CN111397415A - An ultra-thin heat pipe with concave teeth - Google Patents

Abstract

The invention discloses a groove-shaped ultra-thin heat pipe with concave teeth, which comprises an outer tube of the ultra-thin heat pipe. There are ditch-shaped pipes in an equidistant array in the outer tube of the ultra-thin heat pipe. The ditch-shaped inner tube is slidably installed in the tube shell, the inner wall of the ditch-shaped inner tube is provided with protrusions in a circular equidistant array, and a groove is arranged between the adjacent two groups of protrusions. A fluid layer is provided, the outer tube of the ultra-thin heat pipe is arranged in a waist-shaped structure, the tube shells on both sides of the outer tube of the ultra-thin heat pipe are arranged concentrically with the two sides of the outer tube of the ultra-thin heat pipe, and two groups of adjacent tubes are arranged. The shells are arranged tangentially, and the two ends of the shell are respectively provided with a distillation tube and a condensation tube. The plate assembly includes a push plate, and two sides of the push plate are symmetrically arranged with dials, so that the heat removal power is increased and the temperature difference is reduced.

Description

An ultra-thin heat pipe with concave teeth

technical field

The invention relates to the technical field of ultra-thin heat pipes, in particular to an ultra-thin heat pipe in the shape of a groove with concave teeth.

Background technique

As the product structure of the microcomputer industry (notebook computer, tablet computer) is becoming lighter, thinner and shorter, and the processor is developing in the direction of high speed and high power. However, in the process of continuous improvement of product performance, the problem of heat generation is becoming more and more serious, and the heat generation of electronic components is increasing. In order to solve the above problems, many passive heat transfer components have been proposed one after another, such as: ultra-thin heat pipes, loop heat pipes , plate heat pipe, steam tank soaker and fins, etc. A heat pipe is a heat dissipation device with high thermal conductivity. It consists of a tube shell, a liquid absorbing core and an end cover. In the evaporation section of the heat pipe, the working liquid in the tube core is heated and evaporated, and the heat is taken away, which is the heat of the working liquid. The latent heat of evaporation, the steam flows from the steam channel to the condensation section of the heat pipe, condenses into a liquid, and releases latent heat at the same time. cooling section.

The existing heat pipe manufacturing process is complicated, and the capillary structure is often used for direct placement. However, the small diameter of the pipe leads to greater processing accuracy and difficulty, and the efficiency is low; The gap is filled with metal powder and sintered to form a capillary structure on the surface of the tube shell, but this method cannot form a capillary structure with the desired shape (such as lines, or multi-branched arrangements, etc.).

To this end, we propose a groove-shaped ultra-thin heat pipe with concave teeth. The internal use of a ditch tube 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.

SUMMARY OF THE INVENTION

The object of the present invention is to provide an ultra-thin heat pipe of inner concave tooth type trench shape, which adopts a trench pipe inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, improve the heat removal power, and reduce the temperature difference, so as to solve the above problems. Issues raised in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: an ultra-thin heat pipe with a concave tooth type trench-shaped, comprising an outer tube of an ultra-thin heat pipe, and there are trench-shaped pipes in an equidistant array in the outer tube of the ultra-thin heat pipe. The pipeline includes 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 circular equidistant array with protrusions, and a concave is arranged between the adjacent two groups of protrusions. The groove-shaped inner tube is provided with a fluid layer.

Preferably, the outer tube of the ultra-thin heat pipe is arranged in a waist-shaped structure, the tube shells on both sides of the outer tube of the ultra-thin heat pipe are arranged concentrically with the two sides of the outer tube of the ultra-thin heat pipe, and the two adjacent sets of the tube shells are arranged concentrically. Tangency setting.

Preferably, both ends of the tube shell are respectively provided with a distillation tube and a condensation tube, and the tube shell, the distillation tube and the condensation tube are arranged in communication.

Preferably, a push plate assembly is slidably installed in the tube shell, the push plate assembly includes a push plate, and the push plates are symmetrically arranged on both sides of the push plate. The side and the trench-like inner tube are fixedly connected.

Preferably, a chute is provided on both sides of the tube shell, and the dial and the chute are in clearance fit.

Preferably, a liquid injection hole is provided on one side of the tube wall of the tube shell.

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

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.

Preferably, the fluid layer is sealed in the ditch-shaped inner tube by two sets of sealing plates.

Compared with the prior art, the beneficial effects of the present invention are:

1. The trench tube 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 antipyretic power and reduce the temperature difference;

2. A push plate assembly is arranged in the tube shell. After processing and forming the groove of the ditch-shaped inner tube, it is fixedly connected with the push plate, and the push plate can be moved to drive the ditch-shaped inner tube to move in the tube shell, which is convenient for installation. and disassembly.

Description of drawings

1 is a schematic diagram of the three-dimensional structure of a trench-shaped pipe of a concave-tooth-type trench-shaped ultra-thin heat pipe of the present invention;

2 is a schematic partial cross-sectional structural schematic diagram of a front view of an inner concave ditch-shaped ultra-thin heat pipe of the present invention;

Fig. 3 is a side view sectional structural schematic diagram of an inner concave tooth type trench-shaped ultra-thin heat pipe of the present invention;

4 is a schematic cross-sectional structural schematic diagram of a trench-shaped pipe of a kind of inner concave-tooth-type trench-shaped ultra-thin heat pipe according to the present invention;

FIG. 5 is a schematic side cross-sectional structural diagram of a trench-shaped pipe of an inner concave-tooth-type trench-shaped ultra-thin heat pipe according to the present invention.

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, chute; 3, fluid layer; 4 , distillation tube; 5, condensation tube; 6, push plate assembly; 601, push plate; 602, dial block; 7, injection hole; 8, sealing plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying what is indicated. A device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific conditions of the description.

Example 1

Referring to FIGS. 1-5, the present invention provides a technical solution: an ultra-thin heat pipe with a concave tooth type trench shape, including an ultra-thin heat pipe outer pipe 1, and an equidistant array inside the ultra-thin heat pipe outer pipe 1 has trench-shaped heat pipes. Pipe 2, the ditch-shaped pipeline 2 includes a tube shell 201 and a ditch-shaped inner tube 202, a liquid injection hole 7 is opened on one side of the tube wall of the tube shell 201, and the outer tube 1 of the ultra-thin heat pipe is set in a waist-shaped structure. , the tube shells 201 on both sides of the ultra-thin heat pipe outer tube 1 are arranged concentrically with both sides of the ultra-thin heat pipe outer tube 1, and the two groups of adjacent tube shells 201 are arranged tangentially, and the ditch-shaped inner tube 202 It is slidably installed in the tube shell 201, the inner wall of the ditch-shaped inner tube 202 has a circular equidistant array of protrusions 203, and a groove 204 is provided between the adjacent two groups of protrusions 203. The cross-sectional shape of the groove 204 It is arranged in a rectangular shape, and the cross-section of the groove 204 is determined according to the texture of the fluid layer 3, and a rectangular cross-section ditch tube is used inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, and improve the antipyretic power and reduce the temperature difference; and The depth of the groove 204 is greater than 0.01mm and less than 0.05mm, the two sides of the tube shell 201 are provided with chute 205, the dial 602 and the chute 205 are in clearance fit, and the ditch-shaped inner tube 202 is provided with a fluid layer 3. The fluid layer 3 is sealed in the trench-shaped inner tube 202 by two sets of sealing plates 8 , and the sealing plates 8 are fixedly installed on both sides of the outer tube 1 of the ultra-thin heat pipe.

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 communicated and arranged, and a push plate assembly 6 is slidably installed in the tube shell 201. The push plate assembly 6 includes a push plate 601 , two sides of the push plate 601 are symmetrically provided with dial blocks 602 , the push plate 601 and the tube shell 201 are in clearance fit, and one side of the push plate 601 is fixedly connected to the ditch-shaped inner tube 202 .

Example 2

Referring to FIGS. 1-5, the present invention provides a technical solution: an ultra-thin heat pipe with a concave tooth type trench shape, including an ultra-thin heat pipe outer pipe 1, and an equidistant array inside the ultra-thin heat pipe outer pipe 1 has trench-shaped heat pipes. Pipe 2, the ditch-shaped pipeline 2 includes a tube shell 201 and a ditch-shaped inner tube 202, a liquid injection hole 7 is opened on one side of the tube wall of the tube shell 201, and the outer tube 1 of the ultra-thin heat pipe is set in a waist-shaped structure. , the tube shells 201 on both sides of the ultra-thin heat pipe outer tube 1 are arranged concentrically with both sides of the ultra-thin heat pipe outer tube 1, and the two groups of adjacent tube shells 201 are arranged tangentially, and the ditch-shaped inner tube 202 It is slidably installed in the tube shell 201, the inner wall of the ditch-shaped inner tube 202 has a circular equidistant array of protrusions 203, and a groove 204 is provided between the adjacent two groups of protrusions 203. The cross-sectional shape of the groove 204 It is set in a rectangular shape, and the cross-sectional shape of the groove 204 is determined according to the texture of the fluid layer 3, and a trapezoidal cross-sectional ditch tube is used inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, and improve 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, the two sides of the tube shell 201 are provided with chute 205, the dial 602 and the chute 205 are in clearance fit, and the ditch-shaped inner tube 202 is provided with fluid. Layer 3, the fluid layer 3 is sealed in the trench-shaped inner tube 202 by two sets of sealing plates 8, and the sealing plates 8 are fixedly installed on both sides of the outer tube 1 of the ultra-thin heat pipe.

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 communicated and arranged, and a push plate assembly 6 is slidably installed in the tube shell 201. The push plate assembly 6 includes a push plate 601 , two sides of the push plate 601 are symmetrically provided with dial blocks 602 , the push plate 601 and the tube shell 201 are in clearance fit, and one side of the push plate 601 is fixedly connected to the ditch-shaped inner tube 202 .

Example 3

Referring to FIGS. 1-5, the present invention provides a technical solution: an ultra-thin heat pipe with a concave tooth type trench shape, including an ultra-thin heat pipe outer pipe 1, and an equidistant array inside the ultra-thin heat pipe outer pipe 1 has trench-shaped heat pipes. Pipe 2, the ditch-shaped pipeline 2 includes a tube shell 201 and a ditch-shaped inner tube 202, a liquid injection hole 7 is opened on one side of the tube wall of the tube shell 201, and the outer shape of the ultra-thin heat pipe outer tube 1 is set in a waist-shaped structure , the tube shells 201 on both sides of the ultra-thin heat pipe outer tube 1 are arranged concentrically with both sides of the ultra-thin heat pipe outer tube 1, and the two groups of adjacent tube shells 201 are arranged tangentially, and the ditch-shaped inner tube 202 It is slidably installed in the tube shell 201, the inner wall of the ditch-shaped inner tube 202 has a circular equidistant array with protrusions 203, and a groove 204 is provided between the adjacent two groups of protrusions 203. The cross-sectional shape of the groove 204 It is arranged in a triangle shape, and the cross-sectional shape of the groove 204 is determined according to the texture of the fluid layer 3, and a triangular cross-section ditch pipe is used inside to improve the capillary force of distilled water in a vacuum environment, speed up evaporation and condensation, and improve 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, the two sides of the tube shell 201 are provided with chute 205, the dial 602 and the chute 205 are in clearance fit, and the ditch-shaped inner tube 202 is provided with fluid. Layer 3, the fluid layer 3 is sealed in the trench-shaped inner tube 202 by two sets of sealing plates 8, and the sealing plates 8 are fixedly installed on both sides of the outer tube 1 of the ultra-thin heat pipe.

Please refer to FIG. 1 and FIG. 4 , both 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 communicated and arranged, and the tube shell 201 is slidably installed inside There is a push plate assembly 6. The push plate assembly 6 includes a push plate 601. The push plate 601 is provided with a dial block 602 symmetrically on both sides. The trench-shaped inner tube 202 is fixedly connected.

Working principle: a ditch-shaped pipe 2 is slidably installed in the outer tube 1 of the ultra-thin heat pipe. During production, the ditch-shaped pipe 2 is set as two parts of a tube shell 201 and a ditch-shaped inner tube 202, and the ditch-shaped inner tube 202 is made to slide. Installed in the tube shell 201, it is convenient for the processing of the ditch-shaped inner tube 202, so that the ditch-shaped inner tube 202 adopts a ditch tube structure, including the protrusions 203 and the grooves 204 are arranged at intervals, in order to facilitate processing and installation, the tube shell 201 slides inside The push plate assembly 6 is installed. When in use, the ditch-shaped inner tube 202 is fixedly connected to one side of the push plate 601, and the dial 602 is toggled to realize the installation of the ditch-shaped inner tube 202. The entire ultra-thin heat pipe can improve distilled water in a vacuum environment. The capillary force is increased, the evaporation and condensation are increased, the heat removal power is increased, and the temperature difference is reduced.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides an ultra-thin heat pipe of indent tooth-like ditch form, includes ultra-thin heat pipe outer tube (1), its characterized in that: equidistant array has ditch form pipeline (2) in ultra-thin heat pipe outer tube (1), ditch form pipeline (2) are including tube (201) and ditch form inner tube (202), ditch form inner tube (202) slidable mounting is in tube (201), the annular equidistant array of inner wall of ditch form inner tube (202) has arch (203), is provided with between adjacent two sets of arch (203) recess (204), be provided with fluid layer (3) in ditch form inner tube (202).

2. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: the shape of the ultra-thin heat pipe outer pipe (1) is of a waist-shaped structure, the pipe shells (201) on two sides in the ultra-thin heat pipe outer pipe (1) and two sides of the ultra-thin heat pipe outer pipe (1) are concentrically arranged, and the pipe shells (201) are arranged in a tangent mode.

3. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: and the two ends of the pipe shell (201) are respectively provided with a distillation pipe (4) and a condensation pipe (5), and the pipe shell (201), the distillation pipe (4) and the condensation pipe (5) are communicated.

4. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: there are push pedal subassembly (6) in tube (201), push pedal subassembly (6) are including push pedal (601), push pedal (601) bilateral symmetry is provided with shifting block (602), push pedal (601) and tube (201) clearance fit, and push pedal (601) one side and ditch form inner tube (202) fixed connection.

5. The ultra-thin heat pipe of claim 4, wherein: the two sides of the pipe shell (201) are provided with sliding grooves (205), and the shifting block (602) is in clearance fit with the sliding grooves (205).

6. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: and a liquid injection hole (7) is formed in one side of the pipe wall of the pipe shell (201).

7. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: both sides of the ultrathin heat pipe outer pipe (1) are fixedly provided with sealing plates (8).

8. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: the cross section of the groove (204) is rectangular, and the depth of the groove (204) is larger than 0.01mm and smaller than 0.05 mm.

9. The ultra-thin heat pipe in the shape of an indent tooth type trench as claimed in claim 1, wherein: the fluid layer (3) is sealed in the ditch-shaped inner pipe (202) through two groups of closing plates (8).

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