CN104393367A - Preheating system of automobile emergency start power supply - Google Patents
Preheating system of automobile emergency start power supply Download PDFInfo
- Publication number
- CN104393367A CN104393367A CN201310615654.0A CN201310615654A CN104393367A CN 104393367 A CN104393367 A CN 104393367A CN 201310615654 A CN201310615654 A CN 201310615654A CN 104393367 A CN104393367 A CN 104393367A
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- China
- Prior art keywords
- mos
- power supply
- mcu
- group
- conversion output
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a preheating system of an automobile emergency start power supply. The preheating system is used for preheating an automobile emergency start power supply. The preheating system is characterized in that the preheating system contains a thermosensitive temperature sensor, a heating unit and an MCU with a built-in D/A converter. Two I/O ports of the MCU are connected and cling to the thermosensitive temperature sensor on a cell. A first D/A conversion output port of the MCU is connected with a temperature warning LED indicator lamp. A second D/A conversion output port of the MCU is connected with a discharge switch for controlling discharge of the emergency start power supply. A third D/A conversion output port of the MCU is connected with a heating unit through a heating switch. The discharge switch contains two groups of four-parallel N-MOS. The second D/A conversion output port is connected with grids of the two groups of N-MOS through a drain of a first P-MOS, and a drain of a first group of N-MOS is connected with a drain of a second group of N-MOS. A source of the first group of N-MOS is grounded. A source of the second group of N-MOS is an output end of the emergency start power supply. According to the invention, the problem of high-rate discharge of various cells at low temperature can be solved.
Description
Technical field
The present invention relates to the pre-heating system that a kind of car emergency starts power supply.
Background technology
Automobile is entering into ordinary people family now in a large number, various customs in routine use may cause automobile batteries power shortage, portable vehicle starts the appearance of power supply and well solves this problem, but be doomed often to occur in the winter of cold can not regular picture igniting shape for the intrinsic discharge and recharge temperature characterisitic of lithium electricity
State, main cause is that the internal resistance under low-temperature condition of lithium electricity uprises, the cause that output current declines, now proposing a kind of preheating technology can allow emergency starting power supply enter best discharge condition fast under low-temperature condition, and this technology can solve the problem of various battery large multiplying power discharging under low-temperature condition.
Summary of the invention
The object of this invention is to provide the pre-heating system that a kind of car emergency starts power supply.
To achieve these goals, technical scheme provided by the invention is: provide a kind of car emergency to start the pre-heating system of power supply, preheating is carried out for starting power supply to car emergency, it comprises: thermally sensitive temperature transducer, heating unit, the MCU of built-in D/A converter, the two-way I/O mouth of described MCU connects the thermally sensitive temperature transducer be close in battery, the one D/A conversion output mouth of described MCU is connected with warning temperature LED light, the 2nd D/A conversion output mouth of described MCU is connected with the discharge switch for controlling emergency starting corona discharge, the 3rd D/A conversion output mouth of described MCU is connected with described heating unit by described heater switch, described discharge switch comprises two groups of every four N-MOS(Q1-Q4 and Q5-Q8 in parallel), described 2nd D/A changes delivery outlet (PB2) by a P-MOS(Q10) drain electrode connect the grid of N-MOS described in two groups, and the drain electrode of first group of N-MOS is connected with the drain electrode of second group of N-MOS, the source ground of first group of N-MOS, the source electrode of second group of N-MOS is the output of emergency starting power supply.
Described heater switch is the 2nd P-MOS, and described 3rd D/A conversion output mouth is connected with the grid of described 2nd P-MOS, and the source electrode of described 2nd P-MOS is connected with described heating unit, the grounded drain of described 2nd P-MOS.
Described heating unit is resistance heater.
The resistance of described thermally sensitive temperature transducer is 10K, B value is 3435K.
Compared with prior art, car emergency of the present invention starts in the pre-heating system of power supply, owing to have employed described thermally sensitive temperature transducer and heating unit, temperature as emergency starting power supply is normal, instruction green light, power supply is directly opened power supply and is exported, and can be directly used in automotive ignition operation; It is lower that as red in indicator light display and flicker represents battery temperature, power supply does not reach large multiplying power discharging requirement, at this moment pre-heating system heats the battery of power supply automatically, this process need number minute, green light is turned etc. the battery temperature rear indicator light that gets on, represent battery to rise again rising, entered optimal discharge state and then directly can carry out sparking initiating task.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the workflow block diagram that car emergency of the present invention starts the pre-heating system of power supply.
Fig. 2 is the circuit theory diagrams that car emergency of the present invention starts the pre-heating system of power supply.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, element numbers similar in accompanying drawing represents similar element.As mentioned above, as Fig. 1, shown in 2, this car emergency starts the pre-heating system of power supply, battery for starting power supply to car emergency carries out preheating, it comprises: thermally sensitive temperature transducer (NTC1, NTC2), heating unit (L1, L2), the MCU(HT46R064B of built-in D/A converter), the two-way I/O mouth (PA2 with PA3) of described MCU is connected the thermally sensitive temperature transducer be close in battery, the one D/A conversion output mouth (PB1) of described MCU is connected with warning temperature LED light (LED1), the 2nd D/A conversion output mouth (PB2) of described MCU is connected with the discharge switch for controlling emergency starting corona discharge, the 3rd D/A conversion output mouth (PB3) of described MCU is connected with described heating unit by described heater switch, described discharge switch comprises two groups of every four N-MOS(Q1-Q4 and Q5-Q8 in parallel), described 2nd D/A changes delivery outlet (PB2) by a P-MOS(Q10) drain electrode connect the grid of N-MOS described in two groups, and the drain electrode of first group of N-MOS is connected with the drain electrode of second group of N-MOS, the source ground of first group of N-MOS, the source electrode of second group of N-MOS is the output of emergency starting power supply.
Described heater switch is the 2nd P-MOS(Q9), described 3rd D/A conversion output mouth (PB3) and described 2nd P-MOS(Q9) grid be connected, described 2nd P-MOS(Q9) source electrode be connected with described heating unit, described 2nd P-MOS(Q9) grounded drain.
Described heating unit is resistance heater.
The resistance of described thermally sensitive temperature transducer is 10K, B value is 3435K.
The operation principle of circuit theory diagrams as described in Figure 2:
1: when pressing the startup work of SW1 Switching Power Supply, MCU is as lower in battery temperature detected, do not reach optimal discharge state, the one D/A conversion output mouth PB1 of MCU exports interval high level, warning temperature LED light (LED1) is glimmered, represent that battery temperature is too low, the 2nd D/A conversion output mouth PB2 of MCU exports high level, the driving of output switch (Q1-Q4 and Q5-Q8) is disconnected by a P-MOS (Q10), power remove exports, the 3rd PB3 output low level of MCU, drive the 2nd P-MOSQ9 conducting, L1 and L2 starts heating, battery is heated.When after temperature recovery to normal temperature, PB1 output low level, warning temperature LED light is extinguished, PB3 exports high level, L1 and L2 heats stopping, and PB2 output low level drives a P-MOS to open discharge switch (Q1-Q4 and Q5-Q8), and battery enters operating state.
2: when pressing SW1 Switching Power Supply startup work, battery temperature is normal as detected for MCU, then PB1 output low level, and PB3 exports high level, PB2 output low level drives a P-MOS to open discharge switch (Q1-Q4 and Q5-Q8), and battery directly enters operating state.
In conjunction with Fig. 1 and 2, car emergency of the present invention starts in the pre-heating system of power supply, owing to have employed described thermally sensitive temperature transducer and heating unit, temperature as emergency starting power supply is normal, instruction green light, power supply is directly opened power supply and is exported, and can be directly used in automotive ignition operation; It is lower that as red in indicator light display and flicker represents battery temperature, power supply does not reach large multiplying power discharging requirement, at this moment pre-heating system heats the battery of power supply automatically, this process need number minute, green light is turned etc. the battery temperature rear indicator light that gets on, represent battery to rise again rising, entered optimal discharge state and then directly can carry out sparking initiating task.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (4)
1. the pre-heating system of a car emergency startup power supply, preheating is carried out for starting power supply to car emergency, it is characterized in that, comprise: thermally sensitive temperature transducer, heating unit, the MCU of built-in D/A converter, the two-way I/O mouth of described MCU connects the thermally sensitive temperature transducer be close in battery, the one D/A conversion output mouth of described MCU is connected with warning temperature LED light, the 2nd D/A conversion output mouth of described MCU is connected with the discharge switch for controlling emergency starting corona discharge, the 3rd D/A conversion output mouth of described MCU is connected with described heating unit by heater switch, described discharge switch comprises two groups of every four N-MOS in parallel, described 2nd D/A changes delivery outlet connects N-MOS described in two groups grid by the drain electrode of a P-MOS, and the drain electrode of first group of N-MOS is connected with the drain electrode of second group of N-MOS, the source ground of first group of N-MOS, the source electrode of second group of N-MOS is the output of emergency starting power supply.
2. car emergency as claimed in claim 1 starts the pre-heating system of power supply, it is characterized in that: described heater switch is the 2nd P-MOS, described 3rd D/A conversion output mouth is connected with the grid of described 2nd P-MOS, the source electrode of described 2nd P-MOS is connected with described heating unit, the grounded drain of described 2nd P-MOS.
3. car emergency as claimed in claim 1 or 2 starts the pre-heating system of power supply, it is characterized in that: the resistance of described thermally sensitive temperature transducer is 10K.
4. car emergency as claimed in claim 3 starts the pre-heating system of power supply, it is characterized in that: described heating unit is resistance heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615654.0A CN104393367A (en) | 2013-11-28 | 2013-11-28 | Preheating system of automobile emergency start power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615654.0A CN104393367A (en) | 2013-11-28 | 2013-11-28 | Preheating system of automobile emergency start power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104393367A true CN104393367A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310615654.0A Pending CN104393367A (en) | 2013-11-28 | 2013-11-28 | Preheating system of automobile emergency start power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN104393367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106655A (en) * | 2020-01-14 | 2020-05-05 | 深圳市本荣科技有限公司 | Automobile emergency starting power supply with preheating function |
| CN113394486A (en) * | 2021-05-28 | 2021-09-14 | 上海广为美线电源电器有限公司 | Emergency starting power supply preheating control system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201985213U (en) * | 2011-03-18 | 2011-09-21 | 华霆（合肥）动力技术有限公司 | Low-temperature preheating system of battery of electric automobile |
| CN202798083U (en) * | 2012-09-20 | 2013-03-13 | 上海广为美线电源电器有限公司 | Low-temperature self-heating lithium battery emergency start power supply |
| CN203278304U (en) * | 2013-04-28 | 2013-11-06 | 杭州阳光工具有限公司 | Lithium iron phosphate emergency power supply with preheating function |
| CN203660017U (en) * | 2013-11-28 | 2014-06-18 | 东莞市云帆电子科技有限公司 | Preheating system of automobile emergency start power source |
-
2013
- 2013-11-28 CN CN201310615654.0A patent/CN104393367A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201985213U (en) * | 2011-03-18 | 2011-09-21 | 华霆（合肥）动力技术有限公司 | Low-temperature preheating system of battery of electric automobile |
| CN202798083U (en) * | 2012-09-20 | 2013-03-13 | 上海广为美线电源电器有限公司 | Low-temperature self-heating lithium battery emergency start power supply |
| CN203278304U (en) * | 2013-04-28 | 2013-11-06 | 杭州阳光工具有限公司 | Lithium iron phosphate emergency power supply with preheating function |
| CN203660017U (en) * | 2013-11-28 | 2014-06-18 | 东莞市云帆电子科技有限公司 | Preheating system of automobile emergency start power source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106655A (en) * | 2020-01-14 | 2020-05-05 | 深圳市本荣科技有限公司 | Automobile emergency starting power supply with preheating function |
| CN113394486A (en) * | 2021-05-28 | 2021-09-14 | 上海广为美线电源电器有限公司 | Emergency starting power supply preheating control system and method |
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Application publication date: 20150304 |