A TVS fuse protection structure

Abstract

The present invention discloses a TVS fuse protection structure, which relates to the technical field of electrical components, and includes a fuse for fuse protection arranged on a circuit input wire, wherein the circuit input wire is composed of a first wire and a second wire, and also includes an installation box, wherein the installation box is internally rotatably connected with an installation column, and the fuse is arranged in multiple groups inside the installation box. During the use of the TVS fuse protection structure of the present invention, through the mutual cooperation of the installation assembly, the rotation assembly and the positioning assembly with multiple groups of fuses, when the fuse melts under the action of the breakdown current on the circuit, different fuses are quickly switched to connect and fuse protection, thereby ensuring the continuity of the circuit protection provided by the fuse protection mechanism, and during the process of the fuse providing fuse protection to the circuit, when the length of the identification rod outside the installation box is reduced, it can be identified and judged that the fuse inside the installation box has been fused, which is convenient for accurately judging the use of the fuse on the circuit.

Description

Technical Field

[0001] The invention relates to the technical field of electrical components, in particular to a TVS fuse protection structure. Background Art

[0002] TVS is the abbreviation of transient voltage suppressor, also known as transient suppression diode or avalanche diode. It is a high-efficiency protection device in the form of a diode. When the two poles of the TVS tube are subjected to a reverse transient high-energy impact, it can quickly change the high impedance between the two poles to a low impedance, thereby absorbing up to several kilowatts of surge power and clamping the voltage at both ends at a predetermined voltage value to protect the subsequent circuit components from the impact of transient high-voltage spike pulses.

[0003] The fuse is an auxiliary structure for the fuse protection on the TVS. When the two poles of the TVS are subjected to a reverse high-energy impact, with the emergence of a breakdown current, the current flowing through the TVS will reach a peak pulse current. At this time, the leakage current will pass through the fuse. Due to the small cross-sectional area of ​​the fuse and the increased current density, the fuse will melt rapidly within a certain period of time, cutting off the circuit and protecting the circuit. The melted fuse needs to be replaced and reinstalled, affecting the continuity of the fuse protection mechanism. In addition, when the fuse is in use, in order to improve safety, the outside of the fuse is isolated by an isolation cover, which makes it inconvenient to intuitively identify the use status of the internal fuse. For this reason, we propose a TVS fuse protection structure. Summary of the invention

[0004] The object of the present invention is to provide a TVS fuse protection structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a TVS fuse protection structure, comprising a fuse for fuse protection arranged on a circuit input wire, the circuit input wire is composed of a first wire and a second wire, and also comprises an installation box, the installation box is rotatably connected with an installation column inside, the fuse is arranged in multiple groups inside the installation box, and the multiple groups of fuses are evenly distributed around the installation column, the installation column is provided with an installation component for limiting the installation of the fuse, two groups of first conductive plates are arranged inside the installation box, one end of the first conductive wire and the second conductive wire is located inside the installation box and is respectively electrically connected to the two groups of first conductive plates by welding, the installation box is provided with a first elastic component for elastically connecting the first conductive plates, the installation box is provided with a rotating component for rotating the installation column, and the fuse fixed on different installation components is switched to abut against the two groups of first conductive plates by rotating the installation column, the installation box is provided with a positioning component for abutting positioning during the rotation switching connection of the fuse, and the installation box is provided with an identification component for identifying the state of the fuse after connection and use;

[0006] The mounting assembly includes two groups of mounting frames fixed on the outside of the mounting column, and the two groups of mounting frames are fixed with second conductive plates for abutting against the two ends of the melt. The front side of the mounting frame is provided with a pressure plate for limiting the extrusion of the melt after the abutment connection, and a second elastic force component for pulling the pressure plate is provided between the mounting frame and the pressure plate.

[0007] Preferably, the second elastic component includes two groups of second sleeves fixed on the side of the pressure plate close to the mounting frame, the second sleeve is slidably connected with a second slide rod, one end of the second slide rod is fixed to the mounting frame, and the outer side of the second sleeve is sleeved with a second spring, and the two ends of the second spring are respectively connected to the mounting frame and the pressure plate.

[0008] Preferably, the first elastic component includes two groups of first sleeves fixed inside the installation box, a first slide rod is slidably connected to the first sleeve, one end of the first slide rod is fixed to the back side of the first conductive plate, and a first spring is sleeved on the outer side of the two groups of first sleeves, and both ends of the first spring are respectively connected to the inner wall of the installation box and the first conductive plate.

[0009] Preferably, both sides of the first conductive plate are provided with first inclined surfaces for abutting against one side of the second conductive plate during the rotation of the mounting column.

[0010] Preferably, the positioning assembly includes a V-shaped groove opened on the side of the pressure plate away from the mounting frame, the interior of the mounting box is provided with a positioning plate for abutting against the V-shaped groove, the interior of the mounting box is provided with a third elastic assembly for elastically connecting the positioning plate, and the two sides of the positioning plate are provided with second inclined surfaces for abutting against one side of the pressure plate for transmission.

[0011] Preferably, the third elastic force component includes multiple groups of third sleeves fixed inside the installation box, each group of the third sleeves is slidably connected with a third sliding rod, one end of the third sliding rod is fixed to one side of the positioning plate, and the outer side of the third sleeve is sleeved with a third spring, and both ends of the third spring are respectively connected to the inner wall of the installation box and the positioning plate.

[0012] Preferably, the identification component includes an opening formed on the installation box, an identification rod being slidably connected to the opening, a side wall of the identification rod located outside the installation box being provided with scale lines for identifying the length of the identification rod outside the installation box, and a transmission component for transmitting the identification rod is provided inside the installation box.

[0013] Preferably, the transmission assembly includes a support frame fixed inside the installation box, the support frame is rotatably connected to a transmission plate via a pin shaft, a first transmission groove is opened on the transmission plate, a first transmission pin is slidably connected to the first transmission groove, one end of the first transmission pin is fixed to the identification rod, and a pushing assembly for pushing the transmission plate is provided on the positioning plate.

[0014] Preferably, the pushing assembly includes a fixed frame fixed on the positioning plate, a second transmission groove is opened on the transmission plate, a second transmission pin is slidably connected to the second transmission groove, one end of the second transmission pin is fixed to the fixed frame, and the distance between the second transmission pin and the first transmission pin is several times the distance between the second transmission pin and the pin shaft.

[0015] Preferably, the rotating assembly includes a driving shaft rotatably connected to the mounting box, one end of the driving shaft is fixed to the upper end of the mounting column, and the other end of the driving shaft is located outside the mounting box and is fixed with a driving pin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] During the use of the TVS fuse protection structure of the present invention, through the mutual cooperation of the installation component, the rotating component and the positioning group component with multiple groups of fuses, when the fuse melts under the action of the breakdown current in the circuit, different fuses are quickly switched to connect and perform fuse protection, thereby ensuring the continuity of the circuit protection by the fuse protection mechanism. In addition, during the process of the fuse performing fuse protection on the circuit, when the length of the identification rod outside the installation box is reduced, it can be identified and determined that the fuse inside the installation box has been blown, thereby facilitating accurate judgment of the use of the fuse in the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the outer structure of the installation box of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the installation box of the present invention;

[0021] Figure 4 It is a schematic diagram of the position relationship between the melt and the mounting column of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the melt and the second conductive plate of the present invention;

[0024] Figure 7It is a schematic structural diagram of the first elastic component and the first conductive plate of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the installation component and the second elastic component of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the positioning component and the third elastic component of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the transmission assembly and the driving assembly of the present invention;

[0028] Fig.11 Schematic diagram of the identification component structure of the present invention

[0029] Fig.12 It is a schematic diagram of the first conductive plate and the second conductive plate in contact with each other according to the present invention.

[0030] In the figure: 1, melt; 201, first wire; 202, second wire; 3, mounting box; 4, mounting column; 501, mounting frame; 502, second conductive plate; 503, pressing plate; 601, second sleeve; 602, second slide bar; 603, second spring; 7, first conductive plate; 801, first sleeve; 802, first slide bar; 803, first spring; 9, first inclined surface; 1001, V-shaped groove; 1002, positioning plate; 1003, first two inclined surfaces; 1101, opening; 1102, identification rod; 1103, scale line; 1201, support frame; 1202, pin shaft; 1203, transmission plate; 1204, first transmission groove; 1205, first transmission pin; 1301, fixing frame; 1302, second transmission groove; 1303, second transmission pin; 1401, driving shaft; 1402, driving pin; 1501, third sleeve; 1502, third slide rod; 1503, third spring. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1: Please refer to Figure 1-Figure 12A TVS fuse protection structure shown in the figure includes a fuse 1 for fuse protection arranged on a circuit input wire, the circuit input wire is composed of a first wire 201 and a second wire 202, and also includes an installation box 3, the interior of the installation box 3 is rotatably connected with a mounting column 4, a plurality of groups of fuses 1 are arranged inside the installation box 3, and the plurality of groups of fuses 1 are evenly distributed around the mounting column 4, and a mounting assembly for the installation limit of the fuse 1 is arranged on the mounting column 4, two groups of first conductive plates 7 are arranged inside the installation box 3, one end of the first wire 201 and the second wire 202 Located inside the installation box 3 and electrically connected to the two groups of first conductive plates 7 by welding, the installation box 3 is provided with a first elastic component for elastically connecting the first conductive plates 7, the installation box 3 is provided with a rotating component for rotating the installation column 4, and the melt 1 fixed on different installation components is switched to abut against the two groups of first conductive plates 7 by rotating the installation column 4, the installation box 3 is provided with a positioning component for abutting and positioning during the rotation and switching of the melt 1, and the installation box 3 is provided with an identification component for identifying the state of the melt 1 after connection and use;

[0033] The mounting assembly includes two sets of mounting frames 501 fixed on the outside of the mounting column 4, and the two sets of mounting frames 501 are fixed with second conductive plates 502 for abutting against the two ends of the melt 1, and the front side of the mounting frames 501 is provided with a pressing plate 503 for squeezing and limiting the melt 1 after the abutment connection, and a second elastic component for pulling the pressing plate 503 is provided between the mounting frames 501 and the pressing plate 503;

[0034] It should be noted here that: during the installation of the melt 1, the pressure plates 503 on the front sides of the two sets of mounting frames 501 are pulled away from the mounting frames 501. After the pulling is completed, the melt 1 is placed between the mounting frame 501 and the pressure plates 503, and the two ends of the melt 1 are respectively against the second conductive plates 502 on the two sets of mounting frames 501. After the melt 1 is placed, the pulling of the two sets of pressure plates 503 is released, and the two sets of pressure plates 503 are reset under the elastic force of the second elastic force component and are against the melt 1. Through the counteraction of the two sets of pressure plates 503, the melt 1 is installed and fixed between the mounting frame 501 and the pressure plates 503, and the two ends of the melt 1 are respectively against the two sets of second conductive plates 502.

[0035] It is worth noting here that during the use of the TVS fuse protection structure, through the mutual cooperation of the installation assembly, the rotating assembly and the positioning assembly with multiple groups of fuses 1, when the fuse 1 melts under the action of the breakdown current in the circuit, different fuses 1 are quickly switched to connect and fuse protection, thereby ensuring the continuity of the circuit protection by the fuse protection mechanism, and in the process of the fuse 1 performing fuse protection on the circuit, when the length of the identification rod 1102 outside the installation box 3 is reduced, it can be identified and determined that the fuse 1 inside the installation box 3 has been blown, thereby facilitating accurate judgment of the usage of the fuse 1 in the circuit.

[0036] Preferably, the second elastic component includes two groups of second sleeves 601 fixed on the side of the pressure plate 503 close to the mounting frame 501, the second sleeve 601 is slidably connected with a second slide bar 602, one end of the second slide bar 602 is fixed to the mounting frame 501, and the outer side of the second sleeve 601 is sleeved with a second spring 603, and the two ends of the second spring 603 are respectively connected to the mounting frame 501 and the pressure plate 503;

[0037] It should be noted here that the movement of the pressing plate 503 is guided by the interaction between the second sleeve 601 and the second slide bar 602 , and the second spring 603 is used to facilitate pulling the pressing plate 503 to reset after the movement.

[0038] Preferably, the first elastic component includes two groups of first sleeves 801 fixed inside the installation box 3, and the first sleeves 801 are slidably connected with a first slide bar 802, one end of the first slide bar 802 is fixed to the back of the first conductive plate 7, and the outer sides of the two groups of first sleeves 801 are sleeved with a first spring 803, and the two ends of the first spring 803 are respectively connected to the inner wall of the installation box 3 and the first conductive plate 7;

[0039] It should be noted here that: the telescopic movement of the first conductive plate 7 is guided by the interaction between the first sleeve 801 and the first slide rod 802, and the first spring 803 facilitates the retracted first conductive plate 7 to be pushed to reset.

[0040] Preferably, first inclined surfaces 9 are provided on both sides of the first conductive plate 7 for abutting against one side of the second conductive plate 502 during the rotation of the mounting column 4;

[0041] It should be noted here that: the first inclined surface 9 facilitates the first conductive plate 7 and the second conductive plate 502 to abut against each other and perform a contraction movement.

[0042] Preferably, the positioning assembly includes a V-shaped groove 1001 provided on the side of the pressing plate 503 away from the mounting frame 501, a positioning plate 1002 for abutting against the V-shaped groove 1001 is provided inside the mounting box 3, a third elastic assembly for elastically connecting the positioning plate 1002 is provided inside the mounting box 3, and second inclined surfaces 1003 for abutting against one side of the pressing plate 503 are provided on both sides of the positioning plate 1002;

[0043] It should be noted here that: when the circuit between the melt 1 and the first wire 201 and the second wire 202 is connected by rotating the mounting post 4, as the mounting post 4 rotates, one side of the pressure plate 503 on the mounting assembly is abutted against the second inclined surface 1003 on the positioning plate 1002. During the abutment process, the positioning plate 1002 is pushed to shrink toward the inner wall of the mounting box 3. As the mounting post 4 continues to rotate, when the V-groove 1001 on the pressure plate 503 is at the front side of the positioning plate 1002, the elastic force of the third elastic component on the contracted positioning plate 1002 causes the front end of the positioning plate 1002 to be inserted into the V-groove 1001 on the back side of the pressure plate 503. Through the abutment between the V-groove 1001 and the positioning plate 1002, the melt 1 after the circuit is connected is squeezed and positioned.

[0044] Preferably, the third elastic component includes a plurality of groups of third sleeves 1501 fixed inside the installation box 3, each group of third sleeves 1501 is slidably connected with a third slide bar 1502, one end of the third slide bar 1502 is fixed to one side of the positioning plate 1002, and a third spring 1503 is sleeved on the outer side of the third sleeve 1501, and the two ends of the third spring 1503 are respectively connected to the inner wall of the installation box 3 and the positioning plate 1002;

[0045] It should be noted here that: the telescopic movement of the positioning plate 1002 is guided by the third sleeve 1501 and the third slide rod 1502, and the third spring 1503 is used to facilitate the positioning plate 1002 to be pushed back after contraction.

[0046] Preferably, the identification component includes an opening 1101 formed on the installation box 3, an identification rod 1102 is slidably connected to the opening 1101, a scale line 1103 for identifying the length of the identification rod 1102 outside the installation box 3 is provided on the side wall of the identification rod 1102 located outside the installation box 3, and a transmission component for transmitting the identification rod 1102 is provided inside the installation box 3;

[0047] It should be noted here that: during the movement of the positioning plate 1002, the identification rod 1102 is pulled toward the interior of the installation box 3 by pushing the assembly and the transmission assembly. During the movement of the identification rod 1102 toward the interior of the installation box 3, the length of the identification rod 1102 outside the installation box 3 is reduced. Therefore, during the process of the fuse 1 protecting the circuit from blowing, when the length of the identification rod 1102 outside the installation box 3 is reduced, it is identified and determined that the fuse 1 inside the installation box 3 has blown, which is convenient for accurate judgment of the usage of the fuse 1 on the circuit.

[0048] Preferably, the transmission assembly includes a support frame 1201 fixed inside the installation box 3, the support frame 1201 is rotatably connected to a transmission plate 1203 through a pin shaft 1202, a first transmission groove 1204 is provided on the transmission plate 1203, a first transmission pin 1205 is slidably connected to the first transmission groove 1204, one end of the first transmission pin 1205 is fixed to the identification rod 1102, and a pushing assembly for pushing the transmission plate 1203 is provided on the positioning plate 1002;

[0049] It should be noted here that: during the movement of the fixed frame 1301, the transmission plate 1203 is driven to rotate on the support frame 1201 through the interaction between the second transmission pin 1303 and the second transmission groove 1302. During the rotation of the transmission plate 1203, the identification rod 1102 is driven to slide inside the opening 1101 through the offset transmission action of the first transmission groove 1204 and the first transmission pin 1205.

[0050] Preferably, the pushing assembly includes a fixing frame 1301 fixed on the positioning plate 1002, a second transmission groove 1302 is opened on the transmission plate 1203, a second transmission pin 1303 is slidably connected to the second transmission groove 1302, one end of the second transmission pin 1303 is fixed to the fixing frame 1301, and the distance between the second transmission pin 1303 and the first transmission pin 1205 is several times the distance between the second transmission pin 1303 and the pin shaft 1202;

[0051] It should be noted here that: during the movement of the fixing frame 1301, the second transmission pin 1303 and the second transmission slot 1302 interact with each other to push the transmission plate 1203 to rotate on the supporting frame 1201;

[0052] It is worth noting here that: because the distance between the second transmission pin 1303 and the first transmission pin 1205 is several times the distance between the second transmission pin 1303 and the pin shaft 1202, during the transmission process through the movement of the fixed frame 1301, under the action of the lever principle, the identification rod 1102 slides a longer distance, thereby improving the sensitivity of the identification component.

[0053] Preferably, the rotating assembly includes a driving shaft 1401 rotatably connected to the mounting box 3, one end of the driving shaft 1401 is fixed to the upper end of the mounting column 4, and the other end of the driving shaft 1401 is located outside the mounting box 3 and fixed with a driving pin 1402;

[0054] It should be noted here that: the driving pin 1402 facilitates the rotation of the mounting column 4 at one end of the driving shaft 1401 .

[0055] In this solution: a TVS fuse protection structure includes the following steps:

[0056] When the TVS fuse protection structure is in use, multiple groups of fuses 1 to be used are arranged inside the installation box 3 and installed around the installation column 4 through the installation assembly. During the installation of the fuse 1, the pressure plates 503 on the front sides of the two groups of mounting frames 501 are pulled away from the mounting frames 501. After the pulling is completed, the fuse 1 is placed between the mounting frame 501 and the pressure plates 503, and the two ends of the fuse 1 are respectively against the second conductive plates 502 on the two groups of mounting frames 501. After the fuse 1 is placed, the pulling of the two groups of pressure plates 503 is released. The two groups of pressure plates 503 are reset under the elastic force of the second elastic force assembly and are against the fuse 1. Through the counteraction of the two groups of pressure plates 503, The melt 1 is installed and fixed between the mounting frame 501 and the pressing plate 503, and its two ends are respectively against the two groups of second conductive plates 502. After the installation of each group of melt 1 is completed, the mounting column 4 is driven to rotate by the rotating assembly. During the rotation of the mounting column 4, one side of the second conductive plates 502 on the two groups of mounting frames 501 on the mounting assembly is respectively against the first inclined surfaces 9 on the two groups of first conductive plates 7, pushing the first conductive plates 7 to be forced to contract against the inner wall of the mounting box 3. As the mounting column 4 continues to rotate and the first elastic component pushes the first conductive plates 7 after the contraction movement, the two groups of first conductive plates 7 are respectively against the two groups of second conductive plates 502 (see Fig.12 ), through the counteraction of the two sets of first conductive plates 7 and the second conductive plate 502, the circuit between the first conductive wire 201, the fuse 1 and the second conductive wire 202 is connected, and the circuit on the input conductive wire is fused through the fuse 1 for protection;

[0057] When the circuit between the melt 1 and the first wire 201 and the second wire 202 is connected by rotating the mounting post 4, as the mounting post 4 rotates, one side of the pressing plate 503 on the mounting assembly abuts against the second inclined surface 1003 on the positioning plate 1002. During the abutment process, the positioning plate 1002 is pushed to move toward the inner wall of the mounting box 3 for contraction. As the mounting post 4 continues to rotate, when the V-shaped groove 1001 on the pressing plate 503 is at the front side of the positioning plate 1002, the elastic force of the third elastic component on the contracted positioning plate 1002 causes the front end of the positioning plate 1002 to be inserted into the V-shaped groove 1001 on the back side of the pressing plate 503. 02, the offsetting clamping effect is used to extrude and position the melt 1 after the circuit is connected, so as to ensure that the melt 1 is more stably protected from fusing in the circuit. In the process of the positioning plate 1002 contracting and being pushed by the third elastic component, the movement of the positioning plate 1002 drives the fixed frame 1301 to move synchronously. In the process of the movement of the fixed frame 1301, the interaction between the second transmission pin 1303 and the second transmission groove 1302 drives the transmission plate 1203 to rotate on the support frame 1201. In the process of the rotation of the transmission plate 1203, the offsetting transmission effect between the first transmission groove 1204 and the first transmission pin 1205 drives the identification rod 1102 to slide inside the opening 1101 under force.

[0058] During the protective use of the fuse 1, when the fuse 1 melts under the action of the breakdown current in the circuit, the rotating assembly drives the mounting post 4 to rotate again. The rotation of the mounting post 4 facilitates the fuse 1 installed on other mounting assemblies to be connected with the two groups of first conductive plates 7, and the circuit is connected again for fuse protection. There is no need to open the mounting box 3 to replace and install the fuse 1 again, so as to ensure the continuity of the circuit protection by the fuse protection mechanism. During the process of the fuse 1 being melted, the pressing plate 503 and the positioning plate 1002 are respectively on the second elastic assembly and the third elastic assembly. Under the action of, it moves toward the mounting bracket 501. During the movement of the positioning plate 1002, the identification rod 1102 is pulled toward the inside of the mounting box 3 by the pushing assembly and the transmission assembly. During the movement of the identification rod 1102 toward the inside of the mounting box 3, the length of the identification rod 1102 outside the mounting box 3 is reduced. Therefore, during the process of the fuse 1 protecting the circuit from blowing, when the length of the identification rod 1102 outside the mounting box 3 is reduced, it is identified and determined that the fuse 1 inside the mounting box 3 has blown, which is convenient for accurate judgment of the usage of the fuse 1 on the circuit.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] 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 TVS fuse protection structure, comprising: A fuse (1) for fuse protection arranged on a circuit input wire, wherein the circuit input wire is composed of a first wire (201) and a second wire (202); It is characterized by further comprising: The installation box (3) is rotatably connected to the installation column (4) inside the installation box (3), and the melt (1) is provided with multiple groups inside the installation box (3), and the multiple groups of melt (1) are evenly distributed around the installation column (4), and the installation column (4) is provided with an installation component for limiting the installation of the melt (1), and two groups of first conductive plates (7) are provided inside the installation box (3), and one end of the first conductive wire (201) and the second conductive wire (202) are located inside the installation box (3) and are electrically connected to the two groups of first conductive plates (7) by welding. The first conductive plate (7) is elastically connected to the first conductive plate (7), and the mounting box (3) is provided with a first elastic component for elastically connecting the first conductive plate (7). The mounting box (3) is provided with a rotating component for rotating the mounting column (4). The rotating mounting column (4) switches the melt (1) fixed on different mounting components to abut against the two sets of first conductive plates (7). The mounting box (3) is provided with a positioning component for abutting and positioning the melt (1) during the rotation switching connection process. The mounting box (3) is provided with an identification component for identifying the state of the melt (1) after connection and use. The mounting assembly comprises two groups of mounting frames (501) fixed on the outside of the mounting column (4), and second conductive plates (502) for abutting against the two ends of the melt (1) are fixed on the two groups of mounting frames (501), and a pressure plate (503) for squeezing and limiting the melt (1) after the abutting connection is provided on the front side of the mounting frame (501), and a second elastic component for pulling the pressure plate (503) is provided between the mounting frame (501) and the pressure plate (503); The second elastic component includes two groups of second sleeves (601) fixed on the side of the pressure plate (503) close to the mounting frame (501), a second slide bar (602) is slidably connected to the second sleeve (601), one end of the second slide bar (602) is fixed to the mounting frame (501), and a second spring (603) is sleeved on the outer side of the second sleeve (601), and the two ends of the second spring (603) are respectively connected to the mounting frame (501) and the pressure plate (503); The first elastic component comprises two groups of first sleeves (801) fixed inside the installation box (3), a first slide bar (802) is slidably connected to the first sleeve (801), one end of the first slide bar (802) is fixed to the back of the first conductive plate (7), and a first spring (803) is sleeved on the outer side of the two groups of first sleeves (801), and the two ends of the first spring (803) are respectively connected to the inner wall of the installation box (3) and the first conductive plate (7); The positioning assembly comprises a V-shaped groove (1001) provided on a side of the pressing plate (503) away from the mounting frame (501); a positioning plate (1002) for engaging with the V-shaped groove (1001) is provided inside the mounting box (3); a third elastic assembly for elastically connecting the positioning plate (1002) is provided inside the mounting box (3); and second inclined surfaces (1003) for engaging with one side of the pressing plate (503) for transmission are provided on both sides of the positioning plate (1002); The third elastic component includes a plurality of groups of third sleeves (1501) fixed inside the installation box (3), each group of the third sleeves (1501) is slidably connected to a third slide bar (1502), one end of the third slide bar (1502) is fixed to one side of the positioning plate (1002), and the outer side of the third sleeve (1501) is provided with a third spring (1503), and the two ends of the third spring (1503) are respectively connected to the inner wall of the installation box (3) and the positioning plate (1002); The identification component comprises an opening (1101) formed on the installation box (3), an identification rod (1102) being slidably connected to the opening (1101), a scale line (1103) for identifying the length of the identification rod (1102) outside the installation box (3) being provided on a side wall of the identification rod (1102) located outside the installation box (3), and a transmission component for transmitting the identification rod (1102) being provided inside the installation box (3); The transmission assembly comprises a support frame (1201) fixed inside the installation box (3); a transmission plate (1203) is rotatably connected to the support frame (1201) via a pin shaft (1202); a first transmission groove (1204) is provided on the transmission plate (1203); a first transmission pin (1205) is slidably connected to the first transmission groove (1204); one end of the first transmission pin (1205) is fixed to the identification rod (1102); and a pushing assembly for pushing the transmission plate (1203) is provided on the positioning plate (1002); The pushing assembly includes a fixing frame (1301) fixed on the positioning plate (1002), a second transmission groove (1302) is provided on the transmission plate (1203), a second transmission pin (1303) is slidably connected to the second transmission groove (1302), one end of the second transmission pin (1303) is fixed to the fixing frame (1301), and the distance between the second transmission pin (1303) and the first transmission pin (1205) is several times the distance between the second transmission pin (1303) and the pin shaft (1202).

2. A TVS fuse protection structure according to claim 1, characterized in that: Both sides of the first conductive plate (7) are provided with first inclined surfaces (9) for abutting against one side of the second conductive plate (502) during the rotation of the mounting column (4).

3. The TVS fuse protection structure according to claim 1, wherein: The rotating assembly comprises a drive shaft (1401) rotatably connected to the mounting box (3), one end of the drive shaft (1401) being fixed to the upper end of the mounting column (4), and the other end of the drive shaft (1401) being located outside the mounting box (3) and being fixed with a drive pin (1402).

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