Quick heating type electric water heater

Abstract

The invention discloses an instant electric water heater, including a base and a cover. The base is provided with a heating device and a computer control panel. The invention is characterized in that the heating device is provided with a water inlet and a water outlet. The water inlet is provided with an inflow temperature sensor and a water flow sensor. The water outlet is provided with an outflow temperature sensor. The base is provided with an inlet branch and an outlet branch. The inlet branch, the water flow sensor, the water outlet and the outlet branch are respectively connected by an insulated flexible pipe. The invention has the advantage that because the water inlet of the heating device is provided with the inflow temperature sensor and the water flow sensor, and the water outlet of the heating device is provided with the outflow temperature sensor, the sensing time of time temperature is shortened greatly and the precision of temperature control is improved. Moreover, because the inlet branch, the water flow sensor, the water outlet and the outlet branch are respectively connected by the insulated flexible pipe, the heating part and the water-resistance anti-electric wall are separated completely without creepage, which makes the use secure .

Description

technical field [0001] The invention relates to an electric water heater, in particular to an instant electric water heater. Background technique [0002] The instant electric water heater is an energy-saving product, which has the advantages of small size, convenient installation and instant heating. At present, the thermoelectric water heaters on the market can be divided into glass electric heating film heating, armored electric heating tube heating and bare wire heating according to different heating methods. Although glass electric heating film heating realizes the separation of water and electricity, glass products are fragile and unstable in heating. Therefore, it is not an ideal power carrying carrier; armored electric heating tube heating is the most widely used heating method at present, but the armored electric heating tube prolongs the time of hot water due to thermal inertia, which will make the water temperature in the heating body of the water heater When the...

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Problems solved by technology

At present, the thermoelectric water heaters on the market can be divided into glass electric heating film heating, armored electric heating tube heating and bare wire heating according to different heating methods. Although glass electric heating film heating realizes the separation of water and electricity, glass products are fragile and unstable in heating. Therefore, it is not an ideal power-carrying carrier; armored electric heating tube heating is the most widely used heating method at present, but the armored electric heating tube prolongs the time of hot water due to thermal inertia, which will make the water temperature in the heating body of the water heater When the heating is stopped, it rises to too high, and the armored electric heating tube is eroded by water flow and high temperature, the armored layer is easily damaged and leakage occurs, and the electric heating tube is placed in the metal water tank, causing the current to flow directly through the user; while the bare wire Heating technology is a brand-new safe heating technology. The feature of this technology is that the heating wire is directly placed in the water for heating, and then a slender water pipe is connected to the water inlet and outlet of the heating body, which is equivalent to adding two water pipes to the water inlet and outlet of the heating body. The huge water resistance makes the leakage current of the water inlet and outlet much smaller than the safe current that the human body can pass through, meeting the requirements of structure anti-electricity

The bare wire heating technology currently on the market basically adopts the structural design of the integration of the heating body where the heating wire is located and the slender water pipe at the water inlet and outlet as the anti-electric wall, as shown in Figure (1). This structure only relies on two irregular The water sealing rubber pad 100 is used as an anti-leakage guarantee. When the water sealing rubber pad 100 has internal water leakage due to factors such as long time and high temperature, the length of the slender water pipe at the water inlet and outlet will become shorter or more seriously cause it to lose the power of the electric wall. protection, so that the current flows directly through the user

In addition, the general instant electric water heater is a non-constant temperature outlet type with manual power adjustment. Since the user needs to manually adjust the power, it will be turned off when the water pressure is unstable, the inlet water temperature is unstable, or the input voltage is unstable. Lead to the change of outlet water temperature, bring great inconvenience to the user

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