CN201396725Y

CN201396725Y - Fin type radiator

Info

Publication number: CN201396725Y
Application number: CN2009200581042U
Authority: CN
Inventors: 田志军
Original assignee: 陈建胜
Priority date: 2009-06-09
Filing date: 2009-06-09
Publication date: 2010-02-03
Anticipated expiration: 2019-06-09

Abstract

The utility model relates to a fin type radiator, comprising a substrate and a plurality of fins which are vertical to the substrate and arranged in parallel with each other, arc processes are arranged on the side face of the fins. The design can increase the heat radiating area of the fins adequately and effectively, and improve the heat radiating rate. In order to resolve the problem that dust is accumulated on the fins during the using course of the radiator, the upper margin of the arc process is an inclined plane which is inclined downwards. Compared with the prior art, the utility modelincreases the heat radiating area of a lamp body in higher degree, meanwhile the upper margin of the wave process is designed to be a slope, the problem that the dust is accumulated on the fins duringthe using course of the radiator is resolved, thereby the heat generation efficiency and the service life are improved.

Description

A kind of finned radiator

Technical field

The utility model relates to the radiator field, particularly a kind of finned radiator at the LED street lamp.

Background technology

The radiating principle of radiator is three kinds of basic transfer modes according to heat: conduction, convection current and radiation, radiator has particularly generally been taked conduction pattern at the radiator of electronic device, the heat that produces when utilizing the heat conduction that electronic device is worked is delivered on the aluminium step by step, and then heat is delivered in the ambient air.Traditional LED street lamp heat radiator adopts the traditional heat-dissipating fin structure, radiating fin is for facing type directly, the heat that produces during the work of LED street lamp passes on the fin of aluminium, heat is being delivered in the ambient air, because existing radiation fin structure can not effectively increase area of dissipation, so radiating effect is undesirable.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, designs a kind ofly can effectively increase area of dissipation, the finned radiator that radiating efficiency is high.

In order to realize above-mentioned technical purpose, the utility model comprises following technical characterictic: a kind of finned radiator comprises substrate and perpendicular to substrate and some fin of being arranged in parallel, the side of fin is provided with arc-shaped protrusions.Arc-shaped protrusions can fully effectively increase the area of dissipation of fin, has improved rate of heat dissipation.

According to different heat radiation needs, described fin is a sheet, or is column.

Dust is to the accumulation problem of fin in the use in order to solve, and the upper limb of described arc-shaped protrusions is an inclined downward.

In order to increase area of dissipation to greatest extent, described arc-shaped protrusions is continuous arc-shaped protrusions.

In order to improve the stability of fin, the link of described fin and substrate is provided with firm piece.

Further increase radiating surface, described fin is provided with the branch projection.

The convenience of processing, the arc-shaped protrusions on the described side is symmetrical arranged.

Further, described fin height is 15mm-55mm; The maximum of fin width is 4mm-5.5mm, and the minimum of a value of fin width is 1.5mm-3mm; The spacing of described fin is 12mm-15mm.

The utility model has compared with prior art adopted the side to be provided with the design of waveform projection, has increased the area of dissipation of lamp body greatly, and the inclined design of wave projection upper limb has simultaneously solved in the use dust to the accumulation problem of fin.Because the architecture advances of this radiator, can be effectively with electrical equipment, be delivered in the ambient air as the heat of LED street lamp, reducing the junction temperature of LED street lamp, thereby effectively reduce the light decay of LED, the heating efficiency and the service life of improving light fixture.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the enlarged diagram at A place among Fig. 1.

The specific embodiment

As Fig. 1 structural representation of the present utility model.The utility model relates to a kind of finned radiator, and more particularly at the heat radiation of LED road lamp and the design of carrying out, but the utility model can be widely used in the heat radiation of various electrical equipment.For the convenience that illustrates, existing is example with the LED street lamp, and the specific embodiment of this utility model is described.

As shown in Figure 1, the utility model comprises substrate 1, LED lamp body 2, several cooling fins 3; Fin 3 is tabularly also can be column.This sentences the tabular example that is, 3 of fin are parallel to each other and are vertical with substrate 1.For the more effective increase lamp body area of dissipation of energy, the side of fin 3 is provided with arc-shaped protrusions 41.Described fin 3 is a sheet, also can be column.As shown in Figure 2, in order to be placed on the dust accumulation, the upper limb 42 of arc-shaped protrusions 41 is an inclined downward.

For easy to process, described arc-shaped protrusions 41 is continuous arc-shaped protrusions.Fin 3 is provided with firm piece 43 with the link of substrate 1, and the shape of fixed block 43 does not limit, and its objective is the contact-making surface that increases fin 3 and substrate 1.Further, in order to increase area of dissipation, described fin 3 is provided with branch projection 44.

With fin 3 is that sheet is an example, and the arc-shaped protrusions 41 on fin 3 sides is the axial symmetry setting with the center line of fin 3.Fin (3) highly is 15mm-55mm; The maximum of fin (3) width is 4mm-5.5mm, and the minimum of a value of fin (3) width is 1.5mm-3mm; The spacing of described fin (3) is 12mm-15mm.

Substrate 1 and fin 3 adopts higher common used material such as aluminium alloy or the copper alloy of thermal conductivities, considers cost of goods manufactured and moulding process, and the form that the aluminium alloy is squeezed into section bar secondary operations again becomes the lamp body part.

Claims

1, a kind of finned radiator comprises substrate (1) and perpendicular to substrate (1) and some fin (3) of being arranged in parallel, it is characterized in that: the side of fin (3) is provided with arc-shaped protrusions (41).

2, finned radiator according to claim 1 is characterized in that: described fin (3) is a sheet.

3, finned radiator according to claim 1 is characterized in that: described fin (3) is a column.

4, according to each described finned radiator of claim 1～3, it is characterized in that: the upper limb (42) of described arc-shaped protrusions (41) is inclined downward.

5, finned radiator according to claim 4 is characterized in that: described arc-shaped protrusions (41) is continuous arc-shaped protrusions.

6, finned radiator according to claim 5 is characterized in that: described fin (3) is provided with firm piece (43) with the link of substrate (1).

7, finned radiator according to claim 6 is characterized in that: described fin (3) is provided with branch projection (44).

8, finned radiator according to claim 2 is characterized in that: the arc-shaped protrusions on the described side (41) is symmetrical arranged.

9, finned radiator according to claim 8 is characterized in that: described fin (3) highly is 15mm-55mm; The maximum of fin (3) width is 4mm-5.5mm, and the minimum of a value of fin (3) width is 1.5mm-3mm; The spacing of described fin (3) is 12mm-15mm.