Temperature controllers are widely used in various electrical products such as air conditioners and refrigerators. The quality of temperature controllers directly impacts the safety, performance, and lifespan of the entire machine, making them a crucial component. There are numerous types of temperature controllers available in the market, ranging from traditional knob-types to common button-types, from internet-connected controllers to smart controllers, from no screen to large LCD screens, with various types of communication methods.
A touch-screen temperature controller is a series of automatic control components that generate physical deformations within the switch due to temperature changes in the working environment, thus producing specific effects, leading to connections or disconnections. It is also known as a touch-screen temperature switch or temperature protector.
The working principle of a touch-screen temperature controller is to automatically sample and instantly monitor the ambient temperature through a temperature sensor. When the ambient temperature exceeds the set control value, the control circuit starts, allowing the control differential to be set. If the temperature continues to rise and reaches the set over-limit alarm point, the over-limit alarm function is initiated. If the controlled temperature cannot be effectively managed, the trip function can be used to stop the equipment from continuing to operate to prevent damage.
The first electric touch-screen temperature controller on earth was born in 1883 when Warren Johnson invented a device capable of controlling the indoor temperature of large buildings, giving birth to the temperature control industry. Over a hundred years later, touch-screen temperature controllers have evolved into fully smart controllers that combine technological and fashionable elements with remote control capabilities. Entering the 21st century, touch-screen temperature controller technology has rapidly developed, with product upgrades occurring at an ever-increasing pace, bringing more advanced temperature control products into our production and daily lives.
LCD digital temperature controllers are designed for controlling heating, cooling, and year-round air conditioning in commercial, industrial, and residential projects. Typical applications include controlling fan coil units, air-conditioning terminals, and heating and cooling equipment. Compared to the first-generation mechanical models, the digital button interface of these temperature controllers is sleeker and visually appealing. The button settings are also more advanced and convenient than dials. The button functions include the power switch, mode switch, fan speed selector, and temperature setting.
These can be considered an upgraded version of the LCD digital type, akin to the upgrade from button-operated phones to touchscreen phones. Both share similar application fields and working principles, but the latter offers a stronger visual impact and a better user experience through its touch buttons. LCD touch-screen temperature controllers add clock and timing function buttons on top of the previous generation.
Internet-connected touch-screen temperature controllers are used to connect water machines and fan coil units and serve as the central controller for HVAC systems. This controller offers a packaged solution for residential and light commercial users. It can control and monitor all HVAC system operating modes, such as cooling, heating, dehumidifying, floor heating, fan speed, and room temperature settings. It also features remote control capabilities through smartphones and WeChat applications.
