How to reach IP68? Smartphone airtight waterproof testing program

Cell phone waterproofing is a very useful feature, with this feature, it means that our beloved cell phone can have an extra layer of protection. But there are a lot of holes or gaps on the phone, such as the earpiece, speaker, charging holes, SIM card slot, power button, volume keys, etc., and even retained the headphone hole of the phone can do the highest level of IP68 waterproof, this is how to do it? And what makes cell phone waterproof technology costs remain high?In this article, we will reveal the principles and techniques of waterproofing your cell phone and smartphoneAirtightness and waterproof testing equipmentThe type and brand of the

First, the principle of cell phone waterproof

In fact, the principle of cell phone waterproofing is not so complicated, mainly by two methods:

• Structural waterproofing:This method involves plugging up areas where water can enter by reducing the number of body splices and adding physical barriers such as seals and waterproof adhesive strips. For example, a ring of waterproof silicone pad in the SIM card slot; the keys are usually added between the phone's interior with a layer of waterproof adhesive; the speaker and earpiece cavities and exterior, consisting of a layer of filter mesh, as well as a ring of waterproof silicone around the filter, which has a pore size smaller than the water molecule cluster, can prevent water from entering. This method is effective against general splashing and soaking, but leaks may still occur if the water pressure is too great or too long.
• Nano waterproof:This method is the use of nano-coating gap is very small, water molecules (H2O) can not penetrate, but condensed into water droplets rolled down or wait for evaporation, to coat some parts of the phone, you can have excellent oil and waterproof performance. For example, the charging hole because of its own dead-end structure and the phone does not communicate with the internal, so it has a natural advantage, just need to do a better drainage to prevent corrosion of the internal metal contacts can be. Although the headphone hole is also a dead-end structure, but the headphone hole is small and deep, so you need to apply a nano-hydrophobic coating inside the headphone hole. This method can effectively improve the corrosion resistance of the phone's internal components without affecting the appearance or functionality.

Second, the level of waterproof cell phone

There is a standard set of ratings for cell phone waterproofing, which is an international rating standard for dustproof and waterproofing of electrical appliances.The first number represents the dust protection class(0-6).The second number represents the waterproof rating(0-8).

For example, Samsung's S and Note series are usually IP68 rated, Apple's iPhone 8 and X are IP67, and the iPhone XS series has been upgraded to IP68 since then. Domestic phones such as Huawei's latest Mate and P series, Honor Magic3 Pro, Xiaomi Mi 11 Pro/11 Ultra, and One Plus 9 Pro are all IP68 rated.

There are also some phones that will claim to be waterproof, but without indicating the rating, and these can usually only be called splashproof.

III.cell phoneAirtightness and waterproof testing equipment

cell phoneAirtightness and waterproof testing equipmentIt is an instrument that can simulate different water pressure and time conditions to check whether the cell phone has waterproof function. It can determine whether there is air or water leakage in the cell phone by measuring the pressure difference, pressure change, flow change and so on. There are mainly the following types of cell phone airtight waterproof testing equipment:

Differential Pressure Airtightness Testing Equipment: This equipment utilizes different pressures applied inside and outside the test chamber, and then measures the pressure difference by means of a differential pressure sensor to determine whether there is a leak. This equipment has the advantages of high precision, high stability, compact structure, small size, etc. It is suitable for automation equipment integration and high-volume multi-channel high-speed testing.

Positive pressure airtightness testing equipment: This type of equipment utilizes a test chamber to apply a certain positive pressure, and then observes the pressure change through a pressure sensor to determine whether there is a leak. This equipment has the advantages of simple operation and low cost, and is suitable for general waterproof level testing.

Negative pressure air tightness testing equipment: This equipment utilizes the air pumped inside the test chamber to create a certain negative pressure, and then observes the pressure change through a pressure sensor to determine if there is a leak. This equipment has the advantage of being able to detect small leaks and is suitable for high waterproof level testing.

iv. concluding remarks and recommendations

cell phoneAirtightness and waterproof testing equipmentIt is an instrument that can simulate different water pressure and time conditions to check whether the phone has waterproof function.

Cell phone waterproofing is a practical and interesting feature, which can keep our cell phones from being damaged in case of accidents, and also allow us to take some beautiful pictures in the water. However, waterproofing for cell phones also has certain limitations and costs, and different waterproofing levels and technologies have different applicable scenarios and effects.

If you want to buy a waterproof phone, you need to choose the right model and brand according to your needs and budget.

If you want to test your phone's water resistance, you need to use professional airtight waterproof testing equipment for accurate measurement and evaluation. In this regard, we suggest you choose the following two brands:

• Imported waterproof leak detector choose ATEQ:ATEQ is an internationally recognized company with nearly 50 years of history. Its airtightness testing instruments are characterized by high precision, high stability and high reliability, and are widely used in various industries, making it a leader and benchmark in the field of airtightness testing.
• Domestic waterproof leak detector selection JCGK:JCGKIt is a domestic science and technology enterprise full of vigor and innovation. Its airtightness testing equipment is characterized by high efficiency, high intelligence and high flexibility, etc. It follows the market demand closely and provides customers with comprehensive sealing solutions, and is the leader and pioneer in the field of airtightness testing.