Drainage structure of humidifier

Abstract

The utility model provides a water draining structure of a humidifier, the top of the water draining structure is provided with a flow channel for allowing water flow to pass through and a water inlet communicated with the flow channel, the flow channel comprises an annular bottom wall and a side wall surrounding the periphery of the bottom wall, and the bottom wall is provided with a plurality of water outlets arranged at intervals; the side wall is provided with a plurality of flow guide plates protruding in the flow channel, one flow guide plate at least corresponds to one water outlet, the water outlets are arranged close to the sides, back to the water inlet, of the flow guide plates, and the included angle formed by the flow guide plates and the side wall close to the water outlets is an acute angle. Water flow in the flow channel is divided and guided through the flow guide plate, so that one part of the water flow can flow into the passing water outlet, and the other part of the water flow continues to flow backwards along the flow channel, the situation that the water flow excessively flows out of the water outlet close to the water inlet during free flowing is avoided, and the water flow at the water outlet at the far end is guaranteed; and therefore, the water drainage uniformity of the water outlets at different positions is improved, and the uniformity of the wetting wet curtain is also improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a water discharge structure of a humidifier. Background Art

[0002] In recent years, with the improvement of living standards year by year, people's pursuit of quality of life has gradually increased. Humidifiers, as a household motor that can increase air humidity, have been widely favored by consumers in recent years. At present, the mainstream evaporative humidifiers sold on the market can improve the problem of dry air by evaporating water naturally into the air. Evaporative humidifiers are generally equipped with components such as water tanks, water pumps, wet curtains, and fans. The water pump pumps the water in the water tank into the water structure above the wet curtain. The water structure evenly soaks the wet curtain with water. The wet curtain evaporates under the airflow of the fan to form water vapor to achieve the purpose of increasing air humidity.

[0003] However, the drainage structure in the prior art drains water unevenly, and the problem of more water drainage in some places and less water drainage in others often occurs. The wet curtains in the drainage areas are easily moldy when soaked in water for a long time, which eventually affects the service life of the wet curtains. Summary of the invention

[0004] In order to solve the problem of uneven water discharge in the water discharge structure of the humidifier in the prior art, the present application can achieve uniform and efficient water discharge by arranging a guide plate on the side wall of the flow channel and a water outlet behind the guide plate.

[0005] In order to solve the above technical problems, the present application is implemented in the following manner: a water discharge structure of a humidifier, wherein a flow channel for accommodating water flow and a water inlet connected to the flow channel are arranged at the top of the water discharge structure, the flow channel includes an annular bottom wall and a side wall arranged around the outer periphery of the bottom wall, and a plurality of water outlets arranged at intervals are arranged on the bottom wall;

[0006] Among them, a plurality of guide plates protruding in the flow channel are arranged on the side wall, one guide plate corresponds to at least one water outlet, the water outlet is arranged close to the side of the guide plate facing away from the water inlet, and the angle formed by the guide plate and the side wall close to the water outlet is an acute angle.

[0007] A raised guide plate is arranged on the side wall of the flow channel, and the water flow in the flow channel is guided by the guide plate, so that a part of the water flow passing through the guide plate is more concentrated, the water flow velocity is increased, and the water flow can quickly pass through the guide plate and the water outlet behind it and flow to the next water outlet, so as to ensure that there is sufficient water at the water outlet relatively far away from the water inlet; at the same time, after the water flows through the inclined guide plate, a part of the water flow will flow backwards to form a reflux area on the rear side of the guide plate, and the water outlet is arranged on the side of the guide plate facing away from the water inlet, so that the water outlet is located in the reflux area, and the water that flows back to the rear side of the guide plate can flow to the wet curtain below through the water outlet, so as to ensure that there is sufficient water at the water outlet near the guide plate.

[0008] By setting a guide plate to adjust the flow direction and flow rate of water near the water outlet, the water flow in the flow channel is diverted and guided, so that part of the water flow can flow into the water outlet passing by, and part of the water flow continues to flow backward along the flow channel, avoiding the problem that the water flow basically flows out from the outlet close to the water inlet when it flows freely, resulting in insufficient water flow at the far end of the water outlet, thereby improving the uniformity of water discharge at the outlets at different positions, and also improving the uniformity of wetting the wet curtain. In addition, this solution only needs to set up several guide plates in the flow channel as needed, with less materials and simple structure, and will not produce an overly complex flow channel structure. A better uniform water discharge effect can be achieved in a simple and low-cost manner.

[0009] Preferably, the side wall includes an inner wall arranged on the inner side of the bottom wall and an outer wall arranged on the outer side of the bottom wall, and the guide plate protrudes inwardly from the inner side wall surface of the outer wall.

[0010] The water flow in the flow channel tends to diffuse outward during the flow process, and the water flow is relatively more concentrated near the outer wall. Setting the guide plate on the outer wall can produce more significant diversion and diversion effects, and can better ensure the uniformity of the launching of the launching structure.

[0011] Preferably, the guide plate includes a first end connected to the outer wall and a second end extending toward the inner wall, and a water flow distance formed between the second end and the inner wall accounts for 1 / 2-3 / 4 of the flow channel width.

[0012] The narrower the water flow distance formed by the guide plate, the more obvious the concentration effect on the water flow. Setting the water flow distance within a reasonable range can ensure that the guide plate has a significant guiding effect on the water flow, and avoid the guide plate excessively limiting the water flow distance, making the overall flow of the water smoother and reducing the risk of direct overflow of the water flow.

[0013] Preferably, the angle between the guide plate and the outer wall is set between 15° and 45°.

[0014] The smaller the inclination angle of the guide plate, the smaller the impact on the water flow, and the smaller the recirculation area formed behind the guide plate, that is, the diversion effect of the guide plate is less obvious, and the overall flow of the water will be smoother. Limiting the inclination angle of the guide plate within a reasonable range is conducive to ensuring that the guide plate can actually produce the expected diversion effect, while also taking into account the overall smoothness of the water flow in the flow channel.

[0015] Preferably, the guide plate is tangent to the water outlet.

[0016] By making the guide plate tangent to the water outlet, the water outlet is ensured to be located in the reflow zone formed by the guide plate, and the water reflowing at the end of the guide plate can flow directly downward through the water outlet, so that the water flow dripping to the wet curtain is smoother.

[0017] Preferably, the water outlets are arranged from small to large along the water flow direction.

[0018] Since the flow velocity and flow rate of water flow gradually decrease along the direction of water flow, the water outlets are arranged from small to large along the direction of water flow, so that the water outlet at the far end has a larger water outlet area to balance the impact of changes in water flow velocity and flow rate on the water discharge from the water outlet, which is conducive to achieving the purpose of consistent water discharge from different water outlets.

[0019] Preferably, the side wall is higher than the guide plate.

[0020] The side wall of the flow channel is set to be higher than the guide plate. When the water flow in the flow channel is large, the water flow can directly flow over the guide plate in the flow channel, avoiding the obstruction of the water flow by the excessively high guide plate, improving the smoothness of the water flow through the flow channel, and effectively reducing the risk of overflow due to the obstruction of the guide plate under large flow conditions.

[0021] Preferably, the water inlet is arranged in the flow channel, and a water inlet cap is provided above the water inlet. The water inlet cap includes a pointed portion located in the middle and protruding toward the water inlet, and guide arc surfaces located on both sides of the pointed portion and extending outward, and the guide arc surfaces are bent downward.

[0022] Furthermore, when water flows upward from the water inlet under the action of external force, it can be blocked by the water inlet cap, preventing the water flow from flowing upward at too high a height and making it easier to directly rush out of the flow channel. At the same time, based on the diversion and diversion effects produced by the tip formed in the middle of the water inlet cap and the diversion arc surfaces on both sides of the tip, the water flowing out of the water inlet can flow evenly to both sides of the water inlet, thereby improving the uniformity of water discharge on the left and right sides of the discharge structure.

[0023] Preferably, the side walls surrounding the water inlet are relatively higher than the side walls at other positions.

[0024] The water flow speed at the water inlet is relatively fast. Raising the side wall at the water inlet can cooperate with the water inlet cap to more comprehensively block the water outflow from the water inlet, which can prevent the water from overflowing from the flow channel due to the impact force of the incoming water to a greater extent, reduce the water flow loss, and avoid the water rushing out of the flow channel directly dripping back into the water tank and causing dripping noise.

[0025] Preferably, an overflow channel is further provided on the outer side of the flow channel, and an overflow port for draining water is provided on the bottom wall of the overflow channel.

[0026] By arranging an overflow channel on the outside of the flow channel, the overflow channel can discharge water when the water flow in the flow channel is too large, thereby playing a role of overflow protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the water discharge structure of the humidifier of the present application.

[0029] Figure 2 It is a top view of the water discharge structure of the humidifier of the present application.

[0030] Figure 3 yes Figure 2 The structure shown is a cross-sectional view taken along line AA in the figure.

[0031] Figure 4 It is a schematic structural diagram of the water discharge structure of the humidifier of the present application from another perspective.

[0032] The meanings of the various marks in the figure are as follows: 1. launching structure; 11. outer wall; 12. inner wall; 13. overflow port; 14. water inlet cap; 141. tip; 142. guide arc surface; 15. bottom wall; 16. overflow channel; 17. water outlet; 18. guide plate; 19. water inlet. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0035] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. As for the positional relationships such as "upstream" and "downstream", they are based on the positional relationships when the fluid flows normally.

[0036] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0039] The following will be combined with the attached Figure 1-4 A detailed introduction to this application is given.

[0040] In the prior art, a humidifier generally includes components such as a water tank, a water pump, a wet curtain, and a fan. The water in the water tank is pumped by a water pump to a water discharge structure 1 located above the wet curtain. The water discharge structure 1 is provided with a flow channel, which guides the water flow to the wet curtain to wet the wet curtain. The moisture on the wet curtain evaporates rapidly under the action of the fan to form water vapor and diffuses into the air to humidify the air.

[0041] In this embodiment, an annular flow channel and a water inlet 19 in the flow channel are provided at the top of the water discharge structure 1, and a water pump pumps the water source in the water tank into the flow channel through the water inlet 19. Specifically, the flow channel includes a bottom wall 15 and a side wall arranged around the outer periphery of the bottom wall 15, and the bottom wall 15 and the side wall enclose a water flow channel with an upper opening, and a plurality of water outlets 17 connected to the wet curtain are arranged at intervals on the bottom wall 15 of the flow channel.

[0042] In order to achieve uniform water discharge, the side wall of the flow channel is provided with a guide plate 18 protruding from the flow channel, each guide plate 18 corresponds to a water outlet 17, and the water outlet 17 is arranged close to the back side of the guide plate 18, and the angle formed by the side of the guide plate 18 close to the water outlet 17 and the side wall of the flow channel is an acute angle. It can be understood that, if Figure 2 As shown, the water outlet 17 at the farthest end does not need to be provided with a guide plate.

[0043] The water flow in the flow channel is guided by the guide plate 18, so that a part of the water flow passing through the guide plate 18 is more concentrated, the water flow velocity is increased, and the water flow can quickly pass through the guide plate 18 and the water outlet behind it and flow to the next water outlet, so as to ensure that there is sufficient water flow at the water outlet 17 which is relatively far away from the water inlet 19; at the same time, after the water flows through the inclined guide plate 18, a part of the water flow will flow backwards, forming a reflux area on the rear side of the guide plate 18, and the water outlet 17 is set on the side of the guide plate facing away from the water inlet 19, so that the water outlet 17 is located in the reflux area, and the water that flows back to the rear side of the guide plate 18 can flow to the wet curtain below through the water outlet 17, so as to ensure that there is sufficient water discharge at the water outlet near the guide plate 18.

[0044] By setting a guide plate 18 at the water outlet to adjust the flow direction and flow rate of the water flow, the water flow in the flow channel is diverted and guided, so that part of the water flow can flow into the water outlet 17 passing through, and part of the water flow continues to flow backward along the flow channel, avoiding the problem that when the water flow is free, it preferentially flows out from the water outlet 17 close to the water inlet 19, resulting in only a small amount of water flowing out of the far end water outlet 17, thereby improving the uniformity of water discharge from the water outlets 17 at different positions, and also improving the uniformity of wetting the wet curtain. In addition, this solution only needs to set a number of guide plates 18 in the flow channel as needed, with less material and simple structure, and will not produce an overly complex flow channel structure, and can achieve a better uniform water discharge effect in a simple and low-cost manner.

[0045] It is understood that the angles between each guide plate 18 and the side wall can be the same or different. The size of the angle can be designed according to the shape of the flow channel. For example, at a position where the water flow direction changes greatly in the flow channel, a larger angle between the guide plate 18 and the side wall of the flow channel can facilitate the water flow to turn. Setting the angles between each guide plate 18 and the side wall to be the same size facilitates the production and design of the launching structure 1.

[0046] In this embodiment, the angle between the guide plate 18 and the side wall is uniformly set to the same angle, and the size of the angle is set between 15°-45°. The smaller the inclination angle of the guide plate 18, the smaller the impact on the water flow, and the smaller the recirculation area formed behind the guide plate 18, that is, the diversion effect of the guide plate 18 is less obvious, and the overall flow of the water flow will be smoother. Limiting the inclination angle of the guide plate 18 within a reasonable range is conducive to ensuring that the guide plate 18 can actually produce the expected diversion effect, while also taking into account the overall smoothness of the water flow in the flow channel.

[0047] like Figure 1-2 As shown, the flow channel has an annular bottom wall 15, and the side wall of the flow channel includes an inner wall 12 arranged around the inner side of the bottom wall 15 and an outer wall 11 arranged around the outer side of the bottom wall 15. The bottom wall 15, the inner wall 12, and the outer wall 11 together form an annular flow channel, and the guide plate 18 protrudes inward from the inner side wall surface of the outer wall 11. At the same time, the water discharge structure 1 also includes an overflow channel 16 arranged around the outer wall 11 on the outside of the flow channel, and the bottom wall 15 of the overflow channel 16 is provided with an overflow port 13 for discharge. By arranging the overflow channel 16 on the outside of the flow channel, the overflow channel 16 can discharge water when the water flow in the flow channel is too large, thereby playing a role of overflow protection.

[0048] Since the water flow in the flow channel tends to diffuse outward during the flow process, and the water flow is relatively more concentrated near the outer wall 11, setting the guide plate 18 on the outer wall 11 can produce more significant diversion and diversion effects, and can better ensure the uniformity of the water discharge of the water discharge structure 1. In addition, the water discharge structure 1 is usually set to be equal to the width of the wet curtain, which can completely cover the top of the wet curtain. When the water discharge structure 1 includes an annular flow channel and an overflow channel 16 arranged around the flow channel, the outer wall 11 located between the two channels is closer to the center of the wet curtain. Setting the guide plate 18 on the outer wall 11 means that the water outlet 17 matched with the guide plate 18 is also arranged near the outer wall 11, and then the water discharge structure 1 can start to wet the wet curtain from the middle of the wet curtain, which is conducive to improving the uniformity of wetting on both sides of the wet curtain. At the same time, it can also avoid the problem that the water outlet position is too edge, causing the water flow to drip directly back into the water tank, making the water discharge of the water discharge structure 1 more reliable.

[0049] In other embodiments, the position of the guide plate 18 may be set according to the structural differences of the launching structure 1 and the actual requirements for the guide effect. In this case, the guide plate 18 may be set on the inner wall 12, or part of the guide plate 18 may be set on the inner side of the outer wall 11 and part of the guide plate 18 may be set on the outer side of the inner wall 12. As long as the guide effect of the guide plate 18 can be guaranteed.

[0050] In this embodiment, the water outlet 17 extends inward from the outer wall 11, and its end is tangent to the guide plate 18 to ensure that the water outlet 17 is located in the reflow area formed by the guide plate 18, and facilitates the water that flows back at the end of the guide plate 18 to flow directly downward through the water outlet 17, which can ensure that the water flow drips onto the wet curtain more smoothly.

[0051] Furthermore, the water outlet 17 is arranged from small to large along the direction of the water flow, and the width of the water outlet 17 is preferably expanded in a direction parallel to the side wall, so that the area of ​​the water outlet 17 is increased, and the inclination angle of the guide plate 18 is not affected. It can be understood that the size of the water outlet 17 can also be expanded along the width direction of the flow channel or along the circumferential direction of the water outlet 17 according to different working conditions. Since the flow velocity and flow rate of the water flow gradually decrease along the flow direction, enlarging the water outlet 17 can increase the water flow rate of the distal water outlet, which is conducive to achieving the purpose of consistent water discharge from different water outlets 17.

[0052] The guide plate 18 includes a first end connected to the outer wall 11 and a second end extending toward the inner wall. The water flow distance formed between the second end and the inner wall 12 occupies 1 / 2-3 / 4 of the entire flow channel width. The narrower the water flow distance formed by the guide plate 18, the more obvious the water flow concentration effect. Setting the water flow distance within a reasonable range can ensure that the guide plate 18 has a significant guiding effect on the water flow, and can avoid the guide plate 18 from excessively limiting the water flow distance, so that the overall flow of the water flow is smoother. More specifically, the water flow preferably occupies 2 / 3 of the entire flow channel width to take into account the guiding effect of the guide plate 18 and the smoothness of the water flow.

[0053] In this embodiment, the side wall is higher than the guide plate 18, so when the water flow in the flow channel is large, the water flow can directly flow over the guide plate 18, avoiding the obstruction of the water flow caused by the excessively high guide plate 18 under the condition of large flow, improving the patency of the flow channel, facilitating the water flow to flow smoothly to the opposite side of the water inlet 19, and effectively reducing the overflow problem caused by the obstruction of the guide plate 18 under the condition of large flow.

[0054] The water inlet 19 is arranged in the flow channel, and the water inlet cap 14 is provided above the water inlet 19. The water inlet cap 14 includes a tip 141 located in the middle and protruding toward the water inlet 19, and a guide arc surface 142 located on both sides of the tip 141 and extending outward. Therefore, when the water flow impacts upward from the water inlet 19 under the action of external force, it can be blocked by the water inlet cap 14, so as to prevent the water flow from impacting too high and rushing out of the flow channel directly. At the same time, based on the diversion and diversion effect generated by the tip 141 formed in the middle of the water inlet cap 14 and the guide arc surface 142 on both sides of the tip, the water flowing out of the water inlet 19 is evenly diverted to both sides of the water inlet 19, thereby improving the uniformity of water discharge on the left and right sides of the water discharge structure 1. The water flow speed at the water inlet 19 is relatively fast. Raising the side wall at the water inlet 19 can cooperate with the water inlet cap 14 to more comprehensively block the water outflow from the water inlet 19, which can avoid water splashing everywhere to a greater extent, reduce water flow loss, and avoid the problem of water rushing out of the flow channel directly dripping back into the water tank and causing dripping noise.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. A water discharge structure of a humidifier, wherein a flow channel for accommodating water flow and a water inlet connected to the flow channel are arranged at the top of the water discharge structure, the flow channel comprises an annular bottom wall and a side wall arranged around the outer periphery of the bottom wall, and the bottom wall is provided with a plurality of water outlets arranged at intervals; It is characterized in that The side wall is provided with a plurality of guide plates protruding in the flow channel, one guide plate corresponds to at least one water outlet, the water outlet is arranged close to the side of the guide plate facing away from the water inlet, and the angle formed by the guide plate and the side wall close to the water outlet is an acute angle.

2. The water discharge structure of a humidifier according to claim 1, characterized in that: The side wall includes an inner wall arranged on the inner side of the bottom wall and an outer wall arranged on the outer side of the bottom wall, and the guide plate protrudes inward from the inner side wall surface of the outer wall.

3. The water discharge structure of a humidifier according to claim 2, characterized in that: The guide plate includes a first end connected to the outer wall and a second end extending toward the inner wall, and a water flow distance formed between the second end and the inner wall accounts for 1 / 2-3 / 4 of the width of the flow channel.

4. The water discharge structure of a humidifier according to claim 3, characterized in that: The angle between the guide plate and the outer wall is set between 15° and 45°.

5. The water discharge structure of a humidifier according to claim 1, characterized in that: The guide plate is tangent to the water outlet.

6. The water discharge structure of a humidifier according to claim 1, characterized in that: The water outlets are arranged from small to large along the water flow direction.

7. The water discharge structure of a humidifier according to claim 1, characterized in that: The side wall is higher than the guide plate.

8. The water discharge structure of a humidifier according to claim 1, characterized in that: The water inlet is arranged in the flow channel, and a water inlet cap is provided on the top of the water inlet. The water inlet cap includes a tip located in the middle and protruding toward the water inlet, and guide arc surfaces located on both sides of the tip and extending outward, and the guide arc surfaces are bent downward.

9. The water discharge structure of a humidifier according to claim 8, characterized in that: The side wall surrounding the water inlet is relatively higher than the side wall at other positions.

10. The water discharge structure of a humidifier according to claim 1, characterized in that: An overflow channel is also arranged on the outer side of the flow channel, and an overflow port for draining water is arranged on the bottom wall of the overflow channel.

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