CN114360940B

CN114360940B - Non-magnetic drive self-locking self-cleaning relay and on-off locking method

Info

Publication number: CN114360940B
Application number: CN202210250294.8A
Authority: CN
Inventors: 吴坤
Original assignee: Kunshan Zhengyao Electronic Technology Co ltd
Current assignee: Kunshan Zhengyao Electronic Technology Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-12-23
Anticipated expiration: 2042-03-15
Also published as: CN114360940A

Abstract

The invention discloses a non-magnetic drive self-locking self-cleaning relay, which comprises a shell, a drive device, a first sliding block, a second sliding block, a movable contact, two swinging elastic locking arms, two stationary contacts and two locking plates, wherein the shell is provided with a first sliding block and a second sliding block; the first sliding block is connected with the output end of the driving device, the lower end of the first sliding block is connected with the second sliding block, the moving contact is arranged on the second sliding block, and the two static contacts are arranged at the bottom of the shell in a penetrating manner; the two ends of the locking plate are respectively provided with an arc-shaped locking part, the swinging elastic locking arm is rotatably connected in the shell, one end of the swinging elastic locking arm is movably hinged on the second sliding block, and the other end of the swinging elastic locking arm correspondingly abuts against the locking plate; according to the invention, the two swing elastic locking arms are matched with the two locking plates, so that the movable contact can be locked when the movable contact is electrically contacted with the fixed contact, and the movable contact can be locked when the movable contact is separated from the fixed contact, therefore, continuous electrification is not needed, the electric energy is saved, and the power consumption cost is reduced.

Description

Non-magnetic drive self-locking self-cleaning relay and on-off locking method

Technical Field

The invention relates to the technical field of relays, in particular to a non-magnetic driving self-locking self-cleaning relay.

Background

The working principle of the existing relay is that the moving contact of the relay is controlled to move by electrifying the electromagnet, so that the on-off operation of the relay is realized; it requires continuous energization of the electromagnet to keep the high-voltage circuit in an on state or an off state, which leads to an increase in consumed electric power, resulting in an increase in electricity consumption cost.

Disclosure of Invention

The invention aims to overcome the defects and provide a non-magnetic driving self-locking self-cleaning relay.

In order to achieve the purpose, the invention adopts the following specific scheme:

a non-magnetic driving self-locking self-cleaning relay comprises a shell and a driving device, wherein the shell is provided with an accommodating cavity, and the driving device is arranged at the top of the shell;

the device also comprises a first sliding block, a second sliding block, a movable contact, two swinging elastic locking arms, two stationary contacts and two locking plates which are arranged in the accommodating cavity; the first sliding block is connected in the accommodating cavity in a sliding manner, the second sliding block is connected in the accommodating cavity in a sliding manner and is positioned below the first sliding block, the upper end of the first sliding block is connected with the output end of the driving device, the lower end of the first sliding block is connected with the second sliding block, the movable contact is fixed on the second sliding block, the two stationary contacts are arranged at intervals, and the two stationary contacts are arranged at the bottom of the shell in a penetrating manner and correspond to the movable contact in position; two the lock plate symmetry sets up on the inner wall of casing, every the both ends of lock plate all are provided with circular-arc locking portion, two swing elasticity locking arm symmetry sets up, two swing elasticity locking arm rotates respectively to be connected on the inside wall of casing, two the equal swing joint of one end of swing elasticity locking arm is on the second slider, two the other end one-to-one of swing elasticity locking arm supports and leans on two lock plates.

The swing elastic locking arm comprises a swing arm, a roller support, a contact roller and a first spring, wherein the swing arm is rotatably connected to the inner side wall of the shell, one end of the swing arm is movably hinged to the second sliding block, the first spring is arranged in the swing arm, one end of the roller support movably extends into the other end of the swing arm and then is abutted to the first spring, and the contact roller is abutted to the locking plate.

Furthermore, the driving device comprises a stator barrel, a mandrel and four rotor units which are sequentially arranged at equal intervals from top to bottom; the upper end and the lower end of the stator barrel are both fixed with end covers, the inner wall of the stator barrel is provided with a spiral first fin, and the upper surface of the first fin is coated with a first electrode layer capable of containing electric charges; the inner wall of the stator barrel is fixedly provided with four mounting brackets which are arranged at equal intervals, the four mounting brackets are arranged in a cross shape, and one ends of the four mounting brackets are respectively and movably sleeved on the mandrel correspondingly; the other end of each mounting bracket is also fixedly provided with a collector block which is electrically conducted with the first electrode layer; the mandrel is rotatably connected to the two end covers, and the lower end of the mandrel penetrates through the end covers; the four rotor units are movably sleeved on the mandrel and are rotationally connected to the four mounting brackets in a one-to-one correspondence manner; each rotor unit is provided with a second spiral fin parallel to the first fin, and the lower surface of the second fin is coated with a second electrode layer capable of containing electric charges; a unidirectional transmission mechanism for driving the rotor unit to rotate the mandrel in a unidirectional manner is arranged between each rotor unit and the mandrel;

the lower ends of the three rotor units positioned above are respectively provided with an electric brush which is electrically conducted with the corresponding second electrode layer, and each electric brush is electrically contacted with the corresponding collector block when the corresponding rotor unit finishes rotating, so that electric charges on the second electrode layer on the corresponding rotor unit can flow to the second electrode layer of the next rotor unit;

a first pin and a second pin penetrate through the end cover positioned above the end cover, the first pin and the second pin are arranged at intervals, the first pin is electrically conducted with the first electrode layer, and the second pin is electrically conducted with the current collecting block positioned at the top;

the lower extreme of dabber is connected with one and dials the axle, dial the epaxial epirelief and be equipped with first bayonet lock, the upper end of first slider is provided with ring cam portion, the inner wall of ring cam portion is seted up and is used for matching dabber unidirectional rotation's cam groove, first bayonet lock activity is inlayed and is located in the cam groove, the lower extreme and the second slider activity of first slider are articulated.

Furthermore, each rotor unit comprises a rotor body with an annular structure, the second fins are arranged on the outer wall of the rotor body, a first annular groove is formed in the upper end of the rotor body, a circular ring is formed in the other end of the mounting support, the rotor body is rotatably connected to the circular ring through the first annular groove, and the collector blocks are correspondingly arranged at the upper end of the outer wall of the circular ring.

The one-way transmission mechanism further comprises a ratchet wheel and a plurality of elastic sheets which are uniformly distributed along the circumferential direction, a second annular groove is formed in the lower end of the rotor body, the ratchet wheel is fixedly sleeved on the mandrel and located in the second annular groove, one end of each elastic sheet is fixedly connected to the groove wall of the second annular groove, and the other end of each elastic sheet is meshed with the ratchet wheel.

The surface of the second electrode layer is covered with an insulating layer.

The contact polishing device is arranged in the accommodating cavity and used for periodically polishing and cleaning the movable contact and the two fixed contacts.

The contact polishing device comprises a polishing body, a second spring, a third slider, a polishing sheet, a stepping rack, a push block, two fourth sliders and two locking plates, wherein the polishing body is L-shaped, the polishing body is fixed on the inner bottom wall of a shell, a ratchet structure is arranged at the vertical end of the polishing body along the length direction of the polishing body, a polishing driving groove is formed in the horizontal end of the polishing body, one end of the second spring is connected to one end of the polishing body through a end plate, the two fourth sliders are arranged at intervals and are respectively connected to the vertical end of the polishing body in a sliding mode, one of the fourth sliders is fixedly connected with the other end of the second spring, the third slider is sleeved on the two fourth sliders in a sliding mode, the polishing sheet is arranged on the third slider in a lifting mode, a guide inclined surface is arranged on the peripheral wall of the polishing sheet, the stepping rack is fixed on the third slider, an avoidance groove is formed in the stepping rack between adjacent teeth of the stepping rack, the push block is fixed at the lower end of the second slider and is positioned right above the stepping rack, one end of the two locking plates is fixed on the third slider, one end of the two locking plates can be meshed with the elastic clamping pin of the polishing body, and the second slider, and the elastic clamping pin is movably arranged in the second slider;

the polishing driving groove comprises an A section, a B section, a C section, a D section, an E section and an F section which are sequentially connected end to end, wherein the heights of the bottom surfaces of the A section and the B section are higher than the heights of the bottom surfaces of the C section, the D section, the E section and the F section, the F section is provided with an inclined surface connected with the A section, the B section is obliquely arranged towards the direction far away from the vertical end of the polishing body, the C section is obliquely arranged towards the direction close to the A section, the D section and the A section are arranged in parallel, the E section is obliquely arranged towards the direction of the vertical end of the polishing body, and the F section and the A section are positioned on the same straight line.

The beneficial effects of the invention are as follows: according to the invention, the two swing elastic locking arms are matched with the two locking plates, so that the movable contact can be locked when the movable contact is electrically contacted with the fixed contact, and the movable contact can be locked when the movable contact is separated from the fixed contact, continuous power-on is not needed, the electric energy is saved, and the power consumption cost is reduced.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention with the movable contact in a disengaged state;

fig. 3 is a sectional view of the present invention with the movable contact in a contact-locked state;

fig. 4 is a partial structure schematic diagram of the invention when the movable contact is in a contact-breaking state;

FIG. 5 is a partial schematic structure diagram of the movable contact in the contact locking state;

FIG. 6 is a cross-sectional schematic view of the oscillating resilient latch arm of the present invention;

FIG. 7 is a schematic cross-sectional view of the drive of the present invention;

FIG. 8 is a perspective view showing a partial structure of a driving apparatus of the present invention;

FIG. 9 is a perspective view of another perspective of the partial structure of the driving device of the present invention;

FIG. 10 is a schematic view of the brush, unidirectional actuator of the present invention mounted on a rotor unit;

FIG. 11 is a perspective view of the one-way transmission of the present invention;

FIG. 12 is a schematic view of the construction of the stator cartridge of the present invention;

FIG. 13 is a schematic view of the mounting bracket of the present invention installed within a stator can;

FIG. 14 is a schematic view of the first slider configuration of the present invention;

figure 15 is a perspective view of the contact grinding apparatus of the present invention;

fig. 16 is a perspective view of a partial structure of the contact grinding apparatus of the present invention;

figure 17 is a perspective view of the sanding body of the present invention;

FIG. 18 is a perspective view of a second slide of the present invention;

description of the reference numerals: 1. a housing; 2. a drive device; 21. a stator cartridge; 211. an end cap; 212. a first fin; 213. a first electrode layer; 22. a mandrel; 23. a rotor unit; 231. a rotor body; 232. a second fin; 233. a second electrode layer; 234. an insulating layer; 24. mounting a bracket; 25. a collector block; 26. a one-way transmission mechanism; 261. a ratchet wheel; 262. a spring plate; 27. an electric brush; 28. a first pin; 29. a second pin; 3. a first slider; 31. a circular ring cam portion; 32. a cam slot; 4. a second slider; 5. a movable contact; 6. a swinging elastic locking arm; 61. swinging arms; 62. a roller bracket; 63. a contact roller; 64. a first spring; 7. a stationary contact; 8. a lock plate; 81. a lock section; 9. a contact polishing device; 91. polishing the body; 911. a ratchet structure; 912. polishing the driving groove; 9121. a section A; 9122. a section B; 9123. c, section; 9124. a stage D; 9125. e, section; 9126. f section; 92. a second spring; 93. a third slider; 931. a second bayonet lock; 94. grinding the sheets; 941. a guide slope; 95. a step rack; 951. avoiding the groove; 96. a push block; 97. a fourth slider; 98. a locking plate; 99. an end plate; 10. a shaft is poked; 101. a first detent.

Detailed Description

The present invention will be described in further detail with reference to the drawings and specific examples, which should not be construed as limiting the scope of the invention.

As shown in fig. 1 to 18, the non-magnetic driving self-locking self-cleaning relay of the present embodiment includes a housing 1 and a driving device 2, wherein the housing 1 has a receiving cavity, and the driving device 2 is disposed at the top of the housing 1;

the device also comprises a first sliding block 3, a second sliding block 4, a movable contact 5, two swinging elastic locking arms 6, two stationary contacts 7 and two locking plates 8 which are arranged in the accommodating cavity; the first sliding block 3 is connected in the accommodating cavity in a sliding manner, the second sliding block 4 is connected in the accommodating cavity in a sliding manner and is positioned below the first sliding block 3, the upper end of the first sliding block 3 is connected with the output end of the driving device 2, the lower end of the first sliding block 3 is connected with the second sliding block 4, the movable contact 5 is fixed on the second sliding block 4, the two stationary contacts 7 are arranged at intervals, and the two stationary contacts 7 are arranged at the bottom of the shell 1 in a penetrating manner and correspond to the movable contact 5 in position; two 8 symmetry settings of lock plate are on the inner wall of casing 1, every the both ends of lock plate 8 all are provided with circular-arc locking portion 81, two swing elasticity locking arm 6 symmetry sets up, two swing elasticity locking arm 6 rotates respectively to be connected on the inside wall of casing 1, two the equal activity of one end of swing elasticity locking arm 6 articulates on second slider 4, two swing elasticity locking arm 6's the other end one-to-one supports and leans on two lock plates 8.

The working mode of the embodiment is as follows: when the device works, the first sliding block 3 is at the highest position, the two swinging elastic locking arms 6 point downwards, the movable contact 5 is not contacted with the two fixed contacts 7, and an external high-voltage circuit is in a disconnected state;

when an external high-voltage circuit needs to be connected, the driving device 2 is connected with electricity and drives the first sliding block 3 to move downwards, the first sliding block 3 drives the second sliding block 4 to move downwards, the second sliding block 4 drives the two swing elastic locking arms 6 to swing upwards, until the two swing elastic locking arms 6 are positioned in the same horizontal direction, the second sliding block 4 continues to move downwards, so that the two swing elastic locking arms 6 continue to swing upwards and cross the horizontal position, namely the two swing elastic locking arms 6 are positioned in a slant inclined upwards state, at the moment, the two swing elastic locking arms 6 are matched with the locking plates 8 to generate downward pressure on the second sliding block 4, the second sliding block 4 is pushed to continue to move downwards, the second sliding block 4 drives the movable contact 5 to move downwards to be in electrical contact with the two fixed contacts 7, so that the external high-voltage circuit is connected, at the moment, the two swing elastic locking arms 6 are abutted to the locking parts 81 at the upper ends of the two locking plates 8 one to one another, so that the two swing elastic locking arms 6 are locked by the locking parts 81 of the locking plates 8, the movable contact 5 are kept in electrical contact with the two movable contacts 7, so that the fixed contacts are in a locking state;

when an external high-voltage circuit needs to be disconnected, the driving device 2 drives the first sliding block 3 to move upwards, the first sliding block 3 drives the second sliding block 4 to move upwards, the second sliding block 4 drives the two swing elastic locking arms 6 to move out of the locking parts 81 of the locking plates 8 respectively, until the two swing elastic locking arms 6 swing downwards to cross the horizontal position, the two swing elastic locking arms 6 are in an inclined downward inclined state, at the moment, the two swing elastic locking arms 6 are matched with the locking plates 8 respectively to generate upward thrust on the second sliding block 4 to push the second sliding block 4 to move upwards, until the two swing elastic locking arms 6 abut against the locking parts 81 on the lower ends of the locking plates 8, at the moment, the locking parts 81 lock the two swing elastic locking arms 6, meanwhile, the second sliding block 4 drives the movable contact 5 to move upwards, so that the movable contact 5 is separated from the two static contacts 7, the disconnection of the external high-voltage circuit is realized, and the movable contact 5 is kept in a separated contact state with the static contacts 7.

This embodiment is through two swing elasticity locking arms 6 and two cooperation of locking plate 8 to can carry out the locking to movable contact 5 when movable contact 5 and stationary contact 7 electrical contact, and carry out the locking to movable contact 5 when movable contact 5 breaks away from the contact with stationary contact 7, thereby need not to last the circular telegram, save the electric energy, reduce the power consumption cost.

Based on the basis of the above embodiment, further, the swing elastic locking arm 6 includes a swing arm 61, a roller bracket 62, a contact roller 63 and a first spring 64, the swing arm 61 is rotatably connected to the inner side wall of the housing 1, one end of the swing arm 61 is movably hinged to the second slider 4, the first spring 64 is disposed in the swing arm 61, one end of the roller bracket 62 movably extends into the other end of the swing arm 61 and then abuts against the first spring 64, and the contact roller 63 abuts against the locking plate 8.

In practical use, the second slider 4 drives the swing arm 61 to swing, the first spring 64 applies elasticity to the roller bracket 62, so that the contact roller 63 always abuts against the locking plate 8, and meanwhile, when the swing arm 61 exceeds the horizontal position, the first spring 64 generates oblique downward or oblique upward thrust to the second slider 4, so that the resultant force of the thrust of the two swing elastic locking arms 6 to the second slider 4 is vertically downward or vertically upward, and the second slider 4 can be pushed to drive the movable contact 5 to move; when the contact roller 63 abuts against the arc-shaped locking portion 81, the locking portion 81 blocks further deflection of the swinging elastic locking arm 6, thereby achieving locking of the movable contact 5.

Based on the above embodiment, further, the driving device 2 includes a stator barrel 21, a mandrel 22, and four rotor units 23 arranged in sequence at equal intervals from top to bottom; the upper end and the lower end of the stator tube 21 are both fixed with end covers 211, the inner wall of the stator tube 21 is provided with a spiral first fin 212, and the upper surface of the first fin 212 is coated with a first electrode layer 213 capable of accommodating electric charges; four mounting brackets 24 which are arranged at equal intervals are fixedly mounted on the inner wall of the stator barrel 21, the four mounting brackets 24 are arranged in a cross shape, and one ends of the four mounting brackets 24 are respectively and movably sleeved on the mandrel 22 correspondingly; a collector block 25 electrically conducted with the first electrode layer 213 is further fixed at the other end of each mounting bracket 24; the mandrel 22 is rotatably connected to the two end covers 211, and the lower end of the mandrel penetrates through the end covers 211; the four rotor units 23 are movably sleeved on the mandrel 22 and are rotationally connected to the four mounting brackets 24 in a one-to-one correspondence manner; each rotor unit 23 is provided with a second fin 232 which is spiral and parallel to the first fin 212, and the lower surface of the second fin 232 is coated with a second electrode layer 233 which can contain electric charges; a one-way transmission mechanism 26 for driving the rotor unit 23 to rotate the mandrel 22 in one way is arranged between each rotor unit 23 and the mandrel 22;

the brushes 27 electrically connected with the corresponding second electrode layers 233 are mounted at the lower ends of the three upper rotor units 23, and each brush 27 is electrically contacted with the corresponding collector block 25 when the corresponding rotor unit 23 finishes rotating, so that the charges on the second electrode layers 233 of the corresponding rotor units 23 can flow to the second electrode layers 233 of the next rotor unit 23;

the end cover 211 located above is provided with a first pin 28 and a second pin 29 in a penetrating manner, the first pin 28 and the second pin 29 are arranged at intervals, the first pin 28 is electrically conducted with the first electrode layer 213, and the second pin 29 is electrically conducted with the uppermost collector block 25;

the lower extreme of dabber 22 is connected with a thumb axle 10, thumb axle 10 epirelief is equipped with first bayonet lock 101, the upper end of first slider 3 is provided with ring cam portion 31, the cam groove 32 that is used for matching the unidirectional rotation of dabber 22 is seted up to the inner wall of ring cam portion 31, first bayonet lock 101 activity is inlayed and is located in the cam groove 32, the lower extreme of first slider 3 and the activity of second slider 4 are articulated.

In practical use, the first pin 28 is connected with the positive electrode of a power supply, the second pin 29 is connected with the negative electrode of the power supply, so that a large amount of negative charges are accumulated on the surface of the first electrode layer 213, at the time, a large amount of positive charges are accumulated on the surface of the second electrode layer 233 of the first rotor unit 23 arranged from top to bottom, at the time, an adsorption force is generated between the second electrode layer 233 of the first rotor unit 23 and the first electrode layer 213 due to the action of an electric field force, due to the fixed position of the first electrode layer 213, the generated adsorption force drives the first rotor unit 23 to rotate relative to the stator barrel 21, the first rotor unit 23 drives the mandrel 22 to synchronously rotate through the one-way transmission mechanism 26, the other rotor units 23 keep still, the mandrel 22 drives the shift shaft 10 to rotate, and the shift shaft 10 drives the first slider 3 to move downwards under the matching of the first bayonet pin 101 and the cam groove 32;

when the first rotor unit 23 drives the brush 27 fixed thereon to rotate to electrically contact with the corresponding collector block 25, positive charges on the second electrode layer 233 on the first rotor unit 23 enter the corresponding collector block 25 through the brush 27, and enter the second electrode layer 233 on the second rotor unit 23 through the corresponding collector block 25, at this time, an adsorption force is generated between the second electrode layer 233 and the first electrode layer 213 of the second rotor unit 23 due to an electric field force, so that the second rotor unit 23 rotates relative to the stator barrel 21, and the mandrel 22 is driven to rotate through the corresponding one-way transmission mechanism 26, the mandrel 22 drives the dial shaft 10 to rotate, the dial shaft 10 drives the first slider 3 to move downward under the cooperation of the first bayonet lock 101 and the cam groove 32, and the first slider 3 drives the second slider 4 and the movable contact 5 to move downward; the third rotor unit 23 and the fourth rotor unit 23 are sequentially enabled to respectively drive the mandrel 22 to rotate, the mandrel 22 drives the shifting shaft 10 to rotate, so that the first sliding block 3 is downwards extended to the right position under the matching of the first clamping pin 101 and the cam groove 32, at the moment, the two swinging elastic locking arms 6 cross the horizontal position and are in an inclined state, at the moment, the two swinging elastic locking arms 6 drive the second sliding block 4 to drive the movable contact 5 to downwards extend to be electrically contacted with the two stationary contacts 7 and are respectively matched with the locking parts 81 above the locking plate 8 to lock the movable contact 5, and the movable contact 5 is in a contact locking state;

then, the first pin 28 is switched to the ground, so that the negative charges accumulated on the surface of the first electrode layer 213 are led out, after the leading-out is finished, the first pin 28 is switched to the positive electrode connected with the power supply, so that the positive charges are accumulated on the surface of the first electrode layer 213, at this time, the second electrode layers 233 and the first electrode layers 213 on the rotor units 23 are homopolymerized to accumulate the positive charges, a repulsive force is generated between the second electrode layers 233 and the first electrode layers 213 under the action of an electric field force, so as to drive the rotor units 23 to rotate in the opposite direction, at this time, due to the transmission unidirectionality of the unidirectional transmission mechanisms 26, the rotor units 23 do not drive the mandrel 22 to rotate, so that the rotor units 23 are reset to the initial positions;

when an external high-voltage circuit needs to be disconnected, each rotor unit 23 works in sequence to drive the core shaft 22 to rotate, the core shaft 22 drives the shifting shaft 10 to rotate, at the moment, under the matching of the first clamping pin 101 and the cam groove 32, the shifting shaft 10 drives the first sliding block 3 to move upwards, the first sliding block 3 drives the second sliding block 4 to move upwards, and the second sliding block 4 drives the two swinging elastic locking arms 6 to swing downwards until the two swinging elastic locking arms 6 cross the horizontal position; then the two swinging elastic locking arms 6 drive the second sliding block 4 to drive the movable contact 5 to return to the contact-free state, and each rotor unit 23 returns to the initial state again to wait for the next rotation of the driving shaft 10 to drive the movable contact 5 to move.

According to the invention, the four rotor units 23 are used for sequentially driving the core shaft 22 to rotate when rotating under the action of the electric field force, so that the movable contact 5 can be switched between a contact locking state and a contact-free state, the on-off control of an external high-voltage circuit is realized, the use occasion of using the magnetic sensitive component is adapted, the interference on the magnetic sensitive component is avoided, and the reliability of the magnetic sensitive component is ensured.

Based on the basis of the above-mentioned embodiment, further, each rotor unit 23 all includes the rotor body 231 of annular structure, second fin 232 sets up on the outer wall of rotor body 231, the upper end of rotor body 231 is equipped with first annular, the other end of installing support 24 is equipped with the ring portion, rotor body 231 rotates through first annular and connects on the ring portion, collecting block 25 corresponds the upper end that sets up at ring portion outer wall.

In the embodiment, the first ring groove is formed in the rotor body 231, so that the ring part of the mounting bracket 24 is embedded into the first ring groove, and thus, the assembly between the rotor body 231 and the mounting bracket 24 is more compact, which is beneficial to reducing the volume of the whole driving device 2.

On the basis of above-mentioned embodiment, furtherly, one-way drive mechanism 26 includes ratchet 261 and a plurality of shell fragment 262 along circumference equipartition, specifically, the quantity of shell fragment 262 is three, the lower extreme of rotor body 231 is equipped with the second annular, ratchet 261 is fixed to be cup jointed on dabber 22 and is located the second annular, every the equal fixed connection of one end of shell fragment 262 is on the cell wall of second annular, every the other end of shell fragment 262 all meshes with ratchet 261.

During actual use, the rotor body 231 drives the three elastic sheets 262 to rotate, so that the three elastic sheets 262 drive the ratchet 261 to rotate, and the ratchet 261 drives the mandrel 22 to rotate, so that the rotary motion of the rotor body 231 is transmitted to the mandrel 22; when the rotor body 231 rotates in the reverse direction, the spring 262 does not drive the ratchet 261 to rotate.

Based on the above embodiment, further, the collector block 25 is arc-shaped, the two ends of the collector block 25 are respectively provided with a chamfer structure, and the brush 27 is elastically connected to the rotor unit 23 through a return spring.

Specifically, in the present embodiment, the brush 27 is elastically connected to the lower end of the rotor body 231 through the return spring, so that after the brush 27 contacts the collector block 25, the brush 27 can be reliably contacted with the collector block 25, and meanwhile, a chamfer structure is provided on the collector block 25, so that the brush 27 can be pressed against the upper surface of the collector block 25, so that the contact between the collector block 25 and the brush 27 is more reliable, and meanwhile, the next rotor body 231 can continue to drive the spindle 22 to rotate during the time period when the rotation of the previous rotor body 231 is stopped, so that the spindle 22 can be continuously rotated when the four rotor units 23 rotate the driving spindle 22.

Based on the above embodiment, further, the surface of the second electrode layer 233 is covered with an insulating layer 234. In this embodiment, the insulating layer 234 is provided to ensure that charges can be reliably accumulated on the second electrode layer 233, so that the structure is more reliable.

Based on the above embodiment, further, the device further comprises a contact polishing device 9 arranged in the accommodating cavity, wherein the contact polishing device 9 is used for periodically polishing and cleaning the movable contact 5 and the two fixed contacts 7.

In this embodiment, specifically, the contact polishing device 9 includes a polishing body 91, a second spring 92, a third slider 93, a polishing blade 94, a stepping rack 95, a pushing block 96, two fourth sliders 97 and two locking plates 98, the polishing body 91 is L-shaped, the polishing body 91 is fixed on the inner bottom wall of the housing 1, the vertical end of the polishing body 91 is provided with a ratchet structure 911 along the length direction thereof, the horizontal end of the polishing body 91 is provided with a polishing driving groove 912, one end of the second spring 92 is connected to one end of the polishing body 91 through an end plate 99, the two fourth sliders 97 are arranged at intervals and are respectively slidably connected to the vertical end of the polishing body 91, one of the fourth sliders 97 is fixedly connected to the other end of the second spring 92, the third slider 93 is slidably sleeved on the two fourth sliders 97, the polishing blade 94 is arranged on the third slider 93 in a lifting manner, the peripheral wall of the polishing blade 94 is provided with a guiding inclined plane 941, the stepping rack 95 is fixed on the third slider 93, the stepping rack 95 is provided with two pushing teeth 951 between the adjacent teeth, the two sliders 91 are fixed on the bottom ends of the second slider 93, and the two pushing block 98 are engaged with the second slider 93, and the polishing blade 93, the polishing blade 93 is connected to the polishing structure 93;

in this embodiment, specifically, the drive groove 912 of polishing includes end to end's a section 9121, B section 9122, C section 9123, D section 9124, E section 9125, F section 9126 in proper order, a section 9121 and B section 9122's bottom surface height all is higher than C section 9123, D section 9124, E section 9125, F section 9126's bottom surface height, F section 9126 is equipped with an inclined plane of being connected with a section 9121, B section 9122 sets up towards the direction slope of keeping away from the vertical end of polishing body 91, C section 9123 sets up towards the direction slope that is close to a section 9121, D section 9124 and a section 9121 parallel arrangement, E section 9125 sets up towards the direction slope of polishing body 91's vertical end, F section 9126 is in the same straight line with a section 9121.

During actual use, in the process of moving the second slider 4 downwards, the second slider 4 drives the push block 96 to move downwards until the inclined surface of the push block 96 is contacted with teeth of the stepping rack 95, the stepping rack 95 is driven to move for a unit distance towards the direction of the end plate 99, the stepping rack 95 drives the third slider 93 to move for a unit distance, the third slider 93 drives the two fourth sliders 97 to slide towards the direction of the end plate 99, the second spring 92 is compressed to store energy, and after the third slider 93 drives the two locking pieces 98 to move for a unit distance, the two locking pieces 98 are meshed with the ratchet structure 911 on the polishing body 91 again to lock the third slider 93 in a one-way manner; thus, along with the accumulation of the on-off times of the relay, when the third slider 93 drives the second bayonet 931 to enter the B segment 9122 from the a segment 9121 of the polishing driving groove 912, the third slider 93 drives the two locking pieces 98 to gradually move in the direction away from the ratchet structure 911 until the second bayonet 931 enters the C segment 9123 from the B segment 9122, the two locking pieces 98 are completely separated from the ratchet structure 911, and meanwhile, the push block 96 and the step rack 95 are completely dislocated, i.e., the push block 96 cannot be meshed with the step rack 95 when being pressed down, at this time, because the bottom height of the C segment 9123 is lower than the B segment 9122, the second bayonet 931 is limited, so that the second bayonet 931 is prevented from being retracted to the B segment 9122 under the elastic force of the second spring 92,

then the second spring 92 pushes the third slider 93 to move through the fourth slider 97, so that the second pin 931 moves along the C segment 9123 to the D segment 9124, then moves from the D segment 9124 to the E segment 9125, then moves from the E segment 9125 to the F segment 9126, and then returns to the a segment 9121 position through the inclined surface from the F segment 9126, in the process, when the second spring 92 releases energy to drive the third slider 93 to move along the trajectory of the C segment 9123, the third slider 93 drives the polishing sheet 94 to move towards the two fixed contacts 7 and the movable contact 5, at this time, the polishing sheet 94 is clamped between the movable contact 5 and the fixed contact 7 through the guide inclined surface 941 of the edge, and simultaneously performs polishing cleaning on the movable contact 5 and the fixed contact 7 in the subsequent movement, until the second pin 931 moves along the E segment 9125, the third slider 93 drives the polishing sheet 94 to move away from the two fixed contacts 7, that is driven the polishing sheet 94 to be separated from the polishing contact between the movable contact 5 and the fixed contacts 7, so as to complete polishing and cleaning of the fixed contacts; so after the next accumulative break-make number along with the relay, polish the cleanness to movable contact 5 and stationary contact 7 once more, so periodically polish the cleanness to movable contact 5 and stationary contact 7, guarantee the electric property of contact, avoid contact surface adnexed matter such as dust greasy dirt to adhere to on the contact surface after carbonizing and cause the relay electric property to descend, need not the manual work and polish cleanly.

The above description is only a preferred embodiment of the present invention, and therefore, all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.

Claims

1. A non-magnetic driving self-locking self-cleaning relay is characterized by comprising a shell (1) and a driving device (2), wherein the shell (1) is provided with an accommodating cavity, and the driving device (2) is arranged at the top of the shell (1);

the device also comprises a first sliding block (3), a second sliding block (4), a moving contact (5), two swinging elastic locking arms (6), two static contacts (7) and two locking plates (8) which are arranged in the accommodating cavity;

the first sliding block (3) is connected in the accommodating cavity in a sliding mode, the second sliding block (4) is connected in the accommodating cavity in a sliding mode and located below the first sliding block (3), the upper end of the first sliding block (3) is connected with the output end of the driving device (2), the lower end of the first sliding block (3) is connected with the second sliding block (4), the movable contact (5) is fixed on the second sliding block (4), the two static contacts (7) are arranged at intervals, and the two static contacts (7) penetrate through the bottom of the shell (1) and correspond to the movable contact (5);

the two locking plates (8) are symmetrically arranged on the inner wall of the shell (1), arc-shaped locking parts (81) are arranged at two ends of each locking plate (8), the two swing elastic locking arms (6) are symmetrically arranged, the two swing elastic locking arms (6) are respectively and rotatably connected to the inner side wall of the shell (1), one ends of the two swing elastic locking arms (6) are movably hinged to the second sliding block (4), and the other ends of the two swing elastic locking arms (6) are abutted to the two locking plates (8) in a one-to-one correspondence manner;

the driving device (2) comprises a stator barrel (21), a mandrel (22) and four rotor units (23) which are sequentially arranged at equal intervals from top to bottom; end covers (211) are fixed at the upper end and the lower end of the stator barrel (21), a spiral first fin (212) is arranged on the inner wall of the stator barrel (21), and a first electrode layer (213) capable of accommodating electric charges is coated on the upper surface of the first fin (212); four mounting brackets (24) which are arranged at equal intervals are fixedly mounted on the inner wall of the stator barrel (21), the four mounting brackets (24) are arranged in a cross shape, and one ends of the four mounting brackets (24) are respectively and movably sleeved on the mandrel (22) correspondingly; a collector block (25) electrically conducted with the first electrode layer (213) is further fixed to the other end of each mounting bracket (24); the mandrel (22) is rotationally connected to the two end covers (211), and the lower end of the mandrel penetrates through the end covers (211); the four rotor units (23) are movably sleeved on the mandrel (22) and are rotatably connected to the four mounting brackets (24) in a one-to-one correspondence manner; each rotor unit (23) is provided with a second fin (232) which is spiral and parallel to the first fin (212), and the lower surface of the second fin (232) is coated with a second electrode layer (233) capable of containing electric charges; a unidirectional transmission mechanism (26) for driving the rotor unit (23) to rotate the mandrel (22) in a unidirectional manner is arranged between each rotor unit (23) and the mandrel (22);

the lower ends of the three upper rotor units (23) are respectively provided with an electric brush (27) which is electrically conducted with the corresponding second electrode layer (233), and each electric brush (27) is electrically contacted with the corresponding collector block (25) when the corresponding rotor unit (23) finishes rotating, so that the charges on the second electrode layer (233) of the corresponding rotor unit (23) can flow onto the second electrode layer (233) of the next rotor unit (23);

a first pin (28) and a second pin (29) are arranged in the end cover (211) above in a penetrating mode, the first pin (28) and the second pin (29) are arranged at intervals, the first pin (28) is electrically conducted with the first electrode layer (213), and the second pin (29) is electrically conducted with the current collecting block (25) located at the top;

the lower extreme of dabber (22) is connected with one and dials axle (10), it is equipped with first bayonet lock (101) to dial axle (10) epirelief, the upper end of first slider (3) is provided with ring cam portion (31), the inner wall of ring cam portion (31) is seted up and is used for matching dabber (22) unidirectional rotation's cam groove (32), first bayonet lock (101) activity is inlayed and is located in cam groove (32), the lower extreme and the second slider (4) activity hinge joint of first slider (3).

2. The non-magnetic driving self-locking type self-cleaning relay according to claim 1, wherein the swinging elastic locking arm (6) comprises a swinging arm (61), a roller bracket (62), a contact roller (63) and a first spring (64), the swinging arm (61) is rotatably connected to the inner side wall of the housing (1), one end of the swinging arm (61) is movably hinged to the second slider (4), the first spring (64) is arranged in the swinging arm (61), one end of the roller bracket (62) movably extends into the other end of the swinging arm (61) and then abuts against the first spring (64), and the contact roller (63) abuts against the locking plate (8).

3. A non-magnetic driving self-locking type self-cleaning relay according to claim 1, wherein each of the rotor units (23) comprises a rotor body (231) having a ring structure, the second fins (232) are disposed on an outer wall of the rotor body (231), a first ring groove is disposed at an upper end of the rotor body (231), a ring portion is disposed at the other end of the mounting bracket (24), the rotor body (231) is rotatably connected to the ring portion through the first ring groove, and the current collecting block (25) is correspondingly disposed at an upper end of the outer wall of the ring portion.

4. A non-magnetic self-cleaning relay of self-locking type, according to claim 3, characterized in that said one-way transmission mechanism (26) comprises a ratchet wheel (261) and a plurality of elastic pieces (262) uniformly distributed along the circumferential direction, said rotor body (231) has a second ring groove at the lower end thereof, said ratchet wheel (261) is fixedly connected to said mandrel (22) and located in said second ring groove, one end of each of said elastic pieces (262) is fixedly connected to the wall of said second ring groove, and the other end of each of said elastic pieces (262) is engaged with said ratchet wheel (261).

5. A non-magnetically actuated self-locking type self-cleaning relay according to claim 1, wherein the surface of said second electrode layer (233) is covered with an insulating layer (234).

6. A non-magnetic driving self-locking type self-cleaning relay according to any one of claims 1 to 5, further comprising a contact polishing device (9) arranged in the accommodating cavity, wherein the contact polishing device (9) is used for periodically polishing and cleaning the moving contact (5) and the two fixed contacts (7).

7. A non-magnetic driving self-locking type self-cleaning relay according to claim 6, wherein the contact polishing device (9) comprises a polishing body (91), a second spring (92), a third slider (93), a polishing blade (94), a step rack (95), a pushing block (96), two fourth sliders (97) and two locking plates (98), the polishing body (91) is L-shaped, the polishing body (91) is fixed on the inner bottom wall of the housing (1), the vertical end of the polishing body (91) is provided with a ratchet structure (911) along the length direction thereof, the horizontal end of the polishing body (91) is provided with a polishing driving groove (912), one end of the second spring (92) is connected to one end of the polishing body (91) through an end plate (99), the two fourth sliders (97) are arranged at intervals and respectively slidably connected to the vertical end of the polishing body (91), one of the fourth slider (97) is fixedly connected to the other end of the second spring (92), the third slider (93) is slidably sleeved on the two fourth sliders (97), the lifting slider (94) is arranged on the lifting and the third slider (93) is arranged on the lifting and the lifting slider (93) is arranged on the peripheral wall of the polishing body (94), step-by-step rack (95) is gone up and has been seted up between its adjacent tooth and dodge recess (951), ejector pad (96) are fixed at the lower tip of second slider (4) and are located step-by-step rack (95) directly over, two the one end of locking plate (98) is fixed on third slider (93), two the other end of locking plate (98) can with the ratchet structure (911) meshing on polishing body (91), the bottom elastic connection of third slider (93) has a second bayonet lock (931), second bayonet lock (931) activity is inlayed and is located in the driving groove (912) of polishing.

8. A non-magnetic driven self-locking type self-cleaning relay according to claim 7, wherein the polishing driving groove (912) comprises a section a (9121), a section B (9122), a section C (9123), a section D (9124), a section E (9125) and a section F (9126) which are sequentially connected end to end, the heights of the bottom surfaces of the section a (9121) and the section B (9122) are all higher than the heights of the bottom surfaces of the section C (9123), the section D (9124), the section E (9125) and the section F (9126), the section F (9126) is provided with an inclined surface connected with the section a (9121), the section B (9122) is inclined towards a direction far away from the vertical end of the polishing body (91), the section C (9123) is inclined towards a direction close to the section a (9121), the section D (9124) is parallel to the section a (9121), the section E (9125) is inclined towards a direction of the polishing body (91), and the section F (9126) is inclined in the same direction as the vertical end of the polishing body (9121).

9. An on-off locking method of a non-magnetically driven self-locking type self-cleaning relay according to any one of claims 1 to 8, comprising the steps of:

s100: when an external high-voltage circuit needs to be connected, the driving device (2) is connected with electricity to drive the first sliding block (3) to move downwards, the first sliding block (3) drives the second sliding block (4) to move downwards, the second sliding block (4) drives the two swinging elastic locking arms (6) to swing upwards until the two swinging elastic locking arms (6) swing upwards to cross a horizontal position, the two swinging elastic locking arms (6) are matched with the locking plate (8) to generate downward pressure on the second sliding block (4) to push the second sliding block (4) to move downwards, the second sliding block (4) drives the movable contact (5) to move downwards to electrically contact with the two static contacts (7), and therefore the external high-voltage circuit is connected,

at the moment, the two swing elastic locking arms (6) are in one-to-one correspondence to abut against locking parts (81) at the upper ends of the two locking plates (8), so that the two swing elastic locking arms (6) are locked by the locking parts (81) of the locking plates (8), and the movable contact (5) is in a contact locking state;

s200: when an external high-voltage circuit needs to be disconnected, the driving device (2) drives the first sliding block (3) to move upwards, the first sliding block (3) drives the second sliding block (4) to move upwards, the second sliding block (4) drives the two swinging elastic locking arms (6) to move out of the locking parts (81) of the locking plates (8) respectively until the two swinging elastic locking arms (6) swing downwards to cross the horizontal position, the two swinging elastic locking arms (6) are in an oblique downward inclined state, at the moment, the two swinging elastic locking arms (6) are matched with the locking plates (8) respectively to generate upward thrust on the second sliding block (4) to push the second sliding block (4) to move upwards, the second sliding block (4) drives the movable contact (5) to move upwards, and the external high-voltage circuit is disconnected,

until the two swing elastic locking arms (6) are abutted against a locking part (81) on the lower end of the locking plate (8), the locking part (81) locks the two swing elastic locking arms (6) so that the movable contact (5) is kept in a state of being separated from the static contact (7).