WO2024078423A1 - 继电器 - Google Patents

继电器 Download PDF

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Publication number
WO2024078423A1
WO2024078423A1 PCT/CN2023/123428 CN2023123428W WO2024078423A1 WO 2024078423 A1 WO2024078423 A1 WO 2024078423A1 CN 2023123428 W CN2023123428 W CN 2023123428W WO 2024078423 A1 WO2024078423 A1 WO 2024078423A1
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WO
WIPO (PCT)
Prior art keywords
magnetic conductor
hole
wall
limiting
magnetic
Prior art date
Application number
PCT/CN2023/123428
Other languages
English (en)
French (fr)
Inventor
代文广
苏礼季
王萌
傅大鹏
陈松生
Original Assignee
厦门宏发电力电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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
Publication of WO2024078423A1 publication Critical patent/WO2024078423A1/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
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • 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
    • 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
    • H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature

Definitions

  • the embodiments of the present disclosure relate to the technical field of electronic components, and in particular, to a relay.
  • a relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits.
  • a relay is actually an "automatic switch” that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.
  • High-voltage DC relay is a type of relay.
  • an anti-short-circuit ring electromagnetic structure is usually set in the relevant technology. It is further divided into a follower structure and a fixed structure according to the position of the upper yoke.
  • the follower structure refers to the upper yoke being set on the movable component of the relay
  • the fixed structure refers to the upper yoke being set at a fixed position other than the movable component.
  • the fixed anti-short-circuit structure has strong anti-short-circuit capability
  • the anti-short-circuit capability and the breaking capability are negatively correlated, resulting in a weakened breaking capability.
  • the follower anti-short-circuit structure is affected by the holding force of the moving iron core. When the short-circuit current is high, the iron core will disengage, causing the contacts to disconnect. To increase the holding force of the moving iron core, the coil needs to be increased, which is inconsistent with the small volume and lightweight.
  • the embodiment of the present disclosure provides a relay to take into account both short-circuit resistance and ultimate breaking capacity.
  • the relay of the disclosed embodiment includes a contact container, a pair of static contact lead-out terminals, a first magnetizer, and a push rod assembly.
  • the contact container has a contact chamber; a pair of static contact lead-out terminals are connected to the contact container; the first magnetizer is arranged in the contact chamber and fixedly arranged relative to the contact container; the push rod assembly includes a moving spring, a second magnetizer, and a third magnetizer arranged in the contact chamber; the moving spring is used to contact or separate with the pair of static contact lead-out terminals; the second magnetizer and the third magnetizer are both fixedly connected to the moving spring, and along the movement direction of the push rod assembly, the second magnetizer and at least part of the third magnetizer are arranged on two opposite sides of the moving spring, the first magnetizer and the second magnetizer are both located on the side of the moving spring facing the static contact lead-out terminals, and the second magnetizer is arranged between the first magnetizer and the moving spring; the second magnetizer and the third magnetizer are used to form
  • the thickness of the first magnetic conductor is greater than or equal to the thickness of the second magnetic conductor. Spend.
  • the contact container further has a pair of first through holes and a second through hole, wherein the first through hole and the second through hole are both connected to the contact chamber; a pair of static contact lead-out terminals are respectively provided through the pair of first through holes;
  • the relay further includes a connecting member, which is passed through the second through hole and includes a first end and a second end, wherein the first end is connected to the contact container, and the second end is connected to the first magnetic conductor.
  • the contact container comprises:
  • the yoke iron plate has a third through hole, and the push rod assembly is movably disposed through the third through hole;
  • the insulating cover comprises a top wall and a side wall, wherein one end of the side wall is connected to the periphery of the top wall, and the other end of the side wall is connected to the yoke iron plate;
  • first through hole and the second through hole are opened in the top wall, and the first end of the connecting member is connected to the outer wall surface of the top wall.
  • the insulating cover includes a ceramic cover and a frame sheet, the ceramic cover includes the top wall and the side wall, and the other end of the side wall is connected to the yoke plate through the frame sheet;
  • a first metallization layer is provided at the periphery of the first through hole, and a second metallization layer is provided at the periphery of the second through hole;
  • the static contact lead-out terminal is welded to the top wall through the first metallization layer, and the first end of the connector is welded to the top wall through the second metallization layer.
  • the top wall and the side wall are an integral structure; or, the top wall and the side wall are a separate structure.
  • the first magnetic conductor is spaced apart from the inner wall surface of the top wall.
  • the second end of the connector is riveted, welded or glued to the first magnetic conductor.
  • the first magnetic conductor includes a plurality of stacked magnetic conductive sheets, and the plurality of magnetic conductive sheets are connected to the second end of the connector.
  • the contact container comprises:
  • the yoke iron plate has a third through hole, and the push rod assembly is movably disposed through the third through hole;
  • the relay further includes a fixing frame, which is disposed in the contact chamber and fixedly connected to the yoke plate, and the first magnetic conductor is fixedly connected to the fixing frame.
  • the push rod assembly further includes:
  • an elastic member one end of which abuts against the base, and the other end of which abuts against a movable member composed of the movable spring piece, the second magnetic conductor and the third magnetic conductor, the elastic member providing elastic force so that the movable spring piece has a tendency to move toward the static contact lead-out end;
  • the limiting structure comprises a matching limiting hole and a limiting portion, the limiting hole comprises a first hole wall and a second hole wall which are arranged opposite to each other along the moving direction of the movable spring piece, and the limiting portion is movably arranged between the first hole wall and the second hole wall of the limiting hole;
  • the limiting portion is located at the first hole wall of the limiting hole.
  • a size of the second hole wall is larger than a size of the first hole wall.
  • the limiting portion has a first arcuate surface, and the first arcuate surface is used to achieve limiting with the limiting hole when the limiting portion is located on the first hole wall of the limiting hole.
  • the limiting portion is a rivet, and the rivet is riveted to the third magnetic conductor.
  • the movable component also includes a fixing member, which is fixedly connected to the third magnetic conductor, and one of the fixing member and the base has the limiting portion, and the other of the fixing member and the base is provided with the limiting hole.
  • the second magnetic conductor and the third magnetic conductor can form a first magnetic circuit, and the first magnetic conductor and the third magnetic conductor can form a second magnetic circuit.
  • the relay of the embodiment of the present disclosure can improve the short-circuit resistance while meeting the limit disconnection requirements.
  • FIG. 1 is a perspective schematic diagram of a relay according to an embodiment of the present disclosure.
  • Fig. 2 is a cross-sectional view along the A-A plane in Fig. 1.
  • FIG. 3 is a schematic diagram showing a first magnetic conductive loop formed by the second magnetic conductive body and the third magnetic conductive body.
  • FIG. 4 is a schematic diagram showing that the second magnetic conductor and the third magnetic conductor form a first magnetic conductor loop, and the first magnetic conductor and the third magnetic conductor form a second magnetic conductor loop.
  • FIG. 5 is an exploded schematic diagram showing the static contact lead-out terminal, the ceramic cover, the connecting piece and the first magnetic conductor in FIG. 1 .
  • FIG. 6 shows a cross-sectional view along the axis of the connecting member in FIG. 5 .
  • FIG. 7 is a schematic diagram showing a push rod assembly according to the first embodiment of the present disclosure.
  • FIG. 8 is an exploded schematic diagram of FIG. 7 .
  • FIG. 9 is a partial enlarged view of the X portion in FIG. 7 .
  • FIG10 is a cross-sectional view along the B-B plane in FIG7.
  • FIG. 11 is an exploded schematic diagram showing a push rod assembly according to a second embodiment of the present disclosure.
  • FIG. 12 is an exploded schematic diagram showing a push rod assembly according to a third embodiment of the present disclosure.
  • FIG. 13 is an exploded schematic diagram showing a push rod assembly according to a fourth embodiment of the present disclosure.
  • FIG. 14 is an exploded schematic diagram showing a push rod assembly according to a fifth embodiment of the present disclosure.
  • FIG. 15 is an exploded schematic diagram showing a push rod assembly according to a sixth embodiment of the present disclosure.
  • FIG. 16 is a schematic diagram showing a first magnetic conductor fixedly connected to a fixing frame.
  • the reference numerals are described as follows: 10. contact container; 101. contact chamber; 102. first through hole; 103. second through hole; 11a. insulation cover; 11. Ceramic cover; 111. Top wall; 112. Side wall; 113. First metallization layer; 114. Second metallization layer; 12. Frame; 13. Yoke iron plate; 131. Third through hole; 20. Static contact lead-out terminal; 30. Connector; 31. First end of connector; 32. Second end of connector; 40. First magnetic conductor; 41. Magnetic conductor; 411. Opening; 50. Push rod assembly; 51. Rod; 52. Base; 521. Base; 522. First stopper; 523. Second stopper; 524. Second arc surface; 53. Movable member; 54. Moving spring; 55.
  • Third magnetic conductor 551. Bottom; 552. First A side portion; 553, a second side portion; 56, an elastic member; 57, a limiting structure; 571, a limiting portion; 571a, a first arc-shaped surface; 572, a limiting hole; 573, a first hole wall of the limiting hole; 574, a second hole wall of the limiting hole; 577, a first inclined wall; 578, a second inclined wall; 579, a rivet; 58, a fixing member; 591, a second magnetic conductor; 592, a coil frame; 593, a coil; 594, a static iron core; 595, a moving iron core; 596, a reset member; 60, a driving assembly; 70, a fixing frame; ⁇ 1, a first magnetic conductive circuit; ⁇ 2, a second magnetic conductive circuit; D1, a movement direction; D2, a length direction; D3, a width direction.
  • Figure 1 shows a three-dimensional schematic diagram of a relay according to an embodiment of the present disclosure.
  • Figure 2 shows a cross-sectional view along the A-A plane in Figure 1.
  • the relay according to the embodiment of the present disclosure includes a contact container 10, a pair of static contact lead terminals 20, a first magnetic conductor 40, a push rod assembly 50 and a drive assembly 60.
  • the contact container 10 includes a yoke iron plate 13 and an insulating cover 11a, wherein the insulating cover 11a is disposed on one side of the yoke iron plate 13 to form a contact chamber 101 of the contact container 10.
  • a pair of static contact lead terminals 20 are connected to the contact container 10, and one end of each static contact lead terminal 20 extends into the contact chamber 101.
  • the push rod assembly 50 includes a movable spring 54, and both ends of the movable spring 54 can contact or separate with the pair of static contact lead terminals 20.
  • the driving assembly 60 is connected to the push rod assembly 50 and is used to drive the moving reed 54 to move so as to close the contacts.
  • the drive assembly 60 includes a coil frame 592, a coil 593, a static iron core 594 and a moving iron core 595.
  • the coil frame 592 is in the shape of a hollow cylinder and is formed of an insulating material.
  • the coil 593 surrounds the coil frame 592.
  • the static iron core 594 is fixedly arranged relative to the coil frame 592.
  • the moving iron core 595 is connected to the push rod assembly 50 and is arranged opposite to the static iron core 594. When the coil 593 is energized, the moving iron core 595 can be attracted by the static iron core 594, thereby driving the push rod assembly 50 to move, so that the moving spring 54 contacts a pair of static contact lead-out terminals 20.
  • the driving assembly 60 further includes a reset member 596, which is disposed between the static iron core 594 and the movable iron core 595, and is used to drive the movable iron core 595 to reset when the coil 593 is powered off.
  • the reset member 596 can be a spring, but is not limited thereto.
  • the first magnetic conductor 40 is disposed in the contact chamber 101 and fixed relative to the contact container 10 .
  • the push rod assembly 50 includes a movable spring 54, a second magnet 591 and a third magnet 55 arranged in the contact chamber 101.
  • the second magnet 591 and the third magnet 55 are both fixedly connected to the movable spring 54, and the second magnet 591 and the third magnet 55 move with the movable spring 54.
  • the second magnet 591 and at least part of the third magnet 55 are arranged on two opposite sides of the movable spring 54.
  • the first magnet 40 and the second magnet 591 are both located on the side of the movable spring 54 facing the static contact lead-out end 20.
  • the second magnet 591 is arranged between the first magnet 40 and the movable spring 54.
  • the first magnetic conductor 40, the second magnetic conductor 591, the movable spring 54 and the third magnetic conductor 55 are sequentially arranged from top to bottom in the contact container 10. That is, the first magnetic conductor 40 and the second magnetic conductor 591 are located on one side of the movable spring 54, and the third magnetic conductor 55 is located on the opposite side of the movable spring 54.
  • FIG3 shows a schematic diagram of the second magnet 591 and the third magnet 55 forming the first magnetic circuit ⁇ 1.
  • the magnetic flux generated in the first magnetic circuit ⁇ 1 is less. Since the second magnet 591 is closer to the third magnet 55 than the first magnet 40, most of the magnetic flux will be between the second magnet 591 and the third magnet 55 (as shown by the arrow in FIG3 ). In this way, the first magnet 40 generates almost no suction force, and the second magnet 591 and the third magnet 55 are fixed on the movable spring 54, so the suction force between the second magnet 591 and the third magnet 55 is an internal force, which will not exert force on the movable spring 54. Therefore, below the limit breaking current, the movable spring 54 will not be affected by the additional holding force to affect normal breaking.
  • FIG. 4 shows a schematic diagram of the second magnetizer 591 and the third magnetizer 55 forming a first magnetic circuit ⁇ 1, and the first magnetizer 40 and the third magnetizer 55 forming a second magnetic circuit ⁇ 2.
  • the current passing through the movable spring 54 gradually increases and exceeds the limit breaking current, the magnetic flux generated is relatively large, so that the second magnetizer 591 reaches magnetic saturation, and the remaining magnetic flux will flow to the first magnetizer 40.
  • a double magnetic circuit is formed, that is, the second magnetizer 591 and the third magnetizer 55 form a first magnetic circuit ⁇ 1, and the first magnetizer 40 and the third magnetizer 55 form a second magnetic circuit ⁇ 2.
  • the second magnetic conductor 591 plays two roles: first, the second magnetic conductor 591 shares a part of the magnetic flux, which can reduce the attraction of the first magnetic conductor 40 to the third magnetic conductor 55.
  • the magnets 55 are all fixedly connected to the moving spring 54, so the attraction between the second magnet 591 and the third magnet 55 is an internal force. Therefore, the second magnet 591 can reduce the attraction of the first magnet 40 on the third magnet 55, which is conducive to achieving limit disconnection.
  • the magnetic field directions of the first magnet 40 and the second magnet 591 are in the same direction (both to the right as shown in Figure 4), so that a mutually repulsive force is generated between the first magnet 40 and the second magnet 591.
  • the first magnet 40 is fixedly arranged relative to the contact container 10, and the second magnet 591, the third magnet 55 and the moving spring 54 are fixedly connected to each other, it is equivalent to the first magnet 40 applying a repulsive force to the second magnet 591, and this repulsive force is also conducive to achieving limit disconnection.
  • the second magnetic conductor 591 and the third magnetic conductor 55 can form a first magnetic circuit ⁇ 1, and the first magnetic conductor 40 and the third magnetic conductor 55 can form a second magnetic circuit ⁇ 2.
  • the relay of the embodiment of the present disclosure can improve the short-circuit resistance while meeting the limit disconnection requirements.
  • the repulsive force exerted by the first magnet 40 on the second magnet 591 is equivalent to directly acting on the movable spring 54, so that the movable spring 54 can be disconnected from the static contact lead-out terminal 20 in time, avoiding contact adhesion.
  • first magnetic conductor 40, the second magnetic conductor 591 and the third magnetic conductor 55 can all be made of materials such as iron, cobalt, nickel, and alloys thereof.
  • the first magnetic conductor 40 and the second magnetic conductor 591 may both be in a straight line shape, and the third magnetic conductor 55 may be in a U shape, but the present invention is not limited thereto.
  • the thickness of the first magnetizer 40 (the dimension along the moving direction D1 of the movable spring 54) is greater than or equal to the thickness of the second magnetizer 591.
  • the thickness of the first magnetizer 40 can also be less than the thickness of the second magnetizer 591.
  • Figure 5 shows an exploded schematic diagram of the static contact lead-out terminal 20, the ceramic cover 11, the connector 30 and the first magnetic conductor 40 in Figure 1.
  • Figure 6 shows a cross-sectional view along the axis of the connector 30 in Figure 5.
  • the first magnetic conductor 40 is fixedly connected to the contact container 10.
  • the contact container 10 also has a pair of first through holes 102 and a second through hole 103, and the first through hole 102 and the second through hole 103 are both connected to the contact chamber 101.
  • a pair of static contact lead-out terminals 20 are respectively arranged in a pair of first through holes 102.
  • the relay also includes a connector 30, which is arranged in the second through hole 103 and includes a first end 31 and a second end 32, the first end 31 is connected to the contact container 10, and the second end 32 is connected to the first magnetic conductor 40.
  • the contact container 10 is provided with a second through hole 103, and the connecting member 30 is passed through the second through hole 103, so that the connecting member 30 is connected to the contact container 10, and the first magnetic conductor 40 is connected to the connecting member 30.
  • the first magnetic conductor 40 is connected to the contact container 10 through the connecting member 30, but not directly connected to the contact container 10, so that the connection process is unobstructed and visualized, which is convenient for operation and ensures the reliability of the connection.
  • the insulating cover 11a includes a ceramic cover 11 and a frame sheet 12.
  • the ceramic cover 11 is connected to the frame sheet 12 through the ceramic cover 11.
  • the frame sheet 12 can be a metal piece with an annular structure, such as an iron-nickel alloy, and one end of the frame sheet 12 is connected to the opening edge of the ceramic cover 11, for example, by laser welding, brazing, resistance welding, gluing, etc.
  • the other end of the frame sheet 12 is connected to the yoke iron plate 13, also by laser welding, brazing, resistance welding, gluing, etc.
  • a frame sheet 12 is arranged between the ceramic cover 11 and the yoke iron plate 13, which can facilitate the connection between the ceramic cover 11 and the yoke iron plate 13.
  • the ceramic cover 11 includes a top wall 111 and a side wall 112, one end of the side wall 112 is connected to the outer periphery of the top wall 111, and the other end of the side wall 112 is connected to the yoke plate 13 through the frame sheet 12.
  • the first through hole 102 and the second through hole 103 are both opened in the top wall 111, and the first end 31 of the connector 30 is connected to the outer wall surface of the top wall 111.
  • one of the pair of static contact lead-out terminals 20 is used as a terminal for current inflow, and the other is used as a terminal for current outflow.
  • the static contact lead-out terminal 20 is inserted into the first through hole 102, and part of the static contact lead-out terminal 20 extends into the contact chamber 101 for contacting or separating with the moving spring 54. Part of the static contact lead-out terminal 20 is exposed on the outer wall surface of the ceramic cover 11.
  • the bottom of the static contact lead-out terminal 20 is used as a static contact, and the two ends of the moving spring 54 along its length direction D2 can be used as moving contacts.
  • the moving contacts at both ends of the moving spring 54 can protrude from other parts of the moving spring 54, or can be flush with other parts.
  • the stationary contact can be integrally or separately disposed at the bottom of the stationary contact lead-out terminal 20, and the moving contact can be integrally or separately disposed at both ends of the moving spring piece 54 along the length direction D2 thereof.
  • the second through hole 103 may be disposed between the two first through holes 102 , that is, the connecting member 30 is disposed between a pair of static contact lead-out terminals 20 .
  • the number of the connecting members 30 may be one or more. In this embodiment, the number of the connecting members 30 is two, but not limited thereto.
  • a first metallization layer 113 is provided at the periphery of the first through hole 102
  • a second metallization layer 114 is provided at the periphery of the second through hole 103.
  • the static contact lead-out terminal 20 is welded to the top wall 111 through the first metallization layer 113
  • the first end 31 of the connector 30 is welded to the top wall 111 through the second metallization layer 114.
  • the outer wall surface of the top wall 111 of the ceramic cover 11 is easier to form a welding plane.
  • a metallization layer also needs to be provided on the periphery of the first through hole 102, so when processing the first metallization layer 113 of the first through hole 102, the second metallization layer 114 of the second through hole 103 is processed at the same time.
  • the metallization layer can be processed only on the outer wall surface of the top wall 111, without processing the metallization layer on the inner wall surface of the top wall 111, which is convenient for processing and simplifies the processing steps.
  • the first magnetic conductor 40 is spaced apart from the inner wall surface of the top wall 111 , so that the length of the connecting piece 30 is greater than the sum of the thickness of the top wall 111 and the thickness of the first magnetic conductor 40 , so that the first magnetic conductor 40 is suspended on the top wall 111 of the ceramic cover 11 through the connecting piece 30 .
  • the first magnetic conductor 40 is spaced apart from the inner wall surface of the top wall 111, so that there is a gap between the first magnetic conductor 40 and the inner wall surface of the top wall 111. Since the first magnetic conductor 40 does not directly contact the inner wall surface of the top wall 111, The provision of the first magnetic conductor 40 does not affect the creepage distance of the pair of static contact lead-out terminals 20 .
  • the first magnetic conductor 40 includes a plurality of stacked magnetic conductive sheets 41, which are connected to the second end 32 of the connector 30.
  • Each magnetic conductive sheet 41 has an opening 411, and the connector 30 is inserted through the opening 411 and riveted to the magnetic conductive sheet 41.
  • the opening 411 of the bottom magnetic conductive sheet 41 can also be a blind hole, while the openings 411 of the remaining magnetic conductive sheets 41 are through holes.
  • the connecting member 30 is inserted through each opening 411 of the remaining magnetic conductive sheets 41, and the second end of the connecting member 30 extends into the blind hole of the bottom magnetic conductive sheet 41 and is welded to the magnetic conductive sheet 41.
  • the first magnetic conductor 40 is a single piece, the first magnetic conductor 40 is provided with an opening 411, which can be a through hole or a blind hole.
  • the opening 411 is a through hole, the connector 30 passes through the opening 411 and is riveted to the first magnetic conductor 40.
  • solder can be provided in the blind hole, and the second end 32 of the connector 30 extends into the blind hole and is welded to the first magnetic conductor 40.
  • the thickness of the first magnetizer 40 needs to be increased to generate a greater magnetic attraction, thereby ensuring that the magnetic attraction between the first magnetizer 40 and the second magnetizer 591 can overcome the repulsion generated by the short-circuit current and prevent the movable spring 54 from bouncing off the static contact lead-out terminal 20.
  • the first magnetizer 40 with a larger thickness has a high cost and is more difficult to connect to the ceramic cover 11.
  • the first magnetic conductor 40 since the first magnetic conductor 40 is connected to the contact container 10 through the connecting member 30, the first magnetic conductor 40 may include multiple stacked magnetic conductors 41, and the second through holes 103 of the multiple magnetic conductors 41 are penetrated by the connecting member 30 for connection, and the overall thickness of the first magnetic conductor 40 is increased by increasing the number of thinner magnetic conductors 41.
  • the magnetic conductors 41 are thin and can be made of thin strips, so the material cost is low and easy to operate.
  • the number of magnetic conductors 41 can be flexibly adjusted according to the size of the short-circuit current.
  • the second magnetic conductor 591 and the third magnetic conductor 55 may also include a plurality of stacked magnetic conductors, or the third magnetic conductor 55 may include a plurality of U-shaped magnetic conductors arranged side by side.
  • the top wall 111 and the side wall 112 of the ceramic cover 11 may be a split structure, which may be connected by welding. It is understandable that by designing the ceramic cover 11 as a split structure of the top wall 111 and the side wall 112, it is more convenient to connect the connector 30 to the top wall 111. Of course, the top wall 111 and the side wall 112 may also be connected together by bonding.
  • the sheet structure makes it easier to process the first through hole 102, the second through hole 103, the first metallization layer 113 and the second metallization layer 114 on the top wall 111. Furthermore, the sheet structure also makes it easier to weld the connector 30 and the top wall 111, and the static contact lead-out terminal 20 and the top wall 111.
  • top wall 111 and the side wall 112 of the ceramic cover 11 may also be an integral structure.
  • the second end 32 of the connecting member 30 is connected to the first magnetic conductor 40 by riveting.
  • the second end 32 of the connecting member 30 is connected to the first magnetic conductor 40 by riveting.
  • FIG. 7 shows a schematic diagram of a push rod assembly 50 according to a first embodiment of the present disclosure.
  • FIG. 9 is a partial enlarged view of the X portion in FIG. 7 .
  • FIG. 10 is a cross-sectional view along the BB plane in FIG. 7 .
  • the push rod assembly 50 also includes a rod portion 51, a base 52, an elastic member 56 and a limiting structure 57.
  • the rod portion 51 is movably arranged in the third through hole 131 of the yoke iron plate 13 (see Figure 2).
  • One end of the rod portion 51 is connected to the base 52, and the other end of the rod portion 51 is used to connect with the moving iron core 595 of the relay (see Figure 2).
  • One end of the elastic member 56 abuts against the base 52, and the other end of the elastic member 56 abuts against the movable member 53 composed of the moving spring 54, the second magnetic conductor 591 and the third magnetic conductor 55.
  • the elastic member 56 provides elastic force so that the moving spring 54 has a tendency to move toward the static contact lead-out terminal 20.
  • the elastic member 56 can be a spring, but is not limited thereto.
  • the limiting structure 57 is connected to the base 52 and the movable member 53, and is used to limit the moving range of the movable member 53 relative to the base 52.
  • the limiting structure 57 includes a matching limiting hole 572 and a limiting portion 571.
  • the limiting hole 572 includes a first hole wall 573 and a second hole wall 574 that are relatively arranged along the moving direction D1 of the movable spring 54.
  • the size of the second hole wall 574 (the length along the length D2 direction of the movable spring 54) is greater than the size of the first hole wall 573.
  • the limiting portion 571 is movably arranged between the first hole wall 573 and the second hole wall 574 of the limiting hole 572. When the movable spring 54 is separated from the static contact lead-out terminal 20, the limiting portion 571 is located at the first hole wall 573 of the limiting hole 572.
  • the base 52 is directly connected to the movable member 53 through the limiting structure 57, so that the assembly between the base 52 and the movable member 53 is simpler.
  • the other components are prevented from interfering with the first magnetic conductor 40 during the overtravel process.
  • the limiting hole 572 can be a through hole or a blind hole.
  • the limiting portion 571 When the movable spring piece 54 is not in contact with the static contact lead-out terminal 20, under the action of the elastic member 56, the limiting portion 571 abuts against the first hole wall 573 of the limiting hole 572. When the movable spring piece 54 is in contact with the static contact lead-out terminal 20 and completes the overtravel process, the limiting portion 571 moves from the first hole wall 573 of the limiting hole 572 to the second hole wall 574. Since the size of the second hole wall 574 of the limiting hole 572 is larger than the size of the first hole wall 573, the limiting hole 572 presents a "one end is large and the other end is small" structure.
  • the gap between the limiting portion 571 and the hole wall of the limiting hole 572 becomes larger, which can prevent the limiting portion 571 from rubbing and jamming with the hole wall of the limiting hole 572 during the movement of the movable spring piece 54 relative to the base 52.
  • the size of the first hole wall 573 of the limiting hole 572 is relatively small, and does not affect the limiting cooperation between the limiting portion 571 and the limiting hole 572 in the initial state, thereby preventing the movable spring piece 54 from shaking relative to the base 52.
  • the size of the first hole wall 573 of the limiting hole 572 should be compatible with the shape of the limiting portion 571, so that when the limiting portion 571 is located at the first hole wall 573 of the limiting hole 572, the limiting portion 571 can achieve limiting with the hole wall of the limiting hole 572.
  • the size of the limiting hole 572 gradually increases from the first hole wall 573 to the second hole wall 574 of the limiting hole 572.
  • the gap between the limiting portion 571 and the hole wall of the limiting hole 572 gradually increases.
  • the limiting hole 572 has a first hole wall 573 and a second hole wall 574 that are arranged horizontally opposite to each other.
  • the first slanted wall 577 and the second slanted wall 578 are provided, one end of the first slanted wall 577 and the second slanted wall 578 are connected to the two ends of the first hole wall 573 , and the other end of the first slanted wall 577 and the second slanted wall 578 are connected to the two ends of the second hole wall 574 .
  • the shape of the limiting hole 572 is roughly an isosceles trapezoid, but is not limited thereto.
  • the shape of the limiting hole 572 can also be a common trapezoid, that is, the slopes of the first inclined wall 577 and the second inclined wall 578 are not equal.
  • the shape of the limiting hole 572 can also be a triangle, preferably, the triangle can be an isosceles triangle.
  • the size of the limiting hole 572 may not be gradually increased along the direction from the first hole wall 573 to the second hole wall 574 of the limiting hole 572.
  • the hole wall of the limiting hole 572 may also include a constant diameter section and an expanded diameter section.
  • the hole wall of the limiting hole 572 may include an expanded diameter section, a constant diameter section, an expanded diameter section, a constant diameter section, etc. in sequence.
  • the limiting portion 571 has a first arcuate surface 571 a , which is used to limit the limiting portion 571 with the first inclined wall 577 and the second inclined wall 578 of the limiting hole 572 when the limiting portion 571 is located at the first hole wall 573 of the limiting hole 572 .
  • the outer side wall of the limiting portion 571 is designed to include a first arc surface 571a, so that the first arc surface 571a and the first inclined wall 577 and the second inclined wall 578 of the limiting hole 572 are in line contact, and the line contact reduces the friction between the limiting portion 571 and the hole wall of the limiting hole 572.
  • the limiting portion 571 and the limiting hole 572 move relative to each other, it is not easy to get stuck.
  • the base 52 is provided with a limiting hole 572, and the movable member 53 includes a limiting portion 571.
  • the limiting hole 572 can also be provided on the movable member 53, and the limiting portion 571 can be provided on the base 52.
  • the base 52 is provided with a limiting hole 572
  • the third magnetic conductor 55 is provided with a limiting portion 571.
  • the third magnetic conductor 55 includes a bottom 551, a first side portion 552, and a second side portion 553.
  • the first side portion 552 and the second side portion 553 are respectively connected to both ends of the bottom 551 along the width direction D3 of the movable spring piece 54.
  • the first side portion 552 and the second side portion 553 are respectively arranged at two opposite sides of the width direction D3 of the movable spring piece 54.
  • the first side portion 552 and the second side portion 553 are both provided with a limiting portion 571.
  • movement direction D1 , the length direction D2 , and the width direction D3 are perpendicular to each other.
  • the base 52 includes a base 521 and a first limit member 522 and a second limit member 523 connected to the base 521 and arranged opposite to each other.
  • the first side portion 552 is arranged corresponding to the first limit member 522
  • the second side portion 553 is arranged corresponding to the second limit member 523.
  • the first limit member 522 and the second limit member 523 both have limit holes 572.
  • a side surface of the first limiting member 522 facing the first side portion 552 and a side surface of the second limiting member 523 facing the second side portion 553 include a second arc surface 524 .
  • the side surface of the first stopper 522 facing the first side portion 552 and the side surface of the second stopper 523 facing the second side portion 553 are designed to include the second arc surface 524, so that the two second arc surfaces 524 are in line contact with the first side portion 552 and the second side portion 553 respectively, and the line contact reduces the friction between the first side portion 552 and the first stopper 522 and the second side portion 553 and the second stopper 523.
  • the first side portion 552 and the second side portion 553 are located between the first limiting member 522 and the second limiting member 523.
  • a limiting portion 571 is protruded from one side of the first side portion 552 away from the second side portion 553 and one side of the second side portion 553 away from the first side portion 552.
  • the limiting portion 571 can be formed by punching the side of the first side portion 552/the second side portion 553, so that the limiting portion 571 forms a punching structure.
  • the specific position of the punching structure on the first side portion 552/the second side portion 553 can be flexibly adjusted according to the structure.
  • the first side portion 552 and the second side portion 553 can be fully in contact with the first limiting member 522 and the second limiting member 523 respectively, thereby ensuring the stability of the third magnetic conductor 55 and the base 52 when limited, and will not affect the magnetic conductivity efficiency.
  • the limiting portion 571 may be in an elongated shape.
  • the side surface of the elongated limiting portion 571 with a larger area contacts the first hole wall 573 of the limiting hole 572.
  • Figure 11 shows an exploded schematic diagram of a push rod assembly 50 of the second embodiment of the present disclosure.
  • the similarities between the second embodiment and the first embodiment are not repeated here, and the differences are as follows:
  • the limiting portion 571 includes two convex hull structures.
  • the two convex hull structures are arranged at intervals along the length direction D2 of the movable spring piece 54.
  • the design of the double convex hull structure effectively prevents the movable spring piece 54 from swinging relative to the base 52 in the initial state, and reduces the probability of the movable spring piece 54 rebounding or rebounding.
  • Figure 12 shows an exploded schematic diagram of a push rod assembly 50 of the third embodiment of the present disclosure.
  • the similarities between the third embodiment and the first embodiment are not repeated here, and the differences are as follows:
  • the limiting portion 571 is a rivet 579 , and the rivet 579 is riveted to the first side portion 552 / the second side portion 553 of the third magnetic conductor 55 .
  • FIG. 13 a schematic diagram of the push rod assembly 50 of the fourth embodiment of the present disclosure is shown.
  • the similarities between the fourth embodiment and the first embodiment are not repeated here, and the difference is that the limiting portion 571 is disposed on the bottom 551 of the third magnetic conductor 55.
  • the third magnetic conductor 55 includes a bottom 551, a first side portion 552 and a second side portion 553.
  • two opposite side edges of the bottom 551 are convexly provided with a stopper 571.
  • the first side portion 552 and the second side portion 553 are respectively connected to both ends of the bottom 551 along the width direction D3 of the movable spring piece 54.
  • the first side portion 552 and the second side portion 553 are respectively arranged at two opposite side edges of the movable spring piece 54 in the width direction D3.
  • the base 52 includes a base 521 and a first limiting member 522 and a second limiting member 523 connected to the base 521 and arranged opposite to each other.
  • the first limiting member 522 and the second limiting member 523 both define limiting holes 572 .
  • FIG. 14 shows an exploded schematic diagram of a push rod assembly 50 according to a fifth embodiment of the present disclosure.
  • the similarities between the embodiment and the first embodiment are not repeated here, and the differences are as follows:
  • the base 52 includes a base 521 and a first stopper 522 and a second stopper 523 connected to the base 521 and arranged opposite to each other.
  • the first stopper 522 and the second stopper 523 both have a stopper hole 572.
  • the movable member 53 also includes a fixing member 58 fixedly connected to the third magnetic conductor 55.
  • the fixing member 58 has stopper portions 571 on opposite sides thereof.
  • Figure 15 shows an exploded schematic diagram of a push rod assembly 50 of the sixth embodiment of the present disclosure.
  • the similarities between the sixth embodiment and the first embodiment are not repeated here, and the differences are as follows:
  • the limiting portion 571 is protruded from two opposite sides of the base 52 of the push rod assembly 50.
  • the movable member 53 further includes a fixing member 58 fixedly connected to the third magnetic conductor 55, and the fixing member 58 is provided with a limiting hole 572.
  • the fixing member 58 is in an inverted U-shape, and the positions of the first hole wall 573 and the second hole wall 574 of the limiting hole 572 provided on the fixing member 58 are just opposite to those of the limiting hole 572 of the above-mentioned embodiment.
  • the first hole wall 573 of the limiting hole 572 is located at the bottom, while the second hole wall 574 is located at the top, and the size of the second hole wall 574 is larger than the size of the first hole wall 573 .
  • the first hole wall 573 of the limiting hole 572 is located at the upper part, and the second hole wall 574 is located at the lower part.
  • Fig. 16 is a schematic diagram showing that the first magnetic conductor 40 is fixedly connected to the fixing frame 70.
  • the first magnetic conductor 40 can also be fixedly connected to a fixing frame 70.
  • the relay further includes a fixing frame 70, which is disposed in the contact chamber 101 and fixedly connected to the yoke iron plate 13.
  • the first magnetic conductor 40 is fixedly connected to the fixing frame 70.
  • the relative position relationship of the first magnetic conductor 40, the second magnetic conductor 591, the third magnetic conductor 55 and the movable spring 54 can be referred to the above description, and will not be repeated here.
  • the terms “first”, “second” and “third” are only used for descriptive purposes and should not be understood as indicating or implying relative importance; the terms “a pair” and “one” are only used to introduce technical features and should not be understood as limiting the specific quantity of the technical features, unless otherwise clearly defined; the term “multiple” refers to two or more, unless otherwise clearly defined.
  • Terms such as “installed”, “connected”, “connected”, and “fixed” should be understood in a broad sense. For example, “connected” can be a fixed connection, a detachable connection, or an integral connection; “connected” can be a direct connection or an indirect connection through an intermediate medium.
  • the terms “one embodiment”, “some embodiments”, “specific embodiments” and the like refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example included in the embodiment of the invention.
  • the schematic representation of the above terms in this specification does not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

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Abstract

一种能兼顾抗短路能力和极限分断能力的继电器，包括接触容器（10）、连接于接触容器（10）的一对静触点引出端（20）、固定设置于接触容器（10）内的第一导磁体（40）及推动杆组件（50）。推动杆组件包括设于接触容器（10）内的动簧片（54）以及均固定连接于动簧片（54）的第二导磁体（591）和第三导磁体（55），沿着推动杆组件（50）的运动方向，第二导磁体（591）和第三导磁体（55）设置于动簧片（54）的两个相对的侧面，用于形成第一导磁回路；沿着推动杆组件（50）的运动方向，第二导磁体（591）设置于第一导磁体（40）和动簧片（54）之间，第一导磁体（40）和第三导磁体（55）用于形成第二导磁回路。

Description

继电器
本公开要求于2022年10月12日提交的申请号为202211248990.1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
本公开实施例涉及电子元件技术领域，具体而言，涉及一种继电器。
背景技术
继电器是一种电子控制器件，它具有控制系统(又称输入回路)和被控制系统(又称输出回路)，通常应用于自动控制电路中。继电器实际上是用较小的电流去控制较大电流的一种“自动开关”。因此在电路中起着自动调节、安全保护、转换电路等作用。
高压直流继电器是继电器中的一种，为了解决高压直流继电器的触头因为短路电流产生的电动斥力而发生的触头弹开问题，相关技术中通常是设置抗短路环电磁结构。根据上轭铁设置的位置进一步区分为随动式结构和固定式结构。具体来说，随动式结构是指上轭铁设置在继电器的可动组件上，固定式结构是指上轭铁设置在除可动组件以外的固定位置。然而，虽然固定式抗短路结构的抗短路能力强，但由于抗短路能力与分断能力呈现负相关性，导致分断能力减弱。随动式抗短路结构受动铁芯保持力的影响，当短路电流较高时铁芯会脱开导致触点断开，而增大动铁芯的保持力，需增大线圈，这与小体积轻量化相矛盾。
发明内容
本公开实施例提供一种继电器，以兼顾抗短路能力和极限分断能力。
本公开实施例的继电器，包括接触容器、一对静触点引出端、第一导磁体以及推动杆组件。接触容器具有接触腔室；一对静触点引出端连接于所述接触容器；第一导磁体设于所述接触腔室内，且相对于所述接触容器固定设置；推动杆组件包括设于所述接触腔室内的动簧片、第二导磁体和第三导磁体；所述动簧片用于与一对所述静触点引出端接触或分离；所述第二导磁体和所述第三导磁体均固定连接于所述动簧片，且沿着所述推动杆组件的运动方向，所述第二导磁体和至少部分所述第三导磁体设置于所述动簧片的两个相对的侧面，所述第一导磁体和所述第二导磁均位于所述动簧片朝向所述静触点引出端的一侧，所述第二导磁体设置于所述第一导磁体和所述动簧片之间；所述第二导磁体和所述第三导磁体用于形成第一导磁回路，所述第一导磁体和所述第三导磁体用于形成第二导磁回路。
根据本公开的一些实施方式，所述第一导磁体的厚度大于等于所述第二导磁体的厚 度。
根据本公开的一些实施方式，所述接触容器还具有一对第一通孔和一第二通孔，所述第一通孔和所述第二通孔均连通于所述接触腔室；一对所述静触点引出端一一对应地穿设于一对所述第一通孔；
所述继电器还包括连接件，所述连接件穿设于所述第二通孔，且包括第一端和第二端，所述第一端与所述接触容器连接，所述第二端与所述第一导磁体连接。
根据本公开的一些实施方式，所述接触容器包括：
轭铁板，具有第三通孔，所述推动杆组件可移动地穿设于所述第三通孔；以及
绝缘罩，包括顶壁和侧壁，所述侧壁的一端环绕连接于所述顶壁的四周，所述侧壁的另一端连接于所述轭铁板；
其中，所述第一通孔和所述第二通孔开设于所述顶壁，所述连接件的第一端与所述顶壁的外壁面连接。
根据本公开的一些实施方式，所述绝缘罩包括陶瓷罩和框片，所述陶瓷罩包括所述顶壁和所述侧壁，所述侧壁的另一端通过所述框片连接于所述轭铁板；
所述顶壁的外壁面中，位于所述第一通孔的周缘设有第一金属化层，位于所述第二通孔的周缘设有第二金属化层；
所述静触点引出端通过所述第一金属化层与所述顶壁相焊接，所述连接件的第一端通过所述第二金属化层与所述顶壁相焊接。
根据本公开的一些实施方式，所述顶壁和所述侧壁为一体结构；或，所述顶壁和所述侧壁为分体结构。
根据本公开的一些实施方式，所述第一导磁体与所述顶壁的内壁面间隔设置。
根据本公开的一些实施方式，所述连接件的第二端与所述第一导磁体相铆接或焊接或胶接。
根据本公开的一些实施方式，所述第一导磁体包括多片叠置的导磁片，多片所述导磁片与所述连接件的第二端连接。
根据本公开的一些实施方式，所述接触容器包括：
轭铁板，具有第三通孔，所述推动杆组件可移动地穿设于所述第三通孔；以及
绝缘罩，连接于所述轭铁板；
所述继电器还包括固定架，所述固定架设于所述接触腔室内，且固定连接于所述轭铁板，所述第一导磁体固定连接于所述固定架。
根据本公开的一些实施方式，所述推动杆组件还包括：
底座；
弹性件，所述弹性件的一端抵接于所述底座，另一端抵接于所述动簧片、所述第二导磁体和所述第三导磁体构成的可动构件，所述弹性件提供弹性力，以使所述动簧片具有向所述静触点引出端移动的趋势；
限位结构，连接于所述底座和所述可动构件，用于限制所述可动构件相对于所述底座的移动范围；所述限位结构包括相配合的限位孔和限位部，所述限位孔包括沿所述动簧片的运动方向相对设置的第一孔壁和第二孔壁，所述限位部在所述限位孔的所述第一孔壁和所述第二孔壁之间可移动地穿设；
其中，在所述动簧片与所述静触点引出端分离时，所述限位部位于所述限位孔的所述第一孔壁。
根据本公开的一些实施方式，所述第二孔壁的尺寸大于所述第一孔壁的尺寸。
根据本公开的一些实施方式，所述限位部具有第一弧形表面，所述第一弧形表面用于在所述限位部位于所述限位孔的所述第一孔壁时，与所述限位孔实现限位。
根据本公开的一些实施方式，所述限位部为铆钉，所述铆钉铆接于所述第三导磁体。
根据本公开的一些实施方式，所述可动构件还包括固定件，所述固定件固定连接于所述第三导磁体，所述固定件和所述底座中的一个具有所述限位部，所述固定件和所述底座中的另一个设有所述限位孔。
上述发明中的一个实施例至少具有如下优点或有益效果：
本公开实施例的继电器，第二导磁体和第三导磁体能够形成第一导磁回路，第一导磁体和第三导磁体能够形成第二导磁回路，在第一导磁体、第二导磁体和第三导磁体的共同作用下，本公开实施例的继电器在提升抗短路能力的同时，还能够满足极限分断的要求。
附图说明
通过参照附图详细描述其示例实施方式，本公开的上述和其它特征及优点将变得更加明显。
图1示出本公开实施例的继电器的立体示意图。
图2示出图1中沿A-A面的剖视图。
图3示出第二导磁体和第三导磁体形成第一导磁回路的示意图。
图4示出第二导磁体和第三导磁体形成第一导磁回路，以及第一导磁体和第三导磁体形成第二导磁回路的示意图。
图5示出图1中静触点引出端、陶瓷罩、连接件和第一导磁体的分解示意图。
图6示出图5中沿连接件的轴线的剖视图。
图7示出本公开第一实施例的推动杆组件的示意图。
图8示出图7的分解示意图。
图9示出图7中X部分的局部放大图。
图10示出图7中沿B-B面的剖视图。
图11示出本公开第二实施例的推动杆组件的分解示意图。
图12示出本公开第三实施例的推动杆组件的分解示意图。
图13示出本公开第四实施例的推动杆组件的分解示意图。
图14示出本公开第五实施例的推动杆组件的分解示意图。
图15示出本公开第六实施例的推动杆组件的分解示意图。
图16示出第一导磁体固定连接于固定架的示意图。
其中，附图标记说明如下：
10、接触容器；101、接触腔室；102、第一通孔；103、第二通孔；11a、绝缘罩；
11、陶瓷罩；111、顶壁；112、侧壁；113、第一金属化层；114、第二金属化层；12、框片；13、轭铁板；131、第三通孔；20、静触点引出端；30、连接件；31、连接件的第一端；32、连接件的第二端；40、第一导磁体；41、导磁片；411、开孔；50、推动杆组件；51、杆部；52、底座；521、基部；522、第一限位件；523、第二限位件；524、第二弧形表面；53、可动构件；54、动簧片；55、第三导磁体；551、底部；552、第一侧部；553、第二侧部；56、弹性件；57、限位结构；571、限位部；571a、第一弧形表面；572、限位孔；573、限位孔的第一孔壁；574、限位孔的第二孔壁；577、第一斜壁；578、第二斜壁；579、铆钉；58、固定件；591、第二导磁体；592、线圈架；593、线圈；594、静铁芯；595、动铁芯；596、复位件；60、驱动组件；70、固定架；φ1、第一导磁回路；φ2、第二导磁回路；D1、运动方向；D2、长度方向；D3、宽度方向。
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公开将全面和完整，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。
可以理解的是，本公开实施例中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或组件。
如图1和图2所示，图1示出本公开实施例的继电器的立体示意图。图2示出图1中沿A-A面的剖视图。本公开实施例的继电器包括接触容器10、一对静触点引出端20、第一导磁体40、推动杆组件50和驱动组件60。
接触容器10包括轭铁板13和绝缘罩11a，绝缘罩11a罩设于轭铁板13的一侧面，以形成接触容器10的接触腔室101。一对静触点引出端20连接于接触容器10，每个静触点引出端20的一端伸入接触腔室101内。推动杆组件50包括动簧片54，动簧片54的两端能与一对静触点引出端20接触或分离。
驱动组件60连接于推动杆组件50，用于驱动动簧片54移动，以实现触点闭合。
作为一示例，驱动组件60包括线圈架592、线圈593、静铁芯594和动铁芯595。线圈架592呈中空筒状，且采用绝缘材料形成。线圈593环绕线圈架592。静铁芯594相对于线圈架592固定设置。动铁芯595连接于推动杆组件50，且与静铁芯594相对设置。当线圈593通电时，动铁芯595能够被静铁芯594吸引，从而带动推动杆组件50移动，使得动簧片54与一对静触点引出端20接触。
驱动组件60还包括复位件596，复位件596设置于静铁芯594和动铁芯595之间，用于当线圈593断电时，驱使动铁芯595复位。在一实施方式中，复位件596可以为弹簧，但不以此为限。
第一导磁体40设于接触腔室101内，且相对于接触容器10固定设置。
推动杆组件50包括设于接触腔室101内的动簧片54、第二导磁体591和第三导磁体55。第二导磁体591和第三导磁体55均固定连接于动簧片54，并且第二导磁体591和第三导磁体55与动簧片54随动。沿着推动杆组件50的运动方向D1，第二导磁体591和至少部分第三导磁体55设置于动簧片54的两个相对的侧面。第一导磁体40和第二导磁591均位于动簧片54朝向静触点引出端20的一侧。沿着推动杆组件50的运动方向D1，第二导磁体591设置于第一导磁体40和动簧片54之间。
具体来说，结合图2所示，接触容器10内由上至下依次布置第一导磁体40、第二导磁体591、动簧片54和第三导磁体55。也就是说，第一导磁体40和第二导磁体591位于动簧片54的一侧，第三导磁体55位于动簧片54的相反侧。
如图3所示，图3示出第二导磁体591和第三导磁体55形成第一导磁回路φ1的示意图。当通过动簧片54的电流在极限分断电流以下时，第一导磁回路φ1中产生的磁通较少，由于第二导磁体591相较于第一导磁体40更靠近第三导磁体55，导致绝大部分的磁通会在第二导磁体591和第三导磁体55之间(如图3箭头所示)。这样，第一导磁体40几乎不产生吸力，而第二导磁体591和第三导磁体55又固定在动簧片54上，故第二导磁体591与第三导磁体55之间的吸力为内力，不会对动簧片54产生力的作用。因此，在极限分断电流以下，动簧片54并不会受到额外的保持力而影响正常分断。
如图4所示，图4示出第二导磁体591和第三导磁体55形成第一导磁回路φ1，以及第一导磁体40和第三导磁体55形成第二导磁回路φ2的示意图。当通过动簧片54的电流逐渐变大，且超过极限分断电流时，产生的磁通较大，使得第二导磁体591达到磁饱和，而剩余的磁通就会流向第一导磁体40。这样就形成了双磁回路，即第二导磁体591与第三导磁体55形成第一导磁回路φ1，以及第一导磁体40与第三导磁体55形成第二导磁回路φ2。在大短路电流出现时，由于第一导磁体40存在磁通，故第一导磁体40与第三导磁体55之间产生吸力，该吸力可用于保持动簧片54在短路电流情况下不弹开。
由此可见，第二导磁体591起到了两个作用：第一，第二导磁体591分担了一部分的磁通，能够降低第一导磁体40对第三导磁体55的吸力。由于第二导磁体591和第三 导磁体55均固定连接于动簧片54，故第二导磁体591和第三导磁体55之间的吸力为内力。因此，第二导磁体591可降低第一导磁体40对第三导磁体55的吸力，有利于实现极限分断。第二，由于第一导磁体40和第二导磁体591位于动簧片54的同侧，故第一导磁体40和第二导磁体591的磁场方向为同方向(如图4均为向右)，这样第一导磁体40和第二导磁体591之间产生了相互排斥的作用力。进一步地，由于第一导磁体40相对于接触容器10固定设置，而第二导磁体591、第三导磁体55和动簧片54相互固定连接，这样相当于第一导磁体40对第二导磁体591施加了斥力，该斥力同样有利于实现极限分断。
承上所述，本公开实施例的继电器，第二导磁体591和第三导磁体55能够形成第一导磁回路φ1，第一导磁体40和第三导磁体55能够形成第二导磁回路φ2，在第一导磁体40、第二导磁体591和第三导磁体55的共同作用下，本公开实施例的继电器在提升抗短路能力的同时，还能够满足极限分断的要求。
还需要说明的是，由于第二导磁体591、第三导磁体55和动簧片54相互固定连接，且第一导磁体40和第二导磁体591位于动簧片54的同侧，这样第一导磁体40对第二导磁体591施加的斥力相当于直接作用在动簧片54上，使得动簧片54能够及时地与静触点引出端20实现分断，避免了触点粘连。
可以理解的是，第一导磁体40、第二导磁体591和第三导磁体55均可以采用铁，钴，镍，及其合金等材料制作而成。
请继续参阅图2至图4，第一导磁体40和第二导磁体591可以均为一字型，第三导磁体55可以为U型，但不以此为限。
第一导磁体40的厚度(沿着动簧片54的运动方向D1的尺寸)大于等于第二导磁体591的厚度。当然，当第一导磁体40的磁性更强时，第一导磁体40的厚度还可以小于第二导磁体591的厚度。
如图5和图6所示，图5示出图1中静触点引出端20、陶瓷罩11、连接件30和第一导磁体40的分解示意图。图6示出图5中沿连接件30的轴线的剖视图。第一导磁体40固定连接于接触容器10。具体来说，接触容器10还具有一对第一通孔102和一第二通孔103，第一通孔102和第二通孔103均连通于接触腔室101。一对静触点引出端20一一对应地穿设于一对第一通孔102。继电器还包括连接件30，连接件30穿设于第二通孔103，且包括第一端31和第二端32，第一端31与接触容器10连接，第二端32与第一导磁体40连接。
本实施例的继电器，接触容器10开设第二通孔103，连接件30穿设于第二通孔103，使得连接件30与接触容器10连接，第一导磁体40与连接件30连接。第一导磁体40通过连接件30连接接触容器10，而并不直接与接触容器10连接，使得连接过程无遮挡、可视化，既方便操作，又确保连接的可靠性。
参见图2和图6，绝缘罩11a包括陶瓷罩11和框片12。陶瓷罩11通过框片12与 轭铁板13连接。框片12可以呈环状结构的金属件，如铁镍合金，且框片12的一端连接于陶瓷罩11的开口边缘，例如通过激光焊、钎焊、电阻焊、胶粘等方式。框片12的另一端连接于轭铁板13，同样也可以通过激光焊、钎焊、电阻焊、胶粘等方式。在陶瓷罩11和轭铁板13之间设置一框片12，可方便陶瓷罩11和轭铁板13的连接。
参见图5，陶瓷罩11包括顶壁111和侧壁112，侧壁112的一端环绕连接于顶壁111的外周，侧壁112的另一端通过框片12连接于轭铁板13。第一通孔102和第二通孔103均开设于顶壁111，连接件30的第一端31与顶壁111的外壁面连接。
可以理解的是，一对静触点引出端20的其中一个作为电流流入的端子，另一个作为电流流出的端子。静触点引出端20穿设于第一通孔102，部分静触点引出端20伸入接触腔室101内，用于与动簧片54接触或分离。部分静触点引出端20外露于陶瓷罩11的外壁面。
静触点引出端20的底部作为静触点，动簧片54沿其长度方向D2的两端可以作为动触点。动簧片54两端的动触点可以凸出于动簧片54的其他部分，也可以是与其他部分齐平。
可以理解的是，静触点可以是一体或分体地设置在静触点引出端20的底部，动触点可以是一体或分体地设置在动簧片54沿其长度方向D2的两端。
第二通孔103可以设于两个第一通孔102之间，即连接件30设于一对静触点引出端20之间。
连接件30的数量可以为一个或多个。在本实施例中，连接件30的数量为两个，但不以此为限。
请继续参阅图5，陶瓷罩11的顶壁111的外壁面中，位于第一通孔102的周缘设有第一金属化层113，位于第二通孔103的周缘设有第二金属化层114。静触点引出端20通过第一金属化层113与顶壁111焊接，连接件30的第一端31通过第二金属化层114与顶壁111焊接。
相较于陶瓷罩11的内壁面，陶瓷罩11的顶壁111的外壁面更容易形成焊接平面。并且，由于陶瓷罩11的顶壁111需要设置静触点引出端20，而静触点引出端20与顶壁111焊接时，也需要在第一通孔102的周缘设置金属化层，故在加工第一通孔102的第一金属化层113时，一并将第二通孔103的第二金属化层114加工。因此，通过将连接件30焊接在陶瓷罩11的顶壁111的外壁面，可仅在顶壁111的外壁面加工金属化层，而无需在顶壁111的内壁面加工金属化层，既方便加工，又简化了加工步骤。
第一导磁体40与顶壁111的内壁面间隔设置，可以使连接件30的长度大于顶壁111的厚度和第一导磁体40的厚度之和，使得第一导磁体40通过连接件30悬挂于陶瓷罩11的顶壁111。
通过第一导磁体40与顶壁111的内壁面间隔设置，使得第一导磁体40与顶壁111的内壁面之间具有一间隙。由于第一导磁体40并不与顶壁111的内壁面直接接触，故 第一导磁体40的设置并不影响一对静触点引出端20的爬电距离。
请继续参阅图5和图6，第一导磁体40包括多片叠置的导磁片41，多片导磁片41与连接件30的第二端32连接。各导磁片41开设有开孔411，连接件30穿设于开孔411，且与导磁片41铆接。
当然，当第一导磁体40包括多片叠置的导磁片41时，位于最下方的导磁片41的开孔411还可以为盲孔，而其余导磁片41的开孔411为通孔。连接件30穿设于其余导磁片41的各个开孔411，且连接件30的第二端伸入位于最下方的导磁片41的盲孔内，并与该导磁片41相焊接。
此外，当第一导磁体40为一片时，第一导磁体40设有开孔411，该开孔411可以为通孔，也可以为盲孔。当开孔411为通孔时，连接件30穿过开孔411后，与第一导磁体40相铆接。当开孔411为盲孔时，盲孔内可以设置焊料，连接件30的第二端32伸入盲孔内，并与第一导磁体40焊接。
作为一示例，当短路电流达到10kA以上时，需要增大第一导磁体40的厚度，以产生更大的磁吸力，进而确保第一导磁体40和第二导磁体591之间的磁吸力能够克服短路电流产生的斥力，防止动簧片54与静触点引出端20弹开。然而，厚度较大的第一导磁体40的成本高，且与陶瓷罩11的连接难度较大。
本实施例中，由于第一导磁体40通过连接件30与接触容器10连接，故第一导磁体40可以包括多片叠置的导磁片41，且通过连接件30穿设多片导磁片41的第二通孔103进行连接，通过增加厚度较薄的导磁片41的数量，来增大第一导磁体40的整体厚度。一方面，导磁片41的厚度较薄，可以采用薄的带料制成，故物料成本较低，且易操作。另一方面，可根据短路电流的大小，灵活调整导磁片41的数量。
可以理解的是，第二导磁体591和第三导磁体55也可以均包括多片叠置的导磁片，或者，第三导磁体55包括多个并排布置的U型导磁体。
陶瓷罩11的顶壁111和侧壁112可以为分体结构，可以通过焊接相连。可以理解的是，通过将陶瓷罩11设计为顶壁111和侧壁112的分体结构，更方便连接件30与顶壁111的连接。当然，顶壁111和侧壁112之间还可以通过粘接连接在一起。
由于顶壁111为片状，片状结构更容易在顶壁111上加工第一通孔102、第二通孔103、第一金属化层113和第二金属化层114。进一步地，片状结构也更容易实现连接件30和顶壁111以及静触点引出端20和顶壁111的焊接。
当然，陶瓷罩11的顶壁111和侧壁112也可以为一体结构。
连接件30的第二端32与第一导磁体40的连接方式可以有多种实施方式，例如焊接、铆接、胶接等。
在本实施例中，连接件30的第二端32与第一导磁体40铆接连接。具体来说，连接件30的第二端32与第一导磁体40采用扩铆方式连接。
如图7至图10所述，图7示出本公开第一实施例的推动杆组件50的示意图。图8 示出图7的分解示意图。图9示出图7中X部分的局部放大图。图10示出图7中沿B-B面的剖视图。
推动杆组件50还包括杆部51、底座52、弹性件56和限位结构57。杆部51可移动地穿设于轭铁板13的第三通孔131(参见图2)。杆部51的一端与底座52连接，杆部51的另一端用于与继电器的动铁芯595连接(参见图2)。弹性件56的一端抵接于底座52，弹性件56的另一端抵接于动簧片54、第二导磁体591和第三导磁体55构成的可动构件53，弹性件56提供弹性力，以使动簧片54具有向静触点引出端20移动的趋势。
可以理解的是，弹性件56可以为弹簧，但不以此为限。
限位结构57连接于底座52和可动构件53，用于限制可动构件53相对于底座52的移动范围。限位结构57包括相配合的限位孔572和限位部571，限位孔572包括沿动簧片54的运动方向D1相对设置的第一孔壁573和第二孔壁574，第二孔壁574的尺寸(沿着动簧片54的长度D2方向的长度)大于第一孔壁573的尺寸，限位部571在限位孔572的第一孔壁573和第二孔壁574之间可移动地穿设。在动簧片54与静触点引出端20分离时，限位部571位于限位孔572的第一孔壁573。
在本实施例中，底座52通过限位结构57直接与可动构件53连接，使得底座52与可动构件53之间的装配更加简单。并且，由于可动构件53上方并不存在其余部件，故在超行程过程中，避免了该其余部件与第一导磁体40发生运动干涉。
可以理解的是，限位孔572可以为通孔，也可以为盲孔。
当动簧片54不与静触点引出端20接触时，在弹性件56的作用下，限位部571抵接于限位孔572的第一孔壁573。当动簧片54与静触点引出端20接触，且完成超行程的过程中，限位部571由限位孔572的第一孔壁573向第二孔壁574移动。由于限位孔572的第二孔壁574的尺寸大于第一孔壁573的尺寸，故限位孔572呈现“一端大另一端小”的结构，在超行程的过程中，限位部571与限位孔572的孔壁之间的间隙变大，可防止动簧片54相对于底座52的运动过程中，限位部571与限位孔572的孔壁发生摩擦卡涩。同时，限位孔572的第一孔壁573的尺寸较小，又不影响在初始状态限位部571与限位孔572的限位配合，避免动簧片54相对于底座52发生晃动。
需要说明的是，为了实现在初始状态，动簧片54与底座52的限位，限位孔572的第一孔壁573的尺寸大小应与限位部571的形状相适配，使得当限位部571位于限位孔572的第一孔壁573时，限位部571能够与限位孔572的孔壁实现限位。
请继续参阅图7至图10，由限位孔572的第一孔壁573向第二孔壁574的方向上，限位孔572的尺寸逐渐增大。在超行程过程中，限位部571由限位孔572的第一孔壁573向第二孔壁574移动的过程中，限位部571与限位孔572的孔壁之间的间隙逐渐增大。
具体来说，限位孔572具有相对设置的水平的第一孔壁573和第二孔壁574以及相 对设置的第一斜壁577和第二斜壁578，第一斜壁577和第二斜壁578的一端连接于第一孔壁573的两端，第一斜壁577和第二斜壁578的另一端连接于第二孔壁574的两端。
在本实施例中，限位孔572的形状大致为一等腰梯形，但不以此为限。例如，限位孔572的形状还可以为一普通梯形，即第一斜壁577与第二斜壁578的斜率不相等。在另外一些实施例中，限位孔572的形状还可以为一三角形，优选的，该三角形可以为一等腰三角形。
当然，在其他实施方式中，沿着限位孔572的第一孔壁573至第二孔壁574的方向上，限位孔572的尺寸也可以不是逐渐增大的，例如限位孔572的孔壁还可以包括等径段和扩径段。举例来说，由第一孔壁573至第二孔壁574，限位孔572的孔壁可以依次包括扩径段、等径段、扩径段、等径段等。
如图9所示，限位部571具有第一弧形表面571a，第一弧形表面571a用于在限位部571位于限位孔572的第一孔壁573时，与限位孔572的第一斜壁577与第二斜面第二斜壁578实现限位。
在本实施例中，通过将限位部571的外侧壁设计为包括第一弧形表面571a，使得第一弧形表面571a与限位孔572的第一斜壁577与第二斜面第二斜壁578之间为线接触，线接触降低了限位部571与限位孔572的孔壁之间的摩擦力。当限位部571与限位孔572产生相对移动时，不易发生卡涩。
底座52设有限位孔572，可动构件53包含限位部571。当然，在其他实施方式中，限位孔572也可以设置在可动构件53上，限位部571设置在底座52上。
如图7至图10，在本实施例中，底座52设有限位孔572，第三导磁体55设有限位部571。所述第三导磁体55包括底部551、第一侧部552和第二侧部553。第一侧部552和第二侧部553沿着所述动簧片54的宽度方向D3分别连接于底部551的两端。第一侧部552和第二侧部553分别设置于动簧片54的宽度方向D3的两个相对的侧边。第一侧部552和第二侧部553均设有限位部571。
可以理解的是，运动方向D1、长度方向D2和宽度方向D3两两相互垂直。
底座52包括基部521以及连接于基部521且相对设置的第一限位件522和第二限位件523，第一侧部552与第一限位件522对应设置，第二侧部553与第二限位件523对应设置，第一限位件522和第二限位件523均开设有限位孔572。
第一限位件522朝向第一侧部552的一侧表面以及第二限位件523朝向第二侧部553的一侧表面包括第二弧形表面524。
在本实施例中，通过将第一限位件522朝向第一侧部552的侧表面以及第二限位件523朝向第二侧部553的侧表面设计为均包括第二弧形表面524，使得两个第二弧形表面524分别与第一侧部552和第二侧部553为线接触，线接触降低了第一侧部552与第一限位件522以及第二侧部553与第二限位件523之间的摩擦力。当第三导磁体55相 对于底座52产生相对移动时，更加不易发生卡涩。并且，能够避免产生刮屑而污染继电器的接触腔室101。
第一侧部552和第二侧部553位于第一限位件522和第二限位件523之间。第一侧部552背离第二侧部553的一侧以及第二侧部553背离第一侧部552的一侧均凸设有限位部571。
作为一示例，限位部571的形成可以采用冲压第一侧部552/第二侧部553的侧面，而使限位部571形成冲苞结构。冲苞结构于第一侧部552/第二侧部553的具体位置可以根据结构灵活调整。
在本实施例中，由于两个限位部571分别凸设于第一侧部552背离第二侧部553的一侧，以及第二侧部553背离第一侧部552的一侧，使得第一侧部552和第二侧部553能够分别与第一限位件522和第二限位件523接触充分，进而确保第三导磁体55与底座52限位时的稳定性，且不会影响导磁效率。
在一实施方式中，限位部571可以为长条形。当限位部571位于限位孔572的第一孔壁573时，长条形限位部571的面积较大的侧面与限位孔572的第一孔壁573接触。通过将限位部571的面积较大的表面与限位孔572的孔壁接触，有效地避免了在初始状态动簧片54相对于底座52发生摆动，降低了动簧片54发生回跳、回弹的概率。
如图11所示，图11示出本公开第二实施例的推动杆组件50的分解示意图。第二实施例与上述第一实施例的相同之处不再赘述，其不同之处在于：
限位部571包括两个凸包结构。两个凸包结构沿着动簧片54的长度方向D2间隔设置。双凸包结构的设计，有效地避免了在初始状态动簧片54相对于底座52发生摆动，降低了动簧片54发生回跳、回弹的概率。
如图12所示，图12示出本公开第三实施例的推动杆组件50的分解示意图。第三实施例与上述第一实施例的相同之处不再赘述，其不同之处在于：
限位部571为铆钉579，铆钉579铆接于第三导磁体55的第一侧部552/第二侧部553。
如图13所示，图13示出本公开第四实施例的推动杆组件50的分解示意图。第四实施例与上述第一实施例的相同之处不再赘述，其不同之处在于：限位部571设置于第三导磁体55的底部551上。
具体来说，第三导磁体55包括底部551、第一侧部552和第二侧部553。沿着动簧片54的宽度方向D3，底部551的两个相对的侧边均凸设有限位部571。第一侧部552和第二侧部553沿着动簧片54的宽度方向D3分别连接于底部551的两端。第一侧部552和第二侧部553分别设置于动簧片54的宽度方向D3的两个相对的侧边。
底座52包括基部521以及连接于基部521且相对设置的第一限位件522和第二限位件523，第一限位件522和第二限位件523均开设有限位孔572。
如图14所示，图14示出本公开第五实施例的推动杆组件50的分解示意图。第五 实施例与第一实施例的相同之处不再赘述，其不同之处在于：
底座52包括基部521以及连接于基部521且相对设置的第一限位件522和第二限位件523，第一限位件522和第二限位件523均开设有限位孔572。可动构件53还包括固定连接于第三导磁体55的固定件58，固定件58的相对两侧均设有限位部571。
如图15所示，图15示出本公开第六实施例的推动杆组件50的分解示意图。第六实施例与第一实施例的相同之处不再赘述，其不同之处在于：
限位部571凸设于推动杆组件50的底座52的两个相对的侧边。可动构件53还包括固定连接于第三导磁体55的固定件58，固定件58设有限位孔572。
固定件58呈倒U型，设于固定件58上的限位孔572的第一孔壁573和第二孔壁574的位置刚好与上述实施例的限位孔572的相反。
具体来说，如图15所示，限位孔572的第一孔壁573位于下方，而第二孔壁574位于上方，第二孔壁574的尺寸大于第一孔壁573的尺寸。
如图11至图14所示，限位孔572的第一孔壁573位于上方，而第二孔壁574位于下方。
如图16所示，图16示出第一导磁体40固定连接于固定架70的示意图。第一导磁体40相对于接触容器10固定设置的方式，除了上述第一导磁体40固定连接于陶瓷罩11上，第一导磁体40还可以固定连接于一固定架70上。
具体来说，继电器还包括固定架70，固定架70设于接触腔室101内，且固定连接于轭铁板13。第一导磁体40固定连接于该固定架70。其中，第一导磁体40、第二导磁体591、第三导磁体55和动簧片54的相对位置关系可参照上述说明，此处不再赘述。
可以理解的是，本公开提供的各个实施例/实施方式在不产生矛盾的情况下可以相互组合，此处不再一一举例说明。
在发明实施例中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“一对”、“一”仅用于引出技术特征，而不应理解为是对该技术特征的具体数量的限定，除非另有明确的限定；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在发明实施例中的具体含义。
发明实施例的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述发明实施例和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对发明实施例的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于发明实施例 的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为发明实施例的优选实施例而已，并不用于限制发明实施例，对于本领域的技术人员来说，发明实施例可以有各种更改和变化。凡在发明实施例的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在发明实施例的保护范围之内。

Claims (15)

  1. 一种继电器，其特征在于，包括：
    接触容器，具有接触腔室；
    一对静触点引出端，连接于所述接触容器；
    第一导磁体，设于所述接触腔室内，且相对于所述接触容器固定设置；以及
    推动杆组件，包括设于所述接触腔室内的动簧片、第二导磁体和第三导磁体；所述动簧片能与一对所述静触点引出端接触或分离；所述第二导磁体和所述第三导磁体均固定连接于所述动簧片，且沿着所述推动杆组件的运动方向，所述第二导磁体和所述第三导磁体设置于所述动簧片的两个相对的侧面，所述第一导磁体和所述第二导磁均位于所述动簧片朝向所述静触点引出端的一侧，所述第二导磁体设置于所述第一导磁体和所述动簧片之间；所述第二导磁体和所述第三导磁体用于形成第一导磁回路，所述第一导磁体和所述第三导磁体用于形成第二导磁回路。
  2. 根据权利要求1所述的继电器，其特征在于，所述第一导磁体的厚度大于等于所述第二导磁体的厚度。
  3. 根据权利要求1所述的继电器，其特征在于，所述接触容器还具有一对第一通孔和一第二通孔，所述第一通孔和所述第二通孔均连通于所述接触腔室；一对所述静触点引出端一一对应地穿设于一对所述第一通孔；
    所述继电器还包括连接件，所述连接件穿设于所述第二通孔，且包括第一端和第二端，所述第一端与所述接触容器连接，所述第二端与所述第一导磁体连接。
  4. 根据权利要求3所述的继电器，其特征在于，所述接触容器包括：
    轭铁板，具有第三通孔，所述推动杆组件可移动地穿设于所述第三通孔；以及
    绝缘罩，包括顶壁和侧壁，所述侧壁的一端环绕连接于所述顶壁的四周，所述侧壁的另一端连接于所述轭铁板；
    其中，所述第一通孔和所述第二通孔开设于所述顶壁，所述连接件的第一端与所述顶壁的外壁面连接。
  5. 根据权利要求4所述的继电器，其特征在于，所述绝缘罩包括陶瓷罩和框片，所述陶瓷罩包括所述顶壁和所述侧壁，所述侧壁的另一端通过所述框片连接于所述轭铁板；
    所述顶壁的外壁面中，位于所述第一通孔的周缘设有第一金属化层，位于所述第二通孔的周缘设有第二金属化层；
    所述静触点引出端通过所述第一金属化层与所述顶壁相焊接，所述连接件的第一端通过所述第二金属化层与所述顶壁相焊接。
  6. 根据权利要求4所述的继电器，其特征在于，所述顶壁和所述侧壁为一体结构；或，所述顶壁和所述侧壁为分体结构。
  7. 根据权利要求4所述的继电器，其特征在于，所述第一导磁体与所述顶壁的内壁面间隔设置。
  8. 根据权利要求3所述的继电器，其特征在于，所述连接件的第二端与所述第一导磁体相铆接或焊接或胶接。
  9. 根据权利要求3所述的继电器，其特征在于，所述第一导磁体包括多片叠置的导磁片，多片所述导磁片与所述连接件的第二端连接。
  10. 根据权利要求1所述的继电器，其特征在于，所述接触容器包括：
    轭铁板，具有第三通孔，所述推动杆组件可移动地穿设于所述第三通孔；以及
    绝缘罩，连接于所述轭铁板；
    所述继电器还包括固定架，所述固定架设于所述接触腔室内，且固定连接于所述轭铁板，所述第一导磁体固定连接于所述固定架。
  11. 根据权利要求1至10任一项所述的继电器，其特征在于，所述推动杆组件还包括：
    底座；
    弹性件，所述弹性件的一端抵接于所述底座，另一端抵接于所述动簧片、所述第二导磁体和所述第三导磁体构成的可动构件，所述弹性件提供弹性力，以使所述动簧片具有向所述静触点引出端移动的趋势；
    限位结构，设置于所述底座和所述可动构件，用于限制所述可动构件相对于所述底座的移动范围；所述限位结构包括相配合的限位孔和限位部，所述限位孔包括沿所述动簧片的运动方向相对设置的第一孔壁和第二孔壁，所述限位部在所述限位孔的所述第一孔壁和所述第二孔壁之间可移动地穿设；
    其中，在所述动簧片与所述静触点引出端分离时，所述限位部位于所述限位孔的所述第一孔壁。
  12. 根据权利要求11所述的继电器，其特征在于，所述第二孔壁的尺寸大于所述第一孔壁的尺寸。
  13. 根据权利要求11所述的继电器，其特征在于，所述限位部具有第一弧形表面，所述第一弧形表面用于在所述限位部位于所述限位孔的所述第一孔壁时，与所述限位孔实现 限位。
  14. 根据权利要求11所述的继电器，其特征在于，所述限位部为铆钉，所述铆钉铆接于所述第三导磁体。
  15. 根据权利要求11所述的继电器，其特征在于，所述可动构件还包括固定件，所述固定件固定连接于所述第三导磁体，所述固定件和所述底座中的一个设置所述限位部，所述固定件和所述底座中的另一个设置所述限位孔。
PCT/CN2023/123428 2022-10-12 2023-10-08 继电器 WO2024078423A1 (zh)

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