Spray head and clothes treatment equipment
By designing the nozzle's outlet and guide surface structure, the water jet from the nozzle can effectively wash away debris from the evaporator surface, solving the problem of lint adhering to the evaporator surface and improving heat exchange efficiency and cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI MEIZHI ELECTRIC CO LTD
- Filing Date
- 2024-10-17
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technologies, the evaporator surface of clothing processing equipment is prone to adhering to lint and other debris, which affects heat exchange performance and produces odors.
Design a nozzle with a specific outlet and guide surface. The sprayed water can effectively wash away debris on the surface of the evaporator. By setting the end guide surface and the flow expansion section, the direction and speed of the water flow can be controlled to ensure that the water flow can effectively cover the surface of the evaporator.
It improves the heat exchange efficiency of the evaporator, prevents odor generation, reduces the adhesion of debris, and enhances the cleaning effect.
Smart Images
Figure CN122013490A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of home appliance technology, and in particular to a spray nozzle and clothing treatment device. Background Technology
[0002] Clothing processing equipment (such as heat pump dryers) has heat exchange components such as evaporators and condensers installed in the heat exchange channels. These components convert the humid airflow from the clothing processing chamber into hot, dry airflow. The hot, dry airflow returns to the clothing processing chamber and exchanges heat with the wet clothes there, forming a new humid airflow. This humid airflow then flows out of the clothing processing chamber, and the cycle repeats to dry the clothes. Because the humid airflow carries lint and other debris, lint can easily accumulate on the heat exchange components after prolonged use. If this lint and other debris are not removed promptly, it will not only severely affect the heat exchange performance but also easily produce odors. Summary of the Invention
[0003] This application provides a nozzle and clothing treatment device that can solve the problem of lint and other debris adhering to the surface of the evaporator affecting the operation of the evaporator.
[0004] In a first aspect, embodiments of this application provide a nozzle for a clothing processing device. The nozzle has a first inlet wall and a second inlet wall. The first inlet wall includes a main flow surface and the main flow surface has a first water outlet edge. The second inlet wall has a second water outlet edge. The first water outlet edge and the second water outlet edge together form a water outlet. The water outlet is directed toward the evaporator of the clothing processing device.
[0005] In this process, the main flow surface is inclined to the side where the second inlet wall is located along the direction of gravity, and the nozzle also has an end guide surface, which is connected to the first water outlet edge and extends away from the first water outlet edge along the direction of gravity.
[0006] In some embodiments, the second water outlet edge and the first water outlet edge are on the same horizontal plane.
[0007] In some embodiments, the width of the end guide surface along the direction of gravity is M, 0 mm. <M≤10mm。
[0008] In some embodiments, the first inlet wall and the second inlet wall together form a water outlet section; The nozzle also has a flow-expanding section located on the side of the water outlet section away from the first inlet wall, and the flow-expanding section extends to connect with the water outlet section.
[0009] In some embodiments, the lateral width of the expansion section gradually increases along the direction adjacent to the outlet flow section; and / or, The flow-expanding section has a flow-expanding bottom surface, the flow-expanding bottom surface has a flow-expanding area connected to the second inlet wall, the nozzle has multiple flow-guiding plates, the multiple flow-guiding plates are disposed in the flow-expanding area, and the multiple flow-guiding plates are arranged at lateral intervals along the flow-expanding section; and / or, Along the direction close to the outlet, at least a portion of the lateral width of the water flow section gradually decreases.
[0010] In some embodiments, the nozzle has a water guide portion, the end of which extends into the water outlet section; The water guide section has a water-facing arc surface facing the second inlet wall, and the circle containing the water-facing arc surface has a vertical tangent, with the first water outlet edge located at the vertical tangent.
[0011] In some embodiments, the first inlet wall includes a flow guiding base surface, the flow guiding base surface being connected to the edge of the main flow guiding surface facing away from the end flow guiding surface; The water guiding part has a backwater surface facing the guiding base surface, and the backwater surface is attached to or spaced apart from the guiding base surface; the guiding base surface extends along the direction of gravity; or, in the direction of gravity, the guiding base surface is inclined to the side where the second inlet wall is located.
[0012] In some embodiments, the nozzle includes: A first housing has a water nozzle, the water nozzle having a first inlet wall and a second inlet wall, the first inlet wall and the second inlet wall together forming a water outlet section; the first housing also has a flow-expanding bottom surface connected to the second inlet wall; The second housing has a water guiding section and a flow-expanding top surface connected to the surface of the water guiding section; The second housing is installed on the first housing. The bottom surface of the flow amplification and the top surface of the flow amplification are arranged opposite each other along the direction of gravity. The water guide extends into the water outlet section to guide the fluid in the flow amplification section to flow towards the water outlet.
[0013] Secondly, this application provides a garment processing device, including a nozzle, a cavity shell, and an evaporator as described above. The cavity shell has a heat exchange channel; the evaporator is disposed in the heat exchange channel and installed in the cavity shell; the nozzle is installed in the cavity shell, and the outlet of the nozzle is connected to the heat exchange channel and is oriented towards the evaporator.
[0014] In some embodiments, the evaporator has a windward surface that forms an angle with the horizontal direction. In the direction of gravity, the windward surface is located below the water outlet, and the projection of the water outlet is entirely within the projection area of the evaporator.
[0015] In some embodiments, the edge of the windward side facing the outlet forms a first windward edge, and in the horizontal direction, the minimum distance from the outlet to the first windward edge is L1, where 0mm≤L1≤3mm.
[0016] In some embodiments, the first inlet wall and the second inlet wall together form a water outlet section; The cavity shell has a water collection tank that communicates with the heat exchange channel, and the water collection tank collects the water flowing down from the evaporator; The garment processing equipment also includes a water pump, which is installed in the cavity housing and is connected to the water collection tank and the water outlet channel, respectively, and is configured to transport the water in the water collection tank to the water outlet channel.
[0017] Based on the nozzle and clothing treatment device of this application embodiment, by setting the area between the first and second inlet walls, far from the outlet, to have more space for accommodating water flow, and the water flow in this area experiences low pressure, while the area near the outlet experiences high pressure due to the smaller space, the water flow experiences a large pressure difference between the different areas between the first and second inlet walls. This results in a high velocity of the water flow ejected from the outlet, which can more effectively wash away debris on the evaporator surface. By setting the end guide surface to extend along the direction of gravity, the water flow ejected from the outlet is guided to flow in the direction of gravity, and the excessive divergence angle of the water flow ejected from the outlet is prevented from causing some water flow to fail to reach the evaporator surface and thus resulting in waste. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the nozzle and heat exchange assembly installed relative to the air duct cover plate according to one embodiment of this application; Figure 2 This is a cross-sectional view of the installation of a nozzle and a heat exchange assembly relative to a duct cover plate according to an embodiment of this application. Figure 3 for Figure 2 A magnified view of a section at point M; Figure 4 This is a partial cross-sectional view of a second housing mounted on a first housing according to an embodiment of this application; Figure 5 This is a cross-sectional schematic diagram of a nozzle according to an embodiment of this application; Figure 6 A partial cross-sectional view showing that the main flow surface and the end flow surface of the first housing are coplanar in one embodiment of this application; Figure 7 This is a partial cross-sectional view of the first housing in one embodiment of the present application, showing that the main flow surface and the end flow surface of the housing are arranged at an angle. Figure 8 This is a top view of the nozzle structure according to one embodiment of this application; Figure 9 This is a three-dimensional structural diagram of a nozzle and duct cover according to an embodiment of this application; Figure 10 This is a three-dimensional structural diagram of the inner barrel installed relative to the cavity shell according to an embodiment of this application.
[0020] Figure label: 100. Inner tub; 200, Heat exchange assembly; 210, Evaporator; 211, Air-facing side; 211a, First air-facing edge; 212, Rear side; 220, Condenser; 320, Nozzle; 3201, Water flow chamber; 3240, Outlet; 320b, Outlet section; 320c, Flow expansion section; 3204, Bottom surface of the flow expansion section; 3205, Top surface of the flow expansion section; 320d, Inlet section; 324, First shell; 3224, First main plate; 3242, First flange; 3041, First inlet wall; 324a, Main flow surface; 324b, Flow guide base surface; 324c, First outlet edge; 324d, End flow guide surface; 324e, Windproof edge; 3042, Second inlet wall; 324f, Second outlet edge; 324g, Outlet end wall; 3241, Flow guide plate; 3248, Support plate; 325. Second housing; 3250. Second main board; 3242. Second flange; 3251. Water guide section; 325a. Water-facing arc surface; 325b. Water-repellent surface; 400. Chamber shell; 401. Heat exchange channel; 401a. Return air zone; 401b. Cooling zone; 401c. Heating zone; 401d. Air outlet zone; 410. Air duct base; 420. Air duct cover; 421. Docking opening; 600, Valve body; 610, First port; 620, Second port; 630, Third port. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0022] The inventors discovered that clothing processing equipment (such as heat pump dryers) has heat exchange components such as evaporators and condensers installed in the heat exchange channel. These components dry and heat the humid airflow returning from the clothing processing chamber, forming a high-temperature airflow that is then sent into the processing chamber. This cycle repeats to dry the clothes. Because the humid airflow returning from the processing chamber carries lint and other debris, this debris easily adheres to the surface of the heat exchange components. If this debris is not cleaned promptly, it will not only severely affect the heat exchange performance but also easily produce odors. Based on this, this application provides a clothing processing device, such as... Figure 1 As shown, the garment treatment device includes a heat exchange component 200 and a nozzle 320. The water jet from the nozzle 320 is used to remove lint and other debris from the surface of the heat exchange component 200.
[0023] The garment handling device also includes a housing, such as Figure 1 and Figure 2 As shown, the casing has a heat exchange channel 401, and a heat exchange assembly 200 is disposed in the heat exchange channel 401. The heat exchange assembly 200 includes an evaporator 210, which is used to cool the airflow in the heat exchange channel 401 to condense water vapor in the heat exchange channel 401 and reduce the humidity of the airflow in the heat exchange channel 401. The heat exchange assembly 200 also includes a condenser 220, which is used to heat the airflow in the heat exchange channel 401 to increase the temperature of the airflow in the heat exchange channel 401. Through the cooperation of the condenser 220 and the evaporator 210, the humid airflow in the heat exchange channel 401 is converted into dry, high-temperature gas for output.
[0024] like Figure 2 As shown, the heat exchange channel 401 may include a return air zone 401a, a cooling zone 401b, a heating zone 401c, and an outlet air zone 401d arranged sequentially. The evaporator 210 is located in the cooling zone 401b, and the condenser 220 is located in the heating zone 401c. The humid airflow entering the heat exchange channel 401 can first enter the cooling zone 401b and be cooled by the evaporator 210, then enter the heating zone 401c and be heated by the condenser 220 before flowing to the outlet air zone 401d, and finally flow out of the heat exchange channel 401.
[0025] The garment processing equipment also includes an inner tub with a garment processing chamber for accommodating garments. The garment processing equipment has a washing mode and a drying mode. In the washing mode, the inner tub can rotate around its central axis to wash the garments, and the garment processing chamber is sealed between the return air zone 401a and the outlet air zone 401d. In the drying mode, the garment processing chamber is connected to the return air zone 401a and the outlet air zone 401d, allowing the airflow within the garment processing chamber to sequentially pass through the return air zone 401a, the cooling zone 401b, the heating zone 401c, and the outlet air zone 401d before returning to the garment processing chamber, thereby drying the garments within the garment processing chamber.
[0026] Understandably, since the evaporator 210 is located at the front of the airflow, the humid airflow returning from the clothing processing chamber first comes into contact with the evaporator 210. The humid airflow carries debris such as lint, which easily adheres to the surface of the evaporator 210. Especially on the windward side 211 of the evaporator 210, a larger amount of debris such as lint will be adsorbed. If the debris such as lint on the evaporator 210 is not removed in time, it will seriously affect the heat exchange performance.
[0027] like Figure 2 As shown, the nozzle 320 also has a water flow cavity 3201, which has a water outlet 3240. The water outlet 3240 is connected to the heat exchange channel 401 and can deliver water into the water flow cavity 3201 and spray it out through the water outlet 3240 to wash the heat exchange components and other structures in the heat exchange channel 401, and wash off the lint and other debris adhering to the heat exchange components and other structures, thereby improving the heat exchange efficiency of the heat exchange components.
[0028] The evaporator 210 has a windward surface 211 facing the return air zone 401a. The windward surface 211 forms an angle with the horizontal direction S to ensure that it has a suitable area for contact with the airflow. However, this also presents the problem that a large amount of debris will adhere to the windward surface 211. In this embodiment, the water outlet 3240 is positioned adjacent to the windward surface 211 so that the water flow from the water outlet 3240 can wash away the debris adhering to the windward surface 211.
[0029] like Figure 2 As shown, the evaporator 210 also has a rear side 212 facing away from the windward side 211. In the direction of gravity G, the windward side 211 is located below the outlet 3240, and in the horizontal direction S, at least a portion of the outlet 3240 is located behind the windward side 211.
[0030] In this embodiment, the water outlet 3240 is located above the windward side 211 and is at least partially positioned towards the portion between the windward side 211 and the rear side 212 of the evaporator 210. The water flowing out of the water outlet 3240 can flow directly to the surface of the evaporator 210 under the action of gravity, rinsing the surface of the evaporator 210 to wash away debris. Therefore, the clothing treatment device in this embodiment can rinse the surface of the evaporator 210 without the flow of air in the heat exchange channel 401, without the need for airflow to drive the water flow to the windward side 211. The water flow sprayed from the water outlet 3240 in this application is more stable.
[0031] Furthermore, the method of using airflow to drive water flow to the windward side 211 can lead to debris adhering tightly to the surface of the evaporator 210, or even embedding itself in the gaps of the evaporator 210, due to the pressure of the airflow. In this case, spraying water onto the windward side 211 will make it difficult to wash away some of the debris, affecting the cleaning effect. In order to make the water flow from the outlet 3240 more accurately spray onto the evaporation surface, the outlet 3240 needs to be oriented towards the windward side 211. For example, a structural component with the outlet 3240 can be installed extending to the outside of the windward side 211. This part of the structural component overlaps with the windward side 211 in the horizontal direction S, which will interfere with the airflow, increase wind resistance, and also block the airflow from flowing past the side of the evaporator 210, reducing the heat exchange efficiency. In this embodiment, the water outlet 3240 is located above the windward surface 211. In the direction of gravity G, the water outlet 3240 is spaced apart from the evaporator 210, so that the airflow reaching the windward surface 211 can bypass the evaporator 210, resulting in smooth airflow and high heat exchange efficiency.
[0032] In some embodiments, the water flow sprayed from the outlet 3240 is divergent. In the direction of gravity G, the outlet 3240 and the evaporator 210 are spaced apart, so that the water flow sprayed from the outlet 3240 can cover more areas and clean more areas of the outer surface of the evaporator 210.
[0033] In some embodiments, the water outlet 3240 is located between the windward side 211 and the rear side 212, so that the projection of the water outlet 3240 is entirely within the projection area of the evaporator 210. Specifically, in the horizontal direction S, the distance from the water outlet 3240 to the windward side 211 is less than the distance from the water outlet 3240 to the rear side 212. By positioning the water outlet 3240 adjacent to the windward side 211, more of the water jet from the water outlet 3240 can flow onto the windward side 211, washing away any debris adhering to the windward side 211.
[0034] In some embodiments, such as Figure 3 As shown, the edge of the windward surface 211 facing the outlet 3240 forms a first windward edge 211a. In the horizontal direction S, the distance from the outlet 3240 to the first windward edge 211a is L1, 0mm≤L1≤3mm. Within this distance range, the water flow sprayed from the outlet 3240 can wash the windward surface 211 of the evaporator 210 and the surface adjacent to the windward surface 211. Most of the water flow sprayed from the outlet 3240 can reach the outer surface of the evaporator 210, thereby improving the efficiency of cleaning the debris on the outer surface of the evaporator 210.
[0035] In some embodiments, the housing has a first water outlet edge 324c and a second water outlet edge 324f. The first water outlet edge 324c and the second water outlet edge 324f enclose a water outlet 3240. In the horizontal direction S, the second water outlet edge 324f is located on the side of the first water outlet edge 324c away from the windward surface 211. L1 can be the distance from the first water outlet edge 324c to the first windward edge 211a in the horizontal direction S. In the horizontal direction S, the distance from the second water outlet edge 324f to the first windward edge 211a is L2. Optionally, 0mm < L2 ≤ 3mm, and L1 < L2.
[0036] Since the water outlet 3240 is connected to the heat exchange flow channel 401, when the air flow in the heat exchange flow channel 401 flows from the return air area 401a to the air outlet area 401d, there is a tendency for the air flow that enters the cooling area 401b from the return air area 401a to flow back into the water outlet 3240, interfering with the flow stability of the air flow in the heat exchange flow channel 401. As Figure 4 shown, in some embodiments, the housing is provided with an end guide surface 324d. The end guide surface 324d is connected to the first water outlet edge 324c, and the end guide surface 324d extends along the gravity direction G towards the side where the evaporator 210 is located. The end guide surface 324d protrudes from the plane where the first water outlet edge 324c and the second water outlet edge 324f are located, blocking the backflow of the air flow that enters the cooling area 401b from the return air area 401a into the water outlet 3240. In addition, the end guide surface 324d is arranged to extend along the gravity direction G, guiding the water flow ejected from the water outlet 3240 to flow along the gravity direction G, so that more of the water flow ejected from the water outlet 3240 can reach the windward surface 211.
[0037] As Figure 3 and Figure 4 shown, the end guide surface 324d has a wind blocking edge 324e. The wind blocking edge 324e is located on the side of the first water outlet edge 324c facing the evaporator 210. The wind blocking edge 324e and the second water outlet edge 324f are respectively arranged at intervals from the evaporator 210, and in the gravity direction G, the distance from the wind blocking edge 324e to the windward surface 211 is less than the distance from the second water outlet edge 324f to the windward surface 211. Thus, when the air flow flows from the return air area 401a to the cooling area 401b, the end guide surface 324d can better block the backflow of the air flow into the water outlet 3240.
[0038] In some embodiments, the width of the end guide surface 324d along the gravity direction is M, 0mm < M ≤ 10mm. Within this width range, the end guide surface 324d can play a role in blocking the backflow of the air flow into the water outlet 3240, while guiding the water ejected from the water outlet 3240 to be sprayed onto the surface of the evaporator 210, and having a relatively small restriction on the spraying range of the water ejected from the water outlet 3240.
[0039] In some embodiments, the first water outlet edge 324c and the second water outlet edge 324f are located in the same plane parallel to the horizontal plane, which facilitates cooperation with the end guide surface 324d, so that the water flow sprayed from the outlet 3240 reaches the surface of the evaporator 210 at a suitable flow rate and angle. Optionally, the nozzle 320 has a water outlet end wall 324g connected to the second water outlet edge 324f. The water outlet end wall 324g extends in a direction away from the first water outlet edge 324c, and the water outlet end wall 324g is a plane parallel to the horizontal plane. The first water outlet edge 324c and the second water outlet edge 324f are located in the plane where the water outlet end wall 324g is located.
[0040] Of course, in some other embodiments, the first water outlet edge 324c and the second water outlet edge 324f may be located in the same plane at an angle to the horizontal plane. For example, in the direction of gravity G, the distance from the first water outlet edge 324c to the first windward edge 211a is greater than the distance from the second water outlet edge 324f to the first windward edge 211a, or the distance from the first water outlet edge 324c to the first windward edge 211a is less than the distance from the second water outlet edge 324f to the first windward edge 211a.
[0041] The evaporator 210 also has a top wall surface, which is set at an angle to the windward surface 211. The water outlet 3240 faces the top wall surface of the evaporator 210. The water flow sprayed from the water outlet 3240 has a certain speed. Part of the water flow sprayed from the water outlet 3240 reaches the top wall surface of the evaporator 210 and flows to the windward surface 211 to wash away the debris attached to the surface of the evaporator 210.
[0042] In some embodiments, the top wall of the evaporator 210 is perpendicular to the windward side 211; or, in the direction of gravity G, the area of the top wall adjacent to the windward side 211 is inclined away from the outlet 3240 so that the water sprayed onto the top wall can flow down to the windward side 211; or, the evaporator 210 has a space connecting the top wall and the windward side 211, through which the water sprayed onto the top wall can flow to the windward side 211.
[0043] like Figure 5As shown, the nozzle 320 has a water outlet section 320b and a first inlet wall 3041 and a second inlet wall 3042 defining the water outlet section 320b. In the horizontal direction S, the second inlet wall 3042 is located on the side of the first inlet wall 3041 away from the windward side 211. The first inlet wall 3041 has a first water outlet edge 324c facing the evaporator 210, and the second inlet wall 3042 has a second water outlet edge 324f facing the evaporator 210. The fluid entering the water flow cavity 3201 is finally sprayed out from the outlet 3240 through the water outlet section 320b. Optionally, when the nozzle 320 also has an end guide surface 324d, the first inlet wall 3041 is provided to have an end guide surface 324d connected to the first water outlet edge 324c.
[0044] In some embodiments, the shape of the water outlet section 320b can be adjusted by setting the surface profiles of the first inlet wall 3041 and the second inlet wall 3042, thereby adjusting the flow velocity and direction of the water jet ejected from the outlet 3240. Optionally, along the direction of gravity G, at least a portion of the distance between the first inlet wall 3041 (except for the portion having the end guide surface 324d) and the second inlet wall 3042 gradually decreases in the horizontal direction S, and the pressure on the water jet entering the water outlet section 320b along the direction of gravity G gradually increases, thereby enabling the water jet to be ejected from the outlet 3240 at a greater speed.
[0045] In some embodiments, along the gravity direction G, at least a portion of the first inlet wall 3041 gradually increases the distance from the windward surface 211 in the horizontal direction S, while the distance from the second inlet wall 3042 to the windward surface 211 in the horizontal direction S gradually decreases or remains constant. In some embodiments, along the gravity direction G, at least a portion of the second inlet wall 3042 gradually decreases the distance from the windward surface 211 in the horizontal direction S, while the distance from the first inlet wall 3041 to the windward surface 211 in the horizontal direction S gradually increases or remains constant. In some embodiments, along the gravity direction G, at least a portion of the first inlet wall 3041 gradually increases the distance from the windward surface 211 in the horizontal direction S, while the distance from the second inlet wall 3042 gradually decreases. By employing the above methods, it is possible to achieve a gradual decrease in the horizontal distance S between at least a portion of the first inlet wall 3041 (excluding the portion with the end guide surface 324d) and the second inlet wall 3042 along the gravity direction G.
[0046] In some embodiments, such as Figure 5As shown, the nozzle 320 has an inlet section 320d and a diffuser section 320c. The diffuser section 320c connects the inlet section 320d and the outlet section 320b, and the diffuser section 320c is located horizontally on the side of the outlet section 320b away from the return air zone 401a, so that the water in the diffuser section 320c flows into the outlet section 320b on the side away from the first inlet wall 3041. Optionally, the diffuser section 320c is located above the heating zone 401c and cooling zone 401b of the heat exchange channel 401 to plan the position of the water flow cavity 3201, making the casing structure compact and facilitating the installation of other structural components of the clothing processing equipment. At this time, at least a portion of the second inlet wall 3042 can be configured to gradually decrease the distance from the horizontal direction S to the windward side 211, so that the second inlet wall 3042 can guide the water flow smoothly to the outlet 3240.
[0047] In some embodiments, such as Figure 6 As shown, the first inlet wall 3041 includes a main flow surface 324a, which has a first outlet edge 324c. Along the direction of gravity G, the distance from the main flow surface 324a to the windward surface 211 in the horizontal direction S remains unchanged. At this time, the main flow surface 324a and the end guide surface 324d are on the same plane. After reaching the main flow surface 324a, part of the water flow entering the outlet section 320b flows to the end guide surface 324d and then to the surface of the evaporator 210, and the flow path is smooth.
[0048] In some embodiments, such as Figure 7 As shown, the first inlet wall 3041 includes a main flow surface 324a, which has a first outlet edge 324c. Along the direction of gravity G, the distance from the main flow surface 324a to the windward side 211 in the horizontal direction S gradually increases. That is, the main flow surface 324a is inclined to the side where the second inlet wall 3042 is located, so that the outlet section 320b has more space to accommodate the water flow in the area away from the outlet 3240, and the water flow in this area is under low pressure. When the water flow reaches the area of the outlet section 320b near the outlet 3240, the space is small and the water flow is under high pressure, which makes the pressure difference of the water flow in different areas of the inlet section 320d large, so that the speed of the water flow ejected from the outlet 3240 is high, which can more powerfully wash away the debris on the surface of the evaporator 210. The water jet from the outlet 3240 has a certain speed and is also divergent. The end guide surface 324d extends along the direction of gravity G and is set at an angle to the main flow surface 324a. By limiting the end guide surface 324d, the divergence angle of the water jet from the outlet 3240 can be prevented from being too large, which would cause some water to be sprayed into the return air zone 401a and fail to flow to the surface of the evaporator 210, resulting in waste. This allows more water to flow to the surface of the evaporator 210, improving the rinsing efficiency.
[0049] Please refer to the following: Figure 4 The nozzle 320 has a water guiding section 3251, the end of which extends into the water outlet section 320b. The walls of the inlet section 320d, the expansion section 320c, the outlet section 320b, and the water guiding section 3251 together define the water outlet cavity 3201. The water guiding section 3251 is used to guide the water flow from the expansion section 320c to smoothly enter the outlet section 320b.
[0050] In some embodiments, the expansion section 320c is located on the side of the outlet section 320b away from the first inlet wall 3041. When the main flow surface 324a is set to be inclined along the gravity direction G towards the side where the second inlet wall 3042 is located, the inclined main flow surface 324a can also reserve an area for water flow buffering, preventing the water flow from the expansion section 320c into the outlet section 320b from directly impacting the first inlet wall 3041 and causing water flow turbulence, so that the water pressure between the second inlet wall 3042 and the main flow surface 324a is small, which facilitates the smooth flow of water into the outlet section 320b.
[0051] Please refer to the following: Figure 4 In some embodiments, the water guide 3251 has a water-facing arc surface 325a facing the second inlet wall 3042. The water flow first enters the outlet section 320b from the space between the second inlet wall 3042 and the water-facing arc surface 325a, then flows to the gap between the second inlet wall 3042 and the main flow surface 324a, and finally sprays out through the outlet 3240. The water-facing arc surface 325a can guide the water flow entering the outlet section 320b to change direction, so that the water flow entering the outlet section 320b can reach the outlet 3240 more smoothly and reduce flow resistance. The circle containing the water-facing arc surface 325a has a vertical tangent X, and the first water outlet edge 324c is located on the vertical tangent X. The position of the first water outlet edge 324c relative to the water-facing arc surface 325a is appropriate. Under the guidance of the water-facing arc surface 325a, the water flow mainly flows out of the outlet 3240 along the direction of gravity G. Even under the action of water pressure, the water flow ejected from the outlet 3240 is divergent, which makes it easy to control the direction of the water flow ejected from the outlet 3240.
[0052] The water guide portion 3251 has a backwater surface 325b facing the first inlet wall 3041 and a transition arc surface connecting the backwater surface 325b and the water-facing arc surface 325a. The first inlet wall 3041 has a flow guide base surface 324b, which is connected to the edge of the main flow surface 324a away from the first outlet edge 324e. The backwater surface 325b and the flow guide base surface 324b of the first inlet wall 3041 are fitted together to prevent water from entering the area between the backwater surface 325b and the flow guide base surface 324b. In some embodiments, the flow guide base surface 324b extends along the direction of gravity, or, along the direction of gravity, the flow guide base surface 324b is inclined toward the side where the second inlet wall 3042 is located, so that the water guide portion 3251 can smoothly extend into the outlet section 320b and facilitate assembly.
[0053] The expansion section 320c has an expansion bottom surface 3204 that is connected to the second inlet wall 3042. Please refer to [further details]. Figure 5 Along the direction from the inlet section 320d to the outlet section 320b, at least a portion of the expansion bottom surface 3204 is inclined toward one side of the evaporator 210. Optionally, the expansion bottom surface 3204 includes an expansion region, an intermediate region, and an inlet region. The intermediate region is connected between the expansion region and the inlet region. The expansion region is connected to the second inlet wall 3042. At least one of the expansion region, the intermediate region, and the inlet region is inclined toward one side of the evaporator 210 so that the water flow in the expansion section 320c can flow smoothly into the outlet section 320b by gravity.
[0054] In some embodiments, the expansion region is located above the cooling region 401b in the gravity direction G, and the inlet region is located above the heating region 401c in the gravity direction G, pointing from the inlet section 320d to the outlet section 320b. The middle region of the expansion bottom surface 3204 is inclined towards the side of the evaporator 210 so that the inlet region is higher than the expansion region in the gravity direction G, which facilitates the smooth flow of water from the inlet section 320d to the outlet section 320b. At the same time, it makes it easier to provide more space for the heating region 401c, so that the heating region 401c is larger in the gravity direction G, thereby accommodating a larger condenser 220.
[0055] Along the direction from the inlet section 320d to the outlet section 320b (closer to the outlet section 320b), at least part of the lateral width of the expansion section 320c gradually increases. On the one hand, this facilitates matching the size of the evaporator 210, resulting in a larger lateral width of the outlet 3240, allowing for a larger area to be used to rinse the surface of the evaporator 210. On the other hand, the lateral width of the area of the expansion section 320c away from the outlet section 320b is relatively small, which facilitates the planning of the housing structure to arrange the positions of other structural components of the garment processing equipment. For example, the portion of the housing that defines the expansion section 320c is approximately flat, which facilitates the installation of the inner tub 100, which holds the garments, on one side of the expansion section 320c in the direction of gravity G. It also facilitates the placement of structural components connected to the inlet section 320d in the lateral direction of the expansion section 320c, offset from the central axis of the inner tub 100. This makes full use of space, resulting in a compact internal structure for the garment processing equipment and reducing interference between structural components.
[0056] In some embodiments, along the direction from the inlet flow section 320d to the outlet flow section 320b (near the outlet 3240), at least a portion of the lateral width of the outlet flow section 320b gradually decreases to reduce the flow area of the outlet flow section 320b, increase water pressure, and enable the water flow within the outlet flow section 320b to be ejected at a higher speed. For example, as... Figure 8 As shown, along the direction from the inlet section 320d to the outlet section 320b, the lateral width of the expansion section 320c gradually increases, while the lateral width of the outlet section 320b gradually decreases, allowing the water to smoothly enter the outlet section 320b while being ejected at a high speed.
[0057] When the water flows in the direction from the inlet section 320d to the outlet section 320b, the water flow rate in the lateral edge area of the expansion section 320c is small because at least part of the lateral width of the expansion section 320c gradually increases. The casing also has multiple guide plates 3241 located in the expansion area. The multiple guide plates 3241 are arranged at intervals in the lateral direction of the expansion section 320c, which guides the water flow in the expansion section 320c to be more evenly distributed in the lateral direction of the expansion section 320c, and thus enters the outlet channel more evenly.
[0058] The casing also has a flow-expanding top surface 3205, which is positioned opposite to the flow-expanding bottom surface 3204 in the direction of gravity G. A water-guiding part 3251 protrudes from the flow-expanding top surface 3205 and extends into the water outlet section 320b. Multiple flow-guiding vertical plates 3241 protrude from the flow-expanding area of the flow-expanding bottom surface 3204, and the surfaces of the multiple flow-guiding vertical plates 3241 are respectively attached to the flow-expanding top surface 3205 to create multiple flow-guiding openings between the flow-expanding top surface 3205 and the flow-expanding bottom surface 3204, thereby guiding the water flow to enter the water outlet channel more evenly.
[0059] In some embodiments, such as Figure 9 As shown, the nozzle 320 includes a first housing 324 and a second housing 325. The first housing 324 and the second housing 325 are detachably connected, and the first housing 324 and the second housing 325 cover and define the water flow cavity 3201. In some embodiments, the first housing 324 includes a first main board 3224 with a flow-expanding bottom surface 3204, and the second housing 325 includes a second main board 3225 with a flow-expanding top surface 3205. The first main board 3224 and the second main board 3225 are disposed opposite each other in the direction of gravity G. The first housing 324 also has a water nozzle that extends toward a side away from the second main board 3225. The water nozzle has a first inlet wall 3041 and a second inlet wall 3042. The first inlet wall 3041 and the second inlet wall 3042 together form a water outlet section 320b. The second main board 3225 has a water guide portion 3251 that protrudes from the flow-expanding top surface 3205 and extends into the water outlet section 320b. The first housing 324 also has two first flanges 3242 protruding on the same side as the first main board 3224, and the second housing 325 also has two second flanges 3252 protruding on the same side as the second main board 3225. The two first flanges 3242 and the two second flanges 3252 are connected in a one-to-one correspondence. The first main board 3224 has a support plate 3248 connected to the first inlet wall 3041. The support plate 3248 extends away from the second inlet wall 3042. The surface of the support plate 3248 is in contact with the surface of the second main board 3225, so that the first main board 3224, the two first flanges 3242, the second main board 3225, the two second flanges 3252, the water guide part 3251 and the water nozzle together define the water outlet cavity 3201.
[0060] The housing also includes a cavity housing 400, which has a heat exchange channel 401 and a docking opening 421 communicating with the heat exchange channel 401. The evaporator 210 is disposed in the heat exchange channel 401 and installed in the cavity housing 400. The nozzle of the spray head 320 extends into the docking opening 421 so that the outlet 3240 faces the evaporator 210.
[0061] In some embodiments, the cavity housing 400 includes a duct base 410 and a duct cover 420. The evaporator 210 is mounted on the duct base 410, and the duct cover 420 is mounted on the duct base 410. The duct cover 420 and the duct base 410 enclose a heat exchange channel 401, and the duct cover 420 and the evaporator 210 are spaced apart. The duct cover 420 has a docking opening 421, and the nozzle 320 is detachably mounted on the duct cover 420 so that the nozzle 320 can be disassembled and repaired. During assembly, the first housing 324 and the second housing 325 of the nozzle 320 can be assembled into one piece and then installed on the air duct cover 420. Then, the nozzle 320 and the air duct cover 420 can be installed together on the air duct base 410. Alternatively, the first housing 324 of the nozzle 320 can be integrated with the air duct cover 420, and the second housing 325 can be installed on the first housing 324 before the nozzle 320 and the air duct cover 420 can be installed together on the air duct base 410.
[0062] The housing 400 has a water collection tank communicating with the heat exchange channel 401, which collects water flowing down from the evaporator 210. In some embodiments, the garment processing device further includes a filter assembly for filtering impurities from the water in the water collection tank to prevent impurities from flowing into other spaces and causing blockages.
[0063] In some embodiments, the garment processing device further includes a water pump mounted on the housing. Optionally, the water pump is mounted on the air duct base 410 of the housing 400. The water pump includes a first inlet end, a second inlet end, and an outlet end. The first inlet end is connected to a water collection tank, the second inlet end is connected to an external water source, and the outlet end is connected to the inlet flow section 320d of the water flow cavity 3201. The water pump is configured to deliver water from at least one of the first and second inlet ends to the water flow cavity 3201 via the outlet end, thereby recycling the water in the water collection tank and saving resources.
[0064] In some embodiments, the garment processing device further includes a valve body 600 and a water storage box (not shown). The valve body 600 is mounted on the housing, and optionally, it is mounted on the air duct cover 420 of the cavity housing 400. The valve body 600 includes a first interface 610, a second interface 620, and a third interface 630. The first interface 610 communicates with the outlet of the water pump, the second interface 620 communicates with the water flow chamber 3201, and the third interface 630 communicates with the external drainage space or the water storage box. The valve body 600 has a first mode and a second mode. In the first mode, the valve body 600 is configured to deliver water supplied by the water pump to the water flow chamber 3201. In the second mode, the valve body 600 is configured to discharge water supplied by the water pump to the external drainage space. Optionally, when it is necessary to clean debris from the surface of the evaporator 210, the valve body 600 can be switched to the first mode, and the water pump delivers water to the water flow chamber 3201 through the valve body 600 for cleaning. When the water flow in the collection tank is no longer suitable for cleaning the evaporator 210, the valve body 600 can be switched to the second mode, and the water pump discharges water to the external drainage space through the valve body 600. Alternatively, the valve body 600 can be switched to the second mode, and the water pump discharges water to the water storage box through the valve body 600. The water storage box is detachably installed in the casing. After the water storage box is full, it can be removed and the water poured out. In some other embodiments, a filter element can also be provided in the water storage box to filter the water in the water storage box, so that the water in the water storage box can be reused.
[0065] like Figure 10 As shown, the inner tub 100 is located on the side of the nozzle 320 away from the air duct cover 420, and the valve body 600 is installed on the side of the air duct cover 420 facing the inner tub 100. The valve body 600 is positioned on the side of the central axis H of the inner tub 100 in the horizontal direction, making full use of space and making the internal structure of the clothing processing equipment compact. It also facilitates the installation and maintenance of the valve body 600 and the pipelines connected to the valve body 600.
[0066] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A nozzle for use in garment processing equipment, characterized in that, The nozzle has a first inlet wall and a second inlet wall. The first inlet wall includes a main flow surface with a first water outlet edge. The second inlet wall has a second water outlet edge. The first water outlet edge and the second water outlet edge together form a water outlet. The water outlet is directed toward the evaporator of the clothing treatment device. The first inlet wall and the second inlet wall together form a water outlet section. The nozzle also has a flow-expanding section that extends to connect with the water outlet section. The flow-expanding section has a flow-expanding bottom surface that connects to the second inlet wall. In the horizontal direction, the distance from the position where the second inlet wall connects to the flow-expanding bottom surface to the first inlet wall is greater than the size of the water outlet.
2. The nozzle according to claim 1, characterized in that, The second water outlet edge and the first water outlet edge are on the same horizontal plane.
3. The nozzle according to claim 1, characterized in that, Along the direction of gravity, the main flow surface is inclined to the side where the second inlet wall is located. The nozzle also has an end guide surface, which is connected to the first water outlet edge and extends away from the first water outlet edge along the direction of gravity.
4. The nozzle according to claim 3, characterized in that, The width of the end guide surface along the direction of gravity is M, 0 mm. <M≤10mm。 5. The nozzle according to claim 3, characterized in that, The nozzle has a water guiding section, the end of which extends into the water outlet section; The water guide section has a water-facing arc surface facing the second inlet wall, and the circle containing the water-facing arc surface has a vertical tangent, with the first water outlet edge located at the vertical tangent.
6. The nozzle according to claim 5, characterized in that, The first inlet wall includes a flow guiding base surface, which is connected to the edge of the main flow guiding surface facing away from the end flow guiding surface; The water guiding part has a back water surface facing the guiding base surface, and the back water surface is in contact with the guiding base surface; The flow guiding surface extends along the direction of gravity; or, in the direction of gravity, the flow guiding surface is inclined to the side where the second inlet wall is located.
7. The nozzle according to claim 1, characterized in that, The expansion section is located on the side of the outlet section away from the first inlet wall.
8. The nozzle according to claim 1, characterized in that, Along the direction approaching the outlet flow section, at least a portion of the lateral width of the expansion section gradually increases; and / or, The diffuser bottom surface has a diffuser area connected to the second inlet wall; the nozzle has multiple guide plates, which are disposed in the diffuser area and are arranged at lateral intervals along the diffuser section; and / or, Along the direction close to the outlet, at least a portion of the lateral width of the water flow section gradually decreases.
9. The nozzle according to claim 1, characterized in that, The nozzle includes: A first housing has a water nozzle, the water nozzle having a first inlet wall and a second inlet wall, and the first housing also has a flow-expanding bottom surface connected to the second inlet wall; The second housing has a water guiding section and a flow-expanding top surface connected to the surface of the water guiding section; The second housing is installed on the first housing. The bottom surface of the flow amplification and the top surface of the flow amplification are arranged opposite each other along the direction of gravity. The water guide extends into the water outlet section to guide the fluid in the flow amplification section to flow towards the water outlet.
10. A garment processing device, characterized in that, include: The nozzle according to any one of claims 1-9; The vessel shell has heat exchange channels; and An evaporator is disposed within the heat exchange channel and installed in the cavity shell. The nozzle is installed in the cavity shell, and the outlet of the nozzle is connected to the heat exchange channel and is oriented towards the evaporator.
11. The garment processing equipment according to claim 10, characterized in that, The evaporator has a windward surface that forms an angle with the horizontal direction. In the direction of gravity, the windward surface is located below the water outlet, and the projection of the water outlet is entirely within the projection area of the evaporator.
12. The garment processing equipment according to claim 11, characterized in that, The edge of the windward side facing the outlet forms a first windward edge. In the horizontal direction, the minimum distance from the outlet to the first windward edge is L1, where 0mm≤L1≤3mm.
13. The garment processing equipment according to claim 10, characterized in that, The cavity shell has a water collection tank that communicates with the heat exchange channel, and the water collection tank collects the water flowing down from the evaporator; The garment processing equipment also includes a water pump, which is installed in the cavity housing and is connected to the water collection tank and the water outlet channel, respectively, and is configured to transport the water in the water collection tank to the water outlet channel.