CN205537270U - Cooling fin - Google Patents

Abstract

The utility model relates to a cooling fin produces technical field, and concretely relates to cooling fin, this cooling fin include the heat -conducting plate and install the fin on the heat -conducting plate, characterized by: the fin be that the polylith alternates the aluminium foil on the connecting piece, aluminium foil downside arcuation becomes the bend plane, form the bend plane welding on the heat -conducting plate with welding process, the thickness of fin is less than 0.3 millimeter, such fin has light in weight, with low costs, efficient advantage.

Description

A kind of fin

Technical field

This utility model relates to fin production technical field, concretely relates to manufacture method and the heat radiation of fin Sheet.

Background technology

Fin includes the heat-conducting plate of heat transfer, also has multiple fins be arrangeding in parallel on heat-conducting plate；In prior art, dissipate Backing is that extruding is one-time formed, i.e. heat-conducting plate and fin is all extrusion, and one-shot forming, due to the restriction of technique, fin Thickness have certain restriction, it is impossible to the thinnest, such as can not be less than 0.5 millimeter, so, the thickness of fin fin just has relatively Big size, causes the shortcoming that fin weight is big, cost is high；Meanwhile, the fin of thicker size also limit on heat-conducting plate The quantity of fin, have impact on the efficiency of fin.

Utility model content

The purpose of this utility model is aiming at disadvantages mentioned above, it is provided that a kind of product weight produced is light, low cost, effect The manufacture method of the fin that rate is high, also provides for a kind of such fin.

Manufacture method of the present utility model is such that the manufacture method of a kind of fin, comprises the following steps:

A, aluminium foil being cut into rectangular structure, and bend side, Formation cross-section is the structure of " L " type, and sweep is Flexure plane, the part of bending useless is referred to as aluminium foil main body, and the width of sweep is 12 millimeters；

Punching in the middle of b, the aluminium foil main body will made in above-mentioned steps a, interts successively with connector in the hole of multi-disc aluminium foil Connecting, have interval between adjacent aluminium foil, the flexure plane below multiple " L " type aluminium foil forms solder side；

C, solder side is welded on above heat-conducting plate, the fin described in formation.

Saying further, the thickness of described aluminium foil is less than 0.3 millimeter.

Saying further, the welding described in step c is Al-brazing Process welding.

Saying further, the welding in step c is to carry out welding under the protection of noble gas.

Saying further, the angle of described flexure plane and aluminium foil main body is 94 96 °.

Saying further, the connector described in step b refers to heat pipe.

The technical scheme of fin of the present utility model is achieved in that fin, leads with being arranged on including heat-conducting plate Fin on hot plate, is characterized in that: described fin is the aluminium foil that polylith is interspersed on connector, Curved embayment on the downside of aluminium foil Curved surface, is welded on heat-conducting plate formation by welding procedure by flexure plane, and the thickness of described fin is less than 0.3 millimeter.

Saying further, described connector is heat pipe.

The beneficial effects of the utility model are: can produce, by such technique, the fin that fin is the thinnest, reach joint Material saving, reduction cost, the purpose of raising product radiating efficiency；

The thickness of described aluminium foil is less than 0.3 millimeter, more can realize the purpose of this utility model；

Welding described in step c is Al-brazing Process welding, packaging firm welding, economy, durable；

The angle of described flexure plane and aluminium foil main body is 94 96 °, it is ensured that multiple aluminium foils weld when flexure plane stacks It is connected on heat-conducting plate, reaches the effect of firm welding；

Connector described in step b refers to heat pipe, decrease follow-up in additionally mounted heat pipe, this heat pipe is also Play and connect the effect that aluminium foil carries out positioning；

Such fin has advantage lightweight, that low cost, efficiency are high.

Accompanying drawing explanation

Fig. 1 is the structural representation being cut into aluminium foil.

Fig. 2 is the structural representation of aluminium foil bending.

Fig. 3 is that multiple aluminium foil interts the schematic diagram of connector.

The cross section structure schematic diagram of the fin that Fig. 4 is formed into.

Wherein: 1, aluminium foil 2, flexure plane 3, aluminium foil main body 4, hole 5, connector 6, solder side 7, heat-conducting plate 8, weldering Stannum.

α flexure plane and the angle of aluminium foil main body.

Detailed description of the invention

Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.

Material therefor aluminium foil, heat-conducting plate, connector, aluminium soldering instrument and consumptive material etc..

The manufacture method of a kind of fin, comprises the following steps:

A, aluminium foil 1 being cut into rectangular structure, and bend side, Formation cross-section is the structure of " L " type, and sweep is Flexure plane 2, the part of bending useless is referred to as aluminium foil main body 3, and the width of sweep is 12 millimeters, as shown in Figure 1, 2；

Punching in the middle of b, the aluminium foil main body will made in above-mentioned steps a, in figure, 4 represent hole, intert many successively with connector 5 Connecting in the hole 4 of sheet aluminium foil, have interval between adjacent aluminium foil, the flexure plane below multiple " L " type aluminium foil forms solder side 6, As shown in Figure 3；

C, being welded on by solder side above heat-conducting plate 7, the fin described in formation, as shown in Figure 4,8 represent scolding tin.

Saying further, the thickness of described aluminium foil is less than 0.3 millimeter.

Saying further, the welding described in step c is Al-brazing Process welding.

Saying further, the welding in step c is to carry out welding under the protection of noble gas.

Saying further, the angle α of described flexure plane and aluminium foil main body is 94 96 °.

Saying further, the connector described in step b refers to heat pipe.

The technical scheme of fin of the present utility model is achieved in that as shown in Figure 4, fin, including heat-conducting plate 7 Fin with being arranged on heat-conducting plate, is characterized in that: described fin is that polylith is interspersed on connector 5, lateral bending under aluminium foil Curved one-tenth flexure plane 2, is welded on heat-conducting plate 7 formation by welding procedure by flexure plane 2, and the thickness of described fin is less than 0.3 Millimeter.

Saying further, described connector is heat pipe.

The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model be not limited to this, Any those skilled in the art is in field of the present utility model, and change or the modification made all are contained of the present utility model In the scope of the claims.

Claims (2)

1. fin, including heat-conducting plate and the fin being arranged on heat-conducting plate, is characterized in that: described fin is that polylith is interspersed in Aluminium foil on connector, is bent to form flexure plane on the downside of aluminium foil, be welded on heat-conducting plate by flexure plane by welding procedure and to be formed, The thickness of described fin is less than 0.3 millimeter.

Fin the most according to claim 1, is characterized in that: described connector is heat pipe.