Flat plate type evaporation end loop heat pipe

Abstract

The utility model discloses a flat plate type evaporation end loop heat pipe, which belongs to the technical field of loop heat pipes, and is characterized by comprising an evaporator, a liquid storage device, a condenser, a liquid phase pipeline and a gas phase pipeline, the liquid storage device is bolted on the left side of the evaporator, and the evaporator is communicated with the liquid storage device; one end of the liquid phase pipeline penetrates through the liquid storage device and extends into the evaporator, and the other end of the liquid phase pipeline is communicated with the condenser, so that the problem that external heat cannot directly enter the evaporator for heat exchange due to the fact that an existing flat plate type evaporation end loop heat pipe is in a loop closed type; the heating load of the evaporator is mainly in contact with the heat input through the evaporator, and heat is transferred into the shell through the shell for heat exchange, so that the heat conduction effect of the contact surface of the evaporator and the heat input is the best, the conduction fire protection of other parts is poor, heat conduction is nonuniform, and the heat exchange efficiency is improved. Therefore, the working efficiency of the evaporator is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of loop heat pipes, in particular to a flat-plate evaporation end loop heat pipe. Background Art

[0002] A loop heat pipe refers to a closed-loop ring heat pipe, which is generally composed of an evaporator, a condenser, a liquid reservoir, and steam and liquid pipelines. Its working principle is: a heat load is applied to the evaporator, the working fluid evaporates on the outer surface of the evaporator capillary core, and the generated steam flows out from the steam channel into the steam pipeline, and then enters the condenser to condense into liquid and supercool. The reflux liquid enters the liquid trunk through the liquid pipeline to replenish the evaporator capillary core, and the cycle continues.

[0003] However, the existing flat-plate evaporation-end loop heat pipe is a closed-loop type, so external heat cannot directly enter the evaporator for heat exchange. The heating load of the evaporator is mainly achieved through the contact between the evaporator and the heat input, and the heat is transferred to the inside through the shell for heat exchange. Therefore, the contact surface between the evaporator and the heat input has the best heat conduction effect, while the heat conduction in other parts is poor, resulting in uneven heat conduction, which affects the working efficiency of the evaporator. Utility Model Content

[0004] The utility model provides a flat plate evaporation end loop heat pipe, aiming to solve the problem that the existing flat plate evaporation end loop heat pipe is a closed loop type, and the external heat cannot directly enter the evaporator for heat exchange, and the heating load of the evaporator is mainly achieved through the contact between the evaporator and the heat input, and the heat is transferred to the inside through the shell for heat exchange, so that the contact surface between the evaporator and the heat input has the best heat conduction effect, while the heat conduction in other parts is poor, so that the heat conduction is uneven, which affects the working efficiency of the evaporator and thus affects the use effect.

[0005] The utility model is implemented as follows: a flat-plate evaporation end loop heat pipe comprises an evaporator, a liquid reservoir, a condenser, a liquid phase pipeline and a gas phase pipeline, wherein the liquid reservoir is bolted to the left side of the evaporator, and the evaporator is communicated with the liquid reservoir, one end of the liquid phase pipeline penetrates the liquid reservoir and extends to the inside of the evaporator, and the other end of the liquid phase pipeline is communicated with the condenser, and the two ends of the gas phase pipeline are respectively communicated with the evaporator and the condenser, and a heat conduction component is arranged on the surface of the evaporator;

[0006] The heat conduction assembly comprises a connection shell, the connection shell is arranged on the surface of the evaporator, and the top of the connection shell is bolted with an upper end cover, the connection shell and the upper end cover are both provided with a conduction sheet inside, and a connection base is provided on the side of the conduction sheet close to the evaporator, a heat conduction piece is bolted on the side of the connection base away from the conduction piece, and the side of the heat conduction piece close to the evaporator is in contact with the evaporator;

[0007] The evaporator includes a fixed shell, a capillary core column is arranged inside the fixed shell, and a steam groove is formed between the surface of the capillary core column and the inner wall of the fixed shell, the steam groove is connected to the gas phase pipeline, the interior of the capillary core column is hollow, and the right side of the liquid phase pipeline extends to the interior of the capillary core column.

[0008] In order to achieve the effect of enhancing heat conduction, as a preferred flat-plate evaporation end loop heat pipe of the utility model, the heat conducting component includes a heat conducting plate, the side of the heat conducting plate close to the connecting base is bolted to the connecting base, the side of the heat conducting plate close to the evaporator is bolted with a heat conducting sheet, and the heat conducting sheet is in contact with the evaporator, the surface of the heat conducting plate is provided with longitudinal ribs, and a plurality of transverse ribs are provided on the side of the longitudinal ribs away from the heat conducting plate.

[0009] In order to achieve the effect of uniform heat conduction, as a preferred flat-plate evaporation end loop heat pipe of the utility model, the conduction sheet is arranged in a rectangular shape inside the connecting shell and the upper end cover, and two adjacent conduction sheets are in contact with each other.

[0010] In order to achieve the effect of improving thermal conductivity, as a preferred flat-plate evaporation end loop heat pipe of the utility model, the heat conduction plate, longitudinal ribs and transverse ribs are all made of aluminum material, and the heat conduction sheet is made of thermally conductive silicone.

[0011] In order to achieve the effect of connecting the upper end cover with the connecting shell, as a preferred flat-plate evaporation end loop heat pipe of the utility model, a plurality of connecting screws are passed through the interior of the upper end cover, and the connecting screws are arranged in a rectangular shape inside the upper end cover, and the bottom of the connecting screws extends to the interior of the connecting shell and is connected to the thread.

[0012] In order to facilitate the gas phase pipeline to pass through the connecting shell and connect with the evaporator, a flat-plate evaporation end loop heat pipe is preferably used in the utility model. One end of the gas phase pipeline passes through the interior of the connecting shell and connects with the evaporator, and a hole for the gas phase pipeline is opened on the right side of the connecting shell.

[0013] In order to achieve the effect of ensuring the thermal conductivity of the conduction sheet, as a preferred embodiment of the flat-plate evaporation end loop heat pipe of the utility model, the conduction sheet is made of graphite material.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The flat-plate evaporation end loop heat pipe can make the upper end cover or the connecting shell contact with the heat source by setting a heat conduction component, and the heat input heat can be evenly dispersed to several heat conduction parts through the action of the internal conduction sheet. Since the heat conduction parts are distributed on the surface of the evaporator in a rectangular shape, the heat can be evenly contacted with the evaporator, so that the evaporator can perform heat exchange evenly, thereby improving the heat exchange efficiency and the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the flat-plate evaporation end loop heat pipe of the utility model;

[0017] Figure 2 It is a schematic diagram of the process of the flat-plate evaporation end loop heat pipe in the utility model;

[0018] Figure 3 It is a schematic diagram of the connection between the heat conducting component and the evaporator in the utility model;

[0019] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of point A in the middle;

[0020] Figure 5 It is an exploded schematic diagram of the heat conducting component in the utility model;

[0021] Figure 6 It is an exploded schematic diagram of the heat conducting element in the utility model.

[0022] In the figure, 1, evaporator; 101, fixed shell; 102, capillary core column; 103, steam groove; 2, liquid storage tank; 3, condenser; 4, liquid phase pipeline; 5, gas phase pipeline; 6, heat conduction component; 601, connecting shell; 602, upper end cover; 603, conduction plate; 604, connecting base; 605, heat conduction part; 6051, heat conduction plate; 6052, heat conduction plate; 6053, longitudinal ribs; 6054, transverse ribs; 7, connecting screws. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships 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 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. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-6 The utility model provides a technical solution: a flat-plate evaporation end loop heat pipe, comprising an evaporator 1, a liquid reservoir 2, a condenser 3, a liquid phase pipeline 4 and a gas phase pipeline 5, the liquid reservoir 2 is bolted to the left side of the evaporator 1, and the evaporator 1 is connected to the liquid reservoir 2, one end of the liquid phase pipeline 4 passes through the liquid reservoir 2 and extends to the inside of the evaporator 1, and the other end of the liquid phase pipeline 4 is connected to the condenser 3, the two ends of the gas phase pipeline 5 are respectively connected to the evaporator 1 and the condenser 3, and a heat conduction component 6 is arranged on the surface of the evaporator 1;

[0026] The heat conducting assembly 6 comprises a connecting shell 601, which is arranged on the surface of the evaporator 1, and an upper end cover 602 is bolted to the top of the connecting shell 601, and a conducting sheet 603 is arranged inside the connecting shell 601 and the upper end cover 602, and a connecting base 604 is arranged on a side of the conducting sheet 603 close to the evaporator 1, and a heat conducting member 605 is bolted to a side of the connecting base 604 away from the conducting sheet 603, and a side of the heat conducting member 605 close to the evaporator 1 is in contact with the evaporator 1;

[0027] The evaporator 1 includes a fixed shell 101, a capillary core column 102 is arranged inside the fixed shell 101, and a steam groove 103 is formed between the surface of the capillary core column 102 and the inner wall of the fixed shell 101, the steam groove 103 is connected to the gas phase pipeline 5, the interior of the capillary core column 102 is hollow, and the right side of the liquid phase pipeline 4 extends to the interior of the capillary core column 102.

[0028] In this embodiment: by providing a heat-conducting component 6, the upper end cover 602 or the connecting shell 601 can be in contact with the heat source, and the heat input can be evenly dispersed to a plurality of heat-conducting parts 605 through the action of the internal conduction sheet 603. Since the heat-conducting parts 605 are distributed in a rectangular shape on the surface of the evaporator 1, the heat can be evenly in contact with the evaporator 1, so that the evaporator 1 can evenly perform heat exchange, thereby improving the heat exchange efficiency and the use effect.

[0029] As a technical optimization solution of the utility model, the heat conducting member 605 includes a heat conducting plate 6051, the side of the heat conducting plate 6051 close to the connecting base 604 is bolted to the connecting base 604, the side of the heat conducting plate 6051 close to the evaporator 1 is bolted with a heat conducting sheet 6052, and the heat conducting sheet 6052 is in contact with the evaporator 1, the surface of the heat conducting plate 6051 is provided with longitudinal ribs 6053, and a plurality of transverse ribs 6054 are provided on the side of the longitudinal ribs 6053 away from the heat conducting plate 6051.

[0030] In this embodiment: by providing a heat conducting member 605, the heat transferred by the conduction sheet 603 can be transferred to the heat conducting sheet 6052 through the heat conducting plate 6051, so that the heat conducting sheet 6052 directly transfers the heat to the evaporator 1. At the same time, by providing the longitudinal ribs 6053 and the transverse ribs 6054, the heat conduction area can be expanded, thereby further improving the heat conduction effect, so that the evaporator 1 can improve the heat exchange efficiency and effect.

[0031] As a technical optimization solution of the present invention, the conductive sheet 603 is arranged in a rectangular shape inside the connecting shell 601 and the upper end cover 602, and two adjacent conductive sheets 603 are in contact with each other.

[0032] In this embodiment: by arranging the conduction sheet 603 in a rectangular shape inside the connecting shell 601 and the upper end cover 602, and contacting two adjacent conduction sheets 603, heat between the conduction sheets 603 can be transferred, so that the heat input can be in uniform contact with the evaporator 1, achieving the effect of uniform thermal conductivity.

[0033] As a technical optimization solution of the present invention, the heat conducting plate 6051, the longitudinal ribs 6053 and the transverse ribs 6054 are all made of aluminum material, and the heat conducting sheet 6052 is made of heat conducting silicone.

[0034] In this embodiment, the heat conducting plate 6051 , the longitudinal ribs 6053 and the transverse ribs 6054 are all made of aluminum material, and the heat conducting sheet 6052 is made of thermally conductive silicone, so that the effect of improving thermal conductivity can be achieved.

[0035] As a technical optimization solution of the utility model, a plurality of connecting screws 7 are passed through the interior of the upper end cover 602, and the connecting screws 7 are arranged in a rectangular shape inside the upper end cover 602, and the bottom of the connecting screws 7 extends to the interior of the connecting shell 601 and is connected to the thread.

[0036] In this embodiment, by providing the connecting screws 7, the connection effect between the upper end cover 602 and the connecting shell 601 can be achieved.

[0037] As a technical optimization solution of the utility model, one end of the gas phase pipeline 5 passes through the interior of the connecting shell 601 and is connected to the evaporator 1, and a hole for the gas phase pipeline 5 is opened on the right side of the connecting shell 601.

[0038] In this embodiment, by setting a preset hole position on the right side of the connecting shell 601 , the gas phase pipeline 5 can pass through the connecting shell 601 to be connected to the evaporator 1 .

[0039] As a technical optimization solution of the present invention, the conductive sheet 603 is made of graphite material.

[0040] In this embodiment, by setting the conductive sheet 603 to be made of graphite material, the thermal conductivity of the conductive sheet 603 can be improved.

[0041] Working principle: First, the connection shell 601 is mounted on the surface of the evaporator 1, and one end of the gas phase pipeline 5 is passed through the inside thereof to connect with the evaporator 1, and then the upper end cover 602 is connected to the connection shell 601 using the connection screw 7, and the upper end cover 602 or the connection shell 601 is brought into contact with the heat source, and the heat input by the conduction sheet 603 inside it is evenly dispersed to a plurality of heat conducting members 605, and the heat transferred by the conduction sheet 603 can be transferred to the heat conducting sheet 6052 through the heat conducting plate 6051, so that the heat conducting sheet 60 52 directly transfers heat to the evaporator 1. At the same time, the heat conduction area can be expanded by the arrangement of the longitudinal ribs 6053 and the transverse ribs 6054. The working medium in the liquid phase pipeline 4 enters the interior of the capillary core column 102, so that the working medium evaporates on the outer surface of the capillary core column 102 of the evaporator 1. The generated steam flows out from the steam groove 103 and enters the steam pipeline, and then enters the condenser 3 to be condensed into liquid and supercooled. The reflux liquid enters the liquid reservoir 2 through the liquid phase pipeline 4 to replenish the capillary core column 102 in the evaporator 1, and the cycle is repeated.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat-plate evaporation end loop heat pipe, comprising an evaporator (1), a liquid reservoir (2), a condenser (3), a liquid phase pipeline (4) and a gas phase pipeline (5), characterized in that: The liquid reservoir (2) is bolted to the left side of the evaporator (1), and the evaporator (1) is in communication with the liquid reservoir (2); one end of the liquid phase pipeline (4) passes through the liquid reservoir (2) and extends to the interior of the evaporator (1), and the other end of the liquid phase pipeline (4) is in communication with the condenser (3); the two ends of the gas phase pipeline (5) are respectively in communication with the evaporator (1) and the condenser (3); and a heat conduction component (6) is provided on the surface of the evaporator (1); The heat-conducting component (6) comprises a connecting shell (601), the connecting shell (601) is arranged on the surface of the evaporator (1), and the top of the connecting shell (601) is bolted with an upper end cover (602), the interiors of the connecting shell (601) and the upper end cover (602) are both provided with a conducting sheet (603), and a connecting base (604) is provided on a side of the conducting sheet (603) close to the evaporator (1), a heat-conducting member (605) is bolted on a side of the connecting base (604) away from the conducting sheet (603), and a side of the heat-conducting member (605) close to the evaporator (1) is in contact with the evaporator (1); The evaporator (1) comprises a fixed shell (101), a capillary core column (102) is arranged inside the fixed shell (101), and a steam groove (103) is formed between the surface of the capillary core column (102) and the inner wall of the fixed shell (101), the steam groove (103) is connected to the gas phase pipeline (5), the interior of the capillary core column (102) is hollow, and the right side of the liquid phase pipeline (4) extends to the interior of the capillary core column (102).

2. The flat plate evaporation end loop heat pipe according to claim 1, characterized in that: The heat conducting member (605) comprises a heat conducting plate (6051), wherein the side of the heat conducting plate (6051) close to the connecting base (604) is bolted to the connecting base (604), the side of the heat conducting plate (6051) close to the evaporator (1) is bolted with a heat conducting sheet (6052), and the heat conducting sheet (6052) is in contact with the evaporator (1), and the surface of the heat conducting plate (6051) is provided with longitudinal ribs (6053), and a plurality of transverse ribs (6054) are provided on the side of the longitudinal ribs (6053) away from the heat conducting plate (6051).

3. The flat plate evaporation end loop heat pipe according to claim 1, characterized in that: The conductive sheet (603) is arranged in a rectangular shape inside the connecting shell (601) and the upper end cover (602), and two adjacent conductive sheets (603) are in contact with each other.

4. The flat-plate evaporation end loop heat pipe according to claim 2, characterized in that: The heat conducting plate (6051), the longitudinal ribs (6053) and the transverse ribs (6054) are all made of aluminum material, and the heat conducting sheet (6052) is made of heat conducting silica gel.

5. The flat plate evaporation end loop heat pipe according to claim 1, characterized in that: A plurality of connecting screws (7) are passed through the interior of the upper end cover (602), and the connecting screws (7) are arranged in a rectangular shape inside the upper end cover (602), and the bottom of the connecting screws (7) extends to the interior of the connecting shell (601) and is connected to the thread.

6. The flat-plate evaporation end loop heat pipe according to claim 1, characterized in that: One end of the gas phase pipeline (5) passes through the interior of the connecting shell (601) and is connected to the evaporator (1), and a hole for the gas phase pipeline (5) is opened on the right side of the connecting shell (601).

7. The flat-plate evaporation end loop heat pipe according to claim 1, characterized in that: The conductive sheet (603) is made of graphite material.

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