VC multi-channel capillary backflow supporting column

Abstract

The invention relates to the technical field of VC supporting columns, and discloses a VC multi-channel capillary backflow supporting column which comprises a plurality of supporting columns, the supporting columns are correspondingly arranged at intervals, each supporting column comprises an outer copper column, a copper supporting column, an inner copper column and a connecting column set, and the outer copper columns, the copper supporting columns and the inner copper columns are sequentially arranged in a sleeved mode. The outer copper column, the inner copper column and the connecting column group are respectively used for multi-directional capillary backflow; and the connecting column group is used for capillary conduction arrangement of the outer copper column and the inner copper column, and is used for transferring a liquid working medium. The outer copper columns, the copper supporting columns and the inner copper columns are matched, enough supporting force is achieved, a large number of supporting columns do not need to be arranged, the manufacturing cost of the heat dissipation device is reduced, and the manufacturing process is simplified; in the use process, a liquid working medium flows back through the outer copper column and the inner copper column, meanwhile, the outer copper column and the inner copper column are in capillary communication through the connecting column set, capillary backflow of the working medium in multiple directions and multiple channels is achieved, the backflow path of the working medium is increased, and the backflow efficiency and the backflow effect of the liquid working medium are greatly improved.

Description

Technical Field

[0001] The invention patent relates to the technical field of VC support columns, specifically, to VC multi-channel capillary reflux support columns. Background Art

[0002] VC heat sink is a heat dissipation technology that improves heat dissipation efficiency by optimizing the heat dissipation structure and increasing the heat dissipation area, and conducts the heat generated inside the electronic device to the surrounding environment, effectively solving the heat dissipation problem of electronic equipment.

[0003] At present, the VC heat sink includes a VC substrate and a plurality of support columns, which are located inside the VC substrate and play a supporting and capillary reflux role through the support columns; for example, the prior patent with the authorization announcement number CN217721903 U discloses a 3D A VC heat sink comprises a heat sink substrate (1), copper powder (2), a copper powder column (3), a folded FIN (4), an upper cover (5), and a groove tube (6). The copper powder column (3) is composed of a copper column (31) and a sintered copper powder ring (32), and the copper powder (2) is sintered on the heat sink substrate (1). The folded FIN (4) and the copper column (31) in the copper powder column (3) are welded to the heat sink substrate (1). The sintered copper powder ring (32) on the copper powder column (3) is in contact with the copper powder (2), and the copper powder column (3) is located at the heat source contact end in the middle of the heat sink. The upper cover (5) is welded to the heat sink substrate (1) and welded to the contact surface of the copper powder column (3) and the folded FIN (4). The groove tube (6) is welded to the upper cover (5).

[0004] In the prior art, the support column adopts the method of inner copper column and outer copper powder ring, and the capillary reflux channel is single, resulting in poor reflux efficiency of liquid working medium, affecting the overall heat dissipation effect. Summary of the invention

[0005] The object of the present invention is to provide a VC multi-channel capillary reflux support column, aiming to solve the problems in the prior art.

[0006] The present invention is implemented as follows: a VC multi-channel capillary reflux support column comprises a plurality of support columns, each of which is arranged in a corresponding interval, and the support column comprises an outer copper column, a copper support column, an inner copper column and a connecting column group, and the outer copper column, the copper support column and the inner copper column are arranged in sequence, and the outer copper column, the inner copper column and the connecting column group are respectively used for multi-directional capillary reflux; the connecting column group is used for the outer copper column and the inner copper column to be capillary conductively arranged, and the connecting column group is used for the transfer of liquid working fluid.

[0007] Furthermore, the connecting column group includes a plurality of short connecting columns, each of which is arranged at intervals and in correspondence, the short connecting columns are extended in a radial direction, and one end of the short connecting column is butt-jointed with the inner copper column, and the other end of the short connecting column extends through the copper support column and is butt-jointed with the outer copper column.

[0008] Furthermore, the connecting column group includes a plurality of long connecting columns, each of which is arranged at intervals and in correspondence, and the long connecting columns are extended in a radial direction, and the long connecting columns penetrate the copper support column and have two ends respectively connected to the outer copper column and the inner copper column.

[0009] Furthermore, the connecting column group includes a plurality of short connecting columns and a plurality of long connecting columns, and the short connecting columns and the long connecting columns are respectively extended and arranged in the radial direction, one end of the short connecting column is butt-jointed with the inner copper column, the other end of the short connecting column passes through the copper support column and extends to be butt-jointed with the outer copper column, and the long connecting column passes through the copper support column and its two ends are respectively butt-jointed with the outer copper column and the inner copper column.

[0010] Furthermore, the copper support column has a middle column groove and an upper column groove, the middle column groove extends along the axial direction, the inner end of the upper column groove is connected to the middle column groove, and the outer end of the upper column groove extends along the radial direction until it is through; the inner copper column includes an inner longitudinal column and an upper transverse column, the inner longitudinal column is embedded in the middle column groove, the upper transverse column is embedded in the upper column groove, the inner end of the upper transverse column is docked with the inner longitudinal column, and the outer end of the upper transverse column is in contact with the outer copper column.

[0011] Furthermore, the copper support column has two upper column grooves, and the two upper column grooves are respectively connected to the middle column groove; the inner copper column includes two upper cross columns, and the two upper cross columns are arranged correspondingly at intervals along the inner longitudinal column, the two upper cross columns and the inner longitudinal column are integrally formed, and the two upper cross columns are respectively embedded with two upper column grooves.

[0012] Furthermore, the inner longitudinal column is located between the two upper transverse columns, and the two upper transverse columns are symmetrically arranged along the inner longitudinal column.

[0013] Furthermore, the copper support column has a lower column groove, the inner end of the lower column groove is connected to the middle column groove, and the outer end of the lower column groove extends in the radial direction until it is penetrated; the inner copper column includes a lower cross column, and the lower cross column is embedded in the lower column groove, the inner end of the lower cross column is docked with the inner longitudinal column, and the outer end of the lower cross column is in contact with the outer copper column.

[0014] Furthermore, the copper support column has two lower column grooves, the two lower column grooves are respectively connected to the middle column groove, and the two lower column grooves are symmetrically arranged along the middle column groove; the inner copper column includes two lower cross columns, the two lower cross columns are symmetrically arranged along the inner longitudinal column, the two lower cross columns and the inner longitudinal column are integrally formed, and the two lower cross columns are respectively embedded with two lower column grooves; along the axial direction of the copper support column, the upper column groove and the lower column groove are arranged correspondingly at both ends, and along the axial direction of the inner longitudinal column, the upper cross column and the lower cross column are arranged correspondingly at both ends.

[0015] Furthermore, the outer surface of the inner longitudinal column is arranged in abutment with the groove wall of the middle column groove, and the outer surface of the copper support column is arranged in abutment with the inner wall of the outer copper column.

[0016] Compared with the prior art, the VC multi-channel capillary reflux support column provided by the present invention has sufficient supporting force under the coordinated action of the outer copper column, the copper support column and the inner copper column, and there is no need to set up a large number of support columns, thereby reducing the cost of the overall heat dissipation device and simplifying the manufacturing process, which is convenient for the production and manufacture of the heat dissipation device; at the same time, during specific use, the working fluid is cooled and phase-changed into a liquid state, and the liquid working fluid is refluxed through the outer copper column and the inner copper column respectively. At the same time, the outer copper column and the inner copper column are capillary connected through the connecting column group, realizing multi-directional and multi-channel capillary reflux of the working fluid, increasing the reflux path of the working fluid, greatly improving the reflux efficiency and reflux effect of the liquid working fluid, and ensuring the heat dissipation effect of the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the decomposition of the VC multi-channel capillary reflux support column provided by the present invention; Figure 2 It is a three-dimensional schematic diagram of a VC multi-channel capillary reflux support column provided by the present invention; Figure 3 It is a three-dimensional schematic diagram of the coordination of the copper support column and the inner copper column of the VC multi-channel capillary reflux support column provided by the present invention; Figure 4 It is a cross-sectional schematic diagram of the coordination of the copper support column and the inner copper column of the VC multi-channel capillary reflux support column provided by the present invention; Figure 5 It is a schematic three-dimensional layout diagram of a connecting column group of a VC multi-channel capillary reflux support column provided by the present invention; Figure 6 It is a schematic cross-sectional layout diagram of a connecting column group of a VC multi-channel capillary reflux support column provided by the present invention. DETAILED DESCRIPTION

[0018] 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.

[0019] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] 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.

[0021] Reference Figure 1-6 The figure shows a preferred embodiment of the present invention.

[0022] The VC multi-channel capillary reflux support column comprises a plurality of support columns, each of which is arranged in a corresponding interval. The support column comprises an outer copper column 1, a copper support column 2, an inner copper column 3 and a connecting column group 4. The outer copper column 1, the copper support column 2 and the inner copper column 3 are arranged in sequence. The outer copper column 1, the inner copper column 3 and the connecting column group 4 are respectively used for multi-directional capillary reflux; the connecting column group 4 is used for the capillary conduction arrangement of the outer copper column 1 and the inner copper column 3, and the connecting column group 4 is used for the transfer of liquid working fluid.

[0023] The above-mentioned VC multi-channel capillary reflux support column has sufficient supporting force under the cooperation of the outer copper column 1, the copper support column 2 and the inner copper column 3, and there is no need to set up a large number of support columns, which reduces the cost of the overall heat dissipation device and simplifies the manufacturing process, and is convenient for the production and manufacture of the heat dissipation device; at the same time, during specific use, the working fluid is cooled and phase-changed into liquid, and the liquid working fluid is refluxed through the outer copper column 1 and the inner copper column 3 respectively. At the same time, the outer copper column 1 and the inner copper column 3 are capillary connected through the connecting column group 4, realizing multi-directional and multi-channel capillary reflux of the working fluid, increasing the reflux path of the working fluid, greatly improving the reflux efficiency and reflux effect of the liquid working fluid, and ensuring the heat dissipation effect of the heat dissipation device.

[0024] The outer copper column 1 and the inner copper column 3 respectively form a reflux path for the liquid medium, and cooperate with the connecting column group 4 to achieve multi-directional reflux, greatly improving the reflux efficiency and reflux effect of the liquid medium.

[0025] Furthermore, the top of the outer copper pillar 1, the top of the copper support pillar 2 and the top of the inner copper pillar 3 are arranged flush, and the bottom of the outer copper pillar 1, the bottom of the copper support pillar 2 and the bottom of the inner copper pillar 3 are arranged flush; synchronous interference with the VC substrate is achieved, thereby ensuring the supporting effect of the support pillar, eliminating the need to set up a large number of support pillars, and simplifying the manufacturing process of the VC substrate.

[0026] The copper support column 2 has a middle column groove 21 and an upper column groove 22. The middle column groove 21 extends in the axial direction, the inner end of the upper column groove 22 is connected to the middle column groove 21, and the outer end of the upper column groove 22 extends in the radial direction until it is through; the inner copper column 3 includes an inner longitudinal column 31 and an upper transverse column 32. The inner longitudinal column 31 is embedded in the middle column groove 21, and the upper transverse column 32 is embedded in the upper column groove 22. The inner end of the upper transverse column 32 is connected to the inner longitudinal column 31, and the outer end of the upper transverse column 32 is in contact with the outer copper column 1.

[0027] In this way, the outer copper column 1 and the copper support column 2 are capillary connected through the upper cross column 32, which is convenient for the reflux and transfer of the liquid working medium and realizes multi-directional capillary reflux.

[0028] The copper support column 2 has two upper column grooves 22, which are connected to the middle column groove 21 respectively; the inner copper column 3 includes two upper transverse columns 32, which are arranged at intervals along the inner longitudinal column 31, and the two upper transverse columns 32 and the inner longitudinal column 31 are integrally formed, and the two upper transverse columns 32 are respectively embedded with two upper column grooves 22.

[0029] In this way, the outer copper column 1 and the copper support column 2 are capillary connected through the upper cross column 32, and the two upper cross columns 32 are capillary connected in different directions, which is convenient for the reflux and transfer of the liquid working medium and realizes multi-directional capillary reflux.

[0030] The inner longitudinal column 31 is located between the two upper transverse columns 32 , and the two upper transverse columns 32 are symmetrically arranged along the inner longitudinal column 31 ; different reflux paths are separated to the maximum extent, which facilitates the reflux and transfer of the liquid working medium and improves the reflux efficiency and reflux effect of the liquid working medium.

[0031] The copper support column 2 has a lower column groove 23, the inner end of the lower column groove 23 is connected to the middle column groove 21, and the outer end of the lower column groove 23 extends in the radial direction until it penetrates; the inner copper column 3 includes a lower transverse column 33, the lower transverse column 33 is embedded in the lower column groove 23, the inner end of the lower transverse column 33 is connected to the inner longitudinal column 31, and the outer end of the lower transverse column 33 is in contact with the outer copper column 1.

[0032] In this way, the outer copper column 1 and the copper support column 2 are capillary connected through the lower cross column 33, which is convenient for the reflux and transfer of the liquid working medium and realizes multi-directional capillary reflux.

[0033] The copper support column 2 has two lower column grooves 23, which are connected to the middle column groove 21 respectively, and are symmetrically arranged along the middle column groove 21; the inner copper column 3 includes two lower cross columns 33, which are symmetrically arranged along the inner longitudinal column 31, and the two lower cross columns 33 and the inner longitudinal column 31 are integrally formed, and the two lower cross columns 33 are respectively embedded with two lower column grooves 23; along the axial direction of the copper support column 2, the upper column groove 22 and the lower column groove 23 are arranged correspondingly at both ends, and along the axial direction of the inner longitudinal column 31, the upper cross column 32 and the lower cross column 33 are arranged correspondingly at both ends.

[0034] In this way, different reflux paths are separated to the maximum extent, which facilitates the reflux and transfer of the liquid working medium and improves the reflux efficiency and reflux effect of the liquid working medium. At the same time, it facilitates the cooperation of the upper cross column 32 and the lower cross column 33 to form a working medium reflux path and improves the reflux efficiency and reflux effect of the liquid working medium.

[0035] The outer surface of the inner longitudinal column 31 is in contact with the groove wall of the middle column groove 21, and the outer surface of the copper support column 2 is in contact with the inner wall of the outer copper column 1; in this way, the coordination effect of the outer copper column 1, the copper support column 2 and the inner copper column 3 is improved, and the supporting strength and supporting effect of the support column are guaranteed.

[0036] The outer end of the upper cross column 32 is arranged in an arc shape, so that the outer end of the upper cross column 32 and the outer copper column 1 are arranged in a flat contact manner, thereby increasing the contact area between the upper cross column 32 and the outer copper column 1, and facilitating the reflux and transfer of the liquid working medium.

[0037] The outer end of the lower cross column 33 is arranged in an arc shape, so that the outer end of the lower cross column 33 and the outer copper column 1 are arranged in a flat contact manner, thereby increasing the contact area between the lower cross column 33 and the outer copper column 1, and facilitating the reflux and transfer of the liquid working medium.

[0038] The inner longitudinal column 31 is arranged in a cylindrical shape, or the inner longitudinal column 31 is arranged in a rectangular column shape, which ensures the arrangement of the upper transverse column 32 and the lower transverse column 33 and enables the inner longitudinal column 31 to have sufficient supporting force.

[0039] The copper support column 2 is arranged in a cylindrical shape, and the outer copper column 1 is arranged in a cylindrical shape, which facilitates the coordination among the outer copper column 1, the copper support column 2 and the inner copper column 3, greatly improves the supporting strength and supporting effect of the supporting column, and realizes the elimination of the need to set up a large number of supporting columns.

[0040] Of course, the copper support pillar 2 may be arranged in a rectangular column shape, and the outer copper pillar 1 may be arranged in a rectangular shape, or one of the copper support pillar 2 and the outer copper pillar 1 may be arranged in a rectangular column shape and the other may be arranged in a cylindrical shape.

[0041] Implementation example 1 of connecting column group 4: The connecting column group 4 includes a plurality of short connecting columns 41, each of which is arranged at intervals and correspondingly, and the short connecting columns 41 are extended in the radial direction, and one end of the short connecting column 41 is connected to the inner copper column 3, and the other end of the short connecting column 41 extends through the copper support column 2 and is connected to the outer copper column 1.

[0042] In this way, the capillary connection between the inner copper column 3 and the outer copper column 1 is achieved through the short connecting column 41, forming reflux paths in different directions, thereby achieving multi-directional and multi-path reflux of the liquid working medium, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0043] The short connecting columns 41 are arranged at staggered intervals along the axial direction to separate different reflux paths, thereby facilitating the reflux and transfer of the liquid working medium and improving the reflux efficiency and reflux effect of the liquid working medium.

[0044] The short connecting column 41 is arranged in a cylindrical shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0045] The short connecting column 41 may also be arranged in a rectangular column shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0046] Implementation Example 2 of the connecting column group 4: The connecting column group 4 includes a plurality of long connecting columns 42 , each of which is arranged at intervals and correspondingly, and the long connecting columns 42 are extended in the radial direction, and the long connecting columns 42 penetrate the copper support column 2 , and the two ends of the long connecting columns 42 are respectively connected to the outer copper column 1 and the inner copper column 3 in a butt-jointed manner.

[0047] In this way, the capillary connection between the inner copper column 3 and the outer copper column 1 is achieved through the long connecting column 42, forming reflux paths in different directions, thereby achieving multi-directional and multi-path reflux of the liquid working medium, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0048] The long connecting columns 42 are arranged at intervals along the axial direction to separate different reflux paths, thereby facilitating the reflux and transfer of the liquid working medium and improving the reflux efficiency and reflux effect of the liquid working medium.

[0049] The long connecting column 42 is arranged in a cylindrical shape, which is convenient for the reversing reflux and reversing transfer of the liquid working medium.

[0050] The long connecting column 42 may also be arranged in a rectangular column shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0051] The diameter of the long connecting column 42 is arranged to be large at both ends and small in the middle, which facilitates the liquid working medium to reflux toward the middle and reflux along the inner copper column 3. The inner copper column 3 has a large reflux area and range, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0052] The middle part of the long connecting column 42 forms a middle column section, and the diameter of the middle column section is gradually reduced along the direction from the two ends to the middle; it is convenient for the liquid working medium to reflux along the inner copper column 3. The inner copper column 3 has a larger reflux area and range, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0053] Along the direction from both ends to the middle of the middle column section, the middle column section is arranged in a cone shape and gradually shrinks; in this way, the liquid working medium refluxes steadily and smoothly.

[0054] Implementation example 3 of connecting column group 4: The connecting column group 4 includes multiple short connecting columns 41 and multiple long connecting columns 42. The short connecting columns 41 and the long connecting columns 42 are respectively extended in the radial direction. One end of the short connecting column 41 is connected to the inner copper column 3, and the other end of the short connecting column 41 passes through the copper support column 2 and extends to the outer copper column 1. The long connecting column 42 passes through the copper support column 2 and its two ends are respectively connected to the outer copper column 1 and the inner copper column 3.

[0055] In this way, the capillary connection between the inner copper column 3 and the outer copper column 1 is achieved through the short connecting column 41 and the long connecting column 42, forming reflux paths in different directions, thereby achieving multi-directional and multi-path reflux of the liquid working medium, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0056] The short connecting columns 41 and the long connecting columns 42 are arranged at intervals along the axial direction to separate different reflux paths, thereby facilitating the reflux and transfer of the liquid medium and improving the reflux efficiency and reflux effect of the liquid medium.

[0057] The short connecting column 41 is arranged in a cylindrical shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0058] The short connecting column 41 may also be arranged in a rectangular column shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0059] The long connecting column 42 is arranged in a cylindrical shape, which is convenient for the reversing reflux and reversing transfer of the liquid working medium.

[0060] The long connecting column 42 may also be arranged in a rectangular column shape to facilitate the reversing reflux and reversing transfer of the liquid working medium.

[0061] The diameter of the long connecting column 42 is arranged to be large at both ends and small in the middle, which facilitates the liquid working medium to reflux toward the middle and reflux along the inner copper column 3. The inner copper column 3 has a large reflux area and range, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0062] The middle part of the long connecting column 42 forms a middle column section, and the diameter of the middle column section is gradually reduced along the direction from the two ends to the middle; it is convenient for the liquid working medium to reflux along the inner copper column 3. The inner copper column 3 has a larger reflux area and range, thereby improving the reflux efficiency and reflux effect of the liquid working medium.

[0063] Along the direction from both ends to the middle of the middle column section, the middle column section is arranged in a cone shape and gradually shrinks; in this way, the liquid working medium refluxes steadily and smoothly.

[0064] 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. VC multi-channel capillary reflux support column, characterized in that: It comprises a plurality of support columns, each of which is arranged in a corresponding interval, and the support columns comprise an outer copper column, a copper support column, an inner copper column and a connecting column group, the outer copper column, the copper support column and the inner copper column are arranged in sequence, the outer copper column, the inner copper column and the connecting column group are respectively used for multi-directional capillary reflux; the connecting column group is used for the outer copper column and the inner copper column to be capillary conductively arranged, and the connecting column group is used for the transfer of liquid working fluid.

2. The VC multi-channel capillary reflux support column according to claim 1, characterized in that: The connecting column group includes a plurality of short connecting columns, each of which is arranged at intervals and in correspondence, and the short connecting columns are extended in a radial direction, and one end of the short connecting column is butt-jointed with the inner copper column, and the other end of the short connecting column extends through the copper support column and is butt-jointed with the outer copper column.

3. The VC multi-channel capillary reflux support column according to claim 1, characterized in that: The connecting column group includes a plurality of long connecting columns, each of which is arranged at intervals and in correspondence, and the long connecting columns are arranged to extend in a radial direction, and the long connecting columns penetrate the copper support column and have two ends respectively connected to the outer copper column and the inner copper column.

4. The VC multi-channel capillary reflux support column according to claim 1, characterized in that: The connecting column group includes a plurality of short connecting columns and a plurality of long connecting columns, wherein the short connecting columns and the long connecting columns are respectively extended and arranged in the radial direction, one end of the short connecting column is butt-jointed with the inner copper column, the other end of the short connecting column passes through the copper support column and extends to be butt-jointed with the outer copper column, and the long connecting column passes through the copper support column and its two ends are respectively butt-jointed with the outer copper column and the inner copper column.

5. The VC multi-channel capillary reflux support column according to any one of claims 1 to 4, characterized in that: The copper support column has a middle column groove and an upper column groove, the middle column groove extends along the axial direction, the inner end of the upper column groove is connected to the middle column groove, and the outer end of the upper column groove extends along the radial direction until it is penetrated; the inner copper column includes an inner longitudinal column and an upper transverse column, the inner longitudinal column is embedded in the middle column groove, the upper transverse column is embedded in the upper column groove, the inner end of the upper transverse column is docked with the inner longitudinal column, and the outer end of the upper transverse column is in contact with the outer copper column.

6. The VC multi-channel capillary reflux support column according to claim 5, characterized in that: The copper support column has two upper column grooves, which are connected to the middle column groove respectively; the inner copper column includes two upper transverse columns, which are arranged at intervals and in correspondence along the inner longitudinal column, the two upper transverse columns and the inner longitudinal column are integrally formed, and the two upper transverse columns are respectively embedded with two upper column grooves.

7. The VC multi-channel capillary reflux support column according to claim 6, characterized in that: The inner longitudinal column is located between the two upper transverse columns, and the two upper transverse columns are symmetrically arranged along the inner longitudinal column.

8. The VC multi-channel capillary reflux support column according to claim 5, characterized in that: The copper support column has a lower column groove, the inner end of the lower column groove is connected to the middle column groove, and the outer end of the lower column groove extends in the radial direction until it is through; the inner copper column includes a lower cross column, and the lower cross column is embedded in the lower column groove, the inner end of the lower cross column is docked with the inner longitudinal column, and the outer end of the lower cross column is in contact with the outer copper column.

9. The VC multi-channel capillary reflux support column according to claim 8, characterized in that: The copper support column has two lower column grooves, which are connected to the middle column groove respectively, and are symmetrically arranged along the middle column groove; the inner copper column includes two lower cross columns, which are symmetrically arranged along the inner longitudinal column, the two lower cross columns and the inner longitudinal column are integrally formed, and the two lower cross columns are respectively embedded with two lower column grooves; along the axial direction of the copper support column, the upper column groove and the lower column groove are arranged correspondingly at both ends, and along the axial direction of the inner longitudinal column, the upper cross column and the lower cross column are arranged correspondingly at both ends.

10. The VC multi-channel capillary reflux support column according to claim 8, characterized in that: The outer surface of the inner longitudinal column is arranged in abutment with the groove wall of the middle column groove, and the outer surface of the copper support column is arranged in abutment with the inner wall of the outer copper column.

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