CN1983755A - Secondary battery protector with persistent supply - Google Patents
Secondary battery protector with persistent supply Download PDFInfo
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- CN1983755A CN1983755A CN 200510130539 CN200510130539A CN1983755A CN 1983755 A CN1983755 A CN 1983755A CN 200510130539 CN200510130539 CN 200510130539 CN 200510130539 A CN200510130539 A CN 200510130539A CN 1983755 A CN1983755 A CN 1983755A
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- battery
- main battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention is concerned with the secondary battery protective equipment that can process maintenance power supply, includes: the main battery, two power outputting line, the low voltage cut-off implement, and the assistant battery; the main battery and the assistant battery assumes parallel power supply circuit state by the two power outputting line, and especially compounds the low voltage cut-off implement between the main battery and one power outputting line; the main battery can be away the power outputting line to stop power supply by the low voltage cut-off implement when the voltage value of the main battery outputting end is lower than the cut-off action voltage of the low voltage cut-off implement, the assistant battery can maintain the power output to the two power outputting line and load.
Description
Technical field
The present invention is a kind of apparatus for protection of secondary battery that maintains power supply; be meant especially in having the circuit of main battery; increase and set a boosting battery, and only carry out low-voltage by protection at main battery, boosting battery then remains the circuit arrangement of power supply.
Background technology
But secondary cell be widely used in each product at present, but the cost of secondary cell is higher, and the restriction in the discharge is arranged owing to have the characteristic that recharge uses, and is its shortcoming; When secondary cell was used in orthodox car or motor vehicle, the discharge operation scope of battery was wider, if the operating position of continuation heavy-current discharge or deep discharge is arranged, can cause the battery major injury in useful life in the use; For example: if during the secondary cell that uses as vehicle with lithium battery, because the involving great expense of lithium battery, battery damages will cause the great economic loss of user;
Therefore, electrical machinery of Japanese sanyo has promptly proposed No. 83106489 patent case of application, its terminal voltage at battery is carried out detecting voltage and comparison, when the terminal voltage of battery when comparison is lower than discharge cut-off voltage (low-voltage), promptly with power down process, the secondary cells such as lithium battery of using the protective price costliness can be not impaired;
It should be noted that, when if secondary cell is used in vehicle, a lot of electronic systems is arranged in the vehicle now usually, when blocking the power supply of battery fully, to cause the electronic system of vehicle also can't operate fully, for example: the fault self-detection system of automobile, vehicle activate ignition system, in-car phoning system, warning lamp, power windows, global positioning system etc. and all can't operate fully; And usually when vehicle trouble, the running of keeping of aforementioned electronic system has its necessity again;
Therefore, the inventor does one's utmost thinking, if can still can provide another to keep electric power when main battery is blocked protection because of unusual condition, allows the interior electronic system of car still can keep running, certainly will can solve foregoing problems.
Summary of the invention
Main purpose of the present invention, be to be to provide a kind of apparatus for protection of secondary battery that maintains power supply, pass through the technology of the present invention, when battery excessively power (deep discharge) unusual condition appears or in vehicle load, and cause the terminal voltage of main battery to reduce, and when the main battery terminal voltage is reduced to cut-ff voltage, will impel low-voltage to end the device start, the power supply of blocking between main battery and the electric power output line connects; By this, can avoid main battery to continue to be caused the damage that can't recover, save the higher main battery of cost from damage by deep discharge, and the electronic equipment even load in the car, then can be by the lower boosting battery continued power running of cost.
For reaching the foregoing invention purpose, the technical scheme that is adopted is as follows: a kind of apparatus for protection of secondary battery that maintains power supply, and it mainly comprises: a main battery, can power and give load, as main supply of electric power source; Two electric power output lines are done electrically to connect with the main battery output, make the main battery can be from two electric power output line output powers; One low-voltage is by device, and two ends electrically connect with an electric power output line and main battery respectively, and makes low-voltage end device and main battery is the series circuit kenel; One boosting battery, its two output are done electrically to connect with two electric power output lines respectively, make main battery and boosting battery can be the circuit kenel of parallel operation by two electric power output lines; By this, in the main battery output end voltage be lower than low-voltage by device when the start voltage, main battery can be cut off by device by low-voltage and stop power supply, boosting battery then still can be kept electric power and export two electric power output line and loads to.
Main battery can be made of lithium secondary battery, and boosting battery then is made of lead-acid battery.
Low-voltage can constitute by the long-pending diode of receiving by device.
Beneficial effect of the present invention is: a kind of apparatus for protection of secondary battery that maintains power supply provided by the invention, pass through the technology of the present invention, when battery excessively power (deep discharge) unusual condition appears or in vehicle load, and cause the terminal voltage of main battery to reduce, and when the main battery terminal voltage is reduced to cut-ff voltage, to impel low-voltage to end the device start, the power supply of blocking between main battery and the electric power output line connects; Therefore, can avoid main battery to continue to be caused the damage that can't recover, saved the higher main battery of cost from damage, and the electronic equipment even load in the car then can reach the effect that continued power operates by the lower boosting battery of cost by deep discharge.
Description of drawings
Fig. 1 is a battery feed circuit schematic diagram of the present invention.
Fig. 2 is that low-voltage of the present invention is ended main battery power supply state schematic diagram by the device start.
The primary clustering symbol description
10 main batterys 201 and 202 electric power output lines
30 low-voltages are by device 40 boosting batteries
50 loads
Embodiment
About the present invention for reaching above-mentioned purpose, the technology that is adopted, means and effect, lift now a preferable possible embodiments cooperate graphic detailed description as after; At first, please cooperate and consult Fig. 1, shown in Figure 2, the apparatus for protection of secondary battery that maintains power supply that the embodiment of the invention provided, it mainly is made of by a device 30 and a boosting battery 40 main battery 10, two electric power output lines 20, a low-voltage; Wherein:
This main battery 10 is the main supply of electric power sources of giving load 50 as power supply; Can be constituted by secondary cell, for example: can constitute by the higher lithium battery of cost with higher power capacity;
This two electric power output line 201 and 202 is done electrically to connect with the output and the load 50 of main battery 10 respectively, makes main battery 10 give load 50 from two electric power output lines 201 and 202 output powers;
This low-voltage is by device 30, and its two end electrically connects with an electric power output line 201 and main battery 10 respectively, and makes low-voltage end device 30 and main battery 10 is the circuit kenel that is connected in series; This low-voltage can be selected for use according to the actual demand of main battery 10 by device 30 its cut-ff voltages; On the practice, low-voltage can constitute by the long-pending diode of receiving by device 30, and for example: if the operating voltage of this diode is more than 12 volts, and cut-ff voltage is below nine volts, then is 12 volts main battery 10 systems use applicable to terminal voltage;
This boosting battery 40 can be made of cheaper low capacity secondary cell, for example, can be made of the lower lead-acid battery of cost; Two outputs of boosting battery 40, be to do electrically to connect with two electric power output lines 201 and 202 respectively, and make main battery 10 and boosting battery 40 be the circuit kenel of parallel operation, therefore, in main battery 10 for some reason by low-voltage by device 30 protection by supplying power to two electric power output lines 201 and at 202 o'clock, this boosting battery 40 still can be kept electric power and export two electric power output lines 201 and 202 to;
The connection relation position that the above is each main member of the present invention and circuit is described in detail as follows its user mode now:
Please consult Fig. 1, shown in Figure 2 again, the technology of the present invention is when if to be applied to electricity needs be 12 volts vehicle, and then all can to select output voltage for use be 12 volts battery for this main battery 10 and boosting battery 40; And but this low-voltage is more than 12 volts by device 30 selection work voltages, and end operating voltage for being lower than nine volts, that is, when main battery 10 terminal voltages are 12 volts, but low-voltage is by device 30 normal operations, when main battery 10 terminal voltages were lower than nine volts, this low-voltage was promptly ended and the power supply binding of cut-out main battery 10 and two electric power output lines 201 and 202 by device 30;
With this, when unusual condition or excessively power supply (deep discharge) appear in vehicle load 50, and cause the terminal voltage of main battery 10 to reduce, and when main battery 10 terminal voltages are reduced to nine volts of cut-ff voltages, to impel low-voltage to end device 30 starts, the power supply of blocking between main battery 10 and two electric power output lines 201 and 202 connects; At this moment, 40 of boosting batteries still can be kept power supply and export two electric power output lines 201 and 202 to, and the electronic system even load 50 proper electric power normal operations that must pass through boosting battery 40 in the vehicle;
The reason of reducing to cut-ff voltage owing to the terminal voltage value of main battery 10 unusually may be quite a lot of, through low-voltage by device 30 block protection after, can avoid main battery 10 to continue to be caused the battery that can't recover to damage, save the higher main battery 10 of cost from damage by deep discharge; Boosting battery 40 in this case is not then specially established low-voltage by device 30, makes the still sustainable power supply of boosting battery 40 give the interior electronic equipment of car.
Claims (3)
1. apparatus for protection of secondary battery that can maintain power supply is characterized in that it mainly comprises:
One main battery can be powered and be given load, as main supply of electric power source;
Two electric power output lines are done electrically to connect with the main battery output, make the main battery can be from two electric power output line output powers;
One low-voltage is by device, and two ends electrically connect with an electric power output line and main battery respectively, and makes low-voltage end device and main battery is the series circuit kenel;
One boosting battery, its two output are done electrically to connect with two electric power output lines respectively, make main battery and boosting battery can be the circuit kenel of parallel operation by two electric power output lines; By this, in the main battery output end voltage be lower than low-voltage by device when the start voltage, main battery can be cut off by device by low-voltage and stop power supply, boosting battery then still can be kept electric power and export two electric power output line and loads to.
2. the apparatus for protection of secondary battery that maintains power supply according to claim 1 is characterized in that: main battery can be made of lithium secondary battery, and boosting battery then is made of lead-acid battery.
3. the apparatus for protection of secondary battery that maintains power supply according to claim 1 is characterized in that: low-voltage can constitute by the long-pending diode of receiving by device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510130539 CN1983755A (en) | 2005-12-14 | 2005-12-14 | Secondary battery protector with persistent supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510130539 CN1983755A (en) | 2005-12-14 | 2005-12-14 | Secondary battery protector with persistent supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1983755A true CN1983755A (en) | 2007-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510130539 Pending CN1983755A (en) | 2005-12-14 | 2005-12-14 | Secondary battery protector with persistent supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1983755A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011097979A1 (en) * | 2010-02-10 | 2011-08-18 | 西安锐信科技有限公司 | Method, device and system for supplying power from storage battery |
| CN107546735A (en) * | 2016-06-29 | 2018-01-05 | 法雷奥电机控制系统公司 | For being connected to the electric system of two power supplys and electric equipment including the electric system |
-
2005
- 2005-12-14 CN CN 200510130539 patent/CN1983755A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011097979A1 (en) * | 2010-02-10 | 2011-08-18 | 西安锐信科技有限公司 | Method, device and system for supplying power from storage battery |
| CN107546735A (en) * | 2016-06-29 | 2018-01-05 | 法雷奥电机控制系统公司 | For being connected to the electric system of two power supplys and electric equipment including the electric system |
| CN107546735B (en) * | 2016-06-29 | 2023-10-27 | 法雷奥电机控制系统公司 | Electrical system for connecting to two power sources and electrical apparatus comprising such an electrical system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |