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Range hood oil cup oil quantity detection device

A range hood oil and detection device technology, which is applied in the fields of oil fume removal, household heating, lighting and heating equipment, etc., can solve the problem of inaccurate measurement of detection probes, achieve inaccurate measurement avoidance, high-precision measurement, and expand applications range effect

Active Publication Date: 2018-01-30
山东九创家电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a device for detecting the amount of oil in the oil cup of the range hood, which can realize the non-contact intelligent detection of the oil in the oil cup, avoid the problem of inaccurate measurement caused by the contamination of the detection probe by oil, and realize real-time and high-precision oil cup oil level measurement

Method used

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  • Range hood oil cup oil quantity detection device
  • Range hood oil cup oil quantity detection device
  • Range hood oil cup oil quantity detection device

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A device for detecting the amount of oil in the oil cup of a range hood, such as figure 1 As shown, the oil detection device includes: an ultrasonic probe 1, an ultrasonic signal detection module 2 and a main control unit 3 connected in sequence;

[0050]Ultrasonic probe 1 is used to transmit ultrasonic signals to the oil cup and detect ultrasonic echo signals generated on the medium layer between the oil and the air in the oil cup;

[0051] The ultrasonic signal detection module 2 is used to calculate the time difference between the moment of receiving the ultrasonic echo signal and the moment of transmitting the ultrasonic signal;

[0052] The main control unit 3 is used to calculate the oil level in the oil cup according to the time difference and the preset equation.

[0053] In the embodiment of the present invention, the solution of this embodiment is a real-time and high-precision oil detection system for the oil cup of the range hood based on ultrasonic liquid ...

Embodiment 2

[0057] In this embodiment, on the basis of the first embodiment, the installation method of the ultrasonic probe 1 is further limited.

[0058] Optionally, the installation method of the ultrasonic probe 1 includes: being fixed at the bottom outside the oil cup 4 or at a predetermined height above the oil cup 4 .

[0059] Option 1. Ultrasonic probe under-mounted installation method

[0060] In the embodiment of the present invention, such as image 3 As shown, it is the overall schematic diagram when the ultrasonic probe 1 is installed under the installation mode, that is, when the ultrasonic probe 1 is fixed on the bottom outside the oil cup 4 . The embodiment scheme in which the ultrasonic probe 1 is fixed on the bottom of the outer side of the oil cup 4 does not require the material of the oil cup 4, no matter whether the oil cup 4 is made of metal or plastic, it will not affect the measurement of the oil volume of the oil cup 4 , and this embodiment solves the problem of...

Embodiment 3

[0075] In this embodiment, on the basis of the second embodiment, the measurement principles of the two installation methods of the ultrasonic probe 1 are further introduced.

[0076] For option 1, the installation method of the ultrasonic probe under the

[0077] In the embodiment of the present invention, such as image 3 As shown, the ultrasonic probe 1 is a piezoelectric sensor as an example for description. When the piezoelectric sensor is fixed on the bottom of the outer side of the oil cup 4, the piezoelectric sensor generates a pulse from the bottom of the oil cup 4, the pulse passes through the bottom shell of the oil cup, passes through the liquid in the oil cup until it reaches the liquid surface, and on the liquid surface (liquid to air interface) creates an echo. The echo triggers the ultrasonic probe 1 again, so that the ultrasonic probe 1 generates a signal and transmits it back to the ultrasonic signal detection module 2. The ultrasonic signal detection modul...

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Abstract

The embodiment of the invention discloses a range hood oil cup oil quantity detection device which comprises an ultrasonic probe, an ultrasonic signal detection module and a main control unit which are sequentially connected with one another; the ultrasonic probe is used for transmitting an ultrasonic signal to an oil cup and detecting an ultrasonic echo signal which is generated on a dielectric layer between oil liquid and air in the oil cup; the ultrasonic signal detection module is used for calculating a time difference between a moment of receiving the ultrasonic echo signal and a moment of transmitting the ultrasonic signal; the main control unit is used for calculating a height of the oil liquid in the oil cup according to the time difference and a preset equation. The embodiment ofthe invention discloses a range hood. According to the technical scheme of the embodiment of the invention, non-contact type intelligent oil cup oil quantity detection is realized, the problem that adetection probe is polluted by oil contamination to cause inaccurate measurement is solved, and real-time oil cup oil quantity measurement with high accuracy is realized.

Description

technical field [0001] The embodiment of the invention relates to the design technology of cooking equipment, in particular to a device for detecting the amount of oil in an oil cup of a range hood. Background technique [0002] At present, there are mainly the following methods for measuring the amount of oil in the oil cup of range hoods on the market: [0003] 1. The oil cup with a visual window can judge the amount of oil in the oil cup by regularly observing the window. This method is simple in design and has no intelligence. After the first use, the clarity of the window decreases and the user experience effect is poor. [0004] 2. With regular oil cup cleaning function reminder, the machine automatically calculates the function time of the range hood, and then converts it into the calculation of the oil volume of the oil cup. This control technology process has no closed loop, and the oil volume detection is vague, real-time and accurate. Difference. [0005] 3. El...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 朱泽春马鹏飞陈震
Owner 山东九创家电有限公司
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