WO2012171233A1 - Moving contact component and electromagnetic isolation driving intelligent switch using moving contact component - Google Patents
Moving contact component and electromagnetic isolation driving intelligent switch using moving contact component Download PDFInfo
- Publication number
- WO2012171233A1 WO2012171233A1 PCT/CN2011/076344 CN2011076344W WO2012171233A1 WO 2012171233 A1 WO2012171233 A1 WO 2012171233A1 CN 2011076344 W CN2011076344 W CN 2011076344W WO 2012171233 A1 WO2012171233 A1 WO 2012171233A1
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- WIPO (PCT)
- Prior art keywords
- movable contact
- insulating cavity
- insulating
- fixed
- hole
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Definitions
- the present invention relates to a power equipment technology, and in particular to a movable contact assembly and an electromagnetic isolation drive intelligent switch using the same. Background technique
- the function of the switch is to cut and close the circuit and to cut off the faulty circuit.
- the vacuum switch is named for its high arc due to its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing. It has the advantages of small size, light weight, suitable for frequent operation, no need for overhaul of the arc extinguishing chamber, etc. The application is more popular.
- the vacuum circuit breaker mainly consists of three parts: a vacuum interrupter (vacuum bubble), an electromagnetic or spring operating mechanism, a bracket and its transmission system.
- the vacuum switch has many mechanical parameters, such as closing speed, opening speed, contact stroke, contact closing bounce time, and contact opening rebound amplitude.
- the existing vacuum switches are mainly used below 35KV. Due to the lengthening of the circuit breakers of 110KV and above, there are more than 4 problems, and the mechanical reliability and mechanical life are not enough. Summary of the invention
- the technical problem solved by the present invention is to provide a moving contact assembly which improves transmission efficiency and reliability.
- a movable contact assembly for realizing opening or closing of a switch or a movable contact of a circuit breaker, comprising a moving iron core, two permanent magnets and a split brake line; the moving iron core is located at the two Between the permanent magnets, the movable iron core is fixed on the movable contact, a first through hole is formed in a middle portion of the permanent magnetic steel, and the movable contact is set in the first through hole.
- the opening and closing wire is disposed on the outer wall of the insulating cavity.
- an inner wall of the insulating cavity is provided with an insulating support, and the permanent magnet is fixed on the insulating support.
- the movable iron core and the permanent magnetic steel are disposed in a mechanism chamber separated from the insulating cavity, and the inside of the mechanism is vacuumed.
- Another technical problem solved by the present invention is to provide an electromagnetic isolation driving intelligent switch using a moving contact assembly, which improves transmission efficiency and reliability.
- An electromagnetic isolation driving intelligent switch using a movable contact assembly comprising an insulating cavity, a movable contact, an insulating support and an electrode connecting rod, wherein the movable contact is disposed inside the insulating cavity, the insulating support
- the outer wall is fixed on an inner wall of the insulating cavity
- the electrode link is fixed at an end of the insulating cavity
- further comprises a movable contact assembly wherein the movable contact assembly comprises a switching gate and a moving a core and two permanent magnets, the moving iron core and two permanent magnets are disposed inside the insulating cavity, the permanent magnet is fixed on the insulating support;
- the permanent magnet is opened a first through hole, the movable contact is sleeved on the first through hole, one end of the movable contact is electrically connected to the electrode link;
- the movable iron core is disposed in two pieces Between the permanent magnets, the moving iron core is fixed on the movable contact; the separating and closing wire is disposed on
- the insulating cavity is provided with two sets of moving contact assemblies.
- an outer edge of the permanent magnet is fixed on the insulating support.
- the insulating cavity is internally provided with a plum connector and a copper support, the electrode link is provided with an annular protrusion, the plum connector is fixed on the annular protrusion, and the plum connector is opened.
- the movable contact is sleeved on the third through hole, the movable contact and the tortoise connector are electrically connected;
- the copper support is located at the Between the plum blossom connector and the permanent magnet, the outer edge of the copper support is fixed on the insulating support, the copper support has a second through hole, and the movable contact is disposed in the On the second through hole, the other end of the movable contact extends to the outside of the copper support.
- the outer wall of the insulating cavity is provided with solid insulation, and the solid insulation has a groove at a position corresponding to the permanent magnet, and the opening and closing line is fixed in the groove.
- the internal vacuum of the insulating cavity, the outer side of the permanent magnet is provided with a bellows, the bellows is provided with a fourth through hole, and the movable contact is set on the fourth through hole;
- the bellows divides the inner space of the insulating cavity into an arc extinguishing chamber and a mechanism chamber, and the moving iron core and the permanent magnet are disposed in the mechanism chamber.
- the arc extinguishing chamber is provided with a shielding cover, and the shielding cover is fixed on the inner wall of the insulating cavity, and the length of the shielding cover is adapted to the stroke of the two moving contacts.
- the opening or closing of the switch contacts is driven by the mechanical transmission system; in the present invention, the operating mechanism is directly connected to the vacuum interrupter, and the package is In the body of an integral insulating cavity, the driving wire is immersed in the insulating cavity, electrically isolated from the moving parts, omitting the mechanical transmission system, improving the transmission efficiency, reducing the number of parts, and not only the structure of the whole machine, but also the reliability. Improve, the use of metal materials is reduced.
- the present invention omits the transmission system, and the motion quality is greatly reduced. Therefore, the present invention enables the operating mechanism to open/close quickly.
- the opening and closing line ⁇ is disposed outside the insulating cavity, which effectively solves the insulation problem, and can effectively solve the problem of large operation equipment.
- Fig. 1 is a schematic view showing the structure of an electromagnetic isolation driving intelligent switch according to the present invention
- Fig. 2 is a view showing the state of the movable contact in the closing state of the present invention.
- the movable contact assembly of the present invention can be widely applied to various circuit breakers and switches having moving contacts, which can effectively reduce the volume of the device.
- the structure of the moving contact assembly comprises: a moving iron core, a permanent magnetic steel, a splitting and closing wire ⁇ ; wherein, the moving iron core is fixed to the moving contact, and is used for driving the moving contact to open or close; a through hole is arranged, the movable contact is set in the through hole, the permanent magnet is fixed on the inner wall of the insulating cavity, or is fixed on the insulating support of the inner wall of the insulating cavity; the closing and closing wire is disposed in the insulating cavity
- the outside of the body is used to provide an electromagnetic field to the moving iron core.
- FIG. 1 it is a structural diagram of an electromagnetic isolation driving intelligent switch in the present invention.
- the structure of the electromagnetic isolation driving intelligent switch comprises: an electrode connecting rod 1, a moving contact 2, a plum blossom connecting head 3, a moving iron core 4, a permanent magnetic steel 5, a shield cover 6, an insulating cavity 7, an insulating support member 8, a copper support Piece 9, the closing and closing line ⁇ 10, the solid insulation 1 1 and the bellows 12.
- the electromagnetic isolation driving intelligent switch is provided with two movable contacts 2, the left and right units of the electromagnetic isolation driving intelligent switch are symmetrical, the electrode connecting rod 1, the moving contact 2, the plum blossom connecting head 3, the moving iron core 4, The permanent magnet 5, the shield 6, the insulating support 8, the copper support 9, the opening and closing line 10, the solid insulation 1 and the bellows 12 are respectively disposed
- the left and right cells of the edge cavity 7 each contain a group.
- the bellows 12 isolates the internal space of the insulating cavity 7 into the arc extinguishing chamber 14 and the mechanism chamber 13.
- the arc extinguishing chamber 14 is located at an intermediate portion of the insulating cavity 7, the mechanism chamber 13 is located at both sides of the arc extinguishing chamber 14, and the movable iron core 4 and the permanent magnet 5 are disposed in the mechanism chamber 13.
- the inside of the insulating cavity 7 is evacuated, and two electrode connecting rods 1 are respectively fixed at two ends of the insulating cavity 7, and the electrode connecting rod 1 is provided with an annular protrusion, and a concave hole is formed in the middle of the annular convex, and the insulating
- the support member 8 is disposed on the inner wall of the insulating cavity 7;
- the movable contact 2 is disposed inside the insulating cavity 7, and when the movable contact 2 is in the open state, one end of the movable contact 2 and the electrode connecting rod 1 In contact with the top, to the recess in the middle of the electrode connecting rod 1;
- the plum blossom connector 3 is fixed on the annular protrusion of the electrode connecting rod 1, the plum blossom connector 3 has a through hole at one end, and the movable contact 2 is set in the through hole On the hole, whether in the open state or in the closed state, the movable contact 2 is always electrically connected with the plum blossom connector 3, and is in a conducting state
- the copper support member 9 has a through hole in the middle, the movable contact 2 is fitted on the through hole, and the other end of the movable contact 2 is located in the arc extinguishing chamber. 14; two 7 j long magnets 5 are arranged in the mechanism chamber 13, and the outer edge of the 7 j long magnet 5 is fixed at On the insulating support member 8, a through hole is formed in the middle of the permanent magnet 5, and the movable contact 2 is fitted on the through hole; the movable iron core 4 is disposed between the two permanent magnets 5, and the movable iron core 4 is fixed On the outer wall of the contact 2; the solid insulation 11 is disposed on the outer wall of the insulating cavity 7, and the solid insulation 11 is grooved at a position corresponding to the permanent magnet 5, and the opening and closing line 10 is disposed in the groove
- the shielding cover 6 is disposed in the arc extinguishing chamber 14 , and the shielding cover 6 is fixed on the inner wall of the insulating cavity 7 , the length of the
- FIG. 2 it is a state diagram of the movable contact in the closed state of the present invention.
- the N pole and the S pole of the two permanent magnets 5 are opposed, and when in the open state, the movable iron core 4 is attracted to the permanent magnet 5 near the side of the electrode link 1.
- the opening and closing line ⁇ 10 is energized to form a magnetic field, and the magnetic field gives the moving core 4 a force in the opposite direction.
- the moving iron core 4 is attracted to the remote connecting rod 1
- the side of the permanent magnet 5 is on.
- the electromagnetic isolation driving intelligent switch can be designed as a moving contact 2 and a static contact, and only one moving contact component needs to be retained, or can be set as two-contact dual driving, or It is configured to be fixed at one end and driven at one end.
- the inside of the insulating chamber 7 can be evacuated and filled with a low-pressure SF6 gas, a high-purity N2 or SF6 mixed gas as an insulating medium.
- the operating mechanism is directly connected to the vacuum interrupter, and is enclosed by an integral insulating cavity.
- the driving wire is electrically insulated from the moving parts, omitting the mechanical transmission system, improving the transmission efficiency and reducing With the number of parts, the whole machine is not only structurally simple, but also has greatly improved reliability and reduced use of metal materials.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
A moving contact component and an electromagnetic isolation driving intelligent switch using the moving contact component. The moving contact component is used to realize the opening or closing of the moving contact of a switch or a circuit breaker. The moving contact component comprises a moving iron core (4), two permanent magnet steels (5) and an opening or closing coil (10). The moving iron core is arranged between the two permanent magnet steels. The moving iron core is fixed on a moving contact (2). The middle part of each permanent magnet steel is provided with a through-hole. The moving contact is sleeved in the through-holes. The opening or closing coil is installed on an outer wall of an insulating cavity (7).
Description
动触头组件及其应用动触头组件的电磁隔离驱动智能开关 技术领域 Moving contact assembly and electromagnetic isolation driving intelligent switch thereof using the same
本发明涉及一种电力装备技术， 具体说， 涉及一种动触头组件 及其应用动触头组件的电磁隔离驱动智能开关。 背景技术 The present invention relates to a power equipment technology, and in particular to a movable contact assembly and an electromagnetic isolation drive intelligent switch using the same. Background technique
开关的作用是切断和接通电路， 以及切断故障电路。 真空开关 因其灭弧介质和灭弧后触头间隙的绝缘介质都是高真空而得名， 其 具有体积小、 重量轻、 适用于频繁操作、 灭弧室不用检修等优点， 在配电网中应用较为普及。 真空断路器主要包含三大部分： 真空灭 弧室 （真空泡） 、 电磁或弹簧操动机构、 支架及其传动系统。 The function of the switch is to cut and close the circuit and to cut off the faulty circuit. The vacuum switch is named for its high arc due to its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing. It has the advantages of small size, light weight, suitable for frequent operation, no need for overhaul of the arc extinguishing chamber, etc. The application is more popular. The vacuum circuit breaker mainly consists of three parts: a vacuum interrupter (vacuum bubble), an electromagnetic or spring operating mechanism, a bracket and its transmission system.
真空开关有许多的机械参数， 如合闸速度、 分闸速度、 触头行 程、 触头合闸弹跳时间、 触头分闸反弹幅值等。 现有真空开关主要 应用在 35KV以下， 110KV及以上断路器由于行程加长， 出现 4艮多 问题， 机械可靠性和机械寿命还不够十分理想。 发明内容 The vacuum switch has many mechanical parameters, such as closing speed, opening speed, contact stroke, contact closing bounce time, and contact opening rebound amplitude. The existing vacuum switches are mainly used below 35KV. Due to the lengthening of the circuit breakers of 110KV and above, there are more than 4 problems, and the mechanical reliability and mechanical life are not enough. Summary of the invention
本发明所解决的技术问题是提供一种动触头组件， 提高了传动 效率和可靠性。 The technical problem solved by the present invention is to provide a moving contact assembly which improves transmission efficiency and reliability.
技术方案如下： The technical solutions are as follows:
一种动触头组件， 用于实现开关或者断路器动触头的分闸或者 合闸， 包括动铁芯、 两个永久磁钢和分合闸线圏； 所述动铁芯位于 所述两个永久磁钢之间， 所述动铁芯固定在所述动触头上， 所述永 久磁钢中部开有第一通孔， 所述动触头套装在所述第一通孔内， 所
述分合闸线圏设置在绝缘腔体的外壁上。 A movable contact assembly for realizing opening or closing of a switch or a movable contact of a circuit breaker, comprising a moving iron core, two permanent magnets and a split brake line; the moving iron core is located at the two Between the permanent magnets, the movable iron core is fixed on the movable contact, a first through hole is formed in a middle portion of the permanent magnetic steel, and the movable contact is set in the first through hole. The opening and closing wire is disposed on the outer wall of the insulating cavity.
进一步： 所述绝缘腔体的内壁设置有绝缘支撑件， 所述永久磁 钢固定在所述绝缘支撑件上。 Further, an inner wall of the insulating cavity is provided with an insulating support, and the permanent magnet is fixed on the insulating support.
进一步： 所述动铁芯和永久磁钢设置在所述绝缘腔体隔离出的 机构室内， 所述机构室内部真空。 Further, the movable iron core and the permanent magnetic steel are disposed in a mechanism chamber separated from the insulating cavity, and the inside of the mechanism is vacuumed.
本发明所解决的另一个技术问题是提供一种应用动触头组件 的电磁隔离驱动智能开关， 提高了传动效率和可靠性。 Another technical problem solved by the present invention is to provide an electromagnetic isolation driving intelligent switch using a moving contact assembly, which improves transmission efficiency and reliability.
技术方案如下： The technical solutions are as follows:
一种应用动触头组件的电磁隔离驱动智能开关， 包括绝缘腔 体、 动触头、 绝缘支撑件和电极连杆， 所述动触头设置在所述绝缘 腔体内部， 所述绝缘支撑件的外壁固定在所述绝缘腔体的内壁上， 所述电极连杆固定在所述绝缘腔体的端部， 还包括动触头组件， 所 述动触头组件包括分合闸线圏、 动铁芯和两个永久磁钢， 所述动铁 芯和两个永久磁钢设置在所述绝缘腔体的内部， 所述永久磁钢固定 在所述绝缘支撑件上； 所述永久磁钢开有第一通孔， 所述动触头套 装在所述第一通孔上， 所述动触头的一个端部和所述电极连杆电连 接； 所述动铁芯设置在两块所述永久磁钢之间， 所述动铁芯固定在 所述动触头的上； 所述分合闸线圏设置在绝缘腔体的外壁上。 An electromagnetic isolation driving intelligent switch using a movable contact assembly, comprising an insulating cavity, a movable contact, an insulating support and an electrode connecting rod, wherein the movable contact is disposed inside the insulating cavity, the insulating support The outer wall is fixed on an inner wall of the insulating cavity, the electrode link is fixed at an end of the insulating cavity, and further comprises a movable contact assembly, wherein the movable contact assembly comprises a switching gate and a moving a core and two permanent magnets, the moving iron core and two permanent magnets are disposed inside the insulating cavity, the permanent magnet is fixed on the insulating support; the permanent magnet is opened a first through hole, the movable contact is sleeved on the first through hole, one end of the movable contact is electrically connected to the electrode link; the movable iron core is disposed in two pieces Between the permanent magnets, the moving iron core is fixed on the movable contact; the separating and closing wire is disposed on the outer wall of the insulating cavity.
进一步： 所述绝缘腔体上设置有两组动触头组件。 Further: the insulating cavity is provided with two sets of moving contact assemblies.
进一步： 所述永久磁钢的外侧边沿固定在所述绝缘支撑件上。 进一步： 所述绝缘腔体内部设置有梅花连接头和铜支撑件， 所 述电极连杆设置有环状凸起， 所述梅花连接头固定所述环状凸起 上， 所述梅花连接头开有第三通孔， 所述动触头套装在所述第三通 孔上， 所述动触头和所述梅花连接头电连接； 所述铜支撑件位于所
述梅花连接头和所述永久磁钢之间， 所述铜支撑件的外侧边沿固定 在所述绝缘支撑件上， 所述铜支撑件开有第二通孔， 所述动触头套 装在所述第二通孔上， 所述动触头的另一个端部延伸到所述铜支撑 件的外部。 Further: an outer edge of the permanent magnet is fixed on the insulating support. Further, the insulating cavity is internally provided with a plum connector and a copper support, the electrode link is provided with an annular protrusion, the plum connector is fixed on the annular protrusion, and the plum connector is opened. a third through hole, the movable contact is sleeved on the third through hole, the movable contact and the tortoise connector are electrically connected; the copper support is located at the Between the plum blossom connector and the permanent magnet, the outer edge of the copper support is fixed on the insulating support, the copper support has a second through hole, and the movable contact is disposed in the On the second through hole, the other end of the movable contact extends to the outside of the copper support.
进一步： 所述绝缘腔体的外壁上设置有固体绝缘， 所述固体绝 缘在对应于所述永久磁钢的位置开有凹槽， 所述分合闸线圏固定在 所述 槽内。 Further, the outer wall of the insulating cavity is provided with solid insulation, and the solid insulation has a groove at a position corresponding to the permanent magnet, and the opening and closing line is fixed in the groove.
进一步： 所述绝缘腔体的内部真空， 所述永久磁钢的外侧设置 有波紋管， 所述波紋管设置有第四通孔， 所述动触头套装在所述第 四通孔上； 所述波纹管将所述绝缘腔体的内部空间分隔为灭弧室和 机构室， 所述动铁芯和永久磁钢设置在所述机构室内。 Further, the internal vacuum of the insulating cavity, the outer side of the permanent magnet is provided with a bellows, the bellows is provided with a fourth through hole, and the movable contact is set on the fourth through hole; The bellows divides the inner space of the insulating cavity into an arc extinguishing chamber and a mechanism chamber, and the moving iron core and the permanent magnet are disposed in the mechanism chamber.
进一步： 所述灭弧室设置有屏蔽罩， 所述屏蔽罩固定在所述绝 缘腔体的内壁上， 所述屏蔽罩的长度和两个动触头的行程相适应。 Further, the arc extinguishing chamber is provided with a shielding cover, and the shielding cover is fixed on the inner wall of the insulating cavity, and the length of the shielding cover is adapted to the stroke of the two moving contacts.
技术效果包括： Technical effects include:
1、 现有技术中， 由于操动机构在真空灭弧室外部， 是通过机 械传动系统驱动开关触头的开闸或者合闸； 本发明中， 操动机构与 真空灭弧室直接连接， 封装在一个整体的绝缘腔体外， 驱动线圏在 绝缘腔体内， 与运动部件电气隔离， 省略了机械传动系统， 提高了 传动效率， 减少了零部件数， 整机不仅结构筒单， 而且可靠性大大 提高， 金属材料使用量减少。 1. In the prior art, since the operating mechanism is outside the vacuum interrupter, the opening or closing of the switch contacts is driven by the mechanical transmission system; in the present invention, the operating mechanism is directly connected to the vacuum interrupter, and the package is In the body of an integral insulating cavity, the driving wire is immersed in the insulating cavity, electrically isolated from the moving parts, omitting the mechanical transmission system, improving the transmission efficiency, reducing the number of parts, and not only the structure of the whole machine, but also the reliability. Improve, the use of metal materials is reduced.
2、 相对于机械驱动， 本发明省略了传动系统， 运动质量大大 降低， 因此本发明使操作机构开闸 /合闸速度快。 2. Compared with the mechanical drive, the present invention omits the transmission system, and the motion quality is greatly reduced. Therefore, the present invention enables the operating mechanism to open/close quickly.
3、 本发明中， 分合闸线圏设置在绝缘腔体外部， 有效解决了 绝缘问题， 同时可以有效解决动作设备体积大的问题。
附图概述 3. In the invention, the opening and closing line 圏 is disposed outside the insulating cavity, which effectively solves the insulation problem, and can effectively solve the problem of large operation equipment. BRIEF abstract
图 1是本发明中电磁隔离驱动智能开关的结构示意图； 图 2是本发明中动触头在合闸状态时的状态图。 本发明的较佳实施方式 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an electromagnetic isolation driving intelligent switch according to the present invention; and Fig. 2 is a view showing the state of the movable contact in the closing state of the present invention. Preferred embodiment of the invention
为使本发明的上述目的、 特征和优点能够更加明显易懂， 下面 结合附图和具体实施方式对本发明作进一步详细的说明。 The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims.
本发明中的动触头组件可以广泛应用于各种具有动触头的断 路器和开关， 可以有效减小设备体积。 动触头组件的结构包括： 动 铁芯、 永久磁钢、 分合闸线圏； 其中， 动铁芯固定到动触头上， 用 于带动动触头开闸或者合闸； 永久磁钢中间设置有通孔， 动触头套 装在该通孔内， 永久磁钢固定在绝缘腔体的内壁上， 或者固定在绝 缘腔体的内壁的绝缘支撑件上； 分合闸线圏设置在绝缘腔体的外 部， 用于给动铁芯提供电磁场。 The movable contact assembly of the present invention can be widely applied to various circuit breakers and switches having moving contacts, which can effectively reduce the volume of the device. The structure of the moving contact assembly comprises: a moving iron core, a permanent magnetic steel, a splitting and closing wire 圏; wherein, the moving iron core is fixed to the moving contact, and is used for driving the moving contact to open or close; a through hole is arranged, the movable contact is set in the through hole, the permanent magnet is fixed on the inner wall of the insulating cavity, or is fixed on the insulating support of the inner wall of the insulating cavity; the closing and closing wire is disposed in the insulating cavity The outside of the body is used to provide an electromagnetic field to the moving iron core.
下面参考优选实施例电磁隔离驱动智能开关， 对本发明技术方 案的应用做详细描述。 The application of the technical solution of the present invention will be described in detail below with reference to the preferred embodiment electromagnetic isolation drive smart switch.
如图 1所示， 是本发明中电磁隔离驱动智能开关的结构图。 电 磁隔离驱动智能开关的结构包括： 电极连杆 1、 动触头 2、 梅花连 接头 3、 动铁芯 4、 永久磁钢 5、 屏蔽罩 6、 绝缘腔体 7、 绝缘支撑 件 8、 铜支撑件 9、 分合闸线圏 10、 固体绝缘 1 1和波纹管 12。 由 于电磁隔离驱动智能开关设置有两个动触头 2 , 所以电磁隔离驱动 智能开关的左右两个单元是对称的， 电极连杆 1、 动触头 2、 梅花 连接头 3、 动铁芯 4、 永久磁钢 5、 屏蔽罩 6、 绝缘支撑件 8、 铜支 撑件 9、 分合闸线圏 10、 固体绝缘 1 1和波纹管 12分别设置在绝
缘腔体 7 的左右两个单元， 每个单元包含一组。 波纹管 12将绝缘 腔体 7的内部空间隔离成灭弧室 14和机构室 13。灭弧室 14位于绝 缘腔体 7的中间部位， 机构室 13位于灭弧室 14两侧， 动铁芯 4、 永久磁钢 5设置在机构室 13 内。 As shown in FIG. 1, it is a structural diagram of an electromagnetic isolation driving intelligent switch in the present invention. The structure of the electromagnetic isolation driving intelligent switch comprises: an electrode connecting rod 1, a moving contact 2, a plum blossom connecting head 3, a moving iron core 4, a permanent magnetic steel 5, a shield cover 6, an insulating cavity 7, an insulating support member 8, a copper support Piece 9, the closing and closing line 圏10, the solid insulation 1 1 and the bellows 12. Since the electromagnetic isolation driving intelligent switch is provided with two movable contacts 2, the left and right units of the electromagnetic isolation driving intelligent switch are symmetrical, the electrode connecting rod 1, the moving contact 2, the plum blossom connecting head 3, the moving iron core 4, The permanent magnet 5, the shield 6, the insulating support 8, the copper support 9, the opening and closing line 10, the solid insulation 1 and the bellows 12 are respectively disposed The left and right cells of the edge cavity 7 each contain a group. The bellows 12 isolates the internal space of the insulating cavity 7 into the arc extinguishing chamber 14 and the mechanism chamber 13. The arc extinguishing chamber 14 is located at an intermediate portion of the insulating cavity 7, the mechanism chamber 13 is located at both sides of the arc extinguishing chamber 14, and the movable iron core 4 and the permanent magnet 5 are disposed in the mechanism chamber 13.
绝缘腔体 7的内部抽真空， 两个电极连杆 1分别固定在绝缘腔 体 7的两端， 电极连杆 1设置有环状凸起， 在环状凸起的中部形成 一个凹坑， 绝缘支撑件 8设置在绝缘腔体 7的内壁上； 动触头 2设 置在绝缘腔体 7的内部， 当动触头 2处于开闸状态时， 动触头 2的 一个端部和电极连杆 1相接触， 顶到电极连杆 1 中间的凹坑内； 梅 花连接头 3 固定在电极连杆 1的环状凸起上， 梅花连接头 3在一端 开有通孔， 动触头 2套装在该通孔上， 无论在开闸状态还是在合闸 状态， 动触头 2始终和梅花连接头 3实现电连接， 处于导通状态； 铜支撑件 9位于梅花连接头 3和永久磁钢 5之间， 铜支撑件 9的外 侧边沿固定在绝缘支撑件 8上， 铜支撑件 9的中间开有通孔， 动触 头 2套装在该通孔上， 动触头 2的另一个端部位于灭弧室 14 ; 两块 7j 久磁钢 5设置在机构室 13 内， 7j 久磁钢 5 的外侧边沿固定在绝 缘支撑件 8上， 永久磁钢 5的中间开有通孔， 动触头 2套装在该通 孔上； 动铁芯 4设置在两块永久磁钢 5之间， 动铁芯 4固定在动触 头 2的外壁上； 固体绝缘 1 1设置绝缘腔体 7 的外壁上， 固体绝缘 1 1在对应于永久磁钢 5的位置开有凹槽， 分合闸线圏 10设置在该 凹槽内； 屏蔽罩 6设置在灭弧室 14 , 屏蔽罩 6固定在绝缘腔体 7的 内壁上， 屏蔽罩 6的长度和两个动触头 2的行程相适应； 波纹管 12 将绝缘腔体 7的内部空间分隔为机构室 13和灭弧室 14 , 波纹管 12 开有通孔， 动触头 2套装在该通孔内， 由于机构室 13和灭弧室 14
的真空度不同， 波纹管 12起隔离作用。 The inside of the insulating cavity 7 is evacuated, and two electrode connecting rods 1 are respectively fixed at two ends of the insulating cavity 7, and the electrode connecting rod 1 is provided with an annular protrusion, and a concave hole is formed in the middle of the annular convex, and the insulating The support member 8 is disposed on the inner wall of the insulating cavity 7; the movable contact 2 is disposed inside the insulating cavity 7, and when the movable contact 2 is in the open state, one end of the movable contact 2 and the electrode connecting rod 1 In contact with the top, to the recess in the middle of the electrode connecting rod 1; the plum blossom connector 3 is fixed on the annular protrusion of the electrode connecting rod 1, the plum blossom connector 3 has a through hole at one end, and the movable contact 2 is set in the through hole On the hole, whether in the open state or in the closed state, the movable contact 2 is always electrically connected with the plum blossom connector 3, and is in a conducting state; the copper support member 9 is located between the plum blossom connector 3 and the permanent magnet 5, The outer edge of the copper support member 9 is fixed on the insulating support member 8. The copper support member 9 has a through hole in the middle, the movable contact 2 is fitted on the through hole, and the other end of the movable contact 2 is located in the arc extinguishing chamber. 14; two 7 j long magnets 5 are arranged in the mechanism chamber 13, and the outer edge of the 7 j long magnet 5 is fixed at On the insulating support member 8, a through hole is formed in the middle of the permanent magnet 5, and the movable contact 2 is fitted on the through hole; the movable iron core 4 is disposed between the two permanent magnets 5, and the movable iron core 4 is fixed On the outer wall of the contact 2; the solid insulation 11 is disposed on the outer wall of the insulating cavity 7, and the solid insulation 11 is grooved at a position corresponding to the permanent magnet 5, and the opening and closing line 10 is disposed in the groove The shielding cover 6 is disposed in the arc extinguishing chamber 14 , and the shielding cover 6 is fixed on the inner wall of the insulating cavity 7 , the length of the shielding cover 6 is adapted to the stroke of the two moving contacts 2; the bellows 12 will insulate the cavity 7 The inner space is divided into a mechanism chamber 13 and an arc extinguishing chamber 14, and the bellows 12 is provided with a through hole, and the movable contact 2 is fitted in the through hole, due to the mechanism chamber 13 and the arc extinguishing chamber 14 The degree of vacuum is different, and the bellows 12 acts as an insulator.
如图 2所示， 是本发明中动触头在合闸状态时的状态图。 两块 永久磁钢 5的 N极和 S极是相对的， 当处于开闸状态时， 动铁芯 4 吸附在靠近电极连杆 1一侧的永久磁钢 5上。 As shown in Fig. 2, it is a state diagram of the movable contact in the closed state of the present invention. The N pole and the S pole of the two permanent magnets 5 are opposed, and when in the open state, the movable iron core 4 is attracted to the permanent magnet 5 near the side of the electrode link 1.
当需要合闸时， 分合闸线圏 10 通电并形成磁场， 该磁场给动 铁芯 4一个向反方向的力， 当处于合闸状态时， 动铁芯 4吸附在远 离电极连杆 1一侧的永久磁钢 5上。 When the closing is required, the opening and closing line 圏10 is energized to form a magnetic field, and the magnetic field gives the moving core 4 a force in the opposite direction. When in the closing state, the moving iron core 4 is attracted to the remote connecting rod 1 The side of the permanent magnet 5 is on.
另外， 利用本发明原理， 电磁隔离驱动智能开关可以设计成一 个动触头 2和一个静触头， 只需要保留一个动触头组件即可，或者， 可设置成两触头双驱动， 也可设置成一端触头固定， 一端触头驱动 的结构。 绝缘腔体 7 内部可以抽真空、 充以低气压 SF6气体、 高纯 N2或 SF6混合气体作为绝缘介质。 工业实用性 In addition, by using the principle of the invention, the electromagnetic isolation driving intelligent switch can be designed as a moving contact 2 and a static contact, and only one moving contact component needs to be retained, or can be set as two-contact dual driving, or It is configured to be fixed at one end and driven at one end. The inside of the insulating chamber 7 can be evacuated and filled with a low-pressure SF6 gas, a high-purity N2 or SF6 mixed gas as an insulating medium. Industrial applicability
本发明中， 操动机构与真空灭弧室直接连接， 封装在一个整体 的绝缘腔体外， 驱动线圏在绝缘腔体内， 与运动部件电气隔离， 省 略了机械传动系统， 提高了传动效率， 减少了零部件数， 整机不仅 结构筒单， 而且可靠性大大提高， 金属材料使用量减少。
In the present invention, the operating mechanism is directly connected to the vacuum interrupter, and is enclosed by an integral insulating cavity. The driving wire is electrically insulated from the moving parts, omitting the mechanical transmission system, improving the transmission efficiency and reducing With the number of parts, the whole machine is not only structurally simple, but also has greatly improved reliability and reduced use of metal materials.
Claims
1、 一种动触头组件， 用于实现开关或者断路器动触头的分闸 或者合闸， 其特征在于： 包括动铁芯、 两个永久磁钢和分合闸线圏； 所述动铁芯位于所述两个永久磁钢之间， 所述动铁芯固定在所述动 触头上， 所述永久磁钢中部开有第一通孔， 所述动触头套装在所述 第一通孔内， 所述分合闸线圏设置在绝缘腔体的外壁上。 1. A moving contact assembly for realizing opening or closing of a switch or a movable contact of a circuit breaker, characterized in that: comprising a moving iron core, two permanent magnets and a splitting brake line; An iron core is located between the two permanent magnets, the moving iron core is fixed on the movable contact, a first through hole is formed in a middle portion of the permanent magnetic steel, and the movable contact is set in the first In a through hole, the opening and closing line is disposed on an outer wall of the insulating cavity.
2、 如权利要求 1所述的动触头组件， 其特征在于： 所述绝缘 腔体的内壁设置有绝缘支撑件， 所述永久磁钢固定在所述绝缘支撑 件上。 2. The movable contact assembly according to claim 1, wherein: the inner wall of the insulating cavity is provided with an insulating support member, and the permanent magnet is fixed to the insulating support member.
3、 如权利要求 1所述的动触头组件， 其特征在于： 所述动铁 芯和永久磁钢设置在所述绝缘腔体隔离出的机构室内， 所述机构室 内部真空。 3. The moving contact assembly of claim 1, wherein: the moving iron core and the permanent magnet are disposed in a mechanism chamber separated from the insulating cavity, and the mechanism chamber is internally vacuumed.
4、 一种应用动触头组件的电磁隔离驱动智能开关， 包括绝缘 腔体、 动触头、 绝缘支撑件和电极连杆， 所述动触头设置在所述绝 缘腔体内部， 所述绝缘支撑件的外壁固定在所述绝缘腔体的内壁 上， 所述电极连杆固定在所述绝缘腔体的端部， 其特征在于： 还包 括动触头组件， 所述动触头组件包括分合闸线圏、 动铁芯和两个永 久磁钢， 所述动铁芯和两个永久磁钢设置在所述绝缘腔体的内部， 所述永久磁钢固定在所述绝缘支撑件上； 所述永久磁钢开有第一通 孔， 所述动触头套装在所述第一通孔上， 所述动触头的一个端部和 所述电极连杆电连接； 所述动铁芯设置在两块所述永久磁钢之间， 所述动铁芯固定在所述动触头的上； 所述分合闸线圏设置在绝缘腔 体的外壁上。 4 . An electromagnetic isolation driving intelligent switch applying a moving contact assembly, comprising an insulating cavity, a movable contact, an insulating support and an electrode connecting rod, wherein the movable contact is disposed inside the insulating cavity, the insulation An outer wall of the support member is fixed on an inner wall of the insulating cavity, and the electrode link is fixed at an end of the insulating cavity, and is characterized by: further comprising a movable contact assembly, the movable contact assembly comprising a closing wire 动, a moving iron core and two permanent magnets, the moving iron core and two permanent magnets are disposed inside the insulating cavity, and the permanent magnet is fixed on the insulating support; The permanent magnet has a first through hole, the movable contact is sleeved on the first through hole, and one end of the movable contact is electrically connected to the electrode link; And disposed between the two permanent magnets, the moving iron core is fixed on the movable contact; and the opening and closing wire is disposed on an outer wall of the insulating cavity.
5、 如权利要求 4所述的应用动触头组件的电磁隔离驱动智能 开关， 其特征在于： 所述绝缘腔体上设置有两组动触头组件。 5. The electromagnetic isolation driving intelligent switch of the movable contact assembly according to claim 4, wherein: the insulating cavity is provided with two sets of moving contact assemblies.
6、 如权利要求 4所述的应用动触头组件的电磁隔离驱动智能 开关， 其特征在于： 所述永久磁钢的外侧边沿固定在所述绝缘支撑 件上。 6. The electromagnetically isolated drive smart switch of the movable contact assembly of claim 4, wherein: the outer edge of the permanent magnet is fixed to the insulating support.
7、 如权利要求 4至 6任一项所述的应用动触头组件的电磁隔 离驱动智能开关， 其特征在于： 所述绝缘腔体内部设置有梅花连接 头和铜支撑件， 所述电极连杆设置有环状凸起， 所述梅花连接头固 定所述环状凸起上， 所述梅花连接头开有第三通孔， 所述动触头套 装在所述第三通孔上， 所述动触头和所述梅花连接头电连接； 所述 铜支撑件位于所述梅花连接头和所述永久磁钢之间， 所述铜支撑件 的外侧边沿固定在所述绝缘支撑件上， 所述铜支撑件开有第二通 孔， 所述动触头套装在所述第二通孔上， 所述动触头的另一个端部 延伸到所述铜支撑件的外部。 The electromagnetic isolation driving intelligent switch using the movable contact assembly according to any one of claims 4 to 6, wherein: the insulating cavity is provided with a plum connector and a copper support, and the electrode is connected The rod is provided with an annular protrusion, the plum blossom connector is fixed on the annular protrusion, the plum blossom connector has a third through hole, and the movable contact is set on the third through hole. The movable contact and the plum blossom connector are electrically connected; the copper support member is located between the plum blossom connector and the permanent magnet, and an outer edge of the copper support member is fixed on the insulating support member. The copper support member has a second through hole, the movable contact is sleeved on the second through hole, and the other end of the movable contact extends to the outside of the copper support.
8、 如权利要求 7所述的应用动触头组件的电磁隔离驱动智能 开关， 其特征在于： 所述绝缘腔体的外壁上设置有固体绝缘， 所述 固体绝缘在对应于所述永久磁钢的位置开有 槽， 所述分合闸线圏 固定在所述凹槽内。 8. The electromagnetic isolation driving intelligent switch of the movable contact assembly according to claim 7, wherein: the outer wall of the insulating cavity is provided with solid insulation, and the solid insulation corresponds to the permanent magnet The position is slotted, and the opening and closing line 圏 is fixed in the groove.
9、 如权利要求 7所述的应用动触头组件的电磁隔离驱动智能 开关， 其特征在于： 所述绝缘腔体的内部真空， 所述永久磁钢的外 侧设置有波紋管， 所述波紋管设置有第四通孔， 所述动触头套装在 所述第四通孔上； 所述波纹管将所述绝缘腔体的内部空间分隔为灭 弧室和机构室， 所述动铁芯和永久磁钢设置在所述机构室内。 9. The electromagnetic isolation driving intelligent switch of the movable contact assembly according to claim 7, wherein: the internal vacuum of the insulating cavity, the outer side of the permanent magnet is provided with a bellows, the bellows a fourth through hole is disposed, the movable contact is disposed on the fourth through hole; the bellows separates an inner space of the insulating cavity into an arc extinguishing chamber and a mechanism chamber, and the movable iron core and Permanent magnets are placed in the mechanism chamber.
10、 如权利要求 9所述的应用动触头组件的电磁隔离驱动智能开关， 其特征在于： 所述灭弧室设置有屏蔽罩， 所述屏蔽罩固定在所述绝缘腔体的 内壁上， 所述屏蔽罩的长度和两个动触头的行程相适应。 The electromagnetic isolation driving intelligent switch of the movable contact assembly according to claim 9, wherein: the arc extinguishing chamber is provided with a shielding cover, and the shielding cover is fixed on an inner wall of the insulating cavity, The length of the shield is adapted to the stroke of the two moving contacts.
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| CN2011101646192A CN102280304B (en) | 2011-06-17 | 2011-06-17 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
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| CN1130797A (en) * | 1994-10-31 | 1996-09-11 | 施耐德电器公司 | Vacuum electrical switch |
| JP2002033034A (en) * | 2000-07-13 | 2002-01-31 | Hitachi Ltd | Switchgear and system switching device using it |
| CN2570964Y (en) * | 2002-09-19 | 2003-09-03 | 曹剑 | Vacuum circuit breaker operating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102280304A (en) | 2011-12-14 |
| CN102280304B (en) | 2013-11-27 |
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