Groove-shaped buckle type anti-interference magnetic ring

Abstract

The utility model belongs to the technical field of anti-interference magnetic rings, and particularly relates to a groove-shaped buckle type anti-interference magnetic ring which comprises two semi-groove-shaped magnetic rings capable of being spliced, each semi-groove-shaped magnetic ring is composed of a semi-groove-shaped shell and a semi-groove-shaped magnetic core, a clamping groove is formed in the inner ring face of each semi-groove-shaped shell, and each semi-groove-shaped magnetic core is embedded in the corresponding clamping groove. A fixing plate is arranged at a notch of the clamping groove and covers the semi-groove-shaped magnetic core, and a plurality of semicircular wire grooves are formed in the side, away from the semi-groove-shaped magnetic core, of the fixing plate. According to the semi-groove-shaped shell, the grooves allowing the semi-groove-shaped magnetic cores to be inserted are formed in the clamping grooves of the semi-groove-shaped shell, all the end faces of the semi-groove-shaped magnetic cores can be attached to the inner walls of the clamping grooves, the stability of the semi-groove-shaped magnetic cores in the using process is guaranteed, the fixing plates are additionally arranged at the groove openings to cover the semi-groove-shaped magnetic cores, and therefore the fixing effect is improved. The anti-interference magnetic ring prevents the semi-groove-shaped magnetic core from falling off from the shell due to vibration and the like, meanwhile, the fixing plate is arranged to be opened and closed in a swing buckle mode, replacement, disassembly and assembly of the semi-groove-shaped magnetic core cannot be hindered, and the durability of the anti-interference magnetic ring is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-interference magnetic rings, and particularly relates to a groove-shaped snap-type anti-interference magnetic ring. Background Art

[0002] An anti-interference magnetic ring is a commonly used anti-interference component in electronic circuits, which has a good inhibitory effect on high-frequency noise and is generally made of ferrite materials. The magnetic ring has different impedance characteristics at different frequencies. Generally, the impedance is very small at low frequencies, and when the signal frequency increases, the impedance of the magnetic ring increases sharply. Under the action of the magnetic ring, the normal and useful signals can pass through well, and the high-frequency interference signals can be well inhibited, and the cost is low.

[0003] An anti-interference magnetic core with a plastic shell disclosed in the patent CN205862917U includes a cylindrical plastic shell, and a magnet is arranged inside the cylindrical plastic shell. The magnet is composed of two semi-circular magnetic rings. Platforms are cut on the arc surfaces of the two magnetic rings. Card slots are arranged at both ends of the magnetic rings. A snap that matches the card slot is arranged inside the cylindrical plastic shell. The cylindrical plastic shell is a snap-type plastic shell. Elastic pressing plates are arranged on the upper and lower arc surfaces of the cylindrical plastic shell. The elastic pressing plates and the platforms are in the same vertical plane. A plurality of elastic snaps are arranged at both ends inside the cylindrical plastic shell. Wiring holes are arranged on the left and right bottom surfaces of the cylindrical plastic shell. Heat dissipation holes are arranged on the front and back sides of the elastic pressing plates. The utility model is simple and fast in actual installation operation, improves work efficiency and increases production benefits.

[0004] In the above scheme, the anti-interference magnet is fixed on the fever wire by using the snap-type plastic shell, which makes the installation of the anti-interference magnet very simple, simplifies the installation steps and speeds up the work efficiency. However, the magnetic ring does not have a positive blocking structure in the card slot, and there is an elastic pressing plate on the back for reverse pressure. When the shell is bumped, it is easy to break open, resulting in the magnetic ring falling out, seriously affecting the overall stability of the device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a groove-shaped snap-type anti-interference magnetic ring that can solve the above technical problems.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Groove-shaped snap-in anti-interference magnetic ring, comprising two semi-groove-shaped magnetic rings that can be joined together. The semi-groove-shaped magnetic ring is composed of a semi-groove-shaped housing and a semi-groove-shaped magnetic core. A card slot is provided on the inner circumferential surface of the semi-groove-shaped housing, and the semi-groove-shaped magnetic core is embedded in the card slot. A fixing plate is arranged at the notch of the card slot to cover the semi-groove-shaped magnetic core, and a number of semi-circular wire grooves are provided on the side of the fixing plate away from the semi-groove-shaped magnetic core.

[0008] In the groove-shaped snap-in anti-interference magnetic ring, the fixing plate comprises a pressing plate and an inserting plate. The pressing plate is arranged on the inserting plate. One end of the inserting plate is hinged to the inner wall of the card slot, and the other end of the inserting plate is clamped to the inner wall of the card slot.

[0009] In the groove-shaped snap-in anti-interference magnetic ring, the pressing plate is mounted on the two inserting plates, the pressing plate abuts against the semi-groove-shaped magnetic core, and the inserting plate is inserted between the inner wall of the card slot and the semi-groove-shaped magnetic core.

[0010] In the groove-shaped snap-in anti-interference magnetic ring, avoiding through grooves are provided at both ends of the pressing plate, so that the two arc-shaped ends of the semi-groove-shaped magnetic core can extend out of the notch of the card slot from the avoiding through grooves between the two inserting plates.

[0011] In the groove-shaped snap-in anti-interference magnetic ring, a number of semi-circular wire grooves are provided on the side of the pressing plate away from the semi-groove-shaped magnetic core.

[0012] In the groove-shaped snap-in anti-interference magnetic ring, limiting blocks are provided on the two symmetric side walls of the card slot. The semi-groove-shaped magnetic core is inserted between the two limiting blocks, and the two arc-shaped ends of the semi-groove-shaped magnetic core abut against the inner wall of the card slot.

[0013] In the groove-shaped snap-in anti-interference magnetic ring, one side of the inserting plate abuts against the limiting block, so that the side opposite to the abutting surface is flush with the notch of the card slot.

[0014] In the groove-shaped snap-in anti-interference magnetic ring, the two semi-groove-shaped magnetic rings are joined together with the card slots facing each other. The arc-shaped ends of the two semi-groove-shaped magnetic cores are in contact, and the semi-circular wire grooves are joined together to form a complete circular wire groove.

[0015] In the groove-shaped snap-in anti-interference magnetic ring, one end of the two semi-groove-shaped magnetic rings is connected by a hinge, and a snap is provided at the other end.

[0016] In the groove-shaped snap-in anti-interference magnetic ring, the hinged part of the fixing plate and the semi-groove-shaped housing is arranged on the side close to the snap.

[0017] The advantages of the present utility model are:

[0018] A groove for inserting a semi-grooved magnetic core is provided in the clamping groove of the semi-grooved housing, so that each end face of the semi-grooved magnetic core can be in contact with the inner wall of the clamping groove, ensuring the stability of the semi-grooved magnetic core during use. An additional fixing plate is provided at the notch to cover the semi-grooved magnetic core, preventing the semi-grooved magnetic core from falling off the housing due to vibration or other reasons. At the same time, the fixing plate is set to swing and buckle open and close, which will not prevent the replacement and disassembly of the semi-grooved magnetic core, improving the durability of the anti-interference magnetic ring. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the semi-grooved magnetic ring of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure inside the clamping groove of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the fixing plate of the present invention.

[0023] In the figure, semi-grooved magnetic ring 1, buckle 11, semi-grooved housing 2, clamping groove 21, limit block 22, semi-grooved magnetic core 3, fixing plate 4, semi-circular wire groove 41, pressing plate 42, inserting plate 43. Detailed Description of the Invention

[0024] The following are specific embodiments of the invention and in conjunction with the drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] As Figures 1-4 shown, a grooved snap-type anti-interference magnetic ring includes two splittable semi-grooved magnetic rings 1. The semi-grooved magnetic ring 1 is composed of a semi-grooved housing 2 and a semi-grooved magnetic core 3. A clamping groove 21 is provided on the inner circumferential surface of the semi-grooved housing 2. The semi-grooved magnetic core 3 is embedded in the clamping groove 21. A fixing plate 4 is provided at the notch of the clamping groove 21 to cover the semi-grooved magnetic core 3. A number of semi-circular wire grooves 41 are provided on the side of the fixing plate 4 away from the semi-grooved magnetic core 3.

[0026] That is, a groove for inserting the semi-grooved magnetic core 3 is provided in the clamping groove 21 of the semi-grooved housing 2, so that each end face of the semi-grooved magnetic core 3 can be in contact with the inner wall of the clamping groove 21, ensuring the stability of the semi-grooved magnetic core 3 during use. An additional fixing plate 4 is provided at the notch to cover the semi-grooved magnetic core 2, preventing the semi-grooved magnetic core 2 from falling off the housing due to vibration or other reasons. At the same time, the fixing plate 4 is set to swing and buckle open and close, which will not prevent the replacement and disassembly of the semi-grooved magnetic core 3, improving the durability of the anti-interference magnetic ring.

[0027] In this embodiment, the fixing plate 4 includes a pressing plate 42 and a plug plate 43. The pressing plate 42 is arranged on the plug plate 43. One end of the plug plate 43 is hinged to the inner wall of the card slot 21, and the other end of the plug plate 43 is clamped to the inner wall of the card slot 21.

[0028] The fixing plate 4 is arranged in the form of a flip cover. The plug plate 43 is used as one end of the swing arm, which is hinged to the housing at one end and forms a tenon structure with the wall of the card slot 21 at the other end for locking. The semi-grooved magnetic core 3 is further fixed by the fixing plate 4 that can be opened and closed, making the replacement and disassembly of the semi-grooved magnetic core 3 more stable and convenient.

[0029] In this embodiment, the pressing plate 42 is erected on the two plug plates 43. The pressing plate 42 abuts against the semi-grooved magnetic core 3, and the plug plates 43 are inserted between the inner wall of the card slot 21 and the semi-grooved magnetic core 3.

[0030] The distance between the two plug plates 43 is exactly equal to the width of the semi-grooved magnetic core 3. When the fixing plate 4 is locked, the semi-grooved magnetic core 3 can be inserted between the two plug plates 43, and the two plug plates 43 just contact the inner wall of the card slot 21. Therefore, the locking of the fixing plate 4 can also maintain and correct the angular position of the semi-grooved magnetic core 3, so that it has a proper position for the two magnetic cores to have good contact after being joined together.

[0031] In this embodiment, avoiding through grooves are provided at both ends of the pressing plate 42, so that the two arc-shaped ends of the semi-grooved magnetic core 3 can extend out of the card slot 21 through the avoiding through grooves between the two plug plates 43.

[0032] The magnetic cores in the two semi-grooved magnetic rings 1 are divided into two semi-grooved magnetic cores 3 by the midline of the arc edge in the form of a grooved ring. The two ends of a single semi-grooved magnetic core 3 bend towards the same side and just extend out from the avoiding through grooves to contact the ends of the other half magnetic core, forming a complete shielding loop, while the pressing plate 42 abuts against the straight edge of the inner ring of the semi-grooved magnetic core 3 for pressing and fixing.

[0033] In this embodiment, a plurality of semi-circular wire grooves 41 are provided on the side of the pressing plate 42 away from the semi-grooved magnetic core 3.

[0034] The fixing plates 4 on the two semi-grooved magnetic rings 1 are symmetrically arranged when the semi-circular wire grooves 41 are opened. When the two semi-grooved magnetic rings 1 are joined together, the semi-circular wire grooves 41 become complete wire passing holes, and this setting can solve the problem of wire passing for the non-separable magnetic ring.

[0035] In this embodiment, limiting blocks 22 are provided on two symmetric side walls of the card slot 21. The semi-grooved magnetic core 3 is inserted between the two limiting blocks 22, and the two arc-shaped ends of the semi-grooved magnetic core 3 abut against the inner wall of the card slot 21.

[0036] The length of the slot 21 is equivalent to the length of the half-slot core 3, and can be matched with the two ends of the half-slot core 3. The width of the slot 21 is greater than the half-slot core 3. Limiting blocks 22 of the same size are set on the inner walls of the two long sides. The spacing between the two limiting blocks 22 is equal to the width of the half-slot core 3, so that the half-slot core 3 can be inserted therein.

[0037] At the same time, the limit block 22 also serves as a limit baffle when the fixing plate 4 is pressed down, so that the fixing plate 4 is kept in a balanced position after being locked, and the half-slot-shaped magnetic core will not be over-pressed. In addition, compared with designing the slot 21 to be the same width as the half-slot-shaped magnetic core 3, there is more space for grabbing the magnetic core after opening the fixing plate 4 and locking it, which is convenient for replacing and disassembling the magnetic core.

[0038] In this embodiment, one side of the insert plate 43 abuts against the limiting block 22 so that the opposite side of the abutting surface is flush with the slot 21, so that the covering position of the fixing plate 4 can be consolidated after the two half-slot-shaped magnetic rings 1 are assembled.

[0039] In this embodiment, the two half slot-shaped magnetic rings 1 are assembled with the clamping grooves 21 facing each other, the arc ends of the two half slot-shaped magnetic cores 3 are in contact with each other, and the semicircular wire grooves 41 are assembled into a complete circular wire groove.

[0040] In this embodiment, one end of the two half-slot-shaped magnetic rings 1 is connected by a hinge, and the other end is provided with a buckle 11.

[0041] In this embodiment, the hinged portion between the fixing plate 4 and the semi-trough-shaped housing 2 is arranged on a side close to the buckle 11 .

[0042] Since the closer the two half-slot magnetic rings 1 are to the hinge, the greater the pressure they are subjected to, the buckle side of the fixing plate 4 and the half-slot shell 2 are arranged on the hinge connection side of the two half-slot magnetic rings 1, so that the fixing plate 4 and the half-slot magnetic rings 1 have opposite opening and closing directions, and when the two half-slot magnetic rings 1 are opened, the locking of the fixing plate 4 will not be linked to open, thereby preventing the half-slot magnetic core 3 from accidentally falling out of the slot 21.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A slot-shaped snap-on anti-interference magnetic ring, comprising two half-slot-shaped magnetic rings (1) that can be spliced ​​together, wherein the half-slot-shaped magnetic ring (1) is composed of a half-slot-shaped shell (2) and a half-slot-shaped magnetic core (3), characterized in that: A slot (21) is provided on the inner ring surface of the half-slot shell (2), the half-slot magnetic core (3) is embedded in the slot (21), a fixing plate (4) is provided at the notch of the slot (21) and covers the half-slot magnetic core (3), and a plurality of semicircular wire grooves (41) are provided on a side of the fixing plate (4) away from the half-slot magnetic core (3).

2. The groove-shaped snap-on anti-interference magnetic ring according to claim 1, characterized in that: The fixing plate (4) comprises a pressing plate (42) and an inserting plate (43); the pressing plate (42) is arranged on the inserting plate (43); one end of the inserting plate (43) is hinged to the inner wall of the card slot (21); and the other end of the inserting plate (43) is snap-fitted to the inner wall of the card slot (21).

3. The groove-shaped snap-on anti-interference magnetic ring according to claim 2, characterized in that: The pressing plate (42) is mounted on the two inserting plates (43), the pressing plate (42) is in contact with the half-slot-shaped magnetic core (3), and the inserting plate (43) is inserted between the inner wall of the slot (21) and the half-slot-shaped magnetic core (3).

4. The groove-shaped snap-on anti-interference magnetic ring according to claim 3, characterized in that: Both ends of the pressing plate (42) are provided with escape slots, so that the two arc-shaped ends of the semi-slot-shaped magnetic core (3) can extend from the escape slot between the two plug plates (43) to the notch of the clamping slot (21).

5. The groove-shaped snap-on anti-interference magnetic ring according to claim 2, characterized in that: A plurality of semicircular wire grooves (41) are formed on a side of the pressing plate (42) away from the semi-slot-shaped magnetic core (3).

6. The groove-shaped snap-on anti-interference magnetic ring according to claim 2, characterized in that: Limiting blocks (22) are provided on two symmetrical side walls of the slot (21); the half-slot-shaped magnetic core (3) is inserted between the two limiting blocks (22); and the two arc-shaped ends of the half-slot-shaped magnetic core (3) are against the inner wall of the slot (21).

7. The groove-shaped snap-on anti-interference magnetic ring according to claim 6, characterized in that: One side of the inserting plate (43) abuts against the limiting block (22), so that the opposite side of the abutting surface is flush with the notch of the card slot (21).

8. The groove-shaped snap-on anti-interference magnetic ring according to claim 1, characterized in that: The two half-slot-shaped magnetic rings (1) and the clamping groove (21) are assembled facing each other, the arc ends of the two half-slot-shaped magnetic cores (3) are in contact with each other, and the semicircular wire grooves (41) are assembled into a complete circular wire groove.

9. The groove-shaped snap-on anti-interference magnetic ring according to claim 8, characterized in that: One end of the two half-groove-shaped magnetic rings (1) is connected by a hinge, and the other end is provided with a buckle (11).

10. The groove-shaped snap-on anti-interference magnetic ring according to claim 9, characterized in that: The hinged portion between the fixing plate (4) and the semi-trough-shaped housing (2) is arranged on a side close to the buckle (11).

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