CN201130243Y - Apparatus for testing single string lithium ion battery set static state self-consumption - Google Patents
Apparatus for testing single string lithium ion battery set static state self-consumption Download PDFInfo
- Publication number
- CN201130243Y CN201130243Y CNU2007200982392U CN200720098239U CN201130243Y CN 201130243 Y CN201130243 Y CN 201130243Y CN U2007200982392 U CNU2007200982392 U CN U2007200982392U CN 200720098239 U CN200720098239 U CN 200720098239U CN 201130243 Y CN201130243 Y CN 201130243Y
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- battery
- protection chip
- lithium ion
- circuit module
- ion battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a single lithium-ion batteries static self-consuming detecting device, which adopts the technical proposal that the detecting device comprises a protection circuit module and a detection module; wherein, the protection circuit module comprises a protect IC, a charge and discharge control coupled circuit, an MOSFET and a battery. The protect IC is connected with the battery through an isolating resistor and a test point is arranged in the protection circuit module with a testing line educed from the test point. The detection module comprises a multimeter and the multimeter is connected with the input end of the protect IC and the battery cathode respectively. The new static self-consuming current value detection device can test the battery static self-consuming current value accurately without influence on the performance of the battery and guarantee the safety and reliability of the battery performance. The single lithium-ion batteries static self-consuming detecting device has the advantages of simple design, safe and reliable performance, convenient detecting and extensive application.
Description
Technical field
The utility model relates to electronic surveying and control device field, more particularly, relates to a kind of device that detects the static consumable of single string lithium ion battery group.
Background technology
At present, single string lithium ion battery group is made up of single lithium ion battery, electronic protection circuit plate and encapsulating housing usually.Wherein, the effect of holding circuit plate is may overcharge and over-discharge can in the use in order to prevent, and prevents that abnormal conditions such as excess current discharge or short circuit from causing the injury of battery; Therefore, the performance of holding circuit plate is normally stable is very important.The holding circuit plate as parts before assembling by receiving inspection, assembling with rear wing with also must make over-charge protective, mistake after battery is connected and put and protect and the detection of excess current discharge performance.
Overcharging of lithium ion battery group, deep-discharge protection are to be finished by the electronic component on the fender.During charging, when the cell voltage of electric battery during more than or equal to over-charge protective voltage, protection IC output signal is turn-offed the charging switch mosfet on the fender, stops charging.When discharging into cell voltage and being equal to or less than over voltage, corresponding output is turn-offed the discharge switch mosfet, stops discharge.Problem is, when fender with after battery is connected, put defencive function and voltage value if will detect the fender over-charge protective and cross, must make the IC input end that detects cell voltage on the fender reach above-mentioned condition.Cell voltage was reached put the discharge that protection voltage needs the long period, on the other hand, making cell voltage reach over-charge protective voltage also needs the long period charging, and this detection mode utmost point is unsuitable for large-scale production.Even if check at ordinary times also should not actual discharge be and have been put protection, be charged to over-charge protective; Because, overcharge and overdischarge all can produce harmful effect to battery performance.
Usually single string electric battery is not detected in the actual production, the short time large current charge is adopted in the detection of overcharging, and in the short time cell voltage is brought up to additives for overcharge protection voltage; But use and to exceed the big electric current that battery capacity allows there is following shortcoming in batteries charging: excessive charging current can influence battery performance, and battery and measuring equipment are proposed requirements at the higher level, and the impact that bear powerful electric current certainly will increase the manufacturing cost of equipment.When detection of excessive current is discharged, adopt usually and set higher relatively fixing steady current; whether detect it again after the connection electric battery protects; there is following shortcoming in this method of testing: can accurately not judge flow valuve; and set discharge current near or reach the fender upper specification limit; can not detect in limited time when the actual flow valuve excessively of electric battery is lower than under the specification, omission occur.About static consumable test, do not detect usually now, there is long-term hidden danger in the easy like this electric battery generation omission big to self discharge.
The utility model content
Technical problem to be solved in the utility model is, overcomes the shortcoming that static consumable can not be tested, and a kind of device that detects the static consumable of single string lithium ion battery group is provided.
A kind of device that detects the static consumable of single string lithium ion battery group of the utility model, be achieved by following technical proposals, form by holding circuit module and detection module, described holding circuit module by the protection chip, charge and discharge control coupled circuit, MOSFET and battery is formed, the protection chip is connected with battery through isolation resistance, the holding circuit module is provided with test point, draws p-wire by test point; Described detection module comprises multimeter, and multimeter connects protection chip input end and anode respectively.
The anodal B+ of holding circuit modular battery described in the utility model is connected with the Vdd end of protection chip N1 through isolation resistance R1, and battery cathode is connected with Vss end and the MOSFET of protection chip N1, and MOSFET is connected with the C0 end with the D0 of protection chip.
The beneficial effects of the utility model are: the pick-up unit that the static consumable current value of a kind of novel detection is provided, this device can test out the static consumable current value of electric battery accurately under the situation that does not influence battery performance, guaranteed the safe and reliable of battery performance.This installs simplicity of design, and performance is safe and reliable, and is easy to detect, but widespread use.
Description of drawings
Fig. 1 is the utility model circuit design principle figure.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
The utility model is to represent that with typical single string holding circuit the measurement of other single string holding circuit in like manner can be expanded on this circuit diagram basis.As shown in fig. 1, described holding circuit module by the protection chip, charge and discharge control coupled circuit, MOSFET and battery is formed, anode B+ is connected with the Vdd end of protection chip N1 through isolation resistance R1, battery cathode is connected with Vss end and the MOSFET of protection chip N1, MOSFET is connected with the C0 end with the D0 of protection chip, above device bound fraction capacitance resistance ware constitutes the holding circuit module; The holding circuit module is provided with test point B+, Vdd, draws p-wire by test point; Multimeter connects protection chip input end and anode respectively in the detection module; as shown in Figure 3; connect the switch of multimeter; by multimeter to the voltage readings between 2 o'clock; convert by computing machine according to formula I=U/R (R is the isolation resistance resistance between fender IC and anode), can obtain the static consumable value of this electric battery.
Above-mentionedly this list string lithium ion battery group is overcharged, crosses and to put the detailed description that protection voltage, excess current discharge and static consumable pick-up unit carry out with reference to example; be illustrative rather than determinate; therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection domain of the present utility model.
Claims (2)
1. device that detects the static consumable of single string lithium ion battery group, it is characterized in that, form by holding circuit module and detection module, described holding circuit module by the protection chip, charge and discharge control coupled circuit, MOSFET and battery is formed, the protection chip is connected with battery through isolation resistance, the holding circuit module is provided with test point, draws p-wire by test point; Described detection module comprises multimeter, and multimeter connects protection chip input end and anode respectively.
2. a kind of device that detects the static consumable of single string lithium ion battery group according to claim 1; it is characterized in that; the anodal B+ of described holding circuit modular battery is connected with the Vdd end of protection chip N1 through isolation resistance R1; battery cathode is connected with Vss end and the MOSFET of protection chip N1, and MOSFET is connected with the C0 end with the D0 of protection chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200982392U CN201130243Y (en) | 2007-11-30 | 2007-11-30 | Apparatus for testing single string lithium ion battery set static state self-consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200982392U CN201130243Y (en) | 2007-11-30 | 2007-11-30 | Apparatus for testing single string lithium ion battery set static state self-consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130243Y true CN201130243Y (en) | 2008-10-08 |
Family
ID=40018106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200982392U Expired - Lifetime CN201130243Y (en) | 2007-11-30 | 2007-11-30 | Apparatus for testing single string lithium ion battery set static state self-consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130243Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279369A (en) * | 2011-07-21 | 2011-12-14 | 深圳市核达中远通电源技术有限公司 | Intelligent remote online storage battery detection method and system |
-
2007
- 2007-11-30 CN CNU2007200982392U patent/CN201130243Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279369A (en) * | 2011-07-21 | 2011-12-14 | 深圳市核达中远通电源技术有限公司 | Intelligent remote online storage battery detection method and system |
| CN102279369B (en) * | 2011-07-21 | 2017-02-15 | 深圳市核达中远通电源技术有限公司 | Intelligent remote online storage battery detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |