Self-adapting open-close mutual inductor with protection mechanism

Abstract

The application relates to the field of mutual inductors, and provides a self-adaptive opening and closing mutual inductor with a protection mechanism, which comprises a first main body and a second main body, the second main body is hingedly arranged on the top of the first main body, the first main body is provided with two secondary windings on an iron core, the first main body comprises a driving rail, an operation unit, a linkage wire support and a control assembly, the control assembly is used for switching between output contacts of the two secondary windings, a sampling output terminal and a controller, the linkage wire support is used for the mobile connection of secondary lead wires and the automatic short circuit of the output contacts. The self-adaptive opening and closing mutual inductor integrates the functions of direct detection, metering and output sampling, and realizes the matching switching of the two windings, the controller and the sampling output terminal through a winding switching circuit, so that each function can be adapted to the two secondary windings, and the use scene of the mutual inductor is expanded.

Description

Technical Field

[0001] The present application belongs to the technical field of transformers, and specifically relates to an adaptive switching transformer with a protection mechanism. Background Art

[0002] Split-type current transformers, also known as combined current transformers, are suitable for portable measurement and power transmission and distribution retrofits. Compared to a monolithic ring core, the split-type combination of two cores facilitates installation over pre-installed cables, reducing the need for cable reconnection and improving transformer installation efficiency.

[0003] There are still some problems with the existing split-type transformer in actual use:

[0004] First of all, the main usage scenario of the transformer is to output samples for detection and measurement by other equipment, or to directly integrate detection components to directly detect or measure the samples. The existing open-close transformer is basically only suitable for one of the above scenarios. On the basis of its own detection and measurement functions, it will not be configured with current sampling output terminals. The function is single and is not suitable for complex scenarios that require both direct detection of current and output sampling.

[0005] Secondly, no matter which of the above scenarios the transformer is suitable for, its secondary winding is single, and the parameters such as the winding ratio and capacity are fixed, which limits its application and reduces the utilization rate of the transformer.

[0006] Thirdly, the display configuration component of the detection transformer is fixed, but the postures of the target cables are different, and the fixed display configuration component may cause inconvenience during use. Summary of the Invention

[0007] The present application provides an adaptive switching transformer with a protection mechanism to solve or partially solve the problems raised in the above background technology.

[0008] The present application provides an adaptive switching transformer with a protection mechanism, comprising a first body and a second body, wherein the second body is hingedly arranged on the top of the first body, and is characterized in that:

[0009] The first body has two secondary windings on its iron core, an operating cavity at its bottom, two output contacts of the secondary windings in the operating cavity, and a U-shaped wire threading groove on the periphery of the operating cavity;

[0010] A drive rail is provided on the front and rear sides and the bottom of the operating cavity at the bottom of the first main body, and its extended shape is the same as that of the threading groove;

[0011] An operating unit is connected to the slider of the drive rail, and is provided with a control component inside. An interactive component and a wiring slot are provided on the front end face. A sampling output terminal is provided at the bottom end of the wiring slot. A protective plate for shielding the sampling output terminal is movably provided on the side wall of the wiring slot;

[0012] A linkage wire bracket, which movably passes through the wire groove and has both ends connected to the output contacts and the operating unit, is used to guide the secondary lead and short-circuit it, and is used to drive the protection plate;

[0013] The control component includes a winding switching circuit and a controller. The winding switching circuit is used for switching between the output contacts of the two secondary windings and the sampling output terminal and the controller.

[0014] Preferably, the driving rail is a U-shaped structure consisting of a semicircular guide rail and two vertically extending rails;

[0015] The output contacts of the secondary winding are two concentric arc structures. The line connecting the centers of the two secondary winding output contacts is collinear with the center of the semicircular guide rail of the drive rail. The extension surfaces of the arc structures corresponding to the secondary winding and the drive rail are parallel to each other.

[0016] Preferably, the linkage wire bracket includes a U-shaped slide slidably sleeved on the two sets of output contacts, the U-shaped slide is sequentially connected in series with a connecting rod and an extension seat, the front side of the extension seat is fixed to the operating unit, and a sampling dynamic contact ring is provided at the connection portion between the U-shaped slide and the two sets of output contacts, and a secondary lead connecting the sampling dynamic contact ring and the winding switching circuit is passed through the U-shaped slide, the connecting rod, and the extension seat;

[0017] A multi-position short-circuit switch is provided on the sliding sleeve around the connecting rod, a driving cylinder is provided on the rear side of the extension seat, the output shaft of the driving cylinder is connected to the multi-position short-circuit switch, and driving connecting rods are symmetrically provided on the left and right sides of the multi-position short-circuit switch, the driving connecting rods are slidably inserted on the rear side of the extension seat, and two driven connecting rods are slidably inserted on the front end face of the extension seat, the two driving connecting rods are movably connected with the two driven connecting rods respectively, the front opposite end faces of the two driven connecting rods are provided with first racks, a driven gear is rotatably provided between the two first racks, the driven gear is meshed with the two first racks, and the driven gear is transmission-connected to the protection plate.

[0018] Preferably, two groups of static shorting bars are provided on the outer periphery of the connecting rod relative to the covering position of the multi-position shorting switch, each group of static shorting bars is connected in series in each group of secondary leads, the static shorting bars extend front to back and the two groups of static shorting bars are spaced apart front to back and left to right;

[0019] Two movable shorting bars are provided on the inner wall of the multi-position shorting switch in front and behind the extending direction of each static shorting bar, and the two sets of movable shorting bars are symmetrical. The movable shorting bars flexibly interfere with the static shorting bars.

[0020] Set the two sets of static shorting links arranged from front to back as a and b, and set the dynamic shorting links corresponding to each static shorting link as A1, A2 and B1, B2 respectively. Move the multi-position shorting switch back and forth to achieve five shorting states:

[0021] State 1, a and b are not short-circuited;

[0022] State 2, a is short-circuited by A2, but b is not short-circuited;

[0023] State 3, a is short-circuited by A1, and b is short-circuited by B2;

[0024] State 4, a is not short-circuited, b is short-circuited by B1;

[0025] State 5: a and b are not short-circuited.

[0026] Preferably, the driving connecting rod and the driven connecting rod slide back and forth in the extension seat and are arranged to interfere with each other, the driving connecting rod is provided with a telescopic protrusion, and the driven connecting rod is provided with a connecting groove matching the telescopic protrusion, and the telescopic protrusion is movably inserted into the connecting groove;

[0027] The combination of the two sets of driving connecting rods and driven connecting rods corresponds to the travel of the multi-position short-circuiting switch between state State1 and state State2 and between state State4 and state State5 respectively. When the multi-position short-circuiting switch moves between state State1 and state State2 or between state State4 and state State5, the corresponding combination of telescopic protrusions is plugged into the corresponding connecting grooves.

[0028] Preferably, the driven gear is sleeved on a micro screw, the micro screw is rotatably arranged inside the operating unit and is symmetrically slidably sleeved on the upper and lower sides relative to the driven gear and is provided with a screw slide, the two screw slides have opposite threads and their front end faces are connected to the protective plate through an L-shaped bracket.

[0029] Preferably, the interactive component includes a display screen and operating buttons, and a cable tie groove is provided on the front end surface of the operating unit.

[0030] Preferably, a plurality of telescopic clamping mechanisms are evenly arranged on the periphery of the circular detection hole formed by the first body and the second body.

[0031] Compared with the prior art, this application has the following beneficial effects:

[0032] (1) The present application is equipped with two secondary windings, which are connected to the controller and sampling output terminal respectively, integrating the two functions of direct detection, metering and output sampling. The matching switching of the two windings with the controller and sampling output terminal is realized through the winding switching circuit, so that each function can be adapted to the two secondary windings, expanding the scope of application of the present application.

[0033] (2) The present application realizes the position movement of the operating unit through a U-shaped drive rail, which is convenient for the user to flexibly adjust the position of the operating unit according to needs during use. The arc-shaped output contacts and the linkage wire bracket realize the flexible movement of the sampling output lead (secondary lead), avoiding the pulling of the connection when multiple cables are moved, preventing poor contact, and avoiding the entanglement of cables.

[0034] (3) This application realizes automatic short-circuiting of the secondary side when switching windings and replacing the output target device by linking the multi-position short-circuit switch and the drive cylinder on the wire bracket, avoiding manual operation of the short-circuit piece and improving operation efficiency.

[0035] (4) This application realizes synchronous driving of the protection board on the basis of automatically short-circuiting the secondary side through the linkage wire bracket. The secondary side of the corresponding winding is automatically short-circuited only when the protection board is moved away to release the sampling output terminal, thereby preventing misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present application is further described below with reference to the accompanying drawings and examples.

[0037] Figure 1 This is the front view of the overall structure of this application.

[0038] Figure 2 This is the rear view of the overall structure of this application.

[0039] Figure 3 This is a bottom view of the overall structure of this application.

[0040] Figure 4 This is a schematic diagram of the internal structure of this application.

[0041] Figure 5 This is a schematic diagram of the local structure of the linkage wire bracket of this application Figure 1 ,

[0042] Figure 6 This is a schematic diagram of the local structure of the linkage wire bracket of this application Figure 2 ,

[0043] Figure 7 This is a schematic diagram of the internal structure of the multi-position shorting switch of this application.

[0044] Figure 8 This is a schematic diagram of the internal structure of the extension seat of this application.

[0045] Figure 9 This is a front view of the overall structure of another embodiment of the present application.

[0046] Figure 10 Schematic diagram of the method flow of this application.

[0047] In the picture:

[0048] 1. First body, 2. Second body, 3. Operating unit, 4. Driving rail, 5. Telescopic clamping mechanism, 6. Linkage wire bracket;

[0049] 31. Interaction component, 32. Wiring trough, 33. Protection plate, 34. Wire harness trough, 61. U-shaped slide, 62. Connecting rod, 63. Multi-position shorting switch, 64. Driving cylinder, 65. Driving connecting rod, 66. Extension seat, 67. Driven connecting rod, 68. Driven gear, 69. Micro screw, 610. Screw slide, 611. L-shaped bracket;

[0050] 100. Secondary lead, 101. Hinge portion, 102. Locking portion, 103. Wire threading slot, 104. Output contact, 621. Static shorting bar, 631. Dynamic shorting bar, 651. Telescopic protrusion, 661. Limit block, 671. First rack. DETAILED DESCRIPTION

[0051] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are merely used to facilitate the description of the present application and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present application.

[0053] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, these terms may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will readily understand the specific meanings of these terms in this application based on the specific circumstances.

[0054] Example 1

[0055] like Figures 1 to 10 As shown, the present application provides an adaptive switching transformer with a protection mechanism, comprising a first body 1 and a second body 2, wherein the second body 2 is hingedly arranged on the top of the first body 1. The first body 1 has two secondary windings arranged on its iron core, an operating cavity is arranged at its bottom, and output contacts 104 of the two secondary windings are arranged in the operating cavity. A U-shaped wire threading groove 103 is opened on the periphery of the operating cavity;

[0056] The driving rail 4 is provided on the front and rear sides and the bottom of the operating cavity at the bottom of the first main body 1 , and its extended shape is the same as the threading groove 103 ;

[0057] The operating unit 3 is connected to the slider of the driving rail 4, and is provided with a control component inside. The front end face is provided with an interactive component 31 and a wiring slot 32. The bottom end of the wiring slot 32 is provided with a sampling output terminal. The side wall of the wiring slot 32 is movably provided with a protective plate 33 for shielding the sampling output terminal;

[0058] The linkage wire bracket 6 is movable through the wire groove 103 and connected to the output contact 104 and the operating unit 3 at both ends, and is used to guide the secondary lead 100 and short-circuit it, and to drive the protection plate 33;

[0059] The control component includes a winding switching circuit and a controller. The winding switching circuit is used for switching between the output contacts 104 of the two secondary windings and the sampling output terminal and the controller.

[0060] like Figure 1 As shown, a hinge portion 101 and a locking portion 102 are provided at the connection between the first body 1 and the second body 2 of the present application, and the locking portion is any one of a mechanical locking mechanism or an electric locking mechanism.

[0061] The present application is configured with two secondary windings, which are respectively connected to its own controller and sampling output terminal, integrating the two functions of direct detection, measurement and output sampling, and realizing the matching switching of the two windings with the controller and sampling output terminal through the winding switching circuit, so that each function can be adapted to the two secondary windings, expanding the application surface of the present application. The controller of the present application is configured with an internal AD converter to complete the AD conversion of the sampling, and then feedback to the user through the interactive component 31; the position movement of the operating unit 3 is realized through the U-shaped drive rail 4, which is convenient for the user to flexibly adjust the posture of the operating unit according to needs during use.

[0062] Specifically, the drive rail 4 is a U-shaped structure consisting of a semicircular guide rail and two vertically extending rails. The output contact 104 of the secondary winding is two concentric arc structures. The line connecting the centers of the two secondary winding output contacts 104 is collinear with the center of the semicircular guide rail of the drive rail 4. The extension surfaces of the arc structures corresponding to the secondary winding and the drive rail 4 are parallel to each other.

[0063] Specifically, if Figures 4 to 6 As shown, the linkage wire bracket 6 includes a U-shaped slide 61 that is slidably mounted on two groups of output contacts 104. The U-shaped slide 61 is connected in series with a connecting rod 62 and an extension seat 66 in sequence. The front side of the extension seat 66 is fixed to the operating unit 3. A sampling dynamic contact ring is provided at the connection part between the U-shaped slide 61 and the two groups of output contacts 104. A secondary lead 100 connecting the sampling dynamic contact ring and the winding switching circuit is passed through the U-shaped slide 61, the connecting rod 62, and the extension seat 66. The current sampled by the secondary winding is transmitted to the winding switching circuit through the output contact 104, the sampling dynamic contact ring, and the winding switching circuit.

[0064] Specifically, a multi-position short-circuiting switch 63 is slidingly sleeved on the outer periphery of the connecting rod 62, a driving cylinder 64 is provided on the rear side of the extension seat 66, the output shaft of the driving cylinder 64 is connected to the multi-position short-circuiting switch 63, and driving connecting rods 65 are symmetrically provided on the left and right sides of the multi-position short-circuiting switch 63. The driving connecting rods 65 are slidingly inserted on the rear side of the extension seat 66, and two driven connecting rods 67 are slidingly inserted on the front end face of the extension seat 66. The two driving connecting rods 65 are respectively movably connected with the two driven connecting rods 67, and the front opposite end faces of the two driven connecting rods 67 are provided with first racks 671, and a driven gear 68 is rotatably provided between the two first racks 671. The driven gear 68 is meshed with the two first racks 671, and the driven gear 68 is transmission-connected to the protective plate 33.

[0065] The multi-position short-circuiting switch 63 is used to short-circuit the output contacts 104 of the corresponding winding when switching the winding and when the sampling output terminal needs to be disconnected. The short-circuiting is achieved by driving the multi-position short-circuiting switch 63 to move forward and backward by the driving cylinder. At the same time, the forward and backward movement of the multi-position short-circuiting switch 63 drives the two driving links 65 to move, and the two driving links 65 drive one of the driven links 67 to move. The rotation of the driven gear 68 is achieved through the meshing cooperation between the first rack 671 and the driven gear 68, thereby providing driving force for the movement of the protection plate 33.

[0066] Specifically, two groups of static shorting bars 621 are provided on the outer periphery of the connecting rod 62 relative to the covering position of the multi-position shorting switch 63. Each group of static shorting bars 621 is connected in series in each group of secondary leads 100. The static shorting bars 621 extend forward and backward, and the two groups of static shorting bars 621 are spaced apart front to back and left to right. Two movable shorting bars 631 are provided on the inner wall of the multi-position shorting switch 63 relative to the extension direction of each static shorting bar 621. The two groups of movable shorting bars 631 are symmetrical on the left and right, and the movable shorting bars 631 are movably in contact with the static shorting bars 621.

[0067] like Figure 7 As shown, in the connecting rod, the secondary leads 100 output by the two secondary windings are parallel to each other and extend forward and backward. Each group of static shorting bars 621 includes two shorting bars extending synchronously forward and backward, and each movable shorting bar 631 is a shorting bar extending left and right. The movable shorting bar 631 moves forward and backward following the multi-position shorting switch 63, and at the same time contacts two shorting bars in the same group of static shorting bars 621 to short-circuit them.

[0068] The two sets of static shorting bars 621 arranged from front to back (left to right in the figure) are designated as a and b, and the corresponding dynamic shorting bars 631 of each set of static shorting bars 621 are designated as A1, A2 and B1, B2 respectively. The multi-position shorting switch 63 can be moved from front to back to achieve five shorting states:

[0069] State 1, a and b are not short-circuited;

[0070] State 2, a is short-circuited by A2, but b is not short-circuited;

[0071] State 3, a is short-circuited by A1, and b is short-circuited by B2;

[0072] State 4, a is not short-circuited, b is short-circuited by B1;

[0073] State 5: a and b are not short-circuited.

[0074] Specifically, the driving link 65 and the driven link 67 slide back and forth in the extension seat 66 and are arranged to interfere with each other. The driving link 65 is provided with a telescopic protrusion 651, and the driven link 67 is provided with a connecting groove matching the telescopic protrusion 651. The telescopic protrusion 651 is movably inserted into the connecting groove.

[0075] Furthermore, the telescopic protrusion 651 includes a telescopic cylinder vertically arranged on the driving connecting rod 65 and a protrusion body arranged on the telescopic shaft of the telescopic cylinder.

[0076] The five shorting states of the multi-position shorting switch 63 correspond to its five travels from front to back and correspond to the operating states of the transformer. Obviously, states State1 and State5 correspond to the states when both secondary windings are working normally. States State2 and State4 correspond to the states where "one secondary winding is connected to the controller and working normally, and the other winding is connected to the sampling output terminal and is shorted". In this state, operations such as connecting and changing the output target of the sampling output terminal can be performed. State State3 corresponds to the state where "both secondary windings are shorted". In this state, the two secondary windings can be switched between the controller and the sampling output terminal. The driving connecting rod 65 and the driven connecting rod The purpose of setting 67 is to realize the driving of the protection plate 33, and synchronously complete the two operations of short-circuiting the secondary winding connected to it and moving the protection plate 33 to leak the sampling output terminal, and also synchronously complete the two operations of releasing the short-circuit of the secondary winding connected to it and moving the protection plate 33 to shield the sampling output terminal. Obviously, it corresponds to the travel of the multi-position short-circuiting switch 63 between state State1-state State2 and between state State4-state State5. When the multi-position short-circuiting switch 63 switches between state State2-state State3 and state State3-state State4, it is necessary to drive the connecting rod 65 and the driven connecting rod 67 to disengage.

[0077] Assume that at a certain moment the multi-position short-circuiting switch 63 of the present application is in state State 1, and both secondary windings are working normally. The secondary winding connected to the controller is named R1, and the other secondary winding is named R2. At this time, the protection plate 33 extends out of the side wall of the wiring slot 32 to cover the sampling output terminal. One set of driving links 65 and driven links 67 are in a connected state, and the other set is in a disconnected state. When the wiring of the sampling output terminal needs to be replaced, the user notifies the controller through the interactive component 31. The controller controls the driving cylinder 64 to move, driving the multi-position short-circuiting switch 63 to move forward, and the driving link 65 drives the driven link 67 to move forward until the protection plate 33 retracts into the side wall of the wiring slot 32. At this time, the multi-position short-circuiting switch 63 is in state State 2, and the secondary winding R2 corresponding to the sampling output terminal is short-circuited. The sampling output terminal can be operated. After the operation is completed, the multi-position short-circuiting switch 63 is controlled to move backward and return to state 1.

[0078] Assume that the secondary winding connected to the sampling output terminal needs to be replaced with R1. First, the controller controls the driving cylinder 64 to move, driving the driven link 67 to move forward until the multi-position short-circuiting switch 63 is in state State3. At this time, R1 and R2 are both in the short-circuited state. The controller controls the winding switching circuit to switch the connection state of RI and R2. After completion, the controller controls the telescopic protrusions 651 on the two sets of driving links 65 and the driven link 67 to switch the connection state, so that the previously moved driven link 67 is separated from the corresponding driving link 65, and the driven link 67 on the opposite side that has not moved is connected to the corresponding driving link 65. The driving cylinder continues to move forward, so that the multi-position short-circuiting switch 63 is shifted to state State5, successfully switching the two secondary windings and making them work normally.

[0079] Specifically, the driven gear 68 is sleeved on the micro screw 69, and the micro screw 69 is rotatably set inside the operating unit 3 and is symmetrically slidably sleeved with screw slides 610 on the upper and lower sides relative to the driven gear 68. The two screw slides 610 have opposite threads and their front end faces are connected to the protective plate 33 through an L-shaped bracket 611.

[0080] The driven gear 68 drives the micro screw 69 to rotate, which in turn drives the two screw slides 610 to move, and further drives the two protection plates to move.

[0081] Specifically, the interactive component 31 includes a display screen and operation buttons, and a cable tie groove 34 is provided on the front end surface of the operation unit 3 .

[0082] Preferably, a plurality of telescopic clamping mechanisms 5 are evenly arranged on the outer periphery of the circular detection hole formed by the first main body 1 and the second main body 2. The telescopic clamping mechanism 5 includes a telescopic mechanism arranged toward the center of the circular detection hole and a clamping block arranged on the telescopic axis of the telescopic mechanism, which is used to fix the present application on the target cable.

[0083] Specifically, the controller is a single-chip microcomputer or other industrial control computer, the drive cylinder 64, telescopic cylinder, and telescopic mechanism are electric cylinders, the drive rail 4 is an electric guide rail, and the winding switching circuit is a two-way sampling switching circuit, which is a conventional design in this field and will not be repeated here.

[0084] Example 2

[0085] Based on Example 1, this application also provides an operating method for an adaptive switching transformer with a protection mechanism, and the specific steps are as follows:

[0086] S1: The controller controls the driving rail 4 to move and adjust the position of the operating unit 3 to facilitate the operation of the interactive component 31 and / or the sampling output terminal;

[0087] S2: The controller controls the drive cylinder 64 to drive the multi-position short-circuit switch 63 to operate, and cooperates with the winding switching circuit to automatically short-circuit the secondary winding, completing the matching switching between the secondary winding and the controller and sampling output terminal;

[0088] S3: The controller controls the driving cylinder 64 to drive the multi-position short-circuit switch 63 to operate, cooperates with the movement of the telescopic protrusion 651, and drives the protection plate 33 in conjunction, thereby synchronously completing the driving of the protection plate 33 and the short-circuiting of the corresponding secondary winding.

[0089] The above describes the implementation methods of the present application in detail in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. An adaptive opening and closing mutual inductor with a protection mechanism, comprising a first body (1) and a second body (2), wherein the second body (2) is hingedly arranged on the top of the first body (1), and is characterized in that: A first main body (1) has two secondary windings disposed on its iron core, an operating cavity disposed at its bottom, two output contacts (104) of the secondary windings disposed in the operating cavity, and a U-shaped wire threading groove (103) disposed on the periphery of the operating cavity; A drive rail (4) is provided on the front and rear sides and the bottom of the bottom operating cavity of the first main body (1), and its extended shape is the same as the threading groove (103); An operating unit (3) is connected to the slider of the driving rail (4), and is provided with a control component therein. An interactive component (31) and a wiring slot (32) are provided at the front end face. A sampling output terminal is provided at the bottom end of the wiring slot (32), and a protective plate (33) for shielding the sampling output terminal is movably provided on the side wall of the wiring slot (32); A linked wire support (6) movably passes through the wire groove (103) and has both ends connected to the output contact (104) and the operating unit (3), and is used to guide the secondary lead (100) and short-circuit it, and is used to drive the protection plate (33); The control component comprises a winding switching circuit and a controller, wherein the winding switching circuit is used for switching between the output contacts (104) of the two secondary windings and the sampling output terminal and the controller; The driving rail (4) is a U-shaped structure consisting of a semicircular guide rail and two vertical extension rails; The output contacts (104) of the secondary winding are two concentric arc structures, the center line of the two secondary winding output contacts (104) is collinear with the center of the semicircular guide rail of the drive rail (4), and the extension surfaces of the arc structures corresponding to the secondary winding and the drive rail (4) are parallel to each other.

2. The adaptive switching transformer with protection mechanism according to claim 1, characterized in that: The linkage wire bracket (6) comprises a U-shaped slide (61) slidably mounted on two sets of output contacts (104); the U-shaped slide (61) is sequentially connected to a connecting rod (62) and an extension seat (66); the front side of the extension seat (66) is fixed to the operating unit (3); a sampling dynamic contact ring is provided at the connection portion between the U-shaped slide (61) and the two sets of output contacts (104); a secondary lead (100) connecting the sampling dynamic contact ring and the winding switching circuit is passed through the interior of the U-shaped slide (61), the connecting rod (62) and the extension seat (66); The outer peripheral sliding sleeve of the connecting rod (62) is provided with a multi-position short-circuit switch (63), the rear side of the extension seat (66) is provided with a driving cylinder (64), the output shaft of the driving cylinder (64) is connected to the multi-position short-circuit switch (63), and the left and right sides of the multi-position short-circuit switch (63) are symmetrically provided with driving connecting rods (65), the driving connecting rod (65) is slidably inserted into the rear side of the extension seat (66), and the front side end face of the extension seat (66) is slidably inserted with two driven connecting rods (67), the two driving connecting rods (65) are movably connected to the two driven connecting rods (67) respectively, the front side opposite end faces of the two driven connecting rods (67) are provided with first racks (671), and a driven gear (68) is rotatably provided between the two first racks (671), the driven gear (68) is meshed with the two first racks (671), and the driven gear (68) is transmission-connected to the protection plate (33).

3. The adaptive switching transformer with protection mechanism according to claim 2, characterized in that: Two groups of static shorting bars (621) are provided on the outer periphery of the connecting rod (62) at a position covering the multi-position shorting switch (63), each group of static shorting bars (621) is connected in series within each group of secondary leads (100), the static shorting bars (621) extend forward and backward, and the two groups of static shorting bars (621) are spaced apart in front and back and left and right. Two movable shorting bars (631) are provided on the inner wall of the multi-position shorting switch (63) in the front and rear directions relative to the extension direction of each static shorting bar (621), and the two groups of movable shorting bars (631) are symmetrical. The movable shorting bars (631) are in active contact with the static shorting bars (621); The two sets of static shorting bars (621) arranged from front to back are set as a and b, and the dynamic shorting bars (631) corresponding to each static shorting bar (621) are set as A1, A2 and B1, B2 respectively. The multi-position shorting switch (63) moves forward and backward to achieve five shorting states: State 1, a and b are not short-circuited; State 2, a is short-circuited by A2, but b is not short-circuited; State 3, a is short-circuited by A1, and b is short-circuited by B2; State 4, a is not short-circuited, b is short-circuited by B1; State 5: a and b are not short-circuited.

4. The adaptive switching transformer with protection mechanism according to claim 3, characterized in that: The driving connecting rod (65) and the driven connecting rod (67) slide forward and backward in the extension seat (66) and are arranged to abut against each other. The driving connecting rod (65) is provided with a telescopic protrusion (651), and the driven connecting rod (67) is provided with a connecting groove matching the telescopic protrusion (651). The telescopic protrusion (651) is movably inserted into the connecting groove. The combination of the two sets of driving connecting rods (65) and driven connecting rods (67) corresponds to the travel of the multi-position short-circuit switch (63) between the state State1 and the state State2 and between the state State4 and the state State5, respectively. When the multi-position short-circuit switch (63) moves between the state State1 and the state State2 or between the state State4 and the state State5, the corresponding combination of telescopic protrusions (651) is plugged into the corresponding connection groove.

5. The adaptive switching transformer with protection mechanism according to claim 2, characterized in that: The driven gear (68) is sleeved on a micro screw (69), and the micro screw (69) is rotatably arranged inside the operating unit (3) and is symmetrically slidably sleeved with screw slides (610) on the upper and lower sides relative to the driven gear (68). The two screw slides (610) have opposite threads and their front end faces are connected to the protection plate (33) through an L-shaped bracket (611).

6. The adaptive switching transformer with protection mechanism according to claim 1, characterized in that: The interactive component (31) includes a display screen and operating buttons, and a cable tie groove (34) is provided on the front end surface of the operating unit (3).

7. The adaptive switching transformer with protection mechanism according to claim 1, characterized in that: A plurality of telescopic clamping mechanisms (5) are evenly arranged on the outer periphery of the circular detection hole formed by the first body (1) and the second body (2).

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