Split type inductance filter with stable assembly structure

Abstract

The utility model discloses a split inductance filter with a stable assembly structure, which comprises a base, a magnetic ring, a first coil and a second coil, a first winding part and a second winding part are arranged in the middle of the base, the first coil and the second coil are respectively wound in the first winding part and the second winding part, and the first coil and the second coil do not protrude out of the base; a jack penetrating through the left and right side surfaces of the base is formed in the middle of the base and transversely penetrates through the middle parts of the first and second winding parts; the magnet ring comprises a first magnet ring body and a second magnet ring body which are in a semi-square frame shape and can be butted to form a square frame shape, the first magnet ring body and the second magnet ring body are respectively inserted inwards along the two sides of the base, and the lower parts of the first magnet ring body and the second magnet ring body are embedded into the insertion holes, butted and penetrate through the centers of the first coil and the second coil; the upper parts of the first and second magnetic ring bodies are arranged on the upper end surface of the base and butted; the semi-square-frame-shaped metal clamping piece clamps the upper end faces and the outer side faces of the first magnetic ring body and the second magnetic ring body from top to bottom in a clamping mode and clamps and fixes the first magnetic ring body and the second magnetic ring body. The device is simple and stable in structure.

Description

Technical field:

[0001] The utility model relates to the technical field of electronic component products, in particular to a split inductor filter with a stable assembly structure. Background technology:

[0002] As a common electrical component, filters are used in almost all electronic products. They have simple principles and a wide range of applications.

[0003] The Chinese utility model patent with application number 202222774287.6 discloses a tightly wound filter, which includes a magnetic ring, a shell for accommodating the magnetic ring, a base, a middle partition and pins. The magnetic ring includes a top cover, a bottom cover and two side-by-side magnetic columns. The top cover and the bottom cover are arranged opposite to each other. The two magnetic columns are uprightly arranged between the top cover and the bottom cover and the two ends are respectively fixed to the top cover and the bottom cover. The two magnetic columns are used to wind the coil; the base includes a bottom plate and a back plate extending perpendicular to the bottom plate, the back plate includes an upper baffle arm and a lower baffle arm, the upper baffle arm and the lower baffle arm are respectively located at the upper end and the lower end of the coil, and are used to limit the upper and lower ends of the coil so that the coil is wound tightly and does not fall off. The bottom plate includes a groove located on the lower surface of the bottom plate; the two ends of the middle partition are respectively fixed to the top cover and the bottom cover, and the middle partition is vertically arranged on the back plate for insulating and isolating the two coils; a side of the bottom plate facing away from the back plate is plugged with a plurality of pins for connecting with other electrical appliances. The magnetic ring also includes two relatively arranged slots, which match the upper and lower surfaces of the middle partition. The upper and lower surfaces of the middle partition are accommodated in the slots, so as to realize a stable connection between the magnetic ring and the middle partition.

[0004] That is to say, the assembly structure of the magnetic ring and the base is: the top cover and the bottom cover at the upper and lower ends of the magnetic ring are both embedded in the installation groove of the base, and the upper and lower ends of the middle partition are embedded in the two oppositely arranged slots in the magnetic ring, thereby confining the magnetic ring in the base. However, this assembly structure is not stable, and the magnetic ring is easy to fall off relative to the base, resulting in poor product quality. In addition, the coil wound around the magnetic ring is exposed outside the base, resulting in a poor protection of the coil. In addition, the coil is wound on the annular magnetic ring, which is inconvenient and difficult to wind.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a split inductor filter with a stable assembly structure.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: the split inductor filter with stable assembly structure includes a base, a magnetic ring, a first coil and a second coil, the middle part of the base is provided with two first winding parts and a second winding part which are spaced from each other in the left and right directions and have a ring groove structure, the first coil and the second coil are respectively wound in the first winding part and the second winding part, and the first coil and the second coil do not protrude from the base; the middle part of the base is provided with a jack which passes through the left and right sides thereof, and the jack crosses the first winding part and the second winding part the middle part of the base; the magnetic ring includes two first and second magnetic ring bodies which are semi-square-frame shaped and can be connected to form a square frame, the first and second magnetic ring bodies are respectively inserted inward along the two sides of the base, and the lower parts of the first and second magnetic ring bodies are both embedded in the insertion hole and connected, and pass through the center of the first coil and the second coil; the upper parts of the first and second magnetic ring bodies are both placed on the upper end surface of the base and connected; the semi-square-frame-shaped metal clamping sheet clamps the upper end surface and outer side surface of the first and second magnetic ring bodies from top to bottom, and clamps the first and second magnetic ring bodies.

[0008] Furthermore, in the above technical solution, a left limit groove and a right limit groove are respectively provided on the left and right sides of the base, the left limit groove is connected to the left side of the socket, and the right limit groove is connected to the right side of the socket, the middle part of the first magnetic ring body is also embedded in the left limit groove, and the middle part of the second magnetic ring body is also embedded in the right limit groove.

[0009] Furthermore, in the above technical solution, the middle portion of the first magnetic ring body and the left limit groove are bonded together by glue, and the middle portion of the second magnetic ring body and the right limit groove are bonded together by glue.

[0010] Furthermore, in the above technical solution, a guide slope is also provided on the outer side of the jack port, and the guide slope is connected to the jack port.

[0011] Furthermore, in the above technical solution, the metal clamping piece includes a transverse piece and a first clamping piece and a second clamping piece bent downwardly along both ends of the transverse piece, wherein the clamping between the first clamping piece and the transverse piece is less than 90 degrees, the clamping between the second clamping piece and the transverse piece is less than 90 degrees, and the length of the transverse piece is greater than the width of the upper end of the magnetic ring, the lower surface of the transverse piece is attached to the upper end surfaces of the first magnetic ring body and the second magnetic ring body, and the lower ends of the first clamping piece and the second clamping piece are respectively clamped and positioned on the outer side surfaces of the first magnetic ring body and the second magnetic ring body.

[0012] Furthermore, in the above technical solution, the middle part of the horizontal piece is also bent downward so that both sides of the horizontal piece are curled upward; the first clip is also bonded to the outer side of the first magnetic ring body by glue; the second clip is also bonded to the outer side of the second magnetic ring body by glue.

[0013] Furthermore, in the above technical solution, the inner side surfaces of the upper and lower ends of the first magnetic ring body are both planes, the inner side surfaces of the upper and lower ends of the second magnetic ring body are both planes, and the inner side surfaces of the upper and lower ends of the first magnetic ring body are in plane contact with the inner side surfaces of the upper and lower ends of the second magnetic ring body.

[0014] Furthermore, in the above technical solution, the inner side surfaces of the upper and lower ends of the first magnetic ring body are provided with a first groove, and the inner side surfaces of the upper and lower ends of the second magnetic ring body are provided with a first convex portion. After the inner side surfaces of the upper and lower ends of the first magnetic ring body are connected with the inner side surfaces of the upper and lower ends of the second magnetic ring body, the first convex portion is connected with the first groove to clamp and position them.

[0015] Furthermore, in the above technical solution, the inner side surfaces of the upper and lower ends of the second magnetic ring body are provided with a first groove, and the inner side surfaces of the upper and lower ends of the first magnetic ring body are provided with a first convex portion. After the inner side surfaces of the upper and lower ends of the second magnetic ring body are connected with the inner side surfaces of the upper and lower ends of the first magnetic ring body, the first convex portion is connected with the first groove to clamp and position.

[0016] Furthermore, in the above technical solution, a sub-cover plate for separating the first winding part and the second winding part is formed in the middle of the base, and the sub-cover plate is placed between the first winding part and the second winding part.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0018] The utility model winds the first coil and the second coil around the first winding part and the second winding part in the middle of the base respectively. Since the first winding part and the second winding part are annular groove structures, there is no shielding on the outside, so that the first coil and the second coil can be wound more conveniently, and the process is simple, the coil winding efficiency is high, and the first coil and the second coil do not protrude from the base, which can better protect the first coil and the second coil; in addition, the utility model divides the magnetic ring into two first magnetic ring bodies and second magnetic ring bodies that are semi-square frames and can be connected to form a square frame. The first magnetic ring body and the second magnetic ring body are installed in the base by plug-in, and connected to form a complete annular structure, and the lower parts of the first magnetic ring body and the second magnetic ring body are embedded in the jack in the middle of the base and pass through the center of the first coil and the second coil after connection, so that the first coil and the second coil are indirectly wound on The first magnetic ring body and the second magnetic ring body play the same role as the conventional structure of directly winding the coil on the annular magnetic ring. Finally, the first magnetic ring body and the second magnetic ring body are clamped and fixed by the metal clamping sheet, so that the magnetic ring formed by the first magnetic ring body and the second magnetic ring body is stably installed in the base. Its assembly structure is novel. Compared with the inseparable annular magnetic ring, the magnetic ring structure of the utility model is easier to install and can be assembled with the plug hole of the base. The assembly structure is more stable, the magnetic ring and the base are not easy to fall off relative to each other, so the quality of assembly is guaranteed, and there is no need to directly wind the coil on the magnetic ring, so that the coil winding is more convenient and more efficient. In addition, the metal clamping sheet not only serves the purpose of clamping the first magnetic ring body and the second magnetic ring body, but also prevents the first magnetic ring body and the second magnetic ring body from directly contacting foreign objects, thereby achieving the purpose of protecting the first magnetic ring body and the second magnetic ring body. Description of the drawings:

[0019] Figure 1 It is a three-dimensional diagram of the utility model (without winding the first and second coils);

[0020] Figure 2 It is a stereogram of the utility model from another perspective (the first and second coils are not wound);

[0021] Figure 3 It is the front view of the utility model;

[0022] Figure 4 It is a cross-sectional view of the utility model;

[0023] Figure 5 It is a three-dimensional exploded view of the utility model;

[0024] Figure 6 It is a front view of the metal clamping sheet in the utility model. Specific implementation method:

[0025] The utility model is further described below in conjunction with specific embodiments and drawings.

[0026] See Figure 1-6 As shown, a split-type inductor filter with a stable assembly structure includes a base 1, a magnetic ring 2, a first coil 3 and a second coil 4.

[0027] The base 1 is provided with two first winding parts 11 and second winding parts 12 which are spaced from each other in the left and right directions and are in annular groove structures in the middle part, the first coil 3 and second coil 4 are respectively wound in the first winding part 11 and second winding part 12, and the first coil 3 and second coil 4 do not protrude from the base 1; the base 1 is provided with a plug hole 13 which passes through the left and right sides thereof in the middle part, and the plug hole 13 crosses the middle part of the first winding part 11 and the second winding part 12; the magnetic ring 2 includes two first magnetic ring bodies which are semi-square-shaped and can be connected to form a square-shaped first magnetic ring body 21 and the second magnetic ring body 22, the first magnetic ring body 21 and the second magnetic ring body 22 are respectively inserted inward along the two sides of the base 1, and the lower parts of the first magnetic ring body 21 and the second magnetic ring body 22 are embedded in the jack 13 and connected, and pass through the center of the first coil 3 and the second coil 4; the upper parts of the first magnetic ring body 21 and the second magnetic ring body 22 are placed on the upper end surface of the base and connected; the semi-square frame-shaped metal clamping sheet 5 clamps the upper end surface and outer side surface of the first magnetic ring body 21 and the second magnetic ring body 22 from top to bottom, and clamps the first magnetic ring body 21 and the second magnetic ring body 22.That is to say, the utility model winds the first coil 3 and the second coil 4 around the periphery of the first winding part 11 and the second winding part 12 in the middle of the base 1 respectively. Since the first winding part 11 and the second winding part 12 are annular groove structures, there is no shielding on the outside, so that the first coil 3 and the second coil 4 can be wound more conveniently, and the process is simple, the coil winding efficiency is high, and the first coil 3 and the second coil 4 do not protrude from the base, which can better protect the first coil 3 and the second coil 4; in addition, the utility model divides the magnetic ring 2 into two semi-square frame-shaped first magnetic ring bodies 21 and the second magnetic ring bodies 22 that can be connected to form a square frame. The first magnetic ring body 21 and the second magnetic ring body 22 are installed in the base 1 by plug-in, and connected to form a complete annular structure, and the lower parts of the first magnetic ring body 21 and the second magnetic ring body 22 are embedded in the jack 13 in the middle of the base and pass through the center of the first coil 3 and the second coil 4 after connection, so that the first coil 3 and the second coil The coil 4 is indirectly wound on the first magnetic ring body 21 and the second magnetic ring body 22, playing the same role as the conventional structure of directly winding the coil on the annular magnetic ring. Finally, the first magnetic ring body 21 and the second magnetic ring body 22 are clamped and fixed by the metal clamping sheet 5, so that the magnetic ring 2 formed by the first magnetic ring body 21 and the second magnetic ring body 22 is stably installed in the base 1. Its assembly structure is novel. Compared with the inseparable annular magnetic ring, the magnetic ring structure of the utility model is easier to install and can be plugged and assembled with the socket of the base. The assembly structure is more stable, the magnetic ring and the base are not easy to fall off relative to each other, so the quality of assembly is guaranteed, and there is no need to directly wind the coil on the magnetic ring, which makes the coil winding more convenient and more efficient. In addition, the metal clamping sheet 5 not only serves the purpose of clamping the first magnetic ring body 21 and the second magnetic ring body 22, but also prevents the first magnetic ring body 21 and the second magnetic ring body 22 from directly contacting foreign objects, thereby achieving the purpose of protecting the first magnetic ring body 21 and the second magnetic ring body 22.

[0028] In order to make the first magnetic ring body 21 and the second magnetic ring body 22 more stably assembled with the base, the following settings are also made:

[0029] The left and right sides of the base 1 are respectively provided with a left limit groove 15 and a right limit groove 16, the left limit groove 15 is connected to the left side of the jack 13, and the right limit groove 16 is connected to the right side of the jack 13, the middle part of the first magnetic ring body 21 is also embedded in the left limit groove 15, and the middle part of the second magnetic ring body 22 is also embedded in the right limit groove 16, thereby ensuring that the first magnetic ring body 21 and the second magnetic ring body 22 are assembled with the base more stably. Furthermore, the middle part of the first magnetic ring body 21 and the left limit groove 15 are also glued, and the middle part of the second magnetic ring body 22 and the right limit groove 16 are also glued, thereby further ensuring the stability of the assembly structure of the first magnetic ring body 21 and the second magnetic ring body 22 with the base, so that the magnetic ring and the base are stably assembled together and will not be accidentally separated.

[0030] A guide slope 131 is also provided on the outer side of the port of the jack 13, and the guide slope 131 is connected to the port of the jack 13. When the first magnetic ring body 21 and the second magnetic ring body 22 are inserted into the jack 13, the inner sides of the lower ends of the first magnetic ring body 21 and the second magnetic ring body 22 contact the guide slope 131. The guide slope 131 can play a good guiding role, thereby enabling the inner sides of the lower ends of the first magnetic ring body 21 and the second magnetic ring body 22 to be quickly and effectively inserted into the jack 13.

[0031] The assembly structure between the first magnetic ring body 21 and the second magnetic ring body 22 includes at least the following three types:

[0032] The first assembly structure is: the inner side surfaces of the upper and lower ends of the first magnetic ring body 21 are both planes, the inner side surfaces of the upper and lower ends of the second magnetic ring body 22 are both planes, and the inner side surfaces of the upper and lower ends of the first magnetic ring body 21 and the inner side surfaces of the upper and lower ends of the second magnetic ring body 22 are in plane contact.

[0033] The second assembly structure is: the inner side surfaces of the upper and lower ends of the first magnetic ring body 21 are provided with first grooves 222, and the inner side surfaces of the upper and lower ends of the second magnetic ring body 22 are provided with first protrusions 221. After the inner side surfaces of the upper and lower ends of the first magnetic ring body 21 are connected with the inner side surfaces of the upper and lower ends of the second magnetic ring body 22, the first protrusions 221 are connected with the first grooves 222 to hold them in place.

[0034] The third assembly structure is: the inner side surfaces of the upper and lower ends of the second magnetic ring body 22 are provided with a first groove, and the inner side surfaces of the upper and lower ends of the first magnetic ring body 21 are provided with a first convex portion. After the inner side surfaces of the upper and lower ends of the second magnetic ring body 22 are connected with the inner side surfaces of the upper and lower ends of the first magnetic ring body 21, the first convex portion is connected with the first groove to clamp and position.

[0035] The second and third assembly structures are relatively superior, which can not only increase the contact area between the first magnetic ring body 21 and the second magnetic ring body 22, but also further make the assembly structure between the first magnetic ring body 21 and the second magnetic ring body 22 more stable, thereby achieving dual technical effects.

[0036] A separate cover plate 17 for separating the first winding portion 11 and the second winding portion 12 is formed in the middle of the base 1. The separate cover plate 17 is placed between the first winding portion 11 and the second winding portion 12, and serves to separate the first coil 3 and the second coil 4 so that the first coil 3 and the second coil 4 do not interfere with each other.

[0037] The metal clamping piece 5 includes a transverse piece 51 and a first clamping piece 52 and a second clamping piece 53 which are bent downward along the two ends of the transverse piece 51, wherein the clamping between the first clamping piece 52 and the transverse piece 51 is less than 90 degrees, the clamping between the second clamping piece 53 and the transverse piece 51 is less than 90 degrees, and the length of the transverse piece 51 is greater than the width of the upper end of the magnetic ring 2, the lower surface of the transverse piece 51 is attached to the upper end surfaces of the first magnetic ring body 21 and the second magnetic ring body 22, and the lower ends of the first clamping piece 52 and the second clamping piece 53 are respectively clamped and positioned on the outer side surfaces of the first magnetic ring body 21 and the second magnetic ring body 22. Since the clamping between the first clamping piece 52 and the second clamping piece 53 and the transverse piece 51 is less than 90 degrees, the first clamping piece 52 and the second clamping piece 53 can form sufficient elasticity relative to the transverse piece 51, and can further stably clamp and fix the outer side surfaces of the first magnetic ring body 21 and the second magnetic ring body 22, respectively, to ensure the stability of the assembly structure.

[0038] The middle portion of the transverse piece 51 is further bent downward, so that both sides of the transverse piece 51 are tilted upward, thereby further enhancing the elasticity of the first clamping piece 52 and the second clamping piece 53 .

[0039] The first clamping piece 52 is also bonded to the outer side surface of the first magnetic ring body 21 by glue; the second clamping piece 53 is also bonded to the outer side surface of the second magnetic ring body 22 by glue, and the structure is more stable.

[0040] In summary, the utility model winds the first coil 3 and the second coil 4 around the periphery of the first winding part 11 and the second winding part 12 in the middle of the base 1 respectively. Since the first winding part 11 and the second winding part 12 are annular groove structures, there is no shielding on the outside, so that the first coil 3 and the second coil 4 can be wound more conveniently, and the process is simple, the coil winding efficiency is high, and the first coil 3 and the second coil 4 do not protrude from the base, which can better protect the first coil 3 and the second coil 4; in addition, the utility model divides the magnetic ring 2 into two semi-square frame-shaped first magnetic ring bodies 21 and the second magnetic ring bodies 22 that can be connected to form a square frame. The first magnetic ring body 21 and the second magnetic ring body 22 are installed in the base 1 by plug-in, and connected to form a complete annular structure, and the lower parts of the first magnetic ring body 21 and the second magnetic ring body 22 are embedded in the jack 13 in the middle of the base and pass through the center of the first coil 3 and the second coil 4 after connection, so that the first coil 3 and the second coil The coil 4 is indirectly wound on the first magnetic ring body 21 and the second magnetic ring body 22, playing the same role as the conventional structure of directly winding the coil on the annular magnetic ring. Finally, the first magnetic ring body 21 and the second magnetic ring body 22 are clamped and fixed by the metal clamping sheet 5, so that the magnetic ring 2 formed by the first magnetic ring body 21 and the second magnetic ring body 22 is stably installed in the base 1. Its assembly structure is novel. Compared with the inseparable annular magnetic ring, the magnetic ring structure of the utility model is easier to install and can be plugged and assembled with the socket of the base. The assembly structure is more stable, the magnetic ring and the base are not easy to fall off relative to each other, so the quality of assembly is guaranteed, and there is no need to directly wind the coil on the magnetic ring, which makes the coil winding more convenient and more efficient. In addition, the metal clamping sheet 5 not only serves the purpose of clamping the first magnetic ring body 21 and the second magnetic ring body 22, but also prevents the first magnetic ring body 21 and the second magnetic ring body 22 from directly contacting foreign objects, thereby achieving the purpose of protecting the first magnetic ring body 21 and the second magnetic ring body 22.

[0041] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A split-type inductor filter with a stable assembly structure, comprising a base (1), a magnetic ring (2), a first coil (3) and a second coil (4), characterized in that: The base (1) is provided with two first winding parts (11) and second winding parts (12) which are spaced from each other in the left and right directions and are in annular groove structures in the middle part, the first coil (3) and the second coil (4) are respectively wound in the first winding part (11) and the second winding part (12), and the first coil (3) and the second coil (4) do not protrude from the base (1); the base (1) is provided with a plug hole (13) which passes through the left and right sides thereof in the middle part, and the plug hole (13) crosses the middle part of the first winding part (11) and the second winding part (12); the magnetic ring (2) comprises two first magnetic ring bodies (2) which are in the shape of semi-square frames and can be connected to form a square frame. 1) and a second magnetic ring body (22), the first magnetic ring body (21) and the second magnetic ring body (22) are respectively inserted inwardly along the two sides of the base (1), and the lower parts of the first magnetic ring body (21) and the second magnetic ring body (22) are both embedded in the insertion hole (13) and connected, and pass through the center of the first coil (3) and the second coil (4); the upper parts of the first magnetic ring body (21) and the second magnetic ring body (22) are both placed on the upper end surface of the base (1) and connected; the metal clamping sheet (5) in the shape of a semi-square frame clamps the upper end surface and the outer side surface of the first magnetic ring body (21) and the second magnetic ring body (22) from top to bottom, and clamps and fixes the first magnetic ring body (21) and the second magnetic ring body (22).

2. The split-type inductor filter with a stable assembly structure according to claim 1, characterized in that: A left limiting groove (15) and a right limiting groove (16) are respectively provided on the left and right sides of the base (1); the left limiting groove (15) is connected to the left side of the insertion hole (13); the right limiting groove (16) is connected to the right side of the insertion hole (13); the middle part of the first magnetic ring body (21) is also embedded in the left limiting groove (15); and the middle part of the second magnetic ring body (22) is also embedded in the right limiting groove (16).

3. The split-type inductor filter with a stable assembly structure according to claim 2, characterized in that: The middle portion of the first magnetic ring body (21) and the left limit groove (15) are bonded together by glue, and the middle portion of the second magnetic ring body (22) and the right limit groove (16) are bonded together by glue.

4. The split-type inductor filter with a stable assembly structure according to claim 2, characterized in that: A guide slope (131) is also provided on the outer side of the port of the jack (13), and the guide slope (131) is connected to the port of the jack (13).

5. A split-type inductor filter with a stable assembly structure according to any one of claims 1 to 4, characterized in that: The metal clamping sheet (5) comprises a transverse sheet (51) and a first clamping sheet (52) and a second clamping sheet (53) which are bent downwardly along the two ends of the transverse sheet (51), wherein the clamping angle between the first clamping sheet (52) and the transverse sheet (51) is less than 90 degrees, the clamping angle between the second clamping sheet (53) and the transverse sheet (51) is less than 90 degrees, and the length of the transverse sheet (51) is greater than the width of the upper end of the magnetic ring (2), the lower surface of the transverse sheet (51) is attached to the upper end surfaces of the first magnetic ring body (21) and the second magnetic ring body (22), and the lower ends of the first clamping sheet (52) and the second clamping sheet (53) are respectively clamped and positioned on the outer side surfaces of the first magnetic ring body (21) and the second magnetic ring body (22).

6. The split-type inductor filter with a stable assembly structure according to claim 5, characterized in that: The middle part of the transverse piece (51) is also bent downward so that both sides of the transverse piece (51) are tilted upward; the first clamping piece (52) is also glued to the outer side surface of the first magnetic ring body (21); and the second clamping piece (53) is also glued to the outer side surface of the second magnetic ring body (22).

7. The split-type inductor filter with a stable assembly structure according to claim 5, characterized in that: The inner side surfaces of the upper and lower ends of the first magnetic ring body (21) are both planes, and the inner side surfaces of the upper and lower ends of the second magnetic ring body (22) are both planes. The inner side surfaces of the upper and lower ends of the first magnetic ring body (21) are in plane contact with the inner side surfaces of the upper and lower ends of the second magnetic ring body (22).

8. The split-type inductor filter with a stable assembly structure according to claim 5, characterized in that: The inner side surfaces of the upper and lower ends of the first magnetic ring body (21) are provided with first grooves (222), and the inner side surfaces of the upper and lower ends of the second magnetic ring body (22) are provided with first protrusions (221). After the inner side surfaces of the upper and lower ends of the first magnetic ring body (21) are connected with the inner side surfaces of the upper and lower ends of the second magnetic ring body (22), the first protrusions (221) are connected with the first grooves (222) to hold and position them.

9. The split-type inductor filter with a stable assembly structure according to claim 5, characterized in that: The inner side surfaces of the upper and lower ends of the second magnetic ring body (22) are provided with a first groove, and the inner side surfaces of the upper and lower ends of the first magnetic ring body (21) are provided with a first convex portion. After the inner side surfaces of the upper and lower ends of the second magnetic ring body (22) are connected to the inner side surfaces of the upper and lower ends of the first magnetic ring body (21), the first convex portion is connected to the first groove to hold and position.

10. The split-type inductor filter with a stable assembly structure according to claim 5, characterized in that: A separate cover plate (17) for separating the first winding portion (11) and the second winding portion (12) is also formed in the middle of the base (1), and the separate cover plate (17) is placed between the first winding portion (11) and the second winding portion (12).

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