Humidifying fan

Abstract

The utility model discloses a humidifying fan which comprises a fan shell, an air duct is formed in the fan shell, and a fan air outlet is formed in the fan shell; the fan assembly is arranged in the air duct and is connected with the fan shell; the water tank is connected with the fan shell, an atomizing chamber is arranged between the water tank and the fan shell, an atomizing air outlet is formed in the fan shell, and the atomizing air outlet is communicated with the atomizing chamber; one end of the atomization generator is arranged in the atomization chamber, and the other end of the atomization generator is arranged in the water tank; the base is rotationally connected with the water tank; and the driving assembly is arranged on the water tank and / or the base and used for driving the base and the water tank to rotate relatively. By means of the structure, the relative position relation of the fan air outlet and the atomization air outlet is not changed when the fan air outlet and the atomization air outlet rotate, and blown mixed airflow is always kept stable.

Description

Technical Field

[0001] The present application relates to the field of fans, and in particular to a humidifying fan. Background Art

[0002] In the hot summer, fans have become a must-have item for people to eliminate the heat. In hot climates, in order to enhance the cooling effect of fans, people will cool down by increasing the air humidity while increasing the air flow rate. Therefore, a humidifying fan is extended.

[0003] In the prior art, the humidifying fan generally adopts a structure in which the atomizing structure is arranged in front of the fan. When the fan and the atomizing structure are both in working state, the fan drives the atomized water vapor generated by the atomizing structure to move by blowing out airflow, thereby achieving the effect of atomizing blowing.

[0004] The inventor of the present invention found in his research that the atomizing structure of the humidifying fan in the prior art is fixed in position, and when the fan rotates, the position of the atomizing structure does not rotate with the fan. This structure makes the mixing effect of the blown airflow and the atomized water vapor different at different rotation positions of the humidifying fan, resulting in uneven mixing water vapor effects. Utility Model Content

[0005] The purpose of the present application is to provide a humidifying fan with good diffusion and good mixing effect of air flow and atomized water vapor.

[0006] The present application provides a humidifying fan, comprising:

[0007] A fan housing, wherein an air duct is provided in the fan housing, and a fan outlet is provided on the fan housing;

[0008] A fan assembly, the fan assembly is arranged in the air duct and connected to the fan housing;

[0009] A water tank, the water tank is connected to the fan housing, an atomization chamber is provided between the water tank and the fan housing, an atomization air outlet is provided on the fan housing, and the atomization air outlet is communicated with the atomization chamber;

[0010] an atomizing generator, one end of which is disposed in the atomizing chamber, and the other end of which is disposed in the water tank;

[0011] A base, the base being rotatably connected to the water tank;

[0012] A driving assembly is arranged on the water tank and / or the base, and is used to drive the base and the water tank to rotate relative to each other.

[0013] Optionally, the driving assembly includes: a driving motor and a driving gear connected to the driving motor, the driving motor is arranged on the water tank, a path ring cooperating with the driving gear is arranged on the base, and the driving gear and the path ring abut against each other; and / or,

[0014] The atomizing air outlet is disposed around the outside or inside of the fan air outlet; and / or,

[0015] The atomization chamber is in communication with the air duct; and / or,

[0016] The atomization chamber is communicated with the water tank.

[0017] Optionally, a first rack is provided on the inner diameter surface of the path ring, the first rack is arranged around the inner diameter surface, and the driving gear is meshed with the first rack.

[0018] Optionally, the surface of the base is concave to form a storage groove, the path ring is arranged in the storage groove, the path ring and the storage groove are abutted against each other, and the path ring rotates relative to the storage groove under the action of the first external force.

[0019] Optionally, a second rack is disposed around the inner surface of the storage groove, and a plurality of limiting protrusions cooperating with the second rack are formed on the outer peripheral surface of the path ring; and / or,

[0020] The bottom surface of the water tank faces the base protrusion to form a connecting column, and the bottom of the storage groove faces the water tank protrusion to form a connecting ring. The connecting column is inserted into the connecting ring, and a connecting stop edge abutting against the connecting ring is provided on the connecting column. A fixed seat is provided at the bottom of the base, and the fixed seat is connected to the connecting ring, and the fixed seat abuts against the base.

[0021] Optionally, the path ring is provided with an escape groove on the side of the limiting protrusion facing away from the second rack, and the limiting protrusion and the path ring are connected via a deformable portion so that the limiting protrusion retreats to the escape groove after being subjected to radial force.

[0022] Optionally, both sides of the limiting protrusion are recessed inward to form a first limiting groove and a second limiting groove, and there is a smooth transition between the first limiting groove and the limiting protrusion, and there is a smooth transition between the second limiting groove and the limiting protrusion.

[0023] Optionally, a plurality of first protrusions are raised on the upper surface of the path ring, and the plurality of first protrusions are spaced around to form a first abutment portion, and the first abutment portion abuts against the water tank or the water tank abuts against the first abutment portion after being pressed; and / or,

[0024] The lower surface of the path ring is raised to form a second protrusion, and the plurality of second protrusions are spaced and surrounded to form a second abutment, and the second abutment abuts against the base.

[0025] Optionally, the bottom of the water tank is convex to form an arc-shaped abutting portion, and the arc-shaped abutting portion abuts against at least two first convex portions of the first abutting portion; and / or,

[0026] The first protrusion and the second protrusion both have smooth surfaces.

[0027] Optionally, a mounting groove is provided on the water tank, the drive motor is arranged in the mounting groove, and the rotating shaft of the drive motor is connected to the drive gear; and / or,

[0028] The driving gear is provided with a polygonal connecting groove, and the polygonal connecting groove is cooperatively connected with the rotating shaft of the driving motor; and / or,

[0029] The connection positions between the two ends of the arc-shaped abutting portion and the bottom surface of the water tank of the water tank are smoothly transitioned, and both ends of the arc-shaped abutting portion have smooth surfaces.

[0030] The beneficial effects of the embodiment of the present application are: the atomizing chamber is arranged between the fan housing and the water tank, the atomizing air outlet of the atomizing chamber is arranged on the fan housing, the water tank is rotatably connected with the base, and a driving assembly for driving the two to rotate relative to each other is arranged between the water tank and the base. When the driving assembly drives the water tank to rotate relative to the base, the fan housing and the atomizing chamber will rotate synchronously with the water tank, because the fan air outlet and the atomizing air outlet are both arranged on the fan housing, and the fan air outlet and the atomizing air outlet rotate synchronously when the fan housing rotates. This structure makes the relative position relationship between the fan air outlet and the atomizing air outlet unchanged when rotating, so that the mixed flow of the blown air flow and the atomized water vapor is always kept stable, and the mixed flow effect is unified. At the same time, because the water tank, the atomizing chamber and the atomizing generator can rotate synchronously, the position between the atomizing generator and the water tank will not change with the rotation, and the working state of the atomizing generator is stable in this state, and the atomizing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 This is a schematic diagram of the overall structure of a humidifying fan according to a specific embodiment of the present application;

[0033] Figure 2 A cross-sectional schematic diagram of a humidifying fan according to a specific embodiment of the present application;

[0034] Figure 3This is a schematic diagram of the exploded structure of a base and a driving assembly of a specific embodiment of the present application;

[0035] Figure 4 This is a schematic diagram of the structure of a path ring of a specific embodiment of the present application;

[0036] Figure 5 This is a schematic structural diagram of a water tank according to a specific embodiment of the present application;

[0037] Figure 6 This is a schematic diagram of the structure of a driving gear according to a specific embodiment of the present application.

[0038] Description of the drawings: 1. Fan housing; 11. Connecting bracket; 12. Fan air outlet; 13. Atomizing air outlet; 14. Atomizing air inlet; 2. Fan assembly; 3. Water tank; 31. Bottom of water tank; 32. Assembly groove; 33. Arc-shaped abutment portion; 34. Connecting column; 35. Connecting stop edge; 4. Atomizing generator; 5. Atomizing chamber; 6. Base; 61. Storage groove; 62. Second rack; 63. Connecting ring; 64. Fixed seat; 7. Driving assembly; 71. Driving motor; 711. Rotating shaft; 72. Path ring; 721. First rack; 722. Limiting protrusion; 723. First limiting groove; 724. Second limiting groove; 725. Deformable portion; 726. Avoiding groove; 727. First abutment portion; 728. First protrusion; 73. Driving gear; 731. Polygonal connecting groove. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0041] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of the humidifying fan in this embodiment; Figure 2 This is a cross-sectional schematic diagram of the humidifying fan of this embodiment.

[0042] like Figure 1 and Figure 2 As shown, a humidifying fan comprises: a fan housing 1, a fan assembly 2, a water tank 3, an atomizing generator 4, a base 6 and a driving assembly 7. Among them, an air duct is provided in the fan housing 1, and a fan air outlet 12 is provided on the fan housing 1; the fan assembly 2 is arranged in the air duct and connected to the fan housing 1; the water tank 3 is connected to the fan housing 1, and an atomizing chamber 5 is provided between the water tank 3 and the fan housing 1, and an atomizing air outlet 13 is provided on the fan housing 1, and the atomizing air outlet 13 is communicated with the atomizing chamber 5; one end of the atomizing generator 4 is arranged in the atomizing chamber 5, and the other end of the atomizing generator 4 is arranged in the water tank 3; the base 6 is rotatably connected to the water tank 3; the driving assembly 7 is arranged on the water tank 3 and / or the base 6, and is used to drive the base 6 and the water tank 3 to rotate relative to each other.

[0043] In this embodiment, the fan assembly 2 can be (not limited to): a two-phase motor or a three-phase motor. In terms of motor structure, the fan assembly 2 can be (not limited to): an inner rotor motor or an outer rotor motor. In terms of the structure of the fan blades, the fan assembly 2 can be (not limited to): an axial flow fan or a diagonal flow fan. In the specific application process, the required fan assembly 2 can be selected according to the needs of the specific application scenario, which is not limited here.

[0044] The water tank 3 refers to a container for holding liquid water or fragrance liquid. In order to facilitate the addition of the above liquid into the water tank 3, the water tank 3 and the fan housing 1 are connected in a detachable manner, and the detachable connection method includes (but is not limited to): screw connection, snap connection or magnetic coupling connection. However, the connection method between the water tank 3 and the fan housing 1 is not limited to this. In some embodiments, the water tank 3 can be fixedly connected to the fan housing 1, and a water inlet is opened on the water tank 3 or the water tank 3 is designed to be an openable and closable structure.

[0045] The atomizer 4 in this embodiment includes (but is not limited to): an ultrasonic atomizer, a vibration atomizer or a spray humidifier. Depending on the specific application scenario, different types of atomizer generators 4 can be selected for use.

[0046] The driving assembly 7 in this embodiment is arranged on the water tank 3 and / or the base 6. In some embodiments, the driving assembly 7 is a driving motor 71, which is arranged on the water tank 3, and the rotating shaft 711 of the driving motor 71 or a component connected to the rotating shaft 711 abuts against the base 6. In some embodiments, the driving assembly 7 is a driving motor 71, which is arranged on the base 6, and the rotating shaft 711 of the driving motor 71 or a component connected to the rotating shaft 711 abuts against the water tank 3.

[0047] In some embodiments, the driving assembly 7 includes two parts, namely: a driving motor 71 and a path limiting mechanism that cooperates with the driving motor 71, and the path limiting mechanism is meshed with the rotating shaft 711 of the driving motor 71. The driving motor 71 and the path limiting mechanism are arranged separately. When the driving motor 71 is arranged on the water tank 3, the path limiting mechanism is arranged on the base 6; when the driving motor 71 is arranged on the base 6, the path limiting mechanism is arranged on the water tank 3.

[0048] In the above embodiment, the atomizing chamber 5 is arranged between the fan housing 1 and the water tank 3, the atomizing air outlet 13 of the atomizing chamber 5 is arranged on the fan housing 1, the water tank 3 is rotatably connected to the base 6, and a driving assembly 7 for driving the two to rotate relative to each other is arranged between the water tank 3 and the base 6. When the driving assembly 7 drives the water tank 3 to rotate relative to the base 6, the fan housing 1 and the atomizing chamber 5 will rotate synchronously with the water tank 3, because the fan air outlet 12 and the atomizing air outlet 13 are both provided on the fan housing 1, and the fan air outlet 12 and the atomizing air outlet 13 rotate synchronously when the fan housing 1 rotates. This structure makes the relative position relationship between the fan air outlet 12 and the atomizing air outlet 13 unchanged when rotating, so that the mixed flow of the blown air flow and the atomized water vapor is always kept stable, and the mixed flow effect is unified. At the same time, since the water tank 3, the atomization chamber 5 and the atomization generator 4 can rotate synchronously, the position between the atomization generator 4 and the water tank 3 will not change with the rotation. In this state, the working state of the atomization generator 4 is stable and the atomization effect is better.

[0049] In some embodiments, the driving assembly 7 includes: a driving motor 71 and a driving gear 73 connected to the driving motor 71, the driving motor 71 is arranged on the water tank 3, and a path ring 72 is arranged on the base 6 to cooperate with the driving gear 73, and the driving gear 73 and the path ring 72 are in contact with each other. In this embodiment, the path limiting mechanism is the path ring 72. The driving gear 73 and the path ring 72 cooperate with each other, which can increase the interaction force between the driving gear 73 and the path ring 72, so that the shaking rotation of the humidifying fan is more stable. At the same time, because the path ring 72 has a guiding and limiting effect on the movement path of the driving gear 73, the rotation range of the humidifying fan can be controlled.

[0050] In some embodiments, the path limiting mechanism is (but not limited to): a rack on the inner circumference of the storage groove 61, tooth marks on the surface of the base 3, etc.

[0051] In some embodiments, the atomizing air outlet 13 is disposed around the outside or inside of the fan air outlet 12 .

[0052] The atomizing air outlet 13 in this embodiment is configured as an arc-shaped slit. However, the structure of the atomizing air outlet 13 is not limited thereto, and according to different specific application scenarios, the structure of the atomizing air outlet 13 can be (but not limited to): a circular, polygonal, elliptical, heart-shaped or other shaped hole.

[0053] The number of the atomization air outlets 13 in this embodiment can be (but not limited to): 1, 2, 3, 4, 5 or more.

[0054] The atomizing air outlets 13 are distributed around the circumference of the fan air outlet 12, so that the airflow flowing out of each air outlet can be mixed with the atomized water vapor flowing out of the atomizing air outlet 13 at the corresponding position. Compared with the traditional point atomization, more fan airflow can be mixed with atomized water vapor, so that the mixing effect of the blown airflow is better and more uniform, which greatly improves the cooling effect of the humidification fan.

[0055] The atomizing air outlet 13 is arranged on the outside of the fan air outlet 12, but the arrangement of the atomizing air outlet 13 is not limited to this. According to different specific application scenarios, in some embodiments, when a connecting bracket 11 is arranged at the center of the fan housing 1, the atomizing air outlet 13 can also be opened on the connecting bracket 11. At this time, the atomizing air outlet 13 is located on the inner side of the fan air outlet 12, and the atomizing chamber 5 is connected to the connecting bracket 11 through a duct or a connecting channel.

[0056] In some embodiments, the atomizing chamber 5 is connected to the air duct. After the atomizing chamber 5 is connected to the air duct, an atomizing air inlet 14 is formed, and the airflow in the air duct can enter the atomizing chamber 5 through the atomizing air inlet 14, pushing the atomized water vapor in the atomizing chamber 5 to flow quickly toward the atomizing air outlet 13, thereby improving the blowing efficiency of the atomized water vapor at the atomizing air outlet 13, making the blown atomized water vapor have a higher initial velocity, and the mixed flow effect of the airflow and the atomized water vapor is more obvious.

[0057] In some embodiments, the atomizing chamber 5 is connected to the water tank 3. The atomizing chamber 5 and the water tank 3 are connected to each other, so that the liquid water in the atomizing chamber 5 can flow into the water tank 3, avoiding the accumulation of liquid water and flooding, protecting the atomizing generator 4, making the operation of the atomizing generator 4 stable, and the rate of atomized water vapor generation tends to be consistent. At the same time, it can also replenish water for the water tank 3, reduce the number of times the water tank 3 is replenished, and extend the use time of the humidifying fan after a single water replenishment.

[0058] In some embodiments, a first rack 721 is disposed on the inner diameter surface of the path ring 72 . The first rack 721 is disposed around the inner diameter surface, and the driving gear 73 is meshed with the first rack 721 .

[0059] See also Figure 3 and Figure 4 , Figure 3This is a schematic diagram of the base and exploded structure of this embodiment; Figure 4 Schematic diagram of the structure of the path ring in this embodiment.

[0060] like Figure 3 and Figure 4 As shown, by setting the first rack 721 on the inner surface of the path ring 72, the driving gear 73 and the first rack 721 are meshed with each other. The setting of the first rack 721 can increase the interaction force between the driving gear 73 and the path ring 72, so that the shaking rotation of the humidifying fan is more stable, the rotation force is stronger, and the performance of the rotation against external interference is more excellent. At the same time, because the first rack 721 has a guiding and limiting effect on the movement path of the driving gear 73, the rotation range of the humidifying fan can be controlled.

[0061] In some embodiments, the surface of the base 6 is concave to form a storage groove 61, and the path ring 72 is disposed in the storage groove 61. The path ring 72 and the storage groove 61 abut against each other, and the path ring 72 rotates relative to the storage groove 61 under the action of the first external force.

[0062] The storage slot 61 and the path ring 72 are in contact with each other, but can rotate relative to each other under a certain external force. This structure enables the humidifying fan to rotate along the path ring 72 under normal conditions, and when the user rotates it with his hand, the path ring 72 can rotate relative to the storage slot 61, and the user can manually adjust the orientation of the humidifying fan, which is convenient for the user.

[0063] The first external force in this embodiment refers to an external force acting on the humidifying fan to cause the storage slot 61 and the path ring 72 to rotate relative to each other. The specific value is determined according to the force required for the relative rotation of the storage slot 61 and the path ring 72. In specific application scenarios, the magnitude of the first external force varies in different usage environments and is not limited here.

[0064] In some embodiments, a second rack 62 is disposed around the inner surface of the storage groove 61 , and a plurality of limiting protrusions 722 cooperating with the second rack 62 are protruded on the outer peripheral surface of the path ring 72 .

[0065] In this embodiment, the second rack 62 can completely cover the inner circumference of the storage slot 61. However, the length of the second rack 62 is not limited thereto, and according to different specific application scenarios, the second rack 62 can be divided into multiple sections, which are arranged at intervals on the inner circumference of the storage slot 61 or only cover a part of the inner circumference of the storage slot 61.

[0066] The mutual meshing cooperation between the limiting protrusion 722 and the second rack 62 stabilizes the first external force required for the rotation between the storage slot 61 and the path ring 72. Only when the first external force can enable the relative movement between the limiting protrusion 722 and the second rack 62, the storage slot 61 and the path ring 72 will rotate relative to each other. This structure has a strong anti-interference ability, so that the conditions required for the rotation of the storage slot 61 and the path ring 72 are stable and not affected by accidental external forces.

[0067] In some embodiments, the bottom surface 31 of the water tank 3 protrudes toward the base 6 to form a connecting column 34, and the bottom of the storage groove 61 protrudes toward the water tank 3 to form a connecting ring 63. The connecting column 34 is inserted into the connecting ring 63, and a connecting stop edge 35 abutting against the connecting ring 63 is provided on the connecting column 34. A fixed seat 64 is provided at the bottom of the base 6, and the fixed seat 64 is connected to the connecting ring 63, and the fixed seat 64 abuts against the base 6.

[0068] The arrangement of the connecting ring 63 and the connecting column 34 enables the water tank 3 to rotate relative to the base 6. The connecting column 34 is provided with a connecting stop 35 that abuts against the connecting ring 63, so that there is a gap between the water tank 3 and the base 6. The existence of the gap prevents the water tank 3 and the base 6 from being completely fitted together, reduces the friction area between the water tank 3 and the base 6, and makes the rotation smoother.

[0069] In some embodiments, the connecting stop 35 can be a bearing, wherein the inner ring of the bearing is sleeved on the connecting column 34, and the outer ring of the bearing abuts against the connecting ring 63. This structure can further reduce the rotation resistance of the water tank 3 and the base 6, making the humidifying fan rotate more smoothly and lightly.

[0070] The fixing seat 64 and the connecting column 34 are connected by screws, rivets, welding or adhesive connection, and the fixing seat 64 and the base 6 abut against each other to prevent the connecting column 34 from detaching from the connecting ring 63, so that the base 6 and the water tank 3 can both rotate with each other and be connected to each other.

[0071] In some embodiments, a clearance groove 726 is formed on the side of the limiting protrusion 722 facing away from the second rack 62 of the path ring 72, and the limiting protrusion 722 and the path ring 72 are connected by a deformable portion 725 so that the limiting protrusion 722 retreats to the clearance groove 726 after being subjected to radial force.

[0072] The setting of the avoidance groove 726 enables the limiting protrusion 722 to retreat toward the avoidance groove 726 after being squeezed by the teeth of the second rack 62, thereby reducing the squeezing force between the limiting protrusion 722 and the second rack 62, and disengaging the limiting protrusion 722 from the currently contacting teeth, thereby realizing the rotation between the storage slot 61 and the path ring 72.

[0073] The arrangement of the avoidance groove 726 and the easily deformable portion 725 can reduce the interaction force between the storage groove 61 and the path ring 72 when the two rotate, thereby reducing the friction force when the two rotate relative to each other, making the rotation of the two smoother and lighter, while also reducing the friction between the storage groove 61 and the path ring 72, reducing the friction loss between the second rack 62 and the limiting protrusion 722, and extending the service life of the two.

[0074] In some embodiments, both sides of the limiting protrusion 722 are recessed inward to form a first limiting groove 723 and a second limiting groove 724 , and there is a smooth transition between the first limiting groove 723 and the limiting protrusion 722 , and there is a smooth transition between the second limiting groove 724 and the limiting protrusion 722 .

[0075] The first limiting groove 723 and the second limiting groove 724 are arranged on both sides of the limiting protrusion 722, so that the teeth of the second rack 62 can be prevented from contacting with the body of the path ring 72, so that the first external force required for the rotation of the limiting protrusion 722 and the second rack 62 remains stable, and the outer peripheral surface of the path ring 72 is protected from being scratched by the second rack 62. At the same time, the limiting protrusion 722 and the first limiting groove 723 and the second limiting groove 724 have a smooth transition, so that the first limiting groove 723 and the second limiting groove 724 have a guiding function, which facilitates the limiting protrusion 722 to rotate on the second rack 62. The provision of the first limiting groove 723 and the second limiting groove 724 can also make it easier for the limiting protrusion 722 to retreat, thereby reducing the internal stress between the limiting protrusion 722 and the easily deformable portion 725 when the limiting protrusion 722 retreats, and making the arc-shaped force-bearing surface formed by the limiting protrusion 722 and the easily deformable portion 725 become an "S"-shaped or "Z"-shaped force-bearing surface, which greatly reduces the internal resistance that needs to be overcome for the limiting protrusion 722 to retreat, reduces the rotational resistance, and increases the fatigue resistance of the limiting protrusion 722 and the easily deformable portion 725.

[0076] In some embodiments, a plurality of first protrusions 728 are raised on the upper surface of the path ring 72, and the plurality of first protrusions 728 are spaced around to form a first abutment 727, and the first abutment 727 abuts against the water tank 3 or the water tank 3 abuts against the first abutment 727 after being pressed.

[0077] After the first abutting portion 727 abuts against the water tank 3, when the user manually rotates the humidifying fan, the friction between the first abutting portion 727 and the water tank 3 drives the path ring 72 to rotate, thereby realizing manual steering adjustment of the humidifying fan. In normal conditions, the first abutting portion 727 and the water tank 3 are separated from each other. When the water tank 3 is subjected to external pressing force, the first abutting portion 727 and the water tank 3 abut against each other, thereby providing friction power for the rotation of the path ring 72.

[0078] In some embodiments, the first abutting portion 727 and the water tank 3 abut against each other in a normal state, but the interaction force between the first abutting portion 727 and the water tank 3 in this state is less than the value set by the first external force, which is insufficient to drive the path ring 72 to rotate. When the water tank 3 is subjected to external pressing force, the interaction force between the first abutting portion 727 and the water tank 3 is greater than the first external force, which drives the path ring 72 to rotate.

[0079] The first protrusion 728 is a contact point protruding from the upper surface of the path ring 72. However, the structure of the first protrusion 728 is not limited thereto, and in some embodiments, the first protrusion 728 can be a ball.

[0080] The number of the first protrusions 728 can be (but is not limited to): 2, 3, 4, 5 or more.

[0081] The setting of the first abutting portion 727 increases the contact points between the water tank 3 and the path ring 72, so that when the user manually rotates the humidifying fan, the force is directly applied to the path ring 72 without the need for transmission through the drive motor 71 and the drive gear 73. Compared with the method of transmitting external force through the drive motor 71 and the drive gear 73, and then the drive gear 73 drives the path ring 72 to rotate. The method of the first abutting portion 727 abutting against the water tank 3 is more direct in force transmission, and the force required to rotate the path ring 72 is smaller, which is more convenient for the user to operate.

[0082] In some embodiments, a second protrusion (not shown) is raised on the lower surface of the path ring 72 , and a plurality of second protrusions are spaced around to form a second abutment portion, which abuts against the base 6 .

[0083] The second protrusion is a contact point protruding from the lower surface of the path ring 72. However, the structure of the second protrusion is not limited thereto, and in some embodiments, the second protrusion can be a ball.

[0084] The number of the second protrusions can be (but not limited to): 2, 3, 4, 5 or more.

[0085] The provision of the second abutting portion reduces the contact area between the path ring 72 and the base 6, so that the resistance of the path ring 72 during rotation is smaller, thereby improving the smoothness of manual rotation of the humidifying fan.

[0086] See also Figure 5 , Figure 5 Schematic diagram of the structure of the base of this embodiment.

[0087] like Figure 5 As shown, in some embodiments, the bottom of the water tank 3 is raised to form an arc-shaped abutting portion 33 , and the arc-shaped abutting portion 33 abuts against at least two first protruding portions 728 of the first abutting portion 727 .

[0088] The setting of the arc-shaped abutment portion 33 thickens the contact position between the water tank 3 and the first abutment portion 727, so that the bottom of the water tank 3 and the first contact portion can interact with each other for a long time, thereby improving the durability of the humidification fan and protecting the water tank 3. At the same time, the setting of the arc-shaped abutment portion 33 increases the gap between the water tank 3 and the base 6 as a whole, which can effectively prevent the surface of the water tank 3 and the surface of the base 6 from accidentally contacting each other under the action of external force, thereby improving the smoothness of the rotation of the humidification fan.

[0089] In some embodiments, the first protrusion 728 and the second protrusion both have smooth surfaces. The smooth surfaces of the first protrusion 728 and the second protrusion can protect other parts and surfaces in contact with the first protrusion 728 and the second protrusion, and reduce the loss caused by friction scratches. At the same time, the resistance of the path ring 72 when rotating relative to the base 6 or the water tank 3 is reduced, so that the humidification fan rotates more smoothly.

[0090] In some embodiments, a mounting groove 32 is provided on the water tank 3, the drive motor 71 is disposed in the mounting groove 32, and the rotating shaft 711 of the drive motor 71 is connected to the drive gear 73. The provision of the mounting groove 32 can protect the drive motor 71 and improve the stability of the assembly of the drive motor 71. The mounting groove 32 is provided on the bottom surface 31 of the water tank 3.

[0091] See also Figure 6 , Figure 6 Schematic diagram of the structure of the driving gear in this embodiment.

[0092] like Figure 6 As shown, in some embodiments, a polygonal connecting groove 731 is provided on the driving gear 73, and the polygonal connecting groove 731 is matched and connected with the rotating shaft 711 of the driving motor 71. Matching the rotating shaft 711 and the polygonal connecting groove 731 improves the strength of the rotating shaft 711 and the polygonal connecting groove 731, so that the rotating shaft 711 and the polygonal connecting groove 731 are not prone to slippage.

[0093] In some embodiments, the connection positions of the two ends of the arc-shaped abutting portion 33 and the water tank bottom surface 31 of the water tank 3 are smoothly transitioned, and both ends of the arc-shaped abutting portion 33 have smooth surfaces. The connection positions of the arc-shaped abutting portion 33 and the water tank bottom surface 31 of the water tank 3 are smoothly transitioned, and both ends of the arc-shaped abutting portion 33 have smooth surfaces, which can protect other parts and surfaces in contact with the arc-shaped abutting portion 33 and reduce losses caused by friction scratches.

[0094] It should be noted that any implementation in this embodiment can be implemented independently or in combination with one or more other implementations. When implemented in combination, the combination method should not be limited to the combination methods listed in this embodiment.

[0095] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not intended to be additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A humidifying fan, characterized in that: include: A fan housing, wherein an air duct is provided in the fan housing, and a fan outlet is provided on the fan housing; A fan assembly, the fan assembly is arranged in the air duct and connected to the fan housing; A water tank, the water tank is connected to the fan housing, an atomization chamber is provided between the water tank and the fan housing, an atomization air outlet is provided on the fan housing, and the atomization air outlet is communicated with the atomization chamber; an atomizing generator, one end of which is disposed in the atomizing chamber, and the other end of which is disposed in the water tank; A base, the base being rotatably connected to the water tank; A driving assembly is arranged on the water tank and / or the base, and is used to drive the base and the water tank to rotate relative to each other.

2. The humidifying fan according to claim 1, characterized in that: The driving assembly comprises: a driving motor and a driving gear connected to the driving motor, the driving motor is arranged on the water tank, a path ring matched with the driving gear is arranged on the base, and the driving gear and the path ring abut against each other; and / or, The atomizing air outlet is disposed around the outside or inside of the fan air outlet; and / or, The atomization chamber is in communication with the air duct; and / or, The atomization chamber is communicated with the water tank.

3. The humidifying fan according to claim 2, characterized in that: A first rack is disposed on the inner diameter surface of the path ring, and the driving gear is meshed with the first rack.

4. The humidifying fan according to claim 2, characterized in that: The surface of the base is concave to form a storage groove, the path ring is arranged in the storage groove, the path ring and the storage groove are in contact with each other, and the path ring rotates relative to the storage groove under the action of a first external force.

5. The humidifying fan according to claim 4, characterized in that: A second rack is disposed around the inner surface of the storage groove, and a plurality of limiting protrusions cooperating with the second rack are formed on the outer circumferential surface of the path ring; and / or, The bottom surface of the water tank faces the base protrusion to form a connecting column, and the bottom of the storage groove faces the water tank protrusion to form a connecting ring. The connecting column is inserted into the connecting ring, and a connecting stop edge abutting against the connecting ring is provided on the connecting column. A fixed seat is provided at the bottom of the base, and the fixed seat is connected to the connecting ring, and the fixed seat abuts against the base.

6. The humidifying fan according to claim 5, characterized in that: The path ring is provided with an escape groove on the side of the limiting protrusion facing away from the second rack, and the limiting protrusion and the path ring are connected via a deformable portion so that the limiting protrusion retreats to the escape groove after being subjected to radial force.

7. The humidifying fan according to claim 5 or 6, characterized in that: Both sides of the limiting protrusion are recessed inward to form a first limiting groove and a second limiting groove. There is a smooth transition between the first limiting groove and the limiting protrusion, and there is a smooth transition between the second limiting groove and the limiting protrusion.

8. The humidifying fan according to claim 2, characterized in that: A plurality of first protrusions are raised on the upper surface of the path ring, and the plurality of first protrusions are spaced around to form a first abutment, and the first abutment abuts against the water tank or the water tank abuts against the first abutment after being pressed; and / or, The lower surface of the path ring is raised to form a second protrusion, and the plurality of second protrusions are spaced and surrounded to form a second abutment, and the second abutment abuts against the base.

9. The humidifying fan according to claim 8, characterized in that: The bottom of the water tank is convex to form an arc-shaped abutting portion, and the arc-shaped abutting portion abuts against at least two first convex portions of the first abutting portion; and / or, The first protrusion and the second protrusion both have smooth surfaces.

10. The humidifying fan according to claim 9, characterized in that: The water tank is provided with an assembly groove, the drive motor is arranged in the assembly groove, and the rotating shaft of the drive motor is connected to the drive gear; and / or, The driving gear is provided with a polygonal connecting groove, and the polygonal connecting groove is cooperatively connected with the rotating shaft of the driving motor; and / or, The connection positions between the two ends of the arc-shaped abutting portion and the bottom surface of the water tank of the water tank are smoothly transitioned, and both ends of the arc-shaped abutting portion have smooth surfaces.

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