Manufacture/sales of waterproof wire harnesses for automobiles|battery cars|batteries|electronic equipment|outdoor equipment

Specializing in the production/sales of automotive | battery car | battery | electronic equipment | outdoor equipment waterproof wiring harness, products are mainly used in LED street lamps, LED driving power supply, LED display, lighthouse, cruise ship, industrial equipment, communication equipment, detection equipment, etc., but also widely used in stage lights, aquarium, bathroom, switching power supply, mechanical and electrical equipment, etc. Need waterproof connection.

1、 what is waterproof wiring harness?: waterproof wiring harness is waterproof connecting wire, also known as waterproof plug, waterproof connector is a waterproof plug, and can provide safe and reliable electrical and signal connection for products. It is widely used around us! For example, led street lamps, led driving power supplies, led display screens, lighthouses, cruise ships, industrial equipment, communication equipment, testing equipment, etc., all require waterproof wiring harnesses and connectors. There are many brands and types of waterproof plugs on the market, including traditional waterproof plugs for home life, such as triangle plugs, which can be called plugs, but generally they are not waterproof. So how is the waterproof plug judged? The measurement of waterproof is IP, and the higher level of waterproof is IPX8. The main evaluation standard for the waterproof performance of waterproof connectors is based on the IP waterproof grade standard. The waterproof performance of the waterproof connector mainly depends on the second digit after IPXX. The digit X is from 0 to 6, and the higher level is 6, which is the dustproof mark. The second digit is from 0 to 8, and the higher level is 8. Therefore, the higher waterproof level of the waterproof connector is IPX8. Sealing principle: up to 5 sealing rings and sealing rings are used to pre-tighten the seal with pressure. This kind of seal will not lose the pre-tightening force when the connector expands with heat and contracts with cold, and ensure the waterproof effect for a long time. Water molecules can not penetrate under ordinary pressure. (It can work for a long time at a depth of less than 2m).

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What are the wiring harness waterproofing requirements for 2、 waterproof wiring harnesses? : Waterproofing of harness is a necessary part of harness work. Once the wiring harness waterproofing fails, it is easy to cause abnormal operation of various electrical systems, affect the comfort of the vehicle, and even cause great safety risks. Waterproof test shall be carried out after the design is completed, so as to check the reliability of waterproof design. Next, I will briefly introduce the definition and test method of waterproof grade of automotive wiring harness. Our common expression is IPXX or something. IP and the following two digits have a certain meaning. The IP (INGRESS PROTECTION) protection rating system was drafted by the IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) to classify electrical appliances according to their dust-proof and moisture-proof characteristics. The IP protection level is composed of two numbers. The first number indicates the level of the electrical appliance to prevent dust and foreign objects from entering (the foreign objects referred to here include tools, and human fingers are not allowed to touch the live parts inside the electrical appliance to avoid electric shock). The second number indicates the degree of sealing of the electrical appliance to prevent moisture and water immersion. The larger the number, the higher the protection level. The protection level is usually expressed by IP followed by two numbers, and the number is used to specify the level of protection. The number of digits indicates the extent to which the equipment is resistant to fine dust, or the degree to which people are protected from harm in a sealed environment. Represents the level of protection against the ingress of solid foreign matter, more specifically 6; the second digit indicates the degree to which the equipment is waterproof. Stands for the level of preventing water ingress, let alone 8. For example, the protection grade of the motor is IP65. Degree of protection against contact with electrical equipment and foreign objects (number) Degree of protection against water for electrical equipment (second number)

IP dustproof grade (X) 0: No protection 1: Prevent large solid intrusion 2: Prevent medium solid intrusion 3: Prevent small solid intrusion 4: Prevent solid intrusion of objects larger than 1mm 5: Prevent harmful dust accumulation 6: Completely prevent dust intrusion Because the general wiring harness still has high requirements for dustproof. Our default is 6, which is why we often use IP6X to indicate the waterproof level of the harness in the supplier's report or drawings. The IP waterproof rating range waterproof test includes the second characteristic digit from 1 to 8, that is, the protection rating code is IPX1 to IPX8. No protection No special protection 1 Prevent water ingress Prevent vertical drops of water 2 Prevent water ingress when tilted 15 degrees When electrical equipment is tilted 15 degrees, It is still possible to prevent the dripping of water 3, to prevent the intrusion of sprayed water, to prevent rainwater, Or the water sprayed in the vertical direction with the included angle less than 50 degrees 4 prevents the splashing water from intruding and prevents the splashing water from all directions from intruding 5 prevents the water with big waves from intruding and prevents the water with big waves or the water rapidly sprayed from the water spray hole from intruding 6 prevents the water with big waves from intruding and the electrical equipment from intruding into the water under the condition of certain time or water pressure, It can still ensure the normal operation of the equipment. 7 It can prevent the water from intruding into the submerged water of the electrical equipment for a long time. Under the condition of certain water pressure, it can still ensure the normal operation of the equipment. 8 It can prevent the influence of sinking.

IP protection level test (1) IPX 1 Method name: Vertical drip test Test equipment: Drip test device Sample placement: Place the sample on a rotating sample table at 1 R/min according to the normal working position of the sample. The distance from the top of the sample to the drip port is not more than 200mm Test condition: the drip volume is 1.0 ± 0.5mm/min Duration: 10 min IPX 2 Method name: drip test with an inclination of 15 ° Test equipment: drip test device Sample placement: one surface of the sample is at an angle of 15 ° to the vertical, The distance from the top of the sample to the drip opening shall not be more than 200mm. After testing one side, change the other side for four times. Test conditions: dripping amount of 3.0 ± 0.5 mm/min Duration: 4 × 2.5 min (10 min in total) ⑶ IPX 3 Method name: water drenching test Test method: a. Pendulum type water drenching test test equipment: pendulum type water drenching and splashing test device Sample placement: select a pendulum tube with an appropriate radius to make the height of the sample table at the diameter of the pendulum tube, place the sample on the sample table to make the distance from its top to the sample water spout not more than 200mm, and the sample table shall not rotate. Test conditions: the water flow is calculated according to the number of spray holes of the pendulum tube, and each hole is 0.07 L/min. When spraying water, the spray water from the spray holes within the 60 ° arc section on both sides of the midpoint of the pendulum tube sprays to the sample. The sample to be tested is placed in the center of the semicircle of the pendulum tube. The pendulum tube swings 60 ° along both sides of the vertical line, totaling 120 °. Test time for each swing (2 × 120 °) is about 4s: continuous watering for 10 minb. Sprinkler type water drenching test Test equipment: Hand-held water drenching and splashing test device Sample placement: Make the parallel distance from the top of the test to the water spout of the hand-held sprinkler between 300 mm and 500 mm Test conditions: Install a baffle with a counterweight during the test, and the water flow is 10 L/min Test time: Calculate according to the surface area of the shell of the sample to be tested. 1 min per square meter (excluding installation area), minimum 5 min IPX 4 Method Name: Splash Test Test Method: a. The test equipment and sample placement of the pendulum tube splash test: the same as the above IPX 3 item a; the test conditions: the same as the above IPX 3 item a except for the following conditions; the water spray area is the water sprayed to the sample from the spray hole in the 90 ° arc section on both sides of the pendulum tube midpoint. The sample to be tested is placed in the center of the semicircle of the pendulum tube. The pendulum tube swings 180 degrees on both sides of the vertical line, totaling about 360 degrees. Test time of approx. 12 s per swing (2 × 360 °): same as IPX 3 a above (i.e. 10 min). b． Sprinkler type water splash test test equipment and sample placement: the same as the above IPX 3 item B; test conditions: remove the equipment and install a baffle with a counterweight, the rest are the same as the above IPX 3 item B; Test time: the same as the above IPX 3 item B, that is, calculated according to the surface area of the tested sample shell. 1 min per square meter (excluding the installation area) at least 5 min IPX 5 Method name: water spray test Test equipment: the inner diameter of the water spray port of the nozzle is 6.3 mm Test conditions: the distance between the test sample and the water spray port is 2.5 m to 3 m. Water flow is 12.5 L/min (750 L/H) Test time: calculated according to the surface area of the tested sample shell, 1 min per square meter (excluding the installation area), at least 3 min IPX 6 Method name: strong water spray test; Test equipment: the inner diameter of the water spout of the nozzle is 12.5 mm. Test conditions: the distance between the test sample and the water spout is 2.5 m ~ 3 m, and the water flow is 100 L/min (6000 L/H). Test time: calculated according to the surface area of the shell of the tested sample. 1 min per square meter (excluding installation area) Minimum 3 min IPX 7 Method name: Short immersion test Test equipment and test conditions: Immersion tank. The dimensions shall be such that when the specimen is placed in the immersion tank, the distance from the bottom of the specimen to the surface of the water is at least 1 m. The distance from the top of the specimen to the water surface shall be at least 0.15 m. Test time: 30 min. IPX 8 Method name: continuous diving test; test equipment, test conditions and test time: to be agreed upon by the supplier and purchaser, and its severity shall be higher than that of IPX7.

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3、 some pictures of waterproof wiring harness products for automobiles | battery cars | batteries | electronic equipment | outdoor equipment produced/sold by our company (pictures are for reference only):

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6、 how to buy or know about car | battery car | battery | electronic equipment | outdoor equipment waterproof wiring harness products? ：