CN107180732A - The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker - Google Patents
The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN107180732A CN107180732A CN201710570368.5A CN201710570368A CN107180732A CN 107180732 A CN107180732 A CN 107180732A CN 201710570368 A CN201710570368 A CN 201710570368A CN 107180732 A CN107180732 A CN 107180732A
- Authority
- CN
- China
- Prior art keywords
- moving contact
- elastic component
- support
- positioning seat
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- 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
Landscapes
- Breakers (AREA)
Abstract
The invention provides a kind of movable contacting device of low-voltage circuit breaker and low-voltage circuit breaker, movable contacting device includes axle and the first positioning seat, the first elastic component, the first moving contact, support, the second moving contact, the second elastic component and the second positioning seat that are set on axle and are arranged in order along the axial direction of axle, first elastic component contact is between the first positioning seat and the first moving contact, and the moving contact of ejection first is contacted with support, second elastic component contact is between the second positioning seat and the second moving contact, and the moving contact of ejection second is contacted with support.The movable contacting device and low-voltage circuit breaker of the low-voltage circuit breaker of the present invention can be after the generations of failure high current, increase contact between the first moving contact and support and the second moving contact and support, it is ensured that the stability of the contact resistance of movable contacting device in the case of failure high current.
Description
Technical field
The present invention relates to low-voltage circuit breaker technical field, the movable contacting device and low pressure of especially a kind of low-voltage circuit breaker
Breaker.
Background technology
The movable contacting device of low-voltage circuit breaker need to not only ensure the stability of contact resistance in normal operation of circuit breaker,
And the stability of contact resistance is also should ensure that in fault current, i.e., in big fault current, moving contact part can not be with
The support electrically connected denounce out because of electric power, while should ensure that moving contact part motion is flexible, should not contact work
There is clamping stagnation under.
Fig. 1 is the movable contacting device 1 of the first prior art, and it mainly includes two panels moving contact 11, support 12, axle 14
And the spring 13 between two moving contacts 11, moving contact 11 is connected on support 12 by axle 14, and moving contact 11 is in support
It can relatively rotate, spring 13 makes have contact between moving contact 11 and support 12 between acting on two moving contacts 11, scheme on 12
Direction identical electric current I1, I2 are respectively flowed through on middle two panels moving contact 11, the electric power difference produced on two panels moving contact 11
For F1, F2, F1, F2 are a pair of suction equal in magnitude, in opposite direction, the power difference that spring 13 is acted on two panels moving contact 11
For F3, F4, F3, F4 are a pair of tension force equal in magnitude, in opposite direction.
The defect that the movable contacting device 1 of the first prior art is present is：Electric current I1, I2's between two moving contacts 11
Flow to identical, electric power F1, F2 that electric current is produced shows as mutual attractive force, after big fault current is produced, fault current
Electric power F1, F2 be possible to, more than the directed force F 3 of spring 13, F4, reduce the contact between moving contact 11 and support 12
Even disappear, influence the stability of contact resistance.
Fig. 2 is the movable contacting device 2 of second of prior art, and it includes first support 23, second support 24, first and moved
Contact 26, the second moving contact 27, spring 21, spring base 22 and axle 28, the first moving contact 26 and the second moving contact 27 pass through axle 28
It is rotatable respectively to be embedded in the groove 231 of first support 23 and the groove 241 of second support 24, first support 23 and second support
(as shown in Figure 3), the pressure of spring 21 in the groove 251 of rotating shaft 25 are integrally embedded in after 24 outside difference shock mount 21 and spring base 22
Power acts on the outside of first support 23 and second support 24, makes between the moving contact 26 of first support 23 and first and second
There is contact between the moving contact 27 of support 24 and second.
The defect that the movable contacting device 2 of second of prior art is present is：The pressure of spring 21 acts on first support
23 and the outside of second support 24, because there is certain rigidity, and first support 23 and in first support 23 and second support 24
There is fit-up gap between one moving contact 26, between the moving contact 27 of second support 24 and second, the active force of spring 21 must be first
Overcome first support 23, second support 24 because fit-up gap produces the reaction force that is formed after micro-strain, first support 23 with
Just there is contact between first moving contact 26, between the moving contact 27 of second support 24 and second, because of first support 23 and second
The presence of the reaction force of support 24, makes between the moving contact 26 of first support 23 and first and second support 24 and second is dynamic touches
Contact between first 27 is unstable, influences the stability of contact resistance；
Further, since the groove 231 of first support 23 and the groove 241 of second support 24 because exist mismachining tolerance make groove 231,
The side wall on 241 both sides is not parallel, and between the moving contact 26 of groove 231 and first, between the moving contact 27 of groove 241 and second exist match somebody with somebody
Gap is closed, causes having between the moving contact 26 of first support 23 and first and between the moving contact 27 of second support 24 and second
Imitate contact area to reduce, influence the stability of contact resistance.
The content of the invention
It is an object of the invention to provide a kind of movable contacting device of low-voltage circuit breaker and low-voltage circuit breaker, it can occur
Enlarged contact pressure during failure high current, it is ensured that the stability of contact resistance.
To reach above-mentioned purpose, the present invention proposes a kind of movable contacting device of low-voltage circuit breaker, and it includes axle, Yi Jitao
If the first positioning seat being arranged in order on the shaft and along the axial direction of the axle, the first elastic component, the first moving contact, support,
Second moving contact, the second elastic component and the second positioning seat；The first elastic component contact is in first positioning seat and described the
Between one moving contact, and the first moving contact is contacted with the support described in ejection；The second elastic component contact is described second
Between positioning seat and second moving contact, and the second moving contact is contacted with the support described in ejection.
The movable contacting device of low-voltage circuit breaker as described above, wherein, first moving contact and described second moves tactile
Head can be rotationally arranged on the shaft, and first moving contact can drive first elastic component and the first positioning seat phase
The support is rotated together, second moving contact can drive second elastic component and second positioning seat relatively described
Support is rotated together.
The movable contacting device of low-voltage circuit breaker as described above, wherein, first moving contact and described second moves tactile
Head can be rotationally arranged on the shaft, and the contact surface of first moving contact and first elastic component is smooth, and described the
One moving contact can be rotated relative to the support and first elastic component, and second moving contact connects with second elastic component
Contacting surface is smooth, and second moving contact can be rotated relative to the support and second elastic component.
The movable contacting device of low-voltage circuit breaker as described above, wherein, first moving contact and described second moves tactile
Head can be rotationally arranged on the shaft, and the contact surface of first elastic component and first positioning seat is smooth, and described the
One moving contact can drive relatively described first positioning seat of first elastic component and the holder pivots, second elastic component with
The contact surface of second positioning seat is smooth, and second moving contact can drive second elastic component relatively described second to determine
Position seat and the holder pivots.
The movable contacting device of low-voltage circuit breaker as described above, wherein, between first moving contact and the axle, institute
State between the second moving contact and the axle and be that gap coordinates between the support and the axle.
The movable contacting device of low-voltage circuit breaker as described above, wherein, first positioning seat and second positioning
Fixation is set on the axle seat respectively.
The movable contacting device of low-voltage circuit breaker as described above, wherein, the axle is made of an electrically conducting material, and the axle
Keep contacting between first moving contact, second moving contact and the support.
The movable contacting device of low-voltage circuit breaker as described above, wherein, first elastic component is the spiral bullet of column
The part of spring, the helical spring of ring-type or corrugated plate shape, second elastic component is helical spring, the spiral bullet of ring-type of column
The part of spring or corrugated plate shape, first positioning seat and second positioning seat are spring base.
The movable contacting device of low-voltage circuit breaker as described above, wherein, the support includes first be arranged side by side
Frame and second support, the first moving contact described in the first elastic component ejection are contacted with the first support, second elasticity
The second moving contact is contacted with the second support described in part ejection.
The present invention also provides a kind of low-voltage circuit breaker, and it includes the movable contacting device of low-voltage circuit breaker as described above.
The characteristics of movable contacting device and low-voltage circuit breaker of the low-voltage circuit breaker of the present invention and advantage are：
1st, the movable contacting device and low-voltage circuit breaker of low-voltage circuit breaker of the invention, by by the first moving contact and second
Moving contact is arranged on the both sides of support, and after larger fault current is produced, fault current is dynamic tactile in the first moving contact and second
The electronic force direction produced on head respectively with the first elastic component to the force direction and the second elastic component of the first moving contact to
The force direction of two moving contacts is identical, that is, increases the first moving contact and support and the second moving contact and support are indirectly
Touch pressure, it is ensured that the stability of the contact resistance of movable contacting device in the case of failure high current；
2nd, the movable contacting device and low-voltage circuit breaker of low-voltage circuit breaker of the invention, due to the first elastic component and the second bullet
One end of property part is acted directly on the first moving contact and the second moving contact respectively, if not considering the shadow of current flow power in circuit
Ring, the contact between the first moving contact and support, between the second moving contact and support is equal to elastic component to moving contact
Active force, it is ensured that movable contacting device contact it is constant；
3rd, the movable contacting device and low-voltage circuit breaker of low-voltage circuit breaker of the invention, in breaker open operation or making process
In, the first moving contact and the second moving contact drive the first positioning seat, the second positioning seat, the first elastic component and the second elastic component to prop up
Frame is that center of rotation is rotated together, nothing between the first elastic component and the first moving contact, between the second elastic component and the second moving contact
It is relative to slide, compared with prior art, the frictional force of movable contacting device can be reduced, it is ensured that the first moving contact and the second moving contact
Motion is flexible, in the case where ensuring contact, movable contacting device is occurred without clamping stagnation problem；
4th, the movable contacting device and low-voltage circuit breaker of low-voltage circuit breaker of the invention, because axle uses the material of well conducting
Material is made, and axle is contacted with the first moving contact, support, the second moving contact respectively, can be effectively reduced the first moving contact and second and be moved tactile
Resistance value between head and support, improves movable contacting device and holds current-carrying ability.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the schematic diagram of the movable contacting device of the first prior art；
Fig. 2 is the explosive view of the movable contacting device of second of prior art；
Fig. 3 is that the movable contacting device of second of prior art is arranged on the schematic diagram in the rotating shaft of low-voltage circuit breaker；
Fig. 4 is the schematic diagram of one embodiment of the movable contacting device of the present invention；
Fig. 5 is the sectional view along line A-A in Fig. 4；
Fig. 6 is the explosive view of the movable contacting device in Fig. 4；
Fig. 7 is the sectional view of another embodiment of the movable contacting device of the present invention；
Fig. 8 is the schematic diagram of one embodiment of the first elastic component and the second elastic component in the present invention；
Fig. 9 is the schematic diagram of second embodiment of the first elastic component and the second elastic component in the present invention；
Figure 10 is the schematic diagram of the 3rd embodiment of the first elastic component and the second elastic component in the present invention.
Main element label declaration：
Prior art：
1 movable contacting device
The spring of 11 moving contact, 12 support 13
14 axles
2 movable contacting devices
The first support of 21 spring, 22 spring base 23
The groove of 231 groove, 24 second support 241
The moving contact of 25 rotating shaft, 251 groove 26 first
The axle of 27 second moving contact 28
The present invention：
3 movable contacting devices
30 axles
The through hole of 301 first boss, 302 second boss 303
The moving contact of 31 first positioning seat, 32 first elastic component 33 first
34 supports
The second support of 341 first support 342
The positioning seat of 35 second moving contact, 36 second elastic component 37 second
The back-up ring of 38 first back-up ring 39 second
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now control illustrates this hair
Bright embodiment.
As shown in Figure 4, Figure 5, the present invention provides a kind of movable contacting device 3 of low-voltage circuit breaker, it include axle 30 and
The first positioning seat 31 for being set on axle 30 and being arranged in order along the axial direction of axle 30, the first elastic component 32, the first moving contact 33, branch
Frame 34, the second moving contact 35, the second elastic component 36 and the second positioning seat 37, the contact of the first elastic component 32 the first positioning seat 31 with
Between first moving contact 33, and the first moving contact of ejection 33 is contacted with support 34, and the contact of the second elastic component 36 is in the second positioning seat
37 and second between moving contact 35, and the second moving contact of ejection 35 is contacted with support 34, for example, the first positioning seat 31 and second is fixed
Position seat 37 is spring base；
If not considering current flow power in circuit, the contact between the first moving contact 33 and support 34 is equal to first
The active force of 32 pair of first moving contact 33 of elastic component, the contact between the second moving contact 35 and support 34 is equal to the second bullet
The active force of property 36 pair of second moving contact 35 of part, can ensure that the constant of movable contacting device contact；
If current flow power in circuit is considered, as shown in figure 4, due to the electric current I3 and second flowed through on the first moving contact 33
The electric current I4 directions flowed through on moving contact 35 are identical, electric power F5 and move tactile second that electric current is produced on the first moving contact 33
The electric power F6 produced on first 35 is a pair of suction equal in magnitude and in opposite direction, because the first moving contact 33 and second is dynamic tactile
First 35 are located at the both sides of support 34, the directed force F 7 that the first elastic component 32 is acted on the first moving contact 33 and electric power F5 respectively
Direction it is identical, and the directed force F 8 that the second elastic component 36 is acted on the second moving contact 35 is identical with electric power F6 direction,
Contact so between the first moving contact 33 and support 34 is equal to the effect of first 32 pair of first moving contact 33 of elastic component
The electric power F5 sums that power F7 is produced with electric current on the first moving contact 33, the contact pressure between the second moving contact 35 and support 34
It is electronic that power is equal to the directed force F 8 of second 36 pair of second moving contact 35 of elastic component and electric current is produced on the second moving contact 35
Power F6 sums；
After there is larger fault current, the electrodynamic direction difference produced due to fault current on two moving contacts
It is identical to the direction of the active force of two moving contacts with two elastic components, that is, the contact between moving contact and support 34 is increased,
Ensure the stability of contact resistance of the movable contacting device under failure current conditions.
Wherein, support 34 includes the first support 341 and second support 342 being arranged side by side, and first support 341 is located at first
Between moving contact 33 and second support 342, second support 342 is located between the second moving contact 35 and first support 341, the first bullet
Property the first moving contact of ejection 33 of part 32 is contacted with first support 341, the second moving contact of ejection 35 of the second elastic component 36 and second
Frame 342 is contacted.
As shown in Figure 5, Figure 6, in first preferred embodiment, the first moving contact 33 and the second moving contact 35 can be rotated
Ground is set on axle 30, and the first moving contact 33 can drive the first elastic component 32 and the opposite brackets 34 of the first positioning seat 31 to turn together
Dynamic, the second moving contact 35 can drive the second elastic component 36 and the opposite brackets 34 of the second positioning seat 37 to rotate together, therefore the first bullet
Property the moving contact 33 of part 32 and first between and the second elastic component 36 and the second moving contact 35 between without relative slip, the first bullet
Property the moving contact 33 of part 32 and first between and the second elastic component 36 and the second moving contact 35 between be not present dynamic friction so that
The frictional force of movable contacting device can be reduced, it is ensured that the first moving contact 33 and the second moving contact 35 are moved flexibly, are ensuring contact
In the case of pressure, movable contacting device is set to occur without catching phenomenon in breaker open operation or making process；
And the movable contacting device 2 of second of prior art then has clamping stagnation, Fig. 2 is referred to, in breaker open operation
Or in making process, rotating shaft 25, the first moving contact 26, the second moving contact 27, spring base 22 and spring 21 are with first support 23,
Two supports 24 rotate for center of rotation, because wherein one end of spring 21 acts on first support 23, in second support 24, spring
There is certain slip between 21 and first support 23, second support 24, and frictional force is there is between there are two parts of slip, institute
Device is contacted with this and there is larger frictional force, this device can be caused to occur clamping stagnation in breaker open operation or making process and showed
As.
As shown in figure 5, in a feasible technical scheme, the contact of the first elastic component 32 is in the first moving contact 33 and first
Between positioning seat 31, without being connected with the first moving contact 33 and the first positioning seat 31, the contact of the second elastic component 36 is dynamic tactile second
First 35 and second between positioning seat 37, without being connected with the second moving contact 35 and the second positioning seat 37, when the He of the first moving contact 33
When second moving contact 35 is rotated, because one end of the first elastic component 32 is acted on the first moving contact 33, the one of the second elastic component 36
End is acted on the second moving contact 35, between the first elastic component 32 and the first moving contact 33 and the second elastic component 36 and second
Just there is frictional force (stiction) between moving contact 35, the first moving contact 33 and the second moving contact 35 can pass through this frictional force band
Dynamic first elastic component 32, the second elastic component 36, the first positioning seat 31 and the second positioning seat 37 are rotated together.
In second preferred embodiment, the first moving contact 33 and the second moving contact 35 rotationally can be set on axle,
The contact surface of first moving contact 33 and the first elastic component 32 is smooth, therefore, several between the first moving contact 33 and the first elastic component 32
Be not present frictional force (frictional force level off to 0), the first moving contact 33 can opposite brackets and the first elastic component 32 rotate, that is,
First moving contact 33 does not drive the first elastic component 32 and the first positioning seat 31 to rotate together when rotating, the second moving contact 35 and second
The contact surface of elastic component 36 is smooth, therefore, and frictional force (friction is there's almost no between the second moving contact 35 and the second elastic component 36
0) power leveled off to, and the energy opposite brackets of the second moving contact 35 and the second elastic component 36 are rotated, that is, during the rotation of the second moving contact 35
The second elastic component 36 and the second positioning seat 37 is not driven to rotate together；
Due between the first moving contact 33 and the first elastic component 32 and between the second moving contact 35 and the second elastic component 36
Frictional force (frictional force level off to 0) is there's almost no, can guarantee that the first moving contact 33 and the second moving contact 35 are moved flexibly, true
In the case of protecting contact, movable contacting device is set to occur without catching phenomenon in breaker open operation or making process.
In the 3rd preferred embodiment, the first moving contact 33 and the second moving contact 35 rotationally can be set on axle,
The contact surface of first elastic component 32 and the first positioning seat 31 is smooth, and the first moving contact 33 can drive the first elastic component 32 relative the
One positioning seat 31 and holder pivots, (rub it is, there's almost no frictional force between the first elastic component 32 and the first positioning seat 31
Wipe power to level off to 0), drive the first elastic component 32 to rotate by frictional force (stiction) when the first moving contact 33 is rotated, without
The first positioning seat 31 is driven to rotate together, the contact surface of the second elastic component 36 and the second positioning seat 37 is smooth, and the second moving contact
35 can drive the second elastic component 36 relative second positioning seat 37 and holder pivots, it is, the second elastic component 36 and the second positioning
Frictional force (frictional force level off to 0) is there's almost no between seat 37, the second moving contact 35 passes through frictional force (static friction when rotating
Power) drive the second elastic component 36 to rotate, without driving the second positioning seat 37 to rotate together；
Because the first moving contact 33 and the second moving contact 35 can drive 36 turns of the first elastic component 32 and the second elastic component respectively
It is dynamic, and between the first elastic component 32 and the first positioning seat 31 and between the second elastic component 36 and the second positioning seat 37 hardly
There is frictional force (frictional force level off to 0), can guarantee that the first moving contact 33 and the second moving contact 35 are moved flexibly, ensuring contact
In the case of pressure, movable contacting device is set to occur without catching phenomenon in breaker open operation or making process.
In a specific embodiment, between the first moving contact 33 and axle 30, between the second moving contact 35 and axle 30 and
It is that gap coordinates between support 34 and axle 30, therefore, the first moving contact 33 and the second moving contact 35 can be rotated around axle 30, and energy
Contacted respectively under the ejection of the first elastic component 32 and the second elastic component 36 with support 34.
Further, fixation is set on axle 30 respectively for the first positioning seat 31 and the second positioning seat 37, for example, be separately fixed at
The two ends of axle 30, therefore, when the first positioning seat 31 and the second positioning seat 37 are with 35 turns of the first moving contact 33 and the second moving contact
When dynamic, can together it be rotated with moving axis 30.
As shown in figure 5, further, the first positioning seat 31 and the second positioning seat 37 are fixed on axle by riveting method respectively
On 30, the first positioning seat 31 and the second positioning seat 37 are fixedly connected between axle 30 by riveting method respectively in other words.
But the present invention is not limited thereto, the first positioning seat 31 and the second positioning seat 37 can also be fixed by other means
On axle 30, for example, it is fixed on by back-up ring mode on axle 30, as shown in fig. 7, being specifically also to be arranged and be fixed with point on axle 30
Not Wei Yu the outside of the first positioning seat 31 and the outside of the second positioning seat 37 the first back-up ring 38 and the second back-up ring 39, the first back-up ring
38 and second back-up ring 39 for example distinguish inlay card in the annular groove on the lateral wall of axle 30, there is difference on the lateral wall of axle 30
First boss 301 and second boss 302 positioned at the inner side of the first positioning seat 31 and the inner side of the second positioning seat 37, the first back-up ring
38 and first boss 301 first positioning seat 31 is fixedly clamped, the second back-up ring 39 and second boss 302 press from both sides the second positioning seat 37
Fasten.
Further, the first elastic component 32 is the helical spring (as shown in Figure 8) of column, the helical spring of ring-type is (such as Fig. 9 institutes
Show) or corrugated plate shape part (as shown in Figure 10), can also be other existing elastic components, wherein, the helical spring of ring-type
It can respectively be connected and be formed by two ends by the helical spring of two columns, the part of corrugated plate shape is the tabular of surface irregularity
Structure；The part of second elastic component 36 or the helical spring of column, the helical spring of ring-type or corrugated plate shape, refers to figure
8- Figure 10, can also be certainly other existing elastic components, the first positioning seat 31 and the second positioning seat 37 are spring base.
Wherein, when the first elastic component 32 and the second elastic component 36 are the helical spring of column, the helical spring of column exists
It is in be compressed axially state (compression direction of the helical spring for being oriented to column of arrow in Fig. 8) between spring base and moving contact；
When the first elastic component 32 and the second elastic component 36 are the helical spring of ring-type, the helical spring of ring-type is in spring base and moving contact
Between in being compressed axially state, the helical spring of ring-type is compressed that (arrow is oriented to ring in Fig. 9 in its thickness direction in other words
The compression direction of the helical spring of shape)；When the first elastic component 32 and the second elastic component 36 are the part of corrugated plate shape, corrugated plating
The part of shape is in state is compressed axially between spring base and moving contact, and the part of corrugated plate shape is in its thickness direction quilt in other words
Compress (compression direction of the part for being oriented to corrugated plate shape of arrow in Figure 10).
In another specific embodiment, axle 30 is made of an electrically conducting material, for example, be made up of copper material with good conductivity, and
Keep contacting between axle 30 and the first moving contact 33, the second moving contact 35 and support 34, although axle 30 and moving contact and support 34
Between coordinate for gap, but axle 30 still keeps contacting between the first moving contact 33, the second moving contact 35 and support 34, with effective
Reduce the resistance value between the first moving contact 33 and support 34 and between the second moving contact 35 and support 34, raising movably connects
Tactile device holds current-carrying ability.
As shown in Figure 5, Figure 7, further, axle 30 is band hole axle, and axle 30 is in hollow tubular in other words, i.e. on axle 30
Through hole 303 is offered along the axial direction of axle 30, the through hole 303 is, for example, centre bore.By the way that axle 30 is set into band hole axle, on the one hand
It is easy to be installed in the rotating shaft of low-voltage circuit breaker, for example, installation axle is passed through to the through hole 303 of axle 30, then installation axle is fixed
It in rotating shaft, on the other hand can mitigate the weight of axle 30, make moving contact motion more flexible.
The present invention also provides a kind of low-voltage circuit breaker, and it includes the movable contacting device 3 of above-mentioned low-voltage circuit breaker.Its
In, support 34 is arranged on the case for circuit breaker of low-voltage circuit breaker.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, the equivalent variations made on the premise of the design of the present invention and principle is not departed from and modification, all should
Belong to the scope of protection of the invention.And it should be noted that the present invention each part be not limited in above-mentioned entirety should
With each technical characteristic described in specification of the invention can select one individually to use or select multinomial according to actual needs
Combine and use, therefore, the present invention covers other combinations relevant with this case inventive point and concrete application in the nature of things.
Claims (10)
1. a kind of movable contacting device of low-voltage circuit breaker, it is characterised in that the movable contacting device bag of the low-voltage circuit breaker
Include axle and be arranged the first positioning seat being arranged in order on the shaft and along the axial direction of the axle, the first elastic component, first move
Contact, support, the second moving contact, the second elastic component and the second positioning seat；
The first elastic component contact first dynamic is touched between first positioning seat and first moving contact, and described in ejection
Head is contacted with the support；
The second elastic component contact second dynamic is touched between second positioning seat and second moving contact, and described in ejection
Head is contacted with the support.
2. the movable contacting device of low-voltage circuit breaker as claimed in claim 1, it is characterised in that first moving contact and institute
Stating the second moving contact can rotationally be arranged on the shaft, and first moving contact can drive first elastic component and described
One positioning seat is rotated together relative to the support, and second moving contact can drive second elastic component and second positioning
Seat is rotated together relative to the support.
3. the movable contacting device of low-voltage circuit breaker as claimed in claim 1, it is characterised in that first moving contact and institute
Stating the second moving contact can rotationally be arranged on the shaft, the contact surface light of first moving contact and first elastic component
It is sliding, and first moving contact can rotate relative to the support and first elastic component, second moving contact and described the
The contact surface of two elastic components is smooth, and second moving contact can be rotated relative to the support and second elastic component.
4. the movable contacting device of low-voltage circuit breaker as claimed in claim 1, it is characterised in that first moving contact and institute
Stating the second moving contact can rotationally be arranged on the shaft, the contact surface light of first elastic component and first positioning seat
It is sliding, and first moving contact can drive relatively described first positioning seat of first elastic component and the holder pivots, it is described
The contact surface of second elastic component and second positioning seat is smooth, and second moving contact can drive the second elastic component phase
To second positioning seat and the holder pivots.
5. the movable contacting device of the low-voltage circuit breaker as described in any one of Claims 1-4, it is characterised in that described first
Between being between moving contact and the axle, between second moving contact and the axle and between the support and the axle
Gap coordinates.
6. the movable contacting device of the low-voltage circuit breaker as described in any one of Claims 1-4, it is characterised in that described first
Fixation is set on the axle respectively for positioning seat and second positioning seat.
7. the movable contacting device of the low-voltage circuit breaker as described in any one of Claims 1-4, it is characterised in that the axle by
Conductive material is made, and keeps contacting between the axle and first moving contact, second moving contact and the support.
8. the movable contacting device of the low-voltage circuit breaker as described in any one of Claims 1-4, it is characterised in that described first
Elastic component is the part of the helical spring, the helical spring of ring-type or corrugated plate shape of column, and second elastic component is column
The part of helical spring, the helical spring of ring-type or corrugated plate shape, first positioning seat and second positioning seat are spring
Seat.
9. the movable contacting device of the low-voltage circuit breaker as described in any one of Claims 1-4, it is characterised in that the support
Including the first support and second support being arranged side by side, the first moving contact described in the first elastic component ejection with described first
Bridge joint is touched, and the second moving contact described in the second elastic component ejection is contacted with the second support.
10. a kind of low-voltage circuit breaker, it is characterised in that the low-voltage circuit breaker is included as described in any one of claim 1 to 9
The movable contacting device of low-voltage circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570368.5A CN107180732A (en) | 2017-07-13 | 2017-07-13 | The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570368.5A CN107180732A (en) | 2017-07-13 | 2017-07-13 | The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107180732A true CN107180732A (en) | 2017-09-19 |
Family
ID=59838509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710570368.5A Pending CN107180732A (en) | 2017-07-13 | 2017-07-13 | The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107180732A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076681A (en) * | 1993-02-16 | 1995-01-10 | Fuji Electric Co Ltd | Movable contact device for circuit breaker |
| CN1118928A (en) * | 1994-02-08 | 1996-03-20 | 富士电机株式会社 | Movable contactor device in circuit breaker |
| CN1641817A (en) * | 2003-12-19 | 2005-07-20 | 伊顿公司 | Lockable fastener for circuit breaker |
| CN103107050A (en) * | 2011-11-09 | 2013-05-15 | 河村电器产业株式会社 | Circuit disconnector with separating plate for supporting movable contact member |
| CN106663552A (en) * | 2014-04-24 | 2017-05-10 | 黑格电子股份有限公司 | Device with movable contact without conductive braid |
-
2017
- 2017-07-13 CN CN201710570368.5A patent/CN107180732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076681A (en) * | 1993-02-16 | 1995-01-10 | Fuji Electric Co Ltd | Movable contact device for circuit breaker |
| CN1118928A (en) * | 1994-02-08 | 1996-03-20 | 富士电机株式会社 | Movable contactor device in circuit breaker |
| CN1641817A (en) * | 2003-12-19 | 2005-07-20 | 伊顿公司 | Lockable fastener for circuit breaker |
| CN103107050A (en) * | 2011-11-09 | 2013-05-15 | 河村电器产业株式会社 | Circuit disconnector with separating plate for supporting movable contact member |
| CN106663552A (en) * | 2014-04-24 | 2017-05-10 | 黑格电子股份有限公司 | Device with movable contact without conductive braid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8128416B2 (en) | Linear motion electrical connector assembly | |
| CN104769442B (en) | Connection terminal and the checking equipment using the connection terminal | |
| CN101165996B (en) | Dynamoelectric machine grommet | |
| KR20110039196A (en) | Electronic expansion valve | |
| CN104218419B (en) | Contact spring and the contact element of electric brush using the contact spring | |
| CN101017183A (en) | Electrical contact device and electrical contact method | |
| CN101834435A (en) | 3-electrode surge protective device | |
| CN107180732A (en) | The movable contacting device and low-voltage circuit breaker of a kind of low-voltage circuit breaker | |
| JP2014504793A (en) | Vacuum valve device including locking means | |
| CN204361016U (en) | Rotaing contactor | |
| CN102511008B (en) | Test apparatus with electrostatic discharge capability | |
| CN103123884A (en) | Contact spring device | |
| CN103296665B (en) | A kind of Transient Voltage Suppressor | |
| CN205565081U (en) | Conductive device | |
| CN204177836U (en) | A kind of EL test probe assembly | |
| CN105470687A (en) | Conductive device | |
| WO2022110355A1 (en) | Make-and-break testing device and method for product housing | |
| CN107785747B (en) | Electric connector | |
| CN103325584B (en) | Arc main current resisting contact device and switch device | |
| CN103578833B (en) | Circuit changing switch | |
| CN107123579A (en) | The contact system and low-voltage circuit breaker of a kind of low-voltage circuit breaker | |
| CN201130602Y (en) | Quincuncial contact for high voltage electrical apparatus | |
| CN103700802B (en) | Elastic contact on end face of powder battery of full electric vehicle | |
| CN205789824U (en) | The conducting system current limliting of a kind of case circuit breaker scolds opening apparatus | |
| CN107293438A (en) | The contact assembly and its negative contact of a kind of high voltage isolator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |