CN202631563U - Motor speed detector - Google Patents
Motor speed detector Download PDFInfo
- Publication number
- CN202631563U CN202631563U CN 201220213842 CN201220213842U CN202631563U CN 202631563 U CN202631563 U CN 202631563U CN 201220213842 CN201220213842 CN 201220213842 CN 201220213842 U CN201220213842 U CN 201220213842U CN 202631563 U CN202631563 U CN 202631563U
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- CN
- China
- Prior art keywords
- motor
- grating
- sensor
- motor speed
- washing machine
- Prior art date
- 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.)
- Expired - Fee Related
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The utility model relates to a motor speed detector, particularly used for detecting the rotating speed of a motor of a washing machine. The motor speed detector comprises a grating disk and a sensor, wherein the grating disk is mounted on a motor shaft; the sensor comprises a photoelectric emitter and receiver, which are respectively arranged closely to two side surfaces of a grating of the grating disc; the sensor is connected with a power supply, and the receiver of the sensor is connected with a control system of the washing machine. When being applied to household appliances, the motor speed detector can realize the control of the rotating speed of the motor, the judgment of system balance, and the real-time tracking of the motor running state.
Description
Technical field
The utility model relates to a kind of motor speed measuring device, and the motor speed that specifically is used for washing machine detects.
Technical background
In the washing machine use, because a lot of washing machine does not have motor detection apparatus, can not in time motor operating state or ERST in time be fed back, the control system of washing machine also can't rationally be controlled the washing machine operation according to motor operating state.
The utility model content
To above-mentioned technical matters, the utility model proposes the proving installation of the timely Feedback for Washing motor operating state of a kind of ability, and concrete technical scheme is:
Motor speed measuring device comprises grating dish and sensor, and the grating dish is installed on the motor shaft; Described sensor comprises photoemission and receptacle; Be installed in respectively near the grating two sides of grating dish, sensor is connected with power supply, and the receiver of sensor is connected with the control system of washing machine.
The grating dish is followed motor and is rotated, thereby the gap intercepts the acceptance of light, makes the pulse signal of sensor output certain frequency, can accurately calculate rotating speed of motor through the frequency that detects this pulse signal.
When motor speed feeds back to the washing machine control system through receiver, the weight that control system can be washed according to the judgement of motor speed realizes precisely fuzzy weighing; Realize system balancing control through speed monitoring simultaneously; In dehydration, realize taking off the drying-stopping function through velocity ratio.
The device of the utility model can be applicable to not have the common electric machine of speed feedback, has the characteristics of rate accuracy height, bandwidth simultaneously.This device be applied to household electrical appliance can realize to motor speed control, to the judgement of system balancing and to the real-time follow-up of motor operating state.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
The embodiment of accompanying drawings the utility model, as shown in Figure 1, motor speed measuring device; Comprise grating dish 1 and sensor 2; Grating dish 1 is installed on 3 in the motor, and described sensor 2 comprises photoemission and receptacle, is installed in respectively near the grating two sides of grating dish 1; Sensor 2 is connected with power supply, and the receiver of sensor 2 is connected with the control system of washing machine 4.
When motor 3 rotated, grating dish 1 rotated synchronously, and sensor 2 is made up of one group of photoemission cell and photoelectricity receiver pope, and inside has waveform processing circuit, to guarantee the accuracy of pulse.Lattice equal distribution on the grating dish 1 is constantly isolated the acceptance of light in the running, produce the pulse signal of certain frequency.Washing machine control system 4 receives this pulse signal to judge the rotating speed of motor 3.Rotating speed through feedback can carry out speed control to motor 3; Also can judge simultaneously the suffered resistance of balance and system of machine system through change in rotational speed; Can also carry out real-time follow-up to the running status of motor through speed feedback, break down or move the undesired alarm and protection that carries out like motor.
As shown in Figure 1, described grating dish 1, upper surface are the plane ring-type, and there is the hole that is installed on the motor shaft centre, and the circle sidewall vertical with upper surface arranged around the grating dish lower surface, and sidewall has the grating of equidistance.
The grating dish also can be the circular flat shape, and there is the hole that is installed on the motor shaft centre, on every side the annulus grating of emitting shape that is equally spaced.
Claims (2)
1. motor speed measuring device; It is characterized in that comprise grating dish and sensor, the grating dish is installed on the motor shaft; Described sensor comprises photoemission and receptacle; Be installed in respectively near the two sides of grating dish grating, sensor is connected with power supply, and the receiver of sensor is connected with the control system of washing machine.
2. motor speed measuring device according to claim 1 is characterized in that, described grating dish; Upper surface is the plane ring-type; There is the hole that is installed on the motor shaft centre, and the circle sidewall vertical with upper surface arranged around the grating dish lower surface, and sidewall has the grating of equidistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213842 CN202631563U (en) | 2012-05-14 | 2012-05-14 | Motor speed detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213842 CN202631563U (en) | 2012-05-14 | 2012-05-14 | Motor speed detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631563U true CN202631563U (en) | 2012-12-26 |
Family
ID=47384754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220213842 Expired - Fee Related CN202631563U (en) | 2012-05-14 | 2012-05-14 | Motor speed detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631563U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278658A (en) * | 2013-06-04 | 2013-09-04 | 南京化工职业技术学院 | High-power motor rotation speed detection device |
| CN103293000A (en) * | 2013-05-24 | 2013-09-11 | 东营市胜软石油技术开发有限公司 | Multi-motor detection device of elevating system of self-elevating drilling platform and application method |
| CN103808954A (en) * | 2014-01-27 | 2014-05-21 | 洛阳理工学院 | Speed measuring device |
| CN105181991A (en) * | 2015-09-30 | 2015-12-23 | 成都川睿科技有限公司 | Engine speed measurement system |
| CN105954535A (en) * | 2016-07-12 | 2016-09-21 | 江苏省无锡探矿机械总厂有限公司 | Sensor speed measuring device used for drilling machine protrusion frame |
| CN109048731A (en) * | 2018-08-08 | 2018-12-21 | 中山市鑫光智能系统有限公司 | For assembling the assembling equipment and packaging technology of electric-torch burner |
| CN110647058A (en) * | 2019-10-25 | 2020-01-03 | 珠海优特智厨科技有限公司 | Cooking control method and device, cooking equipment and storage medium |
| CN110703654A (en) * | 2019-10-25 | 2020-01-17 | 珠海优特智厨科技有限公司 | Cooking control method and device, cooking equipment and storage medium |
-
2012
- 2012-05-14 CN CN 201220213842 patent/CN202631563U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293000A (en) * | 2013-05-24 | 2013-09-11 | 东营市胜软石油技术开发有限公司 | Multi-motor detection device of elevating system of self-elevating drilling platform and application method |
| CN103293000B (en) * | 2013-05-24 | 2016-01-20 | 东营市胜软石油技术开发有限公司 | The application process of lifting system of self-lifting well drilling platform multi-motor pick-up unit |
| CN103278658A (en) * | 2013-06-04 | 2013-09-04 | 南京化工职业技术学院 | High-power motor rotation speed detection device |
| CN103808954A (en) * | 2014-01-27 | 2014-05-21 | 洛阳理工学院 | Speed measuring device |
| CN105181991A (en) * | 2015-09-30 | 2015-12-23 | 成都川睿科技有限公司 | Engine speed measurement system |
| CN105954535A (en) * | 2016-07-12 | 2016-09-21 | 江苏省无锡探矿机械总厂有限公司 | Sensor speed measuring device used for drilling machine protrusion frame |
| CN109048731A (en) * | 2018-08-08 | 2018-12-21 | 中山市鑫光智能系统有限公司 | For assembling the assembling equipment and packaging technology of electric-torch burner |
| CN110647058A (en) * | 2019-10-25 | 2020-01-03 | 珠海优特智厨科技有限公司 | Cooking control method and device, cooking equipment and storage medium |
| CN110703654A (en) * | 2019-10-25 | 2020-01-17 | 珠海优特智厨科技有限公司 | Cooking control method and device, cooking equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20180514 |