600W EV Circulation Pump For BTMS

Short Description:

The EV Electronic Water Pump is a core actuating component of the battery thermal management system (BTMS)power system in electric vehicles; it drives the circulation of coolant (an ethylene glycol-water solution) through the battery pack circuit to cool or preheat the battery cells, minimize temperature differentials, and ensure safety during fast charging.

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Product Description

New Energy Vehicle Electronic Water Pump (Electronic Coolant Pump/EWP)

The electronic water pump is a core actuating component in the thermal management systems of new energy vehicles. Driven by a brushless DC (BLDC) motor and independent of engine belts, its speed is regulated by the vehicle's VCU or TCU based on temperature signals. It circulates coolant to facilitate the cooling and heating of battery packs, drive motor/power electronics units, and heat pump circuits; a typical battery electric vehicle (BEV) is equipped with two to four such pumps.

Its Core Functions：

1. Traction Battery Circuit: Manages battery cooling and low-temperature preheating to maintain cells within the optimal operating range of 15–35°C, thereby ensuring fast-charging capability, slowing degradation, and mitigating thermal runaway risks.
2. Motor & Power Electronics Circuit: Cools the drive motor and inverter (IGBT) components to prevent power derating due to overload or component burnout.
3. Heat Pump/PTC Heating Circuit: Facilitates cabin heating and waste heat recovery circulation; the heat pump system relies on the electronic water pump to circulate the heat transfer fluid.

Product Parameter

1	product name	electronic water pump
2	product model	02.03.732.3405
3	Rated voltage	DC24V
4	Woking voltage range	DC18V～32V
5	Rated current	≤25.5A
6	power	600W
7	Rated flow	≥3500L/h@24m
8	Max head	≥27m

Performance Parameter

1	Lifetime	≥20000H
2	Waterproof level	IP98
3	Color	black
4	Environmental protection grade	Complies with RoHS environmental requirements.
5	Frame material	ADC12、PPS+GF30
6	noise	≤60db
7	Sealing performance	Test pressure: 350 kPa; test duration: 5 s; leakage: ≤80 Pa
8	Working Principle	Centrifugal pump
9	Application	Vehicle water circulation cooling system

Performance Curve

Structural Composition

This series of EV Circulation Pump features a canned pump design driven by a brushless motor, with the following main components:
1. A DC brushless motor, comprising a rotor assembly (including the impeller assembly) and a stator housing assembly (including the isolation sleeve and rear bearing housing assembly).
2. A controller (PCB assembly) for communicating with the main control unit and controlling the DC brushless motor.
3. A pump cover for connecting to the vehicle, engine, and cooling system.
4. A brushless motor rear cover, including a wiring assembly for connection to the vehicle.