Multifunctional current transformer primary winding winding tooling fixture

CN224773712UActive Publication Date: 2026-09-18TIANSHUI CHANGKAI MUTUAL INDUCTOR MFR
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Patent Information

Application Number
CN202521826222.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2026-09-18
Estimated Expiration
2035-08-27

AI Technical Summary

Technical Problem

传统的一次绕线工装存在明显缺陷:每种二次线圈组合都需对应一套专用一次绕线工装胎具,导致工装胎具数量与二次线圈组合数一一对应

Benefits of technology

本实用新型通过调节左框组合体和右框组合体之间的距离,可适配多种二次线圈组合,无需频繁更换工装,减少工装数量,实现了窗口尺寸的灵活调节,有效解决了传统工装的局限性,降低了生产成本,适用于多种电流互感器一次绕组的绕制场景。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to current transformer production equipment technical field, and its purpose lies in providing a kind of multifunctional current transformer primary winding winding tooling fixture, including lower fixed bottom plate, left frame combination and adjusting assembly, left frame combination is oppositely arranged with right frame combination, and right frame combination is slidably installed on lower fixed bottom plate;The one end of adjusting assembly is rotatably installed in the one end of right frame combination, for driving right frame combination to move;Coil through plate is installed between left frame combination and right frame combination, and coil through plate is used to carry secondary coil.The utility model can be adapted to a variety of secondary coil combinations by adjusting the distance between left frame combination and right frame combination, without frequently replacing tooling, reduce tooling quantity, realize the flexible adjustment of window size, effectively solve the limitation of traditional tooling, reduce production cost, applicable to the winding scene of a variety of current transformer primary winding.
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Description

Technical Field

[0001] This utility model relates to the technical field of current transformer production equipment, and in particular to a multifunctional current transformer primary winding winding fixture. Background Technology

[0002] In the production process of current transformers, the winding of the primary winding requires specialized tooling fixtures. Traditional primary winding tooling has significant drawbacks: each type of secondary coil combination requires a corresponding set of specialized primary winding tooling fixtures, resulting in a one-to-one correspondence between the number of tooling fixtures and the number of secondary coil combinations. In actual production, this not only necessitates frequent tooling changes, but also, for non-standard secondary coil combinations, the primary winding is often impossible to complete due to limitations imposed by the inherent tooling fixture window size, severely limiting the process and increasing production costs and operational complexity. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional current transformer primary winding winding tooling fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multifunctional current transformer primary winding winding fixture includes a lower fixed base plate, and further includes: A left frame assembly is installed on one end of the upper surface of the lower fixed base plate. The left frame assembly is arranged opposite to the right frame assembly, and the right frame assembly is slidably installed on the lower fixed base plate. An adjustment assembly is installed on the other end of the upper surface of the lower fixed base plate. One end of the adjustment assembly is rotatably installed on the end of the right frame assembly away from the left frame assembly, and is used to drive the right frame assembly to move and adjust the distance between the left frame assembly and the right frame assembly. A coil core plate is installed between the left frame assembly and the right frame assembly. The coil core plate is used to carry the secondary coil.

[0005] The top of both the left and right frame assemblies is an "L" shape, and the left and right frame assemblies and the coil core plate are combined to form a rectangular frame structure.

[0006] The bottom of the right frame assembly is provided with a sliding plate, on which two guide locking bolts are provided. The lower fixed base plate is provided with an elongated hole that matches the guide locking bolts. The bottom end of the guide locking bolt is threaded through the elongated hole and a nut is installed.

[0007] A bearing seat is fixedly installed on the upper surface of the end of the slide plate near the adjustment component.

[0008] The adjustment assembly includes a lead screw, a lead screw support, and an L-shaped handle. The L-shaped handle is fixedly installed at the end of the lead screw, the lead screw is rotatably installed on the lead screw support, the lead screw support is fixedly installed on the lower fixed base plate, and the front end of the lead screw is rotatably installed on a bearing seat.

[0009] A ruler is provided on the side of the lower fixed base plate at the position corresponding to the right frame assembly.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: This invention can adapt to various secondary coil combinations by adjusting the distance between the left and right frame assemblies, eliminating the need for frequent tooling changes, reducing the number of tooling components, and enabling flexible adjustment of the window size. It effectively solves the limitations of traditional tooling, reduces production costs, and is suitable for various winding scenarios of primary windings of current transformers. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0012] Attached figures and their names: 1. Secondary coil, 2. Left frame assembly, 3. Coil core plate, 4. Right frame assembly, 5. Guide locking bolt, 6. Lower fixed base plate, 7. Lead screw, 8. Lead screw support seat, 9. L-shaped handle, 10. Scale. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] like Figure 1As shown, the multifunctional current transformer primary winding winding fixture of this utility model includes a lower fixed base plate 6. A left frame assembly 2 is bolted to one end of the upper surface of the lower fixed base plate 6, and an adjustment component is installed at the other end. The left frame assembly 2 and the right frame assembly 4 are arranged opposite to each other. The top of both the left frame assembly 2 and the right frame assembly 4 are "L" shaped structures. A coil core plate 3 is installed between the left frame assembly 2 and the right frame assembly 4. The coil core plate 3 is used to support the secondary coil 1. The left frame assembly 2, the right frame assembly 4, and the coil core plate 3 are combined to form a rectangular frame structure.

[0016] The bottom of the right frame assembly 4 is equipped with a sliding plate, on which two guide locking bolts 5 are provided. The lower fixed base plate 6 has an elongated hole that matches the guide locking bolts 5. The bottom end of the guide locking bolt 5 passes through the elongated hole and is threaded with a nut. The right frame assembly 4 is slidably installed in the elongated hole on the lower fixed base plate 6 through the guide locking bolts 5 and the nut. The position of the right frame assembly 4 can be locked by using the guide locking bolts 5 and the nut.

[0017] The adjustment assembly includes a lead screw 7, a lead screw support 8, and an L-shaped handle 9. The L-shaped handle 9 is fixedly installed at the end of the lead screw 7, and the lead screw 7 is rotatably mounted on the lead screw support 8, which is fixedly mounted on the lower fixed base plate 6. A bearing seat is fixedly installed on the upper surface of the slide plate near the adjustment assembly, and the front end of the lead screw 7 is rotatably mounted on the bearing seat. The lead screw 7 and the L-shaped handle 9 are used to drive the right frame assembly 4 to move, adjusting the distance between the left frame assembly 2 and the right frame assembly 4. This allows for the use of coil core plates 3 of different sizes to achieve the required mold window size for single winding (including single secondary coils, combinations of two secondary coils, and combinations of three secondary coils). This changes the limitations of traditional tooling, which has many tooling types and makes it difficult to achieve most sizes. At the same time, a scale 10 is set on the side of the lower fixed base plate 6 corresponding to the right frame assembly 4, which can accurately adjust the window size composed of the left frame assembly 2 and the right frame assembly 4, meeting the design requirements of non-standard products.

Claims

1. A multifunctional current transformer primary winding winding tool mold fixture, comprising a lower fixed bottom plate (6), characterized in that, Also includes: A left frame assembly (2) is installed on one end of the upper surface of the lower fixed base plate (6). The left frame assembly (2) is arranged opposite to the right frame assembly (4), and the right frame assembly (4) is slidably installed on the lower fixed base plate (6). An adjustment assembly is installed on the other end of the upper surface of the lower fixed base plate (6). One end of the adjustment assembly is rotatably installed on the end of the right frame assembly (4) away from the left frame assembly (2) to drive the right frame assembly (4) to move and adjust the distance between the left frame assembly (2) and the right frame assembly (4). A coil core plate (3) is installed between the left frame assembly (2) and the right frame assembly (4), and the coil core plate (3) is used to carry the secondary coil (1).

2. The multi-functional current transformer primary winding winding tooling fixture of claim 1, wherein: The top of the left frame assembly (2) and the right frame assembly (4) are both "L" shaped structures, and the left frame assembly (2), the right frame assembly (4) and the coil core plate (3) are combined to form a rectangular frame structure.

3. The multi-functional current transformer primary winding winding tooling fixture of claim 2, wherein: The bottom of the right frame assembly (4) is provided with a sliding plate, and two guide locking bolts (5) are provided on the sliding plate. The lower fixed base plate (6) is provided with an elongated hole that matches the guide locking bolts (5). The bottom end of the guide locking bolts (5) is threaded through the elongated hole and a nut is installed.

4. The multi-functional current transformer primary winding winding tooling fixture of claim 3, wherein: A bearing seat is fixedly installed on the upper surface of the end of the slide plate near the adjustment component.

5. The multi-functional current transformer primary winding winding tooling fixture of claim 4, wherein: The adjustment assembly includes a lead screw (7), a lead screw support (8), and an L-shaped handle (9). The L-shaped handle (9) is fixedly installed at the end of the lead screw (7). The lead screw (7) is rotatably installed on the lead screw support (8). The lead screw support (8) is fixedly installed on the lower fixed base plate (6). The front end of the lead screw (7) is rotatably installed on the bearing seat.

6. The multi-functional current transformer primary winding winding tooling fixture of claim 1, wherein: A ruler (10) is provided on the side of the lower fixed base plate (6) at the position corresponding to the right frame assembly (4).