Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of rubber sheath for circuit connection of energy storage converter in China, also supports customized service. Please feel free to buy high quality rubber sheath for circuit connection of energy storage converter for sale here from our factory.
Rubber sheath for circuit connection of energy storage converter
1. Product Overview
The rubber sheath, specifically designed for the circuit connection parts of energy storage converters, serves as a crucial safeguard for wires, cables, and connectors. Its multifaceted functions, including insulation, protection, and sealing, are fundamental to ensuring the secure and stable operation of the circuit, thus guaranteeing the seamless functioning of the energy storage converter.
2. Product Structure
- Outer Rubber Layer: Constructed from high - quality rubber materials renowned for their outstanding insulation, exceptional aging resistance, remarkable high and low - temperature tolerance, and robust mechanical strength, such as Ethylene - Propylene - Diene Monomer (EPDM) rubber and silicone rubber. This layer acts as a formidable barrier, shielding the interior components from external threats like moisture, dust, oil, and chemical substances that could potentially damage the circuit. Additionally, it can endure mechanical stress such as friction, extrusion, and collision, effectively safeguarding the internal lines.
- Inner Liner or Insulating Layer: Composed of soft and flexible insulating materials, typically Polytetrafluoroethylene (PTFE) and Polyethylene (PE). This layer is in direct contact with the wires, cables, or connectors, providing an additional layer of insulation. By doing so, it not only minimizes the risk of current leakage but also cushions the pressure exerted by the outer rubber layer on the internal lines, preventing damage caused by excessive extrusion.
- Special Structure Design: Some rubber sheaths feature innovative structural designs. For instance, snap - fasteners, slots, or tie - down straps are incorporated to facilitate the secure fixation of the rubber sheath at the circuit connection points. This ensures that the sheath remains firmly in place during operation, without any risk of loosening or displacement. Moreover, sealing lips or sealing grooves are added to enhance the sealing performance, effectively preventing moisture and impurities from infiltrating.
3. Product Functions
- Insulation Protection: By creating a physical barrier between the circuit connection parts and the external environment, the rubber sheath effectively prevents electric shock hazards and guards against circuit short - circuits. This is essential for maintaining the electrical safety of the energy storage converter.
- Waterproof and Dustproof: Boasting excellent sealing capabilities, the rubber sheath can effectively block pollutants such as moisture and dust from entering the circuit connection areas. This helps to avoid issues like electrical performance degradation and corrosion resulting from moisture accumulation or dust infiltration, ultimately extending the service life of the equipment.
- Electromagnetic Interference Resistance: Certain rubber sheath materials are engineered with specific electromagnetic shielding properties. These properties enable the sheath to mitigate the impact of external electromagnetic interference on the transmission of circuit signals. Simultaneously, it curbs the electromagnetic radiation generated by the circuit itself, thereby enhancing the electromagnetic compatibility of the energy storage converter.
- Mechanical Protection: The rubber sheath acts as a shield against mechanical damage, such as abrasion, cutting, and extrusion. By safeguarding the integrity of the wires, cables, and connectors, it helps prevent circuit failures triggered by mechanical factors.
- Buffering and Vibration Damping: During the operation of the energy storage converter, vibrations and impacts are inevitable. The rubber sheath plays a vital role in buffering and dampening these vibrations, reducing their impact on the circuit connection and ensuring the stability of the connection.
4. Product Application Scenarios
- Battery Connection Lines: When it comes to the cables connecting energy storage batteries and energy storage converters, which usually carry large - current electricity, the rubber sheath is indispensable. It ensures the insulation and protection of these cables, shielding them from potential damage caused by battery leakage, external environmental factors, and more. This, in turn, guarantees the safe and efficient transmission of electric energy.
- Signal Transmission Lines: For the signal cables that link various control modules and sensors within the energy storage converter, the rubber sheath is crucial for preventing signal interference. By maintaining the accuracy and stability of signal transmission, it enables the energy storage converter to perform normal control and monitoring functions.
- Power Input and Output Lines: In the case of input and output lines connected to the power grid or other power sources, the rubber sheath provides reliable insulation and protection under high - voltage and high - current conditions. This ensures a secure connection between the energy storage converter and the external power source.
| Performance category | Specific properties | Value |
| Physical properties | Appearance | Colorless to milky white to light amber translucent solid |
| Odor | Non-toxic, odorless to slightly paraffinic | |
| Density | \(0.86 - 0.87g/cm^3\) | |
| Mooney viscosity | 70 ML (the 70 in EPDM70 usually represents the Mooney viscosity value) | |
| Glass transition temperature | -60~ -50℃ | |
| Brittle temperature | -77~ -69℃ | |
| Flash point | 360℃ | |
| Autoignition point | 370℃ | |
| Air permeability | \(100cm^2/s\) | |
| Surface tension | 25 - 35mN/m | |
| Diffusion coefficient (water) | \(4.5×10^{-8}\) | |
| Minimum rebound temperature | -30℃ | |
| Resilience | 50 - 80% | |
| Specific heat capacity | \(2.09 - 2.64kJ/(kg·K)\) | |
| Thermal conductivity | \(0.26 - 0.38W/(m·K)\) | |
| Heat transfer coefficient | \(1.7×10^6W/(m^2·K)\) | |
| Volume expansion coefficient | \((7.5 - 8.8)×10^{-4}C^{-1}\) | |
| Linear expansion coefficient | \((2.3 - 2.5)×10^{-4}C^{-1}\) | |
| Mechanical properties | Tensile strength | Due to different formulas and processing technology, it varies, generally between 7 - 15MPa |
| Tear elongation | 300% - 600% | |
| Tear strength | 10 - 20kN/m | |
| Shore hardness | 70A (corresponding to EPDM70) | |
| Chemical resistance | Ozone resistance | Under the conditions of ozone concentration of \(100×10^{-6}\) and stretching of 30%, it can last for more than 150 hours without cracking |
| Weather resistance | Can be used in sunny, humid and cold natural environments for a long time, and no cracks will be seen after being exposed to the sun for 3 years | |
| Water resistance | Hydrophobicity, no obvious change in appearance after being placed in 230℃ superheated steam for 100 hours | |
| Superheated water resistance | Using dithiodimorpholine as the vulcanization system, after being immersed in 125℃ superheated water for 15 months, the mechanical properties change very little, and the volume expansion rate is only 0.3% | |
| Acid and alkali resistance | Good resistance to most acids and alkalis | |
| Oxidant resistance | Resistant to common oxidants | |
| Solvent resistance | Soluble in aromatic hydrocarbons, aliphatic hydrocarbons, chloroform, carbon tetrachloride, cyclohexane, heptane, benzene and other solvents; insoluble in ketones, alcohols, esters, ethers and other solvents; poor stability in aliphatic and aromatic solvents such as gasoline, benzene, xylene and mineral oil | |
| Electrical properties | Volume resistivity (20℃) | \(10^{16}Ω·cm\) |
| DC dielectric strength (20℃) | 35 - 45MV/m | |
| Dielectric constant (20℃, 1kHz) | 2.5 - 3.5 |
5. FAQ
Question: What is the sealing principle of the rubber sheath?
Answer: The rubber sheath capitalizes on the high elasticity inherent in rubber. During the installation process, through stretching, compression, or other similar techniques, it conforms closely to the surface of the object it is protecting. This creates a sealed enclosure that effectively keeps out external moisture, dust, oil, and other impurities, achieving a reliable sealing effect. For example, when wrapping a cable, the inner diameter of the rubber sheath is intentionally made slightly smaller than the outer diameter of the cable. Once installed, the rubber exerts radial pressure, thereby sealing the connection.
Question: What are the advantages of the rubber sheath compared with sheaths of other materials?
Answer: In comparison to metal sheaths, the rubber sheath offers the advantages of being lightweight, cost - effective, and highly flexible. These characteristics make it easy to install and bend, without the risk of causing hard damage to the protected object. When contrasted with plastic sheaths, the rubber sheath exhibits superior weather resistance and aging resistance. It can maintain stable performance even in harsh environments, and its sealing and insulation properties are far more excellent, enabling it to adapt to a wider range of complex working conditions.
Question: In which equipment components is the rubber sheath mainly applied in the marine engineering field?
Answer: In the marine engineering domain, the rubber sheath finds extensive application in critical parts. These include the periphery of the observation windows of submersibles, the hydraulic system pipe joints of underwater robots, the bolt holes at the connection between offshore wind turbine towers and the foundation, and the connection parts of the reverse osmosis membrane modules of seawater desalination equipment. It serves to protect these key components from seawater erosion and leakage, thereby ensuring the safe and stable operation of the equipment.
Question: What factors affect the insulation performance of the rubber sheath?
Answer: The insulation performance of the rubber sheath is primarily influenced by three key factors: the inherent properties of the material itself, the thickness of the rubber, and the operational environment. Different rubber materials exhibit varying insulation capabilities; for example, silicone rubber is known for its relatively outstanding insulation performance. Generally, the thicker the rubber layer, the better the insulation performance. However, harsh environmental conditions such as high temperature, humidity, and strong acid - base environments can cause the rubber to age and corrode, thereby diminishing its insulation properties.
Question: What special requirements are there for the materials of rubber sheaths used in medical equipment?
Answer: Rubber sheaths used in medical equipment must possess excellent biocompatibility to ensure that they do not cause any adverse reactions with human tissues. Silicone rubber, for example, is a commonly used material in the medical field due to its biocompatible nature. Additionally, these materials must meet strict hygiene standards and be able to withstand disinfection treatments to guarantee safety and reliability within the medical environment.
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