CN201601941U

CN201601941U - Plate-fin welding electronic cold-plate

Info

Publication number: CN201601941U
Application number: CN2010201092065U
Authority: CN
Inventors: 谷操; 姜红霞; 芦柯京; 董庆丽; 王凝岚
Original assignee: China North Vehicle Research Institute
Current assignee: China North Vehicle Research Institute
Priority date: 2010-02-05
Filing date: 2010-02-05
Publication date: 2010-10-06
Anticipated expiration: 2020-02-05

Abstract

The utility model relates to a plate-fin welding electronic cold-plate, in particular to a heat dissipating device of a liquid electronic component with a fin in the inner part. The plate-fin welding electronic cod-plate comprises side protecting plates and a fin, the fin is arranged between the two side protecting plates; a separating plate is arranged between the side protecting plate and the fin; the positive/negative surfaces are provided with flux layers; the cross section of the fin is of a sine wave shape; a water inlet and a water outlet are installed between the two side protecting plates. The plate-fin welding electronic cold-plate adopts the cold plate with a hollow heat-dissipating body, increases the area of heat dissipating, so as to ensure the work of the electronic components under suitable temperature. The plate-fin welding electronic cold-plate overcomes shortcomings of the prior art, has features of good integration, stable running, and high heat-exchanging efficiency.

Description

A kind of plate-fin solder type electronics cold drawing

Technical field

The utility model relates to a kind of heat abstractor, is specifically related to the electronic devices and components liquid heat radiating device that a kind of inside has fin.

Background technology

Electronic devices and components the time can produce certain heat in work, and himself temperature is constantly raise.And electronic devices and components need be worked under the uniform temperature condition, and too high or too low temperature all will influence the performance of electronic devices and components, even cause the damage of components and parts, therefore, need be equipped with suitable heat abstractor for electronic devices and components.

The heat dissipation technology of electronic devices and components mainly contains air-cooled technology and liquid cools technology two big classes at present.Air-cooled technology is present most widely used electronics cooling technology, comprises free convection air-cooled technology and forced convertion air-cooled technology.The free convection air-cooled technology is mainly used in the less electronic device of volume heating power.For the bigger electronic device of volume heating power, generally then take the forced convertion air-cooled technology.At present, the forced air-cooling radiator generally uses in conjunction with hot pipe technique, can strengthen the cooling capacity of air cooling technique, but there are between the little and radiator of effective heat transfer area problems such as the low and densification poor performance of bigger, the single heat transfer efficiency of thermal resistance in heat pipe, has influenced its application in the high power electronic device.Therefore the bigger electronic device of volume heating power also often adopts the liquid cools technology.

The utility model content

Low for solving in the prior art cooling electronic component device sensing efficient, the problem of structural behaviour difference, the utility model provides a kind of inside to have the cold drawing of radiating fin, it is big to have area of dissipation, compact conformation, the characteristics stable and heat exchange efficiency is high, concrete scheme is as follows: a kind of plate-fin solder type electronics cold drawing, comprise side guard plate and fin, fins set is contained between two blocks of side guard plates, it is characterized in that, be assembled with dividing plate between described side guard plate and the fin, the dividing plate positive and negative has welding flux layer, described fin cross sectional shape is a sine wave shape, between two blocks of side guard plates water inlet and delivery port is installed.

Another optimal way of the present utility model: described fin comprises fin a, fin b and fin c, fin a and fin b install side by side, fin c is installed in the end of fin a, fin b, and the mutual correspondence in cross section on fin a, fin c, the fin b is connected to form a plurality of passages.

Another optimal way of the present utility model: seal by strip of paper used for sealing around the described fin.

Another optimal way of the present utility model: separate by middle strip of paper used for sealing between described fin a and the fin b.

Another optimal way of the present utility model: there is the U-shaped fixing hole described side guard plate both sides, and bolt hole is arranged on the strip of paper used for sealing.

Another optimal way of the present utility model: the utility model adopts the cold drawing of aluminum plate-fin type, in the inside of cold drawing fin is arranged, and increases area of dissipation, improve liquid form, one side of cold drawing is a flat board, fully contacts with electronic devices and components, and the heat that electronic devices and components are produced imports cold drawing.There are parts such as fin and strip of paper used for sealing cold drawing inside, and the outside is provided with cooling water outlet and inlet, and heat eliminating medium flows into from import, flows through in cold drawing according to certain orientation, is flowed out by outlet, takes away heat.Work under suitable temperature to guarantee electronic devices and components.

Description of drawings

Fig. 1 the utility model structural representation

The A-A cutaway view of Fig. 2 Fig. 1

Strip of paper used for sealing, 7-strip of paper used for sealing, 8-water inlet, 9-delivery port, 10-U shape fixing hole, 11-bolt hole among 1-side guard plate, 2-dividing plate, 3-fin a, 4-fin b, 5-fin c, the 6-among the figure

Embodiment

As shown in Figure 1, the utility model comprises fin, side guard plate 1 and dividing plate 2, side guard plate 1 is divided into side guard plate and following side guard plate, dividing plate 2 is divided into upper spacer and lower clapboard, fin is divided into fin a3, fin b4 and fin c5, as shown in Figure 2, the cross sectional shape of fin is with sinusoidal wave identical, and each crest or trough all form the passage of heat eliminating medium.Upper spacer and lower clapboard have solder flux at positive and negative respectively, contact with following side guard plate with last side guard plate respectively, fin is between upper spacer and lower clapboard, on the fin, lower surface is sealed by dividing plate 2, fin a3 and side by side installation consistent with fin b4 shape, fin c5 is installed in fin a3, the end of fin b4, fin a3 after the installation, the continuous passage of sealing one by one that is welded into of fin b4 and the relative correspondence in the last sinusoidal wave cross section of fin c5, the other end at fin a3 and fin b4 has water inlet 8 and delivery port 9 respectively, utilize strip of paper used for sealing 7 sealings around the fin, strip of paper used for sealing 6 separated during fin a3 and fin b4 also utilized.Heat exchanger after assembling is placed under 500～600 ℃ the hot environment, and the solder melts on the dividing plate 2 is welded into side guard plate and fin the integral body of a sealing.

Have U-shaped fixing hole 10 in the both sides of side guard plate, on the strip of paper used for sealing 7 in the outside of a3 of wing place and fin b4, also have bolt hole 11.Heat exchanger can utilize U-shaped fixing hole 10 or bolt hole 11 to be fixed together with electronic devices and components.After heat exchanger after the installation, cooling water enter fin a3, fin c5 and fin b4 by water inlet 8, by delivery port 9 outflows of the fin b4 other end.

Claims

1. plate-fin solder type electronics cold drawing, comprise side guard plate (1) and fin, fins set is contained between two blocks of side guard plates, it is characterized in that, be assembled with dividing plate (2) between described side guard plate (1) and the fin, dividing plate (2) positive and negative has welding flux layer, and described fin cross sectional shape is a sine wave shape, and water inlet (8) and delivery port (9) are installed between two blocks of side guard plates.

2. a kind of plate-fin solder type electronics cold drawing as claimed in claim 1, it is characterized in that, described fin comprises fin a (3), fin b (4) and fin c (5), fin a (3) and fin b (4) install side by side, fin c (5) is installed in the end of fin a (3), fin b (4), and the mutual correspondence in cross section on fin a (3), fin c (5), the fin b (4) is connected to form a plurality of passages.

3. a kind of plate-fin solder type electronics cold drawing as claimed in claim 2 is characterized in that, is sealed by strip of paper used for sealing (7) around the described fin.

4. a kind of plate-fin solder type electronics cold drawing as claimed in claim 3 is characterized in that, is separated by middle strip of paper used for sealing (6) between described fin a (3) and the fin b (4).

5. a kind of plate-fin solder type electronics cold drawing as claimed in claim 4 is characterized in that there is U-shaped fixing hole (10) described side guard plate (1) both sides, and bolt hole (11) is arranged on the strip of paper used for sealing (7).