Tube-sheet integrated temperature averaging plate and manufacturing method

Abstract

The present invention relates to the technical field of temperature equalizing plates, and discloses a tube-plate integrated temperature equalizing plate, including an upper plate and a plurality of metal tubes, each of which is arranged in an integral shape with the upper plate, one end of the metal tube is connected to the upper plate, and the other end of the metal tube is arranged to extend in a direction away from the upper plate, the inner wall of the metal tube is provided with a tube capillary layer, and the upper plate is paved with a plate capillary layer, the tube capillary layer and the plate capillary layer are respectively made of metal powder, and the tube capillary layer and the plate capillary layer are arranged in a continuous butt joint. Since the plurality of metal tubes are arranged in an integral shape with the upper plate, no solder is required during manufacturing, which reduces costs and facilitates manufacturing, and since the tube capillary layer and the plate capillary layer are arranged in a continuous manner, the thermal resistance is greatly reduced, which facilitates the conduction of heat, thereby improving the thermal conductivity effect, and further improving the heat dissipation effect on the heat source.

Description

Technical Field

[0001] The invention patent relates to the technical field of temperature equalizing plates, specifically, to a tube-sheet integrated temperature equalizing plate and a manufacturing method. Background Art

[0002] A computer host generates a large amount of heat when working. If the heat is not dissipated in time, it may cause a crash at best and even burn out the parts of the host at worst. Therefore, a radiator is needed to dissipate the heat of the internal components of the host.

[0003] The radiator includes a heat dissipation metal tube, heat dissipation fins and a temperature equalizing plate. The temperature equalizing plate conducts heat and achieves heat dissipation through the cooperation of each heat dissipation metal tube and each heat dissipation fin.

[0004] At present, in order to increase the heat dissipation effect of the metal tube, a copper powder layer is attached to the inside of the heat dissipation metal tube during production; for example, the prior patent with publication number CN217721903U discloses a 3DVC radiator with a hybrid support structure, including a radiator substrate, copper powder, copper powder column, folded FIN, upper cover, and groove tube. The copper powder column is composed of a copper column and a sintered copper powder ring, and the copper powder is sintered on the radiator substrate. The folded FIN and the copper column in the copper powder column are welded to the radiator substrate. The sintered copper powder ring on the copper powder column is in contact with the copper powder, and the copper powder column is located at the heat source contact end in the middle of the radiator. The upper cover is welded to the radiator substrate and welded to the copper powder column and the folded FIN contact surface, and the groove tube is welded to the upper cover.

[0005] In the prior art, the groove tube and the upper cover are assembled by welding, which may lead to poor airtightness during the phase change of the working fluid, resulting in leakage of the working fluid; at the same time, the copper powder of the substrate and the groove tube lack coordination, affecting the thermal conductivity effect. Summary of the invention

[0006] The object of the present invention is to provide a tube-sheet integrated temperature equalizing plate and a manufacturing method thereof, aiming to solve the problem of poor heat conduction of the radiator in the prior art.

[0007] The present invention is implemented as follows: a tube-plate integrated temperature equalizing plate comprises an upper plate and a plurality of metal tubes, each of the metal tubes is integrally formed with the upper plate, one end of the metal tube is connected to the upper plate, and the other end of the metal tube is extended in a direction away from the upper plate, the inner wall of the metal tube is provided with a tube capillary layer, and the upper plate is paved with a plate capillary layer, the tube capillary layer and the plate capillary layer are respectively made of metal powder, and the tube capillary layer and the plate capillary layer are arranged in a continuous butt joint.

[0008] Furthermore, the inner wall of the metal tube is arranged in an enclosed column shape, the tube capillary layer is flatly laid against the inner wall of the metal tube, and the tube capillary layer covers the entire inner wall of the metal tube.

[0009] Furthermore, the metal tube includes an upper tube section and a lower tube section, the upper tube section and the lower tube section are arranged in a butt joint along a straight line, and the upper tube section and the lower tube section are arranged in an integral form; an upper tube wall is formed inside the upper tube section, and a lower tube wall is formed inside the lower tube section, the upper tube wall and the lower tube wall are arranged in an offset manner, the tube diameter of the upper tube section is larger than the tube diameter of the lower tube section, the tube capillary layer is synchronously laid on the upper tube wall and the lower tube wall, and the thickness of the tube capillary layer of the upper tube wall is greater than the thickness of the tube capillary layer of the lower tube wall.

[0010] Furthermore, the metal tube includes an upper tube section and a lower tube section, the upper tube section and the lower tube section are arranged in a straight line and are integrally formed; the tube wall thickness of the upper tube section is smaller than the tube wall thickness of the lower tube section.

[0011] Furthermore, the upper plate and the metal tube are connected through a cavity, and the cavity is used to allow the heated, evaporated, and gasified working medium to flow along the upper plate to the tube cavity; the tube capillary layer is used to guide the liquefied working medium to flow back to the plate capillary layer.

[0012] Further, the tube-sheet integrated temperature equalizing plate comprises a copper bottom plate, the copper bottom plate comprises an upper plate and a lower plate, the upper plate and the lower plate are assembled, the lower plate is arranged corresponding to or in contact with the heat source, the lower plate is used to absorb heat, the upper plate and the lower plate form a bottom plate cavity, the bottom plate cavity is connected to the interior of the metal tube, and the inner wall of the lower plate is provided with a lower capillary layer;

[0013] The lower capillary layer includes a longitudinal capillary segment and a lower capillary segment. The upper portion of the longitudinal capillary segment is butt-jointed with the plate capillary layer, the lower portion of the longitudinal capillary segment is continuously butt-jointed with the lower capillary segment, and the lower capillary segment is horizontally laid with the lower plate. The liquefied working medium flows back along the upper capillary segment to the longitudinal capillary segment and then back to the lower capillary segment.

[0014] Furthermore, the tube-sheet integrated temperature equalizing plate includes a heat dissipation fin group, the heat dissipation fin group includes a plurality of fin bodies, each of the fin bodies is arranged in an interval and stacked manner, each of the metal tubes synchronously passes through each of the fin bodies, and the fin bodies are used to conduct and dissipate the heat of the metal tubes.

[0015] The manufacturing method of the tube-sheet integrated temperature averaging plate comprises an upper plate, a lower plate and a plurality of metal tubes, and the specific steps are as follows:

[0016] (1) Forging combined with CNC processing is used to form an upper plate and multiple metal tubes arranged in an integral manner, and the upper plate and multiple metal tubes arranged in an integral manner form a multi-tube metal plate member;

[0017] (2) Clean the multi-tube metal plate to remove the grease remaining from forging and CNC machining;

[0018] (3) Perform powder filling operation, fill the metal powder on the inner wall of the metal tube and the inner wall of the upper plate, and then perform capillary sintering operation to form a tube capillary layer and a plate capillary layer, and the tube capillary layer and the plate capillary layer are arranged in a continuous butt joint;

[0019] (4) Weld the multi-tube metal plate and the lower plate by diffusion welding, and the multi-tube metal plate and the lower plate form the same cavity;

[0020] (5) Arrange the heat dissipation fin group in an assembled manner with each metal tube.

[0021] Further, in step (3), a central rod is inserted into the metal tube to achieve the filling of the metal powder.

[0022] Compared with the prior art, for the tube-plate integrated heat pipe and its manufacturing method provided by the present invention, during specific heat dissipation, the working medium is vaporized by heat and flows into the tube cavity, and then the heat is dissipated through the metal tube to achieve cooling and heat dissipation. Then, the cooled working medium turns into a liquid state, and the liquid working medium flows back to the plate capillary layer along the tube capillary layer, so as to circulate to absorb and dissipate the heat of the heat source, meeting the heat dissipation requirements of electronic devices such as computers; at the same time, since the metal tube and the upper plate are integrally formed, no solder is required during manufacturing, reducing costs and facilitating manufacturing. Moreover, due to the continuous arrangement between the tube capillary layer and the plate capillary layer, the thermal resistance is reduced, facilitating heat conduction, thereby improving the heat conduction effect and further enhancing the heat dissipation effect on the heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional schematic view of the tube-plate integrated heat pipe provided by the present invention;

[0024] Figure 2 is an enlarged schematic view of part A of the tube-plate integrated heat pipe provided by the present invention;

[0025] Figure 3 is a cross-sectional schematic view of the tube capillary layer and the plate capillary layer of the tube-plate integrated heat pipe provided by the present invention;

[0026] Figure 4 is a cross-sectional schematic view of the copper bottom plate and the metal tube of the tube-plate integrated heat pipe provided by the present invention;

[0027] Figure 5 is a three-dimensional schematic view of the tube-plate integrated heat pipe provided by the present invention;

[0028] Figure 6 is a schematic view of the steps of the manufacturing method of the tube-plate integrated heat pipe provided by the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] Reference Figure 1-6 The figure shows a preferred embodiment of the present invention.

[0033] The tube-sheet integrated temperature equalizing plate comprises an upper plate 11 and a plurality of metal tubes 2, each of the metal tubes 2 is integrally formed with the upper plate 11, one end of the metal tube 2 is connected to the upper plate 11, and the other end of the metal tube 2 is extended in a direction away from the upper plate 11, a tube capillary layer 4 is provided on the inner wall of the metal tube 2, and a plate capillary layer 3 is laid on the upper plate 11, the tube capillary layer 4 and the plate capillary layer 3 are respectively made of metal powder, and the tube capillary layer 4 and the plate capillary layer 3 are arranged in a continuous butt joint.

[0034] In the above-mentioned tube-sheet integrated temperature equalizing plate, when dissipating heat, the working fluid is heated and vaporized and flows to the tube cavity 21, and then the heat is dissipated through the metal tube 2 to achieve cooling and heat dissipation. Then, the cooled working fluid is converted into liquid, and the liquid working fluid flows back to the plate capillary layer 3 along the tube capillary layer 4. This cycle realizes the absorption and dissipation of heat from the heat source, thereby meeting the heat dissipation of electronic equipment such as computers. At the same time, since the metal tube 2 and the upper plate 11 are integrally formed, no solder is required during manufacturing, which reduces costs and facilitates manufacturing. In addition, since the tube capillary layer 4 and the plate capillary layer 3 are arranged in a continuous manner, the thermal resistance is reduced, which facilitates the conduction of heat, thereby improving the thermal conductivity effect, and then improving the heat dissipation effect of the heat source.

[0035] The upper plate 11 is a temperature-averaging plate for conducting heat to facilitate heat conduction to each metal tube 2 .

[0036] The metal tube 2 may be a copper tube, the metal may be an aluminum tube, the metal may be a copper alloy, and the metal tube 2 may be an aluminum alloy.

[0037] The tube-sheet integrated temperature equalizing plate comprises a copper bottom plate 1, and the copper bottom plate 1 comprises an upper plate 11 and a lower plate 12. The upper plate 11 and the lower plate 12 are welded by diffusion welding.

[0038] The copper bottom plate 1 is used to absorb the heat source, thereby absorbing the heat source and further dissipating the heat.

[0039] The working fluid is a heat transfer fluid, which has a low boiling point and is easy to absorb heat and evaporate, turning into gas. Under the action of pressure difference, it flows to the metal tube 2, then releases heat through liquefaction, condenses into liquid and flows back to the copper bottom plate 1, and so on, improving the heat dissipation effect of the radiator.

[0040] Even the working fluid can be water.

[0041] The inner wall of the metal tube 2 is arranged in an enclosed columnar shape, the capillary layer 4 is flatly laid against the inner wall of the metal tube 2, and the capillary layer 4 covers the entire inner wall of the metal tube 2; in this way, under the action of the capillary layer 4, the heat conduction effect is improved, thereby improving the heat dissipation effect of the metal tube 2.

[0042] The metal tubes 2 are arranged in an array at intervals to achieve heat dissipation in multiple areas, thereby improving the heat dissipation effect on the heat source.

[0043] The metal tube 2 includes an upper tube section and a lower tube section, which are arranged in a straight line and are integrally formed, which facilitates the production and manufacturing of the metal tube 2, reduces thermal resistance, facilitates heat conduction, and thus facilitates heat dissipation.

[0044] The upper plate 11 and the metal tube 2 are connected through a cavity, and the cavity is used to allow the heated, evaporated, and gasified working medium to flow along the upper plate 11 to the tube cavity 21 ; the tube capillary layer 4 is used to guide the liquefied working medium to flow back to the plate capillary layer 3 .

[0045] In this way, under the action of the cavity mouth, the bottom plate cavity 13 and the tube cavity 21 are connected, so that the heated evaporated gasified working medium flows to the tube cavity 21, realizing the conduction of heat, thereby playing a role in heat dissipation; at the same time, under the cooperation of the tube capillary layer 4 and the plate capillary layer 3, the reflux of the liquefied working medium is realized, realizing circulating heat dissipation.

[0046] The tube-sheet integrated temperature equalizing plate includes a copper bottom plate 1, which includes an upper plate 11 and a lower plate 12. The upper plate 11 and the lower plate 12 are assembled, and the lower plate 12 is arranged corresponding to or in contact with the heat source. The lower plate 12 is used to absorb heat. The upper plate 11 and the lower plate 12 form a bottom plate cavity 13, and the bottom plate cavity 13 is connected to the interior of the metal tube 2. The inner wall of the lower plate 12 is provided with a lower capillary layer 5.

[0047] In this way, the heated and evaporated working fluid flows to the tube cavity 21, and the heat-dissipating and liquefied working fluid refluxes to achieve circulating heat dissipation; and the bottom plate cavity 13 is connected to the interior of the metal tube 2, which has better air tightness, avoids leakage of the working fluid, and increases the service life.

[0048] The lower capillary layer 5 includes a longitudinal capillary segment 51 and a lower capillary segment 52. The upper portion of the longitudinal capillary segment 51 is butt-jointed with the plate capillary layer 3, and the lower portion of the longitudinal capillary segment 51 is continuously butt-jointed with the lower capillary segment 52. The lower capillary segment 52 is horizontally laid with the lower plate 12. The liquefied working medium flows back along the upper capillary segment to the longitudinal capillary segment 51 and then back to the lower capillary segment 52.

[0049] In this way, the reflux of the liquefied working medium is along the plate capillary layer 3 and the longitudinal capillary section 51 to the lower capillary section 52, so that the evaporation and gasification are separated from the liquefaction reflux, and the circulation heat dissipation is realized, which also realizes the uninterrupted absorption of heat, improves the heat absorption effect and improves the heat dissipation effect.

[0050] The tube-sheet integrated temperature equalizing plate includes a heat dissipation fin group, which includes a plurality of fin bodies. The fin bodies are arranged in an intermittent and stacked manner. The metal tubes 2 synchronously penetrate the fin bodies. The fin bodies are used to conduct and dissipate the heat of the metal tubes 2.

[0051] The heat is evenly distributed to each fin body through each metal tube 2, and the heat is dissipated outward through each fin body, so that the heat will not accumulate and the heat dissipation is achieved.

[0052] Metal powder embodiment 1:

[0053] The metal powder is copper powder, and the metal tube 2 is a copper tube. The tube capillary layer 4 and the plate capillary layer 3 are respectively made of copper powder to form copper powder layers, and the copper powder layers are arranged in a continuous manner.

[0054] Metal powder embodiment 2:

[0055] The metal powder is aluminum powder, and the metal tube 2 is an aluminum tube. The tube capillary layer 4 and the plate capillary layer 3 are respectively made of aluminum powder to form aluminum powder layers, and the aluminum powder layers are arranged in a continuous manner.

[0056] Metal powder embodiment 3:

[0057] The metal tube 2 is an alloy tube, which may be an aluminum-copper alloy, and the metal powder is copper powder. The tube capillary layer 4 and the plate capillary layer 3 are respectively made of copper powder to form copper powder layers, and the copper powder layers are arranged in a continuous manner.

[0058] Alternatively, the metal powder is aluminum powder, and the tube capillary layer 4 and the plate capillary layer 3 are respectively made of aluminum powder to form aluminum powder layers, and the aluminum powder layers are arranged in a continuous manner.

[0059] Metal tube 2 embodiment 1:

[0060] An upper tube wall is formed inside the upper tube section, and a lower tube wall is formed inside the lower tube section. The upper tube wall and the lower tube wall are arranged in a staggered manner. The tube diameter of the upper tube section is larger than the tube diameter of the lower tube section. The capillary layer 4 is synchronously laid on the upper tube wall and the lower tube wall. The thickness of the capillary layer 4 of the upper tube wall is greater than the thickness of the capillary layer 4 of the lower tube wall.

[0061] The thickness of the tube capillary layer 4 corresponding to the upper tube section is greater than the thickness of the tube capillary layer 4 corresponding to the lower tube section. That is to say, the heat conduction effect of the upper tube section is stronger, which facilitates the rapid conduction of heat to the upper part of the metal tube 2, thereby utilizing the heat dissipation fin group to dissipate the heat; the advantage of such a setting is that the heat can be conducted and transferred more quickly, greatly improving the heat dissipation effect.

[0062] Metal tube 2 embodiment 2:

[0063] The metal tube 2 includes an upper tube section and a lower tube section, which are butt-jointed along a straight line and are integrally formed; the tube wall thickness of the upper tube section is smaller than that of the lower tube section.

[0064] In this way, the smaller the thickness of the tube wall of the upper tube section is, the faster the heat can be transferred to the heat dissipation fin group and the faster the heat can be dissipated outward, thereby improving the heat dissipation effect.

[0065] The manufacturing method of the tube-sheet integrated temperature balancing plate comprises an upper plate 11, a lower plate 12 and a plurality of metal tubes 2, and the specific steps are as follows:

[0066] (1) Forging combined with CNC processing is used to form an upper plate 11 and a plurality of metal tubes 2 arranged in an integral manner, and the upper plate 11 and the plurality of metal tubes 2 arranged in an integral manner form a multi-tube metal plate member;

[0067] (2) cleaning the multi-tube metal plate to remove residual grease from forging and CNC processing;

[0068] (3) Powder filling operation, filling metal powder on the inner wall of the metal tube 2 and the inner wall of the upper plate 11, and then performing capillary sintering operation to form a tube capillary layer 4 and a plate capillary layer 3, and the tube capillary layer 4 and the plate capillary layer 3 are arranged in a continuous butt joint manner;

[0069] (4) The multi-tube metal plate and the lower plate 12 are welded by diffusion welding, and the multi-tube metal plate and the lower plate 12 form the same cavity;

[0070] (5) Assemble and arrange the heat dissipation fin group and each of the metal tubes 2.

[0071] The manufacturing method of the above-mentioned tube-sheet integrated temperature equalizing plate realizes the integral molding arrangement of the upper plate 11 and multiple metal tubes 2 by forging combined with CNC processing. In this way, during manufacturing, there is no need to use solder, that is, there is no need to use solder paste, which reduces costs and facilitates manufacturing. The upper plate 11 and multiple metal tubes 2 form a multi-tube metal plate part, and then the multi-tube metal plate part is filled with metal powder, and then capillary sintering is performed to form a continuously arranged tube capillary layer 4 and plate capillary layer 3. Under the action of the tube capillary layer 4 and the plate capillary layer 3, heat conduction and reflux of liquefied working fluid are facilitated.

[0072] Furthermore, the multi-tube metal plate and the lower plate 12 are welded by diffusion welding, and no solder is needed, that is, no solder paste is needed, which reduces costs and facilitates manufacturing.

[0073] In step (3), a center rod is inserted into the metal tube 2 to achieve filling of the metal powder.

[0074] During the specific forging operation, the forging die is placed in a forging furnace, the copper raw material is loaded into the forging die, and then, it is heated at high temperature until the radiator is formed, and then, it is heat treated and cleaned, mainly to remove the surface oxide scale of the radiator.

[0075] Alternatively, the upper plate 11 and the plurality of metal tubes 2 may be integrally formed by 3D printing.

[0076] Alternatively, the upper plate 11 and the plurality of metal tubes 2 may be integrally formed by CNC machining.

[0077] In addition, after step (4), the air tightness of the heat sink is tested.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Tube sheet integrated temperature plate, It is characterized in that The invention comprises an upper plate and a plurality of metal tubes, each of which is integrally formed with the upper plate, one end of the metal tube is connected to the upper plate, and the other end of the metal tube is extended in a direction away from the upper plate, the inner wall of the metal tube is provided with a tube capillary layer, the upper plate is paved with a plate capillary layer, the tube capillary layer and the plate capillary layer are respectively made of metal powder, and the tube capillary layer and the plate capillary layer are arranged in a continuous butt joint; the metal tube comprises an upper tube section and a lower tube section, the upper tube section and the lower tube section are butt jointed along a straight line, and the upper tube section and the lower tube section are integrally formed; an upper tube wall is formed inside the upper tube section, and a lower tube wall is formed inside the lower tube section, the upper tube wall and the lower tube wall are staggered, the tube diameter of the upper tube section is larger than the tube diameter of the lower tube section, the tube capillary layer is synchronously laid on the upper tube wall and the lower tube wall, and the thickness of the tube capillary layer of the upper tube wall is larger than the thickness of the tube capillary layer of the lower tube wall; Alternatively, the metal tube includes an upper tube section and a lower tube section, the upper tube section and the lower tube section are arranged in a straight line and are integrally formed; the tube wall thickness of the upper tube section is smaller than the tube wall thickness of the lower tube section.

2. The tube-sheet integrated temperature equalizing plate according to claim 1, It is characterized in that The inner wall of the metal tube is arranged in an enclosed column shape, the tube capillary layer is flatly laid against the inner wall of the metal tube, and the tube capillary layer covers the entire inner wall of the metal tube.

3. The tube-sheet integrated temperature equalizing plate according to claim 1, It is characterized in that The upper plate and the metal tube are connected through a cavity, and the cavity is used to allow the heated, evaporated, and gasified working medium to flow along the upper plate to the tube cavity; the tube capillary layer is used to guide the liquefied working medium to flow back to the plate capillary layer.

4. The tube-sheet integrated temperature equalizing plate according to claim 3, It is characterized in that The tube-sheet integrated temperature equalizing plate comprises a copper bottom plate, the copper bottom plate comprises an upper plate and a lower plate, the upper plate and the lower plate are assembled, the lower plate is arranged corresponding to or in contact with the heat source, the lower plate is used to absorb heat, the upper plate and the lower plate form a bottom plate cavity, the bottom plate cavity is connected to the interior of the metal tube, and the inner wall of the lower plate is provided with a lower capillary layer; The lower capillary layer includes a longitudinal capillary segment and a lower capillary segment. The upper portion of the longitudinal capillary segment is butt-jointed with the plate capillary layer, the lower portion of the longitudinal capillary segment is continuously butt-jointed with the lower capillary segment, and the lower capillary segment is horizontally laid with the lower plate. The liquefied working medium flows back along the upper capillary segment to the longitudinal capillary segment and then back to the lower capillary segment.

5. The tube-sheet integrated temperature equalizing plate according to any one of claims 1 to 4, It is characterized in that The tube-plate integrated temperature equalizing plate comprises a heat dissipation fin group, the heat dissipation fin group comprises a plurality of fin bodies, each of the fin bodies is arranged in an interval and stacked manner, each of the metal tubes synchronously penetrates each of the fin bodies, and the fin bodies are used to conduct and dissipate the heat of the metal tubes.

6. Manufacturing method of tube sheet integrated temperature averaging plate, It is characterized in that It includes an upper plate, a lower plate and multiple metal tubes. The specific steps are as follows: (1) Forging combined with CNC processing is used to form an upper plate and multiple metal tubes arranged in an integral manner, and the upper plate and multiple metal tubes arranged in an integral manner form a multi-tube metal plate; the metal tube includes an upper tube section and a lower tube section, the upper tube section and the lower tube section are arranged in a straight line and are arranged in an integral manner; an upper tube wall is formed inside the upper tube section, and a lower tube wall is formed inside the lower tube section, the upper tube wall and the lower tube wall are arranged in an offset manner, the tube diameter of the upper tube section is larger than the tube diameter of the lower tube section, the tube capillary layer is synchronously laid on the upper tube wall and the lower tube wall, and the thickness of the tube capillary layer of the upper tube wall is larger than the thickness of the tube capillary layer of the lower tube wall; Alternatively, the metal tube comprises an upper tube section and a lower tube section, the upper tube section and the lower tube section are butt-jointed along a straight line, and the upper tube section and the lower tube section are integrally formed; the tube wall thickness of the upper tube section is smaller than the tube wall thickness of the lower tube section; (2) cleaning the multi-tube metal plate to remove residual grease from forging and CNC processing; (3) Powder filling operation, filling the metal powder on the inner wall of the metal tube and the inner wall of the upper plate, and then performing capillary sintering operation to form a tube capillary layer and a plate capillary layer, and the tube capillary layer and the plate capillary layer are arranged in a continuous butt joint manner; (4) The multi-tube metal plate and the lower plate are welded by diffusion welding, and the multi-tube metal plate and the lower plate form the same cavity; (5) Assemble and arrange the heat dissipation fin group and each of the metal tubes.

7. The method for manufacturing the tube-sheet integrated temperature balancing plate according to claim 6, It is characterized in that In step (3), a center rod is inserted into the metal tube to achieve filling of the metal powder.

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