CN209801421U

CN209801421U - Divergent efficient aluminum fin radiator

Info

Publication number: CN209801421U
Application number: CN201920513411.9U
Authority: CN
Inventors: 陈彪; 郝炜; 杜正清; 陈文超; 孙银群
Original assignee: Jiangsu Hongchang Science And Technology Co Ltd
Current assignee: Jiangsu Hongchang Science And Technology Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2019-12-17
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a divergent high-efficiency aluminum fin radiator, which comprises a radiating substrate and fins, wherein the radiating substrate can be a rectangular flat plate with two planar sides, or a hemisphere with one flat plate-shaped surface and a cross section in a shape of a poor arc; the fin structure is characterized in that a plurality of fins are uniformly distributed on one side of the rectangular flat plate or on the surface of the hemisphere along the circumferential direction, the fins extend outwards along the radial direction in a divergence shape, the distance is gradually increased, the thickness of the fins is gradually reduced from the root to the top, and corrugated protruding structures are arranged on the surfaces of the fins to enhance air disturbance and improve the heat dissipation capacity. An object of the utility model is to provide a form high-efficient aluminium fin radiator disperses to solve among the prior art LED car headlight radiator volume great, the limited problem of radiating effect through improving the fin arrangement, realizes improving the radiating efficiency, adapts to near car headlight the narrow and small purpose in heat dissipation space.

Description

Divergent efficient aluminum fin radiator

Technical Field

The utility model relates to a heat abstractor's application, in particular to a form high-efficient aluminium fin radiator disperses for LED car headlight.

background

With the gradual increase of the upgrading speed of the automobile industry, automobile manufacturers are continuously increasing the technological content of each part and an automobile system in order to meet the requirements of users, and as for automobile headlamps, the power density of the automobile headlamps is increased by times, so that the original radiator cannot meet the requirements, the automobile headlamps are fast in failure, and the stability is reduced. At present, the heat dissipation structure of the automobile headlamp is basically that a heat dissipation substrate is in direct contact with a heat source, the heat generated by a light source is taken away by increasing the heat dissipation area through arranging fins on the substrate, but the space in an automobile lamp assembly is narrow, and requirements are made on the aspects of the volume of a radiator, the convenience of installation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the above-mentioned background art, provide a form high-efficient aluminium fin radiator disperses, its is small, and heat radiating area is big, and space utilization is high, and it is narrow and small to solve car headlight assembly inner space effectively, the limited problem of radiating effect.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a divergent efficient aluminum fin radiator comprises a radiating base plate and radiating fins, wherein the radiating base plate and the radiating fins are integrally processed and formed; the method is characterized in that: the radiating substrate is a rectangular flat plate with two planar sides, one surface of the radiating substrate is a flat plate, and the other surface of the radiating substrate is a hemisphere with a cross section in a minor arc shape.

The radiating fins extend outwards along the radial direction in a divergence shape, the distance is gradually increased, and the thickness of the radiating fins is gradually reduced from the root to the top. The thickness of the root of the radiating fin is increased, so that the temperature difference between the radiating fin and the air is improved, and the heat exchange efficiency is further improved.

The height of the corrugated protrusion arranged on the surface of the radiating fin along the direction from the root to the top of the fin is less than or equal to 5mm, namely the distance between the outer end point of the protrusion and the surface of the fin is less than or equal to 5mm, so that air disturbance is enhanced, and the radiating capacity is improved.

The length of the radiating fin is determined by the size of a heat source and the radiating space, and is generally 50-100 mm.

Compared with the prior art, the cooling fin structure not only increases the number of the cooling fins, but also gradually increases the fin spacing along the radial direction, changes the traditional equidistant structure and obviously improves the air convection capacity; meanwhile, the surfaces of the fins are provided with the corrugated bulges, so that the heat exchange area is increased, and under the condition that the space of the whole car lamp assembly is not changed, the technologies improve the space utilization rate, so that the heat dissipation structure is more compact, and the heat dissipation efficiency is effectively improved.

Drawings

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of another embodiment of the present invention;

Fig. 3 is a schematic view of the structure of the heat dissipation fin of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 and fig. 2, a form high-efficient aluminium fin radiator diverges, including radiating basal plate 1 and radiating fin 2, radiating basal plate 1 can be simultaneously for straight plate-like, be convenient for be connected with various car headlight light source bodies, ensure face in close contact with, make the heat can transmit to the radiator side fast, the another side also can be for straight plate-like or the cross-section is the hemisphere of bad arcuation, compare in traditional radiating fin's straight arrangement mode, under the condition of the same radiating basal plate 1 size, the utility model discloses can great increase radiating fin 2's quantity. Further, the heat dissipation substrate 1 and the heat dissipation fins 2 are integrally formed, so that heat can be quickly transferred from the heat dissipation substrate 1 to the tops of the fins, and heat transfer resistance is reduced. The radiating fins 2 extend outwards along the radial direction, and the radiating fins 2 are arranged in a divergent mode, so that the distance between the adjacent fins is gradually increased along the radial direction, and compared with the traditional equal-distance arrangement mode, the radiating fins can be favorable for the heat convection of air.

as shown in fig. 3, the thickness of the root of the heat dissipation fin 2 from the top is gradually reduced, which not only reduces the weight and cost of the heat sink, but also increases the thickness of the root of the heat dissipation fin 2 to improve the temperature difference between the heat dissipation fin 2 and the air, thereby further improving the heat exchange efficiency. The length of the radiating fin 2 is determined by the size of the heat source and the radiating space, and is generally 50-100 mm. The height of the corrugated protrusion arranged on the surface of the radiating fin 2 along the direction from the root part to the top part of the fin is less than or equal to 5mm, namely the distance between the end point of the outer end of the protrusion and the surface of the fin is less than or equal to 5mm, so that the air disturbance is favorably enhanced, and the radiating capacity is improved.

Claims

1. A divergent efficient aluminum fin radiator comprises a radiating base plate (1) and radiating fins (2), wherein the radiating base plate (1) and the radiating fins (2) are integrally processed and formed; the method is characterized in that: the heat dissipation substrate (1) is a rectangular flat plate with two planar sides, one surface of the heat dissipation substrate is a flat plate, and the other surface of the heat dissipation substrate is a hemisphere with a cross section in an inferior arc shape; the radiating fins (2) extend outwards along the radial direction in a divergent shape, the distance is gradually increased, and the thickness of the radiating fins (2) is gradually reduced from the root to the top; the length of the radiating fin (2) is determined by the size of a heat source and a radiating space, and is generally 50-100 mm.

2. A divergent high efficiency aluminum finned heat sink as claimed in claim 1 wherein: the height of the corrugated bulges arranged on the surface of the radiating fin (2) along the direction from the root to the top of the fin is less than or equal to 5 mm.