Bladeless fan

Abstract

The invention discloses a bladeless fan. The bladeless fan comprises an air outlet ring, a built-in fan assembly and a fan base. An inlet used for receiving airflow is formed in the lower portion of the air outlet ring, and an air outlet used for emitting airflow in an inner cavity is formed in the side face of the air outlet ring. The built-in fan assembly is used for generating air flow and conveying the air flow into the air outlet ring; the fan base is used for containing the built-in fan assembly and supporting and fixing the air outlet ring and comprises a base plate, a base housing and a supporting part, an air inlet allowing external air to enter is formed in the base plate, the supporting part is arranged on the base plate and located in the base housing, and a supporting protrusion is arranged on the supporting part. The built-in fan assembly is fixed to the supporting protrusion. A group of air inlets are formed in the chassis, so that the appearance of the whole bladeless fan is not influenced; the annular supporting component is provided with the supporting protrusions, the fan assembly is supported and fixed through the supporting protrusions, the structure is stable and reliable, looseness is not prone to occurring after long-term use, and noise changes in later use are relatively small.

Description

Technical Field

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

[0002] Compared with traditional fan air supply devices, the impeller of bladeless fans is set inside the base. The impeller is not visible from the outside, which prevents the possibility of human body contact with the rotating impeller. Bladeless fans are safe and reliable, and are gaining more and more attention and popularity among people.

[0003] The bladeless fan includes a base and an air outlet ring on the top. The fan is fixed in the base. 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, which affects 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 noise, which affects the use effect. For example, a fan assembly disclosed in patent CN211852220U has an internal fan assembly fixed to the top of the base by fasteners. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a bladeless fan to achieve the purpose of long-term stable and reliable use.

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

[0006] The bladeless fan includes an air outlet ring, a built-in fan assembly and a fan base;

[0007] The lower part of the air outlet ring is provided with an inlet for receiving air flow, and the side of the air outlet ring is provided with an air outlet for emitting the air flow in the internal cavity;

[0008] The built-in fan assembly is used to generate air flow and transport it to the air outlet circle;

[0009] The fan base is used to accommodate the built-in fan assembly and support and fix the air outlet ring. The fan base includes a chassis, a base cover and a supporting component. The chassis is provided with an air inlet for the entry of external air. The supporting component is arranged on the chassis and located inside the base cover. The supporting component is provided with a supporting protrusion, and the built-in fan assembly is fixed on the supporting protrusion.

[0010] Further or preferred:

[0011] The internal cavity of the air outlet ring is a cavity structure that is smaller at the top and larger at the bottom.

[0012] The air outlet ring includes two side cavity structures, the tops of the two side cavity structures are separated, and the bottoms of the two side cavity structures are connected to form an overall cavity structure, and the overall cavity structure is connected to the top of the built-in fan assembly.

[0013] The chassis is an inverted cone-shaped structure, the air inlet is arranged on the cone surface, the supporting component is rotatably arranged on the chassis, and the base cover is connected to the supporting component.

[0014] The support component is an annular support component, the edge of the annular support component is provided with a notch groove, and the bottom inner wall of the base cover shell is provided with a connecting lug, which is butt-connected to the notch groove.

[0015] The edge of the annular support component is provided with a through-hole structure for upward and downward ventilation.

[0016] The supporting protrusions form a group, and a group of supporting protrusions are circumferentially spaced apart on the edge of the annular supporting component.

[0017] An annular support disc is fixed on the top of the support protrusion, and the built-in fan assembly is fixed on the support disc.

[0018] The group of supporting protrusions and the annular supporting component are an integrated structure.

[0019] The built-in fan assembly includes a fan body and a fan cover. The top of the base cover is provided with an opening adapted to the top of the fan cover, and the fan cover is fixed on the support plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The bladeless fan has a reasonable structural design. The inner bottom of the fan base is provided with an annular support component that allows airflow to pass through. A group of air inlets are provided on the chassis, which does not affect the overall appearance of the bladeless fan. The annular support component is provided with a supporting protrusion, and the fan assembly is supported and fixed by the supporting protrusion. The structure is stable and reliable, and it is not easy to loosen after long-term use. The noise change in later use is relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents and symbols in the drawings of this specification:

[0023] Figure 1 This is a schematic structural diagram of the bladeless fan of the present invention.

[0024] Figure 2 for Figure 1 Schematic diagram with half of the air outlet ring removed.

[0025] Figure 3 This is a structural schematic diagram of the fan base of the present invention.

[0026] Figure 4 This is a schematic diagram of the interior of the fan base of the present invention.

[0027] Figure 5 Schematic diagram of the base cover of the present invention.

[0028] Figure 6 Schematic diagram of the supporting component of the present invention.

[0029] In the picture:

[0030] 1. Fan base, 101. Base cover, 102. Opening, 103. Connecting lug, 2. Chassis, 3. Air outlet ring, 4. Air outlet, 5. Built-in fan assembly, 6. Support component, 601. Support ring, 602. Docking part, 603. Through hole, 604. Support protrusion, 7. Support plate, 8. Fan cover. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0032] like Figures 1 to 6 As shown, the bladeless fan includes an air outlet ring 3, a built-in fan assembly 5 and a fan base 1; the built-in fan assembly is arranged in the fan base, and the air outlet ring is fixed on the fan base to form a bladeless fan. The bladeless fan is an overall structure with a gradual transition from small to large at the top and stable and reliable.

[0033] An inlet for receiving airflow is provided at the lower part of the air outlet ring 3, and an air outlet 4 for emitting the airflow from the internal cavity is provided on the side of the air outlet ring; the built-in fan assembly is used to generate air flow and transport it to the air outlet ring; the fan base 1 is used to accommodate the built-in fan assembly and support and fix the air outlet ring, and its fan base includes a chassis 2, a base cover 101 and a support component 6. The chassis is provided with an air inlet for the entry of external air, and the support component is arranged on the chassis and located in the base cover. A support protrusion is provided on the support component, and the built-in fan assembly is fixed on the support protrusion.

[0034] The bladeless fan 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, and a group of air inlets are provided on the chassis, which does not affect the overall appearance of the bladeless fan. A supporting protrusion is provided on the annular support component, and the fan assembly is supported and fixed by the supporting protrusion. The structure is stable and reliable, and it is not easy to loosen after long-term use, and the noise change in later use is relatively small.

[0035] The internal cavity of the air outlet ring 3 is a cavity structure that is smaller at the top and larger at the bottom. Preferably, the air outlet ring includes two cavity structures on both sides, the tops of the two cavity structures are separated, and the bottoms of the two cavity structures are connected to form an overall cavity structure, and the overall cavity structure is connected to the top of the built-in fan assembly.

[0036] The tops of the cavity structures on both sides are separated by partitions, that is, the cavity structures on both sides are not connected at the top; if the tops are connected, the airflow on one side will blow into the cavity on the other side at the top, affecting the air intake effect of the air outlet ring, and thus affecting the air outlet effect.

[0037] The chassis 2 is an inverted cone-shaped structure, the air inlet is arranged on the conical surface, the supporting component is rotatably arranged on the chassis, and the base cover and the supporting component are connected; the rotating structure adopts the existing conventional structure; the inverted cone-shaped structural design makes its air inlet hidden.

[0038] The supporting component 6 is an annular supporting component, and a notch groove is provided on the edge of the annular supporting component. A connecting ear 103 is provided on the inner wall of the bottom of the base cover shell, and the connecting ear and the notch groove are connected by screws; the notch groove is a docking part 602, preferably a step groove, and the connecting ear is overlapped in the step groove, and the structure is stable and reliable.

[0039] The edge support ring 601 of the annular support component is provided with a through-hole structure for upper and lower ventilation; the isomorphic rotating structure at the center position of the annular support component is connected to the chassis, and the structure is stable and reliable; the through-hole structure is a group of through-holes 603 arranged circumferentially, and the through-holes correspond to the inclined air inlets on the chassis, and the air flow of the intake is smooth.

[0040] The supporting protrusions 604 are arranged in a group, and a group of supporting protrusions are arranged on the edge of the annular supporting component at circumferential intervals; a group of supporting protrusions and the annular supporting component are an integrated structure, and the structure is stable and reliable.

[0041] like Figure 6 As shown, a group of support protrusions consists of three support protrusions; the support protrusions have a certain height, and a ring-shaped support plate 8 is fixed on the top of the support protrusions. The built-in fan assembly is fixed on the support plate. There is a certain gap space between the lower end inlet of the built-in fan assembly and the support component, so that the air intake is smooth.

[0042] The built-in fan assembly includes a fan body and a fan cover 8. The fan body is located in the fan cover to reduce fan noise. The top of the base cover is provided with an opening 102 that matches the top of the fan cover. The fan cover is fixed on the support plate.

[0043] 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.

[0044] 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 bladeless fan, characterized in that: include: The air outlet ring has an inlet at the bottom for receiving airflow and an outlet on the side for emitting airflow from the internal cavity; Built-in fan assembly, used to generate air flow and transport it to the air outlet circle; The fan base is used to accommodate the built-in fan assembly and support and fix the air outlet ring. The fan base includes a chassis, a base cover and a supporting component. The chassis is provided with an air inlet for the entry of external air. The supporting component is arranged on the chassis and located inside the base cover. The supporting component is provided with a supporting protrusion, and the built-in fan assembly is fixed on the supporting protrusion.

2. The bladeless fan according to claim 1, wherein: The internal cavity of the air outlet ring is a cavity structure that is smaller at the top and larger at the bottom.

3. The bladeless fan according to claim 1, wherein: The air outlet ring includes two side cavity structures, the tops of the two side cavity structures are separated, and the bottoms of the two side cavity structures are connected to form an overall cavity structure, and the overall cavity structure is connected to the top of the built-in fan assembly.

4. The bladeless fan according to claim 1, wherein: The chassis is an inverted cone-shaped structure, the air inlet is arranged on the cone surface, the supporting component is rotatably arranged on the chassis, and the base cover is connected to the supporting component.

5. The bladeless fan according to claim 4, wherein: The support component is an annular support component, the edge of the annular support component is provided with a notch groove, and the bottom inner wall of the base cover shell is provided with a connecting lug, which is butt-connected to the notch groove.

6. The bladeless fan according to claim 5, wherein: The edge of the annular support component is provided with a through-hole structure for upward and downward ventilation.

7. The bladeless fan according to claim 5, 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 bladeless fan according to claim 7, wherein: An annular support disc is fixed on the top of the support protrusion, and the built-in fan assembly is fixed on the support disc.

9. The bladeless fan according to claim 7, wherein: The group of supporting protrusions and the annular supporting component are an integrated structure.

10. The bladeless fan according to claim 8, wherein: The built-in fan assembly includes a fan body and a fan cover. The top of the base cover is provided with an opening adapted to the top of the fan cover, and the fan cover is fixed on the support plate.

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