CN212410090U - Electric automobile collision test state monitoring device - Google Patents
Electric automobile collision test state monitoring device Download PDFInfo
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- CN212410090U CN212410090U CN202021178485.0U CN202021178485U CN212410090U CN 212410090 U CN212410090 U CN 212410090U CN 202021178485 U CN202021178485 U CN 202021178485U CN 212410090 U CN212410090 U CN 212410090U
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Abstract
The utility model relates to an electric automobile collision test state monitoring device, which comprises a box body, wherein a power switch, a battery pack switch, an insulation resistance measuring end, a vehicle-mounted battery pack wiring end, an alarm, a temperature sensor and a smoke sensor are arranged on the box body, and a resistor, a power supply, a singlechip and a voltage IC chip are arranged in the box body; the temperature sensor, the smoke sensor and the alarm are connected with the single chip microcomputer through wires; the vehicle-mounted battery pack terminal is connected with one end of the battery pack switch, the other end of the battery pack switch is respectively connected with the insulation resistance measuring end and the voltage IC chip, and the insulation resistance measuring end is connected with the resistor; the power supply is respectively connected with the single chip microcomputer and the voltage IC chip through a power switch. The utility model discloses can start to the end from the experiment, monitor to vehicle voltage, battery package and circuit temperature, whole car smog concentration.
Description
Technical Field
The utility model relates to an electric automobile bump test technical field especially relates to an electric automobile bump test state monitoring devices.
Background
With the investment of various large automobile manufacturers on new energy automobile research and development and the market demand, the proportion of real automobile collision of new energy automobiles in a collision test room is increased continuously. The occurrence of automobile combustion accidents is very likely to occur in the process of vehicle collision.
The new energy electric automobile is used as a vehicle taking a battery pack as a power source, under the condition of needing an electrified test, the probability of spontaneous combustion after collision and the probability of short circuit between an automobile body and a power supply are greatly increased compared with a fuel oil automobile, and under the condition of not effectively monitoring, a tester is easy to neglect potential dangerous paralysis, so that the dangerous condition is caused.
At present, after a new energy vehicle real vehicle collision test, only vehicle insulation resistance is measured, and other effective early warning methods except visual inspection are not used for monitoring conditions such as a fire condition after the vehicle collision, whether a vehicle body is powered off or not. After the vehicle collides, not the situation that no fire or no short circuit occurs at that time, the condition that staff dismouting equipment and vehicle placed afterwards can be guaranteed, and the vehicle can not be because of the emergence of the hidden danger of potentially firing that reasons such as the interior line damage of car, short circuit, electrolyte leaked.
If there is not an effectual, the monitoring devices of continuation, get into the vehicle when the testing personnel and carry out data acquisition to the vehicle after the experiment to and when dismantling and remove the vehicle to the equipment on the car, dangerous condition such as the electric leakage can take place, emit dense smoke, battery package is on fire or even explodes, this undoubtedly greatly increased testing personnel, the dangerous probability takes place for testing equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an electric automobile collision test state monitoring devices is provided, can begin to the end from the experiment, monitors to vehicle voltage, battery package and circuit temperature, whole car smog concentration.
The utility model provides a technical scheme that its technical problem adopted is: the device comprises a box body, wherein a power switch, a battery pack switch, an insulation resistance measuring end, a vehicle-mounted battery pack wiring end, an alarm, a temperature sensor and a smoke sensor are arranged on the box body, and a resistor, a power supply, a single chip microcomputer and a voltage IC chip are arranged in the box body; the temperature sensor, the smoke sensor and the alarm are connected with the single chip microcomputer through wires; the vehicle-mounted battery pack terminal is connected with one end of the battery pack switch, the other end of the battery pack switch is respectively connected with the insulation resistance measuring end and the voltage IC chip, and the insulation resistance measuring end is connected with the resistor; the power supply is respectively connected with the single chip microcomputer and the voltage IC chip through a power switch.
The box body is also provided with a temperature display screen, and the temperature display screen is connected with the single chip microcomputer.
And the box body is also provided with a voltage display screen, and the voltage display screen is connected with the voltage IC chip.
The alarm is an audible and visual alarm.
The smoke sensor adopts an MQ-2 smoke sensor.
The temperature sensor adopts a DS18B20 temperature sensor.
The single chip microcomputer is an STC-C52 single chip microcomputer.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect:
the utility model discloses can measure insulation resistance according to the regulation of china's electric automobile standard GB/T18384- ' electric automobile safety requirement ' and GB/T31498- ' safety requirement after electric automobile collides with 2015- ' safety requirement after electric automobile collides to automobile body short circuit, battery package smoke, temperature variation behind the real-time supervision vehicle collision when the measured value surpasss the setting value, with the acousto-optic device early warning, strive for the processing time for the testing personnel. The utility model discloses can be after experimental vehicle collision, continuity monitoring vehicle state in the certain time, the probability that the operation produced harm under the experimental personnel was not aware of the circumstances when reducing the emergence dangerous situation.
The utility model discloses a collection is hindered and is measured, voltage monitoring, trinity device of condition of a fire monitoring, and the part integrated level is high, does not occupy car inner space and other mounted position, and weight such as required circuit board, chip itself is no longer than 1KG, light in weight, and the convenience of taking is good through fixed back impact resistance, and is not fragile in the experimentation.
Drawings
Fig. 1 is an external perspective view of the present invention;
fig. 2 is an internal plan view of the present invention;
fig. 3 is a circuit connection diagram of the present invention;
fig. 4 is a flow chart of the operation of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses an embodiment relates to an electric automobile bump test state monitoring devices, as shown in FIG. 1-FIG. 3, including 12V power 1, switch 2, battery package switch 3, insulation resistance measurement terminal 4, on-vehicle battery package terminal 5, voltage display screen 6, 1602A temperature display screen 7, BJ-1 audible-visual annunciator 8, MQ-2 smoke transducer 9, DS18B20 temperature sensor 10, the combination sets up button 11, STC-C52 singlechip 12, voltage IC chip 13, charge interface 14 and box body 15.
The power switch 2, the battery pack switch 3, the insulation resistance measuring terminal 4, the vehicle-mounted battery pack terminal 5, the BJ-1 audible and visual alarm 8, the voltage display screen 6, the 1602A temperature display screen 7, the DS18B20 temperature sensor 10, the MQ-2 smoke sensor 9 and the charging interface 14 are arranged on the box body 15. The box body 15 is internally provided with a resistor, a 12V power supply 1, an STC-C52 singlechip 12 and a voltage IC chip 13. The STC-C52 single chip microcomputer 12 is connected with a combined setting key 11, and the combined setting key 11 is used for setting a temperature threshold and a smoke concentration threshold. The 12V power supply 1 is respectively connected with the STC-C52 single chip microcomputer 12 and the voltage IC chip 13 through the power switch 2, and the 12V power supply 1 can supply power for the STC-C52 single chip microcomputer 12 and the voltage IC chip 13. The power switch 2 controls the 12V power supply 1 in the device to supply power to the device, and the battery pack switch 3 is used for connecting and disconnecting the device and the vehicle body battery pack. The 12V power supply 1 of the present embodiment is a rechargeable power supply, and is connected to a charging interface 14 on the case 15.
In the embodiment, two DS18B20 temperature sensors 10 and two MQ-2 smoke sensors 9 are arranged and are connected with the STC-C52 single chip microcomputer 12 through conducting wires, wherein the length of the conducting wires is longer than the positions of the sensors to the pins of the single chip microcomputer, so that the DS18B20 temperature sensors 10 and the MQ-2 smoke sensors 9 arranged on the box body 15 can be placed at positions to be measured. The STC-C52 single chip microcomputer 12 is also connected with a BJ-1 audible and visual alarm 8 and a 1602A temperature display screen 7, so that a temperature measuring module and a smoke measuring module which are manufactured on the basis of a 51 single chip microcomputer are formed.
In the temperature measuring module manufactured based on the 51 single chip microcomputer, the STC-C52 single chip microcomputer 12 reads data of the DS18B20 temperature sensor 10, displays the read data on the 1602A temperature display screen 7, compares the read data with a set temperature threshold value, and sends out an audible and visual alarm signal through the BJ-1 audible and visual alarm 8 when the read data exceeds the set temperature threshold value. In the smoke measuring module manufactured based on the 51 single chip microcomputer, the STC-C52 single chip microcomputer 12 reads data of the MQ-2 smoke sensor 9, compares the read data with a set smoke concentration threshold value, and sends out an audible and visual alarm signal through the BJ-1 audible and visual alarm 8 when the read data exceeds the set smoke concentration threshold value. Therefore, when the collision test is carried out, as long as the audible and visual alarm is heard to send out an alarm signal, the tester can prepare in advance, and the dangerous case is reduced.
In the embodiment, the vehicle-mounted battery pack wiring terminal 5 is connected with one end of the battery pack switch 3, the other end of the battery pack switch 3 is respectively connected with the insulation resistance measuring end 4 and the voltage IC chip 13, the voltage IC chip 13 is connected with the voltage display screen 6, and the insulation resistance measuring end 4 is connected with a resistor in the box body. A voltage measuring module with a voltage real-time measuring function is formed by the vehicle-mounted battery pack terminal 5 and the voltage IC chip 13, the vehicle-mounted battery pack terminal 5 is externally connected with a lead to connect the anode and the cathode of a power battery in the engine room of the electric automobile, the power-on state of the whole automobile can be monitored in real time, and the voltage of the whole automobile of the automobile can be displayed in real time through the voltage display screen 6. When the vehicle-mounted battery pack terminal 5 is connected with a power battery in an electric vehicle cabin, the insulation resistance measuring end 4 can be connected with a positive electrode and a negative electrode of the electric vehicle battery pack and a vehicle body through the vehicle-mounted battery pack terminal 5, and the insulation resistance measuring end 4 is connected with a resistor in the box body, so that the voltage can be measured through the insulation resistance measuring end 4 to calculate the insulation resistance.
Therefore, the utility model discloses a collection resistance measurement, voltage monitoring, the trinity device of condition of a fire monitoring, the part integrated level is high, does not occupy car inner space and other mounted position, and weight such as required circuit board, chip of itself is no longer than 1KG, and light in weight takes the convenience, and is good through fixed back impact resistance, and is not fragile in the experimentation.
The working operation flow of the electric vehicle collision test state monitoring device of the embodiment is shown in fig. 4, before a collision test, a vehicle power supply is disconnected, and a box body 15 of the monitoring device is fixed on a vehicle body; correspondingly connecting three conducting wires of the vehicle-mounted battery pack terminal 5 with the positive electrode, the negative electrode and the vehicle body conductive part of the power battery of the electric vehicle; two DS18B20 temperature sensors 10 are respectively adhered to the dense part of a vehicle chassis battery pack and a cabin power line; respectively sticking two MQ-2 smoke sensors 9 to the dense positions of a vehicle chassis battery pack and a cabin power line; the power switch 2 is adjusted to enable the device box to be electrified and operated, the battery pack switch 3 enables the box body 15 to be electrified with the whole vehicle, at the moment, the voltage display screen 6 displays the real-time voltage of the vehicle, and the 1602A temperature display screen 7 displays the real-time temperature of the position of each temperature sensor; the MQ-2 smoke sensor works, and then the voltage between the anode and the cathode of the automobile power battery and the automobile body (an electric chassis, namely the ground) is measured according to the standard specification and the insulation resistance measuring end 4, so that the insulation resistance is calculated. After the whole device operates, the voltage, the temperature and the smoke condition of the whole vehicle can be continuously monitored in the whole process until the test is finished.
It is not difficult to discover, the utility model discloses can measure insulation resistance according to the regulation of china's electric automobile standard GB/T18384-. The utility model discloses can be after experimental vehicle collision, continuity monitoring vehicle state in the certain time, the probability that the operation produced harm under the experimental personnel was not aware of the circumstances when reducing the emergence dangerous situation.
Claims (8)
1. A collision test state monitoring device for an electric automobile comprises a box body and is characterized in that a power switch, a battery pack switch, an insulation resistance measuring end, a vehicle-mounted battery pack wiring end, an alarm, a temperature sensor and a smoke sensor are arranged on the box body, and a resistor, a power supply, a single chip microcomputer and a voltage IC chip are arranged in the box body; the temperature sensor, the smoke sensor and the alarm are connected with the single chip microcomputer through wires; the vehicle-mounted battery pack terminal is connected with one end of the battery pack switch, the other end of the battery pack switch is respectively connected with the insulation resistance measuring end and the voltage IC chip, and the insulation resistance measuring end is connected with the resistor; the power supply is respectively connected with the single chip microcomputer and the voltage IC chip through a power switch.
2. The device for monitoring the collision test state of the electric automobile according to claim 1, wherein a temperature display screen is further arranged on the box body, and the temperature display screen is connected with the single chip microcomputer.
3. The device for monitoring the collision test state of the electric automobile according to claim 1, wherein a voltage display screen is further arranged on the box body, and the voltage display screen is connected with the voltage IC chip.
4. The device for monitoring the collision test state of the electric automobile according to claim 1, wherein a charging interface is further arranged on the box body, and the charging interface is connected with the power supply.
5. The device for monitoring the crash test state of an electric vehicle according to claim 1, wherein the alarm is an audible and visual alarm.
6. The electric vehicle crash test state monitoring device according to claim 1, wherein the smoke sensor is MQ-2 smoke sensor.
7. The device for monitoring the crash test state of the electric vehicle according to claim 1, wherein the temperature sensor is a DS18B20 temperature sensor.
8. The device for monitoring the collision test state of the electric automobile according to claim 1, wherein the single chip microcomputer is an STC-C52 single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178485.0U CN212410090U (en) | 2020-06-23 | 2020-06-23 | Electric automobile collision test state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178485.0U CN212410090U (en) | 2020-06-23 | 2020-06-23 | Electric automobile collision test state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410090U true CN212410090U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021178485.0U Active CN212410090U (en) | 2020-06-23 | 2020-06-23 | Electric automobile collision test state monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410090U (en) |
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2020
- 2020-06-23 CN CN202021178485.0U patent/CN212410090U/en active Active
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