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Method and apparatus for detecting and controlling liquid boiling

A liquid and heating device technology, applied in beverage preparation devices, temperature control, general control systems, etc., can solve problems such as potential safety hazards, power outages, and affecting the control accuracy of thermostats, and achieve the effect of convenient cleaning

Inactive Publication Date: 2008-11-19
黄瑞中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that it is difficult to cut off the power when the temperature of the liquid rises to the boiling temperature. In practical applications, it often occurs: either the liquid is not boiled and the power is turned off to stop heating, or the liquid is already boiling and the power is continued to be heated. The reasons are as follows:
[0004] 1. Factors such as the sensitivity of the temperature sensing element, the thermal resistance between the temperature sensing element and the heated liquid, the manufacturing error of the electrical component, and the installation position of the thermostat all affect the control accuracy of the thermostat;
[0005] 2. The boiling temperature of the liquid is not a fixed value, it changes with the change of impurity content in the liquid and atmospheric pressure and other factors
However, this method cannot realize automatic control, that is, it cannot be unattended when the liquid is heated, so there are certain potential safety hazards

Method used

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  • Method and apparatus for detecting and controlling liquid boiling
  • Method and apparatus for detecting and controlling liquid boiling
  • Method and apparatus for detecting and controlling liquid boiling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Combining figure 1 and figure 2 As shown, an electromagnetic induction coil (7) and an electric circuit board (2) are arranged inside the base (6), and the electric circuit board (2) is provided with filter circuits and other circuits that can filter out disturbing sounds such as noise. The side wall of (6) is provided with start switch (5), stop switch (33) and microphone (1), is provided with hob panel (8) above electromagnetic induction coil (7), places on panel (8) The cup body (9) made of metal material is provided with a cup cover (15) at the opening of the cup body (9). The cup cover (15) is provided with a sounder body (10), a reed (11) and a cover The sounder (29) of (12), the body (10) is provided with an air flow channel (14), the cover (12) is provided with an exhaust hole (13), and the bottom of the base (6) is provided with a base plate (3), The bottom of the base plate (3) is provided with a rubber pad (28), and the inside of the base (6) is...

Embodiment 2

[0031] Embodiment two: combine image 3 and Figure 4 As shown, the electromagnetic induction coil (16) is set under the water dispenser faucet (21), the hob panel (17) is set above the electromagnetic induction coil (16), and the cup body made of metal material is placed on the panel (17) (18), the opening of the cup body (18) is provided with a cup cover (19), and the cup cover (19) is provided with a sounder (20); Sounding principle), it comprises air inlet (30), swirl chamber (32) and air outlet (31); Microphone (22) is set on the water dispenser housing (24) above sounder (20), and water dispenser An electric circuit board (25) is arranged in the casing (24), and a start switch (23) and a stop switch (34) are arranged on the water dispenser casing (24).

[0032] When this embodiment is in use, the user first opens the cup cover (19), then opens the water tap (21), puts the water in the water dispenser bucket (26) into the cup body (18) (you can also receive water from o...

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PUM

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Abstract

Disclosed are a method and a device to detect and control boiling liquid, comprising a sound generator, a sound receiver and an electric circuit board; the sound generator is arranged on a container for holding liquid; when the liquid is heated to boiling temperature, the generated steam enables the sound generator to make a sound; when the sound receiver receives the voice signal, the voice signal is converted into an electrical signal, and the power supply of an electric heater is cut off through the electric circuit board. Compared with the prior art, the device of the invention has the advantages that when the liquid is heated, the liquid temperature can rise to the boiling temperature; after the liquid is boiled, the power supply of the electric heater is automatically disconnected and fives a voice alarm, so the device is safe in use; besides, as the containing for holding liquid has no electrical component, the container is easy to be cleaned.

Description

Technical field [0001] The invention relates to the technical field of liquid heating control, in particular to a method and device for detecting and controlling liquid boiling. Background technique [0002] Known techniques for controlling liquid boiling are: [0003] The first technology: use a thermostat to control the boiling temperature of the liquid, that is, set a thermostat on the vessel containing the liquid. When the temperature of the liquid rises to the temperature controlled by the thermostat, the thermostat will take off and disconnect the main circuit. . The advantages of this technology are: simple structure, low cost, and many applications. For example: the hot tank for heating drinking water in a water dispenser usually adopts this technology, and the "hot water" used to heat drinking water in a thermos bottle also has products using this technology. The disadvantage of this technology is that it is difficult to cut off the power when the temperature of ...

Claims

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Application Information

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IPC IPC(8): G05B9/02G05D23/00A47J31/00
Inventor 黄瑞中
Owner 黄瑞中
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