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WO2018014504A1 - 一种漏电保护器 - Google Patents

一种漏电保护器 Download PDF

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Publication number
WO2018014504A1
WO2018014504A1 PCT/CN2016/111608 CN2016111608W WO2018014504A1 WO 2018014504 A1 WO2018014504 A1 WO 2018014504A1 CN 2016111608 W CN2016111608 W CN 2016111608W WO 2018014504 A1 WO2018014504 A1 WO 2018014504A1
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WO
WIPO (PCT)
Prior art keywords
contact
power
ground
cross arm
static contact
Prior art date
Application number
PCT/CN2016/111608
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English (en)
French (fr)
Inventor
邹建华
Original Assignee
中山市开普电器有限公司
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Publication date
Application filed by 中山市开普电器有限公司 filed Critical 中山市开普电器有限公司
Publication of WO2018014504A1 publication Critical patent/WO2018014504A1/zh

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    • 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 invention relates to a leakage protector.
  • the invention overcomes the deficiencies of the above technology, and provides a leakage protector with strong safety protection performance, simple structure, reasonable design, real-time monitoring of power cable leakage faults and cutting off the connection between the power source and the load, and having the ground
  • the line has the advantage of being connected to the fire zero line and then disconnected from the fire zero line.
  • a leakage protector includes a casing 1 having a reset button 11 and a test button 12 exposed on a surface thereof on a side of the casing 1, and the casing 1 is provided with a power supply static connection connected to a power input end Point 723 and a power moving contact 742 capable of being turned on or off with the power static contact 723 and the circuit board 5, and an output power line 8 is connected to the power moving contact 742, and the outer casing 1 is provided There is a trip device 7 for controlling the power moving contact 742 to be turned on or off with the power static contact 723, and the trip device 7 includes a slide 71 fixed in the outer casing 1 on the slide 71 The sliding button 72 is pressed by the reset button 11 to slide up and down.
  • the sliding fastener 72 is provided with a diagonal pushing surface 721 and a hook 722.
  • the outer casing 1 is further provided with the dynamic touch. Point 742 action horizontal
  • the yoke 74 is provided with a latching portion 741 which is engaged with the hook 722.
  • the outer casing 1 is hinged with one end on the other end of the cross arm 74 and the inclined surface 721. Between the dialing member 75 and the outer casing 1 , an elastic pressing member 751 for holding the dialing member 75 on the cross arm 74 is disposed between the sliding member 75 and the outer casing 1 .
  • a return spring 73 is disposed between the sliders 71, and a reset elastic member 743 is disposed between the movable contact 742 and the outer casing 1, and the cross arm 74 is opposite to the dial member 75.
  • a trip coil 76 electrically connected to the circuit board 5 and triggered by the test button 12 is provided, and a trip armature 761 and a movable armature 762 for pressing the cross arm 74 are disposed in the trip coil 76.
  • An ejection spring 763 is disposed between the movable armature 762 and the outer casing 1.
  • the elastic force of the return spring 73 is greater than the sum of the elastic forces of the elastic pressing member 751 and the ejection spring 763, and the elastic force of the ejection spring 763 More than the elastic force of the elastic pressing member 751, the outer casing 1 is further provided with a ground static contact 724 connected to the power input end and a ground wire capable of being connected to and disconnected from the ground static contact 724.
  • the movable contact 744 is provided with a ground return elastic member 77 between the ground moving contact 744 and the outer casing 1.
  • the sliding buckle base 72 is provided with a grounding static contact 724 and a ground wire before the pressing thereof
  • the movable contact 744 contacts the cross bar 725, and the ground static contact 724 and the ground moving contact 744 are in contact before the hook 722 is engaged with the latching position 741.
  • the power static contact 723 and the power moving contact 742 after the hook 722 is engaged with the card position 741, the power static contact 723 and the power moving contact 742 are driven by the armature 762 to push the cross arm 74 to release the hook 722 and the card position 741, and then disconnected.
  • the grounding static contact 724 and the grounding dynamic contact 744 are tripped by the hook 722 and the latching position 741 and are broken by the force of the return spring 73.
  • the dial 75 is L-shaped.
  • the upper right corner of the cross arm 74 is provided with a slope 745, and the upper left corner of the hook 722 is a sloped surface 728 that slides in cooperation with the slope 745.
  • the elastic pressing member 751 is a torsion spring.
  • the return elastic member 743 is a reed.
  • the trip device acts, cuts the connection between the three lines of the power supply and the load, and protects the personal safety and the power equipment;
  • the leakage device of the present invention can cut off the power supply to prevent a personal electric shock accident caused by the uninterrupted fire line; the leakage device of the present invention has the ground wire before the fire zero line joint and then the fire zero line.
  • Figure 1 is a perspective view of the present invention
  • Figure 2 is an exploded view of the present invention
  • FIG. 3 is a state diagram of the state before the trip coil of the present invention is energized and before the reset button is pressed;
  • Figure 5 is a state diagram of the trip coil of the present invention after being energized and the reset button being pressed;
  • FIG. 6 is a state diagram of the trip coil of the present invention after being energized and after the reset button is pressed;
  • Figure 7 is an exploded view of the sliding fastener, the cross arm and the dialing member of the present invention.
  • Figure 8 is a second exploded view of the sliding fastener, the cross arm and the dialing member of the present invention.
  • a leakage protector includes a casing 1 having a reset button 11 and a test button 12 exposed on a surface thereof on a side of the casing 1, and the casing 1 is provided therein.
  • a power supply static contact 723 connected to the power input terminal and capable of being turned on or off from the power supply static contact 723
  • the power moving contact 742 and the circuit board 5 are connected to the power moving contact 742 with an output power line 8 .
  • the outer casing 1 is provided with the power moving contact 742 and the power static contact 723.
  • the trip device 7 includes a slide 71 fixed in the outer casing 1, and the slide 71 is provided with a slide fastener that can slide up and down by the reset button 11 72.
  • the sliding fastener 72 is provided with a diagonal pushing surface 721 and a hook 722.
  • the outer casing 1 is further provided with a cross arm 74 for driving the movable contact 742.
  • the cross arm 74 is provided with a latching member 75 is engaged with the latching member 722, and the latching member 75 is configured to be engaged with the tilting surface 721 at one end of the cross arm 74.
  • An elastic pressing member 751 for holding the dialing member 75 on the cross arm 74 is disposed between the dialing member 75 and the outer casing 1.
  • a return spring 73 is disposed between the sliding fastener member 72 and the sliding seat 71.
  • a return elastic member 743 is disposed between the movable contact 742 and the outer casing 1, and the other side of the cross arm 74 opposite to the dial member 75 is electrically connected to the circuit board 5 and by The test button 12 triggers a power-off trip coil 76.
  • the trip armature 76 is provided with a static armature 761 and a top armature 74.
  • the movable armature 762 and the outer casing 1 are provided with a top.
  • the elastic force of the return spring 73 is greater than the sum of the elastic forces of the elastic pressing member 751 and the ejection spring 763, and the elastic force of the ejection spring 763 is greater than the elastic force of the elastic pressing member 751, the outer casing 1
  • a ground static contact 724 connected to the power input end and a ground moving contact 744 capable of being connected to and disconnected from the ground static contact 724, the ground moving contact 744 and the outer casing
  • a ground return elastic member 77 is disposed between the two, and the sliding buckle base 72 is provided with a cross bar 725 for blocking the ground wire static contact 724 from contacting the ground moving contact 744 before the pressing thereof.
  • the contact 724 and the ground moving contact 744 are in contact with each other before the hook 722 is engaged with the card position 741, and the power static contact 723 and the power moving contact 742 are in contact with each other after the hook 722 and the card position 741 are engaged.
  • the power static contact 723 and the power moving contact 742 push the cross arm 74 on the movable armature 762 to make the hook 722 and the card position
  • the contact is disconnected, and the grounding static contact 724 and the grounding movable contact 744 are disconnected when the hook 722 and the latching position 741 are released and the return spring 73 is biased.
  • the power static contact 723 and the power moving contact 742 are a fire zero line static contact and a fire zero line moving contact
  • the dialing member 75 is L-shaped
  • the elastic pressing member 751 is a torsion spring.
  • the return elastic member 743 is a reed.
  • the upper right corner of the cross arm 74 is provided with a slope 745, and the upper left corner of the hook 722 is a sloped surface 728 that slides in cooperation with the slope 745.
  • the movable contact 742 and the static contact 723 are in an off state, as shown in FIG. 3 and FIG. 4, when the power input has a power input,
  • the circuit board 5 is kept in communication with the power input terminal.
  • the trip coil 76 is energized, the static armature 761 generates magnetism, and the moving armature 762 is sucked back to the compression ejection spring 763.
  • the reset button 11 is pressed to drive the sliding fastener 72 to the direction. Moving downward, while compressing the rod return spring 73, the sliding fastener 72 is moved down to the hook 722 to be aligned with the card position 741.
  • the cross rod 725 is also moved downward, and the ground line is elasticized.
  • the member 77 is reset to make the grounding static contact 724 and the grounding dynamic contact 744 contact to connect the ground wire, and the cross arm 74 is pushed laterally by the lower end of the dialing member 75 to cause the card position 741 to buckle the hook 722, as shown in the figure. 5, after releasing the hand, the return spring 73 drives the sliding fastener 72 to move upward, and the inclined pushing surface 721 pushes the upper end of the dialing member 75 to the left, so that the lower end of the dialing member 75 is pressed against the cross arm 74, and the card position 741 is tight.
  • the buckle 722, the cross arm 74 moves the movable contact 742 upward, and the movable contact 742 is connected to the static contact 723.
  • Touch as shown in Figure 6, realizes the electrical connection between the load and the pin, and at the same time realizes that the ground wire is connected before the fire zero line.
  • the trip coil 76 When the test button 12 is pressed or the electric device leaks and the leakage value reaches the set value, the trip coil 76 is de-energized, the static armature 761 loses the magnetic force, the moving armature 762 is released, and the ejecting spring 763 is extended. Zhang will move the armature 762, the cross arm 74 passive armature 762 pushes the lateral movement to separate the card position 741 from the hook 722, and the return spring 73 drives the sliding fastener 72 to be upwardly reset.
  • the inclined pushing surface 721 pushes the upper end of the dialing member 75 to the left, so that the lower end of the dialing member 75 is pressed against the cross arm 74, and the inclined surface 745 and the inclined sliding surface 728 cooperate downwardly to slide down to the pressing armature 762, and the cross arm 74 is moved downward.
  • the elastic piece 743 is reset, the movable contact 742 is separated from the static contact 723, and the sliding fastener 72 is moved upward by the return spring 73, and the cross bar 725 is also moved upward, and the cross arm 725 drives the ground return elastic member.

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

一种漏电保护器，在用电设备出现漏电且达到漏电设定值时，脱扣装置（7）动作，切断电源火零地三线与负载之间的连接，起到保护人身安全和用电设备的作用，同时当火零地三线中任一电源线出现断路时，该漏电保护器能够切断电源，防止因火线未断而引发人身触电事故，该漏电保护器具有地线先于火零线接头接通后于火零线接头断开的优点。

Description

一种漏电保护器 [技术领域]
本发明涉及一种漏电保护器。
[背景技术]
目前，人们使用家用电器时，是将家用电器直接连接到市电电源上，当出现漏电时电源自动断开，存在安全隐患，另一方面，现有的一些漏电保护开关，结构不紧密，安全性低，容易出现短路故障，容易造成人身触电及使家用电器损坏的危险。
[发明内容]
本发明克服了上述技术的不足，提供了一种漏电保护器，具有安全保护性能强，结构简单，设计合理，能实时监测电源电缆漏电故障并能切断电源与负载之间的连接，并且具有地线先于火零线接通、后于火零线断开的优点。
为实现上述目的，本发明采用了下列技术方案：
一种漏电保护器，包括有外壳1，在所述外壳1一侧上设有外露于其表面的复位按钮11和测试按钮12，所述外壳1内设有与电源输入端相连的电源静触点723和能与所述电源静触点723接通或断开的电源动触点742及其线路板5，所述电源动触点742上连接有输出电源线8，所述外壳1内设有控制所述电源动触点742与电源静触点723接通或者断开的脱扣装置7，所述脱扣装置7包括有固定在外壳1内的滑座71，所述滑座71上设有由所述复位按钮11按压可上下滑动的滑动扣件72，在所述滑动扣件72上设有斜推面721和卡勾722，所述外壳1内还设有带动所述动触点742动作的横 担74，所述横担74上设有与所述卡勾722配合卡扣的卡位741，所述外壳1内铰接有一端顶在所述横担74上另一端与所述斜推面721配合拨动的拨动件75，所述拨动件75与所述外壳1之间设有保持拨动件75顶在横担74上的弹性顶压件751，所述滑动扣件72与所述滑座71之间设有复位弹簧73，在所述动触点742与所述外壳1之间设有复位弹性件743，所述横担74与所述拨动件75相对的另一侧设有与所述线路板5电连接并由所述测试按钮12触发断电的脱扣线圈76，在脱扣线圈76内设置有静衔铁761和顶压横担74的动衔铁762，所述动衔铁762与所述外壳1之间设有顶出弹簧763，所述复位弹簧73的弹力大于弹性顶压件751与所述顶出弹簧763的弹力之和，所述顶出弹簧763的弹力大于弹性顶压件751的弹力，所述外壳1上还设有与电源输入端相连的地线静触点724和能与所述地线静触点724接通与断开的地线动触点744，所述地线动触点744与外壳1之间设有地线复位弹性件77，所述滑动扣座72上设有在其按压前阻挡地线静触点724与地线动触点744接触的横杆725，所述地线静触点724与地线动触点744在卡勾722与卡位741扣合前接触，所述电源静触点723与电源动触点742在卡勾722与卡位741扣合后接触，所述电源静触点723与电源动触点742在动衔铁762推动横担74使卡勾722与卡位741脱扣后断开，所述地线静触点724与地线动触点744在卡勾722与卡位741脱扣且在复位弹簧73作用力下断开。
所述拨动件75为L形。
所述横担74的右上角设有斜面745，所述卡勾722的左上角为与所述的斜面745配合滑动的斜滑面728。
所述弹性顶压件751为扭簧。
所述复位弹性件743为簧片。
本发明的有益效果是：
本实用在用电设备出现漏电且达到漏电设定值时，脱扣装置动作，切开电源火零地三线与负载之间的连接，起到保护人身安全和用电设备的作用；同时当火零地三线中任一电源线出现断路时，本发明漏电装置能够切断电源，防止因火线未断而引发人身触电事故；本发明漏电装置具有地线先于火零线接头合后于火零线断开的优点。
[附图说明]
图1为本发明立体图；
图2为本发明分解图；
图3为本发明脱扣线圈通电前和复位按键按压前状态图之一；
图4为本发明脱扣线圈通电前和复位按键按压前状态图之二；
图5为本发明脱扣线圈通电后和复位按键按压时状态图；
图6为本发明脱扣线圈通电后和复位按键按压后状态图；
图7为本发明滑动扣件、横担以及拨动件分解图之一；
图8为本发明滑动扣件、横担以及拨动件分解图之二。
[具体实施方式]
下面结合附图与本发明的实施方式作进一步详细的描述：
如图1和图2所示，一种漏电保护器，包括有外壳1，在所述外壳1一侧上设有外露于其表面的复位按钮11和测试按钮12，所述外壳1内设有与电源输入端相连的电源静触点723和能与所述电源静触点723接通或断开 的电源动触点742及其线路板5，所述电源动触点742上连接有输出电源线8，所述外壳1内设有控制所述电源动触点742与电源静触点723接通或者断开的脱扣装置7，所述脱扣装置7包括有固定在外壳1内的滑座71，所述滑座71上设有可上下滑动由所述复位按钮11按压滑动的滑动扣件72，在所述滑动扣件72上设有斜推面721和卡勾722，所述外壳1内还设有带动所述动触点742动作的横担74，所述横担74上设有与所述卡勾722配合卡扣的卡位741，所述外壳1内铰接有一端顶在所述横担74上另一端与所述斜推面721配合拨动的拨动件75，所述拨动件75与所述外壳1之间设有保持拨动件75顶在横担74上的弹性顶压件751，所述滑动扣件72与所述滑座71之间设有复位弹簧73，在所述动触点742与所述外壳1之间设有复位弹性件743，所述横担74与所述拨动件75相对的另一侧设有与所述线路板5电连接并由所述测试按钮12触发断电的脱扣线圈76，在脱扣线圈76内设置有静衔铁761和顶压横担74的动衔铁762，所述动衔铁762与所述外壳1之间设有顶出弹簧763，所述复位弹簧73的弹力大于弹性顶压件751与所述顶出弹簧763的弹力之和，所述顶出弹簧763的弹力大于弹性顶压件751的弹力，所述外壳1上还设有与电源输入端相连的地线静触点724和能与所述地线静触点724接通与断开的地线动触点744，所述地线动触点744与外壳1之间设有地线复位弹性件77，所述滑动扣座72上设有在其按压前阻挡地线静触点724与地线动触点744接触的横杆725，所述地线静触点724与地线动触点744在卡勾722与卡位741扣合前接触，所述电源静触点723与电源动触点742在卡勾722与卡位741扣合后接触，所述电源静触点723与电源动触点742在动衔铁762推动横担74使卡勾722与卡位 741脱扣后断开接触，所述地线静触点724与地线动触点744在卡勾722与卡位741脱扣且复位弹簧73作用力下断开接触。
其中，电源静触点723与电源动触点742为火零线静触点和火零线动触点，所述拨动件75为L形，所述弹性顶压件751为扭簧，所述复位弹性件743为簧片。
图7和图8所示，所述横担74的右上角设有斜面745，所述卡勾722的左上角为与所述的斜面745配合滑动的斜滑面728。
当需要使用家用电器时，需要将家用电器连接到电源上，此时动触点742与静触点723处于断开状态，如图3和图4所示，当电源输入端有电源输入时，线路板5与电源输入端保持连通，脱扣线圈76通电时静衔铁761产生磁性，将动衔铁762吸回压缩顶出弹簧763，此时按下复位按钮11，使其带动滑动扣件72向下移动，同时压缩拉杆复位弹簧73，滑动扣件72下移至卡勾722与卡位741对齐，在滑动扣件72下移过程中，横杆725也随之向下移动，地线复位弹性件77复位使地线静触点724和地线动触点744接触，使地线连通，所述横担74被拨动件75下端推动横向移动使卡位741扣住卡勾722，如图5所示，松开手后，复位弹簧73带动滑动扣件72向上移动，斜推面721向左上推拨动件75的上端，使拨动件75下端压紧横担74，卡位741紧扣卡勾722，横担74带动动触点742向上移动，使动触点742与静触点723接触，如图6所示，实现了负载与插脚之间的电连接，同时实现了地线先于火零线接通。
当按下测试按钮12或用电设备出现漏电且漏电值达到设定值时，脱扣线圈76断电，静衔铁761失去磁力，动衔铁762被释放，顶出弹簧763伸 张将动衔铁762推出，横担74被动衔铁762推动横向移动使卡位741与卡勾722脱扣分离，复位弹簧73带动滑动扣件72向上复位，当卡位741与卡勾722脱离时，斜推面721向左上推拨动件75上端，使拨动件75下端压紧横担74，在斜面745与斜滑面728配合作用下向下滑至压紧动衔铁762，横担74下移，弹片743复位，动触点742与静触点723分离断开，同时滑动扣件72在复位弹簧73作用下向上移动，横杆725也随之向上移动，横担725带动地线复位弹性件77向上移动，使得地线静触点724和地线动触点744不接触，地线断开连接，实现了负载与电源输入端之间的断开，同时实现了实现地线后于火零线断开，有效地防止人身触电的危险，从而保护人身安全。

Claims (5)

  1. 一种漏电保护器，其特征在于：包括有外壳(1)，在所述外壳(1)一侧上设有外露于其表面的复位按钮(11)和测试按钮(12)，所述外壳(1)内设有与电源输入端相连的电源静触点(723)和能与所述电源静触点(723)接通或断开的电源动触点(742)及其线路板(5)，所述电源动触点(742)上连接有输出电源线(8)，所述外壳(1)内设有控制所述电源动触点(742)与电源静触点(723)接通或者断开的脱扣装置(7)，所述脱扣装置(7)包括有固定在外壳(1)内的滑座(71)，所述滑座(71)上设有由所述复位按钮(11)按压可上下滑动的滑动扣件(72)，在所述滑动扣件(72)上设有斜推面(721)和卡勾(722)，所述外壳(1)内还设有带动所述动触点(742)动作的横担(74)，所述横担(74)上设有与所述卡勾(722)配合卡扣的卡位(741)，所述外壳(1)内铰接有一端顶在所述横担(74)上另一端与所述斜推面(721)配合拨动的拨动件(75)，所述拨动件(75)与所述外壳(1)之间设有保持拨动件(75)顶在横担(74)上的弹性顶压件(751)，所述滑动扣件(72)与所述滑座(71)之间设有复位弹簧(73)，在所述动触点(742)与所述外壳(1)之间设有复位弹性件(743)，所述横担(74)与所述拨动件(75)相对的另一侧设有与所述线路板(5)电连接并由所述测试按钮(12)触发断电的脱扣线圈(76)，在脱扣线圈(76)内设置有静衔铁(761)和顶压横担(74)的动衔铁(762)，所述动衔铁(762)与所述外壳(1)之间设有顶出弹簧(763)，所述复位弹簧(73)的弹力大于弹性顶压件(751)与所述顶出弹簧(763)的弹力之和，所述顶出弹簧(763)的弹力大于弹性顶压件(751)的弹力，所述外壳(1)上还设有与电源输入端相连的地线静触点(724)和能与所述地线静触点(724)接通 与断开的地线动触点(744)，所述地线动触点(744)与外壳(1)之间设有地线复位弹性件(77)，所述滑动扣座(72)上设有在其按压前阻挡地线静触点(724)与地线动触点(744)接触的横杆(725)，所述地线静触点(724)与地线动触点(744)在卡勾(722)与卡位(741)扣合前接触，所述电源静触点(723)与电源动触点(742)在卡勾(722)与卡位(741)扣合后接触，所述电源静触点(723)与电源动触点(742)在动衔铁(762)推动横担(74)使卡勾(722)与卡位(741)脱扣后断开，所述地线静触点(724)与地线动触点(744)在卡勾(722)与卡位(741)脱扣且在复位弹簧(73)作用力下断开。
  2. 根据权利要求1所述的一种漏电保护器，其特征在于：所述拨动件(75)为L形。
  3. 根据权利要求1所述的一种漏电保护器，其特征在于：所述横担(74)的右上角设有斜面(745)，所述卡勾(722)的左上角为与所述的斜面(745)配合滑动的斜滑面(728)。
  4. 根据权利要求1所述的一种漏电保护器，其特征在于：所述弹性顶压件(751)为扭簧。
  5. 根据权利要求1所述的一种漏电保护器，其特征在于：所述复位弹性件(743)为簧片。
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CN109119299A (zh) * 2018-09-19 2019-01-01 余姚市嘉荣电子电器有限公司 一种漏电保护器
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