WO2018214602A1 - 一种散热型的三相磁保持继电器 - Google Patents

一种散热型的三相磁保持继电器 Download PDF

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Publication number
WO2018214602A1
WO2018214602A1 PCT/CN2018/077136 CN2018077136W WO2018214602A1 WO 2018214602 A1 WO2018214602 A1 WO 2018214602A1 CN 2018077136 W CN2018077136 W CN 2018077136W WO 2018214602 A1 WO2018214602 A1 WO 2018214602A1
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Prior art keywords
heat dissipation
pin
holding relay
phase magnetic
magnetic holding
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PCT/CN2018/077136
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English (en)
French (fr)
Inventor
李健全
陈挺
钱利国
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广西睿奕科技发展有限公司
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Publication of WO2018214602A1 publication Critical patent/WO2018214602A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/12—Ventilating; Cooling; Heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field

Definitions

  • the invention belongs to the technical field of relay devices, and in particular relates to a heat dissipation type three-phase magnetic holding relay.
  • three-phase magnetic holding relay is a new type of relay developed in recent years. It is a magnetic holding relay that simultaneously controls three sets of control loop systems by one magnetic circuit system. The three control groups are closed and open. The mutual conversion between the two is only instantaneously completed by the positive or negative DC pulse voltage of a certain width, and the relay coil does not need to continue to be energized after completion. The magnetic force of the permanent magnet can maintain the contact state of the relay.
  • the three-phase magnetic holding relay has three sets of control loop systems, while the ordinary magnetic holding relay has only one set of control loop systems, that is to say, the three-phase magnetic holding controls three sets of lines in use, and no one can have quality problems.
  • the temperature rise of the relay must be considered. If the heat dissipation is not good, the temperature rise will be too high: the light product can not be used normally or is not sensitive, and the heavy one is on the house or The factory brings fire hazards.
  • An object of the present invention is to provide a heat-dissipating three-phase magnetic holding relay to solve the problems of compact design of the magnetic holding relay, low heat dissipation, low sensitivity, and easy fire.
  • the present invention adopts the following technical solutions:
  • a heat dissipation type three-phase magnetic holding relay comprising: a housing, and three sets of control systems and magnetic circuit systems respectively installed on two sides of the housing;
  • the housing is composed of an upper cover and an outer casing
  • each set of the control system is composed of a moving contact, a moving spring seat, a three-moving spring, a static contact, and a static spring seat, and the moving spring seat and the static spring seat are respectively connected a pin is taken out of the magnetic holding relay;
  • the static contact is disposed on the static spring seat, and the movable contact is disposed on the moving spring;
  • the magnetic circuit system is composed of a bracket, a bobbin, a yoke iron, a magnetic steel component, and a pusher plate.
  • the bracket is disposed on the outer casing, and the magnetic steel component is disposed on the bracket.
  • the coil bobbin is wound with coils, respectively connected to the beginning and end of the coil, and the yoke of the magnetic yoke; the magnetic circuit system simultaneously pushes each group of the control by the pushing force of a pushing piece A spring block in the system to control the opening and closing of the moving spring seat.
  • the upper cover and the outer casing are provided with heat dissipation holes.
  • the upper cover and the outer casing are injection molded of epoxy resin.
  • the heat dissipation holes are square or circular.
  • one of the control system's spring springs is connected to the first pin
  • the set of control system's spring block is connected to the second pin
  • the other group of control systems is connected to the spring block.
  • a third pin the dynamic spring seat of the control system is connected to the fourth pin
  • the static spring seat of the control system is connected to the fifth pin
  • the dynamic spring seat of the control system is connected to the sixth pin
  • the first pin, the third pin, and the fifth pin are inputs
  • the second pin, the fourth pin, and the sixth pin are outputs.
  • the magnetic steel component further comprises a plastic body, a permanent magnet, and an armature piece.
  • the permanent magnet is disposed between two armature pieces, and the permanent magnet and the armature piece are injection molded and fixed by the plastic body, and the plastic body is epoxy resin.
  • the coil wound on the bobbin is an enamelled copper wire.
  • the mounting groove of the outer casing is provided with a rib, and the rib separates the metal piece from the plastic part of the outer casing to prevent the metal piece and the plastic part of the outer casing from being closely attached to each other for the purpose of isolating heat dissipation.
  • the rib is a heat dissipation rib, and the heat dissipation rib is also magnetically conductive.
  • the present invention has the following beneficial effects:
  • the invention provides a heat-dissipating three-phase magnetic holding relay. Compared with the conventional relay, the invention provides a plurality of heat dissipation holes on the casing, and at the same time, a plurality of heat dissipation ribs are arranged in the component design of the casing.
  • the method of separating the metal parts and the plastic parts of the outer casing achieves a good heat dissipation effect, thereby avoiding problems such as a decrease in sensitivity or a fire caused by poor heat dissipation of the relay, and is advantageous for popularization and use.
  • Figure 1 is a schematic view showing the appearance of the present invention.
  • Figure 2 is a schematic view of the internal structure of the present invention.
  • Figure 3 is a schematic cross-sectional view of a magnetic steel component of the present invention.
  • FIG. 4 is a graph showing temperature rise test data of the present invention and a conventional three-phase magnetic holding relay.
  • 1 is the upper cover
  • 2 is the outer casing
  • 3 is the heat dissipation hole
  • 4, 6, and 8 are the static spring seats
  • 5, 7, and 9 are the movable spring seats
  • 10 is the bracket
  • 11 is the yoke
  • 12 is the magnetic steel.
  • Components, 13 is a bobbin
  • 14 is a pusher
  • 15 is a moving contact
  • 16 is a moving reed
  • 17 is a static contact
  • 121 is a plastic body
  • 122 is a permanent magnet
  • 123 is an armature piece
  • Y1 is the first lead Pin
  • Y2 is the second pin
  • Y3 is the third pin
  • Y4 is the fourth pin
  • Y5 is the fifth pin
  • Y6 is the sixth pin.
  • a heat-dissipating three-phase magnetic holding relay comprises a casing and three sets of control systems and magnetic circuit systems respectively installed on two sides of the casing;
  • the casing is composed of an upper cover 1 and an outer casing 2 , and the upper cover 1 and the outer casing 2 are injection molded of epoxy resin; the upper cover 1 and the outer casing 2 are both provided with a heat dissipation hole 3, the heat dissipation hole 3 is square or circular;
  • three sets of control systems each consisting of a moving contact 15, a moving spring seat, a three-moving spring 16 , a static contact 17, and a static spring seat, the moving spring
  • the base and the spring block are respectively connected to a pin to lead out the magnetic holding relay, and a set of control system of the spring block 4 is connected to the first pin Y1, and the set of control system of the spring block 5 is connected to the second lead Foot Y2; another set of control system of the spring block 6 is connected to the third pin Y3, the set of control system of the spring block 7 is connected to the fourth pin Y4; a set of control system of the spring block 8 is connected to the fifth lead
  • the foot Y5, the moving spring seat 9 of the control system of the group is connected to the sixth pin Y6; the first pin Y1, the third pin Y3, and the fifth pin Y5 are input terminals, and the second pin Y2 is The fourth pin Y4 and the sixth pin Y6 are output ends; the static contact 17 is disposed on
  • the magnetic circuit system is composed of a bracket 10, a bobbin 13, a yoke iron 11, a magnetic steel assembly 12, and a pusher plate 14.
  • the bracket 10 is disposed on the outer casing 2, and the magnetic steel assembly 12 is disposed.
  • the magnetic steel assembly 12 further includes a plastic body 121, a permanent magnet 122, and an armature piece 123.
  • the permanent magnet 122 is disposed on the two armature pieces. Between 123, the permanent magnet 122 and the armature piece 123 are injection-molded and fixed by the plastic body 121, and the plastic body is 121-position epoxy; the coil bobbin 13 is wound with a coil of lacquer-coated copper wire.
  • the magnetic circuit system simultaneously pushes the moving spring seat in each group of the control system by a pushing force of the push piece 14 to control the Opening and closing of the spring seat;
  • the mounting groove of the outer casing 2 is provided with a rib, the rib is a heat dissipation rib, and the heat dissipation rib separates the metal piece from the plastic piece of the outer casing 2, avoiding the metal piece and the
  • the plastic parts of the outer casing 2 are closely designed to achieve the purpose of isolating heat dissipation, and the heat dissipation ribs also have Magnetic, can effectively avoid the interference of the magnetic circuit of the external magnetic field.
  • the present invention is labeled as 1#
  • the conventional three-phase magnetic holding relay is labeled 2#
  • 1# and 2# output temperature rise test and record data, draw the temperature rise test data curve, as shown in Figure 4, from the test results, 1# and 2# before 10 minutes of temperature rise data curve is almost Overlapping, the two curves begin to separate in the 20-60 minute period. After 60 minutes, the two curves reach a steady state.
  • the temperature rise of the phase magnetic holding relay is about 10 ° C, which indicates that the heat dissipation type three-phase magnetic holding relay of the present invention has a good heat dissipation effect compared with the prior art products.

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Abstract

一种散热型的三相磁保持继电器，包括壳体，安装在壳体两侧的三组控制系统、磁路系统；三组控制系统，每一组控制系统由动触点（15）、动簧座（5、7、9）、动簧片（16）、静触点（17）、静簧座（4、6、8）组成，动簧座、静簧座分别连接一引脚（Y1-Y6）引出磁保持继电器；静触点安置于静簧座上，动触点安置于动簧片上；磁路系统由支架（10）、线圈架（13）、轭铁（11）、磁钢组件（12）、推动片（14）组成，支架设置于外壳（2）上，磁钢组件设置于支架上的轭铁之间；线圈架缠绕有线圈，分别连接线圈的始、末端引出脚，以及导磁的轭铁；磁路系统通过一个推动片同时控制每一组控制系统中动簧座的开合。该散热型的三相磁保持继电器具有良好的散热性，可有效避免继电器因散热不良而导致灵敏度下降或引发火灾等问题。

Description

一种散热型的三相磁保持继电器 【技术领域】
本发明属于继电器设备技术领域，具体涉及一种散热型的三相磁保持继电器。
【背景技术】
随着国家智能电网的不断发展，预付表、智能电容器、智能复合开关等产品在智能电网应用上愈加广泛，同时对其内置磁保持继电器的要求亦越来越高，特别是三相的磁保持继电器，三相磁保持继电器是近几年发展起来的一种新型继电器，是一种由一个磁路系统同时控制三组控制回路系统的磁保持继电器，三个控制组是闭合与断开状态之间的相互转换仅依靠一定宽度的正向或反向直流脉冲电压激励线圈后瞬间完成，完成后继电器线圈无需继续通电，仅仅依靠永磁体的磁力就能维持继电器的触点状态不变。三相的磁保持继电器有三组控制回路系统，而普通的磁保持继电器只有一组控制回路系统，也就是说三相的磁保持在使用中控制三组线，任何一组都不能有质量问题，为了让三相磁保持继电器质量更可靠、使用寿命更长，必须考虑继电器温升问题，如果散热不好，温升过高会导致：轻者产品不能正常使用或不灵敏，重者对房屋或厂房带来火灾的隐患。
【发明内容】
本发明的目的在于提供一种散热型的三相磁保持继电器，以解决目前磁保持继电器设计紧凑、散热性不好导致灵敏度低，以及易引发火灾等问题。
为解决以上技术问题，本发明采用以下技术方案：
一种散热型的三相磁保持继电器，其特征在于，包括壳体，以及分别安装在壳体内两侧的三组控制系统、磁路系统；
所述壳体由上盖、外壳组成；
三组控制系统，每一组所述控制系统由一动触点、一动簧座、三动簧片、一静触点、一静簧座组成，所述动簧座和所述静簧座分别连接一引脚引出所述磁保 持继电器；所述静触点安置于所述静簧座上，所述动触点安置于所述动簧片上；
所述磁路系统由一支架、一线圈架、二轭铁、磁钢组件、一推动片组成，所述支架设置于所述外壳上，所述磁钢组件设置于所述支架上的二轭铁之间；所述线圈架上缠绕有线圈，分别连接线圈的始、末端引出脚，以及导磁的轭铁；所述磁路系统通过一个推动片的推动力同时推动每一组所述控制系统中的动簧座，以控制所述动簧座的开合。
优选地，所述上盖和所述外壳上均设置有散热孔。
再优选地，所述上盖和所述外壳为环氧树脂注塑成型。
更优选地，所述散热孔为方形或圆形。
优选地，所述三组控制系统中，其中一组控制系统的静簧座连接第一引脚，该组控制系统的动簧座连接第二引脚；另一组控制系统的静簧座连接第三引脚，该组控制系统的动簧座连接第四引脚；再一组控制系统的静簧座连接第五引脚，该组控制系统的动簧座连接第六引脚；所述第一引脚、第三引脚、第五引脚为输入端，所述第二引脚、第四引脚、第六引脚为输出端。
优选地，所述磁钢组件还包括塑料体、永久磁铁、衔铁片。
再优选地，所述永久磁铁设置于两衔铁片之间，所述永久磁铁和所述衔铁片由所述塑料体注塑成型固定，所述塑料体为环氧树脂塑。
优选地，所述线圈架上缠绕的线圈为漆包铜线。
优选地，所述外壳的安装槽内设置有凸筋，该凸筋将金属件和所述外壳塑料件隔开，避免金属件和所述外壳塑料件紧贴设计，以达到隔离散热的目的。
再优选地，所述凸筋为散热筋，该散热筋还具有导磁性。
与现有技术相比，本发明具有以下有益效果：
本发明提供了一种散热型的三相磁保持继电器，与传统继电器相比，本发明在壳体上设置了多个散热孔，同时在壳体内的零部件设计上，采用设置多个散热突筋的方法使金属件和外壳塑料件相互隔开，达到了良好的散热效果，从而避免继电器因散热不良而导致灵敏度下降或引发火灾等问题，有利于推广使用。
【附图说明】
图1是本发明的外观结构示意图。
图2是本发明的内部结构示意图。
图3是本发明的磁钢组件截面结构示意图。
图4是本发明与传统三相磁保持继电器温升测试数据曲线图。
图中，1为上盖，2为外壳，3为散热孔，4、6、8为静簧座，5、7、9为动簧座，10为支架，11为轭铁，12为磁钢组件，13为线圈架，14为推动片，15为动触点，16为动簧片，17为静触点，121为塑料体，122为永久磁铁，123为衔铁片，Y1为第一引脚，Y2为第二引脚，Y3为第三引脚，Y4为第四引脚，Y5为第五引脚，Y6为第六引脚。
【具体实施方式】
下面结合具体实施方式并对照附图对本发明作进一步详细说明。应该强调的是，下述说明仅仅是示例性的，而不是为了限制本发明的范围及其应用。
一种散热型的三相磁保持继电器，包括壳体，以及分别安装在壳体内两侧的三组控制系统、磁路系统；
如图1所示，所述壳体由上盖1、外壳2组成，所述上盖1和所述外壳2为环氧树脂注塑成型；所述上盖1和所述外壳2上均设置有散热孔3，所述散热孔3为方形或圆形；
如图2所示，三组控制系统，每一组所述控制系统由一动触点15、一动簧座、三动簧片16、一静触点17、一静簧座组成，所述动簧座和所述静簧座分别连接一引脚引出所述磁保持继电器，且其中一组控制系统的静簧座4连接第一引脚Y1，该组控制系统的动簧座5连接第二引脚Y2；另一组控制系统的静簧座6连接第三引脚Y3，该组控制系统的动簧座7连接第四引脚Y4；再一组控制系统的静簧座8连接第五引脚Y5，该组控制系统的动簧座9连接第六引脚Y6；所述第一引脚Y1、第三引脚Y3、第五引脚Y5为输入端，所述第二引脚Y2、第四引脚Y4、第六引脚Y6为输出端；所述静触点17安置于所述静簧座上，所述动触点15安置于所述动簧片16上；
所述磁路系统由一支架10、一线圈架13、二轭铁11、磁钢组件12、一推动 片14组成，所述支架10设置于所述外壳2上，所述磁钢组件12设置于所述支架10上的二轭铁11之间；如图3所示，所述磁钢组件12还包括塑料体121、永久磁铁122、衔铁片123，所述永久磁铁122设置于两衔铁片123之间，所述永久磁铁122和所述衔铁片123由所述塑料体121注塑成型固定，所述塑料体121位环氧树脂；所述线圈架13上缠绕有漆包铜线的线圈，分别连接线圈的始、末端引出脚，以及导磁的轭铁11；所述磁路系统通过一个推动片14的推动力同时推动每一组所述控制系统中的动簧座，以控制所述动簧座的开合；所述外壳2的安装槽内设置有凸筋，所述凸筋为散热筋，该散热筋将金属件和所述外壳2塑料件隔开，避免金属件和所述外壳2塑料件紧贴设计，以达到隔离散热的目的，所述散热筋还具有导磁性，可以有效避免所述磁路系统受到外界磁场的干扰。
为验证本发明的有益效果，对比本发明与传统三相磁保持继电器温升测试数据，本发明标为1#，传统三相磁保持继电器标为2#，在相同的条件下对1#和2#的输出端温升进行试验并记录数据，绘制温升测试数据曲线图，如图4所示，从测试结果可以得出，1#和2#在10分钟之前的温升数据曲线几乎是重叠的，20～60分钟阶段两条曲线开始分离，60分钟后两条曲线到达稳定状态，在曲线图中可以明显看出本发明的散热型三相磁保持继电器比不具备散热条件的传统三相磁保持继电器温升低10℃左右，说明本发明的散热型三相磁保持继电器相比现有技术产品具有良好的散热效果。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明，对于所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。

Claims (10)

  1. 一种散热型的三相磁保持继电器，其特征在于，包括：壳体，以及分别安装在壳体内两侧的三组控制系统、磁路系统；
    所述壳体由上盖、外壳组成；
    三组控制系统，每一组所述控制系统由一动触点、一动簧座、三动簧片、一静触点、一静簧座组成，所述动簧座和所述静簧座分别连接一引脚引出所述磁保持继电器；所述静触点安置于所述静簧座上，所述动触点安置于所述动簧片上；
    所述磁路系统由一支架、一线圈架、二轭铁、磁钢组件、一推动片组成，所述支架设置于所述外壳上，所述磁钢组件设置于所述支架上的二轭铁之间；所述线圈架上缠绕有线圈，分别连接线圈的始、末端引出脚，以及导磁的轭铁；所述磁路系统通过一个推动片的推动力同时推动每一组所述控制系统中的动簧座，以控制所述动簧座的开合。
  2. 根据权利要求1所述的散热型的三相磁保持继电器，其特征在于：所述上盖和所述外壳上均设置有散热孔。
  3. 根据权利要求2所述的散热型的三相磁保持继电器，其特征在于：所述上盖和所述外壳为环氧树脂注塑成型。
  4. 根据权利要求2所述的散热型的三相磁保持继电器，其特征在于：所述散热孔为方形或圆形。
  5. 根据权利要求1所述的散热型的三相磁保持继电器，其特征在于：所述三组控制系统中，其中一组控制系统的静簧座连接第一引脚，该组控制系统的动簧座连接第二引脚；另一组控制系统的静簧座连接第三引脚，该组控制系统的动簧座连接第四引脚；再一组控制系统的静簧座连接第五引脚，该组控制系统的动簧座连接第六引脚；所述第一引脚、第三引脚、第五引脚为输入端，所述第二引脚、第四引脚、第六引脚为输出端。
  6. 根据权利要求1所述的散热型的三相磁保持继电器，其特征在于：所述磁钢组件还包括塑料体、永久磁铁、衔铁片。
  7. 根据权利要求6所述的散热型的三相磁保持继电器，其特征在于：所述永久磁铁设置于两衔铁片之间，所述永久磁铁和所述衔铁片由所述塑料体注塑成型 固定，所述塑料体为环氧树脂塑。
  8. 根据权利要求1所述的散热型的三相磁保持继电器，其特征在于：所述线圈架上缠绕的线圈为漆包铜线。
  9. 根据权利要求1所述的散热型的三相磁保持继电器，其特征在于：所述外壳的安装槽内设置有凸筋，该凸筋将金属件和所述外壳塑料件隔开，避免金属件和所述外壳塑料件紧贴设计，以达到隔离散热的目的。
  10. 根据权利要求9所述的散热型的三相磁保持继电器，其特征在于：所述凸筋为散热筋，该散热筋还具有导磁性。
PCT/CN2018/077136 2017-05-26 2018-02-24 一种散热型的三相磁保持继电器 WO2018214602A1 (zh)

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CN109887805B (zh) * 2019-03-22 2020-10-20 广西睿奕科技开发有限公司 可提高抗短路能力的双路磁保持继电器
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