Electric appliance for preparing beverage

Abstract

The invention provides an electric appliance for preparing beverage, comprising a containing cavity, a heating device, a control valve and a discharge passage, wherein the containing cavity is provided with a first passage and at least one exhaust passage commonly used for receiving and discharging liquid for preparing the beverage, the heating device is connected with the containing cavity, the control valve is connected with a first passage, and the discharge passage is connected with the control valve in work; the control valve comprises a first valve element and a second valve element, andwhen the first valve element is offset in a discharge position, the second valve element can be controlled to be opened all the time, so as to communicate the first passage with the discharge passage; when the first valve element is in a receiving position, the second valve element is in an opening position, and the first passage is conducted to the outside; and when the first valve element is offset in the receiving position and the steam pressure in the containing cavity is greater than preset closing force of the second valve element, the second valve element closes the first passage. According to the electric appliance, fluid passage is rapidly switched by a simple control valve, and receiving and discharge of liquid for preparing the beverage are realized by one passage, and therefore, the electric appliance is suitable for brewing one cup or multiple cupd of beverage.

Description

technical field [0001] The invention relates to an electrical appliance for preparing beverages. Background technique [0002] Beverages extracted by pressurization are loved by most people because of their excellent aroma. Known beverage preparation machines with a pressurized extraction function usually adopt a mechanical pressurization system (such as a mechanical air pump or a mechanical liquid pump) or a steam pressurization system for pressurization, although the mechanical pressurization system can Provides a relatively stable extraction pressure, but because of its relatively expensive components, relatively complex structure and control system, it is easy to cause high manufacturing costs; while the steam pressurized system is relatively low in cost, but there are differences in temperature and brewing pressure. Defects that need to be resolved, such as insufficient stability, time-consuming assembly and detection of multiple connection ports, etc. And the existin...

AI Technical Summary

Problems solved by technology

Known beverage preparation machines with a pressurized extraction function usually adopt a mechanical pressurization system (such as a mechanical air pump or a mechanical liquid pump) or a steam pressurization system for pressurization, although the mechanical pressurization system can Provides a relatively stable extraction pressure, but because of its relatively expensive components, relatively complex structure and control system, it is easy to cause high manufacturing costs; while the steam pressurized system is relatively low in cost, but there are differences in temperature and brewing pressure. Defects that need to be resolved, such as insufficient stability, time-consuming assembly detection of multiple connection ports, etc.

And the existing electrical equipment for preparing beverages is convenient for users to use, and many of them have the function of brewing a single cup or multiple cups of beverages. In order to realize this function, pumps and flowmeters are usually used in combination with electronic control units to control, thus causing relatively large manufacturing costs. cost

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