Fixing structure of plugging terminal and photovoltaic connector clamp

Abstract

The invention relates to the technical field of photovoltaic terminals, in particular to a fixing structure of a plug terminal and a photovoltaic connector clamp, which comprise a fixing substrate, a fixed end and a movable end, the movable end comprises a trigger mechanism arranged on the movable inner pipe, a pressing mechanism arranged between the movable end shell and the movable inner pipe, a pull-back mechanism staggered with the pressing mechanism, a rotating inner pipe arranged in the movable inner pipe, a movable terminal inserted in the rotating inner pipe and a heat sensing mechanism arranged on the fixed base plate. The movable terminal and the fixed terminal are both sleeved with connecting mechanisms, the movable terminal and the fixed terminal are connected and fixed through the arrangement of a triggering mechanism and a pressing mechanism, the fixed terminal and the movable terminal are prevented from being separated, and through the arrangement of a heat sensing mechanism and a pull-back mechanism, when a sensing mechanism detects that the temperature of the connecting position of the fixed terminal and the movable terminal rises, the movable terminal and the fixed terminal are connected and fixed. And the pull-back mechanism drives the movable terminal to move, so that the fixed terminal is separated from the movable terminal, and the risk of fire is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic terminals, and in particular to a fixing structure of a plug-in terminal and a photovoltaic connector clamp. Background Art

[0002] Photovoltaic terminals are connectors used to connect cables and photovoltaic modules, inverters or other electrical equipment in photovoltaic systems. Photovoltaic terminals are mainly used to ensure the safe and efficient transmission of current, while also being protective and durable to cope with harsh conditions in outdoor environments.

[0003] A connector terminal fixing structure provided by publication number CN215771644U, a cable is inserted into a shell, a terminal is crimped on one end of the cable, and the terminal is located on one side of the shell, a semicircular terminal fixing structure is fixedly sleeved on the shoulder of the terminal, a connector is crimped on the other end of the cable, and the connector is located on the other side of the shell.

[0004] However, when the above-mentioned connector terminal fixing structure is used, after the terminals are fixed, the two opposite terminals will be connected to each other, so that the terminals connect the circuit. However, due to the resistance at the connection between the two terminals, heat is easily generated at the connection between the terminals, which poses a greater fire hazard. Moreover, once a fire hazard occurs, if the two terminals cannot be separated in time, heat will continue to accumulate between the two terminals, further increasing the fire hazard. Summary of the invention

[0005] The object of the present invention is to provide a fixing structure of a plug-in terminal and a photovoltaic connector clamp to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] On the one hand, a fixing structure of a plug-in terminal is provided, comprising:

[0008] A fixed base plate, on which a plurality of spacers are arranged at intervals, a mounting plate is arranged on the fixed base plate, and a mounting hole is arranged on the mounting plate;

[0009] A fixed end, the fixed end comprising a fixed end housing disposed between the partitions, a fixed tube disposed in the fixed end housing, and a fixed terminal disposed in the fixed tube;

[0010] The movable end comprises a movable end shell located between the partitions and arranged opposite to the fixed shell, a movable inner tube arranged in the movable end shell, a trigger mechanism arranged on the movable inner tube, a clamping mechanism arranged between the movable end shell and the movable inner tube, a pull-back mechanism staggered with the clamping mechanism, a rotating inner tube arranged in the movable inner tube, a movable terminal inserted in the rotating inner tube, and a heat-sensing mechanism arranged on the fixed base plate;

[0011] The movable terminal and the fixed terminal are both provided with connecting mechanisms, and the fixed terminal is inserted into the fixed tube through the connecting mechanism to connect the fixed terminal and the fixed tube. When the movable terminal is inserted into the rotating inner tube through another connecting mechanism, after the movable terminal and the rotating inner tube are connected, the movable terminal is rotated to make the trigger mechanism release the fixation of the clamping mechanism, so that the clamping mechanism pushes the rotating inner tube to move, so that the movable terminal and the fixed terminal are connected and contact the heat-sensing mechanism. When the temperature at the connection between the movable terminal and the fixed terminal exceeds the safe temperature, the heat-sensing mechanism releases the fixation of the pull-back mechanism, so that the pull-back mechanism pulls the rotating inner tube, so that the fixed terminal and the movable terminal are separated.

[0012] Preferably, a slide groove and a fixed hole are provided in the fixed tube, a sliding partition is provided in the movable end shell, and the movable inner tube includes a movable tube body provided in the movable end shell, a movable surrounding edge provided on the movable tube body, a movable groove provided on the movable tube body and the movable surrounding edge and cooperating with the sliding partition, a clamping guide hole and a pull-back guide groove provided on the movable surrounding edge, and a connecting ring provided in the movable tube body.

[0013] Preferably, the trigger mechanism includes a trigger groove provided on the movable peripheral edge, a trigger slider disposed in the trigger groove, a hook plate disposed on the trigger slider, and a trigger plate disposed on the hook plate.

[0014] Preferably, the clamping mechanism includes a clamping shell arranged between the sliding partitions, a clamping guide rod arranged in the clamping shell, a clamping sleeve rod sleeved on the clamping guide rod and passing through the clamping guide hole, an outward spring sleeved on the clamping guide rod, and a clamping block arranged on the clamping sleeve rod.

[0015] Preferably, the rotating inner tube includes a rotating tube body arranged in the movable tube body, a rotating edge arranged on the rotating tube body, a clamping hole arranged on the rotating edge, a pull-back movable groove arranged on the rotating edge and spaced apart from the clamping hole, a limiting ring arranged on the rotating tube body and located between the two connecting rings, a second slide groove arranged in the rotating tube body, and a second fixing hole arranged on the bottom wall of the second slide groove.

[0016] Preferably, the pullback mechanism includes a pullback shell located between the sliding partitions and staggered with the clamping shell, a pullback guide rod arranged in the pullback shell, a pullback sleeve rod sleeved on the pullback guide rod and passing through the pullback guide groove and the pullback movable groove in sequence, a contraction spring sleeved on the pullback guide rod, and a pullback block arranged on the pullback sleeve rod.

[0017] Preferably, the heat-sensing mechanism includes a support rod arranged on the fixed substrate, an evaporative liquid arranged in the support rod, a piston rod inserted in the support rod, a stop plate arranged on the piston rod, a positioning groove and a release groove provided on the stop plate.

[0018] Preferably, the connecting mechanism includes a shell arranged on the fixed terminal or the movable terminal, a pressing groove arranged on the shell, a pressure plate guide rod inserted in the pressing groove, a pressure plate arranged on the pressure plate guide rod, a fixing spring arranged between the pressure plate and the pressing groove, and a fixing rod arranged on the pressure plate; when the pressure plate is pressed into the pressing groove, the fixed terminal is inserted into the fixed tube body or the movable terminal is inserted into the movable tube body; the pressure plate is released so that the fixing spring inserts the fixing rod into the fixing hole one or the fixing hole two, thereby fixing the fixed terminal in the fixed tube body and fixing the movable terminal in the movable tube body.

[0019] Preferably, the movable terminal is rotated so that the rotating enclosure pushes the trigger plate to move, so that the hook plate is disengaged from the clamping sleeve rod, so that the outward spring pushes the clamping sleeve rod to be inserted into the clamping hole, so that the clamping block pushes the fixed terminal and the movable terminal to connect and fix. When the temperature at the contact point between the fixed terminal and the connecting terminal rises above the safe temperature, the evaporative liquid in the support rod in contact with the contact point between the fixed terminal and the connecting terminal is evaporated, pushing the piston rod to move, so that the relaxation groove is aligned with the pull-back block, and the contraction spring drives the pull-back block to move and move with the rotating enclosure, so that the fixed terminal and the movable terminal are disengaged.

[0020] On the other hand, a photovoltaic connector clamp is also provided, comprising a fixing structure of the plug-in terminal as described in any one of the above items.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention can quickly fix the movable terminal in the rotating tube body and the fixed terminal in the fixed tube by setting the connecting mechanism, connect and fix the movable terminal and the fixed terminal by setting the trigger mechanism and the clamping mechanism, prevent the fixed terminal and the movable terminal from being separated, and when the sensing mechanism detects that the connection between the fixed terminal and the movable terminal is heated up by setting the heat sensing mechanism and the pull-back mechanism, the pull-back mechanism drives the movable terminal to move, quickly separates the fixed terminal and the movable terminal, and reduces the risk of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the active end of the present invention;

[0025] Figure 3 A diagram showing the connection relationship between the movable inner tube and the rotating inner tube of the present invention;

[0026] Figure 4 A diagram showing the connection relationship between the movable inner tube and the rotating inner tube of the present invention from another perspective;

[0027] Figure 5 It is a schematic cross-sectional structural diagram of the movable inner tube and the rotating inner tube of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the movable end housing of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the movable inner tube of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the rotating inner tube of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the trigger mechanism of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0033] Fig.11 It is a cross-sectional structural schematic diagram of the clamping mechanism of the present invention;

[0034] Fig.12 It is a structural schematic diagram of the heat-sensing mechanism of the present invention;

[0035] Fig.13 It is a structural schematic diagram of the pullback mechanism of the present invention;

[0036] Fig.14 It is a cross-sectional structural schematic diagram of the pullback mechanism of the present invention;

[0037] Fig.15 It is a structural schematic diagram of the fixed end of the present invention;

[0038] Fig.16 It is a structural schematic diagram of the connection mechanism of the present invention;

[0039] Fig.17 It is a schematic cross-sectional structural diagram of the connecting mechanism of the present invention.

[0040] In the figure: 1, fixed base plate; 2, partition plate; 3, mounting plate; 4, mounting hole; 5, fixed end shell; 6, fixed tube; 7, fixed terminal; 8, movable end shell; 9, movable terminal; 10, slide groove 1; 11, fixed hole 1; 12, sliding partition plate; 13, movable tube body; 14, movable surrounding edge; 15, movable groove; 16, clamping guide hole; 17, pull-back guide groove; 18, connecting ring; 19, trigger groove; 20, trigger slider; 21, hook plate; 22, trigger plate; 23, clamping shell; 24, clamping guide rod; 25, clamping sleeve Rod; 26, outward spring; 27, clamping block; 28, rotating tube body; 29, rotating edge; 30, clamping hole; 31, pull-back movable groove; 32, limit ring; 33, slide groove two; 34, fixed hole two; 35, pull-back shell; 36, pull-back guide rod; 37, pull-back sleeve rod; 38, contraction spring; 39, pull-back block; 40, support rod; 41, fixed rod; 42, piston rod; 43, abutment plate; 44, positioning groove; 45, release groove; 46, shell; 47, pressure groove; 48, pressure plate guide rod; 49, pressure plate; 50, fixed spring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 17 , the present invention provides a technical solution:

[0043] A fixing structure of a plug-in terminal, comprising:

[0044] A fixed base plate 1 is provided with a plurality of spaced partitions 2, which are fixedly connected to the fixed base plate 1 by means of screws or the like. A mounting plate 3 is provided on the fixed base plate 1, which is fixedly connected to the fixed base plate 1 by means of screws or the like. The mounting plate 3 is L-shaped, and a mounting hole 4 is provided on the mounting plate 3. Bolts can be inserted into the mounting hole 4 to fix the fixed base plate 1 on the mounting platform.

[0045] The fixed end includes a fixed end shell 5, a fixed tube 6, and a fixed terminal 7. The fixed end shell 5 is arranged between the partitions 2, and the fixed end shell 5 is fixedly connected to the partition 2 by gluing or other means. The fixed tube 6 is arranged in the fixed end shell 5, and the fixed tube 6 is fixedly connected to the fixed end shell 5 by gluing or other means. The fixed terminal 7 is arranged in the fixed tube 6, and a slide groove 10 and a fixing hole 11 arranged on the bottom wall of the slide groove 10 are opened in the fixed tube 6.

[0046] The movable end includes a movable end shell 8, a movable inner tube, a trigger mechanism, a clamping mechanism, a pull-back mechanism, a rotating inner tube, a movable terminal 9 and a heat-sensing mechanism. The movable end shell 8 is located between the partitions 2 and is arranged opposite to the fixed shell 46. The movable end shell 8 is fixedly connected to the partition 2 by gluing or other means. A sliding partition 12 is arranged in the movable end shell 8. The sliding partition 12 is fixedly connected to the inner wall of the movable end shell 8 by setting screws or other means. The movable inner tube includes a movable tube body 13, a movable surrounding edge 14, a movable groove 15, a clamping guide hole 16, a pull-back guide groove 17 and a connecting ring 18. The movable tube body 13 is arranged in the movable end shell 8. The movable tube body 13 and The movable end shell 8 is connected by a moving chain, the moving edge 14 is arranged on the moving tube body 13, and the moving edge 14 is fixedly connected to the moving tube body 13 by gluing or the like. The moving groove 15 is opened on the moving tube body 13 and the moving edge 14 and cooperates with the sliding partition 12, so that the moving tube body 13 is sleeved on the sliding partition 12, so that the sliding partition 12 and the moving groove 15 are movably connected, the clamping guide hole 16 and the pull-back guide groove 17 are opened on the moving edge 14 and are spaced apart on the moving edge 14, the connecting ring 18 is arranged in the moving tube body 13, and the connecting ring 18 is fixedly connected to the inner wall of the moving tube body 13 by integral molding or the like, and two connecting rings 18 are provided.

[0047] The trigger mechanism includes a trigger groove 19, a trigger slider 20, a hook plate 21, and a trigger plate 22. The trigger groove 19 is opened on the movable surrounding edge 14, and the trigger groove 19 is in an arc shape. The trigger slider 20 is arranged in the trigger groove 19, and the trigger slider 20 is movably connected to the trigger groove 19. The hook plate 21 is arranged on the trigger slider 20, and the hook plate 21 is fixedly connected to the trigger slider 20 by means of integral molding or the like. The trigger plate 22 is arranged on the hook plate 21, and the trigger plate 22 is fixedly connected to the hook plate 21 by means of setting screws or the like.

[0048] The clamping mechanism includes a clamping shell 23, a clamping guide rod 24, a clamping sleeve rod 25, an outward spring 26 and a clamping block 27. The clamping shell 23 is arranged between the sliding partitions 12, and the clamping shell 23 is fixedly connected to the sliding partition 12 by gluing or other means. The clamping guide rod 24 is arranged in an empty groove in the clamping shell 23, and the clamping guide rod 24 is fixedly connected to the bottom wall of the empty groove in the clamping shell 23 by setting screws or other means. The clamping sleeve rod 25 is sleeved on the clamping guide rod 24 and passes through the clamping guide hole 16. The clamping sleeve 25 is movably connected to the clamping guide rod 24, and the clamping sleeve 25 is movably connected to the side wall of the clamping guide hole 16. The outward spring 26 is sleeved on the clamping guide rod 24, and one end of the outward spring 26 is fixedly connected to the clamping sleeve 25 by setting a clamp or the like, and the other end of the outward spring 26 is fixedly connected to the inner wall of the empty groove in the clamping shell 23 by setting a clamp or the like. The clamping block 27 is set on the clamping sleeve 25, and the clamping block 27 is fixedly connected to the clamping sleeve 25 by means of integral molding or the like.

[0049] The rotating inner tube includes a rotating tube body 28, a rotating edge 29, a clamping hole 30, a pull-back movable groove 31, a limiting ring 32, a second slide groove 33 and a second fixing hole 34. The rotating tube body 28 is arranged in the movable tube body 13, and the rotating tube body 28 is rotatably connected to the movable tube body 13. The rotating edge 29 is arranged on the rotating tube body 28, and the rotating edge 29 is fixedly connected to the rotating tube body 28 by gluing or the like. The clamping hole 30 is arranged on the rotating edge 29, the pull-back movable groove 31 is arranged on the rotating edge 29 and is spaced from the clamping hole 30. The limiting ring 32 is arranged on the rotating tube body 28 and is located between the two connecting rings 18. The limiting ring 32 is arranged on the rotating tube body 28, and the limiting ring 32 is fixedly connected to the inner wall of the rotating tube body 28 by means of integral molding or the like. The second slide groove 33 is arranged on the second slide groove 33 in the rotating tube body 28, and the second fixing hole 34 is arranged on the bottom wall of the second slide groove 33.

[0050] The pull-back mechanism includes a pull-back shell 35, a pull-back guide rod 36, a pull-back sleeve rod 37, a contraction spring 38 and a pull-back block 39. The pull-back shell 35 is located between the sliding partitions 12 and is staggered with the pressing shell 23. The pull-back shell 35 is fixedly connected to the sliding partition 12 by gluing or other means. The pull-back guide rod 36 is arranged in an empty groove in the pull-back shell 35. The pull-back guide rod 36 is fixedly connected to the bottom wall of the empty groove in the pull-back shell 35 by setting screws or other means. The pull-back sleeve rod 37 is sleeved on the pull-back guide rod 36 and passes through the pull-back guide rod 36 in sequence. The pull-back groove 17 and the pull-back movable groove 31, the pull-back sleeve rod 37 are movably connected with the pull-back guide rod 36, the pull-back guide groove 17 and the pull-back movable groove 31 respectively, the contraction spring 38 is sleeved on the pull-back guide rod 36, one end of the contraction spring 38 is fixedly connected to the pull-back sleeve rod 37 by setting a clamp or the like, the other end of the contraction spring 38 is fixedly connected to the inner wall of the empty groove in the pull-back shell 35 by setting a clamp or the like, the pull-back block 39 is set on the pull-back sleeve rod 37, and the pull-back block 39 is fixedly connected to the pull-back sleeve rod 37 by means of integral molding or the like.

[0051] The heat-sensing mechanism includes a support rod 40, an evaporating liquid, a piston rod 42, a butt plate 43, a positioning groove 44 and a release groove 45. The support rod 40 is arranged on the fixed substrate 1, and the support rod 40 is fixedly connected to the fixed substrate 1 by gluing or the like. There is a hollow cavity in the support rod 40, and the evaporating liquid is arranged in the hollow cavity in the support rod 40. Different safety temperatures are set by selecting different evaporating liquids. The piston rod 42 is inserted in the support rod 40, and the piston rod 42 is movably connected to the support rod 40. The butt plate 43 is arranged on the piston rod 42, and the butt plate 43 is fixedly connected to the piston rod 42 by setting screws or the like. The positioning groove 44 and the release groove 45 are provided on the butt plate 43. The butt plate 43 is used to resist the fixed pull-back block 39. By opening the positioning groove 44, the butt plate 43 can move along the pull-back sleeve. The area of ​​the release groove 45 is larger than the area of ​​the pull-back block 39, and the release groove 45 is connected to the positioning groove 44.

[0052] The connecting mechanism includes a housing 46, a pressing groove 47, a pressing plate 49 guide rod 48, a pressing plate 49, a fixing spring 50, and a fixing rod 41. The housing 46 is provided on the fixed terminal 7 or the movable terminal 9. The pressing groove 47 is provided on the housing 46. The pressing plate 49 guide rod 48 is provided on the pressing plate 49. The pressing plate 49 guide rod 48 is fixedly connected to the pressing plate 49 by means of screws, etc. The pressing plate 49 guide rod 48 is inserted on the bottom wall of the pressing groove 47 so that the pressing plate 49 is movably connected to the pressing groove 47. The fixing spring 50 is provided between the pressing plate 49 and the pressing groove 47. One end of the fixing spring 50 is provided by means of a clamp, etc. The pressing plate 49 is fixedly connected with the pressing plate 49, the other end of the fixing spring 50 is fixedly connected with the bottom wall of the pressing groove 47 by setting a clamp or the like, the fixing rod 41 is set on the pressing plate 49, and the guiding rod 48 of the pressing plate 49 is fixedly connected with the pressing plate 49 by setting screws or the like. When the pressing plate 49 is pressed into the pressing groove 47, the fixed terminal 7 is inserted into the fixed tube 6 body or the movable terminal 9 is inserted into the movable tube body 13, the pressing plate 49 is loosened to allow the fixing spring 50 to insert the fixing rod 41 into the fixing hole 11 or the fixing hole 2 34, the fixed terminal 7 is fixed in the fixed tube 6 body, and the movable terminal 9 is fixed in the movable tube body 13.

[0053] Working principle: When in use, press the pressing plate 49 on the fixed terminal 7 to retract the pressing plate 49 into the pressing groove 47, insert the fixed terminal 7 into the fixed tube 6, and move the pressing plate 49 along the slide groove 10. When the fixing rod 41 is inserted into the fixing hole 11, the fixed terminal 7 is fixed. Then press the pressing plate 49 on the movable terminal 9 to retract the pressing plate 49 into the pressing groove 47, insert the movable terminal 9 into the fixed tube 6, and move the pressing plate 49 along the slide groove 10. When the fixing rod 41 is inserted into the fixing hole 11, the movable terminal 9 is fixed. Then rotate the movable terminal 9 to rotate the surrounding edge 29. The trigger plate 22 is pushed to move, so that the hook plate 21 is disengaged from the clamping sleeve rod 25, and the extended spring 26 pushes the clamping sleeve rod 25 to insert into the clamping hole 30, so that the clamping block 27 pushes the fixed terminal 7 and the movable terminal 9 to connect and fix. When the temperature at the contact point between the fixed terminal 7 and the connecting terminal rises above the safe temperature, the evaporative liquid in the support rod 40 that is in contact with the fixed terminal 7 and the connecting terminal is evaporated, pushing the piston rod 42 to move, so that the release groove 45 is aligned with the pull-back block 39, and the contraction spring 38 drives the pull-back block 39 to move and move with the rotating enclosure plate, so that the fixed terminal 7 and the movable terminal 9 are disengaged.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing structure of a plug terminal, characterized in that: include: A fixed base plate, on which a plurality of spacers are arranged at intervals, a mounting plate is arranged on the fixed base plate, and a mounting hole is arranged on the mounting plate; A fixed end, the fixed end comprising a fixed end housing disposed between the partitions, a fixed tube disposed in the fixed end housing, and a fixed terminal disposed in the fixed tube; The movable end comprises a movable end shell located between the partitions and arranged opposite to the fixed shell, a movable inner tube arranged in the movable end shell, a trigger mechanism arranged on the movable inner tube, a clamping mechanism arranged between the movable end shell and the movable inner tube, a pull-back mechanism staggered with the clamping mechanism, a rotating inner tube arranged in the movable inner tube, a movable terminal inserted in the rotating inner tube, and a heat-sensing mechanism arranged on the fixed base plate; The movable terminal and the fixed terminal are both provided with connecting mechanisms, and the fixed terminal is inserted into the fixed tube through the connecting mechanism to connect the fixed terminal and the fixed tube. When the movable terminal is inserted into the rotating inner tube through another connecting mechanism, after the movable terminal and the rotating inner tube are connected, the movable terminal is rotated to make the trigger mechanism release the fixation of the clamping mechanism, so that the clamping mechanism pushes the rotating inner tube to move, so that the movable terminal and the fixed terminal are connected and contact the heat-sensing mechanism. When the temperature at the connection between the movable terminal and the fixed terminal exceeds the safe temperature, the heat-sensing mechanism releases the fixation of the pull-back mechanism, so that the pull-back mechanism pulls the rotating inner tube, so that the fixed terminal and the movable terminal are separated.

2. A fixing structure of a plug terminal according to claim 1, characterized in that: A slide groove and a fixed hole are provided in the fixed tube, a sliding partition is provided in the movable end shell, and the movable inner tube includes a movable tube body provided in the movable end shell, a movable surrounding edge provided on the movable tube body, a movable groove provided on the movable tube body and the movable surrounding edge and cooperating with the sliding partition, a clamping guide hole and a pull-back guide groove provided on the movable surrounding edge, and a connecting ring provided in the movable tube body.

3. A fixing structure of a plug terminal according to claim 2, characterized in that: The trigger mechanism comprises a trigger groove provided on the movable surrounding edge, a trigger slider arranged in the trigger groove, a hook plate arranged on the trigger slider, and a trigger plate arranged on the hook plate.

4. A fixing structure of a plug terminal according to claim 3, characterized in that: The clamping mechanism includes a clamping shell arranged between the sliding partitions, a clamping guide rod arranged in the clamping shell, a clamping sleeve rod sleeved on the clamping guide rod and passing through the clamping guide hole, an outward spring sleeved on the clamping guide rod, and a clamping block arranged on the clamping sleeve rod.

5. A fixing structure of a plug terminal according to claim 4, characterized in that: The rotating inner tube includes a rotating tube body arranged in the movable tube body, a rotating edge arranged on the rotating tube body, a clamping hole arranged on the rotating edge, a pull-back movable groove arranged on the rotating edge and spaced apart from the clamping hole, a limiting ring arranged on the rotating tube body and located between the two connecting rings, a second slide groove arranged in the rotating tube body, and a second fixing hole arranged on the bottom wall of the second slide groove.

6. A fixing structure of a plug terminal according to claim 5, characterized in that: The pullback mechanism includes a pullback shell located between the sliding partitions and staggered with the clamping shell, a pullback guide rod arranged in the pullback shell, a pullback sleeve rod sleeved on the pullback guide rod and passing through the pullback guide groove and the pullback movable groove in sequence, a contraction spring sleeved on the pullback guide rod, and a pullback block arranged on the pullback sleeve rod.

7. A fixing structure of a plug terminal according to claim 6, characterized in that: The heat sensing mechanism comprises a support rod arranged on the fixed substrate, an evaporative liquid arranged in the support rod, a piston rod inserted in the support rod, a stop plate arranged on the piston rod, a positioning groove and a release groove provided on the stop plate.

8. A fixing structure of a plug terminal according to claim 7, characterized in that: The connecting mechanism includes a shell arranged on the fixed terminal or the movable terminal, a pressing groove arranged on the shell, a pressing plate guide rod inserted in the pressing groove, a pressing plate arranged on the pressing plate guide rod, a fixing spring arranged between the pressing plate and the pressing groove, and a fixing rod arranged on the pressing plate. When the pressing plate is pressed into the pressing groove, the fixed terminal is inserted into the fixed tube body or the movable terminal is inserted into the movable tube body. The pressing plate is released so that the fixing spring inserts the fixing rod into the fixing hole one or the fixing hole two, and the fixed terminal is fixed in the fixed tube body, and the movable terminal is fixed in the movable tube body.

9. A fixing structure of a plug terminal according to claim 8, characterized in that: The movable terminal is rotated so that the rotating surrounding edge pushes the trigger plate to move, so that the hook plate is disengaged from the clamping sleeve rod, and the outward spring pushes the clamping sleeve rod to be inserted into the clamping hole, so that the clamping block pushes the fixed terminal and the movable terminal to connect and fix. When the temperature at the contact point between the fixed terminal and the connecting terminal rises above the safe temperature, the evaporative liquid in the support rod that is in contact with the contact point between the fixed terminal and the connecting terminal is evaporated, pushing the piston rod to move, so that the relaxation groove is aligned with the pull-back block, and the contraction spring drives the pull-back block to move and move with the rotating surrounding plate, so that the fixed terminal and the movable terminal are disengaged.

10. A photovoltaic connector fixture, comprising the fixing structure of the plug-in terminal according to any one of claims 1 to 9.

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