WO2022152219A1 - 一种拍合式双稳态磁路结构及磁保持继电器 - Google Patents

一种拍合式双稳态磁路结构及磁保持继电器 Download PDF

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Publication number
WO2022152219A1
WO2022152219A1 PCT/CN2022/071856 CN2022071856W WO2022152219A1 WO 2022152219 A1 WO2022152219 A1 WO 2022152219A1 CN 2022071856 W CN2022071856 W CN 2022071856W WO 2022152219 A1 WO2022152219 A1 WO 2022152219A1
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WIPO (PCT)
Prior art keywords
armature
shaped
yoke
magnetic circuit
snap
Prior art date
Application number
PCT/CN2022/071856
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English (en)
French (fr)
Inventor
钟叔明
何仲波
池言
代文广
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
Priority to JP2023542939A priority Critical patent/JP2024503084A/ja
Priority to EP22739095.2A priority patent/EP4280248A1/en
Priority to KR1020237026127A priority patent/KR20230125061A/ko
Priority to US18/261,536 priority patent/US20240087827A1/en
Publication of WO2022152219A1 publication Critical patent/WO2022152219A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H01H50/40—Branched or multiple-limb main magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/46—Short-circuited conducting sleeves, bands, or discs
    • 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
    • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
    • H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • 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
    • H01H2050/367—Methods for joining separate core and L-shaped yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former

Definitions

  • the present disclosure relates to the technical field of relays, in particular to a snap-on bistable magnetic circuit structure and a magnetic latching relay.
  • the bistable magnetic circuit structure is to add magnetic steel to the magnetic circuit structure, and use the magnetic steel to form a two-way magnetic field circuit in the state where the moving and static contacts of the relay are opened and closed, which is generated by the action of the magnetic field circuit on the moving component (such as the armature).
  • the function of the holding force further realizes the opening and closing of the dynamic and static contacts of the relay.
  • the coil is only excited at the moment when the dynamic and static contacts are opened and closed.
  • FIG. 1 is a schematic diagram of a snap-on bistable magnetic circuit structure in the related art.
  • the snap-on bistable magnetic circuit structure includes a coil former 101 , an enameled wire 102 , an iron core 103 , and two yokes The iron 104 and the armature part 105; the enameled wire 102 is wound on the coil frame 101, the iron core 103 is installed in the iron core installation hole of the coil frame 101, and one end of each of the two yokes 104 is respectively fixed with the two ends of the iron core 103, The other ends of the two yokes 104 are respectively used to match with the armature part 105.
  • the armature part 105 is integrally injection-molded and includes two armatures 106 and a magnet, wherein the magnet is located between the two armatures 106 and is connected to each other. It is wrapped in the plastic part 107, the two ends of the two armatures 106 respectively protrude out of the plastic part 107 to form an I-shaped integral part, and the other ends of the two yokes 104 are respectively matched with the I-shaped. In the notches on both sides of the integral piece, the middle of the armature part 105 is set to be rotatable. When the armature part 105 rotates, the protruding armatures 106 on both sides of the armature part 105 are matched with the yoke 104 in a snap fit.
  • This snap-fit bistable magnetic circuit structure includes 8 parts except the coil, and during the assembly process, the yoke 104 and the iron core 103 need to be riveted, and the armature part 105 needs to be integrally injected.
  • the assembly and molding process of the entire magnetic circuit structure It is more complicated; in addition, in order to ensure that the action and reset voltage are basically equal, the shock resistance of the dynamic and static contacts of the relay in the open and closed states is basically the same, and the magnetic circuit structure should be made into a symmetrical structure, that is, the armature part 105 should be made into a symmetrical structure , the yoke 104 should also be designed into a symmetrical structure, through the symmetrical structure to ensure the same force arm after the coils on both sides are energized during action and return, so as to ensure the same rotational moment around the fulcrum on both sides during operation and return;
  • the purpose of the present disclosure is to overcome the deficiencies of the related art and provide a snap-type bistable magnetic circuit structure and a magnetic latching relay. Through structural improvement, both the number of parts and the processing procedure are reduced, and the product structure and processing technology are simple. , the production cost is low and the assembly is convenient.
  • a snap-type bistable magnetic circuit structure comprising a coil, an L-shaped armature, an L-shaped yoke and a magnetic steel; the L-shaped armature is arranged in the L-shaped armature after being rotated 180 degrees.
  • the sides of the yoke form the outline of the frame shape together, and at the two opposite diagonal corners of the frame, the junction of the L-shaped armature and the L-shaped yoke is respectively provided with a preset first gap;
  • the yoke includes a first yoke portion and a second yoke portion that form an L-shape, the coil is matched with the first yoke portion of the L-shaped yoke, and one end of the magnetic steel is connected to the first yoke portion of the L-shaped yoke.
  • a yoke part is connected; the L-shaped armature includes a first armature part and a second armature part that form an L shape, and the first armature part is matched with the other end of the magnetic steel to perform a seesaw-type movement, so that the magnetic steel and the parts are not in the same structure.
  • a bistable magnetic circuit is formed between the symmetrical L-shaped armature and the L-shaped yoke, and the switching between the two stable states of the bistable magnetic circuit is realized by the excitation of the coil.
  • the first armature part of the L-shaped armature and the first yoke part of the L-shaped yoke are respectively located on two opposite sides of the frame shape; One end is perpendicularly connected to the first yoke part of the L-shaped yoke in the frame shape enclosed by the L-shaped armature and the L-shaped yoke, and the two end faces of the magnet steel are magnetic pole faces.
  • the inner side surface of the tip of the first armature part of the L-shaped armature corresponds to the end surface of the second yoke part of the L-shaped yoke, and the third yoke part of the L-shaped yoke
  • the inner surface of the end of the first yoke part corresponds to the end surface of the second armature part of the L-shaped armature.
  • the bistable magnetic path passes through the magnetic steel, a section of the first armature portion of the L-shaped armature, the second yoke portion of the L-shaped yoke, and the first yoke of the L-shaped yoke
  • Two magnetic circuits are formed.
  • the inner surface of the distal end of the first armature portion of the L-shaped armature is in contact with the end surface of the second yoke portion of the L-shaped yoke.
  • the magnetic steel is located between the middle of the first yoke portion of the L-shaped yoke and the middle of the first armature portion of the L-shaped armature.
  • the length dimension of the first armature portion of the L-shaped armature is greater than the length dimension of the second armature portion of the L-shaped armature; the length of the first yoke portion of the L-shaped yoke The length dimension is larger than the length dimension of the second yoke portion of the L-shaped yoke.
  • the coil includes a bobbin and an enameled wire wound on a winding window of the bobbin, and the first yoke portion of the L-shaped yoke is inserted into a core mounting hole of the bobbin , the middle part of the winding window of the coil frame is provided with a magnetic steel installation hole facing the first armature part of the L-shaped armature, the magnetic steel installation hole is communicated with the iron core installation hole, and the magnetic steel installation hole is connected with the iron core installation hole. Fitted in the magnetic steel mounting hole of the coil frame.
  • the first armature part of the L-shaped armature is swingably matched with the L-shaped yoke by taking the other end of the magnetic steel as a rotational support point, so as to realize a seesaw-type movement.
  • an end face of the other end of the magnetic steel is provided with a protruding first convex portion, the first convex portion is integrally formed with the magnetic steel, and the first convex portion of the magnetic steel is formed integrally with the magnetic steel.
  • the first armature part of the L-shaped armature is abutted against the inner side of the first armature part of the L-shaped armature, so that the first armature part of the L-shaped armature can swingably cooperate with the L-shaped yoke with the other end of the magnetic steel as a rotation support point.
  • the inner surface of the first armature part of the L-shaped armature is provided with a protruding second convex part, the second convex part is integrally formed with the first armature part, the The second protrusion of the first armature part of the L-shaped armature abuts against the end face of the other end of the magnetic steel, so that the first armature part of the L-shaped armature can swing with the other end of the magnetic steel as a rotational support point.
  • L-shaped yoke to match.
  • a magnetic conductive member is further installed between the other end of the magnetic steel and the first armature part of the L-shaped armature, and the magnetic conductive member is connected to the first armature of the L-shaped armature.
  • the end of the L-shaped armature is provided with a protruding third convex part, the third convex part is integrally formed with the magnetic conductive part, and the first armature part of the L-shaped armature is formed with the corresponding end of the magnetic conductive part.
  • it is swivelably matched with the L-shaped yoke.
  • limit rotation shafts are respectively provided on both sides of the width of the first armature part of the L-shaped armature, and the center line of the limit rotation shaft vertically intersects one end to the other end of the magnetic steel and passes through all the The connection line or extension line of the rotating support point;
  • the coil frame is provided with a fourth convex portion extending in the direction of the first armature portion of the L-shaped armature, and the fourth convex portion is provided with a fourth convex portion adapted to the L-shaped armature.
  • the groove of the limiting rotating shaft of the first armature part of the armature, the limiting rotating shaft of the L-shaped armature is rotatably limited and fitted in the groove of the fourth convex part of the coil frame.
  • the center line of the limit rotation shaft coincides with the rotation support point.
  • the groove of the fourth convex portion of the coil former is matched with the limiting shaft of the L-shaped armature in an arc shape.
  • the rotating shaft of the L-shaped armature is integrally formed with fifth convex portions on both sides of the width of the first armature portion of the L-shaped armature.
  • the first armature part of the L-shaped armature is also partially covered with a plastic part, and the rotating shaft of the L-shaped armature is integrally formed on the plastic part and corresponds to the L-shaped part. Sixth protrusions on both sides of the width of the first armature part of the armature.
  • a compression spring is further connected to the first armature part of the L-shaped armature, and the first armature part of the L-shaped armature is connected to the coil former through the compression spring.
  • the compression spring includes a main piece body and a fin, the fins are bent from two sides of the main piece body and protrude from one side thereof, and the first armature part of the L-shaped armature
  • the side of the first yoke part facing away from the L-shaped yoke is protruding outward with a convex bud
  • the main body is provided with a first clamping hole
  • the first clamping hole of the main body is connected to the The protruding buds of the first armature part of the L-shaped armature are correspondingly matched; the fins of the compression spring extend toward the coil frame and are connected with the coil frame.
  • the fin of the compression spring is provided with a second clamping hole
  • the corresponding position of the coil frame is provided with a clamping block
  • the second clamping hole of the fin of the compression spring is connected to the The clamping blocks of the coil frame are clamped and matched.
  • the second clamping hole of the fin of the compression spring is an elongated strip, and a card is provided on one side of the second clamping hole; a side of the clamping block facing the main body of the compression spring The side is provided with an inclined surface, and the side of the clamping block facing away from the main body of the compression spring is set as a straight surface; the card of the second clamping hole is matched with the straight surface of the clamping block.
  • a side of the first armature part of the L-shaped armature facing away from the first yoke part of the L-shaped yoke is provided with a recess, and the compression spring corresponds to the recess
  • the elastic tongue piece of the compression spring abuts in the concave part of the first armature part of the L-shaped armature.
  • a preset second gap is provided between the first armature part of the L-shaped armature and the other end of the magnetic steel; on both sides of the L-shaped armature in the width direction , and corresponding to the extension line of the connecting line from one end of the magnetic steel to the other end, there is also a rotating shaft respectively, so as to use the rotating shaft to realize the seesaw movement; the coil frame is provided with a rotating shaft for the L-shaped armature The support part for supporting.
  • a magnetic latching relay comprising a base, a static spring portion, a moving spring portion, a push card, and the above-mentioned snap-on bistable magnetic circuit structure, the snap-on bistable magnetic circuit structure
  • the static spring part and the dynamic spring part are respectively mounted on the base, and the push card is connected between the first armature part of the L-shaped armature of the snap-fit bistable magnetic circuit structure and the movable spring plate of the dynamic spring part.
  • the base and the bobbin of the coil of the snap-fit bistable magnetic circuit structure are integrally injection-molded integral parts; hole.
  • the present disclosure adopts a coil, an L-shaped armature, an L-shaped yoke and a magnetic steel to form a snap-fit bistable magnetic circuit structure, there are only three parts except the coil, and the assembly between the three parts is quite convenient , there is no need to riveted the yoke and the iron core as in the related art, and there is no need to inject the armature part as a whole as in the related art, especially the asymmetry of the parts using the L-shaped armature and the L-shaped yoke
  • the symmetrical rotational moment is formed, which solves the drawbacks caused by the symmetrical structure of the traditional bistable magnetic circuit structure, and makes the processing of parts simpler, which not only reduces the number of parts, but also reduces the processing procedures. Low cost and easy assembly.
  • FIG. 1 is a schematic diagram of a snap-on bistable magnetic circuit structure in the related art.
  • FIG. 2 is a cross-sectional view of the snap-on bistable magnetic circuit structure according to the first embodiment of the present disclosure.
  • FIG 3 is a cross-sectional view of the snap-on bistable magnetic circuit structure (the armature, the yoke, the magnetic steel and the coil are not assembled) according to the first embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of the coil according to the first embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a design state of the snap-on bistable magnetic circuit structure according to the first embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of the magnetic circuit of the snap-on bistable magnetic circuit structure in one state according to the first embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of the magnetic circuit of the snap-on bistable magnetic circuit structure in another state according to the first embodiment of the present disclosure.
  • FIG. 8 is a schematic three-dimensional structure diagram of the L-shaped armature according to the first embodiment of the present disclosure.
  • FIG. 9 is a schematic three-dimensional structural diagram of the magnetic latching relay (without the case) according to the first embodiment of the present disclosure.
  • FIG. 10 is an exploded schematic diagram of the three-dimensional structure of the magnetic latching relay according to the first embodiment of the present disclosure.
  • FIG. 11 is a structural cross-sectional view of the magnetic latching relay according to the first embodiment of the present disclosure.
  • FIG. 12 is a simple schematic diagram of the snap-on bistable magnetic circuit structure according to the second embodiment of the present disclosure.
  • FIG. 13 is a simplified schematic diagram of the snap-on bistable magnetic circuit structure according to the third embodiment of the present disclosure.
  • FIG. 14 is a schematic three-dimensional structural diagram of the L-shaped armature according to the fourth embodiment of the present disclosure.
  • FIG. 15 is a simplified schematic diagram of the snap-on bistable magnetic circuit structure according to the fifth embodiment of the present disclosure.
  • 16 is a schematic three-dimensional structural diagram of the snap-on bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • 17 is a side view of the snap-on bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • FIG. 18 is an exploded schematic view of the structure of the snap-fit bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • 19 is a schematic diagram of the cooperation between the compression spring and the L-shaped armature of the snap-type bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • 20 is a schematic three-dimensional structural diagram of the L-shaped armature of the snap-on bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • 21 is a schematic three-dimensional structural diagram of the compression spring of the snap-fit bistable magnetic circuit structure according to the sixth embodiment of the present disclosure.
  • a snap-fit bistable magnetic circuit structure of the present disclosure includes a coil 1 , an L-shaped armature 2 , an L-shaped yoke 3 and a magnetic steel 4 ; the L-shaped yoke 3
  • the first yoke portion 31 and the second yoke portion 32 are included, and the first yoke portion 31 and the second yoke portion 32 are formed into an L shape.
  • the first yoke part 31 is arranged vertically, the second yoke part 32 of the L-shaped yoke 3 is arranged horizontally, and the second yoke part 32 of the L-shaped yoke 3 is at the upper part;
  • the L-shaped armature 2 is arranged on the side of the L-shaped yoke 3 after being rotated 180 degrees, that is, the L-shaped armature 2 is rotated 180 degrees around the vertical side of the L-shaped axis, and together with the L-shaped yoke 3 forms a frame shape
  • the outline of the L-shaped armature 2 includes a first armature part 21 and a second armature part 22, the first armature part 21 is arranged vertically, the second armature part 22 of the L-shaped armature 2 is arranged horizontally, and the L-shaped armature 2 is arranged horizontally.
  • the second armature part 22 is located at the lower part; at the two opposite diagonal corners of the frame, the junction of the L-shaped armature 2 and the L-shaped yoke 3 is provided with a preset first gap, namely the upper gap H1 and the lower gap H2 (As shown in FIG.
  • the above-mentioned first gap can be changed, and the first gap in the working state can also be referred to as a working air gap;
  • the coil 1 is fitted in the L-shaped yoke 3
  • One side of the L-shaped yoke 3 is the vertically arranged first yoke part 31, one end of the magnetic steel 4 is connected to the first yoke part 31 of the L-shaped yoke 3;
  • the L-shaped part of the L-shaped armature 2 is vertical
  • the first armature part 21 is matched with the other end of the magnetic steel 4 to perform a seesaw movement, thereby forming a bistable magnetic circuit, and use the excitation of the coil to realize the switching between the two stable states of the bistable magnetic circuit, that is, the two ends of the L-shaped armature 2 realize the snap action under the excitation of the coil 1.
  • the L-shaped armature 2 and the L-shaped yoke 3 form a frame-shaped outline, and there must be an upper gap H1 and a lower gap H2 at the two opposite diagonal corners of the frame. In this way, the L-shaped armature 2 can perform the seesaw-type movement.
  • the L-shaped armature 2 is in a balanced state, and there are two gaps between the L-shaped armature 2 and the L-shaped yoke 3.
  • the first armature part 21 of the L-shaped armature 2 and the first yoke part 31 of the L-shaped yoke 3 are located on two opposite sides of the frame shape; the magnetic steel One end of 4 is vertically connected to the first yoke part 31 of the L-shaped yoke 3 in the frame shape enclosed by the L-shaped armature and the L-shaped yoke.
  • the magnetic steel 4 is perpendicular to the first armature part 21 of the L-shaped armature 2 and the first yoke part 31 of the L-shaped yoke 3 respectively, and the two end faces of the magnetic steel 4 are magnetic poles
  • the side of the magnetic steel 4 that is close to the first yoke part 31 of the L-shaped yoke 3 is the N pole
  • the side of the magnetic steel 4 that is close to the first armature part 21 of the L-shaped armature 2 is the S pole (as shown in FIG. 6 , Figure 7).
  • the inner surface of the end of the first armature part 21 of the L-shaped armature 2 corresponds to the end surface of the second yoke part 32 of the L-shaped yoke 3 .
  • the inner surface of the distal end of the first yoke portion 31 corresponds to the end surface of the second armature portion 22 of the L-shaped armature 2 .
  • the bistable magnetic path passes through the magnetic steel 4 , a section of the first armature portion 21 of the L-shaped armature 2 , the second yoke portion 32 of the L-shaped yoke 3 , and the second yoke portion of the L-shaped yoke 3 .
  • the first magnetic circuit of one section of the yoke part 31 passes through the magnetic steel 4 , the other section of the first armature part 21 of the L-shaped armature 2 , the second armature part 22 of the L-shaped armature 2 , and the second armature of the L-shaped yoke 3 .
  • the second magnetic circuit of the other stage of the first yoke portion 31 is constituted.
  • the inner surface of the end of the first armature part 21 of the L-shaped armature 2 is in contact with the end surface of the second yoke part 32 of the L-shaped yoke 3
  • the upper gap H1 is smaller than the lower gap H2
  • the L-shaped armature 2 is in another stable state.
  • the inner surface of the end of the first armature part 21 of the L-shaped armature 2 and the end surface of the second yoke part 32 of the L-shaped yoke 3 are working pole surfaces that cooperate with each other.
  • the inner surface of the end of the first armature part 21 of the L-shaped armature 2 is set as a certain inclined surface, so as to fit the end surface of the second yoke part 32 of the L-shaped yoke 3.
  • the end surface of the second yoke part 32 of the L-shaped yoke 3 is set to be inclined; similarly, the inner surface of the end of the first yoke part 31 of the L-shaped yoke 3 and the second end of the L-shaped armature 2
  • the end faces of the armature part 22 are also working pole faces that cooperate with each other, and one of them is set to be inclined to facilitate the cooperation.
  • the magnetic steel 4 is located between the middle portion of the first yoke portion 31 of the L-shaped yoke 3 and the middle portion of the first armature portion 21 of the L-shaped armature 2 .
  • the length dimension of one side (the first armature part 21 ) of the L-shape of the L-shaped armature 2 is larger than the length dimension of the other side (the second armature part 22 ) of the L-shape of the L-shaped armature 2 5, the length dimension of the first armature part 21 in the vertical direction is greater than the length dimension of the second armature part 22 in the horizontal direction; one side of the L-shape of the L-shaped yoke 3 (the first yoke The length dimension of the iron part 31) is greater than the length dimension of the other side of the L-shape (the second yoke part 32) of the L-shaped yoke 3, that is, as shown in FIG. 5, the first yoke part 31 is in the vertical direction is greater than the length of the second yoke portion 32 in the horizontal direction.
  • the coil 1 includes a coil frame 12 and an enameled wire 11 wound on a winding window of the coil frame.
  • the first yoke portion 31 of the L-shaped yoke 3 is inserted into the core of the coil frame 12
  • a magnetic steel mounting hole 123 facing the first armature part 21 of the L-shaped armature 2 is provided in the middle of the winding window of the coil former 12 , and the magnetic steel mounting hole 123 is mounted with the iron core.
  • the holes 121 are connected, and the magnetic steel 4 is fitted in the magnetic steel mounting holes 123 of the coil frame.
  • the first armature part 21 of the L-shaped armature 2 is rotatably matched with the L-shaped yoke 3 by taking the other end of the magnetic steel 4 as a pivoting support point, so as to realize a seesaw movement.
  • the inner surface of the first armature portion 21 of the L-shaped armature 2 is provided with a protruding second convex portion 23 , and the second convex portion 23 is integrated with the first armature portion 21 .
  • the second convex part 23 of the first armature part 21 of the L-shaped armature 2 abuts the end face of the other end of the magnetic steel 4, so that the first armature part 21 of the L-shaped armature 2 is formed by the magnetic steel 4
  • the other end of the yoke is a pivoting support point, which can be swayed and matched with the L-shaped yoke 3 .
  • limit rotation shafts 24 are respectively provided on both sides of the width of the first armature portion 21 of the L-shaped armature 2 , and the limit rotation shafts 24 are used to limit the position of the L-shaped armature 2 .
  • the center line of the limiting shaft 24 intersects vertically from one end to the other end of the magnetic steel 4 and passes through the connection or extension line of the rotating support point; as shown in FIG.
  • a fourth convex portion 122 extending in the direction of the first armature portion 21 of the L-shaped armature 2 is provided with a concave corresponding to the limiting shaft 24 of the first armature portion 21 of the L-shaped armature 2 .
  • the groove 124 , the limiting shaft 24 of the L-shaped armature 2 is rotatably fitted in the groove 124 of the fourth protrusion 122 of the coil former 12 .
  • the best effect is to make the center line of the limiting shaft coincide with the rotation support point.
  • the groove 124 of the fourth convex portion 122 of the coil former 12 is in contact with and matched with the limiting shaft 24 of the L-shaped armature 2 in an arc shape.
  • the rotating shaft 24 of the L-shaped armature 2 is integrally formed on the fifth convex portions on both sides of the width of the first armature portion 21 of the L-shaped armature 2 .
  • the magnetic circuit structure is in a state.
  • the magnetic steel 4 forms two parallel magnetic circuits through the magnetic steel magnetic circuit S1 and the magnetic steel magnetic circuit S2, wherein the magnetic steel magnetic circuit S1
  • the upper working air gap is smaller than the lower working air gap of the magnetic steel magnetic circuit S2, the magnetic resistance of the magnetic steel magnetic circuit S1 is the smallest, and the magnetic flux is the largest, so the armature 2 remains in the state of Figure 6; when it needs to switch to another state, right
  • the magnetic flux of the coil magnetic circuit S3 superimposes with the magnetic flux of the magnetic steel magnetic circuit S2 in the lower working air gap, and weakens each other with the magnetic steel magnetic circuit S1; when the magnetic flux in the lower working air gap is greater than When the magnetic flux in the upper working air gap, the armature 2 is switched to the state of Figure 7.
  • a magnetic latching relay of the present disclosure includes a base 5 , a static spring portion 6 , a moving spring portion 7 , a push card 8 and the above-mentioned snap-type bistable magnetic circuit structure.
  • the state magnetic circuit structure, the static spring part 6, and the moving spring part 7 are respectively mounted on the base 5, and the push card 8 is connected to the first armature part 21 of the L-shaped armature 2 of the snap-type bistable magnetic circuit structure and the moving spring part.
  • the base 5 and the coil former 12 are integral parts of injection molding, and the base 5 is provided with a through hole 51 for inserting the L-shaped armature; as shown in Figure 9 , the push card 8 is connected between the first armature part 21 of the L-shaped armature 2 and the moving spring piece 71 of the moving spring part 7, and seven seventh
  • the convex part 25 and the seventh convex part 25 are arranged above the limiting shaft 24 , and the seventh convex part 25 of the L-shaped armature 2 is used to cooperate with the push card 8 to drive the push card 8 to move.
  • the L-shaped yoke 3 is directly inserted into the core mounting hole 121 of the coil frame from top to bottom using the first yoke portion 31, and the magnetic steel 4 can also be directly inserted into the magnetic steel mounting hole 123 of the coil frame.
  • the shaped armature 2 can be directly installed into the base and the coil frame from top to bottom, and does not need to be riveted as in the related art, and the armature part needs to be integrally injection-molded.
  • a snap-fit type bistable magnetic circuit structure and magnetic latching relay of the present disclosure adopts a coil 1, an L-shaped armature 2, an L-shaped yoke 3 and a magnetic steel 4 to form a snap-fit type bistable magnetic circuit structure , except for the coil, there are only three parts, and the assembly between the three parts is quite convenient, there is no need to riveted the yoke and the iron core as in the related art, and there is no need to inject the armature part as a whole as in the related art, especially The asymmetry of the part structure is adopted, which makes the processing of the parts simpler, not only reduces the number of parts, but also reduces the processing procedure, and has the characteristics of simple product structure and processing technology, low production cost and convenient assembly.
  • a snap-type bistable magnetic circuit structure and a magnetic latching relay of the present disclosure differ from the first embodiment in that there is no setting on the inner side of the first armature part 21 of the L-shaped armature 2 .
  • the second convex part is a first convex part 41 protruding on the end face of the other end of the magnetic steel 4.
  • the first convex part 41 is integrally formed with the magnetic steel 4, and the first convex part 41 of the magnetic steel 4 is formed. Abutting on the inner side of the first armature part 21 of the L-shaped armature 2, the first armature part 21 of the L-shaped armature 2 can swing with the L-shaped yoke with the other end of the magnetic steel 4 as the rotation support point. 3 match.
  • a snap-type bistable magnetic circuit structure and a magnetic latching relay of the present disclosure differ from the first embodiment in that there is no setting on the inner side of the first armature part 21 of the L-shaped armature 2 .
  • a magnetic conductive member 42 is also installed between the other end of the magnetic steel 4 and the first armature part 21 of the L-shaped armature 2 .
  • the end of the armature part 21 that is in contact is provided with a protruding third convex part 421.
  • the third convex part 421 is integrally formed with the magnetic conductive member 42, so that the first armature part 21 of the L-shaped armature 2 is provided with the magnetic conductive part 21.
  • the corresponding end of the piece 42 is a pivoting support point and is swivelably matched with the L-shaped yoke 3 .
  • a snap-type bistable magnetic circuit structure and a magnetic latching relay of the present disclosure differ from the first embodiment in that the first armature portion 21 of the L-shaped armature 2 is also partially covered There is a plastic part 26 , and the rotating shaft of the L-shaped armature 2 is integrally formed on the plastic part 26 , and the sixth convex parts 27 on both sides corresponding to the width of the first armature part 21 of the L-shaped armature 2 are integrally formed. .
  • a snap-type bistable magnetic circuit structure and a magnetic latching relay of the present disclosure differ from the first embodiment in that the first armature portion 21 of the L-shaped armature 2 and the magnetic steel 4 There is a preset second gap H3 between the other ends of the L-shaped armature 2; at both sides of the L-shaped armature 2 in the width direction, and corresponding to the extension line of the connection from one end of the magnetic steel 4 to the other end There are also rotating shafts 28 respectively, so as to use the rotating shafts 28 to realize the seesaw-type movement of the L-shaped armature 2;
  • the support portion 125 in this embodiment is a semi-closed shaft sleeve.
  • the rotating shaft 28 is directly arranged on the L-shaped armature 2 , or a part of the first armature part 21 of the L-shaped armature 2 is covered with a plastic part, and the rotating shaft 28 is integrally formed by the plastic part.
  • a snap-type bistable magnetic circuit structure and a magnetic latching relay of the present disclosure differ from the first embodiment in that the first armature portion 21 of the L-shaped armature 2 is also connected to A compression spring 9 , the first armature part 21 of the L-shaped armature 2 is connected to the coil former 12 through the compression spring 9 . That is, in this embodiment, the compression spring 9 is used to replace the limit rotation shaft, so as to limit the position of the L-shaped armature 2 .
  • the compression spring 9 includes a main body 91 and fins 92 which are bent from both sides of the main body 91 and protrude toward one of them.
  • the side of the armature part 21 facing away from the first yoke part 31 of the L-shaped yoke 3 is provided with a convex bud 291 protruding outward, and the main body 91 is provided with a first clamping hole 911 .
  • the first clamping hole 911 of the sheet body 91 is matched with the convex bract 291 of the first armature part 21 of the L-shaped armature 2;
  • the frame 12 is connected.
  • the main body 91 of the compression spring 9 is flexible, so as to ensure that the first armature part 21 of the L-shaped armature 2 can perform a seesaw movement after the compression spring 9 is connected to the first armature part 21 of the L-shaped armature 2 .
  • the fins 92 of the compression spring 9 are provided with second clamping holes 921 , and the corresponding positions of the coil former 12 are provided with clamping blocks 126 .
  • the second clamping hole 921 of 92 is engaged with the clamping block 126 of the coil former 12 .
  • the second clamping hole 921 of the fin 92 of the compression spring 9 is elongated, and a card 922 is provided on one side of the second clamping hole 921; as shown in FIGS. 16 and 17 , the clamping block 126
  • the side of the main body 91 facing the compression spring 9 is provided with an inclined surface 1261, and the side of the clamping block 126 facing away from the main body 91 of the compression spring 9 is set as a straight surface 1262;
  • the card 922 is matched with the straight surface 1262 of the card block 126 .
  • the side of the first armature portion 21 of the L-shaped armature 2 facing away from the first yoke portion 31 of the L-shaped yoke 3 is provided with a concave portion 292 .
  • the compression spring 9 is provided with an elastic tongue 93 corresponding to the recessed portion 292 , and the elastic tongue 93 of the compression spring 9 abuts in the recessed portion 292 of the first armature portion 21 of the L-shaped armature 2 .

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Abstract

提供一种拍合式双稳态磁路结构及磁保持继电器，磁路结构包括线圈(1)、L形衔铁(2)、L形轭铁(3)和磁钢(4)；L形衔铁(2)旋转180度后配置在L形轭铁(3)的侧边并共同围成框形形状的轮廓，在框形的两相对的对角处，L形衔铁(2)与L形轭铁(3)的相接处设有预置的第一间隙；L形轭铁(3)包括形成L形的第一轭铁部(31)和第二轭铁部(32)，线圈(1)配合在L形轭铁(3)的第一轭铁部(31)，磁钢(4)的一端与L形轭铁(3)的第一轭铁部(31)相接；L形衔铁(2)包括形成L形的第一衔铁部(21)和第二衔铁部(22)，第一衔铁部(21)配合在磁钢(4)的另一端进行翘翘板式运动，从而在磁钢(4)和零件结构不对称的L形衔铁(2)、L形轭铁(3)之间形成双稳态磁路，并利用线圈(4)的激励实现双稳态磁路的两种稳定状态之间的切换。

Description

一种拍合式双稳态磁路结构及磁保持继电器
交叉引用
本公开要求于2021年1月15日提交的申请号为202110054313.5、名称为“一种拍合式双稳态磁路结构及磁保持继电器”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及继电器技术领域，特别是涉及一种拍合式双稳态磁路结构及磁保持继电器。
背景技术
双稳态磁路结构是在磁路结构中加入磁钢，利用磁钢，在继电器的动静触点断开和闭合的状态形成双向磁场回路，由磁场回路对动组件(比如衔铁)的动作产生保持力的作用进而实现继电器的动静触点断开和闭合的保持状态，线圈仅在动静触点断开和闭合的瞬间激励，线圈无需加电保持，具有较好的节能效果。
图1为相关技术的一种拍合式双稳态磁路结构的示意图，如图1所示，这种拍合式双稳态磁路结构包括线圈架101、漆包线102、铁芯103、两个轭铁104和衔铁部分105；漆包线102缠绕在线圈架101上，铁芯103装在线圈架101的铁芯安装孔中，两个轭铁104各自的一端分别与铁芯103的两端相固定，两个轭铁104的各自的另一端则分别用来与衔铁部分105相配合，衔铁部分105通过整体注塑成型，包含两个衔铁106和一个磁钢，其中磁钢处于两个衔铁106之间并被包覆在塑料件107内，两个衔铁106的两端则分别伸出在塑料件107外，形成一个工字型形状的整体件，两个轭铁104的另一端分别配合在工字型的整体件的两边的凹口内，衔铁部分105的中间设置为可转动，在衔铁部分105转动时，衔铁部分105的两侧的伸出的衔铁106与轭铁104拍合式相配合。这种拍合式双稳态磁路结构除线圈外包含了8个零件，而且组装过程中，轭铁104、铁芯103需要铆接，衔铁部分105需要整体注塑，整个磁路结构的组装、成型过程比较复杂；另外为了确保动作、复归电压基本相等，继电器的动静触点在断开、闭合状态下的抗冲击能力基本相同，磁路结构要做成对称结构，即衔铁部分105要制成对称结构，轭铁104也要设计成对称结构，通过对称结构来保证动作和复归时两边的线圈通电后的力臂相同，从而保证动作和复归时两 边绕支点的旋转力矩相同；为此，造成了产品结构复杂、零件多、加工工艺复杂、制作成本高和装配繁锁的弊端。
发明内容
本公开的目的在于克服相关技术之不足，提供一种拍合式双稳态磁路结构及磁保持继电器，通过结构改进，既减少了零件数量，也减少了加工工序，具有产品结构和加工工艺简单，制作成本低以及装配便利的特点。
根据本公开的一个方面，提供一种拍合式双稳态磁路结构，包括线圈、一个L形衔铁、一个L形轭铁和一个磁钢；所述L形衔铁旋转180度后配置在L形轭铁的侧边并共同围成框形形状的轮廓，在框形的两相对的对角处，L形衔铁与L形轭铁的相接处分别设有预置的第一间隙；L形轭铁包括形成L形的第一轭铁部和第二轭铁部，所述线圈配合在L形轭铁的第一轭铁部，所述磁钢的一端与所述L形轭铁的第一轭铁部相接；L形衔铁包括形成L形的第一衔铁部和第二衔铁部，第一衔铁部配合在磁钢的另一端进行翘翘板式运动，从而在磁钢和零件结构不对称的L形衔铁、L形轭铁之间形成双稳态磁路，并利用线圈的激励实现双稳态磁路的两种稳定状态之间的切换。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部与所述L形轭铁的第一轭铁部分别处在所述框形形状的两相对的边；所述磁钢的一端在L形衔铁与L形轭铁所围成的框形形状的内部与所述L形轭铁的第一轭铁部垂直相接，且所述磁钢的两端端面为磁极面。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部的末端的内侧面与所述L形轭铁的第二轭铁部的端面相对应，所述L形轭铁的第一轭铁部的末端的内侧面与所述L形衔铁的第二衔铁部的端面相对应。
根据本公开的示例性实施方式，所述双稳态磁路由经过磁钢、L形衔铁的第一衔铁部的一段、L形轭铁的第二轭铁部、L形轭铁的第一轭铁部的一段的第一磁回路和经过磁钢、L形衔铁的第一衔铁部的另一段、L形衔铁的第二衔铁部、L形轭铁的第一轭铁部的另一段的第二磁回路构成。
根据本公开的示例性实施方式，所述双稳态磁路中，在所述L形衔铁的第一衔铁部的末端的内侧面与所述L形轭铁的第二轭铁部的端面相贴而使得框形的两相对的对角处的其中一个对角处的第一间隙小于另一对角处的第一间隙时，所述L形衔铁处于一种稳定状态中；在所述L形轭铁的第一轭铁部的末端的内侧面与所述L形衔铁的第二衔铁部的端面 相贴而使得框形的两相对的对角处的所述另一对角处的第一间隙小于所述一个对角处的第一间隙时，所述L形衔铁处于另一个稳定状态中。
根据本公开的示例性实施方式，所述磁钢处在所述L形轭铁的第一轭铁部的中间与所述L形衔铁的第一衔铁部的中间之间。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部的长度尺寸大于所述L形衔铁的第二衔铁部的长度尺寸；所述L形轭铁的第一轭铁部的长度尺寸大于所述L形轭铁的第二轭铁部的长度尺寸。
根据本公开的示例性实施方式，所述线圈包括线圈架和缠绕在线圈架的绕线窗口的漆包线，所述L形轭铁的第一轭铁部插装在线圈架的铁芯安装孔中，所述线圈架的绕线窗口的中部设有朝向所述L形衔铁的第一衔铁部的磁钢安装孔，所述磁钢安装孔与所述铁芯安装孔相连通，所述磁钢适配在所述线圈架的磁钢安装孔中。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部以磁钢的另一端为转动支撑点可摆动地与L形轭铁相配合，从而实现翘翘板式运动。
根据本公开的示例性实施方式，所述磁钢的另一端的端面设有凸伸的第一凸部，所述第一凸部与所述磁钢一体成型，所述磁钢的第一凸部抵在所述L形衔铁的第一衔铁部的内侧面，使所述L形衔铁的第一衔铁部以磁钢的另一端为转动支撑点可摆动地与L形轭铁相配合。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部的内侧面设有凸伸的第二凸部，所述第二凸部与所述第一衔铁部一体成型，所述L形衔铁的第一衔铁部的第二凸部抵在所述磁钢的另一端的端面，使所述L形衔铁的第一衔铁部以磁钢的另一端为转动支撑点可摆动地与L形轭铁相配合。
根据本公开的示例性实施方式，所述磁钢的另一端与所述L形衔铁的第一衔铁部之间还装有导磁件，所述导磁件中与L形衔铁的第一衔铁部相接的一端设有凸伸的第三凸部，所述使所第三凸部与所述导磁件一体成型，述L形衔铁的第一衔铁部以所述导磁件的对应端为转动支撑点可摆动地与L形轭铁相配合。
根据本公开的示例性实施方式，在L形衔铁的第一衔铁部的宽度的两侧边分别设有限位转轴，且限位转轴的中心线垂直相交于磁钢的一端至另一端并经过所述转动支撑点的连线或延长线；所述线圈架设有向所述L形衔铁的第一衔铁部方向延伸的第四凸部，所述第四凸部设有适配于所述L形衔铁的第一衔铁部的限位转轴的凹槽，所述L形衔铁的限位转轴可转动地限位配合在所述线圈架的第四凸部的凹槽中。
根据本公开的示例性实施方式，所述限位转轴的中心线与所述转动支撑点相重合。
根据本公开的示例性实施方式，所述线圈架的第四凸部的凹槽与所述L形衔铁的限位转轴呈圆弧形配合。
根据本公开的示例性实施方式，所述L形衔铁的转轴为一体成型在L形衔铁的第一衔铁部的宽度的两侧边的第五凸部。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部还部分包覆有塑料件，所述L形衔铁的转轴为一体成型在所述塑料件上的对应于所述L形衔铁的第一衔铁部的宽度的两侧边的第六凸部。
根据本公开的示例性实施方式，在L形衔铁的第一衔铁部还连接一压簧，所述L形衔铁的第一衔铁部通过压簧与所述线圈架相连接。
根据本公开的示例性实施方式，所述压簧包括主片体和翼片，所述翼片由主片体的两边弯折并向其中一面凸伸，所述L形衔铁的第一衔铁部的背向所述L形轭铁的第一轭铁部的一面向外凸伸设有凸苞，所述主片体设有第一卡孔，所述主片体的第一卡孔与所述L形衔铁的第一衔铁部的凸苞对应相配合；所述压簧的翼片伸向所述线圈架，并与线圈架相连接。
根据本公开的示例性实施方式，所述压簧的翼片设有第二卡孔，所述线圈架的对应位置设有卡块，所述压簧的翼片的第二卡孔与所述线圈架的卡块卡置相配合。
根据本公开的示例性实施方式，所述压簧的翼片的第二卡孔为长条形，第二卡孔的一边设有卡片；所述卡块的朝向压簧的主片体的一侧设有斜面，所述卡块的背向压簧的主片体的一侧设为直面；所述第二卡孔的卡片与所述卡块的直面相配合。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部的背向所述L形轭铁的第一轭铁部的一面设有凹陷部，所述压簧对应于所述凹陷部设有弹性舌片，所述压簧的弹性舌片抵在所述L形衔铁的第一衔铁部的凹陷部中。
根据本公开的示例性实施方式，所述L形衔铁的第一衔铁部与磁钢的另一端之间设有预置的第二间隙；在所述L形衔铁的宽度方向上的两侧边，并对应在由磁钢的一端至另一端的连线的延长线处，还分别设有转动轴，以利用该转动轴实现翘翘板式运动；所述线圈架设有对L形衔铁的转动轴进行支撑的支撑部。
根据本公开的另一方面，提供一种磁保持继电器，包括底座、静簧部分、动簧部分、推动卡和上述的拍合式双稳态磁路结构，所述拍合式双稳态磁路结构和静簧部分、动簧部分分别装在底座上，所述推动卡连接在拍合式双稳态磁路结构的L形衔铁的第一衔铁部与 动簧部分的动簧片之间。
根据本公开的示例性实施方式，所述底座与所述拍合式双稳态磁路结构的线圈的线圈架为一体注塑成型的整体件；所述底座还设有便于装入L形衔铁的通孔。
与相关技术相比较，本公开的有益效果是：
本公开由于采用了线圈、一个L形衔铁、一个L形轭铁和一个磁钢来组成拍合式双稳态磁路结构，除线圈外只有三个零件，且三个零件之间的装配相当便利，无须如相关技术一样需要对轭铁、铁芯进行铆接连接，也无须如相关技术一样需要将衔铁部分整体注塑，特别是采用L形衔铁和L形轭铁的零件结构的不对称，也能形成对称的旋转力矩，解决了传统双稳态磁路结构用对称结构带来的弊端，使得零件加工更加简单，既减少了零件数量，也减少了加工工序，具有产品结构和加工工艺简单，制作成本低以及装配便利的特点。
以下结合附图及实施例对本公开作进一步详细说明；但本公开的一种拍合式双稳态磁路结构及磁保持继电器不局限于实施例。
附图说明
图1是相关技术的一种拍合式双稳态磁路结构的示意图。
图2是本公开的实施例一的拍合式双稳态磁路结构的剖视图。
图3是本公开的实施例一的拍合式双稳态磁路结构(衔铁、轭铁、磁钢和线圈未装配状态)的剖视图。
图4是本公开的实施例一的线圈的结构示意图。
图5是本公开的实施例一的拍合式双稳态磁路结构的设计状态示意图。
图6是本公开的实施例一的拍合式双稳态磁路结构在一种状态的磁路示意图。
图7是本公开的实施例一的拍合式双稳态磁路结构在另一种状态的磁路示意图。
图8是本公开的实施例一的L形衔铁的立体构造示意图。
图9是本公开的实施例一的磁保持继电器(未含外壳)的立体构造示意图。
图10是本公开的实施例一的磁保持继电器的立体构造分解示意图。
图11是本公开的实施例一的磁保持继电器的结构剖视图。
图12是本公开的实施例二的拍合式双稳态磁路结构的简易示意图。
图13是本公开的实施例三的拍合式双稳态磁路结构的简易示意图。
图14是本公开的实施例四的L形衔铁的立体构造示意图。
图15是本公开的实施例五的拍合式双稳态磁路结构的简易示意图。
图16是本公开的实施例六的拍合式双稳态磁路结构的立体构造示意图。
图17是本公开的实施例六的拍合式双稳态磁路结构的侧视图。
图18是本公开的实施例六的拍合式双稳态磁路结构的构造分解示意图。
图19是本公开的实施例六的拍合式双稳态磁路结构的压簧与L形衔铁的配合示意图。
图20是本公开的实施例六的拍合式双稳态磁路结构的L形衔铁的立体构造示意图。
图21是本公开的实施例六的拍合式双稳态磁路结构的压簧的立体构造示意图。
具体实施方式
实施例一
参见图2至图8所示，本公开的一种拍合式双稳态磁路结构，包括线圈1、一个L形衔铁2、一个L形轭铁3和一个磁钢4；L形轭铁3包括第一轭铁部31和第二轭铁部32，第一轭铁部31和第二轭铁部32形成L形。其中，第一轭铁部31呈竖向设置，L形轭铁3的第二轭铁部32呈水平设置，且L形轭铁3的第二轭铁部32处于上部；所述L形衔铁2旋转180度后配置在L形轭铁3的侧边，即L形衔铁2以L形的竖直边为轴旋转180度后的状态，并与L形轭铁3共同围成框形形状的轮廓，即L形衔铁2包括第一衔铁部21和第二衔铁部22，第一衔铁部21呈竖向设置，L形衔铁2第二衔铁部22呈水平设置，且L形衔铁2的第二衔铁部22处于下部；在框形的两相对的对角处，L形衔铁2与L形轭铁3的相接处设有预置的第一间隙，即上部间隙H1和下部间隙H2(如图5所示)，在工作时，上述第一间隙能够发生变化，在工作状态下的第一间隙也可称为工作气隙；所述线圈1配合在L形轭铁3的L形的其中一边即竖向设置的第一轭铁部31，所述磁钢4的一端与所述L形轭铁3的第一轭铁部31相接；L形衔铁2的L形的其中竖向设置的第一衔铁部21配合在磁钢4的另一端进行翘翘板式运动，从而在磁钢4和零件结构不对称的L形衔铁2、L形轭铁3之间形成双稳态磁路，并利用线圈的激励实现双稳态磁路的两种稳定状态之间的切换，即L形衔铁2的两端在线圈1的激励下实现拍合式动作。在设计状态时(如图5所示)，L形衔铁2和L形轭铁3形成一个框形形状的轮廓，框形的两相对的对角处必须设有上部间隙H1和下部间隙H2，这样，L形衔铁2才能进行翘翘板式运动，在理想状态下，由于上部间隙H1和下部间隙H2相同，L形衔铁2在平衡状态，L形衔铁2与L形轭铁3之间有两处间隙，但是在装配时，难以做到上部间隙H1和下部间隙H2相同，因此，在L形衔铁2装入后，由于装 配时所造成的上部间隙H1和下部间隙H2的不相同，受磁钢的作用，L形衔铁2与L形轭铁3之间只会存在一处更大的间隙(即上部间隙H1和下部间隙H2之和)，而原来所设计的另一个间隙将会在消失，使得L形衔铁2与L形轭铁3之间只有一个大间隙。
本实施例中，所述L形衔铁2的第一衔铁部21与所述L形轭铁3的第一轭铁部31分别处在所述框形形状的两相对的边；所述磁钢4的一端在L形衔铁与L形轭铁所围成的框形形状的内部与所述L形轭铁3的第一轭铁部31垂直相接，在设计状态时(如图5所示)，磁钢4是分别与所述L形衔铁2的第一衔铁部21和所述L形轭铁3的第一轭铁部31相互垂直，且所述磁钢4的两端端面为磁极面，磁钢4靠向L形轭铁3的第一轭铁部31的一面为N极，磁钢4靠向L形衔铁2的第一衔铁部21的一面为S极(如图6、图7所示)。
本实施例中，所述L形衔铁2的第一衔铁部21的末端的内侧面与所述L形轭铁3的第二轭铁部32的端面相对应，所述L形轭铁3的第一轭铁部31的末端的内侧面与所述L形衔铁2的第二衔铁部22的端面相对应。
本实施例中，所述双稳态磁路由经过磁钢4、L形衔铁2的第一衔铁部21的一段、L形轭铁3的第二轭铁部32、L形轭铁3的第一轭铁部31的一段的第一磁回路和经过磁钢4、L形衔铁2的第一衔铁部21的另一段、L形衔铁2的第二衔铁部22、L形轭铁3的第一轭铁部31的另一段的第二磁回路构成。
本实施例中，所述双稳态磁路中，在所述L形衔铁2的第一衔铁部21的末端的内侧面与所述L形轭铁3的第二轭铁部32的端面相贴而使得框形的两相对的对角处的其中一个对角处的工作气隙小于另一对角处的工作气隙时(如图6所示的上部间隙H1小于下部间隙H2)，所述L形衔铁2处于一种稳定状态中；在所述L形轭铁3的第一轭铁部31的末端的内侧面与所述L形衔铁2的第二衔铁部22的端面相贴而使得框形的两相对的对角处的所述另一对角处的工作气隙小于所述一个对角处的工作气隙时(如图7所示的下部间隙H2小于上部间隙H1)，所述L形衔铁2处于另一个稳定状态中。L形衔铁2的第一衔铁部21的末端的内侧面和L形轭铁3的第二轭铁部32的端面为相互配合的工作极面，如图5和图6所示，本实施例是将L形衔铁2的第一衔铁部21的末端的内侧面设为一定的倾斜面，以实现与L形轭铁3的第二轭铁部32的端面吻合贴合，当然，也可以是将L形轭铁3的第二轭铁部32的端面设成斜面；同样的，L形轭铁3的其中第一轭铁部31的末端的内侧面和所述L形衔铁2的第二衔铁部22的端面也是相互配合的工作极面，其中一个设成斜面以便于配合。
本实施例中，所述磁钢4处在所述L形轭铁3的第一轭铁部31的中间部位与所述L形衔铁2的第一衔铁部21的中间部位之间。
本实施例中，所述L形衔铁2的L形的其中一边(第一衔铁部21)的长度尺寸大于所述L形衔铁2的L形的另一边(第二衔铁部22)的长度尺寸，即如图5所示，第一衔铁部21在竖直方向的长度尺寸大于第二衔铁部22在水平方向的长度尺寸；所述L形轭铁3的L形的其中一边(第一轭铁部31)的长度尺寸大于所述L形轭铁3的L形的另一边(第二轭铁部32)的长度尺寸，即如图5所示，第一轭铁部31在竖直方向的长度尺寸大于第二轭铁部32在水平方向的长度尺寸。
本实施例中，所述线圈1包括线圈架12和缠绕在线圈架的绕线窗口的漆包线11，所述L形轭铁3的第一轭铁部31插装在线圈架12的铁芯安装孔121中，所述线圈架12的绕线窗口的中部设有朝向所述L形衔铁2的第一衔铁部21的磁钢安装孔123，所述磁钢安装孔123与所述铁芯安装孔121相连通，所述磁钢4适配在所述线圈架的磁钢安装孔123中。
本实施例中，所述L形衔铁2的第一衔铁部21以磁钢4的另一端为转动支撑点可摆动地与L形轭铁3相配合，从而实现翘翘板式运动。
本实施例中，如图5所示，所述L形衔铁2的第一衔铁部21的内侧面设有凸伸的第二凸部23，且第二凸部23与第一衔铁部21一体成型，所述L形衔铁2的第一衔铁部21的第二凸部23抵在所述磁钢4的另一端的端面，使所述L形衔铁2的第一衔铁部21以磁钢4的另一端为转动支撑点可摆动地与L形轭铁3相配合。
本实施例中，如图8所示，在L形衔铁2的第一衔铁部21的宽度的两侧边分别设有限位转轴24，限位转轴24用来对L形衔铁2进行限位，且限位转轴24的中心线垂直相交于磁钢4的一端至另一端并经过所述转动支撑点的连线或延长线；如图4所示，所述线圈架12设有向所述L形衔铁2的第一衔铁部21的方向延伸的第四凸部122，所述第四凸部122设有适配于所述L形衔铁2的第一衔铁部21的限位转轴24的凹槽124，所述L形衔铁2的限位转轴24可转动地配合在所述线圈架12的第四凸部122的凹槽124中。最好的效果是将限位转轴的中心线与所述转动支撑点相重合。
本实施例中，所述线圈架12的第四凸部122的凹槽124与所述L形衔铁2的限位转轴24以圆弧形接触并配合。
本实施例中，所述L形衔铁2的转轴24为一体成型在L形衔铁2的第一衔铁部21的宽度的两侧边的第五凸部。
参见图6所示，磁路结构处于一种状态，在线圈没通电励磁时，磁钢4通过磁钢磁回路S1和磁钢磁回路S2形成两个并联的磁回路，其中磁钢磁回路S1的上部工作气隙小于磁钢磁回路S2的下部工作气隙，磁钢磁回路S1的磁阻最小，磁通量最大，所以衔铁2保持在图6状态；当需要切换至另一种状态时，对线圈施加一个方向的激励，线圈磁回路S3的磁通、在下部工作气隙中与磁钢磁回路S2的磁通叠加，与磁钢磁回路S1相互削弱；当下部工作气隙中的磁通量大于上部工作气隙中的磁通量时，衔铁2切换为图7状态，在线圈激励去除后，此时磁钢磁回路S2磁阻最小，磁通量最大，衔铁2保持在图7状态；当需要切换回图6所示状态时，对线圈施加一个反方向的激励，线圈磁回路S3的磁通在上部工作气隙中与磁钢磁回路S1的磁通叠加，与磁钢磁回路S2相互削弱；当上部工作气隙中的磁通量大于下部工作气隙中的磁通量时，衔铁2切换回图6状态，在线圈激励去除后，此时磁钢磁回路S1的磁阻最小，磁通量最大，衔铁2保持在图6状态。
参见图2至图11所示，本公开的一种磁保持继电器，包括底座5、静簧部分6、动簧部分7、推动卡8和上述拍合式双稳态磁路结构，拍合式双稳态磁路结构和静簧部分6、动簧部分7分别装在底座5上，推动卡8连接在拍合式双稳态磁路结构的L形衔铁2的第一衔铁部21与动簧部分的动簧片之间；其中，如图10所示，底座5和线圈架12为一体注塑成型的整体式零件，在底座5设有便于装入L形衔铁的通孔51；如图9所示，推动卡8连接在L形衔铁2的第一衔铁部21与动簧部分7的动簧片71之间，在L形衔铁2的第一衔铁部21的宽度的两侧边设有第七凸部25，第七凸部25设在限位转轴24的上方，L形衔铁2的第七凸部25用来与推动卡8相配合，从而带动推动卡8动作。装配时，L形轭铁3利用第一轭铁部31直接从上向下插入线圈架的铁芯安装孔121中，磁钢4也可以直接插入线圈架的磁钢安装孔123中，而L形衔铁2则可以从上向下直接装入底座和线圈架中，不需要如相关技术一样，轭铁、铁芯需要铆接，衔铁部分需要整体注塑。
本公开的一种拍合式双稳态磁路结构及磁保持继电器，采用了线圈1、一个L形衔铁2、一个L形轭铁3和一个磁钢4来组成拍合式双稳态磁路结构，除线圈外只有三个零件，且三个零件之间的装配相当便利，无须如相关技术一样需要对轭铁、铁芯进行铆接连接，也无须如相关技术一样需要将衔铁部分整体注塑，特别是采用零件结构的不对称，使得零件加工更加简单，既减少了零件数量，也减少了加工工序，具有产品结构和加工工艺简单，制作成本低以及装配便利的特点。
实施例二
参见图12所示，本公开的一种拍合式双稳态磁路结构及磁保持继电器，与实施例一的不同之处在于，在L形衔铁2的第一衔铁部21的内侧面没有设第二凸部，而是在磁钢4的另一端的端面设有凸伸的第一凸部41，第一凸部41与磁钢4一体成型，所述磁钢4的第一凸部41抵在所述L形衔铁2的第一衔铁部21的内侧面，使所述L形衔铁2的第一衔铁部21以磁钢4的另一端为转动支撑点可摆动地与L形轭铁3相配合。
实施例三
参见图13所示，本公开的一种拍合式双稳态磁路结构及磁保持继电器，与实施例一的不同之处在于，在L形衔铁2的第一衔铁部21的内侧面没有设第二凸部，所述磁钢4的另一端与所述L形衔铁2的第一衔铁部21之间还装有导磁件42，所述导磁件42中与L形衔铁的第一衔铁部21相接的一端设有凸伸的第三凸部421，该第三凸部421与导磁件42一体成型，使所述L形衔铁2的第一衔铁部21以所述导磁件42的对应端为转动支撑点可摆动地与L形轭铁3相配合。
实施例四
参见图14所示，本公开的一种拍合式双稳态磁路结构及磁保持继电器，与实施例一的不同之处在于，所述L形衔铁2的第一衔铁部21还部分包覆有塑料件26，所述L形衔铁2的转轴为一体成型在所述塑料件26上的对应于所述L形衔铁2的第一衔铁部21的宽度的两侧边的第六凸部27。
实施例五
参见图15所示，本公开的一种拍合式双稳态磁路结构及磁保持继电器，与实施例一的不同之处在于，所述L形衔铁2的第一衔铁部21与磁钢4的另一端之间设有预置的第二间隙H3；在所述L形衔铁2的宽度方向上的两侧边处，并对应于由磁钢4的一端至另一端的连线的延长线处，还分别设有转动轴28，以利用该转动轴28实现L形衔铁2的翘翘板式运动；所述线圈架12设有对L形衔铁2的转动轴28进行支撑的支撑部125，本实施例的支撑部125为半封闭的轴套。
本实施例是将转动轴28直接设在L形衔铁2上，也可以是在L形衔铁2的第一衔铁部21的一部分包覆有塑料件，由塑料件一体成型出转动轴28。
实施例六
参见图16至图21所示，本公开的一种拍合式双稳态磁路结构及磁保持继电器，与实施例一的不同之处在于，在L形衔铁2的第一衔铁部21还连接一压簧9，所述L形 衔铁2的第一衔铁部21通过压簧9与所述线圈架12相连接。即本实施例是利用压簧9来取代限位转轴，实现对L形衔铁2的位置进行限位。
本实施例中，如图18所示，所述压簧9包括主片体91和由主片体91的两边弯折且向其中一面凸伸的翼片92，所述L形衔铁2的第一衔铁部21的背向所述L形轭铁3的第一轭铁部31的一面向外凸伸设有凸苞291，所述主片体91设有第一卡孔911，所述主片体91的第一卡孔911与所述L形衔铁2的第一衔铁部21的凸苞291对应相配合；所述压簧9的翼片92伸向所述线圈架12，并与线圈架12相连接。压簧9的主片体91为柔性，这样才能保证压簧9与L形衔铁2的第一衔铁部21连接后，L形衔铁2的第一衔铁部21能够进行翘翘板运动。
本实施例中，如图18所示，所述压簧9的翼片92设有第二卡孔921，所述线圈架12的对应位置设有卡块126，所述压簧9的翼片92的第二卡孔921与所述线圈架12的卡块126卡置相配合。
本实施例中，所述压簧9的翼片92的第二卡孔921为长条形，第二卡孔921的一边设有卡片922；如图16和17所示，所述卡块126的朝向压簧9的主片体91的一侧设有斜面1261，所述卡块126的背向压簧9的主片体91的一侧设为直面1262；所述第二卡孔921的卡片922与所述卡块126的直面1262相配合。
本实施例中，如图18所示，所述L形衔铁2的第一衔铁部21的背向所述L形轭铁3的第一轭铁部31的一面设有凹陷部292，所述压簧9对应于所述凹陷部292设有弹性舌片93，所述压簧9的弹性舌片93抵在所述L形衔铁2的第一衔铁部21的凹陷部292中。
上述只是本公开的较佳实施例，并非对本公开作任何形式上的限制。虽然本公开已以较佳实施例揭露如上，然而并非用以限定本公开。任何熟悉本领域的技术人员，在不脱离本公开技术方案范围的情况下，都可利用上述揭示的技术内容对本公开技术方案作出许多可能的变动和修饰，或修改为等同化的等效实施例。因此，凡是未脱离本公开技术方案的内容，依据本公开技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均应落在本公开技术方案保护的范围内。

Claims (25)

  1. 一种拍合式双稳态磁路结构，包括线圈、一个L形衔铁、一个L形轭铁和一个磁钢；所述L形衔铁旋转180度后配置在所述L形轭铁的侧边并共同围成框形形状的轮廓，在所述框形的两相对的对角处，所述L形衔铁与所述L形轭铁的相接处分别设有预置的第一间隙；所述L形轭铁包括形成L形的第一轭铁部和第二轭铁部，所述线圈配合在L形轭铁的的所述第一轭铁部，所述磁钢的一端与所述L形轭铁的所述第一轭铁部相接；所述L形衔铁包括形成L形的第一衔铁部和第二衔铁部，所述第一衔铁部配合在所述磁钢的另一端进行翘翘板式运动，从而在所述磁钢和零件结构不对称的所述L形衔铁、所述L形轭铁之间形成双稳态磁路，并利用线圈的激励实现双稳态磁路的两种稳定状态之间的切换。
  2. 根据权利要求1所述的拍合式双稳态磁路结构，其中，所述L形衔铁的第一衔铁部与所述L形轭铁的第一轭铁部分别处在所述框形形状的两相对的边；所述磁钢的一端在L形衔铁与所述L形轭铁所围成的所述框形形状的内部与所述L形轭铁的第一轭铁部垂直相接，且所述磁钢的两端端面为磁极面。
  3. 根据权利要求2所述的拍合式双稳态磁路结构，其中，所述L形衔铁的第一衔铁部的末端的内侧面与所述L形轭铁的第二轭铁部的端面相对应，所述L形轭铁的第一轭铁部的末端的内侧面与所述L形衔铁的第二衔铁部端面相对应。
  4. 根据权利要求3所述的拍合式双稳态磁路结构，其中，所述双稳态磁路由经过磁钢、所述L形衔铁的第一衔铁部的一段、所述L形轭铁第二轭铁部、所述L形轭铁的第一轭铁部的一段的第一磁回路和经过磁钢、所述L形衔铁的第一衔铁部的另一段、所述L形衔铁的第二衔铁部、所述L形轭铁的第一轭铁部的另一段的第二磁回路构成。
  5. 根据权利要求4所述的拍合式双稳态磁路结构，其中，所述双稳态磁路中，在所述L形衔铁的第一衔铁部的末端的内侧面与所述L形轭铁的第二轭铁部的端面相贴而使得所述框形的两相对的对角处的其中一个对角处的第一间隙小于另一对角处的第一间隙时，所述L形衔铁处于一种稳定状态中；在所述L形轭铁的第一轭铁部的末端的内侧面与所述L形衔铁的第二衔铁部的端面相贴而使得框形的两相对的对角处的所述另一对角处的第一间隙小于所述一个对角处的第一间隙时，所述L形衔铁处于另一个稳定状态中。
  6. 根据权利要求2至5中任一项所述的拍合式双稳态磁路结构，其中，所述磁钢处在所述L形轭铁第一轭铁部的中间与所述L形衔铁的第一衔铁部的中间之间。
  7. 根据权利要求6所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述第一 衔铁部的长度尺寸大于所述L形衔铁的所述第二衔铁部的长度尺寸；所述L形轭铁的所述第一轭铁部的长度尺寸大于所述L形轭铁的所述第二轭铁部长度尺寸。
  8. 根据权利要求2所述的拍合式双稳态磁路结构，其中，所述线圈包括线圈架和缠绕在线圈架的绕线窗口的漆包线，所述L形轭铁的所述第一轭铁部插装在所述线圈架的铁芯安装孔中，所述线圈架的绕线窗口的中部设有朝向所述L形衔铁的所述第一衔铁部的磁钢安装孔，所述磁钢安装孔与所述铁芯安装孔相连通，所述磁钢适配在所述线圈架的磁钢安装孔中。
  9. 根据权利要求8所述的拍合式双稳态磁路结构，其中，所述L形衔铁的第一衔铁部以所述磁钢的另一端为转动支撑点可摆动地与所述L形轭铁相配合，从而实现翘翘板式运动。
  10. 根据权利要求9所述的拍合式双稳态磁路结构，其中，所述磁钢的另一端的端面设有凸伸的第一凸部，所述第一凸部与所述磁钢一体成型，所述磁钢的第一凸部抵在所述L形衔铁所述第一衔铁部的内侧面，使所述L形衔铁的第一衔铁部以所述磁钢的另一端为转动支撑点可摆动地与L形轭铁相配合。
  11. 根据权利要求9所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述第一衔铁部的内侧面设有凸伸的第二凸部，所述第二凸部与所述第一衔铁部一体成型，所述L形衔铁的所述第一衔铁部的第二凸部抵在所述磁钢的另一端的端面，使所述L形衔铁的第一衔铁部以所述磁钢的另一端为转动支撑点可摆动地与L形轭铁相配合。
  12. 根据权利要求9所述的拍合式双稳态磁路结构，其中，所述磁钢的另一端与所述L形衔铁的第一衔铁部之间还装有导磁件，所述导磁件中与L形衔铁的第一衔铁部相接的一端设有凸伸的第三凸部，所述第三凸部与所述导磁件一体成型，使所述L形衔铁的所述第一衔铁部以所述导磁件的对应端为转动支撑点可摆动地与L形轭铁相配合。
  13. 根据权利要求9至12中任一项所述的拍合式双稳态磁路结构，其中，在所述L形衔铁的第一衔铁部的宽度的两侧边分别设有限位转轴，且所述限位转轴的中心线垂直相交于所述磁钢的一端至另一端并经过所述转动支撑点的连线或延长线；所述线圈架设有向所述L形衔铁的所述第一衔铁部的方向延伸的第四凸部，所述第四凸部设有适配于所述L形衔铁的所述第一衔铁部的所述限位转轴的凹槽，所述L形衔铁的限位转轴可转动地限位配合在所述线圈架的所述第四凸部的所述凹槽中。
  14. 根据权利要求13所述的拍合式双稳态磁路结构，其中，所述限位转轴的中心线与所述转动支撑点相重合。
  15. 根据权利要求13所述的拍合式双稳态磁路结构，其中，所述线圈架的所述第四凸部的所述凹槽与所述L形衔铁的所述限位转轴呈圆弧形配合。
  16. 根据权利要求13所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述转轴为一体成型在所述L形衔铁的所述第一衔铁部的宽度的两侧边的第五凸部。
  17. 根据权利要求13所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述第一衔铁部还部分包覆有塑料件，所述L形衔铁的转轴为一体成型在所述塑料件上的对应于所述L形衔铁的所述第一衔铁部的宽度的两侧边的第六凸部。
  18. 根据权利要求9至12中任一项所述的拍合式双稳态磁路结构，其中，在所述L形衔铁的所述第一衔铁部还连接一压簧，所述L形衔铁的所述第一衔铁部通过所述压簧与所述线圈架相连接。
  19. 根据权利要求18所述的拍合式双稳态磁路结构，其中，所述压簧包括主片体和翼片，所述翼片由所述主片体的两边弯折并向其中一面凸伸，所述L形衔铁的所述第一衔铁部的背向所述L形轭铁的所述第一轭铁部的一面向外凸伸设有凸苞，所述主片体设有第一卡孔，所述主片体的所述第一卡孔与所述L形衔铁的所述第一衔铁部的所述凸苞对应相配合；所述压簧的翼片伸向所述线圈架，并与所述线圈架相连接。
  20. 根据权利要求19所述的拍合式双稳态磁路结构，其中，所述压簧的翼片设有第二卡孔，所述线圈架的对应位置设有卡块，所述压簧的翼片的第二卡孔与所述线圈架的卡块卡置相配合。
  21. 根据权利要求20所述的拍合式双稳态磁路结构，其中，所述压簧的翼片的第二卡孔为长条形，所述第二卡孔的一边设有卡片；所述卡块的朝向所述压簧的主片体的一侧设有斜面，所述卡块的背向所述压簧的主片体的一侧设为直面；所述第二卡孔的卡片与所述卡块的直面相配合。
  22. 根据权利要求19所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述第一衔铁部的背向所述L形轭铁的所述第一轭铁部的一面设有凹陷部，所述压簧对应于所述凹陷部设有弹性舌片，所述压簧的弹性舌片抵在所述L形衔铁的所述第一衔铁部的凹陷部中。
  23. 根据权利要求8所述的拍合式双稳态磁路结构，其中，所述L形衔铁的所述第一衔铁部与所述磁钢的另一端之间设有预置的第二间隙；在所述L形衔铁的宽度方向上的两侧边，并对应在由磁钢的一端至另一端的连线的延长线处，还分别设有转动轴，以利用该转动轴实现翘翘板式运动；所述线圈架设有对L形衔铁的转动轴进行支撑的支撑部。
  24. 一种磁保持继电器，其中，包括底座、静簧部分、动簧部分、推动卡和如权利要求1至23中任一权利要求所述的拍合式双稳态磁路结构，所述拍合式双稳态磁路结构和静簧部分、动簧部分分别装在底座上，所述推动卡连接在拍合式双稳态磁路结构的L形衔铁的第一衔铁部与动簧部分的动簧片之间。
  25. 根据权利要求24所述的磁保持继电器，其中，所述底座与所述拍合式双稳态磁路结构的线圈的线圈架为一体注塑成型的整体件；所述底座还设有便于装入L形衔铁的通孔。
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CN112885646A (zh) * 2021-01-15 2021-06-01 厦门宏发电力电器有限公司 一种拍合式双稳态磁路结构及磁保持继电器

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CN113113268A (zh) * 2021-04-08 2021-07-13 任国良 大开距高耐受磁保持继电器
CN113113268B (zh) * 2021-04-08 2024-03-26 任国良 大开距高耐受磁保持继电器

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