Spraying device and clothes processing equipment

Abstract

The embodiment of the utility model provides a spraying device and clothes processing equipment, and the spraying device comprises a housing which is provided with a fluid channel and one or more flushing holes, and the flushing holes are communicated with the fluid channel and penetrate through the bottom wall of the housing; the multiple nozzles are arranged on the bottom side of the shell at intervals in the first direction, at least one flushing hole is formed in the interval area between every two adjacent nozzles in the first direction, and the nozzles and the flushing holes are used for spraying liquid towards the to-be-sprayed object. In the embodiment of the utility model, the spraying effect of the spraying device is improved by virtue of the matching of the nozzles and the flushing holes.

Description

Technical Field

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

[0002] A spray device needs to be provided in a clothes processing device with a drying function, and the spray device is used to spray the evaporator so as to remove clothes hair and the like attached to the surface of the evaporator.

[0003] In the related art, a plurality of nozzles are arranged on the bottom side of the spray device, and the plurality of nozzles spray liquid toward the evaporator. However, a spray blind area is prone to occur, and the spray effect is poor. Utility Model Content

[0004] In view of this, embodiments of the present invention are intended to provide a spray device and a clothing processing apparatus that can solve or at least partially solve the above-mentioned problems.

[0005] The first aspect of an embodiment of the utility model provides a spray device, which includes: a shell, having a fluid channel and one or more flushing holes, wherein the flushing holes are connected to the fluid channel and pass through the bottom wall of the shell; a plurality of nozzles are arranged at intervals on the bottom side of the shell along a first direction, and at least one flushing hole is arranged in the interval area between two adjacent nozzles along the first direction, and the nozzles and the flushing holes are used to spray liquid toward the object to be sprayed.

[0006] In some embodiments, the spraying directions of the nozzle and the flushing hole are different.

[0007] In some embodiments, the nozzle has a spray cavity and a liquid outlet gap, the spray cavity connects the fluid channel and the liquid outlet gap, and the first direction is parallel to the length direction of the liquid outlet gap.

[0008] In some embodiments, the spray direction of the nozzle is inclined toward the second direction from the top to the bottom, and in the plane projection perpendicular to the first direction, the flushing port is located on one side of the liquid outlet position of the nozzle along the second direction, and the first direction, the second direction and the height direction are perpendicular to each other. In some embodiments, the nozzle has a spray chamber and a liquid outlet gap, the spray chamber connects the fluid channel and the liquid outlet gap, the first direction is parallel to the length direction of the liquid outlet gap, the spray chamber has a liquid inlet and a liquid outlet, the spray chamber is connected to the fluid channel through the liquid inlet, and is connected to the liquid outlet gap through the liquid outlet, wherein the center position of the liquid outlet is offset toward the second direction compared to the center position of the liquid inlet; the liquid outlet gap forms two guide surfaces on opposite sides along the second direction, wherein at least one of the guide surfaces is inclined toward the second direction from the top to the bottom.

[0009] 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.

[0010] In some embodiments, the housing has a flushing cavity, the flushing cavity is disposed on one side of the fluid channel along the second direction and is communicated with the fluid channel, and the flushing hole is disposed in the flushing cavity.

[0011] In some embodiments, the housing includes a first sub-housing and a second sub-housing, and the first sub-housing and the second sub-housing are butted together in a height direction to define the fluid channel and the flushing cavity.

[0012] In some embodiments, the first sub-shell and the second sub-shell are welded on opposite sides of the fluid channel and welding ribs are formed at the welding rib positions. The first sub-shell and / or the second sub-shell are formed with rib structures on opposite sides of the fluid channel. The welding ribs and the rib structures are arranged at intervals. The space between the two rib structures defines the fluid channel. The space between the rib structure and the welding rib on one side of the fluid channel along the second direction defines the flushing cavity.

[0013] In some embodiments, the rib structure on one side of the fluid channel along the second direction has a flushing channel extending along the second direction, and the flushing channel connects the fluid channel and the flushing cavity, wherein the cross-sectional area of ​​the flushing channel perpendicular to the liquid flow direction is smaller than the cross-sectional area of ​​the fluid channel.

[0014] In some embodiments, the shell has a liquid inlet interface and a transition channel, the transition channel connects the liquid inlet interface and the fluid channel, the cross-sectional area of ​​the liquid inlet interface is larger than the cross-sectional area of ​​the fluid channel, and the cross-sectional area of ​​the transition channel decreases along the liquid flow direction.

[0015] In some embodiments, the spray device includes one or more pressure relief ports, which are communicated with the transition channel and penetrate through the bottom wall of the shell.

[0016] The second aspect of the embodiments of the utility model provides a clothing processing device, comprising: a barrel assembly; an air duct shell, having an air duct, the air duct being connected to the internal space of the barrel assembly; an evaporator, arranged in the air duct; and a spray device as described in any of the above embodiments, the nozzle and flushing hole of the spray device being used to spray liquid toward the evaporator.

[0017] In some embodiments, in a plane projection perpendicular to the height direction of the laundry processing device, the flushing hole and the evaporator at least partially overlap, and the water outlet position of the nozzle does not overlap with the evaporator.

[0018] In some embodiments, the flushing hole is aligned with the windward side of the evaporator in the height direction.

[0019] In some embodiments, the liquid outlet position of the nozzle is located on the windward side of the evaporator, and the nozzle is used to spray the liquid obliquely toward the windward side of the evaporator.

[0020] In the spray device and clothing processing equipment provided by the embodiments of the utility model, the spray effect of the spray device is improved by means of the cooperation between the flushing hole and the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A bottom view of a spray device according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A side view of the middle spray device;

[0023] Figure 3 for Figure 1 An enlarged schematic diagram of the X portion of the middle spray device;

[0024] Figure 4 for Figure 1 AA section schematic diagram of the middle spray device;

[0025] Figure 5 for Figure 1 BB section schematic diagram of the middle spray device;

[0026] Figure 6It is a partial structural schematic diagram of a clothes processing device according to an embodiment of the utility model.

[0027] Description of Reference Numerals

[0028] 1. Spray device; 11. Shell; 111. Fluid channel; 112. Flushing hole; 113. Flushing chamber; 114. First sub-shell; 115. Second sub-shell; 116. Welding ribs; 117. Rib structure; 118. Flushing channel; 119. Liquid inlet interface; 120. Transition channel; 1201. Pressure relief port; 12. Nozzle; 121. Spray chamber; 122. Liquid outlet gap; 1211. Liquid inlet; 1212. Liquid outlet; (123a, 123b), guide surface; 2. Air duct shell; 21. Air duct; 3. Evaporator. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0031] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the specific corresponding schematic diagrams, which may be the left and right directions in normal use or not.

[0032] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0033] Reference Figure 1-Figure 5The embodiment of the utility model provides a spray device 1, which includes a housing 11 and a plurality of nozzles 12. The housing 11 has a fluid channel 111 and one or more flushing holes 112, and the flushing holes 112 are connected to the fluid channel 111 and penetrate the bottom wall of the housing 11.

[0034] The plurality of nozzles 12 are arranged along a first direction ( Figure 1-Figure 3 The nozzles 12 are arranged at intervals on the bottom side of the housing 11 (in the direction indicated by the middle arrow R1), and at least one flushing hole 112 is arranged in the interval area between two adjacent nozzles 12 along the first direction. Both the nozzles 12 and the flushing hole 112 are used to spray liquid toward the object to be sprayed.

[0035] It should be noted that in some cases, the length of the object to be sprayed in the first direction may be relatively long (for example, the object to be sprayed is an evaporator of a clothing processing device). If a continuous dense hole structure is used for liquid discharge, it is easy to be blocked. If a single nozzle is used for liquid discharge, the nozzle needs to have a relatively large length and liquid discharge volume, so that the spraying effect is greatly affected by the water pressure. Based on this, the spraying device 1 of this embodiment is provided with a plurality of nozzles 12 spaced apart along the first direction, thereby reducing the length and liquid discharge volume of each nozzle 12 to reduce the influence of the water pressure on the spraying effect.

[0036] Furthermore, in some cases, a blind area may appear between the liquid curtains of two adjacent nozzles 12 along the first direction (e.g., water pressure fluctuations in the fluid channel 111, differences in installation heights, and other factors may lead to the appearance of a blind area), and the liquid sprayed by the flushing hole 112 disposed in the interval area between the two adjacent nozzles 12 along the first direction will be able to at least partially fill the blind area, thereby improving the spraying effect. In addition, when the water pressure of the fluid channel 111 is high, the flushing hole 112 can also play a certain role in pressure relief, thereby ensuring the spraying effect.

[0037] It should be noted that the spacing area here refers to the entire area of ​​the bottom wall of the shell 11 between two adjacent nozzles 12. In other words, the flushing hole 112 and the liquid outlet position of the nozzle 12 may be on the same straight line along the first direction or may not be on the same straight line.

[0038] Each spacing area may be provided with only one flushing hole 112 or multiple flushing holes 112. The number and aperture of the flushing holes 112 provided in different spacing areas may be the same or different. Those skilled in the art may determine the number, position and aperture of the flushing holes 112 according to the distribution of the nozzles 12, the spray range of the nozzles 12 under ideal water pressure, the water pressure fluctuation range of the spray device 1, etc., so as to minimize the possibility of spray blind spots.

[0039] The present invention also provides a laundry processing device. Figure 5 The clothing treatment device comprises a barrel assembly (not shown in the figure), an air duct housing 2, an evaporator 3 and a spray device 1 provided in an embodiment of the utility model. The air duct housing 2 has an air duct 21, which is connected to the inner space of the barrel assembly. The evaporator 3 is arranged in the air duct 21. The liquid outlet gap 122 and the flushing hole 112 of the spray device 1 are used to spray liquid toward the evaporator 3.

[0040] It should be noted that the use scenario of the spray device 1 provided in the embodiment of the utility model is not limited to the above-mentioned clothing processing equipment, and it can be used to spray any other objects to be sprayed, without limitation.

[0041] In some embodiments, the nozzle 12 has a spray cavity 121 and a liquid outlet gap 122, the spray cavity 121 connects the fluid channel 111 and the liquid outlet gap 122, and the first direction is parallel to the length direction of the liquid outlet gap 122. The liquid outlet gap 122 here refers to a structure in which the size of the length direction (i.e., the extension direction of the liquid outlet gap 122) is significantly larger than the width direction, for example, the length direction is more than 3 times the width direction. In this way, the spray range of the nozzle 12 can be improved, and the possibility of a spray blind area can be further reduced.

[0042] Both ends of the liquid outlet gap 122 in the length direction can be open so that the flow of liquid in this direction will not be restricted, thereby increasing the coverage of the liquid curtain. Technical personnel in this field can determine the size, structure, etc. of the liquid outlet gap 122 according to actual usage requirements, and there is no limitation on this.

[0043] It should be noted that the structure of the nozzle 12 is not limited to this.

[0044] In some embodiments, the distances between at least a portion of the flushing holes 112 and two adjacent nozzles 12 along the first direction may be substantially the same. In other words, at least a portion of the flushing holes 112 may be disposed at the middle position of the spacing region along the first direction, which is a position where the injection blind spot is more likely to occur. Setting the flushing holes 112 here will enable the injection blind spot to be filled more reliably.

[0045] In some embodiments, the spraying directions of the nozzle 12 and the flushing hole 112 are different, so that the flushing hole 112 can fill the spraying blind area in directions other than the first direction, and in addition, the installation position of the spraying device in actual use can be more flexible.

[0046] The spray direction here specifically refers to the direction pointed by the center line of the liquid curtain sprayed by the nozzle 12 and the flushing hole 112 in the plane projection perpendicular to the first direction. Figure 4, the spray direction X1 of the nozzle 12 may be inclined, referring to Figure 5 , the spraying direction X2 of the flushing hole 112 can be vertical.

[0047] In some embodiments, the spray direction of the nozzle 12 is from the top to the bottom toward the second direction ( Figure 1 , Figure 3-Figure 5 The flushing hole 112 is located on one side of the liquid outlet position of the nozzle 12 along the second direction in the projection perpendicular to the height direction of the spray device 1, and the first direction, the second direction and the height direction are perpendicular to each other.

[0048] It can be understood that due to space limitations, the nozzle 12 of the spray device 1 may not be installed directly above the object to be sprayed. For this reason, in this embodiment, the spray direction of the nozzle 12 is set to be inclined from the top to the bottom toward the second direction, so that the nozzle 12 can be set above the side of the object to be sprayed during actual use, for example, set above the side of the windward side of the above-mentioned evaporator (in other words, the object to be sprayed may not be directly below the nozzle 12, but on the side of the nozzle 12 along the second direction), thereby reducing the occupation of the top space of the object to be sprayed. In some embodiments, in the plane projection perpendicular to the first direction, the flushing hole 112 is located on one side of the liquid outlet position of the nozzle 12 along the second direction, so that when the nozzle 12 is set on the side of the object to be sprayed, the flushing hole 112 can spray liquid to the object to be sprayed. The specific position of the flushing hole 112 can be determined by those skilled in the art according to the specific spray direction of the nozzle 12, the specific position relationship between the spray device 1 and the object to be sprayed, etc., and there is no limitation on this.

[0049] In some specific embodiments, the shell 11 is generally flat, and the nozzle 12 protrudes downward from the bottom surface of the shell 11. Taking the spraying of liquid to the evaporator 3 of the clothing processing device as an example, the shell 11 is located above the evaporator 3, that is, the shell 11 will occupy the space above the evaporator 3, and the nozzle 12 is located on the windward side of the evaporator 3. The height of the liquid outlet position of the nozzle 12 will not exceed the height of the top surface of the evaporator 3, and the position of the flushing hole 112 is higher than the height of the top surface of the evaporator, so that the internal space layout of the clothing processing device can be made more compact.

[0050] In some embodiments, the nozzle 12 has a spray cavity 121 and a liquid outlet gap 122 as an example. Figure 3 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 .

[0051] The center position of the liquid outlet 1212 is offset toward the second direction compared to the center position of the liquid inlet 1211. Two guide surfaces 123a and 123b are formed on opposite sides of the liquid outlet gap 122 along the second direction, wherein at least one of the guide surfaces 123a and 123b is inclined toward the second direction from the top to the bottom.

[0052] The center position of the liquid outlet 1212 may refer to the position of the center of the projection area of ​​the liquid outlet 1212 in the projection of the plane perpendicular to the height direction. The center position of the liquid inlet 1211 may refer to the position of the center of the projection area of ​​the liquid inlet 1211 in the projection of the plane perpendicular to the height direction. The center position of the liquid outlet 1212 is offset from the center position of the liquid inlet 1211, which may mean that in the projection of the plane perpendicular to the height direction, the center position of the liquid outlet 1212 does not overlap with the center position of the liquid inlet 1211, but there is a certain interval.

[0053] by Figure 4 For example, straight line L1 is a vertical line passing through the center position of the liquid inlet 1211, and L2 is a vertical line passing through the center position of the liquid outlet 1212. The center position of the liquid outlet 1212 is offset toward the second direction, and the offset distance is D. The offset will cause the liquid flowing out of the liquid outlet gap 122 to have a resultant force pointing to the second direction. The specific principle is as follows.

[0054] If the spray chamber 121 is abstractly divided into two chambers by a vertical plane passing through the center position of the liquid outlet 1212, the above-mentioned offset will cause the volume of the chamber on the side away from the second direction to be larger than the volume of the chamber on the side close to the second direction, which will cause the amount of liquid on the left side of the liquid outlet 1212 to be larger than the amount of liquid on the right side of the liquid outlet 1212 when the spray liquid moves to the liquid outlet 1212. After the liquids on both sides converge at the liquid outlet 1212, a combined force pointing to the second direction in the horizontal direction will be generated, which will cause the liquid curtain sprayed from the liquid outlet gap 122 to tilt toward the second direction. The tilt angle β is related to the above-mentioned offset distance D. Specifically, within a certain range, the greater the deviation distance D, the greater the tilt angle β. Technical personnel in this field can specifically determine the offset distance D based on actual usage requirements, and there is no limitation to this. Further, referring to Figure 4 The nozzle 12 is formed with two guide surfaces 123a and 123b on opposite sides of the liquid outlet gap 122 in the width direction, and the liquid outlet gap 122 is formed by sandwiching the two guide surfaces 123a and 123b. At least one of the two guide surfaces 123a and 123b can be inclined toward the second direction from the top to the bottom. The inclination of the guide surface from the top to the bottom toward the second direction helps to further guide the liquid to incline toward the second direction, thereby obtaining a better inclined spraying effect.

[0055] In this embodiment, the positional relationship between the liquid inlet 1211 and the liquid outlet 1212 of the nozzle 12 is adjusted so that the center position of the liquid outlet 1212 is offset toward the second direction compared to the center position of the liquid inlet 1211, and at least one of the two guide surfaces 123a and 123b is tilted from the top to the bottom toward the second direction, so that the nozzle 12 can tilt and spray liquid more stably. It should be noted that the implementation method of the nozzle 12 tilting and spraying liquid is not limited to this, such as the nozzle 12 can also be set as a tilted setting as a whole to achieve tilted spraying of liquid.

[0056] In some embodiments, one of the guide surfaces 123a and 123b is inclined toward the second direction from the top to the bottom, and the other may be parallel to the height direction of the spray device 1. Making one of the guide surfaces parallel to the height direction of the spray device 1 can facilitate the manufacture of the nozzle 12, especially when the nozzle 12 is manufactured by injection molding, it can reduce the difficulty of mold opening and demolding.

[0057] In some embodiments, when one of the two guide surfaces 123a, 123b is parallel to the height direction of the spray device 1 and the other is inclined toward the second direction from the top to the bottom, the inclined guide surface can be a guide surface close to the second direction).

[0058] In some embodiments, the guide surface (such as Figure 4 The bottom end of the flow guide surface 123b) on the right side of the middle has an arc chamfer, which causes the liquid to have a Coanda effect, thereby further guiding the liquid to spray obliquely. The Coanda effect, also known as the wall attachment effect or the Coanda effect, causes the liquid to have a tendency to leave its original flow direction and flow along the protruding surface of the object. When there is surface friction between the liquid and the surface of the object it flows through (it can also be said to be fluid viscosity), as long as the curvature is not large, the fluid will flow along the surface of the object.

[0059] As an example, the bottom ends of the two guide surfaces may both have arc-shaped chamfers, or only the bottom end of the inclined guide surface may have an arc-shaped chamfer.

[0060] In some embodiments, referring to the figure, the liquid outlet 1212 penetrates the spray chamber 121 along the second direction, that is, the liquid will not only be sprayed out from the bottom wall of the spray chamber 121, but also from the two side walls of the spray chamber 121 along the second direction. Thus, the sprayed liquid will be able to form a fan-shaped liquid curtain, further improving the spray range of the nozzle 12 and reducing the possibility of a spray blind area.

[0061] In some embodiments, reference Figure 5The housing 11 has a flushing chamber 113, which is disposed on one side of the fluid channel 111 along the second direction and communicates with the fluid channel 111, and the flushing hole 112 is disposed in the flushing chamber 113. In this embodiment, the flushing chamber 113 is disposed on one side of the fluid channel 111 along the second direction and the flushing hole 112 is disposed in the flushing chamber 113, so that the width of the fluid channel 111 along the second direction can be reduced so that it does not need to extend to the position where the flushing hole 112 is located, thereby increasing the water pressure in the fluid channel 111. The flushing chamber 113 and the fluid channel 111 can be communicated by using a suitable pipeline or other structure, which is not limited.

[0062] In some embodiments, the housing 11 includes a first sub-housing 114 and a second sub-housing 115 , and the first sub-housing 114 and the second sub-housing 115 are butted against each other in a height direction to define a fluid channel 111 and a flushing chamber 113 .

[0063] In some embodiments, still referring to Figure 5 The first sub-shell 114 and the second sub-shell 115 are welded on opposite sides of the fluid channel 111 and welding ribs 116 are formed at the welding positions. The first sub-shell 114 and / or the second sub-shell 115 are formed with rib structures 117 on opposite sides of the fluid channel 111. The welding ribs 116 and the rib structures 117 are arranged at intervals. The space between the two rib structures 117 defines the fluid channel 111. The space between the rib structure 117 and the welding rib 116 on one side of the fluid channel 111 along the second direction defines the flushing chamber 113.

[0064] It can be understood that glue may overflow between the first sub-shell 114 and the second sub-shell 115 during the welding process. If the overflowed glue enters the fluid channel 111, it may affect the smoothness of the liquid flow therein. For this reason, a retaining rib structure 117 is provided in this embodiment. The retaining rib structure 117 and the welding rib 116 are spaced to form a cavity, so that the overflowed glue during the welding process will flow into the cavity and will not enter the fluid channel 111. In this embodiment, the cavity defined by the space between the retaining rib structure 117 and the welding rib 116 on one side of the fluid channel 111 along the second direction is used as a flushing cavity 113 in addition to accommodating the overflowed glue, and the cavity on the other side is mainly used to accommodate the overflowed glue.

[0065] Obviously, in addition to welding, the first sub-shell 114 and the second sub-shell 115 can also be connected in other suitable ways, such as threaded connection, ultrasonic connection, etc. Some connection methods may not cause glue overflow, so there is no need to form cavities on both sides of the fluid channel 111 to accommodate glue overflow, and a flushing cavity 113 only needs to be set on one side of the fluid channel 111 along the second direction.

[0066] In some embodiments, still referring to Figure 5 The rib structure 117 on one side of the fluid channel 111 along the second direction may have a flushing channel 118 extending along the second direction, the flushing channel 118 connects the fluid channel 111 and the flushing cavity 113, and the cross-sectional area of ​​the flushing channel 118 perpendicular to the liquid flow direction is smaller than the cross-sectional area of ​​the fluid channel 111 perpendicular to the liquid flow direction, thereby effectively limiting the amount of liquid entering the flushing cavity 113 from the fluid channel 111, and preventing a large amount of liquid in the fluid channel 111 from entering the flushing cavity 113. The number of flushing channels 118 may be one or more, as an example, the flushing channels 118 may correspond one to one with the flushing holes 112, and in the plane projection in the vertical height direction, the flushing channels 118 and the corresponding flushing holes 112 may be in a straight line, thereby, when only a small amount of liquid enters the flushing cavity 113, each flushing hole 112 can still spray liquid.

[0067] Obviously, those skilled in the art will understand that the communication mode between the fluid channel 111 and the flushing chamber 113 is not limited thereto. For example, the retaining rib structure 117 may also have a gap extending along the first direction, and the fluid channel 111 and the flushing chamber 113 are connected by means of the gap.

[0068] In some embodiments, reference Figure 1 The shell 11 has a liquid inlet interface 119 and a transition channel 120. The transition channel 120 connects the liquid inlet interface 119 and the fluid channel 111. The cross-sectional area of ​​the liquid inlet interface 119 is larger than the cross-sectional area of ​​the fluid channel 111. The cross-sectional area of ​​the transition channel 120 decreases along the liquid flow direction.

[0069] On the one hand, the transition channel 120 can make the cross-sectional area of ​​the fluid channel 111 no longer limited by the cross-sectional area of ​​the liquid inlet interface 119, so that the volume of the spray device 1 can be smaller and suitable for use in a small space. On the other hand, the liquid can obtain a higher water pressure and / or flow rate after entering the fluid channel 111, thereby improving the spraying effect.

[0070] The cross-sectional area of ​​the transition channel 120 may be continuously reduced or discontinuously reduced along the liquid flow direction. In the case where the cross-sectional area of ​​the transition channel 120 is continuously reduced along the liquid flow direction, the cross-sectional area of ​​the transition channel 120 may be uniformly smaller or non-uniformly reduced, and those skilled in the art may flexibly set it according to actual use requirements, and there is no limitation to this.

[0071] It should be noted that the cross-sectional areas of the liquid inlet interface 119 , the transition channel 120 , and the fluid channel 111 described above all refer to the areas of the cross sections perpendicular to the liquid flow direction.

[0072] In some embodiments, the spray device 1 may include one or more pressure relief ports 1201, which are connected to the transition channel 120 and penetrate the bottom wall of the housing 11. Thus, pressure relief can be performed when the water pressure in the transition channel 120 is high, thereby improving the stability of the water pressure in the fluid channel 111. The specific arrangement of the pressure relief port 1201 can be determined by those skilled in the art according to actual use requirements, and is not limited thereto.

[0073] In some embodiments, taking a clothes processing device as an example, in a plane projection perpendicular to the height direction of the clothes processing device, the flushing hole 112 and the evaporator 3 at least partially overlap, and the water outlet position of the nozzle 12 does not overlap with the evaporator 3. That is, in this embodiment, the nozzle 12 will spray liquid obliquely toward the evaporator 3, while the flushing hole 112 can spray liquid approximately vertically toward the evaporator 3. In this way, the space utilization rate of the clothes processing device can be improved.

[0074] The specific implementation method of the nozzle 12 spraying liquid at an angle can refer to the description of the relevant parts above, which will not be repeated here.

[0075] In some embodiments, in the clothes processing device, the flushing hole 112 can be aligned in the height direction with the windward side of the evaporator 3. It can be understood that the clothing lint and the like attached to the surface of the evaporator 3 are mainly concentrated on the windward side of the evaporator 3, so aligning the flushing hole 112 with the windward side of the evaporator 3 in the height direction helps to improve the spraying effect.

[0076] The alignment here may mean that in a plane projection perpendicular to the height direction, any point in the projection area of ​​the flushing hole 112 overlaps with the projection of the windward side of the evaporator 3 .

[0077] In some embodiments, the liquid outlet position of the nozzle 12 is located on the windward side of the evaporator 3, and the nozzle 12 is used to spray liquid obliquely toward the windward side of the evaporator 3. Specifically, the nozzle 12 can be installed above the windward side of the evaporator 3 (upstream of the gas flow direction in the air duct 21), and the second direction can point to the windward side of the evaporator 3, so that the nozzle 12 can spray liquid obliquely toward the windward side of the evaporator 3. In this embodiment, the space occupied at the top of the evaporator 3 is reduced, making the structure of the entire clothing processing device more compact.

[0078] The liquid outlet position of the nozzle 12 can be higher than the top surface of the evaporator 3, or flush with the top surface of the evaporator 3, or lower than the top surface of the evaporator 3. Those skilled in the art can flexibly set it according to the specific spatial layout inside the clothing processing device.

[0079] In the description of the present utility model, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present utility model and the features of different embodiments or examples without contradiction.

[0080] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spray device, characterized in that: The spraying device comprises: A housing having a fluid passage and one or more flushing holes, wherein the flushing holes are connected to the fluid passage and penetrate through the bottom wall of the housing; A plurality of nozzles are arranged at intervals on the bottom side of the housing along a first direction, At least one flushing hole is provided in the interval area between two adjacent nozzles along the first direction, and the nozzles and the flushing hole are used to spray liquid toward the object to be sprayed.

2. The spray device according to claim 1, characterized in that: The spraying directions of the nozzle and the flushing hole are different.

3. The spray device according to claim 1, characterized in that: The nozzle has a spray cavity and a liquid outlet gap, the spray cavity is connected to the fluid channel and the liquid outlet gap, and the first direction is parallel to the length direction of the liquid outlet gap.

4. The spray device according to claim 1, characterized in that: The spraying direction of the nozzle is inclined toward the second direction from the top to the bottom. In the plane projection perpendicular to the first direction, the flushing hole is located on one side of the liquid outlet position of the nozzle along the second direction. The first direction, the second direction and the height direction are perpendicular to each other.

5. The spray device according to claim 4, characterized in that: The nozzle comprises a spray chamber and a liquid outlet gap, the spray chamber is connected to the fluid channel and the liquid outlet gap, the first direction is parallel to the length direction of the liquid outlet gap, the spray chamber comprises a liquid inlet and a liquid outlet, the spray chamber is connected to the fluid channel through the liquid inlet, and is connected to the liquid outlet gap through the liquid outlet, wherein the center position of the liquid outlet is offset toward the second direction compared to the center position of the liquid inlet; The liquid outlet gap forms two guide surfaces on opposite sides along the second direction, wherein at least one of the guide surfaces is inclined toward the second direction from the top end to the bottom end.

6. The spray device according to claim 5, characterized in that: 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.

7. The spray device according to claim 4, characterized in that: The housing has a flushing cavity, which is disposed on one side of the fluid channel along the second direction and communicated with the fluid channel, and the flushing hole is disposed in the flushing cavity.

8. The spray device according to claim 7, characterized in that: The housing comprises a first sub-housing and a second sub-housing, and the first sub-housing and the second sub-housing are butted against each other in a height direction to define the fluid channel and the flushing chamber.

9. The spray device according to claim 8, characterized in that: The first sub-shell and the second sub-shell are welded on opposite sides of the fluid channel and welding ribs are formed at the welding rib positions. The first sub-shell and / or the second sub-shell are formed with rib structures on opposite sides of the fluid channel. The welding ribs and the rib structures are arranged at intervals. The space between the two rib structures defines the fluid channel. The space between the rib structure and the welding rib on one side of the fluid channel along the second direction defines the flushing cavity.

10. The spray device according to claim 9, characterized in that: The rib structure on one side of the fluid channel along the second direction has a flushing channel extending along the second direction, and the flushing channel connects the fluid channel and the flushing cavity, wherein the cross-sectional area of ​​the flushing channel perpendicular to the liquid flow direction is smaller than the cross-sectional area of ​​the fluid channel.

11. The spray device according to claim 1, characterized in that: The shell has a liquid inlet interface and a transition channel, the transition channel connects the liquid inlet interface and the fluid channel, the cross-sectional area of ​​the liquid inlet interface is larger than the cross-sectional area of ​​the fluid channel, and the cross-sectional area of ​​the transition channel decreases along the liquid flow direction.

12. The spray device according to claim 11, characterized in that: The spray device includes one or more pressure relief ports, which are communicated with the transition channel and penetrate the bottom wall of the shell.

13. A clothes processing device, characterized in that: The laundry processing device comprises: Cylinder assembly; An air duct housing has an air duct, and the air duct is communicated with the inner space of the barrel assembly; an evaporator, disposed in the air duct; and The spray device according to any one of claims 1 to 12, wherein the nozzle and the flushing hole of the spray device are used to spray liquid toward the evaporator.

14. The clothes treating device according to claim 13, characterized in that: In a plane projection perpendicular to the height direction of the laundry processing device, the flushing hole and the evaporator at least partially overlap, and the water outlet position of the nozzle does not overlap with the evaporator.

15. The clothes treating device according to claim 13, characterized in that: The flushing hole is aligned with the windward side of the evaporator in the height direction.

16. The laundry processing device according to any one of claims 13 to 15, characterized in that: The liquid outlet position of the nozzle is located at the windward side of the evaporator, and the nozzle is used to spray liquid obliquely toward the windward side of the evaporator.

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