Spray driving device and spray system

Abstract

The invention relates to a spray driving device and a spray system. The spray driving device is used for driving the piezoelectric material of a spray module; the spray driving device includes a driving circuit, a control circuit and a feedback circuit; when the control circuit controls the driving circuit to drive the piezoelectric material with a driving frequency, the feedback circuit detects electrical data fed back by the piezoelectric material and transmits the electrical data to the control circuit; and the control circuit controls the driving circuit to drive the piezoelectric material with a working frequency according to the electrical data. With the spray driving device of the invention adopted, the working frequency of a sprayer can be automatically adjusted and tracked, so that the spray effect of the sprayer can be optimized; when the piezoelectric material of the sprayer is damaged, it only needs to replace an old spray module with a new spray module, and it does not need to abandon the whole sprayer; and as for the new spray module, the sprayer will automatically adjust the working frequency, so that the spray effect of the sprayer can be optimized.

Description

technical field [0001] The invention relates to a driving device and a system, in particular to a spray driving device and a spray system. Background technique [0002] A nebulizer is a common electronic device; a well-known nebulizer includes a liquid chamber, a piezoelectric material and a driving circuit; the liquid chamber is connected to the piezoelectric material; the driving circuit is electrically connected to the piezoelectric material; the The liquid chamber is used to contain liquid, such as medicine; the drive circuit is used to drive the piezoelectric material; when the drive circuit drives the piezoelectric material, the liquid in the liquid chamber is sprayed. The operating frequency of the nebulizer (that is, the frequency at which the driving circuit drives the piezoelectric material) is usually 100KHz-150KHz. [0003] This known nebulizer involves the following disadvantages: [0004] 1. The operating frequency of most nebulizers is set when the nebulizer...

AI Technical Summary

Problems solved by technology

[0004] 1. The operating frequency of most nebulizers is set when the nebulizer is manufactured; in other words, the operating frequency of the nebulizer is fixed; however, the characteristics of each piezoelectric material are different; therefore, if each The working frequency of the sprayer is fixed, so the spray effect of the sprayer cannot be optimized

The operating frequency of some nebulizers can be adjusted with a variable resistor; however, this method is imprecise and the nebulizer's spray effect cannot be optimized

[0005] 2. When the piezoelectric material of the nebulizer is damaged, the whole nebulizer needs to be discarded

[0006] 3. The sprayer does not automatically detect whether the liquid in the liquid chamber is exhausted by spraying; when the liquid in the liquid chamber is exhausted by spraying but the sprayer continues to work, the sprayer is easily damaged and wastes energy

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