CN2686178Y - Electrocar block power-off protection circuit - Google Patents
Electrocar block power-off protection circuit Download PDFInfo
- Publication number
- CN2686178Y CN2686178Y CN 200420042804 CN200420042804U CN2686178Y CN 2686178 Y CN2686178 Y CN 2686178Y CN 200420042804 CN200420042804 CN 200420042804 CN 200420042804 U CN200420042804 U CN 200420042804U CN 2686178 Y CN2686178 Y CN 2686178Y
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- delay circuit
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Abstract
The electric car block power-off protection circuit of the utility model comprises a speed regulation control circuit, a vibration sensor, and a time delay circuit. The two output terminals of a speed regulation controller are respectively connected with the two voltage input terminals of a motor, and the speed regulation controller controls the output power of the motor. The output terminal of the dynamic and static identification circuit is connected with the time delay circuit. The voltage of the time delay circuit is outputted to control the shutoff of the motor. When the motor idlings, the dynamic and static identification circuit controls the time delay circuit to output low level, and thereby, the motor is closed and broken. The functions of the dynamic and static identification circuit and the time delay circuit can be accomplished by a microprocessor. The input terminal of the microprocessor is connected with one terminal of the speed regulation control circuit and the vibration sensor in parallel, and the voltage of the microprocessor is outputted to control the shutoff of the motor. When the motor continuously idlings, the dynamic and static identification circuit controls the time delay circuit to output the low level to stall the motor through the arrangement of the vibration sensor, thereby, power consumption when the motor is blocked can be avoided, and automatic power-off protection is accomplished.
Description
[technical field]
The utility model is about electric automobiles, especially a kind of electric motor car stall power-off protecting circuit.
[background technology]
The utilization of electric motor car is more and more universal, and it has made things convenient for user's trip to a certain extent as the vehicles, but existing electric motor car generally can not realize automatic power-off protection when stall.In advancing, existing electric motor car runs into barrier (as wall time), wheel stops operating, motor does not have stop motion yet, still have power loss, so after a period of time, can cause motor to make motor damage, shorten the useful life of motor because of power consumption is excessive, even cause motor to damage fully, and because the generality of this problem also can make the development of whole electric motor car industry be affected.
[utility model content]
It is a kind of when the electric motor car stall that the purpose of this utility model is to provide, and can realize the electric motor car stall power-off protecting circuit of automatic power-off protection.
The purpose of this utility model is achieved in that this electric motor car stall power-off protecting circuit comprises speed-regulating control circuit; its two output connects two voltage input ends of motor respectively and controls the power output of motor; it is characterized in that: the vibrating sensor and the sound identification circuit that also comprise another output that is connected to this speed-regulating control circuit; the vibration signal of vibrating sensor is input to the sound identification circuit; the output of sound identification circuit connects delay circuit; the shutoff of the voltage output control motor of this delay circuit; make it when vibration signal is input to the sound identification circuit; sound identification circuit control delay circuit output high level; thereby make motor rotation; and when the vibration signal input was not arranged, the sound identification circuit was controlled the delay circuit output low level and motor is turn-offed.
Described sound identification circuit is a comparison amplifier.
Two outputs of described speed-regulating control circuit connect the forward voltage input of motor and the input of field effect transistor respectively, its another output also connects an end of vibrating sensor and the inverting input of comparison amplifier, this comparison amplifier output and connect the negative electrode of the diode of delay circuit, one end of resistance and the in-phase input end of comparator, the base stage of the output termination switching transistor of this comparator, the in-phase input end of comparison amplifier also connects the negative electrode of voltage-stabiliser tube and the inverting input of the comparator of delay circuit, the anode of diode and the other end of resistance also connect and by an electric capacity and ground connection, the other end of vibrating sensor, the anode of voltage-stabiliser tube and the grounded emitter of switching transistor, the collection utmost point of triode also connects an output of speed-regulating control circuit and the control end of field effect transistor, the negative voltage input end of one output termination motor of this field effect transistor, another output head grounding.
The voltage output of described delay circuit connects the base stage of a switching transistor, the shutoff of the collection utmost point control motor of this switching transistor, its grounded emitter.
Described sound identification circuit and delay circuit are microprocessor, the input of this microprocessor also connects speed-regulating control circuit and an end of vibrating sensor, the vibration signal of vibrating sensor is input to this microprocessor, when making its friction signal, this microprocessor makes the motor shutoff through plug-in time-delay back output low level, when making it that vibration signal be arranged, this microprocessor output high level runs well motor.
Compared with prior art; the utlity model has following advantage: by the setting of transducer and sound identification circuit; when the motor continuing spinning; then make the motor stall by sound identification circuit control delay circuit output low level; realized automatic power-off protection, thus the power loss of motor can avoid the electric motor car stall time.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the utility model electric motor car stall power-off protecting circuit.
Fig. 2 is a kind of concrete circuit diagram of the utility model electric motor car stall power-off protecting circuit.
[embodiment]
See also Fig. 1, the utility model electric motor car stall power-off protecting circuit comprises speed-regulating control circuit, vibrating sensor 10, sound identification circuit and delay circuit.Speed-regulating control circuit is an available circuit, its two output connects two voltage input ends of electric vehicle motor M1 respectively, thereby control the power output of this motor M 1, when the user rotates handlebar, promptly regulate the power output of motor M 1, realize control the speed of a motor vehicle size of electric motor car by this speed-regulating control circuit.Another output of speed-regulating control circuit also connects vibrating sensor 10 and the input of sound identification circuit, the vibration signal of vibrating sensor 10 is input to the sound identification circuit, the output termination delay circuit of this sound identification circuit, the output of this delay circuit is through connecing the input of switching transistor Q1, the output of this switching transistor Q1 connects voltage input end, another output of Q1 and the output head grounding of vibrating sensor 10 of motor M 1 by another switching transistor Q2.When vibration signal is input to the sound identification circuit, sound identification circuit control delay circuit output high level, thereby motor is run well, and when not having vibration signal to be input to the sound identification circuit, the sound identification circuit is controlled the delay circuit output low level and motor is turn-offed.In the present embodiment, Q1 is a triode, and Q2 is a field effect transistor.
When electric motor car moves again at cruising or by stall, vibrating sensor 10 switch inside circuit turn-ons, motor M 1 normal rotation.When the electric motor car stall, vibrating sensor 10 switch inside circuit disconnect, the voltage signal of speed-regulating control circuit outputs to the sound identification circuit, this identification circuit is realized judging to the motion state of motor by the pressure vibration signal of vibrating sensor 10, idle running in this way, then delay circuit is exported a low level, thereby makes Q1, Q2 turn-off motor M 1 stall; When electric motor car ran well, then delay circuit was exported high level, thereby makes Q1, Q2 conducting, and motor M 1 is rotated further.Delay circuit be provided with mainly be used for when this electric motor car when starting moment, because vibrating sensor 10 inductions are less than the motion of electric motor car, make the sound identification circuit judge this motor M 1 by accident and be in idle running, thereby turn-off Q1, Q2, and then make motor M 1 stall, so set a concrete time of delay, when surpassing this time of delay, vibrating sensor 10 is still responded to the motion less than electric motor car, the sound identification circuit judges that just this motor M 1 is in idling conditions, thus output low level and make motor M 1 stall.Certainly, this sound identification circuit and delay circuit can be realized by an integrated microprocessor, the input of this microprocessor also connects speed-regulating control circuit and an end of vibrating sensor, the vibration signal of vibrating sensor is input to this microprocessor, the shutoff of the voltage output control motor M 1 of this microprocessor, when the friction signal was imported, promptly during the electric motor car stall, this microprocessor made motor M 1 shutoff through plug-in time-delay back output low level; When vibration signal is imported, i.e. during electric motor car operate as normal, microprocessor is exported high level and is made motor M 1 operate as normal.
Fig. 2 is a kind of concrete realization circuit of this power-off protecting circuit; two outputs of speed-regulating control circuit connect the forward voltage input of motor M 1 and the input of field effect transistor Q2 respectively; its another output also connects an end of vibrating sensor 10 and the inverting input of comparator 01; the output of this comparator 01 connects the in-phase input end of comparator 02 after the time-delay of R1C1 delay circuit; the base stage of the output termination triode Q1 of this comparator 02; the in-phase input end of comparator 01 also connects the negative electrode of voltage-stabiliser tube Z1 and the inverting input of comparator circuit 02; the other end of the anode of diode D1 and resistance R 1 also connects and by a capacitor C 1 and ground connection, the other end of vibrating sensor 10; the grounded emitter of the anode of voltage-stabiliser tube Z1 and triode Q1.The collection utmost point of triode Q1 also connects an output of speed-regulating control circuit and the input (grid) of field effect transistor Q2, and the output (drain electrode) of this field effect transistor Q2 connects the negative voltage input end of motor M 1, another output (source electrode) ground connection.When the electric motor car stall, switching circuit in the vibrating sensor 10 disconnects, the inverting input of comparison amplifier 01 is a high level, then 01 be output as low level, the in-phase input end of the comparator 02 of delay circuit is a low level, and its inverting input is a high level, so 02 is output as low level, then triode Q1 and field effect transistor Q2 turn-off, thereby motor M 1 is turn-offed; When the electric motor car operate as normal, vibrating sensor 10 switch inside circuit turn-ons, so 01 inverting input is a low level, and in-phase input end is a high level, then 01 be output as high level, capacitor C 1 charging this moment, 02 in-phase input end is a high level, its inverting input is a low level, 01 is output as high level, then the collection utmost point of Q1 is output as low level, thus field effect transistor Q2 conducting, then motor M 1 operate as normal.
Claims (5)
1; a kind of electric motor car stall power-off protecting circuit; comprise speed-regulating control circuit; its two output connects two voltage input ends of motor respectively and controls the power output of motor; it is characterized in that: the vibrating sensor and the sound identification circuit that also comprise another output that is connected to this speed-regulating control circuit; the vibration signal of vibrating sensor is input to the sound identification circuit; the output of sound identification circuit connects delay circuit; the shutoff of the voltage output control motor of this delay circuit; make it when vibration signal is input to the sound identification circuit; sound identification circuit control delay circuit output high level; thereby make motor rotation; and when the vibration signal input was not arranged, the sound identification circuit was controlled the delay circuit output low level and motor is turn-offed.
2, require 1 described electric motor car stall power-off protecting circuit according to profit, it is characterized in that: described sound identification circuit is a comparison amplifier.
3, the described electric motor car stall of claim 2 power-off protecting circuit is characterized in that: the voltage output of described delay circuit connects the base stage of a switching transistor, the shutoff of the collection utmost point control motor of this switching transistor, its grounded emitter.
4. electric motor car stall power-off protecting circuit as claimed in claim 3; it is characterized in that: two outputs of described speed-regulating control circuit connect the forward voltage input of motor and the input of field effect transistor respectively; its another output also connects an end of vibrating sensor and the inverting input of comparison amplifier; this comparison amplifier output and connect the negative electrode of the diode of delay circuit; one end of resistance and the in-phase input end of comparator; the base stage of the output termination switching transistor of this comparator; the in-phase input end of comparison amplifier also connects the negative electrode of voltage-stabiliser tube and the inverting input of the comparator of delay circuit; the anode of diode and the other end of resistance also connect and by an electric capacity and ground connection; the other end of vibrating sensor; the anode of voltage-stabiliser tube and the grounded emitter of switching transistor; the collection utmost point of triode also connects an output of speed-regulating control circuit and the control end of field effect transistor; the negative voltage input end of one output termination motor of this field effect transistor, another output head grounding.
5, as any described electric motor car stall power-off protecting circuit of claim 1-4; it is characterized in that: described sound identification circuit and delay circuit are microprocessor; the input of this microprocessor also connects speed-regulating control circuit and an end of vibrating sensor; the vibration signal of vibrating sensor is input to this microprocessor; when making its friction signal input; this microprocessor turn-offs motor through plug-in time-delay output low level; when making it that vibration signal input be arranged, this microprocessor output high level runs well motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042804 CN2686178Y (en) | 2004-02-24 | 2004-02-24 | Electrocar block power-off protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042804 CN2686178Y (en) | 2004-02-24 | 2004-02-24 | Electrocar block power-off protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2686178Y true CN2686178Y (en) | 2005-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420042804 Expired - Fee Related CN2686178Y (en) | 2004-02-24 | 2004-02-24 | Electrocar block power-off protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2686178Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414745B (en) * | 2007-10-18 | 2011-09-21 | 茂达电子股份有限公司 | Motor protection device and method |
| CN105337259A (en) * | 2015-11-24 | 2016-02-17 | 珠海格力电器股份有限公司 | Motor locked-rotor protection method and device |
| CN106159903A (en) * | 2016-06-30 | 2016-11-23 | 杭州师范大学钱江学院 | A kind of fresh-keeping device motor rotation blockage protection circuit |
| CN110416972A (en) * | 2019-08-26 | 2019-11-05 | 无锡雷利电子控制技术有限公司 | Rotation-clogging protection and stall restart circuit device |
| CN113415368A (en) * | 2021-07-30 | 2021-09-21 | 品上佳自行车(深圳)有限公司 | Electric bicycle battery installation mechanism with built-in self-clamping structure |
-
2004
- 2004-02-24 CN CN 200420042804 patent/CN2686178Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414745B (en) * | 2007-10-18 | 2011-09-21 | 茂达电子股份有限公司 | Motor protection device and method |
| CN105337259A (en) * | 2015-11-24 | 2016-02-17 | 珠海格力电器股份有限公司 | Motor locked-rotor protection method and device |
| CN105337259B (en) * | 2015-11-24 | 2018-09-07 | 珠海格力电器股份有限公司 | Motor locked-rotor protection method and device |
| CN106159903A (en) * | 2016-06-30 | 2016-11-23 | 杭州师范大学钱江学院 | A kind of fresh-keeping device motor rotation blockage protection circuit |
| CN106159903B (en) * | 2016-06-30 | 2018-09-07 | 杭州师范大学钱江学院 | A kind of fresh-keeping device motor rotation blockage protection circuit |
| CN110416972A (en) * | 2019-08-26 | 2019-11-05 | 无锡雷利电子控制技术有限公司 | Rotation-clogging protection and stall restart circuit device |
| CN113415368A (en) * | 2021-07-30 | 2021-09-21 | 品上佳自行车(深圳)有限公司 | Electric bicycle battery installation mechanism with built-in self-clamping structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |