Directional flow heat pipe with Tesla valve structure and micro-groove wick structure

Abstract

The utility model relates to the technical field of heat dissipation of electronic equipment, in particular to a directional flow heat pipe with a Tesla valve structure and a micro-groove wick structure, which comprises a first plate body, a second plate body and a third plate body, the first plate body is provided with a Tesla valve groove, and liquid is arranged in the Tesla valve groove and used for enabling the liquid to flow unidirectionally; a micro groove is formed in the Tesla valve groove, so that liquid flowing to the other side in a one-way mode is gasified to return to the initial end when heated and used for efficient heat dissipation operation. The upper baffle is arranged at the top of the first plate body and used for blocking the top of the Tesla valve groove of the first plate body; the lower baffle is arranged at the bottom of the first plate body and used for blocking the bottom of the Tesla valve groove of the first plate body; side baffles are jointly welded to the two sides of the upper baffle and the two sides of the lower baffle. The device is provided with a Tesla valve structure and a micro-groove wick structure, so that the heat dissipation efficiency of the heat pipe wick structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of electronic equipment, in particular to a directional flow heat pipe with a Tesla valve structure and a micro-groove liquid absorption core structure. Background Art

[0002] Tesla valve is a valve with special fluid dynamics characteristics. Its working principle is mainly to change the shape of the internal structure of the valve so that the fluid generates vortex when passing through the valve, thereby achieving fluid control. Tesla valve has a wide range of applications in many fields, such as aerospace, automobile, energy, etc.

[0003] The micro-groove wick structure increases the liquid flow rate and improves the thermal conductivity by processing micron-level grooves on the inner surface of the heat pipe or heat spreader cavity. This technology has important application value in electronic equipment, photovoltaic devices, LEDs and other fields.

[0004] At present, traditional heat dissipation methods are difficult to meet the growing demand for thermal power in the face of cooling technology challenges for high heat flux density electronic devices. Designing a structure that combines a Tesla valve structure with a micro-groove wick structure can achieve ultra-fast directional flow of liquid, improve the product's heat dissipation performance, and ensure stable operation of the equipment in high temperature environments. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art. The utility model proposes a directional flow heat pipe with a Tesla valve structure and a micro-groove liquid absorption core structure, which can realize ultra-fast directional flow of liquid, improve the heat dissipation performance of the product, and ensure the stable operation of the equipment in a high temperature environment.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a directional flow heat pipe with a Tesla valve structure and a micro-groove liquid wick structure, comprising:

[0007] A first plate body, wherein a Tesla valve groove is formed on the first plate body, and liquid is arranged in the Tesla valve groove for allowing the liquid to flow in one direction;

[0008] The Tesla valve slot is provided with micro grooves, so that the liquid flowing to the other side in one direction can be vaporized and returned to the initial end when heated, so as to achieve efficient heat dissipation.

[0009] An upper baffle plate is arranged on the top of the first plate body to seal the top of the Tesla valve slot of the first plate body;

[0010] A lower baffle plate is arranged at the bottom of the first plate body, and is used to block the bottom of the Tesla valve slot of the first plate body;

[0011] Side baffles are welded to both sides of the upper baffle and the lower baffle;

[0012] The sum of the length of the first plate body and the length of the two side baffles is the same as the length of the upper baffle or the side baffle, and the outer sides of the two side baffles are placed on the same longitudinal parallel line as the two outer sides of the upper baffle or the lower baffle;

[0013] The inner sides of the two side baffles are welded to the two sides of the first plate body.

[0014] Furthermore, the top and bottom of the first plate body are provided with penetrating arc grooves on both sides, and the Tesla valve slot is placed between the arc grooves on both sides;

[0015] A first arc-shaped convex plate is fixedly connected to the center of the bottom of the upper baffle plate, the first arc-shaped convex plate fits in the arc-shaped groove, and the length of the arc-shaped groove is the same as the length of the first arc-shaped convex plate;

[0016] A second arc-shaped convex plate is fixedly connected to the top center of the lower baffle plate. The second arc-shaped convex plate fits in the arc-shaped groove at the bottom of the first plate body, and the length of the second arc-shaped convex plate is the same as that of the first arc-shaped convex plate.

[0017] Furthermore, a plurality of Tesla valve slots are formed on the first plate body, and the plurality of Tesla valve slots are evenly distributed on the first plate body.

[0018] Furthermore, the Tesla valve slot is provided with multiple layers of micro grooves, and the multiple layers of micro grooves are evenly distributed on the inner wall of the Tesla valve slot.

[0019] Furthermore, the first plate body is flat or L-shaped.

[0020] Compared with the prior art, the beneficial effects of the utility model include:

[0021] It has a Tesla valve structure and a micro-groove wick structure to improve the heat dissipation efficiency of the heat pipe wick structure;

[0022] The device is provided with a sealing structure to prevent liquid leakage from the Tesla valve slot;

[0023] The first plate body, side baffles, upper baffles and lower baffles are arranged so that the device is easy to manufacture and mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0025] Figure 1The schematic diagram shows the structure of the first plate of the device according to one embodiment of the utility model;

[0026] Figure 2 The schematic diagram of the structure of the micro groove of the device proposed according to one embodiment of the utility model is schematically shown;

[0027] Figure 3 Schematically shows a side view of the structure of a device proposed according to one embodiment of the utility model;

[0028] Figure 4 The schematic diagram of the upper baffle structure of the device proposed according to one embodiment of the utility model is shown schematically;

[0029] Figure 5 The schematic diagram shows the structure of the lower baffle of the device according to one embodiment of the utility model;

[0030] Figure 6 The schematic diagram shows another structural diagram of the device according to one embodiment of the utility model.

[0031] Numbers in the figure: 1, first plate body; 2, upper baffle plate; 3, side baffle plate; 4, lower baffle plate; 5, Tesla valve slot; 6, micro groove; 7, first arc-shaped convex plate; 8, second arc-shaped convex plate; 9, arc-shaped groove. DETAILED DESCRIPTION

[0032] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0033] Example:

[0034] like Figure 1-6 As shown, a plurality of Tesla valve slots 5 are provided at the center of the first plate body 1, and the plurality of Tesla valve slots 5 are evenly distributed at the center of the first plate body 1. Liquid is arranged in the Tesla valve slot 5, and the liquid may be ether or water, for making the liquid flow in one direction;

[0035] A plurality of micro grooves 6 are evenly distributed on the inner wall of each Tesla valve slot 5, so that the liquid flowing unidirectionally to the other side is vaporized and returned to the initial end when heated, which is used for efficient heat dissipation.

[0036] At least two arc-shaped grooves 9 are formed on the front and rear sides of the top and bottom of the first plate body 1 .

[0037] The first arc-shaped convex plate 7 is fixedly connected to both the front and rear sides of the bottom of the upper baffle 2. The length of the first arc-shaped convex plate 7 is the same as the length of the arc-shaped groove 9, and it is completely fitted in the arc-shaped groove 9. The first arc-shaped convex plate 7 is relatively placed in the center of the upper baffle 2, that is, the first arc-shaped convex plate 7 is at the same distance from both ends of the upper baffle 2. The upper baffle 2 is placed on the top of the first plate body 1.

[0038] The second arc-shaped convex plate 8 is fixedly connected to both the front and rear sides of the top of the lower baffle 4. The length of the second arc-shaped convex plate 8 is the same as the length of the arc-shaped groove 9, and it is completely fitted in the arc-shaped groove 9. The second arc-shaped convex plate 8 is relatively arranged at the center of the upper baffle 2, that is, the second arc-shaped convex plate 8 is at the same distance from both ends of the upper baffle 2. The lower baffle 4 is placed at the bottom of the first plate body 1.

[0039] This ensures that the liquid in the Tesla valve slot 5 will not leak from the top of the upper baffle plate 2 or the lower baffle plate 4.

[0040] The length of the upper baffle plate 2 and the lower baffle plate 4 is equal to the sum of the lengths of the first plate body 1 and the two side baffle plates 3 .

[0041] Side baffles 3 are welded to both sides of the upper baffle 2 and the lower baffle 4 , and two outer sides of the two side baffles 3 are parallel to two outer sides of the upper baffle 2 and the lower baffle 4 , respectively.

[0042] The inner sides of the two side baffles 3 are welded to the outer side of the first plate body 1, so that the device can be formed into an integrated device for easy manufacture.

[0043] The first plate body 1 , the side baffle plate 3 , the upper baffle plate 2 , and the lower baffle plate 4 are all made of heat-conducting metal material.

[0044] In practice, a heat pipe is a highly efficient heat transfer device that works by transferring heat through the phase change of the internal liquid. In the wick structure of the heat pipe, the liquid is absorbed and stored in the wick. When one end of the heat pipe is heated, the liquid evaporates in the wick and is then transferred to the other end, where it condenses into liquid and releases the heat.

[0045] However, the existing technology of heat pipe liquid wick structure has some disadvantages. For example, the transmission speed of liquid in the liquid wick is slow, resulting in low heat dissipation efficiency of the heat pipe. In addition, the liquid is easily affected by the liquid wick structure during transmission, resulting in unstable flow of the liquid, further reducing the heat dissipation efficiency of the heat pipe.

[0046] Therefore, we invented a directional flow heat pipe with a Tesla valve structure and a micro-groove wick structure to improve the heat dissipation efficiency of the heat pipe wick structure. The ultra-fast Tesla valve is a one-way flow valve that controls the direction of liquid flow through a mechanical structure, thereby improving the heat dissipation efficiency of the heat pipe. The micro-groove increases the surface area of ​​the liquid by forming tiny grooves on the surface of the wick, thereby accelerating the evaporation and condensation of the liquid and further improving the heat dissipation efficiency of the heat pipe.

[0047] In order to make the device easier to produce, the side baffle 3 is designed to be welded with the upper baffle 2, the lower baffle 4, and the first plate body 1, so as to facilitate mass production of the device.

[0048] In order to prevent the device from leaking liquid, a sealing structure of the second arc-shaped convex plate 8, the first arc-shaped convex plate 7, and the arc-shaped groove 9 is provided to prevent the liquid from leaking.

[0049] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A directional flow heat pipe having a Tesla valve structure and a micro-groove wick structure, characterized in that: include: A first plate body (1), wherein a Tesla valve groove (5) is provided on the first plate body (1), and liquid is arranged in the Tesla valve groove (5) so as to allow the liquid to flow in one direction; The Tesla valve groove (5) is provided with micro grooves (6) so that the liquid flowing to the other side in one direction can be vaporized and returned to the initial end when heated, so as to achieve efficient heat dissipation. An upper baffle (2), the upper baffle (2) being arranged on the top of the first plate body (1) and being used for sealing the top of the Tesla valve slot (5) of the first plate body (1); A lower baffle (4), the lower baffle (4) being arranged at the bottom of the first plate body (1) and being used for blocking the bottom of the Tesla valve slot (5) of the first plate body (1); Side baffles (3) are welded to both sides of the upper baffle (2) and the lower baffle (4); The sum of the length of the first plate body (1) and the length of the two side baffles (3) is the same as the length of the upper baffle (2) or the side baffles (3), and the outer sides of the two side baffles (3) are arranged on the same longitudinal parallel line as the two outer sides of the upper baffle (2) or the lower baffle (4); The inner sides of the two side baffles (3) are welded to the two sides of the first plate body (1).

2. A directional flow heat pipe with a Tesla valve structure and a micro-groove wick structure according to claim 1, characterized in that: The top and bottom of the first plate body (1) are provided with penetrating arc grooves (9) on both sides, and the Tesla valve slot (5) is placed between the arc grooves (9) on both sides; A first arc-shaped convex plate (7) is fixedly connected to the center of the bottom of the upper baffle (2), the first arc-shaped convex plate (7) fits in the arc-shaped groove (9), and the length of the arc-shaped groove (9) is the same as the length of the first arc-shaped convex plate (7); A second arc-shaped convex plate (8) is fixedly connected to the top center of the lower baffle (4), and the second arc-shaped convex plate (8) fits in the arc-shaped groove (9) at the bottom of the first plate body (1), and the length of the second arc-shaped convex plate (8) is the same as that of the first arc-shaped convex plate (7).

3. The directional flow heat pipe with Tesla valve structure and micro-groove wick structure according to claim 1, characterized in that: The first plate body (1) is provided with a plurality of Tesla valve slots (5), and the plurality of Tesla valve slots (5) are evenly distributed on the first plate body (1).

4. The directional flow heat pipe with Tesla valve structure and micro-groove wick structure according to claim 1, characterized in that: The Tesla valve slot (5) is provided with multiple layers of micro grooves (6), and the multiple layers of micro grooves (6) are evenly distributed on the inner wall of the Tesla valve slot (5).

5. The directional flow heat pipe with Tesla valve structure and micro-groove wick structure according to claim 1, characterized in that: The first plate body (1) is in a flat plate shape or an L-shape.

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