CN206370784U - A kind of supersonic motor of multiple stators planar array structure - Google Patents
A kind of supersonic motor of multiple stators planar array structure Download PDFInfo
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- CN206370784U CN206370784U CN201621416269.9U CN201621416269U CN206370784U CN 206370784 U CN206370784 U CN 206370784U CN 201621416269 U CN201621416269 U CN 201621416269U CN 206370784 U CN206370784 U CN 206370784U
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Abstract
The utility model provides a kind of supersonic motor of multiple stators planar array structure, it includes stator, rotor and output shaft, also include stator plate, the stator plate is provided with least two stators, the stator includes hollow track ring and piezoelectric ceramics module, the track ring is provided with the pad of annular spread, and the piezoelectric ceramics module includes N number of piezo ceramic element, and the piezo ceramic element is weldingly fixed on the pad of track ring；The gap for stator ring vibration is provided between the stator plate and track ring, the track ring is connected by connector with stator plate；Driving electrodes are additionally provided with stator plate, the electrode of the identical signal of piezo ceramic element is electrically connected with corresponding driving electrodes；The rotor is contacted with the surface of piezoelectric ceramics module, and stator driving rotor rotates to form power output.The technical solution of the utility model is easily formed multiple motor array drivings, and more preferably, efficiency utilization rate is high for motor operations life and reliability, and electromechanical conversion efficiency is high.
Description
Technical field
The utility model belongs to technical field of motors, more particularly to a kind of multiple stators planar array structure ultrasonic wave electricity
Machine.
Background technology
Supersonic motor is the inverse piezoelectric effect using piezoelectric ceramics, excites stator to be vibrated in ultrasonic frequency domain, by stator,
Rubbing action between rotor will vibrate a kind of non electromagnetic motor for the movement output driving load for being converted into rotor.With electromagnetism
Motor is compared, with small volume, lightweight, compact conformation, response fast, low noise, without electromagnetic interference, torque density be big, low speed
High pulling torque, the features such as can directly drive and advantage.It is applied to microrobot, automobile, Aero-Space, precision positioning at present
The multiple fields such as instrument, optical instrument, have broad application prospects.The rotary-type supersonic motor of traveling wave be current technology most into
It is ripe, using a most class supersonic motors, used piezo ceramic element is cirque structure, and according to it is certain will
Carry out area polarizing is sought, with reference to piezo ceramic element manufacturing process and ultrasonic motor stator technological requirement, it is difficult to expeditiously make
The piezoelectric ceramic ring of large scale area polarizing is produced, this just constrains the structure adaptability of such motor, also cause ultrasonic wave electricity
The application of machine is by a definite limitation.
Existing supersonic motor manufacturing process of stator is：The piezoelectric ceramic ring of area polarizing is adhered to epoxide-resin glue
Stator is formed on tooth-shape structure metallic matrix；There is following limitation in the ring-shaped traveling wave type ultrasonic wave motor constructed in this approach：
（1）Because ceramic ring is bonded on metallic matrix with epoxide-resin glue, one side stator dither is easily caused
Glue-line season cracking, motor operations reliability and life-span are relatively low, and another aspect glue-line can influence vibration in ceramic ring and becket
In transmission effect, motor operations efficiency is low.
（2）Its piezoelectric constant of the piezoceramic material of same performance and size d33>D31, using the piezoelectricity of loop configuration
It is vertical with direction of an electric field that ceramics work in lateral vibration mode, i.e. direction of vibration, utilizes piezoelectric constant d31 rather than d33, electromechanical
Conversion efficiency is low.
（3）Rotor is unilateral by transmission motion and the power of rubbing in stator, and constant wave vibration capacity usage ratio is relatively low.
（4）Existing supersonic motor structure type is single, is not easy to extension.
Utility model content
For above technical problem, the utility model discloses a kind of supersonic motor of multiple stators planar array structure,
It is easy to the multiple motor stators of welding manufacture in same stator plate, forms multiple motor array drivings, meeting specific occasion should
Use demand；Solve existing supersonic motor structure type single, the problem of being not easy to extension.
In this regard, the technical solution adopted in the utility model is：
A kind of supersonic motor of multiple stators planar array structure, it includes stator, rotor and output shaft, the multiple stators
The supersonic motor of planar array structure includes stator plate, and the stator plate is provided with least two stators, and the stator includes
Hollow track ring and piezoelectric ceramics module, the track ring are provided with the pad of annular spread, the piezoelectric ceramics module bag
N number of piezo ceramic element is included, the piezo ceramic element is weldingly fixed on the pad of track ring, wherein, N is 8 multiple；Institute
The gap being provided between track ring and stator plate for stator ring vibration is stated, the track ring is connected by connector with stator plate；
Driving electrodes, electrode and the corresponding driving electrodes electricity of the identical signal of the piezo ceramic element are additionally provided with the stator plate
Connection；The rotor is located on the piezoelectric ceramics module of the track ring and contacted with the surface of piezoelectric ceramics module, described
The middle part of output shaft through track ring is connected with rotor, and the stator driving rotor rotates to form power output；The piezoelectricity pottery
The PZT electrode face of porcelain element is vertical with the anchor ring of track ring, forms extensional vibration., will pressure by welding using this technical scheme
Electroceramics element is weldingly fixed on track ring, and the reliability of welding procedure is higher than adhesion process, can avoid existing ultrasonic wave
Glue-line ftractures caused by heating, vibrating fatigue in motor work, improves the working life and reliability of supersonic motor.Will
The multiple motor stators of welding manufacture on a stator plate matrix, form multiple motor array drivings, meet specific occasion application
Demand, it is easy to extend.
Wherein, the stator plate and track ring are preferably elastic matrix material.It is further preferred that the stator plate and fixed
Subring is made using pcb board.
Further improved as the utility model, the stator plate, connector, be equipped with printed circuit on track ring,
The pad is electrically connected by printed circuit with driving electrodes.
Further improved as the utility model, in each stator, the quantity of the connector is two or more.
It is preferred that, the connector is symmetrical centered on the axial line of track ring, and the width of the connector is 0.5
~3mm。
Further improved as the utility model, the quantity of the connector is three, and the width of the connector is
0.8~1.5mm.It is further preferred that the width of the connector is 0.9 ~ 1.1mm.
Further improved as the utility model, the connector is support connects hinge.
Further improved as the utility model, the electrode surface of the piezo ceramic element and the anchor ring of track ring hang down
Directly, extensional vibration is formed.
For identical piezoceramic material, extensional vibration utilizes d33, and oscillation crosswise utilizes d31, and d33 is bigger than d31
An order of magnitude or so, using this technical scheme, PZT electrode face vertically forms extensional vibration with stator anchor ring, utilizes piezoresistive material
The d33 of material, with higher electromechanical conversion efficiency.
Further improved as the utility model, the piezo ceramic element according to setting the corresponding pole of driving method
Change direction arrangement, be fixed on track ring, and be welded on the pad of track ring；Electrode between the piezo ceramic element leads to
Cross scolding tin to weld together, and make the upper surface of anchor ring being made up of on the track ring piezo ceramic element smooth.
It is preferred that, the piezo ceramic element is fixed on track ring by red glue.
It is preferred that, after piezo ceramic element welding, by polishing, by stator plate by piezo ceramic element and scolding tin
The anchor ring of composition polishes flat, and keeps the highly consistent of two face rings.Using this technical scheme, connect more reliable.
Further improved as the utility model, the quantity of the corresponding rotor of each track ring is two, the stator
The two sides of ring is equipped with pad, and the pad on two sides is welded with piezo ceramic element, and the positive and negative two sides of the track ring is by piezoelectricity
The anchor ring of ceramic component composition is highly identical；Described two rotors are contacted with the two sides of track ring simultaneously, and the output shaft is passed through
The middle part of track ring is simultaneously connected with two rotors, forms power output.
Existing Traveling Ultrasonic Motor contacts the structure of tooth form stator using single rotor, and this technical scheme is pressed from both sides using birotor
Hold stator structure, two rotors contact to form power output with the two sides of stator simultaneously, equivalent to add rotor and stator it
Between contact area, birotor clamp stator than single rotor contact stator contact area double, improve friction-driven ability,
Its efficiency utilization rate is higher.
Further improved as the utility model, stator plate and track ring are made using pcb board, according to 4 mutually drivings or 2
Phase driving method, the mode that identical signal electrode is linked together arranges connection circuit；Piezo ceramic element is according to driving side
Piezoelectric ceramics is fixed in stator plate by the corresponding polarised direction arrangement regulation of method with chip mounter with red glue, then in piezoelectric ceramics
Tin cream is coated on electrode pad between element, piezo ceramic element welding is completed by reflow soldering process or solder wave process,
Afterwards by polishing, the anchor ring that stator plate two sides is made up of piezo ceramic element and scolding tin polishes flat, and keeps two face rings
It is highly consistent.The rotor plate for being pasted with planar spring is clamped into stator plate, output shaft passes through rotor plate central panel spring
Hole, the other end is fixed with nut；Adjusting nut position, changes pretightning force size of two rotor plates to stator plate.
Further improved as the utility model, arrangement rule of the piezo ceramic element on the track ring on pad
Restrain and be：Positive two piezo ceramic elements of track ring are one group, and two piezo ceramic elements of track ring reverse side are pair
One group answered, the polarization positive pole position correspondence track ring reverse side piezo ceramic element of track ring front piezo ceramic element
Polarization negative pole position, the polarization of the polarization positive pole correspondence front piezo ceramic element of the track ring reverse side piezo ceramic element is born
Pole position, the electrode of the corresponding piezo ceramic element in the positive and negative two sides of track ring is electrically connected by circuit.
Wherein, the electrode of the corresponding piezo ceramic element in the positive and negative two sides of the track ring passes through the metallization in stator plate
The circuit connection in hole.
Further improved as the utility model, the piezo ceramic element and electrode on the track ring are stayed including 4 groups
Ripple driver element, respectively unit A, unit B, unit C and cells D, each unit include positive two piezoelectricity of track ring
Two piezo ceramic elements of ceramic component and track ring reverse side, the piezo ceramic element according to unit A, unit B, unit C,
Cells D is arranged in order, and is circularly set on the positive and negative of track ring；
In the unit A and unit B, the polarization positive pole of positive two piezo ceramic elements of track ring is towards two
The junction of individual piezo ceramic element, the polarization positive pole of two piezo ceramic elements of the track ring reverse side is located at two piezoelectricity
The outside of ceramic component；
In the unit C and cells D, the polarization negative pole of positive two piezo ceramic elements of track ring is towards two
The polarization positive pole of positive two piezo ceramic elements in the junction of piezo ceramic element, i.e. track ring is located at two piezoelectric ceramics
The outside of element, the polarization positive poles of two piezo ceramic elements of the track ring reverse side is towards two piezo ceramic elements
Junction；
The driving electrodes include being located at the positive polarization of track ring in SIN ends, COS ends and GND ends, the unit A just
Pole is connected with SIN ends, and the positive polarization positive pole of track ring is located in the unit B and is connected with COS ends, is located in the unit C
The positive polarization negative pole of track ring is connected with SIN ends, and the positive polarization negative pole of track ring is located in the cells D and is connected with COS ends
Connect；It is located at track ring front in the cells D, is connected in the polarization positive pole of the piezo ceramic element away from unit C with GND ends.
Using above-mentioned technical proposal, piezo ceramic element and electrode are divided into 4 groups of standing wave drives unit A, B, C, D successively, according to
Secondary application SIN, COS ,-SIN ,-COS signals；PZT polarization positive poles PZT poles in pumping signal, C, D group in positive A, B group
Change negative pole close to pumping signal；The PZT polarised directions of reverse side and front correspondence position are on the contrary, form two-phase-region casting.
Further improved as the utility model, the piezo ceramic element and electrode on the track ring are stayed including 4 groups
Ripple driver element, respectively unit a, unit b, unit c and unit d, each unit include positive two piezoelectricity of track ring
Two piezo ceramic elements of ceramic component and track ring reverse side, the piezo ceramic element according to unit a, unit b, unit c,
Unit d is arranged in order, and is circularly set on the positive and negative of track ring；
In the unit a, unit b, unit c, unit d, the polarization of positive two piezo ceramic elements of track ring
Positive pole is towards the junction of two piezo ceramic elements, the polarization positive pole of two piezo ceramic elements of the track ring reverse side
Positioned at the outside of two piezo ceramic elements, i.e., the polarization negative poles of two piezo ceramic elements of described track ring reverse side towards
The junction of two piezo ceramic elements；
The driving electrodes include being located at the positive polarization of track ring in SIN ends, COS ends and GND ends, the unit a just
Pole is connected with SIN ends in input SIN signals, the unit b is connected input positioned at the positive polarization positive pole of track ring with COS ends
The positive polarization positive pole of track ring is connected in input-SIN signals, the unit d fixed with SIN ends in COS signals, the unit c
The positive polarization positive pole of subring is connected input-COS signals with COS ends；It is located at track ring in the unit d positive and remote single
The polarization negative pole of first c piezo ceramic element is connected with GND ends.
Using this technical scheme, piezo ceramic element and electrode are divided into 4 groups of standing wave drives unit a, b, c, d successively, wherein
Two groups of application SIN signals of a, c, two groups of application COS signals excitations of b, d；PZT polarization positive poles are close to excitation in each group of track ring front
Signal, the PZT polarised directions of reverse side and front correspondence position mutually drive on the contrary, forming four.
Further improved as the utility model, the rotor includes rotor plate, and the middle part of the rotor plate is provided with flat
Flat spring, the output shaft is fixed after passing through the centre bore of planar spring by nut.
Further improved as the utility model, the stator is prepared using following steps：First by the piezoelectric ceramics
Element is arranged according to the corresponding polarised direction of driving method, and piezo ceramic element is fixed on into stator plate with red glue with chip mounter
On, tin cream then is coated on the electrode pad between piezo ceramic element, is completed by reflow soldering process or solder wave process
Piezo ceramic element is welded；Then anchor ring stator plate two sides being made up of piezo ceramic element and scolding tin polishes flat, and protects
Hold tow sides anchor ring it is highly consistent.Using this technical scheme, method is simple, easily implements and controls, uniformity and steady
Qualitative height.
Further improved as the utility model, the quantity of the stator is four, the quantity of the rotor is eight,
The quantity of output shaft is identical with stator quantity, is four, and two rotors clamp a stators and exported by output shaft, so can be with
It is scheduled at one on plate and carries out extending transversely being four supersonic motors, occupation of land is smaller, easy to use.
Compared with prior art, the beneficial effects of the utility model are：
First, the technical solution of the utility model, it is easy to the multiple motor stators of welding manufacture, shape in same stator plate
Into the driving of multiple motor arrays, specific occasion application demand is met；Solve existing supersonic motor structure type single, be not easy to
The problem of extension.
Second, using the technical solution of the utility model, several piezo ceramic elements are matched according to drive signal
Relation is configured, and the method welded using paster is welded on matrix, and welding procedure reliability is higher than adhesion process, it is to avoid
Glue-line ftractures caused by heating, vibrating fatigue in existing supersonic motor work, improves motor operations life and reliability.
3rd, in the prior art, Traveling Ultrasonic Motor contacts the structure of tooth form stator using single rotor, and this practicality is new
The technical scheme of type clamps stator structure using birotor, and two rotors contact to form power output with the two sides of stator simultaneously,
Equivalent to the contact area added between rotor and stator, friction-driven ability is improved, it has higher efficiency utilization rate.
4th, using the technical solution of the utility model, piezo ceramic element is welded on pcb board, PZT electrode face with
Stator anchor ring vertically forms extensional vibration, and using the d33 of piezoelectric, it has higher electromechanical conversion efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the supersonic motor of multiple stators planar array structure of the utility model embodiment 1
Figure.
Fig. 2 is the decomposition texture schematic diagram of single stator two rotors of correspondence of the utility model embodiment 1.
Fig. 3 be the utility model embodiment 1 Fig. 2 in I part rotor plate structural representation.
Fig. 4 be the utility model embodiment 1 Fig. 2 in II partial stator plate structural representation.
Fig. 5 is the arrangement regulation figure of the two-phase-region casting piezoelectric ceramics of the utility model embodiment 1.
Fig. 6 be the utility model embodiment 2 four mutually drive piezoelectric ceramics arrangement regulation figure.
Fig. 7 is the utility model stator plate ring surface deformation rule figure.
Embodiment
Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail.
Embodiment 1
As shown in Fig. 1 ~ Fig. 4, a kind of supersonic motor of multiple stators planar array structure, it includes stator 1, the and of rotor 2
Output shaft 3, the supersonic motor of the multiple stators planar array structure includes stator plate 10, and the stator plate 10 is provided with least
Two stators 1, two rotors 2 of each stator correspondence；The stator 1 includes hollow track ring 12 and piezoelectric ceramics module, institute
The pad that track ring 12 is provided with annular spread is stated, the piezoelectric ceramics module includes N number of piezo ceramic element 13, the piezoelectricity
Ceramic component 13 is weldingly fixed on the pad of track ring 12, wherein, N is 8 multiple；The track ring 12 and stator plate 10 it
Between be provided with for track ring 12 vibrate gap 14, the track ring 12 is by supporting connects hinge 15 to be connected with stator plate 10；Institute
State and driving electrodes are additionally provided with stator plate 10, electrode and the corresponding driving electrodes of the identical signal of the piezo ceramic element 13
16 electrical connections；The rotor 2 is located on the piezoelectric ceramics module of the track ring 12 and connect with the surface of piezoelectric ceramics module
Touch, the middle part of the output shaft 3 through track ring 12 is connected with rotor 2, it is defeated that the rotation of stator driving rotor 2 forms power
Go out；The PZT electrode face of the piezo ceramic element 13 is vertical with the anchor ring of track ring 12, forms extensional vibration.It is preferred that, it is described
The quantity for supporting connects hinge 15 is three, and the support connects hinge 15 is symmetrically divided centered on the axial line of track ring 12
Cloth, the width of the support connects hinge 15 is 0.8 ~ 1.5mm.It is preferred that, the support connects hinge 15 is three.
As shown in Fig. 1 ~ Fig. 4, the rotor 2 includes rotor plate 21, and the middle part of the rotor plate 21, which is pasted, is provided with flat board bullet
Spring 22, stator plate 10 is clamped by the rotor plate 21 for being pasted with planar spring 22, and output shaft 3 passes through the middle part of track ring 12, then wears
The Kong Houyong nuts 4 for crossing the middle part of central panel spring 22 of rotor plate 21 are fixed；The position of adjusting nut 4, changes two rotor plates 21
To the pretightning force size of stator plate 10.
As shown in Fig. 1 ~ Fig. 4, the stator plate 10, support connects hinge 15, track ring 12 are made using pcb board, described
Stator plate 10, support connects hinge 15, it is equipped with printed circuit on track ring 12, the printed circuit is connected with pad, described
Be additionally provided with driving electrodes 16 in stator plate 10, the electrode of the identical signal of the piezo ceramic element 13 by printed circuit with it is right
The driving electrodes 16 answered are electrically connected.The PZT electrode face of the piezo ceramic element 13 is vertical with the anchor ring of track ring 12, forms vertical
To vibration.The piezo ceramic element 13 is arranged according to the corresponding polarised direction of driving method of setting, is fixed on by red glue 5
On track ring 12, and it is welded on the pad of track ring 12；Electrode between the piezo ceramic element 13 is welded by scolding tin
Together, and make the upper surface of anchor ring being made up of on the track ring 12 piezo ceramic element 13 smooth.
As shown in Fig. 1 ~ Fig. 4, the quantity of the corresponding rotor 2 of each stator 1 is two.In each stator 1, the track ring
12 two sides is equipped with pad, and piezo ceramic element 13 will with chip mounter according to the corresponding polarised direction arrangement regulation of driving method
Piezo ceramic element 13 is fixed on track ring 12 with red glue 5, is then applied on the electrode pad between piezo ceramic element 13
Tin cream is covered, the welding of piezo ceramic element 13 is completed by reflow soldering process or solder wave process, scolding tin electrode 17 is formed, afterwards
By polishing, the anchor ring that the two sides of stator plate 10 is made up of piezo ceramic element 13 and scolding tin electrode 17 polishes flat, and keeps
The anchor ring that the positive and negative two sides of the track ring 12 is made up of piezo ceramic element 13 is highly identical.Described two rotors 2 simultaneously with
The two sides contact of track ring 12, the output shaft 3 is connected through the middle part of track ring 12 and with two rotors 2, forms power defeated
Go out.
As shown in figure 5, arrangement regulation of the piezo ceramic element 13 on pad is：The track ring 12 positive two
Individual piezo ceramic element 13 is one group, and two piezo ceramic elements 13 of the reverse side of track ring 12 are corresponding one group, the stator
The polarization of the polarization positive pole 131 position correspondence reverse side piezo ceramic element 13 of track ring 12 of the front piezo ceramic element 13 of ring 12 is born
The position of pole 132, the polarization corresponding front piezo ceramic element 13 of positive pole 131 of the reverse side piezo ceramic element 13 of track ring 12
Polarization negative pole 132 position, the electrode of the corresponding piezo ceramic element 13 in the positive and negative two sides position of track ring 12 passes through on track ring 12
Plated through-hole circuit be electrically connected.
As shown in figure 5, according to two-phase-region casting method, the mode that identical signal electrode is linked together arranges connection electricity
Road.Specifically, the piezo ceramic element 13 includes 4 groups of standing wave drive units, respectively unit A, unit B, unit C and list
First D, each unit includes two piezoelectricity pottery of 12 positive two piezo ceramic elements 13 of track ring and the reverse side of track ring 12
Porcelain element 13, the piezo ceramic element 13 is arranged in order according to unit A, unit B, unit C, cells D, and is circularly set fixed
On the positive and negative of subring 12；
In unit A and unit B, the equal court of polarization positive pole 131 of described 12 positive two piezo ceramic elements 13 of track ring
The junction of two piezo ceramic elements 13, that is, the positive pole 131 that polarizes is relative, and polarization negative pole 132 is remote；The track ring 12 is anti-
The polarization positive pole 131 of two piezo ceramic elements 13 in face is located at the outside of two piezo ceramic elements 13, that is, polarize negative pole 132
Relatively, polarization positive pole 131 is remote；
In unit C and cells D, the equal court of polarization negative pole 132 of described 12 positive two piezo ceramic elements 13 of track ring
The junction of two piezo ceramic elements 13, that is, the negative pole 132 that polarizes is relative, and polarization positive pole 131 is remote；The track ring 12 is anti-
The polarization positive pole 131 of two piezo ceramic elements 13 in face polarizes just towards the junction of two piezo ceramic elements 13
Pole 131 is relative, and polarization negative pole 132 is remote；
The driving electrodes 16 include being located at the positive pole of track ring 12 in SIN ends, COS ends and GND ends, the unit A
Change positive pole 131 to be connected with SIN ends, the positive polarization positive pole 131 of track ring 12 is located in the unit B and is connected with COS ends, it is described
It is located at the positive polarization negative pole 132 of track ring 12 in unit C to be connected with SIN ends, track ring 12 is located in the cells D positive
Polarization negative pole 132 is connected with COS ends；It is located at the front of track ring 12 in the cells D, in the piezo ceramic element away from unit C
13 polarization positive pole 131 is connected with GND ends.
Embodiment 2
On the basis of embodiment 1, this example and embodiment 1 are not all using four phase driving methods, on the track ring 12
Arrangement regulation and signal connected mode of the piezo ceramic element 13 on pad are different from embodiment 1, are specially：
As shown in fig. 6, the piezo ceramic element 13 and electrode include 4 groups of standing wave drive units, respectively unit a, list
First b, unit c and unit d, each unit include 12 positive two piezo ceramic elements 13 of track ring and the reverse side of track ring 12
Two piezo ceramic elements 13, the piezo ceramic element 13 is arranged in order according to unit a, unit b, unit c, unit d, and
It is circularly set on the positive and negative of track ring 12；
In the unit a, unit b, unit c, unit d, described 12 positive two piezo ceramic elements 13 of track ring
Positive pole 131 polarize towards the junction of two piezo ceramic elements 13, that is, polarizing, positive pole 131 is relative, and polarization negative pole 132 is remote
From；The polarization negative pole 132 of two piezo ceramic elements 13 of the reverse side of track ring 12 is towards two piezo ceramic elements 13
Junction, that is, polarizing, negative pole 132 is relative, and polarization positive pole 131 is remote；
The driving electrodes 16 include being located at the positive pole of track ring 12 in SIN ends, COS ends and GND ends, the unit a
Change positive pole 131 to be connected with SIN ends in input SIN signals, the unit b positioned at the positive polarization positive pole 131 of track ring 12 and COS
The positive polarization positive pole 131 of track ring 12 is connected input-SIN letters with SIN ends in end connection input COS signals, the unit c
Number, the positive polarization positive pole 131 of track ring 12 is connected input-COS signals with COS ends in the unit d；The unit d middle positions
It is connected in the polarization negative pole 132 of the positive and remote unit c of track ring 12 piezo ceramic element 13 with GND ends.
Two kinds of driving methods of embodiment 1 and embodiment 2, i.e. two-phase-region casting and four mutually drives, in single traveling wave wavelength,
According to the inverse piezoelectric effect of piezoceramic material, each piezo ceramic element 13 will be deformed, and make to be formed on track ring 12
Deformation rule as shown in Figure 7, wherein, embodiment 2 four mutually drive in unit a, b, c, d difference corresponding diagram 7 in A, B, C,
D；According to annular traveling wave ultrasonic motor operation principle, the stator 1 can drive rotor 2 to rotate.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to protection domain of the present utility model.
Claims (9)
1. a kind of supersonic motor of multiple stators planar array structure, it includes stator, rotor and output shaft, it is characterised in that：
The supersonic motor of the multiple stators planar array structure includes stator plate, and the stator plate is provided with least two stators, institute
Stating stator includes hollow track ring and piezoelectric ceramics module, and the track ring is provided with the pad of annular spread, the piezoelectricity
Ceramic module includes N number of piezo ceramic element, and the piezo ceramic element is weldingly fixed on the pad of track ring, wherein, N is
8 multiple；The gap for stator ring vibration is provided between the track ring and stator plate, the track ring is by connector with determining
Daughter board is connected；Be additionally provided with driving electrodes in the stator plate, the electrode of the identical signal of the piezo ceramic element with it is corresponding
Driving electrodes are electrically connected；The rotor be located at the track ring piezoelectric ceramics module on and with the surface of piezoelectric ceramics module
Contact, the middle part of the output shaft through track ring is connected with rotor, and the stator driving rotor rotates to form power output；Institute
The PZT electrode face for stating piezo ceramic element is vertical with the anchor ring of track ring, forms extensional vibration.
2. the supersonic motor of multiple stators planar array structure according to claim 1, it is characterised in that：The stator
Plate, connector, it is equipped with printed circuit on track ring, the pad is electrically connected by printed circuit with driving electrodes.
3. the supersonic motor of multiple stators planar array structure according to claim 1, it is characterised in that：Each stator
In, the quantity of the connector is two or more, and the connector is symmetrical centered on the axial line of track ring, the company
The width of fitting is 0.5 ~ 3mm.
4. the supersonic motor of multiple stators planar array structure according to claim 3, it is characterised in that：The connector
Quantity be three, the width of the connector is 0.8 ~ 1.5mm.
5. the supersonic motor of the multiple stators planar array structure according to claim 1 ~ 4 any one, it is characterised in that：
The piezo ceramic element is arranged according to the corresponding polarised direction of driving method of setting, is fixed on by red glue on track ring,
And be welded on the pad of track ring；Electrode between the piezo ceramic element is welded together by scolding tin, and is made described
The upper surface for the anchor ring being made up of on track ring piezo ceramic element is smooth.
6. the supersonic motor of multiple stators planar array structure according to claim 5, it is characterised in that：Each track ring
The quantity of corresponding rotor is two, and the two sides of the track ring is equipped with pad, and the pad on two sides is welded with piezoelectric ceramics
Element, the anchor ring that the positive and negative two sides of the track ring is made up of piezo ceramic element is highly identical；Described two rotors respectively with
The upper and lower surface contact of track ring, the output shaft is connected through the middle part of track ring and with two rotors, forms power defeated
Go out；Arrangement regulation of the piezo ceramic element on pad be：Positive two piezo ceramic elements of track ring are one
Group, two piezo ceramic elements of track ring reverse side are corresponding one group, the pole of the positive piezo ceramic element of track ring
Change the polarization negative pole position of positive pole position correspondence track ring reverse side piezo ceramic element, the track ring reverse side piezo ceramic element
Polarization positive pole position correspondence front piezo ceramic element polarization negative pole position, the corresponding piezoelectricity pottery in the positive and negative two sides of track ring
The electrode of porcelain element is electrically connected by circuit.
7. the supersonic motor of multiple stators planar array structure according to claim 6, it is characterised in that：The track ring
Upper piezo ceramic element and electrode include 4 groups of standing wave drive units, respectively unit A, unit B, unit C and cells D, Mei Gedan
Member includes two piezo ceramic elements of positive two piezo ceramic elements of track ring and track ring reverse side, the piezoelectricity pottery
Porcelain element is arranged in order according to unit A, unit B, unit C, cells D, and is circularly set on the positive and negative of track ring；
In the unit A and unit B, the polarization positive pole of positive two piezo ceramic elements of track ring is towards two pressures
The junction of electroceramics element, the polarization positive pole of two piezo ceramic elements of the track ring reverse side is located at two piezoelectric ceramics
The outside of element；
In the unit C and cells D, the polarization negative pole of positive two piezo ceramic elements of track ring is towards two pressures
The junction of electroceramics element, the polarization positive pole of two piezo ceramic elements of the track ring reverse side is towards two piezoelectricity potteries
The junction of porcelain element；
The driving electrodes include SIN ends, COS ends and GND ends, be located in the unit A the positive polarization positive pole of track ring with
SIN ends are connected, and the positive polarization positive pole of track ring is located in the unit B and is connected with COS ends, stator is located in the unit C
The positive polarization negative pole of ring is connected with SIN ends, and the positive polarization negative pole of track ring is located in the cells D and is connected with COS ends；Institute
State and be located at track ring front in cells D, be connected in the polarization positive pole of the piezo ceramic element away from unit C with GND ends.
8. the supersonic motor of multiple stators planar array structure according to claim 6, it is characterised in that：The track ring
On piezo ceramic element and electrode include 4 groups of standing wave drive units, respectively unit a, unit b, unit c and unit d, each
Unit includes two piezo ceramic elements of positive two piezo ceramic elements of track ring and track ring reverse side, the piezoelectricity
Ceramic component is arranged in order according to unit a, unit b, unit c, unit d, and is circularly set on the positive and negative of track ring；
In the unit a, unit b, unit c, unit d, the polarization positive pole of positive two piezo ceramic elements of track ring
Towards the junction of two piezo ceramic elements, the equal court of polarization negative pole of two piezo ceramic elements of the track ring reverse side
The junction of two piezo ceramic elements；
The driving electrodes include SIN ends, COS ends and GND ends, be located in the unit a the positive polarization positive pole of track ring with
It is located at the positive polarization positive pole of track ring in SIN ends connection input SIN signals, the unit b and input COS letters is connected with COS ends
Number, the positive polarization positive pole of track ring is being connected in input-SIN signals, the unit d track ring just with SIN ends in the unit c
The polarization positive pole in face is connected input-COS signals with COS ends；It is located at the positive and remote unit c of track ring pressure in the unit d
The polarization negative pole of electroceramics element is connected with GND ends.
9. the supersonic motor of multiple stators planar array structure according to claim 5, it is characterised in that：The rotor bag
Rotor plate is included, the middle part of the rotor plate is provided with planar spring, and the output shaft passes through spiral shell after passing through the centre bore of planar spring
Mother is fixed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533250A (en) * | 2016-12-21 | 2017-03-22 | 深圳大学 | Ultrasonic motor of multi-stator planar array structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106533250A (en) * | 2016-12-21 | 2017-03-22 | 深圳大学 | Ultrasonic motor of multi-stator planar array structure |
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