Five-splicing structure of transformer iron core

By adopting a combination design of triangular fixing base and binding strap connection in the five-layer stacked structure of transformer core, the problem of easy failure of drive mechanism in the existing technology is solved, and the stability of core stacking and maintenance cost reduction are achieved.

CN224217329UActive Publication Date: 2026-05-08FOSHAN HENGHE ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN HENGHE ELECTRIC CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the existing five-layer stacked structure of transformer core, the first and second bevel gears used as the drive mechanism are prone to failure, resulting in frequent maintenance and increased maintenance costs.

Method used

The system employs a combination structure consisting of a triangular fixing base, silicon steel sheets, a first binding strap, a second binding strap, a rotating head, a pressure plate, a connecting plate, a moving cylinder, and a lead screw. The silicon steel sheets are stably stacked through the limiting position on the triangular fixing base and the binding strap connection, and the silicon steel sheets are clamped and fixed by the cooperation of the lead screw and the rotating head.

Benefits of technology

It improves the stability of the iron core stacked structure, reduces the failure rate, and decreases the maintenance frequency and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of transformer iron cores, in particular to a transformer iron core five-splicing structure which comprises a triangular fixing base, silicon steel sheets, a first binding band, second binding bands, a rotary knob head, a pressing plate, a connecting plate, a movable cylinder and a lead screw. Five silicon steel sheets are spliced into a group and are connected through the first binding band, and the groups are connected through the second binding bands; triangular fixing seats are arranged on the upper sides and the lower sides of the silicon steel sheets, the silicon steel sheets are pressed and fixed through pressing plates, connecting plates are installed between the pressing plates and moving cylinders, the moving cylinders are installed on lead screws, the lead screws are connected with rotating button heads, the five silicon steel sheets are spliced into a group, and each group of silicon steel sheets are placed on the triangular fixing seats in a triangular mode and limited through abutting plates. At the moment, a rotating head at the bottom is twisted to enable a screw rod to rotate, so that a moving cylinder moves downwards, a pressing plate is pushed through a connecting plate, and the pressing plate and an abutting plate clamp the five spliced silicon steel sheets.
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Description

Technical Field

[0001] This utility model relates to the field of transformer cores, specifically to a five-layer stacked structure for transformer cores. Background Technology

[0002] A transformer is a device that utilizes the characteristics of electromagnetic induction to make the output voltage a fixed ratio to the input voltage. A complete transformer is constructed from various parts, and the iron core is one of these parts. During the assembly of the iron core, a stacking operation is usually required. A Chinese patent discloses a five-stack structure for a transformer iron core (authorization announcement number CN219497509 U). This patented technology uses the cooperation of components such as a fixed base, limiting components, side plates, sliding rods, threaded rods, limiting plates, a drive structure, a first bevel gear, a second bevel gear, a damping shaft, and a knob. When the drive mechanism operates, it drives three sets of limiting components to work simultaneously, thereby clamping and fixing the stacked steel-silicon sheets. However, this design uses the first and second bevel gears as the drive, making the structure prone to failure and requiring frequent maintenance, increasing maintenance costs. Therefore, those skilled in the art have provided a five-stack structure for a transformer iron core to solve the problems mentioned in the background art. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a five-layer stacked structure for transformer cores, including a triangular fixing seat, silicon steel sheets, a first binding strap, a second binding strap, a rotating head, a pressing plate, a connecting plate, a moving cylinder, and a lead screw. The silicon steel sheets are stacked in groups of five, and the five silicon steel sheets are connected by the first binding strap. Each group is connected by the second binding strap. Triangular fixing seats are provided on both the upper and lower sides of the silicon steel sheets. The silicon steel sheets are pressed and fixed by the pressing plate. A connecting plate is installed between the pressing plate and the moving cylinder. The moving cylinder is installed on the lead screw, and the lead screw is connected to the rotating head.

[0004] Preferably, the silicon steel sheet has a first groove and a second groove at both the top and bottom ends, and a first binding strap is installed on the first groove and the second groove. The silicon steel sheet has a third groove at both the left and right ends, and a second binding strap is installed on the third groove.

[0005] Preferably, a backing plate is installed on the outer side of the upper side of the triangular fixing seat, and a silicon steel sheet is stacked between the backing plate and the clamping plate;

[0006] Preferably, the triangular fixing seat has a shaft hole at its center, three rail plates are installed on the upper side of the triangular fixing seat, the rail plates have a moving groove, and the moving groove has a limiting groove.

[0007] Preferably, a movable block is installed in the movable groove, a pressing plate is installed on the upper side of the movable block, and limiting plates are installed on the two side walls of the movable block. The limiting plates can move within the limiting groove.

[0008] Preferably, a first side plate is installed on the rear side wall of the clamping plate, the first side plate and the connecting plate are connected by a shaft, the other end of the connecting plate and the second side plate are connected by a shaft, the second side plate is installed on the outer side wall of the moving cylinder, and the screw shaft and the knob are connected.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. Five silicon steel sheets are stacked together as a group. Each group of silicon steel sheets is placed in a triangular shape on a triangular fixed base. Three rail plates are installed on the upper side of the triangular fixed base. The rail plates have a moving groove and a limiting groove. A moving block is installed in the moving groove. A pressure plate is installed on the upper side of the moving block. Limiting plates are installed on both sides of the moving block. The limiting plates can move in the limiting groove and are limited by the abutment plate. At this time, the bottom rotating head is turned to rotate the screw, which causes the moving cylinder to move down. The connecting plate pushes the pressure plate, so that the pressure plate and the abutment plate clamp the five stacked silicon steel sheets. This design structure is not prone to failure.

[0011] 2. Since the silicon steel sheets are provided with a first groove and a second groove at both the top and bottom ends, the five silicon steel sheets are bound together in the first groove and the second groove by the first strap. The silicon steel sheets are provided with a third groove at both the left and right ends, and the three grooves of each group are bound together in the third groove by the second strap. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a five-layer stacked structure of a transformer core provided in an embodiment of this application;

[0013] Figure 2 This application provides a five-layer stacked structure for a transformer core. Figure 1 Enlarged schematic diagram of structure A;

[0014] Figure 3 This is a schematic diagram of the silicon steel sheet structure in a five-layer stacked structure of a transformer core provided in an embodiment of this application;

[0015] Figure 4 This is a partial structural diagram of a five-layered transformer core structure provided in an embodiment of this application;

[0016] Figure 5 This is a partial exploded structural diagram of a transformer core five-layer stacked structure provided in an embodiment of this application;

[0017] Figure 6 This application provides a five-layer stacked structure for a transformer core. Figure 5 An enlarged schematic diagram of the B structure.

[0018] In the diagram: 1. Triangular fixing seat; 2. Silicon steel sheet; 3. First binding strap; 4. Second binding strap; 5. Rotating knob; 6. Pressing plate; 7. Connecting plate; 8. Moving cylinder; 9. Lead screw; 10. Shaft; 101. Abutment plate; 102. Rail base plate; 103. Moving groove; 104. Limiting groove; 105. Shaft hole; 201. First groove; 202. Second groove; 203. Third groove; 601. First side plate; 602. Moving block; 603. Limiting plate; 801. Second side plate; 901. Rotating shaft. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0020] Please see Figures 1-6 This embodiment provides a five-layer stacked structure for a transformer core, including a triangular fixing seat 1, silicon steel sheets 2, a first binding strap 3, a second binding strap 4, a rotating head 5, a pressing plate 6, a connecting plate 7, a moving cylinder 8, and a screw 9. Five silicon steel sheets 2 are stacked together as a group, and the five silicon steel sheets 2 are connected by the first binding strap 3. Each group is connected by the second binding strap 4. Triangular fixing seats 1 are provided on both the upper and lower sides of the silicon steel sheets 2. The silicon steel sheets 2 are pressed and fixed by the pressing plate 6. The connecting plate 7 is installed between the pressing plate 6 and the moving cylinder 8. The moving cylinder 8 is installed on the screw 9, and the screw 9 is connected to the rotating head 5.

[0021] Specifically, the silicon steel sheet 2 has a first groove 201 and a second groove 202 at both its upper and lower ends. A first strap 3 is installed on the first groove 201 and the second groove 202. The silicon steel sheet 2 has a third groove 203 at both its left and right ends. A second strap 4 is installed on the third groove 203. A stop plate 101 is installed on the upper side of the triangular fixing base 1, slightly off the outer wall. The silicon steel sheet 2 is stacked between the stop plate 101 and the pressing plate 6. A shaft hole 105 is provided at the center of the triangular fixing base 1. Three rail base plates 102 are installed on the upper side of the triangular fixing base 1. The rail base plates 102 have a moving groove 103 inside. The moving groove 103 is provided with a limiting groove 104. The moving block 602 is installed in the moving groove 103. The pressing plate 6 is installed on the upper side of the moving block 602. The limiting plates 603 are installed on both sides of the moving block 602. The limiting plates 603 can move within the limiting groove 104. The first side plate 601 is installed on the rear side wall of the pressing plate 6. The first side plate 601 and the connecting plate 7 are connected by a shaft 10. The other end of the connecting plate 7 is connected to the second side plate 801 by a shaft 10. The second side plate 801 is installed on the outer side wall of the moving cylinder 8. The rotating shaft 901 of the lead screw 9 is connected to the rotating knob 5.

[0022] The working principle of this utility model is as follows:

[0023] In a transformer core five-layer stacked structure, five silicon steel sheets 2 are stacked together as a group. Each group of silicon steel sheets 2 is placed triangularly on a triangular fixing seat 1 and limited by a stop plate 101. At this time, the bottom rotating head 5 is turned to rotate the lead screw 9, causing the moving cylinder 8 to move down. The connecting plate 7 pushes the pressing plate 6, so that the pressing plate 6 and the stop plate 101 clamp the five stacked silicon steel sheets 2. Since the upper and lower ends of the silicon steel sheets 2 are provided with a first slot 201 and a second slot 202, the five silicon steel sheets 2 are bound together in the corresponding first slot 201 and second slot 202 by a first binding strap 3. The left and right ends of the silicon steel sheets 2 are provided with a third slot 203, and the corresponding third slot 203 between each group is bound together by a second binding strap 4.

[0024] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A five-layer stacked structure for a transformer core, characterized in that, It includes a triangular fixing seat (1), silicon steel sheet (2), first binding strap (3), second binding strap (4), rotating head (5), pressure plate (6), connecting plate (7), moving cylinder (8) and screw rod (9). Five silicon steel sheets (2) are stacked together as a group. The five silicon steel sheets (2) are connected by the first binding strap (3). Each group is connected by the second binding strap (4). Triangular fixing seats (1) are provided on both the upper and lower sides of the silicon steel sheet (2). The silicon steel sheet (2) is pressed and fixed by the pressure plate (6). The connecting plate (7) is installed between the pressure plate (6) and the moving cylinder (8). The moving cylinder (8) is installed on the screw rod (9). The screw rod (9) is connected to the rotating head (5).

2. The transformer core five-layer stacked structure according to claim 1, characterized in that, The silicon steel sheet (2) has a first groove (201) and a second groove (202) at both the upper and lower ends. A first strap (3) is installed on the first groove (201) and the second groove (202). A third groove (203) is provided at both the left and right ends of the silicon steel sheet (2). A second strap (4) is installed on the third groove (203).

3. The transformer core five-layer stacked structure according to claim 2, characterized in that, A backing plate (101) is installed on the upper outer wall of the triangular fixing seat (1), and a silicon steel sheet (2) is stacked between the backing plate (101) and the pressing plate (6).

4. The transformer core five-layer stacked structure according to claim 3, characterized in that, The triangular fixing seat (1) has a shaft hole (105) at its center. Three rail plates (102) are installed on the upper side of the triangular fixing seat (1). The rail plates (102) have a moving groove (103) inside, and a limiting groove (104) is provided on the moving groove (103).

5. A five-layer stacked structure for a transformer core according to claim 4, characterized in that, A movable block (602) is installed in the movable groove (103). A pressing plate (6) is installed on the upper side of the movable block (602). Limiting plates (603) are installed on both sides of the movable block (602). The limiting plates (603) can move within the limiting groove (104).

6. The transformer core five-layer stacked structure according to claim 5, characterized in that, The first side plate (601) is installed on the rear side wall of the clamping plate (6). The first side plate (601) and the connecting plate (7) are connected by a shaft (10). The other end of the connecting plate (7) is connected to the second side plate (801) by a shaft (10).

7. A transformer core five-layer stacked structure according to claim 6, characterized in that, The second side plate (801) is installed on the outer wall of the movable cylinder (8).

8. A five-layer stacked structure for a transformer core according to claim 7, characterized in that, The lead screw (9) is connected to the pivot (901) and the knob (5).

Citation Information

Patent Citations

  • Five-splicing structure of transformer iron core

    CN219497509U