Fan head and fan

Abstract

The fan head comprises an outer shell and fan blades arranged in the outer shell, the outer shell comprises a front reticulated shell and a rear reticulated shell which are fixed to each other, a mounting base is arranged at the central axis of the front reticulated shell, a through hole is formed in the central axis of the mounting base in a penetrating mode, an atomization device is further arranged in the outer shell, and the atomization device is connected with the front reticulated shell and the rear reticulated shell. A hollow conical flow guide cover is arranged on the front face of the front reticulated shell and comprises an air inlet and an air outlet, the two ends of the air inlet and the two ends of the air outlet are communicated with each other, the inner diameter of the air inlet is larger than the inner diameter of the air outlet, the inner diameter of the air inlet is larger than the outer diameter of the installation base, and the outer diameter of the air outlet is larger than the outer diameter of the installation base. The air inlet is formed in the portion, on the periphery of the mounting base, of the front reticulated shell, and mixed gas is formed outside the air outlet of the conical flow guide cover, so that the situation that the mixed gas flows back to the front reticulated shell under the action of vortex, mist in mixed gas flow is condensed on the surface of the front reticulated shell, and the mist accumulates and drips is avoided.

Description

Technical Field

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

[0002] Existing fans with atomizing devices can quickly increase indoor humidity and lower temperature, making them popular among consumers. However, due to the high wind speed of the fan, there is negative pressure inside the outer casing, and eddies are easily generated outside the front grille to attract surrounding air, causing the mist to easily flow back to the front grille and accumulate and drip.

[0003] Chinese invention patent CN117628607A discloses a head assembly and fan. Although it can effectively reduce the vortex generated by the mixed airflow blown out near the edge of the front grille and flow back to the front grille, it still cannot completely solve the problem of condensation and dripping of mist in the mixed airflow on the surface of the front grille. Utility Model Content

[0004] This utility model provides a fan head and fan, which solves the problem that water easily condenses and drips from the surface of the existing fan front cover.

[0005] A fan head includes a housing and fan blades disposed within the housing. The housing includes a front mesh shell and a rear mesh shell fixed to each other. A mounting base is disposed at the central axis of the front mesh shell, and a through hole is formed through the central axis of the mounting base. An atomizing device is also disposed inside the housing, and the atomizing device has a mist outlet corresponding to the through hole. A hollow conical air guide is disposed on the front side of the front mesh shell. The conical air guide includes an air inlet and an air outlet that are interconnected at both ends. The inner diameter of the air inlet is larger than the inner diameter of the air outlet, and the inner diameter of the air inlet is larger than the outer diameter of the mounting base. The air inlet is disposed on the front mesh shell on the outer periphery of the mounting base. The fan blades are coaxially arranged with the front mesh shell and the conical air guide.

[0006] Furthermore, the front of the front grille is provided with an embedding groove, which is arranged around the front grille on the outer periphery of the mounting base, and the air inlet is detachably embedded in the embedding groove.

[0007] Furthermore, a guide ring is provided between the fan blade and the front grille, and the guide ring is coaxially arranged with the fan blade and the front grille. The inner diameter of the guide ring is larger than the outer diameter of the air inlet.

[0008] Furthermore, the atomizing device is disposed between the fan blade and the front grille, the atomizing device is coaxially disposed with the front grille, the mist outlet is disposed at the center of the front of the atomizing device, the end of the atomizing device near the mounting base is fixed to the back of the mounting base, and the mist outlet through hole is corresponding.

[0009] Furthermore, a fixing cap is provided inside the outer shell. The fixing cap is fixed to the end of the atomizing device away from the mounting base. The flow guide ring is arranged around the outer periphery of the fixing cap. The inner wall of the flow guide ring and the outer wall of the fixing cap are connected by a number of fixing arms. The fixing arms are coaxially arranged with the flow guide ring, the atomizing device and the front mesh shell.

[0010] Furthermore, the back of the front mesh shell is provided with a mounting groove, the right side of the mounting groove is connected to the mounting base, the left side of the fixing cap is provided with a mounting shell, the mounting shell extends outward through the guide ring, and the side of the mounting shell near the mounting groove is fixed in the mounting groove.

[0011] Furthermore, the inner diameter of the air outlet is larger than the inner diameter of the through hole.

[0012] A fan includes the aforementioned fan head. The bottom of the outer casing 1 is provided with an arc-shaped bracket, the left and right ends of which are respectively hinged to the left and right sides of the outer casing 1. The bottom of the arc-shaped bracket is provided with a base, and a water tank and a water pump are provided inside the base. The water pump is connected to an atomizing device and the water tank respectively through a conduit.

[0013] Furthermore, the base contains a motherboard and a battery, and the motherboard is electrically connected to the battery, water pump, and atomizing device.

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

[0015] 1. By creating a through hole at the central axis of the mounting base, the mist outlet of the atomizing device is aligned with the through hole. A conical guide hood is installed on the front of the mounting base to guide the airflow and mist through, so that the mixed gas is formed outside the outlet of the conical guide hood. This prevents the mixed gas from flowing back to the front mesh shell under the action of eddies, which would cause the mist in the mixed airflow to condense on the surface of the front mesh shell and accumulate and drip.

[0016] 2. By setting a guide ring, sufficient airflow can flow steadily and continuously through the guide shroud, making the formation of mixed airflow more stable.

[0017] 3. The product has a simple structure, is easy to install, and has a low production cost. 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 4This is a schematic diagram of the fixing cap and guide ring of this utility model.

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

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

[0024] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Front mesh shell; 111. Mounting base; 1111. Through hole; 112. Embedding groove; 113. Mounting groove; 12. Rear mesh shell; 13. Fixing cap; 131. Fixing arm; 132. Mounting shell; 2. Fan blade; 3. Atomizing device; 31. Mist outlet; 4. Conical guide shield; 41. Air inlet; 42. Air outlet; 5. Guide ring; 6. Arc-shaped bracket; 7. Base; 71. Water tank; 72. Water pump; 73. Main board; 74. 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 grille 11 and a rear grille 12 that allow airflow and are fixed to each other. A mounting base 111 is provided at the central axis of the front grille 11, and a through hole 1111 is provided through the central axis of the mounting base 111. A fan blade 2 is disposed inside the housing 1, and the fan blade 2 is coaxially arranged with the front grille 11. An atomizing device 3 is also disposed inside the housing 1, and the atomizing device 3 has a mist outlet 31. The mist outlet 31 corresponds to the through hole 1111. The front of the front mesh shell 11 is provided with a hollow conical guide shroud 4. The conical guide shroud 4 includes an air inlet 41 and an air outlet 42 that are connected to each other at both ends. The inner diameter of the air inlet 41 is larger than the inner diameter of the air outlet 42. The inner diameter of the air inlet 41 is larger than the outer diameter of the mounting base 111. The air inlet 41 is provided on the front mesh shell 11 on the outer periphery of the mounting base 111. The conical guide shroud 4 is coaxially arranged with the fan blade 2 and the front mesh shell 11.

[0029] In the prior art, an air outlet area is formed in front of the front grille 11, and the mounting base 111 will block part of the airflow from the front grille 11. As a result, a windless area will be formed in front of the mounting base 111. The air pressure in the windless area will be lower than that in the air outlet area. Therefore, the airflow in the air outlet area will flow towards the windless area under the action of the pressure difference. That is, the airflow blown out by the front grille 11 will flow obliquely towards the windless area. Since the wind speed in the air outlet area is high and there is negative pressure inside the outer shell 1, it is easy to absorb the surrounding air. Therefore, after the airflow blown out by the front grille 11 near the edge of the mounting base 111 forms a mixed airflow with the mist generated by the mixing atomizing device 3 and flows obliquely towards the windless area, it will generate a vortex under the action of negative pressure inside the outer shell 1, so as to flow back to the front grille 11. As a result, the mist in the mixed airflow will condense on the surface of the front grille 11 and accumulate and drip down.

[0030] In this embodiment, the fan blade 2 rotates, causing outside air to enter the outer casing 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. The mist generated by the atomizing device 3 exits through the mist outlet 31 and through the through hole 1111, mixing with the airflow blown out from the front mesh shell 11 to form a mixed airflow. Because the mixed airflow is formed outside the front mesh shell 11, it avoids condensation on the inner surface of the front mesh shell 11 after some of the mixed airflow comes into contact with it, preventing water from accumulating and dripping. Since the inner diameter of the air inlet 41 is larger than the outer diameter of the mounting base 111, the airflow from the front mesh shell... When the shell 11 is blown out, some airflow enters the conical guide shroud 4 from the air inlet 41. This part of the airflow will form a mixed gas with the mist discharged from the through hole 1111 and drive other mist to be discharged from the air outlet 42. It forms a mixed gas with other airflows outside the air outlet 42, which avoids the mixed gas flowing back to the front mesh shell 11 under the action of eddy current, causing the mist in the mixed airflow to condense on the surface of the front mesh shell 11 and accumulate and drip. In order to make the airflow and mist passing through the air outlet 42 smoother, the inner diameter of the air outlet 42 is larger than the inner diameter of the through hole 1111.

[0031] like Figure 3 As shown, the front grille 11 has an embedding groove 112 on its front side. The embedding groove 112 is arranged around the front grille 11 on the outer periphery of the mounting base 111. The air inlet 41 is detachably embedded in the embedding groove 112.

[0032] like Figure 2 As shown, in order to make the airflow into the air guide shroud 4 more sufficient, an air guide ring 5 is also provided between the fan blade 2 and the front mesh shell 11. The air guide ring 5 is coaxially arranged with the fan blade 2 and the front mesh shell 11. The inner diameter of the air guide ring 5 is larger than the outer diameter of the air inlet 41. By setting the air guide ring 5, sufficient airflow can flow stably into the air guide shroud 4.

[0033] like Figure 1-2 As shown, 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. The atomizing device 3 is disposed between the fan blade 2 and the front mesh shell 11. The atomizing device 3 and the front mesh shell 11 are coaxially arranged. The mist outlet 31 is located at the center of the front of the atomizing device 3. One end of the atomizing device 3 near the mounting base 111 is fixed to the back of the mounting base 111. The through hole 1111 of the mist outlet 31 corresponds to the through hole.

[0034] like Figure 2As shown, a fixing cap 13 is provided inside the outer shell 1. The fixing cap 13 is fixed to the end of the atomizing device 3 away from the mounting base 111. The guide ring 5 is arranged around the outer periphery of the fixing cap 13. The inner wall of the guide ring 5 and the outer wall of the fixing cap 13 are connected by a number of fixing arms 131. The fixing arms 131 are coaxially arranged with the guide ring 5, the atomizing device 3 and the front mesh shell 11.

[0035] like Figure 2 and 4 As shown, the front mesh shell 11 has a mounting groove 113 on its back. The right side of the mounting groove 113 is connected to the mounting base 111. The left side of the fixing cap 13 has a mounting shell 132. The mounting shell 132 extends outward through the guide ring 5. The side of the mounting shell 132 near the mounting groove 113 is fixed in the mounting groove 113. By setting the mounting groove 113 and the mounting shell 132, the guide ring 5 can be further guided. The wires connected to the atomizing device 3 and the water supply pipes can be set in the mounting groove 113, making the overall appearance more beautiful.

[0036] 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.

[0037] like Figure 5-6 As shown, a fan includes the aforementioned fan head. An arc-shaped bracket 6 is provided at the bottom of the outer casing 1. The left and right ends of the arc-shaped bracket 6 are respectively hinged to the left and right sides of the outer casing 1, so that the fan head can swing around the hinge position, thereby adjusting the airflow direction. A base 7 is provided at the bottom of the arc-shaped bracket 6. A water tank 71 and a water pump 72 are provided inside the base 7. The water pump 72 is connected to the atomizing device 3 and the water tank 71 respectively through a conduit.

[0038] like Figure 6 As shown, the base 7 is equipped with a main board 73 and a battery 74. The main board 73 is electrically connected to the battery 74, the water pump 72 and the atomizing device 3, which facilitates user control of the fan.

[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) and a fan blade (2) arranged in the housing (1), the housing (1) comprising a front mesh housing (11) and a rear mesh housing (12) fixed to each other, characterized in that, The front mesh shell (11) is provided with a mounting seat (111) at the central axis, a through hole (1111) is formed through the mounting seat (111) at the central axis, an atomizing device (3) is further arranged in the shell (1), the atomizing device (3) is provided with a mist outlet (31), the mist outlet (31) corresponds to the through hole (1111), the front mesh shell (11) is provided with a hollow conical flow guide cover (4) on the front surface, the conical flow guide cover (4) comprises an air inlet (41) and an air outlet (42) which are communicated with each other at two ends, the inner diameter of the air inlet (41) is greater than the inner diameter of the air outlet (42), the inner diameter of the air inlet (41) is greater than the outer diameter of the mounting seat (111), the air inlet (41) is arranged on the front mesh shell (11) outside the mounting seat (111), and the fan blade (2) is coaxially arranged with the front mesh shell (11) and the conical flow guide cover (4).

2. A fan head according to claim 1, characterised in that The front mesh shell (11) is provided with an embedding groove (112) on the front surface, the embedding groove (112) is arranged on the front mesh shell (11) outside the mounting seat (111), and the air inlet (41) is detachably embedded in the embedding groove (112).

3. A fan head according to claim 1, wherein The fan blade (2) and the front mesh shell (11) are further provided with a flow guide ring (5), the flow guide ring (5) is coaxially arranged between the fan blade (2) and the front mesh shell (11), and the inner diameter of the flow guide ring (5) is greater than the outer diameter of the air inlet (41).

4. A fan head according to claim 3, wherein, The atomizing device (3) is arranged between the fan blade (2) and the front mesh shell (11), the atomizing device (3) is coaxially arranged with the front mesh shell (11), the mist outlet (31) is arranged at the center of the front surface of the atomizing device (3), one end of the atomizing device (3) close to the mounting seat (111) is fixed to the back surface of the mounting seat (111), and the mist outlet (31) corresponds to the through hole (1111).

5. A fan head according to claim 4, wherein, The shell (1) is provided with a fixing cap (13), the fixing cap (13) is fixed to one end of the atomizing device (3) away from the mounting seat (111), the flow guide ring (5) is arranged outside the fixing cap (13), the inner wall of the flow guide ring (5) and the outer wall of the fixing cap (13) are connected through a plurality of fixing arms (131), and the fixing arms (131) are coaxially arranged between the flow guide ring (5), the atomizing device (3) and the front mesh shell (11).

6. A fan head according to claim 5, wherein, The front mesh shell (11) is provided with a mounting groove (113) on the back surface, the mounting groove (113) is connected to the mounting seat (111) on the right side, the fixing cap (13) is provided with a mounting shell (132) on the left side, the mounting shell (132) extends outwardly through the flow guide ring (5), and one side of the mounting shell (132) close to the mounting groove (113) is fixed in the mounting groove (113).

7. A fan head according to claim 1, wherein The inner diameter of the air outlet (42) is greater than the inner diameter of the through hole (1111).

8. A fan comprising the fan head of any one of claims 1-7, characterized in that, The bottom of the shell (1) is provided with an arc-shaped support (6), the left and right ends of the arc-shaped support (6) are respectively hinged to the left and right sides of the shell (1), the bottom of the arc-shaped support (6) is provided with a base (7), the base (7) is provided with a water tank (71) and a water pump (72), the water pump (72) is connected with the atomizing device (3) and the water tank (71) through a conduit respectively.

9. A fan as claimed in claim 8, wherein The base (7) is provided with a main board (73) and a battery (74), and the main board (73) is electrically connected with the battery (74), the water pump (72) and the atomizing device (3).

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