CN202255670U - Power battery temperature testing device and system - Google Patents
Power battery temperature testing device and system Download PDFInfo
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- CN202255670U CN202255670U CN2011202324011U CN201120232401U CN202255670U CN 202255670 U CN202255670 U CN 202255670U CN 2011202324011 U CN2011202324011 U CN 2011202324011U CN 201120232401 U CN201120232401 U CN 201120232401U CN 202255670 U CN202255670 U CN 202255670U
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Abstract
The embodiment of the utility model discloses a power battery temperature testing device and a system. The device comprises temperature sensors, an analog switch group, an analog-digital converter and a microcontroller, wherein the temperature sensors are arranged in the position to be tested of groups of power batteries in a battery box; the analog switch group sets strobe matrix according to the arrangement information of the temperature sensors and is connected with the microcontroller; the analog-digital converter is respectively connected with the temperature sensors and the microcontroller and carries out analog-digital conversion to the temperature data collected by the temperature sensors receiving strobe instructions; and the microcontroller controls the temperature sensors, the analog switch group and the analog-digital converter to act. The device realizes dynamic monitoring for the temperature of the power batteries, reduces the possibility of failure of the power batteries in use due to the temperature, and therefore reduces the environmental pollution and the maintenance cost.
Description
Technical field
The utility model relates to the batteries of electric automobile monitoring technical field, more particularly, relates to a kind of temperature of powered cell proving installation and system.
Background technology
Electrokinetic cell is the power supply that power resources are provided for instrument; Promotion and application along with electric automobile; Whether the stable performance of battery is related to the operation continuation and the security of electric automobile, thereby the capacity of electrokinetic cell and power supply performance become the emphasis that people pay close attention to.
Mostly electrokinetic cell is sealed type lead acid battery and lithium iron phosphate storage battery; In the electric automobile operation is in the electrokinetic cell charge and discharge process; Because the individual quality of battery there are differences and residing physical environment is different, be prone to that to discharge and recharge integral status uneven and the too high problem of local temperature occurs.
To above-mentioned situation, existing treating method is after unusual even overheated burning appears discharging and recharging in battery, just battery to be overhauled or abandons, and not only causes the waste of battery that environment is polluted hidden danger and increased maintenance cost.
The utility model content
In view of this, the utility model provides a kind of temperature of powered cell proving installation and system, to the temperature parameter dynamic monitoring under the electrokinetic cell charging and discharging state, to realize finding that in time battery failures reduces the battery waste, reduces maintenance cost.
A kind of temperature of powered cell proving installation comprises: temperature sensor, analog switch group, analog to digital converter and microcontroller, wherein:
Said temperature sensor is installed in said to the position to be measured of electrokinetic cell in groups in the battery case;
Said analog switch group is according to the said temperature sensor information architecture gating matrix of arranging, and is connected with microcontroller;
Said analog to digital converter is connected with said microcontroller with said temperature sensor respectively, and will receive the temperature data that the temperature sensor of gating instruction gathers and carry out analog to digital conversion;
Said microprocessor is controlled said temperature sensor, analog switch group, analog to digital converter action.
In order to improve such scheme, the installing temperature sensor in position to be measured of electrokinetic cell in groups is specially:
To temperature sensor is installed in cell, single Battery pack and the battery case surface position to be measured of electrokinetic cell in groups.
Preferably, when said temperature sensor is specially thermistor, also comprise: based on the resistance measuring circuit of electric resistance partial pressure mensuration.A kind of temperature of powered cell test macro comprises: the electrokinetic cell in groups in server, communication module, the battery case, temperature sensor, analog switch group and microcontroller, wherein:
Said temperature sensor is installed in said to the position to be measured of electrokinetic cell in groups in the battery case;
Said analog switch group is according to the said temperature sensor information architecture gating matrix of arranging, and is connected with microcontroller;
Said analog to digital converter is connected with said microcontroller with said temperature sensor respectively, and will receive the temperature data that the temperature sensor of gating instruction gathers and carry out analog to digital conversion;
Said microprocessor is connected with said communication module, with the temperature data uploading that receives to said server;
Said server is used for, and draws temperature curve and generates temperature field analysis figure with the said temperature data that discharges and recharges after time point and the said analog to digital conversion.
Can find out from above-mentioned technical scheme; The utility model embodiment (is preferably each battery through the diverse location of the electrokinetic cell in battery case; Electric battery and battery case) temperature measure, and combine the test duration point poll gating of analog switch in the time of discharging and recharging, with the temperature data uploading that collects to server, draw temperature curve and generate temperature field analysis figure and be provided with analyzing; Thereby realize temperature dynamic monitoring to electrokinetic cell; When unusual (too high or too low) appears in battery temperature, take some countermeasures, because of the possibility of temperature fault, and then reduce environmental pollution and reduce maintenance cost when reducing electrokinetic cell and using.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the disclosed a kind of temperature of powered cell proving installation structural representation of the utility model embodiment;
Fig. 2 is the disclosed a kind of temperature of powered cell proving installation structural representation of the another embodiment of the utility model;
Fig. 3 is the disclosed a kind of temperature of powered cell test system structure synoptic diagram of the utility model embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of temperature of powered cell proving installation and system, to the temperature parameter dynamic monitoring under the electrokinetic cell charging and discharging state, to realize finding that in time battery failures reduces the battery waste, reduces maintenance cost.
Fig. 1 shows a kind of temperature of powered cell proving installation, comprising: temperature sensor 11, analog switch group, analog to digital converter 13 and microcontroller 14, wherein:
Said temperature sensor 11 is installed in said to the position to be measured of electrokinetic cell in groups in the battery case;
Illustrate; If the power supply power battery box of electric automobile is made up of four power brick, each power brick is made up of 25 Battery pack groups, and each electric battery is closely overstock by 4 lithium batteries and forms; In order to obtain the distribution situation of inner each regional temperature of battery case; Place some temperature sensors on the surface of every battery, for electric battery, need to five outer face laying temperature sensors of battery case surface of contact;
Said analog switch group 12 is according to the said temperature sensor information architecture gating matrix of arranging, and is connected with microcontroller 14;
In the preset test duration, each temperature sensor is carried out poll formula gating, be not limited to this kind gating form certainly.
Said analog to digital converter 13 is connected with said microcontroller 14 with said temperature sensor 11 respectively, and will receive the temperature data that the temperature sensor of gating instruction gathers and carry out analog to digital conversion;
The said temperature sensor of said microprocessor 14 controls, analog switch group, analog to digital converter action.
As preferably; Need monitoring and gather the environment temperature of analog switch and the magnitude of voltage of said analog switch pin; Because analog switch work produces heat and analog switch failure and other reasons, will have influence on the degree of accuracy of detection, thereby need to be grasped the ambient temperature situations of analog switch; And when analog switch environment temperature or magnitude of voltage are unusual, debug or keep in repair.
Fig. 2 shows another temperature of powered cell proving installation, comprising:
Thermistor 21, analog switch group 22, analog to digital converter 23 and microcontroller 24, based on the resistance measuring circuit 25 of electric resistance partial pressure mensuration, the same parts explanation is described referring to a last embodiment, repeats no more, and only explains with regard to difference at present:
Thermistor possesses the temperature-responsive coefficient of higher resistivity and 4%-6% as semiconductor material, seeing that the battery-arrangements of electric automobile is tight and the test space is limited, thermistor adopts as the less preferred version of size in the present embodiment.
Said thermistor satisfies the requirement of high sensitivity, high resolving power and small size, in the limited electric automobile group of measurement space, uses, yet does not limit to, and for example, thermopair also can use, and no longer too much gives unnecessary details.
Preferred as further, said thermistor is negative temperature coefficient thermistor (NTC); Analog switch in the said analog switch group is preferably the ADG1406 type; In view of the consideration to sampling precision and error, said analog to digital converter 43 is specially the AD161S626 type; Said microcontroller is specially the P89LPC938 chip of Philips company.
The precision resistance of 0.5% precision 2K Ω is connected with NTC to be measured, gather the dividing potential drop on the precision resistance, can obtain the resistance of NTC to be measured through high-resolution analog to digital converter.Simultaneously, the reference voltage of analog to digital converter and the power supply of NTC are same power supply, help reducing the influence that power-supply fluctuation causes so more.
Fig. 3 shows a kind of temperature of powered cell test macro, comprising:
Electrokinetic cell in groups 33 in server 31, communication module 32, the battery case, temperature sensor 34, analog switch group 35, analog to digital converter 36 and microcontroller 37, wherein:
Said temperature sensor adorn 34 be located at said to the position to be measured of electrokinetic cell 33 in groups in the battery case;
Said analog switch group 35 is according to the said temperature sensor 34 information architecture gating matrix of arranging, and is connected with microcontroller 37;
Said analog to digital converter 36 is connected with said microcontroller 37 with said temperature sensor 34 respectively, and will receive the temperature data that the temperature sensor 34 of gating instruction gathered and carry out analog to digital conversion;
Said microprocessor 37 is connected with said communication module 32, with the temperature data uploading that receives to said server 31;
Said server 31 is used for, and draws temperature curve and generates temperature field analysis figure with the said temperature data that discharges and recharges after time point and the said analog to digital conversion.
When said temperature sensor 34 is specially thermistor, also comprise: based on the resistance measuring circuit 38 of electric resistance partial pressure mensuration.
The installation position of said temperature sensor 34 is specially the cell of said electrokinetic cell in groups, single Battery pack and battery case surface position installing to be measured temperature sensor.
Need to prove that preferably as foundation, communication module 32 is accomplished the temperature data transmission with the RS485 communication mode with time requirement and transmission speed.
Utilize the preset resistance change curve, that is, the resistance curve that the non-fault battery normally discharges and recharges thermistor is a foundation, and resistance value is estimated the correcting measuring resistance value, to reach the effect that reduces error.
Said temperature curve mathematical model capable of using makes up temperature field analysis figure, thus battle line temperature variations and in time discovery temperature anomaly point intuitively.
More detailed explanation is no longer too much given unnecessary details referring to diagram and the explanation thereof of Fig. 1-Fig. 2 here.
In sum:
The utility model embodiment (is preferably each battery through the diverse location of the electrokinetic cell in battery case; Electric battery and battery case) temperature measure; And combine the test duration of analog switch in the time of discharging and recharging to put the poll gating; With the temperature data uploading that collects to server, draw temperature curve and generate temperature field analysis figure and be provided with analyzing, thereby realize temperature dynamic monitoring to electrokinetic cell, when unusual (too high or too low) appears in battery temperature, take some countermeasures; Because of the possibility of temperature fault, and then reduce environmental pollution and reduce maintenance cost when reducing electrokinetic cell and using.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a temperature of powered cell proving installation is characterized in that, comprising: temperature sensor, analog switch group, analog to digital converter and microcontroller, wherein:
Said temperature sensor is installed in said to the position to be measured of electrokinetic cell in groups in the battery case;
Said analog switch group is according to the said temperature sensor information architecture gating matrix of arranging, and is connected with microcontroller;
Said analog to digital converter is connected with said microcontroller with said temperature sensor respectively, and will receive the temperature data that the temperature sensor of gating instruction gathers and carry out analog to digital conversion;
Said microprocessor is controlled said temperature sensor, analog switch group, analog to digital converter action.
2. device according to claim 1 is characterized in that, the installing temperature sensor in position to be measured of electrokinetic cell in groups is specially:
To temperature sensor is installed in cell, single Battery pack and the battery case surface position to be measured of electrokinetic cell in groups.
3. device according to claim 1 is characterized in that, when said temperature sensor is specially thermistor, also comprises: based on the resistance measuring circuit of electric resistance partial pressure mensuration.
4. a temperature of powered cell test macro is characterized in that, comprising: the electrokinetic cell in groups in server, communication module, the battery case, temperature sensor, analog switch group and microcontroller, wherein:
Said temperature sensor is installed in said to the position to be measured of electrokinetic cell in groups in the battery case;
Said analog switch group is according to the said temperature sensor information architecture gating matrix of arranging, and is connected with microcontroller;
Said analog to digital converter is connected with said microcontroller with said temperature sensor respectively, and will receive the temperature data that the temperature sensor of gating instruction gathers and carry out analog to digital conversion;
Said microprocessor is connected with said communication module, with the temperature data uploading that receives to said server;
Said server is used for, and draws temperature curve and generates temperature field analysis figure with the said temperature data that discharges and recharges after time point and the said analog to digital conversion.
5. system according to claim 4 is characterized in that, when said temperature sensor is specially thermistor, also comprises: based on the resistance measuring circuit of electric resistance partial pressure mensuration.
6. system according to claim 4 is characterized in that, the installation position of temperature sensor is specially the cell of said electrokinetic cell in groups, single Battery pack and battery case surface position installing to be measured temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202324011U CN202255670U (en) | 2011-07-04 | 2011-07-04 | Power battery temperature testing device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202324011U CN202255670U (en) | 2011-07-04 | 2011-07-04 | Power battery temperature testing device and system |
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| CN202255670U true CN202255670U (en) | 2012-05-30 |
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| CN2011202324011U Expired - Fee Related CN202255670U (en) | 2011-07-04 | 2011-07-04 | Power battery temperature testing device and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158594A (en) * | 2015-07-30 | 2015-12-16 | 福建星云电子股份有限公司 | High-low-temperature simulation system and method used for simulating thermistor detection |
| CN109758128A (en) * | 2019-02-27 | 2019-05-17 | 深圳和而泰数据资源与云技术有限公司 | A kind of detection system and its control method |
| CN111342153A (en) * | 2020-03-16 | 2020-06-26 | 北京理工大学 | Safety early warning system for lithium ion power battery |
| CN109758128B (en) * | 2019-02-27 | 2024-04-12 | 深圳和而泰智能家电控制器有限公司 | Detection system and control method thereof |
-
2011
- 2011-07-04 CN CN2011202324011U patent/CN202255670U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158594A (en) * | 2015-07-30 | 2015-12-16 | 福建星云电子股份有限公司 | High-low-temperature simulation system and method used for simulating thermistor detection |
| CN109758128A (en) * | 2019-02-27 | 2019-05-17 | 深圳和而泰数据资源与云技术有限公司 | A kind of detection system and its control method |
| CN109758128B (en) * | 2019-02-27 | 2024-04-12 | 深圳和而泰智能家电控制器有限公司 | Detection system and control method thereof |
| CN111342153A (en) * | 2020-03-16 | 2020-06-26 | 北京理工大学 | Safety early warning system for lithium ion power battery |
| CN111342153B (en) * | 2020-03-16 | 2021-03-26 | 北京理工大学 | Safety early warning system for lithium ion power battery |
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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: 20120530 Termination date: 20160704 |
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| CF01 | Termination of patent right due to non-payment of annual fee |