CN214753242U

CN214753242U - Transformer shell with detachable high-voltage sleeve

Info

Publication number: CN214753242U
Application number: CN202121329764.7U
Authority: CN
Inventors: 袁妙增
Original assignee: Taizhou Bairui Electronic Technology Co ltd
Current assignee: Taizhou Bairui Electronic Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-11-16
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a transformer housing with dismantled and assembled high-tension bushing belongs to transformer equipment technical field. It has solved the problem of the inconvenient dismouting of current high-voltage bushing and pin connection. This transformer shell with dismantled and assembled high-voltage bushing, including transformer box and a plurality of connection sleeve pipe of connecting on transformer box, every connection sleeve pipe includes sleeve pipe body and binding post, this internal inner chamber that runs through the sleeve pipe body from top to bottom that is equipped with of sleeve pipe, the lower extreme of sleeve pipe body links firmly on last transformer box, set up in the upper end of sleeve pipe body on the binding post, and binding post's upper end is connected with the sleeve pipe body, binding post's lower extreme penetrates to the inner chamber in, binding post's lower extreme is equipped with the locking piece that is used for binding post and transformer lead wire to be connected. The utility model has the advantages of disassembly and assembly.

Description

Transformer shell with detachable high-voltage sleeve

Technical Field

The utility model belongs to the technical field of transformer equipment, a transformer housing with dismantled and assembled high-tension bushing is related to.

Background

In electrical equipment and wireless circuits, transformers are often used for voltage step-up and step-down, impedance matching, safety isolation, etc., in generators where an electric potential is induced in a coil, whether the coil is moved through a magnetic field or a magnetic field through a stationary coil, in both cases the value of the magnetic flux is constant, but the amount of the magnetic flux that is interlinked with the coil varies, which is the principle of mutual induction, i.e. a transformer that uses electromagnetic mutual induction to transform voltage, current and impedance, the most basic form of a transformer comprises two sets of coils wound with wires and inductively coupled to each other, when an alternating current (having a certain known frequency) flows in one of the sets of coils, an alternating voltage having the same frequency is induced in the other set of coils, and the magnitude of the induced voltage depends on the degree of interlinking between the two coils and the magnetic interlinkage.

When the lead of the existing dry-type transformer is fixed, the lead is usually directly welded with the core of the wiring sleeve, and the main defects exist: the lead wires are inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a transformer housing with dismantled and assembled high-tension bushing.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a transformer shell with dismantled and assembled high-voltage bushing, includes transformer box and a plurality of connection sleeve pipe of connecting on transformer box, its characterized in that, every connection sleeve pipe include sleeve pipe body and binding post, this internal inner chamber that runs through the sleeve pipe body from top to bottom that is equipped with of sleeve pipe, the lower extreme of sleeve pipe body links firmly on last transformer box, binding post on set up in the upper end of sleeve pipe body, and binding post's upper end is connected with the sleeve pipe body, binding post's lower extreme penetrates to the inner chamber in, binding post's lower extreme is equipped with the locking piece that is used for binding post and transformer lead wire to be connected.

In the transformer shell with the detachable high-voltage bushing, a plurality of the wiring bushings are uniformly distributed on the transformer box body at intervals.

In the transformer shell with the detachable high-voltage bushing, the lower end of the wiring bushing is provided with a thread section for connecting the wiring bushing with a transformer box body, and a radially protruding limiting circular truncated cone is arranged between the thread section and the wiring bushing.

In the transformer housing with the detachable high-voltage bushing, the wiring bushing is made of a ceramic material, a plurality of radially protruding bushing ring pieces are arranged on the outer surface of the wiring bushing, and the plurality of bushing ring pieces are uniformly arranged along the length direction of the wiring bushing.

In the transformer casing with the detachable high-voltage bushing, the connecting terminal comprises a wiring body, an upper connecting part and a lower connecting part, the upper connecting part and the lower connecting part are arranged on the wiring body, the upper connecting part is connected to the wiring bushing, a spacer ring is arranged between the lower connecting part and the wiring body, a lead channel for a transformer lead to penetrate is formed in the lower connecting part, and the locking piece and the lower connecting part are matched and pressed on the transformer lead penetrating from the lead channel.

In the transformer casing with the detachable high-voltage bushing, the lead channel includes a straight approach extending from the bottom end of the connecting portion toward one side of the spacer ring and an inclined approach arranged at the tail end of the straight approach, and an opening at one end of the inclined approach, which is far away from the straight approach, is located at the position of the spacer ring.

In the transformer casing with the detachable high-voltage bushing, the locking piece comprises a locking body which can be sleeved and fixed on the lower connecting part, a pressing ring matched with the spacing ring is arranged at the upper end of the locking body, and a guide part for supporting and positioning the lead of the transformer is arranged at the lower end of the locking piece.

In the transformer casing with the detachable high-voltage bushing, the guide part comprises a guide frame connected to the locking body, a guide plate is arranged at the bottom end of the guide frame, and a guide hole for a transformer lead to pass through is formed in the center of the guide plate.

In the transformer casing with the detachable high-voltage bushing, the diameter of the upper connecting part is larger than that of the spacer ring, and the diameter of the spacer ring is larger than that of the compression ring.

In the transformer housing with the detachable high-voltage bushing, the upper connecting portion is fixedly connected with the wiring bushing through threads, the upper connecting portion is further provided with a sealing coil, and the lower end of the sealing coil abuts against the top end face of the wiring bushing and covers the connecting position of the upper connecting portion and the wiring bushing.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses binding post's upper end is connected with the sleeve pipe body, and binding post's lower extreme penetrates to the inner chamber in, and binding post's lower extreme is equipped with the locking piece that is used for binding post and transformer lead wire to be connected, realizes binding post and transformer lead wire's detachable connections through the locking piece, and keeps the stability of connecting.

2. The utility model discloses a lower extreme butt of sealed helicoidal covers in last connecting portion and the junction of wiring sleeve pipe on the top face of wiring sleeve pipe, promotes sealing performance.

3. The utility model discloses a lower extreme of locking piece is equipped with the guide part that is used for the transformer lead wire to support the location, prevents the contact of transformer lead wire and wiring sleeve lateral wall.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is an overall distribution diagram of the middle junction casing of the present invention.

Fig. 2 is a schematic structural diagram of the middle junction casing of the present invention.

Fig. 3 is an assembly connection diagram of the locking member of the present invention.

In the figure, 1, a transformer box body; 2. a wiring sleeve; 3. a sleeve body; 4. a wiring terminal; 5. an inner cavity; 6. a locking member; 7. a threaded segment; 8. a limiting round table; 9. a sleeve ring sheet; 10. a wiring body; 11. an upper connecting portion; 12. a lower connecting portion; 13. a spacer ring; 14. a wire passage; 15. a straight approach; 16. obliquely guiding; 17. a lock body; 18. pressing a ring; 19. a guide portion; 20. a guide frame; 21. a guide plate; 22. a guide hole; 23. and sealing the spiral ring.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 3, a transformer housing with dismantled and assembled high-voltage bushing, including transformer box 1 and a plurality of connection sleeve 2 of connecting on transformer box 1, every connection sleeve 2 includes sleeve pipe body 3 and binding post 4, the inner chamber 5 that runs through sleeve pipe body 3 from top to bottom is equipped with in the sleeve pipe body 3, the lower extreme of sleeve pipe body 3 links firmly on last transformer box 1, set up in the upper end of sleeve pipe body 3 on binding post 4, and binding post 4's upper end is connected with sleeve pipe body 3, binding post 4's lower extreme penetrates to in the inner chamber 5, binding post 4's lower extreme is equipped with the locking piece 6 that is used for binding post 4 and transformer lead wire to be connected.

In this embodiment, the lower extreme of connection sleeve 2 is connected on transformer box 1, and binding post 4 is connected in the upper end of sleeve pipe body 3 and links firmly mutually with sleeve pipe body 3, and the transformer lead wire penetrates sleeve pipe body 3 inside back, connects in binding post 4's lower extreme to realize binding post 4 and transformer lead wire's detachable connections through locking piece 6, and keep the stability of connecting.

In the present embodiment, a plurality of wiring sleeves 2 are uniformly distributed on the transformer tank 1 at intervals for fixing a plurality of transformer leads.

In this embodiment, the lower end of the connection sleeve 2 is provided with a threaded section 7 for connecting the connection sleeve 2 with the transformer tank 1, and preferably, a radially protruding limiting circular truncated cone 8 is arranged between the threaded section 7 and the connection sleeve 2. In order to facilitate the disassembly and assembly combination, the lower end of the wiring sleeve 2 is fixedly connected with the transformer box body 1 through threads, when the wiring sleeve 2 is rotatably connected, the limiting round table 8 abuts against the transformer box body 1 to finish the fixed connection, and at the moment, the limiting round table 8 abuts against the transformer box body 1 to play a role in sealing.

In the embodiment, the wire connecting sleeve 2 is made of a ceramic material, a plurality of radially protruding sleeve ring pieces 9 are arranged on the outer surface of the wire connecting sleeve 2, and the plurality of sleeve ring pieces 9 are uniformly arranged along the length direction of the wire connecting sleeve 2.

In this embodiment, specifically, the connection terminal 4 includes a connection body 10, and an upper connection portion 11 and a lower connection portion 12 disposed on the connection body 10, the upper connection portion 11 is connected to the connection sleeve 2, a spacer ring 13 is disposed between the lower connection portion 12 and the connection body 10, a lead channel 14 for a transformer lead to penetrate is disposed in the lower connection portion 12, and the locking member 6 is matched with the lower connection portion 12 and pressed on the transformer lead penetrating from the lead channel 14.

In the present embodiment, the wire guiding channel 14 includes a straight guiding channel 15 extending from the bottom end of the connecting portion toward one side of the spacer 13, and an inclined guiding channel 16 disposed at the tail end of the straight guiding channel 15, and an opening of one end of the inclined guiding channel 16 far from the straight guiding channel 15 is located at the position of the spacer 13. The transformer lead is inserted into the lower connecting part 12 through the straight guide way 15 and then penetrates out of the lower connecting part 12 through the inclined guide way 16, the penetrating end part of the transformer lead is arranged at the position of the spacing ring 13, the locking piece 6 is matched with the lower connecting part 12, and the transformer lead is pressed on the spacing ring 13.

In this embodiment, the locking member 6 includes a locking body 17 that can be sleeved and fixed on the lower connecting portion 12, the locking body 17 is screwed with the lower connecting portion 12, a pressing ring 18 that is matched with the spacer ring 13 is provided at the upper end of the locking body 17, and is used for pressing the transformer lead on the spacer ring 13, a guiding portion 19 for supporting and positioning the transformer lead is provided at the lower end of the locking member 6, specifically, the guiding portion 19 includes a guiding frame 20 connected to the locking body 17, a guiding plate 21 is provided at the bottom end of the guiding frame 20, a guiding hole 22 for the transformer lead to pass through is provided at the center of the guiding plate 21, and the transformer lead is prevented from contacting the side wall of the connection sleeve 2.

In this embodiment, the diameter of the upper connecting portion 11 is larger than the diameter of the spacer ring 13, and the diameter of the spacer ring 13 is larger than the diameter of the pressing ring 18. The connection sleeve 2 can be integrally installed in a plug-in manner from top to bottom.

In this embodiment, the upper connection portion 11 is fixedly connected to the wire barrel 2 through a thread, a sealing coil 23 is further disposed on the upper connection portion 11, and a lower end of the sealing coil 23 abuts against a top end surface of the wire barrel 2 and covers a connection portion of the upper connection portion 11 and the wire barrel 2.

The lower end of the sealing coil 23 abuts against the top end face of the wiring sleeve 2 and covers the joint of the upper connecting part 11 and the wiring sleeve 2, and sealing performance is improved. The sealing coil 23 may be a nut and seal assembly, as is known in the art.

The utility model discloses a theory of operation does: the lower extreme of connection sleeve 2 is connected on transformer box 1, and binding post 4 is connected in the upper end of sleeve pipe body 3 and links firmly mutually with sleeve pipe body 3, and the transformer lead wire penetrates the inside back of sleeve pipe body 3, connects in binding post 4's lower extreme to realize binding post 4 and transformer lead wire's detachable connections through locking piece 6, and keep the stability of connecting.

Specifically, locking piece 6 is including can overlapping the locking body 17 of establishing on being fixed in lower connecting portion 12, the spiro union between locking body 17 and the lower connecting portion 12, the upper end of locking body 17 is equipped with the clamping ring 18 with spacer ring 13 matched with, be used for locating the transformer lead wire pressure on spacer ring 13, the lower extreme of locking piece 6 is equipped with the guide part 19 that is used for the transformer lead wire to support the location, guide part 19 is including connecting in leading truck 20 on locking body 17, the bottom of leading truck 20 is provided with deflector 21, the guiding hole 22 that supplies the transformer lead wire to pass is seted up to the center department of deflector 21, prevent the contact of transformer lead wire and connection sleeve 2 lateral walls.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the transformer tank 1, the connection bushing 2, the bushing body 3, the connection terminal 4, the inner cavity 5, the locking piece 6, the threaded section 7, the limiting truncated cone 8, the bushing ring piece 9, the connection body 10, the upper connection part 11, the lower connection part 12, the spacer ring 13, the lead channel 14, the straight lead channel 15, the inclined lead channel 16, the locking body 17, the press ring 18, the guide part 19, the guide frame 20, the guide plate 21, the guide hole 22, the sealing coil 23, and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. A transformer shell with a detachable high-voltage bushing comprises a transformer box body (1) and a plurality of wiring bushings (2) connected to the transformer box body (1), it is characterized in that each wiring sleeve (2) comprises a sleeve body (3) and a wiring terminal (4), an inner cavity (5) which vertically penetrates through the sleeve body (3) is arranged in the sleeve body (3), the lower end of the sleeve body (3) is fixedly connected to the upper transformer tank body (1), the wiring terminal (4) is arranged at the upper end of the sleeve body (3), the upper end of the wiring terminal (4) is connected with the sleeve body (3), the lower end of the wiring terminal (4) penetrates into the inner cavity (5), the lower end of the wiring terminal (4) is provided with a locking piece (6) used for connecting the wiring terminal (4) and the transformer lead.

2. The transformer housing with removable high voltage bushings as claimed in claim 1, characterized in that a number of said connection bushings (2) are evenly distributed at intervals on the transformer tank (1).

3. The transformer housing with the removable high-voltage bushing according to claim 1, wherein the lower end of the connection bushing (2) is provided with a threaded section (7) for connecting the connection bushing (2) with the transformer tank (1), and a radially protruding limiting truncated cone (8) is arranged between the threaded section (7) and the connection bushing (2).

4. The transformer housing with a removable high voltage bushing according to claim 1, wherein the connection bushing (2) is made of a ceramic material, and a plurality of radially protruding bushing rings (9) are provided on the outer surface of the connection bushing (2), and a plurality of the bushing rings (9) are uniformly arranged along the length direction of the connection bushing (2).

5. The transformer casing with the detachable high-voltage bushing according to claim 1, wherein the connection terminal (4) comprises a connection body (10), and an upper connection portion (11) and a lower connection portion (12) disposed on the connection body (10), the upper connection portion (11) is connected to the connection bushing (2), a spacer ring (13) is disposed between the lower connection portion (12) and the connection body (10), a lead channel (14) for a transformer lead to penetrate is formed in the lower connection portion (12), and the locking member (6) and the lower connection portion (12) are matched and pressed on the transformer lead penetrating from the lead channel (14).

6. The transformer housing with the removable high voltage bushing according to claim 5, wherein the lead channel (14) comprises a straight guide (15) extending from the bottom end of the connecting portion toward one side of the spacer ring (13), and an inclined guide (16) disposed at the tail end of the straight guide (15), and an opening of the inclined guide (16) away from the straight guide (15) is located at the position of the spacer ring (13).

7. The transformer housing with the removable high voltage bushing according to claim 5, wherein the locking member (6) comprises a locking body (17) that is fixed to the lower connecting portion (12) in a sleeved manner, the upper end of the locking body (17) is provided with a pressing ring (18) that is matched with the spacing ring (13), and the lower end of the locking member (6) is provided with a guide portion (19) for supporting and positioning the transformer lead.

8. The transformer enclosure with the removable high voltage bushing according to claim 7, wherein the guiding portion (19) comprises a guiding frame (20) connected to the locking body (17), a guiding plate (21) is disposed at a bottom end of the guiding frame (20), and a guiding hole (22) for passing a transformer lead is formed at a center of the guiding plate (21).

9. Transformer enclosure with a detachable high voltage bushing according to claim 7, wherein the diameter of the upper connection part (11) is larger than the diameter of the spacer ring (13), and wherein the diameter of the spacer ring (13) is larger than the diameter of the pressure ring (18).

10. The transformer casing with the removable high-voltage bushing according to claim 5, wherein the upper connecting portion (11) is fixedly connected to the connection bushing (2) through a thread, the upper connecting portion (11) is further provided with a sealing coil (23), and a lower end of the sealing coil (23) abuts against a top end surface of the connection bushing (2) and covers a connection position of the upper connecting portion (11) and the connection bushing (2).