Voltage transformer

By improving the sheath design and bolt connection structure of the voltage transformer, the problem of difficult disassembly of voltage transformer components in the existing technology has been solved, realizing convenient disassembly and maintenance, and enhancing the stability and sealing of the installation.

CN223770938UActive Publication Date: 2026-01-06ZHEJIANG TAIFENG HIGH VOLTAGE ELECTRICAL CO LTD
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Patent Information

Application Number
CN202520166976.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-06
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Key components in existing voltage transformers, such as windings and cores, are difficult to disassemble, making maintenance or replacement difficult and hindering effective repair or recycling.

Method used

The design employs an upper and lower insulating sheath, and through the cooperation of the mating edge and the mating sleeve, combined with the connection of fixing bolts and fixing plates, it achieves sealing and stability, facilitates disassembly and maintenance, and the adjustable installation of the channel steel ensures the stable installation of the voltage transformer.

Benefits of technology

It improves the ease of disassembly, assembly, and maintenance of voltage transformers, facilitates the replacement and repair of local components, and enhances the stability and sealing of the installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of transformers, and particularly discloses a voltage transformer which comprises a transformer body, the transformer body comprises an upper insulating sheath and a lower insulating sheath, the outer side of the top of the lower insulating sheath is connected with a butt joint edge, the outer side of the bottom of the upper insulating sheath is connected with a butt joint sleeve, and the bottom of the butt joint sleeve is provided with a groove matched with the butt joint edge; the fixing piece is used for stabilizing the connection between the butt joint edge and the butt joint sleeve; according to the utility model, the upper insulating sheath and the lower insulating sheath are in butt joint, the butt joint edge and the butt joint sleeve are in butt joint, the butt joint edge is arranged in the groove, the butt joint sealing performance is improved, then the fixing bolt and the fixing plate are connected, a nut corresponding to the fixing bolt can be installed at the bottom of the fixing plate, the connection stability is improved, subsequent maintenance and local part replacement are facilitated, and disassembly and assembly are also facilitated; the voltage transformer is installed at the target position, the position of the channel steel can be adjusted, the channel steel is connected to the target position, installation of the voltage transformer is stabilized, and follow-up wiring is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a voltage transformer. Background Technology

[0002] A voltage transformer is an instrument used to transform voltage; its working principle is based on the law of electromagnetic induction. The basic structure of a voltage transformer is very similar to that of a transformer, mainly consisting of primary and secondary coils (windings), an iron core, and insulation. Both windings are mounted on or wound around the iron core, and there is insulation between the two windings and between the windings and the iron core, providing electrical isolation between them.

[0003] In existing voltage transformers, the core components and their connected wiring are placed inside a casting mold, making the transformer's outer casing a single piece. For some critical components, such as windings and the core, problems can lead to difficulties in effective repair or replacement due to the difficulty of disassembly. Furthermore, internal component repair or recycling requires breaking open the insulating outer casing. To address these issues, a new voltage transformer is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a voltage transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A voltage transformer, comprising

[0007] The transformer body includes an upper insulating sleeve and a lower insulating sleeve. The outer top of the lower insulating sleeve is connected to a mating edge, and the outer bottom of the upper insulating sleeve is connected to a mating sleeve. The bottom of the mating sleeve is provided with a groove that mates with the mating edge.

[0008] A fastener for stabilizing the connection between the mating edge and the mating sleeve, comprising a fixing bolt threaded to the outer wall of the mating sleeve and a fixing plate connected to the outer wall of the lower insulating sheath, wherein the fixing plate is provided with a threaded hole that engages with the threaded fixing bolt.

[0009] The mounting component includes a channel steel and a mounting strip, the mounting strip being connected to the bottom of the lower insulating sheath by bolt A, and the channel steel being connected to the bottom of the mounting strip by bolt B; and

[0010] Core assembly housed within the upper and lower insulating sheaths.

[0011] In one alternative: the bolt component A includes a threaded seat and a positioning bolt A. The threaded seat is fixedly connected to the bottom of the side wall of the lower insulating sleeve, and the positioning bolt A is threadedly connected to the bottom of the threaded seat. The mounting strip has a strip-shaped hole, and the rod of the positioning bolt A passes through the strip-shaped hole.

[0012] In one alternative: the mounting strip is provided in two sets, with one set of mounting strips corresponding to two sets of threaded seats.

[0013] In one alternative: the bolt component B includes a positioning bolt B and a limiting block, the limiting block is disposed on the top of the mounting strip, the channel steel is provided with a through hole, the positioning bolt B is threadedly connected to the limiting block, and the shank of the positioning bolt B passes through the through hole and the strip hole.

[0014] In one alternative: the channel steel is provided in two sets.

[0015] In one alternative: the core assembly includes a winding and an iron core disposed between an upper insulating sheath and a lower insulating sheath.

[0016] In one alternative: the top of the upper insulating sheath is connected to a high-voltage terminal, and one side of the bottom of the lower insulating sheath is connected to a low-voltage terminal.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the upper and lower insulating sleeves are joined together, with the joint edge aligning with the joint sleeve. The joint edge is inserted into a groove to improve the joint sealing. Then, fixing bolts and a fixing plate are connected. Nuts corresponding to the fixing bolts can be installed at the bottom of the fixing plate to improve connection stability. Subsequent maintenance and replacement of local components are also convenient. When the voltage transformer is installed at the target position, the position of the channel steel can be adjusted to ensure that the channel steel is connected at the target position, stabilizing the installation of the voltage transformer and facilitating subsequent wiring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the mounting component in this utility model.

[0021] Figure 3 This is a schematic diagram showing the disassembled structure of the main body of the current transformer in this utility model.

[0022] Figure 4 This is a schematic diagram of the core component of this utility model.

[0023] In the diagram: 100, transformer body; 200, fastener; 300, mounting component; 400, core assembly;

[0024] 101. Upper insulating sleeve; 102. Lower insulating sleeve; 103. High-voltage terminal; 104. Low-voltage terminal; 105. Butt joint edge; 106. Butt joint sleeve; 107. Groove;

[0025] 201. Fixing bolts; 202. Fixing plate;

[0026] 301. Channel steel; 302. Mounting strip; 303. Threaded seat; 304. Positioning bolt A; 305. Strip hole; 306. Positioning bolt B; 307. Limiting block;

[0027] 401. Winding; 402. Iron core. Detailed Implementation

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4 In this embodiment, a voltage transformer includes...

[0031] The transformer body 100 includes an upper insulating sleeve 101 and a lower insulating sleeve 102. The outer top of the lower insulating sleeve 102 is connected to a mating edge 105, and the outer bottom of the upper insulating sleeve 101 is connected to a mating sleeve 106. The bottom of the mating sleeve 106 is provided with a groove 107 that mates with the mating edge 105.

[0032] The fastener 200 is used to stabilize the connection between the mating edge 105 and the mating sleeve 106. It includes a fixing bolt 201 threaded to the outer wall of the mating sleeve 106 and a fixing plate 202 connected to the outer wall of the lower insulating sleeve 102. The fixing plate 202 is provided with a screw hole that is threaded to the fixing bolt 201.

[0033] Mounting component 300 includes a channel steel 301 and a mounting strip 302, wherein the mounting strip 302 is connected to the bottom of the lower insulating sleeve 102 by bolt A, and the channel steel 301 is connected to the bottom of the mounting strip 302 by bolt B; and

[0034] Core assembly 400 disposed within upper insulating sheath 101 and lower insulating sheath 102;

[0035] Using the above scheme, after the core component 400 is installed, the upper insulating sleeve 101 and the lower insulating sleeve 102 are connected, the connecting edge 105 is connected to the connecting sleeve 106, and the connecting edge 105 is placed in the groove 107 to improve the sealing performance of the connection. Then, the fixing bolt 201 is connected to the fixing plate 202. Nuts corresponding to the fixing bolt 201 can be installed at the bottom of the fixing plate 202 to improve the connection stability. It is also convenient to disassemble and assemble for subsequent maintenance and replacement of local parts.

[0036] The voltage transformer is installed at the target location. The position of the adjustable channel steel 301 is adjusted to connect the channel steel 301 to the target location, stabilizing the installation of the voltage transformer and facilitating subsequent wiring.

[0037] Reference Figure 2 The bolt component A includes a threaded seat 303 and a positioning bolt A304. The threaded seat 303 is fixedly connected to the bottom of the side wall of the lower insulating sleeve 102. The bottom of the threaded seat 303 is threadedly connected to the positioning bolt A304. The mounting strip 302 is provided with a strip-shaped hole 305, and the rod of the positioning bolt A304 passes through the strip-shaped hole 305.

[0038] Specifically, the mounting strip 302 is placed at the bottom of the lower insulating sleeve 102 and the threaded seat 303, and the position of the mounting strip 302 can be fixed using the positioning bolt A304.

[0039] Reference Figure 2 The mounting strip 302 is provided in two sets, with one set of mounting strip 302 corresponding to two sets of threaded seats 303.

[0040] Reference Figure 2 and Figure 3 The bolt component B includes a positioning bolt B306 and a limiting block 307. The limiting block 307 is disposed on the top of the mounting strip 302. The channel steel 301 has a through hole. The positioning bolt B306 is threadedly connected to the limiting block 307. The rod of the positioning bolt B306 passes through the through hole and the strip hole 305.

[0041] Specifically, by using the positioning bolt B306 in conjunction with the limiting block 307, the channel steel 301 can be locked and fixed at the bottom of the mounting strip 302, and the horizontal position of the channel steel 301 can be adjusted according to the actual installation situation.

[0042] Reference Figure 3The channel steel 301 is provided in two sets; the channel steel 301 can be used as a support for the voltage transformer to be installed at the target position. The channel steel 301 can be drilled with additional holes, and existing bolts or screws can be used for connection when installing at the target position.

[0043] Reference Figure 4 The core assembly 400 includes a winding 401 and an iron core 402 disposed between the upper insulating sleeve 101 and the lower insulating sleeve 102. The winding 401 is wound on the iron core 402, and an insulating sleeve is disposed in the middle. The core assembly 400 is an existing component, and will not be described in detail in this application.

[0044] Reference Figure 1 The top of the upper insulating sleeve 101 is connected to the high-voltage terminal 103, and the bottom side of the lower insulating sleeve 102 is connected to the low-voltage terminal 104.

[0045] The working principle of this utility model is as follows: After the core component 400 is installed, the upper insulating sleeve 101 and the lower insulating sleeve 102 are connected, the connecting edge 105 is connected with the connecting sleeve 106, and the connecting edge 105 is placed in the groove 107 to improve the sealing performance of the connection. Then, the fixing bolt 201 is connected to the fixing plate 202. The nut corresponding to the fixing bolt 201 can be installed at the bottom of the fixing plate 202 to improve the connection stability. It is also convenient to disassemble and assemble for subsequent maintenance and replacement of local parts.

[0046] By using the positioning bolt B306 in conjunction with the limiting block 307, the channel steel 301 can be locked and fixed to the bottom of the mounting strip 302. The horizontal position of the channel steel 301 can be adjusted according to the actual installation situation. Alternatively, the channel steel 301 can be directly installed at the bottom of the threaded seat 303, but the position of the channel steel 301 cannot be adjusted in this case.

[0047] The voltage transformer is installed at the target location. The position of the adjustable channel steel 301 is adjusted to connect the channel steel 301 to the target location, stabilizing the installation of the voltage transformer and facilitating subsequent wiring.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A voltage transformer, characterized by The utility model relates to a kind of transformer main body (100), including upper insulating sheath (101) and lower insulating sheath (102), the lower insulating sheath (102) top outer side is connected with butt joint (105), the upper insulating sheath (101) bottom outer side is connected with butt joint sleeve (106), the butt joint sleeve (106) bottom is equipped with recess (107) with butt joint (105) cooperation; Fixing piece (200) is used to stabilize the connection of butt joint (105) and butt joint sleeve (106), which includes fixing bolt (201) screwed on the outer wall of butt joint sleeve (106) and fixing plate (202) connected to the outer wall of lower insulating sheath (102), and the fixing plate (202) is provided with screw hole matched with fixing bolt (201); Mounting piece (300) includes channel steel (301) and mounting strip (302), the mounting strip (302) is connected to the bottom of lower insulating sheath (102) by bolt A, and the channel steel (301) is connected to the bottom of mounting strip (302) by bolt B; And Core assembly (400) is arranged in upper insulating sheath (101) and lower insulating sheath (102). The bolt A includes threaded seat (303) and positioning bolt A (304), the threaded seat (303) is fixedly connected to the bottom of the side wall of lower insulating sheath (102), the threaded seat (303) is screwed with positioning bolt A (304) at the bottom, and the mounting strip (302) is provided with strip hole (305), and the rod of positioning bolt A (304) passes through strip hole (305).

2. A voltage transformer according to claim 1, characterised in that: The mounting strip (302) is provided with two groups, and one group of mounting strip (302) corresponds to two groups of threaded seat (303).

3. A voltage transformer according to claim 2, characterised in that: The bolt B includes positioning bolt B (306) and limiting block (307), the limiting block (307) is arranged on the top of mounting strip (302), the channel steel (301) is provided with perforation, the positioning bolt B (306) is screwed with limiting block (307), and the rod of positioning bolt B (306) passes through perforation and strip hole (305).

4. A voltage transformer according to claim 1, characterized in that: The channel steel (301) is provided with two groups.

5. A voltage transformer according to claim 4, characterised in that: The core assembly (400) includes winding (401) and iron core (402) arranged between upper insulating sheath (101) and lower insulating sheath (102).

6. A voltage transformer according to claim 1, characterized in that: The top of upper insulating sheath (101) is connected with high-voltage terminal (103), and the bottom of lower insulating sheath (102) is connected with low-voltage terminal (104) on one side.

7. A voltage transformer according to claim 1, characterized in that: ​