Two-phase cold plate and thermosiphon system

Abstract

This utility model discloses a two-phase cold plate and a thermosiphon system. The two-phase cold plate includes a cover plate, a sealing strip, and spacers. The sealing strip is disposed between two cover plates and includes two first sealing strips and two second sealing strips disposed opposite each other. The two first sealing strips and the two second sealing strips are spaced apart and connected end to end around the two cover plates, forming a closed cavity together with the two cover plates. Several spacers are disposed in the cavity, with each end of the spacers connected to two first sealing strips. The spacers divide the cavity into multiple channels, and adjacent channels are connected. One of the cover plates has at least one first opening and at least one second opening. The first opening is disposed near one of the second sealing strips, and the second opening is disposed near the other second sealing strip. The first opening and the second opening are respectively connected to the corresponding channels. Thus, the size of the first opening and the second opening can be adjusted according to requirements.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a two-phase cold plate and thermosiphon system. Background Technology

[0002] In existing technologies, thermosiphon systems often employ thinner cover plates to minimize the thickness of the two-phase cold plates. However, the joints of these existing two-phase cold plates are located on the side of the cover plate, and the size of these joints is often limited by the thickness of the two-phase cold plates, making it impossible to adjust the diameter of the joint pipe.

[0003] Therefore, it is necessary to provide a two-phase cold plate and thermosiphon system to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a two-phase cold plate and a thermosiphon system, wherein the dimensions of the first and second openings are not limited by the thickness of the two-phase cold plate and can be adjusted according to actual needs.

[0005] To achieve the above objectives, this utility model adopts the following technical solution one:

[0006] A two-phase cold plate, comprising:

[0007] Cover plate;

[0008] A seal is disposed between the two cover plates. The seal includes two first seals disposed opposite each other along the width direction of the cover plates and two second seals disposed opposite each other along the length direction of the cover plates. The two first seals and the two second seals are spaced apart and connected end to end around the two cover plates. The two first seals and the two second seals together with the two cover plates form a closed cavity.

[0009] A plurality of spacers are disposed within the cavity, with each end of the spacer connected to one of the two first seals. The plurality of spacers divide the cavity into multiple channels, with adjacent channels connected.

[0010] One of the cover plates has at least one first opening and at least one second opening, the first opening being disposed near one of the second seals and the second opening being disposed near the other of the second seals, the first opening and the second opening respectively communicating with the corresponding channel.

[0011] Furthermore, the two-phase cold plate also includes a first connector and a second connector disposed on one of the cover plates, wherein the first connector corresponds to and engages with the first port, and the second connector corresponds to and engages with the second port.

[0012] Furthermore, the spacer bar is provided with a plurality of grooves, and the grooves are connected to the adjacent channels.

[0013] Furthermore, the cross-section perpendicular to the extension direction of the groove is arc-shaped, rectangular, pointed, or trapezoidal.

[0014] Furthermore, the grooves on two adjacent spacers are formed by a single drilling or punching process.

[0015] Furthermore, the thickness of the two cover plates is less than the thickness of the seal.

[0016] Furthermore, the second seal has a groove, and the end of the spacer has a protrusion, with the groove engaging with the protrusion.

[0017] Furthermore, the second seal has a protrusion, and the end of the spacer has a groove that engages with the protrusion.

[0018] Furthermore, the plurality of the spacers are arranged parallel to each other, and some of the spacers are fixedly connected to one of the cover plates by fasteners.

[0019] To achieve the above objectives, this utility model adopts the following technical solution two:

[0020] A thermosiphon system comprising a two-phase cold plate as described above.

[0021] It is installed within the liquid cooling system.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] In summary, this utility model discloses a two-phase cold plate, which includes a cover plate, sealing strips, and spacers. The sealing strips include two opposing first sealing strips and two opposing second sealing strips, which, together with the two cover plates, form a closed cavity. Several spacers are disposed within the cavity, dividing it into multiple channels, with adjacent channels communicating with each other. One cover plate has at least one first through hole and at least one second through hole. By positioning the first through hole near one of the second sealing strips and the second through hole near the other second sealing strip, the first and second through holes communicate with their corresponding channels. By providing the first and second through holes on one side of the cover plate, the dimensions of the first and second through holes are not limited by the thickness of the sealing strips and can be adjusted according to requirements, thereby improving the adaptability of the two-phase cold plate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the two-phase cold plate of this utility model;

[0025] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0026] Figure 3 yes Figure 1 Top view;

[0027] Figure 4 yes Figure 3 A schematic diagram of the cross-section along AA;

[0028] Figure 5 yes Figure 1 A schematic diagram of three-dimensional diversity;

[0029] Figure 6 This is a top view of the cover plate, partition strip, and sealing strip in this utility model;

[0030] Figure 7 This is a perspective view of the spacer strip of this utility model;

[0031] Figure 8 This is a front view of the spacer strip of this utility model;

[0032] Figure 9 This is the front view of the second seal in this utility model. Detailed Implementation

[0033] 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.

[0034] 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” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0035] Please refer to Figures 1 to 9This utility model discloses a two-phase cold plate 100, which includes a cover plate 1, a sealing strip 2, and spacers 3. The two cover plates 1 are arranged parallel to each other and are identical in shape and size. The sealing strip 2 is disposed between the two cover plates 1 and includes two first sealing strips 21 arranged opposite each other in the width direction D1-D1 of the cover plate 1 and two second sealing strips 22 arranged opposite each other in the length direction D2-D2 of the cover plate 1. The two first sealing strips 21 and the two second sealing strips 22 are spaced apart and connected end-to-end around the two cover plates 1, forming a closed cavity 101. Several spacers 3 are disposed within the cavity 101, with their opposite ends connected to the two first sealing strips 21. The spacers 3 divide the cavity 101 into multiple channels 102, with adjacent channels 102 connected. One of the cover plates 1 has at least a first opening 103 and at least one second opening 104. The first opening 103 is adjacent to one of the second seals 22, and the second opening 104 is adjacent to the other second seal 22. The first opening 103 and the second opening 104 are respectively connected to the corresponding channels 102. With this configuration, refrigerant outside the two-phase cold plate 100 flows into the channel 102 through the first opening 103 for heat exchange and then flows out through the second opening 104, or refrigerant flows into the channel 102 through the second opening 104 for heat exchange and then flows out through the first opening 103. By providing the first opening 103 and the second opening 104 on one side of the cover plate 1, the size of the first opening 103 and the second opening 104 is not limited by the thickness of the seal 2 and can be adjusted as needed, thereby improving the adaptability of the two-phase cold plate 100.

[0036] Please refer to Figures 1 to 5 The two-phase cold plate 100 also includes a first connector 4 and a second connector 5 disposed on one of the cover plates 1. The first connector 4 corresponds to and engages with the first opening 103, and the second connector 5 corresponds to and engages with the second opening 104. In this embodiment, the first connector 4 and the second connector 5 are connected to external equipment of the two-phase cold plate 100. The dimensions of the first connector 4 and the second connector 5 can be adjusted as needed, unaffected by the thickness of the sealing strip 2, thus improving the adaptability of the two-phase cold plate 100. In other embodiments, the first opening 103 is disposed on one of the cover plates 1, and the second opening 104 is disposed on the other cover plate 1.

[0037] Please refer to Figures 5 to 6 The spacers 3 extend along the length direction D1-D1 of the cover plate 1, and several spacers 3 are arranged parallel and spaced apart along the width direction D2-D2 of the cover plate 1. This ensures that the channels 102 extend along the length direction D1-D1, and adjacent channels 102 are spaced apart along the width direction D2-D2. This guarantees that the heat load on the two-phase cold plates 100 remains uniform along the length direction D1-D1, achieving the desired heat exchange effect.

[0038] The spacer bar 3 has a plurality of grooves 301, which communicate with adjacent channels 102. In this embodiment, the grooves 301 are spaced apart along the length direction D1-D1 of the spacer bar 3, and each groove 301 extends along the width direction D2-D2 of the spacer bar 3. Each groove 301 includes a first opening and a second opening opposite each other along the width direction D2-D2 of the spacer bar 3. The first opening and the second opening are respectively connected to the corresponding channel 102 to form a passage for refrigerant flow. This ensures that the heat load of the two-phase cold plates 100 remains uniform along the width direction D2-D2, thereby achieving the expected heat exchange effect.

[0039] Please refer to Figure 7 In one embodiment, the cross-section perpendicular to the groove 301 is arc-shaped, rectangular, pointed, or trapezoidal. The groove 301 is formed by drilling or punching. Because the thickness of the spacer 3 is small, by providing the groove 301 on the spacer 3, the flow area of ​​the adjacent channel 102 can be increased, the flow resistance of the refrigerant can be reduced, and thus the heat exchange effect of the two-phase cold plate 100 can be improved. The cross-section is arc-shaped, including semi-circular and semi-elliptical shapes. The cross-section is trapezoidal, including regular trapezoids and inverted trapezoids. The above are not limited.

[0040] The grooves 301 on two adjacent spacers 3 are formed by a single drilling or punching process. Specifically, the two spacers 3 are joined together, and the connection between the two spacers 3 is drilled or punched using a drilling or punching machine. The grooves 301 of the two spacers 3 are processed simultaneously in one operation, saving CNC material and processing costs. By reducing the milling time of the grooves 301 of the spacers 3, production efficiency is improved.

[0041] Please refer to Figure 4 The thickness of the two cover plates 1 is less than the thickness of the sealing strip 2. In this embodiment, the cover plates 1 are made of thin aluminum plates, and the spacers 3 are made of aluminum strips. This improves the heat exchange efficiency of the two-phase cold plate 100.

[0042] Please refer to Figure 6 as well as Figures 8 to 9In one embodiment, the second seal 22 has a slot 201, and the end of the spacer 3 has a protrusion 31. The slot 201 and the protrusion 31 cooperate with each other. Specifically, the slots 201 of the two second seals 22 are arranged face to face, and the slots 201 of each second seal 22 are spaced apart along the length direction D1-D1 of the second seal 22. The gap between the slots 201 on the second seals 22 can be adjusted as needed. The slot 201 is recessed inward from the edge of the spacer 3, and the end of the spacer 3 has an outwardly protruding protrusion 31. The shape of the protrusion 31 is adapted to the shape of the slot 201. In this embodiment, the protrusion 31 is block-shaped. In other embodiments, the protrusion 31 can also be semi-circular, pointed, or other shapes. In this way, it is easy to directly engage the spacer 3 with the second seal 22, which improves the assembly efficiency and the stability of the spacer 3 between the two cover plates 1.

[0043] In another embodiment, the second seal 22 has a protrusion, and the end of the spacer 3 has a groove that engages with the protrusion. Specifically, the protrusions of the two second seals 22 are arranged face-to-face, and the protrusions of each second seal 22 are spaced apart along the length direction D1-D1 of the second seal 22. The gap between the protrusions on the second seals 22 can be adjusted as needed. The protrusions extend outward from the edge of the spacer 3, and the end of the spacer 3 has an inwardly recessed groove, the shape of which matches the shape of the groove. In this embodiment, the protrusion is block-shaped. In other embodiments, the protrusion can also be semi-circular, pointed, or other shapes. This facilitates the direct engagement of the spacer 3 with the second seal 22, improving assembly efficiency and the stability of the spacer 3 between the two cover plates 1.

[0044] Please refer to Figures 5 to 6 Multiple spacers 3 are arranged parallel to each other, and some of the spacers 3 are fixedly connected to one of the cover plates 1 by fasteners. One of the spacers 3 has several positioning holes 302, which are staggered with the grooves 301. (Reference) Figure 6 As shown, the projection of the positioning hole 302 does not coincide with the projection of the groove 301. The fastener passes through the positioning hole 302 and is fixedly connected to the cover plate 1, which not only improves the overall structural strength of the spacer 3 and the cover plate 1, but also avoids interference between the fastener and the groove 301, affecting the flow and velocity of the refrigerant, thereby further improving the heat exchange efficiency of the two-phase cold plate 100.

[0045] This utility model also discloses a thermosiphon system, which includes a two-phase cold plate 100, a condenser, and a first pipe and a second pipe connecting the two-phase cold plate 100 to the condenser. The first pipe is connected to a first connector 4, and the second pipe is connected to a second connector 5. In this embodiment, there are two first connectors 4 and two first pipes, each connected to a corresponding first connector 4. There are four second connectors 5 and four second pipes, each connected to a corresponding second connector 5. When the refrigerant flows from the first pipe through the first connector 4 into the channel 102 of the two-phase cold plate 100, it absorbs heat and changes from liquid to gas as it flows through the groove 301 of the spacer 3 towards the second connector 5 within the channel 102. The gaseous refrigerant then flows through the second connector 5 into the second pipe, and from there into the condenser. In the condenser, it releases heat and changes back to liquid refrigerant to achieve heat exchange. By using the two-phase cold plate 100 in this invention, the first connector 4 and the second connector 5 are disposed on one of the cover plates 1. This allows for single-sided installation of the two-phase cold plate 100. Furthermore, the cover plate 1 of the two-phase cold plate 100 is relatively thin, further improving heat exchange efficiency.

[0046] In summary, this utility model discloses a two-phase cold plate 100, which includes a cover plate 1, a sealing strip 2, and spacers 3. The sealing strip 2 includes two opposing first sealing strips 21 and two opposing second sealing strips 22, which, together with the two cover plates 1, form a closed cavity 101. A plurality of spacers 3 are disposed within the cavity 101, dividing it into multiple channels 102, with adjacent channels 102 communicating with each other. One of the cover plates 1 has at least one first opening 103 and at least one second opening 104. By positioning the first opening 103 close to one of the second sealing strips 22 and the second opening 104 close to the other second sealing strip 22, the first opening 103 and the second opening 104 communicate with the corresponding channels 102. By setting a first opening 103 and a second opening 104 on the cover plate 1 on one side, the size of the first opening 103 and the second opening 104 is not limited by the thickness of the seal 2 and can be adjusted according to needs, thereby improving the adaptability of the two-phase cold plate 100.

[0047] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the 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 utility model 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" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0048] The above embodiments are only for illustration and not for limiting the technical solutions described in this utility model. The understanding of this specification should be based on those skilled in the art. For example, the directional descriptions such as "front", "back", "left", "right", "up", and "down" are important. Although this specification has described the present invention 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 this utility model. All technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model.

Claims

1. A two-phase cold plate, characterized by, include: Cover plate (1); A seal (2) is disposed between the two cover plates (1). The seal (2) includes two first seals (21) disposed opposite to each other along the width direction of the cover plate (1) and two second seals (22) disposed opposite to each other along the length direction of the cover plate (1). The two first seals (21) and the two second seals (22) are spaced apart and connected end to end around the two cover plates (1). The two first seals (21) and the two second seals (22) together with the two cover plates (1) form a closed cavity (101). A partition (3) is provided in the cavity (101). The two ends of the partition (3) are respectively connected to two first seals (21). The partition (3) divides the cavity (101) into multiple channels (102). Two adjacent channels (102) are connected. One of the cover plates (1) has at least one first opening (103) and at least one second opening (104), the first opening (103) being disposed near one of the second seals (22) and the second opening (104) being disposed near the other of the second seals (22), the first opening (103) and the second opening (104) being respectively connected to the corresponding channel (102).

2. The two-phase cold plate of claim 1, wherein: The two-phase cold plate also includes a first connector (4) and a second connector (5) disposed on one of the cover plates (1), wherein the first connector (4) is correspondingly engaged with the first port (103) and the second connector (5) is correspondingly engaged with the second port (104).

3. The two-phase cold plate of claim 1, wherein: The spacer (3) is provided with a plurality of grooves (301), and the grooves (301) are connected to the adjacent channels (102).

4. The two-phase cold plate of claim 3, wherein: The cross section perpendicular to the extension direction of the groove (301) is arc-shaped, rectangular, pointed, or trapezoidal.

5. The two-phase cold plate of claim 4, wherein: The grooves (301) on two adjacent spacers (3) are formed by a single drilling or punching process.

6. The two-phase cold plate of claim 1, wherein: The thickness of the two cover plates (1) is less than the thickness of the seal (2).

7. The two-phase cold plate of claim 1, wherein: The second seal (22) is provided with a slot (201), and the end of the spacer (3) is provided with a protrusion (31), and the slot (201) cooperates with the protrusion (31).

8. The two-phase cold plate of claim 1, wherein: The second seal (22) has a protrusion (31), and the end of the spacer (3) has a slot (201) that cooperates with the protrusion (31).

9. The two-phase cold plate of claim 1, wherein: Multiple spacers (3) are arranged in parallel to each other, and some of the spacers (3) are fixedly connected to one of the cover plates (1) by fasteners.

10. A thermosiphon system characterized by: Including the two-phase cold plate as described in any one of claims 1-9.

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