Spraying device and clothes processing equipment

Abstract

The embodiment of the invention provides a spraying device and clothes processing equipment, and the spraying device comprises a housing which is provided with a fluid channel; the one or more nozzles are arranged on one side of the shell, each nozzle is provided with a spraying cavity and a liquid outlet gap, each spraying cavity is provided with a liquid inlet and a liquid outlet, and each spraying cavity is communicated with the fluid channel through the corresponding liquid inlet and communicated with the corresponding liquid outlet gap through the corresponding liquid outlet; wherein the center position of the liquid outlet deviates towards the first direction relative to the center position of the liquid inlet, the first direction is parallel to the width direction of the liquid outlet gap, two flow guide faces are formed on the two opposite sides of the liquid outlet gap in the width direction, and at least one flow guide face inclines towards the first direction from the top end to the bottom end. The spraying device provided by the embodiment of the invention has a better inclined spraying effect, and is simple in structure and low in manufacturing difficulty.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular to a spray device and a clothing processing device. Background Art

[0002] Taking a clothes processing device with a drying function as an example, in the related art, the clothes processing device uses a spray device to spray the evaporator, thereby removing impurities such as hair debris attached to the surface of the evaporator.

[0003] In some cases, the spray device may not be directly arranged above the evaporator but needs to be arranged above the side. Therefore, it is necessary to provide a spray device that can spray liquid at an angle so that the spray device can still effectively spray when it is arranged above the side of the evaporator.

[0004] In the prior art, the inclined liquid spraying is usually achieved by rotating the nozzle or by tilting the nozzle as a whole. The nozzle structures of these solutions are complex, difficult to manufacture, and have poor spraying effects. Summary of the Invention

[0005] In view of this, embodiments of the present application desire to provide a spray device and a clothing processing device that can spray liquid at an angle.

[0006] A first aspect of an embodiment of the present application provides a spray device, comprising: a shell having a fluid channel; one or more nozzles arranged on one side of the shell, the nozzle having a spray chamber and a liquid outlet gap, the spray chamber having a liquid inlet and a liquid outlet, the spray chamber being connected to the fluid channel through the liquid inlet, and being connected to the liquid outlet gap through the liquid outlet; wherein the center position of the liquid outlet is offset toward a first direction compared to the center position of the liquid inlet, the first direction is parallel to the width direction of the liquid outlet gap, and two guide surfaces are formed on opposite sides of the liquid outlet gap along the width direction, wherein at least one of the guide surfaces is inclined toward the first direction from the top to the bottom.

[0007] In some embodiments, one of the two guide surfaces is inclined toward the first direction from the top to the bottom, and the other is parallel to the height direction of the spray device.

[0008] In some embodiments, the bottom end of the guide surface has an arc-shaped chamfer.

[0009] In some embodiments, the liquid outlet penetrates the spray cavity along a second direction, and the second direction is parallel to the length direction of the liquid outlet gap.

[0010] In some embodiments, the top wall of the liquid outlet gap forms two diffusion surfaces, the two diffusion surfaces are respectively connected to opposite sides of the liquid outlet along the second direction, and at least part of the two diffusion surfaces extend obliquely away from each other.

[0011] In some embodiments, the extended end of the diffusion surface is flush with the bottom surface of the shell, or the extended end of the diffusion surface is lower than the bottom surface of the shell.

[0012] In some embodiments, the shell has a liquid inlet interface and a transition channel, the transition channel communicates the liquid inlet interface and the fluid channel, wherein the cross-sectional area of the liquid inlet interface is greater than the cross-sectional area of the fluid channel, and the cross-sectional area of the transition channel decreases along the liquid flow direction.

[0013] In some embodiments, the shell comprises a first sub-shell and a second sub-shell, the first sub-shell and the second sub-shell are butted along the height direction to define the fluid channel.

[0014] In some embodiments, the first sub-shell and the second sub-shell are welded on opposite sides of the fluid channel and form a welding rib at the welding rib position, the first sub-shell and / or the second sub-shell form a blocking rib structure on opposite sides of the fluid channel, the space between the two blocking rib structures defines the fluid channel, and the blocking rib structure and the welding rib are spaced apart and define a glue overflow groove.

[0015] A second aspect of the embodiments of the present application provides a laundry treating apparatus, comprising: a drum assembly; an air duct shell having an air duct, the air duct communicating with an internal space of the drum assembly; an evaporator provided in the air duct; and a spraying device as described in any one of the above embodiments, a liquid outlet gap of the spraying device being used to spray liquid towards the evaporator.

[0016] In some embodiments, the liquid outlet position of the liquid outlet gap is located on the windward side of the evaporator, and the liquid outlet gap is used to obliquely spray liquid towards the windward side of the evaporator.

[0017] In some embodiments, the air duct shell comprises a bottom shell and a top cover, the top cover is provided on the top side of the bottom shell, and a part of the top cover forms the shell.

[0018] In some embodiments, the spraying device is provided in the air duct, and the shell and the air duct shell are in a split structure.

[0019] In some embodiments, the inner space of the air duct housing is divided into the air duct and the liquid discharge cavity, the bottom of the air duct has a flow channel communicating with the liquid discharge cavity, and the liquid sprayed by the spraying device enters the liquid discharge cavity through the flow channel.

[0020] In some embodiments, the bottom wall of the flow channel extends downwardly from one end away from the liquid discharge cavity to one end close to the liquid discharge cavity, for guiding the liquid to the liquid discharge cavity.

[0021] In some embodiments, the air duct housing comprises a bottom shell, a partition block and a top cover, the top cover is arranged on the top side of the bottom shell, the partition block is arranged in the bottom shell, the height of the top edge of the partition block is lower than the height of the top edge of the bottom shell, the partition block is upstream of the evaporator along the air flow direction, and the air duct and the liquid discharge cavity are located on opposite sides of the partition block; the bottom side of the spraying device is formed with a protruding portion, and the bottom of the protruding portion is in contact with the top of the partition block.

[0022] In the spraying device and the clothes treatment equipment provided by the embodiments of the present application, the positional relationship between the liquid inlet and the liquid outlet of the nozzle is adjusted, the center position of the liquid outlet is offset towards the first direction compared with the center position of the liquid inlet, and one of the flow guide surfaces of the liquid outlet gap is inclined from the top end to the bottom end towards the first direction, so that the spraying device can stably spray liquid. In addition to having a good inclined spraying effect, compared with related technologies, the embodiments do not need to rotate the nozzle when spraying, and only one or two flow guide surfaces of the nozzle need to be inclined, without the need for overall inclined setting (such as setting the spray cavity as an axially inclined cavity), so that the structure is relatively simple and the manufacturing difficulty is relatively low. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a top structure schematic diagram of the spraying device in the present application;

[0024] Figure 2 FIG. 2 is a bottom structure schematic diagram of the spraying device in the present application; Figure 1

[0025] Figure 3 FIG. 3 is an A-A cross-sectional schematic diagram of the spraying device in the present application; Figure 2

[0026] Figure 4 FIG. 4 is a liquid flow direction schematic diagram in the spray cavity in the present application; Figure 3

[0027] Figure 5 FIG. 5 is a B-B cross-sectional schematic diagram of the spraying device in the present application; Figure 2

[0028] Figure 6 FIG. 6 is a C-C cross-sectional schematic diagram of the spraying device in the present application;​​​​Figure 5 Enlarged schematic view of the X portion;

[0029] Figure 7 For Figure 6 Schematic view of the liquid flow direction in the spray cavity;

[0030] Figure 8 Schematic view of the partial structure of the laundry treatment apparatus of the present application (top cover removed);

[0031] Figure 9 For Figure 8 Schematic view of the C-C cross section of the laundry treatment apparatus;

[0032] Figure 10 For Figure 8 Schematic view of the D-D cross section of the laundry treatment apparatus;

[0033] Figure 11 Schematic view of the connection of the spray device and the top cover of the air duct housing of the present application.

[0034] Explanation of reference numerals

[0035] 1, spray device; 11, housing; 11a, bottom surface; 111, fluid passage; 112, liquid inlet interface; 113, transition passage; 114, first sub-housing; 115, second sub-housing; 116, fusion rib; 117, blocking rib structure; 118, overflow groove; 12, nozzle; 121, spray cavity; 122, liquid outlet gap; 1211, liquid inlet; 1212, liquid outlet; (123a, 123b), flow guide surface; (124a, 124b), diffusion surface; 13, protruding portion; 2, air duct housing; 21, top cover; 211, mounting groove; 22, bottom shell; 23, air duct; 24, liquid discharge cavity; 25, flow channel; 26, partition block; 3, evaporator. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not intended to limit the present application.

[0037] In the specific embodiments, each specific technical feature described can be combined in any suitable manner, such as by combining different specific technical features, to form different embodiments and technical solutions, without contradiction. In order to avoid unnecessary repetition, various possible combinations of each specific technical feature in the present application are not described again.

[0038] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directions "above," "below," "outside," and "inside" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0039] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. "A plurality" means greater than or equal to two.

[0040] The embodiment of the present application provides a spray device, referring to Figures 1-7 The spray device 1 includes a shell 11, one or more nozzles 12, and the one or more nozzles 12 are arranged on one side of the shell 11. In some embodiments, the nozzle 12 is arranged on the bottom side of the shell, the shell 11 has a fluid channel 111, the nozzle 12 has a spray chamber 121 and a liquid outlet gap 122, the spray chamber 121 has a liquid inlet 1211 and a liquid outlet 1212, the spray chamber 121 is connected to the fluid channel 111 through the liquid inlet 1211, and is connected to the liquid outlet gap 122 through the liquid outlet 1212. During actual use, the spray liquid in the fluid channel 111 can enter the spray chamber 121 of the nozzle 12 through the liquid inlet 1211, and then leave the spray chamber 121 through the liquid outlet 1212, and be sprayed out from the liquid outlet gap 122. The center position of the liquid outlet 1212 is oriented toward the first direction ( Figures 2-4 The first direction is parallel to the width direction of the liquid outlet gap 122.

[0041] The number of nozzles 12 may be one or more. When multiple nozzles 12 are provided, the multiple nozzles 12 may be arranged at intervals along the fluid channel 111 in the direction in which the liquid outlet slit 122 extends. Of course, the multiple nozzles 12 may also be arranged along other directions. Those skilled in the art may determine the arrangement of the multiple nozzles 12 based on actual usage requirements, and this arrangement is not limited thereto.

[0042] The spray cavity 121 can be a cavity formed inside the nozzle 12 to allow liquid to flow, and the size, structure, shape, etc. of the spray cavity 121 can be determined by the actual use requirements, and no limitation is made thereto.

[0043] The liquid outlet gap 122 refers to a structure whose length direction (i.e. the extension direction of the liquid outlet gap) is obviously larger than its width direction, for example, the length direction is 3 times or more than the size of the width direction. As an example, the size of the liquid outlet gap 122 in the length direction can be greater than the size of the liquid outlet 1212 in the length direction of the liquid outlet gap 122, for example, the size of the liquid outlet gap 122 in the length direction can be 1.2-5 times the size of the liquid outlet 1212 in the length direction of the liquid outlet gap 122, see Figure 6 , the size of the liquid outlet gap 122 in the length direction is L, and the size of the liquid outlet 1212 in the length direction of the liquid outlet gap 122 is Φd2, then L = (1.2-5) * Φd2. The two ends of the liquid outlet gap 122 in the length direction can be open, so that the flow of liquid in this direction is not limited, and a larger spraying range can be obtained. The size, structure, etc. of the liquid outlet gap 122 can be determined by the actual use requirements, and no limitation is made thereto.

[0044] Referring to Figure 3 and Figure 4 , the center position of the liquid outlet 1212 can refer to the position where the center of the projection area of the liquid outlet 1212 is located in the projection in the plane perpendicular to the height direction. The center position of the liquid inlet 1211 can refer to the position where the center of the projection area of the liquid inlet 1211 is located in the projection in the plane perpendicular to the height direction. The center position of the liquid outlet 1212 can be offset from the center position of the liquid inlet 1211, which means that the center position of the liquid outlet 1212 and the center position of the liquid inlet 1211 do not overlap in the projection in the plane perpendicular to the height direction, but there is a certain interval.

[0045] In the related art, the center positions of the liquid inlet and the liquid outlet are substantially overlapped in the projection in the plane perpendicular to the height direction, in other words, the center position of the liquid outlet is generally on a vertical line with the center position of the liquid inlet. In the present embodiment, the center position of the liquid outlet 1212 is offset from the center position of the liquid inlet 1211 towards the first direction, for example, Figure 4 , in Figure 4 , the straight line L1 is a vertical line passing through the center position of the liquid inlet 1211, and the straight line L2 is a vertical line passing through the center position of the liquid outlet 1212, and the center position of the liquid outlet 1212 is offset from the center position of the liquid inlet 1211 towards the first direction Figure 4The offset will cause the liquid out of the liquid outlet gap 122 to have a resultant force pointing to the first direction, the specific principle is as follows.

[0046] If the spray cavity 121 is abstractly divided into two cavities by a vertical plane passing through the center position of the liquid outlet 1212, the above-mentioned offset will cause the cavity volume on the side away from the first direction to be larger than the cavity volume on the side close to the first direction, thereby causing the liquid on the left side of the liquid outlet 1212 to be greater than the liquid on the right side of the liquid outlet 1212 when the spray liquid moves to the liquid outlet 1212, and the liquid on both sides will generate a resultant force pointing to the first direction in the horizontal direction after converging to the liquid outlet 1212, thereby causing the liquid curtain sprayed from the liquid outlet gap 122 to be inclined towards the first direction. The angle of inclination β is related to the above-mentioned offset distance D, specifically, within a certain range, the greater the offset distance D, the greater the angle of inclination β, and those skilled in the art can determine the offset distance D according to the actual use requirement, which is not limited.

[0047] Further, referring to Figure 3 and Figure 4 , the nozzle 12 is formed with two flow guide surfaces (123a, 123b) on the opposite sides of the width direction of the liquid outlet gap 122, and the liquid outlet gap 122 is formed by being sandwiched by the two flow guide surfaces (123a, 123b). At least one of the two flow guide surfaces (123a, 123b) can be inclined from the top end to the bottom end towards the first direction. The flow guide surface inclined from the top end to the bottom end towards the first direction helps to further guide the liquid to be inclined towards the first direction, and a better inclined spraying effect is obtained.

[0048] The two flow guide surfaces can be inclined from the top end to the bottom end towards the first direction, or only one flow guide surface can be inclined from the top end to the bottom end towards the first direction, and the specific angle of inclination can be determined by those skilled in the art according to the actual use requirement, which is not limited. In the case where the two flow guide surfaces are inclined from the top end to the bottom end towards the first direction, the inclination angles of the two flow guide surfaces can be the same or different.

[0049] In the embodiment, the positional relationship between the liquid inlet 1211 and the liquid outlet 1212 of the nozzle 12 is adjusted, so that the center of the liquid outlet 1212 is offset from the center of the liquid inlet 1211 towards the first direction, and at least one of the two flow guide surfaces is inclined from the top end to the bottom end towards the first direction, so that the spraying device 1 can stably spray liquid in an inclined manner. In addition to having a good inclined spraying effect, compared with the related art, the embodiment does not need to rotate the nozzle when spraying in an inclined manner, and only one or two flow guide surfaces of the nozzle need to be inclined, without the need for overall inclination (such as setting the spray cavity as an axis-tilted cavity), so that the structure is relatively simple and the manufacturing difficulty is relatively low.

[0050] The embodiments of the present application also provide a clothes treatment apparatus, which refers to Figures 8-11 The clothes treatment apparatus includes a drum assembly (not shown in the figure), an air duct housing 2, an evaporator 3, and the spraying device 1 provided by the embodiments of the present application. The air duct housing 2 has an air duct 23, which is in communication with the internal space of the drum assembly. The evaporator 3 is arranged in the air duct 23, and the liquid outlet gap 122 of the spraying device 1 is used to spray liquid towards the evaporator 3.

[0051] It should be noted that the evaporator 3 is part of a heat pump system, and the temperature of the surface of the evaporator 3 is relatively low, which is used to condense and dehumidify the airflow flowing through the air duct 23.

[0052] It should be noted that the use scenario of the spraying device 1 provided by the embodiments of the present application is not limited to the clothes treatment apparatus, and it is also applicable to spraying any object to be sprayed.

[0053] In some embodiments, one of the flow guide surfaces (123a, 123b) is inclined from the top end to the bottom end towards the first direction, and the other can be parallel to the height direction of the spraying device. The flow guide surfaces (123a, 123b) are parallel to the height direction of the spraying device 1, which is convenient for manufacturing, especially when the nozzle 12 is manufactured by injection molding, which can reduce the difficulty of mold opening and mold pulling.

[0054] In some embodiments, when one of the two flow guide surfaces (123a, 123b) is parallel to the height direction of the spraying device 1, and the other is inclined from the top end to the bottom end towards the first direction, the inclined flow guide surface can be the flow guide surface close to the first direction. Still taking Figure 3 for example, the first direction is the right side in the figure, and the flow guide surface 123a on the left side is parallel to the height direction of the spraying device 1, and the flow guide surface 123b on the right side is inclined from the top end to the bottom end towards the right side. In the embodiment, the effect of inclined spraying and the manufacturing difficulty can be considered.

[0055] In some embodiments, the flow guide surface (such as Figure 3The bottom end of the middle right deflector 123b) has an arc-shaped chamfer, which can cause the liquid to have a Coanda effect, thereby further guiding the liquid to be sprayed obliquely. The Coanda effect, also known as the wall effect or Coandă effect, can cause the liquid to have a tendency to flow along the surface of a convex object instead of its original flow direction. When there is surface friction between the liquid and the surface of the object through which the liquid flows (or fluid viscosity), as long as the curvature is not large, the fluid will flow along the surface of the object.

[0056] As an example, the bottom end of both deflectors can have an arc-shaped chamfer, or only the bottom end of the obliquely arranged deflector can have an arc-shaped chamfer.

[0057] In some embodiments, with reference to Figures 5-7 , the liquid outlet 1212 penetrates the spray cavity 121 in a second direction (the direction indicated by the arrow R2 in the figure), and the second direction is parallel to the length direction of the liquid outlet gap. That is, the liquid will not only be sprayed out from the bottom wall of the spray cavity 121, but also from the two side walls of the spray cavity 121 in the second direction, so that the sprayed liquid can form a fan-shaped liquid curtain.

[0058] In some embodiments, with reference to Figures 5-7 , the top wall of the liquid outlet gap 122 forms two diffusion surfaces (124a, 124b), and the two diffusion surfaces (124a, 124b) are respectively connected to the two sides of the liquid outlet 1212 in the second direction (the direction indicated by the arrow R2 in the figure). At least part of the two diffusion surfaces (124a, 124b) can extend obliquely away from each other. In this way, the liquid can be further guided to diffuse along the length direction of the liquid outlet gap 122, thereby covering a larger spraying range and achieving a better spraying effect.

[0059] As an example, the initial extension section of the diffusion surface can be obliquely extended, and the terminal extension end can be horizontally extended.

[0060] In some embodiments, with reference to Figure 6 , the terminal extension end of the diffusion surface (124a, 124b) can be flush with the bottom surface 11a of the shell 11, or the terminal extension end of the diffusion surface (124a, 124b) can be lower than the bottom surface 11a of the shell 11, so that the liquid flowing to the terminal end of the diffusion surface (124a, 124b) is not blocked by the shell 11, thereby improving the diffusion effect.

[0061] For example, assuming that the inclination angle of the diffusion surface (124a, 124b) is Figure 6 Figure 6 ​The angle between the middle diffusion surface (124a, 124b) and the horizontal direction is α, the diameter of the liquid inlet 1211 is ψd1, the length of the liquid outlet gap 122 is L, and the distance between the top of the diffusion surface (124a, 124b) and the bottom surface 11a of the shell 11 is H. Then the range of the angle α can be: tanh[2H / (L-ψd1)]≤α<90°.

[0062] Those skilled in the art can reasonably determine the inclination angle of the diffusion surface (124a, 124b) based on actual spraying requirements. Furthermore, when the spraying device 1 has multiple nozzles 12 arranged along the extension direction of the fluid channel 111, the spacing between the multiple nozzles 12 can be specifically determined based on the inclination angle, so that there will be no gaps between the spraying ranges of the multiple nozzles 12 and no excessive overlap.

[0063] In some embodiments, a portion of the inner surface of the spray cavity 121 may be an arcuate surface. For example, at least a portion of the spray cavity 121 may be hemispherical or hemispherical. The arcuate surface can guide the liquid in the spray cavity 121 to further squeeze each other, thereby increasing the combined force of the liquid in the liquid outlet gap 122 pointing in the first direction, thereby achieving a better spraying effect.

[0064] by Figure 3 For example, the upper half of the spray chamber 121 can be cylindrical, and the lower half can be hemispherical. Obviously, those skilled in the art will understand that the shape of the spray chamber 121 is not limited to this, and can also be prismatic or even irregular.

[0065] In some embodiments, as described above, the axis of the spray cavity 121 can be parallel to the height direction of the spray device 1, thereby reducing the difficulty of mold opening and demolding when the nozzle 12 is manufactured by injection molding. Figure 3 For example, the upper half of the spray chamber 121 is cylindrical, and the lower half is hemispherical. The central axis of the cylinder overlaps with the central axis of the hemispherical, and is parallel to the height direction of the spray device 1.

[0066] In some embodiments, reference Figure 1 、 2 5. The housing 11 may have a liquid inlet port 112 and a transition channel 113. The transition channel 113 connects the liquid inlet port 112 and the fluid channel 111. The cross-sectional area of ​​the liquid inlet port 112 may be larger than the cross-sectional area of ​​the fluid channel 111, and the cross-sectional area of ​​the transition channel 113 may decrease along the direction of liquid flow.

[0067] The transition passage 113 can on one hand make the cross-sectional area of the fluid passage 111 no longer limited by the cross-sectional area of the liquid inlet interface 112, so that the volume of the spraying device 1 can be smaller, suitable for use in narrow space. On the other hand, it can make the liquid entering the fluid passage 111 obtain higher liquid pressure and / or flow rate, improving the spraying effect.

[0068] The cross-sectional area of the transition passage 113 can continuously decrease along the liquid flow direction, or can not continuously decrease. In the case of continuously decreasing cross-sectional area of the transition passage 113 along the liquid flow direction, the cross-sectional area of the transition passage 113 can be uniformly smaller, or can not be uniformly smaller, and those skilled in the art can flexibly set it according to actual use requirements, which is not limited.

[0069] In some embodiments, the shell 11 can include a first sub-shell 114 and a second sub-shell 115, and the first sub-shell 114 and the second sub-shell 115 are butted along the height direction to define the fluid passage 111.

[0070] In some embodiments, the first sub-shell 114 and the second sub-shell 115 can be fusion welded together, so as to reduce the assembly difficulty of the spraying device 1 and improve the sealing performance of the shell 11. The nozzle 12 can be integrally formed with the second sub-shell 115, so as to further reduce the assembly difficulty of the spraying device 1 and increase the sealing performance and structural strength of the spraying device 1.

[0071] As an example, referring to Figure 3 In actual production process, the first sub-shell 114 and / or the second sub-shell 115 can be fusion welded on opposite sides of the fluid passage 111 and form a fusion rib 116 at the fusion position. The first sub-shell 114 and / or the second sub-shell 115 form a blocking rib structure 117 on opposite sides of the fluid passage 111, and the space between the two blocking rib structures 117 defines the fluid passage 111. The blocking rib structure 117 is spaced apart from the fusion rib 116 and defines a overflow groove 118. The overflow during the fusion process will enter the overflow groove 118 and be blocked by the blocking rib structure 117, and cannot enter the fluid passage 111, so as to ensure the smoothness of the fluid passage 111.

[0072] Obviously, those skilled in the art can understand that the assembly manner of the first sub-housing 114 and the second sub-housing 115 is not limited to this, and the butt joint of the first sub-housing 114 and the second sub-housing 115 can also be completed by means of bonding, welding, screw connection and the like. The welding manner of the first sub-housing 114 and the second sub-housing 115 is also not limited to this, and other structures (such as guide grooves and the like) can be used to avoid overflow into the fluid passage 111 in the welding process instead of the blocking rib structure 117 and the overflow groove 118. The assembly manner of the nozzle 12 and the second sub-housing 115 is also not limited to this, and the nozzle 12 can also be assembled onto the second sub-housing 115 by means of threaded connection, welding and the like.

[0073] In some embodiments, with reference to Figure 8 and Figure 10 In the laundry treating apparatus provided by the embodiments of the present application, the liquid outlet position of the liquid outlet gap 122 is located on the windward side of the evaporator 3, and the liquid outlet gap 122 can spray liquid obliquely towards the windward side of the evaporator 3. The liquid outlet position of the liquid outlet gap 122 can be higher than the top end surface of the evaporator 3, can be flush with the top end surface of the evaporator 3, or can be lower than the top end surface of the evaporator 3, which can be flexibly set by those skilled in the art according to the specific space layout inside the laundry treating apparatus.

[0074] Specifically, the spraying device 1 can be installed above the windward side (upstream of the gas flow direction in the air duct 23) of the evaporator 3, and the above-mentioned first direction can be directed towards the windward side of the evaporator 3, so that the liquid outlet gap 122 can spray liquid obliquely towards the windward side of the evaporator 3. In the embodiments, the occupation of the space on the top end of the evaporator 3 is reduced, and the structure of the entire laundry treating apparatus is more compact.

[0075] In some embodiments, the air duct housing 2 can specifically include a bottom shell 22 and a top cover 21, and the top cover 21 is arranged on the top side of the bottom shell 22. A part of the top cover 21 can be formed as the housing 11 of the spraying device 1, so that the installation structure related to the spraying device 1 can be further simplified, and the space required by the spraying device 1 can be reduced. The specific structure and connection manner of the bottom shell 22 and the top cover 21 can be determined by those skilled in the art according to actual use requirements, and will not be described here.

[0076] As an example, the spraying device 1 can include the first sub-housing 114 and the second sub-housing 115 described above, wherein a part of the top cover 21 can be formed as the first sub-housing 114, in other words, the first sub-housing 114 can be a part of the top cover 21.

[0077] In some embodiments, the spraying device 1 can also be arranged in the air duct 23, and the housing 11 thereof and the air duct housing 2 can be a split structure, so that the disassembly and maintenance of the spraying device 1 can be facilitated.

[0078] As an example, referring to Figure 11 , the top cover 21 of the air duct housing 2 can be provided with a mounting groove 211, and the housing 11 can be mounted in the mounting groove 211. The housing 11 can be mounted in the mounting groove 211 by means of, for example, adhesion, screw connection, welding, etc., and the person skilled in the art can choose according to the actual use requirements, which is not limited.

[0079] In some embodiments, referring to Figure 8 and Figure 9 , the internal space of the air duct housing 2 is divided into an air duct 23 and a liquid discharge cavity 24, the air duct 23 and the liquid discharge cavity 24 can be communicated through a flow channel 25, and the liquid sprayed by the spraying device 1 can flow into the liquid discharge cavity 24 through the flow channel 25.

[0080] It can be understood that the liquid sprayed by the spraying device 1 needs to be discharged to the outside of the air duct housing 2, and for this purpose, in the present embodiment, the internal space of the air duct housing 2 is divided into an air duct 23 and a liquid discharge cavity 24, and the liquid sprayed by the spraying device 1 can be discharged from the air duct housing 2 through the liquid discharge cavity 24, thereby meeting the discharge requirement. In addition, since the air duct 23 and the liquid discharge cavity 24 are separated from each other, the implementation of the liquid discharge function does not need to occupy the internal space of the air duct 23, avoiding the expansion of the air duct 23 for liquid discharge, thereby causing the gas flow efficiency to be reduced.

[0081] The division of the internal space of the air duct housing 2 can be achieved by providing one or more separation structures inside the air duct housing 2, and / or by means of the cooperation of the devices inside the air duct housing 2 with each other. For example, the air duct housing 2 can be provided with an evaporator 3 and a condenser, and the side plates of the evaporator 3 and the condenser can be connected with each other, so that the space at this part is divided.

[0082] As an example, the liquid discharge cavity 24 can be located at one side of the air duct 23, the nozzle 12 of the spraying device 1 can be located in the air duct 23, and the remaining structures (such as the liquid inlet interface 112, the transition passage 113, etc. as described above) can be located in the liquid discharge cavity 24, so that the space of the air duct 23 can be further compressed, and the efficiency of the gas flow in the air duct 23 can be improved.

[0083] In some embodiments, referring to Figure 9 , the bottom wall of the flow channel 25 extends downwardly from the end away from the liquid discharge cavity 24 to the end close to the liquid discharge cavity 24, so as to guide the liquid in the air duct 23 to the liquid discharge cavity 24, and obtain a better liquid discharge effect.

[0084] In some embodiments, the air duct housing 2 can include a bottom shell 22, a partition block 26 and a top cover 21, the top cover 21 is arranged on the top side of the bottom shell 22, the partition block 26 is arranged in the bottom shell 22, and the height of the top edge of the partition block 26 is lower than the height of the top edge of the bottom shell 22. The partition block 26 is upstream of the evaporator 3 in the air flow direction, the air duct 23 and the liquid discharge cavity 24 are located on opposite sides of the partition block 26, the bottom side of the spraying device is formed with a protrusion 13, and the bottom of the protrusion 13 is in contact with the top of the partition block 26, so that the air flow between the air duct 23 and the liquid discharge cavity 24 can be reduced, and the drying efficiency can be improved; the spraying device can also be supported.

[0085] It should be noted that the partition of the internal space of the air duct housing 2 is not completely realized by the partition block 26, and other structures may also be needed to partition the space at other positions in the air duct housing 2. Those skilled in the art can set structures for preventing air flow from flowing into the liquid discharge cavity 24 at these positions according to actual use requirements, and this is not limited.

[0086] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0087] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A spray device, characterized in that The spraying device comprises: a housing having a fluid passage; one or more nozzles arranged on one side of the housing, the nozzles having a spray cavity, a liquid outlet gap, the spray cavity having a liquid inlet and a liquid outlet, the spray cavity being in communication with the fluid passage through the liquid inlet and in communication with the liquid outlet gap through the liquid outlet; wherein the center position of the liquid outlet is offset towards a first direction compared to the center position of the liquid inlet, the first direction being parallel to the width direction of the liquid outlet gap; two flow guide surfaces are formed on opposite sides of the liquid outlet gap along the width direction, wherein at least one of the flow guide surfaces is inclined from the top end to the bottom end towards the first direction.

2. The spray device of claim 1, wherein one of the two flow guide surfaces is inclined from the top end to the bottom end towards the first direction, and the other is parallel to the height direction of the spraying device.

3. The spray device of claim 1, wherein the bottom end of the flow guide surface has an arc-shaped chamfer.

4. The spray device of claim 1, wherein the liquid outlet penetrates the spray cavity along a second direction, the second direction being parallel to the length direction of the liquid outlet gap.

5. The shower assembly of claim 4, wherein, the top wall of the liquid outlet gap forms two diffusion surfaces, the two diffusion surfaces being connected to opposite sides of the liquid outlet along the second direction, and at least part of the two diffusion surfaces are inclined to extend away from each other.

6. The spray device of claim 5, wherein the extension end of the diffusion surface is flush with the bottom surface of the housing, or the extension end of the diffusion surface is lower than the bottom surface of the housing.

7. The spray device of claim 1, wherein the housing has a liquid inlet interface and a transition passage, the transition passage being in communication with the liquid inlet interface and the fluid passage, wherein the cross-sectional area of the liquid inlet interface is larger than the cross-sectional area of the fluid passage, and the cross-sectional area of the transition passage decreases along the liquid flow direction.

8. The spray device of claim 1, wherein The housing comprises: a first sub-housing and a second sub-housing, the first sub-housing and the second sub-housing being butted along the height direction to define the fluid passage.

9. The spray device of claim 8, wherein, the first sub-housing and the second sub-housing are fused on opposite sides of the fluid passage and form a fusion rib at the fusion rib position, the first sub-housing and / or the second sub-housing form a blocking rib structure on opposite sides of the fluid passage, the space between the two blocking rib structures defines the fluid passage, and the blocking rib structure and the fusion rib are spaced apart and define a glue overflow groove. 10.A laundry treating apparatus, characterized by, The laundry treatment apparatus comprises: a drum assembly; an air duct housing having an air duct in communication with an internal space of the drum assembly; an evaporator arranged in the air duct; and the spraying device of any one of claims 1-9, the liquid outlet gap of the spraying device being used to spray liquid towards the evaporator. 11.The laundry treating apparatus according to claim 10, wherein, The liquid outlet position of the liquid outlet gap is located on the windward side of the evaporator, and the liquid outlet gap is used to spray liquid obliquely towards the windward side of the evaporator. 12.The laundry treating apparatus according to claim 10, wherein, The air duct housing comprises a bottom shell and a top cover, the top cover being arranged on the top side of the bottom shell, and a part of the top cover forms the housing. 13.The laundry treating apparatus according to claim 10, wherein, The spraying device is arranged in the air duct, and the housing and the air duct housing are in a split structure. 14.The laundry treating apparatus according to claim 10, wherein, The internal space of the air duct shell is divided into the air duct and the liquid discharge cavity, the bottom of the air duct has a flow channel communicating with the liquid discharge cavity, and the liquid sprayed by the spraying device enters the liquid discharge cavity through the flow channel. 15.The laundry treating apparatus according to claim 14, wherein, The bottom wall of the flow channel extends downwardly from one end away from the liquid discharge cavity to the other end close to the liquid discharge cavity, for guiding the liquid to the liquid discharge cavity. 16.The laundry treating apparatus according to claim 14, wherein, The air duct shell comprises a bottom shell, a partition block and a top cover, the top cover covers the top side of the bottom shell, the partition block is arranged in the bottom shell, the height of the top edge of the partition block is lower than the height of the top edge of the bottom shell, the partition block is upstream of the evaporator along the air flow direction, and the air duct and the liquid discharge cavity are located on opposite sides of the partition block. The bottom side of the spraying device is formed with a protruding portion, and the bottom of the protruding portion is in contact with the top of the partition block.

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