Heat dissipation unit, heat dissipation assembly and signal transmission device

Abstract

The embodiment of the utility model discloses a heat dissipation unit, a heat dissipation assembly and a signal transmission device, a first base part of the heat dissipation unit is provided with a first groove and a heat conduction surface used for heat conduction, and a second base part is provided with a second groove which is opposite to the first groove in direction. When the first groove and the second groove are oppositely combined, a flow channel can be formed. Therefore, the first flow guide groove and the second flow guide groove are communicated with each other, so that the heat exchange liquid can alternately flow through the first base part and the second base part in the extending direction of the flow channel. Therefore, the thickness of the first base part is reduced, and the space occupied by the first base part is reduced. Meanwhile, the first flow guide groove and the second flow guide groove are oppositely arranged, so that after the first base part and the second base part are mutually fixed, the first flow guide groove and the second flow guide groove can be mutually communicated. The heat dissipation unit does not need to be provided with a partition plate for the flow channel independently, and therefore the structure and the installation procedure of the heat dissipation unit are simplified.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and in particular to a heat dissipation unit, heat dissipation component and signal transmission device. Background Technology

[0002] Optical modules can be used in data centers, telecommunications, and the Internet of Things (IoT) to enable high-speed signal transmission between devices. During prolonged use, optical modules generate heat. If the module temperature becomes too high, signal transmission performance will degrade, and the module's lifespan will be reduced. Therefore, effective heat dissipation is necessary for optical modules.

[0003] However, optical modules are limited by space height, making it difficult to install heat dissipation equipment within them. How to install heat dissipation equipment within limited space becomes a problem that needs to be solved. Utility Model Content

[0004] In view of this, the present invention provides a heat dissipation unit, a heat dissipation component and a signal transmission device, which utilizes a first groove provided on a first base and a second groove provided on a second base to form a flow channel, so that the heat exchange liquid can flow alternately through the first base and the second base in the extension direction of the flow channel, thereby reducing the thickness of the first base.

[0005] According to a first aspect of the present invention, a heat dissipation unit is provided, the heat dissipation unit comprising:

[0006] A first base includes a plurality of spaced-apart first guide grooves, each first guide groove having mutually opposing first grooves and heat-conducting surfaces; and

[0007] The second base includes a plurality of second guide grooves spaced apart, each second guide groove having a second groove facing the opposite direction to the first groove. The first base and the second base are fixedly connected, and the first groove and the second groove form a flow channel, the flow channel having an inlet and an outlet.

[0008] In the extension direction of the flow channel, each of the first guide channels and each of the second guide channels are arranged alternately in sequence, and adjacent first guide channels and second guide channels are partially arranged opposite to each other and connected.

[0009] Furthermore, the first base is a heat-conducting plate, the first base includes a plurality of first recessed areas, the plurality of first recessed areas are recessed in a direction away from the second base, and the first groove and the heat-conducting surface are respectively formed on both sides of the first recessed area.

[0010] Furthermore, each of the first guide channels is arranged in parallel and perpendicular to the second guide channel;

[0011] In the extending direction of the second guide channel, a plurality of first guide channels are arranged at intervals, and each second guide channel is connected to the end of two adjacent first guide channels on the same side.

[0012] Furthermore, the second base is the heat-conducting plate, and the second base includes a plurality of second recessed areas, which are recessed in a direction away from the first base to form a plurality of second flow channels.

[0013] Furthermore, the heat dissipation unit also includes:

[0014] Multiple heat exchange units are provided in multiple first guide channels, and each heat exchange unit has multiple heat exchange channels. The extending direction of the heat exchange channels is consistent with the extending direction of the first guide channels.

[0015] Furthermore, in the extending direction of the first guide channel, the heat exchange channel is spaced apart from the two ends of the corresponding first guide channel, and the two ends of the heat exchange channel are connected to the second groove.

[0016] Furthermore, the first base also includes a first connection region, and the first recessed region is recessed by the first connection region;

[0017] The second base includes a second connecting region, and the second guide groove is recessed by the second connecting region;

[0018] The first base and the second base are fixedly connected, the first connection area and the second connection area are partially in contact, and one side of the heat exchange part is in contact with the bottom of the first guide channel, and the other side is in contact with the second connection area.

[0019] Furthermore, both the first base and the second base include a body and two connecting bodies, the two connecting bodies being connected to the body, and the first or second flow channel being disposed on the body;

[0020] The second base also includes two third guide channels, which are respectively disposed on the two connecting bodies. One end of the third guide channel is connected to the heat exchange part, and the other end forms the liquid outlet or the liquid inlet.

[0021] Secondly, this utility model embodiment also provides a heat dissipation component, the heat dissipation component comprising:

[0022] Two pipelines;

[0023] The shell portion has a first window; and

[0024] A heat dissipation unit includes a first base and a second base. The first base includes a plurality of first guide grooves spaced apart, each first guide groove having a first groove and a heat-conducting surface facing away from each other. The second base includes a plurality of second guide grooves spaced apart, each second guide groove having a second groove facing opposite to the first groove. The first base and the second base are fixedly connected. The first groove and the second groove form a flow channel. The flow channel has a liquid inlet and a liquid outlet. Two pipes are respectively connected to the liquid inlet and the liquid outlet. The shell covers at least part of the heat dissipation unit, and the heat-conducting surface is exposed to the first window.

[0025] In the extension direction of the flow channel, each of the first guide channels and each of the second guide channels are arranged alternately in sequence, and the first guide channel and the adjacent second guide channel are partially arranged opposite to each other and connected.

[0026] Furthermore, both the first base and the second base include a body and two connecting bodies, the two connecting bodies being connected to the body, and the first or second flow channel being disposed on the body;

[0027] The second base is the heat-conducting plate. The second base includes a plurality of second recessed areas. The plurality of second recessed areas are recessed in a direction away from the first base and form a plurality of second guide channels and two third guide channels. One end of the third guide channel is connected to the second guide channel, and the other end forms the liquid outlet or the liquid inlet.

[0028] The shell includes a first shell, a second shell, and a base. The base has a clearance groove. The second base is disposed on the base, and the clearance groove avoids the second recessed area. The first shell has a first window. The second shell abuts against the base and is joined with the first shell to cover the base and the main body.

[0029] Thirdly, this utility model embodiment also provides a signal transmission device, the signal transmission device comprising:

[0030] First connecting part;

[0031] The second connection part includes a heat source device;

[0032] The mounting section includes a mounting cavity having a connection port and a second window; and

[0033] According to the heat dissipation assembly described in the second aspect above, the heat-conducting surface passes through the first window and the second window into the mounting cavity, the second connecting part enters the mounting cavity through the connecting port and connects with the first connecting part, and the heat source device abuts against the heat-conducting surface.

[0034] Furthermore, the first connecting portion includes a circuit board and a socket disposed on the circuit board;

[0035] The mounting part is fixedly connected to the circuit board, and the second connecting part is a plug. The plug and the socket can be detachably plugged into each other and connected to the circuit board for communication.

[0036] The heat dissipation unit, heat dissipation assembly, and signal transmission device of this utility model embodiment are provided with a first groove and a heat-conducting surface for heat conduction on a first base of the heat dissipation unit, and a second groove facing the opposite direction to the first groove on a second base. When the first groove and the second groove are aligned, a flow channel can be formed. This allows the first and second flow channels to communicate with each other, enabling the heat exchange fluid to flow alternately through the first and second bases in the direction of the flow channel's extension. This reduces the thickness of the first base and its space occupation. Simultaneously, by partially aligning the first and second flow channels, the first and second flow channels can be interconnected after the first and second bases are fixed together. This eliminates the need for a separate partition for the flow channel in the heat dissipation unit, simplifying its structure and installation process. Furthermore, the shell can be used to protect the heat dissipation unit from compression and impacts. Attached Figure Description

[0037] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0038] Figure 1 This is a schematic diagram of the heat dissipation unit according to an embodiment of the present invention;

[0039] Figure 2 This is an exploded view of the heat dissipation unit according to an embodiment of the present invention;

[0040] Figure 3 yes Figure 2 Enlarged schematic diagram of region A in the middle;

[0041] Figure 4 This is a schematic diagram of the structure of the first base and the heat exchange section in an embodiment of the present utility model;

[0042] Figure 5 This is a schematic diagram of the structure of the second base and the heat exchange section in an embodiment of the present invention;

[0043] Figure 6 This is a cross-sectional schematic diagram of the heat dissipation unit according to an embodiment of the present utility model;

[0044] Figure 7 This is a schematic diagram showing the positional relationship between the first guide channel, the second guide channel, and the third guide channel according to an embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the heat dissipation assembly according to an embodiment of the present invention;

[0046] Figure 9 This is an exploded view of the heat dissipation assembly according to an embodiment of the present utility model;

[0047] Figure 10 This is an exploded view of one side of the signal transmission device according to an embodiment of the present invention;

[0048] Figure 11 This is an exploded view of the other side of the signal transmission device according to an embodiment of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1-First base;

[0051] 11-First groove; 12-Heat-conducting surface; 13-Liquid inlet; 14-Liquid outlet; 15-First recessed area; 16-First connecting area;

[0052] 2-Second base;

[0053] 21-Second groove; 22-Second recessed area; 23-Second connecting area;

[0054] 24-Main body; 25-Connector; 26-Baffle;

[0055] 3-Flow channel;

[0056] 31-First guide channel; 32-Second guide channel; 33-Third guide channel;

[0057] 4-Heat exchange section;

[0058] 41-Heat exchange passage;

[0059] 5- Piping;

[0060] 6-Shell;

[0061] 61-First housing; 62-Second housing; 63-Seat; 631-Allowing groove; 64-First window;

[0062] 7-First connecting part;

[0063] 71-Circuit board; 72-Socket;

[0064] 8-Second connecting part;

[0065] 81-Heat source device;

[0066] 9-Installation Section;

[0067] 91-Connection port; 92-Second window; 93-Mounting cavity. Detailed Implementation

[0068] The present invention will now be described based on embodiments, but it is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are described in detail. Those skilled in the art will fully understand the present invention even without these details. To avoid obscuring the essence of the present invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0069] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0070] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0071] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0072] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0074] Figure 1 This is a schematic diagram of the heat dissipation unit in this embodiment. Figure 2 This is an exploded view of the heat dissipation unit in this embodiment.

[0075] In some implementations, such as Figures 1-2 As shown, the heat dissipation unit in this embodiment includes a first base 1 and a second base 2. The first base 1 and the second base 2 can be connected by welding.

[0076] Figure 3 yes Figure 2 A magnified view of region A in the middle. Figure 4 This is a schematic diagram of the structure of the first base 1 and the heat exchange part 4 in this embodiment. Figure 5 This is a schematic diagram of the structure of the second base 2 and the heat exchange part 4 in this embodiment. Figure 6 This is a cross-sectional schematic diagram of the heat dissipation unit in this embodiment.

[0077] Further reference Figures 4-5 As shown, the first base 1 includes a plurality of first guide grooves 31, each of the first guide grooves 31 having a first groove 11 and a heat-conducting surface 12 that are opposite to each other.

[0078] The second base 2 includes a plurality of second flow channels 32, each of the second flow channels 32 having a second groove 21 facing opposite to the first groove 11. The heat-conducting surface 12 is located on the side of the first base 1 away from the second base 2, so as to facilitate the heat dissipation unit to dissipate heat from the heat source device 81 attached thereon.

[0079] Further reference Figure 6 As shown, when the first base 1 and the second base 2 are fixedly connected, the first groove 11 and the second groove 21 mate together to form a flow channel 3. The flow channel 3 has an inlet 13 and an outlet 14. The heat exchange fluid can flow in the flow channel 3 through the inlet 13 and the outlet 14.

[0080] Figure 7 This is a schematic diagram showing the positional relationship between the first guide channel 31, the second guide channel 32, and the third guide channel 33 in this embodiment. The outline of the first guide channel 31 is shown with a thick dashed line, and arrows indicate the flow direction of the heat exchange fluid. The first guide channel 31 is located above the second guide channel 32. The diagram also uses cross-sectional lines to show the area where the second connecting region 23 and the first connecting region 16 abut against each other.

[0081] Further reference Figure 7As shown, in the extension direction of the flow channel 3, multiple first guide channels 31 and multiple second guide channels 32 are arranged alternately in sequence, and the first guide channels 31 and adjacent second guide channels 32 are partially opposite to each other and connected. That is, when the heat exchange liquid flows into the flow channel 3, it will pass through the first guide channels 31 and the second guide channels 32 in sequence. During this process, the heat exchange liquid can exchange heat with the heat-conducting surface 12, thereby carrying away the heat on the heat-conducting surface 12.

[0082] Specifically, in the cross-sectional direction of the depth of the first guide channel 31, the first guide channel 31 partially overlaps with the adjacent second guide channel 32. The heat exchange fluid first flows along the plane of the second base 2, then turns to the first base 1, thereby entering the first guide channel 31. After flowing out of the first guide channel 31, it turns to the second base 2 again and flows into the second guide channel 32. Thus, alternating flow is achieved on the first base 1 and the second base 2.

[0083] In summary, the heat dissipation unit in this embodiment has a first groove 11 and a heat-conducting surface 12 on the first base 1, and a second groove 21 on the second base 2 facing the opposite direction to the first groove 11. When the first groove 11 and the second groove 21 are aligned, a flow channel 3 can be formed. This allows the first guide channel 31 and the second guide channel 32 to be interconnected, enabling the heat exchange fluid to flow alternately through the first base 1 and the second base 2 in the extension direction of the flow channel 3. This reduces the thickness of the first base 1 and its space occupation. Simultaneously, by partially aligning the first guide channel 31 and the second guide channel 32, and fixing the first base 1 and the second base 2 together, the first guide channel 31 and the second guide channel 32 can be interconnected. This eliminates the need for a separate partition for the flow channel 3 in the heat dissipation unit, thus simplifying the structure and installation process of the heat dissipation unit.

[0084] In some implementations, such as Figure 2 and Figure 4 As shown, the first base 1 is a heat-conducting plate. The first base 1 includes a plurality of first recessed areas 15, which are recessed in a direction away from the second base 2, and a first groove 11 and a heat-conducting surface 12 are formed on both sides of the first recessed area 15, respectively.

[0085] Specifically, the first base 1 is a stamped plate, and the first recessed area 15 is formed by a stamping process. Multiple first guide grooves 31 and corresponding multiple heat-conducting surfaces 12 are formed on the two surfaces of the stamped plate. This reduces the production cost of the first base 1 and also reduces its thickness. Simultaneously, multiple heat source devices 81 can be respectively attached to the multiple heat-conducting surfaces 12, allowing the heat dissipation unit to simultaneously dissipate heat from multiple heat source devices 81.

[0086] In some implementations, such as Figure 7As shown, a plurality of first guide channels 31 are arranged in parallel and perpendicular to the second guide channels 32. In the extending direction of the second guide channels 32, the plurality of first guide channels 31 are arranged at intervals, and each second guide channel 32 is connected to the ends of two adjacent first guide channels 31 on the same side. That is, in the extending direction of the first guide channels 31, a plurality of second guide channels 32 are disposed on both sides of at least a portion of the first guide channels 31, and the two ends of the second guide channels 32 are respectively connected to the ends of two first guide channels 31.

[0087] In this embodiment, in the cross-sectional direction of the depth of the first guide channel 31, the flow channel 3 extends along an S-shaped bend, so that multiple heat-conducting surfaces 12 are connected in series, ensuring that the heat exchange liquid can exchange heat with each heat-conducting surface 12.

[0088] In some implementations, such as Figure 5 As shown, the second base 2 is a heat-conducting plate, and includes multiple second recessed areas 22. These multiple second recessed areas 22 are recessed away from the first base 1 and respectively form multiple second flow channels 32. In this embodiment, both the first base 1 and the second base 2 are stamped plates, and the first flow channels 31 and the second flow channels 32 are manufactured using a stamping process, which can reduce the manufacturing cost of the first base 1 and the second base 2. Furthermore, it reduces the overall thickness and weight of the heat dissipation unit.

[0089] In some implementations, such as Figure 4 As shown, the heat dissipation unit also includes multiple heat exchange sections 4. Each heat exchange section 4 is disposed in a corresponding first guide groove 31, and the heat exchange section 4 has multiple heat exchange channels 41, the extending direction of the heat exchange channels 41 being consistent with the extending direction of the first guide groove 31.

[0090] Specifically, the heat exchange section 4 abuts against the bottom of the first guide channel 31. When the heat exchange liquid flows through the heat exchange channel 41, it can indirectly carry away the heat of the heat-conducting surface 12 through the first recessed area 15, thereby improving the heat exchange efficiency of the heat dissipation unit.

[0091] In some implementations, such as Figure 4 and Figure 7 As shown, in the extending direction of the first guide groove 31, the heat exchange channel 41 is spaced apart from the two ends of the corresponding first guide groove 31, and the two ends of the heat exchange channel 41 are connected to the second groove 21.

[0092] Specifically, the end of the heat exchange channel 41 and the end on the same side as the first guide channel 31 form a confluence area, which is arranged opposite to a portion of the second guide channel 32. The heat exchange fluids of multiple heat exchange channels 41 will converge in the confluence area so that the heat exchange fluid located in the confluence area can flow towards the second guide channel 32.

[0093] Optionally, the heat exchange section 4 includes multiple heat exchange elements arranged side by side. These heat exchange elements are C-shaped, with the bending directions of the multiple C-shaped structures being consistent and adjacent to each other. The opening of one C-shaped structure abuts against an adjacent C-shaped structure. This creates the aforementioned heat exchange channel 41 between two adjacent C-shaped structures.

[0094] In some implementations, such as Figure 4 As shown, the first base 1 also includes a first connecting region 16, and a first recessed region 15 is recessed by the first connecting region 16. Further referencing... Figure 5 As shown, the second base 2 includes a second connecting region 23, and the second guide groove 32 is recessed within the second connecting region 23. Further referencing... Figure 7 As shown, when the first base 1 and the second base 2 are fixedly connected, the first connecting area 16 and the second connecting area 23 partially abut together (as shown). Figure 7 (as shown in the cross-section), and one side of the heat exchange section 4 abuts against the bottom of the first guide channel 31, and the other side abuts against the second connection area 23.

[0095] In this embodiment, the heat exchange section 4 is sandwiched between the first base 1 and the second base 2, ensuring stable contact between the heat exchange section 4 and the first base 1 and preventing the heat exchange section 4 from moving. Furthermore, this facilitates the heat exchange section 4 in transferring heat from the first base 1 to the heat exchange fluid.

[0096] In some implementations, such as Figures 4-5 As shown, both the first base 1 and the second base 2 include a body 24 and two connecting bodies 25. The two connecting bodies 25 are connected to the body 24, and a first guide channel 31 or a second guide channel 32 is disposed on the body 24. The second base 2 also includes two third guide channels 33, which are respectively disposed on the two connecting bodies 25. One end of the third guide channel 33 is connected to the heat exchange section 4, and the other end forms a liquid outlet 14 or a liquid inlet 13.

[0097] Specifically, the two connectors 25 are located on the same side of the main body 24, and the two third guide channels 33 are both located on the second base 2. The two third guide channels 33 are formed by recessing into the second recessed area 22 in a direction away from the first base 1. Thus, the two third guide channels 33 are used to introduce or export heat exchange fluid to the heat dissipation unit, so that the heat exchange fluid in the flow channel 3 can be circulated.

[0098] Preferably, such as Figure 2As shown, the second base 2 also includes two baffles 26. When the body 24 and the two connectors 25 of the first base 1 are connected to the body 24 and the two connectors 25 of the second base 2, the two baffles 26 can be used to shield the ends of the two connectors 25 away from the body 24, thereby blocking the end area of ​​the heat dissipation unit. The baffles 26 can be welded to the connectors 25 by welding. The two connectors 25 of the first base 1 are arranged along a plane and are respectively provided with a liquid inlet 13 and a liquid outlet 14.

[0099] Figure 8 This is a schematic diagram of the heat dissipation component in this embodiment. Figure 9 This is an exploded view of the heat dissipation component in this embodiment. Figure 10 and Figure 11 This is an exploded schematic diagram of the signal transmission device in this embodiment. Figure 8 and Figure 9 Pipeline 5 was not shown in the image.

[0100] In some implementations, such as Figures 8-11 As shown, the heat dissipation unit in the above embodiment can be applied to a heat dissipation assembly, which further includes two pipes 5 and a housing 6. The housing 6 has a first window 64. The two pipes 5 are respectively connected to the liquid inlet 13 and the liquid outlet 14, and the housing 6 covers at least part of the heat dissipation unit, with the heat-conducting surface 12 exposed to the first window 64.

[0101] In summary, the heat dissipation assembly in this embodiment has a first groove 11 and a heat-conducting surface 12 on the first base 1, and a second groove 21 on the second base 2 facing the opposite direction to the first groove 11. When the first groove 11 and the second groove 21 are aligned, a flow channel 3 can be formed. This allows the first guide channel 31 and the second guide channel 32 to communicate with each other, enabling the heat exchange fluid to flow alternately through the first base 1 and the second base 2 in the extension direction of the flow channel 3. This reduces the thickness of the first base 1 and its space occupation. Simultaneously, by partially opposing the first guide channel 31 and the second guide channel 32, and fixing the first base 1 and the second base 2 together, the first guide channel 31 and the second guide channel 32 can be interconnected. This eliminates the need for a separate partition for the flow channel 3 in the heat dissipation unit, simplifying the structure and installation process of the heat dissipation unit. Furthermore, the shell 6 can be used to protect the heat dissipation unit from compression and impact.

[0102] In some implementations, such as Figures 8-11As shown, both the first base 1 and the second base 2 include a body 24 and two connecting bodies 25. The two connecting bodies 25 are connected to the body 24, and a first guide channel 31 or a second guide channel 32 is disposed on the body 24. The second base 2 is a heat-conducting plate, and the second base 2 includes multiple second recessed areas 22. The multiple second recessed areas 22 are recessed in a direction away from the first base 1 and form multiple second guide channels 32 and two third guide channels 33. One end of the third guide channel 33 communicates with the second guide channel 32, and the other end forms a liquid outlet 14 or a liquid inlet 13. The shell 6 includes a first shell 61, a second shell 62, and a seat 63. The seat 63 has a relief groove 631. The second base 2 is disposed on the seat 63, and the relief groove 631 avoids the second recessed areas 22. The first shell 61 has a first window 64. The second shell 62 abuts against the seat 63 and is joined with the first shell 61 to cover the seat 63 and the body 24.

[0103] Specifically, the first housing 61 and the second housing 62 are snapped together, forming two third windows. The first base 1 and two connecting bodies 25 are correspondingly arranged with the two connecting bodies 25 of the second base 2. The two pairs of connecting bodies 25 pass through the two third windows and extend to the same side of the housing 6, thereby connecting to the two pipes 5. The pipes 5 are used to introduce or export the heat exchange fluid into or out of the flow channel 3. In this embodiment, the seat 63 is used to support the heat dissipation unit, so that the heat dissipation unit is stably fixed between the first housing 61 and the second housing 62. In addition, the clearance groove 631 can also avoid the second recessed area 22, so that the second base 2 fits snugly against the seat 63.

[0104] In some implementations, such as Figures 8-11 As shown, the heat dissipation component in the above embodiment can be applied to a signal transmission device. The signal transmission device in this embodiment includes a first connecting part 7, a second connecting part 8, and a mounting part 9. The second connecting part 8 includes a heat source device 81. The mounting part 9 includes a mounting cavity 93. The mounting cavity 93 has a connection port 91 and a plurality of second windows 92 corresponding to a plurality of first windows 64.

[0105] The heat-conducting surface 12 passes through the first window 64 and the second window 92 into the mounting cavity 93. When the second connecting part 8 enters the mounting cavity 93 through the connecting port 91 and connects with the first connecting part 7, the heat source device 81 can come into contact with the heat-conducting surface 12. Thus, the heat on the heat source device 81 is conducted to the heat-conducting surface 12.

[0106] In summary, the signal transmission device in this embodiment has a first groove 11 and a heat-conducting surface 12 for heat conduction on the first base 1 of the heat dissipation unit, and a second groove 21 facing the opposite direction to the first groove 11 on the second base 2. When the first groove 11 and the second groove 21 are aligned, a flow channel 3 can be formed. This allows the first guide channel 31 and the second guide channel 32 to be interconnected, enabling the heat exchange fluid to flow alternately through the first base 1 and the second base 2 in the extension direction of the flow channel 3. This reduces the thickness of the first base 1 and its space occupation. Simultaneously, by partially aligning the first guide channel 31 and the second guide channel 32, and fixing the first base 1 and the second base 2 together, the first guide channel 31 and the second guide channel 32 can be interconnected. This eliminates the need for a separate partition for the flow channel 3 in the heat dissipation unit, simplifying the structure and installation process of the heat dissipation unit. Furthermore, the shell 6 can be used to protect the heat dissipation unit from compression and impact.

[0107] Optionally, the signal transmission device in this embodiment can be used to transmit optical signals or electrical signals. Taking optical signals as an example, the first connecting part 7 and the second connecting part 8 are communicatively connected to form a high-speed connector. This optical transmission module can be applied in data centers, telecommunications, the Internet of Things, or transportation, among other fields. Figure 11 For example, this signal transmission module includes four optical modules.

[0108] In some implementations, such as Figures 10-11 As shown, the first connecting part 7 includes a circuit board 71 and a socket 72 disposed on the circuit board 71. The mounting part 9 is fixedly connected to the circuit board 71, and the second connecting part 8 is a plug. The plug and the socket 72 can be detached and connected together to communicate with the circuit board 71.

[0109] Specifically, multiple heat dissipation components can be simultaneously mounted on the same circuit board 71, and each heat dissipation component can simultaneously dissipate heat from multiple plugs connected to multiple sockets 72. This makes the structure of the signal transmission device more compact.

[0110] Optionally, the first recessed area 15 has an elastic deformation amount, which allows the bottom surface of the first guide groove 31 to move towards the second base 2 under the pushing of the heat source device 81, thereby ensuring that the heat-conducting surface 12 is stably attached to the heat source device 81. At the same time, after the heat source device 81 moves away from the heat-conducting surface 12, the heat-conducting surface 12 can also be reset in time.

[0111] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat dissipation unit, characterized in that, The heat dissipation unit includes: A first base includes a plurality of spaced-apart first guide grooves, each first guide groove having mutually opposing first grooves and heat-conducting surfaces; and The second base includes a plurality of second guide grooves spaced apart, each second guide groove having a second groove facing the opposite direction to the first groove. The first base and the second base are fixedly connected, and the first groove and the second groove form a flow channel, the flow channel having an inlet and an outlet. In the extension direction of the flow channel, each of the first guide channels and each of the second guide channels are arranged alternately in sequence, and adjacent first guide channels and second guide channels are partially arranged opposite to each other and connected.

2. The heat dissipation unit according to claim 1, characterized in that, The first base is a heat-conducting plate, and the first base includes a plurality of first recessed areas. The plurality of first recessed areas are recessed in a direction away from the second base, and the first groove and the heat-conducting surface are respectively formed on both sides of the first recessed area.

3. The heat dissipation unit according to claim 2, characterized in that, Each of the first guide channels is arranged in parallel and perpendicular to the second guide channel; In the extending direction of the second guide channel, a plurality of first guide channels are arranged at intervals, and each second guide channel is connected to the end of two adjacent first guide channels on the same side; Multiple second guide channels are disposed on both sides of multiple first guide channels, and the two ends of the second guide channels are respectively connected to the ends of two first guide channels.

4. The heat dissipation unit according to claim 2, characterized in that, The second base is the heat-conducting plate, and the second base includes a plurality of second recessed areas, which are recessed in a direction away from the first base to form a plurality of second flow channels.

5. The heat dissipation unit according to claim 2, characterized in that, The heat dissipation unit also includes: Multiple heat exchange units are provided in multiple first guide channels, and each heat exchange unit has multiple heat exchange channels. The extending direction of the heat exchange channels is consistent with the extending direction of the first guide channels.

6. The heat dissipation unit according to claim 5, characterized in that, In the extending direction of the first guide channel, the heat exchange channel is spaced apart from the two ends of the corresponding first guide channel, and the two ends of the heat exchange channel are connected to the second groove.

7. The heat dissipation unit according to claim 5, characterized in that, The first base also includes a first connection region, and the first recessed region is recessed by the first connection region; The second base includes a second connecting region, and the second guide groove is recessed by the second connecting region; The first base and the second base are fixedly connected, the first connection area and the second connection area are partially in contact, and one side of the heat exchange part is in contact with the bottom of the first guide channel, and the other side is in contact with the second connection area.

8. The heat dissipation unit according to any one of claims 5-7, characterized in that, Both the first base and the second base include a body and two connecting bodies, the two connecting bodies being connected to the body, and the first or second flow guide groove being disposed on the body; The second base also includes two third guide channels, which are respectively disposed on the two connecting bodies. One end of the third guide channel is connected to the heat exchange part, and the other end forms the liquid outlet or the liquid inlet.

9. A heat dissipation component, characterized in that, The heat dissipation component includes: Two pipelines; The shell portion has a first window; and A heat dissipation unit includes a first base and a second base. The first base includes a plurality of first guide grooves spaced apart, each first guide groove having a first groove and a heat-conducting surface facing away from each other. The second base includes a plurality of second guide grooves spaced apart, each second guide groove having a second groove facing opposite to the first groove. The first base and the second base are fixedly connected. The first groove and the second groove form a flow channel. The flow channel has a liquid inlet and a liquid outlet. Two pipes are respectively connected to the liquid inlet and the liquid outlet. The shell covers at least part of the heat dissipation unit, and the heat-conducting surface is exposed to the first window. In the extension direction of the flow channel, each of the first guide channels and each of the second guide channels are arranged alternately in sequence, and the first guide channel and the adjacent second guide channel are partially arranged opposite to each other and connected.

10. The heat dissipation assembly according to claim 9, characterized in that, Both the first base and the second base include a body and two connecting bodies, the two connecting bodies being connected to the body, and the first or second flow guide groove being disposed on the body; The second base is a heat-conducting plate. The second base includes a plurality of second recessed areas. The plurality of second recessed areas are recessed in a direction away from the first base and form a plurality of second guide channels and two third guide channels. One end of the third guide channel is connected to the second guide channel, and the other end forms the liquid outlet or the liquid inlet. The shell includes a first shell, a second shell, and a base. The base has a clearance groove. The second base is disposed on the base, and the clearance groove avoids the second recessed area. The first shell has a first window. The second shell abuts against the base and is joined with the first shell to cover the base and the main body.

11. A signal transmission device, characterized in that, The signal transmission device includes: First connecting part; The second connection part includes a heat source device; The mounting section includes a mounting cavity having a connection port and a second window; and According to any one of claims 9-10, in the heat dissipation assembly, the heat-conducting surface passes through the first window and the second window into the mounting cavity, the second connecting portion enters the mounting cavity through the connecting port and connects with the first connecting portion, and the heat source device abuts against the heat-conducting surface.

12. The signal transmission device according to claim 11, characterized in that, The first connecting part includes a circuit board and a socket disposed on the circuit board; The mounting part is fixedly connected to the circuit board, and the second connecting part is a plug. The plug and the socket can be detachably plugged into each other and connected to the circuit board for communication.

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