WO2023226673A1 - 漏电保护单元以及剩余电流保护断路器 - Google Patents

漏电保护单元以及剩余电流保护断路器 Download PDF

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Publication number
WO2023226673A1
WO2023226673A1 PCT/CN2023/090952 CN2023090952W WO2023226673A1 WO 2023226673 A1 WO2023226673 A1 WO 2023226673A1 CN 2023090952 W CN2023090952 W CN 2023090952W WO 2023226673 A1 WO2023226673 A1 WO 2023226673A1
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WIPO (PCT)
Prior art keywords
protection unit
leakage protection
lock
reset plate
tripping
Prior art date
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PCT/CN2023/090952
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English (en)
French (fr)
Inventor
贾永帅
周燕海
张协利
赖森林
陈闽
林桌勇
Original Assignee
厦门宏发开关设备有限公司
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Publication of WO2023226673A1 publication Critical patent/WO2023226673A1/zh

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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
    • 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
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
    • 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

Definitions

  • the present disclosure relates to the technical field of circuit breaker manufacturing, specifically to a residual current protection circuit breaker, and in particular to improvements in the leakage protection unit thereof.
  • Residual current protection circuit breakers generally include a circuit breaker unit and a leakage protection unit.
  • the circuit breaker unit realizes the switching of the circuit, as well as the overload and short-circuit protection of the circuit. It drives the circuit breaker mechanism to open and leakage through the action of the thermal trip mechanism and the electromagnetic mechanism respectively.
  • the protection unit detects the leakage current in the loop through the zero-sequence current transformer, and then through the signal processing of the control circuit board, the output voltage of the control circuit board pushes out the release push rod in the leakage protection unit (the zero-sequence current mutual inductance
  • the induced electromotive force induced by the circuit breaker is output to the tripper), thereby promoting the action of the tripping mechanism of the leakage protection unit, and finally causing the circuit breaker unit to open, thereby protecting the circuit.
  • Cipheral Patent Publication No. CN107424879A discloses a leakage protection unit whose tripping action is an unfixed eccentric action. The tripping action process is improved, making the tripping more labor-saving, and the function of the leakage protection unit is safe and reliable. However, during the subsequent research and development, it was discovered that during the tripping process of this product, the point of action of the reset plate on the lock thrust force is easily offset, which makes the tripping force easy to change, resulting in unstable tripping force.
  • the present disclosure proposes a structurally optimized leakage protection unit, and also proposes a residual current protection circuit breaker having the leakage protection unit.
  • a leakage protection unit which includes a base and a handle installed in the base, a tripping mechanism and a first electromagnetic tripper.
  • the handle and the first electromagnetic tripper are both linked and connected to the tripping mechanism. , to drive the manual opening and closing and the tripping opening of the tripping mechanism respectively.
  • the tripping mechanism includes a tripping rod, a tripping buckle, a lock catch and a reset plate.
  • the handle, tripping rod, lock catch and The reset plate is rotatably connected to the base, the lock buckle and the reset plate share a pivot axis, the jump buckle is pivotally connected to the trip lever, and the handle is linked to the jump buckle connection, the lock buckle is provided with a locking portion, the jump buckle is also provided with a locked portion that can cooperate with the locking portion, and the reset plate is provided on a side of the first electromagnetic release side to accept the push of the output rod of the first electromagnetic release, thereby turning the lock to release the lock.
  • the locking part and the locked part are J-shaped hook structures that can interlock with each other.
  • the leakage protection unit further includes a first elastic member, one end of the first elastic member serves as It is used for the base, and the other end acts on the reset plate to rely on its elastic force to maintain the contact between the reset plate and the output rod of the first electromagnetic release, and realize the rotation reset of the reset plate.
  • the leakage protection unit further includes a second elastic member and a third elastic member.
  • One end of the second elastic member acts on the base and the other end acts on the lock, so as to achieve the desired function. Rotational reset of the lock; one end of the third elastic member acts on the base, and the other end acts on the handle to realize the rotational reset of the handle.
  • a pushing part is provided on the reset plate, and a pushing receiving part is provided on the lock buckle, and the pushing part is pushed against the pushing receiving part to achieve the reset.
  • the plate moves the lock.
  • the pushing part and the pushing receiving part are respectively bump structures integrally formed on the reset plate and the lock buckle.
  • the reset plate is further provided with an arc-shaped groove
  • the pushing part is provided at one end of the arc-shaped groove
  • the pushing receiving part extends into the arc-shaped groove.
  • the present disclosure has the following beneficial effects:
  • the reset plate and the lock catch share a pivot axis, so that when the reset plate rotates to unlock the lock catch, its pushing point against the lock catch will not shift. , there will be no mutual slippage when the locking part and the locked part are released, further improving the stability of the tripping force and the reliability of the tripping process.
  • Figure 1 is a three-dimensional schematic diagram of a residual current protection circuit breaker in an embodiment of the present disclosure
  • Figure 2 is an exploded view of the leakage protection unit of the residual current protection circuit breaker in the embodiment of the present disclosure
  • Figure 3 is a three-dimensional schematic view of the leakage protection unit in the embodiment of the present disclosure.
  • Figure 4 is a front view (opening) of the leakage protection unit in the embodiment of the present disclosure
  • Figure 5 is a partial enlarged view of position A in Figure 4.
  • Figure 6 is a front view (closing) of the leakage protection unit in the embodiment of the present disclosure.
  • Figure 7 is a perspective view of a circuit breaker unit according to an embodiment of the present disclosure.
  • Figure 8 is a schematic diagram of the cooperation between the circuit breaker pole lock and the trip lever according to the embodiment of the present disclosure
  • Figure 9 is a schematic diagram of the cooperation between the reset plate and the lock catch in the embodiment of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings. These drawings are part of the disclosure of the present disclosure, and are mainly used to illustrate the embodiments, and can be used to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art will be able to understand other possible embodiments and the advantages of the present disclosure.
  • the components in the figures are not drawn to scale and similar component symbols are typically used to identify similar components.
  • Example embodiments can may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Although relative terms, such as “upper” and “lower” are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience.
  • a residual current protection circuit breaker including a side-by-side pole-connected circuit breaker unit 10 and a leakage protection unit 20.
  • the circuit breaker unit 10 is used to realize the circuit opening.
  • the leakage protection unit 20 is used to detect the leakage current in the circuit and infer that the circuit unit 10 is opened through the action of the tripping mechanism, thereby protecting the circuit.
  • the leakage protection unit 20 may include a base 1, a handle 2, a tripping mechanism 50, a first electromagnetic tripper 8, a control circuit board 12 and a zero sequence current transformer 13.
  • the tripping mechanism 50 includes a trip lever 4, a jump buckle 5, a lock catch 6 and a reset plate 7.
  • the handle 2, the trip lever 4, the lock catch 6 and the reset plate 7 are all rotatably connected to the base 1.
  • the jump buckle 5 It is pivotally connected to the trip lever 4, where the pivot axis of the trip lever 4 and the base 1 is the axis V, and the pivot axis of the jump buckle 5 and the trip lever 4 is the axis P.
  • the axis V and the axis P are different. axis.
  • the handle 2 and the jump buckle 5 are connected through a linkage 3.
  • the lock buckle 6 is provided with a locking portion 61 (see Figure 5).
  • the jump buckle 5 is also provided with a locked portion 51 that can lock with the locking portion 61.
  • FIG 4-6 when the circuit breaker is in the open state ( Figure 4), turn the handle 2, and the linkage of the connecting rod 3 drives the tripper 5 to rotate around the axis P until the locked part 51 and the locking part 61 are tripped. 5 rotates and the lock buckle is engaged (buckle locking). At this time, the lock buckle 6 forms a limit to the jump buckle 5.
  • the locking part 61 provides the fulcrum of the jump buckle 5.
  • the tripping lever 4 rotates around the axis V.
  • the tripping rod 4 includes a linkage connection part 41 extending into the circuit breaker unit 10 .
  • the linkage connection part 41 cooperates with the operating mechanism 17 of the circuit breaker unit 10 to realize the closing of the circuit breaker unit 10 .
  • the zero-sequence current transformer 13 is used to detect the leakage current in the loop. When it detects the leakage current, it feeds back the signal to the control circuit board 12, which processes the signal and then issues instructions.
  • the first electromagnetic release 8 operates, and the reset plate 7 is provided on one side of the first electromagnetic release 8. When the output rod 81 of the first electromagnetic release 8 extends, the reset plate 7 can be pushed to rotate. The reset plate 7 is linked with the lock 6 at the same time. The reset plate 7 is pushed by the output rod 81 of the first electromagnetic release 8 and can be pushed against the lock 6, thereby causing the lock 6 to rotate clockwise to realize the lock 6. Unlocking of the locking part 51 and the locking part 61.
  • the tripping mechanism 50 quickly unlocks and opens, and the tripping lever 4 rotates and cooperates with the operating mechanism 17 of the circuit breaker unit 10 to realize the leakage protection unit 20 and the circuit breaker.
  • the circuit breaker unit 10 is tripped and opened.
  • the operating mechanism 17 includes a circuit breaker pole lock 170.
  • the circuit breaker pole lock 170 is provided with a lead-out portion 171.
  • the linkage connection portion 41 of the tripping rod 4 rotates. , toggle the lead-out part 171 to cause the circuit breaker pole lock 170 to trip and open the circuit breaker unit 10 .
  • This embodiment is also provided with a first elastic member 70, a second elastic member 40 and a third elastic member 42 (see Figure 2).
  • the first elastic member 70 , the second elastic member 40 and the third elastic member 42 are all torsion springs.
  • One end of the first elastic member 70 acts on the base 1 and the other end acts on the reset plate 7 to rely on its elastic force to maintain the position.
  • the reset plate 7 comes into contact with the output rod 81 of the first electromagnetic release 8, and realizes the rotation reset of the reset plate 7 after quick release, thereby providing a reset force for the output rod 81.
  • the second elastic member 40 has one end acting on the base 1 and the other end acting on the lock 6 to achieve the rotational reset of the lock 6 after quick release;
  • the third elastic member 42 has one end acting on the base 1 and the other end acting on the handle. 2. To realize the rotational reset of handle 2 after quick release.
  • the locked portion 51 and the locking portion 61 are J-shaped hook structures that can interlock with each other, so that the locking cooperation between the two is more stable and reliable.
  • the reset plate 7 and the lock 6 share a pivot axis R. Since the rotation centers of the reset plate 7 and the lock 6 are coincident, when the reset plate 7 rotates to unlock the lock 6 When the lock 6 is pushed, the point of action against the lock 6 will not be offset, and the locked portion 51 and the locking portion 61 will not slip against each other when unlocking, further improving the stability of the tripping force and the efficiency of the tripping process. reliable.
  • Figure 9 shows the specific structure of the cooperation between the reset plate 7 and the lock 6.
  • the reset plate 7 is provided with a pushing part 71
  • the lock 6 is provided with a push receiving part 62.
  • the reset plate 7 accepts the first electromagnetic trip. After the output rod 81 of the device 8 is pushed and then rotates around the pivot axis R, the pushing part 71 can push against the pushing receiving part 62, thereby causing the lock 6 to rotate, thereby unlocking the locked part 51 and the locking part 61 .
  • the pushing part 71 and the pushing receiving part 62 are bump structures integrally formed on the reset plate 7 and the lock buckle 6 respectively to facilitate production and manufacturing.
  • the pushing part 71 and the pushing receiving part 62 may be in any shape capable of contacting each other, such as plate shape, rod shape, etc.
  • the reset plate 7 is also provided with an arc-shaped groove 72
  • the pushing part 71 is provided at one end of the arc-shaped groove 72
  • the pushing receiving part 62 extends into the arc-shaped groove 72, then During assembly, the relative position of the reset plate 7 and the lock 6 can be established to a certain extent by matching the push receiving portion 62 with the arc-shaped groove 72 to ensure their coaxiality during assembly.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

一种漏电保护单元和剩余电流保护断路器，包括基座（1）以及安装设置在基座（1）内的手柄（2）、脱扣机构（50）和第一电磁脱扣器（8），所述手柄（2）和第一电磁脱扣器（8）均和所述脱扣机构（50）联动连接，以分别驱动所述脱扣机构（50）的手动合闸以及脱扣分闸，在脱扣机构（50）中复位板（7）和锁扣（6）共用一个枢接轴（R），从而在复位板（7）转动解锁锁扣（6）时，其对锁扣（6）的推抵作用点不会发生偏移，锁定部（61）和被锁定部（51）的解扣也不会存在相互滑移，进一步提高脱扣力的稳定和脱扣过程的可靠。

Description

漏电保护单元以及剩余电流保护断路器
本公开要求于2022年5月27日提交的申请号为202210590003.X的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及断路器制造技术领域，具体涉及一种剩余电流保护断路器，尤其涉及其中漏电保护单元的改进。
背景技术
剩余电流保护断路器一般包括断路器单元和漏电保护单元，断路器单元实现回路的通断，以及回路的过载和短路保护，分别通过热脱扣机构及电磁机构动作推动断路器机构分闸，漏电保护单元则通过零序电流互感器检测出回路中的漏电电流，再经控制线路板的信号处理，由控制线路板输出电压使漏电保护单元中的脱扣器推杆推出(将零序电流互感器感应出的感应电动势输出给脱扣器)，从而推动漏电保护单元的脱扣机构动作，最终使断路器单元分闸，从而保护电路。
中国专利公开号CN107424879A公开了一种跳扣动作为不定点的偏心动作的漏电保护单元，改进了脱扣动作过程，使得脱扣更加省力，漏电保护单元的功能安全可靠。但在后续的研发中，发现了该产品在脱扣过程中，复位板对锁扣推力的作用点易发生偏移，从而使脱扣力易发生变化，导致脱扣力不稳定。
发明内容
因此，针对上述问题，本公开提出一种结构优化的漏电保护单元，还提出具有该漏电保护单元的剩余电流保护断路器。
本公开采用如下技术方案实现：
本公开提出漏电保护单元，包括基座以及安装设置在基座内的手柄、脱扣机构和第一电磁脱扣器，所述手柄和第一电磁脱扣器均和所述脱扣机构联动连接，以分别驱动所述脱扣机构的手动分合闸以及脱扣分闸，所述脱扣机构包括脱扣杆、跳扣、锁扣和复位板，所述手柄、脱扣杆、锁扣和复位板均可转动地枢设连接在所述基座上，所述锁扣和复位板共用一个枢接轴，所述跳扣与所述脱扣杆枢设连接，所述手柄与跳扣联动连接，所述锁扣上设有一锁定部，所述跳扣上还设有可与所述锁定部锁扣配合的被锁定部，所述复位板设置在所述第一电磁脱扣器的一侧，以接受所述第一电磁脱扣器的输出杆的推动，从而拨动所述锁扣以解除所述锁扣配合。
在本公开的一实施例中，所述锁定部和被锁定部是可相互钩扣的J型弯钩状结构。
在本公开的一实施例中，漏电保护单元还包括第一弹性件，所述第一弹性件一端作 用于所述基座，另一端作用于所述复位板，以依靠其弹性力保持所述复位板和第一电磁脱扣器的输出杆的接触，并实现复位板的转动复位。
在本公开的一实施例中，漏电保护单元还包括第二弹性件和第三弹性件，所述第二弹性件一端作用于所述基座，另一端作用于所述锁扣，以实现所述锁扣的转动复位；所述第三弹性件一端作用于所述基座，另一端作用于所述手柄，以实现所述手柄的转动复位。
在本公开的一实施例中，在所述复位板上设有推动部，在所述锁扣上设有推动接受部，以所述推动部推抵在所述推动接受部上实现所述复位板对所述锁扣的拨动。
在本公开的一实施例中，所述推动部和推动接受部分别是一体成型在所述复位板和锁扣上的凸块结构。
在本公开的一实施例中，所述复位板上还设有一弧形凹槽，所述推动部设置在所述弧形凹槽的一端，所述推动接受部伸入该弧形凹槽中。
本公开具有以下有益效果：本公开的脱扣机构中，复位板和锁扣共用一个枢接轴，从而在复位板转动解锁锁扣时，其对锁扣的推抵作用点不会发生偏移，锁定部和被锁定部的解扣也不会存在相互滑移，进一步提高脱扣力的稳定和脱扣过程的可靠。
附图说明
通过参照附图详细描述其示例实施例，本公开的上述和其它特征及优点将变得更加明显。
图1是本公开实施例中剩余电流保护断路器的立体示意图；
图2是本公开实施例中剩余电流保护断路器的漏电保护单元的爆炸图；
图3是本公开实施例中漏电保护单元的立体示意图；
图4是本公开实施例中漏电保护单元的正视图(分闸)；
图5是图4中A处的局部放大图；
图6是本公开实施例中漏电保护单元的正视图(合闸)；
图7是本公开实施例中断路器单元的立体示意图；
图8是本公开实施例中断路器极锁扣和脱扣杆配合的示意图；
图9是本公开实施例中复位板和锁扣配合的示意图。
具体实施方式
现在将参考附图更全面地描述示例实施例。这些附图为本公开揭露内容的一部分，其主要用以说明实施例，并可配合说明书的相关描述来解释实施例的运作原理。配合参考这些内容，本领域普通技术人员应能理解其他可能的实施例以及本公开的优点。图中的组件并未按比例绘制，而类似的组件符号通常用来表示类似的组件。示例实施例能够 以多种形式实施，且不应被理解为限于在此阐述的实施例。虽然本说明书中使用相对性的用语，例如“上”、“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。其他相对性的用语，例如“顶”、“底”等也作具有类似含义。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
参阅图1-2所示，作为本公开的优选实施例，提供一种剩余电流保护断路器，包括并排极联的断路器单元10和漏电保护单元20，断路器单元10用于实现回路的通断，漏电保护单元20用于检测回路中的漏电电流，并通过脱扣机构动作推断路器单元10分闸，从而保护电路。
如图2-7所示，漏电保护单元20可以包括基座1、手柄2、脱扣机构50、第一电磁脱扣器8、控制线路板12和零序电流互感器13，该脱扣机构50包括脱扣杆4、跳扣5、锁扣6和复位板7，手柄2、脱扣杆4、锁扣6和复位板7均可转动地枢设连接在基座1上，跳扣5与脱扣杆4枢设连接，其中，脱扣杆4与基座1的枢接轴为轴V，跳扣5与脱扣杆4的枢接轴为轴P，轴V和轴P不同轴。手柄2与跳扣5通过连杆3联动连接，锁扣6上设有一锁定部61(参见图5)，跳扣5上还设有可与锁定部61锁扣配合的被锁定部51。如图4-6，在断路器分闸状态下(图4)，拨动手柄2，通过连杆3的联动带动跳扣5绕轴P转动，直至被锁定部51和锁定部61因跳扣5的转动而锁扣配合(搭扣锁定)，此时锁扣6形成对跳扣5的限位，锁定部61提供跳扣5的支点，在手柄2的持续作用力下，跳扣5连带着脱扣杆4绕轴V转动。如图2，脱扣杆4包括伸入到断路器单元10内的联动连接部41，该联动连接部41和断路器单元10的操作机构17相配合，实现断路器单元10的合闸。
如图4-5所示，零序电流互感器13用于检测回路中的漏电电流，当其检测到漏电电流时，反馈信号至控制线路板12，控制线路板12信号处理，再发出指令使第一电磁脱扣器8动作，复位板7设置在第一电磁脱扣器8的一侧，当第一电磁脱扣器8的输出杆81伸出时能够推动复位板7转动。该复位板7同时和锁扣6联动，复位板7接受第一电磁脱扣器8输出杆81的推动后能够推抵作用在锁扣6上，从而拨动锁扣6顺时针转动，实现被锁定部51和锁定部61的解锁。被锁定部51和锁定部61的锁扣配合解除之后，脱扣机构50快速解扣分闸，脱扣杆4转动并与断路器单元10的操作机构17相配合，实现漏电保护单元20和断路器单元10的脱扣分闸。具体地，如图8，操作机构17包括一断路器极锁扣170，断路器极锁扣170上设有一引出部171，脱扣机构50解扣时，脱扣杆4的联动连接部41转动，拨动引出部171使断路器极锁扣170实现断路器单元10脱扣分闸。
为了对各个转动部件提供复位力，并通过该复位力使被锁定部51和锁定部61解锁 时脱扣机构50能够快速解扣，本实施例还设有第一弹性件70、第二弹性件40和第三弹性件42(参见图2)，作为一种示例性的实施方案，本实施例中第一弹性件70、第二弹性件40和第三弹性件42均为扭簧，第一弹性件70一端作用于基座1，另一端作用于复位板7，以依靠其弹性力保持复位板7和第一电磁脱扣器8的输出杆81的接触，并实现快速解扣后复位板7的转动复位，从而为输出杆81提供复位力。第二弹性件40一端作用于基座1，另一端作用于锁扣6，以实现快速解扣后锁扣6的转动复位；第三弹性件42一端作用于基座1，另一端作用于手柄2，以实现快速解扣后手柄2的转动复位。
如图5所示，在本实施例中，被锁定部51和锁定部61是可相互钩扣的J型弯钩状结构，以使得二者的锁扣配合更加稳定可靠。
尤为重要的是，在本实施例中，复位板7和锁扣6共用一个枢接轴R，那么由于复位板7和锁扣6的转动中心是重合的，在复位板7转动解锁锁扣6时，其对锁扣6的推抵作用点就不会发生偏移，被锁定部51和锁定部61的解扣也不会存在相互滑移，进一步提高脱扣力的稳定和脱扣过程的可靠。
图9示出了复位板7和锁扣6配合的具体结构，其中在复位板7上设有推动部71，在锁扣6上设有推动接受部62，复位板7接受第一电磁脱扣器8输出杆81的推动后进而发生绕枢接轴R的转动后，该推动部71能够推抵推动接受部62，从而拨动锁扣6转动，实现被锁定部51和锁定部61的解锁。
本实施例中，推动部71和推动接受部62分别是一体成型在复位板7和锁扣6上的凸块结构，以便于生产和制造。在其他实施例中推动部71和推动接受部62可以是任意的能够相互抵接的形状，如板状、杆状等。更进一步的，如图9，复位板7上还设有一弧形凹槽72，推动部71设置在弧形凹槽72的一端，推动接受部62伸入该弧形凹槽72中，那么在装配时，通过将推动接受部62和弧形凹槽72的配合，即可在一定程度上确立复位板7和锁扣6的相对位置，保证二者在装配时的同轴度。
尽管结合优选实施方案具体展示和介绍了本公开，但所属领域的技术人员应该明白，在不脱离所附权利要求书所限定的本公开的精神和范围内，在形式上和细节上对本公开做出的各种变化，均落入本公开的保护范围。
应可理解的是，本公开不将其应用限制到本说明书提出的部件的详细结构和布置方式。本公开能够具有其他实施例，并且能够以多种方式实现并且执行。前述变形形式和修改形式落在本公开的范围内。应可理解的是，本说明书公开和限定的本公开延伸到文中和/或附图中提到或明显的两个或两个以上单独特征的所有可替代组合。所有这些不同的组合构成本公开的多个可替代方面。本说明书所述的实施例说明了已知用于实现本公开的最佳方式，并且将使本领域技术人员能够利用本公开。

Claims (10)

  1. 漏电保护单元，包括基座以及安装在基座内的手柄、脱扣机构和第一电磁脱扣器，所述手柄和第一电磁脱扣器均和所述脱扣机构联动连接，以分别驱动所述脱扣机构的手动分合闸以及脱扣分闸，其特征在于：所述脱扣机构包括脱扣杆、跳扣、锁扣和复位板，所述手柄、脱扣杆、锁扣和复位板均可转动地枢设连接在所述基座上，所述锁扣和复位板共用一个枢接轴，所述跳扣与所述脱扣杆枢设连接，所述手柄与跳扣联动连接，所述锁扣上设有一锁定部，所述跳扣上还设有能与所述锁定部锁扣配合的被锁定部，所述复位板设置在所述第一电磁脱扣器的一侧，以接受所述第一电磁脱扣器的输出杆的推动，从而拨动所述锁扣以解除所述锁扣配合。
  2. 根据权利要求1所述的漏电保护单元，其特征在于：所述锁定部和被锁定部是能相互钩扣的J型弯钩状结构。
  3. 根据权利要求1所述的漏电保护单元，其特征在于：还包括第一弹性件，所述第一弹性件一端作用于所述基座，另一端作用于所述复位板，以依靠其弹性力保持所述复位板和第一电磁脱扣器的输出杆的接触，并实现复位板的转动复位。
  4. 根据权利要求1所述的漏电保护单元，其特征在于：还包括第二弹性件，所述第二弹性件一端作用于所述基座，另一端作用于所述锁扣，以实现所述锁扣的转动复位。
  5. 根据权利要求1所述的漏电保护单元，其特征在于：还包括第三弹性件，所述第三弹性件一端作用于所述基座，另一端作用于所述手柄，以实现所述手柄的转动复位。
  6. 根据权利要求1-5任一项所述的漏电保护单元，其特征在于：在所述复位板上设有推动部，在所述锁扣上设有推动接受部，以所述推动部推抵所述推动接受部实现所述复位板对所述锁扣的拨动。
  7. 根据权利要求6所述的漏电保护单元，其特征在于：所述推动部是一体成型在所述复位板上的凸块结构。
  8. 根据权利要求6所述的漏电保护单元，其特征在于：所述推动接受部分别是一体成型在所述锁扣上的凸块结构。
  9. 根据权利要求7所述的漏电保护单元，其特征在于：所述复位板上还设有一弧形凹槽，所述推动部设置在所述弧形凹槽的一端，所述推动接受部伸入该弧形凹槽中。
  10. 剩余电流保护断路器，包括断路器单元和漏电保护单元，其特征在于：所述漏电保护单元是权利要求1-9任一所述的漏电保护单元。
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