Water level and temperature sensor for water heaters

Abstract

The invention discloses a water level and temperature sensor for water heaters, which comprises an outer tube, a temperature sensor, a floater-guiding body, fixing nuts and a silicon rubber shim, wherein the temperature sensor is mounted on the lowest end of the outer tube, a magnetically controlled switch and signal wires are mounted in the outer tube, an upper limit snap spring, a lower limit snap spring and the floater-guiding body are sleeved on the outer tube, and the lower limit snap spring is mounted under the upper limit snap spring. The floater-guiding body is mounted between the lower limit snap spring and the upper limit snap spring, the magnetically controlled switch is arranged between the lower limit snap spring and the upper limit snap spring and close to the upper limit snap spring, and the fixing nuts and the silicon rubber shim are mounted on the periphery of the upper end of the outer tube. The water level and temperature sensor is integrated with a water level detection function and a water temperature detection function, and has the advantages of simple structure, high sensitivity, stable performance and long service life.

Description

technical field [0001] The invention relates to a sensor, in particular to a water level and temperature sensor for a water heater, which is mainly used as a device for detecting water temperature and water level on a storage type electric water heater. Background technique [0002] Most of the sensors on the market are separated from the liquid level sensor and the temperature sensor. There are some sensors that can detect the liquid level and liquid temperature at the same time, but the structure is complex and the price is relatively expensive, and the practicability is not strong. It is difficult to find a sensor that can control both temperature and liquid level on a storage-type electric water heater, so most of the storage-type electric water heaters on the market today do not have a liquid level detection system, and many storage-type electric water heaters Also can be heated under the situation that does not have water in the tank, makes water heater exist potential...

AI Technical Summary

Problems solved by technology

[0002] Most of the sensors on the market today are separate liquid level sensors and temperature sensors. There are some sensors that can detect liquid level and liquid temperature at the same time, but the structure is complex, the price is relatively expensive, and the practicability is not strong.

It is difficult to find a sensor that can control both temperature and liquid level on a storage-type electric water heater, so most of the storage-type electric water heaters on the market today do not have a liquid level detection system, and many storage-type electric water heaters It will also be heated when there is no water in the tank, so that the water heater has a safety hazard

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