WO2015106709A1 - 拍合式电磁脱扣系统 - Google Patents

拍合式电磁脱扣系统 Download PDF

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Publication number
WO2015106709A1
WO2015106709A1 PCT/CN2015/070829 CN2015070829W WO2015106709A1 WO 2015106709 A1 WO2015106709 A1 WO 2015106709A1 CN 2015070829 W CN2015070829 W CN 2015070829W WO 2015106709 A1 WO2015106709 A1 WO 2015106709A1
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WO
WIPO (PCT)
Prior art keywords
armature
iron core
wire
bracket
snap
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PCT/CN2015/070829
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English (en)
French (fr)
Inventor
江华华
刁增进
郑英川
刘亚南
Original Assignee
浙江正泰电器股份有限公司
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Application filed by 浙江正泰电器股份有限公司 filed Critical 浙江正泰电器股份有限公司
Priority to US15/112,342 priority Critical patent/US9640356B2/en
Priority to EP15737547.8A priority patent/EP3096340B1/en
Priority to ES15737547.8T priority patent/ES2685573T3/es
Publication of WO2015106709A1 publication Critical patent/WO2015106709A1/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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/164—Heating elements
    • 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
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/402—Combined electrothermal and electromagnetic mechanisms in which the thermal mechanism influences the magnetic circuit of the electromagnetic mechanism
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H2071/407—Combined electrothermal and electromagnetic mechanisms the thermal element being heated by the coil of the electromagnetic mechanism

Definitions

  • the utility model belongs to the technical field of plastic shell type circuit breakers, in particular to a snap-on electromagnetic tripping system of a molded case type circuit breaker.
  • the snap-on electromagnetic tripping system of the plastic case circuit breaker mainly uses the short-circuit current flowing through the overheating element to generate an electromagnetic field on the iron core, attracts the armature, pushes the trip bar to disconnect the product, thereby ensuring the safety of the power supply system.
  • It mainly includes iron core, armature, heat element, hot bimetal element, bracket, support member, flexible wire and connecting plate.
  • the thermal element passes through the magnetic circuit formed by the armature and the iron core.
  • the purpose of the utility model is to overcome the defects of the prior art and to provide a snap-on electromagnetic system with simple structure and high reliability.
  • a snap-on electromagnetic tripping system comprising a U-shaped core 107, an armature 101, a heat element 103, a bimetal element 102 and a coupling plate 106, the bracket 104 extending into the U-shaped groove of the core 107 and the iron
  • the core 107 is fixedly connected, and the wire 105 connecting the heat element 103 and the coupling plate 106 surrounds the core 107 and the bracket 104;
  • the bracket 104 surrounded by the wire 105 is fixedly connected to the middle of the heat element 103, and the bottom end of the heat element 103 and the bimetal element 102 Attached to the support member 108, the armature 101 is hung on the bracket 104 surrounded by the wire 105; the armature 101 is disposed opposite to the core 107 surrounded by the wire 105 to form a magnetic circuit, and one end of the armature 101 is generated when a short-circuit current is generated.
  • the iron core 107 is sucked and oscillated.
  • the armature 101 includes a sheet-like suction portion 1011 and a first connection with the suction portion 1011.
  • a hanging post 1013 and a second hanging post 1014 are provided with a bent portion 1012 extending toward the iron core 107 at a joint of the suction portion 1011 and the first hanging post 1013 and the second hanging post 1014;
  • the first hanging post 1013 and the second hanging post 1014 are provided with a pair of protrusions 1015 fitted to the bracket 104, and an abutting top 1016 for triggering a tripping action is provided at the end of the first hanging post 1013, and the abutting top 1016 is away from the iron.
  • the core 107 is bent in the direction.
  • the iron core 107 is a U-shaped structure composed of two side edges 1071 and a bottom surface 1072.
  • the two side edges 1071 are symmetrically arranged in a shape, and both sides are provided with a swing range for increasing the armature 101.
  • the armature 101 is attracted to the oblique side 1073 of the moving direction.
  • the bracket 104 includes an auxiliary portion 1041 fixedly connected to the bottom surface 1072 of the iron core 107 in a U-shaped groove extending into the iron core 107, and the auxiliary portion 1041 fixedly connected to the bottom surface 1072 of the iron core 107.
  • the upper end is provided with a pair of armature support arms 1042 extending in the direction of the armature 101, and the pair of armature support arms 1042 are provided with grooves fitted to the iron core 107.
  • the bottom end of the suction portion 1011 of the armature 101 is recessed at the bottom, and a pair of feet 1017 are disposed on both sides.
  • the iron core 107 is disposed opposite to the suction portion 1011 of the armature 101, and the width W2 of the iron core 107 is the same as the width W1 of the suction portion 1011 of the armature 101.
  • the height H2 of the iron core 107 is the same as the height H1 of the suction portion 1011 of the armature 101.
  • the support member 108 includes a support connecting piece 1082 which is disposed under the central portion of the bottom end of the armature 101, and a support fixing portion 1081 which is fixedly connected to the bottom end of the bimetal.
  • the support fixing portion 1081 and the support member are connected.
  • the piece 1082 is joined in a vertical configuration.
  • a second wire 109 that is not connected to the bracket 104 and the heat element 103 in parallel with the wire 105 is connected between the heat element 103 and the coupling plate 106.
  • the wire 105 that bypasses the core 107 and the bracket 104 is an enameled wire or a soft connecting wire.
  • the snap-on electromagnetic tripping system of the utility model has a simple and reasonable structure, and can reliably hold the armature. Molded case circuit breaker suitable for low current current snap-on electromagnetic structure, especially suitable for 63A and below specifications of the snap-on electromagnetic trip system.
  • FIG. 1 is a structural view of a snap-on electromagnetic system of the present invention
  • Figure 2 is an exploded view of the snap-on electromagnetic system of the present invention
  • FIG. 3 is a structural view of another embodiment of the snap-on electromagnetic system of the present invention.
  • Figure 4 is a structural view of the armature of the present invention.
  • Figure 5 is a structural view of the iron core of the present invention.
  • Figure 6 is a structural view of the bracket of the present invention.
  • the specific embodiment of the snap-on electromagnetic system of the present invention will be further described below with reference to the embodiments given in FIGS. 1 to 6.
  • the snap-on electromagnetic system of the present invention is not limited to the specific description of the following embodiments.
  • the snap-on electromagnetic tripping system of the present invention comprises a U-shaped iron core 107, a bracket 104, an armature 101, a thermal element 103, a bimetal element 102, a wire 105, a support member 108, and Coupling plate 106.
  • the bracket 104 is fixedly connected to the iron core 107 in the U-shaped groove of the iron core 107.
  • a pair of grooves for mounting the armature 101 are disposed on both sides of the upper end of the bracket 104, and the wire 105 connecting the heat element 103 and the connecting plate 106 surrounds the iron.
  • Core 107 and bracket 104 are provided to support the bracket 104.
  • the bracket 104 surrounded by the wire 105 is fixedly connected to the middle of the heat element 103, and the bottom ends of the heat element 103 and the bimetal element 102 are fixedly connected with the support member 108; a pair of brackets 104 are provided at corresponding positions on both sides of the armature 101.
  • the pair of protrusions 1015 are matched by the groove, and the armature 101 is hung on the bracket 104 by a pair of protrusions 1015; the armature 101 is disposed opposite to the core 107 to form a magnetic circuit, and one end of the armature 101 is directed toward the core 107 when short-circuited. Pull and swing.
  • the thermal element 103 and the wire 105 in the circuit loop pass through the middle of the magnetic circuit.
  • the snap-on electromagnetic tripping system of the utility model has the advantages of simple structure, reliable engagement of the armature, and a molded case circuit breaker suitable for a low current snap-on electromagnetic structure, and is particularly suitable for the snap-on electromagnetic tripping of 63A and below. system.
  • FIG. 3 is a structural view of another embodiment of the snap-on electromagnetic system of the present invention, and the embodiment shown in FIG. 3 is different from the embodiment shown in FIG. 1 in that between the thermal element 103 and the coupling plate 106.
  • a second wire 109 that is not connected to the wire 104 and the heat element 103 is connected in parallel with the wire 105.
  • the cross-sectional area of the wire 105 and the second wire 109 is reasonably distributed to ensure that a current flowing through the wire 105 can generate a sufficient magnetic field force.
  • the structure of the armature of the present invention is as shown in FIG. 4, and the armature 101 includes a sheet-like suction portion 1011, a first hanging column 1013 and a second hanging column 1014 connected to the suction portion 1011, and the first portion 1011 and the first hanging column 1011.
  • the connecting portion of the hanging post 1013 and the second hanging post 1014 is provided with a curved portion 1012 extending in the direction of the iron core 107, and the curved portion 1012 can effectively increase the swinging range of the armature.
  • the first hanging post 1013 and the second hanging post 1014 are provided with a pair of protrusions 1015 fitted to a pair of grooves of the bracket 104, and the end of the first hanging post 1013 is provided with a trigger for triggering the tripping action.
  • the top portion 1016, the bending of the abutting top portion 1016 away from the core 107 is advantageous for improving the reliability of triggering the tripping action.
  • the bottom end of the bottom portion of the suction portion 1011 is recessed, and a pair of legs 1017 are disposed on both sides.
  • the support member 108 is disposed at the bottom portion of the bottom end of the suction portion 1011 to help reduce the volume of the electromagnetic trip system, and the bottom end of the suction portion 1011
  • the central depression is advantageous for reducing the weight of the armature, and the pair of feet 1017 on both sides of the bottom end of the suction portion 1011 is also very important, and the pair of feet 1017 and the two sides 1071 of the core 107 are oppositely disposed. Use the suction generated by the magnetic circuit.
  • the structure of the support member 108 located under the recess in the middle of the bottom end of the suction portion 1011 is as shown in FIG. 2.
  • the support member 108 includes a support member connecting piece 1082 which is disposed under the central portion of the bottom end of the armature 101 and is fixed to the bottom end of the bimetal.
  • the connected support fixing portion 1081 has a vertical structure in which the support fixing portion 1081 and the support connecting piece 1082 are joined.
  • the structure of the iron core of the present invention is as shown in FIG. 5.
  • the iron core 107 is a U-shaped structure composed of two side edges 1071 and a bottom surface 1072.
  • the two side edges 1071 are symmetrically arranged in shape, and the two sides are symmetrically arranged.
  • the side is provided with a beveled edge 1073 which can increase the swinging range of the armature 101 and the direction of movement of the armature 101 when it is sucked.
  • the iron core 107 is disposed opposite to the suction portion 1011 of the armature 101, and the suction force generated by the magnetic circuit can be reasonably utilized to ensure the reliability of triggering the tripping action.
  • the two side edges 1071 of the iron core 107 and the suction portion 1011 are The pair of legs 1017 are opposed to each other, and the width W2 of the core 107 is the same as the width W1 of the suction portion 1011. Further, the height H2 of the iron core 107 may be the same as the height H1 of the suction portion 1011, and the height is the same as only a further preferred embodiment.
  • the structure of the bracket of the utility model is shown in FIG. 6 , and the bracket 104 includes a sheet-like extending core 107 .
  • the auxiliary portion 1041 fixedly connected to the bottom surface 1072 of the iron core 107 in the U-shaped groove, the auxiliary portion 1041 can effectively increase the thickness of the iron core; and the upper end of the auxiliary portion 1041 fixedly connected to the bottom surface 1072 of the iron core 107 is provided with A pair of armature support arms 1042 extending in the direction of the armature 101 can increase the swing range of the armature, and the armature support arm 1042 is provided with a groove that is fitted and fitted with the iron core 107.
  • the current flowing through the magnetic circuit formed by the armature 101 and the iron core 107 suddenly increases when the short circuit occurs, and the balance of the electromagnetic tripping system is broken, and the suction portion 1011 of the armature 101 is directed to the iron core 107.
  • the armature 101 swings around a pair of grooves of the bracket 104, and the movement of the top portion 1016 away from the core 107 triggers the tripping of the circuit breaker to protect the load.
  • the iron core 107, the bracket 104 and the heat element 103 are provided with connecting holes which can be riveted together, and can be riveted together at one time.
  • the bottom ends of the heat element 103 and the bimetal element 102 are fixedly coupled to the support member 108 by soldering.
  • the wire 105 that bypasses the core 107 and the bracket 104 is an enameled wire or a soft connecting wire.
  • the present invention is not limited to the above technical solutions.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • General Induction Heating (AREA)

Abstract

拍合式电磁脱扣系统，包括U型结构的铁芯（107）、衔铁（101）、热元件（103）、双金属元件（102）和联接板（106），支架（104）深入铁芯（107）的U型槽中与铁芯（107）固定连接，连接热元件（103）和联接板（106）的导线（105）环绕铁芯（107）和支架（104）；被导线（105）环绕的支架（104）与热元件（103）中部固定连接，热元件（103）和双金属元件（102）的底端与支持件（108）固定连接在一起，衔铁（101）挂在被导线（105）环绕的支架（104）上；衔铁（101）与被导线（105）环绕的铁芯（107）相对设置构成磁回路，当短路电流产生时，衔铁（101）一端被铁芯（107）吸合而发生摆动。该拍合式电磁脱扣系统结构简单合理，能够使衔铁可靠吸合。

Description

拍合式电磁脱扣系统 技术领域
本实用新型属于塑料外壳式断路器技术领域，特别是涉及一种塑壳式断路器的拍合式电磁脱扣系统。
背景技术
目前，塑料外壳式断路器的拍合式电磁脱扣系统，主要是利用流过热元件的短路电流在铁芯上产生电磁场，吸合衔铁，推动脱扣杆使产品断开，从而确保供电系统的安全性；其主要包括铁芯，衔铁、热元件、热双金属元件、支架、支持件、软导线、联接板。热元件从衔铁和铁芯构成的磁回路中穿过，当短路电路流过热元件时，会在环绕热元件的铁芯上产生磁场；如果产生的磁场力不足以使衔铁吸合，导致短路保护失效，特别是63A及以下规格拍合式电磁脱扣系统。
实用新型内容
本实用新型的目的在于克服现有技术的缺陷，提供一种结构简单可靠性高的拍合式电磁系统。
为实现上述目的，本实用新型采用了如下技术方案：
一种拍合式电磁脱扣系统，包括U型结构的铁芯107、衔铁101、热元件103、双金属元件102和联接板106，所述支架104伸入铁芯107的U型槽中与铁芯107固定连接，连接热元件103和联接板106的导线105环绕铁芯107和支架104；被导线105环绕的支架104与热元件103中部固定连接，热元件103和双金属元件102的底端与支持件108固定连接在一起，衔铁101挂在被导线105环绕的支架104上；所述衔铁101与被导线105环绕的铁芯107相对设置构成磁回路，当短路电流产生时衔铁101一端被铁芯107吸合而发生摆动。
进一步，所述衔铁101包括片状的吸合部1011、与吸合部1011连接的第 一挂柱1013和第二挂柱1014，在吸合部1011与第一挂柱1013和第二挂柱1014的连接处设有向铁芯107方向延伸的弯曲部1012；所述第一挂柱1013和第二挂柱1014上设有与支架104安装配合的一对凸起1015，在第一挂柱1013端部设有用于触发脱扣动作的抵顶部1016，所述抵顶部1016向远离铁芯107方向弯曲。
进一步，所述铁芯107为由两个侧边1071和底面1072构成的U型结构，所述的两个侧边1071形状一致对称设置，两个侧边上均设有可增加衔铁101摆动范围的延衔铁101被吸合时运动方向的斜边1073。
进一步，所述支架104包括片状的伸入铁芯107的U型槽中与铁芯107的底面1072固定连接的辅助部1041，所述与铁芯107的底面1072固定连接的辅助部1041的上端设有向衔铁101方向延伸的一对衔铁支撑臂1042，所述一对衔铁支撑臂1042上设有与铁芯107安装配合的凹槽。
进一步，所述衔铁101的吸合部1011底端中部凹陷，两侧设有一对底脚1017。
进一步，所述铁芯107与衔铁101的吸合部1011相对设置，铁芯107的宽度W2和衔铁101的吸合部1011的宽度W1相同。
进一步，所述铁芯107的高度H2和衔铁101的吸合部1011的高度H1相同。
进一步，所述支持件108包括设置在衔铁101底端中部凹陷下的支持件连接片1082和与双金属片底端固定连接的支持件固定部1081，所述支持件固定部1081和支持件连接片1082连接处成垂直结构。
进一步，所述热元件103和联接板106之间还连接有与导线105并联的不环绕支架104与热元件103的第二导线109。
进一步，所述绕过铁芯107和支架104的导线105为漆包线或软连接导线。
本实用新型的拍合式电磁脱扣系统结构简单合理，能够使衔铁可靠吸合。适合用于小电流的拍合式电磁结构的塑壳式断路器，特别是适合用于63A及以下规格拍合式电磁脱扣系统。
附图说明
图1是本实用新型的拍合式电磁系统的结构图；
图2是本实用新型的拍合式电磁系统的分解视图；
图3是本实用新型的拍合式电磁系统另一实施例的结构图；
图4是本实用新型的衔铁的结构图；
图5是本实用新型的铁芯的结构图；
图6是本实用新型的支架的结构图。
具体实施方式
以下结合附图1至6给出的实施例，进一步说明本实用新型的拍合式电磁系统的具体实施方式。本实用新型的拍合式电磁系统不限于以下实施例的具体描述。
如图1、2所示，本实用新型的拍合式电磁脱扣系统，包括U型结构的铁芯107、支架104、衔铁101、热元件103、双金属元件102、导线105、支持件108和联接板106。所述支架104伸入铁芯107的U型槽中与铁芯107固定连接，支架104上端两侧设有安装衔铁101的一对凹槽，连接热元件103和联接板106的导线105环绕铁芯107和支架104。被导线105环绕的支架104与热元件103中部固定连接，热元件103和双金属元件102的底端与支持件108固定连接在一起；衔铁101两侧对应位置上设有与支架104上一对凹槽配合的一对凸起1015，衔铁101通过一对凸起1015挂在支架104上；所述衔铁101与铁芯107相对设置构成磁回路，在短路时衔铁101一端被向铁芯107方向吸合摆动。电路回路中的热元件103和导线105均从磁回路中间穿过，当短路电流先后从热元件103及导线105中流过时，磁回路中会产生磁场力，由于磁场力和穿过磁回路电流的平方为正比关系，能够使衔铁可靠吸合。本实用新型的拍合式电磁脱扣系统结构简单，能够使衔铁可靠吸合，适合用于小电流的拍合式电磁结构的塑壳式断路器，特别是适合用于63A及以下拍合式电磁脱扣系统。
图3是本实用新型拍合式电磁系统另一实施例的结构图，图3所示实施例与图1所示实施例的不同之处在于，在所述热元件103和联接板106之间还连接有与导线105并联的不环绕支架104与热元件103的第二导线109，导线105与第二导线109的截面积合理分配，保证流过导线105的电流能产生足够的磁场力。
本实用新型衔铁的结构如图4所示，衔铁101包括片状的吸合部1011、与吸合部1011连接的第一挂柱1013和第二挂柱1014，在吸合部1011与第一挂柱1013和第二挂柱1014的连接处设有向铁芯107方向延伸的弯曲部1012，弯曲部1012可有效增加衔铁的摆动范围。所述第一挂柱1013和第二挂柱1014上设有与支架104的一对凹槽安装配合的一对凸起1015，在第一挂柱1013端部设有用于触发脱扣动作的抵顶部1016，所述抵顶部1016向远离铁芯107方向弯曲有利于提高触发脱扣动作的可靠性。吸合部1011底端中部凹陷，两侧设有一对底脚1017，支持件108设于吸合部1011底端中部凹陷下有助于缩小电磁脱扣系统的体积，且吸合部1011底端中部的凹陷有利于减小衔铁的重量，而吸合部1011底端两侧的一对底脚1017也非常重要，一对底脚1017与铁芯107的两个侧边1071相对设置能够充分的利用磁回路产生的吸力。位于吸合部1011底端中部的凹陷下的支持件108的结构如图2所示，支持件108包括设置在衔铁101底端中部凹陷下的支持件连接片1082和与双金属片底端固定连接的支持件固定部1081，所述支持件固定部1081和支持件连接片1082连接处成垂直结构。
本实用新型铁芯的结构如图5所示，所述铁芯107为由两个侧边1071和底面1072构成的U型结构，所述的两个侧边1071形状一致对称设置，两个侧边上均设有可增加衔铁101摆动范围的延衔铁101被吸合时运动方向的斜边1073。所述铁芯107与衔铁101的吸合部1011相对设置，能够合理的利用磁回路产生的吸力以保证触发脱扣动作的可靠性，铁芯107的两个侧边1071与吸合部1011的一对底脚1017相对设置，铁芯107的宽度W2和吸合部1011的宽度W1相同。进一步，铁芯107的高度H2还可以和吸合部1011的高度H1相同，高度相同仅为进一步优选方案。
本实用新型支架的结构如图6所示，所述支架104包括片状的伸入铁芯107 的U型槽中与铁芯107的底面1072固定连接的辅助部1041，辅助部1041可有效增加铁芯的厚度；所述与铁芯107的底面1072固定连接的辅助部1041的上端设有向衔铁101方向延伸的一对衔铁支撑臂1042可增加衔铁的摆动范围，所述衔铁支撑臂1042上设有与铁芯107安装配合的凹槽。
本实用新型的电磁脱扣系统，当短路时穿过衔铁101与铁芯107构成的磁回路的电流突然增加，破坏了电磁脱扣系统的平衡，衔铁101的吸合部1011被向铁芯107的方向吸合，衔铁101绕支架104的一对凹槽摆动，抵顶部1016向远离铁芯107方向运动触发断路器脱扣实现对负载的保护。实施例中铁芯107、支架104和热元件103上均设有可铆接在一起的连接孔，可一次铆接在一起。热元件103和双金属元件102的底端与支持件108通过焊接固定连接。所述绕过铁芯107和支架104的导线105为漆包线或软连接导线。当然本实用新型并不限于上述技术方案。
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。

Claims (10)

  1. 一种拍合式电磁脱扣系统，包括U型结构的铁芯(107)、衔铁(101)、热元件(103)、双金属元件(102)和联接板(106)，其特征在于：所述支架(104)伸入铁芯(107)的U型槽中与铁芯(107)固定连接，连接热元件(103)和联接板(106)的导线(105)环绕铁芯(107)和支架(104)；被导线(105)环绕的支架(104)与热元件(103)中部固定连接，热元件(103)和双金属元件(102)的底端与支持件(108)固定连接在一起，衔铁(101)挂在被导线(105)环绕的支架(104)上；所述衔铁(101)与被导线(105)环绕的铁芯(107)相对设置构成磁回路，当短路电流产生时衔铁(101)一端被铁芯(107)吸合而发生摆动。
  2. 根据权利要求1所述的拍合式电磁脱扣系统，其特征在于：所述衔铁(101)包括片状的吸合部(1011)、与吸合部(1011)连接的第一挂柱(1013)和第二挂柱(1014)，在吸合部(1011)与第一挂柱(1013)和第二挂柱(1014)的连接处设有向铁芯(107)方向延伸的弯曲部(1012)；所述第一挂柱(1013)和第二挂柱(1014)上设有与支架(104)安装配合的一对凸起(1015)，在第一挂柱(1013)端部设有用于触发脱扣动作的抵顶部(1016)，所述抵顶部(1016)向远离铁芯(107)方向弯曲。
  3. 根据权利要求1所述的拍合式电磁脱扣系统，其特征在于：所述铁芯(107)为由两个侧边(1071)和底面(1072)构成的U型结构，所述的两个侧边(1071)形状一致对称设置，两个侧边上均设有可增加衔铁(101)摆动范围的延衔铁(101)被吸合时运动方向的斜边(1073)。
  4. 根据权利要求1所述的拍合式电磁脱扣系统，其特征在于：所述支架(104)包括片状的伸入铁芯(107)的U型槽中与铁芯(107)的底面(1072固定连接的辅助部(1041)，所述与铁芯(107)的底面(1072)固定连接的辅助部(1041)的上端设有向衔铁(101)方向延伸的一对衔铁支撑臂(1042)，所述一对衔铁支撑臂(1042)上设有与铁芯(107)安装配合的凹槽。
  5. 根据权利要求2所述的拍合式电磁脱扣系统，其特征在于：所述衔铁 (101)的吸合部(1011)底端中部凹陷，两侧设有一对底脚(1017)。
  6. 根据权利要求2所述的拍合式电磁脱扣系统，其特征在于：所述铁芯(107)与衔铁(101)的吸合部(1011)相对设置，铁芯(107)的宽度W2和衔铁(101)的吸合部(1011)的宽度W1相同。
  7. 根据权利要求6所述的拍合式电磁脱扣系统，其特征在于：所述铁芯(107)的高度H2和衔铁(101)的吸合部(1011)的高度H1相同。
  8. 根据权利要求5所述的拍合式电磁脱扣系统，其特征在于：所述支持件(108)包括设置在衔铁(101)底端中部凹陷下的支持件连接片(1082)和与双金属片底端固定连接的支持件固定部(1081)，所述支持件固定部(1081)和支持件连接片(1082)连接处成垂直结构。
  9. 根据权利要求1所述的拍合式电磁脱扣系统，其特征在于：所述热元件(103)和联接板(106)之间还连接有与导线(105)并联的不环绕支架(104)与热元件(103)的第二导线(109)。
  10. 根据权利要求1所述的拍合式电磁脱扣系统，其特征在于：所述绕过铁芯(107)和支架(104)的导线(105)为漆包线或软连接导线。
PCT/CN2015/070829 2014-01-17 2015-01-16 拍合式电磁脱扣系统 WO2015106709A1 (zh)

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CN107154325B (zh) * 2016-03-02 2020-06-30 浙江正泰电器股份有限公司 断路器的过载报警不脱扣装置
EP3373319B1 (en) * 2017-03-09 2021-11-10 LSIS Co., Ltd. Circuit breaker with instant trip mechanism
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CN109449064B (zh) * 2018-12-15 2024-05-14 浙江正泰电器股份有限公司 电磁脱扣装置及断路器
CN111769013B (zh) * 2020-06-06 2022-04-19 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） 一种塑壳用大范围可调短路电磁脱扣器

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