CN210075882U - Composite heat conduction pipe - Google Patents

Abstract

The utility model relates to a pipeline, in particular to a composite heat conducting pipe, which comprises a pipe body, wherein the pipe body is a flat structure with a hollow inner part, the thickness of the pipe wall is 0.25mm, and the height of a groove is 0.1 mm; the integral structure of the pipe body is optimized; one end of the pipe body is an evaporation end, and the other end of the pipe body is a heat dissipation end; the heat dissipation end is filled with a proper amount of heat-conducting medium; the inner wall of the pipe body is provided with grooves which are distributed along the inner wall of the pipe body in a circumferential manner; the body inner wall is provided with and is used for adding radiating capillary structure of piece, and capillary structure fills the slot increases capillary structure, improves the radiating efficiency, and the surface that is close to evaporating end one side on the capillary structure is provided with the spiral arch that is used for the water conservancy diversion effect, utilizes spiral arch to prevent that the air current wadding is in disorder, the utility model discloses simple structure, advantage such as radiating efficiency is fast.

Description

Composite heat conduction pipe

Technical Field

The utility model relates to a tool to lock technical field, concretely relates to compound heat pipe.

Background

In recent years, electronic devices are designed in a direction of light, thin, short and small size, and therefore, heat dissipation devices and structures in electronic devices are also required to be designed in a direction of light, thin, short and small size.

However, the heat pipe designed by each family has a plurality of ways, wherein the common form is that after the heat pipe is heated by working fluid to become steam, the gaseous working fluid guides the heat to the low-temperature heat-extraction area due to the natural phenomenon of heat, and then the gaseous working fluid is condensed to become liquid working fluid, and then the condensed liquid working fluid is conducted to the heated area by arranging a capillary layer, so that the continuous circulation is achieved.

The above-mentioned shape and structure of the capillary layer are different from one another, but the prior art makes the cross-sectional area of the capillary layer very large in order to make the capillary action stronger and resist the influence of gravity, but this design makes the flowing space of the gaseous working fluid in the tube body quite small. Conversely, in order to increase the flow space of the working fluid vapor in the gaseous state, the strength of the capillary action is sacrificed, so that the working fluid in the liquid state cannot be smoothly transferred to the heated region.

Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide compound heat pipe to the cross sectional area who has capillary layer in the heat pipe among the solution prior art is done very big, nevertheless can make gaseous working fluid's in the body flow space fairly little, and the working fluid flow space can sacrifice the intensity of capillary effect greatly, makes liquid working fluid can't transmit smoothly to the problem that receives the hot zone territory.

The utility model is realized in such a way that the composite heat conducting pipe comprises a pipe body which is a flat structure with a hollow inner part, one end of the pipe body is an evaporation end, and the other end is a heat dissipation end; the inner wall of the pipe body is provided with grooves which are circumferentially distributed along the inner wall of the pipe body; the inner wall of the tube body is covered with a capillary structure, and the groove is filled with the capillary structure; and spiral protrusions are arranged on the surface of one side of the capillary structure, which is close to the evaporation end.

Preferably, the thickness of the pipe wall of the pipe body is 0.25 mm.

Preferably, the height of the groove is 0.1 mm.

Preferably, the capillary structure is a copper powder layer.

Preferably, the groove is U-shaped in cross-section.

Preferably, the helical projection is of inclined design.

The utility model discloses a can focus lens's technological effect does:

the utility model discloses set up capillary structure and pack a plurality of U-shaped slot that the heat pipe inner wall set up along the circumference with the help of the heat pipe inner wall, the improvement plays and increases capillary structure and be used for reaching improvement radiating efficiency, is close to be provided with the spiral arch on the capillary structure layer of evaporating end, and the spiral arch is the slope design, does not block the air current and flows to the evaporating end from the heat dissipation end, can also guide the air current to circle round at the evaporating end, prevents that the air current is in disorder, improves evaporation area to reach improvement radiating efficiency, the air current is by the conduction of heat dissipation end to the speed of evaporating end fast, indirectly makes the holistic radiating efficiency of heat pipe promote.

Drawings

FIG. 1: the embodiment of the utility model provides a global structure schematic diagram of compound heat pipe that relates.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like.

Please refer to fig. 1, which is an embodiment of the present invention, and the ultra-thin heat pipe in this embodiment is used for absorbing heat and dissipating heat, the ultra-thin heat pipe in this embodiment includes a pipe body 1, and the following further explains each component of the ultra-thin heat pipe:

the tube body 1 is of a flat structure with a hollow interior, and preferably, the cross section of the tube body 1 is rectangular; certainly, the cross section of the tube 1 is not limited to be rectangular, but can also be oval, trapezoidal and the like, and one end of the tube 1 is an evaporation end 30, and the other end is a heat dissipation end 20; the inner wall of the pipe body 1 is provided with grooves which are distributed along the inner wall of the pipe body 1 in a circumferential manner; the inner wall of the tube body 1 is covered with a capillary structure 11, and the capillary structure 11 fills the groove; the surface of the capillary structure 11 near the evaporation end is provided with spiral protrusions 12. Preferably, the helical projection 12 is of inclined design.

Accordingly, the heat dissipating end 20 of the tube 1 is used for dissipating heat, the steam formed after the heat-dissipating medium absorbs heat and evaporates flows from the heat dissipating end 20 to the evaporating end 30, and further heat dissipation is performed, because the inner wall of the tube 1 is covered with a layer of capillary structure 11, the capillary structure 11 can accelerate the flow of the steam, so that the steam can transfer heat faster, part of the steam flowing to the evaporating end 30 is solidified into water in the flow, and the rest of the steam which is not solidified into water in time flows along the spiral protrusion 12 at the evaporating end 30. The utility model discloses refrigeration effect is better, and the heat dissipation is faster, can carry out quick temperature and give off, and spiral protrusion 12 plays the effect of water conservancy diversion to vapor in this embodiment, and it is in disorder effectively to prevent the air current moreover, improves the evaporation area to reach improvement radiating efficiency, the air current is held 20 conduction by the heat dissipation and is held 30 speed of evaporation end and become fast, indirectly makes the holistic radiating efficiency of heat pipe promote

Referring to fig. 1, as another embodiment of the present invention, the thickness of the tube wall of the tube body 1 is 0.25mm, and the height of the groove is preferably 0.1 mm. Compared with the traditional heat conduction pipe with a smooth pipe wall, the heat conduction pipe in the embodiment has the advantages that the structure is optimized, the heat dissipation performance is improved, and the thickness of the pipe wall can be thickened properly according to needs.

Referring to fig. 1, as another embodiment of the present invention, the capillary structure 11 is a copper powder layer, and the copper powder layer uniformly covers the inner wall of the tube 1. Accordingly, the addition of the copper powder layer in the embodiment is set according to specific requirements; the use of the copper powder layer enables the heat dissipation effect of the tube body 1 to be better, and the overall heat dissipation efficiency of the tube body 1 is improved in a targeted manner.

Referring to fig. 1, as another embodiment of the present invention, the cross section of the groove is U-shaped. In this embodiment, the grooves are spaced apart from each other by a distance of 0.1mm and have a depth of 0.1 mm. Of course, the shape of the groove is not limited to a U-shape and may be any desired cross-sectional shape, such as rectangular, trapezoidal, V-shaped, or arcuate.

Referring to fig. 1, as another embodiment of the present invention, a restriction 40 is provided at a side of the tube 1 near the evaporation end 30, and heat is discharged from the restriction 40 to the outside of the tube 1.

In a word, this heat pipe structural design is reasonable, and convenient to use is fit for using widely.

The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. Compound heat pipe, its characterized in that: the heat-radiating pipe comprises a pipe body, wherein the pipe body is of a flat structure with a hollow interior, one end of the pipe body is an evaporation end, and the other end of the pipe body is a heat-radiating end; the inner wall of the pipe body is provided with grooves which are circumferentially distributed along the inner wall of the pipe body; the inner wall of the tube body is covered with a capillary structure, and the groove is filled with the capillary structure; and spiral protrusions are arranged on the surface of one side of the capillary structure, which is close to the evaporation end.

2. The composite heat pipe of claim 1, wherein: the thickness of the pipe wall of the pipe body is 0.25 mm.

3. The composite heat pipe of claim 1, wherein: the height of the groove is 0.1 mm.

4. The composite heat pipe of claim 1, wherein: the capillary structure is a copper powder layer.

5. The composite heat pipe of claim 1, wherein: the cross section of the groove is U-shaped.

6. The composite heat pipe of claim 1, wherein: the spiral protrusion is designed in an inclined mode.

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