CN102723817A - Shaded pole motor protection system - Google Patents
Shaded pole motor protection system Download PDFInfo
- Publication number
- CN102723817A CN102723817A CN2012101994744A CN201210199474A CN102723817A CN 102723817 A CN102723817 A CN 102723817A CN 2012101994744 A CN2012101994744 A CN 2012101994744A CN 201210199474 A CN201210199474 A CN 201210199474A CN 102723817 A CN102723817 A CN 102723817A
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- China
- Prior art keywords
- motor
- protection system
- shaded pole
- pcb
- pole motor
- 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.)
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Abstract
The invention discloses a shaded pole motor protection system which comprises a motor rotary shaft, a shaded pole motor, a multilevel magnetic ring, two groups of hall sensors and a PCB (printed circuit board). The multilevel magnetic ring is mounted at the end of the motor rotary shaft, the hall sensors are fixed onto the PCB, and the detection face of each hall sensor is away from the surface of the multilevel magnetic ring by 2-4cm. The shaded pole motor protection system has the advantages that rotation speed of the shaded pole motor is monitored and fed back to users, an alarming device can be started when the rotation speed is overhigh, the users can conveniently and timely know service conditions of the motor, faults caused by overhigh rotation speed of the motor can be avoided, and the service life of the motor is prolonged.
Description
Technical field
The present invention relates to the electric machines control technology field, particularly a kind of electric motor protecting system.
Background technology
Motor with cup rotor is simple in structure, cost is low and be widely used in a plurality of fields, and still, the motor with cup rotor product does not all have rate feedback system in the market, and motor speed is crossed conference and caused motor temperature to raise, and reduces motor useful life.
Summary of the invention
Goal of the invention: to the problems referred to above, the purpose of this invention is to provide a kind of motor with cup rotor protection system, can monitor rotating speed of motor, thus the protection of realization motor.
Technical scheme: a kind of motor with cup rotor protection system; Comprise machine shaft, motor with cup rotor; Also comprise multistage magnet ring, hall sensor and PCB; Said multistage magnet ring is installed in the termination of said machine shaft, and two groups of Hall elements are fixed on the said PCB, 2～4 centimetres of the test surface of said Hall element and the surface distances of said multistage magnet ring.
Said PCB also is connected with controller outward.
Said controller is connected with warning device.
Said controller is connected with display.
Beneficial effect: compared with prior art; Advantage of the present invention is that the rotating speed of motor with cup rotor is monitored and fed back to the user, crosses conference when rotating speed and starts warning device, makes things convenient for the user in time to understand the behaviour in service of motor; Avoid motor speed excessive and cause fault, prolong the useful life of motor.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Like accompanying drawing 1, shown in 2; A kind of motor with cup rotor protection system comprises machine shaft 1, motor with cup rotor 2, multistage magnet ring 3, hall sensor 4, PCB (a kind of printed circuit board) 5, controller 6, warning device 7, display 8, and multistage magnet ring 3 is fixedly mounted on the tail end of machine shaft 1; Two groups of Hall elements 4 are fixed on the PCB5; And let the surface of test surface and multistage magnet ring 3 of Hall element 4 at a distance of 2～4 centimetres, and preventing to rotate producing mechanical friction, controller 6 is connected with going between with PCB5; Warning device 7 is electrically connected with controller 6 respectively with display 8, and controller 6 is electrically connected with warning device 7, display 8.
When motor with cup rotor 2 runnings; Its machine shaft 1 rotates; Because multistage magnet ring 3 is installed on the machine shaft 1; So multistage magnet ring 3 is along with machine shaft 1 rotates together, the angle of its rotation and machine shaft 1 are identical, thereby can reflect the rotating speed of machine shaft 1 from multistage magnet ring 3.Multistage magnet ring 3 surface distributed have multistage magnetic field; When multistage magnet ring 3 rotates; Hall sensor 4 is alternately passed in multistage magnetic field, and hall sensor 4 is experienced magnetic field generation electric impulse signal alternately and is transferred to controller 6 through PCB5 and lead-in wire, and controller 6 is analyzed the mean value of 2 groups of Hall element data; As tachometer value, make that the data that record of rotating speed are more accurate.Through the maximum of controller 6 setting rotating speeds, when surpassing this limit value, warning device 7 startups also sound the alarm.Rotating speed and mean speed that controller 6 is connected with 8, two groups of Hall elements of display unit all can show on display 8, carry out monitoring in real time, make things convenient for user of service's recording-related information.
Claims (4)
1. motor with cup rotor protection system; Comprise machine shaft (1), motor with cup rotor (2); It is characterized in that: also comprise multistage magnet ring (3), hall sensor (4) and PCB (5); Said multistage magnet ring (3) is installed in the termination of said machine shaft (1), and two groups of Hall elements (4) are fixed on the said PCB (5), 2～4 centimetres of the surface distances of the test surface of said Hall element (4) and said multistage magnet ring (3).
2. a kind of motor with cup rotor protection system according to claim 1 is characterized in that: the outer controller (6) that also is connected with of said PCB (5).
3. a kind of motor with cup rotor protection system according to claim 1 is characterized in that: said controller (6) is connected with warning device (7).
4. a kind of motor with cup rotor protection system according to claim 1 is characterized in that: said controller (6) is connected with display (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101994744A CN102723817A (en) | 2012-06-15 | 2012-06-15 | Shaded pole motor protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101994744A CN102723817A (en) | 2012-06-15 | 2012-06-15 | Shaded pole motor protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723817A true CN102723817A (en) | 2012-10-10 |
Family
ID=46949513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101994744A Pending CN102723817A (en) | 2012-06-15 | 2012-06-15 | Shaded pole motor protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723817A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271305A (en) * | 2020-03-02 | 2020-06-12 | 江门市路思拓电机电器有限公司 | Conveniently adjust hanging stove fan of rotational speed |
| CN112450760A (en) * | 2019-09-09 | 2021-03-09 | 广东美的生活电器制造有限公司 | Motor speed measuring structure, motor, food processor and motor speed measuring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127752A (en) * | 1997-03-12 | 2000-10-03 | Robert Bosch Gmbh | Motor with RPM pickup via a hall sensor |
| CN101640514A (en) * | 2008-09-17 | 2010-02-03 | 天津市松正电动科技有限公司 | Separately excited motor controller and control method thereof |
| CN201667627U (en) * | 2010-05-19 | 2010-12-08 | 湖南科力电机股份有限公司 | Speed feedback system of motor |
| CN202268833U (en) * | 2011-10-31 | 2012-06-06 | 许昌奥仕达自动化设备有限公司 | Motor control system for flap gate |
-
2012
- 2012-06-15 CN CN2012101994744A patent/CN102723817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127752A (en) * | 1997-03-12 | 2000-10-03 | Robert Bosch Gmbh | Motor with RPM pickup via a hall sensor |
| CN101640514A (en) * | 2008-09-17 | 2010-02-03 | 天津市松正电动科技有限公司 | Separately excited motor controller and control method thereof |
| CN201667627U (en) * | 2010-05-19 | 2010-12-08 | 湖南科力电机股份有限公司 | Speed feedback system of motor |
| CN202268833U (en) * | 2011-10-31 | 2012-06-06 | 许昌奥仕达自动化设备有限公司 | Motor control system for flap gate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450760A (en) * | 2019-09-09 | 2021-03-09 | 广东美的生活电器制造有限公司 | Motor speed measuring structure, motor, food processor and motor speed measuring method |
| CN111271305A (en) * | 2020-03-02 | 2020-06-12 | 江门市路思拓电机电器有限公司 | Conveniently adjust hanging stove fan of rotational speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |