Copper cooling plate with multiple heat dissipation ways

Abstract

The utility model discloses a copper cold plate with multiple heat dissipation ways, which relates to the technical field of cooling parts, and comprises a copper cold plate main body, a plurality of heat dissipation fins are formed on the outer surface of the copper cold plate main body, the plurality of heat dissipation fins are arranged at intervals along a direction or along a path, and the plurality of heat dissipation fins comprise a plurality of first heat dissipation fins and a plurality of second heat dissipation fins; the thickness of the first cooling fin is larger than that of the second cooling fin, a containing cavity is formed in the first cooling fin, the containing cavity is filled with a thermally induced phase change piece, the first cooling fin with the larger thickness can better resist the situation that the cooling fin is bent when subjected to external force, and the second cooling fin with the smaller thickness can better conduct heat dissipation. When the heating component generates high heat, on one hand, heat dissipation can be continuously carried out through the cooling fins, and on the other hand, a large amount of latent heat can be absorbed in the phase change process of the thermally induced phase change part, so that rapid rising of the temperature of the heating component is effectively slowed down, and the duration of continuous high temperature of the heating component is effectively shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling piece technical field especially, relates to copper cold plate with multiple heat dissipation ways. BACKGROUND

[0002] The use rate of copper cold plate is higher in high-end heat dissipation scheme, and it has the heat dissipation efficiency that is obviously superior to aluminum cold plate. At present, in the heat dissipation design of CPU, GPU and other electric components, mainly rely on copper cold plate and CPU, GPU and other electric components contact, and by the heat dissipation fin on copper cold plate carries out heat dissipation. Or with the help of liquid cooling system, the heat on CPU, GPU and other electric components is taken to copper cold plate by cooling liquid, and then the heat dissipation fin on copper cold plate carries out heat dissipation.

[0003] Although the heat dissipation fan is also configured in most heat dissipation schemes to improve the heat dissipation effect of copper cold plate, for part of the electric components that will occasionally produce high heat, such as when processing large memory task, the temperature of electric component will quickly rise, and the heat dissipation effect brought by the heat dissipation mode of increasing the heat dissipation area of the heat dissipation fin on copper cold plate is limited.

[0004] When the temperature of electric component slowly rises, its adaptability is good, but when high heat is generated, the temperature of electric component is prone to rapidly rise and continuously high temperature due to not timely heat dissipation, accordingly, the performance of electric component is prone to reduce or be damaged. INVENTION CONTENTS

[0005] The utility model aims at providing a copper cold plate with multiple heat dissipation ways, which can provide continuous heat dissipation and absorption capacity for the applied electric components and better heat dissipation and absorption capacity when the electric components generate high heat.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: copper cold plate with multiple heat dissipation ways, including copper cold plate main part, the outer surface of copper cold plate main part is formed with multiple heat dissipation fins, multiple heat dissipation fins are arranged along a direction interval or along a path interval, multiple heat dissipation fins include multiple first heat dissipation fins and multiple second heat dissipation fins;The thickness of first heat dissipation fin is greater than the thickness of second heat dissipation fin, and the inside of first heat dissipation fin is formed with accommodating cavity, and the accommodating cavity is filled with heat-induced phase change piece.

[0007] As a further scheme of the utility model: the inside of copper cold plate main part is provided with liquid cooling pipeline, and the outside of copper cold plate main part is provided with liquid inlet and liquid outlet that are communicated with liquid cooling pipeline.

[0008] As a further scheme of the utility model: multiple heat dissipation fins are arranged along a path interval, and the path is the setting path of liquid cooling pipeline or the part setting path of liquid cooling pipeline.

[0009] As a further scheme of the utility model: in the interval setting of multiple heat dissipation sheets, the first heat dissipation sheet and the second heat dissipation sheet are mutually staggered, the resistance of the first heat dissipation sheet can provide better protection for the second heat dissipation sheet, so that the bending resistance of the whole heat dissipation sheet is improved.

[0010] As a further scheme of the utility model: in the interval setting of multiple heat dissipation sheets, the first heat dissipation sheet and the second heat dissipation sheet are mutually staggered, the resistance of the first heat dissipation sheet can provide better protection for the second heat dissipation sheet, so that the bending resistance of the whole heat dissipation sheet is improved.

[0011] As a further scheme of the utility model: the phase transition temperature of the thermal phase change member is greater than 39 DEG C.

[0012] As a further scheme of the utility model: the material of the thermal phase change member is oil sludge, and the phase transition temperature of the thermal phase change member is between 40 DEG C and 60 DEG C.

[0013] As a further scheme of the utility model: the material of the thermal phase change member is paraffin, and the phase transition temperature is between 50 DEG C and 70 DEG C.

[0014] As a further scheme of the utility model: the first heat dissipation sheet is provided with a filling opening communicated with the accommodating cavity, and a sealing cover matched with the filling opening is further sealingly connected to the first heat dissipation sheet.

[0015] Compared with the prior art, the beneficial effects of the technical scheme are that the first heat dissipation sheet with greater thickness can better resist the bending of the heat dissipation sheet when the heat dissipation sheet is subjected to external force, and the second heat dissipation sheet with smaller thickness can better dissipate heat, that is, on the one hand, the heat dissipation efficiency can be ensured by the thinner second heat dissipation sheet, and on the other hand, the bending resistance of the heat dissipation sheet can be increased by the thicker first heat dissipation sheet.

[0016] When the heat generating component generates high heat, on the one hand, the heat dissipation sheet can continuously dissipate heat, and on the other hand, a large amount of latent heat can be absorbed in the phase transition process of the thermal phase change member, so that a large heat shock can be withstood in a short time, so as to effectively slow down the rapid rise of the temperature of the heat generating component, and effectively reduce the duration of the continuous high temperature of the heat generating component.

[0017] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0019] Figure 1 is a structural perspective view of the utility model;

[0020] Figure 2 is another structural perspective view of the utility model, which is not installed with a sealing cover.

[0021] The corresponding label in the drawing is explained as follows:

[0022] Copper cold plate body-1, first fin-2, second fin-3, thermal phase change component-4, liquid cooling pipeline-101, liquid inlet-102, liquid outlet-103, containing cavity-104, sealing cover-105. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-2 , the copper cold plate with multiple heat dissipation approaches comprises a copper cold plate body 1.

[0025] The copper cold plate body 1 can directly dissipate heat from the heat generating component (such as the above-mentioned electrical component), for example, directly contact the heat generating component to increase the heat dissipation area of the copper cold plate body 1.

[0026] The copper cold plate body 1 can indirectly dissipate heat from the heat generating component, for example, configure a liquid cooling system for the heat generating component. The copper cold plate body 1 is internally provided with a liquid cooling pipeline 101, and the copper cold plate body 1 is externally provided with a liquid inlet 102 and a liquid outlet 103 which are in communication with the liquid cooling pipeline 101. After the cooling liquid of the liquid cooling system absorbs heat from the heat generating component to reduce the temperature, the cooling liquid continues to flow to the liquid cooling pipeline 101 of the copper cold plate body 1 to transfer the heat in the cooling liquid to the copper cold plate body 1 for rapid heat dissipation.

[0027] In the embodiment, multiple fins are formed on the outer surface of the copper cold plate body 1 to increase the heat dissipation area of the copper cold plate as a whole and increase the heat dissipation efficiency.

[0028] The multiple fins are arranged at intervals along a direction or along a path. The multiple fins comprise multiple first fins 2 and multiple second fins 3. In the interval arrangement of the multiple fins, the first fins 2 and the second fins 3 are arranged in mutual staggered positions.

[0029] As Figure 1As shown, in the embodiment, when the plurality of fins (the first fins 2 and the second fins 3) are arranged at intervals along a path, the path can be a path of the liquid cooling pipe 101 or a part of the path of the liquid cooling pipe 101.

[0030] In the embodiment, the thickness of the first fins 2 is greater than the thickness of the second fins 3. The first fins 2 with greater thickness can better resist the bending of the fins when the fins are subjected to external force, and the second fins 3 with smaller thickness can better dissipate heat, that is, on the one hand, the heat dissipation efficiency can be ensured by the thinner second fins 3, and on the other hand, the bending resistance of the fins can be increased by the thicker first fins 2, and by the mutual staggered arrangement of the first fins 2 and the second fins 3, the first fins 2 can provide better protection for the second fins 3, so that the bending resistance of the fins as a whole is improved.

[0031] In some embodiments, the number of the first fins 2 is close to or the same as the number of the second fins 3.

[0032] As in any plurality of fins arranged at intervals, the difference between the number of the first fins 2 and the number of the second fins 3 is kept within 1, that is, the difference is ≤1.

[0033] In the embodiment, the first fins 2 are internally formed with accommodating cavities 104, and the accommodating cavities 104 are filled with the thermal phase change members 4. When the heat generating component generates high heat, on the one hand, the fins (the first fins 2 and the second fins 3) can continuously dissipate heat, and on the other hand, when the thermal phase change members 4 are subjected to phase change due to high heat, a large amount of latent heat can be absorbed in the phase change process of the thermal phase change members 4, so that a large amount of heat shock can be withstood in a short time, so as to effectively slow down the rapid rise of the temperature of the heat generating component and effectively reduce the duration of the continuous high temperature of the heat generating component.

[0034] Preferably, the phase change temperature of the thermal phase change member 4 is greater than 39℃.

[0035] Preferably, the thermal phase change member 4 is made of a phase change material with low corrosion degree to the copper cold plate body.

[0036] In some embodiments, the thermal phase change member 4 is made of oil sludge, the composition of the oil sludge is talcum powder 62%, vaseline 30%, and industrial wax 8%, and the phase change temperature thereof is between 40℃ and 60℃.

[0037] In some embodiments, the thermal phase change member 4 is made of paraffin wax, and the phase change temperature thereof is between 50℃ and 70℃.

[0038] In some embodiments, the outer side of the first heat dissipation fin 2 is provided with a filling opening in communication with the accommodating cavity 104, and the first heat dissipation fin 2 is further sealed connected with a sealing cover 105 matched with the filling opening.

[0039] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

Claims

1. A copper cold plate having multiple heat dissipation pathways, comprising a copper cold plate body, characterized in that, The outer surface of the copper cold plate body is formed with a plurality of fins, which are arranged at intervals along a direction or along a path, and the plurality of fins include a plurality of first fins and a plurality of second fins; The thickness of the first fins is greater than that of the second fins, and the inner part of the first fins is formed with a receiving cavity, which is filled with a thermally induced phase change element.

2. The copper cold plate with multiple heat dissipation paths of claim 1, wherein, The inner part of the copper cold plate body is provided with a liquid cooling pipe, and the outer part of the copper cold plate body is provided with a liquid inlet and a liquid outlet which are in communication with the liquid cooling pipe.

3. The copper cold plate with multiple heat dissipation paths of claim 2, wherein, The plurality of fins are arranged at intervals along a path, which is the setting path of the liquid cooling pipe or a part of the setting path of the liquid cooling pipe.

4. The copper cold plate with multiple heat dissipation paths according to any one of claims 1-3, characterized in that, In the interval arrangement of the plurality of fins, the first fins and the second fins are arranged in a staggered manner.

5. The copper cold plate with multiple heat dissipation pathways of claim 4, wherein, In any continuously arranged plurality of fins, the number difference between the first fins and the second fins is kept within 1 piece.

6. The copper cold plate with multiple heat dissipation paths according to claim 1 or 2 or 3 or 5, characterized in that, The phase change temperature of the thermally induced phase change element is greater than 39℃.

7. The copper cold plate with multiple heat dissipation pathways of claim 6, wherein, The material of the thermally induced phase change element is oil sludge, and the phase change temperature of the thermally induced phase change element is between 40℃ and 60℃.

8. The copper cold plate with multiple heat dissipation pathways of claim 6, wherein, The material of the thermally induced phase change element is paraffin, and the phase change temperature is between 50℃ and 70℃.

9. The copper cold plate with multiple heat dissipation paths of claim 1 or 2 or 3 or 5 or 7 or 8, wherein, The outer side of the first fin is provided with a filling port in communication with the receiving cavity, and the first fin is further sealed with a sealing cover matched with the filling port.

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