A dry-type transformer for preventing coil loosening

Abstract

The present invention discloses a dry-type transformer for preventing coil loosening, comprising two support bases, two connecting plates fixedly connected between the two support bases, two iron cores and two coil windings installed between the two support bases, the two coil windings respectively sleeved on the two iron cores, two rotating rings rotatably connected to opposite sides of the two support bases, one side of each of the four rotating rings is provided with an annular groove, and the inner walls of the four annular grooves are fixedly connected with trapezoidal blocks distributed in an annular manner. This invention can clamp the coil winding in multiple directions in the transverse direction, effectively reducing the deformation of the coil winding in the transverse direction, thereby effectively improving the effect of preventing the coil winding from loosening, and can very conveniently and quickly disassemble the structure for clamping the coil winding, thereby facilitating the user to maintain the coil winding and improving the practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer capable of preventing coils from loosening. Background Art

[0002] A dry-type transformer is one whose core and windings are not immersed in insulating oil. During operation, the coils may become loose due to electromagnetic forces, vibration, thermal expansion, and contraction. This can affect transformer performance, reduce efficiency, and even cause failure.

[0003] Setting up an anti-coil loosening mechanism on a dry-type transformer can effectively prevent the coil from loosening, affecting the performance of the transformer, reducing efficiency, and even causing malfunctions. The common anti-coil loosening mechanism applies downward pressure to the top of the coil winding, causing the coil winding to shrink after being compressed and eventually return to a tightly wound state. This method can only control the deformation in the upper and lower vertical directions when in use to achieve the effect of preventing the coil from loosening. During the use of the dry-type transformer, the coil winding is also prone to deformation in the horizontal direction. The common anti-coil loosening mechanism is not ideal in use and may even aggravate the loosening of the coil. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a dry-type transformer that prevents coil loosening, effectively reducing the deformation of the coil winding in the lateral direction and improving the effect of preventing coil winding loosening.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The cam is secured to the chassis and has two camshafts, each of which is secured to a position 100 meters high and has a locking plate, each of which is secured to a position 100 meters high and has a locking plate, each of which is secured to a position 100 meters high.

[0007] As a further description of the above technical solution:

[0008] The driving mechanism includes two slide grooves, and the two slide grooves are respectively opened on opposite sides of the two support seats. A movable plate is slidably connected between the two slide grooves, and a screw rod is rotatably connected between the two connecting plates. The back side of the back connecting plate is fixedly connected with a motor, and the output shaft of the motor passes through the back connecting plate and is fixedly connected to the screw rod. The movable plate is sleeved on the screw rod and threadedly connected to it. The top and bottom of the movable plate are fixedly connected to two racks, and the outer sides of the four rotating rings are provided with gear rings meshing with the racks.

[0009] As a further description of the above technical solution:

[0010] One end of the slide rod is rotatably connected to a roller, and the outer side of the roller contacts the inner wall of the annular groove.

[0011] As a further description of the above technical solution:

[0012] A limiting ring is embedded in one side of the support seat, and one side of the limiting ring is fixedly connected to the rotating ring.

[0013] As a further description of the above technical solution:

[0014] A spring is fixedly connected to the inner wall of the groove, and the other end of the spring is in contact with the clamping plate.

[0015] As a further description of the above technical solution:

[0016] The splint is provided with a segmented groove, the inner wall of the segmented groove is slidably connected to a connecting block, one side of the connecting block is inserted with two screws slidably connected thereto, and one end of the two screws is inserted into the splint and threadedly connected thereto.

[0017] As a further description of the above technical solution:

[0018] The top and the bottom of the connecting block are both fixedly connected to the limiting blocks, and the inner wall of the segmented groove is provided with two limiting grooves which are slidably connected to the limiting blocks.

[0019] As a further description of the above technical solution:

[0020] The front side of the connecting plate is fixedly connected with a controller, a signal receiver and a signal transmitter.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] This solution can clamp the coil winding in multiple directions in the transverse direction, effectively reducing the deformation of the coil winding in the transverse direction, thereby effectively improving the effect of loosening the coil winding, and can very conveniently and quickly disassemble the structure used to clamp the coil winding, thereby facilitating the user to maintain the coil winding and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the three-dimensional diagrams of the present invention;

[0024] Figure 2 This is the second stereogram of the present invention;

[0025] Figure 3 is a cross-sectional view of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged view of part A in the middle;

[0027] Figure 5 This is a diagram showing the position relationship between the trapezoidal block and the sliding rod in the present invention.

[0028] Description of the numbers in the figure:

[0029] 1. Support seat; 2. Connecting plate; 3. Iron core; 4. Coil winding; 5. Rotating ring; 6. Ring groove; 7. Trapezoidal block; 8. Groove; 9. Clamp; 10. Slide rod; 11. Driving mechanism; 111. Slide groove; 112. Moving plate; 113. Screw; 114. Motor; 115. Rack; 12. Roller; 13. Limiting ring; 14. Spring; 15. Segmented groove; 16. Connecting block; 17. Screw; 18. Limiting block; 19. Limiting groove; 20. Controller; 21. Signal receiver; 22. Signal transmitter. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] See also Figures 1 to 5, the present invention: a dry-type transformer for preventing coil loosening, comprising two support bases 1, two connecting plates 2 fixedly connected between the two support bases 1, two iron cores 3 and two coil windings 4 installed between the two support bases 1, the two coil windings 4 are respectively sleeved on the two iron cores 3, the opposite sides of the two support bases 1 are rotatably connected to two rotating rings 5, one side of the four rotating rings 5 ​​is provided with an annular groove 6, the inner walls of the four annular grooves 6 are fixedly connected with an annularly distributed trapezoidal block 7, the opposite side of the two support bases 1 is provided with an annularly distributed groove 8, the outer sides of the two coil windings 4 are provided with an annularly distributed clamping plate 9, the top and bottom of the two groups of clamping plates 9 are respectively slidably connected to the inner walls of the four groups of grooves 8, one side of the two groups of clamping plates 9 is fixedly connected to two sliding rods 10, one end of the four groups of sliding rods 10 are respectively located at Inside the four ring grooves 6, a driving mechanism 11 is provided between the two connecting plates 2; the front side of the front connecting plate 2 is fixedly connected to a controller 20, a signal receiver 21 and a signal transmitter 22; the driving mechanism 11 includes two slide grooves 111, and the two slide grooves 111 are respectively opened on opposite sides of the two support seats 1, a movable plate 112 is slidably connected between the two slide grooves 111, a screw rod 113 is rotatably connected between the two connecting plates 2, and a motor 114 is fixedly connected to the back side of the back connecting plate 2, and the output shaft of the motor 114 passes through the back connecting plate 2 and is fixedly connected to the screw rod 113, the movable plate 112 is sleeved on the screw rod 113 and is threadedly connected to it, the top and bottom of the movable plate 112 are fixedly connected to two racks 115, and the outer sides of the four rotating rings 5 ​​are provided with gear rings meshing with the racks 115.

[0032] In the present invention, the connecting plate 2 is used to connect the two support bases 1, and the two support bases 1 are used to limit the vertical direction of the coil winding 4 to prevent the coil winding 4 from being deformed and loosened in the vertical direction.

[0033] The user turns on the motor 114 to drive the screw rod 113 to rotate. The screw rod 113 is threadedly connected to the movable plate 112. Therefore, after the motor 114 is started, it will drive the movable plate 112 to slide along the slide groove 111. During the movement of the movable plate 112, the rack 115 will move. After the rack 115 moves, it will drive the rotating ring 5 to rotate through the gear ring provided on the outside of the rotating ring 5. After the rotating ring 5 rotates, the slide rod 10 will move relatively in the ring groove 6. The slide rod 10 will first contact the inclined surface of the trapezoidal block 7. As ... The rod 10 will slide onto the inclined surface of the trapezoidal block 7, and the trapezoidal block 7 will push the slide rod 10, which will then drive the splint 9 to move. The splint 9 will approach the coil winding 4 along the inner wall of the groove 8 until the splint 9 is in close contact with the coil winding 4, thereby achieving the effect of tightening the coil winding 4. The splint 9 is evenly distributed in a ring shape on the outside of the coil winding 4, and can limit the coil winding 4 in multiple lateral directions, effectively avoiding the lateral deformation of the coil winding 4 and reducing the loosening of the coil winding 4.

[0034] The user can send instructions to the signal receiver 21 through the terminal device, and then the controller 20 will start and close the control motor 114, thereby achieving the purpose of remote control to adjust the force of the loosening mechanism of the dry-type transformer coil winding 4, thereby improving the practicality of the device.

[0035] See also Figure 4 , wherein: one end of the slide rod 10 is rotatably connected to a roller 12 , and the outer side of the roller 12 contacts the inner wall of the annular groove 6 .

[0036] In the present invention, the roller 12 rotatably connected to one end of the slide rod 10 can effectively reduce friction, improve the smoothness of the device operation, reduce wear and tear, and increase the service life of the device.

[0037] See also Figure 4 , wherein: a limiting ring 13 is embedded on one side of the support seat 1 , and one side of the limiting ring 13 is fixedly connected to the rotating ring 5 .

[0038] In the present invention, the setting of the limiting ring 13 can limit the rotating ring 5, thereby improving the stability of the device.

[0039] See also Figure 4 , wherein: a spring 14 is fixedly connected to the inner wall of the groove 8 , and the other end of the spring 14 is in contact with the splint 9 .

[0040] In the present invention, the setting of the spring 14 allows the slide bar 10 on the splint 9 to always contact the inner wall of the annular groove 6 or the trapezoidal block 7, so that the position of the splint 9 can be better controlled by the motor 114, thereby improving the practicality of the device.

[0041] See also Figure 4, wherein: a segmented groove 15 is opened on the splint 9, and a connecting block 16 is slidably connected to the inner wall of the segmented groove 15. Two screws 17 slidably connected to one side of the connecting block 16 are inserted, and one end of the two screws 17 are inserted into the splint 9 and threadedly connected to it.

[0042] In the present invention, the setting of the segmented groove 15 can divide the splint 9 into two parts, and the connecting block 16 and the screw 17 can connect the splint 9 that is divided into two parts. The user can remove the connecting block 16 by rotating the screw 17. At this time, the splint 9 will be divided into two parts. The user can remove the splint 9 divided into two parts, and then leave space for the user to observe the coil winding 4, which is convenient for the user to maintain the coil winding 4 and improve the practicality of the device.

[0043] See also Figure 4 , wherein: the top and bottom of the connecting block 16 are fixedly connected to the limiting block 18, and the inner wall of the segmented groove 15 is provided with two limiting grooves 19 slidably connected to the limiting block 18.

[0044] In the present invention, the use of the limiting block 18 and the limiting groove 19 can limit the connection between the connecting block 16 and the clamping plate 9, which is beneficial to improve the connection stability of the clamping plate 9 after segmentation and maintain the clamping effect of the clamping plate 9 on the coil winding 4.

[0045] The above are only preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A dry-type transformer for preventing coil loosening, comprising two support bases (1), characterized in that: Two connecting plates (2) are fixedly connected between the two support seats (1), two iron cores (3) and two coil windings (4) are installed between the two support seats (1), and the two coil windings (4) are respectively sleeved on the two iron cores (3). Two rotating rings (5) are rotatably connected to the opposite sides of the two support seats (1), and one side of the four rotating rings (5) is provided with an annular groove (6). The inner walls of the four annular grooves (6) are fixedly connected with an annularly distributed trapezoidal block (7). The opposite side of the two support seats (1) is provided with an annularly distributed groove (8). The outer sides of the two coil windings (4) are provided with an annularly distributed clamping plate (9), and the top and bottom of the two groups of clamping plates (9) are respectively slidably connected to the inner walls of the four groups of grooves (8). One side of the two groups of clamping plates (9) is fixedly connected to two sliding rods (10), and one end of the four groups of sliding rods (10) is respectively located inside the four annular grooves (6). A driving mechanism (11) is provided between the two connecting plates (2); One end of the slide rod (10) is rotatably connected to a roller (12), and the outer side of the roller (12) contacts the inner wall of the annular groove (6); A limiting ring (13) is embedded in one side of the support seat (1), and one side of the limiting ring (13) is fixedly connected to the rotating ring (5); A spring (14) is fixedly connected to the inner wall of the groove (8), and the other end of the spring (14) is in contact with the clamping plate (9).

2. The dry-type transformer for preventing coil loosening according to claim 1, characterized in that: The driving mechanism (11) includes two slide grooves (111), the two slide grooves (111) are respectively opened on opposite sides of the two support seats (1), a movable plate (112) is slidably connected between the two slide grooves (111), a screw rod (113) is rotatably connected between the two connecting plates (2), a motor (114) is fixedly connected to the back of the connecting plate (2), an output shaft of the motor (114) passes through the back connecting plate (2) and is fixedly connected to the screw rod (113), the movable plate (112) is sleeved on the screw rod (113) and is threadedly connected thereto, the top and bottom of the movable plate (112) are fixedly connected to two racks (115), and the outer sides of the four rotating rings (5) are each provided with a gear ring meshing with the racks (115).

3. The dry-type transformer for preventing coil loosening according to claim 1, characterized in that: The splint (9) is provided with a segmented groove (15), and the inner wall of the segmented groove (15) is slidably connected to a connecting block (16). Two screw rods (17) slidably connected to the connecting block (16) are inserted on one side of the connecting block (16), and one end of the two screw rods (17) are inserted on the splint (9) and threadedly connected to the splint (9).

4. The dry-type transformer for preventing coil loosening according to claim 3, characterized in that: The top and bottom of the connecting block (16) are fixedly connected to the limiting block (18), and the inner wall of the segmented groove (15) is provided with two limiting grooves (19) that are slidably connected to the limiting block (18).

5. The dry-type transformer for preventing coil loosening according to claim 1, characterized in that: A controller (20), a signal receiver (21) and a signal transmitter (22) are fixedly connected to the front side of the connecting plate (2).

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