New Energy Electric Vehicle PACK Pack Fastener Industry Solutions

New Energy Electric Vehicle PACK Pack Fastener Industry Solutions

What is Battery PACK? How to choose suppliers for Battery PACK Long Screw and Battery PACK Long Bolt?

Battery PACK generally refers to packaging, encapsulation, and assembly; battery PACK generally refers to a combination of batteries because lithium batteries are composed of a specific voltage and capacity through the series and parallel connection of a single lithium battery, plus the protection plate, can be charged and discharged assembly process. Or two batteries in series, according to customer requirements, to form a particular shape; we call it PACK. New energy electric vehicles are revolutionizing our current and future travel modes. Ju Xin Fasteners fastening system, for the new electric vehicle industry from the battery PACK program in the parts fasteners, to help customers make the right decision from the beginning so that the battery PACK products now and in the future. PACK products are competitive now and in the future. In general, an electric vehicle power battery PACK consists of the following components:

1) Power Battery Module System

If the battery PACK is compared to a human body, the module is the "heart," responsible for storing and releasing energy to power the car. The lithium battery module comprises several to hundreds of battery cells through parallel and series connections of multiple modules; in addition to the institutional design part, the battery management system and thermal management system can be composed of a complete battery pack system.

2) Structure System

The structural system mainly consists of a battery PACK cover, tray, various metal brackets, end plates, and bolts; commonly used fasteners are high-strength hexagonal flange bolts, sealed waterproof blind rivet nuts, nylon rivets JX-R3035B, JX-R3045B, JX-R5065, M6, M8, M10stainless steel screws and nuts, stainless steel rivets, stainless steel rivets, waterproof rivets, metal lock nut Fasteners can be regarded as the "skeleton" of the battery PACK, playing the role of support, resistance to mechanical shock, mechanical vibration, and environmental protection (waterproof and dustproof).

3）Electrical system

The electrical system mainly consists of a high-voltage jumper or high-voltage wiring harness, a low-voltage wiring harness, and relays. The high-voltage wiring harness can be regarded as the "arteries and vessels" of the battery PACK, which continuously conveys the power of the heart of the power battery system to the various required components. In contrast, the low-voltage wiring harness is the "neural network" of the battery PACK, which transmits real-time detection and control signals. Control signals in real-time.

4) Thermal management system

There are four main types of thermal management systems: air-cooled, water-cooled, liquid-cooled, and phase-change materials. Take a water-cooled system as an example; the thermal management system mainly consists of a cooling plate, cooling water pipe, heat-insulating pad, and heat-conducting pad. The thermal management system is equivalent to installing an air conditioner to the battery PACK. Some people will ask why the battery needs a thermal management system. It is straightforward because the process of battery charging and discharging is the process of a chemical reaction; the chemical reaction will release a lot of heat, and the need to take away the heat so that the battery is in a reasonable operating temperature range, to improve the life and reliability of the battery.

5) BMS

BMS: Battery management system The Battery management system can be regarded as the "brain" of the battery. It is mainly composed of CMU and BMU.

CMU: The cell monitor Unit is responsible for measuring the voltage, current, and temperature of the battery and other parameters, equalization, and other functions. When the CMU measures these data, the data will be transmitted to the BMU through the battery "neural network" mentioned earlier.

BMU: Battery management unit. It is responsible for evaluating the data transmitted by the CMU. If the data is abnormal, it will protect the battery by issuing a request to reduce the current or cut off the charging and discharging paths to prevent the battery from exceeding the permissible conditions of use. At the same time, it also manages the battery's power and temperature. The previously designed control strategy determines the parameters and states that need to be warned, sends the warning to the whole vehicle controller, and finally conveys it to the driver.

1. High-strength straight high-strength long screw: full-threaded long screw, high-strength 10.9 grade straight long screw hexagonal flange bolts, mainly used in bus battery PACK and new energy vehicles, which is characterized by the use of a unique process of heat treatment, straightening treatment, high verticality requirements, while strengthening the dehydrogenation straightening, closed surface treatment plating process, the two ends of the flat head to increase the tightening of the non-biting preventive; Supply specifications Qi M4/M5/M6X85, M6X95, M6X150, M6X160/M8/M10/M12/M14/M16M18/M20/M22/M24/M27/M30/M33/M36 Strength grade: 4.8 grade, 8.8 grade, 10.9 grade; length can be customized; Surface treatment: Battery PACK long screw blackening Battery PACK long screw color zinc, Battery PACK long screw high salt spray blue and white zinc, Battery PACK long screw natural color, high strength Battery PACK long screw, we also have experience and application of actual cases.

2, Double stacked washers, PACK battery assembly locking good helper：anti-loosening washers also known as anti-loosening washers, self-locking washers, self-locking washers, DIN25201 anti-loosening washers, stainless steel double stacked self-locking anti-loosening washers and so on.

Way of working: the new gasket is composed of two pieces; its unique embedded structure changes the traditional gasket mainly through friction to achieve the way of anti-loosening, the use of tension between the two gaskets to complete the double effect of anti-loosening and tightening, the use of materials and surface treatment.

All Japan imported SUS304.316.630 (A2.A4) stainless steel or carbon steel SK5.SK7 and customer-specified European special steel quality [(EN 1.7182 (27MnCrB5) EN 1.5528 (22MnB5) (1.4462, DIN X2Gr-NiMoN2253)] equivalent alloy steel. All carbon steel products are strictly hardened to ensure that the product characteristics meet the requirements. Surface treatments are usually color-coated with zinc-magnesium and Dacromet. The neutral salt spray test proved to withstand at least 720 hours. All stainless steel products can also be hardened (HV350-550) on request to enhance and improve mechanical properties. Double stacked washers, PACK battery assembly locking good aid;

3. Extended 10.9-grade high-strength hexagonal flange bolts: general bolt diameter and length, the length of the bolt outside the national standard size, the length of the bolt required by the actual design and application of the main battery PACK, Juxin Fasteners uses multi-station extended cold heading parts molding machine production, one-time molding; to meet the extended bolts, extra-long bolts, extra-long bolts, at the same time The strength can also be high strength and medium strength level; at the same time, we have specific control over the verticality of the long screws; PACK battery assembly process is a critical step in the production of lithium battery packs, the importance of which is becoming more and more evident with the continuous expansion of the electric vehicle market. Currently, power batteries for automobiles consist of the following systems: battery modules, battery management systems, thermal management systems, and electrical and mechanical systems. The new energy electric vehicle industry is characterized by ever-increasing reliability, speed, and on-time-to-market performance.

Please get in touch with us if you want high-quality strength 10.9-grade carbon steel hexagon flange bolts or technical support for structural design. Thanks.Email:adelajonly@gmail.com

Website: https://www.juxinfasteners.com