Garment steamer

Abstract

The utility model provides a garment steamer which comprises a water tank used for storing water; the evaporation assembly is communicated with the water tank and is used for generating steam; the water pump is used for conveying water in the water tank to the evaporation assembly; the power input end is used for inputting power; the first switch is connected between the power supply input end and the evaporation assembly; and the single chip microcomputer is connected with the first switch and controls the conduction time of the first switch. The single-chip microcomputer can control the conduction time of the first switch, so that the power supply changed by the first switch is matched with the evaporation assembly. Thus, no matter whether the input power supply of the garment steamer is high voltage or low voltage, the power supply can be matched with the evaporation assembly after being processed, the adaptability is good, extra operation of a user is not needed, and the garment steamer can stably work.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a hanging ironing machine. Background Art

[0002] The garment steamer is provided with an evaporator for generating steam. The evaporator includes an evaporator suitable for a 110V power supply and an evaporator suitable for a 220V power supply, so that the garment steamer also includes a garment steamer suitable for a 110V power supply and a garment steamer suitable for a 220V power supply. When a garment steamer suitable for a 110V power supply is connected to a 220V power supply, a fire may occur, causing the user to face great danger. On the other hand, when a garment steamer suitable for a 220V power supply is connected to a 110V power supply, the garment steamer cannot perform its function of ironing clothes. In summary, the adaptability of existing garment steamers is poor. Summary of the invention

[0003] In view of the above-mentioned defects in the prior art, the present invention provides a garment steamer, aiming to solve the problem of poor adaptability of the existing garment steamers.

[0004] In order to solve the above technical problems, the present invention provides a garment steamer, which comprises:

[0005] Water tank, used to store water;

[0006] an evaporation component, connected to the water tank and used to generate steam;

[0007] A water pump, used for conveying water in the water tank to the evaporation component;

[0008] A power input terminal, used for inputting power;

[0009] A first switch connected between the power input terminal and the evaporation component;

[0010] The single chip microcomputer is connected to the first switch and controls the conduction time of the first switch.

[0011] In one embodiment, the single chip microcomputer is connected to the power input terminal; the single chip microcomputer can detect the input voltage of the power input terminal and adjust the conduction time of the first switch according to the input voltage, and the input voltage is inversely correlated with the conduction time.

[0012] In one embodiment, the evaporation assembly includes a heating element and a temperature sensor, wherein the temperature sensor is disposed adjacent to the heating element and is capable of detecting the temperature of the heating element;

[0013] The single chip microcomputer is connected to the temperature sensor and adjusts the on-time of the first switch according to the temperature detected by the temperature sensor and the input voltage of the power input terminal, and the temperature is inversely correlated with the on-time.

[0014] In one implementation, when the temperature exceeds a first preset temperature, the single chip microcomputer controls the first switch to be disconnected, so as to disconnect the heating element from the power supply.

[0015] In one embodiment, when the temperature is lower than a second preset temperature, the single chip microcomputer increases the on-time of the first switch so that the temperature of the heating element is within a preset range;

[0016] When the temperature is higher than a third preset temperature, the single chip microcomputer reduces the on-time of the first switch to make the temperature of the heating element within a preset range, and the third preset temperature is greater than the second preset temperature.

[0017] In one embodiment, the first switch is a bidirectional thyristor.

[0018] In one embodiment, a second switch is further included, which is connected to the water pump and controls the on and off of the water pump. The single-chip microcomputer is connected to the second switch and controls the on time of the second switch to adjust the water supply of the water pump.

[0019] In one embodiment, the evaporation assembly includes a heating element and a temperature sensor, wherein the temperature sensor is disposed adjacent to the heating element and is capable of detecting the temperature of the heating element;

[0020] The single chip microcomputer is connected to the temperature sensor. When the temperature reaches a fourth preset temperature, the single chip microcomputer controls the second switch to be turned on, so that the water pump delivers water in the water tank to the evaporation component.

[0021] In one embodiment, it further comprises:

[0022] The step-down module is connected between the power input terminal and the single-chip microcomputer, and the step-down module steps down the input power of the power input terminal to a working voltage suitable for the single-chip microcomputer.

[0023] In one embodiment, the voltage reduction module is connected to the water pump, and the voltage reduction module reduces the input power of the power input end to an operating voltage suitable for the water pump.

[0024] In the technical solution of the present invention, the garment steamer includes a water tank for storing water, an evaporation component connected to the water tank and generating steam, a water pump, a power input terminal, a single-chip microcomputer and a first switch. The power input terminal is used to input power, and the power supply can be an AC voltage of 100V-240V. The single-chip microcomputer can control the conduction time of the first switch, thereby changing the conduction time of the power input terminal and the evaporation component, so that the evaporation component can work normally under different voltages. In this way, whether the power input to the garment steamer is high voltage (such as 220V) or low voltage (110V), the evaporation component can be adapted for use, with good adaptability, and the garment steamer can work stably without the need for additional user operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 2 is a schematic structural diagram of a garment steamer according to a first embodiment of the present invention.

[0027] Figure 2 for Figure 1 A schematic structural diagram of the garment steamer from another angle is shown.

[0028] Figure 3 for Figure 1 Exploded view of the steamer shown.

[0029] Figure 4 for Figure 1 Another exploded view of the garment steamer shown.

[0030] Figure 5 for Figure 3 An exploded view of a portion of the evaporation assembly is shown.

[0031] Figure 6 for Figure 3 An exploded view of a portion of the evaporation assembly shown from another angle.

[0032] Figure 7 for Figure 3 The structural schematic diagram of the first sub-shell is shown.

[0033] Figure 8 for Figure 3 A schematic structural diagram of the first sub-housing from another angle is shown.

[0034] Fig. 9 for Figure 3 The structural schematic diagram of the second sub-housing is shown.

[0035] Fig.10 for Figure 3 A schematic structural diagram of the second sub-housing at another angle is shown.

[0036] Fig.11 for Figure 3 The structural schematic diagram of the third sub-shell is shown.

[0037] Fig.12 for Figure 3 A schematic structural diagram of the third sub-housing from another angle is shown.

[0038] Fig.13 for Figure 1 The operating circuit diagram of the garment steamer shown.

[0039] Fig.14 for Figure 1 Another operating circuit diagram of the garment steamer.

[0040] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] refer to Figures 1 to 14The embodiment of the present invention provides a garment steamer 100, which may be a handheld garment steamer. The garment steamer 100 includes a housing 10, a water tank 14 for storing water, an evaporation component 20 connected to the water tank 14 and generating steam, a water pump 60 for transferring water in the water tank 14 to the evaporation chamber 24, a power input terminal 80 for inputting power, a first switch 30 for connecting the evaporation component 20 to the power input terminal 80, and a single chip computer 50 (also called a microcontroller) connected to the first switch 30 and capable of controlling the first switch 30.

[0045] The power supply can be an AC voltage of 100V-240V. The single-chip computer 50 can control the conduction time of the first switch 30, thereby changing the conduction time of the power input terminal 80 and the evaporation component 20. In this way, whether the power input to the garment steamer 100 is a high voltage (such as 220V) or a low voltage (such as 110V), the evaporation component 20 can be adapted for use, and the adaptability is good. Without the need for additional user operations, the garment steamer 100 can work stably.

[0046] In one embodiment, the single chip microcomputer 50 is connected to the power input terminal 80; the single chip microcomputer 50 can detect the input voltage of the power input terminal 80 and adjust the conduction time of the first switch 30 according to the input voltage, wherein the input voltage is inversely correlated with the conduction time.

[0047] For example, when the garment steamer 100 is connected to a first voltage such as 220V, the single chip microcomputer 50 controls the on-time of the first switch 30 to be a first time. When the garment steamer 100 is connected to a second voltage such as 110V, the single chip microcomputer 50 controls the on-time of the first switch 30 to be a second time, which is greater than the first time.

[0048] For example, the single-chip microcomputer 50 can send a pulse signal such as a PWM signal to control the on-time of the first switch 30, the first time can account for 50% of a cycle, and the second time can account for 100% of a cycle. Specifically, when the garment steamer 100 is connected to a 220V voltage, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle of 50%, that is, the first switch 30 is turned on for half of the time, thereby reducing the working time of the evaporation component 20. When the garment steamer 100 is connected to a 110V voltage, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle of 100%, that is, the first switch 30 is always turned on.

[0049] In one embodiment, the power input terminal 80 is a plug. The first switch 30 is in an off state by default, and the first switch 30 can be turned on only when the single chip microcomputer 50 inputs an electrical signal.

[0050] The evaporation assembly 20 may include a heating element 21, which may be made of metal, such as aluminum, aluminum alloy, copper, copper alloy, or magnesium oxide, etc. The heating element 21 may be die-cast in the evaporation chamber 24. The heating element may be a heating coil.

[0051] The heating element 21 includes a first portion 212 and a second portion 214, and the evaporation assembly 20 also includes an evaporation chamber 24 communicated with the water tank 14, a first cover 23 covering a first side of the evaporation chamber 24, a first receiving member 241 disposed in the evaporation chamber 24 and receiving the first portion 212, a second receiving member 242 disposed in the evaporation chamber 24 and receiving the second portion 214, a second cover 25 covering a second side of the evaporation chamber 24, and a back cover 27 connected to the evaporation chamber 24. The first portion 212 and the second portion 214 of the heating element 21 can be die-cast in the evaporation chamber 24, and sealed in the first receiving member 241 and the second receiving member 242, respectively.

[0052] The first portion 212 and the second portion 214 of the heating element 21 are accommodated in the evaporation chamber 24 to heat the water in the evaporation chamber 24. The evaporation chamber 24, the first receiving member 241, the second receiving member 242, and the first cover 23 together form a first sub-evaporation chamber 2401. The evaporation chamber 24, the first receiving member 241, the second receiving member 242, and the second cover 25 together form a second sub-evaporation chamber 2402 connected to the first sub-evaporation chamber 2401.

[0053] The first cover 23 includes an inlet 231 and a first through hole 232 connected to the water tank 14, and the first through hole 232 connects the inlet 231 and the first sub-evaporation chamber 2401. The second cover 25 is provided with a plurality of second through holes 251 and a plurality of third through holes 252 connected to the second sub-evaporation chamber 2402, and the steam generated in the evaporation chamber 24 flows out through the third through holes 252. The plurality of third through holes 252 are arranged in a straight line, and the second through holes 251 are arranged around the third through holes 252 or are arranged on both sides of the third through holes 252.

[0054] The evaporation chamber 24 includes a side wall 2403 and a middle wall 2404. The middle wall 2404 is provided with at least one fourth through hole 2405. The fourth through hole 2405 connects the first sub-evaporation chamber 2401 with the second sub-evaporation chamber 2402. The fourth through hole 2405 may be provided in the middle portion of the middle wall 2404. The side wall 2403, the middle wall 2404, the first receiving member 241, the second receiving member 242 and the first cover 23 together form the first sub-evaporation chamber 2401. The side wall 2403, the middle wall 2404, the first receiving member 241, the second receiving member 242 and the second cover 25 together form the second sub-evaporation chamber 2402. In one embodiment, the first receiving member 241 and the second receiving member 242 protrude from both sides of the middle wall 2404, respectively.

[0055] A plurality of first guide portions 243 are disposed in the first sub-evaporation chamber 2401, and the first guide portions 243 together form at least one first water flow channel. A plurality of second guide portions 246 are disposed in the second sub-evaporation chamber 2402, and the second guide portions 246 together form at least one second water flow channel. In one embodiment, the first water flow channels are symmetrically arranged, and the second water flow channels may also be symmetrically arranged.

[0056] The side wall 2403 is provided with a first connecting plate 244 and a second connecting plate 245, and the first connecting plate 244 and the second connecting plate 245 extend toward each other. The first connecting plate 244 is provided with two first connecting portions 2441, and the second connecting plate 245 is provided with two second connecting portions 2451. The heating element 21 includes two connecting terminals 211 that can be electrically connected to the first switch 30. The connecting terminals 211 are accommodated in the first connecting portions 2441 and connected to the first switch 30.

[0057] The first portion 212 and the second portion 214 of the heating element 21 are generally annular, elliptical, square, hexagonal, triangular or irregular in shape. The two connecting ends 211 of the heating element 21 are separated from each other and extend toward the first connecting portion 2441 .

[0058] The side wall 2403 includes a first step 2406 and a second step 2407, and the first step 2406 and the second step 2407 are arranged along the inner surface of the side wall 2403. The first cover 23 is arranged on the first step 2406, and the second cover 25 is arranged on the second step 2407. The first cover 23 is provided with a notch 233 and a notch 234, and the first connecting plate 244 and the second connecting plate 245 are respectively accommodated in the notch 233 and the notch 234.

[0059] The evaporation assembly 20 further includes a plurality of positioning portions 247, which may be positioning rods or positioning columns. The plurality of positioning portions 247 are disposed on the second guide portion 246, the middle wall 2404, the first receiving member 241, and the second receiving member 242. In one embodiment, the positioning portion 247 is accommodated in the second through hole 251 of the second cover 25, and at least one positioning portion 247 does not completely fill the corresponding second through hole 251, that is, there is a gap between the outer wall of at least one positioning portion 247 and the inner wall of the corresponding second through hole 251, and the steam generated in the first sub-evaporation chamber 2401 and the second sub-evaporation chamber 2402 can flow through the gap. In another embodiment, the positioning portion 247 is accommodated in the second through hole 251 of the second cover 25, and the positioning portion 247 completely fills the second through hole 251, preventing the steam generated in the first sub-evaporation chamber 2401 and the second sub-evaporation chamber 2402 from flowing out through the second through hole 251. In another embodiment, some positioning portions 247 are accommodated in the second through holes 251, and some positioning portions 247 are accommodated in the third through holes 252. The second through holes 251 are completely filled or not completely filled with the positioning portions 247, and the third through holes 252 are not completely filled with the positioning portions 247. The steam generated in the first sub-evaporation chamber and the second sub-evaporation chamber can flow through the third through holes 252.

[0060] The evaporation assembly 20 further includes an outer cover 26, which is provided with a plurality of first outlets 261 and second outlets 262. In one embodiment, the diameter of the first outlet 261 is about 10-20 mm, and the diameter of the second outlet 262 is about 40-80 mm. Several third through holes 252 in the middle portion of the second cover 25 correspond to the second outlets 262, and the remaining third through holes 252 correspond to the respective first outlets 261. Specifically, three third through holes 252 in the middle portion of the second cover 25 correspond to the second outlets 262, and the remaining third through holes 252 correspond to the respective first outlets 261. In one embodiment, the third through hole 252 has the same diameter as the second through hole 251, the positioning portion 247 includes a plurality of first positioning portions and a plurality of second positioning portions, the first positioning portion is accommodated in the corresponding second through hole 251, and the cover 25 is connected to the evaporation chamber 24, the size of the first positioning portion is equal to the size of the second through hole 251 or slightly smaller than the size of the second through hole 251, the second through hole 251 is filled with the corresponding first positioning portion, or there is a small first gap between the first positioning portion and the inner wall of the second through hole 251, and the steam generated by the first sub-evaporation chamber and the second sub-evaporation chamber can flow out through the first gap, the size of the first positioning portion can also be slightly larger than the size of the second through hole 251, and the first positioning portion is interference-fitted with the second through hole 251. The size of the second positioning portion is smaller than the size of the third through hole 252, the second positioning portion is accommodated in the corresponding third through hole 252, and a second gap is formed between the second positioning portion and the inner wall of the third through hole 252, and the steam generated by the first sub-evaporation chamber and the second sub-evaporation chamber can flow out through the second gap.

[0061] In one embodiment, the single chip microcomputer 50 (also called a microcontroller) can be connected to a water pump 60, which is equipped with a motor. The single chip microcomputer 50 can control the pumping speed of the water pump 60 to adjust the steam output. The water pump 60 has a relatively low power, about 1-10w. The low-power water pump 60 is small in size and suitable for the handheld garment steamer 100.

[0062] In one embodiment, the evaporation component 20 further includes a temperature sensor 22. The heating element 21 is used to heat the water in the evaporation component 20 to generate steam. The temperature sensor 22 is disposed adjacent to the heating element 21 and is capable of detecting the temperature of the heating element 21. The single-chip computer 50 is connected to the temperature sensor 22 and adjusts the on-time of the first switch 30 according to the temperature detected by the temperature sensor 22 and the input voltage of the power input terminal 80. The temperature is inversely correlated with the on-time. The temperature sensor 22 may be disposed adjacent to the heating element 21, or may be located in an area close to the heating element 21 without contacting the heating element 21, or may be connected to the heating element through a heat-conducting structure. The heat-conducting structure may be a material with good heat conductivity, such as metal or water.

[0063] The single chip microcomputer 50 can obtain the temperature of the heating element 21 through the temperature sensor 22, and adjust the on-time of the first switch 30 according to the temperature and the input voltage of the power input terminal 80. It can be understood that when the temperature of the heating element 21 of the evaporation component 20 is too high, the on-time of the first switch 30 can be reduced, thereby reducing the power of the heating element 21, thereby reducing the temperature of the heating element 21 or reducing the heating of the heating element 21.

[0064] For example, the single-chip microcomputer 50 can send a pulse signal such as a PWM signal to control the conduction time of the first switch 30. When the garment steamer 100 is connected to a 220V voltage and the temperature is within a normal range, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle of 50%. When the garment steamer 100 is connected to a 220V voltage and the temperature is too high, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle less than 50%, such as a PWM signal with a duty cycle of 40%, thereby reducing the working time of the evaporation component 20. When the garment steamer 100 is connected to a 110V voltage and the temperature is within a normal range, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle of 100%. When the garment steamer 100 is connected to a 110V voltage and the temperature is too high, the single-chip microcomputer 50 controls the sending of a PWM signal with a duty cycle less than 100%, such as a PWM signal with a duty cycle of 90%, thereby reducing the working time of the evaporation component 20. In one embodiment, when the temperature exceeds the first preset temperature, the single chip microcomputer 50 controls the first switch 30 to be disconnected, so that the heating element 21 is disconnected from the power supply. When the temperature of the heating element 21 is too high, the single chip microcomputer 50 can control the first switch 30 to be disconnected, that is, the heating element 21 is disconnected from the power supply, so that the heating element 21 cannot work, and the heating element 21 is prevented from burning out.

[0065] In one embodiment, the single-chip microcomputer 50 can adjust the conduction time of the first switch 30 so that the temperature of the heating element 21 is within a preset range. Specifically, when the temperature sensor 22 detects that the temperature is low, such as lower than the second preset temperature, the single-chip microcomputer 50 can increase the conduction time of the first switch 30, thereby increasing the temperature of the heating element 21, so that the temperature of the heating element 21 is maintained within a reasonable range. When the temperature sensor 22 detects that the temperature is high, such as higher than the third preset temperature, the single-chip microcomputer 50 can reduce the conduction time of the first switch 30, thereby reducing the temperature of the heating element 21, so that the temperature of the heating element 21 is maintained within a reasonable range. Among them, the third preset temperature is greater than the second preset temperature, and the third preset temperature is less than the first preset temperature. The first preset temperature, the second preset temperature and the fourth preset temperature can be set as needed, and the specific temperature values ​​of the first preset temperature, the second preset temperature and the fourth preset temperature are not limited in this embodiment.

[0066] In some examples, the garment steamer 100 further includes a fuse 83, which is connected to the circuit of the heating element 21, and it can also be understood that the fuse 83 and the heating element 21 are connected in series in the circuit. When the circuit is abnormal, the fuse 83 protects the circuit. For example, the fuse 83 is a fusible fuse, and when the circuit is abnormal, the fusible fuse blows, thereby opening the circuit, and the heating element 21 cannot work normally, thereby preventing dangers such as fire.

[0067] The first switch 30 may be a bidirectional thyristor, which is small in size and has advantages in controlling small power loads. Of course, the first switch 30 may also be other types of switches. This embodiment does not limit the type of the first switch.

[0068] In one embodiment, the garment steamer 100 further includes a step-down module 70 electrically connected to the single-chip microcomputer 50. The step-down module 70 is connected between the power input terminal 80 and the single-chip microcomputer 50. The step-down module 70 is used to reduce the input voltage between 100V and 240V (such as an input voltage of 220V or 110V) to an operating voltage suitable for the single-chip microcomputer 50. The step-down module 70 can be an AC-DC step-down transformer. In one embodiment, the step-down module 70 can be integrated in the PCB board 40. In another embodiment, the step-down module 70 and the PCB board 40 are two independent components, and the step-down module 70 is arranged on the PCB board 40 and electrically connected to the PCB board 40.

[0069] Optionally, the step-down module 70 is a transformer, which can separate high voltage from low voltage. The transformer can step down the input voltage of the power input terminal 80 to a working voltage suitable for the single-chip microcomputer 50. In this embodiment, the step-down module 70 only steps down the input power of the power input terminal 80 to a working voltage suitable for the single-chip microcomputer 50.

[0070] Optionally, the step-down module 70 is a RC step-down circuit. Since the power of the RC circuit is relatively small, the voltage provided by it can only drive the single-chip microcomputer 50 to work, but cannot drive the water pump 60 to work. In this embodiment, the step-down module 70 steps down the input voltage of the power input terminal 80 to a working voltage suitable for the single-chip microcomputer 50 to work.

[0071] In one embodiment, if Fig.13 As shown, the water pump 60 can be connected to the power input terminal 80, that is, the water pump 60 can use the input voltage between 100V and 240V provided by the power supply (such as 110V voltage or 220V voltage). The water pump 60 can be an electromagnetic pump driven by high-voltage AC power. The water pump 60 can be directly powered by high voltage. Compared with the water pump powered by low-voltage DC, there is no need for the step-down module 70 to power it. The step-down module 70 only needs to power low-power devices such as the single-chip microcomputer 50, and the volume of the step-down module 70 can be reduced and the cost can also be reduced. For example, the power of the step-down module 70 can be less than 1w.

[0072] The garment steamer 100 further includes a second switch 92, which is connected to the water pump 60 and controls the on and off of the water pump 60. The single-chip microcomputer 50 is connected to the second switch 92 and controls the on time of the second switch 92 to adjust the water supply of the water pump 60. The single-chip microcomputer 50 can also control the water supply of the water pump 60 by the on time of the second switch 92.

[0073] The second switch is connected between the water pump 60 and the power input terminal 80, and the control terminal of the second switch 92 is connected to the single chip microcomputer 50. The single chip microcomputer 50 can control the second switch 92 to be turned on or off, thereby controlling the water pump 60 to work or not work.

[0074] In one embodiment, when the temperature detected by the temperature sensor 22 reaches a fourth preset temperature, the single chip microcomputer 50 can also control the second switch 92 to be turned on, so that the water pump 60 delivers the water in the water tank to the evaporation component 20. When the temperature does not reach the fourth preset temperature, the single chip microcomputer 50 can also control the second switch 92 to be turned off, and the water pump 60 cannot work at this time.

[0075] The second switch may include a control switch, which may be a thyristor. The thyristor is small in size and has advantages in controlling low-power loads. Of course, the control switch may also be other types of switches, such as a field effect transistor. This embodiment does not limit the type of the control switch.

[0076] In one embodiment, the garment steamer 100 can control the power of the water pump by setting a preset time through the single chip computer 50. In one embodiment, the power of the water pump can include the operating frequency of the water pump 60 or the amount of water output of the water pump 60. Exemplarily, the preset time is 20 seconds.

[0077] The garment steamer 100 further includes a housing 10, a switch 124 disposed on the housing 10, a display panel 126 disposed on the housing 10, at least one button 127 disposed on the display panel 126, a PCB board 40, a fuse 83, and a plug 123 electrically connected to the PCB board 40. The water tank 14 may be partially exposed from the housing 10.

[0078] The housing 10 includes a first sub-housing 11 , a second sub-housing 12 connected to the first sub-housing 11 , and a third sub-housing 13 . The third sub-housing 13 accommodates a relay, a PCB board 40 , a single chip microcomputer 50 , and a partial structure of the evaporation component 20 .

[0079] The first sub-shell 11 includes a support portion 111 for supporting the water tank 14, a receiving portion 112 for receiving part of the water tank 14, and a first mounting portion 113. The second sub-shell 12 is provided with a fifth through hole 1201 for revealing the switch 124, and a sixth through hole 1203 for the power line 122 to pass through, and the plug 123 is connected to the power line 122. The garment steamer 100 is connected to the power supply through the power line 122 and the plug 123. The second sub-shell 12 also includes a second mounting portion 1204, and the water pump 60 is mounted on the first mounting portion 113 and the second mounting portion 1204.

[0080] The third sub-housing 13 includes a first accommodating chamber 130, a seventh through hole 131, a second accommodating chamber 132 communicating with the first accommodating chamber 130 through the seventh through hole 131, an eighth through hole 133, and a passage 134 communicating with the second accommodating chamber 132 through the eighth through hole 133. The first accommodating chamber 130 accommodates a portion of the structure of the evaporation assembly 20. The second accommodating chamber 132 accommodates a relay, a PCB board 40, and a single-chip microcomputer 50. The second connecting pipe 144 passes through the passage 134, the second accommodating chamber 132, and the first accommodating chamber 130 to communicate with the evaporation chamber 24.

[0081] See also Fig.14 , which is another operation circuit diagram of the hanging ironing machine 100. It can be explained that in this embodiment, the housing 10, the water tank 14, the evaporation component 20, the first switch 30, the single-chip microcomputer 50, the water pump 60, and the voltage reduction module 70 are the same as those in the previous embodiment, and are not repeated here. The difference is that in this embodiment, the water pump 60 can be connected to the output end of the voltage reduction module 70, that is, the water pump 60 can use the voltage provided by the voltage reduction module 70. The voltage reduction module 70 is used to reduce the input voltage of 220V or 110V to an operating voltage suitable for the single-chip microcomputer 50 and the water pump 60. At this time, the water pump 60 uses low-voltage direct current to work.

[0082] The garment steamer 100 further includes a second switch 92, which is connected between the water pump 60 and the power input terminal 80, and the control end of the second switch 92 is connected to the single-chip microcomputer 50. The single-chip microcomputer 50 can control the second switch 92 to be turned on or off, thereby controlling the water pump 60 to work or not work. The second switch 92 may include a control switch, which may be a thyristor, which has a small size and has advantages in controlling low-power loads. Of course, the control switch may also be other types of switches, such as a field effect transistor. This embodiment does not limit the type of the control switch.

[0083] In one embodiment, when the temperature detected by the temperature sensor 22 reaches a fourth preset temperature, the single chip microcomputer 50 can also control the second switch 92 to be turned on, so that the water pump 60 delivers the water in the water tank to the evaporation component 20. When the temperature does not reach the fourth preset temperature, the single chip microcomputer 50 can also control the second switch 92 to be turned off, and the water pump 60 cannot work at this time.

[0084] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hanging ironing machine, characterized in that: include: Water tank, used to store water; an evaporation component, connected to the water tank and used to generate steam; A water pump, used for conveying water in the water tank to the evaporation component; A power input terminal, used for inputting power; A first switch connected between the power input terminal and the evaporation component; The single chip microcomputer is connected to the first switch and controls the conduction time of the first switch.

2. The garment steamer according to claim 1, characterized in that: The single chip microcomputer is connected to the power input terminal; the single chip microcomputer can detect the input voltage of the power input terminal and adjust the conduction time of the first switch according to the input voltage. The higher the input voltage is, the shorter the conduction time is.

3. The garment steamer according to claim 2, characterized in that: The evaporation assembly includes a heating element and a temperature sensor, wherein the temperature sensor is disposed adjacent to the heating element and is capable of detecting the temperature of the heating element; The single chip microcomputer is connected to the temperature sensor and adjusts the on-time of the first switch according to the temperature detected by the temperature sensor and the input voltage of the power input terminal, and the temperature is inversely correlated with the on-time.

4. The garment steamer according to claim 3, characterized in that: When the temperature exceeds a first preset temperature, the single chip microcomputer controls the first switch to be disconnected, so as to disconnect the heating element from the power supply.

5. The garment steamer according to claim 3, characterized in that: When the temperature is lower than a second preset temperature, the single chip microcomputer increases the on-time of the first switch so that the temperature of the heating element is within a preset range; When the temperature is higher than a third preset temperature, the single chip microcomputer reduces the on-time of the first switch so that the temperature of the heating element is within a preset range, and the third preset temperature is greater than the second preset temperature.

6. The garment steamer according to claim 1, characterized in that: The first switch is a bidirectional thyristor.

7. The garment steamer according to claim 1, characterized in that: It also includes a second switch, which is connected to the water pump and controls the on and off of the water pump. The single-chip microcomputer is connected to the second switch and controls the on time of the second switch to adjust the water supply of the water pump.

8. The garment steamer according to claim 7, characterized in that: The evaporation assembly includes a heating element and a temperature sensor, wherein the temperature sensor is disposed adjacent to the heating element and is capable of detecting the temperature of the heating element; The single chip microcomputer is connected to the temperature sensor. When the temperature reaches a fourth preset temperature, the single chip microcomputer controls the second switch to be turned on, so that the water pump delivers water in the water tank to the evaporation component.

9. The garment steamer according to claim 1, characterized in that: Also includes: The step-down module is connected between the power input terminal and the single-chip microcomputer, and the step-down module steps down the input power of the power input terminal to a working voltage suitable for the single-chip microcomputer.

10. The garment steamer according to claim 9, characterized in that: The step-down module is connected to the water pump, and the step-down module steps down the input power of the power input end to an operating voltage suitable for the water pump.

Images