CN117238725A - High-voltage direct-current relay - Google Patents
High-voltage direct-current relay Download PDFInfo
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- CN117238725A CN117238725A CN202311523820.4A CN202311523820A CN117238725A CN 117238725 A CN117238725 A CN 117238725A CN 202311523820 A CN202311523820 A CN 202311523820A CN 117238725 A CN117238725 A CN 117238725A
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- 238000007790 scraping Methods 0.000 claims description 60
- 230000005389 magnetism Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 description 24
- 238000005381 potential energy Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a high-voltage direct current relay, which relates to the field of relays and comprises a mounting plate, wherein an electromagnetic assembly is arranged on one side of the mounting plate, a fixed plate is connected to one side of the mounting plate above the electromagnetic assembly, a movable plate is rotatably connected to the fixed plate, a moving contact and an elastic reset assembly are respectively connected to two ends of the top surface of the movable plate, the distance between the position of the elastic reset assembly and a rotating shaft of the movable plate is greater than the distance between the moving contact and the rotating shaft of the movable plate, an elastic hammering assembly is arranged on the fixed plate, and the elastic hammering assembly is used for hammering one end, far away from the rotating shaft, of the bottom surface of the movable plate in the state of power failure of the electromagnetic assembly. According to the invention, the movable contact is arranged at the short force arm end of the movable plate of the lever structure, the elastic reset component is connected at the long force arm end, and the elastic hammering component is arranged at the position corresponding to the bottom of the long force arm end of the movable plate, so that the situation that the fixed contact and the movable contact are adhered and cannot be separated is effectively avoided.
Description
Technical Field
The invention relates to the field of relays, in particular to a high-voltage direct-current relay.
Background
The relay is an electronic control device, which is generally applied to an automatic control circuit, and uses smaller current to control larger current, so that the relay plays roles of automatic adjustment, safety protection, circuit switching and the like in the circuit.
In the existing direct current relay, an electromagnetic component is included, the electromagnetic component and an elastic reset component in the relay jointly control the position state of a moving contact, the moving contact is often contacted with a fixed contact when the electromagnetic component is electrified, and when the electromagnetic component is powered off, the moving contact is separated from the fixed contact and reset under the action of the elastic reset component.
For the above related art, when the conventional high-voltage direct current relay is in a state of high current, there is an excessive state from turn-off to attraction, in this state, sparks are easily generated at the contact positions, the situation that the moving contact and the fixed contact of the relay are easy to adhere is easily caused, and when the electric arc between the fixed contact and the moving contact generates a discharge phenomenon, organic matters (such as nitrogen and oxygen) in the air are decomposed, black attachments are formed on the surfaces of the contacts, and along with the increase of the on-off times, the attachments form uneven foreign matter layers between the contact surfaces of the fixed contact and the moving contact, so that the situation that adhesion is easily caused between the contacts of the relay is more easy to cause the problem that the fixed contact and the moving contact cannot be separated due to adhesion in the conventional high-voltage direct current relay.
Disclosure of Invention
Based on the above, the invention aims to provide a high-voltage direct-current relay so as to solve the technical problem that a fixed contact and a moving contact of the existing high-voltage direct-current relay are easy to adhere and cannot be separated.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a high-voltage direct current relay, includes the mounting panel, electromagnetic assembly is installed to one side of mounting panel, mounting panel one side is connected with the fixed plate in electromagnetic assembly's top, it is connected with the fly leaf to rotate on the fixed plate, the both ends of fly leaf top surface are connected with moving contact and elasticity subassembly that resets respectively, and connect the distance that the position department of elasticity subassembly that resets and fly leaf pivot are greater than the distance of moving contact and fly leaf pivot, be provided with elasticity hammering subassembly on the fixed plate be used for hammering the one end that the pivot was kept away from to the fly leaf bottom under the state of electromagnetic assembly outage.
Through adopting above-mentioned technical scheme, set up the moving contact at the short arm of force end of the fly leaf of lever structure, connect the elasticity subassembly that resets at long arm of force end, and set up the elasticity hammering subassembly in the position department that corresponds the long arm of force end bottom of fly leaf, when electromagnetic component outage, when needs fixed contact and moving contact disconnection, the bottom of the long arm of force end of elasticity hammering subassembly is released and then hammering fly leaf, even fixed contact and moving contact are in the adhesion state, the elasticity hammering subassembly utilizes lever principle also can exert sufficient force to two contacts, make fixed contact and moving contact separation, effectively avoid appearing the adhesion and unable divided condition between fixed contact and the moving contact.
The invention is further characterized in that one side of the mounting plate is fixedly connected with two elastic sheets, a connecting column is fixedly connected between the tail ends of the two elastic sheets, the connecting column is slidably connected with the tail end of the movable plate, a sliding sheet is rotatably connected in the middle, and scraping blocks are fixedly connected to two sides of the end part of the sliding sheet, which is far away from the connecting column.
Through adopting above-mentioned technical scheme, when the fly leaf received electromagnetic assembly magnetic attraction and rotated, the elastic sheet can be pulled down and crooked, and the in-process of bending accumulates elastic potential energy, and the fly leaf that is convenient for reset when electromagnetic assembly outage utilizes the scraping piece to clear up the contact surface of fixed contact and moving contact at the in-process that relay on at every turn was cut off, effectively prevents fixed contact and moving contact's surface adhesion foreign matter.
The invention is further characterized in that one side of the mounting plate is fixedly connected with two fixed contacts, the scraping blocks are fixedly connected with two scraping strips with opposite directions, and the scraping strips are used for scraping foreign matters on the surfaces of the fixed contacts and the moving contacts.
Through adopting above-mentioned technical scheme, two scraping strips that face opposite are directed against fixed contact and moving contact respectively, make the slide can be fine simultaneously strike off the foreign matter on fixed contact and the moving contact at gliding in-process, effectively avoid the foreign matter to accumulate on fixed contact and moving contact and arouse the adhesion between the contact.
The invention is further characterized in that the movable plate is fixedly connected with a guide block at a position close to the movable contact, the sliding piece is connected in the guide block in a sliding manner, and the sliding direction of the sliding piece is orthogonal with a connecting line between the two movable contacts.
Through adopting above-mentioned technical scheme for two sets of fixed contacts and moving contact can both receive the clearance of scraping the strip simultaneously, avoid appearing one of them fixed contact and moving contact and the difference appears and cause two sets of contacts break-make inconsistent with another one, effectively prolonged the life of relay.
The invention is further characterized in that the mounting plate is fixedly connected with a hammering seat, the hammering seat is rotationally connected with a hammer rod, a torsion spring is arranged at the rotating shaft of the hammer rod, and the end part of the hammer rod is rotationally connected with a magnetic attraction block.
Through adopting above-mentioned technical scheme, utilize the process of fly leaf downward movement to inhale the piece with the terminal magnetism of hammer stem and push down for the piece is inhaled to magnetism reaches the second magnetism and inhale the attraction within range of platform and is attracted the laminating, and at hammer stem pivoted in-process down, torsion spring can accumulate elastic potential energy, and at the moment of electromagnetic component outage, the hammer stem just can release and then hammer the piece that is hit of fly leaf bottom surface, makes two sets of fixed contact and moving contact can be better separately, avoids appearing the phenomenon of adhesion contact.
The invention is further arranged that the bottom surface of the movable plate is fixed with the magnetic attraction piece, the surface of the fixed plate is provided with a first magnetic attraction table corresponding to the magnetic attraction piece, and one side of the first magnetic attraction table is provided with a second magnetic attraction table corresponding to the magnetic attraction block.
Through adopting above-mentioned technical scheme, the piece is inhaled to magnetism that the first magnetism is used for corresponding fly leaf bottom surface to be connected, is used for making the fly leaf rotate when the electromagnetic assembly circular telegram, and then makes two sets of fixed contacts that correspond each other and moving contact each other, and the second magnetism inhale the platform when the electromagnetic assembly circular telegram, when the magnetism inhale the piece and be close, is used for timely absorption magnetism to inhale the piece for the hammer lever rotates, and torsion spring accumulates elastic potential energy.
The invention is further arranged that the bottom surface of the movable plate is fixedly connected with the impacted piece, and the width of the impacted piece is larger than the width of the tail end of the hammer rod.
By adopting the technical scheme, the striking piece provides a good striking position for the head of the hammer rod, so that kinetic energy of movement of the tail end of the hammer rod can be instantly and efficiently converted into torque of the movable plate, an instant force is applied to the movable plate to resist adhesion force between the fixed contact and the movable contact, and the fixed contact and the movable contact are close to the rotating shaft of the movable plate due to the principle of leverage, and the fixed contact and the movable contact are stably separated under the condition of adhesion due to the principle of leverage striking the rotating shaft of the movable plate on the bottom surface of the movable plate by the hammer rod.
The invention is further characterized in that the mounting plate is fixedly connected with two fixed seats, the movable plate is rotatably connected to the fixed seats, the top surfaces of the fixed seats incline, and the movable plate contacts with the bottom surface of the movable plate under the condition that the electromagnetic assembly is powered off.
Through adopting above-mentioned technical scheme, utilize the inclined plane of fixing base top surface to carry out spacingly to the fly leaf that can be fine, avoid the fly leaf to rotate excessively and make magnetism inhale the piece and break away from the magnetic force that first magnetism inhaled the platform and attract the scope, because the inclined plane of fixing base top surface can be fine restriction fly leaf when electromagnetic assembly does not switch on the angle, make the magnetism of fly leaf bottom surface inhale the piece and can be stable by first magnetism inhale the platform absorption and make the fly leaf rotate in electromagnetic assembly energized in the twinkling of an eye, and then make the stable contact of fixed contact and moving contact.
The invention is further arranged that the scraping strips cannot be bent in the moving direction of the sliding piece, the two scraping strips on the scraping block are parallel to each other and can be bent in opposite directions, and the other ends of the two scraping strips on the same scraping block are fixedly connected to a fixed block.
Through adopting above-mentioned technical scheme for the slide is at gliding in-process, scrapes the fixed contact that the strip can be stable and scrapes the foreign matter on moving contact surface, and can not appear scraping the strip and crooked make the fixed contact and the surface foreign matter of moving contact strike off the degree inconsistent at the slip direction of slide, and because scrape the strip can the bending in opposite directions, consequently scrape the surface of fixed contact and moving contact of laminating that the strip can be better at the in-process of slide motion.
In summary, the invention has the following advantages:
1. according to the invention, the movable contact is arranged at the short moment arm end of the movable plate of the lever structure, the elastic reset component is connected at the long moment arm end, and the elastic hammering component is arranged at the position corresponding to the bottom of the long moment arm end of the movable plate, when the electromagnetic component is powered off and the fixed contact is required to be disconnected with the movable contact, the elastic hammering component is released so as to hammer the bottom of the long moment arm end of the movable plate, even if the fixed contact and the movable contact are in an adhesion state, the elastic hammering component can apply enough force to the two contacts by utilizing the lever principle, so that the fixed contact and the movable contact are separated, and the situation that the fixed contact and the movable contact cannot be separated due to adhesion is effectively avoided;
2. according to the invention, the sliding piece is connected on the movable plate in a sliding way, the scraping pieces for scraping the foreign matters on the fixed contact and the movable contact are connected on the two sides of the tail end of the sliding piece, the other end of the sliding piece is connected with the elastic reset component in the relay, the elastic reset component is deformed according to the state of the movable plate, and the sliding piece is pushed to slide on the surface of the movable plate while the elastic reset component is deformed, so that the scraping pieces on the tail end of the sliding piece smoothly scrape the foreign matters on the surfaces of the fixed contact and the movable contact, and the phenomenon that the fixed contact and the movable contact are adhered due to the foreign matters on the contact surface after the relay is used for a long time is effectively avoided.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the inside of the housing of the present invention in an open circuit state;
FIG. 3 is a perspective view of the open circuit state inside the housing at another view angle according to the present invention;
FIG. 4 is an enlarged view of FIG. 3A in accordance with the present invention;
FIG. 5 is a perspective view of the internal passage of the housing of the present invention;
FIG. 6 is an enlarged view of B of FIG. 5 in accordance with the present invention;
FIG. 7 is a perspective view of another view of the internal passage of the housing of the present invention;
fig. 8 is a side cross-sectional view of a scraper block of the present invention.
In the figure: 1. a mounting plate; 2. a housing; 3. an electromagnetic assembly; 4. a fixing plate; 5. a fixing seat; 6. a movable plate; 7. a first magnetic attraction table; 8. a second magnetic attraction table; 9. a magnetic attraction piece; 10. a hit piece; 11. an elastic sheet; 12. a connecting column; 13. limiting sliding grooves; 14. a slide sheet; 15. a guide block; 16. scraping blocks; 17. scraping the strip; 18. a fixed contact; 19. a moving contact; 20. a hammering seat; 21. a hammer rod; 22. a torsion spring; 23. and a magnetic attraction block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
The utility model provides a high-voltage direct current relay, as shown in fig. 1-8, including mounting panel 1, the edge of mounting panel 1 is provided with the joint structure that is used for connecting shell 2, shell 2 can be easily the joint on mounting panel 1 when the installation, electromagnetic component 3 is installed to one side of mounting panel 1, concretely, electromagnetic component 3 utilizes electromagnetic principle can possess magnetism under the state of circular telegram, mounting panel 1 one side is connected with fixed plate 4 in electromagnetic component 3's top, be connected with fly leaf 6 on the fixed plate 4 rotation, the both ends of fly leaf 6 top surface are connected with moving contact 19 and elastic reset assembly respectively, and the distance of connecting elastic reset assembly's position department and fly leaf 6 pivot is greater than moving contact 19 and fly leaf 6 pivot distance, be provided with elastic hammering subassembly on the fixed plate 4, be used for hammering the one end that the fly leaf 6 bottom surface kept away from the pivot under the state of electromagnetic component 3, make elastic hammering subassembly when the one end that fly leaf 6 pivot was kept away from to the fly leaf 6, can exert sufficient moment to make it rotate, enough resist two contacts that adhere each other between the contact.
Referring to fig. 3 and 4, two elastic sheets 11 are fixedly connected to one side of the mounting plate 1, specifically, the elastic sheets 11 are electrified by the electromagnetic assembly 3, the magnetic attraction sheets 9 are pressed downwards to present a curved state in the process of rotating the movable plate 6 by attraction, a connecting column 12 is fixedly connected between the tail ends of the two elastic sheets 11, the connecting column 12 is slidably connected to the tail end of the movable plate 6, a sliding sheet 14 is rotatably connected to the middle part, both sides of the end part of the sliding sheet 14 far away from the connecting column 12 are fixedly connected with scraping blocks 16, when the movable plate 6 is magnetically attracted by the electromagnetic assembly 3 to rotate, the elastic sheets 11 can be pulled downwards to bend, elastic potential energy is accumulated in the bending process, the movable plate 6 is conveniently reset when the electromagnetic assembly 3 is powered off, the contact surface of the fixed contact 18 and the movable contact 19 can be well cleaned in the process of each power-on and power-off of the relay by utilizing the scraping blocks 16, and the surface adhesion of the fixed contact 18 and the movable contact 19 is effectively prevented.
Referring to fig. 3 and 4, the movable plate 6 is fixedly connected with a guide block 15 at a position close to the movable contact 19, the sliding piece 14 is slidably connected in the guide block 15, specifically, the guide block 15 and the limiting chute 13 limit the movement state of the sliding piece 14 together, so that the sliding piece can only slide along the length direction of the sliding piece 14, the sliding direction of the sliding piece 14 is orthogonal to the connecting line between the two movable contacts 19, both the two fixed contacts 18 and the movable contact 19 can be cleaned by the scraping strip 17 at the same time, and inconsistent connection between the two fixed contacts 18 and the movable contact 19 due to difference between the cleaning degree of one fixed contact 18 and the movable contact 19 and the other fixed contact is avoided, so that the service life of the relay is effectively prolonged.
Referring to fig. 3, 4 and 8, two fixed contacts 18 are fixedly connected to one side of the mounting plate 1, the two fixed contacts 18 respectively correspond to two moving contacts 19 on the moving plate 6, two opposite-facing scraping strips 17 are fixedly connected to the scraping blocks 16, the scraping strips 17 connected to the scraping blocks 16 on two sides of the sliding plate 14 respectively face two sides of the sliding plate 14 and are orthogonal to the sliding direction of the sliding plate 14, specifically, edges of the scraping strips 17 are curved, the curved portions of the two scraping strips 17 on the same scraping block 16 face opposite directions, and face the corresponding contacts respectively, so that the scraping strips 17 can scrape the foreign matters on the surfaces of the contacts stably in the bidirectional movement process of the sliding plate 14, the scraping strips 17 are used for scraping the foreign matters on the surfaces of the fixed contacts 18 and the moving contacts 19, and the two opposite-facing scraping strips 17 respectively face the fixed contacts 18 and the moving contacts 19, and the sliding plate 14 can well scrape the foreign matters on the fixed contacts 18 and the moving contacts 19 simultaneously, and the foreign matters on the fixed contacts 18 and the moving contacts 19 can be effectively prevented from being accumulated.
Referring to fig. 3, 5 and 6, a magnetic attraction piece 9 is fixed on the bottom surface of the movable plate 6, a first magnetic attraction table 7 corresponding to the magnetic attraction piece 9 is arranged on the surface of the fixed plate 4, a second magnetic attraction table 8 corresponding to a magnetic attraction block 23 is arranged on one side of the first magnetic attraction table 7, the first magnetic attraction table 7 is used for enabling the movable plate 6 to rotate when the electromagnetic assembly 3 is electrified, two groups of mutually corresponding fixed contacts 18 and moving contacts 19 are further contacted with each other, and the second magnetic attraction table 8 is used for timely adsorbing the magnetic attraction block 23 when the magnetic attraction block 23 is close to the electromagnetic assembly 3 when the magnetic attraction block 23 is electrified, so that the hammer rod 21 rotates, and the torsion spring 22 stores elastic potential energy.
Referring to fig. 2, 3 and 4, two fixing bases 5 are fixedly connected to the mounting plate 1, the movable plate 6 is rotatably connected to the fixing bases 5, the top surface of the fixing bases 5 is inclined and contacts with the bottom surface of the movable plate 6 under the condition that the electromagnetic assembly 3 is powered off, the movable plate 6 can be well limited by the inclined surface of the top surface of the fixing bases 5, the movable plate 6 is prevented from rotating excessively to enable the magnetic attraction piece 9 to be separated from the magnetic attraction range of the first magnetic attraction table 7, and the inclined surface of the top surface of the fixing bases 5 can well limit the angle of the movable plate 6 when the electromagnetic assembly 3 is not powered on, so that the magnetic attraction piece 9 on the bottom surface of the movable plate 6 can be stably attracted by the first magnetic attraction table 7 at the moment that the electromagnetic assembly 3 is powered on to enable the movable plate 6 to rotate, and further enable the fixed contact 18 to be stably contacted with the movable contact 19.
Referring to fig. 5 and 6, a hammering seat 20 is fixedly connected to the mounting plate 1, a hammer rod 21 is rotatably connected to the hammering seat 20, a torsion spring 22 is disposed at a rotating shaft of the hammer rod 21, a magnetic attraction block 23 is rotatably connected to an end portion of the hammer rod 21, the magnetic attraction block 23 rotatably connected to an end of the hammer rod 21 can always face the second magnetic attraction table 8 with a bottom surface, so that the magnetic attraction block 23 can be attracted more easily after entering a magnetic attraction range of the second magnetic attraction table 8, the magnetic attraction block 23 at the end of the hammer rod 21 is pressed down by a downward movement process of the movable plate 6, the magnetic attraction block 23 reaches the attraction range of the second magnetic attraction table 8 to be attracted and attached, the torsion spring 22 can accumulate elastic potential energy in a downward rotation process of the hammer rod 21, and the hammer rod 21 can release the impacted piece 10 on the bottom surface of the movable plate 6 at the instant of power failure of the electromagnetic assembly 3, so that two groups of fixed contacts 18 and the movable contact 19 can be separated better, and a phenomenon of adhesion is avoided.
Referring to fig. 3 and 5, in the process of moving the magnetic attraction piece 9 connected to the bottom surface of the movable plate 6 towards the first magnetic attraction table 7, as the relative distance is smaller, the attraction of the first magnetic attraction table 7 to the magnetic attraction piece 9 is larger, and the curved elastic piece 11 is also the same, in the process of rotating the movable plate 6, as the degree of curvature is increased, the accumulated elastic force is larger, in the process of rotating the movable plate 6, the hammer rod 21 is pressed down, the resistance is caused to the rotation of the movable plate 6, the effect of buffering the movable plate 6 is achieved, the movable contact 19 is effectively prevented from impacting the fixed contact 18 at a larger speed due to the fact that the movable plate 6 rotates too fast, in the process of rotating the hammer rod 21 under pressure, the rotation of the movable plate 6 can be buffered, and contact collision damage caused by the fact that the movable contact 19 and the fixed contact are closed too fast is effectively avoided.
Referring to fig. 2, 5 and 6, the bottom surface of the movable plate 6 is fixedly connected with the impact piece 10, specifically, the bottom surface of the movable plate 6 is vertically and horizontally fixed with a plurality of reinforcing rods, edges of the impact piece 10 are fixedly connected to the reinforcing rods and are parallel to the reinforcing rods, when the tail end of the hammer rod 21 is hammered to the impact piece 10, the movable plate 6 can reduce elastic deformation as much as possible, better force is transmitted to the other end of the lever structure, the width of the impact piece 10 is larger than the width of the tail end of the hammer rod 21, specifically, a magnetic attraction block 23 connected to the tail end of the hammer rod 21 can also serve as a balancing weight, force generated when the impact piece 10 is hammered is effectively increased, the impact piece 10 provides a good beating position for the head of the hammer rod 21, kinetic energy of the tail end of the hammer rod 21 can be instantaneously and efficiently converted into torque of the movable plate 6, and the movable plate 6 is applied with a moment to the movable contact 18 and the movable contact 19, and the movable contact 18 is blocked by the moment, and the movable contact 19 is separated from the rotating shaft 18 under the condition that the rotating shaft of the lever contact 6 is more stable.
Referring to fig. 3 and 4, the scraping strips 17 cannot bend in the moving direction of the sliding piece 14, the two scraping strips 17 on the scraping piece 16 are parallel to each other and can bend in opposite directions, the other ends of the two scraping strips 17 on the same scraping piece 16 are fixedly connected to a fixed block, so that when the sliding piece 14 slides in the process that the scraping strips 17 pass through the fixed contact 18 and the moving contact 19, the scraping strips 17 bend towards the other scraping strips 17 to better adapt to the surfaces of the fixed contact 18 or the moving contact 19, foreign matters on the surfaces of the fixed contact 18 and the moving contact 19 can be scraped stably by the scraping strips 17, the situation that the scraping degree of the foreign matters on the surfaces of the fixed contact 18 and the moving contact 19 is inconsistent due to the bending of the scraping strips 17 in opposite directions can be avoided, and the scraping strips 17 can be better attached to the surfaces of the fixed contact 18 and the moving contact 19 in the moving process of the sliding piece 14.
The working principle of the invention is as follows: when the electromagnetic assembly 3 is electrified, the magnetic attraction piece 9 is attracted by the first magnetic attraction table 7 to move downwards, the movable plate 6 is driven to rotate by taking the rotating shaft on the fixed seat 5 as an axis, in the process, the elastic piece 11 bends downwards to accumulate elastic potential energy, the connecting column 12 connected with the tail end of the elastic piece 11 moves in the limiting chute 13 towards the rotating shaft of the movable plate 6, the connecting column 12 pushes the sliding piece 14 to move so that the scraping block 16 at the front end of the sliding piece 14 passes through the space between the fixed contact 18 and the movable contact 19, when the scraping block 16 passes through the space between the fixed contact 18 and the movable contact 19, the scraping strip 17 connected with the scraping block 16 can scrape surface foreign matters on the fixed contact 18 and the movable contact 19 once, in the process of continuing to rotate downwards, the impacted piece 10 contacts the tail end of the hammer rod 21, presses the hammer rod 21 downwards, the hammer rod 21 rotates by taking the rotating shaft at the top end of the hammering seat 20 as an axis, the torsion spring 22 accumulates elastic potential energy in the downward rotation process of the hammer rod 21 until the magnetic attraction block 23 at the tail end of the hammer rod 21 reaches the attraction range of the second magnetic attraction table 8 to be attracted, the tail end of the hammer rod 21 is separated from contact with the impacted piece 10, the bottom surface of the magnetic attraction block 23 is contacted with the second magnetic attraction table 8, when the magnetic attraction piece 9 is contacted with the first magnetic attraction table 7, the two groups of fixed contacts 18 and the movable contact 19 are contacted, the relay is connected, when the electromagnetic assembly 3 is powered off, the magnetic attraction piece 9 and the magnetic attraction block 23 simultaneously lose attraction force and are influenced by the elastic piece 11 in a bending state, at the moment, the movable plate 6 can immediately rotate and reset, the hammer rod 21 simultaneously rotates and resets at a high speed, the impact force exerted on the impacted piece 10 in the resetting process of the hammer rod 21 is in combination with the lever principle, so that the fixed contacts 18 and the movable contact 19 can be easily separated, the situation of adhesion between the fixed contact 18 and the moving contact 19 is effectively avoided, meanwhile, in the resetting process of the sliding piece 14, the scraping strip 17 can also clean foreign matters on the contact surface of the fixed contact 18 and the moving contact 19 for the second time, and the adhesion phenomenon between the contacts of the relay is further avoided.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (9)
1. The utility model provides a high voltage direct current relay, includes mounting panel (1), electromagnetic component (3), its characterized in that are installed to one side of mounting panel (1): mounting panel (1) one side is connected with fixed plate (4) in the top of electromagnetic component (3), it is connected with fly leaf (6) to rotate on fixed plate (4), the both ends of fly leaf (6) top surface are connected with moving contact (19) and elasticity subassembly that resets respectively, and the distance of connecting the position department of elasticity subassembly that resets and fly leaf (6) pivot is greater than the distance of moving contact (19) and fly leaf (6) pivot, be provided with elasticity hammering subassembly on fixed plate (4) be used for hammering the one end that the pivot was kept away from to fly leaf (6) bottom surface under the state of electromagnetic component (3) outage.
2. The high voltage dc relay of claim 1, wherein: two elastic sheets (11) are fixedly connected to one side of the mounting plate (1), a connecting column (12) is fixedly connected between the tail ends of the two elastic sheets (11), the connecting column (12) is slidably connected to the tail end of the movable plate (6), a sliding sheet (14) is rotatably connected to the middle of the connecting column, and scraping blocks (16) are fixedly connected to two sides of the end part, far away from the connecting column (12), of the sliding sheet (14).
3. The high voltage dc relay of claim 2, wherein: one side of the mounting plate (1) is fixedly connected with two fixed contacts (18), two scraping strips (17) with opposite directions are fixedly connected to the scraping blocks (16), and the scraping strips (17) are used for scraping foreign matters on the surfaces of the fixed contacts (18) and the moving contacts (19).
4. The high voltage dc relay of claim 2, wherein: the movable plate (6) is fixedly connected with a guide block (15) at a position close to the movable contact (19), the sliding piece (14) is slidably connected in the guide block (15), and the sliding direction of the sliding piece (14) is orthogonal with a connecting line between the two movable contacts (19).
5. The high voltage dc relay of claim 1, wherein: the hammer is characterized in that a hammering seat (20) is fixedly connected to the mounting plate (1), the hammering seat (20) is rotationally connected with a hammer rod (21), a torsion spring (22) is arranged at a rotating shaft of the hammer rod (21), and a magnetic attraction block (23) is rotationally connected to the end part of the hammer rod.
6. The high voltage dc relay of claim 5, wherein: the bottom surface of fly leaf (6) is fixed with magnetism and inhales piece (9), the surface of fixed plate (4) is provided with and corresponds magnetism and inhale first magnetism of piece (9) and inhale platform (7), and be provided with the second magnetism that corresponds magnetism and inhale one side of platform (7) and inhale platform (8) of piece (23).
7. The high voltage dc relay of claim 5, wherein: the bottom surface of fly leaf (6) fixedly connected with is strikeed piece (10), the width of strikeed piece (10) is greater than the width of hammer stem (21) terminal.
8. The high voltage dc relay of claim 1, wherein: two fixing seats (5) are fixedly connected to the mounting plate (1), the movable plate (6) is rotationally connected to the fixing seats (5), and the top surface of the fixing seats (5) is inclined and is contacted with the bottom surface of the movable plate (6) under the condition that the electromagnetic assembly (3) is powered off.
9. A high voltage dc relay according to claim 3, characterized in that: the scraping strips (17) cannot bend in the moving direction of the sliding piece (14), the two scraping strips (17) on the scraping block (16) are parallel to each other and can bend in opposite directions, and the other ends of the two scraping strips (17) on the same scraping block (16) are fixedly connected to a fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311523820.4A CN117238725B (en) | 2023-11-16 | 2023-11-16 | High-voltage direct-current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311523820.4A CN117238725B (en) | 2023-11-16 | 2023-11-16 | High-voltage direct-current relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117238725A true CN117238725A (en) | 2023-12-15 |
| CN117238725B CN117238725B (en) | 2024-03-26 |
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| JPS63237316A (en) * | 1987-03-25 | 1988-10-03 | 松下電工株式会社 | Contactor |
| JPH07211209A (en) * | 1994-01-20 | 1995-08-11 | Fujitsu Ten Ltd | Relay sticking preventing apparatus |
| CN104037024A (en) * | 2014-06-12 | 2014-09-10 | 朱红锋 | Lever forced traction type safe relay |
| WO2017107892A1 (en) * | 2015-12-22 | 2017-06-29 | 厦门宏发电力电器有限公司 | Contact assembly and high-voltage direct-current relay thereof |
| CN207752946U (en) * | 2018-01-10 | 2018-08-21 | 厦门赛特勒继电器有限公司 | A kind of high-reliability electrical magnetic relay of low-temperature-rise shock resistance electric current |
| CN110021501A (en) * | 2019-04-15 | 2019-07-16 | 三友联众集团股份有限公司 | A kind of lever relay |
| CN209804559U (en) * | 2019-01-30 | 2019-12-17 | 杨德毅 | Impact device for eliminating relay contact adhesion |
| CN210296239U (en) * | 2019-09-06 | 2020-04-10 | 厦门宏发电力电器有限公司 | Relay for reducing contact jitter |
| CN112086319A (en) * | 2020-08-20 | 2020-12-15 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of resisting short-circuit current |
-
2023
- 2023-11-16 CN CN202311523820.4A patent/CN117238725B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63237316A (en) * | 1987-03-25 | 1988-10-03 | 松下電工株式会社 | Contactor |
| JPH07211209A (en) * | 1994-01-20 | 1995-08-11 | Fujitsu Ten Ltd | Relay sticking preventing apparatus |
| CN104037024A (en) * | 2014-06-12 | 2014-09-10 | 朱红锋 | Lever forced traction type safe relay |
| WO2017107892A1 (en) * | 2015-12-22 | 2017-06-29 | 厦门宏发电力电器有限公司 | Contact assembly and high-voltage direct-current relay thereof |
| CN207752946U (en) * | 2018-01-10 | 2018-08-21 | 厦门赛特勒继电器有限公司 | A kind of high-reliability electrical magnetic relay of low-temperature-rise shock resistance electric current |
| CN209804559U (en) * | 2019-01-30 | 2019-12-17 | 杨德毅 | Impact device for eliminating relay contact adhesion |
| CN110021501A (en) * | 2019-04-15 | 2019-07-16 | 三友联众集团股份有限公司 | A kind of lever relay |
| CN210296239U (en) * | 2019-09-06 | 2020-04-10 | 厦门宏发电力电器有限公司 | Relay for reducing contact jitter |
| CN112086319A (en) * | 2020-08-20 | 2020-12-15 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of resisting short-circuit current |
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| CN117238725B (en) | 2024-03-26 |
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