CN113595441B - Motor and electronic device - Google Patents
Motor and electronic device Download PDFInfo
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- CN113595441B CN113595441B CN202010362363.5A CN202010362363A CN113595441B CN 113595441 B CN113595441 B CN 113595441B CN 202010362363 A CN202010362363 A CN 202010362363A CN 113595441 B CN113595441 B CN 113595441B
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- voltage
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- motor
- ion
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- 239000012528 membrane Substances 0.000 claims description 26
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003456 ion exchange resin Substances 0.000 claims description 8
- 239000005518 polymer electrolyte Substances 0.000 claims description 7
- 235000014676 Phragmites communis Nutrition 0.000 abstract description 25
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- ISRUGXGCCGIOQO-UHFFFAOYSA-N Rhoden Chemical compound CNC(=O)OC1=CC=CC=C1OC(C)C ISRUGXGCCGIOQO-UHFFFAOYSA-N 0.000 description 16
- 150000001768 cations Chemical class 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The application provides a motor and electronic equipment, wherein the motor comprises an upper cover plate, a mass block, an electro-vibration piece and a lower cover plate which are sequentially arranged; the upper cover plate and the lower cover plate are matched to form a containing cavity, and the mass block and the electro-vibration piece are arranged in the containing cavity; the electro-vibration piece is positioned between the mass block and the lower cover plate; when a voltage is applied to the electro-vibration reed, the electro-vibration reed drives the mass to move. The structure of the motor eliminates the magnetic steel and the coil, does not generate magnetic field interference on the circuits and devices around the motor, and purifies the working environment of the circuits and devices around the motor; meanwhile, the motor in the embodiment has a simple structure, is convenient for assembly and automatic production, and can meet the requirement of thinning the electronic equipment more because the motor occupies small space.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to a motor and an electronic device.
Background
In current electronic devices, such as mobile phones, palm game players, or palm multimedia entertainment devices, a micro-vibration motor is generally used to realize vibration feedback.
At present, the main stream motor is realized according to the following principle: when the current-carrying conductor passes through the magnetic field, a force is applied, the force is perpendicular to the current and the magnetic field direction, and the force is directly proportional to the current, the length of the lead and the magnetic flux density. The motor comprises magnetic steel, a mass block and a coil, when the coil inputs alternating current, the coil receives an alternating driving force, so that alternating motion is generated, the mass block is driven to vibrate, and vibration sound is generated.
Since the motor includes the magnetic steel and the coil, the magnetic field generated by the magnetic steel and the coil may interfere with devices around the motor.
Disclosure of Invention
The embodiment of the application provides a motor and electronic equipment, which are used for solving the problem that magnetic fields generated by magnetic steel and coils of the motor can interfere devices around the motor at present.
To solve the above problems, embodiments of the present application are implemented as follows:
the first aspect of the embodiment of the application provides a motor, which comprises an upper cover plate, a mass block, an electro-vibration piece and a lower cover plate which are sequentially arranged;
the upper cover plate and the lower cover plate are matched to form a containing cavity, and the mass block and the electro-vibration piece are arranged in the containing cavity;
the electro-vibration piece is positioned between the mass block and the lower cover plate;
when a voltage is applied to the electro-vibration reed, the electro-vibration reed drives the mass to move.
Further, the electro-vibration piece comprises a first surface and a second surface which are arranged in opposite directions, wherein the first surface faces the lower cover plate, and the second surface faces away from the lower cover plate;
the electric vibration piece is connected with the lower cover plate through a first area of the first surface;
the electro-active vibration piece is connected with the mass block through a second area of the second surface.
Further, a gap is provided between the lower cover plate and a region of the first surface other than the first region.
Further, the second area is parallel to the lower cover plate.
Further, the electro-vibration piece is an annular structural member provided with a first through hole, and the mass block covers the first through hole.
Further, the annular structural member comprises a first semi-annular member and a second semi-annular member which are symmetrically arranged, and the first semi-annular member and the second semi-annular member are matched to form the first through hole.
Further, the electro-vibration piece is a disc-shaped structural member provided with a third through hole, and the mass block covers the third through hole.
Further, the motor further includes a circuit board disposed between the lower cover plate and the electro-vibration plate, and the circuit board is electrically connected to the electro-vibration plate, so that voltages are applied to the first surface and the second surface of the electro-vibration plate.
Further, the circuit board is provided with a second through hole, and the lower cover plate is provided with a positioning column matched with the second through hole;
the circuit board is connected with the positioning column of the lower cover plate through the second through hole.
Further, the motor further comprises a vibration plate bracket, the vibration plate bracket is arranged on the electric vibration plate in a surrounding mode, and the electric vibration plate is fixedly connected with the lower cover plate through the vibration plate bracket.
Further, the electro-vibration sheet is an ion-conductive vibration sheet;
when the voltage applied to the ion-conducting vibrating piece is a first voltage, the ion-conducting vibrating piece drives the mass block to move along a first direction;
when the voltage applied to the ion conduction vibration piece is a second voltage, the ion conduction vibration piece drives the mass block to move along a second direction;
wherein the first voltage and the second voltage are opposite in polarity, and the first direction is opposite to the second direction.
Further, when the voltage applied to the ion-conducting membrane is a first voltage, the ion-conducting membrane drives the mass to move a first distance in a first direction;
when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the mass block to move a second distance along the first direction;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first distance is different from the second distance.
Further, when the voltage applied to the ion-conducting membrane is a first voltage, the ion-conducting membrane drives the mass to move in a first direction at a first rate;
when the voltage applied to the ion-conducting membrane is a third voltage, the ion-conducting membrane drives the mass to move in the first direction at a second rate;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first speed is different from the second speed.
Further, the ion conduction vibration piece comprises a first electrode layer, an ion exchange resin layer and a second electrode layer which are sequentially stacked, wherein a polymer electrolyte is arranged in the ion exchange resin layer.
The embodiment of the application also provides electronic equipment comprising the motor.
In the embodiment of the application, the motor comprises an upper cover plate, a mass block, an electro-vibration piece and a lower cover plate which are sequentially arranged; the upper cover plate and the lower cover plate are matched to form a containing cavity, and the mass block and the electro-vibration piece are arranged in the containing cavity; the electro-vibration piece is positioned between the mass block and the lower cover plate; when a voltage is applied to the electro-vibration reed, the electro-vibration reed drives the mass to move. The structure of the motor eliminates the magnetic steel and the coil, does not generate magnetic field interference on the circuits and devices around the motor, and purifies the working environment of the circuits and devices around the motor; meanwhile, the motor in the embodiment has a simple structure, is convenient for assembly and automatic production, and can meet the requirement of thinning the electronic equipment more because the motor occupies small space.
Drawings
FIG. 1 is a schematic diagram of a motor according to an embodiment of the present application;
FIG. 2 is a second schematic diagram of a motor according to an embodiment of the present application;
fig. 3 to 5 are schematic structural views of an electro-vibration reed according to an embodiment of the present application;
FIG. 6 is a third schematic diagram of a motor according to an embodiment of the present application;
fig. 7 is a schematic diagram showing a cation distribution of an electrochromic device according to an embodiment of the present application;
FIG. 8 is a second schematic view of the cation distribution of the electro-vibration reed according to the embodiment of the present application;
FIG. 9 is a schematic view of a lower cover plate according to an embodiment of the present application;
fig. 10 is a schematic structural view of an ion-conducting vibrating piece according to an embodiment of the present application;
fig. 11 to fig. 12 are schematic views illustrating deformation of an ion-conducting vibrating reed according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, the present embodiment provides a motor, which includes an upper cover plate 1, a mass block 2, an electro-vibration plate 3, and a lower cover plate 4 sequentially disposed; the upper cover plate 1 and the lower cover plate 4 are matched to form a containing cavity, and the mass block 2 and the electro-vibration piece 3 are arranged in the containing cavity; the electro-vibration piece 3 is positioned between the mass block 2 and the lower cover plate 4; when a voltage is applied to the electro-active vibration piece 3, the electro-active vibration piece 3 drives the mass 2 to move.
In the above structure, the upper cover plate 1 and the lower cover plate 4 cooperate to form a containing cavity, the mass block 2 and the electro-vibration piece 3 are disposed in the containing cavity, one end of the electro-vibration piece 3 is connected with the lower cover plate 4, the other end of the electro-vibration piece 3 is connected with the mass block 2, and the mass block 2 may be a metal block, for example, a tungsten alloy block, or a nonmetal block composed of nonmetal materials with higher density. When a voltage is applied to the electro-vibration reed 3, the electro-vibration reed 3 drives the mass 2 to move, and the electro-vibration reed 3 drives the mass 2 to reciprocate by applying a voltage with alternating polarity to the electro-vibration reed 3, thereby generating a vibration sensation.
In the present embodiment, the motor includes an upper cover plate 1, a mass block 2, an electro-vibration plate 3, and a lower cover plate 4, which are sequentially disposed; the upper cover plate 1 and the lower cover plate 4 are matched to form a containing cavity, and the mass block 2 and the electro-vibration piece 3 are arranged in the containing cavity; the electro-vibration piece 3 is positioned between the mass block 2 and the lower cover plate 4; when a voltage is applied to the electro-active vibration piece 3, the electro-active vibration piece 3 drives the mass 2 to move. The structure of the motor eliminates the magnetic steel and the coil, does not generate magnetic field interference on the circuits and devices around the motor, and purifies the working environment of the circuits and devices around the motor; meanwhile, the motor in the embodiment has a simple structure, is convenient for assembly and automatic production, and can meet the requirement of thinning the electronic equipment more because the motor occupies small space.
As shown in fig. 2, in one embodiment of the present application, the electro-vibration plate 3 includes a first surface and a second surface disposed opposite to each other, the first surface facing the lower cover plate 4, and the second surface facing away from the lower cover plate 4;
the electro-vibration reed 3 is connected with the lower cover plate 4 through a first region 311 of the first surface;
the electro-active vibration piece 3 is connected to the mass 2 through a second region 321 of the second surface.
Specifically, the first area 311 may be fixedly connected to the lower cover 4, and similarly, the second area 321 may be fixedly connected to the mass block 2, and the fixed connection may be welding. The first region 311 and the second region 321 may be annular regions, a first vertical projection of the first region 311 on the lower cover 4 and a second vertical projection of the second region 321 on the lower cover 4 are concentric annular rings, and a radius of the first vertical projection is larger than a radius of the second vertical projection. Of course, in other embodiments of the present application, the first area 311 and the second area 321 may be square annular areas, or the first area 311 is a square annular area, the second area 321 is a square area, and the shape of the first area 311 and the second area 321 is not particularly limited in the present application.
The first surface has a gap between the lower cover plate 4 and the region other than the first region 311, that is, the first surface extends in a direction away from the lower cover plate 4 with the first region 311 as a starting position, so that the region other than the first region 311 of the first surface has a gap between the lower cover plate 4 and the region other than the first region 311.
Further, the second area 321 is disposed parallel to the lower cover 4. The first region 311 is taken as a starting position of the electro-vibration sheet 3, extends towards a direction away from the lower cover plate 4, and extends to a preset position, wherein the preset position is the maximum distance between the electro-vibration sheet 3 and the lower cover plate 4; the electro-active vibration plate 3 is then extended in a direction parallel to the lower cover plate 4 to form a second region 321. As shown in fig. 2, the first surface and the second surface are two symmetrically disposed faces of the electro-active vibration plate 3, respectively. Optionally, the first surface further comprises an annular bevel with a gap between the annular bevel and the lower cover plate 4.
That is, the electro-active vibration piece 3 may include a third annular structure, and first and second annular structures concentrically disposed, the third annular structure having a longitudinal section of an inclined plane, the third annular structure being connected to the first and second annular structures, respectively, to constitute the structure of the electro-active vibration piece 3 shown in fig. 2.
As shown in fig. 3, the electro-active vibration reed 3 is a ring-shaped structure member having a first through hole 33. In this embodiment, the mass 2 may have a circular structure with a radius larger than that of the first through hole 33, so that the mass 2 at least partially covers the electro-active vibration plate 3. The mass 2 may be of solid construction, in which case the mass 2 is covered on the first through hole 33; the mass 2 may also be provided with a fourth through hole, in which case the fourth through hole is arranged opposite the first through hole 33, for example with the centre of the fourth through hole lying on the axis of the first through hole 33.
The annular structural member can comprise a third annular structure, a first annular structure and a second annular structure which are concentrically arranged, the longitudinal section of the third annular structure is an inclined plane, and the third annular structure is respectively connected with the first annular structure and the second annular structure.
The mass 2 is connected to a first ring structure, on which a plurality of first connection points B are provided, which may be symmetrically arranged, and the mass 2 is connected to the electro-active vibrating reed 3 through the plurality of first connection points B, 4 of which are shown in fig. 3. Similarly, as shown in fig. 3, a plurality of second connection points a are also provided on the second annular structure, and the plurality of second connection points a may be symmetrically provided, and the electro-vibration element 3 is connected to the lower cover plate 4 through the plurality of second connection points a, and 4 second connection points a are shown in fig. 3.
As shown in fig. 4, the annular structural member includes a first half-ring member and a second half-ring member which are symmetrically arranged, and the first half-ring member and the second half-ring member cooperate to form the first through hole 33. The first semi-annular piece comprises a first semi-annular structure, the second semi-annular piece comprises a second semi-annular structure, and the mass blocks 2 are connected with the first semi-annular structure and the second semi-annular structure. The first and second half-ring structures may each comprise a plurality of first connection points B, for example, the first and second half-ring structures may each comprise 3 uniformly distributed first connection points B.
As shown in fig. 5, the electro-vibration reed 3 is a disc-shaped structural member provided with a third through hole 34, and the mass 2 may cover the third through hole 34, or a fourth through hole of the mass 2 is opposite to the third through hole 34, for example, a center of the fourth through hole is located on an axis of the third through hole 34. The dish-shaped structural member comprises a base and a dish-shaped structure, the base and the dish-shaped structure can be integrally formed, and the base is connected with the lower cover plate 4. The disk structure takes the base as a starting position and extends in a direction away from the lower cover plate 4, the top end of the disk structure is a disk area, and the disk area is connected with the electro-vibration piece 3. Specifically, the disc-shaped region includes an annular region, and a plurality of arc-shaped extension regions connected to the outer edges of the annular region, and a third connection point C is provided at the intersection region of the annular region and the extension regions, and the disc-shaped region is connected to the electro-active vibration plate 3 through the third connection point C.
As shown in fig. 6, the motor further includes a circuit board 5, the circuit board 5 is disposed between the lower cover plate 4 and the electro-vibration piece 3, the circuit board 5 is electrically connected to the electro-vibration piece 3, so that voltages are applied to the first and second surfaces of the electro-vibration piece 3, so that the electro-vibration piece 3 drives the mass 2 to move. The vibration feeling can be generated by applying a voltage with alternating polarity to the electro-vibration reed 3 so that the electro-vibration reed 3 drives the mass 2 to reciprocate.
As shown in fig. 6, the circuit board 5 is provided with a second through hole 51, and the lower cover plate 4 is provided with a positioning column 41 adapted to the second through hole 51; the circuit board 5 is connected with the positioning column 41 of the lower cover plate 4 through the second through hole 51.
The circuit board 5 may be a flexible circuit board (Flexible Printed Circuit is abbreviated as FPC), and the shape of the circuit board 5 may be adapted to the shape of the lower cover plate 4. For example, the lower cover plate 4 includes a first annular region, and a first extension of the first annular region, in the center of which the positioning column 41 is provided; the circuit board 5 includes a second annular region, and a second extension portion of the second annular region, the center of the second annular region is a second through hole 51, and the first extension portion and the second extension portion are the same in shape, for example, are both rectangular. When the circuit board 5 is disposed on the lower cover plate, the second annular region of the circuit board 5 is disposed on the first annular region, and the second extension portion of the circuit board 5 is disposed on the first extension portion. The circuit board 5 may be fixed on the lower cover plate 4 by double sided tape.
The upper cover plate 1 has an opening adapted to the first extending portion at one end close to the lower cover plate 4, and after the upper cover plate 1 is assembled with the lower cover plate 4, the opening is located above the first extending portion of the lower cover plate 4, and the second extending portion of the circuit board 5 disposed on the first extending portion extends out of the accommodating cavity formed by the upper cover plate 1 and the lower cover plate 4 from the opening.
As shown in fig. 9, a plurality of fourth connection points D are provided on the lower cover 4, the upper cover 1 is connected with the lower cover 4 through the plurality of fourth connection points D, the fourth connection points D may be welding points, and the upper cover 1 and the lower cover 4 are fixed by spot welding.
The motor further comprises a vibration piece support, the vibration piece support is arranged on the electric vibration piece 3 in a surrounding mode, and the electric vibration piece 3 is fixedly connected with the lower cover plate 4 through the vibration piece support. The vibration plate bracket can be made of low-cost insulating materials so as to save the consumption of the electro-vibration plate 3 and reduce the cost of the motor.
In one embodiment of the present application, the electro-active vibrating piece 3 is an ion-conductive vibrating piece;
when the voltage applied to the ion-conducting membrane is a first voltage, the ion-conducting membrane drives the mass 2 to move in a first direction;
when the voltage applied to the ion-conducting membrane is a second voltage, the ion-conducting membrane drives the mass 2 to move in a second direction;
wherein the first voltage and the second voltage are opposite in polarity, and the first direction is opposite to the second direction. That is, the first direction and the second direction are opposite to each other, and by alternately applying voltages of opposite polarities to the ion-conducting vibrating reed, the ion-conducting vibrating reed can drive the mass 2 to alternately move in the first direction and the second direction, thereby generating a vibration sensation.
As shown in fig. 10, the ion-conductive vibrating piece includes a first electrode layer 101, an ion-exchange resin layer 102, and a second electrode layer 103 stacked in this order, and the ion-exchange resin layer 102 has a polymer electrolyte therein. The ion conductive vibration piece can be made of ion exchange polymer metal material (ion-exchange polymer metal composite, IPMC for short). The IPMC material is a novel electrically actuated functional material, and uses an ion exchange resin layer (such as fluorocarbon polymer) as a substrate, and precious metals (such as platinum, silver, etc.) are plated on the surface of the substrate to form electrode layers, namely a first electrode layer 101 and a second electrode layer 103. The ion exchange resin layer 102 includes a polymer electrolyte containing cations and anions, and the positions and amounts of the cations and anions in fig. 10 are merely illustrative and not representative of actual conditions. As shown in fig. 11 and 12, when a voltage is applied to the IPMC in the thickness direction, hydrated cations in the polymer electrolyte move to the cathode side, causing a difference in swelling of the anode and cathode sides of the IPMC, thereby generating deformation, bending toward the anode side, and thus, the degree of IPMC bending can be controlled by controlling the energization voltage or current of the IPMC, so that the IPMC is displaced in the lateral direction.
The IPMC material is a novel driving material and has the advantages of light driving weight, large displacement deformation, low driving voltage and the like. The advantages of using IPMC are obvious, for example, IPMC is a non-magnetic material, and magnetic interference is not generated; the displacement and velocity produced by IPMC deformation decreases in proportion to the thickness of the IPMC, and the force produced by IPMC deformation increases in proportion to the cube of the thickness of the IPMC. Therefore, the thickness of the IPMC may be set according to the actual situation to achieve the required displacement, speed and force generated by IPMC deformation.
By applying a voltage to the ion-conducting vibrating piece of the electro-vibrating piece 3, cations in the polymer electrolyte move to the cathode side, causing a difference in swelling of the front and back surfaces of the ion-conducting vibrating piece of the electro-vibrating piece 3, which can deform the ion-conducting vibrating piece of the electro-vibrating piece 3, and alternately changing the direction of the voltage applied to the ion-conducting vibrating piece of the electro-vibrating piece 3, the deformation direction of the ion-conducting vibrating piece of the electro-vibrating piece 3 can be alternately changed, so that the mass block 2 is driven to alternately move, and a vibration sense is generated. The vibration amplitude may be 0.1 mm to 10 mm, and the vibration amplitude may be controlled by setting the thickness of the ion-conducting vibrating piece of the electro-vibrating piece 3 and adjusting the magnitude of the current passing through the ion-conducting vibrating piece of the electro-vibrating piece 3.
Fig. 7 is a schematic diagram showing the distribution of cations in the electro-vibration plate 3 when a positive current passes through the electro-vibration plate 3, wherein the cations move to the cathode side of the electro-vibration plate 3 (i.e. the second surface 32 of the electro-vibration plate 3 in fig. 7), the electro-vibration plate 3 moves upward, and drives the mass 2 to move upward, and the direction indicated by the arrow in fig. 7 is the moving direction of the electro-vibration plate 3.
Fig. 8 is a schematic diagram showing the distribution of cations in the electro-vibration plate 3 when a negative current flows through the electro-vibration plate 3, wherein the cations move to the cathode side of the electro-vibration plate 3 (i.e. the first surface 31 of the electro-vibration plate 3 in fig. 8), the electro-vibration plate 3 moves downward, and the mass 2 is driven to move downward, and the direction indicated by the arrow in fig. 8 is the moving direction of the electro-vibration plate 3. By applying a voltage to the ion-conducting vibrating piece, cations in the polymer electrolyte of the ion-conducting vibrating piece move to the cathode side, causing a difference in front and back swelling, so that the ion-conducting vibrating piece is deformed. When alternating current is applied to the ion conduction vibration piece, the ion conduction vibration piece drives the mass block 2 to vibrate reciprocally, so that vibration sense is generated.
In the scene of needing to monitor the heat dissipation of electronic equipment, the temperature is monitored through the temperature sensor in the electronic equipment, after the temperature point of needing to dissipate heat is reached, the electronic equipment outputs the low-power consumption electric signal of about 0.05W to the electric vibration piece 3, and the electrified electric vibration piece 3 can vibrate reciprocally, so that the peripheral vibration of the mass block 2 is driven to produce sound, thereby reminding a user that the temperature of the electronic equipment is higher, and needing to dissipate heat, so as to avoid equipment damage.
In the scene of needing automatic heat dissipation, the temperature is monitored through a temperature sensor in the electronic equipment, and after the temperature point of needing heat dissipation is reached, the electronic equipment outputs a low-power-consumption electric signal with the power of about 0.05W to the electro-vibration piece 3, and the electrified electro-vibration piece 3 can vibrate in a reciprocating manner, so that the mass block 2 is driven to vibrate, and air is driven to flow for heat dissipation.
Further, when the voltage applied to the ion-conducting membrane is a first voltage, the ion-conducting membrane drives the mass 2 to move a first distance in a first direction;
when the voltage applied to the ion-conducting membrane is a third voltage, the ion-conducting membrane drives the mass 2 to move a second distance in the first direction;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first distance is different from the second distance.
Wherein the first voltage and the third voltage are the same polarity, and the third voltage is greater than the first voltage, the first distance and the second distance are different, e.g., the second distance may be greater than the first distance. When the mass 2 is required to move a large distance, the mass 2 can be driven to move a large distance by applying a large voltage to the ion-conducting vibrating piece; when it is desired to move the mass 2 a small distance, the mass 2 can be driven to move a small distance by applying a large voltage to the ion-conducting membrane. The magnitude of the voltage applied to the ion-conducting vibrating reed and the moving distance of the mass 2 have a correspondence relationship, and in the case of determining the distance the mass 2 needs to move, the magnitude of the voltage applied to the ion-conducting vibrating reed can be determined from the correspondence relationship.
Further, when the voltage applied to the ion-conducting membrane is a first voltage, the ion-conducting membrane drives the mass 2 to move in a first direction at a first rate;
when the voltage applied to the ion-conducting membrane is a third voltage, the ion-conducting membrane drives the mass 2 to move in the first direction at a second rate;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first speed is different from the second speed. For example, the second rate may be less than the first rate. When the movement rate of the mass block 2 is required to be larger, the mass block 2 can be driven to move at a larger rate by applying larger voltage to the ion conduction vibration piece; when a smaller rate of movement of the mass 2 is desired, the mass 2 can be driven to move at a smaller rate by applying a smaller voltage to the ion-conducting membrane. The magnitude of the voltage applied to the ion-conducting vibrating reed and the moving rate of the mass 2 have a correspondence relationship, and in the case of determining the rate at which the mass 2 needs to move, the magnitude of the voltage applied to the ion-conducting vibrating reed can be determined from the correspondence relationship.
In an embodiment of the present application, an electronic device is further provided, where the electronic device includes the motor in the above embodiment. Because the motor has no magnetic steel and coil in the structure, magnetic field interference can not be generated on the circuits and devices around the motor, and the working environment of the circuits and devices around the motor is purified; meanwhile, the motor is simple in structure and convenient for automatic production, and meanwhile, the motor occupies small space, so that the requirement of thinning of electronic equipment can be met.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (11)
1. The motor is characterized by comprising an upper cover plate, a mass block, an electro-vibration piece and a lower cover plate which are sequentially arranged;
the upper cover plate and the lower cover plate are matched to form a containing cavity, and the mass block and the electro-vibration piece are arranged in the containing cavity;
the electro-vibration piece is positioned between the mass block and the lower cover plate; the electro-vibration piece is an annular structural member provided with a first through hole, and comprises a third annular structure, a first annular structure and a second annular structure which are concentrically arranged, the longitudinal section of the third annular structure is an inclined plane, and the third annular structure is respectively connected with the first annular structure and the second annular structure;
when a voltage is applied to the electro-vibration piece, the electro-vibration piece drives the mass block to move;
the first annular structure is provided with a plurality of first connecting points, and the mass block is connected with the electro-vibration piece through the plurality of first connecting points; the second annular structure is provided with a plurality of second connection points, and the electro-vibration piece is connected with the lower cover plate through the plurality of second connection points.
2. The motor of claim 1, wherein the electro-vibration plate includes a first surface and a second surface disposed opposite to each other, the first surface facing toward the lower cover plate, the second surface facing away from the lower cover plate.
3. The motor of claim 1, wherein the mass at least partially covers the electro-active vibrating piece.
4. A motor as claimed in claim 3, wherein the annular structural member comprises first and second symmetrically disposed half-rings, the first and second half-rings cooperating to form the first through-hole.
5. The motor of claim 1, further comprising a circuit board disposed between the lower cover plate and the electro-active vibration plate, the circuit board being electrically connected to the electro-active vibration plate such that the first and second surfaces of the electro-active vibration plate are applied with voltages.
6. The motor of claim 5, wherein the circuit board is provided with a second through hole, and the lower cover plate is provided with a positioning column matched with the second through hole;
the circuit board is connected with the positioning column of the lower cover plate through the second through hole.
7. The motor of claim 1, wherein the electro-active vibrating piece is an ion-conductive vibrating piece;
when the voltage applied to the ion-conducting vibrating piece is a first voltage, the ion-conducting vibrating piece drives the mass block to move along a first direction;
when the voltage applied to the ion conduction vibration piece is a second voltage, the ion conduction vibration piece drives the mass block to move along a second direction;
wherein the first voltage and the second voltage are opposite in polarity, and the first direction is opposite to the second direction.
8. The motor of claim 7, wherein when the voltage applied to the ion conducting membrane is a first voltage, the ion conducting membrane drives the mass to move a first distance in a first direction;
when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the mass block to move a second distance along the first direction;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first distance is different from the second distance.
9. The motor of claim 7, wherein when the voltage applied to the ion conducting membrane is a first voltage, the ion conducting membrane drives the mass to move in a first direction at a first rate;
when the voltage applied to the ion-conducting membrane is a third voltage, the ion-conducting membrane drives the mass to move in the first direction at a second rate;
the first voltage and the third voltage have the same polarity, the third voltage is larger than the first voltage, and the first speed is different from the second speed.
10. The motor of claim 7, wherein the ion conductive vibration plate comprises a first electrode layer, an ion exchange resin layer, and a second electrode layer stacked in this order, the ion exchange resin layer having a polymer electrolyte therein.
11. An electronic device comprising the motor of any one of claims 1-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362363.5A CN113595441B (en) | 2020-04-30 | 2020-04-30 | Motor and electronic device |
| PCT/CN2021/089546 WO2021218838A1 (en) | 2020-04-30 | 2021-04-25 | Motor and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362363.5A CN113595441B (en) | 2020-04-30 | 2020-04-30 | Motor and electronic device |
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| CN113595441A CN113595441A (en) | 2021-11-02 |
| CN113595441B true CN113595441B (en) | 2023-12-08 |
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| CN202010362363.5A Active CN113595441B (en) | 2020-04-30 | 2020-04-30 | Motor and electronic device |
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| WO2021218838A1 (en) | 2021-11-04 |
| CN113595441A (en) | 2021-11-02 |
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