CN201656524U - Lithium-powered battery pack of electric automobile - Google Patents
Lithium-powered battery pack of electric automobile Download PDFInfo
- Publication number
- CN201656524U CN201656524U CN2010201723857U CN201020172385U CN201656524U CN 201656524 U CN201656524 U CN 201656524U CN 2010201723857 U CN2010201723857 U CN 2010201723857U CN 201020172385 U CN201020172385 U CN 201020172385U CN 201656524 U CN201656524 U CN 201656524U
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- battery pack
- power battery
- lithium
- electric automobile
- lithium power
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Abstract
The utility model discloses a lithium-powered battery pack of an electric automobile, comprising a plurality of low-voltage lithium-powered battery packs and relays which are in the normally-open state; the low-voltage lithium-powered battery pack consists of a plurality of single lithium batteries connected in series and in parallel; the low-voltage lithium-powered battery packs are connected by the relay to be the lithium-powered battery pack of the electric automobile; the lithium-powered battery pack of the electric automobile further comprises a plurality of interval pulse balanced chargers, a three-phase four-wire air switch and a charging plug assembly; the low-voltage lithium-powered battery pack is correspondingly connected with the interval pulse balanced charger through the charging plug assembly; and the interval pulse balanced charger is connected to a power supply through the three-phase four-wire air switch. The utility model completely solves the problems of poor safety, short service life, frequent battery combustion or even serious accidents such as explosion, and provides safe and efficient power source with long service life for the automobiles.
Description
Technical field
The utility model relates to a kind of new forms of energy power-equipment, specifically, relates to a kind of electric automobile lithium power battery pack.
Background technology
Because the deterioration of global climate and environment, people are vigorously advocating energy-conservation and environmental protection.Under this background, electric automobile becomes the focus that people pay close attention to, and its development is imperative.Lithium power battery pack has high voltage, high-energy-density, high-specific-power, low self-discharge rate because of it and has the advantages that other alkaline batteries such as serviceability temperature scope of broad can't be comparable, thereby is used as power source, is widely used in electric automobile.Electric automobile is very high to the requirement of lithium power battery pack, is embodied in: 1, need big capacity; 2, use is connected in a large number and is connected in parallel; 3, work under bad environment is meant that mainly road jolts and radiating condition is limited etc.Therefore, the lithium dynamical battery technology become electric automobile can commercial key.
At present, the poor stability of employed lithium power battery pack on the electric automobile, useful life are short, and the battery burning frequently takes place, even serious accident such as blast.The reason that this problem occurs is: initial capacity, heating and self discharge etc. between the monomer lithium dynamical battery of composition lithium power battery pack are incomplete same, this difference can cause the gap of actual capacity, occur overcharging and overdischarge and the low more battery of capacity is in use easy more, capacity attenuation is serious more, show positive feedback, the consistency of battery also worse and worse.
In order to make the electric automobile lithium power battery pack reach balanced, packed battery management system all on the traditional electric automobile, each lithium dynamical battery of lithium power battery pack all is equipped with balance plate.But during actual the use, this management system can only show the voltage of each battery, and close lithium power battery pack in overvoltage with when under-voltage, cause the electric automobile during traveling mileage to shorten greatly, and electric automobile stop also to have promoted the generation probability of traffic accident under steam suddenly because of running out of steam.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, and a kind of safe, efficient, electric automobile lithium power battery pack that can guarantee to discharge and recharge between single battery unanimity and long service life is provided.
For addressing the above problem, the technical scheme that the utility model adopted is:
A kind of electric automobile lithium power battery pack is characterized in that: comprise several low voltage lithium power battery pack and the relay of being controlled by the driving switch of electric motor car, relay all is a normally open; Described low voltage lithium power battery pack adds mode in parallel by some single lithium battery series connection and forms; The low voltage lithium power battery pack connects by relay becomes the electric automobile lithium power battery pack;
Described electric automobile lithium power battery pack also comprises several intermittent pulse equalizing chargers of giving the charging of low voltage lithium power battery pack, three-phase and four-line air switch and charging connector assembly; The low voltage lithium power battery pack connects one to one by charging connector assembly and intermittent pulse equalizing charger; The intermittent pulse equalizing charger is by three-phase and four-line air switch energized.
Owing to adopted technique scheme, electric automobile lithium power battery pack described in the utility model guarantees there is not temperature rise in charging process, each single lithium dynamical battery can both be full of and reach the index of dispatching from the factory at every turn, every performance index of electric automobile lithium power battery pack remain on the design objective for a long time, it is short just thoroughly to have solved poor stability, useful life, the frequent battery that takes place burns, even the problem of serious accident such as blast, the source of the power of safety, efficient, long service life is provided for electric automobile.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing is the structural representation of electric automobile lithium power battery pack among the embodiment of the present utility model.
Among the figure: 1-low voltage lithium power battery pack; The 2-relay; The 3-connector assembly that charges; 4-intermittent pulse equalizing charger; 5-three-phase and four-line air switch; The 6-power supply.
Embodiment
A kind of electric automobile lithium power battery pack as shown in drawings, comprises several low voltage lithium power battery pack 1 and the relay of being controlled by the driving switch of electric motor car 2, and relay 2 all is a normally open; Described low voltage lithium power battery pack 1 adds mode in parallel by some single lithium battery series connection and forms; Low voltage lithium power battery pack 1 connects by relay 2 becomes described electric automobile lithium power battery pack;
Described electric automobile lithium power battery pack also comprises several intermittent pulse equalizing chargers 4 of giving 1 charging of low voltage lithium power battery pack, three-phase and four-line air switch 5 and charging connector assembly 3; Low voltage lithium power battery pack 1 connects one to one with intermittent pulse equalizing charger 4 by charging connector assembly 3; Intermittent pulse equalizing charger 4 is by three-phase and four-line air switch 5 energized 6.
Next, the using method to above-mentioned electric automobile lithium power battery pack is summarized as follows:
This using method comprises assembly program and charging procedure, wherein:
Described assembly program comprises the following steps:
A1, select several voltages at single the lithium battery of 3.2V-4V by voltage and capacity combo, according to electric automobile the requirement of lithium power battery pack voltage, capacity is added mode in parallel by series connection and forms low voltage lithium power battery pack 1;
A2, several low voltage lithium power battery pack 1 are connected into described electric automobile lithium power battery pack by the relay 2 by the control of the driving switch of electric motor car;
Described charging procedure comprises the following steps:
B1, described low voltage lithium power battery pack 1 is connected one to one with intermittent pulse equalizing charger 4 by charging connector assembly 3;
B2, the maximum charging voltage of each single battery of low voltage lithium power battery pack 1 is turned down 0.2V, and, set the maximum limit flow valuve and the constant voltage value of described intermittent pulse equalizing charger 4 by battery capacity and performance;
B3, described intermittent pulse equalizing charger 4 charge to the constant voltage values of setting by three-phase and four-line air switch 5 energized 6 to low voltage lithium power battery pack 1.In this step, the charge frequency of intermittent pulse equalizing charger 4 is set according to the capacity and the temperature rise situation of low voltage lithium power battery pack 1.Under constant charging voltage, when charging current progressively dropped between the 0.5A-5A, described intermittent pulse equalizing charger 4 changed the intermittent pulse charging automatically over to.
Claims (1)
1. electric automobile lithium power battery pack is characterized in that: comprise several low voltage lithium power battery pack (1) and by the relay (2) of the driving switch control of electric motor car, relay (2) all is a normally open; Described low voltage lithium power battery pack (1) adds mode in parallel by some single lithium battery series connection and forms; Low voltage lithium power battery pack (1) connects by relay (2) becomes described electric automobile lithium power battery pack;
Described electric automobile lithium power battery pack also comprises several intermittent pulse equalizing chargers (4) of giving low voltage lithium power battery pack (1) charging, three-phase and four-line air switch (5) and charging connector assembly (3); Low voltage lithium power battery pack (1) connects one to one by charging connector assembly (3) and intermittent pulse equalizing charger (4); Intermittent pulse equalizing charger (4) is by three-phase and four-line air switch (5) energized (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201723857U CN201656524U (en) | 2010-04-28 | 2010-04-28 | Lithium-powered battery pack of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201723857U CN201656524U (en) | 2010-04-28 | 2010-04-28 | Lithium-powered battery pack of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656524U true CN201656524U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201723857U Expired - Fee Related CN201656524U (en) | 2010-04-28 | 2010-04-28 | Lithium-powered battery pack of electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN201656524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826743A (en) * | 2010-04-28 | 2010-09-08 | 陈跃明 | Lithium power battery pack for electric automobile |
| CN107672545A (en) * | 2017-09-27 | 2018-02-09 | 陈友钦 | A kind of lithium ion battery automobile dual-power module |
-
2010
- 2010-04-28 CN CN2010201723857U patent/CN201656524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826743A (en) * | 2010-04-28 | 2010-09-08 | 陈跃明 | Lithium power battery pack for electric automobile |
| CN107672545A (en) * | 2017-09-27 | 2018-02-09 | 陈友钦 | A kind of lithium ion battery automobile dual-power module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120428 |