WO2022183910A1 - 用于断路器的操作机构 - Google Patents

用于断路器的操作机构 Download PDF

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Publication number
WO2022183910A1
WO2022183910A1 PCT/CN2022/076511 CN2022076511W WO2022183910A1 WO 2022183910 A1 WO2022183910 A1 WO 2022183910A1 CN 2022076511 W CN2022076511 W CN 2022076511W WO 2022183910 A1 WO2022183910 A1 WO 2022183910A1
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WO
WIPO (PCT)
Prior art keywords
circuit breaker
locking
rotating
connection point
operating mechanism
Prior art date
Application number
PCT/CN2022/076511
Other languages
English (en)
French (fr)
Inventor
张森林
王冰青
周荣伟
孙吉升
Original Assignee
上海电器科学研究所(集团)有限公司
上海电器科学研究院
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 上海电器科学研究所(集团)有限公司, 上海电器科学研究院 filed Critical 上海电器科学研究所(集团)有限公司
Priority to EP22762376.6A priority Critical patent/EP4300536A1/en
Publication of WO2022183910A1 publication Critical patent/WO2022183910A1/zh

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/56Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective 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
    • H01H73/02Details
    • H01H73/18Means for extinguishing or suppressing arc

Definitions

  • the present application relates to the technical field of circuit breakers, and in particular, to an operating mechanism for circuit breakers.
  • Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overload or short-circuit and under-voltage faults, they can automatically cut off the circuit, and generally do not break the fault current. It is widely used because parts need to be changed.
  • a circuit breaker is generally composed of a contact mechanism, an arc extinguishing device, an operating mechanism, a release, and a casing.
  • the existing operating mechanism and the arc extinguishing device are oppositely arranged in the length direction of the circuit breaker, that is, the arc extinguishing device extends along the height direction of the circuit breaker, and the length is generally greater than the height, resulting in a small area occupied by the arc extinguishing device in the circuit breaker. , so that the arc extinguishing device is difficult to break the high short-circuit current.
  • Embodiments of the present application provide an operating mechanism for a circuit breaker, so as to at least solve the problem of the existing circuit breaker that the operating mechanism occupies a large area, resulting in a small area occupied by the arc extinguishing device and difficulty in breaking high short-circuit currents.
  • an embodiment of the present application provides an operating mechanism for a circuit breaker, connected to a rotating wheel, the operating mechanism includes an operating assembly, a transmission mechanism and a locking mechanism, the operating assembly includes a support and is rotatably mounted on the The rotating member of the support member, the rotating member has a first limit position and a second limit position in the rotation direction;
  • the locking mechanism includes a jumper, a lock, a traction member coupled to the release, and a transition piece connecting the lock and the traction member, and the locking mechanism has a tripping state and a buckled state, so When the locking mechanism is in the buckled state, the jumping buckle and the locking buckle form a first locking position, the transition piece and the locking buckle form a second locking position, and the transition piece and the traction piece form a second locking position. form the third locking position;
  • the transmission mechanism includes a first connecting rod, a second connecting rod, a rotating shaft connecting the first connecting rod and the second connecting rod, and a main elastic member, and one end of the first connecting rod has a connection with the jumper.
  • the first connection point of the buckle is pivoted, the other end of the first link has a second connection point connected with the second link, and one end of the second link has a second link connected with the first link a third connection point, the other end of the second link has a fourth connection point connected with the rotating wheel, and the rotating shaft is arranged between the second connection point and the third connection point;
  • the One end of the main elastic member has a first installation position connected with the rotating member, and the other end has a second installation position connected with the rotating shaft;
  • the first locking position, the second locking position and the third locking position are sequentially arranged along the positive direction of the X axis to form a locking chain.
  • the sequential arrangement in the negative direction of the X-axis mentioned in this embodiment refers to the arrangement order of the X-axis coordinates of the first installation position, the first connection point, the rotating shaft, and the fourth connection point, rather than restricting the transmission chain to be in a straight line, that is
  • the first installation position, the first connection point, the rotation axis, and the fourth connection point may have the same Y-axis coordinate, or may have different Y-axis coordinates.
  • the sequential arrangement in the positive direction of the X-axis refers to the arrangement sequence of the X-axis coordinates of the first locking position, the second locking position, and the third locking position, rather than restricting the locking chain on a straight line.
  • the locking chain is located below the transmission chain in the Y-axis direction.
  • the rotating member when the rotating member is located at the first limit position, in the X-axis direction, the second locking position and the third locking position are located at two positions of the first installation position. side.
  • the operating assembly, the locking mechanism and the main elastic member are located on the right side of the Y-axis, the first connection point, the second connection point and the first connection point
  • the three connection points are located on the right side of the Y axis, the fourth connection point can move back and forth on both sides of the Y axis, and the rotating shaft can move back and forth on both sides of the X axis.
  • the support member includes two sub-side plates opposite in a first direction, the sub-side plates having a depression from one end of the sub-side plate to a central area of the sub-side plate the concave part;
  • the rotating member is rotatably connected to the sub-side plate and can partially rotate into the concave part, the rotating part includes two rotating plates opposite in the first direction, and two The hooking part between the rotating plates, the two rotating plates are enclosed to form a accommodating space, the two sub-side plates are sandwiched between the two rotating plates, and the rotating plates have a connection for connecting the two rotating plates.
  • the hooking part is arranged on the rotating end, and the hooking part is used to hook the main elastic member;
  • the A handle is installed on the rotating end, and the handle is arranged adjacent to the hooking portion.
  • the lock catch and the traction member are located on two sides of the recessed portion, respectively, and are rotatably mounted on the support member.
  • the transition piece is located below the recessed portion in the Y-axis direction.
  • the support member includes a fixing pin installed on the sub-side plate, the fixing pin is sleeved with a rolling wheel, and the connecting end of the rotating shaft has an outer circumference that is clamped to the rolling wheel
  • the arc-shaped clamping surface, the hooking part includes a body, the body has a shaft pin placement groove extending in the first direction, and the opening is away from the accommodating space, the bottom surface of the shaft pin placement groove penetrates through A through hole for penetrating the main elastic member is provided.
  • the rotating member includes a catch portion, and the catch portion and the catch portion are sequentially disposed on the rotating end in a direction in which the rotating plate rotates into the recessed portion.
  • the clamping part has a first clamping surface and a second clamping surface facing the accommodating space and connected at an angle, and a limiting surface provided away from the first clamping surface, and the handle abuts on the limit surface.
  • the clipping portion has an escape surface that is disposed away from the second clipping surface and connected to the limiting surface, and the hooking portion has an escape surface that faces away from the accommodating space.
  • the avoidance surface is located between the limit surface and the outer surface, the included angle formed by the avoidance surface and the limit surface is ⁇ 1 , and the avoidance surface and the outer surface are formed.
  • the included angle is ⁇ 2 , where 90° ⁇ 1 ⁇ 2 .
  • the shape of the rotating plate is a fan shape, and the rotating end includes an arc edge.
  • the hooking portion is provided at an end portion of the arc-shaped edge that rotates into the recessed portion, and the hooking portion has a first end opposite in the rotation direction and At the second end, the first end of the hooking portion is connected to the clipping portion, and the clipping portion is connected to the sub-side plate through the hooking portion.
  • the hooking portion has a third end and a fourth end opposite in a first direction, and the third end and the fourth end are respectively disposed along the first direction
  • the rotating end is provided with a plug extending along the first direction
  • the plug is provided with an insertion hole
  • the plug is in an interference fit with the plug hole.
  • the operating mechanism for the circuit breaker forms a transmission chain and a locking chain by arranging an operating assembly, a transmission mechanism and a locking mechanism, and the arc extinguishing device is arranged below, that is, the arc extinguishing device also extends along the length direction of the circuit breaker.
  • the arc extinguishing device of the present application can occupy a larger space, and thus can break a higher short-circuit current.
  • FIG. 1 is a schematic structural diagram of a circuit breaker provided in an embodiment of the present application in a tripped state
  • FIG. 2 is a schematic structural diagram of the circuit breaker shown in FIG. 1 in a buckled state
  • Figure 3 is a schematic structural diagram of the circuit breaker shown in Figure 1 in a closed state
  • Fig. 4 is the structural representation of the transmission mechanism shown in Fig. 1;
  • Figure 5 is a schematic structural diagram of the transmission mechanism and the operating assembly shown in Figure 1;
  • Fig. 6 is the enlarged structural representation at F in Fig. 1;
  • Fig. 7 is the structural representation of the jump buckle in Fig. 6;
  • Fig. 8 is the structural representation of the lock in Fig. 6;
  • Fig. 9 is the structural representation of the traction member in Fig. 6;
  • Fig. 10 is the structural representation of the transition piece in Fig. 6;
  • FIG. 11 is a schematic structural diagram of the operating assembly shown in FIG. 1;
  • Fig. 12 is the structural schematic diagram of the support member in Fig. 11;
  • Fig. 13 is the structural representation of the rotating member in Fig. 11;
  • FIG. 14 is a schematic diagram of connection of three circuit breakers provided in an embodiment of the present application.
  • Locking mechanism Jump buckle; 511, First side plate; 512, Connecting plate; 513, Second surface; 514, Locking surface; 515, Mounting ear; 5151, First mounting hole; 5161, the first contact surface; 5162, the second contact surface; 5163, the second mounting hole; 517, the guide plate; 518, the arc guide surface;
  • traction member 531, second base body; 532, second transmission part; 533, stepped structure; 534, rotating shaft receiving part; 535, first stepped surface; 536, second stepped surface; 537, arc transition surface ;
  • 54 linkage assembly; 541, first telescopic piece; 542, second telescopic piece; 543, transition piece; 544, Y-type splint; 5441, first free end; 5442, second free end; 5443, third free end ; 545, the first shaft; 546, the second shaft; 547, the roller; 548, the installation slot; 549, the third shaft;
  • A the first direction
  • B the second direction
  • C the third direction
  • D the fourth direction
  • E the fifth direction.
  • FIG. 1 is a schematic structural diagram of the circuit breaker provided in an embodiment of the present application in a tripped state
  • FIG. 2 is a structural schematic diagram of the circuit breaker shown in FIG. 1 in a buckled state
  • FIG. 3 is a schematic diagram of 1 is a schematic structural diagram of the circuit breaker in the closed state.
  • the circuit breaker provided in the embodiment of the present application includes a casing 1, an operating assembly 2, an arc extinguishing device 3 and a transmission mechanism 4.
  • the operating assembly 2 is rotated and detachably connected to the top of the housing 1, and can be rotatably stored in the accommodating part 11 or rotated to exit the accommodating part 11;
  • the arc extinguishing device 3 includes a In the arc extinguishing chamber 31 located in the accommodating cavity 12 and close to the bottom, the transmission mechanism 4 is responsible for transmitting the first signal from the operating assembly 2 to the rotating wheel 13 along the second direction B to drive the movable contact 14 to move.
  • the transmission mechanism 4 is located close to the top of the casing 1, and the arc extinguishing device 3 is located close to the bottom of the casing 1 and is arranged laterally.
  • the two are arranged in parallel and do not interfere with each other.
  • the The arc extinguishing chamber 31 has a larger volume and can accommodate more grids to improve the breaking reliability of the moving and stationary contacts, and the transmission mechanism 4 drives along the second direction B to avoid interference with other components.
  • the housing 1 has a recessed accommodating portion 11 and an accommodating cavity 12 surrounding the accommodating portion 11.
  • the accommodating cavity 12 can only surround two planes of the accommodating portion 11, or can simultaneously surround three or more planes of the accommodating portion 11.
  • the three planes of the accommodating cavity 12 surrounding the accommodating portion 11 are taken as examples for illustration.
  • the accommodating cavity 12 has a concave structure, and the accommodating portion 11 is located in the concave area of the concave structure and is formed by the accommodating cavity 12.
  • the part 11 and the accommodating cavity 12 are separated by the casing 1, that is, the casing 1 and the three planes of the accommodating part 11 are in contact to form a semi-enclosed structure.
  • the rotating wheel 13 , the movable contact 14 and the arc extinguishing device 3 are all located in the accommodating cavity 12 , the rotating wheel 13 is located at a position close to the top of the casing 1 , and the moving contact 14 is located at a position where the rotating wheel 13 is far from the top of the casing 1 ,
  • the rotating wheel 13 is rotatably connected to the housing 1 and moves synchronously with the movable contact 14.
  • the movable contact 14 is used in conjunction with the stationary contact 15.
  • the circuit breaker When the movable contact 14 is combined with the stationary contact 15, the circuit breaker is in a connected state, namely The closed state of the circuit breaker; when the movable contact 14 is separated from the static contact 15, the circuit breaker is in the open state, that is, the open state of the circuit breaker.
  • the arc extinguishing chamber 31 in the arc extinguishing device 3 is located near the bottom of the housing 1, and the moving contact 14 is located between the rotating wheel 13 and the arc extinguishing chamber 31.
  • the moving contact 14 and the static contact 15 are disconnected, Due to the capacitance between the movable contact 14 and the static contact 15, the insulation between the contacts is broken down and a vacuum arc is generated.
  • the existence of the arc will not only expand the overall fault degree of the circuit system, but also cause damage to the contacts themselves, so the circuit is broken.
  • the arc extinguisher needs to be provided with an arc extinguishing device 3 to reduce the burn-out of the arc to the contacts and to limit the space for arc expansion.
  • the length direction of the arc-extinguishing chamber 31 is nearly parallel to the second direction B, that is, the arc-extinguishing chamber 31 extends along the long-side direction of the circuit breaker. It extends in the height direction, so compared with the existing circuit breaker, on the premise that the overall volume of the circuit breaker is the same, the arc extinguishing chamber 31 in the present application has a larger capacity, and can be installed with more grid plates, thereby improving the Reliability of moving and static contacts during high voltage breaking.
  • the operating assembly 2 is provided in the accommodating portion 12 and is detachably connected to the housing 1 .
  • the operating assembly 2 is used to drive the rotating wheel 13 to rotate on the housing 1 , and a part of the transmission mechanism 4 is located in the accommodating portion 11 for The operation assembly 2 and the rotating wheel 13 are connected by transmission.
  • the operation assembly 2 sends a first signal to the transmission mechanism 4, and the transmission mechanism 4 transmits the first signal to the rotating wheel 13 along the second direction B, so that the movable contact 14 is relatively close to or away from the static Contact 15.
  • the fifth direction E intersects the second direction B, and the size of the included angle between the two directions is not limited in this application, as long as the two directions do not overlap or are parallel to each other.
  • the fifth direction E The second direction B is perpendicular to each other. At this time, the fifth direction E is parallel to the overall length direction of the circuit breaker, and the second direction B is parallel to the height direction of the circuit breaker.
  • the transmission mechanism 4 is located near the top of the casing 1, and the arc extinguishing device 31 is located near the bottom of the casing 1, and the two are arranged in parallel and do not interfere with each other.
  • FIG. 4 is a schematic structural diagram of the transmission mechanism shown in FIG. 1
  • FIG. 5 is a structural schematic diagram of the transmission mechanism and the operation assembly shown in FIG. 1.
  • the transmission mechanism 4 provided in the embodiment of the present application includes: The first link 41 , the second link 42 and the main elastic member 43 , the first link 41 and the second link 42 are rotatably connected through the rotating shaft 44 , and the first signal is transmitted through the first link 41 and the second link 42 To the rotating wheel 13 , one end of the main elastic member 43 is connected to the rotating shaft 44 , and the other end is connected to the operating assembly 2 .
  • first connecting rod 41 is relatively close to the operating assembly 2 , the other end is rotatably connected to the second connecting rod 42 through the rotating shaft 44 , and the end of the second connecting rod 42 away from the first connecting rod 41 is connected to the rotating wheel 13 .
  • the operating assembly 2 and the rotating wheel 13 can also be connected to other positions of the first link 41 and the second link 42 respectively, which is not limited in this application, as long as the transmission direction of the transmission mechanism 4 is along the second The direction B is sufficient.
  • the staff sends a first signal to the main elastic member 43 of the transmission mechanism 4 through the operation component 2, and the first link 41 drives the second link 42 to move together , the rotating wheel 13 rotates, the movable contact 14 is relatively close to or away from the stationary contact 15, and the whole circuit is connected or disconnected.
  • the rotating shaft 44 can be fixedly connected to the first connecting rod 41, or can be fixedly connected to the second connecting rod 42, and can also be rotatably connected to both the first connecting rod 41 and the second connecting rod 42, which is not limited in this application .
  • the overall transmission direction of the first connecting rod 41 and the second connecting rod 42 is along the second direction B, and the moving direction of the rotating shaft 44 is the fifth direction E, that is, in the main elastic member 43 Under the action of the pulling force, the moving direction of the connection between the first link 41 and the second link 42 intersects with the overall transmission direction of the transmission mechanism 4 . close to vertical.
  • the overall length of the transmission mechanism 4 in the second direction B can be reduced, so that the structure of the circuit breaker is more compact so as to save lateral space.
  • the transmission mechanism 4 includes a first link 41, a second link 42 and a main elastic member 43.
  • the first link 41 has a first connection point 411 and a second connection point 412 along its length direction.
  • the connection point 411 is used to rotate around the first specific point 413 ;
  • the second link 42 has a third connection point 421 and a fourth connection point 422 along its own length, and the second connection point 412 and the third connection point 421 are rotated through the shaft 44 connection, the fourth connection point 422 is used to rotate around the second specific point 423;
  • one end of the main elastic member 43 is connected with the rotating shaft 44, and the other end is used to receive external force, wherein the main elastic member 43 applies force to the rotating shaft 44 under the action of the external force,
  • the rotating shaft 44 is moved in a direction intersecting the direction of the line connecting the first connection point 411 and the second connection point 412 .
  • the first connection point 411 , the second connection point 412 , the third connection point 421 and the fourth connection point 422 may be located at different positions of the first link 41 and the second link 42 , which are not limited in this application.
  • the first connection point 411 and the second connection point 412 are respectively located at two ends of the first link 41
  • the third connection point 421 and the fourth connection point 422 are respectively located at the two ends of the first link 41 .
  • the second connection point 412 and the third connection point 421 are connected through the rotating shaft 44 .
  • the motion of the transmission mechanism 4 is divided into two situations.
  • the first situation is that the first connection point 411 on the first link 41 remains fixed, and the end of the main elastic member 43 away from the second link 42 is subjected to When the external force moves, the position of the rotating shaft 44 does not change.
  • the main elastic member 43 releases energy to the rotating shaft 44 and drives the rotating shaft 44 to move relatively, and then the first link 41 and the second link 42 start to rotate, the second connection point 412 on the first link 41 rotates around the first connection point 411, the third connection point 421 on the second link 42 and the second connection point 412 have the same movement trajectory, and the fourth connection point 422 rotates around a second specific point 423 .
  • the rotating shaft 44 rotates around the first connection point 411, and the moving direction of the rotating shaft 44 always intersects with the direction of the connecting line between the first connection point 411 and the fourth connection point 422, and the main elastic member 43 plays the role of transmitting external force
  • the first link 41 and the second link 42 are driven to produce relative displacement.
  • the second case is that the first connection point 411 on the first link 41 can relatively rotate around the first specific point 413. Under the influence of other external force factors, the first connection point 411 rotates around the first specific point 413, and the first connection The second connection point 412 on the rod 41, that is, the position of the rotating shaft 44 deflects with the movement of the first connecting point 411. At this time, the force exerted by the main elastic member 43 on the rotating shaft 44 causes the rotating shaft 44 to be relatively close to the first connecting point in the second direction B.
  • the third connection point 421 on the second link 42 has the same movement trajectory as the second connection point 412 , and the fourth connection point 422 rotates around the second specific point 423 . As in the first case, the moving direction of the rotating shaft 44 always intersects the direction of the line connecting the first connection point 411 and the fourth connection point 422 .
  • the moving direction of the rotating shaft 44 always intersects with the connecting direction of the first connection point 411 and the fourth connecting point 422, that is, the moving direction of the rotating shaft 44 intersects the transmission direction of the entire transmission mechanism 4.
  • the overall transmission direction of the transmission mechanism 4 is nearly parallel to the second direction B, while the moving direction of the rotating shaft 44 intersects with the transmission direction and may even be perpendicular. nearly parallel.
  • this design can reasonably utilize the space structure inside the circuit breaker, thereby reducing the lateral space occupied by the transmission mechanism 4 as a whole in the circuit breaker.
  • the end of the main elastic member 43 away from the rotating shaft 44 is used to rotate around the third specific point 431 , wherein the third specific point 431 , the second connection point 412 and the first connection point 411 are located at the same flat and not collinear.
  • the end of the main elastic member 43 away from the rotating shaft 44 slides relatively along a specific track, and the deflectable angle of the main elastic member 43 relative to the third specific point 431 is determined according to the actual size of the circuit breaker, which is not limited in this application.
  • the main elastic member 43 has a tension state and a reset state, and the length of the main elastic member 43 in the reset state is greater than the length of the first link.
  • the main elastic member 43 can be an elastic member, that is, a spring or an elastic rope. The state of elongation by external force, and the elongation is less than its maximum elastic deformation, so the length of the main elastic member 43 in the stretched state is greater than the length in the reset state, and in this application, the main elastic member 43 is always in a stretched state Therefore, during the movement of the transmission mechanism 4, the length of the main elastic member 43 is always greater than the length of the first link 41.
  • the main elastic member 43 Since one end of the main elastic member 43 coincides with the second connection point 412 on the first link 41, the main elastic member The end of 43 away from the second link 42 is always separated from the first connection point 411 on the first link 41 , that is, there is no interference between the main elastic member 43 and the first link 41 , which improves the overall transmission mechanism 4 . reliability.
  • the end of the main elastic member 43 away from the second connecting rod 42 is used to receive external force. Under the action of the external force, the length of the main elastic member 43 is gradually elongated, and its own elastic force is gradually increased. When the main elastic member 43 is stretched to a specific length, the main elastic member 43 releases energy to the rotating shaft 44 and drives the rotating shaft 44 to move.
  • both ends of the main elastic member 43 are provided with hooks, which are hung on the rotating shaft 44 and the operating assembly 2 through the hooks; in other solutions, the connection can also be realized by bonding or welding.
  • the first specific point 413 and the second specific point 423 are respectively located on both sides of the line connecting the fourth connection point 422 and the rotating shaft 44 .
  • the first specific point 413 is the center of rotation of the first connection point 411
  • the second specific point 423 is the center of rotation of the fourth connection point 422
  • the line connecting the first specific point 413 and the second specific point 423 and the second link 42 At the intersection, the specific positions of the first specific point 413 and the second specific point 423 are determined according to the volume of the circuit breaker and the lengths of the first connecting rod 41 and the second connecting rod 42 , which are not limited in this application.
  • the distance from the second specific point 423 to the rotating shaft 44 is always greater than the distance from the second specific point 431 to the fourth connection point 422 . Since the rotating shaft 44 is mounted on the third connecting point 421 of the second link 42, the distance from the second specific point 423 to the rotating shaft 44 is the same as the distance from the second specific point 423 to the third connecting point 421, that is, the second specific point The distance from 423 to the third connection point 421 is greater than the distance from the second specific point 423 to the fourth connection point 422 . In this scheme, the second specific point 423 is used as the center of the circle, and the distance from the second specific point 423 to the fourth connection point 422 is used as the radius to make a circle. Outside the circumference, that is, the first link 41 will never interfere with the above-mentioned circumference.
  • a rotating wheel 13 and a movable contact 14 connected to the rotating wheel 13 are provided in the housing 1 , and the rotating wheel 13 includes a first rotating part 131 and an outer circumference surrounding the first rotating part 131 .
  • the first rotating part 131 is rotatably arranged on the housing 1
  • the second connecting rod 42 is connected to the outer peripheral part 132 through a fourth connection point 422 , and the first specific point 423 coincides with the first rotating part 131 .
  • the second connecting rod 42 is used to directly drive the rotating wheel 13 to rotate around the first rotating part 131 .
  • the first rotating part 131 can be located at the center of the rotating wheel 13 or eccentrically arranged.
  • the operating assembly 2 sends out a first signal and transmits it to the rotating wheel 13 through the transmission mechanism 4 to drive the movable contact 14 to move.
  • the staff realizes the opening and closing operation by manipulating the operating assembly 2
  • the transmission mechanism 4 realizes the transmission of instructions between the operating assembly 2 and the rotating wheel 13 .
  • the operating assembly 2 is rotatably mounted on the support 21 , and the support 21 is fixedly mounted on the circuit breaker housing 1 .
  • the main elastic member 43 is gradually extended under the driving of the operating assembly 2 , and its own elastic force gradually increases. The main elastic member 43 releases energy to the rotating shaft 44 and drives the rotating shaft 44 to move.
  • the first connecting rod 41 is connected to the locking mechanism 5 through the first connection point 411 , the locking mechanism 5 sends a second signal to the transmission mechanism 4 , and the transmission mechanism 4 drives the rotating wheel 13 to drive the The movable contact 14 moves.
  • the locking mechanism 5 includes a jump buckle 51 and a lock buckle 52 that are locked to each other.
  • the first link 41 is connected to the jump buckle 51 through a first connection point 411 , and the jump buckle 51 is rotatably connected to the support member 21 through a first installation hole 5151 .
  • the first specific point 413 coincides with the first mounting hole 5151 .
  • the locking mechanism 5 When the circuit breaker is in the closed state, the locking mechanism 5 is in the buckled state, and the first connection point 411 remains fixed; when the circuit fails, the locking mechanism 5 is released from the buckled state under the action of external force, and the tripping buckle 51 rotates counterclockwise, The lower part of the first installation hole 5151 pushes the rotating shaft 44 to cause a downward displacement, and the fourth connection point 422 on the second connecting rod 42 starts to rotate around the first rotating part 131 of the rotating wheel 13 .
  • the locking mechanism 5 and the operating assembly 2 are accommodated in the accommodating portion 11 synchronously, and the locking mechanism 5 sends out a second signal and transmits it to the rotating wheel 13 along the second direction B through the transmission mechanism 4 to drive the movable contact 14 sports.
  • the locking mechanism 5 When the circuit breaker is closed, the locking mechanism 5 is in the locked state, the movable contact 14 and the static contact 15 are in closed contact with each other, and the entire circuit breaker has a relatively stable structure; and when the circuit as a whole fails, the interior of the circuit breaker is stabilized.
  • the locking mechanism 5 changes from the buckled state to the tripping state, the locking mechanism 5 sends a second signal to the transmission mechanism 4, and the transmission mechanism 4 drives the rotating wheel 13 to drive the moving contact 14 to move, and the moving contact 14 is far away from the stationary contact 15.
  • the moving contact 14 and the static contact 150 are separated, and the circuit breaker changes from the closed state to the open state.
  • FIG. 6 is an enlarged schematic view of the structure at F in FIG. 1
  • FIG. 7 is a schematic view of the structure of the jump buckle in FIG. 6
  • FIG. 8 is a schematic view of the structure of the lock in FIG. 6
  • 9 is a schematic structural diagram of the traction member in FIG. 6
  • FIG. 10 is a structural schematic diagram of the transition piece in FIG. 6 .
  • the locking mechanism 5 provided in the embodiment of the present application includes a jumper 51 and a lock 52 that can be locked with each other, and the second signal passes through the jumper.
  • the buckle 51 and the lock buckle 52 are transmitted to the transmission mechanism 4 , wherein the contact point of the jump buckle 51 and the lock buckle 52 is located between the arc extinguishing chamber 31 and the transmission mechanism 4 .
  • the jump buckle 51 and the lock buckle 52 are mutually locked to form a stable structure, and the force transmission and relative position locking are completed through the contact point.
  • the position of the contact point between 51 and the lock 52 is constantly changing, but is always between the arc extinguishing chamber 31 and the transmission mechanism 4 , that is, the transmission process of the locking mechanism 5 occurs between the transmission mechanism 4 and the arc extinguishing device 3 .
  • the locking chain formed by the locking mechanism 5 is located below the transmission chain formed by the transmission mechanism 4 and above the arc extinguishing device 3 .
  • the transmission mechanism 4, the locking mechanism 5 and the arc extinguishing device 3 together form a top-to-bottom vertical arrangement structure, and the three are dislocated and do not interfere with each other; in the second direction B Above, the extension direction of the transmission mechanism 4 and the extension direction of the locking mechanism 5 are both transverse, and the transmission directions of both are parallel to the second direction B.
  • the internal components of traditional circuit breakers are usually arranged horizontally, the arc extinguishing device is located on one side of the circuit breaker, the transmission mechanism is arranged next to the arc extinguishing device, and the locking mechanism is located on the side of the transmission mechanism away from the arc extinguishing device.
  • the direction is vertical.
  • the layered arrangement of the transmission chain and the locking chain is adopted in this application, which can make full use of the space structure inside the circuit breaker, the overall structure is more compact, and the gap between the transmission mechanism and the parts of the locking mechanism can be fully utilized. Mutual interference will not occur, improving overall reliability.
  • the locking mechanism 5 includes a transition piece 543 and a traction piece 53 , the latch 52 and the transition piece 543 can be locked with each other, the transition piece 543 and the traction piece 53 can be locked with each other, and the accommodating portion 11 is located in the accommodating cavity 12 away from each other.
  • a release 16 is provided on one side of the rotating wheel 13 , and the release 16 sends a second signal to the traction member 53 .
  • the trip unit 16 includes an overcurrent trip unit 161 and a trip unit actuating rod 162.
  • the traction member 53 is in contact with the trip unit actuating rod 162.
  • the release actuating rod 162 is controlled to be displaced, the traction member 53 moves together with the tripper actuating rod 162 and is unlocked with the transition piece 543 , and then the lock 52 and the jumper 51 are also unlocked successively to the transmission mechanism 4 After sending the second signal, the transmission mechanism 4 transmits the signal to the rotating wheel 13 so that the movable contact 14 and the stationary contact 15 are separated. .
  • the locking mechanism 5 includes a jumper 51 , a lock 52 , a traction member 53 and a linkage assembly 54 .
  • the jumper 51 includes two opposite first side plates 511 in the third direction C, and a connecting plate 512 connecting the same ends of the two first side plates 511.
  • the connecting plate 512 has a first surface opposite in its thickness direction, The second surface 513 and the locking surface 514 connected to the first surface and the second surface 513 , the first side plate 511 includes a mounting ear 515 , and the mounting ear 515 is located at one end of the first side plate 511 away from the connecting plate 512 .
  • the locking buckle 52 is located on the side of the connecting plate 512 away from the mounting ear 515 .
  • the locking buckle 52 includes a locking fitting portion 521 , and a first transmission portion that is staggeredly connected to the locking fitting portion 521 in the fourth direction D via the transition connection portion 522 .
  • the snap-fit portion 521 includes a first side surface 524, a second side surface that are opposite to each other in the fourth direction D, and a snap-fit surface 525 connected to the first side surface 524 and the second side surface, and the transition connection portion 522 is provided with
  • the first escape hole 526 penetrates through itself in the thickness direction, and the locking mating surface 525 at least partially passes through the first escape hole 526 .
  • the traction member 53 includes a base body 531, a second transmission portion 532 and a stepped structure 533 located on opposite sides of the base body 531.
  • the base body 531 is provided with a rotating shaft accommodating portion 534, and the rotating shaft accommodating portion 534 is rotatably connected to the support member 21 after the shaft is installed.
  • the stepped structure 533 includes a first stepped surface 535 and a second stepped surface 536 connected to each other.
  • the second stepped surface 536 is connected to a side of the first stepped surface 535 away from the base body 531 .
  • the linkage assembly 54 is used to connect the latch 52 and the traction member 53, wherein the locking mechanism 5 has a latched state and a tripped state.
  • the jumper 51 When the latched state 5 changes from the tripped state to the latched state, the jumper 51 is clockwise from the initial position Rotating, the lock catch 52 rotates counterclockwise so that the locking mating surface 525 abuts against the locking surface 514, the lock catch 52 rotates the second transmission part 532 clockwise to the first position through the linkage assembly 54; the locking mechanism 5 is in the locked state
  • the second transmission part 532 rotates counterclockwise from the first position, and rotates the jumping buckle 51 clockwise through the linkage assembly 54 to lock the matching surface 525 away from the locking surface 514, and the jumping buckle 51 rotates counterclockwise. to the initial position.
  • the jumping buckle 51 is used to connect with the transmission mechanism 4, and a substantially U-shaped structure is formed by two oppositely arranged first side plates 511 and through the connecting plate 512.
  • the locking mechanism 5 transmits the second signal to the transmission mechanism 4 through the jumping buckle 51,
  • the first mounting hole 5151 is provided on the mounting ear 515 of the jumper 5 , and the jumper 51 is rotatably connected to the support 21 through the first mounting hole 5151 .
  • the locking buckle 52 is used to form a locking structure with the jumping buckle 51, and is rotatably connected to the support member 21 through the first transmission part 523.
  • One end of the first transmission part 523 along the fourth direction D is provided with a transmission shaft, and the first transmission part 523
  • the transmission shaft is rotatably mounted on the support member 21, and there may be only one transmission shaft or two transmission shafts. That is, the lock catch 52 may be rotatably connected to only one side of the support member 21, or may be rotated with both sides of the support member 21. connection, which is not limited in this application.
  • the traction member 53 is used to transmit the second signal sent by the release 16, and is rotatably connected to the support member 21 through the rotating shaft accommodating portion 534.
  • the second transmission portion 532 is disposed adjacent to the release 16 for receiving the release.
  • the stepped structure 533 is located on the side of the traction member 53 away from the second transmission portion 532, and is used to form a locking mechanism with the linkage assembly 54.
  • the locking mechanism 5 is used in conjunction with the operating assembly 2 and the release 16.
  • the operating assembly 2 can send a third signal to the locking mechanism 5 and drive the jumper 51 to rotate, and the locking mechanism 5 changes from the tripped state to the buckled state;
  • the trip unit 16 sends out a second signal and transmits power to the locking mechanism 5 through the traction member 53 , and the locking mechanism 5 changes from the latched state to the tripped state.
  • the locking mechanism 5 changes from the tripped state to the locked state.
  • the specific working process is as follows: the operating assembly 2 drives the jumper 51 to rotate clockwise around the first installation hole 5151 on the installation ear 515 , and the jumper 51 rotates clockwise. Rotate and press down the lock catch 52, the lock catch 52 starts to rotate counterclockwise under the pressure of the jump catch 51 and the pull of the first telescopic piece 541 in the linkage assembly 54, so that the locking mating surface 525 abuts the locking surface 514 , the jump buckle 51 and the lock buckle 52 realize the first re-locking.
  • the transition piece 543 in the linkage assembly 54 rotates clockwise and forms a second re-lock with the lock catch 52.
  • the second transmission part 532 rotates clockwise to the first position under the action of the linkage assembly 54, and forms a second relock with the transition piece 543. Triple lock.
  • the jump buckle 51 , the lock buckle 52 , the traction member 53 and the linkage assembly 54 form a triple locking structure with each other, and the locking mechanism 5 is in a locked state as a whole.
  • the buckled state since the interior of the buckled state is in a completely locked state, even if the operating assembly 2 continues to send a third signal to the locking mechanism 5, it cannot drive the locking mechanism 5 to move, that is, the operating assembly 2 can only control the locking mechanism 5 from the tripping state.
  • the locked state is changed, and the locking mechanism 5 cannot be controlled from the locked state to the released state.
  • the linkage assembly 54 includes a first telescopic piece 541 , a second telescopic piece 542 and a transition piece 543 .
  • the transition piece 543 is located on the side of the second side surface away from the first side surface 524.
  • the shape of the transition piece 543 is a Y shape.
  • the transition piece 543 includes a first locking end, a second locking end and a connecting end arranged at intervals. The stop end abuts against the second side surface, and the second locking end abuts against the stepped structure 533 .
  • One end of the first telescopic piece 541 is connected to the first transmission part 523 of the lock 52, and the other end is connected to the connecting end of the transition piece 543.
  • the transition piece 543 rotates clockwise under the action of the first telescopic piece 541, and the first latch The end stop is rotated from the second position to the third position.
  • One end of the second telescopic member 542 is connected to the base body 531 of the pulling member 53 .
  • the pulling member 53 rotates clockwise under the action of the second telescopic member 542 so that the The second locking end is moved by the first stepped surface 535 and locked on the second stepped surface 536 .
  • the transition piece 543 is used for connecting with the lock catch 52 and the pulling piece 53, and forms a locking structure with the locking catch 52 through the first locking end, and forms another locking structure with the pulling piece 53 through the second locking end;
  • the piece 541 is used for driving the rotation of the transition piece 543
  • the second telescopic piece 542 is used for driving the rotation of the traction piece 53 .
  • the transition piece 543 has a Y-shaped structure, the first locking end, the second locking end and the connecting end are located at three end positions of the transition piece 543 respectively, and the first locking end and the second locking end are located at three end positions of the transition piece 543 respectively.
  • the sides are in contact with each other.
  • the second locking end is in contact with the traction member 53, and when the locking mechanism 5 is in the buckled state, the second locking end is in contact with the second stepped surface 536; when the locking mechanism 5 is in the released state, the second locking end The ends are in contact with the first stepped surface 535 .
  • One end of the first telescopic piece 541 is connected with the first transmission part 523 of the lock catch 52 , and the other end is connected with the connecting end of the transition piece 543 .
  • the first telescopic piece 541 is used to drive the lock catch 52 and the transition piece 543 .
  • One end of the second telescopic member 542 is connected to the base body 531 of the pulling member 53 , and the other end is connected to the support member 21 , and the specific position is determined according to the internal structure of the circuit breaker.
  • the pulling force ensures that when the locking mechanism 5 is in the locked state, the pulling member 53 will not shake and separate from the transition member 543 .
  • the first side plate 511 includes a transmission arm 516 , the transmission arm 516 is located between the mounting ear 515 and the end of the first side plate 511 connected to the above-mentioned connecting plate 512 , and the transmission arm 516 is connected to the locking surface 514 Co-located on the same side of the mounting ears 515, the transmission arm 516 includes a first abutting surface 5161 and a second abutting surface 5162 connected at an angle, and the first abutting surface 5161 and the second abutting surface 5162 are formed for clamping. stop.
  • the first connection point 411 of the first link 41 is rotatably connected with the transmission arm 516 , the jumping buckle 51 drives the first link 41 to move through the transmission arm 516 , and the locking surface 514 is used for the locking cooperation with the second locking mechanism 5 .
  • the surfaces 525 abut to form a locking structure.
  • the transmission arm 516 and the locking surface 514 are both located on one side of the mounting ear 515 . In the structure shown in FIG.
  • the transmission arm 516 and the locking surface 514 are both located on the right side of the mounting ear 515 , the right side of the mounting ear 515 is provided with a limit shaft 17, the limit shaft 17 is fixed on the support 21, and the limit shaft 17 is used to limit the first link 41 when tripping occurs, thereby increasing the opening speed.
  • the jump buckle 51 includes a guide plate 517, the guide plate 517 is connected to the connecting surface of the connecting plate 512 opposite to the locking surface 514, and the connecting surface extends away from the locking surface 514, the guide plate 517 has an arc-shaped guide surface 518 on the side away from the mounting ear 515.
  • the guide plate 517 abuts on the first side surface 524 through the arc-shaped guide surface 518; the first side surface 524 is provided with a protrusion 520,
  • the arc guide surface 518 abuts against the protrusion 520 .
  • the guide plate 517 contacts the lock buckle 52 to play a guiding role, and the design of the arc guide surface 518 can make the relative sliding between the jump buckle 51 and the lock buckle 52 more stable smooth.
  • a through hole 528 is defined on the first side surface 524 , and the first locking end is locked in the through hole 528 when the first locking end is located at the second position.
  • the size of the through hole 528 is determined by the size of the first locking end.
  • the first transmission part 523 has a second avoidance hole 527 penetrating itself along the fourth direction D, and the second avoidance hole 527 communicates with the first avoidance hole 526 .
  • the locking surface 514 and the locking mating surface 525 gradually approach and finally fit tightly. It will enter into the first avoidance hole 526 and the second avoidance hole 527 , so as to prevent the locking surface 514 from directly contacting the locking buckle 52 rigidly, thereby improving the service life of the jumping buckle 51 .
  • the transition piece 543 includes two Y-shaped splints 544 disposed opposite to each other, and the Y-shaped splint 544 includes a first free end 5441 , a second free end 5442 and a third free end 5443 , and the two first free ends 5441 A first shaft rod 545 is passed through the end 5441, and a second shaft rod 546 is passed through the two second free ends 5442. The part of the first shaft rod 545 located between the two Y-shaped splints 544 is sleeved with a roller 547.
  • the roller 547 rolls between the second position and the third position, the part of the second shaft 546 located between the two Y-shaped splints 544 moves between the first step surface 535 and the second step surface 536, the first telescopic piece 541 Hanging on the third free end 5443 .
  • the transition piece 543 is in contact with the lock catch 52 through the roller 547, and the roller 547 can rotate freely relative to the first shaft 545, so the point contact between the lock catch 52 and the transition piece 543 can be adjusted by the rotation of the roller 547 , to avoid damage caused by rapid contact between the two.
  • the third free end 5443 is provided with a mounting slot 548 for hooking the first telescopic piece 541, and the connection between the first telescopic piece 541, the lock catch 52 and the transition piece 543 can be achieved in many ways, In the present application, hooks are provided at both ends of the first telescopic piece 541 , the first transmission part 523 of the lock 52 and the connecting end of the transition piece 543 are both provided with corresponding installation grooves 548 , and the two ends of the first telescopic piece 541 are respectively Hooked on the lock catch 52 and the transition piece 543 .
  • the stepped structure 533 includes an arc-shaped transition surface 537 located on the first stepped surface 535 and the second stepped surface 536 .
  • the transition piece 543 In the buckled state, the transition piece 543 is in contact with the second stepped surface 536 ; in the released state, the transition piece 543 is in contact with the first stepped surface 535 .
  • the transition piece 543 starts from the first stepped surface 535 and reaches the second stepped surface 536 via the arc-shaped transition surface 537, or starts from the second stepped surface 536 and passes through the arc-shaped transition.
  • the surface 537 reaches the first stepped surface 535, and the arc-shaped transition surface 537 plays a role of smooth transition during this process, ensuring that the movement between the transition piece 543 and the traction piece 53 is relatively stable.
  • the locking mechanism 5 surrounds a concave space
  • the operating assembly 2 slides in the concave portion of the concave space and sends a first signal to the transmission mechanism 44 .
  • the transition piece 543 is located inside the concave space and below the concave portion
  • the jump buckle 51 and the lock catch 52 are located on one side of the transition piece 543
  • the traction piece 53 is located on the other side of the transition piece 543
  • the operating assembly 2 can be opposite in the concave portion Sliding and sending a first signal to the transmission mechanism 4 makes the movable contact 14 move, or sending a third signal to the locking mechanism 5 to make the locking structure change from a tripping state to a locking state.
  • the arrangement of the locking members in the locking mechanism 5 can also adopt other methods other than those in the present application, as long as the locking mechanism 5 surrounds and forms a concave space for the relative movement of the operating assembly 2 . , which is not limited in this application.
  • FIG. 11 is a schematic structural diagram of the operating assembly shown in FIG. 1
  • FIG. 12 is a structural schematic diagram of the support member in FIG. 11
  • FIG. The operating mechanism in the embodiment of the present application includes an operating assembly 2 , a transmission mechanism 4 and a locking mechanism 5 .
  • the operating assembly 2 includes a supporting member 21 and a rotating member 22 rotatably mounted on the supporting member 21 .
  • the rotating member 22 has a first limit and second limit.
  • the locking mechanism 5 includes a jumper 51, a lock 52, a traction member 53 coupled with the release 16, and a transition piece 543 connecting the lock 52 and the traction member 53.
  • the locking mechanism 5 has a tripping state and a latching state, When the locking mechanism 5 is in the locked state, the jumper 51 and the lock 52 form the first locking position, the transition piece 543 and the lock 52 form the second locking position, and the transition piece 543 and the traction member 53 form the third locking position .
  • the transmission mechanism 4 includes a first link 41 , a second link 42 , a rotating shaft 44 connecting the first link 41 and the second link 42 , and a main elastic member 43 . One end of the first link 41 is provided with a jumper 51 .
  • the pivoted first connection point 411 the other end of the first link 41 has a second connection point 412 connected with the second link 42 , and one end of the second link 42 has a first link 41 connected with the first link 41 .
  • There are three connection points 421 the other end of the second link 42 has a fourth connection point 422 connected with the rotating wheel 13 , and the rotating shaft 44 is disposed between the second connection point 412 and the third connection point 421 .
  • One end of the main elastic member 43 has a first installation position connected with the rotating member 22 , and the other end has a second installation position connected with the rotating shaft 44 .
  • a plane rectangular coordinate system is established with the center of the rotating wheel 13 as the origin, and the length direction of the circuit breaker is the X-axis direction.
  • the arrangement forms a transmission chain; the first locking position, the second locking position and the third locking position are sequentially arranged along the positive direction of the X axis to form a locking chain.
  • the sequential arrangement in the negative direction of the X-axis mentioned in this embodiment refers to the arrangement order of the X-axis coordinates of the first installation position, the first connection point 411, the rotating shaft 44, and the fourth connection point 422, rather than restricting the transmission chain in a straight line , that is, the first installation position, the first connection point 411 , the rotating shaft 44 , and the fourth connection point 422 may have the same Y-axis coordinate, or may have different Y-axis coordinates.
  • the sequential arrangement in the positive direction of the X-axis refers to the arrangement sequence of the X-axis coordinates of the first locking position, the second locking position, and the third locking position, rather than restricting the locking chain on a straight line.
  • the operating mechanism for the circuit breaker in the embodiment of the present application forms a transmission chain and a locking chain by setting the operating assembly 2, the transmission mechanism 4 and the locking mechanism 5, and the arc extinguishing device is arranged below the Y-axis direction, that is, the arc extinguishing device 3 is also arranged along the Y axis.
  • the circuit breaker extends in the length direction. Compared with the arc extinguishing device extending in the height direction of the circuit breaker in the prior art, the arc extinguishing device 3 of the present application can occupy a larger space, thereby being able to break higher short-circuit currents.
  • the locking chain is located below the drive chain in the Y-axis direction. This setting saves more space.
  • the second locking position and the third locking position are located on both sides of the first installation position.
  • the first limit position is the limit position at which the rotating member 22 rotates clockwise
  • the second limit position is the limit position at which the rotating member 22 rotates counterclockwise.
  • the operating assembly 2, the locking mechanism 2 and the main elastic member 43 are located on the right side of the Y axis, the first connection point, the second connection point and the third connection point are located on the right side of the Y axis, and the fourth connection point is located on the right side of the Y axis.
  • the connection point can move back and forth on both sides of the Y axis, and the rotating shaft 44 can move back and forth on both sides of the X axis.
  • the operating assembly 2 includes a support member 21 , a rotating member 22 and a handle 23 .
  • the support 21 includes two sub-side plates 211 opposite in the first direction A, and the sub-side plates 211 have a recessed portion penetrating itself along the first direction A and formed by one end of the sub-side plate 211 being recessed toward the central area of the sub-side plate 211 . 212.
  • the rotating member 22 is rotatably connected to the sub-side plate 211 and can partially rotate and extend into the recess 212.
  • the rotating member 22 includes two rotating plates 221 facing each other in the first direction A, and a hanger located between the two rotating plates 221.
  • the connecting portion 222 and the clamping portion 223 are surrounded by two rotating plates 221 to form an accommodation space, and the two sub-side plates 211 are sandwiched between the two rotating plates 221 , and the rotating plate 221 has a rotating shaft connection for connecting the sub-side plates 211
  • the end 2211 and the rotating end 2213 opposite to the connecting end 2211 of the rotating shaft, the clamping part 223 and the hooking part 222 are sequentially arranged on the rotating end 2213 in the direction in which the rotating plate 221 rotates into the concave part 212, and the clamping part 223 has a direction toward the accommodating space.
  • the first clamping surface and the second clamping surface 2232 are connected at an angle, and the first clamping surface and the second clamping surface 2232 are used for clamping the jumper 51 .
  • the hook portion 222 is used to hook the main elastic member 43 of the circuit breaker.
  • the handle 23 is mounted on the rotating end 2213 and is located on the side of the engaging portion 223 away from the hooking portion 222 .
  • the rotating end 2213 is provided with a through hole penetrating through itself along the first direction A, and the handle 23 is fixedly connected to the rotating plate 221 through the through hole.
  • the two are connected by means of screw connection. Of course, they can also be connected by means of riveting, bonding and the like.
  • the lock catch 52 and the pulling member 53 are located on two sides of the recessed portion 212 respectively, and are rotatably mounted on the support member 21 .
  • the transition piece 53 is positioned below the recessed portion 212 in the Y-axis direction.
  • the locking catch 52 and the pulling member 53 are arranged on both sides of the recessed portion 212, and the transition piece 53 is arranged on the lower side of the recessed portion 212, so that the space can be fully utilized and the volume of the circuit breaker can be reduced.
  • the support 21 includes a fixing pin 214 mounted on the sub-side plate 211 , the fixing pin 214 is provided with a rolling wheel 215 , and the connecting end 2211 of the rotating shaft has an arc-shaped clip that is clamped on the outer circumference of the rolling wheel 215 . Junction 2212.
  • the fixed pin 214 is provided with a rolling wheel 215 to make the rotating plate 221 more flexible when rotating.
  • the two sub-side boards 211 are respectively provided with a fixing pin 214 .
  • one fixing pin 214 may also be provided together on the two sub-side plates 211 .
  • the hooking portion 222 includes a body 2221, and the body 2221 has a shaft pin placement groove 2222 extending in the first direction A and having an opening away from the accommodating space.
  • the through hole 2223 of the main elastic member 43 is penetrated.
  • the shaft pin placement groove 2222 and the through hole 2223 are provided to facilitate the attachment of the main elastic member 43 .
  • the engaging portion 223 has a limiting surface 2233 disposed away from the first engaging surface, and the handle 23 abuts against the limiting surface 2233 .
  • the limiting surface 2233 By arranging the limiting surface 2233 at the back of the first engaging surface, it is convenient for the handle 23 to provide support and limiting during installation, so as to save time and effort during the installation process.
  • the engaging portion 223 has an escape surface 2231 that is disposed away from the second engaging surface 2232 and connected to the limiting surface 2233
  • the attaching portion 222 has an outer surface 2226 that is away from the accommodating space. 2231 is located between the limit surface 2233 and the outer surface 2226, the angle formed by the avoidance surface 2231 and the limit surface 2233 is ⁇ 1 , and the angle formed by the avoidance surface 2231 and the outer surface 2226 is ⁇ 2 , where 90° ⁇ 1 ⁇ 2 .
  • the shape of the rotating plate 221 is a fan shape, and the rotating end 2213 includes an arc edge.
  • the shape of the recessed portion 212 is a matching arc.
  • the hooking portion 222 is provided at the end of the arc-shaped side that rotates into the recessed portion 212, and the hooking portion 222 has a first end 2224 and a second end 2225 opposite in the direction of rotation, and the sub-side
  • the plate 211 has a side wall 213 surrounding the concave portion 212 .
  • the rotating member 22 rotates into the concave portion 212
  • the second end 2225 of the hook portion 222 can abut against the side wall 213 .
  • the arc-shaped edge of the rotating end 2213 only enters at one end during the process of rotating into the recessed portion 212 , and the hooking portion 222 is arranged at this end.
  • the main elastic member 43 can get the maximum stretch and provide enough elastic force for the subsequent process.
  • the first end 2224 of the hooking part 222 is connected to the clipping part 223 , and the clipping part 223 is fixedly connected to the sub-side board 211 through the hooking part 222 .
  • the clamping portion 223 is connected to the sub-side plate 211 through the hooking portion 222 , and this connection method is convenient for processing and manufacturing, and the manufacturing cost is low.
  • the clamping portion 223 and the hooking portion 222 are integrally formed, and the hanging portion 222 and the turning plate 221 are integrally formed.
  • the engaging portion 223 is fixedly connected to the rotating plate 221
  • the hooking portion 222 is fixedly connected to the rotating plate 221 .
  • the hook portion 222 has a third end and a fourth end opposite in the first direction A, the third end and the fourth end are respectively provided with a latch extending along the first direction A, and the rotating end
  • the 2213 is provided with a plug extending along the first direction A, the plug is provided with an insertion hole, and the plug is in an interference fit with the plug hole.
  • the pin includes a plurality of first sub-pins and a plurality of second sub-pins, the plurality of first sub-pins are arranged at intervals along the extending direction of the arc edge, and the plurality of second sub-pins The columns are arranged at intervals along the arc edge in the direction of the connecting end 2211 of the rotating shaft. Setting the first sub-post and the second sub-post facilitates adjustment of the specific positions of the hooking portion 222 and the clamping portion 223 relative to the turning plate 221, so as to be adjusted according to different models of circuit breakers or different needs.
  • the position of the hooking portion 222 can be slightly adjusted outward along the direction from the connecting end 2211 of the rotating shaft to the arc edge, thereby stretching The main elastic member 43 makes it meet the elastic force requirement.
  • FIG. 14 is a schematic diagram of connection of three circuit breakers provided by an embodiment of the present application.
  • the circuit breaker of the present application can be used in series.
  • the operating assembly 2 can be installed on any one of them, and the connecting shaft can extend to any one circuit breaker and drive the rotating wheels 13 of other circuit breakers to rotate, so that a connection can be achieved through one
  • the shaft enables the control of multiple circuit breakers.
  • other circuit breakers can be set as circuit breakers with other protection functions, such as overload protection or negative pressure protection.
  • the operating assembly 2 is first connected to the transmission mechanism 4 through the main elastic member 43.
  • the fourth connection point 422 on the second link 42 is not connected to the rotating wheel 13, so the second link 42 free activities.
  • one end of the main elastic member 43 is connected to the operating assembly 2, and the other end is connected to the rotating shaft 43. Since the second connecting rod 42 is in a movable state, the main elastic member 43 can be connected to the operating assembly 2 without stretching.
  • the operating assembly 2 can be rotated and installed on the accommodating portion 11 , and finally the operating assembly 2 can be fixed on the accommodating portion 11 by means of bolts or the like.
  • the main elastic member 43 in the embodiment of the present application does not need to be stretched too long, and the whole installation process is simple and fast, and can be operated by one person.
  • a stationary contact 15 is provided in the accommodating cavity 12 , the stationary contact 15 is located on one side of the movable contact 14 , and the rotating wheel 13 is used to drive the movable contact 14 to move to make the movable contact 14 approach or away from the static contact 15.
  • the arc extinguishing device 3 further includes a static contact arc striking member 151 and a movable contact arc striking member 141 , and the static contact arc striking member 151 is located on the side of the static contact 15 away from the movable contact 14 , The movable contact arc striking member 141 is disposed on the side of the movable contact 14 away from the stationary contact arc striking member 151 .
  • the movable contact arc striking member 141 and the static contact arc striking member 151 are respectively located on both sides of the movable contact 14, and the static contact 15 is installed on the static contact arc striking member 151.
  • the moving contact The head 14 abuts on the moving contact arc striking member 141; in the closed state, the moving contact 14 is separated from the moving contact arc striking member 141, and is in contact with the static contact 15 located on the static contact arc striking member 151. connect.
  • the dissociation device 18 At the positions of the movable contact arc striking member 141 and the static contact arc striking member 151 close to the bottom of the housing 1 are installed the dissociation device 18 , the moving contact arc striking member 141 , the static contact arc striking member 151 and the dissociation device 18 is enclosed to form an arc-extinguishing chamber 31, and an arc-extinguishing grid sheet can be installed in the arc-extinguishing chamber 31, wherein the arc-extinguishing grid sheet is not shown in the figure, and the side of the dissociation device 18 away from the arc-extinguishing chamber 31 is provided with an exhaust gas.
  • the specific arrangement of the arc-extinguishing grid, the moving contact arc striking member 141, the static contact arc striking member 151 and the dissociation device 18 can also adopt a different method from the structure shown in the figure, which is not discussed in this application. limited.
  • the circuit breaker is located at the two ends of the casing 1 along the second direction B, and is further provided with a wiring board 10.
  • the wiring board 10 is used to connect with an external circuit.
  • the wiring board 10 includes a first wiring board 101 and a second wiring board 10.
  • Wiring board 102 the first wiring board 101 is electrically connected with the movable contact 14, and the electrical connection can be in the form of a soft connection or connected by other devices, and the second wiring board 102 is not only electrically connected with the static contact arc striking member 151 but also with
  • the trip unit 16 is electrically connected, and the trip unit 16 can sense whether the external circuit is in normal operation through the second wiring board 102. When the circuit fails, the trip unit 16 moves the locking mechanism 5 and makes the movable contact 14 and the static The contacts 15 are separated to ensure circuit safety.
  • the circuit breaker in the present application can be divided into three stages according to the state of use, namely the tripping state, the latching state and the closing state, wherein in the tripping state and the latching state, the moving contact 14 and the static contact 15 are both Not contacted.
  • the circuit breaker switches between the closed state and the buckled state.
  • the moving contact 14 and the stationary contact 15 are not in contact and the locking mechanism 5 is also in an unbuckled state; the staff sends a third signal to the locking mechanism 5 through the control operation assembly 2, and the locking mechanism 5 becomes In the buckled state, the circuit breaker as a whole changes from the tripped state to the buckled state.
  • the movable contact 14 is always in contact with the movable contact arc striking member 141;
  • the signal can make the movable contact 14 move closer to and contact the stationary contact 15, at this time the locking mechanism 5 remains in the buckled state, the circuit breaker as a whole changes from the buckled state to the closed state, and the entire circuit is connected.
  • the trip unit 16 detects a circuit failure, the trip unit 16 works and drives the locking mechanism 5 to move, the locking mechanism 5 releases the locked state and sends a second signal to the transmission mechanism 4, so that the rotating wheel 13 drives the moving contact 14 Away from the static contact 15, the circuit breaker changes from the closed state to the tripped state again, and the entire circuit is disconnected.
  • the normal opening process of the circuit breaker in this application is the tripping state - the buckled state - the closing state.
  • the manual control operation component 2 sends a first signal to the transmission mechanism 4, so that the moving contact The head 14 and the static contact 15 are separated, and the entire circuit is disconnected, but during this process, the locking mechanism 5 is still in the buckled state and has not changed, that is, the state of the circuit breaker changes from the closed state to the buckled state.
  • Figure 1 Figure 2 and Figure 3 respectively show the tripping state, the latching state and the closing state of the circuit breaker.
  • the lateral direction of the circuit breaker, the Y axis is the longitudinal direction of the circuit breaker, the X axis and the Y axis are separated into a total of four quadrant spaces. And the closing state is described in detail.
  • FIG. 1 is a schematic structural diagram of the circuit breaker tripping state.
  • the locking mechanism 5 is in an unfastened state
  • the arc-shaped guide surface 518 of the jumper 51 abuts on the protrusion of the first side surface 524, and the jumper 51 is in the initial position.
  • the first locking end of the transition piece is located in the through hole 528 , and the second locking end abuts against the first stepped surface 535 .
  • the first telescopic member 541 is in a stretched state and has elastic potential energy.
  • the second telescopic member 542 is in a stretched state and has elastic potential energy.
  • the first connection point 411 of the transmission arm 516 and the jumping buckle 51 is located in the first quadrant
  • the rotating shaft 44 connecting the first link 41 and the second link 42 is located in the fourth quadrant
  • the second link 42 and the fourth link of the rotating wheel 13 are located in the fourth quadrant.
  • the connection point 422 is located in the first quadrant, at this time, the movable contact 14 abuts on the movable contact arc striking member 141 and is located in the third quadrant
  • the stationary contact 15 is located in the fourth quadrant and separated from the movable contact 14 .
  • FIG. 2 is a schematic structural diagram of the circuit breaker in the buckled state.
  • the locking mechanism 5 is in the buckled state.
  • the operating assembly 2 rotates clockwise to drive the locking mechanism 5 to jump in the middle.
  • the buckle 51 rotates clockwise. Since the jump buckle 51 is no longer in contact with the protrusion of the lock buckle 52, the energy of the first telescopic piece 541 is released, and the lock buckle 52 rotates counterclockwise under the elastic force of the first telescopic piece 541, and is then locked.
  • the mating surface 525 is in contact with the locking surface 514, and the main elastic member 43 is in a stretched state at this time, and the main elastic member 43 exerts a pulling force on the jumping buckle 51 through the first connecting rod 41, so that the jumping buckle 51 has a counterclockwise movement. trend.
  • the transition piece rotates clockwise under the elastic force of the first telescopic piece 541, and its first locking end moves from the second position to the third position.
  • the second telescopic piece 542 releases energy, driving the traction piece to rotate clockwise and
  • the second transmission portion 532 rotates to the first position, so that the second locking end is moved by the first stepped surface 535 and locked on the second stepped surface 536 .
  • the first link 41 will move with the jumper 51, and the first connection point 411 rotates clockwise but is still located in the first quadrant.
  • the first connection point 411 and X The distance between the shafts is closer, and the rotating shaft 44 moves downward under the driving of the first connecting rod 41, and the rotating shaft 44 is at the lowest position in the locked state.
  • the fourth connection point 422 is still located in the first quadrant and does not have any displacement, that is, the rotating wheel 13 does not rotate, and the moving contact 14 still abuts on the moving contact arc-leading member 141 and is in contact with the static contact
  • the head 15 is separated, and the inside of the circuit breaker is always kept open.
  • FIG. 3 is a schematic structural diagram of the circuit breaker in the closed state.
  • the locking mechanism 5 is in the buckled state.
  • the operating assembly 2 rotates the main elastic member 43 counterclockwise to move together.
  • the stretching amount of the main elastic member gradually increases, the pulling shaft 44 moves upward, and then the stretching amount of the main elastic member 43 gradually decreases, the rotating shaft 44 moves from the fourth quadrant to the first quadrant, and the second link 42 follows the rotating shaft 44.
  • the fourth connection point 422 rotates counterclockwise to move from the first quadrant to the second quadrant, that is, the rotating wheel 13 starts to rotate counterclockwise and drives the movable contact 14 to move, and the movable contact 14 gradually approaches and finally contacts the fourth Static contacts 15 on the quadrant.
  • the first connection point 411 for connecting with the jumper 51 is always in the first quadrant and remains fixed, and the first link 41 goes around the first connection point 411 Turn clockwise.
  • the operating assembly 2 When the circuit breaker needs to be disconnected manually, the operating assembly 2 is manually driven to rotate clockwise, and the extension of the main elastic member 43 gradually increases.
  • the main elastic member 43 begins to release the elastic force and pulls the rotating shaft 44 to move downward. After that, the extension of the main elastic member 43 gradually decreases, the rotating shaft 44 moves from the first quadrant to the fourth quadrant, and the second connecting rod 42 follows the rotating shaft.
  • the fourth connection point 422 rotates clockwise to move from the second quadrant to the first quadrant, that is, the rotating wheel 13 rotates clockwise and drives the moving contact 14 away from the stationary contact 15, and the moving contact 14 finally abuts on the On the movable contact arc striking member 141 on the third quadrant, the locking mechanism 5 does not move during this process, and the circuit breaker changes from the closed state to the buckled state.
  • the contacts of the trip unit 16 are displaced to drive the traction member 53, the traction member 53 rotates counterclockwise, and the trip button 51 acts on the lock button 52 at the position of the locking surface, so that the lock
  • the buckle 52 rotates clockwise and presses down the roller 547 , so that the transition piece 543 rotates counterclockwise until it enters the first through hole 528 , and then the second locking end abuts on the first stepped surface 535 .
  • the counterclockwise rotation of the jumper 51 drives the first connecting rod 41 to move together, the first connecting point 411 rotates counterclockwise away from the X axis, the rotating shaft 44 moves downward and moves from the first quadrant to the fourth quadrant, and the second connecting rod 42 follows the rotating shaft 44 move together, the fourth connection point 422 rotates clockwise to move from the second quadrant to the first quadrant, that is, the rotating wheel 13 rotates clockwise and drives the moving contact 14 away from the stationary contact 15, and the moving contact 14 finally abuts on the On the moving contact arc striking member 141 on the third quadrant.
  • the locking mechanism 5 the movable contact 14 and the stationary contact 15 are separated, and the circuit breaker changes from the closed state to the tripped state.
  • the transmission mechanism in this application is a transverse transmission and the transmission direction is parallel to the length direction of the arc-extinguishing chamber. Therefore, under the premise that the overall volume of the circuit breaker is constant, the size of the arc-extinguishing chamber is designed to be larger, and it can be avoided. Interference between the transmission mechanism and other components improves overall reliability.

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Abstract

一种用于断路器的操作机构,包括操作组件(2)、传动机构(4)和锁定机构(5),操作组件(2)包括支撑件(21)和转动安装于支撑件(21)的转动件(22),转动件(22)具有在转动方向上的第一极限位和第二极限位。用于断路器的操作机构通过设置操作组件(2)、传动机构(4)和锁定机构(5)形成传动链和锁定链,灭弧装置(3)设置于下方,即灭弧装置(3)沿断路器的长度方向延伸,相对于现有技术中沿断路器高度方向延伸的灭弧装置,本申请的灭弧装置(3)能够占据更大的空间,进而能够分断更高的短路电流。

Description

用于断路器的操作机构
相关申请的交叉引用
本申请要求享有于2021年3月5日提交的名称为“用于断路器的操作机构”的中国专利申请202110246059.9的优先权,该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及断路器技术领域,特别是涉及一种用于断路器的操作机构。
背景技术
断路器可用来分配电能,不频繁地启动异步电动机,对电源线路及电动机等实行保护,当它们发生严重的过载或者短路及欠压等故障时能自动切断电路,而且在分断故障电流后一般不需要变更零部件,因此获得了广泛的应用。断路器一般由触头机构、灭弧装置、操作机构、脱扣器、外壳等构成。
现有操作机构和灭弧装置都是在断路器的长度方向上相对设置,即灭弧装置沿断路器的高度方向延伸,而长度一般大于高度,致使断路器中灭弧装置所占面积较小,从而灭弧装置难以分断高的短路电流。
发明内容
本申请实施例提供一种用于断路器的操作机构,以至少解决现有的断路器存在操作机构所占面积大导致灭弧装置所占面积小而难以分断高的短路电流的问题。
一方面,本申请实施例提供了一种用于断路器的操作机构,连接于转动轮,所述操作机构包括操作组件、传动机构和锁定机构,所述操作组件包括支撑件和转动安装于所述支撑件的转动件,所述转动件具有在转动方 向上的第一极限位和第二极限位;
所述锁定机构包括跳扣、锁扣、与脱扣器耦合连接的牵引件、以及连接所述锁扣和所述牵引件的过渡件,所述锁定机构具有脱扣状态和扣住状态,所述锁定机构处于扣住状态时,所述跳扣和所述锁扣形成第一锁止位,所述过渡件与所述锁扣形成第二锁止位,所述过渡件与所述牵引件形成第三锁止位;
所述传动机构包括第一连杆、第二连杆、连接所述第一连杆和所述第二连杆的转轴以及主弹性件,所述第一连杆的其中一端具有与所述跳扣枢接的第一连接点,所述第一连杆的另一端具有与第二连杆连接的第二连接点,所述第二连杆的其中一端具有与所述第一连杆连接的第三连接点,所述第二连杆的另一端具有与所述转动轮连接的第四连接点,所述转轴设置于所述第二连接点和所述第三连接点之间;所述主弹性件的其中一端具有与所述转动件连接的第一安装位,另一端具有与所述转轴连接的第二安装位;
以转动轮的中心为原点建立平面直角坐标系,以所述断路器的长度方向为X轴方向,所述第一安装位、所述第一连接点、所述转轴、所述第四连接点沿X轴负方向依次布置形成传动链;所述第一锁止位、所述第二锁止位、所述第三锁止位沿X轴正方向依次布置形成锁定链。本实施例中提到的X轴负方向依次布置是指第一安装位、第一连接点、转轴、第四连接点的X轴坐标的排列顺序,而不是限制传动链在一条直线上,即第一安装位、第一连接点、转轴、第四连接点可以具有相同的Y轴坐标,也可以具有不同的Y轴坐标。同样的,X轴正方向依次布置是指第一锁止位、第二锁止位、第三锁止位的X轴坐标的排列顺序,而不是限制锁定链在一条直线上。
根据本申请实施例的一个方面,在Y轴方向上所述锁定链位于所述传动链的下方。
根据本申请实施例的一个方面,所述转动件位于第一极限位时,在X轴方向上,所述第二锁止位和所述第三锁止位位于所述第一安装位的两侧。
根据本申请实施例的一个方面,所述操作组件、所述锁定机构和所述 主弹性件位于所述Y轴的右侧,所述第一连接点、所述第二连接点和所述第三连接点位于所述Y轴的右侧,所述第四连接点能够在所述Y轴的两侧往返运动,所述转轴能够在所述X轴的两侧往返运动。
根据本申请实施例的一个方面,所述支撑件包括在第一方向上相对的两个子侧板,所述子侧板具有由所述子侧板的一端向所述子侧板的中心区域凹陷的凹陷部;所述转动件转动连接于所述子侧板且能够部分旋转伸入所述凹陷部,所述转动件包括在所述第一方向上相对的两个转板、以及位于两个所述转板之间的挂接部,两个所述转板围设形成容纳空间,两个所述子侧板夹设于两个所述转板之间,所述转板具有用于连接所述子侧板的转轴连接端以及与所述转轴连接端相对的转动端,所述挂接部设置于所述转动端,所述挂接部用于挂接所述主弹性件;所述转动端安装有手柄,所述手柄紧邻所述挂接部设置。
根据本申请实施例的一个方面,所述锁扣和所述牵引件分别位于所述凹陷部的两侧,并可旋转的安装在所述支撑件上。
根据本申请实施例的一个方面,所述过渡件在所述Y轴方向上位于所述凹陷部的下方。
根据本申请实施例的一个方面,所述支撑件包括安装于所述子侧板的固定销,所述固定销套设有滚动轮,所述转轴连接端具有卡接于所述滚动轮外圆周的弧形卡接面,所述挂接部包括本体,所述本体具有在所述第一方向上延伸、且开口背离所述容纳空间的轴销放置槽,所述轴销放置槽的底面贯穿设置有用于穿设所述主弹性件的通过孔。
根据本申请实施例的一个方面,所述转动件包括卡接部,所述卡接部和所述挂接部在所述转板旋转进入所述凹陷部的方向上依次设置于所述转动端,所述卡接部具有朝向所述容纳空间且呈角度连接的第一卡接面和第二卡接面,以及与所述第一卡接面背离设置的限位面,所述手柄抵接于所述限位面。
根据本申请实施例的一个方面,所述卡接部具有与所述第二卡接面背离设置、且连接于所述限位面的避让面,所述挂接部具有背离所述容纳空间的外表面,所述避让面位于所述限位面与所述外表面之间,所述避让面 与所述限位面所成夹角为θ 1,所述避让面与所述外表面所成夹角为θ 2,其中,90°<θ 1<θ 2
根据本申请实施例的一个方面,所述转板的形状为扇形,所述转动端包括弧形边。
根据本申请实施例的一个方面,所述挂接部设置于所述弧形边旋转进入所述凹陷部中的端部,所述挂接部具有在所述转动方向上相对的第一端和第二端,所述挂接部的所述第一端与所述卡接部连接,所述卡接部通过所述挂接部连接于所述子侧板。
根据本申请实施例的一个方面,所述挂接部具有在第一方向上相对的第三端和第四端,所述第三端和所述第四端分别设置有沿所述第一方向延伸的插销,所述转动端设置有沿所述第一方向延伸的插柱,所述插柱上开设有插接孔,所述插销与所述插接孔过盈配合。
本申请实施例的用于断路器的操作机构通过设置操作组件、传动机构和锁定机构形成传动链和锁定链,灭弧装置设置于下方,即灭弧装置也沿断路器的长度方向延伸,相对于现有技术中沿断路器高度方向延伸的灭弧装置,本申请的灭弧装置能够占据更大的空间,进而能够分断更高的短路电流。
附图说明
下面将通过参考附图来描述本申请示例性实施例的特征、优点和技术效果。
图1是本申请实施例提供的断路器脱扣状态下的结构示意图;
图2是图1所示断路器扣住状态下的结构示意图;
图3是图1所示断路器合闸状态下的结构示意图;
图4是图1所示的传动机构的结构示意图;
图5是图1所示的传动机构和操作组件的结构示意图;
图6是图1中F处的放大结构示意图;
图7是图6中的跳扣的结构示意图;
图8是图6中锁扣的结构示意图;
图9是图6中牵引件的结构示意图;
图10是图6中过渡件的结构示意图;
图11是图1所示的操作组件的结构示意图;
图12是图11中支撑件的结构示意图;
图13是图11中转动件的结构示意图;
图14是本申请实施例提供的三个断路器的连接示意图。
附图标记:
1、壳体;11、容纳部;12、容纳腔;13、转动轮;131、第一转动部;132、外周部;14、动触头;141、动触头引弧件;15、静触头;151、静触头引弧件;16、脱扣器;161、过电流脱扣器;162、脱扣器促动杆;17、限位轴;18、消游离装置;19、排气孔;10、接线板;101、第一接线板;102、第二接线板;
2、操作组件;21、支撑件;211、子侧板;212、避让孔;213、侧壁;214、固定销;215、滚动轮;22、转动件;221、转板;2211、转轴连接端;2212、弧形卡接面;2213、转动端;222、挂接部;2221、本体;2222、轴销放置槽;2223、通过孔;2224、第一端;2225、第二端;2226、外表面;223、卡接部;2231、避让面;2232、第二卡接面;2233、限位面;23、手柄;
3、灭弧装置;31、灭弧室;
4、传动机构;41、第一连杆;411、第一连接点;412、第二连接点;413、第一特定点;42、第二连杆;421、第三连接点;422、第四连接点;423、第二特定点;43、主弹性件;431、第三特定点;44、转轴;
5、锁定机构;51、跳扣;511、第一侧板;512、连接板;513、第二表面;514、卡止面;515、安装耳;5151、第一安装孔;516、传动臂;5161、第一抵接面;5162、第二抵接面;5163、第二安装孔;517、导向板;518、弧形导向面;
52、锁扣;521、卡止配合部;522、过渡连接部;523、第一传动部;524、第一侧面;525、卡止配合面;526、第一避让孔;527、第二避让孔;528、第一通孔;529、卡置槽;520、凸起;
53、牵引件;531、第二基体;532、第二传动部;533、阶梯结构;534、转动轴容纳部;535、第一台阶面;536、第二台阶面;537、弧形过渡面;
54、联动组件;541、第一伸缩件;542、第二伸缩件;543、过渡件;544、Y型夹板;5441、第一自由端;5442、第二自由端;5443、第三自由端;545、第一轴杆;546、第二轴杆;547、滚轮;548、安装槽;549、第三轴杆;
A、第一方向;B、第二方向;C、第三方向;D、第四方向;E、第五方向。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理,但不能用来限制本申请的范围,即本申请不限于所描述的实施例。
在本申请的描述中,需要说明的是,除非另有说明,“多个”的含义是两个以上;术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”、“第三”等仅用于描述目的,而不能理解为指示或暗示相对重要性。
下述描述中出现的方位词均为图中示出的方向,并不是对本申请的具体结构进行限定。在本申请的描述中,还需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可视具体情况理解上述术语在本申请中的具体含义。
为了更好地理解本申请,下面结合图1至图14对本申请实施例进行描述。
请一并参阅图1至图3,图1是本申请实施例提供的断路器脱扣状态下 的结构示意图,图2是图1所示断路器扣住状态下的结构示意图,图3是图1所示断路器合闸状态下的结构示意图,本申请实施例提供的断路器包括壳体1、操作组件2、灭弧装置3以及传动机构4,壳体1沿第五方向E上具有相对的底部、顶部、由顶部向底部凹陷形成的容纳部11和半包围式围合容纳部11容纳腔12,容纳腔12靠近顶部并沿第二方向B与容纳部11相邻设置有转动轮13,以及与转动轮13连接的动触头14;操作组件2转动且可拆卸式连接在壳体1的顶部,并且能够转动收纳于容纳部11或转动退出容纳部11;灭弧装置3包括有位于容纳腔12内且靠近底部的灭弧室31,传动机构4负责将操作组件2发出的第一信号沿第二方向B传递至转动轮13以带动动触头14运动。
本申请实施例中传动机构4位于靠近壳体1顶部位置,灭弧装置3位于靠近壳体1底部位置且横向布置,两者平行设置且互不干涉,相较于传统断路器,本申请的灭弧室31容积更大,可以容纳更多栅片从而提高动静触头分断可靠性,并且传动机构4沿第二方向B传动避免与其他部件干涉。
壳体1上具有凹陷形成的容纳部11以及包围容纳部11的容纳腔12,容纳腔12可以只包围容纳部11的两个平面,也可以同时包围容纳部11的三个及以上的平面,本申请实施例中以容纳腔12包围容纳部11的三个平面为例进行说明,容纳腔12呈凹形结构,容纳部11位于凹形结构的凹陷区域并由容纳腔12围合形成,容纳部11与容纳腔12通过壳体1实现分隔,即壳体1与容纳部11的三个平面相接触形成半包围式结构。
转动轮13、动触头14以及灭弧装置3均位于容纳腔12内,转动轮13位于壳体1靠近顶部的位置处,动触头14位于转动轮13远离壳体1顶部的位置处,转动轮13转动连接在壳体1上并与动触头14同步运动,动触头14与静触头15配合使用,当动触头14与静触头15结合时,断路器处于连通状态即断路器的合闸状态;当动触头14与静触头15分开时,断路器处于断路状态即断路器的分闸状态。
灭弧装置3中的灭弧室31位于壳体1靠近底部的位置处,动触头14位于转动轮13与灭弧室31之间,在动触头14与静触头15分断的瞬间,由于动触头14与静触头15间存在电容,使得触头间绝缘击穿,产生真空 电弧,电弧的存在既会扩大电路系统整体的故障程度,也会对触头本身造成破坏,因此断路器需要设置有灭弧装置3用于减少电弧对触头的烧损以及限制电弧扩展的空间。在本方案中,灭弧室31的长度方向与第二方向B接近平行,即灭弧室31沿断路器的长边方向延伸,在一般的断路器中,灭弧室31通常沿断路器的高度方向延伸,因此与现有的断路器相比,在断路器整体体积相同的前提下,本申请中的灭弧室31容量更大,并且可以安装有更多片数的栅片,从而提高动静触头高压分断时的可靠性。
本实施例中操作组件2设置在容纳部12并且相对壳体1可拆卸连接,操作组件2用于带动转动轮13在壳体1上转动,传动机构4中的一部分位于容纳部11内用于传动连接操作组件2与转动轮13,操作组件2向传动机构4发出第一信号,传动机构4将第一信号沿第二方向B传递至转动轮13,使得动触头14相对靠近或者远离静触头15。第五方向E与第二方向B相交,对于两个方向之间的夹角大小本申请不进行限定,只要满足两个方向互不重合或平行即可,在一些优选方案中,第五方向E与第二方向B相互垂直,此时第五方向E与断路器整体长度方向平行,第二方向B与断路器的高度方向平行,即传动机构4的传动方向与灭弧室31的长度方向相平行,传动机构4位于靠近壳体1顶部位置,灭弧装置31位于靠近壳体1底部位置处,两者平行设置且互不干涉。
下面请参阅图4和图5,图4是图1所示的传动机构的结构示意图,图5是图1所示的传动机构和操作组件的结构示意图,本申请实施例提供的传动机构4包括第一连杆41、第二连杆42以及主弹性件43,第一连杆41与第二连杆42通过转轴44转动连接,第一信号经由第一连杆41和第二连杆42传递至转动轮13,主弹性件43的一端与转轴44相连接,另一端与操作组件2相连,主弹性件43施加在转轴44上的力使得转轴44存在第五方向E的位移。
第一连杆41的一端相对靠近操作组件2,另一端通过转轴44与第二连杆42转动连接,第二连杆42远离第一连杆41的一端与转动轮13相连接,当然在其他实施方式中,操作组件2与转动轮13也可以分别连接在第一连杆41与第二连杆42的其他位置,本申请对此不进行限定,只要满足传动 机构4的传动方向沿第二方向B即可,在断路器进行合闸或分闸操作时,工作人员通过操作组件2向传动机构4的主弹性件43发出第一信号,第一连杆41带动第二连杆42一起运动,转动轮13发生转动,动触头14相对靠近或者远离静触头15,整体电路实现连通或断开。
主弹性件43的一端与转轴44相连另一端与操作组件2相连,主弹性件43与操作组件2相连接的一端用于接收外力,另一端用于对转轴44施加拉力并带动转轴44运动,转轴44可以固定连接在第一连杆41上,也可以固定连接在第二连杆42上,还可以与第一连杆41和第二连杆42均转动连接,本申请对此不进行限定。在断路器分闸或合闸过程中,第一连杆41与第二连杆42的整体传动方向沿着第二方向B,而转轴44的移动方向为第五方向E,即在主弹性件43拉力的作用下,第一连杆41与第二连杆42连接处的移动方向与传动机构4整体的传动方向相交,在一些优选实施例中,转轴44移动方向与传动机构4整体传动方向接近垂直。通过这种设计可以减小传动机构4在第二方向B上的整体长度,使得断路器结构更加紧凑以便节约横向空间。
可以理解的是,传动机构4包括第一连杆41、第二连杆42及主弹性件43,第一连杆41沿自身长度方向具有第一连接点411和第二连接点412,第一连接点411用于围绕第一特定点413转动;第二连杆42沿自身长度方向具有第三连接点421和第四连接点422,第二连接点412与第三连接点421通过转轴44转动连接,第四连接点422用于围绕第二特定点423转动;主弹性件43一端与转轴44相连接,另一端用于接收外力,其中主弹性件43在外力作用下向转轴44施加力,使得转轴44向与第一连接点411及第二连接点412连线方向相交的方向移动。
第一连接点411、第二连接点412、第三连接点421及第四连接点422可以分别位于第一连杆41和第二连杆42的不同位置处,本申请对此不进行限定,在一些可选方案中,如图4和图5所示,第一连接点411与第二连接点412分别位于第一连杆41的两端,第三连接点421与第四连接点422分别位于第二连杆42的两端,第二连接点412和第三连接点421通过转轴44实现连接。
本申请中传动机构4的运动共分为两种情况,第一种情况为第一连杆41上的第一连接点411保持固定不动,主弹性件43远离第二连杆42的一端受到外力影响发生移动,此时转轴44位置未发生改变,当到达某个特定时刻时,主弹性件43向转轴44释能并带动转轴44相对移动,然后第一连杆41与第二连杆42均开始转动,第一连杆41上的第二连接点412围绕第一连接点411转动,第二连杆42上的第三连接点421与第二连接点412运动轨迹相同,第四连接点422围绕第二特定点423转动。在这个过程中,转轴44围绕第一连接点411转动,并且转轴44的移动方向始终与第一连接点411与第四连接点422的连线方向相交,主弹性件43起到传递外力的作用带动第一连杆41和第二连杆42产生相对位移。
第二种情况为第一连杆41上的第一连接点411能够围绕第一特定点413相对转动,在其他外力因素影响下,第一连接点411围绕第一特定点413转动,第一连杆41上的第二连接点412即转轴44位置随第一连接点411的运动而发生偏转,此时主弹性件43施加在转轴44上的力使得转轴44在第二方向B上相对靠近第一连接点411,第二连杆42上的第三连接点421与第二连接点412运动轨迹相同,第四连接点422围绕第二特定点423转动。与第一种情况相同,转轴44的移动方向始终与第一连接点411与第四连接点422的连线方向相交。
在上述两种情况中,转轴44的移动方向始终与第一连接点411与第四连接点422的连线方向相交,即转轴44的移动方向相交于整个传动机构4的传动方向,在本申请断路器中,传动机构4的整体传动方向与第二方向B接近平行,而转轴44移动方向与传动方向相交甚至可能垂直,换句话说两个连杆的连接点的移动方向与第五方向E接近平行。相较于传统断路器,这种设计可以合理运用断路器内部的空间结构,从而减少传动机构4整体在断路器中占用的横向空间。
在本申请实施例提供的传动机构中,主弹性件43远离转轴44的一端用于围绕第三特定点431转动,其中第三特定点431、第二连接点412与第一连接点411位于同平面且不共线。主弹性件43远离转轴44的一端沿特定轨迹相对滑动,对于主弹性件43相对第三特定点431的可偏转角度根据 断路器内部实际尺寸决定,本申请对此不进行限定。
在本申请实施例提供的传动机构中,主弹性件43具有拉伸状态和复位状态,主弹性件43在复位状态下长度大于第一连杆的长度。本申请中的主弹性件43可以为弹性件,即弹簧或弹性绳等,主弹性件43的复位状态即为自身沿长度方向不受任何外力的状态,拉伸状态即为沿自身长度方向受到外力而伸长的状态,并且伸长量小于其最大弹性形变量,因此主弹性件43的拉伸状态下的长度大于复位状态下的长度,在本申请中主弹性件43始终处于拉伸状态,因此传动机构4运动过程中,主弹性件43的长度始终大于第一连杆41的长度,由于主弹性件43一端与第一连杆41上的第二连接点412重合,因此主弹性件43远离第二连杆42的一端始终与第一连杆41上的第一连接点411分离,即主弹性件43与第一连杆41之间不会发生干涉影响,提高了传动机构4整体的可靠性。
主弹性件43远离第二连杆42的一端用于接收外力,在外力作用下主弹性件43长度逐渐拉长,自身弹性力逐渐增大。当主弹性件43拉伸到特定长度时,主弹性件43向转轴44释能并带动转轴44产生运动,主弹性件43与转轴44及操作组件2之间的安装形式有多种方式,在一些方案中主弹性件43两端设置有挂钩,通过挂钩挂接在转轴44及操作组件2上;在其他方案中还可以通过粘接或焊接等方式实现连接。
在本申请实施例提供的传动机构4中,第一特定点413和第二特定点423分别位于第四连接点422与转轴44连线的两侧。第一特定点413为第一连接点411的转动圆心,第二特定点423为第四连接点422的转动圆心,第一特定点413和第二特定点423的连线与第二连杆42相交,第一特定点413与第二特定点423的具体位置根据断路器体积以及第一连杆41、第二连杆42的长度决定,本申请对此不进行限定。
在本申请实施例提供的传动机构4中,第二特定点423至转轴44的距离始终大于第二特定点431到第四连接点422的距离。由于转轴44安装在第二连杆42的第三连接点421上,因此第二特定点423到转轴44的距离与第二特定点423到第三连接点421的距离相同,即第二特定点423至第三连接点421的距离大于第二特定点423至第四连接点422的距离。在本 方案中以第二特定点423为圆心,以第二特定点423到第四连接点422的距离为半径做圆,转轴44位置始终位于圆外,相当于第二连接点412始终位于上述圆周外,即第一连杆41与上述圆周始终不会发生干涉。
在本申请实施例提供的断路器中,壳体1内设置有转动轮13和与转动轮13连接的动触头14,转动轮13包括第一转动部131以及环绕第一转动部131的外周部132,第一转动部131转动设置在壳体1上,第二连杆42通过第四连接点422与外周部132相连接,第一特定点423与第一转动部131位置重合。如图2所示,第二连杆42用于直接带动转动轮13绕第一转动部131转动,第一转动部131可以位于转动轮13的中心位置,也可以偏心设置。由于第二特定点423至转轴44的距离始终大于第二特定点423到第四连接点422的距离,并且第四连接点422位于转动轮13的外周部,因此第一连杆41与转动轮13之间不会发生干涉影响。
在本申请实施例提供的断路器中,操作组件2发出第一信号并通过传动机构4传递至转动轮13以带动动触头14运动。工作人员通过操控操作组件2从而实现分合闸操作,操作组件2与转动轮13之间通过传动机构4实现指令传递。通常情况下操作组件2转动安装在支撑件21上,支撑件21固定安装在断路器壳体1上,主弹性件43远离转轴44的一端与操作组件2相连接并随操作组件2同步运动。操作组件2运动过程中,主弹性件43在操作组件2的带动下逐渐伸长,自身弹性力逐渐增大,主弹性件43向转轴44释能并带动转轴44产生运动。
在本申请实施例提供的断路器中,第一连杆41通过第一连接点411与锁定机构5相连接,锁定机构5发出第二信号给传动机构4,传动机构4驱动转动轮13以带动动触头14运动。锁定机构5包括相互锁定的跳扣51和锁扣52,第一连杆41通过第一连接点411与跳扣51相连接,跳扣51通过第一安装孔5151转动连接在支撑件21上,第一特定点413与第一安装孔5151重合。断路器合闸状态时,锁定机构5处于扣住状态,第一连接点411保持固定不动;当电路出现故障时,锁定机构5在外力作用下解除扣住状态,跳扣51逆时针转动,第一安装孔5151的下方推动转轴44,使其产生向下的位移,第二连杆42上的第四连接点422围绕转动轮13的第一 转动部131开始转动。
在一些其他实施例中,锁定机构5与操作组件2同步收纳于容纳部11内,锁定机构5发出第二信号并通过传动机构4沿第二方向B传递至转动轮13以带动动触头14运动。
当断路器合闸时,锁定机构5处于扣住状态,动触头14和静触头15相互闭合接触,整个断路器内部呈相对稳定结构;而当电路整体发生故障时,断路器内部稳定被破坏,锁定机构5由扣住状态变为脱扣状态,锁定机构5发出第二信号给传动机构4,传动机构4驱动转动轮13以带动动触头14运动,动触头14远离静触头15,动触头14和静触头150分离,断路器由合闸状态变为分闸状态。
下面请一并参阅图6至图10,图6是图1中F处的放大结构示意图,图7是图6中的跳扣的结构示意图,图8是图6中锁扣的结构示意图,图9是图6中牵引件的结构示意图,图10是图6中过渡件的结构示意图,本申请实施例提供的锁定机构5包括可以相互锁定的跳扣51和锁扣52,第二信号经由跳扣51和锁扣52传递至传动机构4,其中跳扣51和锁扣52的抵接点位于灭弧室31与传动机构4之间。
跳扣51和锁扣52相互锁定形成稳定结构,并通过抵接点完成力的传递以及相对位置的锁定,在由再扣变为脱扣状态或者由脱扣变为扣住状态过程中,跳扣51和锁扣52之间的抵接点位置一直在发生变化,但始终处于灭弧室31与传动机构4之间,即锁定机构5的传动过程发生在传动机构4与灭弧装置3之间。在图1所示结构中,锁定机构5形成的锁定链位于传动机构4形成的传动链下方,灭弧装置3的上方。在第五方向E上,传动机构4、锁定机构5以及灭弧装置3共同形成自上而下的纵向布置结构,并且三者之间错位排布且不会发生相互干涉;在第二方向B上,传动机构4的延伸方向与锁定机构5的延伸方向均为横向,并且两者的传动方向均与第二方向B相平行。
传统断路器的内部部件通常为横向布置,灭弧装置位于断路器的一侧,传动机构紧挨灭弧装置设置,锁定机构位于传动机构远离灭弧装置的一侧,锁定机构与传动机构的传动方向为竖向,这样的结构设计导致断路器整体 空间利用率较低,并且传动结构和锁定机构的部分零件会重叠布置,容易发生相互干涉从而影响断路器的正常使用。因此相对于传统断路器的布置形式,本申请中采用传动链和锁定链分层布置的方式,可以充分利用断路器内部的空间结构,整体结构更加紧凑,并且传动机构与锁定机构的零件之间相互不会发生干涉影响,提高整体可靠性。
在一些其他实施例中,锁定机构5包括过渡件543以及牵引件53,锁扣52与过渡件543能够相互锁定,过渡件543与牵引件53能够相互锁定,容纳腔12内位于容纳部11远离转动轮13的一侧设置有脱扣器16,脱扣器16向牵引件53发送第二信号。
断路器合闸时,跳扣51与锁扣52锁定,锁扣52与过渡件543锁定,过渡件543与牵引件53相锁定,其中牵引件543的一端与脱扣器16相连。脱扣器16包括过电流脱扣器161以及脱扣器促动杆162,牵引件53与脱扣器促动杆162相抵接,当电路出现故障时,过电流脱扣器161感应到电路异常,控制脱扣器促动杆162产生位移,牵引件53随脱扣器促动杆162一起移动并与过渡件543解除锁定,随后锁扣52以及跳扣51也先后解除锁定并向传动机构4发送第二信号,传动机构4将信号传递至转动轮13上使得动触头14与静触头15相分离。.
在一些可选实施例中,锁定机构5包括跳扣51、锁扣52、牵引件53及联动组件54。跳扣51包括第三方向C上相对的两个第一侧板511,以及连接两个第一侧板511同一端的连接板512,连接板512具有在自身厚度方向上相背的第一表面、第二表面513,以及连接于第一表面和第二表面513的卡止面514,第一侧板511包括安装耳515,安装耳515位于第一侧板511远离连接板512的一端。锁扣52位于连接板512远离安装耳515的一侧,锁扣52包括卡止配合部521,以及与卡止配合部521经由过渡连接部522在第四方向D上错位连接的第一传动部523,卡止配合部521包括在第四方向D上相背的第一侧面524、第二侧面,以及连接于第一侧面524和第二侧面的卡止配合面525,过渡连接部522开设有在厚度方向上贯穿自身的第一避让孔526,卡止配合面525至少部分穿过第一避让孔526。牵引件53包括基体531,以及位于基体531相对两侧的第二传动部532和阶梯 结构533,基体531设置有转动轴容纳部534,转动轴容纳部534在安装轴后与支撑件21转动连接。阶梯结构533包括相连接的第一台阶面535和第二台阶面536,第二台阶面536连接于第一台阶面535远离基体531的一侧。联动组件54用于连接锁扣52和牵引件53,其中锁定机构5具有扣住状态和脱扣状态,扣住状态5由脱扣状态转变为扣住状态时,跳扣51由初始位置顺时针旋转,锁扣52逆时针旋转进而卡止配合面525与卡止面514相抵接,锁扣52通过联动组件54使得第二传动部532顺时针旋转至第一位置;锁定机构5由扣住状态转变为脱扣状态时,第二传动部532由第一位置逆时针旋转,并通过联动组件54使得跳扣51顺时针旋转进而卡止匹配面525远离卡止面514,跳扣51逆时针旋转至初始位置。
跳扣51用于与传动机构4相连,由两个相对布置的第一侧板511并通过连接板512形成大致U型的结构,锁定机构5通过跳扣51向传动机构4输送第二信号,以带动触头和静触头实现分离,第一安装孔5151设置在跳扣5的安装耳515上,跳扣51通过第一安装孔5151与支撑件21之间转动连接。
锁扣52用于与跳扣51形成锁定结构,并通过第一传动部523与支撑件21转动连接,第一传动部523沿第四方向D上的一端设置有传动轴,第一传动部523通过传动轴转动安装在支撑件21上,传动轴可以只设置有一个也可以设置有两个,即锁扣52可以仅与一侧支撑件21转动连接,也可以与两侧支撑件21均转动连接,本申请对此不进行限定。
牵引件53用于传递脱扣器16发出的第二信号,并通过转动轴容纳部534与支撑件21转动连接,第二传动部532与脱扣器16相邻设置,用于接收脱扣器16发出的信号,阶梯结构533位于牵引件53上远离第二传动部532的一侧,用于与联动组件54形成锁定机构。
通常情况下锁定机构5与操作组件2和脱扣器16配合使用,操作组件2能够向锁定机构5发出第三信号并带动跳扣51转动,锁定机构5由脱扣状态变为扣住状态;当电路出现问题时,脱扣器16发出第二信号并通过牵引件53向锁定机构5传递动力,锁定机构5由扣住状态变为脱扣状态。
在第三信号的作用下锁定机构5由脱扣状态变为扣住状态,具体工作 流程为,操作组件2带动跳扣51围绕安装耳515上的第一安装孔5151顺时针转动,跳扣51转动并下压锁扣52,锁扣52在跳扣51压力以及联动组件54中第一伸缩件541的拉动下,开始逆时针转动进而使得卡止配合面525与所述卡止面514相抵接,跳扣51与锁扣52实现第一重锁定。联动组件54中的过渡件543顺时针转动,并与锁扣52形成第二重锁定,第二传动部532在联动组件54的作用下顺时针旋转至第一位置,并与过渡件543形成第三重锁定。此时跳扣51、锁扣52、牵引件53以及联动组件54相互之间形成三重锁定结构,锁定机构5整体处于扣住状态。扣住状态下由于扣住状态内部处于完全锁死状态,即使操作组件2继续向锁定机构5发出第三信号也无法带动锁定机构5运动,即操作组件2只能控制锁定机构5由脱扣状态变为扣住状态,无法控制锁定机构5由扣住状态变为脱扣状态。
在一些可选实施例中,联动组件54包括第一伸缩件541、第二伸缩件542和过渡件543。过渡件543位于第二侧面远离第一侧面524的一侧,过渡件543的形状为Y型,过渡件543包括间隔设置的第一卡止端、第二卡止端和连接端,第一卡止端抵接与第二侧面,第二卡止端抵接于阶梯结构533。第一伸缩件541的其中一端连接于锁扣52的第一传动部523,另一端连接于过渡件543的连接端,过渡件543在第一伸缩件541的作用下顺时针旋转,第一卡止端由第二位置旋转至第三位置。第二伸缩件542的其中一端连接于牵引件53的基体531,第一卡止端由第二位置旋转至第三位置时,牵引件53在第二伸缩件542的作用下顺时针旋转以使得第二卡止端由第一台阶面535移动并卡止于第二台阶面536。过渡件543用于与锁扣52及牵引件53相连,并且通过第一卡止端与锁扣52形成一锁定结构,通过第二卡止端与牵引件53形成另一锁定结构;第一伸缩件541用于带动过渡件543的转动,第二伸缩件542用于带动牵引件53的转动。
在一些可选实施例中,过渡件543呈Y型结构,第一卡止端、第二卡止端和连接端分别位于过渡件543的三个端部位置,第一卡止端与第二侧面相抵接,当锁定机构5处于扣住状态时,第一卡止端处于第三位置且与卡止配合面525之间的距离最远;当锁定机构5处于脱扣状态时,第一卡止端处于第二位置且与卡止配合面525之间的距离最近。第二卡止端与牵 引件53相抵接,当锁定机构5处于扣住状态时,第二卡止端与第二台阶面536相抵接;当锁定机构5处于脱扣状态时,第二卡止端与第一台阶面535相抵接。
第一伸缩件541一端与锁扣52的第一传动部523相连,另一端与过渡件543的连接端相连,第一伸缩件541用于驱动锁扣52及过渡件543。当脱扣器16带动牵引件53逆时针转动时,牵引件53与过渡件543不再保持锁定,过渡件543逆时针转动,第二卡止端从第二台阶面536移动到第一台阶面535,第一卡止端与第二侧面的抵接点随第一卡止端一起向下移动,第一伸缩件541的拉伸量增加,锁扣52在第一伸缩件541弹性力的带动下沿逆时针方向转动,从而解除跳扣51与锁扣52的扣住状态。
第二伸缩件542的一端连接于牵引件53的基体531,另一端连接在支撑件21上,具体位置根据断路器内部结构决定,第二伸缩件542始终处于拉伸状态负责向牵引件53提供拉力,保证锁定机构5扣住状态时,牵引件53不会产生晃动与过渡件543分离。
在一些可选实施例中,第一侧板511包括传动臂516,传动臂516位于安装耳515和第一侧板511连接上述连接板512的端部之间,传动臂516与卡止面514共同位于安装耳515的同侧,传动臂516包括呈角度连接的第一抵接面5161和第二抵接面5162,第一抵接面5161与第二抵接面5162形成用于卡接的卡止位。
第一连杆41的第一连接点411与传动臂516转动连接,跳扣51通过传动臂516带动第一连杆41进行运动,卡止面514用于与第二锁定机构5的卡止配合面525相抵接从而形成锁定结构。在第二方向B上,传动臂516与卡止面514均位于安装耳515的一侧,在本申请图1所示结构中,传动臂516与卡止面514均位于安装耳515的右侧,安装耳515的右侧设置有限位轴17,限位轴17固定设置于支撑件21上,限位轴17用于脱扣发生时限位第一连杆41,提高分闸速度。
在一些可选实施例中,跳扣51包括导向板517,导向板517连接于连接板512中与卡止面514相对的连接面,且由连接面向远离卡止面514的方向延伸,导向板517具有远离安装耳515一侧的弧形导向面518,跳扣 51逆时针旋转时,导向板517通过弧形导向面518抵接于第一侧面524;第一侧面524设置有凸起520,跳扣51逆时针旋转时,弧形导向面518抵接于凸起520。
在跳扣51顺时针或逆时针转动过程中,导向板517与锁扣52相接触起到导向作用,弧形导向面518的设计可以使得跳扣51与锁扣52之间的相对滑动更加平稳流畅。
在一些可选实施例中,第一侧面524开设有通孔528,第一卡止端位于第二位置时卡止于通孔528。通孔528的尺寸大小由第一卡止端的尺寸大小决定,当锁定机构5处于脱扣状态时,第一卡止端处于第二位置并卡止于通孔528内。锁定机构5从脱扣状态转变至扣住状态过程中,第一卡止端首先从通孔528中脱离并朝相对远离卡止配合面525的方向移动并最终与锁扣52抵靠锁定,第一伸缩件541在此过程中始终保持伸长状态。
在一些可选实施例中,第一传动部523具有沿第四方向D贯穿自身的第二避让孔527,第二避让孔527与第一避让孔526相连通。锁定机构5从脱扣状态转变至扣住状态过程中,卡止面514与卡止配合面525逐渐靠近并最终紧密贴合,跳扣51的卡止面514在移动过程中,由于惯性作用影响会进入至第一避让孔526和第二避让孔527中,从而避免卡止面514直接与锁扣52产生刚性接触,从而提高跳扣51的使用寿命。
在一些可选实施例中,过渡件543包括两个相对设置的Y型夹板544,Y型夹板544包括第一自由端5441、第二自由端5442和第三自由端5443,两个第一自由端5441穿设有第一轴杆545,两个第二自由端5442穿设有第二轴杆546,第一轴杆545位于两个Y型夹板544之间的部分套设有滚轮547,滚轮547在第二位置和第三位置之间滚动,第二轴杆546位于两个Y型夹板544之间的部分在第一台阶面535和第二台阶面536之间运动,第一伸缩件541挂设于第三自由端5443。在本方案中,过渡件543通过滚轮547与锁扣52相抵接,滚轮547相对第一轴杆545可自由转动,因此锁扣52与过渡件543之间的点接触可通过滚轮547转动实现调节,避免两者快速接触产生损坏。
在一些可选实施例中,第三自由端5443设置有用于挂接第一伸缩件 541的安装槽548,第一伸缩件541与锁扣52及过渡件543之间可以通过很多方式实现连接,在本申请中,第一伸缩件541两端设有挂钩,锁扣52的第一传动部523以及过渡件543的连接端均设有相应的安装槽548,第一伸缩件541的两端分别挂接在锁扣52与过渡件543上。
在一些可选实施例中,阶梯结构533包括位于第一台阶面535和第二台阶面536的弧形过渡面537。扣住状态时,过渡件543与第二台阶面536抵接;脱扣状态时,过渡件543与第一台阶面535抵接。锁定机构5在扣住状态和脱扣状态转变过程中,过渡件543从第一台阶面535出发经由弧形过渡面537到达第二台阶面536,或者从第二台阶面536出发经由弧形过渡面537到达第一台阶面535,弧形过渡面537在此过程中起到光滑过渡的作用,保证过渡件543与牵引件53之间的移动相对平稳。
在一些其他实施例中,锁定机构5围设形成一内凹空间,操作组件2在内凹空间的凹陷部内滑动并向传动机构44发出第一信号。过渡件543位于内凹空间内部并且处于凹陷部的下方,跳扣51与锁扣52位于过渡件543的一侧,牵引件53位于过渡件543的另一侧,操作组件2能够在凹陷部内相对滑动并向传动机构4发出第一信号使动触头14运动,或者向锁定机构5发出第三信号使得锁定结构由脱扣状态转变为扣住状态。当然在本实施例中,锁定机构5中的各锁定件的排布方式也可以采用本申请以外的其他方式,只要满足锁定机构5围设形成可以供操作组件2相对运动的内凹空间即可,本申请对此不进行限定。
请一并参阅图1至图13,图11是图1所示的操作组件的结构示意图,图12是图11中支撑件的结构示意图,图13是图11中转动件的结构示意图。本申请实施例的操作机构包括操作组件2、传动机构4和锁定机构5,操作组件2包括支撑件21和转动安装于支撑件21的转动件22,转动件22具有在转动方向上的第一极限位和第二极限位。锁定机构5包括跳扣51、锁扣52、与脱扣器16耦合连接的牵引件53、以及连接锁扣52和牵引件53的过渡件543,锁定机构5具有脱扣状态和扣住状态,锁定机构5处于扣住状态时,跳扣51和锁扣52形成第一锁止位,过渡件543与锁扣52形成第二锁止位,过渡件543与牵引件53形成第三锁止位。传动机构4包括第一 连杆41、第二连杆42、连接第一连杆41和第二连杆42的转轴44以及主弹性件43,第一连杆41的其中一端具有与跳扣51枢接的第一连接点411,第一连杆41的另一端具有与第二连杆42连接的第二连接点412,第二连杆42的其中一端具有与第一连杆41连接的第三连接点421,第二连杆42的另一端具有与转动轮13连接的第四连接点422,转轴44设置于第二连接点412和第三连接点421之间。主弹性件43的其中一端具有与转动件22连接的第一安装位,另一端具有与转轴44连接的第二安装位。以转动轮13的中心为原点建立平面直角坐标系,以断路器的长度方向为X轴方向,第一安装位、第一连接点411、转轴44、第四连接点412沿X轴负方向依次布置形成传动链;第一锁止位、第二锁止位、第三锁止位沿X轴正方向依次布置形成锁定链。本实施例中提到的X轴负方向依次布置是指第一安装位、第一连接点411、转轴44、第四连接点422的X轴坐标的排列顺序,而不是限制传动链在一条直线上,即第一安装位、第一连接点411、转轴44、第四连接点422可以具有相同的Y轴坐标,也可以具有不同的Y轴坐标。同样的,X轴正方向依次布置是指第一锁止位、第二锁止位、第三锁止位的X轴坐标的排列顺序,而不是限制锁定链在一条直线上。
本申请实施例的用于断路器的操作机构通过设置操作组件2、传动机构4和锁定机构5形成传动链和锁定链,灭弧装置设置于Y轴方向的下方,即灭弧装置3也沿断路器的长度方向延伸,相对于现有技术中沿断路器高度方向延伸的灭弧装置,本申请的灭弧装置3能够占据更大的空间,进而能够分断更高的短路电流。
在一些可选实施例中,在Y轴方向上锁定链位于传动链的下方。如此设置,更为节省空间。
在一些可选实施例中,转动件22位于第一极限位时,在X轴方向上,第二锁止位和第三锁止位位于第一安装位的两侧。其中,第一极限位是转动件22顺时针转动的极限位置,第二极限位是转动件22逆时针转动的极限位置。
在一些可选实施例中,操作组件2、锁定机构2和主弹性件43位于Y轴的右侧,第一连接点、第二连接点和第三连接点位于Y轴的右侧,第四连接点能够在Y轴的两侧往返运动,转轴44能够在X轴的两侧往返运动。
在一些可选实施例中,操作组件2包括支撑件21、转动件22和手柄23。支撑件21包括在第一方向A上相对的两个子侧板211,子侧板211具有沿第一方向A贯穿自身且由子侧板211的一端向子侧板211的中心区域凹陷形成的凹陷部212。转动件22转动连接于子侧板211且能够部分旋转伸入凹陷部212中,转动件22包括在第一方向A上相对的两个转板221、以及位于两个转板221之间的挂接部222和卡接部223,两个转板221围设形成容纳空间,两个子侧板211夹设于两个转板221之间,转板221具有用于连接子侧板211的转轴连接端2211以及与转轴连接端2211相对的转动端2213,卡接部223与挂接部222在转板221旋转进入凹陷部212的方向上依次设置于转动端2213,卡接部223具有朝向容纳空间且呈角度连接的第一卡接面和第二卡接面2232,第一卡接面和第二卡接面2232用于卡接跳扣51。挂接部222用于挂接断路器的主弹性件43。手柄23安装于转动端2213,且位于卡接部223远离挂接部222的一侧。
在一些可选实施例中,转动端2213开设有沿第一方向A贯穿自身的贯穿孔,手柄23通过贯穿孔与转板221固定连接。可选的,二者采用螺纹连接的方式连接,当然,也可以采用铆接、粘接等方式连接。
在一些可选实施例中,锁扣52和牵引件53分别位于凹陷部212的两侧,并可旋转的安装在支撑件21上。
在一些可选实施例中,过渡件53在Y轴方向上位于凹陷部212的下方。将锁扣52和牵引件53设置于凹陷部212的两侧,以及将过渡件53设置于凹陷部212的下侧,进而能够充分利用空间,减小断路器体积。
在一些可选实施例中,支撑件21包括安装于子侧板211的固定销214,固定销214外套设有滚动轮215,转轴连接端2211具有卡接于滚动轮215外圆周的弧形卡接面2212。固定销214上设置滚动轮215,使得转板221在转动时更加灵活。可选的,两个子侧板211分别设置有一个固定销214。当然,也可以两个子侧板211共同设置一个固定销214。
在一些可选实施例中,挂接部222包括本体2221,本体2221具有在第一方向A上延伸、且开口背离容纳空间的轴销放置槽2222,轴销放置槽2222的底面贯穿设置有用于穿设主弹性件43的通过孔2223。设置轴销放置槽2222以及通过孔2223,方便挂接主弹性件43。
在一些可选实施例中,卡接部223具有与第一卡接面背离设置的限位面2233,手柄23抵接于限位面2233。通过在第一卡接面背向设置限位面2233,方便手柄23在安装时提供支撑和限位,以使安装过程省时省力。
在一些可选实施例中,卡接部223具有与第二卡接面2232背离设置、且连接于限位面2233的避让面2231,挂接部222具有背离容纳空间的外表面2226,避让面2231位于限位面2233与外表面2226之间,避让面2231与限位面2233所成夹角为θ 1,避让面2231与外表面2226所成夹角为θ 2,其中,90°<θ 1<θ 2。设置避让面2231,以及将避让面2231与限位面2233、避让面2231与外表面2226的夹角设置成上述大小关系,以便卡接部223与挂接部222所成角度能够满足转动件22旋转进入凹陷部212中的条件。
在一些可选实施例中,转板221的形状为扇形,转动端2213包括弧形边。相对应的,凹陷部212的形状为相适配的弧形。通过将转板221的形状设置成扇形,不仅便于制造,而且造型美观,在旋转进入凹陷部212的过程中更为顺畅。
在一些可选实施例中,挂接部222设置于弧形边旋转进入凹陷部212中的端部,挂接部222具有在转动方向上相对的第一端2224和第二端2225,子侧板211具有围绕凹陷部212的侧壁213,当转动件22旋转进凹陷部212中时,挂接部222的第二端2225能够抵接于侧壁213。其中,转动端2213的弧形边在旋转进入凹陷部212的过程中仅一端进入,将挂接部222设置在该端部,在第二端2225抵接至侧壁213上时,主弹性件43能够得到最大拉伸,为后续过程提供足够的弹性力。
在一些可选实施例中,挂接部222的第一端2224与卡接部223连接,卡接部223通过挂接部222固定连接于子侧板211。卡接部223通过挂接部222连接于子侧板211,此种连接方式便于加工制作,制造成本低。可选的,卡接部223与挂接部222一体成型,挂接部222与转板221一体成型。
在另一些可选实施例中,卡接部223固定连接于转板221,挂接部222固定连接于转板221。
在一些可选实施例中,挂接部222具有在第一方向A上相对的第三端和第四端,第三端和第四端分别设置有沿第一方向A延伸的插销,转动端2213设置有沿第一方向A延伸的插柱,插柱上开设有插接孔,插销与插接孔过盈配合。通过将挂接部222与转板221设置成插销与插接孔配合插接 的方式,方便拆卸挂接部222和卡接部223,以便根据断路器不同的型号进行适配。
在一些可选实施例中,插柱包括多个第一子插柱和多个第二子插柱,多个第一子插柱沿弧形边的延伸方向间隔设置,多个第二子插柱沿弧形边向转轴连接端2211的方向间隔设置。设置第一子插柱和第二子插柱,方便调整挂接部222和卡接部223相对于转板221的具体位置,以便根据断路器的不同型号或不同需求进行调节。例如,当主弹性件43在长时间使用后出现屈服不易回弹导致断路器无法正常使用时,可沿转轴连接端2211至弧形边的方向稍向外调整挂接部222的位置,进而拉伸主弹性件43,使其满足弹性力需求。
请参阅图14,图14是本申请实施例提供的三个断路器的连接示意图。将操作组件2安装于壳体1上时,首先将连接轴杆穿过第二连杆42的第四连接点422和转动轮13的外周部132,以使转动轮13和第二连杆42相铰接。本申请的断路器可多个串接使用。当多个断路器进行串接时,可将操作组件2安装于其中任意一个,而连接轴杆能够延伸至任意一个断路器处并带动其他断路器的转动轮13转动,如此可实现通过一个连接轴杆实现多个断路器的控制。其中,其他断路器可设置成其他保护功能的断路器,例如过载保护或负压保护。
在断路器安装过程中,操作组件2首先通过主弹性件43与传动机构4相连接,此时第二连杆42上的第四连接点422未与转动轮13相连接,因此第二连杆42可自由活动。安装时主弹性件43一端连接在操作组件2上,另一端连接在转轴43上,由于第二连杆42处于可活动状态,因此主弹性件43无需拉伸即可与操作组件2相连接,然后通过第二连杆42与转动轮13的连接,可以实现操作组件2转动安装在容纳部11上,最后通过螺栓等方式即可将操作组件2固定在容纳部11上。相对于传统安装过程,本申请实施例中的主弹性件43无需过长拉伸,并且整个安装过程简单快捷,可实现单人操作。
在一些其他实施方式中,容纳腔12内设置有静触头15,静触头15位于动触头14的一侧,转动轮13用于带动动触头14运动以使动触头14靠近或远离静触头15。
在一些其他实施方式中,灭弧装置3还包括静触头引弧件151及动触头引弧件141,静触头引弧件151位于静触头15远离动触头14的一侧,动触头引弧件141设置在动触头14远离静触头引弧件151的一侧,动触头引弧件141与静触头引弧件151底座围合形成灭弧室31。
动触头引弧件141和静触头引弧件151分别位于动触头14的两侧,静触头15安装在静触头引弧件151上,断路器处于分闸状态时,动触头14抵靠在动触头引弧件141上;合闸状态时,动触头14与动触头引弧件141分开,并与位于静触头引弧件151上的静触头15相连接。在动触头引弧件141以及静触头引弧件151靠近壳体1底部的位置处安装有消游离装置18,动触头引弧件141、静触头引弧件151以及消游离装置18围合形成灭弧室31,灭弧室31内可以安装有灭弧栅片,其中灭弧栅片未在图中示出,消游离装置18远离灭弧室31的一侧设置有排气孔19,对于灭弧栅片、动触头引弧件141、静触头引弧件151及消游离装置18等的具体布置也可以采用与图示结构不同的方式,本申请对此不进行限定。
本申请实施例中断路器沿第二方向B位于壳体1两端位置处还设置有接线板10,接线板10用于与外部电路相连接,接线板10包括第一接线板101和第二接线板102,第一接线板101与动触头14电连接,电连接的形式可以为软连接或者借助其他器件进行连接,第二接线板102不仅与静触头引弧件151电连接并且与脱扣器16电连接,脱扣器16通过第二接线板102可以感应到外部电路是否处于正常工作,当电路发生故障时,脱扣器16使锁定机构5运动并使动触头14和静触头15分离,从而保证电路安全。
本申请中的断路器根据使用状态可以分为三个阶段,分别为脱扣状态、扣住状态以及合闸状态,其中在脱扣状态与扣住状态中动触头14和静触头15均未接触。在断路器正常使用过程,断路器在合闸状态和扣住状态之间转换。在脱扣状态时,动触头14和静触头15并未接触并且锁定机构5也处于未扣住状态;工作人员通过控制操作组件2向锁定机构5发出第三信号,锁定机构5变为扣住状态,断路器整体由脱扣状态转变为扣住状态,在这个过程中动触头14一直与动触头引弧件141相抵接;之后通过控制操作组件2向传动机构4发出第一信号,可以使动触头14运动靠近并接触静 触头15,此时锁定机构5仍保持扣住状态,断路器整体由扣住状态变为合闸状态,整个电路连通。当脱扣器16检测到电路故障时,脱扣器16工作并带动锁定机构5运动,锁定机构5解除扣住状态并向传动机构4发送第二信号,从而使得转动轮13带动动触头14远离静触头15,断路器由合闸状态重新转变为脱扣状态,整个电路断开。
本申请中断路器的正常打开流程为脱扣状态-扣住状态-合闸状态,当人工需要将断路器断开时,人工控制操作组件2向传动机构4发出第一信号,从而使动触头14和静触头15分离,整个电路断开,但在这个过程中锁定机构5仍处于扣住状态,未发生改变,即断路器状态由合闸状态转变为扣住状态。
图1、图2及图3分别表示断路器的脱扣状态、扣住状态及合闸状态,在上述附图中以转动轮13的第一转动部131为圆心建立直角坐标系,X轴为断路器的横向方向,Y轴为断路器的纵向方向,X轴和Y轴分隔为共计四个象限空间,本申请以图1-图3所示结构,分别对断路器的脱扣、再扣以及合闸状态进行详细描述。
图1为断路器脱扣状态的结构示意图,此时锁定机构5处于未扣住状态,跳扣51的弧形导向面518抵接于第一侧面524的凸起上,跳扣51位于初始位置。过渡件的第一卡止端位于通孔528中,第二卡止端抵接于第一台阶面535。第一伸缩件541处于拉伸状态,具有弹性势能。第二伸缩件542处于拉伸状态,具有弹性势能。
传动臂516与跳扣51的第一连接点411位于第一象限,连接第一连杆41与第二连杆42的转轴44位于第四象限,第二连杆42与转动轮13的第四连接点422位于第一象限,此时动触头14抵靠在动触头引弧件141上二者并且位于第三象限,静触头15位于第四象限且与动触头14分离。
图2为断路器扣住状态的结构示意图,此时锁定机构5处于扣住状态,断路器在从脱扣状态变为扣住状态的过程中,操作组件2顺时针转动带动锁定机构5中跳扣51顺时针转动,由于跳扣51不再与锁扣52的凸起相抵接,第一伸缩件541释能,锁扣52在第一伸缩件541的弹力作用下逆时针旋转,进而卡止配合面525与卡止面514相抵接,此时主弹性件43处于拉 伸状态,主弹性件43通过第一连杆41对跳扣51施加拉力,以使跳扣51具有逆时针旋转的运动趋势。同时过渡件在第一伸缩件541的弹力作用下顺时针旋转,其第一卡止端由第二位置移动至第三位置,此时第二伸缩件542释能,带动牵引件顺时针旋转且第二传动部532旋转至第一位置,以使第二卡止端由第一台阶面535移动并卡止于第二台阶面536。
锁定机构5运动过程中,第一连杆41会随跳扣51一起运动,第一连接点411顺时针转动但仍位于第一象限内,相较于脱扣状态,第一连接点411与X轴之间的距离更近,并且在第一连杆41的带动下转轴44向下移动,扣住状态时转轴44处于最低位置。在整个运动过程中,第四连接点422仍位于第一象限内并且未产生位移,即转动轮13未发生转动,动触头14仍抵靠在动触头引弧件141上且与静触头15分离,断路器内部始终保持断路状态。
图3为断路器合闸状态的结构示意图,此时锁定机构5处于扣住状态,断路器在从扣住状态变为合闸状态的过程中,操作组件2逆时针转动主弹性件43一起运动,主弹性件的拉伸量逐渐增大,拉动转轴44向上移动,之后主弹性件43伸长量逐渐变小,转轴44从第四象限移动至第一象限,第二连杆42随转轴44一起移动,第四连接点422逆时针转动从第一象限移动至第二象限,即转动轮13开始逆时针转动并且带动动触头14移动,动触头14逐渐靠近并最终接触到位于第四象限上的静触头15。在这个过程中由于锁定机构5一直保持扣住状态,因此用于与跳扣51相连的第一连接点411一直处于第一象限且保持固定不动,第一连杆41绕第一连接点411顺时针转动。
当人工需要断开断路器时,人工带动操作组件2顺时针转动,主弹性件43伸长量逐渐增大,挂接部222逆时针越过第一连接点411时,主弹性件43的伸缩量变为最大,主弹性件43开始释放弹性力,拉动转轴44向下移动,之后主弹性件43伸长量逐渐变小,转轴44从第一象限移动至第四象限,第二连杆42随转轴44一起移动,第四连接点422顺时针转动从第二象限移动至第一象限,即转动轮13顺时针转动并且带动动触头14远离静触头15,动触头14最终抵靠在位于第三象限上的动触头引弧件141上, 在这个过程中锁定机构5未发生运动,断路器从合闸状态变为扣住状态。
当脱扣器16检测到电路本身出现故障时,脱扣器16触头产生位移带动牵引件53,牵引件53逆时针旋转,跳扣51在卡止面的位置对锁扣52作用,使锁扣52顺时针旋转,并下压滚轮547,使得过渡件543逆时针转动,直至进入第一通孔528,然后第二卡止端抵接在第一台阶面535处。
跳扣51逆时针转动带动第一连杆41一起运动,第一连接点411逆时针转动远离X轴,转轴44向下移动并从第一象限移动至第四象限,第二连杆42随转轴44一起移动,第四连接点422顺时针转动从第二象限移动至第一象限,即转动轮13顺时针转动并且带动动触头14远离静触头15,动触头14最终抵靠在位于第三象限上的动触头引弧件141上。在锁定机构5的带动下,动触头14和静触头15分离,断路器从合闸状态变为脱扣状态。
综上所述,本申请中的传动机构为横向传动并且传动方向与灭弧室的长度方向相平行,因此在断路器整体体积一定的前提下,灭弧室的尺寸设计更大,并且可以避免传动机构与其他部件之间发生干涉,提高整体可靠性。
虽然已经参考优选实施例对本申请进行了描述,但在不脱离本申请的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件,尤其是,只要不存在结构冲突,各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例,而是包括落入权利要求的范围内的所有技术方案。

Claims (29)

  1. 一种用于断路器的操作机构,包括操作组件、传动机构和锁定机构,
    所述操作组件包括支撑件和转动安装于所述支撑件的转动件,所述转动件具有在转动方向上的第一极限位和第二极限位;
    所述锁定机构包括跳扣、锁扣、与脱扣器耦合连接的牵引件、以及连接所述锁扣和所述牵引件的过渡件,所述锁定机构具有脱扣状态和扣住状态,所述锁定机构处于扣住状态时,所述跳扣和所述锁扣形成第一锁止位,所述过渡件与所述锁扣形成第二锁止位,所述过渡件与所述牵引件形成第三锁止位。
  2. 根据权利要求1所述的用于断路器的操作机构,其中,所述传动机构包括第一连杆、第二连杆、连接所述第一连杆和所述第二连杆的转轴以及主弹性件,所述第一连杆的其中一端具有与所述跳扣枢接的第一连接点,所述第一连杆的另一端具有与第二连杆连接的第二连接点,所述第二连杆的其中一端具有与所述第一连杆连接的第三连接点,所述第二连杆的另一端具有用于与断路器的转动轮连接的第四连接点,所述转轴设置于所述第二连接点和所述第三连接点之间;所述主弹性件的其中一端具有与所述转动件连接的第一安装位,另一端具有与所述转轴连接的第二安装位;
    在与所述转动轮连接的状态下,以所述转动轮的中心为原点建立平面直角坐标系,以所述断路器的长度方向为X轴方向,所述第一安装位、所述第一连接点、所述转轴、所述第四连接点沿X轴负方向依次布置形成传动链;所述第一锁止位、所述第二锁止位、所述第三锁止位沿X轴正方向依次布置形成锁定链。
  3. 根据权利要求2所述的用于断路器的操作机构,其中,以所述断路器的高度方向为Y轴方向,在Y轴方向上所述锁定链位于所述传动链的下方。
  4. 根据权利要求2所述的用于断路器的操作机构,其中,所述转动件位于第一极限位时,在X轴方向上,所述第二锁止位和所述第三锁止位位于所述第一安装位的两侧。
  5. 根据权利要求3所述的用于断路器的操作机构,其中,所述操作组件、所述锁定机构和所述主弹性件位于所述Y轴的右侧,
    所述第一连接点、所述第二连接点和所述第三连接点位于所述Y轴的右侧,所述第四连接点能够在所述Y轴的两侧往返运动,所述转轴能够在所述X轴的两侧往返运动。
  6. 根据权利要求3所述的用于断路器的操作机构,其中,
    所述支撑件包括在第一方向上相对的两个子侧板,所述子侧板具有由所述子侧板的一端向所述子侧板的中心区域凹陷的凹陷部;
    所述转动件转动连接于所述子侧板且能够部分旋转伸入所述凹陷部,所述转动件包括在所述第一方向上相对的两个转板、以及位于两个所述转板之间的挂接部,两个所述转板围设形成容纳空间,两个所述子侧板夹设于两个所述转板之间,所述转板具有用于连接所述子侧板的转轴连接端以及与所述转轴连接端相对的转动端,所述挂接部设置于所述转动端,所述挂接部用于挂接所述主弹性件;
    所述转动端安装有手柄,所述手柄紧邻所述挂接部设置。
  7. 根据权利要求6所述的用于断路器的操作机构,其中,所述锁扣和所述牵引件分别位于所述凹陷部的两侧,并可旋转的安装在所述支撑件上。
  8. 根据权利要求7所述的用于断路器的操作机构,其中,所述过渡件在所述Y轴方向上位于所述凹陷部的下方。
  9. 根据权利要求6所述的用于断路器的操作机构,其中,所述支撑件包括安装于所述子侧板的固定销,所述固定销套设有滚动轮,所述转轴连 接端具有卡接于所述滚动轮外圆周的弧形卡接面,所述挂接部包括本体,所述本体具有在所述第一方向上延伸、且开口背离所述容纳空间的轴销放置槽,所述轴销放置槽的底面贯穿设置有用于穿设所述主弹性件的通过孔。
  10. 根据权利要求9所述的用于断路器的操作机构,其中,所述转动件包括卡接部,所述卡接部和所述挂接部在所述转板旋转进入所述凹陷部的方向上依次设置于所述转动端,所述卡接部具有朝向所述容纳空间且呈角度连接的第一卡接面和第二卡接面,以及与所述第一卡接面背离设置的限位面,所述手柄抵接于所述限位面。
  11. 根据权利要求10所述的用于断路器的操作机构,其中,所述卡接部具有与所述第二卡接面背离设置、且连接于所述限位面的避让面,所述挂接部具有背离所述容纳空间的外表面,所述避让面位于所述限位面与所述外表面之间,所述避让面与所述限位面所成夹角为θ 1,所述避让面与所述外表面所成夹角为θ 2,其中,90°<θ 1<θ 2
  12. 根据权利要求6所述的用于断路器的操作机构,其中,所述转板的形状为扇形,所述转动端包括弧形边。
  13. 根据权利要求12所述的用于断路器的操作机构,其中,所述挂接部设置于所述弧形边旋转进入所述凹陷部中的端部,所述挂接部具有在所述转动方向上相对的第一端和第二端,所述挂接部的所述第一端与所述卡接部连接,所述卡接部通过所述挂接部连接于所述子侧板。
  14. 根据权利要求13所述的用于断路器的操作机构,其中,所述挂接部具有在第一方向上相对的第三端和第四端,所述第三端和所述第四端分别设置有沿所述第一方向延伸的插销,所述转动端设置有沿所述第一方向延伸的插柱,所述插柱上开设有插接孔,所述插销与所述插接孔过盈配合。
  15. 根据权利要求2所述的用于断路器的操作机构,其中,所述第一连接点用于围绕第一特定点转动,所述第四连接点用于围绕第二特定点转动;
    其中,所述主弹性件在外力作用下向所述转轴施加力,以使所述转轴向与所述第一连接点及所述第四连接点连线方向相交的方向移动。
  16. 根据权利要求15所述的用于断路器的操作机构,其中,所述主弹性件具有拉伸状态和复位状态,所述主弹性件在复位状态下的长度始终大于所述第一连杆的长度。
  17. 根据权利要求15所述的用于断路器的操作机构,其中,所述第一特定点和所述第二特定点分别位于所述第四连接点与所述转轴连线的两侧。
  18. 根据权利要求15所述的用于断路器的操作机构,其中,所述第二特定点到所述转轴的距离始终大于所述第二特定点到所述第四连接点的距离。
  19. 根据权利要求15所述的用于断路器的操作机构,其中,所述转动轮包括第一转动部以及环绕在所述第一转动部外的外周部,所述第一转动部转动设置在壳体上,所述第二连杆通过所述第四连接点与所述外周部相连接,所述第一特定点与所述第一转动部位置重合。
  20. 根据权利要求15所述的用于断路器的操作机构,其中,所述操作组件发出第一信号并通过所述传动机构传递至所述转动轮,以带动动触头运动。
  21. 根据权利要求15所述的用于断路器的操作机构,其中,所述锁定机构发出第二信号并通过所述传动机构传递至所述转动轮,以带动动触头运动。
  22. 根据权利要求21所述的用于断路器的操作机构,还包括脱扣器,所述脱扣器向所述牵引件发送所述第二信号。
  23. 根据权利要求1所述的用于断路器的操作机构,其中,所述跳扣包括沿第三方向相对的两个第一侧板,以及连接两个所述第一侧板同一端的连接板,所述连接板具有在自身厚度方向上相背的第一表面、第二表面,以及连接于所述第一表面和所述第二表面的卡止面;
    所述锁扣包括卡止配合部,以及与所述卡止配合部经由过渡连接部在第四方向上错位连接的第一传动部,所述卡止配合部包括在所述第四方向上相背的第一侧面、第二侧面,以及连接于所述第一侧面的所述卡止配合面;
    所述牵引件包括基体,以及位于所述基体相对两侧的第二传动部和阶梯结构,所述基体设置有转动轴,所述阶梯结构包括相连接的第一台阶面和第二台阶面,所述第二台阶面连接于所述第一台阶面远离所述基体的一侧。
  24. 根据权利要求23所述的用于断路器的操作机构,还包括第一伸缩件和第二伸缩件,所述过渡件位于所述第二侧面远离所述第一侧面的一侧,所述过渡件包括间隔设置的第一卡止端、第二卡止端和连接端,所述第一卡止端抵接于所述第二侧面,所述第二卡止端抵接于所述阶梯结构;
    所述第一伸缩件的一端连接于所述第一传动部,另一端连接于所述连接端,所述第二伸缩件的一端连接于所述基体,另一端连接于所述支撑件。
  25. 根据权利要求23所述的用于断路器的操作机构,其中,所述第一侧板包括安装耳和传动臂,所述安装耳位于所述第一侧板远离所述连接板的一端,所述传动臂位于所述安装耳和所述第一侧板连接所述连接板的端部之间,所述传动臂与所述卡止面共同位于所述安装耳的同侧,所述传动臂包括呈角度的第一抵接面和第二抵接面,所述第一抵接面和所述第二抵接面用于形成卡接的卡止位。
  26. 根据权利要求25所述的用于断路器的操作机构,其中,所述跳扣包括导向板,所述导向板连接于所述连接板与所述卡止面相对的连接面,且由所述连接面向远离所述卡止面的方向延伸,所述导向板具有远离所述安装耳一侧的弧形导向面,所述第一侧面设置有凸起,所述跳扣逆时针旋转时,所述弧形导向面抵接于所述凸起。
  27. 根据权利要求23所述的用于断路器的操作机构,其中,所述过渡连接部开设有在厚度方向上贯穿自身的第一避让孔,所述卡止配合面至少部分穿过所述第一避让孔;所述第一传动部具有沿所述第四方向贯穿自身的第二避让孔,所述第二避让孔和所述第一避让孔相连通。
  28. 根据权利要求23所述的用于断路器的操作机构,其中,所述过渡件包括两个相对设置的Y型夹板,所述Y型夹板包括第一自由端、第二自由端和第三自由端,两个所述第一自由端穿设有第一轴杆,两个所述第二自由端穿设有第二轴杆,所述第一轴杆位于两个所述Y型夹板之间的部分套设有滚轮,所述滚轮在所述第二锁止位和所述第四锁止位之间运动,所述第二轴杆位于两个所述Y型夹板之间的部分在所述第一台阶面和所述第二台阶面之间运动。
  29. 根据权利要求1所述的用于断路器的操作机构,其中,所述锁定机构围设形成一内凹空间,所述操作组件在所述内凹空间的凹陷部内滑动并向所述传动机构发出第一信号,以带动动触头运动。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117110668A (zh) * 2023-10-20 2023-11-24 福建德普乐能源科技有限公司 固封极柱检测用固定工装

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258733A (en) * 1992-08-06 1993-11-02 Eaton Corporation Molded case circuit breaker having improved trip unit
EP1353349A2 (de) * 2002-04-12 2003-10-15 ABB PATENT GmbH Hilfsschalter
CN101488423A (zh) * 2008-01-14 2009-07-22 上海电器科学研究所(集团)有限公司 选择性保护开关及其操作机构
CN101685729A (zh) * 2008-09-26 2010-03-31 浙江正泰电器股份有限公司 一种开关设备的自由脱扣机构
CN203038867U (zh) * 2012-12-28 2013-07-03 常熟开关制造有限公司(原常熟开关厂) 电路断路器的操作机构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258733A (en) * 1992-08-06 1993-11-02 Eaton Corporation Molded case circuit breaker having improved trip unit
EP1353349A2 (de) * 2002-04-12 2003-10-15 ABB PATENT GmbH Hilfsschalter
CN101488423A (zh) * 2008-01-14 2009-07-22 上海电器科学研究所(集团)有限公司 选择性保护开关及其操作机构
CN101685729A (zh) * 2008-09-26 2010-03-31 浙江正泰电器股份有限公司 一种开关设备的自由脱扣机构
CN203038867U (zh) * 2012-12-28 2013-07-03 常熟开关制造有限公司(原常熟开关厂) 电路断路器的操作机构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117110668A (zh) * 2023-10-20 2023-11-24 福建德普乐能源科技有限公司 固封极柱检测用固定工装
CN117110668B (zh) * 2023-10-20 2023-12-26 福建德普乐能源科技有限公司 固封极柱检测用固定工装

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