WO2016165402A1 - 断路器 - Google Patents

断路器 Download PDF

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Publication number
WO2016165402A1
WO2016165402A1 PCT/CN2015/100122 CN2015100122W WO2016165402A1 WO 2016165402 A1 WO2016165402 A1 WO 2016165402A1 CN 2015100122 W CN2015100122 W CN 2015100122W WO 2016165402 A1 WO2016165402 A1 WO 2016165402A1
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WO
WIPO (PCT)
Prior art keywords
contact
circuit breaker
base
pole
breaker according
Prior art date
Application number
PCT/CN2015/100122
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English (en)
French (fr)
Inventor
朱金保
谷春雷
南寅
Original Assignee
北京人民电器厂有限公司
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Application filed by 北京人民电器厂有限公司 filed Critical 北京人民电器厂有限公司
Publication of WO2016165402A1 publication Critical patent/WO2016165402A1/zh

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    • 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
    • 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
    • H01H73/18—Means for extinguishing or suppressing arc

Definitions

  • the invention relates to the field of circuit breakers, and in particular to a low voltage DC circuit breaker.
  • Cipheral Patent Application Publication No. CN 102592903 A discloses a pre-wired circuit breaker in which a plurality of breakpoints are connected in series.
  • the circuit breaker of the preset wiring mode does not need to be connected in series by the user, and can be directly connected with the terminal board preset by the circuit breaker.
  • the present application provides a circuit breaker including a static contact and a base, wherein the static contact includes a contact portion and a pole portion, and the static contact is fixedly mounted on the base, the contact The portion is on the upper side of the base, and the pole portion is on the lower side of the base, thereby achieving a two-layer structure.
  • FIG. 1 is an isometric view of an internal pole assembly of a circuit breaker according to an embodiment of the present invention
  • FIG. 2 is an upper isometric view of a circuit breaker in accordance with an embodiment of the present invention
  • FIG. 3 is a bottom isometric view of a circuit breaker in accordance with an embodiment of the present invention.
  • FIG. 4 is an upper isometric view of the circuit breaker after removing the base and the trip unit, in accordance with an embodiment of the present invention
  • FIG. 5 is a bottom isometric view of the circuit breaker after removing the base and the trip unit, in accordance with an embodiment of the present invention
  • FIG. 6 is an assembled isometric view of the static contact of the circuit breaker and the front side of the base, in accordance with an embodiment of the present invention
  • Figure 7 is an assembled isometric view of the static contact of the circuit breaker and the back of the base, in accordance with an embodiment of the present invention.
  • Figure 8 is a perspective view of a static contact composition in accordance with an embodiment of the present invention.
  • Figure 9 is a perspective view of a portion of a stationary contact body in accordance with an embodiment of the present invention.
  • Figure 10 is a front isometric view of the susceptor in accordance with an embodiment of the present invention.
  • Figure 11 is a cross-sectional view of a susceptor in accordance with an embodiment of the present invention.
  • Figure 12 is a rear isometric view of the susceptor in accordance with an embodiment of the present invention.
  • Figure 13 is a perspective view of a stationary contact in accordance with another embodiment of the present invention.
  • Figure 14 is a perspective view of the polar joint of the static contact shown in Figure 13;
  • Figure 15 is a perspective view of the contact portion of the static contact shown in Figure 13;
  • 16 is a schematic diagram of a pole point selection scheme of a circuit breaker according to an embodiment of the present invention.
  • 17 to 18 are schematic diagrams of a pole point selection scheme of a conventional circuit breaker.
  • the circuit breaker 1 shows an isometric view of an internal pole assembly assembly of a two-layer pole structure circuit breaker 1 in accordance with an exemplary embodiment of the present invention.
  • the circuit breaker 1 constitutes a low voltage DC circuit breaker of a two-pole, three-breakpoint configuration.
  • the circuit breaker can include additional electrodes and/or number of breakpoints.
  • the circuit breaker 1 mainly includes a base 10 and a stationary contact 7.
  • the base 10 The upper structure can accommodate the following structure: a first pole including a left upper end static contact 2, a movable contact 3, and a lower end trip unit 4; and a second pole including an intermediate pole and a right pole connected in series with each other, wherein the upper end
  • the intermediate pole contact 8 and the intermediate pole contact 9 can be connected to the right pole stationary contact 7, the right pole pole contact 6, and the second pole lower end trip unit 5.
  • This figure shows the upper layer of the double-layered pole-structure circuit breaker 1 (i.e., the upper side of the susceptor 10) when viewed from the inside of the susceptor 10.
  • the contact portion of the right side static contact 7 see reference numeral 714 in Figs.
  • FIG. 6 shows an upper isometric view after the moving contact 3 is removed from the circuit breaker 1 of FIG. 1.
  • FIG. 3 shows a lower isometric view of the circuit breaker 1 when viewed from the bottom of the base 10.
  • the pole portion of the second pole static contact 7 (see reference numeral 712 in FIGS. 6-9) is on the lower layer of the base 10 (ie, the lower side of the base 10), not in the same spatial plane as the pole contact 8 .
  • the pole portion of the stationary contact 7 is used to connect with the connection portion of the pole contact 9 (see reference numeral 11 in Figs. 4, 5) to form a series structure of two poles.
  • the terminal blocks of the upper and lower terminals on the right side are not provided. This prevents the arc between the poles from being short-circuited when the circuit breaker is installed side by side.
  • FIG. 4 and FIG. 5 are schematic diagrams showing the upper layer and the lower layer of the pole after the base 10 and the trip unit 5 are removed.
  • the connecting portion 11 of the intermediate pole contact 9 can be electrically connected to the pole portion of the right pole contact 7.
  • Connections in the illustrated embodiment, the conductive connections are made by screws 12, but may be connected by other means).
  • Figures 6 and 7 show the assembly of the stationary contact 7 and the base 10 of a two-layer pole-connected circuit breaker.
  • the static contact 7 is loaded from the lower layer of the base 10, and the angle of the parallel surface of the static contact 7 and the lower layer of the base 10 is constantly changed during the loading of the fixed contact 7, such an angle change.
  • the stationary contact 7 is facilitated to be mounted to the base 10 until the stationary contact 7 is received into the recess 19 of the lower layer of the base 10.
  • the stationary contact 7 is mounted on the base 10 and can be fixed by screws 13.
  • the contact portion 714 of the stationary contact 7 is on the upper side of the base 10, and the pole joint portion 712 of the stationary contact 7 is on the lower side of the base 10, thereby achieving a two-layer pole connection.
  • the contact resistance can be reduced, and the pole connection point which is most advantageous for the conductive loop can be freely selected, and the pole joint portion is isolated from the arc region, so that even under the short circuit condition, Ensuring the design of the pole function, there will be no abnormal loop condition caused by arcing splash.
  • This pole connection method can improve the insulation level and make the circuit breaker smaller in size.
  • FIG. 8 shows a structure related to the stationary contact 7 in accordance with an exemplary embodiment of the present invention.
  • the stationary contact may include a contact portion 714 and a pole joint 712.
  • the contact portion 714 can accommodate the electrical contact 73, the arcing portion 74, and the electrical contact 73 and the arcing portion 74 are secured to the top surface of the downwardly curved portion 72 of the contact portion 714.
  • the electrical contact 73 can be fixed to the contact portion 714 by soldering or the like, for example, and the arcing portion 74 can be fixed to the contact portion 714 by, for example, welding, riveting, or screwing.
  • the hole 711 is used as a connection with the moving contact 9 connecting portion 11 by the screw 12, and the other two holes 713 are used for the static contact.
  • 7 is fixedly mounted to the base 10 (for example by means of a thread 13).
  • other configurations for securing the stationary contacts 7 to the base 10 may be provided on the pole joints 712.
  • FIG. 9 shows the body portion 71 after the electrical contacts 73 and the arcing portions 74 are removed from the stationary contacts 7.
  • the contact portion 714 extends in a direction away from the pole portion 712 (left side in FIG. 9), the extended end portion of which is a narrow strip structure, current is current contracted at the strip structure, and electric power is generated between the contacts.
  • Repulsive force that is, this feature is beneficial to the increase of the electric repulsion of the contact.
  • the pole contact 712 and contact portion 714 of the stationary contact may be made of copper (eg, a single piece of copper) and the surface may be silver plated.
  • FIG. 10 shows a partial isometric view of the base 10
  • FIG. 11 shows a cross-sectional view of the base 10.
  • the base 10 can include a support structure for supporting the stationary contacts 7, such as a boss 15.
  • the boss 15 is generally a square pyramidal structure, but the support structure may take other shapes, such as a generally conical, cylindrical or prismatic shape.
  • the upper surface 151 of the square cone may be inclined, the inclination angle coincides with the lower surface angle of the portion 72 of the contact portion 714 of the fixed contact 7 which is bent downward, and the height of the square pyramid structure 151 may be opposite to the contact portion 714 of the fixed contact 7.
  • the lower surface of the lower curved portion 72 coincides.
  • the support structure can ensure the stability of the contact overtravel.
  • FIG. 12 shows a lower isometric view of the circuit breaker 1 when viewed from the bottom of the base 10.
  • the inlet side and the outlet side (upper and lower ends in the figure) on the back side of the base 10 can be provided with grooves 16 of appropriate depth and width. Forming the grooves 16 facilitates mold making.
  • Figure 12 also shows a recess 19 on the bottom surface of the base 10 for receiving the pole contact 712 of the stationary contact 7, the recess 19 being substantially sized to the pole joint 712 of the stationary contact 7.
  • the height of the ribs 18 can be, for example, 2-5 mm.
  • the ribs 18 increase the creepage distance and clearance of the static joint 7 pole joint 712 with the outside.
  • Two holes 17 may be provided in the base 10 for use in conjunction with the stationary contact 7 pole joint holes 713 for securing the stationary contacts 7 to the base 10.
  • Figures 13-15 illustrate another forming scheme for a static contact of a two-layer pole structure.
  • the stationary contact includes a contact portion 20 and a pole joint portion 21, and the contact portion 20 and the pole joint portion 21 may be separately manufactured and joined together by, for example, welding or the like.
  • the contact portion 20 and the pole portion 21 form a split structure that is fixed to each other, which facilitates mold manufacturing.
  • the face 201 and the face 211 may serve as welding contact faces.
  • the face 211 of the pole joint 21 may be concave downward and the width of the face 211 may conform to the width of the face 201.
  • the faces 201 and 211 of this embodiment help to provide a limit in the welding, so that the feature size of the welded component meets the requirements.
  • Figure 16 shows a schematic diagram of a pole joint selection scheme for the circuit breaker 1 in accordance with an embodiment of the present invention.
  • the circuit breaker can include three conductive contacts, with the right two contacts being connected in series (starting from the end of the intermediate moving contact to the end of the right stationary contact).
  • the end of the movable contact may be provided with a conductive connecting plate, which may be fixedly mounted on the base, and the conductive connecting plate may have a preset threaded hole.
  • the right static contact is divided into a pole joint portion and a contact portion, the pole joint portion is screwed with a preset threaded hole on the movable contact end connecting plate, and the pole joint portion is assembled in the lower layer space of the base; the contact portion As a static contact, it is mounted in the upper space of the base.
  • the double-layered pole structure can shorten the path of the conductive loop (as shown by the thick S-shaped dotted line in the upper right corner of Fig. 16).
  • Figure 17 shows a schematic diagram of a pole point selection scheme for a conventional circuit breaker.
  • the circuit breaker also has three conductive contacts, and the right two poles are connected in series (starting from the end of the intermediate moving contact to the end of the right stationary contact, as indicated by the thick solid line).
  • the pole is in a spatial plane. If the pole structure is realized and the insulation safety of the pole is met, a string is required between the middle pole and the right pole along the direction shown by the thick solid line. Take the cable trough. Obviously, the conductive loop of the scheme is longer, and the series connection of the wiring troughs will increase the size of the circuit breaker.
  • Figure 18 shows a schematic diagram of a pole point selection scheme for another conventional circuit breaker.
  • the circuit breaker also has three conductive contacts, and the right poles are connected in series (starting from the end of the intermediate moving contact to the end of the right moving contact).
  • the program also uses the same layer connection method. Similar to the solution of Fig. 17, this solution not only lengthens the entire conductive loop, but also increases the overall size of the circuit breaker.
  • the double-layer pole-connected circuit breaker 1 can reduce the contact resistance, and can freely select the pole point that is most beneficial to the conductive loop, compared with the conventional pole-connected method.
  • the pole joints are isolated from the arc zone, ensuring the design of the connected function even under short-circuit conditions, and there is no abnormal loop condition caused by arcing splash.
  • This pole connection method can improve the insulation level and make the circuit breaker open.
  • the size of the device is smaller.
  • the circuit breaker provided by the embodiment of the present application has a rated working voltage of up to 1500V and can realize a large creepage distance through an easy-to-manufacture creeper structure.

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Abstract

一种断路器，包括静触头（7）和基座（10），其中，静触头（7）包括触头部（714）和极连部（712），静触头（7）固定地安装在基座（10）上，触头部（714）处于基座（10）的上侧，极连部（712）处于基座（10）的下侧，断路器实现了双层结构。该断路器的双层极联结构可减小接触电阻，选择最有利于导电回路的极连点，在短路条件下也能确保设计的极联功能，该极联方式可提高绝缘水平，使断路器的外形尺寸更小。

Description

断路器 技术领域
本发明涉及断路器领域，具体涉及一种低压直流断路器。
背景技术
进入新世纪以来，太阳能光伏产业已成为当今世界最受关注的新兴产业之一，光伏发电不需要原料，无气体排放，属于“绿色”产业，具有无污染、安全、长寿命、维护简单、资源永不枯竭和资源分布广泛等特点，被认为21世纪最重要的新能源，可广泛的应用于航天、通信、能源、农业、公共设施、交通及民宅等。
随着新能源行业快速发展，直流技术随之受到越来越广泛的应用，特别是太阳能发电系统的工作电压越来越高，其工作电压通常会达到1000伏，再者太阳能发电一般都在环境较恶劣的荒漠或者人烟稀少的场所，对断路器的绝缘提出了更苛刻的要求。在国家大力推广新能源产业的同时，提出节能降耗的指标，对于低压断路器而言节能降耗也是一项非常重要的工作。因此额定工作电压低、高能耗的断路器已经不能完全满足用户更高的需求。
中国发明专利申请公开号CN 102592903 A公开了一种预置接线方式断路器，在断路器基座内将多个断点串联。这种预置接线方式的断路器无需用户自行外接线串联，直接与断路器预置的接线板连接即可。
发明内容
根据一种实施例，本申请提供了一种断路器，包括静触头和基座，其中，静触头包括触头部和极连部，静触头固定地安装在基座上，触头部处于基座的上侧，极连部处于基座的下侧，从而实现双层结构。
附图说明
图1为根据本发明的实施例，断路器的内部极联结构组装轴测图；
图2为根据本发明的实施例，断路器的上层轴测图；
图3为根据本发明的实施例，断路器的下层轴测图；
图4为根据本发明的实施例，断路器在去除基座和脱扣单元后的上层轴测图；
图5为根据本发明的实施例，断路器在去除基座和脱扣单元后的下层轴测图；
图6为根据本发明的实施例，断路器的静触头与基座正面的装配轴测图；
图7为根据本发明的实施例，断路器的静触头与基座背面的装配轴测图；
图8为根据本发明的实施例的静触头组成轴测图；
图9为根据本发明的实施例的静触头主体部分轴测图；
图10为根据本发明的实施例，基座的正面轴测图；
图11为根据本发明的实施例，基座的剖面视图；
图12为根据本发明的实施例，基座的背面轴测图；
图13为根据本发明的另一种实施例的静触头的轴测图；
图14为图13所示的静触头的极联部轴测图；
图15为图13所示的静触头的触头部轴测图；
图16为根据本发明的实施例，断路器的极联点选择方案原理图；
图17-图18为传统断路器的极联点选择方案原理图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，以下结合附图和具体实施例，对本发明进一步详细说明。
图1示出了根据本发明一种示例性实施例的双层极联结构断路器1的内部极联结构组装轴测图。在该实施例中，断路器1构成两极三断点结构的低压直流断路器。在其他实施例中，断路器可以包括另外的电极和/或断点数目。断路器1主要包括基座10和静触头7。在该实施例中，基座10 上可以容纳以下结构：第一极，包括左侧极上端静触头2、动触头3、下端脱扣单元4；第二极，包括彼此串联的中间极和右侧极，其中，上端的中间极静触头8、中间极动触头9可以连接到右侧极静触头7、右侧极动触头6、第二极下端脱扣单元5。该图示出了当从基座10的内部观察时，双层极联结构断路器1的上层(即基座10的上侧)的情形。由图1可见，右侧极静触头7的触头部(参见图6-9中的标号714)处于基座10的上层，与中间极静触头8同处于一个层面空间上，静触头7的触头部与动触头9配合实现断路器的接通/断开。在该实施例中，静触头2、8、7处于静止，动触头3、动触头9、动触头6可以通过操作机构来分合。图2示出了从图1的断路器1除去动触头3之后的上层轴测图。
图3示出了当从基座10的底部观察时，断路器1的下层轴测图。，第二极静触头7的极联部(参见图6-9中的标号712)处于基座10的下层(即基座10的下侧)，与极静触头8不在同一个空间层面。静触头7的极联部用于和极动触头9的连接部(参见图4、5中的标号11)连接，形成两极的串联结构。在该实施例中，右侧极上、下侧端子没有设置接线排。这样可防止断路器并排安装时极间电弧形成短路。
图4、图5示出了去除基座10和脱扣单元5后的上层、下层极联示意图，中间极动触头9的连接部11可以与右侧极静触头7的极联部导电连接(在图示的实施例中是通过螺钉12进行导电连接，但也可以通过其他方式连接)。
图6、图7示出了双层极联结构断路器的静触头7与基座10的装配。如图6所示，静触头7从基座10的下层装入，在静触头7装入的过程中不断的变化静触头7与基座10下层平行面的角度，这样的角度变化有助于静触头7安装到基座10，直至静触头7容纳到基座10下层的凹部19中。静触头7安装在基座10上，并可以通过螺钉13进行固定。静触头7的触头部714处于基座10的上侧，静触头7的极联部712处于基座10的下侧，从而实现双层极联。
通过该实施例中的极联方式，可减小接触电阻，可自由选择最有利于导电回路的极连点，再者极联部与弧区隔离，实现即使在短路条件下也能 确保设计的极联功能，不会发生因飞弧喷溅导致的异常回路情况，该极联方式可提高绝缘水平，使断路器的外形尺寸更小。
图8示出了根据本发明的示例性实施例，与静触头7有关的结构。静触头可以包括触头部714和极联部712。触头部714可以容纳电触头73、引弧部74，所述的电触头73和引弧部74固接在触头部714的向下弯曲的部分72的顶面上。电触头73例如可以通过焊接等方式固定在触头部714上，引弧部74例如也可通过焊接、铆接或者螺纹连接等方式固定在触头部714上。在图示的实施例中，极联部712上分布3个孔，孔711用作与动触头9连接部11通过螺钉12连接实现极联，另两个孔713是用于将静触头7固定地安装到基座10上(例如通过螺纹13连接)。除了孔713外，在其他实施例中，极联部712上可以设置用于将静触头7固定于基座10的其他结构。
图9示出了从静触头7去除电触头73和引弧部74之后的主体部分71。触头部714向背离极连部712的方向(在图9中为左侧)延伸，其延伸的端部为窄条结构，电流在该窄条结构处发生电流收缩，触头间会产生电动斥力，即该特征有利于触头电动斥力的增加，当断路器所在回路短路时，故障发生时触头将会被加速斥开，这样可保证断路器在很短时间内断开，使得短路电流在达到其预期峰值前分断，获得较好的限流系数。在一种实施例中，静触头的极联部712和触头部714可以由铜(例如整块铜板)制成，表面可以进行镀银处理。
图10示出了基座10的局部轴测图，图11示出了基座10的剖视图。由图10和图11可见，基座10上可以包括用于支撑静触头7的支撑结构，例如凸台15。在该实施例中，凸台15大体为方锥状结构，但是支撑结构也可以采用其他形状，如大体上圆锥、圆柱或棱柱等。方锥的上表面151可以是倾斜的，倾斜角与静触头7触头部714向下弯曲的部分72的下表面角度一致，方锥结构151高度可以与静触头7触头部714向下弯曲的部分72的下表面重合。该支撑结构可以保证触头超行程的稳定性。
图12示出了当从基座10的底部观察时，断路器1的下层轴测图。由图 12可见，基座10背面的进线侧和出线侧(在图中为上、下端)可以设置有适当深度和宽度的槽16。形成槽16有利于模具制造。图12还示出了基座10底面上用于容纳静触头7极联部712的凹部19，该凹部19的尺寸与静触头7极联部712大致相符。在凹部19的外轮廓边缘可以有一周向外(沿基座10的表面法向)凸出的筋18。该筋18的高度例如可以是2-5mm。筋18可增加静触头7极联部712与外部的爬电距离和电气间隙。基座10上可以设置有两个孔17，该孔17与静触头7极联部孔713配合使用，用于将静触头7固定在基座10上。
图13-15图示了双层极联结构的静触头的另一种成型方案。
如图13所示，静触头包括触头部20和极联部21，触头部20和极联部21可以被分别制造，并通过例如焊接等方式连接在一起。在图13所示的实施例中，触头部20和极联部21形成彼此固定在一起的分体式结构，该分体式结构有利于模具制造。
图14、图15示出了图13中的静触头触头部20的面201和极联部21的面211。在通过焊接方式将触头部20和极联部21固定在一起的示例中，面201和面211可以作为焊接接触面。在一种实施例中，极联部21的面211可以向下凹，并且面211的宽度可以与面201宽度相符。该实施例的面201和211有助于在焊接中提供限位作用，使焊接后的件特征尺寸满足要求。
图16示出了根据本发明的实施例，断路器1的极联点选择方案原理图。由图16可见，断路器可以包括三个导电触头，其中右侧两个触头相串联(由中间动触头的末端开始，到右侧静触头结束)。动触头的末端可以设置有导电连接板，该连接板可固定的安装到基座上，导电连接板上可以有预置的螺纹孔。右侧静触头分为极联部和触头部，极联部与动触头末端连接板上的预置螺纹孔进行螺纹连接，并且极联部装配在基座的下层空间；触头部作为静触头用，装配在基座的上层空间。由图16可见，该双层极联结构可以缩短导电回路的路径(如图16右上角的S形粗虚线所示)。
图17示出了一种传统断路器的极联点选择方案原理图。在图17的方案 中，断路器也具有三个导电触头，并且右侧两极相串联(由中间动触头末端开始，到右侧静触头结束，如粗实线所示)。但是在图17中，极联处于一个空间层面，若使极联结构得以实现并满足极联的绝缘安全性，需在中间极与右侧极之间沿粗实线所示的走向设置一个串接走线槽。显然，该方案的导电回路更长，且设置的串接走线槽将使断路器外形尺寸加大。
图18示出了另一种传统断路器的极联点选择方案原理图。在图18的方案中，断路器也具有三个导电触头，并且右侧两极相串联(由中间动触头末端开始，到右侧动触头末端结束)。该方案也采用的是同层极联方式。与图17的方案类似，该方案不但使整个导电回路变长，也会使断路器的整体尺寸加大。
通过以上三种方案的对比，与传统的极联方式相比，根据本申请实施例的双层极联结构断路器1可减小接触电阻，可自由选择最有利于导电回路的极连点，再者极连部与弧区隔离，实现即使在短路条件下也能确保设计的极连功能，不会发生因飞弧喷溅导致的异常回路情况，该极连方式可提高绝缘水平，使断路器的外形尺寸更小。本申请的实施例提供的断路器额定工作电压可达DC1500V,并能通过易于制造的爬电槽结构来实现较大的爬电距离。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步的详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种断路器，包括静触头(7)和基座(10)，其特征在于：所述静触头(7)包括触头部(714)和极连部(712)，所述静触头(7)固定地安装在基座(10)上，所述触头部(714)处于基座(10)的上侧，所述极连部(712)处于基座(10)的下侧，从而实现双层结构。
  2. 根据权利要求1所述的断路器，其特征在于：所述触头部(714)和所述极连部(712)是一体结构，或者是彼此固定在一起的分体式结构。
  3. 根据权利要求1所述的断路器，其特征在于：所述触头部(714)包括电触点(73)和引弧部(74)。
  4. 根据权利要求1所述的断路器，其特征在于：所述触头部(714)向背离所述极连部(712)的方向延伸，其延伸的端部为窄条结构。
  5. 根据权利要求1所述的断路器，其特征在于：所述极连部(712)包括用于将静触头(7)固定于基座(10)的结构(713)。
  6. 根据权利要求1所述的断路器，其特征在于：所述静触头的主体部分(71)由铜制成，表面进行镀银处理。
  7. 根据权利要求1所述的断路器，其特征在于：所述基座(10)上设置用于支撑所述静触头(7)的支撑结构(15)，所述支撑结构(15)的上表面为倾斜平面，该平面的角度与所述静触头(7)的触头部(714)上表面的角度一致。
  8. 根据权利要求1所述的断路器，其特征在于：所述基座(10)上在进线侧和出线侧中的至少一者处设有槽(16)，所述槽(16)处在基座(10)的下侧。
  9. 根据权利要求1所述的断路器，其特征在于：所述基座(10)上包括凹部(19)，所述凹部(19)的尺寸大致与极连部(712)相对应，用于容纳静触头(7)的极连部(712)。
  10. 根据权利要求9所述的断路器，其特征在于：所述凹部(19)的 边缘有沿所述基座(10)的表面法向延伸的筋(18)。
PCT/CN2015/100122 2015-04-16 2015-12-31 断路器 WO2016165402A1 (zh)

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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
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