Dry-type transformer high-voltage coil tapping lead terminal with improved structure

Abstract

The utility model relates to the technical field of dry-type transformer high-voltage coils, and discloses a dry-type transformer high-voltage coil tapping lead terminal with an improved structure, which comprises an outer frame, the top of the outer frame is provided with a movable cover plate, the bottom end in the outer frame is fixedly connected with an inner connecting seat, a base is arranged above the inner connecting seat, and the inner connecting seat is fixedly connected with the base. A fixing assembly convenient to combine is arranged between the outer frame and the movable cover plate. According to the dry-type transformer high-voltage coil tapping lead terminal with the improved structure, the first sealing layer, the second sealing layer, the connecting seat, the limiting pull rod, the external connecting rod and the limiting ferrule are arranged, so that the firmness between the movable cover plate and the outer frame is enhanced, the flexibility between the structures is optimized, the structures can be conveniently and rapidly disassembled in the follow-up process for detection and maintenance, and the service life of the dry-type transformer high-voltage coil tapping lead terminal is prolonged. The utility model discloses a tapping lead terminal, and solves the problems that the tapping lead terminal adopts a wrapping structure for complete coverage, but internal parts are inconvenient to disassemble and replace due to structure immobilization, the subsequent maintenance cost is high, and the disassembly time is long.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type high-voltage coils, in particular to a dry-type high-voltage coil tapping lead terminal with an improved structure. Background Art

[0002] The dry-type transformer coil is an important component installed in the dry-type transformer. It is usually wound into a coil with copper or aluminum wire to adjust the voltage and transfer electric energy. When the current passes through the transformer, the magnetic field of the iron core will induce the current in the coil, causing it to produce a potential difference. The electric energy generates a magnetic field in the coil and forms a magnetic flux in the iron core. The change in magnetic flux will induce a potential difference in another set of coils, thereby transferring the electric energy to the output end.

[0003] Currently, the tap lead terminals are fully covered with a wrapping structure, but the fixed structure is not convenient for disassembly and replacement of internal parts, the subsequent maintenance cost is high, and the disassembly time is long.

[0004] Therefore, a novel dry-type transformer high voltage coil tapping lead terminal with an improved structure is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a dry-type high-voltage coil tap lead terminal with an improved structure to solve the problem that the tap lead terminal proposed in the above-mentioned background technology adopts a wrapping structure for comprehensive coverage, but the fixed structure is not convenient for disassembly and replacement of internal parts, the subsequent maintenance cost is high, and the disassembly time is long.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dry-type high-voltage coil tapping lead terminal with an improved structure, comprising an outer frame, a movable cover plate is arranged on the top of the outer frame, an inner connection seat is fixedly connected to the bottom end of the inner part of the outer frame, a base is arranged above the inner connection seat, and a fixing component is arranged between the outer frame and the movable cover plate for facilitating assembly;

[0007] The fixing assembly includes a connecting seat, a limiting ring, a first sealing layer, a movable rod, a second sealing layer, a limiting pull rod and an external connecting rod. The top of the outer frame is fixedly connected with a circle of the second sealing layer, the bottom of the movable cover is fixedly connected with a circle of the first sealing layer, the first sealing layer and the second sealing layer are fitted and connected, two groups of connecting seats are fixedly connected at both sides of the top of the outer frame, a movable rod is movably connected between the connecting seats, the outside of the movable rod is fixedly connected with a limiting pull rod, the two sides of the bottom of the movable cover are fixedly connected with the external connecting rod, and the limiting pull rod is sleeved on the outside of the external connecting rod;

[0008] Preferably, the outer side of the external connecting rod is plug-connected with a limiting collar, the side wall of the limiting collar is fitted and connected with the outer side of the limiting pull rod, and the external connecting rod is symmetrically distributed about the vertical center line of the outer frame.

[0009] Preferably, a connection groove is provided on the surface of the outer frame, and the bottom of the base is plugged and connected inside the connection groove.

[0010] Preferably, two groups of support frames are fixedly connected to the bottom end inside the outer frame, and the support frames are respectively located on both sides of the inner seat. Both sides of the base are fixedly connected to cross plates, and the inner walls of the cross plates are provided with installation grooves.

[0011] Preferably, the top of the support frame passes through the interior of the cross plate and is fixed in the interior of the mounting groove, the top of the support frame is fitted with a baffle, a fixing bolt is provided passing through the interior of the baffle, a knob is fixedly connected to the top of the fixing bolt, and the bottom of the fixing bolt passes through the interior of the support frame.

[0012] Preferably, a built-in groove is provided at the rear end inside the outer frame, two groups of insulating pressing sheets are arranged inside the built-in groove, and multiple groups of protective sleeves are penetrated through the front and rear ends of the outer frame.

[0013] Preferably, a plurality of sockets are fixedly connected to the top of the base, a notch is provided on the top of the socket, a first limit seat is provided on one side inside the socket, and a second limit seat is provided on the other side inside the socket.

[0014] Preferably, two groups of return springs are fixedly connected to the outer sides of the first limit seat and the second limit seat and the inner wall of the socket, and the first limit seat and the second limit seat are in an arc shape.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the dry-type transformer high-voltage coil tapping lead terminal with improved structure not only realizes the flexible opening and closing function, realizes the stable supporting function, but also realizes the limiting and fixing function;

[0016] (1) The movable cover is placed on the top of the outer frame, and the first sealing layer fits the second sealing layer, which plays a role of rapid positioning and effectively prevents the formation of a gap between the movable cover and the outer frame. The limit rod is flexibly rotated between the connecting seats through the movable rod, and is sleeved and installed on the outside of the outer rod. The limit ring is inserted and fixed to the outside of the outer rod, and the limit rod is fixed to prevent the limit rod from falling off, thereby enhancing the firmness between the movable cover and the outer frame, optimizing the flexibility between the structures, and facilitating the subsequent rapid disassembly of the structure for inspection and maintenance;

[0017] (2) The support frame, the base, the horizontal plate, the baffle, the fixing bolts and the knob are provided. The base is sleeved on the outside of the support frame by the horizontal plates fixed on both sides, ensuring that the horizontal plates are fixed inside the mounting grooves, strengthening the connection force between the horizontal plates and the support frame, and fixing the base in all directions. The baffle is placed on the top of the support frame, and the fixing bolts are passed through the inside of the baffle and the support frame in sequence, thereby improving the stability of the overall structure and preventing the base from being dislocated during use;

[0018] (3) By providing a protective cover, a socket, a first limit seat, a second limit seat and a reset spring, the first limit seat and the second limit seat cooperate with each other to provide strong support force to the outside of the terminal block, effectively prevent poor contact and breakage, enhance connection stability and reliability, and ensure normal operation. The reset spring can be used to support and protect the outside of the first limit seat and the second limit seat, and the limit can be fixed and quickly restored to the original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the movable cover plate of the utility model from top view;

[0021] Figure 3 This is a schematic diagram of the top view of the base structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the front view structure of the socket of the present utility model.

[0023] In the figure: 1. outer frame; 2. connecting seat; 3. limiting ring; 4. movable cover; 5. built-in groove; 6. insulating pressing piece; 7. first sealing layer; 8. movable rod; 9. second sealing layer; 10. support frame; 11. base; 12. socket; 13. fixing bolt; 14. internal seat; 15. limiting pull rod; 16. protective cover; 17. external rod; 18. connecting groove; 19. knob; 20. baffle; 21. horizontal plate; 22. installation groove; 23. first limiting seat; 24. second limiting seat; 25. reset spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4, a dry-type high-voltage coil tapping lead terminal with an improved structure, comprising an outer frame 1, a movable cover plate 4 is arranged on the top of the outer frame 1, an inner connection seat 14 is fixedly connected to the bottom end of the inner part of the outer frame 1, a base 11 is arranged above the inner connection seat 14, and a fixing component for facilitating assembly is arranged between the outer frame 1 and the movable cover plate 4;

[0026] The fixing assembly includes a connecting seat 2, a limiting collar 3, a first sealing layer 7, a movable rod 8, a second sealing layer 9, a limiting pull rod 15 and an external connecting rod 17. The top of the outer frame 1 is fixedly connected with a circle of the second sealing layer 9, the bottom of the movable cover plate 4 is fixedly connected with a circle of the first sealing layer 7, the first sealing layer 7 and the second sealing layer 9 are fitted and connected, two groups of connecting seats 2 are fixedly connected to both sides of the top of the outer frame 1, the connecting seats 2 are movably connected with the movable rods 8, the outside of the movable rod 8 is fixedly connected with the limiting pull rod 15, the two sides of the bottom of the movable cover plate 4 are fixedly connected with the external connecting rod 17, and the limiting pull rod 15 is sleeved on the outside of the external connecting rod 17;

[0027] The outer side of the external connecting rod 17 is plugged and connected with the limiting collar 3, and the side wall of the limiting collar 3 is fitted and connected with the outer side of the limiting pull rod 15. The external connecting rod 17 is symmetrically distributed about the vertical center line of the outer frame 1;

[0028] Specifically, Figure 1 and Figure 2 As shown, when in use, the movable cover plate 4 is placed on the top of the outer frame 1, the first sealing layer 7 and the second sealing layer 9 are fitted together, the limiting rod 15 is flipped upward until the limiting rod 15 is sleeved and installed on the outside of the external connecting rod 17, and the limiting ring 3 is inserted and fixed on the outside of the outer side of the external connecting rod 17 to provide a fixing force on the outer side of the limiting rod 15.

[0029] Embodiment 2: A connection groove 18 is provided on the surface of the outer frame 1, and the bottom of the base 11 is plugged and connected inside the connection groove 18;

[0030] Two sets of support frames 10 are fixedly connected to the bottom end of the outer frame 1. The support frames 10 are respectively located on both sides of the inner seat 14. The two sides of the base 11 are fixedly connected to the horizontal plate 21. The inner wall of the horizontal plate 21 is provided with a mounting groove 22.

[0031] The top of the support frame 10 passes through the interior of the horizontal plate 21 and is fixed in the interior of the mounting groove 22. The top of the support frame 10 is fitted with a baffle 20. The interior of the baffle 20 is penetrated by a fixing bolt 13. The top of the fixing bolt 13 is fixedly connected with a knob 19. The bottom of the fixing bolt 13 passes through the interior of the support frame 10.

[0032] Specifically, Figure 1 and Figure 3As shown, when in use, the base 11 is inserted into the internal seat 14 until the base 11 is snap-fitted and fixed inside the connecting groove 18. At the same time, the cross plate 21 is sleeved and installed on the outside of the support frame 10 and fixed in the mounting groove 22. The baffle 20 is placed against the top of the support frame 10. After turning the knob 19 in turn, the fixing bolts 13 are driven to pass through the inside of the baffle 20 and the support frame 10 in turn, thereby fixing the base 11 in all directions.

[0033] Embodiment 3: A built-in groove 5 is provided at the rear end of the outer frame 1, two sets of insulating pressing sheets 6 are provided inside the built-in groove 5, and multiple sets of protective sleeves 16 are provided through the front and rear ends of the outer frame 1;

[0034] A plurality of sockets 12 are fixedly connected to the top of the base 11. A notch is provided on the top of the socket 12. A first limit seat 23 is provided on one side of the socket 12, and a second limit seat 24 is provided on the other side of the socket 12.

[0035] Two sets of return springs 25 are fixedly connected to the outer sides of the first limit seat 23 and the second limit seat 24 and the inner wall of the socket 12. The first limit seat 23 and the second limit seat 24 are in an arc shape.

[0036] Specifically, Figure 1 and Figure 4 As shown, when in use, the first limit seat 23 and the second limit seat 24 cooperate with each other to provide strong supporting force for the outside of the terminal block, effectively prevent breakage due to poor contact, enhance connection stability and reliability, and ensure normal operation. The reset spring 25 can be used to support and protect the outer sides of the first limit seat 23 and the second limit seat 24, and they can quickly return to their original position while being limited and fixed.

[0037] Working principle: When the utility model is in use, the base 11 is inserted into the internal seat 14 until the base 11 is snap-fitted and fixed inside the connecting groove 18, and at the same time the cross plate 21 is sleeved and installed on the outside of the support frame 10 and fixed in the mounting groove 22, and the baffle 20 is placed on the top of the support frame 10, and the knob 19 is turned in sequence to drive the fixing bolts 13 to pass through the baffle 20 and the inside of the support frame 10 in sequence, and the base 11 is fixed in all directions, and the wiring terminals are inserted into the sockets 12 in order. The first limit seat 23 and the second limit seat 24 cooperate with each other to provide strong supporting force for the outside of the wiring terminals, and the movable cover plate 4 is placed on the top of the outer frame 1, and the first sealing layer 7 and the second sealing layer 9 are fitted together, and the limit pull rod 15 is flipped upward until the limit pull rod 15 is sleeved and installed on the outside of the external connecting rod 17, and the limit ring 3 is inserted and fixed on the outside of the outer side of the external connecting rod 17.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dry-type high-voltage coil tapping lead terminal with an improved structure, comprising an outer frame (1), characterized in that: A movable cover plate (4) is arranged on the top of the outer frame (1), an inner seat (14) is fixedly connected to the bottom end of the inner portion of the outer frame (1), a base (11) is arranged above the inner seat (14), and a fixing component is arranged between the outer frame (1) and the movable cover plate (4) for easy assembly; The fixing assembly comprises a connecting seat (2), a limiting ring (3), a first sealing layer (7), a movable rod (8), a second sealing layer (9), a limiting pull rod (15) and an external connecting rod (17); the top of the outer frame (1) is fixedly connected to a circle of the second sealing layer (9); the bottom of the movable cover plate (4) is fixedly connected to a circle of the first sealing layer (7); the first sealing layer (7) and the second sealing layer (9) are closely connected; two groups of connecting seats (2) are fixedly connected on both sides of the top of the outer frame (1); a movable rod (8) is movably connected between the connecting seats (2); the outside of the movable rod (8) is fixedly connected to the limiting pull rod (15); the two sides of the bottom of the movable cover plate (4) are fixedly connected to the external connecting rod (17); the limiting pull rod (15) is sleeved on the outside of the external connecting rod (17).

2. The dry-type high-voltage coil tapping lead terminal with an improved structure according to claim 1, characterized in that: The outer side of the external connecting rod (17) is plug-connected with the limiting ring (3), the side wall of the limiting ring (3) is fitted and connected with the outer side of the limiting pull rod (15), and the external connecting rod (17) is symmetrically distributed about the vertical center line of the outer frame (1).

3. The dry-type high-voltage coil tapping lead terminal with an improved structure according to claim 1, characterized in that: A connection groove (18) is provided on the surface of the outer frame (1), and the bottom of the base (11) is plugged and connected inside the connection groove (18).

4. The dry-type high-voltage coil tapping lead terminal with an improved structure according to claim 1, characterized in that: Two groups of support frames (10) are fixedly connected to the bottom end of the outer frame (1), and the support frames (10) are respectively located on both sides of the inner seat (14). The two sides of the base (11) are fixedly connected to the horizontal plate (21), and the inner wall of the horizontal plate (21) is provided with a mounting groove (22).

5. The dry-type transformer high voltage coil tapping lead terminal with improved structure according to claim 4, characterized in that: The top of the support frame (10) passes through the interior of the transverse plate (21) and is fixedly engaged in the interior of the mounting groove (22); the top of the support frame (10) is fittedly connected with a baffle (20); a fixing bolt (13) is provided through the interior of the baffle (20); a knob (19) is fixedly connected to the top of the fixing bolt (13); and the bottom of the fixing bolt (13) passes through the interior of the support frame (10).

6. The dry-type transformer high voltage coil tapping lead terminal with improved structure according to claim 1, characterized in that: A built-in groove (5) is provided at the rear end inside the outer frame (1), two groups of insulating pressing sheets (6) are arranged inside the built-in groove (5), and multiple groups of protective sleeves (16) are penetrated through the front and rear ends of the outer frame (1).

7. The dry-type high-voltage coil tapping lead terminal with an improved structure according to claim 1, characterized in that: A plurality of sockets (12) are fixedly connected to the top of the base (11), a notch is provided on the top of the socket (12), a first limit seat (23) is provided on one side inside the socket (12), and a second limit seat (24) is provided on the other side inside the socket (12).

8. The dry-type high-voltage coil tapping lead terminal with an improved structure according to claim 7, characterized in that: Two groups of return springs (25) are fixedly connected to the outer sides of the first limit seat (23) and the second limit seat (24) and the inner wall of the socket (12); the first limit seat (23) and the second limit seat (24) are in an arc shape.

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