CN219575356U

CN219575356U - Anti-interference high-frequency transformer

Info

Publication number: CN219575356U
Application number: CN202320373339.0U
Authority: CN
Inventors: 曾勇新
Original assignee: Meizhou Xingruida Electronic Industry Co ltd
Current assignee: Meizhou Xingruida Electronic Industry Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-08-22
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses an anti-interference high-frequency transformer, which comprises a protective shell, wherein a top cover is fixedly connected with a top opening of the protective shell in a gluing mode, a high-frequency transformer body is arranged at the bottom of the inner side of the protective shell, insulating copper foils are arranged on the inner walls of the protective shell and the top cover, pins are arranged on the two sides of the bottom of the high-frequency transformer body at equal intervals, pin openings penetrate through the bottom ends of the corresponding pins of the protective shell, the inner walls of the pin openings are in sealing connection with the pins through sealing rings, and the pins are detachably connected with the high-frequency transformer body through a dismounting mechanism. According to the utility model, the pins penetrate through the protective shell through the pin openings and are in threaded connection with the threaded grooves through the mounting screw rods, so that the pins and the electric connection pieces are in detachable connection, after the pins are broken or are subjected to electric corrosion, the pins can be replaced without replacing the whole high-frequency transformer, the use cost of the high-frequency transformer is reduced, and the practicability of the high-frequency transformer is greatly improved.

Description

Anti-interference high-frequency transformer

Technical Field

The utility model relates to the technical field of high-frequency transformers, in particular to an anti-interference high-frequency transformer.

Background

The high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency, is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inversion power transformer in a high-frequency inversion power supply and a high-frequency inversion welder, and in order to improve the anti-interference performance of the high-frequency transformer, an anti-interference high-frequency transformer is provided.

Current anti-interference high frequency transformers, for example, publication No.: the high-frequency transformer with the anti-interference function comprises a protection seat and a transformer body, wherein before the transformer is installed, the protection seat is installed on a circuit board, then the transformer body is placed in a containing cavity of the protection seat, pins of the transformer body are correspondingly placed in through grooves and pass through installation holes on the circuit board, then the pins are welded on the circuit board, when severe vibration occurs, the vibration can be resisted through the protection seat, and the vibration of the transformer body is limited in the containing cavity, so that the influence on the pins of the transformer body is reduced; in addition, the arrangement of the copper open loop can effectively reduce the accident between the winding layers, reduce the distributed capacitance and play a role of electrostatic shielding; in addition, the primary coil and the secondary coil adopt a honeycomb winding method, so that leakage inductance is effectively reduced, and the influence of LC oscillation is reduced.

The existing anti-interference high-frequency transformer has anti-interference performance, leakage inductance can be effectively reduced, the influence of LC oscillation is reduced, but when the anti-interference high-frequency transformer is used, pins (pins) of the transformer are connected with a body of the transformer in a non-detachable mode, the pins are easy to break in transportation and form, the whole transformer is scrapped and cannot be used, and when the transformer is used, the pins are easy to be subjected to electric corrosion, the service life of the transformer is short, the whole transformer needs to be replaced, the pins cannot be replaced independently, so that the use cost of the transformer is reduced, and the anti-interference high-frequency transformer is inconvenient to use.

Disclosure of Invention

The utility model aims to provide an anti-interference high-frequency transformer, which achieves the purposes that after pins are broken or electric corrosion occurs, the pins can be replaced without replacing the whole high-frequency transformer, the use cost of the high-frequency transformer is reduced, and the practicability of the high-frequency transformer is greatly improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an anti-interference high-frequency transformer comprises a protective shell, wherein the top opening of the protective shell is fixedly connected with a top cover in a gluing mode, the bottom of the inner side of the protective shell is provided with a high-frequency transformer body, and the high-frequency transformer body is arranged at the bottom of the inner side of the protective shell,

the inner walls of the protective shell and the top cover are provided with isolated copper foils, pins are arranged at equal intervals on two sides of the bottom of the high-frequency transformer body, and pin ports penetrate through the bottom ends of the pins corresponding to the protective shell;

the inner wall of pin mouth passes through sealing washer and pin sealing connection, the pin passes through dismouting mechanism and constitutes detachable connection with the high frequency transformer body, the high frequency transformer body dispels the heat through cooling body.

Preferably, the dismounting mechanism comprises an electric connection piece, the electric connection piece is mounted at the bottom of the pin corresponding to the high-frequency transformer body, a thread groove is formed in the bottom end of the electric connection piece, a mounting screw is fixed at the top end of the pin corresponding to the thread groove, and a spring pad is mounted at the top of the inner side of the thread groove.

Preferably, the pins are connected with the electrical connection member through a mounting screw rod and a thread groove, and the mounting screw rod is elastically connected with the electrical connection member through a spring pad.

Preferably, the heat dissipation mechanism comprises a connecting frame, the connecting frame is arranged between the two sides of the high-frequency transformer body and the inner wall of the protective shell, the connecting frame is coated with heat conduction silicone grease, the two ends of the heat conduction silicone grease are respectively connected with the high-frequency transformer body and the inner wall of the protective shell, and the outer side of the protective shell corresponding to the heat conduction silicone grease is provided with heat dissipation fins.

Preferably, the radiating fins are fixedly connected with the protective shell in an integrated manner.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the pins penetrate through the protective shell through the pin openings and are in threaded connection with the threaded grooves through the mounting screw rods, so that the pins and the electric connection pieces are in detachable connection, after the pins are broken or are subjected to electric corrosion, the pins can be replaced without replacing the whole high-frequency transformer, the use cost of the high-frequency transformer is reduced, and the practicability of the high-frequency transformer is greatly improved.

2. According to the utility model, when the high-frequency transformer body works to generate heat, the heat conduction silicone grease is borne by the connecting frame, so that the high-frequency transformer body can transfer the heat to the protective shell through the heat conduction silicone grease, and the heat dissipation area of the protective shell is increased through the heat dissipation fins, so that the protective shell can rapidly dissipate the heat, and the high-frequency transformer body in the protective shell can rapidly dissipate the heat.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present utility model.

In the figure: 1. a protective housing; 2. a top cover; 3. a high frequency transformer body; 4. isolating copper foil; 5. pins; 6. a pin port; 7. a seal ring; 8. an electrical connection member; 9. a thread groove; 10. installing a screw; 11. a spring pad; 12. a connecting frame; 13. heat conductive silicone grease; 14. and a heat radiating fin.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

referring to fig. 1 to 3, the present utility model provides a technical solution: an anti-interference high-frequency transformer comprises a protective shell 1, wherein the top opening of the protective shell 1 is fixedly connected with a top cover 2 in a gluing mode, the bottom of the inner side of the protective shell 1 is provided with a high-frequency transformer body 3, wherein,

the inner walls of the protective shell 1 and the top cover 2 are provided with insulating copper foils 4, pins 5 are arranged at equal intervals on two sides of the bottom of the high-frequency transformer body 3, and pin ports 6 penetrate through the bottom ends of the pins 5 corresponding to the protective shell 1;

the inner wall of pin mouth 6 passes through sealing washer 7 and pin 5 sealing connection, and pin 5 constitutes detachable connection through dismouting mechanism and high frequency transformer body 3, and high frequency transformer body 3 dispels the heat through the cooling body.

Referring to fig. 1 to 3, the dismounting mechanism comprises an electrical connection piece 8, the electrical connection piece 8 is mounted at the bottom of a pin 5 corresponding to the high-frequency transformer body 3, a thread groove 9 is formed at the bottom end of the electrical connection piece 8, a mounting screw 10 is fixed at the top end of the pin 5 corresponding to the thread groove 9, a spring pad 11 is mounted at the top of the inner side of the thread groove 9, the pin 5 is connected with the electrical connection piece 8 through the mounting screw 10 and the thread groove 9, the mounting screw 10 and the electrical connection piece 8 form elastic connection, the high-frequency transformer body 3 is mounted in the protective housing 1, the influence of the outside on the high-frequency transformer body 3 can be effectively isolated through an isolated copper foil 4, the pin 5 penetrates through the protective housing 1 through the pin opening 6, and is connected with the thread groove 9 through the mounting screw 10, so that the pin 5 and the electrical connection piece 8 form detachable connection, after the pin 5 is broken or is subjected to electric corrosion, the pin 5 can be replaced without replacing the whole of the high-frequency transformer, the use cost of the high-frequency transformer is reduced, the high-frequency transformer is greatly improved, the practicality is improved, the screw 10 can be prevented from being loosened through the mounting screw 10 and the thread groove 10, and the screw 10 can be prevented from being loosened through the mounting screw 10.

Referring to fig. 1 to 3, the heat dissipation mechanism includes a connecting frame 12, a connecting frame 12 is installed between two sides of the high-frequency transformer body 3 and an inner wall of the protective housing 1, a heat conduction silicone grease 13 is coated on the connecting frame 12, two ends of the heat conduction silicone grease 13 are respectively connected with the high-frequency transformer body 3 and the inner wall of the protective housing 1, a heat dissipation fin 14 is installed on the outer side of the protective housing 1 corresponding to the heat conduction silicone grease 13, the heat dissipation fin 14 is fixedly connected with the protective housing 1, when the high-frequency transformer body 3 works to generate heat, the heat conduction silicone grease 13 is borne by the connecting frame 12, so that the high-frequency transformer body 3 can transfer the heat to the protective housing 1 through the heat conduction silicone grease 13, and the heat dissipation area of the protective housing 1 is increased through the heat dissipation fin 14, so that the protective housing 1 can dissipate the heat quickly, and the high-frequency transformer body 3 in the protective housing 1 can dissipate the heat quickly.

Working principle: this anti-interference high frequency transformer, high frequency transformer body 3 installs the inside at protective housing 1, can effectively keep apart external influence to high frequency transformer body 3 through isolated copper foil 4, pin 5 runs through protective housing 1 through pin mouth 6, and screw thread connection through installation screw rod 10 and screw thread groove 9 constitution, make pin 5 and electric connection 8 constitute and dismantle the connection, after pin 5 is broken or take place the electric corrosion, can change pin 5, need not to change high frequency transformer's whole, reduce high frequency transformer's use cost, very big improvement high frequency transformer's practicality, and when constitute threaded connection through installation screw rod 10 and screw thread groove 9, can increase the pretightning force between installation screw rod 10 and the screw thread groove 9 through spring pad 11, avoid installation screw rod 10 to take place to reverse and lead to pin 5 not hard up, and when high frequency transformer body 3 work produces heat, bear the heat through link 12 to heat conduction silicone grease 13, make high frequency transformer body 3 can be through quick transfer to protective housing 1 on the heat through silicone grease 13, and through the heat dissipation fin of protective housing 1, can increase the heat dissipation area of protective housing 1 fast, high frequency transformer body 1 can protect the inner heat dissipation device 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An anti-interference high frequency transformer, comprising a protective casing (1), characterized in that: the top opening of the protective shell (1) is fixedly connected with a top cover (2) in a gluing mode, the bottom of the inner side of the protective shell (1) is provided with a high-frequency transformer body (3), wherein,

the insulation copper foil (4) is arranged on the inner walls of the protective shell (1) and the top cover (2), pins (5) are arranged on the two sides of the bottom of the high-frequency transformer body (3) at equal intervals, and pin ports (6) penetrate through the bottom ends of the pins (5) corresponding to the protective shell (1);

the inner wall of the pin port (6) is in sealing connection with the pin (5) through a sealing ring (7), the pin (5) is detachably connected with the high-frequency transformer body (3) through a disassembly and assembly mechanism, and the high-frequency transformer body (3) dissipates heat through a heat dissipation mechanism.

2. An anti-interference high frequency transformer according to claim 1, characterized in that: the disassembly and assembly mechanism comprises an electric connection piece (8), the electric connection piece (8) is installed at the bottom of the high-frequency transformer body (3) corresponding to the pin (5), a thread groove (9) is formed in the bottom end of the electric connection piece (8), an installation screw (10) is fixed at the top end of the pin (5) corresponding to the thread groove (9), and a spring pad (11) is installed at the top of the inner side of the thread groove (9).

3. An anti-interference high frequency transformer according to claim 1, characterized in that: the pin (5) is connected with the electric connecting piece (8) through the mounting screw rod (10) and the thread groove (9), and the mounting screw rod (10) and the electric connecting piece (8) form elastic connection through the spring pad (11).

4. An anti-interference high frequency transformer according to claim 1, characterized in that: the heat dissipation mechanism comprises a connecting frame (12), wherein the connecting frame (12) is arranged between two sides of the high-frequency transformer body (3) and the inner wall of the protective shell (1), heat conduction silicone grease (13) is coated on the connecting frame (12), two ends of the heat conduction silicone grease (13) are respectively connected with the high-frequency transformer body (3) and the inner wall of the protective shell (1), and the outer side of the protective shell (1) corresponding to the heat conduction silicone grease (13) is provided with heat dissipation fins (14).

5. The anti-interference high frequency transformer according to claim 4, wherein: the radiating fins (14) are fixedly connected with the protective shell (1) in an integral mode.