CN2685893Y - Large current high precision electric resistance sampling shunt in battery testing system - Google Patents
Large current high precision electric resistance sampling shunt in battery testing system Download PDFInfo
- Publication number
- CN2685893Y CN2685893Y CN 200420015546 CN200420015546U CN2685893Y CN 2685893 Y CN2685893 Y CN 2685893Y CN 200420015546 CN200420015546 CN 200420015546 CN 200420015546 U CN200420015546 U CN 200420015546U CN 2685893 Y CN2685893 Y CN 2685893Y
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- shunt
- manganese
- testing system
- pcb board
- battery testing
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Abstract
The utility model relates to a large current high precision electric resistance sampling shunt on battery testing system, composed of a sampling resistance 2, a PCB plate 1 and a needle 3, wherein, the sampling resistance 2 is side by side composed of a plurality of thinner manganese copper wires 4. The manganese copper wires 4 are welded on a small PCB plate 1. One welding point of the manganese copper wires 4 on the PCB plate 1 is taken as the take-off point of the sampling signal of the shunt. And the needle 3 is used to lead out the sampling signal from the PCB plate 1. The utility model can greatly improve the accuracy of testing which can reach two thousandths.
Description
Technical field
The utility model relates to the resistance sampling formula shunt on a kind of battery testing system, the big electric current precision resister sampling formula shunt on especially a kind of battery testing system.
Background technology
The general sampling spot of resistance sampling mode on the existing battery forming and capacity dividing detection system and the tie point of circuit loop together, like this, when big electric current flow through, precision did not satisfy requirement.
Summary of the invention
The utility model aims to provide the big electric current precision resister sampling formula shunt on the battery testing system that a kind of precision accuracy reaches thousand molecules two.
The utility model is achieved in that it is made up of sample resistance, pcb board and row's pin, and wherein sample resistance is made of side by side many thinner manganese-copper filaments.Manganese-copper filament is welded on the little pcb board, gets wherein a manganese-copper filament at the pad of the pcb board off-take point as the shunt sampled signal, with row's pin sampled signal is drawn from pcb board again.Detection signal as whole shunt, this voltage signal reflects the size of current of shunt equally: according to Ohm law---flow through the wherein electric current and the resistance of self relation of being inversely proportional to of the manganese-copper filament of each root, just the electric current that flow through of each root of manganese-copper filament side by side all is decided by the resistance sizes of self, as long as measure the electric current that arbitrary manganese-copper filament flows through, just know whole row's total current that manganese-copper filament flow through.
The utility model production cost is low, can improve the precision of detection greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a schematic diagram of the present utility model;
Fig. 2 is a synoptic diagram of the present utility model.
1.PCB plate among the figure, 2. sample resistance, 3. row's pin, 4 manganese-copper filaments.
Embodiment
Be made up of sample resistance 2, pcb board 1 and row's pin 3 with reference to figure the utility model, wherein sample resistance 2 is made of side by side many thinner manganese-copper filaments 4.Manganese-copper filament 4 is welded on the little pcb board 1, gets wherein a manganese-copper filament 4 at the pad of pcb board 1 off-take point as the shunt sampled signal, with row's pin 3 sampled signal is drawn from pcb board 1 again.Detection signal as whole shunt, this voltage signal reflects the size of current of shunt equally: according to Ohm law---flow through the wherein electric current and the resistance of self relation of being inversely proportional to of the manganese-copper filament of each root, just the electric current that flow through of each root of manganese-copper filament side by side all is decided by the resistance sizes of self, as long as measure the electric current that arbitrary manganese-copper filament flows through, just know whole row's total current that manganese-copper filament flow through.
The utility model production cost is low, can improve the precision of detection greatly, makes it reach 2/1000ths.
Certainly, above-mentioned implementation method only supplies the usefulness of explanation the utility model, and is not to restriction of the present utility model.The variation that the those of ordinary skill in relevant technologies field is made in the corresponding techniques field according to the utility model should belong to protection category of the present utility model.
Claims (1)
1, the big electric current precision resister sampling formula shunt on a kind of battery testing system, it is made up of sample resistance (2), pcb board (1) and row's pin (3), it is characterized in that: sample resistance (2) is made of side by side many thinner manganese-copper filaments (4), manganese-copper filament (4) is welded on the little pcb board (1), get a manganese-copper filament (4) wherein at the pad of pcb board (1) off-take point as the shunt sampled signal, with row's pin (3) sampled signal is drawn from pcb board (1) again, as the detection signal of whole shunt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015546 CN2685893Y (en) | 2004-02-17 | 2004-02-17 | Large current high precision electric resistance sampling shunt in battery testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015546 CN2685893Y (en) | 2004-02-17 | 2004-02-17 | Large current high precision electric resistance sampling shunt in battery testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685893Y true CN2685893Y (en) | 2005-03-16 |
Family
ID=34668758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015546 Expired - Fee Related CN2685893Y (en) | 2004-02-17 | 2004-02-17 | Large current high precision electric resistance sampling shunt in battery testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685893Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565512A (en) * | 2010-12-28 | 2012-07-11 | 北京博电新力电气股份有限公司 | Precision measurement method and device for heavy current |
| CN103412167A (en) * | 2013-08-05 | 2013-11-27 | 北京无线电计量测试研究所 | Coaxial disk type splitter for measuring recurrent pulse current |
| CN106535463A (en) * | 2015-09-15 | 2017-03-22 | 展讯通信（上海）有限公司 | Bonding pad structure and circuit for improving current detection accuracy |
| CN108717136A (en) * | 2018-08-01 | 2018-10-30 | 济宁奥太电气有限公司 | A kind of software current divider being applied to inverter type welder and method |
| CN111337726A (en) * | 2020-04-10 | 2020-06-26 | 深圳市欣旺达电气技术有限公司 | Circuit structure based on patch shunt and current detection method |
-
2004
- 2004-02-17 CN CN 200420015546 patent/CN2685893Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565512A (en) * | 2010-12-28 | 2012-07-11 | 北京博电新力电气股份有限公司 | Precision measurement method and device for heavy current |
| CN103412167A (en) * | 2013-08-05 | 2013-11-27 | 北京无线电计量测试研究所 | Coaxial disk type splitter for measuring recurrent pulse current |
| CN103412167B (en) * | 2013-08-05 | 2016-01-06 | 北京无线电计量测试研究所 | A kind of coaxial Disc Shunt for recurrent pulse current measurement |
| CN106535463A (en) * | 2015-09-15 | 2017-03-22 | 展讯通信（上海）有限公司 | Bonding pad structure and circuit for improving current detection accuracy |
| CN108717136A (en) * | 2018-08-01 | 2018-10-30 | 济宁奥太电气有限公司 | A kind of software current divider being applied to inverter type welder and method |
| CN111337726A (en) * | 2020-04-10 | 2020-06-26 | 深圳市欣旺达电气技术有限公司 | Circuit structure based on patch shunt and current detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |