Fuse connector assembly

Abstract

The invention relates to a fuse connector assembly, which comprises a fusion tube, a wiring port, a fuse carrier, a limiting baffle plate, a limiting assembly, a limiting piece, a pushing assembly and a handle piece, and can solve the technical problems that the installation position of a fuse is not considered in the prior art, and other circuit elements are usually installed on the periphery of the installation position of the fuse in a matched manner; in order to reduce the situation that the installation spaces are in a close-up state, when the fusible core is burnt out and needs to be replaced, due to the fact that the operation space is narrow, and most of the fusible core is located in the fuse carrier, the fusible core is difficult to take out and can be dug out only by being continuously pulled outwards by personnel, and efficiency is low. And as the periphery of the fusible core is in a circuit fault condition at the moment, personnel safety problems and the like can be caused by long-time staying.

Description

Technical Field

[0001] The present invention relates to the technical field related to fuses, and in particular to a fuse connector assembly. Background Art

[0002] A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the heat generated by itself will melt the fuse and disconnect the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, they are one of the most commonly used protection devices.

[0003] The existing fuse structure, such as the Chinese patent with publication number CN205159264U, discloses a fuse base, including a base shell, a U-shaped metal pressing sheet and a fixing seat, the upper end of the inner cavity of the base shell is provided with a fuse carrier, the bottom of the base shell is provided with a mounting rail and a spring, the fuse carrier is divided into an upper part and a lower part, and a cavity for holding the fuse is formed between the upper part and the lower part of the fuse carrier, through holes are provided on the upper part and the fixing seat of the fuse carrier, and rivets for fixing are provided in the through holes, the bottom end of the upper part of the fuse carrier is provided with two metal sheets for connecting the two poles of the fuse, and the top of the upper part of the fuse carrier is provided with a warning light connected to the two metal sheets, and a plastic guard plate for limiting the position of the fuse is also provided between the upper part and the lower part of the fuse carrier, and the two poles of the fuse are respectively clamped with two U-shaped springs. The fuse base is firmly connected to the wire, which is convenient for the installation and removal of the wire and will not cause unnecessary trouble to the user.

[0004] In the above technology, the main consideration is whether the connection between the fuse and the wire is firm, but the installation position of the fuse is not taken into consideration. Since other circuit components are usually installed around the installation position of the fuse, and in order to reduce the installation space, they are in a close proximity to each other. When the fuse core burns out and needs to be replaced, the operating space is relatively narrow and most of the fuse core is inside the fuse carrier, which makes it difficult to remove the fuse core. The personnel need to continuously pull it outward to remove it, which is inefficient. In addition, since the area around the fuse core is in a circuit fault state at this time, staying for a long time may cause personnel safety problems.

[0005] Based on this, there is still room for improvement on existing technologies. Summary of the invention

[0006] The object of the present invention is to provide a fuse connector assembly to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A fuse connector assembly comprises a fuse tube, of which the upper and lower ends are symmetrically provided with wiring ports; a fuse carrier, which is connected to the middle of the fuse tube through a pin shaft, and the left and right ends of the fuse carrier are symmetrically provided with limit baffles, and the fuse core is loaded and placed through the fuse carrier and the limit baffle; a limit assembly, which is arranged in the middle of the limit baffle, and the inner end of the limit assembly with a locking function is connected to the limit assembly, and the squeezed limit assembly drives the limit assembly to wrap and clamp the fuse core; a push assembly, which is installed at the outer side wall of the fuse tube, and a handle is connected between the push assemblies; The pushing assembly includes an insulating shell, in which a guide assembly is slidably arranged at the insulating shell installed at the outer wall of the melting tube, the guide assembly and the guide rail in the inner wall of the insulating shell are connected in a guiding sliding manner, a pushing head is installed at the front end of the guide assembly, and the position between the insulating shell and the pushing head is temporarily locked by a locking assembly, a rotating shaft is rotatably arranged in a movable groove opened at the front end of the pushing head, the inner end of the rotating shaft is connected to the locking assembly, and the rotating shaft is fixedly connected to the lower end of the handle member.

[0008] As a preferred technical solution of the present invention, the limit assembly includes a movable block, which is set to slide forward and backward in a movable groove opened by the limit baffle, a movable column is set to slide left and right in the sliding groove opened by the movable block, and a clamping block is installed at the outer end of the movable column; a clamping joint, which is installed at the rear end of the movable column, and the clamping joint is clamped in the clamping groove opened by the limit baffle, the clamping joint and the clamping groove are elastically connected, and the position between the clamping joint and the limit baffle is temporarily locked by a locking unit.

[0009] As a preferred technical solution of the present invention, the locking unit includes an extrusion block 1, which is slidably arranged in a hidden groove opened by the card joint, and the extrusion block 1 and the hidden groove are elastically connected, and the rear end inclined surface of the extrusion block 1 is a structure that gradually tilts downward from the inside to the outside; an extrusion block 2, which is laterally slidably arranged in a working groove opened by a limit baffle, and the U-shaped extrusion block 2 is used in conjunction with the extrusion block 1 for extrusion.

[0010] As a preferred technical solution of the present invention, the guide assembly includes a sliding block, which is slidably arranged in an insulating shell forward and backward, a connecting groove is opened at the front end of the sliding block, a protruding piece is slidably arranged in the connecting groove left and right, and a pushing head is installed at the front end of the protruding piece; a guide piece, a sliding roller arranged at the inner end of which is slidably arranged in a guide groove opened in the guide rail.

[0011] As a preferred technical solution of the present invention, the rear end of the sliding block is connected to the magnetic layer provided in the insulating shell by magnetic attraction.

[0012] As a preferred technical solution of the present invention, the front end of the guide groove is an inclined groove structure, and the inclined groove structure is a structure that gradually tilts outward from back to front.

[0013] As a preferred technical solution of the present invention, the locking assembly includes an extension rod, whose rear end is installed at the front end of the insulating shell, and a clamping column is installed at the outer wall position of the extension rod; a clamping disc, which is coaxially installed at the inner end position of the rotating shaft, and the arc groove opened in the clamping disc is clamped and used with the clamping column, and the lower end of the arc groove is an open structure.

[0014] As a preferred technical solution of the present invention, a torque spring is sleeved on the inner side of the rotating shaft, one end of the torque spring is connected to the pushing head, and the other end of the torque spring is connected to the rotating shaft.

[0015] As a preferred technical solution of the present invention, the inner inclined surface of the front end of the pushing head is gradually inclined outward from back to front, and a pushing groove is provided on the inner side surface of the pushing head, and the position of the pushing groove corresponds to that of the clamping block.

[0016] As a preferred technical solution of the present invention, an inner wall of the melting tube is provided with an extrusion groove of an arc structure, and the position of the extrusion groove corresponds to the position between the movable columns, and the thickness of the extrusion groove gradually increases from front to back.

[0017] In summary, this application includes the following beneficial technical effects: A fuse connector assembly of the present invention, when a damaged fuse needs to be replaced, after the handle piece is pulled to a specified angle, the position between the push head and the insulating shell is unlocked, and then the handle piece is pulled forward, and the synchronous pushing head unlocks the position of the movable block under the action of the extrusion force and squeezes the movable column inward so that the limit piece clamps the fuse core. As the pushing head moves further forward, the fuse core moves forward with the movable block under the state of being clamped by the limit piece, so that the fuse core is in a state of moving forward relative to the fuse carrier position. When most of the fuse core is exposed, the limit piece does not clamp it. At this time, the fuse core can be quickly taken out for replacement. The present application clamps the fuse core in a narrow space and takes it out separately, so that it can be quickly taken out at the fault position to avoid personal safety issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a first structural schematic diagram of the present invention; Figure 2 is a second structural schematic diagram of the present invention; Figure 3 It is a right side view of the present invention; Figure 4 The present invention Figure 3 AA section view; Figure 5 It is a schematic diagram of the structure between the limit baffle, the limit assembly, the limit member, and the pushing assembly of the present invention; Figure 6It is a partial cross-sectional view of the limiting baffle, limiting assembly, limiting member, and pushing assembly of the present invention; Figure 7 It is a schematic diagram of the structure between the rotating shaft, the clamping column and the clamping disc of the present invention; Figure 8 The present invention Figure 4 A local enlarged view of point X; Fig. 9 The present invention Figure 4 A local enlarged view of the Y position; Fig.10 The present invention Figure 6 A local enlarged view of the Z position; Fig.11 The present invention Figure 6 A partial enlarged view of point B.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. melting tube; 2. wiring port; 3. melting member; 4. limiting baffle; 5. limiting assembly; 6. limiting member; 7. pushing assembly; 8. handle member; 51. movable block; 52. movable column; 53. snap-fit ​​block; 54. snap-fit ​​joint; 55. locking unit; 71. insulating shell; 72. guide assembly; 73. guide rail; 74. pushing head; 75. locking assembly; 76. rotating shaft; 551. extrusion block one; 552. extrusion block two; 721. sliding block; 722. extending member; 723. guide member; 741. pushing groove; 751. extending rod; 752. snap-fit ​​column; 753. snap-fit ​​disc; 761. torque spring. DETAILED DESCRIPTION

[0020] The following is combined with Figures 1 to 11 This application is described in further detail.

[0021] An embodiment of the present application discloses a fuse connector assembly, which can pull and clamp a fuse core that is difficult to quickly remove in a narrow space, so that it can be quickly removed at the fault location to avoid personal safety issues.

[0022] Reference Figures 1 to 4 As shown, a fuse connector assembly disclosed in this embodiment includes a fuse tube 1, a wiring port 2, a fuse carrier 3, a limit baffle 4, a limit assembly 5, a limit member 6, a pushing assembly 7, and a handle member 8. The fuse tube 1 is a fixed base, and the wiring ports 2 are symmetrically installed at the upper and lower ends of the fuse tube 1. The fuse carrier 3 is connected to the middle of the fuse tube 1 through a pin shaft, and the limit baffles 4 are symmetrically installed at the left and right ends of the fuse carrier 3. The fuse core is loaded and placed through the fuse carrier 3 and the limit baffle 4. The limit assembly 5 is arranged in the middle of the limit baffle 4, and the inner end of the limit assembly 5 with a locking function is connected to the limit member 6. The squeezed limit assembly 5 drives the limit member 6 to wrap and clamp the fuse core. The pushing assembly 7 is installed on the outer wall of the fuse tube 1, and a handle member 8 is connected between the pushing assemblies 7.

[0023] Reference Figure 5 , Figure 6 , Figure 8 As shown, the pushing component 7 includes an insulating shell 71, a guide component 72, a guide rail 73, a pushing head 74, a locking component 75, and a rotating shaft 76. The guide component 72 is slidably arranged in the insulating shell 71 installed on the outer wall of the melting tube 1. The guide component 72 and the guide rail 73 in the inner wall of the insulating shell 71 are connected in a guided sliding manner. A pushing head 74 is installed at the front end of the guide component 72. The position between the insulating shell 71 and the pushing head 74 is temporarily locked by the locking component 75. A rotating shaft 76 is rotatably arranged in a movable groove opened at the front end of the pushing head 74. The inner end of the rotating shaft 76 is connected to the locking component 75, and the rotating shaft 76 is fixedly connected to the lower end of the handle member 8.

[0024] In the actual operation process, the terminal of the external wire is connected to the wiring port 2, and the fuse carrier 3 is pressed at an angle to connect the fuse core to the wiring port 2 (during this period, the limit component 5 is squeezed and drives the limit component 6 to clamp the placed fuse core). The fuse structure in the present application is used to protect the circuit from short-circuit faults or overcurrents. When the current exceeds the specified value, the heat generated by itself causes the fuse core to melt, thereby disconnecting the circuit, and then the fuse core is replaced. The specific steps are as follows: the fuse carrier 3 is turned out at an angle, and then the handle 8 is pulled forward to a specified angle, and the locking component 75 is unlocked. At this time, the push head 74 and the insulating shell 71 are pushed. The position between the fuses is unlocked, and the handle 8 is pulled forward. The limit assembly 5 is squeezed by the push head 74 so that it is unlocked from the position of the limit baffle 4 and then moves forward. During the forward movement, the limit baffle 4 drives the limit member 6 to clamp the fuse core so that it can be pulled out from the fuse carrier 3 alone. When the handle 8 is pulled to the frontmost position, most of the fuse core has been pulled out. At this time, the push head 74 is moved outward with the cooperation of the guide assembly 72 and the guide rail 73 so that the limit member 6 no longer clamps the fuse core. At this time, the personnel can quickly take out the fuse core that is exposed most of the time. The present application can quickly extract the fuse core in the fuse installed in a narrow space, thereby improving the replacement efficiency.

[0025] Reference Figure 2 , Figure 5 , Figure 8 , Fig.10As shown, in order to ensure that the limit member 6 can be internally pressurized to clamp the fusible core, the limit assembly 5 includes a movable block 51, a movable column 52, a clamping block 53, a clamping joint 54, and a locking unit 55. The movable block 51 is set to slide forward and backward in the movable groove opened by the limit baffle 4, and the movable column 52 is set to slide left and right in the sliding groove opened by the movable block 51. The outer end of the movable column 52 is installed with a clamping block 53, and the clamping joint 54 is installed at the rear end of the movable column 52. The clamping joint 54 is clamped in the clamping groove opened by the limit baffle 4. The clamping joint 54 and the clamping groove are elastically connected, and the position between the clamping joint 54 and the limit baffle 4 is temporarily locked by the locking unit 55; the inner side wall of the melting tube 1 is provided with an extrusion groove 8 with an arc structure, and the position of the extrusion groove 8 corresponds to that between the movable column 52, and the thickness of the extrusion groove 8 gradually increases from front to back.

[0026] In the actual operation process, after the new fusible core is placed into the fuse carrier 3, the fuse carrier 3 is turned over at an angle so as to be closed with the fuse tube 1. At this time, the fuse carrier 3 rotates along the rotation point as a whole. During the rotation process, the movable column 52 enters the extrusion groove 8. As the thickness of the extrusion groove 8 gradually increases from front to back, the movable column 52 and the clamping block 53 are squeezed inwardly, so that the limiting member 6 quickly clamps the fusible core in place (because the locking unit 55 is not triggered, the position between the movable block 51 and the limiting baffle 4 is in a locked state at this time), and the fusible core needs to be replaced and taken out later. , the locking unit 55 is unlocked by squeezing the locking unit 55 by the pushing head 74 in the pushing assembly 7. At this time, the position between the movable block 51 and the limit baffle 4 is unlocked. Subsequently, the limit member 6 quickly clamps the fusible core under the squeezing of the movable column 52 by the pushing head 74. At this time, the fusible core is clamped by the limit member 6 again, and the unlocked movable block 51 moves forward in the movable groove. The clamped fusible core moves forward alone (the position of the fuse carrier 3 remains unchanged). The position between the movable block 51 and the limit baffle 4 in this application is unlocked according to actual conditions. Or locked, the new fusible core is flipped to the specified position when the fuse carrier 3 is turned over (the movable block 51 does not need to be unlocked, and the fusible core only needs to be clamped in the fuse carrier 3). At this time, the movement mode of the fuse carrier 3 is rotation, and the locking unit 55 of synchronous movement is not triggered by contact with any structure. The locking unit 55 is in a locked state, but the movable column 52 and the clamping block 53 will enter the extrusion groove 8, and under the extrusion action, the limiter 6 is driven to clamp the fusible core in the fuse carrier 3. When the fusible core in the fuse carrier 3 needs to be replaced, the fusible core needs to be taken out at this time. The steps are as follows: flip the fuse carrier 3 to At the angle to be inserted, the movable column 52 and the clamping block 53 are separated from the extrusion groove 8, and then the push head 74 is driven forward by the forward traction of the handle 8. The moving push head 74 successively unlocks the locking unit 55 (at this time, the position between the movable block 51 and the limit baffle 4 is unlocked) and squeezes the movable column 52 to move inward so that the limit member 6 clamps the fuse core. As the push head 74 moves forward further, the unlocked movable block 51 moves forward alone through the clamping state of the limit member 6 until most of the fuse core is exposed, thereby facilitating quick removal.

[0027] Reference Figure 5 , Figure 8 , Fig.10 As shown, the present application further designs the structure of the locking unit 55, and the locking unit 55 includes an extrusion block 1 551 and an extrusion block 2 552. The extrusion block 1 551 is slidably set in a hidden groove opened in the card joint 54, and the extrusion block 1 551 and the hidden groove are elastically connected. The rear end inclined surface of the extrusion block 1 551 is a structure that gradually tilts downward from the inside to the outside, and the extrusion block 2 552 is horizontally slidably set in the working groove opened in the limit baffle 4. The U-shaped extrusion block 2 552 and the extrusion block 1 551 are used for extrusion cooperation.

[0028] When the fuse carrier 3 rotates and closes, the locking unit 55 will not come into contact with any structure. At this time, the positions of the extrusion block 1 551 and the extrusion block 2 552 remain unchanged. Under the action of elasticity, the outer half of the extrusion block 1 551 is inserted into the working groove, so that the clamping joint 54 and the limit baffle 4 are locked in position through the lateral insertion of the extrusion block 1 551. At this time, the position between the movable block 51 and the limit baffle 4 is locked. When the fuse carrier 3 remains in place (the state of the fusible core to be put in or taken out), the forward pushing head 74 squeezes the extrusion block 2 552, so that the extrusion block 2 552 squeezes the extrusion block 1 551 until it is completely retracted into the hidden groove. At this time, the position between the movable block 51 and the limit baffle 4 is unlocked, and then the pushing head 74 squeezes the outer side of the movable column 52 so that the limit member 6 clamps the fusible core.

[0029] Reference Figure 6 , Figures 8 to 9 As shown, the guide assembly 72 provided in the present application drives the push head 74 to perform a straight line motion first and then a straight line inclined outwardly oblique motion, and the specific structure is as follows: the guide assembly 72 includes a sliding block 721, a protruding piece 722, and a guide piece 723. The sliding block 721 is set in the insulating shell 71 for sliding back and forth, and a connecting groove is provided at the front end of the sliding block 721. A protruding piece 722 is provided in the connecting groove for sliding left and right. The push head 74 is installed at the front end of the protruding piece 722, and a sliding roller provided at the inner end of the guide piece 723 is slidably provided in the guide groove provided in the guide rail 73; the rear end of the sliding block 721 is magnetically attracted to the magnetic layer provided in the insulating shell 71, and the magnetic setting ensures that the sliding block 721 is in a magnetic connection when it is not pulled forward, thereby avoiding the situation where the guide assembly 72 is exposed prematurely; the front end of the guide groove is an oblique groove structure, and the oblique groove structure is a structure that gradually tilts outward from back to front.

[0030] In the actual operation process, according to the trajectory of the guide groove, in the early and middle stages, the guide member 723 drives the protruding member 722 and the sliding block 721 to move forward in a straight line synchronously. In the later stage, the guide member 723 cooperates with the inclined groove structure to drive the protruding member 722 to move forward while moving outward in the sliding block 721 (the sliding block 721 continues to maintain linear motion), thereby showing an oblique motion. The design of this trajectory ensures that the pushing head 74 of the later movement no longer squeezes the movable column 52. At this time, the limit member 6 no longer clamps the fusible core that has been exposed for most of its body, and the personnel can take out the fusible core more easily (although the limit member 6 does not clamp the fusible core, the resistance between the walls of the two is still there, and the fusible core will not retreat).

[0031] Reference Figure 7 , Figure 8 , Fig.11As shown, the push head 74 is locked in position with the insulating shell 71 by the locking assembly 75 when not in use, thereby improving the connection stability of the overall structure. The specific structure of the locking assembly 75 is as follows: the locking assembly 75 includes an extension rod 751, a clamping column 752, and a clamping disc 753. The rear end of the extension rod 751 is installed at the front end of the insulating shell 71, and the clamping column 752 is installed at the outer wall position of the extension rod 751. The clamping disc 753 is coaxially installed at the inner end position of the rotating shaft 76. The arc groove opened in the clamping disc 753 is clamped and used in cooperation with the clamping column 752, and the lower end of the arc groove is an open structure.

[0032] At the initial angle, the clamping column 752 is not aligned with the position of the opening structure of the arc groove, so that a clamping effect is formed between the clamping column 752 and the arc groove, and the pushing head 74 cannot move forward. When the handle 8 rotates forward to the specified position, the synchronously rotating shaft 76 drives the clamping disc 753 to rotate. At this time, the clamping column 752 is aligned with the position of the opening structure of the arc groove, and the pushing head 74 can move forward.

[0033] Reference Fig.11 As shown, a torque spring 761 is sleeved on the inner side of the rotating shaft 76 , and the torque spring 761 plays a role of elastic reset on the angle of the rotating shaft 76 . One end of the torque spring 761 is connected to the push head 74 , and the other end of the torque spring 761 is connected to the rotating shaft 76 .

[0034] Reference Fig.11 As shown, the inner inclined surface of the front end of the pushing head 74 is a structure that gradually tilts outward from back to front, and a pushing groove 741 is provided on the inner side surface of the pushing head 74, and the position of the pushing groove 741 corresponds to the position of the clamping block 53. When the pushing groove 741 and the clamping block 53 are clamped during the forward movement of the pushing head 74, the two move synchronously. At this time, the inclined surface of the pushing head 74 has also squeezed the movable column 52 to the inner position, thereby clamping the fuse and moving forward alone.

[0035] Working principle: Step 1: Connect the terminal of the external wire to the wiring port 2, press the fuse 3 so that the fuse core is embedded and connected to the wiring port 2, so as to transmit current; Step 2: The short circuit fault or overcurrent of the circuit is protected by the fuse structure in the present application. When the current exceeds the specified value, the heat generated by the fuse itself melts the fuse core, thereby disconnecting the circuit, and then the fuse core is replaced. The specific steps are as follows; The lock member 75 is unlocked when the handle 8 is pulled forward to unlock the locking assembly 75. The locking assembly 75 is unlocked when the push head 74 is pulled forward to unlock the position of the movable block 51 and the limit baffle 4. The push head 74 squeezes the movable column 52 inward to clamp the fuse. During the synchronous forward movement of the push head 74 and the movable block 51, the limit baffle 4 drives the limit member 6 to clamp the fuse so that it is pulled out of the fuse carrier 3 alone. When the handle 8 is pulled to the frontmost position, most of the fuse has been pulled out. At this time, the push head 74 moves outward with the cooperation of the guide assembly 72 and the guide rail 73 so that the limit member 6 no longer clamps the fuse. At this time, the personnel can quickly take out the fuse that is exposed most of the way. Step three: put the new fuse into the fuse carrier 3 and reconnect the circuit.

[0036] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fuse connector assembly, characterized in that: include: The fusion tube (1) has connection ports (2) symmetrically mounted at the upper and lower ends thereof; A melt carrier (3) is connected to the middle of the melt tube (1) via a pin shaft, and limit baffles (4) are symmetrically installed at the left and right ends of the melt carrier (3), and the melt core is loaded and placed via the melt carrier (3) and the limit baffles (4); A limiting assembly (5) is arranged in the middle of the limiting baffle (4); the inner end of the limiting assembly (5) having a locking function is connected to the limiting member (6); the limiting assembly (5) being squeezed drives the limiting member (6) to wrap and clamp the fusible core; A pushing assembly (7) is installed on the outer wall of the melting tube (1), and a handle (8) is connected between the pushing assembly (7); The pushing assembly (7) comprises an insulating shell (71), a guide assembly (72) is slidably arranged in the insulating shell (71) installed at the outer wall position of the melting tube (1), the guide assembly (72) and the guide rail (73) in the inner wall of the insulating shell (71) are connected in a guiding sliding manner, a pushing head (74) is installed at the front end of the guiding assembly (72), the position between the insulating shell (71) and the pushing head (74) is temporarily locked by a locking assembly (75), a rotating shaft (76) is rotatably arranged in a movable groove opened at the front end of the pushing head (74), the inner end of the rotating shaft (76) is connected to the locking assembly (75), and the rotating shaft (76) is fixedly connected to the lower end of the handle member (8).

2. A fuse connector assembly according to claim 1, characterized in that: The limiting component (5) comprises: A movable block (51) is slidably arranged in a movable groove provided in the limit baffle (4) in a forward and backward manner, a movable column (52) is slidably arranged in the sliding groove provided in the movable block (51) in a leftward and rightward manner, and a clamping block (53) is installed at the outer end of the movable column (52); A clamping joint (54) is mounted on the rear end of the movable column (52). The clamping joint (54) is clamped in a clamping groove formed in the limit baffle (4). The clamping joint (54) and the clamping groove are elastically connected, and the position between the clamping joint (54) and the limit baffle (4) is temporarily locked by a locking unit (55).

3. A fuse connector assembly according to claim 2, characterized in that: The locking unit (55) comprises: The extrusion block (551) is slidably arranged in a hidden groove provided in the card joint (54), and the extrusion block (551) and the hidden groove are elastically connected, and the rear end inclined surface of the extrusion block (551) is a structure that gradually slopes downward from the inside to the outside; The second extrusion block (552) is laterally slidably arranged in a working groove provided in the limit baffle (4), and the second extrusion block (552) of the U-shaped structure is used in conjunction with the first extrusion block (551) for extrusion.

4. A fuse connector assembly according to claim 1, characterized in that: The guide assembly (72) comprises: A sliding block (721) is arranged in the insulating shell (71) for sliding forward and backward, a connecting groove is provided at the front end of the sliding block (721), a protruding piece (722) is arranged in the connecting groove for sliding left and right, and a pushing head (74) is installed at the front end of the protruding piece (722); The guide member (723) has a sliding roller arranged at its inner end which is slidably arranged in a guide groove provided in the guide rail (73).

5. A fuse connector assembly according to claim 4, characterized in that: The rear end of the sliding block (721) is connected to the magnetic layer provided in the insulating shell (71) by magnetic attraction.

6. A fuse connector assembly according to claim 4, characterized in that: The front end of the guide groove is an oblique groove structure, and the oblique groove structure is a structure that gradually tilts outward from the back to the front.

7. A fuse connector assembly according to claim 1, characterized in that: The locking assembly (75) comprises: An insertion rod (751) whose rear end is mounted on the front end of the insulating shell (71), and a clamping column (752) is mounted on the outer side wall of the insertion rod (751); The clamping disc (753) is coaxially mounted at the inner end of the rotating shaft (76). The arc groove provided in the clamping disc (753) is clamped and matched with the clamping column (752) for use, and the lower end of the arc groove is an open structure.

8. A fuse connector assembly according to claim 1, characterized in that: A torque spring (761) is sleeved on the inner side of the rotating shaft (76), one end of the torque spring (761) is connected to the pushing head (74), and the other end of the torque spring (761) is connected to the rotating shaft (76).

9. A fuse connector assembly according to claim 2, characterized in that: The front inner side slope of the pushing head (74) is gradually inclined outward from the back to the front, and a pushing groove (741) is provided on the inner side of the pushing head (74), and the position of the pushing groove (741) corresponds to that of the clamping block (53).

10. A fuse connector assembly according to claim 2, characterized in that: An arc-shaped extrusion groove (8) is provided on the inner side wall of the melting tube (1), and the position of the extrusion groove (8) corresponds to that of the movable column (52), and the thickness of the extrusion groove (8) gradually increases from front to back.

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