Novel bladeless fan

Abstract

The utility model discloses a novel fan without fan blades. The novel fan without fan blades comprises a shell body and an axial flow impeller. The axial flow impeller is detachably connected in the shell main body; the center of the shell body and the center of the axial flow impeller are located on the same center shaft. The axial flow impeller comprises a fan blade supporting plate and a plurality of axial flow fan blades. The axial flow fan blades are fixedly arranged on the fan blade supporting plate; the axial flow fan blade comprises an inner fan blade and an outer fan blade; and the inner fan blades adopt at least two different fan blades. The fan blades and the shell are integrally formed, the strength is guaranteed, the built-in installation is free of potential safety hazards such as breakage or falling off, the upper air inlet adopts the design that the arc-shaped blades with three angles are combined and evenly distributed, the concave shape with the low inside and the high outside forms multi-air-channel extrusion air volume, the air flow speed is increased conveniently, the lower blades are consistent in size and shape and evenly distributed, and annular even air outlet is achieved; and the fan blades are still kept in silent operation under the condition of high-speed rotation.

Description

Technical Field

[0001] This application relates to the field of fan technology, and in particular to a novel bladeless fan. Background Technology

[0002] In daily life and work, fans are widely used as cooling devices. For example, by circulating air, they accelerate the conduction and dissipation of heat, thereby lowering the ambient temperature. Fans are installed in devices that require heat dissipation, such as computers, televisions, and lamps, to remove the generated heat, maintain the device's operating temperature within a reasonable range, and extend the device's lifespan.

[0003] Currently, traditional fans cannot meet people's growing needs due to their drawbacks such as high noise levels. The main problems are as follows:

[0004] (1) Traditional fans are noisy;

[0005] (2) It is assembled by independent structural fan blades and outer shell, which can easily cause safety hazards such as installation breakage or detachment;

[0006] (3) The high speed of the fan causes noise and uneven airflow, which in turn leads to a significant reduction in the lifespan of the fan. Utility Model Content

[0007] This application provides a novel bladeless fan to solve the technical problems in existing traditional fan structures, such as excessive noise and uneven airflow caused by high fan speed, which in turn significantly reduces the lifespan of the fan.

[0008] In a first aspect, this application provides a novel bladeless fan, comprising: a housing body and an axial impeller; the axial impeller is detachably connected to the housing body; the centers of the housing body and the axial impeller are located on the same central axis; wherein, the axial impeller comprises: a blade support plate and a plurality of axial blades; the axial blades are fixedly disposed on the blade support plate; the axial blades comprise: inner blades and outer blades; the inner blades employ at least two different types of blades.

[0009] In one embodiment of this application, the inner fan blades include three different types of fan blades: a first fan blade, a second fan blade, and a third fan blade, which are arranged in a circular pattern on a support plate.

[0010] In one embodiment of this application, each group includes at least one first wind vane, one second wind vane, and one third wind vane.

[0011] In one embodiment of this application, the height of the first fan blade is lower than the height of the second fan blade; the height of the second fan blade is lower than the height of the third fan blade.

[0012] In one embodiment of this application, the length of the first fan blade is less than the length of the second fan blade; the length of the second fan blade is less than the length of the third fan blade.

[0013] In one embodiment of this application, the number of the first, second, and third wind blades in each group is the same, and they are arranged in ascending order.

[0014] In one embodiment of this application, the number of the first, second, and third wind blades in each group is the same, and they are arranged in ascending order of length.

[0015] In one embodiment of this application, the inner fan blade forms a horizontal angle with the plane of the fan blade support plate, and the angle of the inner fan blade is less than or equal to a preset horizontal angle of the fan blade.

[0016] In one embodiment of this application, a blade angle is formed between adjacent inner blades; the blade angle is less than or equal to a blade angle threshold.

[0017] In one embodiment of this application, the inner fan blade has a concave shape structure with a lower inner side and a higher outer side; the end of the inner fan blade near the center of the fan blade support plate is lower than the end of the fan blade support plate, and the height of the ends of the arc-shaped fan blades near the edge of the fan blade support plate is the same, so as to form a multi-channel compressed air volume and accelerate the airflow speed; a high fan blade angle is formed between adjacent highest inner fan blades; the high fan blade angle adopts a preset value.

[0018] As described above, the novel bladeless fan of this application has the following beneficial effects:

[0019] (1) The novel bladeless fan structure provided in this application has an upper air inlet with a combination of three angled arc blades evenly distributed. The concave shape with the inner low and outer high forms multiple air channels to compress the air volume, which is convenient to accelerate the airflow speed. The lower blades are of the same size and shape and are evenly distributed, so that the air is evenly discharged in a ring. At the same time, it can still maintain quiet operation when the fan blades are rotating at high speed.

[0020] (2) The novel bladeless fan structure provided in this application can generate a large amount of airflow through the high-speed rotating blades to form a strong wind, avoiding the noise and uneven wind force caused by the high speed of traditional fans, and also improving the service life; this design not only solves the safety problem of traditional ceiling fan lights, but also provides a more efficient, environmentally friendly and quiet user experience.

[0021] (3) The novel bladeless fan of this application has a simple and beautiful structure and a small size. At the same time, the structure and accessories of this fan are highly versatile and can be applied to a wide range of applications. Attached Figure Description

[0022] Figure 1A The image shown is a top view of the overall structure of the novel bladeless fan described in this application embodiment.

[0023] Figure 1B The image shown is a schematic diagram of the appearance of the novel bladeless fan described in the embodiments of this application.

[0024] Figure 2 The image shown is an exploded view of the novel bladeless fan described in the embodiments of this application.

[0025] Figure 3A The diagram shown is a three-dimensional structural diagram of the axial impeller of the novel bladeless fan described in this application embodiment.

[0026] Figure 3B The diagram shown is a three-dimensional structural diagram of the axial impeller of the novel bladeless fan described in this application embodiment.

[0027] Figure 4A The image shown is a front view of the axial flow impeller in the axial flow impeller described in the embodiment of this application.

[0028] Figure 4B The image shown is a side view of the axial flow impeller in an axial flow impeller as described in an embodiment of this application.

[0029] Figure 5 The diagram shown is a schematic representation of the axial flow impeller angle in an axial flow impeller as described in an embodiment of this application.

[0030] Figure 6A The image shown is a top view of the air inlet of the novel bladeless fan described in this application embodiment.

[0031] Figure 6B The image shown is a side view of the air inlet of the novel bladeless fan described in this application embodiment.

[0032] Figure 6C The diagram shown illustrates the axial flow fan blade operation principle in one embodiment of the novel bladeless fan described in this application.

[0033] Figure 6D The image shown is a top view of the air outlet of the novel bladeless fan described in this application embodiment.

[0034] Figure 7 The diagram shows the air inlet and outlet directions of the novel bladeless fan described in this application embodiment.

[0035] Figure 8 The diagram shows the light-emitting display area of ​​the novel bladeless fan described in this application embodiment.

[0036] Explanation of icon numbers:

[0037] Serial Number Name

[0038] 1. New type of bladeless fan

[0039] 100 First Structure

[0040] 200 Second Structure

[0041] 110 Controller

[0042] 120 chassis

[0043] 130 chassis rear cover

[0044] 210 Lampshade

[0045] 220 light source board

[0046] 230 heatsink

[0047] 240 Outer shell body

[0048] 250 motor

[0049] 260 Axial Flow Impeller

[0050] 270 back cover

[0051] 280 air inlet grille

[0052] 261 Wind turbine blade support plate

[0053] 262 Axial Flow Fan Blade

[0054] 2621 Inner blade

[0055] 2622 Outer blade

[0056] 2621A First Blade

[0057] 2621B Second Blade

[0058] 2621C Third Wind Blade Detailed Implementation

[0059] The present application will be further described below with reference to the accompanying drawings, but the scope of protection of the present application is not limited to the following description.

[0060] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0061] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0062] The novel bladeless fan provided in the following embodiments of this application solves the technical problems in existing traditional fan structures, such as excessive noise and uneven airflow caused by high fan speed, which in turn significantly reduces the service life of the fan.

[0063] This application provides a novel bladeless fan that employs advanced airflow dynamics theory. It generates a powerful breeze by using a large volume of airflow from high-speed rotating blades, avoiding the noise and uneven airflow problems associated with traditional high-speed fans, while also extending its lifespan. This design not only solves the safety issues of traditional ceiling fan lights but also provides users with a more efficient, environmentally friendly, and quieter user experience.

[0064] The following will describe in detail, with reference to the accompanying drawings, the implementation principle of a novel bladeless fan according to this embodiment.

[0065] Please see Figure 1A , Figure 1B and Figure 2 The figures shown are a top view of the overall structure of the novel bladeless fan described in the embodiments of this application, a schematic diagram of the appearance of the novel bladeless fan described in the embodiments of this application, and an exploded view of the novel bladeless fan described in the embodiments of this application. Figure 1A , Figure 1B and Figure 2 As shown, the novel bladeless fan 1 includes a first structure 100 and a second structure 200. The first structure 100 and the second structure 200 are fixedly connected, and their central axes coincide. This fan structure can reduce the fan size and improve the user experience without changing the main structure and function.

[0066] In one embodiment, the first structure 100 includes: a chassis rear cover 130, a controller 110, and a chassis 120. The second structure 200 includes: a housing body 240 and an axial flow impeller 260.

[0067] Specifically, the controller 110 in the first structure 100 is fixed in the chassis 120 and sealed and fixed by the chassis rear cover 130.

[0068] In the second structure 200, the axial flow impeller 260 is detachably connected to the housing body 240; the housing body 240 and the axial flow impeller 260 are located on the same central axis.

[0069] Please see Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 5 The images shown are respectively: a three-dimensional structural diagram of the axial impeller of the novel bladeless fan described in this application embodiment; a three-dimensional structural diagram of the axial impeller of the novel bladeless fan described in this application embodiment; a front view of the axial impeller in the axial impeller described in this application embodiment; a side view of the axial impeller in the axial impeller described in this application embodiment; and a schematic diagram of the angle of the axial impeller in the axial impeller described in this application embodiment.

[0070] The axial flow impeller 260 includes a blade support plate 261 and a plurality of axial flow blades 262. The axial flow blades 262 are fixedly mounted on the blade support plate 261, and the plurality of axial flow blades 262 are all mounted on the same plane of the blade support plate 261.

[0071] In one embodiment, the axial flow fan blade 262 includes an inner fan blade 2621 and an outer fan blade 2622.

[0072] The inner fan blades 2621 employ at least two different types of blades, and the inner fan blades are evenly distributed. The outer fan blades 2622 are evenly distributed on the fan blade support plate 261 to ensure uniform airflow. The inner fan blades include three different types: a first fan blade 2621A, a second fan blade 2621B, and a third fan blade 2621C. The inner fan blades are arranged in groups in a circular pattern on the support plate. Each group includes at least one first fan blade 2621A, one second fan blade 2621B, and one third fan blade 2621C.

[0073] In one embodiment, the inner fan blades have different lengths; the inner fan blades of different lengths are evenly distributed in ascending order of length to form an angled multi-channel airflow. A high-blade angle is formed between adjacent, tallest inner fan blades; the high-blade angle uses a preset value.

[0074] In other words, the height of the first wind vane 2621A is lower than the height of the second wind vane 2621B; the height of the second wind vane 2621B is lower than the height of the third wind vane 2621C. The length of the first wind vane 2621A is less than the length of the second wind vane 2621B; the length of the second wind vane 2621B is less than the length of the third wind vane 2621C. Furthermore, the number of first wind vanes 2621A, second wind vanes 2621B, and third wind vanes 2621C in each group is the same, and they are arranged in ascending order of height. The number of first wind vanes 2621A, second wind vanes 2621B, and third wind vanes 2621C in each group is the same, and they are arranged in ascending order of length.

[0075] Specifically, the inner fan blade 2621 can use at least two different sizes of arc-shaped fan blades, and arrange the different sizes of arc-shaped fan blades in sequence, and make the central shaft adopt a closed structure and be integrated with the fan blades, so that different fan blades form different angles and angles, so as to further form a multi-compression acceleration air duct after air intake, thereby ensuring uniform air output.

[0076] Specifically, in this embodiment, the inner fan blade 2621 preferably adopts three arc-shaped fan blades of different heights. That is, the inner fan blade 2621 includes: a first fan blade 2621A, a second fan blade 2621B, and a third fan blade 2621C.

[0077] The first fan blade 2621A, the second fan blade 2621B, and the third fan blade 2621C all have different heights and lengths. Preferably, the length of the first fan blade 2621A is L1, the length of the second fan blade 2621B is L2, and the length of the third fan blade 2621C is L3; moreover, L1 is greater than L2, and L2 is greater than L3, i.e., L1>L2>L3. Simultaneously, the lengths of the first fan blade 2621A, the second fan blade 2621B, and the third fan blade 2621C are all less than the radius of the support plate.

[0078] Similarly, the outer fan blade 2622 corresponds one-to-one with the inner fan blade 2621 and is evenly distributed on the fan blade support plate 261 to ensure uniform airflow.

[0079] Furthermore, the inner fan blade 2621 forms an inner fan blade horizontal angle with the plane of the fan blade support plate 261, and the inner fan blade angle is less than or equal to the preset fan blade horizontal angle.

[0080] Adjacent inner blades 2621 form a blade angle; the blade angle is less than or equal to a blade angle threshold.

[0081] Specifically, preferably, the preset horizontal angle of the inner blades is 50°; the angle of the tallest blade is approximately 40°; and the blade angle threshold is 15°. Taking the three types of curved blades of the above-mentioned heights as examples, it can be seen that the first blade 2621A, the second blade 2621B, and the third blade 2621C form certain angles with the blade support plate 261, respectively forming angle e of the first blade 2621A, angle f of the second blade 2621B, and angle g of the third blade 2621C, and the angles of these three inner blades do not exceed the preset horizontal angle of 50°. At the same time, if the height of the first blade 2621A is set as the highest inner blade, then the angle α between adjacent highest inner blades (i.e., adjacent pairs of first blades 2621A) is set to approximately 40°.

[0082] Furthermore, the included angle b between the first blade 2621A and the second blade 2621B is set to not exceed 15°; the included angle c between the second blade 2621B and the third blade 2621C is set to not exceed 15°.

[0083] For example, the angle between two adjacent first blades 2621A is set to approximately 40°. If the blade of the second blade 2621B is at its highest point, then the angle between two adjacent second blades 2621B is also set to approximately 40°. And so on.

[0084] In one embodiment, the inner fan blade has a concave shape structure with a lower inner edge and a higher outer edge. The end of the inner fan blade near the center of the fan blade support plate 261 is lower than the edge of the fan blade support plate 261, and the height of the ends of the inner fan blades near the edge of the fan blade support plate 261 are all the same, so as to form a multi-channel compressed air volume and accelerate the airflow speed.

[0085] Specifically, the shape and height of the tail ends of all the curved fan blades must be consistent. That is, the shape and height of the tail ends (outer edge of the fan blade support plate 261) of the first fan blade 2621A, the second fan blade 2621B, and the third fan blade 2621C are completely identical. This setting primarily applies to the end of the curved fan blade near the center of the fan blade support plate 261. This arrangement allows for the acceleration of the generated airflow.

[0086] As shown above, the highest inner blade is targeted here, with its angle set at approximately 40° to ensure that the fan can compress the airflow during operation. The axial fan blade 262 is designed by evenly arranging three different heights of curved blades, thus creating airflow channels between pairs of the highest curved blades. Multiple combinations of such blades can then form multiple such airflow channels.

[0087] Please continue reading. Figure 2 See also Figure 6A , Figure 6B , Figure 6C , Figure 6D , Figure 7 and Figure 8 The images are respectively shown as a top view of the air inlet of the novel bladeless fan described in the embodiments of this application, a side view of the air inlet of the novel bladeless fan described in the embodiments of this application, a schematic diagram of the axial flow fan blade operating principle in one embodiment of the novel bladeless fan described in the embodiments of this application, a top view of the air outlet of the novel bladeless fan described in the embodiments of this application, a schematic diagram of the air inlet and outlet directions of the novel bladeless fan described in the embodiments of this application, and a schematic diagram of the light-emitting display area of ​​the novel bladeless fan described in the embodiments of this application.

[0088] In one embodiment, the second structure 200 further includes: a lampshade 210, a light source board 220, a heat sink 230, a motor 250, a rear cover 270, and an air inlet mesh cover 280.

[0089] The air inlet screen 280 is located at the center of the rear cover 270, and the air inlet screen 280 is opposite to the arc-shaped blades of the axial impeller 260 to ensure that the airflow can enter the fan smoothly.

[0090] The motor 250 is positioned between the rear cover 270 and the axial flow impeller 260 to ensure that while driving the axial flow impeller 260 to rotate, space can also be saved and space utilization improved.

[0091] The outer casing 240 is integrally formed with the axial flow impeller 260, and an air outlet is provided at the outer ring edge of the outer casing 240. A heat sink 230, a light source plate 220, and a lamp cover 210 are sequentially installed at the inner ring position of the air outlet.

[0092] Specifically, the heat sink 230 is used to dissipate heat from the fan and the light source board 220. The lampshade 210 is preferably made of ABS material.

[0093] This application employs a one-piece enclosed structure with an integrally molded arc-shaped fan blade and outer shell, ensuring strength and eliminating safety hazards such as breakage or detachment during internal installation. The upper air inlet features a combination of three evenly distributed arc-shaped blades at different angles, with the concave shape (lower inside, higher outside) creating multiple air ducts to compress airflow and accelerate airflow speed. The lower blades are uniform in size and shape, ensuring even and uniform annular airflow. Furthermore, the fan blades maintain quiet operation even at high speeds.

[0094] Specifically, firstly, after the fan is started, the air enters the second structure through the air inlet grille. The airflow then enters between the curved fan blades. At this point, the airflow is obstructed by the curved inner fan blades of different heights and lengths, thus propelling the movement of the inner fan blades. Then, by employing a three-angle blade combination design with evenly distributed blades, the maximum angle with the horizontal plane does not exceed 50°, and e < f < g. The central axis is a closed structure integrated with the fan blades. The angle between any two blades of the highest blade 1 is approximately 40°, the angle between blade 2 and blade 1 is b ≤ 15°, and the angle between blade 3 and blade 2 is c ≤ 15°. The shape and height H of the tail ends of all curved inner fan blades are consistent, forming a multi-compression acceleration airflow channel after air intake, ensuring uniform airflow. Simultaneously, the lengths of these three types of curved inner fan blades are L1 > L2 > L3, forming multiple angled airflow channels. Finally, the resulting airflow is discharged from the air outlet.

[0095] Therefore, it can be seen that the structure of the novel bladeless fan provided in this application has an upper air inlet with a combination of three types of arc-shaped blades evenly distributed. The concave shape with the inner low and outer high forms multiple air channels to compress the air volume, which is convenient to accelerate the airflow speed. The lower blades are of the same size and shape and are evenly distributed, so that the air is evenly discharged in a ring. At the same time, it can still maintain quiet operation when the fan blades are rotating at high speed.

[0096] In summary, the novel bladeless fan provided in this application can generate a strong wind by producing a large amount of airflow through high-speed rotating blades, avoiding the noise and uneven airflow problems caused by the high speed of traditional fans, while also improving service life. Furthermore, the novel bladeless fan of this application has a simple and aesthetically pleasing structure, is small in size, and its structure and accessories are highly versatile, making it applicable to a wide range of applications and possessing high practical value.

[0097] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A novel bladeless fan, characterized in that, The novel bladeless fan includes: a housing body and an axial flow impeller; The axial flow impeller is detachably connected to the housing body; The center of the outer casing and the center of the axial flow impeller are located on the same central axis; The axial flow impeller includes: a blade support plate and a plurality of axial flow blades; the axial flow blades are fixedly mounted on the blade support plate. The axial flow fan blades include: inner fan blades and outer fan blades; the inner fan blades employ at least two different types of fan blades.

2. The novel bladeless fan according to claim 1, characterized in that, The inner fan blades include three different types of blades: a first blade, a second blade, and a third blade. The inner fan blades are arranged in a circular pattern on the support plate.

3. The novel bladeless fan according to claim 2, characterized in that, Each group includes at least one first blade, one second blade, and one third blade.

4. The novel bladeless fan according to claim 3, characterized in that, The height of the first fan blade is lower than the height of the second fan blade; The height of the second fan blade is lower than the height of the third fan blade.

5. The novel bladeless fan according to claim 3, characterized in that, The length of the first fan blade is less than the length of the second fan blade; The length of the second blade is less than the length of the third blade.

6. The novel bladeless fan according to claim 4 or 5, characterized in that, The number of the first, second, and third wind turbine blades in each group is the same, and they are arranged in ascending order.

7. The novel bladeless fan according to claim 4 or 5, characterized in that, The number of the first, second, and third wind turbine blades in each group is the same, and they are arranged in ascending order of length.

8. The novel bladeless fan according to claim 1, characterized in that, The inner blade and the plane of the blade support plate form an inner blade horizontal angle, and the inner blade angle is less than or equal to the preset blade horizontal angle.

9. The novel bladeless fan according to claim 8, characterized in that, An angle is formed between adjacent inner fan blades; The blade angle is less than or equal to the blade angle threshold.

10. The novel bladeless fan according to claim 1, characterized in that, The inner fan blade has a concave shape structure with a lower inner edge and a higher outer edge. The end of the inner fan blade near the center of the fan blade support plate is lower than the end of the edge of the fan blade support plate, and the height of the end of the inner fan blade near the edge of the fan blade support plate is the same, so as to form a multi-channel compressed air volume and accelerate the air flow speed. The highest inner blades of adjacent wind turbines form a high blade angle; the high blade angle adopts a preset value.

Images