CN201752078U - Charging tube management system of energy transfer way of multi lithium ion battery set - Google Patents
Charging tube management system of energy transfer way of multi lithium ion battery set Download PDFInfo
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- CN201752078U CN201752078U CN2010202515387U CN201020251538U CN201752078U CN 201752078 U CN201752078 U CN 201752078U CN 2010202515387 U CN2010202515387 U CN 2010202515387U CN 201020251538 U CN201020251538 U CN 201020251538U CN 201752078 U CN201752078 U CN 201752078U
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Abstract
The utility model discloses a charging tube management system of energy transfer way of the multi lithium ion battery set, comprising a single-chip microcomputer, a reference power supply, a charging control circuit and an energy transfer transformer, wherein the reference voltage AD sampling I/O port of the single-chip microcomputer is connected with the reference power supply and many battery voltage AD sampling I/O ports of the single-chip microcomputer are connected with two electrodes of the battery in the battery set in turn; a voltage input end of the charging control circuit is connected with the charging power supply, and a control input end of the charging control circuit is connected with the single-chip microcomputer, a voltage output end of the charging control circuit is connected with a high pressure end of the battery set; many input ends of the primary winding of the energy transfer transformer are respectively connected with the two electrodes of each battery in the battery set by one equivalent switch and a secondary winding of the energy transfer transformer is connected with a load. Each battery is charged full but not over full and the capacity of the battery set is effectively increased and the service life of the battery is prolonged.
Description
[technical field]
The utility model relates to a kind of charging management system of multi-section lithium ion battery pack power branch mode.
[background technology]
During the charging of lithium ion battery group, the individual performance difference of Chang Yinwei single-unit, and cause overcharged also not being full of of having, often be starkly lower than the monomer lithium ion battery like this useful life of lithium ion battery group, therefore, must carry out the mutual equilibrium between every batteries and the management of charging modes such as charging current, voltage.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, provides a kind of and can guarantee that every batteries is full of and can not overcharges, and can effectively increase battery capacity, prolong the charging management system of the multi-section lithium ion battery pack power branch mode in battery useful life.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of charging management system of multi-section lithium ion battery pack power branch mode includes single-chip microcomputer 1, reference power supply 2, and charging control circuit 3, energy shifts transformer 4; The reference voltage AD sampled I/O port of described single-chip microcomputer 1 is connected with reference power supply 2, and a plurality of cell voltage AD sampled I/O port of described single-chip microcomputer 1 is connected on the two poles of the earth of each battery in the battery pack in turn; The voltage input end of described charging control circuit 3 is connected with charge power supply, the control input end of described charging control circuit 3 is connected with a pwm signal output I/O port of single-chip microcomputer 1, and the voltage output end of described charging control circuit 3 is connected with the high-pressure side of battery pack; The elementary winding that described energy shifts transformer 4 has a plurality of inputs, by being connected in turn on the two poles of the earth of each battery in the battery pack behind the equivalent switch K by single-chip microcomputer 1 control, the secondary winding that described energy shifts transformer 4 is connected with load these inputs respectively.
Compared with prior art, the beneficial effects of the utility model are:
The charging modes that 1, equalizing system is not relatively arranged, this kind have charging management system that energy shifts balanced way can guarantee that every batteries is full of and can not overcharges, and can effectively increase battery capacity, prolong battery useful life;
2, the existing consuming type charging modes of comparing, this kind have energy, and to shift charging management system efficient height, the caloric value of balanced way little; Therefore can save high power discharge resistance and large tracts of land fin, thereby but have advantages such as smaller size smaller, the higher accuracy of equalization, shorter charging interval.
[description of drawings]
Fig. 1 is a block diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of charging control circuit of the present utility model;
Fig. 3 is the circuit theory diagrams that energy of the present utility model shifts transformer circuit;
Fig. 4 is the circuit theory diagrams of the equivalent switch of high 4 batteries use of the present utility model;
Fig. 5 is the circuit theory diagrams of the equivalent switch of low 2 batteries use of the present utility model;
Fig. 6 is the circuit theory diagrams of output reverse polarity protection circuit of the present utility model.
[embodiment]
Shown in Fig. 1-6, the utility model is a kind of charging management system of multi-section lithium ion battery pack power branch mode, includes single-chip microcomputer 1, reference power supply 2, and charging control circuit 3, energy shifts transformer 4; The reference voltage AD sampled I/O port of described single-chip microcomputer 1 is connected with reference power supply 2, and a plurality of cell voltage AD sampled I/O port of described single-chip microcomputer 1 is connected on the two poles of the earth of each battery in the battery pack in turn; The voltage input end of described charging control circuit 3 is connected with charge power supply, the control input end of described charging control circuit 3 is connected with a pwm signal output I/O port of single-chip microcomputer 1, and the voltage output end of described charging control circuit 3 is connected with the high-pressure side of battery pack; The elementary winding that described energy shifts transformer 4 has a plurality of inputs, by being connected in turn on the two poles of the earth of each battery in the battery pack behind the equivalent switch K by single-chip microcomputer 1 control, the secondary winding that described energy shifts transformer 4 is connected with load these inputs respectively.
Described load is made up of diode and electric capacity, one end of this electric capacity is connected the back by metal-oxide-semiconductor ground connection with the output that described energy shifts the secondary winding of transformer 4, the other end of electric capacity is connected with the positive pole of diode, the negative pole of diode is connected with another output that described energy shifts the secondary winding of transformer 4, and the control utmost point of described metal-oxide-semiconductor is connected with another pwm signal output I/O port of single-chip microcomputer 1.
Shift at described energy on each input of elementary winding of transformer 4 and also be provided with diode in series with equivalent switch K.
Described charging control circuit 3 includes the first comparator N3C, the second comparator N3D, the inverting input of the in-phase input end of the first comparator N3C and the second comparator N3D all is connected with the 5V power supply by resistance, the in-phase input end of the inverting input of the first comparator N3C and the second comparator N3D all is connected with a pwm signal output I/O port of described single-chip microcomputer 1, the described first comparator N3C output is connected with a metal-oxide-semiconductor, the source electrode of this metal-oxide-semiconductor is connected with described charge power supply, and the drain electrode of this metal-oxide-semiconductor is in series with inductance and diode; The output of the described second comparator N3D also is connected with the another one metal-oxide-semiconductor, the source ground of this metal-oxide-semiconductor, and the drain electrode of this metal-oxide-semiconductor is connected with the positive pole of inductance one end and diode, and the negative pole of this diode is connected with the high-pressure side of described battery pack.
Described equivalent switch is formed by connecting by a plurality of metal-oxide-semiconductors and a plurality of resistance, and one of them metal-oxide-semiconductor is connected with the I/O port of described single-chip microcomputer 1.
The model of described single-chip microcomputer 1 is D78F1166AGC.
Native system is sampled to reference voltage and every batteries voltage by the AD mouth of single-chip microcomputer, and by algorithm process, the charging voltage that guarantees every batteries is accurately between 4.215 ± 0.005; By the PWM output of control single chip computer, guarantee constant current charge, constant voltage charge and the trickle charge effect of charging process; Finish individual balancing performance between different batteries by custom transformer and equivalent switch; Can reach the above charging current of 1C, 10mA with interior equalizing voltage, higher charge efficiency and the charging interval of lacking.
Claims (6)
1. the charging management system of a multi-section lithium ion battery pack power branch mode is characterized in that including single-chip microcomputer (1), reference power supply (2), and charging control circuit (3), energy shifts transformer (4); The reference voltage AD sampled I/O port of described single-chip microcomputer (1) is connected with reference power supply (2), and a plurality of cell voltage AD sampled I/O port of described single-chip microcomputer (1) is connected on the two poles of the earth of each battery in the battery pack in turn; The voltage input end of described charging control circuit (3) is connected with charge power supply, the control input end of described charging control circuit (3) is connected with a pwm signal output I/O port of single-chip microcomputer (1), and the voltage output end of described charging control circuit (3) is connected with the high-pressure side of battery pack; The elementary winding that described energy shifts transformer (4) has a plurality of inputs, by being connected in turn on the two poles of the earth of each battery in the battery pack behind the equivalent switch (K) by single-chip microcomputer (1) control, the secondary winding that described energy shifts transformer (4) is connected with load these inputs respectively.
2. the charging management system of a kind of multi-section lithium ion battery pack power branch mode according to claim 1, it is characterized in that described load is made up of diode and electric capacity, one end of this electric capacity is connected the back by metal-oxide-semiconductor ground connection with the output that described energy shifts the secondary winding of transformer (4), the other end of electric capacity is connected with the positive pole of diode, the negative pole of diode is connected with another output that described energy shifts the secondary winding of transformer (4), and the control utmost point of described metal-oxide-semiconductor is connected with another pwm signal output I/O port of single-chip microcomputer (1).
3. the charging management system of a kind of multi-section lithium ion battery pack power branch mode according to claim 2 is characterized in that also being provided with and equivalent switch (K) diode in series on described energy shifts each input of elementary winding of transformer (4).
4. the charging management system of a kind of multi-section lithium ion battery pack power branch mode according to claim 1, it is characterized in that described charging control circuit (3) includes first comparator (N3C), second comparator (N3D), the inverting input of the in-phase input end of first comparator (N3C) and second comparator (N3D) all is connected with the 5V power supply by resistance, the in-phase input end of the inverting input of first comparator (N3C) and second comparator (N3D) all is connected with a pwm signal output I/O port of described single-chip microcomputer (1), described first comparator (N3C) output is connected with a metal-oxide-semiconductor, the source electrode of this metal-oxide-semiconductor is connected with described charge power supply, and the drain electrode of this metal-oxide-semiconductor is in series with inductance and diode; The output of described second comparator (N3D) also is connected with the another one metal-oxide-semiconductor, the source ground of this metal-oxide-semiconductor, and the drain electrode of this metal-oxide-semiconductor is connected with the positive pole of inductance one end and diode, and the negative pole of this diode is connected with the high-pressure side of described battery pack.
5. the charging management system of a kind of multi-section lithium ion battery pack power branch mode according to claim 1, it is characterized in that described equivalent switch is formed by connecting by a plurality of metal-oxide-semiconductors and a plurality of resistance, one of them metal-oxide-semiconductor is connected with the I/O port of described single-chip microcomputer (1).
6. the charging management system of a kind of multi-section lithium ion battery pack power branch mode according to claim 1, the model that it is characterized in that described single-chip microcomputer (1) is D78F1166AGC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202515387U CN201752078U (en) | 2010-06-30 | 2010-06-30 | Charging tube management system of energy transfer way of multi lithium ion battery set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202515387U CN201752078U (en) | 2010-06-30 | 2010-06-30 | Charging tube management system of energy transfer way of multi lithium ion battery set |
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| CN201752078U true CN201752078U (en) | 2011-02-23 |
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| CN2010202515387U Expired - Fee Related CN201752078U (en) | 2010-06-30 | 2010-06-30 | Charging tube management system of energy transfer way of multi lithium ion battery set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148523A (en) * | 2011-05-13 | 2011-08-10 | 上海润腾电子科技有限公司 | Energy-saving type charge and discharge control system of storage battery |
| CN102435951A (en) * | 2011-09-28 | 2012-05-02 | 四川卫士通信息安全平台技术有限公司 | Micro-power-consumption battery testing system and method |
| CN102969747A (en) * | 2011-08-31 | 2013-03-13 | 索尼公司 | Power storage apparatus and electric vehicle |
| CN111864847A (en) * | 2019-08-01 | 2020-10-30 | 成都芯源系统有限公司 | Multi-port battery charging-discharging system |
-
2010
- 2010-06-30 CN CN2010202515387U patent/CN201752078U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148523A (en) * | 2011-05-13 | 2011-08-10 | 上海润腾电子科技有限公司 | Energy-saving type charge and discharge control system of storage battery |
| CN102969747A (en) * | 2011-08-31 | 2013-03-13 | 索尼公司 | Power storage apparatus and electric vehicle |
| CN102969747B (en) * | 2011-08-31 | 2017-12-15 | 索尼公司 | Electric energy storage device and electric vehicle |
| CN102435951A (en) * | 2011-09-28 | 2012-05-02 | 四川卫士通信息安全平台技术有限公司 | Micro-power-consumption battery testing system and method |
| CN111864847A (en) * | 2019-08-01 | 2020-10-30 | 成都芯源系统有限公司 | Multi-port battery charging-discharging system |
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| Date | Code | Title | Description |
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| 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: 20110223 Termination date: 20120630 |