Drying device and intelligent closestool

Abstract

The utility model provides a drying device which comprises a shell, an air outlet channel is formed in the shell, a turbofan is arranged in the shell, wind power generated by the turbofan flows out through the air outlet channel, a heating unit and a temperature sensor are arranged on the upper end face of the air outlet channel, and the heating unit is electrically connected with the temperature sensor. The lower end face of the air outlet channel is provided with a plurality of condensation drainage holes in a penetrating mode, the upper end face of the air outlet channel is provided with a first upper inclined face extending towards the lower end face, and the lower end face of the air outlet channel is provided with a first lower inclined face extending towards the upper end face. Through the high rotating speed of the turbofan, high wind pressure and large wind power are achieved, the drying efficiency is improved, the drying time is shortened, and the use comfort of a user is improved. In addition, through cooperation of the first upper inclined face and the first lower inclined face, hot air and cold air passing through the heating unit are fully mixed in the area, and it can be avoided that the temperature of blown-out warm air is not uniform.

Description

Technical Field

[0001] This utility model relates to the technical field of drying devices for smart toilets, specifically to a drying device and a smart toilet. Background Technology

[0002] The smart toilet drying function has gradually developed with people's pursuit of quality of life and technological advancements. Traditional drying devices typically consist of a fan, a heating unit, and a housing. The fan generates airflow, the heating element heats the air, and the housing has an air outlet channel that guides the hot air to the area that needs drying. For example, Chinese patent document CN217480340U discloses a mobile drying device for a smart toilet.

[0003] Current smart toilet drying devices generally use two types of fans: centrifugal blowers (slower speed, <7000 r / min) and axial flow fans (faster speed, ≥7000 r / min). Both centrifugal and axial flow fans have an angled airflow at the outlet, resulting in uneven flow distribution across the air heater's cross-section and uneven warm air temperature, affecting drying efficiency. The lower speed of centrifugal blowers leads to low air velocity and insufficient air volume, requiring longer drying times and resulting in a poor user experience. While axial flow fans provide greater air volume and pressure, they are noisier, impacting the user experience. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a drying device and a smart toilet to solve the problems mentioned in the background section above.

[0005] This utility model is achieved through the following technical solution:

[0006] A drying device includes a housing with an air outlet channel. A turbine fan is installed inside the housing, and the air generated by the turbine fan flows out through the air outlet channel. A heating unit and a temperature sensor are installed inside the air outlet channel. The heating unit and the temperature sensor are electrically connected. A plurality of condensate drain holes are arranged through the lower end face of the air outlet channel. A first upper inclined surface extending downwards is provided on the upper end face of the air outlet channel, and a first lower inclined surface extending upwards is provided on the lower end face of the air outlet channel.

[0007] Furthermore, the lower end face of the air outlet channel is provided with a second downwardly inclined surface, and the condensate drain hole is located between the first downwardly inclined surface and the second downwardly inclined surface.

[0008] Furthermore, the first upper inclined surface and the first lower inclined surface are arc-shaped.

[0009] Furthermore, the outlet section of the air outlet duct has a flat, constricted structure, and the outlet section continues to slope upwards, with the angle of inclination of the outlet section being greater than or equal to 7° with the horizontal plane.

[0010] Furthermore, the upper end face of the air outlet channel is provided with a second upper inclined surface arranged parallel to the second lower inclined surface, and the heating unit and temperature sensor are both located on the second upper inclined surface.

[0011] Furthermore, the shell has multiple bends along its length, which can change the direction of airflow.

[0012] Furthermore, the heating unit is a mica heating frame.

[0013] Furthermore, the second upper inclined surface and the second lower inclined surface are provided with a number of protrusions that bulge inward.

[0014] Furthermore, the protrusion is a conical protrusion or an arc-shaped protrusion.

[0015] On the other hand, this utility model provides a smart toilet, including a drying device as described in any of the preceding claims.

[0016] The beneficial effects of this utility model are as follows: A drying device includes a housing with an air outlet channel. A turbine fan is installed inside the housing, and the airflow generated by the turbine fan flows out through the air outlet channel. A heating unit and a temperature sensor are installed inside the air outlet channel, and the heating unit is electrically connected to the temperature sensor. Several condensate drain holes are arranged through the lower end face of the air outlet channel. A first upward-sloping surface extending downwards is provided on the upper end face of the air outlet channel, and a first downward-sloping surface extending upwards is provided on the lower end face of the air outlet channel. This utility model replaces traditional centrifugal blowers and axial flow fans with a turbine fan. The turbine fan speed can reach over 15000 r / min. The high speed of the turbine fan achieves high air pressure and strong airflow, improving drying efficiency, shortening drying time, and enhancing user comfort. Furthermore, the cooperation of the first upward-sloping surface and the first downward-sloping surface ensures that the hot and cold air after passing through the heating unit are fully mixed in this area, preventing uneven temperature distribution of the blown-out warm air and thus avoiding problems that could affect the drying effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a top view of the present invention.

[0019] Figure 3 This is a front view of a mica heating element.

[0020] Figure 4 This is a side view of the internal structure of the first embodiment.

[0021] Figure 5 This is a side view of the internal structure of the second embodiment.

[0022] Figure 6 This is a side view of the internal structure of the third embodiment.

[0023] The above figures include the following reference numerals:

[0024] 1. Housing; 11. Air outlet duct; 111. First upper inclined surface; 112. Second upper inclined surface; 121. First lower inclined surface; 122. Second lower inclined surface; 12. Condensate drain hole; 13. Protrusion; 14. Bend; 2. Turbine fan; 3. Heating unit; 31. Mica plate; 32. Resistance wire; 4. Temperature sensor; 5. Turbulence fan blade. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] As a first embodiment, refer to Figure 1 and Figure 4 As shown, a drying device includes a housing 1, which has an air outlet channel 11. A turbine fan 2 is installed inside the housing 1, and the air generated by the turbine fan 2 flows out through the air outlet channel 11. A heating unit 3 and a temperature sensor 4 are installed inside the air outlet channel 11. The heating unit 3 and the temperature sensor 4 are electrically connected. A plurality of condensate drain holes 12 are arranged through the lower end face of the air outlet channel 11. A first upper inclined surface 111 extending downward from the upper end face is provided on the upper end face of the air outlet channel 11. A first lower inclined surface 121 extending upward from the lower end face is provided on the lower end face of the air outlet channel 11.

[0027] In use, the airflow generated by the turbine fan 2 passes through the air outlet duct 11. Part of the airflow passing over the surface of the heating unit 3 forms hot air, while the part not passing over the surface of the heating unit 3 forms cold air. The airflow is then detected by the temperature sensor 4. When the outlet air temperature reaches a set threshold, the heating unit 3 maintains its output power, ensuring a constant temperature of the output warm air. The placement of the first upper inclined surface 111 and the first lower inclined surface 121 alters the airflow direction, allowing hot and cold air to mix thoroughly in this area, ensuring uniform temperature of the blown-out warm air and improving the drying effect.

[0028] Reference Figure 2 As shown in the top view, the housing 1 has multiple bends 14 along its length. These bends 14 can change the direction of airflow, allowing hot and cold air to mix fully in the area to form warm air.

[0029] Reference Figure 3 As shown, the heating unit 3 is preferably a mica heating frame, which is arranged horizontally in the air outlet channel 11. The mica heating frame includes mica plates 31 and resistance wires 32. Multiple mica plates 31 are fixedly connected to the housing 1, and the resistance wires 32 are spirally wound around the mica plates 31, thereby increasing the contact area between the air force generated by the turbine fan 2 and the heating unit 3, thus improving the efficiency of hot air generation. Furthermore, the air flowing over the surface of the resistance wires 32 is hot air, while gaps between the resistance wires 32 allow cold air to pass through. Thus, when passing through the resistance wires 32, the hot and cold air are multi-layered, increasing the interaction probability of hot and cold air and preventing uneven temperature of the blown-out warm air. The mica heating frame is driven by a high-power motor, doubling the power of traditional heating units, ensuring sufficient hot air.

[0030] The lower end face of the air outlet channel 11 is provided with a second downward inclined surface 122. The condensate drain hole 12 is located between the first downward inclined surface 121 and the second downward inclined surface 122. Due to the presence of the heating unit 3, condensate is formed inside the air outlet channel 11. The condensate is discharged through the condensate drain hole 12. Due to the inclined direction of the first downward inclined surface 121 and the second downward inclined surface 122, it can be ensured that the condensate is discharged from the lowest position, preventing the accumulation of condensate.

[0031] Furthermore, the first upper inclined surface 111 and the first lower inclined surface 121 are arc-shaped, which makes the airflow smoother, allowing hot and cold air to flow quickly to the intersecting areas and reducing the impact on the airflow speed.

[0032] The outlet section of the air outlet duct 11 has a flat, constricted structure, and the outlet section continues upward at an angle, as shown in the reference section. Figure 4As shown in angle A, the angle between the outlet section and the horizontal plane is greater than or equal to 7°. The outlet section is flat, which can reduce the cross-sectional area and thus increase the warm air flow rate. Furthermore, by satisfying this angle, the warm air can be directed to the buttock area that needs to be dried, which is ergonomic.

[0033] The upper end face of the air outlet duct 11 is provided with a second upper inclined surface 112 arranged parallel to the second lower inclined surface 122. The heating unit 3 and the temperature sensor 4 are both located on the second upper inclined surface 112. The second upper inclined surface 112 has a long planar section, which facilitates the installation and fixing of the heating unit 3 and the temperature sensor 4.

[0034] As a second embodiment, refer to Figure 5 As shown, the second upper inclined surface 112 and the second lower inclined surface 122 are provided with a plurality of protrusions 13 protruding inward. The protrusions 13 can change the flow direction of hot air and cold air that are attached to the second upper inclined surface 112 and the second lower inclined surface 122, thereby improving the mixing effect of hot air and cold air.

[0035] The protrusion 13 is a conical or arc-shaped protrusion. The ratio of the protrusion height of the protrusion 13 to the inner diameter width of the air outlet channel 11 is about 1:10. This can increase the mixing rate of cold and hot air while ensuring that the flow rate is not affected as much as possible.

[0036] As a third embodiment, refer to Figure 6 As shown, it also includes a baffle fan blade 5 rotatably connected to the housing 1, located between the heating unit 3 and the temperature sensor 4. The baffle fan blade 5 has bearings at both ends, rotatably connected to the housing 1, which reduces noise during rotation. The wind force generated by the turbine fan 2 drives the baffle fan blade 5 to rotate, changing the flow direction of hot and cold air and ensuring thorough mixing.

[0037] In summary, the drying device of this utility model replaces the centrifugal blower and axial flow fan with a turbine fan 2, enabling it to provide a larger air volume and air pressure, shortening the user's drying time and improving the user experience. Furthermore, the structural settings such as the first upper inclined surface 111 and the first lower inclined surface 121, which alter the direction of airflow, allow hot and cold air to intermingle and mix thoroughly to form warm air, ensuring uniform temperature of the blown-out warm air and improving the drying effect. The hot and cold air are mixed by the protrusion 13 or the turbulence fan blades 5 before being detected by the temperature sensor 4, ensuring accurate temperature detection of the output warm air and preventing inaccurate control of the output power of the heating unit 3 due to partial detection of hot or cold air by the temperature sensor 4.

[0038] On the other hand, this utility model provides a smart toilet, including a drying device as described in any of the preceding claims, so that the smart toilet has the corresponding advantages of the drying device.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drying device, comprising a housing (1), wherein the housing (1) is provided with an air outlet channel (11), characterized in that: The housing (1) is provided with a turbine fan (2), and the wind generated by the turbine fan (2) flows out through the air outlet channel (11). The air outlet channel (11) is provided with a heating unit (3) and a temperature sensor (4). The heating unit (3) is electrically connected to the temperature sensor (4). The lower end face of the air outlet channel (11) is provided with a plurality of through-holes (12) for condensate draining. The upper end face of the air outlet channel (11) is provided with a first upper inclined surface (111) extending downward. The lower end face of the air outlet channel (11) is provided with a first lower inclined surface (121) extending upward.

2. The drying apparatus according to claim 1, characterized in that: The lower end face of the air outlet channel (11) is provided with a second downward inclined surface (122), and the condensate drain hole (12) is located between the first downward inclined surface (121) and the second downward inclined surface (122).

3. The drying apparatus according to claim 1, characterized in that: The first upper inclined surface (111) and the first lower inclined surface (121) are arc-shaped.

4. The drying apparatus according to claim 1, characterized in that: The outlet section of the air outlet duct (11) has a flat, constricted structure, and the outlet section extends upward at an angle greater than or equal to 7° with respect to the horizontal plane.

5. A drying apparatus according to claim 2, characterized in that: The upper end face of the air outlet channel (11) is provided with a second upper inclined surface (112) arranged parallel to the second lower inclined surface (122), and the heating unit (3) and the temperature sensor (4) are both located on the second upper inclined surface (112).

6. A drying apparatus according to claim 1, characterized in that: The shell (1) has multiple bends (14) along its length, through which the direction of wind flow can be changed.

7. A drying apparatus according to claim 1, characterized in that: The heating unit (3) is a mica heating frame.

8. A drying apparatus according to claim 5, characterized in that: The second upper inclined surface (112) and the second lower inclined surface (122) are provided with a number of protrusions (13) that protrude inward.

9. A drying apparatus according to claim 8, characterized in that: The protrusion (13) is a conical protrusion or an arc-shaped protrusion.

10. A smart toilet, characterized in that: Includes a drying apparatus as described in any one of claims 1 to 8.

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