CN202696515U - Shunt excitation direct current motor controller with large starting torque - Google Patents
Shunt excitation direct current motor controller with large starting torque Download PDFInfo
- Publication number
- CN202696515U CN202696515U CN 201220195758 CN201220195758U CN202696515U CN 202696515 U CN202696515 U CN 202696515U CN 201220195758 CN201220195758 CN 201220195758 CN 201220195758 U CN201220195758 U CN 201220195758U CN 202696515 U CN202696515 U CN 202696515U
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- contactor
- switch
- time
- resistor
- direct current
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Abstract
The utility model discloses a shunt excitation direct current motor controller with a large starting torque. The shunt excitation direct current motor controller comprises an alternation current power supply, a combined switch, an exciting winding, an armature winding, a starting switch, a stopping switch, a first resistor, a second resistor, a first contactor, a second contactor, a third contactor, a first time contactor and a second time contactor. The shunt excitation direct current motor controller is started through connection of the resistors in series in the armature winding, operates in full voltage through elimination of the serial resistances when the rotation speed of the motor reaches a certain value, and prevents the armature winding from being burned out. The shunt excitation direct current motor controller has the advantages of being large in starting torque, good in starting performance and strong in overloading capacity.
Description
Technical field
The utility model relates to a kind of controller, relates in particular to the large Shunt-excited DC Motors Based controller of a kind of detent torque.
Background technology
Shunt-excited DC Motors Based is because the resistance of armature winding is less, directly start and to produce very large impulse current, generally can reach 10～20 times of rated current, thus direct startup can not be adopted, if directly startup can cause burning out of armature winding and cause life safety.
Summary of the invention
The purpose of this utility model provides a kind of detent torque large Shunt-excited DC Motors Based controller with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises AC power, unit switch, excitation winding, armature winding, starting switch, shutdown switch, the first resistor, the second resistor, the first contactor, the second contactor, the 3rd contactor, very first time contactor and the second time contactor, on described unit switch series connection and the described AC power, the first end of described unit switch respectively with the first end of the first normal open switch of described the first contactor, the first end of the first normally closed switch of described the first contactor be connected the first end of stop button and connect, the second end of the first normal open switch of described the first contactor is connected and is connected with the first end of described armature winding after the described excitation winding, the second end of described armature winding respectively with the first end of described the second resistor be connected the first end of the 3rd contactor and be connected, the second end of the normal open switch of described the 3rd contactor respectively with the first end of the normal open switch of described the second contactor be connected the first end of the second time contactor and be connected, the second end of described the second resistor is connected with the first end of described the first resistor, the second end of the normally closed switch of described the first contactor is connected with the first end of described very first time contactor, the second end of described stop button respectively with the first end of described start button be connected the first end of the second normal open switch of the first contactor and be connected, the second end of the second normal open switch of described the first contactor is connected with the first end of described the second contactor, the second end of described start button respectively with the first end of described the first contactor be connected the first end of normally closed switch of the second time contactor and be connected, the second end of the normally closed switch of described the second time contactor connect behind described the 3rd contactor respectively with the second end of described the second contactor be connected the first end of normally closed switch of very first time contactor and be connected, the second end of the normally closed switch of described very first time contactor respectively with the second end of described the first contactor, the second end of described very first time contactor, the second end of described first resistor of the second end of described the second time contactor, the second end of the normal open switch of described the second contactor be connected the second end of unit switch and connect.
The beneficial effects of the utility model are:
The utility model starts by series resistance in armature winding, and when treating that motor speed reaches certain value, the operation of excision series resistor total head prevents burning out of armature winding; The utlity model has that circuit is simple, stable performance and Installation and Debugging advantage easily.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises AC power, unit switch QB, excitation winding WE, armature winding WA, starting switch SB1, shutdown switch SB2, the first resistor R1, the second resistor R2, the first contactor KM1, the second contactor KM2, the 3rd contactor KM3, very first time contactor KT1 and the second time contactor KT2, on unit switch QB series connection and the AC power, the first end of unit switch QB respectively with the first end of the first normal open switch KM1-1 of the first contactor, the first end of the first normally closed switch KM1-a of the first contactor is connected first end and is connected with stop button SB2, be connected with the first end of armature winding WA behind the second end series excitation winding WE of the first normal open switch KM1-1 of the first contactor, the second end of armature winding WA is connected with the first end of the second resistor R2 and the first end of the 3rd contactor KM3 respectively, the second end of the normal open switch KM3-1 of the 3rd contactor respectively with the first end of the normal open switch KM2-1 of the second contactor be connected the first end of time contactor KT2 and be connected, the second end of the second resistor R2 is connected with the first end of the first resistor R1, the second end of the normally closed switch KM1-a of the first contactor is connected with the first end of very first time contactor KT1, the second end of stop button SB2 respectively with the first end of start button SB1 be connected the first end of the second normal open switch KM2-2 of contactor and be connected, the second end of the second normal open switch KM1-2 of the first contactor is connected with the first end of the second contactor KM2, the second end of start button SB1 respectively with the first end of the first contactor KM1 be connected the first end of normally closed switch KT2-1 of time contactor and be connected, the second end of the normally closed switch KT2-1 of the second time contactor is connected behind the 3rd contactor KM3 respectively and to be connected the first end of normally closed switch KT1-1 with very first time contactor with the second end of the second contactor KM2 and to be connected, the second end of the normally closed switch KT1-1 of very first time contactor respectively with the second end of the first contactor KM1, the second end of very first time contactor KT1, the second end of the second end the first resistor R1 of the second time contactor KT2, the second end of the normal open switch KM2-1 of the second contactor is connected the second end and is connected with unit switch QB.
Claims (1)
1. Shunt-excited DC Motors Based controller that detent torque is large, it is characterized in that: comprise AC power, unit switch, excitation winding, armature winding, starting switch, shutdown switch, the first resistor, the second resistor, the first contactor, the second contactor, the 3rd contactor, very first time contactor and the second time contactor, described unit switch is series on the described AC power, the first end of described unit switch respectively with the first end of the first normal open switch of described the first contactor, the first end of the first normally closed switch of described the first contactor be connected the first end of shutdown switch and connect, the second end of the first normal open switch of described the first contactor is connected and is connected with the first end of described armature winding after the described excitation winding, the second end of described armature winding respectively with the first end of described the second resistor be connected the first end of the 3rd contactor and be connected, the second end of the normal open switch of described the 3rd contactor respectively with the first end of the normal open switch of described the second contactor be connected the first end of the second time contactor and be connected, the second end of described the second resistor is connected with the first end of described the first resistor, the second end of the normally closed switch of described the first contactor is connected with the first end of described very first time contactor, the second end of described shutdown switch respectively with the first end of described starting switch be connected the first end of the second normal open switch of the first contactor and be connected, the second end of the second normal open switch of described the first contactor is connected with the first end of described the second contactor, the second end of described starting switch respectively with the first end of described the first contactor be connected the first end of normally closed switch of the second time contactor and be connected, the second end of the normally closed switch of described the second time contactor connect behind described the 3rd contactor respectively with the second end of described the second contactor be connected the first end of normally closed switch of very first time contactor and be connected, the second end of the normally closed switch of described very first time contactor respectively with the second end of described the first contactor, the second end of described very first time contactor, the second end of described first resistor of the second end of described the second time contactor, the second end of the normal open switch of described the second contactor be connected the second end of unit switch and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195758 CN202696515U (en) | 2012-05-04 | 2012-05-04 | Shunt excitation direct current motor controller with large starting torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195758 CN202696515U (en) | 2012-05-04 | 2012-05-04 | Shunt excitation direct current motor controller with large starting torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696515U true CN202696515U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220195758 Expired - Fee Related CN202696515U (en) | 2012-05-04 | 2012-05-04 | Shunt excitation direct current motor controller with large starting torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300841A (en) * | 2014-11-07 | 2015-01-21 | 成都美益达医疗科技有限公司 | Motor starting circuit of medical centrifugal machine |
-
2012
- 2012-05-04 CN CN 201220195758 patent/CN202696515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300841A (en) * | 2014-11-07 | 2015-01-21 | 成都美益达医疗科技有限公司 | Motor starting circuit of medical centrifugal machine |
| CN104300841B (en) * | 2014-11-07 | 2016-08-17 | 成都美益达医疗科技有限公司 | A kind of motor start circuit of medical centrifuge |
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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: 20130123 Termination date: 20130504 |