CN1297052C

CN1297052C - Fully self-controlled large power combined pulse charging machine

Info

Publication number: CN1297052C
Application number: CNB2004100170687A
Authority: CN
Inventors: 苏永贵
Original assignee: 周淳
Priority date: 2004-03-19
Filing date: 2004-03-19
Publication date: 2007-01-24
Anticipated expiration: 2024-03-19
Also published as: CN1564422A

Abstract

The present invention relates to a fully autocontrol large-power combined pulse charging machine. One end of a control circuit resistor R16 of the fully autocontrol large-power combined pulse charging machine is connected with a terminal of a positive pole; the other end of the control circuit resistor R16 is respectively connected with one end of a DC relay J2, a cathode of a diodes D5, positive poles of capacitors C9, C11 and one end of a variable resistor RW2; the other end of the DC relay J2, an anode of the diodes D5 and a negative pole of the capacitor C9 are connected together with a collector of the triode BG5; a voltage stabilizing diode DW2, a capacitor C10 and a resistor R14 are connected between a base and an emitter of a triode BG5 in series; one end of a resistor R15 is connected between a voltage stabilizing diode DW and the capacitor C10, and the other end of the resistor R15 is connected with the variable end of the variable resistor RW2; the capacitor C11, the other end of the variable resistor RW2, the resistor R14 and the capacitor C10 are together connected with a terminal of a negative pole. A contact of the DC relay J2 and an AC relay J3 are connected in series between two output ends of the AC power supply. A contact of the AC relay J3 and a trickle circuit are connected in parallel among a positive pulse generating circuit, a negative pulse generating circuit and a terminal of a positive pole.

Description

The complete high-power combined pulse charger of automatic control type

Technical field:

The invention relates to charging device, particularly about using the charger of positive and negative pulse combined charging.

Background technology:

By certain duty ratio charger to charge in batteries, can prolong storage battery useful life owing to have by positive and negative pulse, utilization just gradually puts it over.But present various combined pulse charger is only applicable to the low power charge in batteries of centering, and (for example 5kw) is just inapplicable to high-power battery; Even it is of no avail too to change the components and parts of former charger into high-power components.Its reason is: 1. powerful combined charging machine is in case when the AC power catastrophic failure of input has a power failure, cause negative pulse to be formed huge discharging current to filling storage battery, thereby damage storage battery itself and charger.In the middle low power charger, this discharging current is limited, is in the scope that storage battery and charger can bear, so there are not special safeguard procedures.2. owing to must use powerful controllable silicon as switching device in the positive and negative pulse generating circuit, the threshold voltage of its control utmost point also rises thereupon, and the SCR control polar circuit of original middle low power can't be satisfied the demand.3. powerful charger is matching used with powerful storage battery, and the switching of big electric current and trickle charge is in time adjusted in the variation of the reserve of electricity when it requires charger to use with it; The middle low power charger then is after big electric current abundance enters trickle, and automatic control circuit has been self-locking under the condition that storage battery is not removed charger can not open the large current charge path again.The direct current relay operation voltage that uses has a fluctuation range, have vibration when causing contact contact or disconnection, produce spark, this is the existing still unsolved common fault of relay, but because the big electric current of positive and negative pulse current charge of high-power charger is too huge, will burn the contact in case produce spark, formation is opened circuit and can not be charged.Must develop the combined pulse charger of high-power battery special use for this reason.

Summary of the invention:

The invention reside in provides a kind of full automatic control type high-power combined pulse charger; the switching of big electric current and trickle charge can be in time adjusted in solution with the variation of storage battery reserve of electricity; the and technical problem that burn the contact can not take place, and the technical problem of power-off protection and raising SCR control utmost point signal voltage value.

The technical scheme that the present invention solves the problems of the technologies described above is as follows:

The high-power combined pulse charger of a kind of full automatic control type, comprise positive negative pulse stuffing generation circuit, time-base circuit and control circuit, it is characterized in that: this control circuit is by the 14th resistance (R14), the 15th resistance (R15), the 16th resistance (R16), the 9th electric capacity (C9), the 10th electric capacity (C10), the 11st electric capacity (C11), the second adjustable resistance (RW2), the 5th diode (D5), voltage stabilizing didoe (DW), the 4th triode (BG4), the 2nd direct current relay (J2) and the 3rd AC relay (J3) are formed, the 16th resistance (R16) end links to each other with the charger positive terminal, the other end respectively with the 2nd direct current relay (J2) end, the 5th diode (D5) negative electrode, the 9th electric capacity (C9) and the 11st electric capacity (C11) positive pole, the 2nd variable resistor (RW2) end links to each other, the 2nd direct current relay (J2) other end, the 5th diode (D5) anode links to each other with the 4th triode (BG4) collector electrode jointly with the 9th electric capacity (C9) negative pole, voltage stabilizing didoe (DW), the 10th electric capacity (C10) and the 14th resistance (R14) are serially connected between the 4th triode (BG4) base stage and the emitter successively, the 15th resistance (R15) end is connected between voltage stabilizing didoe (DW) and the 10th electric capacity (C10), the other end links to each other with the 2nd variable resistor (RW2) convertible tip, the 11st electric capacity (C11) links to each other with the charger negative terminals with the 10th electric capacity (C10) jointly with the 2nd variable resistor (RW2) other end and the 14th resistance (R14), the contact of the 2nd direct current relay (J2) and the 3rd AC relay (J3) are serially connected between AC power two inputs, and the contact and the trickle circuit of the 3rd AC relay (J3) just are connected in parallel on, between output of negative pulse generation circuit and charger positive terminal.

The above-mentioned high-power combined pulse charger of full automatic control type, it is characterized in that: be provided with the power-off protecting circuit of forming by the 1st direct current relay (J1), the 4th AC relay (J4) and the 3rd electric capacity (C3), the 1st direct current relay (J1) and the 3rd electric capacity (C3) are connected in parallel between the dc power anode and negative pole of AC power conversion, and the contact of the 1st direct current relay (J1) and the 4th AC relay (J4) are serially connected between AC power two inputs; The contact of the 4th AC relay (J4) is serially connected in the negative pulse generation circuit between the 3rd controllable silicon (3CT3) negative electrode and power transformer.

The above-mentioned high-power combined pulse charger of full automatic control type, it is characterized in that: be provided with the 1st triode (BG1) in the positive pulse generation circuit, the collector and emitter of the 1st triode (BG1) respectively with the anode of the 1st controllable silicon (3CT1) and extremely corresponding connection of control, the 7th coil (L7) that its base stage is passed through to be coupled with time-base circuit links to each other with the negative electrode of the 1st controllable silicon (3CT1).

The above-mentioned high-power combined pulse charger of full automatic control type is characterized in that: be provided with the 2nd triode (BG2) and the 3rd triode (BG3) in the negative pulse generation circuit; The collector and emitter of the 2nd triode (BG2) respectively with the anode of the 2nd controllable silicon (3CT2) and extremely corresponding connection of control, the 9th coil (L9) that its base stage is passed through to be coupled with time-base circuit links to each other with the anode of the 2nd controllable silicon (3CT2); The collector and emitter of the 3rd triode (BG3) respectively with the negative electrode of the 3rd controllable silicon (3CT3) and extremely corresponding connection of control, the snowslide circuits for triggering of 2nd resistance (R2), unidirectional diac (2CD) and 1st electric capacity (C1) composition of its base stage through connecting link to each other with the negative electrode of the 3rd controllable silicon (3CT3).

Advantage of the present invention is:

1. can press the variation of the actual electricity capacity of storage battery, big electric pulse or trickle pulse current charge at any time automatically switch.

2. in handoff procedure, relay contact adhesive or release movement are crisp, no electric spark.

3. power-off protection is set, can cause the loss of disaster and property because of the accident power-off of civil power.

4. utilize the enlarging function of triode, promptly improved control signal value, make circuit structure keep simple and practical characteristics again to satisfy the high threshold electric current of the high-power silicon controlled rectifier control utmost point.

Description of drawings:

Fig. 1 is a circuit diagram of the present invention.

Embodiment:

See also shown in Figure 1ly, the present invention comprises positive pulse generation circuit 2, negative pulse generation circuit 1, control circuit 4 and time-base circuit 5.Positive pulse generation circuit 2 also is provided with triode BG1 except that comprising diode D1 and D2, controllable silicon 3CT1, coil L7 and resistance R 4.The anode of diode D1 and D2 respectively with secondary coil L2, corresponding connection of L3 one output of power supply power transformation device T, their negative electrode links to each other with controllable silicon 3CT1 anode jointly.The emitter and collector of triode BG1 respectively be connected corresponding of the control utmost point of controllable silicon 3CT1 with anode, its base stage by and the coil L7 that is coupled of time-base circuit 5 be connected the negative electrode of controllable silicon 3CT1.Resistance R 4 one ends are connected on the negative electrode of controllable silicon 3CT1, and the other end links to each other with the positive terminal A of charger as the output of positive pulse.Negative pulse generation circuit 1 also is provided with triode BG2 and BG3 except that comprising capacitor C 1, resistance R 1～R3, variable resistor RW1, unidirectional diac 2CD, controllable silicon 3CT2 and 3CT3, coil L9.Capacitor C 1, resistance R 1 and variable resistor RW1 are serially connected between the output point O of secondary coil L2 one end of power transformer T and secondary coil L2, L3 link successively.Controllable silicon 3CT2 links to each other with secondary coil L2 one end with its negative electrode of 3CT3 serial connection back, and its anode exports positive terminal A to through resistance R 3.The collector and emitter of triode BG2 respectively with the anode of controllable silicon 3CT2 and extremely corresponding connection of control, the coil L9 that its base stage is passed through to be coupled with time-base circuit links to each other with the negative electrode of controllable silicon 3CT2.The collector and emitter of triode BG3 respectively with the anode of controllable silicon 3CT3 and extremely corresponding connection of control, the snowslide circuits for triggering of resistance R 2, unidirectional diac 2CD and capacitor C 1 composition of its base stage through connecting link to each other with the negative electrode of controllable silicon 3CT3.So just can be convenient and simplely the signal of time-base circuit 5 and above-mentioned snowslide circuits for triggering be amplified, be enough to promote the conducting of high-power silicon controlled rectifier.

This time-base circuit 5 is astable oscillators of being made up of three 555 type ic chip 1～IC3, eight resistance R 5～R12, five capacitor C 4～C8, output winding L6 and L8, it is by DC power supply 7 power supplies, output signal to coil L7 and L9 with corresponding coupling by the duty ratio of setting in turn by output winding L6 and L8, DC power supply 7 is by forming with diode D3, D4 and the capacitor C 2 of power transformer T secondary coil L4, the corresponding connection of L5 one end respectively.Diode D3 and D4 are the positive pole output of DC power supply 7, and the link of inferior coil L4 and L5 is as the negative pole output of DC power supply 7.DC power supply 7 also is provided with pressurizer WD with stable DC voltage.

The position formula electronic switch of the full automatic control type that this control circuit 4 is made up of resistance R 14, resistance R 15, resistance R 16, capacitor C 9, capacitor C 10, capacitor C 11, variable resistor RW2, diode D5, voltage stabilizing didoe DW, triode BG4, direct current relay J2 and AC relay J3.Resistance R 16 1 ends link to each other with charger positive terminal A, and the other end links to each other with direct current relay J2 one end, diode D5 negative electrode, capacitor C 9 and C11 positive pole, variable resistor RW2 one end respectively.The negative pole of the direct current relay J2 other end, diode D5 anode and capacitor C 9 links to each other with triode BG4 collector electrode jointly.Voltage stabilizing didoe DW, capacitor C 10 and resistance R 14 are serially connected between triode BG4 base stage and the emitter successively.Resistance R 15 1 ends are connected between voltage stabilizing didoe DW and the capacitor C 10, and the other end links to each other with variable resistor RW2 convertible tip.Capacitor C 11 links to each other with charger negative terminals B with capacitor C 10 jointly with the variable resistor RW2 other end and resistance R 14.The normally-closed contact J2-1 of direct current relay J2 and AC relay J3 are serially connected between AC power two inputs.Between the resistance R 4 of the positive and negative pulse generating circuit 2,1 of the normally opened contact J3-1 serial connection of AC relay J3, the output and positive terminal A of R3.The trickle circuit 3 and the contact J3-1 that are made up of resistance R 13 are connected in parallel between resistance R 4, R3 output and the positive terminal A.When being connected large-capacity battery between positive and negative electrode terminals A, B with the increase in charging interval during by abundance, its terminal voltage rises to set point through variable resistor RW2 sampling turn-on transistor BG4, making direct current relay J2 get electric adhesive swing arm separates normally-closed contact J2-1, make AC relay J3 dead electricity, normally opened contact J3-1 separates, the output of positive and negative like this pulse generating circuit 2,1 must just can transfer to storage battery through resistance R 13 current limlitings of trickle circuit 3, promptly carries out trickle charge.This trickle and storage battery to let out electric weight certainly suitable, to remedy from the loss of letting out, usually by battery capacity in 12 milliamperes/Ah.When the storage battery of abundance through the load electric consumption, its voltage drops to set point (for example reducing to 46V from 48V), triode BG4 ends, direct current relay J2 dead electricity, its normally-closed contact J2-1 closure, AC relay J3 gets, its normally opened contact J3-1 closure, the positive and negative pulse of big electric current of positive and negative pulse generating circuit 2,1 output is directly charged to storage battery through contact J3-1, repeats said process after the storage battery abundance again, and normally opened contact J3-1 separation enters trickle charge.This configuration of control circuit 4 of the present invention has thoroughly overcome the common fault that existing relay contact produces spark, has guaranteed that relay contact is with the nonarcing handoff procedure of finishing above-mentioned big electric current and trickle charge that once moves.

For sudden outage, the generation that prevents AC power causes storage battery with huge current discharge by negative pulse; cause the damage of storage battery and burning of charger components and parts; even initiation fire, the present invention is provided with the power-off protecting circuit of being made up of direct current relay J1, AC relay J4 and capacitor C 36.Direct current relay J1 and capacitor C 3 are connected in parallel between the positive and negative electrode of DC power supply 7; In the embodiment shown in fig. 1, the end of direct current relay J1 is to link to each other with DC power supply 7 anodal outputs by pressurizer WD.The normally opened contact J1-1 of direct current relay J1 and AC relay J4 are serially connected between AC power two inputs; The normally opened contact J4-1 of AC relay J4 is serially connected between the secondary coil L2 of controllable silicon 3CT3 negative electrode and power transformer T in the negative pulse generation circuit 1.When the present invention switches in AC power, direct current relay J1 obtains its normally opened contact of electric current adhesive J1-1 from DC power supply 7, thereby make AC relay J4 get its normally opened contact of electric adhesive J4-1, negative pulse generation circuit 1 is communicated with power transformer T constitutes the loop.In case AC power is interrupted suddenly, the output of DC power supply 7 no currents, direct current relay J1 dead electricity, its normally opened contact J1-1 separates, and makes AC relay J4 dead electricity separate normally opened contact J4-1, cuts off the loop of negative pulse generation circuit 1.

Because components and parts such as powerful controllable silicons used herein, resistance, heating is big, so the present invention also is provided with electric fan 8 with radiating and cooling, uses usually to exchange electric fan and directly be connected the power supply connection with exchanging; Also can use DC fan.

Claims

1, the high-power combined pulse charger of a kind of full automatic control type, comprise positive negative pulse stuffing generation circuit, time-base circuit and control circuit, it is characterized in that: this control circuit is by the 14th resistance (R14), the 15th resistance (R15), the 16th resistance (R16), the 9th electric capacity (C9), the 10th electric capacity (C10), the 11st electric capacity (C11), the second adjustable resistance (RW2), the 5th diode (D5), voltage stabilizing didoe (DW), the 4th triode (BG4), the 2nd direct current relay (J2) and the 3rd AC relay (J3) are formed, the 16th resistance (R16) end links to each other with the charger positive terminal, the other end respectively with the 2nd direct current relay (J2) end, the 5th diode (D5) negative electrode, the 9th electric capacity (C9) and the 11st electric capacity (C11) positive pole, the 2nd variable resistor (RW2) end links to each other, the 2nd direct current relay (J2) other end, the 5th diode (D5) anode links to each other with the 4th triode (BG4) collector electrode jointly with the 9th electric capacity (C9) negative pole, voltage stabilizing didoe (DW), the 10th electric capacity (C10) and the 14th resistance (R14) are serially connected between the 4th triode (BG4) base stage and the emitter successively, the 15th resistance (R15) end is connected between voltage stabilizing didoe (DW) and the 10th electric capacity (C10), the other end links to each other with the 2nd variable resistor (RW2) convertible tip, the 11st electric capacity (C11) links to each other with the charger negative terminals with the 10th electric capacity (C10) jointly with the 2nd variable resistor (RW2) other end and the 14th resistance (R14), the contact of the 2nd direct current relay (J2) and the 3rd AC relay (J3) are serially connected between AC power two inputs, and the contact and the trickle circuit of the 3rd AC relay (J3) just are connected in parallel on, between output of negative pulse generation circuit and charger positive terminal.

2, the high-power combined pulse charger of full automatic control type according to claim 1, it is characterized in that: be provided with the power-off protecting circuit of forming by the 1st direct current relay (J1), the 4th AC relay (J4) and the 3rd electric capacity (C3), the 1st direct current relay (J1) and the 3rd electric capacity (C3) are connected in parallel between the dc power anode and negative pole of AC power conversion, and the contact of the 1st direct current relay (J1) and the 4th AC relay (J4) are serially connected between AC power two inputs; The contact of the 4th AC relay (J4) is serially connected in the negative pulse generation circuit between the 3rd controllable silicon (3CT3) negative electrode and power transformer.

3, the high-power combined pulse charger of full automatic control type according to claim 1, it is characterized in that: be provided with the 1st triode (BG1) in the positive pulse generation circuit, the collector and emitter of the 1st triode (BG1) respectively with the anode of the 1st controllable silicon (3CT1) and extremely corresponding connection of control, the 7th coil (L7) that its base stage is passed through to be coupled with time-base circuit links to each other with the negative electrode of the 1st controllable silicon (3CT1).

4, the high-power combined pulse charger of full automatic control type according to claim 2, it is characterized in that: be provided with the 1st triode (BG1) in the positive pulse generation circuit, the collector and emitter of the 1st triode (BG1) respectively with the anode of the 1st controllable silicon (3CT1) and extremely corresponding connection of control, the 7th coil (L7) that its base stage is passed through to be coupled with time-base circuit links to each other with the negative electrode of the 1st controllable silicon (3CT1).

5, according to claim 1,2, the high-power combined pulse charger of 3 or 4 described full automatic control types, it is characterized in that: the collector and emitter that is provided with the 2nd triode (BG2) and the 3rd triode (BG3) the 2nd triode (BG2) in the negative pulse generation circuit respectively with the anode and extremely corresponding connection of control of the 2nd controllable silicon (3CT2), the 9th coil (L9) that its base stage is passed through to be coupled with time-base circuit links to each other with the negative electrode of the 2nd controllable silicon (3CT2); The collector and emitter of the 3rd triode (BG3) respectively with the anode of the 3rd controllable silicon (3CT3) and extremely corresponding connection of control, the snowslide circuits for triggering of 2nd resistance (R2), unidirectional diac (2CD) and 1st electric capacity (C1) composition of its base stage through connecting link to each other with the negative electrode of the 3rd controllable silicon (3CT3).