CN1249555A - Charger for battery - Google Patents
Charger for battery Download PDFInfo
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- CN1249555A CN1249555A CN 98120870 CN98120870A CN1249555A CN 1249555 A CN1249555 A CN 1249555A CN 98120870 CN98120870 CN 98120870 CN 98120870 A CN98120870 A CN 98120870A CN 1249555 A CN1249555 A CN 1249555A
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Abstract
A charger for battery is composed of power supply output unit, power supply input unit, charge-recharge control unit including rechargeable unit containing two rechargeable batteries, and switch connected to rechargeable unit, power supply output unit and power supply input unit. Said switch can work in charge mode or recharge mode. In charge mode, the first and the secnd rechargeable batteries are serially connected to power supply output unit to output the charging current from rechargeable unit to power supply output unit for charging. In recharge mode, said rechargeable batteries are parallelly connected to power supply input unit.
Description
The present invention relates to a kind of battery charger, particularly a kind of structure is less and be suitable for the charging device of automobile storage battery charging.
General charging device is that the storage battery with an automobile uses when charging fully, because charging device in the past very weighs and takies sizable space, so, usually only can in auto repair shop, just find, therefore, before leaving car, the driver forgets when car light cuts out, battery band must be gone charging there to the skilled worker, though, utilize jumper not have the storage battery of electricity to be connected to the storage battery of another automobile in automobile, just storage battery can not had the engine of the automobile of electricity to start, can provide engine required electric power but this method must rely on another automobile.In addition, be generally used in as the various charging device on the electrical appliance as mobile phone, portable computer and the luminaire and also be not suitable for charge in batteries for automobile.
The object of the present invention is to provide a kind of structure less, the battery charger for the automobile storage battery charging easy to use.
For achieving the above object, the present invention takes following measure:
A kind of battery charger of the present invention comprises:
One power supply output unit;
One power input unit;
It is characterized in that, also comprise:
One charging control unit again and again of charging, it comprises:
One rechargeable unit, it has first and second rechargeable battery;
One switching device, be connected to rechargeable unit, power supply output unit and power input unit, switching device can and move under the charge mode again and again at a charge mode, under charge mode, first and second rechargeable battery is connected in series to the power supply output unit, makes charging current be disposed to the power supply output unit to carry out the charging action from rechargeable unit; Recharging under the pattern, first and second rechargeable battery is connected to power input unit in parallel.
Described battery charger is characterized in that, also comprises:
A signal generation device, it is connected to described power supply output unit, this device is producing a secondary signal produce one first signal during the charging action when a charging voltage signal of power supply output unit is higher than the accurate position of a predetermined voltage when the charging voltage signal is lower than the accurate position of predetermined voltage during the charging action; And
Another signal generation device, it is connected to described charging charging control unit and described power input unit again and again, this device is higher than one and produces one the 3rd signal during critical voltage on predetermined recharging during the action cell voltage when described rechargeable unit, and produces one the 4th signal when recharging during the running on cell voltage is lower than critical voltage.
Described battery charger is characterized in that:
Described cell voltage is during at last critical voltage and once between the critical voltage, and described the 4th signal is a stable light output, and cell voltage is when being lower than lower critical voltage, and the 4th signal is the light output of a flicker.
Described battery charger is characterized in that, also comprises:
One is connected to described charging-recharge the status display unit that recharges of control unit and described power input unit, and it comprises:
One voltage divider and reference voltage generator, during described switching device is recharging under the pattern action, when this power input unit supply recharge current to charge-when recharging control unit, it is moved by the control unit that charges-recharge, produce first comparator voltage of the first of a cell voltage that is used for described rechargeable unit, an and reference voltage, be connected to one first comparator of this voltage divider and reference voltage generator, this first comparator is made comparisons first comparator voltage and this reference voltage, and
One is connected to first luminescence unit of first comparator, and when first comparator voltage during greater than reference voltage, this first luminescence unit predetermined is gone up critical voltage and the charging action can finish by first comparator drives to represent that this cell voltage is higher than.
Described battery charger is characterized in that:
The described status display unit that recharges comprises one second luminescence unit, and second luminescence unit moves when going up critical voltage when described cell voltage is lower than.
Described battery charger is characterized in that:
Described voltage divider and reference voltage generator are recharging during the action when by described charging again and again during the charging control unit action, produce second comparator voltage of the second portion of a cell voltage that is used for described rechargeable unit, recharge status display unit and comprise:
Be connected to one second comparator of described voltage divider and reference voltage generator, second comparator is made comparisons to second comparator voltage and reference voltage;
Be connected to the logic device of first, second comparator and described second luminescence unit; Logic device is to be lower than reference voltage when first comparator voltage, and when second comparator voltage is higher than reference voltage, drive described second luminescence unit produce stable light output with the expression cell voltage on described between critical voltage and the predetermined lower critical voltage, when second comparator voltage is lower than reference voltage, drive the light output that second luminescence unit produces a flicker and be lower than lower critical voltage and recharge the action continuation with the expression cell voltage.
Described battery charger is characterized in that:
Described charging charging control unit again and again more comprises a relay unit, relay unit has that a coiler part that is connected to described power input unit and connection recharge status display unit and described rechargeable unit normally is the relay contact portion of opening, by this during recharging action, come the closed relay contact portion for this coiler part energy and reach from the recharge current of described power input unit being connected to provide one to operate voltage signal to recharging status display unit between status display unit and the described rechargeable unit is provided.
Described battery charger is characterized in that, also comprises:
One charged state display unit;
The charged state display unit comprises a Zener diode and an optical transmitting set that is connected in series to described power supply output unit;
Between charge period when a charging voltage signal that appears at the power supply output unit is higher than the accurate position of a predetermined voltage, optical transmitting set is shown charging can be continued, when the charging voltage signal was lower than the accurate position of predetermined voltage, optical transmitting set was failure to actuate during charging operates, with expression charging end.
Described battery charger is characterized in that, also comprise one with described charging again and again charging control unit be connected recharge status display unit;
Recharge status display unit and comprise two comparators and a reference voltage generator
Described battery charger is characterized in that:
Described switching device comprises at least one double-point double-throw switch.
Described battery charger is characterized in that:
Described charging charging control unit again and again comprises that also a power supply divides head unit, and power supply divides head unit to be connected to described switching device.
Described battery charger is characterized in that:
Described power input unit comprises an AC to DC adapter.
The present invention is described in detail below in conjunction with drawings and Examples:
Description of drawings:
Fig. 1 is the circuit box schematic diagram of preferred embodiment of the present invention.
Fig. 2 is the circuit diagram of preferred embodiment of the present invention.
As shown in Figure 1, 2, battery charger 10 of the present invention comprises a power supply output unit 11, a power input unit, charge again and again charging control unit 13, a charged state display unit 14 and a charged state display unit 15 again and again.
This charging control unit 13 of charging again and again comprises first and second double-poles that constitute a switching device, double-throw (dpdt) switch (SW1.SW2), constitute a rechargeable unit the first and second 12 volts of rechargeable batteries (B1, B2) and a relay unit 131.First dpdt double-pole double-throw (DPDT) (dpdt) switch (SW1) have a pair of common terminal (B, E), a pair of first selecting side (A, D) and a pair of second selecting side (C, F).This first switch (SW1) is selectively in an ON position and OFF position action.In the ON position, these common terminal (B, E) be connected to respectively first selecting side (A, D).In the OFF position, common terminal (B, E) be connected to respectively second selecting side (C, F).(C is to be in floating F) in second selecting side of first switch (SW1).First selecting side (D) of first switch (SW1) and common terminal (B) are connected to first and second rechargeable batteries (B1, positive pole B2) respectively.The minus earth of first rechargeable battery (B1).Second double-point double-throw switch (SW2) have a pair of common terminal (H, K), a pair of first selecting side (G, J), and a pair of second selecting side (I, L).Second switch (SW2) selectively a charge position with move under the charge position again and again.Under this charge position, these common terminal (H, K) be connected to respectively these first selecting sides (G, J).Recharging the position, common terminal (H, K) be connected to respectively second selecting side (I, L).First selecting side (J) of second switch (SW2) and common terminal (K) are connected to first selecting side (A) of first switch (SW1).First selecting side (G) of second switch (SW2) and second selecting side (L) are connected to first switch (SW1) common terminal (E) and a power supply that comprises resistor (R5) and Zener diode (ZD2) divides head unit 133.Power supply divides the explanation of head unit 133 to be detailed later.The common terminal (H) of second switch (SW2) is connected to the negative pole of second rechargeable battery (B2).Second selecting side (I) of second switch (SW2) is grounded.Power supply output unit 11 is first selecting sides (A) that are connected to first switch (SW1) via a molten silk 132.(D1 D2) is connected to first selecting side (D) and the common terminal (B) of first switch (SW1) to power input unit 12 by diode.Power input unit 12 comprises a current-limiting resistor 121.In the present embodiment, relay 131 is reed relays, and it has the relay contact portion 1312 that a coiler part 1310 and that is connected to power input unit 11 is in opening usually.One end of contact portion 1312 is connected to first selecting side (D) of first switch (SW1), and its other end is connected to the anode of diode (D).One transistor (Q1) has a collector resistor (R1), that is connected to first selecting side (A) of first switch (SW1) and is connected to the base resistor (R) of common terminal (H) of second switch (SW2) and the emitter of a ground connection.Diode (D4) is connected to the collector electrode of transistor (Q1) on the negative electrode of diode (D1).
Recharge a logic device and a luminescence unit 146 that status display unit 14 comprises one first comparator 141, one second comparator 142, a voltage divider and reference voltage generator 143, is made of logical circuit 44 and clock generator 145.
Voltage divider and reference voltage generator 143 are connected to first rechargeable battery (B1) via diode (D3) and relay contact portion 1312.When action, voltage divider and reference voltage generator 143 one of generation are second comparator voltage (V2) and the preset reference voltage (Vref) of second portion of first comparator voltage (V1), a cell voltage that is first rechargeable battery (B1) of first of the cell voltage of first rechargeable battery (B1).First comparator 141 has first signal input part and the secondary signal input that receives reference voltage (Vref) that receive first comparator voltage (V1).Second comparator 142 has first signal input part and the secondary signal input that receives this reference voltage (Vref) that receive second comparator voltage (V2).Each first and second comparator 141,142 has more an operation voltage input that is connected to first rechargeable battery (B1) via diode (D3) and relay contact portion 1312.
In this preferred embodiment, clock generator 145 provides the oscillating clock signal of a 1Hz.Logical circuit 144 comprises first and second two input not gate (NOR) 1441,1442.One of them input of first not gate (NOR) 1441 is from clock generator 145 receive clock signals.Another input of first not gate 1441 receives the output of second comparator 142.One of them input of second not gate 1442 receives the output of first comparator 141.Another input of second not gate 1442 receives the output of first not gate 1441.
Luminescence unit 146 comprise two light-emitting diodes (LED1, LED2).Light-emitting diode (LED1) has one and is connected to the anode of first comparator 141 output and the negative electrode of a ground connection via resistor (R3).Light-emitting diode (LED2) has one and is connected to the anode of second not gate, 1442 outputs and the negative electrode of a ground connection.
Charged state display unit 15 comprises a light-emitting diode (LED3), a Zener diode (ZD1) and a resistor (R4) that in series is connected across between power supply output unit 11 and the ground wire.
When this preferred embodiment is used for when carrying out storage battery (figure does not show) charging with an automobile, power supply output unit 11 can be connected directly to storage battery, as using jumper (figure does not show).Then, (SW1, SW2) switching device of Gou Chenging is to be in action under the charge mode that ON position and second switch (SW2) be in charge position at first switch (SW1) by first and second switch.(SW1) is in the ON position at first switch, these common terminal (B, E) be connected to respectively first selecting side (A D), and is in charge position at second switch (SW2), these common terminal (H, K) be connected to respectively first selecting side (G, J).At this moment, (B1 B2) is connected in series to power supply output unit 11 first and second rechargeable battery, can allow charging current from battery (B1, B2) be disposed to power supply output unit 11, with the amount of the engine (figure does not show) that charge in batteries to is enough to start automobile.
As first and second rechargeable battery (B1, B2) discharge is when initial, charging voltage signal at power supply output unit 11 is higher than an accurate position of the predetermined voltage that is enough to make Zener diode (ZD1) conducting and move light-emitting diode (LED3), for example, 15 volts, cause first signal that shows that the charging action can continue by this.(B1, discharge sustain B2) can finally be reduced under the accurate position of this predetermined voltage at the charging voltage signal of power supply output unit 11 during a period of time when first and second rechargeable battery.Zener diode (ZD1) stop conducting, and this light-emitting diode (LED3) is failure to actuate, and obtain a secondary signal in order to show that the charging action can finish.Through first switch (SW1) being moved the OFF position, (B1 B2) is not connected with this power supply output unit 11 first and second rechargeable battery, can avoid first and second rechargeable battery (B1, B2) unnecessary discharge.
During the charging action, (D1, flowing of charging current D2) can not guarantee to avoid the action out of style of relay unit 131 through diode.At this moment, transistor (Q1) provides the Additional Protection of the action out of style of avoiding relay 131.Because the coiler part 1310 that does not have electric current to be filled at this moment to be permitted to flow through relay unit 131 recharges status display unit 14 and keeps not being connected with first rechargeable battery (B1).Light-emitting diode (LED1, LED2) not action always when this device is carried out the charging action.
During above-mentioned charging action, the parted hair that power supply divides head unit 133 to allow first rechargeable battery (B1) can move has the electrical equipment that low voltage requires, picture automotive tv, car vacuum, phone, automobile defecator, automobile refrigerator etc. perhaps can be with the battery charge of electrical equipment.
(B1 B2) has been used for for follow-up charging is prepared, must carrying out recharging action so that (B1 B2) recharges with battery with after the storage battery of automobile (figure does not show) charging at first and second rechargeable battery.At this moment, this switching device is to be in OFF position and second switch (SW2) at first switch (SW1) to be under the pattern that recharges that recharges the position and to move.(SW1) is in the OFF position at first switch, common terminal (B, E) be connected to respectively second selecting side (C F), recharges the position and be at second switch (SW2), common terminal (H, K) be connected to respectively second selecting side (I, L).The negative pole of second rechargeable battery (B2) via the end of second switch (SW2) (H I) is grounded, and diode (D1, D2) (B1 B2) is connected to power input unit 12 in parallel with first and second rechargeable battery.(B1 is not to be connected with power supply output unit 11 when first switch (SW1) is in the OFF position B2) to first and second rechargeable battery.Therefore, there is not voltage signal to come across power supply output unit 11, so that light-emitting diode (LED3) keeps being failure to actuate during recharging action.
First comparator 141 is made comparisons first comparator voltage (V1) and reference voltage (Vref).When first comparator voltage (V1) is bigger than reference voltage (Vref), the cell voltage of representing first rechargeable battery (B1) is higher than a predetermined critical voltage of going up, as 13 volts, first comparator 141 produces a high logic output, no matter under the output of second comparator 142, driven for emitting lights diode (LED1) produces an expression and recharges the 3rd signal that action can finish by this.The output of second not gate 1442 is in low logic state, and light-emitting diode (LED2) is not luminous.
When first comparator voltage (V1) is lower than reference voltage (Vref), represent that the cell voltage of first rechargeable battery (B1) is lower than the predetermined critical voltage of going up, first comparator 141 produces a low logic output, and light-emitting diode (LED1) is failure to actuate by this.Second comparator 142 is made comparisons second comparator voltage (V2) and reference voltage (Vref).When second comparator voltage (V2) during greater than reference voltage (Vref), represent that the cell voltage of first rechargeable battery (B1) is higher than a predetermined lower critical voltage, as 10.5 volts, second comparator 142 produces a high logic output.The output of first not gate 1441 is in low logic state, and the output of second not gate 1442 is in high logic state, make light-emitting diode (LED2) produce a stable light output by this, represent that the cell voltage of first rechargeable battery (B1) is positioned within the scope of critical voltage.
When second comparator voltage (V2) is lower than reference voltage (Vref), represent that the cell voltage of first rechargeable battery (B1) is lower than predetermined lower critical voltage, second comparator 142 produces low logic output.The output of first not gate 1441 is with opposite from the clock signal of clock generator 145, and the output of second not gate 1442 is opposite with the output of first not gate 1441.At this moment, light-emitting diode (LED2) is moved to produce the light output of a flicker, represents that this recharges action and should continue.
In sum, battery charger of the present invention has following effect:
One, this charging device volume is little is convenient for carrying. In addition, this charging device can be by again Charging prepares for follow-up charging electric.
Two, employed first and second rechargeable electricity in the battery charger of the present invention Pond (B1, B2) can not be connected to guarantee to avoid battery (B1, B2) after charging Unnecessary discharge.
Claims (12)
1, a kind of battery charger comprises:
One power supply output unit;
One power input unit;
It is characterized in that, also comprise:
One charging control unit again and again of charging, it comprises:
One rechargeable unit, it has first and second rechargeable battery;
One switching device, be connected to rechargeable unit, power supply output unit and power input unit, switching device can and move under the charge mode again and again at a charge mode, under charge mode, first and second rechargeable battery is connected in series to the power supply output unit, makes charging current be disposed to the power supply output unit to carry out the charging action from rechargeable unit; Recharging under the pattern, first and second rechargeable battery is connected to power input unit in parallel.
2, battery charger according to claim 1 is characterized in that, also comprises:
A signal generation device, it is connected to described power supply output unit, this device is producing a secondary signal produce one first signal during the charging action when a charging voltage signal of power supply output unit is higher than the accurate position of a predetermined voltage when the charging voltage signal is lower than the accurate position of predetermined voltage during the charging action; And
Another signal generation device, it is connected to described charging charging control unit and described power input unit again and again, this device is higher than one and produces one the 3rd signal during critical voltage on predetermined recharging during the action cell voltage when described rechargeable unit, and produces one the 4th signal when recharging during the running on cell voltage is lower than critical voltage.
3, battery charger according to claim 2 is characterized in that:
Described cell voltage is during at last critical voltage and once between the critical voltage, and described the 4th signal is a stable light output, and cell voltage is when being lower than lower critical voltage, and the 4th signal is the light output of a flicker.
4, battery charger according to claim 1 is characterized in that, also comprises:
One be connected to described charging again and again charging control unit and described power input unit recharge status display unit, it comprises:
One voltage divider and reference voltage generator, during described switching device is recharging under the pattern action, when this power input unit supply recharge current when charging again and again charging control unit, it is moved by the charging control unit of charging again and again, produce first comparator voltage of the first of a cell voltage that is used for described rechargeable unit, an and reference voltage, be connected to one first comparator of this voltage divider and reference voltage generator, this first comparator is made comparisons first comparator voltage and this reference voltage, and
One is connected to first luminescence unit of first comparator, and when first comparator voltage during greater than reference voltage, this first luminescence unit predetermined is gone up critical voltage and the charging action can finish by first comparator drives to represent that this cell voltage is higher than.
5, battery charger according to claim 4 is characterized in that:
The described status display unit that recharges comprises one second luminescence unit, and second luminescence unit moves when going up critical voltage when described cell voltage is lower than.
6, battery charger according to claim 5 is characterized in that:
Described voltage divider and reference voltage generator are recharging during the action when by described charging again and again during the charging control unit action, produce second comparator voltage of the second portion of a cell voltage that is used for described rechargeable unit, recharge status display unit and comprise:
Be connected to one second comparator of described voltage divider and reference voltage generator, second comparator is made comparisons to second comparator voltage and reference voltage;
Be connected to the logic device of first, second comparator and described second luminescence unit; Logic device is to be lower than reference voltage when first comparator voltage, and when second comparator voltage is higher than reference voltage, drive described second luminescence unit produce stable light output with the expression cell voltage on described between critical voltage and the predetermined lower critical voltage, when second comparator voltage is lower than reference voltage, drive the light output that second luminescence unit produces a flicker and be lower than lower critical voltage and recharge the action continuation with the expression cell voltage.
7, battery charger according to claim 4 is characterized in that:
Described charging-recharge control unit more comprises a relay unit, relay unit has that a coiler part that is connected to described power input unit and connection recharge status display unit and described rechargeable unit normally is the relay contact portion of opening, by this during recharging action, come the closed relay contact portion for this coiler part energy and reach from the recharge current of described power input unit being connected to provide one to operate voltage signal to recharging status display unit between status display unit and the described rechargeable unit is provided.
8, battery charger according to claim 4 is characterized in that, also comprises:
One charged state display unit;
The charged state display unit comprises a Zener diode and an optical transmitting set that is connected in series to described power supply output unit;
Between charge period when a charging voltage signal that appears at the power supply output unit is higher than the accurate position of a predetermined voltage, optical transmitting set is shown charging can be continued, when the charging voltage signal was lower than the accurate position of predetermined voltage, optical transmitting set was failure to actuate during charging operates, with expression charging end.
9, battery charger according to claim 1 is characterized in that, also comprise one with described charging again and again charging control unit be connected recharge status display unit;
Recharge status display unit and comprise two comparators and a reference voltage generator.
10, battery charger according to claim 1 is characterized in that:
Described switching device comprises at least one double-point double-throw switch.
11, battery charger according to claim 1 is characterized in that:
Described charging-recharge control unit comprises that also a power supply divides head unit, and power supply divides head unit to be connected to described switching device.
12, battery charger according to claim 1 is characterized in that:
Described power input unit comprises an AC to DC adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98120870 CN1249555A (en) | 1998-09-30 | 1998-09-30 | Charger for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98120870 CN1249555A (en) | 1998-09-30 | 1998-09-30 | Charger for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1249555A true CN1249555A (en) | 2000-04-05 |
Family
ID=5226889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98120870 Pending CN1249555A (en) | 1998-09-30 | 1998-09-30 | Charger for battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1249555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422863A (en) * | 2017-02-13 | 2018-08-21 | 现代自动车株式会社 | Light control device and its vehicle and method for controlling a vehicle |
-
1998
- 1998-09-30 CN CN 98120870 patent/CN1249555A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422863A (en) * | 2017-02-13 | 2018-08-21 | 现代自动车株式会社 | Light control device and its vehicle and method for controlling a vehicle |
| CN108422863B (en) * | 2017-02-13 | 2022-05-13 | 现代自动车株式会社 | Light control device, vehicle with the same, and method for controlling vehicle |
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