CN2929736Y - Abnormal warning device for motor - Google Patents
Abnormal warning device for motor Download PDFInfo
- Publication number
- CN2929736Y CN2929736Y CN 200620105764 CN200620105764U CN2929736Y CN 2929736 Y CN2929736 Y CN 2929736Y CN 200620105764 CN200620105764 CN 200620105764 CN 200620105764 U CN200620105764 U CN 200620105764U CN 2929736 Y CN2929736 Y CN 2929736Y
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- triode
- motor
- alarm device
- stator
- rotor
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Abstract
Disclosed is a warning device for motor anomaly, wherein the motor comprises a rotor with a brush, a first stator formed by the left and right winding, a second stator, and the first stator, the rotor and the second stator are cascaded. The warning device for motor anomaly consists of a warning device and warning circuits, and the warning circuit comprises a dynatron V1 and a dynatron V2, wherein the base electrode of the dynatron V1 is connected with the collector of the dynatron V2, a resistor R4 is located between the base electrode and the collector of the dynatron V1, the collector of the dynatron V1 is connected with one end of the rotor by a resistor R2, the emitting electrode of the dynatron V2 is connected with one end of the warning device and the other end of the warning device is put to earth. The emitting electrode of the dynatron is contacted with the earth, the base electrode of the dynatron V2 is connected with the other end of the rotor by a diode D2 and a resistor R3, and a capacitance C1 is positioned between the base electrode and the emitting electrode of the dynatron V2. The utility model provides a warning device for motor anomaly, aiming to prompt the faults of the motor and make convenience for maintaining.
Description
(1) technical field
The utility model relates to a kind of motor abnormality alarm device.
(2) background technology
Existing series excited machine is applied to the electric equipment products of various different field, such as fields such as electric tools.Series excited machine comprises the rotor that has brush, two stators that left and right sides winding forms.
The fault that series excited machine occurs easily has: brush wear, rotor are opened a way or the stator damage is opened circuit etc.Motor in the existing electric equipment products does not have the fault prompting function, the maintenance trouble.
(3) summary of the invention
There is not the fault prompting function in order to overcome existing electrical equipment with motor, the deficiency of maintenance trouble, the utility model provides a kind of can in time remind the motor abnormality alarm device that electrical fault, convenient for maintaining take place.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of motor abnormality alarm device, this motor comprises the rotor that has brush, first stator that left and right sides stator winding forms, second stator, described first stator, rotor, the series connection of second stator, described motor abnormality alarm device comprises alarm device, warning circuit, described warning circuit comprises triode V1, triode V2, wherein, the base stage of triode V1 connects the collector of triode V2, be provided with resistance R 4 between the base stage of triode V1 and the collector, the collector of triode V1 connects an end of the rotor of motor by resistance R 2, the emitter of triode V1 connects an end of alarm device, the other end ground connection of alarm device; The grounded emitter of triode V2, the base stage of triode V2 is provided with capacitor C 1 by the other end of the rotor of diode D2, resistance R 3 connection motors between the emitter of the base stage of triode V2 and triode V2.
Further again, described motor two ends parallel connection power supply indicating circuit, described power indicating circuit comprises current-limiting resistance, power light.
Further, described motor connects power supply by switch.
Described alarm device is alarm indicator or alarm generator.Described power light is a green light, and described alarm indicator is a red light.
Technical conceive of the present utility model is: when electrical equipment (such as electric tool) attaching plug is connected electric network source, electric current is bright through the green light that the step-down of R1 current limliting drives D1, thereby realized a whether normal mark of power supply, the green light of pilot lamp D1 is bright, illustrates that then power supply and power plug wire are normal; The green light of pilot lamp D1 does not work, and illustrates that then power supply and power plug wire are unusual.
After connecting motor switch, added one group of AC current-voltage between SP2 and SP4, when rotor or brush just often, SP3 is in noble potential, make the V2 conducting by R3, D2, C1 step-down, rectification, filtering, and the V1 that arrives ends, so the red light of D1 does not work, green light is bright, and machine runs well; When motor stator opens circuit, rotor open circuit or brush wear and cause when bad, SP3 is in electronegative potential, by R3, D2, C1 step-down, rectification, filtering, be not enough to make the V2 conducting, so the V1 conducting brightens the red light of D1, thereby realized the indication that brush wear, rotor are opened a way.
The beneficial effects of the utility model mainly show: can point out brush wear, stator to open circuit or electrical fault such as rotor open circuit, convenient for maintaining.
(4) description of drawings
Fig. 1 is the wiring diagram of motor abnormality alarm device.
Fig. 2 is the circuit diagram of warning circuit.
Fig. 3 is the elementary diagram of motor abnormality alarm device.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of motor abnormality alarm device, this motor comprises the rotor that has brush, first stator that left and right sides stator winding forms, second stator, described first stator, rotor, the series connection of second stator, described motor abnormality alarm device comprises alarm device, warning circuit, described warning circuit comprises triode V1, triode V2, wherein, the base stage of triode V1 connects the collector of triode V2, be provided with resistance R 4 between the base stage of triode V1 and the collector, the collector of triode V1 is by an end of resistance R 2 connection motors, and the emitter of triode V1 connects an end of alarm device, the other end ground connection of alarm device; The grounded emitter of triode V2, the base stage of triode V2 is provided with capacitor C 1 by the other end of diode D2, resistance R 3 connection motors between the emitter of the base stage of triode V2 and triode V2.
Described motor two ends parallel connection power supply indicating circuit, described power indicating circuit comprises current-limiting resistance R1, power light.
In the present embodiment, R1=R2=R4=100k Ω, R3=30K Ω, diode D2 model is 1N4007, and capacitor C 1 is 2.2 μ F, and triode V1, V2 are 9031 types, and wherein red light and green light are for adopting bi-colour light, and model is that Φ 5 is red green cloudy altogether.
The course of work of present embodiment is: when electrical equipment (such as electric tool) attaching plug is connected electric network source, electric current is bright through the green light that the step-down of R1 current limliting drives D1, thereby realized a whether normal mark of power supply, the green light of pilot lamp D1 is bright, illustrates that then power supply and power plug wire are normal; The green light of pilot lamp D1 does not work, and illustrates that then power supply and power plug wire are unusual.
After connecting motor switch K, added one group of AC current-voltage between SP2 and SP4, when rotor or brush just often, SP3 is in noble potential (voltage of second stator), make the V2 conducting by R3, D2, C1 step-down, rectification, filtering, and the V1 that arrives ends, so the red light of D1 does not work, green light is bright, and machine runs well; When rotor open circuit or brush wear and cause when bad, rotor opens circuit, the direct ground connection of second stator, SP3 is in electronegative potential, by R3, D2, C1 step-down, rectification, filtering, be not enough to make the V2 conducting, so the V1 conducting, the red light of D1 is brightened, thereby realized the indication of brush wear or rotor open circuit.
Claims (5)
1, a kind of motor abnormality alarm device, this motor comprises the rotor that has brush, first stator that left and right sides stator winding forms, second stator, described first stator, rotor, the series connection of second stator, it is characterized in that: described motor abnormality alarm device comprises alarm device, warning circuit, described warning circuit comprises triode V1, triode V2, wherein, the base stage of triode V1 connects the collector of triode V2, be provided with resistance R 4 between the base stage of triode V1 and the collector, the collector of triode V1 connects an end of the rotor of motor by resistance R 2, the emitter of triode V1 connects an end of alarm device, the other end ground connection of alarm device; The grounded emitter of triode V2, the base stage of triode V2 is provided with capacitor C 1 by the other end of the rotor of diode D2, resistance R 3 connection motors between the emitter of the base stage of triode V2 and triode V2.
2, motor abnormality alarm device as claimed in claim 1 is characterized in that: described motor two ends parallel connection power supply indicating circuit, described power indicating circuit comprises current-limiting resistance, power light.
3, motor abnormality alarm device as claimed in claim 1 or 2, it is characterized in that: described motor connects power supply by switch.
4, motor abnormality alarm device as claimed in claim 3 is characterized in that: described alarm device is alarm indicator or alarm generator.
5, motor abnormality alarm device as claimed in claim 4 is characterized in that: described power light is a green light, and described alarm indicator is a red light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105764 CN2929736Y (en) | 2006-07-18 | 2006-07-18 | Abnormal warning device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105764 CN2929736Y (en) | 2006-07-18 | 2006-07-18 | Abnormal warning device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929736Y true CN2929736Y (en) | 2007-08-01 |
Family
ID=38308118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620105764 Expired - Fee Related CN2929736Y (en) | 2006-07-18 | 2006-07-18 | Abnormal warning device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929736Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290662A (en) * | 2016-04-11 | 2017-10-24 | 通用电气公司 | Electrically powered machine fault monitoring system, computer program product and correlation technique |
-
2006
- 2006-07-18 CN CN 200620105764 patent/CN2929736Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290662A (en) * | 2016-04-11 | 2017-10-24 | 通用电气公司 | Electrically powered machine fault monitoring system, computer program product and correlation technique |
| CN107290662B (en) * | 2016-04-11 | 2021-05-11 | 通用电气公司 | Electric machine fault monitoring system, computer program product and related method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20120718 |