CN115274250A

CN115274250A - Anti-interference magnetic ring inductor with novel structure

Info

Publication number: CN115274250A
Application number: CN202210814570.9A
Authority: CN
Inventors: 马坤林; 罗辉; 江雯英
Original assignee: Xiamen Yike Electronic Co ltd
Current assignee: Xiamen Yike Electronic Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-01

Abstract

The invention discloses an anti-interference magnetic ring inductor with a new structure, which comprises a left shell, a right shell, a left magnetic core and a right magnetic core, wherein a left transverse plate is arranged above and below the left shell along the radial direction, the left end of the left transverse plate is connected with the left shell, a clamping ring with an opening is fixed at the right end of the left transverse plate, an arc-shaped movable plate is coaxially arranged on the inner side of the clamping ring and driven by an elastic sheet, one end of the elastic sheet is connected and fixed with the clamping ring, the other end of the elastic sheet is connected with a left butt-joint block, a right transverse plate is arranged above and below the right shell along the radial direction, a right butt-joint block is fixed at the left end of the right transverse plate, the right end of the right transverse plate is connected with a bent right connecting plate, and the right connecting plate is driven by a movable block in the right shell to deform. This magnetic ring inductor can make butt joint structure accomplish the butt joint through the casing about the extrusion, can firmly fix the magnetic ring inductor on the cable steadily after the butt joint, and need not with the help of external instrument when pulling down it from the cable, and easy operation is convenient.

Description

Anti-interference magnetic ring inductor with novel structure

Technical Field

The invention relates to a magnetic ring inductor, in particular to an anti-interference magnetic ring inductor with a novel structure.

Background

The anti-interference magnetic ring inductor is a common anti-interference element in an electronic circuit, has a good inhibition effect on high-frequency noise, and enables electronic equipment to reach corresponding international standards of electromagnetic compatibility (EMI/EMC) and electrostatic discharge.

When the anti-interference test is performed on the anti-interference magnetic ring, it is necessary to select a magnetic core having a size corresponding to a frequency band of the high-frequency noise, and the anti-interference magnetic ring having the magnetic core having the size is inserted into the cable, and then the test can be started.

Referring to fig. 1 and 2, the conventional anti-interference magnetic ring inductor includes a left housing and a rear housing, which are semi-cylindrical, and semicircular wire passing holes are formed at the top and bottom of the left housing and the right housing. Placing the left magnetic core of the semicircular ring shape in the left shell, placing the right magnetic core of the semicircular ring shape in the right shell, respectively sleeving the left shell together with the left magnetic core and the right shell together with the right magnetic core at two sides of a cable, forcibly extruding the left shell and the right shell to clamp the clamping block on the right shell into the bayonet of the clamping buckle on the left shell, combining the two shells together, and surrounding the magnetic cores to form a complete magnetic ring at the moment.

In fact, when performing an anti-interference test, to form a seamless magnetic ring, the inner diameter of the magnetic core is generally selected to be larger than the outer diameter of the cable, and the diameter of the wire through hole is generally larger than the outer diameter of the cable. Therefore, when the magnetic ring inductor is assembled on the periphery of the cable, the magnetic ring inductor cannot be well fixed, if the cable is vertical, the magnetic ring inductor can slide down along the cable, so that the test cannot be completed smoothly, and the two half shells are connected by the buckle, so that a tool is needed to disassemble the magnetic ring inductor, and the operation is inconvenient and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an anti-interference magnetic ring inductor with a new structure, which can effectively fix the magnetic ring inductor on a cable and is more convenient to disassemble.

In order to achieve the purpose, the invention provides the following technical scheme:

an anti-interference magnetic ring inductor with a new structure comprises a left shell and a right shell which are in a semi-cylindrical shape, and a left magnetic core and a right magnetic core which are in a semi-circular ring shape, wherein semi-circular wire passing holes are formed in the centers of the top and the bottom of the left shell and the right shell, a left transverse plate is arranged above and below the left shell along the radial direction of the left shell, the front end of the left transverse plate extends to the edge of the wire passing holes, the left end of the left transverse plate is connected with the left shell through a left connecting plate, a clamping ring with an opening is fixed at the right end of the left transverse plate, the clamping ring is coaxial with the wire passing holes, the opening of the clamping ring faces towards the left side of the left transverse plate, an arc-shaped movable plate is coaxially arranged on the inner side of the clamping ring, a push rod capable of moving back and forth along the radial direction of the clamping ring is arranged on the clamping ring, one end of the push rod extends into the clamping ring and is connected and fixed with the middle part of the movable plate, the other end of the push rod penetrates out of the clamping ring to the outer side of the clamping ring, a bent elastic sheet is also arranged on the outer side of the clamping ring, a hollow elastic sheet is connected and fixed with the inner side of the left hook block, and a hollow hook block is arranged on the inner side of the hollow hook sleeve, and connected with a limit block, and a hollow hook block, and a limit block, the hollow hook block, and a hollow hook block is arranged on the hollow hook block; the top and the below of right side casing all are provided with right diaphragm along its radial, the left end of right side diaphragm extends to the edge of crossing the line hole, the right-hand member of right side diaphragm is provided with vertical right connecting plate, the right-hand member of right side diaphragm and the end connection of right connecting plate, right side connecting plate has elasticity, right side connecting plate is the curve type bending to the outside of casing right, the left end of right side diaphragm is fixed with the right butt joint piece of "L" shape, the crotch portion of right side butt joint piece is used for hooking into the hook inslot on the left butt joint piece, the right side portion of right side casing is provided with can follow the radial right movable block that makes a round trip the activity of right side casing, the one end of right side movable block stretches into in the right side casing and the end of this end extends to both sides and forms right spacing rank, be provided with right elastic block between the inner wall of right spacing rank and right casing, the other end of right side movable block stretches out the outside of right side casing and is connected fixedly with the middle part of right connecting plate, the top and the below that lie in right side movable block on the right side outer wall of right side casing still are provided with articulated first seat and second seat respectively, articulated through first connecting plate and second casing rotation seat.

As a preferable scheme: the left side wall outside of left side casing is provided with the cover body, the internal portion of cover is the cavity, be provided with the left movable block that can follow its radial activity of making a round trip on the left side wall of left side casing, the one end of left side movable block stretches into in the left casing and the end of this end extends to both sides and forms left spacing rank, it has left elasticity piece to set up to bond between the inner wall of left side spacing rank and left casing, the terminal surface that the other end of left side movable block stretched out to the outside of left casing and this end sets up to the spigot surface of slope, left side connecting plate runs through the cover body, left side connecting plate slides around with the cover body is connected and can slide, still be provided with the spring that is on a parallel with left connecting plate slip direction in the cover body, the both ends of spring are connected with the inner wall and the left connecting plate of the cover body respectively, the spigot surface of left side movable block contacts with the side of left connecting plate.

As a preferable scheme: the left diaphragm includes left front diaphragm and left back diaphragm, the clamp ring includes preceding semi-ring and latter half ring, the left end of left front diaphragm is fixed with the end connection of left connecting plate, the right-hand member of preceding semi-ring and left front diaphragm is connected fixedly, the left end of left back diaphragm is connected with the end rotation of left connecting plate, back semi-ring is connected fixedly with the right-hand member of left back diaphragm, the ejector pin sets up on preceding semi-ring, the cover is equipped with the sliding sleeve on the diaphragm before the left side, be provided with the connecting rod between diaphragm before the left side and the left back diaphragm, the both ends of connecting rod rotate with left back diaphragm and sliding sleeve respectively and are connected, be provided with locking bolt on the sliding sleeve, locking bolt supports tight left front diaphragm with sliding sleeve threaded connection and its tip.

As a preferable scheme: and smooth silica gel pads are arranged on the inner arc surfaces of the clamping ring and the movable plate.

As a preferable scheme: and elastic left positioning blocks and elastic right positioning blocks are respectively fixed on the inner walls of the left shell and the right shell close to the respective butt joint surfaces.

As a preferable scheme: the bottom of left side casing and right casing is provided with vertical left adjusting bolt and right adjusting bolt respectively, left side adjusting bolt and left casing threaded connection and run through the bottom of left casing, right side adjusting bolt and right casing threaded connection and run through the bottom of right casing.

Compared with the prior art, the invention has the advantages that: the left shell and the right shell of the magnetic ring inductor are provided with the right butt joint structures matched with each other, the butt joint of the butt joint structures can be completed by extruding the left shell and the right shell, the magnetic ring inductor can be firmly and stably fixed on a cable after the butt joint of the butt joint structures is completed, the magnetic ring inductor is detached from the cable without an external tool, and the operation is very simple and convenient.

Drawings

FIG. 1 is a schematic diagram of an internal structure of a conventional magnetic loop inductor;

FIG. 2 is a schematic diagram of an assembly structure of a conventional magnetic loop inductor;

FIG. 3 is a side view of a magnetic loop inductor in accordance with a first embodiment;

FIG. 4 is a cross-sectional view of the left housing in the first embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is an enlarged view of the portion B in FIG. 4;

FIG. 7 is a schematic diagram illustrating an internal structure of the left housing according to the first embodiment;

FIG. 8 is an enlarged view of the portion C of FIG. 7;

FIG. 9 is a schematic view of the internal structure of the right housing according to the first embodiment;

FIG. 10 is an enlarged view of section D of FIG. 9;

fig. 11 is a schematic structural view of the left cross plate in the second embodiment.

1, left shell; 2. a right housing; 3. a wire passing hole; 4. a magnetic core; 5. buckling; 6. a bayonet; 7. a clamping block; 8. a cable; 9. a left cross plate; 901. a left front cross plate; 902. a left rear transverse plate; 10. a left connecting plate; 11. a clamping ring; 1101. a front half ring; 1102. a rear half ring; 12. a movable plate; 13. a first through groove; 14. a top rod; 15. an elastic sheet; 16. a limiting sleeve; 17. a left butt-joint block; 18. a hook groove; 19. a cover body; 20. a cavity; 21. a third through groove; 22. a left movable block; 23. a notch; 24. a slider; 25. a chute; 26. a guide rail; 27. a spring; 28. a left limit level; 29. a left elastic block; 30. a left locating block; 31. a right transverse plate; 32. a right connecting plate; 33. a second through groove; 34. a right movable block; 35. a right limit step; 36. a right elastic block; 37. a right positioning block; 38. a first hinge mount; 39. a second hinge mount; 40. a right butt-joint block; 41. a left adjusting bolt; 42. a right adjusting bolt; 43. a connecting rod; 44. a sliding sleeve; 45. a locking bolt; 46. a silica gel pad.

Detailed Description

The first embodiment is as follows:

referring to fig. 3 and 4, an anti-interference magnetic ring inductor with a new structure comprises a left shell 1 and a right shell 2 in a semi-cylindrical shape, and a left magnetic core 4 and a right magnetic core 4 in a semi-circular shape (the magnetic cores 4 are not shown in the figure), wherein semi-circular wire passing holes 3 are respectively arranged at the top and bottom centers of the left shell 1 and the right shell 2.

The left shell 1 is provided with a left transverse plate 9 along the radial direction above and below, the front end of the left transverse plate 9 extends to the edge of the wire passing hole 3, the left end of the left transverse plate 9 is connected with the left shell 1 through a left connecting plate 10, the right end of the left transverse plate 9 is fixed with a clamping ring 11 with an opening, the clamping ring 11 is coaxial with the wire passing hole 3, and the opening of the clamping ring 11 faces the left side of the left transverse plate 9.

Referring to fig. 4 and 5, a movable plate 12 having a circular arc shape is coaxially disposed inside the clamp ring 11, and a central angle formed between the center of the movable plate 12 and the opening center of the clamp ring 11 is 90 degrees.

A first through groove 13 is formed in the clamping ring 11, an ejector rod 14 is arranged in the first through groove 13 and in the radial direction of the clamping ring 11, the ejector rod 14 can move back and forth in the radial direction of the clamping ring 11, one end of the ejector rod 14 extends into the clamping ring 11 and is fixedly connected with the middle of the movable plate 12, the other end of the ejector rod 14 penetrates out of the clamping ring 11, a bent elastic piece 15 is further arranged on the outer side of the clamping ring 11, one end of the elastic piece 15 is fixedly connected with the clamping ring 11, the middle of the elastic piece 15 is fixedly connected with the end portion of the ejector rod 14, a hollow limiting sleeve 16 is further arranged on the outer side of the clamping ring 11 and close to the end portion of the clamping ring 11, a left butt joint block 17 is further arranged on the outer side of the end portion of the clamping ring 11, the other end of the elastic piece 15 movably penetrates through the limiting sleeve 16 and is connected with the left butt joint block 17, a vertical hook groove 18 is formed in the left butt joint block 17 and deviates from the inner side of the clamping ring 11, and the hook groove 18 inclines towards the ejector rod 14.

When the left butt joint block 17 is pulled outwards, the elastic piece 15 can be pulled outwards, so that the ejector rod 14 is driven to move towards the inner side of the clamping ring 11, the movable plate 12 is driven to approach the center of the clamping ring 11, and the elastic piece 15 is stretched, deformed and stored with energy in the process; when the external force acting on the left docking block 17 is removed, the elastic piece 15 releases energy and gradually returns to the original shape, so that the ejector rod 14 is driven to move outwards, and the movable plate 12 is pulled back to the original position.

Referring to fig. 3 and 9, right transverse plates 31 are arranged above and below the right housing 2 along the radial direction of the right housing, the left end of each right transverse plate 31 extends to the edge of the corresponding wire passing hole 3, a vertical right connecting plate 32 is arranged at the right end of each right transverse plate 31, the right ends of the right transverse plates 31 above and below the right housing 2 are respectively connected with the upper end and the lower end of the right connecting plate 32, the right connecting plates 32 have elasticity, and the right connecting plates 32 are curved towards the outer side of the right housing 2.

The left end of the right transverse plate 31 is fixed with an L-shaped right butt-joint block 40, and the hook part of the right butt-joint block 40 is used for hooking into the hook groove 18 on the left butt-joint block 17.

A second through groove 33 is formed in the right side portion of the right shell 2, a right movable block 34 capable of moving back and forth along the radial direction of the right shell 2 is arranged in the second through groove 33, one end of the right movable block 34 extends into the right shell 2, the end of the end extends to two sides to form a right limiting step 35, the width of the right limiting step 35 is larger than that of the second through groove 33, and a right elastic block 36 is arranged between the right limiting step 35 and the inner wall of the right shell 2. The other end of the right movable block 34 extends to the outside of the right housing 2 and is fixedly connected with the middle part of the right connecting plate 32. A first hinging seat 38 and a second hinging seat 39 are further respectively arranged on the right outer wall of the right shell 2 and above and below the right movable block 34, and the right connecting plate 32 is rotatably connected with the right shell 2 through the first hinging seat 38 and the second hinging seat 39. The structure makes the right connecting plate 32 generate a certain torsional pendulum when the right movable block 34 moves.

The working principle of the anti-interference magnetic ring inductor is as follows:

put into left magnetic core 4 in left casing 1, put into right magnetic core 4 in right casing 2, overlap left casing 1 and left magnetic core 4 and right casing 2 and right magnetic core 4 respectively at the both sides of cable 8, there is great distance between right butt joint piece 40 and the left butt joint piece 17 this moment, send cable 8 into clamp ring 11. The left shell 1 and the right shell 2 are extruded with force to enable the left magnetic core 4 and the right magnetic core 4 to surround to form a complete magnetic ring, and a certain distance exists between the left butt joint block 17 and the right butt joint block 40. Then continue to push two casings hard, right magnetic core 4 begins to push right movable block 34 this moment, make right movable block 34 outwards move, right elastic block 36 is pressed and is out of shape, right connecting plate 32 becomes straight state by the bending gradually this moment, right butt joint block 40 is close to left butt joint block 17 gradually in this in-process, when left casing 1 contacts with right casing 2, right connecting plate 32 just becomes straight state, the crotch position of right butt joint block 40 is located the oblique place ahead of hook slot 18 of left butt joint block 17 this moment, there is certain butt joint surplus between left butt joint block 17 and the right butt joint block 40, this butt joint surplus provides the activity space for stirring left butt joint block 17, only need stir left butt joint block 17 with the finger this moment, just can make the crotch portion hook of right butt joint block 40 hook into the hook slot 18 of left butt joint block 17. The left and right housings can be released, after the left and right housings are released, the right elastic block 36 begins to restore its shape, the elastic force generated by the right elastic block 36 drives the right movable block 34 to move towards the inside of the right housing 2, at this time, the center of the right connecting plate 32 is pulled towards the inside of the right housing 2, so that the right connecting plate 32 is gradually bent outwards, at this time, the upper end and the lower end of the right connecting plate 32 begin to be away from the center of the right housing 2, so as to drive the right cross plate 31 to move outwards, so that the right butt-joint block 40 pulls the left butt-joint block 17 to move towards the right side of the right housing 2, in this process, the elastic sheet 15 is stretched, so as to drive the movable plate 12 to move towards the center of the clamping ring 11, until the movable plate 12 contacts with the cable 8 in the clamping ring 11, at this time, the cable 8 is clamped by the movable plate 12 and the rear portion of the clamping ring 11, so that the whole magnetic ring inductor is firmly and reliably fixed on the cable 8.

Due to the fact that the right connecting plate 32 has a certain deformation space, the clamping ring 11 and the movable plate 12 can clamp the cable 8 with a certain outer diameter range, and the application range of the magnetic ring inductor can be expanded.

When the magnetic ring inductor needs to be disassembled, the left shell and the right shell are extruded forcibly again, so that the right connecting plate 32 deforms, the left butt joint block 17 and the right butt joint block 40 are connected loosely, the left butt joint block 17 is stirred forcibly, the left butt joint block 17 can be separated from the right butt joint block 40, and then the left shell 1 and the right shell 2 can be disassembled.

Referring to fig. 3, 4, 6, 7 and 8, in this embodiment, a cover 19 is disposed outside a left side wall of the left casing 1, the cover 19 is connected and fixed with the left casing 1, a cavity 20 is disposed inside the cover 19, a third through groove 21 is disposed on the left side wall of the left casing 1, a left movable block 22 capable of moving back and forth along a radial direction of the left casing 1 is disposed in the third through groove 21, one end of the left movable block 22 extends into the left casing 1, and an end of the end extends to both sides to form a left limit step 28, a width of the left limit step 28 is greater than a width of the third through groove 21, and a left elastic block 29 is disposed between the left limit step 28 and an inner wall of the left casing 1. The front and back surfaces of the left elastic block 29 are respectively bonded and fixed with the left limit step 28 and the inner wall of the left shell 1. The other end of the left movable block 22 extends to the outside of the left housing 1 and the end surface of the end is set as an inclined guide surface.

The left connecting plate 10 penetrates through the cover body 19, a sliding block 24 is arranged on the left connecting plate 10, a horizontal sliding groove 25 is arranged on the sliding block 24, the sliding groove 25 is perpendicular to the left transverse plate 9, a guide rail 26 parallel to the sliding groove 25 is arranged on the inner wall of the cover body 19, and the sliding groove 25 is buckled on the guide rail 26. The structure is such that the left connecting plate 10 can move back and forth along the guide rail 26.

A spring 27 parallel to the guide rail 26 is further arranged in the cover body 19, two ends of the spring 27 are respectively connected with the inner wall of the cover body 19 and the left connecting plate 10, and the guide surface of the left movable block 22 is contacted with the side edge of the left connecting plate 10.

In the initial state, i.e., when the left movable block 22 is not pressed, the left lateral plate 9 is aligned with the right lateral plate 31.

In this embodiment, in order to reduce the width of the cover 19, a notch 23 is formed on the side of the left connecting plate 10, and the guide surface of the left movable block 22 contacts with the side of the notch 23.

When the left movable block 22 moves outwards along the radial direction of the left shell 1, the guide surface drives the left connecting plate 10 to move backwards, and the spring 27 is deformed to store energy in the process; and when the left movable block 22 moves inward in the radial direction of the left housing 1, the elastic force of the spring 27 drives the left connecting plate 10 to move reversely until it is restored.

After the mechanism is added, when the magnetic ring inductor is installed, the left shell 1 and the right shell 2 are extruded forcefully to enable the left magnetic core 4 and the right magnetic core 4 to surround to form a complete magnetic ring, and a certain distance exists between the left butt joint block 17 and the right butt joint block 40. Then, the two shells are continuously extruded with force, the right magnetic core 4 begins to extrude the right movable block 34, the right movable block 34 moves outwards, the right elastic block 36 is deformed under pressure, the right connecting plate 32 gradually changes from a bent state to a straight state, the right butt joint block 40 gradually approaches to the left butt joint block 17 in the process, when the left shell 1 contacts with the right shell 2, the right connecting plate 32 just changes to the straight state, and the hook part of the right butt joint block 40 is positioned in the oblique front of the hook groove 18 of the left butt joint block 17.

Concurrently with the above process are also: the left magnetic core 4 begins to extrude the left movable block 22, so that the left movable block 22 moves outwards, the guide surface of the left movable block 22 drives the left connecting plate 10 and the two groups of left transverse plates 9 to move backwards integrally, the left elastic block 29 deforms under pressure in the process, when the left shell 1 contacts the right shell 2, the left connecting plate 10 and the two groups of left transverse plates 9 just move to the last position, the left butt joint block 17 and the right butt joint block 40 have a front-back distance, and exactly, the left butt joint block 17 is located behind the right butt joint block 40.

The left and right housings may then be released and when the left and right housings are released the left and right spring blocks 29 and 36 begin to return to their shapes and the right butt block 40 begins to move toward the right side of the right housing 2.

At the same time, the left elastic block 29 starts to restore the original shape, the left elastic block 29 and the elasticity of the spring 27 jointly act on the left movable block 22, so that the left movable block 22 starts to move towards the inner side of the left shell 1, at this time, the left connecting plate 10 and the two groups of left transverse plates 9 start to slide forwards along the guide rails 26, when the left movable block slides to a certain specific position, the hook part of the right butt joint block 40 moving towards the right can just hook into the hook groove 18 of the left butt joint block 17 moving forwards, then the left butt joint block 17 continues to move forwards, and the right butt joint block 40 continues to move towards the right until the original position is returned. Since the hook groove 18 is obliquely arranged, the first butt joint block and the second butt joint block do not disengage in the subsequent movement.

The left butt joint block 17 and the right butt joint block 40 are automatically butted by adding the mechanism, the left butt joint block 17 does not need to be manually shifted to realize hooking butt joint, and a magnetic ring inductor is simpler and more convenient to install.

Referring to fig. 7 and 9, in the present embodiment, a left positioning block 30 and a right positioning block 37 having elasticity are respectively fixed to the inner walls of the left housing 1 and the right housing 2 at positions close to the respective abutting surfaces. The locating piece can play the assistance-localization real-time effect to magnetic core 4 when filling magnetic core 4 into to the casing, can make two sets of magnetic cores 4 more accurate butt joints, can make magnetic core 4 stably exert pressure to the elastic block again.

In addition, as shown in fig. 1, in the present embodiment, a left adjusting bolt 41 and a right adjusting bolt 42 are respectively disposed at the bottom of the left casing 1 and the right casing 2 in a vertical direction, the left adjusting bolt 41 is screwed with the left casing 1 and penetrates through the bottom of the left casing 1, and the right adjusting bolt 42 is screwed with the right casing 2 and penetrates through the bottom of the right casing 2. The depth of the adjusting bolt entering the shell is adjusted by screwing the adjusting bolt, so that the shell can limit and position the magnetic cores 4 with different heights.

The second embodiment:

the present embodiment improves the structure of the left cross plate 9 and the clamp ring 11 on the basis of the first embodiment.

Referring to FIG. 11, in this embodiment the left cross plate 9 includes a left front cross plate 901 and a left rear cross plate 902 and the clamp ring 11 includes a front half ring 1101 and a rear half ring 1102. The left end of the left front transverse plate 901 is fixedly connected with the end of the left connecting plate 10, the front half ring 1101 is fixedly connected with the right end of the left front transverse plate 901, the left end of the left rear transverse plate 902 is rotatably connected with the end of the left connecting plate 10, the rear half ring 1102 is fixedly connected with the right end of the left rear transverse plate 902, and the push rod 14 is arranged on the front half ring 1101.

A sliding sleeve 44 is sleeved on the left front transverse plate 901, a connecting rod 43 is arranged between the left front transverse plate 901 and the left rear transverse plate 902, and two ends of the connecting rod 43 are respectively rotatably connected with the left rear transverse plate 902 and the sliding sleeve 44. The sliding sleeve 44 can drive the connecting rod 43 to swing, so as to drive the left rear transverse plate 902 to rotate, thereby adjusting the width of the clamping opening of the clamping ring 11, so that the clamping ring 11 can clamp cables 8 with different outer diameters.

The sliding sleeve 44 is provided with a locking bolt 45, and the locking bolt 45 is in threaded connection with the sliding sleeve 44 and the end part of the locking bolt abuts against the left front transverse plate 901. After the locking bolt 45 is screwed down, the sliding sleeve 44 can be locked, and the sliding sleeve 44 can be unlocked by unscrewing the locking bolt 45.

In this embodiment, a smooth silicone pad 46 is further disposed on the inner arc surfaces of the rear half ring 1102 and the movable plate 12. The smooth silicone pad 46 can generate a larger friction force, thereby increasing the sliding friction force between the clamping ring 11 and the cable 8, so that the magnetic ring inductor is less prone to loosening.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims

1. The utility model provides an anti-interference magnetic ring inductor of new construction, is including the left casing and the right casing that are the semicircle cylindric and be semicircular ring shape left magnetic core and right magnetic core, all is provided with semicircular line hole, characterized by at the top of left casing and right casing and bottom center: the left and the lower parts of the left shell are both provided with a left transverse plate along the radial direction, the front end of the left transverse plate extends to the edge of a wire passing hole, the left end of the left transverse plate is connected with the left shell through a left connecting plate, the right end of the left transverse plate is fixedly provided with a clamping ring with an opening, the clamping ring and the wire passing hole are coaxial, the opening of the clamping ring faces to the left side of the left transverse plate, the inner side of the clamping ring is coaxially provided with a circular arc-shaped movable plate, the clamping ring is provided with an ejector rod capable of moving back and forth along the radial direction of the clamping ring, one end of the ejector rod extends into the clamping ring and is fixedly connected with the middle part of the movable plate, the other end of the ejector rod penetrates out of the clamping ring, the outer side of the clamping ring is further provided with a bent elastic sheet, one end of the elastic sheet is fixedly connected with the clamping ring, the middle part of the elastic sheet is fixedly connected with the end part of the ejector rod, the outer side of the clamping ring and the end part of the clamping ring is further provided with a hollow limiting sleeve, the end part of the clamping ring is further provided with a left butt joint block, the inner side of the left butt joint block is provided with a vertical hook groove facing away from the clamping ring, and the ejector rod inclines towards the left butt joint block; the upper part and the lower part of the right shell are both provided with a right transverse plate along the radial direction, the left end of the right transverse plate extends to the edge of the wire passing hole, the right end of the right transverse plate is provided with a vertical right connecting plate, the right end of the right transverse plate is connected with the end part of the right connecting plate, the right connecting plate has elasticity, the right connecting plate is curved towards the outer side of the right shell, the left end of the right transverse plate is fixed with an L-shaped right butt joint block, the hook part of the right butt joint block is used for hooking into the hook groove on the left butt joint block, the right side part of the right shell is provided with a right movable block which can move back and forth along the radial direction of the right shell, the one end of right side movable block stretches into in the right casing and the end of this end extends to both sides and forms right spacing rank, be provided with right elastic block between the inner wall of right spacing rank and right casing, the other end of right side movable block stretches out to the outside of right casing and is connected fixedly with the middle part of right connecting plate, the top and the below that are located right movable block on the right side outer wall of right casing still are provided with the articulated seat of first articulated seat and second respectively, the right connecting plate rotates with right casing through the articulated seat of first articulated seat and second and is connected.

2. The new structure anti-interference magnetic loop inductor defined in claim 1 wherein: the left side wall outside of left side casing is provided with the cover body, the internal portion of cover is the cavity, be provided with the left movable block that can follow its radial activity of making a round trip on the left side wall of left side casing, the one end of left side movable block stretches into in the left casing and the end of this end extends to both sides and forms left spacing rank, it has left elasticity piece to set up to bond between the inner wall of left side spacing rank and left casing, the terminal surface that the other end of left side movable block stretched out to the outside of left casing and this end sets up to the spigot surface of slope, left side connecting plate runs through the cover body, left side connecting plate slides around with the cover body is connected and can slide, still be provided with the spring that is on a parallel with left connecting plate slip direction in the cover body, the both ends of spring are connected with the inner wall and the left connecting plate of the cover body respectively, the spigot surface of left side movable block contacts with the side of left connecting plate.

3. The new structure anti-interference magnetic loop inductor defined in claim 1 wherein: the left side diaphragm includes left front diaphragm and left back diaphragm, the clamp ring includes preceding semi-ring and latter half ring, the left end of left side front diaphragm is fixed with the end connection of left connecting plate, the right-hand member of preceding semi-ring and left front diaphragm is connected fixedly, the left end of left side back diaphragm is rotated with the tip of left connecting plate and is connected fixedly, the back semi-ring is connected fixedly with the right-hand member of left back diaphragm, the ejector pin sets up on preceding semi-ring, the cover is equipped with the sliding sleeve before the left side on the diaphragm, be provided with the connecting rod between left side front diaphragm and the left back diaphragm, the both ends of connecting rod rotate with left back diaphragm and sliding sleeve respectively and are connected, be provided with locking bolt on the sliding sleeve, locking bolt supports tight left front diaphragm with sliding sleeve threaded connection and its tip.

4. The new structure anti-interference magnetic loop inductor defined in claim 1 wherein: and smooth silica gel pads are arranged on the inner arc surfaces of the clamping ring and the movable plate.

5. The new architecture anti-interference magnetic loop inductor as claimed in claim 1, wherein: and elastic left positioning blocks and elastic right positioning blocks are respectively fixed on the inner walls of the left shell and the right shell close to the respective butt joint surfaces.

6. The new structure anti-interference magnetic loop inductor defined in claim 1 wherein: the bottom of left side casing and right casing is provided with vertical left adjusting bolt and right adjusting bolt respectively, left side adjusting bolt and left casing threaded connection and run through the bottom of left casing, right side adjusting bolt and right casing threaded connection and run through the bottom of right casing.