CN203324365U - Charge/discharge current detection device for storage battery - Google Patents
Charge/discharge current detection device for storage battery Download PDFInfo
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- CN203324365U CN203324365U CN201320218642XU CN201320218642U CN203324365U CN 203324365 U CN203324365 U CN 203324365U CN 201320218642X U CN201320218642X U CN 201320218642XU CN 201320218642 U CN201320218642 U CN 201320218642U CN 203324365 U CN203324365 U CN 203324365U
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Abstract
The utility model discloses a charge/discharge current detection device for a storage battery. The storage battery comprises a lead for charging and discharging and a battery body. The charge/discharge current detection device comprise a Hall current sensor, a signal amplification unit, a microprocessor and a display device, wherein the Hall sensor is fixed on the charging/discharging lead; and the Hall current sensor detects current signals in the lead, the current signals are amplified by the signal amplification unit and then sent to the microprocessor, the microprocessor compares the collected current signals with a charging/discharging current threshold, and according to the comparison result, the microprocessor controls display of the display unit. According to the utility model, it is only required to clamp the Hall current sensor on the lead to realize current detection, so that the current detection device does not make electrical contact with a tested circuit, thereby satisfying requirement for large current detection, not influencing the detected circuit, not consuming power of a detected power supply, and solving the problem of temperature rise.
Description
Technical field
The utility model relates to a kind of accumulator cell charging and discharging current sensing means.
Background technology
Lead-acid accumulator causes low cost of manufacture, stable work in work and is widely used in needing in the working environment of heavy-current discharge.Due to the outwardness of large electric current factor, therefore to detecting its current system, following corresponding requirements will be arranged: reaction velocity is fast, highly sensitive, sensing range is large.
The detection mode of generally using at present is to utilize linear resistance to solve, and according to result of use, the method not only can not meet detection heavy-current discharge system necessary requirement, and the method can not solve well to the heat dissipation problem of himself simultaneously.
Summary of the invention
The utility model purpose is to provide a kind of accumulator cell charging and discharging current sensing means, and its apparatus structure is simple, long service life, can meet large current sample testing requirement and without problem of temperature rise.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of accumulator cell charging and discharging current sensing means, accumulator comprises wire and the battery main body for discharging and recharging, the battery discharging current sensing means comprises and is fixed on Hall current sensor, signal amplification unit, microprocessor and the display unit discharged and recharged on wire, Hall current sensor detects the current signal in wire and send into microprocessor after signal amplification unit amplifies, and microprocessor compares the current signal collected and the current threshold discharged and recharged control according to comparative result the demonstration of display unit.
For technique scheme, the inventor also has further optimization embodiment.
As optimization, described Hall current sensor is the two half-cylindrical cylindrical holders that form, and is provided with symmetrically Hall element in cylindrical holder.
As optimization, described microprocessor is according to the charging and discharging state of the current direction judgement accumulator detected, and calls different current thresholds and compare judgement with the current signal size collected according to discharging and recharging different conditions.
Hall element is a kind of Magnetic Sensor based on Hall effect, can be used for detecting magnetic field and variation thereof, can in the various occasions relevant with magnetic field, use.And, owing to there being magnetic field around electrified wire, its size is directly proportional to the electric current in wire, therefore can utilize Hall element to measure magnetic field, just can determine the size of current in wire.Hall current sensor in the utility model is exactly measure the size of electric current in wire internal magnetic field and then definite wire and flow to by Hall element.
Than solution of the prior art, the utility model advantage is:
A kind of accumulator cell charging and discharging current sensing means disclosed in the utility model, detect size of current and the flow direction in the accumulator cell charging and discharging wire by Hall current sensor, by the charging and discharging currents threshold value of the current signal that collects and lead-acid accumulator, (parameter is different and adjust according to each accumulator model again for microprocessor, the known parameters that the charging and discharging currents threshold value is accumulator) compare, draw whether have charging or the excessive problem of discharge current, thereby shown and reminding user by display unit.Hall current sensor in the utility model only need to be clipped on wire and can realize current detecting, current sensing means does not electrically contact with circuit-under-test, can meet the checking of great current demand, does not affect circuit-under-test, do not consume the power of tested power supply, just solved problem of temperature rise simultaneously yet.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
The structural representation that Fig. 1 is the utility model embodiment.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for the present invention is described.The implementation condition adopted in embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
Embodiment:
The present embodiment has been described a kind of accumulator cell charging and discharging current sensing means, accumulator comprises wire and the battery main body for discharging and recharging, battery discharging current sensing means as shown in Figure 1 comprises and is fixed on the Hall current sensor 1 discharged and recharged on wire, signal amplification unit, microprocessor and display unit, Hall current sensor 1 detects the current signal in wire and send into microprocessor after signal amplification unit amplifies, microprocessor compares the current signal collected and the current threshold discharged and recharged control according to comparative result the demonstration of display unit, it is signal amplification unit that power supply is arranged simultaneously, the normal operation power supply of microprocessor and display unit.
Described microprocessor is according to the charging and discharging state of the current direction judgement accumulator detected, and calls different current thresholds and compare judgement with the current signal size collected according to discharging and recharging different conditions.
Described Hall current sensor 1 is the two half-cylindrical cylindrical holders that form, and is provided with symmetrically Hall element in cylindrical holder.
Above-mentioned example is only explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification, within all should being encompassed in protection scope of the present invention.
Claims (2)
1. an accumulator cell charging and discharging current sensing means, accumulator comprises wire and the battery main body for discharging and recharging, it is characterized in that, the battery discharging current sensing means comprises and is fixed on Hall current sensor, signal amplification unit, microprocessor and the display unit discharged and recharged on wire, Hall current sensor detects the current signal in wire and send into microprocessor after signal amplification unit amplifies, and microprocessor compares the current signal collected and the current threshold discharged and recharged control according to comparative result the demonstration of display unit.
2. accumulator cell charging and discharging current sensing means according to claim 1, is characterized in that, described Hall current sensor is the two half-cylindrical cylindrical holders that form, and is provided with symmetrically Hall element in cylindrical holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320218642XU CN203324365U (en) | 2013-04-26 | 2013-04-26 | Charge/discharge current detection device for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320218642XU CN203324365U (en) | 2013-04-26 | 2013-04-26 | Charge/discharge current detection device for storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324365U true CN203324365U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320218642XU Expired - Fee Related CN203324365U (en) | 2013-04-26 | 2013-04-26 | Charge/discharge current detection device for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997003A (en) * | 2017-06-09 | 2017-08-01 | 郑州云海信息技术有限公司 | It is a kind of to realize the lossless system for exempting to tear measurement open of server power supply electric current |
-
2013
- 2013-04-26 CN CN201320218642XU patent/CN203324365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997003A (en) * | 2017-06-09 | 2017-08-01 | 郑州云海信息技术有限公司 | It is a kind of to realize the lossless system for exempting to tear measurement open of server power supply electric current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140426 |