CN208157335U - A kind of operating mechanism and breaker of breaker - Google Patents
A kind of operating mechanism and breaker of breaker Download PDFInfo
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- CN208157335U CN208157335U CN201820648997.5U CN201820648997U CN208157335U CN 208157335 U CN208157335 U CN 208157335U CN 201820648997 U CN201820648997 U CN 201820648997U CN 208157335 U CN208157335 U CN 208157335U
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- 241001484259 Lacuna Species 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a kind of operating mechanism of breaker and breaker, the operating mechanism of the breaker includes handle, lock, tripping, first connecting rod, contact support, moving contact, first, second, third and the 4th elastomeric element.Five-bar mechanism is formed with handle, lock, first connecting rod, double contact systems in parallel and shell, passes through shaft hole matching between each connecting rod, the reliability of operating mechanism can be effectively improved；Tripping independently of five push and pull system outside, be equipped with tripping face and lock carry out contact slide cooperation, by adjusting tripping face operating angle, can effectively reduce the tripping force of mechanism.Second elastomeric element one end and contact are supported to connect, and one end is connect with shell, provide reset force and end pressure for double contact systems in parallel；Third elastomeric element one end and lock connect, and one end is connect with shell, provide reset force for handle；4th elastomeric element is placed in tripping bottom, provides reset force for tripping.
Description
Technical field
The utility model relates to electrical switchgear field, particularly a kind of operating mechanisms of breaker, or one kind
Contain the breaker for changing operating mechanism.
Background technique
Miniature circuit breaker be it is a kind of be widely used in industry and civil field low voltage terminal electric appliance, mainly by operating mechanism,
The composition such as contact system, arc quenching system, magnetic tripping system, thermal tripping system and shell.Operating mechanism generally comprises handle and extremely
A few connecting rod, contact system generally comprise moving contact and static contact.In existing miniature circuit breaker, moving contact usually and even
Bar connection, is contacted or is disconnected with static contact by the driving of connecting rod.It needs sometimes for description, also claims handle, connecting rod, moving contact
Appellation for operating mechanism, each component of breaker does not have mandatory restriction.
In existing miniature circuit breaker, operating mechanism is mostly a moving contact, ablation and day when due to breaking current
It is often used and contact is caused to wear, and be not very big since the factors such as cost, space limitation contact volume is made, therefore single action is touched
The breaker of head is subject to many limitations in aspect of performance such as breaking capacity, service life, temperature rises.Sometimes also for raising miniature circuit breaker
Cage rated current usually increase breaker volume or increase internal current conductor the methods of sectional area, it is close to reduce electric current
Degree.
Chinese patent CN 205984848U publication date on 2 22nd, 2017, discloses one kind《The small-sized open circuit of high current
The operating mechanism of device》, including moving contact frame, moving contact, lock, tripping, moving contact frame be linked to be one by bottom plate by two side plates
Body, lock and tripping are hinged on the side plate of moving contact frame, and side plate lower end has placed contact axis, and the front of moving contact lower end is set
Movable contact is set, forms the contact pocket being adapted to contact axis in the middle part of the moving contact back side, the setting of moving contact upper end is in contact axis and dynamic touching
Between head frame, contact pocket is correspondingly arranged on contact axis, and contact torsional spring is provided on moving contact frame, and contact one end of torsional spring is connected to
On moving contact frame, the other end is connected to the front of moving contact upper end.On moving contact be arranged contact pocket by on moving contact frame
The positioning of moving contact is realized in the cooperation of contact axis, and is given moving contact by torsional spring and swung to static contact.The disadvantage is that moving contact frame
On there are many places to the very high size of concentricity requirement.If the processing dimension of moving contact frame deviates, dynamic touching will lead to
Head occurs dislocation with static contact or contacts not exclusively, i.e., dynamic/static contact contact area is not up to requirement when designing, in this way meeting
The contact resistance between contact is increased, temperature rise cannot be guaranteed, and switch performance is affected.
Utility model content
In order to solve stability problem existing for the operating mechanism of existing breaker, the utility model provides a kind of open circuit
The operating mechanism of the operating mechanism and breaker of device, the breaker uses five-bar mechanism, can effectively reduce mechanical unlocking power,
With preferable stability and reliability, the operating mechanism of breaker and the service life of breaker, tolerance temperature rise can be effectively promoted
With the performances such as disjunction.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of operating mechanism of breaker, including the support of handle, lock, first connecting rod, contact, the first elastomeric element,
Two elastomeric elements, third elastomeric element and the 4th elastomeric element, moving contact, connecting shaft, limit shaft, locating shaft, fixing axle, jump
Button, release lever；
The handle is hinged by connecting shaft with lock；
The moving contact contains the first moving contact and the second moving contact, and the contact is supported to pass through positioning with moving contact
Axis, limit shaft and the first elastomeric element connect to form double contact systems in parallel；
The lock is supported to connect by two pins of first connecting rod with contact, the first pin and lock of first connecting rod
Hingedly, the second pin of first connecting rod is plugged in the bar shaped spliced eye of contact support；
Handle, lock, first connecting rod, the double contact system of the parallel connection and breaker shell can make up five-bar mechanism；
The tripping is equipped with tripping face and tripping face, the tripping face of the tripping face of tripping and lock can sliding contact match
It closes；
One end of second elastomeric element and contact are supported to connect, the other end of the second elastomeric element and the breaker
Shell connection, the second elastomeric element can provide reset force and end pressure for the parallel connection pair contact systems；
The third elastomeric element can provide reset force for tripping；
One end of 4th elastomeric element and the hasp face of lock, which are ganged up with, to be connect, the other end and the shell of the 4th elastomeric element
Body limit overlap joint, the 4th elastomeric element can provide reset force for handle and lock.
It is equipped with first rotating shaft hole, the second shaft hole, third shaft hole and the 4th shaft hole in the lock, is equipped in handle
Handle center hole and handle are lateral opening, and first rotating shaft hole and third shaft hole are placed in the lateral opening two sides of handle, the axis in first rotating shaft hole
The axis of the line axis lateral opening with handle and third shaft hole is overlapped；The axis of the axis of second shaft hole and the 4th shaft hole
It is overlapped；Connecting shaft sequentially passes through lateral opening first rotating shaft hole, handle and third shaft hole, connecting shaft and first rotating shaft hole and third turns
Axis hole interference fit, connecting shaft and handle edge interporal lacuna cooperate, and lock can be rotated by axis of the lateral opening center line of handle, and first
First pin of connecting rod is plugged in the second shaft hole and the 4th shaft hole of lock.
The lock is equipped with confined planes, and confined planes can limit first connecting rod and rotate by axis of the first pin of first connecting rod
Range；In gate-dividing state, the axis in first rotating shaft hole is located at the axis of the second pin of handle center hole and first connecting rod
Line lower section, the second pin of first connecting rod abuts with the left end of bar shaped spliced eye；During breaker closing, hand
Handle is rotated by axis of connecting shaft, and the first pin of first connecting rod makes first connecting rod and lock relatively quiet under the limitation of confined planes
Only, line of the axis of the first pin of first connecting rod in the axis in first rotating shaft hole and the axis of the second pin of first connecting rod
Lower section, when handle lateral opening thorny handle centre bore rotation drives lock rotation, when the axis in the first rotating shaft hole of lock rotate to
When the top of the axis line of the second pin of the axis and first connecting rod in handle center hole, the second pin and item of first connecting rod
The right end of shape spliced eye can abut, which can be realized self-locking.
First moving contact and the second moving contact are placed side by side the two sides of contact support in parallel；It is dynamic that locating shaft sequentially passes through first
Location hole, the location hole of contact support and the location hole of the second moving contact of contact；First elastomeric element can be to the first dynamic touching
Head, contact are supported and the second moving contact is fastened, and limit shaft passes through contact supporting hole and the first moving contact confined planes and the outside
The outer confined planes of two moving contacts abut, and limit shaft can limit moving contact and contact support.
First elastomeric element is integral type torsion spring structure, and the first elastomeric element is equipped with the first pin of torsional spring, the
One torsional spring circle, torsional spring second pin and the second torsional spring circle；First torsional spring circle and the second torsional spring circle be respectively placed in the first moving contact and
On the outside of second moving contact, locating shaft is passed through in the first torsional spring circle and the second torsional spring circle, in the first pin of torsional spring and the first moving contact
Confined planes abut in confined planes and the second moving contact, and torsional spring second pin is abutted with the lower limit plane that contact is supported, the first elasticity
Component can be supported to fasten with moving contact to contact.
During breaker closing, before moving contact is contacted with static contact, the double contact systems of the parallel connection connect first
It can be rotated around locating shaft under bar effect；After moving contact and the static contact contact, moving contact can be in locating shaft and static contact
Limitation under stop motion, contact support can continue around that locating shaft rotate and to compress first elastic under the action of first connecting rod
Component, until the operating mechanism closes a floodgate.
The operating mechanism of the breaker is additionally provided with indicator, and the shaft hole of the indicator and the interior shaft hole of tripping are same
Axis is installed on the fixing lug boss of the shell；The indicator is additionally provided with driver slot, and driver slot, instruction are inserted into one end of limit shaft
Part and contact collaborative support.
The tripping face of tripping and the trip arm sliding contact of release lever, release lever can take off in the electromagnetic force or heat of breaker
Drive tripping rotates under the action of detaining power, and the stable triangular state of driving lock and first connecting rod formation makes operating mechanism reality
Now unlock.
The release lever is equipped with shaft hole, the trip arm, thermal tripping hole, limit hole, magnetic the trip arm, interpolar linkage slot and interpolar
Linkage hole；Rotation axis passes through shaft hole, and release lever can be rotated around rotation axis, and the trip arm is abutted with the tripping face of tripping, tripping
Arm can drive tripping to rotate under external force；The first pin and limit hole of second connecting rod are hinged, and the second of second connecting rod
The first slot and the second slot grafting of pin and moving contact；First pin of third connecting rod and thermal tripping hole are hinged, and third connects
The second pin of bar is placed in the side that bimetallic element is bent towards；When breaker is in "on" position, release lever can be
Magnetic the trip arm is pushed by tripping under the action of third elastomeric element, release lever is made to be in opposite free state.
A kind of breaker, the breaker contain the operating mechanism of shell and above-mentioned breaker, locating shaft, fixing axle and
Two elastomeric elements are connected and fixed with the shell.
The utility model has the beneficial effects that：
1, using five-bar mechanism compared with existing four-bar mechanism, there is better stability and reliability, it can be with
Effectively promote the operating mechanism of breaker and the service life of breaker, the tolerance performances such as temperature rise and disjunction.
2, using two independent moving contacts, contact area is increased, contact resistance is reduced.
3, double acting contact and stationary contact point contact are twice current-carrying cross section product compared with the increasing of single-tap head, can effectively reduce breaker
Temperature rise；
4, torsional spring is integral type torsion spring, ensure that double acting contact is balanced with pressure when stationary contact point contact, in limited sky
It is interior to improve the reliability contacted between contact, improve the breaker service life.
5, single stationary contact described in the utility model is to double acting structure of contact terminal, and more existing single action contact is to single stationary contact point structure
Product, can more promote properties of product in the product of big specification electric current, guarantee the reliability of product.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the general illustration of the operating mechanism of breaker described in the utility model.
Fig. 2 is the partial schematic diagram of the operating mechanism of breaker described in the utility model.
Fig. 3 is the hinged schematic diagram of handle and lock in the operating mechanism of breaker described in the utility model.
Fig. 4 is the schematic diagram of unlocking mechanism.
Fig. 5 is the schematic diagram of tripping.
Fig. 6 Fig. 7 is the schematic diagram of release lever.
Fig. 8 is the hinged schematic diagram that first connecting rod and contact are supported.
Fig. 9 is the general illustration of contact support and moving contact.
Figure 10 is that contact is supported and the hinged schematic diagram of moving contact.
Figure 11 is the schematic diagram of handle.
Figure 12 is the schematic diagram of lock.
Figure 13 is the schematic diagram of first connecting rod.
Figure 14 is the schematic diagram that contact is supported.
Figure 15 is the schematic diagram of the first elastomeric element.
Figure 16 is the front-view schematic diagram of moving contact.
Figure 17 is the schematic side view of moving contact.
Figure 18 is the schematic diagram of second connecting rod.
Figure 19 is the schematic diagram of third connecting rod.
Figure 20 is the schematic diagram that rock-steady structure is formed after operating mechanism closes a floodgate.
Figure 21 is the schematic diagram that rock-steady structure is formed after operating mechanism is opened a sluice gate.
Figure 22 is the structural schematic diagram of indicator.
1, handle；2, it latches；4, contact is supported；6, moving contact；8, sleeve；9, indicator；10, tripping；12, release lever；
111, handle is lateral opening；112, handle center hole；
21, the first side wall；22, second sidewall；23, confined planes；24, tripping face；25, hasp face hooks；
211, first rotating shaft hole；221, the second shaft hole；212, third shaft hole；222, the 4th shaft hole；
31, first connecting rod；32, second connecting rod；33, third connecting rod；
311, the first pin of first connecting rod；312, the second pin of first connecting rod；
321, the first pin of second connecting rod；322, the second pin of second connecting rod；
331, the first pin of third connecting rod；332, the second pin of third connecting rod；
41, bar shaped spliced eye；42, lateral confinement plane；43, lower limit plane；44, it links up with；45, location hole；46, contact is supported
Hole；
411, the right end of bar shaped spliced eye；412, the left end of bar shaped spliced eye；
51, the first elastomeric element；52, the second elastomeric element；53, third elastomeric element；54, the 4th elastomeric element；
511, the first pin of torsional spring；512, torsional spring second pin；513, the first torsional spring circle；514, the second torsional spring circle；
61, the first moving contact；62, the second moving contact；
611, location hole；Confined planes in 612a, the first moving contact；The outer confined planes of 612b, the first moving contact；613, the first slot
Hole；
621, location hole；Confined planes in 622a, the second moving contact；The outer confined planes of 622b, the second moving contact；623, the second slot
Hole；
71, connecting shaft；72, limit shaft；73, locating shaft；74, fixing axle；75, rotation axis；
101, interior shaft hole；102, tripping face；103, tripping face；104, torsional spring lower limit plane；105, torsional spring upper limit plane；
121, shaft hole；122, the trip arm；123, thermal tripping hole；124, limit hole；125, magnetic the trip arm；126, interpolar
Link slot；127, interpolar linkage hole.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of operating mechanism of breaker, including handle 1, lock 2, first connecting rod 31, contact support 4, moving contact 6 and the
Two elastomeric elements 52 are inserted with fixing axle 74 in handle 1, and handle 1 can be axis rotation with fixing axle 74, and handle 1 and lock 2 are logical
It is hinged to cross connecting shaft 71, first connecting rod 31 contains the first pin 311 of first connecting rod and the second pin 312 of first connecting rod, lock
Button 2 is hinged by the first pin 311 of first connecting rod with first connecting rod 31, and the second pin 312 of first connecting rod is plugged in contact
Support in 4 spliced eye 41, contact supports that 4 is hinged by locating shaft 73 with moving contact 6, contact support 4 and moving contact 6 can be with
Locating shaft 73 is axis synchronous rotation, and the second elastomeric element 52 can be provided from "on" position to gate-dividing state to moving contact 6 and be converted
Driving force, the axis of fixing axle 74, the axis of connecting shaft 71, first connecting rod the first pin 311 axis, first connecting rod
The axis of second pin 312 and the axis of locating shaft 73 be parallel to each other, in "on" position, the first pin of first connecting rod
311 axis is located at the out-of-plane downside where the axis of connecting shaft 71 and the axis of the second pin 312 of first connecting rod；
In gate-dividing state, the axis of the first pin 311 of first connecting rod is located at the axis of connecting shaft 71 and the second of first connecting rod is drawn
Out-of-plane upside where the axis of foot 312, as shown in Figure 1, Figure 2 and shown in Figure 19 Figure 20.
The operating mechanism of the breaker uses five-bar mechanism, handle 1, lock 2, first connecting rod 31, the double touchings of the parallel connection
Head system and shell form five-bar mechanism, the tripping 10 independently of the five-bar mechanism outside.In "on" position, first connects
The corresponding hinge joint b of axis, the axis hinge joint a of connecting shaft 71 and the second pin of first connecting rod of first pin 311 of bar
312 axis hinge joint c forms triangle and stablizes self-locking mechanism, in gate-dividing state, the axis of the first pin 311 of first connecting rod
The axis hinge joint c of the second pin 312 of the corresponding hinge joint b of line, the axis hinge joint a of connecting shaft 71 and first connecting rod also can
It enough forms triangle and stablizes self-locking mechanism, so as to effectively prevent slide fastener risk, there is better stability and reliability,
The operating mechanism of breaker and the service life of breaker, the tolerance performances such as temperature rise and disjunction can effectively be promoted.Wherein A is indicated
Be the distance between hinge joint b to hinge joint a and hinge joint c line.
In the present embodiment, lock 2 contains the first side wall 21 and second sidewall 22, and the first side wall 21 and second sidewall 22 are logical
It crosses crossbeam to be connected and fixed, for handle 1 between the first side wall 21 and second sidewall 22, the first side wall 21 is equipped with first rotating shaft
Hole 211 and the second shaft hole 221, second sidewall 22 be equipped with third shaft hole 212 and the 4th shaft hole 222, connecting shaft 71 with
212 grafting of first rotating shaft hole 211 and third shaft hole, the first pin 311 and the second shaft hole 221 of first connecting rod and the 4th turn
222 grafting of axis hole, as shown in Figures 1 to 4.
In the present embodiment, connecting shaft 71 and 1 clearance fit of handle, connecting shaft 71 and first rotating shaft hole 211 and third turn
Axis hole 212 is interference fit, and one end of the first side wall 21 is equipped with confined planes 23, and first connecting rod 31 can be with the of first connecting rod
One pin 311 is axis rotation, and confined planes 23 can limit first connecting rod 31 with the first pin 311 of first connecting rod as axis rotation
Range, i.e., as shown in figure 19, after the second pin 312 of first connecting rod is contacted with confined planes 23, first connecting rod 31 will no longer can
It enough rotates counterclockwise and can only rotate clockwise, the second shaft hole 221 is between first rotating shaft hole 211 and confined planes 23.Lock
The confined planes 23 of button 2 play the role of limiting during breaker closing the second pin 312 of first connecting rod, and mechanism is allowed to be formed
Stable triangular structure.
Specifically, handle 1 contains handle lateral opening 111 and handle center hole 112, fixing axle 74 passes through handle lateral opening 111 will
Handle 1 is fixed on the shell of breaker, and handle 1 can be with fixing axle 74 for the smooth rotation of axis.Connecting shaft 71 is plugged in handle
In centre bore 112, connecting shaft 71 and 112 clearance fit of handle center hole, lock 2 are articulated with the two sides of handle 1, while latching 2
It can be freely rotated by connecting shaft 71 around the axis of handle lateral opening 111, and connecting shaft 71 will not fall off.The hasp face of lock 2
25 are hooked to install the 4th elastomeric element 54 (such as handle spring), by the effect of the 4th elastomeric element 54, is unlocked in breaker
Handle 1, lock 2 and first connecting rod 31 are pulled after tripping and resetted, as shown in Fig. 3, Figure 11, Figure 12, the 4th elastomeric element
54 one end hooks 25 with the hasp face of lock 2 and connect.The second pin 312 of first connecting rod passes through the spliced eye 41 that contact supports 4
, spliced eye 41 is the camber line structure of bar shaped, and as shown in figure 13, and the second pin 312 of first connecting rod remains at
The right end 411 of spliced eye is to the activity within the scope of this of the left end of spliced eye 412, composition sliding connection.
In the present embodiment, moving contact 6 contains the first moving contact 61 and the second moving contact 62, the first moving contact 61 and the
Two moving contacts 62 are arranged side by side, and the first moving contact 61 is identical with the structure of the second moving contact 62 and mirror image, contact support 4 each other
Between the first moving contact 61 and the second moving contact 62, locating shaft 73 sequentially passes through the first moving contact 61, contact supports 4 and second
Moving contact 62, the operating mechanism also contain the first elastomeric element 51, and the first elastomeric element 51 can make the first moving contact 61, contact
Support 4 and the second moving contact 62 are axis synchronous rotation with locating shaft 73.
In the present embodiment, the first moving contact 61 and the second moving contact 62 are state in parallel, concordantly side by side in contact branch
4 two sides are held, the first elastomeric element 51 is torsional spring, and the first elastomeric element 51 contains sequentially connected the first pin of torsional spring 511, first
Torsional spring circle 513, torsional spring second pin 512 and the second torsional spring circle 514, the first moving contact 61 and the second moving contact 62 are located at first and turn round
Between spring coil 513 and the second torsional spring circle 514, the both ends of locating shaft 73 are plugged in the first torsional spring circle 513 and the second torsional spring circle respectively
In 514, the first pin of torsional spring 511 is abutted with the first moving contact 61 and the second moving contact 62, and the second torsional spring circle 514 is supported with contact
4 abut, as shown in Fig. 7, Fig. 8, Fig. 9, Figure 13 and Figure 14.
In the present embodiment, contact supports 4 to be plugged with limit shaft 72, and the axis of limit shaft 72 and the axis of locating shaft 73 are flat
Row, limit shaft 72 are abutted with the first moving contact 61 and the second moving contact 62, and limit shaft 72 can cooperate with the first elastomeric element 51
Make the first moving contact 61, contact support 4 and the second moving contact 62 with 73 axis of locating shaft synchronous rotation.Contact supports 4 sections
Movement travel provide the excess of stroke for mechanism, the boil down to mechanism of 51 this section of the first elastomeric element provides certain end pressure, mechanism
After unlock, the separating rate of moving contact 6 Yu static contact is can be improved in the compression of 51 this section of the first elastomeric element.
In the present embodiment, the second elastomeric element 52 is spring, which is in tensional state always, which can begin
The power rotated in the counterclockwise direction is provided to contact shown in FIG. 1 support 4 and moving contact 6 eventually, the second elastomeric element 52 passes through touching
Head supports 4 to provide the driving force to the first moving contact 61 and the second moving contact 62, and the driving force is pulling force, the second elastic portion
One end of part 52 supports that 4 are connected and fixed with contact, and the other end of the second elastomeric element 52 and the shell of breaker are connected and fixed；?
During converting from gate-dividing state to "on" position, the second elastomeric element 52 supports 4 pulling force to be gradually increased contact；?
During converting from "on" position to gate-dividing state, the second elastomeric element 52 supports 4 pulling force to be gradually reduced contact.
Specifically, contact supports the contact supporting hole 46 on 4 to use as shown in Fig. 8, Figure 13, Figure 14, Figure 15, Figure 16, Figure 22
Limit shaft 72, the confined planes of the confined planes 612b and the second moving contact 62 of limit shaft 72 and the first moving contact 61 are installed in grafting
622b is abutted simultaneously, on the one hand is used to limit the rotation of the first moving contact 61 and the second moving contact 62, is guaranteed its synchronism, and can
So that the first moving contact 61 and the second moving contact 62 have the tendency that rotation relative to limit shaft 72.It on the other hand is also breaker
The driving force source that indicator 9 rotates, indicator 9 and limit shaft 72 are interference fitted, when the first moving contact 61 and the second moving contact
When 62 rotation, limit shaft 72 can drive indicator 9 to rotate synchronously.Contact supports 4 lower limit plane 43 and torsional spring second pin
512 abut, for limiting the slewing area of torsional spring second pin 512.
Contact supports the hook 44 on 4 to be used to install the second elastomeric element 52 (tension spring or cylindrical spring), the second elastic portion
One end of part 52 and hook 44 are fixed, and the other end of the second elastomeric element 52 and the shell hook joint of breaker are fixed.When the operation
During converting from gate-dividing state to "on" position, the second elastomeric element 52 is stretched, 52 institute of the second elastomeric element for mechanism
The pulling force of generation has influenced the mechanism switching force of breaker.When breaker automatically jumping, the second elastomeric element 52 can also
Influence the opening velocity of breaker mechanism.
Contact supports 4 lateral confinement plane 42, another confined planes 612a of the first moving contact 61 and the second moving contact 62
Another confined planes 622a is abutted with the first pin of torsional spring 511, for limiting the slewing area of the first pin of torsional spring 511.The
The second slot 623 on the first slot 613 and the second moving contact 62 on one moving contact 61 is for placing the second of second connecting rod
The second pin 322 of pin 322, second connecting rod can be on the first slot 613 and the second moving contact 62 on the first moving contact 61
The second slot 623 in sliding.The limit hole 124 of the first pin 321 and release lever 12 of second connecting rod is hinged, realizes interpolar
Link the purpose threaded off.
First elastomeric element 51 is integral type torsion spring structure, the first torsional spring circle 513 and second of the first elastomeric element 51
Torsional spring circle 514 and contact support the location hole of 4 location hole 45, the location hole 611 of the first moving contact 61, the second moving contact 62
621, sleeve 8 and locating shaft 73 are axle center cooperations, and sleeve 8 is sheathed between locating shaft 73 and moving contact 6, the first torsional spring circle 513
First moving contact 61, the second moving contact 62 and contact support 4 is clipped in the middle with the second torsional spring circle 514, then the first elastic portion
Part 51 (torsion spring) needs to reverse to form certain torsion during installation, without loose after making above-mentioned several parts compress limit.?
When installing the first elastomeric element 51, contact supports 4 lower limit plane 43 and the confined planes 612a and second of the first moving contact 61 to move
The confined planes 622b collective effect of contact 62 squeezes the first pin of torsional spring 511 and torsional spring second pin of the first elastomeric element 51
512, form the first pin of torsional spring 511 of the first elastomeric element 51 (integral type torsion spring) and the torsion of torsional spring second pin 512
When torsion, the stress of the first torsional spring circle 513 and the second torsional spring circle 514 first acts on sleeve 8 and acts on locating shaft 73, finally
Reach the shell of breaker.
In the present embodiment, the operating mechanism of the breaker further includes release lever 12, rotation axis 75, second connecting rod 32
With third connecting rod 33, rotation axis 75 is plugged in release lever 12, and the axis of rotation axis 75 is parallel with the axis of locating shaft 73, release lever
12 contain the trip arm 122, and when release lever 12 is that axis rotates with locating shaft 73, the trip arm 122 can drive the limit of lock 2
Face 23 is rotated to the direction of the first pin 311 far from first connecting rod, so that the second elastomeric element 52 be enable to drive contact branch
Hold 4 and moving contact 6 from "on" position to gate-dividing state rotate synchronously.
The release lever 12 is equipped with shaft hole 121, the trip arm 122, thermal tripping hole 123, limit hole 124, magnetic the trip arm
125, interpolar linkage slot 126 and interpolar linkage hole 127；Rotation axis 75 passes through shaft hole 121, and release lever 12 can be around rotation axis
75 rotations, the trip arm 122 are abutted with the tripping face 103 of tripping 10, and the trip arm 122 can drive 10 turns of tripping under external force
It is dynamic；The first pin 321 and limit hole 124 of second connecting rod are hinged, the second pin 322 of second connecting rod and the first of moving contact 6
623 grafting of slot 613 and the second slot；First pin 331 of third connecting rod and thermal tripping hole 123 are hinged, and the of third connecting rod
Two pins 332 are placed in the side that bimetallic element is bent towards；When breaker is in "on" position, release lever 12 can be
Magnetic the trip arm 125 is pushed by tripping 10 under the action of three elastomeric elements 53, release lever 12 is made to be in opposite free state；When disconnected
When road device switchs to gate-dividing state from "on" position, by electromagnetic system active force magnetic the trip arm 125 or by thermal tripping power through third
Connecting rod 33 acts on thermal tripping hole 123, drives the unlock of 10 driving mechanism of tripping；Then by moving contact 6 in the second elastomeric element 52
Release lever 12 is pulled through second connecting rod 32 under active force, ensures and cooperates with linkage between multipole product.
In the present embodiment, the operating mechanism of the breaker further includes tripping 10, and one end of second sidewall 22 is equipped with convex
Tripping face out 24, the 4th shaft hole 222 are located between third shaft hole 212 and tripping face 24, and tripping 10 is located at the trip arm
Between 122 and tripping face 24, tripping 10 is in contact simultaneously (using being slidably connected) with the trip arm 122 and tripping face 24, tripping 10
Can be with the 6th shaft (not regarded in figure) as axis rotation, the axis of the 6th shaft is parallel with the axis of locating shaft 73, tripping 10
The third elastomeric element 53 (such as torsional spring) of restoring force can be provided to tripping 10 by being connected with, and the trip arm 122 can pass through tripping 10
Rotation come drive lock 2 confined planes 23 to far from first connecting rod the first pin 311 direction rotate.
Specifically, the shaft hole 121 of release lever 12 and 75 axle center of rotation axis cooperate as shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6, take off
Button bar 12 can be axis rotation with rotation axis 75, and rotation axis 75 and the shell of breaker are connected and fixed.The trip arm of release lever 12
122 cooperate with 103 sliding friction of tripping face of tripping 10, and when release lever 12 is that axis rotates with rotation axis 75, the trip arm 122 is pushed away
Dynamic tripping 10 rotates together.The hasp face of tripping mechanism described in the utility model is the arc surface characterisation contact of circular arc and lock
Overlap joint, unlock tripping form are cambered surface rolling friction, can effectively reduce mechanical unlocking power.It can effectively be promoted by above-mentioned measure
The performances such as service life, temperature rise, the disjunction of breaker.Tripping 10 contains interior shaft hole 101, tripping face 102, tripping face 103, torsional spring
Lower limit plane 104 and torsional spring upper limit plane 105.
Second connecting rod 32 contains the first pin 321 of second connecting rod and the second pin 322 of second connecting rod, third connecting rod 33
The second pin 332 of the first pin 331 and third connecting rod containing third connecting rod.One of limit hole 124 of release lever 12
It is hinged with the first pin 321 of second connecting rod.Another thermal tripping hole 123 of release lever 12 and the first pin of third connecting rod
331 is hinged.The second pin 322 of second connecting rod is installed in the first slot 613 and the second moving contact on the first moving contact 61
In the second slot 623 on 62, the second pin 322 of second connecting rod smooth can be slided.The tripping face 102 of tripping 10 and lock
2 24 sliding friction of tripping face cooperation.When the tripping face of tripping 10 103 is driven and sends out by the trip arm 122 of release lever 12
When raw deflection, with the tripping face 24 of lock 2 sliding friction will occur for the tripping face 102 of tripping 10, drive lock 2 around connection
Axis 71 rotates, so that the confined planes 23 of lock 2 be made to leave the second pin 312. of first connecting rod
F1 indicates the power that driving release lever 12 rotates in Fig. 4, and F2 indicates the power that release lever 12 drives tripping 10 to rotate, F3
Indicate the power of 2 rotation of the driving of tripping 10 lock, F4 indicates the reaction force of 31 pairs of first connecting rod locks 2.It is closed when breaker is in
When lock state, the rock-steady structure before operating mechanism is destroyed by tripping 10, unlocks mechanism, and last breaker is in separating brake shape
State.Operating mechanism divide-shut brake is participated in without tripping 10, and only when breaker occurs overcurrent protection and threads off, tripping is just acted
Achieve the purpose that unlocking mechanism, lock 2 is connected with overload protecting mechanism, and when overcurrent occurs, overload protecting mechanism will be to taking off
Button bar 12 provides power F1.In addition, third elastomeric element 53 (torsional spring) is installed in the back side of tripping 10, rotated for tripping 10
After reset.
The course of work of the operating mechanism of the breaker is described below：
When the operating mechanism of the breaker is in "on" position, as shown in Fig. 1 to Figure 21, at this point, the of first connecting rod
The corresponding hinge joint b of the axis of one pin 311 is located at the axis hinge joint a of connecting shaft 71 and the second pin 312 of first connecting rod
Axis hinge joint c line lower section.The second pin 312 and contact of first connecting rod support the right end 411 of 4 spliced eye real
The second pin 312 of existing extrusion fit, first connecting rod supports 4 to provide the torque rotated clockwise, the second elastomeric element to contact
52 support 4 to provide the torque rotated counterclockwise to contact, and above-mentioned two torque is equal, which is in equilibrium state, touching
Head supports 4 and extreme position of the moving contact 6 in combined floodgate.
When the operating mechanism of the breaker is from "on" position to gate-dividing state, as shown in figure 21, handle 1 is rotated clockwise
When, handle 1 drives lock 2 to be moved to the left, and 2 drive first connecting rod 31 of lock is moved to the left, and latching 2 confined planes 23 can limit
The second pin 312 of first connecting rod moves, and rotates clockwise at this point, the second pin 312 of first connecting rod supports 4 to provide to contact
Torque support 4 to provide the torque that rotates counterclockwise to contact less than the second elastomeric element 52, contact support 4 and moving contact 6 exist
It will synchronize and rotate counterclockwise under the action of second elastomeric element 52, until the operating mechanism of the breaker is in gate-dividing state.This
When, the axis hinge joint a and first that the corresponding hinge joint b of axis of the first pin 311 of first connecting rod is located at connecting shaft 71 connects
The top of the line of the axis hinge joint c of the second pin 312 of bar, contact support 4 and moving contact 6 are in the limit position of separating brake
It sets.Moving contact 6 and static contact disconnect, and each component returns to the preparation state closed a floodgate next time.
A kind of breaker is described below, which contains the operating mechanism of shell and above-mentioned breaker, fixing axle
74, locating shaft 73, rotation axis 75 are connected and fixed with the shell, and end and shell of the second elastomeric element 52 are connected and fixed.
The "on" position of operating mechanism of "on" position and breaker of the breaker is corresponding, the gate-dividing state of the breaker and open circuit
The gate-dividing state of the operating mechanism of device is corresponding.
The utility model has the beneficial effects that：
1, using five-bar mechanism compared with existing four-bar mechanism, there is better stability and reliability, it can be with
Effectively promote the operating mechanism of breaker and the service life of breaker, the tolerance performances such as temperature rise and disjunction.
2, two moving contacts, and being total to by components such as sleeve, locating shaft, limit shaft, contact support, torsional springs are provided with
It is whole to become a fixed component for same-action.
Wherein moving contact is aligned by the location hole progress axle center supported with contact, and is distributed in contact and is supported two sides.By
Then the contact area between dynamic/static contact is changed to described in the utility model double by original one-to-one contact of single contact
Contact increases the contact area between dynamic/static contact to the Multi-contact of static contact, to increase the heat dissipation table of moving contact
The sectional area of area and current flowing also reduces the internal resistance of whole system.
Scheme described in the utility model can be effectively improved product temperature rise；It reduces dynamic/static contact abrasion and reduces electric arc and burn
The negative effect to contact such as burning, may finally improve service life and the breaking capacity of product；
3, torsional spring is integral type torsion spring, and two torsional spring circles are respectively placed in two outsides of two moving contacts, two dynamic touchings
Head and a contact support clip are between torsion spring circle.Torsional spring circle has simultaneously been supported by location hole, sleeve and moving contact and contact
It is aligned and cooperates at axle center.
Pressure when ensure that two contacts are contacted with contact in structure is balanced, makes to contact relatively reliable.
4, mentioned by the utility model to handle add the structure of double link cooperation contact supporting assembly profession, it is de- after combined floodgate
The triangle formed between buckle assembly stablizes self-locking mechanism, can effectively avoid slide fastener risk.
5, the support of the utility model contact, contact, torsional spring are metalwork, simple and compact for structure, easy processing, thermal stability
More preferably.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical solution
Between, between technical solution and technical solution use can be freely combined.
Claims (10)
1. a kind of operating mechanism of breaker, including handle (1), lock (2), first connecting rod (31), contact support (4), first
Elastomeric element (51), the second elastomeric element (52), third elastomeric element (53) and the 4th elastomeric element (54), connect moving contact (6)
Spindle (71), limit shaft (72), locating shaft (73), fixing axle (74), tripping (10), release lever (12)；It is characterized in that：
The handle (1) and lock (2) are hinged by connecting shaft (71)；
The moving contact (6) contains the first moving contact (61) and the second moving contact (62), and the contact supports (4) and moving contact
(6) double contact systems in parallel are formed by locating shaft (73), limit shaft (72) and the first elastomeric element (51) connection；
The lock (2) supports (4) to connect by two pins of first connecting rod (31) with contact, the first pin of first connecting rod
(311) hingedly with lock (2), the second pin (312) of first connecting rod is plugged in the bar shaped spliced eye (41) that contact supports (4)
It is interior；
Handle (1), the shell for latching (2), first connecting rod (31), the double contact systems of the parallel connection and breaker can make up five connecting rods
Mechanism；
The tripping (10) is equipped with tripping face (102) and tripping face (103), tripping face (102) and the lock (2) of tripping (10)
It tripping face (24) being capable of sliding contact cooperation；
One end of second elastomeric element (52) supports (4) to connect with contact, the other end of the second elastomeric element (52) and institute
The shell connection of breaker is stated, the second elastomeric element (52) can provide reset force and end pressure for the double contact systems of the parallel connection；
The third elastomeric element (53) can provide reset force for tripping (10)；
One end of 4th elastomeric element (54) and the hasp face of lock (2) hook (25) overlap joint, the 4th elastomeric element (54)
The other end and shell limit overlap, and the 4th elastomeric element (54) can provide reset force for handle (1) and lock (2).
2. the operating mechanism of breaker according to claim 1, which is characterized in that be equipped with first rotating shaft in the lock (2)
Hole (211), the second shaft hole (221), third shaft hole (212) and the 4th shaft hole (222), handle (1) is interior to be equipped in handle
Heart hole (112) and handle are lateral opening (111), and first rotating shaft hole (211) and third shaft hole (212) are placed in handle lateral opening (111)
The axis of two sides, first rotating shaft hole (211) is overlapped with the axis of the axis of handle lateral opening (111) and third shaft hole (212)；
The axis of the axis of second shaft hole (221) and the 4th shaft hole (222) is overlapped；Connecting shaft (71) sequentially passes through first rotating shaft hole
(211), handle lateral opening (111) and third shaft hole (212), connecting shaft (71) and first rotating shaft hole (211) and third shaft hole
(212) it is interference fitted, connecting shaft (71) and lateral opening (111) clearance fit of handle, lock (2) are capable of (111) lateral opening with handle
Center line be axis rotation, the first pin (311) of first connecting rod be plugged in lock (2) the second shaft hole (221) and the 4th turn
Axis hole (222).
3. the operating mechanism of breaker according to claim 2, which is characterized in that the lock (2) is equipped with confined planes (23),
Confined planes (23) can limit range of the first connecting rod (31) with the first pin (311) of first connecting rod for axis rotation；In separating brake
When state, the axis of first rotating shaft hole (211) is located at the axis of the second pin (312) of handle center hole (112) and first connecting rod
The lower section of the line of line, the second pin (312) of first connecting rod are abutted with the left end (412) of bar shaped spliced eye；It is closed in breaker
During lock, handle (1) is axis rotation with connecting shaft (71), and the first pin (311) of first connecting rod is in confined planes (23)
Make first connecting rod (31) and lock (2) opposing stationary under limitation, the axis of the first pin (311) of first connecting rod is in first rotating shaft
The lower section of the line of the axis of the second pin (312) of the axis and first connecting rod in hole (211), handle lateral opening (111) is around handle
Lock (2) rotation is driven when centre bore (112) rotates, when the axis in the first rotating shaft hole (211) of lock (2) is rotated into handle
When the top of the axis line of the second pin (312) of the axis and first connecting rod in heart hole (112), the second pin of first connecting rod
(312) it can be abutted with the right end of bar shaped spliced eye (411), which can be realized self-locking.
4. the operating mechanism of breaker according to claim 1, which is characterized in that the first moving contact (61) and the second moving contact
(62) it is placed side by side the two sides that contact supports (4) in parallel；Locating shaft (73) sequentially passes through the location hole of the first moving contact (61)
(611), contact supports the location hole (45) of (4) and the location hole (621) of the second moving contact (62)；First elastomeric element (51) energy
Enough to support (4) and the second moving contact (62) to fasten the first moving contact (61), contact, limit shaft (72) passes through contact support
Hole (46) is abutted with the outer confined planes (612b) of the first moving contact and the outer confined planes (622b) of the second moving contact, and limit shaft (72) can
(4) are supported to limit moving contact (6) and contact.
5. the operating mechanism of breaker according to claim 4, which is characterized in that first elastomeric element (51) is
Integral type torsion spring structure, the first elastomeric element (51) are equipped with the first pin of torsional spring (511), the first torsional spring circle (513), torsional spring the
Two pins (512) and the second torsional spring circle (514)；First torsional spring circle (513) and the second torsional spring circle (514) are respectively placed in the first dynamic touching
On the outside of head (61) and the second moving contact (62), locating shaft (73) is passed through in the first torsional spring circle (513) and the second torsional spring circle (514),
The first pin of torsional spring (511) is abutted with confined planes (622a) in confined planes (612a) in the first moving contact and the second moving contact, is turned round
Spring second pin (512) supports the lower limit plane (43) of (4) to abut with contact, and the first elastomeric element (51) can support contact
(4) it is fastened with moving contact (6).
6. the operating mechanism of breaker according to claim 1, which is characterized in that during breaker closing, when dynamic
Before contact (6) is contacted with static contact, the double contact systems of the parallel connection can turn under first connecting rod (31) effect around locating shaft (73)
It is dynamic；After moving contact (6) and the static contact contact, moving contact (6) can stop under the limitation of locating shaft (73) and static contact
Movement, contact support (4) can continue around locating shaft (73) under the action of first connecting rod (31) and rotate and compress the first elasticity
Component (51), until the operating mechanism closes a floodgate.
7. the according to claim 1, operating mechanism of the breaker of 4,5 or 6, which is characterized in that the operation machine of the breaker
Structure is additionally provided with indicator (9), and the shaft hole (901) of the indicator (9) is co-axially mounted with the interior shaft hole (101) of tripping (10)
In the fixing lug boss of the shell；The indicator (9) is additionally provided with driver slot (902), and driving is inserted into one end of limit shaft (72)
Slot (902), indicator (9) support (4) can link with contact.
8. the operating mechanism of breaker according to claim 7, which is characterized in that the tripping face (103) of tripping (10) and de-
The trip arm (122) sliding contact of button bar (12), release lever (12) can be in the effects of the electromagnetic force or thermal tripping power of breaker
Lower drive tripping (10) rotation, the stable triangular state that driving lock (2) and first connecting rod (31) is formed keep the operating mechanism real
Now unlock.
9. the operating mechanism of breaker according to claim 7, which is characterized in that the release lever (12) is equipped with shaft hole
(121), the trip arm (122), thermal tripping hole (123), limit hole (124), magnetic the trip arm (125), interpolar linkage slot (126) and pole
Between link hole (127)；Rotation axis (75) passes through the shaft hole (121) of release lever (12), and release lever (12) can be around rotation axis
(75) it rotates, the trip arm (122) abuts with the tripping face (103) of tripping (10), and the trip arm (122) being capable of band under external force
Dynamic tripping (10) rotation；The first pin (321) of second connecting rod and limit hole (124) hingedly, the second pin of second connecting rod
(322) with first slot (613) of moving contact (6) and the second slot (623) grafting；The first pin (331) of third connecting rod with
Hingedly, the second pin (332) of third connecting rod is placed in the side that bimetallic element is bent towards in thermal tripping hole (123)；Work as open circuit
When device is in "on" position, it is de- that release lever (12) can push magnetic by tripping (10) under the action of third elastomeric element (53)
Buckle arm (125) makes release lever (12) to be in opposite free state.
10. a kind of breaker, which is characterized in that the breaker contains the operation machine of shell and breaker described in claim 1
Structure, locating shaft (73), fixing axle (74) and the second elastomeric element (52) are connected and fixed with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648997.5U CN208157335U (en) | 2018-05-03 | 2018-05-03 | A kind of operating mechanism and breaker of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648997.5U CN208157335U (en) | 2018-05-03 | 2018-05-03 | A kind of operating mechanism and breaker of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208157335U true CN208157335U (en) | 2018-11-27 |
Family
ID=64377563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820648997.5U Withdrawn - After Issue CN208157335U (en) | 2018-05-03 | 2018-05-03 | A kind of operating mechanism and breaker of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208157335U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
| CN111463081A (en) * | 2020-03-31 | 2020-07-28 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker locking and tripping system and method |
| CN112071710A (en) * | 2019-06-11 | 2020-12-11 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
| CN112701013A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Switch device |
| EP4089709A4 (en) * | 2021-03-31 | 2023-10-18 | Etman Electric (Changzhou) Co., Ltd. | Operating mechanism of 2p2 modulus electromagnetic residual current circuit breaker with overcurrent protection |
-
2018
- 2018-05-03 CN CN201820648997.5U patent/CN208157335U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
| CN108417459B (en) * | 2018-05-03 | 2023-10-31 | 首瑞（天津）电气设备有限公司 | Operating mechanism of circuit breaker and circuit breaker |
| CN112071710A (en) * | 2019-06-11 | 2020-12-11 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
| CN112071710B (en) * | 2019-06-11 | 2022-11-08 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
| CN112701013A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Switch device |
| CN112701013B (en) * | 2019-10-23 | 2023-12-22 | 北京京人电器有限公司 | Switching device |
| CN111463081A (en) * | 2020-03-31 | 2020-07-28 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker locking and tripping system and method |
| EP4089709A4 (en) * | 2021-03-31 | 2023-10-18 | Etman Electric (Changzhou) Co., Ltd. | Operating mechanism of 2p2 modulus electromagnetic residual current circuit breaker with overcurrent protection |
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