Traditional Chinese Electronic disinfection cabinet: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese Electronic disinfection cabinet. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 3024 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Electronic disinfection cabinetWith the continuous improvement of people's living standards, refrigerators (freezers) have entered more and more households, bringing people a lot of convenience, but at the same time, they inevitably bring all kinds of troubles. Such as cross-infection of food odors (fish smell, beef and mutton smell, cigarette smell, etc.) and germs in the refrigerator. General "deodorants" can only absorb odors but cannot kill bacteria. O3 (ozone) is a strong oxidant that can kill viruses, mold, etc. attached to the refrigerator, and can strongly oxidize odors and odors into non-toxic and harmless gases such as carbon dioxide (CO2), oxidation (O2) and water (H2O). O3 (ozone) also has strong deodorization, sterilization, mildew prevention, disinfection and other functions.The following introduces electronic disinfection circuits that can produce ozone.Circuit principle:The principle circuit diagram is shown in Figure 216. It consists of a multivibrator composed of VT1, VT2, R1, R2, R3, R4, C3, and C4 to drive the transformer T1, and its vibration frequency is about 20KHz. LED is used as an indicator light. At the same time, the working current of LED is constant, which extends the service life of the ozone tube. VT3 and VT4 form a symmetrical sine wave push stage, and C5 and C6 are used to absorb the remaining peak pulses. Since the circuit is chosen to be symmetrical and has less harmonic components, A-grade materials can be used for the push stage. The diode VD is connected to prevent the power supply from being connected reversely, and it has a certain protective effect on the subsequent circuit. Inductor L and capacitor C2 form a filter to filter out high-frequency electromagnetic waves and reduce interference to other household appliances.Component selection:VT1 and VT2 should use 3CG21 or 9021, 9015 and other types of tubes. The β value of the two tubes must be the same and ≥80. VT3 and VT4 should use 3DD325 or DD01A, and the β value should be ≥30. C1, C5, and C6 …
Sign in to unlock
One-time payment per article, billed in credits (1 $ = 100 credits). You will review the invoice and the non-refundable digital-asset policy before anything is charged. The PDF is generated on demand and embeds a licensing watermark.
Unlock this article
One-time payment · permanent access after unlock · 1 $ = 100 credits
Member level pricing for this article
| Level | Cumulative top-up | Discount | Your price | You save |
|---|---|---|---|---|
| Free | Free | — | 5,000 credits | — |
| Bronze | $100.00+ | 2% off | 4,900 credits | 100 credits |
| Silver | $1,000.00+ | 5% off | 4,750 credits | 250 credits |
| Gold | $5,000.00+ | 10% off | 4,500 credits | 500 credits |
| VIP | $20,000.00+ | 15% off | 4,250 credits | 750 credits |
Prices are billed in credits (1 $ = 100 credits). Your level upgrades automatically as your cumulative top-up grows. Top up to unlock a higher discount ›
All articles are digital assets. Once a PDF is downloaded, the purchase is final and non-refundable.
Please log in to unlock this article.
Payment Methods
pay@viprole.com
Lei Cheng
pay@viprole.com
Lei Cheng