Garment steamer

By incorporating a combination of Laval nozzles and UVC germicidal lamps into the garment steamer, the problem of traditional garment steamers being unable to remove oil stains and yellow stains has been solved, achieving a multi-functional effect of efficient ironing, stain removal, and sterilization, which meets the requirements of energy conservation and emission reduction.

CN223907211UActive Publication Date: 2026-02-13GREE (CHENGDU) ELECTRIC APPLIANCES CO LTD +1
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Patent Information

Application Number
CN202520008501.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-02-13
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Traditional garment steamers are ineffective at removing oil stains and yellow stains from clothes, affecting their appearance, and they also have limited functionality.

Method used

It uses a Laval nozzle connected to a steam generator to generate cavitation bubbles using the principle of steam acceleration, combined with a UVC germicidal lamp to achieve efficient decontamination and sterilization.

Benefits of technology

It achieves ironing and stain removal of clothing, has a significant sterilization effect, saves energy and reduces emissions, and has a simple structure suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of garment steamers, in particular to a garment steamer. The garment steamer comprises a garment steamer body, a steam generation assembly and an ironing head, the steam generation assembly is arranged in the garment steamer body and connected with a Laval spray pipe, steam generated by the steam generation assembly is output through the Laval spray pipe, the ironing head is provided with a steam outlet, the steam outlet is connected with the Laval spray pipe, and the Laval spray pipe is connected with the steam generation assembly. According to the garment steamer, the wrinkle state of clothes can be improved, stains on the clothes can be effectively removed, and the garment steamer has the advantages of being simple in structure and good in decontamination effect.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a garment steamer technical field, concretely relates to a garment steamer. BACKGROUND

[0002] In the 21st century, technology develops rapidly, and garment steamer has begun to enter the homes of thousands of users, and the traditional garment steamer only heats water to produce steam, thereby changing the wrinkle state of clothes, but in the face of high oil stains and yellow stains of clothes, the conventional garment steamer often cannot complete the work well, and the residual oil stains and yellow stains will be adsorbed on the surface of clothes for years, affecting the appearance, so the function of the current garment steamer still has limitations. SUMMARY

[0003] The utility model discloses a garment steamer which can not only improve the wrinkle state of clothes but also effectively remove stains from clothes, has the advantages of simple structure and good stain removal effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] Provided is a garment steamer, comprising:

[0006] a garment steaming body,

[0007] a steam generating assembly arranged in the garment steaming body and connected with a Laval nozzle, steam generated by the steam generating assembly being output through the Laval nozzle,

[0008] After the garment steamer is powered on and water is added, the steam generating assembly used by the garment steamer vaporizes normal temperature water into high temperature water, generally above 98 degrees, high pressure steam, and releases the hot steam through the Laval nozzle,

[0009] an ironing head provided with a steam outlet, the steam outlet being connected with the Laval nozzle, and the Laval nozzle being close to the steam outlet.

[0010] Since the Laval nozzle is close to the steam outlet, the steam outlet is arranged on the ironing head, so that the hot steam output by the ironing head is the hot steam output by the Laval nozzle, and the use of the Laval nozzle connected with the steam generating assembly makes the steam generated by the steam generating assembly first pass through the Laval nozzle and then be transmitted to the clothes to be ironed, the steam utilizes the acceleration principle of the Laval nozzle, when the steam flow passes through the pipeline with small cross-sectional area, the steam flow is accelerated, and in the sealed pipeline, the saturated steam pressure of water is constant, according to the Bernoulli principle, the greater the flow velocity, the smaller the pressure, when the pressure is less than the saturated steam pressure of water, cavitation bubbles are generated in the high-speed steam flow, the cavitation bubbles collide and burst on the surface of the clothes, and then the cleaning effect is generated, so that the garment steamer not only has the ironing effect, but also can effectively remove stains, and the efficiency of the garment steamer is increased. The efficient cavitation bubble cleaning technology can achieve the cleaning effect with only half of the water, which meets the requirements of energy saving and emission reduction. The garment steamer has simple structure and is suitable for large-scale production and application.

[0011] In some embodiments, the ironing head comprises a limiting nozzle, the limiting nozzle contacts the clothes to be ironed, the limiting nozzle is communicated with the steam outlet, and an inner side wall surface of the limiting nozzle is provided with a UVC sterilization lamp, and the UVC sterilization lamp faces the clothes to be ironed.

[0012] Since the limiting nozzle is arranged at the steam outlet, the limiting nozzle provides a mounting position for the UVC sterilization lamp, the UVC sterilization lamp increases the UVC sterilization effect on the clothes during the ironing process, and the killed bacteria can flow away with the water vapor, so that the sterilization and cleaning effect is realized.

[0013] In some embodiments, the garment steamer body comprises a main machine shell, the steam generating assembly and the Laval nozzle are arranged in the main machine shell, the ironing head is arranged at an end of the main machine shell, and a handle is arranged at a bottom of the main machine shell.

[0014] The main machine shell provides a mounting position for the steam generating assembly, and the handle at the bottom of the main machine shell facilitates holding the entire garment steamer.

[0015] In some embodiments, the handle comprises a first handle and a second handle, and the first handle is arranged side by side with the second handle.

[0016] The first handle and the second handle facilitate holding the garment steamer with both hands, so that the ironing operation can be quickly and stably performed.

[0017] In some embodiments, a water receiving box is arranged in the main machine shell, and the water receiving box is connected with the steam generating assembly.

[0018] The water receiving box can provide sufficient water, which can not only generate sufficient hot steam for ironing, but also provide sufficient water flow for the Laval nozzle when needed to achieve the cleaning effect, thereby further achieving the cleaning effect of the garment steamer.

[0019] In some embodiments, a steam guide pipe is further included, and an inner portion of the steam guide pipe constitutes the configuration of the Laval nozzle.

[0020] Generally, the steam guide pipe is connected to the steam generating assembly, and therefore, the Laval nozzle is directly constituted in the steam guide pipe, which makes the whole assembly more convenient and simple, and the Laval nozzle is not easily damaged.

[0021] In some embodiments, the Laval nozzle includes a middle narrowed pipe section, two ends of the middle narrowed pipe section are respectively a first pipe section and a second pipe section, the first pipe section is connected to the steam generating assembly, the second pipe section is connected to the steam outlet, and the length of the second pipe section is greater than the length of the first pipe section.

[0022] Since the length of the second pipe section connected to the steam outlet is greater than the length of the first pipe section, the second pipe section generates more cavitation bubbles through the middle narrowed pipe section, and therefore, more cavitation bubbles can be obtained to ensure the cleaning effect.

[0023] In some embodiments, the length of the middle narrowed pipe section is 1 / 10 of the length of the second pipe section.

[0024] The length of the middle narrowed pipe section is much smaller than the length of the second pipe section, which ensures that the fluid can quickly enter the second pipe section after being discharged from the middle narrowed pipe section, and avoids the fluid from being slowed down in the middle narrowed pipe section due to the excessive length of the middle narrowed pipe section.

[0025] The garment steamer has the following beneficial effects:

[0026] (1) The garment steamer of the utility model is connected with the steam generating assembly through the Laval nozzle, so that the steam generated by the steam generating assembly is first transmitted to the clothes to be ironed through the Laval nozzle. The steam utilizes the acceleration principle of the Laval nozzle, and when the steam flow passes through the pipeline with a small cross-sectional area, the steam flow is accelerated. According to the Bernoulli principle, the pressure of the fluid is smaller when the fluid speed is greater. When the pressure is smaller than the saturated steam pressure of water, cavitation bubbles are generated in the high-speed steam flow. The cavitation bubbles collide and burst on the surface of the clothes, thereby achieving the cleaning effect. The garment steamer not only has the ironing effect, but also can effectively remove stains, thereby increasing the efficiency of the garment steamer.

[0027] (2) The garment steamer of the utility model utilizes the efficient cavitation bubble cleaning technology, and only half of the water is needed to achieve the cleaning effect, which meets the energy saving and emission reduction requirements.

[0028] (3) The garment steamer has simple structure and is suitable for large-scale production and application.

[0029] To achieve the second purpose of the above-mentioned utility model, the following technical scheme is provided:

[0030] A method for garment steaming is provided, including the following steps:

[0031] The garment steamer is started to make the steam generating assembly generate hot steam, the hot steam is transmitted to the steam outlet of the steaming head through the Laval nozzle, when the hot steam flows through the narrowed pipe section of the Laval nozzle, the hot steam accelerates, when the hot steam flows out of the narrowed pipe section, the hot steam is air-bubbled and collides onto the garment.

[0032] A method for garment steaming is provided, including the following steps: The garment steamer is started to make the steam generating assembly generate hot steam, the hot steam is transmitted to the steam outlet of the steaming head through the Laval nozzle, when the hot steam flows through the narrowed pipe section of the Laval nozzle, the hot steam accelerates, when the hot steam flows out of the narrowed pipe section, the hot steam is air-bubbled and collides onto the garment, and meanwhile the UVC sterilization lamp irradiates the garment. BRIEF DESCRIPTION OF DRAWINGS

[0033] Fig. 1 is a structure schematic view of the garment steamer of the utility model embodiment.

[0034] Fig. 2 is a structure schematic view of the Laval nozzle of the utility model embodiment.

[0035] Fig. 3 is a structure schematic view of the air bubble generation of the Laval nozzle of the utility model embodiment.

[0036] REFERENCE NUMERALS

[0037] 1, garment steamer body; 2, Laval nozzle; 3, steaming head; 4, steam outlet; 5, limiting nozzle; 6, UVC sterilization lamp; 7, first handle; 8, second handle; 9, water receiving box; 10, steam guide pipe; 11, middle narrowed pipe section; 12, first pipe section; 13, second pipe section. DETAILED DESCRIPTION

[0038] The preferred embodiments of the utility model will be described in more detail below with reference to the drawings. Although the preferred embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.

[0039] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0040] It should be understood that, although the terms "first," "second," "third," etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. Therefore, the features defined with "first," "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0041] Embodiment 1

[0042] The steamer disclosed in the present embodiment comprises, as shown in the drawings, a steamer body 1, a steam generating assembly provided in the steamer body 1 and connected with a Laval nozzle 2, and a steam outlet 4. Figs. 1-3

[0043] The steamer body 1,

[0044] The steam generating assembly provided in the steamer body 1 and connected with the Laval nozzle 2 generates steam, which is output through the Laval nozzle 2.

[0045] After the steamer is powered on and water is added, the steam generating assembly of the steamer vaporizes normal temperature water into high temperature water, generally above 98 degrees, and releases the hot water vapor through the Laval nozzle 2.

[0046] The ironing head 3 is provided with a steam outlet 4, the steam outlet 4 is connected with the Laval nozzle 2, and the Laval nozzle 2 is close to the steam outlet 4.

[0047] ​Because the Laval nozzle 2 is close to the steam outlet 4, the steam outlet 4 is arranged on the ironing head 3, so that the hot steam output by the ironing head 3 is the hot steam output by the Laval nozzle 2, and the use of the Laval nozzle 2 connected with the steam generating assembly makes the steam generated by the steam generating assembly first pass through the Laval nozzle 2 and then be transmitted to the clothes to be ironed, the steam uses the acceleration principle of the Laval nozzle 2, when the steam flow passes through the pipeline with small cross-sectional area, the steam flow is accumulated and accelerated, and in the sealed pipeline, the saturated steam pressure of water is constant, according to the Bernoulli principle, the greater the flow velocity, the smaller the pressure, when the pressure is less than the saturated steam pressure of water, the cavitation bubble is generated in the high-speed steam flow, the cavitation bubble collides and explodes on the surface of the clothes, and then the cleaning effect is generated, so that the garment steamer not only has the ironing effect, but also can effectively remove stains, and the efficiency of the garment steamer is increased. The efficient cavitation bubble cleaning technology can achieve the cleaning effect with half of the water, which meets the energy saving and emission reduction requirements. The garment steamer has simple structure and is suitable for large-scale production and application.

[0048] The Laval nozzle 2 is used to improve the liquid thrust, the front half of the nozzle is contracted to a narrow throat from large to small to the middle, and then expanded to the arrow bottom from small to large. The liquid in the pipe flows into the front half of the nozzle under high pressure, and then escapes from the rear half after passing through the narrow throat, so that the velocity of the liquid flow changes due to the change of the jet cross-sectional area, and the liquid slowly accelerates. When applied to the garment steamer, the steam flow can be accelerated to provide favorable environmental conditions for creating cavitation bubbles. Cavitation bubbles are generated during the vaporization process. When the pressure in the fluid is lower than the critical value of the gaseous state of the saturated steam pressure, the balance of the gas-liquid exchange is broken, and the water in the fluid will vaporize to form bubbles. These bubbles travel with the fluid, and cavitation bubbles are generated according to the cavitation phenomenon. The cavitation bubble has the characteristic that when it breaks, it will generate a great pulse pressure, which can wash away the oil stains and marks on the clothes through the impact force, and has a good effect on the cleaning of the clothes.

[0049] In the embodiment, the ironing head 3 comprises a limiting nozzle 5, the limiting nozzle 5 contacts the clothes to be ironed, the limiting nozzle 5 is communicated with the steam outlet 4, and the inner side wall surface of the limiting nozzle 5 is provided with a UVC sterilization lamp 6, and the UVC sterilization lamp 6 faces the clothes to be ironed.

[0050] Because the limiting nozzle 5 is arranged at the steam outlet 4, the limiting nozzle 5 can provide a mounting position for the UVC sterilization lamp 6, the UVC sterilization lamp 6 can increase the UVC sterilization effect on the clothes during the ironing process, so that the killed bacteria can flow away with the water vapor, and the sterilization and cleaning effect is realized.

[0051] The UVC sterilization lamp 6 is a device that uses short-wave ultraviolet light (wavelength 200-280 nanometers) for sterilization. Its working principle is to destroy the DNA or RNA of bacteria, viruses and other microorganisms by emitting UVC light, thereby achieving sterilization effect. By adding the UVC sterilization lamp 6 to the garment steamer, the UVC sterilization function can be added during the process of ironing clothes. UVC light can penetrate the cell wall of microorganisms and directly destroy their genetic material, making them unable to reproduce and survive. Studies have shown that UVC light waves can achieve a sterilization efficiency of up to 99.9% in a short time. Therefore, during the ironing process, the UVC sterilization lamp 6 can kill bacteria on the clothes, and as the water vapor is released, the bacteria can also be taken away, achieving the effect of sterilization and cleaning. By installing the UVC sterilization lamp 6 in the limiting shell nozzle 5, it can protect the user from direct irradiation and ensure the sterilization effect, and the limiting nozzle shell can guide the ultraviolet light.

[0052] The garment steamer is equipped with a UVC sterilization function, which synchronously sterilizes during the cleaning process to achieve comprehensive cleaning and create a sterile environment. The UVC sterilization function is turned on simultaneously during the rinsing process to achieve "cleaning while disinfecting", providing strong protection for clothing hygiene.

[0053] At the same time that the cavitation bubbles are in action, the UVC sterilization lamp 6 installed inside the garment steamer is turned on simultaneously, inactivating bacteria and viruses while using the strong fluid in the cavitation bubbles to take them away, thereby achieving the special effect of "cleaning while disinfecting". This further diversifies the functions of the garment steamer.

[0054] In this embodiment, the garment steamer body 1 includes a main shell, the steam generation assembly is arranged in the main shell, the ironing head 3 is arranged at the end of the main shell, and a handle is arranged at the bottom of the main shell.

[0055] The main shell provides a mounting position for the steam generation assembly, and the handle at the bottom of the main shell facilitates holding the entire garment steamer later.

[0056] Specifically,

[0057] The main body of the garment steamer is usually made of plastic or metal and is used to accommodate the steam generation assembly and other electronic components.

[0058] The steam generation assembly is located in the main shell and is responsible for heating water and converting it into steam.

[0059] The ironing head 3 is located at the end of the main shell and is the front end of the garment steamer, through which the user directly irons the clothes. The ironing head 3 is provided with a steam outlet 4, through which steam is sprayed.

[0060] The handle is located at the bottom of the main housing, designed for users to hold the steamer. The presence of the handle makes the steamer more convenient to operate and move, especially in situations where the steamer needs to be moved frequently while ironing clothes.

[0061] This design not only makes the steamer functional, but also user-friendly. The integrated design of the steam generation assembly ensures the compactness and portability of the steamer.

[0062] In this embodiment, the handle includes a first handle 7 and a second handle 8, which are arranged side by side.

[0063] The first handle 7 and the second handle 8 facilitate holding the steamer with both hands, allowing for quick and stable ironing operations. Using both hands to hold the steamer allows for more even distribution of the weight of the steamer, reducing fatigue when operating with one hand.

[0064] The design of the double handle allows users to operate the steamer more quickly and stably when ironing clothes. Stability is crucial for ironing results, especially when ironing delicate fabrics or requiring precise operations.

[0065] In this embodiment, a water receiving box 9 is provided inside the main housing, which is connected to the steam generation assembly.

[0066] The water receiving box 9 can provide sufficient water, which on the one hand generates enough hot steam for ironing, and on the other hand, when needed, can provide sufficient water flow for the Laval nozzle 2 to achieve cleaning effect, further realizing the cleaning effect of the steamer. Located inside the main housing, connected to the steam generation assembly, used for storing water. The design of the water receiving box 9 ensures that the steamer has enough water source during ironing. Water is the key to generating steam, so the capacity of the water receiving box 9 needs to be large enough to ensure that the steam generation assembly can continuously generate high-temperature steam. The water in the water receiving box 9 is heated and converted into steam for ironing clothes. Sufficient water quantity can ensure the continuity and stability of steam supply, thereby improving the ironing efficiency. The water receiving box 9 not only provides water source for ironing, but also can provide water flow for the Laval nozzle 2 when needed to achieve cleaning function. This helps to remove mineral deposits or other impurities that may accumulate inside the nozzle, keeping the nozzle unobstructed and the quality of the steam. By providing cleaning water flow for the Laval nozzle 2, the design of the water receiving box 9 enables the steamer to have self-cleaning ability, which helps to prolong the service life of the equipment and maintain the best ironing effect.

[0067] In this embodiment, a steam conduit 10 is also included, the internal configuration of which constitutes the configuration of the Laval nozzle 2.

[0068] Generally, the Laval nozzle 2 is directly formed in the steam conduit 10 connected to the steam generating assembly, so that the whole assembly is more convenient and simple, and the Laval nozzle 2 is not easily damaged.

[0069] In the embodiment, the Laval nozzle 2 comprises a middle narrowed pipe section 11, two ends of the middle narrowed pipe section 11 are respectively a first pipe section 12 and a second pipe section 13, the first pipe section 12 is connected to the steam generating assembly, and the second pipe section 13 is connected to the steam outlet 4, and the length of the second pipe section 13 is greater than the length of the first pipe section 12.

[0070] Since the length of the second pipe section 13 connected to the steam outlet 4 is longer than the length of the first pipe section 12, the second pipe section 13 has more time to generate cavitation bubbles when passing through the middle narrowed pipe section 11, so that more cavitation bubbles can be obtained, and the cleaning effect is ensured. And the second pipe section 13 is provided as an expanding end.

[0071] In the embodiment, the length of the middle narrowed pipe section 11 is 1 / 10 of the length of the second pipe section 13.

[0072] The length of the middle narrowed pipe section 11 is much smaller than the length of the second pipe section 13, so that the fluid can quickly enter the second pipe section 13 after passing through the middle narrowed pipe section 11, and the fluid is not slowed down in the middle narrowed pipe section 11 due to the length of the middle narrowed pipe section 11.

[0073] The Laval nozzle 2 is composed of three parts, which are the middle narrowed pipe section 11 and the first pipe section 12 and the second pipe section 13 connected thereto.

[0074] The first pipe section 12 is connected to the steam generating assembly and is responsible for guiding the generated steam into the Laval nozzle 2. The second pipe section 13 is connected to the steam outlet 4 and is responsible for guiding the steam out and for ironing. The length of the second pipe section 13 is greater than the length of the first pipe section 12, so that the second pipe section 13 has more time to generate cavitation bubbles when passing through the middle narrowed pipe section 11.

[0075] Cavitation bubble refers to a steam bubble formed in a liquid due to a decrease in pressure. In the Laval nozzle 2, when the steam passes through the middle narrowed pipe section 11, the decrease in pressure causes the water vapor to partially condense into water droplets, forming cavitation bubbles.

[0076] Since the second pipe section 13 is longer than the first pipe section 12, the steam has more time to generate cavitation bubbles in the second pipe section 13, which increases the number of cavitation bubbles.

[0077] The generation of cavitation bubbles helps to improve the cleaning effect of the garment steamer. When the cavitation bubbles burst, they produce tiny shock waves that can effectively remove dirt and bacteria from the clothes, thereby improving the efficiency of ironing and cleaning.

[0078] This design of the Laval nozzle 2 not only helps to improve the efficiency of steam injection, but also enhances the cleaning ability of the garment steamer by increasing the number of cavitation bubbles, allowing the garment steamer to provide additional cleaning effects while ironing clothes. This design makes the garment steamer a multifunctional household appliance that can both iron clothes and perform deep cleaning.

[0079] Embodiment 2

[0080] A garment steamer is provided, comprising:

[0081] A garment steaming body 1,

[0082] A steam generating assembly is provided in the garment steaming body 1 and connected with a Laval nozzle 2, the steam generated by the steam generating assembly is output through the Laval nozzle 2,

[0083] After the garment steamer is powered on and water is added, the steam generating assembly of the garment steamer vaporizes normal temperature water into high temperature water, generally above 98 degrees, high pressure steam, and releases the scalding steam through the Laval nozzle 2,

[0084] An ironing head 3 is provided with a steam outlet 4, the steam outlet 4 is connected with the Laval nozzle 2, and the Laval nozzle 2 is close to the steam outlet 4.

[0085] The method for ironing clothes of the garment steamer described above, comprising the following steps: making the steam generating assembly generate hot steam, the hot steam is transmitted to the steam outlet 4 of the ironing head 3 through the Laval nozzle 2, when the hot steam flows through the narrowed pipe section of the Laval nozzle 2, the hot steam accelerates, and when the hot steam flows out of the narrowed pipe section, the hot steam is cavitated by air and collides onto the clothes.

[0086] The Laval nozzle 2 is connected with the steam generating assembly, so that the steam generated by the steam generating assembly is first transmitted to the clothes to be ironed through the Laval nozzle 2. The steam utilizes the acceleration principle of the Laval nozzle 2, when the steam flows through the pipe with small cross-sectional area, it will accumulate and accelerate. In a sealed pipe, the saturated steam pressure of water is constant, according to Bernoulli's principle, the faster the fluid speed, the smaller the pressure. When the pressure is less than the saturated steam pressure of water, cavitation bubbles are generated in the high-speed steam flow, which collide and burst on the surface of the clothes, thereby producing a cleaning effect. The garment steamer not only has ironing effect, but also can effectively remove stains, increasing the efficiency of the garment steamer. The efficient cavitation bubble cleaning technology can achieve cleaning effect with only half of the water, meeting the requirements of energy saving and emission reduction. The garment steamer described above has simple structure, suitable for large-scale production and application.

[0087] Embodiment 3

[0088] The garment steamer comprises:

[0089] a steaming body 1,

[0090] a steam generating assembly arranged in the steaming body 1 and connected with a Laval nozzle 2, steam generated by the steam generating assembly being output through the Laval nozzle 2,

[0091] After the garment steamer is powered on and water is added, the steam generating assembly of the garment steamer vaporizes normal-temperature water into high-temperature water vapor, generally at a temperature of 98 degrees or above, and releases the scalding water vapor through the Laval nozzle 2.

[0092] an ironing head 3 provided with a steam outlet 4 connected with the Laval nozzle 2, the Laval nozzle 2 being close to the steam outlet 4. The ironing head 3 comprises a limiting nozzle 5 in contact with clothes to be ironed, the limiting nozzle 5 being communicated with the steam outlet 4, and an inner side wall surface of the limiting nozzle 5 being provided with a UVC sterilization lamp 6 facing the clothes to be ironed.

[0093] The method for ironing clothes by the garment steamer comprises the following steps: generating hot steam by the steam generating assembly, transmitting the hot steam to the steam outlet 4 of the ironing head 3 through the Laval nozzle 2, accelerating the flow of the hot steam when the hot steam flows through the narrowed pipe section of the Laval nozzle 2, and air-bubbling and colliding the hot steam on the clothes when the hot steam flows out of the narrowed pipe section, and irradiating the clothes by the UVC sterilization lamp 6.

[0094] The Laval nozzle 2 is connected with the steam generating assembly, so that the steam generated by the steam generating assembly is first transmitted to clothes to be ironed through the Laval nozzle 2. The steam utilizes the acceleration principle of the Laval nozzle 2, and when the steam flows through a pipe with a small cross-sectional area, the steam is accelerated. In a sealed pipe, the saturated steam pressure of water is constant, according to Bernoulli's principle, the greater the flow rate of the fluid, the smaller the pressure. When the pressure is less than the saturated steam pressure of water, cavitation bubbles are generated in the high-speed steam flow, and the cavitation bubbles collide and burst on the surface of the clothes, thereby producing a cleaning effect. The garment steamer not only has an ironing effect, but also effectively removes stains, thereby increasing the efficiency of the garment steamer. The efficient cavitation bubble cleaning technology can achieve a cleaning effect with only half the amount of water, which meets the requirements of energy saving and emission reduction. The garment steamer has a simple structure and is suitable for large-scale production and application. The UVC sterilization function is simultaneously started during the washing process, so that the clothes are washed and disinfected at the same time, thereby providing a powerful guarantee for the hygiene of the clothes.

[0095] The foregoing description, for purposes of clarity, describes the relative positioning, numeric expressions, and values of the components and steps set forth in the embodiments in terms of their orientation with the application. It will be recognized that the dimensions of the various parts illustrated in the drawings are not necessarily drawn to scale and that, for the purposes of convenience and clarity only, specific spatial orientations are used in the description herein. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but are intended to be part of the scope of the present application. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation on the scope of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like reference numerals and letters refer to like items in the drawings and, as such, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0096] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0097] For the purpose of convenience and brevity, spatially relative terms, such as "on", "above", "top", "up", "down", "bottom", and the like, can be used herein for describing the spatial relationship between one device or feature to another device or feature as shown in the drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the devices in use or operation in addition to the orientations depicted in the drawings. For example, if a device shown in the drawings is inverted, then a device described as "above" or "on" other devices or structures would then be oriented "below" or "on" the other devices or structures. Accordingly, the exemplary term "above" can encompass both an orientation of above and below. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0098] In addition, it should be noted that the use of the terms "first", "second", and the like, to describe various components do not imply any particular importance or that the referenced components must be in a particular order. The terms are merely used to distinguish one component from another.

[0099] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A garment steamer, characterized in that, The garment steamer comprises: a steaming body, a steam generating assembly arranged in the steaming body and connected with a Laval nozzle, steam generated by the steam generating assembly being output through the Laval nozzle, a steaming head provided with a steam outlet, the steam outlet being connected with the Laval nozzle, and the Laval nozzle being close to the steam outlet.

2. The garment steamer according to claim 1, characterized in that The steaming head comprises a limiting nozzle for contacting clothes to be steamed, the limiting nozzle being communicated with the steam outlet, and an inner side wall surface of the limiting nozzle being provided with a UVC sterilization lamp, the UVC sterilization lamp being directed towards the clothes to be steamed.

3. The garment steamer according to claim 2, characterized in that The steaming body comprises a main housing, the steam generating assembly and the Laval nozzle being arranged in the main housing, the steaming head being arranged at an end of the main housing, and a bottom of the main housing being provided with a handle.

4. The garment steamer according to claim 3, characterized in that The handle comprises a first handle and a second handle, the first handle being arranged side by side with the second handle.

5. The garment steamer according to claim 3, characterized in that A water receiving box is arranged in the main housing, and the water receiving box is connected with the steam generating assembly.

6. The garment steamer according to claim 5, characterized in that A steam guide pipe is further provided, and an inner portion of the steam guide pipe forms a configuration of the Laval nozzle.

7. The garment steamer according to claim 1, characterized in that, The Laval nozzle comprises a middle narrow tube section, two ends of the middle narrow tube section being respectively a first tube section and a second tube section, the first tube section being connected with the steam generating assembly, the second tube section being connected with the steam outlet, and a length of the second tube section being greater than a length of the first tube section.

8. The garment steamer according to claim 7, characterized in that The length of the middle narrow tube section is 1 / 10 of the length of the second tube section.