CN202014109U - Power supply capable of adjusting charging voltage of battery - Google Patents
Power supply capable of adjusting charging voltage of battery Download PDFInfo
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- CN202014109U CN202014109U CN2011200525270U CN201120052527U CN202014109U CN 202014109 U CN202014109 U CN 202014109U CN 2011200525270 U CN2011200525270 U CN 2011200525270U CN 201120052527 U CN201120052527 U CN 201120052527U CN 202014109 U CN202014109 U CN 202014109U
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Abstract
The utility model provides a power supply capable of adjusting charging voltage of a battery. The power supply comprises a storage battery to be charged, a voltage-adjusting unit connected with the storage battery to be charged, and a control unit connected with the voltage-adjusting unit for controlling the voltage-adjusting unit to generate different voltages. The power supply can greatly prolong the service life of the storage battery and can fully charge the storage battery.
Description
Technical field
The utility model relates to a kind of electric motor car charging technique, is specifically related to a kind of power supply of adjusting battery charging voltage.
Background technology
The electric automobile cause has obtained significant progress, but the fragility relatively of battery system is the bottleneck of electric motor car development.Lithium battery has energy density and the advantage of non-environmental-pollution problem is again hanged down in bulk density height, operating voltage height, memory-less effect, self discharge, be the ideal power source of electric automobile, but the anti-over-charging electric energy power of lithium battery is poor than lead-acid battery.Tradition makes that based on the charging method of battery pack terminal voltage there is the serious phenomenon of overcharging in the part battery in charging process in the battery pack, make the capacity of battery descend rapidly, the life-span of battery seriously shortens, and the operating cost of vehicle increases, and has hindered the development of electric automobile.
For a long time, lead acid accumulator has obtained using widely as main power source or back-up source.The anti-over-charging ability of lead-acid battery is stronger, can carry out equilibrium to battery by the trickle charge in charging later stage.The nineties in 20th century, Ni-MH battery and lithium battery are used for small-power occasions such as mobile phone, notebook computer and digital camera after occurring more.Electric automobile is higher to the requirement of battery, and reason is: (1) needs capacity big; (2) a large amount of connection in series-parallel are used; (3) operating current of battery is big and change rapidly; (4) work under bad environment, comprise that road jolts and cell between can cause the difference of actual capacity because initial capacity, heating and self discharge etc. are incomplete same, and the battery that capacity is low more is in use easy more to be occurred overcharging and overdischarge, capacity attenuation is serious more, show positive feedback, make battery consistency worse and worse; In order to reach balanced effect, the capacity of equalizer, volume and quality are all big, form contradiction between this and vehicle space and the high operational efficiency.
Since the ability of overcharging of lithium battery a little less than, can not be balanced by the trickle charge realization in charging later stage as lead-acid battery, even if so when battery dispatches from the factory, carried out strict screening, after using a period of time, capacity between the cell still difference can occur, in charging process, the phenomenon generation that the part battery is full of electricity earlier certainly will appear like this.Owing to can not learn whether have individual cell to be full of electricity in the battery pack timely and effectively, make the battery that is full of electricity earlier occur overcharging based on the charging method of battery pack terminal voltage.Even if lead-acid battery adopts based on the charge mode of terminal voltage also can cause the capacity attenuation of a large amount of heatings of battery and battery rapid because serious overcharging taken place, the life-span seriously shortens.
The utility model content
The purpose of this utility model provides a kind of power supply of adjusting battery charging voltage, and it has the greenization notion, does not have the bottleneck restriction of capacity, needing to be particularly suitable for the occasion of big capacity charger, has very strong practicality.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions:
A kind of power supply of adjusting battery charging voltage, it comprises:
Storage battery to be charged;
The voltage-adjusting unit that is connected with described storage battery to be charged; And
Be connected with voltage-adjusting unit, be used to control the control unit that described voltage-adjusting unit produces different voltages.
Further, described control unit comprises:
Monitoring module that be connected with voltage-adjusting unit, by voltage-adjusting unit monitoring battery state of charge;
Be connected with monitoring module, be used for searching the calling module that is stored in look-up table battery state of charge control information corresponding; And
The control information that is connected with calling module, finds according to calling module produces control signal corresponding, and is transferred to the control signal generating module of voltage-adjusting unit.
Further, described a kind of power supply of adjusting battery charging voltage also comprises: the display unit that is connected with described control unit.
Further, described display unit is a LCDs.
Further, described control unit be central processing unit, microprocessor or single-chip microcomputer one of them.
The utility model provides a kind of power supply of adjusting battery charging voltage, and the life of storage battery is prolonged greatly, and can make the storage battery sufficient electrical energy.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a kind of module diagram of adjusting the power supply of battery charging voltage of the utility model first embodiment.
Fig. 2 is a kind of module diagram of adjusting the power supply of battery charging voltage of the utility model second embodiment.
Embodiment
See also Fig. 1, it is a kind of module diagram of adjusting the power supply of battery charging voltage of the utility model embodiment.
A kind of power supply of adjusting battery charging voltage, it comprises storage battery 11, voltage-adjusting unit 12 and control unit 13.Wherein, described control unit be central processing unit, microprocessor or single-chip microcomputer one of them.Described storage battery 11 1 ends connect voltage-adjusting unit 12, other end ground connection, and described control unit 13 connects voltage-adjusting unit 12, and is connected with storage battery 11 by voltage-adjusting unit 12.
Described control unit 13 is used for the charged state according to storage battery 11, call the look-up table that is built in the control unit 13, find the charged state control information corresponding of storage battery 11, produce control signal corresponding, be transferred to voltage-adjusting unit 12, described voltage-adjusting unit 12 produces corresponding voltage according to described control signal.
Further, a kind of specific implementation of described control unit 13, can be as described below:
Described voltage-adjusting unit 12 is at the voltage adjustment signal that is receiving control unit 13 transmission successively, institute successively the voltage of the correspondence of generation for increasing progressively successively.Certainly, more preferably, the voltage of the correspondence that described voltage-adjusting unit 12 produces successively increases progressively for single-candidate successively.
A kind of method of work of adjusting the power supply of battery charging voltage of the utility model is:
1, at first charging device does not have impact type increase charging current to storage battery, reaches the charging current higher limit up to charging current, and the maximum that this upper current limit value is not more than storage battery allows charging current value; 2, be the constant voltage value of first ladder with accumulator voltage at this moment then, next charging device enters the constant voltage control stage; 3, along with the carrying out of charging process, the charging current on storage battery can progressively reduce, in case charging current less than the charging current lower limit after, charging device just improves charging voltage, thereby causes the increase of charging current; In case when the charging current on 4 storage batterys reaches the charging current higher limit, be the constant voltage value of next ladder with the terminal voltage on the storage battery of this moment again, charging device enters next constant voltage control stage; 5, the constant voltage that so periodically rises with staged storage battery both end voltage is controlled and is charged a battery, and reaches the charging termination value up to accumulator voltage; 6, keep the charging termination value then and carry out the constant voltage control stage, the charging that is reduced to setting until charging current finishes current value; 7, charging device changes the floating charge operating state automatically over to, and whole charging process finishes.
The principle of this embodiment is: in whole charging process, charging device mainly is to finish charging process by the constant voltage value that improves constantly constant voltage control, from belonging to the constant voltage control method in essence, just the charging current of its constant voltage value generation is to adjust in the storage battery allowed band, this charging method has been avoided in a big way the current fluctuation that storage battery causes owing to the AC characteristic of its internal resistance of cell, storage battery itself resembles voltage-controlled effect has increased a jumbo capacitor, quite favourable to improving voltage control precision and stability.Add that the charger DC loop does not contain the high-frequency harmonic component and can not produce the burr spike, between charge period, storage battery is difficult for decomposition water and consumed power like this, and is difficult for making the active material on the pole plate to come off in a large number, thereby the life of storage battery is prolonged greatly, and can make the storage battery sufficient electrical energy.
To be storage battery be lower than sensitivity to electric current to the sensitivity of voltage to the theoretical foundation of this embodiment, and the stable of charge in batteries voltage is vital to the storage battery life-saving.On the basis that keeps constant voltage control, do not allow charging current allow charging current greater than the maximum of storage battery in the use, the stepped increase of charging voltage is the actual conditions according to charging current, is provided with automatically by charger.On the chemical characteristic of storage battery, its charging interval is not the shortest, but is best to the overall target of battery charge, is very effective to the life-span that prolongs storage battery simultaneously yet.
See also Fig. 2, it is a kind of module diagram of adjusting the power supply of battery charging voltage of the utility model second embodiment.
Compared to first embodiment, in a second embodiment, increase display unit 24.Described display unit 24 can be LCDs, is used to show the charged state of storage battery.
In a second embodiment, a kind of power supply of adjusting battery charging voltage comprises storage battery 21, voltage-adjusting unit 22, control unit 23 and display unit 24.Wherein, described storage battery 21 1 ends connect voltage-adjusting unit 22, other end ground connection, and described control unit 23 connects voltage-adjusting unit 22, and is connected with storage battery 21 by voltage-adjusting unit 22.Display unit 24 1 ends are connected with control unit 23, other end ground connection.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (5)
1. a power supply of adjusting battery charging voltage is characterized in that, comprising:
Storage battery to be charged;
The voltage-adjusting unit that is connected with described storage battery to be charged; And
Be connected with voltage-adjusting unit, be used to control the control unit that described voltage-adjusting unit produces different voltages.
2. a kind of power supply of adjusting battery charging voltage according to claim 1 is characterized in that described control unit comprises:
Monitoring module that be connected with voltage-adjusting unit, by voltage-adjusting unit monitoring battery state of charge;
Be connected with monitoring module, be used for searching the calling module that is stored in look-up table battery state of charge control information corresponding; And
The control information that is connected with calling module, finds according to calling module produces control signal corresponding, and is transferred to the control signal generating module of voltage-adjusting unit.
3. a kind of power supply of adjusting battery charging voltage according to claim 1 is characterized in that, also comprises: the display unit that is connected with described control unit.
4. a kind of power supply of adjusting battery charging voltage according to claim 3 is characterized in that described display unit is a LCDs.
5. a kind of power supply of adjusting battery charging voltage according to claim 1 is characterized in that, described control unit be central processing unit, microprocessor or single-chip microcomputer one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200525270U CN202014109U (en) | 2011-03-02 | 2011-03-02 | Power supply capable of adjusting charging voltage of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200525270U CN202014109U (en) | 2011-03-02 | 2011-03-02 | Power supply capable of adjusting charging voltage of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014109U true CN202014109U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200525270U Expired - Fee Related CN202014109U (en) | 2011-03-02 | 2011-03-02 | Power supply capable of adjusting charging voltage of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202014109U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531858A (en) * | 2012-07-03 | 2014-01-22 | 上海汽车集团股份有限公司 | Stepping battery charging method and stepping battery charging device |
| CN104769806A (en) * | 2012-09-13 | 2015-07-08 | 弗罗纽斯国际有限公司 | Method and device for charging batteries |
| CN109474039A (en) * | 2018-12-21 | 2019-03-15 | 北京新能源汽车股份有限公司 | Direct current transducer DCDC Regulation Control method, apparatus, equipment and automobile |
| US11411423B2 (en) | 2017-09-30 | 2022-08-09 | Honor Device Co., Ltd. | Charging control method, related device, and computer storage medium |
-
2011
- 2011-03-02 CN CN2011200525270U patent/CN202014109U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531858A (en) * | 2012-07-03 | 2014-01-22 | 上海汽车集团股份有限公司 | Stepping battery charging method and stepping battery charging device |
| CN103531858B (en) * | 2012-07-03 | 2015-11-18 | 上海汽车集团股份有限公司 | Battery stepping charge control method and battery stepping charging device |
| CN104769806A (en) * | 2012-09-13 | 2015-07-08 | 弗罗纽斯国际有限公司 | Method and device for charging batteries |
| US9537342B2 (en) | 2012-09-13 | 2017-01-03 | Fronius International Gmbh | Method and device for charging batteries by linearly increasing the charging voltage |
| CN104769806B (en) * | 2012-09-13 | 2018-02-13 | 弗罗纽斯国际有限公司 | Method and apparatus for being charged to battery |
| US11411423B2 (en) | 2017-09-30 | 2022-08-09 | Honor Device Co., Ltd. | Charging control method, related device, and computer storage medium |
| CN109474039A (en) * | 2018-12-21 | 2019-03-15 | 北京新能源汽车股份有限公司 | Direct current transducer DCDC Regulation Control method, apparatus, equipment and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiangsu Jiayu New Power Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Jiangsu Jiayu New Power Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20160302 |