Transformer iron core and transformer thereof

Abstract

The utility model discloses a transformer iron core which relates to the technical field of transformers and comprises a plurality of silicon steel sheets, four connecting seats and coils, the four connecting seats are located at the upper ends and the lower ends of the two groups of silicon steel sheets and are connected through first connecting frames, and openings are formed in the sides, facing the silicon steel sheets, of the connecting seats. The interior of the connecting base is narrowed upwards from the opening, the inner walls of the front side and the rear side of the connecting base are inclined walls, the edges of the front side and the rear side of the stacked silicon steel sheets are connected with the inclined walls in a sliding mode, the connecting base is fixedly provided with an outward extending frame, threaded sleeves are arranged on the extending frame, a threaded rod is arranged on the two threaded sleeves in a penetrating mode, and threads are arranged on the upper section and the lower section of the threaded rod. The two sections of threads extend in opposite directions and are in threaded connection with the threaded sleeve. The transformer is simple in structure, stable in structure, convenient to assemble, high in practicability and suitable for popularization, the iron core is formed by assembling the silicon steel sheets and the connecting seats, and the transmission power of the transformer is changed by changing the number of the stacked silicon steel sheets.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and particularly relates to a transformer core and a transformer thereof. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are the primary coil, the secondary coil, and the iron core (magnetic core). The iron core is the main magnetic path part in the transformer. It is usually stacked by hot-rolled or cold-rolled silicon steel sheets with a relatively high silicon content and an insulating paint coated on the surface. The size of the power transmitted by the power transformer depends on the material and cross-sectional area of the iron core.

[0003] Most of the existing transformer cores are of an integral structure, and their transmission power cannot be adjusted according to the specific voltage transformation during operation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a transformer core and a transformer thereof, which have a simple structure. The iron core is assembled by silicon steel sheets and connecting seats, and the transmission power of the transformer is changed by changing the number of stacked silicon steel sheets. The structure is stable and convenient for assembly, with strong practicability and suitable for popularization.

[0005] The utility model provides the following technical solution: A transformer core includes silicon steel sheets, connecting seats, and coils. The silicon steel sheets and the connecting seats form the iron core. There are multiple silicon steel sheets, and there are four connecting seats located at the upper and lower ends of two groups of silicon steel sheets. The two connecting seats at the same end are connected by a first connecting frame. An opening is provided on the side of the connecting seat facing the silicon steel sheet, and the inside of the connecting seat narrows upward from the opening. The inner walls on the front and back sides of the connecting seat are inclined walls, and the front and back edges of the stacked silicon steel sheets are slidably connected to the inclined walls. The two connecting seats on the same side are fixedly provided with outward extending frames, and threaded sleeves are fixedly provided on the extending frames. A screw rod passes through the two threaded sleeves. A knob is fixedly provided at the upper end of the screw rod. The upper and lower sections of the screw rod are provided with threads, and the extending directions of the two threads are opposite. The threads are threadedly connected to the threaded sleeves.

[0006] Preferably, the connecting seat is provided with a slide rail that penetrates the inclined walls on the front and back sides. A pressing frame that penetrates is provided on the slide rail. The two sides of the pressing frame are in contact with the slide rail. The left and right pressing frames are fixedly connected by a second connecting frame. A support spring is fixedly provided between the first connecting frame and the second connecting frame through an insulating pad.

[0007] Preferably, a stabilizing plate is fixedly provided at the top end of the extending frame. The middle of the stabilizing plate is disconnected, and clamping grooves and sliding plates are provided at the two break points. The sliding plates are inserted into the clamping grooves and are slidably connected thereto.

[0008] Preferably, the coil is wound around the outer wall of the stacked silicon steel sheets, and the coil is connected to an external circuit.

[0009] The present utility model also proposes a transformer, which adopts the transformer core described above.

[0010] Advantages of the present utility model: simple structure, the iron core is assembled by silicon steel sheets and connecting seats, the transmission power of the transformer is changed by changing the number of stacked silicon steel sheets, the structure is stable and convenient for assembly, and the practicability is strong. Specifically as follows:

[0011] (1), The present utility model is provided with a connecting seat. When assembling the iron core, the number of silicon steel sheets to be stacked is selected according to specific requirements. The two ends of the two groups of stacked silicon steel sheets are sleeved with connecting seats. When the knob is rotated to make the screw rotate, since the thread extension directions of the upper and lower sections of the screw are opposite, the lower connecting seat rises and the upper connecting seat descends. After the inclined walls in the connecting seat contact the front and rear edges of the stacked silicon steel sheets, tighten the knob, and the two groups of silicon steel sheets can be fixed to form an iron core.

[0012] (2), The present utility model is provided with a pressing frame. When the connecting seat is buckled on the two ends of the two groups of stacked silicon steel sheets, through the downward pressure of the supporting spring, the pressing frame presses on the silicon steel sheets, so that the stacked silicon steel sheets are kept in a row. When the upper and lower connecting seats rise and fall, the sliding plates on the stabilizing plates on the sides thereof slide in the clamping grooves, so that the connecting seats will not deflect, thereby ensuring the structural stability. When more coils need to be wound, the number of stacked silicon steel sheets is more, so as to ensure the transmission power. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is the overall schematic diagram of the present utility model;

[0015] Figure 2 is the cross-sectional view of the present utility model;

[0016] Figure 3 is the cross-sectional view at position A of the present utility model;

[0017] The labels in the figure are: 1, silicon steel sheet; 2, connecting seat; 3, coil; 4, first connecting frame; 5, pressing frame; 6, second connecting frame; 7, slide rail; 8, screw; 9, thread; 10, knob; 11, thread sleeve; 12, stabilizing plate; 13, sliding plate; 14, inclined wall; 15, supporting spring; 16, extension frame. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] Now, in combination with the accompanying drawings of the specification, the structural features of the present utility model will be described in detail.

[0022] See Figures 1 - 3 , a transformer core includes silicon steel sheets 1, connection seats 2, and coils 3. The silicon steel sheets 1 and the connection seats 2 form the core. There are multiple silicon steel sheets 1, and there are four connection seats 2 located at the upper and lower ends of two groups of silicon steel sheets 1. The two connection seats 2 at the same end are connected by a first connection frame 4. The connection seat 2 is provided with an opening on the side facing the silicon steel sheets 1, and the inside of the connection seat 2 narrows upward from the opening. The inner walls on the front and rear sides of the connection seat 2 are inclined walls 14. The front and rear edges of the stacked silicon steel sheets 1 are slidably connected to the inclined walls 14. After the two ends of the two stacked silicon steel sheets 1 are sleeved with the connection seats 2, when the inclined walls 14 in the connection seats 2 come into contact with the front and rear edges of the stacked silicon steel sheets 1, the stacked silicon steel sheets 1 are tightly pressed, thus forming the core. The coil 3 is wound around the outer wall of the stacked silicon steel sheets 1, and the coil 3 is connected to an external circuit. When more coils 3 need to be wound, the number of stacked silicon steel sheets 1 is more.

[0023] See Figures 1 - 2, on the same side, two connecting seats 2 are fixedly provided with outward extending frames 16. A threaded sleeve 11 is fixedly provided on the extending frame 16. A screw rod 8 penetrates through the two threaded sleeves 11. The upper end of the screw rod 8 is fixedly provided with a knob 10. By rotating the knob 10, the screw rod 8 is rotated. The upper and lower sections of the screw rod 8 are provided with threads 9, and the extending directions of the two threads 9 are opposite. When the screw rod 8 rotates, the extending frames 16 move relatively closer or farther away. The threads 9 are threadedly connected to the threaded sleeves 11. The top of the extending frame 16 is fixedly provided with a stabilizing plate 12. The middle of the stabilizing plate 12 is disconnected. Clamping grooves and sliding plates 13 are provided at the two break openings. The sliding plates 13 are inserted into the clamping grooves and are slidably connected thereto, preventing the connecting seats 2 from deflecting.

[0024] See Figures 2 - 3 , the connecting seat 2 is provided with a slide rail 7 that penetrates the inclined walls 14 on the front and rear sides. A pressing frame 5 that penetrates is provided on the slide rail 7. The two sides of the pressing frame 5 are in contact with the slide rail 7, enabling the pressing frame 5 to move up and down along the slide rail 7. The pressing frames 5 on the left and right sides are fixedly connected by a second connecting frame 6. A support spring 15 is fixedly provided between the first connecting frame 4 and the second connecting frame 6 through an insulating pad. By the downward pressure of the support spring 15, the pressing frame 5 presses against the silicon steel sheet 1, keeping the stacked silicon steel sheets 1 in a row at a higher level.

[0025] This embodiment also provides a transformer that uses the above-mentioned transformer core.

[0026] The transformer core and transformer of the present utility model have a simple structure. The core is assembled by silicon steel sheets and connecting seats. The transmission power of the transformer is changed by changing the number of stacked silicon steel sheets. The structure is stable and convenient for assembly, with strong practicability and is suitable for popularization.

[0027] Specifically in use, referring to Figures 1 - 3 , when assembling the core, according to specific requirements, select the number of silicon steel sheets 1 to be stacked. Put the connecting seats 2 on both ends of the two groups of stacked silicon steel sheets 1. When the connecting seats 2 are buckled on both ends of the two groups of stacked silicon steel sheets 1, by the downward pressure of the support spring 15, the pressing frame 5 presses against the silicon steel sheet 1, keeping the stacked silicon steel sheets 1 in a row at a higher level. When rotating the knob 10 to rotate the screw rod 8, since the extending directions of the upper and lower threads 9 of the screw rod 8 are opposite, the lower connecting seat 2 rises and the upper connecting seat 2 descends. When the upper and lower connecting seats 2 move up and down, the sliding plates 13 on the stabilizing plates 12 on their sides slide in the clamping grooves, preventing the connecting seats 2 from deflecting. After the inclined walls 14 in the connecting seats 2 contact the front and rear edges of the stacked silicon steel sheets 1, tighten the knob 10, and the two groups of silicon steel sheets 1 can be fixed to form the core. The more coils 3 to be wound, the more the number of stacked silicon steel sheets 1.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A transformer core, comprising silicon steel sheets (1), a connection base (2), and a coil (3), characterized in that, The silicon steel sheets (1) and the connecting seats (2) form an iron core. There are multiple silicon steel sheets (1), and there are four connecting seats (2) located at the upper and lower ends of two groups of silicon steel sheets (1). Two of the connecting seats (2) located at the same end are connected by a first connecting frame (4). The connecting seat (2) is provided with an opening on the side facing the silicon steel sheet (1). The inside of the connecting seat (2) narrows upward from the opening. The inner walls on the front and rear sides of the connecting seat (2) are inclined walls (14). The front and rear edges of the stacked silicon steel sheets (1) are slidably connected to the inclined walls (14). Two of the connecting seats (2) on the same side are fixedly provided with outward extending frames (16). Threaded sleeves (11) are fixedly provided on the extending frames (16). A screw rod (8) passes through the two threaded sleeves (11). A knob (10) is fixedly provided at the upper end of the screw rod (8). The upper and lower sections of the screw rod (8) are provided with threads (9). The extending directions of the two threads (9) are opposite. The threads (9) are threadedly connected to the threaded sleeves (11).

2. A transformer core according to claim 1, characterized in that, The connecting seat (2) is provided with a slide rail (7) penetrating the inclined walls (14) on the front and rear sides. A pressing frame (5) is provided on the slide rail (7). The two sides of the pressing frame (5) are in contact with the slide rail (7). The left and right pressing frames (5) are fixedly connected by a second connecting frame (6). A support spring (15) is fixedly provided between the first connecting frame (4) and the second connecting frame (6) through an insulating pad.

3. A transformer core according to claim 1, characterized in that, A stabilizing plate (12) is fixedly provided at the top of the extending frame (16). The middle of the stabilizing plate (12) is disconnected. Clamping grooves and sliding plates (13) are provided at the two break points. The sliding plates (13) are inserted into the clamping grooves and are slidably connected thereto.

4. A transformer core according to claim 1, characterized in that, The coil (3) is wound around the outer wall of the stacked silicon steel sheets (1). The coil (3) is connected to an external circuit.

5. A transformer, characterized in that, Use the transformer iron core according to any one of claims 1-4.

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