Common mode inductor convenient for winding

Abstract

The utility model belongs to the technical field of common-mode inductors, and particularly relates to a common-mode inductor convenient for winding, which comprises two wire wrapping rods, the wire wrapping rods are cylinders, enameled wires are wound on the outer side walls of the two wire wrapping rods, connecting grooves penetrating through the interiors of the wire wrapping rods are formed in the side walls of the two wire wrapping rods, two magnetic cores are arranged outside the wire wrapping rods, and the two magnetic cores are arranged in the connecting grooves. The two magnetic cores are both in a U shape, the two ends of the two magnetic cores are inserted into the adjacent connecting grooves in the two wire wrapping rods respectively, and fixing assemblies for fixing the magnetic cores into the wire wrapping rods are arranged in the two magnetic cores. According to the utility model, the enameled wire is wound on the side wall of the cylindrical wire wrapping rod, so that the enameled wire can be wound through a mechanical automatic winding machine, and the production efficiency can be greatly improved; the integral structure of the common mode inductor can effectively improve the filtering effect of the common mode inductor and reduce the production cost of products; the problem that an existing common-mode inductor enameled wire winding process is complex is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of common mode inductance, especially a common mode inductance convenient to winding. BACKGROUND

[0002] Common mode inductance, also known as common mode choke, is often used in computer switching power supply to filter common mode electromagnetic interference signals.

[0003] Through the search, the patent of China with the announcement number CN215377109U discloses a kind of common mode inductance, including base, multiple groups of pinhole groups are arranged on it, multiple groups of pinhole groups are sequentially arranged at the four corners of the base;Each pinhole group includes multiple pinholes, multiple pinholes are sequentially arranged;Shell, set on the base, the middle part of the shell is provided with hollow cavity to form annular structure;Plugboard, along the longitudinal direction is set in the hollow cavity of the shell, the hollow cavity is divided into two independent first chamber and second chamber;First coil, winding on the shell, and corresponding to the first chamber;Second coil, winding on the shell, and corresponding to the second chamber;Pin, both ends of the first coil are wound with the pin, both ends of the second coil are wound with the pin.Solve the technical problem that pin pitch and row distance are not adjustable in the prior art.

[0004] In the above prior art solution, the shell is hollow cylindrical, and the enameled wire is wound on the side wall of the shell. In actual production and use, since the shell is hollow cylindrical, the enameled wire needs to pass through the hole on the shell repeatedly and wind around the side wall of the shell once, so as to uniformly wind the enameled wire on the side wall of the shell. The winding process is complicated and the production efficiency is low. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a kind of common mode inductance convenient to winding, by winding enameled wire on the side wall of cylindrical wire winding rod, it can be wound by mechanical automatic winding machine, can greatly improve production efficiency.

[0006] The technical solution for achieving the purpose of the utility model is as follows: a common mode inductance convenient to winding, including two wire winding rods, the wire winding rod is a circular column, the outer side wall of the two wire winding rods is wound with enameled wire, a connecting groove penetrating the inside of the wire winding rod is formed on the side wall of the two wire winding rods, two magnetic cores are arranged outside the wire winding rod, the two magnetic cores are in the shape of "U", the two ends of the two magnetic cores are inserted into the inside of the connecting grooves close to each other on the two wire winding rods, and a fixing assembly for fixing the magnetic core inside the wire winding rod is arranged in the inside of the two magnetic cores.

[0007] In some embodiments, the fixing assembly includes;

[0008] The sliding groove is a "U"-shaped groove, two moving rods are arranged on the two sides of the sliding groove, and two containing grooves are arranged at the two ends of the sliding groove.

[0009] The two clamping blocks are arranged in the containing grooves, the top end of the clamping block extends outward through the inside of the sliding groove, and the bottom wall surface of the two clamping blocks is in contact with the inclined side wall of the extrusion block.

[0010] In some embodiments, the fixing assembly further comprises;

[0011] The two pressing plates are arranged in the sliding groove, the far ends of the two pressing plates are fixedly installed on the side walls of the two moving rods, a moving screw is screwedly installed on the side wall of the magnetic core, one end of the moving screw extends into the sliding groove, a connecting clamping groove is formed in the side wall of the moving screw, and the close ends of the two pressing plates are arranged in the connecting clamping groove.

[0012] In some embodiments, the side wall of the two extrusion blocks is inclined.

[0013] In some embodiments, the inner side wall of the connecting groove is fixedly installed with a positioning block at the middle position.

[0014] In some embodiments, the inner side wall of the connecting groove is fixedly installed with a positioning block at the middle position.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] Firstly, the utility model discloses a round column body constituting a wire wrapping rod, can automatically wrap the enameled wire on the side wall of the wire wrapping rod through a machine, inserts the magnetic core into the inside of the wire wrapping rod, and the production of the common mode inductor can be completed, thereby improving the production efficiency; the enameled wire is wrapped on the side wall of the cylindrical wire wrapping rod through a machine, and the production efficiency can be greatly improved. The short side frame size is relatively short, and the purpose is to reduce the overall space of the common mode inductor as much as possible. The overall structure of the utility model can effectively improve the filtering effect of the common mode inductor and reduce the production cost of the product, and the problem that the enameled wire winding process of the common mode inductor is complex is solved.

[0017] Secondly, the utility model discloses, through the rotation of the moving screw, the moving screw is moved to the inside of the sliding groove, and the connecting groove moves synchronously along with the moving screw, and the pressing plate thus pushes the sliding groove to move to the inside of the containing groove, and the extrusion block thus pushes the clamping block to move upwards, makes the clamping block and the inside wall of the connecting groove fit, guarantees the position stability of the magnetic core. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be explained further below in combination with the drawings and examples:

[0019] Fig. 1 It is the whole structure stereogram of the utility model;

[0020] Fig. 2 It is the inside structure diagram of the sliding groove of the utility model;

[0021] Fig. 3 It is the inside structure diagram of the magnetic core of the utility model.

[0022] Mark explanation:

[0023] 1, the wire-wrapped rod;2, the enameled wire;3, the connecting groove;4, the locating block;5, the magnetic core;6, the sliding groove;7, the containing groove;8, the moving rod;9, the extrusion block;10, the pressing plate;11, the moving screw;12, the connecting groove;13, the locating groove;14, the clamping block. Specific implementation

[0024] The utility model will be explained further below in combination with the drawings and examples:

[0025] The utility model discloses a kind of common mode inductors of convenient winding, and the technical scheme of the utility model is:

[0026] As Figs. 1-3The utility model provides a kind of common mode inductance of facilitating wire winding, including two package wire rods 1, package wire rod 1 is circular cylinder, and the outer side wall of two package wire rods 1 is wound with enameled wire 2, and the sidewall of two package wire rods 1 is all set up with the connecting groove 3 that passes through the inside of package wire rod 1, and the inner side wall of two connecting grooves 3 middle position is all fixedly installed with locating block 4, and the outside of package wire rod 1 is provided with two magnetic cores 5, two magnetic cores 5 all are in the shape of 'U', and the two ends of two magnetic cores 5 are inserted respectively in the inside of two connecting grooves 3 similar on package wire rod 1;Through the circular cylinder to form package wire rod 1, enameled wire 2 can be automatically wound on the sidewall of package wire rod 1 by machine, and the production of the common mode inductance can be completed by inserting magnetic core 5 into the inside of package wire rod 1, to improve production efficiency.

[0027] As Figs. 1-3As shown, in order to ensure the position stability of the connecting groove 3, the inner part of each of the two magnetic cores 5 is provided with a fixing assembly, which comprises a sliding groove 6, a containing groove 7, a moving rod 8, a pressing plate 10, a moving screw 11 and a clamping block 14; the sliding groove 6 is arranged in the inner part of the magnetic core 5 and is in the shape of a “U”-shaped groove; there are two moving rods 8, which are arranged on the two sides of the sliding groove 6 respectively; there are two pressing plates 10, which are arranged in the inner part of the sliding groove 6; the two ends of the two pressing plates 10, which are away from each other, are fixedly installed on the side walls of the two moving rods 8 respectively; there are two containing grooves 7, which are arranged at the two ends of the sliding groove 6 respectively; the inner part of each of the two containing grooves 7 is provided with an extrusion block 9, which is fixedly installed on the side wall of the moving rod 8; the side wall of each of the two extrusion blocks 9 is inclined; there are two clamping blocks 14, which are arranged in the inner part of the containing groove 7; the top end of the clamping block 14 extends outwardly through the inner part of the sliding groove 6; the bottom wall surface of the clamping block 14 is in contact with the inclined side wall of the extrusion block 9; the moving screw 11 is threadedly installed on the side wall of the magnetic core 5 and one end of the moving screw 11 extends into the inner part of the sliding groove 6; a connecting clamping groove 12 is arranged on the side wall of the moving screw 11 and the two ends of the two pressing plates 10, which are close to each other, are arranged in the connecting clamping groove 12; by rotating the moving screw 11, the moving screw 11 is moved into the inner part of the sliding groove 6, the connecting clamping groove 12 is moved synchronously with the moving screw 11, the pressing plate 10 pushes the sliding groove 6 to move into the inner part of the containing groove 7, the extrusion block 9 pushes the clamping block 14 to move upwardly, so that the clamping block 14 is in contact with the inner side wall of the connecting groove 3, thereby ensuring the position stability of the magnetic core 5; the inner side wall of the connecting groove 3 is provided with a positioning groove 13 corresponding to the clamping block 14; by pushing the clamping block 14 to extend outwardly through the containing groove 7 and by the positioning groove 13 corresponding to the clamping block 14, the clamping block 14 can extend into the inner part of the positioning groove 13, so that the clamping block 14 is clamped in the inner part of the wire-wound rod 1, thereby further ensuring the position stability of the magnetic core 5; since the positioning groove 13 is arranged on one side only, when the extrusion block 9 no longer pushes the clamping block 14, the position of the common mode inductor is adjusted, the clamping block 14 can be separated from the inner part of the positioning groove 13 due to the influence of gravity, so that the common mode inductor can be conveniently disassembled.

[0028] The specific working method is: through the circular cylinder constituting the package line rod 1, the enameled wire 2 can be automatically wound on the side wall of the package line rod 1 through a machine, the magnetic core 5 is inserted into the inside of the package line rod 1, and the production of the common mode inductor is completed. The enameled wire 2 is wound on the side wall of the cylindrical package line rod 1, and can be wound by a mechanical automatic winding machine. The common mode inductor is changed from a conventional ring to a rectangle, and the long side is a cylinder. Such a structure can change manual winding to automatic winding machine winding, and can greatly improve the production efficiency. The short side frame size is short, and the purpose is to reduce the overall space of the common mode inductor as much as possible. The overall structure of the utility model can effectively improve the filtering effect of the common mode inductor and reduce the production cost of the product.

[0029] The technical means disclosed by the utility model scheme is not limited to the technical means disclosed by the above technical means, and also includes technical solutions composed of equivalent replacement of the above technical features. The unfinished matters of the utility model belong to the common knowledge of the person skilled in the art.

Claims

1. A common mode inductor with easy winding comprising two wire-wound rods (1), characterized in that: The package line rod (1) is a circular cylinder, the outer side wall of the two package line rods (1) is wound with enameled wire (2), the side wall of the two package line rods (1) is provided with a connecting groove (3) penetrating the inside of the package line rod (1), the outside of the package line rod (1) is provided with two magnetic cores (5), the two magnetic cores (5) are both in the shape of "U", the two ends of the two magnetic cores (5) are respectively inserted into the inside of the connecting grooves (3) close to each other on the two package line rods (1), and the inside of the two magnetic cores (5) is provided with a fixing assembly for fixing the magnetic core (5) in the package line rod (1).

2. The common mode inductor of claim 1, wherein: The fixing assembly comprises; a sliding groove (6), a moving rod (8) and a containing groove (7), the sliding groove (6) is arranged in the inside of the magnetic core (5) and is in the shape of "U", there are two moving rods (8), the two moving rods (8) are arranged on the two sides of the sliding groove (6), there are two containing grooves (7), the two containing grooves (7) are arranged at the two ends of the sliding groove (6), and the inside of the two containing grooves (7) is provided with an extrusion block (9) fixedly installed on the side wall of the two moving rods (8); a clamping block (14), there are two clamping blocks (14), the two clamping blocks (14) are arranged in the inside of the containing groove (7), the top end of the clamping block (14) extends outwardly through the inside of the sliding groove (6), and the bottom wall surface of the two clamping blocks (14) is attached to the inclined side wall of the extrusion block (9).

3. The common mode inductor of claim 1, wherein: The fixing assembly further comprises; a pressing plate (10) and a moving screw rod (11), there are two pressing plates (10), the two pressing plates (10) are arranged in the inside of the sliding groove (6), the ends of the two pressing plates (10) away from each other are fixedly installed on the side walls of the two moving rods (8), the moving screw rod (11) is screwedly installed on the side wall of the magnetic core (5) and extends to the inside of the sliding groove (6), a connecting clamping groove (12) is formed in the side wall of the moving screw rod (11), and the ends of the two pressing plates (10) close to each other are both located in the connecting clamping groove (12).

4. The common mode inductor of claim 2, wherein: The side wall of the two extrusion blocks (9) is inclined.

5. The common mode inductor of claim 1, wherein: The middle positions of the inner side walls of the two connecting grooves (3) are fixedly installed with a positioning block (4).

6. The common mode inductor of claim 1, wherein: The inner side wall of the connecting groove (3) is provided with a positioning groove (13) corresponding to the clamping block (14).

Images