An ultra-thin heat pipe with concave teeth and groove shape

Abstract

The present invention discloses an inner concave tooth type ditch-shaped ultra-thin heat pipe, comprising an ultra-thin heat pipe outer tube, wherein the ultra-thin heat pipe outer tube has an equidistant array of ditch-shaped pipes, the ditch-shaped pipes comprise a tube shell and a ditch-shaped inner tube, the ditch-shaped inner tube is slidably installed in the tube shell, the inner wall of the ditch-shaped inner tube has a ring-shaped equidistant array of protrusions, a groove is arranged between two adjacent groups of protrusions, a fluid layer is arranged in the ditch-shaped inner tube, the ultra-thin heat pipe outer tube has a waist-shaped structure, the tube shells on both sides of the ultra-thin heat pipe outer tube are concentrically arranged with the two sides of the ultra-thin heat pipe outer tube, the two adjacent groups of the tube shells are tangently arranged, a distillation tube and a condensation tube are respectively arranged at both ends of the tube shell, the tube shell, the distillation tube and the condensation tube are connected, a push plate assembly is slidably installed in the tube shell, the push plate assembly comprises a push plate, and shift blocks are symmetrically arranged on both sides of the push plate, so that the heat removal power is increased and the temperature difference is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-thin heat pipes, and in particular to an ultra-thin heat pipe in the shape of an inner concave toothed channel. Background Art

[0002] As the product structure of the microcomputer industry (laptops, tablets) is moving towards lighter, thinner, shorter, and smaller, and the processor is moving towards higher speed and higher power. However, as product performance continues to improve, the problem of heat generation is becoming increasingly serious, and the heat generation of electronic components is increasing. To solve the above problem, many passive heat transfer elements have been proposed, such as ultra-thin heat pipes, loop heat pipes, flat heat pipes, steam tank heat spreaders, and fins. A heat pipe is a heat dissipation device with high thermal conductivity. It consists of a tube shell, a liquid wick, and an end cap. In the evaporation section of the heat pipe, the working liquid in the tube core evaporates due to heat and takes away heat. This heat is the latent heat of evaporation of the working liquid. The steam flows from the steam channel to the condensation section of the heat pipe, condenses into liquid, and releases latent heat at the same time. Under the action of capillary force, the liquid flows back to the evaporation section, thus completing a closed cycle, thereby transferring a large amount of heat from the heating section to the heat dissipation section.

[0003] The existing heat pipe manufacturing process is complicated, and often uses a capillary structure to be directly placed, but the pipe diameter is too small, resulting in high processing accuracy and difficulty, and low efficiency; or the core is first placed in the metal tube shell to form a gap, and then metal powder is filled into the gap and sintered to form a capillary structure on the surface of the tube shell, but this method cannot form a capillary structure of the desired shape (such as a line, or multiple branches, etc.).

[0004] To this end, we propose an ultra-thin heat pipe with an inner concave tooth groove shape, which uses a groove tube inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference. Summary of the invention

[0005] The purpose of the present invention is to provide an ultra-thin heat pipe with an inner concave tooth groove shape, which adopts a groove tube inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inner concave tooth type groove-shaped ultra-thin heat pipe, comprising an ultra-thin heat pipe outer tube, wherein the outer tube of the ultra-thin heat pipe has groove-shaped pipes in an equidistant array, wherein the groove-shaped pipe comprises a tube shell and a groove-shaped inner tube, wherein the groove-shaped inner tube is slidably installed in the tube shell, wherein the inner wall of the groove-shaped inner tube has protrusions in an annular equidistant array, wherein a groove is arranged between two adjacent groups of protrusions, and wherein a fluid layer is arranged in the groove-shaped inner tube.

[0007] Preferably, the outer tube of the ultra-thin heat pipe is in a waist-shaped structure, the tube shells on both sides of the inner side of the ultra-thin heat pipe are concentrically arranged with the two sides of the ultra-thin heat pipe, and the two adjacent groups of the tube shells are tangentially arranged.

[0008] Preferably, a distillation tube and a condenser are respectively provided at both ends of the tube shell, and the tube shell, the distillation tube and the condenser are connected.

[0009] Preferably, a push plate assembly is slidably installed in the tube shell, the push plate assembly includes a push plate, and shift blocks are symmetrically arranged on both sides of the push plate. The push plate and the tube shell are clearance-matched, and one side of the push plate is fixedly connected to the ditch-shaped inner tube.

[0010] Preferably, slide grooves are provided on both sides of the tube shell, and the shifting block and the slide grooves are clearance-matched.

[0011] Preferably, a liquid injection hole is opened on one side of the tube wall of the tube shell.

[0012] Preferably, sealing plates are fixedly installed on both sides of the outer tube of the ultra-thin heat pipe.

[0013] Preferably, the cross-sectional shape of the groove is rectangular, and the depth of the groove is greater than 0.01 mm and less than 0.05 mm.

[0014] Preferably, the fluid layer is sealed in the channel-shaped inner tube by two sets of sealing plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A trench pipe is used inside the ultra-thin heat pipe to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference;

[0017] 2. A push plate assembly is arranged in the tube shell. After the groove protrusion of the ditch-shaped inner tube is processed and formed and fixedly connected with the push plate, the ditch-shaped inner tube can be driven to move in the tube shell by pushing the push plate, which is convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a channel-shaped pipeline of an inner concave tooth-type channel-shaped ultra-thin heat pipe of the present invention;

[0019] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a concave tooth-type trench-shaped ultra-thin heat pipe according to the present invention;

[0020] Figure 3 It is a schematic diagram of a side cross-sectional structure of an ultra-thin heat pipe with an inner concave tooth-type trench shape according to the present invention;

[0021] Figure 4It is a schematic diagram of the front cross-sectional structure of a channel-shaped pipe of an inner concave tooth-type channel-shaped ultra-thin heat pipe of the present invention;

[0022] Figure 5 The present invention is a schematic diagram of a side cross-sectional structure of a channel-shaped pipe of an inner concave tooth type channel-shaped ultra-thin heat pipe.

[0023] In the figure: 1. Ultra-thin heat pipe outer tube; 2. Ditch-shaped pipe; 201. Tube shell; 202. Ditch-shaped inner tube; 203. Protrusion; 204. Groove; 205. Slide; 3. Fluid layer; 4. Distillation tube; 5. Condenser; 6. Push plate assembly; 601. Push plate; 602. Diverter block; 7. Liquid injection hole; 8. Sealing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the specification.

[0027] Example 1

[0028] See also Figure 1-5The present invention provides a technical solution: an inner concave tooth type channel-shaped ultra-thin heat pipe, comprising an ultra-thin heat pipe outer tube 1, wherein the ultra-thin heat pipe outer tube 1 has a channel-shaped pipe 2 in an equidistant array, wherein the channel-shaped pipe 2 comprises a tube shell 201 and a channel-shaped inner tube 202, wherein a liquid injection hole 7 is provided on one side of the tube wall of the tube shell 201, wherein the outer tube 1 of the ultra-thin heat pipe is in a waist-shaped structure, wherein the tube shells 201 on both sides of the inner side of the ultra-thin heat pipe outer tube 1 are concentrically arranged with the two sides of the ultra-thin heat pipe outer tube 1, wherein two groups of adjacent tube shells 201 are tangentially arranged, wherein the channel-shaped inner tube 202 is slidably installed in the tube shell 201, wherein the inner wall of the channel-shaped inner tube 202 has a protrusion 203 in an annular equidistant array, wherein two adjacent groups of protrusions 203 are arranged in a circular ... 03 is provided with a groove 204, the cross-sectional shape of the groove 204 is rectangular, the cross-section of the groove 204 is determined according to the texture of the fluid layer 3, and a rectangular cross-sectional ditch tube is used inside to improve the capillary force of distilled water in a vacuum environment, accelerate evaporation and condensation, increase the heat removal power, and reduce the temperature difference; and the depth of the groove 204 is greater than 0.01mm and less than 0.05mm, and slide grooves 205 are provided on both sides of the tube shell 201, and the shift block 602 and the slide groove 205 are clearance-matched, and a fluid layer 3 is provided in the ditch-shaped inner tube 202, and the fluid layer 3 is sealed in the ditch-shaped inner tube 202 by two sets of sealing plates 8, and sealing plates 8 are fixedly installed on both sides of the ultra-thin heat pipe outer tube 1.

[0029] A distillation tube 4 and a condensation tube 5 are respectively arranged at both ends of the tube shell 201. The tube shell 201, the distillation tube 4 and the condensation tube 5 are connected. A push plate assembly 6 is slidably installed in the tube shell 201. The push plate assembly 6 includes a push plate 601. The push plate 601 has symmetrically arranged blocks 602 on both sides. The push plate 601 and the tube shell 201 are clearance-matched, and one side of the push plate 601 is fixedly connected to the ditch-shaped inner tube 202.

[0030] Example 2

[0031] See also Figure 1-5The present invention provides a technical solution: an inner concave tooth type channel-shaped ultra-thin heat pipe, comprising an ultra-thin heat pipe outer tube 1, wherein the ultra-thin heat pipe outer tube 1 has a channel-shaped pipe 2 in an equidistant array, wherein the channel-shaped pipe 2 comprises a tube shell 201 and a channel-shaped inner tube 202, wherein a liquid injection hole 7 is provided on one side of the tube wall of the tube shell 201, wherein the outer tube 1 of the ultra-thin heat pipe is in a waist-shaped structure, wherein the tube shells 201 on both sides of the inner side of the ultra-thin heat pipe outer tube 1 are concentrically arranged with the two sides of the ultra-thin heat pipe outer tube 1, wherein two groups of adjacent tube shells 201 are tangentially arranged, wherein the channel-shaped inner tube 202 is slidably installed in the tube shell 201, wherein the inner wall of the channel-shaped inner tube 202 has a protrusion 203 in an annular equidistant array, wherein two adjacent groups of protrusions 203 are arranged in a circular ... 03 is provided with a groove 204, the cross-sectional shape of the groove 204 is rectangular, and the cross-sectional shape of the groove 204 is determined according to the texture of the fluid layer 3. A trapezoidal cross-sectional channel tube is used inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference; and the depth of the groove 204 is greater than 0.01mm and less than 0.05mm, and slide grooves 205 are provided on both sides of the tube shell 201, and the shift block 602 and the slide groove 205 are clearance-matched, and a fluid layer 3 is provided in the channel-shaped inner tube 202, and the fluid layer 3 is sealed in the channel-shaped inner tube 202 by two sets of sealing plates 8, and sealing plates 8 are fixedly installed on both sides of the ultra-thin heat pipe outer tube 1.

[0032] A distillation tube 4 and a condensation tube 5 are respectively arranged at both ends of the tube shell 201. The tube shell 201, the distillation tube 4 and the condensation tube 5 are connected. A push plate assembly 6 is slidably installed in the tube shell 201. The push plate assembly 6 includes a push plate 601. The push plate 601 has symmetrically arranged blocks 602 on both sides. The push plate 601 and the tube shell 201 are clearance-matched, and one side of the push plate 601 is fixedly connected to the ditch-shaped inner tube 202.

[0033] Example 3

[0034] See also Figure 1-5The present invention provides a technical solution: an inner concave tooth type channel-shaped ultra-thin heat pipe, comprising an ultra-thin heat pipe outer tube 1, wherein the ultra-thin heat pipe outer tube 1 has a channel-shaped pipe 2 in an equidistant array, wherein the channel-shaped pipe 2 comprises a tube shell 201 and a channel-shaped inner tube 202, wherein a liquid injection hole 7 is provided on one side of the tube wall of the tube shell 201, wherein the ultra-thin heat pipe outer tube 1 is in a waist-shaped structure, wherein the tube shells 201 on both sides of the inner side of the ultra-thin heat pipe outer tube 1 are concentrically arranged with the two sides of the ultra-thin heat pipe outer tube 1, wherein two groups of adjacent tube shells 201 are tangentially arranged, wherein the channel-shaped inner tube 202 is slidably installed in the tube shell 201, wherein the inner wall of the channel-shaped inner tube 202 has protrusions 203 in an annular equidistant array, wherein two adjacent groups of protrusions 203 are arranged in a circular ... 3 is provided with a groove 204, the cross-sectional shape of the groove 204 is triangular, and the cross-sectional shape of the groove 204 is determined according to the texture of the fluid layer 3. A triangular cross-sectional channel tube is used inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference; and the depth of the groove 204 is greater than 0.01mm and less than 0.05mm, and slide grooves 205 are provided on both sides of the tube shell 201, and the shift block 602 and the slide groove 205 are gap-matched, and a fluid layer 3 is provided in the channel-shaped inner tube 202, and the fluid layer 3 is sealed in the channel-shaped inner tube 202 by two sets of sealing plates 8, and sealing plates 8 are fixedly installed on both sides of the ultra-thin heat pipe outer tube 1.

[0035] See also Figure 1 and Figure 4 A distillation tube 4 and a condensation tube 5 are respectively arranged at both ends of the tube shell 201. The tube shell 201, the distillation tube 4 and the condensation tube 5 are connected. A push plate assembly 6 is slidably installed in the tube shell 201. The push plate assembly 6 includes a push plate 601. The push plates 602 are symmetrically arranged on both sides of the push plate 601. The push plate 601 and the tube shell 201 are clearance-matched, and one side of the push plate 601 is fixedly connected to the ditch-shaped inner tube 202.

[0036] Working principle: a ditch-shaped pipe 2 is slidably installed in the outer tube 1 of the ultra-thin heat pipe. When manufacturing, the ditch-shaped pipe 2 is set as two parts, a tube shell 201 and a ditch-shaped inner tube 202, and the ditch-shaped inner tube 202 is slidably installed in the tube shell 201, which is convenient for processing the ditch-shaped inner tube 202. The inside of the ditch-shaped inner tube 202 adopts a ditch tube structure, including protrusions 203 and grooves 204 arranged at intervals. In order to facilitate processing and installation, a push plate assembly 6 is slidably installed in the tube shell 201. When in use, the ditch-shaped inner tube 202 is fixedly connected to one side of the push plate 601, and the push block 602 is moved to realize the installation of the ditch-shaped inner tube 202. The entire ultra-thin heat pipe can improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, increase the heat removal power, and reduce the temperature difference.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin heat pipe with an inner concave tooth groove shape, comprising an ultra-thin heat pipe outer tube (1), characterized in that: The ultra-thin heat pipe outer tube (1) has a channel-shaped tube (2) in an equidistant array inside. The channel-shaped tube (2) comprises a tube shell (201) and a channel-shaped inner tube (202). The channel-shaped inner tube (202) is slidably mounted inside the tube shell (201). The inner wall of the channel-shaped inner tube (202) has protrusions (203) in an annular equidistant array. A groove (204) is provided between two adjacent groups of protrusions (203). A fluid layer (3) is provided inside the channel-shaped inner tube (202). The ultra-thin heat pipe outer tube (1) has a waist-shaped structure. The tube shells (201) on both sides of the ultra-thin heat pipe outer tube (1) are concentrically arranged with the two sides of the ultra-thin heat pipe outer tube (1). The two adjacent groups of the tube shells (201) are tangentially arranged. The two ends of the tube shell (201) are respectively provided with a distillation tube (4) and a condensation tube (5). The tube shell (201), the distillation tube (4) and the condensation tube (5) are ) are connected; a push plate assembly (6) is slidably installed in the tube shell (201), the push plate assembly (6) comprises a push plate (601), and shift blocks (602) are symmetrically arranged on both sides of the push plate (601), the push plate (601) and the tube shell (201) are clearance-matched, and one side of the push plate (601) is fixedly connected to the ditch-shaped inner tube (202); slide grooves (205) are provided on both sides of the tube shell (201), and the shift blocks (602) and the slide grooves (205) are clearance-matched; a liquid injection hole (7) is provided on one side of the tube wall of the tube shell (201); sealing plates (8) are fixedly installed on both sides of the ultra-thin heat pipe outer tube (1); the cross-sectional shape of the groove (204) is set in a rectangular shape, and the depth of the groove (204) is greater than 0.01 mm and less than 0.05 mm; the fluid layer (3) is sealed in the ditch-shaped inner tube (202) by two sets of sealing plates (8).

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