EP4261863A1 - Betriebsmechanismus für einen zweistromschalter und zweistromschalter - Google Patents

Betriebsmechanismus für einen zweistromschalter und zweistromschalter Download PDF

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Publication number
EP4261863A1
EP4261863A1 EP23305368.5A EP23305368A EP4261863A1 EP 4261863 A1 EP4261863 A1 EP 4261863A1 EP 23305368 A EP23305368 A EP 23305368A EP 4261863 A1 EP4261863 A1 EP 4261863A1
Authority
EP
European Patent Office
Prior art keywords
driving member
dual
driving
power
stop
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.)
Pending
Application number
EP23305368.5A
Other languages
English (en)
French (fr)
Inventor
Xiaojing ZENG
Ning Wang
Jiayu LU
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP4261863A1 publication Critical patent/EP4261863A1/de
Pending legal-status Critical Current

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    • 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
    • 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
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • 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
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • 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
    • H01H3/52—Driving mechanisms, i.e. for transmitting driving force to the contacts with means to ensure stopping at intermediate operative positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/018—Application transfer; between utility and emergency power supply

Definitions

  • the present disclosure relates to an operation mechanism for a dual-power switch and a dual-power switch.
  • Dual-power switches are widely used in industrial field, especially in emergency power supply system. Based on the status of the power supply circuit, a dual-power switch can switch the load circuit from one power supply to another, for example, between the commercial power supply and the standby power supply, thus maintaining the continuous and reliable operation of the load circuit.
  • the dual-power switches are divided into two-stage (two-position) and three-stage (three-position) according to its working positions (also known as working stages).
  • the two-stage dual-power switch is divided into two working positions: a common power supply and a standby power supply, which ensures that the load is always connected with one power supply, and the power is cut off only during the switching period (usually 50-100 ms).
  • the two-stage dual-power switch cannot cut off both power supplies at the same time.
  • the three-stage dual-power switch is divided into three working positions: common power supply, zero position and standby power supply, and the middle zero position can be called dual-separation position, which can ensure the long-term disconnection between the load and the two power supplies.
  • a controller determines whether the three-stage dual-power switch remains in the middle zero position and how long it remains in the middle zero position. Generally speaking, the controller can provide delay control of 0-300 s.
  • the middle zero position provides a buffer time for the switching process of dual power automatic switch, which is beneficial to arc extinguishing and ensures the safety of the whole switching process.
  • a traditional middle zero position keeping solution is to use an independent power blocking mechanism, which has high cost and complex structure.
  • Another traditional solution uses friction to keep the middle position, so the reliability is not high.
  • the present disclosure provides an operation mechanism for a dual-power switch and a dual-power switch. Such an operation mechanism can ensure that the dual-power switch can perform reliable switching and stably maintain the middle position, and is of simple structure and low cost.
  • the present disclosure provides an operation mechanism for a dual-power switch.
  • the operation mechanism is used for driving the breaking unit of the dual-power switch, so that the dual-power switch can be switched between a dual-separation state, a first power-on state and a second power-on state.
  • the operation mechanism is characterized in that, the operation mechanism comprises: a rotation shaft, arranged on a housing of the dual-power switch along a rotation axis; a first driving member, arranged on the rotation shaft and can rotate around the rotation shaft in a first direction and a second direction which are opposite to each other; a second driving member, arranged on the rotation shaft, connected to the breaking unit, and can rotate around the rotation shaft between a dual-separation position, a first power-on position and a second power-on position under the driving of the first driving member; a stop member, arranged on the frame of the housing and can move between a locking position and an unlocking position under the driving of the first driving member, wherein in the locking position, the stop member keeps the second driving member near the dual-separation position; in the unlocking position, the stop member does not block the second driving member; and an elastic member, arranged between the stop member and the frame and elastically biasing the stop member to the locking position, wherein the first driving member drives the second driving member to rotate after
  • the operation mechanism further comprises a driving rod, which is arranged on the second driving member, and the second driving member is connected to the breaking unit through the driving rod.
  • the stop member comprises a first stop member and a second stop member arranged rotatably on the frame and arranged with respect to each other in a mirroring manner
  • the elastic member comprises a first elastic member and a second elastic member, wherein the first elastic member exerts an elastic biasing force on the first stop member, and the second elastic member exerts an elastic biasing force on the second stop member, wherein when the first stop member and the second stop member are in the locking position, the first stop member and the second stop member prevents the second driving member from rotating from the dual-separation position to the first power-on position or the second power-on position.
  • the first driving member comprises a first driving surface and a second driving surface
  • the second driving member comprises a first driven surface capable of cooperating with the first driving surface and a second driven surface capable of cooperating with the second driving surface
  • the first driving member comprises a first body and a first boss arranged on the first body and extending along a radial direction perpendicular to the rotation axis, and two side surfaces of the first boss form the first driving surface and the second driving surface.
  • the second driving member comprises a second body and a recess arranged on the second body and extending along the radial direction, and two side surfaces of the recess form the first driven surface and the second driven surface, wherein the first boss is inserted into the recess.
  • the first driving member further comprises a second boss arranged on the first body, wherein the second boss extends along the radial direction and is outside the first boss, and is located between the first body and the first boss along the direction of the rotation axis, wherein the second boss can drive the first stop member and the second stop member to move between the locking position and the unlocking position respectively.
  • the second driving member further comprises a protrusion arranged on the second body, wherein the protrusion extends along the radial direction and is outside the recess, wherein the first stop member and the second stop member can stop the movement of the protrusion.
  • the first stop member comprises a first body and a first stop portion extending from the first body along the direction of the rotation axis toward the protrusion
  • the second stop member comprises a second body and a second stop portion extending from the second body along the direction of the rotation axis toward the protrusion, wherein the first stop portion and the second stop portion are used for stopping the movement of the protrusion.
  • the first driving member can rotate around the rotation shaft between an initial position, a first position, and a second position, wherein after the first driving member rotates from the initial position in a first direction by a first idle stroke, the first driving surface contacts the first driven surface, and when the first driving member continues to rotate in the first direction to the first position, the first driving member drives the second driving member to rotate in the first direction from the dual-separation position to the first power-on position, so that the dual-power switch switches from the dual-separation state to the first power-on state; and wherein, after the first driving member rotates from the initial position in the second direction by a second idle stroke, the second driving surface contacts the second driven surface, and when the first driving member continues to rotate in the second direction to the second position, the first driving member drives the second driving member to rotate in the second direction from the dual-separation position to the second power-on position, so that the dual-power switch is switched from the dual-separation state to the second power-on state.
  • the first idle stroke and the second idle stroke have the same rotation angle.
  • the first driving member rotates from the first position in the second direction by a third idle stroke
  • the second driving surface contacts the second driven surface
  • the first driving member drives the second driving member to rotate in the second direction from the first power-on position to the dual-separation position, so that the dual-power switch is switched from the first power-on state to the dual-separation state
  • the first driving member rotates from the second position in the first direction by a third idle stroke
  • the first driving surface contacts the first driven surface, and when the first driving member continues to rotate in the first direction to the initial position
  • the first driving member drives the second driving member to rotate in the first direction from the second power-on position to the dual-separation position, so that the dual-power switch is switched from the second power-on state to the dual-separation state.
  • the second boss drives the first stop member to rotate in the first direction from the locking position to the unlocking position.
  • the second boss drives the second stop member to rotate in the second direction from the locking position to the unlocking position.
  • the present disclosure further provides a dual-power switch, which comprises the above-mentioned operation mechanism.
  • the present disclosure provides an operation mechanism of a three-position dual-power switch, which can realize reliable switching and can be kept in the middle dual-separation position for a long time, so that a special three-stage automatic dual-power switch conforming to IEC60947-6 and GB14048.11 can be realized, thus meeting the requirements of non-continuous switching modes such as Open transfer and Delayed transfer.
  • Fig. 1 shows an exploded view of an operation mechanism for a dual-power switch according to an embodiment of the present disclosure.
  • the operation mechanism is used for driving a breaking unit of the dual-power switch, so that the dual-power switch can be switched between a dual-separation state, a first power-on state and a second power-on state.
  • the operation mechanism comprises a rotation shaft 3, a first driving member 1, a second driving member 2, stop members, and elastic members.
  • the rotation shaft 3 is arranged on a housing (not shown in the figures) of a dual-power switch, such as the housing of the breaking unit of the dual-power switch, along a rotation axis (as shown by the dotted line A in Fig. 1 ).
  • the first driving member 1 is arranged on the rotation shaft 3 and can rotate around the rotation shaft 3 in a first direction and a second direction opposite to each other.
  • the second driving member 2 is arranged on the rotation shaft 3, connected to the breaking unit, and can rotate around the rotation shaft 3 under the driving of the first driving member! between a dual-separation position, a first power-on position and a second power-on position, which respectively correspond to the dual-separation state, the first power-on state and the second power-on state of the dual-power switch.
  • the stop members are arranged on the frame of the housing and can move between a locking position and an unlocking position under the driving of the first driving member 1.
  • the stop members are arranged on a fixed frame 4 of the housing of the breaking unit. In other embodiments, the stop members are arranged on a fixed frame on a side plate of the operation mechanism. In the locking position, the stop members keep the second driving member 2 near the dual-separation position. In the unlocking position, a stop member does not block the second driving member 2, that is, exits the moving path of the second driving member 2.
  • the elastic member is arranged between the stop member and the frame and elastically biases the stop member to the locking position.
  • the first driving member 1 after rotating for an idle rotation, drives the second driving member 2 to rotate, and the second driving member 2 further drives the breaking unit to switch the state of the dual-power switch.
  • the first driving member 1 drives the stop member to move from the locking position to the unlocking position when rotating by the idle stroke.
  • the operation mechanism further comprises a driving rod 5, which is arranged on the second driving member 2, and the second driving member 2 is connected to the breaking unit through the driving rod 5.
  • the driving rod 5 can extend in a direction parallel to the rotation axis, so that the rotation of the second driving member can drive the breaking unit to move.
  • the stop members comprise a first stop member 6 and a second stop member 7 which are arranged rotatably on the frame 4 of the housing and are arranged with respect to each other in a mirroring manner
  • the elastic members comprise a first elastic member 8 and a second elastic member 9.
  • the first elastic member 8 exerts an elastic biasing force on the first stop member 6, for example, in the clockwise direction in Fig. 2 .
  • the second elastic member 9 exerts an elastic biasing force on the second stop member 7, for example, in the counterclockwise direction in Fig. 2 .
  • the first driving member 1 comprises a first driving surface 11 and a second driving surface 12
  • the second driving member 2 comprises a first driven surface 21 that can cooperate with the first driving surface 11 and a second driven surface 22 that can cooperate with the second driving surface 12.
  • the first driving member 1 comprises a first body 13 and a first boss 14 arranged on the first body 13 and extending in a radial direction perpendicular to the rotation axis, and two side surfaces of the first boss 14 form the first driving surface 11 and the second driving surface 12.
  • the first body 13 may have a disk shape or other shapes, which is not limited by the present disclosure.
  • the second driving member 2 comprises a second body 23 and a recess 24 arranged on the second body 23 and extending in the radial direction, and two side surfaces of the recess 24 form the first driven surface 21 and the second driven surface 22.
  • the first boss 14 is inserted into the recess 24.
  • the second body 23 may have a disk shape or other shapes, which is not limited by the present disclosure.
  • the first driving member 1 further comprises a second boss 15 arranged on the first body 13, which extends in the radial direction and is outside (i.e., radially outside) the first boss 14, and is located between the first body 13 and the first boss 14 along the direction of the rotation axis.
  • the second boss 15 can drive the first stop member 6 and the second stop member 7 to move respectively between their respective locking positions and unlocking positions.
  • the second driving member 2 further comprises a protrusion 25 provided on the second body 23, which extends in the radial direction and is outside (i.e., radially outside) the recess 24.
  • the first stop member 6 and the second stop member 7 can stop the movement of the protrusion 25.
  • the first stop member 6 comprises a first body 61 and a first stop portion 62 extending from the first body 61 toward the protrusion 25 in the direction of the rotation axis
  • the second stop member 7 comprises a second body 71 and a second stop portion 72 extending from the second body 71 toward the protrusion 25 in the direction of the rotation axis.
  • the first stop portion 62 and the second stop portion 72 are used to stop the movement of the protrusion 25, so as to stop the second driving member 2.
  • the first driving member 1 can rotate around the rotation shaft 3 between an initial position, a first position, and a second position, which correspond to the dual-separation position, the first power-on position, and the second power-on position of the second driving member 2.
  • FIGs. 3 to 5 depict the action of the operation mechanism in the process of the dual-power switch switching from the dual-separation state to the first power-on state.
  • Figs. 5 to 7 depict the action of the operation mechanism in the process of the dual-power switch switching from the first power-on state to the dual-separation state.
  • the first driving surface 11 contacts the first driven surface 21 after the first driving member 1 rotates by a first idle stroke from the initial position in a first direction (i.e., counterclockwise in the figure).
  • the second boss 15 abuts against the first body 61 of the first stop member 6, and overcomes the elastic biasing force exerted by the first elastic member 8 to drive the first stop member 6 to rotate from the locking position to the unlocking position in the first direction, so that the first stop portion 62 no longer blocks the movement of the protrusion 25.
  • the first driving member 1 drives the second driving member 2 to rotate in the first direction from the dual-separation position to the first power-on position, so that the dual-power switch is switched from the dual-separation state to the first power-on state.
  • the second boss 15 is always overcoming the elastic biasing force exerted by the first elastic member 8 in the former stage to keep the first stop member 6 in the unlocking position, so that the second driving member 2 can follow the first driving member 1 to rotate in the first direction.
  • the second boss 15 no longer abuts against the first body 61 of the first stop member 6, and the first stop member 6 returns to its locking position under the action of the first elastic member 8. Since neither the first body 61 nor the first stop portion 62 of the first stop member 6 are on the moving path of the protrusion 25 of the second driving member 2, the second driving member 2 can rotate to the first power-on position under the drive of the first driving member 1.
  • the second driving surface 12 contacts the second driven surface 22 after the first driving member 1 rotates from the first position in the second direction (i.e., clockwise in the figure) by a third idle stroke.
  • the second boss 15 abuts against the first body 61 of the first stop member 6, and overcomes the elastic biasing force exerted by the first elastic member 8 to drive the first stop member 6 to rotate from the locking position to the unlocking position in the first direction, thus the movement of the protrusion 25 is no longer blocked.
  • the first driving member 1 drives the second driving member 2 to rotate in the second direction from the first power-on position to the dual-separation position, so that the dual-power switch is switched from the first power-on state to the dual-separation state.
  • the first driving member 1 rotates to the initial position set horizontally in Fig. 7 , and it does not move any more.
  • the second boss 15 no longer abuts against the first body 61 of the first stop member 6, so that the first stop member 6 returns to its locking position under the action of the first elastic member 8.
  • the second driving member 2 continues to move in the second direction due to the power provided by the first driving member 1.
  • the second driving member 2 will bounce between the first stop portion 6 and the second stop portion 72 until it is completely kept in the dual-separation position.
  • the second driving surface 12 contacts the second driven surface 22.
  • the second boss 15 abuts against the second body 71 of the second stop member 7, and overcomes the elastic biasing force exerted by the second elastic member 9 to drive the second stop member 7 to rotate in the second direction from the locking position to the unlocking position, so that the second stop portion 72 no longer blocks the movement of the protrusion 25.
  • the first driving member 1 drives the second driving member 2 to rotate in the second direction from the dual-separation position to the second power-on position, so that the dual-power switch is switched from the dual-separation state to the second power-on state.
  • the second boss 15 is always overcoming the elastic biasing force exerted by the second elastic member 9 in the former stage to keep the second stop member 7 in the unlocking position, so that the second driving member 2 can follow the first driving member 1 to rotate in the second direction.
  • the second boss 15 no longer abuts against the second body 71 of the second stop member 7, and the second stop member 7 returns to its locking position under the action of the second elastic member 9. Since neither the second body 71 nor the second stop portion 72 of the second stop member 7 are on the moving path of the protrusion 25 of the second driving member 2, the second driving member 2 can rotate to the second power-on position under the drive of the first driving member 1.
  • the first driving surface 11 contacts the first driven surface 21.
  • the second boss 15 abuts against the second body 71 of the second stop member 7, and overcomes the elastic biasing force exerted by the second elastic member 9 to drive the second stop member 7 to rotate in the second direction from the locking position to the unlocking position, thus the movement of the protrusion 25 is no longer blocked.
  • the first driving member 1 drives the second driving member 2 to rotate in the first direction from the second power-on position to the dual-separation position, so that the dual-power switch is switched from the second power-on state to the dual-separation state.
  • the first driving member 1 rotates to the initial position set horizontally in Fig. 7 , and it does not move any more.
  • the second boss 15 no longer abuts against the second body 71 of the second stop member 7, so that the second stop member 7 returns to its locking position under the action of the second elastic member 9.
  • the second driving member 2 continues to move in the first direction due to the power provided by the first driving member 1.
  • the second driving member 2 will bounce between the first stop portion 62 and the second stop portion 72 until it is completely kept in the dual-separation position.
  • the first idle stroke is the rotation angle of the first driving surface 11 in the process of traveling from the initial position to a position in contact with the first driven surface 21
  • the second idle stroke is the rotation angle of the second driving surface 11 in the process of traveling from the initial position to a position in contact with the second driven surface 21.
  • the first idle stroke and the second idle stroke may have the same rotation angle.
  • the third idle stroke is the rotation angle of the second driving surface 12 in the process of traveling from the first position to a position in contact with the second driven surface 22, or the rotation angle of the first driving surface 11 in the process of traveling from the second position to a position in contact with the first driven surface 21.
  • the operation mechanism of the present disclosure can quickly and reliably obtain a stable middle dual-separation state, and can reliably switch from the intermediate dual-separation state to the first power-on state or the second power-on state.
  • the operation mechanism of the present disclosure is simple in structure and low in cost.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Transmission Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP23305368.5A 2022-03-18 2023-03-17 Betriebsmechanismus für einen zweistromschalter und zweistromschalter Pending EP4261863A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210273079.XA CN116798788A (zh) 2022-03-18 2022-03-18 用于双电源转换开关的操作机构和双电源转换开关

Publications (1)

Publication Number Publication Date
EP4261863A1 true EP4261863A1 (de) 2023-10-18

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EP23305368.5A Pending EP4261863A1 (de) 2022-03-18 2023-03-17 Betriebsmechanismus für einen zweistromschalter und zweistromschalter

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EP (1) EP4261863A1 (de)
CN (1) CN116798788A (de)
AU (1) AU2023201723B2 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1404811A (en) 1971-08-30 1975-09-03 Fouquet Werk Frauz & Planck Cylinder and dial circular knitting machine
CN204332749U (zh) * 2014-12-22 2015-05-13 施耐德万高（天津）电气设备有限公司 开关电器触头机构的双片式动触头组
CN106887356A (zh) * 2015-12-16 2017-06-23 Asco电力技术公司 用于电源开关的传动装置及包括该传动装置的电源开关
EP3933868A1 (de) * 2020-06-24 2022-01-05 Schneider Electric Industries SAS Bedienungsmechanismus eines doppelleistungs-automatikübertragungsschalters und doppelleistungs-automatikübertragungsschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1404811A (en) 1971-08-30 1975-09-03 Fouquet Werk Frauz & Planck Cylinder and dial circular knitting machine
CN204332749U (zh) * 2014-12-22 2015-05-13 施耐德万高（天津）电气设备有限公司 开关电器触头机构的双片式动触头组
CN106887356A (zh) * 2015-12-16 2017-06-23 Asco电力技术公司 用于电源开关的传动装置及包括该传动装置的电源开关
EP3933868A1 (de) * 2020-06-24 2022-01-05 Schneider Electric Industries SAS Bedienungsmechanismus eines doppelleistungs-automatikübertragungsschalters und doppelleistungs-automatikübertragungsschalter

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AU2023201723B2 (en) 2024-03-28
AU2023201723A1 (en) 2023-10-05
CN116798788A (zh) 2023-09-22

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RBV Designated contracting states (corrected)

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR