Common mode inductor with anti-loose coil
By designing a clamping mechanism on the coil, including components such as annular sheet, clamping groove and drawstring, the problem of the coil being easily loosened after winding on the annular core is solved, and the effective fixation and stability of the coil is achieved.
Patent Information
- Application Number
- CN202421326765.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-12
Smart Images
Figure CN222562422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of common mode inductors, in particular to a common mode inductor for preventing coils from loosening. Background Art
[0002] Common-mode inductors are electronic components used to suppress common-mode electromagnetic interference. They are also called common-mode chokes. They consist of two coils of the same size and number of turns, which are wound on the same toroidal core in opposite directions. The working principle of common-mode inductors is based on the principle of superposition of magnetic fluxes. When common-mode current flows through, the magnetic fluxes in the magnetic rings are superimposed on each other, thereby generating a large inductance, which suppresses the common-mode current.
[0003] When the coil is wound on the annular core, several turns will be dragged, and the conductors between adjacent turns cannot be fixed. It is inevitable that shaking will occur during the movement, which will cause the coil to become loose after it is formed. Currently, the coil cannot be effectively reinforced after it is wound on the annular core. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] The technical problem to be solved by the utility model is that after the coil is wound on the annular magnetic core, if shaking occurs, the coil may become loose, and the current coil cannot be effectively reinforced on the annular magnetic core.
[0006] (II) Technical solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a coil anti-loosening common mode inductor, including a base, an iron core and a clamping mechanism, the iron core is provided with relatively arranged core clips, the core clip located at the bottom is fixedly connected to the base, a coil is wound on the iron core, the clamping mechanism includes a swivel seat fixedly connected to the upper end of the core clip located at the top, and relatively arranged annular plates are rotatably provided on the swivel seat, and at least one and evenly arranged clamping grooves cooperating with the coil are provided in the annular plates, a pull rope is fixedly connected to the annular plates, one end of the pull rope is provided with a snap, and the lower end of the base is provided with relatively arranged buckle grooves respectively cooperating with the snaps on both sides.
[0008] As an improvement, a sponge sheet matching the coil is adhered in each of the clamping grooves.
[0009] As an improvement, the pull rope is an elastic rope.
[0010] As an improvement, arc-shaped grooves cooperating with the pull rope are provided on both sides of the base.
[0011] As an improvement, the clamping grooves are arranged at equal intervals on the annular sheet.
[0012] As an improvement, the annular sheet is provided with anti-slip grooves on one side opposite to the clamping groove.
[0013] (III) Beneficial effects
[0014] The advantage of the utility model over the prior art is that after the coil is wound on the iron core, the drawstrings on both sides are pulled and the snaps are pressed against the lower end of the base. At this time, the clamping groove in the annular sheet is in close contact with the surface of the coil, and the annular sheet can be pressed against the side of the iron core by the pulling force of the drawstrings, so that the coil can be prevented from being loosened and the coil can be effectively clamped. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a three-dimensional common mode inductor for preventing coil loosening Figure 1 .
[0016] Figure 2 The utility model is a three-dimensional common mode inductor for preventing coil loosening Figure 2 .
[0017] Figure 3 The utility model is a structural schematic diagram of a clamping mechanism for preventing a coil from loosening a common mode inductor.
[0018] As shown in the figure: 1. Base; 2. Iron core; 3. Coil; 4. Core clamp; 5. Clamping mechanism; 6. Turntable; 7. Ring piece; 8. Clamping groove; 9. Pull rope; 10. Snap button. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0020] Embodiment 1
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a common-mode inductor for preventing coil 3 from loosening comprises a base 1, an iron core 2 and a clamping mechanism 5, wherein the iron core 2 is provided with core clips 4 arranged opposite to each other, the core clip 4 located at the bottom is fixedly connected to the base 1, the iron core 2 is wound with a coil 3, the clamping mechanism 5 comprises a swivel seat 6 fixedly connected to the upper end of the core clip 4 located above, the swivel seat 6 is rotatably provided with annular sheets 7 arranged opposite to each other, the annular sheets 7 are provided with at least one evenly arranged clamping groove 8 cooperating with the coil 3, the clamping grooves 8 are equidistantly arranged on the annular sheet 7, and sponge sheets cooperating with the coil 3 are adhered to the clamping grooves 8.
[0022] Through the above structure, the clamping groove 8 can limit the coil 3. How to keep the annular sheet 7 close to one side of the iron core 2? The specific structure is as follows:
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a pull rope 9 is fixedly connected to the annular sheet 7, and a snap button 10 is provided at one end of the pull rope 9. The lower end of the base 1 is provided with buckle grooves which are arranged opposite to each other and respectively cooperate with the snap buttons 10 on both sides. The pull rope 9 is an elastic rope, and arc grooves which cooperate with the pull rope 9 are provided on both sides of the base 1.
[0024] Through the above structure, the tension of the pull rope 9 can make the annular sheet 7 close to the side surface of the iron core 2.
[0025] Embodiment 2
[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the annular sheet 7 is provided with anti-slip grooves on the side opposite to the clamping groove 8 .
[0027] The above structure makes it convenient to grab the annular sheet 7.
[0028] When the utility model is implemented, after the coil is wound on the iron core, the coil is clamped. Specifically, the annular sheets on both sides are rotated to be placed on the sides of the iron core, and then the pull rope is pulled. At this time, the pulling force of the pull rope on the annular sheets can make the annular sheets close to the sides of the iron core. At the same time, the clamping grooves are close to each coil, and the clamping grooves can prevent the coils from being displaced. At the same time, the snaps are pressed into the snap grooves at the lower end of the base. In this way, when the iron core is moved, the coil is subjected to the pressure of the annular sheets and the clamping grooves, which can prevent the coils from being loose and can effectively clamp the coils.
[0029] 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.
[0030] 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.
[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A coil anti-loosening common mode inductor, characterized in that: The invention comprises a base (1), an iron core (2) and a clamping mechanism (5), wherein the iron core (2) is provided with core clamps (4) arranged opposite to each other, the core clamp (4) located at the bottom is fixedly connected to the base (1), a coil (3) is wound around the iron core (2), and the clamping mechanism (5) comprises a rotating seat (6) fixedly connected to the upper end of the core clamp (4) located at the top, an annular sheet (7) arranged opposite to each other is rotatably provided on the rotating seat (6), and each annular sheet (7) is provided with at least one evenly arranged clamping groove (8) cooperating with the coil (3); The annular sheets (7) are all fixedly connected with a drawstring (9), one end of each drawstring (9) is provided with a snap button (10), and the lower end of the base (1) is provided with snap grooves arranged opposite to each other and respectively matched with the snap buttons (10) on both sides.
2. The coil anti-loosening common mode inductor according to claim 1, characterized in that: The clamping grooves (8) are all adhered with sponge sheets that match the coils (3).
3. The coil anti-loosening common mode inductor according to claim 1, characterized in that: The pull rope (9) is an elastic rope.
4. The coil anti-loosening common mode inductor according to claim 1, characterized in that: Both sides of the base (1) are provided with arc grooves that cooperate with the pull rope (9).
5. The coil anti-loosening common mode inductor according to claim 1, characterized in that: The clamping grooves (8) are arranged at equal intervals on the annular sheet (7).
6. The coil anti-loosening common mode inductor according to claim 1, characterized in that: The annular sheet (7) is provided with anti-slip grooves on one side opposite to the clamping groove (8).