Fan assembly

Abstract

The fan assembly is a fan base and comprises a fan chassis, a base housing, a supporting part and a built-in fan, the fan chassis is provided with an air inlet allowing external air to enter, the supporting part is arranged on the fan chassis and located in the base housing, the supporting part is provided with a supporting protrusion, and the fan base is provided with an air inlet and an air outlet. The built-in fan is fixed to the supporting protrusion, a gap space is formed between the built-in fan and the supporting component, and an opening corresponding to an outlet of the built-in fan is formed in the top of the base housing. The fan assembly is reasonable in structural design, the annular supporting part allowing airflow to pass through is arranged at the inner bottom of the fan base, the supporting protrusions are arranged on the annular supporting part, the fan assembly is supported and fixed through the supporting protrusions, the structure is stable and reliable, the fan assembly is not prone to loosening after being used for a long time, and noise changes of a fan used in the later period are relatively small.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to a fan base assembly. Background Art

[0002] Compared with traditional fan air supply devices, the impeller of a bladeless fan is set inside the base, and the impeller is not visible from the outside, which prevents the possibility of human contact with the rotating impeller and is safe and reliable. The bladeless fan includes a base and an air outlet ring on the top. The fan is fixed in the base, and a group of air inlets for external air to enter are provided on the side of the base cylinder, which affects the appearance of the product. The existing fan fixing structure occupies a relatively large internal space, affecting the air intake effect. The fan assembly is fixed by a positioning structure set on the top of the base cylinder, and the positioning reliability is relatively poor. After long-term use, the fan assembly makes relatively loud noises, affecting the use effect.

[0003] For example, patent CN211852220U discloses a fan assembly, which includes an air outlet structure, a base, and a fan assembly for generating air flow; a cylindrical shell is provided below the air outlet structure, and the fan assembly inside the cylindrical shell is fixed to the top of the base cylindrical shell by fasteners; the positioning reliability is relatively poor, and the fan assembly makes relatively loud noise after long-term use, affecting the use effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a fan assembly to achieve the purpose of reducing the change in fan noise during long-term use.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The fan assembly is a fan base, which includes a fan chassis, a base cover, a supporting component and a built-in fan. The fan chassis is provided with an air inlet for external air to enter, the supporting component is arranged on the fan chassis and located in the base cover, the supporting component is provided with a supporting protrusion, the built-in fan is fixed on the supporting protrusion, there is a gap space between the built-in fan and the supporting component, and the top of the base cover is provided with an opening corresponding to the built-in fan outlet.

[0007] Further or preferred:

[0008] The fan chassis is an inverted cone-shaped structure, and the air inlet is arranged on the cone surface to form an inclined air inlet.

[0009] The supporting component is rotatably arranged on the fan chassis, and the base cover and the supporting component are connected via a detachable structure.

[0010] A fan button is provided on the base cover, a connecting pillar is provided on the inner wall of the base cover, and the inner side of the fan button is connected to the connecting pillar.

[0011] The support component is an annular support component, the edge of the annular support component is provided with a docking groove, and the bottom inner wall of the base cover shell is provided with a connecting lug, which is docked and connected to the docking groove.

[0012] The edge of the support component is an annular support ring, and the support ring is provided with through holes for upward and downward ventilation.

[0013] The supporting protrusions form a group, and a group of supporting protrusions are circumferentially spaced apart on the edge of the annular supporting component.

[0014] A fan support plate is fixed on the top of the group of supporting protrusions, the center of the fan support plate is a hollow structure, the built-in fan is fixed on the fan support plate, and the lower end inlet of the built-in fan extends out from the hollow structure of the fan support plate.

[0015] The group of supporting protrusions and the annular supporting component are an integrated structure, and the top end of the supporting protrusion is provided with a positioning column for docking with the fan support plate.

[0016] A fan cover is fixed on the fan support plate, and the built-in fan is located in the fan cover.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The fan assembly has a reasonable structural design. An annular support component is set at the inner bottom of the fan base to allow airflow to pass through. A supporting protrusion is provided on the annular support component. The fan assembly is supported and fixed by the supporting protrusion. The structure is stable and reliable. It is not easy to loosen after long-term use, and the fan noise changes relatively little during later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 Schematic diagram of the fan assembly structure of the present invention Figure 1 .

[0021] Figure 2 Schematic diagram of the fan assembly structure of the present invention Figure 2 .

[0022] Figure 3 Schematic diagram of the fan assembly structure of the present invention Figure 3 .

[0023] Figure 4 for Figure 1 Schematic diagram of the structure without the base cover.

[0024] Figure 5 This is a schematic structural diagram of the support component of the present invention.

[0025] Figure 6This is a schematic diagram of the interior of the base cover of the present invention.

[0026] In the picture:

[0027] 1. Fan base, 101. Base cover, 102. Connecting ears, 103. Connecting pillars, 2. Fan chassis, 201. Air inlet, 3. Fan button, 4. Built-in fan, 5. Support components, 501. Support ring, 502. Docking groove, 503. Support protrusion, 504. Positioning column, 505. Through hole, 6. Fan support plate, 7. Fan cover. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0029] like Figures 1 to 6 As shown, the fan assembly is a fan base, and the top edge of the fan base 1 is provided with a snap-fit ​​structure, which can be connected to air outlet structures of different styles through the snap-fit ​​structure.

[0030] Its fan assembly includes a fan chassis 2, a base cover 101, a support component 5 and a built-in fan 4; the fan chassis is provided with an air inlet 201 for the entry of external air, the support component is arranged on the fan chassis and located inside the base cover, the support component is provided with a support protrusion 503, the built-in fan 4 is fixed on the support protrusion, there is a gap space between the built-in fan and the support component, and the top of the base cover is provided with an opening corresponding to the built-in fan outlet.

[0031] The fan assembly of the present invention has a reasonable structural design. An annular support component that allows airflow to pass through is provided at the inner bottom of the fan base. A supporting protrusion is provided on the annular support component. The fan assembly is supported and fixed by the supporting protrusion. The structure is stable and reliable. It is not easy to loosen after long-term use, and the fan noise changes relatively little during later use.

[0032] The fan chassis 2 is an inverted cone-shaped structure, and the air inlet is arranged on the cone surface to form an inclined air inlet 201; the supporting component is rotatably arranged on the fan chassis, and the base cover and the supporting component are connected by a detachable structure.

[0033] The supporting component is rotatably arranged on the chassis, and the rotating structure adopts the existing conventional structure; the inverted cone-shaped structural design makes its air intake hidden.

[0034] A fan button 3 is provided on the base cover, and a connecting pillar 103 is provided on the inner wall of the base cover. The inner side of the fan button is connected to the connecting pillar. The connecting pillar and the base cover are an integral injection-molded structure with a stable and reliable structure. The connecting pillar is located at the top of the base cover, and the fan button is easy to install.

[0035] The supporting component 5 is an annular supporting component, and a docking groove 502 is provided on the edge of the annular supporting component. A connecting ear 102 is provided on the inner wall of the bottom of the base cover shell. The connecting ear is docked with the docking groove, and the connecting ear and the base cover shell are an integral injection molded part; the docking groove is preferably a step groove, and the connecting ear is overlapped in the step groove and then fastened by screws, so that the structure is stable and reliable.

[0036] The traditional structure is to set a series of fixing structures on the base cover to fix various components. Since the cover is a thin-walled part, the structural stability is relatively poor. However, the present invention sets a built-in breathable support structure, and the relevant components and the cover body are fixed on the support structure. The structure is stable and reliable, not easy to loosen after long-term use, and the noise change is small.

[0037] The edge of the support component is an annular support ring 501, which is provided with a through hole 505 for up and down ventilation; the support ring is a convex ring structure, which provides structural stability; the through holes are a group of through holes arranged circumferentially, and the through holes correspond to the inclined air inlet on the fan chassis, so the air flow of the intake is smooth.

[0038] A fan support plate 6 is fixed on the top of a group of support protrusions 503. The center of the fan support plate is a hollow structure. The built-in fan is fixed on the fan support plate. The lower inlet of the built-in fan extends out from the hollow structure of the fan support plate. The airflow is guided to the lower inlet of the built-in fan through a group of circumferentially arranged through holes, so that the air intake is smooth and the noise is relatively small.

[0039] The support protrusions are a group that are evenly spaced circumferentially, and a group of support protrusions are circumferentially spaced on the edge of the annular support component; a group of support protrusions and the annular support component are an integrated structure, and the top of the support protrusion is provided with a positioning column 504 for docking with the fan support plate, and the structure is stable and reliable.

[0040] A fan cover 7 is fixed to the fan support plate, and the built-in fan is located in the fan cover. A set of support protrusions is three support protrusions; the support protrusions have a certain height, and there is a certain gap between the lower end inlet of the built-in fan assembly and the support component, so that the air intake is smooth.

[0041] The above is only an illustration of a preferred embodiment of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0042] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A fan assembly, the fan assembly being a fan base, characterized in that: The fan base includes a fan chassis, a base cover, a supporting component and a built-in fan. The fan chassis is provided with an air inlet for external air to enter. The supporting component is arranged on the fan chassis and located inside the base cover. A supporting protrusion is provided on the supporting component. The built-in fan is fixed on the supporting protrusion. There is a gap space between the built-in fan and the supporting component. An opening is provided at the top of the base cover corresponding to the built-in fan outlet.

2. The fan assembly according to claim 1, wherein: The fan chassis is an inverted cone-shaped structure, and the air inlet is arranged on the cone surface to form an inclined air inlet.

3. The fan assembly according to claim 1, wherein: The supporting component is rotatably arranged on the fan chassis, and the base cover and the supporting component are connected via a detachable structure.

4. The fan assembly according to claim 1, wherein: A fan button is provided on the base cover, a connecting pillar is provided on the inner wall of the base cover, and the inner side of the fan button is connected to the connecting pillar.

5. The fan assembly according to claim 3, wherein: The support component is an annular support component, the edge of the annular support component is provided with a docking groove, and the bottom inner wall of the base cover shell is provided with a connecting lug, which is docked and connected to the docking groove.

6. The fan assembly according to claim 3, wherein: The edge of the support component is an annular support ring, and the support ring is provided with through holes for upward and downward ventilation.

7. The fan assembly according to claim 3, wherein: The supporting protrusions form a group, and a group of supporting protrusions are circumferentially spaced apart on the edge of the annular supporting component.

8. The fan assembly according to claim 7, wherein: A fan support plate is fixed on the top of the group of supporting protrusions, the center of the fan support plate is a hollow structure, the built-in fan is fixed on the fan support plate, and the lower end inlet of the built-in fan extends out from the hollow structure of the fan support plate.

9. The fan assembly according to claim 8, wherein: The group of supporting protrusions and the annular supporting component are an integrated structure, and the top end of the supporting protrusion is provided with a positioning column for docking with the fan support plate.

10. The fan assembly according to claim 8, wherein: A fan cover is fixed on the fan support plate, and the built-in fan is located in the fan cover.

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