Shenzhen CPET Electronics Co., Ltd.

Why do aging tests need to be conducted

Most of the products just coming out of the production line have the complete functions they were designed with and can be put into use directly. But why do they still need to undergo aging tests? Product quality theory tells us that most product malfunctions occur in the early and late stages. The late stage is when the product reaches its normal lifespan and cannot be controlled. However, the early stage can be controlled within the factory gate. That is, before the product is delivered to the user, sufficient aging tests should be conducted to nip problems in the bud within the factory. This is what regular manufacturers do. However, counterfeit factories usually do not conduct aging tests, or rather, they hand over the work of aging tests to users. Therefore, we still often purchase some products that break down shortly after receiving them. In fact, this is the result of failing the aging tests. Since users claim part of the work from counterfeit factories, counterfeit products are usually much cheaper in a sense. Of course, users with good luck sometimes purchase counterfeit products that can be used for a very long time. The product quality theory states as follows: If a product can work continuously for a day without failure, it is very likely to work continuously for a year without failure. So if you buy a product and use it for several consecutive days without breaking down, it may follow you for many years. In fact, this is the result that the aging test has passed. In fact, the difference between legitimate manufacturers and counterfeit ones is not that significant. It's just a little bit: whether there is an "aging test" for the product and how long it lasts. Aging test generally refers to the continuous and long-term full-load operation of the power supply. How long is this "last for a long time"? Generally, it is 24 hours or 48 hours. Of course, it can also be 1 hour or 0 hours, depending on the pursuit of quality and the requirements of cost. Aging testing equipment, also known as "roasting machine" or "burning machine", means to test it harshly or "try to burn it". Only those products that have survived after being tortured to great extent are considered high-quality products.Only products that have undergone aging tests can truly be regarded as complete products. Aging tests are actually the final process of a product. Enterprises that attach great importance to credibility and quality will conduct product aging tests. Only products that have passed the aging tests will be trusted by enterprises to be handed over to customers.

The development history of aging testing equipment

For the first-generation aging equipment of resistive aging loads, the second-generation aging equipment emerged, namely the simple adjustable electronic load. Although its cost is much higher than that of the first-generation products, it can adjust the load current according to the product specifications, overcoming the pain of needing to replace the corresponding resistor when changing the product lines. At the same time, to a certain extent, it has also improved the accuracy and efficiency of aging. The second-generation load overcomes the first three shortcomings of the first-generation load, but the latter four remain prominent and fail to meet the demands of modern production processes. Although there are many standard test electronic load instruments on the market that can fully meet the aging requirements in terms of performance and functions, these instruments are usually expensive, bulky, and mainly designed for testing purposes in research and development, engineering, production, etc., making it difficult to achieve a system networking of hundreds of channels for large-scale aging. Combining the advantages and disadvantages of the standard electronic load and the previous two generations of aging loads, an optimized design was carried out specifically for the requirements of power supply aging testing. A high-performance MCU (microprocessor) was adopted as the core of the control unit, and an intelligent electronic load module for aging testing and a power supply aging testing system that centrally manages a group of such electronic modules were designed. The aging load belonging to the third generation. Its advantages are as follows: 1. The same module has up to three selectable modes: CC, CV, and LED, and is compatible with multiple products. 2. Within the specification range of the same module, the voltage/current values can be set arbitrarily to precisely match the product specifications. 3. The load mode and parameter Settings are flexible and quick. They can be set globally, or by region or layer. 4. Real-time monitoring of product aging parameters, automatic screening of abnormal products and alarm, and precise location of defective products. 5. It has a wide load setting range, high loading accuracy, and can adapt to various specifications of power supply products. 6. It can record and trace the electrical performance of all tested products, facilitating quality analysis. 7. Centralized computer monitoring and management can effectively supervise the quality of the aging process. 8. It can automatically generate aging reports, facilitating quality analysis and assessment by engineering personnel. 9. The system is easy to operate. One person can manage multiple aging areas, saving labor costs. 10. Modular structure design for convenient system maintenance. The above-mentioned are all energy-consuming aging electronic loads. There is also an energy feedback aging solution. Compared with the energy-consuming type, the most prominent feature of the energy feedback type is energy conservation and environmental protection, and the benefit it brings to users is electricity bill savings. However, due to the characteristics of their own solutions and the limitations of current technologies, energy feedback type aging systems usually only have two modes, CC/CV, and the input voltage range is relatively narrow. They are only suitable for the aging of medium and high-power adapters, industrial power supplies, communication power supplies, high-power chargers, and street lamp power supplies, etc. For the common LED driver power supplies on the market, they cannot be well compatible, mainly due to the following reasons: Firstly, due to cost constraints, LED driver power supplies are usually simple constant current sources with relatively large output ripple. If the response speed or bandwidth of the load is insufficient, it is very likely to cause oscillation between the power supply and the load. In mild cases, the voltage or current under load may be inaccurate; in severe cases, the product under test may be burned out. Secondly, the characteristics of the LED driver power supply protection circuit are required to be too high. Aging loads without LED mode generally cannot be loaded normally. For loads without LED mode, if CV mode is used to replace or simulate LED mode, overshoot is very likely to occur at the moment of loading. If the driver power supply protection is too sensitive, it will lead to the inability to load normally. If the protection action is slow, it is easy to drive the power supply of the beaker due to overshoot. Similarly, if the load bandwidth is insufficient and the response speed is too slow, the power supply is prone to overvoltage protection (OVP). The LED mode of energy-consuming aging loads performs well in these aspects. With the continuous advancement of technology, these problems of energy-fed aging loads will surely be gradually improved and eventually resolved, and aging equipment will definitely develop in the directions of energy conservation, intelligence and automation.

Why do we need aging tests

Mainly to test and enhance the reliability, stability and safety of products, conducting aging tests on products has become an important link in the production process of such products. The so-called "aging" refers to the simulation of a high-temperature harsh condition to conduct a long-term full-load test on products (also known as burn-in test or burn-in test), in order to simulate the harsh conditions that may occur during actual use to verify the performance of the products. The dummy loads used in traditional aging test equipment are mostly high-power resistors, which is the first generation of aging equipment. Its advantages are low cost and simplicity. However, due to the wide variety and specifications of power supply products, the same power supply factory often has many models, and the output specifications of each model are not the same. The impedance and power of the required dummy load are also different. Therefore, the disadvantages of traditional resistance-type aging equipment have become increasingly prominent, mainly manifested as follows: 1,The resistance value of the resistor is fixed, and there are few available specifications. Many need to be specially customized from the resistor manufacturer. 2. The power supply specifications are diverse, and the resistors cannot be precisely matched to the exact current required for aging. 3. The resistance error is large, and it is prone to deviation after temperature rise, making it impossible to ensure 100% load aging of the product. 4. Adjusting the load size requires calculation first. Selecting the load resistance can only obtain an approximate current value. 5. The aging process cannot be automatically monitored and requires manual inspection one by one, which is inefficient and prone to omissions. 6. The parameters of the aging process cannot be recorded, which is not convenient for quality traceability management. 7. It is impossible to generate aging reports, which is not convenient for the analysis and evaluation of product quality.

About SHENZHEN CPET ELECTRONICS CO.,LTD

Established CPET Founded in Shenzhen in 2010, focusing on aging testing of power electronics products, and expanded to ATE and automation in 2019. The exist ing company has 300 + employees and 80 + R & D engineering teams. Product Power electronic products intelligent manufacturing production line: programmable electronic load, programmable feedback load, program mable power module, programmable two-way source load, burn-in test system, automatic test system (ATE), automated test production line.   Manufacture Aging test system, ATE equipment monthly production capacity of 200 + sets, automated test production line monthly production capacity of 2+ sets, unit module monthly production capacity of 10000 + sets.   Quality Automation of key processes SMT/AI/ICT/Laser Mark/ATE/Hi-pot/Burn-in,The test department inspects the R&D quality throughout the whole process, and the quality control department inspects the process quality throughout the whole proccess.   Design The average working experience of the core members of the R&D team is more than 12 years, and the responsibility is to make the products more intelligent, more efficient and more reliable.   Technology Pioneered eight industry technology, leading the industry progress, independent intellectual property patents, more than 50, some products to apply for CE certificattion.   Serve Professional sales and service team 24 hours a day service, the shortest service response in 2hrs and on-site service.   Client Thanks to all the customers OEM (PHILIPS, SAMSUNG, PANSONIC...), ODM (BYD, LITEON, Flextronic...) EMS (FOXCONN, SALCOMPA, TENPAO...), Local Brand (HuaWei, MOSO, OPPLE, TCL, CVTE, KONKA, Hisense) ) and domestic and foreign agents, and are exported to Europe, America,India, Indonesia, South Korea, Japan, Algeria, etc. through Alibaba, GILE and Hi-Tech Fair, etc., more than 4000 domestic and foreign customers.

Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) won the honor of "Little Giant" enterprise

In the golden autumn, on the occasion of harvest, Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) won the honor of specialized new "Little Giant" enterprise. On September 2, 2024, Shenzhen SME Service Bureau publicized the sixth batch of specialized new "Little Giant" enterprises and the third batch of specialized new "Little Giant" enterprises through the enterprise list review. Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) entered the list of the sixth batch of specialized and special new "little giant" enterprises.   To become a specialized new "little giant" enterprise of the Ministry of Finance and the Ministry of Industry and Information Technology is the recognition of the state for CPET's steadfast work and pioneering innovation in the fields it engages in; It is the recognition of the outstanding contribution made by the state to the specialization, refinement, peculiarity and novelty of CPET in the industry it engages in; It is the country's care and support for the CPET cause, and it is also a strong impetus for CPET people to continue their efforts and create new achievements.   Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) is a national high-tech enterprise which takes technological innovation as the development source and has independent intellectual property rights and core technologies. Founded in 2010 in Shenzhen, focusing on the research and development, manufacturing, sales and service of various intelligent manufacturing equipment such as power electronic products aging test, automatic test (ATE), automation equipment, and intelligent monitoring software. It is an industry-leading supplier of test and aging system solutions for power electronics.   Today, China has become the world's manufacturing center, especially the industrial manufacturing scale continues to expand, technology changes with each passing day, CPET products are widely used in power electronics R & D, design and production testing. It has rich experience in equipment manufacturing and application of power batteries, LED lighting, home appliances, photovoltaic, energy storage, electric vehicles, military, aerospace, electric power and new energy industries. CPET brand has been highly recognized and praised by more than 4000 excellent partners such as Huawei, BYD, Lite-on, Philips, Samsung, Panasonic, Warbro, Infective, Flextronics, Trimble, TCL, CVTE, Chuangxin Laser, Hisense, Xiaomi, Inboer, Cossbro and so on, and enjoys high brand awareness in domestic and foreign markets.   CPET takes technological innovation as the development source, focuses on the core technology of the industry, and has been paying attention to research and development investment, accounting for more than 30% of the R&D personnel, 30% of the profit reward innovation, and more than 30% of the annual growth of new products and sales. It has more than 50 invention patents and software Copyrights, and has won the honors of Shenzhen Double Software Enterprise, Shenzhen Excellent Software Enterprise, Shenzhen High-tech enterprise and national high-tech enterprise.   CPET conform to the trend of industry development, adhere to the right strategic direction, adhere to independent innovation, innovation, continuous progress, CPET people will not slack, always adhere to the customer as the center, focus on customer challenges and pressure, to create maximum value for customers. To become a world-class industrial equipment supplier is the common vision of all CPET people. Let's embrace the bright future that digitalization and intelligence bring to mankind.

CPET won three awards including the Innovation Award

-- SNEC 9th International Energy Storage and Battery Technology and Equipment Exhibition Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) won three awards   On September 27, 2024, SNEC's 9th (2024) International Energy Storage and Battery Technology and Equipment (Shanghai) Conference and Exhibition was the focus of attention, and the "Ten highlights" selection and award ceremony were announced in Shanghai New International Expo Center, China. Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) with its strong strength, professionalism and excellent innovation was highly recognized by the Organizing committee, and won the "Energy Storage Innovation Enterprise Award", "Energy Storage Industry Application Innovation Award" and "Energy Storage Industry New Equipment Innovation Award" three awards.     CPET has been engaged in the research and development, manufacturing, sales and service of aging test systems for energy storage and new energy products for many years, and knows that the rapid development of energy storage and new energy industry in recent years, new products continue to emerge, product updates and iterations are rapid, and the contradiction between production efficiency and quality assurance and the development of the current industrial manufacturing system is prominent. CPET deeply understands the manufacturing pain points in the industry. Timely launch of CPET unit modular automation intelligent manufacturing equipment system solution, professional energy feedback, 80% energy saving, automatic operation, efficiency increase by 50%, is to achieve digital, safe and efficient, green energy saving, intelligent manufacturing in a new era system solution.     CPET specializes in providing intelligent aging test solutions for household energy storage, commercial energy storage, large energy storage, photovoltaic inverter, AC charging pile, DC charging module, DC charging pile, vehicle power supply assembly, vehicle powertrain and other fields, and provides battery charging and discharging test solutions for power battery PACK and other battery in the field of energy storage. CPET independently develops photovoltaic analog DC power supply, high voltage bidirectional source load module, AC feedback load, low voltage DC feedback load, charging protocol board and other products. Through the use of digital control, soft switch, inverter feedback and other industry leading technology, constantly introduce more efficient, more intelligent, more reliable new energy intelligent aging test system products, truly practice the concept of "green, low carbon, energy saving and emission reduction".     CPET products are widely used in power electronics R & D, design and production testing, with rich experience in energy storage, photovoltaic, electric vehicles, power batteries, LED lighting, home appliances, military, aerospace, electric power and new energy industry equipment manufacturing and application. CPET brand has been highly recognized and praised by more than 4000 excellent partners such as Huawei, BYD, Lite-on, Philips, Samsung, Panasonic, and enjoys high brand awareness in domestic and foreign markets.   CPET takes technological innovation as the development source and focuses on the core technology of the industry. It has more than 50 invention patents and software Copyrights, and has won the honors of Shenzhen Double Software Enterprise, Shenzhen Excellent Software Enterprise, Shenzhen High-tech Enterprise and national high-tech enterprise. It is a national specialized special new "little giant" enterprise.   The "Top Ten Highlights" selection activity aims to highlight the enterprises, products and technologies that can have innovative value in the industry. This exhibition is a cloud of famous enterprises at home and abroad, and industry talents are gathered. CPET won three awards in a row. This award is the result of CPET's perseverance, perseverance and hard work for more than ten years. It is the industry's recognition of CPET's firm direction, hard work and continuous innovation; It is also the spur and expectation of the partners for CPET to follow the trend, exert its potential and continue to make progress. CPET will be committed to the development of energy storage and new energy, and contribute to the construction of a sustainable world.

Media interview | General Manager of CPET accepted an interview with Solar Energy Magazine

-- Mr. Wang Jianbo, general manager of Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) participated in SNEC Shanghai Energy Storage Exhibition and accepted media interview   On September 25, 2024, Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) participated in SNEC 9th (2024) International Energy Storage and Battery Technology and Equipment (Shanghai) Conference and Exhibition. During the exhibition, Mr. Wang Jianbo, general manager of CPET, accepted an interview with Solar Magazine.     Mr. Wang Jianbo is full of confidence in the development of energy storage and new energy industry. He believes that China's business environment is stable as a whole, the upstream and downstream development is good, and the strong and continuous support of the government has promoted the coordinated development of the industry. At present, the rapid growth of energy transformation and electricity consumption has brought major development opportunities for the industry, and the market demand is strong. At the same time, it also brings more market opportunities for new energy equipment enterprises.   In this exhibition, CPET brought aging, test equipment and automation equipment for energy storage, photovoltaic, inverter, charging pile, automotive electronics and other such products. CPET equipment exposes products with process defects in advance by simulating the use state of products in high temperature, full load and other extreme environments, ensuring the qualified rate of customers' shipped products. Maintain good reputation and improve the image of enterprise quality.   In this exhibition, CPET deeply understands the manufacturing pain points of the industry, in order to cope with the contradiction between the original supply manufacturing system capacity and the current industry's requirements for product supply and quality, timely launch CPET unit modular automation intelligent manufacturing equipment system solutions, professional energy feedback, energy saving 80%, automatic operation, efficiency increased by 50%, It is a new era system solution for realizing digitalization, safety and efficiency, green energy saving and intelligent manufacturing.   CPET core technology has been accumulated for more than ten years, the core components of the equipment are self-developed and self-produced, and the categories are rich. It has excellent performance from the design space utilization rate, green energy saving in the use process, intelligent monitoring and other aspects. It supports flexible customization and customized solutions to provide customers with customized and complete solutions to help customers lead the industry. CPET has a perfect and strong quality assurance and service system, to provide customers with quality after-sales service, technical support team 24 hours online, according to the actual situation of customers to provide remote connection to answer questions, on-site technical support, or on-site tracking and other services, one-stop to solve customers' worries.   Shenzhen Zhongkeyuan Electronics Co., LTD. (CPET) was founded in 2010 in Guangming District, Shenzhen, the office area of more than 10,000 square meters, more than 300 employees, R & D technical team of more than 80 people. Focus on the research and development, manufacturing, sales and service of all kinds of intelligent manufacturing equipment such as power electronic products aging test, automatic test (ATE), automation equipment, and intelligent monitoring software. It is an industry-leading power electronic products testing aging system solution provider with more than 50 invention patents and software Copyrights. Won the Shenzhen double software enterprise, Shenzhen excellent software enterprise, Shenzhen high-tech enterprise and national high-tech enterprise and other awards. It is a national specialized special new "little giant" enterprise.   CPET products are widely used in power electronics R & D, design and production testing, with rich experience in energy storage, photovoltaic, electric vehicles, power batteries, LED lighting, home appliances, military, aerospace, electric power and new energy industry equipment manufacturing and application. CPET brand has been highly recognized and praised by more than 4000 excellent partners such as Huawei, BYD, Lite-on, Philips, Samsung, Panasonic, and enjoys high brand awareness in domestic and foreign markets.