Bus Circulation Pump Vehicle Electric Water Pump
Description
The electric bus circulation pump is an electronically driven fluid power component, mainly used in new energy buses (electric, hybrid) to circulate coolants for thermal management of batteries, motors, and passenger compartments.
Core Advantages Over Mechanical Pumps
- Independent Control: It is not driven by the engine, so it can work independently according to cooling needs. This avoids the problem of insufficient or excessive flow caused by the mechanical pump's speed being tied to the engine.
- Energy Saving: It adopts variable speed control. It can adjust the rotation speed according to the actual thermal load (such as battery temperature, motor temperature), which reduces unnecessary energy consumption compared with the constant-speed operation of mechanical pumps.
- High Precision: It can cooperate with the vehicle's electronic control unit (ECU) to achieve real-time flow adjustment. This ensures that key components (such as batteries) are always in the optimal temperature range, improving their service life and safety.
Technical Parameter
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Ambient Temperature
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-40ºC~+100ºC
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Medium Temp
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≤90ºC
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Rated Voltage
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12V |
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Voltage Range
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DC9V~DC16V |
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Waterproofing Grade
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IP67 |
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Service life
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≥15000h
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Noise
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≤50dB
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Product Size
Advantage
1. Constant power, the voltage is 9V-16 V change, pump power constant;
2. Overtemperature protection: when the environment temperature over 100 ºC (limit temperature), water pump stop, in order to guarantee the life of the pump, suggest installation position in low temperature or air flow better;
3. Overload protection: when the pipeline has impurities, cause the pump current increases suddenly, the pump stop running;
4. Soft start;
5. PWM signal control functions.
Application
Main Application Scenarios in Electric Buses
- Battery Thermal Management: It circulates the coolant in the battery pack's cooling/heating circuit. In high temperature, it takes away the heat of the battery; in low temperature, it cooperates with the heater to heat the battery, ensuring the battery's charging and discharging efficiency and safety.
- Motor and Inverter Cooling: It drives the coolant to flow through the motor and inverter's water jacket. This absorbs the heat generated during their operation, preventing overheating from affecting power output or causing component damage.
- Passenger Compartment Heating (Heat Pump System): In the heat pump air conditioning system, it circulates the refrigerant or coolant. This transfers the heat in the external environment or vehicle waste heat to the passenger compartment, realizing energy-saving heating.
Our Company
Hebei Nanfeng Automobile Equipment (Group) Co., Ltd is a group company with 5 factories, that specially produce parking heaters, heater parts, air conditioner and electric vehicle parts for more than 30 years. We are the leading auto parts manufacturers in China.
FAQ
Frequently Asked Questions about Electric Bus Water Pumps
1. What is the function of the water pump in an electric bus?
The function of the water pump in an electric bus is to circulate the coolant in the cooling system to maintain the optimal operating temperature of various components and ensure their service life.
2. How does the water pump in an electric bus work?
The water pump in an electric bus is usually driven by an electric motor, which generates pressure to circulate the coolant. When the water pump is running, it pumps coolant pressure through the engine block and radiator, effectively dissipating heat.
3. What are the benefits of using a water pump in an electric bus?
The water pump plays a crucial role in preventing overheating of electric bus components and maintaining component efficiency and performance. By continuously circulating the coolant, the water pump helps regulate temperature and avoid potential problems caused by overheating.
4. What should I do if the electric bus water pump malfunctions?
If the water pump in an electric bus malfunctions, coolant circulation will stop, causing components to overheat. This can cause irreversible damage to the engine, motor, or other critical components, resulting in high repair costs and potentially rendering the bus inoperable. Therefore, if a water pump malfunction is detected, the bus should be stopped immediately and a professional should be contacted for inspection or replacement.
5. How often should an electric bus water pump be inspected and replaced?
The specific inspection and replacement cycle for an electric bus water pump may vary depending on the manufacturer's recommendations. However, it is generally recommended to include regular inspections as part of routine maintenance, and replace the pump if signs of wear, leaks, or performance degradation are found.
6. Can aftermarket water pumps be used in electric buses?
Aftermarket water pumps can be used in electric buses, but it must be ensured that they are compatible with the specific model and requirements of the bus. It is recommended to consult a reputable manufacturer or supplier to ensure proper installation and performance.
