Magnetic resistance high-frequency transformer structure

Abstract

The utility model discloses a magnetic resistance high-frequency transformer structure, which relates to the technical field of high-frequency transformers, and comprises a base, an iron core is arranged in the base, a winding is wound on the iron core, a shielding foil is wrapped on the outer side of the winding, the magnetic resistance high-frequency transformer structure further comprises shielding mechanisms, and the shielding mechanisms are arranged at the upper end and the lower end of the winding. The shielding mechanism is divided into an upper part and a lower part, internal magnetic flux leakage can be reduced through the shielding mechanism, and the shielding mechanism is detachably arranged up and down; the heat dissipation mechanism is located on the end faces of the upper end and the lower end of the shielding mechanism, and heat dissipation of the surface of the winding can be improved through the heat dissipation mechanism; according to the magnetic resistance high-frequency transformer structure, the shielding mechanism is arranged, the upper shell and the lower shell are connected in a clamped mode, the shielding covers are fixed to the upper ends and the lower ends of the upper shell and the lower shell, and the phenomenon of magnetic leakage is further avoided through the shielding covers.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency transformers, in particular to a magnetic resistance high-frequency transformer structure. Background Art

[0002] A high-frequency transformer is a power transformer that works at high frequency. It is mainly used as a high-frequency switching power supply transformer in a high-frequency switching power supply. Its main structure consists of an iron core, windings, and pins.

[0003] However, when the high-frequency transformer is in use, magnetic leakage will occur inside, which will lead to internal energy loss, thus affecting the working efficiency of the high-frequency transformer. The peripheral side of the winding is the main location of magnetic leakage. Therefore, the traditional method is to just wrap a layer of shielding foil on the surface of the winding, but magnetic leakage will still occur on the peripheral side of the winding, thus affecting the use of the high-frequency transformer. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a magnetic resistance high frequency transformer structure, which solves the problems raised by the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a magnetic resistance high-frequency transformer structure, including a base, an iron core is arranged inside the base, a winding is wound on the iron core, and a shielding foil is wrapped on the outside of the winding, and also includes: a shielding mechanism, the shielding mechanism is arranged at the upper and lower ends of the winding, the shielding mechanism is divided into an upper and lower part, and the internal magnetic leakage can be reduced by the shielding mechanism, and the shielding mechanism can be detachably arranged up and down; a heat dissipation mechanism, the heat dissipation mechanism is located at the end faces of the upper and lower ends of the shielding mechanism, and the heat dissipation of the winding surface can be improved through the heat dissipation mechanism.

[0006] Furthermore, the shielding mechanism includes: an upper shell, a lower shell is arranged at the lower end of the upper shell, a shielding cover is fixedly connected to the outer end faces of the upper shell and the lower shell, a plug-in plate is fixedly connected to the lower end edge of the upper shell, a fixed plate is fixedly connected to the upper end edge of the lower shell, a slot is provided on the inner side of the fixed plate, and the plug-in plate is matched with the slot for plug-in connection; a card block, the card block is fixedly connected at the upper end of the fixed plate, and the card block is symmetrically arranged, a card slot is provided at the upper end of the plug-in plate, and the card block is matched with the card slot for plug-in connection.

[0007] Furthermore, the heat dissipation mechanism includes: heat dissipation bars, which are fixedly arranged on the end surfaces of the upper shell and the lower shell, and there are multiple heat dissipation bars, which are arranged at equal intervals.

[0008] Furthermore, the heat dissipation mechanism also includes: a perforation, wherein the perforation is arranged through the side surface of the shielding cover, and the number of the perforations is multiple and the intervals are equal.

[0009] Furthermore, the width of the card block is set to 1 cm.

[0010] Furthermore, the inner ends of the upper shell and the lower shell are both arranged to abut against the iron core, and the shielding cover is arranged apart from the shielding foil.

[0011] Compared with the above-mentioned background technology, the magnetic-resistance high-frequency transformer structure provided in the present application includes a high-frequency transformer with very mature technology today, and a shielding mechanism as a core component. Its principle relies on wrapping the winding with an upper shell and a lower shell, and the upper shell, the lower shell and the shielding cover wrap the magnetic field inside to reduce the occurrence of leakage magnetic phenomenon.

[0012] The utility model provides a magnetic resistance high frequency transformer structure. Compared with the prior art, it has the following beneficial effects:

[0013] The magnetic resistance high frequency transformer structure is provided with a shielding mechanism, the upper shell and the lower shell are mutually clamped and connected, shielding covers are fixed at the upper and lower ends of the upper shell and the lower shell, and the shielding covers are further used to avoid magnetic leakage.

[0014] The magnetic resistance high-frequency transformer structure has a heat dissipation mechanism, and the heat dissipation strips assist the upper shell and the lower shell to increase the contact area with the air, thereby achieving a better heat dissipation effect, so that the internal heat of the high-frequency transformer can be dissipated faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the shielding mechanism of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the shielding mechanism of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the base, core and winding of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the shielding foil of the utility model;

[0020] Figure 6 for Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. base; 2. iron core; 3. winding; 4. upper shell; 5. lower shell; 6. shielding cover; 7. heat dissipation strip; 8. perforation; 9. shielding foil; 10. card slot; 11. plug-in board; 12. fixing plate; 13. slot; 14. card 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 1-6 The utility model provides a technical solution: a magnetic resistance high-frequency transformer structure, including a base 1, an iron core 2 is arranged inside the base 1, a winding 3 is wound on the iron core 2, and a shielding foil 9 is wrapped on the outer side of the winding 3, and also includes: a shielding mechanism, the shielding mechanism is arranged at the upper and lower ends of the winding 3, the shielding mechanism is divided into an upper and lower part, and the internal leakage magnetic flux can be reduced by the shielding mechanism, and the shielding mechanism can be detachably arranged up and down; a heat dissipation mechanism, the heat dissipation mechanism is arranged at the end surfaces of the upper and lower ends of the shielding mechanism, and the heat dissipation of the surface of the winding 3 can be improved by the heat dissipation mechanism; the winding 3 is arranged on the inner side of the iron core 2, and the shielding foil 9 is wrapped on the outer side of the winding 3, the shielding foil 9 is a metal foil, which can shield the leakage magnetic flux generated by the winding 3, and the shielding mechanism is arranged at the upper and lower ends of the winding 3 as a whole, and the magnetic field leaking outside is further shielded by the shielding mechanism, and a heat dissipation mechanism is arranged on the outer side of the shielding mechanism, and the heat dissipation mechanism can increase the heat dissipation of the winding 3 to avoid overheating inside during use.

[0024] like Figure 3 and Figure 6 As shown, the shielding mechanism includes: an upper shell 4, a lower shell 5 is arranged at the lower end of the upper shell 4, a shielding cover 6 is fixedly connected to the outer end faces of the upper shell 4 and the lower shell 5, a plug-in board 11 is fixedly connected to the lower end edge of the upper shell 4, a fixed plate 12 is fixedly connected to the upper end edge of the lower shell 5, a slot 13 is provided on the inner side of the fixed plate 12, and the plug-in board 11 is matched with the slot 13 for plugging and setting; a card block 14, the card block 14 is fixedly connected at the upper end of the fixed plate 12, and the card block 14 is symmetrically arranged, and a card slot 10 is provided at the upper end of the plug-in board 11. The card block 14 is matched with the card slot 10 for card connection; the upper shell 4 and the lower shell 5 are assembled together, and when assembling, the plug plate 11 at the lower edge of the upper shell 4 is inserted into the slot 13 inside the inner side of the fixing plate 12 at the upper edge of the lower shell 5, and then the card block 14 is stuck in the card slot 10 to firmly connect the upper shell 4 and the lower shell 5. Shielding cover 6 is fixed at the upper and lower ends of the upper shell 4 and the lower shell 5, and the shielding cover 6 can further avoid magnetic leakage. Specifically, the upper shell 4, the lower shell 5 and the shielding cover 6 are all made of metal.

[0025] like Figure 3As shown, the heat dissipation mechanism includes: heat dissipation strips 7, which are fixedly arranged on the end surfaces of the upper shell 4 and the lower shell 5, and there are multiple heat dissipation strips 7, which are arranged at equal intervals. The heat dissipation strips 7 are rectangular and arranged on the upper and lower end surfaces of the upper shell 4 and the lower shell 5. The heat dissipation strips 7 can increase the contact area with the air, thereby increasing the overall heat dissipation effect.

[0026] like Figure 3 As shown, the heat dissipation mechanism also includes: a perforation 8, which is set through the side of the shielding cover 6, and the number of the perforations 8 is multiple and the spacing is equal. Similarly, the perforations 8 on both sides of the shielding cover 6 can achieve further heat dissipation effect, so that the internal hot air is discharged to the outside, thereby achieving a better heat dissipation effect.

[0027] like Figure 6 As shown, the width of the block 14 is set to 1 cm. The width of the block 14 is set to 1 cm so that when the upper shell 4 and the lower shell 5 are disassembled, it is convenient for the user to push the block 14 outward to facilitate the disassembly of the upper shell 4 and the lower shell 5.

[0028] like Figure 2 As shown, the inner ends of the upper shell 4 and the lower shell 5 are both set against the iron core 2, and the shielding cover 6 is set away from the shielding foil 9. The inner ends of the upper shell 4 and the lower shell 5 are set against the iron core 2 to achieve a better heat transfer effect. The heat dissipation effect can also be increased by the upper shell 4 and the lower shell 5, and the shielding cover 6 is set away from the shielding foil 9 to achieve a better shielding effect of leakage magnetic field.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A magnetic resistance high frequency transformer structure, comprising a base (1), an iron core (2) being arranged inside the base (1), a winding (3) being wound around the iron core (2), characterized in that: The outer side of the winding (3) is wrapped with a shielding foil (9), and further comprises: A shielding mechanism is provided at the upper and lower ends of the winding (3), the shielding mechanism is composed of an upper and a lower part, and the internal magnetic leakage can be reduced by the shielding mechanism, and the shielding mechanism is detachably provided at the upper and lower ends. A heat dissipation mechanism is arranged at the end surfaces at the upper and lower ends of the shielding mechanism, and can improve the heat dissipation of the surface of the winding (3) through the heat dissipation mechanism.

2. A magnetic resistance high frequency transformer structure according to claim 1, characterized in that: The shielding mechanism comprises: An upper shell (4), a lower shell (5) being arranged at the lower end of the upper shell (4), a shielding cover (6) being fixedly connected to the outer end surfaces of the upper shell (4) and the lower shell (5), a plug plate (11) being fixedly connected to the lower end edge of the upper shell (4), a fixing plate (12) being fixedly connected to the upper end edge of the lower shell (5), a slot (13) being arranged on the inner side of the fixing plate (12), and the plug plate (11) and the slot (13) being matched and plugged together; A card block (14) is located at the upper end of the fixed plate (12) and is fixedly connected thereto. The card block (14) is symmetrically arranged. A card slot (10) is provided at the upper end of the plug plate (11). The card block (14) is arranged to match and be snap-fitted with the card slot (10).

3. A magnetic resistance high frequency transformer structure according to claim 2, characterized in that: The heat dissipation mechanism comprises: The heat dissipation strips (7) are fixedly arranged on the end surfaces of the upper shell (4) and the lower shell (5), and there are a plurality of heat dissipation strips (7) which are arranged at equal intervals.

4. The high frequency magnetic resistance transformer structure according to claim 3, characterized in that: The heat dissipation mechanism also includes: A perforation (8), wherein the perforation (8) is arranged through a side surface of the shielding cover (6), and the number of the perforations (8) is multiple and the intervals are equal.

5. The high frequency magnetic resistance transformer structure according to claim 2, characterized in that: The width of the card block (14) is set to 1 cm.

6. The high frequency magnetic resistance transformer structure according to claim 2, characterized in that: The inner ends of the upper shell (4) and the lower shell (5) are both arranged to abut against the iron core (2), and the shielding cover (6) is arranged to be separated from the shielding foil (9).

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