Fan with integral air duct device

Abstract

The utility model relates to a fan with an integral air duct device, which comprises a fan head and a support for supporting the fan head, the fan head comprises a fan shell and an inner barrel sleeved on the inner side wall of the fan shell, and a fan motor, fan blades, a protective cover and a plurality of air guide rib plates are respectively arranged in the inner barrel. The integral air channel comprises a ventilation channel between the inner barrel and the protective cover, the fan motor is arranged in the protective cover, an output shaft of the fan motor extends out of the protective cover in the direction of the air inlet end, the fan blades are located outside the protective cover and installed on the output shaft, and the lower end of the protective cover is connected with the inner side wall of the inner barrel. And the plurality of air guide rib plates are connected between the protective cover and the inner cylinder body. The integral air duct is simple in structure and good in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric fans, and particularly relates to a fan with an integrated air duct device. Background Art

[0002] The air duct is a gas confinement cavity and a necessary structure of the fan, which affects the blowing performance and effect of the fan. Existing fans are often composed of multiple parts, with complex structures and poor stability. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fan with an integrated air duct device, the air duct has a simple structure and good stability.

[0004] The utility model is implemented in this way, providing a fan with an integrated air duct device, including a fan head and a support for supporting the fan head, wherein an air inlet end and an air outlet end of the fan are respectively arranged at two ends of the fan head, the fan head includes a fan casing and an inner cylinder, the inner cylinder is sleeved on the inner side wall of the fan casing, a fan motor, fan blades, a protective cover and a plurality of air guide ribs are respectively arranged in the inner cylinder, the integrated air duct includes a ventilation channel between the inner cylinder and the protective cover, an isolation chamber is arranged in the protective cover, the isolation chamber and the integrated air duct are isolated from each other, the fan motor is arranged in the isolation chamber, the output shaft of the fan motor extends to the outside of the protective cover along the air inlet end direction, the fan blades are located outside the protective cover and are mounted on the output shaft, the lower end of the protective cover is connected to the inner side wall of the inner cylinder, a plurality of air guide ribs are connected between the protective cover and the inner cylinder, and a connecting component connected to the support is also arranged in the isolation chamber.

[0005] Furthermore, the inner cylinder includes a first cylinder and a second cylinder, the protective cover includes a first protective cover and a second protective cover, and the isolation chamber includes a first isolation chamber located at the first protective cover and a second isolation chamber located at the second protective cover, wherein the first cylinder is fixedly connected to the first protective cover, the second cylinder is fixedly connected to the second protective cover, a part of the wind guide ribs is connected between the first cylinder and the first protective cover, and another part of the wind guide ribs is connected between the second cylinder and the second protective cover, the outer wall of the second cylinder is attached to the inner wall of the first cylinder, the second protective cover is fixed to the air inlet side of the first protective cover by connecting screws, and the fan motor is installed in the second isolation chamber.

[0006] Furthermore, a plurality of axial grooves are arranged on the outer wall of the second cylinder, an axial rib cooperating with the axial grooves is arranged on the inner wall of the first cylinder, a screw hole is arranged in the axial rib, a blade cover is arranged on the air inlet side of the first cylinder, and the fan blades are located in the blade cover.

[0007] Furthermore, a through hole corresponding to the screw hole is arranged on the fan blade cover, and a fan blade cover screw is arranged in the through hole to fix the fan blade cover and the first cylinder together.

[0008] Furthermore, a heating wire is arranged in the inner cylinder, and the heating wire is arranged in the middle part of the integral air duct.

[0009] Furthermore, a plurality of front protrusions are arranged on the inner wall of the air outlet side of the fan housing, a front baffle ring is arranged on the air outlet side of the fan housing, and a plurality of front limiting grooves are arranged on the side wall of the front baffle ring. The front limiting grooves are arranged corresponding to the front protrusions, and the relative front protrusions are inserted into the front limiting grooves and then rotated to form a snap-fit ​​connection with the front limiting grooves.

[0010] Furthermore, a plurality of rear protrusions are arranged on the inner wall of the air inlet side of the fan housing, a rear end cover is arranged on the air inlet side of the fan housing, a ventilation grille is arranged on the end face of the rear end cover, and a plurality of rear limiting grooves are arranged on the side wall of the rear end cover. The rear limiting grooves are arranged corresponding to the rear protrusions, and the relative rear protrusions are inserted into the rear limiting grooves and then rotated to form a snap-fit ​​connection with the rear protrusions.

[0011] Furthermore, the fan also includes a purification component, which is arranged at the air inlet end of the fan head and located at the air inlet side of the rear end cover.

[0012] Compared with the prior art, the utility model has a fan with an integrated air duct device, including a fan head and a support supporting the fan head, the fan head including a fan housing and an inner cylinder sleeved on the inner side wall of the fan housing, a fan motor, a fan blade, a protective cover and a plurality of air guide ribs are respectively arranged in the inner cylinder, the integrated air duct includes a ventilation channel between the inner cylinder and the protective cover, the fan motor is arranged in the protective cover, and its output shaft extends to the outside of the protective cover along the air inlet end direction, the fan blade is located outside the protective cover and installed on the output shaft, the lower end of the protective cover is connected to the inner side wall of the inner cylinder, and a plurality of air guide ribs are connected between the protective cover and the inner cylinder. The integrated air duct of the utility model has a simple structure and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of a fan with an integrated air duct device of the utility model;

[0014] Figure 2 for Figure 1 A three-dimensional schematic diagram of the exploded state of the central purification component, the fan head, and the support fan head;

[0015] Figure 3 for Figure 1 Schematic diagram of the decomposition of

[0016] Figure 4 for Figure 3A three-dimensional schematic diagram from another angle;

[0017] Figure 5 for Figure 3 A three-dimensional schematic diagram of the first cylinder.

[0018] In the figure: 1 - fan head, 101 - air inlet end, 102 - air outlet end; 2 - support; 3 - purification component; 4 - fan casing, 41 - front protrusion, 42 - rear protrusion; 5 - inner cylinder, 51 - first cylinder, 52 - second cylinder, 53 - axial groove, 54 - axial rib; 6 - fan motor; 7 - fan blades; 8 - protective cover, 81 - first protective cover, 82 - second protective cover; 9 - integrated air duct; 10 - air guide ribs; 11 - ventilation fence; 12 - isolation chamber; 13 - connecting component; 14 - protective cover; 15 - fan blade cover; 16 - retaining ring, 161 - front limit groove; 17 - rear end cover, 171 - rear limit groove. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Please also refer to Figures 1 to 5 As shown, a preferred embodiment of the utility model is a fan with an integrated air duct device, including a fan head 1, a support 2 for supporting the fan head 1 and a purification component 3, wherein an air inlet end 101 and an air outlet end 102 of the fan are respectively arranged at both ends of the fan head 1, and the purification component 3 is arranged at the air inlet end 101 of the fan head 1.

[0021] The fan head 1 includes a fan housing 4 and an inner cylinder 5, and the inner cylinder 5 is sleeved on the inner side wall of the fan housing 4. A fan motor 6, a fan blade 7, a protective cover 8, a heating wire (not shown in the figure) and a plurality of wind guide ribs 10 are respectively arranged in the inner cylinder 5. The integrated air duct 9 includes a ventilation channel between the inner cylinder 5 and the protective cover 8. The heating wire is arranged in the middle part of the integrated air duct 9.

[0022] The external wind flow at the air inlet end 101 is sucked into the integrated air duct 9 by the rotating fan blades 7, and the wind flow is heated into hot wind after passing through the heating wire, and the hot wind flow flows out of the fan head 1 from the air outlet end 102. The purification component 3 purifies the wind flow entering the integrated air duct 9.

[0023] An isolation chamber 12 is provided in the protective cover 8, and the isolation chamber 12 is isolated from the integral air duct 9. The fan motor 6 is provided in the isolation chamber 12, and its output shaft extends outside the protective cover 8 along the air inlet end 101. The fan blade 7 is located outside the protective cover 8 and mounted on the output shaft. The lower end of the protective cover 8 is connected to the inner wall of the inner cylinder 5, and a plurality of air guide ribs 10 are connected between the protective cover 8 and the inner cylinder 5. A connection assembly 13 connected to the support 2 and an electric control panel (not shown in the figure) for controlling the fan are also provided in the isolation chamber 12.

[0024] The inner cylinder 5 includes a first cylinder 51 and a second cylinder 52, the protective cover 8 includes a first protective cover 81 and a second protective cover 82, and the isolation chamber 12 includes a first isolation chamber 121 located at the first protective cover 81 and a second isolation chamber 122 located at the second protective cover 82, wherein the first cylinder 51 and the first protective cover 81 are fixedly connected together, and the second cylinder 52 and the second protective cover 82 are fixedly connected together.

[0025] A portion of the air guide ribs 10 is connected between the first cylinder 51 and the first protective cover 81, and another portion of the air guide ribs 10 is connected between the second cylinder 52 and the second protective cover 82. The outer wall of the second cylinder 52 is attached to the inner wall of the first cylinder 51, and the second protective cover 82 is fixed to the air inlet side of the first protective cover 81 by connecting screws (not shown in the figure). The fan motor 6 is installed in the second isolation chamber 122. The electric control board for operating the fan is arranged in the first isolation chamber 121. A protective cover 14 is arranged on the air outlet side of the first isolation chamber 121, and the protective cover 14 closes the air outlet side of the isolation chamber 121.

[0026] A plurality of axial grooves 53 are arranged on the outer wall of the second cylinder 52, an axial protruding rib 54 cooperating with the axial grooves is arranged on the inner wall of the first cylinder 51, a screw hole is arranged in the axial protruding rib 54, a blade cover 15 is arranged on the air inlet side of the first cylinder 51, and the fan blade 7 is located in the blade cover 15.

[0027] A through hole corresponding to the screw hole is provided on the blade cover 15 , and a blade cover screw (not shown in the figure) is provided in the through hole to fix the blade cover 15 and the first cylinder 51 together.

[0028] A plurality of front protrusions 41 are arranged on the inner wall of the air outlet side of the fan housing 4, and a front baffle ring 16 is arranged on the air outlet side of the fan housing 4. A plurality of front limiting grooves 161 are arranged on the side wall of the front baffle ring 16, and the front limiting grooves 161 are arranged corresponding to the front protrusions 41. The front protrusions 41 are inserted into the front limiting grooves 161 and then rotated to form a buckling connection with the front limiting grooves 161.

[0029] A plurality of rear protrusions 42 are arranged on the inner wall of the air inlet side of the fan housing 4, a rear end cover 17 is arranged on the air inlet side of the fan housing 4, and a ventilation grille 11 is arranged on the end surface of the rear end cover 17. A plurality of rear limiting grooves 171 are arranged on the side wall of the rear end cover 17, and the rear limiting grooves 171 are arranged corresponding to the rear protrusions 42. The rear protrusions 42 are inserted into the rear limiting grooves 171 and then rotated to form a buckle connection with the rear protrusions 42.

[0030] Therefore, the integrated air duct structure of the utility model is simple and has good stability.

[0031] The purification component 3 is located at the air inlet side of the rear end cover 17 to purify the airflow entering the air inlet end 101 .

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan with an integrated air duct device, comprising a fan head and a support for supporting the fan head, wherein an air inlet end and an air outlet end of the fan are respectively arranged at two ends of the fan head, wherein: The fan head includes a fan casing and an inner cylinder, the inner cylinder is sleeved on the inner side wall of the fan casing, and a fan motor, fan blades, a protective cover and a plurality of wind guide ribs are respectively arranged in the inner cylinder, the integral air duct includes a ventilation channel between the inner cylinder and the protective cover, an isolation cavity is arranged in the protective cover, the isolation cavity and the integral air duct are isolated from each other, the fan motor is arranged in the isolation cavity, and its output shaft extends to the outside of the protective cover along the air inlet end direction, the fan blades are located outside the protective cover and are installed on the output shaft, the lower end of the protective cover is connected to the inner side wall of the inner cylinder, a plurality of wind guide ribs are connected between the protective cover and the inner cylinder, and a connecting component connected to the support is also arranged in the isolation cavity.

2. The fan with an integrated air duct device according to claim 1, characterized in that: The inner cylinder includes a first cylinder and a second cylinder, the protective cover includes a first protective cover and a second protective cover, and the isolation chamber includes a first isolation chamber located at the first protective cover and a second isolation chamber located at the second protective cover, wherein the first cylinder is fixedly connected to the first protective cover, the second cylinder is fixedly connected to the second protective cover, a part of the wind guide ribs is connected between the first cylinder and the first protective cover, and another part of the wind guide ribs is connected between the second cylinder and the second protective cover, the outer wall of the second cylinder is attached to the inner wall of the first cylinder, the second protective cover is fixed to the air inlet side of the first protective cover by connecting screws, and the fan motor is installed in the second isolation chamber.

3. The fan with an integrated air duct device according to claim 2, characterized in that: A plurality of axial grooves are arranged on the outer wall of the second cylinder, an axial rib cooperating with the axial grooves is arranged on the inner wall of the first cylinder, screw holes are arranged in the axial ribs, a blade cover is arranged on the air inlet side of the first cylinder, and the blades are located in the blade cover.

4. The fan with an integrated air duct device according to claim 3, characterized in that: A through hole corresponding to the screw hole is arranged on the fan blade cover, and a fan blade cover screw is arranged in the through hole to fix the fan blade cover and the first cylinder together.

5. The fan with an integrated air duct device according to claim 1, characterized in that: A heating wire is also arranged in the inner cylinder, and the heating wire is arranged in the middle part of the integral air duct.

6. The fan with an integrated air duct device according to claim 1, characterized in that: A plurality of front protrusions are arranged on the inner wall of the air outlet side of the fan housing, a front baffle ring is arranged on the air outlet side of the fan housing, and a plurality of front limiting grooves are arranged on the side wall of the front baffle ring. The front limiting grooves are arranged corresponding to the front protrusions. The relative front protrusions are inserted into the front limiting grooves and then rotated to form a snap-fit ​​connection with the front limiting grooves.

7. The fan with an integrated air duct device according to claim 1, characterized in that: A plurality of rear protrusions are arranged on the inner wall of the air inlet side of the fan housing, a rear end cover is arranged on the air inlet side of the fan housing, a ventilation grille is arranged on the end surface of the rear end cover, and a plurality of rear limiting grooves are arranged on the side wall of the rear end cover. The rear limiting grooves are arranged corresponding to the rear protrusions, and the relative rear protrusions are inserted into the rear limiting grooves and then rotated to form a snap-fit ​​connection with the rear protrusions.

8. The fan with an integrated air duct device according to claim 7, characterized in that: The fan further comprises a purification component, which is arranged at the air inlet end of the fan head and located at the air inlet side of the rear end cover.

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