An energy-saving and efficiency-enhancing distribution transformer

Abstract

The present invention relates to the field of transformers, specifically to an energy-saving and efficiency-enhancing distribution transformer, comprising a transformer main body, a transformer switch fixedly installed inside the transformer main body, a first cavity opened on the inner top wall of the transformer switch, a switching component rotatably installed inside the first cavity, and a scraping component fixedly installed at equal angles on the inner side wall of the transformer switch. When performing transformer switching, the present invention rotates the rotating handle to drive the disc to rotate, and utilizes the first teeth on its inner side wall to rotate the first gear, further driving the second gear and the connecting shaft to rotate, so that the fixed shaft drives the switching joint to rotate, thereby realizing the switching of the tap, wherein the diameter of the first gear is larger than the second gear. During the rotation of the first gear, the second gear will rotate faster, so that the fixed shaft and the switching joint rotate synchronously and quickly, thereby realizing fast transformer switching, reducing the contact time between the tap and the switching joint, and reducing arc generation.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to an energy-saving and efficiency-enhancing distribution transformer. Background Art

[0002] Transformers are basic equipment for power transmission and distribution, and are widely used in industries such as industry, agriculture, transportation, and urban communities. Transformers are equipped with multiple taps to regulate voltage and compensate for line voltage drops. By switching the taps, the turns ratio and voltage can be adjusted as needed to provide voltage regulation and compensate for line voltage drops.

[0003] For example, an energy-saving oil-immersed transformer proposed in announcement number CN116130211B includes a transformer body, a circulation mechanism, a temperature difference exchange mechanism, and a heat application mechanism; a plurality of corrugated heat sinks are connected to the transformer body, and a plurality of temperature sensors are installed on the transformer body; the circulation mechanism is connected to a side wall of the transformer body, and the circulation mechanism includes an installation box, a vertical partition is provided in the installation box, and a heat conversion cavity and a heat application cavity are formed between the vertical partition and the inner wall of the installation box; the temperature difference exchange mechanism is used to convert the heat energy in the transformer oil absorbed by the oil absorption mechanism into electrical energy for storage; the heat application mechanism uses the electrical energy stored by the temperature difference exchange mechanism to cool and dry the transformer body. This invention can recycle and reuse the heat energy carried by the transformer oil in the oil-immersed transformer through the arrangement of the corresponding mechanisms, thereby effectively avoiding the waste of heat energy in the transformer oil and facilitating the energy-saving and environmentally friendly use of the oil-immersed transformer.

[0004] Another example is a high-efficiency and energy-saving distribution transformer proposed in announcement number CN115985635B, which includes a transformer equipment body, a water tank is provided on the lower side of the transformer equipment body, and a number of heat dissipation fins are installed on the front and rear surfaces of the transformer equipment body. The front and rear surfaces of the transformer equipment body are respectively provided with a front shell and a rear shell, and reciprocating screws are provided inside the front shell and the rear shell. The threads on the reciprocating screws are matched with fan blades to ensure the heat dissipation effect outside the transformer equipment body. At the same time, a fixed tube is provided on the lower side of the interior of the transformer equipment body, a rotating rod is provided in the fixed tube, spiral blades are provided on the rotating rod, and a notch is provided on the front side of the upper surface of the fixed tube. The rear end of the fixed tube is connected to an oil drain pipe, the lower end of the oil drain pipe passes through the interior of the water tank and is connected to a circulating cooling pipe, the left end of the circulating cooling pipe is connected to the return oil pipe, and the upper end of the return oil pipe extends to the interior of the transformer equipment body, thereby realizing the cooling of the transformer oil and further improving the heat dissipation effect.

[0005] At present, manual rotation adjustment is mostly required during the voltage switching process, but the manual rotation speed is slow, which will cause arcing when the switching joint and the tap are disconnected during this period, causing an impact; in addition, during the voltage switching process, since the switching joint and the tap are in surface contact, arcing is inevitable during the disconnection and contact process, and the arc will affect the normal operation of the transformer; and since the voltage is being transformed, it will be affected by the arc, causing the contact surface between the tap and the switching joint to be burned and produce black blocks. If these black blocks are not handled in time, they will affect the conductivity of the tap and the switching joint, affecting the normal operation of the transformer.

[0006] In response to the above problems, an energy-saving and efficiency-enhancing distribution transformer is proposed. Summary of the Invention

[0007] The object of the present invention is to provide an energy-saving and efficiency-enhancing distribution transformer, which is operated by adopting the present device, thereby solving the problem in the above-mentioned background that the manual rotation speed is slow, which will cause the switching joint and the tap to be disconnected during this period, thereby generating an arc. In addition, since the switching joint and the tap are in surface contact, an arc is inevitably generated during the process of disconnection and contact, and under the influence of the arc, the contact surface between the tap and the switching joint is burned to produce black blocks, which affects the conductivity.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an energy-saving and efficiency-enhancing distribution transformer, comprising a transformer main body, a transformer switcher fixedly installed inside the transformer main body, a first cavity being provided on the inner top wall of the transformer switcher, a switching component being rotatably installed inside the first cavity, a second cavity being provided on the inner side wall of the transformer switcher, an arc extinguishing component being installed inside the second cavity, and a scraping component being fixedly installed at equal angles on the inner side wall of the transformer switcher.

[0009] Furthermore, the switching assembly includes a disc, which is rotatably connected to the top wall of the first cavity, and a plurality of first teeth are fixedly connected to the inner wall of the disc at equal angles. A rotating handle is fixedly connected to the top of the disc, and one end of the rotating handle extends to the outside of the transformer switch after passing through the top wall of the first cavity. A rotating shaft is symmetrically fixedly connected to the bottom wall of the first cavity, and a connecting shaft is rotatably connected to the bottom wall of the first cavity.

[0010] Furthermore, each side wall of the rotating shaft is fixedly connected to a first gear, each of the first gears is meshed with the first teeth, the side wall at one end of the connecting shaft is fixedly connected to a second gear, each of the first gears is meshed with the second gear, the other end of the connecting shaft is fixedly connected to a fixed shaft, the side wall at one end of the fixed shaft is fixedly connected to a first mounting ring, and the side wall of the first mounting ring is fixedly connected to a switching joint.

[0011] Furthermore, the arc extinguishing assembly includes a second mounting ring, which is fixedly connected to the side wall of the other end of the fixed shaft, and the side wall of the second mounting ring is fixedly connected to a support plate. The inner wall of the transformer switcher is fixedly connected to multiple inclined slides at equal angles, and the inner wall of the second cavity is provided with a first through hole and a second through hole at equal angles. The first through hole and the second through hole are in the same vertical plane, and the inner wall of the second cavity is symmetrically fixedly connected to multiple groups of second springs at equal angles.

[0012] The top end of the limit switch is fixedly connected to the bottom of the support plate, and the limit switch is fixedly connected to the bottom of the support plate, and one end of the limit switch is slidably connected to the wedge plate. The wedge plate is slidably connected to the top of the inclined slide, and the bottom end of the wedge plate is symmetrically fixedly connected to a connecting rod, and the two connecting rods are commonly fixedly connected to an insulating protective sleeve, each group of second springs is commonly fixedly connected to the arc plate, the side wall of the arc plate is fixedly connected to a tap, and the tap slides through the adjacent first through hole, and the top wall of the second cavity is symmetrically fixedly connected to multiple groups of third springs at equal angles, and the top wall of the second cavity is fixedly connected to an electromagnet at equal angles, each group of third springs is commonly fixedly connected to the limiting plate, the top of the limiting plate is fixedly connected to the third permanent magnet, the bottom end of the limiting plate is symmetrically fixedly connected to the first connecting plate, and the two first connecting plates are commonly fixedly connected to the magnetic isolation plate.

[0013] Furthermore, each side wall of the arc plate is symmetrically fixedly connected to a first permanent magnet, the inner wall of the second cavity is symmetrically fixedly connected to a second permanent magnet at equal angles, the magnetic isolation plate is located between the first permanent magnet and the second permanent magnet, the inner wall of the second cavity is fixedly connected to multiple groups of fourth springs at equal angles, each group of the fourth springs is commonly fixedly connected to a push plate, and the inner wall of the limit plate is slidably connected to an insert plate, one end of the insert plate is in contact with the side wall of the push plate, and the other end of the insert plate is slidably connected to the second through hole.

[0014] Furthermore, the scraping assembly includes a first positioning plate, which is fixedly connected to the side wall of the insulating protective sleeve. The side wall of the insulating protective sleeve is fixedly connected to a second positioning plate, and the second positioning plate is an L-shaped structure.

[0015] Furthermore, the first positioning plate and the second positioning plate are jointly rotatably connected to a reciprocating screw, the side wall of the reciprocating screw is threadedly connected to a threaded sleeve, the threaded sleeve is in contact with the side wall of the insulating protective sleeve, the side wall of the insulating protective sleeve is provided with a rectangular hole, and the inner wall of the transformer switch is fixedly connected with multiple groups of second teeth at equal angles.

[0016] Furthermore, a third gear is fixedly connected to the side wall of one end of the reciprocating screw, and the third gear is meshed with the second tooth. A second connecting plate is fixedly connected to the side wall of the threaded sleeve, and one end of the second connecting plate is fixedly connected to the first scraper after passing through the rectangular hole. One side wall of the first scraper slides against the side wall of the insulating protective sleeve.

[0017] Furthermore, the inner wall of the transformer switcher is fixedly connected with multiple groups of fixed plates at equal angles, each side wall of the fixed plate is rotatably connected to a rotating rod, one end side wall of the rotating rod is fixedly connected to a support spring, one end of the support spring is fixedly connected to the side wall of the adjacent fixed plate, the other side wall of the rotating rod is fixedly connected to a second scraper, and the tap side wall is symmetrically fixedly connected to a top plate, and each top plate is in contact with the adjacent rotating rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By setting a switching component, when performing voltage switching, the rotating handle drives the disc to rotate, and the first teeth of the inner wall thereof are used to rotate the first gear, which further drives the second gear and the connecting shaft to rotate, so that the fixed shaft drives the switching joint to rotate, realizing the switching of the tap, thereby performing voltage switching, wherein the diameter of the first gear is larger than the second gear, and during the rotation of the first gear, the second gear will rotate faster, so that the fixed shaft and the switching joint rotate synchronously and quickly, realizing fast voltage switching, and reducing the contact time between the tap and the switching joint, reducing arc generation, and avoiding the influence of arc generation; by setting an arc extinguishing component, during the voltage switching process, during the disconnection process, the switching joint is rotating, and when the tap is disengaged from the switching joint, since the support plate and the switching joint are in the same vertical plane, Thus, the wedge plates will move synchronously, wherein the length of the top horizontal section of the inclined slide is greater than the length of the tap, so that when the wedge plates leave the inclined slide, the insulating protective sleeve will drop vertically under the limiting action of the first spring and the limiting rod, so that the insulating protective sleeve is arranged on the outside of the switching joint, and the long arc between the tap and the switching joint is isolated by the insulating protective sleeve to prevent continuous arc generation, wherein the top horizontal section of the inclined slide and the tap are in the same vertical plane; subsequently, during the connection process, when moving to another tap to be connected, the wedge plates will move upwards through the adjacent inclined slide, so that the insulating protective sleeve leaves the switching joint, and the insulating protective sleeve will not be stuck between the tap and the switching joint, and will not affect the transformation switching. By timely insulating the switching joint, the generation of arcs can be effectively reduced;

[0020] By setting up a scraping component, when the insulating protective sleeve is put on the switching joint, during the process of rotating to switch to another tap that needs to be connected, the meshing relationship between the multiple second teeth and the third gear is used to rotate, driving the reciprocating screw to rotate, so that the threaded sleeve drives the first scraper to move up and down to scrape the burnt black blocks on the switching joint, and in the process of disconnecting the tap along the first through hole and retracting to the second cavity, the top plate synchronously moves into the first through hole, and under the elastic action of the supporting spring, pushes the second scraper to scrape along the contact surface of the tap, and in the process of extending the tap, the second scraper pushes the rotating rod to reset as the top plate pushes it, and scrapes the contact surface of the tap for the second time, thereby scraping off the burnt black blocks at the tap. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the voltage transformer switch in the present invention;

[0023] Figure 3 is a cross-sectional view of the voltage transformer switcher of the present invention;

[0024] Figure 4 is a cross-sectional view of the outer wall of the voltage transformer switcher of the present invention;

[0025] Figure 5 Schematic diagram of the structure of the switching component in the present invention;

[0026] Figure 6 A bottom view of the switching assembly of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the switching component and the arc extinguishing component in the present invention;

[0028] Figure 8 Schematic diagram of the structure of the arc extinguishing assembly in the present invention;

[0029] Figure 9 It is a partial structural schematic diagram of the arc extinguishing assembly in the present invention;

[0030] Figure 10 Schematic diagram of the structure of the insulating protective sleeve in the present invention;

[0031] Figure 11 Schematic diagram of the structure of the scraping component of the present invention;

[0032] Figure 12 Schematic diagram of the main structure of the scraping component in the present invention;

[0033] Figure 13 It is a schematic structural diagram of the remaining part of the scraping component in the present invention.

[0034] In the figure: 1. Transformer body; 2. Transformer switch; 21. First cavity; 22. Second cavity; 23. First through hole; 24. Second through hole; 3. Switching assembly; 31. Disc; 32. Rotating handle; 33. First tooth; 34. Rotating shaft; 35. First gear; 36. Connecting shaft; 37. Second gear; 38. Fixed shaft; 39. First mounting ring; 310. Switching joint; 4. Arc extinguishing assembly; 41. Second mounting ring; 42. Support plate; 43. First spring; 44. Wedge plate; 45. Inclined slide; 46. Connecting rod; 47. Insulating protective sleeve; 48. Second spring; 49. Arc plate; 410. Tap; 411 , first permanent magnet; 412, second permanent magnet; 413, electromagnet; 414, third spring; 415, limit plate; 416, third permanent magnet; 417, first connecting plate; 418, magnetic isolation plate; 419, fourth spring; 420, push plate; 421, plug plate; 422, limit rod; 423, rectangular hole; 5, scraping assembly; 51, first positioning plate; 52, second positioning plate; 53, reciprocating screw; 54, third gear; 55, threaded sleeve; 56, second connecting plate; 57, first scraper; 58, fixed plate; 59, rotating rod; 510, support spring; 511, second scraper; 512, top plate; 513, second tooth. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In order to solve the technical problem that manual rotation adjustment is mostly required during the transformer switching process, but the manual rotation speed is slow, which will cause arcing when the switching joint 310 and the tap 410 are disconnected during this period, causing influence, such as Figure 1 - Figure 6 As shown, the following preferred technical solutions are provided:

[0037] An energy-saving and efficiency-enhancing distribution transformer includes a transformer main body 1, a transformer switch 2 is fixedly installed inside the transformer main body 1, a first cavity 21 is opened on the inner top wall of the transformer switch 2, and a switching component 3 is rotatably installed inside the first cavity 21. By setting the switching component 3, when performing voltage switching, the rotating handle 32 is rotated to drive the disc 31 to rotate, and the first teeth 33 on its inner side wall are used to rotate the first gear 35, further driving the second gear 37 and the connecting shaft 36 to rotate, so that the fixed shaft 38 drives the switching joint 310 to rotate, realizing the switching of the tap 410, thereby performing voltage switching, wherein the diameter of the first gear 35 is larger than the second gear 37. During the rotation of the first gear 35, the second gear 37 will rotate faster, so that the fixed shaft 38 and the switching joint 310 rotate synchronously and quickly, realizing fast voltage switching, and reducing the contact time between the tap 410 and the switching joint 310, reducing arc generation, and avoiding the impact of arc generation.

[0038] A second cavity 22 is provided on the inner wall of the transformer switch 2, and an arc extinguishing assembly 4 is installed inside the second cavity 22. By setting the arc extinguishing assembly 4, during the transformer switching process, during the disconnection process, the switching joint 310 rotates, and when the tap 410 is separated from the switching joint 310, since the support plate 42 and the switching joint 310 are in the same vertical plane, the wedge plate 44 will move synchronously, wherein the length of the top horizontal section of the inclined slide 45 is greater than the length of the tap 410, so that when the wedge plate 44 leaves the inclined slide 45, the insulating protective cover 47 will vertically drop under the limiting action of the first spring 43 and the limiting rod 422, so that the insulating protective cover 47 is sleeved on the switching joint. On the outside of the tap 310, the long arc between the tap 410 and the switching joint 310 is isolated by the insulating protective sleeve 47 to avoid continuous arc generation, wherein the top horizontal section of the inclined slide 45 is in the same vertical plane as the tap 410; subsequently, during the connection process, when moving to another tap 410 to be connected, the wedge plate 44 will move upward through the adjacent inclined slide 45, thereby allowing the insulating protective sleeve 47 to leave the switching joint 310, and will not cause the insulating protective sleeve 47 to be stuck between the tap 410 and the switching joint 310, and will not affect the transformation switching. By timely insulating the switching joint 310, the generation of arcs can be effectively reduced.

[0039] In addition, during the disconnection process, as the insulating protective sleeve 47 leaves the inclined slide 45, the second positioning plate 52 releases the limit on the plug plate 421, and under the elastic action of the fourth spring 419, the plug plate 421 is pushed to leave the inside of the limit plate 415, releasing the limit on the limit plate 415, wherein the side wall of the plug plate 421 is fixed with a block, which will not directly penetrate the second through hole 24, and the limit hole opened on the limit plate 415 is set corresponding to the shape of the plug plate 421, and then under the elastic action of the third spring 414, the limit plate 415 and the magnetic isolation plate 418 are driven to move upward, so that the first permanent magnet 4 11 and the second permanent magnet 412 can interact with each other, wherein the magnetic forces between the adjacent surfaces of the first permanent magnet 411 and the second permanent magnet 412 are the same, thereby utilizing the force generated by the repulsion of like magnetic poles to push the arc plate 49 to compress the second spring 48 and move it into the second cavity 22, so that the tap 410 is disconnected from the switching joint 310 in time, avoiding the tap 410 and the switching joint 310 from always being in contact during the disconnection process, wherein the elastic force of the second spring 48 is less than the magnetic force between the first permanent magnet 411 and the second permanent magnet 412. By disconnecting in time, the generation of arcs can be effectively reduced.

[0040] During the connection process, when the switching connector 310 moves to the other tap 410 that needs to be connected, when the wedge plate 44 moves on the adjacent inclined slide 45, the electromagnet 413 is energized, wherein the adjacent surface magnetic poles of the electromagnet 413 and the third permanent magnet 416 are the same, and the electromagnetic force generated by the electromagnet 413 is used to push the third permanent magnet 416 downward, so that the limit plate 415 and the magnetic isolation plate 418 move downward synchronously. At this time, the limit hole opened on the limit plate 415 is at the same horizontal position as the plug plate 421, wherein the elastic force of the third spring 414 is less than the electromagnetic force of the electromagnet 413 and the third permanent magnet 416, and it moves continuously with the insulating protective cover 47, so that the second positioning plate 52 and The oblique section of the plug plate 421 contacts, thereby pushing the plug plate 421 back into the second cavity 22, and causing the plug plate 421 to limit the limit plate 415. At this time, the electromagnet 413 is powered off, so that the magnetic isolation plate 418 is located between the first permanent magnet 411 and the second permanent magnet 412 to isolate the electromagnetic field, so that under the elastic action of the second spring 48, the arc plate 49 and the tap 410 are pushed to reset, so that the tap 410 pops out and contacts the switching joint 310 for connection. Compared with the existing surface contact, an arc will be generated, causing an impact. This solution is set to automatically pop out when it moves to the tap 410 to be connected, for docking and connection, reducing arc generation and improving practicality.

[0041] A scraping assembly 5 is fixedly installed at equal angles on the inner wall of the transformer switch 2. By setting the scraping assembly 5, when the insulating protective sleeve 47 is sleeved on the switching joint 310, during the process of rotating to switch to another tap 410 to be connected, the meshing relationship between the plurality of second teeth 513 and the third gear 54 is utilized to rotate the third gear 54. After the insulating protective sleeve 47 is sleeved on the switching joint 310, the second teeth 513 and the third gear 54 are at the same horizontal height, so that they can mesh during the movement. The rotation of the third gear 54 drives the reciprocating screw 53 to rotate, so that the threaded sleeve 55 drives the first scraper 57 to reciprocate up and down to scrape the burnt black blocks on the switching joint 310. In addition, in the process of disconnecting the tap 410 and retracting it along the first through hole 23 to the second cavity 22, the top plate 512 moves synchronously into the first through hole 23. During this process, the top plate 512 slowly releases the limit on the rotating rod 59, thereby pushing the second scraper 511 to scrape along the contact surface of the tap 410 under the elastic action of the support spring 510, and in the process of extending the tap 410, the second scraper 511 pushes the rotating rod 59 to reset as the top plate 512 pushes it, and then scrapes the contact surface of the tap 410 for the second time, thereby scraping off the burnt black block at the tap 410, wherein the second scraper 511 and the support spring 510 are both inclined at forty-five degrees, so that the second scraper 511 has a better scraping effect on the tap 410.

[0042] The switching assembly 3 includes a disc 31, which is rotatably connected to the inner top wall of the first cavity 21. A plurality of first teeth 33 are fixedly connected to the inner wall of the disc 31 at equal angles. A rotating handle 32 is fixedly connected to the top of the disc 31. One end of the rotating handle 32 passes through the inner top wall of the first cavity 21 and extends to the outside of the transformer switcher 2. A rotating shaft 34 is symmetrically fixedly connected to the inner bottom wall of the first cavity 21, and a connecting shaft 36 is rotatably connected to the inner bottom wall of the first cavity 21.

[0043] Each side wall of the rotating shaft 34 is fixedly connected to a first gear 35, and each first gear 35 is meshed with the first tooth 33. A second gear 37 is fixedly connected to the side wall of one end of the connecting shaft 36, and each first gear 35 is meshed with the second gear 37. The other end of the connecting shaft 36 is fixedly connected to a fixed shaft 38, and a first mounting ring 39 is fixedly connected to the side wall of one end of the fixed shaft 38. The side wall of the first mounting ring 39 is fixedly connected to the switching joint 310.

[0044] In this solution: when performing voltage switching, the rotating handle 32 is rotated to drive the disc 31 to rotate, and the first teeth 33 on its inner wall are used to rotate the first gear 35, further driving the second gear 37 and the connecting shaft 36 to rotate, so that the fixed shaft 38 drives the switching joint 310 to rotate, realizing the switching of the tap 410, thereby performing voltage switching. The diameter of the first gear 35 is larger than that of the second gear 37. During the rotation of the first gear 35, the second gear 37 will rotate faster, so that the fixed shaft 38 and the switching joint 310 rotate synchronously and quickly, realizing fast voltage switching, and reducing the contact time between the tap 410 and the switching joint 310, reducing arc generation, and avoiding the impact of arc generation.

[0045] In order to solve the technical problem that during the voltage switching process, the switching joint 310 and the tap 410 are in surface contact, thereby inevitably generating an arc during the disconnection and contact process, and the arc will affect the normal operation of the transformer, such as Figure 7 - Figure 9 As shown, the following preferred technical solutions are provided:

[0046] The arc extinguishing assembly 4 includes a second mounting ring 41, which is fixedly connected to the side wall of the other end of the fixed shaft 38. The side wall of the second mounting ring 41 is fixedly connected to a support plate 42. The inner wall of the transformer switcher 2 is fixedly connected to multiple inclined slides 45 at equal angles. The inner wall of the second cavity 22 is provided with a first through hole 23 and a second through hole 24 at equal angles. The first through hole 23 and the second through hole 24 are in the same vertical plane. The inner wall of the second cavity 22 is symmetrically fixedly connected to multiple groups of second springs 48 at equal angles.

[0047] The bottom end of the support plate 42 is symmetrically fixedly connected to a plurality of first springs 43, and the plurality of first springs 43 are commonly fixedly connected to a wedge plate 44. The bottom end of the support plate 42 is fixedly connected to a limit rod 422, and one end of the limit rod 422 is slidably connected to the wedge plate 44. The wedge plate 44 is slidably connected to the top of the inclined slide 45. The bottom end of the wedge plate 44 is symmetrically fixedly connected to a connecting rod 46. The two connecting rods 46 are commonly fixedly connected to an insulating protective sleeve 47. Each group of second springs 48 are commonly fixedly connected to the arc plate 4 9. The side wall of the arc-shaped plate 49 is fixedly connected with a tap 410, which slides through the adjacent first through hole 23. A plurality of groups of third springs 414 are symmetrically fixedly connected at equal angles to the top wall of the second cavity 22. The top wall of the second cavity 22 is fixedly connected with an electromagnet 413 at equal angles. Each group of third springs 414 is commonly fixedly connected to a limiting plate 415. The bottom end of the limiting plate 415 is symmetrically fixedly connected to a first connecting plate 417. The two first connecting plates 417 are commonly fixedly connected to a magnetic isolation plate 418.

[0048] The side walls of each arc-shaped plate 49 are symmetrically fixedly connected with the first permanent magnet 411, the inner wall of the second cavity 22 is symmetrically fixedly connected with the second permanent magnet 412 at equal angles, the magnetic isolation plate 418 is located between the first permanent magnet 411 and the second permanent magnet 412, the inner wall of the second cavity 22 is fixedly connected with multiple groups of fourth springs 419 at equal angles, each group of fourth springs 419 is commonly fixedly connected with a push plate 420, and the inner wall of the limit plate 415 is slidably connected with an insert plate 421, one end of the insert plate 421 is in contact with the side wall of the push plate 420, and the other end of the insert plate 421 is slidably connected with the second through hole 24.

[0049] In this solution, during the voltage switching process and the disconnection process, the switching joint 310 rotates, and when the tap 410 is separated from the switching joint 310, since the support plate 42 and the switching joint 310 are in the same vertical plane, the wedge plate 44 will move synchronously, wherein the length of the top horizontal section of the inclined slide 45 is greater than the length of the tap 410, so that when the wedge plate 44 leaves the inclined slide 45, the insulating protective sleeve 47 will vertically drop under the limiting effect of the first spring 43 and the limiting rod 422, so that the insulating protective sleeve 47 is sleeved on the outside of the switching joint 310, and the tap 410 is protected by the insulating protective sleeve 47. 10 and the switching joint 310 to prevent the long arc from continuing to occur, wherein the top horizontal section of the inclined slide 45 is in the same vertical plane as the tap 410; subsequently, during the connection process, when moving to the other tap 410 to be connected, the wedge plate 44 will move upward via the adjacent inclined slide 45, thereby allowing the insulating protective sleeve 47 to leave the switching joint 310, and will not cause the insulating protective sleeve 47 to be stuck between the tap 410 and the switching joint 310, and will not affect the transformation switching. By timely insulating the switching joint 310, the generation of arcs can be effectively reduced;

[0050] During the disconnection process, as the insulating protective sleeve 47 leaves the inclined slide 45, the second positioning plate 52 releases the limit on the plug plate 421, and under the elastic action of the fourth spring 419, the plug plate 421 is pushed to leave the inside of the limit plate 415, releasing the limit on the limit plate 415, wherein the side wall of the plug plate 421 is fixed with a block, which will not directly penetrate the second through hole 24, and the limit hole opened on the limit plate 415 is set corresponding to the shape of the plug plate 421, and then under the elastic action of the third spring 414, the limit plate 415 and the magnetic isolation plate 418 are driven to move upward, so that the first permanent magnet 41 1 and the second permanent magnet 412 can interact with each other. The magnetic forces between the adjacent surfaces of the first permanent magnet 411 and the second permanent magnet 412 are the same. Therefore, the force generated by the repulsion of like magnetic poles is used to push the arc plate 49 to compress the second spring 48 and move it into the second cavity 22, so that the tap 410 is disconnected from the switching connector 310 in time, avoiding the tap 410 and the switching connector 310 from always being in contact during the disconnection process. The elastic force of the second spring 48 is smaller than the magnetic force between the first permanent magnet 411 and the second permanent magnet 412. By disconnecting in time, the generation of arcs can be effectively reduced.

[0051] During the connection process, when the switching connector 310 moves to the other tap 410 that needs to be connected, when the wedge plate 44 moves on the adjacent inclined slide 45, the electromagnet 413 is energized, wherein the adjacent surface magnetic poles of the electromagnet 413 and the third permanent magnet 416 are the same, and the electromagnetic force generated by the electromagnet 413 is used to push the third permanent magnet 416 downward, so that the limit plate 415 and the magnetic isolation plate 418 move downward synchronously. At this time, the limit hole opened on the limit plate 415 is at the same horizontal position as the plug plate 421, wherein the elastic force of the third spring 414 is less than the electromagnetic force of the electromagnet 413 and the third permanent magnet 416, and it moves continuously with the insulating protective cover 47, so that the second positioning plate 52 and The oblique section of the plug plate 421 contacts, thereby pushing the plug plate 421 back into the second cavity 22, and causing the plug plate 421 to limit the limit plate 415. At this time, the electromagnet 413 is powered off, so that the magnetic isolation plate 418 is located between the first permanent magnet 411 and the second permanent magnet 412 to isolate the electromagnetic field, so that under the elastic action of the second spring 48, the arc plate 49 and the tap 410 are pushed to reset, so that the tap 410 pops out and contacts the switching joint 310 for connection. Compared with the existing surface contact, an arc will be generated, causing an impact. This solution is set to automatically pop out when it moves to the tap 410 to be connected, for docking and connection, reducing arc generation and improving practicality.

[0052] In order to solve the technical problem that the contact surface of the tap 410 and the switching joint 310 is burned and produces black blocks due to the influence of arc during the transformation process, if these black blocks are not handled in time, they will affect the conductor properties of the tap 410 and the switching joint 310 and affect the normal operation of the transformer, such as Figure 10- Figure 13 As shown, the following preferred technical solutions are provided:

[0053] The scraping assembly 5 includes a first positioning plate 51 , which is fixedly connected to the side wall of the insulating protective sleeve 47 . The side wall of the insulating protective sleeve 47 is fixedly connected to a second positioning plate 52 , which is an L-shaped structure.

[0054] The first positioning plate 51 and the second positioning plate 52 are connected to the reciprocating screw 53 for rotation together. The side wall of the reciprocating screw 53 is threadedly connected to a threaded sleeve 55. The threaded sleeve 55 is in contact with the side wall of the insulating protective sleeve 47. The side wall of the insulating protective sleeve 47 is provided with a rectangular hole 423. The inner wall of the transformer switcher 2 is fixedly connected with multiple groups of second teeth 513 at equal angles.

[0055] One end side wall of the reciprocating screw 53 is fixedly connected to the third gear 54, and the third gear 54 is meshed with the second tooth 513. The side wall of the threaded sleeve 55 is fixedly connected to the second connecting plate 56. One end of the second connecting plate 56 passes through the rectangular hole 423 and is fixedly connected to the first scraper 57. One side wall of the first scraper 57 slides against the side wall of the insulating protective sleeve 47.

[0056] A plurality of fixed plates 58 are fixedly connected at equal angles to the inner wall of the transformer switch 2, and a rotating rod 59 is rotatably connected to the side wall of each fixed plate 58. A support spring 510 is fixedly connected to the side wall of one end of the rotating rod 59, and one end of the support spring 510 is fixedly connected to the side wall of the adjacent fixed plate 58. A second scraper 511 is fixedly connected to the side wall of the other side of the rotating rod 59, and a top plate 512 is symmetrically fixedly connected to the side wall of the tap 410, and each top plate 512 is in contact with the adjacent rotating rod 59.

[0057] In this solution: after the insulating protective sleeve 47 is sleeved on the switching joint 310, during the process of rotating to switch to another tap 410 to be connected, the meshing relationship between the plurality of second teeth 513 and the third gear 54 is used to rotate the third gear 54, wherein after the insulating protective sleeve 47 is sleeved on the switching joint 310, the second teeth 513 and the third gear 54 are at the same horizontal height, so that they can be meshed during the movement, and the reciprocating screw 53 is driven to rotate by the rotation of the third gear 54, so that the threaded sleeve 55 drives the first scraper 57 to reciprocate up and down, scraping off the burnt black block on the switching joint 310, and disconnecting the tap 410 along the first During the process of a through hole 23 retracting to the second cavity 22, the top plate 512 synchronously moves into the first through hole 23. During this process, the top plate 512 slowly releases the limit on the rotating rod 59, so that under the elastic action of the support spring 510, the second scraper 511 is pushed to scrape along the contact surface of the tap 410, and during the process of the tap 410 extending, the second scraper 511 pushes the rotating rod 59 to reset as the top plate 512 pushes it, and then scrapes the contact surface of the tap 410 for the second time, thereby scraping off the burnt black block at the tap 410, wherein the second scraper 511 and the support spring 510 are both inclined at forty-five degrees, so that the second scraper 511 has a better scraping effect on the tap 410.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and efficiency-enhancing distribution transformer, comprising a transformer body (1), characterized in that: A transformer switch (2) is fixedly installed inside the transformer body (1); a first cavity (21) is provided on the inner top wall of the transformer switch (2); a switching assembly (3) is rotatably installed inside the first cavity (21); a second cavity (22) is provided on the inner side wall of the transformer switch (2); an arc extinguishing assembly (4) is installed inside the second cavity (22); and a scraping assembly (5) is fixedly installed at an equal angle on the inner side wall of the transformer switch (2); The arc extinguishing assembly (4) includes a second mounting ring (41), the side wall of the second mounting ring (41) is fixedly connected to a support plate (42), the bottom end of the support plate (42) is symmetrically fixedly connected to a plurality of first springs (43), the plurality of first springs (43) are commonly fixedly connected to a wedge plate (44), the bottom end of the wedge plate (44) is symmetrically fixedly connected to a connecting rod (46), the two connecting rods (46) are commonly fixedly connected to an insulating protective sleeve (47), the scraping assembly (5) includes a first positioning plate (51), the first positioning plate (51) is fixedly connected to the side wall of the insulating protective sleeve (47), the side wall of the insulating protective sleeve (47) is fixedly connected to a second positioning plate (52), and the second positioning plate (52) is an L-shaped structure; The first positioning plate (51) and the second positioning plate (52) are rotatably connected to a reciprocating screw (53), a threaded sleeve (55) is threadedly connected to the side wall of the reciprocating screw (53), the threaded sleeve (55) is in contact with the side wall of the insulating protective sleeve (47), a rectangular hole (423) is provided on the side wall of the insulating protective sleeve (47), and a plurality of groups of second teeth (513) are fixedly connected at equal angles to the inner wall of the voltage transformer switch (2); A third gear (54) is fixedly connected to a side wall of one end of the reciprocating screw (53), and the third gear (54) is meshed with the second tooth (513). A second connecting plate (56) is fixedly connected to the side wall of the threaded sleeve (55), and one end of the second connecting plate (56) passes through the rectangular hole (423) and is fixedly connected to a first scraper (57). A side wall of one side of the first scraper (57) slides against a side wall of the insulating protective sleeve (47).

2. The energy-saving and efficiency-enhancing distribution transformer according to claim 1, characterized in that: The switching assembly (3) includes a disk (31), the disk (31) is rotatably connected to the inner top wall of the first cavity (21), a plurality of first teeth (33) are fixedly connected to the inner wall of the disk (31) at equal angles, a rotating handle (32) is fixedly connected to the top of the disk (31), one end of the rotating handle (32) passes through the inner top wall of the first cavity (21) and extends to the outside of the voltage transformer switch (2), a rotating shaft (34) is symmetrically fixedly connected to the inner bottom wall of the first cavity (21), and a connecting shaft (36) is rotatably connected to the inner bottom wall of the first cavity (21).

3. The energy-saving and efficiency-enhancing distribution transformer according to claim 2, characterized in that: The side wall of each rotating shaft (34) is fixedly connected to a first gear (35), and each first gear (35) is meshed with the first tooth (33). The side wall of one end of the connecting shaft (36) is fixedly connected to a second gear (37), and each first gear (35) is meshed with the second gear (37). The other end of the connecting shaft (36) is fixedly connected to a fixed shaft (38), and the side wall of one end of the fixed shaft (38) is fixedly connected to a first mounting ring (39). The side wall of the first mounting ring (39) is fixedly connected to a switching joint (310).

4. The energy-saving and efficiency-enhancing distribution transformer according to claim 3, characterized in that: The second mounting ring (41) is fixedly connected to the side wall of the other end of the fixed shaft (38); the inner wall of the voltage transformer switch (2) is fixedly connected with a plurality of inclined slides (45) at equal angles; the inner wall of the second cavity (22) is provided with a first through hole (23) and a second through hole (24) at equal angles; the first through hole (23) and the second through hole (24) are located in the same vertical plane; the inner wall of the second cavity (22) is symmetrically fixedly connected with a plurality of second springs (48) at equal angles.

5. The energy-saving and efficiency-enhancing distribution transformer according to claim 4, characterized in that: The bottom end of the support plate (42) is fixedly connected to a limiting rod (422), one end of the limiting rod (422) is slidably connected to a wedge plate (44), and the wedge plate (44) is slidably connected to the top of the inclined slide plate (45). Each group of the second springs (48) is fixedly connected to an arc plate (49), and a tap (410) is fixedly connected to the side wall of the arc plate (49). The tap (410) slides through the adjacent first through hole (23), and the second cavity (22) is fixedly connected to the second spring (48). The top wall is symmetrically and fixedly connected with multiple groups of third springs (414) at equal angles, the inner top wall of the second cavity (22) is fixedly connected with an electromagnet (413) at equal angles, each group of the third springs (414) is fixedly connected with a limiting plate (415), the top of the limiting plate (415) is fixedly connected with a third permanent magnet (416), the bottom of the limiting plate (415) is symmetrically and fixedly connected with a first connecting plate (417), and the two first connecting plates (417) are fixedly connected with a magnetic isolation plate (418) at the same time.

6. The energy-saving and efficiency-enhancing distribution transformer according to claim 5, characterized in that: The side wall of each arc-shaped plate (49) is symmetrically fixedly connected with a first permanent magnet (411), the inner wall of the second cavity (22) is symmetrically fixedly connected with a second permanent magnet (412) at an equal angle, the magnetic isolation plate (418) is located between the first permanent magnet (411) and the second permanent magnet (412), the inner wall of the second cavity (22) is symmetrically fixedly connected with a plurality of groups of fourth springs (419) at an equal angle, each group of the fourth springs (419) is fixedly connected with a push plate (420), the inner wall of the limit plate (415) is slidably connected with an insert plate (421), one end of the insert plate (421) is in contact with the side wall of the push plate (420), and the other end of the insert plate (421) is slidably connected with the second through hole (24).

7. The energy-saving and efficiency-enhancing distribution transformer according to claim 5, characterized in that: The inner wall of the voltage transformer switch (2) is fixedly connected to a plurality of fixed plates (58) at equal angles, and the side wall of each fixed plate (58) is rotatably connected to a rotating rod (59), and one end of the side wall of the rotating rod (59) is fixedly connected to a supporting spring (510), and one end of the supporting spring (510) is fixedly connected to the side wall of an adjacent fixed plate (58), and the other side wall of the rotating rod (59) is fixedly connected to a second scraper (511), and the side wall of the tap (410) is symmetrically fixedly connected to a top plate (512), and each top plate (512) is in contact with an adjacent rotating rod (59).

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