Composite capillary structure of heat pipe

Abstract

The utility model discloses a composite capillary structure of a heat pipe, which comprises a heat pipe evaporator, an inner framework is arranged on the inner wall of the heat pipe evaporator, a capillary copper powder layer is arranged on the outer side of the inner framework, a groove is arranged on the outer side of the capillary copper powder layer, a liquid absorption core is arranged between the capillary copper powder layer and the inner wall of the heat pipe evaporator, and a water guide core is arranged on the inner side of the liquid absorption core. The capillary copper powder layer is arranged on the outer side of the capillary copper powder layer, the grooves are arc-shaped grooves, a plurality of the grooves are arranged at equal intervals, the inner frameworks are T-shaped alloy frameworks, and a plurality of the inner frameworks are arranged on the inner wall of the heat pipe evaporator in an equal-angle mode, the inner frameworks are arranged on the inner wall of the heat pipe evaporator, the capillary copper powder layer is arranged on the outer side of the inner frameworks, and the inner frameworks enable the inner structure of the capillary structure to be high in strength. And the capillary copper powder layer is distributed outside the inner framework, so that the capillary area is increased, and the liquid absorption efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipes, in particular to a composite capillary structure of a heat pipe. Background Art

[0002] A heat pipe is a heat-conducting element with extremely high thermal conductivity. The wall of the heat pipe has a liquid-absorbing core, which is made of capillary porous material. One end of the heat pipe is the evaporation end, and the other end is the condensation end. When one end of the heat pipe is heated, the liquid in the capillary tube quickly vaporizes, and the vapor flows to the other end under the power of heat diffusion, and condenses at the cold end to release heat. The liquid then flows back to the evaporation end along the porous material by capillary action, and the cycle continues until the temperatures at both ends of the heat pipe are equal (at this time, the thermal diffusion of the steam stops). The inner wall of the current ultra-thin heat pipe is covered with a layer of capillary copper powder to condense and reflux the steam heat energy. This heat energy replacement method is single and the processing efficiency is low.

[0003] In the prior art, there is an ultra-thin heat pipe with a capillary structure and application number 201820971331.3, which includes a heat pipe, on the inner wall of which is fixedly mounted a uniformly distributed strip holder, and inside which is a water-conducting core. The ultra-thin heat pipe with a capillary structure has uniformly distributed tentacles on the outside of the liquid-absorbing core, which extend outward in all directions, and can guide the liquefied liquid into the inside of the liquid-absorbing core for recycling and evaporation. At the same time, the liquid in the water-conducting core at the left end of the heat pipe can be directly evaporated and utilized. This method realizes rapid evaporation of the liquid by increasing the capillary structure. However, the internal structural strength of the capillary structure is relatively low, and the resistance to deformation is relatively weak, which affects the service life of the high capillary structure. Utility Model Content

[0004] The utility model aims to provide a composite capillary structure of a heat pipe to solve the problem that the capillary structure in the prior art has low internal structural strength and weak resistance to deformation, thereby affecting the service life of the capillary structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite capillary structure of a heat pipe, comprising a heat pipe evaporator, the inner wall of the heat pipe evaporator is provided with an inner skeleton, the outer side of the inner skeleton is provided with a capillary copper powder layer, the outer side of the capillary copper powder layer is provided with a groove, a liquid absorption core is also provided between the capillary copper powder layer and the inner wall of the heat pipe evaporator, and a water conducting core is also provided on the inner side of the liquid absorption core.

[0006] Furthermore, the groove is configured as an arc-shaped groove, and a plurality of grooves are provided at equal intervals.

[0007] Furthermore, the inner frame is a T-shaped alloy frame, and a plurality of inner frames are provided at equal angles on the inner wall of the heat pipe evaporator.

[0008] Furthermore, one end of the inner frame has an outer arc-shaped end surface, and one end of the inner frame is fixedly welded to the inner wall of the heat pipe evaporator.

[0009] Furthermore, the liquid absorbent core comprises a transverse woven layer and a longitudinal woven layer, and the transverse woven layer and the longitudinal woven layer are filled with a sponge filling core.

[0010] Furthermore, the water-conducting core is a semi-cylindrical fiber braided body, and one side of the water-conducting core and the liquid-absorbing core is fixedly bonded to the inner wall of the heat pipe evaporator through an adhesive layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides an inner frame on the inner wall of the heat pipe evaporator, and a capillary copper powder layer is provided on the outer side of the inner frame. The inner frame is a T-shaped alloy frame, and a plurality of inner frames are provided at equal angles on the inner wall of the heat pipe evaporator. The inner frame makes the internal structure strength of the capillary structure higher and the resistance to deformation stronger, which is beneficial to improving the service life of the capillary structure. Moreover, the capillary copper powder layer is distributed on the outside of the inner frame to increase the capillary area, which is beneficial to improving the efficiency of liquid absorption.

[0013] 2. The utility model also provides a liquid absorption core between the capillary copper powder layer and the inner wall of the heat pipe evaporator. The liquid absorption core includes a transverse braided layer and a longitudinal braided layer. The transverse braided layer and the longitudinal braided layer are filled with a sponge filling core, so that the liquid absorption core has an excellent liquid absorption effect, combined with the ability of the capillary copper powder layer to absorb and store liquid, and the liquid absorption core has high structural stability and strong tear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is the main screenshot of the overall structure of the utility model;

[0016] Figure 2 It is an enlarged schematic diagram of the structure at A of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the liquid-absorbing core of the utility model;

[0018] Figure 4 It is a schematic diagram of the inner skeleton structure of the utility model.

[0019] In the figure: 1. heat pipe evaporator; 2. inner frame; 3. liquid absorption core; 301. transverse braided layer; 302. longitudinal braided layer; 303. sponge filling core; 4. water conducting core; 5. capillary copper powder layer; 6. groove; 7. bonding layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In an embodiment of the utility model, a composite capillary structure of a heat pipe includes a heat pipe evaporator 1, an inner frame 2 is provided on the inner wall of the heat pipe evaporator 1, a capillary copper powder layer 5 is provided on the outer side of the inner frame 2, the inner frame 2 is a T-shaped alloy frame, and the inner frame 2 is provided with a plurality of arc-shaped end faces on the inner wall of the heat pipe evaporator 1 at equal angles, and one end of the inner frame 2 is fixedly welded to the inner wall of the heat pipe evaporator 1. The inner frame 2 is provided so that the internal structure strength of the capillary structure is higher and the resistance to deformation is stronger, which is beneficial to improving the service life of the capillary structure, and the capillary copper powder layer 5 is distributed on the outside of the inner frame 2 to increase the capillary area, which is beneficial to improving the efficiency of liquid absorption.

[0022] like Figure 1 and Figure 2 As shown, in order to further increase the contact area between the capillary structure and the wall surface, a groove 6 is provided on the outer side of the capillary copper powder layer 5. The groove 6 is configured as an arc groove, and a plurality of grooves 6 are provided at equal intervals, so as to further increase the contact area between the capillary structure and the wall surface and reduce the thermal resistance of heat conduction.

[0023] like Figure 1 and Figure 2 As shown, in order to better gather the water in the heat pipe evaporator 1, a water guide core 4 is further provided on the inner side of the liquid wick 3. The water guide core 4 is a semi-cylindrical fiber woven body, and the water guide core 4 and one side of the liquid wick 3 are fixedly bonded to the inner wall of the heat pipe evaporator 1 through an adhesive layer 7, so as to facilitate water conduction so as to gather the water in the heat pipe evaporator 1.

[0024] like Figure 2 and Figure 3 As shown, in order for the absorbent core 3 to have an excellent absorbent effect, a absorbent core 3 is further provided between the capillary copper powder layer 5 and the inner wall of the heat pipe evaporator 1, and the absorbent core 3 includes a transverse woven layer 301 and a longitudinal woven layer 302, and the transverse woven layer 301 and the longitudinal woven layer 302 are filled with a sponge filling core 303, so that the absorbent core 3 has an excellent absorbent effect, combined with the ability of the capillary copper powder layer 5 to absorb and store liquid, and the absorbent core 3 has a high structural stability and strong tear resistance.

[0025] The working principle and use process of the utility model are as follows: when in use, an inner frame 2 is provided on the inner wall of the heat pipe evaporator 1, and a capillary copper powder layer 5 is provided on the outer side of the inner frame 2. The inner frame 2 is a T-shaped alloy frame, and the inner frame 2 is provided with a plurality of equal angles on the inner wall of the heat pipe evaporator 1. The inner frame 2 is provided so that the internal structure strength of the capillary structure is higher and the resistance to deformation is stronger, which is beneficial to improving the service life of the capillary structure. Moreover, the capillary copper powder layer 5 is distributed on the outside of the inner frame 2 to increase the capillary area, which is beneficial to improving the efficiency of liquid absorption.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A composite capillary structure of a heat pipe, comprising a heat pipe evaporator (1), characterized in that: The inner wall of the heat pipe evaporator (1) is provided with an inner frame (2), the outer side of the inner frame (2) is provided with a capillary copper powder layer (5), the outer side of the capillary copper powder layer (5) is provided with a groove (6), a liquid absorption core (3) is also provided between the capillary copper powder layer (5) and the inner wall of the heat pipe evaporator (1), and a water conducting core (4) is also provided on the inner side of the liquid absorption core (3).

2. The composite capillary structure of a heat pipe according to claim 1, characterized in that: The groove (6) is configured as an arc-shaped groove, and a plurality of grooves (6) are provided at equal intervals.

3. The composite capillary structure of a heat pipe according to claim 1, characterized in that: The inner frame (2) is a T-shaped alloy frame, and a plurality of the inner frames (2) are provided at equal angles on the inner wall of the heat pipe evaporator (1).

4. The composite capillary structure of a heat pipe according to claim 3, characterized in that: One end of the inner frame (2) has an outer arc-shaped end surface, and one end of the inner frame (2) is fixedly welded to the inner wall of the heat pipe evaporator (1).

5. The composite capillary structure of a heat pipe according to claim 1, characterized in that: The liquid absorbent core (3) comprises a transverse woven layer (301) and a longitudinal woven layer (302), and the transverse woven layer (301) and the longitudinal woven layer (302) are filled with a sponge filling core (303).

6. The composite capillary structure of a heat pipe according to claim 1, characterized in that: The water-conducting core (4) is a semi-cylindrical fiber braided body, and one side of the water-conducting core (4) and the liquid-absorbing core (3) are fixedly bonded to the inner wall of the heat pipe evaporator (1) via an adhesive layer (7).

Images