How to Choose the Right Touch Switch
Release time：2019-08-23 Clicks： Click
When using the light touch switch, we need to make a choice. What problems should we determine to make the right choice? Specific methods we will give you a detailed introduction below.
It is believed that many product development engineers, or product structure engineers, will be involved in the selection of light touch switches for new products. Especially in the product quality, cost, process to find a balance, I believe I will give you some help. Xiaobian, as a person of light touch switch industry for many years, today helps us to figure out how to choose the suitable light touch switch.
1. Light touch switch positioning
Components, whether military, automotive, industrial or C-terminal consumer electronics, product positioning determines the selection of process industry standards. For example, car grade and C-terminal consumer electronics are far from each other, and a single TS16949 certification has left behind a large number of small and medium-sized light touch switch manufacturers. The positioning of C-end products is totally impossible to enter the automotive supply chain. The reason is very simple. The requirements of automotive grade are too high and the cost is too far apart.
2. Light touch switch requirements
Since the advent of touch switch, users have increasingly demanded it. From the original 3000-5000 life of large switch of household appliances to the later 30000-50000 life, to the current mainstream mobile phone industry requires 100000-500000 life, the data show that the life of light switch has increased 100 times in the past 20 years. Life growth is probably the most intuitive and basic requirement of many parameters; hand feel, strength and travel have become several important parameters after life; and now dust and waterproof, rosin-proof, high temperature resistance, moisture-proof, anti-oxidation, anti-drop and other requirements.
3. Touch switch structure
Structural engineers need to consider the lightly touching switch structure, such as length, width, height, pressing stroke, even thermal expansion and contraction coefficient, and then go deep into the coordination, wear, assembly and maintenance convenience of structural parts.
4. Cost of touch switch
Almost every product will entangle cost before design and small batch production. As Millet executives have said, the configuration of mobile phones will be greatly improved for every 15% increase in cost, but when added, it is found that there is still a lot of room for improvement. Most of the time, the choice of light touch switch can only give priority to the most important and necessary parameters, such as product must be waterproof, then the direct abandonment of non-waterproof; used in automotive TS16949 system must be certified; environmental protection lead-free products will inevitably process at higher temperatures, the selection of high temperature resistant PPA material is necessary, so it is tangled down. Of course, there are a lot fewer models. In addition, the process will also affect the cost of light touch switch, such as laser welding process is much more than glue bonding process. If you are interested, you can get a deeper understanding. At present, domestic laser welding process is in its infancy, few enterprises really master the technology, while Panasonic and ALPS in Japan are basically mature.
5. Switch Production System
In fact, the above mentioned TS16949, the old version of the car system certification for IATF16949, this system completely kills the streets of the standard ISO 9001. In addition to considering whether the product meets the basic requirements of type selection, stability is a problem that must be considered. Many outsourcing purchases require suppliers according to the so-called bad rate. In fact, if there is no good production system guarantee, even if we get samples, even small batches of tests passed, it is difficult to maintain the consistency of large quantities of products. Especially in the component industry, after high temperature reflow welding, product attenuation and strength feel will change, and the advantages of production system and R&D experience are reflected at this time.
6. On-the-spot inspection of factories
Why do you mention visiting the switch factory on the spot? Let's take a look at the demon. The lowest cost products in the beauty industry are not Rouge powder and lipstick. They are actually filters and beauty software. What about touching the switch? It can also be "Beautiful Beauty", starting with the fake foreign investors introduced on the website, to the pictures of factories, PS of products, falsification of certificates, reuse of waste recycled materials and so on. Once a big customer came to a professional factory and sighed that this is the professional light switch. Before that, it was totally manual workshop. The so-called sales were all low-priced, and the packaging on the Internet was totally nonsense.
7. Touch Switch Brand
Excellent brands have their corresponding brand culture, which involves the brand's business philosophy, company values and so on. Values correct brand direction will be correct, only thinking about short-term investment, only thinking about making fast money enterprises can not have long-term brand planning. Feedback to the light touch switch industry is the attitude of the enterprise, the speed of after-sales reaction, and the ability to solve the problem when the product has post-sale problems. Every now and then they shout slogans of brand, either cheaters or rookies who don't know the depth of brand. A good brand needs to go through a long period of persistence and hard work from scratch, while negative word-of-mouth is like a thousand miles of levee to ant nest. But brand prices are often high, so this is also a trade-off issue. At present, the light-touch switch industry has been relatively mature, and the quality of several major brands in China has caught up with it. Taking the leading light-touch switch enterprises in China as an example, not only can they produce ultra-thin products of the same quality of laser film series, but also the invention and innovation in the technological structure have partly surpassed those of Japanese enterprises.