Fan

Abstract

The utility model provides a fan which comprises a fan head, the fan head comprises a front shell, a rear shell connected with the front shell to form a containing cavity and fan blades rotationally arranged in the containing cavity, an air inlet hole is formed in the rear shell, and a plurality of air outlet holes communicated with the containing cavity are formed in the position, close to the peripheral side, of the surface of the front shell in a surrounding mode. The front shell is provided with a first middle body in the middle of the multiple air outlet holes. As the circle of air outlet holes are formed in the position, close to the peripheral side, of the front shell, when the fan blades rotate, airflow generated by rotation of the fan blades can be effectively guided out of the air outlet holes, the distribution area of the air outlet holes can be effectively reduced, the space for children to make contact with the fan blades is reduced, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a fan. Background Art

[0002] The fan is blown out from the front shell. The existing front shell has mesh holes in the entire front mesh cover from the middle to the outside, and the mesh area is large. When the fan is in use, especially when children use it, the children are curious and the front mesh cover is facing the human body. It is easy for them to insert fingers or other objects into the fan through the mesh holes of the front mesh cover to test the rotating blades inside the fan, which can easily cause injuries to children and has low safety. Utility Model Content

[0003] In order to solve the defects and shortcomings of the prior art, the utility model provides a fan for solving the problem that the front mesh cover of the prior fan is all mesh holes, resulting in low safety.

[0004] The technical solution adopted by the utility model is: a fan, including a fan head, the fan head including a front shell, a rear shell connected to the front shell to form a cavity, and fan blades rotatably arranged in the cavity, the rear shell is provided with an air inlet hole, the surface of the front shell is surrounded by a plurality of air outlet holes connected to the cavity at positions close to the peripheral side, and the front shell is provided with a first intermediate body in the middle of the plurality of air outlet holes.

[0005] Furthermore, the width of the air outlet gradually decreases in the direction away from the fan blades.

[0006] Furthermore, the fan blade includes a second intermediate body and blades arranged around the outer side wall of the second intermediate body, and the width of the outer side wall of the second intermediate body gradually increases in a direction approaching the front shell.

[0007] Furthermore, the front shell includes a plurality of partitions and an outer ring, the first intermediate body is located in the middle of the outer ring, an annular hole is formed between the outer ring and the first intermediate body, and the width of the annular hole gradually decreases in the direction away from the fan blade;

[0008] A plurality of partitions are arranged in the ring hole to form air outlet holes, and two ends of the partitions are respectively connected to the outer ring and the first intermediate body.

[0009] Furthermore, the outer side wall of the second intermediate body is a first arc surface, the outer side wall of the first intermediate body is a first inclined surface, and the first inclined surface is on a tangent line of the first arc surface close to the front shell.

[0010] Furthermore, the first intermediate body is provided with a mounting groove for function iteration on a surface away from the fan blades.

[0011] Furthermore, the second intermediate body has a first opening on a side close to the front shell, an installation cavity is provided in the middle of the second intermediate body, an installation shaft is formed in the middle of the first intermediate body, a motor is provided on the installation shaft, the motor is at least partially provided in the installation cavity, and the shaft of the motor is connected to the second intermediate body.

[0012] Furthermore, a surrounding wall is formed in the second intermediate body, the installation cavity is formed by surrounding the surrounding wall, and a plurality of reinforcing ribs are arranged between the surrounding wall and the inner side wall of the second intermediate body.

[0013] Furthermore, an iterative functional component is arranged in the installation groove, and the iterative functional component is one or more of a circuit board, a battery box, an aromatherapy box, a humidifier, a Bluetooth speaker, and a lighting lamp.

[0014] Furthermore, a wiring hole is provided on the bottom surface of the installation groove, and the iterative functional component is a circuit board. The circuit board is electrically connected to the motor through wires, and the wires pass through the wiring hole.

[0015] Beneficial effects of the utility model: Compared with the prior art, the utility model provides a circle of air outlet holes near the peripheral side of the front shell, so that when the fan blades rotate, the airflow generated by the rotation of the fan blades can be effectively discharged from the air outlet holes, and the distribution area of ​​the air outlet holes can be effectively reduced, reducing the space for children to contact the fan blades and improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0017] Figure 2 It is a three-dimensional diagram from another perspective of an embodiment of the utility model.

[0018] Figure 3 It is an exploded view of an embodiment of the utility model.

[0019] Figure 4 This is a structural diagram of the front shell of an embodiment of the utility model.

[0020] Figure 5 This is a schematic diagram of the fan blades installed on the front shell of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the present embodiment of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model.

[0022] Please refer to the attached Figure 1-5, a fan in an embodiment of the utility model.

[0023] The fan includes a fan head, which includes a front shell 1, a rear shell 2 connected to the front shell 1 to form a cavity, and fan blades 4 rotatably arranged in the cavity, an air inlet 21 is opened on the rear shell 2, and a surface of the front shell 1 is surrounded by a plurality of air outlet holes 16 connected to the cavity near the peripheral side, and the front shell 1 is provided with a first intermediate body 13 in the middle of the plurality of air outlet holes 16.

[0024] As is known to all, when the blades 4 in the fan rotate, most of the airflow generated by the blades 4 diffuses outward from the peripheral sides of the blades 42 of the blades 4, while the airflow in the middle is small.

[0025] The utility model provides a circle of air outlet holes 16 near the peripheral side of the front shell 1, so that when the fan blades 4 rotate, the airflow generated by the rotation of the fan blades 4 can be effectively guided out from the air outlet holes 16, and the distribution area of ​​the air outlet holes 16 can be effectively reduced, reducing the space for children to contact the fan blades 4, thereby improving safety performance.

[0026] Specifically, in one embodiment, the width of the air outlet 16 gradually decreases in a direction away from the fan blade 4. In this way, the wind can be effectively guided out of the air outlet 16, and the size of the air outlet 16 can be minimized.

[0027] In one embodiment, the fan blade 4 includes a second intermediate body 41 and a blade 42 disposed around the outer wall of the second intermediate body 41. The width of the outer wall of the second intermediate body 41 gradually increases in the direction close to the front shell 1, so that the area of ​​the blade 42 cutting the wind can be reduced, and the ineffective wind volume can be reduced, thereby being safer and energy-saving. In addition, the width of the outer wall of the second intermediate body 41 gradually increases in the direction close to the front shell 1, so that the cross-sectional area of ​​the blade 42 gradually increases along the thickness of the second intermediate body 41, and the generated airflow is gathered to the outside of the second intermediate body 41, so that the wind force is greatly increased, so as to effectively dissipate heat for the user.

[0028] Specifically, in the above embodiment, for the stability of the front shell 1 structure, the front shell 1 includes a plurality of baffles 12 and an outer ring 11, the first intermediate body 13 is located in the middle of the outer ring 11, and an annular ring hole is formed between the outer ring 11 and the first intermediate body 13, and the width of the ring hole gradually decreases in the direction away from the fan blade 4. A plurality of baffles 12 are arranged around the ring hole and form an air outlet 16, and the two ends of the baffles 12 are connected to the outer ring 11 and the first intermediate body 13 respectively.

[0029] In one embodiment, the outer wall of the second intermediate body 41 is a first arc surface, and the outer wall of the first intermediate body 13 is a first inclined surface, and the first inclined surface is on a tangent line of the first arc surface close to the front shell 1. With the structure of the fan blade 4, the airflow generated when the fan blade 4 rotates can be guided out from the air outlet 16, thereby improving the wind force of the air outlet.

[0030] In other embodiments, at least a portion of the outer wall of the first intermediate body 13 may be a curved surface, and at least a portion of the inner wall of the outer ring 11 may be a slope or a curved surface.

[0031] In one embodiment, a mounting groove 14 for function iteration is formed on a surface of the first intermediate body 13 away from the fan blades 4 to improve the functionality of the fan.

[0032] Specifically, an iterative functional component (not shown in the figure) is arranged in the installation groove 14, and the iterative functional component can be a circuit board, a battery box, an aromatherapy box, a humidifier, a Bluetooth speaker, a lighting lamp, etc.

[0033] In one embodiment, the second intermediate body 41 has a first opening on one side close to the front shell 1, and a mounting cavity 44 is provided in the middle of the second intermediate body 41. A mounting shaft 17 is formed in the middle of the first intermediate body 13, and a motor 3 is provided on the mounting shaft 17. The motor 3 is at least partially provided in the mounting cavity 44. The shaft of the motor 3 is connected to the second intermediate body 41, and the motor 3 can drive the fan blades 4 to rotate when rotating. The motor 3 is installed between the front shell 1 and the fan blades 4, which can effectively utilize the space and make the fan head compact, so that when the fan of the utility model is used in a portable fan, the fan volume can be maintained under the state of effective air discharge.

[0034] In one embodiment, a surrounding wall 43 is formed in the second intermediate body 41 , and the installation cavity 44 is formed by surrounding the surrounding wall 43 . A plurality of reinforcing ribs 45 are provided between the surrounding wall 43 and the inner wall of the second intermediate body 41 to improve the structural stability of the fan blade 4 .

[0035] In one embodiment, a wiring hole 15 is provided on the bottom surface of the mounting groove 14, and the iterative functional part is a circuit board. The circuit board is electrically connected to the motor 3 through wires, and the wires pass through the wiring hole 15 to drive the motor 3 to work through the circuit board, so that the volume of the fan can be minimized and can be more convenient to carry for daily use by users. Of course, control buttons can also be set on the circuit board, and the working state or speed of the motor 3 can be controlled by the control buttons.

[0036] The above embodiments of the utility model are merely examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. However, obvious changes or modifications derived from the essence of the utility model still fall within the protection scope of the utility model.

Claims

1. A fan, characterized in that: The fan head comprises a front shell, a rear shell connected to the front shell to form a cavity, and a fan blade rotatably arranged in the cavity, an air inlet hole is opened on the rear shell, a plurality of air outlet holes connected to the cavity are arranged around the surface of the front shell near the peripheral side, and a first intermediate body is arranged in the middle of the plurality of air outlet holes on the front shell; The width of the air outlet gradually decreases in a direction away from the fan blades.

2. The fan according to claim 1, characterized in that The fan blade includes a second intermediate body and blades arranged around the outer side wall of the second intermediate body, and the width of the outer side wall of the second intermediate body gradually increases in a direction approaching the front shell.

3. The fan according to claim 2, characterized in that: The front shell includes a plurality of partitions and an outer ring, the first intermediate body is located in the middle of the outer ring, an annular hole is formed between the outer ring and the first intermediate body, and the width of the annular hole gradually decreases in the direction away from the fan blades; A plurality of partitions are arranged in the ring hole to form air outlet holes, and two ends of the partitions are respectively connected to the outer ring and the first intermediate body.

4. The fan according to claim 3, characterized in that: The outer side wall of the second intermediate body is a first arc surface, the outer side wall of the first intermediate body is a first inclined surface, and the first inclined surface is on a tangent line of the first arc surface close to the front shell.

5. The fan according to claim 3, characterized in that: The first intermediate body is provided with a mounting groove for functional iteration on a surface away from the fan blades.

6. The fan according to claim 5, characterized in that: The second intermediate body has a first opening on one side close to the front shell, an installation cavity is provided in the middle of the second intermediate body, an installation shaft is formed in the middle of the first intermediate body, a motor is provided on the installation shaft, the motor is at least partially provided in the installation cavity, and the shaft of the motor is connected to the second intermediate body.

7. The fan according to claim 6, characterized in that: A surrounding wall is formed in the second intermediate body, and the installation cavity is formed by surrounding the surrounding wall. A plurality of reinforcing ribs are arranged between the surrounding wall and the inner side wall of the second intermediate body.

8. The fan according to claim 7, characterized in that: An iterative functional part is arranged in the installation groove, and the iterative functional part is one or more of a circuit board, a battery box, an aromatherapy box, a humidifier, a Bluetooth speaker, and a lighting lamp.

9. The fan according to claim 8, characterized in that A wiring hole is provided on the bottom surface of the mounting groove, and the iterative functional component is a circuit board. The circuit board is electrically connected to the motor through wires, and the wires pass through the wiring hole.

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