Select the mainstream new energy pure electric vehicle air -conditioning system parts, vortex-type car air -conditioning electric compressor, and change the power by adjusting the speed. As a source of power, lithium iron phosphate power battery packs form a air -conditioning system that is exactly the same as pure electric vehicles to cultivate students' fault analysis and processing capabilities of new energy electric vehicle air -conditioning systems. It is suitable for new energy curriculum teaching in vocational and technical colleges.
ii. Features
1. It is equipped with a lithium iron phosphate power battery pack for pure electric vehicles, with a nominal voltage of 48V and a capacity of 20AH. It is equipped with 16 series of lithium iron phosphate square batteries. The power battery pack is transparently designed, and the internal components and connection methods are intuitive.
2. The power battery pack is equipped with a 10-inch LCD screen, which simultaneously displays the actual value of output current and voltage and the change rule of the 16-cell power battery voltage parameter when the air conditioner is turned on.
3. Select the mainstream pure electric vehicle vortex-type automotive air conditioner electric compressor, high-voltage drive, low noise, adjustable speed, range 1500-3000rpm, rated speed 2300rpm. Condenser, evaporator, high and low pressure pipelines, expansion valve and other refrigeration components are the same as those of pure electric vehicles. In addition, it is equipped with an air-conditioning control panel, which is installed on the right side of the bench.
4. Add high and low pressure pipeline pressure gauges to reproduce the actual pressure changes in the working process of the air conditioning system, so that students can understand the changing rules of high pressure and low pressure in the refrigeration system.
5. Add air inlet and air outlet temperature sensors, reproduce the air inlet and air outlet temperatures in real time, and intuitively understand the temperature change of the air conditioning system.
6. The training platform is equipped with a mainstream electric vehicle PTC heating device with a power of no more than 2KW. The hot air is sent to different parts through the air conditioning blower adjustment device HAVC, which can realize various cab heating functions such as foot blowing and defrosting.
7. The power battery pack of the training platform is equipped with a 12V power switch and an emergency power-off switch, which can cut off the power of the entire system at any time.
8. The training platform is equipped with 4mm aluminum-plastic board, and the teaching board fully displays the working principle of the air conditioning system. There are detection sockets at the low -voltage control connector of the main components. With the help of a multi -meter, the parameter changes in various states are detected in real time. The detection sockets are not less than 8.
9. The training platform is equipped with an intelligent wireless fault setting and assessment system. Send a signal through the mobile APP, the teacher sets the fault, and the students analyze and find the fault point. The failure phenomenon is open circuit or occasional, and is the main failure of the new energy vehicle, there are no less than 6 failure points. Through troubleshooting contact, master the ability to handle real vehicle faults.
10. The training bench is also equipped with a DS2019-29 automotive-specific clamp meter and a DS2019-28 high-voltage test pen for the new energy vehicle competition. It is used for the measurement of parameters such as control line voltage and current, and the non-contact measurement of orange high-voltage loop high current.
11. The training platform consists of a platform and a teaching board. The platform is placed horizontally and the main components are installed. There are 4 casters installed at the bottom of the training platform, which can move flexibly. At the same time, the casters are equipped with self-locking device, which can fix the position.
iii. Basic Parameter
1. Dimensions (mm): not less than 1500*700*1450 (length*width*height)
Teaching board size (mm): not less than 1500*795 (length*width)
2. Equipment working power: 220V AC, power not more than 500W
Equipment working temperature: -20°～+40°
3. Power battery type: Environmentally friendly lithium iron phosphate power battery (square aluminum shell, single battery 3.2V20AH)
Power battery pack capacity: 48V20AH (0.9 kWh)
Full charge and discharge times: 2000 times
Working temperature: -20°～60°
5. Vortex-type car air conditioner electric compressor:
Displacement: 26ml/r
Refrigerant: R134a
Refrigeration oil: RL68H 90ml
Speed range: 1500-3000rpm
Rated speed: 3500rpm
Running noise: less than 65db
Input voltage range: 60-100VDC
Temperature controlled resistance: 4.8k ohms
6.PTC heating device:
Input voltage range: 60-100VDC
Maximum power: no more than 2KW
iv. Basic Configuration
Lithium iron phosphate power battery pack (including a single cell, Discharge relay, Charging relay, Hall sensor, Maintenance switch, Charging and discharging socket, BMS battery management system, DC-DC converter), 10-inch touch screen, High voltage mechanical emergency power off switch, Car charger, Vortex-type car air conditioner electric compressor, Condenser, Expansion valve, Evaporator, High and low pressure pipelines, High pressure detection port and pressure gauge, Low pressure detection port and pressure gauge, Air conditioning blower regulator HAVC, Air conditioner control panel, PTC heating device, A set of vortex-type car air conditioner electric compressor parts,
Alloy steel bench (with teaching board).