CN2639834Y

CN2639834Y - Heat dissipating device

Info

Publication number: CN2639834Y
Application number: CN 03206120
Authority: CN
Inventors: 王化国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-23
Filing date: 2003-07-23
Publication date: 2004-09-08
Anticipated expiration: 2013-07-23

Abstract

The utility model relates to a radiating device, which can change the own shape automatically according to the radiation requirement. The device comprises a fixed metal block and a deformation radiating fin. The fixed metal block is made of copper which has good thermal conductivity and is connected with the heating element closely. The deformation radiating fin is made of different materials which have different heating expansion coefficients and is fixed on the fixed metal block. The device is simple in structure and needs no manual operation. Because the device can change the own shape automatically according to the radiation requirement, the device is particularly suitable to the radiating requirements in different conditions. When the temperature is low or normal, the device can conserve heat while the temperature is high, the device can radiate heat well, and the higher the temperature is the better the radiating effect is. Thus, the device is particularly suitable to the radiating parts with ever changing conditions.

Description

A kind of heat abstractor

Technical field

The utility model relates to a kind of heat abstractor, particularly a kind of heat abstractor that changes self shape according to the heat radiation needs automatically.

Background technology

At present, the kind and the shape of fin are a lot, its common ground is: in case after producer's design is determined, its shape is just determined, for example, the fin on the fin of the fin of motor casing, motorcycle cylinder baffle, radiator surface etc. all determine that by producer's design this design has tangible deficiency.Now be that example describes, when motorcycle initiating, need warm-up the engine, do not need heat radiation with the motorcycle, but the fin that design is determined, as long as the temperature of the projecting air of temperature of fin, heat radiation has prolonged preheating time just carrying out.When the motorcycle high power work, as climbing, travelling on the poor especially road surface of road conditions, at this moment a large amount of heat of engine generation need in time dissipate, and makes engine temperature too high, and insufficient lubrication easily produces sudden and violent cylinder phenomenon.Thereby work under the different operating modes needs of heat radiation of motorcycle are different, so the heat radiation needs of motorcycle under different operating modes are not satisfied in the design of existing fin.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of needs to change the heat abstractor of self shape automatically according to heat radiation, this device is good heat dissipation effect not only, need not artificial adjustment, and simple in structure, reliable operation, can also remove mud on the fin etc. automatically.

The purpose of this utility model is achieved in that this device comprises: fixing metal piece, distortion fin two parts are formed.Said fixing metal piece is to be made by the copper product of good heat conductivity, closely links to each other with heater; Said distortion fin is to be made by the different material of expanded by heating coefficient, and the distortion fin is fixed on the fixing metal piece.

The utility model simple structure is used to need not manual operation, because of it can change self shape automatically according to the needs of heat radiation, is particularly suitable for the heat radiation needs under the different operating modes.Under low temperature and normal temperature, play insulation effect; At high temperature, play better heat radiating effect, and temperature is high more, radiating effect is good more.Be specially adapted to the thermal component heat radiation that operating mode often changes.

Description of drawings

Fig. 1 is the structural representation under the utility model normal temperature;

Fig. 2 is the structural representation under the utility model high temperature.

The specific embodiment

With reference to the accompanying drawings, this device has a fixing metal piece 2, is fixed on the heater 1, and distortion fin 3 is housed on the fixing metal piece 2.

This device at normal temperatures, shape as shown in Figure 1, distortion fin 3 shape that is in line, a large amount of distortion fin 3 are lined up a plane, heater 1 and air are separated, hinder cross-ventilation, play insulation effect, rising along with the heater temperature, heat transferred distortion fin 3, distortion fin 3 is heated outwardly-bent heat through the good fixing metal piece 2 of heat conductivility, and heater 1 is fully contacted with outside air with distortion fin 3, violent increasing area of dissipation, reached the purpose that distortion fin 3 and heater 1 dispel the heat simultaneously, temperature is high more, and 3 bendings of distortion fin are obvious more, far away more from heater, radiating effect is good more.Shape because the 3 frequent flexural deformations of distortion fin can be removed this mud on one's body etc. certainly, more helps strengthening heat radiation as shown in Figure 2 in addition.

Claims

1. a heat abstractor is characterized in that, this device has a fixing metal piece (2), is fixed on the heater (1), and distortion fin (3) is housed on the fixing metal piece (2).