WO2012006815A1 - 断路器的可动接触机构 - Google Patents

断路器的可动接触机构 Download PDF

Info

Publication number
WO2012006815A1
WO2012006815A1 PCT/CN2010/077443 CN2010077443W WO2012006815A1 WO 2012006815 A1 WO2012006815 A1 WO 2012006815A1 CN 2010077443 W CN2010077443 W CN 2010077443W WO 2012006815 A1 WO2012006815 A1 WO 2012006815A1
Authority
WO
WIPO (PCT)
Prior art keywords
support rod
shaft
rod
circuit breaker
movable contact
Prior art date
Application number
PCT/CN2010/077443
Other languages
English (en)
French (fr)
Inventor
南寅
Original Assignee
北京翠祥电器元件有限公司
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 北京翠祥电器元件有限公司 filed Critical 北京翠祥电器元件有限公司
Priority to AU2010357525A priority Critical patent/AU2010357525B2/en
Priority to SG2013010624A priority patent/SG187827A1/en
Priority to RU2013100917/07A priority patent/RU2524680C1/ru
Priority to MYPI2013700251A priority patent/MY184229A/en
Publication of WO2012006815A1 publication Critical patent/WO2012006815A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2066—Fork-shaped bridge; Two transversally connected contact arms bridging two fixed contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/32—Self-aligning contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H2001/223—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member using a torsion spring

Definitions

  • the invention relates to a movable contact mechanism of a current limiting type circuit breaker, belonging to the field of low voltage electrical appliances.
  • an object of the present invention is to provide a movable contact mechanism of a current limiting type circuit breaker, which adopts a double contact with a simple structure and convenient installation with a balanced final pressure function to solve the problem of unstable contact contact. Therefore, the breaking capacity of the circuit breaker can be improved under the condition that the external dimensions are not increased.
  • a movable contact mechanism of a circuit breaker comprising: a rotating shaft for driving a support rod; a plurality of support rods, the upper part of the support rod has a vertical hole, and the lower part has a horizontal hole, and each support rod is passed through a shaft of the lower transverse hole is rotatably connected to the rotating shaft; and a Y-shaped contact rod composed of a U-shaped arm and a shaft, which is equal to the supporting rod, and the two arms of the U-shaped arm are provided with contacts, and the shaft is inserted into the shaft
  • the vertical hole of the support rod is rotatably connected with the support rod; a plurality of elastic members, one end of the elastic member is connected to the shaft of the Y-shaped contact rod or the support rod, and the other end is connected to the rotating shaft; the rotating shaft passes through the elastic member Drive each support rod to rotate.
  • the elastic element is a flat double twist spring, which comprises an upper twist arm and a lower twist arm.
  • the lower twist arm is connected to the rotating shaft, and the upper twist arm is engaged on the shaft of the Y-shaped contact rod or the support rod on.
  • the middle portion of the support rod is laterally opened with a groove penetrating through the vertical hole of the upper portion of the support rod; the shaft of the Y-shaped contact rod is corresponding to the groove on the support rod after the shaft rod is inserted into the vertical hole of the support rod There is a ring groove; the upper torsion arm of the torsion spring is embedded in the groove on the support rod, and is caught in the ring groove of the shaft.
  • the middle portion of the support rod is laterally opened with a pin hole penetrating through the vertical hole of the upper portion of the support rod; the middle portion of the support rod is laterally opened with a groove; the shaft of the Y-shaped contact rod is inserted into the support rod of the shaft rod Corresponding to the pin hole on the support rod after the vertical hole .
  • the Y-shaped contact rod is rotatably connected to the support rod by a pin inserted into the pin hole of the support rod and the ring groove of the shaft; the upper torsion arm of the torsion spring is caught in the groove of the support rod .
  • the shaft of the Y-shaped contact rod has a shoulder, and a spring piece is sandwiched between the crotch portion of the shoulder and the upper end surface of the support rod.
  • the lower portion of the support rod is connected to the lever through a pin for pulling the support rod to break the contact.
  • the bottom end of the support rod is provided with a boss which contacts the edge of the lever when the lever is turned to a certain angle.
  • a shaft hole is formed in a middle portion of the U-shaped arm of the Y-shaped contact rod, and the shaft rod is rigidly connected to the U-shaped arm through the shaft hole.
  • the shaft is riveted, screwed or welded to the u-arm.
  • the invention has the advantages of simple form and convenient installation, in particular, a double-breakpoint contact final pressure self-balancing function, which can effectively solve the problem that the electrical conductivity of the double-breakpoint contact is getting worse and worse in use. problem.
  • Figure 1 is a side view of the shaft of the first embodiment of the present invention
  • Figure 2 is a cross-sectional structural view showing a first embodiment of the present invention
  • FIG. 3 is a side view of a support rod shaft according to Embodiment 1 of the present invention.
  • Figure 4 is a side view of the shaft of the Y-shaped contact rod of the present invention.
  • Figure 5 is a side view of the shaft of the spring of the present invention.
  • Figure 6 is a side view of the U-shaped arm of the Y-shaped contact rod of the present invention.
  • Figure 7 is a side view of the shaft of the shaft of the Y-shaped contact rod of the present invention.
  • Figure 8 is a side view of the shaft of the support rod of the added feature of the present invention.
  • Figure 9 is an axial side view of an application example of a support rod of the added feature of the present invention.
  • Figure 10 is a cross-sectional structural view showing an application example of a support rod of the present invention.
  • Figure 11 is a cross-sectional structural view showing a second embodiment of the present invention.
  • Figure 12 is a side view of the support rod shaft of the second embodiment of the present invention.
  • a current limiting circuit breaker having an insulating molded case, it generally comprises: at least one fixed contact portion for each pole and at least one movable contact portion, which can be Interconnecting/disconnecting; a mechanism providing energy for moving the movable contact portion and determining connection/disconnection of the movable contact portion and the corresponding fixed contact portion, the mechanism including each pole and The moving shaft is connected to the rotating shaft.
  • the invention relates to a movable contact mechanism in the circuit breaker, comprising: a rotating shaft for driving the support rod; a plurality of support rods, the upper part of the support rod has a vertical hole, and the lower part has a horizontal hole, and each support rod is worn through
  • the shaft of the lower cross hole is rotatably connected with the rotating shaft;
  • the Y-shaped contact rod formed by the U-shaped arm and the shaft is equal to the supporting rod, and the two arms of the U-shaped arm are provided with contacts, and the shaft is inserted
  • the vertical hole of the support rod is rotatably connected with the support rod; a plurality of torsion springs, one end of the torsion spring is connected to the shaft of the Y-shaped contact rod or the support rod, and the other end is connected to the rotating shaft;
  • the torsion spring drives the support rods to rotate. .
  • the movable contact portion of the current limiting circuit breaker of the present invention comprises three support rods 1, one shaft 2, one rotating shaft 3, three Y-shaped contact rods 4, and three springs 5. among them:
  • the upper part of the support rod 1 is opened with a vertical hole 12, and the lower side is opened by a vertical hole 11, and the vertical hole 12 and the horizontal hole 11 are substantially perpendicular to each other. See Fig. 2, the support rod 1 passes through the shaft 2 and the shaft which penetrates the horizontal hole 11 thereof. The three-phase connection, the support rod 1 can be rotated relative to the rotating shaft 3 with the shaft 2 as the center of rotation.
  • the Y-shaped contact lever 4 is composed of a U-shaped arm 42 and a shaft 43.
  • the two arms of the U-shaped arm 42 are provided with contacts 41 which are in contact with the fixed contact portions of the circuit breaker.
  • the cylindrical hole 421 of the U-shaped contact arm 42 is riveted and connected to the shaft 43 as a rigid unit, and the connection manner can be achieved by screwing or welding in addition to the riveting.
  • the shaft 43 of the Y-shaped contact rod 4 is inserted into the vertical hole 12 of the support rod 1 and is rotatably connected with the support rod 1.
  • the Y-shaped contact rod 4 can rotate around the center line of the vertical hole 12, which is favorable for the contact pressure of the fixed contact portion. Basic balance.
  • the middle portion of the support rod 1 is laterally opened with a groove 15 penetrating through the vertical hole 12 in the upper portion of the support rod.
  • the shaft 43 of the Y-type contact rod has a ring groove 431 which is located corresponding to the groove 15 on the support rod after the shaft 43 is inserted into the vertical hole 12 of the support rod.
  • the spring 5 is constructed in the form of a parallel twisted spring comprising an upper torsion arm 511 and two lower torsion arms 512.
  • the shaft 43 of the Y-shaped contact rod 4 is inserted into the vertical hole 12 of the support rod 1, the upper torsion arm 511 of the spring 5 is embedded in the groove 15 on the support rod, and is caught in the ring groove of the shaft 43 In 431, the two lower torsion arms 512 of the spring 5 are again caught on the boss 31 of the rotary shaft 3 (Fig. 2).
  • the spring 5 is in a compressed energy storage state, and a certain pressure is applied to the shaft 43 of the Y-shaped contact rod 4 to ensure that the shaft 43 does not escape from the hole 12 of the support rod 1 due to vibration or the like, and
  • the Y-shaped contact lever 4 has a certain rotational resistance when the shaft 43 is rotated, and can also elastically press the support rod 1 against the rotating shaft 3.
  • the support rod 1 is connected to the rotating shaft 3 via a spring 5, a shaft 43, and a shaft 2.
  • the rotating shaft 3 drives the support rods 1 to rotate by the torsion springs 5, and then drives the Y-shaped contact rods 4 connected to the support rods 1 to rotate, thereby realizing the movable contact portions relative to the fixed contact portions.
  • the Y-shaped contact rod 4 is provided with a reliable contact pressure to the fixed contact portion by the spring 5, and if there is a slight difference in the height of the contact portion of the fixed contact portion due to manufacturing, installation, use, etc.
  • the contact pressure of the two contacts 41 of the Y-shaped contact rod can be automatically balanced by the rotation of the Y-shaped contact rod.
  • the invention adopts the form of series double breakpoints to limit the circuit breaker, and the current limiting process is as follows: When the circuit breaker is disconnected or the mechanism is tripped, the contact 41 of the Y-shaped contact rod 4 is separated from the fixed contact portion, and the contact 41 thereof An arc is generated between the fixed contact portion and the arc, and the arcs are insulated and insulated from each other. Thus, the length of the arc is increased to twice the length of the ordinary single break, and the arc resistance is doubled accordingly. , this effectively limits the fault current in the loop, effectively .
  • a pin hole 13 and a boss 14 may be further added to the lower portion of the support rod 1, and the pin hole 13 is parallel to the horizontal hole 11.
  • the pin hole 13 on the support rod 1 is connected to the corresponding hole on the lever 6, so that the lever 6 rotates relative to the support rod 1 with the pin hole 13 as a rotating shaft, and the lever is used to pull the support rod 1 to break the contact.
  • the boss 14 is in contact with an edge on the lever 6.
  • the difference between the second embodiment and the first embodiment is that the central portion of the support rod 1 has a pin hole 14 extending through the vertical hole 12 in the upper portion of the support rod, and the groove 15 does not penetrate the vertical hole 12.
  • the upper torsion arm 511 of the spring 5 is caught in the groove 15 of the support rod 1, and the shaft 43 of the Y-shaped contact rod 4 is inserted into the vertical hole 12 of the support rod 1, the ring groove 431 of the shaft 43 and the support rod 1
  • the pin holes 14 are aligned and connected by a pin to prevent the shaft 43 from coming out of the pin hole 14 in the support rod 1.
  • the support rod 1 can also be provided with no groove 15, and the spring 5 can be directly pressed against the support rod to achieve the same function.
  • a spring piece 7 is disposed, and the spring piece 7 is interposed between the crotch portion of the shoulder 432 of the shaft 43 and the upper end surface 16 of the support rod 1.
  • the end of the spring piece 7 is in contact with the upper end surface 16 of the support rod 1, and the other end is in contact.
  • the crotch portion of the shoulder 432 of the shaft 43 This allows the shaft 43 and the support rod 1 to withstand a certain contact pressure, so that the shaft 43 has an appropriate rotational resistance when rotated relative to the support rod 1.

Landscapes

  • Breakers (AREA)

Abstract

一种断路器的可动接触机构，包括：一根转轴（3），若干支撑杆（1），Y形接触杆（4）和若干弹性元件(5）。一根转轴用于带动支撑杆，该支撑杆的上部开竖孔（12），下部开横孔（11），各支撑杆通过穿于其下部横孔的轴（2）与所述转轴转动连接；由U形臂（42）和轴杆（43）构成的Y形接触杆的数量与支撑杆等量，U形臂的两个臂上设有触点（41），轴杆插入所述支撑杆的竖孔中与支撑杆转动连接；弹性元件的一端连接在所述Y形接触杆的轴杆上或支撑杆上，另一端连接在所述转轴上；转轴通过弹性元件带动各支撑杆转动。该可动接触机构有效解决双断点触头的导电性在使用中越来越差的问题。

Description

断路器的可动接触机构 技术领域
本发明涉及一种限流型断路器的可动接触机构， 属于低压电器领域。
背景技术
在低压断路器技术领域中，提高短路分断能力一直都是难题。对于传统的断路器来说， 在仅对结构做局部改动的情况下， 若提高分断能力， 可通过增大断路器的开距， 即增大拉 弧长度提高弧电阻的方法增高限流能力， 从而实现提高断路器分断能力的目的。 但断路器 的发展趋势日益趋向小型化、 紧凑化。说如何在断路器体积不增反减的趋势下提高分断能力 已成为研究的热点、 重点问题。
目前国际上某些产品已采用单臂双头结构，书这种结构在一定程度上增加拉弧长度， 在 不增加尺寸的前提下提高了限流能力。 但其在使用过程中双触头磨损情况不一， 因此会带 来终压力不平衡的情况， 继而导致接触电阻增加， 断路器性能下降的问题。
还有一些产品采取双臂双头桥式结构， 两臂中间有关节器件连接， 能够平衡终压力， 解决接触电阻不稳定的问题， 但此类结构形式复杂， 安装维修都不方便。
发明内容
基于上述问题， 本发明的目的是提供一种限流型断路器的可动接触机构， 它采用结构 简单、 安装方便的具有平衡终压力功能的双触头， 以解决触头接触不稳定的问题， 从而可 在外形尺寸不增加的条件下， 提高断路器分断能力。
本发明采用的技术方案是：
一种断路器的可动接触机构， 其特征在于包括： 一根转轴， 用于带动支撑杆； 若干支 撑杆， 该支撑杆的上部开竖孔， 下部开横孔， 各支撑杆通过穿于其下部横孔的轴与所述转 轴转动连接； 与支撑杆等量的由 u形臂和轴杆构成的 Y形接触杆， U形臂的两个臂上设有触 点， 轴杆插入所述支撑杆的竖孔中与支撑杆转动连接； 若干弹性元件， 弹性元件的一端连 接在所述 Y形接触杆的轴杆上或支撑杆上， 另一端连接在所述转轴上； 转轴通过弹性元件 带动各支撑杆转动。
所述弹性元件为平列双扭弹簧， 其包括上扭臂和下扭臂， 下扭臂连接在所述转轴上， 上扭臂嵌接于所述 Y形接触杆的轴杆上或支撑杆上。
所述支撑杆的中部横向开有与支撑杆上部的竖孔贯通的凹槽； 所述 Y型接触杆的轴杆 上于轴杆插入支撑杆的竖孔后与支撑杆上的凹槽对应位置处具有环槽； 所述扭簧的上扭臂 嵌入支撑杆上的凹槽， 并卡在轴杆的环槽中。
所述支撑杆的中部横向开有与支撑杆上部的竖孔贯通的销孔； 所述支撑杆的中部横向 开有凹槽； 所述 Y型接触杆的轴杆上于轴杆插入支撑杆的竖孔后与支撑杆上的销孔对应位 .
置处具有环槽； 所述 Y型接触杆通过插入支撑杆的销孔和轴杆的环槽的销子与支撑杆转动 连接； 所述扭簧的上扭臂卡在支撑杆的凹槽中。
所述 Y形接触杆的轴杆上具有轴肩， 该轴肩的腋部与支撑杆的上端面之间夹置弹簧片。 所述支撑杆的下部通过销轴连接杠杆， 该杠杆用于扳动支撑杆分断触点。 所述支撑杆 的底端设置凸台， 当杠杆转到一定角度时， 该凸台与杠杆的棱边接触。
所述 Y型接触杆的 U型臂中部开有轴孔， 轴杆通过该轴孔与 U型臂刚性连接。
所述轴杆与 u型臂铆接、 螺纹连接或焊接。
与现有技术相比， 本发明的优点是形式简单、 安装方便， 特别是具有双断点触头终压 力自平衡功能， 可有效解决双断点触头的导电性在使用中越来越差的问题。
附图说明
图 1为本发明实施例一的轴侧视图；
图 2为本发明实施例一的剖视结构图；
图 3为本发明实施例一的支撑杆轴侧视图；
图 4为本发明 Y形接触杆的轴侧视图；
图 5为本发明弹簧的轴侧视图；
图 6为本发明 Y形接触杆的 U形臂的轴侧视图；
图 7为本发明 Y形接触杆的轴杆的轴侧视图；
图 8为本发明增加特征的支撑杆的轴侧视图；
图 9为本发明增加特征的支撑杆的应用例的轴侧视图；
图 10为本发明增加特征的支撑杆的应用例的剖视结构图；
图 11为本发明实施例二的剖视结构图；
图 12为本发明实施例二的支撑杆轴侧视图。
具体实施方式
在一种具有绝缘塑壳的限流断路器中， 通常含有： 用于每一极的至少一个固定接触部 分和至少一个可动接触部分，在断路器闭合 /断开时，这些接触部分可以被相互连接 /断开； 机构， 其提供用于使所述可动接触部分运动的能量， 并确定所述可动接触部分和相应的固 定接触部分的连接 /断开， 该机构包括每极与可动接触部分相连的转轴。
本发明涉及这种断路器中的可动接触机构， 其包括： 一根转轴， 用于带动支撑杆； 若 干支撑杆， 该支撑杆的上部开竖孔， 下部开横孔， 各支撑杆通过穿于其下部横孔的轴与所 述转轴转动连接； 与支撑杆等量的由 U形臂和轴杆构成的 Y形接触杆， U形臂的两个臂上设 有触点， 轴杆插入所述支撑杆的竖孔中与支撑杆转动连接； 若干扭簧， 扭簧的一端连接在 所述 Y形接触杆的轴杆上或支撑杆上， 另一端连接在所述转轴上； 转轴通过扭簧带动各支 撑杆转动。 .
下面结合附图对本发明作进一步说明。
实施例一
如图 1所示， 本发明限流断路器的可动接触部分包括 3个支撑杆 1、 一根轴 2、 一根转轴 3、 3个 Y形接触杆 4、 3个弹簧 5。 其中：
见图 3， 支撑杆 1的上部开竖孔 12， 下部开横孔 11， 竖孔 12和横孔 11基本相互垂直， 见 图 2， 支撑杆 1通过穿入其横孔 11的轴 2与转轴 3相连接， 支撑杆 1能以轴 2为转动中心相对于 转轴 3转动。
见图 4， Y形接触杆 4由 U形臂 42和轴杆 43构成， U形臂 42的两个臂上设有与断路器的固 定接触部分接触的触点 41。 见图 6， 其中 U型接触臂 42的圆柱形孔 421与轴杆 43铆合连接成 为一个刚性整体， 其连接方式除铆接外还可用螺纹连接或焊接的方式达到刚性连接的目 的。 Y形接触杆 4的轴杆 43插入支撑杆 1的竖孔 12中与支撑杆 1转动连接， Y形接触杆 4能绕竖 孔 12的中心线转动， 有利于实现其对固定接触部分接触压力基本平衡。
见图 3， 支撑杆 1的中部横向开有与支撑杆上部的竖孔 12贯通的凹槽 15。 见图 7， Y型接 触杆的轴杆 43上具有环槽 431， 该环槽 431的位置于轴杆 43插入支撑杆的竖孔 12后与支撑杆 上的凹槽 15相对应。 见图 5， 弹簧 5的结构形式为平列双扭弹簧， 其包括上扭臂 511和两个 下扭臂 512。
安装时， 将 Y形接触杆 4的轴杆 43插入到支撑杆 1的竖孔 12中， 把弹簧 5的上扭臂 511嵌 入支撑杆上的凹槽 15， 并卡在轴杆 43的环槽 431中， 再使弹簧 5的两个下扭臂 512卡在转轴 3 的凸台 31上（图 2)。 这样使弹簧 5处于压缩储能状态， 其对 Y形接触杆 4的轴 43施加了一定的 压力， 既能保证轴 43不会由于振动等原因从支撑杆 1的孔 12内脱出， 又能在 Y形接触杆 4以 轴杆 43转动时具有一定的转动阻力， 还能将支撑杆 1弹性地压在转轴 3上。
支撑杆 1通过弹簧 5、 轴 43、 轴 2与转轴 3连接。 转轴 3在断路器操动机构的带动下， 通 过扭簧 5带动各支撑杆 1转动， 进而带动与支撑杆 1连接的各 Y型接触杆 4转动， 从而实现可 动接触部分相对固定接触部分的合、 分。 在合的状态时， 通过弹簧 5为 Y形接触杆 4提供对 固定接触部分可靠的接触压力， 若由于制造、 安装、 使用等原因， 造成固定接触部分的触 点高度上略有差距的情况时， Y形接触杆的两个触点 41接触压力可通过 Y形接触杆的旋转而 实现压力自动平衡。 这样有效地解决了双断点触头的导电性在使用中越来越差的问题。 而 在分的过程中及分的状态下， 因弹簧 5的作用， Y形接触杆 4不会随意旋转而破坏触头的开 距， 从而保证了分断的可靠性。
本发明采用串联双断点的形式对断路器进行限流， 其限流过程如下： 断路器分断或机 构脱扣时， Y形接触杆 4的触点 41与固定接触部分分离， 其触点 41分别与固定接触部分之间 的产生电弧， 且此两段电弧相互独立与绝缘， 这样一来， 拉弧长度便增加为普通单断点拉 弧长度的两倍， 弧阻也相应增加到两倍， 这样便有效地限制了回路中的故障电流， 有效地 .
提高了断路器的限流能力。
此外， 请参阅图 8-图 10， 在支撑杆 1的下部还可增设销孔 13和凸台 14， 销孔 13与横孔 11平行。 用销轴连接支撑杆 1上的销孔 13与杠杆 6上相应的孔， 使杠杆 6以销孔 13为转轴相 对于支撑杆 1转动， 该杠杆用于扳动支撑杆 1分断触点。 当杠杆 6转到一定角度时， 凸台 14 与杠杆 6上的一棱边接触。 在断路器合的状态， 通过对杠杆 6的末端施加一垂直于杠杆 6上 的面 61的力， 可使相应的支撑杆 1相对转轴 3转动， 从而带动相应的 Y形接触杆 4转动， 实现 可动接触部分与固定接触部分的分离。 此种结构可配合电磁启动器用于选择性断路器主导 电回路中， 实现短延时保护启动功能。
实施例二
见图 12， 实施例二与实施例一的区别在于支撑杆 1的中部横向开有与支撑杆上部的竖 孔 12贯通的销孔 14， 且凹槽 15不与竖孔 12发生贯穿。 弹簧 5的上扭臂 511卡在支撑杆 1的凹 槽 15中， Y形接触杆 4的轴杆 43插入到支撑杆 1的竖孔 12中， 轴杆 43的环槽 431与支撑杆 1上 的销孔 14对齐， 并通过销轴连接， 防止轴杆 43从支撑杆 1上的销孔 14中脱出。 其中支撑杆 1 也可不设置凹槽 15， 弹簧 5直接压在支撑杆上亦可实现同样的功能。 另增设弹簧片 7， 弹簧 片 7夹置于轴杆 43的轴肩 432的腋部与支撑杆 1的上端面 16之间， 弹簧片 7—端接触支撑杆 1 的上端面 16， 另一端接触轴杆 43的轴肩 432的腋部。 这样能使轴杆 43与支撑杆 1各承受一定 的接触压力， 使轴杆 43相对于支撑杆 1转动时具有适当的转动阻力。
上述实施例并不对本发明所要求的保护范围构成任何形式的限制， 本发明的权利要求 书覆盖了所有的修改和变更。

Claims

PCT2010002.WO 2012/006815 PCT/CN2010/077443 权 利 要 求 书
1.一种断路器的可动接触机构， 其特征在于：
一根转轴， 用于带动支撑杆；
若干支撑杆， 该支撑杆的上部开竖孔， 下部开横孔， 各支撑杆通过穿于其下部横孔的 轴与所述转轴转动连接；
5 与支撑杆等量的 Y形接触杆， 其上设有触点， 其轴杆插入所述支撑杆的竖孔中与支撑 杆转动连接；
若干弹性元件， 弹性元件的一端连接在所述 Y形接触杆的轴杆上或支撑杆上， 另一端 连接在所述转轴上；
转轴通过弹性元件带动各支撑杆动作。
10 2.如权利要求 1所述的断路器的可动接触机构， 其特征在于：
所述弹性元件为平列双扭弹簧， 其包括上扭臂和下扭臂， 下扭臂连接在所述转轴上， 上扭臂嵌接于所述 Y形接触杆的轴杆上或支撑杆上。
3.如权利要求 2所述的断路器的可动接触机构， 其特征在于：
所述支撑杆的中部横向开有与支撑杆上部的竖孔贯通的凹槽；
15 所述 Y型接触杆的轴杆上于轴杆插入支撑杆的竖孔后与支撑杆上的凹槽对应位置处具 有环槽；
所述扭簧的上扭臂嵌入支撑杆上的凹槽， 并卡在轴杆的环槽中。
4.如权利要求 2所述的断路器的可动接触机构， 其特征在于：
所述支撑杆的中部横向开有与支撑杆上部的竖孔贯通的销孔；
20 所述支撑杆的中部横向开有凹槽；
所述 Y型接触杆的轴杆上于轴杆插入支撑杆的竖孔后与支撑杆上的销孔对应位置处具 有环槽；
所述 Y型接触杆通过插入支撑杆的销孔和轴杆的环槽的销子与支撑杆转动连接； 所述扭簧的上扭臂卡在支撑杆的凹槽中。
25 5.如权利要求 4所述的断路器的可动接触机构， 其特征在于：
所述 Y形接触杆的轴杆上具有轴肩， 该轴肩的腋部与支撑杆的上端面之间夹置弹簧片。
6.如权利要求 1所述的断路器的可动接触机构， 其特征在于：
所述支撑杆的下部通过销轴连接杠杆， 该杠杆用于扳动支撑杆分断触点。
7.如权利要求 6所述的断路器的可动接触机构， 其特征在于：
30 所述支撑杆的底端设置凸台， 当杠杆转到一定角度时， 该凸台与杠杆的棱边接触。
8.如权利要求 1所述的断路器的可动接触机构， 其特征在于：
所述 Y型接触杆的 U型臂中部开有轴孔， 轴杆通过该轴孔与 U型臂刚性连接。
9.如权利要求 8所述的断路器的可动接触机构， 其特征在于：
所述轴杆与 U型臂铆接、 螺纹连接或焊接。
PCT/CN2010/077443 2010-07-15 2010-09-29 断路器的可动接触机构 WO2012006815A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2010357525A AU2010357525B2 (en) 2010-07-15 2010-09-29 Movable contact mechanism for circuit breaker
SG2013010624A SG187827A1 (en) 2010-07-15 2010-09-29 Movable contact mechanism for circuit breaker
RU2013100917/07A RU2524680C1 (ru) 2010-07-15 2010-09-29 Механизм подвижной пружины для рубильника
MYPI2013700251A MY184229A (en) 2010-07-15 2010-09-29 Movable contact mechanism for circuit breaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010232406.4A CN102339693B (zh) 2010-07-15 2010-07-15 断路器的可动接触机构
CN201010232406.4 2010-07-15

Publications (1)

Publication Number Publication Date
WO2012006815A1 true WO2012006815A1 (zh) 2012-01-19

Family

ID=45468894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/077443 WO2012006815A1 (zh) 2010-07-15 2010-09-29 断路器的可动接触机构

Country Status (6)

Country Link
CN (1) CN102339693B (zh)
AU (1) AU2010357525B2 (zh)
MY (1) MY184229A (zh)
RU (1) RU2524680C1 (zh)
SG (1) SG187827A1 (zh)
WO (1) WO2012006815A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733290A2 (en) 2015-06-22 2020-11-04 Exelus, Inc. Improved catalyzed alkylation, alkylation catalysts, and methods of making alkylation catalysts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104505308A (zh) * 2014-12-10 2015-04-08 上海电器科学研究院 一种双断点塑壳断路器
CN105762038B (zh) * 2016-04-29 2018-01-05 首瑞（天津）电气设备有限公司 断路器触头系统及断路器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001332162A (ja) * 2000-05-19 2001-11-30 Fuji Electric Co Ltd 回路しゃ断器の可動接触子
CN2833865Y (zh) * 2005-11-17 2006-11-01 上海电器股份有限公司人民电器厂 具有自平衡功能的电路断路器接触装置
CN201408718Y (zh) * 2009-05-07 2010-02-17 上海良信电器股份有限公司 用于小型断路器的双断点触头机构
CN201417728Y (zh) * 2009-06-17 2010-03-03 常熟开关制造有限公司(原常熟开关厂） 断路器的触头装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2049364C1 (ru) * 1994-11-02 1995-11-27 Акционерное общество открытого типа "Саратовский электромеханический завод "Электродеталь" Выключатель многополюсный врубной
RU2281577C1 (ru) * 2005-04-19 2006-08-10 Государственное образовательное учреждение высшего профессионального образования "Иркутский государственный технический университет" (ГОУ ИрГТУ) Рубильник
CN201773792U (zh) * 2010-07-15 2011-03-23 北京翠祥电器元件有限公司 断路器的可动接触机构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001332162A (ja) * 2000-05-19 2001-11-30 Fuji Electric Co Ltd 回路しゃ断器の可動接触子
CN2833865Y (zh) * 2005-11-17 2006-11-01 上海电器股份有限公司人民电器厂 具有自平衡功能的电路断路器接触装置
CN201408718Y (zh) * 2009-05-07 2010-02-17 上海良信电器股份有限公司 用于小型断路器的双断点触头机构
CN201417728Y (zh) * 2009-06-17 2010-03-03 常熟开关制造有限公司(原常熟开关厂） 断路器的触头装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733290A2 (en) 2015-06-22 2020-11-04 Exelus, Inc. Improved catalyzed alkylation, alkylation catalysts, and methods of making alkylation catalysts

Also Published As

Publication number Publication date
AU2010357525A1 (en) 2013-02-28
RU2524680C1 (ru) 2014-08-10
CN102339693A (zh) 2012-02-01
MY184229A (en) 2021-03-29
CN102339693B (zh) 2014-02-12
AU2010357525B2 (en) 2014-06-12
SG187827A1 (en) 2013-03-28

Similar Documents

Publication Publication Date Title
WO2020108624A1 (zh) 断路器
US8207459B2 (en) Mold cased circuit breaker
US8183485B2 (en) Circuit breaker having automatic release linkage
CN107068444A (zh) 用于低压电气设施的开关装置
JP2011151023A (ja) 限流型配線用遮断器の可動接触子アセンブリ
WO2012006815A1 (zh) 断路器的可动接触机构
CN103681124B (zh) 密闭式多极断路器
WO2016173461A1 (zh) 断路器的操作机构
CN102543602A (zh) 模制管壳式断路器的脱扣单元和有该脱扣单元的该断路器
CN103646828B (zh) 微型断路器的操作机构及其工作过程
WO2016173462A1 (zh) 断路器的操作机构的熔焊隔离机构
CN102129939B (zh) 用于四极断路器的动力传递机构
CN203631449U (zh) 微型断路器的操作机构
CN201408718Y (zh) 用于小型断路器的双断点触头机构
CN207264963U (zh) 接地开关及使用该接地开关的开关柜
CN207587673U (zh) 可翻转动触头组件和开关电器
KR20240137459A (ko) 테스트 버튼 회로 장치 및 차단기
CN205384995U (zh) 一种小型断路器快合闸结构
CN104601048A (zh) 能快速分断的电机起动器的操作机构
KR101239741B1 (ko) 공동주택용 나이프블레이드의 가동접점장치
CN200990455Y (zh) 具有寿命终止检测功能的漏电保护插座
CN205376449U (zh) 一种小型断路器触头结构及小型断路器
CN207587664U (zh) 多极联动的小型断路器
CN201773792U (zh) 断路器的可动接触机构
CN207664012U (zh) 开关电器和触头斥开卡住结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10854607

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2013/00340

Country of ref document: TR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2013100917

Country of ref document: RU

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2010357525

Country of ref document: AU

Date of ref document: 20100929

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 10854607

Country of ref document: EP

Kind code of ref document: A1