CN2437531Y

CN2437531Y - Storage battery overdischarge protector for moped

Info

Publication number: CN2437531Y
Application number: CN00242196U
Authority: CN
Inventors: 徐平; 施康宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-14
Filing date: 2000-07-14
Publication date: 2001-07-04
Anticipated expiration: 2010-07-14

Abstract

The utility model discloses an over-discharging protector for bicycle accumulators. The utility model is provided with a magnetic latching relay which is used as a power switch and is composed of an operational amplifier, a three-end voltage stabilizer, a crystal triode, a crystal diode, and partial resistors and capacitors. When the accumulator discharges and a voltage drops a specified termination voltage, a contact switch of a relay is switched off by a delay of 15 seconds and locked, a power supply of the accumulators is switched off, and external loads can not use the accumulators; thus, the contact switch of the relay can be contacted and locked by charging processes, and then the accumulators supply power for the loads. The utility model has the advantages that the utility model consumes no power when the utility model is in a protective state, and the current is less than 20mA in work.

Description

Electric bike battery over device

The utility model relates to a kind of electric bike battery and crosses and put protector.

The storage battery of Electrical Bicycle in use is easy to cause the overdischarge phenomenon, and this has shortened service life greatly.The function of this protector is exactly after storage battery is reached the final voltage of regulation in discharge, to cut off the electricity supply, and does not allow the storage battery deep discharge, could use power supply as power after forcing the rider to charge a battery.

Not power consumption when the purpose of this utility model provides a kind of guard mode, electric current is less than the electric bike battery over device of 20mA during work.

The utility model is taked following measures in order to achieve the above object:

Electric bike battery over device, it is the first amplifier pipe positive input termination the 3rd resistance, first variable resistance, one end, negative input end connects first and second resistance one end, output termination first diode cathode; The second amplifier pipe positive input termination, first diode cathode, the second adjustable resistance one end, first capacitance cathode, negative input end connects fourth, fifth, six resistance, one end, output termination the 8th resistance one end; First transistor base connects second capacitance cathode, the 8th resistance other end, collecting electrode and connects first group of coil one end of magnetic latching relay, grounded emitter; Second transistor base connects the 9th resistance one end, and collecting electrode connects second group of coil one end of magnetic latching relay, grounded emitter; Second diode cathode connects the 6th resistance other end, and negative pole connects the tenth resistance one end, three core sockets; The 3rd diode cathode connects first group of coil other end of magnetic latching relay, and negative pole connects the 7th resistance one end; The 4th diode cathode connects second group of coil other end of magnetic latching relay, and negative pole connects the 11 resistance one end; First three terminal regulator, first terminating resistor, one end, the 3rd capacitance cathode, the 3rd termination the 4th capacitance cathode, the 4th, the seven resistance other ends, first and second variable resistance other end, the second end ground connection; Second three terminal regulator, first termination the tenth resistance other end, the 5th capacitance cathode, the 3rd termination the 6th, seven capacitance cathodes, the 9th, the 11 resistance other ends, the second end ground connection; Magnetic latching relay one terminating resistor and the first resistance other end, three core sockets, another termination battery, the 5th diode cathode; The 5th diode cathode connects three core sockets, second and third, five resistance other end ground connection, all electric capacity negative earths.

The utility model only could the energized switch in when charging; internal components start working simultaneously (supervision battery tension); power consumption this moment is 20mA only; work as battery discharging; electric voltage dropping to the regulation final voltage the time; behind the time-delay 15S, cut off the electricity supply, at this moment protector is with not power consumption (zero-power).Want to continue to use, need after the storage source charging, internal switch could be connected.Here used magnetic to keep magnetic latching relay (being energy-saving pulsed magnetic guard relay again) as switch, to make above-mentioned functions become possibility, this protector directly is contained in the battery case of Electrical Bicycle.

Below in conjunction with accompanying drawing the utility model is elaborated.

Accompanying drawing is that electric bike battery is crossed and put the protector electrical schematic diagram.

Electric bike battery over device, it is the first amplifier pipe A1 positive input termination the 3rd resistance R 3, the first variable resistance W1, one end, negative input end connects first and second resistance R 1, R2 one end, the output termination first diode D1 positive pole; The second amplifier pipe A2 positive input termination, the first diode D1 negative pole, the second adjustable resistance W2 one end, first capacitor C, 1 positive pole, negative input end connects fourth, fifth, six resistance R 4, R5, R6 one end, output termination the 8th resistance R 8 one ends; The first aerotron T1 base stage connects second capacitor C, 2 positive poles, the 8th resistance R 8 other ends, collecting electrode and connects first group of coil J-L1 one end of magnetic latching relay, grounded emitter; The second aerotron T2 base stage connects the 9th resistance R 9 one ends, and collecting electrode connects second group of coil J-L2 one end of magnetic latching relay, grounded emitter; The second diode D2 positive pole connects the 6th resistance R 6 other ends, and negative pole meets the tenth resistance R 10 1 ends, three core socket CT2; The 3rd diode D3 positive pole connects first group of coil J-L1 of magnetic latching relay other end, and negative pole connects the 7th resistance R 7 one ends; The 4th diode D4 positive pole connects second group of coil J-L2 of magnetic latching relay other end, and negative pole connects the 11 resistance R 11 1 ends; The first three terminal regulator IC1, the first terminating resistor R0, one end, the 3rd capacitor C 3 positive poles, the 3rd termination the 4th capacitor C 4 positive poles, the 4th, seven resistance R 4, the R7 other end, first and second variable resistance W1, the W2 other end, the second end ground connection; The second three terminal regulator IC2, first termination the tenth resistance R, 10 other ends, the 5th capacitor C 5 positive poles, the 3rd termination the 6th, seven capacitor C 6, C7 positive pole, the 9th, 11 resistance R 9, the R11 other end, the second end ground connection; The magnetic latching relay J one terminating resistor R0 and first resistance R, 1 other end, three core socket CT0, another termination battery E, the 5th diode D5 positive pole; The 5th diode D5 negative pole meets three core socket CT2, second and third, five resistance R 2, R3, R5 other end ground connection, all electric capacity negative earths.

Need only during action and on coil, add one greater than the wide square type DC pulse of 50ms, can open (or closed) load circuit, the open and-shut mode of contact keeps by the magnetic force of permanent-magnet steel, if change the flow direction of coil, then the magnetic latching relay contact resets, and this state is pinned once again by permanent-magnet steel magnetic force.Magnetic in this device keeps the pull-in winding of magnetic latching relay to be made up of to opposite winding two prescriptions.By schematic diagram as can be known, the device of whole device circuit mainly contains magnetic maintenance magnetic latching relay, op amp, three terminal regulator, crystal triode, transistor diode and part resistance, electric capacity composition.

When being full of electric storage battery when being used, the magnetic latching relay contact is at closure state, battery provides electric current by CT0 to load, another road provides operating voltage by three terminal regulator IC1 to circuit, W1 and R3 provide reference voltage (i.e. the battery final voltage of She Dinging) for the positive input of amplifier A1, R1, R2 form voltage detecting circuit, this moment, the reverse input end current potential of A1 was higher than positive input, A1 is output as low level, the D1 conducting, A2 is output as low level, and T1 ends, and magnetic latching relay contact J remains on closure state.When storage battery is using in the discharge process, the stop value that voltage drops to regulation (is detected by R1, R2 dividing potential drop, R2 is lower than the magnitude of voltage on the R3) time, A1 counter-rotating output high level, D1 ends, and C1 charges by W2, the output high level, the base stage of T1 gets electric and conducting, and magnetic latching relay J-L1 coil produces adhesive contact, magnetic field J, makes it to be in opening and keeps locking.This moment, CT0 end and the equal no current of whole device passed through (zero-power), and storage battery over discharge phenomenon is controlled by actv..The effect of the integrating circuit that W2 and C1 form is to prevent that load motor from owing to stall or other reason, causing electric current to increase suddenly, and the terminal voltage of storage battery descends rapidly and causes the false triggering of A1, changes time constant to regulate W1, generally is controlled at 10～15 seconds.

When charging, the positive terminal of three core socket CT2 termination Charger (portable round)s, electric current by D5 to battery charging, give the base bias voltage of crystal triode T2 simultaneously through R10, three terminal regulator IC2, R9, the T2 conducting, magnetic latching relay J-L2 coil produces adhesive contact, magnetic field J, makes it to be in closure state and keeps locking.The effect of D2, R6 is in when beginning charging, when J-L2 conducting, contact J closure and entire circuit work, improves the current potential on the amplifier A2 reverse input end, prevents that A2 from disturbing and false triggering.

Claims

1. electric bike battery over device, it is characterized in that first amplifier pipe [A1] positive input termination the 3rd resistance [R3], first variable resistance [W1] end, negative input end connects first and second resistance [R1], [R2] end, output termination first diode [D1] positive pole; Second amplifier pipe [A2] positive input termination first diode [D1] negative pole, the second adjustable resistance [W2] end, first electric capacity [C1] positive pole, negative input end connects fourth, fifth, six resistance [R4], [R5], [R6] end, output termination the 8th resistance [R8] end; First aerotron [T1] base stage connects second electric capacity [C2] positive pole, the 8th resistance [R8] other end, collecting electrode and connects first group of coil of magnetic latching relay [J-L1] end, grounded emitter; Second aerotron [T2] base stage connects the 9th resistance [R9] end, and collecting electrode connects second group of coil of magnetic latching relay [J-L2] end, grounded emitter; Second diode [D2] positive pole connects the 6th resistance [R6] other end, and negative pole connects the tenth resistance [R10] end, three core sockets [CT2]; The 3rd diode [D3] positive pole connects first group of coil of magnetic latching relay [J-L1] other end, and negative pole connects the 7th resistance [R7] end; The 4th diode [D4] positive pole connects second group of coil of magnetic latching relay [J-L2] other end, and negative pole connects the 11 resistance [R11] end; First three terminal regulator [IC1], first terminating resistor [R0] end, the 3rd electric capacity [C3] positive pole, the 3rd termination the 4th electric capacity [C4] positive pole, the 4th, seven resistance [R4], [R7] other end, first and second variable resistance [W1], [W2] other end, the second end ground connection; Second three terminal regulator [IC2], first termination the tenth resistance [R10] other end, the 5th electric capacity [C5] positive pole, the 3rd termination the 6th, seven electric capacity [C6], [C7] positive pole, the 9th, 11 resistance [R9], [R11] other end, the second end ground connection; Magnetic latching relay [J] terminating resistor [R0] and first resistance [R1] other end, three core sockets [CTO], another termination battery [E], the 5th diode [D5] positive pole; The 5th diode [D5] negative pole connects three core sockets [CT2], second and third, five resistance [R2], [R3], [R5] other end ground connection, all electric capacity negative earths.