CN207557817U - Actuation means - Google Patents
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- CN207557817U CN207557817U CN201721526733.4U CN201721526733U CN207557817U CN 207557817 U CN207557817 U CN 207557817U CN 201721526733 U CN201721526733 U CN 201721526733U CN 207557817 U CN207557817 U CN 207557817U
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- piezoelectric elements
- actuator
- actuation means
- control unit
- substrate
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Abstract
A kind of actuation means, comprising：Actuator, the first piezoelectric elements and the second piezoelectric elements.Actuator is movably disposed in substrate.The both ends of first piezoelectric elements are fixedly installed on substrate and actuator respectively.The both ends of second piezoelectric elements are fixedly installed on substrate and actuator respectively.Control unit is electrically connected in first piezoelectric elements and the second piezoelectric elements, and control unit can control the first piezoelectric elements to be bent to first direction or its negative direction, and control unit can control the second piezoelectric elements to be bent to second direction or its negative direction.Control unit controls the first piezoelectric elements to be repeatedly bent to first direction or its negative direction, and when controlling the second piezoelectric elements to be repeatedly bent to second direction or its negative direction, and actuator can be driven by the first piezoelectric elements and the second piezoelectric elements and be moved along a closed path.Actuator can repeatedly support other components, and other components is made to rotate or constantly be moved to a direction.The structure of actuation means entirety is simple and at low cost.
Description
Technical field
The utility model is related to a kind of actuation means, particularly a kind of actuation means activated using piezoelectric unit.
Background technology
Now common various pivot structure, the relevant shaft structure being especially applied in laptop, in order to accord with
The different demands of He Ge manufacturers, pivot structure is increasingly sophisticated, and cost equally increases therewith.Therefore, for manufacturing shaft
For the relevant manufactures of structure, how effectively to simplify pivot structure, become most important subject.
Utility model content
The main purpose of the utility model is that a kind of actuation means are provided, and to solve in the prior art, pivot structure
It is complicated and of high cost the problem of.
To achieve these goals, the utility model provides a kind of actuation means, it includes：One actuator can live
It is set to a substrate dynamicly；One first piezoelectric elements, both ends are fixedly installed on substrate and actuator respectively, and the first piezoelectric elements are electrical
Connect a control unit；Wherein, the first piezoelectric elements can be controlled by control unit, and selectively to a first direction and in contrast to
The direction bending of first direction；And one second piezoelectric elements, both ends are fixedly installed on substrate and the actuator respectively, second
Piezoelectric elements are electrically connected control unit；Wherein, the second piezoelectric elements can be controlled by control unit, and selectively to a second direction
And it is bent in contrast to the direction of second direction；Wherein, first direction is not parallel to second direction；Wherein, control unit first controls
First piezoelectric elements and the second piezoelectric elements are bent respectively to first direction and the second direction, and then control unit controls first again
When piezoelectric elements and the second piezoelectric elements are bent respectively to the direction in contrast to first direction and in contrast to the direction of second direction, driving
Part can be driven by the first piezoelectric elements and the second piezoelectric elements and be moved along a closed path.
Preferably, for actuation means also comprising two pedestals and substrate, two pedestals are fixedly installed on substrate at each interval,
The both ends of first piezoelectric elements are individually fixed in one of pedestal and actuator, and the both ends of the second piezoelectric elements are individually fixed in another
A pedestal and actuator.
Preferably, actuation means also include control unit, and control unit is electrically connected the first piezoelectric elements and the second piezoelectricity
Part；Control unit can selectively provide the electric current of the first piezoelectric elements difference current direction, and make the first piezoelectric elements selectively
It is bent to first direction or in contrast to the direction of first direction；Control unit can selectively provide the second piezoelectric elements difference electric current
The electric current in direction, and the second piezoelectric elements is made selectively to be bent to second direction or in contrast to the direction of second direction.
Preferably, actuator includes a perforation, perforates to set a shaft；Control unit control the first piezoelectric elements to
When first direction or the direction bending in contrast to first direction, pushing and pressing shaft can be corresponded to by forming the madial wall of perforation；Control unit
When controlling the second piezoelectric elements to be bent to second direction or in contrast to second direction, form the madial wall of perforation and can correspond to pushing and pressing and turn
Axis.
Preferably, during actuator is repeatedly moved along closed path, forming the madial wall of perforation can repeatedly push away
To shaft, and rotate shaft.
Preferably, actuation means also include a moving part, during actuator is repeatedly moved along closed path, drive
Moving part can push against moving part, and moving part is made to be moved to an axial direction.
Preferably, actuation means also include a rotating member, during actuator is repeatedly moved along closed path, drive
Moving part can push against rotating member, and rotate rotating member.
Preferably, one of pedestal and actuator sets along a first axle, another pedestal and actuator are along one the
Two axis are set, the not parallel second axis of first axle.
Preferably, first axle is perpendicular to second axis.
Preferably, the first piezoelectric elements and the second piezoelectric elements are laminated structure, and the narrow side of the first piezoelectric elements is to face
Substrate is provided with the upper surface of actuator, and the narrow side of the second piezoelectric elements is the upper surface for facing actuator.
The beneficial effects of the utility model can be：Through the mutual of the first piezoelectric elements, the second piezoelectric elements and actuator
Cooperation, actuator can be moved along a closed path, and actuator can repeatedly support other components whereby, and rotate other components
Or it is constantly moved to a direction.The structure of actuation means entirety is simple and at low cost.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of the first embodiment of the actuation means of the utility model.
Fig. 2 is the top view of the first embodiment of the actuation means of the utility model.
Fig. 3 to Fig. 5 is the illustrative view of the first embodiment of the actuation means of the utility model.
Fig. 6 is the stereoscopic schematic diagram of the second embodiment of the actuation means of the utility model.
Fig. 7 is the top view of the second embodiment of the actuation means of the utility model.
Fig. 8 to Figure 10 is the illustrative view of the second embodiment of the actuation means of the utility model.
Figure 11 is the schematic diagram of the 3rd embodiment of the actuation means of the utility model.
Specific embodiment
It is the schematic diagram of the first embodiment of the actuation means of the utility model also referring to Fig. 1 and Fig. 2.Such as figure
Described, actuation means 1 include an actuator 10,11, two pedestals 12 of a substrate, one first piezoelectric elements 13 and one second piezoelectricity
Part 14.Actuator 10 is movably disposed in substrate 11, and two pedestals 12 are fixedly installed on substrate 11.In practical applications,
In pedestal 12 with actuator 10 set along a first axle AX1, and another pedestal 12 and actuator 10 are then along one
Second axis AX2 is set；Wherein, first axle AX1 is not parallel to second axis AX2；In other words, two pedestals 12 and driving
Part 10 is set along same axis.Preferably, the first axle AX1 and the second axis AX2 can be mutually perpendicular to.
External form and its installation position opposite to each other about actuator 10, substrate 11 and two pedestals 12, can be subject to according to demand
Variation, not to be limited shown in scheming.
The both ends of first piezoelectric elements 13 are fixedly installed on pedestal 12 and actuator 10, the both ends point of the second piezoelectric elements 14 respectively
It is not fixedly installed on pedestal 12 and actuator 10.In practical applications, each pedestal 12 can have a clamp structure 101,
And one end of the first piezoelectric elements 13 or one end of the second piezoelectric elements 14 can be then the clamping knots for being correspondingly arranged in each pedestal 12
In structure 121, and locking part (such as screw) is penetrated again to be fixed to each other.Certainly, the first piezoelectric elements 13 and the second piezoelectric elements 14 with
The mode that two pedestals 12 are fixed to each other, not to be limited shown in scheming.In different applications, one end of the first piezoelectric elements 13 and
One end of second piezoelectric elements 14 or directly it is bonding on two pedestals 12.In this present embodiment, the one of the first piezoelectric elements 13
End and one end of the second piezoelectric elements 14, are to be fixed on substrate 11 using two pedestals 12, but not limited to this, the first piezoelectric elements 13
One end and one end of the second piezoelectric elements 14 can be according to demand, be fixed on substrate 11 in different ways.
A control unit (not shown) is electrically connected in first piezoelectric elements 13 and the second piezoelectric elements 14.Control unit can be selected
The electric current of the different current directions of the first piezoelectric elements 13 is provided to selecting property, so that the first piezoelectric elements 13 are selectively to a first direction
D1 or the direction D1 ' bendings in contrast to first direction D1；It is different that control unit equally can selectively provide the second piezoelectric elements 14
The electric current of current direction, so that the second piezoelectric elements 14 are selectively to second direction D2 or the direction in contrast to second direction D2
D2 ' is bent.Wherein, the first direction D1 is not parallel to second direction D2.First piezoelectric elements 13 or the second piezoelectric elements 14 are controlled
Unit control processed, and respectively to during different direction bendings, the first piezoelectric elements 13 and the second piezoelectric elements 14 can drive driving respectively
Part 10 is moved relative to substrate 11 to different directions.Described control unit can include microprocessor (not shown) and electricity
Source supply (not shown), microprocessor can then control power supply unit selectively to provide the first piezoelectric elements 13 or the second pressure
The electric current of electric 14 difference current direction of part；Microprocessor can be while or the sequential according to design, control power supply unit
The electric current in scheduled current direction is provided to the first piezoelectric elements 13 and the second piezoelectric elements 14.
In specific application, the first piezoelectric elements 13 and the second piezoelectric elements 14 can be rendered as sheet knot shown in figure
Structure.Preferably, the upper surface that the narrow side of the first piezoelectric elements 13 and the second piezoelectric elements 14 can be approximately perpendicular to substrate 11 is set
Put, and the first piezoelectric elements 13 and the second piezoelectric elements 14 are controlled respectively by control unit, and to specific direction be bent when, then can correspond to
Actuator 10 is driven to be moved in the upper surface of substrate 11.In concrete application, substrate 11 is adjacent to around actuator 10 can be with
Be provided with multiple position limiting structures (not shown, e.g. convex block), can limit whereby actuator 10 by the first piezoelectric elements 13 or
Scope of activities when second piezoelectric elements 14 drive.
First piezoelectric elements 13 and the second piezoelectric elements 14 are controlled respectively by control unit, and respectively repeatedly to first direction D1
And its when negative direction, second direction D2 and its negative direction bending, actuator 10 can be by the first piezoelectric elements 13 and the second piezoelectric elements 14
It drives and is moved along a closed path, the closed path is such as can be enclosing square, closed circle, visual first piezoelectricity
The displacement that 13 and second piezoelectric elements 14 of part drive actuator 10 to move determines, is not limited in this.It will be detailed below,
Control unit control 14 alternating bending of the first piezoelectric elements 13 and the second piezoelectric elements, and the reality that actuator 10 is made to be moved along closed path
Make flowing mode in border.
Also referring to Fig. 3 to Fig. 5, it is shown as control unit and controls the first piezoelectric elements 13 and the second piezoelectric elements 14 successively
It is bent to specific direction, so that the illustrative view that actuator 10 is moved along the closed path.In practical applications, control is single
The bending direction of member control 14 priority of the first piezoelectric elements 13 and the second piezoelectric elements, not to be limited shown in scheming, any control unit
Control the first piezoelectric elements 13 and the second piezoelectric elements 14, and the control mode that actuator 10 can be made to be moved along closed path, it comes under
The change application range of the present embodiment.
As shown in figure 3, control unit can be that the first piezoelectric elements 13 is first controlled to be bent to first direction D1, and control second
Piezoelectric elements 14 to second direction D2 be bent, at this point, actuator 10 will be driven by the first piezoelectric elements 13 and the second piezoelectric elements 14 and
-X direction and Y-direction movement substantially into figure.In practical applications, control unit can control the first piezoelectric elements 13 simultaneously
And second piezoelectric elements 14 be bent respectively to first direction D1 and second direction D2；Control unit can also first control the first piezoelectricity
Part 13 is bent to first direction D1, then the second piezoelectric elements 14 is controlled to be bent to second direction D2；Alternatively, control unit may also be first
The second piezoelectric elements 14 is controlled to be bent to second direction D2, then the first piezoelectric elements 13 is controlled to be bent to first direction D1.
As shown in Figures 4 and 5, control unit can be rendered as the shape of Fig. 3 in the first piezoelectric elements 13 and the second piezoelectric elements 14
After state, the second piezoelectric elements 14 is first controlled to be bent (as shown in Figure 4) to the direction D2 ' in contrast to second direction D2, then control is single
Member can control the first piezoelectric elements 13 to be bent (as shown in Figure 5) to the direction D1 ' in contrast to first direction D1 again, in this way, driving
Part 10 will be driven by the second piezoelectric elements 14 and the first piezoelectric elements 13, and be moved to -Y direction and X-direction.Actuator 10 is by Fig. 3
During conversion to Fig. 5, actuator 10 is driven by the first piezoelectric elements 13 and the second piezoelectric elements 14, and approximately along counterclockwise
Closed path moves, and for microcosmic angle, actuator 10 is about moving along the closed path of similar rectangle.
As described above, control unit first controls the first piezoelectric elements 13 and the second piezoelectric elements 14 respectively to first direction D1 and
Two direction D2 are bent, and then control the first piezoelectric elements 13 and the second piezoelectric elements 14 again respectively to the direction in contrast to first direction D1
D1 ', the direction D2 ' bendings in contrast to second direction D2, then actuator 10 will be by the first piezoelectric elements 13 and the second piezoelectric elements 14
Drive is moved, and the path of motion of actuator 10 is then substantially assumed closed relative to substrate 11.
As shown in figure 5, in practical applications, control unit controls the first piezoelectric elements 13 to the side in contrast to first direction D1
When being bent to D1 ', control unit simultaneously or can then control the second piezoelectric elements 14 to second direction D2 be bent, then control again
It makes the first piezoelectric elements 13 to be bent to first direction D1, and makes actuator 10, the first piezoelectric elements 13 and the second piezoelectric elements 14 by Fig. 5's
State is changed into the state of Fig. 3, and then control unit secondary control the first piezoelectric elements 13 and the second piezoelectric elements 14 can then repeat again
The start of Fig. 3 to Fig. 5, so that actuator 10 is repeatedly moved along closed path.
It is noted that in practical applications, in the offset phase that the first piezoelectric elements 13 and the second piezoelectric elements 14 are bent
To it is larger when, control unit can be control the first piezoelectric elements 13 in first direction D1, the direction D1 ' in contrast to first direction D1
And it is mutually converted under three kinds of states of neutral (being not biased towards first direction D1 or its opposite direction D1 ')；Control unit is equally
It can be that the second piezoelectric elements 14 of control mutually convert under three kinds of states, and be not limited to shown in Fig. 3 to Fig. 5, control unit
The first piezoelectric elements 13 and the second piezoelectric elements 14 is controlled mutually to be converted in two states.
Please ginseng Fig. 1, actuator 10 can be again that there is a perforation 102, perforation 102 is plugging a shaft 15.In reality
In, shaft 15 can be rotatably fixed to be set on substrate 11, and corresponding in perforation 102.The perforation 102
Internal diameter be slightly greater than the diameter of shaft 15；When actuator 10 is driven by the first piezoelectric elements 13, and is moved relative to substrate 11,
Pushing and pressing shaft 15 can then be corresponded to by forming the madial wall of perforation 102；In the same manner, actuator 10 is driven by the second piezoelectric elements 14 and in base
When being moved on plate 11, pushing and pressing shaft 15 can be corresponded to by forming the madial wall of perforation 102.In other words, perforate 102 internal diameter and shaft
Gap between 15 diameter, can be according to the first piezoelectric elements 13 and the second piezoelectric elements 14 to specific direction be bent when offset
Amount is designed.
Such as the start of earlier figures 3 to Fig. 5, when control unit controls the first piezoelectric elements 13 and the second piezoelectric elements 14 respectively repeatedly
Ground to first direction D1 and its opposite direction D1 ', second direction D2 and its opposite direction D2 ' be bent when, actuator 10 will be by
One piezoelectric elements 13 and the second piezoelectric elements 14 drive, and are moved relative to substrate 11 along closed path；Simultaneously, perforation is formed
102 madial wall, will be different with the bending direction of the first piezoelectric elements 13 and the second piezoelectric elements 14, and correspond to pushing and pressing shaft 15 to not
Same direction movement, in this way, can rotate shaft 15.In practical applications, control unit controls the first piezoelectric elements 13 and the
Two piezoelectric elements 14 sequentially to specific direction be bent, and make actuator 10 along closed path move one time when, formed perforation 102 it is interior
Side wall pushes against shaft 15 by corresponding, and shaft 15 is made to rotate a low-angle.Relatively, control unit continuously controls the first piezoelectricity
13 and second piezoelectric elements 14 of part are bent to specific direction, and when so that the actuator 10 is repeatedly moved along closed path, shaft 15 will
The madial wall pushing and pressing of perforation 102 are formed, and are constantly rotated to the same direction, shaft 15 was by rotatable one week or more whereby.
Certainly, in different applications, actuator 10 moves once along closed path, and shaft 15 can also be that correspondence rotates a circle.
It is the schematic diagram of the second embodiment of the actuation means of the utility model also referring to Fig. 6 and Fig. 7.Such as figure
It is shown, the present embodiment and previous embodiment maximum the difference lies in, actuation means 1 ' can also include a moving part 16,
Can be adjacent to the setting of actuator 10 '.Actuator 10 ' is driven by the first piezoelectric elements 13 and the second piezoelectric elements 14, and along described
When closed path moves, actuator 10 ' can selectively push against moving part 16, so that moving part 16 is moved to an axial direction.
Specifically, also referring to Fig. 8 to Figure 10, it is shown as the illustrative view of the actuation means 1 of the present embodiment.
As shown in figure 8, control unit can first control the first piezoelectric elements 13 and the second piezoelectric elements 14 respectively to first direction D1 and
Two direction D2 are bent, and are made actuator 10 ' that can be driven and substantially moved to -X direction and Y-direction.As shown in figure 9, then control
Unit processed can be that the second piezoelectric elements 14 is controlled to be bent to the direction D2 ' in contrast to second direction D2 again, and actuator 10 ' is then at this time
It can be driven and substantially be moved to -Y direction.As shown in Figure 10, last control unit can control the first piezoelectric elements 13 to phase
It is instead bent in the direction D1 ' of first direction D1, so that actuator 10 ' is driven and is substantially moved to X-direction.Such as Fig. 8 to Figure 10,
Actuator 10 ' is after control unit continuously controls the first piezoelectric elements 13 and the second piezoelectric elements 14, it will is driven and big along one
Cause the path movement of closing.
During being driven in actuator 10 ' and being moved along the closed path, the part of actuator 10 ' can be pair
Moving part 16 should be pushed against, and enables moving part 16 mobile along an axis direction (being the direction of lower right in Figure 10)；Control is single
Member repeatedly controls the first piezoelectric elements 13 and the second piezoelectric elements 14 sequentially to first direction D1, second direction D2, in contrast to first
The direction D1 ' of direction D1 and the direction D2 ' bendings in contrast to second direction D2, then actuator 10 ' will repeatedly push against moving part
16, and moving part 16 is made constantly to be moved along the axis direction.
In practical application, actuator 10 ' is in the case where which kind of state the first piezoelectric elements 13 and the second piezoelectric elements 14 are rendered as
Moving part 16 is pushed against, does not limit, can be designed according to actual demand in this.In addition, it is to interlock in the present embodiment figure
After the pushing and pressing of 16 driven member 10 ' of part, moved to the lower right direction of Figure 10, but not limited to this；For example, control unit control
The actuator state of the first piezoelectric elements 13 and the second piezoelectric elements 14 is made, is sequentially converted by Figure 10 to Fig. 8, then moving part 16 can be by
Upper left side direction movement with trend Figure 10.In preferable application, actuation means 1 can also include multiple auxiliary members 17,
Multiple auxiliary members 17 can be adjacent to moving part 16 to set, and assist the movement of moving part 16；For example, auxiliary member
17 can be idler wheel.
1 is please referred to Fig.1, is the schematic diagram of the 3rd embodiment of the actuation means 1 of the utility model.As shown in the figure, this
The difference lies in actuation means 1 can also include a rotating member 18 to embodiment, be adjacent to drive with previous embodiment maximum
Moving part 10 is set.Actuator 10 is repeatedly driven by the first piezoelectric elements 13 and the second piezoelectric elements 14, and repeatedly along closed path
In mobile process, the part of actuator 10 can push against rotating member 18 repeatedly, and rotate rotating member 18.
Claims (10)
1. a kind of actuation means, which is characterized in that the actuation means include：
One actuator can actively be set to a substrate；
One first piezoelectric elements, both ends are fixedly installed on the substrate and the actuator respectively, and first piezoelectric elements are electrical
Connect a control unit；Wherein, first piezoelectric elements can be controlled by described control unit, and selectively to a first direction
And it is bent in contrast to the direction of the first direction；And
One second piezoelectric elements, both ends are fixedly installed on the substrate and the actuator respectively, and second piezoelectric elements are electrical
Connect described control unit；Wherein, second piezoelectric elements can be controlled by described control unit, and selectively to a second party
To and in contrast to the second direction direction bending；Wherein, the first direction is not parallel to the second direction；
Wherein, described control unit first control first piezoelectric elements and second piezoelectric elements respectively to the first direction and
The second direction bending, then described control unit controls first piezoelectric elements and second piezoelectric elements respectively to phase again
Anti- when the direction of the first direction and the direction bending in contrast to the second direction, the actuator can be by described first
Piezoelectric elements and second piezoelectric elements drive and are moved along a closed path.
2. actuation means according to claim 1, which is characterized in that the actuation means are also comprising two pedestals and described
Substrate, two pedestals are fixedly installed on the substrate at each interval, and the both ends of first piezoelectric elements are individually fixed in
One of them described pedestal and the actuator, the both ends of second piezoelectric elements are individually fixed in another described pedestal and institute
State actuator.
3. actuation means according to claim 1, which is characterized in that it is single that the actuation means also include the control
Member, described control unit are electrically connected first piezoelectric elements and second piezoelectric elements；Described control unit can be selectively
The electric current of the first piezoelectric elements difference current direction is provided, and makes first piezoelectric elements selectively to the first direction
Or it is bent in contrast to the direction of the first direction；Described control unit can selectively provide second piezoelectric elements different electricity
The electric current in direction is flowed, and makes second piezoelectric elements selectively to the second direction or the side in contrast to the second direction
To bending.
4. actuation means according to claim 3, which is characterized in that the actuator includes a perforation, the perforation
To set a shaft；Described control unit controls first piezoelectric elements to the first direction or in contrast to the first party
To direction be bent when, the pushing and pressing shaft can be corresponded to by forming the madial wall of the perforation；Described control unit control described the
When two piezoelectric elements are bent to the second direction or in contrast to the second direction, form the madial wall of the perforation and can correspond to and push away
To the shaft.
5. actuation means according to claim 4, which is characterized in that the actuator is repeatedly moved along the closed path
In dynamic process, the shaft can repeatedly be pushed against by forming the madial wall of the perforation, and rotate the shaft.
6. actuation means according to claim 1, which is characterized in that the actuation means also include a moving part, institute
It states during actuator repeatedly moves along the closed path, the actuator can push against the moving part, and make described
Moving part is moved to an axial direction.
7. actuation means according to claim 1, which is characterized in that the actuation means also include a rotating member, institute
It states during actuator repeatedly moves along the closed path, the actuator can push against the rotating member, and make described
Rotating member rotates.
8. actuation means according to claim 2, which is characterized in that one of them described pedestal and the actuator are along one
First axle is set, another described pedestal is set with the actuator along a second axis, the not parallel institute of first axle
State second axis.
9. actuation means according to claim 8, which is characterized in that the first axle is perpendicular to the second axis.
10. actuation means according to claim 1, which is characterized in that first piezoelectric elements and second piezoelectric elements
Narrow side for laminated structure, and first piezoelectric elements is to face the upper surface that the substrate is provided with the actuator,
The narrow side of second piezoelectric elements is the upper surface for facing the actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526733.4U CN207557817U (en) | 2017-11-13 | 2017-11-13 | Actuation means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526733.4U CN207557817U (en) | 2017-11-13 | 2017-11-13 | Actuation means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557817U true CN207557817U (en) | 2018-06-29 |
Family
ID=62679081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721526733.4U Expired - Fee Related CN207557817U (en) | 2017-11-13 | 2017-11-13 | Actuation means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207557817U (en) |
-
2017
- 2017-11-13 CN CN201721526733.4U patent/CN207557817U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |