CN202836775U - Temperature and humidity monitoring system of battery pack - Google Patents
Temperature and humidity monitoring system of battery pack Download PDFInfo
- Publication number
- CN202836775U CN202836775U CN2012203411079U CN201220341107U CN202836775U CN 202836775 U CN202836775 U CN 202836775U CN 2012203411079 U CN2012203411079 U CN 2012203411079U CN 201220341107 U CN201220341107 U CN 201220341107U CN 202836775 U CN202836775 U CN 202836775U
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- temperature
- humidity
- power brick
- collection module
- management system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model provides a temperature and humidity monitoring system of a battery pack. The monitoring system comprises the battery pack, at least one temperature and humidity sensor, a temperature and humidity acquisition module, a battery management system and a display module. The temperature and humidity monitoring system of the battery pack has simple technique and low cost and is convenient to implement. The monitoring system can be used for immediately and accurately determining temperature and humidity in the battery pack and informing a driver by instrument displaying or warning signals so that the driver can immediately and accurately know the temperature and humidity conditions of the battery pack, the safe operation of the battery pack is guaranteed, the use safety and reliability of an electric automobile are improved and the service life of power batteries is prolonged.
Description
Technical field
The utility model relates to design and the control field of electric battery, particularly a kind of power brick temperature and humidity monitoring system.
Background technology
New-energy automobile has obtained sufficient attention and development in recent years with its energy savings, low energy consumption, oligosaprobic advantage.But, because also there is risk in its safe reliability, limited it and used market, a reason that causes its reliability to reduce be new-energy automobile in use, circumstance complication is changeable, easily causes the temperature and humidity generation significant change of its electric battery inner air.
As everyone knows, current battery is the bottleneck of new-energy automobile industry development, and battery only is in its superperformance of competence exertion of working under suitable temperature, the humidity environment, otherwise will cause that electric battery sharply shortens serviceable life, driving safety seriously reduces.Therefore, the temperature and humidity of monitoring quickly and accurately electric battery inside is to make electric battery be operated in proper environment, improves electric battery serviceable life, improves the new-energy automobile travel safety, promotes the crucial behave that the new forms of energy industry constantly advances.
The utility model content
The utility model is intended to solve at least the technical matters that exists in the prior art, has proposed to special innovation a kind of power brick temperature and humidity monitoring system.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of power brick temperature and humidity monitoring system, it comprises power brick, at least one can detected temperatures and the Temperature Humidity Sensor of humidity, the humiture collection module, battery management system and display module, described Temperature Humidity Sensor is arranged on power brick inside, described Temperature Humidity Sensor detects the interior temperature and humidity of described power brick and temperature signal and moisture signal is transferred to described humiture collection module, described humiture collection module is transferred to described battery management system after with temperature signal and humidity signal processing, and described battery management system is transferred to display module with the temperature value in the power brick and humidity value and shows.
In a kind of preferred embodiment of the present utility model, this power brick temperature and humidity monitoring system also comprises warning device, described warning device links to each other with described battery management system, when the temperature in the power brick or humidity occur when unusual, described battery management system sends signal to warning device, and warning device is reported to the police.
Power brick temperature and humidity monitoring system technology of the present utility model is simple, with low cost, and it is convenient to realize.This monitoring system can be determined the temperature and humidity in the power brick timely and accurately, notify the driver by instrument demonstration or alerting signal, in case break down, can send different alerting signals according to current different faults, make the temperature and humidity situation of driver's understanding power brick promptly and accurately, guarantee the safe operation of electric battery, improve the safe reliability of electric automobile use and the serviceable life of electrokinetic cell.
In another kind of preferred embodiment of the present utility model, battery management system also links to each other with control unit for vehicle, described control unit for vehicle receives interior temperature value and the humidity value of power brick that battery management system sends, when the humidity value within the temperature value in the power brick exceeds safe temperature scope or power brick exceeded safe humidity range, described control unit for vehicle sends control signal to battery management system made described battery management system disconnect the output terminal of power brick.
The utility model disconnects the output terminal of power brick according to the temperature value in the power brick and humidity value control battery management system, can improve the reliability in the power brick course of work, makes running car safer.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation of the utility model power brick temperature and humidity monitoring system;
Fig. 2 is the wiring schematic diagram of the Temperature Humidity Sensor in a kind of preferred implementation of the utility model;
Fig. 3 is the connection diagram of Temperature Humidity Sensor and humiture collection module in a kind of preferred implementation of the utility model;
Fig. 4 is the structural representation of warning device in a kind of preferred implementation of the utility model;
Fig. 5 is the monitoring process flow diagram of the utility model power brick temperature and humidity monitoring system.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " vertically ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, need to prove, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly to link to each other, and also can indirectly link to each other by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Fig. 1 is the structural representation of the utility model power brick temperature and humidity monitoring system, as seen from the figure, this power brick temperature and humidity monitoring system comprises power brick, has at least one electric battery in this power brick, also having at least one can detected temperatures and the Temperature Humidity Sensor of humidity, humiture collection module, battery management system and display module.Temperature Humidity Sensor is arranged on power brick inside, this Temperature Humidity Sensor detects the interior temperature and humidity of power brick and temperature signal and moisture signal is transferred to the humiture collection module, in the present embodiment, temperature signal and moisture signal that this Temperature Humidity Sensor detects are simulating signals, the humiture collection module carries out temperature signal and moisture signal to process after the analog to digital conversion, then be transferred to battery management system, battery management system is delivered to display module with the temperature value of air in the power brick and humidity value and is shown.
Power brick temperature and humidity monitoring system technology of the present utility model is simple, with low cost, and it is convenient to realize.This monitoring system can be determined the temperature and humidity in the power brick timely and accurately, notifies the driver by instrument demonstration or alerting signal, guarantees the safe operation of electric battery, can improve the safe reliability of electric automobile use and the serviceable life of electrokinetic cell.
In the present embodiment, Temperature Humidity Sensor is the sensor that integrates of detected temperatures value and humidity value simultaneously, in the other embodiment of the utility model, Temperature Humidity Sensor is made of a discrete temperature sensor and humidity sensor, wherein, temperature sensor is for detection of the temperature value in the power brick, and humidity sensor is for detection of the humidity value in the power brick.
Fig. 2 is the wiring schematic diagram of the Temperature Humidity Sensor that adopts in a kind of preferred implementation of the utility model, as seen from the figure, in the present embodiment, this Temperature Humidity Sensor comprises power pins Vdd, power ground pin GND, serial clock input pin SCK and four pins of serial data pin DATA, wherein, power pins Vdd links to each other with power supply respectively with power ground pin GND, in the present embodiment, can increase the electric capacity of 100nF between power pins Vdd and the power ground pin GND, be used for decoupling filtering.Serial clock input pin SCK links to each other with the humiture collection module, the communication that is used between humiture collection module and the Temperature Humidity Sensor is synchronous, in the present embodiment, because interface has comprised safe static logic, thereby there is not minimum serial clock incoming frequency.The serial data pin links to each other with the humiture collection module, the humiture collection module reads temperature signal and moisture signal in the power brick that Temperature Humidity Sensor detects by serial data pin DATA, in the present embodiment, the duty of serial data pin DATA is the duty of triple gate, when serial data pin DATA change state behind serial clock input pin SCK clock negative edge, and only effective at serial clock input pin SCK rising edge clock.During the data transmission, when serial clock input pin SCK clock high level, serial data pin DATA must keep stable, for avoiding signal conflict, the humiture collection module should drive serial data pin DATA in low level, need the pull-up resistor of an outside, usually be included in the I/O circuit of humiture collection module.In the present embodiment, the Temperature Humidity Sensor of employing is SHT1X series.
Fig. 3 is the connection diagram of Temperature Humidity Sensor and humiture collection module in a kind of preferred implementation of the utility model, as seen from the figure, the serial clock input pin SCK of Temperature Humidity Sensor is connected with the clock input pin RXD of humiture collection module as the serial communication input, and the serial data pin DATA of Temperature Humidity Sensor is connected realization humiture data transmission with the signal input pin P1 of humiture collection module.In the present embodiment, this humiture collection module can work, and rely on automatic power-on reset circuit and two peripheral circuits of clock circuit on right side among Fig. 3.Single-chip microcomputer all needs to reset when starting, so that CPU and various parts are in definite original state, and from original state work, between the reset pin RESET of humiture collection module and power pins Vcc, be connected to a capacitor C 3, capacitor C connects a resistance R ground connection for 3 times, the progress of work of electrify restoration circuit is when powering up, electrify restoration circuit adds to of short duration high level signal of reset pin RESET of humiture collection module by capacitor C 3, this high level signal is along with power pins Vccc falls after rise gradually to capacitor C 3 charging processes.The main clocking of clock circuit drives the work of humiture collection module, realizes the sequential control of clock circuit by external crystal oscillator.When using the sheet internal oscillator, the reverse input end X1 of crystal oscillating circuit, the inverse output terminal X2 of crystal oscillating circuit are respectively the input and output side of sign-changing amplifier, external crystal Y1 and capacitor C 1 and capacitor C 2 consist of antiresonant circuit, are connected in the backfeed loop of amplifier.By reset circuit and clock circuit, guaranteed the normal operation of humiture collection module.
In the present embodiment, the humiture collection module can be connected with a Temperature Humidity Sensor, also can with a plurality of Temperature Humidity Sensor parallel joins, realize the concurrent working of a plurality of Temperature Humidity Sensors.
In the present embodiment, this power brick temperature and humidity monitoring system also comprises warning device, this warning device links to each other with battery management system, when one of the temperature value in the power brick, humidity value or both occur when unusual, battery management system sends signal to warning device, and warning device is reported to the police.Judge specifically whether the interior temperature value of current power brick is lower than the minimum temperature value or whether temperature value is higher than maximum temperature value, whether humidity value is higher than setting value, then battery management system sends signal according to judged result to warning device, so that warning device sends different chimes of dooms according to the situation of electric battery internal temperature values and humidity value.In the present embodiment, warning device sends three kinds of different chimes of dooms according to the situation of temperature value in the power brick and humidity value, when temperature value and humidity value all occur when unusual, the first alarm sound rises, when temperature value only occurs when unusual, the second alarm sound rises, and when humidity value only occurs when unusual, the 3rd chimes of doom sounds.
Fig. 4 is the structural representation of warning device in a kind of preferred implementation of the utility model, this warning device comprises current-limiting resistance R1, triode and hummer, the end of current-limiting resistance R1 links to each other with battery management system, the other end of current-limiting resistance R1 is connected with the base stage of triode, and the collector of triode connects hummer one end, and the other end of hummer connects power supply.
In the present embodiment, hummer adopts piezoelectric buzzer, its principle of work is: piezoelectric buzzer is made with the piezoelectric ceramics device, piezoelectric ceramics is that a class is with the special ceramics of pressure and the mutual transfer capability of electric current, when pressure ceramic when certain orientation is subject to a pressure its crystal structure is deformed, it will produce in inside an electric current, the variation of electric current and the variation of pressure are closely related, otherwise, when the voltage that adds certain frequency at voltage ceramic, will produce in inside the electric power of certain frequency, thereby will cause the distortion of piezoelectric ceramics smile, this distortion drives air vibration-generating, if frequency is suitable, just produce buzzer, can be heard by people's ear.
In the present embodiment, the course of work of this warning device is: when one of the temperature value in the power brick, humidity value or both occur when unusual, battery management system sends signal to warning device, this signal is added to the pipe base stage of three utmost points by current-limiting resistance R1, send the difference of signal to warning device according to battery management system, the triode alternation is in cut-off, and saturated form forms the high-low level ripple.
Based on humiture situations different in the power brick; battery management system sends the difference of signal to warning device; form different frequency the level ripple; after the magnitude of voltage of different frequency is applied on the hummer; so that hummer sends three kinds of different chimes of dooms; the prompting user of service reaches the effect of safeguard protection.
In the present embodiment, the minimum temperature value of setting in the power brick is-20 ℃, and the maximum temperature value in the power brick is 55 ℃, and humidity value is relative humidity, and its setting value is 90%.When temperature value and humidity value all occur when unusual, namely temperature is lower than-20 ℃ or be higher than 55 ℃ in power brick, and perhaps relative humidity is higher than 90%, and then hummer sends the first chimes of doom; When temperature value only occurs when unusual, namely temperature is lower than-20 ℃ or be higher than 55 ℃ in power brick, and then hummer sends the second chimes of doom; When humidity value only occurs when unusual, namely relative humidity is higher than 90%, and then hummer sends the 3rd chimes of doom.
In a kind of preferred implementation of the present utility model, the humiture collection module is at least one, and all humiture collection modules all link to each other with battery management system by the CAN communication line.
In the present embodiment; battery management system also links to each other with control unit for vehicle by the CAN communication line; temperature value and humidity value in the power brick that this control unit for vehicle reception battery management system sends also judged; when the humidity value within the temperature value in the power brick exceeds safe temperature scope or power brick exceeds safe humidity range; control unit for vehicle sends control signal to battery management system makes battery management system disconnect the output terminal of power brick; played safe protective effect; make in the power brick course of work safe reliability higher; improve better the quality of battery car, the more important thing is the driver and take the people and give safeguard protection.
Fig. 5 is the monitoring process flow diagram of the utility model power brick temperature and humidity monitoring system, and this power brick temperature and humidity monitoring system operation has following steps:
At first, Temperature Humidity Sensor is monitored the interior temperature and humidity of power brick and temperature signal and moisture signal is transferred to the humiture collection module; Then, the humiture collection module is transferred to battery management system after with temperature signal and humidity signal processing, battery management system judges whether the temperature and humidity in the power brick all occurs unusual, when the temperature and humidity in the power brick all occurs when unusual, warning device sends the first chimes of doom, and when the temperature in the power brick occurs unusual and humidity when normal, warning device sends the second chimes of doom, when the humidity in the power brick occurs unusual and temperature when normal, warning device sends the 3rd chimes of doom.When the humidity value within the temperature value in the power brick exceeds safe temperature scope or power brick exceeded safe humidity range, control unit for vehicle sends control signal to battery management system made battery management system disconnect the output terminal of power brick.
Utilize power brick temperature and humidity monitoring system of the present utility model to monitor, as long as vehicle launch, battery management system just receives the data that the humiture collection module is sent always, and temperature and humidity situation in the current power brick made accurate judgement, in case break down, battery management system will send instruction to warning device, send different chimes of dooms according to current different faults, thereby reach the effect of monitoring, improved the security of driving.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. power brick temperature and humidity monitoring system, it is characterized in that: comprise power brick, at least one can detected temperatures and the Temperature Humidity Sensor of humidity, the humiture collection module, battery management system and display module, described Temperature Humidity Sensor is arranged on power brick inside, described Temperature Humidity Sensor detects the interior temperature and humidity of described power brick and temperature signal and moisture signal is transferred to described humiture collection module, described humiture collection module is transferred to described battery management system after with temperature signal and humidity signal processing, and described battery management system is transferred to display module with the temperature value in the power brick and humidity value and shows.
2. power brick temperature and humidity monitoring system as claimed in claim 1, it is characterized in that: also comprise warning device, described warning device links to each other with described battery management system, when the temperature in the power brick or humidity occur when unusual, described battery management system sends signal to warning device, and warning device is reported to the police.
3. power brick temperature and humidity monitoring system as claimed in claim 2, it is characterized in that, described warning device comprises current-limiting resistance, triode and hummer, one end of described current-limiting resistance links to each other with battery management system, the other end of described current-limiting resistance is connected with the base stage of triode, and the collector of described triode connects hummer one end, and the other end of described hummer connects power supply.
4. power brick temperature and humidity monitoring system as claimed in claim 3 is characterized in that, described hummer has three kinds of different chimes of dooms.
5. power brick temperature and humidity monitoring system as claimed in claim 1 or 2, it is characterized in that: described battery management system also links to each other with control unit for vehicle, described control unit for vehicle receives interior temperature value and the humidity value of power brick that battery management system sends, when the humidity value within the temperature value in the power brick exceeds safe temperature scope or power brick exceeded safe humidity range, described control unit for vehicle sends control signal to battery management system made described battery management system disconnect the output terminal of power brick.
6. power brick temperature and humidity monitoring system as claimed in claim 1, it is characterized in that: the pin of described Temperature Humidity Sensor is by power pins, the power ground pin, serial clock input pin and serial data pin consist of, described power pins links to each other with power supply respectively with the power ground pin, described serial clock input pin links to each other with the humiture collection module, the communication that is used between humiture collection module and the Temperature Humidity Sensor is synchronous, described serial data pin links to each other with the humiture collection module, and the humiture collection module reads temperature signal and moisture signal in the power brick that Temperature Humidity Sensor detects by the serial data pin.
7. power brick temperature and humidity monitoring system as claimed in claim 1, it is characterized in that: described Temperature Humidity Sensor is made of a temperature sensor and a humidity sensor, described temperature sensor is for detection of the temperature in the power brick, and described humidity sensor is for detection of the humidity in the power brick.
8. power brick temperature and humidity monitoring system as claimed in claim 1, it is characterized in that: the clock input pin of described humiture collection module is connected with the serial clock input pin of Temperature Humidity Sensor, the signal input pin of described humiture collection module is connected with the serial data pin of Temperature Humidity Sensor, realize the transmission of temperature-humidity signal, described humiture collection module also links to each other with clock circuit with automatic power-on reset circuit; Described automatic power-on reset circuit is made of electric capacity (C3) and resistance (R), described electric capacity (C3) is connected between the reset pin and power pins of described humiture collection module, one end of described resistance (R) connects electric capacity (C3), and the other end of described resistance (R) connects ground connection; Described clock circuit is made of crystal (Y1), electric capacity (C1) and electric capacity (C2), described crystal (Y1) is connected between the inverse output terminal (X2) of the reverse input end (X1) of the crystal oscillating circuit of described humiture collection module and crystal oscillating circuit, one end of described crystal (Y1) is by electric capacity (C1) ground connection, and the other end of described crystal (Y1) is by electric capacity (C2) ground connection.
9. such as claim 1 or 8 described power brick temperature and humidity monitoring systems, it is characterized in that: described humiture collection module is at least one.
10. such as claim 1 or 8 described power brick temperature and humidity monitoring systems, it is characterized in that: described humiture collection module by the CAN communication line with shown in battery management system link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203411079U CN202836775U (en) | 2012-07-16 | 2012-07-16 | Temperature and humidity monitoring system of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203411079U CN202836775U (en) | 2012-07-16 | 2012-07-16 | Temperature and humidity monitoring system of battery pack |
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| Publication Number | Publication Date |
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| CN202836775U true CN202836775U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012203411079U Expired - Fee Related CN202836775U (en) | 2012-07-16 | 2012-07-16 | Temperature and humidity monitoring system of battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759411A (en) * | 2012-07-16 | 2012-10-31 | 力帆实业(集团)股份有限公司 | Temperature and humidity monitoring system of battery pack |
| CN104330178A (en) * | 2014-11-10 | 2015-02-04 | 国网辽宁省电力有限公司鞍山供电公司 | Wireless temperature measuring system for pre-buried lithium battery |
| CN114300765A (en) * | 2021-12-22 | 2022-04-08 | 广州小鹏汽车科技有限公司 | Battery pack monitoring method and device |
-
2012
- 2012-07-16 CN CN2012203411079U patent/CN202836775U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759411A (en) * | 2012-07-16 | 2012-10-31 | 力帆实业(集团)股份有限公司 | Temperature and humidity monitoring system of battery pack |
| CN102759411B (en) * | 2012-07-16 | 2014-01-22 | 力帆实业(集团)股份有限公司 | Temperature and humidity monitoring system of battery pack |
| CN104330178A (en) * | 2014-11-10 | 2015-02-04 | 国网辽宁省电力有限公司鞍山供电公司 | Wireless temperature measuring system for pre-buried lithium battery |
| CN114300765A (en) * | 2021-12-22 | 2022-04-08 | 广州小鹏汽车科技有限公司 | Battery pack monitoring method and device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |