Yueqing Bada Optoelectronics Technology Co., Ltd.

The company's core product, accounting for over 85% of main business revenue. It transmits high-voltage energy within and between the three-electric systems (battery, motor, electronic control), comprising sub-series such as fast-charging, slow-charging, power, high-voltage accessory, battery and drive motor controller harnesses, paired with high-voltage connectors to form the complete-vehicle high-voltage connection system. The company participated in drafting the national standard GB/T 37133-2018 for high-voltage high-current harnesses and connectors for electric vehicles.

2023 sales volume: 1,904,715 units; 2023 average unit price: 294.13 CNY/unit; 2023 revenue share: 85.39%; 2023 gross margin: 21.57%; Main materials: high-voltage cables/connectors/terminals

• High-voltage connection between the three-electric systems of battery electric vehicles
• Battery pack to high-voltage distribution unit connection
• Electric drive and electronic control system connection
• High-voltage harnesses for special vehicles such as armored vehicles (supplier to the 208th Institute of China Ordnance South Group)

Interface connecting high-voltage system components to cables in new energy vehicles, transmitting electromagnetic energy and signals. Features high-voltage interlock (HVIL), shielding, waterproofing, wire splitting and terminal quick-install structures, applied to connections of PDU, MCU, battery, PTC, OBC and DC/DC units. Supporting technologies include a delayed-action HVIL device, an EMI-resistant waterproof wire-splitting connector and a low-contact-resistance quick-install terminal structure.

Applicable wire cross-section: 25~50 mm2; Rated voltage: 600 V DC (typical for category); Rated current: 125 A (typical for category); Ingress protection: IP67 (typical for category); HVIL: with HVIL circuit

• High-voltage connection of PDU/MCU/battery in electric vehicles
• Connection of high-voltage components such as PTC, OBC and DC/DC
• Interface between high-voltage harnesses and electronic control units

Metal-shell high-voltage connector series, including HVP internal-snap and BD series external-snap bayonet structures as well as shielded metal connectors, featuring 360° circumferential shielding, low shielding resistance, high-current transmission and HVIL function, used for high-current high-voltage circuits of PDU, MCU and battery; machined terminals use the cold-heading process.

Rated voltage: 600 V DC (typical); Rated current: 200 A (typical); Shielding: 360° circumferential grounding shield; Ingress protection: IP67 (typical); Mating cycles: ≥500 (typical)

• High-current connection of PDU/MCU/battery for buses and passenger cars
• Wire-splitting scenarios requiring EMI resistance and waterproofing
• High-voltage electrical component connection in new energy vehicles

Connector with push-pull locking and secondary locking structure, providing stable and reliable locking that effectively prevents accidental release; the company holds a patent for the secondary-locking push-pull connector technology. Mainly applied to bus PDU, MCU and battery connections. Chinese and English datasheets are published on the company website catalog and the Sekorm platform.

Locking: push-pull + secondary lock; Rated voltage: 600 V DC (typical); Rated current: 125 A (typical); Ingress protection: IP67 (typical)

• Bus PDU/MCU/battery connection
• High-voltage connection scenarios requiring vibration resistance and anti-release

Connector series for power battery enclosures and battery modules. The quick-assembly waterproof battery connector offers dual waterproofing and convenient assembly/disassembly; the high-current battery module connection product is compact with high current capacity, features IPXXB finger-safe protection, allows 360° adjustable output direction and does not loosen under vehicle vibration.

Finger-safe protection: IPXXB; Output direction: 360° adjustable; Rated current: 200 A (typical); Rated voltage: 600 V DC (typical); Waterproofing: dual waterproof structure

• Quick assembly/disassembly connection of battery enclosures
• High-current connection between battery modules
• Battery safety protection circuits

A high-current Manual Service Disconnect (MSD) used to cut off the power battery high-voltage circuit during maintenance. The switch has good waterproof performance; when the plug is pulled out, the HVIL switch simultaneously opens the control circuit, protecting the system and operators, with long service life and high reliability. Chinese and English datasheets are available on the Sekorm platform.

Rated current: 200 A (typical); Rated voltage: 1000 V DC (typical); HVIL: opens HVIL circuit upon removal; Ingress protection: IP67 (typical)

• Power battery high-voltage circuit maintenance cutoff
• Whole-vehicle high-voltage system safety maintenance

High-voltage power distribution unit for new energy vehicles, one of the company's self-described core product lines. Supporting technologies include waterproof distribution box shielding technology (360° circumferential shielding), junction box interlock structure technology (preventing accidental touch with the cover open) and battery distribution unit mounting structure technology, covering both PDU and BDU distribution units.

Shielding: 360° circumferential shield; Rated voltage: 600 V DC (typical); Rated current: 250 A (typical); Ingress protection: IP67 (typical); HVIL: junction box interlock structure

• Whole-vehicle high-voltage power distribution and protection
• Battery pack distribution unit (BDU)
• High-voltage circuit splitting and interlock protection

Battery charging device product line, including GB national standard AC/DC charging gun assemblies. The E2 series 2015 new national standard AC gun is a mass-produced product; the super liquid-cooled charging gun cable features a self-developed liquid-cooling connection structure, sealing structure, heat dissipation device and insulation monitoring function, achieving higher current and faster charging with a smaller cross-section, already supplied to Geely Auto. The AC vehicle inlet (vehicle plug) is CQC certified.

Rated voltage: 1000 V DC (typical for DC liquid-cooled type); Rated current: 250 A (typical for DC liquid-cooled type); AC rated current: 16 A / 32 A; Electronic lock protection: IP67; Certification: CQC (AC vehicle inlet)

• AC/DC charging connection of new energy vehicles
• Liquid-cooled fast charging supply for Geely Auto
• Charging equipment and vehicle interface

New energy vehicle charging interface (vehicle-side charging socket) series, covering AC inlets, DC inlets and vehicle-end charging sockets, designed to the 2015 new national standard. The E7 series DC inlet has been optimized in cooperation with several large NEV manufacturers with strong compatibility; the AC/DC charging inlet features a self-developed electronic lock with single- or dual-position signal feedback and its drive structure, high/low voltage separation and quick-plug structure, with a high protection grade, mainly supplied to BAIC Group, Leapmotor and Hozon (Neta).

Cover opening angle: 95°~100°; Cover opening time: ≥0.5 s; Mating cycles: 10,000 (contact resistance and temperature rise still compliant after 10,000 mating cycles); Contacts: silver-plated copper alloy; Material: flame-retardant and ROHS compliant; Electronic lock: single/dual position signal feedback

• DC fast charging interface of electric vehicles (E7 series)
• AC slow charging interface of electric vehicles (E2 series)
• Vehicle-end charging socket paired with charging gun

Charging pile series under the charging and discharging device product line, including AC charging piles and portable charging piles (Mode 2 portable charging guns). The N60AB series charging pile/power bank is equipped with self-developed main control board software and tooling software; the charge/discharge control technology features 4G and Bluetooth communication, supporting multiple commercial operation modes.

Rated output power: 7 kW (typical for AC piles); Input voltage: 220 V AC (typical for AC piles); Rated current: 32 A (Mode 2 in-cable control box); Communication: 4G / Bluetooth; Control software: N60AB charging pile software V1.02

• AC slow charging scenarios
• Portable/emergency charging scenarios
• Charging stations and commercial operation

Discharge device series within the charging and discharging device product line, enabling external discharge output of the power battery; together with charging guns, charging piles and charging inlets, it forms the company's charge/discharge product series.

Rated voltage: 220 V AC output (typical); Rated power: 3.3 kW (typical); Ingress protection: IP65 (typical)

• Vehicle-to-load external power supply (V2L)
• Outdoor power use and emergency power supply

High-voltage control device product line for new energy vehicles. The central integrated control box/integrated controller combines the high-voltage safety module, DC/DC controller, PTC module, on-board charger, motor controller and energy management system in one unit; the electric vehicle integrated controller key technology research and industrialization project, carried out with Tongji University and BAIC Group, was listed as a major science and technology project of Zhejiang Province. Other main business revenue in the reporting period mainly came from high-voltage control box sales.

Integrated modules: HV safety module/DC-DC/PTC/OBC/MCU/energy management; Rated voltage: 600 V DC (typical); Digital control: fault protection/intelligent communication/remote maintenance/remote upgrade

• Whole-vehicle high-voltage central control and distribution
• Integrated control of three-electric systems

One of the company's self-described product lines, serving the battery swap mode of new energy vehicles, including quick-swap connectors and swap station charging cabinets, realizing high-voltage connection and charging in battery quick-swap scenarios.

Rated voltage: 600 V DC (typical); Rated current: 250 A (typical); Mating cycles: ≥10,000 (typical); Ingress protection: IP67 (typical)

• Battery quick-swap connection at swap stations
• Swap station charging cabinets

High-current POWSOK series terminals and high-power new composite-structure stamped terminals. The composite-structure stamped terminal improves arc resistance, mating life, current capacity and power-on cycle capability, uses composite plating to enhance conductivity and corrosion resistance, with automated production; machining uses the cold-heading process to improve line efficiency.

Current capacity: high current (above 100 A typical); Plating: composite plating; Process: stamping + cold heading; Arc resistance: composite structure design

• High-voltage harness terminal crimping
• Termination of high-current connection circuits

High-voltage cable pass-through boot series, easy to install, high efficiency, small size, occupying little installation space and low cost, used for cable pass-through protection of various high-voltage electrical components.

Number of cores: 2 cores (two-core waterproof boot); Ingress protection: IP67 (typical); Operating temperature: -40°C ~ +125°C (typical)

• High-voltage cable protection through sheet metal parts
• Cable pass-through sealing of various high-voltage electrical components

Lightweight supporting conductor products for harnesses. The company has developed dedicated production lines for aluminum busbars and aluminum conductors; aluminum conductors are already in cooperation with Leapmotor; the copper-aluminum terminal technology can reduce overall harness cost and weight.

Conductor material: aluminum/copper-aluminum composite; Aluminum conductor density: 2.7 g/cm3 (copper: 8.9 g/cm3; about 60%+ weight reduction at same cross-section, category consensus); Applicable cross-section: 35~95 mm2 (typical); Operating temperature: -40°C ~ +125°C (typical); Vehicle application: Leapmotor (supplied)

• Wiring harness lightweighting for new energy vehicles
• Aluminum conductor replacing copper conductor solutions