atomizing humidifier

Abstract

This invention provides a misting humidifier, comprising a humidifier housing and an airflow driving component. The humidifier housing contains a misting chamber with an atomizer inside. The misting chamber has a mist outlet channel. The airflow driving component includes airflow driving blades, which are positioned within the mist outlet channel, with the atomizer located on the negative pressure side of the blades. The water mist generated by the atomizer is delivered to the external environment through the mist outlet channel under the rotational drive of the airflow driving blades. Larger particles in the water mist are separated from the mist by the centrifugal force of the rotating airflow driving blades. Because the atomizer is located on the negative pressure side of the airflow driving blades, this invention enables the simultaneous humidification of the water mist and the centrifugal force of the rotating airflow driving blades to eject larger particles from the water mist, ensuring only small particles are expelled. This effectively prevents the phenomenon of water mist from the mist outlet of existing humidifiers wetting the ground or tabletop.

Description

Technical Field

[0001] This invention belongs to the field of humidifier design technology, specifically relating to an atomizing humidifier. Background Technology

[0002] Common atomizing humidifiers use ultrasonic transducers to turn water into a mist, which is then blown out of the unit by a fan and into the air to achieve humidification. The main problem with existing ultrasonic humidifiers is that the water mist particles produced by ultrasonic atomization are of varying sizes. Larger particles cannot be blown far enough to wet the floor or tabletop. Current technologies often address this by increasing the fan's drive capability, thus enabling larger particles to be blown further to minimize the wetting of surfaces. However, this approach results in significant noise from the fan, motor, and airflow. Summary of the Invention

[0003] Therefore, the present invention provides a misting humidifier to solve the problem in related technologies where larger particles in the water mist blown out by the humidifier easily wet the table or floor.

[0004] To address the aforementioned problems, this invention provides an atomizing humidifier, comprising a humidifier housing and an airflow driving component. The humidifier housing has an atomizing chamber, in which an atomizer is disposed. The atomizing chamber has a mist outlet channel. The airflow driving component includes airflow driving blades, which are located within the mist outlet channel, and the atomizer is located on the negative pressure side of the airflow driving blades. The water mist generated by the atomizer can be delivered from the mist outlet channel to the external environment under the rotational drive of the airflow driving blades, and larger particles in the water mist can be separated from the water mist under the centrifugal force of the rotation of the airflow driving blades.

[0005] In some embodiments, the airflow-driven blades are axial flow blades or oblique flow blades; and / or, the atomizer is an ultrasonic atomizer.

[0006] In some embodiments, the airflow driving component further includes a rotary drive motor, the output end of which is driven by the airflow driving blades, and the rotary drive motor is located outside the atomizing chamber.

[0007] In some embodiments, a partition is provided inside the humidifier housing, which divides the internal space of the humidifier housing into an atomizing chamber and a closed electrical chamber. The rotary drive motor is installed in the electrical chamber, and the shaft of the rotary drive motor passes through the partition and is located in the atomizing chamber. A waterproof seal is provided at the mating point between the shaft and the partition.

[0008] In some embodiments, the partition has a first region and a second region, wherein the second region is used to house the atomizer and hold water, the height of the first region is higher than the maximum water level in the second region, and the shaft of the rotary drive motor is positioned in the first region in conjunction with the partition.

[0009] In some embodiments, the mist outlet channel extends upward along the height direction, the top of the mist outlet channel forms a mist outlet, and the rotation axis of the airflow-driven blades is coaxial with the centerline of the mist outlet channel.

[0010] In some embodiments, a plurality of guide vanes are provided on the inner peripheral wall of the mist outlet, the guide vanes are spaced apart circumferentially along the mist outlet and the guiding direction of the guide vanes is consistent with the rotation direction of the airflow driving blades.

[0011] In some embodiments, the bottom of the mist outlet channel has a water baffle that extends away from the mist outlet channel and is located between the airflow drive blades and the atomizer, and the water baffle has flow passages.

[0012] In some embodiments, the water-blocking element is a sleeve structure in the shape of a frustum cone, and there are multiple atomizers arranged at intervals around the water-blocking element; and / or, when the atomizing humidifier is in operation, the end of the water-blocking element is below the water surface of the atomizing chamber.

[0013] In some embodiments, the atomizing humidifier further includes a water tank and a water pump assembly. The water tank has an opening, and the bottom of the humidifier housing is detachably connected to the opening. The water pump assembly can pump water from the water tank into the atomizing chamber to ensure that the water level in the atomizing chamber is maintained at a preset level.

[0014] The present invention provides an atomizing humidifier in which the atomizer is located on the negative pressure side of the airflow-driven blades. The airflow-driven blades drive water mist out of the humidifier by suction, instead of the positive pressure blowing water mist as in the prior art. This allows for the simultaneous humidification of water mist and the centrifugal force of the rotating airflow-driven blades to fling out larger particles mixed in with the water mist, ensuring that only small particles of water mist are blown out. This effectively prevents the phenomenon of water mist from the mist outlet of the humidifier in the prior art from wetting the ground or tabletop. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an atomizing humidifier according to an embodiment of the present invention. The arrows in the diagram indicate the flow path of the airflow (containing water mist).

[0016] Figure 2This is a schematic diagram of the structure of an atomizing humidifier according to another embodiment of the present invention.

[0017] Figure label:

[0018] 10. Humidifier housing; 11. Atomizing chamber; 111. Air inlet; 12. Atomizer; 13. Mist outlet channel; 131. Mist outlet; 132. Guide vane; 133. Water baffle; 14. Partition; 141. Waterproof seal; 15. Electrical compartment; 16. Sleeve; 21. Airflow drive blades; 22. Rotary drive motor; 23. Shaft; 3. Water tank; 41. Water pump; 42. Water suction pipe; 43. Water outlet pipe; 5. Control panel; 100. Water mist; 101. Water body; 200. Ultrasonic transducer atomizing surface. Detailed Implementation

[0019] See also Figures 1 to 2 As shown, according to an embodiment of the present invention, a misting humidifier is provided, including a humidifier housing 10 and an airflow driving component. The humidifier housing 10 has an atomizing chamber 11, and an atomizer 12 is disposed in the atomizing chamber 11, which can atomize the water 101 it contacts into water mist. The atomizing chamber 11 has a mist outlet channel 13. It is understood that the inlet end of the mist outlet channel 13 is connected to the atomizing chamber 11, and the outlet end is a mist outlet 131. The airflow driving component includes an airflow driving blade 21, which is located in the mist outlet channel 13. Inside the 3, the airflow drive blade 21 divides the mist outlet channel 13 into a positive pressure side (that is, the side near the mist outlet 131) and a negative pressure side (that is, the side near the atomizing chamber 11). The atomizer 12 is located on the negative pressure side of the airflow drive blade 21, so that the water mist 100 generated by the atomizer 12 can be sent out from the mist outlet channel 13 to the external environment under the rotation drive of the airflow drive blade 21, and larger particles in the water mist 100 can be separated from the water mist 100 under the action of the rotation centrifugal force of the airflow drive blade 21. In this technical solution, the atomizer 12 is located on the negative pressure side of the airflow-driven blades 21. The airflow-driven blades 21 drive the water mist 100 out of the humidifier by suction, instead of the positive pressure blowing method used in the prior art. This allows for humidification of the water mist 100 while simultaneously using the centrifugal force of the rotating airflow-driven blades 21 to eject larger particles from the water mist 100, ensuring that only small particles of water mist 100 are blown out. This effectively prevents the phenomenon of water mist from the humidifier outlet wetting the ground or tabletop, as is common in the prior art. It should be noted that the larger water mist particles, after being separated, can be guided back into the atomization chamber 11.

[0020] The aforementioned airflow-driven blades 21 are preferably axial flow blades or other blades that drive airflow axially, so as to fully utilize the centrifugal force of this type of blade rotation to throw out larger particles in the water mist 100. In some cases, oblique flow blades can also be used as an option, which can change the outflow angle of the water mist 100 to a certain extent to meet different user needs. By increasing the diameter of the airflow-driven blades 21 and reducing their operating speed, wind noise can be greatly reduced while ensuring airflow. Theoretically, the aforementioned atomizer 12 can use any component capable of forming water mist. Typically, an ultrasonic atomizer can be used, which is small in size, compact in structure, simple to control, and has a good atomization effect.

[0021] In one specific embodiment, the airflow drive component further includes a rotary drive motor 22. The output end of the rotating shaft 23 of the rotary drive motor 22 is drivenly connected to the airflow drive blade 21. The aforementioned drive connection can be a threaded connection, pin connection, interference fit, or other detachable method between the end of the rotating shaft 23 and the hub of the airflow drive blade 21. The rotary drive motor 22 is located outside the atomization chamber 11. In this technical solution, placing the rotary drive motor 22 outside the atomization chamber 11 can prevent damage to the rotary drive motor 22 from water mist 100 or even water 101, and reduce the protection level of the rotary drive motor 22 (IP rating, for example, a higher-level waterproof fan requires an IP68 waterproof rating). That is, a motor with a lower protection level can be used to drive the blades, which obviously reduces the manufacturing cost of the product.

[0022] In a preferred embodiment, a partition 14 is provided inside the humidifier housing 10, which divides the internal space of the humidifier housing 10 into an atomizing chamber 11 and a closed electrical chamber 15. A rotary drive motor 22 is installed in the electrical chamber 15, which also houses other electrical components related to the humidifier, such as a control board 5 (used to control the operation of the humidifier). The electrical connection side of the atomizer 12 is also located in the electrical chamber 15. The rotating shaft 23 of the rotary drive motor 22 passes through the partition 14 and is located inside the atomizing chamber 11. A waterproof seal 141 is provided at the mating point between the rotating shaft 23 and the partition 14. The waterproof seal 141 is, for example, a waterproof bushing, which can effectively prevent water vapor in the atomizing chamber 11 from entering the electrical chamber 15 while ensuring the rotation of the rotating shaft 23. With this design, the aforementioned partition 14 effectively divides the humidifier housing 10 into two completely independent dry and wet zones. The dry zone is the electrical chamber 15, and the wet zone is the atomization chamber 11. This effectively ensures the safe and reliable operation of the electrical components. More importantly, placing the motor within the enclosed electrical chamber 15 effectively isolates motor noise. Further sound insulation measures can be added to the walls of the electrical chamber 15, such as increasing its thickness or adding sound-absorbing layers, to further isolate motor operating noise. It should be noted that in existing humidifiers, the rotary drive motor is located in an open space, and motor noise is not isolated. In particular, motor noise is often high-frequency noise, and even if the measured value is below 28 decibels, it is still clearly audible in quiet conditions at night.

[0023] See Figure 1 As shown, the partition 14 has a first region and a second region. The second region is used to house the atomizer 12 and hold the water 101. The height of the first region is higher than the maximum water level of the water 101 in the second region. The shaft 23 of the rotary drive motor 22 is positioned in the first region to engage with the partition 14. Specifically, the partition 14 is a disc-shaped plate with its central region protruding upward to form the aforementioned first region. The lower edge of the disc forms the aforementioned second region. In this way, on the one hand, the length of the shaft 23 is designed to be relatively short while ensuring that the water mist 100 is in the negative pressure section of the blades, preventing excessive shaft length disturbance during the process from causing excessive noise in the operation of the airflow-driven blades 21. On the other hand, it can prevent the assembly position of the shaft 23 and the partition 14 from being immersed in the water 101, reducing the probability of leakage.

[0024] In some embodiments, the mist outlet channel 13 extends upward along the height direction, specifically it can extend vertically upward or extend upward at a certain angle to the horizontal plane. The top of the mist outlet channel 13 forms a mist outlet 131. The rotation axis of the airflow drive blade 21 is coaxial with the center line of the mist outlet channel 13, so that large particles separated from the water mist 100 can flow back into the atomization chamber 11 below by their own weight, simplifying the structural design of the entire humidifier.

[0025] The inventors discovered that the water mist 100 airflow driven by the airflow-driven blades 21 has a certain rotation angle. This rotation angle is roughly consistent with the rotation direction of the airflow-driven blades 21. Correspondingly, multiple guide vanes 132 are arranged on the inner peripheral wall of the mist outlet 131. The guide vanes 132 are spaced apart circumferentially along the mist outlet 131, and the guiding direction of the guide vanes 132 is consistent with the rotation direction of the airflow-driven blades 21. This design not only disperses the airflow (mist) but also further separates large water droplets in the rotating airflow from the rotating airflow-driven blades 21 due to centrifugal force.

[0026] In a preferred embodiment, the bottom of the mist outlet channel 13 has a water-blocking member 133. The water-blocking member 133 extends away from the mist outlet channel 13, that is, it extends towards the side where the water body 101 is located. The water-blocking member 133 is located between the airflow driving blade 21 and the atomizer 12. The water-blocking member 133 is constructed with flow holes (not shown in the figure). It is understood that some of the water mist 100 will collide with the water-blocking member 133. This collision process can also reduce the proportion of large water droplets in the water mist 100. The water-blocking member 133, located between the airflow driving blade 21 and the atomizer 12, can block the water column (generally 2-7 cm high) generated by the ultrasonic transducer atomizing surface 200 of the atomizer 12, and only allow the water mist 100 to enter the mist outlet channel 13 through the flow holes, thereby reducing the proportion of large particles contained in the water mist 100. Furthermore, when the atomizing humidifier is in operation, the end of the water baffle 133 is below the surface of the water body 101 in the atomizing chamber 11. This allows the large water droplets separated from the mist 100 to be directly guided into the water body 101 below, thus preventing the dripping noise caused by water droplets falling onto the surface of the water body 101, which is often unbearable noise on quiet nights.

[0027] In one specific embodiment, the water baffle 133 is a sleeve structure in the shape of a frustum cone. There are multiple atomizers 12, which are arranged at intervals around the water baffle 133. The water mist 100 generated by each atomizer 12 enters the mist outlet channel 13 through the flow hole on the water baffle 133 and then flows out of the humidifier, resulting in a better mist humidification effect.

[0028] In another feasible implementation, see Figure 2As shown, the atomizing humidifier also includes a water tank 3 and a water pump assembly. The water tank 3 has a spout, and the bottom of the humidifier housing 10 is detachably connected to the spout. The water pump assembly can pump the water 101 in the water tank 3 into the atomization chamber 11 to ensure that the water level 101 in the atomization chamber 11 is maintained at a preset level. The aforementioned water tank 3 can specifically be a commercially available purified water tank. In this technical solution, the purified water in the water tank 3 is directly pumped into the atomization chamber 11 for atomization by the water pump assembly, which can ensure the stability of the water level and the sufficient water volume in the atomization chamber 11 without manual water filling. At the same time, the atomizing humidifier of the present invention does not require a separate water tank 3, which reduces the overall manufacturing and purchase cost of the humidifier. The aforementioned water pump assembly specifically includes a water pump 41, which is located in the aforementioned electrical room 15 and controlled by the control board 5. The inlet of the water pump 41 is connected to a suction pipe 42, and the outlet is connected to a water outlet pipe 43. The suction pipe 42 extends below the liquid surface of the water tank 3, and the water outlet pipe 43 extends into the atomization chamber 11. Specifically, the humidifier housing 10 has a sleeve 16, which can be fitted onto the opening of the water tank 3. It is understood that the structure of the sleeve 16 and the opening should be matched to ensure that the humidifier housing 10 and its internal components can be stably and reliably positioned on the water tank 3. In a specific embodiment, the purified water tank has a large capacity (18L). Based on the water consumption of a normal humidifier of 300ml per hour, one tank of purified water can be used for 60 hours, avoiding the inconvenience of refilling multiple times.

[0029] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A misting humidifier, characterized in that, The device includes a humidifier housing (10) and an airflow driving component. The humidifier housing (10) has an atomizing chamber (11) and an atomizer (12) disposed therein. The atomizing chamber (11) has a mist outlet channel (13). The airflow driving component includes an airflow driving blade (21), which is located within the mist outlet channel (13), and the atomizer (12) is located on the negative pressure side of the airflow driving blade (21). The water produced by the atomizer (12) The mist (100) can be sent out from the mist outlet channel (13) to the external environment under the rotational drive of the airflow drive blade (21), and larger particles in the water mist (100) can be separated from the water mist (100) under the action of the centrifugal force of the rotation of the airflow drive blade (21); the airflow drive component also includes a rotary drive motor (22), the output end of the shaft (23) of the rotary drive motor (22) is drivenly connected to the airflow drive blade (21), and the... The rotary drive motor (22) is located outside the atomizing chamber (11) and outside the mist outlet channel (13); a partition (14) is provided inside the humidifier housing (10), the partition (14) dividing the internal space of the humidifier housing (10) into the atomizing chamber (11) and a closed electrical chamber (15), the rotary drive motor (22) is installed in the electrical chamber (15), and the rotating shaft (23) of the rotary drive motor (22) passes through the partition (14) and is located outside the atomizing chamber (11). Inside the atomizing chamber (11), a waterproof seal (141) is provided at the joint between the rotating shaft (23) and the partition (14); the partition (14) has a first region and a second region, wherein the second region is used to set the atomizer (12) and hold the water body (101), the height of the first region is higher than the maximum water level of the water body (101) in the second region, and the joint position of the rotating shaft (23) of the rotary drive motor (22) and the partition (14) is located in the first region.

2. The atomizing humidifier according to claim 1, characterized in that, The airflow-driven blade (21) is an axial flow blade or an oblique flow blade; and / or, the atomizer (12) is an ultrasonic atomizer.

3. The atomizing humidifier according to claim 1, characterized in that, The mist outlet channel (13) extends upward along the height direction, and a mist outlet (131) is formed at the top of the mist outlet channel (13). The rotation axis of the airflow drive blade (21) is coaxial with the center line of the mist outlet channel (13).

4. The atomizing humidifier according to claim 3, characterized in that, The inner peripheral wall of the mist outlet (131) is provided with a plurality of guide vanes (132), the guide vanes (132) are arranged at intervals along the circumference of the mist outlet (131), and the guiding direction of the guide vanes (132) is consistent with the rotation direction of the airflow driving blade (21).

5. The atomizing humidifier according to claim 3, characterized in that, The bottom of the mist outlet channel (13) has a water baffle (133), which extends away from the mist outlet channel (13) and is located between the airflow drive blade (21) and the atomizer (12). The water baffle (133) has a flow passage hole.

6. The atomizing humidifier according to claim 5, characterized in that, The water baffle (133) is a sleeve structure in the shape of a frustum cone. There are multiple atomizers (12), and the multiple atomizers (12) are arranged at intervals around the water baffle (133); and / or, when the atomizing humidifier is in operation, the end of the water baffle (133) is below the liquid surface of the water body (101) in the atomizing chamber (11).

7. The atomizing humidifier according to claim 1, characterized in that, It also includes a water tank (3) and a water pump assembly. The water tank (3) has a bucket opening. The bottom of the humidifier housing (10) is detachably connected to the bucket opening. The water pump assembly can pump the water (101) in the water tank (3) into the atomizing chamber (11) to ensure that the water level (101) in the atomizing chamber (11) is maintained at a preset level.

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