Fan

Abstract

The embodiment of the utility model provides a fan. A fan shell comprises a surrounding wall structure arranged annularly and a plurality of first air outlet breast boards connected with the inner side of the surrounding wall structure. The fan blades are located in a cavity defined by the enclosure bulkhead structure. The air inlet cover is connected with the air inlet side of the enclosure bulkhead structure and is provided with at least one air inlet; the air outlet cover is connected with the air outlet side of the enclosure wall structure and comprises a base body and a plurality of second air outlet breast boards annularly connected to the periphery of the base body, the first air outlet breast boards and the second air outlet breast boards are correspondingly connected to form a plurality of air guide structures, an air outlet is formed between every two adjacent air guide structures, and the air outlet side of the base body is provided with an air inlet. Each air guide structure is used for guiding rotating air from the fan blades to the direct blowing direction step by step, and therefore air in the direct blowing direction is blown out from the air outlet. According to the fan, air output is more concentrated and directly blows to a user, the rapid cooling effect is achieved, and the user experience is better.

Description

Technical Field

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

[0002] In recent years, people have increasingly pursued a more convenient lifestyle. To meet the demand for fans during outdoor activities or other daily life scenarios, various types of fans have emerged on the market, such as desktop fans, floor fans, ceiling fans, handheld fans, neck fans, clip fans, and folding fans. Among them, portable fans are finding increasingly diverse applications. However, existing small fans have relatively low airflow efficiency and slow cooling speed, resulting in a poor user experience, which necessitates improvement. Utility Model Content

[0003] The main purpose of this application is to propose a fan with higher air output efficiency, aiming to solve the above-mentioned problems.

[0004] To achieve the above objectives, this application provides a fan comprising a fan housing, fan blades, an air inlet shroud, and an air outlet shroud. The fan housing includes a surrounding wall structure and multiple first air outlet baffles connected to the inner side of the surrounding wall structure; the fan blades are located within a cavity enclosed by the surrounding wall structure; the air inlet shroud is connected to the air inlet side of the surrounding wall structure and has at least one air inlet; the air outlet shroud is connected to the air outlet side of the surrounding wall structure and includes a base and multiple second air outlet baffles surrounding and connected to the periphery of the base. The multiple first air outlet baffles and the multiple second air outlet baffles are connected along corresponding lines to form multiple air guide structures, and an air outlet is formed between two adjacent air guide structures. Each air guide structure is used to gradually guide the rotating air from the fan blades towards a direct blowing direction, thereby blowing air out from the air outlet along the direct blowing direction.

[0005] Compared with the prior art, the fan provided in this embodiment forms the air guiding structure by correspondingly connecting the plurality of first air outlet plates and the plurality of second air outlet plates, thereby guiding the rotating air from the fan blades towards the direct blowing direction, so that the air is blown out from the air outlet along the direct blowing direction, making the air output of the fan more concentrated and blowing directly to the user, achieving a rapid cooling effect, thereby improving the air output efficiency of the fan and providing a better user experience.

[0006] In one embodiment, the fan further includes a motor mounted on the side of the base near the fan blades and located between the base and the fan blades; the fan blades have a base and a plurality of blades connecting the base, the base having a mounting groove, and the motor being at least partially located in the mounting groove. By mounting the motor on the side of the base near the fan blades and accommodating it in the mounting groove of the base of the fan blades, the stability of the motor installation is improved, and it does not interfere with the connection of the plurality of first air outlet plates and the plurality of second air outlet plates, making the fan structure more compact and safer.

[0007] In one embodiment, the substrate includes an outer surface away from the fan blades, an air inlet surface near the fan blades, and a mounting surface connecting the center of the air inlet surface. The distance between the air inlet surface and the enclosure structure gradually decreases along the direction from the air inlet side to the air outlet side, thereby pressurizing the rotating air from the fan blades. A plurality of second air outlet baffles are arranged and connected to the air inlet surface. By setting the distance between the air inlet surface and the enclosure structure to gradually decrease along the direction from the air inlet side to the air outlet side, the rotating air from the fan blades is gradually compressed along the direction from the air inlet side to the air outlet side, thereby pressurizing the rotating air from the fan blades, resulting in faster wind speed, lower air outlet temperature, and higher air outlet efficiency of the fan.

[0008] In one embodiment, the mounting surface is provided with a mounting structure, and the motor is mounted on the mounting structure. The mounting surface includes a recessed portion, and the mounting structure includes a mounting post connecting the bottom surface of the recessed portion. The motor is sleeved around the mounting post. The outer surface is a recessed surface facing the air inlet side, used to converge the air from the air outlet. The motor includes a motor shaft, a winding sleeved around the motor shaft, and a magnetic ring sleeved around the winding. By setting the outer surface to a recessed surface facing the air inlet side, the air entering the fan from the air inlet gradually converges along the recessed surface to the air outlet between the air guide structures, making the airflow more concentrated and increasing the air volume. This allows the fan to quickly cool the user, resulting in a better user experience.

[0009] In one embodiment, the fan further includes a cover plate covering the outer surface and forming a receiving cavity with the outer surface; the fan also includes a cooling element and / or at least one magnetic component, the cooling element being used for cooling to reduce the temperature of the fan's outlet side, and the at least one magnetic component being arranged around a preset center and used to magnetically fix the fan to an external object; the number of the at least one magnetic component is multiple, and the multiple magnetic components are arranged sequentially along the circumferential direction; the fan also includes a first fixing ring, the first fixing ring being fixed to the side of the air guide structure away from the fan blades. By installing the cooling element, the outlet temperature of the fan can be lowered, thereby achieving rapid cooling and a better user experience. In addition, the magnetic component allows the fan to be magnetically fixed to an external object, expanding the fan's application range and increasing the product's competitiveness.

[0010] In one embodiment, the fan further includes a circuit board, the cooling element is electrically connected to the circuit board via a wire passing through the substrate, the circuit board is disposed in the recessed portion and sleeved around the mounting post, and the motor is fixed to the circuit board. By disposing of the circuit board in the recessed portion and sleeved around the mounting post, the installation of the circuit board can be made more stable and secure.

[0011] In one embodiment, a plurality of first air outlet baffles and a plurality of second air outlet baffles are respectively connected to each other, and each first air outlet baffle is connected to the side of the corresponding second air outlet baffle near the fan blade. The first air outlet baffle is used to guide the rotating air from the fan blade toward the direct blowing direction, and the second air outlet baffle is used to further guide the air guided by the first air outlet baffle toward the direct blowing direction.

[0012] In one embodiment, each of the first air outlet baffles is arc-shaped, and the arc shape is consistent with the rotation direction of the fan blades; each of the second air outlet baffles is straight, and each of the second air outlet baffles is perpendicular to the rotation axis of the fan blades. By setting each of the first air outlet baffles to be arc-shaped, and the arc shape to be consistent with the rotation direction of the fan blades, and each of the second air outlet baffles to be straight, the air outlet loss can be minimized, ensuring that the air volume and air speed are not reduced, thereby improving the air outlet efficiency of the fan.

[0013] In one embodiment, the fan further includes an air guide located within the housing and at least partially covering the periphery of the fan blades. The air guide includes an annular wall structure, the inner diameter of at least a portion of which gradually increases from the air inlet side to the air outlet side. The annular wall structure includes a first enclosure wall and a second enclosure wall connecting the first enclosure wall to the side near the fan blades, the inner diameter of the second enclosure wall gradually increasing from the air inlet side to the air outlet side. The fan further includes a second fixing ring disposed on the side of the air inlet cover away from the air guide. The at least one air inlet includes multiple air holes, which are circular, square, or hexagonal. By providing the air guide, and ensuring that the inner diameter of at least a portion of the annular wall structure of the air guide gradually increases from the air inlet side to the air outlet side, air can be guided into the fan. Furthermore, the multiple air holes at the at least one air inlet ensure sufficient airflow while preventing foreign objects such as hair and dust from entering the fan, thus ensuring the safety of the fan during operation.

[0014] In one embodiment, the fan is a handheld fan with a handle or a desktop fan with a base. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a perspective view of a fan according to an embodiment of this application.

[0017] Figure 2 This is a perspective view of a fan according to an embodiment of this application from another angle.

[0018] Figure 3 This is an exploded view of a fan according to an embodiment of this application.

[0019] Figure 4 This is an exploded view of a fan according to an embodiment of this application from another angle.

[0020] Figure 5 This is a cross-sectional view of a fan according to an embodiment of this application.

[0021] Figure 6 This is an exploded view of a fan according to another embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] The terms "first," "second," and "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects and not to describe a specific order. Furthermore, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0026] Please see Figures 1 to 5 As shown in the embodiment of this application, a fan 100 is provided, which includes a fan housing 1, fan blades 2, an air inlet cover 30, and an air outlet cover 40. The fan housing 1 includes a surrounding wall structure 101 and a plurality of first air outlet baffles 102 connected to the inner side of the surrounding wall structure 101; the fan blade 2 is located in the cavity enclosed by the surrounding wall structure 101; the air inlet shroud 30 is connected to the air inlet side 3 of the surrounding wall structure 101 and has at least one air inlet 31; the air outlet shroud 40 is connected to the air outlet side 4 of the surrounding wall structure 101 and includes a base 41 and a plurality of second air outlet baffles 45 surrounding the periphery of the base 41. The plurality of first air outlet baffles 102 and the plurality of second air outlet baffles 45 are connected in a corresponding manner to form a plurality of air guide structures 5. An air outlet 6 is formed between two adjacent air guide structures 5. Each air guide structure 5 is used to guide the rotating air from the fan blade 2 gradually toward the direct blowing direction, so that the air blown out from the air outlet 6 along the direct blowing direction.

[0027] It is understandable that various types of fans currently on the market, such as desktop fans, floor fans, handheld fans, neck fans, clip fans, and folding fans, generally have an air outlet cover on the air outlet side 4 of their fan blades. These air outlet covers typically have protective guardrails that cut off the fan's airflow, causing the airflow to be dispersed, resulting in lower airflow efficiency and poor cooling effect. In the fan 100 provided in this embodiment, the fan housing 1 is surrounded by multiple first air outlet guardrails 102 connected to the inner side of the enclosure structure 101, and the base 41 of the air outlet cover 40 is surrounded by second air outlet guardrails. The fan 100 has a fan guard plate 45. Simultaneously, the plurality of first air outlet guard plates 102 and the plurality of second air outlet guard plates 45 are connected in a corresponding manner to form a plurality of air guide structures 5. An air outlet 6 is formed between two adjacent air guide structures 5. The air outlet 6 is arranged around the air outlet side 4 of the fan 100. Each air guide structure 5 can gradually guide the rotating air from the fan blades 2 towards the direct blowing direction, thereby blowing air out from the air outlet 6 along the direct blowing direction. This ensures that the airflow from the fan 100 is directed towards the user, making the airflow more concentrated and stronger, thus improving the cooling effect of the fan 100. The multiple first air outlet baffles 102 and the multiple second air outlet baffles 45 are connected to form the air guide structure 5, thereby guiding the rotating air from the fan blades 2 towards the direct blowing direction, so that the air is blown out from the air outlet 6 along the direct blowing direction, making the air output of the fan 100 more concentrated and blowing directly to the user, achieving a rapid cooling effect, thereby improving the air output efficiency of the fan 100 and providing a better user experience.

[0028] Specifically, the fan 100 also includes a motor 7, which is mounted on the side of the base 41 near the fan blade 2 and located between the base 41 and the fan blade 2. The fan blade 2 has a base 201 and a plurality of blades 202 connecting the base 201. The base 201 has a mounting groove 203, and the motor 7 is at least partially located in the mounting groove 203. By mounting the motor 7 on the side of the base 41 near the fan blade 2 and accommodating it in the mounting groove 203 of the base 201 of the fan blade 2, the stability of the motor 7 installation is improved, and it does not interfere with the connection of the plurality of first air outlet plates 102 and the plurality of second air outlet plates 45, making the structure of the fan 100 more compact and safer.

[0029] The base 41 includes an outer surface 42 away from the fan blade 2, an air inlet surface 43 close to the fan blade 2, and a mounting surface 44 connecting the center of the air inlet surface 43. The distance between the air inlet surface 43 and the enclosure structure 101 gradually decreases along the direction from the air inlet side 3 to the air outlet side 4, thereby pressurizing the rotating air from the fan blade 2. A plurality of second air outlet baffles 45 are arranged and connected around the air inlet surface 43. It can be understood that the distance between the air inlet surface 43 and the enclosure structure 101 gradually decreases along the direction from the air inlet side 3 to the air outlet side 4, so that the rotating air outlet of the fan blade 2 is gradually compressed along the direction from the air inlet side 3 to the air outlet side 4, thereby pressurizing the rotating air outlet of the fan blade 2, resulting in a faster wind speed, a lower air outlet temperature, and a higher air outlet efficiency of the fan 100.

[0030] The mounting surface 44 is provided with a mounting structure 441, and the motor 7 is mounted on the mounting structure 441; the mounting surface 44 includes a groove 442, and the mounting structure 441 includes a mounting post 443 connecting the bottom surface of the groove 442, and the motor 7 is sleeved around the mounting post 443; the outer surface 42 is a groove surface 421 recessed towards the air inlet side 3, used to gather the air from the air outlet 6; the motor 7 includes a motor shaft 71, a winding 72 sleeved around the motor shaft 71, and a magnetic ring 73 sleeved around the winding 72. It can be understood that the outer surface 42 is a groove surface 421 recessed towards the air inlet side 3. The air entering the fan 100 from the air inlet 31 gradually converges along the groove surface 421 to the air outlet 6 between the air guide structures 5, making the air volume more concentrated and increasing the air volume. At the same time, it is gradually compressed along the air inlet side 3 to the air outlet side 4, thereby pressurizing the air and blowing it out. After convergence and pressurization, the air volume of the air outlet is larger and the wind speed is faster, so that the fan 100 can quickly cool down the user and make the user experience better.

[0031] The fan 100 further includes a cover plate 8, which covers the outer surface 42 and forms a receiving cavity 81 with the outer surface 42; the fan 100 also includes a cooling element 9 and / or at least one magnetic element 10, the cooling element 9 is used for cooling to reduce the temperature of the air outlet side 4 of the fan 100, and the at least one magnetic element 10 is arranged around a predetermined center and is used to magnetically fix the fan 100 to an external object; the number of the at least one magnetic element 10 is multiple, and the multiple magnetic elements 10 are arranged sequentially along the circumferential direction; the fan 100 also includes a first fixing ring 11, which is fixed to the side of the air guide structure 5 away from the fan blade 2. In another embodiment, as Figure 6As shown, the second air outlet baffle 45 can also be connected in multiple rings around the periphery of the cover plate 8, covering the outer surface 42 of the assembly. By installing the cooling element 9, the outlet temperature of the fan 100 can be lowered, thereby achieving rapid cooling and a better user experience. In addition, the magnetic element 10 can magnetically fix the fan 100 to an external object, expanding the application range of the fan 100 and increasing the product's competitiveness.

[0032] The fan 100 also includes a circuit board 12. The cooling element 9 is electrically connected to the circuit board 12 via a wire passing through the substrate 41. The circuit board 12 is disposed in the recess 442 and sleeved around the mounting post 443. The motor 7 is fixed to the circuit board 12. By disposing of the circuit board 12 in the recess 442 and sleeved around the mounting post 443, the installation of the circuit board 12 can be made more stable and safer.

[0033] Furthermore, multiple first air outlet baffles 102 and multiple second air outlet baffles 45 are respectively connected to each other. Each first air outlet baffle 102 is connected to the side of the corresponding second air outlet baffle 45 near the fan blade 2. The first air outlet baffle 102 is used to guide the rotating air from the fan blade 2 towards the direct blowing direction, and the second air outlet baffle 45 is used to further guide the air guided by the first air outlet baffle 102 towards the direct blowing direction.

[0034] Specifically, each of the first air outlet baffles 102 is arc-shaped, and the arc shape is consistent with the rotation direction of the fan blade 2; each of the second air outlet baffles 45 is straight, and each of the second air outlet baffles 45 is perpendicular to the rotation axis of the fan blade 2. It can be understood that the arc shape of each first air outlet baffle 102, consistent with the rotation direction of the fan blade 2, and the straight shape of each second air outlet baffle 45, guides the rotating airflow from the fan blade 2 along the direction of rotation at the first air outlet baffle 102, preventing airflow loss due to sudden changes in direction. Then, the airflow is guided to a direct blowing direction at the second air outlet baffle 45, minimizing airflow loss and ensuring that airflow volume and speed are not reduced, thereby improving the airflow efficiency of the fan 100.

[0035] Furthermore, the fan 100 also includes an air guide 13, which is located in the housing and at least partially covers the periphery of the fan blade 2. The air guide 13 includes an annular wall structure 131, the inner diameter of which at least a portion gradually increases along the direction from the air inlet side 3 to the air outlet side 4. The annular wall structure 131 includes a first enclosure wall 132 and a second enclosure wall 133 connecting the first enclosure wall 132 to the side of the fan blade 2. The inner diameter of the second enclosure wall 133 gradually increases along the direction from the air inlet side 3 to the air outlet side 4. The fan 100 also includes a second fixing ring 14, which is disposed on the side of the air inlet cover 30 away from the air guide 13. The at least one air inlet 31 includes a plurality of air holes 311. The plurality of air holes 311 are circular, square, or regular hexagonal. By setting the air guide 13, and the inner diameter of at least part of the annular wall structure 131 of the air guide 13 gradually increases along the direction from the air inlet side 3 to the air outlet side 4, the air can be guided into the fan 100. In addition, the at least one air inlet 31 is provided with multiple air holes 311, which can ensure the air intake while preventing foreign objects such as hair and dust from entering the fan 100, thus ensuring the safety of the fan 100 during operation.

[0036] Furthermore, the fan 100 is a handheld fan with a handle 15 or a desktop fan with a base. It can be understood that the fan 100 can be one of various types of fans, such as a desktop fan, a floor fan, a handheld fan, a neck fan, a clip fan, or a folding fan. In this embodiment, the fan 100 can be a handheld fan or a desktop fan.

[0037] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fan, characterized by, It includes: The fan housing includes a surrounding enclosure structure and a plurality of first air outlet baffles connecting the inner side of the enclosure structure; The fan blades are located within the cavity enclosed by the wall structure. An air inlet hood, connected to the air inlet side of the enclosure structure, has at least one air inlet; An air outlet hood, connected to the air outlet side of the enclosure structure, includes a base and multiple second air outlet baffles circumferentially connected to the periphery of the base. The multiple first air outlet baffles and the multiple second air outlet baffles are connected in a corresponding manner to form multiple air guide structures. An air outlet is formed between two adjacent air guide structures. Each air guide structure is used to guide the rotating air from the fan blades gradually toward the direct blowing direction, thereby blowing air out of the air outlet along the direct blowing direction.

2. The fan of claim 1, wherein, The fan also includes a motor mounted on the side of the base near the fan blades and located between the base and the fan blades; the fan blades have a base and a plurality of blades connected to the base, the base having a mounting groove, and the motor being at least partially located in the mounting groove.

3. The fan of claim 2, wherein, The substrate includes an outer surface away from the fan blade, an air inlet surface close to the fan blade, and a mounting surface connecting the center of the air inlet surface; the distance between the air inlet surface and the enclosure structure gradually decreases along the direction from the air inlet side to the air outlet side, thereby pressurizing the rotating air from the fan blade; a plurality of second air outlet baffles are arranged and connected to the air inlet surface.

4. The fan of claim 3, wherein, The mounting surface is provided with a mounting structure, and the motor is mounted on the mounting structure; the mounting surface includes a groove, and the mounting structure includes a mounting post connecting the bottom surface of the groove, and the motor is sleeved around the mounting post; the outer surface is a groove surface recessed towards the air inlet side, used to gather the air from the air outlet; the motor includes a motor shaft, a winding sleeved around the motor shaft, and a magnetic ring sleeved around the winding.

5. The fan of claim 4, wherein, The fan further includes a cover plate, which covers the outer surface and forms a receiving cavity with the outer surface; the fan further includes a cooling element and / or at least one magnetic element, the cooling element is used to cool and reduce the temperature of the air outlet side of the fan, and the at least one magnetic element is arranged around a preset center and is used to magnetically fix the fan to an external object; the number of the at least one magnetic element is multiple, and the multiple magnetic elements are arranged sequentially along the circumferential direction; the fan further includes a first fixing ring, which is fixed to the side of the air guide structure away from the fan blades.

6. The fan of claim 5, wherein, The fan also includes a circuit board, the cooling element is electrically connected to the circuit board through a wire passing through the substrate, the circuit board is disposed in the groove and sleeved around the mounting post, and the motor is fixed on the circuit board.

7. The fan of claim 1 wherein, Multiple first air outlet baffles and multiple second air outlet baffles are respectively connected to each other. Each first air outlet baffle is connected to the side of the corresponding second air outlet baffle near the fan blade. The first air outlet baffle is used to guide the rotating air from the fan blade toward the direct blowing direction, and the second air outlet baffle is used to further guide the air guided by the first air outlet baffle toward the direct blowing direction.

8. The fan of claim 5 wherein, Each of the first air outlet baffles is arc-shaped, and the arc shape is consistent with the rotation direction of the fan blade; each of the second air outlet baffles is straight, and each of the second air outlet baffles is perpendicular to the rotation axis of the fan blade.

9. The fan of claim 1 wherein, The fan further includes an air guide, which is located in the housing and at least partially covers the periphery of the fan blades. The air guide includes an annular wall structure, the inner diameter of which at least a portion gradually increases from the air inlet side to the air outlet side. The annular wall structure includes a first enclosure wall and a second enclosure wall connecting the first enclosure wall to the side near the fan blades. The inner diameter of the second enclosure wall gradually increases from the air inlet side to the air outlet side. The fan further includes a second fixing ring, which is disposed on the side of the air inlet cover away from the air guide. The at least one air inlet includes a plurality of air holes. The plurality of air holes are circular, square, or regular hexagonal.

10. The fan of claim 1, wherein, The fan is a handheld fan with a handle or a desktop fan with a base.

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