WO2018077190A1 - 带辅助触点的直流接触器 - Google Patents

带辅助触点的直流接触器 Download PDF

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Publication number
WO2018077190A1
WO2018077190A1 PCT/CN2017/107668 CN2017107668W WO2018077190A1 WO 2018077190 A1 WO2018077190 A1 WO 2018077190A1 CN 2017107668 W CN2017107668 W CN 2017107668W WO 2018077190 A1 WO2018077190 A1 WO 2018077190A1
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WIPO (PCT)
Prior art keywords
auxiliary
contact
contactor
spring
active
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PCT/CN2017/107668
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English (en)
French (fr)
Inventor
洪尧生
钟叔明
简勇奇
施生圣
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厦门宏发电力电器有限公司
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Publication of WO2018077190A1 publication Critical patent/WO2018077190A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets

Definitions

  • the invention relates to a DC contactor.
  • a contactor is an automated control device that uses a current flowing through a coil to generate a magnetic field that closes the contacts to achieve control of the load.
  • the DC contactor usually includes a main contact (including an active contact and a main stationary contact) for connecting the load to perform on-off control of the load, wherein the main static contact is mounted on the main lead, and the active contact is It is arranged on the moving spring and is mounted on the pushing mechanism. When the coil is excited, the pushing mechanism drives the moving spring to move, so that the active contact and the main static contact are in contact.
  • the DC contactor of the prior art is usually also provided with a micro switch, which is installed at a corresponding position in the DC contactor, and is provided with a dial on the pushing mechanism.
  • the boom when the pushing mechanism drives the moving spring to make the active contact and the main static contact contact, the pushing mechanism simultaneously drives the moving arm to move, and the moving arm of the micro switch is touched by the toggle arm to make the micro switch be turned on or Disconnected, through the circuit board of the DC contactor to detect the on or off signal of the micro switch, thereby detecting the on/off condition of the main contact.
  • the DC contactor of the prior art which uses the micro switch to detect the on/off condition of the main contact mainly has the following disadvantages: the structure is too complicated and the reliability is relatively poor; since the micro switch needs to be installed, the product can only adopt the plastic sealing structure. Therefore, it is only suitable for the case where the rated load of the main contact is low; the micro switch limits some parameters of the DC contactor; the micro switch needs external procurement, which increases the cost of the DC contactor.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a DC contactor with an auxiliary contact, which has a simple structure, high reliability, can improve the load of the main contact, and can design various load types and contact types. .
  • a DC contactor with an auxiliary contact comprising a pushing mechanism, an active spring having a double active contact, and two main leading ends respectively provided with a main static contact
  • the driving spring is mounted on the pushing mechanism, and the pushing mechanism acts to bring the active contact into contact with or separate from the main static contact.
  • the DC contactor further includes an auxiliary moving spring having a double auxiliary moving contact and at least two auxiliary leading ends respectively configured with auxiliary static contacts, the auxiliary moving spring being mounted on the pushing mechanism, the pushing mechanism The action drives the auxiliary moving contact to contact or separate from the auxiliary static contact.
  • the active contact and the main static contact are configured as a normally open structure, and when the active contact is in contact with the main stationary contact, the auxiliary movable contact is The auxiliary static contact is contacted or separated.
  • the auxiliary lead ends are four, wherein two of the auxiliary lead ends are set as auxiliary auxiliary open ends, and the other two auxiliary lead ends are set as auxiliary normally closed lead ends,
  • the auxiliary normally open terminals are respectively disposed at positions corresponding to the auxiliary moving contacts of the auxiliary moving spring.
  • the auxiliary lead ends are two, the two auxiliary lead ends are set as auxiliary auxiliary open ends, and the two auxiliary normally open terminals are respectively set in auxiliary touches corresponding to the auxiliary moving springs. The location of the point.
  • the auxiliary lead ends are two, the two auxiliary lead ends are set as auxiliary auxiliary closed ends, and the two auxiliary normally closed lead ends are respectively arranged in auxiliary moving touches corresponding to the auxiliary moving springs. The location of the point.
  • the DC contactor further includes a cover, and the main lead end and the auxiliary normally open lead end are respectively mounted on the cover, so that the active contact, the main static contact, and the auxiliary movement Both the contact and the auxiliary stationary contact are received within the cavity of the housing.
  • the cover is provided with an upper step and a lower step, and the main lead end and the auxiliary normally open lead end are respectively installed at the upper step and the lower step, thereby making the active contact and the main
  • the mating position of the stationary contact, the mating position of the auxiliary movable contact and the auxiliary stationary contact are respectively in a space adjacent to the upper step and a space adjacent to the lower step.
  • the casing is a ceramic casing or a plastic casing.
  • the active spring and the auxiliary moving spring are both in a straight structure, and the projection of the active spring and the auxiliary moving spring on a plane is substantially vertical.
  • the pushing mechanism comprises a pushing seat, a pushing rod and a U-shaped basket, the pushing seat is fixed at one end of the pushing rod, and the U-shaped basket is mounted on the pushing seat, the auxiliary moving spring Fixed on the pusher seat, the active spring is mounted in the U-shaped basket by a contact spring, one end of the contact spring abuts the active spring and the other end abuts on the pusher seat.
  • the auxiliary moving spring is a resilient sheet structure to achieve an overtravel of the auxiliary contact by elastic deformation of the auxiliary moving spring.
  • the invention adopts an auxiliary moving spring with two auxiliary moving contacts and at least two in the DC contactor.
  • the auxiliary lead ends of the auxiliary static contacts are respectively arranged, the auxiliary moving springs are also mounted on the pushing mechanism, and the auxiliary moving contacts are simultaneously contacted or separated from the auxiliary static contacts when the pushing mechanism is actuated, and the invention is directly driven
  • An auxiliary moving spring is added to the mechanism, and one or two sets of auxiliary static contacts are added to the leading end to realize the function of one or two sets of auxiliary contacts, and the structure is simpler compared with the original micro switch mode. More reliable features.
  • FIG. 1 is a schematic view showing a partial three-dimensional structure of an embodiment of a DC contactor of the present invention
  • Figure 2 is a plan view of Figure 1, including a ceramic cover;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 2;
  • Figure 5 is an enlarged schematic view of a portion C of Figure 4.
  • Figure 6 is a plan view of an embodiment of the DC contactor of the present invention, which does not include a ceramic cover and a U-shaped basket thereof;
  • Figure 7 is a cross-sectional view taken along line D-D of Figure 6;
  • Figure 8 is a cross-sectional view taken along line E-E of Figure 6.
  • a DC contactor with an auxiliary contact of the present invention includes a pushing mechanism 1, an active spring 2 having a double active contact, and two main leads respectively provided with a main stationary contact. End 3.
  • the active contact may be integrally disposed on the active spring 2, or may be a separate component mounted on the active spring 2.
  • the active contact is integrally disposed on the active spring 2; likewise, the main static contact may be integrated. It is disposed on the main lead-out end 3, or a separate part is mounted on the main lead-out end 3.
  • the main static-contact is integrally provided on the main lead-out end 3.
  • the drive spring 2 is mounted on the push mechanism 1 to bring the active contact into contact with or separate from the main stationary contact when the push mechanism 1 is actuated.
  • the DC contactor further includes an auxiliary moving spring 4 having a double auxiliary moving contact 41 and at least two auxiliary leading ends respectively provided with auxiliary fixed contacts.
  • the auxiliary moving spring 4 is also mounted on the pushing mechanism 1 and also makes the auxiliary moving contact 41 contact or separate from the auxiliary static contact when the pushing mechanism 1 is actuated; likewise, the auxiliary moving contact 41 can be integrally disposed in On the auxiliary moving spring 4, a separate component may be mounted on the auxiliary moving spring 4.
  • the auxiliary movable contact 41 is attached to the auxiliary moving spring 4 as a separate component.
  • the auxiliary static contact may also be integrally disposed on the auxiliary lead end, or a separate part may be mounted on the auxiliary lead end. In this embodiment, the auxiliary static contact is integrally disposed on the auxiliary lead end.
  • the active contact and the main static contact are configured as a normally open structure.
  • the push mechanism 1 When the push mechanism 1 is actuated to bring the active contact into contact with the main static contact, the push mechanism 1 also acts as an auxiliary move. Contact 41 is in contact or separate from the auxiliary stationary contact.
  • the auxiliary terminals are four, wherein the two auxiliary terminals are set as the auxiliary normally open terminals 51, and the other two auxiliary terminals are set as the auxiliary normally closed terminals 52, and the two auxiliary normally open terminals.
  • 51 is respectively disposed at a position corresponding to the auxiliary movable contact 41 of the auxiliary moving spring, and the position is in a moving direction in which the pushing mechanism contacts the active stationary contact.
  • the DC contactor further includes a ceramic cover 6, and the main lead end 3 and the auxiliary normally open end 51 are respectively mounted on the ceramic cover 6, so that the active contact, the main static contact, and the auxiliary movement Both the contact and the auxiliary stationary contact are housed within the ceramic cavity of the ceramic housing 6.
  • the ceramic cover 6 is provided with an upper step 62 and a lower step 63, and the main lead end 3 and the auxiliary normally open end 51 are respectively mounted at the upper and lower steps of the cover, that is, the main lead end 3 is installed at the upper step 62 of the ceramic casing 6, and the auxiliary normally open terminal 51 is mounted at the lower step 63 of the ceramic casing 6, so that the position of the active contact and the main stationary contact, the auxiliary movable contact and The mating positions of the auxiliary stationary contacts are respectively located in a space adjacent to the upper step 62 and a space adjacent to the lower step 63.
  • the active spring 2 and the auxiliary moving spring 4 are both in a straight structure, and the active spring 2 and the auxiliary moving spring 4 are The projection on the plane is roughly vertical.
  • the pushing mechanism 1 includes a pusher seat 11, a pusher bar 12 and a U-shaped basket (not shown), the pusher seat 11 is fixed to one end of the pusher bar 12, and the other end of the pusher bar 12 is coupled
  • the iron core 13 the U-shaped basket is mounted on the pusher seat 11, the auxiliary moving spring 4 is fixed on the pusher seat 11, the active spring 2 is mounted in the U-shaped basket by the contact spring 21, one end of the contact spring 21
  • the other end is abutted on the pusher seat 11, and the active spring 2 simultaneously abuts against the U-shaped basket, and the contact spring 21 is used to achieve the overtravel of the main contact.
  • the auxiliary moving spring 4 is a resilient sheet structure for utilizing the elastic deformation of the auxiliary moving spring 4 to achieve overtravel of the auxiliary contact.
  • a DC contactor with an auxiliary contact adopts an auxiliary moving spring 4 having a double auxiliary moving contact in a DC contactor and at least two auxiliary leading ends respectively provided with auxiliary static contacts, which are auxiliary
  • the moving spring 4 is also mounted on the pushing mechanism 1 and also makes the auxiliary moving contact contact or separate from the auxiliary static contact when the pushing mechanism 1 is operated.
  • the auxiliary moving spring 4 is directly added to the pushing mechanism 1 . Then add two sets of auxiliary static contacts (or only one set) on the lead end to realize the functions of the two sets of auxiliary contacts. Compared with the original micro switch mode, the structure is simpler and more reliable. specialty.
  • the invention relates to a DC contactor with auxiliary contacts, which can design auxiliary contacts of various load types and contact types, and can adopt a set of normally open auxiliary contacts or normally closed auxiliary contacts to realize synchronous monitoring main touch
  • the function of point-on-off can also realize other circuit functions by using a set of normally open auxiliary contacts or normally closed auxiliary contacts, such as energy-saving function, etc., and can also use two sets of auxiliary contacts respectively (such as a group of the present embodiment).
  • the auxiliary contact and the set of normally closed auxiliary contacts are simultaneously realized to simultaneously realize the synchronous monitoring of the main contact opening and closing and the realization of the circuit energy saving function, or both are used for realizing the synchronous monitoring of the main contact to achieve double insurance.
  • the auxiliary lead ends are two, the two auxiliary lead ends are set as auxiliary normally open terminals, and the two auxiliary normally open terminals are respectively arranged in auxiliary corresponding to the auxiliary moving springs.
  • the position of the movable contact is in the moving direction in which the pushing mechanism brings the main contact into contact.
  • the auxiliary lead ends are also two, the two auxiliary lead ends are set as auxiliary auxiliary closed ends, and the two auxiliary normally closed lead ends are respectively arranged corresponding to the auxiliary moving springs.
  • the position of the auxiliary moving contact is in the moving direction in which the pushing mechanism separates the main contact.
  • the ceramic structure is used, and both the auxiliary contact and the main contact are welded and sealed in the ceramic cavity, which can be adapted to the high load of the main contact.
  • the structure of the invention can design a plurality of auxiliary contacts of the load type and the contact type, and can adopt a set of normally open auxiliary contacts or normally closed auxiliary contacts to realize the function of synchronously monitoring the opening and closing of the main contacts; Using a set of normally open auxiliary contacts Or normally closed auxiliary contacts to achieve other circuit functions, such as energy-saving functions; can also use two sets of auxiliary contacts (a set of normally open auxiliary contacts and a set of normally closed auxiliary contacts) to simultaneously achieve synchronous monitoring of the main contacts The function of turning on and off and realizing energy saving of the circuit; and connecting the normally open end of the auxiliary lead end with the normally closed end to form a converted auxiliary contact.
  • the solution of the invention can adopt the plastic sealing structure to adapt to the lower rated load of the main contact; and can adopt the ceramic structure to weld and seal the auxiliary contact and the main contact in the ceramic cavity to adapt Used when the main contact load is high.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)

Abstract

一种带辅助触点的直流接触器，包括推动机构、具有双主动触点的主动簧和两个分别配置有主静触点的主引出端。主动簧安装在推动机构上，推动机构动作带动主动触点与主静触点接触或分离。其中直流接触器还包括具有双辅助动触点的辅助动簧和至少两分别配置有辅助静触点的辅助引出端，辅助动簧安装在推动机构上，推动机构动作带动辅助动触点与辅助静触点接触或分离。

Description

带辅助触点的直流接触器
交叉引用
本公开要求于2016年10月26日提交的申请号为201610947762.1的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本发明涉及一种直流接触器。
背景技术
接触器是一种自动化的控制电器，它是利用线圈流过电流产生磁场，使触头闭合，以达到控制负载的电器。
直流接触器通常包括用来连接负载以实现对负载进行通断控制的主触点(包括主动触点和主静触点)，其中主静触点是装在主引出端上，主动触点是设在动簧上并安装在推动机构上，当线圈激励时，推动机构带动动簧运动，使主动触点和主静触点接触。现有技术的这种直流接触器为了检测主触点的通断情况，通常还安装有一个微动开关，微动开关是装在直流接触器内的对应位置，在推动机构上则装有一拨动臂，当推动机构带动动簧运动使主动触点和主静触点接触时，推动机构同时带动拨动臂运动，通过拨动臂触动微动开关的动臂，使微动开关接通或断开，通过直流接触器的电路板对微动开关接通或断开信号的检测，从而实现对主触点通断情况的检测。现有技术的这种利用微动开关检测主触点通断情况的直流接触器主要存在如下弊端：结构上太复杂，可靠性相对较差；由于需要安装微动开关，产品只能采用塑封结构，从而仅适用于主触点额定负载较低的场合；微动开关限制了直流接触器的一些参数；微动开关需要外部采购，增加了直流接触器的成本。
发明内容
本发明的目的在于克服现有技术的不足，提供一种带辅助触点的直流接触器，结构简单、可靠性高，并可提高主触点负载以及可设计出多种负载类型和触点类型。
本发明解决其技术问题所采用的技术方案是：一种带辅助触点的直流接触器，包括推动机构、具有双主动触点的主动簧和两个分别配置有主静触点的主引出端，所述主动簧安装在所述推动机构上，所述推动机构动作带动所述主动触点与所述主静触点接触或分离。 其中所述直流接触器还包括具有双辅助动触点的辅助动簧和至少两分别配置有辅助静触点的辅助引出端，所述辅助动簧安装在所述推动机构上，所述推动机构动作带动所述辅助动触点与所述辅助静触点接触或分离。
根据本发明的一实施例，所述主动触点与所述主静触点之间设为常开结构，当所述主动触点与主静触点接触时，所述辅助动触点与所述辅助静触点接触或分离。
根据本发明的一实施例，所述辅助引出端为四个，其中两个所述辅助引出端设为辅助常开引出端，另外两个所述辅助引出端设为辅助常闭引出端，两个所述辅助常开引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
根据本发明的一实施例，所述辅助引出端为两个，该两个辅助引出端设为辅助常开引出端，两个辅助常开引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
根据本发明的一实施例，所述辅助引出端为两个，该两个辅助引出端设为辅助常闭引出端，两个辅助常闭引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
根据本发明的一实施例，所述直流接触器还包括罩壳，所述主引出端和辅助常开引出端分别安装在所述罩壳上，使主动触点、主静触点、辅助动触点和辅助静触点都容纳在所述罩壳的腔内。
根据本发明的一实施例，所述罩壳设有上台阶和下台阶，所述主引出端和辅助常开引出端分别安装在所述上台阶、下台阶处，从而使主动触点与主静触点的配合位置、辅助动触点与辅助静触点的配合位置分别处在邻近所述上台阶的空间和邻近所述下台阶的空间中。
根据本发明的一实施例，所述罩壳为陶瓷罩壳或塑料罩壳。
根据本发明的一实施例，所述主动簧和所述辅助动簧均为一字型结构，且所述主动簧与所述辅助动簧在平面上的投影大致呈垂直状态。
根据本发明的一实施例，所述推动机构包括推动座、推动杆和U型篮，所述推动座固定在推动杆的一端，U型篮安装在所述推动座上，所述辅助动簧固定在所述推动座上，所述主动簧通过一触点弹簧安装在U型篮内，所述触点弹簧的一端抵于所述主动簧，另一端抵在所述推动座上。
根据本发明的一实施例，所述辅助动簧为具有弹性的薄片结构，以利用辅助动簧的弹性变形实现辅助触点的超行程。
与现有技术相比较，本发明的有益效果是：
本发明由于采用了在直流接触器中还设有具有双辅助动触点的辅助动簧和至少两个 分别配置有辅助静触点的辅助引出端，辅助动簧也安装在推动机构上，并使推动机构动作时也同时使辅助动触点与辅助静触点接触或分离，本发明是直接在推动机构上增加辅助动簧，再在引出端上增加一组或两组辅助静触点，实现一组或两组辅助触点的功能，相比较于原有的微动开关模式，具有结构更加简单、可靠性更高的特点。
本发明中通过以下参照附图对优选实施例的说明，本发明的上述以及其它目的、特征和优点将更加明显。
附图说明
图1是本发明直流接触器一实施例的局部立体构造的示意图；
图2是图1的的俯视图，含有陶瓷罩壳；
图3是沿图2中A-A线的剖视图；
图4是沿图2中B-B线的剖视图；
图5是图4中的C部放大示意图；
图6是本发明直流接触器一实施例的俯视图，不含有陶瓷罩壳用及其U型篮；
图7是沿图6中D-D线的剖视图；
图8是沿图6中E-E线的剖视图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之 外还可存在另外的要素/组成部分/等；用语“第一”、“第二”等仅作为标记使用，不是对其对象的数量限制。
参见图1至图8所示，本发明的一种带辅助触点的直流接触器，包括推动机构1、具有双主动触点的主动簧2和两个分别配置有主静触点的主引出端3。主动触点可以是一体设置在主动簧2上，也可以是单独的零件安装在主动簧2上，本实施例采用主动触点一体设置在主动簧2上；同样，主静触点可以是一体设置在主引出端3上，也可以是单独的零件安装在主引出端3上，本实施例采用主静触点一体设置在主引出端3上。所述主动簧2安装在推动机构1上以在推动机构1动作时使主动触点与主静触点接触或分离。
所述直流接触器还包括具有双辅助动触点41的辅助动簧4和至少两分别配置有辅助静触点的辅助引出端。所述辅助动簧4也安装在推动机构1上，并使推动机构1动作时也使辅助动触点41与辅助静触点接触或分离；同样的，辅助动触点41可以是一体设置在辅助动簧4上，也可以是单独的零件安装在辅助动簧4上，本实施例采用辅助动触点41为单独零件而安装在辅助动簧4上。辅助静触点也可以是一体设置在辅助引出端上，也可以是单独的零件安装在辅助引出端上，本实施例采用辅助静触点一体设置在辅助引出端上。
在一实施例中，主动触点与主静触点之间设为常开结构，当推动机构1动作使主动触点与主静触点接触时，所述推动机构1动作时也使辅助动触点41与辅助静触点接触或分离。
在一实施例中，辅助引出端为四个，其中两个辅助引出端设为辅助常开引出端51，另外两个辅助引出端设为辅助常闭引出端52，两个辅助常开引出端51分别设置在对应于辅助动簧的辅助动触点41的位置处，且该位置是在推动机构使主动静触点接触的移动方向上。
在一实施例中，直流接触器还包括陶瓷罩壳6，所述主引出端3和辅助常开引出端51分别安装在陶瓷罩壳6上，使主动触点、主静触点、辅助动触点和辅助静触点都容纳在陶瓷罩壳6的陶瓷腔内。
在一实施例中，陶瓷罩壳6设有上台阶62和下台阶63，所述主引出端3和辅助常开引出端51分别安装在罩壳的上、下台阶处，即，主引出端3安装在陶瓷罩壳6的上台阶62处，辅助常开引出端51安装在陶瓷罩壳6的下台阶63处，从而使主动触点与主静触点的配合位置、辅助动触点与辅助静触点的配合位置分别处在邻近上台阶62的空间和邻近下台阶63的空间中。
在一实施例中，主动簧2和辅助动簧4均为一字型结构，且主动簧2与辅助动簧4在 平面上的投影大致呈垂直状态。
在一实施例中，推动机构1包括推动座11、推动杆12和U型篮(图中未示出)，所述推动座11固定在推动杆12的一端，推动杆12的另一端连接动铁芯13，U型篮安装在推动座11上，所述辅助动簧4固定在推动座11上，所述主动簧2通过触点弹簧21安装在U型篮内，触点弹簧21的一端抵于主动簧2，另一端抵在推动座11上，主动簧2同时抵在U型篮上，利用触点弹簧21实现主触点的超行程。
在一实施例中，辅助动簧4为具有弹性的薄片结构，以利用辅助动簧4的弹性变形实现辅助触点的超行程。
本发明的一种带辅助触点的直流接触器，采用了在直流接触器中设有具有双辅助动触点的辅助动簧4和至少两分别配置有辅助静触点的辅助引出端，辅助动簧4也安装在推动机构1上，并使推动机构1动作时也使辅助动触点与辅助静触点接触或分离，本发明实施例是直接在推动机构1上增加辅助动簧4，再在引出端上增加两组辅助静触点(也可以是仅有一组)，实现两组辅助触点的功能，相比较于原有的微动开关模式，具有结构更加简单、可靠性更高的特点。
本发明的一种带辅助触点的直流接触器，可设计出多种负载类型和触点类型的辅助触点，可以采用一组常开辅助触点或常闭辅助触点实现同步监测主触点通断的功能，也可以利用一组常开辅助触点或常闭辅助触点实现其他电路功能，比如节能功能等，还可以分别使用两组辅助触点(如本实施例的一组常开辅助触点和一组常闭辅助触点)来同时实现同步监测主触点通断及其实现电路节能等功能，或者是都用来实现同步监测主触点通断达到双保险的目的，还可以将辅助引出端中常开的一端和常闭的一端连接在一起，形成转换的辅助触点。当仅采用一组常开辅助触点时，辅助引出端为两个，该两个辅助引出端设为辅助常开引出端，两个辅助常开引出端分别设置在对应于辅助动簧的辅助动触点的位置处，且该位置是在推动机构使主触点接触的移动方向上。当仅采用一组常闭辅助触点时，辅助引出端也为两个，该两个辅助引出端设为辅助常闭引出端，两个辅助常闭引出端分别设置在对应于辅助动簧的辅助动触点的位置处，且该位置是在推动机构使主触点分离的移动方向上。
本实施例中，是采用陶瓷结构，将辅助触点和主触点都焊接密封于陶瓷腔体内，能够适应于主触点负载较高。当应用于主触点额定负载较低时，可以选择采用塑封结构。
本发明的这种结构可设计出多种负载类型和触点类型的辅助触点，可以采用一组常开辅助触点或常闭辅助触点实现同步监测主触点通断的功能；也可以利用一组常开辅助触点 或常闭辅助触点实现其他电路功能，比如节能功能等；还可以分别使用两组辅助触点(一组常开辅助触点和一组常闭辅助触点)来同时实现同步监测主触点通断及其实现电路节能等功能；还可以将辅助引出端中常开的一端和常闭的一端连接在一起，形成转换的辅助触点。
本发明的这种方案，既能够采用塑封结构，以适应于主触点额定负载较低时使用；又能够采用陶瓷结构，将辅助触点和主触点都焊接密封于陶瓷腔体内，以适应于主触点负载较高时使用。
上述只是本发明的较佳实施例，并非对本发明作任何形式上的限制。虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明。任何熟悉本领域的技术人员，在不脱离本发明技术方案范围的情况下，都可利用上述揭示的技术内容对本发明技术方案作出许多可能的变动和修饰，或修改为等同化的等效实施例。因此，凡是未脱离本发明技术方案的内容，依据本发明技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均应落在本发明技术方案保护的范围内。

Claims (11)

  1. 一种带辅助触点的直流接触器，包括推动机构、具有双主动触点的主动簧和两个分别配置有主静触点的主引出端，所述主动簧安装在所述推动机构上，所述推动机构动作带动所述主动触点与所述主静触点接触或分离；其特征在于：所述直流接触器还包括具有双辅助动触点的辅助动簧和至少两分别配置有辅助静触点的辅助引出端，所述辅助动簧安装在所述推动机构上，所述推动机构动作带动所述辅助动触点与所述辅助静触点接触或分离。
  2. 根据权利要求1所述的带辅助触点的直流接触器，其特征在于：所述主动触点与所述主静触点之间设为常开结构，当所述主动触点与主静触点接触时，所述辅助动触点与所述辅助静触点接触或分离。
  3. 根据权利要求2所述的带辅助触点的直流接触器，其特征在于：所述辅助引出端为四个，其中两个所述辅助引出端设为辅助常开引出端，另外两个所述辅助引出端设为辅助常闭引出端，两个所述辅助常开引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
  4. 根据权利要求2所述的带辅助触点的直流接触器，其特征在于：所述辅助引出端为两个，该两个辅助引出端设为辅助常开引出端，两个辅助常开引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
  5. 根据权利要求2所述的带辅助触点的直流接触器，其特征在于：所述辅助引出端为两个，该两个辅助引出端设为辅助常闭引出端，两个辅助常闭引出端分别设置在对应于辅助动簧的辅助动触点的位置处。
  6. 根据权利要求3或4所述的带辅助触点的直流接触器，其特征在于：所述直流接触器还包括罩壳，所述主引出端和辅助常开引出端分别安装在所述罩壳上，使主动触点、主静触点、辅助动触点和辅助静触点都容纳在所述罩壳的腔内。
  7. 根据权利要求6所述的带辅助触点的直流接触器，其特征在于：所述罩壳设有上台阶和下台阶，所述主引出端和辅助常开引出端分别安装在所述上台阶、下台阶处，从而使主动触点与主静触点的配合位置、辅助动触点与辅助静触点的配合位置分别处在邻近所述上台阶的空间和邻近所述下台阶的空间中。
  8. 根据权利要求6所述的带辅助触点的直流接触器，其特征在于：所述罩壳为陶瓷罩壳或塑料罩壳。
  9. 根据权利要求1所述的带辅助触点的直流接触器，其特征在于：所述主动簧和所 述辅助动簧均为一字型结构，且所述主动簧与所述辅助动簧在平面上的投影大致呈垂直状态。
  10. 根据权利要求9所述的带辅助触点的直流接触器，其特征在于：所述推动机构包括推动座、推动杆和U型篮，所述推动座固定在推动杆的一端，U型篮安装在所述推动座上，所述辅助动簧固定在所述推动座上，所述主动簧通过一触点弹簧安装在U型篮内，所述触点弹簧的一端抵于所述主动簧，另一端抵在所述推动座上。
  11. 根据权利要求10所述的带辅助触点的直流接触器，其特征在于：所述辅助动簧为具有弹性的薄片结构，以利用辅助动簧的弹性变形实现辅助触点的超行程。
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