CN201260145Y - Series excited machine control device - Google Patents
Series excited machine control device Download PDFInfo
- Publication number
- CN201260145Y CN201260145Y CNU2008201416141U CN200820141614U CN201260145Y CN 201260145 Y CN201260145 Y CN 201260145Y CN U2008201416141 U CNU2008201416141 U CN U2008201416141U CN 200820141614 U CN200820141614 U CN 200820141614U CN 201260145 Y CN201260145 Y CN 201260145Y
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- CN
- China
- Prior art keywords
- branch road
- contactor
- control device
- primary current
- control branch
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a motor control device, in particular to a control device of a motor vehicle series machine. The control device comprises a main current branch, a main control branch and a reversing control branch, the main current branch comprises a main contactor, a reversing contactor and a main controller, and both ends of the main current branch are connected with an anode and a cathode of an external storage battery, and the middle of the main current branch is connected with an external motor in series; the reversing control branch comprises a reversing contactor coil, the reversing contactor is connected with an external reversing switch in series, and both ends of the main control branch and the reversing branch are in parallel connection and then are jointly connected with the anode and the cathode of the external storage battery. The utility model has the advantages of reversed protection, contactor protection and arc-extinguishing function, thereby reducing the total failure rate and further ensuring safe driving.
Description
Technical field
The utility model relates to a kind of motor control assembly, more specifically is the serial excitation electromotor control device on a kind of motor vehicle.
Background technology
Existing serial excitation electromotor control device; generally comprise controller and outside electrical connection member; thereby exist certain design defect effectively not protect the damage that causes control assembly parts to existing series machine control assembly; for example following situation: main contactor and directional contactor poor contact of contacts or adhesion cause damaging, the control wire harness is connected and improperly causes that misoperation, power line reversal connection cause that controller directly damages, the frequent directly impact of starting current main contactor contact, seriously reduce the contactor life-span.Phenomenon such as above-mentioned can cause the out of control or cisco unity malfunction of motor vehicle, and personal safety is damaged, and these are the more scabrous technical problems in electric motor car control field.
The utility model content
The utility model has overcome deficiency of the prior art, provide a kind of failure rate with the protection of reverse connecting protection, contactor and arc extinguishing function low, more can guarantee the serial excitation electromotor control device of traffic safety.
The technical scheme in the invention for solving the technical problem is: comprise primary current leg, master control branch road, commutation control branch road, described primary current leg comprises main contactor, directional contactor, master controller, and described primary current leg two ends connect outside accumulator anode and cathode, middle serial connection external motor; Described commutation control branch road comprises the directional contactor coil, and the outside reversing switch of directional contactor serial connection is connected the accumulator anode and cathode of outside jointly after described master control branch road and the parallel connection of commutation branch road.
Described master control branch road and the insurance of commutation control branch road two ends serial connection control branch road, anti-reverse diode.
Master controller in the described primary current leg is also connecting an acceleration sensor that the outside of signal for faster is provided to master controller.
The inside of the master controller in the described primary current leg is provided with the size of the main branch current of control and the power tube of ON time; Also be provided with the fly-wheel diode that is attempted by the armature two ends.
Pre-charge resistance and fly-wheel diode in main contactor parallel connection in the described primary current leg.
Main contactor in the described primary current leg fills the nitrogen contactor for sealing.
Be serially connected with the primary current leg insurance in the described primary current leg.
The directional contactor of described commutation control branch road comprises four groups of contacts that are connected in series direction by two coils of two gear controls of outside reversing switch, by the decision magnet exciting coil of two coil controls.
Two coils from parallel connection of coils of described directional contactor fly-wheel diode.
Being serially connected with before described master control branch road and the commutation control branch road avoids big electric current to damage the control insurance of master control branch road and commutation control branch road.
Compared with prior art, the beneficial effects of the utility model are:
1. pre-charge resistance has reduced the peak current and the pressure drop of main contact contact, can avoid to greatest extent because contacts of contactor arcing electric shock and big electric current are overheated, thereby avoid the damages such as adhesion, ablation of main contactor contact.
2. the fly-wheel diode of contactor coil parallel connection has been protected contactor coil, has reduced the vehicle trouble rate.
3. the nitrogen contactor is filled in the sealing of Cai Yonging, has avoided dust, aqueous vapor, oxidizing substance to enter, and that the contact also is not easy is dirty, knot carbon, oxidation, rotten, avoids the infringement of electric arc to contacts of contactor.
4. the primary current leg insurance has effectively protected the master controller of primary current leg and components and parts to damage, and has also protected motor.
5. the control insurance has effectively protected the components and parts of respectively controlling branch road to damage, and has prevented that effectively accident from further enlarging.
6. accumulator anode and cathode connects inverse time; utilize characteristic that diode reverse ends that the power supply signal of control circuit is ended; the coil of main contactor can not get power supply signal causes main contactor not work, and the master control branch road is in open-circuit condition, thereby has effectively protected master controller.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, the utility model is made up of primary current leg, master control branch road, commutation control branch road.
As shown in Figure 2, primary current leg comprises main branch road insurance FU1, main contactor contact KM
1-1, directional contactor contact (KM
2-1, KM
2-2, KM
3-1, KM
3-2), master controller KZQ; The primary current leg two ends connect outside accumulator anode and cathode, outside armature L1 and the excitation winding L2 of middle serial connection; Main contactor contact KM
1-1Pre-charge resistance R1 in parallel; The master control branch road comprises main contactor coil KM1, the outside sensitive switch K2 of main contactor coil KM1 serial connection; Commutation control branch road comprise directional contactor coil KM2 and, directional contactor connects outside reversing switch K3.
The key switch K1 of master control branch road and the commutate insurance of control branch road two ends serial connection control branch road F2, anti-reverse diode D1, outside.
Master controller in the primary current leg is also connecting an acceleration sensor Rx that the outside of signal for faster is provided to master controller, this transducer is exported the corresponding signal of telecommunication by foot-operated accelerator pedal drive, master controller KZQ is to this signal of telecommunication shaping, the frequent switch of driving power pipe group Qn, export different electric currents and give armature L1 and excitation winding L2, produce different rotating speeds.
The inside of master controller KZQ in the primary current leg is provided with the size of the main branch current of control and the power tube group Qn of ON time; Also be provided with the sustained diode n that is connected armature L1 two ends, be used to protect armature L1 and power tube group Dn; Also be provided with capacitance group Cn, a large amount of electric charges of capacitance group Cn storage have effectively promoted master controller KZQ load capacity, reduce main contact contact KM
1-1Peak current, prolonged useful life of main contactor; Also be provided with input and logical circuit, be used to introduce the acceleration sensor position signalling of key switch state and outside and judge, when outside acceleration sensor Rx is moved or pushed down in the human pilot false touch, open key switch K1 again, vehicle can unexpected not start, make outside acceleration sensor Rx that action is arranged again otherwise open key switch K1 earlier, could start smoothly, thereby prevented the generation of contingency effectively.
Main contactor contact KM in the primary current leg
1-1Pre-charge resistance R1 in parallel, accelerator pedal sensitive switch K2 control by the outside, be used for before vehicle launch, being in advance the charging of the capacitance group Cn in the master controller KZQ, to guarantee that vehicle launch moment just can supply with major part electric current greatly by capacitance group Cn, and needn't mainly provide by storage battery, reduce peak current and the pressure drop of main contact contact KM1-1, can avoid to greatest extent because contacts of contactor KM
1-1Arcing electric shock and big electric current are overheated, thereby have avoided main contactor contact KM
1-1Damage such as adhesion, ablation.
Main contactor KM1 in the primary current leg fills the nitrogen contactor for sealing, has avoided dust, aqueous vapor, oxidizing substance to enter, and that the contact also is not easy is dirty, knot carbon, oxidation, rotten, avoids electric arc to main contactor contact KM
1-1Infringement.
Be serially connected with primary current leg insurance FU1 in the primary current leg; vehicle driving up overload and primary current leg are during by big electric current; can in time disconnect primary current leg, components and parts such as protection primary current leg master controller KZQ, main contactor damage and circuit burns, and reduce failure rate.
Main contactor coil KM1 two ends in the master control branch road are parallel with sustained diode 2, have effectively protected main contactor coil KM1.
The directional contactor of commutation control branch road comprises by two coil KM2 of two gears controls of outside reversing switch K3 and KM3, by four groups of contacts (KM2-1, KM2-2, KM3-1, KM3-2) of two coils controls, the serial connection direction of magnet exciting coil L2 is being controlled in four groups of contacts, is also just controlling the direction of rotation of external motor and advancing or astern direction of vehicle.Reversing switch K3 places neutral gear 1 state when flat, magnet exciting coil L2 can not be connected in series armature L1, and motor does not start; When placing 2 states, KM2 adhesive, normally opened contact KM
2-1Closure, normally-closed contact KM
2-2Disconnect, magnet exciting coil L2 forward serial connection armature L1, motor just changes; When placing 3 states, KM3 adhesive, normally opened contact KM
3-1Closure, normally-closed contact KM
3-2Disconnect, magnet exciting coil L2 oppositely is connected in series armature L1, the motor counter-rotating.
Two coil KM2 of directional contactor and KM3 in parallel respectively two sustained diode 3 and D4, effectively protected directional contactor coil KM2 and KM3.
Be serially connected with anti-reverse diode D1 before master control branch road and the commutation control branch road; the reverse connecting protection diode D1 that avoids the power supply reversal connection to damage master controller KZQ is connected in the control circuit of control assembly; just utilize characteristic that diode reverse ends that the power supply signal of control circuit is ended during the accumulator anode and cathode reversal connection; main contactor coil KM1 can not get power supply signal causes main contactor not work; the master control branch road is in open-circuit condition, thereby has effectively protected master controller KZQ.
Be serially connected with control branch road insurance FU2 before master control branch road and the commutation branch road, avoid the components and parts in big electric current damage master control branch road and the commutation control branch road.
Power supply in the present embodiment is a batteries, it is the 10A insurance that control branch road insurance FU2 tells in institute, the primary current leg of the telling insurance FU1 of institute is the 175A-400A insurance, and the motor of telling is the DC series motor, is made of electric component such as armature L1 and excitation winding L2 and structure member.
The flow direction of primary current leg is: flowed out through primary current leg insurance (175A-400A) by battery positive voltage and receive main contactor contact KM
1-1Positive terminal, again by main contactor contact KM
1-1Negative terminal respectively armature L1 and magnet exciting coil L2, the master controller KZQ that flows through then is to the controller battery terminal negative.The control circuit of assembly flows through the insurance of control branch road FU2 (10A protective tube), key switch K1 by the positive pole of power supply through reverse connecting protection diode D1; be further divided into master control branch road and commutation control branch road flow to contactor again through the sensitive switch K2 of accelerator coil KM1; flow to the coil KM2 and the KM3 of directional contactor simultaneously through reversing switch K3, flow back to the negative pole of power supply at last.Connect inverse time by knowing the flow direction analysis of circuit when power supply, because the characteristic that the reverse connecting protection diode reverse is ended is ended the power supply signal of control circuit, main contactor coil KM1 can not get power supply signal and causes main contactor contact KM
1-1Can not work, just will control the assembly primary current leg, thereby effectively protect master controller KZQ for open-circuit condition.Because the use of pre-charge resistance R1 and coil sustained diode 2 can be protected contactor to greatest extent, avoid the generation of contactor fault in normal operation.
Utilize technical scheme described in the utility model, or those skilled in the art designing the similar techniques scheme under the inspiration of technical solutions of the utility model, and reach above-mentioned technique effect, all is to fall into protection range of the present utility model.
Claims (10)
1. serial excitation electromotor control device, it is characterized in that: comprise primary current leg, master control branch road, commutation control branch road, described primary current leg comprises main contactor, directional contactor, master controller, and described primary current leg two ends connect outside accumulator anode and cathode, middle serial connection external motor; Described commutation control branch road comprises the directional contactor coil, and the outside reversing switch of directional contactor serial connection is connected the accumulator anode and cathode of outside jointly after described master control branch road and the parallel connection of commutation branch road.
2. serial excitation electromotor control device according to claim 1 is characterized in that: described master control branch road and the insurance of commutation control branch road two ends serial connection control branch road, anti-reverse diode.
3. serial excitation electromotor control device according to claim 1 is characterized in that: the master controller in the described primary current leg is also connecting an acceleration sensor that the outside of signal for faster is provided to master controller.
4. serial excitation electromotor control device according to claim 1 is characterized in that: the inside of the master controller in the described primary current leg is provided with the size of the main branch current of control and the power tube of ON time; Also be provided with the fly-wheel diode that is attempted by the armature two ends.
5. serial excitation electromotor control device according to claim 1 is characterized in that: pre-charge resistance and fly-wheel diode in the main contactor parallel connection in the described primary current leg.
6. serial excitation electromotor control device according to claim 1 is characterized in that: the main contactor in the described primary current leg fills the nitrogen contactor for sealing.
7. serial excitation electromotor control device according to claim 1 is characterized in that: be serially connected with the primary current leg insurance in the described primary current leg.
8. serial excitation electromotor control device according to claim 1 is characterized in that: the directional contactor of described commutation control branch road comprises by two coils of two gears controls of outside reversing switch, by four groups of contacts of the serial connection direction of the decision magnet exciting coil of two coils controls.
9. serial excitation electromotor control device according to claim 1 is characterized in that: described directional contactor coils from parallel connection of coils fly-wheel diode.
10. serial excitation electromotor control device according to claim 1 is characterized in that: be serially connected with before described master control branch road and the commutation control branch road and avoid big electric current to damage the control insurance of master control branch road and commutation control branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416141U CN201260145Y (en) | 2008-08-14 | 2008-08-14 | Series excited machine control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416141U CN201260145Y (en) | 2008-08-14 | 2008-08-14 | Series excited machine control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260145Y true CN201260145Y (en) | 2009-06-17 |
Family
ID=40774383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201416141U Expired - Fee Related CN201260145Y (en) | 2008-08-14 | 2008-08-14 | Series excited machine control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201260145Y (en) |
-
2008
- 2008-08-14 CN CNU2008201416141U patent/CN201260145Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 300308 Tianjin Binhai New Area of Tianjin free trade zone (Airport Economic Zone) ten West Road No. 1 Patentee after: Tianjin Santroll Electric Automobile Technology Co., Ltd. Address before: 300308 No., West ten road, airport logistics processing zone, Shanghai Patentee before: Tianjin Santroll Electric Science & Technology Co., Ltd. |
|
| 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: 20090617 Termination date: 20170814 |