High-power high-frequency transformer with adjustable leakage inductance

Abstract

The utility model discloses a high-power high-frequency transformer with adjustable leakage inductance, which comprises the following components: a main body assembly which comprises a housing, a primary coil which is fixed in one end of the housing, a secondary coil which is fixed in the other end of the housing, and a high-frequency magnetic core which is fixed in the middle of the primary coil and the secondary coil; the two limiting assemblies are located on the two sides of the shell, a wire is fixed in the bottom end of the primary coil, a wire is fixed in the bottom end of the secondary coil, the number of the wires is eight, guide plates are fixed to the surfaces of the two sides of the shell, guide holes are formed in the middles of the guide plates, and heat dissipation holes are formed in the two sides of the shell. The utility model relates to an inverter and an ultrasonic generator, and aims to solve the problems that an existing inverter and an existing ultrasonic generator are in LC or LCL loop topology of a high-frequency transformer, a resonant inductor and a capacitor, when the products are produced, the product cost is high, the market competitiveness is not strong, and an existing product is large in size and needs to consume more cost in assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency transformers, in particular to a high-power high-frequency transformer with adjustable leakage inductance. Background Art

[0002] A high-frequency transformer is a transformer specially designed for high-frequency AC signals. Compared with ordinary low-frequency transformers, high-frequency transformers are characterized by higher operating frequencies. They are widely used in communications, power conversion, electronic equipment, heating and medical fields. Through the transformer's power conversion and power transmission, high-frequency transformers play a key role in different fields.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing inverters and ultrasonic generators are composed of a high-frequency transformer + resonant inductor + capacitor, which is an LC or LCL circuit topology. When producing these products, not only are the product costs high and the market competitiveness is not strong, but the existing products are also large in size and require more costs in assembly. Utility Model Content

[0005] Technical solutions to be solved

[0006] The purpose of the utility model is to provide a high-power high-frequency transformer with adjustable leakage inductance to solve the problem raised in the above background technology that the existing inverter and ultrasonic generator are composed of a high-frequency transformer + resonant inductor + capacitor such as an LC or LCL loop topology. When producing these products, not only are the product costs high and the market competitiveness is not strong, but the existing products are also large in size and require more costs in assembly.

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is a high-power high-frequency transformer with adjustable leakage inductance, comprising:

[0010] The main body component includes a housing, a primary coil fixed inside one end of the housing, a secondary coil fixed inside the other end of the housing, and a high-frequency magnetic core fixed in the middle of the primary coil and the secondary coil;

[0011] The limit assembly is provided in two groups and is located on both sides of the shell.

[0012] Furthermore, a wire is fixed inside the bottom end of the primary coil, a wire is fixed inside the bottom end of the secondary coil, and eight groups of wires are provided. Guide plates are fixed on the surfaces of both sides of the shell, and a guide hole is opened in the middle of the guide plate.

[0013] Furthermore, the limiting assembly includes an installation frame symmetrically fixed on both sides of the shell, a placement groove opened inside the installation frame, a mounting hole opened at one end of the placement groove, a fixing plate fixed at the other end of the placement groove, a spring fixed inside the installation hole and a clamping plate fixed on the surface of the spring.

[0014] Furthermore, two groups of the installation frames are provided, and four groups of installation holes are opened inside any group of the installation frames.

[0015] Furthermore, limiting grooves are provided inside the two sides of the top of the installation frame, a movable plate is hingedly connected to the top of the installation frame, and limiting blocks are fixed at both ends of the inner side of the movable plate;

[0016] Wherein, the outer surface of the limiting block is fitted with the limiting groove.

[0017] Furthermore, a movable plate is hingedly connected to the outside of the movable plate, and a limiting hole is provided in the middle of the bottom end of the movable plate.

[0018] Furthermore, connection frames are fixed on both sides of the upper surface of the shell, and there are two groups of connection frames in total. An elastic rope is fixed inside any one group of the connection frames, and a lock buckle is fixed at the bottom end of the elastic rope.

[0019] Beneficial Effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. The utility model couples the primary coil and the secondary coil of the transformer by setting the primary coil, the secondary coil and the wire, and then adjusts the leakage inductance between the coils by adjusting the distance between the two sets of coils, so as to meet the transformer to exert the maximum power and realize the integration of transformer + resonant inductor, and the inductance can be adjusted. This solution not only reduces the cost of customers, but also integrates the L in the LC loop, that is, the inductor, into the transformer itself. Moreover, the transformer of this design reduces the leakage inductance through the coupling of the primary and secondary coils, thereby improving efficiency and reducing losses.

[0022] 2. Based on beneficial effect 1, with the use of the limit assembly, when the product is transported, the wire can be clamped inside the clamp and the fixed plate to avoid accidental damage to the top of the wire and affect the normal connection and use of the wire. And with the use of the movable plate and the lock, when the product is fixed, the movable plate can be opened from the outside of the heat dissipation hole without affecting the normal heat dissipation of the product.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is the appearance diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the position of the additional limiter assembly of the utility model;

[0027] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0028] Figure 4 It is a structural diagram of the limit assembly of the utility model.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 11. Shell; 12. Guide plate; 13. Guide hole; 14. Primary coil; 15. Secondary coil; 16. High-frequency magnetic core; 17. Wire;

[0031] 21. Installation frame; 211. Limiting groove; 22. Movable plate; 221. Limiting block; 23. Moving plate; 24. Limiting hole; 241. Connecting frame; 242. Elastic rope; 243. Locking buckle; 25. Placement groove; 26. Installation hole; 27. Spring; 28. Clamp; 29. ​​Fixed plate. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0034] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Embodiment 1

[0036] See also Figure 1-Figure 2As shown, this embodiment is a high-power high-frequency transformer with adjustable leakage inductance, comprising:

[0037] The main body assembly includes a housing 11, a primary coil 14 fixed inside one end of the housing 11, a secondary coil 15 fixed inside the other end of the housing 11, and a high-frequency magnetic core 16 fixed in the middle of the primary coil 14 and the secondary coil 15;

[0038] The limit assembly is provided in two groups and is located on both sides of the housing 11.

[0039] A wire 17 is fixed inside the bottom of the primary coil 14, and a wire 17 is fixed inside the bottom of the secondary coil 15. There are eight groups of wires 17 in total. Guide plates 12 are fixed to the surfaces of both sides of the housing 11, and a guide hole 13 is opened in the middle of the guide plate 12.

[0040] The wire 17 is provided to electrically connect the device to other equipment, the guide plate 12 is provided to fix the device to a desired position, and the guide hole 13 is used to fix with screws, so that the device is fixed to a desired position;

[0041] Working principle:

[0042] First, the high-frequency magnetic core 16 is wound and fixed inside the primary coil 14 and the secondary coil 15. After the primary coil 14 and the secondary coil 15 are fixed inside the housing 11 according to the actual required distance, the wire 17 can be connected with other devices. After successful debugging, the screw is passed through the guide hole 13 to fix the guide plate 12 at the desired position, thereby fixing the device at the desired position;

[0043] This step reduces customer costs by integrating the L in the LC loop, i.e. the inductor, into the transformer itself.

[0044] Embodiment 2

[0045] See also Figure 1-Figure 4 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0046] The limiting assembly includes a mounting frame 21 symmetrically fixed on both sides of the housing 11, a placement groove 25 provided inside the mounting frame 21, a mounting hole 26 provided at one end of the placement groove 25, a fixing plate 29 fixed at the other end of the placement groove 25, a spring 27 fixed inside the mounting hole 26, and a clamping plate 28 fixed on the surface of the spring 27;

[0047] The placement groove 25 is used to store the wire 17, and the installation hole 26 is used to receive and install the spring 27. Under the elastic force of the spring 27, a pushing force is applied to the clamping plate 28, which can increase the distance between the clamping plate 28 and the fixing plate 29, thereby fixing the wire 17 on the inner side of the clamping plate 28 and the fixing plate 29;

[0048] There are two groups of mounting frames 21, and any group of mounting frames 21 has four groups of mounting holes 26 opened inside.

[0049] Two sets of mounting frames 21 are provided, respectively used to store the wires 17 on the primary coil 14 and the secondary coil 15, and the mounting holes 26 can store each wire 17;

[0050] Limiting grooves 211 are provided inside the two sides of the top of the installation frame 21, a movable plate 22 is hingedly connected to the top of the installation frame 21, and limiting blocks 221 are fixed at both ends of the inner side of the movable plate 22;

[0051] The outer surface of the limiting block 221 fits the limiting groove 211;

[0052] By fixing the limiting block 221 in the limiting groove 211, the movable plate 22 can be fixed on the top of the installation frame 21;

[0053] The movable plate 22 is hingedly connected to a moving plate 23 on the outside, and a limiting hole 24 is provided in the middle of the bottom end of the moving plate 23;

[0054] The movable plate 23 is used to limit the wire 17 inside the installation frame 21, and the limiting hole 24 is used to fix the movable plate 23 when it is opened;

[0055] Connecting frames 241 are fixed on both sides of the upper surface of the housing 11. There are two groups of connecting frames 241. An elastic rope 242 is fixed inside any group of connecting frames 241. A lock buckle 243 is fixed at the bottom end of the elastic rope 242.

[0056] The connecting frame 241 is used to receive and install the elastic rope 242 and the lock buckle 243. When the elastic rope 242 is set, the lock buckle 243 can be stretched so that the lock buckle 243 is fixed inside the limiting hole 24.

[0057] Working principle:

[0058] When fixing the wire 17;

[0059] After applying an upward force to the movable plate 23 so that the movable plate 23 and the movable plate 22 are in the same horizontal line, an upward flipping force is applied to the movable plate 22 so that the movable plate 22 and the mounting frame 21 are in a vertical state, the lock buckle 243 is taken out from the inside of the connecting frame 241, and the lock buckle 243 is pulled under the action of the elastic rope 242 so that the lock buckle 243 is fixed in the inside of the limiting hole 24. Then, under the action of the spring 27, a pushing force is applied to the clamping plate 28 to increase the distance between the clamping plate 28 and the fixed plate 29. After placing the wire 17 in the middle of the placement groove 25, cancel the force applied by the clamping plate 28, clamp the wire 17 between the clamping plate 28 and the fixed plate 29, take out the lock buckle 243 from the inside of the limiting hole 24, and after the lock buckle 243 is locked in the inside of the connecting frame 241, apply a downward force to the movable plate 22 so that the movable plate 22 fits the installation frame 21, and then apply a downward force to the movable plate 23 so that the movable plate 23 fits the installation frame 21. At this time, the limiting block 221 is fixed in the limiting groove 211;

[0060] This step prevents accidental damage to the top of the wire 17 , which would affect the normal connection and use of the wire 17 .

[0061] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded 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 utility model shall be included in the protection scope of the utility model.

Claims

1. A high-power high-frequency transformer with adjustable leakage inductance, characterized in that: include: The main body component comprises a housing (11), a primary coil (14) fixed inside one end of the housing (11), a secondary coil (15) fixed inside the other end of the housing (11), and a high-frequency magnetic core (16) fixed in the middle of the primary coil (14) and the secondary coil (15); The limiting components are arranged in two groups and are located on both sides of the housing (11).

2. A high-power high-frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: A conductive wire (17) is fixed inside the bottom end of the primary coil (14), and a conductive wire (17) is fixed inside the bottom end of the secondary coil (15). A total of eight groups of conductive wires (17) are provided. Guide plates (12) are fixed on both side surfaces of the housing (11), and a guide hole (13) is provided in the middle of the guide plate (12).

3. A high-power high-frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: The limit assembly comprises a mounting frame (21) symmetrically fixed on both sides of the housing (11), a placement groove (25) provided inside the mounting frame (21), a mounting hole (26) provided at one end of the placement groove (25), a fixing plate (29) fixed at the other end of the placement groove (25), a spring (27) fixed inside the mounting hole (26), and a clamping plate (28) fixed on the surface of the spring (27).

4. A high-power high-frequency transformer with adjustable leakage inductance according to claim 3, characterized in that: There are two groups of the installation frames (21) in total, and any group of the installation frames (21) is provided with four groups of installation holes (26) inside.

5. The high-power high-frequency transformer with adjustable leakage inductance according to claim 3, characterized in that: Limiting grooves (211) are provided inside the two sides of the top of the installation frame (21), a movable plate (22) is hingedly connected to the top of the installation frame (21), and limiting blocks (221) are fixed at both ends of the inner side of the movable plate (22); The outer surface of the limiting block (221) is fitted with the limiting groove (211).

6. A high-power high-frequency transformer with adjustable leakage inductance according to claim 5, characterized in that: The movable plate (22) is hingedly connected to a moving plate (23) on the outside, and a limiting hole (24) is provided in the middle of the bottom end of the moving plate (23).

7. A high-power high-frequency transformer with adjustable leakage inductance according to claim 1, characterized in that: Connecting frames (241) are fixed on both sides of the upper surface of the shell (11), and two groups of connecting frames (241) are provided. An elastic rope (242) is fixed inside any one group of connecting frames (241), and a lock buckle (243) is fixed at the bottom end of the elastic rope (242).

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