Liquid storage structure and heat pipe heat exchange device

Abstract

The application relates to a liquid storage structure and a heat pipe heat exchange device. The liquid storage structure comprises a liquid storage tank and a plurality of liquid blocking plates arranged at the opening of the liquid storage tank along the height direction of the liquid storage tank and spaced apart from each other, so as to block the outflow of liquid working medium in the liquid storage tank through the opening thereof. One end of each liquid blocking plate is provided with a backflow inlet, and the liquid working medium can enter the liquid storage tank through the backflow inlets. At least part of the backflow inlets are distributed in different regions of the periphery of the liquid storage tank. When the liquid storage structure is tilted or overturned, the backflow inlet corresponding to at least one liquid blocking plate can be moved to the upper region of the liquid blocking plate, so as to prevent the liquid working medium located below the backflow inlet of the liquid blocking plate from flowing out of the liquid storage tank through the backflow inlet. The liquid storage structure and the heat pipe heat exchange device provided by the application solve the problem that the heat pipe type phase change heat exchange mode is prone to the problem that the liquid working medium rapidly leaves the evaporation section under the working conditions of acceleration, deceleration and tilting, etc., so that the power element lacks the heat absorption of the liquid working medium and dry burning occurs.

Description

Technical Field

[0001] This application relates to the field of thermal management device technology, and in particular to a liquid storage structure and a heat pipe heat exchange device. Background Technology

[0002] The three-electric systems (battery, motor, and electronic control) on humanoid robots and low-altitude aircraft are the primary targets of thermal management. The core components of the motor are IGBTs or SiC MOSFETs, and the core components of the electronic control system are chips. Therefore, the main heat-generating components of the three-electric systems can be categorized into two main power components: batteries and chips. Among the thermal management technologies for the three-electric systems, the heat pipe phase change heat transfer method (the heat pipe mainly includes an evaporation section and a condensation section; the liquid working fluid in the evaporation section absorbs heat and vaporizes, then enters the condensation section, and releases heat and liquefies, becoming a liquid working fluid that flows back to the evaporation section) has high heat transfer efficiency, small size, and light weight. Furthermore, the thermal resistance of the entire heat transfer chain is relatively low, making it one of the most promising thermal management technologies for the three-electric systems.

[0003] However, humanoid robots and low-altitude aircraft are dynamic machines that often undergo acceleration, deceleration, and tilting. Using an immersion-type (power element immersed in liquid working fluid) heat pipe phase change heat transfer method can easily lead to a large amount of liquid working fluid leaving the evaporation section quickly, causing the power element to dry-burn due to leaving the liquid surface. Summary of the Invention

[0004] Therefore, it is necessary to provide a liquid storage structure and a heat pipe heat exchange device to solve the problem that existing heat pipe phase change heat exchange methods are prone to the liquid working fluid leaving the evaporation section under conditions such as acceleration, deceleration and tilting, which leads to the power element lacking heat absorption by the liquid working fluid and causing dry burning.

[0005] The liquid storage structure provided in this application includes a liquid storage tank and a plurality of baffles spaced at intervals along the height of the liquid storage tank at the opening of the liquid storage tank to prevent the liquid working medium in the liquid storage tank from flowing out through its own opening. Each baffle has a corresponding return inlet at one end, and the liquid working medium in the external space can enter the liquid storage tank in sequence through the surface of each baffle and each return inlet; at least some of the return inlets are distributed in different areas around the liquid storage tank; when the liquid storage structure tilts or flips, the return inlet corresponding to at least one baffle can move to the upper area of ​​the baffle to prevent the liquid working medium located below the return inlet of the baffle from flowing out of the liquid storage tank through the return inlet.

[0006] In one embodiment, any plane at the opening of the liquid storage tank is defined as the opening reference plane, and the orthographic projections of multiple reflux inlets on the opening reference plane are distributed in different areas around the liquid storage tank.

[0007] In one embodiment, the orthographic projections of multiple reflux inlets onto the opening reference plane can be connected to form a closed-loop structure surrounding the periphery of the storage tank.

[0008] In one embodiment, the baffle includes a first baffle and a second baffle. The second baffle is disposed on the side of the first baffle near the bottom wall of the liquid storage tank. The first baffle and the inner wall of the liquid storage tank are spaced apart to form a first reflux port, and the second baffle and the inner wall of the liquid storage tank are spaced apart to form a second reflux port. The first reflux port and the second reflux port are disposed opposite to each other along a first horizontal direction. When the liquid storage structure tilts or flips along one side of the first horizontal direction, the first reflux port can move to the upper region of the first baffle, or the second reflux port can move to the upper region of the second baffle.

[0009] In one embodiment, the baffle further includes a third baffle and a fourth baffle. The third baffle is disposed on the side of the second baffle near the bottom wall of the storage tank, and the fourth baffle is disposed on the side of the third baffle near the bottom wall of the storage tank. The third baffle and the inner wall of the storage tank are spaced apart to form a third reflux port, and the fourth baffle and the inner wall of the storage tank are spaced apart to form a fourth reflux port. The third reflux port and the fourth reflux port are arranged opposite each other along a second horizontal direction, and the second horizontal direction and the first horizontal direction are arranged at an angle. When the storage structure tilts or flips along one side of the second horizontal direction, the third reflux port can move to the upper area of ​​the third baffle, or the fourth reflux port can move to the upper area of ​​the fourth baffle.

[0010] In one embodiment, the surface of the first baffle away from the second baffle is provided with a plurality of first guide channels arranged in parallel, and the plurality of first guide channels are respectively connected to the first return port.

[0011] In one embodiment, the second baffle has a plurality of parallel second guide channels on its surface near the first baffle, and the plurality of second guide channels are respectively connected to the second return port.

[0012] In one embodiment, the surface of the third baffle near the second baffle is provided with a plurality of third guide channels arranged in parallel, and the plurality of third guide channels are respectively connected to the third return port.

[0013] In one embodiment, the fourth baffle is provided with a plurality of fourth guide channels arranged in parallel on the plate surface near the third baffle, and the plurality of fourth guide channels are respectively connected to the fourth return port.

[0014] In one embodiment, the liquid storage structure further includes a first guide edge, a second guide edge, a third guide edge, and a fourth guide edge. One end of the first guide edge is connected to the end of the first baffle near the first return port, and the other end extends toward the direction near the second baffle. One end of the second guide edge is connected to the end of the second baffle near the second return port, and the other end extends toward the direction away from the first baffle. One end of the third guide edge is connected to the end of the third baffle near the third return port, and the other end extends toward the direction away from the second baffle. One end of the fourth guide edge is connected to the end of the fourth baffle near the fourth return port, and the other end extends toward the direction away from the third baffle.

[0015] In one embodiment, the first guide edge includes a plurality of first guide protrusions, which extend and are arranged along a second horizontal direction to form a serrated structure, and the cross-sectional area of ​​the first guide protrusions decreases along the direction from the first baffle to the second baffle.

[0016] In one embodiment, the second guide edge includes a plurality of second guide protrusions, which extend and are arranged along a second horizontal direction to form a serrated structure, and the cross-sectional area of ​​the second guide protrusions decreases along the direction from the first baffle to the second baffle.

[0017] In one embodiment, the third guide edge includes a plurality of third guide protrusions, which extend and are arranged along a first horizontal direction to form a serrated structure, and the cross-sectional area of ​​the third guide protrusions decreases along the direction from the first baffle to the second baffle.

[0018] In one embodiment, the fourth guide edge includes a plurality of fourth guide protrusions, which extend and are arranged along a first horizontal direction to form a serrated structure, and the cross-sectional area of ​​the fourth guide protrusions decreases along the direction from the first baffle to the second baffle.

[0019] In one embodiment, the liquid storage structure further includes a folding plate, one end of which is rotatably connected to one of the baffle plates. When the tilt angle of the liquid storage structure is greater than a preset angle or when the liquid storage structure is flipped so that the opening of the liquid storage tank faces downward, the movable end of the folding plate can rotate towards the adjacent baffle plate under the action of gravity and close the liquid channel between the adjacent baffle plates. When the opening of the liquid storage tank faces upward, or when the tilt angle of the liquid storage structure is less than or equal to the preset angle, the folding plate can rotate and open the liquid channel between the adjacent baffle plates.

[0020] In one embodiment, the folding plate includes a first fixed part, a second fixed part, and a movable part. The two ends of the first fixed part are respectively fixedly connected to adjacent baffles. One end of the movable part is rotatably connected to one of the baffles. When the tilt angle of the liquid storage structure is greater than a preset angle or the liquid storage structure is flipped so that the opening of the liquid storage tank faces downward, the movable end of the movable part can rotate towards the adjacent baffle under the action of gravity and be locked in the gap area between the first fixed part and the second fixed part, so that the first fixed part, the second fixed part, and the movable part are sealed together and the liquid channel between the adjacent baffles is closed.

[0021] This application also provides a heat pipe heat exchange device, which includes an evaporation section, a condensation section, a liquid suction spray assembly, and a liquid storage structure as described in any of the above embodiments. The power element is disposed in the evaporation section, and the liquid storage structure is connected to the condensation section through the evaporation section. The liquid suction end of the liquid suction spray assembly is located in the liquid storage tank, and the spray end of the liquid suction spray assembly is located in the evaporation section. The liquid suction spray assembly can absorb liquid working fluid through its liquid suction end and spray it onto the heating surface of the power element through its spray end. The liquid working fluid sprayed onto the heating surface of the power element can absorb heat and vaporize into the condensation section, and after releasing heat and liquefying in the condensation section, it flows back to the evaporation section and flows back to the liquid storage tank through multiple return inlets.

[0022] In one embodiment, the delivery pipe of the liquid-absorbing spray assembly is a flexible tube structure near the liquid-absorbing end, so that the liquid-absorbing end of the liquid-absorbing spray assembly can always be located in the lower region of the liquid storage tank along the direction of gravity.

[0023] In one embodiment, the liquid-absorbing spray assembly has multiple liquid-absorbing ends, which are distributed on different sidewalls of the inner wall of the liquid storage tank.

[0024] In one embodiment, when the opening of the liquid storage tank faces upward, the condensation section, the evaporation section, and the liquid storage structure are arranged sequentially from high to low.

[0025] Compared with existing technologies, the liquid storage structure and heat pipe heat exchange device provided in this application, when the liquid storage structure is tilted or flipped to one side, the opening of the liquid storage tank tilts or flips downwards, and the surface of the baffle plate is tilted. For example, when the liquid storage structure tilts to the left, the left side of the baffle plate will be lower than the right side. In this tilted posture, at least one of the baffle plates' corresponding return inlets can move to the upper region of the baffle plate. At this time, the baffle plate can prevent the liquid working fluid located below the return inlet of the baffle plate from flowing out of the liquid storage tank through the return inlet, and can also achieve the balance of the internal and external gas pressure of the liquid storage tank through the return inlet.

[0026] In summary, the liquid storage structure of this application, by setting multiple baffles and a return inlet at the opening of the liquid storage tank, can effectively prevent the outflow of liquid working fluid from the storage tank when dynamic machines such as humanoid robots and low-altitude aircraft undergo acceleration, deceleration, or tilting. This ensures that the power components continuously receive heat absorption from the liquid working fluid under various dynamic operating conditions, avoiding dry burning problems caused by working fluid loss. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of a heat pipe heat exchange device according to an embodiment of this application;

[0029] Figure 2 A front view of a heat pipe heat exchange device according to an embodiment of this application;

[0030] Figure 3 for Figure 2 The sectional view at point AA is shown.

[0031] Figure 4 for Figure 3 The enlarged view at point Q is shown below;

[0032] Figure 5 A partial structural schematic diagram of a heat pipe heat exchange device according to an embodiment of this application;

[0033] Figure 6 for Figure 5 Side view of the structure shown;

[0034] Figure 7 for Figure 5 The front view of the structure shown;

[0035] Figure 8 A partial structural schematic diagram of a heat pipe heat exchange device according to another embodiment of this application;

[0036] Figure 9 A schematic diagram of the structure of a first baffle with a first guide edge provided in an embodiment of this application;

[0037] Figure 10 A schematic diagram of the structure of a first baffle with a first guide edge provided in another embodiment of this application;

[0038] Figure 11A partial structural schematic diagram of a heat pipe heat exchange device according to another embodiment of this application;

[0039] Figure 12 A partial structural schematic diagram of a heat pipe heat exchange device according to another embodiment of this application;

[0040] Figure 13 A partial structural diagram of a heat pipe heat exchange device according to an embodiment of this application (liquid tank opening facing upwards).

[0041] Figure 14 for Figure 13 Another state diagram of the partial structure of the heat pipe heat exchanger shown (the opening of the liquid storage tank is facing down after it has been flipped over).

[0042] Figure 15 A partial structural diagram of a heat pipe heat exchange device according to another embodiment of this application (liquid tank opening facing upwards);

[0043] Figure 16 for Figure 15 A partial cross-sectional view of the heat pipe heat exchange device shown with the liquid storage tank opening facing upwards.

[0044] Figure 17 for Figure 15 Another state diagram of the partial structure of the heat pipe heat exchanger shown (the opening of the liquid storage tank is facing down after it has been flipped over).

[0045] Figure 18 for Figure 15 A partial cross-sectional view of the heat pipe heat exchange device shown with the liquid storage tank opening facing downwards.

[0046] Figure 19 for Figure 15 A partial cross-sectional view of the heat pipe heat exchange device shown with the liquid storage tank opening facing the horizontal side.

[0047] Figure 20 for Figure 15 The diagram shows a partial cross-sectional view of the heat pipe heat exchange device with the liquid storage tank opening facing the other side of the horizontal plane.

[0048] Reference numerals: 100, storage tank; 110, opening reference plane; 210, baffle plate; 211, first baffle plate; 2111, first guide channel; 2112, first guide edge; 2113, first guide protrusion; 212, second baffle plate; 2121, second guide channel; 2122, second guide edge; 2123, second guide protrusion; 213, third baffle plate; 214, fourth baffle plate; 220, reflux inlet; 221, first reflux port; 222, second reflux port; 223, third reflux port; 224, fourth reflux port; 300, Folding plate; 310, First fixing part; 320, Second fixing part; 330, Movable part; 400, Evaporation section; 500, Condensation section; 510, Condensation channel; 520, Heat dissipation fins; 600, Liquid suction spray assembly; 610, Liquid suction end; 620, Spray end; 630, Delivery pipe; 640, Liquid pump; 700, Power element; 800, Connecting assembly; 810, Movable plug; 820, Balance pipe; 821, First vertical section; 822, Second vertical section; 830, Sealing pipe part; 831, First horizontal section. Detailed Implementation

[0049] For ease of understanding, in this application, the first horizontal direction is in the appendix. Figure 1 The X is used to indicate the second horizontal direction. Figure 1 The Y-indicator indicates the height direction of the storage tank. Figure 1 The Z symbol is used to indicate this.

[0050] Current heat pipe phase change heat transfer methods suffer from the problem of large and rapid loss of liquid working fluid from the evaporation section during acceleration, deceleration, and tilting movements in dynamic machinery such as humanoid robots and low-altitude aircraft. This leads to insufficient heat absorption by the power components, resulting in dry burning. This limits the application of heat pipe technology in the thermal management of dynamic machinery.

[0051] For this, please refer to Figures 1-20 This application proposes a liquid storage structure, which includes a liquid storage tank 100 and two or more baffles 210 spaced at the opening of the liquid storage tank 100 along its height direction. The liquid storage tank 100 serves as a storage container for the working fluid, and its opening communicates with the external space. The baffles 210 can be installed in various ways; for example, they can be fixed to the inner wall of the liquid storage tank 100 by welding, bonding, or mechanical fastening. Alternatively, the baffles 210 can be designed as a detachable structure, installed inside the liquid storage tank 100 by snap-fit ​​or threaded connections. One of the main functions of these baffles 210 is to effectively prevent the liquid working fluid in the liquid storage tank 100 from flowing out through its opening when the liquid storage structure tilts or flips, thereby preventing the loss of the liquid working fluid.

[0052] Each baffle plate 210 has a corresponding reflux inlet 220 at one end, which serves as a channel for the liquid working medium to enter the storage tank 100. The reflux inlets 220 can be configured by forming a gap between the edge of the baffle plate 210 and the inner wall of the storage tank 100, or by creating holes on the surface of the baffle plate 210. For example, the reflux inlets 220 can be designed as circular holes, rectangular slits, or irregularly shaped openings. Furthermore, at least some of the reflux inlets 220 are distributed in non-overlapping areas around the storage tank 100. For example, in an embodiment with two baffle plates 210, the reflux inlet 220 of the upper baffle plate 210 can be located on one side of the storage tank 100, while the reflux inlet 220 of the lower baffle plate 210 can be located on the other side of the storage tank 100.

[0053] like Figures 1-8 , Figure 13 , Figure 15 and Figure 16 As shown, when the liquid storage structure is in a normal upright position or slightly tilted, the opening of the liquid storage tank 100 faces upward, and the surface of the baffle plate 210 is usually horizontal or nearly horizontal. In this state, the liquid working fluid in the external space (e.g., the evaporation section 400 or the condensation section 500 of the heat pipe heat exchanger) can sequentially enter the liquid storage tank 100 through the surfaces of each baffle plate 210 and each return inlet 220. For example, the liquid working fluid can flow over the surface of the uppermost baffle plate 210, then enter the space below it through the return inlet 220 of the baffle plate 210, and then sequentially pass through the surface of the next layer of baffle plates 210 and the return inlet 220, finally converging at the bottom of the liquid storage tank 100.

[0054] like Figure 19 and Figure 20 As shown, when the liquid storage structure is tilted or flipped to one side, the opening of the liquid storage tank 100 tilts or flips downwards, and the surface of the baffle plate 210 is also tilted. For example, when the liquid storage structure tilts to the left, the left side of the baffle plate 210 will be lower than the right side. In this tilted posture, at least one of the baffle plates 210's corresponding return inlet 220 can move to the upper region of the baffle plate 210. At this time, the baffle plate 210 can prevent the liquid working medium located below the return inlet 220 of the baffle plate 210 from flowing out of the liquid storage tank 100 through the return inlet 220, and can also achieve the balance of the internal and external air pressure of the liquid storage tank 100 through the return inlet 220. It should be noted that the corresponding movement of the baffle plate 210 is not a rotation of itself, but a synchronous tilting movement with the entire liquid storage structure and even the entire heat pipe heat exchange device.

[0055] In summary, the liquid storage structure of this application, by setting multiple baffles 210 and a return inlet 220 at the opening of the liquid storage tank 100, can effectively prevent the outflow of liquid working fluid from the liquid storage tank 100 when dynamic machines such as humanoid robots and low-altitude aircraft undergo acceleration, deceleration, or tilting. This ensures that the power element 700 continuously receives heat absorption from the liquid working fluid under various dynamic operating conditions, avoiding dry burning problems caused by working fluid loss.

[0056] In one embodiment, such as Figure 4 As shown, this application further proposes to define any plane at the opening of the liquid storage tank 100 as the opening reference plane 110, and the orthographic projections of multiple return inlets 220 on the opening reference plane 110 are distributed in different areas around the liquid storage tank 100.

[0057] The opening reference plane 110 refers to an imaginary plane located at the opening of the liquid storage tank 100. This plane can coincide with the edge of the opening of the liquid storage tank 100 or be any plane parallel to the edge of the opening. Its main function is to provide a unified two-dimensional reference coordinate system to accurately describe and analyze the spatial distribution characteristics of the return inlets 220. By defining such a reference plane, the influence of the height difference of the return inlets 220 on the spatial distribution judgment can be eliminated, making the evaluation of the circumferential distribution of the return inlets 220 more accurate and intuitive. The orthographic projection of multiple return inlets 220 onto the opening reference plane 110 refers to the figure formed by perpendicularly mapping the geometric center or effective flow area of ​​each return inlet 220 onto the opening reference plane 110. This mapping method simplifies the position of the return inlets 220 in three-dimensional space to a distribution on a two-dimensional plane, thus clearly showing the relative positional relationship of each return inlet 220 in the circumferential direction of the liquid storage tank 100. By observing the distribution of these orthographic projections, one can intuitively determine whether the reflux inlet 220 uniformly and comprehensively covers the periphery of the liquid storage tank 100.

[0058] Furthermore, the different regions distributed around the liquid storage tank 100 mean that, on the opening reference plane 110, the orthographic projections of each return inlet 220 are not concentrated in a specific area, but are dispersed and spaced out at different locations around the opening of the liquid storage tank 100. For example, if the opening of the liquid storage tank 100 is circular, these orthographic projections can be evenly distributed on the circumference; if it is rectangular, they can be distributed on different sides of the rectangle. This distribution method aims to ensure that no matter how the liquid storage structure is tilted or flipped, some of the return inlets 220 of the baffle plate 210 can always be in a higher position, thereby effectively preventing the outflow of liquid working fluid from the liquid storage tank 100.

[0059] In one embodiment, this application further proposes that the orthographic projections of multiple reflux inlets 220 on the opening reference plane 110 can be connected to form a closed-loop structure surrounding the periphery of the storage tank 100. Specifically, "connected to form a closed-loop structure surrounding the periphery of the storage tank 100" means that the projection areas of these reflux inlets 220 are continuous or interconnected in the circumferential direction of the storage tank 100, thereby forming an uninterrupted annular region. This closed-loop structure can be implemented in various ways. For example, a sufficient number of reflux inlets 220 can be designed so that their projections on the opening reference plane 110 are adjacent to each other or partially overlap, thereby forming a continuous collection band in the circumferential direction. The closed-loop structure ensures that the liquid working fluid in the storage tank 100 cannot flow out completely when tilted or overturned.

[0060] However, this is not the only one. In other embodiments, the projection of the return inlets 220 of the multiple baffles 210 onto the opening reference plane 110 may also be discontinuous. It is only necessary to ensure that the return inlets 220 of the baffles 210 in certain specific directions (e.g., front-back, left-right directions) are in a high position in an inclined or flipped state.

[0061] In one embodiment, such as Figures 3-8 As shown, this application proposes a liquid baffle 210 including a first baffle 211 and a second baffle 212. The second baffle 212 is disposed on the side of the first baffle 211 near the bottom wall of the liquid storage tank 100. A first reflux port 221 is formed between the first baffle 211 and the inner wall of the liquid storage tank 100, and a second reflux port 222 is formed between the second baffle 212 and the inner wall of the liquid storage tank 100. The first reflux port 221 and the second reflux port 222 are arranged opposite to each other along a first horizontal direction. When the liquid storage structure tilts along one side of the first horizontal direction, the first reflux port 221 can move to the upper region of the first baffle 211, or the second reflux port 222 can move to the upper region of the second baffle 212.

[0062] Specifically, the baffle 210 is a core component used to prevent the outflow of liquid working fluid. By subdividing it into a first baffle 211 and a second baffle 212, these two baffles can work independently or collaboratively to handle different tilt conditions. They are typically made of corrosion-resistant, working fluid-compatible materials, such as metals (stainless steel, aluminum alloy) or polymer materials. The second baffle 212 is positioned on the side of the first baffle 211 near the bottom wall of the storage tank 100; that is, when the opening of the storage tank 100 is upward, the second baffle 212 is located below the first baffle 211, closer to the bottom of the storage tank 100. This layered arrangement helps to form multi-stage barriers within the storage tank 100 and provides a path for the reflux of the liquid working fluid. It can be determined that this arrangement ensures that the liquid working fluid can flow downwards in stages during reflux.

[0063] Furthermore, the first reflux port 221 is a channel for the liquid working medium to enter the storage tank 100 from the external space. It is formed by the gap between the first baffle 211 and the inner wall of the storage tank 100. The size and shape of the gap need to be designed according to the flow rate, viscosity, and working environment of the liquid working medium to ensure smooth reflux of the liquid working medium under normal working conditions, while effectively blocking the outflow of the liquid working medium when tilted or overturned. The reflux port 220 can be a continuous slit or multiple discrete holes. Similar to the first reflux port 221, the second reflux port 222 is formed by the gap between the second baffle 212 and the inner wall of the storage tank 100, and is used for the reflux of the liquid working medium. Since the second baffle 212 is located below the first baffle 211, the second reflux port 222 is usually used to receive the liquid working medium flowing down from the surface of the first baffle 211 and further guide it into the interior of the storage tank 100.

[0064] The first reflux port 221 and the second reflux port 222 are arranged opposite each other along a first horizontal direction. This clarifies that they are arranged relative to each other along a specific "first horizontal direction." For example, if the first horizontal direction is front-to-back, then the first reflux port 221 may be on the front side of the liquid storage tank 100, while the second reflux port 222 is on the rear side of the liquid storage tank 100, or vice versa. This relative arrangement is specifically designed to cope with tilting or overturning along the first horizontal direction, ensuring that no matter which side the liquid storage structure tilts or overturns in, there is always a reflux inlet 220 that can be raised above the baffle, thereby effectively blocking the outflow of liquid working fluid. When the liquid storage structure tilts or overturns along one side of the first horizontal direction, the first reflux port 221 can move to the upper region of the first baffle 211, or the second reflux port 222 can move to the upper region of the second baffle 212. This is the core function of the technical solution. When the liquid storage structure tilts or flips along a preset first horizontal direction (e.g., the front-to-back direction), due to gravity and the corresponding movement of the baffle plate 210, the reflux inlet 220 located below the tilt direction will be submerged by the liquid working medium, while the reflux inlet 220 located above the tilt direction will be relatively raised. By arranging the first reflux port 221 and the second reflux port 222 opposite to each other in the direction, it can be ensured that when tilting or flipping to either side, there is always one reflux inlet 220 (e.g., when tilting forward, the rear reflux inlet 220 is raised; when tilting backward, the front reflux inlet 220 is raised) that can move to the area above its corresponding baffle. This means that the reflux inlet 220 will be higher than the liquid surface, thereby preventing the liquid working medium in the liquid storage tank 100 from flowing out through the reflux inlet 220, effectively retaining the liquid working medium in the liquid storage tank 100.

[0065] Through the above technical solution, this application introduces a first baffle 211 and a second baffle 212 into the liquid storage structure, and arranges the first return port 221 and the second return port 222 opposite to each other along the first horizontal direction. This design ensures that when the liquid storage structure tilts or flips along one side of the first horizontal direction, regardless of which side it tilts or flips, a return inlet 220 (i.e., the first return port 221 or the second return port 222) will always move to the upper region of its corresponding baffle. This effectively prevents the liquid working medium in the liquid storage tank 100 from flowing out through the return inlet 220, thereby significantly improving the liquid working medium retention capacity and system reliability under tilting or flipping conditions in a specific direction. It is particularly suitable for applications such as robots and aircraft that may tilt or flip in the first horizontal direction.

[0066] In one embodiment, this application further proposes, as follows: Figure 5 As shown, the baffle 210 also includes a third baffle 213 and a fourth baffle 214. The third baffle 213 is disposed on the side of the second baffle 212 near the bottom wall of the storage tank 100, and the fourth baffle 214 is disposed on the side of the third baffle 213 near the bottom wall of the storage tank 100. A third return port 223 is formed between the third baffle 213 and the inner wall of the storage tank 100, and a fourth return port 224 is formed between the fourth baffle 214 and the inner wall of the storage tank 100. The third return port 223... The third return port 223 and the fourth return port 224 are arranged opposite each other along the second horizontal direction, and the second horizontal direction and the first horizontal direction are arranged at an angle (preferably vertically). When the liquid storage structure tilts or flips along one side of the second horizontal direction (for example, the robot falls to the left or right, or the aircraft tilts to the left or right), the third return port 223 can move to the upper region of the third baffle 213, or the fourth return port 224 can move to the upper region of the fourth baffle 214.

[0067] Specifically, the third baffle 213 and the fourth baffle 214 are newly added liquid-blocking components in the liquid storage structure. Together with the first baffle 211 and the second baffle 212, they form a multi-layer liquid-blocking structure. The third baffle 213 is located on the side of the second baffle 212 near the bottom wall of the liquid storage tank 100, that is, below the second baffle 212. The fourth baffle 214 is located on the side of the third baffle 213 near the bottom wall of the liquid storage tank 100, that is, below the third baffle 213. This layered arrangement creates multi-level liquid level barriers inside the liquid storage tank 100, enhancing the constraint capability on the liquid working fluid. The third reflux port 223 is formed by the third baffle 213 and the inner wall of the liquid storage tank 100 spaced apart, and the fourth reflux port 224 is formed by the fourth baffle 214 and the inner wall of the liquid storage tank 100 spaced apart. These two reflux inlets 220, similar to the first reflux inlet 221 and the second reflux inlet 222, are channels through which the liquid working medium enters the storage tank 100 when the storage structure is in its normal upright state. They are arranged opposite each other along a second horizontal direction, meaning they are distributed around the perimeter of the storage tank 100, and the direction of their connection is different from the direction of the connection between the first reflux inlet 221 and the second reflux inlet 222. The size and shape of the reflux inlets 220 can be designed according to the flow requirements and blocking effect of the liquid working medium, for example, they can be rectangular, circular, or slit-shaped. The second horizontal direction refers to the direction in which the third reflux inlet 223 and the fourth reflux inlet 224 are arranged opposite each other. There is an angle between this direction and the first horizontal direction (the direction in which the first reflux inlet 221 and the second reflux inlet 222 are arranged opposite each other). Preferably, the angle is 90 degrees, that is, the second horizontal direction is perpendicular to the first horizontal direction. This vertical arrangement ensures that when the storage structure is tilted or overturned in any horizontal direction, at least one set of reflux inlets 220 can effectively play a blocking role, thereby achieving all-round tilt and overturn protection. When the liquid storage structure tilts or flips along the second horizontal direction (e.g., to the left or right), the third baffle 213 and the fourth baffle 214 will move accordingly due to gravity. At this time, the return inlet 220 located above the tilt direction (e.g., the third return port 223 or the fourth return port 224) will move accordingly to the upper region of its corresponding baffle. The return inlet 220 in the upper region has its opening position higher than the liquid surface in the liquid storage tank 100, thereby effectively preventing the liquid working medium from flowing out of the liquid storage tank 100 through the return inlet 220.

[0068] Through the above technical solution, a third baffle 213 and a fourth baffle 214 are added to the liquid storage structure, and correspondingly, a third return port 223 and a fourth return port 224 are formed. When the liquid storage structure tilts or flips not only along the first horizontal direction but also along the second horizontal direction, such as when a robot falls to the left or right, or when an aircraft tilts to the left or right, the third baffle 213 or the fourth baffle 214 can move accordingly, causing its corresponding return inlet 220 to move to the upper region of the baffle. This design ensures that no matter which horizontal direction the liquid storage structure tilts or flips, there is always a set of return inlets 220 above the liquid surface, thereby effectively preventing the liquid working medium in the liquid storage tank 100 from flowing out through the return inlets 220. This greatly enhances the liquid working medium retention capability of the liquid storage structure under multi-directional tilting and flipping conditions, avoids working medium leakage caused by tilting or flipping, and ensures the stability and reliability of the heat pipe heat exchange device under complex attitude changes.

[0069] To further optimize the reflux efficiency of the liquid working fluid, in one embodiment, such as Figures 11-12 As shown, this application improves the surface structure of the baffle 210. Specifically, the surface of the first baffle 211 facing away from the second baffle 212 has multiple parallel first guide channels 2111, which are respectively connected to the first return port 221. Preferably, the first baffle 211 extends in a wavy shape along the second horizontal direction to form the first guide channels 2111. Meanwhile, the surface of the second baffle 212 near the first baffle 211 has multiple parallel second guide channels 2121, which are respectively connected to the second return port 222. Preferably, the second baffle 212 extends in a wavy shape along the second horizontal direction to form the second guide channels 2121. Furthermore, the surface of the third baffle 213 near the second baffle 212 has multiple parallel third guide channels, which are respectively connected to the third return port 223. Preferably, the third baffle 213 extends in a wavy shape along the first horizontal direction to form a third flow guide channel. Furthermore, the fourth baffle 214 has a plurality of parallel fourth flow guide channels on its surface near the third baffle 213, and these fourth flow guide channels are respectively connected to the fourth return port 224. Preferably, the fourth baffle 214 extends in a wavy shape along the first horizontal direction to form a fourth flow guide channel.

[0070] The aforementioned first guide channel 2111, second guide channel 2121, third guide channel, and fourth guide channel are specific structures installed on the surface of the baffle plate 210. Their main function is to provide a clear flow path for the liquid working fluid, guiding it to flow efficiently and quickly to the corresponding return inlet 220. These guide channels are typically grooves on the plate surface or channels formed by changes in the plate surface shape. By "arranging them in parallel," it can be ensured that the liquid working fluid can be effectively captured and guided into the guide channels within the entire effective collection area of ​​the baffle plate 210. Furthermore, "each channel is connected to the return inlet 220," ensuring that the liquid working fluid collected by each guide channel can directly and smoothly enter the storage tank 100, avoiding accumulation or overflow at the return inlet 220.

[0071] One efficient and compact method for forming flow channels is to extend the baffle plate 210 in a wavy shape along a specific direction. For example, the first baffle plate 211 extends in a wavy shape along the second horizontal direction, and its crests and troughs naturally form multiple parallel flow channels. This wavy structure can not only effectively guide the liquid working fluid, but also increase the structural strength of the baffle plate 210 to a certain extent. For the first baffle plate 211 and the second baffle plate 212, their flow channels extend along the second horizontal direction, which, in conjunction with the layout of the first return port 221 and the second return port 222 being arranged opposite each other along the first horizontal direction, ensures that when the liquid storage structure is in a normal upright state, the liquid working fluid can effectively flow to the return inlet 220 along the trough direction of the wave under the action of gravity. Similarly, the flow channels of the third baffle plate 213 and the fourth baffle plate 214 extend along the first horizontal direction, which, in conjunction with the layout of the third return port 223 and the fourth return port 224 being arranged opposite each other along the second horizontal direction, further improves the all-round liquid working fluid guiding capability.

[0072] In one embodiment, such as Figure 12 As shown, this application further proposes that the first baffle 211 has an inclined section at one end near the first return port 221, and the inclined section is arranged obliquely upward; the second baffle 212 also has an inclined section at one end near the second return port 222, and similarly, the inclined section is arranged obliquely upward; the third baffle 213 also has an inclined section at one end near the third return port 223, and similarly, the inclined section is arranged obliquely upward; the fourth baffle 214 also has an inclined section at one end near the fourth return port 224, and similarly, the inclined section is arranged obliquely upward.

[0073] Specifically, the inclined section refers to the end where the baffle plate 210 connects to the return inlet 220, where the cross-section is not perpendicular to the main plane of the baffle plate 210, but forms a sectional surface with a certain angle of inclination. This inclined section design provides a smooth transition area for the liquid working medium, reducing the resistance or impact that the liquid working medium may encounter when entering the return inlet 220, thereby promoting a smoother flow of the liquid working medium into the return inlet 220. For example, the inclined section can be a plane forming an angle of 30 to 60 degrees with the main plane of the baffle plate 210. This helps prevent the liquid working medium from stagnating or experiencing poor return flow at the edge of the return inlet 220, especially when the liquid level is low or the inclination angle is small, and can more effectively guide the liquid working medium into the storage tank 100.

[0074] In one embodiment, this application further proposes, as follows: Figures 8-10 As shown, the liquid storage structure also includes a first guide edge 2112, a second guide edge 2122, a third guide edge, and a fourth guide edge. Specifically, one end of the first guide edge 2112 is connected to the end of the first baffle 211 near the first return port 221, and the other end extends towards the second baffle 212. The first guide edge 2112 can effectively collect and guide the liquid working fluid, allowing it to smoothly enter the first return port 221. For example, the guide edge can be designed as a skirt or a series of spaced-apart guide columns.

[0075] Similarly, one end of the second guide edge 2122 is connected to the end of the second baffle 212 near the second return port 222, and the other end extends away from the first baffle 211. Its structure can be similar to the first guide edge 2112, for example, as an integrally formed raised edge, or as a separate component fixed by welding, bonding, or other methods. Furthermore, one end of the third guide edge is connected to the end of the third baffle 213 near the third return port 223, and the other end extends away from the second baffle 212. And, one end of the fourth guide edge is connected to the end of the fourth baffle 214 near the fourth return port 224, and the other end extends away from the third baffle 213.

[0076] By employing the aforementioned technical solution, guide edges are installed at the return inlets 220 of each baffle plate 210, effectively converging and guiding the liquid working fluid. When the liquid storage structure tilts, the liquid working fluid flows to the lower side under gravity. The guide edges can precisely guide this flowing working fluid into the corresponding return inlet 220, significantly reducing splashing and loss of the working fluid and improving the efficiency and stability of the working fluid returning to the storage tank 100.

[0077] In one embodiment, such as Figures 8-10As shown, this application further proposes that the first guide edge 2112 includes a plurality of first guide protrusions 2113, which extend and are arranged along a second horizontal direction to form a serrated structure. Furthermore, along the direction from the first baffle 211 to the second baffle 212, the cross-sectional area of ​​the first guide protrusions 2113 decreases. Preferably, the first guide protrusions 2113 are in various shapes such as triangles, semicircles, hearts, or a pointed cone between two semicircles.

[0078] Specifically, the first guide protrusions 2113 are arranged at intervals along the second horizontal direction, collectively forming a serrated edge profile. This serrated structure increases the contact area between the liquid working fluid and the guide edge, and provides multiple attachment points and guiding paths for the liquid working fluid. When the liquid working fluid flows through the guide edge, the serrated structure effectively breaks the continuity of the liquid film, preventing the liquid working fluid from forming a large-area liquid film at the edge of the first guide edge 2112, which would make backflow difficult. At the same time, its specific geometry can guide the liquid working fluid to flow in a predetermined direction.

[0079] Furthermore, the cross-sectional area of ​​the first guide protrusion 2113 gradually decreases along a specific direction, meaning that the width or thickness of the protrusion exhibits a decreasing trend. This design aims to utilize surface tension gradients and gravity to further guide the liquid working medium from areas with larger cross-sectional areas to areas with smaller cross-sectional areas, i.e., from the outside of the guide edge to the inside of the storage tank 100. Through this gradual change in cross-sectional area, a potential energy gradient conducive to the backflow of the liquid working medium can be formed, effectively preventing the liquid working medium from accumulating or flowing back at the first guide edge 2112, thereby ensuring that the liquid working medium can smoothly enter the storage tank 100.

[0080] The first guiding protrusion 2113 can adopt various geometric shapes, such as triangles, semicircles, hearts, or a cone shape between two semicircles. Triangular protrusions have sharp edges, which facilitate cutting the liquid film and guiding the liquid working medium along its inclined surface. Semicircular protrusions have smooth surfaces, reducing resistance to the liquid working medium flow and providing stable attachment points. Heart-shaped or cone-shaped protrusions combine the advantages of the above shapes, providing more complex liquid working medium guiding paths and stronger liquid film breaking capabilities to adapt to different liquid working medium characteristics and inclined operating conditions. These shape choices aim to optimize the guiding effect of the liquid working medium and improve reflux efficiency.

[0081] Furthermore, the second guide edge 2122 includes a plurality of second guide protrusions 2123, which extend and are arranged along a second horizontal direction to form a serrated structure. The cross-sectional area of ​​the second guide protrusions 2123 decreases along the direction from the first baffle 211 to the second baffle 212. Preferably, the second guide protrusions 2123 are in various shapes such as triangles, semicircles, hearts, or a pointed cone between two semicircles.

[0082] The third guide edge includes multiple third guide protrusions, which extend and are arranged along the first horizontal direction to form a serrated structure. Furthermore, the cross-sectional area of ​​the third guide protrusions decreases along the direction from the first baffle 211 to the second baffle 212. Preferably, the third guide protrusions are in various shapes such as triangles, semicircles, hearts, or a pointed cone between two semicircles.

[0083] The fourth guide edge includes multiple fourth guide protrusions, which extend and are arranged along the first horizontal direction to form a serrated structure. Furthermore, the cross-sectional area of ​​the fourth guide protrusions decreases along the direction from the first baffle 211 to the second baffle 212. Preferably, the fourth guide protrusions are in various shapes such as triangles, semicircles, hearts, or a pointed cone between two semicircles.

[0084] The effects of setting the second, third, and fourth flow guide protrusions are similar to those of setting the first flow guide protrusion 2113, and will not be described again here.

[0085] In one embodiment, such as Figures 13-17 As shown, this application further proposes that the liquid storage structure also includes a folding plate 300, one end of which is rotatably connected to one of the baffle plates 210. When the tilt angle of the liquid storage structure is greater than a preset angle (the preset angle can be set to any value between 0 and 90°) or the liquid storage structure flips in the vertical direction (flipping refers to the rotation angle of the liquid storage structure being greater than 90°, at which point the opening of the liquid storage tank 100 faces downwards, and when the rotation angle of the liquid storage structure reaches the maximum value of 180°, the liquid storage structure is in a completely flipped state, at which point the opening of the liquid storage tank 100 faces directly downwards; that is, the rotation angle of the liquid storage structure between 0 and 90° can be considered tilted or tilted to the side, and the rotation angle of the liquid storage structure between 90° and 180° can be considered flipped), the movable end of the folding plate 300 can rotate towards the adjacent baffle plate 210 under the action of gravity, and close the liquid channel between the adjacent baffle plates 210. When the opening of the liquid storage tank 100 faces upward, or when the rotation angle of the liquid storage structure is less than or equal to a preset angle, the folding plate 300 can rotate and open the liquid channel between adjacent baffle plates 210.

[0086] Specifically, the folding plate 300 is a movable component whose main function is to close or open the liquid channel under specific conditions. The folding plate 300 typically possesses a certain degree of rigidity, capable of withstanding the impact and gravity of the liquid working fluid. It can be made of metal, plastic, or other corrosion-resistant materials, and its shape and dimensions should match the liquid channel between adjacent baffle plates 210 to ensure effective sealing. The rotatable connection between the folding plate 300 and the baffle plate 210 can be achieved through hinges, shafts, or flexible connectors. The connection point should be selected on the baffle plate 210 so that the movable end of the folding plate 300 can cover the gap between adjacent baffle plates 210. For example, the folding plate 300 can be connected to the lower edge of the upper baffle plate 210, causing it to swing downwards to close the channel; or it can be connected to the upper edge of the lower baffle plate 210, causing it to swing upwards to close the channel.

[0087] like Figure 14 , Figure 17 and Figure 18 As shown, when the tilt angle of the liquid storage structure is greater than a preset angle or when the liquid storage structure flips vertically, the movable end of the folding plate 300 can rotate towards the adjacent baffle plate 210 under the action of gravity, thus closing the liquid channel between the adjacent baffle plates 210. The preset angle is a threshold determined based on the design of the liquid storage structure, the characteristics of the liquid working fluid, and the overflow prevention requirements. The center of gravity design of the folding plate 300 should allow its movable end to swing downwards naturally when tilted or flipped, thereby covering and closing the liquid channel; this is a passive and reliable driving method. The size and shape of the folding plate 300 should form an effective sealing fit with the adjacent baffle plate 210 to prevent the liquid working fluid from flowing out of the channel.

[0088] like Figure 13 , Figure 15 and Figure 16 As shown, when the opening of the liquid storage tank 100 faces upward, the folding plate 300 can rotate and open the liquid channel between adjacent baffle plates 210. The rotation of the folding plate 300 can also be achieved by gravity. When the opening of the liquid storage tank 100 faces upward, the center of gravity design of the folding plate 300 should allow its movable end to swing back to its initial position under gravity, thereby opening the channel. Alternatively, its rotation can be assisted by springs, magnets, or other reset mechanisms to ensure that the folding plate 300 does not obstruct the normal flow of the liquid working fluid between the baffle plates 210 after resetting.

[0089] In one embodiment, this application further proposes that the folding plate 300 includes a first fixed part 310, a second fixed part 320, and a movable part 330. The first fixed part 310 and the second fixed part 320 are components of the folding plate 300, and they are designed to be fixedly connected to the adjacent liquid baffle 210 to form a relatively stable frame or support structure. These fixed parts can be integrally formed with the rest of the folding plate 300, or they can be separate components that are firmly connected to the liquid baffle 210 by welding, riveting, bolting, or other methods. Their main function is to form an effective sealing structure together with the movable part 330. The movable part 330 is the part of the folding plate 300 that can rotate around a specific axis, and one end of it is rotatably connected to one of the liquid baffles 210. The movable part 330 is the core component that actually performs the action of closing the liquid channel, and its rotation can be achieved by various methods such as pins, hinges, and flexible connections to ensure that it can swing freely under the action of gravity.

[0090] The first fixed part 310 is fixedly connected to the adjacent baffle plate 210 at both ends. This fixed connection can be achieved through various engineering methods, such as welding, bonding, bolting, or snap-fit, to ensure a stable position when the liquid storage structure tilts or flips, providing a reliable reference for the locking of the movable part 330. One end of the movable part 330 is rotatably connected to one of the baffle plates 210. This connection allows the movable part 330 to rotate freely around the connection point under gravity (rotation is only possible within the space between adjacent baffle plates 210). Common rotatable connections include using pins, hinge structures, or utilizing the flexibility of the material itself to achieve rotation.

[0091] When the tilt angle of the liquid storage structure is greater than a preset angle or when the liquid storage structure flips vertically, the movable end of the movable part 330 can rotate towards the adjacent baffle plate 210 under the action of gravity and engage in the gap area between the first fixed part 310 and the second fixed part 320. Specifically, when the liquid storage structure tilts or flips, the movable part 330 will move accordingly under the action of gravity, and its free end (i.e., the movable end) will swing precisely and enter the specific space defined by the first fixed part 310 and the second fixed part 320, i.e., the gap area. This gap area is pre-designed, and its size and shape match the geometry of the movable end to achieve reliable mechanical engagement. The engagement mechanism may include a limiting protrusion, a groove fit, or locking by the elastic deformation of the movable part 330 itself.

[0092] Through the above technical solution, once the movable part 330 is engaged, the first fixed part 310, the second fixed part 320, and the movable part 330 form a tight whole, jointly sealing the liquid channel between adjacent baffles 210. This sealing fit can be achieved by setting elastic sealing rings on the contact surfaces of each component, using high-precision machined mating surfaces, or utilizing the micro-elasticity of the material itself, thereby effectively preventing the leakage of liquid working fluid. More importantly, by designing the folding plate 300 as a structure composed of a fixed part and a movable part 330, and by engaging the movable part 330 under gravity between the fixed parts, the entire movement of the folding plate 300 and the final sealing effect occur within the baffle 210 assembly, rather than between the folding plate 300 and the inner wall of the storage tank 100. This design avoids unnecessary contact and sliding friction between the folding plate 300 and the inner wall of the storage tank 100 during rotation or engagement, thus preventing sliding friction between the folding plate 300 and the inner wall of the storage tank 100, which would otherwise make the folding plate 300 difficult to open and close. This significantly improves the smoothness and reliability of the folding plate 300's switching action, eliminates jamming or wear problems caused by friction, and ensures that the folding plate 300 can stably and effectively perform its sealing function under various tilting or flipping conditions, thereby improving the working fluid retention capacity and overall operational stability of the liquid storage structure in complex environments.

[0093] Specifically, in one embodiment, this application further proposes that when the folding plate 300 closes the liquid channel between adjacent liquid baffles 210, the included angle A between the folding plate 300 and the liquid baffle 210 satisfies 90°≤A<180°, preferably 135°≤A<180°.

[0094] Angle A refers to the angle formed between the surface of the folding plate 300 and the surface (or extension thereof) of the liquid-blocking plate 210 when the folding plate 300 is fully closed. Limiting the angle to the range of 90° ≤ A < 180° ensures that the folding plate 300 forms a stable and effective physical barrier when blocking the outflow of liquid working fluid. Specifically, when the angle A is 90°, the folding plate 300 is perpendicular to the liquid-blocking plate 210, forming a right-angle bend, maximizing the use of space for blocking. When the angle A is close to 180°, the folding plate 300 is almost parallel to the liquid-blocking plate 210, maintaining a near-maximum flow area.

[0095] Preferably, the included angle A is limited to the range of 135° ≤ A < 180°. Within this preferred range, the folding plate 300 is easy to open and close, which can more conveniently block the outflow of liquid working fluid or guide the backflow of liquid working fluid.

[0096] Please see Figures 1-3This application further proposes a heat pipe heat exchange device, including an evaporation section 400, a condensation section 500, a liquid absorption spray assembly 600, and a liquid storage structure as described in any of the above embodiments. The power element 700 is disposed in the evaporation section 400, and the liquid storage structure is connected to the condensation section 500 through the evaporation section 400. The liquid absorption end 610 of the liquid absorption spray assembly 600 is located in the liquid storage tank 100, and the spray end 620 of the liquid absorption spray assembly 600 is located in the evaporation section 400. The liquid absorption spray assembly 600 can absorb liquid working fluid through its liquid absorption end 610 and spray it onto the heating surface of the power element 700 through its spray end 620. The liquid working fluid sprayed onto the heating surface of the power element 700 can absorb heat and vaporize into the condensation section 500, and after releasing heat and liquefying in the condensation section 500, it flows back to the evaporation section 400 and flows back to the liquid storage tank 100 through multiple return inlets 220.

[0097] Specifically, a heat pipe heat exchanger is a highly efficient heat transfer device that utilizes the phase change of the working fluid (evaporation and condensation) to transfer heat. Its core function is to achieve rapid and efficient heat transfer, and it is commonly used in fields such as electronic equipment heat dissipation and industrial waste heat recovery. The evaporation section 400 is the area in the heat pipe heat exchanger that absorbs heat. Here, the liquid working fluid absorbs heat from a heat source (such as power element 700) and vaporizes. Power element 700 refers to electronic components or devices that generate a large amount of heat during operation, such as CPUs, GPUs, IGBT modules, SiC MOSFETs, high-power LEDs, and batteries.

[0098] Specifically, the liquid storage structure is connected to the condensation section 500 via the evaporation section 400, which describes the path of the working fluid circulation in the heat pipe heat exchanger. The liquid storage structure, as the storage and reflux center of the working fluid, forms a closed circulation loop through the evaporation section 400 and the condensation section 500. This connection is typically achieved through pipes or channels, ensuring continuous circulation of the working fluid throughout the heat pipe heat exchanger. The liquid suction end 610 of the liquid suction spray assembly 600 is located within the liquid storage tank 100. The liquid suction end 610 is the part of the liquid suction spray assembly 600 responsible for absorbing the liquid working fluid, typically the end of the suction pipe. It can be designed with a filter screen and its position should be as close as possible to the bottom of the liquid storage tank 100 to maximize the utilization of the liquid working fluid in the liquid storage tank 100. The spray end 620 of the liquid suction spray assembly 600 is located in the evaporation section 400. The spray end 620 is the part of the liquid suction spray assembly 600 responsible for spraying the liquid working medium, usually a nozzle or spray head. Its design should ensure that the sprayed liquid working medium can uniformly cover the heating surface of the power element 700. The liquid suction spray assembly 600 can draw in the liquid working medium through its own suction end 610 and spray it onto the heating surface of the power element 700 through its own spray end 620. The process is driven by the liquid pump 640. The liquid pump 640 generates a pressure difference, which draws the liquid working medium in the liquid storage tank 100 into the suction end 610 and delivers it to the spray end 620 through the delivery pipe 630, and finally sprays it onto the heating surface of the power element 700 in a controlled manner. The liquid working fluid sprayed onto the heating surface of the power element 700 absorbs heat and vaporizes, entering the condensation section 500. Within the condensation section 500, it releases heat and liquefies, then flows back to the evaporation section 400. Finally, it returns to the storage tank 100 through multiple return inlets 220. When the liquid working fluid is sprayed onto the heating surface of the power element 700, it rapidly absorbs heat and undergoes a phase change, vaporizing into steam. This steam carries heat into the condensation section 500, where it releases heat to the external heat dissipation medium and condenses into a liquid state. Under the influence of gravity, the liquid working fluid flows back from the condensation section 500 to the evaporation section 400, and finally returns to the storage tank 100 through multiple return inlets 220 on the storage structure, completing one cycle.

[0099] By combining the liquid storage structure with the heat pipe heat exchanger and introducing the liquid suction spray assembly 600, the problems of difficult working fluid management and low passive reflux efficiency in traditional heat pipe heat exchangers during attitude changes are solved. The liquid suction spray assembly 600 can actively and efficiently spray the liquid working fluid in the storage tank 100 precisely onto the heating surface of the power element 700, significantly enhancing heat transfer efficiency and ensuring that the power element 700 is adequately cooled under various operating attitudes. Simultaneously, the multi-baffle design 210 and the reflux inlet 220 of the liquid storage structure, combined with the liquid suction spray assembly 600, not only effectively prevent the liquid working fluid from flowing out when tilted or overturned, but also ensure that the condensed liquid working fluid can stably flow back to the storage tank 100, forming an efficient and reliable closed-loop thermal management system. This enables the heat pipe heat exchanger to operate stably in more complex application scenarios, improves the adaptability and reliability of the device, and saves on working fluid consumption.

[0100] In one embodiment, this application further proposes that the delivery pipe 630 of the liquid suction spray assembly 600 is sealed through the side wall of the liquid storage tank 100 or sealed through the liquid baffle 210.

[0101] Specifically, the delivery pipe 630 of the liquid suction spray assembly 600 needs to pass through the side wall of the liquid storage tank 100 when extending from the inside of the liquid storage tank 100 to the outside (e.g., connecting to the evaporation section 400 or an external pump). To ensure the system's airtightness and prevent leakage of the liquid working fluid or the ingress of external air, the connection between the delivery pipe 630 and the side wall of the liquid storage tank 100 is designed as a sealed structure. This seal can be achieved in various ways. For example, an O-ring, gasket, or sealing ring can be placed at the hole where the delivery pipe 630 passes through the side wall of the liquid storage tank 100, and a seal can be formed by mechanical compression; alternatively, the delivery pipe 630 can be directly connected to the side wall of the liquid storage tank 100 by welding, brazing, or other methods to form a metallurgical seal; or, a threaded connection can be used in conjunction with sealant or a sealing gasket. These sealing measures aim to ensure that an airtight and liquid-tight connection is formed between the delivery pipe 630 and the side wall of the liquid storage tank 100, thereby maintaining a vacuum or specific pressure environment inside the heat pipe heat exchanger and preventing the loss of the working fluid.

[0102] In one embodiment, such as Figures 15-20 As shown, this application further proposes that the delivery pipe 630 of the liquid suction spray assembly 600 is a flexible pipe structure near the liquid suction end 610, so that the liquid suction end 610 of the liquid suction spray assembly 600 can always be located in the liquid phase region of the liquid storage tank 100 under the action of gravity when the robot is in any posture. That is, the liquid suction end 610 is always located in the lower region of the liquid storage tank 100 along the direction of gravity.

[0103] Specifically, the delivery pipe 630 of the liquid-suction spray assembly 600 is designed as a flexible pipe structure near the suction end 610. The flexible pipe structure can be made of materials with good flexibility and corrosion resistance, such as silicone tubing, corrugated metal hoses, PTFE hoses, or special rubber hoses. The length and bending radius of the flexible pipe are rationally designed to ensure sufficient range of motion within the storage tank 100. To ensure that the suction end 610 is always located in the liquid phase region of the storage tank 100, a counterweight can be placed at the suction end 610 of the flexible pipe. This counterweight, such as a ring-shaped or spherical weight made of a high-density material (e.g., stainless steel, lead, or ceramic), guides the suction end 610 to sink and move to the lower region of the storage tank 100 along the direction of gravity through gravity. Furthermore, the remaining parts of the flexible pipe and the delivery pipe 630 can be connected in a sealed manner, such as through clamps, threaded joints, or welding, to ensure the sealing of the connection and prevent leakage of the liquid working fluid or the entry of air. When the storage tank 100 tilts or flips, the flexible tube can bend and move with the lowest point of the liquid working medium surface, so that the suction end 610 is always immersed in the liquid working medium, thereby ensuring the continuous suction of the liquid working medium.

[0104] As an alternative implementation, the liquid-absorbing spray assembly 600 may have multiple liquid-absorbing ends 610, which are distributed on different sidewalls of the inner wall of the liquid storage tank 100. For example, multiple liquid-absorbing ports may be provided on the inner wall of the liquid storage tank 100 along the circumferential direction or at different heights, and each liquid-absorbing port may be connected to the liquid pump 640 of the liquid-absorbing spray assembly 600 through an independent or converging pipe. These liquid-absorbing ends 610 may be designed with a filter screen to prevent impurities from entering. The distribution of the multiple liquid-absorbing ends 610 can be optimized according to the shape of the liquid storage tank 100 and the expected tilt angle, for example, in a quincunx pattern, a cross pattern, or evenly distributed along the inner wall of the liquid storage tank 100. When the liquid storage tank 100 is tilted or flipped, even if some of the liquid suction ends 610 are exposed above the liquid working medium due to the tilt of the liquid surface, at least one or more liquid suction ends 610 can still remain submerged in the liquid working medium, thereby ensuring that the liquid suction spray assembly 600 can continuously absorb the liquid working medium.

[0105] To further optimize the condensation efficiency of the aforementioned heat pipe heat exchanger, in one embodiment, such as Figure 1 and Figure 2 As shown, the condensation section 500 is provided with multiple condensation channels 510 arranged in parallel, and heat dissipation fins 520 are provided between adjacent condensation channels 510.

[0106] Specifically, condensation channels 510 are channels located inside the condensation section 500 to guide the flow of gaseous dispersants. These channels can be formed by the inner wall structure of the condensation section 500, internal baffles, or specially designed flow channels with internal fins. Their main function is to provide a clear flow path for the gaseous dispersant and increase the surface area of ​​contact between the gaseous dispersant and the wall of the condensation section 500, thereby promoting the condensation of the gaseous dispersant. Multiple condensation channels 510 arranged in parallel mean that the gaseous dispersant can be condensed simultaneously in multiple independent channels, which helps to improve condensation efficiency and handle larger gaseous dispersant flow rates. The shape of the condensation channels 510 can be circular, square, flat, or other cross-sectional shapes to adapt to different design requirements and fluid characteristics.

[0107] Heat dissipation fins 520 are extensions disposed on the outside of condensation channels 510 or on the outer surface of condensation sections 500. Their main function is to increase the heat exchange area between the condensation section 500 and the external environment or cooling medium. Heat dissipation fins 520 are typically made of high thermal conductivity materials, such as aluminum or copper. They are disposed between adjacent condensation channels 510 or directly attached to the outer wall of the condensation channels 510 to maximize the absorption of heat conducted through the wall of the condensation section 500 and efficiently transfer it to the surrounding air, water, or other cooling fluids. Heat dissipation fins 520 can take various forms, such as vented fins, straight fins, corrugated fins, and needle-shaped fins; their geometry and arrangement affect the heat dissipation effect.

[0108] In one embodiment, this application further proposes that when the opening of the liquid storage tank 100 faces upward, the condensation section 500, the evaporation section 400, and the liquid storage structure are arranged sequentially from high to low.

[0109] Specifically, the phrase "the condenser section 500, the evaporator section 400, and the liquid storage structure are arranged sequentially from high to low" refers to the relative vertical positions of these three core components under standard operating conditions (non-tilting and non-reversing) of the heat pipe heat exchanger. The condenser section 500 is located at the highest point, the evaporator section 400 is below it, and the liquid storage structure is below the evaporator section 400, i.e., at the lowest point of the entire device. This arrangement aims to fully utilize gravity to ensure that the liquid working fluid can naturally and efficiently return after condensation. For example, in the design and installation of a heat pipe heat exchanger, the condenser section 500 can be placed at the top, the evaporator section 400 in the middle, and the liquid storage structure at the bottom, forming a top-down gravity return path. This design can be adjusted according to the actual application scenario. For example, in vertically installed equipment, the condenser section 500 can be located at the top, the evaporator section 400 in the middle, and the liquid storage structure at the bottom. In inclined or horizontally installed equipment, it is necessary to ensure the effective height difference of these three components to ensure the gravity-driven liquid working fluid reflux.

[0110] In one embodiment, such as Figures 15-20 As shown, this application further proposes a heat pipe heat exchange device, which also includes a connecting component 800. Specifically, when the liquid storage structure is tilted to one side or flipped over, the baffle plate 210 in the liquid storage tank 100 will move accordingly, and its surface will be tilted, effectively blocking the channel originally used for the return of the liquid working fluid, thereby preventing the liquid working fluid from overflowing from the liquid storage tank 100. In this case, the connecting component 800 can connect the liquid storage tank 100 and the evaporation section 400, allowing the gas or vapor in the two areas to exchange freely by establishing a gas or vapor flow path between them. This connection can be continuous or can be opened and closed as needed by a control mechanism.

[0111] The gas or vapor exchange between the storage tank 100 and the evaporation section 400 is achieved through the connecting component 800, effectively eliminating or reducing the pressure difference between the two. When the pressure in the storage tank 100 decreases due to the liquid working medium being drawn by the suction spray component 600, vapor or gas in the evaporation section 400 can enter the storage tank 100 through the connecting component 800, thereby increasing the pressure in the storage tank 100. Conversely, if the pressure in the storage tank 100 increases, it can also be released to the evaporation section 400 through the connecting component 800. The normal operation of the suction spray component 600 depends on the effective absorption of the liquid working medium in the storage tank 100. If a significant negative pressure forms in the storage tank 100, i.e., the pressure is much lower than that in the evaporation section 400 or the external environment, the suction spray component 600 may fail to extract the liquid working medium normally due to insufficient suction or cavitation, and may even lead to pump damage. By balancing the pressure through the connecting component 800, it can be ensured that the pressure in the liquid storage tank 100 is maintained within the range that allows the liquid suction spraying component 600 to work normally, thereby ensuring that it continuously and stably sprays liquid working fluid onto the power element 700.

[0112] However, it should be noted that when the opening of the liquid storage tank 100 is closed using the flap 300, if the air pressure on one side of the flap 300 and the hydraulic pressure on the other side differ significantly, the gaseous working fluid can also push open the flap 300 and enter the liquid storage tank 100 to achieve pressure balance between the liquid storage tank 100 and the evaporation section 400, allowing the liquid suction spray assembly 600 to continue operating normally. However, it should be noted that in this mode, before the pressure difference on both sides of the flap 300 reaches the threshold, the pressure difference on both sides of the flap 300 increases. Furthermore, even if the flap 300 is pushed open, the pressure difference on both sides of the flap 300 will not completely return to equilibrium, but will remain in a high-level oscillation state. That is, after a small amount of gas enters the liquid storage tank 100, the flap 300 closes again, waiting for the next balance to be broken. At this time, the liquid suction spray assembly 600 will be in a long-term negative pressure operating state.

[0113] Through the above technical solution, when the heat pipe heat exchanger is tilted or flipped, and the baffle plate 210 in the liquid storage structure closes the liquid channel to prevent the liquid working fluid from flowing out, the connecting component 800 can promptly establish a pressure balance between the liquid storage tank 100 and the evaporation section 400. This effectively avoids the problem that the liquid suction spray component 600 cannot properly absorb the liquid working fluid due to excessively low negative pressure in the liquid storage tank 100. This ensures that the power element 700 can continue to receive spray cooling of the liquid working fluid under various tilting and flipping conditions, maintaining its efficient and stable operation and significantly improving the adaptability and reliability of the device in complex environments.

[0114] In one embodiment, this application further proposes that the communication component 800 includes a movable plug 810, multiple spaced-apart balance pipes 820, and a sealing section 830. The balance pipes 820 extend from the bottom of the storage tank 100 toward the opening of the storage tank 100 and pass through all the baffles 210. When the storage tank 100 is in an inverted state and the opening of the storage tank 100 is closed, the storage tank 100 can communicate with the external space through at least one balance pipe 820. The sealing section 830 can connect to each balance pipe 820 respectively, and the movable plug 810 is movably disposed within the sealing section 830. When the liquid storage tank 100 is tilted to the side and the opening of the liquid storage tank 100 is closed, the movable plug 810 can move through the sealing pipe part 830 to the connection between the sealing pipe part 830 and the lowest balance pipe 820, and seal the lowest balance pipe 820 to prevent the liquid working medium in the liquid storage tank 100 from flowing into the external space from the lowest balance pipe 820.

[0115] Specifically, the connecting component 800 is a component used to establish a gas communication path between the liquid storage tank 100 and the external space (e.g., the evaporation section 400). Its core function is to maintain the pressure balance inside the liquid storage tank 100 when the main liquid path of the liquid storage tank 100 is blocked, preventing the liquid suction spray component 600 from malfunctioning due to negative or overpressure. The movable plug 810 is a movable component in the connecting component 800, designed to selectively open or close the balance pipe 820 according to changes in the posture of the liquid storage structure. The movable plug 810 typically has a certain density, allowing it to move within the sealing section 830 under gravity. For example, the movable plug 810 can be a spherical, cylindrical, or irregularly shaped solid, with a material density generally greater than that of the liquid working fluid, to ensure that it can sink and effectively seal in the liquid working fluid. The multiple spaced balance pipes 820 are several independent pipes distributed along the height direction within the liquid storage tank 100 and passing through all the baffles 210. The arrangement of these balancing pipes 820 ensures that at least one balancing pipe 820 provides a gas communication path regardless of the tilt or overturning state of the liquid storage tank 100. When the balancing pipe 820 passes through the baffle plate 210, it needs to be sealed to prevent leakage of the liquid working fluid from the connection between the balancing pipe 820 and the baffle plate 210. The sealing section 830 is a structure that accommodates the movable plug 810 and connects the various balancing pipes 820. It provides space for the movement of the movable plug 810 and guides the movable plug 810 to seal the connection with the lowest balancing pipe 820 in a specific tilting state. The sealing section 830 can be an integrated cavity or piping system, and its internal structure design should ensure that the movable plug 810 can move smoothly and effectively seal.

[0116] like Figures 17-18 As shown, when the liquid storage structure is in an inverted state, i.e., the opening of the liquid storage tank 100 is facing downwards or to the side, and the baffle plate 210 has closed the opening of the liquid storage tank 100 to prevent the liquid working medium from flowing out, the balance pipe 820 of the connecting component 800 comes into play. At this time, even if the main liquid path is blocked, the gas inside the liquid storage tank 100 can still communicate with the external space through at least one balance pipe 820, thereby balancing the pressure inside and outside the liquid storage tank 100 and preventing the liquid suction spray component 600 from failing to work properly due to pressure difference.

[0117] Furthermore, such as Figures 19-20As shown, when the liquid storage structure is tilted, the liquid working medium in the storage tank 100 will shift to one side due to gravity, potentially submerging the lower end of part of the balance pipe 820. In this situation, the movable plug 810, under gravity, will move within the sealing section 830 to the connection point of the lowest balance pipe 820. Due to the density design of the movable plug 810, it will sink and effectively seal the lowest balance pipe 820, thereby preventing the liquid working medium from flowing out of the storage tank 100 through the balance pipe 820. Simultaneously, the other balance pipes 820 above the liquid surface remain open, continuing to provide a gas communication path, ensuring that the internal pressure of the storage tank 100 remains balanced with the external space.

[0118] Through the above technical solution, when the liquid storage tank 100 is in a tilted state, the heat pipe heat exchange device can intelligently seal the lowest-position balance pipe 820 through the movable plug 810, effectively preventing the liquid working fluid from flowing out of the liquid storage tank 100, thereby avoiding working fluid loss. Simultaneously, the unblocked balance pipe 820 can still maintain the pressure balance between the liquid storage tank 100 and the external space, ensuring that the liquid suction spray assembly 600 can operate stably under various postures, avoiding pumping difficulties caused by negative pressure. This significantly improves the reliability and adaptability of the heat pipe heat exchange device under dynamic or variable operating conditions, and is especially suitable for equipment such as robots and aircraft that need to cope with attitude changes.

[0119] Specifically, in one embodiment, this application further proposes the above-mentioned liquid storage structure, wherein the balance tube 820 includes a first vertical section 821 and a second vertical section 822, and the sealing tube 830 includes a first horizontal section 831. The first vertical section 821 and the second vertical section 822 are distributed at intervals along a first horizontal direction on both sides of the liquid storage tank 100, and the two ends of the first horizontal section 831 are respectively connected to the first vertical section 821 and the second vertical section 822, and the movable plug 810 is movably disposed on the first horizontal section 831.

[0120] Through the above technical solution, in the heat pipe heat exchanger, when the liquid storage structure tilts or flips due to changes in the external environment, and the baffle plate 210 closes the opening of the liquid storage tank 100 to prevent the outflow of liquid working fluid, the pressure balance between the inside and outside space of the liquid storage tank 100 is crucial to ensure the normal operation of the liquid suction spray assembly 600. This application designs the balance pipe 820 to include a first vertical section 821 and a second vertical section 822, connected by a first horizontal section 831, with the movable plug 810 movably disposed within the first horizontal section 831. This achieves intelligent pressure balance and leak-proof function when the liquid storage tank 100 tilts along the first horizontal direction. Specifically, when the liquid storage tank 100 tilts to one side of the first horizontal direction, for example, when the first vertical section 821 is at the bottom, the movable plug 810 automatically moves under gravity and seals the first vertical section 821, thereby preventing the liquid working fluid from flowing out from the lower channel. Meanwhile, since the second vertical section 822 remains at a higher position, it maintains communication between the liquid storage tank 100 and the external space, ensuring that the internal and external pressures remain balanced and preventing the liquid suction spray assembly 600 from malfunctioning due to negative pressure. Conversely, when the liquid storage tank 100 tilts to the other side of the first horizontal direction, the movable plug 810 blocks the second vertical section 822, while pressure balance is achieved through the first vertical section 821. This design ensures that when the liquid storage tank 100 tilts to the side in the first horizontal direction, there is always a balancing pipe 820 connecting to the external space for pressure balance, while effectively preventing the liquid working fluid from leaking through the lower balancing pipe 820, thereby improving the reliability and operating efficiency of the heat pipe heat exchanger under complex operating conditions.

[0121] In another embodiment, the first horizontal direction and the second horizontal direction are arranged perpendicularly, and a third horizontal direction is defined between the first horizontal direction and the second horizontal direction. The first vertical segment 821 and the second vertical segment 822 are distributed at intervals on both sides of the liquid storage tank 100 along the third horizontal direction. That is, the first vertical segment 821 and the second vertical segment 822 are arranged diagonally in the liquid storage tank 100. The diagonal arrangement refers to the direction of any diagonal line of the rectangle formed by the two sides of the first horizontal direction and the two sides of the second horizontal direction. Furthermore, it should be noted that the first vertical segment 821 and the second vertical segment 822 of the liquid storage tank 100 are not necessarily diagonally arranged only if the liquid storage tank 100 is rectangular. Even if the liquid storage tank 100 is circular, the first vertical segment 821 and the second vertical segment 822 can still be diagonally arranged. This is because the diagonal arrangement only depends on the relative relationship between the first horizontal direction and the second horizontal direction, and is unrelated to the shape of the liquid storage tank 100. Even a circular liquid storage tank 100 has two mutually perpendicular horizontal directions: the front-back direction (which can form the first horizontal direction) and the left-right direction (which can form the second horizontal direction).

[0122] Specifically, when the liquid storage tank 100 is tilted to one side of the first horizontal direction or the second horizontal direction, one of the first vertical section 821 and the second vertical section 822 will be in the upper region of the liquid storage tank 100, and the other will be in the lower region of the liquid storage tank 100. At this time, the movable plug 810 will block the lower balance pipe 820 so that the upper balance pipe 820 remains in communication with the external space.

[0123] This application further proposes two technical solutions to optimize the matching relationship between the movable plug 810 and the balance pipe 820.

[0124] In the first scheme, the inner diameter of the balancing tube 820 is designed to be smaller than the outer diameter of the movable plug 810. This means that the main body of the balancing tube 820 is slightly narrower than the movable plug 810, thus allowing for a tight fit and effective sealing when the movable plug 810 enters the balancing tube 820. Simultaneously, to ensure free movement of the movable plug 810 within the sealing section 830, the outer diameter of the movable plug 810 is designed to be smaller than the inner diameter of the sealing section 830, ensuring sufficient movement space for the movable plug 810 within the sealing section 830 and preventing jamming. Furthermore, to facilitate the smooth entry of the movable plug 810 into the balancing tube 820 and its sealing effect, the inner diameter of the balancing tube 820 is larger than the outer diameter of the movable plug 810 only at the connection point with the sealing section 830; the inner diameter of other areas of the balancing tube 820 is smaller than the outer diameter of the movable plug 810. This design creates a slightly enlarged guide area at the entrance of the balance tube 820 where it connects to the sealing section 830, guiding the movable plug 810 smoothly into place. Subsequently, the movable plug 810 will fit tightly with the narrower part of the balance tube 820 to complete the sealing.

[0125] In the second scheme, the inner diameter of the balance tube 820 is designed to be greater than or equal to the inner diameter of the movable plug 810, meaning that the movable plug 810 can completely enter or pass through the balance tube 820. To achieve the sealing function, a blocking protrusion is provided inside the balance tube 820. The blocking protrusion prevents the movable plug 810 from penetrating further. When the movable plug 810 moves to the lowest point of the balance tube 820 under gravity, it contacts and is blocked by the blocking protrusion, thus forming a seal between the movable plug 810 and the blocking protrusion, or between the movable plug 810 and the inner wall of the balance tube 820 at the blocking protrusion, preventing the liquid working fluid from flowing out of the balance tube 820.

[0126] In one embodiment, this application further proposes that the liquid pump 640 of the liquid suction spray assembly 600 can be disposed in the liquid storage tank 100 or in the evaporation section 400. The power cord of the liquid pump 640 passes through the side wall of the liquid storage tank 100 or the side wall of the evaporation section 400 and is connected to an external power supply. Of course, a power plug can also be provided on the side wall of the liquid storage tank 100 or the evaporation section 400 to facilitate the power supply of the liquid pump 640.

[0127] Specifically, the liquid pump 640 is the core component of the liquid suction spray assembly 600. Its main function is to provide circulation power for the liquid working fluid, drawing it from the storage tank 100 and transporting it to the spray end 620 to effectively spray the heating surface of the power element 700. The location of the liquid pump 640 is flexible. It can be placed in the storage tank 100 or the evaporation section 400, depending on the overall structural layout of the heat pipe heat exchanger, space constraints, and the optimization requirements of the liquid working fluid's fluid path. When the liquid pump 640 is placed in the storage tank 100, it can directly draw the liquid working fluid from the bottom of the storage tank 100, resulting in a shorter path and improved liquid suction efficiency. A submersible pump is typically used in this case. When the liquid pump 640 is placed in the evaporation section 400, it may be closer to the power element 700, further shortening the liquid working fluid transport distance, or facilitating integrated design with the internal structure of the evaporation section 400.

[0128] To ensure the normal operation of the liquid pump 640, a stable power supply is required. Therefore, the power cord for the liquid pump 640 needs to be introduced from an external source. Considering that the heat pipe heat exchanger is typically under vacuum or low pressure and contains liquid working fluid, the power cord must be strictly sealed when passing through the side wall of the liquid storage tank 100 or the side wall of the evaporation section 400. The sealing methods for passing through the side wall can include, but are not limited to: using a custom-made sealing joint, typically made of corrosion-resistant material and integrating sealing elements such as O-rings, gaskets, or sealant, tightly bonded to the side wall via threaded connection or welding; or, the power cord can pass directly through a pre-drilled hole in the side wall, with the hole filled with polymer sealing material or laser welded to form a permanent seal. These sealing measures aim to prevent liquid working fluid leakage while preventing external air or impurities from entering the system, thereby maintaining the long-term stable operation of the heat pipe heat exchanger. The other end of the power cord is connected to an external power supply to provide continuous and stable power.

[0129] Furthermore, to further improve the ease of installation, maintenance, and replacement of the heat pipe heat exchanger, a power plug can be installed on the side wall of the liquid storage tank 100 or the evaporation section 400. The power plug is a pluggable electrical connection interface, with its external portion exposed outside the heat pipe heat exchanger and its internal portion connected to the power cord of the liquid pump 640. Installing a power plug avoids cutting or resoldering the power cord when the liquid pump 640 needs maintenance or replacement, thus simplifying the operation process and shortening maintenance time. The power plug is typically designed to be waterproof and corrosion-resistant to adapt to the operating environment of the heat pipe heat exchanger and ensure the reliability of the electrical connection.

[0130] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0131] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

[0132] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0133] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0134] In this application, 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 mechanical connection or an electrical connection; 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 application according to the specific circumstances.

[0135] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0136] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0137] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Claims

1. A liquid storage structure, characterized in that, It includes a liquid storage tank (100) and a plurality of baffles (210) spaced at intervals along the height direction of the liquid storage tank (100) at the opening of the liquid storage tank (100) to prevent the liquid working medium in the liquid storage tank (100) from flowing out through its own opening. Each baffle (210) has a corresponding return inlet (220) at one end. The liquid working medium in the external space can enter the liquid storage tank (100) in sequence through the plate surface of each baffle (210) and each return inlet (220). At least some of the reflux inlets (220) are distributed in different areas around the liquid storage tank (100). When the liquid storage structure tilts or flips, at least one of the reflux inlets (220) corresponding to the baffle plate (210) can move to the upper area of ​​the baffle plate (210) to prevent the liquid working medium located below the reflux inlet (220) of the baffle plate (210) from flowing out of the liquid storage tank (100) through the reflux inlet (220). The liquid storage structure also includes a folding plate (300), one end of which is rotatably connected to one of the baffle plates (210). When the tilt angle of the liquid storage structure is greater than a preset angle or when the liquid storage structure is flipped so that the opening of the liquid storage tank (100) faces downward, the movable end of the folding plate (300) can rotate towards the adjacent baffle plate (210) under the action of gravity and close the liquid channel between the adjacent baffle plates (210). When the opening of the liquid storage tank (100) faces upward, or when the tilt angle of the liquid storage structure is less than or equal to the preset angle, the folding plate (300) can rotate and open the liquid channel between the adjacent baffle plates (210).

2. The liquid storage structure according to claim 1, characterized in that, The arbitrary plane at the opening of the liquid storage tank (100) is defined as the opening reference plane (110), and the orthographic projections of the multiple return inlets (220) on the opening reference plane (110) are distributed in different areas around the liquid storage tank (100).

3. The liquid storage structure according to claim 2, characterized in that, The orthographic projections of the plurality of reflux inlets (220) onto the opening reference plane (110) can be connected to form a closed-loop structure surrounding the periphery of the liquid storage tank (100).

4. The liquid storage structure according to claim 1, characterized in that, The baffle plate (210) includes a first baffle plate (211) and a second baffle plate (212). The second baffle plate (212) is disposed on the side of the first baffle plate (211) near the bottom wall of the liquid storage tank (100). The first baffle plate (211) and the inner wall of the liquid storage tank (100) are spaced apart to form a first reflux port (221). The second baffle plate (212) and the inner wall of the liquid storage tank (100) are spaced apart to form a second reflux port (222). The first reflux port (221) and the second reflux port (222) are arranged opposite to each other along a first horizontal direction. When the liquid storage structure tilts or flips along one side of the first horizontal direction, the first reflux port (221) can move to the upper region of the first baffle (211), or the second reflux port (222) can move to the upper region of the second baffle (212).

5. The liquid storage structure according to claim 4, characterized in that, The baffle plate (210) further includes a third baffle plate (213) and a fourth baffle plate (214). The third baffle plate (213) is disposed on the side of the second baffle plate (212) near the bottom wall of the liquid storage tank (100). The fourth baffle plate (214) is disposed on the side of the third baffle plate (213) near the bottom wall of the liquid storage tank (100). The third baffle plate (213) and the inner wall of the liquid storage tank (100) are spaced apart to form a third reflux port (223). The fourth baffle plate (214) and the inner wall of the liquid storage tank (100) are spaced apart to form a fourth reflux port (224). The third reflux port (223) and the fourth reflux port (224) are arranged opposite to each other along a second horizontal direction. The second horizontal direction and the first horizontal direction are arranged at an angle. When the liquid storage structure tilts or flips along one side of the second horizontal direction, the third reflux port (223) can move to the upper region of the third baffle (213), or the fourth reflux port (224) can move to the upper region of the fourth baffle (214).

6. The liquid storage structure according to claim 5, characterized in that, The first baffle (211) has a plurality of parallel first guide grooves (2111) on the plate surface opposite to the second baffle (212), and the plurality of first guide grooves (2111) are respectively connected to the first return port (221). And / or, the second baffle (212) has a plurality of parallel second guide grooves (2121) on the plate surface near the first baffle (211), and the plurality of second guide grooves (2121) are respectively connected to the second return port (222). And / or, the third baffle (213) is provided with a plurality of parallel third guide grooves on the plate surface near the second baffle (212), and the plurality of third guide grooves are respectively connected to the third return port (223). And / or, the fourth baffle (214) has a plurality of parallel fourth guide grooves on its plate surface near the third baffle (213), and the plurality of fourth guide grooves are respectively connected to the fourth return port (224).

7. The liquid storage structure according to claim 5, characterized in that, It also includes a first guide edge (2112), a second guide edge (2122), a third guide edge and a fourth guide edge. One end of the first guide edge (2112) is connected to the end of the first baffle (211) near the first return port (221), and the other end extends toward the direction near the second baffle (212). One end of the second guide edge (2122) is connected to the end of the second baffle (212) near the second return port (222), and the other end extends in a direction away from the first baffle (211); One end of the third guide edge is connected to the end of the third baffle (213) near the third return port (223), and the other end extends in a direction away from the second baffle (212); One end of the fourth guide edge is connected to the end of the fourth baffle (214) near the fourth return port (224), and the other end extends in a direction away from the third baffle (213).

8. The liquid storage structure according to claim 7, characterized in that, The first guide edge (2112) includes a plurality of first guide protrusions (2113), which extend and are arranged along the second horizontal direction to form a sawtooth structure. Furthermore, along the direction from the first baffle (211) to the second baffle (212), the cross-sectional area of ​​the first guide protrusions (2113) tends to decrease. And / or, the second guide edge (2122) includes a plurality of second guide protrusions (2123), the plurality of second guide protrusions (2123) extend along a second horizontal direction and are arranged to form a sawtooth structure, and the cross-sectional area of ​​the second guide protrusions (2123) tends to decrease along the direction from the first baffle (211) to the second baffle (212); And / or, the third guide edge includes a plurality of third guide protrusions, the plurality of third guide protrusions extending and arranged along a first horizontal direction to form a sawtooth structure, and, along the direction from the first baffle (211) to the second baffle (212), the cross-sectional area of ​​the third guide protrusions tends to decrease; And / or, the fourth guide edge includes a plurality of fourth guide protrusions, the plurality of fourth guide protrusions extending and arranged along a first horizontal direction to form a sawtooth structure, and the cross-sectional area of ​​the fourth guide protrusions tends to decrease along the direction from the first baffle (211) to the second baffle (212).

9. The liquid storage structure according to claim 1, characterized in that, The folding plate (300) includes a first fixing part (310), a second fixing part (320), and a movable part (330). The two ends of the first fixing part (310) are respectively fixedly connected to the adjacent baffles (210). One end of the movable part (330) is rotatably connected to one of the baffles (210). When the tilt angle of the liquid storage structure is greater than a preset angle or the liquid storage structure is flipped so that the opening of the liquid storage tank (100) faces downward, the movable end of the movable part (330) can rotate towards the adjacent baffle (210) under the action of gravity and be locked in the gap area between the first fixing part (310) and the second fixing part (320) so that the first fixing part (310), the second fixing part (320), and the movable part (330) are sealed together and the liquid channel between the adjacent baffles (210) is closed.

10. A heat pipe heat exchange device, characterized in that, It includes an evaporation section (400), a condensation section (500), a liquid suction spray assembly (600), and a liquid storage structure as described in any one of claims 1-9, wherein a power element (700) is disposed in the evaporation section (400), and the liquid storage structure is connected to the condensation section (500) through the evaporation section (400). The liquid suction end (610) of the liquid suction spray assembly (600) is located in the liquid storage tank (100), and the spray end (620) of the liquid suction spray assembly (600) is located in the evaporation section (400). The liquid suction spray assembly (600) can absorb liquid working fluid through its own liquid suction end (610) and spray it to the heating surface of the power element (700) through its own spray end (620). The liquid working fluid sprayed onto the heating surface of the power element (700) can absorb heat and vaporize into the condensation section (500), and after releasing heat and liquefying in the condensation section (500), it flows back to the evaporation section (400) and flows back to the storage tank (100) through multiple return inlets (220).

11. The heat pipe heat exchange device according to claim 10, characterized in that, The delivery pipe (630) of the liquid-absorbing spray assembly (600) is a flexible pipe structure near the liquid-absorbing end (610) so that the liquid-absorbing end (610) of the liquid-absorbing spray assembly (600) can always be located in the lower region of the liquid storage tank (100) along the direction of gravity. Alternatively, the liquid-absorbing spray assembly (600) has multiple liquid-absorbing ends (610) and is distributed on different sidewalls of the inner wall of the liquid storage tank (100).

12. The heat pipe heat exchanger according to claim 10, characterized in that, When the opening of the liquid storage tank (100) faces upward, the condensation section (500), the evaporation section (400), and the liquid storage structure are arranged sequentially from high to low.

Images