CN203690984U - Charger used for rechargeable batteries - Google Patents
Charger used for rechargeable batteries Download PDFInfo
- Publication number
- CN203690984U CN203690984U CN201320830929.8U CN201320830929U CN203690984U CN 203690984 U CN203690984 U CN 203690984U CN 201320830929 U CN201320830929 U CN 201320830929U CN 203690984 U CN203690984 U CN 203690984U
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- rechargeable battery
- charging
- battery
- charge
- switch unit
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Abstract
The utility model discloses a charger used for rechargeable batteries. The charger comprises a power transfer apparatus, multiple charging devices and a charging control apparatus. The charging control apparatus continuously sequences battery information values from different cell management units. The charging devices charge a rechargeable battery with the smallest battery information value until the battery information value of the charged rechargeable battery becomes the largest, and after the battery information value of the charged rechargeable battery exceeds the second largest battery information value by an overshoot, the charging is stopped. The charging devices change to charge a rechargeable battery with the smallest battery information value in the latest sequence.
Description
Technical field
The utility model is about a kind of charger.Particularly about a kind of charger alternately charging for rechargeable battery.
Background technology
Rechargeable battery is widely used in many products, such as notebook computer, panel computer, mobile phone, or even Large Electric car and robot.Although rechargeable battery is many by rechargeable battery core string or in parallel and form, but, according to the difference of power supply supply object, there is the specification of different output current and electric weight.
In general, electric motor car uses identical several large current charge batteries as power resources.Universal due to electric motor car, many charging stations (comprising the large-scale charging device of family expenses) be set up in gradually people's life arround.These equipment are can directly carry out electricity to the rechargeable battery in electric motor car simultaneously, and mostly the mode of its charging is the corresponding rechargeable battery of one group of charger.Such charging modes exists two problems: first, it is consistent that the electric quantity conditions of each rechargeable battery charging may not be certain, when some rechargeable batteries charge when complete, other rechargeable battery is also not complete, the use of will discharging, the situation that easily causes electric motor car electric weight not make it; The second, charging device need to possess multiple interchanges and turn DC circuit and a point circuit, causes the cost of equipment purchasing to increase.
Therefore, recently have one to exchange and turn DC circuit and a point circuit with one group, the charging device to different rechargeable batteries charging, starts to be laid in market respectively.Build cost except saving, these charging devices are applied to and can, in the rechargeable battery of the Large Electric device (as electric motor car) of long period charging, can, from peak time charging, save the electricity charge.
Although there is above-mentioned advantage, aforesaid charging device needs to overcome a problem: for this reason, a prior art can provide the direction of solution in the increase (average charge) that the electric quantity conditions while how controlling each rechargeable battery charging can be consistent.Ask for an interview Fig. 1, a kind of charge-discharge circuit 1, electric power consumption when it can reduce charging and discharging and can not shorten service time of storage battery.This charge-discharge circuit 1 comprises that charging current control circuit 2 is and is connected in parallel rechargeable battery 3, in order to implement to supply the so far by-pass governing of the charging current of rechargeable battery 3.One potential difference detection circuit 4, survey rechargeable battery 3 between voltage difference, and control this charging current control circuit 2 according to this voltage difference, with bypass optionally, this is supplied to the charging current of rechargeable battery 3.
By-pass governing foundation when the poor conduct charging of above-mentioned utilization charged battery voltage, and set and cause and voltage difference family of power and influence's value of ending charging, can yet be regarded as one can control charging time, the good method of each rechargeable battery average charge.But because the chargeable amount of rechargeable battery can make a variation in time, the voltage difference measuring only can represent rechargeable battery situation instantly, and cannot reflect in time real rechargeable battery charge condition; Again, along with scientific and technological progress, maturation has been attained in the development of battery management system, and more rechargeable battery characteristic can be found out and strengthen its Charge Management.Therefore, the execution skill of above-mentioned technology is necessary to progress greatly again, to meet the demand in implementation.
Therefore, can control each rechargeable battery in when charging, the charger of the increase (average charge) that electric quantity conditions can be consistent, needs industry to make great efforts research and development.
Summary of the invention
Known many rechargeable batteries charging device, organizes interchange because of tool more and turns DC circuit and a point circuit, and cost is higher.Utilizing one group of interchange to turn DC circuit also can charge to each rechargeable battery with the charging device that point circuit charges, thereby need to control each rechargeable battery in the time of charging, electric quantity conditions can be consistent the charger of increase (average charge), charger provided by the utility model meets the demand.
According to a kind of aspect of the present utility model, a kind of charger for rechargeable battery, comprises: a power inverter, be connected to an AC power, in order to by the alternating current of this AC power, transfer the direct current of quota output to,, charge to a rechargeable battery with once; Multiple charging devices, each charging device comprises: a charging switch unit, be connected to this power inverter, in order to receive after a Continuity signal, conduction is from the direct current of power inverter; One anti-reverse charhing unit, is connected to this charging switch unit, receives and conduct the direct current of self-charging switch unit, in order to prevent a rechargeable battery after charging to the reverse charging of switch unit of charging; And an output unit, be connected to this anti-reverse charhing unit, in order to by from the anti-reverse direct current to charhing unit, this rechargeable battery is charged; An and battery charge controller, with the battery management system electrical connection in each rechargeable battery that is connected output unit, for continuing to receive from a battery information of this battery management system, judging which rechargeable battery is charged, and send this Continuity signal to the charging switch unit under the charging device being connected with the rechargeable battery that will charge.This battery charge controller continues to sort to the battery information numerical value from each battery management unit, charging device charges to the rechargeable battery with minimum battery information numerical value, until the up-to-date battery information numerical value of this rechargeable battery charging becomes maximum, and exceed after battery information numerical value one transcend quantity of rechargeable battery of sequence second, stop this rechargeable battery charging, then the rechargeable battery of battery information numerical value minimum in nearest sequence is charged.
According to this case conception, this Continuity signal is a magnitude of voltage.
According to this case conception, this battery information is state of charge or voltage.
According to this case conception, this charging switch unit is composed in parallel by a diode and a metal oxide semiconductcor field effect transistor, and the grid of this metal oxide semiconductcor field effect transistor is controlled by this Continuity signal.
According to this case conception, this anti-reverse charhing unit is composed in parallel by a diode and a metal oxide semiconductcor field effect transistor, and the DC voltage of the grid origin self-charging switch unit of this metal oxide semiconductcor field effect transistor is controlled.
Charger provided by the utility model, can charge to rechargeable battery in turn.The amplitude of its increase can be controlled.It is full that such result causes each rechargeable battery to charge to fifty-fifty, do not have and overcharge or do not fill full situation.
Brief description of the drawings
Fig. 1 is the block schematic diagram of case before an accumulator charging/discharging circuit.
Fig. 2 is the block schematic diagram according to charger of the present utility model.
Fig. 3 is the thin portion circuit design of this charger.
Description of reference numerals: 1-charge-discharge circuit; 2-charging current control circuit; 3-rechargeable battery; 4-potential difference detection circuit; 10-charger; 110-power inverter; 120-battery charge controller; 130-the first charging device; 131-first switch unit that charges; The anti-reverse charhing unit of 132-first; 133-the first output unit; 140-the second charging device; 141-second switch unit that charges; The anti-reverse charhing unit of 142-second; 143-the second output unit; 150-the 3rd charging device; 151-the 3rd charging switch unit; The anti-reverse charhing unit of 152-the 3rd; 153-the 3rd output unit; 301-the first rechargeable battery; 302-the second rechargeable battery; 303-the 3rd rechargeable battery.
Embodiment
The utility model will more specifically be described by the following embodiment of reference.
Refer to Fig. 2 to Fig. 3.Fig. 2 is the block schematic diagram according to charger of the present utility model, the thin portion circuit design that Fig. 3 is this charger.
A kind of charger 10 for rechargeable battery provided by the utility model, is made up of a power inverter 110, three charging devices (the first charging device 130, the second charging device 140 and the 3rd charging device 150) and a battery charge controller 120.According to spirit of the present utility model, the quantity of charging device is not limited to three, minimum two above.The present embodiment utilizes three charging devices to describe more complicated charging order, its object non-limiting quantity, close first chat bright.
Each charging device comprises a charging switch unit, an anti-reverse charhing unit and an output unit., one first charging device 130 comprises one first charging switch unit 131, one first anti-reverse charhing unit 132 and one first output unit 133; One second charging device 140 comprises one second charging switch unit 141, one second anti-reverse charhing unit 142 and one second output unit 143; One the 3rd charging device 150 comprises one the 3rd charging switch unit 151, one the 3rd anti-reverse charhing unit 152 and one the 3rd output unit 153.The first charging switch unit 131, the second charging switch unit 141 and the 3rd charging switch unit 151 are connected to power inverter 110, can each leisure receive after a Continuity signal, and conduction is from the direct current of power inverter 110.Herein, Continuity signal is a predeterminated voltage value, and its function mode will be in compared with back segment specification, coordinates Fig. 3 and explains orally.
The first anti-reverse charhing unit 132, the second anti-reverse charhing unit 142 and the 3rd anti-reverse charhing unit 152, be connected with the 3rd charging switch unit 151 with the first charging switch unit 131, the second charging switch unit 141 separately, can receive and conduct the direct current from the charging switch unit connecting.The purposes of charging switch unit is for preventing that a rechargeable battery is after charging, to the corresponding reverse charging of charging switch unit.
The first output unit 133, the second output unit 143 and the 3rd output unit 153, be connected to the first anti-reverse charhing unit 132, the second anti-reverse charhing unit 142 and the 3rd anti-reverse charhing unit 152 separately.Each output unit can, by the direct current from the anti-reverse charhing unit of correspondence, charge to a connected rechargeable battery.Contrast Fig. 2, the first output unit 133 charges to one first rechargeable battery 301, and the second output unit 143 charges to one second rechargeable battery 302, and the 3rd output unit 153 charges to one the 3rd rechargeable battery 303.
Each charging switch unit (the first charging switch unit 131, the second charging switch unit 141 and the 3rd charging switch unit 151) structure function is identical, each anti-reverse charhing unit (the first anti-reverse charhing unit 132, the second anti-reverse charhing unit 142 and the 3rd anti-reverse charhing unit 152) structure function is also identical, hereby lift the first charging switch unit 131 and first and prevent that reverse charhing unit 132 is example, explain orally its internal structure and running, ask for an interview Fig. 3.The first charging switch unit 131 is composed in parallel by a diode 1311 and a metal oxide semiconductcor field effect transistor 1312.The grid of this metal oxide semiconductcor field effect transistor 1312 starts to be controlled by Continuity signal.The voltage of Continuity signal adds to the base stage of a triode 1313, forms a forward bias voltage drop, and then anti-reverse charhing unit 132 circuit of electric conduction power conversion device 110 to first.Otherwise, under without Continuity signal situation, path blockade.Herein, metal oxide semiconductcor field effect transistor 1312 is P channel mos field-effect transistor, the anodic bonding of its drain electrode and diode 1311.
Again, the first anti-reverse charhing unit 132 is composed in parallel by a diode 1321 and a metal oxide semiconductcor field effect transistor 1322, and the DC voltage of the grid origin self-charging switch unit of this metal oxide semiconductcor field effect transistor 1322 is controlled.Herein, metal oxide semiconductcor field effect transistor 1322 is N channel mos field-effect transistor, the anodic bonding of its source electrode and diode 1321.In the time receiving from the direct current power of power inverter 110, the first anti-reverse charhing unit 132 can conduct electric power to the first output unit 133, and then the first rechargeable battery 301 is charged.Otherwise, if not under charging situation, prevent that the first rechargeable battery 301 is after charging, to the reverse charging of the first charging switch unit 131.
For instance, suppose by the measurement of each rechargeable battery internal cell management system to state of charge as follows: the first rechargeable battery 301 is that 20%, the second rechargeable battery 302 is that 23%, the three rechargeable battery 303 is 25%.Because battery charge controller 120 is to continue to receive the state of charge detecting from each battery management system (the present embodiment is taking state of charge as this battery information, in implementation, also can be voltage), its numerical value may fluctuate in very among a small circle, the result that above-mentioned numerical value measures while judgement before for charging.
Before charging, can first set a transcend quantity of state of charge numerical value.In the present embodiment, this transcend quantity is 1%.This meaning exceedes the state of charge 1% of comparison rechargeable battery in other words when the numerical value of the state of charge of certain rechargeable battery, battery charge controller 120 can do certain control.Battery charge controller 120 can continue to receive the state of charge from battery management system provides in each rechargeable battery.Thus, battery charge controller 120 can continue to sort to the state of charge numerical value from each battery management unit.Be the 3rd rechargeable battery 303 state of charge numerical value > second rechargeable battery 302 state of charge numerical value > the first rechargeable battery 301 state of charge numerical value at the ranking results starting before charging.
Now, the first charging device 130 charges to first rechargeable battery 301 with minimum amount of power status values, until this up-to-date state of charge numerical value of the first rechargeable battery 301 charging becomes maximum, and exceed the state of charge numerical value 1%(transcend quantity of the 3rd rechargeable battery 303 of sequence second) after, stop this rechargeable battery charging.Now, the up-to-date state of charge numerical value of the first rechargeable battery 301 is 26%, note that higher than the 1%(of sequence second the 3rd rechargeable battery 303 sequence of state of charge numerical value continues to carry out).Control device 120 to be charged is adjusted after charging object, by the rechargeable battery charging starting state of charge numerical value minimum in nearest sequence.Now, up-to-date ranking results is first rechargeable battery 301 state of charge numerical value > the 3rd rechargeable battery 303 state of charge numerical value > the second rechargeable battery 302 state of charge numerical value.Therefore, the second charging device 140 will charge to second rechargeable battery 302 with minimum amount of power status values.When the state of charge numerical value of the second rechargeable battery 302 arrives 27%, becoming the charging that maximum also surmounts 1%, the second rechargeable battery 302 of the 3rd second largest rechargeable battery 303 of nearest sequence will suspend.In the same manner, control device 120 to be charged is adjusted after charging object, by the rechargeable battery charging (being now the 3rd rechargeable battery 303) starting state of charge numerical value minimum in nearest sequence, until next transcend quantity occurs.
From above narration, three rechargeable batteries can be according to charger provided by the utility model, wheel current charge.The amplitude of its increase is (being transcend quantity) that can control.It is full that such result causes each rechargeable battery to charge to fifty-fifty, do not have and overcharge or do not fill full situation.
Although the utility model discloses as above with embodiment; so it is not in order to limit the utility model; under any, in technical field, have and conventionally know the knowledgeable; not departing from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection range of the present utility model is when being as the criterion depending on the accompanying claim person of defining.
Claims (5)
1. for a charger for rechargeable battery, it is characterized in that, comprise:
One power inverter, is connected to an AC power, in order to by the alternating current of this AC power, transfers the direct current of quota output to,, charges to a rechargeable battery with once;
Multiple charging devices, each charging device comprises:
One charging switch unit, is connected to this power inverter, and in order to receive after a Continuity signal, conduction is from the direct current of power inverter;
One anti-reverse charhing unit, is connected to this charging switch unit, receives and conduct the direct current of self-charging switch unit, in order to prevent a rechargeable battery after charging to the reverse charging of switch unit of charging; And
One output unit, is connected to this anti-reverse charhing unit, in order to by from the anti-reverse direct current to charhing unit, this rechargeable battery is charged; And
One battery charge controller, with the battery management system electrical connection in each rechargeable battery that is connected output unit, for continuing to receive from a battery information of this battery management system, judging which rechargeable battery is charged, and send this Continuity signal to the charging switch unit under the charging device being connected with the rechargeable battery that will charge
Wherein, this battery charge controller continues to sort to the battery information numerical value from each battery management unit, charging device charges to the rechargeable battery with minimum battery information numerical value, until the up-to-date battery information numerical value of this rechargeable battery charging becomes maximum, and exceed after battery information numerical value one transcend quantity of rechargeable battery of sequence second, stop this rechargeable battery charging, then the rechargeable battery of battery information numerical value minimum in nearest sequence is charged.
2. the charger for rechargeable battery according to claim 1, is characterized in that, this Continuity signal is a magnitude of voltage.
3. the charger for rechargeable battery according to claim 1, is characterized in that, this battery information is state of charge or voltage.
4. the charger for rechargeable battery according to claim 1, it is characterized in that, this charging switch unit is composed in parallel by a diode and a metal oxide semiconductcor field effect transistor, and the grid of this metal oxide semiconductcor field effect transistor is controlled by this Continuity signal.
5. the charger for rechargeable battery according to claim 1, it is characterized in that, this anti-reverse charhing unit is composed in parallel by a diode and a metal oxide semiconductcor field effect transistor, and the DC voltage of the grid origin self-charging switch unit of this metal oxide semiconductcor field effect transistor is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830929.8U CN203690984U (en) | 2013-12-16 | 2013-12-16 | Charger used for rechargeable batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830929.8U CN203690984U (en) | 2013-12-16 | 2013-12-16 | Charger used for rechargeable batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690984U true CN203690984U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830929.8U Withdrawn - After Issue CN203690984U (en) | 2013-12-16 | 2013-12-16 | Charger used for rechargeable batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716698A (en) * | 2013-12-16 | 2015-06-17 | 高达能源科技股份有限公司 | Charger for rechargeable batteries and charging method thereof |
| CN104901373A (en) * | 2015-06-04 | 2015-09-09 | 深圳市爱兰博功率电子有限公司 | Balanced charger and balanced charging method |
| TWI562498B (en) * | 2015-01-26 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Mobile device and method of assigning current |
-
2013
- 2013-12-16 CN CN201320830929.8U patent/CN203690984U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716698A (en) * | 2013-12-16 | 2015-06-17 | 高达能源科技股份有限公司 | Charger for rechargeable batteries and charging method thereof |
| CN104716698B (en) * | 2013-12-16 | 2017-06-16 | 高达能源科技股份有限公司 | For the charger and its charging method of rechargeable battery |
| TWI562498B (en) * | 2015-01-26 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Mobile device and method of assigning current |
| US10243374B2 (en) | 2015-01-26 | 2019-03-26 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Mobile device and method of managing charging current |
| CN104901373A (en) * | 2015-06-04 | 2015-09-09 | 深圳市爱兰博功率电子有限公司 | Balanced charger and balanced charging method |
| CN104901373B (en) * | 2015-06-04 | 2018-07-13 | 深圳市爱兰博功率电子有限公司 | Balance-type charger and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20170616 |