Fan head and atomizing fan

Abstract

The fan head and the atomizing fan comprise a shell, the shell comprises a front reticulated shell and a rear reticulated shell which are used for airflow to pass through, fan blades are arranged in the shell, an atomizing device is arranged between the fan blades and the front reticulated shell and comprises a mist outlet, an airflow convergence channel is arranged at the position of the central axis in the front reticulated shell, and the mist outlet is communicated with the airflow convergence channel. The airflow convergence channel comprises an air inlet formed in the back face of the front reticulated shell and an air outlet formed in the front face of the front reticulated shell, and the airflow passing area of the air inlet is larger than the airflow passing area of the air outlet. The mist outlet of the atomization device and the air inlet of the airflow convergence channel are correspondingly arranged, so that mixed gas is formed in the airflow convergence channel and exhausted in an accelerated mode, and the problems that a negative pressure area is formed in the center of the front face of the front latticed shell, and then vortex is formed to enable the mixed gas to flow back to the front latticed shell and accumulate and drop are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of fans, and in particular to a fan head and an atomizing fan. Background Technology

[0002] Atomizing fans can quickly increase indoor humidity and lower temperature, making them popular among consumers. Existing atomizing fans typically use high-speed blades, and the mist outlet is located in the center of the front grille. Due to the obstruction of the atomizing components and their fixing structure, a negative pressure exists in the center of the front grille, which easily forms a vortex to attract surrounding air. This causes the mist blown out of the outlet to flow back onto the front grille and accumulate and drip. Utility Model Content

[0003] This invention provides a fan head and an atomizing fan, which solves the problem that existing fans easily form vortices that cause mist to flow back onto the mesh cover and accumulate and drip.

[0004] A fan head includes a housing, comprising a front mesh shell and a rear mesh shell through which airflow passes. The airflow enters the housing through the rear mesh shell and exits through the front mesh shell. A fan blade is disposed within the housing. An atomizing device is disposed between the fan blade and the front mesh shell. The atomizing device includes a mist outlet. An airflow convergence channel is disposed within the front mesh shell. The airflow convergence channel includes an air inlet disposed on the back of the front mesh shell and an air outlet disposed on the front of the front mesh shell. The area through which airflow passes through the air inlet is larger than the area through which airflow passes through the air outlet. The position of the mist outlet corresponds to the air inlet, and the outer diameter of the mist outlet is smaller than the inner diameter of the air inlet.

[0005] Furthermore, the airflow convergence channel is conical in shape and is located at the central axis inside the front mesh shell, and the inner diameter of the air inlet is larger than the inner diameter of the air outlet.

[0006] Furthermore, the inner wall of the air inlet is provided with several guide grooves.

[0007] Furthermore, the front grille is conical in shape, with the air inlet located at the rear end of the front grille where the cross-sectional area is larger, and correspondingly, the air outlet located at the front end of the front grille where the cross-sectional area is smaller.

[0008] Furthermore, a fixing seat is provided inside the outer shell. The fixing seat includes a fixing seat body. The atomizing device is installed on the fixing seat body. A guide ring is provided around the outer periphery of the fixing seat body. The guide ring is used to guide the airflow from the gap between the guide ring and the atomizing device into the air inlet. The end of the guide ring near the front mesh shell is connected to the air inlet.

[0009] Furthermore, the airflow convergence channel is configured with a through shaft between the fan blade and the guide ring.

[0010] Furthermore, a middle frame is provided between the front mesh shell and the rear mesh shell. The front and back sides of the middle frame are fixed to the back side of the front mesh shell and the front side of the rear mesh shell, respectively. A connecting arm is provided on the main body of the fixing base. The left and right ends of the main body of the fixing base are fixed to the inner wall of the middle frame through the connecting arm. A connecting channel is provided in the connecting arm.

[0011] A misting fan includes the aforementioned fan head, characterized in that a U-shaped bracket is provided at the bottom of the outer casing, the left and right ends of the U-shaped bracket are respectively hinged to the left and right sides of the outer casing, and a base is provided at the bottom of the U-shaped bracket.

[0012] Furthermore, the base is equipped with a water tank and a water pump for water storage, and the two ends of the water pump are connected to the atomizing device and the water tank respectively through conduits.

[0013] Furthermore, the base also contains a main board for controlling the circuit and a battery for powering it, and the main board, battery, water pump and atomizing device are electrically connected.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting an airflow convergence channel at the central axis inside the front grille, and setting the mist outlet of the atomizing device to correspond with the air inlet of the airflow convergence channel, the mixed gas is formed in the airflow convergence channel and discharged more quickly. This avoids the formation of a negative pressure area at the center of the front of the front grille, which would cause the mixed gas to flow back to the front grille and accumulate and drip.

[0016] 2. By setting the front grille to a cone shape, the distance from most areas of the front grille to the air outlet is increased, effectively preventing the condensation of water on the surface of the mixed airflow and the accumulation of dripping water.

[0017] 3. The product has a simple structure and is easy to install. Attached Figure Description

[0018] Figure 1 This is a front structural diagram of the fan head of this utility model.

[0019] Figure 2 This is an exploded view of the fan head structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the front grille of this utility model.

[0021] Figure 4 This is a schematic diagram of the middle frame of this utility model.

[0022] Figure 5 This is a front structural diagram of the atomizing fan of this utility model.

[0023] Figure 6 This is an exploded view of the atomizing fan structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Front mesh shell; 111. Airflow convergence channel; 1111. Air inlet; 11111. Guide groove; 1112. Air outlet; 12. Rear mesh shell; 13. Middle frame; 2. Fan blade; 3. Atomizing device; 31. Mist outlet; 4. Mounting base; 41. Mounting base body; 42. Guide ring; 43. Connecting arm; 431. Connecting channel; 5. U-shaped bracket; 6. Base; 61. Water tank; 62. Water pump; 7. Main board; 8. Battery. Detailed Implementation

[0025] The technical solution of this utility model will be further clearly and completely described below with reference to the accompanying drawings and through embodiments. The described embodiments are only some embodiments of this utility model. Other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as front, back, top, bottom, left, right, axial, radial, circumferential, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to the internal communication of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] like Figure 1-4As shown, a fan head includes a housing 1, which includes a front mesh shell 11 and a rear mesh shell 12 through which airflow passes. The airflow enters the housing 1 through the rear mesh shell 12 and exits through the front mesh shell 11. A fan blade 2 is disposed inside the housing 1, and an atomizing device 3 is disposed between the fan blade 2 and the front mesh shell 11. The atomizing device 3 includes a mist outlet 31. An airflow convergence channel 111 is disposed at the central axis inside the front mesh shell 11, and the airflow convergence channel 111 allows airflow passing through it to... As the airflow velocity increases, the airflow convergence channel 111 includes an air inlet 1111 disposed on the back of the front mesh shell 11 and an air outlet 1112 disposed on the front of the front mesh shell 11. The inner diameter of the air inlet 1111 is larger than the inner diameter of the air outlet 1112, such that the area through which the air inlet 1111 passes is larger than the area through which the air outlet 1112 passes. The position of the mist outlet 31 corresponds to the air inlet 1111, and the outer diameter of the mist outlet 31 is smaller than the inner diameter of the air inlet 1111.

[0029] In this embodiment, the fan blade 2 rotates, causing outside air to enter the outer shell 1 from the rear mesh shell 12. The air is then accelerated by the fan blade 2 to form an airflow, which is then blown out from the front mesh shell 11. At this time, some airflow passes through the airflow convergence channel 111. Due to the narrow tube effect, when some airflow passes through the airflow convergence channel 111, the area of ​​the air inlet 1111 for airflow passage is larger than the area of ​​the outlet 1112 for airflow passage, thus restricting the airflow and increasing its velocity. The airflow accelerates through the airflow convergence channel 111. Since the mist outlet 31 of the atomizing device 3 corresponds to the air inlet 1111, the mist generated by the atomizing device 3, driven by the airflow, enters the airflow convergence channel 111 through the air inlet 1111 and mixes with the air to form a mixed gas, which is then accelerated out of the outlet 1112. This effectively avoids the problems encountered in the prior art (e.g., publication number CN117628607A). (Similar problems described in Chinese invention patents) A negative pressure area is formed at the center of the front of the front mesh shell, which in turn creates a vortex that causes the mixed gas to flow back to the front mesh shell and accumulate and drip.

[0030] The shape of the airflow convergence channel 111 can be conical, funnel-shaped, etc.

[0031] like Figure 1-3 As shown, the inner wall of the air inlet 1111 is provided with a plurality of guide grooves 11111, which are used to guide the airflow into the airflow convergence channel 111.

[0032] The fan blade 2 consists of an existing motor and fan blades. The motor drives the fan blades to rotate and apply a forward thrust to the air. The air is then continuously pushed by the reaction force to form a directional airflow.

[0033] The atomizing device 3 is used to atomize liquids such as water and form a mixed gas with the airflow to increase the humidity and cool the space. The atomizing device 3 can be an existing ultrasonic atomizing device, mesh atomizing device, etc. In this embodiment, the atomizing device 3 is a piezoelectric atomizing device.

[0034] like Figure 3 As shown, in order to accommodate the airflow convergence channel 111, the front mesh shell 11 needs to have a certain thickness, and its shape can be cylindrical, conical, etc. In this embodiment, the shape of the front mesh shell 11 is preferably conical. The air inlet 1111 is located at the back end of the front mesh shell 11 with a larger cross-sectional area, and correspondingly, the air outlet 1112 is located at the front end of the front mesh shell 11 with a smaller cross-sectional area. By setting the front mesh shell 11 to a conical shape and cooperating with the airflow convergence channel 111, a negative pressure area is avoided at the outer center of the front of the front mesh shell 11. This greatly reduces the probability of the mixed gas discharged from the air outlet 1112 flowing back to the front mesh shell 11, and increases the distance from most areas of the front mesh shell 11 to the air outlet 1112, effectively preventing the condensation and dripping of water on the surface of the mixed airflow on the front mesh shell 11.

[0035] like Figure 2 and 4 As shown, a fixing seat 4 is provided inside the outer shell 1. The fixing seat 4 includes a fixing seat body 41. The atomizing device 3 is installed on the fixing seat body 41. A guide ring 42 is provided around the outer periphery of the fixing seat body 41. The guide ring 42 is used to guide the airflow from the gap between the guide ring 42 and the atomizing device 3 into the air inlet 1111. The end of the guide ring 42 near the front mesh shell 11 is connected to the air inlet 1111.

[0036] In order to achieve high-efficiency operation of the fan, the airflow convergence channel 111 is provided with a through shaft between the fan blade 2 and the guide ring 42.

[0037] like Figure 2 and 4 As shown, a middle frame 13 is also provided between the front mesh shell 11 and the rear mesh shell 12. The front and back sides of the middle frame 13 are fixed to the back side of the front mesh shell 11 and the front side of the rear mesh shell 12, respectively. A connecting arm 43 is provided on the fixing body 41. The left and right ends of the fixing body 41 are fixed to the inner wall of the middle frame 13 through the connecting arm 43. A connecting channel 431 is provided in the connecting arm 43 for placing the wire connecting the atomizing device 3 and the water supply pipe.

[0038] like Figure 5-6As shown, an atomizing fan includes the aforementioned fan head. A U-shaped bracket 5 is provided at the bottom of the outer casing 1. The left and right ends of the U-shaped bracket 5 are respectively hinged to the left and right sides of the outer casing 1, allowing the fan head to swing around the hinged position, thereby adjusting the direction of the airflow. A base 6 for fixing the fan is provided at the bottom of the U-shaped bracket 5. A water tank 61 for storing water and a water pump 62 are provided inside the base 6. The two ends of the water pump 62 are connected to the atomizing device 3 and the water tank 61 respectively through conduits. A main board 7 for controlling the circuit and a battery 8 for power supply are also provided inside the base 6. The main board 7, battery 8, water pump 62 and atomizing device 3 are electrically connected.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fan head, comprising a housing (1), the housing (1) including a front mesh shell (11) and a rear mesh shell (12) through which airflow passes, the airflow entering the housing (1) through the rear mesh shell (12) and exiting through the front mesh shell (11), a fan blade (2) disposed inside the housing (1), an atomizing device (3) disposed between the fan blade (2) and the front mesh shell (11), the atomizing device (3) including a mist outlet (31), characterized in that, The front mesh shell (11) is provided with an airflow convergence channel (111). The airflow convergence channel (111) includes an air inlet (1111) on the back of the front mesh shell (11) and an air outlet (1112) on the front of the front mesh shell (11). The area through which the air inlet (1111) passes is larger than the area through which the air outlet (1112) passes. The position of the mist outlet (31) corresponds to that of the air inlet (1111). The outer diameter of the mist outlet (31) is smaller than that of the inner diameter of the air inlet (1111).

2. A fan head according to claim 1, characterized in that, The airflow convergence channel (111) is conical in shape and is located at the central axis inside the front mesh shell (11). The inner diameter of the air inlet (1111) is larger than the inner diameter of the air outlet (1112).

3. A fan head according to claim 1, characterized in that, The inner wall of the air inlet (1111) is provided with a number of guide grooves (11111).

4. A fan head according to claim 1, characterized in that, The front mesh shell (11) is conical in shape. The air inlet (1111) is located on the back end of the front mesh shell (11) with a larger cross-sectional area. Correspondingly, the air outlet (1112) is located on the front end of the front mesh shell (11) with a smaller cross-sectional area.

5. A fan head according to claim 1, characterized in that, The housing (1) is provided with a fixing seat (4), the fixing seat includes a fixing seat body (41), the atomizing device (3) is installed on the fixing seat body (41), the fixing seat body (41) is provided with a guide ring (42) around its outer periphery, the guide ring (42) is used to guide the airflow from the gap between the guide ring (42) and the atomizing device (3) into the air inlet (1111), and the end of the guide ring (42) near the front mesh shell (11) is connected to the air inlet (1111).

6. A fan head according to claim 5, characterized in that, The airflow convergence channel (111) is connected to the fan blade (2) and the guide ring (42) via a through shaft.

7. A fan head according to claim 5, characterized in that, A middle frame (13) is provided between the front mesh shell (11) and the rear mesh shell (12). The front and back sides of the middle frame (13) are fixed to the back side of the front mesh shell (11) and the front side of the rear mesh shell (12), respectively. A connecting arm (43) is provided on the main body (41) of the fixing base. The left and right ends of the main body (41) of the fixing base are fixed to the inner wall of the middle frame (13) through the connecting arm (43). A connecting channel (431) is provided in the connecting arm (43).

8. A misting fan, comprising the fan head as described in any one of claims 1-7, characterized in that, The bottom of the outer shell (1) is provided with a U-shaped bracket (5), the left and right ends of the U-shaped bracket (5) are respectively hinged to the left and right sides of the outer shell (1), and the bottom of the U-shaped bracket (5) is provided with a base (6).

9. A misting fan according to claim 8, characterized in that, The base is equipped with a water tank (61) for water storage and a water pump (62). The two ends of the water pump (62) are connected to the atomizing device (3) and the water tank (61) respectively through conduits.

10. A misting fan according to claim 9, characterized in that, The base (6) is also equipped with a main board (7) for controlling the circuit and a battery (8) for power supply. The main board (7), battery (8), water pump (62) and atomizing device (3) are electrically connected.

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