CN203658883U - Temperature and humidity monitoring system for power battery pack of electric vehicle - Google Patents
Temperature and humidity monitoring system for power battery pack of electric vehicle Download PDFInfo
- Publication number
- CN203658883U CN203658883U CN201320824691.8U CN201320824691U CN203658883U CN 203658883 U CN203658883 U CN 203658883U CN 201320824691 U CN201320824691 U CN 201320824691U CN 203658883 U CN203658883 U CN 203658883U
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery
- humidity
- control unit
- battery control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a temperature and humidity monitoring system for the power battery pack of an electric vehicle, which comprises a temperature and humidity sensor, a battery monitoring unit, a battery control unit and a fan. The temperature and humidity sensor is connected with the battery monitoring unit and is used for acquiring the temperature and humidity information inside the power battery pack of the electric vehicle and then sending the information to the battery monitoring unit. The battery monitoring unit is connected between the temperature and humidity sensor and the battery control unit and is used for sending the temperature and humidity information to the battery control unit. The battery control unit is used for receiving the temperature and humidity information sent by the battery monitoring unit, and then starting the fan when the temperature reaches a preset first temperature threshold or the humidity reaches a preset first humidity threshold value. The fan is connected with the battery control unit and is configured to be started under the control of the battery control unit. The system is capable of monitoring the temperature and the humidity of the power battery pack of the electric vehicle in real time, while regulating the temperature and the humidity of the power battery pack of the electric vehicle in real time.
Description
Technical field
The utility model relates to the battery cell monitoring technology of electric motor car, more specifically relates to a kind of electric automobile power battery bag temperature and humidity monitoring system.
Background technology
Battery, as the major impetus source of electric automobile, carries out real-time monitoring to battery system and is very important, and due to their high-energy-density, needs voltage and the ambient temperature and humidity of a good battery management system for detection of multiple batteries.If there is no this monitoring function, it is out of control to there is humiture in system, cause battery on fire, blast.
The work of battery system and keeping are very responsive to humiture, and too high humiture will cause battery case to break, occur the accidents such as leakage, appliance component are short-circuited.In environmental monitoring in most of electrokinetic cell system, design humidity detection at present, and there is no design humidity regulation and control.And 5.1.2 item content provided battery system working environment humidity in the electric automobile power battery system universal standard is 5%～95%, exceedes this scope battery system and should carry out humidity regulation and report to the police and process.
Therefore, need a kind of system of electric automobile power battery bag being carried out to temperature and humidity monitor, can carry out Real-Time Monitoring to the humiture of electric automobile power battery bag, also can carry out real-time monitoring to the humiture of electric automobile power battery bag.
Utility model content
(1) technical matters that will solve
In the utility model, the technical matters that solve is how can the humiture of electric automobile power battery bag be carried out to Real-Time Monitoring, can carry out real-time monitoring to the humiture of electric automobile power battery bag again.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of electric automobile power battery bag temperature and humidity monitoring system, and this system comprises Temperature Humidity Sensor, battery detection unit, battery control unit and fan;
Temperature Humidity Sensor, is connected to battery detection unit, for gathering the temperature and humidity in electric automobile power battery bag and sending to battery detection unit;
Battery detection unit, is connected between Temperature Humidity Sensor and battery control unit, for described temperature and described humidity are sent to battery control unit;
Battery control unit, receives described temperature and described humidity that battery detection unit sends, and reaches and when the first temperature threshold of setting or described humidity reach the first humidity threshold value of setting, control starting fan in described temperature;
Fan, is connected to battery control unit, starts for accepting the control of battery control unit.
Preferably, this system also comprises:
Both positive and negative polarity contactor, be connected to battery control unit, for reach the electrical source of power of accepting the control of battery control unit when the second temperature threshold of setting or described humidity reach the second humidity threshold value of setting and disconnect electric automobile power battery bag in described temperature.
Preferably, this system also comprises:
Threshold unit, is connected to battery control unit, for design temperature threshold value and humidity threshold value.
Preferably, this system also comprises:
Temperature Humidity Sensor and battery detection unit are multiple and connect one to one.
Preferably, the each battery correspondence in electric automobile power battery bag disposes a Temperature Humidity Sensor.
Preferably, this system also comprises:
Alarm, is connected to battery control unit, sends a warning for accepting the control of battery control unit.
Preferably, this system also comprises:
Display device, is connected to battery control unit, for showing in real time described temperature and described humidity.
Preferably, Temperature Humidity Sensor is monolithic whole school accurate set of digits accepted way of doing sth temperature and moisture sensors.
(3) beneficial effect
The electric automobile power battery bag temperature and humidity monitoring system the utility model proposes, adopt Temperature Humidity Sensor to replace the discrete temperature and moisture sensors of tradition, need not additionally increase again a sensor probe, realize and adopted a sensor to realize the function that humiture is gathered simultaneously and monitored, and adopt fan to lower the temperature and dehumidification treatments, need not additionally increase dehumidification equipment, can carry out Real-Time Monitoring to the humiture of electric automobile power battery bag, can carry out real-time monitoring to the humiture of electric automobile power battery bag again, also cost and the complexity of product have been reduced, improve the reliability of humiture collection monitoring.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the electric automobile power battery bag temperature and humidity monitoring system of an embodiment of the utility model.
Fig. 2 is the structural representation of the SHT11 of the utility model employing.
Fig. 3 is the SHT11 of the utility model employing and the hardware line schematic diagram of MCU.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are only for the utility model is described, and can not be used for limiting scope of the present utility model.
Fig. 1 is according to the structural representation of the electric automobile power battery bag temperature and humidity monitoring system of an embodiment of the utility model.As seen from Figure 1, this system comprises Temperature Humidity Sensor 1, battery detection unit 2, battery control unit 3 and fan 4.
The electric automobile power battery bag temperature and humidity monitoring system that the present embodiment proposes, adopt Temperature Humidity Sensor to replace the discrete temperature and moisture sensors of tradition, need not additionally increase again a sensor probe, realize and adopted a sensor to realize the function that humiture is gathered simultaneously and monitored, and adopt fan to lower the temperature and dehumidification treatments, need not additionally increase dehumidification equipment, can carry out Real-Time Monitoring to the humiture of electric automobile power battery bag, can carry out real-time monitoring to the humiture of electric automobile power battery bag again, also cost and the complexity of product have been reduced, improve the reliability of humiture collection monitoring.
Cause battery to damage in order to prevent that humiture is too high, electric automobile power battery bag temperature and humidity monitoring system can also comprise both positive and negative polarity contactor 5, be connected to battery control unit 3, for reach the electrical source of power of accepting the control of battery control unit 3 when the second temperature threshold of setting or described humidity reach the second humidity threshold value of setting and disconnect electric automobile power battery bag in described temperature.
In addition, owing to often there being multiple battery units in electric automobile power battery bag, the only humiture situation in often can not comprehensive monitoring electric automobile power battery bag with a Temperature Humidity Sensor, so Temperature Humidity Sensor 1 and battery detection unit 2 can be multiple and connect one to one, and each battery correspondence in electric automobile power battery bag disposes a Temperature Humidity Sensor 1.
In order to submit operating personnel's attention in the time that humiture exceeds certain limit, this system can also comprise alarm, is connected to battery control unit, sends a warning for accepting the control of battery control unit.
In order to show in real time described temperature and described humidity, this system can also comprise display device, is connected to battery control unit, for showing in real time described temperature and described humidity.
Further illustrate the utility model with an object lesson below.
In the utility model, Temperature Humidity Sensor can adopt monolithic whole school accurate set of digits accepted way of doing sth temperature and moisture sensors, and concrete model is chosen as SHT11.SHT11 is a digital hygro sensor that Scnsirion company of Switzerland releases, it integrates temperature sensor and humidity sensor, and the system that therefore adopts SHT11 to carry out humiture Real-Time Monitoring has the advantages such as precision is high, cost is low, volume is little, interface is simple.SHT11 chip internal is integrated in addition 14 A/D converters, and adopt digital signal output, therefore antijamming capability is also high than similar chip.This chip principal feature is as follows:
Highly integrated, the functions such as temperature sensing, humidity, signal conversion, A/D conversion and well heater are integrated on a chip;
Two wires digital serial interface SCK and DATA are provided, and interface is simple, supports CRC transfer check, and transmission reliability is high;
Measuring accuracy programmable regulating, built-in A/D converter (resolution is 8～12, can pass through the programming to chip internal register and select);
Measuring accuracy is high, due to integrated Temperature Humidity Sensor of while, can provide temperature and humidity compensation;
Package dimension extra small (7.62mm × 5.08mm × 2.5mm), after measurement and sign off, proceeds to low-power consumption mode automatically;
High reliability, adopts CMOSens technique.
SHT11 is integrated into the functions such as temperature sensing, humidity, signal conversion, A/D conversion on a chip, and its inner structure as shown in Figure 2.This chip comprises a capacitive character condensate humidity sensing element and a temperature-sensing element (device) of making by gap material.These two sensitive elements convert humidity and temperature to electric signal respectively, and first this electric signal enters small signal amplifier and amplify; Then enter the A/D converter of 14; Finally by crossing two-wire serial digital interface output digit signals.SHT11, before dispatching from the factory, can calibrate in constant humidity or isoperibol, and calibration factor is stored in calibration register, and in measuring process, calibration factor meeting automatic calibration is from the signal of sensor.
The core component of the monitoring part of electric automobile power battery bag temperature and humidity monitoring system is MCU(battery detection unit) chip, can select such as AT89C51 of single-chip microcomputer, signals collecting and processing section are made up of SHT11, after entering MCU after gathering conditioning, signal through processing, then sends into BCU(battery control unit by CAN bus).BCU can comprise Threshold unit, the humiture of measuring is carried out to the setting of threshold value, when measurement exceedes limit value, BCU drives control fan to carry out cool-down dehumidification ventilation, when humidity greatly affect power electric automobile electrokinetic cell bag electrical installation when safe BCU can cut off both positive and negative polarity contactor, disconnect electrical source of power.
MCU communicates by two-wire serial digital interface and SHT11, and communication protocol and general I2C bus protocol are incompatible, therefore need to simulate this communication sequential with general purpose microprocessor I/O mouth.Microprocessor is realized by 55 order of the bit codes the control of SHT11.MCU adopts two-wire serial digital interface and Temperature Humidity Sensor chip SHT11 to communicate, so that hardware connects a design is very simple.Because communication protocol is chip producer oneself definition, so in Software for Design, need to use microprocessor general-purpose I/O mouth analogue communications protocols.SHT11 visits by two wires digital serial interface, and hardware interface circuit is very simple.The place should be noted that is: DATA data line needs external pull-up resistor, clock line SCK is for communication synchronization between microprocessor and SHT11, because interface has comprised complete static logic, so to the not requirement of SCK low-limit frequency, when operating voltage is during higher than 4.5V, SCK frequency is up to 10MHz, and when operating voltage is during lower than 4.5V, SCK highest frequency is 1MHz.
Above embodiment is only for the utility model is described, but not to restriction of the present utility model.Although the utility model is had been described in detail with reference to embodiment; but those of ordinary skill in the art is to be understood that; the technical solution of the utility model is carried out to various combinations, revises or is equal to replacement; it does not depart from principle of the present utility model and spirit, within all should be encompassed in the protection domain of the utility model claim.
Claims (8)
1. an electric automobile power battery bag temperature and humidity monitoring system, is characterized in that, this system comprises Temperature Humidity Sensor, battery detection unit, battery control unit and fan;
Temperature Humidity Sensor, is connected to battery detection unit, for gathering the temperature and humidity in electric automobile power battery bag and sending to battery detection unit;
Battery detection unit, is connected between Temperature Humidity Sensor and battery control unit, for described temperature and described humidity are sent to battery control unit;
Battery control unit, receives described temperature and described humidity that battery detection unit sends, and reaches and when the first temperature threshold of setting or described humidity reach the first humidity threshold value of setting, control starting fan in described temperature;
Fan, is connected to battery control unit, starts for accepting the control of battery control unit.
2. system claimed in claim 1, is characterized in that, this system also comprises:
Both positive and negative polarity contactor, be connected to battery control unit, for reach the electrical source of power of accepting the control of battery control unit when the second temperature threshold of setting or described humidity reach the second humidity threshold value of setting and disconnect electric automobile power battery bag in described temperature.
3. system claimed in claim 1, is characterized in that, this system also comprises:
Threshold unit, is connected to battery control unit, for design temperature threshold value and humidity threshold value.
4. system claimed in claim 1, is characterized in that, this system also comprises:
Temperature Humidity Sensor and battery detection unit are multiple and connect one to one.
5. system claimed in claim 4, is characterized in that, the each battery correspondence in electric automobile power battery bag disposes a Temperature Humidity Sensor.
6. system claimed in claim 1, is characterized in that, this system also comprises:
Alarm, is connected to battery control unit, sends a warning for accepting the control of battery control unit.
7. system claimed in claim 1, is characterized in that, this system also comprises:
Display device, is connected to battery control unit, for showing in real time described temperature and described humidity.
8. the system described in claim 1-7 any one, is characterized in that, Temperature Humidity Sensor is monolithic whole school accurate set of digits accepted way of doing sth temperature and moisture sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824691.8U CN203658883U (en) | 2013-12-12 | 2013-12-12 | Temperature and humidity monitoring system for power battery pack of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824691.8U CN203658883U (en) | 2013-12-12 | 2013-12-12 | Temperature and humidity monitoring system for power battery pack of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658883U true CN203658883U (en) | 2014-06-18 |
Family
ID=50925256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824691.8U Expired - Fee Related CN203658883U (en) | 2013-12-12 | 2013-12-12 | Temperature and humidity monitoring system for power battery pack of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169586A (en) * | 2015-09-29 | 2015-12-23 | 上海博笃实业有限公司 | Fire extinguishing system |
| CN111271944A (en) * | 2018-12-04 | 2020-06-12 | 中信国安盟固利动力科技有限公司 | Battery box device with condensation detects and drying function |
| CN114812684A (en) * | 2022-04-29 | 2022-07-29 | 东风时代(武汉)电池系统有限公司 | Method and system for monitoring internal humidity of power battery system |
-
2013
- 2013-12-12 CN CN201320824691.8U patent/CN203658883U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169586A (en) * | 2015-09-29 | 2015-12-23 | 上海博笃实业有限公司 | Fire extinguishing system |
| CN111271944A (en) * | 2018-12-04 | 2020-06-12 | 中信国安盟固利动力科技有限公司 | Battery box device with condensation detects and drying function |
| CN114812684A (en) * | 2022-04-29 | 2022-07-29 | 东风时代(武汉)电池系统有限公司 | Method and system for monitoring internal humidity of power battery system |
| CN114812684B (en) * | 2022-04-29 | 2024-01-30 | 东风时代(武汉)电池系统有限公司 | Method and system for monitoring internal humidity of power battery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103528623A (en) | Multifunctional environment monitor | |
| CN203658883U (en) | Temperature and humidity monitoring system for power battery pack of electric vehicle | |
| CN103822667A (en) | Temperature-humidity acquisition system based on Bluetooth technology | |
| CN203982173U (en) | Energy consumption of vehicles data collector | |
| CN103439370B (en) | The temperature/humiditydetection detection system of drying course | |
| CN202209993U (en) | Warehouse humiture monitoring alarm device | |
| CN202511819U (en) | Wireless alarm device for repository temperature and humidity monitoring | |
| CN203772429U (en) | Single-bus temperature monitoring device | |
| CN206639003U (en) | A kind of high voltage power cable connector temperature wireless checking control device | |
| CN202305458U (en) | Air quality detecting device | |
| CN205691243U (en) | Bluetooth moisture recorder | |
| CN210036969U (en) | RS 485-based mining intrinsically safe infrared thermometer | |
| Zheng et al. | A GSM-based remote temperature and humidity monitoring system for granary | |
| CN204389714U (en) | A kind of weather monitoring instrument realizing Temperature and Humidity based on SHT2X chip | |
| CN203414978U (en) | Active wireless temperature and humidity label | |
| CN203732930U (en) | An energy source data acquisition terminal with two RS485 interfaces | |
| CN207598470U (en) | A kind of soft starter of remote monitoring and water pump integrated protection | |
| CN207751529U (en) | Detection of Air Quality circuit | |
| CN202677161U (en) | Measurement and control apparatus based on Zigbee wireless communication | |
| CN207051187U (en) | Point-type combustible gas detecting device based on infrared gas sensor | |
| CN204576783U (en) | Based on the radio transmitting device of X-bee | |
| CN202189453U (en) | Device used for remotely sensing and monitoring physical quantity of self-organized network with low power consumption | |
| CN205176110U (en) | Intelligent electric power meter | |
| CN204043705U (en) | A kind of portable warm Humidity Detection equipment | |
| CN205537762U (en) | Humiture measuring circuit of prepackage type transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180515 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20211212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |