Constant-temperature and instant-heating type shower device

Abstract

The invention provides a constant-temperature and instant-heating type shower device which comprises an outer shell, a power circuit, a temperature setting switching circuit, an automatic power control circuit and heating circuits. The output end of the power circuit is connected with the input end of the temperature setting switching circuit, and the output end of the temperature setting switching circuit is connected with the input end of the automatic power control circuit. The heating circuits comprise the first heating circuit and the second heating circuit. The first heating circuit comprises a normally-open contact of a first relay and a first heating component. The second heating circuit comprises a second heating component and a first bidirectional silicon controlled rectifier which are connected in series. The constant-temperature and instant-heating type shower device further comprises a first temperature measurement device and a water flow switch. The water flow switch and a coil of the first relay are connected to the power circuit, the first temperature measurement device is arranged at the second heating component, and the output end of the automatic power control circuit is connected with the control pole of the first bidirectional silicon controlled rectifier. The constant-temperature and instant-heating type shower device can guarantee that the output water temperature will not change along with change of the water flow and high temperature will not be generated in the process of restarting after short-time halt, and the device is convenient to use.

Description

technical field [0001] The invention relates to a shower, in particular to a constant-temperature instant-heating shower. Background technique [0002] Traditional showers use the size of the water flow to adjust the outlet water temperature. This adjustment method not only responds slowly, but also the water temperature is unstable. Users need to manually adjust the water temperature to meet their own needs, which causes waste of water and equipment. damage. [0003] Existing instant showers use electronic heating components to quickly heat the flowing water, and can control the water temperature, flow rate, power, etc. through the circuit, so that the water temperature reaches a temperature suitable for human body bathing. However, this kind of shower generally adopts electronic circuits, which will bring hidden dangers to safety because the electronic components are easily damaged; at the same time, this kind of shower adopts a cylindrical centralized heating method, and...

AI Technical Summary

Problems solved by technology

However, this kind of shower generally adopts electronic circuits, which will bring hidden dangers to safety because the electronic components are easily damaged; at the same time, this kind of shower adopts a cylindrical centralized heating method, and this heating control circuit only works in two modes: on and off. state, the heating tube only has two states of full power heating and deactivation, coupled with the inertia of temperature, or the existence of thermal inertia, the opening or closing of the heater is always earlier or later than the actual operating temperature, which results in a large temperature difference of the outlet water, And when it is turned on after a short-term stop, it will generate high temperature, which will cause harm to the user

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