Preheating electric iron

Abstract

The utility model discloses a preheating electric iron which comprises an electric iron body, a handle, a water tank, a vaporizing chamber and a bottom plate are arranged in the electric iron body, an isolation hood is arranged between the water tank and the vaporizing chamber and covers the vaporizing chamber, the water tank is arranged on the upper portion of the isolation hood, and the bottom plate is arranged on the upper portion of the isolation hood. A pre-heating assembly, a circuit board and a water pump are arranged on the isolation cover, the circuit board is electrically connected with the pre-heating assembly and the water pump, the pre-heating assembly receives an electric signal to heat water stored in the water tank to a proper temperature, and the water pump receives an electric signal to convey the water stored in the water tank into the vaporizing chamber. The utility model has the following advantages and effects: water in the water tank is pre-heated to a proper temperature before ironing, the water can be fully vaporized in the vaporizing chamber, and the phenomenon of water dripping can not be caused when a large amount of water vapor needs to be sprayed out.

Description

Technical Field

[0001] The utility model relates to the technical field of electric irons, in particular to a pre-heated electric iron. Background Art

[0002] An electric iron is a tool for flattening clothes and fabrics. Inside the shell of an existing steam electric iron, there is a control circuit board and a water tank. A chassis with a vaporization chamber and steam holes is installed at the bottom of the shell. However, for traditional steam electric irons, the heating temperature does not match the steam volume. Insufficient heating temperature or excessive water output will cause dripping; too high heating temperature or insufficient steam volume will damage the fabric material.

[0003] At the same time, for traditional steam electric irons, a temperature regulator for controlling the heating temperature is provided on the control circuit board. The rotating shaft of the temperature regulator is connected to a temperature knob outside the shell; a water outlet valve for controlling the generation of steam is provided between the water tank and the vaporization chamber. The water outlet of the water outlet valve is closed by a valve plug at the bottom end of its valve stem. A steam knob is provided outside the shell corresponding to the position of the valve stem. The valve stem is pushed by a spring so that its upper end is fixed on the inclined plane at the bottom of the steam knob. By rotating the steam knob, the valve stem of the water outlet valve drives the valve plug to move upward, and the water outlet is communicated with the water tank. The size of the rotation of the steam knob correspondingly changes the opening degree of the valve plug of the water outlet valve, that is, the amount of steam generated. Traditional steam electric irons adjust the temperature of the electric iron and the amount of steam output through a mechanical structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pre-heated electric iron, which pre-heats the water in the water tank to an appropriate temperature before ironing, so that the water can be fully vaporized in the vaporization chamber and there will be no dripping phenomenon when a large amount of water vapor needs to be ejected.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A pre-heated electric iron includes an electric iron main body. A handle, a water tank, a vaporization chamber and a bottom plate are arranged inside the electric iron main body. A partition cover is arranged between the water tank and the vaporization chamber. The partition cover covers the vaporization chamber. The water tank is arranged above the partition cover. A pre-heating component, a circuit board and a water pump are arranged on the partition cover. The circuit board is electrically connected to the pre-heating component and the water pump respectively. The pre-heating component receives an electrical signal to heat the stored water in the water tank to an appropriate temperature. The water pump receives an electrical signal to transport the stored water in the water tank to the vaporization chamber.

[0006] The further setting of the utility model is: The pre-heating component includes a heating element and a temperature sensor. The heating element is arranged at the bottom of the water tank. The temperature sensor is arranged on the water tank to detect the temperature of the stored water in the water tank. The heating element and the temperature sensor are electrically connected to the circuit board respectively.

[0007] A further setting of the present utility model is that the heating element is a PTC heating element.

[0008] A further setting of the present utility model is that the vaporization chamber is arranged closely against the bottom plate, a heating pipe is arranged inside the vaporization chamber, and the heating pipe is electrically connected to the circuit board.

[0009] A further setting of the present utility model is that the water pump abuts against the water tank and the isolation cover, the input end of the water pump is connected to the output end of the water tank, and the output end of the water pump is connected to the input end of the vaporization chamber.

[0010] A further setting of the present utility model is that the water tank is provided with a first groove, the isolation cover is provided with a second groove, a plurality of limiting ribs are arranged on the second groove, and the water pump is limited and fixed by fitting the first groove and the second groove with the plurality of limiting ribs.

[0011] A further setting of the present utility model is that a temperature control component is arranged on the vaporization chamber, the temperature control component is electrically connected to the circuit board, and the temperature control component detects the temperature data of the vaporization chamber and sends it to the circuit board.

[0012] A further setting of the present utility model is that a temperature sensing element is arranged on the bottom plate, the temperature sensing element is connected to the circuit board, and the temperature sensing element transmits the temperature signal of the clothing contacted by the bottom plate to the circuit board.

[0013] A further setting of the present utility model is that a power supply circuit and a control circuit are arranged on the circuit board, the control circuit is electrically connected to the water pump, the heating element and the heating pipe respectively, and the control circuit is signal-connected to the temperature sensor, the temperature control component and the temperature sensing element.

[0014] A further setting of the present utility model is that the control circuit includes a control chip, a transistor and a semiconductor field effect tube. The transistor controls the start and stop of the heating pipe, and the semiconductor field effect tube controls the start and stop of the water pump and the heating element.

[0015] Compared with the prior art, the present utility model has the following beneficial effects: 1. The pre-heated electric iron of the present utility model pre-heats the water in the water tank to an appropriate temperature before ironing, and the water can be fully vaporized in the vaporization chamber, so that there will be no water dripping phenomenon when a large amount of water vapor needs to be ejected. 2. A temperature sensing element is installed on the bottom plate, and appropriate steam can be automatically ejected for ironing by detecting the temperature of the ironed fabric. 3. The control chip can automatically adjust the temperature of the iron and the steam output according to the temperature of the fabric, reducing the setting of the mechanical structures for the temperature adjustment knob and the steam volume adjustment. Description of the Drawings

[0016] Figure 1 It is a perspective view of the pre-heated electric iron in the embodiment.

[0017] Figure 2It is a cross-sectional view of a preheated electric iron in the embodiment.

[0018] Figure 3 It is an internal structure diagram of the preheated electric iron in the embodiment.

[0019] Figure 4 It is an internal structure diagram of the preheated electric iron in the embodiment with the isolation cover removed.

[0020] Figure 5 It is a structure diagram of the installation location of the water pump of the preheated electric iron in the embodiment.

[0021] Figure 6 It is the soleplate of the preheated electric iron in the embodiment.

[0022] Figure 7 It is a circuit principle block diagram on the circuit board of the preheated electric iron in the embodiment.

[0023] Figure 8 It is a control circuit diagram in the embodiment.

[0024] In the figure: 1. Electric iron body; 2. Handle; 201. Switch assembly; 3. Circuit board; 4. Water tank; 401. Water filling port; 5. Vaporization chamber; 501. Heating tube; 502. Temperature control component; 6. Soleplate; 601. Temperature sensing element; 7. Isolation cover; 701. Bracket; 702. Water pump; 703. First groove; 704. Second groove; 705. Limit rib; 706. Limit block; 8. Preheating component; 801. Heating element; 802. Temperature sensor. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figure 1-8 shown, a preheated electric iron includes an electric iron body 1. From top to bottom on the electric iron body 1 are a handle 2, a water tank 4, a vaporization chamber 5, and a soleplate 6 in sequence. A switch assembly 201 is provided on the handle 2, and the switch assembly 201 controls the startup and operation of the electric iron. When ironing clothes, start the electric iron, convey the stored water in the water tank 4 to the vaporization chamber 5 to be vaporized into water vapor and then output to the soleplate 6, and the water vapor is ejected from the jet ports of the soleplate 6 to iron the clothes.

[0027] As Figure 2 、 Figure 3As shown, a partition cover 7 is provided between the water tank 4 and the vaporization chamber 5. The water tank 4 is arranged on the upper side of the partition cover 7. The partition cover 7 covers the vaporization chamber 5, and the vaporization chamber 5 is arranged inside the partition cover 7. The partition cover 7 isolates the water tank 4 and the vaporization chamber 5. In this embodiment, during ironing, to quickly vaporize the stored water, the temperature inside the vaporization chamber 5 can be heated to a high temperature of over 200 degrees Celsius at most. The high temperature will be transmitted outward through air or medium, affecting the normal operation of electronic components. To prevent the high temperature from affecting the normal operation of other components of the electric iron and the safety of users, a partition cover 7 is covered on the vaporization chamber 5 to isolate the heat conduction of the high temperature. A preheating component 8 and a water pump 702 are provided between the water tank 4 and the partition cover 7. Two brackets 701 are integrally formed above the partition cover 7. A circuit board 3 and a water filling port 401 are arranged on the brackets 701. The preheating component 8 and the water pump 702 are respectively electrically connected to the circuit board 3. The circuit board 3 outputs an electrical signal to control the preheating component 8 to heat the stored water in the water tank 4 to an appropriate temperature, and the circuit board 3 outputs an electrical signal to control the water pump 702 to transport the stored water to the vaporization chamber 5 and control the amount of stored water transported by the water pump 702 per unit time. In this embodiment, the preheating component 8 can preheat the stored water in the water tank 4 to 60 degrees. At the same time, the water pump 702 can transport a large amount of stored water to the vaporization chamber 5 in a short time. The preheated stored water can be quickly vaporized, and a large amount of water vapor is ejected.

[0028] The preheating component 8 includes a heating element 801 and a temperature sensor 802. The heating element 801 is arranged at the bottom of the water tank 4 to heat the stored water in the water tank 4. The temperature sensor 802 is arranged on the water tank 4. When the water temperature in the water tank 4 reaches the set temperature, an electrical signal is transmitted to the circuit board 3, and the circuit board 3 issues a signal to cut off the power supply of the heating element 801 and stop heating.

[0029] In this embodiment, the heating element 801 of the preheating component 8 preferably adopts a PTC heating element 801.

[0030] As Figure 4 shown, the vaporization chamber 5 is arranged closely against the bottom plate 6. Multiple parts at the bottom of the vaporization chamber 5 abut against the upper side of the bottom plate 6. A heating pipe 501 is arranged inside the vaporization chamber 5. The heating pipe 501 is electrically connected to the circuit board 3. The heating pipe 501 heats the vaporization chamber 5 to form a high-temperature environment. The stored water input into the vaporization chamber 5 turns into steam and is output to the bottom plate 6 and ejected. The components at the bottom of the vaporization chamber 5 are arranged to abut against the upper side of the bottom plate 6. The high temperature on the vaporization chamber 5 is conducted to the bottom plate 6 through the components to heat the bottom plate 6.

[0031] As Figure 4 shown, a temperature control component 502 is arranged on the vaporization chamber 5. The temperature control component 502 is electrically connected to the circuit board 3. The temperature control component 502 detects the temperature data of the vaporization chamber 5 and sends it to the circuit board 3 to control the heating of the heating pipe 501 to avoid dry burning in the vaporization chamber 5 due to long-term heating.

[0032] AsFigure 5 As shown, a water pump 702 is provided on the isolation cover 7. In this embodiment, the water pump 702 is abutted against the water tank 4 and the isolation cover 7. And in order to make the structure of the electric iron compact and thus set a large-capacity water tank 4, a first groove 703 is provided at the place where the water tank 4 abuts against the water pump 702, and a second groove 704 is provided at the place where the isolation cover 7 abuts against the water pump 702. The first groove 703 and the second groove 704 respectively fit the outer shape of the place where they abut against the water pump 702. A number of limiting ribs 705 are provided on the second groove 704, and the limiting ribs 705 limit and fix the water pump 702. The input end of the water pump 702 is connected to the output end of the water tank 4, and the output end of the water pump 702 is connected to the input end of the vaporization chamber 5; A number of limiting blocks 706 are provided on the isolation cover 7, and the number of limiting blocks 706 limits and fixes the water delivery pipe. At the same time, a heating element 801 is provided at the upper end of the limiting block 706, and the limiting block 706 limits and fixes the heating element 801 so that the heating element 801 abuts against the bottom of the water tank 4; In this embodiment, the use of the water pump 702 can output a large amount of stored water to the vaporization chamber 5 for vaporization in a short time, and a large amount of strong steam is ejected from the jet nozzle on the bottom plate 6 for ironing thick fabrics. At the same time, the stored water in the water tank 4 is preheated in water temperature, and the stored water can be fully vaporized into water vapor and ejected after absorbing appropriate heat in the vaporization chamber 5, solving the problem that a large amount of water droplets are entrained when the electric iron ejects water vapor.

[0033] As Figure 6 shown, in some embodiments, a temperature sensing element 601 can be provided on the bottom plate 6. The temperature sensing element 601 is electrically connected to the circuit board 3. When ironing clothes, the bottom plate 6 contacts the cold clothes, and the temperature sensing element 601 sends the temperature signal of the clothes to the circuit board 3. The circuit board 3 sends a signal to the water pump 702 to start the water pump 702 to transport the stored water to the vaporization chamber 5 to be heated into steam. The steam is ejected from the jet nozzle of the bottom plate 6 onto the clothes. The steam condenses on the clothes to moisten the clothes and heats the clothes. At the same time, the bottom plate 6 of the electric iron also transfers heat to the clothes. When the temperature on the clothes rises to an appropriate value, the water pump 702 is stopped from transporting the stored water, and the bottom plate 6 continues to transfer heat to dry the moisture in the clothes. As the moisture in the clothes decreases, the temperature of the clothes rises. At this time, the heating pipe 501 temperature of the vaporization chamber 5 is cut off to complete ironing.

[0034] As Figure 7 shown, a power supply circuit and a control circuit are provided on the circuit board 3. The power supply circuit converts the AC mains into direct current to provide electrical energy for the control circuit. The control circuit is electrically connected to the water pump 702, the heating element 801 and the heating pipe 501 respectively. The control circuit is signal-connected to the temperature sensor 802, the temperature control component 502 and the temperature sensing element 601. The control circuit receives the signal of the temperature sensor 802 to control the heating of the heating element 801, the control circuit receives the signal of the temperature sensing element 601 to control the water volume transported by the water pump 702, and the control circuit receives the signal of the temperature control component 502 to control the heating of the heating pipe 501.

[0035] AsFigure 8 As shown, the control circuit includes a control chip. The control chip receives the digital signals collected and converted by the temperature sensor 802, the temperature control component 502, and the temperature sensing element 601, and outputs control signals to control the start and stop of the water pump 702, the heating element 801, and the heating pipe 501. The control circuit control adopts transistors and semiconductor field effect transistors. The transistor controls the start and stop of the heating pipe 501, and the semiconductor field effect transistor controls the start and stop of the water pump 702 and the heating element 801. At the same time, when controlling the water pump 702, the rotation speed of the water pump 702 can also be adjusted by the output duty ratio, so as to adjust the water volume conveyed by the water pump 702.

[0036] The above is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A preheated electric iron, comprising an electric iron body (1), wherein a handle (2), a water tank (4), a vaporization chamber (5) and a soleplate (6) are arranged in the electric iron body (1), and it is characterized in that: A partition cover (7) is provided between the water tank (4) and the vaporization chamber (5). The partition cover (7) covers the vaporization chamber (5). The water tank (4) is arranged above the partition cover (7). A preheating assembly (8), a circuit board (3) and a water pump (702) are arranged on the partition cover (7). The circuit board (3) is electrically connected to the preheating assembly (8) and the water pump (702) respectively. The preheating assembly (8) receives an electrical signal to heat the stored water in the water tank (4) to an appropriate temperature. The water pump (702) receives an electrical signal to transport the stored water in the water tank (4) into the vaporization chamber (5).

2. The preheated electric iron according to claim 1, characterized in that: The preheating assembly (8) includes a heating element (801) and a temperature sensor (802). The heating element (801) is arranged at the bottom of the water tank (4). The temperature sensor (802) is arranged on the water tank (4) to detect the temperature of the stored water in the water tank (4). The heating element (801) and the temperature sensor (802) are electrically connected to the circuit board (3) respectively.

3. The preheated electric iron according to claim 2, characterized in that: The heating element (801) is a PTC heating element.

4. A preheated electric iron according to claim 1, characterized in that: The vaporization chamber (5) is arranged closely against the bottom plate (6). A heating pipe (501) is arranged in the vaporization chamber (5). The heating pipe (501) is electrically connected to the circuit board (3).

5. The preheated electric iron according to claim 1, wherein: The water pump (702) is arranged in contact with the water tank (4) and the partition cover (7). The input end of the water pump (702) is connected to the output end of the water tank (4). The output end of the water pump (702) is connected to the input end of the vaporization chamber (5).

6. The preheated electric iron according to claim 5, wherein: The water tank (4) is provided with a first groove (703). The partition cover (7) is provided with a second groove (704). A plurality of limiting ribs (705) are arranged on the second groove (704). The water pump (702) is limited and fixed by fitting the first groove (703) and the second groove (704) with the plurality of limiting ribs (705).

7. A preheated electric iron according to claim 4, characterized in that: A temperature control component (502) is arranged on the vaporization chamber (5). The temperature control component (502) is electrically connected to the circuit board (3). The temperature control component (502) detects the temperature data of the vaporization chamber (5) and sends it to the circuit board (3).

8. The preheated electric iron according to claim 7, characterized in that: A temperature sensing element (601) is arranged on the bottom plate (6). The temperature sensing element (601) is connected to the circuit board (3). The temperature sensing element (601) transmits the temperature signal of the clothing in contact with the bottom plate (6) to the circuit board (3).

9. The preheated electric iron according to claim 8, wherein: A power supply circuit and a control circuit are arranged on the circuit board (3). The control circuit is electrically connected to the water pump (702), the heating element (801) and the heating pipe (501) respectively. The control circuit is signal-connected to the temperature sensor (802), the temperature control component (502) and the temperature sensing element (601).

10. A preheated electric iron according to claim 9, characterized in that: The control circuit includes a control chip, a transistor and a semiconductor field effect transistor. The transistor controls the start and stop of the heating pipe (501). The semiconductor field effect transistor controls the start and stop of the water pump (702) and the heating element (801).

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