CN205564672U - Conventional circuit -breaker opening pushbutton's stop device - Google Patents
Conventional circuit -breaker opening pushbutton's stop device Download PDFInfo
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- CN205564672U CN205564672U CN201620183484.2U CN201620183484U CN205564672U CN 205564672 U CN205564672 U CN 205564672U CN 201620183484 U CN201620183484 U CN 201620183484U CN 205564672 U CN205564672 U CN 205564672U
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- spring
- torsion spring
- reduction torsion
- shaft
- opening button
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Abstract
Conventional circuit -breaker opening pushbutton's stop device installs energy release semi -axis and reduction torsion spring on circuit breaker operating device's curb plate including opening pushbutton, pivot, and still including the spring stop gear who is used for avoiding the reduction torsion spring landing, it is including installing bullet spring shaft on the curb plate, setting up the limit structure on opening pushbutton and set up the half two epaxial limit structure at energy release, the reduction torsion spring suit is on playing spring shaft, the first end of reduction torsion spring is connected with the limit structure on the opening pushbutton, and the half two epaxial limit structure of second end and energy release of reduction torsion spring is connected. This stop device can effectively prescribe a limit to the reduction torsion spring in the position that half epaxial spring action of opening pushbutton and energy release is ordered, the slippage of stopping the link of reduction torsion spring, effective stability, reliability of improving and guaranteeing circuit breaker operating device's energy storage hasp.
Description
Technical field
This utility model belongs to Low Voltage Electrical Apparatus, relates to a kind of omnipotent breaker, particularly universal disconnected
The stopping means of the opening button of road device operating mechanism.
Background technology
Omnipotent breaker, particularly intelligent universal circuit breaker, be a kind of to have the most complete protection
The low-voltage electrical apparatus that function, protection act electric current are more accurate and intelligence degree is higher, the separating brake of chopper is pressed
Button is for controlling the sub-switching operation of operating mechanism, and opening button includes reduction torsion spring, and operating mechanism completes storage
After energy, the energy snap close that will store up in advance by releasing energy semiaxis is lived, and switch knob to be pressed, by aircraft leverage
In releasing on energy semiaxis, make to release and can along its axis rotation thus complete to release energy closing operation by semiaxis.While combined floodgate,
Release and can must return to original state under the effect of reduction torsion spring by semiaxis, wait the snap close after energy storage next time.
The stability of existing omnipotent breaker energy storage snap close, reliability are not ideal enough, and it is many-sided for tracing it to its cause
, but one of them reason is not taken seriously, it may be assumed that stablizing of the elastic force action effect of reduction torsion spring
Sex chromosome mosaicism.Reduction torsion spring one end releasing energy semiaxis for resetting of the opening button of prior art snaps over releases energy
In the draw-in groove of semiaxis, one end directly snaps over below opening button, due at least one end in the two ends of torsion spring
Using the mode of direct hasp, the torsion spring of direct hasp connects end and sliding easily occurs (as without authorization towards spring silk
Radial slippage) so that the elastic force application point of torsion spring drifts about, its consequence be cause release can semiaxis can not
Reliable reset, the most directly releases energy, loses the effect of energy pre-storage snap close, time serious after causing operating mechanism energy storage
It could even be possible to cause torsion spring to connect the slippage of end, particularly under the effect of the external force factors such as vibrations, exist
The risk come off below opening button because of factors such as vibrations or external force, and the consequence slipped is to cause energy storage to be locked
Button and the inefficacy of combined floodgate/sub-switching operation function, make the stability of energy storage snap close, less reliable, not only affect
Product uses, and more there is security risk.
Utility model content
What this utility model needed solution is that reduction torsion spring snaps over opening button side because of external force factors such as vibrations
Easily landing and the most directly close a floodgate after causing operating mechanism energy storage next time, be unable to reach energy pre-storage snap close effect
Problem, for this technological deficiency of prior art, this utility model provides a kind of omnipotent breaker separating brake
The stopping means of button, on the basis of not affecting operating mechanism overall structure, by having reduction torsion spring
Imitate spacing measure so that it is reduction torsion spring will be made to avoid the occurrence of from side because of the landing easily of the external force factors such as vibrations
The risk of limit landing.
For achieving the above object, this utility model adopts the technical scheme that
The stopping means of a kind of omnipotent breaker opening button, including opening button 3, is pivoted on open circuit
On the side plate 1 of device operating mechanism release can semiaxis 6 and reduction torsion spring 9, also include for avoiding described reset
The spring spacing mechanism of torsion spring 9 landing, spring spacing mechanism includes the spring being arranged on described side plate 1
Axle 8, the first position limiting structure being arranged in described opening button 3 and be arranged on described releasing can be on semiaxis 6
The second position limiting structure；Described reduction torsion spring 9 is sleeved on the spring shaft 8 of described spring spacing mechanism；
First end 91 of reduction torsion spring 9 is connected with the first position limiting structure in described opening button 3, reduction torsion spring
Second end 92 of 9 is connected with described the second position limiting structure released on energy semiaxis 6.
Preferably, the first described position limiting structure includes the first boss being arranged in described opening button 3
32 and second boss 33 and be formed at the first stopper slot 31 between the first boss 32 and the second boss 33；
First end 91 of described reduction torsion spring 9 is installed with the first stopper slot 31 and is coordinated, and is coordinated by this installation
First end 91 of reduction torsion spring 9 is limited in the first stopper slot 31.
Preferably, the first described position limiting structure includes that be arranged in described opening button 3 first is spacing
Groove 31；First end 91 of described reduction torsion spring 9 is installed with the first stopper slot 31 and is coordinated, and by this peace
Assembling is closed and is limited in the first stopper slot 31 by the first end 91 of reduction torsion spring 9.
Preferably, it is spacing that the second described position limiting structure includes being arranged on described release on energy semiaxis 6 second
Groove 62；Second end 92 of described reduction torsion spring 9 is installed with the second stopper slot 62 and is coordinated, and by this peace
Assembling is closed and is limited in the second stopper slot 62 by the second end 92 of reduction torsion spring 9.
Preferably, also include limiting retainer ring 81, after reduction torsion spring 9 is sleeved on spring shaft 8, limiting card
Circle 81 snaps connection with spring shaft 8, and the reduction torsion spring 9 being sleeved on spring shaft 8 is limited to spring shaft 8
On.
Preferably, the top of the spring shaft 8 of described spring spacing mechanism is provided with draw-in groove, limiting retainer ring 81
On be provided with can with the bayonet socket of the draw-in groove clamping of spring shaft 8, and, the clamping of bayonet socket and draw-in groove makes limiting card
Circle 81 and spring shaft 8 form dismountable static connection.
Preferably, the spring shaft 8 of described spring spacing mechanism is eccentric shaft, and spring shaft 8 includes the first axle
Section and the second shaft part, have eccentric distance between axle center and the axle center of the second shaft part of the first shaft part；Spring shaft 8
The first shaft part and described side plate 1 install and be connected, the second shaft part is set with reduction torsion spring 9 and is connected.
Preferably, described opening button 3 includes connecting plate 34 and the button 35 being arranged on connecting plate 34；
Connecting plate 34 one end is provided with pilot hole, and the other end is provided with spacing preiection, and connecting shaft 7 is through opening button 3
Pilot hole and side plate 1 is fixing to be connected, and opening button 3 one end can rotate around connecting shaft 7, the other end spacing
Projection coordinates with the button stopper slot on side plate 1；The first described position limiting structure is arranged on connecting plate 34 and is provided with
On one end side of pilot hole.
Preferably, described releasing can be provided with location division 61 on semiaxis 6, and it is fixed that described side plate 1 is provided with
Position slotted eye 11, and, described location division 61 and location notch hole 11 EDGE CONTACT, with releasing described in restriction
The initial position of energy semiaxis 6.
Preferably, the second end 92 of described reduction torsion spring 9 acts on the elastic force application point of the second position limiting structure
Eccentric moment D is provided with between 63 and the described center of rotation 64 releasing energy semiaxis 6, so that reduction torsion spring 9
The second end 92 act on the second position limiting structure spring energy drive release can semiaxis 6 be turned back to initial position.
The stopping means of omnipotent breaker opening button of the present utility model, by using spring shaft 8, resetting
Torsion spring 9, the first position limiting structure being arranged in opening button 3 and being arranged on is released can the second limit on semiaxis 6
Bit architecture, can effectively limit reduction torsion spring 9 at opening button 3 and the elastic force application point released on energy semiaxis 6
Position, thus prevent the position excursion of this elastic force application point and stopped the cunning connecting end of reduction torsion spring 9
De-, and the reset position precision releasing energy semiaxis 6 and the working torsional angle realizing reduction torsion spring 9 can also be improved
Fine setting, thus be effectively improved and guarantee the stability of energy storage snap close of circuit breaker operation mechanism, reliability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, from accompanying drawing illustrated embodiment
Description in can be seen more clearly from advantage of the present utility model and feature, wherein:
Fig. 1 is the operating mechanism of the stopping means being provided with omnipotent breaker opening button of the present utility model
Schematic perspective view.
Fig. 2 is the overall knot of the stopping means of the omnipotent breaker opening button of this utility model one embodiment
The schematic perspective view of structure.
Fig. 3 is the perspective view of the first embodiment of the opening button 3 shown in Fig. 2.
Fig. 4 is the perspective view of the second embodiment of the opening button 3 shown in Fig. 2.
Fig. 5 is the A close-up schematic view of Fig. 2.
Fig. 6 is the B close-up schematic view of Fig. 2.
Fig. 7 is the partial sectional view of Fig. 6.
Detailed description of the invention
As in figure 2 it is shown, the stopping means of omnipotent breaker opening button of the present utility model, including separating brake
Button 3, be pivoted on the side plate 1 of circuit breaker operation mechanism release can semiaxis 6 and reduction torsion spring 9, figure
1 operating mechanism showing the stopping means being provided with omnipotent breaker opening button of the present utility model,
It include side plate 1 and the opening button 3 being arranged on the two side plate, switch knob 4, big rotating shaft 5 and
Transmission levers (not shown) etc..After operating mechanism completes energy storage, press switch knob 4, by interior
Portion releases and can complete to release and can operate by lever drive, and the biggest rotating shaft 5 back rotation performs breaker switching-on operation.
Pressing opening button 3 again, tripped by internal dropout lever (not shown) transmission, big rotating shaft 5 resets
Return to original position, thus complete sub-switching operation.The limit of omnipotent breaker opening button of the present utility model
One beneficial features of position device is also to include the spring retainer of the elastic force application point for limiting reduction torsion spring 9
Mechanism, sees Fig. 2, it include the spring shaft 8 being arranged on the side plate 1 of operating mechanism, be arranged on described
The first position limiting structure in opening button 3 and be arranged on described releasing can the second position limiting structure on semiaxis 6；
Described reduction torsion spring 9 is sleeved on spring shaft 8；First end 91 of reduction torsion spring 9 is pressed with described separating brake
The first position limiting structure on button 3 connects, and the second end 92 of reduction torsion spring 9 (see Fig. 6,7) is with described
The second position limiting structure released on energy semiaxis 6 connects.Obviously, by the restriction of above-mentioned elastic force application point, can
Avoid described reduction torsion spring 9 because of the landing easily of the external force factors such as vibrations, can effectively guarantee to release energy semiaxis 6
The stability that resets, reliability, can prevent the elastic force of the reduction torsion spring 9 that the factors such as slippage cause from diminishing or losing
Effect.
Another beneficial features of the present utility model is the first position limiting structure, and it has various ways.A kind of excellent
Choosing mode shown in Fig. 2, Fig. 3 and Fig. 5: as described in the first position limiting structure include being arranged on opening button 3
On the first boss 32 and the second boss 33 and be formed between the first boss 32 and the second boss 33
First stopper slot 31；First end 91 of reduction torsion spring 9 is installed with the first stopper slot 31 and is coordinated, and by being somebody's turn to do
Install to coordinate and the first end 91 of reduction torsion spring 9 is limited in the first stopper slot 31 (seeing Fig. 2).Another
Kind of preferred mode is as shown in Figure 4: the first described position limiting structure include being arranged in opening button 3 the
One stopper slot 31；First end 91 of reduction torsion spring 9 is installed with the first stopper slot 31 and is coordinated, and by this peace
Assembling is closed and is limited in the first stopper slot 31 by the first end 91 of reduction torsion spring 9.Installation described here is joined
Close and not only include installing, but also include spring filament diameter and first stopper slot of the first end 91 of reduction torsion spring 9
Dimensional fits between the width of 31, guarantees that by this cooperation the first end 91 of reduction torsion spring 9 is spacing first
Positioning precision in groove 31.
Another beneficial features of the present utility model is the second position limiting structure, and it has various ways.A kind of excellent
The mode of choosing is shown in Fig. 2, Fig. 6 and Fig. 7: as described in the second position limiting structure include being arranged on that release can semiaxis 6
On the second stopper slot 62；Second end 92 of reduction torsion spring 9 is installed with the second stopper slot 62 and is coordinated, and leads to
Cross this installation cooperation to be limited in the second stopper slot 62 by the second end 92 of reduction torsion spring 9.In like manner, here
Described installation coordinates and not only includes installing, but also includes the spring filament diameter of the second end 92 of reduction torsion spring 9
And the dimensional fits between the width of the second stopper slot 62, guarantees the second end of reduction torsion spring 9 by this cooperation
92 positioning precisions in the second stopper slot 62.
Another beneficial features of the present utility model is the structure of spring shaft 8, and it has various ways, a kind of
Preferably: described spring shaft 8 is eccentric shaft, it include the first shaft part (not shown) and
Second shaft part (not shown)；Between axle center and the axle center of the second shaft part of the first shaft part, there is eccentric distance.
First shaft part and side plate 1 are installed and are connected that (the i.e. first shaft part is installed on side plate 1 in the way of shaft hole matching
Connect), the second shaft part and reduction torsion spring 9 are set with and are connected that (i.e. reduction torsion spring 9 is sleeved on the company on the second shaft part
Connect).Obviously, by using the structure of eccentric shaft, the working torsional angle of fine-tuning reduction torsion spring 9 (that is: the
Angle between one end 91 and the second end 92) size, in other words, fine-tuning reduction torsion spring 9 acts on
The second position limiting structure releasing energy semiaxis 6 and the elastic force of the first position limiting structure acting on opening button 3,
Concrete trim process is as follows.When rotation spring axle 8 makes it around the axis rotation of the first shaft part, its eccentric shaft
Structure make second shaft part drive reduction torsion spring 9 move radially；(i.e. lean on for moving up when moving radially
Nearly first position limiting structure and the second position limiting structure) time, the working torsional angle of reduction torsion spring 9 strengthens so that multiple
First end 91 of position torsion spring 9 acts on the second end 92 of the first position limiting structure and reduction torsion spring 9 and acts on the
The elastic force of two position limiting structures strengthens；Otherwise, when moving radially as moving down (i.e. away from the first position limiting structure
With the second position limiting structure) time, the working torsional angle of reduction torsion spring 9 reduces so that the first of reduction torsion spring 9
The second end 92 that end 91 acts on the first position limiting structure and reduction torsion spring 9 acts on the bullet of the second position limiting structure
Power reduces.Certainly, the suit of reduction torsion spring 9 and the second shaft part has dimensional fits, and this cooperation defines multiple
Position torsion spring 9 is along the movement of spring shaft 8 radial direction.In order to limit reduction torsion spring 9 along the axial movement of spring shaft 8,
A kind of preferably mode is such as: be additionally provided with limiting retainer ring 81, after reduction torsion spring 9 is sleeved on spring shaft 8,
Limiting retainer ring 81 snaps connection with spring shaft 8, and the reduction torsion spring 9 being sleeved on spring shaft 8 is limited to bullet
On spring axle 8.The top of described spring shaft 8 is provided with draw-in groove (not shown), on limiting retainer ring 81
Being provided with can be with the bayonet socket 810 of this draw-in groove clamping, by the clamping of bayonet socket Yu draw-in groove, make limiting retainer ring 81 with
Spring shaft 8 forms dismountable static connection, and this connection defines the reduction torsion spring 9 being sleeved on spring shaft 8
Axial location.
Another beneficial features that this utility model also has is the assembling structure about opening button 3, and it has
Various ways, as shown in Figure 3,4, described opening button 3 includes connecting plate 34 to a kind of preferably mode
With the button 35 being arranged on connecting plate 34；Connecting plate 34 one end is provided with pilot hole, and the other end is provided with spacing
Projection, connecting shaft 7 fixes with side plate 1 through the pilot hole of opening button 3 and is connected, opening button 3 one end
Can rotate around connecting shaft 7, the spacing preiection of the other end coordinates with the button stopper slot on side plate 1；Described
First position limiting structure is arranged on connecting plate 34 and is provided with on one end side of pilot hole.
This utility model also have another beneficial features be about reduction torsion spring 9 with release can semiaxis 6 second
Position limiting structure drives and the structure resetted, and it has a various ways, a kind of preferably mode such as Fig. 2, Fig. 6 and
Shown in Fig. 7: described releasing can be provided with location division 61 on semiaxis 6, the side plate 1 of the operating mechanism of chopper
On be provided with the location notch hole 11 that can contact with this location division 61, by location division 61 and location notch hole 11
EDGE CONTACT, it is possible to limit the initial position releasing energy semiaxis 6.See Fig. 7, the second end of reduction torsion spring 9
Arrange between the 92 elastic force application points 63 acting on the second position limiting structure and the center of rotation 64 releasing energy semiaxis 6
There is eccentric moment D, so that the spring energy that the second end 92 of reduction torsion spring 9 acts on the second position limiting structure drives
Release and can be turned back to above-mentioned initial position by semiaxis 6.Obviously, omnipotent breaker separating brake of the present utility model is pressed
The stopping means of button passes through said structure, can further improve and releases and can make at the elastic force of reduction torsion spring 9 by semiaxis 6
Reseting precision, reset stability and reset reliability under with.
Above content is to combine concrete preferred implementation further detailed description of the utility model,
It cannot be assumed that of the present utility model being embodied as is confined to these explanations.For technology belonging to this utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making
Dry simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a stopping means for omnipotent breaker opening button, including opening button (3), pivotally mounted
On the side plate (1) of circuit breaker operation mechanism release can semiaxis (6) and reduction torsion spring (9), its feature exists
In: also include the spring spacing mechanism for avoiding described reduction torsion spring (9) landing, spring spacing mechanism
Including the spring shaft (8) being arranged on described side plate (1), it is arranged in described opening button (3)
The first position limiting structure and be arranged on described releasing can the second position limiting structure on semiaxis (6)；Described reset
Torsion spring (9) is sleeved on the spring shaft (8) of described spring spacing mechanism；The first of reduction torsion spring (9)
End (91) is connected with the first position limiting structure in described opening button (3), the of reduction torsion spring (9)
Two ends (92) are connected with described the second position limiting structure released on energy semiaxis (6).
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
The first described position limiting structure includes being arranged on the first boss (32) in described opening button (3) and
Two boss (33) and be formed at the first stopper slot between the first boss (32) and the second boss (33)
(31)；First end (91) of described reduction torsion spring (9) is installed with the first stopper slot (31) and is coordinated,
And by this installation cooperation, first end (91) of reduction torsion spring (9) is limited in the first stopper slot (31).
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
The first described position limiting structure includes the first stopper slot (31) being arranged in described opening button (3)；
First end (91) of described reduction torsion spring (9) is installed with the first stopper slot (31) and is coordinated, and by being somebody's turn to do
Install to coordinate and first end (91) of reduction torsion spring (9) is limited in the first stopper slot (31).
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
The second described position limiting structure includes being arranged on described the second stopper slot (62) released on energy semiaxis (6)；
Second end (92) of described reduction torsion spring (9) is installed with the second stopper slot (62) and is coordinated, and by being somebody's turn to do
Install to coordinate and second end (92) of reduction torsion spring (9) is limited in the second stopper slot (62).
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
Also include limiting retainer ring (81), after reduction torsion spring (9) is sleeved on spring shaft (8), limiting retainer ring (81)
Snap connection with spring shaft (8), the reduction torsion spring (9) being sleeved on spring shaft (8) is limited to spring
On axle (8).
The stopping means of omnipotent breaker opening button the most according to claim 5, it is characterised in that:
The top of the spring shaft (8) of described spring spacing mechanism is provided with draw-in groove, and limiting retainer ring (81) is upper to be arranged
Have can with the bayonet socket of the draw-in groove clamping of spring shaft (8), and, the clamping of bayonet socket and draw-in groove makes limiting retainer ring (81)
Dismountable static connection is formed with spring shaft (8).
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
The spring shaft (8) of described spring spacing mechanism is eccentric shaft, and spring shaft (8) includes the first shaft part and
Two shaft parts, have eccentric distance between axle center and the axle center of the second shaft part of the first shaft part；Spring shaft (8)
First shaft part is installed with described side plate (1) and is connected, and the second shaft part is connected with reduction torsion spring (9) suit.
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
Described opening button (3) includes connecting plate (34) and the button (35) being arranged on connecting plate (34)；
Connecting plate (34) one end is provided with pilot hole, and the other end is provided with spacing preiection, and connecting shaft (7) is pressed through separating brake
The pilot hole of button (3) is fixing with side plate (1) to be connected, and opening button (3) one end can be around connecting shaft (7)
Rotating, the spacing preiection of the other end coordinates with the button stopper slot on side plate (1)；The first described spacing knot
Structure is arranged on connecting plate (34) and is provided with on one end side of pilot hole.
The stopping means of omnipotent breaker opening button the most according to claim 1, it is characterised in that:
Described releasing can be provided with location division (61) on semiaxis (6), and described side plate (1) is provided with locating slot
Hole (11), and, described location division (61) and location notch hole (11) EDGE CONTACT, described to limit
Release can semiaxis (6) initial position.
The stopping means of omnipotent breaker opening button the most according to claim 9, its feature exists
In: second end (92) of described reduction torsion spring (9) acts on the elastic force application point (63) of the second position limiting structure
And described releasing can be provided with eccentric moment D between the center of rotation (64) of semiaxis (6), turns round so that resetting
Second end (92) of spring (9) acts on the spring energy driving of the second position limiting structure and releases and can turn round by semiaxis (6)
To initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620183484.2U CN205564672U (en) | 2016-03-10 | 2016-03-10 | Conventional circuit -breaker opening pushbutton's stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620183484.2U CN205564672U (en) | 2016-03-10 | 2016-03-10 | Conventional circuit -breaker opening pushbutton's stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564672U true CN205564672U (en) | 2016-09-07 |
Family
ID=56816846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620183484.2U Active CN205564672U (en) | 2016-03-10 | 2016-03-10 | Conventional circuit -breaker opening pushbutton's stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963966A (en) * | 2020-07-20 | 2022-01-21 | 上海良信电器股份有限公司 | Separating brake switch and remote circuit breaker |
-
2016
- 2016-03-10 CN CN201620183484.2U patent/CN205564672U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963966A (en) * | 2020-07-20 | 2022-01-21 | 上海良信电器股份有限公司 | Separating brake switch and remote circuit breaker |
| WO2022017075A1 (en) * | 2020-07-20 | 2022-01-27 | 华为数字能源技术有限公司 | Opening switch and remote circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: Limiting device of opening button of universal circuit breaker Granted publication date: 20160907 License type: Common License Record date: 20201021 |
|
| EE01 | Entry into force of recordation of patent licensing contract |