EP2784794B1 - Operating system for automatic turn-over switch and gear set - Google Patents

Operating system for automatic turn-over switch and gear set Download PDF

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Publication number
EP2784794B1
EP2784794B1 EP12851672.1A EP12851672A EP2784794B1 EP 2784794 B1 EP2784794 B1 EP 2784794B1 EP 12851672 A EP12851672 A EP 12851672A EP 2784794 B1 EP2784794 B1 EP 2784794B1
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EP
European Patent Office
Prior art keywords
spare
conventional side
gear
spare side
storage
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
EP12851672.1A
Other languages
German (de)
French (fr)
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EP2784794A1 (en
EP2784794A4 (en
Inventor
Mi Zhou
Degang QU
Haishen GONG
Kai JIANG
Li BA
Jia Li
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
SEARI Electric Technology Co Ltd
Original Assignee
Zhejiang Chint Electrics Co Ltd
SEARI Electric Technology 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.)
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Publication date
Application filed by Zhejiang Chint Electrics Co Ltd, SEARI Electric Technology Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Priority to PL12851672T priority Critical patent/PL2784794T3/en
Publication of EP2784794A1 publication Critical patent/EP2784794A1/en
Publication of EP2784794A4 publication Critical patent/EP2784794A4/en
Application granted granted Critical
Publication of EP2784794B1 publication Critical patent/EP2784794B1/en
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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
    • H01H3/32—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
    • H01H3/22—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
    • H01H3/3005—Charging means
    • H01H3/3015—Charging means using cam devices
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to the field of low-voltage electric appliances, and more particularly, to an operating system of automatic changeover switch.
  • the existing operating system of an integrative automatic changeover switch mostly utilizes an electromagnet, a linear motor to or manually rotates and connects to the principal axis on the common power supply side or the spare power supply side, so as to drive the contact system to move to a closed position. Since the force generated by electromagnet is limited by volume, and direct manual operation can hardly result in large operating forces, the capacity of the changeover switch is limited. If a high-capacity integrative automatic changeover switch utilizes an existing electromagnet, a linear motor, or an operating system operated manually, the switch requires a large volume, and the reliability is relatively low.
  • the patent application with the publication number of CN101826404A discloses a three-gear switch mechanism of an electric appliance.
  • the three-gear switch mechanism comprises: a first gear connected to a first contact, the rotation of the first gear drives the first contact to close to or open from a first power supply; a second gear connected to a second contact, the rotation of the second gear drives the second contact to close to or open from a second power supply, the first gear not contacting the second gear; and an active gear engages and drives the second gear to rotate, the rotation direction of the active gear being opposite to that of the first gear and the second gear.
  • the active gear rotates along a second direction, drives the first gear to rotate along a first direction so that the first contact is separated from the first power supply from a closed position to an open position, drives the second gear to rotate along the first direction so that the second contact approaches the second power supply from an open position to a closed position.
  • This switch mechanism is simple and reliable, utilizes different engagement conditions of gear set to achieve the switch of positions, leaves out the use of electromagnet, improves reliability while simplify the structure.
  • the solution of this parent application is an incomplete three-gear solution, which has a high requirement on the processing technology and low reliability, and is used in the change of switch of non pre storage operational structure.
  • the patent application with the publication number CN101826403A discloses a double-storage operational mechanism with a single operational axis that is used in an automatic changeover switching appliance.
  • the double-storage operational mechanism comprises: an operating handle and an operating motor that are positioned at a first side of a mounting plate of the operational mechanism of the automatic changeover switching appliance, the operating handle and the operating motor being set in a first operating cam principle axis and drives the rotation of the first operating cam principle axis; a drive gear that are positioned at a second side of the mounting plate of the operational mechanism, the drive gear connects the first operating cam principle axis and a second operating cam principle axis of the operational mechanism, the rotation of the first operating cam principle axis drives the rotation of the second operating cam principle axis via the drive gear; a storage mechanism that connects to the first operating cam principle axis via a first cam and connects to the second operating cam principle axis via a second cam, the energy generated from the rotations of the first operating cam principle axis and
  • the solution of this patent application is a solution that utilizes two gears. This solution cannot assure the precise location of the double-storage operational mechanism, cannot assure that the storage operation of a second storage mechanism starts after the storage operation of a first storage mechanism ends, has a low reliability, and has a possibility of misoperation and gear stuck.
  • the present invention intends to provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch.
  • a gear set of an operating system of an automatic changeover switch is provided.
  • the gear set is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, wherein the gear set comprises:
  • a storage mechanism of an operating system of an automatic changeover switch is provided.
  • the storage mechanism is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, wherein the storage mechanism comprises:
  • an operating system of an automatic changeover switch the operating system connecting a conventional side power supply and a spare side power supply.
  • the operating system comprising:
  • the rotation of the operating handle and the motor drives the rotation of the common axis, while the rotation of the common axis drives the rotation of the gear set.
  • the rotation of the operating handle and the motor drives the rotation of the common axis within the range of 0°-150° so as to store energy for the conventional side operational mechanism, and within the range of 150°-300° so as to store energy for the spare side operational mechanism.
  • the operating handle and the motor being in the middle position so that the operating system is disconnected from the conventional side power supply and the spare side power supply; the rotation of the operating handle and the motor driving the rotation of the common axis, the common axis transferring the torque to the conventional side drive axis through the conventional side transmission gear and by driving the changeover gear and the conventional side drive gear, the rotation of the conventional side cam being driven by the conventional side drive axis, the conventional side cam driving the rotation of the conventional side storage lever and compressing the conventional side storage spring to store energy; when the common axis rotates to 150°, the energy storage operation of the conventional side operational mechanism is completed, and the conventional side clutch separates from the conventional side drive axis; the common axis continues to rotate, and transfers the torque to the spare side drive axis via the spare side transmission gear and the spare side drive gear, the spare side drive axis driving the spare side cam to rotate, while the spare side cam driving the spare side storage lever to rotate and compressing the spare side storage spring to store energy; when the common axis
  • the conventional side cam and the spare side cam have different curves.
  • the conventional side cam has a variable radius within the rotation range of 0°-150°, and has a constant radius within the rotation range of 150°-300°;
  • the spare side cam has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°.
  • the present invention may provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch. By utilizing energy storage operations, a relatively high switching force required by the high-capacity integrative three-position automatic changeover switch is satisfied.
  • a gear set of an operating system of an automatic changeover switch is provided. As shown in Figure 2 , this gear set is used in energy-storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other.
  • the conventional side operational mechanism is connected to a conventional side power supply, while the spare side operational mechanism is connected to a spare side power supply.
  • This gear set comprises:
  • a storage mechanism of an operating system of an automatic changeover switch is provided.
  • the storage mechanism is used for energy-storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other.
  • the conventional side operational mechanism is connected to a conventional side power supply, while the spare side operational mechanism is connected to a spare side power supply.
  • This storage mechanism comprises:
  • an operating system of an automatic changeover switch is disclosed. As shown in Figure 1 , the operating system connects a conventional side power supply and a spare side power supply.
  • the operating system comprises:
  • the rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111, while the rotation of the common axis 111 drives the rotation of the gear set.
  • the rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111 within the range of 0°-150° so as to store energy for the conventional side operational mechanism, and within the range of 150°-300° so as to store energy for the spare side operational mechanism.
  • the operating handle 112 and the motor 113 are in the middle position so that the operating system is disconnected from the conventional side power supply and the spare side power supply.
  • the rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111.
  • the common axis 111 transfers the torque to the conventional side drive axis 118 through the conventional side transmission gear 109a and by driving the changeover gear 108 and the conventional side drive gear 108a.
  • the rotation of the conventional side cam 101 is driven by the conventional side drive axis 118.
  • the conventional side cam 101 drives the rotation of the conventional side storage lever 104a, and compress the conventional side storage spring to store energy.
  • the common axis 111 rotates to 150°, the energy storage operation of the conventional side operational mechanism is completed, and the conventional side clutch 110a separates from the conventional side drive axis 118.
  • the common axis 111 continues to rotate, and transfers the torque to the spare side drive axis 119 via the spare side transmission gear 109b and the spare side drive gear 108b.
  • the spare side drive axis 119 drives the spare side cam 102 to rotate, while the spare side cam 102 drives the spare side storage lever 104b to rotate and compress the spare side storage spring 103b to store energy.
  • the common axis 111 rotates to 300°, the energy storage operation of the spare side operational mechanism is completed, and the spare side clutch 110b separates from the spare side drive axis 119.
  • the conventional side cam 101 and the spare side cam 102 are designed as having different curves so as to implement the aforesaid process.
  • the conventional side cam 101 has a variable radius within the rotation range of 0°-150°, and has a constant radius within the rotation range of 150°-300°.
  • the spare side cam 102 has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°.
  • Figure 6 and Figure 7 illustrate structure diagrams of a conventional side cam and a spare side cam, respectively.
  • the radius of base circle of the conventional side cam is not identical to that of the spare side cam so that the cam may be precisely located when the storage spring is released.
  • the cam rotates the storage lever via the roller on the storage lever and drives the leader to compress the spring so as to store energy.
  • the conventional side cam is different from the spare side cam.
  • the conventional side cam has a variable radius within the rotation range of 0°-150° so store energy at the conventional side spring, and has a constant radius within the rotation range of 150°-300°.
  • the spare side cam 102 has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°.
  • rotation of one circle may store energy for two operational mechanisms.
  • the radius of base circle of the conventional side cam is not identical to that of the spare side cam so that the cam may be precisely located when the storage spring is released.
  • the conventional side when the operating handle or motor mounted on the common axis rotates, the conventional side is switched via one gear, while other gears drives the drive axis of the conventional side and spare side operational mechanisms to rotate.
  • the drive axis has a cam mounted thereon. When the cam rotates within 0°-150°, the energy of the conventional side operational mechanism is stored. After the energy storage of the conventional side operational mechanism is completed, the clutch device mounted at the conventional side separates the drive axis of the conventional side operational mechanism from the common axis. The common axis continues to rotate within 150°-300° so as to complete the energy storage operation of the spare side operational mechanism. Similarly, the clutch device mounted at the spare side separates the drive axis of the spare side operational mechanism from the common axis. Thus, rotation of one circle may store energy for two operational mechanisms.
  • the gear set has a certain speed ratio so as to reduce operational forces.
  • the present invention may implement the storage operations of two independent energy storage operational mechanisms with one operating handle or motor.
  • the operating handle is fixed on the support of the switch, and implements reliable operations with the assistance of ratchet gears and springs.
  • the present invention may provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch. By utilizing energy storage operations, a relatively high switching force required by the high-capacity integrative three-position automatic changeover switch is satisfied.

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  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Structure Of Transmissions (AREA)
  • Gear Transmission (AREA)
  • Automatic Assembly (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Description

    BACKGROUND OF THE INVENTION 1. Field of the Invention
  • The present invention relates to the field of low-voltage electric appliances, and more particularly, to an operating system of automatic changeover switch.
    • 2. The Related Art
  • The existing operating system of an integrative automatic changeover switch mostly utilizes an electromagnet, a linear motor to or manually rotates and connects to the principal axis on the common power supply side or the spare power supply side, so as to drive the contact system to move to a closed position. Since the force generated by electromagnet is limited by volume, and direct manual operation can hardly result in large operating forces, the capacity of the changeover switch is limited. If a high-capacity integrative automatic changeover switch utilizes an existing electromagnet, a linear motor, or an operating system operated manually, the switch requires a large volume, and the reliability is relatively low.
  • The patent application with the publication number of CN101826404A discloses a three-gear switch mechanism of an electric appliance. The three-gear switch mechanism comprises: a first gear connected to a first contact, the rotation of the first gear drives the first contact to close to or open from a first power supply; a second gear connected to a second contact, the rotation of the second gear drives the second contact to close to or open from a second power supply, the first gear not contacting the second gear; and an active gear engages and drives the second gear to rotate, the rotation direction of the active gear being opposite to that of the first gear and the second gear. The active gear rotates along a second direction, drives the first gear to rotate along a first direction so that the first contact is separated from the first power supply from a closed position to an open position, drives the second gear to rotate along the first direction so that the second contact approaches the second power supply from an open position to a closed position. This switch mechanism is simple and reliable, utilizes different engagement conditions of gear set to achieve the switch of positions, leaves out the use of electromagnet, improves reliability while simplify the structure. The solution of this parent application is an incomplete three-gear solution, which has a high requirement on the processing technology and low reliability, and is used in the change of switch of non pre storage operational structure.
  • The patent application with the publication number CN101826403A discloses a double-storage operational mechanism with a single operational axis that is used in an automatic changeover switching appliance. The double-storage operational mechanism comprises: an operating handle and an operating motor that are positioned at a first side of a mounting plate of the operational mechanism of the automatic changeover switching appliance, the operating handle and the operating motor being set in a first operating cam principle axis and drives the rotation of the first operating cam principle axis; a drive gear that are positioned at a second side of the mounting plate of the operational mechanism, the drive gear connects the first operating cam principle axis and a second operating cam principle axis of the operational mechanism, the rotation of the first operating cam principle axis drives the rotation of the second operating cam principle axis via the drive gear; a storage mechanism that connects to the first operating cam principle axis via a first cam and connects to the second operating cam principle axis via a second cam, the energy generated from the rotations of the first operating cam principle axis and the second operating cam principle axis are respectively stored by driving the storage mechanism respectively with the first cam and the second cam. The solution of this patent application is a solution that utilizes two gears. This solution cannot assure the precise location of the double-storage operational mechanism, cannot assure that the storage operation of a second storage mechanism starts after the storage operation of a first storage mechanism ends, has a low reliability, and has a possibility of misoperation and gear stuck.
    • SUMMARY
  • The present invention intends to provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch.
  • According to an embodiment of the present invention, a gear set of an operating system of an automatic changeover switch is provided. The gear set is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, wherein the gear set comprises:
    • a conventional side drive gear connected to a drive axis of the conventional side operational mechanism and having a conventional side clutch mounted thereon;
    • a spare side drive gear connected to a drive axis of the spare side operational mechanism and having a spare side clutch mounted thereon;
    • a conventional side transmission gear and a spare side transmission gear that are both connected to a common axis, the conventional side transmission gear engaging the conventional side drive gear while the spare side transmission gear engaging the spare side drive gear;
    • a changeover gear that engages the conventional side transmission gear.
  • According to an embodiment of the present invention, a storage mechanism of an operating system of an automatic changeover switch is provided. The storage mechanism is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, wherein the storage mechanism comprises:
    • a gear set comprising: conventional side drive gear connected to a drive axis of the conventional side operational mechanism and having a conventional side clutch mounted thereon; a spare side drive gear connected to a drive axis of the spare side operational mechanism and having a spare side clutch mounted thereon; a conventional side transmission gear and a spare side transmission gear that are both connected to a common axis, the conventional side transmission gear engaging the conventional side drive gear while the spare side transmission gear engaging the spare side drive gear; a changeover gear that engages the conventional side transmission gear;
    • an operating handle and a motor that are connected to the common axis and drive the common axis;
    • a side plate that has a ratchet gear, a ratchet paw, and a spring mounted thereon, the ratchet gear engaging the ratchet paw, the spring connecting to an end of the ratchet paw.
  • According to an embodiment of the present invention, an operating system of an automatic changeover switch, the operating system connecting a conventional side power supply and a spare side power supply. The operating system comprising:
    • a conventional side operational mechanism that connects to the conventional side power supply, the conventional side operational mechanism comprising: a conventional side cam connected to a conventional side drive axis; a conventional side storage lever; a conventional side storage spring, one end of the conventional side storage spring being connected to the conventional side cam while the other end of the conventional side storage spring being connected to the conventional side storage lever; a conventional side four-bar linkage mechanism connected to the conventional side drive axis; a conventional side brake lever;
    • a spare side operational mechanism that connects to the spare side power supply, the spare side operational mechanism comprising: a spare side cam connected to a spare side drive axis; a spare side storage lever; a spare side storage spring, one end of the spare side storage spring is connected to the spare side cam while the other end of the spare side storage spring is connected to the spare side storage lever; a spare side four-bar linkage mechanism connected to the spare side drive axis; a spare side brake lever;
    • a gear set, the gear set comprising: a conventional side drive gear connected to the conventional side drive axis and has a conventional side clutch mounted thereon; a spare side drive gear connected to the spare side drive axis and has a spare side clutch mounted thereon; a conventional side transmission gear and a spare side transmission gear that are both connected to a common axis, the conventional side transmission gear engaging the conventional side drive gear while the spare side transmission gear engaging the spare side drive gear; a changeover gear that engages the conventional side transmission gear;
    • an operating handle and a motor that are connected to the common axis and drive the common axis;
    • a side plate that has a ratchet gear, a ratchet paw, and a spring mounted thereon, wherein the ratchet gear engaging the ratchet paw, the spring connecting to an end of the ratchet paw.
  • In an embodiment, the rotation of the operating handle and the motor drives the rotation of the common axis, while the rotation of the common axis drives the rotation of the gear set.
  • In an embodiment, the rotation of the operating handle and the motor drives the rotation of the common axis within the range of 0°-150° so as to store energy for the conventional side operational mechanism, and within the range of 150°-300° so as to store energy for the spare side operational mechanism.
  • In an embodiment, the operating handle and the motor being in the middle position so that the operating system is disconnected from the conventional side power supply and the spare side power supply; the rotation of the operating handle and the motor driving the rotation of the common axis, the common axis transferring the torque to the conventional side drive axis through the conventional side transmission gear and by driving the changeover gear and the conventional side drive gear, the rotation of the conventional side cam being driven by the conventional side drive axis, the conventional side cam driving the rotation of the conventional side storage lever and compressing the conventional side storage spring to store energy; when the common axis rotates to 150°, the energy storage operation of the conventional side operational mechanism is completed, and the conventional side clutch separates from the conventional side drive axis; the common axis continues to rotate, and transfers the torque to the spare side drive axis via the spare side transmission gear and the spare side drive gear, the spare side drive axis driving the spare side cam to rotate, while the spare side cam driving the spare side storage lever to rotate and compressing the spare side storage spring to store energy; when the common axis rotates to 300°, the energy storage operation of the spare side operational mechanism is completed, and the spare side clutch separates from the spare side drive axis.
  • In an embodiment, the conventional side cam and the spare side cam have different curves.
  • In an embodiment, the conventional side cam has a variable radius within the rotation range of 0°-150°, and has a constant radius within the rotation range of 150°-300°; the spare side cam has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°.
  • The present invention may provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch. By utilizing energy storage operations, a relatively high switching force required by the high-capacity integrative three-position automatic changeover switch is satisfied.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The above and other features, natures, and advantages of the invention will be apparent by the following description of the embodiments incorporating the drawings, wherein,
    • Figure 1 illustrates a structure diagram of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 2 illustrates a structure diagram of a gear set of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 3 illustrates a structure diagram of a side plate of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 4 illustrates a structure diagram of a conventional side operational mechanism of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 5 illustrates a structure diagram of a spare side operational mechanism of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 6 illustrates a structure diagram of a conventional side cam of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    • Figure 7 illustrates a structure diagram of a spare side cam of an operating system of an automatic changeover switch according to an embodiment of the present invention.
    DETAILED DESCRIPTION OF EMBODIMENTS
  • According to a first embodiment of the present invention, a gear set of an operating system of an automatic changeover switch is provided. As shown in Figure 2, this gear set is used in energy-storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other. The conventional side operational mechanism is connected to a conventional side power supply, while the spare side operational mechanism is connected to a spare side power supply. This gear set comprises:
    • a conventional side drive gear 108a connected to a drive axis of the conventional side operational mechanism and having a conventional side clutch 110a mounted thereon;
    • a spare side drive gear 108b connected to a drive axis of the spare side operational mechanism and having a spare side clutch 110b mounted thereon;
    • a conventional side transmission gear 109a and a spare side transmission gear 109b that are both connected to a common axis 111, the conventional side transmission gear 109a engages the conventional side drive gear 108a, while the spare side transmission gear 109b engages the spare side drive gear 108b;
    • a changeover gear 107 that engages the conventional side transmission gear 108a.
  • According to a second embodiment of the present invention, a storage mechanism of an operating system of an automatic changeover switch is provided. The storage mechanism is used for energy-storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other. The conventional side operational mechanism is connected to a conventional side power supply, while the spare side operational mechanism is connected to a spare side power supply. This storage mechanism comprises:
    • a gear set as shown in Figure 2 that comprises:
      • a conventional side drive gear 108a connected to a drive axis of the conventional side operational mechanism and having a conventional side clutch 110a mounted thereon;
      • a spare side drive gear 108b connected to a drive axis of the spare side operational mechanism and having a spare side clutch 110b mounted thereon;
      • a conventional side transmission gear 109a and a spare side transmission gear 109b that are both connected to a common axis 111, the conventional side transmission gear 109a engages the conventional side drive gear 108a, while the spare side transmission gear 109b engages the spare side drive gear 108b;
      • a changeover gear 107 that engages the conventional side transmission gear 108a;
    • an operating handle 112 and a motor 113 that are connected to and drive the common axis 111, and are shown in Figure 1;
    • a side plate 114 that has a ratchet gear 115, a ratchet paw 116, and a spring 117 mounted thereon, where the ratchet gear 115 engages the ratchet paw 116, where the spring 117 connects to an end of the ratchet paw 116, where the side plate 114, the ratchet gear 115, the ratchet paw 116, and the spring 117 are shown in Figure 3.
  • According to a third embodiment of the present invention, an operating system of an automatic changeover switch is disclosed. As shown in Figure 1, the operating system connects a conventional side power supply and a spare side power supply. The operating system comprises:
    • a conventional side operational mechanism that connects to the conventional side power supply and comprises (the structure of the conventional side operational mechanism is shown in Figure 4):
      • a conventional side cam 101 connected to a conventional side drive axis 118;
      • a conventional side storage lever 104a;
      • a conventional side storage spring, one end of the conventional side storage spring is connected to the conventional side cam 101 while the other end of the conventional side storage spring is connected to the conventional side storage lever 104a, where the conventional side storage spring is not shown in the figures, where the position of the conventional side storage spring corresponds to the position of a spare side storage spring 103b;
      • a conventional side four-bar linkage mechanism 105a connected to the conventional side drive axis 118;
      • a conventional side brake lever 106a;
    • a spare side operational mechanism that connects to the spare side power supply and comprises (the structure of the spare side operational mechanism is shown in Figure 4):
      • a spare side cam 102 connected to a spare side drive axis 119;
      • a spare side storage lever 104b;
      • a spare side storage spring 103b, one end of the spare side storage spring 103b is connected to the spare side cam 102 while the other end of the spare side storage spring 103b is connected to the spare side storage lever 104b;
      • a spare side four-bar linkage mechanism 105b connected to the spare side drive axis 119;
      • a spare side brake lever 106b;
    • a gear set as shown in Figure 2 that comprises:
      • a conventional side drive gear 108a connected to the conventional side drive axis 118 and has a conventional side clutch 110a mounted thereon;
      • a spare side drive gear 108b connected to the spare side drive axis 119 and has a spare side clutch 110b mounted thereon;
      • a conventional side transmission gear 109a and a spare side transmission gear 109b that are both connected to a common axis 111, the conventional side transmission gear 109a engages the conventional side drive gear 108a, while the spare side transmission gear 109b engages the spare side drive gear 108b;
      • a changeover gear 107 that engages the conventional side transmission gear 108a;
    • an operating handle 112 and a motor 113 that are connected to and drive the common axis 111, and are shown in Figure 1;
    • a side plate 114 that has a ratchet gear 115, a ratchet paw 116, and a spring 117 mounted thereon, where the ratchet gear 115 engages the ratchet paw 116, where the spring 117 connects to an end of the ratchet paw 116, where the side plate 114, the ratchet gear 115, the ratchet paw 116, and the spring 117 are shown in Figure 3.
  • The rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111, while the rotation of the common axis 111 drives the rotation of the gear set. The rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111 within the range of 0°-150° so as to store energy for the conventional side operational mechanism, and within the range of 150°-300° so as to store energy for the spare side operational mechanism.
  • The operating handle 112 and the motor 113 are in the middle position so that the operating system is disconnected from the conventional side power supply and the spare side power supply. The rotation of the operating handle 112 and the motor 113 drives the rotation of the common axis 111. The common axis 111 transfers the torque to the conventional side drive axis 118 through the conventional side transmission gear 109a and by driving the changeover gear 108 and the conventional side drive gear 108a. The rotation of the conventional side cam 101 is driven by the conventional side drive axis 118. The conventional side cam 101 drives the rotation of the conventional side storage lever 104a, and compress the conventional side storage spring to store energy. When the common axis 111 rotates to 150°, the energy storage operation of the conventional side operational mechanism is completed, and the conventional side clutch 110a separates from the conventional side drive axis 118. The common axis 111 continues to rotate, and transfers the torque to the spare side drive axis 119 via the spare side transmission gear 109b and the spare side drive gear 108b. The spare side drive axis 119 drives the spare side cam 102 to rotate, while the spare side cam 102 drives the spare side storage lever 104b to rotate and compress the spare side storage spring 103b to store energy. When the common axis 111 rotates to 300°, the energy storage operation of the spare side operational mechanism is completed, and the spare side clutch 110b separates from the spare side drive axis 119.
  • The conventional side cam 101 and the spare side cam 102 are designed as having different curves so as to implement the aforesaid process. The conventional side cam 101 has a variable radius within the rotation range of 0°-150°, and has a constant radius within the rotation range of 150°-300°. The spare side cam 102 has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°. Figure 6 and Figure 7 illustrate structure diagrams of a conventional side cam and a spare side cam, respectively. The radius of base circle of the conventional side cam is not identical to that of the spare side cam so that the cam may be precisely located when the storage spring is released.
  • In summation, according to the operational mechanism of the present invention, when the drive axis having a cam stored thereon rotates, the cam rotates the storage lever via the roller on the storage lever and drives the leader to compress the spring so as to store energy. The conventional side cam is different from the spare side cam. The conventional side cam has a variable radius within the rotation range of 0°-150° so store energy at the conventional side spring, and has a constant radius within the rotation range of 150°-300°. The spare side cam 102 has a constant radius within the rotation range of 0°-150°, and has a variable radius within the rotation range of 150°-300°. Thus, rotation of one circle may store energy for two operational mechanisms. The radius of base circle of the conventional side cam is not identical to that of the spare side cam so that the cam may be precisely located when the storage spring is released.
  • According to the gear set of the present invention, when the operating handle or motor mounted on the common axis rotates, the conventional side is switched via one gear, while other gears drives the drive axis of the conventional side and spare side operational mechanisms to rotate. The drive axis has a cam mounted thereon. When the cam rotates within 0°-150°, the energy of the conventional side operational mechanism is stored. After the energy storage of the conventional side operational mechanism is completed, the clutch device mounted at the conventional side separates the drive axis of the conventional side operational mechanism from the common axis. The common axis continues to rotate within 150°-300° so as to complete the energy storage operation of the spare side operational mechanism. Similarly, the clutch device mounted at the spare side separates the drive axis of the spare side operational mechanism from the common axis. Thus, rotation of one circle may store energy for two operational mechanisms. The gear set has a certain speed ratio so as to reduce operational forces.
  • The present invention may implement the storage operations of two independent energy storage operational mechanisms with one operating handle or motor. The operating handle is fixed on the support of the switch, and implements reliable operations with the assistance of ratchet gears and springs.
  • The present invention may provide a reliable operating system for a high-capacity integrative three-position automatic changeover switch. By utilizing energy storage operations, a relatively high switching force required by the high-capacity integrative three-position automatic changeover switch is satisfied.

Claims (8)

  1. A gear set of an operating system of an automatic changeover switch, where the gear set is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, characterized in that the gear set comprises:
    a conventional side drive gear (108a) connected to a drive axis of the conventional side operational mechanism and having a conventional side clutch (110a) mounted thereon;
    a spare side drive gear (108b) connected to a drive axis of the spare side operational mechanism and having a spare side clutch (110b) mounted thereon;
    a conventional side transmission gear (109a) and a spare side transmission gear (109b) that are both connected to a common axis (111), the conventional side transmission gear (109a) engaging the conventional side drive gear (108a) while the spare side transmission gear (109b) engaging the spare side drive gear (108b); and
    a changeover gear (107) that engages the conventional side transmission gear (109a).
  2. A storage mechanism of an operating system of an automatic changeover switch, where the storage mechanism is used in energy storage operations of a conventional side operational mechanism and a spare side operational mechanism that are independent from each other, the conventional side operational mechanism being connected to a conventional side power supply while the spare side operational mechanism being connected to a spare side power supply, characterized in that the storage mechanism comprises:
    a gear set as claimed in claim 1, the mechanism further comprising:
    an operating handle (112) and a motor (113) that are connected to the common axis (111) and drive the common axis (111);
    a side plate (114) that has a ratchet gear (115), a ratchet paw (116), and a spring (117) mounted thereon, the ratchet gear (115) engaging the ratchet paw (116), the spring (117) connecting to an end of the ratchet paw (116).
  3. An operating system of an automatic changeover switch, the operating system connecting a conventional side power supply and a spare side power supply, characterized in that the operating system comprises:
    a conventional side operational mechanism that connects to the conventional side power supply, the conventional side operational mechanism comprising:
    a conventional side cam (101) connected to a conventional side drive axis (118);
    a conventional side storage lever (104a);
    a conventional side storage spring, one end of the conventional side storage spring being connected to the conventional side cam (101) while the other end of the conventional side storage spring being connected to the conventional side storage lever (104a);
    a conventional side four-bar linkage mechanism (105a) connected to the conventional side drive axis (118);
    a conventional side brake lever (106a);
    a spare side operational mechanism that connects to the spare side power supply, the spare side operational mechanism comprising:
    a spare side cam (102) connected to a spare side drive axis (119);
    a spare side storage lever (104b);
    a spare side storage spring (103b), one end of the spare side storage spring (103b) is connected to the spare side cam (102) while the other end of the spare side storage spring (103b) is connected to the spare side storage lever (104b);
    a spare side four-bar linkage mechanism (105b) connected to the spare side drive axis (119);
    a spare side brake lever (106b);
    a gear set as claimed in claim 1, the system further comprising:
    an operating handle (112) and a motor (113) that are connected to the common axis (111) and drive the common axis (111);
    a side plate (114) that has a ratchet gear (115), a ratchet paw (116), and a spring (117) mounted thereon, wherein the ratchet gear (115) engaging the ratchet paw (116), the spring (117) connecting to an end of the ratchet paw (116).
  4. The operating system of an automatic changeover switch as recited in claim 3, characterized in that the rotation of the operating handle (112) and the motor (113) drives the rotation of the common axis (111), while the rotation of the common axis (111) drives the rotation of the gear set.
  5. The operating system of an automatic changeover switch as recited in claim 4, characterized in that the rotation of the operating handle (112) and the motor (113) drives the rotation of the common axis (111) within the range of 0°-150° so as to store energy for the conventional side operational mechanism, and within the range of 150°-300° so as to store energy for the spare side operational mechanism.
  6. The operating system of an automatic changeover switch as recited in claim 5, characterized in that,
    the operating handle (112) and the motor (113) being in the middle position so that the operating system is disconnected from the conventional side power supply and the spare side power supply;
    the rotation of the operating handle (112) and the motor (113) driving the rotation of the common axis (111), the common axis (111) transferring the torque to the conventional side drive axis (118) through the conventional side transmission gear (109a) and by driving the changeover gear (108) and the conventional side drive gear (108a), the rotation of the conventional side cam (101) being driven by the conventional side drive axis (118), the conventional side cam (101) driving the rotation of the conventional side storage lever (104a) and compressing the conventional side storage spring to store energy; when the common axis (111) rotates to 150°, the energy storage operation of the conventional side operational mechanism is completed, and the conventional side clutch (110a) separates from the conventional side drive axis (118);
    the common axis (111) continues to rotate, and transfers the torque to the spare side drive axis (119) via the spare side transmission gear (109b) and the spare side drive gear (108b), the spare side drive axis (119) driving the spare side cam (102) to rotate, while the spare side cam (102) driving the spare side storage lever (104b) to rotate and compressing the spare side storage spring (103b) to store energy; when the common axis (111) rotates to 300°, the energy storage operation of the spare side operational mechanism is completed, and the spare side clutch (110b) separates from the spare side drive axis (119).
  7. The operating system of an automatic changeover switch as recited in claim 6, characterized in that the conventional side cam (101) and the spare side cam (102) having different curves.
  8. The operating system of an automatic changeover switch as recited in claim 7, characterized in that
    the conventional side cam (101) having a variable radius within the rotation range of 0°-150°, and having a constant radius within the rotation range of 150°-300°,
    the spare side cam (102) having a constant radius within the rotation range of 0°-150°, and having a variable radius within the rotation range of 150°-300°.
EP12851672.1A 2011-11-25 2012-10-09 Operating system for automatic turn-over switch and gear set Active EP2784794B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12851672T PL2784794T3 (en) 2011-11-25 2012-10-09 Operating system for automatic turn-over switch and gear set

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110383503.8A CN103137347B (en) 2011-11-25 2011-11-25 Operation system of automatic diverter switches and gear set
PCT/CN2012/082614 WO2013075555A1 (en) 2011-11-25 2012-10-09 Operating system for automatic turn-over switch and gear set

Publications (3)

Publication Number Publication Date
EP2784794A1 EP2784794A1 (en) 2014-10-01
EP2784794A4 EP2784794A4 (en) 2015-08-12
EP2784794B1 true EP2784794B1 (en) 2016-11-23

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EP12851672.1A Active EP2784794B1 (en) 2011-11-25 2012-10-09 Operating system for automatic turn-over switch and gear set

Country Status (7)

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EP (1) EP2784794B1 (en)
CN (1) CN103137347B (en)
BR (1) BR112014012530B1 (en)
ES (1) ES2606551T3 (en)
MY (1) MY170762A (en)
PL (1) PL2784794T3 (en)
WO (1) WO2013075555A1 (en)

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CN103681022B (en) * 2013-12-11 2016-01-27 浙江电器开关有限公司 A kind of frame breaker energy storage transmission device
CN104577856A (en) * 2014-12-31 2015-04-29 安徽宇腾真空电气有限责任公司 Mining vacuum feeder switch device with isolating fractures
CN106206152B (en) * 2016-08-25 2018-02-02 南昌市光辉电力科技有限公司 A kind of dual power supply self-switchover takes control metering device
CN107564749A (en) * 2017-09-20 2018-01-09 陕西得瑞电力设备有限责任公司 A kind of high-precision three-station electric powder operation device
CN107546044A (en) * 2017-10-17 2018-01-05 北京明日电器设备有限责任公司 A kind of stored energy operating mechanism of Large Copacity double power supply automatic transfer switch
CN208271796U (en) * 2018-04-17 2018-12-21 西门子股份公司 The driving assembly and its disconnecting switch and switchgear of disconnecting switch
CN108612821B (en) * 2018-07-02 2020-12-04 安徽思源三轻智能制造有限公司 Energy storage structure and gearbox provided with same
CN109494130A (en) * 2019-01-07 2019-03-19 江苏洛凯机电股份有限公司 A kind of breaker energy storage mechanism
CN110070998B (en) * 2019-05-28 2024-07-23 乐清东海电器有限公司 Double-layer gear transmission device of automatic change-over switch
CN112652497B (en) * 2020-12-08 2024-01-09 泰康电子有限公司 Electrodeless roller switch and automobile steering wheel assembly
CN112233920B (en) * 2020-12-11 2021-05-07 广州英凡电气科技有限公司 Change-over switch device for standby power supply
CN113074799B (en) * 2021-03-26 2023-04-14 天津津滨威立雅水业有限公司 Water level dredging alarm device
CN113851341B (en) * 2021-08-20 2023-02-28 平高集团有限公司 Three-station operating mechanism and switch cabinet
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CN114440070B (en) * 2021-12-30 2024-04-02 重庆特斯联智慧科技股份有限公司 Big data park enabling platform Internet of things management terminal equipment

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Also Published As

Publication number Publication date
EP2784794A1 (en) 2014-10-01
BR112014012530B1 (en) 2021-04-06
CN103137347B (en) 2015-04-08
ES2606551T3 (en) 2017-03-24
EP2784794A4 (en) 2015-08-12
BR112014012530A2 (en) 2017-06-06
CN103137347A (en) 2013-06-05
MY170762A (en) 2019-08-28
PL2784794T3 (en) 2017-06-30
WO2013075555A1 (en) 2013-05-30

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