CN217426545U - Primary winding core mould of current transformer - Google Patents
Primary winding core mould of current transformer Download PDFInfo
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- CN217426545U CN217426545U CN202221095497.6U CN202221095497U CN217426545U CN 217426545 U CN217426545 U CN 217426545U CN 202221095497 U CN202221095497 U CN 202221095497U CN 217426545 U CN217426545 U CN 217426545U
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Abstract
The utility model relates to a current transformer technical field provides a current transformer primary winding coiling mandrel, including mandrel fixed plate and winding former, the winding former set up in on the mandrel fixed plate, the axle center direction of winding former is the vertical direction, and the coiling mode is the flat winding. By the technical scheme, the problem that the current transformer needs to penetrate through the secondary winding when the primary winding is wound is solved, the conventional winding core mould does not have a secondary winding supporting structure, and a secondary wire is easily scratched when the current transformer is wound; the winding mode of a primary winding of the current transformer is vertical winding, the axis direction is the horizontal direction, and the bottom is an operation blind area; in addition, the external diameter size and the outgoing line length of the primary winding have limited requirements, and if the external diameter size and the outgoing line length are measured manually, the operation working hours are longer; the problem remains to be improved in the operation convenience of the winding tool on the whole.
Description
Technical Field
The utility model relates to a current transformer technical field, it is specific, relate to a current transformer primary winding coiling mandrel.
Background
The primary winding of the current transformer is divided into a single-turn structure and a multi-turn structure, the winding of the primary winding of the single-turn structure is not needed, and the winding of the primary winding of the multi-turn structure is needed after the number of winding turns is determined. When a primary winding is wound, a winding core mould is needed for shaping, and the sizes of all parts of a finished product are ensured to be within a control range.
The current transformer primary winding needs to pass through the secondary winding when being wound, and the conventional winding core mould does not have a secondary winding support structure and is easy to scratch a secondary wire when being wound; the winding mode of a primary winding of the current transformer is vertical winding, the axis direction is the horizontal direction, and the bottom is an operation blind area; in addition, the external diameter size and the outgoing line length of the primary winding have limited requirements, and if the external diameter size and the outgoing line length are measured manually, the operation working hours are longer; the winding tool operation convenience remains to be improved on the whole.
SUMMERY OF THE UTILITY MODEL
The utility model provides a current transformer primary winding coiling mandrel has solved among the prior art current transformer primary winding coiling mode and has mostly been around immediately, and the axle center direction is the horizontal direction, and the bottom is the operation blind area, inconvenient wire winding, the inconvenient problem of the manual measurement of the length of being qualified for the next round of competitions.
The technical scheme of the utility model as follows:
a primary winding core mould of a current transformer comprises a core mould fixing plate and a winding mould, wherein the winding mould is arranged on the core mould fixing plate,
the axis direction of the winding die is the vertical direction, and the winding mode is flat winding.
As a further technical solution, it also includes,
a core mould movable plate, wherein a winding mould groove is arranged on the winding mould, the core mould movable plate is inserted into the winding mould groove,
the core mould bracket is arranged on the core mould fixing plate, a notch is formed in the position, below the winding mould, of the core mould fixing plate, and the core mould bracket is located below the notch.
As a further technical scheme, the winding mould fixing device further comprises a wiring board fixing plate, wherein the wiring board fixing plate is fixedly connected to the core mould fixing plate and is positioned behind the winding mould.
As a further technical scheme, the winding positioning device further comprises a winding positioning frame, wherein the winding positioning frame is positioned on the core mold fixing plate, and the winding positioning frame is positioned on the right side of the wiring board fixing plate.
As a further technical means, the core mold bracket includes,
two fixed side plates fixedly connected to the lower side of the core mold movable plate,
and the two support rods are fixedly connected to one side, far away from the core mold fixing plate, between the two fixing side plates.
The utility model discloses a theory of operation and beneficial effect do:
when the primary winding of the mutual inductor is wound, the primary wire needs to penetrate into the wound secondary winding, the secondary wire needs to be prevented from being worn in the process, the mandrel bracket is used as a bearing structure to enable the inner diameter range of the secondary winding to be suspended, and the secondary winding is prevented from being in direct contact with the primary wire; the primary wiring board is used as a constituent part of the primary winding, the positioning size of the primary wiring board has strict requirements on the subsequent procedures, and the wiring board fixing plate ensures the shaping of the position of the primary wiring board in the operation process;
the winding positioning frame has two functions, namely, preventing the external diameter size of the primary winding from being out of tolerance and serving as a cutting reference line at the tail end of the primary winding; the winding mode of the winding core mould is a flat winding mode, the axis direction is a vertical direction, and no field-of-view blind area exists in the operation process, so that the winding core mould is beneficial to human body operation; the winding core mold is simple and small in size, is provided with the mounting and fixing holes, and is convenient to detach and carry.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a three-dimensional structure of a primary winding core mold of the current transformer of the present invention;
fig. 2 is a schematic diagram of a three-dimensional structure of a primary winding core mold of the current transformer of the present invention;
in the figure: 1. the core mould fixing plate comprises a core mould fixing plate 2, a winding mould 3, a core mould movable plate 4, a core mould bracket 5, a wiring board fixing plate 6, a winding positioning frame 7, a fixing side plate 8 and a support rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.
As shown in fig. 1 to 2, the present embodiment provides a primary winding core winding mold of a current transformer, which includes a core mold fixing plate 1 and a winding mold 2, wherein the winding mold 2 is disposed on the core mold fixing plate 1,
the axis direction of the winding die 2 is vertical, and the winding mode is flat winding.
Also comprises the following steps of (1) preparing,
a core mold movable plate 3, a winding mold groove is arranged on the winding mold 2, the core mold movable plate 3 is inserted into the winding mold groove,
and the core mold bracket 4 is installed on the core mold fixing plate 1, a notch is formed in the position, below the winding mold 2, of the core mold fixing plate 1, and the core mold bracket 4 is positioned below the notch.
The wire winding mould further comprises a wiring board fixing plate 5, wherein the wiring board fixing plate 5 is fixedly connected to the core mould fixing plate 1, and the wiring board fixing plate 5 is located behind the winding mould 2.
In the embodiment, the current transformer primary winding core mould is required to be fixed on a primary winding frame or a winding table surface when in use, the core mould fixing plate 1 is provided with four threaded holes, bolts penetrate and are fixed from bottom to top when in fixing, and the bolts do not extend out of the surface of the core mould fixing plate 1 after fastening so as to ensure that no wire is hung when in winding;
when the current transformer primary winding is used for winding a core mould, the core mould movable plate 3 is firstly drawn out of the winding mould groove, the core mould movable plate 3 penetrates into the secondary winding, the core mould movable plate 3 is then inserted into the winding mould groove, so that the secondary winding can be hung on the core mould movable plate 3, and meanwhile, the bottom of the secondary winding can be supported on the core mould bracket 4; before winding, the primary wiring board is fixed on the wiring board fixing plate 5, and the primary winding is wound on the winding former 2.
The winding positioning frame 6 is further included, the winding positioning frame 6 is positioned on the core mold fixing plate 1, and the winding positioning frame 6 is positioned on the right side of the wiring board fixing plate 5.
In this embodiment, before winding, a positioning plate may be inserted into the winding positioning frame 6 for positioning and marking, or positioning and marking may be directly performed according to the winding positioning frame 6 itself, after winding starts, the outer diameter of the winding becomes larger and larger until the outer diameter edge of the winding is flush with the edge of the winding positioning frame 6 or the outer side of the winding contacts with the positioning plate in the winding positioning frame 6, and then the wire outlet end of the winding is aligned with the winding positioning frame 6 or the positioning plate and cut off, thereby limiting the outer diameter and the wire outlet length of the primary winding according to the winding positioning frame 6.
The core mold bracket 4 is comprised of,
a fixed side plate 7, two fixed side plates 7 are fixedly connected with the lower side of the core mould movable plate 3,
and the two support rods 8 are fixedly connected to one side, far away from the core mold fixing plate 1, between the two fixing side plates 7.
In this embodiment, the secondary winding may be suspended on the core mold movable plate 3, the bottom of the secondary winding may be supported on the core mold bracket 4, the secondary winding is located between the two fixed side plates 7, and the bottom of the secondary winding is supported on the two support rods 8.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A primary winding core mould of a current transformer comprises a core mould fixing plate (1) and a winding mould (2), wherein the winding mould (2) is arranged on the core mould fixing plate (1),
the winding machine is characterized in that the axis direction of the winding die (2) is a vertical direction, and the winding mode is flat winding.
2. The primary winding core mold of a current transformer according to claim 1, further comprising,
a core mold movable plate (3), a winding mold groove is arranged on the winding mold (2), the core mold movable plate (3) is inserted into the winding mold groove,
the core mould fixing plate comprises a core mould bracket (4), wherein the core mould bracket (4) is installed on a core mould fixing plate (1), a notch is formed in the position, below a winding mould (2), of the core mould fixing plate (1), and the core mould bracket (4) is located below the notch.
3. The primary winding core mold of the current transformer according to claim 2, characterized by further comprising a wiring board fixing plate (5), wherein the wiring board fixing plate (5) is fixedly connected to the core mold fixing plate (1), and the wiring board fixing plate (5) is located behind the winding mold (2).
4. A primary winding core mold of a current transformer according to any one of claims 1 to 3, characterized by further comprising a winding positioning frame (6), wherein the winding positioning frame (6) is positioned on the core mold fixing plate (1), and the winding positioning frame (6) is positioned at the right side of the wiring board fixing plate (5).
5. A primary winding mandrel for a current transformer according to claim 3, characterized in that the mandrel holder (4) comprises,
fixed side plates (7), the two fixed side plates (7) are fixedly connected with the lower side of the core mold movable plate (3),
and the two support rods (8) are fixedly connected to one side, far away from the core mold fixing plate (1), between the two fixed side plates (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221095497.6U CN217426545U (en) | 2022-05-09 | 2022-05-09 | Primary winding core mould of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221095497.6U CN217426545U (en) | 2022-05-09 | 2022-05-09 | Primary winding core mould of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217426545U true CN217426545U (en) | 2022-09-13 |
Family
ID=83185605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221095497.6U Active CN217426545U (en) | 2022-05-09 | 2022-05-09 | Primary winding core mould of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217426545U (en) |
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2022
- 2022-05-09 CN CN202221095497.6U patent/CN217426545U/en active Active
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