Silent water return structure of humidifier

Abstract

The mute water return structure comprises a water tank and a water tank cover, the water tank cover comprises a cover plate and a fence, a water return groove and a plurality of water return holes are formed in the top of the water tank cover, and the inlet end of each water return hole is communicated with the water return groove; a concave cavity is formed in the position, corresponding to each water return hole, of the outer side of the fence, and the outlet end of each water return hole communicates with the corresponding concave cavity; and each water return hole is in a shape with a wide upper part and a narrow lower part. In actual use, return water of the humidifier flows downwards along the inner wall of the water tank, the return water is prevented from falling into the water tank in the form of water drops to cause water dripping noise, and silent return water is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of humidifiers, in particular to a silent water return structure for a humidifier. Background Art

[0002] The humidifier is provided with a water return structure, and the dripping sound generated by the water return is very obvious at night, which is very unfriendly to people who like a quiet environment and have a shallow sleep. The main reasons for the water return sound in the water tank are that there is a large drop between the water return hole and the water level in the water tank, and the water flow rate is too large, etc. In view of the above technical problems, this application proposes a new technical solution, which can avoid the noise caused by the dripping of the water return in the form of water droplets into the water tank.

[0003] It can be seen that the existing technology still needs to be improved. Content of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide a silent water return structure for a humidifier, aiming to solve the technical problem of the large dripping sound generated by the water return of the humidifier in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A silent water return structure for a humidifier, including a water tank and a water tank cover. The water tank cover includes a cover plate and a fence. A water return groove and a plurality of water return holes are provided at the top of the water tank cover. The inlet end of each water return hole is respectively communicated with the water return groove; a concave cavity is respectively provided outside the fence corresponding to each water return hole, and the outlet end of each water return hole is respectively communicated with the corresponding concave cavity; each water return hole is in the shape of being wider at the top and narrower at the bottom.

[0007] Further, in the silent water return structure of the humidifier, a slope is respectively provided on the inner wall of the box body of the water tank corresponding to each concave cavity, and a cavity is formed between each slope and the fence. The inlet end of each cavity is respectively communicated with the corresponding concave cavity.

[0008] In the silent water return structure of the humidifier, the inclination direction of the cavity is opposite to the inclination direction of the water return hole.

[0009] In the silent water return structure of the humidifier, the bottom ends of the slopes are not higher than the lower edge of the fence.

[0010] In the silent water return structure of the humidifier, the horizontal distance between the lower edge of the fence and the slope ranges from 0.1 to 0.5 mm.

[0011] In the silent water return structure of the humidifier, the thickness of the lower edge of the fence is 0.5 to 1 mm.

[0012] In the described silent water return structure of the humidifier, a baffle is respectively arranged at each concave cavity, and each baffle divides the corresponding concave cavity into a left cavity and a right cavity.

[0013] Beneficial effects: The utility model provides a silent water return structure for a humidifier. Compared with the prior art, by arranging structures such as a water return groove, water return holes, and concave cavities, the inlet end of each water return hole is respectively communicated with the water return groove, and the outlet end of each water return hole is respectively communicated with the corresponding concave cavity, realizing the collection, drainage of the humidifier's returned water, and finally flowing downward along the inner wall of the water tank, avoiding the noise caused by the returned water falling into the water tank in the form of water droplets, and achieving silent water return. Description of the Drawings

[0014] Figure 1 is a perspective view of the silent water return structure of the humidifier.

[0015] Figure 2 is a top view of the silent water return structure of the humidifier.

[0016] Figure 3 is a sectional view taken along line A-A in the figure.

[0017] Figure 4 is Figure 3 a partial enlarged view of the S1 area in

[0018] Figure 5 is a schematic diagram of the distance between the inclined surface and the lower edge of the fence.

[0019] Figure 6 is a perspective view of the water tank cover.

[0020] Figure 7 is Figure 6 a partial enlarged view of the S2 area in Detailed Description of the Embodiment

[0021] The utility model provides a silent water return structure for a humidifier. To make the purpose, technical solution and effects of the utility model clearer and more definite, the following further details the utility model. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0022] Please refer to Figures 1 to 7 , the utility model provides a silent water return structure for a humidifier. The drawings are only used to explain the structural principle and are not in proportion to the actual product. The drawings only show the structures related to the inventive points of this application, and some conventional structures are not specifically shown. The "multiple" (or "several") described herein refers to an indefinite quantity, because the number of the structures referred to is not the inventive point, so no specific limitation is made. Figure 4 The dotted arrow in

[0023] As used herein, the "inlet end" and "outlet end" are relative concepts, which are divided based on the direction of the reflux flow. The "inlet end" of a certain structure is located upstream of its "outlet end".

[0024] A silent water return structure for a humidifier includes a water tank 1 and a water tank cover. The water tank cover includes a cover plate 21 and a fence 22. A water return groove 201 and a number of water return holes 202 are provided at the top of the water tank cover. The inlet end of each water return hole is respectively communicated with the water return groove (as shown in Figure 1 and Figure 2 ); a concave cavity 203 is respectively provided outside the fence corresponding to each water return hole (as shown in Figure 6 and Figure 7 ); the outlet end of each water return hole is respectively communicated with the corresponding concave cavity; each water return hole is in the shape of being wider at the top and narrower at the bottom. After actual assembly, the fence of the water tank cover is inserted into the top of the water tank and closely cooperates with it. The water in the water return groove can only be discharged downward through the water return holes and the concave cavities.

[0025] The above-mentioned "each water return hole is in the shape of being wider at the top and narrower at the bottom" can be wider at the top and narrower at the bottom in the radial direction and / or wider at the top and narrower at the bottom in the circumferential direction.

[0026] As shown in Figure 4 and Figure 5 , further, an inclined surface 19 is respectively provided on the inner wall of the box body of the water tank corresponding to each concave cavity. Each inclined surface and the fence enclose a cavity 204 respectively. The inlet end of each cavity is respectively communicated with the corresponding concave cavity. The above cavities facilitate further drainage of the returned water.

[0027] Preferably, the inclination direction of the cavity 204 is opposite to the inclination direction of the water return hole 201. As shown in the attached Figure 4 , the upper end of the water return hole faces inward while the lower end faces outward, and the upper end of the cavity faces outward while the lower end faces inward. This setting makes the returned water change direction after entering the cavity, which has two advantages: (1) reducing the impact force of the returned water; (2) preventing the returned water from flowing vertically back into the water tank and ensuring that it flows down along the inner wall of the water tank, thus avoiding the generation of dripping sounds.

[0028] As shown in Figure 5 , further, the bottom ends of the inclined surfaces are not higher than the lower edge of the fence. This setting enables the returned water to smoothly flow along the inclined surface to the inner wall of the water tank when leaving the cavity, avoiding the accumulation of the returned water at the lower edge of the fence.

[0029] As shown in Figure 5 , preferably, the horizontal distance L between the lower edge of the fence and the inclined surface ranges from 0.1 to 0.5 mm. The significance of this setting is to enable the returned water to flow down along the inner wall of the water tank in a sheet shape; if the gap between the bottom end of the inclined surface and the lower edge of the fence is too large, the returned water will be in a droplet shape when it reaches here.

[0030] As Figure 5 shown, preferably, the thickness W of the lower edge of the fence is 0.5 to 1 mm. Since the thickness of the lower edge of the fence is small, it is possible to prevent the backwater from accumulating and forming water droplets here.

[0031] As Figure 6 and Figure 7 shown, a baffle 3 is respectively arranged at each cavity, and each baffle divides the corresponding cavity into a left cavity 2021 and a right cavity 2022. By arranging the baffle, the water flow at the cavity can be divided into two streams, preventing the backwater from concentrating too much here.

[0032] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims

1. A silent water return structure for a humidifier, comprising a water tank and a water tank cover, characterized in that: The water tank cover includes a cover plate and a fence. A return water groove and a plurality of return water holes are arranged on the top of the water tank cover. The inlet end of each return water hole is respectively connected with the return water groove; a concave cavity is respectively arranged on the outside of the fence corresponding to each return water hole, and the outlet end of each return water hole is respectively connected with the corresponding concave cavity; each return water hole is respectively wide at the top and narrow at the bottom.

2. The silent water return structure of the humidifier according to claim 1, characterized in that: An inclined surface is arranged on the inner wall of the water tank body corresponding to each concave cavity, each inclined surface and the fence respectively form a cavity, and the inlet end of each cavity is communicated with the corresponding concave cavity.

3. The silent water return structure of the humidifier according to claim 1, characterized in that: The inclination direction of the cavity is opposite to the inclination direction of the water return hole.

4. The silent water return structure of the humidifier according to claim 2, characterized in that: The bottom end of each slope is not higher than the lower edge of the fence.

5. The silent water return structure of the humidifier according to claim 4, characterized in that: The horizontal distance between the lower edge of the fence and the slope ranges from 0.1 to 0.5 mm.

6. The silent water return structure of the humidifier according to claim 1, characterized in that: The thickness of the bottom edge of the fence is 0.5~1mm.

Images