Wide voltage steam iron

Abstract

This invention provides a wide-voltage steam iron, relating to the field of steam irons. The wide-voltage steam iron includes a water tank, with a left rotating shaft housing and a right rotating shaft housing disposed on the top of the water tank; the left and right rotating shaft housings are interlocked; a rotating shaft exists between the left and right rotating shaft housings; the surface of the rotating shaft is rotatably connected to the right and left housings. When the power switch of the wide-voltage steam iron is turned on, voltage is input to a detection module.

Description

Technical Field

[0001] This invention relates to the field of steam iron technology, specifically a wide-voltage steam iron. Background Technology

[0002] Two-phase high voltage varies globally, with some countries using 240V and others using 110V. When household appliances are moved from one country to another, they may not be compatible due to voltage differences. Wide-voltage steam irons can accommodate most voltages. However, currently available steam irons often lack water storage, are inconvenient to clean and maintain, and have non-foldable handles, thus affecting their usability. Summary of the Invention

[0003] The purpose of this invention is to provide a wide-voltage steam iron to solve the problems existing in the background art described above.

[0004] Technical solution

[0005] To this end, the present invention provides the following technical solution: a wide-voltage steam iron, comprising a water tank, a left rotating shaft housing and a right rotating shaft housing disposed on the top of the water tank, the left rotating shaft housing and the right rotating shaft housing being interlocked; a rotating shaft existing between the left rotating shaft housing and the right rotating shaft housing; the surface of the rotating shaft being rotatably connected to the right housing and the left housing; the right housing and the left housing being interlocked; an aluminum alloy heating cavity disposed inside the right housing and the left housing; and a PCB (Printed Circuit Board) for the main unit disposed on the right side of the heating cavity. The PCB for the main unit has a transparent light and a power supply back cover on its right side; the transparent light and the power supply back cover are interlocked on the right side of the right and left housings; a steam knob is provided on the upper part of the water tank; a damping valve is provided on the right side of the steam knob; a damping ring is provided on the surface of the damping valve; a panel cover is provided on the left side of the heating chamber; an aluminum alloy perforated plate is provided on the left side of the panel cover; a water tank cover is provided at the bottom of the water tank; a water suction valve is provided inside the water tank; the bottom of the water tank cover and a silicone cover for water filling are interlocked.

[0006] Furthermore, the PCB for the main unit is connected to an external power supply.

[0007] Furthermore, the PCB for the main unit is also equipped with a voltage detection module; the voltage detection module receives a power-on detection signal based on the power signal of the connection switch; the detection signal is transmitted to the polysilicon; the polysilicon undergoes rectification; the rectified stable voltage is available at a specific rated value; the actual numerical signal of the output voltage is output; for the signal, the rated voltage and waveform are adjusted and output by a controllable module.

[0008] Furthermore, the rated voltage and wave mode output stable signal; the output stable signal is transmitted to the chip and PCB for controlling the water pump, the heating cavity and the resistance wire.

[0009] This invention provides a wide-voltage steam iron, which has the following specific beneficial effects.

[0010] 1. When the power switch of the wide-voltage steam iron is turned on, the voltage is input to the detection module that receives the power-on detection signal. After rectification, the actual magnitude of the input voltage is detected; the voltage and waveform are adjusted and output through the controllable module, and then transmitted to the chip used to control the water pump, the aluminum alloy (with built-in heating resistance wire), and the electronic components on the PCB; the aluminum alloy heating chamber can hold water and steam; using the technical solution of this invention, the steam iron, as a household appliance, operates with an equivalent power of constant 1000W and a voltage that is always stable within a certain range (80V~260V).

[0011] In this wide-voltage steam iron, the handle features a water storage space; a suction valve is used to clean the water tank; the handle performs the water storage function; the upper and lower ends are sealed; its bottom and a silicone cap for water filling interlock; opening the silicone cap allows water to be filled; closing it prevents leakage; this prevention is based on the elasticity of silicone. Water absorption relies on a suction valve with built-in elastic silicone; springs and steel balls are available. A rotatable mechanism is integrated with a rotary lock on the foldable handle body and the water storage handle; the water tank can be removed by rotation, and a rotary lock is integrated thereon; a water hose is provided on the foldable handle body, and the hose is spring-pressed into the suction valve by the rotary lock; its water flow is smooth. The bottom cover of the water tank can be cleaned and rinsed; the water tank cover has a rotatable locking and opening structure; the end face of the water tank cover has a closed silicone cap, thus forming a closed space. To clean and rinse the water tank, the water tank cover is opened by rotation, thus revealing the space inside the water tank for easy cleaning. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of the present invention is shown.

[0013] Reference numerals: 1- Silicone cap for water filling; 2- Water tank cap; 3- Suction valve; 4- Left rotating shaft housing; 5- Left housing; 6- Transparent light and power supply rear cover; 7- PCB for main unit; 8- Right housing; 9- Heating chamber; 10- Panel cover; 11- Aluminum alloy perforated plate; 12- Steam knob; 13- Damping valve; 14- Right rotating shaft housing; 15- Damping ring; 16- Water tank; 17- Water pump. Detailed Implementation

[0014] like Figure 1As shown, an embodiment of the present invention provides a wide-voltage steam iron, which includes a water tank 16. A left rotating shaft housing 4 and a right rotating shaft housing 14 are disposed on the top of the water tank 16, wherein the left rotating shaft housing 4 and the right rotating shaft housing 14 are interlocked. A rotating shaft exists between the left rotating shaft housing 4 and the right rotating shaft housing 14. The surface of the rotating shaft is rotatably connected to a right housing 8 and a left housing 5. The right housing 8 and the left housing 5 are interlocked. An aluminum alloy heating chamber 9 is disposed inside the right housing 8 and the left housing 5. A PCB 7 for the main unit is disposed on the right side of the heating chamber 9. The PCB 7 for the main unit is connected to an external power supply. A transparent light and a power supply cover 6 are provided on the right side of the 7; the transparent light and the power supply cover 6 are interlocked on the right side of the right housing 8 and the left housing 5; a steam knob 12 is provided on the upper part of the water tank 16; a damping valve 13 is provided on the right side of the steam knob 12; a damping ring 15 is provided on the surface of the damping valve 13; a panel cover 10 is provided on the left side of the heating chamber 9; an aluminum alloy perforated plate 11 is provided on the left side of the panel cover 10; a water tank cover 2 is provided at the bottom of the water tank 16; a water suction valve 3 is provided inside the water tank 16; the bottom of the water tank cover 2 and the silicone cover 1 for water filling are interlocked.

[0015] The focus of this invention is to complete the operation of a circuit control board based on a power supply connection to a resistance wire, involving a voltage detection module. The voltage detection module receives a power-on detection signal based on the power signal from the switch; the detection signal is transmitted to a polysilicon wafer; the polysilicon wafer undergoes rectification; the rectified stable voltage is available at a specific rated value; the actual numerical signal of the output voltage is then output; for this signal, a controllable module adjusts and outputs a rated voltage and a waveform mode; the waveform mode outputs a stable signal, which is transmitted to a chip and PCB for controlling the water pump 17, the heating chamber 9, and the resistance wire. The heating module always receives a voltage within a certain range (80V to 260V), which is supplied to the rated power resistance wire as the heating chamber, while the rated power resistance wire is heated at full power; as the resistance wire is heated, heat conduction is achieved. Heat conduction is based on aluminum, which has a thermal conductivity of **237W / (m·K); since aluminum is a metallic material, it has high thermal conductivity. When water flows over its surface, it immediately absorbs heat and transfers it to the surrounding air, hence the very high thermal conductivity of aluminum. The aluminum alloy heating chamber immediately utilizes the high thermal conductivity of aluminum alloy; water is pumped into the heating chamber before it becomes steam; when liquid water with a thermal conductivity of approximately 0.59 W / (m·K) adheres to the surface of the aluminum alloy heating chamber, this water changes from a liquid to a gaseous state. The vaporization of liquid water represents a physical change: when water changes from a liquid to a gaseous state, vaporization occurs, the volume expands, and the spacing between water molecules changes (increases). The principle of water evaporation is as follows: when the heating chamber is heated, individual water molecules have different molecular kinetic energies (in other words, different average molecular kinetic energies) at different temperatures, exhibiting distribution characteristics; there are high molecular velocities and low molecular velocities; if high-speed molecules are on the surface, they may break free from intermolecular forces and escape, leading to evaporation, which can occur at very low temperatures. As the heating chamber experiences a temperature increase under energized conditions, the average molecular kinetic energy increases, high-speed molecules constitute a large proportion, and therefore evaporation becomes increasingly pronounced; at the boiling point, a large number of intramolecularly evaporated bubbles can reach the surface and evaporate, leading to vigorous evaporation and subsequent boiling.

[0016] The heating chamber is equipped with a temperature sensor tube for real-time temperature detection. The detected temperature is transmitted to a chip, which controls the water flow into the pump and the heating time, achieving intelligent calculation and control. Specifically, it employs chip-based intelligent dual-sided control. When the thermal energy exceeds the energy absorbed during water vaporization—in other words, when there is no excess liquid water remaining in the heating chamber—water spraying is impossible, ensuring excellent safety. PCB 7 for the main unit is fixed to the transparent lens of the lamp; the power button housing and rear cover are connected with fixing screws; the module is placed on the PCB; PCB 7 for the main unit is connected to an external power supply. The water pump ports are connected to PCB 7 for the main unit and the steam button + circuit board, respectively; the steam button controls the water pump's water supply; once the steam button is pressed, the water pump starts pumping water; pressing the steam button again stops the water supply. The two ports of the water pump's inlet and outlet channels are connected to water pipes; the inlet end is connected to one end of the water inlet pipe, and the other end of the water inlet pipe is connected to the bottom of the water tank. The water tank can be rotated and disassembled; the disassembled water tank is equipped with a one-way water supply valve; after the water valve is installed, it can be opened; when it is removed, it closes and blocks the water; the inner end of the water valve is connected to the water inlet pipe; the other end of the water inlet pipe is fixed to the bottom of the water tank; the water inlet pipe at the bottom of the water tank passes through the water valve; the other end of the water valve is connected to the water inlet pipe; one end of the water inlet pipe is connected to the connection inlet of the water pump, and the other end is connected to the water inlet of the heating chamber and passes through the heat sink; the heat sink transports the preheated water from the heat sink to the heating chamber 9 for heat energy conversion, in which case the water becomes water vapor; the water vapor is discharged from the corresponding hole on the electric ironing board through the outlet at the front of the heating chamber.

[0017] After receiving the signal, the water pump presses the steam button to start the water pump; water is delivered to the water pump's input port through the water inlet pipe (with a built-in stainless steel spring), and then delivered to the water pump for pressurization; after pressurization, the water flows out from the water pump's output port connected to the water inlet pipe, which passes through the heat sink connected to the PCB silicon wafer.

[0018] The heat sink consists of upper and lower aluminum alloy covers, a water inlet pipe, and a cold water circulation system. The lower cover has an embedded U-shaped annular channel in which the water inlet pipe is placed. The upper cover, lower cover, and water inlet pipe are fixed together with screws to form the heat sink. The water inlet pipe transmits and absorbs heat from the working polycrystalline silicon plate; as cold water flows through the water inlet pipe, the temperature decreases; finally, the water inlet pipe injects water into the heating chamber.

[0019] The heating chamber 9 consists of an aluminum alloy (with a built-in heating resistance wire) and multiple inner cavities separated by reinforcing ribs. In this configuration, each inner cavity is fitted with a cover plate and a silicone sheet, thus forming a closed-loop space. The outer side of each inner cavity is equipped with a power terminal, ventilation holes, a temperature detector, an overload fuse, a tripping temperature control switch, and a neutral wire port. The upper cover plate has a water inlet; the closed-loop space is the location for energy conversion and water to steam conversion. For electric power, the principle is as follows: when the resistance wire is energized, heat is generated, causing the water to undergo physical changes under high pressure, thereby converting electrical energy into steam energy. After plugging in the power cord and pressing the power button, a water pump that can control the water flow delivers water to the heating aluminum alloy body. Within this body, the temperature rises, and the liquid water is converted into steam through heat conduction. The steam undergoes a three-stage pressurization mechanism and is ejected at high speed through holes on the ironing panel. In this state, the steam is at a high speed and high temperature, used for ironing and pressing clothing. Therefore, a portable wide-voltage steam iron has emerged.

[0020] The heating chamber 9 has a built-in temperature detector connected to the PCB 7 for the main unit; the temperature detector detects the temperature in real time and transmits the temperature to the IC (Integrated Circuit) on the PCB 7 for the main unit; the IC connects to the switching power supply signal according to the voltage detection module; the signal is fed back to the resistance wire of the heating chamber, while the resistance wire is heated with a stable voltage in a region; the control signal is transmitted bidirectionally between the heating chamber and the temperature detector.

[0021] The handle has a variety of different folding angles; the damping valve 13 has a damping ring 15; the concave and convex shapes are in an integrated space and interact within that space to produce the folding angles.

[0022] The handle has a water tank with a water storage space. The water tank can be washed and rinsed. The handle has a water storage function; the upper and lower ends are sealed; its bottom and a silicone cap 1 for water filling are interlocked; opening the silicone cap allows water to be filled; once the silicone cap 1 for water filling is closed, it can block water to prevent leakage; this prevention is based on the elasticity of silicone; water absorption relies on a water suction valve 3 with built-in elastic silicone; wherein the spring and steel ball are integrated.

[0023] The foldable handle, water intake handle, and water storage handle are equipped with a rotatable device integrated with a rotary lock; the water tank 16 can be removed by rotation. A funnel is provided on the foldable handle, which is spring-pressed into the suction valve 3 by the rotary lock; its water passage is unobstructed. The water tank lid 2 can be cleaned; the water tank lid 2 has a structure that can be locked and opened by rotation; the end face of the water tank lid 2 is provided with a closed silicone cap to form a sealed space. For cleaning and rinsing the water tank, the water tank lid 2 is opened by rotation, thereby revealing the space inside the water tank 16 for easy cleaning.

Claims

1. A wide voltage steam iron, comprising a water tank, wherein a left rotating shaft housing and a right rotating shaft housing are provided on the top of the water tank, and the left rotating shaft housing and the right rotating shaft housing are interlocked; A rotating shaft exists between the left and right rotating shaft housings; the surface of the rotating shaft is rotatably connected to the right and left housings; the right and left housings are interlocked; heating chambers are provided inside the right and left housings. A PCB is provided on the right side of the heating cavity; A transparent light and a power supply back cover are provided on the right side of the PCB; the transparent light and the power supply back cover are interlocked on the right side of the right and left housings. A steam knob is provided on the upper part of the water tank; a damping valve is provided on the right side of the steam knob; The surface of the damping valve is provided with a damping ring; a panel cover is provided on the left side of the heating chamber; an aluminum alloy perforated plate is provided on the left side of the panel cover; The water tank is equipped with a water tank cover at the bottom; a water suction valve is installed inside the water tank; the bottom of the water tank cover and the silicone cap for water filling are interlocked.

2. The wide-voltage steam iron according to claim 1, characterized in that: The PCB is configured to be connected to an external power source.

3. The wide-voltage steam iron according to claim 2, characterized in that: The PCB is equipped with a voltage detection module; the voltage detection module is used to receive a power-on detection signal based on the power signal of the switch. The power signal is configured to be transmitted to the polysilicon; the polysilicon is configured to be rectified; the rectified stable voltage is configured to be available at a specific rated value; the actual voltage value signal is configured to be output; the power signal, rated voltage, and waveform are configured to be regulated and output via a controllable module.

4. The wide-voltage steam iron according to claim 1, characterized in that: The rated voltage and the waveform are configured to output a stable signal; and the stable signal is configured to be transmitted to the chip and the PCB, the PCB being configured to control the water pump, the heating chamber and the resistance wire.

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