WO2022135038A1 - 一种断路器的动触头机构 - Google Patents

一种断路器的动触头机构 Download PDF

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Publication number
WO2022135038A1
WO2022135038A1 PCT/CN2021/133617 CN2021133617W WO2022135038A1 WO 2022135038 A1 WO2022135038 A1 WO 2022135038A1 CN 2021133617 W CN2021133617 W CN 2021133617W WO 2022135038 A1 WO2022135038 A1 WO 2022135038A1
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WO
WIPO (PCT)
Prior art keywords
moving contact
circuit breaker
mounting seat
torsion spring
pole
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Application number
PCT/CN2021/133617
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English (en)
French (fr)
Inventor
周维峰
林凯
胡广召
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浙江奥来电器有限公司
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Application filed by 浙江奥来电器有限公司 filed Critical 浙江奥来电器有限公司
Publication of WO2022135038A1 publication Critical patent/WO2022135038A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1054—Means for avoiding unauthorised release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts

Definitions

  • the invention relates to a circuit breaker, in particular to a moving contact mechanism inside the circuit breaker.
  • the structure of the moving contact mechanism of the existing circuit breaker is unreasonable, and the phenomenon of jamming is prone to occur.
  • the installation of the N-pole moving contact and the L-pole moving contact is unreasonable, and it is easy to lag when tripping. Problems such as adhesion or increased friction are prone to occur between them.
  • the rotation direction of the existing circuit breaker handle is always the same, and the reverse direction cannot be realized, which limits its use range.
  • the present invention overcomes the problems existing in the prior art, and provides a novel moving contact mechanism of an earth leakage circuit breaker with reasonable structure and stable operation.
  • a moving contact mechanism of a circuit breaker including a moving contact mounting seat, a lock, an L-pole moving contact and an N-pole moving contact, and a moving contact mounting seat.
  • the L-pole moving contact and the N-pole moving contact are respectively movably arranged on the installation posts on both sides of the moving contact mounting seat, and the moving contact mounting seat is installed with the L-pole
  • One side of the moving contact is the first side
  • the side where the N-pole moving contact is installed is the second side.
  • the straight part, the curved part is bent upward on the side close to the handle of the circuit breaker, and the lock is provided with an interference arm, which is matched with the chute to lock or release the handle link of the circuit breaker.
  • the periphery of the straight part of the chute A boss is arranged, a positioning block is arranged under the boss, an arc-shaped convex column is arranged around the bottom of the mounting column on the first side of the moving contact mounting seat, and the plane around the mounting column on the first side of the moving contact mounting seat is flat
  • a convex rib on it, an installation through hole is arranged on the lock, the installation through hole of the lock is sleeved on the first side installation column and forms a rotating fit with the arc convex column, and the L-pole moving contact is sleeved on the first side
  • a first bayonet is provided on the L-pole moving contact
  • the purpose of setting the chute is to connect with the handle link in the circuit breaker, and the chute is provided with a curved part and a straight part, so that one end of the handle link can be positioned in cooperation with the interference arm of the lock. , so that it is placed on the curved part or slides into the straight part, and when one end of the handle link is placed on the curved part, operate the handle of the circuit breaker, at this time, the handle link can drive the moving contact seat to rotate, specifically the end of the handle link The part is placed on the bending part by the action of the interference arm, so as to realize the closing of the operation circuit breaker.
  • the interference arm of the lock leaves the upper part of the curved part of the chute, that is, it loses the resistance to the handle link.
  • the handle link slides into the straight part under the force of the side wall of the curved part of the chute and the handle, then the moving contact mounting seat rotates to trip the circuit breaker, and the side of the curved part close to the handle is set upward, so that the handle
  • the rotation direction is completely opposite to the traditional circuit breaker, which overcomes the problem that the original handle cannot be opened and closed in the opposite direction; the lock and the arc-shaped convex column are rotated and cooperated, so that there will be a gap, and dust will enter the gap, and there will be no adhesion.
  • the setting of the ribs is to reduce the friction;
  • the L-pole moving contact is very convenient to install in the above way, and the two arms of the first torsion spring are very firmly fixed on the mounting seat It can well limit the rotation range of the L-pole moving contact.
  • the L-pole moving contact is closer to the static contact when closing, and will rotate first in the case of high current, which is conducive to quick opening.
  • a further arrangement of the present invention is that: a connecting column is arranged above the mounting column on the second side of the movable contact mounting seat, the periphery of the connecting column is provided with a convex edge, and the convex edge is respectively provided with a conflicting surface and a conflicting boss , a third torsion spring is sleeved on the connecting column, the first torsion arm of the third torsion spring is in contact with the contact surface, and the second torsion arm of the third torsion spring can be in contact with the abutting boss.
  • a second stop is arranged below, a positioning notch is formed between the second stop and the side surface of the second side of the moving contact mounting seat, the N-pole moving contact is provided with a second bayonet, and the moving contact mounting seat A second cavity is arranged on the second side and corresponding to the second bayonet, the N-pole moving contact is sleeved on the mounting post on the second side of the moving contact mounting seat, and the N-pole moving contact is connected to the moving contact.
  • a second torsion spring is arranged between the contact mounts, the second torsion spring is also sleeved on the mounting post on the second side of the movable contact mount, the first torsion arm of the second torsion spring is in contact with the positioning notch, and the first torsion arm
  • the second torsion arm of the two torsion springs is in contact with the second bayonet of the N-pole moving contact, and the end of the second torsion arm of the second torsion spring is bent and inserted into the second cavity.
  • a positioning bump is arranged on the second side
  • an N limit block is arranged on the N-pole moving contact and located between the positioning bump and the interference boss, and the interference between the N limit block and the positioning bump or the interference boss constitutes N The limit of the rotation angle of the pole moving contact.
  • the function of the N-pole moving contact is the same as that of the L-pole moving contact.
  • the connecting column is set in the above-mentioned way, and the convex edge is arranged around the connecting column, which can well protect the connecting column. Even if the connecting column is broken, it will not affect the The function of the third torsion spring, the setting of the contact boss on the convex edge can make the second contact arm of the third torsion spring temporarily contact the contact boss. Mechanized installation can be realized on the bumps on the top.
  • a further arrangement of the present invention is that: the first torsion arm of the first torsion spring is placed near the stopper of the limit slot, and the space width of the limit slot in the first torsion arm of the first torsion spring is larger than that of the L-pole moving contact
  • the thickness of the head, the side of the positioning piece of the L-pole moving contact can be inserted into the space of the limit slot located in the first torsion arm, and the first torsion arm of the second torsion spring is placed near the stopper of the positioning notch , the space width of the positioning notch in the first torsion arm of the second torsion spring is larger than the thickness of the N-pole moving contact, and the side of the limit block of the N-pole moving contact can be inserted into the positioning notch at the first torsion arm of the second torsion spring Space inside the torsion arm.
  • a further arrangement of the present invention is: a rib or a groove is provided on the peripheral surface of the movable contact mounting seat and located between the positioning piece of the L-pole movable contact and the N limit block, and the lower part of the lock is provided with a rib or groove.
  • a convex piece is provided, an arc-shaped contact surface is provided on the lock catch corresponding to the release rod of the circuit breaker, and a resisting inclined surface is provided on the lock catch and located above the installation column.
  • the rib or groove is arranged on the peripheral surface of the movable contact mounting seat to increase the creepage distance. Since the positioning piece and the limit block are relatively close at this position, it is not easy to burn the product.
  • the setting of the lug is for pulling the double gold rod
  • the setting of the arc-shaped contact surface is to facilitate the push rod of the release
  • the contact slope is to facilitate the push of the top rod of the lock to the lock.
  • the final arrangement of the utility model is as follows: the periphery of the bottom of the chute is provided with a groove, the lower side of the curved portion of the chute and the side of the corresponding position on the boss are integrally provided to form a pressing surface, and after the circuit breaker is closed, the The connecting end of the handle link of the circuit breaker is in contact with the pressing surface, and the included angle between the thrust direction of the circuit breaker handle to the connecting end of the handle link and the thrust direction of the connecting end of the circuit breaker facing the handle link is less than 180 degrees
  • the movable contact mounting seat is provided with an opening and closing indicator plate above the chute.
  • the grooves are arranged to allow dust and the like to enter without affecting the movement of the handle connecting rod.
  • the switch When the switch is closed, it must be pressed firmly, and it is also necessary to ensure that the end of the connecting rod can slide into the straight part of the chute to disconnect the circuit breaker when the lock is rotated and disengaged from the handle connecting rod.
  • the angle between the thrust direction of the connecting end of the handle connecting rod and the thrust direction of the connecting end facing the connecting end of the handle connecting rod is less than 180 degrees, so the resultant force generated by the two forces is upward. If the lock contact arm is blocked, the end of the handle link will be placed on the curved part of the chute and will not move. If the lock contact arm above the handle link end leaves, the handle link end will slide down under the action of upward force. Enter the straight part of the chute to realize opening.
  • FIG. 1 is a perspective view of an embodiment of the present invention
  • FIG. 2 is a perspective view reflecting the third torsion spring according to an embodiment of the present invention.
  • FIG. 3 is a perspective view of a moving contact mounting seat according to an embodiment of the present invention.
  • FIG. 4 is a perspective view reflecting the connection column of the movable contact mounting seat according to the embodiment of the present invention.
  • FIG. 5 is a perspective view of the lock catch and the moving contact mounting seat in accordance with the embodiment of the present invention.
  • FIG. 6 is a structural diagram reflecting the force generated between the contact surface of the handle link and the chute when the circuit breaker is closed, according to an embodiment of the present invention
  • Fig. 7 is the schematic diagram of the force direction of Fig. 6;
  • FIG. 8 is a perspective view of a moving contact seat according to an embodiment of the present invention.
  • a moving contact mechanism of a circuit breaker includes a moving contact mounting seat 1, a latch 2, an L-pole moving contact 3 and an N-pole moving contact 4, and the moving contact mounting seat Mounting posts 14 are arranged on both sides of 1 and are located on the same axis.
  • the side of the head mounting base 1 where the L-pole moving contact 3 is mounted is the first side 11
  • the side where the N-pole moving contact 4 is mounted is the second side 12
  • the first side 11 of the moving contact mounting base 1 is provided above the first side 11 .
  • the chute 111 has a curved portion 1111 and a straight portion 1112, the curved portion 1111 is bent upwards on the side close to the handle of the circuit breaker, and a counter arm 22 is provided on the latch 2, and the counter arm 22 matches the chute 111 to break the circuit
  • the handle link of the device is locked or released, a boss 112 is provided around the straight portion 1112 of the chute 111, a positioning block 113 is provided below the boss 112, and the mounting column of the first side 11 of the movable contact mounting seat 1 14
  • the bottom is provided with an arc-shaped convex column 114 around its circumference, a convex rib 115 is provided on the plane around the mounting column 14 of the first side 11 of the movable contact mounting seat 1, and a mounting through hole 21 is provided on the lock buckle 2.
  • the mounting through hole 21 of the first side is sleeved on the first side mounting post 14 and forms a rotational fit with the arc-shaped convex post 114.
  • the L-pole moving contact 3 is sleeved on the mounting post 14 of the first side 11 and its side is in contact with or close to At the end of the arc-shaped convex column 114, the L-pole moving contact 3 is provided with a first bayonet 31, and the movable contact mounting base 1 is provided with a concave cavity 15 corresponding to the first bayonet 31, so A stopper 1121 is provided below the boss 112 , a limit slot 1122 is formed between the stopper 1121 and the side surface of the first side 11 of the movable contact mounting seat 1 , and the distance between the L-pole moving contact 3 and the moving contact mounting seat 1 is a limit groove 1122 .
  • a first torsion spring 5 is arranged between the two, and the first torsion spring 5 is also sleeved on the mounting post 14 of the first side 11 .
  • the second torsion arm of the first torsion spring 5 is in contact with the first bayonet 31 of the L-pole moving contact 3
  • the end wall of the second torsion arm of the first torsion spring 5 has a bent portion, which is inserted into the In the cavity 15 below the first bayonet 31, the L-pole moving contact 3 is provided with a positioning piece 32, the positioning piece 32 is located between the positioning block 113 and the boss 112 of the moving contact mounting seat 1, the positioning piece 32
  • the collision with the positioning block 113 or the boss 112 constitutes the limit of the rotation angle of the L-pole movable contact 3 .
  • the purpose of the chute 111 is to connect with the handle connecting rod in the circuit breaker, and the chute 111 is provided with a curved portion 1111 and a straight portion 1112, so that it can cooperate with the interference arm 22 of the lock 2 to realize the One end of the handle connecting rod is positioned so that it is placed on the curved part 1111 or slid into the straight part 1112.
  • the handle connecting rod can drive the moving contact base 1 Rotation, specifically, the end of the handle connecting rod is placed on the curved part 1111 under the action of the interference arm 22, so as to realize the closing of the operation circuit breaker.
  • the upper part of the groove curved part 1111 loses its resistance to the handle connecting rod, then the handle connecting rod slides into the straight part 1112 under the force of the side wall of the sliding groove curved part 1111 and the handle, and the moving contact mounting base 1 rotates to make the circuit breaker tripping, and here the side of the curved part 1111 close to the handle is upwardly arranged, so that the rotation direction of the handle is completely opposite to that of the traditional circuit breaker, which overcomes the problem that the original handle cannot realize opening and closing in the opposite direction;
  • the convex column 114 rotates and cooperates, there will be a gap, and the dust will enter the gap, and there will be no problems of adhesion and increased frictional force due to the influence of dust.
  • the setting of the convex rib 115 is to reduce the frictional force;
  • the above-mentioned method is very convenient to install.
  • the two arms of the first torsion spring 5 are firmly fixed on the mounting seat, and the rotation range of the L-pole movable contact 3 can be well limited. When closing, it is closer to the static contact, and will rotate first in the case of high current, which is conducive to quick opening.
  • a connecting column 121 is provided above the mounting column 14 on the second side 12 of the movable contact mounting base 1 , and a convex edge 1211 is provided around the periphery of the connecting column 121 , and the convex edges 1211 are respectively provided with
  • a third torsion spring 6 is sleeved on the connecting column 121, the first torsion arm of the third torsion spring 6 abuts on the contact surface 12111, and the second torsion arm of the third torsion spring 6 It can abut on the abutment boss 12112, of course, a groove can also be set on the abutment boss 12112, and the third torsion spring 6 can also abut in the groove, a second stopper 121121 is provided below the abutment boss 12112 , a positioning notch 121122 is formed between the second block 121121 and the side surface of the second side 12
  • the first torsion arm of the torsion spring 7 is in contact with the positioning notch 121122
  • the second torsion arm of the second torsion spring 7 is in contact with the second bayonet 42 of the N pole moving contact 4
  • the second torsion arm of the second torsion spring 7 The ends of the two torsion arms are bent and inserted into the second cavity 16 , a positioning bump 122 is provided on the second side 12 of the moving contact mounting base 1
  • the N-pole moving contact 4 is located on the positioning bump 122 and interferes with the
  • An N limit block 41 is arranged between the bosses 12112, and the collision between the N limit block 41 and the positioning bump 122 or the interference boss 12112 constitutes the limit of the rotation angle of the N pole moving contact 4; in the above scheme, the N pole
  • the function of the moving contact 4 is basically the same as that of the L-pole moving contact, and its purpose is to better close or open the switch.
  • the connecting column 121 is set in the above-mentioned way, and the convex edge 1211 is provided around it to protect the connection well.
  • the connecting post 121 even if the connecting post 121 is broken, the function of the third torsion spring 6 will not be affected.
  • the purpose is that when the circuit breaker base is installed, the second contact arm of the torsion spring 6 can be clamped to the bump on the base through the oblique edge on the base, so as to realize mechanized installation.
  • the first torsion arm of the first torsion spring 5 is placed near the stopper 1121 of the limiting slot 1122 , and the limiting slot 1122 is located in the space width of the first torsion arm of the first torsion spring 5
  • the thickness of the L-pole movable contact 3 is greater than that of the L-pole movable contact 3.
  • the side of the L-pole movable contact 3 can be inserted into the space of the limit slot 1122 located in the first torsion arm by rotating its positioning piece 32.
  • the first torsion arm of the second torsion spring 7 The positioning notch 121122 is placed near the stopper 121121, and the space width of the positioning notch 121122 in the first torsion arm of the second torsion spring 7 is larger than the thickness of the N-pole moving contact 4, and the N-pole moving contact 4 rotates its N
  • the side of the limit block 41 can be inserted into the space where the positioning recess 121122 is located in the first torsion arm of the second torsion spring 7; in the above solution, the limit groove 1122 and the first torsion arm of the first torsion spring 5 are set using the above solution , it can ensure that the movement range of the positioning piece 32 is not affected, and the rotation of the positioning piece 32 will not affect the torsion spring, and the two do not interfere with each other.
  • the bit block 41 also functions in this way.
  • a convex rib or The purpose of the groove 17 is to increase the creepage distance. Since the positioning piece 32 and the limit block 41 are relatively close at this position, the product will not be easily burned; the lower part of the lock buckle 2 is provided with an arc plate 23 and The function of the convex piece 24 and the arc-blocking plate 23 is to cut off the electric arc, the function of the convex piece 24 is to pull the double gold rod, and the arc-shaped contact surface 25 is provided on the lock 2 corresponding to the release rod of the circuit breaker.
  • the shaped interference slope 25 is convenient for the locking rod to push the lock 2 .
  • the lock 2 is provided with an interference slope 26 above the mounting column 14 .
  • grooves 1113 are provided on the periphery of the bottom of the chute 111.
  • the grooves 1113 can allow dust, impurities, etc. to enter without affecting the movement of the handle link.
  • the lower side surface and the side surface of the corresponding position on the boss 112 are integrally arranged to form a pressing surface 1123. After the circuit breaker is closed, the connecting end of the connecting rod of the circuit breaker handle abuts against the pressing surface 1123, and the handle of the circuit breaker is opposite to the handle connecting rod.
  • the angle A between the thrust direction F1 of the connecting end of the handle and the thrust direction F2 of the pressing surface 1123 to the connecting end of the handle connecting rod is less than 180 degrees, and the movable contact mounting base 1 is located above the chute 111. Gate indicator plate 13 .
  • the thrust direction of the handle to the connecting end of the handle connecting rod and the pressing surface 1123 The included angle between the directions of the thrust to the connecting end of the handle link is less than 180 degrees, so that the resultant force F3 generated by the two forces is upward.
  • the end is placed on the curved part 1111 of the chute and does not move. If the lock 2 above the end of the handle link contacts the arm 22 and leaves, the end of the handle link will slide into the straight part 1112 of the chute under the action of the upward force. Realize the opening.

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Abstract

本发明涉及一种断路器，特别是断路器内部动触头机构。本发明采用如下技术方案：一种断路器的动触头机构，其特征在于：动触头安装座的第一侧上方设置有滑槽，滑槽具有弯曲部和直部，弯曲部在靠近断路器手柄一侧呈向上弯曲，锁扣上设置抵触臂，该抵触臂与滑槽匹配对断路器的手柄连杆进行锁定或释放，通过采用上述方案，本发明克服现有技术存在的问题，提供一种结构合理，工作稳定的新型的断路器的动触头机构。

Description

一种断路器的动触头机构 技术领域
本发明涉及一种断路器，特别是断路器内部动触头机构。
背景技术
现有断路器的动触头机构结构不合理，容易出现卡顿现象，另外N极动触头和L极动触头安装不合理，在脱扣的时候容易滞后等问题，锁扣与安装座之间容易出现黏连或者摩擦力变大等问题，最后现有断路器手柄的转动方向始终都是一样的，无法实现反向，限制其使用范围。
发明内容
本发明克服现有技术存在的问题，提供一种结构合理，工作稳定的新型的漏电断路器的动触头机构。
为达到上述目的，本发明采用如下技术方案：一种断路器的动触头机构，包括有动触头安装座、锁扣、L极动触头和N极动触头，动触头安装座的两侧且位于同一轴线上设置有安装柱，L极动触头和N极动触头分别活动设置在动触头安装座两侧的安装柱上，所述动触头安装座安装L极动触头的一侧为第一侧，安装N极动触头的一侧为第二侧，其特征在于：动触头安装座的第一侧上方设置有滑槽，滑槽具有弯曲部和直部，弯曲部在靠近断路器手柄一侧呈向上弯曲，锁扣上设置抵触臂，该抵触臂与滑槽匹配对断路器的手柄连杆进行锁定或释放，所述滑槽的直部周边设置凸台，凸台下方设置有定位块，所述动触头安装座第一侧的安装柱底部绕其一周设置有弧形凸柱，动触头安装座第一侧的安装柱周边的平面上设置有凸筋，锁扣上设置安装通孔，锁扣的安装通孔套设在第一侧安装柱上且与弧形凸柱构成转动配合，L极动触头套设在第一侧的安装柱上且其侧面抵触或贴近在弧形凸柱的端部，L极动触头上设置有第一卡口，所述动触头 安装座上且与第一卡口对应处设置有凹腔，所述凸台的下方设置有挡块，挡块与动触头安装座第一侧的侧面之间形成限位槽，L极动触头与动触头安装座之间设置有第一扭簧，第一扭簧也套设在第一侧的安装柱上，第一扭簧的第一扭臂抵触在凸台下方的限位槽内，第一扭簧的第二扭臂抵触在L极动触头的第一卡口上，第一扭簧的第二扭臂的端壁具有弯折部，该弯折部插入第一卡口下方的凹腔中，L极动触头上设置有定位片，该定位片位于动触头安装座的定位块与凸台之间，定位片与定位块或凸台的抵触构成L极动触头的转动角度的限位。
通过采用上述方案，其中滑槽的设置其目的是与断路器中的手柄连杆连接，滑槽设置有弯曲部和直部，这样可以在与锁扣的抵触臂配合实现对手柄连杆一端定位，使它置于弯曲部或者滑入直部，其中手柄连杆一端置于弯曲部时，操作断路器手柄，此时手柄连杆可以对带动动触头座转动，具体是手柄连杆的端部受到抵触臂的作用一直置于弯曲部，实现操作断路器合闸，当锁扣在外作用力下运动，则锁扣的抵触臂离开滑槽弯曲部的上方也即失去对手柄连杆的抵触，则手柄连杆在滑槽弯曲部侧壁和手柄的作用力下滑入直部，则动触头安装座转动使断路器脱扣，并且这里弯曲部靠近手柄的一侧向上设置，这样手柄的转动方向与传统的断路器完全相反，克服了原来手柄不能相反方向实现分闸和合闸的问题；锁扣与弧形凸柱转动配合，会出现空隙，灰尘则会进入空隙，不会出现黏连和受灰尘影响增加摩擦力卡死的问题，凸筋的设置是减小摩擦力；L极动触头采用上述方式安装非常方便，另外第一扭簧的两个臂非常牢固的固定在安装座上，且可以很好的限定L极动触头的转动范围，同时L极动触头在合闸时与静触头更加紧密，在大电流的情况下会先行转动，利于快速分闸。
本发明的进一步设置是：所述动触头安装座第二侧的安装柱上方设置有连接柱，连接柱的周边绕其一周设置有凸边，凸边上分别设置有抵触面和抵触凸 台，连接柱上套接有第三扭簧，第三扭簧的第一扭臂抵触在抵触面上，第三扭簧的第二扭臂可抵触在抵触凸台上，所述抵触凸台的下方设置有第二挡块，第二挡块与动触头安装座第二侧的侧面之间形成定位凹口，所述N极动触头上设置有第二卡口，动触头安装座的第二侧上且与第二卡口对应处设置有第二凹腔，N极动触头套设在动触头安装座第二侧的安装柱上，且N极动触头与在动触头安装座之间设置有第二扭簧，第二扭簧也套设在动触头安装座第二侧的安装柱上，第二扭簧的第一扭臂抵触在定位凹口上，第二扭簧的第二扭臂抵触在N极动触头的第二卡口上，且第二扭簧的第二扭臂端部弯折后插入第二凹腔中，动触头安装座的第二侧上设置有定位凸块，N极动触头上且位于定位凸块和抵触凸台之间设置有N极限位块，N极限位块与定位凸块或抵触凸台的抵触构成N极动触头的转动角度的限位。
通过采用上述方案，N极动触头的作用与L极动触头相同，另外连接柱采用上述方式设置，其周边设置有凸边可以很好的保护连接柱，即使连接柱断了也不影响第三扭簧的作用，凸边上的抵触凸台设置可以使第三扭簧的第二抵触臂临时抵触在抵触凸台上，在断路器底座安装时可以通过底座上的斜边卡入底座上的凸块上，可实现机械化安装。
本发明的进一步设置是：所述第一扭簧的第一扭臂置于限位槽的靠近挡块处，限位槽位于第一扭簧第一扭臂内的空间宽度大于L极动触头的厚度，L极动触头转动其定位片侧边可插入限位槽位于第一扭臂内的空间，所述第二扭簧的第一扭臂置于定位凹口的靠近挡块处，定位凹口位于第二扭簧第一扭臂内的空间宽度大于N极动触头的厚度，N极动触头转动其限位块侧边可插入定位凹口位于第二扭簧第一扭臂内的空间。
通过采用上述方案，其中限位槽与第一扭簧的第一扭臂采用上述方案设置， 可以保证定位片的活动范围不受影响，另外定位片转动也不会对扭簧产生影响，两者之间互不干涉，同理定位凹口和第二扭簧以及限位块也是这样的作用。
本发明的再进一步设置是：所述动触头安装座的周面上且位于L极动触头的定位片和N极限位块之间设置有凸筋或凹槽，所述锁扣的下方设置有凸片，锁扣上与断路器的脱扣器顶杆对应处设置有弧形抵触面，所述锁扣上且位于安装柱的上方设置有抵触斜面。
通过采用上述方案，其中动触头安装座周面上设置凸筋或凹槽，其目的是增加爬电距离，由于定位片和限位块在这个位置相对比较靠近，这样就不会容易烧灼产品；凸片的设置是供双金拉杆拉动，弧形抵触面设置是方便脱扣器顶杆对它推动，抵触斜面是方便锁扣顶杆对锁扣的顶推。
实用新型的最后设置是：所述滑槽底部的周边设置有凹槽，所述滑槽弯曲部的下侧面与凸台上的对应位置的侧面一体设置构成抵压面，断路器合闸后，断路器手柄连杆的连接端抵触在抵压面上，且断路器手柄对手柄连杆的连接端的推力方向与抵压面对手柄连杆的连接端的推力的方向之间的夹角小于180度，所述动触头安装座位于滑槽的上方设置有分合闸指示板。
通过采用上述方案，增加产品的安全性，其中凹槽的设置可以使灰尘等进入，不影响手柄连杆的移动，上面对抵压面的限定是既要满足抵压面对手柄连杆在合闸时稳固的抵压，也要保证手柄连杆在锁扣转动脱离手柄连杆时，连杆端部即可滑入滑槽的直部实现断路器断开，这里要说明的是；手柄对手柄连杆的连接端的推力方向与抵压面对手柄连杆的连接端的推力的方向之间的夹角小于180度，这样两个力产生的合力就向上，如果手柄连杆端部上方被锁扣抵触臂挡住，则手柄连杆端部就置于滑槽弯曲部不动，如果手柄连杆端部上方的锁扣抵触臂离开，则手柄连杆端部就在受向上力的作用下滑入滑槽直部，实现分 闸。
下面结合具体实施例对本发明作进一步的说明。
附图说明
图1为本发明实施例的立体图；
图2为本发明实施例反映第三扭簧的立体图；
图3为本发明实施例动触头安装座的立体图；
图4为本发明实施例反映动触头安装座连接柱的立体图；
图5为本发明实施例锁扣与动触头安装座配合的立体图；
图6为本发明实施例反映断路器合闸时手柄连杆与滑槽抵触面之间力产生的结构图；
图7为图6的受力方向示意图；
图8为本发明实施例动触头座的立体图。
具体实施方式
如图1-8所示，一种断路器的动触头机构，包括有动触头安装座1、锁扣2、L极动触头3和N极动触头4，动触头安装座1的两侧且位于同一轴线上设置有安装柱14，L极动触头3和N极动触头4分别活动设置在动触头安装座1两侧的安装柱14上，所述动触头安装座1安装L极动触头3的一侧为第一侧11，安装N极动触头4的一侧为第二侧12，动触头安装座1的第一侧11上方设置有滑槽111，滑槽111有弯曲部1111和直部1112，弯曲部1111在靠近断路器手柄一侧呈向上弯曲，锁扣2上设置抵触臂22，该抵触臂22与滑槽111匹配对断路器的手柄连杆进行锁定或释放，所述滑槽111的直部1112周边设置凸台112，凸台112下方设置有定位块113，所述动触头安装座1第一侧11的安装柱14底部绕其一周设置有弧形凸柱114，动触头安装座1第一侧11的安装柱14 周边的平面上设置有凸筋115，锁扣2上设置安装通孔21，锁扣2的安装通孔21套设在第一侧安装柱14上且与弧形凸柱114构成转动配合，L极动触头3套设在第一侧11的安装柱14上且其侧面抵触或贴近在弧形凸柱114的端部，L极动触头3上设置有第一卡口31，所述动触头安装座1上且与第一卡口31对应处设置有凹腔15，所述凸台112的下方设置有挡块1121，挡块1121与动触头安装座1第一侧11的侧面之间形成限位槽1122，L极动触头3与动触头安装座1之间设置有第一扭簧5，第一扭簧5也套设在第一侧11的安装柱14上，第一扭簧5的第一扭臂抵触在凸台112下方的限位槽1122内，第一扭簧5的第二扭臂抵触在L极动触头3的第一卡口31上，第一扭簧5的第二扭臂的端壁具有弯折部，该弯折部插入第一卡口31下方的凹腔15中，L极动触头3上设置有定位片32，该定位片32位于动触头安装座1的定位块113与凸台112之间，定位片32与定位块113或凸台112的抵触构成L极动触头3的转动角度的限位。采用上述方案，其中滑槽111的设置其目的是与断路器中的手柄连杆连接，滑槽111设置有弯曲部1111和直部1112，这样可以在与锁扣2的抵触臂22配合实现对手柄连杆一端定位，使它置于弯曲部1111或者滑入直部1112，其中手柄连杆一端置于弯曲部1111时，操作断路器手柄，此时手柄连杆可以对带动动触头座1转动，具体是手柄连杆的端部受到抵触臂22的作用一直置于弯曲部1111，实现操作断路器合闸，当锁扣2在外作用力下运动，则锁扣2的抵触臂22离开滑槽弯曲部1111的上方也即失去对手柄连杆的抵触，则手柄连杆在滑槽弯曲部1111侧壁和手柄的作用力下滑入直部1112，则动触头安装座1转动使断路器脱扣，并且这里弯曲部1111靠近手柄的一侧向上设置，这样手柄的转动方向与传统的断路器完全相反，克服了原来手柄不能相反方向实现分闸和合闸的问题；锁扣2与弧形凸柱114转动配合，会出现空隙，灰尘则会进入空隙，不会出现黏连和 受灰尘影响增加摩擦力卡死的问题，凸筋115的设置是减小摩擦力；L极动触头3采用上述方式安装非常方便，另外第一扭簧5的两个臂非常牢固的固定在安装座上，且可以很好的限定L极动触头3的转动范围，同时L极动触头3在合闸时与静触头更加紧密，在大电流的情况下会先行转动，利于快速分闸。
在本发明实施例中，所述动触头安装座1第二侧12的安装柱14上方设置有连接柱121，连接柱121的周边绕其一周设置有凸边1211，凸边1211上分别设置有抵触面12111和抵触凸台12112，连接柱121上套接有第三扭簧6，第三扭簧6的第一扭臂抵触在抵触面12111上，第三扭簧6的第二扭臂可抵触在抵触凸台12112上，当然也可以使抵触凸台12112上设置凹槽，第三扭簧6也可以抵触在凹槽中，所述抵触凸台12112的下方设置有第二挡块121121，第二挡块121121与动触头安装座1第二侧12的侧面之间形成定位凹口121122，所述N极动触头4上设置有第二卡口42，动触头安装座1的第二侧12上且与第二卡口42对应处设置有第二凹腔16，N极动触头4套设在动触头安装座1第二侧12的安装柱14上，且N极动触头4与在动触头安装座1之间设置有第二扭簧7，第二扭簧7也套设在动触头安装座1第二侧12的安装柱14上，第二扭簧7的第一扭臂抵触在定位凹口121122上，第二扭簧7的第二扭臂抵触在N极动触头4的第二卡口42上，且第二扭簧7的第二扭臂端部弯折后插入第二凹腔16中，动触头安装座1的第二侧12上设置有定位凸块122，N极动触头4上且位于定位凸块122和抵触凸台12112之间设置有N极限位块41，N极限位块41与定位凸块122或抵触凸台12112的抵触构成N极动触头4的转动角度的限位；上述方案中，N极动触头4的作用与L极动触头基本相同，其目的都是更好的合闸或分闸，另外连接柱121采用上述方式设置，其周边设置有凸边1211可以很好的保护连接柱121，即使连接柱121断了也不影响第三扭簧6的作用，凸边1211 上的抵触凸台12112设置可以使第三扭簧6的第二抵触臂临时抵触在抵触凸台12112上，其目的是在断路器底座安装时可以通过底座上的斜边把扭簧6的第二抵触臂卡入底座上的凸块上，可实现机械化安装。
在本发明实施例中，所述第一扭簧5的第一扭臂置于限位槽1122的靠近挡块1121处，限位槽1122位于第一扭簧5第一扭臂内的空间宽度大于L极动触头3的厚度，L极动触头3转动其定位片32侧边可插入限位槽1122位于第一扭臂内的空间，所述第二扭簧7的第一扭臂置于定位凹口121122的靠近挡块121121处，定位凹口121122位于第二扭簧7第一扭臂内的空间宽度大于N极动触头4的厚度，N极动触头4转动其N极限位块41侧边可插入定位凹口121122位于第二扭簧7第一扭臂内的空间；上述方案中，其中限位槽1122与第一扭簧5的第一扭臂采用上述方案设置，可以保证定位片32的活动范围不受影响，另外定位片32转动也不会对扭簧产生影响，两者之间互不干涉，同理定位凹口121122和第二扭簧7以及N极限位块41也是这样的作用。
在本发明实施例中，所述动触头安装座1的周面上且位于L极动触头3的定位片32和N极动触头4的限位块41之间设置有凸筋或凹槽17，其目的是增加爬电距离，由于定位片32和限位块41在这个位置相对比较靠近，这样就不会容易烧灼产品；所述锁扣2的下方设置有隔弧板23和凸片24，隔弧板23的作用是隔断电弧，凸片24的作用是供双金拉杆拉动，锁扣2上与断路器的脱扣器顶杆对应处设置有弧形抵触面25，弧形抵触斜面25是方便锁扣顶杆对锁扣2的顶推，所述锁扣2上且位于安装柱14的上方设置有抵触斜面26。
在本发明实施例中，所述滑槽111底部的周边设置有凹槽1113，凹槽1113的设置可以使灰尘、杂质等进入，不影响手柄连杆的移动，所述滑槽弯曲部1111的下侧面与凸台112上的对应位置的侧面一体设置构成抵压面1123，断路器合 闸后，断路器手柄连杆的连接端抵触在抵压面1123上，且断路器手柄对手柄连杆的连接端的推力方向F1与抵压面1123对手柄连杆的连接端的推力的方向F2之间的夹角A小于180度，所述动触头安装座1位于滑槽111的上方设置有分合闸指示板13。通过采用上述方案，增加产品的安全性，其中上面对抵压面1123的限定是既要满足抵压面1123对手柄连杆在合闸时稳固的抵压，也要保证手柄连杆在锁扣转动脱离手柄连杆时，连杆端部即可滑入滑槽111的直部1112实现断路器断开，这里要说明的是：手柄对手柄连杆的连接端的推力方向与抵压面1123对手柄连杆的连接端的推力的方向之间的夹角小于180度，这样两个力产生的合力F3就向上，如果手柄连杆端部上方被锁扣2抵触臂22挡住，则手柄连杆端部就置于滑槽弯曲部1111不动，如果手柄连杆端部上方的锁扣2抵触臂22离开，则手柄连杆端部就在受向上力的作用下滑入滑槽直部1112，实现分闸。
最后，需要说明的是本申请文件中所描述的上、下等位置关系的术语都是以本申请文件附图1为视图说明的。

Claims (6)

  1. 一种断路器的动触头机构，包括有动触头安装座、锁扣、L极动触头和N极动触头，动触头安装座的两侧且位于同一轴线上设置有安装柱，L极动触头和N极动触头分别活动设置在动触头安装座两侧的安装柱上，所述动触头安装座安装L极动触头的一侧为第一侧，安装N极动触头的一侧为第二侧，其特征在于：动触头安装座的第一侧上方设置有滑槽，滑槽具有弯曲部和直部，弯曲部在靠近断路器手柄一侧呈向上弯曲，锁扣上设置抵触臂，该抵触臂与滑槽匹配对断路器的手柄连杆进行锁定或释放，所述滑槽的直部周边设置凸台，凸台下方设置有定位块，所述动触头安装座第一侧的安装柱底部绕其一周设置有弧形凸柱，动触头安装座第一侧的安装柱周边的平面上设置有凸筋，锁扣上设置安装通孔，锁扣的安装通孔套设在第一侧安装柱上且与弧形凸柱构成转动配合，L极动触头套设在第一侧的安装柱上且其侧面抵触或贴近在弧形凸柱的端部，L极动触头上设置有第一卡口，所述动触头安装座上且与第一卡口对应处设置有凹腔，所述凸台的下方设置有挡块，挡块与动触头安装座第一侧的侧面之间形成限位槽，L极动触头与动触头安装座之间设置有第一扭簧，第一扭簧也套设在第一侧的安装柱上，第一扭簧的第一扭臂抵触在凸台下方的限位槽内，第一扭簧的第二扭臂抵触在L极动触头的第一卡口上，第一扭簧的第二扭臂的端壁具有弯折部，该弯折部插入第一卡口下方的凹腔中，L极动触头上设置有定位片，该定位片位于动触头安装座的定位块与凸台之间，定位片与定位块或凸台的抵触构成L极动触头的转动角度的限位。
  2. 根据权利要求1所述的断路器的动触头机构，其特征在于：所述动触头安装座第二侧的安装柱上方设置有连接柱，连接柱的周边绕其一周设置有凸边，凸边上分别设置有抵触面和抵触凸台，连接柱上套接有第三扭簧，第三扭簧的第一扭臂抵触在抵触面上，第三扭簧的第二扭臂可抵触在抵触凸台上，所述抵 触凸台的下方设置有第二挡块，第二挡块与动触头安装座第二侧的侧面之间形成定位凹口，所述N极动触头上设置有第二卡口，动触头安装座的第二侧上且与第二卡口对应处设置有第二凹腔，N极动触头套设在动触头安装座第二侧的安装柱上，且N极动触头与在动触头安装座之间设置有第二扭簧，第二扭簧也套设在动触头安装座第二侧的安装柱上，第二扭簧的第一扭臂抵触在定位凹口上，第二扭簧的第二扭臂抵触在N极动触头的第二卡口上，且第二扭簧的第二扭臂端部弯折后插入第二凹腔中，动触头安装座的第二侧上设置有定位凸块，N极动触头上且位于定位凸块和抵触凸台之间设置有N极限位块，N极限位块与定位凸块或抵触凸台的抵触构成N极动触头的转动角度的限位。
  3. 根据权利要求2所述的断路器的动触头机构，其特征在于：所述第一扭簧的第一扭臂置于限位槽的靠近挡块处，限位槽位于第一扭簧第一扭臂内的空间宽度大于L极动触头的厚度，L极动触头转动其定位片侧边可插入限位槽位于第一扭臂内的空间，所述第二扭簧的第一扭臂置于定位凹口的靠近挡块处，定位凹口位于第二扭簧第一扭臂内的空间宽度大于N极动触头的厚度，N极动触头转动其限位块侧边可插入定位凹口位于第二扭簧第一扭臂内的空间。
  4. 根据权利要求1或2所述的断路器的动触头机构，其特征在于：所述动触头安装座的周面上且位于L极动触头的定位片和N极限位块之间设置有凸筋或凹槽，所述锁扣的下方设置有凸片，锁扣上与断路器的脱扣器顶杆对应处设置有弧形抵触面，所述锁扣上且位于安装柱的上方设置有抵触斜面。
  5. 根据权利要求1或2所述的断路器的动触头机构，其特征在于：所述滑槽底部的周边设置有凹槽，所述滑槽弯曲部的下侧面与凸台上的对应位置的侧面一体设置构成抵压面，断路器合闸后，断路器手柄连杆的连接端抵触在抵压面上，且断路器手柄对手柄连杆的连接端的推力方向与抵压面对手柄连杆的连 接端的推力的方向之间的夹角小于180度，所述动触头安装座位于滑槽的上方设置有分合闸指示板。
  6. 根据权利要求4所述的断路器的动触头机构，其特征在于：所述滑槽底部的周边设置有凹槽，所述滑槽弯曲部的下侧面与凸台上的对应位置的侧面一体设置构成抵压面，断路器合闸后，断路器手柄连杆的连接端抵触在抵压面上，且断路器手柄对手柄连杆的连接端的推力方向与抵压面对手柄连杆的连接端的推力的方向之间的夹角小于180度，所述动触头安装座位于滑槽的上方设置有分合闸指示板。
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