EP3531436A1 - Appareil anti-coincement de poignée de stockage d'énergie de disjoncteur universel - Google Patents

Appareil anti-coincement de poignée de stockage d'énergie de disjoncteur universel Download PDF

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Publication number
EP3531436A1
EP3531436A1 EP16919247.3A EP16919247A EP3531436A1 EP 3531436 A1 EP3531436 A1 EP 3531436A1 EP 16919247 A EP16919247 A EP 16919247A EP 3531436 A1 EP3531436 A1 EP 3531436A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
energy storage
latch
ratchet
storage handle
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.)
Granted
Application number
EP16919247.3A
Other languages
German (de)
English (en)
Other versions
EP3531436A4 (fr
EP3531436B1 (fr
Inventor
Hongjian LEI
Keming Wang
Yingjie Yang
Xinhao Chen
Li Jiang
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 EP3531436A1 publication Critical patent/EP3531436A1/fr
Publication of EP3531436A4 publication Critical patent/EP3531436A4/fr
Application granted granted Critical
Publication of EP3531436B1 publication Critical patent/EP3531436B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031—Means for locking the spring in a charged state
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet

Definitions

  • the present invention relates to the field of low-voltage apparatuses, in particular to a universal circuit breaker.
  • a universal circuit breaker realizes switching-in and switching-off of a product through an operating mechanism.
  • an energy storage handle is rotated by an external force.
  • a latch on the energy storage handle and a ratchet on the operating mechanism drive a V-shaped shaft to rotate, such that an energy storage spring of the operating mechanism is compressed to complete manual energy storage.
  • the ratchet returns to an initial position. In the initial position, a torque is not transferred between the latch on the energy storage handle and the ratchet on the operating mechanism, and the energy storage handle needs to be rotated by a certain angle to buckle the latch with the ratchet to transfer the torque.
  • the ratchet rotates excessively due to machining error and fitting error of the components, so that the ratchet is in contact with the buckled surface of the latch on the energy storage handle. In this case, it is unnecessary to rotate the energy storage handle by a certain angle to start energy storage. Since a gap between the energy storage handle in an initial state and a mask is very small, there is no enough space to move the energy storage handle, and therefore, it is difficult to complete the energy storage operation.
  • the universal circuit breaker drives the V-shaped shaft of the operating mechanism by an electromotor to realize electric energy storage.
  • the electric energy storage process achieves energy storage of the operating mechanism in such a manner: the electromotor is electrified to rotate, the electromotor reduces a rotating speed by gear transmission to the last gear (an aluminum disk), and a blind hole (or a through hole) in the aluminum disk cooperates with the V-shaped shaft of the operating mechanism to transfer the torque to the operating mechanism.
  • a blind hole (or a through hole) having the same cross section as the V-shaped shaft of the operating mechanism is machined in the aluminum disk, and the torque is transferred through cooperating the blind hole (or through hole) with the V-shaped shaft.
  • the aluminum disk is an integral part made of aluminum, and is in clearance fit with the V-shaped shaft due to product assembly requirements. During the transmission process, the aluminum disk is in line contact with the V-shaped shaft, and the blind hole (or the through hole) of the aluminum disk of the electromotor is worn out greatly during the electric energy storage process, and is thus short in life.
  • a main circuit of the universal circuit breaker is divided into four phases of N/A/B/C or three phases of A/B/C.
  • the main circuit of each phase consists of two parts: a static contact and a moving contact.
  • a static contact When the circuit breaker is switched on, a large rotating shaft of the operating mechanism rotates, and the moving contact is driven by a connecting rod to rotate by a certain angle along the rotating center, and then contacts the static contact, and the main circuit is turned on.
  • a contact spring of the moving contact continues to be compressed after the moving contact is in point contact with the static contact, thereby forming an overtravel and increasing the final pressure of the contacts to meet the performance requirements of the product.
  • the overtravel of the remaining phase away from a B phase will be worse than that of the B phase, accompanied with the risks of insufficient overtravel and insufficient final pressure of the moving contact.
  • An objective of the present invention is to overcome the defects of the prior art and to provide a universal circuit breaker which has stable and stable performances and a simple and compact structure, and can achieve good user experiences.
  • an anti-jamming device for an energy storage handle of a universal circuit breaker comprises a circuit breaker body 1, and an operating mechanism 2 mounted on one side of the circuit breaker body 1; the energy storage handle 3 is mounted on the outside wall of one side of the operating mechanism 2; the energy storage handle 3 is rotated to manually store energy for the operating mechanism 2; the operating mechanism 2 comprises a V-shaped rotating shaft 4, wherein one end of the V-shaped rotating shaft 4 extends out of one sidewall of the operating mechanism 2, and the other end of the V-shaped rotating shaft 4 is sleeved with a ratchet 5 which is in linkage with the energy storage handle 3; a latch 6 which is in linkage with the ratchet 5 is arranged on one side, facing the ratchet 5, of the energy storage handle 3; the energy storage handle 3 is rotated to drive the ratchet 5 to rotate through the latch 6; the anti-jamming structure which prevents the latch 6 and the ratchet 5 from
  • the anti-jamming plate 8 is convexly provided with a flange 801 which is used for separating the ratchet 5 from the latch 6; when the operating mechanism releases energy, the latch 6 is laid on the flange 801 to prevent the latch 6 and the ratchet 5 from being jammed.
  • the flange 801 is in a shape of a one-tenth arc; two ends of the flange 801 are provided with slopes 805 which are inclined downwards.
  • the anti-jamming plate 8 is sheathed on the V-shaped rotating shaft 4 and located below the ratchet 5.
  • the anti-jamming plate 8 comprises an annular plate 81 and a strip-shaped extension plate 82 extending toward one side of the annular plate 81; a circular mounting hole 802 is formed in the middle of the annular plate 81; the anti-jamming plate 8 is sheathed on the V-shaped rotating shaft 4 through the circular mounting hole 802; the end part of the extension plate 82 is provided with a screw fixing hole 803 for fixing the anti-jamming plate 8; the anti-jamming plate 8 is fixed to one sidewall of the operating mechanism 2 by screwing a screw to the screw fixing hole 803; the flange 801 is convexly arranged at the junction between the annular plate 81 and the extension plate 82.
  • the anti-jamming device for the energy storage handle of the universal circuit breaker further comprises a reset spring 61 which is mounted on the energy storage handle 3 and used for resetting the latch 6; one end of the latch 6 is pivotally connected to the latch 6; the other end of the latch 6 is connected to one end of the reset spring 61; the other end of the reset spring 61 is fixed to the latch 6; the latch 6 is provided with a linkage protrusion 62, which is in linkage fit with the ratchet 5, in a manner of protruding toward one side; the other end of the latch 6 is provided with a spring hook 63 which is connected to the reset spring 61 and bent upwards.
  • linkage protrusion 62 is a pointed protrusion; the end part of a meshing tooth 51 of the ratchet 5, which contacts the linkage protrusion 62, is a pointed protrusion.
  • a static contact 101 which corresponds to a conductive system in each pole is mounted on the circuit breaker body 1; a moving contact 102 which corresponds to the static contact 101 of the conductive system in each pole is mounted on the circuit breaker body 1; when the circuit breaker body 1 is switched on or switched off, a large rotating shaft 21 of the operating mechanism 2 drives the moving contact 102 to act to be in contact and separated from the static contact 101, such that a main circuit is turned on or turned off; one end of the moving contact 102 is pivotally connected to the circuit breaker body 1; a cantilever 211 which corresponds to the conductive system in each pole is mounted on the large rotating shaft 21; a connecting rod 212 which is in linkage with the cantilever 211 is mounted on one side, which faces the cantilever 211, of the moving contact 102; one end of the connecting rod 212 is connected to the moving contact 102; the other end of the connecting rod 212 is pivotally connected to the end part of the cantilever 211; a first connecting portion 2120
  • first connecting portion 2120 is a first through hole formed in the end part of the connecting rod 212; the sidewall of the moving contact 102, which faces the connecting rod 212 is provided with a mounting groove 1021 which is fitted to one end of the connecting rod 212; one end of the connecting rod 212 is mounted into the mounting groove 1021 through the first through hole and is pivotally connected to the moving contact 102.
  • the second connecting portion 2121 is a second through hole formed in the other end of the connecting rod 212; one end of the cantilever 211 is provided with a cantilever mounting hole 2110 which is fitted to the second through hole.
  • the anti-jamming structure is arranged between the latch and the ratchet of the energy storage handle to prevent the latch and the ratchet from being jammed.
  • the latch and the ratchet are separated by the anti-jamming structure, thereby promoting the use handfeel of a customer.
  • the ant-jamming plate is convexly provided with the flange for separating the ratchet from the latch.
  • the latch is laid on the flange to prevent the latch and the ratchet from being jammed.
  • a universal circuit breaker of the present invention comprises a circuit breaker body 1.
  • the circuit breaker body 1 comprises a circuit breaker base, an operating mechanism 2 mounted on one side of the circuit breaker body 1, and an electromotor.
  • An energy storage handle 3 is mounted on the outside wall of one side of the operating mechanism 2.
  • the energy storage handle 3 may be rotated to manually store energy for the operating mechanism 2.
  • the electromotor 7 may electrically store energy for the circuit breaker through an external power source.
  • the energy storage handle 3 is located between the operating mechanism 2 and the electromotor 7.
  • the circuit breaker base further comprises multi-phase conductive copper bars which are arranged in a layered manner.
  • a four-phase universal circuit breaker is shown in drawings, wherein the upper layer and the lower layer of each phase are provided with a first conductive copper bar 118 and a second conductive copper bar 119 respectively. It is apparent that a single-phase circuit breaker or a multi-phase circuit breaker may be available, and multiple layers of the conductive copper bars may also be arranged.
  • the universal circuit breaker of the present invention comprises an anti-jamming device for the energy storage handle.
  • the operating mechanism 2 comprises a V-shaped rotating shaft 4 for storing energy, wherein one end of the V-shaped rotating shaft 4 extends out of one sidewall of the operating mechanism 2, and the other end of the V-shaped rotating shaft 4 is sleeved with a ratchet 5 which is in linkage with the energy storage handle 3.
  • a latch 6 which is in linkage with the ratchet 5 is arranged on one side, facing the ratchet 5, of the energy storage handle 3. The energy storage handle 3 is rotated to drive the ratchet 5 to rotate through the latch 6.
  • the anti-jamming structure which prevents the latch 6 and the ratchet 5 from being jammed is arranged between the latch 6 and the ratchet 5.
  • the anti-jamming structure comprises an anti-jamming plate 8.
  • the anti-jamming plate is configured to separate the latch 6 from the ratchet 5 when the energy storage handle 3 is in an initial state.
  • the anti-jamming structure is arranged between the latch or the ratchet of the energy storage handle to prevent the latch and the ratchet from being jammed.
  • the latch and the ratchet are separated by the anti-jamming structure to promote the use handfeel of the customer.
  • the linkage protrusion 62 of the latch 6 is pressed over one side of a meshing tooth 51 of the ratchet 5.
  • the anti-jamming structure comprises an anti-jamming plate 8 which is sheathed on the V-shaped rotating shaft 4 and located below the ratchet 5.
  • the anti-jamming plate 8 is mounted between a side plate and the ratchet of the operating mechanism. When the operating mechanism is located in the position of the initial state, the latch 6 and the ratchet 5 are separated by the anti-jamming plate 8.
  • the anti-jamming plate 8 is convexly provided with a flange 801 for separating the ratchet 5 from the latch 6.
  • the ratchet 5 When the operating mechanism releases energy, the ratchet 5 resets and rotates to the position of the initial state, and the latch 6 is laid on the flange 801 to prevent the latch 6 and the ratchet 5 from being jammed.
  • the latch 6 and the ratchet 5 are separated by the flange 801 to prevent the latch 6 and the ratchet 5 from being jammed.
  • the latch 6 may also be jacked up with another structure, such as a laterally inclined protrusion; or, the latch 6 is provided with a matching arm or other structure, which cooperates with the anti-jamming plate 8.
  • the anti-jamming plate 8 comprises an annular plate 81 and a strip-shaped extension plate 82 which extends toward one side of the annular plate 81.
  • a circular mounting hole 802 is formed in the middle of the annular plate 81.
  • the anti-jamming plate 8 is sheathed on the V-shaped rotating shaft 4 through the circular mounting hole 802.
  • the end part of the extension plate 82 is provided with a screw fixing hole 803 for fixing the anti-jamming plate 8.
  • the anti-jamming plate 8 is fixed to one sidewall of the operating mechanism 2 by screwing a screw to the screw fixing hole 803.
  • the flange 801 is convexly arranged at the junction between the annular plate 81 and the extension plate 82.
  • the anti-jamming plate 8 is simple in structure, and easy to machine.
  • the annular plate 81 is sheathed on the V-shaped rotating shaft 4 through the middle circular mounting hole 802.
  • the extension plate 82 is fastened with a screw, and is thus stable and reliable in structure.
  • the anti-jamming device for the energy storage handle of the universal circuit breaker further comprises a reset spring 61 which is mounted on the energy storage handle 3 and used for resetting the latch 6.
  • One end of the latch 6 is pivotally connected to the latch 6.
  • the other end of the latch 6 is connected to one end of the reset spring 61.
  • the other end of the reset spring 61 is fixed to the latch 6.
  • the latch 6 is provided with a linkage protrusion 62, which is in linkage fit with the ratchet 5, in a manner of protruding toward one side.
  • the other end of the latch 6 is provided with a spring hook 63 which is connected to the reset spring 61 and bent upwards.
  • the reset spring 61 is used for resetting the latch 6.
  • the linkage protrusion 62 is a pointed protrusion.
  • the end part of a meshing tooth 51 of the ratchet 5, which contacts the linkage protrusion 62, is a pointed protrusion.
  • Both the linkage projection 62 and the meshing tooth 51 are provided as pointed protrusions, and are thus matched more tightly and stably.
  • the flange 801 is in a shape of a one-tenth arc. Two ends of the flange 801 are provided with slopes 805 which are inclined downwards. The slopes 805 allow the latch 6 to more easily rotate over the flange 801.
  • the operating mechanism 2 comprises a V-shaped rotating shaft 4 for storing energy.
  • One end of the V-shaped rotating shaft 4 extends out of one sidewall of the operating mechanism 2 and is in linkage fit with an aluminum disk 72 of the electromotor 7.
  • the sidewall of one end of the V-shaped rotating shaft 4 is provided with a first V-shaped groove 401 which is fitted to the aluminum disk 72.
  • the aluminum disk 72 is provided with a reinforced connecting member having a higher hardness than the aluminum disk 72, and is in cooperative connection to the V-shaped rotating shaft 4 by the reinforced connecting member.
  • the aluminum disk is provided with the reinforced connecting member having a higher hardness than the aluminum disk, and is in cooperative connection to the reinforced connecting member, such that the V-shaped rotating shaft undergoes a low wear and is long in life, the integral performance of the circuit breaker is improved and the cost is saved.
  • the aluminum disk 72 is provided with an insertion hole 721 which is fitted to one end of the V-shaped rotating shaft 4.
  • the reinforced connecting member is a wear preventing shaft 722 which is arranged on the sidewall of the insertion hole 721, has a higher hardness than the aluminum disk 72 and is in limiting fit with a first V-shaped groove 401.
  • the wear preventing shaft which is in contact fit with the V-shaped rotating shaft is riveted in the insertion hole of the aluminum disk of the electromotor, and the wear preventing shaft has a higher hardness than the aluminum disk and has a high strength.
  • the electric energy storage causes low wear and long life, and improves the integral performance of the circuit breaker.
  • the electromotor 7 further comprises a motor 71 and an electromotor mounting plate 73, wherein the motor 71 and the aluminum disk 72 are mounted on two sides of the electromotor mounting plate 73 respectively.
  • the wear preventing shaft 722 penetrates through the aluminum disk 72.
  • the wear preventing shaft is more stable in structure.
  • the wear preventing shaft 722 is in surface contact with the sidewall of the insertion hole 721. Since the wear preventing shaft 722 is in surface contact with the insertion hole 721, the insertion hole of the aluminum disk during electric energy storage undergoes a small intensity of pressure and small wear and is thus long in life.
  • the wear preventing shaft 722 is a cylindrical shaft or a square shaft, and apparently, other shapes may be employed.
  • the aluminum disk 72 comprises a disc-shaped disk surface 7201.
  • the middle portion of the disk surface 7201 is recessed to form a first groove 7202.
  • a first boss 7203 is convexly arranged in the middle of the first groove 7201.
  • a second boss 7204 which has a diameter smaller than the first boss 7203 is convexly arranged in the middle of the first boss 7203.
  • An insertion hole 721 is formed in the middle of the second boss 7204.
  • the integral structure of the aluminum disk 72 is reasonable in design.
  • the sidewall of the other end of the V-shaped rotating shaft 4 is provided with a second V-shaped groove 402.
  • the other sidewall of the operating mechanism 2 is provided with a fastener 411 which is fitted to the second V-shaped groove.
  • the other end of the V-shaped rotating shaft 4 extends out of the other sidewall of the operating mechanism 2 and is then fixed by the fastener 411.
  • the first V-shaped groove 401 and the second V-shaped groove 402 are respectively formed in two ends of the V-shaped rotating shaft 4, accompanied with simple structure and convenience in machining.
  • the reinforced connecting member is a splicing boss 74 which is arranged above the second boss 7204 of the aluminum disk and made of a splicing material having higher hardness
  • an insertion hole 721 is formed in the middle of the splicing boss 74
  • the splicing boss 74 and the second boss 7204 may be riveted fixedly by adopting a rivet 7401.
  • the cost is relatively high, but the wear of the insertion hole of the aluminum disk is smaller than that of the above embodiment.
  • a plurality of static contacts 101 corresponding to conductive systems of various poles is mounted on the circuit breaker body 1.
  • a plurality of moving contacts 102 corresponding to the static contacts 11 of the conductive systems of various poles is mounted on the circuit breaker body 1.
  • a large rotating shaft 21 of the operating mechanism 2 drives the moving contacts 102 to act to be in contact and separated from the static contacts 101, such that a main circuit is turned on or turned off.
  • One end of each moving contact 102 is pivotally connected to the circuit breaker body 1.
  • a cantilever 211 which corresponds to the conductive system in each pole is mounted on the large rotating shaft 21.
  • a connecting rod 212 which is in linkage with the cantilever 211 is mounted on one side, which faces the cantilever 211, of the moving contact 102.
  • One end of the connecting rod 212 is connected to the moving contact 102.
  • the other end of the connecting rod 212 is pivotally connected to the end part of the cantilever 211.
  • a first connection portion 2120 which is connected to the moving contact 102 is arranged at one end of the connecting rod 212, and a second connection portion 2121 which is connected to the cantilever 211 is arranged at the other end of the connecting rod 212.
  • a distance between the first connecting portion 2120 and the second connecting portion 2121 of the corresponding connecting rod 212 of the circuit breaker away from the corresponding phase (N phase in drawings) of the operating mechanism 2 of the circuit breaker is greater than a distance between a first connecting portion 2120 and the second connecting portion 2121 of the other corresponding connecting rod 212.
  • the universal circuit breaker of the present invention since the distance between the first connecting portion and the second connecting portion of the corresponding connecting rod of the circuit breaker away from the operating mechanism of the circuit breaker is greater than the distance between the first connecting portion and the second connecting portion of the other corresponding connecting rod, the overtravel distance of the corresponding phase near the operating mechanism of the circuit breaker is ensured, and the final pressure of the contacts is increased to maintain a reliable contact fit of the contacts.
  • the universal circuit breaker of the present embodiment comprises a circuit breaker A phase, a circuit breaker B phase, a circuit breaker C phase, and a circuit breaker N phase.
  • the operating mechanism 2 is arranged close to the circuit breaker B phase.
  • a distance between a first connecting portion 2120 and a second connecting portion 2121 of a connecting rod 212 of the circuit breaker N phase is greater than a distance between a first connecting portion 2120 and a second connecting portion 2121 of a connecting rod 212 of each of the circuit breaker A phase, the circuit breaker B phase, and the circuit breaker C phase.
  • the N, A, B, and C phases are connected to the moving contacts and the operating mechanism by using the connecting rods of different lengths, thereby making up for the shortage of the overtravel of the other phases except the B phase.
  • the operating mechanism 2 is arranged close to the circuit breaker B phase.
  • the distance between the first connecting portion 2120 and the second connecting portion 2121 of the connecting rod 212 corresponding to the circuit breaker B phase may be smallest which is greater than the distance between the first connecting portion 2120 and the second connecting portion 2121 of the connecting rod 212 corresponding to each of the circuit breaker A phase and the circuit breaker C phase, and the distance between the first connecting portion 2120 and the second connecting portion 2121 of the connecting rod 212 corresponding to the circuit breaker N phase is largest.
  • the distances may be adjusted according to actual conditions.
  • the distance between the first connecting portion 2120 and the second connecting portion 2121 of the connecting rod 212 corresponding to each of the circuit breaker A phase, the circuit breaker B phase and the circuit breaker C phase is identical, but the distance between the first connecting portion 21200 and the second connecting portion 2121 of the connecting rod 212 corresponding to the circuit breaker N is largest.
  • the first connecting portion 2120 is a first through hole formed in the end part of the connecting rod 212.
  • the sidewall of the moving contact 102, which faces the connecting rod 212 is provided with a mounting groove 1021 which is fitted to one end of the connecting rod 212.
  • One end of the connecting rod 212 is mounted into the mounting groove 1021 through the first through hole and is pivotally connected to the moving contact 102.
  • the second connecting portion 2121 is a second through hole formed in the other end of the connecting rod 212.
  • One end of the cantilever 211 is provided with a cantilever mounting hole 2110 which is fitted to the second through hole.
  • the distance between the first through hole and the second through hole of the connecting rod 212 of the circuit breaker N phase is 34 mm.
  • the distance between the first through hole and the second through hole of each of the circuit breaker A phase, the circuit breaker B phase, and the circuit breaker C phase is 33.5 mm.
  • the connecting rod 212 comprises a connecting rod insertion portion 212a that is fitted to the moving contact 102, and a cantilever connecting portion 212b that is connected to one end of the connecting rod insertion portion 212a and connected with the cantilever 211.
  • the first connecting portion 2120 is arranged on the connecting rod insertion portion 212a
  • the second connecting portion 2121 is arranged on the cantilever connecting portion 212b.
  • the connecting rod insertion portion 212a is plate-shaped.
  • the cantilever connecting portion 212b is of a lateral U-shaped structure connected to one end of the connecting rod insertion portion 212a. One side of two sidewalls of the U-shaped structure is simultaneously connected to the connecting rod insertion portion 212a.
  • the cantilever 211 is provided with a cantilever mounting hole 2110 corresponding to the second through hole.
  • the connecting rod 212 further comprises a first pin shaft 215 which passes through the second through hole in one sidewall of the U-shaped structure, the cantilever mounting hole 2110 and the second through hole in the other sidewall of the U-shaped structure in sequence to connect the connecting rod 212 and the cantilever 211 together.
  • the first pin shaft 215 comprises a pin shaft rod 2151 and a pin shaft cap 2152 arranged at the end part of the pin shaft rod 2151.
  • the sidewall, which is close to the other end and surrounds the pin shaft rod 2151 is recessed to form an annular groove 2153.
  • the pin shaft rod 2151 of the first pin shaft 215 passes through the second through hole in one sidewall of the U-shaped structure, the cantilever mounting hole 2110 and the second through hole in the other sidewall of the U-shaped structure in sequence, such that the connecting rod 212, the second through hole in the other sidewall of the U-shaped structure and the annular groove 2153 are fixedly mounted.
  • the pin shaft cap 2152 is buckled onto the outer sidewall of one side of the U-shaped structure. Since the connecting rod 212 and the cantilever 211 are mounted fixedly by adopting the first pin shaft 215, the mounting is convenient and the structure is stable and reliable.
  • the other end of the pin shaft rod 2151 is provided with a chamfer 2155 for easy mounting, and the chamfer 2155 facilitates the mounting of the first pin shaft 215.
  • the moving contact 102 is provided with a limiting protrusion 1025 for limiting a movement stroke of the connecting rod 212, in a manner of protruding toward one side of the cantilever 211.
  • the limiting protrusion 1025 limits the movement stroke of the connecting rod 212.
  • one end of the moving contact 102 is pivotally connected to a first conductive copper bar 118 of the circuit breaker, and a moving contact point arranged at the other end of the moving contact 102 faces a static contact point of the static contact 101, which is arranged toward the end part of a second conductive copper bar 119.
  • the moving contact 102 rotates, such that the static contact point and the movable contact point are closed and the main circuit is turned on.
  • the connecting rod further comprises a fixing support 112 and a second pin shaft 113, wherein the fixing support 112 is fixedly connected to the lower side of the end part of the first conductive copper bar 118.
  • a U-shaped groove 1121 is formed in one side of the fixing support 112.
  • the second pin shaft 113 passes through the U-shaped groove 1121 and is pivotally connected to the other end of the movable contact 102.
  • the moving contact 102 is mounted on the first conductive copper bar 118 through the fixing support 112 and the second pin shaft 113, such that the structure is simple and compact.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP16919247.3A 2016-10-21 2016-11-21 Appareil anti-coincement de poignée de stockage d'énergie de disjoncteur universel Active EP3531436B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610919514.6A CN107978498B (zh) 2016-10-21 2016-10-21 万能式断路器储能手柄防卡滞装置
PCT/CN2016/106610 WO2018072255A1 (fr) 2016-10-21 2016-11-21 Appareil anti-coincement de poignée de stockage d'énergie de disjoncteur universel

Publications (3)

Publication Number Publication Date
EP3531436A1 true EP3531436A1 (fr) 2019-08-28
EP3531436A4 EP3531436A4 (fr) 2020-04-29
EP3531436B1 EP3531436B1 (fr) 2021-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16919247.3A Active EP3531436B1 (fr) 2016-10-21 2016-11-21 Appareil anti-coincement de poignée de stockage d'énergie de disjoncteur universel

Country Status (7)

Country Link
EP (1) EP3531436B1 (fr)
CN (1) CN107978498B (fr)
BR (1) BR112019007702B1 (fr)
ES (1) ES2908069T3 (fr)
MY (1) MY194853A (fr)
RU (1) RU2716009C1 (fr)
WO (1) WO2018072255A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN109632961B (zh) * 2019-01-22 2021-12-14 铜仁学院 一种预应力无损检测方法及其装置
CN118156099A (zh) * 2024-05-09 2024-06-07 北陆电气有限公司 一种万能式断路器的速装操作机构、断路器及装配方法

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GB434282A (en) * 1934-02-03 1935-08-29 Henry Howard Sprigg Improvements in and relating to automatic circuit breakers
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EP3531436A4 (fr) 2020-04-29
BR112019007702A2 (pt) 2019-07-02
BR112019007702B1 (pt) 2023-01-03
EP3531436B1 (fr) 2021-12-15
ES2908069T3 (es) 2022-04-27
WO2018072255A1 (fr) 2018-04-26
MY194853A (en) 2022-12-20
CN107978498B (zh) 2020-07-28
CN107978498A (zh) 2018-05-01
RU2716009C1 (ru) 2020-03-05

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