CN113965103A - Motor and electronic device - Google Patents
Motor and electronic device Download PDFInfo
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- CN113965103A CN113965103A CN202010698225.4A CN202010698225A CN113965103A CN 113965103 A CN113965103 A CN 113965103A CN 202010698225 A CN202010698225 A CN 202010698225A CN 113965103 A CN113965103 A CN 113965103A
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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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The application discloses motor and electronic equipment belongs to device structure technical field. The motor comprises a shell, a first electric vibrating reed, a second electric vibrating reed, a mass block and a counterweight body, wherein the shell is provided with a containing cavity, the first electric vibrating reed, the second electric vibrating reed, the mass block and the counterweight body are all arranged in the containing cavity, and the mass block and the counterweight body are positioned between the first electric vibrating reed and the second electric vibrating reed; when voltage is applied to the first electro-vibration piece, the first electro-vibration piece drives the mass block to move; when a voltage is applied to the second electro-vibration member, the second electro-vibration member drives the weight body to move. The scheme solves the problems that structural parts for realizing the sound production function and the vibration function in the existing electronic equipment occupy more space, are high in realization cost and interfere with surrounding devices.
Description
Technical Field
The application belongs to the technical field of device structures, and particularly relates to a motor and electronic equipment.
Background
In mobile communication terminals such as mobile phones, the incoming call prompting mode includes two modes, namely voice prompting and vibration prompting, and the two functions are respectively borne by a loudspeaker and a vibration motor in the prior art. However, with the development of technology, the mobile phone is becoming smaller and thinner, and therefore, the size of the components and parts constituting the mobile phone is becoming more and more miniaturized, and the components and parts are also required to be integrated so that the number thereof is reduced. Specifically, as shown in fig. 1, the vibration motor includes: the device comprises an upper shell a, a mass block b, magnetic steel c, a pole piece d, an elastic piece e, a coil yoke f, a coil g, a flexible circuit board (FPC) h and a lower shell i; the loudspeaker is shown in fig. 2 and comprises: yoke j, magnetic steel k, voice coil l, steel plate m, spring sheet n, middle frame o, vibrating diaphragm p and ball top q.
In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: the mobile phone adopts two components of a loudspeaker and a vibration motor, which not only occupy the internal space of the mobile phone, but also increase the manufacturing cost of the mobile phone; in addition, the vibration motor and the loudspeaker which are used at present need to use magnetic steel and a coil to generate electromagnetism, so that the existing magnetic field and electric field of the vibration motor and the loudspeaker generate interference and influence on circuits and devices around electronic equipment, and the overall layout of the mobile phone is influenced.
Therefore, the structural parts for realizing the sound production function and the vibration function in the existing electronic equipment have the problems of large occupied space, high realization cost, interference with surrounding devices and the like.
Disclosure of Invention
The embodiment of the application aims to provide a motor and electronic equipment, and the problems that a structural part for realizing a sound production function and a vibration function in the existing electronic equipment occupies a large space, is high in cost and interferes with surrounding devices can be solved.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a motor, including a housing, a first electric vibrating reed, a second electric vibrating reed, a mass block, and a weight block, where the housing is provided with a containing cavity, the first electric vibrating reed, the second electric vibrating reed, the mass block, and the weight block are all disposed in the containing cavity, and the mass block and the weight block are located between the first electric vibrating reed and the second electric vibrating reed;
the shell comprises a top shell and a bottom shell which are distributed in an opposite mode, a first surface of the first electric vibrating reed is connected with the top shell, a second surface of the first electric vibrating reed is electrically connected with the mass block, a first surface of the second electric vibrating reed is connected with the bottom shell, and a second surface of the second electric vibrating reed is connected with the counterweight body;
when voltage is applied to the first electro-vibration piece, the first electro-vibration piece drives the mass block to move;
when voltage is applied to the second electro-vibration piece, the second electro-vibration piece drives the counterweight body to move;
wherein the mass is not in contact with the second electric vibrating reed and the counterweight.
Optionally, the resonator further includes a limiting member, and the limiting member is disposed between the second electric vibrating reed and the mass block;
under the condition that the mass block is in limit fit with the limiting piece, the mass block is not in contact with the second electric vibrating reed and the counterweight body.
Optionally, the limiting member is fixed to the inner wall of the accommodating cavity, or the limiting member is disposed on the second surface of the second electric vibrating reed.
Optionally, the mass block is an annular structural member, and in the moving direction of the mass block, the projection of the mass block is not coincident with the projection of the counterweight body.
Optionally, the limiting part is an annular structural part;
in the moving direction of the mass block, a first annular projection area of the limiting member, a second annular projection area of the mass block, and a third projection area of the counterweight body are not overlapped with each other, the second annular projection area is located outside the third projection area, and the first annular projection area is located outside the second annular projection area.
Optionally, the first electroluminescent vibrating reed comprises a first ring-shaped support and a first driving portion, the first ring-shaped support has a first through hole, and the first driving portion is located in the first through hole and connected to a hole wall of the first through hole;
the first driving part is connected with the top shell towards a first surface of the top shell, and the first annular support is connected with the mass block towards a second surface of the mass block;
when voltage is applied to the first electric vibration piece, the first driving part drives the first annular support to drive the mass block to move.
Optionally, the first annular support includes a first semi-annular member and a second semi-annular member that are symmetrically disposed, and the first semi-annular member and the second semi-annular member cooperate to form the first through hole.
Optionally, the second electroluminescent vibrating reed includes a second bracket, a second driving portion and a third bracket, the third bracket is connected to the second bracket through the second driving portion, the second bracket is connected to the bottom case toward the first surface of the bottom case, and the third bracket is connected to the counterweight toward the second surface of the top case;
when voltage is applied to the second electric vibration piece, the second driving part drives the third support to drive the counterweight body to move.
Optionally, the first electric vibrating reed is an ion conduction vibrating reed;
when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass block to move along a first direction;
when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate 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.
Optionally, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass to move a first distance along a first direction;
when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate 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 greater than the first voltage, and the first distance is different from the second distance.
Optionally, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass to move along the first direction at a first speed;
when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the mass block to move along the first direction at a second speed;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
Optionally, the second electric vibration sheet is an ion conduction vibration sheet;
when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the counterweight body 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 counterweight body 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.
Optionally, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the counterweight body to move a first distance along a first direction;
when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the counterweight body to move a second distance along the first direction;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.
Optionally, when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the weight body to move along a first direction at a first speed;
when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the counterweight body to move along a first direction at a second speed;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
Optionally, the ion conduction vibration plate includes a first electrode layer, an ion exchange resin layer, and a second electrode layer stacked in sequence, and the ion exchange resin layer has a polymer electrolyte therein.
In a second aspect, an embodiment of the present application provides an electronic device, including: the motor described above.
In the embodiment of the application, by setting: the vibrating reed comprises a shell, a first electric vibrating reed, a second electric vibrating reed, a mass block and a counterweight body, wherein the shell is provided with a containing cavity, the first electric vibrating reed, the second electric vibrating reed, the mass block and the counterweight body are arranged in the containing cavity, and the mass block and the counterweight body are positioned between the first electric vibrating reed and the second electric vibrating reed; the shell comprises a top shell and a bottom shell which are distributed in an opposite mode, a first surface of the first electric vibrating reed is connected with the top shell, a second surface of the first electric vibrating reed is electrically connected with the mass block, a first surface of the second electric vibrating reed is connected with the bottom shell, and a second surface of the second electric vibrating reed is connected with the counterweight body; when voltage is applied to the first electro-vibration piece, the first electro-vibration piece drives the mass block to move; when voltage is applied to the second electro-vibration piece, the second electro-vibration piece drives the counterweight body to move; wherein the mass is not in contact with the second electric vibrating reed and the counterweight; the two functions of sound production and vibration can be realized by adopting one component, so that the occupied space is reduced, the realization cost is reduced, magnetic steel and electromagnetism are not needed, and the interference on surrounding devices is avoided; the problems that structural parts for realizing the sound production function and the vibration function in the existing electronic equipment occupy more space, are high in realization cost and interfere with surrounding devices are well solved.
Drawings
Fig. 1 is a schematic view of a vibration motor in the prior art;
fig. 2 is a schematic view of a prior art loudspeaker construction;
FIG. 3 is a first schematic view of a motor according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a motor structure according to an embodiment of the present application;
FIG. 5 is a schematic view of a first toroidal support according to an embodiment of the present application;
FIG. 6 is a schematic view of a first electroluminescent vibrating plate according to an embodiment of the present application;
fig. 7 is a schematic view of the operation principle of the ion conduction vibration plate according to the embodiment of the present application;
FIG. 8 is a first schematic diagram illustrating a vibration function of the motor according to an embodiment of the present disclosure;
FIG. 9 is a schematic diagram of a motor implementing a vibration function according to an embodiment of the present application;
FIG. 10 is a first schematic diagram illustrating a sound generating function of the motor according to the embodiment of the present application;
fig. 11 is a schematic diagram of a sound generating function of the motor according to the embodiment of the present application;
fig. 12 is a schematic view of the structure of an ion conduction vibration plate according to an embodiment of the present application;
FIG. 13 is a first schematic view of the deformation of the ion-conducting vibrating plate according to the embodiment of the present application;
fig. 14 is a second schematic view of the deformation of the ion conduction vibration plate according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The motor structure provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.
As shown in fig. 3 and 4 and fig. 8 to 11, a motor provided in an embodiment of the present application includes a case 1, a first electric vibrating reed 2, a second electric vibrating reed 3, a mass 4, and a weight 5, where the case 1 is opened with a receiving cavity 6, the first electric vibrating reed 2, the second electric vibrating reed 3, the mass 4, and the weight 5 are all disposed in the receiving cavity 6, and the mass 4 and the weight 5 are located between the first electric vibrating reed 2 and the second electric vibrating reed 3;
the case 1 includes a top case 7 and a bottom case 8 which are disposed opposite to each other, a first surface of the first electric vibrating reed 2 is connected to the top case 7, a second surface of the first electric vibrating reed 2 is electrically connected to the mass block 4, a first surface of the second electric vibrating reed 3 is connected to the bottom case 8, and a second surface of the second electric vibrating reed 3 is connected to the weight 5;
when a voltage is applied to the first electro-vibrating member 2, the first electro-vibrating member 2 drives the mass 4 to move;
when a voltage is applied to the second electro-vibration member 3, the second electro-vibration member 3 drives the weight body 5 to move;
wherein the mass 4 is not in contact with the second electric vibrating reed 3 and the counterweight 5.
The motor that this application embodiment provided is through setting up: the vibrating reed comprises a shell, a first electric vibrating reed, a second electric vibrating reed, a mass block and a counterweight body, wherein the shell is provided with a containing cavity, the first electric vibrating reed, the second electric vibrating reed, the mass block and the counterweight body are arranged in the containing cavity, and the mass block and the counterweight body are positioned between the first electric vibrating reed and the second electric vibrating reed; the shell comprises a top shell and a bottom shell which are distributed in an opposite mode, a first surface of the first electric vibrating reed is connected with the top shell, a second surface of the first electric vibrating reed is electrically connected with the mass block, a first surface of the second electric vibrating reed is connected with the bottom shell, and a second surface of the second electric vibrating reed is connected with the counterweight body; when voltage is applied to the first electro-vibration piece, the first electro-vibration piece drives the mass block to move; when voltage is applied to the second electro-vibration piece, the second electro-vibration piece drives the counterweight body to move; wherein the mass is not in contact with the second electric vibrating reed and the counterweight; the two functions of sound production and vibration can be realized by adopting one component, so that the occupied space is reduced, the realization cost is reduced, magnetic steel and electromagnetism are not needed, and the interference on surrounding devices is avoided; the problems that structural parts for realizing the sound production function and the vibration function in the existing electronic equipment occupy more space, are high in realization cost and interfere with surrounding devices are well solved.
The main function of the counterweight body in the embodiment of the application is to adjust the resonance frequency of sound production.
In an embodiment of the present application, the motor may further include a vibration plate support, the vibration plate support is annularly disposed on the second electric vibration plate, and the second electric vibration plate is fixedly connected to the bottom case through the vibration plate support. The vibrating plate bracket can be made of insulating materials with low price, so that the using amount of the second electric vibrating plate is saved, and the cost of the motor is reduced.
Further, as shown in fig. 3 and 4, the motor further includes a limiting member 9, and the limiting member 9 is disposed between the second electric vibrating reed 3 and the mass block 4; under the condition that the mass block 4 is in limit fit with the limiting piece 9, the mass block 4 is not in contact with the second electric vibrating reed 3 and the counterweight 5. More specifically, the limiting member 9 is disposed around the periphery of the weight body 5.
This prevents the mass from colliding with the second electrovibrating reed and losing the second electrovibrating reed.
Specifically, as shown in fig. 3, the limiting member 9 is fixed to an inner wall of the accommodating cavity 6, or the limiting member 9 is disposed on the second surface of the second electric vibrating reed 3.
In the embodiment of the present application, as shown in fig. 3 and 4, the mass block 4 is an annular structural member, and a projection of the mass block 4 does not coincide with a projection of the counterweight 5 in the moving direction of the mass block 4.
This facilitates the implementation of the vibration function, as well as the deployment and installation of the structure.
Specifically, the mass block may be made of tungsten alloy, or may be made of other metal or non-metal materials with relatively high density, such as iron, copper, quartz, and the like.
Therefore, better vibration sense generation can be ensured, and the vibration function is realized.
In the embodiment of the present application, as shown in fig. 3 and 4, the weight body 5 has a ring-shaped structure.
Therefore, the sound production function is convenient to realize, and the use and the installation are convenient.
In the embodiment of the present application, as shown in fig. 3 and 4, the limiting member 9 is an annular structural member;
in the moving direction of the mass block 4, a first annular projection area of the limiting member 9, a second annular projection area of the mass block 4, and a third projection area of the counterweight 5 are not overlapped with each other, the second annular projection area is located outside the third projection area, and the first annular projection area is located outside the second annular projection area.
Thus, the structure can be ensured not to interfere with each other and influence each other in the subsequent use process.
In an embodiment of the present application, the first electroluminescent vibrating plate is connected to the low-frequency current interface. This ensures that the vibration function is achieved.
In an embodiment of the present application, the second electroluminescent vibrating plate is connected to the high-frequency current interface. This ensures that the sound generating function is achieved.
Specifically, as shown in fig. 3 to 5, the first electroluminescent vibrating reed 2 includes a first ring-shaped support 10 and a first driving portion 11, the first ring-shaped support 10 has a first through hole 12, and the first driving portion 11 is located in the first through hole 12 and connected to a wall of the first through hole 12; the first driving part 11 is connected to the top shell 7 toward a first surface of the top shell 7, and the first annular support 10 is connected to the mass block 4 toward a second surface of the mass block 4; when a voltage is applied to the first electro-vibration element 2, the first driving portion 11 drives the first annular support 10 to drive the mass block 4 to move.
The first annular support 10 may be a square ring (as shown in fig. 3 and 4) or a circular ring (as shown in fig. 5), which is not limited herein; as shown in fig. 4, the first driving portion 11 may be formed by several interlaced stripe-shaped sub-vibrating pieces (e.g., a cross-shaped or swastika-shaped structure), so that the vibrating function can be better realized.
As shown in fig. 5, the first ring carrier 10 includes a first semi-ring member and a second semi-ring member symmetrically disposed, and the first semi-ring member and the second semi-ring member cooperate to form the first through hole 12. The first semi-ring member comprises a first semi-ring structure, the second semi-ring member comprises a second semi-ring structure, and the mass block 4 is connected with the first semi-ring structure and the second semi-ring structure. The first half-ring structure and the second half-ring structure may each include a plurality of first connection points B, for example, the first half-ring structure and the second half-ring structure may each include 3 uniformly distributed first connection points B. The mass 4 is connected to the first toroidal support 10 by a plurality of first connection points B.
In the embodiment of the present application, as shown in fig. 6, the first electric vibrating reed 2 is a disc-shaped structure having a second through hole 13, the fourth through hole of the mass block 4 is disposed opposite to the second through hole 13, for example, a center of the fourth through hole is located on an axis of the second through hole 13. The dish-shaped structural part 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 mass block 4. The dish-shaped structure takes the base as an initial position and extends in a direction departing from the mass block 4, the top end of the dish-shaped structure is a dish-shaped area, and the dish-shaped area is connected with the top shell 7. Specifically, the dish-shaped area comprises an annular area and a plurality of arc-shaped extension areas connected with the outer edge of the annular area, a third connection point C is arranged at the intersection area of the annular area and the extension areas, and the dish-shaped area is connected with the top shell 7 through the third connection point C.
Similarly (not shown in the figures), the second electric vibrating reed can be a disc-shaped structural member provided with a third through hole, and the counterweight body covers the third through hole; or the fifth through hole of the counterweight body is opposite to the third through hole, for example, the center of the fifth through hole is positioned on the axis of the third through hole. The dish-shaped structural part 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 bottom shell. The dish-shaped structure takes the base as the initial position to the direction that deviates from the drain pan extends, and the top of dish-shaped structure is the dish region, and the dish region is connected with the counter weight body. Specifically, the disc-shaped region comprises an annular region and a plurality of arc-shaped extension regions connected with the outer edge of the annular region, a fourth connecting point is arranged at the intersection region of the annular region and the extension regions, and the disc-shaped region is connected with the counterweight body through the fourth connecting point.
In the embodiment of the present application, as shown in fig. 3, 4, 10 and 11, the second electric vibrating reed 3 includes a second support 14, a second driving portion 15 and a third support 16, the third support 16 is connected to the second support 14 through the second driving portion 15, a first surface of the second support 14 facing the bottom case 8 is connected to the bottom case 8, and a second surface of the third support 16 facing the top case 7 is connected to the weight 5; when voltage is applied to the second electro-vibration member 3, the second driving portion drives 3 the third support 16 to drive the counterweight body 5 to move.
Specifically, as shown in fig. 3, 4, 10, and 11, a region in contact with the bottom case 8 is the second support 14, a region in contact with the weight 5 is the third support 16, and a region between the second support 14 and the third support 16, which is deformable, is the second driving portion 15.
Wherein, a gap is formed between the third bracket 16 and the bottom shell 8.
In an embodiment of the present application, the first electric vibrating reed is an ion conduction vibrating reed; when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass block to move along a first direction; when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate 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.
Specifically, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass to move a first distance along a first direction; when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate 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 greater than the first voltage, and the first distance is different from the second distance.
Wherein the first distance may be greater than the second distance, or the first distance is less than the second distance; and is not limited herein.
Specifically, when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the mass to move along a first direction at a first speed; when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the mass block to move along the first direction at a second speed; the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
Wherein the first rate may be greater than the second rate, or the first rate is less than the second rate; and is not limited herein.
In an embodiment of the present application, the second electric vibration plate is an ion conduction vibration plate; when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the counterweight body 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 counterweight body 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.
Specifically, when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the counterweight body to move a first distance along a first direction; when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the counterweight body to move a second distance along the first direction; the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.
Wherein the first distance may be greater than the second distance, or the first distance is less than the second distance; and is not limited herein.
Specifically, when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the weight body to move in a first direction at a first rate; when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the counterweight body to move along a first direction at a second speed; the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
Wherein the first rate may be greater than the second rate, or the first rate is less than the second rate; and is not limited herein.
In the embodiment of the present application, as shown in fig. 12, the ion conduction vibration 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 conduction vibration plate can be made of ion-exchange polymer metal composite (IPMC). The IPMC material is a novel electrically-actuated functional material, and uses an ion-exchange resin layer (such as fluorocarbon polymer, etc.) as a substrate, and plates a noble metal (such as platinum, silver, etc.) on the surface of the substrate to form electrode layers, i.e., 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 the numbers of the cations and the anions in fig. 12 are only schematic and do not represent actual conditions. As shown in fig. 13 and 14, 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 surfaces of the IPMC, thereby causing deformation and bending toward the anode surface, so that the degree of bending of the IPMC can be controlled by controlling the energization voltage or current of the IPMC, so that the IPMC is displaced in the transverse direction.
The IPMC material is a novel driving material and has the advantages of light driving weight, large displacement, low driving voltage and the like. The advantage of adopting IPMC is obvious, for example, IPMC is a non-magnetic material and can not generate magnetic interference; the displacement and velocity generated by IPMC deformation decrease in proportion to the thickness of IPMC, and the force generated by IPMC deformation increases in proportion to the cube of the thickness of IPMC. Therefore, the thickness of the IPMC can be set according to actual conditions to achieve the desired displacement, velocity and force generated by IPMC deformation.
By applying voltage to the ion conduction vibration plate, cations in the polymer electrolyte move to the cathode side, so that the difference of swelling of the front side and the back side of the ion conduction vibration plate is caused, the ion conduction vibration plate can be deformed due to the difference, the direction of the voltage applied to the ion conduction vibration plate is changed alternately, the direction of the deformation of the ion conduction vibration plate can be changed alternately, and therefore the mass block 4 or the counterweight body 5 is driven to move alternately, and vibration is generated. The vibration amplitude may be 0.1mm to 10mm, and the vibration amplitude may be controlled by setting the thickness of the ion conduction vibration piece and adjusting the magnitude of the current passing through the ion conduction vibration piece.
Fig. 13 is a schematic view showing the distribution of cations in the ion conduction vibration plate when a positive current is passed through the ion conduction vibration plate, wherein the cations move to the cathode side of the ion conduction vibration plate, the ion conduction vibration plate moves upward and drives the mass block 4 or the weight 5 to move upward, and the direction indicated by the arrow in fig. 13 is the moving direction of the ion conduction vibration plate.
Fig. 14 is a schematic view showing the distribution of cations in the ion conduction vibration plate when a negative current flows through the ion conduction vibration plate, wherein the cations move to the cathode side of the ion conduction vibration plate, the ion conduction vibration plate moves downward and drives the mass block 4 or the weight 5 to move downward, and the direction indicated by the arrow in fig. 14 is the moving direction of the ion conduction vibration plate. By applying a voltage to the ion conduction vibration plate, cations in the polymer electrolyte of the ion conduction vibration plate move to the cathode side, causing a difference in swelling of the front and back surfaces, so that the ion conduction vibration plate is deformed. When alternating current is applied to the ion conduction vibrating piece, the ion conduction vibrating piece drives the mass block 4 to vibrate in a reciprocating manner, so that vibration sense is generated; or the counterweight body 5 is driven to vibrate back and forth to produce sound.
The motor provided in the embodiments of the present application is further described below.
In view of the above technical problem, an embodiment of the present application provides a motor, which may specifically be a vibration motor capable of sounding: the loudspeaker and the vibration motor are integrated into one component, so that the internal space of the mobile phone is saved, the cost is reduced, magnetic steel and electromagnetism are not used, and interference to surrounding components is avoided.
The vibrating motor capable of generating sound provided by the embodiment of the application can specifically adopt an ion conduction vibrating reed based on a soft polymer actuator to replace a common linear motor elastic sheet and a vibrating diaphragm of a loudspeaker and provide driving force. The ion conduction vibrating reed is a vibrating reed which can vibrate in a reciprocating way by applying voltage, cations in polymer electrolyte move to the cathode side to cause the difference of swelling of the front side and the back side and the principle of reciprocating deformation, a low-power consumption electric signal of about 0.05W is automatically output when the temperature sensor in the whole machine reaches a temperature point needing vibration and heat dissipation, the electrified vibrating reed can vibrate in a reciprocating way continuously to realize the vibration of a vibrating part in a motor, or the electrified vibrating reed can vibrate in a reciprocating way continuously to drive peripheral vibration to sound, and the design of non-magnetic steel and non-magnetic coil can not generate interference and influence on circuits and devices around peripheral electronic equipment.
Specifically, the ion conduction vibration plate operates on the principle shown in fig. 5 (s in the figure indicates an electrode): the vibrating plate is a composite material actuator element in which gold is formed on an ion exchange resin as an electrode by special electroless gold plating and displacement performance is greatly improved by making the surface area of the electrode extremely large, and cations in a polymer electrolyte move to the cathode side by applying a voltage, causing a difference in swelling of the front and back surfaces and deformation. The vibration amplitude can cover from 0.1mm to 10mm, and the vibration amplitude can be reasonably controlled by controlling the thickness and the current magnitude of the vibration piece.
As shown in fig. 3 and 4, the vibration motor capable of generating sound according to the embodiment of the present invention includes an upper case (i.e., the top case 7), a lower case (i.e., the bottom case 8), an ion conduction vibration plate (i.e., the first and second electric vibration plates 2 and 3), a mass block 4, a weight body 5, a stopper (i.e., a specific implementation of the stopper 9), and the like. The ion conduction vibration piece 1 (i.e., the first electric vibration piece 2) may be connected and fixed to the mass block 4 by welding or bonding, and the other side may be connected and fixed to the upper case by the same method, the ion conduction vibration piece 1 may have various shapes, such as a wafer or a disk, and the mass block 4 may be made of tungsten alloy, which acts as a vertical movement, thereby generating a vibration sense. The ion conduction vibration piece 2 (i.e. the second electric vibration piece 3) can be fixedly connected with the lower shell by welding or bonding, a balance weight 5 is fixedly arranged at the middle position of the ion conduction vibration piece 2 by bonding, and the balance weight 5 mainly plays a role in adjusting the resonance frequency of sound production. And a limiting block is fixed at the position of the lower shell in a welding mode, so that the mass block 4 is prevented from colliding with the ion conduction vibration piece 2 to damage the ion conduction vibration piece 2. The upper shell and the lower shell can be fixed by welding. Wherein, the ion conduction vibrating reed 1 can be driven by low frequency, the ion conduction vibrating reed 1 drives the mass block 4 to move, and vibration sense (corresponding to the vibration mode); the ion conduction vibration plate 2 can drive air to vibrate to generate sound (corresponding to the following sound production mode) by high-frequency driving; the method comprises the following specific steps:
the vibration motor for generating sound can be supplied with ac power, and in the vibration mode, when the ion conduction vibration plate 1 is supplied with low-frequency positive direction current, as shown in fig. 8, cations move to the cathode side (upper side), and the ion conduction vibration plate moves upward, thereby driving the mass block 4 to vibrate upward.
When a negative direction current of a low frequency is applied to the ion conduction vibration plate 1, as shown in fig. 9, the positive ions move to the cathode side (lower side), and the ion conduction vibration plate 1 moves downward, thereby driving the mass block 4 to vibrate downward; when the motor is energized with an alternating current, vibration is thereby achieved.
In the sounding mode, when a high-frequency positive direction current is applied to the ion conduction vibration plate 2, as shown in fig. 10, cations move to the cathode side (upper side), and the ion conduction vibration plate 2 moves downward, and peripheral air is driven to vibrate synchronously to sound;
when a negative direction current of high frequency is applied to the ion conduction vibration plate 2, as shown in fig. 11, cations move to the cathode side (lower side), and the ion conduction vibration plate 2 moves upward to synchronously drive the peripheral air to vibrate; the ion conduction vibration plate 2 vibrates at a high frequency, thereby vibrating the surrounding air to generate sound.
The vibration motor capable of producing sound has the advantages that under the condition that the ion conduction vibration plate is not powered, and under the free state (namely, the stable state and the balance static state), the vibration mode and the sound production mode can be powered independently and can also be powered synchronously, the application requirements of electronic products are met, and the vibration motor is not limited herein.
As can be seen from the above, the technical effects achieved by the scheme provided by the embodiment of the present application include: one device realizes two functions of a loudspeaker and a vibration motor; meanwhile, the scheme is free of magnetic steel and coil design, so that interference and influence of a magnetic field and an electric field on circuits and devices around the electronic equipment are avoided.
An embodiment of the present application further provides an electronic device, including: the motor structure is described above.
The electronic device provided in the embodiment of the present application can implement each function implemented by the motor structure embodiments of fig. 1 to 9, and is not described herein again to avoid repetition.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (16)
1. A motor is characterized by comprising a shell, a first electric vibrating reed, a second electric vibrating reed, a mass block and a counterweight body, wherein the shell is provided with a containing cavity, the first electric vibrating reed, the second electric vibrating reed, the mass block and the counterweight body are arranged in the containing cavity, and the mass block and the counterweight body are positioned between the first electric vibrating reed and the second electric vibrating reed;
the shell comprises a top shell and a bottom shell which are distributed in an opposite mode, a first surface of the first electric vibrating reed is connected with the top shell, a second surface of the first electric vibrating reed is electrically connected with the mass block, a first surface of the second electric vibrating reed is connected with the bottom shell, and a second surface of the second electric vibrating reed is connected with the counterweight body;
when voltage is applied to the first electro-vibration piece, the first electro-vibration piece drives the mass block to move;
when voltage is applied to the second electro-vibration piece, the second electro-vibration piece drives the counterweight body to move;
wherein the mass is not in contact with the second electric vibrating reed and the counterweight.
2. The motor of claim 1, further comprising a stopper disposed between the second electric vibrating reed and the mass;
under the condition that the mass block is in limit fit with the limiting piece, the mass block is not in contact with the second electric vibrating reed and the counterweight body.
3. The motor as claimed in claim 2, wherein the stopper is fixed to an inner wall of the receiving cavity, or the stopper is disposed on the second surface of the second electric vibrating plate.
4. The motor of claim 2 or 3, wherein the mass is an annular structure, and a projection of the mass does not coincide with a projection of the counterweight in a moving direction of the mass.
5. The motor of claim 4, wherein the retainer is an annular structure;
in the moving direction of the mass block, a first annular projection area of the limiting member, a second annular projection area of the mass block, and a third projection area of the counterweight body are not overlapped with each other, the second annular projection area is located outside the third projection area, and the first annular projection area is located outside the second annular projection area.
6. The motor as claimed in claim 1, wherein the first electric vibrating reed includes a first ring-shaped holder having a first through hole and a first driving portion located in the first through hole and connected to a wall of the first through hole;
the first driving part is connected with the top shell towards a first surface of the top shell, and the first annular support is connected with the mass block towards a second surface of the mass block;
when voltage is applied to the first electric vibration piece, the first driving part drives the first annular support to drive the mass block to move.
7. The motor of claim 6, wherein the first annular bracket comprises first and second symmetrically disposed semi-annular members that cooperate to form the first through-hole.
8. The motor as claimed in claim 1, wherein the second electric vibrating reed includes a second bracket, a second driving portion and a third bracket, the third bracket is connected to the second bracket through the second driving portion, the second bracket is connected to the bottom case toward a first surface of the bottom case, and the third bracket is connected to the weight toward a second surface of the top case;
when voltage is applied to the second electric vibration piece, the second driving part drives the third support to drive the counterweight body to move.
9. The motor of claim 1, wherein the first electric vibrating plate is an ion conducting vibrating plate;
when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the mass block to move along a first direction;
when the voltage applied to the ion conduction vibration plate is a second voltage, the ion conduction vibration plate 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.
10. The motor of claim 9, wherein when the voltage applied to the ion conduction membrane is a first voltage, the ion conduction membrane drives the mass to move a first distance in a first direction;
when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate 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 greater than the first voltage, and the first distance is different from the second distance.
11. The motor of claim 9, wherein when the voltage applied to the ion conduction membrane is a first voltage, the ion conduction membrane drives the mass to move in the first direction at a first rate;
when the voltage applied to the ion conduction vibration plate is a third voltage, the ion conduction vibration plate drives the mass block to move along the first direction at a second speed;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
12. The motor of claim 1, wherein the second electric vibrating plate is an ion conducting vibrating plate;
when the voltage applied to the ion conduction vibration piece is a first voltage, the ion conduction vibration piece drives the counterweight body 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 counterweight body 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.
13. The motor as claimed in claim 12, wherein when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the weight body 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 counterweight body to move a second distance along the first direction;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.
14. The motor according to claim 12, wherein when the voltage applied to the ion conduction vibration plate is a first voltage, the ion conduction vibration plate drives the weight body to move in the first direction at a first rate;
when the voltage applied to the ion conduction vibration piece is a third voltage, the ion conduction vibration piece drives the counterweight body to move along a first direction at a second speed;
the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first rate is different from the second rate.
15. The motor according to claim 9 or 12, wherein the ion conduction 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.
16. An electronic device, comprising: a motor as claimed in any one of claims 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010698225.4A CN113965103A (en) | 2020-07-20 | 2020-07-20 | Motor and electronic device |
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| CN202010698225.4A CN113965103A (en) | 2020-07-20 | 2020-07-20 | Motor and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102111033A (en) * | 2011-01-19 | 2011-06-29 | 文登永柏微电机有限公司 | Coreless cylindrical vibrating motor |
| KR20140085227A (en) * | 2012-12-27 | 2014-07-07 | (주)테라다인 | Piezo Actuator |
| CN106026764A (en) * | 2016-07-29 | 2016-10-12 | 常州激振电子科技有限公司 | Piezoelectric linear vibration type mobile phone vibration motor and mechanical vibration amplifying mechanism |
| CN106130305A (en) * | 2016-08-22 | 2016-11-16 | 歌尔股份有限公司 | It is configured with the electronic product of extensional vibration motor |
| CN106936331A (en) * | 2017-05-11 | 2017-07-07 | 吉林大学 | A kind of mechanical oscillation amplifying type piezoelectric straight line mobile phone vibrating motor |
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2020
- 2020-07-20 CN CN202010698225.4A patent/CN113965103A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111033A (en) * | 2011-01-19 | 2011-06-29 | 文登永柏微电机有限公司 | Coreless cylindrical vibrating motor |
| KR20140085227A (en) * | 2012-12-27 | 2014-07-07 | (주)테라다인 | Piezo Actuator |
| CN106026764A (en) * | 2016-07-29 | 2016-10-12 | 常州激振电子科技有限公司 | Piezoelectric linear vibration type mobile phone vibration motor and mechanical vibration amplifying mechanism |
| CN106130305A (en) * | 2016-08-22 | 2016-11-16 | 歌尔股份有限公司 | It is configured with the electronic product of extensional vibration motor |
| CN106936331A (en) * | 2017-05-11 | 2017-07-07 | 吉林大学 | A kind of mechanical oscillation amplifying type piezoelectric straight line mobile phone vibrating motor |
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