CN102136740A - Battery charging/discharging system - Google Patents

Battery charging/discharging system Download PDF

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Publication number
CN102136740A
CN102136740A CN2010101059894A CN201010105989A CN102136740A CN 102136740 A CN102136740 A CN 102136740A CN 2010101059894 A CN2010101059894 A CN 2010101059894A CN 201010105989 A CN201010105989 A CN 201010105989A CN 102136740 A CN102136740 A CN 102136740A
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China
Prior art keywords
charge
battery
cell charging
discharge
power supply
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CN2010101059894A
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Chinese (zh)
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CN102136740B (en
Inventor
吴程远
简裕昌
王耀南
廖汉洲
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Chroma ATE Inc
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Chroma ATE Inc
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Abstract

The invention provides a battery charging/discharging system. The battery charging/discharging system comprises a recovery cable and a plurality of charging/discharging controllers, wherein each charging/discharging controller respectively corresponds to a battery. When the battery is in a discharging mode, the discharging current output by the battery flows to the recovery cable by the charging/discharging controller. When the battery charging/discharging system is in running, the recovery cable has a recovery voltage, and the recovery voltage is a direct current voltage. The invention can also reduce heat energy converted by electric energy which is not effectively utilized in addition to increasing the utilization ratio of energy and reducing the energy consumption of the whole battery charging/discharging system so as to solve the problem of heat radiation in the system.

Description

The cell charging system
Technical field
The present invention relates to testing apparatus, relate in particular to at the relevant cell charging system of the testing apparatus of battery design.
Background technology
Along with the development in science and technology progress, various in recent years commercializations, family expenses and individual's electronic product is universal all day by day.Except function and outward appearance, security of products and durability also are subjected to suitable attention.How to prolong the useful life of product and avoid the user, be all the subject under discussion that product designer and manufacturer pay close attention to because of the damage of product comes to harm.Generally speaking, product all must be through the program of quality inspection before the sale of dispatching from the factory.
For instance, during the battery that in producing electronic product, comprised, the producer must at battery charge and discharge change into test, normal with the charge/discharge process of guaranteeing battery, and its capacity can meet the requirement of product specification.
The electric energy of being discharged by battery carrying out in the process of discharge test for battery, if can be converted into a large amount of heat energy without recycling.Not only these heat energy form surprising energy waste, also can bring thorny heat dissipation problem to tester table or even whole peripheral test environment.In view of this, the more and more complete strictness of test condition of safety regulations regulation begins reclaiming energy one thing that battery discharge produces standard to some extent.
Existing cell charging test macro comprises a plurality of device for charge/discharge usually.See also Fig. 1, Fig. 1 is the schematic diagram of this system architecture.As shown in Figure 1, respectively do for oneself battery 12A, 12B of the device for charge/discharge 10A of two independent operatings and 10B carries out charge/discharge test.The electric energy that battery 12A discharges in discharge test only limits to be recycled to the power supply unit among the device for charge/discharge 10A.Similarly, the battery 12B electric energy of discharging in discharge test also only limits to be recycled to the power supply unit among the device for charge/discharge 10B.The shortcoming of this framework is to fail to reach the effect that electric energy is reclaimed in the most effective utilization.In addition, existing electric energy recovering system is with the alternating current form electric energy to be recycled to electric power system mostly, and such way causes the power quality factor to reduce easily.
Summary of the invention
For addressing the above problem, the invention provides a kind of cell charging system.By integrating a plurality of cell charging controllers,, also can and then reduce the heat dissipation problem in the testing equipment according to the electric weight of cell charging system of the present invention except can effectively reclaiming and utilize battery in discharge process, to discharge.In addition, be to reclaim electric energy according to cell charging of the present invention system with the direct current form, can solve therefore that the power quality factor is subjected to reclaiming the problem of electric power negative effect in the prior art.
A specific embodiment according to the present invention is a cell charging system, and this cell charging system comprises one and reclaims cable (recycling cable) and a plurality of charge/discharge controller.Each charge/discharge controller is separately corresponding to a battery.When this battery is in a discharge mode, a discharging current of this battery output flows to this recovery cable by this charge/discharge controller.When this cell charging system in when operation, this recoverys cable has a recovery voltage, and this recovery voltage is a direct current voltage.
Beneficial effect of the present invention is, by integrating a plurality of cell charging controllers, cell charging of the present invention system is except promoting energy utilization rate and reducing the power consumption of entire cell charge/discharge system, can also reduce by the converted heat energy of the electric energy that is not used effectively, and then the heat dissipation problem in the resolution system.
Be applicable to the battery of various different sizes or different capabilities according to cell charging of the present invention system, also not only for being applied in the testing equipment.Can be further understood by following detailed Description Of The Invention and appended accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Figure 1 shows that traditional cell charging system.
Fig. 2 A diagram is according to the cell charging system architecture diagram in one embodiment of the invention.
Fig. 2 B diagram charge/discharge module according to the present invention comprises the enforcement example of booster circuit.
Fig. 2 C diagram comprises two charge/discharge groups according to cell charging of the present invention system, and further comprises the embodiment of a central control module.
Fig. 2 D is the schematic diagram according to another cell charging system embodiment of the present invention.
Wherein, description of reference numerals is as follows:
10A, 10B: device for charge/ discharge 12A, 12B: battery
20: the 24A of cell charging system, 24B: charge/discharge controller
26: reclaim cable 28,246A: power supply unit
29,248A: single-way switch 242A: booster circuit
30A, 30B: charge/discharge group 32: central control module
Embodiment
See also Fig. 2 A, Fig. 2 A is the block diagram according to the cell charging system in the specific embodiment of the present invention.In the practical application, this system 20 can be a cell charging testing equipment, but not as limit.In this embodiment, this system comprises a plurality of charge/discharge controllers (for convenience of description, only illustrating two controller 24A, 24B among this figure as representative), and reclaims cable 26, a power supply unit 28 and a single-way switch 29.In practical application, reclaim cable 26 and can make with the metal copper material, but not as limit.
Shown in Fig. 2 A, each the charge/discharge controller in the present embodiment is separately corresponding to a battery (12A, 12B).The specification of battery 12A and battery 12B and needed voltage needn't be identical when being recharged.Also shown in Fig. 2 A, described battery is connected to by its pairing charge/discharge controller separately and reclaims cable 26.More particularly, 12A is in discharge mode when battery, and the discharging current that battery 12A is exported can be directed to by charge/discharge controller 24A and reclaim cable 26.Similarly, 12B is in discharge mode when battery, and charge/discharge controller 24B can reclaim cable 26 with the discharging current guiding of battery 12B output.According to the present invention, when the cell charging system 20 shown in Fig. 2 A in when operation, the recovery voltage that reclaims on the cable 26 is a direct current voltage.
In this embodiment, power supply unit 28 is connected to charge/ discharge controller 24A and 24B respectively, in order to by each charge/discharge controller to be battery 12A and the 12B charging that is in charge mode.Each charge/discharge controller also can provide the function of adjusting voltage for battery.For example, the supply voltage of supposing power supply unit 28 outputs is fixed as 24 volts, and the needed charging voltage of battery 12A is 5 volts, and then the charge/discharge controller 24A supply voltage that can be responsible for that oneself is received comes down to 5 volts earlier and offers battery 12A again.
In practical application, single-way switch 29 can utilize diode to realize.Shown in Fig. 2 A, single-way switch 29 is connected in and reclaims between cable 26 and the power supply unit 28.When single-way switch 29 is in conducting state, single-way switch 29 is only allowed by reclaiming the electric current that cable 26 flows to power supply unit 28 and is passed through.Easy speech, single-way switch 29 does not allow electric current to be flowed to by power supply unit 28 and reclaims cables 26.
Except the effect that the current limit flow direction is provided, single-way switch 29 can also provide magnitude of current restriction at the electric current that flows to power supply unit 28, avoids power supply unit 28 to damage because of a large amount of electric currents that flow into suddenly of can't loading whereby.In addition, when cell charging system 20 was in preliminary starting state, single-way switch 29 can be closed earlier, treated single-way switch 29 to be opened after the 20 beginning stable operations of cell charging system again.
It should be noted that 28 electric weight as the required consumption of battery 12A, 12B charging of power supply unit just can be lowered when power supply unit 28 accepts to reclaim the electric power supply by single-way switch 29 by recovery cable 26.In addition, even be not the situation that power supply unit 28 is charging to battery 12A, 12B, power supply unit 28 also can will be accepted electric power by reclaiming cable 26 earlier, supply with charge/ discharge controller 24A, 24B or other peripheral circuits as the required electric power of operation.
See also Fig. 2 B, Fig. 2 B is that one of charge/discharge controller 24A implements example.In this example, charge/discharge controller 24A comprises a booster circuit 242A.The function of booster circuit 242A is to improve by battery 12A and exports the voltage that reclaims cable 26 to.For example, suppose that the magnitude of voltage of the supply voltage of power supply unit 28 output is V1, and the cross-pressure value at single-way switch 29 two ends is V2 during single-way switch 29 conductings.12A is in discharge mode when battery, booster circuit 242A can provide battery 12A to the discharge voltage that reclaims cable 26 and rise to (V1+V2), the pressure drop that pressure reduction between the supply voltage of the discharge voltage of balancing battery 12A and power supply unit 28 outputs, and compensation single-way switch 29 is whereby caused between recovery cable 26 and power supply unit 28.
Other charge/discharge controllers in the cell charging system 20 (for example charge/discharge controller 24B) also can comprise the booster circuit 242A shown in Fig. 2 B.Because the operation principle of each charge/discharge controller is roughly the same, therefore repeat no more.
According to the present invention, if the charge/discharge amount controller that cell charging system 20 comprises is more, described a plurality of charge/discharge controllers can be assigned to a plurality of groups.For example, suppose that cell charging system 20 comprises for example 2,000 charge/discharge controllers as charge/discharge controller 24A, each hundred charge/discharge controller can be assigned to a group, and the shared power supply unit of the charge/discharge controller in each group.In other words, each self-contained power supply unit of each charge/discharge group.Perhaps, above-mentioned 2,000 charge/discharge controllers as charge/discharge controller 24A also can a shared power supply unit.
See also Fig. 2 C, Fig. 2 C diagram comprises two charge/discharge groups according to cell charging of the present invention system, and further comprises the embodiment of a central control module.Central control module 32 enters charge mode in turn in order to the control charge/discharge 30A of group, 30B.More particularly, the effect of central control module 32 is to arrange, regulate the charge order of the battery in each charge/discharge group, to reach the effect that the energy fullest is utilized.For example, as the 30A of charge/discharge group during to own pairing a plurality of battery charge itself, central control module 32 can make the battery among the 30B of charge/discharge group enter discharge condition, and the electric weight guiding that cell row is emitted is reclaimed cable 26.Relatively, as the 30B of charge/discharge group during to own pairing a plurality of battery charge itself, central control module 32 can make the battery among the 30A of charge/discharge group enter discharge condition, and the electric weight guiding that cell row is emitted is reclaimed cable 26.The electric energy of discharging when whereby, these two groups can utilize the other side to discharge is mutually saved power consumption for the charging process of oneself.
Because in cell charging according to the present invention system, the recycling of the energy no longer is confined to single charge and discharge device, therefore can significantly promote the utilance of electric energy.In the practical application, central control module 28 can utilize a computer system or a single-chip microprocessor to realize, but not as limit.
See also Fig. 2 D, Fig. 2 D is the schematic diagram according to another cell charging system embodiment of the present invention.In this embodiment, inner each the self-contained power supply unit of each charge/discharge controller, but not the shared power supply unit of a plurality of charge/discharge controller.When the pairing battery 12A of charge/discharge controller 24A is in charge mode, power supply unit 246A is battery 12A charging.Shown in Fig. 2 D, also comprise a single-way switch 248A among the charge/discharge controller 24A, be connected in and reclaim between cable 26 and this power supply unit 246A.When single-way switch 248A is in a conducting state, single-way switch 248A allows by reclaiming the electric current that cable 26 flows to power supply unit 246A and passes through.Identical with previous several embodiment is that the power supply unit 246A among Fig. 2 D can receive the recovery electric power that other battery discharges produced by reclaiming cable 26, saves whereby to be the required electric weight that expends of battery 12A.Relatively, the electric weight of discharging during battery 12A discharge also can be for the charging power of making other batteries.
As mentioned above, by integrating a plurality of cell charging controllers, cell charging system and method according to the present invention is except promoting energy utilization rate and reducing the power consumption of entire cell charge/discharge system, can also reduce by the converted heat energy of the electric energy that is not used effectively, and then the heat dissipation problem in the resolution system.In addition, reclaim electric energy with the direct current form, can solve therefore that the power quality factor is subjected to reclaiming the problem of electric power negative effect in the prior art according to system of system of the present invention.Be applicable to the battery of various different sizes or different capabilities according to cell charging system of the present invention and cell charging method, also not only for being applied in the testing equipment.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come protection scope of the present invention is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain various changes and be equal in the scope of patent protection that is alternative in the present patent application.

Claims (10)

1. cell charging system comprises:
One reclaims cable; And
A plurality of charge/discharge controllers, each charge/discharge controller wherein are separately corresponding to a battery, and when this battery is in a discharge mode, the discharging current that this battery is exported flows to this recovery cable by this charge/discharge controller;
Wherein when this cell charging system in when operation, this recoverys cable has a recovery voltage, and this recovery voltage is a direct current voltage.
2. cell charging as claimed in claim 1 system is characterized in that this cell charging system also comprises:
One power supply unit is connected to each charge/discharge controller respectively, is pairing this battery charge of each charge/discharge controller in order to pass through each charge/discharge controller.
3. cell charging as claimed in claim 2 system is characterized in that this cell charging system also comprises:
One single-way switch is connected between this recovery cable and this power supply unit, and when this single-way switch is in a conducting state, this single-way switch allows that an electric current that flows to this power supply unit by this recovery cable passes through.
4. cell charging as claimed in claim 3 system is characterized in that, when this cell charging system is in a steady operational status, this single-way switch is unlocked; When this cell charging system is in a preliminary starting state, this single-way switch is closed.
5. cell charging as claimed in claim 3 system is characterized in that this single-way switch comprises a diode.
6. cell charging as claimed in claim 3 system is characterized in that, this single-way switch provides magnitude of current restriction at this electric current that flows to this power supply unit.
7. cell charging as claimed in claim 2 system is characterized in that this power supply unit provides a supply voltage for described a plurality of charge/discharge controllers, and each charge/discharge controller each is self-contained:
One booster circuit, when pairing this battery of this charge/discharge controller is in this discharge mode, this booster circuit provides this battery to rise to a discharge voltage of this recovery cable and is higher than this supply voltage.
8. cell charging as claimed in claim 2 system is characterized in that this cell charging system further comprises:
One central control module is in order to control the order that described a plurality of battery is recharged or discharges by these a plurality of charge/discharge controllers.
9. cell charging as claimed in claim 1 system, it is characterized in that, each self-contained power supply unit of each charge/discharge controller, when pairing this battery of this charge/discharge controller is in a charge mode, this power supply unit is this battery charge.
10. cell charging as claimed in claim 9 system is characterized in that each charge/discharge controller also comprises separately:
One single-way switch is connected between this recovery cable and this power supply unit, and when this single-way switch is in a conducting state, this single-way switch allows that an electric current that flows to this power supply unit by this recovery cable passes through.
CN 201010105989 2010-01-25 2010-01-25 Battery charging/discharging system Expired - Fee Related CN102136740B (en)

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CN 201010105989 CN102136740B (en) 2010-01-25 2010-01-25 Battery charging/discharging system

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Application Number Priority Date Filing Date Title
CN 201010105989 CN102136740B (en) 2010-01-25 2010-01-25 Battery charging/discharging system

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CN102136740A true CN102136740A (en) 2011-07-27
CN102136740B CN102136740B (en) 2013-09-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104917407A (en) * 2015-05-25 2015-09-16 珠海新金珠电力设备有限公司 DC power supply
CN107181006A (en) * 2017-06-22 2017-09-19 北京圣比和科技有限公司 A kind of battery preparation method and formation device of 3V grades of lithium titanate battery flatulence of solution

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11289676A (en) * 1998-04-01 1999-10-19 Toyo System Kk Power unit for secondary battery charging and discharging device
JP2001218377A (en) * 2000-01-31 2001-08-10 Oyo Denki Kk Power unit for charge and discharge of secondary battery
WO2007078053A1 (en) * 2006-01-02 2007-07-12 Kapjin Co., Ltd. Charge and discharge system of a direct current regenerative form

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11289676A (en) * 1998-04-01 1999-10-19 Toyo System Kk Power unit for secondary battery charging and discharging device
JP2001218377A (en) * 2000-01-31 2001-08-10 Oyo Denki Kk Power unit for charge and discharge of secondary battery
WO2007078053A1 (en) * 2006-01-02 2007-07-12 Kapjin Co., Ltd. Charge and discharge system of a direct current regenerative form

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104917407A (en) * 2015-05-25 2015-09-16 珠海新金珠电力设备有限公司 DC power supply
CN107181006A (en) * 2017-06-22 2017-09-19 北京圣比和科技有限公司 A kind of battery preparation method and formation device of 3V grades of lithium titanate battery flatulence of solution

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