Intelligent transformer with intelligent protection function

Abstract

The present application relates to the technical field of intelligent transformer, and particularly relates to an intelligent transformer with intelligent protection function, which comprises a transformer shell, a winding core assembly, a monitoring and control assembly, the winding core assembly is arranged in the transformer shell, a movable seat is arranged at the top of the inner cavity of the transformer shell, an outer terminal is fixedly arranged at the lower end of the movable seat, a protection mechanism is arranged between the outer terminal and an inner terminal, a toothed plate which is slidably connected with the movable seat is fixedly arranged at the output shaft of an electric push rod, and a driving ring is meshingly connected with a threaded ring and the toothed plate. The intelligent transformer with intelligent protection function is meshingly connected with the threaded ring and the toothed plate, so that the outer terminal and the inner terminal can be separated, the sealing partition plate is transversely arranged between the outer terminal and the inner terminal, the effect of isolating the electric arc between the outer terminal and the inner terminal is achieved, the principle is clear, the structure is simple, and the assembly and maintenance difficulty of the device is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent transformers, and in particular to an intelligent transformer with intelligent protection function. BACKGROUND

[0002] A transformer is a power device used to change voltage, and its core function is to achieve voltage transformation through electromagnetic induction. Among them, the step-down transformer can convert high-voltage electricity into low-voltage electricity suitable for terminal device use. This feature enables efficient and safe transmission and distribution of electrical energy. At the same time, the transformer can also regulate the grid voltage to meet different power needs and ensure the stable operation of the power system. In actual operation, when the temperature of the transformer terminal is abnormal, the power supply usually needs to be cut off for protection. However, the electric arc generated during the power-off process will continue to discharge and release high temperature, which not only accelerates the aging of the insulation material, but also may cause the device to deform or even burn out. The current technical difficulty lies in the inability to achieve synchronous power-off of multiple contacts and the rapid dispersion and isolation of arc energy, which seriously affects the protection effect and service life of the transformer. The existing protection scheme still has defects such as slow response speed and incomplete protection when dealing with sudden failures, and needs to be improved.

[0003] The patent document with publication number CN119400567A in the prior art provides an intelligent transformer with intelligent protection function; the device is affected by the mutual influence of multiple actions, first, the terminal is quickly separated and disconnected from the contact terminal and the power terminal, the insulating block is located between the contact terminal and the power terminal to insulate and block, at the same time, the vertical separation terminal and the power terminal and the docking terminal are synchronously separated and separated, the insulating partition plate is located between the docking terminal and the power terminal to insulate and block, at the same time, the horizontal separation terminal and the docking terminal and the collection terminal are separated and disconnected to the left, the isolation baffle is located between the docking terminal and the collection terminal to insulate and block the arc.

[0004] However, the device still has the following problems: the device structure is too complex, different separation structures are used between different terminals, which undoubtedly increases the assembly and maintenance difficulty, and also increases the fault risk probability of the equipment, which obviously has a great defect. SUMMARY

[0005] The purpose of the present application is to solve the problems in the background art, and to provide an intelligent transformer with intelligent protection function.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: A smart transformer with intelligent protection function, comprising a transformer shell and a winding core assembly, a monitoring and control assembly, the winding core assembly is arranged in the transformer shell, the top of the inner cavity of the transformer shell is provided with a movable seat, the lower end of the movable seat is fixedly provided with an outer terminal, the upper end of the winding core assembly is fixedly provided with an inner terminal, a protection mechanism is arranged between the outer terminal and the inner terminal, the protection mechanism comprises a separation screw and a plurality of mutually adhered sealing partitions, the lower side of the outer terminal is provided with a limiting support fixedly connected with the movable seat, the lower end of the limiting support is rotatably provided with a driving ring, the plurality of sealing partitions are slidably arranged between the limiting support and the driving ring, the lower end of the limiting support is rotatably provided with a threaded ring threadedly connected with the separation screw, the lower end of the separation screw is fixedly provided with a supporting piece, the lower end of the movable seat is fixedly provided with an electric push rod, the output shaft of the electric push rod is fixedly provided with a toothed plate slidably connected with the movable seat, and the driving ring is meshingly connected with the threaded ring and the toothed plate.

[0007] In the smart transformer with intelligent protection function, the upper and lower ends of each sealing partition are fixedly provided with a first limiting sliding block and a second limiting sliding block, respectively, the lower end of the limiting support is provided with a first limiting sliding groove slidably connected with each first limiting sliding block, and the upper end of the driving ring is provided with a second limiting sliding groove slidably connected with each second limiting sliding block.

[0008] In the smart transformer with intelligent protection function, the supporting piece is arranged in a ring shape, and the lower end of the supporting piece and the upper end of the inner terminal are mutually adhered, the separation screw is arranged in an arc shape, and the lower end of the movable seat and the limiting support is provided with an arc-shaped insertion hole for plug-in connection with the separation screw.

[0009] In the smart transformer with intelligent protection function, the top of the inner cavity of the transformer shell is fixedly provided with an outer tapping box, the movable seat is plug-in installed at the lower end of the outer tapping box, and the upper end of the outer part of the transformer shell is provided with a terminal box and an insulating sleeve electrically connected with the outer tapping box.

[0010] In the smart transformer with intelligent protection function, the upper end of the movable seat is fixedly provided with an inner terminal box, the inner terminal box is electrically connected with each outer terminal through a wire, and the outer tapping box and the inner terminal box are electrically connected through a lead-in wire.

[0011] In the smart transformer with intelligent protection function, a collection disc is arranged between the outer tapping box and the inner terminal box, a winding shaft is rotatably arranged in the middle of the collection disc, the middle of the lead-in wire is fixedly connected with the winding shaft, limiting shafts symmetrically arranged in pairs are fixedly arranged on the upper and lower sides of the inner cavity of the collection disc, and the lead-in wire is arranged between the two limiting shafts symmetrically arranged on the left and right.

[0012] In the intelligent transformer with the intelligent protection function, the bottom side of the collecting disc is provided with a counterweight plate, a through hole is formed in the middle part of the counterweight plate, the lead-in wire is arranged in the through hole, the upper end of the counterweight plate is fixedly installed with the limit slide rods and the rack which are centrally symmetrically distributed.

[0013] In the intelligent transformer with the intelligent protection function, the outer end of the winding shaft is fixedly installed with a driven gear, the outer wall of the collecting disc is rotationally installed with a driving gear which is meshingly connected with the driven gear, and the outer end of the driving gear is fixedly installed with an input gear which is coaxially arranged with the driving gear, and the input gear is meshingly connected with the rack.

[0014] Compared with the prior art, the intelligent transformer with the intelligent protection function has the advantages that:

[0015] Firstly, the device is provided with a protection mechanism, the driving ring is meshingly connected with the threaded ring and the toothed plate, the support pieces can be driven to move downward to separate the outer terminal and the inner terminal, and the sealing partition plates can be driven to shrink inward so as to be horizontally arranged between the outer terminal and the inner terminal, thereby achieving the effect of isolating the electric arc between the outer terminal and the inner terminal, compared with the original device, the principle of the device is clear, the structure is simple, and the assembly and maintenance difficulty of the device is reduced.

[0016] Secondly, the first limit sliding block and the first limit sliding groove and the second limit sliding groove and the second limit sliding block are slidably connected, so that the rotating driving ring can simultaneously drive the sealing partition plates to shrink inward or expand outward, compared with the original device which drives the insulating block to move through the electric cylinder, the device can shorten the stroke of the insulating structure by half, thereby improving the blocking efficiency of the protection mechanism on the electric arc.

[0017] Thirdly, the collecting disc and the winding shaft are arranged in the middle part of the lead-in wire, and the counterweight plate connected with the winding shaft, in the process of moving the movable seat downward, the winding shaft can be put out, and in the process of moving the movable seat upward, the lead-in wire can be wound around the winding shaft through the counterweight plate, thereby avoiding the winding and disorder of the lead-in wire, improving the safety of the equipment, and facilitating independent maintenance of the lead-in wires. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the external structure of the transformer shell of the present application;

[0019] Figure 2 is a schematic view of the internal structure of the transformer shell and the winding core assembly of the present application;

[0020] Figure 3 is a schematic view of the external structure of the winding core assembly of the present application;

[0021] Figure 4Figure 1 is a schematic diagram of the external structure of the movable seat and protection mechanism of the present application;

[0022] Figure 5 Figure 2 is a schematic diagram of the internal structure of the protection mechanism of the present application;

[0023] Figure 6 Figure 3 is a schematic diagram of the internal split structure of the protection mechanism of the present application;

[0024] Figure 7 Figure 4 is a schematic diagram of the external structure of the limiting support of the present application;

[0025] Figure 8 Figure 5 is a schematic diagram of the external structure of the electric push rod and toothed plate of the present application;

[0026] Figure 9 Figure 6 is a schematic diagram of the external structure of the tapping box and collection disc of the present application;

[0027] Figure 10 Figure 7 is a schematic diagram of the internal split structure of the collection disc of the present application;

[0028] Figure 11 Figure 8 is a schematic diagram of the Figure 10 Figure 9 is an enlarged schematic diagram of the structure at A in Figure 8.

[0029] Figure 10 is a schematic diagram of the external structure of the present application.

[0030] 1, transformer housing; 10, movable seat; 101, monitoring and control assembly; 11, outer terminal;

[0031] 2, winding core assembly; 21, inner terminal;

[0032] 3, protection mechanism;

[0033] 31, limiting support; 311, first limiting sliding groove;

[0034] 32, sealing partition; 321, first limiting sliding block; 322, second limiting sliding block;

[0035] 33, driving ring; 331, second limiting sliding groove;

[0036] 34, separation screw; 340, threaded ring; 341, support sheet; 342, arc-shaped insertion hole;

[0037] 35, electric push rod; 351, toothed plate;

[0038] 4, outer tapping box; 401, terminal box; 402, insulating sleeve;

[0039] 41, inner terminal box; 42, lead-in wire;

[0040] 43, collection disc; 431, winding shaft; 432, limiting shaft;

[0041] 44, counterweight plate; 441, through hole; 442, limiting sliding rod; 443, rack; 444, input gear; 445, driving gear; 446, driven gear. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0043] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] Reference Figures 1-11 The intelligent transformer with intelligent protection function comprises a transformer shell 1, a winding core assembly 2, and a monitoring and control assembly 101, characterized in that the winding core assembly 2 is arranged in the transformer shell 1, an active seat 10 is arranged at the top of the inner cavity of the transformer shell 1, an outer terminal 11 is fixedly installed at the lower end of the active seat 10, an inner terminal 21 is fixedly installed at the upper end of the winding core assembly 2, a protection mechanism 3 is arranged between the outer terminal 11 and the inner terminal 21, the protection mechanism 3 comprises a separation screw 34 and a plurality of mutually adhered sealing partitions 32, a limiting support 31 fixedly connected with the active seat 10 is arranged at the lower side of the outer terminal 11, a driving ring 33 is rotatably installed at the lower end of the limiting support 31, the plurality of sealing partitions 32 are slidably installed between the limiting support 31 and the driving ring 33, a threaded ring 340 threadedly connected with the separation screw 34 is rotatably installed at the lower end of the limiting support 31, a supporting piece 341 is fixedly installed at the lower end of the separation screw 34, an electric push rod 35 is fixedly installed at the lower end of the active seat 10, a toothed plate 351 slidably connected with the active seat 10 is fixedly installed at the output shaft of the electric push rod 35, and the driving ring 33 is meshingly connected with the threaded ring 340 and the toothed plate 351.

[0045] First limiting sliding blocks 321 and second limiting sliding blocks 322 are fixedly installed at the upper and lower ends of each sealing partition 32, respectively, a first limiting sliding groove 311 slidably connected with each first limiting sliding block 321 is formed at the lower end of the limiting support 31, and a second limiting sliding groove 331 slidably connected with each second limiting sliding block 322 is formed at the upper end of the driving ring 33.

[0046] The support sheet 341 is annularly arranged, and the lower end of the support sheet 341 is attached to the upper end of the inner terminal 21; the disconnecting screw 34 is arcuately arranged, and the movable seat 10 and the limiting support 31 are provided with an arc-shaped insertion hole 342 which is connected with the disconnecting screw 34.

[0047] The specific working principle and use method of the present application are explained in detail as follows:

[0048] The monitoring and control assembly 101 comprises a temperature sensor and a controller, the controller is preset with a specified temperature value, the temperature sensor can receive the temperature information inside the transformer shell 1 and transmit the information to the controller, and when the temperature reaches the preset value, the controller starts the electric push rod 35 to move;

[0049] In operation, the electric push rod 35 drives the gear plate 351 to move through its output shaft, and the gear plate 351 is connected with the driving ring 33, the threaded ring 340 and the gear plate 351 through engagement, so that the moving gear plate 351 can drive the driving ring 33 and the threaded ring 340 to rotate at the same time;

[0050] Firstly, when the threaded ring 340 rotates, it can drive the disconnecting screw 34 to move downward through the threaded connection between the threaded ring 340 and the disconnecting screw 34, and the insertion connection between the disconnecting screw 34 and the arc-shaped insertion hole 342, because the lower end of the support sheet 341 is attached to the upper end of the inner terminal 21, the support sheet 341, the limiting support 31 and the outer terminal 11 can be lifted upward, so that the outer terminal 11 and the inner terminal 21 are separated from each other;

[0051] Secondly, when the driving ring 33 rotates, the driving ring 33 can drive each sealing partition plate 32 to shrink inward at the same time through the sliding connection between the first limiting sliding block 321 and the first limiting sliding groove 311, and the sliding connection between the second limiting sliding groove 331 and the second limiting sliding block 322, and the preset stroke of the sealing partition plate 32, so that each sealing partition plate 32 can be placed horizontally between the outer terminal 11 and the inner terminal 21 when the outer terminal 11 and the inner terminal 21 are separated, so as to achieve the effect of isolating the electric arc between the two.

[0052] Specifically, the outer tapping box 4 is fixedly installed at the top of the inner cavity of the transformer shell 1, the movable seat 10 is inserted and installed at the lower end of the outer tapping box 4, and the terminal box 401 and the insulating sleeve 402 which are electrically connected with the outer tapping box 4 are arranged at the upper end of the transformer shell 1.

[0053] The inner terminal box 41 is fixedly installed at the upper end of the movable seat 10, the inner terminal box 41 is electrically connected with each outer terminal 11 through a wire, and the outer tapping box 4 and the inner terminal box 41 are electrically connected through the lead wire 42.

[0054] The outer distribution box 4 is provided with a collecting disc 43, the middle part of the collecting disc 43 is rotatably installed with a winding shaft 431, the middle part of the lead-in wire 42 is fixedly connected with the winding shaft 431, the upper and lower sides of the inner cavity of the collecting disc 43 are fixedly installed with two limiting shafts 432 which are symmetrically arranged, and the lead-in wire 42 is arranged between the two limiting shafts 432 which are symmetrically arranged.

[0055] The lower side of the collecting disc 43 is provided with a counterweight plate 44, the middle part of the counterweight plate 44 is provided with a through hole 441, the lead-in wire 42 is arranged in the through hole 441, and the upper end of the counterweight plate 44 is fixedly installed with a limiting sliding rod 442 and a rack 443 which are centrally symmetrically arranged.

[0056] The outer end of the winding shaft 431 is fixedly installed with a driven gear 446, the outer wall of the collecting disc 43 is rotatably installed with a driving gear 445 which is meshingly connected with the driven gear 446, the outer end of the driving gear 445 is fixedly installed with an input gear 444 which is coaxially arranged with the driving gear 445, and the input gear 444 is meshingly connected with the rack 443.

[0057] The inner terminal box 41 and the outer distribution box 4 are arranged, and the lead-in wire 42 is arranged, so that the outer terminal 11 can be connected with the terminal box 401 and the insulating sleeve 402 and the like.

[0058] The collecting disc 43 and the winding shaft 431 which are rotatably connected are arranged, and the middle part of the lead-in wire 42 is fixedly connected with the winding shaft 431, in the process that the movable seat 10 moves downward, the winding shaft 431 rotates, the peripheral lead-in wire 42 can be laid outwards, and the counterweight plate 44 can be driven to move upwards;

[0059] In the process that the movable seat 10 moves upwards, the counterweight plate 44 moves downwards, the winding shaft 431 can be reversely rotated, and the lead-in wire 42 can be wound on the periphery of the winding shaft 431.

[0060] The driving gear 445 and the input gear 444 which are fixedly connected are arranged, the meshing connection is arranged between the input gear 444 and the rack 443 and between the driven gear 446 and the driving gear 445, the diameter of the driving gear 445 is twice the diameter of the driven gear 446, and in the process that the counterweight plate 44 drives the rack 443 to move downwards, the winding shaft 431 can be driven to rotate at a high speed, and the winding speed of the winding shaft 431 on the lead-in wire 42 can be improved.

[0061] Further, the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited, for example, can be welding, can be gluing, or can be integrally formed with the conventional means which is well known by those skilled in the art.

[0062] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A smart transformer with intelligent protection function, comprising a transformer housing and winding core assembly, a monitoring and control assembly, characterized in that: The winding core assembly is arranged in the transformer shell, the inner cavity top of the transformer shell is provided with a movable seat, the lower end of the movable seat is fixedly installed with an outer terminal, the upper end of the winding core assembly is fixedly installed with an inner terminal, a protection mechanism is arranged between the outer terminal and the inner terminal, the protection mechanism comprises a separation screw and a plurality of mutually adhered sealing partitions, the lower side of the outer terminal is provided with a limiting support fixedly connected with the movable seat, the lower end of the limiting support is rotatably installed with a driving ring, the plurality of sealing partitions are slidably installed between the limiting support and the driving ring, the lower end of the limiting support is rotatably installed with a threaded ring threadedly connected with the separation screw, the lower end of the separation screw is fixedly installed with a supporting sheet, the lower end of the movable seat is fixedly installed with an electric push rod, the output shaft of the electric push rod is fixedly installed with a toothed plate slidably connected with the movable seat, and the driving ring is meshingly connected with the threaded ring and the toothed plate, first limiting sliding blocks and second limiting sliding blocks are respectively fixedly installed at the upper and lower ends of each sealing partition, a first limiting sliding groove slidably connected with each first limiting sliding block is formed in the lower end of the limiting support, and a second limiting sliding groove slidably connected with each second limiting sliding block is formed in the upper end of the driving ring, the supporting sheet is annularly arranged, the lower end of the supporting sheet is mutually adhered with the upper end of the inner terminal, the separation screw is arcuately arranged, and the lower ends of the movable seat and the limiting support are provided with an arc-shaped insertion hole for plug-in connection with the separation screw.

2. The smart transformer with intelligent protection function according to claim 1, characterized in that: The inner cavity top of the transformer shell is fixedly installed with an outer tapping box, the movable seat is plug-in installed at the lower end of the outer tapping box, and the upper end of the outer portion of the transformer shell is provided with a terminal box and an insulating sleeve electrically connected with the outer tapping box.

3. The smart transformer with intelligent protection function according to claim 2, characterized in that: The upper end of the movable seat is fixedly installed with an inner terminal box, the inner terminal box is electrically connected with each outer terminal through a wire, and the outer tapping box and the inner terminal box are electrically connected through a lead wire.

4. The smart transformer with intelligent protection function according to claim 3, characterized in that: A collecting disc is arranged between the outer tapping box and the inner terminal box, a winding shaft is rotatably installed in the middle of the collecting disc, the middle of the lead wire is fixedly connected with the winding shaft, limiting shafts symmetrically arranged in pairs are fixedly installed on the upper and lower sides of the inner cavity of the collecting disc, and the lead wire is arranged between the two limiting shafts symmetrically arranged on the left and right.

5. The smart transformer with intelligent protection function according to claim 4, characterized in that: A counterweight plate is arranged on the lower side of the collecting disc, a through hole is formed in the middle of the counterweight plate, the lead wire is arranged in the through hole, and a limiting sliding rod and a rack symmetrically arranged at the center are fixedly installed on the upper end of the counterweight plate.

6. The smart transformer with intelligent protection function according to claim 5, characterized in that: A driven gear is fixedly installed on the outer end of the winding shaft, a driving gear meshingly connected with the driven gear is rotatably installed on the outer wall of the collecting disc, an input gear coaxially arranged with the driving gear is fixedly installed on the outer end of the driving gear, and the input gear is meshingly connected with the rack.

Images