EP3483912A1 - Elektrisch leitfähige schleife eines schutzschalters - Google Patents

Elektrisch leitfähige schleife eines schutzschalters Download PDF

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Publication number
EP3483912A1
EP3483912A1 EP17823580.0A EP17823580A EP3483912A1 EP 3483912 A1 EP3483912 A1 EP 3483912A1 EP 17823580 A EP17823580 A EP 17823580A EP 3483912 A1 EP3483912 A1 EP 3483912A1
Authority
EP
European Patent Office
Prior art keywords
inlet
outlet
contact group
contact
circuit breaker
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
EP17823580.0A
Other languages
English (en)
French (fr)
Other versions
EP3483912A4 (de
Inventor
Xiang Gu
Guping JIANG
Zhili JIANG
Wennan HE
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
Noark Electrics Shanghai Co Ltd
SEARI Electric Technology Co Ltd
Original Assignee
Zhejiang Chint Electrics Co Ltd
Noark Electrics Shanghai 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.)
Filing date
Publication date
Application filed by Zhejiang Chint Electrics Co Ltd, Noark Electrics Shanghai Co Ltd, SEARI Electric Technology Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Publication of EP3483912A1 publication Critical patent/EP3483912A1/de
Publication of EP3483912A4 publication Critical patent/EP3483912A4/de
Pending legal-status Critical Current

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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
    • H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop
    • 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
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts

Definitions

  • Embodiments of the present invention relate to the field of low voltage electrical appliances and, more particularly, to an electrical path for a circuit breaker.
  • Circuit breakers are the main switch devices in various circuit equipment. Therefore, photovoltaic dedicated direct current molded-case circuit breakers with DC1500V rated voltage will become the mainstream product of the future photovoltaic industry demand.
  • internal or external cascade connection is usually adopted to achieve a higher rated working voltage by providing multiple break points of a plurality of contact groups.
  • the plurality of contact groups that are cascade-connected need to occupy more space, which will increase the product volume, and in the case of increasingly higher requirements for the product volume, it is required to install a plurality of contact groups in a small space. This poses a challenge to the reliability of the cascade connection of the contact groups and the difficulty of installation.
  • Embodiments of the present invention disclose an electrical path for a circuit breaker, comprising: an inlet contact group; an outlet contact group; and a conductive assembly.
  • the inlet contact group is connected to an inlet terminal, and the outlet contact group is connected to an outlet terminal.
  • the conductive assembly comprises a soft connection assembly and a hard connection assembly.
  • the hard connection assembly is fixed to a base of the circuit breaker; the soft connection assembly is connected to the inlet contact group and the outlet contact group; the soft connection assembly and the hard connection assembly are connected to provide an electrical path between the inlet contact group and the outlet contact group.
  • the inlet contact group and the outlet contact group are coaxially mounted.
  • the hard connection assembly includes a connecting member and a conductive strip.
  • the connecting member is fixed to the base of the circuit breaker and extends from a position near the inlet contact group to a position near the outlet contact group.
  • the conductive strip is fixed to the connecting member and is adjacent to the inlet contact group and the outlet contact group.
  • the connecting member is provided with fixing holes and connecting holes.
  • the connecting member is fixed by fasteners to the base of the circuit breaker through the fixing holes, and the conductive strip is fixed by fasteners to the connecting member through the connecting holes.
  • the soft connection comprises an inlet side soft connection and an outlet side soft connection.
  • the conductive strip comprises an inlet side conductive strip and an outlet side conductive strip. An end of the inlet side soft connection is connected to the inlet side conductive strip, and another end of the inlet side soft connection is connected to the inlet contact group. An end of the outlet side soft connection is connected to the outlet side conductive strip, and another end of the outlet side soft connection is connected to the outlet contact group.
  • the inlet contact group comprises: an inlet static contact and an inlet moving contact.
  • the inlet static contact is connected to the inlet terminal.
  • the inlet side soft connection is connected to the inlet moving contact.
  • the outlet contact group comprises: an outlet static contact and an outlet moving contact.
  • the outlet static contact is connected to the outlet terminal.
  • the outlet side soft connection is connected to the outlet moving contact.
  • the inlet moving contact is mounted coaxially with the outlet moving contact.
  • a plurality of inlet contact groups are provided, and the inlet moving contacts of the plurality of inlet contact groups are coaxially mounted.
  • the electrical path according to one or more embodiments of the present invention by combining a soft connection and a hard connection, utilizes the flexibility of the soft connection to make the mounting of the contact groups more flexible and convenient, and utilizes the hard connection to obtain a reliable and stable electrical path, thereby achieving a balance between assembly efficiency and assembly quality.
  • FIG. 1a and FIG. 1b show structural diagrams of an electrical path for a circuit breaker in accordance with an embodiment of the present invention.
  • the electrical path for the circuit breaker comprises: an inlet contact group; an outlet contact group; and a conductive assembly.
  • the inlet contact group, the outlet contact group, and the conductive assembly are all mounted within a housing of the circuit breaker.
  • the inlet contact group is connected to an inlet terminal.
  • the outlet contact group is connected to an outlet terminal.
  • the conductive assembly comprises a soft connection assembly and a hard connection assembly.
  • the hard connection assembly is fixed to a base of the circuit breaker; the soft connection assembly is connected to the inlet contact group and the outlet contact group; the soft connection assembly and the hard connection assembly are connected to provide an electrical path between the inlet contact group and the outlet contact group.
  • the inlet contact group and the outlet contact group are coaxially mounted.
  • the inlet contact group includes an inlet static contact 121 and an inlet moving contact 122.
  • the inlet static contact 121 is connected to the inlet terminal 123, and the inlet terminal 123 is a wiring strip.
  • the inlet moving contact 122 is rotatably mounted on a rotation shaft. The inlet moving contact 122 rotates about the rotation shaft, and an end portion of the inlet moving contact contacts or separates from a contact 120 on the inlet static contact 121 to form a switching circuit.
  • the root portion of the inlet moving contact 122 is connected to the conductive assembly.
  • the outlet contact group includes an outlet static contact 131 and an outlet moving contact 132.
  • the outlet static contact 131 is connected to an outlet terminal 133, and the outlet terminal 133 is an outlet conductive strip.
  • the outlet moving contact 132 is rotatably mounted on a rotation shaft.
  • the outlet moving contact 132 rotates about the rotation shaft, and an end portion of the outlet moving contact contacts or separates from a contact 130 on the outlet static contact 131 to form a switching circuit.
  • the root portion of the outlet moving contact 132 is connected to the conductive assembly.
  • the inlet moving contact 122 and the outlet moving contact 132 are coaxially mounted. In other words, the inlet moving contact 122 and the outlet moving contact 132 are mounted on the same rotation shaft 141 and rotate about the rotation shaft 141. It should be noted that although coaxial mounting is performed, the inlet moving contact 122 and the outlet moving contact 132 are independently operated, and the two are not synchronized.
  • the purpose of coaxial mounting is to simplify the structure and to save space.
  • the number of inlet contact groups may be multiple, and the inlet moving contacts of the multiple inlet contact groups are coaxially mounted.
  • two inlet contact groups are provided, and the inlet moving contacts of the two inlet contact groups are mounted coaxially.
  • the two inlet moving contacts and the one outlet moving contact are all coaxially mounted.
  • FIG. 3 shows a structural diagram of a connecting member in an electrical path for a circuit breaker in accordance with an embodiment of the present invention.
  • the connecting member 111 is substantially L-shaped.
  • a connecting hole 119 is provided at each end of the main portion of the connecting member 111. The position of the connecting hole 119 is set close to the position of the inlet moving contact or the outlet moving contact.
  • Fixing holes 118 are disposed at unoccupied positions on the connecting member 111.
  • a fixing hole 118 is disposed between the two connecting holes 119 on the main portion. Since the conductive strip 112 needs to be fixed through the connecting holes 119, the size of the conductive strip 112 needs to be considered when providing the fixing holes 118 so that the situation where the conductive strip 112 obscures the fixing holes 118 is avoided.
  • the main portion of the connecting member 111 is disposed along the direction between the inlet contact group and the outlet contact group, extending and substantially covering the distance between the inlet contact group and the outlet contact group.
  • an extended portion extends in a direction perpendicular to the main body portion, forming an L shape.
  • a fixing hole 118 is also provided on the extended portion, and the fixing hole 118 can be operated more conveniently because there is no interference from the conductive strip.
  • the connecting member is fixed to the base of the circuit breaker by fasteners, such as screws or bolts, through the mounting holes 118.
  • the conductive strip 112 is fixed to the connecting member 111 by fasteners, such as bolts, passing through the connecting holes 119.
  • FIG. 2 shows a schematic diagram of the connection of a conductive assembly in an electrical path for a circuit breaker in accordance with an embodiment of the present invention.
  • the inlet moving contact of the inlet contact group is taken as an example for description. It should be understood that the connection manner of the outlet moving contact in the outlet contact group is similar.
  • the soft connection in the conductive assembly includes an inlet side soft connection and an outlet side soft connection, and the conductive strip includes an inlet side conductive strip and an outlet side conductive strip.
  • the inlet side soft connection and the outlet side soft connection are the same components, and the inlet side conductive strip and the outlet side conductive strip are the same components. Different names are used as they are applied to the inlet side and the outlet side.
  • the inlet side conductive strip 112 is fixed to the connecting member 111 by a fastener 113.
  • the position of the inlet side conductive strip 112 is close to the inlet moving contact 122.
  • the inlet side soft connection 115 is a set of wires. An end of the inlet side soft connection 115 is connected to the inlet side conductive strip 112, and another end of the inlet side soft connection 115 is connected to the inlet moving contact 122 of the inlet contact group. In one embodiment, both ends of the inlet side soft connection 115 are soldered to the conductive strip and the moving contact, respectively.
  • the outlet side conductive strip is fixed to the connecting member 111 by a fastener.
  • the position of the outlet side conductive strip is close to the outlet moving contact.
  • the outlet side soft connection is a set of wires. An end of the outlet side soft connection is connected to the outlet side conductive strip, and another end of the outlet side soft connection is connected to the outlet moving contact 132 of the outlet contact group. In one embodiment, both ends of the outlet side soft connection are soldered to the conductive strip and the moving contact, respectively. In FIG. 1b , the conductive assembly, the inlet moving contact and the outlet moving contact can be observed simultaneously after mounting is completed.
  • the conductive assembly provides an electrical path between the inlet contact group and the outlet contact group.
  • the inlet side soft connection and the inlet side conductive strip are connected to the inlet contact group, and the outlet side soft connection and the outlet side conductive strip are connected to the outlet contact group.
  • the connecting member of the conductive assembly is itself made of a conductive material, such as a metal material, so that the inlet side conductive strip and the outlet side conductive strip are electrically connected by the connecting member.
  • other wiring paths, such as wires disposed along the connecting member may also be disposed between the inlet side conductive strip and the outlet side conductive strip to effect conduction of the circuit.
  • the hard connection assembly of the conductive assembly is fixed to the base of the circuit breaker, so that the entire conductive path can be stably and firmly fixed to achieve a stable connection of the electrical path.
  • the electrical path between the inlet terminal 123 and the outlet terminal 133 is as follows:
  • the inlet terminal is connected to the inlet static contact.
  • the inlet static contact and the inlet moving contact contact to be closed.
  • the inlet moving contact is connected to the outlet moving contact through the inlet side soft connection, the inlet side conductive strip, the connecting member, the outlet side conductive strip, and the outlet side soft connection.
  • the outlet moving contact and the outlet static contact contact to be closed.
  • the outlet terminal is connected to the outlet static contact to realize a complete conductive loop.
  • the electrical path according to one or more embodiments of the present invention by combining a soft connection and a hard connection, utilizes the flexibility of the soft connection to make the mounting of the contact groups more flexible and convenient, and utilizes the hard connection to obtain a reliable and stable electrical path, thereby achieving a balance between assembly efficiency and assembly quality.

Landscapes

  • Breakers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP17823580.0A 2016-07-06 2017-07-03 Elektrisch leitfähige schleife eines schutzschalters Pending EP3483912A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610525091.XA CN105931928B (zh) 2016-07-06 2016-07-06 断路器的导电回路
PCT/CN2017/091415 WO2018006768A1 (zh) 2016-07-06 2017-07-03 断路器的导电回路

Publications (2)

Publication Number Publication Date
EP3483912A1 true EP3483912A1 (de) 2019-05-15
EP3483912A4 EP3483912A4 (de) 2020-01-15

Family

ID=56827531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17823580.0A Pending EP3483912A4 (de) 2016-07-06 2017-07-03 Elektrisch leitfähige schleife eines schutzschalters

Country Status (8)

Country Link
EP (1) EP3483912A4 (de)
CN (1) CN105931928B (de)
BR (1) BR112019000279A2 (de)
CL (1) CL2019000020A1 (de)
CO (1) CO2019000055A2 (de)
MX (1) MX2019000186A (de)
PE (1) PE20191259A1 (de)
WO (1) WO2018006768A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931928B (zh) * 2016-07-06 2018-11-09 上海电科电器科技有限公司 断路器的导电回路
TWI690965B (zh) * 2018-11-30 2020-04-11 陳錫瑜 具備自力跳脫斷路器跳脫迴路改良裝置
CN110289198B (zh) * 2019-07-26 2024-03-01 贵州泰永长征技术股份有限公司 一种小型断路器的限流和快速分断结构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556515B1 (fr) * 1983-12-13 1987-01-16 Merlin Gerin Procede et dispositif de connexion electrique fixe de tresses sur des plages d'amenee de courant
CN2197744Y (zh) * 1993-08-25 1995-05-17 叶永春 可远距离频繁电动操作的断路器
FR2805078B1 (fr) * 2000-02-14 2004-09-17 Realisation De Disjoncteurs So Interrupteur multipolaire
CN1220234C (zh) * 2001-10-30 2005-09-21 浙江正泰电器股份有限公司 一种多极低压双断点塑壳断路器
CN101819908B (zh) * 2010-04-16 2012-08-29 江苏辉能电气有限公司 低压断路器的导电回路结构
CN201773802U (zh) * 2010-07-15 2011-03-23 北京翠祥电器元件有限公司 小型塑料外壳式断路器
CN102456515B (zh) * 2010-10-20 2014-09-24 北京人民电器厂有限公司 一种多断点塑料外壳式断路器
CN201927556U (zh) * 2010-12-27 2011-08-10 佛山市佳华电器科技发展有限公司 一种小型断路器连接线
CN102891047B (zh) * 2012-09-26 2013-12-11 常熟开关制造有限公司(原常熟开关厂） 开关装置的导电回路结构
CN203300573U (zh) * 2013-06-03 2013-11-20 常熟开关制造有限公司(原常熟开关厂） 多断点塑料外壳式断路器
CN203607352U (zh) * 2013-12-06 2014-05-21 上海圣昂电气有限公司 具有限流保护机构的多断点断路器
CN104779129B (zh) * 2015-04-16 2017-09-29 北京人民电器厂有限公司 一种双层极联结构的断路器
CN105719918B (zh) * 2016-04-15 2019-06-21 常熟开关制造有限公司(原常熟开关厂） 多断点塑壳断路器
CN205863108U (zh) * 2016-07-06 2017-01-04 上海电科电器科技有限公司 断路器的导电回路
CN105931928B (zh) * 2016-07-06 2018-11-09 上海电科电器科技有限公司 断路器的导电回路

Also Published As

Publication number Publication date
CO2019000055A2 (es) 2019-03-29
CN105931928A (zh) 2016-09-07
MX2019000186A (es) 2019-08-29
WO2018006768A1 (zh) 2018-01-11
EP3483912A4 (de) 2020-01-15
BR112019000279A2 (pt) 2019-04-16
CL2019000020A1 (es) 2019-05-24
CN105931928B (zh) 2018-11-09
PE20191259A1 (es) 2019-09-18

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