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Liquid heater and temperature control method

A technology of liquid heaters and heating devices, which is applied to cooking utensils, water boiling appliances, household appliances, etc. It can solve the problems of being susceptible to external interference, high cost of temperature detection components, and poor temperature control effect, so as to improve reliability. Sex and stability, and the effect of reducing the difficulty of the installation process

Pending Publication Date: 2019-08-23
GUANGZHOU JIGU ELECTRIC APPLIANCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to daily use, the outside of the bottom of the pot may be contaminated with dirt, or the surface of the probe may be covered with dust, etc., which will lead to inaccurate temperature detection or even malfunction. In some cases, the temperature control effect will not be good, and in severe cases, it may cause interference or accidents.
[0005] At the same time, a wireless signal transmission temperature detection element can also be installed on the body of the kettle to achieve the purpose of accurate temperature measurement. However, in this type of design, the two poles of the temperature sensor built into the body of the kettle still need to be connected to the circuit board before it can be used. The wireless signal is transmitted to the main board of the base, so it is also unable to overcome the defect that the kettle body cannot be washed
Moreover, the cost of such temperature detection components is high, the difficulty of circuit system structure design is increased, and it is vulnerable to external interference.

Method used

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  • Liquid heater and temperature control method
  • Liquid heater and temperature control method
  • Liquid heater and temperature control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] A liquid heater such as Figure 1-3 As shown, includes: jug body and base.

[0084] The kettle body includes: a bottom wall 110, a side wall 120 and a first temperature detection assembly, the bottom wall 110 and the side wall 120 surround and form an accommodating chamber for the liquid to be heated, and the first temperature detection assembly is arranged on the On the bottom wall 110; as Figure 2-3 As shown, the first temperature detection assembly includes a temperature sensing probe 131, an insulator 132, a first signal wire 133 and a second signal wire 134, and the temperature sensing probe 131 is fixed to the bottom wall by fixing the insulator 132 The outer surface is in direct contact, and the two ends of the temperature sensing probe 131 are respectively provided with a first signal wire 133 and a second signal wire 134, and the first signal wire 133 and the second signal wire 134 are separated by the insulator 132, and the The first signal wire 133 and the...

Embodiment 2

[0096] A liquid heater, basically similar to the liquid heater in Embodiment 1, the difference is that in this embodiment, the first temperature detection component is designed as follows: the installation groove is made of conductive material, and the first signal The output end 135 is a conductive sheet or a conductive block made of conductive material, and the second signal wire is connected to the installation groove, so that the edge part of the installation groove exposed on the bottom of the kettle body is the second signal output The contact surface of the end, the structure of the first temperature detection component is as follows Figure 4 shown.

Embodiment 3

[0098] A liquid heater such as Figure 5 As shown, it is basically similar to the liquid heater in Embodiment 1, except that in this embodiment, the first signal input device 241 and the second signal input device 242 are both located on the same side of the water injection channel 137 .

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Abstract

The invention relates to a liquid heater and a temperature control method, and belongs to the technical field of household appliances. The liquid heater comprises a kettle and a base, wherein the kettle comprises a bottom wall, a side wall and a first temperature testing assembly; the first temperature testing assembly comprises a temperature sensing probe and an insulator, the temperature sensingprobe realizes direct or indirect contact with the outer surface of the bottom wall through the fixing of the insulator, and two ends of the temperature testing probe are provided with a first signallead and a second signal lead insulated through the insulator; and the base comprises a heating device, a control main board and a second temperature testing assembly, the second temperature testingassembly comprises a first signal input device and a second signal input device arranged at the matched positions of a first signal output end and a second signal output end, the first signal input device and the second signal input device are connected with the control main board, and the heating device is connected with the control main board. For the liquid heater, the accurate temperature detecting can be realized, the kettle body also can be washed, the use is convenient, and the temperature detecting accuracy is high.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a liquid heater and a temperature control method. Background technique [0002] At present, for liquid heaters, temperature detection elements are usually used to sense the temperature of the liquid to be heated and fed back to the control system to control the opening or power of the heating device to achieve the purpose of controlling the liquid heating process. [0003] Conventional liquid heaters include integrated and detachable types, etc., wherein the integrated liquid heater is a fixed assembly of the kettle body and the heating device, and is used as a whole when used. This type of liquid heater can directly set the temperature detection element inside the pot body to directly detect the temperature of the liquid, which has the effect of accurate temperature detection. However, due to the existence of the circuit system, this type of liquid heater needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J27/21
CPCA47J27/21008A47J27/21083A47J27/21166
Inventor 田秘吴年生
Owner GUANGZHOU JIGU ELECTRIC APPLIANCE TECH CO LTD