Water dispenser

Abstract

The invention relates to a water dispenser. The water dispenser comprises a bucket, a cold water tank, a water outlet pipe and a hot water tank, wherein the upper end of the cold water tank is provided with a smart seat internally provided with a smart head, and the bucket is connected to the cold water tank through the smart seat; the lower portion of the cold water tank is connected to the upperend of the water outlet pipe; the lower portion of the water outlet pipe forks to form two branch pipes, namely the first branch pipe and the second branch pipe, and the first branch pipe is connected with a water outlet valve to form a cold water outlet; the second branch pipe is connected with the hot water tank to supply cold water to the hot water tank; the side wall of the hot water tank isconnected with a hot water outlet pipe; the second branch pipe is connected with the hot water tank through a hot water reflux prevention unit, the hot water reflux prevention unit is internally provided with a heating expansion element, the heating expansion element is connected with a valve plate, and the valve plate is opposite to a port of the second branch pipe; the heating expansion elementis heated to expand to drive the valve plate to move to the port of the second branch pipe, thereby blocking the port of the second branch pipe, so that the second branch pipe is disconnected with thehot water tank to avoid the situation that hot water flows back into the cold water tank.

Description

technical field [0001] The invention relates to a water dispenser. Background technique [0002] Existing as figure 2 In the water dispensers shown, the hot water in the hot water tank and the cold water in the cold water tank flow in series, which causes the water temperature in the hot water tank to drop rapidly, so that the thermal resistance has a high starting frequency and is in the working state for a long time, resulting in The power consumption of the hot water machine is relatively high; the invention patent with the patent number of 201310322821.2 provides a technical solution aimed at solving this problem, mainly by adding a warm water tank so that the water pressure caused by the temperature change of the hot water tank when heating The fluctuation drives the water flow between the hot water tank and the warm water tank to prevent heat from spreading to the cold water tank. However, the warm water tank is used as a buffer space, which not only makes the water d...

AI Technical Summary

Problems solved by technology

[0002] Existing as figure 2 In the water dispensers shown, the hot water in the hot water tank and the cold water in the cold water tank flow in series, which causes the water temperature in the hot water tank to drop rapidly, so that the thermal resistance has a high starting frequency and is in the working state for a long time, resulting in The power consumption of the hot water machine is relatively high; the invention patent with the patent number of 201310322821.2 provides a technical solution aimed at solving this problem, mainly by adding a warm water tank so that the water pressure caused by the temperature change of the hot water tank when heating The fluctuation drives the water flow between the hot water tank and the warm water tank to prevent heat from spreading to the cold water tank. However, the warm water tank is used as a buffer space, which not only makes the water dispenser take up more space as a whole, but also the warm water tank must have excellent thermal insulation performance to To prevent its own heat loss, and to a certain extent, the warm water tank is another cold water tank, and it is also difficult to avoid problems caused by the thermal resistance in the hot water tank working for a long time

Images