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Knob switch of food mixer

A technology of knob switch and mixer, which is applied in food science, food preparation, household utensils, etc., and can solve problems such as operator safety hazards, spontaneous start-up, and misoperation

Inactive Publication Date: 2008-09-17
SHENZHEN H&T INTELLIGENT CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, food mixers usually work through the single-chip software control system to obtain power, but the reliability of the software is still a difficult problem in today's technology. For example, in the standby state, the software If the anti-interference ability is not high, it is very likely to start spontaneously or malfunction, etc.
If the operator happens to be cleaning the mixer, if the mixer is started spontaneously at this time, it will bring safety hazards to the operator

Method used

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  • Knob switch of food mixer
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Experimental program
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Embodiment Construction

[0008] Please refer to figure 1 and figure 2 , the present invention provides a rotary switch for a food mixer, which includes a rotary knob 10 and a micro switch 20 .

[0009] Wherein, the knob 10 is roughly circular, and a depression (not labeled in the figure) is formed on the circumference thereof.

[0010] The microswitch 20 is located on one side of the knob 10, and it includes a pressing ball 22 on the side of the depression close to the knob 10 and three pins CO pin and NO pin on the other side away from the knob 10. , NC pin, CO pin is connected to the working power of the system, NO pin is connected to the single-chip software control system of the system, and NC pin is connected to the power supply of the hardware protection system.

[0011] In the standby state, when the knob 10 is rotated so that its depression is aligned with the pressure ball 22 of the micro switch 20, the pressure ball 22 of the micro switch 20 enters the depression of the knob 10. At this t...

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Abstract

The invention relates to a rotary switch of a food mixer, which comprises a knob and a microswitch; wherein, the microswitch comprises a first leading pin connected with a system working power supply, a second leading pin connected with an MCU software control system and a third leading pin connected with a power supply of a hardware protection system. The rotary switch of a food mixer is characterized in that the microswitch can be or not be triggered by the knob; when the microswitch is triggered by the knob, the first leading pin of the microswitch is communicated with the second leading pin so as to control the mixer via the MCU software control system; while the microswitch is not triggered by the knob, the first leading pin of the microswitch is communicated with the third leading pin so as to protect the electric appliance via the hardware protection system. The rotary switch of a food mixer has the advantage that the microswitch is triggered or not triggered by the knob so as to enable the software not to work in the standby condition, thus only when the controlled electric appliance needs control by the software, the MCU software control system is permitted to obtain the power for work.

Description

technical field [0001] The invention relates to the structure of a food mixer, in particular to a rotary switch of the food mixer. Background technique [0002] At present, food mixers usually work by obtaining power from the single-chip microcomputer software control system. However, the reliability of the software is still a difficult problem in today's technology. Wait. If the operator is just cleaning the mixer, if the mixer is started spontaneously at this time, it will bring potential safety hazards to the operator. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rotary switch for a food mixer, which has a simple structure, safe and reliable operation, and meets the requirements of safety regulations. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a rotary switch of a food mixer, including a rotary knob and a micro switc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/025A47J43/04A47J43/07A23L5/30
Inventor 姜西辉刘建伟首召兵
Owner SHENZHEN H&T INTELLIGENT CONTROL