A compact high-frequency electronic transformer with high electrical strength

Abstract

This utility model belongs to the field of electronic transformer technology, specifically relating to a compact high-frequency electronic transformer with high dielectric strength. It includes a mounting frame with pins mounted near both ends on the bottom surface of the frame. A partition is provided on the upper side of the mounting frame, and a winding frame is fixedly connected to the upper and lower sidewalls of the partition. The winding frame is fixedly connected to the mounting frame and has a hollow structure. A primary coil is mounted inside the winding frame on the upper side of the partition, and a secondary coil is mounted inside the winding frame on the lower side of the partition. An upper magnetic core is mounted on the upper side of the winding frame, and a lower magnetic core is mounted inside the winding frame on the lower side of the mounting frame. A dielectric protection cover is mounted on the outer side of the winding frame between the upper and lower magnetic cores. The bottom and left sidewall of the dielectric protection cover are open. This utility model eliminates the need for insulating tape, can withstand high voltage and arc damage, and significantly reduces the transformer size.

Description

Technical Field

[0001] This utility model belongs to the field of electronic transformer technology, specifically relating to a compact high-frequency electronic transformer with high dielectric strength. Background Technology

[0002] An electronic transformer is an electronic device used for electrical energy conversion. It primarily converts alternating current (AC) of one voltage and current level to another, and has wide applications in electronic equipment and power systems. As the market demands smaller and lighter power supplies, power supply designers are requiring the miniaturization of the largest component within the power supply: the electronic transformer. Simultaneously, power supply safety requirements are increasing, necessitating higher dielectric strength and resistance to high-voltage arc damage while miniaturizing the electronic transformer.

[0003] The current technical solution involves winding the primary and secondary coils separately on different frames, and then combining the two frames. The structural design ensures a sufficient safe distance between the primary and secondary coils. However, this results in a large product size, complex structure, and high cost. In addition, the winding process requires two separate winding operations. Furthermore, the product requires protection against arcing between the coil and the magnetic core. The current practice is to wrap a layer of tape between the coil and the magnetic core for insulation, which not only increases the complexity of the process but also affects the regularity of the coil distribution. Utility Model Content

[0004] The purpose of this invention is to provide a compact high-frequency electronic transformer with high dielectric strength, which can withstand high voltage and arc damage without the need for insulating tape, while significantly reducing the transformer size.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A compact high-frequency electronic transformer with high dielectric strength includes a mounting frame. Pins are mounted on the bottom surface of the mounting frame near both ends. A partition is provided on the upper side of the mounting frame. A winding frame is fixedly connected to the upper and lower sidewalls of the partition. The winding frame is fixedly connected to the mounting frame and has a hollow structure. A primary coil is mounted inside the winding frame on the upper side of the partition, and a secondary coil is mounted inside the winding frame on the lower side of the partition. An upper magnetic core is mounted on the upper side of the winding frame, and a lower magnetic core is mounted inside the winding frame on the lower side of the mounting frame. A dielectric protection cover is mounted on the outer side of the winding frame between the upper and lower magnetic cores. The bottom and left sidewall of the dielectric protection cover are open.

[0007] The side wall of the anti-electric protection cover is equipped with two limiting plates, which are L-shaped structures, and the side wall of the limiting plates is provided with limiting and fixing components.

[0008] The limiting and fixing assembly includes a slider fixedly connected to the side wall of the limiting plate. The side wall of the anti-electric protection cover has a groove corresponding to the slider. The groove extends from the top surface of the anti-electric protection cover to the front and rear side walls. A connecting plate is fixedly connected to the side wall of the limiting plate. A bolt is threadedly connected to the side wall of the connecting plate. The bolt is threadedly connected to the anti-electric protection cover.

[0009] The slide groove on the top surface of the anti-electric protection cover has a rectangular cross-section, and the slide groove on the front and rear side walls of the anti-electric protection cover has a trapezoidal cross-section. The slider is adapted to the slide groove.

[0010] The top surface of the anti-electric protective cover has a groove that is adapted to the upper magnetic core.

[0011] A positioning plate is fixedly connected to the lower side wall of the winding skeleton. The space between the positioning plate and the partition is the positioning gap. Two insert plates are fixedly connected to the inner side wall of the anti-electric protection cover. The insert plates are adapted to the positioning gap.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This invention discloses a compact high-frequency electronic transformer with high dielectric strength that can withstand high voltage and arc damage without the need for insulating tape, while significantly reducing the transformer's size.

[0014] This utility model discloses a compact high-frequency electronic transformer with high dielectric strength. By winding the primary and secondary coils on the same winding frame and using a dielectric protective cover, it achieves high dielectric strength without the need for tape, thus meeting the dielectric requirements of international standards. Attached Figure Description

[0015] Figure 1 This is an overall perspective view of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the anti-electric protection cover in the removed state according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the winding skeleton according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the anti-electric protective cover according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the disassembled structure of the limiting plate in an embodiment of this utility model;

[0021] Figure 7This is a bottom view of the anti-electric protection cover according to an embodiment of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Mounting bracket; 2. Pin; 3. Partition; 4. Primary coil; 5. Secondary coil; 6. Upper magnetic core; 7. Lower magnetic core; 8. Electrostatic protection cover; 9. Limiting plate; 10. Winding frame; 11. Positioning plate; 12. Insert plate; 13. Bolt; 14. Slider; 15. Slide groove; 16. Groove. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-7 As shown, a compact high-frequency electronic transformer with high dielectric strength includes a mounting frame 1. Pins 2 are mounted on the bottom surface of the mounting frame 1 near both ends. A partition 3 is provided on the upper side of the mounting frame 1. A winding frame 10 is fixedly connected to the upper and lower side walls of the partition 3. The winding frame 10 is fixedly connected to the mounting frame 1. The winding frame 10 has a hollow structure. A primary coil 4 is mounted inside the winding frame 10 on the upper side of the partition 3, and a secondary coil 5 is mounted inside the winding frame 10 on the lower side of the partition 3. An upper magnetic core 6 is mounted on the upper side of the winding frame 10, and a lower magnetic core 7 is mounted inside the winding frame 10 on the lower side of the mounting frame 1. An dielectric protection cover 8 is mounted on the outer side of the winding frame 10 between the upper magnetic core 6 and the lower magnetic core 7. The bottom and left side wall of the dielectric protection cover 8 are open.

[0026] like Figure 5 and Figure 6 As shown, the side wall of the anti-electric protection cover 8 is equipped with two limiting plates 9. The limiting plates 9 have an L-shaped structure and the side wall of the limiting plates 9 is provided with limiting and fixing components. The limiting plates 9 are respectively attached to the anti-electric protection cover 8 to limit and fix the anti-electric protection cover 8.

[0027] like Figure 6 and Figure 7 As shown, the limiting and fixing assembly includes a slider 14 fixedly connected to the side wall of the limiting plate 9. The side wall of the anti-electric protection cover 8 is provided with a groove 15 corresponding to the slider 14. The groove 15 extends from the top surface of the anti-electric protection cover 8 to the front and rear side wall positions. A connecting plate is fixedly connected to the side wall of the limiting plate 9. A bolt 13 is threadedly connected to the side wall of the connecting plate. The bolt 13 is threadedly connected to the anti-electric protection cover 8.

[0028] The slide groove 15 located on the top surface of the anti-electric protection cover 8 has a rectangular cross section, and the slide groove 15 located on the front and rear side walls of the anti-electric protection cover 8 has a trapezoidal cross section. The slider 14 is adapted to the slide groove 15.

[0029] Specifically, after the primary coil 4 and the secondary coil 5 are wound on the winding frame 10, the anti-electric protection cover 8 is inserted into the positioning gap through the insert plate 12. After the anti-electric protection cover 8 is attached to the right side of the winding frame 10, the assembly is completed. Then, the upper magnetic core 6 and the lower magnetic core 7 are inserted into the hollow structure of the winding frame 10 from the upper side of the anti-electric protection cover 8 and the lower side of the mounting bracket 1, respectively. Next, the limiting plate 9 is inserted into the slide groove 15 through the slider 14 and locked using the trapezoidal surface of the slide groove 15. After the limiting plate 9 is completely attached to the anti-electric protection cover 8, the bolt 13 is tightened to fix the limiting plate 9. At this time, the limiting plate 9 is attached to the end face of the upper magnetic core 6 and the lower magnetic core 7.

[0030] like Figure 2 and Figure 5 As shown, the top surface of the anti-electric protective cover 8 has a groove 16, which is adapted to the upper magnetic core 6. This facilitates the fixing of the upper magnetic core 6 and the lower magnetic core 7, achieving efficient assembly.

[0031] like Figure 4 and Figure 5 As shown, a positioning plate 11 is fixedly connected to the side wall of the lower winding frame 10. The space between the positioning plate 11 and the partition plate 3 is the positioning gap. Two insert plates 12 are fixedly connected to the inner side wall of the anti-electric protection cover 8, and the insert plates 12 are adapted to the positioning gap. On the one hand, this can be used to position and insert the anti-electric protection cover 8, making its assembly more accurate, while avoiding damage to the primary coil 4 and the secondary coil 5. On the other hand, the structural design of the anti-electric protection cover 8 can effectively isolate the arcing effect of the primary coil 4 and the secondary coil 5.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A compact high-frequency electronic transformer with high electrical strength, characterized in that: The device includes a mounting frame (1), on which pins (2) are mounted near both ends on the bottom surface. A partition (3) is provided on the upper side of the mounting frame (1). A winding frame (10) is fixedly connected to the upper and lower side walls of the partition (3). The winding frame (10) is fixedly connected to the mounting frame (1). The winding frame (10) is a hollow structure. A primary coil (4) is mounted inside the winding frame (10) on the upper side of the partition (3). A secondary coil (5) is mounted inside the winding frame (10) on the lower side of the partition (3). An upper magnetic core (6) is mounted on the upper side of the winding frame (10). A lower magnetic core (7) is mounted inside the winding frame (10) on the lower side of the mounting frame (1). An anti-electric protection cover (8) is mounted on the outer side of the winding frame (10) between the upper magnetic core (6) and the lower magnetic core (7). The bottom and left side wall of the anti-electric protection cover (8) are open.

2. The compact high-frequency electronic transformer with high dielectric strength according to claim 1, characterized in that: The side wall of the anti-electric protective cover (8) is equipped with two limiting plates (9), the limiting plates (9) are L-shaped, and the side wall of the limiting plates (9) is provided with a limiting fixing component.

3. A compact high-frequency electronic transformer with high dielectric strength according to claim 2, characterized in that: The limiting and fixing assembly includes a slider (14) fixedly connected to the side wall of the limiting plate (9). The side wall of the anti-electric protection cover (8) is provided with a groove (15) corresponding to the slider (14). The groove (15) extends from the top surface of the anti-electric protection cover (8) to the front and rear side walls. A connecting plate is fixedly connected to the side wall of the limiting plate (9). A bolt (13) is threadedly connected to the side wall of the connecting plate. The bolt (13) is threadedly connected to the anti-electric protection cover (8).

4. A compact high-frequency electronic transformer with high dielectric strength according to claim 3, characterized in that: The slide groove (15) on the top surface of the anti-electric protection cover (8) has a rectangular cross section, and the slide groove (15) on the front and rear side walls of the anti-electric protection cover (8) has a trapezoidal cross section. The slider (14) is adapted to the slide groove (15).

5. A compact high-frequency electronic transformer with high dielectric strength according to claim 1, characterized in that: The top surface of the anti-electric protective cover (8) is provided with a groove (16), which is adapted to the upper magnetic core (6).

6. A compact high-frequency electronic transformer with high dielectric strength according to claim 1, characterized in that: A positioning plate (11) is fixedly connected to the side wall of the lower winding skeleton (10). The space between the positioning plate (11) and the partition (3) is the positioning gap. Two insert plates (12) are fixedly connected to the inner side wall of the anti-electric protection cover (8). The insert plates (12) are adapted to the positioning gap.

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