CN115513691A

CN115513691A - Electromagnetic compatibility filter

Info

Publication number: CN115513691A
Application number: CN202211162457.3A
Authority: CN
Inventors: 李兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-23

Abstract

The invention discloses an electromagnetic compatibility filter, which comprises a body, wherein the body at least comprises an incoming wiring terminal and an outgoing wiring terminal, the two wiring terminals comprise a threading hole, a catching mechanism for locking a cable led in from the threading hole is arranged in each wiring terminal, the catching mechanism comprises at least two elastic arc plates which are arranged in a circumferential array relative to the threading hole, and the two elastic arc plates are driven to enable an electric conduction part arranged at the end part of the cable abutted to an arc top to be deformed for clamping; the conducting wire in the body is connected with the elastic arc-shaped plate. The electromagnetic compatibility filter provided by the invention has a simple structure, the cable with the conductive part is inserted into the wiring terminal, and the catching mechanism actively pulls and locks the cable into the wiring terminal, so that the cable is connected with the body, and the operation is very convenient and rapid.

Description

Electromagnetic compatibility filter

Technical Field

The invention relates to the technical field of electromagnetic compatibility filters, in particular to an electromagnetic compatibility filter.

Background

According to publication (bulletin) No.: CN104953802a, published (announced): 2015-09-30, discloses an electromagnetic compatibility filter, which comprises a current-carrying conductor and a plurality of capacitors, wherein the capacitors are distributed on the periphery of the current-carrying conductor, one end of each capacitor is electrically connected with the current-carrying conductor through a first conductor, and the other end of each capacitor is electrically connected with the grounding end of the filter through a second conductor; the first conductor and the second conductor are both annular and planar. The filter has a simple structure, the number of the components is small, the cost and the size of the filter can be effectively reduced, the equivalent inductance of a plurality of capacitors is the parasitic inductance of a single capacitor divided by the number of the capacitors, so that the parasitic inductance of the capacitors is reduced, meanwhile, the first conductor and the second conductor are both annular planes and can be equivalent to a plurality of radial conductors, a magnetic field generated by each conductor can be counteracted, and the parasitic inductance generated by the connecting conductor is reduced; the structure formed by the capacitor and the connecting conductor can effectively shield the interference between the input and the output of the filter, and further improve the filtering performance.

According to publication (bulletin) No.: CN107210669a, published (announced): 2017-09-26, an electromagnetic compatibility filter is disclosed, the variable speed drive (104) including a converter connected to an AC source to convert an input voltage to a boosted DC voltage. A DC link connected to the converter filters the DC voltage from the converter stage. An inverter converts the DC link voltage to variable voltage and variable frequency AC power. The electromagnetic compatibility filter includes a series RC circuit from a phase-to-ground circuit for each input phase of the converter.

The basic principles of an emc filter and the associated fields of application and functions are known in the art, including the two prior patents mentioned above. The installation of the known electronic device mainly depends on the wiring terminal, and the connection between the cable and the electronic device is realized by driving the reed to press and fix the cable through the elastic screw, which is a common technology, and the technology also has a general disadvantage: the firm effect that relies on the screw to screw up completely of pressing of cable copper line is confirmed, receives external factor to disturb that the screw must appear becoming flexible, causes the circuit bad contact.

Disclosure of Invention

It is an object of the present invention to provide an electromagnetic compatibility filter that solves the above problems.

In order to achieve the above purpose, the invention provides the following technical scheme: an electromagnetic compatibility filter comprises a body, wherein the body at least comprises an incoming connecting terminal and an outgoing connecting terminal, the two connecting terminals comprise a threading hole, a catching mechanism for locking a cable led in from the threading hole is arranged in each connecting terminal, the catching mechanism comprises at least two elastic arc-shaped plates which are arranged in a circumferential array mode relative to the threading hole, and the two elastic arc-shaped plates are driven to enable an arc top to abut against a conductive part arranged at the end part of the cable to be deformed so as to be clamped;

the conducting wire in the body is connected with the elastic arc-shaped plate.

Preferably, the outer arc surface of the elastic arc-shaped plate is provided with a plurality of elastic pieces, and the elastic pieces are deformed in an abutting mode with the conductive part.

Preferably, the elastic member comprises a convex part and an extension part arranged at an included angle of 110-120 degrees with the convex part, and the joint of the extension part and the convex part forms an abutting part, wherein:

when the abutting part abuts against the surface of the conductive part, the extending part deforms and draws close to the elastic arc-shaped plate.

Preferably, the end part of the extension part is provided with an arc part, the arc part is wrapped with a flexible rubber soft block, and the arc part is used for enabling the flexible rubber soft block to contact with the surface of the conductive part for deformation.

Preferably, the extending portions are distributed along the conductive portion introducing direction.

Preferably, the capturing mechanism includes a corner plate member, an elastic arc-shaped plate is disposed at a port of the corner plate member, and the conductive portion pushes against the two elastic arc-shaped plates to drive the two corner plate members to rotate synchronously, so that the two elastic arc-shaped plates complete the following two stations:

the first station deforms and clamps the conductive part;

a second station for pulling the conductive part to move inwards to a preset distance.

Preferably, an air bag ring which is coaxially distributed with the threading hole is arranged in the wiring terminal, and the air bag ring is driven to radially contract so as to be fixedly sleeved on the cable.

Preferably, the airbag ring comprises at least two valve closing parts arranged in a circumferential array around the airbag ring, each valve closing part comprises a rotating part and an arc-shaped valve closing plate, and the rotating parts are driven to rotate so as to deflect and close the arc-shaped valve closing plates on the rotating parts to enable the airbag ring to be sleeved and fixed.

Preferably, still include the arc guide board that is driven the horizontal direction and remove, rotation portion one end is rotated through universal ball and is connected, the other end then slides and set up in the waist that the arc guide board was last seted up is downthehole, wherein:

regarding to the vertical direction, the arc-shaped petal plate is inclined from one end of the universal ball to one end of the arc-shaped guide plate, and the high position of the arc-shaped petal plate is close to one side of the universal ball;

regarding the horizontal direction, the arc petal board by universal ball one end is to arc guide board one end slope, and the high-order is close to arc guide board one side.

Preferably, the device further comprises a connecting rod assembly which is driven by the angle plate component to drive the arc-shaped guide plate to move, so that the arc-shaped valve plates on the arc-shaped guide plate deflect and fold to enable the airbag ring to be fixedly sleeved on the cable.

In the above technical solution, the electromagnetic compatibility filter provided by the present invention has the following beneficial effects: the original hard massive pressing sheet is changed into the elastic arc-shaped plate, and the two elastic arc-shaped plates are utilized to be deformed by the surface of the driven arc top negative pressure conductive part, so that the arc top and the distribution close to the arc top are completely attached to the surface of the conductive part to be extruded and fixed, and the conductive part and the elastic arc-shaped plates are electrically connected with the conductive part and the inside of the body. Compare traditional screw and order about preforming negative pressure cable copper line part, fixed effect is better, avoids because the screw is not hard up for preforming negative pressure cable copper line effect reduces, causes contact failure, influences the transmission of the signal of telecommunication.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is a schematic overall structure diagram provided in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of a connection terminal according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a position relationship between a guide roller wheel and a third rod according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a detailed structure of an elastic member according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a valve closing member according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an insertion end structure of a cable according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an embodiment of the gripping mechanism according to the present invention in a state of clamping a cable.

Description of the reference numerals:

1. a body; 11. leading out a wiring terminal; 12. leading in a wiring terminal; 2. a capture mechanism; 3. a gusset member; 31. a guide roller wheel; 32. a third rod body; 33. a second rod body; 34. a tension spring; 35. a spring hooking plate; 4. an elastic arc plate; 41. an elastic member; 411. a boss portion; 412. an extension portion; 413. an abutting portion; 414. an arc-shaped portion; 5. a conductive portion; 6. a balloon ring; 7. a valve closing piece; 71. a rotating part; 72. an arc-shaped flap plate; 721. a card slot; 722. clamping the strip; 8. an arc-shaped guide plate; 81. a first rod body; 82. a second rod body; 83. a guide rail; 9. a universal shaft seat.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-7, an electromagnetic compatibility filter comprises a body 1, the body 1 at least comprises an incoming connection terminal 12 and an outgoing connection terminal 11, the two connection terminals comprise a threading hole, a catching mechanism 2 for locking a cable led in through the threading hole is arranged in each connection terminal, the catching mechanism 2 comprises at least two elastic arc plates 4 arranged in a circumferential array around the threading hole, and the two elastic arc plates 4 are driven to deform a conductive part 5 arranged at the end part of the cable abutted by an arc top so as to be clamped;

the conducting wire in the body 1 is connected with the elastic arc-shaped plate 4.

Specifically, the connection terminals in the above embodiments are short for the incoming connection terminal 12 and the outgoing connection terminal 11, and the connection terminals include the incoming connection terminal 12 and the outgoing connection terminal 11. Further, as can be seen from fig. 1, threading holes are formed in the leading-in wiring terminal 12 and the leading-out wiring terminal 11, and the function of the threading holes is to insert the conductive part 5 on the cable into the threading holes, so that the catching mechanism 2 can be triggered to lock the cable.

Further, the outer arc tops of the elastic arc-shaped plates 4 in the above embodiment face the inside of the threading hole and extend to a predetermined length inside the threading hole, and the extending portions thereof are enough to be pushed and deformed by the inserted conductive portion 5, so as to clamp the conductive portion 5, and the specific extending length is not described in detail.

The elastic arc-shaped plate 4 in the above embodiments may be made of any metal having elasticity and specific conductive properties, such as an elastic copper plate having a thickness of not less than 3mm, an elastic steel plate plated with zinc, an elastic steel plate plated with silver, or an elastic copper alloy plate, and the like, and it is sufficient to conform to the common technical knowledge of those skilled in the art, and the details are not given.

The conductive part 5 in the above embodiment is a copper sheet bent to be clamped on a bare copper wire of a cable.

In the above embodiment, the inserted conductive part 5 pushes the elastic arc-shaped plate 4 to deform so as to clamp the conductive part 5, and the structure for maintaining the state may be that a sensor is used to detect that the conductive part 5 is inserted, and the sensor is actively driven by an air cylinder or a motor, so that the elastic arc-shaped plate 4 is pressed and fixed toward the conductive part 5; or the elastic arc-shaped plate is arranged on the sliding rod, the elastic arc-shaped plate 4 is kept in an initial state by pushing the sliding rod through the resistance spring, when the conductive part 5 is inserted, the elastic arc-shaped plate 4 is pushed to move radially, and the elastic arc-shaped plate 4 is driven to firmly lower the conductive part 5 to be locked under the action of the resistance spring; further, either active or passive driving means known to those skilled in the art may be used.

Among the above-mentioned technical scheme, the massive preforming of stereoplasm will be changed for elasticity arc 4 originally, thereby utilize two elasticity arc 4 to be driven arc top negative pressure conductive part 5 surfaces and take place deformation for the arc top and be close to the whole extrusion in order fixed in conductive part 5 surfaces of laminating of distribution on arc top, thereby conductive part 5 and elasticity arc 4 make conductive part 5 and body 1 inside realize electric connection. Compare traditional screw and order about preforming negative pressure cable copper line part, fixed effect is better, avoids because the screw is not hard up for preforming negative pressure cable copper line effect reduces, causes contact failure, influences the transmission of the signal of telecommunication.

As a further example of the present invention, the outer arc surface of the elastic arc plate 4 is provided with a plurality of elastic pieces 41, and the elastic pieces 41 are deformed in abutment with the conductive portion 5.

Specifically, insert the extrusion and order about 4 deformations of elasticity arc when conductive portion 5 by the through wires hole, because receive the extrusion and the back of deformation when elasticity arc 4, the elastic component 41 that is located 4 surfaces of elasticity arc also can take place deformation to it is further, increase the effect of crowded firm capture.

Further, the elastic member 41 in the embodiment may be made of any metal having elasticity and specific conductive properties, such as an elastic copper plate, an elastic steel plate plated with zinc, an elastic steel plate plated with silver, or an elastic copper alloy plate.

Further, the elastic member 41 in the above embodiment may have a hollow polygonal structure, such as a triangle, a quadrangle, or a pentagon; or a hollow convex structure, such as a cone, a circular truncated cone and an isosceles trapezoid; or a raised circular arc structure.

As a further embodiment of the present invention, the elastic member 41 includes a convex portion 411 and an extending portion 412 arranged at an angle of 110 ° to 120 ° with respect to the convex portion 411, and a joint of the extending portion 412 and the convex portion 411 forms an abutting portion 413, wherein:

when the abutting portion 413 abuts on the surface of the conductive portion 5, the extending portion 412 is deformed and moved toward the elastic arc plate 4.

Further, the end of the extension part 412 is provided with an arc part 414, the arc part 414 is wrapped with a flexible rubber soft block, and the arc part 414 is used for enabling the flexible rubber soft block to contact the surface of the conductive part 5 for deformation.

Specifically, the elastic member 41 in the above embodiment is specifically an L-shaped structure, and the included angle of the L-shaped structure is 110 ° to 120 °. In specific implementation, insert the extrusion and order about elasticity arc 4 deformation when conductive part 5 by the through wires hole, after elasticity arc 4 because receive the extrusion and deformation, butt portion 413 is solid construction, consequently can block between elasticity arc 4 and conductive part 5, with the extrusion effect that increases the extrusion, and the flexible rubber soft block of parcel on arc 414 then can take place deformation, receive the extrusion laminating between elasticity arc 4 and conductive part 5, utilize flexible rubber soft block increase frictional force, guarantee the anticreep power after the capture.

Further, the elastic members 41 in the embodiment may be arranged in a rectangular array, and the electric conduction of the elastic arc-shaped plate 4 and the electric conduction part 5 is connected by a plurality of abutting parts 413; or the length of the elastic arc-shaped plate is consistent with that of the elastic arc-shaped plate 4, and the elastic arc-shaped plate are arranged on the surface of the elastic arc-shaped plate 4 in a linear array.

Further, the extending portions 412 in the above embodiments may be distributed along the insertion direction or the detachment direction of the conductive portion 5.

As a preferred embodiment of the present invention, the extending portions 412 are distributed along the introducing direction of the conductive portion 5.

Specifically, as can be seen from fig. 2, 4 and 7, the extending portions 412 in the above scheme are distributed along the direction of introduction of the conductive portion 5, so that the extending portions 412 form an effect like barbs, when the conductive portion 5 is forced to the outside, the deformed flexible rubber soft block is driven, and the extending portions 412 are deformed toward the direction of movement of the conductive portion 5, so as to generate blocking efficiency, so that the conductive portion 5 cannot be separated from the conductive portion.

In addition, if the flexible rubber soft block is distributed along the separation direction, when the external force is too large, the flexible rubber soft block can be separated from the extension part 412, and the separation prevention effect is obviously inferior to the arrangement effect of the scheme.

As a further embodiment of the present invention, the catching mechanism 2 includes a corner plate 3, an elastic arc plate 4 is disposed on a port of the corner plate 3, and the conductive portion 5 pushes the two elastic arc plates 4 to drive the two corner plate 3 to rotate synchronously, so that the two elastic arc plates 4 complete the following two stations:

a first station for deforming and clamping the conductive part 5;

and a second station, pulling to move the conductive part 5 inwards to a predetermined distance.

In particular, as can be seen in reference to figure 7, the gusset member 3 in the embodiment is pivotally disposed within the terminal and is arranged in a circumferential array around the wire passing aperture.

In the above scheme, the angle plate member 3 includes the third rod body 32 and the fourth rod body 33, and the included angle between the third rod body 32 and the fourth rod body 33 is 90 °, and the junction of the third rod body 32 and the fourth rod body 33 is a pivot point, and it is installed on the shaft lever of fixed mounting in the wiring terminal through the pivot point, and still rotate on the shaft lever and install in colluding the spring plate 35, is located to be provided with the groove on the third rod body 32, and colludes and is provided with the extension spring 34 in spring plate 35 and the groove. Furthermore, limiting blocks are symmetrically arranged in the wiring terminal to limit the moving range of the hook spring plate 35, so that the wiring terminal is switched between two states shown in fig. 2 and 7.

Further, with reference to fig. 2, in an initial state, the third rod 32 is perpendicular to the threading hole, a side surface of the elastic arc plate 4 close to the arc top is opposite to the threading hole to form a pushing surface, and the plurality of elastic members 41 are arranged along the arc top and the side close to the fourth rod 33 (shown in fig. 2). When the conductive part 5 is inserted through the threading hole and can push against the pushing surface of the elastic arc-shaped plate 4, the corner plate 3 is driven to rotate, the conductive part 5 (i.e. the first station) is clamped and fixed by the elastic arc-shaped plate 4 in a rotating manner, the tension spring 34 is stretched to the limit in the deflection process along with the gradual approach of the fourth rod body 33 to the threading hole, the corner plate 3 is actively driven to rotate rapidly under the action of the tension force, and the end parts of the fourth rod body 33 and the third rod body 32 are kept in a horizontal state, namely the state shown in fig. 7.

And when the gusset piece 3 initiatively rotates to fig. 7 under the tension spring 34 tension effect, because a plurality of elastic arc-shaped plates 4 and the conductive part 5 are clamped, along with the initiative rotation of the gusset piece 3, the conductive part 5 can be initiatively pulled to move towards the inside to a certain distance (namely, a second station), and after the elastic arc-shaped plate 4 deforms due to being extruded, the abutting part 413 is of a solid structure, so that the elastic arc-shaped plate can be clamped between the elastic arc-shaped plate 4 and the conductive part 5 to increase the extrusion effect of the extrusion, and the flexible rubber soft block wrapped on the arc-shaped part 414 can deform and is extruded and laminated between the elastic arc-shaped plate 4 and the conductive part 5, the friction force is increased by utilizing the flexible rubber soft block, and the anti-falling force after the catching is ensured. And because the extension part 412 is distributed along the leading-in direction of the conductive part 5, the extension part 412 forms the effect like a barb, when the conductive part 5 is stressed to the outside, the deformed flexible rubber soft block is driven, and the extension part 412 is deformed towards the direction of the movement of the conductive part 5, so that the blocking efficiency is generated, and the conductive part 5 cannot be separated from the conductive part.

As a further embodiment provided by the invention, an air bag ring 6 which is coaxially distributed with the threading hole is arranged in the wiring terminal, and the air bag ring 6 is driven to contract radially to be sleeved and fixed on the cable.

Specifically, the air bag ring 6 in the above embodiment is filled with a predetermined volume of air, and may be made of elastic rubber or elastic silica gel.

Further, the gasbag ring 6 in the above-mentioned embodiment is the loop configuration, and the inner ring radius equals the radius size of threading hole, after electrically conductive part 5 inserted and by the locking of capture mechanism 2, then gasbag ring 6 just can be deformed in order to overlap on the cable of electrically conductive part 5, the increase damping force of cooperation barb effect extension 412 optimizes the efficiency of anticreep, because it is located the threading hole entering end and distributes, consequently, when the cable atress, gasbag ring 6 can absorb a subsection earlier, another part is acting on capture mechanism 2 to optimize damping force.

Further, in the above embodiment, the air bag ring 6 can be driven by the micro air pump to increase or decrease pressure to deform; or through the extrusion plates capable of moving in the radial direction, the number of the extrusion plates is not less than three, and the motor drives the gear assembly to operate, so that the three extrusion plates synchronously approach to the axis to extrude the airbag ring 6 to deform; or any other driving means known to those skilled in the art.

As a further embodiment of the present invention, the present invention further comprises at least two valve closing members 7 arranged in a circumferential array about the airbag ring 6, wherein the valve closing members 7 comprise rotating portions 71 and arc-shaped valve plates 72, and the rotating portions 71 are driven to rotate to deflect and close the arc-shaped valve plates 72 thereon to fix the airbag ring 6.

Specifically, the arc-shaped flap plate 72 in the above embodiment has a clamping slot 721 on one side close to the rotating portion 71, and a clamping strip 722 (shown in fig. 5) is disposed on the side surface of the other end.

Further, for better explanation of the above embodiment, two petals 7 are defined as a and b, respectively, and in detail:

when a and b are driven to move simultaneously, the arc-shaped flapper 72 on a abuts against the surface of the rotating part 71 on b and slides into the arc-shaped flapper 72 on b under the guidance of the arc-shaped flapper, and the clamping strip 722 is clamped into the clamping groove 721 as the arc-shaped flapper 72 on a continues to slide; the arc-shaped flapper 72 on the synchronous b will abut against the surface of the rotating part 71 on the synchronous a and slide into the arc-shaped flapper 72 on the synchronous a under the guidance of the arc-shaped flapper, and as the arc-shaped flapper 72 on the synchronous b continues to slide, the clamping strip 722 is clamped into the clamping groove 721. In conclusion, the circular structure is formed by folding, the air bag ring 6 is tightly hooped and deformed by the arc-shaped flap plate 72 which is in the circular structure, and the technical purpose of fixing the cable is realized.

As a further preferred embodiment of the present invention, the present invention further includes an arc-shaped guide plate 8 driven to move horizontally, one end of the rotating part 71 is rotatably connected through a universal ball, and the other end is slidably disposed in a waist hole formed in the arc-shaped guide plate 8, wherein:

in the vertical direction, the arc-shaped flap plate 72 is inclined from one end of the universal ball to one end of the arc-shaped guide plate 8, and is positioned at a position close to one side of the universal ball;

regarding the horizontal direction, the arc-shaped flap plate 72 is inclined from one end of the universal ball to one end of the arc-shaped guide plate 8, and is high near one side of the arc-shaped guide plate 8.

Specifically, the inside of the connecting terminal in the embodiment is fixedly provided with a universal shaft seat 9, and the universal ball is movably arranged in the universal shaft seat 9. And a guide rail 83 for moving the arc guide plate 8 is further installed inside the terminal, and the arc guide plate 8 moves in the horizontal direction (shown in fig. 2) under the guide of the guide rail 83.

Further, an xz-axis coordinate is established by using the position of the clapper 7 shown in fig. 5, and the axial direction of the rotating part 71 is an x-coordinate, specifically:

taking the horizontal plane where the x coordinate is located as a standard, the arc-shaped petal plates 72 are inclined from one end of the universal ball to one end of the arc-shaped guide plate 8, and the high position of the arc-shaped petal plates is close to one side of the universal ball;

taking the horizontal plane of the z coordinate as a standard, the arc-shaped petal plate 72 is inclined from one end of the universal ball to one end of the arc-shaped guide plate 8, and is high near one side of the arc-shaped guide plate 8.

In the initial state, the distance between the end of the plurality of turning portions 71 where the universal balls are located is smaller than the distance between the end of the plurality of turning portions and the end of the arcuate guide plate 8 where the universal balls slide.

When the arc-shaped guide plate 8 is driven to move towards one side of the universal ball along the guide slide rail 83, along with the change of the curved surface of the arc-shaped guide plate 8, one end of the left side of the rotating part 71 (the position shown in fig. 5 is the standard), the rotating part contracts in the radial direction, namely, the rotating part is close to the axis, meanwhile, the whole rotating part 71 is converted from a horizontal state (namely, the left end and the right end are coaxial, and the right end is the end where the universal ball is located) into an inclined state, the horizontal plane where the z coordinate is located is the standard, the left end on the same rotating part 71 is lower than the right end, in the moving process, the end part of the arc-shaped flap closing plate 72 can contact with the surface of the air bag ring 6, and the torque efficiency is generated, so that the air bag ring 6 is deformed by torque.

Further, when a and b are driven to move simultaneously, the arc-shaped flapper 72 on a will abut against the surface of the rotating part 71 on b and slide into the arc-shaped flapper 72 on b under the guidance of the arc-shaped flapper 72 on a, and as the arc-shaped flapper 72 on a continues to slide, the clamping strip 722 is clamped into the clamping groove 721; the arc-shaped flapper 72 on the synchronous b will abut against the surface of the rotating part 71 on the synchronous a and slide into the arc-shaped flapper 72 on the synchronous a under the guidance of the arc-shaped flapper, and as the arc-shaped flapper 72 on the synchronous b continues to slide, the clamping strip 722 is clamped into the clamping groove 721. In conclusion, the circular structure is formed by folding, the air bag ring 6 is tightly hooped and deformed by the arc-shaped flap plate 72 which is in the circular structure, and the technical purpose of fixing the cable is realized.

Further, the above embodiment further comprises a connecting rod assembly driven by the angle plate member 3 to drive the arc-shaped guide plate 8 to move, so that the arc-shaped flap plates 72 thereon deflect and fold to deform the airbag ring 6 to be fixed on the cable.

Specifically, the connecting rod assembly comprises a first rod 81 and a second rod 82, one end of the first rod 81 is installed in the connecting terminal through a rotating shaft, the other end is provided with a slide rail block movably arranged, and the slide rail block is arranged in a slide rail groove formed in one side of the arc-shaped guide plate 8 in a sliding manner; one end of the second rod 82 is installed in the connection terminal through a rotation shaft, and the other end is slidably disposed in a waist hole formed in the first rod 81.

In the embodiment, the first rod 81 is mounted with a V-shaped elastic member, and the first rod 81 and the second rod 82 are maintained in the state shown in fig. 2 by the V-shaped elastic member.

In a specific embodiment, when the conductive part 5 is inserted through the threading hole and can push against the pushing surface of the elastic arc-shaped plate 4, the corner plate 3 is driven to rotate, the conductive part 5 (i.e. the first station) is clamped by the elastic arc-shaped plate 4 along with the rotation, the tension spring 34 is stretched to the limit in the deflection process along with the gradual approach of the fourth rod body 33 towards the threading hole, and the corner plate 3 is actively driven to rotate rapidly under the effect of a pull force until the end parts of the fourth rod body 33 and the third rod body 32 keep a horizontal state, which is the state shown in fig. 7.

And when angle plate member 3 received extension spring 34 impetus down initiatively to rotate to fig. 7, because a plurality of elasticity arc 4 and fixed conductive part 5, along with the initiative rotation of angle plate member 3, just can initiatively drag conductive part 5 and move to certain distance (second station) towards the inside, and the back that elastic arc 4 at this moment deformed because of receiving the extrusion, butt portion 413 is solid structure, consequently can block between elasticity arc 4 and conductive part 5, in order to increase extruded extrusion effect, and the flexible rubber soft block of parcel on arc 414 then can take place deformation, receive the extrusion laminating between elasticity arc 4 and conductive part 5, utilize flexible rubber soft block to increase frictional force, guarantee the anticreep power after taking. And because the extension part 412 is distributed along the leading-in direction of the conductive part 5, the extension part 412 forms the effect like a barb, when the conductive part 5 is stressed to the outside, the deformed flexible rubber soft block is driven, and the extension part 412 is deformed towards the direction of the movement of the conductive part 5, so that the blocking efficiency is generated, and the conductive part 5 cannot be separated from the conductive part.

When the gusset member 3 is about to turn over to the end portions of the fourth rod 33 and the third rod 32 to be kept horizontal, since the guide roller 31 is rotatably installed on the side surface of the third rod 32, the guide roller 31 at this time is in rolling connection with the second rod 82, that is, the first rod 81 is pressed down along the negative pressure second rod 82, and when the first rod 81 is pressed, the arc guide plate 8 is pushed to move towards one side of the universal ball along the guide rail 83, along with the change of the curved surface of the arc guide plate 8, one end of the left side of the rotating portion 71 (the position shown in fig. 5 is the right), the radial direction is contracted in size, that is, the axis is closed, and meanwhile, the whole rotating portion 71 is converted from a horizontal state (that is, the left end and the right end are coaxial, and the end of the universal ball is the right end), the left end and the right end of the same rotating portion 71 are lower than the right end, and in the moving process, the end portions of the arc-shaped flap plates 72 contact the surface of the airbag ring 6, and generate torque efficiency, so that the airbag ring 6 is deformed by torque.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.

Claims

1. An electromagnetic compatibility filter comprises a body (1), wherein the body (1) at least comprises an incoming connecting terminal (12) and an outgoing connecting terminal (11), and the two connecting terminals comprise a threading hole, and is characterized in that a catching mechanism (2) for locking a cable led in from the threading hole is arranged in the connecting terminals, the catching mechanism (2) comprises at least two elastic arc-shaped plates (4) which are arranged in a circumferential array mode relative to the threading hole, and the two elastic arc-shaped plates (4) are driven to enable an arc top to abut against a conductive part (5) arranged at the end part of the cable to deform so as to be clamped;

the conducting wire in the body (1) is connected with the elastic arc-shaped plate (4).

2. An electromagnetic compatibility filter according to claim 1, characterized in that the extrados of said elastic arc plate (4) is provided with a plurality of elastic elements (41), said elastic elements (41) being deformed in abutment with the conductive portion (5).

3. An emc filter according to claim 2, wherein the elastic member (41) comprises a convex portion (411) and an extension portion (412) arranged at an angle of 110 ° -120 ° to the convex portion (411), the junction of the extension portion (412) and the convex portion (411) forming an abutment portion (413), wherein:

when the abutting part (413) abuts against the surface of the conductive part (5), the extending part (412) deforms and draws close to the elastic arc-shaped plate (4).

4. An electromagnetic compatibility filter according to claim 3, characterized in that the end of the extension portion (412) is provided with an arc portion (414), the arc portion (414) is wrapped with a flexible rubber soft block, and the arc portion (414) is used for deforming the surface of the flexible rubber soft block contacting the conductive portion (5).

5. An emc filter according to claim 4, characterized in that said extensions (412) are distributed along the direction of introduction of said conductive part (5).

6. An emc filter according to claim 1, wherein said capturing mechanism (2) comprises a corner member (3), and an elastic arc-shaped plate (4) is provided at the end of said corner member (3), and said conductive portion (5) pushes against two said elastic arc-shaped plates (4) to drive the two corner members (3) to rotate synchronously, so that the two elastic arc-shaped plates (4) perform the following two work positions:

a first station for deforming and clamping the conductive part (5);

a second station, pulling to move the conductive part (5) inwards to a predetermined distance.

7. An electromagnetic compatibility filter according to claim 1, characterized in that an air bag ring (6) is arranged in the wiring terminal and is coaxial with the threading hole, and the air bag ring (6) is driven to contract radially to be sleeved on the cable.

8. An electromagnetic compatibility filter according to claim 7, further comprising at least two petal members (7) arranged in a circumferential array about the airbag ring (6), wherein the petal members (7) comprise rotating portions (71) and arc-shaped petal plates (72), and a plurality of the rotating portions (71) are driven to rotate so as to deflect the arc-shaped petal plates (72) thereon to deform and fix the airbag ring (6).

9. The filter according to claim 8, further comprising an arc-shaped guide plate (8) driven to move horizontally, wherein one end of the rotating part (71) is rotatably connected through a universal ball, and the other end is slidably disposed in a waist hole formed in the arc-shaped guide plate (8), and wherein:

in the vertical direction, the arc-shaped petal plate (72) is inclined from one end of the universal ball to one end of the arc-shaped guide plate (8), and is positioned at the side close to the universal ball;

regarding the horizontal direction, arc petal board (72) by universal ball one end is to arc guide board (8) one end slope, and the high position is close to arc guide board (8) one side.

10. An emc filter according to claim 9, further comprising a linkage assembly driven by the angle plate member (3) to move the arcuate guide plate (8) to deflect the arcuate flaps (72) thereof toward each other to deform the airbag ring (6) to fit over the cable.