CN205297809U - System for utilize lithium ion capacitor starting apparatus combustion engine - Google Patents
System for utilize lithium ion capacitor starting apparatus combustion engine Download PDFInfo
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- CN205297809U CN205297809U CN201520954207.2U CN201520954207U CN205297809U CN 205297809 U CN205297809 U CN 205297809U CN 201520954207 U CN201520954207 U CN 201520954207U CN 205297809 U CN205297809 U CN 205297809U
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Abstract
The utility model discloses a system for utilize lithium ion capacitor starting apparatus combustion engine, this system mainly includes: the starting contactor that can communicate internal -combustion engine starting circuit, can drive the internal -combustion engine operation during start -up accomplishes to starting to it self lasts the operation and the starter -generator of electricity generation to drive at internal -combustion engine normal operation in -process, can carry out the high -power power supply to the starter -generator during start -up to the lithium ion capacitor who is undertaken charging by the starter -generator that generates electricity after starting the completion organizes, knife switch, lithium ion capacitor group connects the instrument through this knife switch, and this knife switch can communicate lithium ion capacitor group and starting contactor. Because lithium ion capacitor has high power density, consequently satisfying under the same internal -combustion engine entry condition, required lithium ion capacitor's volume still less makes power module's the lighter volume of weight littleer, simultaneously, because lithium ion capacitor has high reliability and high security, long life consequently can be non -maintaining.
Description
Technical field
This utility model relates to a kind of system utilizing lithium-ion capacitor to start internal combustion engine.
Background technology
The startability of diesel locomotive is the committed step of its unit normal operation, and the startup of traditional internal combustion engine, adopt lead-acid battery to start power supply as it more, but its internal direct current internal resistance with ambient temperature and use environment change and produce change, during particularly in less than-20 DEG C, there is cycle life difference, high temperature performance is poor, charge and discharge process is sensitive, deep discharge performance capability recovers the problems such as difficulty, environmental pollution, and therefore lead-acid accumulator is necessary for changing after using 1 year.
In normal conditions of use, starter when the immediate current started is to run well several times of rated current, so causing that lead-acid accumulator instantaneous voltage declines to a great extent, degradation. And lead-acid battery is longer as starting power supply charging required time after energy uses; And lead-acid battery cannot use need discarded time, the environmental pollution such as heavy metal lead is serious, limits the application of lead-acid battery.
In recent years, the lithium ion battery grown up, although relatively lead-acid battery has clean energy-saving, energy density advantages of higher, but especially still there is the shortcomings such as high-power charging performance is poor, service life is short, as the startup power supply (such as US2014/0299089Al) of internal combustion engine, the technological deficiency that lead-acid battery is intrinsic still cannot be overcome.
Ultracapacitor is a kind of Novel energy storage apparatus, the feature such as it has, and the charging interval is short, long service life, power density big, good temp characteristic, the saving energy and environmental protection. There is not chemical reaction in super capacitor, this thermal energy storage process is reversible in the process of its energy storage, and therefore its low-temperature characteristics is good, is operable with in the environment of subzero 30 DEG C Celsius.
Such as patent CN102235288B, CN102182605A, CN201679606U, CN202429148U etc., in order to extend the service life of lead-acid battery, compensating its defect, people are by used in parallel to super capacitor module and lead-acid accumulator, and when internal combustion engine start, ultracapacitor and lead-acid accumulator are powered simultaneously. The momentary high power utilizing ultracapacitor is powered, it is possible to make up the lead-acid accumulator deficiency when starting.
The operating current when operating current of lead-acid battery as shown in figure 1 and 2-running voltage curve and capacitor and lead-acid battery associated working-running voltage curve (source: " diesel locomotive ", 9th phase in 2000, capacitor with super capacity plays the application of disorder of internal organs, Xue Hongfa at diesel locomotive). It appeared that the electric current of entirety and power substantially rise, from the current reduction that lead-acid battery flows out, its voltage drop reduces, and effectively protects lead-acid battery.
But the self discharge of ultracapacitor own is very serious, therefore it is without electricity in a non-operative state. When needs start internal combustion engine, it is necessary first to 1 ~ 2min time, its charging is reached startup voltage, then electric discharge makes internal combustion engine start. Additionally after internal combustion engine start, the remaining electricity of ultracapacitor can be slatterned by the self discharge of itself, as shown in Figure 3 (source: " electric drive for locomotive ", the 2nd phase in 2002, capacitor with super capacity is utilized to improve the electric startup performance of diesel locomotive diesel generating set, Li Kai).
Utility model content
Technical problem to be solved in the utility model is to provide a kind of system utilizing lithium-ion capacitor to start internal combustion engine, to improve internal combustion engine start performance.
Lithium-ion capacitor adopts lithium ion battery and ultracapacitor mixed structure, positive pole adopts activated carbon, negative pole adopts the materials such as graphite, has the characteristic of the high-power output (its power density is much larger than lead-acid accumulator) of ultracapacitor, long-life characteristics and lithium ion battery high-energy-density concurrently. Itself having significantly high voltage holding capability, room temperature 25 DEG C is placed 3 months, and voltage declines��5%; The safety in operation of wide use temperature range (-40 DEG C ~ 70 DEG C), reliability.
Therefore, namely system of the present utility model make use of lithium-ion capacitor to start internal combustion engine, specifically includes that
The starting contactor of internal combustion engine start circuit can be connected;
Internal combustion engine operation can be driven during startup to having started, and the starter-generator driving self continuous running in internal combustion engine normal operation and generating electricity;
Starter-generator can be carried out high-power power supply the lithium-ion capacitor group being charged by the starter-generator generated electricity after having started during startup;
Knife switch, described lithium-ion capacitor group connects instrument by this knife switch, and this knife switch can connect the lithium-ion capacitor group in internal combustion engine start circuit and starting contactor.
Further, described instrument at least includes voltmeter, also includes some such as display lamp, ammeter etc.
Further, described instrument is arranged in diesel locomotive operating room, it is simple to observes and uses.
Further, this system also includes the ground charger for lithium-ion capacitor group can carry out quick charge, when lithium-ion capacitor group voltage is unsatisfactory for entry condition, namely by this ground charger, lithium-ion capacitor group is carried out quick charge.
This utility model needs first to close knife switch before opening internal combustion engine, and checks voltmeter numerical value.Being then turned on starting contactor, namely starter-generator is carried out high-power power supply by lithium-ion capacitor group, makes starter-generator operate. Starter-generator operating then drives internal combustion engine operation, makes internal combustion engine be rapidly reached ignition point rotating speed, enters and run well, and now internal combustion engine start completes. Internal combustion engine normal operation can drive starter-generator continuous running, make starter-generator generating and lithium-ion capacitor group is charged, after lithium-ion capacitor group reaches rated voltage, it being carried out floating charge, until internal combustion engine shuts down. When internal combustion engine needs to shut down, closing starting contactor, internal combustion engine shuts down, and starter-generator stops generating. After startup terminates, open knife switch, make lithium-ion capacitor in the raw, treat internal combustion engine start next time.
Due to the high voltage holding capacity of lithium-ion capacitor, high-energy-density and high power density (its power density is much larger than the power density of lead-acid accumulator), the wide characteristic using the safety in operation of temperature range, reliability, lead-acid accumulator can be substituted completely and be directly used in startup internal combustion engine, but also compensate for the having a strong impact on accumulator itself of transient high-current when lead-acid accumulator is opened, compensate for its low temperature and use restriction. And the energy bigger than lead-acid battery and power can be provided, greatly improve the start-up course of diesel engine, reduce the mechanical wear of diesel engine, save fuel oil.
Owing to lithium-ion capacitor has the power density far above accumulator, therefore when meeting identical internal combustion engine start, the amount of required lithium-ion capacitor is less, and the lighter volume of weight making supply module is less; Lithium-ion capacitor has high power density, high voltage holding capacity, width temperature stabilization use scope, it is possible to make up the defect of accumulator thus being substituted; Simultaneously as lithium-ion capacitor has high reliability and a high security, the long life, therefore can be non-maintaining.
Accompanying drawing explanation
Electric current and select battery-end corrugating figure when Fig. 1 is for adopting lead-acid accumulator;
Starting current when Fig. 2 is adopt capacitor and lead-acid accumulator associated working, voltage oscillogram;
Fig. 3 is that capacitor with super capacity electrically activates the schematic circuit of auxiliary device as diesel locomotive;
Fig. 4 is schematic circuit of the present utility model.
In Fig. 3: XDC-accumulator battery; XK-accumulator plug-in strip; QC-starting contactor; MG-starter-generator; C-capacitor with super capacity group; VD-diode; VT-IGCT; R-charging current limiter resistance; QBC-starts pump catalyst;
In Fig. 4: MG: starter-generator; QC: starting contactor; XK: knife switch; LIC: lithium-ion capacitor group.
Detailed description of the invention
Embodiment 1: this utility model utilizes lithium-ion capacitor to start the system of internal combustion engine, and schematic circuit as shown in Figure 4, specifically includes that
The starting contactor QC of internal combustion engine start circuit can be connected;
Internal combustion engine operation can be driven during startup to having started, and the starter-generator MG driving self continuous running in internal combustion engine normal operation and generating electricity;
Starter-generator MG can be carried out high-power power supply during startup, and after having started by the starter-generator MG generated electricity to its lithium-ion capacitor group LIC being charged.
In order to the voltage of monitoring lithium-ion capacitor group LIC, system of the present utility model is additionally provided with a knife switch XK, lithium-ion capacitor group LIC connects instrument by this knife switch XK, instrument is including at least there being voltmeter, for monitoring the voltage of lithium-ion capacitor group LIC, if meet entry condition;Simultaneously also can comprising other components and parts such as display lamp, the instrument such as this described voltmeter is arranged in diesel locomotive operating room; It addition, this knife switch XK also plays a part the lithium-ion capacitor group LIC in connection internal combustion engine start circuit and starting contactor QC.
The startup of internal combustion engine is controlled process by system described in the utility model:
First Guan Bi knife switch XK, checks the numerical value of the voltmeter connecting lithium-ion capacitor group LIC, if meet entry condition. If being unsatisfactory for, needing ground charger that lithium-ion capacitor group LIC carries out quick charge, but this situation substantially only just can be able to occur under the premise that the diesel locomotive several months does not use. After knife switch XK Guan Bi, the instrument in operating room, display lamp even load also can be powered by lithium-ion capacitor module LIC simultaneously.
Open starting contactor QC, make lithium-ion capacitor group LIC that starter-generator MG is carried out powerful power supply so that it is the electric energy from lithium-ion capacitor group LIC (is transferred to the kinetic energy driving internal combustion engine operation) by operating. Starter-generator MG operating then drives internal combustion engine operation, makes internal combustion engine be rapidly reached ignition point rotating speed, enters and run well, and now internal combustion engine start completes. Internal combustion engine normal operation can drive starter-generator MG continuous running, make starter-generator MG generating and lithium-ion capacitor group LIC is charged that (kinetic energy that internal-combustion engine drives starts electromotor MG transfers electric energy to, it it is lithium-ion capacitor group LIC charging simultaneously, lithium-ion capacitor group LIC stores the starter-generator MG high voltage energy produced), after lithium-ion capacitor group LIC reaches rated voltage, it is carried out floating charge, until internal combustion engine shuts down. It is in lithium-ion capacitor module LIC charging process at starter-generator, comes from the electric energy of starter-generator for the instrument of operating room in diesel locomotive and the electric energy of display lamp even load offer.
When internal combustion engine needs to shut down, close starting contactor QC; Internal combustion engine shuts down, and starter-generator MG stops generating, no longer lithium-ion capacitor group LIC is charged. Opening knife switch XK, now lithium-ion capacitor LIC and system thoroughly disconnect, and in the raw, treat internal combustion engine start next time.
Claims (4)
1. one kind utilizes the system that lithium-ion capacitor starts internal combustion engine, it is characterised in that this system specifically includes that
The starting contactor of internal combustion engine start circuit can be connected;
Internal combustion engine operation can be driven during startup to having started, and the starter-generator driving self continuous running in internal combustion engine normal operation and generating electricity;
Starter-generator can be carried out high-power power supply the lithium-ion capacitor group being charged by the starter-generator generated electricity after having started during startup;
Knife switch, described lithium-ion capacitor group connects instrument by this knife switch, and this knife switch can connect the lithium-ion capacitor group in internal combustion engine start circuit and starting contactor.
2. the system utilizing lithium-ion capacitor to start internal combustion engine according to claim 1, it is characterised in that: described instrument at least includes voltmeter.
3. the system utilizing lithium-ion capacitor to start internal combustion engine according to claim 2, it is characterised in that: described instrument is arranged in diesel locomotive operating room.
4. the system utilizing lithium-ion capacitor to start internal combustion engine according to claim 1, it is characterised in that: this system also includes the ground charger for lithium-ion capacitor group can carry out quick charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954207.2U CN205297809U (en) | 2015-11-25 | 2015-11-25 | System for utilize lithium ion capacitor starting apparatus combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520954207.2U CN205297809U (en) | 2015-11-25 | 2015-11-25 | System for utilize lithium ion capacitor starting apparatus combustion engine |
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| CN205297809U true CN205297809U (en) | 2016-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178934A (en) * | 2021-06-03 | 2021-07-27 | 吉林大学 | Integrated low-voltage energy storage power supply system for vehicle and control method thereof |
| CN114576059A (en) * | 2022-01-26 | 2022-06-03 | 东风汽车集团股份有限公司 | Automobile power assembly, engine starting system, method and storage medium |
-
2015
- 2015-11-25 CN CN201520954207.2U patent/CN205297809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178934A (en) * | 2021-06-03 | 2021-07-27 | 吉林大学 | Integrated low-voltage energy storage power supply system for vehicle and control method thereof |
| CN114576059A (en) * | 2022-01-26 | 2022-06-03 | 东风汽车集团股份有限公司 | Automobile power assembly, engine starting system, method and storage medium |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220615 Address after: 333000 north of Zhihang Road, high tech Zone, Changjiang District, Jingdezhen City, Jiangxi Province (within Jingdezhen Weihang Technology Co., Ltd.) Patentee after: Jiangxi Zhanxiao New Energy Technology Co.,Ltd. Address before: 201199 room C307, huilide Industrial Park, No. 1-7, Lane 1356, Xinyuan Road, Minhang District, Shanghai Patentee before: SHANGHAI CAPENERGY TECHNOLOGY Co.,Ltd. |