With the rapid development of electric vehicles (EVs), ensuring the safety, durability, and performance of EV charging connectors has become critical. EV charging connectors, commonly referred to as charging guns, must undergo rigorous testing to meet international standards and customer expectations. This document outlines the testing requirements for EV connectors, the equipment used, and the comprehensive solutions we offer.   Testing Requirements for EV Charging Connectors To ensure high performance and reliability, EV charging connectors need to pass various tests covering electrical safety, mechanical durability, and environmental adaptability,etc. Below are the key testing areas and corresponding equipment: Electrical Safety Testing Insulation Resistance Tester: Ensures that the connector maintains adequate insulation under high voltage to prevent leakage current. High Voltage Tester: Verifies the connector's capability to withstand extreme voltage conditions without failure. Mechanical Durability Testing Insertion and Withdrawal Life Tester: Simulates repeated plug-and-unplug cycles to assess the mechanical lifespan of the connector. Tensile Strength Tester: Measures the mechanical strength of cables and connectors, ensuring robust design. Drive-over Test Machine: Check whether a plug or vehicle connector shall have adequate resistance to damage from being driven over by a vehicle. Cable Flexing Test machine: Simulates the flexing withstand of "mechanical strength" part of the power connection cable of the charging vehicle plug and socket during normal use. Cord Anchorage Pull and Twist Test Machine: Verify the ability of charging plug and socket, and connection cable accessories to withstand specified pulling force and torque. Thermal Performance Testing Temperature Rise Test Equipment: Monitors heat buildup in the connector during prolonged use under load. Heat Resistance Chamber: Evaluates connector performance under extreme temperature conditions. Environmental Testing Vibration and Shock Tester: Simulates the conditions experienced during transportation and operation to ensure connector durability. Dust and Water Resistance Tester: Verifies compliance with IP ratings (e.g., IP67) for protection against environmental factors. Our Products and Services We provide a full suite of products and services designed to meet the comprehensive testing needs of EV charging connectors: Products Advanced Testing Equipment: We offer state-of-the-art testing instruments tailored for EV connector evaluation, including: Insulation resistance testers. High-voltage testers. Mechanical durability testers. Environmental test chambers.                                                                                                     Customized Testing Systems: Our engineering team can design and manufacture customized testing systems to address specific requirements, ensuring flexibility and precision in testing processes. Services Comprehensive Testing Solutions We develop end-to-end testing protocols for charging connectors to meet regulatory and industry standards, such as IEC 62196 and ISO 15118. Technical Support and Training Our team provides hands-on training for your staff to operate the testing equipment and interpret results effectively. Equipment Maintenance We offer regular maintenance services to ensure long-term accuracy and reliability of testing equipment. Why Choose Us? Extensive Industry Expertise: With years of experience in the testing equipment field, we deeply understand the testing requirements for EV charging connectors. Tailored Solutions: Our solutions are designed to adapt to the evolving needs of our clients, ensuring maximum flexibility. Cutting-Edge Technology: All equipment we provide incorporates the latest advancements, guaranteeing precision and reliability. Customer-Centric Approach: We are committed to delivering exceptional service and supporting our clients every step of the way.

Usage of Vehicle Rain Spray Test Booth The primary purpose of this test system is to evaluate the vehicle's resistance to rainwater penetration and its overall rainproof performance when exposed to rain, either during or after rain conditions. The test checks whether the assembly of the body, doors, windows, and sunroof is properly aligned, whether the sealing performance is reliable, and whether the installation methods are correct and meet standards. This system is designed to assess the rainproof and sealing performance of various types of passenger cars and vans, ensuring their durability and protection against rainwater infiltration. Applicable Standards Why Choose Us: Proven Technology & Extensive Experience: We offer mature, reliable technology backed by numerous successful case studies. Customizable Solutions: Our test systems can be tailored to meet the specific needs and requirements of each customer. User-Friendly & High-Performance: The system is easy to operate, with stable performance, intelligent controls, and top-notch quality, ensuring long-term reliability and durability. Comprehensive Support: We offer a one-year warranty and lifetime maintenance services for all of our equipment. Preliminary Testing Requirements Questionnaire   1. Indoor or Outdoor Installation: Is the rain tester to be used indoors or outdoors? What is the approximate size of the planned installation area at the customer’s site?   2.Vehicle Dimensions: What are the approximate length, width, and height ranges of the vehicle models to be tested?   3. Spray Area Coverage: Normally, the test sprays the front, back, left, and right sides. Is it also necessary to spray the top and bottom of the vehicle?   4. Drying after Water-Spray : Is it required to blow-dry the vehicle after spraying?   5. Production and Automation Requirements: What are the production (JPH) and automation requirements for the shower tester? Should high-speed production lines use automated conveyor systems with plate chains?   6. Equipment Configuration: Are there specific requirements for the equipment’s components, such as the material of the pipes (stainless steel/galvanized), electrical systems, motor, water pump brand, etc.?   7.Water Storage Tank Infrastructure: Is it acceptable for the customer to dig foundations for a water storage tank at the installation site? Can the customer handle the ground-embedded storage tank infrastructure?          

Essential Equipment and Testing Procedures for Battery Cell Safety Ensuring the safety and reliability of battery cells is critical, especially for new energy applications. Below, we delve into the must-have equipment and standardized testing steps designed to guarantee battery performance and safety:                                                         Battery Cell Thermal Abuse Test Chamber This chamber simulates high-temperature conditions based on international standards like UL1642 and IEC62133. By gradually increasing the temperature, it evaluates the cell’s stability under extreme heat to ensure no fire or explosion occurs. Battery Cell Short Circuit Test Chamber Equipped with PLC automated controls, this device simulates external short circuits. It measures voltage, current, and surface temperature changes to assess the battery's safety performance under short-circuit conditions. Battery Low-Pressure Test Chamber Designed to mimic high-altitude, low-pressure environments, this chamber tests battery stability under reduced pressure, ensuring no safety hazards arise.  Battery Crush Tester Simulating scenarios like waste disposal compression, this device evaluates how batteries withstand pressure without causing external short circuits, ensuring their safety in real-world situations. Battery Nail Penetration Tester By driving a steel nail through the battery cell, this test simulates internal short circuits, ensuring the cell remains stable without igniting or cracking during internal failures. Battery Impact Tester This equipment applies varying levels of force and impact angles to test the battery’s resistance to shocks, ensuring it won't catch fire or explode after a collision. Battery Drop Tester Featuring an automated structure, this machine simulates free-fall scenarios. It allows adjustments for drop height and force, verifying the battery’s safety and integrity after impact Battery Cell Fire Resistance Chamber This chamber evaluates the battery’s behavior in fire conditions. It ensures the battery doesn’t penetrate the aluminum mesh during flame exposure, meeting stringent safety standards. Each rigorous testing step provides a solid foundation for ensuring the safety of new energy vehicle batteries. These state-of-the-art devices and well-defined procedures are key to delivering top-tier battery quality and building consumer trust.     At Sinuo Testing Equipment Co., Limited, we specialize in providing a comprehensive range of cutting-edge testing equipment and tailored solutions for new energy battery cells. Our advanced systems are designed to meet international safety and performance standards, ensuring reliable and accurate results for every application. Whether you need equipment for thermal abuse, short circuit, drop tests, or custom testing scenarios, we’ve got you covered. Partner with us for innovative, high-quality solutions that guarantee the safety and reliability of your battery products.   We welcome inquiries from all interested clients and are ready to assist you in finding the perfect testing solution. Contact us today to take your battery testing to the next level!  

  The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529[1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and water. It is published in the European Union by the European Committee for Electrotechnical Standardization (CENELEC) as EN 60529.         1. Purpose of Testing The primary objective of IP dustproof and waterproof testing is to ensure that products can effectively prevent the intrusion of dust and water during use. This guarantees their proper functioning and extends their service life. Test results hold significant value for product design, manufacturing, quality control, and market promotion.     2. Testing Standards IP dustproof and waterproof tests typically adhere to standards set by the International Electrotechnical Commission (IEC), such as IEC 60529 (updated to IEC 60529:2013 or later versions). These standards categorize dustproof and waterproof performance into different levels, evaluated through specific testing methods and conditions to assess a product’s protection capability. 3. First digit: Solid particle protection The first digit indicates the level of protection the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects, ranging from IP0X (no dust protection) to IP6X (complete dust protection). Common testing methods include:       Dust Chamber Testing: The device is placed in a dust chamber where dry dust particles are dispersed to simulate real-world environmental conditions. Standards such as IEC 60529 are followed. Dust Blowing Testing: Using equipment that generates air-blown dust, this test simulates exposure to dusty environments with strong winds. Standards like IEC 60068-2-68 may apply.   4. Second digit: Liquid ingress protection The waterproof level is represented by the second "X" in IPXX, ranging from IPX0 (no water protection) to IPX8 (protection against long-term immersion under specific conditions defined by the manufacturer). Common testing methods include: Drip Testing (IPX1 and IPX2): IPX1: Vertical drip testing simulates water droplets falling vertically onto the product. IPX2: Tilted drip testing simulates water droplets falling at a 15° angle from vertical.   Rain Testing (IPX3 and IPX4): IPX3: Spray testing simulates rainfall from various angles. IPX4: Splash testing simulates water splashing from all directions.   Water Jet Testing (IPX5 and IPX6): IPX5: Water jet testing simulates exposure to low-pressure water jets. IPX6: Powerful jet testing simulates exposure to high-pressure water jets.   Immersion Testing (IPX7 and IPX8): IPX7: Short-term immersion testing typically involves submersion in 1 meter of water for 30 minutes. IPX8: Long-term or deep-water immersion testing is conducted under specific conditions defined by the manufacturer.             5. Testing Process The IP dustproof and waterproof testing process generally includes the following steps: Sample Preparation: Select representative samples of the device to ensure they accurately reflect the entire product line. Environmental Setup: Configure laboratory conditions such as temperature, humidity, and air pressure per standard requirements to simulate real-world usage scenarios. Test Procedure Development: Develop a detailed testing plan based on the device’s characteristics and testing needs, including parameters like testing duration, spray angles, and water volume. Test Execution: Conduct dustproof and waterproof tests as per the plan, documenting the device's performance and relevant parameters. Analysis and Evaluation: Analyze and evaluate the test results to determine whether the device meets the applicable standards. Report Preparation: Compile a comprehensive report detailing the testing methods, data, analysis, and conclusions. Applications of IP Code Testing and Our Offerings Applications: IP Code testing is widely used across various industries to ensure products meet dustproof and waterproof standards. Key application areas include: Consumer Electronics: Smartphones, tablets, and other portable devices. Automotive and Transportation: Car and motorcycle components, such as headlights and sensors. Household Appliances: Washing machines, refrigerators, and kitchen appliances. Telecommunications: Outdoor communication equipment and network devices. Lighting and Signaling: Streetlights, outdoor LED lights, and traffic signal systems. Our Solutions: At Sinuo Testing Equipment Co., Limited, we pride ourselves on delivering a full spectrum of cutting-edge IP Code testing equipment and tailored solutions designed to exceed your expectations. From standard-compliant devices to fully customized systems for unique testing needs, we offer precision-engineered solutions that ensure reliability, efficiency, and unparalleled quality. Partner with us to elevate your testing capabilities and experience innovation at its best!    

Walk-In Temperature and Humidity Environmental Chamber: Features, Applications, and Selection Guide The walk-in temperature and humidity environmental chamber is designed for testing entire systems or large components under various conditions such as low temperature, high temperature, temperature fluctuations, constant heat, and alternating damp heat. Also known as a "constant temperature and humidity room," it can be customized in size and functionality based on user requirements. Its modular design, sleek appearance, and advanced airflow system make it adaptable to diverse testing needs. Equipped with a touchscreen and PLC controller, this chamber is a high-tech solution for precise environmental simulation. This article explores the working principles, application fields, technical features, key selection criteria, and specifications of the walk-in temperature and humidity chamber, offering readers a comprehensive understanding of this sophisticated product.         1. Working Principle The chamber integrates advanced cooling, heating, humidifying, dehumidifying, and air circulation systems to achieve precise temperature and humidity control. Its interior uses multi-layer insulation and high-efficiency heat exchangers to ensure a stable and uniform environment. The control system, powered by a microprocessor or PLC and high-precision sensors, continuously monitors and adjusts environmental parameters in real-time to maintain preset values with exceptional stability during extended operations.       2. Application Fields The walk-in chamber is widely used in industries requiring environmental simulation, including: Aerospace: Testing the performance of materials and electronic components under varying temperature and humidity conditions. Automotive Electronics: Simulating extreme climatic conditions to assess the durability and reliability of automotive parts. Biomedical and Pharmaceuticals: Ensuring product stability and safety under controlled environmental conditions. Food Preservation and Agriculture: Studying storage conditions and agricultural research. Construction Materials Testing: Evaluating the durability and performance of building materials under different environmental factors.   3. Technical Features Large Capacity Design: With a spacious interior, the chamber can accommodate multiple samples or large equipment, significantly enhancing testing efficiency. High-Precision Control: Advanced algorithms and sensors ensure precise temperature and humidity control to meet high-accuracy testing requirements. Multi-Stage Programming: Supports multi-segment programming, allowing users to preset multiple test phases for fully automated testing workflows. Safety Features: Equipped with multiple safety mechanisms, including over-temperature protection, power failure memory, and leakage protection, ensuring reliable and secure operation. Eco-Friendly and Energy Efficient: Incorporates high-efficiency cooling and heating components with energy-saving designs, reducing power consumption and aligning with modern environmental standards. 4. Key Selection Criteria When selecting a walk-in temperature and humidity chamber, consider the following factors: Testing Requirements: Define your testing goals, sample types and sizes, and required environmental conditions to choose the appropriate model and specifications. Control Precision: Ensure the chamber meets the accuracy levels required for your tests. Brand and After-Sales Support: Opt for a reputable brand to guarantee product quality and reliable after-sales service. Cost-Effectiveness: Balance the purchase price, operating costs, and long-term benefits to select a product with the best value.   5. Technical parameters          Capacity Inner chamber size       (W*H*D) Temperature range Specification/Model     8m³     2000*2000*2000 (mm) -40 °C ~+150°C SN886-8-(-40 °C) -50 ℃～+120℃ SN886-8-(-50 °C) -60 °C ~+150°C SN886-8-(-60 °C) -70 °C ~+150°C SN886-8-(-70 °C)     16m³     4000*2000*2000 (mm) -40 °C ~+150°C SN886-16-(-40 °C) -50 ℃～+120℃ SN886-16-(-50 °C) -60 °C ~+150°C SN886-16-(-60 °C) -70 °C ~+150°C SN886-16-(-70 °C)     24m³     4000*2000*3000 (mm) -40 °C ~+150°C SN886-24-(-40 °C) -50 ℃～+120℃ SN886-24-(-50 °C) -60 °C ~+150°C SN886-24-(-60 °C) -70 °C ~+150°C SN886-24-(-70 °C)     30m³     5000*2000*3000 (mm) -40 °C ~+150°C SN886-30-(-40 °C) -50 ℃～+120℃ SN886-30-(-50 °C) -60 °C ~+150°C SN886-30-(-60 °C) -70 °C ~+150°C SN886-30-(-70 °C)     1. Sample limitation This test chamber prohibits: Testing or storage of flammable, explosive, and volatile substance samples Testing or storage of samples of corrosive substances Testing or storage of biological samples Testing or storage of strong electromagnetic emission source samples Testing or storage of radioactive material samples Test or storage of highly toxic substance samples Testing or storage of samples that may produce flammable, explosive, volatile, highly toxic, corrosive and radioactive materials during testing or storage 2. Volume, size and weight 2.1 Nominal content volume 6M³ 2.2 Inner chamber size D(2000)mm ×W(1500)mm× H(2000)mm 2.3 External dimensions Approx. D(3750)mm ×W(2120)mm× H(2450)mm 2.4 Weight Approx. 1500KG 3. Performance 3.1 Temperature range Temperature range:-50 ℃～+120℃ 3.2 Humidity range (20 ～ 98)% RH (refer to temperature and humidity controllable range chart, no active wet and heat load) Temperature and humidity controllable range chart 3.3 Temperature fluctuation ≤±0.5℃ (The temperature fluctuation is half of the difference between the measured maximum temperature and the minimum temperature at the center point) 3.4 Temperature uniformity ±2.0℃ (Temperature uniformity is the arithmetic mean of the difference between the highest and lowest temperature measured in each test) 3.5 Temperature error ±2.0℃ 3.6 Heating time +20℃～+120℃≤45min (Non-linear no-load) 3.7 Cooling time +30℃～-50℃≤75min (Non-linear no-load) 3.8 Relative humidity error (Damp heat only) ±3%RH 3.9 Working noise   Sound level≤75dB (Measured in a soundproof room with an ambient temperature of 25 ° C and low echo; using A weighting, the average value of 8 points is tested; each test point is 1 meter away from the noise source and 1 meter away from the ground) 4. Structural characteristics 4.1 Material     1. Outer wall material: Cold rolled steel plate, pickling and phosphating advanced powder baking paint 2.Inner wall material: SUS304# stainless steel plate 3. Chamber insulation material: rigid polyurethane foam + glass fiber 4.2 Air duct parts Centrifugal fan; the air outlet can adjust the air volume, height and return air volume 4.3 Door Double open hinged door, adopts reaction-free grip handle, equipped with observation window, lighting lamp, window/door frame anti-condensation electric heating device, door opening size: (approximately) 1.5*2M 4.4 Observation window There are two conductive film explosion-proof tempered glass observation windows on the door (with anti-condensation function) 500W×600H (mm) 4.5 Fan Long axis centrifugal fan 4.6 Sample rack Two built-in stainless steel adjustable movable tray racks   4.7 Impeller   Use stainless steel impeller imported from Taiwan 4.8 Heater Nickel-chromium alloy electric heater   4.9 Refrigeration Compressor     Germany Bitzer compressor   ​4.10 Evaporator     Fin type evaporator   4.11 Refrigerating method     Mechanical compressor cascade   4.12 Cooling method     Air-cooling   4.13Temperature control instrument     TH1200-A, 7-inch smart LCD touch programmable controller 4.14 Lead hole Φ100mm, 1pc, equipped with a special foam rubber plug (located on the left side of the chamber)   5. Heating, humidification and refrigeration systems and their working principles   5.1 Heating system Stainless steel sleeve type anti-dry heating tube built-in nickel-chromium alloy heating wire U-shaped fin type stainless steel high-speed heating electric heater is used for heating Completely independent system, does not affect the control circuit 5.2 Humidification system Humidification method: 1. External detachable boiler humidification method or built-in water tank humidification 2. Stainless steel armored humidifier 3. Humidifier control mode: non-contact and other periodic pulse width adjustment, SSR (solid state relay) 4. Water level control device, humidifier anti-dry burning device, sediment collection device, liquid level observation window 5. Humidifier power: 12KW Humidification system Humidifier: 1. Fully automatic water supply device or button type electric automatic water replenishment 2. High and low temperature double water level electronic level switch to prevent malfunction 3. Water shortage and air burning over temperature protection + ultra-low water level protection + water supply overtime protection to ensure the safe operation of equipment 5.3 Refrigeration system Cooling method: air-cooling Refrigeration compressor: Germany Bitzer compressor with environmentally friendly refrigerant Refrigerant copper tube: inner spiral K-TYPE refrigerant copper tube Condenser: wave-shaped fin type air-cooled condenser Evaporator: Slope type FIN—TUBE evaporator Freezing element: Original imported solenoid valve, drying filter, etc. 5.4 Features The pipelines of the whole system are subjected to a 22kg leak detection test The heating and cooling system is completely independent The system can prevent high temperature and high pressure air flow back All refrigeration system action programs are completely controlled by the microcomputer controller       At Sinuo Testing Equipment Co., Limited, we offer state-of-the-art walk-in environmental chambers that cater to a wide range of testing needs, from temperature and humidity simulations to complex, customized environments. While we provide a variety of standard models, we understand that every client’s requirements are unique. That’s why we specialize in crafting bespoke solutions, tailored precisely to your specifications. Whether you're in aerospace, automotive, electronics, or other industries, our flexible designs ensure that your testing conditions are met with the highest accuracy and reliability.   Looking for something beyond the ordinary? Let’s discuss how we can create the perfect testing environment for your business. Contact us today to unlock custom solutions that drive your success!