CN204924491U - Batteries of electric vehicle management system's temperature acquisition device - Google Patents
Batteries of electric vehicle management system's temperature acquisition device Download PDFInfo
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- CN204924491U CN204924491U CN201520321384.7U CN201520321384U CN204924491U CN 204924491 U CN204924491 U CN 204924491U CN 201520321384 U CN201520321384 U CN 201520321384U CN 204924491 U CN204924491 U CN 204924491U
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- electric automobile
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- 238000000034 method Methods 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 102000001253 Protein Kinase Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a batteries of electric vehicle management system's temperature acquisition device, include: the MCU module, at least one temperature acquisition module, temperature acquisition module includes a plurality of digital temperature sensor and will be a plurality of the parallelly connected connecting wire together of digit temperature sensor, connecting wire's signal line with the MCU module is connected, CAN interface module, CAN interface module with the MCU module is connected, and power module, power module does MCU module, a plurality of the digit temperature sensor with the CAN interface module power supply. The utility model discloses a batteries of electric vehicle management system's temperature acquisition device, the temperature that adopts a plurality of digital temperature sensor to gather battery cell has high accuracy, small, the expense low, the uniformity is good, the reliability is high advantage.
Description
Technical field
The utility model relates to electric automobile field, particularly relates to a kind of temperature collecting device of cell management system of electric automobile.
Background technology
The temperature collecting device of cell management system of electric automobile is mainly used in the temperature of the battery of each the joint monomer gathering electrokinetic cell, and is uploaded to controller by can bus.The temperature data that controller is uploaded by temperature collecting device, judges that each cell charges, whether discharge temp is normal, and makes protection.At present the collection of the temperature of cell is sampled with thermistor usually, by the signal of sampling through Signal-regulated kinase, simulating signal is converted to the input port that digital signal delivers to single-chip microcomputer by reference module and a/d modular converter, jointly complete temperature acquisition, single-chip microcomputer gives controller by 485 communications temperature data uploading again.Number in actual applications due to cell is many, if such as one case electrokinetic cell has 24 cells, and each thermistor needs 2 lines, then at least needs 48 lines, respectively from each temperature acquisition point, guide to temperature collecting device, and the line like this near the place of temperature collecting device is just a lot, the space needed is large, it is very large that battery case needs do, and cause the course continuation mileage of car load low, battery case cost is high.Secondly adopt the temperature collecting device of thermistor, all need to demarcate when dispatching from the factory, operate more loaded down with trivial details being unfavorable for produces in batches.Again, because the temperature acquisition line had when reality uses is long, simulating signal ratio is easier to be disturbed, and causes the temperature controller false alarm gathered.Also to upload temperature data slow for useful 485 communication modes, and communication error rate is high.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, provides the temperature collecting device of the cell management system of electric automobile that a kind of volume is little, precision is high, reliability is high.
In order to solve the problems of the technologies described above, the temperature collecting device of a kind of cell management system of electric automobile provided by the utility model, comprising:
MCU module;
At least one temperature collect module, the connection wire that described temperature collect module comprises some digital temperature sensors and is connected in parallel by some described digital temperature sensors, the signal wire of described connection wire is connected with described MCU module;
CAN interface module, described CAN interface module is connected with described MCU module; And
Power module, described power module is described MCU module, some described digital temperature sensors and described CAN interface module are powered.
Wherein in an embodiment, described digital temperature sensor is DS18B20 digital temperature sensor.
Wherein in an embodiment, each described temperature collect module comprises 8 ~ 20 described digital temperature sensors.
Wherein in an embodiment, between the signal wire of described connection wire and described MCU module, be provided with amplifying circuit.
Wherein in an embodiment, described temperature collect module is 2 ~ 8.
Wherein in an embodiment, described temperature collecting device also comprises address and arranges module, and described address arranges module and is connected with described MCU module.
Compared with prior art, the temperature collecting device of cell management system of electric automobile of the present utility model, some digital temperature sensors are adopted to gather the temperature of cell, the temperature signal that some digital temperature sensors gather is through connecting wire transmission to MCU module, temperature signal, after MCU module process, transfers to master controller through CAN interface module.Compared with prior art, the advantage that temperature collecting device of the present utility model has high precision, volume is little, expense is low, consistance is good, reliability is high.
The beneficial effect that the utility model additional technical feature has will be described in this instructions embodiment part.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the temperature collecting device of cell management system of electric automobile in the utility model embodiment;
Fig. 2 is the temperature collect module schematic diagram of the temperature collecting device of cell management system of electric automobile in the utility model embodiment;
Fig. 3 is MCU module and the peripheral circuit circuit diagram thereof of the temperature collecting device of cell management system of electric automobile in the utility model embodiment;
Fig. 4 is the CAN interface module circuit diagram of the temperature collecting device of cell management system of electric automobile in the utility model embodiment;
Fig. 5 is that the address of the temperature collecting device of cell management system of electric automobile in the utility model embodiment arranges module circuit diagram;
Fig. 6 is the power module circuitry figure of the temperature collecting device of cell management system of electric automobile in the utility model embodiment.
Description of reference numerals: 10, MCU module; 20, temperature collect module; 21, digital temperature sensor; 22, amplifying circuit; 30, CAN interface module; 40, power module; 50, address arranges module.
Embodiment
And the utility model is described in detail below with reference to the accompanying drawings in conjunction with the embodiments.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
As shown in Figure 1, the temperature collecting device of the cell management system of electric automobile in one of them embodiment of the utility model comprises: MCU module 10, temperature collect module 20, CAN interface module 30 and power module 40.
Wherein, temperature collect module 20 is for collecting temperature signal, and the quantity of temperature collect module 20 is at least one, is preferably 2 ~ 8.In the present embodiment, the quantity of temperature collect module 20 is 6.Fig. 2 is the schematic diagram of the temperature collect module 20 in the present embodiment, the connection wire that each described temperature collect module 20 comprises some digital temperature sensors 21 and is connected in parallel by some described digital temperature sensors 21, described connection wire comprises power lead L1, signal wire L2 and ground wire L3, and signal wire L2 is connected with described MCU module 10.Digital temperature sensor 21 is preferably DS18B20 digital temperature sensor, and DS18B20 digital temperature sensor has the advantage that precision is high, volume is little and consistance is good.The quantity that each described temperature collect module 20 comprises described digital temperature sensor 21 is preferably 8 ~ 20.More preferably, amplifying circuit 22 is provided with between the signal wire of described connection wire and described MCU module 10.
Described CAN interface module 30 is connected with described MCU module 10, and CAN interface module 30 is for reporting to master controller by temperature signal.
Described power module 40 is powered for described MCU module 10, some described digital temperature sensors 21 and described CAN interface module 30.
More preferably, described temperature collecting device also comprises address and arranges module 50, and described address arranges module 50 and is connected with described MCU module 10.Address arranges module 50 for arranging mailing address.
The temperature collecting device of the cell management system of electric automobile of the utility model embodiment, some digital temperature sensors are adopted to gather the temperature of cell, the temperature signal that some digital temperature sensors gather is through connecting wire transmission to MCU module, temperature signal, after MCU module process, transfers to master controller through CAN interface module.Compared with prior art, the advantage that temperature collecting device of the present utility model has high precision, volume is little, expense is low, consistance is good, reliability is high.
Fig. 3 is the circuit diagram of MCU module 10 in the utility model embodiment and external circuit, and as shown in Figure 3, the signal of data line L2 inputs MCU module 10 after triode Q1, Q2, Q3, Q4, Q5, Q6 amplify.
Fig. 4 is the circuit diagram of the CAN interface module 30 of temperature collecting device in the utility model embodiment.The primary processor that CAN interface module 30 is made up of the high-speed CAN connection wire transceiver iso1050 height of band isolation is connected the signalling channel between wire with physics CAN, and with the addition of ESD protective device nup2105 at physical connection cable port.
Fig. 5 is the circuit diagram that the address of temperature collecting device in the utility model embodiment arranges module 50.Address arranges the mailing address of module 50 by the toggle switch setting controller of 4.
Fig. 6 is the circuit diagram of the power module 40 of temperature collecting device in the utility model embodiment.Power module 40 adopts tps5430 power supply chip to be that 5V voltage is powered to MCU module 10 by the 24V voltage transitions of Vehicular accumulator cell power supply, and is divided into 6 groups to power to the digital temperature sensor 21 of each temperature collect module 20 after inductance.It is the DCDC voltage isolation module that B0505S-1W is formed that this 5v also gives model, and this group module provides one group of 5V VDD-to-VSS of isolation, supply CAN interface module 30.The input end of power unit realizes overcurrent protection by resettable fuse f1; Anti-reverse connecting protection is realized by diode d1.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (6)
1. a temperature collecting device for cell management system of electric automobile, is characterized in that, comprising:
MCU module (10);
At least one temperature collect module (20), the connection wire that described temperature collect module (20) comprises some digital temperature sensors (21) and some described digital temperature sensors (21) is connected in parallel, the signal wire of described connection wire is connected with described MCU module (10);
CAN interface module (30), described CAN interface module (30) is connected with described MCU module (10); And
Power module (40), described power module (40) is described MCU module (10), some described digital temperature sensors (21) and described CAN interface module (30) power supply.
2. the temperature collecting device of cell management system of electric automobile according to claim 1, is characterized in that, described digital temperature sensor (21) is DS18B20 digital temperature sensor.
3. the temperature collecting device of cell management system of electric automobile according to claim 1, is characterized in that, each described temperature collect module (20) comprises 8 ~ 20 described digital temperature sensors (21).
4. the temperature collecting device of cell management system of electric automobile according to claim 1, is characterized in that, is provided with amplifying circuit (22) between the signal wire of described connection wire and described MCU module (10).
5. the temperature collecting device of cell management system of electric automobile according to claim 1, is characterized in that, described temperature collect module (20) is 2 ~ 8.
6. the temperature collecting device of cell management system of electric automobile as claimed in any of claims 1 to 5, it is characterized in that, described temperature collecting device also comprises address and arranges module (50), and described address arranges module (50) and is connected with described MCU module (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321384.7U CN204924491U (en) | 2015-05-18 | 2015-05-18 | Batteries of electric vehicle management system's temperature acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321384.7U CN204924491U (en) | 2015-05-18 | 2015-05-18 | Batteries of electric vehicle management system's temperature acquisition device |
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| CN204924491U true CN204924491U (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800172A (en) * | 2017-11-20 | 2018-03-13 | 电子科技大学 | A kind of data collecting system of batteries of electric automobile module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800172A (en) * | 2017-11-20 | 2018-03-13 | 电子科技大学 | A kind of data collecting system of batteries of electric automobile module |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |