CN102548337A

CN102548337A - Liquid-cooled cooling plate with composite casting structure

Info

Publication number: CN102548337A
Application number: CN201010586772XA
Authority: CN
Inventors: 杨生海; 文朝; 郑新芬; 匡勇
Original assignee: No23 Institute Of No20 Academy Casic
Current assignee: No23 Institute Of No20 Academy Casic
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2012-07-04

Abstract

The invention discloses a liquid-cooled cooling plate with a composite casting structure, which comprises a cast aluminum alloy bottom plate (1), a coiler (2), a pipe joint A (4), a pipe joint B (5) and a pipeline (3). The coiler (2) is an 'M'-shaped seamless stainless steel pipe, the pipe joint A (4) and the pipe joint B (5) are stainless steel pipes, and the pipeline (3) is a straight stainless steel pipe with two end closed. The coiler (2), the pipe joint A (4), the pipe joint B (5) and the pipeline (3) are disposed in the cast aluminum alloy bottom plate (1) and are fixed with the same. During working of the liquid-cooled cooling plate, the cast aluminum alloy bottom plate (1) requires various electronic elements for heat radiation, coolant is injected from the pipe joint A (4), and then flows through the coiler (2) to be discharged from the pipe joint B (5) to a secondary cooling system for dissipating heat of the electronic elements. The heat radiation efficiency of the cooling plate is improved and corrosion of the coolant to cooling pipelines of the coiler of the cooling plate is avoided.

Description

A kind of liquid cold plate of composite casting structure

Technical field

The present invention relates to a kind of liquid cold plate, particularly a kind of liquid cold plate of composite casting structure.

Background technology

At present, the liquid cold plate kind that cooling heat dissipation is used has multiple version, comprising: aluminum alloy bottom plate groove milling pipe laying type, aluminum alloy bottom plate deep hole machining type mills pipeline welding type on the aluminum alloy bottom plate.The cold drawing of above-mentioned several kinds of forms has its characteristics separately, and it contacts and does not closely cause contact heat resistance relatively large aluminum alloy bottom plate groove milling pipe laying type because pipeline and base plate adopt the heat-conducting glue splicing; The anti-cooling agent corrosivity of aluminum alloy bottom plate deep hole machining type is relatively poor relatively, and receives the process equipment restriction cold drawing size can not be too big; Mill pipeline welding type on the base plate welding procedure and welding quality are required height, bearing capacity is less, the weld seam cooling agent seepage that causes easy to crack, and also its corrosion resistance is relatively poor relatively.

Summary of the invention

The object of the present invention is to provide a kind of liquid cold plate of composite casting structure, the contact heat resistance that solves liquid cold plate is big, the problem of weld cracking, anti-cooling agent corrosivity difference.

A kind of liquid cold plate of composite casting structure comprises: the Birmasil base plate also comprises: coil pipe, pipe joint A, pipe joint B and pipeline.

The Birmasil base plate is the matrix of liquid cold plate, is rectangular flat plate, and basis material is that Al-Si-Mg is a cast aluminium alloy, and coil pipe is " M " shape gapless stainless steel tube; Pipe joint A and pipe joint B are stainless steel tube, and pipeline is the stainless steel straight tube of closed at both ends.Coil pipe, pipe joint A, pipe joint B and pipeline place in the Birmasil base plate, and fix with the Birmasil base plate.Two ports of coil pipe are fixing with pipe joint A and pipe joint B welding respectively; The hickey of pipe joint A and pipe joint B is higher than the end face of Birmasil base plate; Pipe joint A is the cooling agent input interface; Pipe joint B is the cooling agent output interface, and three identical pipelines place " ∩ " of coil pipe " M " shape, the space of " ∪ " and " ∩ " respectively.

During liquid cold plate work; The various electronic devices and components that need heat radiation are arranged on the Birmasil base plate; From pipe joint A input cooling agent; Flowing through outputs to outside secondary cooling system from pipe joint B behind the coil pipe, and the secondary cooling system that so just takes most of caloric value of various electronic devices and components to outside carries out heat exchange once more, thereby various electronic devices and components are dispelled the heat; Pipeline does not have cooling agent when cold drawing is worked passes through, to alleviate the weight of cold drawing.

The present invention adopts said structure, and cooling agent is difficult for oozing dew, and coil pipe is connected relatively good with the fusion of Birmasil matrix, make contact heat resistance smaller, and the installation contact-making surface of electronic components of high power is smooth machined surface, has improved the radiating efficiency of cold drawing like this; Employing has the stainless-steel seamless pipe of stronger corrosion resistance and higher intensity and makes coil pipe, has solved the cooling line etching problem of cooling agent to the cold drawing coil pipe; Pipeline through using closed at both ends forms hollow enclosed construction, and the use amount of Birmasil basis material alleviates the weight of cold drawing when reducing composite casting, this pipeline coolant not when cold drawing is worked.

Description of drawings

The liquid cold plate structural representation of a kind of composite casting structure of Fig. 1;

The A of the liquid cold plate of a kind of composite casting structure of Fig. 2 is to cutaway view.

1. Birmasil base plate 2. coil pipes 3. pipelines 4. pipe joint A 5. pipe joint B

Embodiment

A kind of liquid cold plate of composite casting structure comprises: Birmasil base plate 1 also comprises: coil pipe 2, pipe joint A4, pipe joint B5 and pipeline 3.

Birmasil base plate 1 is the matrix of liquid cold plate, is rectangular flat plate, and basis material is that Al-Si-Mg is a cast aluminium alloy, and coil pipe 2 is " M " shape gapless stainless steel tube; Pipe joint A4 and pipe joint B5 are stainless steel tube, and pipeline 3 is the stainless steel straight tube of closed at both ends.Coil pipe 3, pipe joint A4, pipe joint B5 and pipeline 3 place in the Birmasil base plate 1, and fixing with Birmasil base plate 1.Two ports of coil pipe 2 are fixing with pipe joint A4 and pipe joint B5 welding respectively; The hickey of pipe joint A4 and pipe joint B5 is higher than the end face of Birmasil base plate 1; Pipe joint A4 is the cooling agent input interface; Pipe joint B5 is the cooling agent output interface, and three identical pipelines 3 place " ∩ " of coil pipe 2 " M " shape, the space of " ∪ " and " ∩ " respectively.

During liquid cold plate work; The various electronic devices and components that need heat radiation are arranged on the Birmasil base plate 1; From pipe joint A4 input cooling agent; Flow through coil pipe 2 backs from the secondary cooling system that pipe joint B5 outputs to the outside, so just take most of caloric value of various electronic devices and components to outside secondary cooling system and carry out heat exchange once more, thereby various electronic devices and components are dispelled the heat; Pipeline 3 does not have cooling agent when cold drawing is worked passes through, to alleviate the weight of cold drawing.

Claims

1. the liquid cold plate of a composite casting structure, comprising: Birmasil base plate (1) is characterized in that also comprising: coil pipe (2), pipe joint A (4), pipe joint B (5) and pipeline (3);

Birmasil base plate (1) is the matrix of liquid cold plate, is rectangular flat plate, and basis material is that Al-Si-Mg is a cast aluminium alloy, and coil pipe (2) is " M " shape gapless stainless steel tube; Pipe joint A (4) and pipe joint B (5) are stainless steel tube, and pipeline (3) is the stainless steel straight tube of closed at both ends; Coil pipe (3), pipe joint A (4), pipe joint B (5) and pipeline (3) place in the Birmasil base plate (1), and fixing with Birmasil base plate (1); Two ports of coil pipe (2) are fixing with pipe joint A (4) and pipe joint B (5) welding respectively; The hickey of pipe joint A (4) and pipe joint B (5) is higher than the end face of Birmasil base plate (1); Pipe joint A (4) is the cooling agent input interface; Pipe joint B (5) is the cooling agent output interface, and three identical pipelines (3) place " ∩ " of coil pipe (2) " M " shape, the space of " ∪ " and " ∩ " respectively;

During liquid cold plate work; The various electronic devices and components that need heat radiation are arranged on the Birmasil base plate (1); From pipe joint A (4) input cooling agent; Flow through coil pipe (2) back from the secondary cooling system that pipe joint B (5) outputs to the outside, so just take most of caloric value of various electronic devices and components to outside secondary cooling system and carry out heat exchange once more, thereby various electronic devices and components are dispelled the heat; Pipeline (3) does not have cooling agent when cold drawing is worked passes through, to alleviate the weight of cold drawing.