Composite capillary wick uniform temperature plate

Abstract

This application provides a composite capillary core heat exchanger plate, relating to the field of heat exchange device technology. It includes an upper plate and a lower plate disposed below it. A heat dissipation device is disposed between the upper and lower plates, and a stabilizing device is disposed on the lower plate. The heat dissipation device includes a heat dissipation interlayer fixedly connected to the lower plate. A groove is formed in the heat dissipation interlayer, and an insulating plate is fixedly connected to the inner wall of the groove. A transport pipe is slidably connected to the insulating plate. This application, through the heat dissipation device and the change in the internal channel of the movable steering component controller, automatically increases the heat dissipation area while ensuring that the variation range of internal stress remains within a controllable range, thus maintaining the structural stability of the heat exchanger plate.

Description

Technical Field

[0001] This invention relates to the field of heat exchange devices, and more specifically, to a composite capillary core heat exchanger. Background Technology

[0002] In the field of heat dissipation technology, especially for the heat dissipation needs of high-performance electronic components, composite capillary vapor chambers have received widespread attention in recent years as an efficient thermal management solution. However, in practical applications, this technology faces two major challenges: First, it is difficult to effectively prevent structural deformation. Due to the high heat density and miniaturization trend of electronic components, vapor chambers need to withstand extreme temperature changes and thermal stress. Traditional vapor chamber structures often struggle to maintain their shape stability over long periods, thus affecting heat dissipation performance. Second, there is the issue of stable installation on heat sources. Vapor chambers need to be tightly fitted to heat sources to achieve efficient heat conduction, but different heat sources have varying shapes, sizes, and surface characteristics. Ensuring stable installation of vapor chambers on different heat sources has become a pressing technical challenge.

[0003] For example, the specification of the "temperature distribution plate" disclosed in Chinese invention patent CN111750716B states that how to securely fix the plate to the heat source while ensuring the lower plate adheres to the heat source and preventing deformation of the temperature distribution plate has always been a problem that the industry urgently needs to solve. In addition, how to quickly and conveniently fix the finished temperature distribution plate to the heat source; the above patent can corroborate the defects of the existing technology.

[0004] Therefore, we made improvements and proposed a composite capillary core temperature equalizer. Summary of the Invention

[0005] The purpose of this invention is to improve upon the existing problems of heat spreaders being prone to deformation and difficult to place close to heat sources.

[0006] To achieve the above-mentioned objectives, the present invention provides a composite capillary core temperature equalizer to improve the aforementioned problems.

[0007] The application is as follows:

[0008] It includes an upper plate and a lower plate disposed below it. A heat dissipation device is provided between the upper plate and the lower plate. A stabilizing device is provided on the lower plate. The heat dissipation device includes a heat dissipation interlayer fixedly connected to the lower plate. A groove is formed on the heat dissipation interlayer. An isolation plate is fixedly connected to the inner wall of the groove. A transport pipe is slidably connected to the isolation plate. A magnetic sliding table is fixedly connected to the other end of the transport pipe away from the isolation plate.

[0009] As a preferred technical solution of this application, the heat dissipation device further includes an extension plate fixedly connected to the outer wall of one side of the magnetic sliding table. The extension plate is connected to the side of the extension plate near the groove, and the two sides of the extension plate extend to the two ends of the groove without contacting it.

[0010] As a preferred technical solution of this application, the heat dissipation device further includes a T-shaped guide ring and a straight guide ring disposed in the heat dissipation interlayer.

[0011] As a preferred technical solution of this application, the heat dissipation device further includes several evenly distributed grooves and evaporation grooves formed on the heat dissipation interlayer.

[0012] As a preferred technical solution of this application, the heat dissipation interlayer further includes a reflux groove formed on a plane that is not on the same plane as the equal distribution groove and the evaporation groove. Each reflux groove includes a straight groove and three circular grooves arranged at equal intervals thereon. The circular grooves partially penetrate the interior of the heat dissipation interlayer and are adjacent to the equal distribution groove and the evaporation groove.

[0013] As a preferred technical solution of this application, the heat dissipation device further includes several telescopic rods fixed in the reflux groove. A spring is fixedly connected to the reflux groove and disposed on the outer ring of the telescopic rod. The top of the telescopic rod is fixedly connected to a T-shaped guide ring and a straight guide ring respectively. The end of the spring away from the reflux groove is fixedly connected to the side of the T-shaped guide ring and the straight guide ring without the guide groove. Several capillary lines are fixedly connected to the evaporation groove.

[0014] As a preferred technical solution of this application, the stabilizing device includes a slot formed on the lower plate. It should be noted that the slot is an arc-shaped structure used to match the movement trajectory of the hinge rod. A contact groove is formed on the lower plate, and two hinge rods are hinged on the lower plate. Two crossbars are hinged to the ends of the hinge rods.

[0015] As a preferred technical solution of this application, the stabilizing device further includes two clamps fixedly connected to the crossbar. The clamps are provided with rectangular grooves, and irregular plates are slidably connected in the rectangular grooves. A fixing post is fixedly connected to the bottom of the irregular plate, and a spring is hinged to the fixing post.

[0016] As a preferred technical solution of this application, the stabilizing device further includes a rotating part rotatably connected to the inner wall of the clamping plate, one end of the rotating part is fixedly connected to a limiting plate, and the other end of the rotating part is fixedly connected to a force-bearing rod.

[0017] As a preferred technical solution of this application, the stabilizing device further includes a plurality of heat-conducting columns fixedly connected in the contact groove, the heat-conducting columns being in contact with the bottom surface of the irregular plate, and a limiting piece being fixedly connected to the side of the heat-conducting columns away from the contact groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the scheme of this application:

[0020] 1. In order to solve the problem of internal stress in the prior art, this application achieves automatic increase of heat dissipation area by setting up a heat dissipation device and controlling the internal channel of the movable steering component, while ensuring that the range of internal stress variation is always within a controllable range, thus maintaining the structural stability of the heat spreader.

[0021] 2. In order to solve the problem of stress generation in the prior art, this application realizes the working principle of the heat dissipation device through the heat dissipation liquid in its heat spreader. When the state changes, the volume changes and the way the internal spaces are connected is changed, so that the stress is converted into driving force and thus changes the connection path, thereby allowing the heat dissipation liquid to condense better and generate a circulation effect.

[0022] 3. By using the set heat dissipation device, the movement of its magnetic sliding table drives the surrounding guide ring to rotate. At the same time, by using the notch and channel spacing on the guide ring, the opening and closing of the valve is controlled. The evaporation area is expanded by the deflection, thereby improving the heat dissipation effect of the heat spreader and solving the problem that the heat dissipation effect of the heat spreader cannot be adjusted in the prior art.

[0023] 4. By using a stabilizing device and manually adjusting it during external installation, the heat source at the bottom can be positioned and limited while the main body of the heat spreader is installed, thus solving the problem of unstable placement on the heat source for cooling in existing technologies.

[0024] 5. By using a stabilizing device to move the hinge rod inward, the heat source is positioned while the spring is unfolded to ensure close contact with the heat-conducting column, thus solving the problem that existing technologies cannot provide additional heat dissipation.

[0025] 6. By using a stabilizing device, the deformation of the spring itself caused by the unfolding of the spring during the above actions drives the force rod, thereby fixing the upper part of the heat exchange plate through the force rod, preventing the upper plate from deforming and causing damage, thus solving the problem in the prior art. Attached Figure Description

[0026] Figure 1 A front view of a composite capillary core temperature equalizer provided in this application;

[0027] Figure 2 A schematic diagram of the hinge rod structure of a composite capillary core temperature equalizer provided in this application;

[0028] Figure 3 A schematic diagram of the heat dissipation sandwich structure of a composite capillary core heat exchanger provided in this application;

[0029] Figure 4 One of the schematic diagrams of the internal structure of the heat dissipation interlayer of a composite capillary heat exchanger provided in this application;

[0030] Figure 5 A second schematic diagram of the internal structure of the heat dissipation interlayer of a composite capillary heat exchanger provided in this application;

[0031] Figure 6 The third schematic diagram of the internal structure of the heat dissipation interlayer of a composite capillary heat exchanger provided in this application;

[0032] Figure 7 A schematic diagram of the telescopic rod structure of a composite capillary core temperature equalizer provided in this application;

[0033] Figure 8 A schematic diagram of the capillary structure of a composite capillary core heat spreader provided in this application;

[0034] Figure 9 A schematic diagram of the extension plate structure of a composite capillary core temperature equalizer provided in this application;

[0035] Figure 10 A schematic diagram of the clamping structure of a composite capillary core temperature equalizer provided in this application;

[0036] Figure 11 A schematic diagram of the internal structure of the clamping plate of a composite capillary core temperature equalizer provided in this application.

[0037] The image shows:

[0038] 1. On the board;

[0039] 2. Lower board;

[0040] 3. Heat dissipation device; 301. Heat dissipation jacket; 302. Groove; 303. Insulation plate; 304. Transport pipe; 305. Magnetic sliding table; 3051. Extension plate; 306. T-shaped guide ring; 307. Straight guide ring; 308. Distribution groove; 309. Evaporation tank; 310. Reflux tank; 311. Telescopic rod; 312. Spring; 313. Capillary groove;

[0041] 4. Stabilizing device; 401. Slot; 402. Contact slot; 403. Hinge rod; 404. Crossbar; 405. Clamping plate; 406. Rectangular slot; 407. Irregular plate; 408. Fixing column; 409. Spring piece; 410. Rotating part; 411. Limiting plate; 412. Force-bearing rod; 413. Heat-conducting column; 414. Limiting piece. Detailed Implementation

[0042] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0043] As described in the background section, the vapor chamber needs to withstand extreme temperature changes and thermal stress, and there are issues regarding how to ensure the stable installation of the vapor chamber on different heat sources.

[0044] To address this technical problem, the present invention provides a composite capillary core temperature distribution plate, which is applied to the self-adjustment of the temperature distribution plate and can be easily installed.

[0045] For details, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A composite capillary core temperature distribution plate specifically includes:

[0046] The upper plate 1 and the lower plate 2 located below it are provided with a heat dissipation device 3 between the upper plate 1 and the lower plate 2. The lower plate 2 is provided with a stabilizing device 4. The heat dissipation device 3 includes a heat dissipation interlayer 301 fixedly connected to the lower plate 2. It should be noted that the area between the upper plate 1 and the lower plate 2, except for the heat dissipation interlayer 301, is provided with capillary grooves 313 to achieve heat dissipation. The heat dissipation interlayer 301 has a groove 302. An isolation plate 303 is fixedly connected to the inner wall of the groove 302. A transport pipe 304 is slidably connected to the isolation plate 303. The other end of the transport pipe 304 away from the isolation plate 303 is fixedly connected to a magnetic sliding table 305.

[0047] The present invention provides a composite capillary core heat exchange plate, which uses a sliding magnetic sliding stage 305 to divide the cavity portion of the heat dissipation jacket 301 located below the insulating plate 303 into two ends. By switching the position of the magnetic sliding stage 305 in the cavity, the heat dissipation effect can be changed, thereby realizing the self-adjustment of the heat dissipation effect.

[0048] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0049] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 A composite capillary core heat dissipation plate, the heat dissipation device 3 further includes an extension plate 3051 fixedly connected to one side of the outer wall of the magnetic sliding table 305. The extension plate 3051 is connected to the side of the extension plate 3051 near the groove 302, and the two sides of the extension plate 3051 extend to the two ends of the groove 302 without contacting it. It should be added that two limiting strips for limiting the extension plate 3051 are fixedly connected in the groove 302. Figure 5 This is shown in the enlarged partial image.

[0052] The magnetic sliding stage 305 slides in the groove 302, and the orientation of the two guide rings is changed by magnetic attraction, so that the guide rings pass through the internal guide groove and change the guide path of the evaporating liquid.

[0053] The heat dissipation device 3 also includes a T-shaped guide ring 306 and a straight guide ring 307 disposed in the heat dissipation interlayer 301. It should be noted that one side of the T-shaped guide ring 306 and the straight guide ring 307 is provided with magnetic material, allowing them to change direction via magnetic force. Only the T-shaped guide ring 306 and the straight guide ring 307 located at the bottom relative to the insulating plate 303, near the magnetic sliding table 305, have connecting holes. Furthermore, the diameter of the connecting hole in the T-shaped guide ring 306 is larger than the cross-sectional width of the magnetic sliding table 305. Figure 9 Visible in the middle.

[0054] The heat dissipation device 3 also includes several evenly distributed grooves 308 and evaporation grooves 309 formed on the heat dissipation jacket 301.

[0055] The equalization tank 308 is used to switch the connectivity effect of the additional evaporation tank 309.

[0056] Example 2 further optimizes the composite capillary core heat spreader provided in Example 1, specifically, as follows: Figure 1 , Figure 2 , Figure 10 and Figure 11As shown, the heat dissipation interlayer 301 also includes a return channel 310 formed on a plane that is not on the same plane as the equal distribution channel 308 and the evaporation channel 309. A return channel 310 includes a straight channel and three circular channels arranged at equal intervals thereon. The circular channels partially penetrate the interior of the heat dissipation interlayer 301 and are in contact with the equal distribution channel 308 and the evaporation channel 309.

[0057] By distinguishing between the evaporation tank 309 and the reflux tank 310, the volume change caused by evaporation in the evaporation tank 309 is converted into power to allow the guide ring to act as a valve to switch the connection between the two tanks.

[0058] Furthermore, such as Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, the heat dissipation device 3 also includes several telescopic rods 311 fixed in the reflux groove 310. A spring 312 is fixedly connected to the reflux groove 310 and is set on the outer ring of the telescopic rod 311. The top of the telescopic rod 311 is fixedly connected to the T-shaped guide ring 306 and the straight guide ring 307 respectively. The end of the spring 312 away from the reflux groove 310 is fixedly connected to the side of the T-shaped guide ring 306 and the straight guide ring 307 without the guide groove. Several capillary lines 313 are fixedly connected to the evaporation tank 309.

[0059] Spring 312 is a torsion spring used as a pressure standard generator. The structural characteristics of spring 312 are also used to reset the rotated guide ring, so that the guide ring can return to its initial position.

[0060] Example 3 further optimizes the composite capillary core heat spreader provided in Example 1 or 2, specifically, as follows: Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, the stabilizing device 4 includes a slot 401 formed on the lower plate 2. It should be noted that the slot 401 has an arc-shaped structure to accommodate the movement trajectory of the hinge rod 403. A contact groove 402 is formed on the lower plate 2, and two hinge rods 403 are hinged on the lower plate 2. Two crossbars 404 are hinged to the ends of the hinge rods 403.

[0061] The two hinge rods 403 are engaged after the movement is completed by the slot 401. It should be noted that the slot 401 has a limiting structure set by a spring, but since this structure is an existing structure, it will not be disclosed.

[0062] Furthermore, such as Figure 1 , Figure 2 , Figure 10 and Figure 11As shown, the stabilizing device 4 also includes two clamping plates 405 fixedly connected to the crossbar 404. A rectangular groove 406 is provided on the clamping plate 405. A shaped plate 407 is slidably connected in the rectangular groove 406. A fixing post 408 is fixedly connected to the bottom of the shaped plate 407. A spring piece 409 is hinged on the fixing post 408.

[0063] By restricting the movement trajectory of several irregularly shaped plates 407 by clamping plates 405, the irregularly shaped plates 407 can generate the effect of pulling and covering the heat sink and the effect of lifting, positioning and releasing by changing in two directions during the movement.

[0064] Furthermore, such as Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, the stabilizing device 4 also includes a rotating part 410 rotatably connected to the inner wall of the clamping plate 405. One end of the rotating part 410 is fixedly connected to a limiting plate 411, and the other end of the rotating part 410 is fixedly connected to a force-bearing rod 412.

[0065] The pressure generated by the spring 409 is transferred through the assembly to fix the upper plate 1 and the lower plate 2, preventing the two plates from springing apart.

[0066] The stabilizing device 4 also includes a number of heat-conducting pillars 413 fixedly connected in the contact groove 402. The heat-conducting pillars 413 are in contact with the bottom surface of the irregular plate 407, and the side of the heat-conducting pillars 413 away from the contact groove 402 is fixedly connected to a limiting piece 414.

[0067] The process of using the composite capillary core temperature equalizer provided by this invention is as follows:

[0068] 1. During the installation of the heat exchange plate, it needs to be installed above the heat source. The two hinge rods 403 are pushed into the slot 401 by manual means and the two hinge rods 403 are engaged. During this process, the hinge rods 403 rotate independently and drive the crossbars 404 to move closer to the lower plate 2. The two crossbars 404 eventually contact the lower plate 2. At the same time, the position of the heat conduction column 413 is fixed. Under the action of the sliding block in the rectangular groove 406 and the irregular plate 407 on the clamping plate 405, the irregular plate 407 and the heat conduction column 413 move relative to each other. That is, the heat conduction column 413 moves closer to the top surface of the inclined surface of the irregular plate 407, while the irregular plate 407 moves inward away from the limiting piece 414.

[0069] 2. As the top of the irregular plate 407 contacts the heat-conducting column 413, the irregular plate 407 slides downward and contacts or limits the heat source below, which assists in the installation of the heat spreader. At the same time, the irregular plate 407 moves inward and downward. At this time, the fixing column 408 above it pulls the spring piece 409 to adhere to the heat-conducting column 413 and gradually tightens it. Since the spring piece 409 has several holes, it acts as a heat dissipation structure and adheres to the heat-conducting column 413 to provide additional heat dissipation. As the spring piece 409 gradually tightens, the central part deforms and pushes the force rod 412 upward. The force rod 412, through the rotating part 410, makes the fixing column 408 adhere to the upper surface of the upper plate 1, making the fit between the upper plate 1 and the lower plate 2 tighter and preventing stress from causing it to spring back.

[0070] 3. It should be added that the interior of the transport pipe 304 is also fixed with capillary grooves 313 to facilitate the return of coolant to the evaporator. Figure 5 It was observed that after the coolant passed through the gap in the magnetic sliding stage 305, it was transported to both sides through the T-shaped guide ring 306. For easier observation, Figure 5 It includes two orientation states of the guide ring, relative to Figure 5 The magnetic sliding stage 305 is in its initial state on the left side, and in its state on the right side after sliding, with the orientation changed. The magnetic sliding stage 305 is initially located at the bottom of the groove 302, and the connecting hole at the bottom is... Figure 9 Because the diameter is larger than the cross-sectional width of the magnetic sliding stage 305, it can connect the gap between the extension plate 3051 and the groove 302. That is, there is evaporating liquid in this space. When the evaporating liquid evaporates rapidly, its volume changes, which in turn pushes the magnetic sliding stage 305 to start moving and eventually stops moving under the action of the limit bar. It contacts the connecting hole at the T-shaped guide ring 306, and the guide ring forms the right side state, connecting the equal distribution groove 308 and the evaporation groove 309 to form a larger evaporation area. At the same time, the rotation of the guide ring blocks the connecting hole at the bottom.

[0071] 4. In the initial state, there is evaporating liquid in the gap between the extension plate 3051 and the groove 302. When it has not been converted into a large amount of gas, the magnetic sliding table 305 does not move. The T-shaped guide ring 306 and the straight guide ring 307 form a heat dissipation area with a similar straight structure. When the heat dissipation gas in the two states reaches a certain level, the air pressure will push the guide ring to move and shorten it through the telescopic rod 311 and the spring 312. At this time, the guide ring will be pressed to the bottom of the circular part of the return groove 310. After the steam enters, the spring 312 will press the guide ring back. At this time, the circular part of the return groove 310 is connected to the strip part and is transported to the groove 302 space at the top of the isolation plate 303 after condensation in the return groove 310. By isolating the two parts, the evaporating liquid can be condensed quickly. Since the return groove 310 is close to both sides, the heat can be conducted out by the heat conduction column 413 more quickly and achieve the effect of external heat dissipation through the additional heat dissipation components.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 mechanical connection, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A composite capillary wick uniform temperature plate, characterized by, It includes an upper plate (1) and a lower plate (2) disposed below it. A heat dissipation device (3) is disposed between the upper plate (1) and the lower plate (2), and a stabilizing device (4) is disposed on the lower plate (2). The heat dissipation device (3) includes a heat dissipation jacket (301) fixedly connected to the lower plate (2). A groove (302) is provided on the heat dissipation jacket (301). An isolation plate (303) is fixedly connected to the inner wall of the groove (302). A transport pipe (304) is slidably connected to the isolation plate (303). A magnetic sliding table (305) is fixedly connected to the other end of the transport pipe (304) away from the isolation plate (303). The heat dissipation device (3) also includes an extension plate (3051) fixedly connected to the outer wall of one side of the magnetic sliding table (305). The heat dissipation device (3) also includes a T-shaped guide ring (306) and a straight guide ring (307) disposed in the heat dissipation interlayer (301). The heat dissipation device (3) also includes several evenly distributed grooves (308) and evaporation grooves (309) formed on the heat dissipation jacket (301). The heat dissipation interlayer (301) also includes a reflux groove (310) that is not on the same plane as the equalization groove (308) and the evaporation groove (309). The heat dissipation device (3) also includes several telescopic rods (311) fixed in the reflux groove (310). A spring (312) is fixedly connected to the reflux groove (310) and set on the outer ring of the telescopic rod (311). The top of the telescopic rod (311) is fixedly connected to a T-shaped guide ring (306) and a straight guide ring (307) respectively. Several capillary lines (313) are fixedly connected to the evaporation groove (309).

2. The composite capillary wick uniform temperature plate according to claim 1, characterized in that, The stabilizing device (4) includes a slot (401) on the lower plate (2), a contact groove (402) on the lower plate (2), two hinge rods (403) hinged on the lower plate (2), and two crossbars (404) hinged to the ends of the hinge rods (403).

3. The composite capillary wick uniform temperature plate according to claim 2, characterized in that, The stabilizing device (4) also includes two clamping plates (405) fixedly connected to the crossbar (404). A rectangular groove (406) is provided on the clamping plate (405). A shaped plate (407) is slidably connected in the rectangular groove (406). A fixing post (408) is fixedly connected to the bottom of the shaped plate (407). A spring piece (409) is hinged on the fixing post (408).

4. The composite capillary wick uniform temperature plate according to claim 3, characterized in that, The stabilizing device (4) further includes a rotating part (410) rotatably connected to the inner wall of the clamp (405). One end of the rotating part (410) is fixedly connected to a limiting plate (411), and the other end of the rotating part (410) is fixedly connected to a force-bearing rod (412).

5. The composite capillary wick isothermal plate according to claim 4, characterized in that, The stabilizing device (4) further includes a plurality of heat-conducting pillars (413) fixedly connected in the contact groove (402), and a limiting piece (414) is fixedly connected to the side of the heat-conducting pillar (413) away from the contact groove (402).

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