The switch panel and the convex button connected with the key switch panel are characterized in that the button is connected to the panel through the arc connecting strips on both sides of the button into one body; the button, the connecting strip and the panel are preferably integrally molded, and the decorative sleeve is preferably arranged on the button. external. The arc-shaped connecting strip of the present invention has a certain elasticity due to its own thin strip shape, so when the local button is pressed and released again, the elastic action of the arc-shaped connecting strip will make it reset, and there is no need to be under the button. Set return spring. Meanwhile, this structure can be simply realized by integral injection molding, which greatly facilitates the manufacture and assembly.
Rated value: generally refers to the value that serves as a reference for switching characteristics and performance guarantees, such as rated current, rated voltage, etc., based on specific conditions (load type, current, voltage, frequency, etc.).
Operation mode (self-locking/unlocking): when the switch has a locking action after pressing the operating lever, it is called self-locking, and if there is no locking action, it is called unlocking.
Insulation resistance: refers to the resistance value between non-connected terminals, between each terminal and non-charged metal parts, and between each terminal and ground.
Withstand voltage: The threshold value at which the key switch manufacturer will not cause insulation damage after applying a high voltage to the specified measurement site for 1 minute.
Contact resistance: It indicates the resistance of the contact part of the contact, and generally indicates the resistance value of the conductor resistance including the spring and the terminal part.
Vibration resistance: When the mis-action vibration tact switch is applied, the vibration range that the contacts closed due to vibration will not be separated within the required time.
Impact resistance: Durable impact means that the key switch will not be damaged by the mechanical impact during transportation or installation, and the impact within the range that meets the operating characteristics.
Malfunction impact refers to the impact range that the contact closed due to impact does not separate within a specified time when the key switch is in use.
How to choose the keyswitch size
The size of the key switch determines the performance of the key switch. Many times we want to choose a better key switch to use, which will make our key switch use longer and not be troubled by replacing the key switch. If there is a problem with the switch, the damage of the key switch will bring us a lot of inconvenience.
Therefore, the choice of the size of the key switch is also what many people want, many people consider, a topic that many people must consider, a topic that can never be avoided, so how to choose the size of the key switch? This problem is actually a very simple problem for some professionals. If it is not very professional to face this problem, it will be a more complicated problem. The choice of the size of the key switch is mainly based on The use environment of the key switch is determined.
For example, the environment where your key switch is used is a relatively large living environment, then you can choose some relatively large key switches during the use of the key switch. If the use environment of the key switch is a relatively small environment, You can choose some smaller safety switches to use, which will be better. Only in this way can the use effect of the key switch and the matching effect of the environment be met.
