ZhiJian Hardware

Tact switches are widely used in current electronic equipment because of their small surface area and light weight, such as electrical products, security equipment, small toys, computer machines, fitness equipment, and electronic products. , controllers, medical devices, etc. However, there will be some defects in the application of the tact switch. For example, if the tact switch has been used for a long time, the internal metal shrapnel is also relatively damaged. Then I will give you a detailed interpretation of the types and performance analysis of the metal shrapnel inside the tact switch.

Analysis of the types of metal shrapnel inside the tact switch

At first, there are ring, ring, triangle and oval types for the most common tact switch internal metal shrapnel. Of course, there is no advantage in the above, and it is very general in the fields of actual operation touch, stroke arrangement, sound, etc. Therefore, the shrapnel used in the tact switch at this stage are generally oval or annular.

The annular metal shrapnel of the tact switch belongs to the least type of shrapnel, and it is also a metal shrapnel that is widely used in the tact switch. Weaker than all metal shrapnel. For tact switches, it must be much better in appearance than others, the only thing missing is that the sound is not as clear as a cross. However, at this stage, many high-end household appliances stipulate that the sound is not clear, but it reflects the speed and tactile feel. The annular dome has also achieved these two aspects. Therefore, at this stage, the more commonly used metal shrapnel is used inside the tact switch. for the ring.

As everyone knows, the cross-shaped metal shrapnel belongs to the function key shrapnel with a large stroke arrangement, but this type of cross-shaped shrapnel is generally rarely used in the tact switch. Due to the large stroke arrangement, it is touched in actual operation. It takes a long time, and it can also show that the speed of expression is relatively slow. Although the cross-shaped metal shrapnel has a very large advantage in terms of clear sound, and at the same time, it has the clearest sound among all metal shrapnel, but cloud words are only used at the request of the special outpatient clinic. Cross-shaped metal shrapnel.

Analysis of the performance of the metal shrapnel inside the tact switch

In the application of the tact switch, the actual operation is different, and the internal metal shrapnel can obtain different actual operation tactile sensations, but the key to the service life is the internal shrapnel. Little do we know that at this stage, the relative metal shrapnel is also divided into imported and domestic ones. Generally speaking, the imported metal shrapnel is better than the domestic metal shrapnel. Now, the tact switches used for most high-end products are all selected. High-quality metal shrapnel, the specific characteristics of this type of metal shrapnel are that the service life is longer, the actual operation touch is stronger, the resilience working ability and its high temperature and cold resistance performance are better.

Therefore, the metal shrapnel can be said to be one of the basic prefabricated components in the key core area of the tact switch. It controls the plug-in and power-off of the power switch, and the key function of the power switch is to cut off the amount of overcurrent. . In the early days, the metal shrapnel was used to control the amount of current of all the power switches based on the shrapnel before the tact switch was used and cut off. Without this shrapnel, all the power switches are equivalent to becoming an empty shell, and all the functions to be completed cannot be used.

Analysis of the service life of the metal shrapnel of the tact switch

The tact switch is used as a tact switch for electronic devices. The basic principle is that the power switch can be connected by pressing the key switch lightly. When the hand is released, the power switch is disconnected, and its internal structure is mainly supported by metal shrapnel. Forces to move to realize this series of effects. Among them, the only metal shrapnel in work is the metal shrapnel inside. The independent service life of this shrapnel can generally reach 100,000 times. However, with the frequent application of power switches, the application of tact switches at this stage can only meet the requirements of 10,000 times. Second-rate.