Name: BYD Qin PLUS DM-i Electric Control Radiator (ECU I) | Motor & Controller Cooling System Heat Exchanger OEM Spec
Brand: Shijiazhuang Haobaijiu Trading Co., Ltd.
SKU: BYD Qin PLUS dmi
Availability: InStock

Brand Name:	BYD
Model Number:	BYD Qin PLUS dmi
MOQ:	1
Price:	Negotiable
Payment Terms:	L/C

Detail Information

Product Description

Detail Information

Product Description

This product is specifically designed for the BYD Qin PLUS DM-i (including the Champion and Honor Editions) Super Hybrid system. It is a highly efficient heat dissipation component—known as the "Electronic Control Radiator" (or "Motor/Controller Cooling Tank")—installed in the front section of the engine bay to provide independent cooling for the motor controller and drive motor. Unlike the traditional engine radiator (main radiator), this dedicated cooling unit is responsible for cooling the core electrical components of the DM-i hybrid system—including high-voltage assemblies such as the front drive motor controller and the drive motor itself. This ensures that these precision electronic components operate within their optimal temperature range (typically 40–60°C), a factor directly critical to the vehicle's power output stability and the longevity of its electronic control systems.

The Xiaoyun 1.5L naturally aspirated engine featured in the BYD Qin PLUS DM-i utilizes an Atkinson cycle operating mode, boasting an ultra-high compression ratio of 15.5:1 and a maximum thermal efficiency exceeding 43%. The DM-i hybrid system is equipped with two independent cooling circuits: a larger circuit dedicated to cooling the engine and the air conditioning system, and a smaller circuit dedicated exclusively to cooling the motor and its electronic control unit. Due to the sophisticated nature of the DM-i system, the motor and electronic control unit generate a significant amount of heat during operation; consequently, an independent radiator is essential to maintain them within their optimal operating temperature range. This dedicated cooling unit serves as the core component of this independent thermal management system; while it works in conjunction with the main engine radiator, it operates on a separate circuit. Typically positioned to the side or in front of the main radiator within the engine bay, it establishes a "dual-radiator" layout—characterized by the presence of two coolant filler ports within the engine bay, one located on the left and the other on the right.

As a specialized manufacturer of automotive thermal management components, we develop and produce this product in strict compliance with BYD's original equipment (OE) technical standards. It features an all-aluminum tube-and-fin structure, comprising multi-port aluminum alloy flat tubes, louvered fins, and plastic end tanks, all integrally joined using a Controlled Atmosphere Brazing (CAB) process. This construction offers numerous advantages, including high heat exchange efficiency, superior corrosion resistance, and reliable leak-proof sealing. The product has successfully passed rigorous pressure testing and high/low-temperature cycling tests; its OE part number precisely matches that of the original vehicle component, making it a direct replacement for any damaged or aged cooling units in the vehicle.

BYD D1

BYD D1 — Left Lower Control Arm;

BYD D1 — Right Lower Control Arm

BYD E5

BYD E5 Gearshift Mechanism Assembly

BYD PLUS DMI

BYD PLUS DM-i Hood

BYD S6

BYD S6 Rear Stabilizer Link

BYD Seal 06 DM-i

BYD Seal 06 DM-i Axle Shaft Assembly Right

BYD Seal 06 DM-i Axle Shaft Assembly Left

BYD Seal 06 DM-i Rigid Air Intake Pipe

BYD Seal 06 DM-i Engine Control Unit (ECU)

BYD Seal 06 DM-i Front Bumper Trim Strip (Left)

BYD Seal 06 DM-i — Right Side Skirt

BYD Sea Lion

BYD Seal Rear Fog Light (Left)

BYD Dolphin

BYD Dolphin Front Engine Mount Right

BYD Dolphin Front Engine Mount left

BYD Dolphin — Radiator (Motor I)

BYD Han EV

BYD Han EV Exterior Trim Strip (Front Right)

BYD Han EV Exterior Trim Strip (Rear Right)

BYD Qin

BYD Qin Radiator Mount (Lower)

BYD Qin water tank rubber block/upper

BYD Qin Trunk Lock Actuator (High-Spec) — With Motor

BYD Qin Evaporative Emissions Canister Solenoid Valve

BYD QinEV E5

BYD Qin Rear Badge / EV

BYD Qin Electric Cooling Fan

BYD Qin Rear Interior Door Handle Cable

BYD Qin L

BYD Qin L Trunk Lid Hinge

BYD QinL DMI

BYD Qin L DMI lower control arm Right

BYD Qin L DMI lower control arm Left

BYD Qin L DM-i Rear Taillight (Right)

BYD Qin L DM-i Condenser

BYD Qin L DM-i: High Coolant Temperature

BYD Qin L DMI Fender Liner Right

BYD Qin L DMI front bumper trim/middle

BYD Qin L DM-i Radiator Support Frame

BYD Qin L DM-i — Right Fender

BYD Qin L DM-i Front Bumper Bracket (Right)

BYD Qin L DM-i — Rear Trunk Lid Trim Panel (Exterior)

BYD Qin L DM-i — Side Skirt (Left)

BYD Qin L DM-i — Rear Trunk Lid Trim Panel (Exterior)

BYD Qin L DM-i Rear Taillight (Left)

BYD Qin L DM-i — Rear Door (Left)

BYD Qin L DM-i Front Door (Left)

BYD Qin L DM-i Front Door (Right)

BYD Qin L DM-i — Rear Fender (Right)

BYD Qin L DM-i Washer Fluid Reservoir with Motor

BYD Qin L DM-i — Rear Door (Right)

BYD Qin L DM-i Rear Bumper

BYD Qin L DM-i — Front Left Window Switch

BYD Qin L DM-i Aluminum Alloy Wheels

BYD Qin L DMI with large side profile

BYD Qin L DM-i Exterior Trim Strip (Front Left)

BYD Qin L DM-i Rear Door Guide Rail and Weatherstrip Channel

BYD Qin L DM-i Door Frame Seal Strip / Front Left

BYD Qin L DM-i — Front Steering Knuckle (Right)

BYD Qin L DM-i Rear Bumper Trim (Right)

BYD Qin L DM-i Rear Panel

BYD Qin L DM-i Rear Bumper Trim Strip (Left)

BYD Qin L DM-i — Rear Bumper (Lower)

BYD Qin L DM-i — Left Fender

BYD Qin L DMI rear taillights/center

BYD Qin L DM-i Front Bumper (With Radar Sensor Holes)

BYD Qin L DM-i Hood Latch

BYD Qin L DM-i Trunk Lid

BYD Qin L DM-i — Front Fender Liner (Left)

BYD Qin L DM-i Front Bumper Trim Panel (Left) — With Hole

BYD Qin L DM-i Front Bumper Bracket (Right)

BYD Qin L DM-i Engine Underguard

BYD Qin L DM-i Front Bumper Reinforcement

BYD Qin L DM-i Front Bumper (Lower)