High-power high-frequency transformer with adjustable leakage inductance

Abstract

The utility model relates to a high-power high-frequency transformer with adjustable leakage inductance, which comprises a shell, a mounting seat is fixed on the surface of the shell, a bolt is arranged on the surface of the mounting seat, a connecting assembly is arranged on the surfaces of the mounting seat and the bolt, and the connecting assembly comprises a cavity used for stabilizing a sliding plate; the sliding plate is used for driving the ejector rod to move; according to the high-power high-frequency transformer with the adjustable leakage inductance, through the arranged connecting assembly, when the bolt is fastened, the sliding plate drives the ejector rod to reset and enter the limiting groove, the side, away from the inclined face, of the limiting groove abuts against the surface of the ejector rod at the moment, the bolt can be limited, the bolt cannot rotate reversely at the moment, and long-time use is avoided; when maintenance is needed, a pressing rod is pulled to enable an abutting plate to abut against the inclined face of the fixing block through an arranged relieving piece, and therefore a sliding plate and an ejector rod are driven to move downwards to be separated from a limiting groove, and normal dismounting can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -power high -frequency transformer technical field, concretely relates to a kind of adjustable leakage inductance high -power high -frequency transformer. BACKGROUND

[0002] High-frequency transformer is a kind of transformer specially designed for high-frequency ac signal. Compared with ordinary low-frequency transformer, high-frequency transformer has the characteristics of higher frequency in working frequency, and has a wide range of applications in communication, power conversion, electronic equipment, heating and medical field, etc., through the power conversion and power transmission of transformer, high-frequency transformer plays a key role in different fields.

[0003] At present, the existing high-frequency transformer on the market is mainly connected and fixed with equipment through bolts and other fasteners. Although this fixing method can meet the installation requirements to some extent, the vibration and vibration inside the equipment during long-term operation often have adverse effects on bolt connection. With the passage of time, the bolt can gradually loosen due to continuous micro-displacement, which not only reduces the stability of the connection, but also threatens the performance and safety of the high-frequency transformer. Loosening of the bolt can cause poor electrical connection between the high-frequency transformer and the equipment, thereby affecting the conversion efficiency of electric energy and the stability of power transmission. In extreme cases, loose bolt can even cause high-frequency transformer to fall off or be damaged, thereby causing more serious equipment failure or safety accident. The existing high-frequency transformer lacks an effective mechanism to ensure that the bolt remains fastened after long-term operation during installation. Traditional fastening methods often rely on regular inspection and maintenance by artificial, which not only increases the operation and maintenance cost, but also is difficult to completely avoid the risks caused by bolt loosening. SUMMARY

[0004] The utility model aims at providing a kind of adjustable leakage inductance high -power high -frequency transformer, prevent loosening and affect normal work for long time.

[0005] The technical solutions adopted by the utility model are as follows:

[0006] A kind of adjustable leakage inductance high -power high -frequency transformer, including shell, the surface of the shell is fixed with mounting seat, the surface of the mounting seat is provided with bolt, the surface of the mounting seat and bolt is provided with connecting assembly;

[0007] The connecting assembly comprises:

[0008] Cavity, cavity is used to stabilize sliding plate;

[0009] Sliding plate, sliding plate is used to drive top rod to move;

[0010] Top rod, top rod avoids bolt reverse;

[0011] The releasing member facilitates disassembly.

[0012] The utility model discloses still include following features:

[0013] The cavity is arranged in the inside of the mounting base, the inner wall of the cavity is slidably connected with a sliding plate, the bottom of the sliding plate is fixed with a spring one, the bottom of the spring one is fixed on the inner wall bottom of the cavity, the top of the sliding plate is fixed with a top rod, the top of the top rod penetrates the mounting base, and the top rod is slidably connected with the mounting base, the surface of the bolt is provided with a limiting slot, the inner wall of the cavity is provided with a releasing member, when the bolt fastening is completed, the sliding plate drives the top rod to reset into the limiting slot, at this time, the side of the limiting slot far from the inclined surface is in contact with the surface of the top rod, so that the bolt can be limited, and at this time, the bolt cannot be reversed.

[0014] The releasing member includes a rotating plate, the rotating plate is rotatably connected to the inner wall of the cavity, the surface of the rotating plate is provided with a through hole, the inner wall of the through hole is in contact with a short rod, the surface of the short rod is fixed with a contact plate, the inner wall of the cavity is fixed with a stabilizing frame, the surface of the contact plate is slidably connected to the inner side of the stabilizing frame, the top of the sliding plate is fixed with a fixed block, the surface of the contact plate is provided with four groups, and the four groups of contact plates are circularly arrayed with the center of the sliding plate as the axis, the surface of the four groups of contact plates is fixed with a pressing rod, one end of the pressing rod far from the contact plate penetrates the mounting base, the pressing rod is slidably connected with the mounting base, the surface of the contact plate is fixed with a spring two, one end of the spring two far from the contact plate is fixed on the inner wall of the cavity, the pressing rod is pulled, the contact plate moves, and the short rod, the through hole and the rotating plate make the contact plates move radially synchronously, the surface of the contact plate is in contact with the inclined surface of the fixed block, the sliding plate drives the top rod to move downward, so that the top rod is separated from the limiting slot.

[0015] The inner side of the shell is provided with a high-frequency magnetic core, the surface of the high-frequency magnetic core is connected with a primary coil, and the surface of the high-frequency magnetic core is connected with a secondary coil; by adjusting the distance between the two groups of coils, the leakage inductance value between the coils is adjusted, and the leakage inductance value is reduced through the coil coupling between the primary and secondary coils, so that the efficiency is improved and the loss is reduced.

[0016] The limiting slot is provided in an inclined manner, so that when the top rod enters the limiting slot, the bolt can only be rotated in one direction and cannot be reversed.

[0017] The through hole is provided in an arc shape, so that when the rotating plate rotates, the short rod and the contact plate can move radially synchronously.

[0018] The side of the fixed block close to the contact plate is provided in an inclined surface, and when the surface of the contact plate is in contact with the surface of the contact plate, the sliding plate can be driven to move downward.

[0019] One end of the top rod far from the sliding plate penetrates the rotating plate, so as to avoid affecting the normal rotation of the rotating plate.

[0020] The technical effect achieved by the utility model is:

[0021] 1、 this big -power high -frequency transformer of adjustable leakage inductance, when the bolt fastening is completed, the slide plate drives the ejector rod reset to enter the limiting groove, the side far from the inclined surface of the limiting groove is in contact with the surface of the ejector rod at this time, the bolt can be limited, the bolt cannot be reversed at this time, long -term use is avoided, loosening occurs, normal use is affected, the relieving piece is set, when maintenance is needed, the contact plate and the inclined surface of the fixed block are in contact by pulling the pressure rod, so that the slide plate and the ejector rod are driven to move down and separate from the limiting groove, and normal removal can be realized.

[0022] 2、 this big -power high -frequency transformer of adjustable leakage inductance, by winding the high -frequency magnetic core in the primary coil and the secondary coil, the primary coil and the secondary coil of the transformer are coupled, and the distance between the two groups of coils is adjusted, the leakage inductance value between the coils is adjusted, and the leakage inductance value is reduced by the coil coupling between the primary and secondary coils, thereby improving the efficiency and reducing the loss. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a front view structure schematic diagram;

[0024] Fig. 2 It is a partial bottom view structure schematic diagram;

[0025] Fig. 3 It is a sectional view structure schematic diagram;

[0026] Fig. 4 It is a front view structure schematic diagram of the connecting assembly.

[0027] In the drawing: 1, shell;2, mounting seat;3, bolt;4, high-frequency magnetic core;5, primary coil;7, secondary coil;6, connecting assembly;60, cavity;61, slide plate;62, spring one;63, ejector rod;64, limiting groove;65, relieving piece;650, rotating plate;651, through hole;652, contact plate;653, stabilizer;654, spring two;655, fixed block;656, pressure rod;657, short rod. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the utility model more clear and clear, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection range of the utility model. As used in this text, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human error;

[0029] In combination Figs. 1 to 4As shown is below the specific features of the adjustable leakage inductance high-power high-frequency transformer: including the shell 1, the surface of the shell 1 is fixed with the mounting seat 2, the surface of the mounting seat 2 is provided with the bolt 3, the surface of the mounting seat 2 and the bolt 3 is provided with the connecting assembly 6, the connecting assembly 6 includes: cavity 60, sliding plate 61, spring one 62, top rod 63, limiting groove 64, release piece 65, rotating plate 650, through-hole 651, abutment plate 652, stabilizing frame 653, spring two 654, fixed block 655, pressure bar 656, short rod 657.

[0030] The cavity 60 is opened in the inside of the mounting seat 2, the inner wall of the cavity 60 is slidably connected with the sliding plate 61, the bottom of the sliding plate 61 is fixed with the spring one 62, the bottom of the spring one 62 is fixed on the inner wall bottom of the cavity 60, the top of the sliding plate 61 is fixed with the top rod 63, the top of the top rod 63 penetrates the mounting seat 2, and the top rod 63 is slidably connected with the mounting seat 2, the surface of the bolt 3 is provided with the limiting groove 64, the inner wall of the cavity 60 is provided with the release piece 65, when the bolt 3 is fastened, the surface of the bolt 3 and the surface of the top rod 63 abut, the top rod 63 drives the sliding plate 61 to move downward, the spring one 62 is compressed, when the bolt 3 is fastened, the position of the top rod 63 is parallel to the limiting groove 64, the spring one 62 is released, the sliding plate 61 drives the top rod 63 to reset into the limiting groove 64, at this time, the side of the limiting groove 64 away from the inclined surface abuts against the surface of the top rod 63, that is, the bolt 3 can be limited, at this time, the bolt 3 cannot be reversed, avoiding loosening after long-term use, affecting normal use.

[0031] The release piece 65 included in the adjustable leakage inductance high-power high-frequency transformer includes the rotating plate 650, the rotating plate 650 is rotatably connected on the inner wall of the cavity 60, the surface of the rotating plate 650 is provided with the through-hole 651, the inner wall of the through-hole 651 abuts against the short rod 657, the surface of the short rod 657 is fixed with the abutment plate 652, the inner wall of the cavity 60 is fixed with the stabilizing frame 653, the surface of the abutment plate 652 is slidably connected with the inner side of the stabilizing frame 653, the top of the sliding plate 61 is fixed with the fixed block 655, the abutment plate 652 is provided with four groups, and the four groups of abutment plates 652 are circumferentially arrayed with the center of the sliding plate 61 as the axis, the surface of the four groups of abutment plates 652 is fixed with the pressure bar 656, one end of the pressure bar 656 away from the abutment plate 652 penetrates the mounting seat 2, the pressure bar 656 is slidably connected with the mounting seat 2, the surface of the abutment plate 652 is fixed with the spring two 654, one end of the spring two 654 away from the abutment plate 652 is fixed on the inner wall of the cavity 60, one end of the top rod 63 away from the sliding plate 61 penetrates the rotating plate 650, pulling the pressure bar 656, the pressure bar 656 drives the abutment plate 652 to move, the short rod 657 moves in the through-hole 651, the surface of the short rod 657 abuts against the inner wall of the through-hole 651, that is, the rotating plate 650 can be driven to rotate clockwise, the spring two 654 is compressed, the surface of the abutment plate 652 abuts against the inclined surface of the fixed block 655, the sliding plate 61 drives the top rod 63 to move downward, that is, the top rod 63 can be made to disengage from the limiting groove 64.

[0032] The high-frequency magnetic core 4 is mounted on the inner side of the shell 1, the surface of the high-frequency magnetic core 4 is connected with the primary coil 5, the surface of the high-frequency magnetic core 4 is connected with the secondary coil 7, the high-frequency magnetic core 4 is wound and fixed inside the primary coil 5 and the secondary coil 7, the transformer primary coil 5 and the secondary coil 7 are coupled, and then the distance between the two groups of coils is adjusted to adjust the leakage inductance value between the coils, and the leakage inductance value is reduced through the coil coupling between the primary and secondary coils to improve the efficiency and reduce the loss.

[0033] The limiting groove 64 is arranged in an inclined manner, which does not affect the forward rotation of the bolt 3. When the jacking rod 63 enters the limiting groove 64, the surface of the jacking rod 63 abuts against the side of the limiting groove 64 away from the inclined surface, thereby limiting the bolt 3.

[0034] The through hole 651 is arranged in an arc shape, and when the rotating plate 650 rotates, the short rod 657 and the abutting plate 652 can be synchronously moved radially.

[0035] The side of the fixing block 655 close to the abutting plate 652 is arranged in an inclined surface, and when the fixing block 655 abuts against the abutting plate 652, the fixing block 655 can synchronously move the sliding plate 61 and the jacking rod 63 downward.

[0036] In use, the bolt 3, the mounting seat 2 and the equipment are fixed, and when the bolt 3 abuts against the surface of the jacking rod 63 at the limit of rotation, the jacking rod 63 can move the sliding plate 61 downward, and the spring 62 is compressed. When the bolt 3 is fastened, the position of the jacking rod 63 is parallel to the limiting groove 64, and the spring 62 is released. The sliding plate 61 can drive the jacking rod 63 to reset into the limiting groove 64, and the side of the limiting groove 64 away from the inclined surface abuts against the surface of the jacking rod 63, thereby limiting the bolt 3. At this time, the bolt 3 cannot be reversed, which avoids loosening after long-term use and affects normal use. When maintenance is needed, the pressing rod 656 is pulled, the pressing rod 656 drives the abutting plate 652 to move, the short rod 657 moves in the through hole 651, the surface of the short rod 657 abuts against the inner wall of the through hole 651, thereby driving the rotating plate 650 to rotate forward, and the short rods 657 and the abutting plate 652 can synchronously move radially. At this time, the spring 654 is compressed, and the surface of the abutting plate 652 abuts against the inclined surface of the fixing block 655, thereby driving the sliding plate 61 and the jacking rod 63 to move downward. The jacking rod 63 can be separated from the limiting groove 64, and personnel can normally reverse the bolt 3, thereby facilitating disassembly and maintenance. The spring 654 is released by releasing the pressing rod 656, the rotating plate 650 is reset, the high-frequency magnetic core 4 is wound and fixed inside the primary coil 5 and the secondary coil 7, the transformer primary coil 5 and the secondary coil 7 are coupled, the distance between the two groups of coils is adjusted to adjust the leakage inductance value between the coils, the leakage inductance value is reduced through the coil coupling between the primary and secondary coils to improve the efficiency and reduce the loss, and adjusting the leakage inductance is helpful to reduce unnecessary energy loss, thereby improving the efficiency of the transformer.

Claims

1. A high-power high-frequency transformer with adjustable leakage inductance, characterized in that: Including the shell (1), the surface of the shell (1) is fixed with the mounting seat (2), the surface of the mounting seat (2) is provided with the bolt (3), the surface of the mounting seat (2) and the bolt (3) is provided with the connecting assembly (6); The connecting assembly (6) comprises: The cavity (60) is used for stabilizing the slide plate (61); The slide plate (61) is used for driving the top rod (63) to move; The top rod (63) avoids the reverse rotation of the bolt (3); The release element (65) is convenient to disassemble.

2. A high-power high-frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: The cavity (60) is arranged in the mounting seat (2), the inner wall of the cavity (60) is slidably connected with the slide plate (61), the bottom of the slide plate (61) is fixed with the spring (62), the bottom of the spring (62) is fixed on the inner wall bottom of the cavity (60), the top of the slide plate (61) is fixed with the top rod (63), the top of the top rod (63) penetrates the mounting seat (2), and the top rod (63) is slidably connected with the mounting seat (2), the surface of the bolt (3) is provided with the limiting groove (64), and the inner wall of the cavity (60) is provided with the release element (65).

3. A high power high frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: The release element (65) comprises a rotating plate (650), the rotating plate (650) is rotatably connected with the inner wall of the cavity (60), the surface of the rotating plate (650) is provided with a through hole (651), the inner wall of the through hole (651) is abutted with a short rod (657), the surface of the short rod (657) is fixed with an abutting plate (652), the inner wall of the cavity (60) is fixed with a stabilizing frame (653), the surface of the abutting plate (652) is slidably connected with the inner side of the stabilizing frame (653), and the top of the slide plate (61) is fixed with a fixed block (655).

4. A high power high frequency transformer with adjustable leakage inductance according to claim 3, characterized in that: The abutting plate (652) is provided with four groups, and the four groups of abutting plates (652) are circumferentially arranged around the center of the slide plate (61) as an axis, the surface of the four groups of abutting plates (652) is fixed with a pressing rod (656), one end of the pressing rod (656) away from the abutting plate (652) penetrates the mounting seat (2), the pressing rod (656) is slidably connected with the mounting seat (2), the surface of the abutting plate (652) is fixed with a spring (654), and one end of the spring (654) away from the abutting plate (652) is fixed on the inner wall of the cavity (60).

5. A high power high frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: The inner side of the shell (1) is provided with a high-frequency magnetic core (4), the surface of the high-frequency magnetic core (4) is connected with a primary coil (5), and the surface of the high-frequency magnetic core (4) is connected with a secondary coil (7).

6. A high power high frequency transformer with adjustable leakage inductance according to claim 2, characterized in that: The limiting groove (64) is arranged in an inclined manner.

7. A high power high frequency transformer with adjustable leakage inductance according to claim 3, characterized in that: The through hole (651) is arranged in an arc shape.

8. A high power high frequency transformer with adjustable leakage inductance according to claim 3, characterized in that: One end of the top rod (63) away from the slide plate (61) penetrates the rotating plate (650), and one side of the fixed block (655) close to the abutting plate (652) is arranged in an inclined manner.

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