High-efficiency uniform-temperature plate

Abstract

The utility model relates to the technical field of temperature uniformizing plates, in particular to a high-efficiency temperature uniformizing plate, which comprises a temperature uniformizing plate body (100) which is divided into a first heat dissipation area (100a), a second heat dissipation area (100b) and a third heat dissipation area (100c). Wherein a plurality of heat conduction pipes (200) are arranged in the first heat dissipation area (100a); a first confluence channel (300) is arranged between the first heat dissipation area (100a) and the second heat dissipation area (100b) in the length direction, and a second confluence channel (400) is arranged in the first heat dissipation area (100a) and the third heat dissipation area (100c) in the length direction. The heat conduction pipes, the first confluence channel and the second confluence channel are arranged in the uniform temperature plate, the heat conduction pipes are additionally arranged, the heat dissipation modes are diversified, the heat dissipation efficiency is improved, the flow guide structure is additionally arranged, cooling liquid can rapidly and circularly flow, and the heat dissipation capacity of the uniform temperature plate is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipes, in particular to a high-performance heat pipe. Background Art

[0002] According to the modern requirements, computers and various electronic devices have developed rapidly and their performance has been continuously improved. However, during this process, the heat dissipation problem brought by high-performance hardware has also emerged. Generally speaking, computers and various electronic devices usually use heat dissipation components to dissipate heat. For example, heat dissipation paste or heat sinks are used to attach to the electronic components to be cooled, so as to suck out and dissipate the heat. However, this heat dissipation method has limited effect, so heat dissipation components that use the phase change of working fluid to promote heat conduction have been developed.

[0003] The Chinese utility model patent with the publication number of CN212006864U discloses a high-performance heat pipe, which includes a cover plate and a bottom plate with pits. A porous capillary structure is arranged between the cover plate and the bottom plate. One end of the inner wall of the cover plate is provided with a first groove, and one end of the inner wall of the bottom plate is provided with a second groove. A vacuum pumping / liquid injection tube is fixed in the first groove and the second groove. The cover plate and the bottom plate are both made by stamping; several support columns are fixed in the pits of the cover plate. The support columns are made by stamping and are integrally formed with the cover plate; one side of the porous capillary structure is fixedly connected to the inner wall of the bottom plate, and the other side is in contact with the support columns. When the bottom plate of this heat pipe is attached to the heat source, the liquid working fluid in the porous capillary structure absorbs heat and changes into saturated steam. The saturated steam will condense into a liquid state when it encounters cooling on the cavity wall surface and release relevant latent heat, so as to release the waste heat of the device to a larger external environment. Obviously, its heat dissipation method is single, the circulating speed of the working fluid is not high, and the heat dissipation efficiency is average, which cannot meet the increasing requirements of modern electronic devices for heat pipes.

[0004] Therefore, the prior art needs to be improved and enhanced. Content of the Utility Model

[0005] In order to overcome the above problems existing in the prior art, the purpose of the utility model is to provide a high-performance heat pipe with multiple heat dissipation methods, fast circulating speed of working fluid and high heat dissipation efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-performance heat pipe, including a heat pipe body, which is divided into a first heat dissipation area corresponding to a heat source and a second heat dissipation area and a third heat dissipation area located on both sides of the first heat dissipation area; wherein,

[0008] A number of heat conduction tubes are arranged in the first heat dissipation area;

[0009] A first confluence channel is arranged between the first heat dissipation area and the second heat dissipation area along the length direction, and a second confluence channel is arranged between the first heat dissipation area and the third heat dissipation area along the length direction; the first confluence channel and the second confluence channel are symmetrical about the central axis in the width direction of the heat pipe body.

[0010] As a further solution of the present utility model, the heat pipe body includes a first cover plate and a second cover plate which are oppositely arranged, a chamber is formed between the first cover plate and the second cover plate, a coolant is filled in the chamber, a first capillary structure is arranged on one side of the first cover plate facing the second cover plate, a second capillary structure is arranged on one side of the second cover plate facing the first cover plate, and a plurality of support columns are arranged between the first cover plate and the second cover plate.

[0011] As a further solution of the present utility model, the heat conduction tubes are evenly distributed on the first heat dissipation area, a filling port is arranged at the first end of the heat conduction tube, and the second end of the heat conduction tube is communicated with the chamber of the first heat dissipation area.

[0012] As a further solution of the present utility model, the first confluence channel includes a first confluence branch channel and a second confluence branch channel, and the first confluence branch channel and the second confluence branch channel are symmetrical about the central axis in the length direction of the heat pipe body.

[0013] As a further solution of the present utility model, the first confluence branch channel includes a first straight channel and a plurality of first inclined channels, the second confluence branch channel includes a second straight channel and a plurality of first inclined channels, a plurality of first inclined channels are arranged in an array on one side of the first straight channel relative to the second straight channel, and a plurality of second inclined channels are arranged in an array on one side of the second straight channel relative to the first straight channel.

[0014] As a further solution of the present utility model, the first capillary structure is a 3D woven or 2D woven metal mesh, metal foam or metal powder.

[0015] As a further solution of the present utility model, the second capillary structure is a 3D woven or 2D woven metal mesh, metal foam or metal powder.

[0016] As a further solution of the present utility model, a plurality of capillary structures are arranged on the end surface of the support column close to the first cover plate.

[0017] As a further solution of the present utility model, the capillary structure is a strip-shaped groove, and the strip-shaped groove penetrates through the end surface of the support column close to the first cover plate in the horizontal direction.

[0018] As a further solution of the present utility model, both ends of the first cover plate and the second cover plate are connected together through an end plate.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] Due to the above structural design, that is, heat conduction tubes, a first confluence channel, and a second confluence channel are arranged in the heat pipe, not only are the heat conduction tubes increased, the heat dissipation methods are diversified, and the heat dissipation efficiency is improved, but also a diversion structure is added, enabling the coolant to circulate rapidly, further enhancing the heat dissipation capacity of the heat pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0022] FIG Figure 2 is a top view of the interior of an embodiment of the present utility model;

[0023] FIG Figure 3 is a top sectional view of an embodiment of the present utility model;

[0024] FIG Figure 4 is a schematic diagram when an embodiment of the present utility model is applied.

[0025] The reference numerals in the figures are as follows:

[0026] 100 - heat pipe body, 200 - heat conduction tube, 300 - first confluence channel, 400 - second confluence channel;

[0027] 100a - first heat dissipation area, 100b - second heat dissipation area, 100c - third heat dissipation area;

[0028] 101 - first cover plate, 102 - second cover plate, 103 - chamber, 104 - first capillary structure, 105 - second capillary structure, 106 - support column, 107 - end plate;

[0029] 201 - injection port;

[0030] 301 - first confluence branch channel, 302 - second confluence branch channel;

[0031] 3011 - first straight channel, 3012 - first inclined channel;

[0032] 3021 - second straight channel, 3022 - second inclined channel;

[0033] 1061 - strip-shaped groove;

[0034] 1000 - heat source. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present application.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0038] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0040] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0041] Embodiment:

[0042] As Figures 1-4 shown, a high-performance heat pipe of the present application includes a heat pipe body 100, and the heat pipe body 100 includes a first cover plate 101 and a second cover plate 102 which are oppositely arranged. A chamber 103 is formed between the first cover plate 101 and the second cover plate 102, and the chamber 103 is filled with a coolant. A first capillary structure 104 is arranged on the side of the first cover plate 101 facing the second cover plate 102, and a second capillary structure 105 is arranged on the side of the second cover plate 102 facing the first cover plate 101. A plurality of support columns 106 are arranged between the first cover plate 101 and the second cover plate 102, and the support columns 106 are used to improve the strength of the device, prevent the first cover plate 101 and the second cover plate 102 from contacting when the device is under pressure, and ensure the smooth flow of the coolant in the first cover plate 101 and the second cover plate 102, thereby ensuring the heat conduction efficiency.

[0043] The heat pipe body 100 is divided into a first heat dissipation area 100a corresponding to a heat source 1000 and a second heat dissipation area 100b and a third heat dissipation area 100c located on both sides of the first heat dissipation area 100a; wherein,

[0044] Six heat conduction tubes 200 are arranged in the first heat dissipation area 100a; the heat conduction tubes 200 are evenly distributed on the first heat dissipation area 100a. A liquid injection port 201 is arranged at the first end of the heat conduction tube 200, that is, the end extending out of the heat pipe body 100, for injecting the coolant, and the liquid injection port is sealed after injection; the second end of the heat conduction tube 200, that is, the end extending into the heat pipe body, is communicated with the chamber of the first heat dissipation area 100a, so that the heat conduction tubes 200 and the chamber in the heat pipe body 100 are both filled with the coolant. During operation, the heat generated by the heat source 1000 is not only dissipated through the heat pipe body 100, but also the coolant in the heat pipe body 100 directly acts on the heat conduction tubes 200, and a part of the heat transferred from the heat source 1000 to the coolant in the heat pipe body 100 is transferred out by the heat conduction tubes 200 to improve the heat dissipation efficiency.

[0045] Specifically, a first confluence channel 300 is provided between the first heat dissipation area 100a and the second heat dissipation area 100b along the length direction, and a second confluence channel 400 is provided in the first heat dissipation area 100a and the third heat dissipation area 100c along the length direction; the first confluence channel 300 and the second confluence channel 400 are symmetrical about the central axis in the width direction of the heat pipe body 100. It can be seen from this that the structure of the second confluence channel 400 is the same as that of the first confluence channel 300. Therefore, only the structure of the first confluence channel 300 will be described in detail below, and the structure of the second confluence channel 400 will not be elaborated further.

[0046] The first confluence channel 300 includes a first confluence branch channel 301 and a second confluence branch channel 302, and the first confluence branch channel 301 and the second confluence branch channel 302 are symmetrical about the central axis in the length direction of the heat pipe body 100; the first confluence branch channel 301 includes a first straight channel 3011 and a plurality of first inclined channels 3012, the second confluence branch channel 302 includes a second straight channel 3021 and a plurality of first inclined channels 3012, and a plurality of first inclined channels 3012 are arranged in an array on one side of the first straight channel 3011 relative to the second straight channel 3021, and a plurality of second inclined channels 3022 are arranged in an array on one side of the second straight channel 3021 relative to the first straight channel 3011. During operation, since the first heat dissipation area 100a is in direct contact with the heat source 1000, the temperature of the coolant in the first heat dissipation area 100a is relatively high. The coolant in the first heat dissipation area 100a transfers heat to the coolant in the second heat dissipation area 100b under the action of the first confluence channel 300 and the second capillary structure 105, effectively improving the circulation rate of the coolant in the internal chamber of the heat pipe and further improving the heat dissipation capacity of the heat pipe.

[0047] Specifically, the first capillary structure 105 is a 3D woven or 2D woven metal mesh, metal foam or metal powder; the second capillary structure 106 is a 3D woven or 2D woven metal mesh, metal foam or metal powder, which is used to enable the rapid reflux of the coolant and enhance the reflux ability of the coolant in actual use.

[0048] Specifically, a plurality of capillary structures are provided on the end surface of the support column 106 close to the first cover plate 101, and the capillary structures are strip-shaped grooves 1061, and the strip-shaped grooves 1061 penetrate through the end surface of the support column 106 close to the first cover plate 101 in the horizontal direction. By providing a plurality of strip-shaped grooves 1061 on the end surface of the support column 106 close to the first cover plate 101, the reflux of the coolant is further facilitated.

[0049] Specifically, both ends of the first cover plate 101 and the second cover plate 102 are connected together by an end plate 107.

[0050] In summary, through the above structural design, the utility model solves the deficiencies in the prior art and has the characteristics of reasonable structure, high heat dissipation efficiency, strong practicability, etc.

[0051] As a further solution of the utility model, the technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0052] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A high-performance heat spreader, comprising a heat spreader body, the heat spreader body being divided into a first heat dissipation zone corresponding to a heat source and a second heat dissipation zone and a third heat dissipation zone located on both sides of the first heat dissipation zone; characterized in that: in, A plurality of heat conducting pipes are arranged in the first heat dissipation area; A first confluence channel is arranged between the first heat dissipation zone and the second heat dissipation zone along the length direction, and a second confluence channel is arranged in the first heat dissipation zone and the third heat dissipation zone along the length direction; the first confluence channel and the second confluence channel are symmetrical about the central axis in the width direction of the temperature homogenizing plate body.

2. The high-performance temperature equalizing plate according to claim 1, characterized in that: The temperature equalizing plate body includes a first cover plate and a second cover plate which are arranged opposite to each other, a chamber is formed between the first cover plate and the second cover plate, the chamber is filled with coolant, a first capillary structure is arranged on the side of the first cover plate facing the second cover plate, a second capillary structure is arranged on the side of the second cover plate facing the first cover plate, and a plurality of support columns are arranged between the first cover plate and the second cover plate.

3. The high-performance temperature equalizing plate according to claim 2, characterized in that: The heat-conducting pipes are evenly distributed on the first heat-dissipating area. The first end of the heat-conducting pipe is provided with an injection port, and the second end of the heat-conducting pipe is communicated with the cavity of the first heat-dissipating area.

4. The high-performance temperature equalizing plate as claimed in claim 3, characterized in that: The first confluence channel includes a first confluence branch channel and a second confluence branch channel, and the first confluence branch channel and the second confluence branch channel are symmetrical about the central axis in the length direction of the temperature homogenizing plate body.

5. The high-performance temperature equalizing plate according to claim 4, characterized in that: The first branch channel includes a first straight channel and a plurality of first inclined channels, the second branch channel includes a second straight channel and a plurality of first inclined channels, the first straight channel is provided with a plurality of first inclined channels in an array on one side relative to the second straight channel, and the second straight channel is provided with a plurality of second inclined channels in an array on one side relative to the first straight channel.

6. The high-performance temperature equalizing plate according to claim 5, characterized in that: The first capillary structure is a 3D woven or 2D woven metal mesh, foamed metal or metal powder.

7. The high-performance temperature equalizing plate according to claim 6, characterized in that: The second capillary structure is a 3D woven or 2D woven metal mesh, foamed metal or metal powder.

8. The high-performance temperature equalizing plate according to claim 7, characterized in that: A plurality of capillary structures are arranged on the end surface of the support column close to the first cover plate.

9. The high-performance temperature equalizing plate as claimed in claim 8, characterized in that: The capillary structure is a strip-shaped groove, and the strip-shaped groove passes through the end surface of the support column close to the first cover plate in a horizontal direction.

10. The high-performance temperature equalizing plate according to claim 9, characterized in that: Both ends of the first cover plate and the second cover plate are connected together through an end plate.

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