CN212209109U - Novel high-insulation transformer structure - Google Patents

Novel high-insulation transformer structure Download PDF

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Publication number
CN212209109U
CN212209109U CN202021001956.0U CN202021001956U CN212209109U CN 212209109 U CN212209109 U CN 212209109U CN 202021001956 U CN202021001956 U CN 202021001956U CN 212209109 U CN212209109 U CN 212209109U
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China
Prior art keywords
insulation
iron core
insulating
plate
transformer
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CN202021001956.0U
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Chinese (zh)
Inventor
吕大梅
李国文
张顺利
薛高峰
陈旺
赵娟
刘广林
逯凌娜
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GUAN BEIXIN SIGNAL OF RAILWAY CO Ltd
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GUAN BEIXIN SIGNAL OF RAILWAY CO Ltd
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Priority to CN202021001956.0U priority Critical patent/CN212209109U/en
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Abstract

The utility model discloses a novel high insulation transformer structure, including shell body and the transformer body of setting inside the shell body, the transformer body comprises primary coil winding at the iron core outer wall, primary coil end connection is in the output connector that sets up on the shell body outer wall, be provided with the insulating part that can separate the voltage impact between primary coil and the iron core, the insulating part includes side insulation board and insulating body, insulating body installation is fixed on the iron core outer wall and side insulation board is installed between secondary coil and primary, it is equipped with the bottom insulation board on the side insulation board and the shell body diapire that can completely cut off primary coil and shell body still to cover on the shell body lateral wall. The design of the structure is based on the characteristics of the material, and the high insulation and surge voltage resistance between the primary stage and the outer shell of the transformer are realized through reasonable structural design and processing.

Description

Novel high-insulation transformer structure
Technical Field
The utility model relates to a transformer technical field specifically is a novel high insulation transformer structure.
Background
A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions of the transformer include voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc., and the transformer can be divided into the following parts according to the purposes: distribution transformers, fully enclosed transformers, combined transformers, dry transformers, oil immersed transformers, single phase transformers, electric furnace transformers, rectifier transformers, etc.
The voltage surge between the parts of the transformer may cause damage, and the conventional transformer has a disadvantage of poor high insulation and surge voltage resistance between the primary and secondary coils and between the transformer and the housing
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel high insulation transformer structure to solve the problem of the high insulation and the impulse voltage resistance ability between the first stage of transformer and shell.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a novel high insulation transformer structure, includes the shell body and sets up the inside transformer body at the shell body, the transformer body comprises primary coil winding at the iron core outer wall, primary coil end connection is in the output connector who sets up on the shell body outer wall, be provided with the insulating part that can separate the voltage impact between primary coil and the iron core, the insulating part includes side insulation board and insulating body, insulating body erection fixation is on the iron core outer wall and the side insulation board is installed between secondary coil and primary, it is equipped with the bottom insulation board on the side insulation board and the shell body diapire that can completely cut off primary coil and shell body still to cover on the shell body lateral wall.
On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:
in one alternative: the insulating pipe body is formed by sleeving an insulating sleeve on the outside of the pull rod, a pressure plate sleeve is arranged at the port of the pull rod and the port of the insulating sleeve, and the pull rod and the insulating sleeve are fastened through a nut at the end part.
In one alternative: an iron core insulation board is arranged at the bottom of the iron core, and an iron core base plate is arranged between the iron core insulation board and the iron core.
In one alternative: an iron core insulation board is arranged at the bottom of the iron core, and an iron core base plate is arranged between the iron core insulation board and the iron core.
In one alternative: the side insulating plate, the iron core insulating plate, the bottom insulating plate, the insulating sleeve, the pressing plate sleeve and the iron core base plate are all made of epoxy insulating materials.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the design of the structure is based on the characteristics of the material, the high insulation and impact voltage resistance between the primary stage and the shell of the transformer can be realized through reasonable structural design and processing, epoxy insulation materials are added between the primary coil and the secondary coil, between the coil and the iron core, between the transformer and the shell and the like, and the insulation and impact resistance can be effectively improved.
The structure realizes high insulation among the primary, the secondary, the shell and the iron core of the transformer, can resist impact voltage, and can realize
1) The impact-resistant voltage between the primary and the secondary reaches 10 kV;
2) the impact voltage between the primary and the iron core is 10 kV;
3) the impulse voltage between the secondary and the iron core is 6 kV;
4) impact voltage between primary and secondary iron core and outer casing is 10kV
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic structural view of a portion a in fig. 1.
Notations for reference numerals: the coil comprises an outer shell 1, side insulating plates 2, an iron core insulating plate 3, a bottom insulating plate 5, a primary coil and secondary coil 6, an iron core 7, side insulating plates 8, an insulating tube body 9, a pull rod 12, an insulating sleeve 13, a pressure plate sleeve 14, an iron core backing plate 15 and a lower pressure plate 16.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.
Example 1
Referring to fig. 1 and 2, in the embodiment of the present invention, a novel high-insulation transformer structure includes an outer casing 1 and a transformer body disposed inside the outer casing 1, wherein the transformer body is formed by winding a primary coil 6 around an outer wall of an iron core 7, an end of the primary coil 6 is connected to an output connector disposed on the outer wall of the outer casing 1, an insulation member capable of blocking voltage impact is disposed between the primary coil 6 and the iron core 7, the insulation member includes a side insulation plate 8 and an insulation tube 9, the insulation tube 9 is mounted and fixed on the outer wall of the iron core 7, the side insulation plate 8 is mounted between the secondary coil and the primary coil, the side wall of the outer casing 1 is covered with a side insulation plate 2 capable of isolating the primary coil 6 from the outer casing 1, and a bottom insulation plate 5 is disposed on the bottom;
the arrangement of the side insulating plate 8 and the insulating tube body 9 can form partitions between the primary coil and the secondary coil and between the coil and the iron core, and the arrangement of the side insulating plate 2 can realize the partition between the transformer body and the outer shell 1, so that the high insulation and impact voltage resistance between the primary stage of the transformer and the outer shell 1 can be realized;
the insulating pipe body 9 is formed by sleeving an insulating sleeve 13 outside a pull rod 12, a pressure plate sleeve 14 is arranged at the port of the pull rod 12 and the port of the insulating sleeve 13, and the pull rod 12 and the insulating sleeve 13 are fastened through a nut at the end part;
the bottom of the iron core 7 is provided with an iron core insulating plate 3, an iron core base plate 15 is arranged between the iron core insulating plate 3 and the iron core 7, the bottom of the iron core 7 and the inside of the outer shell 1 can be isolated by the arrangement of the iron core insulating plate 3, a lower pressing plate 16 covering the iron core insulating plate 3 is arranged outside the iron core insulating plate, and the iron core insulating plate is connected with the insulating tube body 9 through the lower pressing plate 16.
Example 2
The embodiment of the utility model provides a difference with embodiment 1 lies in: the side insulating plate 2, the iron core insulating plate 3, the bottom insulating plate 5, the insulating sleeve 13, the pressing plate sleeve 14 and the iron core backing plate 15 are all made of epoxy insulating materials.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (5)

1. A novel high-insulation transformer structure comprises an outer shell (1) and a transformer body arranged in the outer shell (1), the transformer body is formed by winding a primary coil (6) and a secondary coil (6) on the outer wall of an iron core (7), it is characterized in that the end part of the primary and secondary coil (6) is connected with an output connector arranged on the outer wall of the outer shell (1), an insulating part capable of blocking voltage impact is arranged between the primary and secondary coils (6) and the iron core (7), the insulating part comprises a side insulating plate (8) and an insulating pipe body (9), the insulating pipe body (9) is fixedly arranged on the outer wall of the iron core (7), the side insulating plate (8) is arranged between the secondary coil and the primary coil, still cover on the lateral wall of shell body (1) and be equipped with bottom insulation board (5) on side insulation board (2) and shell body (1) diapire that can completely cut off primary and secondary coil (6) and shell body (1).
2. The novel high-insulation transformer structure according to claim 1, wherein the insulation pipe body (9) is formed by sleeving an insulation sleeve (13) on the outside of the pull rod (12), a pressure plate sleeve (14) is arranged at the port of the pull rod (12) and the port of the insulation sleeve (13), and the pull rod (12) and the insulation sleeve (13) are fastened through nuts at the end parts.
3. The novel high-insulation transformer structure according to claim 1, characterized in that the bottom of the iron core (7) is provided with an iron core insulation plate (3) and an iron core backing plate (15) is arranged between the iron core insulation plate (3) and the iron core (7).
4. The novel high-insulation transformer structure according to claim 3, characterized in that the core insulation plate (3) is externally provided with a lower pressing plate (16) covered thereon and connected with the insulation tube body (9) through the lower pressing plate (16).
5. The novel high-insulation transformer structure according to claim 1, wherein the side insulating plates (2), the core insulating plate (3), the bottom insulating plate (5), the insulating sleeve (13), the pressure plate sleeve (14) and the core pad (15) are all made of epoxy insulating materials.
CN202021001956.0U 2020-06-04 2020-06-04 Novel high-insulation transformer structure Active CN212209109U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021001956.0U CN212209109U (en) 2020-06-04 2020-06-04 Novel high-insulation transformer structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021001956.0U CN212209109U (en) 2020-06-04 2020-06-04 Novel high-insulation transformer structure

Publications (1)

Publication Number Publication Date
CN212209109U true CN212209109U (en) 2020-12-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021001956.0U Active CN212209109U (en) 2020-06-04 2020-06-04 Novel high-insulation transformer structure

Country Status (1)

Country Link
CN (1) CN212209109U (en)

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