Steam generating device and garment steamer

Abstract

The application discloses a steam generating device and a garment steamer. The steam generating device comprises a steam generator, a muffler and a panel. The steam generator has a steam generating cavity which is arranged to heat water or steam and has a steam injection port. The muffler has a muffling cavity which is in communication with the steam injection port. The panel is arranged at the outlet end of the muffling cavity and has a steam injection hole which is in communication with the muffling cavity. In the steam generating device, the muffling cavity is arranged to effectively inhibit the transmission of the flow noise of steam in the steam generating cavity to the outside, to avoid the superposition of the flow noise of steam in the steam generating cavity and the steam injection noise, and to eliminate the medium and high frequency noise generated when steam is injected from the steam injection port, so as to reduce the noise of the steam generating device during operation and to improve the use experience of the garment steamer.

Description

Technical Field

[0001] This invention relates to, but is not limited to, a steam generating device and a garment steamer. Background Technology

[0002] As people's requirements for ironing clothes become increasingly demanding, so too do their requirements for the steam generation performance of garment steamers. Good ironing results require a high steam jet speed, and there is a positive correlation between steam jet speed and steam noise; that is, a higher jet speed increases noise to some extent, thus affecting the user experience. Summary of the Invention

[0003] The purpose of this invention is to provide a steam generating device and a garment steamer that can reduce the noise of the garment steamer and improve the user experience.

[0004] The technical solution of this invention is as follows:

[0005] A steam generating apparatus, comprising:

[0006] A steam generator having a steam generation chamber configured to heat water or steam, the steam generation chamber having a steam injection port;

[0007] A silencer having a silencing cavity connected to the steam injection port; and

[0008] A panel is provided on the outlet end of the silencing cavity, and the panel is provided with steam nozzles communicating with the silencing cavity.

[0009] In some exemplary embodiments, the cross-sectional area S2 of the silencing cavity is larger than the cross-sectional area S1 of the steam injection port along the steam outlet direction perpendicular to the steam injection port.

[0010] In some exemplary embodiments,

[0011] In some exemplary embodiments,

[0012] In some exemplary embodiments, the length L of the silencer cavity along the steam outlet direction of the steam injection port satisfies:

[0013]

[0014] Where c is the speed of sound and f is the frequency of the noise to be denoised.

[0015] In some exemplary embodiments, the length of the silencer cavity is greater than or equal to 10 mm along the steam outlet direction of the steam injection port.

[0016] In some exemplary embodiments, the length of the silencing cavity is greater than or equal to 20 mm and less than or equal to 25 mm.

[0017] In some exemplary embodiments, the silencing cavity is configured as a heated silencing cavity capable of reheating the steam.

[0018] In some exemplary embodiments, at least one step is provided inside the silencer cavity along the steam outlet direction of the steam injection port.

[0019] In some exemplary embodiments, the panel surface on the side away from the silencing cavity is provided with a steam guide groove, one end of which is connected to the steam nozzle, and the other end extends outward along the radial direction of the steam nozzle.

[0020] In some exemplary embodiments, the width of the steam guide groove gradually decreases along the radially outward direction of the steam nozzle.

[0021] In some exemplary embodiments, the depth of the steam guide channel gradually decreases along the radially outward direction of the steam nozzle.

[0022] In some exemplary embodiments, multiple steam nozzles and steam guide channels are provided, the number of steam guide channels is not greater than the number of steam nozzles, and the multiple steam guide channels are connected to at least a portion of the multiple steam nozzles in a one-to-one correspondence.

[0023] The steam guide channels that communicate with the two adjacent steam injection holes are arranged in a staggered direction.

[0024] In some exemplary embodiments, the plurality of steam nozzles are staggered such that adjacent steam nozzles are spaced apart in both a first direction and a second direction along the panel, and the steam guide groove communicating with one of the steam nozzles extends toward the side where the adjacent steam nozzle is located.

[0025] In some exemplary embodiments, the steam generator and the silencer are integrally formed; or

[0026] The muffler and the panel are integrally formed; or

[0027] The silencer, the steam generator, and the panel are assembled in a separate manner.

[0028] A garment steamer includes the steam generating device described in any of the above embodiments.

[0029] The embodiments of this application have the following beneficial effects:

[0030] In this steam generator, the steam generation chamber of the steam generator can heat water to generate steam, or it can reheat the steam to improve the quality of the steam, thereby achieving a better ironing effect; the steam nozzle is connected to the silencing chamber, so that the steam in the steam generation chamber can enter the silencing chamber through the steam nozzle, and then be ejected from the steam nozzle on the panel after passing through the silencing chamber.

[0031] Compared to some steam generators where steam flows directly from the steam nozzles on the panel after exiting the steam generation chamber, resulting in steam jet noise and additional noise from the steam flow within the steam generation chamber, the noise is amplified when these two are combined. In this embodiment, the silencing cavity separates the steam nozzles from the steam jet outlets of the steam generation chamber, effectively suppressing the transmission of steam flow noise from the steam generation chamber. This avoids the superposition of steam flow noise and steam jet noise, reducing the noise during operation of the steam generator and thus improving the user experience of the garment steamer.

[0032] Furthermore, since steam easily generates mid-to-high frequency noise during the injection process, and this noise is relatively sharp and has a poor auditory experience, it is essential to eliminate steam injection noise in this frequency range. The steam generator of this application embodiment includes a silencing cavity downstream of the steam injection port. This silencing cavity eliminates the mid-to-high frequency noise generated when steam is injected, reducing the noise level of the steam generator during operation.

[0033] Therefore, the steam generator of this application embodiment, by setting a silencing cavity, effectively suppresses the transmission of steam flow noise in the steam generation cavity to the outside, avoids the superposition of steam flow noise and steam jet noise in the steam generation cavity, and also eliminates the mid-to-high frequency noise generated when steam is ejected from the steam jet nozzle, reducing the noise when the steam generator is working, thereby improving the user experience of the garment steamer. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a steam generator according to an embodiment of the present invention;

[0035] Figure 2 This is a bottom view of a steam generator according to an embodiment of the present invention;

[0036] Figure 3 for Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0037] Figure 4 This is a schematic diagram of the structure of the steam generator body according to an embodiment of the present invention;

[0038] Figure 5This is a schematic diagram of the panel structure of a steam generator according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic front view of the panel structure of a steam generator according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of a steam generator according to another embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of a steam generator according to another embodiment of the present invention;

[0042] Figure 9 for Figure 8 Schematic diagram of the BB-direction cross-section structure.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 100-Steam Generator

[0045] 1-Purpose device body, 11-Steam generation chamber, 12-Silencer chamber, 121-Step, 13-Steam injection port, 14-Heating tube;

[0046] 2-Panel, 21-Steam nozzle, 21a-Center hole, 22-Steam guide channel;

[0047] 3-Silencer, 4-Steam generator. Detailed Implementation

[0048] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0049] like Figures 1-4 As shown, an embodiment of the present invention provides a steam generating device 100, which is configured to include a steam generator, a silencer and a panel.

[0050] The steam generator is configured to have a steam generation chamber 11, which can heat water or steam. Specifically, the steam generation chamber 11 can heat liquid water to generate steam; or it can reheat steam to improve the quality of the steam, thereby achieving a better ironing effect. The steam generation chamber 11 has a steam injection port 13, from which the steam in the steam generation chamber 11 can be ejected.

[0051] The silencer is configured to have a silencing cavity 12, which is configured to communicate with a steam injection port 13, so that the steam from the steam generation cavity 11 can enter the silencing cavity 12 through the steam injection port 13, and then be ejected from the steam injection hole 21 of the panel 2 after passing through the silencing cavity 12.

[0052] Panel 2 is configured to cover the outlet end of the silencing cavity 12. Panel 2 is provided with a steam nozzle 21 that communicates with the silencing cavity 12, so that the steam entering the silencing cavity 12 can be ejected from the steam nozzle 21 for ironing clothes, etc.

[0053] Compared to some steam generating devices where steam flows directly from the steam nozzle after exiting the steam generating chamber, resulting in steam jet noise, and the steam also generates flow noise within the steam generating chamber, the noise is amplified when these two are combined. In this embodiment, the silencing cavity 12 separates the steam nozzle 21 of the panel 2 from the steam jet port 13 of the steam generating chamber 11, thereby effectively suppressing the outward transmission of flow noise within the steam generating chamber 11 and preventing the superposition of flow noise and steam jet noise within the steam generating chamber 11, thus reducing the noise during operation of the steam generating device 100.

[0054] Furthermore, since steam easily generates mid-to-high frequency noise during the injection process, and this noise is relatively sharp and has a poor auditory experience, it is essential to eliminate steam injection noise in this frequency range. In this embodiment of the steam generator 100, a silencing cavity 12 is provided downstream of the steam injection port 13. This allows the silencing cavity 12 to eliminate the mid-to-high frequency noise generated when steam is injected from the steam injection port 13, thereby reducing the noise level of the steam generator 100 during operation.

[0055] Therefore, the steam generator 100 of this application embodiment, by setting the silencing cavity 12, effectively suppresses the transmission of steam flow noise in the steam generation cavity 11 to the outside, and avoids the superposition of steam flow noise and steam jet noise in the steam generation cavity 11. On the other hand, it also eliminates the mid-to-high frequency noise generated when steam is ejected from the steam jet nozzle 13, reduces the noise when the steam generator 100 is working, and thus improves the user experience of the garment steamer.

[0056] In some exemplary embodiments, such as Figure 3 As shown, along the steam outlet direction perpendicular to the steam injection port 13 (e.g.) Figure 3 As shown by the leftward arrow, the cross-sectional area (i.e., the flow cross-sectional area of ​​the steam injection port 13) is S1. There can be one or more steam injection ports 13. When there are multiple steam injection ports 13, S1 here refers to the sum of the flow cross-sectional areas of the multiple steam injection ports 13. The cross-sectional area (i.e., the flow cross-sectional area of ​​the silencing cavity 12) is S2, and the length of the silencing cavity 12 is L.

[0057] In this embodiment of the application, the silencing cavity 12 has two quantitative indicators, namely the length L along the steam outlet direction of the steam injection port 13 and the cross-sectional area S2 in the direction perpendicular to the steam outlet direction of the steam injection port 13. The shape of the silencing cavity 12 is not limited to a regular shape and can be any shape, but the ratio of its cross-sectional area S2 to the cross-sectional area S1 of the steam injection port 13 and the value of L determine its noise reduction.

[0058] In some exemplary embodiments, the relationship between the cross-sectional area S2 of the silencing cavity 12 and the cross-sectional area S1 of the steam injection port 13 is S2 > S1, which is beneficial to increase the noise reduction of the silencing cavity 12 and improve the noise reduction effect of the silencing cavity 12.

[0059] In some exemplary embodiments, In some examples, Specifically, The value can be 16, 18, 20, 22, 24, etc.

[0060] The relationship between S2 and S1 satisfies: This can effectively ensure the noise reduction effect of the silencing cavity 12.

[0061] certainly, Not limited to the above scope, adjustments can also be made according to actual noise reduction needs. The ratio of .

[0062] There are no specific requirements for the values ​​of S2 and S1. However, the area of ​​S1 affects the amount of steam. If S1 is too small, the amount of steam generated by the steam generator 100 will be small (this is because if S1 is too small, the pressure of the steam before entering the silencer 12 will be high, thus inhibiting further steam supply to the steam injection port 13). A ratio of S2 to S1 greater than 15 has a good silencing effect, while a ratio less than 15 has a poor silencing effect. Therefore, the ratio of S2 to S1 can be controlled between 15 and 25. For S2 and S1, the larger the ratio, the better the silencing effect. However, in practical applications, the noise level of the object to be silencing must be considered to determine its value; an excessively large ratio would be wasteful.

[0063] In some exemplary embodiments, the length L of the anechoic cavity 12 satisfies:

[0064]

[0065] Where c is the speed of sound, typically taken as 340 m / s, and f is the frequency of the noise to be denoised.

[0066] Because steam easily generates mid-to-high frequency noise during the ejection process, and this noise is relatively sharp and unpleasant to hear, it is essential to eliminate steam ejection noise in this frequency range. For products like garment steamers, the steam ejection noise is also concentrated in the mid-to-high frequency range and possesses significant energy within this noise spectrum. Therefore, a silencing cavity 12 is needed to reduce its noise. The value of L is calculated based on frequency data; this frequency represents the noise frequency that the user most wants to eliminate (i.e., the noise frequency to be reduced).

[0067] In some exemplary embodiments, the length L of the anechoic cavity 12 is set to be greater than or equal to 10 mm. For example, the length L of the anechoic cavity 12 may be greater than or equal to 20 mm and less than or equal to 25 mm. In some examples, the length L of the anechoic cavity 12 may be 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, etc.

[0068] Of course, the length L of the silencing cavity 12 is not limited to the above range, and the value of L can be adjusted according to the actual silencing needs.

[0069] In some exemplary embodiments, such as Figure 8 and Figure 9 As shown, at least one step 121 is provided in the silencing cavity 12 along the steam outlet direction of the steam injection port 13. That is, one or more steps 121 can be provided, and multiple steps 121 can be arranged sequentially along the steam outlet direction of the steam injection port 13.

[0070] The step 121 design makes the inner wall of the anechoic chamber 12 stepped, and the anechoic chamber 12 has stepped holes. The step 121 design can optimize the noise reduction effect.

[0071] In some exemplary embodiments, such as Figure 3 and Figure 4 As shown, the steam generator and the silencer are integrally molded to form the device body 1 of the steam generating device 100.

[0072] One-piece molding structure helps reduce the number of parts, lowers costs, simplifies assembly operations, and improves assembly efficiency.

[0073] like Figure 3 and Figure 4As shown, the steam generation chamber 11 and the silencing chamber 12 are respectively located at both ends of the device body 1. The steam generation chamber 11 is located at the right end of the device body 1. The steam generation chamber 11 has a steam channel within it, allowing steam to flow and enter the silencing chamber 12 through the steam injection port 13. The steam channel can be tortuous or meandering to prolong the steam flow time within the liquid water / steam generation chamber 11, ensuring the liquid water / steam is fully heated, increasing the temperature and quantity of the generated steam, and improving steam quality.

[0074] The silencing cavity 12 is located at the left end of the device body 1. The silencing cavity 12 may be waist-shaped, rectangular, circular, or other shapes. One end of the silencing cavity 12 is open, and the steam injection port 13 penetrates the cavity wall opposite the opening of the silencing cavity 12 to communicate with the silencing cavity 12.

[0075] The steam injection port 13 can be rectangular, circular, or other shapes. The shape and number of steam injection ports 13 can be arbitrary, but their total injection area S1 will affect the cross-sectional area S2 of the silencing cavity 12.

[0076] In other exemplary embodiments, such as Figure 8 and Figure 9 As shown, the silencer 3, steam generator 4, and panel 2 are separate assembly structures, that is, the silencer 3, steam generator 4, and panel 2 are three independent components that can be assembled and fixed; or, the silencer can be set as an integral molding structure with panel 2. This integral molding helps to reduce the number of parts, reduce costs, simplify assembly operations, and improve assembly efficiency.

[0077] Regardless of whether the silencer is integrally formed with the steam generator, integrally formed with the panel 2, or the silencer is a separate component, the silencer cavity 12 must have good sealing performance; otherwise, it cannot effectively perform the silencing function.

[0078] In some exemplary embodiments, the silencing cavity 12 is configured as a heated silencing cavity capable of reheating steam.

[0079] After the steam leaves the steam generation chamber 11 and enters the silencing chamber 12, it is reheated in the silencing chamber 12 to further improve the quality of the steam.

[0080] In some exemplary embodiments, such as Figures 1-3 As shown, the main body 1 of the steam generator 100 is further provided with a heating tube 14, which can heat the steam in the steam generation chamber 11 and the silencing chamber 12. The heating tube 14 may be annular with an opening, such as U-shaped or C-shaped.

[0081] Compared to some steam generators that only include a steam generation chamber, the steam generator 100 of this application adds a silencer chamber 12 for reheating and silencing the steam, making the steam generator 100 include a steam generation chamber 11 and a silencer chamber 12. The steam generation chamber 11 is the main heating zone for the steam, and it can be a single unit with an internal structure that can be any type of steam generator. After leaving the main heating zone, the steam enters the silencer chamber 12. The silencer chamber 12 is the steam reheating zone, where the hot walls of the silencer chamber 12 reheat the steam, further improving steam quality. Here, the heating element can be embedded within the steam generator or within the structure of both the steam generator and the silencer.

[0082] In some exemplary embodiments, such as Figure 3 and Figure 5 As shown, panel 2 is configured to include an end plate and an annular side plate. The end plate is provided with steam nozzles 21. The annular side plate is connected to the edge of the end plate and is configured to be sleeved on the outside of the opening end of the silencing cavity 12, so as to realize the connection between panel 2 and device body 1, and the communication between steam nozzles 21 and silencing cavity 12.

[0083] In some exemplary embodiments, such as Figure 5 and Figure 6 As shown, the panel 2 on the side away from the silencing cavity 12 (i.e. the outer panel of the panel 2) is provided with a steam guide groove 22. The steam guide groove 22 is configured such that one end is connected to the steam nozzle 21, and the other end extends outward along the radial direction of the steam nozzle 21.

[0084] A steam guide groove 22 is provided on the outer surface of panel 2. The steam guide groove 22 communicates with the steam nozzle 21 to guide the steam ejected from the steam nozzle 21. The steam guide groove 22 extends radially outward along the steam nozzle 21, so that the steam ejected under the guidance of the steam guide groove 22 will travel further and further after being ejected. It is difficult for the steam jets ejected from the steam nozzle 21 to converge. By reducing steam convergence, the steam convergence noise can be reduced, thereby further reducing the steam ejection noise.

[0085] In some exemplary embodiments, such as Figure 6 As shown, the width W of the steam guide groove 22 gradually decreases along the radial outward direction of the steam nozzle 21, making the steam guide groove 22 as a whole conical shape.

[0086] In some exemplary embodiments, such as Figure 5 and Figure 6As shown, the depth of the steam guide groove 22 gradually decreases along the radial outward direction of the steam nozzle 21, so that the end of the steam guide groove 22 away from the steam nozzle 21 can be smoothly connected to the outer surface of the panel. This allows the steam flowing along the steam guide groove 22 to gradually separate from the steam guide groove 22 without causing a drastic change in the flow direction, resulting in turbulence and noise.

[0087] In some exemplary embodiments, such as Figure 5 and Figure 6 As shown, multiple steam nozzles 21 and steam guide channels 22 are provided. The number of steam guide channels 22 is no greater than the number of steam nozzles 21, and the multiple steam guide channels 22 are connected to at least a portion of the multiple steam nozzles 21 in a one-to-one correspondence. Specifically, the number of steam guide channels 22 and steam nozzles 21 can be the same, such that the multiple steam guide channels 22 are connected to the multiple steam nozzles 21 in a one-to-one correspondence; or, the number of steam guide channels 22 can be less than the number of steam nozzles 21, such that a portion of the multiple steam nozzles 21 are connected to the multiple steam guide channels 22 in a one-to-one correspondence. Figure 5 and Figure 6 As shown, among the multiple steam nozzles 21, the middle steam nozzle (i.e., the central nozzle 21a) is not connected to the steam guide channel 22. It should be understood that each steam nozzle 21 may be connected to one steam guide channel 22 or multiple steam guide channels 22.

[0088] Multiple steam nozzles 21 are arranged in a regular pattern. To reduce the probability of steam jet convergence, the steam guided by the steam guide channel 22 connected to two adjacent nozzles must not collide. In some exemplary embodiments, such as Figure 5 and Figure 6 As shown, the extension directions of multiple steam guide channels 22 connected to two adjacent steam nozzles 21 are staggered. The extension direction of the steam guide channel 22 can be represented by a ray that starts from the end of the steam guide channel connected to the steam nozzle and extends outward through the end of the steam guide channel. The staggered extension directions of the two steam guide channels mean that the two rays will not intersect.

[0089] The extension directions of the multiple steam guide channels 22 are intersecting and will not intersect, so that the steam guided by the steam guide channels 22 will not converge, thus avoiding the convergence noise caused by steam convergence.

[0090] In some exemplary embodiments, such as Figure 5 and Figure 6 As shown, multiple steam nozzles 21 are staggered, such that adjacent steam nozzles 21 are aligned along the first direction of the panel 2 (e.g., the length direction of a rectangular panel 2, such as...). Figure 6 The left and right directions) and the second direction (such as the width direction of a rectangular panel 2, such as...) Figure 6 There are gaps in both the vertical and horizontal directions. For example... Figure 6As shown, the multiple steam nozzles 21 are staggered, and three adjacent steam nozzles 21 are not arranged in a straight line (that is, the line connecting the centers of three adjacent steam nozzles 21 is not a straight line).

[0091] The steam guide channel 22, which communicates with one steam nozzle 21, extends toward the side where the adjacent steam nozzle 21 is located. For example... Figure 6 As shown, a steam nozzle 21 adjacent to the leftmost steam nozzle 21 is located on its upper right side, and the steam guide channel 22 connected to the leftmost steam nozzle 21 extends upward. Figure 6 In the middle, the two steam guide channels 22 that are connected to the two adjacent steam nozzles 21 extend in opposite directions and are staggered in position.

[0092] In other exemplary embodiments, such as Figure 7 As shown, multiple steam nozzles 21 can be arranged in a straight line, that is, the line connecting the centers of multiple steam nozzles 21 is a straight line.

[0093] like Figure 5 and Figure 6 As shown, the multiple steam nozzles 21 can have the same shape and size, such as: all multiple steam nozzles 21 can be round holes, conical holes, or oblong holes, etc. Or, as Figure 7 As shown, the shape and / or size of the multiple steam nozzles 21 may not be exactly the same. For example, some steam nozzles 21 may be round orifices, and some steam nozzles 21 may be oblong orifices.

[0094] The silencing cavity 12 structure of this application embodiment was applied to a steam generator, and its jet noise was then tested. The noise test results are shown in Table 1.

[0095] Table 1 Noise test results before and after adding silencing cavity 12

[0096]

[0097]

[0098] In Table 1, "original structure" refers to the original steam generator structure without the addition of the silencer cavity 12; "original extension" refers to extending the length of the steam nozzle 21 based on the original steam generator structure; "straight hole 20mm" means that the length L of the silencer cavity 12 is 20mm, and the steam nozzle 21 is a straight hole without the steam guide groove 22 (e.g., Figure 7 (as shown); "20mm straight hole - plugged center hole" means that the length L of the silencing cavity 12 is 20mm, and the steam injection hole 21 is a straight hole, without a steam guide groove 22 (as shown). Figure 7 (as shown), and put Figure 7The central steam nozzle (i.e., central nozzle 21a) is blocked by some means, that is, the number of steam nozzles 21 is reduced; "20mm offset" means that the length L of the silencing cavity 12 is 20mm, and the three adjacent steam nozzles 21 are not arranged in a straight line, the arrangement of the steam nozzles 21 is as follows Figure 5 and Figure 6 As shown; "20mm misalignment - blocked center hole" means that the length L of the silencing cavity 12 is 20mm, and the three adjacent steam nozzles 21 are not arranged in a straight line. The arrangement of the steam nozzles 21 is as follows: Figure 5 and Figure 6 As shown, and put Figure 5 and Figure 6 The central steam nozzle (i.e., central nozzle 21a) is blocked by some means; "25mm misalignment" means that the length L of the silencing cavity 12 is 25mm, and the three adjacent steam nozzles 21 are not arranged in a straight line. The arrangement of the steam nozzles 21 is as follows: Figure 5 and Figure 6 As shown; "25mm misalignment - blocked center hole" means that the length L of the silencing cavity 12 is 25mm, and the three adjacent steam nozzles 21 are not arranged in a straight line. The arrangement of the steam nozzles 21 is as follows: Figure 5 and Figure 6 As shown, and put Figure 5 and Figure 6 The steam nozzle located in the middle (i.e., the central nozzle 21a) was blocked by some means.

[0099] As can be seen from Table 1, the noise level is reduced after the sound-absorbing cavity 12 is set, achieving the effect of noise reduction.

[0100] This application also provides a garment steamer, which is configured to include the steam generating device 100 provided in any of the above embodiments and has all the beneficial effects of the steam generating device 100 provided in any of the above embodiments, which will not be described in detail here.

[0101] The steam generator 100 can be installed on the iron head.

[0102] In summary, the low-noise steam generator proposed in this application embodiment connects a silencing cavity structure to the steam injection port of the original steam generator. This silencing cavity can separate the steam generation chamber from the steam injection holes on the panel, thereby effectively avoiding the superposition of flow noise in the steam generation chamber and steam injection noise at the steam injection port. Furthermore, through the reasonable design of the size and structure of the silencing cavity, the steam injection noise at the steam injection port can be effectively reduced, thus obtaining a low-noise steam generator with no reduction in steam injection performance.

[0103] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0105] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0106] In the description of this invention, the term "a plurality of" refers to two or more.

[0107] In the description of this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0109] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A steam generating device, characterized in that, include: A steam generator having a steam generation chamber configured to heat water or steam, the steam generation chamber having a steam injection port; A silencer having a silencing cavity connected to the steam injection port; and A panel is provided on the outlet end of the silencing cavity, and the panel is provided with steam injection holes communicating with the silencing cavity; The panel is provided with a steam guide groove on the side away from the silencing cavity. One end of the steam guide groove is connected to the steam nozzle, and the other end extends outward along the radial direction of the steam nozzle. Along the radial outward direction of the steam nozzle, the width of the steam guide groove gradually decreases, and the depth of the steam guide groove gradually decreases, so that the end of the steam guide groove away from the steam nozzle can be smoothly connected to the outer surface of the panel. The silencer cavity is provided with at least one step, and the at least one step is arranged sequentially along the steam outlet direction of the steam injection port, so that the inner wall surface of the silencer cavity is stepped, and the silencer cavity is a stepped hole. The steam nozzles are provided in multiple ways, with the central nozzle being the one located in the middle. Blocking the central nozzle helps to reduce noise.

2. The steam generating device according to claim 1, characterized in that, Along the steam outlet direction perpendicular to the steam injection port, the cross-sectional area S2 of the silencing cavity is larger than the cross-sectional area S1 of the steam injection port.

3. The steam generating device according to claim 2, characterized in that, 。 4. The steam generating apparatus according to claim 3, characterized in that, 。 5. The steam generating apparatus according to claim 1, characterized in that, Along the steam outlet direction of the steam injection port, the length L of the silencer cavity satisfies: Where c is the speed of sound and f is the frequency of the noise to be denoised.

6. The steam generating apparatus according to claim 1, characterized in that, Along the steam outlet direction of the steam injection port, the length of the silencer cavity is greater than or equal to 10 mm.

7. The steam generating apparatus according to claim 6, characterized in that, The length of the silencing cavity is greater than or equal to 20 mm and less than or equal to 25 mm.

8. The steam generating apparatus according to any one of claims 1 to 7, characterized in that, The silencing cavity is configured as a heated silencing cavity capable of reheating the steam.

9. The steam generating apparatus according to claim 1, characterized in that, Multiple steam nozzles and steam guide channels are provided, the number of steam guide channels is no greater than the number of steam nozzles, and the multiple steam guide channels are connected one-to-one with at least a portion of the multiple steam nozzles. The steam guide channels that communicate with the two adjacent steam injection holes are arranged in a staggered direction.

10. The steam generating apparatus according to any one of claims 1 to 7, characterized in that, The steam generator and the silencer are integrally formed; or The muffler and the panel are integrally formed; or The silencer, the steam generator, and the panel are assembled in a separate manner.

11. A garment steamer, characterized in that, The steam generating apparatus includes any one of claims 1 to 10.

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