Transformer silicon steel sheet with limiting structure

Abstract

The utility model belongs to the technical field of transformer silicon steel sheets, and particularly relates to a transformer silicon steel sheet with a limiting structure, which comprises an E-shaped silicon steel sheet, three groups of first grooves are formed in the E-shaped silicon steel sheet, three groups of first bumps are arranged on the E-shaped silicon steel sheet, an I-shaped silicon steel sheet is placed on one side of the E-shaped silicon steel sheet, and a plurality of second grooves are formed in the other side of the E-shaped silicon steel sheet. A first limiting plate is installed on the side walls of the E-shaped silicon steel sheets and the I-shaped silicon steel sheets, a first sealing plate and a second sealing plate are installed at the top end and the bottom end of the first limiting plate respectively, and a plurality of sets of partition plates are installed on the inner wall of the first limiting plate. The first protruding blocks on the E-shaped silicon steel sheets can be clamped in the first grooves of the next E-shaped silicon steel sheets, so that the E-shaped silicon steel sheets are vertically and tidily stacked, the distance between every two adjacent E-shaped silicon steel sheets is a fixed value, the E-shaped silicon steel sheets are prevented from being placed too tightly or too loosely, and the installation effect of the silicon steel sheets is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer silicon steel sheets, and specifically relates to a transformer silicon steel sheet with a limiting structure. Background Technique

[0002] Transformer silicon steel sheets are steel sheets with a silicon content of 0.8% to 4.8%, mainly used for manufacturing the iron cores of transformers. They have the characteristics of high magnetic permeability, low coercive force, and low hysteresis loss. During the manufacturing process of transformers, silicon steel sheets are required.

[0003] Transformer silicon steel sheets are usually manufactured by cold rolling process, and the thickness is generally 0.35mm. In order to reduce eddy current loss, the silicon steel sheets are usually cut into long strips and then overlapped into a "day" shape or a "square" shape. This structure not only reduces eddy current loss but also saves the material consumption of silicon steel sheets. High magnetic permeability: The magnetic permeability of silicon steel sheets is much higher than that of ordinary steel, and can provide a larger magnetic flux under the same magnetic field intensity. Low coercive force: The coercive force of silicon steel sheets is low, making the conversion of magnetic flux in the iron core easier and improving the efficiency of the transformer. Low hysteresis loss: The hysteresis loss of silicon steel sheets is low, which helps to reduce the heat loss of the transformer during operation. High resistivity: The resistivity of silicon steel sheets is large, which can reduce eddy current loss and further reduce the heating degree of the transformer.

[0004] During the installation process of the existing transformer silicon steel sheets, it is usually impossible to limit the stacked silicon steel sheets. If the silicon steel sheets are placed too tightly, it will cause the no-load current of the transformer to increase. If they are placed too loosely, the leakage inductance will increase correspondingly, and at the same time, there will be adverse phenomena such as noise, resulting in a poor installation effect of the silicon steel sheets. Therefore, in view of the above problems, a transformer silicon steel sheet with a limiting structure is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and solve the problems existing in the existing technology, the utility model proposes a transformer silicon steel sheet with a limiting structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is a transformer silicon steel sheet with a limiting structure, including an E-shaped silicon steel sheet. The E-shaped silicon steel sheet has two sets of first mounting holes, three sets of first grooves, and three sets of first protrusions. An I-shaped silicon steel sheet is placed on one side of the E-shaped silicon steel sheet. The I-shaped silicon steel sheet has two sets of second mounting holes, and bolts are installed in the first and second mounting holes. The I-shaped silicon steel sheet has three sets of second grooves and three sets of second protrusions. A first limiting plate is installed on the sidewalls of the E-shaped and I-shaped silicon steel sheets. The top of the first limiting plate... The first and second sealing plates are respectively installed at the bottom and the first limiting plate. Multiple sets of partitions are installed on the inner wall of the first limiting plate. The two ends of the partitions are placement grooves. The E-shaped silicon steel sheets and I-shaped silicon steel sheets are assembled in the placement grooves. Multiple sets of E-shaped silicon steel sheets and I-shaped silicon steel sheets are arranged. Multiple sets of E-shaped silicon steel sheets are stacked and multiple sets of I-shaped silicon steel sheets are stacked. By sequentially inserting multiple E-shaped silicon steel sheets into the placement grooves of the first limiting plate, the first protrusion on the E-shaped silicon steel sheet will be locked in the first groove of the next E-shaped silicon steel sheet, so that the E-shaped silicon steel sheets are stacked vertically and neatly, and the distance between two adjacent E-shaped silicon steel sheets is a fixed value, which avoids the E-shaped silicon steel sheets being placed too tightly or too loosely, and is beneficial to improving the installation effect of silicon steel sheets.

[0007] Preferably, two sets of plate grooves are symmetrically opened on the side wall of the first limiting plate, and two sets of snap-fit ​​components are symmetrically installed on the first limiting plate. The snap-fit ​​components include a moving groove, a moving plate is assembled in the moving groove, a spring is installed on the moving plate and the inner wall of the moving groove, and a snap-fit ​​block is installed on the moving plate. A second limiting plate is installed on the side wall of the E-shaped silicon steel sheet and the I-shaped silicon steel sheet, and two sets of snap-fit ​​plates are symmetrically installed on the second limiting plate. The snap-fit ​​plates are assembled in the plate grooves, and snap-fit ​​holes are opened on the snap-fit ​​plates. Snap-fit ​​blocks are assembled in the snap-fit ​​holes. After inserting both the E-shaped silicon steel sheet and the I-shaped silicon steel sheet into the first limiting plate, the E-shaped silicon steel sheet and the I-shaped silicon steel sheet are merged. Then, the snap-fit ​​plates on the second limiting plate are pushed into the plate grooves on the two first limiting plates. The two first limiting plates and the two second limiting plates cooperate to fix the E-shaped silicon steel sheet and the I-shaped silicon steel sheet. This structure can quickly merge and fix the E-shaped silicon steel sheet and the I-shaped silicon steel sheet, which is beneficial to improving the convenience of limiting.

[0008] The advantages of this utility model are:

[0009] 1. This utility model involves sequentially inserting multiple E-shaped silicon steel sheets into the placement groove of the first limiting plate. The first protrusion on the E-shaped silicon steel sheet will be locked in the first groove of the next E-shaped silicon steel sheet, so that the E-shaped silicon steel sheets are stacked vertically and neatly, and the distance between two adjacent E-shaped silicon steel sheets is a fixed value. This avoids the E-shaped silicon steel sheets being placed too tightly or too loosely, which is beneficial to improving the installation effect of the silicon steel sheets.

[0010] 2. This utility model, by inserting both E-shaped and I-shaped silicon steel sheets into the first limiting plate, merges the E-shaped and I-shaped silicon steel sheets, and then pushes the clamping plate on the second limiting plate into the plate grooves on the two first limiting plates. The two first limiting plates and the two second limiting plates cooperate to fix the E-shaped and I-shaped silicon steel sheets. This structure can quickly merge and fix the E-shaped and I-shaped silicon steel sheets, which is beneficial to improving the convenience of limiting. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 A schematic diagram of the three-dimensional cross-section of an E-shaped silicon steel sheet;

[0014] Figure 3 A schematic diagram of the three-dimensional structure of an I-shaped silicon steel sheet cross-section;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the first limiting plate;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the card block.

[0017] In the diagram: 1. E-shaped silicon steel sheet; 2. First mounting hole; 3. First groove; 4. First protrusion; 5. I-shaped silicon steel sheet; 6. Second mounting hole; 7. Second groove; 8. Second protrusion; 9. First limiting plate; 10. First sealing plate; 11. Second sealing plate; 12. Partition plate; 13. Placement groove; 14. Plate groove; 15. Moving groove; 16. Moving plate; 17. Spring; 18. Locking block; 19. Second limiting plate; 20. Locking plate; 21. Locking hole; 22. Bolt. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-4 As shown, a transformer silicon steel sheet with a limiting structure includes an E-shaped silicon steel sheet 1. The E-shaped silicon steel sheet 1 has two sets of first mounting holes 2, three sets of first grooves 3, and three sets of first protrusions 4. An I-shaped silicon steel sheet 5 is placed on one side of the E-shaped silicon steel sheet 1. The I-shaped silicon steel sheet 5 has two sets of second mounting holes 6. Bolts 22 are installed in the first mounting holes 2 and the second mounting holes 6. Three sets of second grooves 7 are provided on the silicon steel sheet 5, and three sets of second protrusions 8 are provided on the I-shaped silicon steel sheet 5. A first limiting plate 9 is installed on the side wall of the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5. A first sealing plate 10 and a second sealing plate 11 are respectively installed at the top and bottom of the first limiting plate 9. Multiple sets of partitions 12 are installed on the inner wall of the first limiting plate 9. The two ends of the partitions 12 are placement grooves 13. The E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5 are assembled in the placement grooves 13. Multiple sets of E-shaped silicon steel sheets 1 and I-shaped silicon steel sheets 5 are arranged, with multiple sets of E-shaped silicon steel sheets 1 and multiple sets of I-shaped silicon steel sheets 5 stacked together. During operation, existing transformer silicon steel sheets are usually unable to limit the stacked silicon steel sheets during installation. If the silicon steel sheets are placed too tightly, the transformer no-load current will increase, and if they are too loose, the leakage inductance will increase accordingly. At the same time, noise and other adverse phenomena will occur, resulting in poor installation effect of silicon steel sheets. By sequentially inserting multiple E-shaped silicon steel sheets 1 into the placement groove 13 of the first limiting plate 9, and simultaneously inserting I-shaped silicon steel sheets 5 into the placement groove 13 of another first limiting plate 9, the first protrusion 4 on the E-shaped silicon steel sheet 1 will be locked in the first groove 3 of the next E-shaped silicon steel sheet 1, so that the E-shaped silicon steel sheets 1 are stacked vertically and neatly, and the distance between two adjacent E-shaped silicon steel sheets 1 is a fixed value, avoiding the E-shaped silicon steel sheets 1 being placed too tightly or too loosely, which is conducive to improving the installation effect of silicon steel sheets.

[0020] Please see Figure 5As shown, two sets of plate grooves 14 are symmetrically opened on the side wall of the first limiting plate 9. Two sets of snap-fit ​​components are symmetrically installed on the first limiting plate 9. The snap-fit ​​components include a moving groove 15, a moving plate 16 is assembled in the moving groove 15, a spring 17 is installed on the inner wall of the moving plate 16 and the moving groove 15, and a locking block 18 is installed on the moving plate 16. A second limiting plate 19 is installed on the side wall of the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5. Two sets of snap-fit ​​components are symmetrically installed on the second limiting plate 19. A clamping plate 20 is assembled in a plate groove 14. The clamping plate 20 has clamping holes 21, and clamping blocks 18 are installed in the clamping holes 21. During operation, existing transformer silicon steel sheets cannot be easily limited during installation, resulting in poor limiting convenience. By inserting both E-shaped silicon steel sheet 1 and I-shaped silicon steel sheet 5 onto the first limiting plate 9, merging the E-shaped silicon steel sheet 1 and I-shaped silicon steel sheet 5, and then attaching the second limiting plate 19... The card plate 20 is pushed into the slots 14 on the two first limiting plates 9. During this process, the card block 18 is first pressed into the moving slot 15, and the card plate 20 can move stably in the slot 14. When the card hole 21 on the card plate 20 moves to the card block 18, under the pushing force of the spring 17, the spring 17 pushes the moving plate 16 to move horizontally, and the moving plate 16 pushes the card block 18 to move horizontally. The card block 18 is locked in the card hole 21, thus fixing the card plate 20 in the slot 14. The two card plates 20 are simultaneously fixed in the slots 14 of the two first limiting plates 9, thus achieving the fixed installation of the second limiting plate 19. The two second limiting plates 19 fix the two first limiting plates 9. At this time, the two first limiting plates 9 and the two second limiting plates 19 cooperate to fix the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5. This structure can quickly merge and fix the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5, which is beneficial to improving the convenience of limiting.

[0021] Working principle: In existing transformer silicon steel sheet installation processes, it's often impossible to limit the stacked silicon steel sheets. Placing the sheets too tightly increases the transformer's no-load current, while placing them too loosely increases leakage inductance and generates noise, resulting in poor installation. By sequentially inserting multiple E-shaped silicon steel sheets 1 into the placement slots 13 of the first limiting plate 9, and simultaneously inserting I-shaped silicon steel sheets 5 into the placement slots 13 of another first limiting plate 9, the first protrusion 4 on the E-shaped silicon steel sheet 1 will engage with the first groove 3 of the next E-shaped silicon steel sheet 1. This ensures the E-shaped silicon steel sheets 1 are stacked vertically and neatly, with a fixed distance between adjacent E-shaped silicon steel sheets 1, preventing them from being placed too tightly or too loosely, thus improving the installation effect. Furthermore, existing transformer silicon steel sheet installation processes lack convenient limiting of multiple silicon steel sheets, resulting in poor limiting convenience. By inserting both E-shaped and I-shaped silicon steel sheets 5 into the first limiting plate 9... After the plate 9 is in place, the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5 are combined. Then, the locking plate 20 on the second limiting plate 19 is pushed into the plate groove 14 on the two first limiting plates 9. During this process, the locking block 18 is first pressed into the moving groove 15, and the locking plate 20 can move stably in the plate groove 14. When the locking hole 21 on the locking plate 20 moves to the locking block 18, under the pushing force of the spring 17, the spring 17 pushes the moving plate 16 to move horizontally, and the moving plate 16 pushes the locking block 18 to move horizontally. The locking block 18 is locked in the locking hole. Within 21, the card plate 20 is fixed in the plate groove 14, and the two card plates 20 are simultaneously fixed in the plate groove 14 of the two first limiting plates 9, thus realizing the fixed installation of the second limiting plate 19. The two second limiting plates 19 fix the two first limiting plates 9. At this time, the two first limiting plates 9 and the two second limiting plates 19 cooperate to fix the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5. This structure can quickly merge and fix the E-shaped silicon steel sheet 1 and the I-shaped silicon steel sheet 5, which is beneficial to improving the convenience of limiting.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A transformer silicon steel sheet with a limiting structure, characterized in that: The system includes an E-shaped silicon steel sheet (1), on which two sets of first mounting holes (2) are provided, three sets of first grooves (3) are provided, and three sets of first protrusions (4) are provided. An I-shaped silicon steel sheet (5) is placed on one side of the E-shaped silicon steel sheet (1), on which two sets of second mounting holes (6) are provided. Bolts (22) are installed in the first mounting holes (2) and the second mounting holes (6). The I-shaped silicon steel sheet (5) has openings... There are three sets of second grooves (7), and three sets of second protrusions (8) are provided on the I-shaped silicon steel sheet (5). A first limiting plate (9) is installed on the side wall of the E-shaped silicon steel sheet (1) and the I-shaped silicon steel sheet (5). A first sealing plate (10) and a second sealing plate (11) are respectively installed at the top and bottom of the first limiting plate (9). Multiple sets of partitions (12) are installed on the inner wall of the first limiting plate (9). The two ends of the partitions (12) are placement grooves (13). The E-shaped silicon steel sheet (1) and the I-shaped silicon steel sheet (5) are assembled in the placement grooves (13).

2. The transformer silicon steel sheet with a limiting structure according to claim 1, characterized in that: The E-shaped silicon steel sheet (1) and the I-shaped silicon steel sheet (5) are provided in multiple sets, with multiple sets of E-shaped silicon steel sheets (1) stacked and multiple sets of I-shaped silicon steel sheets (5) stacked.

3. The transformer silicon steel sheet with a limiting structure according to claim 1, characterized in that: Two sets of plate grooves (14) are symmetrically opened on the side wall of the first limiting plate (9), and two sets of snap-fit ​​components are symmetrically installed on the first limiting plate (9).

4. The transformer silicon steel sheet with a limiting structure according to claim 1, characterized in that: The snap-fit ​​assembly includes a movable slot (15), in which a movable plate (16) is assembled, and springs (17) are installed on the inner walls of the movable plate (16) and the movable slot (15), and a snap-fit ​​block (18) is installed on the movable plate (16).

5. A transformer silicon steel sheet with a limiting structure according to claim 1, characterized in that: The E-shaped silicon steel sheet (1) and the I-shaped silicon steel sheet (5) are equipped with a second limiting plate (19), and two sets of clamping plates (20) are symmetrically installed on the second limiting plate (19).

6. A transformer silicon steel sheet with a limiting structure according to claim 5, characterized in that: The card plate (20) is assembled in the plate groove (14), and the card plate (20) is provided with a card hole (21). The card slot (21) is fitted with a card block (18).

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