Small transformer

Abstract

The utility model discloses a small-sized transformer which comprises a frame, magnet yoke pieces, coil pieces, connecting pieces, supporting frames and mounting plates, wherein the magnet yoke pieces, the coil pieces, the connecting pieces, the supporting frames and the mounting plates are arranged in a stacked mode. The L-shaped frame is matched with the bolt and the nut to achieve stable installation of the magnet yoke piece, the coil piece is arranged in the cavity of the magnet yoke piece, and the insulating property and the wire arrangement effect are enhanced through the insulating plate and the wire arrangement groove. And the connecting piece is clamped on the mounting plate through the groove, so that convenient mounting and firm connection are realized. A heat dissipation gap and a magnetic block are arranged between the supporting frame and the mounting plate, and the heat dissipation performance and the magnetic field effect are improved. The small transformer is compact in structure, excellent in heat dissipation, convenient and fast to install, capable of enhancing the magnetic field effect and suitable for the requirements for miniaturization, high efficiency and intelligentization of modern electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a small transformer. Background Technology

[0002] In power transmission and distribution systems, transformers, as key equipment, play a crucial role in voltage conversion and current regulation. With the trend towards miniaturization and integration in modern electronic equipment, higher demands are placed on the size, efficiency, and reliability of transformers. Traditional transformers often suffer from problems in their structural design, such as large size, poor heat dissipation, significant magnetic field interference, and inconvenient installation, making it difficult to meet the demands of modern electronic equipment for miniaturized, efficient, and intelligent transformers.

[0003] In particular, in the field of small transformers, achieving efficient magnetic field conversion and good heat dissipation within a limited space has become a pressing technical challenge. Therefore, developing a small transformer that is compact, has excellent heat dissipation, is easy to install, and can effectively enhance the magnetic field effect is of great significance for promoting the development of modern electronic equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the aforementioned problems, this invention proposes a small transformer, aiming to solve the problem of how to achieve efficient magnetic field conversion and good heat dissipation performance within a limited space.

[0006] (II) Technical Solution

[0007] This utility model discloses a small transformer, the small transformer comprising:

[0008] frame;

[0009] The magnetic yokes are stacked and arranged, with a cavity in the middle of each magnetic yoke, and the magnetic yokes are clamped in the frame by fasteners;

[0010] The coil component is disposed within the cavity;

[0011] At least two connectors are provided for connecting external cables, one end of each connector is provided with a wire, and the other end of the wire is connected to the coil component;

[0012] A support frame is disposed above the magnetic yoke. One end of the support frame is connected to the frame. A mounting plate for mounting the connector is also provided on the support frame. A magnetic block is also provided between the mounting plate and the support frame. The magnetic field direction of the magnetic block is the same as the magnetic field direction generated when the coil is energized.

[0013] The connector is fixedly mounted on the mounting plate, and a heat dissipation gap is provided between the mounting plate and the support frame.

[0014] In this utility model, the top of the support frame is provided with a slot for accommodating the mounting plate, the bottom of the mounting plate is provided with a pad, the magnetic block is interference-embedded in the slot and / or the pad, and both the support frame and the mounting plate can be attracted by the magnetic block.

[0015] In this utility model, the support frame has an L-shaped structure, and the support frame is provided with connecting holes for fixing the connecting parts.

[0016] In this invention, the connecting hole is circular or racetrack-shaped.

[0017] In this utility model, the frame is also an L-shaped structure and the frame is clamped on both sides of the magnetic yoke by bolts and nuts.

[0018] In this utility model, an insulating plate is also provided inside the cavity, and multiple cable management grooves are provided at the ends of the insulating plate, and the wires are clamped in the cable management grooves.

[0019] In this invention, the support frame is disposed above the magnetic yoke, and the bottom of the support frame does not contact the magnetic yoke.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] (1) In this utility model, a heat dissipation gap is set between the mounting plate and the support frame, which improves the heat dissipation performance of the transformer and ensures that the transformer can maintain stable performance during long-term operation.

[0023] (2) In this utility model, a magnetic block is set between the mounting plate and the support frame, and the magnetic field direction of the magnetic block is the same as the magnetic field direction generated when the coil is energized. Thus, when the coil is energized, the connection effect between the magnetic block and the support frame can be further strengthened, that is, the magnetic field generated by the coil can further strengthen the magnetic force of the magnetic block. Attached Figure Description

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1A schematic diagram of the three-dimensional structure of a transformer. Figure 1 ;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a transformer. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the connection structure between the support frame and the mounting plate;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the support frame;

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the connector Figure 1 ;

[0030] Figure 6 Schematic diagram of the three-dimensional structure of the connector Figure 2 ;

[0031] Figure 7 Schematic diagram of the assembly structure of the connectors Figure 1 ;

[0032] Figure 8 Schematic diagram of the assembly structure of the connectors Figure 2 ;

[0033] Figure 9 Schematic diagram of the three-dimensional structure of the mounting plate Figure 1 ;

[0034] Figure 10 Schematic diagram of the three-dimensional structure of the mounting plate Figure 2 .

[0035] 1. Frame, 2. Magnetic yoke, 21. Cavity, 22. Insulating board, 221. Cable management channel, 3. Coil, 31. Wire, 4. Connector, 41. Groove, 42. Protrusion, 43. Connecting part, 5. Support frame, 51. Connecting hole, 52. Slot, 521. Heat dissipation hole, 6. Mounting plate, 61. Heat dissipation gap, 62. Pad, 63. Anti-reverse groove, 7. Magnetic block. Detailed Implementation

[0036] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0037] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising,” “including,” or “having” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “connected” are not limited to the physical or mechanical connection or connection shown in the drawings, but may include equivalent connections or connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” “right,” “horizontal,” and “vertical” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0038] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Example 1

[0040] A small transformer, such as Figures 1-10 As shown, it includes a frame 1, stacked magnetic yokes 2, coils 3, five connectors 4, a support frame 5, and a mounting plate 6.

[0041] The magnetic yoke 2 has a cavity 21 in the middle, and the magnetic yoke 2 is clamped in the frame 1 by fasteners. Specifically, the frame 1 has an L-shaped structure, and is clamped on both sides of the magnetic yoke 2 by bolts and nuts to ensure that the magnetic yoke 2 is stably installed in the frame 1.

[0042] The coil element 3 is disposed within the cavity 21 and is used to conduct electricity and generate a magnetic field, producing currents of different magnitudes through different turns ratios. To enhance insulation and wire management, an insulating plate 22 is also provided within the cavity 21. Multiple wire management grooves 221 are provided at the ends of the insulating plate 22. The wires 31 are secured within the wire management grooves 221, thereby maintaining the orderly arrangement of the wires and preventing short circuits. Specifically, the wire management grooves 221 are respectively located at the front and rear ends of the insulating plate 22.

[0043] Connector 4 is used to connect external cables (not shown). One end of connector 4 is provided with a wire 31, and the other end of wire 31 is connected to coil 3 to realize the transmission of electrical signals. In order to facilitate the installation and fixation of connector 4, the bottom of connector 4 is provided with a groove 41 that mates with mounting plate 6, and connector 4 is snapped onto mounting plate 6 through groove 41.

[0044] A support frame 5 is positioned above the magnetic yoke 2, and one end of the support frame 5 is connected to the frame 1. The support frame 5 has an L-shaped structure and is provided with a connecting hole 51 for fixing the connector 4. The connecting hole 51 can be circular or elongated racetrack-shaped to accommodate connectors 4 of different shapes and sizes. Importantly, the bottom of the support frame 5 does not contact the magnetic yoke 2 to avoid affecting the magnetic field distribution of the magnetic yoke 2.

[0045] Mounting plate 6 is mounted on support frame 5 and is used to mount connector 4. A heat dissipation gap 61 is provided between mounting plate 6 and support frame 5 to improve the heat dissipation performance of transformer.

[0046] In addition, a magnetic block 7 is provided between the mounting plate 6 and the support frame 5. The magnetic field direction of the magnetic block 7 is the same as the magnetic field direction generated when the coil 3 is energized. Therefore, when the coil 3 is energized, the connection effect between the magnetic block 7 and the support frame 5 can be further strengthened. That is, the magnetic field generated by the coil 3 can further strengthen the magnetic force of the magnetic block 7.

[0047] Specifically, the magnetic block 7 can be interference-fitted into the slot 52 of the support frame 5. Similarly, the magnetic block 7 can also be interference-fitted into the pad 62 of the mounting plate 6. Multiple pads 62 can be provided, and the pads 62, the mounting plate 6, and the support frame 5 can be an integral structure, or they can be manufactured separately and then assembled together.

[0048] Specifically, multiple heat dissipation holes 521 can be provided within the slot 52 to further enhance the airflow between the heat dissipation gap 61 and the air. These heat dissipation holes 521 can be multiple linearly arranged circular holes, or they can be one or more long, curved slots.

[0049] Furthermore, to prevent the connector 4 from falling off during installation, a protrusion 42 is provided at the bottom of the groove 41, and a retaining groove 63 that mates with the protrusion 42 is provided at the bottom of the mounting plate 6. The protrusion 42 can be a long, semi-circular structure or a toothed structure formed by sequentially connecting triangles. The shape of the retaining groove 63 is the same as that of the protrusion 42 to achieve a firm locking effect.

[0050] To meet different connection requirements, a connecting part 43 can be provided between the two connectors 4 to form a connection group. The connecting part 43 is located above the mounting plate 6. This design can easily expand the number of connectors 4 and the connection methods, improving the flexibility and applicability of the transformer.

[0051] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A small transformer, characterized in that, The small transformer includes: frame; The magnetic yokes are stacked and arranged, with a cavity in the middle of each magnetic yoke, and the magnetic yokes are clamped in the frame by fasteners; The coil component is disposed within the cavity; At least two connectors are provided for connecting external cables, one end of each connector is provided with a wire, and the other end of the wire is connected to the coil component; A support frame is disposed above the magnetic yoke. One end of the support frame is connected to the frame. A mounting plate for mounting the connector is also provided on the support frame. A magnetic block is also provided between the mounting plate and the support frame. The magnetic field direction of the magnetic block is the same as the magnetic field direction generated when the coil is energized. The connector is fixedly mounted on the mounting plate, and a heat dissipation gap is provided between the mounting plate and the support frame.

2. The small transformer according to claim 1, characterized in that, The top of the support frame is provided with a slot for accommodating the mounting plate, and the bottom of the mounting plate is provided with a pad. The magnetic block is interference-embedded in the slot and / or the pad. Both the support frame and the mounting plate can be attracted by the magnetic block.

3. The small transformer according to claim 2, characterized in that, The support frame has an L-shaped structure and is provided with connecting holes for fixing the connecting parts.

4. The small transformer according to claim 3, characterized in that, The connecting hole is circular or racetrack-shaped.

5. The small transformer according to claim 4, characterized in that, The frame is also an L-shaped structure, and the frame is clamped on both sides of the magnetic yoke by bolts and nuts.

6. The small transformer according to claim 5, characterized in that, An insulating plate is also provided inside the cavity, and multiple cable management grooves are provided at the ends of the insulating plate, with the wires being clamped in the cable management grooves.

7. The small transformer according to any one of claims 1-6, characterized in that, The support frame is positioned above the magnetic yoke, and the bottom of the support frame does not contact the magnetic yoke.

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