CN108269719A - Circuit breaker operation mechanism and its assembly method - Google Patents
Circuit breaker operation mechanism and its assembly method Download PDFInfo
- Publication number
- CN108269719A CN108269719A CN201710004224.3A CN201710004224A CN108269719A CN 108269719 A CN108269719 A CN 108269719A CN 201710004224 A CN201710004224 A CN 201710004224A CN 108269719 A CN108269719 A CN 108269719A
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- Prior art keywords
- moving contact
- lock
- housing
- handle
- lever
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Breakers (AREA)
Abstract
A kind of circuit breaker operation mechanism and its assembly method, wherein circuit breaker operation mechanism includes the handle, moving contact and the lock that are pivoted on respectively in housing, handle passes through elastic connection between the first spring and housing, handle is drivingly connected by transmission component and moving contact, and moving contact passes through elastic connection between second spring and housing；Hasp connection between the connecting rod and lock of transmission component, lock pass through elastic connection between third spring and housing.The step of assembly method of circuit breaker operation mechanism, is including arm pivot post, installation axle and fulcrum are separately mounted on the bottom plate of housing；First spring and handle are rotatably installed on arm pivot post successively；Moving contact is rotatably installed on fulcrum；Transmission component is laminated and is mounted on handle and moving contact；Second spring both ends are mounted in installation axle and moving contact；Lock is rotatably installed on fulcrum.The present invention provides a kind of circuit breaker operation mechanism simple in structure, convenient for assembly and its assembly method.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, and in particular to a kind of circuit breaker operation mechanism and its assembly method.
Background technology
Breaker come detection failure and disconnects the circuit influenced by failure using the unlocking manner of various mechanisms.Tripper
Including sensor and start the mechanism of breaker, which causes the engagement of moving contact and static contact when detecting failure
It disconnects.The use of a type of tripgear is electromagnetic trip device in breaker, is commonly used to break during accident
Circuit breaker.Electromagnetic trip device another example is solenoid, which is connected in series on the conducting wire of breaker, and
And start-up operation mechanism when being arranged in the electric current in conducting wire more than predeterminated level.What is used in breaker is another type of
Tripgear is thermal tripping device, is commonly used to the cut-off breaker during overload event.One example of thermal tripping device
It is thermal element, typically bimetallic element (bimetallic), this thermal element are connected in series on the conducting wire of breaker, and
Start-up operation mechanism when the electric current being arranged in conducting wire reaches predetermined time amount more than predeterminated level.
Existing circuit breaker operation mechanism part is more, and assembling is difficult, is not easy to realize Automated assembly, is filled so as to cause breaker
With of high cost.Meanwhile artificial assembly problem is relatively more.In recent years, domestic human cost rises, and breaker assembly crewman's is assembled into
This promotion is apparent.Therefore, it is necessary to a kind of breakers that machine can be utilized to replace manual assembly, are ensureing that each index of breaker will
Under the premise of asking, cost of labor is greatly lowered.
In addition, existing breaker is typically provided with contact supporter, for supporting and installing moving contact and be used as operation machine
Driving member between structure and moving contact, to ensure moving contact motion stability.But with the trend of breaker Miniaturization Design, in order to
Simplify structure and save contact supporter this part, and moving contact acts in the case of losing the support and limiting of contact supporter
When be susceptible to along its shaft axially shift the phenomenon that, the stability of moving contact is caused to be difficult to be protected, so as to influence
The overall performance of breaker.
Moreover, it is used in existing circuit breaker operation mechanism between the lock and Shell of circuit breaker that coordinate with electromagnetic trip device
Equipped with elastic component, to ensure that lock can act reset, the elastic component generally use torsional spring or common spring or it is not easy to pacify
Dress or connective stability and elastic force are inadequate.
Invention content
The defects of it is an object of the invention to overcome the prior art, provides a kind of breaker simple in structure, convenient for assembly
Operating mechanism and its assembly method.
To achieve the above object, present invention employs following technical solutions：
A kind of circuit breaker operation mechanism, including the handle 2, moving contact 4 and lock 6 being pivoted on respectively in housing 1, institute
It states handle 2 and realizes that handle 2 can reset, also, handle 2 passes through transmission group by elastic connection between the first spring 20 and housing 1
Part 3 and one end of moving contact 4 are drivingly connected, and the other end of the moving contact 4 is matched with the static contact 5 in housing 1, and dynamic tactile
First 4 realize that moving contact 4 can reset by elastic connection between second spring 40 and housing 1；The connecting rod 30 of the transmission component 3 with
Hasp connection between lock 6, and the lock 6 realizes that lock 6 can answer by elastic connection between third spring 60 and housing 1
Position；
Handle 2 can drive moving contact 4 to rotate to contact or detach realization breaker with static contact 5 by transmission component 3
Closure or disjunction；When lock 6 unlocks with connecting rod 30, moving contact 4 is driven to rotate and then realization open circuit is detached with static contact 5
The dropout of device.
Preferably, the connecting rod 30 and lock 6 are layered in respectively on moving contact 4, and lock 6 stacked together is touched with dynamic
First 4, which are rotatably installed in realization on fulcrum 12, is coaxially pivoted in housing 1, and lock 6 is equipped with first coordinated with fulcrum 12
Axis hole 61, moving contact 4 are equipped with the second axis hole 41 coordinated with fulcrum 12.
Preferably, the middle part of the connecting rod 30 is drivingly connected with handle 2, and one end and the moving contact 4 of connecting rod 30 are drivingly connected,
The other end and 6 hasp connections of lock.
Preferably, the handle 2 is drivingly connected by the first lever 31 with connecting rod 30, the both ends point of first lever 31
It is not plugged in the first lever hole of handle 2 and the second lever hole 33 of connecting rod 30；The connecting rod 30 by the second lever 32 with
Moving contact 4 is drivingly connected, one end of second lever 32 be sequentially inserted into connecting rod 30 third lever hole 34 and moving contact 4
In four lever holes 42, the other end is plugged in the 5th lever hole 43 of moving contact 4.
Preferably, the side of the moving contact 4 is equipped with the static contact 5 and second spring 40, and the opposite side of moving contact 4 is set
There is limit shaft 13；The second spring 40 is tension spring, and one end of second spring 40 is hooked in the installation axle 11 of housing 1, the other end
It is hooked in the mounting hole 44 of moving contact 4.
Preferably, the breaker further includes electromagnetic system 7 and bimetal leaf 9 in housing 1, the electromagnetism
System 7 includes touching the striker 71 of cooperation with the trigger unit 64 of lock 6；The thermal release device includes the drawing coupled with lock 6
Bar 8 and the bimetal leaf 9 that cooperation is pulled with pull rod 8.
Preferably, one end of the lock 6 and 30 hasp connection of connecting rod, the other end are equipped with the pull rod for connecting rod 8
Hole 66, the middle part one side of the lock 6 are equipped with the trigger unit 64, and middle part opposite side is pivoted on housing 1.
Preferably, the moving contact 4 is rotatably installed in by the second axis hole 41 thereon on the fulcrum 12 of housing 1, described
Second axis hole 41 is more than the waist-shaped hole of 12 outer diameter of fulcrum for length so that moving contact 4 can be along the length direction phase of the second axis hole 41
Fulcrum 12 is moved.
The circuit breaker operation mechanism of the present invention, is used as between handle, moving contact and lock by connecting rod and is driven hinge, handle
Directly moving contact rotation is driven to realize closure and the disjunction of breaker by connecting rod, lock with connecting rod directly by unlocking band
The dropout of breaker is realized in dynamic moving contact rotation, saves the supporter for supporting with installing connecting rods, lock and moving contact, is simplified
Structure reduces the quantity of parts, assembles simpler convenience, is easy to implement Automated assembly, reduces production cost, improves dress
With efficiency, while shorten drive path, reliable transmission is stablized, and improves the reliability and stability of breaker.
A kind of assembly method of circuit breaker operation mechanism, includes the following steps：
A. arm pivot post 15, installation axle 11 and fulcrum 12 are separately mounted on the bottom plate 10 of housing 1；
B., the first spring 20 and handle 2 that are resetted for handle 2 are rotatably installed in the arm pivot post 15 of housing 1 successively
On；
C. moving contact 4 is rotatably installed on the fulcrum 12 of housing 1；
D. transmission component 3 is laminated on handle 2 and moving contact 4, and the both ends of transmission component 3 respectively with handle 2
It connects with moving contact 4, is drivingly connected so as to fulfill handle 2 and moving contact 4；
E., 40 one end of second spring resetted for moving contact 4 is mounted on to the installation axle 11 of housing 1, other end installation
In the mounting hole 44 of moving contact 4；
F. 6 12 upper stratas of fulcrum for being rotatably installed in housing 1 will be latched to fold and be placed on moving contact 4, latch 6 one end and biography
Dynamic component 3 is oppositely arranged.
Preferably, before step d, transmission component 3 is located to first lever 31 at both ends and one end of the second lever 32
It is inserted into respectively in the second lever hole 33 and third lever hole 34 of connecting rod 30；When step d installs transmission component 3, by first
The other end of lever 31 is inserted into the first lever hole of handle 2, meanwhile, the both ends of the second lever 32 are inserted into dynamic touch respectively
In first 4 the 4th lever hole 42 and the 5th lever hole 43.
The assembly method of the circuit breaker operation mechanism of the present invention, by as installation anchor point and being broken using each axis of housing
The mounting means that each part of road device operating mechanism stacks gradually simplifies assembly difficulty, ensures integral installation process without any confusion,
It is easy to implement Automated assembly.
Description of the drawings
Fig. 1 is the structure diagram of the breaker of the present invention；
Fig. 2 is the structure diagram of the circuit breaker operation mechanism of the present invention；
Fig. 3 is the structure diagram of the connecting rod of the present invention；
Fig. 4 is the structure diagram of the moving contact of the present invention；
Fig. 5 is the structure diagram of the lock of the present invention；
Fig. 6 is the partial structurtes enlarged drawing in Fig. 1 of the present invention；
Fig. 7 is the structure diagram of the transmission component of the present invention；
Fig. 8 is the structure diagram of one embodiment of the second lever of the present invention；
Fig. 9 is the structure diagram of another embodiment of the second lever of the present invention.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 to 9 provides, the circuit breaker operation mechanism further illustrated the present invention and its assembling
The specific embodiment of method.The circuit breaker operation mechanism and its assembly method of the present invention is not limited to the following description.
As shown in Figure 1, the circuit breaker operation mechanism of the present invention, including the handle 2, dynamic being pivoted on respectively in housing 1
Contact 4 and lock 6, the handle 2 realize that handle 2 can reset by elastic connection between the first spring 20 and housing 1, also,
Handle 2 is drivingly connected by one end of transmission component 3 and moving contact 4, the other end and the stationary contact in housing 1 of the moving contact 4
First 5 match, and moving contact 4 realizes that moving contact 4 can reset by elastic connection between second spring 40 and housing 1；The biography
Between the connecting rod 30 of dynamic component 3 and lock 6 can hasp connection, and the lock 6 pass through it is elastic between third spring 60 and housing 1
Connection realizes that lock 6 can reset；Handle 2 can drive moving contact 4 to rotate to contact or divide with static contact 5 by transmission component 3
From the closure or disjunction for realizing breaker；Lock 6 with connecting rod 30 unlock when, drive moving contact 4 rotate so that with static contact 5
The dropout of breaker is realized in separation.It is used as between handle, moving contact and lock by connecting rod and is driven hinge, handle directly passes through company
Bar drives moving contact rotation to realize closure and the disjunction of breaker, latches and directly moving contact is driven to turn by unlocking with connecting rod
The dynamic dropout for realizing breaker, saves the supporter for supporting with installing connecting rods, lock and moving contact, simplifies structure, reduces
The quantity of parts assembles simpler convenience, is easy to implement Automated assembly, reduces production cost, improves efficiency of assembling, together
When shorten drive path, reliable transmission is stablized, and improves the reliability and stability of breaker.
As shown in Figs 1-4, specifically, the connecting rod 30 and lock 6 are layered on moving contact 4, and stacked together respectively
Lock 6 and moving contact 4 be rotatably installed in and realize on fulcrum 12 and coaxially be pivoted in housing 1, latch 6 and be equipped with and fulcrum
First axis hole 61 of 12 cooperations, the middle part of the moving contact 4 are equipped with the second axis hole 41 coordinated with fulcrum 12, the moving contact 4
It is rotatably installed on the fulcrum 12 of housing 1 by the second axis hole 41 thereon, the fulcrum 12 is vertically fixed on the bottom plate of housing 1
On 10.The connecting rod and lock of hasp connection, which are layered in respectively on moving contact, is located at same stratum, and latch and coaxially set with moving contact
It puts, simplifies structure, it is well arranged, it convenient for orderly assembling, realizes Automated assembly, assembling level is improved, conducive to connecting rod and lock
Between simple structure snap connection, while ensure that quick between the parts of operating mechanism and be driven in an orderly manner, pass
Relatively reliable stabilization is moved, improves closure, the interrupting performance of breaker, trip action is more quick, stablizes.
The connecting rod 30 is equipped with for the lock tooth 35 with latching 6 hasp connections, and the lock tooth 35 is overlapped on 6 ends of lock
It overlaps in notch 62 to ensure that operating mechanism moves.The hasp structure of tooth and gap type is locked, installation exact requirements are low, convenient for automatic
Makeup is matched.In addition, the middle part of the connecting rod 30 is drivingly connected with handle 2, one end and the moving contact 4 of connecting rod 30 are drivingly connected, separately
One end and 6 hasp connections of lock.Moreover, the handle 2 is drivingly connected by the first lever 31 with connecting rod 30, first lever
31 both ends are plugged on respectively in the first lever hole of handle 2 and the second lever hole 33 of connecting rod 30.The connecting rod 30 passes through
Two levers 32 are drivingly connected with moving contact 4, and one end of second lever 32 is sequentially inserted into 34 He of third lever hole of connecting rod 30
In 4th lever hole 42 of moving contact 4, the other end is plugged in the 5th lever hole 43 of moving contact 4.By the second lever to layer
The connecting rod and moving contact that stack realize linkage and limiting, ensure that operating mechanism is saved in the case of part between each part
Energy stable drive improves linkage and synchronism, while connecting rod and handle can be realized by the connection of lever plug-in and move tactile
Linkage between head, assembly manipulation is simple, is easy to implement Automated assembly.The 5th lever hole 43 is located at the 4th lever hole 42
Between the second axis hole 41.
As shown in figure 4, the structure of the moving contact of the present invention, entire moving contact 4 are punched by metal plate, elongated, class
Like rectangle, utmostly to utilize raw sheet material.The moving contact 4 is rotatably installed in housing 1 by the second axis hole 41 thereon
On fulcrum 12 on, second axis hole 41 for length be more than fulcrum 12 outer diameter waist-shaped hole so that moving contact 4 can be along second
The length direction of axis hole 41, that is, direction A, is moved relative to fulcrum 12.In addition, the side of the moving contact 4 is equipped with the static contact
5 and second spring 40, the opposite side of moving contact 4 is equipped with limit shaft 13, for limit between moving contact 4 and static contact 5 open away from；
The second spring 40 is tension spring, and one end of second spring 40 is hooked in the installation axle 11 of housing 1, and the other end is hooked in moving contact 4
Mounting hole 44 in；The mounting hole 44 is between the 5th lever hole 43 and the second axis hole 41.The mounting hole 44 and second
Axis hole 41 is connected, manufacture easy to process.Breaker, which is in, opens a sluice gate under state as shown in Fig. 2, fulcrum 12, which is in, leans against the second axis
In the right side arc in hole 41；In the making process of breaker, in moving contact 4 and static contact 5 not in contact with preceding, moving contact 4 is with fulcrum 12
Centered on rotate, until after moving contact 4 and static contact 5 contact, moving contact 4 switchs to centered on its contact point with static contact 5
It rotates, fulcrum 12 is detached with moving contact 4 until operating mechanism locks at this time.
As shown in Figure 1, the mounting structure of the first spring of the present invention, the handle that the handle 2 is rotatably installed in housing 1 turns
On axis 15, first spring 20 is torsional spring, and the spring body at 20 middle part of the first spring, which is sleeved on arm pivot post 15, is located at handle 2
Between the bottom plate of housing 1, the both ends of the first spring 20 are connected to respectively on handle 2 and housing 1.
The breaker of the present invention, further includes electromagnetic system 7 and bimetal leaf 9 in housing 1, the electromagnetic system
7 include touching the striker 71 of cooperation with the trigger unit 64 of lock 6.When reaching electromagnetic trip condition in circuit, electromagnetic system 7
Striker 71 pops up, and in the trigger unit 64 for impinging upon lock 6, lock 6 to be driven to be detached around the rotation of fulcrum 12 with connecting rod 30, operates machine
Structure unlocks.The thermal release device includes the pull rod 8 coupled with lock 6 and the bimetal leaf 9 of cooperation is pulled with pull rod 8.
When reaching thermal tripping condition in circuit, bimetal leaf 9 is bent and pull rod 8 is driven to pull lock 6, with driving lock 6 around fulcrum
12 rotations are detached with connecting rod 30, and operating mechanism unlocks.It is emphasized that：Described unlocks only in breaker
Occur when electromagnetic system 7 or the driving of bimetal leaf 9 lock 6, only occur during the tripping of breaker in other words, and
It will not all unlock during normal combined floodgate and normal separating brake.Under normal "on" position and normal gate-dividing state,
And during normal combined floodgate operating process and normal sub-switching operation, due to breaker electromagnetic system 7 or bimetal leaf 9 not
Driving lock 6, therefore latch 6 and be in lock fit state always.
In addition, as shown in Figure 1 and Figure 5, one end of the lock 6 and 30 hasp connection of connecting rod, latch 6 other end with it is disconnected
The thermal release device of road device is oppositely arranged, and equipped with the tie rod hole 66 for connecting rod 8, the middle part one side of the lock 6 is set
Have the trigger unit 64 coordinated with electromagnetic system 7, latch 6 middle part opposite side be equipped with for be pivoted on housing 1 first
Axis hole 61 and equipped with for third spring 60 clinch 600 against crotch 63.Lock is driven convenient for the tripgear of breaker
Quick acting is detained, improves the Interruption of breaker.The trigger unit 64 of lock 6 is equipped with linkage axis hole 65, for connecting housing 1
On can make operating mechanism unlock linkage part；The axial direction of linkage 65 and first axis hole 61 of axis hole is mutually parallel.It is described
Linkage part can be the universal driving shaft for the lock for connecting multiple single-pole circuit breakers.
The present invention breaker making process in, handle 2 overcomes the first spring 20 to do work from starting, push connecting rod 30 to
Preceding movement, because of the pressure effect of third spring 60, connecting rod 30 contacts hasp with lock 6, so as to push moving contact 4 around fulcrum 12
Rotation, so that the static contact 5 that moving contact 4 is moved on electromagnetic system 7 is drawn close until being closed.At this point, moving contact 4 is again with moving contact
4 and 5 binding site of static contact is mobile further along for fulcrum until the combined floodgate of handle 2 finishes, second spring 40 is always gram in the process
Moving contact 4 is taken to do work and provide end pressure for product.
During the tripping of the breaker of the present invention, play the role of the electromagnetic system 7 of instantaneous protection and play delay protection
The bimetal leaf 9 of effect will all utilize lock 6 or 8 company of drive of pull rod being connected on lock 6 after respective failure is triggered
Bar 30 unlocks the operating mechanism of breaker, and moving contact 4 resets under the action of second spring 40, and on by housing 1
Stop after the blocking of limit shaft 13, while handle 2 resets to open position under the action of the first spring 20, lock 6 is in third
It is resetted under the action of spring 60.If for immediate current in the range of agreement is threaded off, lock 6 is applied in dropout under "on" position
Position, handle 2 can not make connecting rod 30 and 6 hasps of lock during the motion, so that handle 2 can not close closing position, with reality
The automatically jumping function of existing breaker.
As shown in fig. 7, the transmission component of the breaker of the present invention, the connecting rod 30 and moving contact 4, which are laminated, is mounted on open circuit
In the housing 1 of device, and moving contact 4 is located between connecting rod 30 and the bottom plate 10 of housing 1, the connecting rod 30 by the second lever 32 with
Moving contact 4 is drivingly connected, and second lever 32 includes the first transmission arm 321 and the second transmission arm that are set perpendicular to bottom plate 10
322 and the connecting portion 323 that is connected between one end of the first transmission arm 321 and the second transmission arm 322, first transmission
The other end of arm 321 is sequentially passed through in the third lever hole 34 of connecting rod 30 and the 4th lever hole 42 of moving contact 4 and is touched positioned at dynamic
Between first 4 and bottom plate 10, the other end of second transmission arm 322 is passed through in the 5th lever hole 43 of moving contact 4 and positioned at dynamic
Between contact 4 and bottom plate 10, also, the connecting portion 323 is located at the top of connecting rod 30.Pass through two transmission arms of the second lever
And connecting portion with realize be drivingly connected between connecting rod and moving contact and coordinate housing the pairs of connecting rod of sole shape and moving contact limit
Close ring, it is simple in structure, shift in the axial direction of transmission arm when connecting rod and moving contact effectively being avoided to rotate, improve open circuit
The action stability and reliability of device operating mechanism.
Specifically, the both ends of the connecting portion 323 of second lever 32 respectively with the first transmission arm 321 and the second transmission arm
322 vertical connections.As shown in Figure 7 and Figure 8, one embodiment of the second lever of the invention, second lever 32 are U-shaped knot
Structure, the first transmission arm 321 of second lever 32 and the both ends of the second transmission arm 322 are concordantly set, and the first transmission arm 321
With the equal length of the second transmission arm 322, the connecting portion 323 is is vertically connected on the first transmission arm 321 and the second transmission arm
Straight bar between 322 one end.As shown in figure 9, the structure of second lever of the present embodiment is simple, the second lever is used to connect
The connecting portion of two transmission arms uses straight bar so that the transmission between connecting rod and moving contact is concentrated apart from short, driving force, is realized
Fast pulldown between connecting rod and moving contact also ensures connecting rod and moving contact stable action, improves the performance of circuit breaker operation mechanism,
It is easy to implement Automated assembly simultaneously, improves efficiency of assembling.Another embodiment of the second lever of the present invention, described first passes
One end of 321 and second transmission arm 322 of swing arm is concordantly set, and the length of the first transmission arm 321 is more than the second transmission arm 322
Length, the connecting portion 323 are the rank for being connected to three-stage between the other end of the first transmission arm 321 and the second transmission arm 322
Ladder bars, the both ends section of the stepped stem respectively with 322 vertical connection of the first transmission arm 321 and the second transmission arm, in stepped stem
Between section it is parallel with the first transmission arm 321 and the second transmission arm 322, and the intermediate segment length of stepped stem and the first transmission arm 321 and
The length difference of second transmission arm 322 is equal.Second lever of the present embodiment uses three for connecting the connecting portion of two transmission arms
The stepped stem of segmentation further defines moving contact, moving contact is effectively avoided to shift in the axial direction of transmission arm, improves dynamic
The stationarity of work.
As shown in figures 1 to 6, the elastic connection structure of Shell of circuit breaker of the invention and lock, including housing 1 and
The lock 6 coordinated with circuit breaker electric magnetic system 7, the lock 6 are described by elastic connection between third spring 60 and housing 1
Third spring 60 is spring leaf, and one end of the spring leaf is ridden over for clinch 600 on lock 6, and the other end of spring leaf is curved
Folding part is mounted on the position limiting structure of housing 1.Traditional torsional spring and common spring is replaced to realize housing and lock by using spring leaf
Elastic connection between button, and using bridging type connection mode, simple in structure, installation operation difficulty between spring leaf and lock
Relatively low with required precision, springs are more conducive to manipulator compared to torsional spring and capture, and are easy to implement Automated assembly, improve assembling
Efficiency, while the bending part of spring leaf matches with the position limiting structure of housing and realizes that spring leaf is installed with shell stability, improves steady
Qualitative and reliability.
Specifically, the position limiting structure includes the first limited block 14 for being located at 6 sides of lock, and the bending part is included in angle
The first flat segments 601 and the second flat segments 602 of connection are spent, first flat segments 601 and clinch 600 are located at first respectively
The both sides of limited block 14, first limited block 14 are located between 6 and second flat segments 602 of lock, and the second flat segments 602
Both ends are connect respectively with the first flat segments 601 and clinch 600.The angled connection refers to the first limiting section and the second limiting
Section between angle not 0 deg or 180 °.Further, 601 and second flat segments of the first flat segments, the 602 L-shaped connection, institute
The first limited block 14 is stated towards parallel between the side of the first flat segments 601 and the first flat segments 601, the first limited block 14 towards
It is parallel between the side of second flat segments 602 and the second flat segments 602.
In addition, the position limiting structure further includes the second limited block 15 positioned at 14 side of the first limited block, second limit
Position block 15 is equipped with the arc sections 150 with 14 relative spacing of the first limited block, and one end of second flat segments 602 passes through arc section
Connect with clinch 600, the arc section between the first limited block 14 and the second limited block 15, and with the second limited block 15
Arc sections 150 abut against.The arc section includes the first arc section 603 and the second arc section 604 that are connected, and described first
Arc section 603 is connect with one end of the second flat segments 602, and the first arc section 603 is to 15 protrusion of the second limited block and is against circular arc
In portion 150, and the fossaperturate of the first arc section 603 is directed toward the first limited block 14, second arc section 604 and clinch 600
One end connection, the second arc section 604 is directed toward the second limiting to the protrusion of the first limited block 14, the fossaperturate of the second arc section 604
Block 15 is simultaneously resisted against in arc sections 150.The bending part of spring leaf is by being equipped with the limits of two sections of opposite arc sections in direction and housing
It the phenomenon that bit architecture coordinates, and realization limits, the bending part of spring leaf is effectively avoided to shift in a plurality of directions, further carries
High spring leaf is mounted on the stability on housing.Certainly, the arc section can also be one-part form arc structure.
Moreover, the clinch 600 of the spring leaf is ridden on the crotch 63 of lock 6, the clinch 600 rides over for one end
The straight laminated structure that the other end is connect with bending part on the arcwall face of crotch 63.It is easy to implement spring leaf in lock rotation process
Clinch still can steadily ride on lock, improve stability and reliability.The crotch 63 is set with bending part sequence,
Straight clinch 600 is then tilted and is connected between crotch 63 and bending part.
As depicted in figs. 1 and 2, the assembly method of breaker of the invention, includes the following steps：
A. arm pivot post 15, installation axle 11 and fulcrum 12 are separately mounted on the bottom plate 10 of housing 1；
B., the first spring 20 and handle 2 that are resetted for handle 2 are rotatably installed in the arm pivot post 15 of housing 1 successively
On；
C. moving contact 4 is rotatably installed on the fulcrum 12 of housing 1；
D. transmission component 3 is laminated on handle 2 and moving contact 4, and the both ends of transmission component 3 respectively with handle 2
It connects with moving contact 4, is drivingly connected so as to fulfill handle 2 and moving contact 4；
E., 40 one end of second spring resetted for moving contact 4 is mounted on to the installation axle 11 of housing 1, other end installation
In the mounting hole 44 of moving contact 4；
F. 6 12 upper stratas of fulcrum for being rotatably installed in housing 1 will be latched to fold and be placed on moving contact 4, latch 6 one end and biography
Dynamic component 3 is oppositely arranged.
The assembly method of the breaker of the present invention, by using each axis of housing to install each of anchor point and breaker
The mounting means that part stacks gradually simplifies assembly difficulty, ensures integral installation process without any confusion, is easy to implement automatic makeup
Match.
Also, before step d, transmission component 3 is located to first lever 31 at both ends and one end point of the second lever 32
It is not inserted into the second lever hole 33 and third lever hole 34 of connecting rod 30；When step d installs transmission component 3, by the first thick stick
The other end of bar 31 is inserted into the first lever hole of handle 2, meanwhile, the both ends of the second lever 32 are inserted into moving contact respectively
In 4 the 4th lever hole 42 and the 5th lever hole 43.
After step f, lock 6 can will be ridden over for latching 6 60 one end of third spring resetted, the other end is mounted on
In housing 1.
After step f, one end of pull rod 8 can be inserted into the tie rod hole 66 of lock 6, the other end and bimetal leaf 9
It is oppositely arranged.
Before arriving step c after step b, as shown in Figure 1, the electromagnetic system 7 and arc-chutes of breaker can be pacified successively
It is located at the lower section of handle 2 in housing 1, the wherein both sides of electromagnetic system 7 are connect respectively with static contact 5 and wire connection terminal.It is logical
Handle, electromagnetic system and arc-chutes are crossed according to top-down erection sequence, are easy to implement Automated assembly.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of circuit breaker operation mechanism, it is characterised in that：Including be pivoted on respectively in housing (1) handle (2), dynamic touch
Head (4) and lock (6), the handle (2) realize that handle (2) can by elastic connection between the first spring (20) and housing (1)
Reset, also, handle (2) is drivingly connected by one end of transmission component (3) and moving contact (4), the moving contact (4) it is another
End is matched with the static contact (5) in housing (1), and moving contact (4) is connected by elasticity between second spring (40) and housing (1)
It connects and realizes that moving contact (4) can reset；Hasp connection between the connecting rod (30) of the transmission component (3) and lock (6), and the lock
Button (6) realizes that lock (6) can reset by elastic connection between third spring (60) and housing (1)；
It is disconnected to contact or detach realization with static contact (5) that handle (2) can drive moving contact (4) to rotate by transmission component (3)
The closure of road device or disjunction；When lock (6) and connecting rod (30) unlock, drive moving contact (4) rotate so that with static contact (5)
The dropout of breaker is realized in separation.
2. circuit breaker operation mechanism according to claim 1, it is characterised in that：The connecting rod (30) and lock (6) are respectively
It is layered on moving contact (4), and lock stacked together (6) and moving contact (4) are rotatably installed on fulcrum (12) and realize together
Axis is pivoted in housing (1), and lock (6) is equipped with the first axis hole (61) coordinated with fulcrum (12), and moving contact is set on (4)
There is the second axis hole (41) with fulcrum (12) cooperation.
3. circuit breaker operation mechanism according to claim 2, it is characterised in that：The middle part of the connecting rod (30) and handle
(2) it is drivingly connected, one end and the moving contact (4) of connecting rod (30) are drivingly connected, the other end and lock (6) hasp connection.
4. the circuit breaker operation mechanism according to Claims 2 or 3, it is characterised in that：The handle (2) passes through the first lever
(31) be drivingly connected with connecting rod (30), the both ends of first lever (31) be plugged on respectively handle (2) the first lever hole and
In second lever hole (33) of connecting rod (30)；The connecting rod (30) is drivingly connected by the second lever (32) and moving contact (4), institute
The one end for stating the second lever (32) is sequentially inserted into the third lever hole (34) of connecting rod (30) and the 4th lever hole of moving contact (4)
(42) in, the other end is plugged in the 5th lever hole (43) of moving contact (4).
5. circuit breaker operation mechanism according to claim 1, it is characterised in that：The side of the moving contact (4) is equipped with institute
Static contact (5) and second spring (40) are stated, the opposite side of moving contact (4) is equipped with limit shaft (13)；The second spring (40) is
Tension spring, one end of second spring (40) are hooked in the installation axle (11) of housing (1), and the other end is hooked in the mounting hole of moving contact (4)
(44) in.
6. circuit breaker operation mechanism according to claim 1, it is characterised in that：The breaker is further included mounted on shell
Electromagnetic system (7) and bimetal leaf (9) in body (1), the electromagnetic system (7) are touched including the trigger unit (64) with latching (6)
The striker (71) of dynamic cooperation；The thermal release device includes the pull rod (8) coupled with lock (6) and pulls with pull rod (8) to coordinate
Bimetal leaf (9).
7. circuit breaker operation mechanism according to claim 6, it is characterised in that：One end of the lock (6) and connecting rod
(30) hasp connection, the other end are equipped with the tie rod hole (66) for connecting rod (8), and the middle part one side of the lock (6) is set
There is the trigger unit (64), middle part opposite side is pivoted on housing (1).
8. circuit breaker operation mechanism according to claim 1, it is characterised in that：The moving contact (4) passes through thereon
Two axis holes (41) are rotatably installed on the fulcrum (12) of housing (1), and second axis hole (41) is more than fulcrum (12) outside for length
The waist-shaped hole of diameter so that moving contact (4) can be mobile relative to fulcrum (12) along the length direction of the second axis hole (41).
9. a kind of assembly method of circuit breaker operation mechanism, it is characterised in that：Include the following steps：
A. arm pivot post (15), installation axle (11) and fulcrum (12) are separately mounted on the bottom plate (10) of housing (1)；
B. the first spring (20) of handle (2) reset will be used for and handle (2) is rotatably installed in the arm pivot post of housing (1) successively
(15) on；
C. moving contact (4) is rotatably installed on the fulcrum (12) of housing (1)；
D. transmission component (3) is laminated and is mounted on handle (2) and moving contact (4), and the both ends of transmission component (3) respectively with hand
Handle (2) and moving contact (4) connection, are drivingly connected so as to fulfill handle (2) and moving contact (4)；
E. second spring (40) one end that moving contact (4) reset will be used for is mounted on the installation axle (11) of housing (1), the other end
In the mounting hole (44) of moving contact (4)；
F. fulcrum (12) upper strata for latching (6) and being rotatably installed in housing (1) is folded and is placed on moving contact (4), the one of lock (6)
End is oppositely arranged with transmission component (3).
10. the assembly method of circuit breaker operation mechanism according to claim 9, it is characterised in that：It, will before step d
Transmission component (3) is inserted into the second of connecting rod (30) respectively positioned at first lever (31) at both ends and one end of the second lever (32)
In lever hole (33) and third lever hole (34)；When step d installs transmission component (3), by the other end of the first lever (31)
It is inserted into the first lever hole of handle (2), meanwhile, the both ends of the second lever (32) are inserted into the of moving contact (4) respectively
In four lever holes (42) and the 5th lever hole (43).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004224.3A CN108269719B (en) | 2017-01-04 | 2017-01-04 | Circuit breaker operating mechanism and assembly method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710004224.3A CN108269719B (en) | 2017-01-04 | 2017-01-04 | Circuit breaker operating mechanism and assembly method thereof |
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| CN108269719B CN108269719B (en) | 2019-12-06 |
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| CN201710004224.3A Active CN108269719B (en) | 2017-01-04 | 2017-01-04 | Circuit breaker operating mechanism and assembly method thereof |
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| CN108878225A (en) * | 2018-07-13 | 2018-11-23 | 浙江正泰电器股份有限公司 | Breaker |
| CN109256258A (en) * | 2018-11-15 | 2019-01-22 | 特变电工沈阳变压器集团有限公司 | A kind of distribution transforming transformer of overload protection type |
| CN110364397A (en) * | 2019-08-14 | 2019-10-22 | 环宇集团浙江高科股份有限公司 | A kind of assembling clamp for moving contact |
| CN110676130A (en) * | 2019-11-04 | 2020-01-10 | 王苏华 | Driving mechanism of miniature circuit breaker and control system and method thereof |
| CN110853997A (en) * | 2019-10-24 | 2020-02-28 | 拉波斯电气(中国)有限公司 | Quick closing circuit breaker |
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|---|---|
| CN108269719B (en) | 2019-12-06 |
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