Ultrathin vapor chamber with micro-channel structure
By designing microchannel structures and sealing components in the ultrathin vapor chamber, the problem of uneven heat dissipation is solved, achieving more efficient heat conduction and convenient installation and disassembly, thus improving the heat dissipation performance of the ultrathin vapor chamber.
Patent Information
- Application Number
- CN202520443683.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing ultra-thin vapor chambers have poor heat dissipation uniformity, resulting in low heat conduction efficiency and affecting heat dissipation efficiency.
A microchannel structure was designed, including micro-flow channels, manifolds, and sealing components. The manifolds allow the heat sink to flow evenly within the micro-flow channels, while the positioning grooves and fastening bolts facilitate installation and disassembly.
It improves the uniformity of heat conduction of the heat sink, enhances the thermal conductivity of the ultra-thin heat spreader, and simplifies the installation and cleaning process.
Smart Images

Figure CN223899550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrathin heat exchange plates, specifically an ultrathin heat exchange plate with a microchannel structure. Background Technology
[0002] Ultrathin vapor chambers are highly efficient thermal management components, primarily used in the heat dissipation of electronic devices. They are designed to provide a thin and lightweight heat dissipation solution that can effectively distribute heat within a limited space.
[0003] However, current ultra-thin vapor chambers still have some shortcomings. For example, the heat dissipation uniformity of existing ultra-thin vapor chambers is poor, resulting in low heat conduction efficiency of the heat dissipation fluid when it flows and dissipates heat. This interferes with the heat dissipation efficiency of the vapor chamber and thus has certain defects in use.
[0004] Therefore, there is an urgent need to improve this shortcoming. This utility model is to study and improve the existing structure to provide an ultrathin heat spreader with a microchannel structure. Utility Model Content
[0005] The purpose of this invention is to provide an ultrathin heat spreader with a microchannel structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an ultra-thin temperature equalizer with a microchannel structure, comprising a support plate and a sealing assembly, wherein a flow-diverting assembly is provided on the top inner surface of the support plate, and positioning grooves are symmetrically provided on the top of the support plate, and threaded holes are symmetrically provided on the top of the support plate, and the sealing assembly is movably installed on the top of the support plate.
[0007] Furthermore, the diversion component includes a micro-flow channel, a cleaning groove, and a confluence groove. The top of the micro-flow channel is provided with a cleaning groove, and the end of the micro-flow channel is provided with a confluence groove. Moreover, the confluence grooves are equally spaced on the top of the support plate.
[0008] Furthermore, the number of micro-channels is two sets, and the two sets of micro-channels are symmetrically arranged with the vertical line of the confluence channel as the axis of symmetry, and the two sets of micro-channels are connected through the confluence channel.
[0009] Furthermore, the sealing assembly includes a sealing cap, a positioning post, a bearing groove, and fastening bolts. The bottom of the sealing cap is symmetrically fixedly installed with positioning posts, and the top of the sealing cap is symmetrically provided with bearing grooves. Fastening bolts are movably connected inside the bearing grooves.
[0010] Furthermore, the external dimensions of the positioning post perfectly match the internal dimensions of the positioning groove, and the positioning post and the supporting plate form a locking structure through the positioning groove.
[0011] Furthermore, the number of positioning posts installed is exactly the same as the number of positioning slots opened, and the installation spacing of the positioning posts is exactly the same as the opening spacing of the positioning slots.
[0012] Furthermore, the internal dimensions of the bearing groove perfectly match the external dimensions of the upper end of the fastening bolt, and the fastening bolt forms a locking structure with the sealing cover through the bearing groove.
[0013] This invention provides an ultrathin temperature-dissipating plate with a microchannel structure, which has the following advantages:
[0014] 1. This utility model, through the design of the confluence channel, allows the heat dissipation fluid to automatically converge inside the confluence channel when flowing inside the micro-channel. This enables the heat carried by the heat dissipation fluid to be more evenly transferred to the heat dissipation fluid flowing in other micro-channels, thereby avoiding the situation where uneven heating of the ultra-thin heat spreader reduces the heat conduction effect of the heat dissipation fluid flowing in the micro-channel area. At the same time, the cooperation between the micro-channel and the confluence channel allows the heat dissipation fluid to flow better inside the ultra-thin heat spreader for heat conduction.
[0015] 2. This utility model, through the positioning post and positioning groove, makes it easy for workers to quickly position and install the sealing cover onto the top of the support plate. At this time, through the cooperation of the threaded hole and the support groove, workers can quickly complete the fixing work between the sealing cover and the support plate when turning the fastening bolt. This provides convenience for workers to disassemble and install the ultra-thin heat spreader for deep cleaning. Furthermore, through the setting of the support groove, the fastening bolt can be placed in the support groove after installation, thus providing convenience for workers to install and use the ultra-thin heat spreader in the future. Attached Figure Description
[0016] Figure 1 This is a frontal three-dimensional structural diagram of an ultrathin heat spreader with a microchannel structure according to the present invention;
[0017] Figure 2 This is a frontal, split, three-dimensional structural diagram of an ultrathin heat spreader with a microchannel structure according to this utility model.
[0018] Figure 3 This utility model relates to an ultrathin heat spreader with a microchannel structure. Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0019] In the diagram: 1. Support plate; 2. Diverting assembly; 21. Micro-guided channel; 22. Cleaning groove; 23. Merging groove; 3. Positioning groove; 4. Threaded hole; 5. Sealing assembly; 51. Sealing cap; 52. Positioning post; 53. Supporting groove; 54. Fastening bolt. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] like Figures 1-3 As shown, an ultrathin heat spreader with a microchannel structure includes a support plate 1 and a sealing assembly 5. A diversion assembly 2 is provided on the top inner surface of the support plate 1. The diversion assembly 2 includes a micro-flow channel 21, a cleaning groove 22, and a confluence groove 23. The top of the micro-flow channel 21 is provided with a cleaning groove 22, and the end of the micro-flow channel 21 is provided with a confluence groove 23. There are two sets of micro-flow channels 21. The two sets of micro-flow channels 21 are symmetrically arranged with the vertical line of the confluence groove 23 as the axis of symmetry. The two sets of micro-flow channels 21 are connected through the confluence groove 23. The confluence groove 23 is equally spaced on the top of the support plate 1. The top of the support plate 1 is symmetrically provided with positioning grooves 3 and threaded holes 4. The sealing assembly 5 is movably installed on the top of the support plate 1.
[0022] like Figures 1-3 As shown, a diversion component 2 is provided on the top inner surface of the support plate 1, and positioning grooves 3 and threaded holes 4 are symmetrically provided on the top of the support plate 1. A sealing component 5 is movably installed on the top of the support plate 1. The sealing component 5 includes a sealing cover 51, a positioning post 52, a support groove 53, and fastening bolts 54. The positioning post 52 is symmetrically fixedly installed at the bottom of the sealing cover 51. The external dimensions of the positioning post 52 are completely matched with the internal dimensions of the positioning groove 3. The positioning post 52 and the support plate 1 form a locking structure through the positioning groove 3. By setting the positioning post 52 and the support plate 1 into a locking structure, the sealing cover 51 can be quickly and easily installed by the operator. The positioning pins 52 are installed on the top of the support plate 1. The number of positioning pins 52 installed is exactly the same as the number of positioning grooves 3, and the installation spacing of the positioning pins 52 is exactly the same as the opening spacing of the positioning grooves 3. The top of the sealing cover 51 is symmetrically provided with support grooves 53, and the inside of the support grooves 53 is movably connected with fastening bolts 54. The internal dimensions of the support grooves 53 are completely matched with the external dimensions of the upper end of the fastening bolts 54. The fastening bolts 54 and the sealing cover 51 form a locking structure through the support grooves 53. By setting the fastening bolts 54 and the sealing cover 51 into a locking structure, the fastening bolts 54 can be perfectly inserted into the inside of the support grooves 53 after installation.
[0023] In summary, this ultrathin heat spreader with a microchannel structure is first based on Figures 1 to 3As shown in the diagram, after the staff has cleaned the inside of the diversion component 2, they grasp the sealing cover 51 and insert the positioning pin 52 into the positioning groove 3 to complete the initial positioning and installation of the sealing cover 51. Then, the staff grasps the fastening bolt 54 and passes it through the bearing groove 53 and rotates it into the threaded hole 4 to complete the quick fixing of the sealing cover 51. After the fastening bolt 54 has been rotated, it automatically sinks into the bearing groove 53, thus completing the overall cleaning of the ultra-thin heat spreader. When the ultra-thin heat spreader is in use, the heat dissipation fluid automatically diverts inside the micro-flow channel 21 and the cleaning groove 22 and automatically converges inside the confluence groove 23 to ensure that the heat conduction effect of the ultra-thin heat spreader is better and more stable.
[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A microchannel structure ultrathin temperature distribution plate, comprising a support plate (1) and a sealing assembly (5), characterized in that, The top inner surface of the support plate (1) is provided with a diversion component (2), and the top of the support plate (1) is symmetrically provided with positioning grooves (3), and the top of the support plate (1) is symmetrically provided with threaded holes (4). The sealing component (5) is movably installed on the top of the support plate (1).
2. The ultrathin heat spreader with a microchannel structure according to claim 1, characterized in that, The diversion component (2) includes a micro-flow channel (21), a cleaning groove (22) and a confluence groove (23). The top of the micro-flow channel (21) is provided with a cleaning groove (22), and the end of the micro-flow channel (21) is provided with a confluence groove (23). The confluence grooves (23) are evenly spaced on the top of the support plate (1).
3. The ultrathin heat spreader with a microchannel structure according to claim 2, characterized in that, The number of micro-guide channels (21) is two sets. The two sets of micro-guide channels (21) are symmetrically arranged with the vertical line of the confluence channel (23) as the axis of symmetry. The two sets of micro-guide channels (21) are connected through the confluence channel (23).
4. The ultrathin heat spreader with a microchannel structure according to claim 1, characterized in that, The sealing assembly (5) includes a sealing cover (51), a positioning post (52), a bearing groove (53), and a fastening bolt (54). The bottom of the sealing cover (51) is symmetrically fixedly equipped with the positioning post (52), and the top of the sealing cover (51) is symmetrically provided with the bearing groove (53). The bearing groove (53) is movably connected to the inside of the bearing bolt (54).
5. The ultrathin heat spreader with a microchannel structure according to claim 4, characterized in that, The external dimensions of the positioning post (52) are completely matched with the internal dimensions of the positioning groove (3), and the positioning post (52) and the bearing plate (1) form a locking structure through the positioning groove (3).
6. The ultrathin heat spreader with a microchannel structure according to claim 4, characterized in that, The number of the positioning posts (52) installed is exactly the same as the number of the positioning slots (3), and the installation spacing of the positioning posts (52) is exactly the same as the opening spacing of the positioning slots (3).
7. The ultrathin heat spreader with a microchannel structure according to claim 4, characterized in that, The internal dimensions of the bearing groove (53) perfectly match the external dimensions of the upper end of the fastening bolt (54). Furthermore, the fastening bolt (54) forms a locking structure with the sealing cover (51) through the bearing groove (53).