EP3196907B1 - Kontaktvorrichtung eines schalters - Google Patents

Kontaktvorrichtung eines schalters Download PDF

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Publication number
EP3196907B1
EP3196907B1 EP15842628.8A EP15842628A EP3196907B1 EP 3196907 B1 EP3196907 B1 EP 3196907B1 EP 15842628 A EP15842628 A EP 15842628A EP 3196907 B1 EP3196907 B1 EP 3196907B1
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EP
European Patent Office
Prior art keywords
contact
column body
pressure
bearing
knives
Prior art date
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Active
Application number
EP15842628.8A
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English (en)
French (fr)
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EP3196907A4 (de
EP3196907A1 (de
Inventor
Huahua JIANG
Yanan Liu
Zhipeng DONG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chint Electrics Co Ltd
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Zhejiang Chint Electrics Co Ltd
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Publication date
Application filed by Zhejiang Chint Electrics Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Publication of EP3196907A1 publication Critical patent/EP3196907A1/de
Publication of EP3196907A4 publication Critical patent/EP3196907A4/de
Application granted granted Critical
Publication of EP3196907B1 publication Critical patent/EP3196907B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker

Definitions

  • the present invention relates to the field of power distribution appliances, in particular to a contact device of a circuit breaker.
  • a contact device of a circuit breaker generally comprises a rotation shaft 10, two contact knives 50, a contact support 110, and two pressing plates 30 that are in mounting fit with the contact knives 50, wherein each of the pressing plates 30 is provided with a working surface 301 which is matched with a pressure-bearing shaft 100 and formed by contour machining, and the two working surfaces 301 are of the same plane.
  • Two contact knives 50 of the existing contact device are spaced apart from each other through a locating member 60 and a shaft sleeve 120, and it is necessary to ensure that an avoiding surface 121 corresponds to a welding surface of each contact knife when the shaft sleeve 120 is assembled; a pressure-bearing shaft 100 that is a polished shaft is provided at one end of each of the two contact knives 50, and the pressure-bearing shafts 100 penetrate through the two contact knives 50 and are connected with the contact knives in a riveting manner; two ends of each pressure-bearing shaft 100 are exposed outside the corresponding contact knife respectively and are matched with the working surfaces 301 of the two pressing plates respectively.
  • contacts will rotate about an axis of a mandrel 70 while the contacts are opened or closed, and the pressure-bearing shafts 100 are matched with the working surfaces 301 of the two pressing plates to bear a thrust transferred by the pressing plates 30.
  • the contact knives 50 need to be spaced apart from each other through the locating member 60 and the shaft sleeve 120, and especially it is necessary to ensure the direction of the avoiding surface 121 of the shaft sleeve 120 during assembly, and therefore more device parts are required, thereby causing complicated assembly.
  • CN 1 118 928 A discloses a contact device of a circuit breaker according to the preamble of claim 1.
  • An objective of the present invention is to overcome the defects of the prior art, and provide a contact device of a circuit breaker, which has a simple structure and reliable performances and is convenient to machine and assemble.
  • a contact device of a circuit breaker comprises a rotation shaft 10, two pressing plates 30 provided in contact mounting holes of the rotation shaft 10, and two contact knives 50 arranged side by side, wherein one end of each of the contact knives 50, that is provided with a movable contact point, passes through the corresponding contact mounting hole, and the other end thereof is connected with the rotation shaft 10;
  • two pressure-bearing shafts 100 are provided at one ends, connected with the rotation shaft 10, of the two contact knives 50;
  • each pressure-bearing shaft 100 comprises a first column body 111, and a second column body 112 fixedly connected with one end of the first column body 111, wherein a step surface 101 is formed at the junction between the second column body 112 and the first column body 111, and an area of the step surface 101 is larger than that of a cross section of the first column body 111;
  • the second column bodies 112 of the two pressure-bearing shafts 100 are provided between the two contact knives 50; the end surfaces of the two second column bodies
  • a second working surface 304 matched with the second column body 112 is also provided at a corresponding position of each of the pressing plates 30, such that the stress borne by the pressure-bearing shafts 100 is balanced.
  • each pressure-bearing shaft 100 is a stepped shaft composed of a first column body 111 and a second column body 112, wherein a cross section of the second column body 112 is larger than that of the first column body 111, and the cross section at the conjunction between the second column body 112 and the first column body 111 is formed into a step surface 101.
  • a groove 103 is provided in the conjunction between the first column body 111 and the second column body 112; a first clamp spring is provided inside the groove 103 in a sleeving manner; the area of a cross section of the first clamp spring is larger than that of a cross section of the first column body 111; the step surface 101 is formed at one side, connected with the first column body 111, of the first clamp spring.
  • a pair of support bosses 51 is at least provided at corresponding positions of the two contact knives 50, and the end portions of the support bosses 51 of the two contact knives 50 are in contact location.
  • support bosses 51 are circular column bodies or square column bodies.
  • each of the contact knives 50 is provided with a pressure-bearing hole 54 matched with the corresponding pressure-bearing shaft 100, wherein an aperture size of the pressure-bearing hole 54 is matched with a diameter of the first column body 111, and each of the pressure-bearing shafts 100 is fixed with the corresponding contact knife 50 in a riveting manner after being inserted into the corresponding pressure-bearing hole 54.
  • the contact device further comprises two contact springs 20 provided inside the contact mounting holes of the rotation shaft 10, a mandrel 70 and a contact support 110; one end of each of the two contact springs 20 is connected with the hole wall of the corresponding contact mounting hole, and the other end thereof is connected with the corresponding pressing plate of the two pressing plates 30 respectively; a mandrel hole 53 is further provided in one end, which is connected with the rotation shaft 10, of each of the two contact knives 50; the two contact knives 50 are embedded between the end portions of the contact support 110 and are fixed; the mandrel 70 passes through the mandrel holes 53, penetrates through the contact support 110 and the two contact knives 50 and is connected with the rotation shaft 10.
  • a second clamp spring 90 and a bearing 80 are provided at two ends of the mandrel 70, that are exposed outside the contact support 110, respectively in sequence in a sleeving manner, and the mandrel 70 is provided with a clamping groove 71 in a corresponding position of the second clamp spring, and a bearing groove matched with the bearing 80 is provided in a corresponding position inside the rotation shaft 10.
  • each of the pressing plates 30 is of a U-shaped structure, and connecting holes 303 are provided in conjunctions between two side walls and a bottom wall of the U-shaped structure; the bottom wall at one open side of the U-shaped structure is connected with the corresponding contact spring 20, a working surface 301 matched with the first column body 111 and a second working surface 304 matched with the second column body 112 are formed on the other side of the bottom wall, and contact knife grooves 302 for receiving the contact knifes 50 to pass through and limiting the contact knives 50 are also provided in the corresponding positions of the bottom wall; a locating shaft 40 passes through the connecting holes 303 in two pressing plates 30 that are arranged side by side, in sequence to be connected and located.
  • two pressure-bearing shafts are provided, wherein a step surface is formed on each pressure-bearing shaft, and the end surfaces of the pressure-bearing shafts are arranged oppositely and in contact location to limit the movement of the pressure-bearing shafts towards the end surfaces; secondly, the step surfaces of the pressure-bearing shafts are fit to the contact knives to limit the movement of the pressure-bearing shafts towards the step surfaces; therefore, after the contact mechanism is well assembled, even though the pressure-bearing shafts undergo alternately the changing thrusts to cause loosening of a fixing structure between the pressure-bearing shafts and the contact knives, the pressure-bearing shafts may not move in an axis direction and may also not fall off to cause failure of contacts because the end surfaces of the two pressure-bearing shafts butt against each other, thereby prolonging the life of the product.
  • a contact device of a circuit breaker of the present invention comprises a rotation shaft 10, two pressing plates 30 provided in contact mounting holes of the rotation shaft 10, and two contact knives 50 arranged side by side, wherein one end of each of the contact knives 50, that is provided with a movable contact point, passes through the corresponding contact mounting hole, and the other end thereof is connected with the rotation shaft 10, wherein two pressure-bearing shafts 100 are provided at one ends, connected with the rotation shaft 10, of the two contact knives 50; each pressure-bearing shaft 100 comprises a first column body 111, and a second column body 112 fixedly connected with one end of the first column body 111, wherein a step surface 101 is formed at the junction between the second column body 112 and the first column body 111, and an area of the step surface 101 is larger than that of a cross section of the first column body 111; the second column bodies 112 of the two pressure-bearing shafts 100 are provided between the two contact knives 50; the end surfaces 102 of the two second column bodies 112 are in contact location;
  • the contact device disclosed by the present utility model is provided with two pressure-bearing shafts that are allowed to skew within a certain range in a radial direction, and therefore, nonuniform stress borne by two sides of the pressure-bearing shafts due to the machining precision can be effectively solved, the machining requirements of the product are reduced, and the cost is decreased.
  • a step surface is formed on each pressure-bearing shaft, and the end surfaces of the pressure-bearing shafts are arranged oppositely and in contact location to limit the movement of the pressure-bearing shafts towards the end surfaces; secondly, the step surfaces of the pressure-bearing shafts are fit to the contact knives to limit the movement of the pressure-bearing shafts towards the step surfaces; therefore, after the contact mechanism is well assembled, even though the pressure-bearing shafts undergo alternately the changing thrusts to cause loosening of a fixing structure between the pressure-bearing shafts and the contact knives, the pressure-bearing shafts may not move in an axis direction and may also not fall off to cause failure of contacts because the end surfaces of the two pressure-bearing shafts butt against each other, thereby prolonging the life of the product; if only two pressure-bearing shafts having no step surfaces are provided, there is always the problem that the pressure-bearing shafts are easy to fall off due to different thrusts borne by two ends of the
  • a shaft sleeve 120 provided between one ends of the two contact knives can be omitted for the contact device, such that parts are decreased, and the technological difficulty is reduced.
  • the contact device comprises a rotation shaft 10, two contact springs 20, two pressing plates 30, two contact knives 50, a mandrel 70, two pressure-bearing shafts 100 and a contact support 110;
  • the two contact springs 20 and the two pressing plates 30 are provided inside the contact mounting holes of the rotation shaft 10, one end of each of the two contact springs 20 is connected with the wall of the corresponding contact mounting hole, and the other end thereof is connected with the corresponding pressing plate of the two pressing plates 30;
  • two contact knives 50 are arranged side by side to drive one end of a movable contact point to pass through the corresponding contact mounting hole, and the mandrel 70 and the two pressure-bearing shafts 100 are provided on the other end of the contact knife 50;
  • the two contact knives 50 are embedded between the end portions of the contact support 110 and are fixed, and the mandrel 70 passes through the contact support 100 and the two contact knives 50 and are connected with the rotation shaft 10.
  • a second clamp spring 90 and a bearing 80 are provided at two ends of the mandrel 70, that are exposed outside the contact support 110, respectively in sequence in a sleeving manner, and the mandrel 70 is provided with a clamping groove 71 in a corresponding position of the second clamp spring, and a bearing groove matched with the bearing 80 is provided in a corresponding position inside the rotation shaft 10.
  • Each of the pressure-bearing shafts 100 is fixed with the corresponding contact knife 50 in a riveting manner.
  • Each pressure-bearing shaft 100 comprises a first column body 111 and a second column body 112, wherein a step surface 101 is formed at the junction between the second column body 112 and the first column body 111, and an area of the step surface 101 is larger than that of a cross section of the first column body 111; the first column bodies 111 of the two pressure-bearing shafts passes through the two contact knives 50 respectively and extend to the outside of the contact knives 50; the step surface 101 is in limiting contact with the side walls of the contact knives 50; the second column bodies 112 of the two pressure-bearing shafts 100 are provided between the two contact knives 50; the end surfaces 102 of the two second column bodies 112 are in contact location; a part, that extends to the outside of the contact knives 50, of the first column body 111, is matched with working surfaces 301 of the two pressing plates 30 respectively; the second column body 112 is matched with second working surfaces of the pressing plates 30; the first column body and the second column body jointly bear the thrust transferred by the pressing plates, such that
  • Each of the pressing plates 30 is of a U-shaped structure, and connecting holes 303 are provided in conjunctions between two side walls and a bottom wall of the U-shaped structure; the bottom wall at one open side of the U-shaped structure is connected with the corresponding contact spring 20, a working surface 301 and a second working surface 304 that are matched with the pressure-bearing shafts 100 are formed on the other side of the bottom wall; the thrust borne by the pressing plates 30 from the contact springs 20 and the counter-acting force borne by the pressing plates 30 from the pressure-bearing shafts 100 are balanced; and contact knife grooves 302 for receiving the contact knifes 50 to pass through and limiting the contact knives 50 are also provided in the corresponding positions of the bottom wall; a locating shaft 40 passes through the connecting holes 303 in two pressing plates 30 that are arranged side by side, in sequence to be connected and located.
  • a locating member 60 is also provided between the two contact knives 50. Two ends of the locating member 60 are connected with the two contact knives 50 respectively, and a locating block for limiting the distance between the two contact knives is provided in the middle of the locating member 60, wherein the length of the locating block is equal to the sum of the lengths of two second column bodies 113. Further, a pair of support bosses 51 is at least provided at corresponding positions of the two contact knives 50, and the end portions of the support bosses 51 of the two contact knives 50 are in contact location, such that the locating member 60 may be omitted to improve the assembly efficiency.
  • each pressure-bearing shaft 100 is a stepped shaft composed of a first column body 111 and a second column body 112, wherein a cross section of the second column body 112 is larger than that of the first column body 111, a step surface 101 is formed at the cross section of the conjunction between the second column body 112 and the first column body 111, and an end surface 102 is formed at the end portion of the second column body 112.
  • the first column bodies 111 and the second column bodies 112 are circular column bodies, wherein the diameter of each second column body 112 is larger than that of each first column body; the pressure-bearing shafts 100 may be formed by cutting machining; each pressure-bearing shaft may also be a stepped shaft integrally formed by carbon steel wires, with a step surface 101 being naturally formed, thereby achieving a simple and reliable structure.
  • a groove 103 is provided in the conjunction between the first column body 111 and the second column body 112; a first clamp spring (not shown) is provided inside the groove 103 in a sleeving manner; the area of a cross section of the first clamp spring is larger than that of a cross section of the first column body 111; the step surface 101 is formed at one side, connected with the first column body 111, of the first clamp spring.
  • the first column bodies 111 and the second column bodies 112 are circular column bodies, wherein the diameter of each second column body 112 is the same as that of each first column body; the limiting between the pressure-bearing shafts 100 and the contact knives 50 is realized by a first clamp ring when the pressure-bearing shafts 100 are mounted.
  • the contact knives 50 are made of a red copper material; two pairs of support bosses 51 are provided between the two contact knives 50, are formed by performing extrusion processing on a body material of the contact knives 50 and are located on the corresponding positions of the two contact knives 50, so as to ensure that the end surfaces of each pair of support bosses 51 after being assembled are matched (i.e., the end portions of each pair of support bosses 51 can be in contact location).
  • Each of the contact knives 50 is further provided with a pair of pressure-bearing holes 54 for riveting the pressure-bearing shafts 100 and a mandrel hole 53 in which the mandrel 70 is placed, wherein the aperture of each pressure-bearing hole 54 is matched with the diameter of the first column body 111 of each of the pressure-bearing shafts 100, i.
  • each pressure-bearing shaft 100 is a stepped shaft made of carbon steel wires, and extrudes and rivets the periphery of the pressure-bearing hole 53 after being inserted into the corresponding pressure-bearing hole 54, to achieve the effect of fixing the pressure-bearing shaft 100; of course, based on the design of the pressure-bearing shafts 100, it is also available that the pressure-bearing shafts 100 and the contact knives 50 are not riveted.
  • the mandrel hole 53 is provided above each pressure-bearing hole 54; at a position, close to the mandrel hole 53, of the end portion of each contact knife 50, a region, which is overlapped with the contact support 110, of the contact knife 50 is thinned to form a welding surface 55.
  • the support bosses 51 may be circular column bodies or square column bodies, or may be in other shapes.
  • the support bosses 51 are simple in machining, and the end portions of the two support bosses 51 are in a mutually butted-against state as long as the relative displacement between the two contact knives 50 is not large, so as to keep the distance between the two contact knives 50 unchanged, and therefore, the machining precision of the support bosses 51 does not need to reach a high level.
  • the structure between the two contact knives, between the two pressing plates and the two pressure-bearing shafts are identical; however, in the actual manufacturing process, the structures between the two contact knives, the two pressing plates and the two pressure-bearing shafts may also be not identical, for example, the two pressure-bearing shafts may adopt two embodiments of the present invention.

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  • Breakers (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (10)

  1. Eine Kontaktvorrichtung eines Stromkreisunterbrechers, aufweisend einen Rotationsschaft (10), zwei Drückplatten (30), die in Kontaktmontagelöchern des Rotationsschafts (10) bereitgestellt sind, und zwei Kontaktmesser (50), die nebeneinander angeordnet sind, wobei ein Ende jedes der Kontaktmesser (50), das mit einem bewegbaren Kontaktpunkt bereitgestellt ist, durch das korrespondierende Kontaktmontageloch passiert, und das andere Ende davon mit dem Rotationsschaft (10) verbunden ist, wobei an einem Enden der beiden Kontaktmesser (50), die mit dem Rotationsschaft (10) verbunden sind, zwei Druck-Lagerschäfte (100) bereitgestellt sind, wobei die Druck-Lagerschäfte (100) sich zu dem Äußeren der Kontaktmesser (50) erstrecken und mit Arbeitsflächen (301) der beiden Drückplatten (30) zusammenpassen,
    dadurch gekennzeichnet, dass
    jeder Druck-Lagerschaft (100) aufweist einen ersten Säulenkörper (111) und einen zweiten Säulenkörper (112), die fest mit einem Ende des ersten Säulenkörpers (111) verbunden ist, wobei eine Stufenfläche (101) an der Verbundstelle zwischen dem zweiten Säulenkörper (112) und dem ersten Säulenkörper (111) ausgebildet ist, und wobei eine Fläche der Stufenfläche (101) größer ist als jener eines Querschnitts des ersten Säulenkörpers (111), wobei die zweiten Säulenkörper (112) der beiden Druck-Lagerschäfte (100) zwischen den beiden Kontaktmessern (50) bereitgestellt sind, wobei die Endflächen (102) der beiden zweiten Säulenkörper (112) in Kontaktlage sind, wobei die ersten Säulenkörper (111) der beiden Druck-Lagerschäfte (100) durch die beiden Kontaktmesser (50) hindurchdringen respektive unter Begrenzen der Stufenfläche (101) .
  2. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 1, wobei eine zweite Arbeitsfläche (304), welche mit jedem zweiten Säulenkörper (112) zusammenpasst, ferner bereitgestellt ist an einer korrespondierenden Position von jeder der Drückplatten (30).
  3. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 1, wobei jeder Druck-Lagerschaft (100) ein Stufenschaft ist, der zusammengesetzt ist aus einem ersten Säulenkörper (111) und einem zweiten Säulenkörper (112), wobei ein Querschnitt des zweiten Säulenkörpers (112) größer ist als jener des ersten Säulenkörpers (111), und wobei der Querschnitt an der Verbindungsstelle zwischen dem zweiten Säulenkörper (112) und dem ersten Säulenkörper (111) als eine Stufenfläche (101) ausgebildet ist.
  4. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 1, wobei eine Nut (103) in der Verbindungstelle zwischen dem ersten Säulenkörper (111) und dem zweiten Säulenkörper (112) bereitgestellt ist, wobei eine erste Klemmfeder in der Nut (103) in einer Hülsen-Weise bereitgestellt ist, wobei die Fläche eines Querschnitts der ersten Klemmfeder größer ist als jene eines Querschnitts des ersten Säulenkörpers (111), wobei die Stufenfläche (101) an einer Seite der ersten Klemmfeder gebildet ist, die mit dem ersten Säulenkörper (111) verbunden ist.
  5. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 1, wobei ein Paar Haltevorsprünge (51) respektive zumindest an korrespondierenden Positionen der beiden Kontaktmesser (52) bereitgestellt ist, und wobei die Endabschnitte der Haltevorsprünge (51) der beiden Kontaktmesser (50) in Kontaktlage sind.
  6. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 5, wobei jeder der Haltevorsprünge (51) ein Kreis-Säulenkörper oder ein Rechteck-Säulenkörper ist.
  7. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 1, wobei jedes der Kontaktmesser (50) mit einem Druck-Lagerloch (54) bereitgestellt ist, das mit dem korrespondierenden Druck-Lagerschaft (100) zusammenpasst, wobei eine Öffnungsgröße des Druck-Lagerlochs (54) mit einem Durchmesser des ersten Säulenkörpers (111) zusammenpasst, und wobei jeder der Druck-Lagerschäfte (100) an dem korrespondierenden Kontaktmesser (50) in einer Niet-Weise befestigt ist, nachdem er in das korrespondierende Druck-Lagerloch (54) eingesetzt ist.
  8. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß irgendeinem der Ansprüche 1 bis 7, wobei die Kontaktvorrichtung ferner aufweist zwei Kontaktfedern (20), die im Innern der Kontaktmontagelöcher des Rotationsschafts (10) bereitgestellt sind, einen Dorn (70) und einen Kontakthalter (110), wobei ein Ende jeder der Kontaktfedern (20) mit der Lochwand des korrespondierenden Kontaktmontagelochs verbunden ist, und wobei respektive das andere Ende davon mit der korrespondierenden Drückplatte der beiden Drückplatten (30) verbunden ist, wobei ferner ein Dornloch (53) in einem Ende von jedem der beiden Kontaktmesser (50) bereitgestellt ist, welches mit dem Rotationsschaft (10) verbunden ist, wobei die beiden Kontaktmesser (50) zwischen den Endabschnitten des Kontakthalters (110) eingebettet sind und fixiert sind, wobei der Dorn (70) durch die Dornlöcher (53) hindurchgeht, den Kontakthalter (110) und die beiden Kontaktmesser (50) durchdringt und mit dem Rotationsschaft (10) verbunden ist.
  9. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 8, wobei eine zweite Klammerfeder (90) und ein Lager (80) respektive an beiden Enden des Dorns (70) bereitgestellt sind, die außerhalb des Kontakthalters (110) exponiert sind, in Sequenz in einer Hülsen-Weise, und wobei der Dorn (70) mit einer Klemmnut (71) bereitgestellt ist in einer korrespondierenden Position der zweiten Klemmfeder, und wobei eine Lagernut, die mit dem Lager (80) zusammenpasst, in einer korrespondierenden Position in dem Rotationsschaft (10) bereitgestellt ist.
  10. Die Kontaktvorrichtung des Stromkreisunterbrechers gemäß Anspruch 8, wobei jede der Drückplatten (30) eine U-förmige Struktur hat, und wobei Verbindungslöcher (303) in Verbindungsstellen zwischen zwei Seitenwänden und einer Bodenwand der U-förmigen Struktur bereitgestellt sind, wobei die Bodenwand an einer offenen Seite der U-förmigen Struktur mit der korrespondierenden Kontaktfeder (20) verbunden ist, wobei eine Arbeitsfläche (301), die mit dem ersten Säulenkörper (111) zusammenpasst, und eine zweite Arbeitsfläche (304), die mit dem zweiten Säulenkörper (112) zusammenpasst, auf der anderen Seite der Bodenwand ausgebildet sind, und wobei Kontaktmessernuten (302) zum Aufnehmen der Kontaktmesser (50), um hindurch zu passieren und um die Kontaktmesser (50) zu begrenzen (50), ebenfalls in korrespondierenden Positionen der Bodenwand bereitgestellt sind, wobei ein Positionierungsschaft (40) durch die Verbindungslöcher (303) in den beiden Drückplatten (30) hindurchgeht, welche nebeneinander angeordnet sind, in Sequenz, um verbunden und positioniert zu sein.
EP15842628.8A 2014-09-18 2015-01-28 Kontaktvorrichtung eines schalters Active EP3196907B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420541693.0U CN204117869U (zh) 2014-09-18 2014-09-18 断路器的触头装置
PCT/CN2015/071741 WO2016041314A1 (zh) 2014-09-18 2015-01-28 断路器的触头装置

Publications (3)

Publication Number Publication Date
EP3196907A1 EP3196907A1 (de) 2017-07-26
EP3196907A4 EP3196907A4 (de) 2018-05-30
EP3196907B1 true EP3196907B1 (de) 2019-05-22

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CN (1) CN204117869U (de)
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CN204117869U (zh) * 2014-09-18 2015-01-21 浙江正泰电器股份有限公司 断路器的触头装置
CN106653412A (zh) * 2016-12-30 2017-05-10 无锡新宏泰电器科技股份有限公司 一种断路器动触头夹持结构
CN108010815A (zh) * 2017-12-28 2018-05-08 高锦 一种用于小型断路器的接电板组件
EP4167262A4 (de) * 2020-06-16 2024-07-17 Zhejiang Chint Electrics Co Ltd Schutzschalter mit plastikgehäuse

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CN1040922C (zh) * 1994-02-08 1998-11-25 富士电机株式会社 断路器中的可动接触器装置
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SA517381121B1 (ar) 2020-09-03
TR201908679T4 (tr) 2019-07-22
EP3196907A4 (de) 2018-05-30
EP3196907A1 (de) 2017-07-26
WO2016041314A1 (zh) 2016-03-24
MY186751A (en) 2021-08-17
CN204117869U (zh) 2015-01-21

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