Common mode inductor with coil fixing structure

Abstract

The utility model relates to the field of common-mode inductors, discloses a common-mode inductor with a coil fixing structure, and solves the problems that a trapezoidal connecting block is easy to be clamped in a groove, the trapezoidal connecting block can be taken out only by pressing the trapezoidal connecting block when the trapezoidal connecting block needs to be disassembled, and the operation is inconvenient. The common-mode inductor with the coil fixing structure solves the problem that the common-mode inductor with the coil fixing structure is troublesome to disassemble only by pressing one by one in the pressing process due to the fact that trapezoidal connecting blocks are arranged in grooves in the prior art, and comprises a shell, a coil arranged on the inner side of the shell and a limiting mechanism arranged between the shell and the coil. By arranging the limiting mechanism and the rotating mechanism, the limiting mechanism can be limited and pulled by installing the limiting mechanism and then rotating the rotating mechanism, and disassembly can be performed by performing reverse operation during disassembly, so that the purpose of simpler disassembly is achieved.

Description

Technical Field

[0001] The utility model relates to the field of common mode inductors, in particular to a common mode inductor with a coil fixing structure. Background Art

[0002] Common-mode inductance refers to an inductor device used to filter out common-mode interference in a circuit. In a circuit, common-mode signals caused by various factors will be transmitted to various parts of the circuit, thereby affecting the working stability and performance of the circuit.

[0003] The publication number is CN218849244U, a common-mode inductor with a coil fixing structure, including a base plate, a support block is provided in the middle part above the base plate, a protective shell is provided above the support block, a magnetic core is provided in the protective shell, and a coil is wound around the outside of the magnetic core. In order to facilitate the fixing of the coil, the existing common-mode inductor mainly adopts a trapezoidal connecting block that is pushed into the groove of the fixing plate to be stuck to complete the limiting. Although the trapezoidal connecting block is easily stuck in the groove, when it needs to be disassembled, it is necessary to press the trapezoidal connecting block to take out the trapezoidal connecting block, but the trapezoidal connecting block is arranged in the groove, and it is very troublesome to press one by one to complete the disassembly. Utility Model Content

[0004] The utility model aims to provide a common mode inductor with a coil fixing structure. The device is used to work, thereby solving the problem that the trapezoidal connecting blocks are arranged inside the grooves and need to be pressed one by one to complete the disassembly, which is very troublesome.

[0005] To achieve the above object, the utility model provides the following technical solution: a common mode inductor with a coil fixing structure, comprising a housing, a coil arranged inside the housing, a limiting mechanism arranged between the housing and the coil, and a rotating mechanism arranged on one side of the limiting mechanism;

[0006] The limiting mechanism includes a first support plate arranged between the outer shell and the coil, a limiting groove is opened on the inner wall of the first support plate, a first limiting hole is arranged inside the first support plate, a limiting rod is arranged inside the first limiting hole, one end of the limiting rod is fixedly connected with the first baffle, a second limiting hole is arranged inside the other end of the limiting rod, a first pull rod is arranged inside the second limiting hole, and the lower end of the first pull rod is fixedly connected with the second pull rod.

[0007] Preferably, the first limiting holes are equidistantly distributed inside the first supporting plate, and the inner surface of the first limiting holes fits with the outer surface of the limiting rod.

[0008] Preferably, the width of the second limiting hole is greater than the width of the first pull rod.

[0009] Preferably, the outer surface of the first baffle is in contact with the inner surface of the shell.

[0010] Preferably, the rotating mechanism includes a second baffle fixedly connected to the second pull rod on the side close to the second limiting hole, a guide groove is connected on the inner wall of the outer shell on the side close to the second limiting hole, a guide rod is arranged on the inner side of the guide groove, the guide rod and the second baffle are connected in a fixed manner, the internal thread of the second baffle is connected to a threaded rod, and a threaded groove is arranged inside the first support plate.

[0011] Preferably, the guide groove and the guide rod are matched in a clearance fit, and the appearance structure of the guide groove is spiral, and the appearance structure shape of the guide rod is cylindrical.

[0012] Preferably, the appearance structure of the second baffle is cylindrical, and the outer side surface of the second baffle is in contact with the inner side surface of the shell.

[0013] The utility model proposes a common-mode inductor with a coil fixing structure. By setting a limiting mechanism and a rotating mechanism, the limiting mechanism is installed, and then the rotating mechanism is rotated to limit and pull the limiting mechanism. When disassembling, the reverse direction operation can be performed. Compared with the prior art, it is not necessary to press one by one when disassembling, thereby achieving the purpose of making disassembly simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the housing of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the housing of the utility model when viewed from above;

[0017] Figure 4 This is a schematic diagram of the rear cross-sectional structure of the housing of the utility model;

[0018] Figure 5 For the utility model Figure 4 Schematic diagram of the structure at A in the middle;

[0019] Figure 6 For the utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0020] In the figure: 1. shell; 2. coil; 3. limit mechanism; 4. rotating mechanism; 301. first support plate; 302. limit groove; 303. first limit hole; 305. limit rod; 306. first baffle plate; 307. second limit hole; 308. first pull rod; 309. second pull rod; 401. second baffle plate; 402. guide groove; 403. guide rod; 404. threaded rod; 405. threaded groove. Specific implementation plan

[0021] 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.

[0022] See also Figure 1-Figure 6 The utility model provides a technical solution: a common mode inductor with a coil fixing structure, comprising a housing 1, a coil 2 is arranged inside the housing 1, a limiting mechanism 3 is arranged between the housing 1 and the coil 2, and a rotating mechanism 4 is arranged on one side of the limiting mechanism 3;

[0023] The limiting mechanism 3 includes a first support plate 301 arranged between the housing 1 and the coil 2, a limiting groove 302 is provided on the inner wall of the first support plate 301, a first limiting hole 303 is provided inside the first support plate 301, a limiting rod 305 is provided inside the first limiting hole 303, the first limiting holes 303 are equidistantly distributed inside the first support plate 301, and the inner surface of the first limiting hole 303 is in contact with the outer surface of the limiting rod 305, so that the limiting rod 305 will not shake inside the first limiting hole 303, and the limiting rod 305 A first baffle 306 is fixedly connected at one end, a second limiting hole 307 is arranged inside the other end of the limiting rod 305, a first pull rod 308 is arranged on the inner side of the second limiting hole 307, a second pull rod 309 is fixedly connected to the lower end of the first pull rod 308, the width of the second limiting hole 307 is greater than the width of the first pull rod 308, so that the first pull rod 308 can move on the inner side of the second limiting hole 307, the outer surface of the first baffle 306 is in contact with the inner surface of the outer shell 1, so that the first baffle 306 can move on the inner side of the outer shell 1.

[0024] The rotating mechanism 4 includes a second baffle 401 fixedly connected to the second pull rod 309 on the side close to the second limiting hole 307, and a guide groove 402 is connected to the inner wall of the shell 1 on the side close to the second limiting hole 307, and a guide rod 403 is arranged on the inner side of the guide groove 402, and the matching mode of the guide groove 402 and the guide rod 403 is a clearance match, and the appearance structure of the guide groove 402 is spiral, and the appearance structure shape of the guide rod 403 is cylindrical, so that the guide rod 403 can move backward along the trajectory of the guide groove 402 when rotating, and the connection mode of the guide rod 403 and the second baffle 401 is a fixed connection, the internal thread of the second baffle 401 is connected to the threaded rod 404, and the interior of the first support plate 301 is provided with a threaded groove 405, the appearance structure of the second baffle 401 is cylindrical, and the outer side surface of the second baffle 401 fits with the inner side surface of the shell 1, so that the second baffle 401 can rotate on the inner side of the shell 1.

[0025] When the coil 2 needs to be fixed, the limiting rod 305 is aligned with the first limiting hole 303, the first baffle 306 is pushed to move backward, and the second baffle 401 is rotated to drive the second pull rod 309 and the first pull rod 308 to rotate, so that the first pull rod 308 moves to the inner side of the second limiting hole 307. Because the guide groove 402 and the guide rod 403 are matched in a clearance fit, and the appearance structure of the guide groove 402 is spiral, and the appearance structure of the guide rod 403 is cylindrical, the second baffle 401 will move backward when it is rotated, pulling the first pull rod 308 and the limiting rod 305 to move backward, so that the first baffle 306 is more closely attached to the outside of the coil 2, and the threaded rod 404 is rotated to move to the inner side of the threaded groove 405, so that the second baffle 401 is limited, and the fixation of the coil 2 is completed.

[0026] When disassembly is required, rotate the threaded rod 404 to move out of the inner side of the thread groove 405, and rotate the second baffle 401 to move in the opposite direction, so that the first pull rod 308 loses the limit on the limit rod 305, and then the first baffle 306 can be disassembled, so that there is no need to press one by one during disassembly, making disassembly easier.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A common mode inductor with a coil fixing structure, comprising a housing (1), a coil (2) being arranged inside the housing (1), characterized in that: A limiting mechanism (3) is provided between the housing (1) and the coil (2), and a rotating mechanism (4) is provided on one side of the limiting mechanism (3); The limiting mechanism (3) comprises a first support plate (301) arranged between the housing (1) and the coil (2); a limiting groove (302) is provided on the inner wall of the first support plate (301); a first limiting hole (303) is provided inside the first support plate (301); a limiting rod (305) is provided inside the first limiting hole (303); one end of the limiting rod (305) is fixedly connected to a first baffle (306); a second limiting hole (307) is provided inside the other end of the limiting rod (305); a first pull rod (308) is provided inside the second limiting hole (307); and the lower end of the first pull rod (308) is fixedly connected to a second pull rod (309).

2. The common mode inductor with a coil fixed structure according to claim 1, characterized in that: The first limiting holes (303) are evenly distributed inside the first support plate (301), and the inner surface of the first limiting hole (303) is in contact with the outer surface of the limiting rod (305).

3. The common mode inductor with a coil fixed structure according to claim 1, characterized in that: The width of the second limiting hole (307) is greater than the width of the first pull rod (308).

4. The common mode inductor with a coil fixing structure according to claim 1, characterized in that: The outer surface of the first baffle (306) is in contact with the inner surface of the housing (1).

5. The common mode inductor with a coil fixed structure according to claim 1, characterized in that: The rotating mechanism (4) includes a second baffle (401) fixedly connected to the second pull rod (309) on the side close to the second limiting hole (307); a guide groove (402) is connected to the inner wall of the shell (1) on the side close to the second limiting hole (307); a guide rod (403) is arranged on the inner side of the guide groove (402); the guide rod (403) and the second baffle (401) are connected in a fixed manner; the internal thread of the second baffle (401) is connected to a threaded rod (404); and the first support plate (301) is provided with a threaded groove (405) inside.

6. The common mode inductor with a coil fixing structure according to claim 5, characterized in that: The guide groove (402) and the guide rod (403) are matched in a clearance fit, and the appearance structure of the guide groove (402) is spiral, and the appearance structure shape of the guide rod (403) is cylindrical.

7. The common mode inductor with a coil fixing structure according to claim 5, characterized in that: The second baffle plate (401) has a cylindrical appearance, and the outer side surface of the second baffle plate (401) fits the inner side surface of the outer shell (1).

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