CN109842335A - Electrical equipment and motor control assembly - Google Patents
Electrical equipment and motor control assembly Download PDFInfo
- Publication number
- CN109842335A CN109842335A CN201711190056.8A CN201711190056A CN109842335A CN 109842335 A CN109842335 A CN 109842335A CN 201711190056 A CN201711190056 A CN 201711190056A CN 109842335 A CN109842335 A CN 109842335A
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- motor
- magnetic field
- rotary shaft
- detection device
- pendulum
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Abstract
The present invention relates to a kind of electrical equipment and motor control assemblies, and wherein motor control assembly includes: detection device, are arranged in the magnetic field signal induction zone of the magnetic field generator and not with the movement of the rotary shaft and move；The detection device is for incuding magnetic field signal caused by the magnetic field generator and the magnetic field signal being converted to level signal；And control equipment, it is connect with the detection device, for receiving the level signal；The control equipment is used to determine the pendulum inclination angle of the rotary shaft according to the level signal, and is controlled such that the pendulum inclination angle of the rotary shaft lower than the threshold value revolving speed of the motor when the pendulum inclination angle is greater than threshold value.Above-mentioned motor control assembly may insure that the inner housing of receiving motor will not touch the outer housing of electrical equipment, realizes to the effective protection of motor and electrical equipment, improves the stability of electrical equipment.
Description
Technical field
The present invention relates to motor control technology fields, more particularly to a kind of electrical equipment and motor control assembly.
Background technique
Important composition component of the motor as electrical equipment, the stability of performance will greatly affect entire electrical equipment
Properties of product.Traditional electrical equipment occurs that effective protection cannot be carried out to motor when pendulum is inclined in the rotary shaft of motor, thus
So that the stability of electrical equipment is poor.
Summary of the invention
Based on this, it is necessary to provide the electrical equipment and motor control assembly of a kind of high stability.
A kind of motor control assembly, for controlling motor；The motor includes rotary shaft and is arranged described
The magnetic field generator of rotary shaft one end；The motor control assembly includes:
Detection device is arranged in the magnetic field signal induction zone of the magnetic field generator and not with the movement of the rotary shaft
And it moves；The detection device is for incuding magnetic field signal caused by the magnetic field generator and converting the magnetic field signal
For level signal；And
Equipment is controlled, is connect with the detection device, for receiving the level signal；The control equipment is used for basis
The level signal determines the pendulum inclination angle of the rotary shaft, and turns when the pendulum inclination angle is greater than threshold value to the motor
Speed is controlled such that the pendulum inclination angle of the rotary shaft lower than the threshold value.
Detection device in above-mentioned motor control assembly can examine the magnetic field signal of the magnetic field generator on motor
Control equipment is given in output after surveying and being converted to corresponding level signal.Motor can be determined according to the level signal by controlling equipment
The pendulum inclination angle of rotary shaft to the revolving speed of motor so that be controlled such that the pendulum inclination angle of rotary shaft according to the pendulum inclination angle
Lower than threshold value, and then the inner housing for ensuring to accommodate motor will not touch the outer housing of electrical equipment, realize to motor and electricity
The effective protection of dynamic equipment, improves the stability of electrical equipment.
The detection device is oppositely arranged with the magnetic field generator in the rotary shaft in one of the embodiments,；Institute
State detection device at a distance from the central axis of the rotary shaft be less than or equal to allowed band, and the detection device with it is described
Magnetic field generator keeps default spacing.
The detection device is arranged on the central axis of the rotary shaft in one of the embodiments,.
The detection device is Magnetic Sensor in one of the embodiments,.
The Magnetic Sensor is Hall switch in one of the embodiments,.
The control equipment is used for according to the level determination of the level signal and institute in one of the embodiments,
State the pendulum inclination angle of the corresponding rotary shaft of level.
The control equipment is used to reduce institute when the pendulum inclination angle is greater than the threshold value in one of the embodiments,
The revolving speed or the control motor for stating motor stop working.
The control equipment is also used to by the level of the level signal and with reference to electricity in one of the embodiments,
It is flat relatively with the pendulum folk prescription of the determination rotary shaft to, and according to the pendulum folk prescription to the pendulum inclination angle to the motor into
Row control.
The control equipment is also used to calculate institute according to the changing rule of the level signal in one of the embodiments,
State the revolving speed of motor.
A kind of electrical equipment, the inner housing including outer housing, motor and the receiving motor；The stator of the motor with
Keep opposing stationary between the inner housing；The outer housing is not moved with the movement of the inner housing；The motor includes
Rotary shaft and the magnetic field generator that described rotary shaft one end is set；The electrical equipment further includes motor control assembly；Institute
Stating motor control assembly includes:
Detection device is arranged on the outer housing and in the magnetic field signal induction zone in the magnetic field generator；Institute
Detection device is stated for incuding the magnetic field signal of the magnetic field generator generation and the magnetic field signal being converted to level signal；
And
Equipment is controlled, is connect with the detection device and the motor；The control equipment is used to be believed according to the level
It number determines the pendulum inclination angle of the rotary shaft, and the revolving speed of the motor is controlled when the pendulum inclination angle is greater than threshold value
So that the pendulum inclination angle of the rotary shaft is lower than the threshold value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the motor control assembly in an embodiment；
Fig. 2 is the level signal schematic diagram of the detection device output in an embodiment；
Fig. 3 is the cross-sectional view when rotary shaft in the electrical equipment in an embodiment does not put inclined；
Fig. 4 is the cross-sectional view when rotary shaft in the electrical equipment in an embodiment occurs pendulum partially and touches with shell.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Motor control assembly in one embodiment can control the course of work of motor to realize and have to motor
Effect protection.The motor control assembly can be adapted for having in the electrical equipment of double Shell, such as it can be adapted for having
In the oscillating machine of double Shell.The electrical equipment includes outer housing, motor and the inner housing for accommodating motor.In electrical equipment
Keep opposing stationary in the course of work, between motor stator and inner housing；Because there being gap between inner housing and outer housing, outside
Shell will not move together with inner housing.Motor includes rotary shaft 10 and the magnetic field generator that 10 one end of rotary shaft is arranged in
20.Fig. 1 is the structural schematic diagram of the motor control assembly in an embodiment, which includes 110 He of detection device
Control equipment 120.
Detection device 110 is arranged on the outer housing and in the magnetic field signal induction zone in magnetic field generator 20.?
That is, in the present embodiment, the position of detection device 110 be it is fixed, do not influenced by the movement of rotary shaft 10.Detection device is used
In induced magnetic field generator 20 generate magnetic field signal and the magnetic field signal is converted into corresponding level signal.Magnetic field generator
20 magnetic field signal induction zone is the region for the magnetic field signal that detection device 110 can sense that magnetic field generator 20 generates.?
In one embodiment, the size of the magnetic field signal induction zone can sensitivity according to detection device 110 and magnetic field generator 20
Magnetic field signal intensity and change, however it is not limited to a certain specific regional scope.
In one embodiment, the equipment that magnetic field generator 20 can generate magnetic field for multistage magnet etc..When magnetic field is sent out
When raw device 20 is rotated with rotary shaft 10, changing magnetic field can be generated.What detection device 110 can be generated with induced magnetic field generator 20
The magnetic field signal is simultaneously converted to corresponding level signal by magnetic field signal.In one embodiment, which is magnetic sensing
Device.For example, the detection device 110 can use Hall switch.
Control equipment 120 is connect with detection device 110.It controls equipment 120 and receives the level letter that detection device 110 exports
Number, and determine according to the level signal pendulum inclination angle of rotary shaft 10.In one embodiment, it controls in equipment 120 and is stored with electricity
Flat size and the corresponding table of the pendulum inclination angle of rotary shaft or corresponding relationship algorithm, so that it can be according to level signal
The pendulum inclination angle of rotary shaft 10 corresponding with the level can be obtained in level.Control equipment 120 is also used to rotary shaft
10 pendulum inclination angle is monitored, and when the pendulum inclination angle is greater than threshold value, is controlled such that rotary shaft to the revolving speed of motor
10 pendulum inclination angle is lower than threshold value.In the present embodiment, in the rotary course of rotary shaft 10, due to inner housing and rotary shaft 10
The inner housing for keeping opposing stationary, therefore accommodating motor can also follow the movement of the rotary shaft 10 of motor and move, to occur
Pendulum is inclined.During pendulum occurs for inner housing partially, since outer housing is not moved with the movement of inner housing, to work as inner housing
Pendulum can be touched after being biased to a fixed pendulum inclination angle with outer housing.Therefore the threshold value in the present embodiment can put for rotary shaft
Pendulum inclination angle when the touching to the rear with external shell, or it is lower than the pendulum inclination angle.In one embodiment, control equipment 120 exists
When the pendulum inclination angle of rotary shaft 10 is greater than threshold value, the revolving speed of motor can be reduced, to control the pendulum inclination angle of rotary shaft 10 default
In allowed band.In another embodiment, control equipment 120 can also be when the pendulum inclination angle of rotary shaft 10 be greater than threshold value, directly
It connects control motor to stop working, to protect to motor, avoids the inner housing of receiving motor and the shell of its electrical equipment
Body is touched, and realizes the protection to motor and electrical equipment, and then improve the stability of whole equipment.
Detection device 110 in above-mentioned motor control assembly can magnetic field signal to the magnetic field generator 20 on motor into
Control equipment 120 is given in output after row detects and is converted to corresponding level signal.Controlling equipment 120 can be with according to the level signal
The pendulum inclination angle of the rotary shaft 10 of motor is determined to be controlled such that rotation to the revolving speed of motor according to the pendulum inclination angle
The pendulum inclination angle of shaft 10 is lower than threshold value, and then the inner housing for ensuring to accommodate motor will not touch the outer housing of electrical equipment,
It realizes to the effective protection of motor and electrical equipment, improves the stability of electrical equipment.
In one embodiment, detection device 110 is oppositely arranged with the magnetic field generator 20 in rotary shaft 10, namely detection is set
Standby 110 can't be arranged in rotary shaft 10.When rotary shaft 10 does not put inclined, detection device 110 and rotary shaft 10 and
The relative positional relationship of magnetic field generator 20 is fixed.Specifically, the central axis of detection device 110 and rotary shaft 10 away from
From being less than or equal to allowed band, and detection device 110 and magnetic field generator 20 keep default spacing.That is, detection device 110
It is arranged on the central axis of rotary shaft 10 or in the allowed band of central axis.When the setting of detection device 110 exists
When on the central axis of rotary shaft 10, due to rotary shaft occur left swing it is inclined or it is right pendulum it is inclined when, position does not occur for detection device 110
The movement set, therefore symmetric relation is also presented in the magnetic field signal that detection device 110 detects, thus only it needs to be determined that left swing is on the lower side
Pendulum inclination angle and level signal size corresponding relationship be the magnetic field signal sensed during can determine that entire pendulum partially and
The corresponding relationship of level signal size.In other examples, when the central axis of rotary shaft 20 is arranged in detection device 110
When neighbouring, detection device 110 does not have symmetry in the level signal that rotary shaft 20 occurs to detect when pendulum is inclined, to need
Rotary shaft 20 is obtained in the corresponding pass of different pendulum inclination angles and the level signal that detection device 110 detects by previous experiments
System.The magnetic field signal that default spacing between detection device 110 and magnetic field generator 20 can be generated according to magnetic field generator 20
Intensity and the sensitivity of detection device 110 be adjusted, it is only necessary to ensuring detection device 110, region can be just in the position
Really detect the magnetic field signal that magnetic field generator 20 generates.In one embodiment, detection device 110 is arranged in rotary shaft 10
Central axis on, as shown in Figure 1.
In one embodiment, control equipment 120 can also be determined according to level signal the pendulum folk prescription of rotary shaft 10 to.
Specifically, the level of level signal that control equipment 120 can will receive is compared with reference level so that it is determined that rotary shaft
10 pendulum folk prescription is to as shown in Figure 2.For example, in one embodiment, reference level 0.5V, when the level signal received
When level is higher than 0.5V, then it can determine that rotary shaft 10 is left avertence, on the contrary then determining rotary shaft 10 is right avertence.Control equipment 120
The pendulum folk prescription for determining rotary shaft 10 backward, can according to the pendulum folk prescription to and pendulum inclination angle the revolving speed of motor is carried out more
Accurately regulation.
In one embodiment, control equipment 120 can also be counted according to the changing rule of level signal such as period of change etc.
Calculate the revolving speed of motor.Namely in the present embodiment, detection device 110 and control equipment 120 are controlled in the revolving speed to motor
While to realize to electric motor protecting, the measurement to the revolving speed of motor can also be realized, to be conducive to mitigate the weight of equipment.
One embodiment of the invention also provides a kind of electrical equipment comprising outer housing, motor and the inner casing for accommodating motor
Body namely the electrical equipment have double-shell structure.In the course of work of electrical equipment, protected between motor stator and inner housing
It holds opposing stationary；Because there being gap between inner housing and outer housing, outer housing will not move together with inner housing.Motor packet
It includes rotary shaft and the magnetic field generator of rotary shaft one end is set.The electrical equipment further includes as described in preceding any embodiment
Motor control assembly, the detection device in the motor control assembly will not be moved with inner housing.In one embodiment, motor
Detection device in control device can be fixed on outer housing.Fig. 3 be an embodiment in electrical equipment in rotary shaft not
Occur pendulum it is inclined when cross-sectional view, Fig. 4 be an embodiment in electrical equipment in rotary shaft occur pendulum partially and with shell touch when
Cross-sectional view.Wherein, 310 outer housing is indicated, 320 indicate inner housing, and 330 indicate motor.It is filled using comprising above-mentioned motor control
The electrical equipment set can prevent electrical equipment from occurring such as the situation in Fig. 4, can also prevent the inner housing of receiving motor with
Outer housing touching is conducive to the stability for improving electrical equipment to carry out effective protection to electrical equipment and motor itself.
In one embodiment, which can be the oscillating machine with double Shell.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of motor control assembly, for controlling motor；The motor includes rotary shaft and is arranged in the rotation
The magnetic field generator of shaft one end；It is characterized in that, the motor control assembly includes:
Detection device is arranged in the magnetic field signal induction zone of the magnetic field generator and not with the movement of the rotary shaft and transports
It is dynamic；The detection device is for incuding magnetic field signal caused by the magnetic field generator and the magnetic field signal being converted to electricity
Ordinary mail number；And
Equipment is controlled, is connect with the detection device, for receiving the level signal；The control equipment is used for according to
Level signal determines the pendulum inclination angle of the rotary shaft, and when the pendulum inclination angle is greater than threshold value to the revolving speed of the motor into
Row control is so that the pendulum inclination angle of the rotary shaft is lower than the threshold value.
2. motor control assembly according to claim 1, which is characterized in that on the detection device and the rotary shaft
Magnetic field generator is oppositely arranged；The detection device is less than or equal at a distance from the central axis of the rotary shaft allows model
It encloses, and the detection device and the magnetic field generator keep default spacing.
3. motor control assembly according to claim 2, which is characterized in that the detection device is arranged in the rotary shaft
Central axis on.
4. motor control assembly according to claim 1, which is characterized in that the detection device is Magnetic Sensor.
5. motor control assembly according to claim 4, which is characterized in that the Magnetic Sensor is Hall switch.
6. motor control assembly according to claim 1, which is characterized in that the control equipment is used for according to the level
The level of signal determines the pendulum inclination angle of the rotary shaft corresponding with the level.
7. motor control assembly according to claim 1, which is characterized in that the control equipment is used in the pendulum drift angle
Degree reduces the revolving speed of the motor when being greater than the threshold value or the control motor stops working.
8. motor control assembly according to claim 1, which is characterized in that the control equipment is also used to the level
The level of signal compared with reference level with the pendulum folk prescription of the determination rotary shaft to, and according to the pendulum folk prescription to and institute
Pendulum inclination angle is stated to control the motor.
9. motor control assembly according to claim 1, which is characterized in that the control equipment is also used to according to the electricity
The changing rule of ordinary mail number calculates the revolving speed of the motor.
10. a kind of electrical equipment, the inner housing including outer housing, motor and the receiving motor；The stator of the motor with
Keep opposing stationary between the inner housing；The outer housing is not moved with the movement of the inner housing；The motor includes
Rotary shaft and the magnetic field generator that described rotary shaft one end is set；It is characterized in that, the electrical equipment further includes motor
Control device；The motor control assembly includes:
Detection device is arranged on the outer housing and in the magnetic field signal induction zone in the magnetic field generator；The inspection
Measurement equipment is used to incude the magnetic field signal that the magnetic field generator generates and the magnetic field signal is converted to level signal；And
Equipment is controlled, is connect with the detection device and the motor；The control equipment is used for true according to the level signal
The pendulum inclination angle of the fixed rotary shaft, and the revolving speed of the motor is controlled such that when the pendulum inclination angle is greater than threshold value
The pendulum inclination angle for obtaining the rotary shaft is lower than the threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190056.8A CN109842335B (en) | 2017-11-24 | 2017-11-24 | Electric device and motor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190056.8A CN109842335B (en) | 2017-11-24 | 2017-11-24 | Electric device and motor control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109842335A true CN109842335A (en) | 2019-06-04 |
| CN109842335B CN109842335B (en) | 2021-09-07 |
Family
ID=66876146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711190056.8A Active CN109842335B (en) | 2017-11-24 | 2017-11-24 | Electric device and motor control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109842335B (en) |
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| CN202150835U (en) * | 2011-03-24 | 2012-02-22 | 上海众辰电子科技有限公司 | Special frequency converter for carving and milling machine |
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| CN104967371A (en) * | 2015-04-15 | 2015-10-07 | 北京航空航天大学 | Triaxial rotation mechanism control apparatus with real-time fault monitoring capability |
| CN105522484A (en) * | 2016-02-24 | 2016-04-27 | 苏州瑞格思创光电科技有限公司 | Machining control method for glass engraving and milling machine |
| CN106557069A (en) * | 2015-09-29 | 2017-04-05 | 发那科株式会社 | Rote learning apparatus and method and the lathe with the rote learning device |
| CN107272586A (en) * | 2016-04-08 | 2017-10-20 | 发那科株式会社 | Rote learning device, learning by rote, failure precognition apparatus and system |
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2017
- 2017-11-24 CN CN201711190056.8A patent/CN109842335B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241787A (en) * | 2007-02-06 | 2008-08-13 | 上海瑞可运动器材有限公司 | A making method for Hall remote pole potentiometer |
| EP1968184A2 (en) * | 2007-03-08 | 2008-09-10 | Hitachi Industrial Equipment Systems Co. Ltd. | Motor controller and motor control system |
| CN202150835U (en) * | 2011-03-24 | 2012-02-22 | 上海众辰电子科技有限公司 | Special frequency converter for carving and milling machine |
| CN103383281A (en) * | 2013-06-27 | 2013-11-06 | 苏州边枫电子科技有限公司 | Automatic detecting and protecting device for drill vibration |
| CN104967371A (en) * | 2015-04-15 | 2015-10-07 | 北京航空航天大学 | Triaxial rotation mechanism control apparatus with real-time fault monitoring capability |
| CN106557069A (en) * | 2015-09-29 | 2017-04-05 | 发那科株式会社 | Rote learning apparatus and method and the lathe with the rote learning device |
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| CN109842335B (en) | 2021-09-07 |
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