EP4117010B1 - Mini-schutzschalter - Google Patents

Mini-schutzschalter

Info

Publication number
EP4117010B1
EP4117010B1 EP21765252.8A EP21765252A EP4117010B1 EP 4117010 B1 EP4117010 B1 EP 4117010B1 EP 21765252 A EP21765252 A EP 21765252A EP 4117010 B1 EP4117010 B1 EP 4117010B1
Authority
EP
European Patent Office
Prior art keywords
partition plate
circuit breaker
moving contact
thermal tripping
tripping rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21765252.8A
Other languages
English (en)
French (fr)
Other versions
EP4117010A1 (de
EP4117010C0 (de
EP4117010A4 (de
Inventor
Zaiwei CHEN
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
Original Assignee
Zhejiang Chint Electrics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Chint Electrics Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Publication of EP4117010A1 publication Critical patent/EP4117010A1/de
Publication of EP4117010A4 publication Critical patent/EP4117010A4/de
Application granted granted Critical
Publication of EP4117010C0 publication Critical patent/EP4117010C0/de
Publication of EP4117010B1 publication Critical patent/EP4117010B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • 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
    • H01H71/0221—Majority of parts mounted on central frame or wall
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the present invention relates to the technical field of low-voltage electrical appliances, and more particularly to a miniature circuit breaker.
  • JPS 52 58465 U discloses a miniature 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 miniature circuit breaker with a simple structure and high reliability.
  • a miniature circuit breaker comprising a housing and a handle arranged on the housing, wherein an overload protection device and an operating mechanism connected to a moving contact are arranged in the housing;
  • the overload protection device comprises a temperature control assembly equipped with a bimetal sheet; an incoming wire connecting terminal connected to the moving contact is arranged on one side, close to the moving contact, inside the housing; a static contact matched with the moving contact is arranged on one side of the moving contact, and the temperature control assembly is arranged on the other side of the moving contact;
  • the overload protection device further comprises a temperature control protection device; when overloaded, the temperature control assembly drives the temperature control protection device arranged on the housing to trigger the circuit breaker to trip; and the temperature control protection device comprises a partition plate and a thermal tripping rod, wherein the thermal tripping rod can be rotated on the partition plate to trigger the circuit breaker to trip; the partition plate separates the moving contact and the thermal tripping rod in two different planes; the temperature control
  • the partition plate is provided with a first critical point, a second critical point and a limiting portion, wherein the first critical point and the second critical point are used for being in limiting fit with the thermal tripping rod; the middle part of the thermal tripping rod is rotatably mounted on the partition plate; one end of the thermal tripping rod is used as an unlocking end to pass through a gap between the first critical point and the second critical point and to cooperate with an operating mechanism; the other end of the thermal tripping rod is used as a driving end to cooperate with the movable end of the bimetal sheet; and the limiting portion is used for being in limiting fit with the bimetal sheet.
  • the partition plate is of a right-angled triangle as a whole; a mandrel for the thermal tripping rod to be rotatably mounted is arranged on the upper part of the partition plate; two protrusions are arranged on one side of the mandrel close to the operating mechanism as the first critical point and the second critical point, respectively, wherein the first critical point is located on one side close to the temperature control assembly, and the second critical point is located on one side away from the temperature control assembly; a longitudinal rib is arranged on the partition plate, wherein a groove serving as a limiting portion is formed in the middle of the rib; and the movable end of the bimetal sheet passes through the groove and used for cooperating with the driving end of the thermal tripping rod.
  • the current-carrying conductor comprises a current-carrying plate, a first flexible conductor and a second flexible conductor; one end of the current-carrying plate is connected to the incoming wire connecting terminal, and the other end of the current-carrying plate is connected to the second flexible conductor; the first flexible conductor is connected to the moving contact; the first flexible conductor is connected to the second flexible conductor; and one end of the first flexible conductor is connected to the bimetal sheet, and the other end of the first flexible conductor is connected to the moving contact.
  • the middle part of the thermal tripping rod is circular and is used for rotational connection with the partition plate; one end of the thermal tripping rod is used as the driving end to cooperate with the movable end of the bimetal sheet; the end part of the driving end is bluntly rounded; the other end of the thermal tripping rod is used as the unlocking end, and the end part of the other end is bent to one side for triggering the circuit breaker to trip.
  • the partition plate is of a right-angled triangle as a whole;
  • the thermal tripping rod is rotatably mounted on the upper part of the partition plate; one end of the thermal tripping rod is used as the unlocking end to extend out of the partition plate and to cooperate with the operating mechanism, and the other end of the thermal tripping rod is used as the driving end to be located in the middle of the partition plate;
  • the temperature control assembly comprises a bimetal sheet, a current-carrying conductor and a support, wherein the support is used to fix the current-carrying conductor and the bimetal sheet between the incoming wire connecting terminal and the moving contact; the movable end of the bimetal sheet extends to the driving end on the partition plate for driving the driving end ofthe thermal tripping rod;
  • the support is obliquely arranged along a hypotenuse edge of the partition plate and used for connection with the adjusting member on one side of the housing; and the adjusting member is inclined toward the hypotenuse of the partition plate.
  • the unlocking portion is located at the edge of one side of the lock catch close to the incoming wire connecting terminal; the unlocking portion is of a protruding structure that protrudes from the edge of the lock catch; an arc-striking plate for introducing an electric arc into an arc-extinguishing chamber is also arranged on the current-carrying conductor; and the arc-striking plate and the moving contact are located on the same plane.
  • the housing is provided with the arc extinguishing chamber inside, wherein the arc extinguishing chamber is located on one side of the moving contact away from the temperature control assembly, and is located below the static contact; and the partition plate is located on one side of the arc extinguishing chamber close to the moving contact.
  • the miniature circuit breaker of the present invention does not need to perform current shunting on a temperature control assembly, only by additionally providing the partition plate in the housing and arranging the moving contact and the thermal tripping rod in two different planes respectively, the bimetal sheet that is originally in the same plane as the moving contact is also in two planes with the moving contact under the separation of the partition plate.
  • the temperature control assembly is then mounted in a space close to the moving contact, which shortens the length of the current-carrying conductor of the temperature control assembly, reduces the internal resistance and reduces heat generation, thereby avoiding a damage to parts caused by the overheating of the temperature control assembly.
  • the circuit breaker will not be interfered by the thermal tripping rod during normal operation under the restriction of the first critical point and the second critical point, wherein the limiting portion is used to limit a movement range of the bimetal sheet to avoid interfering the normal operation of the circuit breaker.
  • the specific implementation of the miniature circuit breaker of the present invention will be further described below with reference to the embodiments given in FIGS. 1 to 7 .
  • the miniature circuit breaker of the present invention is not limited to the description of the following embodiments.
  • a miniature circuit breaker comprising a housing 1 and a handle 2 arranged on the housing 1, wherein an overload protection device and an operating mechanism connected to a moving contact 8 are arranged in the housing 1;
  • the overload protection device comprises a temperature control assembly equipped with a bimetal sheet 61; an incoming wire connecting terminal connected to the moving contact 8 is arranged on one side, close to the moving contact 8, inside the housing 1; a static contact matched with the moving contact 8 is arranged on one side of the moving contact 8, and the temperature control assembly is arranged on the other side of the moving contact 8;
  • the overload protection device further comprises a temperature control protection device; when overloaded, the temperature control assembly drives the temperature control protection device arranged on the housing 1 to trigger the circuit breaker to trip; and
  • the temperature control protection device comprises a partition plate 41 and a thermal tripping rod 42, wherein the thermal tripping rod 42 can be rotated on the partition plate 41 to trigger the circuit breaker to trip; the partition plate 41 separates the moving contact 8 and the thermal tripping rod 42 in
  • the miniature circuit breaker of the present invention does not need to perform current shunting on a temperature control assembly, and the operating mechanism, the overload protection device, and the moving contact 8 are all located in the same cavity of the housing 1, by additionally providing the partition plate 41 in the housing 1 and arranging the moving contact 8 and the thermal tripping rod 42 in two different planes respectively, the bimetal sheet 61 that is originally in the same plane as the moving contact 8 is also in two planes with the moving contact 8 under the separation of the partition plate 41.
  • the temperature control assembly is then mounted in a space close to the moving contact 8, which shortens the length of the current-carrying conductor of the temperature control assembly, reduces the internal resistance and reduces heat generation, thereby avoiding a damage to parts caused by the overheating of the temperature control assembly.
  • a miniature circuit breaker includes a housing 1 and a handle 2 arranged on the housing 1, wherein an overload protection device and an operating mechanism connected to a moving contact 8 are arranged in the housing 1;
  • the overload protection device includes a temperature control assembly equipped with a bimetal sheet 61, and a temperature control protection device;
  • the operating mechanism includes a contact support, and a jump buckle 31 and a lock catch 32 which are pivotally arranged on the contact support respectively; the contact support is connected to the moving contact 8; the jump buckle 31 and one end of the lock catch 32 are lapped and connected to each other; a connecting rod 33 for connection with the handle 2 is arranged at the other end of the jump buckle 31; the handle 2 and the operating mechanism are located at the upper part of the housing 1; a static contact that cooperates with the moving contact 8 is arranged on one side of the moving contact 8; the static contact is arranged on a static contact plate 9; the temperature control assembly is arranged on the other side of the moving contact 8; an overload protection device and an operating mechanism connected to a
  • the bimetal sheet 61 When the circuit breaker is overloaded, the bimetal sheet 61 is heated and bent, such that a movable end 611 of the bimetal sheet 61 drives the thermal tripping rod 42 to rotate to trigger the operating mechanism to trip and cut off; and the movable end 611 of the bimetal sheet 61 is located above the partition plate 41.
  • the tripping rod cooperates with the lock catch 32 of the operating mechanism, the jump buckle 31 and the lock catch 32 of the operating mechanism are lapped and connected to each other, and the thermal tripping rod 42 rotates to drive the lock catch 32 to rotate, such that the lock catch 32 releases the lapped connection from the jump buckle 31, thereby tripping and cutting off the circuit breaker.
  • the significance of adding the partition plate 41 in the housing 1 is to fully separate a space near the moving contact 8 and increase its space utilization rate, such that the temperature control assembly is mounted on the space near the moving contact 8.
  • the temperature control assembly can also be mounted near the moving contact 8 by increasing a size of the housing 1 to increase the space between the moving contact 8 and the incoming wire connecting terminal, but this is not conducive to the miniaturized design of the circuit breaker.
  • said incoming wire connecting terminal and outgoing wire connecting terminal can be adjusted as the outgoing wire connecting terminal and the incoming wire connecting terminal according to the change in the user's wiring mode.
  • the temperature control assembly specifically includes a bimetal sheet 61, a current-carrying conductor and a support 63, wherein the support 63 is used to fix the current-carrying conductor and the bimetal sheet 61 between the incoming wire connecting terminal and the moving contact 8; one end of the support 63 is connected to a fixed end of the bimetal sheet 61, and the other end of the support 63 forms a bifurcated structure with the movable end 611 of the bimetal sheet 61, the other end of the support 63 is used for connection with an adjusting member 7 arranged on one side of the housing 1, and preferably, the support 63 is obliquely arranged along a hypotenuse edge of the partition plate 41 and used for connection with the adjusting member 7 on one side of the housing 1; and the adjusting member 7 is obliquely arranged toward the hypotenuse of the partition plate 41, which further shortens the length of the support 63.
  • the current-carrying conductor includes a current-carrying plate 623, a first flexible conductor 621 and a second flexible conductor 622; one end of the current-carrying plate 623 is connected to the incoming wire connecting terminal, and the other end of the current-carrying plate 623 is connected to the second flexible conductor 622; the first flexible conductor 621 is connected to the moving contact 8; and one end of the first flexible conductor 621 is connected to the bimetal sheet 61, and the other end of the first flexible conductor 621 is connected to the moving contact 8.
  • the first flexible conductor 621 and the second flexible conductor 622 can be combined into one flexible conductor.
  • This flexible conductor only needs to connect the current-carrying plate 623, the movable contact 8 and the bimetal sheet 61 together, and its specific form is not limited.
  • the movable end 611 of the bimetal sheet 61 extends to the driving end 422 on the partition plate 41 for driving the thermal tripping rod 42.
  • an arc-striking plate 64 for introducing an electric arc into the arc extinguishing chamber is connected to the current-carrying conductor, and the arc-striking plate 64 is in the same plane as the moving contact 8.
  • the adjusting member 7 is a screw.
  • the partition plate 41 is specifically shown in FIG. 6 .
  • the partition plate 41 is provided with a first critical point 411, a second critical point 412 and a limiting portion 413, wherein the first critical point 411 and the second critical point 412 are used for being in limiting fit with the thermal tripping rod 42. Under the limiting action of the first critical point 411 and the second critical point 412, the thermal tripping rodwill not interfere with the operating mechanism when the circuit breaker works normally.
  • the partition plate 41 is of a right-angled triangle as a whole; a mandrel for the thermal tripping rod 42 to be rotatably mounted is arranged on the upper part of the partition plate 41; two protrusions are arranged on one side of the mandrel close to the operating mechanism as the first critical point 411 and the second critical point 412, respectively, wherein the first critical point 411 is located on one side close to the temperature control assembly, and the second critical point 412 is located on one side away from the temperature control assembly.
  • the thermal tripping rod 42 When the circuit breaker is not overloaded, the thermal tripping rod 42 is located on one side close to the first critical point 411; and when the circuit breaker is overloaded, the thermal tripping rod 42 is driven by the bimetal sheet 61 to approach the second critical point 412, and meanwhile, the unlocking end 421 of the thermal tripping rod 42 trips the operating mechanism, thereby tripping and cutting off the circuit breaker.
  • a longitudinal rib is arranged on the partition plate 41, wherein a groove serving as a limiting portion 413 is formed in the middle of the rib; and the movable end 611 of the bimetal sheet 61 passes through the groove and is used for cooperating with the driving end 422 of the thermal tripping rod 42.
  • a comb-shaped groove which is used for cooperating with an arc-extinguishing grate of the arc-extinguishing chamber to adjust an air pressure of the arc-extinguishing chamber is formed in a right-angle side on one side of the partition plate 41 close to the arc-extinguishing chamber.
  • a circular groove that is mounted in cooperation with the static contact is formed above the comb-shaped groove.
  • the arc-extinguishing chamber is located on one side of the moving contact 8 away from the temperature control assembly, and is located below the static contact.
  • the moving contact 8 swings so that the moving contact at one end is in contact with or separated from a static contact point on the static contact.
  • the static contact point extends to an arc entry side of the arc extinguishing chamber.
  • the partition plate 41 is located on one side of the arc-extinguishing chamber close to the moving contact 8, and corresponds to a swing space of the moving contact 8.
  • the thermal tripping rod 42 mounted on the partition plate 41 is preferably as shown in FIGS. 2-4 .
  • the thermal tripping rod 42 is a rod body with one thick end and one thin end.
  • the middle part of the thermal tripping rod 42 is circular and is used for rotational connection with the partition plate 41; one thin end of the thermal tripping rod 42 is used as the driving end 422 to cooperate with the movable end 611 of the bimetal sheet 61; the end part of the driving end 422 is bluntly rounded; and the thick end of the thermal tripping rod 42 is used as the unlocking end 421, and the end part of the thick end is bent to one side for triggering the circuit breaker to trip.
  • an unlocking portion 321 which cooperates with the unlocking end 421 of the thermal tripping rod 42 is arranged at one end of the lock catch 32 of the operating mechanism.
  • the unlocking portion 321 is located on an edge of one side of the lock catch 32 close to the incoming wire connecting terminal, and the unlocking portion 321 is of a protruding structure that protrudes from the edge of the lock catch 32.
  • the unlocking end 421 of the thermal tripping rod 42 is located on the side opposite to the unlocking portion 321.

Landscapes

  • Breakers (AREA)
  • Cookers (AREA)
  • Electronic Switches (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (10)

  1. Miniatur-Stromkreisunterbrecher, mit einem Gehäuse (1) und einem an dem Gehäuse (1) angeordneten Handgriff (2), wobei in dem Gehäuse (1) eine Überlastschutzeinrichtung und ein mit einem bewegbaren Kontakt (8) verbundener Betätigungsmechanismus angeordnet sind; wobei die Überlastschutzeinrichtung eine Temperatursteuereinrichtung aufweist, die mit einem Bimetallplättchen (61) ausgestattet ist; wobei ein mit dem bewegbaren Kontakt (8) verbundener Eingangsleitungsverbindungsanschluss auf einer dem bewegbaren Kontakt (8) nahen Seite innerhalb des Gehäuses (1) angeordnet ist; wobei ein mit dem bewegbaren Kontakt (8) zusammenpassender statischer Kontakt auf einer Seite des bewegbaren Kontakts (8) angeordnet ist und wobei die Temperatursteuereinrichtung auf der anderen Seite des bewegbaren Kontakts (8) angeordnet ist;
    wobei die Überlastschutzeinrichtung ferner eine Temperatursteuerungsschutzvorrichtung aufweist; wobei bei Überlastung die Temperatursteuereinrichtung die am Gehäuse (1) angeordnete Temperatursteuerungsschutzvorrichtung antreibt, um den Stromkreisunterbrecher auszulösen, um zu schalten; und
    wobei die Temperatursteuerungsschutzvorrichtung eine Trennplatte (41) und eine Thermisches-Auslösen-Stange (42) aufweist, die an der Trennplatte (41) gedreht werden kann, um den Stromkreisunterbrecher auszulösen, um zu schalten; wobei die Temperatursteuereinrichtung (61) ein Bimetallplättchen (61) und einen stromführenden Leiter aufweist; wobei ein festes Ende des Bimetallplättchens (61) an dem Gehäuse (1) auf einer dem bewegbaren Kontakt (8) nahen Seite angeordnet ist; wobei das Bimetallplättchen (61) über den stromführenden Leiter mit dem Eingangsleitungsverbindungsanschluss verbunden ist; und
    wobei, wenn der Stromkreisunterbrecher überlastet ist, das Bimetallplättchen (61) erwärmt und gebogen wird, so dass ein bewegbares Ende (611) des Bimetallplättchens (61) die Thermisches-Auslösen-Stange (42) antreibt, um zu drehen, um den Stromkreisunterbrecher auszulösen, um zu schalten und zu unterbrechen;
    dadurch gekennzeichnet, dass die Trennplatte (41) den bewegbaren Kontakt (8) und die Thermisches-Auslösen-Stange (42) in zwei verschiedene Ebenen trennt.
  2. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei die Temperatursteuereinrichtung ferner einen Halter (63) aufweist, an dem das Bimetallplättchen (61) und der stromführende Leiter fest angeordnet sind; wobei ein Ende des Halters (63) mit einem festen Ende des Bimetallplättchens (61) verbunden ist und das andere Ende des Halters (63) mit dem bewegbaren Ende (611) des Bimetallplättchens (61) eine gegabelte Struktur bildet; und wobei das andere Ende des Halters (63) zur Verbindung mit einem Einstellelement (7) dient.
  3. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei die Trennplatte (41) mit einem ersten kritischen Punkt (411), einem zweiten kritischen Punkt (412) und einem Begrenzungsabschnitt (413) versehen ist, wobei der erste kritische Punkt (411) und der zweite kritische Punkt (412) dazu dienen, um in Begrenzungszusammenpassung mit der Thermisches-Auslösen-Stange (42) zu stehen; wobei der mittlere Teil der Thermisches-Auslösen-Stange (42) drehbar an der Trennplatte (41) angebracht ist; wobei ein Ende der Thermisches-Auslösen-Stange (42) als Entriegelungsende (421) dient, um durch einen Spalt zwischen dem ersten kritischen Punkt (411) und dem zweiten kritischen Punkt (412) hindurchzugehen und um mit einem Betätigungsmechanismus zusammenzuwirken; wobei das andere Ende der Thermisches-Auslösen-Stange (42) als ein Antriebsende (422) dient, um mit dem bewegbaren Ende (611) des Bimetallplättchens (61) zusammenzuwirken; und wobei der Begrenzungsabschnitt (413) dazu dient, um in Begrenzungszusammenpassung mit dem Bimetallplättchen (61) zu stehen.
  4. Miniatur-Stromkreisunterbrecher gemäß Anspruch 3, wobei ein Dorn für die drehbare Anbringung der Thermisches-Auslösen-Stange (42) am oberen Teil der Trennplatte (41) angeordnet ist; wobei an einer zu dem Betätigungsmechanismus nahen Seite des Dorns zwei Vorsprünge zugeordnet als der erste kritische Punkt (411) und der zweite kritische Punkt (412) angeordnet sind, wobei der erste kritische Punkt (411) auf einer zu der Temperatursteuereinrichtung nahen Seite angeordnet ist und der zweite kritische Punkt (412) auf einer von der Temperatursteuereinrichtung entfernten Seite angeordnet ist; wobei eine Längs-Rippe an der Trennplatte (41) angeordnet ist, wobei in der Mitte der Rippe eine als ein Begrenzungsabschnitt (413) dienende Nut ausgebildet ist; und wobei das bewegbare Ende (611) des Bimetallplättchens (61) durch die Nut hindurchgeht und zum Zusammenwirken mit dem Antriebsende (422) der Thermisches-Auslösen-Stange (42) dient.
  5. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei der stromführende Leiter eine stromführende Platte (623), einen ersten flexiblen Leiter (621) und einen zweiten flexiblen Leiter (622) aufweist; wobei ein Ende der stromführenden Platte (623) mit dem Eingangsleitungsverbindungsanschluss verbunden ist und das andere Ende der stromführenden Platte (623) mit dem zweiten flexiblen Leiter (622) verbunden ist; wobei der erste flexible Leiter (621) mit dem bewegbaren Kontakt (8) verbunden ist; wobei der erste flexible Leiter (621) mit dem zweiten flexiblen Leiter (622) verbunden ist; und wobei ein Ende des ersten flexiblen Leiters (621) mit dem Bimetallplättchen (61) verbunden ist und das andere Ende des ersten flexiblen Leiters (621) mit dem bewegbaren Kontakt (8) verbunden ist.
  6. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei der mittlere Teil der Thermisches-Auslösen-Stange (42) kreisförmig ist und zur Drehverbindung mit der Trennplatte (41) dient; wobei ein Ende der Thermisches-Auslösen-Stange (42) als das Antriebsende (422) dient, um mit dem bewegbaren Ende (611) des Bimetallplättchens (61) zusammenzuwirken; wobei der Endabschnitt des Antriebsendes (422) stumpf abgerundet ist; wobei das andere Ende der Thermisches-Auslösen-Stange (42) als das Entriegelungsende (421) dient und der Endabschnitt des anderen Endes zu einer Seite gebogen ist zum Auslösen des Stromkreisunterbrechers, um zu schalten.
  7. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei die Trennplatte (41) insgesamt ein rechtwinkliges Dreieck bildet; wobei die Thermisches-Auslösen-Stange (42) drehbar am oberen Teil der Trennplatte (41) angebracht ist; wobei ein Ende der Thermisches-Auslösen-Stange (42) als das Entriegelungsende (421) dient, um aus der Trennplatte (41) hervorzustehen und um mit dem Betätigungsmechanismus zusammenzuwirken, und wobei das andere Ende der Thermisches-Auslösen-Stange (42) als das Antriebsende (422) dient, um in der Mitte der Trennplatte (41) angeordnet zu sein; wobei die Temperatursteuereinrichtung ein Bimetallplättchen (61), einen stromführenden Leiter und einen Halter (63) aufweist, wobei der Halter (63) dazu dient, um den stromführenden Leiter und das Bimetallplättchen (61) zwischen dem Eingangsleitungsverbindungsanschluss und dem bewegbaren Kontakt (8) zu befestigen; wobei sich das bewegbare Ende (611) des Bimetallplättchens (61) zum Antriebsende (422) an der Trennplatte (41) erstreckt, um das Antriebsende (422) der Thermisches-Auslösen-Stange (42) anzutreiben; wobei der Halter (63) schräg entlang einem Hypotenuse-Rand der Trennplatte (41) angeordnet ist und zur Verbindung mit dem Einstellelement (7) auf einer Seite des Gehäuses (1) dient; und wobei das Einstellelement (7) zur Hypotenuse der Trennplatte (41) hin geneigt ist.
  8. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei der Betätigungsmechanismus einen Kontaktträger und einen Sprungschnappriegel (31) und eine Verriegelungsklinke (32) aufweist, die jeweils schwenkbar an dem Kontaktträger angeordnet sind; wobei der Kontaktträger mit dem bewegbaren Kontakt (8) verbunden ist; wobei der Sprungschnappriegel (31) und ein Ende der Verriegelungsklinke (32) überlappt und miteinander verbunden sind; wobei eine Verbindungsstange (33) zur Verbindung mit dem Handgriff (2) am anderen Ende des Sprungschnappriegels (31) angeordnet ist; und wobei ein Entriegelungsabschnitt (321), der mit der Thermisches-Auslösen-Stange (42) zusammenwirkt, am anderen Ende der Verriegelungsklinke (32) angeordnet ist.
  9. Miniatur-Stromkreisunterbrecher gemäß Anspruch 8, wobei der Entriegelungsabschnitt (321) am Rand einer dem Eingangsleitungsverbindungsanschluss nahen Seite der Verriegelungsklinke (32) angeordnet ist; wobei der Entriegelungsabschnitt (321) von einer vorstehenden Struktur gebildet ist, die von dem Rand der Verriegelungsklinke (32) aus vorsteht; wobei eine Lichtbogenauslöseplatte (64) zum Einleiten eines elektrischen Lichtbogens in eine Lichtbogenauslöschkammer ebenfalls an dem stromführenden Leiter angeordnet ist; und wobei die Lichtbogenauslöseplatte (64) und der bewegbare Kontakt (8) in derselben Ebene angeordnet sind.
  10. Miniatur-Stromkreisunterbrecher gemäß Anspruch 1, wobei das Gehäuse (1) mit der Lichtbogenauslöschkammer darin bereitgestellt ist, wobei die Lichtbogenauslöschkammer auf einer von der Temperatursteuereinrichtung entfernten Seite des bewegbaren Kontakts (8) angeordnet ist und unterhalb des statischen Kontakts angeordnet ist; und wobei die Trennplatte (41) auf einer dem bewegbaren Kontakt (8) nahen Seite der Lichtbogenauslöschkammer angeordnet ist.
EP21765252.8A 2020-03-06 2021-02-12 Mini-schutzschalter Active EP4117010B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010152847.7A CN113363120B (zh) 2020-03-06 2020-03-06 小型断路器
PCT/CN2021/076633 WO2021175113A1 (zh) 2020-03-06 2021-02-12 小型断路器

Publications (4)

Publication Number Publication Date
EP4117010A1 EP4117010A1 (de) 2023-01-11
EP4117010A4 EP4117010A4 (de) 2024-04-10
EP4117010C0 EP4117010C0 (de) 2025-10-01
EP4117010B1 true EP4117010B1 (de) 2025-10-01

Family

ID=77524130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21765252.8A Active EP4117010B1 (de) 2020-03-06 2021-02-12 Mini-schutzschalter

Country Status (5)

Country Link
EP (1) EP4117010B1 (de)
CN (1) CN113363120B (de)
AU (1) AU2021229961B2 (de)
WO (1) WO2021175113A1 (de)
ZA (1) ZA202208519B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119170460B (zh) * 2024-11-22 2025-04-01 瑞睿电气(浙江)有限公司 一种具有可调型过电流保护结构的油浸式断路器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258465U (de) * 1975-10-24 1977-04-27
US4419649A (en) * 1981-11-04 1983-12-06 Westinghouse Electric Corp. Circuit breaker for use on AC and DC circuits
FR2674369B1 (fr) * 1991-03-20 1996-09-20 Merlin Gerin Disjoncteur electrique de phase et neutre a encombrement reduit.
IT1318215B1 (it) * 2000-07-21 2003-07-28 Gewiss Spa Interruttore elettrico magnetotermico
CN201015109Y (zh) * 2007-02-15 2008-01-30 黄华道 小型断路器
CN201584387U (zh) * 2009-08-06 2010-09-15 浙江正泰电器股份有限公司 一种相线加中线式剩余电流动作断路器
WO2012045209A1 (zh) * 2010-10-09 2012-04-12 Fang Huapeng 一种小型断路器
KR20150118460A (ko) * 2014-04-14 2015-10-22 엘에스산전 주식회사 가정용 회로차단기
CN104134588B (zh) * 2014-07-17 2016-03-02 正泰集团股份有限公司 一种多极小型断路器的操作装置
CN105826143B (zh) * 2016-05-31 2019-02-15 乐清市也为电气有限公司 一种小型化断路器
CN106783437B (zh) * 2017-01-20 2018-09-07 温州市新蓝天电器有限公司 一种断路器
CN107993897B (zh) * 2017-12-12 2024-08-06 上海电科电器科技有限公司 漏电保护断路器
CN107946153A (zh) * 2018-01-04 2018-04-20 常安集团有限公司 漏电断路器
CN209487333U (zh) * 2018-10-26 2019-10-11 上海诺雅克电气有限公司 双断点断路器
CN109411303A (zh) * 2018-11-19 2019-03-01 杭州乾龙电器有限公司 一种带漏电保护的断路器
CN109727826B (zh) * 2018-12-28 2024-08-13 浙江正泰电器股份有限公司 小型断路器
CN209981142U (zh) * 2019-02-15 2020-01-21 浙江正泰电器股份有限公司 断路器
CN211828666U (zh) * 2020-03-06 2020-10-30 浙江正泰电器股份有限公司 小型断路器

Also Published As

Publication number Publication date
CN113363120A (zh) 2021-09-07
EP4117010A1 (de) 2023-01-11
EP4117010C0 (de) 2025-10-01
AU2021229961A1 (en) 2022-08-25
WO2021175113A1 (zh) 2021-09-10
CN113363120B (zh) 2025-09-02
AU2021229961B2 (en) 2023-08-17
EP4117010A4 (de) 2024-04-10
ZA202208519B (en) 2023-03-29

Similar Documents

Publication Publication Date Title
WO2021093874A1 (zh) 插入式断路器
CN110265272B (zh) 一种小型断路器操作机构及小型断路器
CN211828666U (zh) 小型断路器
CN108281329B (zh) 一种电气终端使用的小型断路器
CN101170034A (zh) 小型断路器
CA2364989A1 (en) Circuit breaker with bypass conductor commutating current out of the bimetal during short circuit interruption and method of commutating current out of bimetal
EP4117010B1 (de) Mini-schutzschalter
CN109659190B (zh) 一种内置隔离的真空灭弧室装置及真空断路器
US12504474B2 (en) Test button loop device and circuit breaker
CN112863950B (zh) 电弧故障断路器
CN203631449U (zh) 微型断路器的操作机构
CN103646828A (zh) 微型断路器的操作机构及其工作过程
CN110265273A (zh) 一种超高短路分断能力的小型断路器
TW556240B (en) Air circuit breaker
CN222749417U (zh) 一种小型断路器
CN209880525U (zh) 一种超高短路分断能力的小型断路器
CN109712842B (zh) 一种内置隔离的真空灭弧室组合及真空断路器
CN220627721U (zh) 一种导电回路结构及断路器
CN109243936B (zh) 一种多回路断路器
CN218160243U (zh) 接触系统及断路器
CN212783283U (zh) 一种紧凑型重合闸断路器
CN209418418U (zh) 一种内置隔离的真空灭弧室装置及真空断路器
CN109786172B (zh) 一种内置隔离的真空灭弧室部件及真空断路器
CN209298052U (zh) 一种多回路断路器
KR102058794B1 (ko) 배선용 차단기의 한류 트립 구조

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220905

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20240312

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 71/52 20060101ALI20240305BHEP

Ipc: H01H 71/02 20060101ALI20240305BHEP

Ipc: H01H 71/16 20060101AFI20240305BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 71/16 20060101AFI20250606BHEP

Ipc: H01H 71/02 20060101ALI20250606BHEP

Ipc: H01H 71/52 20060101ALI20250606BHEP

INTG Intention to grant announced

Effective date: 20250618

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Ref country code: CH

Ref legal event code: F10

Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021039602

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

U01 Request for unitary effect filed

Effective date: 20251024

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI

Effective date: 20251030

U20 Renewal fee for the european patent with unitary effect paid

Year of fee payment: 6

Effective date: 20260127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20260130

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251001