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Pressure Relief Devices and Cooking Appliances

A technology for pressure relief devices and cooking utensils, which is applied to cooking utensils, pressure cookers, kitchen utensils, etc., and can solve problems such as high power consumption, overflow of cooking cavity liquid, and adhesion of solenoid valves and safety valves.

Active Publication Date: 2022-03-22
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) During the working process of cooking utensils, the solenoid valve is charged for a long time and is controlled by the pressure relief command, that is, according to the temperature or pressure in the cooking cavity, the solenoid valve is controlled to maintain the pressure or release the pressure. This solution requires more complicated control The logic and control program, and the solenoid valve needs to be continuously charged every time the pressure is released, which may lead to problems such as large power consumption, complex logic control program, single pressure control method and poor reliability.
[0005] (2) Due to the pressure cooking process, the high temperature and high pressure environment may cause the liquid in the cooking cavity to overflow, and the overflow of the liquid may cause the solenoid valve and the safety valve to stick, which may cause the pressure of the cooking cavity to exceed the safety pressure or even explode. This seriously affects the reliability of the product, the safety of the user's personal property and user experience

Method used

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  • Pressure Relief Devices and Cooking Appliances
  • Pressure Relief Devices and Cooking Appliances
  • Pressure Relief Devices and Cooking Appliances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Such as Figure 1 to Figure 5 As shown, the pressure relief device according to an embodiment of the present invention is used for a cooking appliance. The pressure relief device is arranged in the upper cover of the cooking appliance, or the pressure relief device and the upper cover are integrally formed. The lid is fastened with the pot body to form a cooking cavity, and the pressure relief device includes: a first pressure relief assembly 10 and a second pressure relief assembly 20 .

[0073] Wherein, the first pressure relief assembly 10 is configured to perform a pressure relief process on the cooking cavity of the cooking appliance in response to a pressure relief instruction.

[0074] The second pressure relief assembly 20 specifically includes: a seat body 202 , a pressure relief element 204 and a temperature change element 206 .

[0075] Optionally, the seat body 202 has a pressure relief channel connected to the cooking cavity, and one end of the pressure re...

Embodiment 2

[0132] Image 6 A graphical representation of a cooking control scheme according to an embodiment of the present invention is shown.

[0133] Such as Image 6 As shown, taking an electric rice cooker as an example, the cooking control scheme proposed according to the present invention includes stages such as preheating, water absorption, heating, boiling, stewing and heat preservation, specifically:

[0134] (1) During the preheating stage, heat the temperature in the cooking chamber from 25°C to 50°C.

[0135] (2) In the water absorption stage, maintain the temperature in the cooking cavity at about 50°C, so that the material can absorb water at a constant temperature, thereby increasing the water absorption rate and water absorption capacity.

[0136] (3) In the heating stage, the temperature in the cooking cavity is heated from 50°C to 105°C.

[0137] (4) During the boiling phase, the first pressure relief component is not faulty, and when the processor determines that t...

Embodiment 3

[0139] Figure 7 A schematic diagram showing a cooking control scheme according to another embodiment of the present invention.

[0140] Such as Figure 7 As shown, taking an electric rice cooker as an example, the cooking control scheme proposed according to the present invention includes stages such as preheating, water absorption, heating, boiling, stewing and heat preservation, specifically:

[0141] (1) During the preheating stage, heat the temperature in the cooking chamber from 25°C to 50°C.

[0142] (2) In the water absorption stage, maintain the temperature in the cooking cavity at about 50°C, so that the material can absorb water at a constant temperature, thereby increasing the water absorption rate and water absorption capacity.

[0143] (3) In the heating stage, the temperature in the cooking cavity is heated from 50°C to 105°C.

[0144] (4) During the boiling stage, when the processor determines that the air pressure in the cooking cavity reaches P, it trigger...

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Abstract

The present invention provides a pressure relief device and a cooking appliance, wherein the pressure relief device includes: a first pressure relief assembly configured to perform pressure relief on a cooking cavity of the cooking appliance in response to a pressure relief instruction; The second pressure relief assembly, the second pressure relief assembly specifically includes: a seat body, the seat body has a pressure relief passage connected to the cooking cavity, and one end of the pressure relief passage forms a pressure relief port; a pressure relief member is movably arranged on the pressure relief On the pressure relief port at one end of the channel; a temperature-changing component is arranged corresponding to the pressure-relieving component, and the temperature-changing component can be deformed by heat to drive the pressure-releasing component to shift to open the pressure-relieving port. Through the technical solution of the present invention, it is not only possible to provide a micro-pressure environment for the cooking utensils to improve the cooking effect, but also to improve the safety of the cooking utensils and reduce potential safety hazards during the cooking process. The structure of the second pressure relief component is simple and stable, and no complicated Control program, easy to maintain.

Description

technical field [0001] The invention relates to the technical field of cooking utensils, in particular to a pressure relief device and a cooking utensil. Background technique [0002] As one of the commonly used cooking utensils, the electric rice cooker (pressure cooker), in order to improve the cooking effect, the micro-pressure electric cooker came into being. The micro-pressure rice cooker applies micro-pressure technology to the rice cooker to maintain the pressure range in the micro-pressure rice cooker at around 0.1KPa to 30KPa (relative to the standard atmospheric pressure). Moisture and heat can fully penetrate into the inside of the rice grains to cook delicious rice, that is to say, under the action of slight pressure, the rice will be cooked and thoroughly cooked, and the taste will be better. [0003] The existing pressure-regulating rice cooker usually adopts an active pressure relief method to control the pressure of the cooking cavity. The active pressure re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J36/38A47J27/09
CPCA47J36/38A47J27/09
Inventor 黄韦铭刘化勇邢胜华邝坚罗飞龙羊小亮吴良柳瞿月红郑昊周毅陈鹏
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD