CN201918962U - Motor drive circuit with charging function - Google Patents
Motor drive circuit with charging function Download PDFInfo
- Publication number
- CN201918962U CN201918962U CN2010206587948U CN201020658794U CN201918962U CN 201918962 U CN201918962 U CN 201918962U CN 2010206587948 U CN2010206587948 U CN 2010206587948U CN 201020658794 U CN201020658794 U CN 201020658794U CN 201918962 U CN201918962 U CN 201918962U
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- motor
- drive circuit
- contacts
- bridge type
- throw switch
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Abstract
The utility model relates to a motor drive circuit with a charging function, which comprises a bridge type converter and a PWM (Pulse Width Modulation) controller thereof, the bridge type converter is provided with direct-current ends which can be connected with a storage battery, the alternating-current ends of the bridge type converter are connected with one group of common contacts of a three-phase single-pole double-throw switch, one of the other two groups of contacts of the single-pole double-throw switch can be connected with the drive winding of a motor, and two contacts in the other of the two groups of contacts can be connected with a double-phase power supply. When the bridge type converter of the drive circuit supplies power to the motor, the drive circuit operates in an inversion state, and supplies alternating-current power to the motor; during charging, the drive circuit operates in a rectification state, and the double-phase power supply charges the storage battery. The motor drive circuit is integrated with the conventional charge circuit and the conventional discharge circuit, which share the conventional bridge type inverter, consequently, the number of power parts is reduced, the occupied size is small, the motor drive circuit is convenient to mount and adjust, and the production cost is reduced.
Description
Technical field
The utility model relates to Motor Control Field, particularly is widely used in the drive system of pure electric automobile and fuel oil, electric hybrid automobile, specifically is a kind of motor-drive circuit with charge function.
Background technology
Traditional electric automobile and fuel oil, electric hybrid automobile, the storage battery of its power source in automobile, this storage battery are sent to the electric energy of storage battery by inverter and are converted into mechanical energy in the motor, realize the conversion of energy.Inverter can be controlled by controller, such as PWM controller commonly used, by the angle of flow of the switch element in the adjustment inverter, thereby motor is controlled to satisfy the driver to requirements such as electric automobile speed, torques.Be illustrated in figure 1 as the circuit theory diagrams of storage battery to the motor power supply.Storage battery 1 be motor 4 power supplies by inverter 2, and each switching tube of inverter 2 is controlled by the PWM controller, and PWM controller motor 4 voltages of can sampling are controlled the switching tube of bridge-type inverter 2, and accepted the control of entire car controller.
When the battery stores energy consumption arrives to a certain degree, need charge to it, promptly adopting rectifier is that direct current is to charge in batteries with external industrial frequency AC electric rectification.
So the storage battery of prior motor car and hybrid vehicle all needs a cover discharge drive system and a cover charging system, two cover power part parts are many, quality big, take up room big, install and adjust inconvenience, also make automotive system too fat to move, improved production cost.
The utility model content
The purpose of this utility model provides a kind of motor-drive circuit with charge function, in order to solve existing electric automobile and hybrid vehicle adopt two overlap that power parts bring install and use inconvenience, wasting space, the problem that production cost is high.
For achieving the above object, scheme of the present utility model is: a kind of motor-drive circuit with charge function, comprise a bridge-type current transformer and PWM controller thereof, this bridge-type current transformer is provided with the dc terminal that is used to connect storage battery, the interchange end of described bridge-type current transformer connects one group of common of a three-phase single-pole double-throw switch (SPDT), other two groups of contacts of described single-pole double-throw switch (SPDT), one group of contact is used to connect the motor-driven winding, and two contacts in another group contact are used to connect two-phase power supply.
Drive circuit of the present utility model, its bridge-type current transformer is operated in inverter mode when powering for motor, improve AC power to motor; When charging, be operated in rectification state, be charge in batteries by two-phase power supply; When motor operated in brake module or power generation mode, circuit also was operated in rectification state, and it is charge in batteries that mechanical energy is converted to electric energy.Adopt circuit of the present utility model, original charging circuit and discharge circuit are integrated, adopt original bridge-type current transformer jointly, saved power part, it is also little to take volume, is convenient to install and adjust, and has reduced production cost.
Further, described single-pole double-throw switch (SPDT) is used to connect on two contacts of two-phase power supply and is equipped with cradle.
Description of drawings
Fig. 1 is the circuit theory diagrams of the discharge portion of prior art;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
A kind of motor in electric automobile drive circuit as shown in Figure 2 with charge function, comprise a three-phase bridge current transformer 2, this current transformer direct current termination storage battery 1, exchange one group of common that end connects a three-phase single-pole double-throw switch (SPDT) 3, one group of driving winding that connects motor 4 in two groups of contacts in addition of three-phase single-pole double-throw switch (SPDT) 3, in contact two of another group connect a cradle 5, cradle 5 connect two-phase power supply (A, B).As figure, when the three-phase single-pole double-throw switch (SPDT) was thrown for 3 times, two-phase power supply inserted current transformer 2, and it is storage battery 1 charging that current transformer 2 is operated in rectification state.At this moment, owing to adopt two-phase power supply, so real work has only four brachium pontis of corresponding two-way in the current transformer 2.Adopt two-phase power supply, both can adopt line voltage also can adopt phase voltage, its advantage is that in the practical application, the two-phase plug is very common, and it is very convenient to charge.The PWM controller can adopt the mode (as the CAN net) of network communication, receive the control command of entire car controller, switching tube in the electric bridge is controlled (during charging, also need battery tension is sampled), entire car controller is also controlled three-phase single-pole double-throw switch (SPDT) 3 and cradle 5, realizes four kinds of mode of operations of motor-driven vehicle, driving electric power generation, motor braking feedback and the external two-phase power supply charging of stopping.
The motor-drive circuit of electric automobile has motor-driven vehicle, driving electric power generation, motor braking feedback and four kinds of mode of operations of parking external power charging.Concrete mode of operation sees Table 1.
Table 1
The motor-driven vehicle mode, single-pole double-throw switch (SPDT) connects motor, and motor operation powered vehicle is travelled.
Driving electric power generation pattern, single-pole double-throw switch (SPDT) connects motor, and mechanical energy changes electric energy into by motor and current transformer formula inverter.
Motor braking feedback pattern, principle colleague vehicle motor power generation mode.
Parking external power charging pattern, when vehicle stopped, single-pole double-throw switch (SPDT) connected cradle, and two-phase alternating current changes direct current into by cradle and current transformer.
Claims (2)
1. motor-drive circuit with charge function, comprise a bridge-type current transformer and PWM controller thereof, this bridge-type current transformer is provided with the dc terminal that is used to connect storage battery, it is characterized in that, the interchange end of described bridge-type current transformer connects one group of common of a three-phase single-pole double-throw switch (SPDT), other two groups of contacts of described single-pole double-throw switch (SPDT), one group of contact is used to connect the motor-driven winding, and two contacts in another group contact are used to connect two-phase power supply.
2. a kind of motor-drive circuit with charge function according to claim 1 is characterized in that, being used to of described single-pole double-throw switch (SPDT) connects on two contacts of two-phase power supply and be equipped with cradle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206587948U CN201918962U (en) | 2010-12-14 | 2010-12-14 | Motor drive circuit with charging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206587948U CN201918962U (en) | 2010-12-14 | 2010-12-14 | Motor drive circuit with charging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918962U true CN201918962U (en) | 2011-08-03 |
Family
ID=44418750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206587948U Expired - Fee Related CN201918962U (en) | 2010-12-14 | 2010-12-14 | Motor drive circuit with charging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918962U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057435A (en) * | 2011-10-19 | 2013-04-24 | 北京理工大学 | Electromobile high integration density control system |
| CN105480098A (en) * | 2016-01-19 | 2016-04-13 | 重庆邮电大学 | Braking energy recovery system for electric vehicle |
| CN106183875A (en) * | 2016-08-23 | 2016-12-07 | 合肥工业大学 | A kind of electric automobile high-voltage electrical architecture system of discharge and recharge integration |
| CN108278171A (en) * | 2018-03-26 | 2018-07-13 | 山东元齐新动力科技有限公司 | Motor start-up control device based on threephase generator |
| US10381967B2 (en) | 2017-05-17 | 2019-08-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Simplified power conversion systems for vehicles |
-
2010
- 2010-12-14 CN CN2010206587948U patent/CN201918962U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057435A (en) * | 2011-10-19 | 2013-04-24 | 北京理工大学 | Electromobile high integration density control system |
| CN103057435B (en) * | 2011-10-19 | 2016-08-24 | 北京理工大学 | A kind of electromobile high integration density control system |
| CN105480098A (en) * | 2016-01-19 | 2016-04-13 | 重庆邮电大学 | Braking energy recovery system for electric vehicle |
| CN105480098B (en) * | 2016-01-19 | 2019-02-15 | 重庆邮电大学 | A kind of braking energy recovery system for electric vehicle |
| CN106183875A (en) * | 2016-08-23 | 2016-12-07 | 合肥工业大学 | A kind of electric automobile high-voltage electrical architecture system of discharge and recharge integration |
| US10381967B2 (en) | 2017-05-17 | 2019-08-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Simplified power conversion systems for vehicles |
| CN108278171A (en) * | 2018-03-26 | 2018-07-13 | 山东元齐新动力科技有限公司 | Motor start-up control device based on threephase generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20181214 |