CN109936314A - A kind of electronic chassis system of breaker and electric car - Google Patents
A kind of electronic chassis system of breaker and electric car Download PDFInfo
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- CN109936314A CN109936314A CN201910216097.2A CN201910216097A CN109936314A CN 109936314 A CN109936314 A CN 109936314A CN 201910216097 A CN201910216097 A CN 201910216097A CN 109936314 A CN109936314 A CN 109936314A
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- 101710179734 6,7-dimethyl-8-ribityllumazine synthase 2 Proteins 0.000 claims description 6
- 101710186609 Lipoyl synthase 2 Proteins 0.000 claims description 6
- 101710122908 Lipoyl synthase 2, chloroplastic Proteins 0.000 claims description 6
- 101710101072 Lipoyl synthase 2, mitochondrial Proteins 0.000 claims description 6
- 101710179738 6,7-dimethyl-8-ribityllumazine synthase 1 Proteins 0.000 claims description 3
- 101710186608 Lipoyl synthase 1 Proteins 0.000 claims description 3
- 101710137584 Lipoyl synthase 1, chloroplastic Proteins 0.000 claims description 3
- 101710090391 Lipoyl synthase 1, mitochondrial Proteins 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
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- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of electronic chassis system of breaker and electric car, system includes: circuit for controlling motor and brush DC driver；Brush DC driver includes first terminal V+, Second terminal Ve, third terminal V-, motor operating terminal EN and motor steering terminal DR；Circuit for controlling motor includes the first button T1, the second button T2, position switch S1, the first limit switch LS1 and the second limit switch LS2；First terminal V+, Second terminal Ve and third terminal V- are connect with slide rheostat R1 respectively；The first end of first button T1 and the second button T2 are connect with motor operating terminal EN respectively；The second end of first button T1 is connect with the first end of position switch S1；The second end of second button T2 is connect with the second end of position switch S1；The third end of position switch S1 is connect with the first end of the first limit switch LS1；The second end of first limit switch LS1 is connect with the first end of the second limit switch LS2；The second end of second limit switch LS2 is connect with motor steering terminal DR.Improve breaker safety in operation and reliability.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a circuit breaker electric chassis vehicle system and an electric vehicle.
Background
At present, most of motors used by electric chassis of the vacuum circuit breaker are direct current brush motors. The direct current brush motor is easy to drive and control, but needs a carbon brush and a phase change sheet in structure, is worn after long-term use, needs regular maintenance and is heavy in maintenance work; because the direct current brush motor has large starting current in the starting process, strong electromagnetic interference can be caused; in high-speed rotation, electric sparks are generated in the reversing process of the carbon brush, potential safety hazards are generated on the whole circuit breaker, the carbon brush is easy to break, and the maintenance cost is high; in addition, strong electromagnetic fields are generated by electric sparks during commutation, and interference is caused on control and communication of a secondary loop. The direct current brush motor has a mechanical commutator, so that the rotation speed of the direct current brush motor is limited. Therefore, in the circuit breaker, the application of the dc brush motor not only needs to pay attention to the application situation, but also brings about complicated maintenance work.
Disclosure of Invention
The invention provides a circuit breaker electric chassis vehicle system and an electric vehicle, which can eliminate the interference of a phase change device on a secondary circuit of a circuit breaker, improve the operation safety and reliability of the circuit breaker, and have the advantages of simple structure and low manufacturing cost.
The embodiment of the invention provides a circuit breaker electric chassis vehicle system, which comprises: a motor control circuit, a DC brushless driver; the direct current brushless driver comprises a first terminal V +, a second terminal Ve, a third terminal V-, a motor running terminal EN and a motor steering terminal DR, and the motor control circuit comprises a first button T1, a second button T2, a position switch S1, a first limit switch LS1 and a second limit switch LS 2; wherein,
the first terminal V + is connected to a first end of the sliding varistor R1; the second end of the sliding varistor R1 is connected to the second terminal Ve, and the third end of the sliding varistor R1 is connected to the third terminal V-; a first end of the first button T1 is connected with a motor running terminal EN; a second end of the first button T1 is connected with a first end of a position switch S1; a first end of the second button T2 is connected with a motor running terminal EN; a second terminal of the second button T2 is connected with a second terminal of the position switch S1; the third terminal of the position switch S1 is connected with the first terminal of the first limit switch LS 1; a second terminal of the first limit switch LS1 is connected with a first terminal of the second limit switch LS 2; a second end of the second limit switch LS2 is connected to the motor steering terminal DR.
Preferably, the DC brushless driver is ZM-6405E.
Preferably, the first button T1 is a shake-out button; the second button T2 is a shake-in button; the first limit switch LS1 is a closing locking switch, and the second limit switch LS2 is a ground knife locking switch.
Preferably, the brushless direct current driver further comprises a motor body, wherein the motor body comprises a Hall position sensor, and the Hall position sensor is used for acquiring a position signal of a motor rotor and sending the position signal to the brushless direct current driver.
Preferably, the dc brushless driver further comprises a controller and an inverter; and the controller generates pwm waveform for controlling the inverter according to the position signal of the motor rotor acquired by the Hall sensor so as to control the on-off of the inverter.
Preferably, the motor further comprises a direct current power supply, and the direct current power supply is used for supplying power to the motor body through the motor phase line.
The embodiment of the invention also provides an electric automobile which comprises the circuit breaker electric chassis vehicle system.
The embodiment of the invention has the following beneficial effects:
1. the brushless direct current motor has the advantages that no mechanical commutation device exists, the on-off of armature current and the rotation direction of an armature magnetic field are controlled through the switch of a power element, the output torque is adjusted by changing the input voltage or the duty ratio of an input inverter, the interference of the commutation device on a secondary circuit of the circuit breaker is eliminated, and the operation safety and the reliability of the circuit breaker are improved.
2. Simple structure and low cost.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker electric chassis system according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a motor control circuit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment of the present invention:
referring to fig. 1 and fig. 2, which are schematic structural diagrams of a circuit breaker electric chassis system according to an embodiment of the present invention, fig. 2 is a schematic circuit diagram of a motor control circuit according to an embodiment of the present invention, including:
a motor control circuit 2 and a direct current brushless driver 1; the brushless DC driver 1 comprises a first terminal V +, a second terminal Ve, a third terminal V-, a motor running terminal EN and a motor steering terminal DR, and the motor control circuit comprises a first button T1, a second button T2, a position switch S1, a first limit switch LS1 and a second limit switch LS 2; wherein,
the first terminal V + is connected to a first end of the sliding varistor R1; the second end of the sliding varistor R1 is connected to the second terminal Ve, and the third end of the sliding varistor R1 is connected to the third terminal V-; a first end of the first button T1 is connected with a motor running terminal EN; a second end of the first button T1 is connected with a first end of a position switch S1; a first end of the second button T2 is connected with a motor running terminal EN; a second terminal of the second button T2 is connected with a second terminal of the position switch S1; the third terminal of the position switch S1 is connected with the first terminal of the first limit switch LS 1; a second terminal of the first limit switch LS1 is connected with a first terminal of the second limit switch LS 2; a second end of the second limit switch LS2 is connected to the motor steering terminal DR.
In this embodiment, the dc brushless driver is ZM-6405E, but it should be noted that, in other embodiments, the type of the dc brushless driver is defined according to actual situations, and the invention is not limited in detail herein.
In this embodiment, the dc brushless driver 1 further includes a controller and an inverter; and the controller generates pwm waveform for controlling the inverter according to the position signal of the motor rotor acquired by the Hall sensor so as to control the on-off of the inverter. The inverter is a three-phase bridge inverter, and the three-phase armature winding is energized according to a certain rule by controlling the on/off of the MOS transistor on the bridge arm to drive the motor rotor to rotate.
In this embodiment, the circuit breaker electric chassis vehicle system further includes a motor body 4, the motor body 4 includes a hall position sensor, the hall position sensor is used for collecting a position signal of a motor rotor, and sends the position signal to the dc brushless driver 1.
In this embodiment, the electric chassis vehicle system with the circuit breaker further comprises a direct current power supply 3, wherein the direct current power supply 3 is used for supplying power to the motor body 4 through the motor phase line.
The direct current power supply DC1 supplies power to the whole system, the direct current becomes a three-phase power supply for the brushless direct current motor through the inverter, and the three-phase power supply is supplied to the motor body 4 through a motor phase line terminal; the motor body M is provided with a Hall position sensor and is used for transmitting a position signal to the driver, the brushless direct current driver 1 is used for controlling the on-off of the inverter, and the Hall power supply supplies power to the Hall position sensor in the motor. Specifically, a first end of the motor body 4 is connected with a W terminal of a motor phase line; the second end of the motor body 4 is connected with a V terminal of a phase line of the motor; the third end of the motor body 4 is connected with a U terminal of a phase line of the motor; the fourth end of the motor body 4 and the H of the Hall signalWConnecting; the fifth end of the motor body 4 and the H of the Hall signalVConnecting; the sixth end of the motor body 4 and the H of the Hall signalUConnecting; the seventh end of the motor body 4 and the H of the Hall power supply+Connecting; the electricityThe seventh end of the machine body 4 and the H of the Hall power supply-And (4) connecting.
In this embodiment, the first button T1 is a shake-out button; the second button T2 is a shake-in button; the first limit switch LS1 is a closing locking switch, and the second limit switch LS2 is a ground knife locking switch. In particular, the first terminal V + and the third terminal V-are connected as a control circuit power supply. The third terminal Ve and the sliding resistor R1 form a voltage regulator. When the motor running terminal EN is connected, the motor starts to rotate, and the rotating direction is determined by the motor steering terminal DR. When the motor steering terminal DR is switched on, the motor rotates forwards, and the chassis vehicle is rocked to a working position; when the motor steering terminal DR is disconnected, the motor rotates reversely, and the circuit breaker runs to the test position from the working position. When the chassis is at the test position and the circuit breaker is at the closing and opening ground switch, the first limit switch LS1 is at position 1, and the first limit switch LS1 and the second limit switch LS2 are in the closed state. When the second button T2 is pressed, the second button T2 and the second button T2' are simultaneously switched on, the motor rotates forwards, and the chassis vehicle is switched from the rolling-in position to the working position. When the operating position is reached, the position switch S1 is changed from position 1 to position 2 in preparation for chassis shake out. When the circuit breaker is in a working position and is switched off, and the grounding knife is not switched on, the first button T1 is pressed, the motor operation terminal EN is switched on, the motor steering terminal DR is switched off, the motor rotates reversely, the chassis vehicle is driven to run to a test position from the working position, and the shaking-out action is completed. When the circuit breaker is in a closed state or a ground switch closed state, the first limit switch LS1 or the second limit switch LS2 is in an open state, and the EN cannot be conducted, that is, the motor does not rotate. Therefore, the faults caused by arc discharge or electrified grounding knife switching caused by the operation of the chassis vehicle in the switching-on state are avoided. The brushless direct current motor is applied to a control circuit of a circuit breaker electric chassis vehicle. The chassis vehicle can be controlled to shake in and out, and meanwhile, the chassis vehicle has closing locking and grounding knife locking, and the requirements of a circuit breaker on a power system of the chassis vehicle are met.
In summary, the brushless DC motor has the advantages of no mechanical commutation device, the switch of the power element is used for controlling the on-off of the armature current and the rotation direction of the armature magnetic field, and the input voltage or the duty ratio of the input inverter is changed for adjusting the output torque, so that the interference of the commutation device on the secondary circuit of the circuit breaker is eliminated, the operation safety and reliability of the circuit breaker are improved, the structure is simple, and the manufacturing cost is low.
The embodiment of the invention also provides an electric automobile which comprises the circuit breaker electric chassis vehicle system.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. A circuit breaker electric chassis system, comprising: a motor control circuit, a DC brushless driver; the direct current brushless driver comprises a first terminal V +, a second terminal Ve, a third terminal V-, a motor running terminal EN and a motor steering terminal DR, and the motor control circuit comprises a first button T1, a second button T2, a position switch S1, a first limit switch LS1 and a second limit switch LS 2; wherein,
the first terminal V + is connected to a first end of the sliding varistor R1; the second end of the sliding varistor R1 is connected to the second terminal Ve, and the third end of the sliding varistor R1 is connected to the third terminal V-; a first end of the first button T1 is connected with a motor running terminal EN; a second end of the first button T1 is connected with a first end of a position switch S1; a first end of the second button T2 is connected with a motor running terminal EN; a second terminal of the second button T2 is connected with a second terminal of the position switch S1; the third terminal of the position switch S1 is connected with the first terminal of the first limit switch LS 1; a second terminal of the first limit switch LS1 is connected with a first terminal of the second limit switch LS 2; a second end of the second limit switch LS2 is connected to the motor steering terminal DR.
2. The circuit breaker electric chassis system of claim 1, wherein the dc brushless drive is ZM-6405E.
3. The circuit breaker electric chassis system of claim 1, wherein the first button T1 is a swing-out button; the second button T2 is a shake-in button; the first limit switch LS1 is a closing locking switch, and the second limit switch LS2 is a ground knife locking switch.
4. The circuit breaker electric chassis system of claim 1, further comprising a motor body including a hall position sensor for collecting a position signal of a motor rotor and sending the position signal to the dc brushless driver.
5. The circuit breaker electric chassis system of claim 1, wherein the dc brushless drive further comprises a controller and an inverter; and the controller generates pwm waveform for controlling the inverter according to the position signal of the motor rotor acquired by the Hall sensor so as to control the on-off of the inverter.
6. The circuit breaker electric chassis system of claim 1, further comprising a dc power source for powering the motor body through the motor phase line.
7. An electric vehicle comprising a circuit breaker electric chassis system according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216097.2A CN109936314A (en) | 2019-03-21 | 2019-03-21 | A kind of electronic chassis system of breaker and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216097.2A CN109936314A (en) | 2019-03-21 | 2019-03-21 | A kind of electronic chassis system of breaker and electric car |
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| Publication Number | Publication Date |
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| CN109936314A true CN109936314A (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910216097.2A Pending CN109936314A (en) | 2019-03-21 | 2019-03-21 | A kind of electronic chassis system of breaker and electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114221302A (en) * | 2021-12-08 | 2022-03-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic operation system and method for power distribution cabinet |
Citations (5)
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|---|---|---|---|---|
| CN201945889U (en) * | 2011-03-23 | 2011-08-24 | 上海芜津消防设备有限公司 | Mobile electric control dual-purpose system for fire water monitor |
| CN202488286U (en) * | 2012-03-16 | 2012-10-10 | 西安建筑科技大学 | DC outgoing line protector of DC brushless motor |
| JP2016086607A (en) * | 2014-10-29 | 2016-05-19 | 瑞展動能股▲ふん▼有限公司 | Rotation speed control system for brushless dc motor |
| CN106899080A (en) * | 2015-12-21 | 2017-06-27 | 常州帕斯菲克自动化技术股份有限公司 | Electric chassis truck and ground knife intelligent controlling device and its control method |
| CN209844866U (en) * | 2019-03-21 | 2019-12-24 | 厦门理工学院 | Circuit breaker electric chassis vehicle system and electric automobile |
-
2019
- 2019-03-21 CN CN201910216097.2A patent/CN109936314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201945889U (en) * | 2011-03-23 | 2011-08-24 | 上海芜津消防设备有限公司 | Mobile electric control dual-purpose system for fire water monitor |
| CN202488286U (en) * | 2012-03-16 | 2012-10-10 | 西安建筑科技大学 | DC outgoing line protector of DC brushless motor |
| JP2016086607A (en) * | 2014-10-29 | 2016-05-19 | 瑞展動能股▲ふん▼有限公司 | Rotation speed control system for brushless dc motor |
| CN106899080A (en) * | 2015-12-21 | 2017-06-27 | 常州帕斯菲克自动化技术股份有限公司 | Electric chassis truck and ground knife intelligent controlling device and its control method |
| CN209844866U (en) * | 2019-03-21 | 2019-12-24 | 厦门理工学院 | Circuit breaker electric chassis vehicle system and electric automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114221302A (en) * | 2021-12-08 | 2022-03-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic operation system and method for power distribution cabinet |
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Application publication date: 20190625 |
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