WO2023036062A1 - 可增强灭弧能力的高压直流继电器 - Google Patents

可增强灭弧能力的高压直流继电器 Download PDF

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Publication number
WO2023036062A1
WO2023036062A1 PCT/CN2022/116780 CN2022116780W WO2023036062A1 WO 2023036062 A1 WO2023036062 A1 WO 2023036062A1 CN 2022116780 W CN2022116780 W CN 2022116780W WO 2023036062 A1 WO2023036062 A1 WO 2023036062A1
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Prior art keywords
moving
magnetic
reed
arc extinguishing
contact
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PCT/CN2022/116780
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English (en)
French (fr)
Inventor
代文广
苏礼季
谢丰柱
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厦门宏发电力电器有限公司
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Application filed by 厦门宏发电力电器有限公司 filed Critical 厦门宏发电力电器有限公司
Priority to KR1020247008344A priority Critical patent/KR20240040122A/ko
Priority to JP2024515409A priority patent/JP2024530820A/ja
Priority to EP22866525.3A priority patent/EP4401106A1/en
Publication of WO2023036062A1 publication Critical patent/WO2023036062A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit 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
    • H01H50/36—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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the disclosure relates to the technical field of relays, in particular to a high-voltage direct current relay capable of enhancing arc extinguishing capability.
  • High-voltage DC relay is a relay with the ability to handle high power. It still has the characteristics of reliability and long service life that conventional relays cannot match under harsh conditions such as high voltage and high current. It is widely used in various fields. For example, in the field of new energy vehicles.
  • a high-voltage DC relay in the prior art adopts a moving reed direct-acting structure, and its contact part adopts two static contacts and a moving reed, and the two static contacts are installed on the top of the ceramic cover (or shell) , the bottom ends of the two static contacts (that is, the lead-out ends of the static contacts) extend into the ceramic cover, and the moving reed is distributed in the ceramic cover for direct motion.
  • a static contact works as the bottom end of the static contact.
  • the current flows in from one of the static contacts and passes through the moving reed.
  • the reed flows out from another static contact; the moving reed is installed on one end of the push rod part, and the other end of the push rod part is connected with the moving iron core of the magnetic circuit part.
  • the push rod part When moving upwards, the two ends of the moving reed are in contact with the two static contacts respectively, and the load is turned on. When the coil cuts off the current, the push rod part moves downwards under the action of the return spring, and the two ends of the moving reed contact the two static contacts.
  • This kind of high-voltage DC relay in the prior art usually uses magnets to extinguish the arc.
  • the most typical configuration of magnets is to arrange a magnet on the outside of both ends of the moving reed in the length direction, and use two magnets to realize arc extinguishing. .
  • the double magnet arc extinguishing scheme in the prior art has a better arc blowing direction and meets the requirement of non-polarity, the magnetic field strength is relatively weak, especially the arc starting point (that is, the center of the lead-out end), which appears to be close to the lead-out end.
  • the magnetic induction intensity gradually weakens.
  • the ceramic cavity is larger, so that the magnetic field strength of the arc-extinguishing part reaching the arc-starting point is smaller, and the arc-extinguishing effect is not good, which cannot meet the system load requirements of new energy vehicles and energy storage projects. Raise demand.
  • the purpose of this disclosure is to overcome the deficiencies of the prior art and provide a high-voltage DC relay that can enhance the arc extinguishing ability.
  • the magnetic field strength at the lead-out end can be strengthened, thereby enhancing the arc extinguishing ability of the product and improving the extinguishing ability of the product. arc effect.
  • a high-voltage DC relay capable of enhancing arc extinguishing capability, including two static contact terminals and a moving reed; the moving reed is arranged on two static contacts The bottom of the point lead-out end, and the two ends of the moving reed as the moving contact respectively match with the bottom ends of the two static contact leads as the static contact; the outer sides of the two ends in the length direction of the moving reed correspond to The contact positions of the moving contact and the static contact are respectively equipped with first magnets, and the polar sides of the two first magnets are respectively facing the corresponding moving contacts; The position between the ends, corresponding to the contact position of each movable contact and the static contact, there is also a second magnet steel, the polarized side of the second magnet steel faces the corresponding first magnet steel, and The polarity of the polarized side of the second magnet is opposite to that of the first magnet facing the movable contact.
  • the pole surface of the second magnet is smaller than the pole surface of the first magnet.
  • the moving reed corresponds to the middle position in the height direction of the first magnetic steel.
  • the two second magnetic steels are arranged symmetrically on both sides of the center line in the length direction of the moving reed, respectively.
  • the second magnetic steel is pasted and fixed on the top or bottom of the moving reed.
  • a downwardly or upwardly recessed groove is provided at a position corresponding to the second magnetic steel, and at least a part of the second magnetic steel is embedded in the groove.
  • the two second magnets are two separate parts, and there is a preset distance between the two second magnets.
  • the two second magnetic steels are connected into one body.
  • the high-voltage DC relay also includes two first U-shaped yokes respectively arranged on the two first magnets, and the U-shaped bottom walls of the two first U-shaped yokes are respectively connected to the corresponding first magnets.
  • the side facing away from the corresponding movable contact is in contact, and the U-shaped sidewalls of the two first U-shaped yokes are respectively arranged on two sides of the movable reed in the width direction, and are opposite to the corresponding movable contact.
  • An anti-short circuit structure is also installed at the middle position in the length direction of the moving reed; the anti-short circuit structure is located in a preset distance between the two second magnetic steels.
  • the structure of the present disclosure can enhance the strength of the horizontal magnetic field of the first magnet at the contact position between the movable contact and the static contact by utilizing the specific position of the second magnet, especially at the center of the lead-out end (that is, starting Arc point) magnetic field strength, to speed up the magnetic blowing out arc speed at the moment of arcing.
  • an anti-short-circuit structure is installed in the middle of the length direction of the moving reed; the anti-short-circuit structure is located at a preset distance between the two second magnetic steels.
  • the structure of the present disclosure is equivalent to inserting two small magnets (ie the second magnets) in the middle of the match with the anti-short circuit structure and the two large magnets (ie the first magnets), if there is no small magnets Inserted between the anti-short circuit structure and the large magnet, the magnetic field of the large magnet will affect the anti-short circuit effect of the anti-short circuit structure, and with the small magnet, the small magnet has a magnetic effect on the magnetic field of the large magnet , preventing the magnetic field of the large magnet against the influence of the short-circuit structure.
  • FIG. 1 is a perspective view of a partial structure of Embodiment 1 of a high-voltage DC relay capable of enhancing arc extinguishing capability of the present disclosure
  • Fig. 2 is the front view of Fig. 1;
  • Fig. 3 is the top view of Fig. 1;
  • Fig. 4 is a sectional view along the line A-A in Fig. 3;
  • Fig. 5 is a perspective view of the partial structure of Embodiment 2 of the high-voltage direct current relay that can enhance the arc extinguishing capability of the present disclosure
  • Fig. 6 is the front view of Fig. 5;
  • Figure 7 is a top view of Figure 5;
  • Fig. 8 is a sectional view along the line B-B in Fig. 6;
  • Fig. 9 is a sectional view along the line C-C in Fig. 7;
  • Fig. 10 is a schematic diagram of the interaction between the magnet and the short-circuit ring in Embodiment 2 of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein.
  • relative terms such as “upper” and “lower” are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the drawings Directions for the example described. It will be appreciated that if the illustrated device is turned over so that it is upside down, then elements described as being “upper” will become elements that are “lower”.
  • Other relative terms, such as “top” and “bottom” also have similar meanings.
  • When a structure is "on” another structure it may mean that a structure is integrally formed on another structure, or that a structure is “directly” placed on another structure, or that a structure is “indirectly” placed on another structure through another structure. other structures.
  • the high-voltage DC relay with enhanced arc extinguishing capability of the present disclosure includes two static contact outlets 1 and a moving reed 2; the moving reed 2 is arranged on two static contacts point lead-out 1, and the two ends of the moving reed 2 are used as moving contacts to match with the bottom ends of the two static contact lead-outs 1 as static contacts respectively; in the length direction of the moving reed 2
  • the outer sides of the two ends are respectively equipped with first magnets 3 corresponding to the contact positions of the movable contacts and the static contacts, and the polarized sides of the two first magnets 3 are respectively facing the corresponding movable contacts; 2, at the position between the two static contact lead-out ends 1, a second magnetic steel 4 is provided corresponding to the contact position between each movable contact and the static contact, and the second magnetic steel 4 has polarity One side faces the corresponding polarized side of the first magnet 3, and the polarity of the side of the second magnet 4 facing the mov
  • the magnetic polarity of the first magnetic steel 3 facing the moving contact ie, the side facing the right
  • the magnetic polarity of the first magnetic steel 3 facing the moving contact is N Pole, corresponding to the magnetic polarity of the other end (right end) of the first magnetic steel 3 of the movable reed 2 toward the contact point (i.e.
  • the left side is also an N pole, corresponding to an end of the movable reed 2
  • the polarized side (that is, the left side) of the second magnetic steel 4 on the left end) faces the polarized side (that is, the rightward side) of the corresponding first magnetic steel 3, and the second magnetic steel 4
  • the polarity of the left side is opposite to the polarity of the right side of the first magnetic steel 3, and the magnetic polarity of the left side of the second magnetic steel 4 at the left end of the movable reed 2 is S pole;
  • the magnetic polarity of the rightward side of the second magnetic steel 4 at the other end (right end) of the movable reed 2 is S pole.
  • the magnetic force lines of the first magnetic steel 3 diverge to the right, because the S pole of the second magnetic steel 4 is arranged on the right side of the left static contact lead-out end 1, the magnetic force lines of the first magnetic steel 3 are directed to Gathering at the center of the left static contact terminal 1 can enhance the strength of the magnetic field of the first magnetic steel 3 at the contact position between the movable contact and the static contact, especially the magnetic field strength at the center of the terminal (that is, the arcing point) , to speed up the magnetic blow-out arc speed at the moment of arcing.
  • the magnetic lines of force of the first magnetic steel 3 diverge to the left, because there is a second
  • the S pole of the magnetic steel 4 and the magnetic field lines of the first magnetic steel 3 gather toward the center of the right static contact lead-out end 1 .
  • the pole surface of the second magnet 4 is smaller than that of the first magnet 1 , that is, the first magnet 1 is a large magnet, and the second magnet 4 is a small magnet.
  • the moving reed 2 corresponds to a middle position in the height direction of the first magnetic steel 3 .
  • the two second magnetic steels 4 are arranged symmetrically on both sides of the center line in the longitudinal direction of the moving reed 2 .
  • the second magnetic steel 4 is pasted and fixed on the upper surface of the moving reed 2 .
  • the second magnetic steel 4 can also be pasted and fixed on the bottom of the moving reed 2, or under the moving reed, an upwardly concave concave is provided at a position corresponding to the second magnetic steel.
  • the two second magnets 3 are two separate parts, and there is a preset distance between the two second magnets 3 .
  • the high-voltage DC relay further includes two first U-shaped yokes 5 respectively arranged on the two first magnets 3, and the U-shaped bottom walls 51 of the two first U-shaped yokes 5 are respectively In contact with the side of the corresponding first magnetic steel 3 facing away from the corresponding moving contact (in this embodiment, it is the S pole of the first magnetic steel 3), the U-shaped two sides of the two first U-shaped yokes 5
  • the side walls 52 are respectively disposed on both sides of the movable reed 2 in the width direction, and are opposite to the corresponding movable contacts.
  • the position between the two static contact lead-out ends 1 corresponds to the contact position between each moving contact and the static contact.
  • a second magnetic steel 4 is respectively provided, and the polarized side of the second magnetic steel 4 faces the corresponding polarized side of the first magnetic steel 3, and its polarity is the same as that of the first magnetic steel 3 toward the moving direction. The polarity is reversed on one side of the contacts.
  • This structure of the present disclosure can enhance the strength of the horizontal magnetic field of the first magnetic steel 3 at the contact position between the movable contact and the static contact by utilizing the specific position of the second magnetic steel 4 (that is, changing the original magnetic field trend) , in particular, it can enhance the magnetic field strength at the center of the lead-out end (that is, the arcing point), thereby accelerating the magnetic blowout arc speed at the moment of arcing.
  • a high-voltage direct current relay with enhanced arc extinguishing capability of the present disclosure is different from Embodiment 1 in that the middle position of the moving reed 2 in the length direction is also equipped with an anti- Short-circuit structure; the anti-short-circuit structure is in the preset distance between the two second magnetic steels 4 .
  • the anti-short-circuit structure is an anti-short-circuit ring 6, which is formed by matching two inline upper armatures 61 and two U-shaped lower armatures 62; There is a through hole through the thickness of the moving reed 2 in the middle, and the two inline upper armatures 61 are usually fixed on the top of the U-shaped bracket 7 of the push rod part of the relay by riveting or welding, and the two U-shaped lower armatures 62 are respectively fixed on the movable reed 2 by riveting, and the side walls of the two U-shaped lower armatures 62 pass through the through holes of the movable reed 2, and the tops of the two U-shaped lower armatures 62 are exposed on the described movable reed.
  • the upper surface of the moving reed is matched with the two in-line upper armatures 61, and the annular magnetic field generated by the energization of the moving reed is formed in the ring formed by the in-line upper armature 61 and the U-shaped lower armature 62.
  • the magnetic circuit is closed to generate suction to act on the moving reed 2 to achieve the purpose of resisting the electric repulsion.
  • the anti-short circuit ring 6 of this embodiment has two magnetic circuits, the magnetic circuits are not easy to be saturated, the contact pressure increases more, and the magnetic circuits generate greater suction.
  • the second magnetic steel 4 is arranged next to the anti-short circuit ring 6, as shown in Figure 10, there are two sides to the effect of the second magnetic steel 4 on the magnetic field. 10, the left side of the two anti-short circuit rings 6), on the other hand the repulsion of the second magnetic steel 4 has weakened the suction force of the anti-short circuit ring 6 (embodied on the right side of the two anti-short circuit rings 6 in Figure 10).
  • a high-voltage DC relay that can enhance the arc extinguishing capability of the present disclosure is also equipped with an anti-short circuit structure, that is, an anti-short circuit ring 6 at the middle position of the moving reed 2 in the length direction; There is a preset distance between the magnetic steels 4 .
  • a small magnet 4 ie the second magnet
  • the two large magnets 3 ie the first magnet. If there is no small magnet, the large magnet.
  • the magnetic field of the steel will affect the anti-short-circuit effect of the anti-short-circuit structure.
  • the small magnet After the small magnet is installed, the small magnet has a magnetic effect on the magnetic field of the large magnet, preventing the magnetic field of the large magnet from affecting the anti-short-circuit structure.

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  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

一种可增强灭弧能力的高压直流继电器，包括两个静触点引出端和一个动簧片；动簧片配置在两个静触点引出端的下方，且动簧片的两端作为动触点分别与两个静触点引出端的作为静触点的底端对应相配合；在动簧片的长度方向的两端的外侧的对应于动触点与静触点接触位置分别配置有第一磁钢，第一磁钢的具有极性的一面朝向对应的动触点；在动簧片上，在两个静触点引出端之间的位置，对应于每个动触点与静触点接触位置还分别设有一个第二磁钢，且第二磁钢的具有极性的一面朝向所对应的第一磁钢的具有极性的一面，其极性与第一磁钢的朝向动触点的一面的极性相反。本公开能够强化引出端处的磁场强度，从而增强产品的灭弧能力，提高产品的灭弧效果。

Description

可增强灭弧能力的高压直流继电器
交叉引用
本公开要求于2021年9月10日提交的申请号为202122196800.3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，特别是涉及一种可增强灭弧能力的高压直流继电器。
背景技术
高压直流继电器是一种具有处理高功率的能力的继电器，在高压、大电流等苛刻条件下仍具有常规继电器所无法比拟的可靠性及使用寿命长等特点，被广泛应用于各种不同领域，比如应用于新能源汽车领域等。现有技术的一种高压直流继电器是采用动簧片直动式结构，其接触部分采用两个静触头和一个动簧片，两个静触头安装在陶瓷罩(或壳体)的顶部，两个静触头(即静触点引出端)的底端则伸到陶瓷罩内，动簧片为直动式分布在陶瓷罩内，动簧片的两端作为动触点分别与两个静触头作为静触点的底端相配合，当动簧片的两端的动触点与两个静触头底端的静触点相接触时，电流由其中一个静触头流入，经过动簧片后从另一个静触头流出；动簧片安装在推动杆部件的一端，推动杆部件的另一端则与磁路部分的动铁芯相连接，当线圈接入电流而使推动杆部件向上运动时，动簧片两端与两个静触头分别相接触，接通负载，当线圈断开电流时，推动杆部件受复位弹簧的作用向下运动，动簧片两端与两个静触头分别相分离，切断负载。现有技术的这种高压直流继电器通常采用磁钢灭弧，最典型的磁钢配置方案是在动簧片的长度方向的两端外侧分别配置一个磁钢，利用两个磁钢来实现灭弧。现有技术的这种双磁钢灭弧方案虽然吹弧方向较好，也达到无极性的要求，但磁场强度较弱，特别是起弧点(即引出端中心处)，呈现为靠近引出端处磁感应强度逐渐衰弱，对于大 负载产品，陶瓷腔体更大，使灭弧部分到达起弧点的磁场强度更小，灭弧效果不佳，无法满足新能源汽车、储能项目对系统负载的提升需求。
发明内容
本公开的目的在于克服现有技术之不足，提供一种可增强灭弧能力的高压直流继电器，通过结构改进，能够强化引出端处的磁场强度，从而增强产品的灭弧能力，提高产品的灭弧效果。
本公开解决其技术问题所采用的技术方案是：一种可增强灭弧能力的高压直流继电器，包括两个静触点引出端和一个动簧片；所述动簧片配置在两个静触点引出端的下方，且动簧片的两端作为动触点分别与两个静触点引出端的作为静触点的底端对应相配合；在动簧片的长度方向的两端的外侧的对应于动触点与静触点接触位置分别配置有第一磁钢，且两个第一磁钢的具有极性的一面分别朝向对应的动触点；在动簧片上，在两个静触点引出端之间的位置，对应于每个动触点与静触点接触位置还分别设有一个第二磁钢，所述第二磁钢的具有极性的一面朝向对应的第一磁钢，且所述第二磁钢的具有极性的一面的极性与所述第一磁钢的朝向动触点的一面的极性相反。
所述第二磁钢的磁极面小于所述第一磁钢的磁极面。
所述动簧片对应在第一磁钢的高度方向的中间位置。
所述两个第二磁钢分别对称设在所述动簧片的长度方向的中心线的两边。
所述第二磁钢粘贴固定在所述动簧片的上面或下面。
所述动簧片的上面或下面，在对应于所述第二磁钢的位置设有向下或向上凹陷的凹槽，所述第二磁钢的至少一部分嵌置在所述凹槽中。
所述两个第二磁钢为两个单独的零件，两个第二磁钢之间具有预置的间距。
所述两个第二磁钢连接成一体。
所述高压直流继电器还包括分别配置于两个第一磁钢的两个第一U形轭铁，两个第一U形轭铁的U形的底壁分别与相对应的第一磁钢的背向对应的动触点的一面相接触，两个第一U形轭铁的U形的两侧壁分别配置在 动簧片的宽度方向的两边，并与所述对应的动触点相对。
所述动簧片的长度方向的中间位置还装有抗短路结构；所述抗短路结构处在两个第二磁钢之间具有预置的间距中。
与现有技术相比较，本公开的有益效果是：
1、本公开由于在动簧片的上面，在两个静触点引出端之间的位置，对应于每个动触点与静触点接触位置还分别设有一个第二磁钢，且第二磁钢的具有极性的一面朝向所对应的第一磁钢的具有极性的一面，其极性与第一磁钢的朝向动触点的一面的极性相反。本公开的这种结构，利用第二磁钢所处的特定位置，能够增强第一磁钢的水平磁场在动触点与静触点接触位置的强度，特别是增强引出端中心处(即起弧点)的磁场强度，加快起弧瞬间的磁吹灭弧速度。
2、本公开由于在动簧片的长度方向的中间位置还装有抗短路结构；所述抗短路结构处在两个第二磁钢之间具有预置的间距中。本公开的这种结构，相当于在具有抗短路结构和两个大磁钢(即第一磁钢)相配合的中间插入两个小磁钢(即第二磁钢)，如果没有小磁钢插在抗短路结构与大磁钢之间，则大磁钢的磁场就会影响抗短路结构的抗短路效果，而有了小磁钢后，小磁钢对大磁钢的磁场具有吸磁作用，阻止了大磁钢的磁场对抗短路结构的影响。
以下结合附图及实施例对本公开作进一步详细说明；但本公开的一种可增强灭弧能力的高压直流继电器不局限于实施例。
附图说明
通过参照附图详细描述其示例实施方式，本发明的上述和其它特征及优点将变得更加明显。
图1是本公开的可增强灭弧能力的高压直流继电器实施例一的局部构造的立体图；
图2是图1的主视图；
图3是图1的俯视图；
图4是沿图3中的A-A线的剖视图；
图5是本公开的可增强灭弧能力的高压直流继电器实施例二的局部构 造的立体图；
图6是图5的主视图；
图7是图5的俯视图；
图8是沿图6中的B-B线的剖视图；
图9是沿图7中的C-C线的剖视图；
图10是本公开的实施例二中的磁钢与短路环之间的作用示意图。
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。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。其他相对性的用语，例如“顶”、“底”等也作具有类似含义。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。
实施例一
参见图1至图4所示，本公开的可增强灭弧能力的高压直流继电器，包括两个静触点引出端1和一个动簧片2；所述动簧片2配置在两个静触点引出端1的下方，且动簧片2的两端作为动触点分别与两个静触点引出端1的作为静触点的底端对应相配合；在动簧片2的长度方向的两端的外侧的对应于动触点与静触点接触位置分别配置有第一磁钢3，且两个第一磁钢3的具有极性的一面分别朝向对应的动触点；在动簧片2上，在两个静触点引出端1之间的位置，对应于每个动触点与静触点接触位置还分别设有一个第二磁钢4，第二磁钢4的具有极性的一面朝向所对应的第一磁钢3的具有极性的一面，第二磁钢4的朝向动触点的一面的极性与第一磁钢3的朝向动触点的一面的极性相反。
本实施例中，如图3、图4所示，对应于动簧片2的一端(左端)的第一 磁钢3的朝向动触点的一面(即朝右的一面)的磁极性为N极，对应于动簧片2的另一端(右端)的第一磁钢3的朝向触点的一面(即朝左的一面)的磁极性也为N极，对应于动簧片2的一端(左端)的第二磁钢4的具有极性的一面(即朝左的一面)朝向所对应的第一磁钢3的具有极性的一面(即朝右的一面)，第二磁钢4的朝左的一面的极性与第一磁钢3的朝右的一面的极性相反，动簧片2左端的第二磁钢4的朝左的一面的磁极性为S极；同理，对应于动簧片2的另一端(右端)的第二磁钢4的朝右的一面的磁极性为S极。对于动簧片2的左端来说，第一磁钢3的磁力线向右发散，由于左边静触点引出端1的右侧有第二磁钢4的S极，第一磁钢3的磁力线向左边静触点引出端1的中心处聚集，能够增强第一磁钢3的磁场在动触点与静触点接触位置的强度，特别是增强引出端中心处(即起弧点)的磁场强度，加快起弧瞬间的磁吹灭弧速度，同样的，对于动簧片2的右端来说，第一磁钢3的磁力线向左发散，由于右边静触点引出端1的左侧有第二磁钢4的S极，第一磁钢3的磁力线向右边静触点引出端1的中心处聚集。
本实施例中，所述第二磁钢4的磁极面小于所述第一磁钢1的磁极面，即第一磁钢1为大磁钢，第二磁钢4为小磁钢。
本实施例中，所述动簧片2对应在第一磁钢3的高度方向的中间位置。
本实施例中，所述两个第二磁钢4对称设在所述动簧片2的长度方向的中心线的两边。
本实施例中，所述第二磁钢4粘贴固定在所述动簧片2的上面。当然，也可以是在所述动簧片的上面，在对应于所述第二磁钢的位置设有向下凹陷的凹槽，将第二磁钢的底部的一部分嵌置在所述凹槽中。另外，也可以将第二磁钢4粘贴固定在所述动簧片2的下面，或者是在所述动簧片的下面，在对应于所述第二磁钢的位置设有向上凹陷的凹槽，将第二磁钢的顶部的一部分嵌置在所述凹槽中。
本实施例中，所述两个第二磁钢3为两个单独的零件，两个第二磁钢3之间具有预置的间距。
本实施例中，所述高压直流继电器还包括分别配置于两个第一磁钢3的两个第一U形轭铁5，两个第一U形轭铁5的U形的底壁51分别与相对应的第一磁钢3的背向对应的动触点的一面相接触(本实施例为第一磁钢3的S 极)，两个第一U形轭铁5的U形的两侧壁52分别配置在动簧片2的宽度方向的两边，并与对应的动触点相对。
本公开的一种可增强灭弧能力的高压直流继电器，在动簧片2上，在两个静触点引出端1之间的位置，对应于每个动触点与静触点接触位置还分别设有一个第二磁钢4，且第二磁钢4的具有极性的一面朝向所对应的第一磁钢3的具有极性的一面，其极性与第一磁钢3的朝向动触点的一面的极性相反。本公开的这种结构，利用第二磁钢4所处的特定位置，能够增强第一磁钢3的水平磁场在动触点与静触点接触位置的强度(即改变了原来的磁场走向)，特别是能增强引出端中心处(即起弧点)的磁场强度，从而加快起弧瞬间的磁吹灭弧速度。
实施例二
参见图5至图10所示，本公开的一种可增强灭弧能力的高压直流继电器，与实施例一的不同之处在于，所述动簧片2的长度方向的中间位置还装有抗短路结构；所述抗短路结构处在两个第二磁钢4之间预置的间距中。
本实施例中，抗短路结构为抗短路环6，抗短路环6是由两个一字型上衔铁61和两个U型下衔铁62相配合所形成；在动簧片2的长度方向的中间设有贯穿动簧片2的厚度的通孔，两个一字型上衔铁61通常是以铆接或焊接方式固定于继电器的推动杆部件的U型支架7的顶部，两个U型下衔铁62则以铆接方式分别固定于所述动簧片2，且两个U型下衔铁62的侧壁穿过动簧片2的通孔，两个U型下衔铁62的顶端均露于所述动簧片的上表面，与两个一字型上衔铁61对应相配合，利用动簧片通电产生的环形磁场，在一字型上衔铁61与U型下衔铁62所形成的环形件中形成封闭磁回路，产生吸力作用于动簧片2，达到抵抗电动斥力的目的。本实施例的抗短路环6有两个磁回路，磁路不易饱和，触点压力增加更大，磁回路产生的吸力更大。
本实施例中，由于抗短路环6的旁边有第二磁钢4，如图10所示，第二磁钢4对磁场的作用存在两面性，一方面增强抗短路环6的吸力(体现在图10中的两个抗短路环6的左边)，另一方面第二磁钢4的斥力削弱了抗短路环6的吸力(体现在图10中的两个抗短路环6的右边)。
本公开的一种可增强灭弧能力的高压直流继电器，在动簧片2的长度方 向的中间位置还装有抗短路结构即抗短路环6；所述抗短路环6处在两个第二磁钢4之间具有预置的间距中。本公开的这种结构，在抗短路结构6和两个大磁钢3(即第一磁钢)的中间插入小磁钢4(即第二磁钢)，如果没有小磁钢，则大磁钢的磁场就会影响抗短路结构的抗短路效果，而设置了小磁钢后，小磁钢对大磁钢的磁场具有吸磁作用，阻止了大磁钢的磁场对抗短路结构产生影响。
应可理解的是，本发明不将其应用限制到本说明书提出的部件的详细结构和布置方式。本发明能够具有其他实施方式，并且能够以多种方式实现并且执行。前述变形形式和修改形式落在本发明的范围内。应可理解的是，本说明书公开和限定的本发明延伸到文中和/或附图中提到或明显的两个或两个以上单独特征的所有可替代组合。所有这些不同的组合构成本发明的多个可替代方面。本说明书所述的实施方式说明了已知用于实现本发明的最佳方式，并且将使本领域技术人员能够利用本发明。

Claims (12)

  1. 一种可增强灭弧能力的高压直流继电器，包括两个静触点引出端和一个动簧片；所述动簧片配置在两个静触点引出端的下方，且动簧片的两端作为动触点分别与两个静触点引出端的作为静触点的底端对应相配合；在动簧片的长度方向的两端的外侧的对应于所述动触点与所述静触点接触位置分别置有配第一磁钢，且两个第一磁钢的具有极性的一面分别朝向对应的所述动触点与所述静触点接触位置；其特征在于：在所述动簧片上，在两个所述静触点引出端之间的位置，对应于每个所述动触点与所述静触点接触位置还分别设有一个第二磁钢，所述第二磁钢的具有极性的一面朝向对应的第一磁钢，且所述第二磁钢的具有极性的一面的极性与所述第一磁钢的朝向所述动触点与所述静触点接触位置的一面的极性相反。
  2. 根据权利要求1所述的可增强灭弧能力的高压直流继电器，其特征在于：所述第二磁钢的磁极面小于所述第一磁钢的磁极面。
  3. 根据权利要求2所述的可增强灭弧能力的高压直流继电器，其特征在于：所述动簧片对应在所述第一磁钢的高度方向的中间位置。
  4. 根据权利要求1或2或3所述的可增强灭弧能力的高压直流继电器，其特征在于：两个所述第二磁钢分别对称设在所述动簧片的长度方向的中心线的两边。
  5. 根据权利要求4所述的可增强灭弧能力的高压直流继电器，其特征在于：所述第二磁钢粘贴固定在所述动簧片的上面或下面。
  6. 根据权利要求4所述的可增强灭弧能力的高压直流继电器，其特征在于：所述动簧片的上面或下面设有向下或向上凹陷的凹槽，所述第二磁钢的至少一部分嵌置在所述凹槽中。
  7. 根据权利要求4所述的可增强灭弧能力的高压直流继电器，其特征在于：两个所述第二磁钢为两个单独的零件，两个所述第二磁钢之间具有预置的间距。
  8. 根据权利要求4所述的可增强灭弧能力的高压直流继电器，其特征在 于：两个所述第二磁钢连接成一体。
  9. 根据权利要求1所述的可增强灭弧能力的高压直流继电器，其特征在于：所述高压直流继电器还包括分别配置于两个第一磁钢的两个第一U形轭铁，所述两个第一U形轭铁的U形的底壁分别与相对应的第一磁钢的背向对应的动触点的一面相接触，两个第一U形轭铁的U形的两侧壁分别配置在所述动簧片的宽度方向的两边，并与对应的所述动触点相对。
  10. 根据权利要求7所述的可增强灭弧能力的高压直流继电器，其特征在于：所述动簧片的长度方向的中间位置还装有抗短路结构；所述抗短路结构处在两个第二磁钢之间的预置的间距中。
  11. 根据权利要求10所述的可增强灭弧能力的高压直流继电器，其特征在于：所述抗短路结构为抗短路环。
  12. 根据权利要求11所述的可增强灭弧能力的高压直流继电器，其特征在于：所述抗短路环由两个一字型上衔铁和两个U型下衔铁相配合所形成；在所述动簧片的长度方向的中间设有贯穿所述动簧片的厚度的通孔，两个所述上衔铁固定于所述高压直流继电器的推动杆部件的U型支架的顶部，两个所述U型下衔铁分别固定于所述动簧片，且两个所述U型下衔铁的侧壁穿过所述动簧片的通孔，两个所述U型下衔铁的顶端均露于所述动簧片的上表面，与两个所述一字型上衔铁对应配合，利用所述动簧片通电产生的环形磁场，在所述一字型上衔铁与所述U型下衔铁所形成的环形件中形成封闭磁回路。
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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN216120109U (zh) * 2021-09-10 2022-03-22 厦门宏发电力电器有限公司 一种可增强灭弧能力的高压直流继电器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835502A (en) * 1988-09-13 1989-05-30 Potter & Brumfield, Inc. Secure magnet blowout mounting for relays
CN102129935A (zh) * 2011-03-10 2011-07-20 二一三电器深圳有限公司 无极性直流接触器灭弧系统
CN109559939A (zh) * 2018-11-09 2019-04-02 厦门宏发电力电器有限公司 一种抗短路电流的直流继电器
CN109659198A (zh) * 2018-12-28 2019-04-19 厦门宏发电力电器有限公司 一种灭弧及抗短路电流的直流继电器
CN210467675U (zh) * 2019-10-28 2020-05-05 昆山联滔电子有限公司 一种直流灭弧装置及直流继电器
CN113178359A (zh) * 2021-02-26 2021-07-27 厦门宏发电力电器有限公司 一种带磁钢灭弧的高压直流继电器
CN113808884A (zh) * 2021-07-16 2021-12-17 厦门宏发电力电器有限公司 一种可纵向拉弧的高压直流继电器
CN216120109U (zh) * 2021-09-10 2022-03-22 厦门宏发电力电器有限公司 一种可增强灭弧能力的高压直流继电器
CN216435800U (zh) * 2021-10-26 2022-05-03 厦门宏发电力电器有限公司 一种带抗短路结构的高压直流继电器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835502A (en) * 1988-09-13 1989-05-30 Potter & Brumfield, Inc. Secure magnet blowout mounting for relays
CN102129935A (zh) * 2011-03-10 2011-07-20 二一三电器深圳有限公司 无极性直流接触器灭弧系统
CN109559939A (zh) * 2018-11-09 2019-04-02 厦门宏发电力电器有限公司 一种抗短路电流的直流继电器
CN109659198A (zh) * 2018-12-28 2019-04-19 厦门宏发电力电器有限公司 一种灭弧及抗短路电流的直流继电器
CN210467675U (zh) * 2019-10-28 2020-05-05 昆山联滔电子有限公司 一种直流灭弧装置及直流继电器
CN113178359A (zh) * 2021-02-26 2021-07-27 厦门宏发电力电器有限公司 一种带磁钢灭弧的高压直流继电器
CN113808884A (zh) * 2021-07-16 2021-12-17 厦门宏发电力电器有限公司 一种可纵向拉弧的高压直流继电器
CN216120109U (zh) * 2021-09-10 2022-03-22 厦门宏发电力电器有限公司 一种可增强灭弧能力的高压直流继电器
CN216435800U (zh) * 2021-10-26 2022-05-03 厦门宏发电力电器有限公司 一种带抗短路结构的高压直流继电器

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