What is a touch switch?
Also known as key switch, it first appeared in Japan and is called sensitive switch. When in use, press the switch to the operating direction to meet the operating force. When the pressure is released, the switch is closed, and its internal structure is made on and off through the stress change of the metal elastic sheet. The touch switch consists of an insert, a base, an elastic sheet, a button and a cover plate, wherein a polyimide film is added to the elastic sheet of the waterproof touch switch.
Touch switch has the advantages of small contact resistance, accurate operating force error and diversified specifications, and has been widely used in electronic equipment and white goods, such as audio-visual products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical devices, money detectors, laser pen buttons and so on. Because of the environmental conditions of the touch switch (elasticity/environmental temperature and humidity and electrical performance under the pressure of less than 2 times), large equipment and high-load buttons are directly replaced by conductive rubber or pot switch hardware shrapnel, such as medical equipment and TV remote control.
Dimensions and specifications of touch switch
Among them, 2x3 and 2x4 touch switches are also called Beibei four-legged patch touch switches. His height is generally 3.5 mm.
The 3x3 touch switch has two main heights, which are 0.8 and 1.5 respectively. It has three functions of environmental protection, high temperature resistance and waterproof, and only uses the patch touch switch.
The dimensions and heights of 3x4 touch switches are 1.8, 2.5 and 3.0, and there are several types of touch switches, such as environmental protection type, double elastic sheet type and two-foot patch type.
3x6 touch switches are available in three sizes and heights: 0.8, 3.5 and 3.8. It belongs to the lateral pressure series touch switch, which has two feet and four feet.
The dimensions and heights of 4x4 touch switches are: 1.5, 1.7, 2.0, 2.3, 2.5, 3.0, 3.5, 3.7, 4.3, 6. Usually the four-legged patch touches the button.
4.5x4.5 can be divided into three types: plug-in, patch and edge triangle:
The dimensions and heights of plug-in 4.5x4.5 touch switches are mainly: 3.8 and 5, which are generally four-pin plug-in touch switches.
Patch 4.5x4.5 Touch switches mainly have dimensions and heights of 3.2, 3.8, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0 and 7.0. Generally, there are only four feet, also called four-foot patch switch.
4.5x4.5 The dimensions and heights of touch switches are mainly: 3.8, 4.3, 4.8, 5.0, 5.5, 7.0 and 8.0, among which the height triangle touch switch buttons are also called edge triangle touch switches.
6x6 is divided into patch and plug-in touch switch buttons:
The touch switch size and height of 6x6 patch mainly include: 4.3, 4.5, 5, 5.5, 6, 7, 8, 9.5, 10, 12, 13 eleven height patch key switches, mainly four-legged buttons.
The dimensions and heights of touch switches of 6x6 plug-in are: 4.5, 5.5, 6.5, 7, 8, 9, 10,12, 13, 14,14.
6.2x6.2 Touch switches are divided into patches and plug-ins:
6.2x6.2 The size and height of the patch touch switch mainly include: 2.5, 2.7, 3. 1, 3.7, 5. 1, and five kinds of four-pin patch touch key switches, generally four-pin, especially five-pin patch.
The dimensions and heights of the touch switches of 6.2x6.2 plug-ins mainly include: 2.5, 2.7, 3. 1, and three kinds of touch switch buttons of four-pin plug-ins are generally four-pin plug-ins.
Secondly, there are 10x 10 and 12x 12, in which the heights are 4.3, 5.0, 5.5, 6, 7, 8, 9, 9.5 and12 respectively. Touch switches 10x 10 and 12x 12 belong to large touch key switches, and there are few users.
Because touch switches are widely used, they may be used in very large places, such as public squares and large dance halls. It may also be on very small electronic products, such as digital cameras, mobile phones, massagers and other small digital products. Therefore, in order to adapt to different use occasions, the volume specifications of touch switches are divided into many categories. The traditional touch switch still has some security risks, but now the fifth generation touch switch has been developed, and the new touch switch uses thin film as the contact.