Two-phase heat sink device

Abstract

The application relates to a two-phase heat dissipation device, which comprises an evaporator, a condenser and a connecting assembly. The evaporator comprises a first header, the condenser comprises a second header, and the connecting assembly comprises a first connecting pipe and a second connecting pipe. The first header, the first connecting pipe, the second header and the second connecting pipe are sequentially connected to form a spacing space. A first partition plate is arranged in the lumen of the first header, a second partition plate is arranged in the lumen of the second header, and the first partition plate and the second partition plate are diagonally arranged on the spacing space. The application can recycle heat exchange medium, and the gas and the liquid do not interfere with each other, so that the utilization rate of the heat exchange medium is improved, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] This invention relates to a two-phase heat dissipation device, belonging to the field of thermosiphon heat exchange technology. Background Technology

[0002] A two-phase heat exchanger is a type of heat exchanger that utilizes the absorption or release of latent heat during the phase change (boiling / evaporation, condensation) of a gas and a liquid working medium to achieve efficient heat transfer. Its core advantages are high heat exchange efficiency, small temperature difference, and stable temperature. A thermosiphon heat exchanger is a type of two-phase heat exchanger that relies on gravity and the natural circulation of the working medium through a two-phase phase change (evaporation / condensation). It is a pump-free two-phase heat exchanger, also called a gravity thermosiphon. Therefore, in a thermosiphon heat exchanger system, the evaporator is at the bottom and the condenser is at the top. How to achieve gas-liquid separation and form a complete, non-interfering cycle between the gas and liquid, how to improve the utilization rate of the heat exchange medium, and how to improve heat dissipation efficiency are the key considerations for thermosiphon heat exchanger systems. Summary of the Invention

[0003] The purpose of this invention is to provide a two-phase heat dissipation device that enables effective gas-liquid separation, improves the utilization rate of the heat exchange medium, and enhances heat dissipation efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a two-phase heat dissipation device, comprising an evaporator, a condenser, and a connecting assembly, wherein the evaporator comprises a first manifold, the condenser comprises a second manifold, and the connecting assembly comprises a first connecting pipe and a second connecting pipe. The first manifold, the first connecting pipe, the second manifold, and the second connecting pipe are sequentially connected to form an interval space. A first partition plate is provided in the cavity of the first manifold, and a second partition plate is provided in the cavity of the second manifold, wherein the first partition plate and the second partition plate are diagonally arranged in the interval space.

[0005] As a further improved technical solution of the present invention, the two-phase heat dissipation device has a first plane and horizontal and vertical directions that are perpendicular to each other in the first plane. The two-phase heat dissipation device also has a second plane located below the first plane and a third plane located above the first plane. The first collector pipe and the second collector pipe are arranged parallel to each other in the first plane and extend along the horizontal direction. The first connecting pipe and the second connecting pipe are arranged parallel to each other in the first plane and extend along the vertical direction, so that the interval space is rectangular.

[0006] As a further improved technical solution of the present invention, the evaporator further includes a third manifold, a first heat exchange tube, and a liquid tube. The third manifold is parallel to the first manifold. The opposite ends of the first heat exchange tube are respectively connected to the first manifold and the third manifold. There are multiple first heat exchange tubes, and the multiple first heat exchange tubes are arranged in a row with intervals between them. The liquid tube is located beside the row of first heat exchange tubes. The condenser further includes a fourth manifold, a second heat exchange tube, and a gas tube. The fourth manifold is parallel to the second manifold. The opposite ends of the second heat exchange tube are respectively connected to the second manifold and the fourth manifold. There are multiple second heat exchange tubes, and the multiple second heat exchange tubes are arranged in a row with intervals between them. The gas tube is located beside the row of second heat exchange tubes. The liquid tube and the gas tube are staggered and arranged on opposite sides of the interval space along the transverse direction.

[0007] As a further improvement of the present invention, it also includes a U-shaped side plate, wherein the gas pipe and the liquid pipe are each wrapped in one of the U-shaped side plates.

[0008] As a further improvement of the present invention, the first manifold includes a first end close to the liquid pipe and a second end away from the liquid pipe, and the first partition plate is disposed at a first position at the first end to distinguish the liquid pipe from a row of first heat exchange tubes; the second manifold includes a third end away from the gas pipe and a fourth end close to the gas pipe, and the second partition plate is disposed at a second position at the fourth end to distinguish the gas pipe from a row of second heat exchange tubes.

[0009] As a further improved technical solution of the present invention, the liquid pipe and the first connecting pipe are connected on the same side of the first partition plate, and the gas pipe and the second connecting pipe are connected on the opposite side of the second partition plate.

[0010] As a further improvement of the present invention, the first connecting pipe and / or the second connecting pipe and / or the third collector pipe and / or the fourth collector pipe are respectively provided with mounting plates to facilitate the installation of the two-phase heat dissipation device.

[0011] As a further improvement of the present invention, when the two-phase heat dissipation device is installed in place, the third manifold is located at the lowest point and the fourth manifold is located at the highest point.

[0012] As a further improvement of the present invention, the third manifold has an opening in the middle and is connected to an external pipe.

[0013] As a further improvement of the present invention, when the two-phase heat dissipation device is installed in place, the first plane is parallel to the horizontal plane; the second plane intersects the first plane at the first manifold and the included angle α1 between the second plane and the first plane is an acute angle; the third plane intersects the first plane at the second manifold and the included angle α2 between the third plane and the first plane is an obtuse angle.

[0014] Compared to existing technologies, the present invention has a first partition plate installed in the cavity of the first manifold and a second partition plate installed in the cavity of the second manifold. The first partition plate and the second partition plate are diagonally arranged in the space between them, which helps to separate the gas and liquid paths in the present invention. They do not interfere with each other and form a complete cycle. Thus, the present invention can recycle the heat exchange medium, improve the utilization rate of the heat exchange medium and improve the heat dissipation efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional assembly diagram of the two-phase heat dissipation device of the present invention; Figure 2 This is a partial exploded perspective view of the two-phase heat dissipation device of the present invention; Figure 3 This is another exploded perspective view of the two-phase heat dissipation device of the present invention; Figure 4 This is a partial exploded perspective view of the two-phase heat dissipation device of the present invention; Figure 5 This is another exploded perspective view of the two-phase heat dissipation device of the present invention; Figure 6 This is a side view of the two-phase heat dissipation device of the present invention; Figure 7 This is a three-dimensional assembly diagram of the components related to the rectangular space in the two-phase heat dissipation device of the present invention; Figure 8 This is a three-dimensional exploded view of the component related to the rectangular space in the two-phase heat dissipation device of the present invention. Detailed Implementation

[0016] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0017] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0018] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0019] Please refer to Figures 1 to 8 As shown, this invention discloses a two-phase heat dissipation device 100, comprising: an evaporator 101, a condenser 102, and a connecting assembly 103. The evaporator 101 includes a first manifold 11, a third manifold 13, a first heat exchange tube 15, and a liquid pipe 17. The condenser 102 includes a second manifold 12, a fourth manifold 14, a second heat exchange tube 16, and a gas pipe 18. The connecting assembly 103 includes a first connecting pipe 31 and a second connecting pipe 32. This two-phase heat dissipation device 100, configured in this way, can satisfy the heat exchange conversion between the gas and liquid phases.

[0020] Please refer to Figure 8 As shown, the first manifold 11, the first connecting pipe 31, the second manifold 12, and the second connecting pipe 32 are sequentially connected to form a spacer 104. In a specific embodiment, the first manifold 11 and the second manifold 12 are parallel within the first plane P1 and extend laterally, while the first connecting pipe 31 and the second connecting pipe 32 are parallel within the first plane P1 and extend vertically, making the spacer 104 rectangular. This rectangular design of the spacer 104 makes the structure of the invention simple and square in shape, thus facilitating assembly.

[0021] Please continue to refer to Figures 1 to 8 And special reference Figure 7 and Figure 8As shown, the first manifold 11 has a first partition plate 41 inside its cavity, and the second manifold 12 has a second partition plate 42 inside its cavity. The first partition plate 41 and the second partition plate 42 are arranged diagonally on the rectangular space 104, which facilitates the separation of the gas and liquid paths in this invention. They do not interfere with each other and form a complete cycle. Thus, this invention can recycle the heat exchange medium and improve efficiency.

[0022] Please refer to Figures 1 to 8 And key reference Figure 6 As shown, the two-phase heat dissipation device 100 has a first plane P1 defined by the space 104 and mutually perpendicular horizontal and vertical directions within the first plane P1. The two-phase heat dissipation device 100 also has a second plane P2 and a third plane P3. The second plane P2 is located (obliquely) below the first plane P1, and the third plane P3 is located (obliquely) above the first plane P1. That is, the first heat exchange tube 15 in the second plane P2 carries liquid, which is converted into gas after heat exchange and then flows upward to one side; the second heat exchange tube 16 in the third plane P3 carries gas, which is converted into liquid after heat exchange and then flows downward to the other side.

[0023] Please refer to Figures 1 to 6 As shown, the evaporator 101 includes a first manifold 11, a third manifold 13, a first heat exchange tube 15, and a liquid tube 17, all located within the second plane P2. The third manifold 13 is parallel to the first manifold 11. The opposite ends of the first heat exchange tube 15 are connected to the first manifold 11 and the third manifold 13, respectively. Multiple first heat exchange tubes 15 are arranged in a row with intervals between them. The liquid tube 17 is located beside the row of first heat exchange tubes 15. In other words, the second heat exchange tube 16 in the third plane P3 carries gas, which is converted to liquid after heat exchange and then flows to the other side, descending via the liquid tube 17.

[0024] Please refer to Figures 1 to 6 As shown, the condenser 102 includes a second manifold 12, a fourth manifold 14, a second heat exchange tube 16, and a gas pipe 18, all located within a third plane P3. The fourth manifold 14 is parallel to the second manifold 12. The opposite ends of the second heat exchange tube 16 are connected to the second manifold 12 and the fourth manifold 14, respectively. Multiple second heat exchange tubes 16 are arranged in a row with intervals between them. The gas pipe 18 is located beside a row of second heat exchange tubes 16. In other words, the first heat exchange tube 15 in the second plane P2 carries liquid, which is converted to gas after heat exchange and then flows to one side, ascending via the gas pipe 18.

[0025] Please refer to Figures 1 to 8 As shown, the liquid pipe 17 and the gas pipe 18 are offset and positioned on opposite sides of the space 104 along the lateral direction. This offset arrangement satisfies the requirement of separating the gas and liquid paths in this invention so that they do not interfere with each other.

[0026] Please refer to Figures 1 to 8 And special reference Figure 5 As shown, the present invention also includes a U-shaped side plate 19, with the gas pipe 18 and the liquid pipe 17 each encased within one of the U-shaped side plates 19. The function of the U-shaped side plate 19 is to protect the gas pipe 18 and the liquid pipe 17, ensuring welding strength, and to block wind, ensuring that all air (external air) passes through the central heat exchange area. Furthermore, fins are provided between adjacent heat exchange pipes in the heat exchange area to accelerate heat exchange and improve heat exchange efficiency.

[0027] Please refer to Figure 7 and Figure 8 As shown, the first manifold 11 includes a first end 111 near the liquid pipe 17 and a second end 112 away from the liquid pipe 17. A first partition plate 41 is disposed at a first position at the first end 111 to distinguish the liquid pipe 17 from a row of first heat exchange pipes 15. The second manifold 12 includes a third end 121 away from the gas pipe 18 and a fourth end 122 near the gas pipe 18. A second partition plate 42 is disposed at a second position at the fourth end 122 to distinguish the gas pipe 18 from a row of second heat exchange pipes 16. In other words, the present invention has requirements on the placement of the first partition plate 41 and the second partition plate 42. If the first partition plate 41 is placed between two adjacent first heat exchange pipes 15, or if the second partition plate 42 is placed between two adjacent second heat exchange pipes 16, it will cause interference between gas and liquid, and a circulation loop cannot be formed.

[0028] Please refer to Figures 1 to 8 As shown, the liquid pipe 17 is connected to the first connecting pipe 31 on the same side of the first partition plate 41, and the gas pipe 18 is connected to the second connecting pipe 32 on the opposite side of the second partition plate 42. This connection configuration ensures the realization of the circulation loop.

[0029] Please refer to Figures 1 to 8 As shown, the first connecting pipe 31 and / or the second connecting pipe 32 and / or the third manifold 13 and / or the fourth manifold 14 are respectively provided with mounting plates to facilitate the installation of the two-phase heat dissipation device 100.

[0030] Please refer to Figures 1 to 8 As shown, when the two-phase heat dissipation device 100 is installed in place, the third manifold 13 is at the lowest point and the fourth manifold 14 is at the highest point.

[0031] Please refer to Figures 1 to 8As shown, the third manifold 13 has an opening in the middle and is connected to an external pipe 10. The function of the external pipe 10 is to allow the heat exchange medium to be introduced before circulation and to allow the heat exchange medium to flow out after circulation.

[0032] Please refer to Figure 6 As shown, when the two-phase heat dissipation device 100 is installed, the first plane P1 is parallel to the horizontal plane. The second plane P2 intersects the first plane P1 at the first manifold 11, and the angle α1 between the second plane P2 and the first plane P1 is an acute angle; the third plane P3 intersects the first plane P1 at the second manifold 12, and the angle α2 between the third plane P3 and the first plane P1 is an obtuse angle. In other words, the first plane P1, the second plane P2, and the third plane P3 form a three-fold shape. This three-fold design helps to ensure stability while also facilitating the circulation of both gas and liquid paths.

[0033] It should be noted that the first manifold 11, the second manifold 12, the third manifold 13, the fourth manifold 14, the first heat exchange tube 15, the second heat exchange tube 16, the liquid tube 17, and the gas tube 18, as well as the first connecting tube 31 and the second connecting tube 32 used for connection, are all hollow tubular. Therefore, the above hollow and tubular components can be used for the flow of heat exchange medium.

[0034] Please refer to the figure. In the specific embodiment, the first connecting pipe 31 and / or the second connecting pipe 32 are connected to the corresponding connection positions of the first manifold 11 and / or the second manifold 12 through pipe fittings 20. In addition, it is easy to imagine that in other embodiments, the first connecting pipe 31 and / or the second connecting pipe 32 can also be connected and connected by inserting their own ends into the first manifold 11 and / or the second manifold 12.

[0035] In this invention, the heat exchange medium in the two-phase heat dissipation device 100 is one type (such as Freon), but the phase of the heat exchange medium can be either gas or liquid.

[0036] The working principle of this invention is as follows: the same heat exchange medium undergoes gas-liquid two-phase circulation and conversion within the two-phase heat dissipation device 100. Please refer to... Figure 5 And combined Figure 7The specific process of the cyclic conversion, as indicated by the arrows in the diagram, is as follows: The gas in the top condenser 102 flows downward through the fourth manifold 14 and exchanges heat with the outside air through the second heat exchange tube 16, becoming condensate. The condensate collects on the left side of the second partition plate 42 and flows to the left through the second manifold 12 to reach the liquid pipe 17. The condensate in the liquid pipe 17 then flows downward through gravity to the third manifold 13. The liquid in the bottom evaporator 101 is siphoned into the first heat exchange tube 15 through the third manifold 13 and exchanges heat with the outside air, becoming steam. The steam flows to the right side of the first partition plate 41 and flows to the right through the first manifold 11 to reach the gas pipe 18. The steam in the gas pipe 18 can continue to flow upward to the fourth manifold 14, and so on.

[0037] In summary, by providing a first partition plate 41 in the cavity of the first manifold 11 and a second partition plate 42 in the cavity of the second manifold 12, with the first partition plate 41 and the second partition plate 42 arranged diagonally in the space 104, the present invention facilitates the separation of the gas and liquid paths in the present invention, ensuring that they do not interfere with each other and forming a complete circulation. Thus, the present invention enables the recycling of the heat exchange medium and improves the utilization efficiency of the heat exchange medium.

[0038] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A two-phase heat dissipation device, comprising an evaporator (101), a condenser (102), and a connecting assembly (103), wherein the evaporator (101) includes a first manifold (11), the condenser (102) includes a second manifold (12), and the connecting assembly (103) includes a first connecting pipe (31) and a second connecting pipe (32), wherein the first manifold (11), the first connecting pipe (31), the second manifold (12), and the second connecting pipe (32) are sequentially connected to form a space (104), characterized in that: The first manifold (11) has a first partition plate (41) inside its cavity, and the second manifold (12) has a second partition plate (42) inside its cavity. The first partition plate (41) and the second partition plate (42) are arranged diagonally on the space (104).

2. The two-phase heat dissipation device as described in claim 1, characterized in that: The two-phase heat dissipation device (100) has a first plane (P1) and a horizontal and a vertical plane that are perpendicular to each other in the first plane (P1). The two-phase heat dissipation device (100) also has a second plane (P2) located below the first plane (P1) and a third plane (P3) located above the first plane (P1). The first manifold (11) and the second manifold (12) are arranged parallel to each other in the first plane (P1) and extend along the horizontal plane. The first connecting pipe (31) and the second connecting pipe (32) are arranged parallel to each other in the first plane (P1) and extend along the vertical plane, so that the interval space (104) is rectangular.

3. The two-phase heat dissipation device as described in claim 2, characterized in that: The evaporator (101) further includes a third manifold (13), a first heat exchange tube (15), and a liquid tube (17). The third manifold (13) is parallel to the first manifold (11). The opposite ends of the first heat exchange tube (15) are connected to the first manifold (11) and the third manifold (13), respectively. There are multiple first heat exchange tubes (15), and the multiple first heat exchange tubes (15) are arranged in a row with intervals between each other. The liquid tube (17) is located on the side of a row of first heat exchange tubes (15). The condenser (102) further includes a fourth manifold (14), a second heat exchange tube (16), and a gas pipe (18). The fourth manifold (14) is parallel to the second manifold (12). The opposite ends of the second heat exchange tube (16) are connected to the second manifold (12) and the fourth manifold (14), respectively. There are multiple second heat exchange tubes (16), and the multiple second heat exchange tubes (16) are arranged in a row with intervals between each other. The gas pipe (18) is located on the side of a row of second heat exchange tubes (16). The liquid pipe (17) and the gas pipe (18) are misaligned and arranged on opposite sides of the space (104) along the transverse direction.

4. The two-phase heat dissipation device as described in claim 3, characterized in that: It also includes a U-shaped side plate (19), in which the air tube (18) and the liquid tube (17) are each wrapped in a U-shaped side plate (19).

5. The two-phase heat dissipation device as described in claim 3, characterized in that: The first manifold (11) includes a first end (111) near the liquid pipe (17) and a second end (112) away from the liquid pipe (17). The first partition plate (41) is disposed at a first position at the first end (111) to distinguish the liquid pipe (17) from a row of the first heat exchange tubes (15). The second manifold (12) includes a third end (121) away from the gas pipe (18) and a fourth end (122) close to the gas pipe (18). The second partition plate (42) is disposed at a second position at the fourth end (122) to distinguish the gas pipe (18) from a row of the second heat exchange tubes (16).

6. The two-phase heat dissipation device as described in claim 3, characterized in that: The liquid pipe (17) is connected to the first connecting pipe (31) on the same side of the first partition plate (41), and the gas pipe (18) is connected to the second connecting pipe (32) on the opposite side of the second partition plate (42).

7. The two-phase heat dissipation device as described in claim 3, characterized in that: The first connecting pipe (31) and / or the second connecting pipe (32) and / or the third collector pipe (13) and / or the fourth collector pipe (14) are respectively provided with mounting plates to facilitate the installation of the two-phase heat dissipation device (100).

8. The two-phase heat dissipation device as described in claim 7, characterized in that: When the two-phase heat dissipation device (100) is installed in place, the third manifold (13) is at the lowest point and the fourth manifold (14) is at the highest point.

9. The two-phase heat dissipation device as described in claim 7, characterized in that: The third manifold (13) has an opening in the middle and is connected to an external pipe (10).

10. The two-phase heat dissipation device as described in claim 7, characterized in that: When the two-phase heat dissipation device (100) is installed in place, the first plane (P1) is parallel to the horizontal plane; The second plane (P2) intersects the first plane (P1) at the first manifold (11), and the included angle α1 between the second plane (P2) and the first plane (P1) is an acute angle; The third plane (P3) intersects the first plane (P1) at the second manifold (12), and the included angle α2 between the third plane (P3) and the first plane (P1) is an obtuse angle.

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