CN112838784B - Piezoelectric vibration motor - Google Patents
Piezoelectric vibration motor Download PDFInfo
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- CN112838784B CN112838784B CN202110020453.0A CN202110020453A CN112838784B CN 112838784 B CN112838784 B CN 112838784B CN 202110020453 A CN202110020453 A CN 202110020453A CN 112838784 B CN112838784 B CN 112838784B
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- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 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
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 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
- H02N2/005—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
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 sheet is connected with a piezoelectric ceramic sheet, the elastic sheet comprises a first elastic sheet and a second elastic sheet which are arranged on two sides of the mass block, one end of the first elastic sheet and one end of the second elastic sheet are connected with the base, and the other end of the first elastic sheet and the other end of the second elastic sheet are connected with the same 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 piezoceramics piece on first elastic piece and the second elastic piece, piezoceramics piece circular telegram warp the back can pass through first elastic piece and second elastic piece drive the horizontal vibration of quality piece has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Description
Technical Field
The application belongs to vibrating device technical field, specifically, the application relates to a piezoelectric vibration motor.
Background
With the continuous development of communication technology, electronic devices are becoming more and more powerful. Information interaction between electronic devices and users with vibratory feedback is becoming increasingly common.
Taking a cell phone as an example, each cell phone is provided with a vibration motor. When the mobile phone is in a noisy environment, people can be timely and effectively reminded of incoming call information and short message information through the vibration function generated by the vibration motor. The mobile phone vibration motor mainly used in the current market 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 the advantages of slow starting response, weak brake sensitivity degree, narrow resonance bandwidth, incapability of realizing layering among a plurality of vibrations and incapability of meeting the complexity requirement of the vibrations.
Piezoelectric motors have gradually replaced rotor motors due to their flexible size design, short response times, and high energy efficiency. However, the traditional piezoelectric motor has poor structural stability in the vibration process, so that the vibration quantity is limited, and the application range of the traditional piezoelectric motor is limited.
Disclosure of Invention
It is an object of embodiments of the present application to provide a new solution for a piezoelectric vibration motor.
According to a first aspect of the present application, there is provided a piezoelectric vibration motor comprising:
a base;
the mass block is movably arranged on the base;
the elastic piece is connected with the piezoelectric ceramic piece, the elastic piece 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 connected with the base, and the other end of the first elastic piece and the other end of the second elastic piece are connected with the same 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 0.1-0.3mm.
Optionally, the piezoelectric ceramic sheet is adhered to at least one side surface of the elastic sheet.
Optionally, the piezoelectric ceramic sheet is a multilayer piezoelectric ceramic sheet, and the thickness of the multilayer piezoelectric ceramic sheet ranges from 0.1 mm to 0.3mm.
Optionally, the base and the mass are laser welded to the elastic sheet.
Optionally, the projection of the quality piece on the base is trapezoidal, the other end of the first elastic piece and the other end of the second elastic piece are both connected with the bottom end of the quality piece.
Optionally, the base includes a bottom plate and a sidewall extending from the bottom plate, the top surface of the mass being opposite the sidewall.
Optionally, the projection of first elastic piece and second elastic piece in the base is L shape, the one end of first elastic piece with the one end of second elastic piece all with the lateral wall is connected, the other end of first elastic piece with the other end of second elastic piece respectively with the both sides that the quality piece is close to its bottom surface one end are connected.
Optionally, the projection of first elastic piece and second elastic piece is in the U font, the one end of first elastic piece with the one end of second elastic piece all with the lateral wall is connected, the other end of first elastic piece with the other end of second elastic piece all with the bottom surface of quality piece is connected.
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 and the other end of the second vertical plate are respectively connected with two sides of one end, close to the bottom surface, of the mass block.
Optionally, the base is dull and stereotyped form, be provided with first jack and second jack on the base, first elastic piece with the second elastic piece is the shape of falling L, the one end of first elastic piece with welded connection after the first jack is pegged graft, the one end of second elastic piece with welded connection after the second jack is pegged graft, the other end of first elastic piece with the other end of second elastic piece respectively with the both sides that the quality piece is close to its bottom surface one end are connected.
One technical effect of the embodiment of the application is that:
the embodiment of the application provides a piezoelectric vibration motor, piezoelectric vibration motor's all be connected with piezoceramics piece on first elastic piece and the second elastic piece, the one end of first elastic piece with the one end of second elastic piece all with the base is connected, the other end of first elastic piece with the other end of second elastic piece all with the same end of quality piece is connected, piezoceramics piece after the electrified deformation can pass through first elastic piece and second elastic piece drive quality piece lateral vibration has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this 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 provided in an embodiment of the present application;
FIG. 2 is a side view of a first piezoelectric vibration motor provided in an embodiment of the present application;
fig. 3 is a perspective view of a first piezoelectric vibration motor according to an embodiment of the present application;
fig. 4 is a perspective view of a second piezoelectric vibration motor provided in an embodiment of the present application;
fig. 5 is a perspective view of a third piezoelectric vibration motor provided in an embodiment of the present application;
FIG. 6 is a top view of a third piezoelectric vibration motor provided in an embodiment of the present application;
fig. 7 is a perspective view of a fourth piezoelectric vibration motor provided in an embodiment of the present application.
Wherein: 1-a base; 11-a bottom plate; 12-side walls; 2-mass block; 3-an elastic sheet; 31-a first elastic sheet; 311-a first riser; 312-a first cross plate; 313-first sub-riser; 32-a first elastic sheet; 321-a second riser; 322-a second cross plate; 323-second sub-risers; 4-piezoelectric ceramic plates; 5-an electric control assembly; 51-a first connection terminal; 52-a second connection terminal; 53-Z-shaped 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, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to one 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 specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Referring to fig. 1 to 7, 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 with the base 1, or may be connected with the base 1 by an elastic material, which is not limited in this embodiment of the present application.
The piezoelectric ceramic piece 4 is connected to the elastic piece 3, the elastic piece 3 includes a first elastic piece 31 and a second elastic piece 32 that are disposed on two sides of the mass block 2, specifically, the first elastic piece 31 and the second elastic piece 32 may be disposed 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 connected to the base 1, and the other end of the first elastic piece 31 and the other end of the second elastic piece 32 are connected to the same end of the mass block 2; the electric control assembly 5 is electrically connected with the piezoelectric ceramic plate 4, the electric control assembly 5 can comprise a circuit board, a battery and other components, the piezoelectric ceramic plate 4 can deform under the condition of electrifying, and the piezoelectric ceramic plate 4 can drive the mass block 2 to vibrate transversely through the elastic plate 3 after deforming due to the fact that the first elastic plate 31 and the second elastic plate 32 are arranged on two sides of the mass block 2, so that the vibration effect of the piezoelectric vibration motor is achieved.
The embodiment of the application provides a piezoelectric vibration motor's quality piece 2 both sides are provided with first elastic piece 31 and second elastic piece 32, all be connected with piezoceramics piece 4 on first elastic piece 31 and the second elastic piece 32, the one end of first elastic piece 31 with the one end of second elastic piece 32 all with base 1 is connected, the other end of first elastic piece 31 with the other end of second elastic piece 32 all with the same end of quality piece 2 is connected for quality piece 2 forms cantilever connection's structure, piezoceramics piece 4 warp the back can pass through first elastic piece 31 and second elastic piece 32 drive quality piece 2 lateral vibration has improved piezoelectric vibration motor's vibration intensity and vibration stability.
Alternatively, the thickness of the elastic sheet 3 is in the range of 0.1-0.3mm.
Specifically, the elastic sheet 3 may be made of a metal sheet, such as a stainless steel sheet. Due to the high structural strength of the metal sheet, the thickness of the elastic sheet 3 can be controlled within a small range of 0.1-0.3mm, and in order to ensure the flexibility of the vibration of the elastic sheet 3, the thickness of the elastic sheet 3 is also required to be small. 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 piezoelectric ceramic sheet 4 is adhered to at least one side surface of the elastic sheet 3.
Specifically, when the piezoelectric ceramic piece 4 is connected to the elastic piece 3, the piezoelectric ceramic piece 4 may be bonded only on the inner side of the elastic piece 3, so as to achieve the purpose of preventing the piezoelectric ceramic piece 4 from falling accidentally; in addition, the ceramic sheet 4 may be adhered only to the outer side of the elastic sheet 3, so as to provide a larger deformation space for the ceramic sheet 4 and improve the vibration amplitude of the elastic sheet 3. The piezoelectric ceramic plates 4 may be adhered to both the inner and outer sides of the elastic plate 3 to form a push-pull piezoelectric drive, so as to increase the vibration amplitude of the elastic plate 3 and increase the vibration quantity of the piezoelectric vibration motor.
Optionally, the piezoelectric ceramic sheet 4 is a multilayer piezoelectric ceramic sheet, and the thickness of the multilayer piezoelectric ceramic sheet ranges from 0.1 mm to 0.3mm.
Specifically, the piezoelectric ceramic sheet 4 is a multilayer piezoelectric ceramic sheet; in addition, the piezoelectric ceramic plate 4 can adopt a piezoelectric ceramic plate with a double-electrode structure, the piezoelectric ceramic plate with the double-electrode structure can improve the vibration quantity of the piezoelectric vibration motor, and the size and the thickness of the piezoelectric ceramic plate 4 are reduced while the vibration performance of the piezoelectric vibration motor is met.
Optionally, the base 1 and the mass 2 are laser welded to the elastic sheet 3.
Specifically, one end of the elastic piece 3 is connected with the base 1, the other end of the elastic piece 3 is connected with the mass block 2, a specific connection mode of two ends of the elastic piece 3 can be laser welding, for example, the base 1 is laser welded with the elastic piece 3, the mass block 2 is laser welded with the elastic piece 3, and a connection mode of laser welding can increase the joint strength of the piezoelectric vibration motor and ensure the structural stability of the piezoelectric vibration motor.
Alternatively, referring to fig. 1 to 7, the projection of the mass 2 on the base 1 is trapezoidal, and the other end of the first elastic piece 31 and the other end of the second elastic piece 32 are connected to the bottom end of the mass 2.
Specifically, the bottom end may be a bottom surface of the trapezoidal mass block 2, or may be two sides of one end of the bottom surface of the trapezoidal mass block 2. The mass block 2 can be a trapezoid body with a large bottom end and a small top end, the mass block 2 can be fixed at the bottom end, and transverse vibration occurs at the top end. Because the size of the top end of the mass block 2 is smaller than that of the bottom end, the top end of the mass block 2 can avoid collision with the elastic piece 3 in the transverse vibration process, and meanwhile, the structural shape of the trapezoid can increase the weight of the bottom end of the mass block 2, so that the vibration quantity of the mass block 2 is improved. In addition, the material of the mass block 2 may be a metal block, such as a tungsten nickel alloy block, which is not limited in the embodiment of the present application.
Alternatively, referring to fig. 1 to 4, the base 1 includes a bottom plate 11 and a sidewall 12 extending from the bottom plate 11, the sidewall 12 may be perpendicular to the bottom plate 11, and the top surface of the mass 2 may be opposite to the sidewall 12.
Specifically, referring to fig. 1 to 3, the projections of the first elastic piece 31 and the second elastic piece 32 on the base 1 are L-shaped, one end of the first elastic piece 31 and one end of the second elastic piece 32 are connected with the side wall 12, specifically, as shown in fig. 1, the top end of the mass block 2 faces to the left, the bottom end of the mass block 2 faces to the right, the side wall 12 of the base 1 is located on the left side of the bottom plate 11, and the left ends of the first elastic piece 31 and the second elastic piece 32 are attached to the side wall 12; the other end of the first elastic piece 31 and the other end of the second elastic piece 32 are respectively connected with two sides of one end of the mass block 2 near the bottom surface thereof, specifically, as shown in fig. 1, the right end of the first elastic piece 31 and the right end of the second elastic piece 32 are respectively connected with two sides of one end of the bottom surface of the mass block 2 along the length direction thereof. Under the condition that the piezoelectric ceramic plate 4 drives the mass block 2 to transversely vibrate through the first elastic plate 31 and the second elastic plate 32, as the bottom surface of the mass block 2 is a connecting end and the top surface of the mass block 2 is a free end, the vibration amplitude of the top surface of the mass block 2 is larger than that of the bottom surface of the mass block 2, and the vibration quantity of the mass block 2 is improved; the top end of the mass block 2 is small in size, collision with the elastic piece 3 can be avoided in the transverse vibration process, and structural integrity of the piezoelectric vibration motor is guaranteed.
Alternatively, referring to fig. 4, the projections of the first elastic piece 31 and the second elastic piece 32 on the base 1 are all in a U shape, one end of the first elastic piece 31 and one end of the second elastic piece 32 are both connected with the side wall 12, and the other end of the first elastic piece 31 and the other end of the second elastic piece 32 are both connected with the bottom surface of the mass block 2.
Specifically, when the projections of the first elastic sheet 31 and the second elastic sheet 32 on the base 1 are both in a U shape, one end of the first elastic sheet 31 and one end of the second elastic sheet 32 may be parallel to the side wall 12, and at this time, one end of the first elastic sheet 31 and one end of the second elastic sheet 32 may be attached to the side wall 12 and form a fixed connection, for example, in fig. 4, one end of the first elastic sheet 31 is attached to the outer side of a part of the side wall 12, and one end of the second elastic sheet 32 is attached to the outer side of the rest of the side wall 12, so that the one end of the first elastic sheet 31 and one end of the second elastic sheet 32 are guaranteed to be flush; one of the first elastic piece 31 and the second elastic piece 32 may be bonded to the outside of the side wall 12, and the other may be bonded to the inside of the side wall 12; the first elastic piece 31 and the second elastic piece 32 may be sequentially attached to the inner side of the side wall 12 or sequentially attached to the outer side of the side wall 12, so that the strength of the fixed connection between the first elastic piece 31 and the second elastic piece 32 and the side wall 12 may be ensured.
Similarly, the other end of the first elastic piece 31 and the other end of the second elastic piece 32 may be parallel to the bottom surface of the mass 2, and in this case, the other end of the first elastic piece 31 and the other end of the second elastic piece 32 may be attached to the bottom surface of the mass 2 and form a fixed connection. For example, in fig. 4, the other end of the first elastic sheet 31 is attached to the bottom surface of a part of the mass block 2, and the other end of the second elastic sheet 32 is attached to the bottom surface of the rest of the mass block 2, so that the other end of the first elastic sheet 31 is flush with the other end of the second elastic sheet 32; the other end of the first elastic sheet 31 and the other end of the second elastic sheet 32 may be sequentially attached to the bottom surface of the mass block 2, so that the strength of the fixed connection between the other end of the first elastic sheet 31 and the other end of the second elastic sheet 32 and the bottom surface of the mass block 2 can be ensured.
Alternatively, referring to fig. 5 and 6, the base 1 is in a flat plate shape, the first elastic piece 31 includes a first riser 311 and a first transverse plate 312, the second elastic piece 32 includes a second riser 321 and a second transverse plate 322, one end of the first riser 311 is connected to the base 1 through the first transverse plate 312, and one end of the second riser 321 is connected to the base 1 through the second transverse plate 322; the other end of the first vertical plate 311 and the other end of the second vertical plate 321 are respectively connected with two sides of one end of the mass block 2 close to the bottom surface thereof.
Specifically, in order to improve the strength and stability of the connection between the elastic sheet 3 and the base 1 on the basis of ensuring the flat structure of the base 1, the first transverse plate 312 and the second transverse plate 322 may be arranged so that the first transverse plate 312 and the second transverse plate 322 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 between the first elastic sheet 31 and the second elastic sheet 32 and the base 1 may be increased, so that the connection strength between the first elastic sheet 31 and the second elastic sheet 32 and the base 1 may be improved. In addition, referring to fig. 7, in the case that the base 1 is in a flat plate shape, a first insertion hole and a second insertion hole may be provided on the base 1, the first elastic piece 31 and the second elastic piece 32 are all in an inverted L shape, one end of the first elastic piece 31 is connected with the first insertion hole in a welding manner after being inserted into the first insertion hole, one end of the second elastic piece 32 is connected with the second insertion hole in a welding manner after being inserted into the second insertion hole, the other end of the first elastic piece 31 and the other end of the second elastic piece 32 are respectively connected with two sides, close to one end of the bottom surface, of the mass block 2, and the connection strength and connection stability of the first elastic piece 31 and the second elastic piece 32 with the base 1 can be ensured in an inserted connection manner.
Although specific embodiments of the present application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration 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 (9)
1. A piezoelectric vibration motor, comprising:
a base (1);
the mass block (2) is movably arranged on the base (1);
the elastic piece (3), be connected with piezoceramics piece (4) on the elastic piece (3), elastic piece (3) including set up in first elastic piece (31) and second elastic piece (32) of quality piece (2) both sides, the one end of first elastic piece (31) with the one end of second elastic piece (32) all with base (1) is connected, the other end of first elastic piece (31) with the other end of second elastic piece (32) all with the same end of quality piece (2) is connected;
the electric control assembly (5), the said electric control assembly (5) is connected with said piezoelectric ceramic piece (4) electricity;
the piezoelectric ceramic piece (4) is adhered to at least one side surface of the elastic piece (3), the projection of the mass block (2) on the base (1) is trapezoid, and the other end of the first elastic piece (31) and the other end of the second elastic piece (32) are connected with the bottom end of the mass block (2), so that the mass block (2) forms a cantilever connection structure.
2. A piezoelectric vibration motor according to claim 1, characterized in that the thickness of the elastic sheet (3) is in the range of 0.1-0.3mm.
3. The 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 0.3mm.
4. The piezoelectric vibration motor according to claim 1, characterized in that the base (1) and the mass (2) are laser welded with the elastic sheet (3).
5. The piezoelectric vibration motor according to claim 1, characterized in that the base (1) comprises a bottom plate (11) and a side wall (12) extending from the bottom plate (11), the top surface of the mass (2) being opposite to the side wall (12).
6. The piezoelectric vibration motor according to claim 5, wherein the projections of the first elastic piece (31) and the second elastic piece (32) on the base (1) are L-shaped, one end of the first elastic piece (31) and one end of the second elastic piece (32) are connected with the side wall (12), and the other end of the first elastic piece (31) and the other end of the second elastic piece (32) are respectively connected with both sides of the mass (2) near the bottom end thereof.
7. The piezoelectric vibration motor according to claim 5, wherein the projections of the first elastic piece (31) and the second elastic piece (32) on the base (1) are each in a U shape, one end of the first elastic piece (31) and one end of the second elastic piece (32) are each connected with the side wall (12), and the other end of the first elastic piece (31) and the other end of the second elastic piece (32) are each connected with the bottom surface of the mass block (2).
8. The piezoelectric vibration motor according to claim 1, wherein the base (1) is flat-plate-shaped, the first elastic piece (31) includes a first riser (311) and a first diaphragm (312), the second elastic piece (32) includes a second riser (321) and a second diaphragm (322), one end of the first riser (311) is connected to the base (1) through the first diaphragm (312), and one end of the second riser (321) is connected to the base (1) through the second diaphragm (322);
the other end of the first vertical plate (311) and the other end of the second vertical plate (321) are respectively connected with two sides of one end, close to the bottom surface, of the mass block (2).
9. The piezoelectric vibration motor according to claim 1, wherein the base (1) is in a flat plate shape, a first insertion hole and a second insertion hole are formed in the base (1), the first elastic piece (31) and the second elastic piece (32) are in inverted L shapes, one end of the first elastic piece (31) is connected with the first insertion hole in an inserted and welded mode, one end of the second elastic piece (32) is connected with the second insertion hole in an inserted and welded mode, and the other end of the first elastic piece (31) and the other end of the second elastic piece (32) are connected with two sides, close to one end of the bottom surface, of the mass block (2) respectively.
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| KR101607949B1 (en) * | 2014-01-28 | 2016-03-31 | 주식회사 엠플러스 | Vibrator |
| CN105665264A (en) * | 2016-03-18 | 2016-06-15 | 昆山联滔电子有限公司 | Piezoelectric vibrator |
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| CN112838784A (en) | 2021-05-25 |
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Effective date of registration: 20210630 Address after: 266101 f / F, phase II, Qingdao International Innovation Park, 1 Keyuan Weiyi Road, Laoshan District, Qingdao City, Shandong Province Applicant after: Geer Microelectronics Co.,Ltd. Address before: 261031 No. 268 Dongfang Road, Weifang hi tech Development Zone, Shandong, China Applicant before: GOERTEK Inc. |
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