A steam volume control circuit and control method for a garment steamer

Abstract

The invention provides a garment steamer steam quantity control circuit and a control method. The garment steamer steam quantity control circuit comprises a power supply module, a heating wire controlmodule, a steam switch control module, a water pump control module, a gear detection module and a controller. The controller is used to control the conduction or cut-off of the silicon controlled rectifier according to the states of a normally-closed temperature controller and a steam switch. Simultaneously, the controller controls the proportion of the conduction time to the cut-off time of thesilicon controlled rectifier in unit time according to different gear signals. By using the garment steamer steam quantity control circuit, the miniwatt silicon controlled rectifier is used to controlthe amount of water pumped by a water pump and then control the steam quantity output by a garment steamer; a cooling fin does not need to install; the structure is simple and an occupied space is small; simultaneously, before the temperature of a heating wire is not risen to a set temperature threshold value, the water pump does not work so that when the water pumped by the water pump passes through the heating wire, there is enough heat to vaporize the water passing through the heating wire, and a water drop phenomenon is avoided.

Description

technical field [0001] The invention relates to the technical field of garment steamers, in particular to a steam volume control circuit and a control method of the garment steamer. Background technique [0002] Garment ironing machine continuously contacts clothes and fabrics with scorching hot steam generated inside, so as to soften the fibers of clothes and fabrics and make clothes and fabrics flat. Because the hanging ironing machine irons the clothes in the natural hanging state, it does not need an ironing board or turning over the clothes. The ironing effect is better than that of ordinary irons, and it is not easy to burn clothes. It is suitable for ironing high-end fabrics and is very easy to use. It is convenient, so it is favored by more and more consumers and widely accepted by the market. [0003] When the existing garment steamer controls the output steam volume, it generally inputs a constant water volume into the steam generator first, and then generates dif...

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Problems solved by technology

[0003] When the existing garment steamer controls the output steam volume, it generally inputs a constant water volume into the steam generator first, and then generates different steam volumes by controlling the heating power of the heating wire in the steam generator; however, adjusting the heating The power of the wire needs to use a large load thyristor to control the heating current, or to control the heating current through a relay; and because the high-power thyristor has a large calorific value, a large heat sink is required for heat dissipation to ensure the thyristor’s performance. Normal use, so the structure of the product takes up a lot of space

In the case of frequent switching, the service life of the relay is short, and it is prone to contact arcing, contact bonding, etc.; at the same time, the existing method of controlling the steam volume of the steamer needs to configure the temperature Sensors, higher production costs

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