Water-vapor separation box

Abstract

The utility model discloses a water-vapor separation box which comprises a box body and a top cover covering the top of the box body, a water-vapor separation cavity is formed by the box body and the top cover, the box body is provided with a water inlet and a water outlet which are communicated with the water-vapor separation cavity, and the box body is further provided with a residual water backflow port communicated with the water-vapor separation cavity. The water inlet and the water outlet are higher than the residual water backflow port, and the bottom wall of the water-vapor separation cavity gradually inclines downwards from the end close to the water outlet to the end close to the residual water backflow port, so that the bottom wall can guide water flow to flow towards the residual water backflow port. According to the water-vapor separation box, after a user presses a water outlet stopping key of the water drinking equipment, the water drinking equipment stops supplying water flow into the water-vapor separation box, the water outlet in the high position can stop water outlet in a very short time, one-key water stopping and instant water stopping are achieved, residual water in the cavity flows back through the residual water backflow opening under guiding of the bottom wall, and residual water is prevented from being stored.

Description

Technical Field

[0001] The present application relates to the technical field of instant heating equipment, and in particular to a water vapor separation box. Background Art

[0002] Instant heating technology has the advantages of heating on demand and energy saving, and is applied to drinking water devices with heating functions, such as instant drinking machines. Existing instant drinking water equipment can heat water and boil it to produce water, but because water is usually accompanied by water vapor when it is heated to a higher temperature, the higher the temperature, the more water vapor there is. For a smaller water flow rate, a large amount of water vapor in the water will cause the water to stop flowing or float, affecting the shape of the water.

[0003] To solve the above problems, most of the current instant drinking water equipment drains water through a water vapor separation box, in which a water discharge path and a steam discharge path are provided. Hot water and steam are separated in the water vapor separation box to improve the water outlet shape. The inlet of the steam discharge path is higher than the inlet of the water discharge path to reduce the risk of water entering the steam discharge path.

[0004] However, generally, cold and hot water share the same water vapor separation box for drainage, and the cold water outlet flow rate is usually larger than that of the hot water outlet. In order to prevent the cold water from filling the water vapor separation box and overflowing from the steam discharge path when the cold water outlet flow rate is large, the water vapor separation box is usually designed with a larger cavity to avoid the water flow filling the water vapor separation box when the water outlet flow rate is large. This also brings some defects. For example, a larger water vapor separation box will temporarily retain more water after the water outlet is completed. This part of the retained water will affect the next hot water outlet temperature. Even if this part of water can flow toward the water outlet and be discharged under the action of gravity, the flow is slow and the discharge time is long, so that the water outlet will still flow for a period of time after the user presses the stop water outlet button, affecting the user experience. Utility Model Content

[0005] The present application provides a water vapor separation box to solve the technical problems that water is retained inside the water vapor separation box after drainage, which affects the temperature of the next hot water output and water continues to flow from the water outlet for a period of time even after the user presses the stop water output button.

[0006] The technical solution adopted in this application is:

[0007] A water vapor separation box includes a box body and a top cover covering the top of the box body. The box body and the top cover form a water vapor separation cavity. The box body is provided with a water inlet and a water outlet respectively communicating with the water vapor separation cavity. The box body is also provided with a surplus water return port communicating with the water vapor separation cavity. The water inlet and the water outlet are higher than the surplus water return port. The bottom wall of the water vapor separation cavity gradually slopes downward from the end close to the water outlet to the end close to the surplus water return port, so that the bottom wall can guide the water flow to flow towards the surplus water return port.

[0008] The water vapor separation box provided by this application further includes the following additional technical features:

[0009] One end of the bottom wall close to the surplus water return port is provided with a sunken water accumulation area recessed downward, and the surplus water return port is arranged in the sunken water accumulation area.

[0010] The surplus water return port is arranged in the center of the sunken water accumulation area, and the bottom surface of the sunken water accumulation area is set as a water guiding inclined surface that gradually slopes downward from the edge towards the center.

[0011] The water inlet is arranged on the side wall of the box body, and the sunken water accumulation area is arranged directly below the water inlet.

[0012] The top cover is provided with a water inlet water blocking rib extending downward. The water inlet and the water outlet are located on both sides of the water inlet water blocking rib; along the direction of the central axis of the water inlet pointing to the water vapor separation cavity, at least part of the projection area of the water inlet falls within the water inlet water blocking rib.

[0013] The bottom wall of the water vapor separation cavity is provided with a flow-around rib extending upward. The flow-around rib encloses a flow-around channel. One end of the flow-around channel opens towards the water inlet, and the other end of the flow-around channel opens towards the water outlet. The flow-around rib includes an arc-shaped rib and a blocking rib located inside the arc-shaped rib. The gap between the blocking rib and the arc-shaped rib forms the flow-around channel.

[0014] The bottom wall is provided with an exhaust port and a trachea extending upward around the exhaust port. An air passing gap is formed between the top end of the trachea and the top cover. The top cover is provided with an exhaust water blocking rib extending downward. The exhaust water blocking rib surrounds the outside of the trachea, and the bottom end of the exhaust water blocking rib is lower than the top end of the trachea.

[0015] The water outlet includes a low-level water outlet and high-level water outlets distributed on at least one side of the low-level water outlet. The bottom wall is provided with a water pipe extending upward around the high-level water outlet. The top end of the water pipe is lower than the top cover and higher than the low-level water outlet.

[0016] The bottom wall is provided with a water separation plate extending upward. The water separation plate divides the water vapor separation cavity into an inlet cavity provided with the water inlet and the surplus water return port and an outlet cavity provided with the water outlet. The inlet cavity and the outlet cavity are communicated through a water passing gap between the water separation plate and the top cover. A water passing notch is provided at the top of the water separation plate, and the water passing notch is located outside the water guide pipe.

[0017] The water vapor separation box further includes a water outlet nozzle connected to the bottom of the box body. The water outlet nozzle is provided with a vertically penetrating water outlet channel communicated with the water outlet. A drainage column extending in the vertical direction is provided in the center of the water outlet channel. The drainage column is uniformly connected to the inner wall of the water outlet channel through a plurality of drainage ribs in the circumferential direction. The thickness of the drainage rib gradually decreases toward the drainage column.

[0018] Due to the adoption of the above technical solution, the technical effects achieved by the present application at least include:

[0019] 1. For the water vapor separation box provided by the present application, the box body is provided with a surplus water return port. The bottom wall of the water vapor separation cavity gradually slopes downward from the end close to the water outlet to the end close to the surplus water return port, so that the bottom wall can guide the water flow toward the surplus water return port. When the user presses the stop water outlet key of the drinking device, the drinking device stops supplying water flow into the water vapor separation box, and the water level in the water vapor separation cavity drops rapidly, so that the water outlet at the high position will stop discharging water in a very short time, realizing one-key water stop, and stopping water immediately when the water is turned off, improving the use experience. The water remaining in the water vapor separation cavity will flow into the surplus water return port under the guidance of the bottom wall, and can finally flow back to the upstream of the water path of the drinking device through the return pipeline connected to the surplus water return port. For example, it can flow back into the water tank of the drinking device, so that after pressing the stop water outlet key, the water in the water vapor separation cavity flows back, and there is no remaining water in the water vapor separation cavity, which will not affect the temperature of the next hot water discharge.

[0020] 2. As a preferred mode of the present application, a sunken water gathering area is provided at the end of the bottom wall of the water vapor separation cavity close to the surplus water return port. The surplus water return port is arranged in the sunken water gathering area. Through the gathering effect of the sunken water gathering area on the water flow, the surplus water in the water vapor separation cavity is all gathered in the sunken water gathering area and flows back toward the surplus water return port, reducing the risk of remaining water in the water vapor separation cavity.

[0021] 3. As a preferred mode of the present application, the surplus water return port is arranged in the center of the sunken water gathering area. The bottom surface of the sunken water gathering area is set as a water guiding inclined surface that gradually slopes downward from the edge to the center, so that after the bottom wall guides the surplus water in the water vapor separation cavity into the sunken water gathering area, the water guiding inclined surface then guides the surplus water to the surplus water return port, so that the surplus water in the water vapor separation box can completely flow back after the water outlet is stopped.

[0022] 4. As a preferred embodiment of the present application, the water inlet is provided on the side wall of the box body, and the sunken water collection area is provided directly below the water inlet. Even within a short period of time after the water supply is stopped, due to the inertia of the system's water outlet, a certain amount of water will still enter the water-vapor separation cavity from the water inlet. This part of the water that enters can directly fall into the sunken water collection area to form a convergence and flow back towards the residual water return port, avoiding the consequence that water flows to the water outlet for discharge and still flows out after the stop water outlet button is pressed.

[0023] 5. As a preferred embodiment of the present application, the top cover is provided with a water inlet water baffle rib, and at least part of the area of the water inlet is directly opposite to the water inlet water baffle rib. When water flows through the water inlet and enters the water-vapor separation cavity, it first impacts the water inlet water baffle rib. If the incoming water is hot water, the process of the hot water impacting the water inlet water baffle rib helps to accelerate the water-vapor separation and at the same time reduces the kinetic energy of the water. If the incoming water is cold water, the process of the cold water impacting the water inlet water baffle rib can reduce the kinetic energy of the cold water, so that the water flows towards the water outlet more smoothly, the water type when the water flows out from the water outlet is better, and the water volume at the water outlet does not show sudden increases and decreases, which helps to improve the user experience. Further, the flow-around ribs enclose a flow-around channel, so that when water flows through the water inlet and enters the water-vapor separation cavity, it first impacts the water inlet water baffle rib and then flows around in the flow-around channel, which helps to accelerate the water-vapor separation of hot water and also helps to reduce the kinetic energy of cold water to improve the water outlet water type.

[0024] 6. As a preferred embodiment of the present application, the bottom wall is provided with an exhaust port and a guide pipe that surrounds the exhaust port and extends upward. The top inlet of the guide pipe is the inlet for the steam in the water-vapor separation cavity to flow towards the exhaust port. Therefore, the top inlet of the guide pipe is located at a relatively high position in the water-vapor separation cavity. The water vapor separated from the hot water has a smaller density and floats upward. The top inlet of the guide pipe is not only conducive to the discharge of water vapor but also can effectively prevent water from flowing into the guide pipe and overflowing from the exhaust port when the water level in the water-vapor separation cavity is relatively high.

[0025] 7. As a preferred embodiment of the present application, the water outlet includes a low-level water outlet and a high-level water outlet. The guide pipe surrounds the high-level water outlet and extends upward. The top end of the guide pipe is lower than the top cover and higher than the low-level water outlet. When the water outlet flow rate is small, the water level in the water-vapor separation cavity is low, and the water is discharged from the low-level water outlet, making it easy for the small-flow water to gather towards the middle and form a beam of water; when the water outlet flow rate is large, the water level in the water-vapor separation cavity is high, and the water is discharged from both the low-level water outlet and the high-level water outlet at the same time, avoiding the water level in the water-vapor separation cavity being too high and overflowing from the exhaust port.

[0026] 8. As a preferred embodiment of the present application, a drainage column extending in the vertical direction is provided at the center of the water outlet channel of the water outlet nozzle. The drainage column is uniformly provided with a plurality of drainage ribs along the circumferential direction, and the thickness of the drainage ribs gradually decreases towards the drainage column. According to the Coanda effect, the water entering the water outlet nozzle through the water outlet nozzle will flow along the surface of the drainage ribs, causing the water to gather towards the central drainage column, further improving the water flow pattern of the water outlet. The drainage ribs not only fix the position of the central drainage column but also have the function of draining water towards the central drainage column. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0028] Figure 1 is an exploded view of the water-vapor separation box provided by the first embodiment of the present application;

[0029] Figure 2 is a cross-section of the water-vapor separation box provided by the first embodiment of the present application Figure 1 , where the arrow represents the water flow path when the water flows from the water inlet into the water-vapor separation cavity and then is discharged through the water outlet;

[0030] Figure 3 is a cross-section of the water-vapor separation box provided by the first embodiment of the present application Figure 2 , where the arrow represents the water flow path when the remaining water at the high position on the bottom wall flows back to the remaining water return port;

[0031] Figure 4 is a schematic structural diagram of the box body provided by the first embodiment of the present application;

[0032] Figure 5 is a schematic structural diagram of the top cover provided by the present application Figure 2 ;

[0033] Figure 6 is a schematic structural diagram of the box body provided by the second embodiment of the present application;

[0034] Figure 7 is a cross-sectional view of the water-vapor separation box provided by the second embodiment of the present application;

[0035] Figure 8 is a schematic structural diagram of the water outlet nozzle provided by the present application.

[0036] List of components and reference numerals:

[0037] 1 Box body, 11 Water inlet, 12 Water outlet, 121 Low - level water outlet, 122 High - level water outlet, 13 Return water port, 14 Bottom wall, 141 Sinking water - collecting area, 142 Water - guiding inclined plane, 15 Flow - around ribs, 151 Arc - shaped ribs, 152 Blocking ribs, 16 Exhaust port, 17 Air - guiding pipe, 18 Water - guiding pipe, 19 Water - separating plate, 191 Water - passing notch;

[0038] 2 Top cover, 21 Water - inlet water - blocking ribs, 22 Exhaust - water - blocking ribs;

[0039] 3 Water - vapor separation cavity, 31 Water - inlet cavity, 32 Water - outlet cavity;

[0040] 4 Air - passing gap;

[0041] 5 Water - outlet nozzle, 51 Water - outlet channel, 52 Drainage column, 53 Drainage ribs. Specific implementation mode

[0042] In order to more clearly illustrate the overall concept of this application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0043] In the following description, many specific details are set forth in order to fully understand this application. However, this application can also be implemented in other ways different from those described herein. Therefore, the protection scope of this application is not limited by the specific embodiments disclosed below.

[0044] In addition, in the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0045] In this application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] In an embodiment of this application, a water vapor separation box is provided. For the convenience of description and understanding, the following content provided by this application is all elaborated based on the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only a specific example and a schematic illustration, and does not constitute a specific limitation on the technical solution provided by this application.

[0048] As Figures 1 to 8 shown, a water vapor separation box provided by this application includes a box body 1 and a top cover 2 covering the top of the box body 1. The box body 1 and the top cover 2 form a water vapor separation cavity 3. The box body 1 is provided with a water inlet 11 and a water outlet 12 respectively communicating with the water vapor separation cavity 3. The box body 1 is further provided with a residual water return port 13 communicating with the water vapor separation cavity 3. The water inlet 11 and the water outlet 12 are higher than the residual water return port 13. The bottom wall 14 of the water vapor separation cavity 3 slopes gradually downward from the end close to the water outlet 12 to the end close to the residual water return port 13, so that the bottom wall 14 can guide the water flow towards the residual water return port 13. Figure 2 The arrow in Figure 3 represents the water flow path when the water flow enters the water vapor separation cavity from the water inlet and then is discharged through the water outlet,

[0049] Specifically, to enable the bottom wall 14 to guide the water flow towards the residual water return port 13 and to make the residual water return completely as much as possible, it is preferably that the residual water return port 13 corresponds to the lowest point position of the bottom wall 14. For example, the residual water return port 13 can be directly arranged at the lowest point position of the bottom wall 14. Another example is, as Figure 2 shown, the residual water return port 13 can also be arranged at the lowest point of the side wall of the water vapor separation cavity 3. Since there is a transition between the lowest point of the side wall and the lowest point of the bottom wall 14, the bottom end of the residual water return port 13 also corresponds to the lowest point position of the bottom wall 14. In a preferred embodiment, to ensure the sealing performance of the water vapor separation cavity 3, the box body 1 and the top cover 2 can be hermetically sealed and connected together by welding.

[0050] The water vapor separation box provided by this application has a box body 1 with a surplus water return port 13. The bottom wall 14 of the water vapor separation cavity 3 slopes gradually downward from the end close to the water outlet 12 to the end close to the surplus water return port 13, so that the bottom wall 14 can guide the water flow towards the surplus water return port 13. When the user presses the stop water outlet key of the drinking device, the drinking device stops supplying water flow into the water vapor separation box, and the water level in the water vapor separation cavity 3 drops rapidly, causing the water outlet 12 at the high position to stop discharging water in a very short time, realizing one-key water stop, stopping water immediately when the water is turned off, and improving the user experience. The water remaining in the water vapor separation cavity 3 will flow into the surplus water return port 13 under the guidance of the bottom wall 14, and can finally flow back to the upstream of the water path of the drinking device through the return pipeline connected to the surplus water return port 13. For example, it can flow back into the water tank of the drinking device, so that after pressing the stop water outlet key, the water in the water vapor separation cavity 3 flows back, and there is no remaining water in the water vapor separation cavity 3, which will not affect the temperature of the next hot water discharge.

[0051] As a preferred embodiment of this application, as Figure 2 , Figure 3 and Figure 4 shown, the end of the bottom wall 14 close to the surplus water return port 13 is provided with a sunken water gathering area 141 that sinks downward. The surplus water return port 13 is arranged in the sunken water gathering area 141. Through the converging effect of the sunken water gathering area 141 on the water flow, the surplus water in the water vapor separation cavity 3 is guided by the bottom wall 14 towards the sunken water gathering area 141, and all the surplus water is gathered in the sunken water gathering area 141 and flows back towards the surplus water return port 13, reducing the risk of remaining water in the water vapor separation cavity 3.

[0052] As a preferred embodiment under this embodiment, as shown in 2 and Figure 4 shown, the surplus water return port 13 is arranged in the center of the sunken water gathering area 141, and the bottom surface of the sunken water gathering area 141 is set as a water guiding inclined surface 142 that slopes gradually downward from the edge towards the center, avoiding the existence of water accumulation dead corners in the sunken water gathering area 141. After the bottom wall 14 guides the surplus water in the water vapor separation cavity 3 into the sunken water gathering area 141, the water guiding inclined surface 142 then guides the surplus water to the surplus water return port 13, so that the surplus water in the water vapor separation box can completely flow back after the water outlet is stopped.

[0053] As a preferred embodiment under this embodiment, as Figure 2 and Figure 4As shown, the water inlet 11 is provided on the side wall of the box body 1, and the sunken water collection area 141 is provided directly below the water inlet 11. Those skilled in the art can understand that within a short period of time after pressing the stop water outlet key to control the water supply cut-off, due to the water outlet inertia of the system, a certain amount of water will still enter the water-vapor separation chamber 3 from the water inlet 11. Therefore, by arranging the sunken water collection area 141 directly below the water inlet 11, even within a short period of time after controlling the water supply cut-off, due to the water outlet inertia of the system, when water continues to enter from the water inlet 11, this part of the incoming water can directly fall on the sunken water collection area 141 to form a convergence and flow back towards the residual water return port 13, avoiding the consequence that this part of the water flows to the water outlet 12 for discharge and still discharges water after pressing the stop water outlet key. Further preferably, the water inlet 11 can be located directly above the center of the sunken water collection area 141. Since the residual water return port 13 is provided in the center of the sunken water collection area 141, the residual water return port 13 is located directly below the water inlet 11. Then, this part of the water that continues to enter from the water inlet 11 due to the water outlet inertia after stopping the water outlet can directly fall into the residual water return port 13 or a position near the residual water return port 13, facilitating the rapid reflux of this part of the water flow.

[0054] As a preferred embodiment of the present application, as Figure 2 and Figure 5 shown, the top cover 2 is provided with a downwardly extending water inlet water baffle 21, and the water inlet 11 and the water outlet 12 are located on both sides of the water inlet water baffle 21; along the direction of the central axis of the water inlet 11 pointing to the water-vapor separation chamber 3, at least part of the projection area of the water inlet 11 falls within the water inlet water baffle 21. Through this design, when water flows through the water inlet 11 and enters the water-vapor separation chamber 3, it first impacts the water inlet water baffle 21. If the incoming water is hot water, the process of the hot water impacting the water inlet water baffle 21 helps to accelerate the water-vapor separation and at the same time reduces the kinetic energy of the water. If the incoming water is cold water, the process of the cold water impacting the water inlet water baffle 21 can reduce the kinetic energy of the cold water, so that the water flow is relatively stable when flowing towards the water outlet 12, the water pattern when the water flows out from the water outlet 12 is better, and the water volume at the water outlet 12 will not show sudden increases and decreases, which helps to improve the user experience. In a preferred embodiment, the water inlet water baffle 21 can be a U-shaped structure, the opening of the U-shaped structure faces the water inlet 11, and the side wall of the water inlet water baffle 21 abuts against the side wall of the water-vapor separation chamber 3 provided with the water inlet 11, so that the water inlet water baffle 21 forms a semi-surrounding of the water inlet 11, which helps to improve the water blocking effect, thereby accelerating the water-vapor separation and effectively reducing the water flow kinetic energy.

[0055] As a preferred embodiment under this embodiment, as Figure 2 and Figure 4As shown, the bottom wall 14 of the water-vapor separation chamber 3 is provided with flow-around ribs 15 extending upward. The flow-around ribs 15 enclose a flow-around channel. One end of the flow-around channel opens towards the water inlet 11, and the other end of the flow-around channel opens towards the water outlet 12. The flow-around ribs 15 include arc-shaped ribs 151 and blocking ribs 152 located inside the arc-shaped ribs 151. The gap between the blocking ribs 152 and the arc-shaped ribs 151 forms the flow-around channel. The flow-around ribs 15 enclose the flow-around channel, so that when water flows into the water-vapor separation chamber 3 through the water inlet 11, it first impacts the water inlet water-blocking ribs 21, and then flows around in the flow-around channel, which helps to accelerate the separation of hot water and water vapor, and also helps to reduce the kinetic energy of cold water and improve the water outlet pattern. Preferably, the flow-around channel formed between the blocking ribs 152 and the arc-shaped ribs 151 can be a structure similar to the Tesla valve channel, effectively improving the flow-around effect of the water flow, thereby helping to accelerate the water-vapor separation and effectively reducing the water flow kinetic energy.

[0056] As a preferred embodiment of the present application, as Figure 2 and Figure 4 shown, the bottom wall 14 is provided with an exhaust port 16 and a gas guide pipe 17 extending upward around the exhaust port 16. An air passage gap 4 is formed between the top end of the gas guide pipe 17 and the top cover 2. The top cover 2 is provided with an exhaust water-blocking rib 22 extending downward. The exhaust water-blocking rib 22 surrounds the outside of the gas guide pipe 17, and the bottom end of the exhaust water-blocking rib 22 is lower than the top end of the gas guide pipe 17. Those skilled in the art can understand that the top inlet of the gas guide pipe 17 is the inlet for the steam in the water-vapor separation chamber 3 to flow towards the exhaust port 16. Therefore, the top inlet of the gas guide pipe 17 is located at a relatively high position in the water-vapor separation chamber 3. The water vapor separated from the hot water has a small density and floats upward. The top inlet of the gas guide pipe 17 is beneficial for the discharge of water vapor and can effectively prevent water flow in the water-vapor separation chamber 3 from entering the gas guide pipe 17 and overflowing from the exhaust port 16 when the water level in the water-vapor separation chamber 3 is relatively high. In addition, the exhaust water-blocking rib 22 arranged around the top inlet of the gas guide pipe 17 can also block the water flow at a high water level, further preventing the water flow from overflowing from the exhaust port 16 when the water level is relatively high.

[0057] As a preferred embodiment of the present application, as Figure 2 and Figure 4As shown, the water outlet 12 includes a low-level water outlet 121 and high-level water outlets 122 distributed on at least one side of the low-level water outlet 121. The bottom wall 14 is provided with a water guide pipe 18 that surrounds the high-level water outlet 122 and extends upward. The top end of the water guide pipe 18 is lower than the top cover 2 and higher than the low-level water outlet 121. Those skilled in the art can understand that with this design, when the water outlet flow rate of the drinking water device is small, the water level in the water vapor separation chamber 3 is low, and water is discharged from the low-level water outlet 121, making it easy for the small-flow water to gather towards the middle and form a beam of water; when the water outlet flow rate of the drinking water device is large, the water level in the water vapor separation chamber 3 is high, and water is discharged from both the low-level water outlet 121 and the high-level water outlets 122 simultaneously, increasing the discharge capacity of the water outlet 12 and preventing the water level in the water vapor separation chamber 3 from being too high and overflowing from the exhaust port 16.

[0058] In a preferred embodiment, as Figure 6 and Figure 7 shown, the bottom wall 14 is provided with a water separation plate 19 that extends upward. The water separation plate 19 divides the water vapor separation chamber 3 into a water inlet chamber 31 provided with the water inlet 11 and the surplus water return port 13 and a water outlet chamber 32 provided with the water outlet 12. The water inlet chamber 31 and the water outlet chamber 32 are communicated through a water passing gap between the water separation plate 19 and the top cover 2. The top of the water separation plate 19 is provided with a water passing notch 191, and the water passing notch 191 is located outside the water guide pipe 18. The water separation plate 19 divides the water vapor separation chamber 3 into a water inlet chamber 31 and a water outlet chamber 32. The volume of the water outlet chamber 32 is small, and the water remaining in the water outlet chamber 32 after shutting off the water outlet is also less. When the stop water outlet button is pressed, the small amount of remaining water in the water outlet chamber 32 quickly flows out from the water outlet 12, reducing the water outlet volume and water outlet time of the water outlet 12 after the user presses the stop water outlet button. After shutting off the water outlet, most of the water in the water vapor separation chamber 3 remains in the water inlet chamber 31 and will not be discharged from the water outlet 12 under the blocking action of the water separation plate 19 and can slowly flow out from the surplus water return port 13. By providing the water passing notch 191 on the water separation plate 19, when the water outlet flow rate is small, the water in the water inlet chamber 31 first flows into the water outlet chamber 32 from the water passing notch 191 and then flows out from the low-level water outlet 121; when the water outlet flow rate is large, the water in the water inlet chamber 31 overflows the top of the water separation plate 19 and quickly fills the water outlet chamber 32, and flows out from both the low-level water outlet 121 and the high-level water outlets 122 simultaneously. In addition, to simplify the structure, a part of the water separation plate 19 can form part of the pipe wall of the water guide pipe 18.

[0059] In Figure 4 the technical solution where the water separation plate 19 is not provided on the middle bottom wall, when the water outlet flow rate is small, the water flow can directly flow into the low-level water outlet 121 without crossing the water separation plate 19, and when the water outlet flow rate is large, the water flow can cross the water guide pipe 18 and flow out from both the low-level water outlet 121 and the high-level water outlets 122 simultaneously.

[0060] As a preferred embodiment of the present application, as Figure 1 , Figure 2 and Figure 8 shown, the water vapor separation box further includes a water outlet nozzle 5 connected to the bottom of the box body 1. The water outlet nozzle 5 is provided with a water outlet channel 51 that penetrates up and down and communicates with the water outlet 12. A drainage column 52 extending in the vertical direction is provided in the center of the water outlet channel 51. The drainage column 52 is uniformly connected to the inner wall of the water outlet channel 51 through a plurality of drainage ribs 53 along the circumferential direction. The thickness of the drainage rib 53 gradually decreases toward the drainage column 52. Through this setting, the water flow entering the water outlet nozzle 5 can form the Coanda effect. According to the Coanda effect, the water in the water outlet nozzle 5 will flow along the surface of the drainage rib 53, causing the water to gather toward the middle drainage column 52, further improving the shape of the water flow during water outlet. The drainage rib 53 not only serves to fix the central position of the drainage column 52 but also has the function of draining water toward the middle drainage column 52.

[0061] What is not described in this application can be realized by adopting or referring to the existing technology.

[0062] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0063] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A water vapor separation box, comprising a box body and a top cover covering the top of the box body. The box body and the top cover form a water vapor separation cavity. The box body is provided with a water inlet and a water outlet respectively communicated with the water vapor separation cavity, and is characterized in that, The box body is further provided with a surplus water return port communicated with the water-vapor separation cavity. The water inlet and the water outlet are higher than the surplus water return port. The bottom wall of the water-vapor separation cavity gradually slopes downward from the end close to the water outlet to the end close to the surplus water return port, so that the bottom wall can guide the water flow to flow towards the surplus water return port.

2. The water-vapor separation box according to claim 1, characterized in that one end of the bottom wall close to the surplus water return port is provided with a sunken sinking water collection area, and the surplus water return port is arranged in the sinking water collection area.

3. The water-vapor separation box according to claim 2, characterized in that the surplus water return port is arranged in the center of the sinking water collection area, and the bottom surface of the sinking water collection area is set as a water guide inclined surface that gradually slopes downward from the edge towards the center.

4. The water-vapor separation box according to claim 2, characterized in that the water inlet is arranged on the side wall of the box body, and the sinking water collection area is arranged directly below the water inlet.

5. The water-vapor separation box according to claim 1, characterized in that the top cover is provided with a downward-extending water inlet water baffle rib, and the water inlet and the water outlet are located on both sides of the water inlet water baffle rib; along the direction of the central axis of the water inlet pointing to the water-vapor separation cavity, at least part of the projection area of the water inlet falls within the water inlet water baffle rib.

6. The water-vapor separation box according to claim 5, characterized in that the bottom wall of the water-vapor separation cavity is provided with an upward-extending flow-around rib, and the flow-around rib encloses a flow-around channel. One end of the flow-around channel opens towards the water inlet, and the other end of the flow-around channel opens towards the water outlet. The flow-around rib includes an arc-shaped rib and a baffle rib located inside the arc-shaped rib, and the gap between the baffle rib and the arc-shaped rib forms the flow-around channel.

7. The water-vapor separation box according to claim 1, characterized in that the bottom wall is provided with an exhaust port and a guide air pipe extending upward around the exhaust port. An air passing gap is formed between the top end of the guide air pipe and the top cover. The top cover is provided with a downward-extending exhaust water baffle rib, and the exhaust water baffle rib surrounds the outside of the guide air pipe, and the bottom end of the exhaust water baffle rib is lower than the top end of the guide air pipe.

8. The water-vapor separation box according to claim 1, characterized in that the water outlet includes a low-position water outlet and a high-position water outlet distributed on at least one side of the low-position water outlet. The bottom wall is provided with a guide water pipe extending upward around the high-position water outlet, and the top end of the guide water pipe is lower than the top cover and higher than the low-position water outlet.

9. The water-vapor separation box according to claim 8, characterized in that the bottom wall is provided with a water isolation plate extending upward. The water isolation plate divides the water-vapor separation cavity into a water inlet cavity provided with the water inlet and the surplus water return port and a water outlet cavity provided with the water outlet. The water inlet cavity and the water outlet cavity are communicated through a water passing gap between the water isolation plate and the top cover. The top of the water isolation plate is provided with a water passing notch, and the water passing notch is located outside the guide water pipe.

10. The water-vapor separation box according to any one of claims 1-9, characterized in that The water vapor separation box further includes a water outlet nozzle connected to the bottom of the box body. The water outlet nozzle is provided with a water outlet channel that penetrates up and down and communicates with the water outlet. A drainage column extending in the vertical direction is provided at the center of the water outlet channel. The drainage column is uniformly connected to the inner wall of the water outlet channel through a plurality of drainage ribs along the circumferential direction. The thickness of the drainage rib gradually decreases towards the drainage column.

Images