CN209117751U - A kind of high-precision power battery current sensor with store function - Google Patents
A kind of high-precision power battery current sensor with store function Download PDFInfo
- Publication number
- CN209117751U CN209117751U CN201821767794.4U CN201821767794U CN209117751U CN 209117751 U CN209117751 U CN 209117751U CN 201821767794 U CN201821767794 U CN 201821767794U CN 209117751 U CN209117751 U CN 209117751U
- Authority
- CN
- China
- Prior art keywords
- power battery
- module
- current sensor
- communication module
- analog
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The utility model discloses a kind of high-precision power battery current sensor with store function.It includes sensor body, first communication module, memory module and analog-to-digital conversion module, the signal transmission end of the first communication module is electrically connected with the signal transmission end of power battery management system, the piece of the first communication module selects output end to be electrically connected respectively with the control terminal of analog-to-digital conversion module and memory module, the data input pin of the first communication module is electrically connected with the data output end of analog-to-digital conversion module and memory module respectively, the data output end of the first communication module is electrically connected with the data input pin of memory module, the data input pin of the analog-to-digital conversion module is electrically connected with the output end of sensor body.The utility model compatibility is strong, in the case where not modifying battery management system other devices, can arbitrarily replace current sensor, substantially increase the reusability of product, have the advantages that simple and reliable for structure, low in cost, strong antijamming capability.
Description
Technical field
The utility model belongs to electric automobile power battery group applied technical field, and in particular to a kind of with store function
High-precision power battery current sensor.
Background technique
In electric automobile power battery system, the charging and discharging currents for measuring power battery pack, which would generally be used to electric current, to be passed
Sensor.Due to the material and manufacturing process of current sensor it is more or less there are some differences.For different current senses
The collected data of device, if using identical calculation method, will make calculated electric current occur very big deviation (such as:
Drift, gain etc.).It is owned by higher accuracy using the collected current value of different current sensors in order to improve, usually
Current sensor will be demarcated.In practical applications, the calibrating parameters to current sensor can be stored in power electric
In the storage chip of pond management system, match power battery management system and current sensor.Application method is just in this way
Some problems can be brought:
1. product substitution is poor, the calibrating parameters of current sensor are stored in the storage chip of master control, once it needs more
The current sensor changed deposits the calibrating parameters of current sensor in power battery management system it is necessary to modify, and actually modifies
The process of the calibrating parameters of current sensor in power battery management system is very complicated.
2. power battery management system and matching for current sensor increase equipment management cost；
3. currently used analog signal transmission current signal is easy to be made collected electric current inaccuracy by external interference.
Utility model content
The purpose of this utility model is exactly to provide a kind of band store function to solve deficiency existing for above-mentioned background technique
High-precision power battery current sensor.
The technical solution adopted in the utility model is: a kind of high-precision power battery current sensor with store function,
It further include for being communicated with power battery management system including the sensor body for detecting power battery electric current
One communication module, for the memory module of storage sensor ontology calibrating parameters, for acquiring sensor body temperature and power
The analog-to-digital conversion module of battery current, the signal transmission end of the first communication module and the signal of power battery management system pass
Defeated end electrical connection, the piece of the first communication module select output end electric with the control terminal of analog-to-digital conversion module and memory module respectively
Connection, data output end of the data input pin of the first communication module respectively with analog-to-digital conversion module and memory module are electrically connected
It connects, the data output end of the first communication module is electrically connected with the data input pin of memory module, the analog-to-digital conversion module
Data input pin be electrically connected with the output end of sensor body.
It further, further include isolation module for security protection, described isolation module one end is for connecting power electric
The signal transmission end of pond management system, other end electrical connection first communication module.
Further, the isolation module is isolating transformer.
Further, the first communication module, memory module and analog-to-digital conversion module are integrated on a circuit board.
It further, further include shell, the circuit board and sensor body are installed on enclosure interior, and shell, which is equipped with, to be used
In the connecting terminal for being electrically connected power battery management system and power battery.
It further, further include pedestal, the circuit board and sensor body are mounted on the base, and pedestal is equipped with and is used for
It is electrically connected the connecting terminal of power battery management system and power battery.
Further, the sensor body is Hall-type current sensor or current divider formula current sensor.
The utility model current sensor stores the calibration of current sensor by memory module and analog-to-digital conversion module
Parameter and acquisition current signal, the transmission of signal and data is realized by communication module, makes current sensor and power battery pipe
Reason system is completely independent using the acquisition precision without influencing electric current, so that reaching any power battery management system can obtain
The calibrating parameters of any current sensor are got, and then obtain accurate current value.The utility model improves electric current biography
The compatibility of sensor can arbitrarily replace current sensor, significantly in the case where not modifying battery management system other devices
The reusability for improving product has the advantages that simple and reliable for structure, low in cost, strong antijamming capability.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram.
Fig. 2 is a kind of structural schematic diagram of the utility model.
Fig. 3 is the utility model another kind structural schematic diagram.
In figure: 1- sensor body；2- first communication module；3- memory module；4- analog-to-digital conversion module；5- isolation mode
Block；6- single-chip microcontroller；7- second communication module；8- circuit board；9- shell；10- connecting terminal；11- pedestal；12- current sensor；
13- power battery management system；14- power battery.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
As shown in Figure 1, a kind of high-precision power battery current sensor with store function of the utility model, including be used for
The sensor body 1 for detecting 14 electric current of power battery, further includes first for being communicated with power battery management system 13
Communication module 2, for the memory module 3 of storage sensor ontology calibrating parameters, for acquiring sensor body temperature and power
The analog-to-digital conversion module 4 of battery current, the signal transmission end of the first communication module 2 and the letter of power battery management system 13
The electrical connection of number transmission end, the piece of the first communication module 2 select output end respectively with memory module 3 and analog-to-digital conversion module 4
Control terminal electrical connection, the data input pin of the first communication module 2 number with memory module 3 and analog-to-digital conversion module 4 respectively
It is electrically connected according to output end, the data output end of the first communication module 2 is electrically connected with the data input pin of memory module 3, institute
The data input pin for stating analog-to-digital conversion module 4 is electrically connected with the output end of sensor body 2.
It further include the isolation module 5 for playing protection, lightning protection, filter action, the isolation module 5 one in above scheme
Hold the signal transmission end for connecting power battery management system 13, other end electrical connection first communication module 2, isolation module 5
For isolating transformer, the model VGT10/9EE-204S2P4 of selection.
In above scheme, first communication module 2, memory module 3, analog-to-digital conversion module 4 and isolation module 5 are integrated in one
It is small in size on a circuit board 8, facilitate installation.The model LTC6820 of first communication module 2, the model of analog-to-digital conversion module 4
For AD7190, memory module 3 is that conventional electronics erases formula programmable read only memory (EEPROM).
In above scheme, sensor body 2 can be Hall-type current sensor or current divider formula current sensor.According to
The difference of sensor body structure, current sensor structure can be there are many forms, such as when sensor body 1 is Hall-type electric current
When sensor, circuit board 8 and sensor body 1 are installed on inside shell 9, and shell 9 is equipped with for being electrically connected power electric
The connecting terminal 10 of pond management system and power battery, as shown in Figure 2；Such as when the electric current that sensor body 1 is current divider formula passes
When sensor, circuit board 8 and sensor body 1 are installed on pedestal 11, and pedestal 11 is equipped with for being electrically connected power battery
The connecting terminal 10 of management system and power battery, as shown in Figure 3.
The utility model is in application, current sensor 12 is connected with the power battery management system 13 of electric car, power
Battery management system 13 includes single-chip microcontroller 6 (MCU) and second communication module 7, the control terminal and data transmission terminal of the single-chip microcontroller 6
It is electrically connected respectively with the control terminal of second communication module 7 and data transmission terminal, the signal transmission end electricity of the second communication module 7
Connect the signal transmission end of first communication module 2.According to actual needs, second communication module 7 also can be set in current sense
Inside device 12, the model LTC6820 of second communication module 7.Analog-to-digital conversion module 4 acquire sensor body temperature signal and
The current signal of the power battery of sensor body detection, the calibrating parameters of 3 storage sensor ontology of memory module.Single-chip microcontroller 6
SPI level signal is converted to differential signal by second communication module 7 to improve signal by output data and SPI level signal
The anti-interference ability of transmission, then transfers data to current sensor by differential signal, and current sensor passes through in it again
First communication module 2 differential signal dress is changed to SPI level signal reads or be written memory module 3 and analog-to-digital conversion mould
Block 4.When it is high level that first communication module 2, which are selected output end, single-chip microcontroller can be read or be written the calibration in memory module 3
Parameter, the controllable current signal read in analog-to-digital conversion module 4 of single-chip microcontroller and temperature letter when it is low level that piece, which selects output end,
Number, after single-chip microcontroller 6 reads effective current sensor data, true current value can be calculated.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (7)
1. a kind of high-precision power battery current sensor with store function, including the sensing for detecting power battery electric current
Device ontology (1), it is characterised in that: further include first communication module (2) for being communicated with power battery management system, use
In the memory module (3) of storage sensor ontology calibrating parameters, for acquiring sensor body temperature and power battery electric current
Analog-to-digital conversion module (4), the signal transmission end of the first communication module (2) and the signal of power battery management system (13) pass
The electrical connection of defeated end, the piece of the first communication module (2) select output end respectively with memory module (3) and analog-to-digital conversion module (4)
Control terminal electrical connection, the data input pin of the first communication module (2) respectively with memory module (3) and analog-to-digital conversion module
(4) data output end electrical connection, the data output end of the first communication module (2) and the data of memory module (3) input
End electrical connection, the data input pin of the analog-to-digital conversion module (4) are electrically connected with the output end of sensor body (1).
2. the high-precision power battery current sensor according to claim 1 with store function, it is characterised in that: also wrap
Include the isolation module (5) for security protection, described isolation module (5) one end for connect power battery management system (13),
The other end is electrically connected the signal transmission end of first communication module (2).
3. the high-precision power battery current sensor according to claim 2 with store function, it is characterised in that: described
Isolation module (5) is isolating transformer.
4. the high-precision power battery current sensor according to claim 1 with store function, it is characterised in that: described
First communication module (2), memory module (3) and analog-to-digital conversion module (4) are integrated on a circuit board (8).
5. the high-precision power battery current sensor according to claim 4 with store function, it is characterised in that: also wrap
It includes shell (9), the circuit board (8) and sensor body (1) are installed on shell (9) inside, and shell (9) is equipped with for distinguishing
It is electrically connected the connecting terminal (10) of power battery management system and power battery.
6. the high-precision power battery current sensor according to claim 4 with store function, it is characterised in that: also wrap
It includes pedestal (11), the circuit board (8) and sensor body (1) are installed on pedestal (11), and pedestal (11) is equipped with for dividing
Not electricity Lian Jie power battery management system and power battery connecting terminal (10).
7. the high-precision power battery current sensor according to claim 1 with store function, it is characterised in that: described
Sensor body (1) is Hall-type current sensor or current divider formula current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767794.4U CN209117751U (en) | 2018-10-29 | 2018-10-29 | A kind of high-precision power battery current sensor with store function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767794.4U CN209117751U (en) | 2018-10-29 | 2018-10-29 | A kind of high-precision power battery current sensor with store function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117751U true CN209117751U (en) | 2019-07-16 |
Family
ID=67202913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821767794.4U Active CN209117751U (en) | 2018-10-29 | 2018-10-29 | A kind of high-precision power battery current sensor with store function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984257A (en) * | 2021-10-28 | 2022-01-28 | 南京懂玫驱动技术有限公司 | Torque sensor and data processing method of torque sensor |
| CN114801877A (en) * | 2022-06-23 | 2022-07-29 | 深圳市菲尼基科技有限公司 | Monitoring system of electric vehicle power battery pack and electric vehicle |
-
2018
- 2018-10-29 CN CN201821767794.4U patent/CN209117751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984257A (en) * | 2021-10-28 | 2022-01-28 | 南京懂玫驱动技术有限公司 | Torque sensor and data processing method of torque sensor |
| CN114801877A (en) * | 2022-06-23 | 2022-07-29 | 深圳市菲尼基科技有限公司 | Monitoring system of electric vehicle power battery pack and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102680935B (en) | Intelligent current transformer system for online precision monitoring | |
| CN209117751U (en) | A kind of high-precision power battery current sensor with store function | |
| CN101476903A (en) | General-purpose interface collection system of sensor | |
| CN106871961A (en) | Overall process, round-the-clock electromagnetic environment monitoring system and method | |
| CN108896108A (en) | A kind of decoupled sensor arrangement and online gas detector | |
| EP2898333B1 (en) | Voltage sensor device | |
| CN208568958U (en) | A kind of temperature of electric transmission line detection system | |
| CN203365535U (en) | Vehicle current collection system and car having same | |
| CN209182489U (en) | A kind of direct current energy meter current channel conditioning circuit | |
| CN208334493U (en) | A kind of current collection circuit for cell management system of electric automobile | |
| CN205691243U (en) | Bluetooth moisture recorder | |
| CN212280233U (en) | Rechargeable formula meteorological monitoring intelligence umbrella | |
| Zhang et al. | Design and implementation of smart home monitoring system based on msp430 | |
| CN103353471A (en) | Device for measuring air pollution | |
| CN106908646B (en) | Portable arrester live detection instrument based on wireless synchronization technology | |
| CN104019869B (en) | The wireless automatic calibrator of fuel charger capacity of vacuum heat-preserving standard capacity measure | |
| CN209417149U (en) | A kind of integrated high-pressure electric energy metering device | |
| CN210221276U (en) | Electronic scale with high reliability | |
| CN203414503U (en) | Self-checking adapter of automatic detection system based on PXI bus | |
| CN107422182A (en) | Direct current energy meter | |
| CN208239405U (en) | A kind of decoupled sensor arrangement and online gas detector | |
| CN106597091A (en) | DC electric energy meter | |
| CN203630377U (en) | Weather station of unibus structure | |
| CN205246745U (en) | Electrified detecting instrument of portable arrester based on wireless synchronization technique | |
| CN202578671U (en) | Temperature sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430056 No. 339 Chaoyang Avenue, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee after: Zhixin Control System Co.,Ltd. Address before: 430056 No. 339 Chaoyang Avenue, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee before: DONGFENG HANGSHENG (WUHAN) AUTOMOTIVE CONTROL SYSTEM Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |