WO2011072504A1 - 一种继电器的衔铁与推动机构之间的连接结构 - Google Patents

一种继电器的衔铁与推动机构之间的连接结构 Download PDF

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Publication number
WO2011072504A1
WO2011072504A1 PCT/CN2010/070938 CN2010070938W WO2011072504A1 WO 2011072504 A1 WO2011072504 A1 WO 2011072504A1 CN 2010070938 W CN2010070938 W CN 2010070938W WO 2011072504 A1 WO2011072504 A1 WO 2011072504A1
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WIPO (PCT)
Prior art keywords
armature
strip
shaped
hole
blind hole
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PCT/CN2010/070938
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English (en)
French (fr)
Inventor
谭忠华
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厦门宏发电声股份有限公司
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Application filed by 厦门宏发电声股份有限公司 filed Critical 厦门宏发电声股份有限公司
Priority to DE112010004831.2T priority Critical patent/DE112010004831B4/de
Priority to US13/503,776 priority patent/US8350646B2/en
Publication of WO2011072504A1 publication Critical patent/WO2011072504A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
    • 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
    • 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

Definitions

  • the present invention relates to an electromagnetic relay, and more particularly to a connection structure between an armature of a relay and a pushing mechanism.
  • Existing electromagnetic relays generally include a contact portion, a magnetic circuit portion, and a push block.
  • the contact portion includes a normally closed static reed assembly, a normally open static reed assembly, and a movable reed assembly. By inserting these components into the base in a plug-in manner, a stable and reliable contact portion can be formed.
  • the magnetic circuit portion includes a yoke, an armature, a bobbin, and a coil winding. The contact part and the magnetic circuit part are assembled into the base to be assembled into a whole relay.
  • the action displacement of the armature should be transmitted to the moving reed by the pushing block, and the end of the pushing block is snapped with the armature head at the end of the pushing block, and the armature and the pushing block can be fixed with the hinged portion as the axis.
  • the relative rotation of the angle, the other end of the pushing block is provided with a protrusion which protrudes into the notch of the moving spring piece in a overlapping manner.
  • the pushing block transmits the movement displacement of the armature to the moving reed, and the moving reed moves, so that the normally closed contact group is disconnected, the normally open contact group is turned on, and the normally closed contact is maintained under the action of the electromagnetic force generated by the coil energization.
  • the point group is disconnected and the normally open contact group is turned on.
  • FIG. 1 is a schematic structural view of a conventional relay
  • FIG. 2 is a schematic exploded view of a conventional relay
  • FIG. 3 is a schematic structural view of an existing relay armature and a push block card
  • FIG. 4 is an armature of the existing relay. Schematic diagram of the assembly process with the push block.
  • the relay of the structure comprises a base 1', a push block 2', an armature 3', a yoke 4', a bobbin 5', a coil 6', a normally closed static reed assembly 7', a normally open static reed assembly 8' And the moving spring 9'; the armature 3' is provided with a bump 31' and a tenon 32', and one end of the pushing block 2' is provided with a hole 21' and a recess 22', and the armature 3' head bump 31
  • the thickness of 'the hole is smaller than the width of the hole 21' of the push block, but the thickness of the armature head tenon 32' is larger than the width of the hole 21' of the push block.
  • the armature 3' head bump 31' is inserted into the hole 21' of the push block, and the armature head cam 32' is an interference fit snap-in.
  • the recess 22' of the push block limits the tenon 32' of the armature head.
  • the armature 3' cannot be withdrawn from the hole 21' of the push block. Since the thickness of the armature head bump 31' is smaller than the width of the hole 21' of the push block, the armature 3' can freely rotate within a certain angle range, which becomes the hinge structure of the armature 3' and the push block 2'.
  • the armature 3' When the armature 3' moves forward or backward, the armature 3' can drive the push block 2' to move forward or backward, and the push block 2' drives the moving reed 9' to move to achieve the purpose of contact switching.
  • the clamping between the armature 3' and the push block 2' is an interference fit, plastic chips are easily generated, and the plastic chips are liable to cause contact failure and relay failure.
  • the interference assembly structure allows the armature 3' to be loaded into the push block 2'. If it is necessary to remove, the push block 2' will be destroyed and can no longer be used.
  • the object of the present invention is to overcome the deficiencies of the prior art, and to provide a connection structure between the armature of the relay and the urging mechanism, and between the armature and the push block under the premise that the action of the armature driving push block is also better achieved. It is easy to assemble and disassemble, and it does not produce plastic chips during the assembly process. It has the characteristics of simple structure, low manufacturing cost and suitable for mass production.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a connection structure between the armature of the relay and the pushing mechanism, including an armature and a pushing block; the head of the armature is arranged in a T-shaped structure, which is composed of a straight arm and a horizontal The arm is connected; one end of the push block is provided with a strip through hole for allowing the T-shaped structure of the armature head to pass, and a strip for allowing the cross arm of the T-shaped structure of the armature head to fall into a blind hole; the strip-shaped through hole and the strip-shaped blind hole are arranged side by side and perpendicular to the moving direction of the pushing block; between the strip-shaped through hole and the middle of the strip-shaped blind hole, a gap is provided between the two a communicating groove, the T-shaped structure of the armature head extending through the strip-shaped through hole during assembly can move along the through groove, and the cross arm of the T-shaped structure falls into the strip-shaped blind hole And cooperate with
  • One side of the cross arm is provided with a first pushing surface for engaging a side wall of the strip blind hole to drive the pushing block to move in one direction
  • the other side of the cross arm is provided with a strip shape
  • the other side wall of the blind hole cooperates to drive the second push surface that pushes the block to move in the other opposite direction.
  • the circumference of the cross arm has a cross-sectional fit with the size of the hole of the strip through hole.
  • the invention has the beneficial effects that the T-shaped structure is arranged on the head of the armature, that is, the straight arm and the cross arm are connected; a strip-shaped through hole, a strip-shaped blind hole and a strip-shaped blind hole are arranged at one end of the pushing block.
  • the structure allows the T-shaped structure of the armature head to protrude from the strip through hole provided at one end of the push block, using the armature head
  • the straight arm of the T-shaped structure passes through the through slot, so that the cross arm of the T-shaped structure of the armature head falls into the strip-shaped blind hole of the pushing block;
  • the armature of the relay moves forward, the front of the arm of the armature
  • the driving push block moves forward, and the pushing block moves the moving spring to move forward, so that the moving contact is connected to the normally open static contact, and the pushing block presses the moving spring to maintain the contact open state.
  • connection structure between the armature of the relay of the present invention and the urging mechanism is not limited to the embodiment.
  • 1 is a schematic view showing the overall structure of a conventional relay
  • FIG. 2 is a schematic exploded view of a conventional relay
  • FIG. 3 is a schematic structural view of the armature of the existing relay and the push block being assembled together;
  • FIG. 4 is a schematic view showing an assembly process between an armature and a push block of a conventional relay
  • Figure 5 is a schematic view showing the overall structure of an embodiment of the present invention.
  • Figure 6 is a schematic exploded view of the embodiment of the present invention.
  • Figure 7 is a schematic view showing the structure of an armature and a push block assembled together according to an embodiment of the present invention
  • Figure 8 is a schematic illustration of the assembly process between the armature and the push block of the embodiment of the present invention.
  • connection structure between the armature and the urging mechanism of a relay of the present invention is used in a magnetic holding relay, and of course, it can also be used in other various relays.
  • the relay includes a contact portion, a magnetic circuit portion, a base 1 and a push block 2.
  • the contact portion comprises a normally closed static reed assembly 7, a normally open static reed assembly 8 and a movable reed 9, and these components are fixedly inserted into the guide grooves provided on the base 1 to form a stable, Reliable contact part.
  • the magnetic circuit portion includes a yoke 4, an armature 3, a magnetic steel 10, a bobbin 5, and a coil winding 6.
  • the yoke 4 has a U-shaped structure, and one end of the U-shaped yoke 4 passes through a hole of the bobbin 5 and is placed in the coil.
  • the other end of the U-shaped yoke 4 is placed on the outer side of the bobbin 5, and is also placed on the outer side of the coil winding 6;
  • the surface of the side plate of the bobbin 5 placed at the open end of the yoke is provided with a groove for supporting the rotation of the armature 51;
  • the armature 3 adopts a see-saw structure, and the armature 3 is provided with a limiting platform for fixing the magnetic steel, through which the magnetic steel 10 can be loaded and fixed;
  • the armature is provided with a shaft 31 for supporting the rotation of the armature portion. The shaft 31 is clamped into the groove 51 provided on the side plate of the bobbin, so that the armature 3 can be placed at the mating position.
  • the head of the armature 3 is arranged in a T-shaped structure, and is connected by a straight arm 32 and a cross arm 33.
  • One end of the push block 2 is provided with a strip through hole for allowing the T-shaped structure of the armature head to pass.
  • the strip-shaped through hole 21 and the strip-shaped blind hole 22 are arranged side by side and with the push block 2
  • the direction of movement is perpendicular;
  • a through groove 23 is provided between the strip-shaped through hole 21 and the middle of the strip-shaped blind hole 22, and the through groove 23 allows the through-hole to extend through the assembly.
  • the T-shaped structure of the armature head of 21 can move along the through slot 23, and the cross arm 33 of the T-shaped structure falls into the strip blind hole 22 to cooperate with the strip blind hole to drive when the armature 3 swings Push block 2 to move.
  • One side of the cross arm 33 is provided with a first pushing surface for engaging a side wall of the strip blind hole to drive the pushing block to move in one direction, and the other side of the cross arm is provided with a blind hole for the strip shape The other side wall cooperates to drive the second pushing surface of the pushing block to move in the opposite direction;
  • the width dimension of the straight arm 32 and the width dimension of the through groove 23 are matched without interference.
  • the thickness of the cross arm 33 is less than or equal to the depth of the strip blind hole 22;
  • the width of the cross arm 33 is smaller than the width of the strip blind hole 22, and forms a clearance gap when the armature swings.
  • connection structure between the armature of the relay and the pushing mechanism of the present invention can be applied to various relays, such as various relays such as a magnetic holding relay or a snap-on relay.
  • the head of the armature is arranged in a T-shaped structure; one end of the pushing block is provided with a strip-shaped through hole 21, a strip-shaped blind hole 22 and a through groove 23, and the through groove 23 is connected to the strip-shaped through hole 21 and the strip-shaped blind hole 22 between.
  • the T-shaped structure of the head of the armature 3 can extend from the strip-shaped through hole 21 at one end of the pushing block 2, and the straight arm 32 of the T-shaped structure of the armature head passes through the through groove 23, so that the cross arm 33 of the T-shaped structure falls.
  • the push block 2 In the strip blind hole 22 of the push block, it cooperates with the strip blind hole to drive the push block 2 to move when the armature 3 swings.
  • the armature 3 of the relay moves forward, the front of the cross arm 33 of the armature drives the push block 2 to move forward, and the push block 2 causes the moving spring 9 to also move forward, so that the movable contact and the normally open static contact are connected.
  • the push block 2 presses the moving reed 9 to maintain the contact open state.
  • the armature 3 of the relay moves backward, the rear of the arm 33 of the armature pulls the push block 2 to move backward, and the push block 2 causes the moving spring 9 to also move backward, so that the movable contact and the normally closed static contact are connected.
  • the push block 2 pulls the moving reed 9 to maintain the contact open state.
  • the straight arm 32 of the T-shaped structure of the armature head can be moved along the through slot 23 of the push block, so that the T-shaped structure of the armature head can be Moved to the strip through hole 21 of the pushing block, and then the cross arm 33 of the T-shaped structure of the armature head can be conveniently taken out from the strip through hole 21 of the pushing block, that is, the opposite direction in the assembly direction can be conveniently
  • the cross arm 33 of the T-shaped structure of the armature head is removed from the mating portion of the push block to facilitate adjustment of the mechanical parameters of the relay.
  • the T-shaped structure of the armature head of the present invention may also be connected to the inverted L shape by the straight arm 32 and a cross arm 33.
  • One end of the corresponding pushing block is provided with a strip through hole 21, a strip blind hole 22 and a through slot 23.
  • the through groove 23 is connected between the strip-shaped through hole 21 and the strip-shaped blind hole 22.
  • the cross-sectional shape of the straight arm 32 and the cross arm 33 of the armature head may be a circular shape or a square shape.
  • connection structure between the armature of the relay and the pushing mechanism comprises an armature and a pushing block; the armature head is arranged in a T-shaped structure formed by connecting the straight arm and the cross arm; and a strip-shaped through hole is arranged at one end of the pushing block a strip-shaped blind hole, a through groove for connecting the two, the structure makes assembly and disassembly between the armature and the push block easy, and does not generate plastic chips during assembly, and has a simple structure , low manufacturing cost, and can be suitable for mass production.

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  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Description

一种继电器的衔铁与推动机构之间的连接结构 技术领域
本发明涉及一种电磁继电器，特别是涉及一种继电器的衔铁与推动机构之间的连接结构。
背景技术
现有的电磁继电器一般包括有接触部分、磁路部分和推动块。接触部分包括有常闭静簧片组件、常开静簧片组件和动簧片组件，将这些组件以插装方式装入底座中，就可以形成稳定、可靠的接触部分。磁路部分包括有轭铁、衔铁、线圈架和线圈绕组。接触部分、磁路部分装入底座中就可以组装成继电器整件。在上述结构中，衔铁的动作位移要通过推动块才能传递给动簧片，在推动块的一端采用卡装方式与衔铁头部形成绞接，衔铁与推动块以绞接处为轴可以有一定角度的相对转动量，推动块的另一端上设置有凸起，该端以搭接方式伸入动簧片的缺口中。继电器的线圈不通电时，常闭触点组保持接通状态，推动块与动簧片呈自由搭接状态；当继电器的线圈通电时，衔铁向轭铁运动，绞接部位驱动推动块运动，推动块将衔铁的运动位移传递给动簧片，动簧片动作，使得常闭触点组断开、常开触点组接通，并在线圈通电产生的电磁力作用下，维持常闭触点组断开、常开触点组接通。
图1为现有继电器的总体的结构示意图，图2为现有继电器的结构分解示意图，图3为现有继电器的衔铁与推动块卡装在一起的结构示意图，图4为现有继电器的衔铁与推动块卡装装配过程的示意图。该结构的继电器，包括底座1＇、推动块2＇、衔铁3＇、轭铁4＇、线圈架5＇、线圈6＇、常闭静簧片组件7＇、常开静簧片组件8＇和动簧片9＇；在衔铁3＇头部设置有凸块31＇和凸苞32＇，推动块2＇一端则设置有孔21＇和凹台22＇，衔铁3＇头部凸块31＇的厚度小于推动块的孔21＇的宽度，但是衔铁头部凸苞32＇的厚度大于推动块的孔21＇的宽度。当衔铁3＇与推动块2＇卡装在一起时，是将衔铁3＇头部凸块31＇伸入推动块的孔21＇中，衔铁头部凸苞32＇是过盈装配卡入，装入后，推动块的凹台22＇对衔铁头的凸苞32＇进行限位，非外力作用下，衔铁3＇不能从推动块的孔21＇中退出。由于衔铁头部凸块31＇的厚度小于推动块的孔21＇宽度，因而衔铁3＇能在一定角度范围内自由转动，该处也即成为衔铁3＇与推动块2＇的绞接结构。当衔铁3＇向前或向后运动时，衔铁3＇能够驱动推动块2＇向前或向后运动，推动块2＇驱动动簧片9＇移动，达到触点切换的目的。但是，这种结构的继电器在装配过程中，由于衔铁3＇与推动块2＇之间的卡装是采用过盈装配，容易产生塑料屑，而塑料屑容易导致触点不通、继电器动作失效。而且这种过盈装配结构，使得衔铁3＇装入推动块2＇后，如果需要取下时，推动块2＇将会被破坏，不能再使用。
发明内容
本发明的目的在于克服现有技术之不足，提供一种继电器的衔铁与推动机构之间的连接结构，在同样较好地实现衔铁驱动推块块动作的前提下，使得衔铁与推动块之间的装配、拆卸均很容易，而且在装配过程中不会产生塑料屑，具有结构简单、制造成本低、能够适宜大批量生产的特点。
本发明解决其技术问题所采用的技术方案是：一种继电器的衔铁与推动机构之间的连接结构，包括衔铁和推动块；该衔铁的头部设置成T字形结构，由一直臂和一横臂连接而成；该推动块一端设置有一个能够让所述衔铁头部的T字形结构通过的条形通孔和一个能够让所述衔铁头部的T字形结构的横臂落入的条形盲孔；该条形通孔和条形盲孔呈并排设置并与所述推动块的运动方向相垂直；在条形通孔和条形盲孔的中部之间设有一条使两者之间相连通的通槽，该通槽使得装配时伸过该条形通孔的衔铁头部的T字形结构能够沿通槽移动，并将T字形结构的横臂落到所述条形盲孔中而与条形盲孔相配合以在衔铁摆动时带动推动块移动。
所述的横臂的一侧设有一用来与条形盲孔的一侧壁相配合以带动推动块向一个方向移动的第一推动面，横臂的另一侧设有一用来与条形盲孔的另一侧壁相配合以带动推动块向另一个相反的方向移动的第二推动面。
所述的横臂的周沿尺寸与条形通孔的孔沿尺寸之间为无过盈相配合。
所述的直臂的宽度尺寸与通槽的宽度尺寸之间为无过盈相配合。
本发明的有益效果是，由于采用了在衔铁的头部设置成T字形结构，即由一直臂和一横臂连接而成；在推动块一端设置一个条形通孔、一个条形盲孔和一个通槽，且通槽连接在条形通孔和条形盲孔之间；该结构使得衔铁头部的T字形结构可以从推动块一端上设置的条形通孔中伸入，利用衔铁头部的T字形结构的直臂经过通槽，可以使衔铁头部的T字形结构的横臂落入推动块的条形盲孔中；当继电器的衔铁向前运动时，衔铁的横臂的前面驱动推动块向前移动，推动块使得动簧片也向前运动，实现动触点与常开静触点接通，推动块压住动簧片保持触点接通状态。当继电器的衔铁向后运动时，衔铁的横臂的后面拉动推动块向后移动，推动块使得动簧片也向后运动，实现动触点与常闭静触点接通，推动块拉住动簧片保持触点接通状态。该结构在较好地实现衔铁驱动推块块动作的前提下，衔铁与推动块之间的连接采用无过盈装配，没有强行卡入动作，装配过程中不会产生塑料屑，消除导致影响继电器动作不良的因素；而且生产过程需要取下推动块时，也不会造成推动块损伤，可以重复使用，从而降低了生产成本；具有结构简单、制造成本低、能够适宜大批量生产的特点。
以下结合附图及实施例对本发明作进一步详细说明；但本发明的一种继电器的衔铁与推动机构之间的连接结构不局限于实施例。
附图说明
图1是现有继电器的总体的结构示意图；
图2是现有继电器的结构分解示意图；
图3是现有继电器的衔铁与推动块卡装在一起的结构示意图；
图4是现有继电器的衔铁与推动块之间装配过程的示意图；
图5是本发明的实施例的总体的结构示意图；
图6是本发明的实施例的结构分解示意图；
图7是本发明的实施例的衔铁与推动块装在一起的结构示意图；
图8是本发明的实施例的衔铁与推动块之间装配过程的示意图。
具体实施方式
实施例，参见图5至图8所示，本发明的一种继电器的衔铁与推动机构之间的连接结构，是使用在磁保持继电器上，当然，也可以使用于其它的各种继电器。该继电器包括接触部分、磁路部分、底座1和推动块2。接触部分包括有常闭静簧片组件7、常开静簧片组件8和动簧片9，将这些组件以插装方式装入底座1上设置的导槽中相固定，就可以形成稳定、可靠的接触部分。磁路部分包括有轭铁4、衔铁3、磁钢10、线圈架5和线圈绕组6；轭铁4采用U形结构，U形轭铁4的一端穿过线圈架5的孔，置于线圈绕组6中；U形轭铁4的另一端置于线圈架5的外侧，也是置于线圈绕组6的外侧；置于轭铁开口端的线圈架5侧板表面设置有用于支承衔铁转动的凹槽51；衔铁3采用翘翘板结构，衔铁3上设置有用于固定磁钢的限位台，通过该限位台可装入磁钢10并固定；衔铁上设置有用于支承衔铁部分转动的轴31，将轴31卡入线圈架侧板上设置的凹槽51，就可以使衔铁3处在配合的位置上。
该衔铁3的头部设置成T字形结构，由一直臂32和一横臂33连接而成；该推动块2一端设置有一个能够让所述衔铁头部的T字形结构通过的条形通孔21和一个能够让所述衔铁头部的T字形结构的横臂33落入的条形盲孔22；该条形通孔21和条形盲孔22呈并排设置并与所述推动块2的运动方向相垂直；在条形通孔21和条形盲孔22的中部之间设有一条使两者之间相连通的通槽23，该通槽23使得装配时伸过该条形通孔21的衔铁头部的T字形结构能够沿通槽23移动，并将T字形结构的横臂33落到所述条形盲孔22中而与条形盲孔相配合以在衔铁3摆动时带动推动块2移动。
其中：
横臂33的一侧设有一用来与条形盲孔的一侧壁相配合以带动推动块向一个方向移动的第一推动面，横臂的另一侧设有一用来与条形盲孔的另一侧壁相配合以带动推动块向另一个相反的方向移动的第二推动面；
所述的横臂33的周沿尺寸与条形通孔21的孔沿尺寸之间为无过盈相配合；
所述的直臂32的宽度尺寸与通槽23的宽度尺寸之间为无过盈相配合。
所述的横臂33的厚度小于或等于条形盲孔22的深度；
所述的横臂33的宽度小于条形盲孔22的宽度，形成一衔铁摆动时的让位间隙。
本发明的一种继电器的衔铁与推动机构之间的连接结构，可以适用于各种继电器，比如磁保持继电器或是拍合式继电器等各种继电器。衔铁的头部设置成T字形结构；推动块一端设置一个条形通孔21、一个条形盲孔22和一个通槽23，通槽23连接在条形通孔21和条形盲孔22之间。衔铁3头部的T字形结构可以从推动块2一端的条形通孔21中伸过去，利用衔铁头部的T字形结构的直臂32经过通槽23，使T字形结构的横臂33落在推动块的条形盲孔22中而与条形盲孔相配合以在衔铁3摆动时带动推动块2移动。当继电器的衔铁3向前运动时，衔铁的横臂33的前面驱动推动块2向前移动，推动块2使得动簧片9也向前运动，实现动触点与常开静触点接通，推动块2压住动簧片9保持触点接通状态。当继电器的衔铁3向后运动时，衔铁的横臂33的后面拉动推动块2向后移动，推动块2使得动簧片9也向后运动，实现动触点与常闭静触点接通，推动块2拉住动簧片9保持触点接通状态。将衔铁的横臂33向上抬离推动块的条形盲孔22时，其衔铁头部的T字形结构的直臂32可以沿推动块的通槽23移动，使衔铁头部的T字形结构可以移到推动块的条形通孔21处，然后就可以方便地将衔铁头部的T字形结构的横臂33从推动块的条形通孔21中取出，即沿装配方向的相反方向可以方便地将衔铁头部的T字形结构的横臂33从推动块的配合处取下，便于对继电器机械参数进行调整。
本发明衔铁头部的T字形结构也可以是由一直臂32和一横臂33连接倒L形，相应的推动块一端设置一个条形通孔21、一个条形盲孔22和一个通槽23与衔铁头部的以倒L形结构相吻合，通槽23连接在条形通孔21和条形盲孔22之间。
本衔铁头部的直臂32、横臂33的剖面形状可以是圆形，也可以是方形。
上述实施例仅用来进一步说明本发明的一种继电器的衔铁与推动机构之间的连接结构，但本发明并不局限于实施例，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均落入本发明技术方案的保护范围内。
工业实用性
本发明一种继电器的衔铁与推动机构之间的连接结构，包括衔铁和推动块；衔铁头部设成由直臂和横臂连接成的T字形结构；推动块一端设置有一个条形通孔、一个条形盲孔、一条使两者之间相连通的通槽，该结构使得衔铁与推动块之间的装配、拆卸均很容易，而且在装配过程中不会产生塑料屑，具有结构简单、制造成本低、能够适宜大批量生产的特点。

Claims (7)

  1. 一种继电器的衔铁与推动机构之间的连接结构，包括衔铁和推动块；其特征在于：该衔铁的头部设置成T字形结构，由一直臂和一横臂连接而成；该推动块一端设置有一个能够让所述衔铁头部的T字形结构通过的条形通孔和一个能够让所述衔铁头部的T字形结构的横臂落入的条形盲孔；该条形通孔和条形盲孔呈并排设置并与所述推动块的运动方向相垂直；在条形通孔和条形盲孔的中部之间设有一条使两者之间相连通的通槽，该通槽使得装配时伸过该条形通孔的衔铁头部的T字形结构能够沿通槽移动，并将T字形结构的横臂落到所述条形盲孔中而与条形盲孔相配合以在衔铁摆动时带动推动块移动。
  2. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述的横臂的一侧设有一用来与条形盲孔的一侧壁相配合以带动推动块向一个方向移动的第一推动面，横臂的另一侧设有一用来与条形盲孔的另一侧壁相配合以带动推动块向另一个相反的方向移动的第二推动面。
  3. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述的横臂的周沿尺寸与条形通孔的孔沿尺寸之间为无过盈相配合。
  4. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述的直臂的宽度尺寸与通槽的宽度尺寸之间为无过盈相配合。
  5. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述的横臂的厚度小于或等于条形盲孔的深度。
  6. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述的横臂的宽度小于条形盲孔的宽度，形成一衔铁摆动时的让位间隙。
  7. 根据权利要求1所述的继电器的衔铁与推动机构之间的连接结构，其特征在于：所述衔铁上设置有用于支承衔铁部分转动的轴。
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