Anti-electromagnetic interference high-power high-frequency transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to an anti-electromagnetic interference high-power high-frequency transformer which comprises a winding framework, an external wire, pins and iron cores, the surface of the winding framework is connected with the external wire, the bottom side of the winding framework is connected with the pins, and the iron cores comprise the first iron core and the second iron core. The first iron core is inserted into the winding framework, and the second iron core is inserted into the winding framework; the bottom side of the first iron core is connected with a positioning block, and the upper surface of the second iron core close to the positioning block is provided with a positioning groove. According to the high-frequency transformer, when the high-frequency transformer needs to be maintained, the first threaded rod can be rotated in the reverse direction, the first threaded rod can move in the direction away from the first threaded groove when rotating in the reverse direction, and when the first threaded rod moves to the outer position of the first threaded groove, the first iron core and the second iron core can be detached; therefore, the high-frequency transformer can be maintained, and the problems of complex dismounting process and low working efficiency when the iron core is dismounted for internal maintenance in the existing mounting mode are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a high-power high-frequency transformer that is resistant to electromagnetic interference. Background Art

[0002] As an important component in power electronics technology, high-power high-frequency transformers are widely used in many fields and have the characteristics of high efficiency and high reliability. High-power high-frequency transformers refer to transformers that can handle high power (such as greater than 10kW) and work in the high frequency range (such as greater than 20kHz). It not only realizes the conversion of electrical energy, but also improves the energy transmission efficiency through high-frequency operation and reduces the size and weight of the equipment.

[0003] High-power high-frequency transformers play an important role in power electronics technology, especially in situations where high-power and high-frequency signals need to be processed. High-power high-frequency transformers can significantly improve their ability to resist electromagnetic interference through optimization measures such as core and winding design, shielding and grounding, filtering and suppression, heat dissipation and layout. These measures not only help protect the transformer itself from electromagnetic interference, but also ensure the stable operation and reliability of the entire electronic system. When selecting and using high-power high-frequency transformers, their anti-electromagnetic interference performance should be fully considered, and reasonable configuration and optimization design should be carried out according to specific application scenarios and requirements.

[0004] The existing high-power high-frequency transformer needs to remove the iron core when repairing. Currently, when removing the iron core, a hot air gun needs to be used to heat the high-frequency transformer to separate the iron core from the resin paint of the high-frequency transformer. Then a blade is inserted into the joint of the iron core, and then the iron core can be removed. The disassembly process is complicated and the work efficiency is low. Utility Model Content

[0005] The utility model aims to provide a high-power high-frequency transformer resistant to electromagnetic interference, aiming to solve the problems in the prior art that the core disassembly process of the existing high-power high-frequency transformer is complicated and the work efficiency is low during maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-power high-frequency transformer with resistance to electromagnetic interference, comprising a winding skeleton, an external wire, a pin and an iron core, the surface of the winding skeleton is connected to the external wire, the bottom side of the winding skeleton is connected to the pin, the iron core comprises a first iron core and a second iron core, the first iron core is inserted into the interior of the winding skeleton, and the second iron core is inserted into the interior of the winding skeleton; a positioning block is connected to the bottom side of the first iron core, a positioning groove is provided on the upper surface of the second iron core close to the positioning block, a fixing hole is provided inside the first iron core, a first threaded groove is provided on the upper surface of the second iron core, and a first threaded rod is penetrated through the fixing hole and the first threaded groove.

[0007] In order to achieve the limiting of the first iron core and the second iron core during installation, as a preferred embodiment of the utility model for an electromagnetic interference resistant high-power high-frequency transformer, the positioning block forms a snap-fit ​​structure with the second iron core through the positioning groove.

[0008] In order to realize the installation of the first iron core and the second iron core, as a preferred embodiment of the utility model of a high-power high-frequency transformer resistant to electromagnetic interference, the first threaded rod and the first threaded groove are threadedly connected.

[0009] As a preferred high-power high-frequency transformer resistant to electromagnetic interference of the utility model, a connecting plate is provided on the side surface of the winding skeleton, the side surface of the connecting plate is connected to a guide rod, a guide hole is provided on the surface of the winding skeleton close to the guide rod, a bearing is embedded and installed inside the connecting plate, a second threaded rod is connected to the inside of the bearing, a second threaded groove is provided on the side surface of the winding skeleton close to the second threaded rod, and an extrusion block is connected to the side surface of the connecting plate close to the winding skeleton.

[0010] In order to limit the movement direction of the connecting plate, as a preferred embodiment of the utility model of a high-power high-frequency transformer resistant to electromagnetic interference, the guide rod is slidably connected to the winding frame through the guide hole.

[0011] In order to realize the wiring harness of external wires, as a preferred high-power high-frequency transformer resistant to electromagnetic interference of the utility model, a rotating structure is formed between the second threaded rod and the bearing, and a threaded connection is formed between the second threaded rod and the second thread groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model installs the first iron core and the second iron core through the threaded connection between the first threaded rod and the first threaded groove. When the high-frequency transformer needs to be repaired, the first threaded rod can be rotated in the reverse direction. When the first threaded rod is rotated in the reverse direction, it can move in the direction away from the first threaded groove. When the first threaded rod moves to the outer position of the first threaded groove, the first iron core and the second iron core can be removed, so that the high-frequency transformer can be repaired, avoiding the current installation method in which the iron core is disassembled for internal maintenance, and the disassembly process is complicated and the work efficiency is low.

[0014] According to the utility model, the external electric wire on the surface of the winding skeleton passes through between the extrusion block and the winding skeleton, and then the second threaded rod can be rotated by a screwdriver. The second threaded rod can move inward when it rotates inside the second thread groove. When the second threaded rod moves, it can drive the connecting plate to move laterally through the bearing. The lateral movement of the connecting plate can drive the extrusion block to move in the direction close to the external electric wire. In this way, the position of the external electric wire can be fixed by the extrusion block, so that the external electric wire can be bundled and the external electric wire can be prevented from being scattered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is an exploded view of the iron core connection structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the iron core connection structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the winding skeleton of the utility model;

[0020] Figure 5 It is an exploded view of the winding skeleton structure of the utility model.

[0021] In the figure: 1, winding skeleton; 2, external wire; 3, pin; 4, first iron core; 5, second iron core; 6, positioning block; 7, positioning groove; 8, fixing hole; 9, first threaded groove; 10, first threaded rod; 11, connecting plate; 12, guide rod; 13, guide hole; 14, bearing; 15, second threaded rod; 16, second threaded groove; 17, extrusion block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5The utility model provides the following technical solutions: a high-power high-frequency transformer with electromagnetic interference resistance, comprising a winding skeleton 1, an external wire 2, a pin 3 and an iron core, the surface of the winding skeleton 1 is connected with the external wire 2, the bottom side of the winding skeleton 1 is connected with the pin 3, the iron core comprises a first iron core 4 and a second iron core 5, the first iron core 4 is plugged into the inside of the winding skeleton 1, and the second iron core 5 is plugged into the inside of the winding skeleton 1; a positioning block 6 is connected to the bottom side of the first iron core 4, a positioning groove 7 is provided on the upper surface of the second iron core 5 near the positioning block 6, a fixing hole 8 is provided inside the first iron core 4, a first threaded groove 9 is provided on the upper surface of the second iron core 5, and a first threaded rod 10 is penetrated through the fixing hole 8 and the first threaded groove 9.

[0024] Preferably, the positioning block 6 forms a clamping structure with the second iron core 5 through the positioning groove 7 .

[0025] During specific use, the first iron core 4 is inserted into the winding frame 1 from the top, and the first iron core 4 drives the positioning block 6 to be inserted into the positioning groove 7, so that the first iron core 4 and the second iron core 5 can be connected.

[0026] Preferably, the first threaded rod 10 and the first threaded groove 9 are threadedly connected.

[0027] During specific use, the first iron core 4 and the second iron core 5 are installed through the threaded connection between the first threaded rod 10 and the first threaded groove 9 .

[0028] Preferably: a connecting plate 11 is provided on the side surface of the winding skeleton 1, a guide rod 12 is connected to the side surface of the connecting plate 11, a guide hole 13 is provided on the surface of the winding skeleton 1 near the guide rod 12, a bearing 14 is embedded and installed inside the connecting plate 11, a second threaded rod 15 is connected to the inside of the bearing 14, a second threaded groove 16 is provided on the side surface of the winding skeleton 1 near the second threaded rod 15, and an extrusion block 17 is connected to the side surface of the connecting plate 11 near the winding skeleton 1.

[0029] Preferably, the guide rod 12 is slidably connected to the winding skeleton 1 through the guide hole 13 .

[0030] During specific use, when the connecting plate 11 is subjected to an acting force, the guiding rod 12 can be driven to slide inside the guiding hole 13 , so that the moving direction of the connecting plate 11 can be limited.

[0031] Preferably, a rotating structure is formed between the second threaded rod 15 and the bearing 14 , and a threaded connection is formed between the second threaded rod 15 and the second thread groove 16 .

[0032] During specific use, the second threaded rod 15 can move inward when rotating inside the second threaded groove 16. When the second threaded rod 15 moves, it can drive the extrusion block 17 to move toward the direction close to the external wire 2 through the bearing 14 and the connecting plate 11, so that the position of the external wire 2 can be fixed by the extrusion block 17.

[0033] Working implementation principle: When using the high-power high-frequency transformer with anti-electromagnetic interference, when installing the iron core, the second iron core 5 can be first inserted into the interior of the winding frame 1 from the bottom, and then the first iron core 4 can be inserted into the interior of the winding frame 1 from the top. The first iron core 4 drives the positioning block 6 to be inserted into the interior of the positioning groove 7, and then the first threaded rod 10 is passed through the interior of the fixing hole 8 and moved to the end of the first threaded groove 9. Then, the first threaded rod 10 can be rotated, and the first threaded rod 10 can be rotated to move downward inside the first threaded groove 9, so that the first iron core 4 and the second iron core 5 can be installed through the threaded connection between the first threaded rod 10 and the first threaded groove 9;

[0034] When the high-frequency transformer needs to be repaired, the first threaded rod 10 can be rotated in the reverse direction. When the first threaded rod 10 is rotated in the reverse direction, it can move in a direction away from the first thread groove 9. When the first threaded rod 10 moves to the outer position of the first thread groove 9, the first iron core 4 and the second iron core 5 can be removed, so that the high-frequency transformer can be repaired;

[0035] The external wire 2 on the surface of the winding skeleton 1 is passed through between the extrusion block 17 and the winding skeleton 1, and then the second threaded rod 15 can be rotated by a screwdriver. The second threaded rod 15 can move inward when rotating inside the second thread groove 16. When the second threaded rod 15 moves, it can drive the connecting plate 11 to move horizontally through the bearing 14. The horizontal movement of the connecting plate 11 can drive the extrusion block 17 to move in the direction close to the external wire 2, so that the position of the external wire 2 can be fixed by the extrusion block 17.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-power high-frequency transformer with electromagnetic interference resistance, comprising a winding frame (1), an external wire (2), a pin (3) and an iron core, characterized in that: The surface of the winding frame (1) is connected to an external wire (2), the bottom side of the winding frame (1) is connected to a pin (3), the iron core comprises a first iron core (4) and a second iron core (5), the first iron core (4) is plugged into the interior of the winding frame (1), and the second iron core (5) is plugged into the interior of the winding frame (1); A positioning block (6) is connected to the bottom side of the first iron core (4); a positioning groove (7) is provided on the upper surface of the second iron core (5) near the positioning block (6); a fixing hole (8) is provided inside the first iron core (4); a first threaded groove (9) is provided on the upper surface of the second iron core (5); and a first threaded rod (10) penetrates the fixing hole (8) and the first threaded groove (9).

2. The high-power high-frequency transformer against electromagnetic interference according to claim 1, characterized in that: The positioning block (6) forms a snap-fit ​​structure with the second iron core (5) via the positioning groove (7).

3. The high-power high-frequency transformer against electromagnetic interference according to claim 1, characterized in that: The first threaded rod (10) and the first threaded groove (9) are threadedly connected.

4. The high-power high-frequency transformer against electromagnetic interference according to claim 1, characterized in that: A connecting plate (11) is provided on the side surface of the winding skeleton (1), the side surface of the connecting plate (11) is connected to a guide rod (12), a guide hole (13) is provided on the surface of the winding skeleton (1) close to the guide rod (12), a bearing (14) is fitted inside the connecting plate (11), a second threaded rod (15) is connected through the inside of the bearing (14), a second threaded groove (16) is provided on the side surface of the winding skeleton (1) close to the second threaded rod (15), and an extrusion block (17) is connected to the side surface of the connecting plate (11) close to the winding skeleton (1).

5. The high-power high-frequency transformer against electromagnetic interference according to claim 4, characterized in that: The guide rod (12) is slidably connected to the winding skeleton (1) via the guide hole (13).

6. The high-power high-frequency transformer against electromagnetic interference according to claim 5, characterized in that: A rotating structure is formed between the second threaded rod (15) and the bearing (14), and a threaded connection is formed between the second threaded rod (15) and the second thread groove (16).

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