WO2016086747A1 - 断路器锁定装置 - Google Patents

断路器锁定装置 Download PDF

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Publication number
WO2016086747A1
WO2016086747A1 PCT/CN2015/093751 CN2015093751W WO2016086747A1 WO 2016086747 A1 WO2016086747 A1 WO 2016086747A1 CN 2015093751 W CN2015093751 W CN 2015093751W WO 2016086747 A1 WO2016086747 A1 WO 2016086747A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
pressure plate
circuit breaker
locking device
base
Prior art date
Application number
PCT/CN2015/093751
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
罗旌香
杨颖杰
王克明
马世刚
Original Assignee
浙江正泰电器股份有限公司
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 浙江正泰电器股份有限公司 filed Critical 浙江正泰电器股份有限公司
Priority to MYPI2017701994A priority Critical patent/MY189308A/en
Priority to EP15865299.0A priority patent/EP3229257B1/de
Publication of WO2016086747A1 publication Critical patent/WO2016086747A1/zh
Priority to SA517381637A priority patent/SA517381637B1/ar

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement

Definitions

  • the utility model relates to the field of low-voltage electrical appliances, in particular to a circuit breaker locking device.
  • the switch In the high-current power supply site, the switch should be closed after the fault trips, and the switch must be manually unlocked after the fault is removed.
  • some circuit breakers do not have an effective locking device at present, so that the mechanism can immediately store energy after the circuit breaker fails to trip, so that the opening half shaft can be used to turn the pressure plate of the controller base back to make the circuit breaker can be closed.
  • the circuit breaker When the system is faulty, the circuit breaker is closed, which affects the safety of the operator and the safety of the customer's electrical equipment.
  • there are also locking devices on the existing partial circuit breakers but the structure is complicated, resulting in a decrease in the stability of the locking portion, thereby reducing the reliability of the locking device.
  • the purpose of the utility model is to overcome the defects of the prior art and provide a circuit breaker locking device with a firm locking structure, stable operation process and simple mechanical structure.
  • a circuit breaker locking device comprising an execution lever 1 and a pressure plate 2, wherein the execution lever 1 hole shaft is rotatably mounted in a base 3 of the circuit breaker, and an elastic member is disposed between one end of the execution lever 1 and the base 3. 111, the other end of the execution lever 1 is provided with a locking end 120 which is lockably connected to the locking portion 210 on the side of the pressure plate 2.
  • the pressing plate 2 is mounted in the base 3 and rotatably rotatably relative to the base 3.
  • the locking portion 210 on one side of the pressing plate 2 includes an unlocking surface 211 and a locking surface 212 respectively corresponding to the locking end 120, and the unlocking surface 211
  • a sliding step 213 is disposed adjacent to the locking surface 212, and the other side of the pressure plate 2 is provided with a contact portion 220 that can be in contact with the circuit breaker operating mechanism.
  • the upper portion of the pressure plate 2 is further provided with a magnetic wave that can drive the pressure plate 2 to swing. 5.
  • the magnetic flux 5 can push the pressure plate 2 to swing, so that the locking end 120 disposed in the unlocking surface 211 slides along the sliding step 213 to the lock under the force of the elastic member 111.
  • the platen 2 is locked within the facet 212, while the contact portion 220 that oscillates with the platen 2 can limit the operating mechanism from being resettable.
  • the locking end 120 includes a first active surface 121 and a second active surface 122 that are connected to each other in a V-shaped structure, and the second active surface 122 is connected to the end of the execution lever 1 and parallel to the execution lever 1
  • the working end 123 formed at the junction of the first active surface 121 and the second active surface 122 can be in contact with the locking surface 212.
  • the first active surface 121 can be connected in oblique contact with the corresponding side of the sliding step 213, so that when locked
  • the locking surface 212, the first acting surface 121 and the side of the sliding step 213 may form a triangular structure.
  • a side of the sliding step 213 corresponding to the first active surface 121 is provided with a sloped surface 213b that can be matched with the first active surface 121.
  • the inclined surface 213b and the locking surface 212 are obtuse.
  • top of the sliding step 213 is provided with a circular arc surface 213a that can be in sliding contact with the bottom of the locking end 120.
  • the pressure plate 2 is mounted on the bracket 4 in the base 3.
  • the two sides of the pressure plate 2 respectively extend with a locking portion 210 and a contact portion 220.
  • the middle portion of the pressure plate 2 is provided with a driving portion corresponding to the magnetic flux 5.
  • the driving portion 240 further extends from the rotating mounting portion 230.
  • the rotating mounting portion 230 is respectively provided with a mounting circular table 231 rotatably connected to the hole of the bracket 4 corresponding to the two sides of the pressure plate 2, and the magnetic flux 5 when the circuit breaker is broken.
  • the driving portion 240 can be pushed to swing the pressure plate 2 along the mounting round table 231 and downward with respect to the bracket 4.
  • the mounting round table 231 is mounted with a return spring 232 that can drive the pressure plate 2 back to the initial position, and both ends of the return spring 232 are respectively abutted against the pressure plate 2 and the bracket 4.
  • the two ends of the execution lever 1 are respectively a reset driving end 110 corresponding to the elastic member 111 and a locking end 120 corresponding to the pressing plate 2, and the reset driving end 110 can store the elastic member 111 when the device is reset. Therefore, the locking end 120 is slid back from the locking surface 212 to the unlocking surface 211, and the middle portion of the performing lever 1 is further provided with a fulcrum mounting hole 130 for rotationally connecting with the sidewall hole shaft of the base 3, and the fulcrum mounting hole is A shaft pin 131 is mounted.
  • the elastic member 111 may be a spring disposed between the end of the execution lever 1 and the base 3, and the bottom of one end of the execution lever 1 is provided with a circular table 112 for limiting the fixed spring.
  • the contact portion 220 is an L-shaped structure including horizontal baffles 221 that are vertically connected to each other. And a vertical baffle 222, the vertical baffle 222 is perpendicular to a side wall of the pressure plate 2, the horizontal baffle 221 is parallel to the side surface of the pressure plate 2, and the horizontal baffle 221 is rotatable with the pressure plate 2 so that The tripping half shaft of the blocking operating mechanism is restored to the switchable position.
  • the locking portion 210 is further provided with a baffle 214 corresponding to a sidewall of the pressure plate 2, and a baffle 215 is disposed between the end of the baffle 214 corresponding to the locking surface 212 and the sidewall of the pressure plate 2.
  • the connecting baffle 215, the baffle 214, a side wall of the pressure plate 2 and a side wall of the sliding step 213 together form a groove structure 216 which can be disposed corresponding to the locking end 120.
  • the circuit breaker locking device of the utility model realizes the resetting of the lever and the platen lock preventing operation mechanism when the circuit breaker is broken through the locking portion and the locking end, and the mechanical structure of the locking device is simple, thereby improving the reliability and stability of the locking process.
  • the locking surface and the sliding step through the locking surface and the sliding step, a stable and firm locking connection structure between the locking end and the locking surface is ensured, and the fastening device is improved in firmness.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic structural view of an execution lever of the present invention
  • Figure 3 is a schematic structural view of the pressure plate of the present invention.
  • Figure 5 is a cross-sectional view showing a portion of the structure taken along the line A-A in the dotted line of Figure 4;
  • Figure 6 is a front view showing the locked state of the utility model
  • Figure 7 is a cross-sectional view showing a portion of the structure taken along the line B-B in the broken line of Figure 6.
  • Embodiments of the present invention will be described below with reference to FIGS. 1 to 7 to further illustrate a specific embodiment of the circuit breaker locking device of the present invention.
  • the circuit breaker locking device of the present invention is not limited to the description of the following embodiments.
  • FIG. 1 is a schematic structural view of the utility model, the circuit breaker locking device of the present invention includes an execution lever 1 and a pressure plate 2, and the execution lever 1 hole shaft is rotatably installed in the base 3 of the circuit breaker, and is executed.
  • An elastic member 111 is disposed between one end of the lever 1 and the base 3, and the other end of the execution lever 1 is provided with a locking end 120 that is lockably coupled to the locking portion 210 on the side of the pressure plate 2.
  • the pressure plate 2 is mounted on The base 3 is rotatably swingable relative to the base 3, and the locking portion 210 on the side of the pressure plate 2 as shown in FIG.
  • the 3 includes an unlocking surface 211 and a locking surface 212 respectively corresponding to the locking end 120, and the unlocking surface 211 and the locking portion
  • the surface 212 is adjacently disposed with a sliding step 213 in the middle, and the other side of the pressure plate 2 is provided with a contact portion 220 that can be in contact with the circuit breaker operating mechanism.
  • the upper portion of the pressure plate 2 is further provided with a magnetic flux 5 for driving the pressure plate 2 to swing.
  • the magnetic flux 5 can push the pressure plate 2 to swing, so that the locking end 120 disposed in the unlocking surface 211 slides along the sliding step 213 to the locking surface 212 under the force of the elastic member 111 to release the clamping plate 2, and simultaneously
  • the contact portion 220 that swings with the pressure plate 2 can limit the closing position of the operating mechanism's opening half shaft to the highest position.
  • the utility model adopts the implementation of the lever locking pressure plate, so that after the circuit breaker is faulted, the opening half shaft of the operating mechanism can not be restored to the highest point to complete the closing, so that the user can safely operate the circuit breaker after the fault is found and the fault is eliminated, and the closing is ensured. The safety of the operator and the safe operation of the power supply equipment.
  • the base 3 is further provided with a bracket 4 for clamping the mounting platen 2, and the pressure plate 2 is rotatably mounted in the bracket 4 and disposed corresponding to the magnetic flux 5, and the magnetic flux 5 may be in the event of a breaker failure.
  • the pressure plate 2 Upon receiving the controller trip command, the pressure plate 2 is pushed to swing relative to the bracket 4 to lock the locking end 120 to the locking surface 212.
  • the bracket not only facilitates the assembly of the locking device, but also provides stable support when the pressure plate is swung and rotated to improve the stability and reliability of the locking process.
  • FIG. 2 is a schematic view showing the structure of the lever 1 of the present invention.
  • the two ends of the actuating lever 1 are respectively a reset driving end 110 corresponding to the elastic member 111 and a locking end 120 corresponding to the pressing plate 2,
  • the locking end 120 includes a first active surface 121 and a second active surface 122 that are interconnected in a V-shaped configuration, the second active surface 122 being coupled to the end of the actuator lever 1 and disposed parallel to the execution lever 1 and first
  • the working end 123 formed at the junction of the active surface 121 and the second active surface 122 can be in contact with the locking surface 212.
  • the first active surface 121 can be in contact with the corresponding side of the sliding step 213, so that the locking surface 212 is locked when locked.
  • the side of the active surface 121 and the sliding step 213 may form a triangular structure.
  • the locking end of the V-shaped structure realizes that when the lever locking platen is executed, the locking end, the locking surface and the sliding step form a stable triangular structure, so that the locked pressure plate is less likely to sway and the stability of the locking device is improved.
  • the top of the sliding step 213 may be provided with a circular arc surface 213a for sliding the locking end 120 from the unlocking surface 211 to the locking surface 212.
  • the first active surface 121 of the V-shaped structure of the present invention and the sliding step 131 are inclined to contact. Therefore, the first active surface 121 can stably contact the arcuate surface 213a without sliding, which ensures the stability of the locking connection.
  • the reset driving end 110 The resilient member 111 can be energized upon resetting of the device to cause the locking end 120 to slide back from the locking surface 212 to the unlocking surface 211. It is easy to think that after the circuit breaker is faulted, the locking device is in the locked state. At this time, the elastic member 111 is in the release state to provide the locking force of the locking end 120 and the locking surface 212. If the fault is removed, the locking device can be manually reset. In a manner, the reset driving end 110 is pressed down, at which time the locking end 120 moves to the unlocking surface 211 and the elastic member 111 is again in the energy storage state.
  • the middle portion of the execution lever 1 is further provided with a fulcrum mounting hole 130 for rotational connection with the side wall hole shaft of the base 3, and the pivot pin 131 can be mounted in the fulcrum mounting hole.
  • the stable rotation of the actuating lever and the base side of the base ensures the stability of the locking end of the actuating lever when driven by the reset drive end, improving the reliability of performing the lever swinging action.
  • the elastic member 111 may be a spring disposed between the end of the execution lever 1 and the base 3, and the bottom of one end of the execution lever 1 is provided with a circular table 112 for limiting the fixed spring.
  • the spring structure is simple and easy to install, which not only improves the installation efficiency of the locking device, but also ensures the stability of the device during locking and resetting.
  • FIG. 3 is a schematic view showing the structure of the pressure plate 2 of the present invention.
  • the pressure plate 2 is mounted on the bracket 4 in the base 3.
  • the two sides of the pressure plate 2 respectively extend with a locking portion 210 and a contact portion 220, and the pressure plate 2
  • a driving portion 240 corresponding to the magnetic flux 5 is disposed in the middle portion, and the driving portion 240 further extends from the rotating mounting portion 230.
  • the rotating mounting portion 230 is respectively disposed on the two sides of the pressure plate 2 to be rotatably connected to the shaft of the bracket 4
  • the mounting truncated cone 231 when the circuit breaker fails, the magnetic flux 5 can push the driving portion 240 to swing the pressure plate 2 along the mounting round table 231 and downward with respect to the bracket 4.
  • the locking portion 210 includes an unlocking surface 211 and a locking surface 212 disposed adjacent to each other, and a sliding step 213 is disposed between the unlocking surface 211 and the locking surface 212.
  • the top of the sliding step 213 is provided with a circular arc surface 213a that can be in sliding contact with the bottom of the locking end 120.
  • the circular arc surface makes the process of sliding the locking end from the unlocking surface to the locking surface easier and smoother, ensuring that the operation of the lever locking platen does not fail, thereby improving the reliability of the device.
  • the locking portion 210 is further provided with a baffle 214 corresponding to a sidewall of the pressure plate 2, and a baffle 215 is disposed between the end of the baffle 214 corresponding to the locking surface 212 and the sidewall of the pressure plate 2,
  • the connecting baffle 215, the baffle 214, a side wall of the pressure plate 2 and a side wall of the sliding step 213 together form a groove structure 216 which can be disposed corresponding to the locking end 120.
  • the baffle can be used to position the locking end to prevent the locking end from failing during the locking process, thereby improving the stability of the locking device, and forming a closed structure groove structure around the locking surface, thereby improving the reliability during locking.
  • the contact portion 220 is an L-shaped structure.
  • the horizontal baffle 221 and the vertical baffle 222 are vertically connected to each other, and the vertical baffle 222 is perpendicular to a side wall of the pressure plate 2, and the horizontal baffle 221 is parallel to the side surface of the pressure plate 2, the horizontal block
  • the plate 221 is rotatable with the pressure plate 2 to block the opening half of the operating mechanism from returning to the highest position, that is, the closing position.
  • the L-shaped contact portion has a simple structure for easy processing and installation, and the horizontal baffle can effectively block the operation mechanism resetting to improve the working performance of the locking device.
  • FIG. 4 a front view of the initial state of the present invention is shown.
  • the actuator lever 1 is mounted on the side of the base 3 via the axle pin 131, and the locking end 120 of the lever 1 and the locking portion 210 of the pressure plate 2 mounted on the bracket 4 are executed.
  • Contact connection When the initial state of the utility model is that the circuit breaker has not failed so that the locking device does not trigger the locking, the pressure plate 2 is in a horizontal position, so that the contact portion 220 fails to block the normal closing of the opening half shaft of the operating mechanism.
  • 5 is a partial structural cross-sectional view taken along the line AA in the dotted line of FIG. 4.
  • the elastic member 111 of the reset driving end 110 of the lever 1 is in an energy storage state, and the locking end 120 of the other end of the lever 1 is placed on the unlocking surface.
  • the second active surface 122 of the locking end 120 is located on a side wall of the sliding step 213 corresponding to the unlocking surface 211.
  • FIG. 6 is a schematic front structural view of the locked state of the present invention.
  • the mounting circular table 231 is mounted with a return spring 232 that can drive the pressure plate 2 back to the initial position, and the two ends of the return spring 232 and the pressure plate 2 are respectively Connected to the bracket 4.
  • the pressure plate can bring the contact portion back to the initial position under the resetting force of the return spring, so that the opening half shaft of the operating mechanism can be restored to the highest position, that is, the closing position ensures the reset.
  • the rear platen can be returned to the exact initial position, improving the accuracy of the device.
  • FIG. 7 is a cross-sectional view showing a portion of the structure in FIG. 6 along the BB direction.
  • the sliding action of the locking end 120 on the elastic member 111 is degraded due to the sliding of the sliding step 213 with the pressing plate 2, so that the second acting surface 122 is lost.
  • the locking is completed in the locking surface 212.
  • the working end 123 is in contact with the locking surface 212 while the locking surface 212, the first acting surface 121 and the side of the sliding step 213 can form a triangular structure.
  • the sliding step 213 is provided with a sloped surface 213b that can be mated to the first active surface 121 in a matching contact with the first active surface 121.
  • the inclined surface 213b and the locking surface 212 are obtuse.
  • the resetting drive end 110 can be manually pressed to re-storage the elastic member 111 while the locking end 120 is away from the locking surface 212. After the locking plate 120 is locked by the locking end 120, The initial position is restored by the restoring force of the return spring 232, and the locking end 120 is again placed in the unlocking surface 211 to complete the reset.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
PCT/CN2015/093751 2014-12-01 2015-11-04 断路器锁定装置 WO2016086747A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
MYPI2017701994A MY189308A (en) 2014-12-01 2015-11-04 Circuit breaker with locking device
EP15865299.0A EP3229257B1 (de) 2014-12-01 2015-11-04 Schutzschaltersperrvorrichtung
SA517381637A SA517381637B1 (ar) 2014-12-01 2017-06-01 قاطع دائرة ذو وسيلة إغلاق

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420743118.9 2014-12-01
CN201420743118.9U CN204348653U (zh) 2014-12-01 2014-12-01 断路器锁定装置

Publications (1)

Publication Number Publication Date
WO2016086747A1 true WO2016086747A1 (zh) 2016-06-09

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ID=53231905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/093751 WO2016086747A1 (zh) 2014-12-01 2015-11-04 断路器锁定装置

Country Status (5)

Country Link
EP (1) EP3229257B1 (de)
CN (1) CN204348653U (de)
MY (1) MY189308A (de)
SA (1) SA517381637B1 (de)
WO (1) WO2016086747A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112771641A (zh) * 2019-06-25 2021-05-07 Abb瑞士股份有限公司 用于断路器的电动机操作器以及制造电动机操作器的方法
CN114242537A (zh) * 2021-12-06 2022-03-25 平高集团有限公司 一种断路器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204348653U (zh) * 2014-12-01 2015-05-20 浙江正泰电器股份有限公司 断路器锁定装置
CN113066702B (zh) * 2021-03-29 2024-04-05 常州市瑾瑜精密科技有限公司 一种紧凑型接地电路断路器及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5714940A (en) * 1996-09-26 1998-02-03 Eaton Corporation Bell alarm for system power breaker
CN1226074A (zh) * 1998-02-09 1999-08-18 施耐德电器公司 具有电气故障指示装置的电路断路器的跳闸装置
CN202210497U (zh) * 2011-08-09 2012-05-02 上海良信电器股份有限公司 断路器用锁定及解锁机构
CN204348653U (zh) * 2014-12-01 2015-05-20 浙江正泰电器股份有限公司 断路器锁定装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5714940A (en) * 1996-09-26 1998-02-03 Eaton Corporation Bell alarm for system power breaker
CN1226074A (zh) * 1998-02-09 1999-08-18 施耐德电器公司 具有电气故障指示装置的电路断路器的跳闸装置
CN202210497U (zh) * 2011-08-09 2012-05-02 上海良信电器股份有限公司 断路器用锁定及解锁机构
CN204348653U (zh) * 2014-12-01 2015-05-20 浙江正泰电器股份有限公司 断路器锁定装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3229257A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112771641A (zh) * 2019-06-25 2021-05-07 Abb瑞士股份有限公司 用于断路器的电动机操作器以及制造电动机操作器的方法
CN112771641B (zh) * 2019-06-25 2024-05-17 Abb瑞士股份有限公司 用于断路器的电动机操作器以及制造电动机操作器的方法
CN114242537A (zh) * 2021-12-06 2022-03-25 平高集团有限公司 一种断路器
CN114242537B (zh) * 2021-12-06 2023-12-01 平高集团有限公司 一种断路器

Also Published As

Publication number Publication date
EP3229257A4 (de) 2018-07-25
CN204348653U (zh) 2015-05-20
MY189308A (en) 2022-02-03
EP3229257B1 (de) 2020-05-13
EP3229257A1 (de) 2017-10-11
SA517381637B1 (ar) 2021-03-18

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