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Weight sensor circuit and cooking tool

A weight sensor and circuit technology, applied in the field of weight sensors, can solve the problems of manually increasing resistance, low production efficiency, time-consuming and laborious, etc., and achieve the effect of simplifying the operation of zero adjustment and improving production efficiency

Active Publication Date: 2016-06-01
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
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Problems solved by technology

[0003] However, when the output signal of the load cell is not within the adjustable range of the resistance, you can only rework, manually increase the resistance, or directly replace the load cell
In mass production, the output signal of the load cell has a high probability of not being within the normal range. At present, after the problem is found during the test, it is taken out from the production line, and the maintenance personnel are specially arranged to change the resistance and rework. The production efficiency is low. Time-consuming

Method used

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  • Weight sensor circuit and cooking tool
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  • Weight sensor circuit and cooking tool

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Embodiment Construction

[0037] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0039] figure 1 A schematic block diagram of a weight sensor circuit according to a first embodiment of the present invention is shown.

[0040] Such as figure 1 As shown, the weight sensor circuit ...

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Abstract

The invention discloses a weight sensor circuit and a cooking tool, comprising a gravity sensor module and a zeroing circuit. The weight sensor module has a first output terminal and a second output terminal; the first output terminal and the second output terminal of the weight sensor are correspondingly connected to the two input terminals of a signal amplification circuit; the signal amplification circuit is used for performing amplification processing on the voltage difference between a first output terminal and a second output terminal; the zeroing circuit comprises a plurality of resistors; the first terminal of each resistor in the plurality resistors is connected to the first output terminal or the second output terminal of the weight sensor module; the output terminal of the signal amplification circuit is connected to a voltage sampling terminal of the controller; the controller is provided with a plurality of control terminals corresponding to the plurality of resistors; and each control terminal is connected to the second terminal of a corresponding resistor in the plurality of resistors. The technical scheme of the invention can increase the zeroing range, avoids the complex operation in the process of zeroing process during the production, and improves the production efficiency of the weight sensor.

Description

technical field [0001] The invention relates to the technical field of weight sensors, in particular to a weight sensor circuit and a cooking utensil. Background technique [0002] At present, when the signal output by the load cell deviates, an external circuit needs to be adjusted. Generally, the zero adjustment of the output signal of the load cell is realized by using a fixed resistance. [0003] However, when the output signal of the load cell is not within the adjustable range of the resistance, it can only be reworked, the resistance is manually increased, or the load cell is replaced directly. In mass production, the output signal of the load cell has a high probability of not being within the normal range. At present, after the problem is found during the test, it is taken out from the production line, and the maintenance personnel are specially arranged to change the resistance and rework. The production efficiency is low. Time-consuming. [0004] Therefore, how...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/01
CPCG01G23/01
Inventor 彭淑方
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
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