A combined mutual inductor with a shock absorbing structure

Abstract

A combined transformer with a shock-absorbing structure includes a transformer body and a shock-absorbing mechanism installed at the bottom of the transformer body, wherein the shock-absorbing mechanism includes a shock-absorbing telescopic rod, a spherical shock-absorbing airbag, a cylindrical shock-absorbing air cushion and a hollow damping ball. The four shock-absorbing telescopic rods can support and damp the four corners, while the spherical shock-absorbing airbag in the center can support and damp the middle part; the hollow damping ball can perform lateral damping and damping in the horizontal direction by arranging a second damping rod, a first flexible transmission rod and a second flexible transmission rod in combination with the spherical shock-absorbing airbag and the shock-absorbing telescopic rod, and the hollow damping ball can achieve vertical damping and damping between two fixed plates in the vertical direction through the first damping rod, the first spring and the second spring; the shock-absorbing mechanism forms an integral high-performance shock-absorbing structure at the bottom of the transformer body, thereby extending the service life of the combined transformer, thereby greatly increasing the safety of the combined transformer and protecting power safety.

Description

Technical Field

[0001] The invention relates to a combined mutual inductor, in particular to a combined mutual inductor with a shock absorbing structure. Background Art

[0002] Combined transformers are actually a combination of multiple voltage transformers and / or multiple current transformers. They are designed to meet the requirements of high-voltage power users for metering on the high-voltage side. They can be a combination of a voltage transformer and a current transformer for measuring single-phase power, or a combination of multiple voltage transformers and multiple current transformers for measuring three-phase power in three-phase lines according to the two-wattmeter method. Most of the current combined transformers will vibrate during operation due to the iron core in the induced magnetic field. These vibrations will impact the outer shell and make noise when the combined transformer is running. The vibration will cause the shell to be installed unstably. Long-term use will shorten the service life of the combined transformer, affect the normal use of the combined current transformer, and may cause unexpected dangers, etc., affecting the operation of the power system and bringing potential dangers to society. Summary of the invention

[0003] The present invention aims to solve the problems existing in the above-mentioned prior art and provides a combined mutual inductor with a shock absorbing structure, which has stable anti-seismic performance and a long service life, and improves the safety of the operation of the mutual inductor.

[0004] The present invention solves the technical problem by adopting a technical solution: a combined mutual inductor with a shock-absorbing structure, comprising a mutual inductor body and a shock-absorbing mechanism installed at the bottom of the mutual inductor body, the shock-absorbing mechanism comprising two upper and lower parallel fixed plates, a vertical shock-absorbing telescopic rod is fixedly installed between the four corners of the two fixed plates, a spherical shock-absorbing airbag is arranged between the middle parts of the two fixed plates, a cylindrical shock-absorbing air cushion is respectively arranged between the upper and lower ends of the spherical shock-absorbing airbag and the two fixed plates, the outer jacket of the cylindrical shock-absorbing air cushion is provided with an elastic hoop fixed to the surface of the spherical shock-absorbing airbag, and the elastic hoop and the fixed plate are circumferentially divided A plurality of hinged support links are arranged, a hollow damping ball is provided between the spherical shock-absorbing airbag and the shock-absorbing telescopic rod, the top of the hollow damping ball is fixedly connected to the upper fixed plate by a first spring, a first damping rod is vertically slidably installed on the bottom of the hollow damping ball, the lower end of the first damping rod is fixedly connected to the lower fixed plate by a second spring, a second damping rod is horizontally slidably installed on the hollow damping ball, a first flexible transmission rod is fixedly connected between one end of the second damping rod and the side wall of the shock-absorbing telescopic rod, and a second flexible transmission rod is fixedly connected between the other end of the second damping rod and the side wall of the spherical shock-absorbing airbag.

[0005] For further improvement, a shock-absorbing fluid is provided at the bottom of the spherical shock-absorbing airbag, a circular wave-breaking plate is provided in the shock-absorbing fluid, energy-absorbing holes are evenly distributed on the surface of the circular wave-breaking plate, and the top of the spherical shock-absorbing airbag is fixedly connected to the circular wave-breaking plate by a third spring.

[0006] For further improvement, a cross-shaped filter screen is provided at the bottom of the circular wave-breaking plate.

[0007] For further improvement, a shock-absorbing lifting rod is vertically slidably installed on the circular wave-breaking plate, and a floating ball is provided at the upper end of the shock-absorbing lifting rod.

[0008] To further improve, the shock-absorbing telescopic rod includes a cylinder body, a movable rod and a piston, the inner end of the movable rod is fixedly connected to the piston, an oil storage chamber is provided in the cylinder body, damping oil is stored in the oil storage chamber, the inner wall of the oil storage chamber is sealingly and slidingly connected to the piston, a guide tube is fixedly connected to the lower end surface of the piston, the lower end of the guide tube is closed, a first through hole is provided on the upper side wall of the guide tube, a pressure spring is provided between the guide tube and the bottom of the oil storage chamber, a core tube is fixedly installed inside the guide tube, a second through hole staggered with the first through hole is provided on the lower side wall of the core tube, a guide channel connecting the first through hole and the second through hole is provided between the guide tube and the core tube, and a third through hole connected to the inside of the core tube is provided on the upper end surface of the piston.

[0009] For further improvement, a damping impeller is rotatably mounted on the core tube at a position between the first through hole and the second through hole.

[0010] For further improvement, a plurality of elastic limiting ropes are distributed circumferentially between the upper and lower elastic hoops, arc-shaped limiting magnets are arranged on the elastic limiting ropes, and adjacent arc-shaped limiting magnets are connected by magnetic adsorption.

[0011] For further improvement, the cylindrical shock-absorbing air cushion is provided with a shock-absorbing spring and a sponge filler inside, and piezoelectric ceramic power generation sheets are provided at the upper and lower ends of the cylindrical shock-absorbing air cushion, and the piezoelectric ceramic power generation sheets are electrically connected to an LED light.

[0012] Further improvement, the transformer body is a three-phase dry voltage and current combination transformer, with three groups of terminal posts on the top and rain shields around the bottom, and a dustproof net is connected between the rain shield and the fixed plate located below.

[0013] The beneficial effects of the present invention are as follows: the present invention realizes buffering of the vibration of the transformer body and external vibration by setting a shock-absorbing telescopic rod, a spherical shock-absorbing airbag, a cylindrical shock-absorbing air cushion and a hollow damping ball. The four shock-absorbing telescopic rods can support and damp the four corners, and the central spherical shock-absorbing airbag cooperates with the cylindrical shock-absorbing air cushion, the elastic hoop and the hinged support connecting rod to disperse the external force, reduce the vertical force and the torsional force, and realize the support and damping of the middle part; the hollow damping ball is arranged in the horizontal direction by setting the second damping rod, the first flexible transmission rod and the second flexible transmission rod to cooperate with the spherical shock-absorbing airbag and the shock-absorbing telescopic rod to perform lateral damping and damping, and the hollow damping ball can realize vertical damping and damping between the two fixed plates in the vertical direction through the first damping rod, the first spring and the second spring; through the above technical scheme, an integral high-performance shock-absorbing structure is formed at the bottom of the transformer body, thereby extending the service life of the combined transformer, thereby greatly increasing the safety of the combined transformer and protecting power safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of a spherical shock-absorbing airbag;

[0016] Figure 3 It is a structural schematic diagram of a shock-absorbing telescopic rod;

[0017] Figure 4 It is a schematic diagram of the structure of a cylindrical shock-absorbing air cushion;

[0018] Description of the accompanying drawings: 1. Transformer body, 11. Terminal, 12. Waterproof board, 13. Dustproof net, 2. Fixed plate, 21. Elastic hoop, 22. Articulated support connecting rod, 23. Elastic limiting rope, 24. Arc-shaped limiting magnet, 3. Shock-absorbing telescopic rod, 31. Cylinder body, 32. Movable rod, 33. Piston, 331. Third through hole, 34. Guide pipe, 341. First through hole, 35. Oil storage chamber, 36. Pressure spring, 37. Core tube, 371. Second through hole, 372. Damping impeller, 4. Spherical shock-absorbing airbag, 41. Shock-absorbing fluid, 42. Circular wave-breaking plate, 43. Energy-absorbing hole, 44. Third spring, 45. Filter, 46. Shock-absorbing lifting rod, 47. Float, 5. Cylindrical shock-absorbing air cushion, 51. Shock-absorbing spring, 52. Sponge filler, 53. Piezoelectric ceramic generator, 54. LED lamp, 6. Hollow damping ball, 61. First spring, 62. First damping rod, 63. Second spring, 64. Second damping rod, 65. First flexible transmission rod, 66. Second flexible transmission rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] See attached Figure 1 : In this embodiment, a combined mutual inductor with a shock-absorbing structure includes a mutual inductor body 1 and a shock-absorbing mechanism installed at the bottom of the mutual inductor body 1, wherein the shock-absorbing mechanism includes two fixed plates 2 arranged in parallel up and down, and a vertical shock-absorbing telescopic rod 3 is fixedly installed between the four corners of the two fixed plates 2 to form four shock-absorbing support points, and a spherical shock-absorbing airbag 4 is provided between the middle parts of the two fixed plates 2, and a cylindrical shock-absorbing air cushion 5 is provided between the upper and lower ends of the spherical shock-absorbing airbag 4 and the two fixed plates 2 to support and damp the middle part; the cylindrical shock-absorbing air cushion 5 is provided with an elastic hoop 21 fixed to the surface of the spherical shock-absorbing airbag 4, and a plurality of hinged support connecting rods 22 are distributed circumferentially between the elastic hoop 21 and the fixed plate 2, thereby realizing the positioning of the spherical shock-absorbing airbag 4, dispersing the external forces transmitted from all directions, and reducing the vertical shock force and torsion acting on the fixed plate. force, a hollow damping ball 6 is provided between the spherical shock-absorbing airbag 4 and the shock-absorbing telescopic rod 3, the top of the hollow damping ball 6 is fixedly connected to the upper fixed plate 2 by a first spring 61, and the bottom of the hollow damping ball 6 is vertically slidably installed with a first damping rod 62, and the lower end of the first damping rod 62 is fixedly connected to the lower fixed plate 2 by a second spring 63. The first spring 61 and the second spring 63 can respectively transmit the vibrations on the upper and lower fixed plates 2, and realize vertical damping and shock absorption through the up and down sliding friction between the hollow damping ball 6 and the first damping rod 62, and a second damping rod 64 is horizontally slidably installed on the hollow damping ball 6, and a first flexible transmission rod 65 is fixedly connected between one end of the second damping rod 64 and the side wall of the shock-absorbing telescopic rod 3, and a second flexible transmission rod 66 is fixedly connected between the other end of the second damping rod 64 and the side wall of the spherical shock-absorbing airbag 4. The lateral vibration on the shock-absorbing telescopic rod 3 and the spherical shock-absorbing airbag 4 can be transmitted to the hollow damping ball 6 and the second damping rod 64 through the first flexible transmission rod 65 and the second flexible transmission rod 66 respectively. The horizontal sliding friction between the hollow damping ball 6 and the second damping rod 64 can realize lateral damping and shock absorption. The shock-absorbing mechanism forms an integral high-performance shock-absorbing structure at the bottom of the transformer body, thereby extending the service life of the combined transformer, thereby greatly increasing the safety of the combined transformer and protecting power safety. The transformer body 1 is a three-phase dry voltage and current combination transformer, and three groups of terminals 11 are arranged on the top for connecting the current and voltage of the three phases. A rainproof plate 12 is arranged around the bottom, which has the function of isolating rainwater, etc., and can extend the service life of the shock-absorbing mechanism. A dustproof net 13 is connected between the rainproof plate 12 and the fixed plate 2 located below, which has the functions of dustproof, ventilation and noise reduction, and can enhance the heat dissipation and shock absorption effect of the transformer body 1.

[0021] As attached Figure 2As shown, a shock absorbing fluid 41 is provided at the bottom of the spherical shock absorbing airbag 4, and the spherical shock absorbing airbag 4 is also filled with high-pressure gas. A circular wave-breaking plate 42 is provided in the shock absorbing fluid 41, and energy absorbing holes 43 are evenly distributed on the surface of the circular wave-breaking plate 42. The top of the spherical shock absorbing airbag 4 is fixedly connected to the circular wave-breaking plate 42 through a third spring 44. When the spherical shock absorbing airbag 4 is vibrated, the third spring 44 and the shock absorbing fluid 41 inside will generate fluctuations, and the shock absorbing fluid 41 flowing through the energy absorbing holes 43 on the surface of the circular wave-breaking plate 42 will consume the fluctuation energy, thereby achieving a shock absorbing effect.

[0022] A cross-shaped filter screen 45 is provided at the bottom of the circular wave-breaking plate 42 , which can further improve the efficiency of absorbing wave energy and also reduce the vibration amplitude of the circular wave-breaking plate 42 .

[0023] A shock-absorbing lifting rod 46 is vertically slidably installed on the circular wave-breaking plate 42, and a floating ball 47 is provided on the upper end of the shock-absorbing lifting rod 46. When the liquid level of the shock-absorbing fluid 41 floats, the floating ball 47 can be driven to move up and down, so that the shock-absorbing lifting rod 46 and the circular wave-breaking plate 42 can perform sliding damping, further improving the shock-absorbing effect.

[0024] As attached Figure 3 The shock-absorbing telescopic rod 3 shown in the figure includes a cylinder body 31, a movable rod 32 and a piston 33, the inner end of the movable rod 32 is fixedly connected to the piston 33, an oil storage chamber is provided in the cylinder body 31, damping oil is stored in the oil storage chamber, the inner wall of the oil storage chamber is sealingly and slidably connected to the piston 33, a guide tube 34 is fixedly connected to the lower end surface of the piston 33, the lower end of the guide tube 34 is closed, a first through hole 341 is provided on the upper side wall of the guide tube, a pressure spring 36 is provided between the guide tube 34 and the bottom of the oil storage chamber, a core tube 37 is fixedly installed inside the guide tube 34, a second through hole 371 staggered with the first through hole 341 is provided on the lower side wall of the core tube 37, a guide channel connecting the first through hole 341 and the second through hole 371 is provided between the guide tube 34 and the core tube 37, and a third through hole 331 connected to the inside of the core tube 37 is provided on the upper end surface of the piston 33. When the movable rod 32 is extended and retracted on the cylinder body 31, the pressure spring 36 elastically supports the piston 33, and the piston 33 moves up and down in the oil storage chamber. The damping oil in the oil storage chamber can flow up and down through the third through hole 331, the core tube 37, the second through hole 371, the guide channel, the guide tube 34 and the first through hole 341, thereby achieving an efficient damping and shock absorption effect.

[0025] The core tube 37 is rotatably mounted with a damping impeller 372 at a position between the first through hole 341 and the second through hole 371. When the damping oil flows through the guide channel, it drives the damping impeller 372 to rotate, thereby consuming the kinetic energy of the damping oil and improving the efficiency of shock absorption.

[0026] There are several elastic limiting ropes 23 distributed circumferentially between the upper and lower elastic hoops 21. The elastic limiting ropes 23 can constrain the spherical shock-absorbing airbag 4 to enhance the elasticity and structural strength of the spherical shock-absorbing airbag 4. The elastic limiting ropes 23 are each provided with an arc-shaped limiting magnet 24. Adjacent arc-shaped limiting magnets 24 are connected by magnetic adsorption, thereby improving the shock-absorbing ability of the spherical shock-absorbing airbag 4.

[0027] As attached Figure 4 As shown, the cylindrical shock-absorbing air cushion 5 is provided with a shock-absorbing spring 51 and a sponge filler 52 inside, which has the function of shock absorption and buffering. The upper and lower ends of the cylindrical shock-absorbing air cushion 5 are provided with piezoelectric ceramic power generation sheets 53, and the piezoelectric ceramic power generation sheets 53 are electrically connected to the LED lights 54. Piezoelectric ceramics are information functional ceramic materials that can convert mechanical energy and electrical energy into each other. When the piezoelectric ceramic power generation sheet 53 is subjected to vibration pressure, it can convert mechanical energy into electrical energy and light up the LED lights 54, thereby reducing the vibration stress.

[0028] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A combined transformer with a shock absorbing structure, comprising a transformer body (1) and a shock absorbing mechanism installed at the bottom of the transformer body (1), characterized in that: The shock absorbing mechanism comprises two fixed plates (2) arranged in parallel up and down, a vertical shock absorbing telescopic rod (3) is fixedly installed between the four corners of the two fixed plates (2), a spherical shock absorbing airbag (4) is arranged between the middle parts of the two fixed plates (2), a cylindrical shock absorbing air cushion (5) is arranged between the upper and lower ends of the spherical shock absorbing airbag (4) and the two fixed plates (2), the cylindrical shock absorbing air cushion (5) is provided with an elastic hoop (21) fixed to the surface of the spherical shock absorbing airbag (4) on the outer cover, a plurality of hinged support connecting rods (22) are circumferentially distributed between the elastic hoop (21) and the fixed plate (2), a hollow damping airbag (22) is arranged between the spherical shock absorbing airbag (4) and the shock absorbing telescopic rod (3), and a hollow damping airbag (22) is arranged between the spherical shock absorbing airbag (4) and the shock absorbing telescopic rod (3). The hollow damping ball (6) is fixedly connected to the top of the hollow damping ball (6) and the fixed plate (2) above by a first spring (61); the bottom of the hollow damping ball (6) is vertically slidably mounted with a first damping rod (62); the lower end of the first damping rod (62) is fixedly connected to the fixed plate (2) below by a second spring (63); a second damping rod (64) is horizontally slidably mounted on the hollow damping ball (6); a first flexible transmission rod (65) is fixedly connected between one end of the second damping rod (64) and the side wall of the shock-absorbing telescopic rod (3); and a second flexible transmission rod (66) is fixedly connected between the other end of the second damping rod (64) and the side wall of the spherical shock-absorbing airbag (4).

2. The combined mutual inductor with a shock absorbing structure according to claim 1, characterized in that: A shock absorbing liquid (41) is provided at the bottom of the spherical shock absorbing airbag (4), a circular wave-breaking plate (42) is provided in the shock absorbing liquid (41), energy absorbing holes (43) are evenly distributed on the surface of the circular wave-breaking plate (42), and the top of the spherical shock absorbing airbag (4) and the circular wave-breaking plate (42) are fixedly connected via a third spring (44).

3. The combined mutual inductor with a shock absorbing structure according to claim 2, characterized in that: A cross-shaped filter screen (45) is provided at the bottom of the circular wave-breaking plate (42).

4. The combined mutual inductor with a shock absorbing structure according to claim 2, characterized in that: A shock-absorbing lifting rod (46) is vertically slidably mounted on the circular wave-breaking plate (42), and a floating ball (47) is disposed at the upper end of the shock-absorbing lifting rod (46).

5. The combined mutual inductor with a shock absorbing structure according to claim 1, characterized in that: The shock-absorbing telescopic rod (3) comprises a cylinder body (31), a movable rod (32) and a piston (33). The inner end of the movable rod (32) is fixedly connected to the piston (33). An oil storage chamber is provided in the cylinder body (31). Damping oil is stored in the oil storage chamber. The inner wall of the oil storage chamber is sealingly and slidably connected to the piston (33). A guide tube (34) is fixedly connected to the lower end surface of the piston (33). The lower end of the guide tube (34) is closed. The upper side wall of the guide tube (34) is provided with a first through hole (341). The guide tube ( A pressure spring (36) is provided between the guide tube (34) and the bottom of the oil storage chamber, a core tube (37) is fixedly installed inside the guide tube (34), a second through hole (371) staggered with the first through hole (341) is provided on the lower side wall of the core tube (37), a guide channel connecting the first through hole (341) and the second through hole (371) is provided between the guide tube (34) and the core tube (37), and a third through hole (331) connected with the inside of the core tube (37) is provided on the upper end surface of the piston (33).

6. The combined mutual inductor with a shock absorbing structure according to claim 5, characterized in that: The core tube (37) is rotatably mounted with a damping impeller (372) at a position between the first through hole (341) and the second through hole (371).

7. The combined mutual inductor with a shock absorbing structure according to claim 1, characterized in that: A plurality of elastic limiting ropes (23) are circumferentially distributed between the upper and lower elastic hoops (21), and arc-shaped limiting magnets (24) are arranged on the elastic limiting ropes (23). Adjacent arc-shaped limiting magnets (24) are connected by magnetic attraction.

8. The combined mutual inductor with a shock absorbing structure according to claim 1, characterized in that: A shock absorbing spring (51) and a sponge filler (52) are arranged inside the cylindrical shock absorbing air cushion (5), and piezoelectric ceramic power generation sheets (53) are arranged at the upper and lower ends of the cylindrical shock absorbing air cushion (5), and an LED lamp (54) is electrically connected to the piezoelectric ceramic power generation sheet (53).

9. The combined mutual inductor with a shock absorbing structure according to claim 1, characterized in that: The transformer body (1) is a three-phase dry voltage and current combination transformer, with three groups of terminal posts (11) arranged on the top, rain shields (12) arranged around the bottom, and a dustproof net (13) connected between the rain shield (12) and the fixing plate (2) located below.

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