PTC coolant heaters can provide heat to cockpit of new energy vehicles and meet standard of safe
defrosting and defogging. Meanwhile,it can also provide heat to other mechanisms of the vehicle that
require temperature regulation, such as batteries.
With improvement of water tank,third generation PTC coolant heater has better performance:
● Coolant is heated by electricity, and the interior of is heated through the heater core
● Installed in the water circulation system
● Warm air is soft and temperature controllable,
● Adjust the power by gear control
● It has the function of short-term heat storage
● ● Vehicle cycle, support battery thermal management
basic paramteres
| item | condition | Min | Typical | Max | Unit |
| power | ①test voltge Low voltage:DC24±0.1V； ②Load voltage:DC600±5V； ③inlet temp：10℃±2℃； ④flow rate：40±0.5L/min | 18000
| 20000 | 22000 | W |
Weight
| excl coolant ,cables |
| 9.5 |
| KG |
Temperature
| item | condition | Min | Typical | Max | Unit |
storage temperature |
| -40 | 125 |
| ℃ |
Ambient temperature
|
| -40 | 105 |
| ℃ |
| Humidity |
| 5% | 95% |
| RH |
Low Voltage
| item | condition | Min | Typical | Max | Unit |
control voltage VCC |
| 18
| 24 | 32 | V |
| ground |
|
| 0 |
| V |
current
|
| 65 | 75 | 85 | mA |
High Voltage
| item |
| Min | Typical | Max | Unit |
| rated voltage |
| 400 | 600 | 750 | V |
under voltage
|
| 380
|
| 400 | V |
over voltage
|
| 750
|
| 770 | V |
| working current |
|
| 25 |
| A |
inrush current
|
|
| 37.5 |
| A |
Others
| item | Condition | Min | Typical | Max | Unit |
| Cold insulation | DC1000V,60S | 100 |
|
| MΩ |
breakdown voltage, leakage current | DC3500V,60S |
|
| 5 | mA |
IP
| IP67，IP6K9K |
|
|
|
|
| ESD protection |
|
|
| 8 | KV |
| baud rate |
|
| 250 |
| K |
frame format
|
|
| extended frame |
|
|
| X capacitor | between +& - polarity of hv |
| 2.2 |
| μF |
| Y capacitor | between polar +&- of hv and polar - of lv |
| 3.3 |
| μF |
Special requirements such as high voltage range,low voltage range, frame,baud rate,CAN ID etc can be made as request.
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