Secondary wiring board of voltage transformer

Abstract

The utility model discloses a voltage transformer secondary wiring board, and belongs to the field of wiring boards, the voltage transformer secondary wiring board comprises a wiring board body, the top of the wiring board body is fixedly provided with an installation disc, the top of the installation disc is fixedly provided with a binding post, the outer edge of the binding post is sleeved with a first insulation pad and a second insulation pad, and the first insulation pad and the second insulation pad are fixedly arranged on the wiring board body. The outer edge of the binding post is sleeved with a connecting disc, a wire is fixedly assembled on the outer edge of the connecting disc, and the outer edge of the binding post is in threaded connection with a nut. The wire is placed on the inner wall of the arc-shaped groove in the top of the supporting strip, then the covering strip is rotated until the magnet at the bottom of the covering strip is inserted into the inner wall of the mounting groove, and the supporting strip and the covering strip are fixed by utilizing a magnetic attraction principle, so that the wire is positioned and is prevented from being separated from the position; therefore, problems of easy damage, easy open circuit and insufficient safety caused by easy mutual contact and mutual friction after connection of a plurality of leads and binding posts in the prior art are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of wiring boards, and in particular to a secondary wiring board for a voltage transformer. Background Art

[0002] The capacitive voltage transformer consists of a capacitive voltage divider and an electromagnetic unit. The electromagnetic unit is mainly composed of an iron core, a primary coil and a secondary coil. The secondary coil wire is generally led out of the product through a terminal block made of epoxy casting material. Terminals are cast on the secondary terminal board. The terminals on the inner side are connected to the secondary coil wire, and the terminals on the outer side are connected to the instruments outside the product.

[0003] In the patent with the published authorization announcement number CN210956402U, the spliced ​​voltage transformer secondary terminal board aims to solve the problem of the distance between the terminals on the adjustable terminal board, including a terminal board body, the terminal board body is composed of a first connecting plate, a second connecting plate and a third connecting plate, a first protrusion is provided on one side of the first connecting plate, a first slide is provided on one side of the second connecting plate, a second protrusion is provided on one side of the second connecting plate, a second slide is provided on one side of the third connecting plate, a plurality of second connecting plates are provided between the first connecting plate and the third connecting plate, a plurality of first terminals are provided on the first connecting plate, a plurality of second terminals are provided on the second connecting plate, a plurality of third terminals are provided on the third connecting plate, an N-pole terminal, an E-pole terminal and a grounding terminal are provided on the first connecting plate or the second connecting plate or the third connecting plate in sequence, and an adjustment component is provided on one side of the terminal board body. The utility model has the effect of adjusting the distance between the terminals on the terminal board.

[0004] When the above device is implemented, it is impossible to limit the positioning of the wires connected to the terminal posts, so that multiple wires are prone to contact and rub against each other after being connected to the terminal posts, which makes them easy to be damaged and prone to short circuit, and the safety is insufficient. For this reason, the present application proposes a voltage transformer secondary terminal board to solve the above problem. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a voltage transformer secondary wiring board, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a secondary terminal board of a voltage transformer, comprising a terminal board body, a mounting plate fixedly assembled on the top of the terminal board body, a terminal post fixedly assembled on the top of the mounting plate, an insulating pad 1 and an insulating pad 2 respectively sleeved on the outer edges of the terminal post, a connecting plate sleeved on the outer edges of the connecting plate, a wire fixedly assembled on the outer edges of the connecting plate, a nut threadedly connected to the outer edges of the terminal post, a support bar fixedly assembled on the top of the terminal board body, an arc groove formed on the top of the support bar, a covering strip rotatably connected to the top of the support bar, a magnet fixedly assembled on the bottom of the covering strip, and a mounting groove formed on the top of the support bar.

[0007] As a preferred embodiment, the connecting plate is arranged in the middle position between the insulating pad 1 and the insulating pad 2, the nut is arranged above the insulating pad 2, and the outer edge of the nut is symmetrically fixed with two rotating ears.

[0008] By adopting the above technical solution, the connection plate can be protected to ensure that it will not be broken at will. The nut can be used to position the insulating pad 1, the insulating pad 2 and the connection plate to ensure that they can be stably positioned at the outer edge of the terminal.

[0009] As a preferred embodiment, the bottom of the cover strip is also provided with an arc groove, the arc groove at the top of the support strip corresponds to the arc groove at the bottom of the cover strip, and the conductor is arranged on the inner wall of the two arc grooves.

[0010] By adopting the above technical solution, it is possible to play a role in positioning and protecting the wires, ensuring that the wires will not be arbitrarily shifted and that multiple wires will not be damaged by contact and friction with each other, thereby increasing the service life of the wires.

[0011] As a preferred implementation, the magnet is arranged on the inner wall of the mounting groove, the shape of the magnet is matched with the shape of the inner wall of the mounting groove, and the support bar is made of magnetic material.

[0012] By adopting the above technical solution, when the magnet is installed to the inner wall position of the installation groove, the support bar and the covering bar can be firmly connected, thereby positioning the wire to ensure that it will not be out of position at will.

[0013] As a preferred implementation, the terminal block body is an integrated structure and is cast by epoxy resin.

[0014] By adopting the above technical solution, the terminal block body can have high dielectric properties and excellent insulation capacity, thereby ensuring the safety of operators at work.

[0015] As a preferred implementation, a lightning arrester is fixedly mounted on the outer side of the wiring board body, and a voltage transformer body and a damper are respectively fixedly mounted on the bottom of the wiring board body.

[0016] By adopting the above technical solution, the lightning arrester can be used to protect the voltage transformer body from the hazards of high transient overvoltage during lightning strikes, and limit the follow-up time to enable the voltage transformer body to work normally. The damper is connected to the crown spring terminal on the inner side of the terminal block body through a wire, and the operator can connect it to the thread hole terminal on the outer side of the terminal block body through an external plug-in device, so that the operator can measure the DC resistance and excitation characteristics of the damper from the outside, further improving the work efficiency of the staff.

[0017] Beneficial effects of this application:

[0018] 1. A voltage transformer secondary terminal board, by placing the wire on the inner wall position of the arc groove at the top of the support bar, and then rotating the cover bar until the magnet at the bottom of the cover bar is inserted into the inner wall position of the installation groove, the support bar and the cover bar are fixed by the magnetic attraction principle, so as to position the wire and ensure that it will not be out of position, thereby avoiding the problem of multiple wires in the existing device being easily contacted and rubbed with each other after being connected to the terminal, which leads to the problem of being easily damaged and prone to circuit breaking, and insufficient safety.

[0019] 2. This voltage transformer secondary terminal board can be used to protect the voltage transformer body from high transient overvoltage hazards during lightning strikes through a lightning arrester, and limit the follow-up time to enable the voltage transformer body to work normally. The insulating pads one and two can play a good positioning role for the connecting disk, thereby ensuring the insulation effect after the connecting disk is connected, and further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0021] Figure 2 This is a schematic diagram of the top view of the structure of this application;

[0022] Figure 3 It is a schematic diagram of the local structure of this application;

[0023] Figure 4 This is a schematic diagram of the expanded structure of this application.

[0024] Numbers in the figure: 1. Terminal block body; 2. Lightning arrester; 3. Voltage transformer body; 4. Damper; 5. Mounting plate; 6. Terminal post; 7. Insulating pad 1; 8. Insulating pad 2; 9. Nut; 10. Rotating ear; 11. Connecting plate; 12. Wire; 13. Support bar; 14. Covering bar; 15. Magnet; 16. Mounting groove; 17. Arc groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0026] Reference Figure 1-4 A voltage transformer secondary terminal block comprises a terminal block body 1, a mounting plate 5 is fixedly mounted on the top of the terminal block body 1, a terminal post 6 is fixedly mounted on the top of the mounting plate 5, an insulating pad 1 7 and an insulating pad 2 8 are respectively sleeved on the outer edges of the terminal post 6, a connecting plate 11 is sleeved on the outer edges of the terminal post 6, a wire 12 is fixedly mounted on the outer edges of the connecting plate 11, a nut 9 is threadedly connected to the outer edges of the terminal post 6, a supporting bar 13 is fixedly mounted on the top of the terminal block body 1, an arc groove 17 is provided on the top of the supporting bar 13, a covering bar 14 is rotatably connected to the top of the supporting bar 13, a magnet 15 is fixedly mounted on the bottom of the covering bar 14, and a mounting groove 16 is provided on the top of the supporting bar 13.

[0027] See also Figure 4 The connecting plate 11 is arranged in the middle position between the insulating pad 1 7 and the insulating pad 2 8, and the nut 9 is arranged above the insulating pad 2 8. The outer edge of the nut 9 is symmetrically fixed with two rotating ears 10, so that the connecting plate 11 can be protected to ensure that it will not be disconnected at will. The nut 9 can position the insulating pad 1 7, the insulating pad 2 8 and the connecting plate 11 to ensure that they can be stably positioned at the outer edge of the terminal 6.

[0028] See also Figure 4 An arc groove 17 is also provided at the bottom of the covering strip 14. The arc groove 17 at the top of the supporting strip 13 corresponds to the arc groove 17 at the bottom of the covering strip 14. The conductor 12 is arranged on the inner wall of the two arc grooves 17, so that the conductor 12 can be positioned and protected, ensuring that the conductor 12 will not be arbitrarily displaced and that multiple conductors 12 will not contact and rub against each other to cause damage, thereby increasing the service life of the conductor 12.

[0029] See also Figure 4 The magnet 15 is arranged on the inner wall of the mounting groove 16. The shape of the magnet 15 matches the shape of the inner wall of the mounting groove 16. The support bar 13 is made of magnetic material, so that when the magnet 15 is installed on the inner wall of the mounting groove 16, the support bar 13 and the covering bar 14 can be firmly connected, thereby positioning the wire 12 to ensure that it will not be out of position at will.

[0030] See also Figure 1 and Figure 2The terminal block body 1 is an integrated structure and is cast by epoxy resin, so that the terminal block body 1 has high dielectric properties and excellent insulation ability, ensuring the safety of operators at work.

[0031] See also Figure 1 and Figure 2 A lightning arrester 2 is fixedly mounted on the outer side of the terminal block body 1, and a voltage transformer body 3 and a damper 4 are fixedly mounted on the bottom of the terminal block body 1, so that the lightning arrester 2 can be used to protect the voltage transformer body 3 from high transient overvoltage hazards during lightning strikes, and limit the follow-up time to enable the voltage transformer body 3 to work normally. The damper 4 is connected to the crown spring terminal 6 on the inner side of the terminal block body 1 through a wire 12, and the operator can connect to the wire hole terminal 6 on the outer side of the terminal block body 1 through an external plug-in device, so that the operator can measure the DC resistance and excitation characteristics of the damper 4 from the outside, further improving the work efficiency of the staff.

[0032] Working principle: When using the device, first, the insulating pad 1 7 can be sleeved to the outer edge of the terminal 6 until it fits with the top of the mounting plate 5, and then the connecting plate 11 can be sleeved to the outer edge of the terminal 6, and then the insulating pad 2 8 can be sleeved to the outer edge of the terminal 6, so that the nut 9 can be threadedly connected to the outer edge of the terminal 6, and the insulating pad 1 7, the insulating pad 2 8 and the connecting plate 11 can be stably positioned at the outer edge of the terminal 6, and then the wire 12 can be placed on the inner wall of the arc groove 17 at the top of the support bar 13, and then the covering bar 14 can be rotated until the magnet 15 at the bottom of the covering bar 14 is plugged into the inner wall of the mounting groove 16 The support strip 13 and the cover strip 14 are fixed in position by the magnetic attraction principle, so as to position the wire 12 and ensure that it will not be out of position. The lightning arrester 2 can be used to protect the voltage transformer body 3 from the high transient overvoltage hazard during lightning strike and limit the follow-up time to make the voltage transformer body 3 work normally. The damper 4 is connected to the crown spring terminal 6 on the inner side of the terminal block body 1 through the wire 12. The operator can connect to the wire hole terminal 6 on the outer side of the terminal block body 1 through an external plug-in device, so that the operator can measure the DC resistance and excitation characteristics of the damper 4 from the outside, which further improves the work efficiency of the staff.

[0033] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A voltage transformer secondary terminal block, comprising a terminal block body (1), characterized in that: The top of the terminal block body (1) is fixedly equipped with a mounting plate (5), the top of the mounting plate (5) is fixedly equipped with a terminal post (6), the outer edges of the terminal post (6) are respectively sleeved with an insulating pad 1 (7) and an insulating pad 2 (8), the outer edges of the terminal post (6) are sleeved with a connecting plate (11), the outer edges of the connecting plate (11) are fixedly equipped with a wire (12), the outer edges of the terminal post (6) are threadedly connected with a nut (9), the top of the terminal block body (1) is fixedly equipped with a support bar (13), the top of the support bar (13) is provided with an arc groove (17), the top of the support bar (13) is rotatably connected with a covering bar (14), the bottom of the covering bar (14) is fixedly equipped with a magnet (15), and the top of the support bar (13) is provided with a mounting groove (16).

2. A voltage transformer secondary terminal board according to claim 1, characterized in that: The connecting plate (11) is arranged in the middle of the insulating pad 1 (7) and the insulating pad 2 (8), the nut (9) is arranged above the insulating pad 2 (8), and the outer edge of the nut (9) is symmetrically fixedly equipped with two rotating ears (10).

3. A voltage transformer secondary terminal board according to claim 1, characterized in that: The bottom of the covering strip (14) is also provided with an arc-shaped groove (17), the arc-shaped groove (17) at the top of the supporting strip (13) corresponds to the arc-shaped groove (17) at the bottom of the covering strip (14), and the conducting wire (12) is arranged at the inner wall position of the two arc-shaped grooves (17).

4. A voltage transformer secondary terminal board according to claim 1, characterized in that: The magnet (15) is arranged on the inner wall of the installation groove (16); the shape of the magnet (15) matches the shape of the inner wall of the installation groove (16); and the support bar (13) is made of magnetic material.

5. A voltage transformer secondary terminal board according to claim 1, characterized in that: The wiring board body (1) is an integrated structure and is cast by epoxy resin.

6. A voltage transformer secondary terminal board according to claim 1, characterized in that: A lightning arrester (2) is fixedly mounted on the outer side of the wiring board body (1), and a voltage transformer body (3) and a damper (4) are respectively fixedly mounted on the bottom of the wiring board body (1).

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