As the requirements for safety, efficiency and cost of the three-electric systems of new energy vehicles, including batteries, motors and electronic controls, continue to increase, the demand for high precision and high efficiency in welding and weld inspection of related products has become increasingly prominent. To meet this challenge, NewOCT series products for the manufacturing of three-electric systems of new energy vehicles have been launched, filling the gap of high-precision online quantitative inspection equipment in China, empowering new energy vehicle manufacturing with innovative technologies, and helping the industry achieve an all-round upgrade of welding quality.
| Serial number | Model | Application scenario |
| 1 | LWD-NewCell | Weld penetration detection of power battery housing and cover components |
| 2 | LWD-NewBus | Welding penetration detection of power battery cells and modules |
| 3 | LWD-NewECS | Welding penetration detection of electric drive and electric control and flat wire motor |
1. LWD-NewCell welding penetration detection system
In the production and manufacturing process of power batteries, the battery shell, pole, explosion-proof valve, sealing nails, etc. involve welding and sealing processes, which are high-incidence factors for safety hazards such as battery leakage, short circuit, and open circuit. In response to the pain point of the lack of efficient quality detection methods for such precision welding processing in the market, Newlas launched the LWD-NewCell battery shell and cover component welding penetration detection system.
Special fields:
Welding inspection of battery shell and cover parts
- Round/square sealing pins、explosion-proof valves、 pole welding
- Shell side welding
- Shell bottom plate welding
- Top cover sealing welding
Special equipment features:
- The welding seam tracks of sealing pins、explosion-proof valves、poles and shells are closed graphics, and LWD-NewCell special equipment can adapt to changes in speed direction and size.
2. LWD-NewBus welding penetration detection system
The Busbar is a key component for the series and parallel connection of battery cells. The larger the battery pack, the more welding points the Busbar has. Difficulty in ensuring consistency can easily lead to cold welding. The battery adapter is the “bridge” for current transmission inside the battery cell. It needs to withstand alternating loads and vibration during battery transportation and use. The welding quality of both seriously affects the performance and safety of the battery pack. A complete welding quality detection solution is urgently needed to control the welding quality. For this reason, Newlas has launched the LWD-NewBus battery cell and module welding penetration detection system.
Special fields:
Welding penetration detection of battery cells and modules
- Busbar welding of cylindrical/square batteries
- Pole ear welding of soft-pack batteries
- Positive and negative adapter welding
Special equipment features:
- Busbar has many welding points, and the maximum penetration detection area of LWD-NewBus is 320mm, supporting multi-point welding and penetration detection;
- LWD-NewBus equipment supports on-the-fly welding penetration detection.
3. LWD-NewECS penetration detection system
The rapid development of new energy vehicles has led to the widespread application of all-in-one electric drive and electric control systems. The welding quality of copper flat wires/copper bars directly determines the quality and performance of electric drive and electric control/motors, so the requirements for the welding quality of copper flat wires/copper bars are increasing. Based on this, Newlas has launched a special equipment, the LWD-NewECS electric drive and electric control and flat wire motor welding penetration detection system, which can quickly and accurately detect welding quality, and achieve a dual improvement in efficiency and quality.
Special fields:
Welding penetration detection of electric drive and electric control and flat wire motor
Special equipment features:
- Copper has high laser reflectivity, and LWD-NewECS special equipment has super high anti-reflection ability;
- The assembly consistency of copper Busbar and copper flat wire terminal is poor, and the gap control is difficult. LWD-NewECS special equipment is compatible with a gap of <0.3mm.
4. Advantages of NewOCT welding penetration detection system
Traditional penetration detection methods such as photoelectric detection, non-destructive testing, destructive testing and other methods have limitations and lags, and cannot meet the strict online detection requirements of the industry. NewOCT, a penetration detection device based on optical coherence tomography technology developed by Newlas, has significant advantages:
- Real-time online detection, detection and welding process are carried out simultaneously, detection is completed when welding is completed, and 100% full inspection of products is achieved;
- High detection accuracy (micron level), which can prevent missed detection and ensure that the overkill rate is within 1%;
- Simultaneous control of welding and detection, efficient and stable data processing, and a variety of penetration evaluation schemes;
- Quantitative detection of penetration value, direct conclusion of whether it is qualified or not, and the detection results can be recorded and traced;
- Fast welding speed, high-beat production, supporting welding speed ≥ 600mm/s;
- Stable and reliable equipment, convenient and easy to install and debug, simple operation method, low learning cost;
Newlas always adheres to the concept of “high-speed motion control + online quality detection” to provide high-precision, intelligent laser welding and penetration detection solutions for the manufacturing of new energy vehicle three-electric system. The three types of NewOCT welding penetration detection systems launched this time will be displayed at the Munich Shanghai Expo (March 11-13). At that time, all industry partners are sincerely invited to visit the Newlas booth (N2-2336).
