CN202916424U - Cell guard plate - Google Patents
Cell guard plate Download PDFInfo
- Publication number
- CN202916424U CN202916424U CN 201220672098 CN201220672098U CN202916424U CN 202916424 U CN202916424 U CN 202916424U CN 201220672098 CN201220672098 CN 201220672098 CN 201220672098 U CN201220672098 U CN 201220672098U CN 202916424 U CN202916424 U CN 202916424U
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- Prior art keywords
- power
- voltage stabilizing
- communication interface
- guard plate
- stabilizing diode
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A cell guard plate comprises a RS232 communication interface and a serial port communication power supply circuit, the power supply circuit obtains power from an external equipment serial port plugged with the guard plate, and the obtained power is converted, outputted and provided to a RS232 communication interface chip. A communication interface of display equipment is used to provide power, so self-power consumption of the guard plate is prevented. The cell guard plate provides power only when the RS232 is needed to work, power will be disconnected when the RS232 is not needed to work, so self-power consumption of the guard plate is reduced, power is saved, and performance of a cell pack is fully expressed.
Description
Technical field
The utility model relates to lithium battery group fender technology, particularly a kind of energy saving battery fender with communication interface.
Background technology
Lithium battery protection board more and more need to connect display device with serial ports RS232 at present; be used for making things convenient for Real Time Monitoring electric battery status information; in battery charge and discharge process; the terminal voltage of every battery in the Real-time Collection accumulator of electric car group and temperature, charging and discharging currents and power brick total voltage prevent that battery from overcharging or the overdischarge phenomenon.Simultaneously can in time provide battery condition, pick out problematic battery, keep whole Battery pack reliability of operation and high efficiency, make the realization of remaining capacity estimation model become possibility.In addition, also to set up the use historical archives of every battery, for further optimizing and development of new electricity, charger, motor etc. are given information, for the off-line analysis system failure provides foundation.But currently used serial ports RS232 communicating circuit also will adopt electric battery to power mostly; when not using serial communication, it still remains on duty, so just increased fender from power consumption; in vain loss the electric energy of electric battery, reduced the electric battery service efficiency.
Summary of the invention
For overcoming the defective of above-mentioned prior art, the utility model provides a kind of energy-conservation battery protecting plate with communication interface.
The technical solution adopted in the utility model is:
A kind of battery protecting plate is provided with the RS232 communication interface, also comprises the serial communication power circuit, and this power circuit obtains power supply from the external unit serial ports with the fender grafting, and output offers the RS232 communication interface chip after the conversion.
Described serial communication power circuit comprises isolating diode, voltage stabilizing diode, current-limiting resistance, filter capacitor; Input voltage is loaded into the positive pole of isolating diode, the negative pole of isolating diode and current-limiting resistance series connection, the other end of current-limiting resistance is connected with the negative pole of voltage stabilizing diode, voltage stabilizing diode plus earth, filter capacitor is in parallel with voltage stabilizing diode, and the voltage stabilizing diode negative pole is as power output end.
Preferably, described serial communication power circuit obtains power supply from the RTS line of external unit serial ports.
The beneficial effects of the utility model are:
(1) the utility model has changed the power supply mode of fender, just power when only having the RS232 of needs work, and deenergization when not needing work, thus lowered fender from power consumption, saved electric energy, bring into play more fully the performance of electric battery.
(2) the utility model is owing to reduced fender from power consumption, and also just relatively increased service time after every primary cell subgroup was full of electricity, reduced charging times, prolonged serviceable life.
Description of drawings
Fig. 1 is the enforcement block scheme of the battery protecting plate principle of work of the RS232 of being provided with communication interface described in the utility model;
Fig. 2 is the circuit diagram that the serial communication power circuit of battery protecting plate described in the utility model is implemented.
Embodiment
For making things convenient for those skilled in the art to understand technology contents of the present utility model, below in conjunction with drawings and Examples the utility model is described in further detail.
The battery protecting plate embodiment block diagram that the utility model discloses as shown in Figure 1; be provided with the RS232 communication interface; also comprise the serial communication power circuit, this power circuit obtains power supply from the external unit serial ports with the fender grafting, and output offers the RS232 communication interface chip after the conversion.From power consumption, we provide power supply with the communication interface of display device for fear of fender.When display device will show the electric battery status information; using serial communication bundle of lines display device serial ports is connected with the fender communication interface; the voltage that this moment, the display device serial ports provided can offer fender by the RTS line of serial port communication line; the voltage transitions that fender serial communication power circuit provides the display device serial ports becomes stable output voltage to offer the RS232 communication interface chip, and serial ports RS232 communicating circuit is started working.When display device does not need the electric battery status information, pull out Serial Port Line, serial ports RS232 communicating circuit deenergization quits work, and from the phenomenon of power consumption, has saved electric energy when so just having avoided serial ports RS232 communicating circuit not use.
Described serial communication power circuit as shown in Figure 2, comprises isolating diode D1, voltage stabilizing diode D2, current-limiting resistance R1, filter capacitor C1; Input voltage is loaded into the positive pole of isolating diode D1, the negative pole of isolating diode D1 and current-limiting resistance R1 series connection, the other end of current-limiting resistance R1 is connected with the negative pole of voltage stabilizing diode D2, voltage stabilizing diode D2 plus earth, filter capacitor C1 is in parallel with voltage stabilizing diode D2, voltage stabilizing diode D2 negative pole is as power output end, and stable output voltage is to the RS232 communication interface chip.
Above-described embodiment only is wherein specific implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection domain of the present utility model.
Claims (3)
1. a battery protecting plate is provided with the RS232 communication interface, it is characterized in that, also comprises the serial communication power circuit, and this power circuit obtains power supply from the external unit serial ports with the fender grafting, and output offers the RS232 communication interface chip after the conversion.
2. battery protecting plate according to claim 1, it is characterized in that: described serial communication power circuit comprises isolating diode, voltage stabilizing diode, current-limiting resistance, filter capacitor; Input voltage is loaded into the positive pole of isolating diode, the negative pole of isolating diode and current-limiting resistance series connection, the other end of current-limiting resistance is connected with the negative pole of voltage stabilizing diode, voltage stabilizing diode plus earth, filter capacitor is in parallel with voltage stabilizing diode, and the voltage stabilizing diode negative pole is as power output end.
3. battery protecting plate according to claim 1 and 2, it is characterized in that: described serial communication power circuit obtains power supply from the RTS line of external unit serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672098 CN202916424U (en) | 2012-12-10 | 2012-12-10 | Cell guard plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672098 CN202916424U (en) | 2012-12-10 | 2012-12-10 | Cell guard plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916424U true CN202916424U (en) | 2013-05-01 |
Family
ID=48164727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220672098 Expired - Fee Related CN202916424U (en) | 2012-12-10 | 2012-12-10 | Cell guard plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931804A (en) * | 2014-03-21 | 2015-09-23 | 河北瑞萨工业自动化技术有限公司 | Novel excitation-cabinet de-excitation resistor detection apparatus |
-
2012
- 2012-12-10 CN CN 201220672098 patent/CN202916424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931804A (en) * | 2014-03-21 | 2015-09-23 | 河北瑞萨工业自动化技术有限公司 | Novel excitation-cabinet de-excitation resistor detection apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20191210 |