CN112838783A - Piezoelectric vibration motor - Google Patents
Piezoelectric vibration motor Download PDFInfo
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- CN112838783A CN112838783A CN202110019363.XA CN202110019363A CN112838783A CN 112838783 A CN112838783 A CN 112838783A CN 202110019363 A CN202110019363 A CN 202110019363A CN 112838783 A CN112838783 A CN 112838783A
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- 239000000919 ceramic Substances 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/002—Driving devices, e.g. vibrators using only longitudinal or radial modes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/005—Mechanical details, e.g. housings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The embodiment of the application provides a piezoelectric vibration motor, which comprises a base, a mass block, an elastic sheet and an electric control assembly. The mass block is movably arranged on the base, the elastic piece is connected with a piezoelectric ceramic piece and comprises a first elastic piece and a second elastic piece which are arranged on two sides of the mass block, one end of the first elastic piece and one end of the second elastic piece are both connected with the base, the other end of the first elastic piece is connected with the first end of the mass block, and the other end of the second elastic piece is connected with the second end of the mass block; the electric control assembly is electrically connected with the piezoelectric ceramic piece. The embodiment of the application provides a piezoelectric vibration motor all be connected with the piezoceramics piece on first flexure strip and the second flexure strip, the piezoceramics piece circular telegram can pass through after warping first flexure strip and second flexure strip drive quality piece lateral vibration has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Description
Technical Field
The application belongs to the technical field of vibrating devices, and particularly relates to a piezoelectric vibration motor.
Background
With the continuous development of communication technology, electronic devices have more and more powerful functions. It is becoming more and more common to interact information between electronic devices and users with vibratory feedback.
In the case of cellular phones, each cellular phone is equipped with a vibration motor. When the environment is noisy, the mobile phone can effectively remind people of incoming call information and short message information in time through the vibration function generated by the vibration motor. The mobile phone vibration motor mainly used in the market at present is a rotor motor consisting of a motor and a counterweight eccentric wheel arranged on a rotor shaft of the motor, and the rotor motor has slow starting response, weak braking sensitivity and narrow resonance bandwidth, can not realize the layering among a plurality of vibrations and can not meet the complexity requirement of the vibration.
Piezoelectric motors have gradually replaced rotor motors due to their flexible size design, short response time and high energy efficiency. However, the conventional piezoelectric motor has poor structural stability in the vibration process, so that the vibration amount is limited, and the application range of the piezoelectric motor is limited.
Disclosure of Invention
It is an object of embodiments of the present application to provide a new technical solution for a piezoelectric vibration motor.
According to a first aspect of the present application, there is provided a piezoelectric vibration motor including:
a base;
the mass block is movably arranged on the base;
the elastic piece is connected with a piezoelectric ceramic piece and comprises a first elastic piece and a second elastic piece which are arranged on two sides of the mass block, one end of the first elastic piece and one end of the second elastic piece are both connected with the base, the other end of the first elastic piece is connected with the first end of the mass block, and the other end of the second elastic piece is both connected with the second end of the mass block;
and the electric control assembly is electrically connected with the piezoelectric ceramic piece.
Optionally, the elastic sheet has a thickness in the range of 0.1-0.3 mm.
Optionally, the piezoelectric ceramic plate is bonded to at least one side surface of the elastic plate.
Optionally, the piezoelectric ceramic sheet is a multilayer piezoelectric ceramic sheet, and the thickness range of the multilayer piezoelectric ceramic sheet is 0.1-0.3 mm.
Optionally, the base and the mass are laser welded to the elastomeric sheet.
Optionally, a projection of the mass on the base is zigzag.
Optionally, the automatically controlled subassembly includes first connecting terminal, second connecting terminal and connects the zigzag FPC of first connecting terminal and second connecting terminal, first connecting terminal set up in first flexure strip is kept away from one side of quality piece, second connecting terminal set up in the second flexure strip is kept away from one side of quality piece, zigzag FPC set up in the quality piece with between the base.
Optionally, the base is in a flat plate shape, the first elastic piece comprises a first vertical plate and a first transverse plate, the second elastic piece comprises a second vertical plate and a second transverse plate, one end of the first vertical plate is connected with the base through the first transverse plate, and one end of the second vertical plate is connected with the base through the second transverse plate;
the other end of the first vertical plate is connected with the first end, and the other end of the second vertical plate is connected with the second end.
Optionally, the first elastic sheet further comprises a first sub-riser, the second elastic sheet further comprises a second sub-riser, the other end of the first riser is connected with the first end through the first sub-riser, and the other end of the second riser is connected with the second end through the second sub-riser.
Optionally, the base is flat, be provided with third jack and fourth jack on the base, first flexure strip with the second flexure strip all is the shape of falling L, the one end of first flexure strip with the laser-beam welding is connected after the third jack is pegged graft, the one end of second flexure strip with the laser-beam welding is connected after the fourth jack is pegged graft.
Optionally, the base is U-shaped, first flexure strip and second flexure strip are in the projection of base all is L shape, the one end of first flexure strip with the one end of base is connected, the one end of second flexure strip with the other end of base is connected.
Optionally, the base further comprises an upper cover, projections of the first elastic piece and the second elastic piece on the base are both in a U shape, and one end of the first elastic piece and one end of the second elastic piece are respectively connected with two opposite sides of the upper cover.
One technical effect of the embodiment of the application is as follows:
the embodiment of the application provides a piezoelectric vibration motor, piezoelectric vibration motor all be connected with the piezoceramics piece on first flexure strip and the second flexure strip, the one end of first flexure strip with the one end of second flexure strip all with the base is connected, the other end of first flexure strip with the first end of quality piece is connected, the other end of second flexure strip with the second end of quality piece is connected, can pass through after the piezoceramics piece circular telegram warp first flexure strip and second flexure strip drive quality piece lateral vibration has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is an exploded view of a first piezoelectric vibration motor according to an embodiment of the present disclosure;
fig. 2 is a perspective view of a first piezoelectric vibration motor according to an embodiment of the present application;
fig. 3 is a perspective view of a second piezoelectric vibration motor according to an embodiment of the present application;
fig. 4 is a perspective view of a third piezoelectric vibration motor provided in an embodiment of the present application;
fig. 5 is a perspective view of a fourth piezoelectric vibration motor provided in an embodiment of the present application;
fig. 6 is a perspective view of a fifth piezoelectric vibration motor according to an embodiment of the present application.
Wherein: 1-a base; 11-a base plate; 12-a side wall; 2-a mass block; 3-an elastic sheet; 31-a first elastic sheet; 311-a first riser; 312-a first cross plate; 313-a first sub-riser; 32-a first elastic sheet; 321-a second riser; 322-a second transverse plate; 323-second sub-riser; 4-piezoelectric ceramic plate; 5-an electronic control component; 51-first connection terminal; 52-second connection terminal; 53-zigzag FPC; 6-upper cover.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1 to 6, an embodiment of the present application provides a piezoelectric vibration motor including:
The mass block 2 is movably disposed on the base 1, specifically, the mass block 2 may be disposed on the base 1 and not connected to the base 1, or the mass block 2 may be connected to the base 1 through an elastic material, which is not limited in the embodiment of the present application.
The elastic piece 3 is connected with a piezoelectric ceramic piece 4, the elastic piece 3 includes a first elastic piece 31 and a second elastic piece 32 which are arranged on two sides of the mass block 2, specifically, the first elastic piece 31 and the second elastic piece 32 are arranged on two opposite sides of the mass block 2, one end of the first elastic piece 31 and one end of the second elastic piece 32 are both connected with the base 1, the other end of the first elastic piece 31 is connected with a first end of the mass block 2, the other end of the second elastic piece 32 is connected with a second end of the mass block 2, and the second end is the end of the mass block 2 away from the first end; automatically controlled subassembly 5 with piezoceramics piece 4 electricity is connected, automatically controlled subassembly 5 can include subassembly such as circuit board, battery, piezoceramics piece 4 can warp under the circumstances of circular telegram, because first flexure strip 31 and second flexure strip 32 set up in the both sides of quality piece 2, piezoceramics piece 4 can pass through after warping flexure strip 3 drives 2 lateral vibration of quality piece realizes the vibration effect of piezoelectricity vibrating motor.
The embodiment of the application provides a piezoelectric vibration motor 2 both sides of quality piece are provided with first flexure strip 31 and second flexure strip 32, all be connected with piezoceramics piece 4 on first flexure strip 31 and the second flexure strip 32, first flexure strip 31 one end with second flexure strip 32's one end all with base 1 is connected, first flexure strip 31 the other end with the first end of quality piece 2 is connected, the other end of second flexure strip 32 with the second end of quality piece 2 is connected, piezoceramics piece 4 warp the back can pass through first flexure strip 31 and second flexure strip 32 drive 2 both ends transverse vibration of quality piece has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Optionally, the thickness of the elastic sheet 3 ranges from 0.1 to 0.3 mm.
Specifically, the material of the elastic sheet 3 may be a metal sheet, such as a stainless steel sheet. The thickness of the flexible sheet 3 can be controlled to be in a small range of 0.1-0.3mm due to the high structural strength of the metal sheet, and the thickness of the flexible sheet 3 is also required to be small in order to ensure the flexibility of the flexible sheet 3 in vibrating. The metal sheet can improve the vibration flexibility of the elastic sheet 3 on the basis of ensuring the structural strength of the elastic sheet 3.
Optionally, the piezoceramic sheet 4 is bonded to at least one side surface of the elastic sheet 3.
Specifically, when the piezoelectric ceramic plate 4 is connected to the elastic plate 3, the piezoelectric ceramic plate 4 may be bonded to only the inner side of the elastic plate 3, so as to achieve the purpose of preventing the piezoelectric ceramic plate 4 from accidentally falling; in addition, the electric ceramic plate 4 may be only adhered to the outer side of the elastic plate 3, so as to provide a larger deformation space for the electric ceramic plate 4 and improve the vibration amplitude of the elastic plate 3. The piezoelectric ceramic plates 4 can be adhered to the inner side and the outer side of the elastic plate 3 to form a push-pull piezoelectric drive, so that the vibration amplitude of the elastic plate 3 is increased, and the vibration quantity of the piezoelectric vibration motor is increased.
Optionally, the piezoelectric ceramic plate 4 is a multilayer piezoelectric ceramic plate, and the thickness range of the multilayer piezoelectric ceramic plate is 0.1-0.3 mm.
Specifically, the piezoelectric ceramic sheet 4 is a multilayer piezoelectric ceramic sheet; in addition, piezoceramics piece 4 can adopt the piezoceramics piece of bipolar electrode structure, and the piezoceramics piece of bipolar electrode structure can promote piezoelectric vibration motor's vibration volume satisfies when piezoelectric vibration motor vibration performance reduces piezoceramics piece 4's size thickness.
Optionally, the base 1 and the mass 2 are laser welded to the elastic sheet 3.
Specifically, the one end of flexure strip 3 with base 1 is connected, the other end of flexure strip 3 with quality piece 2 is connected, the concrete connected mode at 3 both ends of flexure strip can adopt laser welding, for example base 1 with 3 laser welding of flexure strip, quality piece 2 with 3 laser welding of flexure strip, the connected mode of laser welding can increase piezoelectric vibration motor's joint strength guarantees piezoelectric vibration motor's structural stability.
Alternatively, referring to fig. 1 to 6, the projection of the mass 2 on the base 1 is zigzag.
Specifically, the one end of first flexure strip 31 with the one end of second flexure strip 32 all with under the condition that base 1 is connected, the other end of first flexure strip 31 with the first end of quality piece 2 is connected, the other end of second flexure strip 32 with the second end of quality piece 2 is connected, first end and second end can all be the zigzag the terminal surface at 2 both ends of quality piece, also can be the zigzag the side of 2 both ends tip of quality piece, first end and second end are kept away from each other, can improve the arm of force of 2 vibrations of quality piece makes quality piece 2 realizes effectual transverse vibration under the condition that both ends are connected, improves the vibration quantity of quality piece 2.
Optionally, referring to fig. 1, the electronic control assembly 5 includes a first connection terminal 51, a second connection terminal 52, and a zigzag FPC 53 connecting the first connection terminal 51 and the second connection terminal 52, the first connection terminal 51 is disposed on a side of the first elastic sheet 31 away from the mass 2 and electrically connected to the piezoelectric ceramic sheet 4, the second connection terminal 52 is disposed on a side of the second elastic sheet 32 away from the mass 2 and electrically connected to the piezoelectric ceramic sheet 4, and the zigzag FPC 53 is disposed between the mass 2 and the base 1.
Specifically, first connecting terminal 51 and second connecting terminal 52 can be the tin cream, piezoceramics piece 4 with zigzag FPC 53 passes through the tin cream bonding, not only can realize piezoceramics piece 4 with automatically controlled subassembly 5's nimble is connected, can also guarantee automatically controlled subassembly 5 is right piezoceramics piece 4 circular telegram deformation's effective control.
Optionally, referring to fig. 1, fig. 2 and fig. 4, the base 1 is in a flat plate shape, the first elastic piece 31 includes a first vertical plate 311 and a first horizontal plate 312, the second elastic piece 32 includes a second vertical plate 321 and a second horizontal plate 322, one end of the first vertical plate 311 is connected to the base 1 through the first horizontal plate 312, and one end of the second vertical plate 321 is connected to the base 1 through the second horizontal plate 322; the other end of the first riser 311 is connected to the first end of the mass 2, and the other end of the second riser 321 is connected to the second end of the mass 2.
Specifically, in order to ensure that on the flat plate structure basis of the base 1, the strength and the stability of the elastic piece 3 and the base 1 connection are improved, the first transverse plate 312 and the second transverse plate 322 may be arranged such that the first transverse plate 312 and the second transverse plate are parallel to the base 1, and when the first transverse plate 312 and the second transverse plate 322 are attached to the base 1, the connection area of the first elastic piece 31 and the second elastic piece 32 to the base 1 may be improved, and then the connection strength of the first elastic piece 31 and the second elastic piece 32 to the base 1 may be improved.
Further, referring to fig. 4, the first elastic sheet 31 further includes a first sub-riser 313, the second elastic sheet 32 further includes a second sub-riser 323, the first sub-riser 313 may be parallel to an end surface of one end of the mass 2, the other end of the first riser 311 is connected to the first end of the mass 2 through the first sub-riser 313, the second sub-riser 323 may be parallel to an end surface of the other end of the mass 2, and the other end of the second riser 321 is connected to the second end of the mass 2 through the second sub-riser 323, so as to improve the connection strength between the first elastic sheet 31 and the second elastic sheet 32 and the base 1.
Optionally, referring to fig. 3, the base 1 is flat, a third insertion hole and a fourth insertion hole are formed in the base 1, the first elastic sheet 31 and the second elastic sheet 32 are both in an inverted L shape, one end of the first elastic sheet 31 is connected to the third insertion hole through laser welding after being plugged, one end of the second elastic sheet 32 is connected to the fourth insertion hole through laser welding after being plugged, the other end of the first elastic sheet 31 is connected to the first end of the mass block 2, the other end of the second elastic sheet 32 is connected to the second end of the mass block 2, and the connection strength and the connection stability between the first elastic sheet 31 and the base 1 and between the second elastic sheet 32 and the base 1 can be guaranteed through the connection manner of laser welding after being plugged.
Optionally, referring to fig. 5, the base 1 is U-shaped, projections of the first elastic sheet 31 and the second elastic sheet 32 on the base 1 are both L-shaped, one end of the first elastic sheet 31 is connected to one end of the base 1, one end of the second elastic sheet 32 is connected to the other end of the base 1, the other end of the first elastic sheet 31 is connected to the first end of the mass block 2, and the other end of the second elastic sheet 32 is connected to the second end of the mass block 2.
Specifically, base 1 is the U font can be base 1 relative both ends all are provided with the lateral wall, the one end and a lateral wall of first flexure strip 31 are parallel, the one end of first flexure strip 31 with can improve when the laminating of a lateral wall of base 1 is connected first flexure strip 31 with base 1's joint strength, the one end and another lateral wall of second flexure strip 32 are parallel, the one end of second flexure strip 32 with can improve when the laminating of another lateral wall of base 1 is connected second flexure strip 32 with base 1's joint strength.
Optionally, referring to fig. 6, the base 1 of the piezoelectric vibration motor further includes a base body and an upper cover 6, the upper cover 6 is fastened to the base body, projections of the first elastic sheet 31 and the second elastic sheet 32 on the base 1 are both U-shaped, one end of the first elastic sheet 31 and one end of the second elastic sheet 32 are respectively connected to two opposite sides of the upper cover 6, the other end of the first elastic sheet 31 is connected to the first end of the mass block 2, and the other end of the second elastic sheet 32 is connected to the second end of the mass block 2.
Specifically, the materials of the upper cover 6 and the base body may be both metal materials, such as 301 stainless steel materials. First flexure strip 31 and second flexure strip 32 are in under the condition that projection on the base 1 all is the U font, the one end of first flexure strip 31 can with welded connection after one side of upper cover 6 is parallel and laminating each other, the one end of second flexure strip 32 can with welded connection after the opposite side of upper cover 6 is parallel and laminating each other, the other end of first flexure strip 31 can with the first end terminal surface of quality piece 2 is parallel, the other end of second flexure strip 32 can with the second end terminal surface of quality piece 2 is parallel, improves first flexure strip 31 with second flexure strip 32 with joint strength between quality piece 2.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (12)
1. A piezoelectric vibration motor, characterized by comprising:
a base (1);
the mass block (2), the mass block (2) is movably arranged on the base (1);
the elastic piece (3) is connected with a piezoelectric ceramic piece (4), the elastic piece (3) comprises a first elastic piece (31) and a second elastic piece (32) which are arranged on two sides of the mass block (2), one end of the first elastic piece (31) and one end of the second elastic piece (32) are both connected with the base (1), the other end of the first elastic piece (31) is connected with a first end of the mass block (2), the other end of the second elastic piece (32) is connected with a second end of the mass block (2), and the second end is the end, away from the first end, of the mass block (2);
the electronic control component (5), the electronic control component (5) with piezoceramics piece (4) electricity is connected.
2. A piezoelectric vibration motor according to claim 1, wherein the thickness of the elastic sheet (3) is in the range of 0.1-0.3 mm.
3. The piezoelectric vibration motor according to claim 1, wherein the piezoelectric ceramic sheet (4) is bonded to at least one side surface of the elastic sheet (3).
4. A piezoelectric vibration motor according to claim 1, wherein the piezoelectric ceramic sheet (4) is a multilayer piezoelectric ceramic sheet having a thickness in the range of 0.1 to 0.3 mm.
5. A piezoelectric vibration motor according to claim 1, wherein the base (1) and the mass (2) are laser welded with the elastic sheet (3).
6. Piezoelectric vibration motor according to claim 1, characterized in that the projection of the mass (2) on the base (1) is zigzag-shaped.
7. The piezoelectric vibration motor according to claim 6, wherein the electric control assembly (5) includes a first connection terminal (51), a second connection terminal (52), and a zigzag FPC (53) connecting the first connection terminal (51) and the second connection terminal (52), the first connection terminal (51) being disposed on a side of the first elastic sheet (31) away from the mass block (2), the second connection terminal (52) being disposed on a side of the second elastic sheet (32) away from the mass block (2), the zigzag FPC (53) being disposed between the mass block (2) and the base (1).
8. The piezoelectric vibration motor according to claim 1, wherein the base (1) has a flat plate shape, the first elastic piece (31) includes a first vertical plate (311) and a first horizontal plate (312), the second elastic piece (32) includes a second vertical plate (321) and a second horizontal plate (322), one end of the first vertical plate (311) is connected to the base (1) through the first horizontal plate (312), and one end of the second vertical plate (321) is connected to the base (1) through the second horizontal plate (322);
the other end of the first vertical plate (311) is connected with the first end, and the other end of the second vertical plate (321) is connected with the second end.
9. The piezoelectric vibration motor according to claim 8, wherein the first elastic sheet (31) further includes a first sub-riser (313), the second elastic sheet (32) further includes a second sub-riser (323), the other end of the first riser (311) is connected to the first end through the first sub-riser (313), and the other end of the second riser (321) is connected to the second end through the second sub-riser (323).
10. The piezoelectric vibration motor according to claim 1, wherein the base (1) is a flat plate, a third insertion hole and a fourth insertion hole are formed in the base (1), the first elastic sheet (31) and the second elastic sheet (32) are each in an inverted L shape, one end of the first elastic sheet (31) is connected to the third insertion hole by laser welding after being inserted, and one end of the second elastic sheet (32) is connected to the fourth insertion hole by laser welding after being inserted.
11. The piezoelectric vibration motor according to claim 1, wherein the base (1) has a U-shape, the projections of the first elastic sheet (31) and the second elastic sheet (32) on the base (1) are each L-shaped, one end of the first elastic sheet (31) is connected to one end of the base (1), and one end of the second elastic sheet (32) is connected to the other end of the base (1).
12. The piezoelectric vibration motor according to claim 1, wherein the base (1) further comprises an upper cover (6), the projections of the first elastic piece (31) and the second elastic piece (32) on the base (1) are both U-shaped, and one end of the first elastic piece (31) and one end of the second elastic piece (32) are respectively connected to opposite sides of the upper cover (6).
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| CN202110019363.XA CN112838783B (en) | 2021-01-07 | 2021-01-07 | Piezoelectric vibration motor |
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| CN202110019363.XA CN112838783B (en) | 2021-01-07 | 2021-01-07 | Piezoelectric vibration motor |
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