CN203984062U - Lithium battery frequency conversion quick-charging circuit - Google Patents
Lithium battery frequency conversion quick-charging circuit Download PDFInfo
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- CN203984062U CN203984062U CN201420358139.9U CN201420358139U CN203984062U CN 203984062 U CN203984062 U CN 203984062U CN 201420358139 U CN201420358139 U CN 201420358139U CN 203984062 U CN203984062 U CN 203984062U
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Abstract
The utility model discloses a kind of lithium battery frequency conversion quick-charging circuit, comprise ac input end, rectification circuit and a filter circuit of serial connection successively, also comprise the high-frequency impulse circuit for generating, high-frequency conversion circuit and the DC output end that connect successively, the input of described high-frequency impulse circuit for generating is connected with the output of filter circuit.The utility model adopts pulse current charge mode, improves the ability to accept of lithium battery, shortens the charging interval, increases discharge capacity, improves charge efficiency; And by the large electric current of high-frequency conversion circuit conducting, the pulse current using in the time of charge in batteries and pulse voltage, change the constant pressure and flow state in charging process, along with the variation of the voltage of lithium battery and constantly automatically regulate the size of charging current, thereby the electric energy of lithium battery is constantly supplemented, save the charging interval and improve charge efficiency, also making the lithium battery life-span further be extended.
Description
Technical field
The utility model relates to battery charger field, specifically refers to a kind of lithium battery frequency conversion quick-charging circuit.
Background technology
Lithium ion battery has that specific energy is high, voltage platform is high, has extended cycle life, operating temperature range is wide, memory-less effect, the feature such as environmentally friendly.On the various portable consuming devices of the digital class of the 3C such as such as mobile phone, notebook computer, electronic instrument, be widely applied at present, and expand to electric tool gradually, on electric automobile.
Along with the development of electronic technology; a lot of electronic products or power consumption equipment are all using chargeable lithium cell as main energy source; due to these products or equipment easy consumes power in use, thus often there will be the situation of battery electric quantity deficiency, and need charge to battery in time.The output current majority of existing charger is a constant current, and by this electric current, battery is charged, be subject to the impact of charger rated power, general charger is only exported less electric current, but when battery charging with small electric stream, need battery to be full of for a long time, not only lose time but also inefficiency.Charging interval so of a specified duration for being badly in need of using the people of electronic product or power consumption equipment is beyond affordability, if etc. charging does not complete and just brings into use, the life-span of battery is exerted a certain influence again.
In addition, the current lithium ion cell charging time is long, and general about 3 hours, although can charge at short notice now, the energy of storage can reduce a lot.The longer charging interval has been hindered the application of lithium ion battery in electric motor car industry.So the problems such as self discharge and quick charge are lithium ion battery problem demanding prompt solutions.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of lithium battery frequency conversion quick-charging circuit is provided, to save the charging interval and to improve charge efficiency.
The purpose of this utility model is achieved through the following technical solutions:
A kind of lithium battery frequency conversion quick-charging circuit, comprise ac input end, rectification circuit and a filter circuit of serial connection successively, also comprise the high-frequency impulse circuit for generating, high-frequency conversion circuit and the DC output end that connect successively, the input of described high-frequency impulse circuit for generating is connected with the output of filter circuit.
Preferably, described lithium battery frequency conversion quick-charging circuit also comprise control circuit and for detection of, judge the voltage sampling circuit of electric energy storage device voltage, described voltage sampling circuit connects by charged lithium cells two ends, its feedback end connection control circuit; Described control circuit is connected with high-frequency impulse circuit for generating, high-frequency conversion circuit respectively.Voltage sampling circuit will detect and judge electric energy storage device voltage in real time, and by voltage detecting value feedback control circuit, control circuit receives each circuit data and carries out analyzing and processing, according to by the state of charged lithium cells, high-frequency impulse circuit for generating, high-frequency conversion circuit being controlled, adjust in real time.
Concrete, it also comprises described lithium battery frequency conversion quick-charging circuit and being arranged between filter circuit output and high-frequency impulse circuit for generating for gathering output current and feeding back to high-frequency impulse circuit for generating to carry out the feedback circuit of output current adjusting.
Preferably, described control circuit is also connected with overvoltage, short-circuit protection circuit, described overvoltage, short-circuit protection circuit and be connected by charged lithium cells.
The utility model has the following advantages and beneficial effect compared to existing technology:
1, the utility model adopts pulse current charge mode, improves the ability to accept of lithium battery, shortens the charging interval, increases discharge capacity, improves charge efficiency; And by the large electric current of high-frequency conversion circuit conducting, the pulse current using in the time of charge in batteries and pulse voltage, change the constant pressure and flow state in charging process, along with the variation of the voltage of lithium battery and constantly automatically regulate the size of charging current, thereby the electric energy of lithium battery is constantly supplemented, save the charging interval and improve charge efficiency, also making the lithium battery life-span further be extended.
2, the utility model utilizes the characteristic of high-frequency pulse current to make to use up electric lithium battery to recover fast and efficiently normal charging and discharging capabilities, battery is not caused damage again simultaneously.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of lithium battery frequency conversion quick-charging circuit, comprise an ac input end 1, the rectification circuit 2 and filter circuit 3 of serial connection successively, also comprise the high-frequency impulse circuit for generating 4, high-frequency conversion circuit 5 and the DC output end 6 that connect successively, the input of described high-frequency impulse circuit for generating 4 is connected with the output of filter circuit 3.Adopt the device pattern of the present embodiment to charge, by the large electric current of high-frequency conversion circuit conducting, the pulse current using in the time of charge in batteries and pulse voltage, change the constant pressure and flow state in charging process, along with the variation of the voltage of lithium battery and constantly automatically regulate the size of charging current, thereby the electric energy of lithium battery is constantly supplemented, save the charging interval and improve charge efficiency, also make the lithium battery life-span further be extended.
Described lithium battery frequency conversion quick-charging circuit also comprise control circuit 7 and for detection of, judge the voltage sampling circuit 8 of electric energy storage device voltage, described voltage sampling circuit 8 connects by charged lithium cells two ends, its feedback end connection control circuit 7; Described control circuit 7 is connected with high-frequency impulse circuit for generating 4, high-frequency conversion circuit 5 respectively.Voltage sampling circuit will detect and judge electric energy storage device voltage in real time, and by voltage detecting value feedback control circuit, control circuit receives each circuit data and carries out analyzing and processing, according to by the state of charged lithium cells, high-frequency impulse circuit for generating, high-frequency conversion circuit being controlled, adjust in real time.
It also comprises described lithium battery frequency conversion quick-charging circuit and being arranged between filter circuit 3 outputs and high-frequency impulse circuit for generating 4 for gathering output current and feeding back to high-frequency impulse circuit for generating 4 to carry out the feedback circuit 9 of output current adjusting.By feedback circuit, complete the feedback of out-put supply is detected, there is the good regulating characteristics of reporting to the leadship after accomplishing a task.
In order to prevent the short circuit of circuit and the phenomenon of overcurrent-overvoltage and operate miss, described control circuit 7 is also connected with overvoltage, short-circuit protection circuit 10, described overvoltage, short-circuit protection circuit 10 and be connected by charged lithium cells.
In the present embodiment; rectification circuit 2, filter circuit 3, high-frequency impulse circuit for generating 4, high-frequency conversion circuit 5, control circuit 7, voltage sampling circuit 8, feedback circuit 9, overvoltage, short-circuit protection circuit 10 are and adopt the usual circuit using of those skilled in the art; be prior art, do not repeat at this.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (4)
1. a lithium battery frequency conversion quick-charging circuit, comprise ac input end, rectification circuit and a filter circuit of serial connection successively, it is characterized in that: also comprise the high-frequency impulse circuit for generating, high-frequency conversion circuit and the DC output end that connect successively, the input of described high-frequency impulse circuit for generating is connected with the output of filter circuit.
2. lithium battery frequency conversion quick-charging circuit according to claim 1, it is characterized in that: described lithium battery frequency conversion quick-charging circuit also comprise control circuit and for detection of, judge the voltage sampling circuit of electric energy storage device voltage, described voltage sampling circuit connects by charged lithium cells two ends, its feedback end connection control circuit; Described control circuit is connected with high-frequency impulse circuit for generating, high-frequency conversion circuit respectively.
3. lithium battery frequency conversion quick-charging circuit according to claim 2, is characterized in that: it also comprises described lithium battery frequency conversion quick-charging circuit and being arranged between filter circuit output and high-frequency impulse circuit for generating for gathering output current and feeding back to high-frequency impulse circuit for generating to carry out the feedback circuit of output current adjusting.
4. lithium battery frequency conversion quick-charging circuit according to claim 3, is characterized in that: described control circuit is also connected with overvoltage, short-circuit protection circuit, described overvoltage, short-circuit protection circuit and be connected by charged lithium cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358139.9U CN203984062U (en) | 2014-07-01 | 2014-07-01 | Lithium battery frequency conversion quick-charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358139.9U CN203984062U (en) | 2014-07-01 | 2014-07-01 | Lithium battery frequency conversion quick-charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984062U true CN203984062U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420358139.9U Expired - Fee Related CN203984062U (en) | 2014-07-01 | 2014-07-01 | Lithium battery frequency conversion quick-charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764976A (en) * | 2015-04-24 | 2015-07-08 | 国家电网公司 | Experimental device for testing transformer substation current transformer |
| CN114374007A (en) * | 2021-12-30 | 2022-04-19 | 常州智戌新能源电力科技有限公司 | Power lithium battery barrier breaking machine and power lithium battery charging method |
-
2014
- 2014-07-01 CN CN201420358139.9U patent/CN203984062U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764976A (en) * | 2015-04-24 | 2015-07-08 | 国家电网公司 | Experimental device for testing transformer substation current transformer |
| CN114374007A (en) * | 2021-12-30 | 2022-04-19 | 常州智戌新能源电力科技有限公司 | Power lithium battery barrier breaking machine and power lithium battery charging method |
| CN114374007B (en) * | 2021-12-30 | 2022-11-08 | 常州智戌新能源电力科技有限公司 | Power lithium battery barrier breaking machine and power lithium battery charging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Frequency-conversion quick charging circuit of lithium battery Effective date of registration: 20180710 Granted publication date: 20141203 Pledgee: China Postal Savings Bank Limited by Share Ltd Huizhou branch Pledgor: HUIZHOU LONGWAYCAP TECHNOLOGY CO., LTD. Registration number: 2018440000195 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |