A single-tube double-sided display tube hot and cold plate, its processing method, and tool

Abstract

The present invention discloses a single-tube double-sided display tube hot and cold plate, its processing method, and a tool. The hot and cold plate includes: a bottom plate and a pipeline; a pipeline groove penetrating up and down is provided on the bottom plate, and the two side surfaces of the groove are arc side surfaces recessed inwardly on both sides; the pipeline is arranged in the pipeline groove, and the pipeline fits with the side surface of the pipeline groove through pressing; a single pipeline is exposed on both sides of the bottom plate; the pipeline is provided with an inlet and an outlet for a cooling medium or a heating medium to flow into or out of the pipeline. The tool includes: a tool handle and a tool head; one side surface or both side surfaces of the tool head are arc side surfaces for processing the arc side surfaces of the pipeline groove. The method includes: making a pipeline groove penetrating up and down on the bottom plate, and the two side surfaces of which are arc side surfaces; putting the pipeline into the pipeline groove, and making the pipeline fit with the side surface of the pipeline groove through pressing up and down. Through the present invention, the hot and cold plate is thinner, and chips can be installed on both sides, which not only reduces the volume of electronic devices, but also has a faster heat dissipation or heating speed.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and particularly relates to a single-tube double-sided display cold and hot plate, a processing method thereof, and a tool. Background Art

[0002] At present, the sizes of heat-generating devices in electronic products (such as chips or other heat sources) are getting smaller and smaller, and there are multiple heat-generating devices in a system, and the heat to be solved is getting higher and higher. In order to better solve the problem of a very large local heat flux in a small area, it is usually necessary to rely on heat pipes to conduct heat out, but heat pipes have a limit on the maximum heat transfer amount.

[0003] In the prior art, the heat sink plate is formed by burying a heat pipe on the bottom plate. Only one side of the heat pipe is exposed outside. The bottom plate of the heat sink plate is thick, and only one side can be used to install electronic product heat-generating devices, resulting in a large volume and large space occupation of the product; moreover, only one side of the heat pipe dissipates heat, with a slow cooling speed and poor effect; in addition, the heat pipe is only placed in the groove of the bottom plate, and then the heat pipe is fixed to the groove with glue. The heat pipe is likely to fall out after long-term use, and the service life is short. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention provides a single-tube double-sided display cold and hot plate, a processing method thereof, and a tool. The cold and hot plate is thinner, and chips can be installed on both sides, which not only reduces the volume of electronic devices, but also has a faster heat dissipation or heating speed.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention provides a single-tube double-sided display cold and hot plate, which includes: a bottom plate and a pipeline; wherein,

[0007] A pipeline groove that penetrates up and down is provided on the bottom plate, and the two side surfaces of the pipeline groove are arc-shaped side surfaces that are recessed toward both sides;

[0008] The pipeline is arranged in the pipeline groove, and the pipeline fits with the side surface of the pipeline groove through pressing;

[0009] A single pipeline is exposed on both sides of the bottom plate;

[0010] The pipeline is provided with an inlet and an outlet for a cooling medium or a heating medium to flow in or out of the pipeline.

[0011] Preferably, the thickness of the bottom plate is less than the diameter of the pipeline before pressing.

[0012] Preferably, the diameters of the upper opening and the lower opening of the pipeline groove are greater than or equal to the diameter of the pipeline.

[0013] Preferably, the ratio of the diameter of the pipe before pressing to the depth of cut value of the arc side is a constant C.

[0014] Preferably, the constant C is any value between 10 and 13.6.

[0015] Preferably, the circumference of the pipe after being flattened is the same as the circumference of the round pipe before being flattened.

[0016] Preferably, the pipe groove and the pipe are bonded with a heat-conducting glue; or,

[0017] Nickel is sprayed on the surface of the pipe groove. Further,

[0018] The pipe groove with nickel sprayed on its surface and the pipe are welded with a solder paste.

[0019] The present invention also provides a tool for machining the arc side of the pipe groove of the single-tube double-sided display tube cold and hot plate, which includes: a tool handle and a tool tip connected to each other or a tool handle and a tool tip integrally formed; wherein,

[0020] One side or both sides of the tool tip are arc sides for machining the arc side of the pipe groove.

[0021] Preferably, the maximum transverse diameter of the tool tip is less than or equal to the diameter of the upper opening or the lower opening of the pipe groove; or,

[0022] The maximum transverse diameter of the tool tip is greater than the diameter of the upper opening or the lower opening of the pipe groove.

[0023] The present invention also provides a processing method for a single-tube double-sided display tube cold and hot plate, which includes the following steps:

[0024] S91: Fabricate a pipe groove on the bottom plate that penetrates up and down and has arc sides on both sides;

[0025] S92: Place the pipe into the pipe groove and make the pipe fit with the side of the pipe groove by pressing up and down.

[0026] Preferably, between S91 and S92, it further includes:

[0027] S101: Spray nickel on the surface of the pipe groove;

[0028] Further, after S92, it further includes:

[0029] S102: Add solder paste to the gap between the pipe and the pipe groove, and use the solder paste to weld the pipe and the pipe groove.

[0030] Preferably, after S92, it further includes:

[0031] S111: Add thermal conductive glue into the gap between the pipeline and the pipeline groove, and use the thermal conductive glue to bond the pipeline and the pipeline groove.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] (1) The single-tube double-sided exposed tube cold and hot plate, its processing method and tool provided by the present invention expose a single pipeline on both sides of the bottom plate, that is, a single-tube double-sided exposed tube. When used as a water-cooled plate for electronic devices, heat can be dissipated on both sides, with a faster heat dissipation speed and a better heat dissipation effect; and chips can be installed on both sides, reducing the volume of the electronic device; similarly, when used to heat the medium in the pipeline, heating can be performed on both sides, with a faster heating speed and a better heating effect; in addition, the double-sided is realized with a single tube, saving materials and reducing costs.

[0034] (2) The single-tube double-sided exposed tube cold and hot plate, its processing method and tool provided by the present invention make the side of the pipeline fit with the side of the pipeline groove through pressing. Compared with the existing board where the pipeline is not pressed, is exposed on one side, and the other side is supported by the bottom plate, the board is thinner, further reducing the volume and being lighter in weight; in addition, the pipeline fits with the side of the pipeline groove through pressing, and the pipeline is clamped more tightly. Compared with the existing board where the pipeline is only placed in the groove and fixed with glue, it is not easy to fall out, and is not easy to fall out even after long-term use, with a more stable structure, better earthquake resistance and a long service life.

[0035] (3) The single-tube double-sided exposed tube cold and hot plate, its processing method and tool provided by the present invention are further strengthened by using thermal conductive glue between the pipeline and the pipeline groove, with a more stable structure and a better heat conduction effect when using thermal conductive glue.

[0036] (4) The single-tube double-sided exposed tube cold and hot plate, its processing method and tool provided by the present invention spray nickel on the side of the pipeline groove and use welding paste to weld the pipeline and the pipeline groove, eliminating the need to use glue, saving the drying time of the glue, and having a more stable welded structure.

[0037] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The following further illustrates the embodiments of the present invention with reference to the drawings:

[0039] Figure 1 It is a schematic structural diagram of a single-tube double-sided exposed tube cold and hot plate according to an embodiment of the present invention;

[0040] Figure 2 is Figure 1Cross-sectional view in the A-A direction;

[0041] Figure 3 Schematic diagram of a tool for machining a pipe groove according to a preferred embodiment of the present invention;

[0042] Figure 4 Schematic structural diagram of a tool according to an embodiment of the present invention;

[0043] Figure 5 Flow chart of the processing method of a single-tube double-sided display tube cold and hot plate according to an embodiment of the present invention.

[0044] Reference numeral description: 1 - bottom plate, 2 - pipe, 3 - arc side surface, 4 - inlet, 5 - outlet;

[0045] 21 - tool handle, 22 - tool tip, 23 - arc side surface. Detailed implementation manners

[0046] The embodiments of the present invention will be described in detail below. These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given. However, the protection scope of the present invention is not limited to the following embodiments.

[0047] As Figure 1 shown is the schematic structural diagram of a single-tube double-sided display tube cold and hot plate according to an embodiment of the present invention. As Figure 2 shown is Figure 1 the cross-sectional view in the A-A direction of

[0048] Please refer to Figure 1 , the single-tube double-sided display tube cold and hot plate of this embodiment includes: a bottom plate 1 and a pipe 2. Among them, a pipe groove penetrating up and down is provided on the bottom plate 1, and the two side surfaces of the pipe groove are arc side surfaces 3 recessed towards both sides. The pipe is arranged in the pipe groove, and the pipe fits with the side surface of the pipe groove through pressing; after double-sided machining by a machining center, a single pipe 2 is exposed on both sides of the bottom plate 1. An inlet 4 and an outlet 5 are provided on the pipe 2 for a cooling medium or a heating medium to flow in or out of the pipe. Of course, in different embodiments, Figure 1 the positions of the inlet 4 and the outlet 5 in

[0049] In this embodiment, the thickness of the bottom plate is less than the diameter of the pipe before pressing, so that the thickness of the cold and hot plate can be thinner. For a pipe with a diameter of 9.52 mm, the thickness of the bottom plate can be ≤ 7 mm, such as Figure 2 6 mm in

[0050] In a preferred embodiment, the diameters of the upper opening and the lower opening of the pipe groove are greater than or equal to the diameter of the pipe, so that it is convenient to put the pipe in, and after the pipe is pressed, it can be made thinner, the pipe is clamped more tightly in the pipe groove, the structure is more stable, and it is less likely to fall out.

[0051] In a preferred embodiment, the ratio of the diameter of the pipe before pressing to the cutting depth value of the arc side is a constant C. The larger the diameter of the pipe, the larger the cutting depth value of the arc side. Preferably, as Figure 3 shown, when the pipe diameter is 9.52 mm and the cutting depth value of the arc side is 0.8 mm, the cold and hot plates have the best effect, and the constant C is 11.9. Of course, in different embodiments, when the pipe diameter is 9.52 mm, a relatively good effect can be achieved when the cutting depth value of the arc side ranges from 0.7 mm to 0.95 mm, that is, a relatively good effect can be achieved when the constant C is in the range of 10 to 13.6.

[0052] In a preferred embodiment, the circumference of the pipe after being flattened is the same as the circumference of the round pipe before being flattened. The circumference of the pipe remains the same before and after being flattened, avoiding large-sized protrusions inside the pipe after being pressed, and reducing the flow resistance of the medium inside the pipe.

[0053] In a preferred embodiment, the pipe groove and the pipe are also bonded with a heat-conducting glue, making the structure more stable, and the heat-conducting glue has a better heat-conducting effect, so the heat dissipation or heating effect of the cold and hot plates is better.

[0054] In a preferred embodiment, in order to save time, nickel is sprayed on the surface of the pipe groove. Further, the pipe groove with nickel sprayed on the surface and the pipe are welded with solder paste. Since the bottom plate is generally made of aluminum, and the material of the pipe is generally copper, and the two cannot be directly welded, nickel is sprayed on the surface of the pipe groove to enable it to be welded with the pipe. This not only increases the stability but also saves the time for the glue to dry, with higher processing efficiency; at the same time, the solder paste is metal, and welding is carried out using the solder paste through reflow soldering, and the heat-conducting effect between metals is better.

[0055] In a preferred embodiment, the pipe can be made of stainless steel pipe, aluminum pipe, or red copper pipe. Preferably, it is a red copper pipe, which is corrosion-resistant, the medium in the pipe is not easy to leak out, and it has a long service life.

[0056] As Figure 4 shown is a schematic structural diagram of a tool according to an embodiment of the present invention.

[0057] Please refer to Figure 4 , the tool of this embodiment is used to machine the arc side of the pipe groove of the single-tube double-sided display tube cold and hot plate in the above embodiment. It includes: a tool handle 21 and a tool tip 22 that are connected to each other, or a tool handle 21 and a tool tip 22 that are integrally formed. Among them, the two side surfaces of the tool tip are arc side surfaces 23, which are used to machine the arc side of the pipe groove.

[0058] In different embodiments, it can also be that one side surface of the tool tip is an arc side surface 23, first machining one arc side of the pipe groove, and then turning to machine the other arc side.

[0059] In one embodiment, the maximum lateral diameter of the tool head is less than or equal to the diameter of the upper opening or the lower opening of the pipe groove. When grooving, first groove vertically to form a rectangular groove, then insert the tool into the groove from the upper opening or the lower opening of the groove. First, move the tool to one side to machine the arc side on one side, and then move the tool to the other side to machine the arc side on the other side.

[0060] In one embodiment, the maximum lateral diameter of the tool is greater than the diameter of the upper opening or the lower opening of the pipe groove, and its maximum lateral diameter can be equal to the maximum diameter of the pipe groove. The arc sides on both sides can be machined simultaneously. A relatively large opening can be made at the beginning or the end of the pipe groove on the bottom plate to allow the tool to be inserted, and then the tool is moved along the direction of grooving the pipe groove to machine the arc sides on both sides simultaneously.

[0061] As Figure 5 shown is a flowchart of the processing method for the single-tube double-sided display tube cold and hot plate according to an embodiment of the present invention.

[0062] Please refer to Figure 5 , the processing method of this embodiment is used for the processing of the single-tube double-sided display tube cold and hot plate in the above embodiment, and it includes the following steps:

[0063] S91: Make a pipe groove on the bottom plate that penetrates up and down and has arc sides on both sides;

[0064] S92: Place the pipe into the pipe groove and make the pipe fit with the side of the pipe groove by pressing up and down.

[0065] In a preferred embodiment, in order to increase the stability of the cold and hot plate, after S92, it further includes:

[0066] S111: Add thermal conductive glue to the gap between the pipe and the pipe groove, and use the thermal conductive glue to bond the pipe and the pipe groove.

[0067] In a preferred embodiment, in order to increase the stability of the cold and hot plate, save time, and improve processing efficiency, between S91 and S92, it further includes:

[0068] S101: Spray nickel on the surface of the pipe groove;

[0069] Further, after S92, it further includes:

[0070] S102: Add solder paste to the gap between the pipe and the pipe groove, and use the solder paste to weld the pipe and the pipe groove through reflow soldering.

[0071] In a preferred embodiment, the double-sided surfaces of the above single-tube double-sided display tube cold and hot plate are processed flat and can be used to install heat-generating devices with relatively high flatness requirements.

[0072] Only the preferred embodiments of the present invention are disclosed herein. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, rather than to limit the present invention. Any modifications and changes made by those skilled in the art within the scope of the specification shall fall within the scope protected by the present invention.

Claims

1. A single-tube double-sided display tube hot and cold plate, characterized in that, Including: A bottom plate and a pipe; wherein, A pipe groove penetrating up and down is provided on the bottom plate, and the two side surfaces of the pipe groove are arc side surfaces recessed towards both sides; The pipe is arranged in the pipe groove, and the pipe fits with the side surface of the pipe groove through pressing; A single pipe is exposed on both sides of the bottom plate; The pipe is provided with an inlet and an outlet for a cooling medium or a heating medium to flow into or out of the pipe; The thickness of the bottom plate is less than the diameter of the pipe before pressing; The diameters of the upper opening and the lower opening of the pipe groove are greater than or equal to the diameter of the pipe; The ratio of the diameter of the pipe before pressing to the cutting depth value of the arc side surface is a constant C; The double-sided surfaces of the single-pipe double-sided display tube hot and cold plate are processed flat, and heating devices can be installed on both double-sided surfaces of the single-pipe double-sided display tube hot and cold plate.

2. The single-tube double-sided display tube cold and hot plate according to claim 1, characterized in that The constant C is any value between 10 and 13.

6.

3. The single-tube double-sided display tube hot and cold plate according to claim 1, wherein The pipe groove and the pipe are bonded with heat-conducting glue; or, nickel is sprayed on the surface of the pipe groove, and the pipe groove with nickel sprayed on the surface and the pipe are welded with solder paste.

4. A cutting tool, characterized in that, For processing the arc side surface of the pipe groove of the single-pipe double-sided display tube hot and cold plate according to any one of claims 1 to 3; it includes: A tool holder and a tool head connected to each other or a tool holder and a tool head integrally formed; wherein, one side surface or both side surfaces of the tool head are arc side surfaces for processing the arc side surface of the pipe groove.

5. The cutting tool according to claim 4, characterized in that, The maximum lateral diameter of the tool head is less than or equal to the diameter of the upper opening or the lower opening of the pipe groove; or, the maximum lateral diameter of the tool head is greater than the diameter of the upper opening or the lower opening of the pipe groove.

6. A processing method for a single-tube double-sided display tube hot and cold plate, characterized in that, For processing the single-pipe double-sided display tube hot and cold plate according to any one of claims 1 to 3, it includes the following steps: S91: Make a pipe groove penetrating up and down on the bottom plate, and the two side surfaces are arc side surfaces; S92: Put the pipe into the pipe groove, and make the pipe fit with the side surface of the pipe groove through up and down pressing.

7. The processing method of the single-tube double-sided display tube hot and cold plate according to claim 6, characterized in that, Between S91 and S92, it further includes: S101: Spray nickel on the surface of the pipe groove; After S92, it further includes: S102: Add solder paste into the gap between the pipe and the pipe groove, and use the solder paste to weld the pipe and the pipe groove.

8. The processing method of the single-tube double-sided display tube cold and hot plate according to claim 6, characterized in that, After S92, it further includes: S111: Add heat-conducting glue into the gap between the pipe and the pipe groove, and use the heat-conducting glue to bond the pipe and the pipe groove.

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