WO2024146660A1 - 一种高耐压的电磁继电器 - Google Patents

一种高耐压的电磁继电器 Download PDF

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Publication number
WO2024146660A1
WO2024146660A1 PCT/CN2024/080135 CN2024080135W WO2024146660A1 WO 2024146660 A1 WO2024146660 A1 WO 2024146660A1 CN 2024080135 W CN2024080135 W CN 2024080135W WO 2024146660 A1 WO2024146660 A1 WO 2024146660A1
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WIPO (PCT)
Prior art keywords
armature
welding
iron core
spring
spring part
Prior art date
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PCT/CN2024/080135
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English (en)
French (fr)
Inventor
汪志坤
林佳宾
董欣赏
Original Assignee
厦门宏发信号电子有限公司
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Application filed by 厦门宏发信号电子有限公司 filed Critical 厦门宏发信号电子有限公司
Publication of WO2024146660A1 publication Critical patent/WO2024146660A1/zh

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Classifications

    • 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
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • 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

  • this small relay includes a base part and a movable spring armature component, the middle part of the movable spring armature component is installed on the top of the base part through a welding plate structure, and the movable spring armature component includes a movable spring part, an armature, a magnet, and a plastic body that integrates the movable spring part, the armature, and the magnet into an integral part by injection molding.
  • the magnet and the movable spring part are respectively located under the armature, and the movable spring part includes two movable spring plates arranged in parallel and a conductive plate.
  • the conductive plate and the two movable spring plates are integrally formed so that the two movable spring plates are connected in series, so that the relay can achieve voltage division through two groups of contacts inside, and the high-voltage breaking capacity of the contacts is improved while maintaining the volume unchanged.
  • the contacts are disconnected, in the circuit, the two groups of contacts are still disconnected, thereby improving the withstand voltage between the contacts.
  • the conductive plate will be placed on the normally closed side of the movable spring armature component, which results in a longer conductive path of the entire movable spring part and a larger contact resistance.
  • a high-voltage electromagnetic relay including a base part and a movable spring armature component
  • the base part includes a base, and a coil, an iron core and at least one static
  • the movable spring armature component comprises at least one movable spring part, an armature, a magnetic steel, and a plastic body which integrates the movable spring part, the armature and the magnetic steel into an integral part by injection molding, the magnetic steel is located under the armature, a welding piece structure is provided in the middle part of the movable spring armature component, the movable spring armature component is installed on the top of the base part through the welding piece structure, and the two ends of the armature exposed outside the plastic body respectively correspond to the pole surfaces at the two ends of the iron core;
  • the static spring part cooperates with the movable spring part
  • the movable spring part comprises two movable spring leaves and a conductive piece, and the two movable spring leaves are respectively integrally formed
  • the conductive sheet and the solder sheet structure are independent of each other, and there is a gap between the conductive sheet and the solder sheet structure, and the gap is filled with a portion of plastic of the plastic body.
  • the static spring part includes two static spring sheets, which are respectively located below the two moving spring sheets, and the static contacts arranged on the two static spring sheets respectively correspond to the moving contacts arranged on the two moving spring sheets one by one; the setting heights of the two static spring sheets are respectively higher than the heights of the pole surfaces of the iron core; and the base is provided with a retaining wall between the static spring sheets and the iron core.
  • the number of the movable spring part and the static spring part is one respectively, and they constitute a normally open contact assembly or a normally closed contact assembly;
  • the armature has a first end close to the movable spring part and a second end away from the movable spring part; the contact area between the first end of the armature and one end of the iron core is greater than the contact area between the second end of the armature and the other end of the iron core.
  • the bottom of the second end of the armature is flattened at both ends in the width direction, so that only the middle area of the bottom of the second end of the armature contacts the other end of the iron core.
  • the second end of the armature is shortened so that the size of the contact surface between the first end of the armature and one end of the iron core in a preset direction is larger than the size of the contact surface of the second end of the armature in a preset direction, and the preset direction is the length direction of the armature.
  • the welding piece structure is located above the armature, and the welding piece structure includes two welding pieces and a connecting piece, the two welding pieces are located above the middle of the armature on both sides in the width direction, the connecting piece spans the armature, and is integrally formed with the two welding pieces; two welding platforms are provided on the top of the base, and the two welding pieces are respectively welded to the two welding platforms one by one.
  • the conductive sheet is completely wrapped in the plastic body, and the base integrates the coil, the iron core, the static spring part, and the coil lead-out terminal into a whole by injection molding.
  • the present invention has the following beneficial effects:
  • the conductive sheet of the movable spring part does not need to avoid the magnetic steel below the armature, and thus the conductive sheet can be arranged as close to the two movable spring sheets as possible.
  • the conductive sheet and the two movable spring sheets are located on the same side of the welding sheet structure, so that the conductive path of the entire movable spring part is greatly shortened, thereby achieving the purpose of greatly reducing the contact resistance.
  • the conductive sheet and the welding sheet structure are independent of each other, so that after the welding sheet structure is fixed, it has no effect on the movement of the moving spring sheet, and the current on the moving spring sheet will not be conducted to the welding sheet structure, and will not affect the reaction force structure of the relay.
  • the armature is provided with a groove below the conductive sheet, so that the distance between the armature and the conductive sheet is larger and the insulation effect is better.
  • the gap formed between the groove and the conductive sheet is filled with a part of the plastic of the plastic body, which can ensure the insulation performance between the movable spring part and the armature.
  • the heights of the two static springs are higher than the height of the core pole surface, which can ensure the insulation performance between the static springs and the core.
  • the base is provided with a retaining wall between the static springs and the core, which can further improve the insulation performance between the static springs and the core.
  • the contact surface area between the first end of the armature and one end of the iron core is smaller than the contact surface area between the second end of the armature and the other end of the iron core, which can reduce the magnetic force of the armature away from the second end of the movable spring part, thereby facilitating the attraction of the armature close to the first end of the movable spring part.
  • the welding piece structure includes the two welding pieces and a connecting piece.
  • the connecting piece is integrally formed with the two welding pieces, so that the connecting piece and the two welding pieces are formed by processing the same sheet material, which can ensure that the flatness and height of the two welding pieces are consistent, thereby ensuring the accuracy of the installation of the movable spring armature component.
  • FIG1 is a schematic diagram of the three-dimensional structure of an electromagnetic relay according to a first embodiment of the present disclosure (excluding a housing).
  • FIG. 2 is a schematic diagram of the three-dimensional structure of the movable spring armature component of the first embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of the positional relationship between the movable spring portion and the welding piece structure of the first embodiment of the present disclosure.
  • FIG4 is a schematic diagram of the structure of the movable spring part and the static spring part in the disconnected state according to the first embodiment of the present disclosure.
  • FIG5 is a schematic structural diagram of the movable spring part and the static spring part in the contact state according to the first embodiment of the present disclosure.
  • FIG. 6 is a partial cross-sectional view of the movable spring armature component of the first embodiment of the present disclosure.
  • FIG. 7 is a top view of the movable spring armature component of the first embodiment of the present disclosure (excluding the plastic body).
  • FIG8 is a schematic diagram of the three-dimensional structure of the armature (including magnetic steel) according to the first embodiment of the present disclosure.
  • FIG. 9 is a front view of the movable spring armature component of the first embodiment of the present disclosure (excluding the plastic body).
  • FIG. 10 is a schematic structural diagram of a base and some components of the first embodiment of the present disclosure.
  • FIG. 11 is a bottom view of the armature according to the first embodiment of the present disclosure.
  • a high-voltage electromagnetic relay disclosed in the present invention includes a base part and a movable spring armature component.
  • the base part includes a base 1, and a coil, an iron core 2 and at least one static spring part arranged on the base 1.
  • the base 1 integrates the coil, the iron core 2, the static spring part and the coil lead-out terminal 9 into a whole by injection molding, and the two end pole surfaces of the iron core 2 are respectively exposed upward and located at the two ends of the base 1.
  • the movable spring armature component includes at least one movable spring part 5, an armature 4, a magnetic steel 8, and a plastic body 6 that integrates the movable spring part 5, the armature 4 and the magnetic steel 8 into a whole by injection molding.
  • the magnetic steel 8 is located under the armature 4.
  • a welding piece structure 7 is provided in the middle part of the movable spring armature component.
  • the movable spring armature component is installed on the top of the base part through the welding piece structure 7, and the two ends of the armature 4 exposed outside the plastic body 6 correspond to the pole surfaces at the two ends of the iron core 2.
  • the static spring part and the dynamic spring part 5 are matched one by one, and the dynamic spring part 5 includes two dynamic spring pieces 51 arranged in parallel and a conductive piece 52 located between the two dynamic spring pieces 51.
  • the conductive piece 52 is integrally formed with the two dynamic spring pieces 51, but it is not limited thereto.
  • the conductive piece and the two dynamic spring pieces are welded or riveted.
  • the movable spring portion 5 is located above the armature 4, and the two movable spring pieces 51 are respectively located above the two sides of the armature 4 in the width direction Y.
  • the conductive piece 52 spans the armature 4, and in the vertical direction Z, the conductive piece 52 and the two movable spring pieces 51 are located on the same side of the welding piece structure 7.
  • the bottom of the two movable spring pieces 51 at one end away from the welding piece structure 7 is respectively provided with a movable contact 53, and the other end of the two movable spring pieces 51 close to the welding piece structure 7 is respectively formed integrally with the conductive piece 52.
  • the conductive sheet 52 and the welding sheet structure 7 are independent of each other, so that after the welding sheet structure 7 is fixed, it has no effect on the movement of the moving spring sheet 51, and the current on the moving spring sheet 51 will not be conducted to the welding sheet structure 7, and will not affect the reaction force structure of the relay.
  • the conductive sheet 52 is completely wrapped in the plastic body 6, and there is a gap 10 between the conductive sheet 52 and the welding sheet structure 7, and the gap 10 is filled with a part of the plastic of the plastic body 6. In this way, the insulation performance between the moving spring part 5 and the welding sheet structure 7 can be ensured.
  • the welding piece structure 7 is located above the armature 4, and the welding piece structure 7 includes two welding pieces 71 and a connecting piece 72.
  • the two welding pieces 71 are located above the middle of the armature 4 on both sides in the width direction Y, and the connecting piece 72 spans the armature 4 and is formed integrally with the two welding pieces 71.
  • the connecting piece 72 and the two welding pieces 71 are formed by processing the same sheet material, which can ensure that the flatness and height of the two welding pieces 71 are consistent, thereby ensuring the accuracy of the installation of the movable spring armature component.
  • the two welding pieces 71 adopt an integrated structure to improve the rigidity of the welding pieces to a certain extent.
  • two welding platforms 11 are provided on the top of the base 1, and the two welding pieces 71 are respectively welded and fixed to the two welding platforms 11 one by one.
  • the two welding pieces 71 can be welded to the welding platform 11 by laser welding or resistance welding.
  • the welding piece structure 7 is inserted into the plastic body 6. After the welding piece structure 7 is welded to the welding platform 11, the movable spring armature component can be installed on the top of the base portion.
  • the present disclosure arranges the welding piece structure 7 above the armature 4 to avoid occupying the magnetic steel placement space below the armature 4.
  • the middle part of the connecting piece 72 adopts a hollow design, which can reduce weight and save materials, and is conducive to the stress release of the connecting piece 72, so that the connecting piece 72 is not easily deformed by the influence of thermal expansion and contraction.
  • the armature 4 is provided with a groove 41 at the position below the conductive sheet 52, so that the distance between the armature 4 and the conductive sheet 52 is larger and the insulation effect is better.
  • the gap formed between the groove 41 and the conductive sheet 52 is filled with a part of the plastic of the plastic body 6, which can ensure the insulation performance between the movable spring part 5 and the armature 4.
  • the groove 41 is provided with openings at both ends in the width direction of the armature 4, that is, the groove 41 is open to the outside at both ends in the width direction Y of the armature 4, forming an open shape.
  • the groove 41 is a through groove, which is through in the width direction Y. In this way, it can be ensured that the armature 4 has a large distance from the conductive sheet 52 at the position where the groove 41 is located.
  • the static spring portion includes two static spring pieces 3, which are respectively located at
  • the base 1 is provided with a retaining wall 12 between the static spring piece 3 and the iron core 2, and the static contacts 31 provided on the two static spring pieces 3 respectively correspond to the dynamic contacts 53 provided on the two dynamic spring pieces 51.
  • the setting heights of the two static spring pieces 3 are respectively higher than the heights of the pole faces of the iron core 2, which can ensure the insulation performance between the static spring piece 3 and the iron core 2.
  • the base 1 is provided with a retaining wall 12 between the static spring piece 3 and the iron core 2, which can also further improve the insulation performance between the static spring piece 3 and the iron core 2.
  • the number of the movable spring part 5 and the static spring part are respectively one, and they constitute a normally open contact assembly. Therefore, the present disclosure constitutes a normally open relay, as shown in FIG10 , whose base part has only four lead terminals (including two coil lead terminals 9 and two static spring lead terminals 32), and there is a large isolation between the four lead terminals, so that there is a large creepage distance and air gap between the coil and the contact.
  • the magnetic steel 8 is arranged below the armature 4.
  • the magnetic steel 8 can generate a magnetic field to magnetize the armature 4 and the iron core 2, so that the armature 4 and the iron core 2 are attracted by an attraction force, which can be called the magnetic steel force between the armature 4 and the iron core 2.
  • the armature 4 has a first end 401 close to the movable spring part 5 and a second end 402 away from the movable spring part 5.
  • the two ends of the armature 4 in the length direction X constitute the first end 401 and the second end 402 respectively.
  • the movable spring portion 5 and the static spring portion constitute a normally closed contact assembly.

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Abstract

一种高耐压的电磁继电器，包括底座部分和动簧衔铁部件，底座部分包括底座，以及设置于该底座的线圈、铁芯和至少一静簧部分；动簧衔铁部件包括至少一动簧部分、衔铁、磁钢和塑料体，塑料体将动簧部分、衔铁、磁钢集合成一个整体件，所述动簧衔铁部件的中间部位设有焊片结构，动簧衔铁部件通过焊片结构安装于底座部分的顶部，且衔铁露在塑料体外的两端分别与铁芯两端的极面对应配合；所述静簧部分与动簧部分相配合，所述动簧部分包括两动簧片和导电片，两动簧片分别与导电片一体成型或电性连接；所述动簧部分位于衔铁上方，且两动簧片分别位于衔铁在宽度方向上的两侧上方，导电片横跨所述衔铁，且导电片与所述两动簧片位于所述焊片结构的同一侧。

Description

一种高耐压的电磁继电器
交叉引用
本公开要求于2023年1月6日提交的申请号为202310017862.4、名称为“一种高耐压的电磁继电器”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
本公开涉及继电器技术领域，特别是涉及一种高耐压的电磁继电器。
背景技术
随着新能源行业的快速发展，高压直流的应用也越来越普及且要求也越来越高，对于继电器的要求也越来越严格。小型化高耐压规格的继电器越来越受市场青睐，但传统的小型化继电器受到体积的影响故而耐压能力有限。因而，用户会在外部电路中将两路触点串联来使用，以此提高断开触点间的耐压能力，如此会造成繁琐的电路设计。为此，相关技术出现了一种高耐压的常开型小型继电器，该继电器内部的触点串联，用户无需在外部板子上做串联处理。具体，这种小型继电器包括底座部分和动簧衔铁部件，动簧衔铁部件的中部通过焊片结构安装在底座部分的顶部，且动簧衔铁部件包括动簧部分、衔铁、磁钢，以及通过注塑方式将动簧部分、衔铁、磁钢集合成一个整体件的塑料体，磁钢和动簧部分分别位于衔铁之下，且动簧部分包括并列排布的两动簧片和一导电片，导电片与两动簧片一体成型，使两动簧片串联在一起，从而使继电器内部通过两组触点实现分压，在维持体积不变的情况下提高了触点的高压分断能力，当触点断开时，在电路中，仍然是两组触点断开，从而提高了触点间的耐压能力。然而，为了使衔铁下方有足够的磁钢放置空间，在这种小型继电器中，会将导电片放置在动簧衔铁部件的常闭侧，这就造成整个动簧部分的导电路径较长，接触电阻较大。
发明内容
本公开针对相关技术存在的技术问题，提供了一种高耐压的电磁继电器，其对动簧部分的结构进行改进，达到减小接触电阻的目的。
本公开解决其技术问题所采用的技术方案是：一种高耐压的电磁继电器，包括底座部分和动簧衔铁部件，所述底座部分包括底座，以及设置于该底座的线圈、铁芯和至少一静 簧部分，所述铁芯的两端极面分别向上露出；所述动簧衔铁部件包括至少一动簧部分、衔铁、磁钢，以及通过注塑方式将动簧部分、衔铁、磁钢集合成一个整体件的塑料体，磁钢位于衔铁之下，所述动簧衔铁部件的中间部位设有焊片结构，动簧衔铁部件通过焊片结构安装于底座部分的顶部，且衔铁露在塑料体外的两端分别与铁芯两端的极面对应配合；所述静簧部分与动簧部分相配合，所述动簧部分包括两动簧片和导电片，两动簧片分别与导电片一体成型或电性连接；所述动簧部分位于衔铁上方，且两动簧片分别位于衔铁在宽度方向上的两侧上方，导电片横跨所述衔铁，且导电片与所述两动簧片位于所述焊片结构的同一侧。
在一些实施例中，所述导电片与所述焊片结构相互独立，且所述导电片与所述焊片结构之间具有空隙，该空隙被所述塑料体的一部分塑料填充。
在一些实施例中，所述衔铁在所述导电片下方的部位设有凹槽，该凹槽在所述衔铁宽度方向上的两端分别设有开口，所述凹槽与所述导电片之间形成的空隙由所述塑料体的一部分塑料填充。
在一些实施例中，所述静簧部分包括两静簧片，两静簧片分别位于所述两动簧片下方，且两静簧片上设置的静触点分别与所述两动簧片上设置的动触点一一对应配合；所述两静簧片的设置高度分别高于所述铁芯极面的高度；所述底座在所述静簧片与铁芯之间设有挡墙。
在一些实施例中，所述动簧部分和静簧部分的数量分别为一个，并构成常开型触点组件或常闭型触点组件；所述衔铁具有靠近所述动簧部分的第一端和远离所述动簧部分的第二端；所述衔铁的第一端与所述铁芯一端的接触面的面积大于所述衔铁的第二端与所述铁芯另一端的接触面的面积。
在一些实施例中，所述衔铁的第二端底部局部打扁。
在一些实施例中，所述衔铁的第二端底部在宽度方向上的两头分别打扁，使所述衔铁的第二端底部仅中间区域与所述铁芯另一端接触。
在一些实施例中，所述衔铁的第二端做短，使所述衔铁的第一端与所述铁芯一端的接触面在预设方向上的尺寸大于所述衔铁的第二端的接触面在预设方向上的尺寸，所述预设方向为所述衔铁的长度方向。
在一些实施例中，所述焊片结构位于所述衔铁上方，且所述焊片结构包括两焊片和一连接片，两焊片位于所述衔铁中部在宽度方向上的两侧上方，连接片横跨所述衔铁，并与两焊片一体成型；所述底座的顶部设有两焊台，所述两焊片分别与所述两焊台一一焊接固 定。
在一些实施例中，所述导电片被完全包裹于所述塑料体中，所述底座通过注塑将所述线圈、铁芯、静簧部分，以及线圈引出端子集合成一个整体。
相较于相关技术，本公开具有以下有益效果：
1、由于本公开将所述动簧部分设在衔铁上方，使得动簧部分的导电片无需避让衔铁下方的磁钢，因而导电片可以尽可能靠近两动簧片设置，具体，导电片与所述两动簧片位于所述焊片结构的同一侧，使得整个动簧部分的导电路径大大缩短，从而达到大大减小接触电阻的目的。
2、所述导电片与所述焊片结构相互独立，使得焊片结构固定后，对动簧片的动作没有影响，并且动簧片上的电流不会传导到焊片结构上，不会影响继电器的反力结构。特别的，所述导电片与所述焊片结构之间具有空隙，该空隙被所述塑料体的一部分塑料填充，能够确保动簧部分与焊片结构之间的绝缘性能。
3、所述衔铁在所述导电片下方的部位设有凹槽，使得衔铁与导电片之间的间距更大，绝缘效果更佳。特别的，所述凹槽与所述导电片之间形成的空隙由所述塑料体的一部分塑料填充，能够确保动簧部分与衔铁之间的绝缘性能。
4、所述两静簧片的设置高度分别高于所述铁芯极面的高度，能够确保静簧片与铁芯之间的绝缘性能。所述底座在所述静簧片与铁芯之间设有挡墙，也能进一步提高静簧片与铁芯之间的绝缘性能。
5、所述衔铁的第一端与所述铁芯一端的接触面的面积小于所述衔铁的第二端与所述铁芯另一端的接触面的面积，能够减小衔铁远离所述动簧部分的第二端的磁钢力，从而便于衔铁靠近所述动簧部分的第一端的吸合。
6、所述焊片结构包括所述两焊片和一连接片，连接片与两焊片一体成型，使得连接片和两焊片采用同一片材加工形成，能确保两焊片的平整度和高度一致，从而确保动簧衔铁部件安装的精确度。
以下结合附图及实施例对本公开作进一步详细说明；但本公开的一种高耐压的电磁继电器不局限于实施例。
附图说明
图1是本公开实施例一的电磁继电器的立体构造示意图(不含外壳)。
图2是本公开实施例一的动簧衔铁部件的立体构造示意图。
图3是本公开实施例一的动簧部分与焊片结构的位置关系示意图。
图4是本公开实施例一的动簧部分与静簧部分在断开状态的结构示意图。
图5是本公开实施例一的动簧部分与静簧部分在接触状态的结构示意图。
图6是本公开实施例一的动簧衔铁部件的局部剖视图。
图7是本公开实施例一的动簧衔铁部件的俯视图(不含塑料体)。
图8是本公开实施例一的衔铁的立体构造示意图(含磁钢)。
图9是本公开实施例一的动簧衔铁部件的主视图(不含塑料体)。
图10是本公开实施例一的底座及部分构件的结构示意图。
图11是本公开实施例一的衔铁的仰视图。
图12是本公开实施例一的衔铁的右视图。
图13是本公开实施例二的衔铁与铁芯在配合状态的主视图(含磁钢)。
附图标记说明：1、底座，11、焊台，12、挡墙，2、铁芯，3、静簧片，31、静触点，32、静簧引出端子，4、衔铁，41、凹槽，42、中间区域，401、第一端；402、第二端；5、动簧部分，51、动簧片，52、导电片，53、动触点，6、塑料体，7、焊片结构，71、焊片，72、连接片，8、磁钢，9、线圈引出端子；10、空隙；X、长度方向；Y、宽度方向；Z、竖直方向。
具体实施方式
实施例一
请参见图1-图12，本公开的一种高耐压的电磁继电器，包括底座部分和动簧衔铁部件，所述底座部分包括底座1，以及设置于该底座1的线圈、铁芯2和至少一静簧部分。具体，所述底座1通过注塑将所述线圈、铁芯2、静簧部分以及线圈引出端子9集合成一个整体，所述铁芯2的两端极面分别向上露出，并位于底座1的两端处。所述动簧衔铁部件包括至少一动簧部分5、衔铁4、磁钢8，以及通过注塑方式将动簧部分5、衔铁4、磁钢8集合成一个整体件的塑料体6，如图9所示，磁钢8位于衔铁4之下，所述动簧衔铁部件的中间部位设有焊片结构7，动簧衔铁部件通过焊片结构7安装于底座部分的顶部，且衔铁4露在塑料体6外的两端分别与铁芯2两端的极面对应配合。如图4和图5所示，所述静簧部分与动簧部分5一一对应配合，且所述动簧部分5包括并列排布的两动簧片51和位于该两动簧片51之间的导电片52，导电片52与两动簧片51一体成型，但不局限于此，在其它实施例中，导电片与两动簧片采用焊接或铆接等方式 相电性连接。如图9所示，所述动簧部分5位于衔铁4上方，且两动簧片51分别位于衔铁4在宽度方向Y上的两侧上方，如图6和图7所示，导电片52横跨所述衔铁4，且在竖直方向Z上，导电片52与所述两动簧片51位于所述焊片结构7的同一侧，具体，如图4所示，两动簧片51远离所述焊片结构7的一端的底部分别设有动触点53，两动簧片51靠近所述焊片结构7的另一端分别与所述导电片52一体成型。
本实施例中，如图3所示，所述导电片52与所述焊片结构7相互独立，使得焊片结构7固定后，对动簧片51的动作没有影响，并且动簧片51上的电流不会传导到焊片结构7上，不会影响继电器的反力结构。所述导电片52被完全包裹于所述塑料体6中，并且，所述导电片52与所述焊片结构7之间具有空隙10，该空隙10被所述塑料体6的一部分塑料填充。如此，能够确保动簧部分5与焊片结构7之间的绝缘性能。
本实施例中，如图3、图6、图7所示，所述焊片结构7位于所述衔铁4上方，且所述焊片结构7包括两焊片71和一连接片72，两焊片71位于所述衔铁4中部在宽度方向Y上的两侧上方，连接片72横跨所述衔铁4，并与两焊片71一体成型。如此，使得连接片72和两焊片71采用同一片材加工形成，能确保两焊片71的平整度和高度一致，从而确保动簧衔铁部件安装的精确度。所述两焊片71采用一体式结构一定程度上能够提高焊片的刚性。如图10所示，所述底座1的顶部设有两焊台11，所述两焊片71分别与所述两焊台11一一焊接固定。例如，两焊片71可以通过激光焊或电阻焊焊接至焊台11上，如图2所示，焊片结构7插入塑料体6中，当焊片结构7焊接至焊台11后，能够实现将动簧衔铁部件安装于底座部分的顶部。本公开将焊片结构7设于衔铁4上方，能够避免侵占衔铁4下方的磁钢放置空间。所述连接片72中部采用镂空设计，能够减少重量和节省材料，并且有利于连接片72释放应力，从而令连接片72不易受热胀冷缩的影响造成变形。
本实施例中，如图8、图9所示，所述衔铁4在所述导电片52下方的部位设有凹槽41，使得衔铁4与导电片52之间的间距更大，绝缘效果更佳。所述凹槽41与所述导电片52之间形成的空隙由所述塑料体6的一部分塑料填充，能够确保动簧部分5与衔铁4之间的绝缘性能。所述凹槽41在所述衔铁4的宽度方向上的两端分别设有开口，即所述凹槽41在所述衔铁4的宽度方向Y上的两端分别通向外界，形成开放式，换句话说，凹槽41是通槽，其在宽度方向Y上是贯通的。如此，能够确保衔铁4在凹槽41所在的位置上处处与导电片52具有较大的间距。
本实施例中，如图4所示，所述静簧部分包括两静簧片3，两静簧片3分别位于所 述两动簧片51下方，且两静簧片3上设置的静触点31分别与两动簧片51上设置的动触点53一一对应配合。如图1所示，在竖直方向Z上，所述两静簧片3的设置高度分别高于所述铁芯2极面的高度，能够确保静簧片3与铁芯2之间的绝缘性能。如图10所示，所述底座1在所述静簧片3与铁芯2之间设有挡墙12，也能进一步提高静簧片3与铁芯2之间的绝缘性能。
本实施例中，所述动簧部分5和静簧部分的数量分别为一个，并构成常开型触点组件，因此，本公开构成一种常开型继电器，如图10所示，其底座部分只有四个引出端子(包括两个线圈引出端子9和两个静簧引出端子32)，四个引出端子之间具有较大的隔离度，从而使线圈与触点间具有较大的爬电距离与空气间隙。
本实施例中，如图9所示，磁钢8设于衔铁4的下方，磁钢8能产生磁场磁化衔铁4和铁芯2，使衔铁4与铁芯2之间产生吸合力而吸合，该吸合力可以称为衔铁4和铁芯2之间的磁钢力。如图7所示，所述衔铁4具有靠近所述动簧部分5的第一端401和远离所述动簧部分5的第二端402，衔铁4在长度方向X上的两端部分别构成所述第一端401和第二端402。所述衔铁4的第一端401与所述铁芯2一端的接触面的面积大于所述衔铁4的第二端402与所述铁芯2另一端的接触面的面积。由于本公开的继电器为常开型继电器，因此，所述衔铁4靠近所述动簧部分5的第一端401即为常开侧的一端，所述衔铁4远离所述动簧部分5的第二端402即为常闭侧的一端。如此，相当于衔铁4在常闭侧的一端与铁芯2的接触面积减小，因而，磁感线仅能通过减小的区域面积，使得常闭侧的磁场减弱，进而能够减小衔铁4在常闭侧的磁钢力，改善常开型继电器的力匹配问题，提高衔铁4在常开侧的吸合能力，从而便于动簧衔铁部件在常开侧的吸合。这是因为若衔铁4的两端(第一端401和第二端402)与铁芯2的极面的接触面的面积一致，则衔铁4的两端的磁钢力一致，但由于动簧衔铁部件的常闭侧没有触点，仅常开侧有触点，因而常开侧会多了触点压力(即当静触点31和动触点53吸合时，静触点31对动触点53具有一个反作用力，该反作用力为触点压力)，导致衔铁4的两侧受力不平衡，继电器常开侧的吸合会比较困难。在其它实施例中，所述动簧部分5和静簧部分构成常闭型触点组件。
本实施例中，所述衔铁4远离所述动簧部分5的第二端402的底部局部打扁，以此实现衔铁4的第一端401与所述铁芯2一端的接触面的面积大于所述衔铁4的第二端402与所述铁芯2另一端的接触面的面积。具体，如图11、图12所示，所述衔铁4的第二端402底部在宽度方向Y上的两头分别打扁，使衔铁4远离所述动簧部分5的第二端 402呈中间区域42厚两头较薄的结构，并且，所述衔铁4的第二端402的厚度从中间向在宽度方向Y上的两端的方向渐小。所述中间区域42呈长条状，并沿衔铁4的长度方向X延伸，且中间区域42的四周轮廓呈方形，如图12所示，衔铁4的第二端402的两头底面分别为斜面43，以向中间区域42逐渐过渡。因此，所述衔铁4的第二端402底部仅中间区域42与所述铁芯2另一端接触，从而使衔铁4的第二端402在宽度方向Y上的两头漏磁较大，磁钢8产生的磁场会集中在中间区域42，从而减小磁钢力。如此，也使得衔铁4远离所述动簧部分5的第二端402在宽度方向Y上受力平衡，不会在宽度方向Y上偏向一边。
本公开的一种高耐压的电磁继电器，其两动簧片51通过导电片52一体成型，实现了两组触点串联，且两组触点的断开状态如图4所示，两组触点的闭合状态如图5所示，图5中，箭头示意电流方向。继电器内部通过两组触点分压，在维持体积不变的情况下提高了触点高压分断能力，并且，当触点断开时，电路上同时有两组触点断开，从而提高触点间隙，大大提高了触点间的耐压能力。
本公开的一种高耐压的电磁继电器，其将所述动簧部分5设置在衔铁4上方，使得动簧部分5的导电片52无需避让衔铁4下方的磁钢8，因而导电片52可以尽可能靠近两动簧片51设置。特别的，本公开将导电片52和所述两动簧片51设于所述焊片结构7的同一侧，使得整个动簧部分5的导电路径大大缩短，从而达到大大减小接触电阻的目的。
实施例二
请参见图13所示，本公开的一种高耐压的电磁继电器，其与上述实施例一的区别在于：所述衔铁4的远离所述动簧部分5的第二端402做短，使所述衔铁4靠近所述动簧部分5的第一端401与所述铁芯2一端的接触面在预设方向上的尺寸大于所述衔铁4远离所述动簧部分5的第二端402与所述铁芯2另一端的接触面在预设方向上的尺寸，所述预设方向为所述衔铁4的长度方向X。因此，所述衔铁4远离所述动簧部分5的第二端402与铁芯2另一端的外边缘之间具有一定的水平间距L，而衔铁4靠近动簧部分5的第一端401外边缘与铁芯2一端的外边缘则上下对齐，或者，衔铁4靠近动簧部分5的第一端401外边缘比铁芯2一端的外边缘略凸出。如此，同样能够实现衔铁4靠近所述动簧部分5的第一端401与所述铁芯2一端的接触面的面积小于所述衔铁4远离所述动簧部分5的第二端402与所述铁芯2另一端的接触面的面积，从而减小衔铁4远离所述动簧部分5的第二端402(即常闭侧)的磁钢力，进而便于动簧衔铁部件常开侧的 吸合。
本公开的一种高耐压的电磁继电器，未涉及部分均与相关技术相同或可采用相关技术加以实现。
上述实施例仅用来进一步说明本公开的一种高耐压的电磁继电器，但本公开并不局限于实施例，凡是依据本公开的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均落入本公开技术方案的保护范围内。

Claims (10)

  1. 一种高耐压的电磁继电器，包括底座部分和动簧衔铁部件，所述底座部分包括底座，以及设置于所述底座的线圈、铁芯和至少一静簧部分，所述铁芯的两端极面分别向上露出；所述动簧衔铁部件包括至少一动簧部分、衔铁、磁钢，以及通过注塑方式将所述动簧部分、所述衔铁、所述磁钢集合成一个整体件的塑料体，所述磁钢位于所述衔铁之下，所述动簧衔铁部件的中间部位设有焊片结构，所述动簧衔铁部件通过所述焊片结构安装于所述底座部分的顶部，且所述衔铁露在所述塑料体外的两端分别与所述铁芯两端的极面对应配合；所述静簧部分与所述动簧部分相配合，所述动簧部分包括两动簧片和导电片，所述两动簧片分别与所述导电片一体成型或电性连接；其中，所述动簧部分位于所述衔铁上方，且所述两动簧片分别位于所述衔铁在宽度方向上的两侧上方，所述导电片横跨所述衔铁，且在竖直方向上，所述导电片与所述两动簧片位于所述焊片结构的同一侧。
  2. 根据权利要求1所述的高耐压的电磁继电器，其中，所述导电片与所述焊片结构相互独立，且所述导电片与所述焊片结构之间具有空隙，所述空隙被所述塑料体的一部分塑料填充。
  3. 根据权利要求1所述的高耐压的电磁继电器，其中，所述衔铁在所述导电片下方的部位设有凹槽，所述凹槽在所述衔铁的宽度方向上的两端分别设有开口，所述凹槽与所述导电片之间形成的所述空隙由所述塑料体的一部分塑料填充。
  4. 根据权利要求1所述的高耐压的电磁继电器，其中，所述静簧部分包括两静簧片，两静簧片分别位于所述两动簧片下方，且两静簧片上设置的静触点分别与所述两动簧片上设置的动触点一一对应配合；在竖直方向上，所述两静簧片的设置高度分别高于所述铁芯极面的高度；所述底座在所述静簧片与所述铁芯之间设有挡墙。
  5. 根据权利要求1所述的高耐压的电磁继电器，其中，所述动簧部分和所述静簧部分的数量分别为一个，并构成常开型触点组件或常闭型触点组件；所述衔铁具有靠近所述动簧部分的第一端和远离所述动簧部分的第二端；所述衔铁的第一端与所述铁芯一端的接触面的面积大于所述衔铁的第二端与所述铁芯另一端的接触面的面积。
  6. 根据权利要求5所述的高耐压的电磁继电器，其中，所述衔铁的第二端底部局部打扁。
  7. 根据权利要求6所述的高耐压的电磁继电器，其中，所述衔铁的第二端底部在所述宽度方向上的两头分别打扁，使所述衔铁的第二端底部仅中间区域与所述铁芯另一端接 触。
  8. 根据权利要求5所述的高耐压的电磁继电器，其中，所述衔铁的第二端做短，使所述衔铁的第一端与所述铁芯一端的接触面在预设方向上的尺寸大于所述衔铁的第二端与所述铁芯另一端的接触面在预设方向上的尺寸，所述预设方向为所述衔铁的长度方向。
  9. 根据权利要求1所述的高耐压的电磁继电器，其中，所述焊片结构位于所述衔铁上方，且所述焊片结构包括两焊片和一连接片，所述两焊片位于所述衔铁中部在所述宽度方向上的两侧上方，所述连接片横跨所述衔铁，并与所述两焊片一体成型；所述底座的顶部设有两焊台，所述两焊片分别与所述两焊台一一焊接固定。
  10. 根据权利要求1所述的高耐压的电磁继电器，其中，所述导电片被完全包裹于所述塑料体中，所述底座通过注塑将所述线圈、所述铁芯、所述静簧部分，以及线圈引出端子集合成一个整体。
PCT/CN2024/080135 2023-01-06 2024-03-05 一种高耐压的电磁继电器 WO2024146660A1 (zh)

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JP2002237244A (ja) * 2001-02-08 2002-08-23 Taiko Device:Kk 電磁継電器
CN112863945A (zh) * 2020-12-30 2021-05-28 厦门宏发信号电子有限公司 一种具有高爬电距离的超小型继电器
CN116031107A (zh) * 2023-01-06 2023-04-28 厦门宏发信号电子有限公司 一种高耐压的电磁继电器

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Publication number Priority date Publication date Assignee Title
JP2002237244A (ja) * 2001-02-08 2002-08-23 Taiko Device:Kk 電磁継電器
CN112863945A (zh) * 2020-12-30 2021-05-28 厦门宏发信号电子有限公司 一种具有高爬电距离的超小型继电器
CN116031107A (zh) * 2023-01-06 2023-04-28 厦门宏发信号电子有限公司 一种高耐压的电磁继电器

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