Heating body for instantaneous heating type water dispenser

Abstract

The invention discloses a heating body for an instantaneous heatomg type water dispenser. The heating body comprises a metal substrate electric heating film 1, a thermistor 2, a flow channel plate 3, cooling fins 4 and the like. The heating body is characterized in that reinforcement ribs are machined on a metal substrate of the electric heating film; a flow channel is machined on the flow channel plate; the reinforcement ribs on the metal substrate of the electric heating film and the flow channel on the flow channel plate form an S-shaped cavity flow channel after assembly, the cross section of the flow channel is in two shapes, one shape is formed by the flow channel of the flow channel plate and the flat plate part of the electric heating film and is similar to a semicircle, the sectional area is 10-15 mm<2>, the other shape is formed by the flow channel of the flow channel plate and the reinforcement ribs of the electric heating film, the flow channel interval is 1-2 mm, the sectional area is 5-10 mm<2>, the water volume of the heating body is smaller than 30 mL, and the ratio of the water volume of the heating body to power is smaller than 15 mL / KW. The heating body for the instantaneous heating type water dispenser has the advantages that the reinforcement ribs are creatively arranged on the metal substrate of the electric heating film, the deformation problem of the electric heating film in the machining and using process is effectively solved, and therefore the temperature and flow controllability is effectively improved, and the optimal performance of the instantaneous heating type water dispenser can be achieved.

Description

technical field [0001] The invention relates to a heating body of an instant water dispenser. Background technique [0002] At present, there are three main types of electrothermal film instant heaters in use on the market: silicone runner heaters, stainless steel heaters without runners, and single-channel stainless steel heaters. The silicone runner heating body adopts the silicone runner to press on the electric heating film to seal the flow channel. The disadvantage of this heating body is that the seal is formed by the compression of the silicone plate, and it is easy to age and leak when heated for a long time; in addition, if the water is heated during the heating process Vaporization produces a certain pressure, which will easily spray steam and water around the sealed silicone and electric heating film, so as to damage the whole machine; the non-flow channel stainless steel heating body is mainly used for self-welling water boilers, which can only produce boiled wat...

AI Technical Summary

Problems solved by technology

The silicone runner heating body adopts the silicone runner to press on the electric heating film to seal the flow channel. The disadvantage of this heating body is that the seal is formed by the compression of the silicone plate, and it is easy to age and leak when heated for a long time; in addition, if the water is heated during the heating process Vaporization produces a certain pressure, which will easily spray steam and water around the sealed silicone and electric heating film, so as to damage the whole machine; the non-flow channel stainless steel heating body is mainly used for self-welling water boilers, which can only produce boiled water, and cannot adjust the temperature for heating. Due to the large amount of water stored inside, it takes a long time to wait for the water to come out after starting up; the single-channel heating body is formed by a flat electric heating film and a flow channel plate, and the electric heating film of this heating body will be deformed, resulting in a large gap between the flow channels , so that the string of water causes the outlet water temperature to be out of control

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