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What are the reliability test items for PCBA?
PCBA (PCB Assembly) refers to the process of mounting components on a bare PCB board, inserting components and realizing soldering. The circuit boards we usually see are all PCBA boards with components soldered on the basis of PCB. PCB is a “bare board” or “uncoated board&...Read more -
Evaluation criteria for post-welding PCB surface cleanliness
Today, when the no-clean process is widely adopted, it is extremely difficult to obtain a very clean post-welding PCB surface. The presence of flux residues on the post-welding PCB surface is inevitable. The problem lies in how to define cleanliness. If the PCBA board surface is visually co...Read more -
PCB/PCBA Failure analysis
Generally speaking, the number of failed products is limited, or even there is only one. Therefore, for the analysis of failed products, we must follow the principle of layer-by-layer analysis from outside to inside and from non-destructive to destructive. Avoid destroying the failure site ...Read more -
Principle of PCBA strain testing
Utilizing the strain effect of metal conductors, the strain of the PCBA is quantified by the change in resistance value of the strain gauge (strain rosette) attached to the PCBA as it undergoes mechanical deformation along with the deformation of the PCBA. Thus, by comparing this quantified strai...Read more -
Why conduct PCBA strain testing?
To adapt to the growing international emphasis on environmental protection, PCBA has been changed from lead-based processes to lead-free processes, and new laminate materials have been applied. These changes will all cause changes in the solder joint performance of PCB electronic produ...Read more -
Research on environmental reliability test of new energy vehicle motor drive system
With the aggravation of the energy crisis and people’s yearning for clean energy, the state and various industry institutions have invested a lot of resources in the research of pure electric vehicles, hybrid vehicles, fuel cell vehicles and other new energy vehicles, and the three key tech...Read more -
Electric drive test items and test standards
Test standards are divided into national standards, international standards, industry standards, and enterprise standards. National standard: 1) GB/T 18488-2015 electric vehicle motor and controller thereof 2) GB/T 2423 Basic environmental test procedures for electrical and electronic products 3)...Read more -
Motor controller, motor, electric drive system common test items
1. Basic performance Motor controller Maximum operating voltage Minimum operating voltage Maximum working current Minimum working current Insulation test Withstand voltage test Air tightness test Temperature rise test Voltage frequency variation Voltage drop Impulse current Electric machine Re...Read more -
Common Test Standards for Battery Packs and Electric Drive Systems
Power battery GB/T 31467.1-2015 Lithium-ion power battery packs and systems for electric vehicles: Part 1 Test procedure for high-power applications GB/T 31467.2-2015 Lithium-ion power battery packs and systems for electric vehicles: Part 2 Test procedure for high-energy applications GB 38031-202...Read more -
The trend of new energy heavy-duty trucks
With the development and research of new energy heavy-duty trucks in the industry, considering the main factors of economy, integration, safety, and lightweight, high-speed, high efficiency, high reliability, and good NVH of the electric drive system, the trend of new energy heavy-duty trucks mai...Read more -
what is the core technology of the new energy electric drive system ?
The electric drive system mainly consists of the motor, the motor control unit, and the reducer. People’s core needs for the power unit are no more than: ① Fast response and powerful power; ② High efficiency and low energy consumption; ③ Low failure rate, ruggedness, reliability. There are ...Read more -
New Energy Vehicle Drive System Environmental and Reliability Testing Research
The core components of new energy vehicles (NEVs) primarily consist of three parts: the motor drive system, battery system, and vehicle control system, revolutionizing the traditional automotive development model. The motor drive system, which directly converts electrical energy into mechanical e...Read more
