WO2023098841A1 - 一种断路器 - Google Patents

一种断路器 Download PDF

Info

Publication number
WO2023098841A1
WO2023098841A1 PCT/CN2022/136052 CN2022136052W WO2023098841A1 WO 2023098841 A1 WO2023098841 A1 WO 2023098841A1 CN 2022136052 W CN2022136052 W CN 2022136052W WO 2023098841 A1 WO2023098841 A1 WO 2023098841A1
Authority
WO
WIPO (PCT)
Prior art keywords
jumper
lock
lever
buckle
connecting rod
Prior art date
Application number
PCT/CN2022/136052
Other languages
English (en)
French (fr)
Inventor
单小龙
葛伟骏
潘友义
Original Assignee
上海正泰智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202111467381.0A external-priority patent/CN116230456A/zh
Priority claimed from CN202123272320.7U external-priority patent/CN217333981U/zh
Application filed by 上海正泰智能科技有限公司 filed Critical 上海正泰智能科技有限公司
Priority to AU2022399749A priority Critical patent/AU2022399749A1/en
Priority to EP22900645.7A priority patent/EP4318536A1/en
Publication of WO2023098841A1 publication Critical patent/WO2023098841A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/521—Details concerning the lever handle

Definitions

  • the invention relates to the technical field of low-voltage electrical appliances, in particular to a circuit breaker.
  • the operating mechanism is the most basic functional module inside an electrical product, and occupies a large proportion of space in the structural layout of the entire electrical product.
  • the miniaturization and compactness of the operating mechanism is a main direction for realizing the miniaturization and intelligence of electrical products.
  • Most of the existing circuit breaker products use a four-bar linkage operating mechanism, the component layout is scattered, and the limited space is fragmented and cannot be effectively used, which limits the multi-functional development of the product.
  • the overload system of the miniature circuit breaker generally disconnects the circuit by tripping the operating mechanism driven by the bending of the bimetal sheet. Specifically: one end of the bimetal sheet is fixed, and the other end is bent and bent by heating, and the lock of the operating mechanism is driven by the pull rod to rotate. Make it release the hasp fit with the jumper; the entire overload system takes up a lot of space, causing the internal space of the circuit breaker to be tight.
  • the purpose of the invention is to overcome the defects of the prior art and provide a circuit breaker with compact structure and high operational reliability.
  • the present invention adopts the following technical solutions:
  • a circuit breaker comprising a housing, a handle, a first link, a jumper, a lock, a second link, a lever, a moving contact and a static contact, the jumper and the lock are respectively pivotally mounted on the housing
  • the jumper is provided with a chute and a jumper buckle part for snapping with the buckle table of the lock
  • the handle is pivotally mounted on the housing, and one end of the first connecting rod Connected with the handle, the other end of the first connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is connected with the lever, the hinged ends of the first connecting rod and the second connecting rod are connected with the jumper
  • the chute is slidingly fitted;
  • the lever is pivotally mounted on the housing, one end of the movable contact is mounted on the lever, and the other end of the movable contact is arranged correspondingly to the static contact.
  • the handle is rotatably installed through the first rotating shaft
  • the lock is rotatably installed through the third rotating shaft
  • one end of the jumper is rotatably installed through the second rotating shaft
  • the edge of the buckle at the other end engages with the lock.
  • the first rotating shaft, the third rotating shaft and the second rotating shaft are located at the three vertices of an obtuse triangle, wherein the first rotating shaft is located at the obtuse vertices of the obtuse triangle.
  • one end of the jumper is rotatably installed, and the other end is provided with a jumper hasp that cooperates with the lock hasp, and the chute is arranged between the rotation axis of the jumper and the jumper, so that One end of the lock buckle is rotated and installed, and the other end is provided with a trip driving part for triggering tripping, and the lock buckle is provided with a sliding surface that is slidably matched with the jump buckle buckle part of the jump buckle.
  • Raised buckle stand for snap fit of the buckle part.
  • the lock and the lever are arranged on the same rotation shaft, and the lever is rotatably sleeved on the third rotation shaft of the casing through the third shaft hole thereon, and a lever for resetting the lever is provided between the lever and the casing.
  • the lever elastic part, the lock catch is rotatably sleeved on the third rotating shaft of the casing through the fourth shaft hole thereon, and a lock catch elastic part for resetting the lock catch is arranged between the lock catch and the casing.
  • the chute of the jumper is F1 under the pressure of the hinged ends of the first connecting rod and the second connecting rod, and the force arm is L1, and the jumper hasp part of the jumper is
  • the positive pressure of the latched buckle table is F2
  • the force arm is L2, wherein the length ratio of the force arm L1 to L2 is less than 1/4.
  • the jumper includes a jumper rotating part, a chute section and a jumper arm that are connected in sequence, the jumper rotating part is provided with a second shaft hole, and the chute section is provided with a chute, so
  • the end corner of the jumper hasp arm is provided with a raised hasp hook, and the end face of the jumper hasp arm is provided with a raised sliding arc surface that is slidably matched with the lock.
  • the junction of the surface and the buckle hook is a buckle edge that can be buckled with the buckle platform of the buckle.
  • the line connecting the rotation axis of the jumper through the center 0 of the sliding arc surface to the sliding arc surface is L3
  • the line connecting the rotation axis of the jumper to the edge of the buckle is L4, so
  • one end of the lock is provided with a fourth shaft hole, and the bottom surface of the other end of the lock is provided with a trip driving part protruding downward;
  • a downwardly protruding locking protrusion and an avoidance groove for avoiding the second connecting rod is formed between the locking protrusion and the tripping driving part, and a guide protrusion protruding sideways is provided on the locking protrusion
  • a buckle platform for cooperating with the jumper hasp is provided on the side of the said locking protrusion, and the guide protrusion is spaced apart from the bottom surface of the lock.
  • a downwardly protruding linkage shaft is provided on the bottom surface of the lock buckle, and a linkage groove is provided on the top surface of the lock buckle at a position corresponding to the linkage shaft.
  • the second connecting rod includes two connecting rod pieces and a connecting rib connected between the two connecting rod pieces, and there is a snap-fitting gap between the two connecting rod pieces, which is used to avoid jumpers and or As for the lock buckle, one end of the two connecting rod pieces is aligned with a second hinge hole for hinged connection with the first connecting rod, and the other ends of the two connecting rod pieces are aligned with a third hinge hole for hinged connection with the lever.
  • the moving contact is provided with a stop protrusion
  • the lever is provided with a stop boss corresponding to the stop protrusion
  • the lever includes a lever plate, a support boss arranged on the lever plate, and a fourth rotating shaft for the pivotal installation of the movable contact is arranged on the support boss; one corner of the lever plate extends outward to form a
  • the extension part is provided with a limit slope on one side of the connection with the lever plate, which is used to cooperate with the limit cylinder of the housing, and the other side is provided with a fourth hinge hole for hinged connection with the second connecting rod ;
  • the end of the extension is provided with a third shaft hole for pivotal installation of the lever.
  • the first connecting rod is a U-shaped rod, one end of the U-shaped rod is hinged to the first hinge hole of the handle, the other end of the U-shaped rod is hinged to the second hinged hole of the second connecting rod, and is inserted into the Inside the chute of the jumper.
  • the lock is driven by an external force and rotates in the direction of tripping to release the snap fit with the jumper, so that the operating mechanism of the circuit breaker is released;
  • the circuit breaker also includes a pull rod that is slidably arranged.
  • the buckle drives the matching pull rod driving part.
  • the pull rod drives the lock buckle to rotate in the direction of release through the pull rod driving part;
  • a first idle stroke is set between the lock buckle and the pull rod driving part, and the lock buckle
  • the lock catch When being driven by an external force from the pull rod to rotate in the direction of tripping, the lock catch first travels through a first idle stroke relative to the drive part of the pull rod.
  • the lock catch is in contact with the pull rod driving part after going through a first idle stroke.
  • the pull rod driving part is provided with a pull rod waist hole
  • the circuit breaker also includes a hinge shaft connected to the lock and inserted into the pull rod waist hole, and the lock walks through the first space relative to the pull rod drive part During the stroke, the hinge shaft moves in the waist hole of the tie rod.
  • the pull rod further includes a pull rod connecting part and a pull rod driven part, the pull rod driven part, the pull rod connecting part and the pull rod driven part are connected in sequence, the pull rod connecting part is provided with a pull rod sliding hole, the pull rod sliding hole is a waist-shaped hole and Sleeved on the sliding shaft of the pull rod on the housing;
  • the circuit breaker also includes a bimetal and/or magnetic flux tripper, and the bimetal and/or magnetic flux tripper is driven and matched with the pull rod driven part to drive The lever slides.
  • the circuit breaker created by the present invention has a compact structure, a concentrated occupied space, and a small proportion.
  • the operating mechanism makes full use of the limited internal space, and can integrate more functional modules in the limited internal space of the product to realize more functions of the product.
  • the first idle stroke eliminates or reduces the moving distance of the pull rod when it is not working (that is, the distance driven by the lock), thereby reducing the installation and working space required by the pull rod, which is beneficial to Improve the compactness of the trip mechanism.
  • Fig. 1 is a perspective view when the circuit breaker of the present invention is in a disconnected state
  • Fig. 2 is a front view of the circuit breaker of the present invention when it is in a disconnected state
  • Fig. 3 is an anatomical diagram of the partial structure of the separation of the jumper and the lock when the contact of the circuit breaker of the invention is in the disconnected position;
  • Fig. 5 is a front view of the circuit breaker of the present invention when it is in a closed state
  • Fig. 7 is an anatomical diagram of the local structure of the inventive circuit breaker in state one of the tripping process
  • Fig. 8 is an anatomical diagram of the partial structure of the inventive circuit breaker in state 2 of the tripping process
  • Fig. 9 is an anatomical diagram of the local structure of the inventive circuit breaker in the third state of the tripping process
  • Fig. 10 is a perspective view of the inventive circuit breaker in the third state of the tripping process
  • Fig. 11 is a schematic diagram of the base structure of the housing of the present invention.
  • Fig. 12 is a structural schematic diagram of the inventive handle
  • Fig. 13 is a perspective view of the jump button created by the present invention.
  • Fig. 14 is the front view of jump button of the present invention.
  • Fig. 15 is a front perspective view of the buckle of the present invention.
  • Fig. 16 is a reverse perspective view of the inventive buckle
  • Fig. 17 is a perspective view of the inventive connecting rod
  • Figure 18 is a perspective view of the inventive lever
  • Fig. 19 is a structural schematic diagram of the movable contact created by the present invention.
  • Fig. 20 is a projected view of the circuit breaker of the present invention when it is in a closed state
  • Figure 21 is a diagram of the coordination relationship between the lock, the pull rod and the bimetal of the present invention.
  • Fig. 22 is a perspective view of the pull rod created by the present invention.
  • circuit breaker created by the present invention will be further described below with reference to the embodiments given in accompanying drawings 1 to 22 .
  • the circuit breaker created by the present invention is not limited to the description of the following embodiments.
  • the circuit breaker of the present invention includes a housing 1 , an operating mechanism, a moving contact 8 , a static contact 9 and a release 101 .
  • the operating mechanism includes a handle 2, a first link 3, a jumper 4, a lock 5, a second link 7 and a lever 6, and the jumper 4 and the lock 5 are respectively pivotally mounted on the base of the housing 1
  • the buckle 5 is provided with a trip driving part 56 corresponding to the tripper 101
  • the buckle 4 is provided with a chute 42 and a jumper for buckling with the buckle platform 53 of the buckle 5
  • the buckle part, the jumper buckle part in this embodiment is the buckle edge 43 used to buckle with the buckle platform 53 of the buckle 5 .
  • the handle 2 is pivotally mounted on the base plate of the housing 1, one end of the first connecting rod 3 is connected to the handle 2, the other end of the first connecting rod 3 is hinged to one end of the second connecting rod 7, the The other end of the second connecting rod 7 is connected with the lever 6, and the hinged end of the first connecting rod 3 and the second connecting rod 7 is inserted into the chute 42 of the jumper 4, and slides along the chute 42; the lever 6 pivots Rotation is installed on the housing 1, one end of the moving contact 8 is installed on the lever 6, and the other end of the moving contact 8 is set corresponding to the static contact 9.
  • the circuit breaker created by the present invention is a cam-five-bar linkage mechanism consisting of a jumper 4 with a chute 42, a housing 1, a handle 2, a first connecting rod 3, a second connecting rod 7, and a lever 6.
  • the five-bar linkage mechanism consisting of housing 1, handle 2, first connecting rod 3, second connecting rod 7, and lever 6 has two degrees of freedom, and then connects one end of the first connecting rod 3 with the second connecting rod 7
  • the hinged end is limited to move on the cam formed by the fixed chute 42, thereby limiting one degree of freedom, thus forming a cam-five-link transmission mechanism with one degree of freedom.
  • the tripping mechanism and the transmission mechanism composed of jumpers and locks are basically separate and independent mechanisms, so that when the operating mechanism is normally closed and disconnected, the tripping mechanism is basically in a static state, which greatly improves the reliability of the entire mechanism. sex.
  • the handle 2 of this embodiment is installed by rotation through the first rotating shaft 12, the lock catch 5 is installed by rotating on the third rotating shaft 14, one end of the jumper 4 is installed by rotating on the second rotating shaft 11, and the latch at the other end
  • the buckle edge 43 is snap-fitted with the lock buckle 5, and the first rotating shaft 12, the third rotating shaft 14 and the second rotating shaft 11 are located at the three vertices of an obtuse triangle, wherein the first rotating shaft 12 is located at the point of the obtuse triangle. At the apex of an obtuse angle.
  • the lever 6 is installed in rotation through the third rotating shaft 14, with the hinged end of the lever 6 and the second connecting rod 7 as the movable apex, and the first rotating shaft 12, the second rotating shaft 11 and the third rotating shaft 14 as the fixed apex to form a movable Quadrilateral, wherein the first rotating shaft 12 and the third rotating shaft 14 are located at two obtuse angle vertices on a common side of the movable quadrangle, the hinged ends of the lever 6 and the second connecting rod 7, and the second rotating shaft 11 are located at the movable quadrangle At the vertices of two acute angles on the common side of .
  • obtuse-angle features, acute-angle features, triangles, and the order of vertices of the triangles in this embodiment are only one embodiment, and cannot represent all other embodiments, and cannot limit the maximum protection scope of this case.
  • one end of the jumper 4 is rotatably installed under one side of the handle 2, between the handle 2 and the tripper 101, and the lock 5 and the lever 6 are rotatably installed on
  • the other end of the jumper 4 basically extends horizontally from the bottom of the handle 2 to the other side of the handle 2 to snap fit with the lock 5, and the second connecting rod 7 is basically horizontally arranged on the handle.
  • the circuit breaker created by the present invention has a compact structure and a reasonable layout , the occupied space is concentrated and the proportion is small, the operating mechanism makes full use of the limited internal space, and can integrate more functional modules in the limited internal space of the product to realize more functions of the product.
  • the chute of the jumper is F1 under the pressure of the hinged ends of the first connecting rod and the second connecting rod, and the moment arm is L1, and the jumper hasp part of the jumper is
  • the positive pressure of the latched buckle table is F2
  • the force arm is L2, wherein the length ratio of the force arm L1 to L2 is less than 1/4.
  • the ratio of the lengths of the moment arms L1 to L2 is less than 1/6.
  • the release 101 of this embodiment is an electromagnetic release, which can trigger the lock 5 when the circuit breaker is short-circuited, and release the snap fit between the lock 5 and the jumper 4, so that the circuit breaker is tripped and disconnected to realize circuit protection.
  • the tripper 101 is connected to the static contact 9, and an arc extinguishing chamber can be set under the tripping device 101, and connecting terminals are respectively arranged on both sides of the circuit breaker, and the static contact 9 is located at the entrance of the arc extinguishing chamber side above.
  • the tripper 101 can also be a leakage tripper or an overload tripper, and an electromagnetic tripper, a leakage tripper or an overload tripper can also be set in the circuit breaker as required. It is used to drive the lock catch 5 during a failure, which is a prior art in the art and will not be repeated here.
  • the housing 1 of the present invention includes a matching and fastening upper cover (not shown in the figure) and a base, and a first rotating shaft 12 for the pivotal installation of the handle 2 is provided on the bottom plate of the base of the housing 1 , the second rotating shaft 11 for the pivotal installation of the jumper 4 , the third rotating shaft 14 for the pivotal installation of the lever 6 and the lock 5 , the first resisting boss 13 , and the limit cylinder 15 .
  • the lock 5 and the lever 6 are coaxially rotatably mounted on the third shaft 14, and are stacked to save space; of course, the shaft centers of the lock 5 and the lever 6 can also be different.
  • the handle 2 of the present invention includes a hand-held part 21 and a rotating part 22 integrally connected.
  • the hand-held part 21 at one end of the handle 2 protrudes out of the housing 1 and can be used for pulling operation.
  • the rotation of the other end The portion 22 is provided with a first shaft hole 23 for being pivotally mounted on the housing 1 and a first hinge hole 24 for being hinged with the first connecting rod 3 .
  • the handle 2 is rotatably sleeved on the first rotating shaft 12 of the housing 1 through the first shaft hole 23 on the rotating portion 22 .
  • a fourth torsion spring for resetting the handle 2 is installed at the pivot connection between the handle 2 and the housing 1 , one leg of the fourth torsion spring abuts on the housing 1 , and the other leg abuts on the handle 2 .
  • the two ends of the rotation stroke of the handle 2 cooperate with the operation stopper of the housing 1 to limit the two ends of the stroke of the handle 2 .
  • the handle 21 of the handle 2 is resisted by the operation stopper of the housing 1 at the left end; as shown in Figure 5, when the circuit breaker is in the closed state, the The handle portion 21 of the handle 2 is resisted by the operation stop member of the housing 1 at the right end.
  • the first connecting rod 3 of this embodiment is a U-shaped rod
  • the first connecting rod 3 is a U-shaped rod
  • one end of the U-shaped rod is hinged with the first hinge hole 24 of the handle 2
  • the other end of the U-shaped rod It is hinged with the second hinge hole 71 of the second connecting rod 7, and is inserted into the chute 42 of the jumper 4, and the end connected with the U-shaped rod and the second connecting rod 7 is directly used as the hinge shaft inserted into the chute 42 ,
  • the structure is simple and easy to assemble.
  • the jumper 4 created by the present invention has an integrated structure, including a jumper rotating part 401, a chute section 402 and a jumper arm 403 connected in sequence, and the jumper rotating part 401 is cylindrical.
  • the chute section 402 becomes a square block
  • the jumper hasp arm 403 becomes an L-shaped block
  • the chute section 402 and the jumper hasp arm 403 are bent and connected
  • the jumper hasp arm then faces away from the handle 2
  • the bottom is slightly inclined, wherein the chute section 402 and the jumper hasp arm 403 can match the engagement gap 75 of the second connecting rod 7, and the chute section 402 is flush with the top and bottom surfaces of the jumper hasp arm 403, so
  • the jumper rotating part 401 protrudes from the top surface of the chute section 402, and the jumper rotating part 401 is provided with a gap to avoid the second connecting rod 7; the jumper rotating part 401 is provided with a second shaft hole 41, the jumper
  • the buckle 4 is rotatably sle
  • the outside of the corner of the L-shaped block-shaped jumper arm 403 is provided with a raised hasp hook, and the end surface of the jumper arm 403 is provided with a raised hook that is slidably matched with the lock 5
  • the sliding arc surface 44 where the sliding arc surface 44 meets the buckle hook is a buckle edge 43 that can be buckled with the buckle platform 53 of the lock 5 .
  • the point where the center 0 of the sliding arc surface 44 where the buckle edge 43 is located and the line connecting the rotation axis of the jumper 4 and the sliding arc surface 44 intersects is the sliding arc where the buckle edge 43 is located.
  • the surface 44 is farthest away from the rotation axis of the jumper 4 and is located above the hasp hook, forming a cam.
  • the axis of rotation of jumper 4 passes through the center 0 of the sliding arc surface 44 where the edge 43 of the hasp is located to the connecting line of the sliding arc 44 is L3, and the axis of rotation of jumper 4 reaches the hasp
  • the connecting line of edge 43 is L4, and there is an angle a between the connecting line L3 and L4, and a is an acute angle and the angle is small.
  • the lengths of L3 and L4 are constant, the smaller the angle a, the lock 5 rotates faster, and the length of the connection line L3 is greater than the length of the connection line L4.
  • the operating mechanism is converted into a five-bar linkage consisting of the housing 1, the handle 2, the first connecting rod 3, the second connecting rod 7, and the lever 6 ( Not including the jump button 4), the five-link mechanism has two degrees of freedom, the lever 6 rotates counterclockwise under the action of the first torsion spring 102, and then drives the second connecting rod 7 and the first connecting rod 3 to move, and the jumper
  • the buckle 4 is pulled by the second connecting rod 7 and rotates quickly around the second rotating shaft 11, as shown in Figure 8, the sliding arc surface 44 of the jumper 4 is aligned with the guide protrusion 54 ( Figure 16) as the sliding surface of the lock 5.
  • the rotation angle of the lock catch 5 is determined by the difference between the connection line L3 and the connection line L4 of the jumper 4, and is proportional to the difference between the connection line L3 and the connection line L4.
  • the jumper 4 turns through the maximum angle, and then The sharp point feature 45 of jumper 4 cannot exceed the surface where locker 5 guiding protrusion 54 is located, so as to prevent locker 5 from blocking jumper 4 and jumper 4 cannot be reset.
  • one end of the lock 5 of the present invention is provided with a fourth shaft hole 51, and the lock 5 is rotatably sleeved on the third side of the housing 1 through the fourth shaft hole 51.
  • the bottom surface of the other end of the lock catch 5 is provided with a trip driving part 56 protruding downward, which is arranged corresponding to the thimble of the trip unit 101 of the circuit breaker and is located on the side of the trip unit 101;
  • the lock The bottom surface of the middle part of the buckle 5 near the fourth shaft hole 51 is provided with a downwardly protruding locking protrusion 50 , and an avoidance groove for avoiding the second connecting rod 7 is formed between the locking protrusion 50 and the trip driving part 56
  • the lock protrusion 50 is provided with a downwardly protruding linkage shaft 52 and a sideways protruding guide protrusion 54 as a sliding surface for matching with the jumper 4 , and on the side of the lock protrusion 50 Hasp table 53
  • One side of the lock 5 is provided with a linkage shaft 52, which can be plugged into the linkage groove 55 adjacent to the circuit breaker.
  • the other side of the lock 5 is provided with a linkage groove 55, which can be inserted with another linkage shaft 52 adjacent to the circuit breaker.
  • 5 can be respectively linked with the operating mechanisms of two adjacent circuit breakers through the linkage shaft 52 and the linkage groove 55 on it.
  • the slot 55 drives the operating mechanism of the adjacent circuit breaker to trip, thereby realizing linkage between poles of the circuit breaker.
  • the lock catch 5 may also only be provided with a linkage shaft 52 or a linkage slot 55 for plugging into an operating mechanism of an adjacent circuit breaker.
  • the second connecting rod 7 created by the present invention includes two connecting rod pieces 73 and two connecting ribs 74 connected between the two connecting rod pieces 73, and the two connecting ribs 74 are spaced apart. And be located on the same side of the two connecting rod pieces 73, there is a snap-in gap 75 between the two connecting rod pieces 73, for avoiding the jumper 4 and or the lock 5 and or the lever 6, the two connecting rods One end of the piece 73 is aligned with a second hinge hole 71 for hinged with the first connecting rod 3 , and the other ends of the two connecting rod pieces 73 are aligned with a third hinged hole 72 for hinged with the lever 6 .
  • the second hinge hole 71 of the second connecting rod 7 is opposite to the chute 42 of the jumper 4, and the first connecting rod 3 One end can pass through the chute 42 of the jumper 4 and the two second hinge holes 71 at one end of the second connecting rod 7 at the same time.
  • the second connecting rod 7 adopts two connecting rod pieces 73 to form a clamping gap 75 for avoiding and connecting the jumper 4 and the lever 6, which is reliable without connection and takes up little space.
  • the lever 6 of the present invention includes a lever plate 60, a connecting rib 600 arranged on the lever plate 60, a support boss 68, a stop boss 66 and a third resist boss 65, the connection
  • the raised rib 600 is arranged along the edge of the lever plate 60, and is located between the stop boss 66 and the third resist boss 65, and the support boss 68 is provided with a fourth rotating shaft for the pivotal installation of the movable contact 8 67
  • the support boss 68 is connected with the stop boss 66 and the connecting rib 600, and is lower than the stop boss 66 and the connecting rib 600 so as to form an avoidance space for avoiding the moving contact 8, said One end of the movable contact 8 is rotatably sleeved on the fourth rotating shaft 67 of the lever 6 through the fifth shaft hole 82 thereon, and falls on the supporting boss 68;
  • the third resisting boss 65 is arranged on the lever plate 60, and the corner of the lever plate 60 extends outwards to form an extension 601.
  • the extension 601 is provided with a limiting inclined surface 64 on the side of the connection with the lever plate 60, which is opposite to the limiting cylinder 15 of the housing 1.
  • Matching, the other side is provided with a circular clamping part 602, which matches with the clamping gap 75 of the second connecting rod 7, and the clamping part 602 is provided with a fourth hinge hole 63 for connecting with the second connecting rod 7.
  • the two connecting rods 7 are connected; the bottom surface of the middle part of the extension 601 is provided with a second resisting boss 62 for abutting against a foot of the first torsion spring 102, and the end of the extension 601 is provided with a lever 6
  • the pivotally installed third shaft hole 61 is matched with the third shaft 14 of the casing 1 .
  • the limiting slope 64 of the lever 6 is in contact with the limiting cylinder 15 of the housing 1, and the moving contact 8 and the static contact 9 are in a separated position to locate and limit the position of the lever 6 when the circuit breaker is disconnected or tripped. end.
  • One end of the first connecting rod 3 is hinged with the first hinge hole 24 of the handle 2, and the other end of the first connecting rod 3 is hinged with the second hinge hole 71 of the second connecting rod 7, and inserted into the chute of the jumper 4 42; the clamping part 602 of the lever 6 is clamped into the clamping gap 75 of the second connecting rod 7, the third hinge hole 72 of the second connecting rod 7 is aligned with the fourth hinge hole 63 of the lever 6, and the pin can be inserted Realize that the second connecting rod 7 is hinged with the lever 6 .
  • one end of the lock catch 5 is pivotally installed on the housing 1 at the side of the handle 2, and the other end is located at the side of the tripper 101, and one end of the lever 6 is pivotally installed
  • the housing 1 is located on the side of the handle 2
  • the other end of the lever 6 is located on the side of the tripper 101 .
  • the lock catch 5 is stacked on the lever 6 and arranged on the same rotation axis as the lever 6, and the lever 6 is rotatably sleeved on the third rotation shaft 14 of the housing 1 through the third shaft hole 61 thereon,
  • a lever elastic member for resetting the lever 6 is provided between the lever 6 and the housing 1, and the lock catch 5 is rotatably sleeved on the third rotating shaft 14 of the housing 1 through the fourth shaft hole 51 thereon.
  • a lock elastic member for resetting the lock 5 is provided between the lock 5 and the housing 1 .
  • the elastic member of the lever is a first torsion spring 102
  • the first torsion spring 102 for resetting the lever 6 is installed at the pivotal connection between the lever 6 and the housing 1, and one foot of the first torsion spring 102 rests against Connected to the first resisting boss 13 of the housing 1, the other foot abuts on the second resisting boss 62 of the lever 6;
  • the elastic member of the lock is the second torsion spring 103, which is connected between the lock 5 and the shell.
  • a second torsion spring 103 for resetting the lock catch 5 is installed at the pivot joint of the body 1 , one leg of the second torsion spring 103 abuts on the housing 1 , and the other leg abuts on the lock catch 5 .
  • the tripping mechanism composed of the jumper 4 and the lock 5 is in a static state when the operating mechanism is normally closed and disconnected.
  • the tripper 101 drives the lock.
  • the buckle 5 rotates counterclockwise, the buckle edge 43 is separated from the buckle table 53, the lock buckle 5 rotates around the third rotating shaft 14, and the cam-five-bar linkage mechanism is transformed into a six-bar linkage mechanism, and the six-bar linkage mechanism has two degrees of freedom , the lever 6 returns to the disconnected position under the drive of the first torsion spring 102 .
  • the movable contact 8 created by the present invention is pivotally installed on the lever 6, and an overtravel elastic member is arranged between the movable contact 8 and the lever 6, and the movable contact 8 passes through the
  • the fifth shaft hole 82 is rotatably sleeved on the fourth shaft 67 of the lever 6;
  • the overtravel elastic member is a third torsion spring 104, and a third torsion spring is provided at the pivot connection between the movable contact 8 and the lever 6 104 , one leg of the third torsion spring 104 abuts against the third resisting boss 65 of the lever 6 , and the other leg abuts against the resisting side 83 on one side of the moving contact 8 .
  • a stop protrusion 81 is provided on the other side of the movable contact 8 , and a stop boss 66 corresponding to the stop protrusion 81 is provided on the lever 6 . Further, as shown in FIG. 19 , the side of the moving contact 8 is provided with a raised contact arc surface 84 , which can be contacted and connected with the static contact 9 . The stop protrusion 81 of the moving contact 8 is in contact with the stop boss 66. When the moving contact 8 and the static contact 9 are in the disconnected state, the third torsion spring 104 exerts a preliminary force on the moving contact 8 and the lever 6.
  • the moving contact 8 and the lever 6 form an integral movement, when the moving contact 8 contacts the static contact 9, the moving contact 8 rotates a certain angle around the fourth rotating shaft 67 relative to the lever 6, and the stop protrusion 81 and the stop
  • the blocking boss 66 is separated, and the third torsion spring 104 exerts a final pressure on the movable contact to ensure reliable contact between the movable contact 8 and the static contact 9 .
  • the sliding friction on the surface of the head 9 can effectively remove the oxide film on the surface of the movable and static contacts, and improve the conductivity between the movable and static contacts.
  • the present invention creates a circuit breaker.
  • the lock 5 is driven by an external force and rotates in the direction of tripping to release the hasp cooperation with the jumper 4, so that the operating mechanism is released; the present invention also creates a circuit breaker.
  • the tripping mechanism includes a slidingly arranged pull rod 7a, the pull rod 7a includes a pull rod driving part 71a that is driven and matched with the lock catch 5, and the pull rod 7a includes a pull rod driving part 71a that is driven and matched with the lock catch 5, and the pull rod 7a is subjected to a force
  • the pull rod 7a drives the lock catch 5 to rotate in the tripping direction through the pull rod drive part 71a; a first idle stroke is set between the lock catch 5 and the pull rod drive part 71a, and the lock catch 5 receives the force from outside the pull rod 7a.
  • the lock catch 5 When driven by an active force to rotate in the tripping direction, the lock catch 5 first travels through a first idle stroke relative to the pull rod driving portion 71a.
  • the first idle stroke eliminates or reduces the moving distance (that is, the distance driven by the lock 5) when the pull rod 7 is not working, thereby reducing the required installation and working space of the pull rod 7, It is beneficial to improve the structural compactness of the tripping mechanism.
  • the lock catch 5 is in contact with the pull rod driving part 71a after going through the first idle stroke, that is, the lock catch 5 is driven by the force from outside the pull rod 7a to the tripping direction.
  • the lock catch 5 When rotating, it first travels through the first idle stroke relative to the pull rod driving part 71a, and then contacts with the pull rod drive part 7a in a limited position and drives it to slide. Further, when the pull rod 7a is driven by an active force to slide, the pull rod 7a synchronously drives the locking member 5 to rotate in the release direction through the pull rod driving part 71a.
  • the first idle stroke is realized in the following manner: the pull rod driving part 71a is provided with a pull rod waist-shaped hole 710a, and the tripping mechanism also includes a hinge shaft 5-7a, which is connected to the hinge shaft 5-7a.
  • the buckle 5 is connected and inserted in the waist hole 710a of the tie rod.
  • the hinge shaft 5-7a moves in the waist hole 710a of the tie rod.
  • the waist-shaped hole 710a of the tie rod is arranged obliquely, and its upper end to the lower end are inclined in the direction where the bimetallic sheet 8a is located.
  • the left end of the pull rod waist hole 710a is in contact with the hinge shaft 5-7a, and when the pull rod 7a is driven to slide by the force, the pull rod 7a is driven by the pull rod at the beginning of sliding.
  • Part 71a and hinge shaft 5-7a drive the lock catch 5 to rotate in the tripping direction so that the lock catch 5 and jumper 4 release the snap fit;
  • the lock catch 5 first drives the hinge shaft 5-7 to move relative to the pull rod waist hole 700a, until the hinge shaft 5-7a contacts the right end of the pull rod waist hole 700a, the lock catch 5 continues to rotate, and the lock catch 5 can drive the pull rod 7 slides to the right, so that when the pull rod 7 is not working, the sliding due to the action of the lock catch 5 is reduced.
  • the hinged shaft 5-7a and the lock catch 5 are in an integrated structure.
  • the hinge shaft 5-7a and the lock catch 5 may also be of split structure.
  • the first idle stroke can also be realized in other ways: an open slot is set on the pull rod driving part 71a, that is, the bottom end of the open slot is in contact with the hinge shaft 5-7a, and the lock catch 5 is received by force from outside the pull rod 7a.
  • the hinged shaft 5-7a is driven to move to the opening end of the slot, so that the pull rod 7a is not moved during the entire moving process of the lock catch 5 .
  • the pull rod driving part 71a is connected to the hinge shaft 5-7a, and a waist-shaped hole is arranged on the lock buckle 5, and the hinge shaft 5-7a is in contact with one end of the waist-shaped hole close to the pull rod drive part 71a to move on the pull rod 7a.
  • the lock catch 5 is driven synchronously to rotate, when the lock catch 5 is rotated in the tripping direction by the force other than the pull rod 7a, the waist-shaped hole of the lock catch 5 moves relative to the hinge shaft 5-7a.
  • the pull rod driving part 71a there is a small fit gap between the pull rod driving part 71a and the lock member 5a.
  • the pull rod drive part 71a contacts with the lock catch 5 after passing through the fit gap. , and then drive the lock catch 5 to rotate in the tripping direction while the pull rod 7a slides.
  • the pull rod waist hole 710a of the pull rod driving part 71a first passes through the fitting gap relative to the hinge shaft 5-7a of the lock buckle 5, so that the pull rod The left end of the waist-shaped hole 710a is in contact with the hinge shaft 5-7a, and then the pull rod 7a continues to slide and synchronously drives the lock catch 5 to rotate in the release direction.
  • the circuit breaker of the present invention also includes a short-circuit protection structure that directly drives and cooperates with the lock catch 5.
  • the short-circuit protection structure is an instantaneous release that provides the lock catch 5 with a force from outside the pull rod 7a to make it rotate toward the tripping direction. Further, the instantaneous release is an electromagnetic release.
  • the tripping mechanism also includes a bimetallic strip 8a and/or a magnetic flux tripper
  • the pull rod 7a also includes a pull rod actuated part 73a, a bimetallic strip 8a and/or a magnetic flux tripper They respectively drive and cooperate with the pull rod receiving part 73a to drive the pull rod 7a to slide.
  • the tripping mechanism includes a bimetal strip 8a and a magnetic flux tripper at the same time; One active finger and the second active finger, the second active finger is close to the buckle 5 relative to the first active finger, and the double gold driving end 81a of the bimetal 8a is inserted between the two active fingers, and The first driven finger cooperates with the first driven finger, and a matching gap is set between the first driven finger, and the magnetic flux release cooperates with the second driven finger.
  • the pull rod 7a also includes a pull rod connecting portion 70a, the pull rod driving portion 71a, the pull rod connecting portion 70a and the pull rod receiving portion 73a are connected in sequence, the pull rod driving portion 73a is provided with a pull rod waist hole 710a, and the pull rod
  • the connecting portion 70a is provided with a pull rod sliding hole 700a, which is a waist-shaped hole and is sleeved on the pull rod sliding shaft 10-7 on the housing 1 for sliding fit.
  • tie rod driving part 71a is connected to one end of the tie rod connecting part 70a by bending
  • tie rod receiving part 73a is connected to the other end of the tie rod connecting part 70a by bending
  • the tie rod driving part 71a and the tie rod receiving part 73a are connected to the tie rod connecting part 70a is bent on both sides.
  • the pull rod receiving portion 73a is vertically connected to the pull rod connecting portion 70a.

Landscapes

  • Breakers (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

一种断路器，包括壳体、手柄、第一连杆、跳扣、锁扣、第二连杆、杠杆、动触头和静触头，所述跳扣和锁扣分别枢转安装在壳体上，所述跳扣设有滑槽和用于与锁扣的搭扣台搭扣配合的跳扣搭扣部；所述手柄枢转安装在壳体上，所述第一连杆的一端与手柄连接，第一连杆的另一端与第二连杆的一端铰接，所述第二连杆的另一端与杠杆连接，第一连杆和第二连杆的铰接端与所述跳扣的滑槽滑动配合；所述杠杆枢转安装在壳体上，所述动触头的一端安装在杠杆上，动触头的另一端与静触头相对应设置。本发明创造提供一种结构紧凑小巧、操作可靠性高的断路器。

Description

一种断路器 技术领域
本发明创造涉及低压电器技术领域，具体涉及一种断路器。
背景技术
随着经济的发展，小型化和智能化已成为低压电器元器件的发展趋势，期望电器产品能在尽量小的体积里具有多种功能，以实现不同的场合应用。操作机构是电器产品内部最基本的功能模块，在整个电器产品的结构布局中占有较大的空间比例，操作机构的小型化、紧凑化是实现电器产品小型化和智能化的一个主要方向。现有断路器产品大多采用四连杆操作机构，构件布局分散，有限空间被分割碎片化，不能得到有效的利用，限制了产品多功能发展。
小型断路器的过载系统，一般由双金属片受热弯曲驱动操作机构脱扣而断开电路，具体的：双金属片一端固定，另一端受热弯曲弯转并通过拉杆驱动操作机构的锁扣转动，使其解除与跳扣的搭扣配合；整个过载系统占用空间较大，造成断路器内部空间紧张。
发明内容
本发明创造的目的在于克服现有技术的缺陷，提供一种结构紧凑小巧、操作可靠性高的断路器。
为实现上述目的，本发明创造采用了如下技术方案：
一种断路器，包括壳体、手柄、第一连杆、跳扣、锁扣、第二连杆、杠杆、动触头和静触头，所述跳扣和锁扣分别枢转安装在壳体上，所述跳扣设有滑槽和用于与锁扣的搭扣台搭扣配合的跳扣搭扣部；所述手柄枢转安装在壳体上，所述第一连杆的一端与手柄连接，第一连杆的另一端与第二连杆的一端铰接，所述第二连杆的另一端与杠杆连接，第一连杆和第二连杆的铰接端与所述跳扣的滑槽滑动配合；所述杠杆枢转安装在壳体上，所述动触头的一端安装在杠杆上，动触头的另一端与静触头相对应设置。
优选地，所述手柄通过第一转轴转动安装，所述锁扣通过第三转轴转动安装，所述跳扣一端通过第二转轴转动安装，另一端的搭扣棱边与锁扣啮合配合，所述第一转轴、第三转轴和第二转轴位于一个钝角三角形的三个顶点处，其中所述第一转轴位于该钝角三角形的钝角顶点处。
优选地，所述跳扣一端转动安装，另一端设有与锁扣搭扣配合的跳扣搭扣部，所述滑槽设置在跳扣的转动轴心和跳扣搭扣部之间，所述锁扣一端转动安装，另一端设有用于触发脱扣的脱扣驱动部，且锁扣设有与跳扣的跳扣搭扣部滑动配合的滑动面，所述滑动面上设有与跳扣搭扣部搭扣配合的凸起的搭扣台。
优选地，所述锁扣与杠杆同转轴设置，所述杠杆通过其上的第三轴孔可转动地套在壳体的第三转轴上，在杠杆与壳体之间设有用于杠杆复位的杠杆弹性件，所述锁扣通过其上的第四轴孔可转动地套在壳体的第三转轴上，在锁扣与壳体之间设有用于锁扣复位的锁扣弹性件。
优选地，当断路器处于闭合状态时，所述跳扣的滑槽受第一连杆与第二连杆的铰接端的压力为F1，力臂为L1，所述跳扣的跳扣搭扣部受锁扣的搭扣台的正压力为F2，力臂为L2，其中，所述力臂L1与L2的长度比小于1/4。
优选地，所述跳扣包括依次相连的跳扣转动部、滑槽段和跳扣搭扣臂，所述跳扣转动部设有第二轴孔，所述滑槽段设有滑槽，所述跳扣搭扣臂的端部边角设有凸起的搭扣勾，所述跳扣搭扣臂的端面设有凸起的与锁扣滑动配合的滑动圆弧面，所述滑动圆弧面与所述搭扣勾相接处为可与锁扣的搭扣台扣合的搭扣棱边。
优选地，所述跳扣的转动轴心经过滑动圆弧面的圆心0到滑动圆弧面的连线为L3，跳扣的转动轴心到所述搭扣棱边的连线为L4，所述连线L3与L4之间具有角度a，a为锐角，且连线L3的长度大于连线L4的长度。
优选地，所述锁扣的一端设有第四轴孔，锁扣的另一端底面设有向下凸出的脱扣驱动部；所述锁扣的中部靠近第四轴孔位置的底面上设有向下凸出的锁扣凸部，锁扣凸部和脱扣驱动部之间形成避让第二连杆的避让槽，所述锁扣凸部上设有向侧方凸出的导向凸起作为与跳扣配合的滑动面，所述锁扣凸部的侧面上设有与跳扣搭扣配合的搭扣台，导向凸起与锁扣的底面间隔设置。
优选地，所述锁扣的底面上设有向下凸出的联动轴，所述锁扣的顶面在与联动轴相对应的位置上设有联动槽。
优选地，所述第二连杆包括两个连杆片和连接于两个连杆片之间的连接筋，所述两个连杆片之间具有卡接间隙，用于避让跳扣和或锁扣，所述两个连杆片的一端对齐设有用于与第一连杆铰接的第二铰接孔，两个连杆片的另一端对齐设有用于与杠杆铰接的第三铰接孔。
优选地，所述动触头枢转安装在杠杆上，所述动触头可转动地连接在杠杆上；且在动触头与杠杆的连接处设有第三扭簧，所述第三扭簧的一脚抵接在杠杆上，另一脚抵接在动触头上。
优选地，所述动触头设有止挡凸起，所述杠杆上设有与止挡凸起对应的止挡凸台。
优选地，所述杠杆包括杠杆板、设置在杠杆板上的支撑凸台，所述支撑凸台上设有用于动触头枢转安装的第四转轴；所述杠杆板的一角向外延伸形成延伸部，所述延伸部在与杠杆板连接处的一侧设有限位斜面，用于与壳体的限位圆柱相配合，另一侧设有用于与第二连杆铰接的第四铰接孔；所述延伸部的端部设有用于杠杆枢转安装的第三轴孔。
优选地，所述第一连杆为U型杆，U型杆的一端与手柄的第一铰接孔铰接，U型杆的另一端与第二连杆的第二铰接孔铰接，并插入所述跳扣的滑槽内。
优选的，所述锁扣受外力驱动而向脱扣方向转动以解除与跳扣的搭扣配合，使断路器的操作机构脱扣；所述断路器还包括滑动设置的拉杆，拉杆包括与锁扣驱动配合的拉杆驱动部，拉杆受作用力驱动而滑动时，拉杆通过拉杆驱动部驱动锁扣向脱扣方向转动；所述锁扣和拉杆驱动部之间设置第一空行程，锁扣5受来自拉杆之外的作用力驱动而向脱扣方向转动时，锁扣首先相对于拉杆驱动部走过第一空行程。
优选的，所述锁扣相对于拉杆驱动部走过第一空行程后与其接触。
优选的，所述拉杆驱动部设有拉杆腰型孔，断路器还包括铰接轴，铰接轴与锁扣相连且插置在拉杆腰型孔内，锁扣相对于拉杆驱动部走过第一空行程时，铰接轴在拉杆腰型孔内移动。
优选的，所述拉杆还包括拉杆连接部和拉杆受动部，拉杆受动部、拉杆连接部和拉杆受动部依次相连，拉杆连接部设有拉杆滑动孔，拉杆滑动孔为腰形孔且套设在壳体上的拉杆滑动轴上；所述断路器还包括双金属片和/或磁通脱扣器，双金属片和/或磁通脱扣器与拉杆受动部驱动配合以驱动拉杆滑动。
本发明创造的断路器，结构紧凑小巧，占用空间集中、比例小，操作机构充分利用内部有限空间，能在产品内部有限空间集成更多的功能模块，实现产品更多的使用功能。
此外，所述第一空行程消除或减小了拉杆在不工作时的移动距离(也即是受锁扣驱动而移动的距离)，从而减小了拉杆所需的安装和工作空间，有利于提高脱扣机构的结构紧凑性。
附图说明
图1是本发明创造断路器处于断开状态时的立体图；
图2是本发明创造断路器处于断开状态时的正视图；
图3是本发明创造断路器触头断开位置时跳扣与锁扣分离的局部结构解剖图；
图4是本发明创造断路器处于闭合状态时的立体图；
图5是本发明创造断路器处于闭合状态时的正视图；
图6是本发明创造断路器触头闭合位置时跳扣与锁扣扣合的局部结构解剖图；
图7是本发明创造断路器处于脱扣过程状态一的局部结构解剖图；
图8是本发明创造断路器处于脱扣过程状态二的局部结构解剖图；
图9是本发明创造断路器处于脱扣过程状态三的局部结构解剖图；
图10是本发明创造断路器处于脱扣过程状态三的立体图；
图11是本发明创造壳体的底座结构示意图；
图12是本发明创造手柄的结构示意图；
图13是本发明创造跳扣的立体图；
图14是本发明创造跳扣的正视图；
图15是本发明创造锁扣的正面立体图；
图16是本发明创造锁扣的反面立体图；
图17是本发明创造连杆的立体图；
图18是本发明创造杠杆的立体图；
图19是本发明创造动触头的结构示意图；
图20是本发明创造断路器处于闭合状态时的投影视图；
图21是本发明创造锁扣、拉杆和双金属片的配合关系图；
图22是本发明创造拉杆的立体图。
具体实施方式
以下结合附图1至22给出的实施例，进一步说明本发明创造的断路器的具体实施方式。本发明创造的断路器不限于以下实施例的描述。
如图1-10、20所示，本发明创造的断路器包括壳体1、操作机构、动触头8和静触头9和脱扣器101。所述操作机构包括手柄2、第一连杆3、跳扣4、锁扣5、第二连杆7和杠杆6，所述跳扣4和锁扣5分别枢转安装在壳体1的底座底板上，所述锁扣5设有与脱扣器101对应的脱扣驱动部56，所述跳扣4设有滑槽42和用于与锁扣5的搭扣台53扣合的跳扣搭扣部，本实施例中所述跳扣搭扣部为用于与锁扣5的搭扣台53扣合的搭扣棱边43。所述手柄2枢转安装在壳体1的底座底板上，所述第一连杆3的一端与手柄2连接，第一连杆3的另一端与第二连杆7的一端铰接，所述第二连杆7的另一端与杠杆6连接，第一连杆3和第二连杆7铰接端插入所述跳扣4的滑槽42内，沿滑槽42滑动配合；所述杠杆6枢转安装在壳体1上，所述动触头8的一端安装在杠杆6上，动触头8的另一端与静触头9相对应设置。本发明创造的断路器，由具有滑槽42的跳扣4与壳体1、手柄2、第一连杆3、第二连杆7、杠杆6构成的凸轮-五连杆机构。其中由壳体1、手柄2、第一连杆3、第二连杆7、杠杆6构成的五连杆机构具有两个自由度，再将第一连杆3的一端与第二连杆7的铰接端限制在固定的滑槽42构成的凸轮上运动，从而限制了一个自由度，这样就构成具有一个自由度的凸轮-五连杆传动机构。由跳扣与锁扣所组成的脱扣机构与传动机构是基本分开独立的机构，使得操作机构在正常闭合、断开操作时，脱扣机构基本处于静止状态，大大提高了整个机构的操作可靠性。
优选的，本实施例的所述手柄2通过第一转轴12转动安装，所述锁扣5通过第三转轴14转动安装，所述跳扣4一端通过第二转轴11转动安装，另一端的搭扣棱边43与锁扣5搭扣配合，所述第一转轴12、第三转轴14和第二转轴11位于一个钝角三角形的三个顶点处，其中所述第一转轴12位于该钝角三角形的钝角顶点处。所述杠杆6通过第三转轴14转动安装，以所述杠杆6和第二连杆7的铰接端作为活动顶点、以第一转轴12、第二转轴11和第三转轴14作为固定顶点构成活动四边形，其中所述第一转轴12、第三转轴14位于该活动四边形的共同一边的两个钝角顶点处，所述杠杆6和第二连杆7的铰接端、第二转轴11位于该活动四边形的共同一边的两个锐角顶点处。需要说明的是，本实施例的钝角特征、锐角特征、三角形，以及三角形各顶点的顺序，均只是一种实施例，不能够代表所有其他实施例，不能限制本案最大的保护范围。所述钝角三角形和活动四边形并无实际连线，仅为方便描述手柄 2、跳扣4、锁扣5、杠杆6和第二连杆7之间的相对位置而假定的形状。具体地，如图1-10所示，所述跳扣4的一端转动安装在手柄2的一侧下方，位于手柄2与脱扣器101之间，所述锁扣5和杠杆6转动安装在手柄2的另一侧侧方，跳扣4的另一端基本水平从手柄2的下方延伸到手柄2的另一侧与锁扣5搭扣配合，所述第二连杆7基本水平设置在手柄2的下方，位于手柄2与脱扣器101之间，第二连杆7一端与第一连杆3铰接且沿滑槽42滑动，另一端与杠杆6连接，通过将跳扣4和锁扣5分别设置在手柄2的两侧，不仅充分利用手柄2与脱扣器101之间的空间，而且能有效扩大脱扣力的力臂L2，本发明创造的断路器，结构紧凑小巧，布局合理，占用空间集中、比例小，操作机构充分利用内部有限空间，能在产品内部有限空间集成更多的功能模块，实现产品更多的使用功能。
优选的，当断路器处于闭合状态时，所述跳扣的滑槽受第一连杆与第二连杆的铰接端的压力为F1，力臂为L1，所述跳扣的跳扣搭扣部受锁扣的搭扣台的正压力为F2，力臂为L2，其中，所述力臂L1与L2的长度比小于1/4。优选的，其中力臂L1与L2的长度比小于1/6。
本实施例的脱扣器101为电磁脱扣器，在断路器短路时可以触发锁扣5，解除锁扣5和跳扣4的搭扣配合，使断路器脱扣分断，实现电路保护。所述脱扣器101与静触头9连接，在脱扣器101的下方还可以设置灭弧室，在断路器的两侧还分别设有接线端子，静触头9位于灭弧室的入口侧上方。当然，所述脱扣器101也可以为漏电脱扣器或者过载脱扣器，根据需要所述断路器内也可以设置电磁脱扣器、漏电脱扣器或者过载脱扣器，在断路器出现故障时用于驱动锁扣5，此为本领域的现有技术，不再赘述。
如图11所示，本发明创造的壳体1包括可匹配扣合的上盖(图中未显示)和底座，壳体1的底座底板上设有用于手柄2枢转安装的第一转轴12、用于跳扣4枢转安装的第二转轴11、用于杠杆6和锁扣5枢转安装的第三转轴14、第一抵挡凸台13、限位圆柱15。本实施例，所述锁扣5和杠杆6同轴转动安装在第三转轴14上，且层叠设置，节省空间；当然，锁扣5和杠杆6的转轴轴心也可以不同。
如图12所示，本发明创造的手柄2包括一体连接的手持部21和转动部22，所述手柄2一端的手持部21伸出壳体1外，可供扳动操作，另一端的转动部22上设有用于枢转安装在壳体1上的第一轴孔23、用于与第一连杆3铰接的第一铰接孔24。手柄2通过其转动部22上的第一轴孔23可转动地套在壳体1的第一转轴12上。在手柄2与壳体1枢转连接处装有用于手柄2复位的第四扭簧，所述第四扭簧的一脚抵接在壳体1上，另一脚抵接在手柄2上。所述手柄2转动行程的两端与壳体1的操作止位件配合，对手柄2的行程两端进行限位。如图2所示，断路器处于断开状态下，所述手柄2的手持部21则被左端的壳体1操作止位件所抵挡；如图5所示，断路器处于闭合状态下，所述手柄2的手持部21则被右端的壳体1操作止位件所抵挡。
本实施例的所述第一连杆3为U型杆，所述第一连杆3为U型杆，U型杆的一端与手柄2的第一铰接孔24铰接，U型杆的另一端与第二连杆7的第二铰接孔71铰接，并插入所述跳扣4的滑槽42内，直接以U型杆与第二连杆7连接的一端作为插入滑槽42内的铰接轴，结构简单便于装配。
如图13-14所示，本发明创造的跳扣4为一体成型结构，包括依次相连的跳扣转动部401、滑槽段402和跳扣搭扣臂403，跳扣转动部401成圆柱状，滑槽段402成方形块状，跳扣搭扣臂403成L形块状，滑槽段402和跳扣搭扣臂403之间弯折连接，跳扣搭扣臂则向远离手柄2的下方略微倾斜，其中滑槽段402和跳扣搭扣臂403能够与第二连杆7的卡接间隙75相配合，滑槽段402与跳扣搭扣臂403的顶底面平齐设置，所述跳扣转动部401凸出于滑槽段402的顶面，跳扣转动部401上设有避让第二连杆7的缺口；所述跳扣转动部401设有第二轴孔41，跳扣4通过其上的第二轴孔41可转动地套在壳体1的第二转轴11上；所述滑槽段402设有滑槽42，优选地，滑槽42为长条形的腰型孔，所述滑槽42为从跳扣4的转动轴心向靠近手柄2的上方略微倾斜的直线滑槽。优选的，所述L形块状的跳扣搭扣臂403的转角外侧设有凸起的搭扣勾，所述跳扣搭扣臂403的端面设有凸起的与锁扣5滑动配合的滑动圆弧面44，所述滑动圆弧面44与所述搭扣勾相接处为可与锁扣5的搭扣台53扣合的搭扣棱边 43。
如图14所示，搭扣棱边43所在滑动圆弧面44的圆心0与跳扣4的转动轴心连线与滑动圆弧面44相交的点，为搭扣棱边43所在滑动圆弧面44离跳扣4的转动轴心最远的位置，且位于搭扣勾上方，形成凸轮。即跳扣4的转动轴心经过所述搭扣棱边43所在的滑动圆弧面44的圆心0到滑动圆弧面44的连线为L3，跳扣4的转动轴心到所述搭扣棱边43的连线为L4，所述连线L3与L4之间具有角度a，a为锐角且角度较小，在L3和L4长度不变的条件下，角度a越小，锁扣5转动越快，且连线L3的长度大于连线L4的长度。
如图7所示，当跳扣4与锁扣5脱扣后，操作机构转换为壳体1、手柄2、第一连杆3、第二连杆7、杠杆6构成的五连杆机构(不包括跳扣4)，该五连杆机构具有两个自由度，杠杆6在第一扭簧102的作用下逆时针方向转动，进而带动第二连杆7、第一连杆3运动，跳扣4受第二连杆7拉动绕第二转轴11快速转动，如图8所示，跳扣4的滑动圆弧面44沿锁扣5的作为滑动面的导向凸起54(图16)相切滑动，推动锁扣5转动，锁扣5转动角度由跳扣4的连线L3与连线L4的差值所决定，与连线L3与连线L4的差值成正比。如图9-10所示，当手柄2的第一轴孔23和第一铰接孔24的连线与第一连杆3主体所在直线转至成直线时，跳扣4转过最大角度，此时跳扣4的尖点特征45不能超出锁扣5导向凸起54所在的面，以免锁扣5卡住跳扣4而使跳扣4不能复位。当杠杆6运动至断开状态时，即杠杆6的限位斜面64与壳体1的限位圆柱15相抵，此时杠杆6受壳体1的限位圆柱15支持处于静止状态，手柄2、第一连杆3、第二连杆7、壳体1构成四连杆机构，手柄2在第四扭簧的作用下逆时针转动，进而带动第一连杆3、第二连杆7运动，第一连杆3通过跳扣4的滑槽42带动跳扣4逆时针转动，当手柄2转至断开位置时，跳扣4的滑动圆弧面44沿锁扣5的导向凸起54回位，此时跳扣4的搭扣棱边43处于锁扣5的搭扣台53的上侧，为脱扣机构的再扣做好准备。
如图15-16所示，本发明创造的锁扣5的一端设有第四轴孔51，所述锁扣5通过其上的第四轴孔51可转动地套在壳体1的第三转轴14上，锁扣5的另一端底面设有向下凸出的脱扣驱动部56，与断路器的脱扣器101的顶针相对应设置，位于脱扣器101的侧方；所述锁扣5的中部靠近第四轴孔51位置的底面上设有向下凸出的锁扣凸部50，锁扣凸部50和脱扣驱动部56之间形成避让第二连杆7的避让槽，所述锁扣凸部50上设有向下凸出的联动轴52、向侧方凸出的导向凸起54作为与跳扣4配合的滑动面，所述锁扣凸部50的侧面上设有搭扣台53，可与跳扣4的搭扣棱边43扣合，导向凸起54与锁扣5的底面间隔设置，以不避让第二连杆7，导向凸起54能够伸到第二连杆7的卡接间隙75内，所述锁扣5的顶面在与联动轴52相对应的位置上设有联动槽55。锁扣5的一面设置联动轴52，可插接在邻接断路器的联动槽55内，锁扣5的另一面设置联动槽55，可内插有另一邻接断路器的联动轴52，锁扣5可通过其上的联动轴52、联动槽55分别与邻接两个断路器的操作机构联动，脱扣机构脱扣时，锁扣5受跳扣4推动转动一定角度，通过联动轴52或联动槽55带动邻接断路器的操作机构脱扣，从而实现断路器极间联动。当然，所述锁扣5上也可以只设有用于与邻接断路器的操作机构插接的联动轴52或联动槽55。
如图17所示，本发明创造的第二连杆7，包括两个连杆片73和连接于两个连杆片73之间的两个连接筋74，所述两个连接筋74相间隔并位于两个连杆片73的同一侧，所述两个连杆片73之间具有卡接间隙75，用于避让跳扣4和或锁扣5和或杠杆6，所述两个连杆片73的一端对齐设有用于与第一连杆3铰接的第二铰接孔71，两个连杆片73的另一端对齐设有用于与杠杆6铰接的第三铰接孔72。跳扣4的滑槽段402卡入第二连杆7的卡接间隙75内时第二连杆7的第二铰接孔71与跳扣4的滑槽42正对，第一连杆3的一端可同时穿过跳扣4的滑槽42和第二连杆7一端的两个第二铰接孔71。第二连杆7采用两个连杆片73形成卡接间隙75，用于避让和连接跳扣4和杠杆6，不经连接可靠，而且占用空间小。
如图18所示，本发明创造的杠杆6包括杠杆板60、设置在杠杆板60上的连接凸筋600、支撑凸台68、止挡凸台66和第三抵挡凸台65，所述连接凸筋600沿杠杆板60的边缘设置，位于所述止挡凸台66与第三抵挡凸台65之间，所述支撑凸台68上设有用于动触头8枢转安 装的第四转轴67，所述支撑凸台68与止挡凸台66和连接凸筋600相连接，并低于止挡凸台66和连接凸筋600从而形成用于避让动触头8的避让空间，所述动触头8的一端通过其上的第五轴孔82可转动地套在杠杆6的第四转轴67上，并落在支撑凸台68上；所述第三抵挡凸台65设置于杠杆板60上一角，且杠杆板60的该角向外延伸形成延伸部601，所述延伸部601在与杠杆板60连接处的一侧设有限位斜面64，与壳体1的限位圆柱15相配合，另一侧设有圆形的卡接部602，与所述第二连杆7的卡接间隙75相配合，所述卡接部602上设有第四铰接孔63，用于与第二连杆7连接；所述延伸部601的中部底面上设有第二抵挡凸台62，用于抵接第一扭簧102的一脚，所述延伸部601的端部设有用于杠杆6枢转安装的第三轴孔61，与壳体1的第三转轴14相配合。杠杆6的限位斜面64与壳体1的限位圆柱15接触，动触头8和静触头9处于分开位置，以定位和限位在断路器断开或脱扣状态下杠杆6的位置终点。第一连杆3的一端与手柄2的第一铰接孔24铰接，第一连杆3的另一端与第二连杆7的第二铰接孔71铰接，并插入所述跳扣4的滑槽42内；杠杆6的卡接部602卡入第二连杆7的卡接间隙75内，第二连杆7的第三铰接孔72与杠杆6的第四铰接孔63对齐，可通过插入销钉实现第二连杆7与杠杆6铰接。
如图1-10所示，所述锁扣5的一端枢转安装在壳体1上位于手柄2的侧方，另一端位于脱扣器101的侧方，所述杠杆6的一端枢转安装在壳体1上位于手柄2的侧方，杠杆6的另一端位于脱扣器101的侧方。优选的，所述锁扣5层叠在杠杆6上，并与杠杆6同转轴设置，所述杠杆6通过其上的第三轴孔61可转动地套在壳体1的第三转轴14上，在杠杆6与壳体1之间设有用于杠杆6复位的杠杆弹性件，所述锁扣5通过其上的第四轴孔51可转动地套在壳体1的第三转轴14上，在锁扣5与壳体1之间设有用于锁扣5复位的锁扣弹性件。具体地，所述杠杆弹性件为第一扭簧102，在杠杆6与壳体1枢转连接处装有用于杠杆6复位的第一扭簧102，所述第一扭簧102的一脚抵接在壳体1的第一抵挡凸台13上，另一脚抵接在杠杆6的第二抵挡凸台62上；所述锁扣弹性件为第二扭簧103，在锁扣5与壳体1枢转连接处装有用于锁扣5复位的第二扭簧103，所述第二扭簧103的一脚抵接在壳体1上，另一脚抵接在锁扣5上。由跳扣4与锁扣5所组成的脱扣机构在操作机构正常闭合、断开操作时，脱扣机构处于静止状态，当电路故障电流触发脱扣器101动作时，脱扣器101驱动锁扣5逆时针转动，搭扣棱边43与搭扣台53分离，锁扣5绕第三转轴14转动，凸轮-五连杆机构转变为六连杆机构，六连杆机构具有两个自由度，杠杆6在第一扭簧102的驱动下恢复到断开位置。
如图1-10所示，本发明创造的动触头8枢转安装在杠杆6上，动触头8与杠杆6之间设有超程弹性件，所述动触头8通过其上的第五轴孔82可转动地套在杠杆6的第四转轴67上；所述超程弹性件为第三扭簧104，在动触头8与杠杆6枢转连接处设有第三扭簧104，所述第三扭簧104的一脚抵接在杠杆6的第三抵挡凸台65上，另一脚抵接在动触头8一侧的抵挡侧边83上。如图19所示，所述动触头8的另一侧设有止挡凸起81，所述杠杆6上设有与止挡凸起81对应的止挡凸台66。进一步地，如图19所示，所述动触头8的侧边设有凸起的接触弧面84，可与静触头9接触连接。动触头8的止挡凸起81与止挡凸台66接触，当动触头8与静触头9处于断开状态时，第三扭簧104对动触头8和杠杆6施加一个初压力，动触头8与杠杆6形成一个整体运动，当动触头8与静触头9接触后，动触头8绕第四转轴67相对杠杆6转动一定角度，止挡凸起81与止挡凸台66分离，第三扭簧104对动触头施加一个终压力，保证动触头8与静触头9的可靠接触。动触头8与杠杆6之间存在压力扭簧，保证动静触头之间可靠接触；杠杆6、动触头8、静触头9构成一个摇杆滑块机构，接触弧面84沿静触头9表面滑动摩擦，可有效的去除动静触头表面的氧化膜，提高动静触头间的导电性。
如图2-3所示，当断路器处于断开状态时，手柄2的手持部21摆动至左侧与壳体1接触，第一连杆3与手柄2连接的一端位于手柄2的转动轴心右侧，第一连杆3与第二连杆7连接的一端滑动到滑槽42远离跳扣4的转动轴心的一端，跳扣4的搭扣棱边43与锁扣5的搭扣台53扣合，杠杆6的限位斜面64(图18)与壳体1的限位圆柱15接触，动触头8和静触头9处于分开位置。当断路器处于闭合状态时，如图5-6所示，手柄2的手持部21摆动至右侧与壳体1接触，第一连杆3与手柄2连接的一端摆动到手柄2的转动轴心左侧，第一连杆3与 第二连杆7连接的一端向左侧滑动到滑槽42远离跳扣4的转动轴心的一端，使第二连杆7拉动杠杆6，杠杆6带动动触头8向左侧摆动，与静触头9接触，第一连杆3与手柄2呈一定闭合角，动触头8和静触头9处于闭合状态。当断路器故障如出现短路时，脱扣器101的顶针撞击锁扣5的脱扣驱动部56，使锁扣5逆时针转动，解除跳扣4和锁扣5的搭扣配合，杠杆6带动动触头向右侧摆动，与静触头分离，跳扣4顺时针转动，第一连杆3和第二连杆7的铰接轴沿滑槽42向右侧滑动。
如图20-21所示，本发明创造断路器，其锁扣5受外力驱动而向脱扣方向转动以解除与跳扣4的搭扣配合，使操作机构脱扣；本发明创造断路器还包括脱扣机构，脱扣机构包括滑动设置的拉杆7a，拉杆7a包括与锁扣5驱动配合的拉杆驱动部71a，拉杆7a包括与锁扣5驱动配合的拉杆驱动部71a，拉杆7a受作用力驱动而滑动时，拉杆7a通过拉杆驱动部71a驱动锁扣5向脱扣方向转动；所述锁扣5和拉杆驱动部71a之间设置第一空行程，锁扣5受来自拉杆7a之外的作用力驱动而向脱扣方向转动时，锁扣5首先相对于拉杆驱动部71a走过第一空行程。所述第一空行程，消除或减小了在拉杆7不工作时的移动距离(也即是受锁扣5驱动而移动的距离)，从而减小了拉杆7所需的安装和工作空间，有利于提高脱扣机构的结构紧凑性。
结合图20-21所示，所述锁扣5相对于拉杆驱动部71a走过第一空行程后与其接触，也即是锁扣5受到来自拉杆7a之外的作用力驱动而向脱扣方向转动时，首先相对于拉杆驱动部71a走过第一空行程，然后与拉杆驱动部7a限位接触并驱动其滑动。进一步的，所述拉杆7a受作用力驱动而滑动时，拉杆7a通过拉杆驱动部71a同步驱动锁扣件5向脱扣方向转动。
如图20-21所示，所述第一空行程通过以下方式实现：所述拉杆驱动部71a设有拉杆腰型孔710a，脱扣机构还包括铰接轴5-7a，铰接轴5-7a与锁扣5相连且插置在拉杆腰型孔710a内，锁扣5相对于拉杆驱动部71a走过第一空行程时，铰接轴5-7a在连杆腰型孔710a内移动。进一步的，所述拉杆腰型孔710a倾斜设置，其上端至下端向双金属片8a所在方向倾斜。
具体的，如图21-22所示方向，所述拉杆腰型孔710a左端与铰接轴5-7a接触配合，拉杆7a受作用力驱动而滑动时，拉杆7a在滑动伊始，即同时通过拉杆驱动部71a、铰接轴5-7a驱动锁扣5向脱扣方向转动以使锁扣5和跳扣4解除搭扣配合；所述锁扣5受到来自拉杆7a以外的作用力驱动而向脱扣方向转动时，锁扣5首先带动铰接轴5-7相对于拉杆腰型孔700a移动，直至铰接轴5-7a与拉杆腰型孔700a的右端接触，锁扣5继续转动，锁扣5才能驱动拉杆7向右滑动，从而在拉杆7不工作时，减少因锁扣5动作而滑动。
本实施例脱扣机构中，所述铰接轴5-7a和锁扣5为一体式结构。
作为其它实施例，所述铰接轴5-7a和锁扣5也可以是分体式结构。
所述第一空行程还可以采用其他方式实现：所述拉杆驱动部71a上设置开口槽，也即是开口槽的底端与铰接轴5-7a接触，锁扣5受来自拉杆7a之外的作用力而向脱扣方向转动时，带动铰接轴5-7a向开口槽的开口端移动，可以实现在锁扣5的整个移动过程中，不使拉杆7a移动。或者，所述拉杆驱动部71a连接铰接轴5-7a，而在锁扣5上设置腰型孔，铰接轴5-7a与腰型孔的靠近拉杆驱动部71a的一端接触，以在拉杆7a移动时同步驱动锁扣5转动，锁扣5受来自拉杆7a以外的作用力而向脱扣方向转动时，锁扣5的腰型孔则相对于铰接轴5-7a移动。还有其他多种实现方式，在此不再一一展开描述。
作为其它实施例，所述拉杆驱动部71a与锁扣件5a之间具有微小的配合间隙，拉杆7a受作用力驱动而滑动时，拉杆驱动部71a相对于锁扣5走过配合间隙后与其接触，然后在拉杆7a滑动同时驱动锁扣5向脱扣方向转动。具体的，如图21所示，所述拉杆7a受作用力驱动而滑动时，拉杆驱动部71a的拉杆腰型孔710a首先相对于锁扣5的铰接轴5-7a走过配合间隙，使拉杆腰型孔710a的左端与铰接轴5-7a接触，然后拉杆7a继续滑动并同步驱动锁扣5向脱扣方向转动。
本发明创造断路器还包括直接与锁扣5驱动配合的短路保护结构，短路保护结构为瞬时脱扣器，为锁扣5提供来自拉杆7a之外的作用力使其向脱扣方向转动。进一步的，所述瞬时脱扣器为电磁脱扣器。
如图20-21所示，所述脱扣机构还包括双金属片8a和/或磁通脱扣器，拉杆7a还包括拉杆受动部73a，双金属片8a和/或磁通脱扣器分别与拉杆受动部73a驱动配合以驱动拉杆7a滑动。具体的，如图20-21所示，所述脱扣机构同时包括双金属片8a和磁通脱扣器；所述拉杆受动部73a包括相对间隔设置的两个受动指，分别为第一受动指和第二受动指，第二受动指相对于第一受动指靠近锁扣5，双金属片8a的双金驱动端81a插置在两个受动指之间，与第一受动指配合且与第一受动指之间设置配合间隙，磁通脱扣器与第二受动指配合。
如图20-22所示，所述拉杆7a还包括拉杆连接部70a，拉杆驱动部71a、拉杆连接部70a和拉杆受动部73a依次相连，拉杆驱动部73a设有拉杆腰型孔710a，拉杆连接部70a设有拉杆滑动孔700a，拉杆滑动孔700a为腰型孔且套设在壳体1上的拉杆滑动轴10-7上滑动配合。进一步的，所述拉杆驱动部71a和拉杆连接部70a一端折弯相连，拉杆受动部73a与拉杆连接部70a另一端折弯相连，拉杆驱动部71a和拉杆受动部73a分别向拉杆连接部70a两侧折弯。进一步的，所述拉杆受动部73a与拉杆连接部70a垂直连接。
以上内容是结合具体的优选实施方式对本发明创造所作的进一步详细说明，不能认定本发明创造的具体实施只局限于这些说明。对于本发明创造所属技术领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明创造的保护范围。

Claims (15)

  1. 一种断路器，包括壳体(1)、手柄(2)、第一连杆(3)、跳扣(4)、锁扣(5)、第二连杆(7)、杠杆(6)、动触头(8)和静触头(9)，其特征在于：所述跳扣(4)和锁扣(5)分别枢转安装在壳体(1)上，所述跳扣(4)设有滑槽(42)和用于与锁扣(5)的搭扣台(53)搭扣配合的跳扣搭扣部；所述手柄(2)枢转安装在壳体(1)上，所述第一连杆(3)的一端与手柄(2)连接，第一连杆(3)的另一端与第二连杆(7)的一端铰接，所述第二连杆(7)的另一端与杠杆(6)连接，第一连杆(3)和第二连杆(7)的铰接端与所述跳扣(4)的滑槽(42)滑动配合；所述杠杆(6)枢转安装在壳体(1)上，所述动触头(8)的一端安装在杠杆(6)上，动触头(8)的另一端与静触头(9)相对应设置。
  2. 根据权利要求1所述的断路器，其特征在于：所述手柄(2)通过第一转轴(12)转动安装，所述锁扣(5)通过第三转轴(14)转动安装，所述跳扣(4)一端通过第二转轴(11)转动安装，另一端的搭扣棱边(43)与锁扣(5)啮合配合，所述第一转轴(12)、第三转轴(14)和第二转轴(11)位于一个钝角三角形的三个顶点处，其中所述第一转轴(12)位于该钝角三角形的钝角顶点处。
  3. 根据权利要求1所述的断路器，其特征在于：所述跳扣(4)一端转动安装，另一端设有与锁扣(5)搭扣配合的跳扣搭扣部，所述滑槽(42)设置在跳扣(4)的转动轴心和跳扣搭扣部之间，所述锁扣(5)一端转动安装，另一端设有用于触发脱扣的脱扣驱动部(56)，且锁扣(5)设有与跳扣(4)的跳扣搭扣部滑动配合的滑动面，所述滑动面上设有与跳扣搭扣部搭扣配合的凸起的搭扣台(53)。
  4. 根据权利要求1所述的断路器，其特征在于：所述锁扣(5)与杠杆(6)同转轴设置，所述杠杆(6)通过其上的第三轴孔(61)可转动地套在壳体(1)的第三转轴(14)上，在杠杆(6)与壳体(1)之间设有用于杠杆(6)复位的杠杆弹性件，所述锁扣(5)通过其上的第四轴孔(51)可转动地套在壳体(1)的第三转轴(14)上，在锁扣(5)与壳体(1)之间设有用于锁扣(5)复位的锁扣弹性件。
  5. 根据权利要求1所述的断路器，其特征在于：当断路器处于闭合状态时，所述跳扣(4)的滑槽(42)受第一连杆(3)与第二连杆(7)的铰接端的压力为F1，力臂为L1，所述跳扣(4)的跳扣搭扣部受锁扣(5)的搭扣台(53)的正压力为F2，力臂为L2，其中，所述力臂L1与L2的长度比小于1/4。
  6. 根据权利要求3所述的断路器，其特征在于：所述跳扣(4)包括依次相连的跳扣转动部(401)、滑槽段(402)和跳扣搭扣臂(403)，所述跳扣转动部(401)设有第二轴孔(41)，所述滑槽段(402)设有滑槽(42)，所述跳扣搭扣臂(403)的端部边角设有凸起的搭扣勾，所述跳扣搭扣臂(403)的端面设有凸起的与锁扣(5)滑动配合的滑动圆弧面(44)，所述滑动圆弧面(44)与所述搭扣勾相接处为可与锁扣(5)的搭扣台(53)扣合的搭扣棱边(43)。
  7. 根据权利要求6所述的断路器，其特征在于：所述跳扣(4)的转动轴心经过滑动圆弧面(44)的圆心0到滑动圆弧面(44)的连线为L3，跳扣(4)的转动轴心到所述搭扣棱边(43)的连线为L4，所述连线L3与L4之间具有角度α，α为锐角，且连线L3的长度大于连线L4的长度。
  8. 根据权利要求3所述的断路器，其特征在于：所述锁扣(5)的一端设有第四轴孔(51)，锁扣(5)的另一端底面设有向下凸出的脱扣驱动部(56)；所述锁扣(5)的中部靠近第四轴孔(51)位置的底面上设有向下凸出的锁扣凸部(50)，锁扣凸部(50)和脱扣驱动部(56)之间形成避让第二连杆(7)的避让槽，所述锁扣凸部(50)上设有向侧方凸出的导向凸起(54)作为与跳扣(4)配合的滑动面，所述锁扣凸部(50)的侧面上设有与跳扣(4)搭扣配合的搭扣台(53)，导向凸起(54)与锁扣(5)的底面间隔设置。
  9. 根据权利要求1-8任一所述的断路器，其特征在于：所述第二连杆(7)包括两个连杆片(73)和连接于两个连杆片(73)之间的连接筋(74)，所述两个连杆片(73)之间具有卡 接间隙(75)，用于避让跳扣(4)和或锁扣(5)，所述两个连杆片(73)的一端对齐设有用于与第一连杆(3)铰接的第二铰接孔(71)，两个连杆片(73)的另一端对齐设有用于与杠杆(6)铰接的第三铰接孔(72)；
    所述第一连杆(3)为U型杆，U型杆的一端与手柄(2)的第一铰接孔(24)铰接，U型杆的另一端与第二连杆(7)的第二铰接孔(71)铰接，并插入所述跳扣(4)的滑槽(42)内。
  10. 根据权利要求1-8任一所述的断路器，其特征在于：所述锁扣(5)的底面上设有向下凸出的联动轴(52)，所述锁扣(5)的顶面在与联动轴(52)相对应的位置上设有联动槽(55)；
    所述动触头(8)枢转安装在杠杆(6)上，所述动触头(8)可转动地连接在杠杆(6)上；且在动触头(8)与杠杆(6)的连接处设有第三扭簧(104)，所述第三扭簧(104)的一脚抵接在杠杆(6)上，另一脚抵接在动触头(8)上；
    所述动触头(8)设有止挡凸起(81)，所述杠杆(6)上设有与止挡凸起(81)对应的止挡凸台(66)。
  11. 根据权利要求1-8任一所述的断路器，其特征在于：所述杠杆(6)包括杠杆板(60)、设置在杠杆板(60)上的支撑凸台(68)，所述支撑凸台(68)上设有用于动触头(8)枢转安装的第四转轴(67)；所述杠杆板(60)的一角向外延伸形成延伸部(601)，所述延伸部(601)在与杠杆板(60)连接处的一侧设有限位斜面(64)，用于与壳体(1)的限位圆柱(15)相配合，另一侧设有用于与第二连杆(7)铰接的第四铰接孔(63)；所述延伸部(601)的端部设有用于杠杆(6)枢转安装的第三轴孔(61)。
  12. 根据权利要求1-8任一所述的断路器，其特征在于：所述锁扣(5)受外力驱动而向脱扣方向转动以解除与跳扣(4)的搭扣配合，使断路器的操作机构脱扣；所述断路器还包括脱扣机构，脱扣机构包括滑动设置的拉杆(7a)，拉杆(7a)包括与锁扣(5)驱动配合的拉杆驱动部(71a)，拉杆(7a)受作用力驱动而滑动时，拉杆(7a)通过拉杆驱动部(71a)驱动锁扣(5)向脱扣方向转动；所述锁扣(5)和拉杆驱动部(71a)之间设置第一空行程，锁扣(5)受来自拉杆(7a)之外的作用力驱动而向脱扣方向转动时，锁扣(5)首先相对于拉杆驱动部(71a)走过第一空行程。
  13. 根据权利要求12所述的断路器，其特征在于：所述锁扣(5)相对于拉杆驱动部(71a)走过第一空行程后与其接触。
  14. 根据权利要求12所述的断路器，其特征在于：所述拉杆驱动部(71a)设有拉杆腰型孔(710a)，脱扣机构还包括铰接轴(5-7a)，铰接轴(5-7a)与锁扣(5)相连且插置在拉杆腰型孔(710a)内，锁扣(5)相对于拉杆驱动部(71a)走过第一空行程时，铰接轴(5-7a)在拉杆腰型孔(710a)内移动。
  15. 根据权利要求12所述的断路器，其特征在于：所述拉杆(7a)还包括拉杆连接部(70)和拉杆受动部(73)，拉杆驱动部(71a)、拉杆连接部(70a)和拉杆受动部(73a)依次相连，拉杆连接部(70a)设有拉杆滑动孔(700a)，拉杆滑动孔(700a)为腰形孔且套设在壳体(1)上的拉杆滑动轴(10-7a)上；
    所述断路器还包括双金属片(8a)和/或磁通脱扣器，双金属片(8a)和/或磁通脱扣器与拉杆受动部(73a)驱动配合以驱动拉杆(7a)滑动。
PCT/CN2022/136052 2021-12-02 2022-12-02 一种断路器 WO2023098841A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2022399749A AU2022399749A1 (en) 2021-12-02 2022-12-02 Circuit breaker
EP22900645.7A EP4318536A1 (en) 2021-12-02 2022-12-02 Circuit breaker

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202111467381.0A CN116230456A (zh) 2021-12-02 2021-12-02 一种断路器
CN202111467381.0 2021-12-02
CN202123272320.7 2021-12-23
CN202123272320.7U CN217333981U (zh) 2021-12-23 2021-12-23 脱扣机构

Publications (1)

Publication Number Publication Date
WO2023098841A1 true WO2023098841A1 (zh) 2023-06-08

Family

ID=86611540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/136052 WO2023098841A1 (zh) 2021-12-02 2022-12-02 一种断路器

Country Status (3)

Country Link
EP (1) EP4318536A1 (zh)
AU (1) AU2022399749A1 (zh)
WO (1) WO2023098841A1 (zh)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101681747A (zh) * 2006-11-03 2010-03-24 Abb股份有限公司 电开关
CN102254755A (zh) * 2011-06-28 2011-11-23 法泰电器（江苏）股份有限公司 断路器操作机构
CN211350533U (zh) * 2019-12-14 2020-08-25 浙江正泰电器股份有限公司 断路器的操作机构
CN217061795U (zh) * 2021-12-02 2022-07-26 上海正泰智能科技有限公司 操作机构及开关装置
CN217333981U (zh) * 2021-12-23 2022-08-30 上海正泰智能科技有限公司 脱扣机构
CN217333978U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 断路器
CN217333864U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 开关装置
CN217333977U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 一种操作机构及开关装置
CN217333964U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 一种断路器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101681747A (zh) * 2006-11-03 2010-03-24 Abb股份有限公司 电开关
CN102254755A (zh) * 2011-06-28 2011-11-23 法泰电器（江苏）股份有限公司 断路器操作机构
CN211350533U (zh) * 2019-12-14 2020-08-25 浙江正泰电器股份有限公司 断路器的操作机构
CN217061795U (zh) * 2021-12-02 2022-07-26 上海正泰智能科技有限公司 操作机构及开关装置
CN217333978U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 断路器
CN217333864U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 开关装置
CN217333977U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 一种操作机构及开关装置
CN217333964U (zh) * 2021-12-02 2022-08-30 上海正泰智能科技有限公司 一种断路器
CN217333981U (zh) * 2021-12-23 2022-08-30 上海正泰智能科技有限公司 脱扣机构

Also Published As

Publication number Publication date
AU2022399749A1 (en) 2023-11-09
EP4318536A1 (en) 2024-02-07

Similar Documents

Publication Publication Date Title
JPS60167227A (ja) 多極遮断器の操作機構
WO2020135398A1 (zh) 小型断路器
CN217333964U (zh) 一种断路器
WO2017020817A1 (zh) 断路器脱扣机构
WO2017020816A1 (zh) 断路器储能操作机构
WO2020135386A1 (zh) 小型断路器
WO2022028139A1 (zh) 插拔式断路器的机构组件
CA2521291C (en) Trip indicative rocker switch
CN217333978U (zh) 断路器
WO2020135402A1 (zh) 小型断路器
US8053694B2 (en) Mechanism or resettable trip indicator mechanism for a circuit interrupter and circuit interrupter including the same
CA2783232C (en) Electrical switching apparatus and secondary trip mechanism therefor
WO2023098841A1 (zh) 一种断路器
CN211654742U (zh) 断路器的操作机构
WO2017020819A1 (zh) 断路器联锁装置
WO2020135410A1 (zh) 小型断路器
US4786771A (en) Circuit interrupter with two stage stopper preventing bounce back
WO2021208488A1 (zh) 断路器
WO2021208493A1 (zh) 插入式断路器
CN211350533U (zh) 断路器的操作机构
CN112992620A (zh) 断路器的操作机构
CN211238135U (zh) 一种油阻尼式小型断路器
CN116230456A (zh) 一种断路器
CN211350534U (zh) 断路器的操作机构
CN112967910A (zh) 断路器的操作机构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22900645

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: AU2022399749

Country of ref document: AU

Ref document number: 2022399749

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2022900645

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022900645

Country of ref document: EP

Effective date: 20231025

ENP Entry into the national phase

Ref document number: 2022399749

Country of ref document: AU

Date of ref document: 20221202

Kind code of ref document: A