heat sink 1 and the distribution of the heat sink fins 2 on the heat sink 1.

[0032] In this example, the overall shape of the heat sink 1 is polygonal. Specifically, the overall shape of the heat sink 1 is a regular hexagon. Six fin groups 20 are arranged on the regular hexagonal heat sink 1, and the fins in each fin group 20 are distributed in a triangular area. The triangular area where each fin group 20 is located corresponds to one side of the regular hexagonal heat sink 1.

[0033] Example 3

[0034] See also Figure 3 , Figure 4 As shown, the basic structural principle of the radiator is the same as that in the embodiment 1, and there are only slight differences in the overall shape of the heat sink 1 and the distribution of the heat sink fins 2 on the heat sink 1.

[0035] In this example, the overall shape of the heat sink 1 is circular, and the heat sink 1 includes an intermediate body (the overall shape of the intermediate body can be a toroidal body or a circular body according to the design requirements of the lamp product), a plurality of connectors connected to the outer periphery of the intermediate body and distributed in sequence along the circumference in a square shape, and each connector is provided with a group of fin groups 20. Each connector extends from the inside to the outside along the radial direction of the intermediate body, and a plurality of heat dissipating fins 2 in each fin group 20 are distributed in sequence along the extension direction of each connector.

[0036] In summary, the radiator of the light source board of the lamp of the present invention is composed of a heat sink and heat sink fins on the heat sink. The heat sink is in close contact with the light source board, that is, the heat of the light source board will be absorbed by the heat sink, and the heat will be conducted to the heat sink fins in the vertical direction along the horizontal heat sink. The heated air will flow upward, and the cold air from the outside will quickly fill in, causing air convection effect, thereby accelerating heat exchange and reducing the temperature of the light source board. In addition, the heat sink fins are distributed in groups on the heat sink, so that the overall distribution of the heat sink fins is staggered. Such a setting can distribute more heat sink fins on a heat sink with a limited area, thereby improving the heat dissipation efficiency. In addition, the staggered heat sink fins are spaced apart from each other, and will not hinder the flow of incoming cold air. Air can enter the heat dissipation area from any direction and flow upward after being heated.

[0037] Furthermore, the radiator, heat sink and heat sink fins on the radiator of the lamp light source board of the present invention are formed by punching, cutting and bending pieces of metal plates, that is, a corresponding stamping die is designed, and the radiator can be manufactured in one stamping operation. Compared with the prior art, the manufacturing process is extremely simple, and mass stamping manufacturing is very convenient. Moreover, the raw material of each radiator is only a small piece of metal plate, which further reduces the manufacturing cost.

[0038] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A radiator for a light source panel of a lamp, comprising: a heat transfer portion, the heat transfer portion comprising a heat sink; A heat dissipation portion, the heat dissipation portion comprising a plurality of fin groups connected to the heat dissipation plate, each fin group having a plurality of spaced heat dissipation fins, an extension direction of the heat dissipation fins and a plane where the heat dissipation plate is located forming an angle of 85° to 90°, and each of the fin groups is spaced apart along the overall outer contour of the heat dissipation plate; Features: The overall outer contour of the heat sink is circular. The heat sink includes an intermediate body, a plurality of connectors connected to the outer periphery of the intermediate body and spaced in sequence along the circumferential direction. The width of each connector is gradually increased from the outside to the inside. Each connector extends from the inside to the outside along the radial direction of the intermediate body. A group of fin groups is respectively arranged on each connector. Each heat dissipation fin of the same fin group is located on the same side of the connector where the fin group is located. The fin groups are all arranged on the same side of the connector. Multiple heat dissipation fins in each fin group are spaced in sequence along the extension direction of each connector. The height of each heat dissipation fin in each fin group is gradually increased from the outside to the inside. Each heat dissipation fin and the heat sink are formed by punching and bending a metal plate.

2. The radiator for the light source panel of the lamp according to claim 1, characterized in that: Each of the heat dissipation fins is integrally arranged with the heat dissipation plate.

3. The radiator for the light source panel of the lamp according to claim 1, characterized in that: The heat sink has and only includes the heat sink plate and the heat sink fins.

4. The radiator for the light source panel of the lamp according to claim 1, characterized in that: There is one and only one set of fin groups between adjacent connectors.

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