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Ev Battery Thermal Management

Name: Ev Battery Thermal Management Suppliers and Manufacturers China - Factory Quotation - NANFENG
Brand: Nanfeng
SKU: 297487409

NF recently launched a new product - BTMS.BTMS keeps electric vehicle battery pack temperatures within the right range to maintain their longer driving range and extend battery life.

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Description

If you're looking for the ev battery thermal management, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.

EV Battery Thermal Management

Key Advantages

BTMS 7

The EHP series thermal management unit boasts advantages such as high efficiency, safety, environmental friendliness, CAN2.0 communication, and fault self-diagnosis, enabling it to operate in three modes: cooling, heating, and self-circulation.

During vehicle operation or charging, the battery pack temperature can rise due to ambient temperature or the charging/discharging characteristics of the battery pack itself, causing the battery to lose its optimal operating environment. This product is designed for water-cooled battery packs. By controlling the water temperature, it ensures the battery pack operates within a specific temperature range, thereby guaranteeing battery quality, extending its lifespan, and ensuring the vehicle's driving range.

Model	EHP6.0-1	Refrigeration capacity	7kw
Rated Voltage	600V DC	Communication method	CAN2.0
Control Voltage	24V	Refrigerant	R134a
Heating capacity	8kW	working temperature	-40℃～50℃
Overvoltage protection /recovery voltage	750/720V DC	Weight	＜55kg
Undervoltage protection /recovery	400/430V DC	Color	white

The schematic diagram of the company's EHP battery thermal management system is shown in Figure 2-1. The solid red line in the figure represents the cooling cycle, and the dashed blue line represents the coolant circulation.

Operational Principle1

BTMS 3

BTMS 7

BTMS 9

BTMS 10

Products Control and Communications

BTMS 6

Cooling Mode: Start-up is controlled by BMS signals. The unit starts operating when it receives both a cooling signal and a high-pressure Ready signal from the BMS.

Heating Mode: Start-up is controlled by BMS signals. The unit starts operating when it receives both a heating signal and a high-pressure Ready signal from the BMS.

Self-Circulation Mode: When the unit receives a self-circulation signal from the BMS, the internal low-pressure water pump and fan operate, and the unit self-circulates.

Shutdown: The unit stops operating when it receives a stop signal from the BMS.

Common Faults and Corresponding Maintenance

BTMS 6

No.	Fault phenomenon	Cause analysis	Solution
1	Repeated start and stop of the water pump	1. Unstable power supply voltage; 2. Water pump relay failure;	1. Check and adjust the power supply voltage of the entire vehicle; 2. Place the unit in self-cycling mode and check the relay engagement.
2	The water pump cannot start	1. Foreign objects are blocking the water pipeline. 2. Line fault;	1. Install a filter outside the water inlet of the unit. 2. Check the continuity of the circuit and replace the faulty wiring harness.
3	The compressor cannot start	1. Reverse connection of high-voltage positive and negative poles; 2. Loose plug-in; 3. Line fault; 4. Pressure sensor component failure;	1. Check if the actual wiring harness is consistent with the drawing, and adjust the wire sequence based on the inspection results. 2. Readjust the docking plug-in to ensure it is secure. 3. Check the continuity of the circuit and replace the faulty wiring harness. 4. Contact the manufacturer for maintenance.
4	The fan cannot start	1. Fan relay failure. 2. Line fault;	1. Place the unit in refrigeration mode and check the relay engagement. 2. Check the continuity of the circuit and replace the faulty wiring harness.
5	Fan and compressor speeds are abnormal.	1. Power supply failure; 2. temperature sensor failure; 3. Fan or compressor component failure;	1. Check and adjust the power supply voltage of the entire vehicle; 2. Check the temperature sensor, and replace the faulty temperature sensor. 3. Fan or compressor component failure, contact the manufacturer for maintenance.