CN85205357U - Starting controller with trouble alarm - Google Patents
Starting controller with trouble alarm Download PDFInfo
- Publication number
- CN85205357U CN85205357U CN 85205357 CN85205357U CN85205357U CN 85205357 U CN85205357 U CN 85205357U CN 85205357 CN85205357 CN 85205357 CN 85205357 U CN85205357 U CN 85205357U CN 85205357 U CN85205357 U CN 85205357U
- Authority
- CN
- China
- Prior art keywords
- triode
- motor
- accident
- controller
- power supply
- 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.)
- Ceased
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- Thermally Actuated Switches (AREA)
- Stopping Of Electric Motors (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
The utility model discloses a starting controller for a small-sized motor; when the motor happens the overtemperature running accident, the motor is stopped automatically, and sound alarm is sent out; thermal parameter is converted to electrical signal by a thermoelectric conversion circuit, and an actuating relay is driven to turn on the power supply; the motor protection is realized; when accident happens, accident signal is exported from an accident signal transistor, and an accident power switch transistor is turned on; sound alarm is sent out from a piezoelectric buzzer. The utility model adopts an electricity-saving LED lamp as the running index of the motor; besides, only one control wire is connected with an alternating current contactor; the circuit is simple, the material is economized, and the utility model is in favor of remote operation.
Description
The utility model is a kind of starter controller of miniature motor, particularly when motor generation overheating operation accident, and can auto stop and send audible alarm.
The control device of existing miniature motor generally adopts trigger and protector to combine, perhaps by A.C. contactor, protector, operation circuit is discrete forms.According to the needs of production management, a people usually keeps an eye on many machines, and this just causes man-machine distance far away, if motor has an accident, often can not in time find." motor comprehensive protection trigger " literary composition that " metallurgical security " 1979 the 2nd phases deliver, the control device of electric motor of mentioning is a trigger; it is again protector; have double duty, but lack accident alarming, can not realize rapidly after accident takes place and eliminating in time.
The purpose of this utility model provides a kind of by the improved miniature motor starter controller that has accident alarming of protector.
The purpose of this utility model realizes with following method: with the PTC thermistor that is installed in motor interior is the overtemperature detecting element, by the change in resistance of detecting element.Change the circuit output end current potential, drive and carry out relay work, when accident occurs, trouble-signal triode output noble potential trouble-signal, conducting emergency power supply switch triode, after the mu balanced circuit voltage stabilizing, the voltage supply electric buzzer sends audible alarm.
Further set forth below in conjunction with the utility model embodiment and accompanying drawing.
Fig. 1 is the starter controller wiring diagram that has accident alarming that the utility model proposes.
Fig. 2 is the Motor Control wiring diagram.
Below in conjunction with accompanying drawing 1 circuit structure and principle of work are described: operation circuit mainly is made up of pocket buttons and relay 4.When pressing coaxial button 1 and button 2, relay 4 gets electric adhesive, the control power supply is pinned in its contact 5, LED light lamp 6 is luminous after resistance 7 step-downs, carry out relay 8 adhesives simultaneously, open contact 11, makes triode 9 and triode 10 conductings, keeps LED light lamp 6 and carry out relay 8 operate as normal.At this moment, the contact 22 of carrying out relay 8 is closed also by control line 23, and to A.C. contactor C power supply (as shown in Figure 2), motor starting is pressed knob 3 and got final product during shutdown.
Thermoelectric change-over circuit is made up of triode 12, diode 13 and PTC thermistor 14 etc.The following biasing resistance of triode 12 is thermistors 14, and thermistor 14 is when temperature controlling point is following.Resistance is very little, but the resistance of last biasing resistance 15 is very big, seal in diode 13 at emitter again, improved turn-on threshold voltage, therefore, triode 12 is to be in cut-off state when motor runs well, collector is noble potential, thereby 16 conductings of trouble-signal triode, the output of accident free signal, so emergency power supply switch triode 17 is closed, piezoelectric buzzer non-transformer and sounding not.
On-stream; when causing the motor over-temperature running as reasons such as overloads; thermistor 14 reaches temperature controlling point, and resistance will increase rapidly, changes the intrinsic standoff ratio with last biasing resistance 15; make triode 12 conductings; collector output is electronegative potential, and triode 9 and triode 10 end, and carries out relay 8 and discharges; outage is shut down, and reaches the protection purpose.When accident takes place, trouble-signal triode 16 ends because of the conducting of triode 12, output noble potential trouble-signal, conducting emergency power supply switch triode 17, by triode 17 collectors output emergency power supply, after 19 voltage stabilizings of stabilivolt 18 triodes, the voltage supply electric buzzer sends interrupted alarm sound, thereby has realized the warning effect after accident takes place.Piezoelectric buzzer is mainly by triode 20, and oscillatory circuit and piezoelectricity sounding component 21 are formed.
Carrying out the setting of the normally closed contact 11 of relay 8 among Fig. 1, is zero in order when accident takes place the base potential of triode 10 to be clamped down on, and purpose is to prevent thermistor 14 because of after motor shuts down, and temperature descends, resistance recovery and motor is restarted.
The utility model compared with prior art; can when having an accident, send by motor alarm sound; adopted the LED light lamp of power saving to do the motor operation indication; in addition; only be connected with A.C. contactor with a control line, simplified circuit, saved material; be of value to remote-controlled operation, have protection, warning, indicate the effect that is integrated in one.
The utility model can be made with guard shield not the controller with A.C. contactor when implementing, as operated from a distance, also can make with guard shield with the controller of A.C. contactor, as local operation.
Claims (6)
1, a kind of starter controller that is used for miniature motor is made up of operation circuit, running indication, execution relay, change-over circuit.Feature of the present utility model is that the output terminal of triode 12 in the change-over circuit occupies trouble-signal triode 16 simultaneously, and the output terminal of trouble-signal triode 16 links to each other with emergency power supply switch triode 17, powers to piezoelectric buzzer through mu balanced circuit.
2,, it is characterized in that the piezoelectric buzzer power supply of accident alarming connects the collector of emergency power supply switch triode 17 according to claim 1 described controller.
3,, it is characterized in that the base stage of emergency power supply switch triode 17 connects the output terminal of trouble-signal triode 16 according to the controller of claim 2 regulation.
4, according to the controller of claim 3 regulation, the output terminal of the triode 12 in the base stage that it is characterized in that trouble-signal triode 16 and the change-over circuit is connected.
5,, it is characterized in that carrying out a termination triode 10 base stages that prevent to restart normally closed contact 11 of relay 8, another termination common point according to the controller of claim 1 or 4 regulations.
6, according to the controller of claim 1 regulation, it is characterized in that carrying out the normally opened contact 22 of relay 8, be connected to the coil of A.C. contactor C by a power control line 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85205357 CN85205357U (en) | 1985-12-09 | 1985-12-09 | Starting controller with trouble alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85205357 CN85205357U (en) | 1985-12-09 | 1985-12-09 | Starting controller with trouble alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85205357U true CN85205357U (en) | 1987-07-08 |
Family
ID=4800450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85205357 Ceased CN85205357U (en) | 1985-12-09 | 1985-12-09 | Starting controller with trouble alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85205357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325194A (en) * | 2013-05-30 | 2013-09-25 | 成都荣耀科技有限公司 | Simple anti-theft device of transformer |
| CN108945487A (en) * | 2018-04-17 | 2018-12-07 | 中国商用飞机有限责任公司 | FADEC power supply control device for airplane and engine thereof |
-
1985
- 1985-12-09 CN CN 85205357 patent/CN85205357U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325194A (en) * | 2013-05-30 | 2013-09-25 | 成都荣耀科技有限公司 | Simple anti-theft device of transformer |
| CN108945487A (en) * | 2018-04-17 | 2018-12-07 | 中国商用飞机有限责任公司 | FADEC power supply control device for airplane and engine thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19880113 |