A sintered capillary structure loop heat pipe

Abstract

The present invention discloses a sintered capillary structure loop heat pipe, comprising a back plate, an evaporator is fixedly arranged on the back plate, a liquid reservoir is fixedly connected to one side of the evaporator, a condenser is fixedly connected to the side of the liquid reservoir away from the evaporator, an evaporation tube is fixedly connected to the end of the evaporator away from the liquid reservoir, the evaporation tube and the condenser are connected to each other, fixing clamps are axially symmetrically arranged on both sides of the evaporation tube, a groove is provided in the back plate, the fixing clamp is slidably connected to the surface of the back plate, and a fixing component for driving the fixing clamp to slide is arranged in the groove. The sintered capillary structure loop heat pipe provided by the present invention drives the moving block and the sliding rod to approach each other through the rotation of the rotating shaft so that the two positioning clamps abut against each other, thereby clamping and limiting the evaporation tube.

Description

Technical Field

[0001] The invention relates to the technical field of loop heat pipes, in particular to a sintered capillary structure loop heat pipe. Background Art

[0002] Sintered capillary structure loop heat pipe is a type of loop heat pipe that uses a sintering process to make a capillary core. It mainly relies on capillary phenomena to drive the circulation of the working medium. The capillary core prepared by sintering technology has a porous structure. This structure can provide a higher capillary pressure, promote the circulation of the working fluid and the efficient transfer of heat, and realize the effective transfer of heat. Loop heat pipes are widely used in thermal management of electronic products, especially in spacecraft thermal control systems. They perform well and are widely studied and applied due to their high stability and long-distance heat transmission capabilities.

[0003] Since the evaporator is close to the heat source, it needs to absorb a large amount of heat and evaporate the liquid quickly. Therefore, in order to improve the heat transfer efficiency, the diameter of the evaporator pipe is usually slightly larger than the condenser and evaporator tube. This is done to ensure sufficient evaporation area and heat absorption capacity. For this reason, the evaporator is usually fixed on a mounting plate and then installed on the equipment through the plate. It is worth noting that the diameter of the evaporator should be larger than the condenser and evaporator tube. In addition, one side of the liquid supply pipe cannot be completely fixed to the mounting plate, otherwise it will affect its heat transfer efficiency. Therefore, the evaporator tube is often in a suspended state and is usually supported and limited at several points in the middle by brackets or clamps to prevent damage to it due to equipment vibration.

[0004] The clamps currently used protect the pipes by completely wrapping them. However, the pipes still need to be fully inspected before installation on site to avoid any potential damage, which means that the clamps need to be removed first and then reinstalled after inspection. If the clamp installation process is cumbersome, it will not only affect the equipment installation progress, but also require the same operation to be repeated during subsequent maintenance, which will cause inconvenience. Summary of the invention

[0005] The object of the present invention is to provide a sintered capillary structure loop heat pipe to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sintered capillary structure loop heat pipe, comprising a back plate, an evaporator is fixedly arranged on the back plate, a liquid reservoir is fixedly connected to one side of the evaporator, a condenser is fixedly connected to the side of the liquid reservoir away from the evaporator, an evaporator is fixedly connected to the end of the evaporator away from the liquid reservoir, the evaporator and the condenser are connected to each other, fixing clamps are axially symmetrically arranged on both sides of the evaporator, a groove is opened in the back plate, the fixing clamp is slidably connected to the surface of the back plate, and a fixing component for driving the fixing clamp to slide is arranged in the groove.

[0007] As a further solution of the present invention: the fixing component includes a vertical rod, the vertical rod is fixedly connected to the fixing clamp and the end is located in the groove, a movable groove is opened on the surface of the back panel, the vertical rod is slidably connected to the movable groove, the movable groove is composed of two vertical grooves and one horizontal groove, and the number of the fixing components can be set in multiple groups.

[0008] As a further solution of the present invention: a positioning frame is provided on the outer movable sleeve of the end of the vertical rod, a positioning groove is opened in the positioning frame, and the positioning groove consists of two sections of oblique grooves; a positioning ring is provided on the outer fixed sleeve of the vertical rod, and the bottom of the positioning ring is slidably fitted with the upper surface of the positioning frame.

[0009] As a further solution of the present invention: a connecting plate is fixedly connected between the two positioning frames, a rotating rod is movably provided at the center of the connecting plate, the rotating rod is threadedly connected to the connecting plate, a driving gear is fixedly connected to one end of the rotating rod away from the connecting plate, a positioning plate is movably sleeved on the outer side of the rotating rod, and the positioning plate is fixedly connected to the back plate.

[0010] As a further solution of the present invention: the back plate is axially symmetrically provided with sliding grooves on both sides of the evaporating tube, a sliding rod is slidably arranged in the sliding groove, a positioning clamp is fixedly connected to the top of the sliding rod, and the two positioning clamps can be aligned and abutted.

[0011] As a further solution of the present invention: the end of the sliding rod is located in the groove and is fixedly connected to a moving block, a rotating shaft is movably provided at the center of the two moving blocks, one end of the rotating shaft is rotatably connected to the inner wall of the back plate, and threads are provided at the contact positions of the two sides of the rotating shaft with the moving blocks and the threads have opposite rotation directions, one side of one of the moving blocks is fixedly connected to a rack, and the rack is meshed with the driving gear for transmission.

[0012] As a further solution of the present invention: a bevel gear is fixedly provided at the other end of the rotating shaft, an incomplete gear is movably provided in the groove, a round rod is fixedly provided through the center of the incomplete gear, the end of the round rod is rotatably connected to the bottom of the groove, the other end of the round rod movably passes through the upper surface of the back plate, and the incomplete gear meshes with the bevel gear for transmission.

[0013] As a further solution of the present invention: one side of the two moving blocks is respectively fixedly connected with a moving frame and a moving rod, the moving rod is slidably connected to the moving frame, a limiting hole is opened on the upper surface of the moving frame, a limiting ball is fixedly arranged on the upper surface of the moving rod, and the limiting ball is movably engaged with the limiting hole.

[0014] As a further solution of the present invention: a through hole is opened on the upper surface of the back plate, a circular ring is fixedly arranged in the through hole, a push rod is movably arranged through the center of the circular ring, a first spring is fixedly arranged between the push rod and the circular ring, and one end of the push rod is movably abutted against the limiting ball.

[0015] As a further solution of the present invention: a fixing ring is fixedly provided on the upper surface of the back plate, the round rod movably passes through the fixing ring, slots are axially symmetrically provided on both sides of the fixing ring, a positioning ball is movably provided in the slot, a second spring is fixedly connected between the positioning ball and the bottom of the slot, the round rod is located above the fixing ring and fixedly sleeved with a rotating ring, positioning holes are axially symmetrically provided on both sides of the rotating ring, and the positioning holes are movably engaged with the positioning balls.

[0016] Compared with the prior art, the present invention has the following beneficial effects: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 It is a schematic diagram of the overall internal structure of the present invention.

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of part B in the middle.

[0021] Figure 5 It is a schematic diagram of the structure of the fixing component in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the limiting ball in the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the push rod in the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the through hole in the present invention.

[0025] Fig. 9 It is a schematic diagram of the structure of the fixing ring in the present invention.

[0026] Fig.10 It is a schematic diagram of the structure of the second spring in the present invention.

[0027] Fig.11 It is a schematic diagram of the positional relationship between the positioning groove and the movable groove in the present invention.

[0028] In the figure: 1, back plate; 101, groove; 102, moving groove; 103, sliding groove; 104, through hole; 2, evaporator; 3, liquid reservoir; 4, condenser; 5, evaporation tube; 6, fixing clamp; 7, fixing assembly; 71, vertical rod; 72, positioning frame; 73, positioning groove; 74, positioning ring; 8, connecting plate; 9, rotating rod; 10, driving gear; 11, positioning plate; 12, sliding rod; 13, positioning clamp; 14, moving block; 15, rotating shaft; 16, rack; 17, bevel gear; 18, incomplete gear; 19, round rod; 20, moving frame; 201, limiting hole; 21, moving rod; 22, limiting ball; 23, circular ring; 24, top rod; 25, first spring; 26, fixing ring; 261, notch; 27, positioning ball; 28, second spring; 29, rotating ring; 291, positioning hole. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 11 In an embodiment of the present invention, a sintered capillary structure loop heat pipe comprises a back plate 1, an evaporator 2 is fixedly arranged on the back plate 1, a liquid reservoir 3 is fixedly connected to one side of the evaporator 2, a condenser 4 is fixedly connected to the side of the liquid reservoir 3 away from the evaporator 2, an evaporation tube 5 is fixedly connected to the end of the evaporator 2 away from the liquid reservoir 3, the evaporation tube 5 is communicated with the condenser 4, and fixing clips 6 are axially symmetrically arranged on both sides of the evaporation tube 5, a groove 101 is opened in the back plate 1, the fixing clip 6 is slidably connected to the surface of the back plate 1, and a fixing component 7 for driving the fixing clip 6 to slide is arranged in the groove 101; a capillary structure is arranged in the evaporator 2, the capillary structure can provide a higher capillary pressure, promote the circulation of the working medium and the efficient transfer of heat, the heat source heats the working medium in the evaporator 2, and the working medium can be water, methane After the evaporator 5 is heated, the hot gas will enter the evaporator tube 5 and transfer heat to the outside through the evaporator tube 5. After the hot gas passes through the evaporator tube 5, it will enter the condenser tube 4. The bottom of the condenser is connected to a condenser. Therefore, the condenser tube 4 is not limited and fixed in this application. The gas is condensed by the condenser and refluxes through the condenser tube 4 into the liquid reservoir 3. The liquid reservoir 3 then continues to push the condensed working medium into the evaporator 2. Heat transfer is achieved through the above-mentioned cyclic operation. The two fixing clips 6 are aligned and abutted together to wrap the evaporator tube 5 in the middle. When the evaporator tube 5 needs to be checked for damage before installation, the fixing assembly 7 in the groove 101 can drive the two fixing clips 6 to move away from each other, thereby exposing the evaporator tube 5. This operation is more convenient and convenient for checking the evaporator tube 5. After the inspection is completed, the fixing clips 6 are re-abutted to install the back panel 1 on the equipment.

[0030] See also Figure 1-Figure 5As shown, in this embodiment, preferably, the fixing assembly 7 includes a vertical rod 71, the vertical rod 71 is fixedly connected to the fixing clip 6 and the end thereof is located in the groove 101, a movable groove 102 is opened on the surface of the back plate 1, the vertical rod 71 is slidably connected to the movable groove 102, the movable groove 102 is composed of two vertical grooves and one horizontal groove, and the number of the fixing assemblies 7 can be set in multiple groups; when checking whether the evaporating tube 5 is damaged, first check the rest of the parts except the position wrapped by the fixing clip 6, and after checking that the rest of the parts are fine, move the vertical rod 71 and the fixing clip 6 in the direction away from each other, and the vertical rod 7 First, the vertical groove of the first section of the moving groove 102 is moved to the end of the first section of the vertical groove, and then the vertical rod 71 is moved horizontally. The vertical rod 71 moves to the position of the second section of the vertical groove along the horizontal groove section of the moving groove 102, and then the vertical rod 71 is moved in the direction of approaching each other along the second section of the vertical groove until the two fixing clips 6 are abutted again. The fixing assembly 7 can first release the limit of the evaporation tube 5, which is convenient for checking the position wrapped by the fixing clip 6. After the fixing clip 6 moves to one side, it will also clamp the evaporation tube 5, which can ensure the stability of the evaporation tube 5 during use. The number of fixing assemblies 7 in the application is set to two groups.

[0031] See also Figure 5 and Fig.11 When the locking cam 73 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state. The locking cam 77 is pressed against the locking cam 74 when the locking cam 73 is in the unlocked position, and the locking cam 73 is in the unlocked position when the locking cam 73 is in the unlocked position.

[0032] See also Figure 3-Figure 5As shown, in the present embodiment, preferably, a connecting plate 8 is fixedly connected between the two positioning frames 72, a rotating rod 9 is movably provided through the center of the connecting plate 8, the rotating rod 9 is threadedly connected to the connecting plate 8, and a driving gear 10 is fixedly connected to the end of the rotating rod 9 away from the connecting plate 8, a positioning plate 11 is movably sleeved on the outer side of the rotating rod 9, and the positioning plate 11 is fixedly connected to the back plate 1; the driving gear 10 is rotated, and the rotation of the driving gear 10 drives the rotating rod 9 to rotate. Since the rotating rod 9 and the connecting plate 8 are threadedly connected, the rotation of the rotating rod 9 will drive the connecting plate 8 and the positioning frame 72 to move horizontally, and the fixing clamp 6 is driven to move to one side and re-abut with the help of the cooperation of the moving groove 102 and the positioning groove 73, and the positioning plate 11 provides support for the rotating rod 9.

[0033] See also Figure 1-Figure 5 As shown, in the present embodiment, preferably, the back plate 1 is axially symmetrically provided with sliding grooves 103 on both sides of the evaporating tube 5, a sliding rod 12 is slidably arranged in the sliding groove 103, a positioning clamp 13 is fixedly connected to the top of the sliding rod 12, and the two positioning clamps 13 can be aligned and abutted; the sliding rod 12 is moved along the sliding groove 103 in a direction approaching each other, and the movement of the sliding rod 12 drives the two positioning clamps 13 to move in a direction approaching each other until the two positioning clamps 13 abut, and the two positioning clamps 13 wrap the evaporating tube 5 in the middle, which can further play a role in limiting and fixing the evaporating tube 5.

[0034] See also Figure 5 As shown, in this embodiment, preferably, the end of the sliding rod 12 is located in the groove 101 and is fixedly connected with a moving block 14, and a rotating shaft 15 is movably provided at the center of the two moving blocks 14, and one end of the rotating shaft 15 is rotatably connected to the inner wall of the back plate 1, and threads are provided at both sides of the rotating shaft 15 at the contact positions with the moving blocks 14, and the threads are rotated in opposite directions. A rack 16 is fixedly connected to one side of one of the moving blocks 14, and the rack 16 is meshed with the driving gear 10 for transmission; the rotating shaft 15 is rotated, and since threads are provided on both sides of the rotating shaft 15 and the threads are rotated in opposite directions, the rotation of the rotating shaft 15 will drive The two moving blocks 14 move towards each other, and the mutual approach of the moving blocks 14 will drive the two sliding rods 12 and the positioning clamps 13 to approach each other until the two positioning clamps 13 abut and wrap the evaporation tube 5. In this process, the movement of the moving block 14 will drive the rack 16 to move, thereby driving the driving gear 10 to rotate. The rotation of the driving gear 10 drives the rotating rod 9 to rotate. The rotation of the rotating rod 9 drives the connecting plate 8 and the positioning frame 72 to move horizontally. With the help of the cooperation of the moving groove 102 and the positioning groove 73, the fixing clamp 6 is driven to move to one side and abut again. After the installation is finally completed, the fixing clamp 6 and the positioning clamp 13 are used together to limit the evaporation tube 5.

[0035] See also Figure 3 As shown, in this embodiment, preferably, a bevel gear 17 is fixedly provided at the other end of the rotating shaft 15, and an incomplete gear 18 is movably provided in the groove 101. A round rod 19 is fixedly provided through the center of the incomplete gear 18, and the end of the round rod 19 is rotatably connected to the bottom of the groove 101, and the other end of the round rod 19 movably penetrates the upper surface of the back plate 1, and the incomplete gear 18 is meshed with the bevel gear 17 for transmission; before installation, when the evaporator tube 5 needs to be inspected, the round rod 19 is rotated, and the rotation of the round rod 19 drives the incomplete gear 18 to rotate, and the incomplete gear 18 is only one-fourth of the way round. A gear is provided on the outside of a circle. During the rotation of the incomplete gear 18, it will first mesh with one of the bevel gears 17 to drive the bevel gear 17 to rotate, thereby driving the corresponding rotating shaft 15 to rotate, so that the corresponding fixing clamp 6 moves to one side and abuts again, and the positioning clamp 13 clamps the evaporation tube 5. During this process, the other group of bevel gears 17 remain stationary to ensure the stability of the evaporation tube 5. After the clamping of the previous group is completed, the incomplete gear 18 will mesh with the bevel gear 17 of the next group to drive the fixing clamp 6 and the positioning clamp 13 of this group to limit and fix the evaporation tube 5, thereby ensuring the stability of the evaporation tube 5.

[0036] See also Figure 4-Figure 6 As shown, in this embodiment, preferably, one side of the two moving blocks 14 is respectively fixedly connected with a moving frame 20 and a moving rod 21, the moving rod 21 is slidably connected to the moving frame 20, a limiting hole 201 is provided on the upper surface of the moving frame 20, a limiting ball 22 is fixedly provided on the upper surface of the moving rod 21, and the limiting ball 22 is movably engaged with the limiting hole 201; the two moving blocks 14 approaching each other will drive the moving rod 21 to move in the moving frame 20, the limiting ball 22 is made of elastic material, and the limiting ball 22 is in a compressed state during the movement of the moving rod 21 in the moving frame 20, and when the two positioning clips 13 abut, the limiting ball 22 just moves to the position of the limiting hole 201 and is engaged with the limiting hole 201, at this time, the moving rod 21 and the moving frame 20 cannot move relative to each other, which can ensure the protective effect of the positioning clip 13 on the evaporator tube 5.

[0037] See also Figure 7-Figure 8As shown, in the present embodiment, preferably, a through hole 104 is opened on the upper surface of the back plate 1, a circular ring 23 is fixedly arranged in the through hole 104, a push rod 24 is movably arranged through the center of the circular ring 23, a first spring 25 is fixedly arranged between the push rod 24 and the circular ring 23, one end of the push rod 24 is movably abutted against the limiting ball 22; when it is necessary to release the engagement between the limiting ball 22 and the limiting hole 201, the push rod 24 is pressed downward along the through hole 104, the first spring 25 is compressed in the process, one end of the push rod 24 squeezes the limiting ball 22 downward to release the engagement with the limiting hole 201, at this time, the moving rod 21 can be moved in the moving frame 20, the force applied to the push rod 24 is removed, and the push rod 24 is driven to move upward to the initial position under the action of the first spring 25, the circular ring 23 provides support for the first spring 25.

[0038] See also Figure 3 and Figure 9-10 As shown, in this embodiment, preferably, a fixing ring 26 is fixedly provided on the upper surface of the back plate 1, the round rod 19 movably passes through the fixing ring 26, notches 261 are axially symmetrically provided on both sides of the fixing ring 26, a positioning ball 27 is movably provided in the notch 261, a second spring 28 is fixedly connected between the positioning ball 27 and the bottom of the notch 261, the round rod 19 is located above the fixing ring 26 and fixedly sleeved with a rotating ring 29, positioning holes 291 are axially symmetrically provided on both sides of the rotating ring 29, and the positioning holes 291 are movably engaged with the positioning balls 27; in the initial state, the fixing clips 6 are abutted together, and the positioning balls 27 are engaged in the positioning holes 291. , rotate the rotating ring 29. The rotation of the rotating ring 29 drives the round rod 19 to rotate, so that the incomplete gear 18 rotates. The rotation of the rotating ring 29 also drives the positioning hole 291 to rotate, so that the positioning ball 27 moves downward along the notch 261 provided in the fixed ring 26 to compress the second spring 28. The incomplete gear 18 rotates 180 degrees to drive the two bevel gears 17 to rotate, and completes the clamping and limiting of the evaporation tube 5 by the two groups of fixed components 7. The rotating ring 29 rotates 180 degrees to make the positioning hole 291 re-engaged with the positioning ball 27. At the same time, a tactile sense similar to a gear position will be generated. It can be known that the two groups of fixed components 7 have completed the clamping of the evaporation tube 5 because there is no need to rotate the rotating ring 29.

[0039] The working principle of the present invention is as follows: in the initial state, the fixing clips 6 are butted together, and the positioning ball 27 is clamped in the positioning hole 291. When the evaporator tube 5 needs to be inspected before installation, the remaining parts except the position wrapped by the fixing clip 6 are first inspected. After the remaining parts are inspected and found to be OK, the rotating ring 29 is rotated. The rotation of the rotating ring 29 drives the round rod 19 to rotate so that the incomplete gear 18 rotates. The incomplete gear 18 has a gear on the outer side of only one quarter of the circle. During the rotation of the incomplete gear 18, it will first mesh with one of the bevel gears 17, thereby driving the bevel gear 17 to rotate, thereby driving the corresponding rotating shaft 15 to rotate. Since the rotating shaft 15 Threads are provided on both sides and the threads rotate in opposite directions, so the rotation of the rotating shaft 15 will drive the two moving blocks 14 to move in the direction of approaching each other, and the mutual approach of the moving blocks 14 will drive the two sliding rods 12 and the positioning clamps 13 to approach each other, until the two positioning clamps 13 abut and wrap the evaporation tube 5. In this process, the movement of the moving block 14 will drive the rack 16 to move, thereby driving the driving gear 10 to rotate, and the rotation of the driving gear 10 drives the rotating rod 9 to rotate, and the rotation of the rotating rod 9 will drive the connecting plate 8 and the positioning frame 72 to move horizontally. In the initial state, the vertical rod 71 is located in the first section of the vertical groove, and the vertical rod 71 is also at the bottom of the first section of the inclined groove of the positioning groove 73. , move the positioning frame 72 horizontally to the position of the second vertical groove, the movement of the positioning frame 72 drives the positioning ring 74 and the vertical rod 71 to move synchronously, and under the cooperation of the moving groove 102 and the positioning groove 73, the vertical rod 71 will first move along the first vertical groove to the joint position of the first vertical groove and the horizontal groove, during this process, the vertical rod 71 also slides along the first inclined groove to the joint of the two inclined grooves, and the positioning frame 72 is continuously moved in the same direction, and the vertical rod 71 moves in the horizontal groove to the joint of the horizontal groove and the second vertical groove. During this process, the vertical rod 71 will not slide in the positioning groove 73, and the positioning frame 72 is continuously moved, and the vertical rod 71 will move along the second vertical groove until the two fixing clips 6 are re-adhesive. The cam 72 is engaged with the locking cam 76 and the locking cam 78 is engaged with the locking cam 76 which is fixed to the locking cam 76. The cam 72 is engaged with the locking cam 76 and the locking cam 78 is engaged with the locking cam 76.

Claims

1. A sintered capillary structure loop heat pipe, comprising a back plate (1), characterized in that: The back plate (1) is fixedly provided with an evaporator (2), one side of the evaporator (2) is fixedly connected with a liquid reservoir (3), a side of the liquid reservoir (3) away from the evaporator (2) is fixedly connected with a condenser (4), an end of the evaporator (2) away from the liquid reservoir (3) is fixedly connected with an evaporation tube (5), the evaporation tube (5) and the condenser tube (4) are communicated with each other, and fixing clamps (6) are axially symmetrically provided on both sides of the evaporation tube (5), a groove (101) is provided in the back plate (1), the fixing clamp (6) is slidably connected to the surface of the back plate (1), a fixing component (7) for driving the fixing clamp (6) to slide is provided in the groove (101), the fixing component (7) comprises a vertical rod (71), the vertical rod (71) is fixedly connected to the fixing clamp (6) and the end of the vertical rod (71) is located in the groove (101), and the surface of the back plate (1) is provided with a fixing component (7) for driving the fixing clamp (6) to slide. A movable groove (102) is provided, the vertical rod (71) is slidably connected to the movable groove (102), the movable groove (102) is composed of two vertical grooves and one horizontal groove, the number of the fixed components (7) can be set in multiple groups, the outer movable sleeve of the end of the vertical rod (71) is provided with a positioning frame (72), the positioning frame (72) is provided with a positioning groove (73), the positioning groove (73) is composed of two oblique grooves, the outer fixed sleeve of the vertical rod (71) is provided with a positioning ring (74), the bottom of the positioning ring (74) is slidably fitted with the upper surface of the positioning frame (72), the back plate (1) is axially symmetrically provided with sliding grooves (103) on both sides of the evaporating tube (5), a sliding rod (12) is slidably provided in the sliding groove (103), the top of the sliding rod (12) is fixedly connected with a positioning clamp (13), and the two positioning clamps (13) can be aligned and abutted.

2. A sintered capillary structure loop heat pipe according to claim 1, characterized in that: A connecting plate (8) is fixedly connected between the two positioning frames (72); a rotating rod (9) is movably provided at the center of the connecting plate (8); the rotating rod (9) is threadedly adapted to be connected to the connecting plate (8); one end of the rotating rod (9) away from the connecting plate (8) is fixedly connected to a driving gear (10); a positioning plate (11) is movably sleeved on the outer side of the rotating rod (9); and the positioning plate (11) is fixedly connected to the back plate (1).

3. A sintered capillary structure loop heat pipe according to claim 2, characterized in that: The end of the sliding rod (12) is located in the groove (101) and is fixedly connected to a moving block (14). A rotating shaft (15) is movably provided at the center of the two moving blocks (14). One end of the rotating shaft (15) is rotatably connected to the inner wall of the back plate (1). The two sides of the rotating shaft (15) are provided with threads at the contact positions with the moving blocks (14), and the threads have opposite rotation directions. A rack (16) is fixedly connected to one side of one of the moving blocks (14), and the rack (16) is meshed with the driving gear (10) for transmission.

4. The sintered capillary structure loop heat pipe according to claim 3, characterized in that: A bevel gear (17) is fixedly arranged at the other end of the rotating shaft (15), an incomplete gear (18) is movably arranged in the groove (101), a round rod (19) is fixedly arranged through the center of the incomplete gear (18), the end of the round rod (19) is rotatably connected to the bottom of the groove (101), the other end of the round rod (19) movably penetrates the upper surface of the back plate (1), and the incomplete gear (18) is meshed with the bevel gear (17) for transmission.

5. The sintered capillary structure loop heat pipe according to claim 3, characterized in that: A moving frame (20) and a moving rod (21) are fixedly connected to one side of the two moving blocks (14), respectively; the moving rod (21) is slidably connected to the moving frame (20); a limiting hole (201) is provided on the upper surface of the moving frame (20); a limiting ball (22) is fixedly arranged on the upper surface of the moving rod (21); and the limiting ball (22) is movably engaged with the limiting hole (201).

6. The sintered capillary structure loop heat pipe according to claim 5, characterized in that: A through hole (104) is provided on the upper surface of the back plate (1), a circular ring (23) is fixedly arranged in the through hole (104), a push rod (24) is movably arranged through the center of the circular ring (23), a first spring (25) is fixedly arranged between the push rod (24) and the circular ring (23), and one end of the push rod (24) is movably abutted against the limiting ball (22).

7. The sintered capillary structure loop heat pipe according to claim 4, characterized in that: A fixing ring (26) is fixedly provided on the upper surface of the back plate (1), the round rod (19) movably passes through the fixing ring (26), notches (261) are axially symmetrically provided on both sides of the fixing ring (26), a positioning ball (27) is movably provided in the notch (261), a second spring (28) is fixedly connected between the positioning ball (27) and the bottom of the notch (261), the round rod (19) is located above the fixing ring (26) and is fixedly sleeved with a rotating ring (29), positioning holes (291) are axially symmetrically provided on both sides of the rotating ring (29), and the positioning holes (291) are movably engaged with the positioning balls (27).

Images