CN2650391Y - Electric vehicle alternating-current motor driven - Google Patents
Electric vehicle alternating-current motor driven Download PDFInfo
- Publication number
- CN2650391Y CN2650391Y CNU2003201006337U CN200320100633U CN2650391Y CN 2650391 Y CN2650391 Y CN 2650391Y CN U2003201006337 U CNU2003201006337 U CN U2003201006337U CN 200320100633 U CN200320100633 U CN 200320100633U CN 2650391 Y CN2650391 Y CN 2650391Y
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- driver
- power switch
- absorption circuit
- switch tube
- bottom plate
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Abstract
This design is the improvement of an electric vehicle AC motor driver circuit and the electrical structure. A driver base of a primary circuit is separated with a water-cooled base plate; the water-cooled base plate has a small size, so the weight of driver is reduced. The electrolytic capacitor of a primary busbar is directly linked with a power module, so as to minimize the length of the primary busbar, the induction, and the circuit voltage crest; by adopting a simplest C-type absorption circuit, the size of driver is reduced. Under the same power, the size and weight of driver for the design are minimized, thereby meeting with the requirements of electric vehicle for driver. For example, a 40/80kW AC asynchronous motor driver for electric vehicle is 420mm (L) multiplied by 300mm(W) multiplied by 190mm(H), and the weight is 17kg.
Description
Technical field:
The utility model belongs to the power set of motor vehicle, relates to the improvement of electric motor car alternating current motor driver, makes driver under equal power condition, and it is littler that volume and weight all reach.
Background technology:
AC driving progressively replacing DC driven and the constant speed that is applied to blower fan, water pump drags and the speed-adjusting driving system of electric locomotive, electric automobile (abbreviation electric motor car) among.Wherein permanent magnet synchronous motor, threephase asynchronous and switched reluctance motor are three kinds of alternating current motors that are most widely used.In electric motor car, because the restriction of locus and weight, how to make driver under the condition with constant power, both made the volume of driver and weight all reach minimum, making driver satisfy requirement to the electric motor car driveability again is one of development person's key technical problem that will solve.
Figure 4 shows that the major loop schematic diagram of a kind of typical electric motor car AC asynchronous motor driver of prior art.The positive and negative driver main loop unit 500 that enters into mutually of the storage battery in the electric motor car, after electrochemical capacitor 410 filtering, form DC bus-bar voltage 421-422, it is added on the fully controlled bridge of being made up of six high-power switch tube Q1-Q6 that have a fly-wheel diode, the base drive signal 431-436 of each switching tube controls the break-make of each switching tube, and DC bus-bar voltage is carried out copped wave.Form thus pwm voltage be added on the threephase armature winding U, V, W of alternating current motor by lead-out terminal 441-443, drive the alternating current motor running.Chiasma type RCD absorption circuit 231,232,233 is as the due to voltage spikes absorption circuit of main bus bar 421-422 and power switch pipe Q1-Q6.
The mounting structure of the major loop components and parts of electric motor car AC asynchronous motor driver shown in Figure 4 as shown in Figure 5 and Figure 6.Its main components and parts comprise water cooled bottom plate 200, power model 211,212,213, electrochemical capacitor 221,222,223,224, RCD absorption circuit 231,232,233, main bus bar pole plate 241,242, current sensor 251,252.The layout of its components and parts is as shown in Figure 5 and Figure 6: water cooled bottom plate 200 is simultaneously as the base of driver, electrochemical capacitor 221,222,223,224 lays respectively at the water cooled bottom plate both sides, power model 211,212,213 is positioned at the centre of both sides electrochemical capacitor 221,222,223,224 successively, chiasma type RCD absorption circuit 231,232,233 absorbs circuit as the spike of power model 211,212,213 respectively, and current sensor 251,252 is respectively as the current monitoring device of U, W phase.
This shows, structure more complicated by the major loop of electric motor car AC motor drive shown in Fig. 4-6, and have following shortcoming: 1. main bus bar: promptly electrochemical capacitor 221,222,223,224 is long to the main pole plate of power model 211,212,213, produces big inductance in major loop.According to Δ U=L*di/dt, under the same current condition, inductance is big more, and the due to voltage spikes that produces in circuit is also big more.2. in bus, pole plate lap-joint is many, and the contact resistance of lap-joint must make the main bus bar pole plate produce the heating phenomenon.3. due to voltage spikes is bigger in the major loop, needs the absorption circuit of more complicated, causes the increase of driver volume.4. in this structure, because water cooled bottom plate has increased the weight of driver simultaneously as the base of driver.
The utility model content:
The purpose of this utility model provides a kind of electric motor car alternating current motor driver, comprise the circuit and the mounting structure thereof that improve major loop, the base of driver is separated with water cooled bottom plate, the main bus bar pole plate directly connects, and the volume and weight of its inductance and due to voltage spikes, driver is all obviously reduced.
The utility model electric motor car alternating current motor driver, the main composition components and parts of its major loop comprise: fully controlled bridge, absorption circuit, the filter capacitor be made up of six high-power switch tubes that have a fly-wheel diode.Wherein the water cooled bottom plate of driver and base are independent separately, and the electrochemical capacitor in the main bus bar directly connects with power model, and the bus pole plate does not overlap mutually.Water cooled bottom plate is fixed on the actuator base with its back side, the fully controlled bridge of being made up of high-power switch tube is fixed on the water cooled bottom plate, current sensor is fixed on the actuator base, electrochemical capacitor lies against the top of high-power switch tube, and the capacitor of C type absorption circuit is close to the top of high-power switch tube.
In the utility model electric motor car alternating current motor driver, the major loop components and parts comprise fully controlled bridge, absorption circuit, the filter capacitor of being made up of six high-power switch tubes that have a fly-wheel diode.Wherein the output of electromobile battery connects positive, the negative-phase input of driver major loop, after electrochemical capacitor filtering, the DC bus-bar voltage that forms is added on the fully controlled bridge of six high-power switch tubes compositions that have fly-wheel diode, the base drive signal of each high-power switch tube is controlled the break-make of each switching tube, and DC bus-bar voltage is carried out copped wave.C type absorption circuit is connected between the main bus bar as the due to voltage spikes absorption circuit of main bus bar and high-power switch tube, the pwm voltage of Xing Chenging is gone up mutually by three phase winding U, V, the W that lead-out terminal is added in alternating current motor thus, drives the running of alternating current motor.
Compare with prior art electric motor car alternating current motor driver shown in Figure 6 with Fig. 4, Fig. 5, the utility model driver has following effect and advantage: 1. main bus bar: promptly electrochemical capacitor directly connects with power model, it is the shortest that main bus bar has reached, inductance minimum, the due to voltage spikes that produces in circuit are also minimum.2. in bus, pole plate is overlap joint not, has reduced the heating of main bus bar pole plate.3. owing to due to voltage spikes in the major loop is smaller, adopt the simplest C type absorption circuit, reduced the volume of driver.4. because water cooled bottom plate and actuator base are independent separately, water cooled bottom plate is smaller, has reduced the weight of driver.5. under equal power condition, it is minimum that the utility model driver volume and weight all reach, and can satisfy the demand of car to drive system simultaneously again.
Description of drawings:
Fig. 1 is the major loop components and parts scheme of installation (A-A of Fig. 2 analyses and observe) of the utility model electric motor car AC asynchronous motor driver.
Fig. 2 is the major loop component plane layout plan of the utility model electric motor car AC asynchronous motor driver.
Fig. 3 is the major loop schematic diagram of the utility model electric motor car AC asynchronous motor driver.
Fig. 4 is the major loop schematic diagram of a kind of electric motor car AC asynchronous motor of prior art driver.
Fig. 5 is the major loop components and parts scheme of installation (B-B of Fig. 6 analyses and observe) of a kind of electric motor car AC asynchronous motor of prior art driver.
Fig. 6 is the major loop component plane layout plan of a kind of electric motor car AC asynchronous motor of prior art driver.
Embodiment:
Below in conjunction with a description of drawings embodiment of the present utility model.
Figure 3 shows that the major loop schematic diagram of the utility model electric motor car AC induction motor driver.The output of electromobile battery connects positive, the negative-phase input 421,422 of driver major loop 400, through after electrochemical capacitor 410 filtering, form DC bus-bar voltage and be added on the fully controlled bridge that six high-power switch tube Q1-Q6 that have a fly-wheel diode form.The base drive signal of the Q1-Q6 of each high-power switch tube is respectively drive signal 1-6, and they are each switching tube break-make of corresponding control respectively, and DC bus-bar voltage is carried out copped wave.C type absorption circuit is connected between the main bus bar as the due to voltage spikes absorption circuit of main bus bar 421,422 and high-power switch tube Q1-Q6.The pwm voltage of Xing Chenging is gone up mutually by three phase winding U, V, the W that lead-out terminal 441,442,443 is added in alternating current motor thus, drives the running of alternating current motor.
The major loop components and parts installation diagram of the utility model electric motor car AC induction motor driver as depicted in figs. 1 and 2.The main composition components and parts of driver major loop comprise: water cooled bottom plate 100, actuator base 101, power model 111,112,113, electrochemical capacitor 121,122,123,124, C type absorption circuit 131,132,133, main bus bar pole plate 141,142, current sensor 151,152, three-phase output line 161,162,163.Wherein because water cooled bottom plate 100 is independent separately with actuator base 101, water cooled bottom plate 100 is fixed on the actuator base 101 from the back side.Power model 111,112,113 is fixed on the water-bed plate 100.Current sensor 151,152 is fixed on the actuator base 101; Electrochemical capacitor 121,122,123,124 lies against the top of power model 111,112,113.C type absorption circuit 131,132,133 is close on the power model 111,112,113.
A power by the technical solutions of the utility model manufacturing is 80kW electric motor car AC asynchronous motor driver, and its overall dimensions are long 420mm * wide 300mm * high 190mm, and weight is 17kg.And the structure of pressing Fig. 5 and prior art driver shown in Figure 6, its overall dimensions are long 550mm * wide 350mm * high 20mm, weight is 35kg.This shows that advantage of the present utility model and effect are very outstanding.
Claims (2)
1, a kind of electric motor car alternating current motor driver, its major loop comprises fully controlled bridge, absorption circuit, the filter capacitor of being made up of six high-power switch tubes that have a fly-wheel diode, the water cooled bottom plate and the base that it is characterized in that driver are independent separately, electrochemical capacitor in the main bus bar directly connects with power model, does not overlap mutually between the bus pole plate; Water cooled bottom plate is fixed on the actuator base with its back side, the fully controlled bridge of being made up of high-power switch tube is fixed on the water cooled bottom plate, current sensor is fixed on the actuator base, electrochemical capacitor lies against the top of high-power switch tube, and the electric capacity of C type absorption circuit is close to the top of high-power switch tube.
2. a kind of Electric Vehicle's Alternating motor driver according to claim 1, it is characterized in that the output of accumulator of electric car is connected in the positive of driver major loop, negative-phase input, after electrochemical capacitor filtering, the DC bus-bar voltage that forms is added on the fully controlled bridge of six high-power switch tubes compositions that have fly-wheel diode, the base drive signal of each high-power switch tube is controlled the break-make of each switching tube, and DC bus-bar voltage is carried out copped wave; C type absorption circuit is connected between the main bus bar as the due to voltage spikes absorption circuit of main bus bar and high-power switch tube, and the pwm voltage of Xing Chenging is gone up mutually by three phase winding U, V, the W that lead-out terminal is added in alternating current motor thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201006337U CN2650391Y (en) | 2003-11-12 | 2003-11-12 | Electric vehicle alternating-current motor driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201006337U CN2650391Y (en) | 2003-11-12 | 2003-11-12 | Electric vehicle alternating-current motor driven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650391Y true CN2650391Y (en) | 2004-10-20 |
Family
ID=34339348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201006337U Expired - Fee Related CN2650391Y (en) | 2003-11-12 | 2003-11-12 | Electric vehicle alternating-current motor driven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650391Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303368A (en) * | 2013-06-25 | 2013-09-18 | 芜湖爱瑞特环保科技有限公司 | Electronic differential steering system of electric sweeper |
| CN109272834A (en) * | 2017-07-18 | 2019-01-25 | 南京理工大学 | The high-frequency data display system of power supply conversion practice teaching table based on PLC |
-
2003
- 2003-11-12 CN CNU2003201006337U patent/CN2650391Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303368A (en) * | 2013-06-25 | 2013-09-18 | 芜湖爱瑞特环保科技有限公司 | Electronic differential steering system of electric sweeper |
| CN109272834A (en) * | 2017-07-18 | 2019-01-25 | 南京理工大学 | The high-frequency data display system of power supply conversion practice teaching table based on PLC |
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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: 20041020 Termination date: 20091214 |