CN111769687A - Active damping device and control method - Google Patents

Active damping device and control method Download PDF

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Publication number
CN111769687A
CN111769687A CN202010736393.8A CN202010736393A CN111769687A CN 111769687 A CN111769687 A CN 111769687A CN 202010736393 A CN202010736393 A CN 202010736393A CN 111769687 A CN111769687 A CN 111769687A
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CN
China
Prior art keywords
motor
vibration
sensor
circuit board
damping device
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010736393.8A
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Chinese (zh)
Inventor
管恩平
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Shenzhen Yunding Information Technology Co Ltd
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Shenzhen Yunding Information Technology Co Ltd
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Filing date
Publication date
Application filed by Shenzhen Yunding Information Technology Co Ltd filed Critical Shenzhen Yunding Information Technology Co Ltd
Priority to CN202010736393.8A priority Critical patent/CN111769687A/en
Publication of CN111769687A publication Critical patent/CN111769687A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/04—Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The embodiment of the invention discloses an active damping device and a control method, wherein the device comprises: the handle comprises a handle shell, a support, a circuit board, a first motor and a second motor, wherein the circuit board is electrically connected with the first motor and the second motor respectively, the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, the first motor is connected with a vibration part and used for providing power for the vibration part, the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as the first motor. The second motor is arranged, and the vibration of the second motor is the reverse vibration with the same frequency as the first motor, so that the real-time accurate and stable active damping effect is achieved, the device is simple in structure, and the comfort level of a user using the personal care product is further improved.

Description

Active damping device and control method
Technical Field
The invention relates to the technical field of motor damping, in particular to an active damping device and a control method.
Background
Along with the development of science and technology, more and more small-size electronic personal care products receive people's favor, make people's life more comfortable convenient. At present, the small-size electronic personal care products that people used commonly include electric toothbrush, electric shaver and handheld dryer etc. and these small-size electronic personal care products all need the motor to provide power, and the vibrations of motor often can lead to the vibrations of people's hand-held part when using, so this comfort level that has just so greatly reduced people use small-size personal care products. In order to improve the comfort of using personal care products, people begin to use various methods to absorb shock to a motor, for an electric toothbrush, a shock absorption pad or other shock absorption materials are generally placed between the motor and the inner wall of a handle of the electric toothbrush, so as to separate the motor from the handle, thereby achieving a shock absorption effect, however, the scheme has a stable shock absorption effect when the motor is kept under a certain parameter shock, but when the shock parameter of the motor changes, the shock absorption effect of the method cannot be maintained at a stable level.
Disclosure of Invention
In view of the above, it is desirable to provide an active damping device and a control method thereof, and an object of the present invention is to achieve damping of personal care products by using active damping technology to counteract the vibration force from the main motor.
In a first aspect, the present application provides an active damping device, the device comprising: the handle comprises a handle shell, a bracket, a circuit board, a first motor and a second motor;
the circuit board is electrically connected with the first motor and the second motor respectively;
the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, and the first motor is connected with the vibration part and used for providing power for the vibration part;
the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as that of the first motor.
In one embodiment, the circuit board comprises a plurality of sub circuit boards connected by a flexible circuit or the circuit board comprises one sub circuit board, the active damping device further comprises a controller and a sensor, the controller and the sensor are respectively located on the plurality of connected sub circuit boards or the controller and the sensor are located on the one sub circuit board, and the controller is respectively electrically connected with the sensor, the first motor and the second motor;
the sensor comprises a vibration sensor which is an acceleration sensor, a three-axis acceleration sensor, an angular velocity sensor, a pressure-sensitive sensor or a microphone audio sensor.
In one embodiment, the bracket supports the circuit board, and the circuit board is tightly attached to the bracket or the bracket is utilized to make the circuit board tightly attached to the inner wall of the handle shell.
In one embodiment, the device further comprises a battery located within the handle housing for providing power to the device.
In one embodiment, the motor shaft of the first motor is mechanically connected with the vibration component through rigidity, and the stator of the first motor is connected with the bracket through rigidity or through rigidity and soft glue matching.
In one embodiment, the stator of the second motor is rigidly connected to the bracket or rigidly connected to the soft rubber.
In one embodiment, the stator of the second motor may be rigidly connected to the stator of the first motor or may be connected to the stator of the first motor by soft glue.
In a second aspect, the present application provides a control method comprising:
the controller controls the first motor to start, and obtains vibration data of the bracket or the handle shell, which are brought by the first motor and collected by the sensor;
and the controller controls the second motor to synchronously and reversely vibrate according to the vibration data.
Optionally, the controller controls the second motor to synchronously and reversely vibrate according to the vibration data, including:
when the vibration data is smaller than a target value, the controller controls the second motor to maintain the vibration parameter unchanged;
when the vibration data is larger than or equal to the target value, the controller adjusts the vibration parameters of the second motor until the vibration data collected by the sensor is smaller than the target value.
Optionally, the vibration parameter includes an amplitude control parameter, a vibration waveform curve control parameter, a vibration phase difference control parameter, or a vibration frequency control parameter, which vibrates in a direction opposite to the first motor.
The embodiment of the invention has the following beneficial effects:
the active damping device and the control method provided by the invention comprise the following steps: the handle comprises a handle shell, a support, a circuit board, a first motor and a second motor, wherein the circuit board is electrically connected with the first motor and the second motor respectively, the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, the first motor is connected with a vibration part and used for providing power for the vibration part, the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as the first motor. Through setting up the second motor for can control the second motor and carry out the reverse vibrations with first motor with the frequency, in order to reach real-time accurate and stable initiative shock attenuation effect, and this device simple structure has further improved the comfort level that the user used individual nursing articles for use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic view of an active damping device according to one embodiment;
FIG. 2 is a schematic view of an embodiment of an internal drive of an active damping device;
fig. 3 is a flowchart illustrating a control method according to an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
As shown in fig. 1, an embodiment of an active damping device includes: the vibration-damping handle comprises a handle shell 101, a support 106, a circuit board 102, a first motor 103 and a second motor 104, wherein the circuit board 102 is electrically connected with the first motor 103 and the second motor 104 respectively, the first motor 103 is fixed on the support 106, the support 106 is fixed on the inner wall of the handle shell 101, the first motor 103 is connected with a vibration part and used for providing power for the vibration part, the second motor 104 is fixed on the support 106 or the first motor 103, the support 106 is fixed on the inner wall of the handle shell 101, and the vibration of the second motor 104 is reverse vibration with the same frequency as that of the first motor 103.
In this embodiment, the circuit board 102 includes a plurality of sub circuit boards connected by a flexible circuit or the circuit board 102 includes one sub circuit board, the active damping device further includes a controller and a sensor, the controller and the sensor are respectively located on the plurality of connected sub circuit boards or the controller and the sensor are located on one sub circuit board, the controller is respectively electrically connected to the sensor, the first motor 103 and the second motor 104, the sensor includes a vibration sensor, and the vibration sensor is any one of an acceleration sensor, a triaxial acceleration sensor, an angular velocity sensor, a pressure sensitive sensor or a microphone audio sensor, which can be used to collect data for evaluating the vibration condition of the bracket 106 or the handle housing 101.
In the embodiment of the present application, the bracket 106 supports the circuit board 102, and the circuit board 102 is tightly attached to the bracket 106 or the circuit board 102 is tightly attached to the inner wall of the handle casing 101 by using the bracket 106.
In the present embodiment, the device further comprises a battery 107, the battery 107 being located inside the handle housing 101 for providing electrical power to the device.
In the embodiment of the present application, the motor shaft of the first motor 103 is mechanically connected to the vibration component through rigidity, and the stator of the first motor 103 is connected to the bracket 106 through rigidity or through rigidity and soft glue fit.
In the embodiment of the present application, the stator of the second motor 104 is rigidly connected to the bracket 106 or rigidly connected to the bracket by a soft glue.
In the embodiment of the present application, the stator of the second motor 104 may also be rigidly connected to the stator of the first motor 103 or flexibly connected thereto.
In the present embodiment, the second motor 104 is a linear motor.
To more clearly illustrate the working mode of the active damping device of the present invention, please refer to fig. 2, which is a schematic diagram of the internal driving of the active damping device of the present invention.
In the embodiment of the application, the active damping device can be used for various small electric household articles driven by motors, such as an electric toothbrush, an electric shaver and a handheld air duct, and is arranged in the handle of an article for personal care. The circuit board 102 in the active damping device comprises a plurality of sub circuit boards connected by a flexible circuit or the circuit board 102 comprises a sub circuit board, the active damping device further comprises a controller and a sensor, the controller and the sensor are respectively located on the plurality of connected sub circuit boards or the controller and the sensor are located on one sub circuit board, the circuit board 102 further comprises a memory for storing software or software and data information for controlling the active damping device, the controller can control the working states of the sensor, the first motor 103 and the second motor 104, when the nursing article is started, the first motor 103 starts to vibrate for providing power for a vibration part of the nursing article, because the first motor 103 is fixed on the bracket 106 of the nursing article and the bracket 106 is fixed on the inner wall of the handle casing 101, the vibration of the first motor 103 can drive the bracket 106 of the nursing article and the handle casing 101 to vibrate, meanwhile, the sensor in close contact with the bracket 106 or the handle casing 101 transmits vibration data of the bracket 106 or the handle casing 101 of the nursing article to the controller, and the controller controls the second motor 104 to synchronously and reversely vibrate according to the received vibration data of the bracket 106 or the handle casing 101, so that vibration transmitted to the handle casing 101 by the first motor 103 is offset by vibration of the second motor 104, and an active damping effect is achieved.
The vibration data of the bracket 106 or the handle casing 101 collected by the sensor includes at least one of handle radial vibration acceleration, handle three-axis vibration acceleration, handle vibration frequency, handle vibration waveform, handle tangential vibration angular velocity, handle three-axis vibration angular velocity, pressure change amplitude, pressure change frequency, sound frequency and intensity, and the like.
Further, the sensor includes at least one vibration sensor, which may be an acceleration sensor, a three-axis acceleration sensor, an angular velocity sensor, a pressure-sensitive sensor, or a microphone audio sensor, or any sensor that can be used to collect data for evaluating the vibration of the support 106 or the handle housing 101.
Further, the number of sensors, the first motor 103 and the second motor 104 in the active damping device is not limited herein.
In an embodiment of the present application, an active damping device includes: the handle comprises a handle shell, a support, a circuit board, a first motor and a second motor, wherein the circuit board is electrically connected with the first motor and the second motor respectively, the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, the first motor is connected with a vibration part and used for providing power for the vibration part, the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as the first motor. Through setting up the second motor for can control the second motor and carry out the reverse vibrations with first motor with the frequency, in order to reach real-time accurate and stable initiative shock attenuation effect, and this device simple structure has further improved the comfort level that the user used individual nursing articles for use.
Fig. 3 is a schematic flow chart of a control method used in the active damping device in the embodiment of the present application, the method including:
301, controlling the first motor to start by the controller, and acquiring vibration data of the handle shell, which is brought by the first motor and acquired by the sensor;
and step 302, the controller controls the second motor to synchronously and reversely vibrate according to the vibration data.
In the embodiment of the present application, the controller in the circuit board 102 of the active damping device controls the first motor 103 to start, since the first motor is fixed to the bracket 106, the bracket 106 is fixed to the inner wall of the handle housing 101, therefore, the started first motor 103 drives the bracket 106 and the handle casing 101 to vibrate, the sensor in the circuit board 102 collects the vibration data of the bracket 106 or the handle casing 101, the controller obtains the vibration data, and further, the controller controls the vibration state of the second motor 104 according to the obtained vibration data, when the vibration data acquired by the controller is smaller than the target value, the controller controls the second motor 104 to maintain the current vibration parameter unchanged, when the vibration data acquired by the controller is greater than or equal to the target value, the controller adjusts the vibration parameter of the second motor 104 until the vibration data acquired by the sensor is less than the target value.
It should be noted that, after the step 302 is executed, the step 301 is further executed continuously until the active damping device stops working, so that the whole control method is a real-time and continuous control method, and further, the active damping device realizes a real-time, accurate and stable active damping effect, and further ensures higher comfort level of the user when using the personal care product.
In an embodiment of the present application, an active damping device includes: the handle comprises a handle shell, a support, a circuit board, a first motor and a second motor, wherein the circuit board is electrically connected with the first motor and the second motor respectively, the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, the first motor is connected with a vibration part and used for providing power for the vibration part, the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as the first motor. Through setting up the second motor for can control the second motor and carry out the reverse vibrations with first motor with the frequency, and this application embodiment still provides a control method, carries out real time control through the vibrations of controller to the second motor, in order to reach real-time accurate and stable initiative shock attenuation effect, and this device simple structure has further improved the comfort level that the user used individual nursing articles for use.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An active damping device, characterized in that the device comprises: the handle comprises a handle shell, a bracket, a circuit board, a first motor and a second motor;
the circuit board is electrically connected with the first motor and the second motor respectively;
the first motor is fixed on the support, the support is fixed on the inner wall of the handle shell, and the first motor is connected with the vibration part and used for providing power for the vibration part;
the second motor is fixed on the support or the first motor, the support is fixed on the inner wall of the handle shell, and the vibration of the second motor is the reverse vibration with the same frequency as that of the first motor.
2. The active damping device of claim 1, wherein the circuit board comprises a plurality of sub-circuit boards connected by a flexible circuit or the circuit board comprises one sub-circuit board, the active damping device further comprising a controller and a sensor, the controller and the sensor being respectively located on the plurality of connected sub-circuit boards or the controller and the sensor being located on the one sub-circuit board, the controller being electrically connected to the sensor, the first motor, and the second motor, respectively;
the sensor comprises a vibration sensor which is an acceleration sensor, a three-axis acceleration sensor, an angular velocity sensor, a pressure-sensitive sensor or a microphone audio sensor.
3. The active vibration damping device of claim 1, wherein the bracket supports the circuit board, and the circuit board is tightly attached to the bracket or the bracket is used to make the circuit board tightly attached to the inner wall of the handle housing.
4. The active vibration damping device of claim 1, further comprising a battery located within the handle housing for providing electrical power to the device.
5. The active damping device according to claim 1, wherein the motor shaft of the first motor is mechanically connected to the vibration member by a rigid connection, and the stator of the first motor is connected to the bracket by a rigid connection or by a rigid and soft rubber fit.
6. The active damping device according to claim 1, wherein the stator of the second motor is rigidly connected to the bracket or rigidly connected to the bracket by a soft gel fit.
7. The active damping device according to claim 1, wherein the stator of the second motor is further rigidly connected to the stator of the first motor or flexibly connected thereto.
8. A control method applied to the active damping device according to any one of claims 2 to 7, the method comprising:
the controller controls the first motor to start, and obtains vibration data of the bracket or the handle shell, which are brought by the first motor and collected by the sensor;
and the controller controls the second motor to synchronously and reversely vibrate according to the vibration data.
9. The method of claim 8, wherein the controller controls the second motor to synchronously reverse the vibration according to the vibration data, comprising:
when the vibration data is smaller than a target value, the controller controls the second motor to maintain the vibration parameter unchanged;
when the vibration data is larger than or equal to the target value, the controller adjusts the vibration parameters of the second motor until the vibration data collected by the sensor is smaller than the target value.
10. The method of claim 9, wherein the vibration parameter comprises an amplitude control parameter, a vibration waveform curve control parameter, a vibration phase difference control parameter, or a vibration frequency control parameter of the vibration in a direction opposite to the first motor.
CN202010736393.8A 2020-07-28 2020-07-28 Active damping device and control method Pending CN111769687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010736393.8A CN111769687A (en) 2020-07-28 2020-07-28 Active damping device and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010736393.8A CN111769687A (en) 2020-07-28 2020-07-28 Active damping device and control method

Publications (1)

Publication Number Publication Date
CN111769687A true CN111769687A (en) 2020-10-13

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Application Number Title Priority Date Filing Date
CN202010736393.8A Pending CN111769687A (en) 2020-07-28 2020-07-28 Active damping device and control method

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CN (1) CN111769687A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110073843A (en) * 2009-12-24 2011-06-30 엘지전자 주식회사 Controlling apparatus for speaker unit and display apparatus therewith
CN106453721A (en) * 2016-11-28 2017-02-22 北京小米移动软件有限公司 Mobile device
CN208508681U (en) * 2018-07-24 2019-02-15 舒可士（深圳）科技有限公司 A kind of damping motor and electric toothbrush
CN109646133A (en) * 2019-01-17 2019-04-19 东莞微感电子技术有限公司 It is a kind of can monitoring toothbrushing dynamics electric toothbrush
CN110996222A (en) * 2018-10-02 2020-04-10 三星显示有限公司 Display device
CN212992112U (en) * 2020-07-28 2021-04-16 深圳市云顶信息技术有限公司 Active damping device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110073843A (en) * 2009-12-24 2011-06-30 엘지전자 주식회사 Controlling apparatus for speaker unit and display apparatus therewith
CN106453721A (en) * 2016-11-28 2017-02-22 北京小米移动软件有限公司 Mobile device
CN208508681U (en) * 2018-07-24 2019-02-15 舒可士（深圳）科技有限公司 A kind of damping motor and electric toothbrush
CN110996222A (en) * 2018-10-02 2020-04-10 三星显示有限公司 Display device
CN109646133A (en) * 2019-01-17 2019-04-19 东莞微感电子技术有限公司 It is a kind of can monitoring toothbrushing dynamics electric toothbrush
CN212992112U (en) * 2020-07-28 2021-04-16 深圳市云顶信息技术有限公司 Active damping device

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