CN2523665Y

CN2523665Y - Anti-theft brake of electric bicycle

Info

Publication number: CN2523665Y
Application number: CN 02203663
Authority: CN
Inventors: 黄晓梦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-01
Filing date: 2002-02-01
Publication date: 2002-12-04
Anticipated expiration: 2012-02-01

Abstract

The utility model discloses a theftproof brake device used for an electric bicycle, which comprises a brake circuit consisting of electric conversion switches and an alarm circuit consisting of calculation and amplification. The alarm sensing signal is obtained from the electromotive force caused when a motor is rotated. After the device is installed, illegal driving of the electric bicycle produces brake and alarm, making the application safer and more convenient.

Description

The antitheft brake equipment of Electrical Bicycle

The utility model relates to anti-joyride device, especially a kind of Electrical Bicycle antitheft alarm system.

Electrical Bicycle is not established antitheft warning device at present, and for safety, car is parked or parked all temporarily and will lock, and is very inconvenient.The purpose of this device will provide a kind of economy, easy, the antitheft brake equipment of actv. exactly, makes illegal implementation or rides and all will send warning, utilizes the electricity generate function of the motor of Electrical Bicycle own simultaneously, produces the counter torque braking.Thereby reach and threaten the robber, prevent to escape rapidly, guarantee purpose of safety.

The antitheft brake equipment of a kind of Electrical Bicycle of the present utility model comprises the shell that is installed in the Electrical Bicycle nerd pack and the wiring board that comprises braking circuit, warning circuit in the enclosure is installed.Described wiring board is electrically connected with the original battery power of Electrical Bicycle, source switch lock, control capsule respectively, it is characterized in that: braking circuit is made up of a controlled change-over swith, the common port of described controlled change-over swith links to each other with the positive source inlet wire of control capsule, the normally closed contact end is connected to power cathode by power taking resistance, and the open contact end joins by the switch of source switch lock and the positive pole of battery power; The control end of controlled change-over swith is connected to the switch leading-out terminal of source switch lock; The warning transducing signal obtains from the sample resistance two ends.

Described antitheft brake equipment is characterized in that: the sample resistance between described normally closed contact end and power cathode is replaced by an electronic switch, and the control end of electronic switch positive pole direct by bias circuit and storage battery joins; The warning transducing signal is obtained by the two ends of described electronic switch.

Described antitheft brake equipment is characterized in that: described warning circuit is finished the amplification of signal, the generation and the control of warning signal by a slice amplifier integrated package.

The utility model is serially connected with Electrical Bicycle control capsule positive source inlet wire by the open contact of a controlled change-over swith, normally closed contact passes through very little sample resistance short circuit between both positive and negative polarity, when guaranteeing that the source switch lock is opened (switch closure), battery power is to the control capsule supply regular power, when source switch is locked (switch opens), rotate the electro-motive force of the back turbin generator generation of car, form the short circuit electric current by normally closed contact, thereby in motor, produce bigger counter torque (opposite) with wheel steering; And the electronic switch of setting up both can guarantee battery power just often, the electric power generation electric current forms the short circuit loop, causes braking by electronic switch, the transducing signal of reporting to the police also can guarantee again to ride by normal manpower when battery power does not have electricity easily from the two ends output of electronic switch; Only finish the amplification of signal, the generation and the control of warning signal, manufacturing cost is descended with an amplifier.Therefore the utility model modern design, rationally ingenious can be finished predetermined function less expensive.

The utility model has the following drawings:

Fig. 1 is the utility model profile front elevation

Fig. 2 is the utility model schematic circuit diagram.

The contrast accompanying drawing is further described the utility model in conjunction with the embodiments below.

The Electrical Bicycle anti-joyride device of embodiment in the Electrical Bicycle control capsule is placed special-purpose onboard osed top plastic casing, comprises plastics (ABS) shell 2, is installed in the wiring board 1 in the shell 2.Wiring board 1 comprises braking circuit 11, alarm circuit 12, and is electrically connected with Electrical Bicycle battery power G (36V), source switch lock K, control capsule respectively by pig-tail wire, and control capsule is electrically connected with motor, as shown in Figure 2.

Braking circuit 11 comprises controlled change-over swith J (15A/36V relay), electronic switch Q (IRFZ44N field effect transistor) and divider resistance R01, R02.To ground, the coil of open contact and relay J is connected to outlet 1 end of source switch lock K to the relay J normally closed contact altogether by electronic switch Q; Bleeder circuit is obtained voltage from battery power G; The alarm transducing signal is drawn from the two ends of electronic switch Q.

Alarm circuit 12 is made up of four high guaily unit integrated package U (LM324), V1, VT1, VT2 and peripheral circuit.The working power of alarm circuit 12 is provided by battery power.

During the Electrical Bicycle normal operation, source switch lock K opens (switch closure), the relay J coil gets electric adhesive, the open contact closure, and normally closed contact flicks, and control capsule gets electric normal operation, rotates Hall handgrip on the car, and the motor normal operation can be help others and be ridden.Because normally closed contact flicks, and the drain electrode of electronic switch Q there is not voltage, electronic switch Q is in off state on the one hand simultaneously, and 10 pin of amplifier U:C are by R0 ground connection on the other hand, and no warning signal is exported.

When source switch was locked (switch opens), the relay J dead electricity was returned to the initial position, control capsule+E end communicates with the drain electrode of electronic switch through normally closed contact.At this moment, if someone rotates trailing wheel, the electro-motive force that motor produces feeds back to the feeder ear+E of control capsule, because of the control end grid of electronic switch has the voltage that can make the pipe conducting for a long time, so the electro-motive force that motor produces makes electronic switch Q conducting, the loop produces bigger braking current, its moment stops riding of people, play brake action, the size of braking force strengthens and strengthens along with the speed of riding, thereby the robber is difficult to escape fast.

Simultaneously, make the electro-motive force of electronic switch Q conducting between the leakage of electronic switch Q, source, produce small conduction voltage drop, this signal voltage is alerted circuit 12 and amplifies, and the alarm signal of triggering schedule time length is exported SP+ (SP+ is connected to the power inleting terminal of Electrical Bicycle loudspeaker) thereby made loudspeaker send loud chimes of doom.

When battery power does not have, such as the fuse blew out in the storage battery box, canopy pole tension disappearance because of electronic switch Q, electronic switch Q is obstructed, and the electro-motive force that this moment, motor rotate to produce can be by short circuit (but having other high resistant loop), thereby lock torque is very little, can normally ride, the output of warning circuit 12 non-transformers, thereby alarm free simultaneously, this is actual just needed.

Iff report to the police considering from braking, can be simply with the normally closed contact of relay J by the very little direct ground connection of sample resistance, replace electronic switch Q.But this kind situation will make the user normally ride when battery power does not have electricity, because normally closed contact approximate directly, motor rotates the electro-motive force of generation always by short circuit, and lock torque exists always.

Why Here it is will change sample resistance into the reason of one electronic switch Q between relay J normally closed contact and ground.

Warning circuit 12 principles are as follows: when the battery power supply regular power, R6, V1 (4.9V) provide stable operating voltage (about 5V) for circuit; U:C, R11, R13 and U:D, R12, R14 form the two-stage amplifying circuit, and when no alarm transducing signal was imported, output 14 pin of U:D were low level; V4, C2 and R15 form warning and delaying circuit; U:A, R2, R7 and V2 form the control circuit of square-wave oscillator, and when 1 pin of U:A was low level, the charging valtage of C1 was clamped down on, the blocking of oscillator; U:B, R3, R4, R5, R8 and C1 form square-wave oscillator, and during failure of oscillation, 7 pin of U:B are high level; VT1, VT2, R9, R16 and V3 form drive circuit of loudspeaker, and when 7 pin of U:B were high level, the output SP+ of VT2 was a low level.Lock when source switch and to ride, by the drain electrode generation-small current potential of braking current at electronic switch Q, and be transported to in-phase end 10 pin of amplifier U:C, when this current potential is higher than end of oppisite phase 9 pin current potentials, difference of potential between the bipod is amplified through U:C and U:D two-stage, 14 pin at U:D produce high level, C2 is charged to the 1 pin output high level of U:A, square-wave oscillator vibration output, the SP+ end produces high-tension square wave output, and the active loudspeaker that can drive on the Electrical Bicycle send rapid chimes of doom.Once triggering the length of back time of fire alarming can determine by adjusting R15 or C2.

In sum, additional antitheft brake equipment between source switch lock and control capsule in the time of can realizing the normal walk help of Electrical Bicycle, is not affected.When source switch is locked, be equivalent between the power positive cathode inlet wire of control capsule and set up a shorting stub, thereby can form big electric current brake circuit, produce bigger lock torque, and report to the police.When battery power does not have electricity output, can guarantee can not add braking force in addition as ordinary bicycle.

Should be noted that, in order to narrate conveniently, the described controlled change-over swith of claim replaces with a break-before-make relay J in an embodiment, electronic switch is replaced by a field effect transistor Q, and in fact any have with the machinery or the electronic component of the same or similar characteristic of said elements all can.

Simultaneously, should be appreciated that the one of ordinary skilled in the art under the prerequisite that does not break away from this practical spirit, can also make various suitable changes or distortion, but these changes or distortion all should belong to protection domain of the present utility model.

Claims

1. antitheft brake equipment of Electrical Bicycle, comprise being installed in the shell (2) in the Electrical Bicycle nerd pack and being installed in and comprise braking circuit (11) in the shell (2), the wiring board (1) of warning circuit (12), wiring board (1) respectively with the original battery power of Electrical Bicycle, the source switch lock, control capsule is electrically connected, it is characterized in that: braking circuit (11) is made up of a controlled change-over swith, the common port of described controlled change-over swith links to each other with the positive source inlet wire of control capsule, the normally closed contact end is connected to power cathode by a sample resistance, and the open contact end joins by the switch of source switch lock and the positive pole of battery power; The control end of controlled change-over swith is connected to the switch leading-out terminal of source switch lock; The warning transducing signal takes out from the sample resistance two ends.

2. antitheft brake equipment according to claim 1 is characterized in that: the sample resistance between described normally closed contact end and power cathode is replaced by an electronic switch, and the control end of electronic switch positive pole direct by bias circuit and storage battery joins.

3. antitheft brake equipment according to claim 2 is characterized in that: the warning transducing signal is obtained by the two ends of described electronic switch.

4. it is characterized in that according to claim 1 or antitheft brake equipment according to claim 3: described warning circuit (12) is finished the amplification of signal, the generation and the control of warning signal by a slice amplifier integrated package.