Fan

Abstract

The utility model provides a fan which comprises a fan head and a supporting frame, and the fan head comprises a shell assembly, a fan blade assembly arranged in the shell assembly and a first connecting piece connected with the shell assembly; the supporting frame comprises a second connecting piece and a supporting leg which is connected with the second connecting piece and can be bent and deformed, the supporting leg is used for arranging the fan on an external object, one of the first connecting piece and the second connecting piece is provided with a first mounting groove, and the other one of the first connecting piece and the second connecting piece is provided with an elastic connecting part; and the elastic connecting part is used for extending into the first mounting groove and is elastically deformed under the pressing of the groove wall of the first mounting groove, so that the elastic connecting part is propped against and fixed in the first mounting groove, and the fan head and the support frame are connected into a whole. Compared with the prior art, the fan head and the supporting frame of the fan are rapidly connected through the first mounting groove and the elastic connecting part, production and assembly are convenient, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fan structure, and particularly relates to a fan. BACKGROUND

[0002] In hot weather, when going out, small fans become the first choice of users for cooling and heat dissipation due to portability. Existing fan products include a fan head and a support frame. The support frame can be placed on a desktop or the surface of other objects or held by a user for use. The fan head and the support frame are connected in an integrated or fixed manner. However, this connection manner requires the fan head and the support frame to be assembled synchronously, which leads to low efficiency in assembly. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, it is necessary to provide a fan which is convenient to assemble.

[0004] The present application provides a fan, which comprises

[0005] a fan head, comprising a shell assembly, a fan blade assembly arranged in the shell assembly, and a first connecting piece connecting the shell assembly; and

[0006] a support frame, comprising a second connecting piece and at least one support leg which is bendable and deformed and connects the second connecting piece, the at least one support leg being used to arrange the fan on an external object,

[0007] wherein one of the first connecting piece and the second connecting piece has a first mounting groove, and the other of the first connecting piece and the second connecting piece has an elastic connecting part, the elastic connecting part being used to extend into the first mounting groove and elastically deform under the pressure of the groove wall of the first mounting groove so as to be fixed in abutment in the first mounting groove, and the fan head and the support frame are connected in one body.

[0008] Compared with the prior art, the fan provided by the present application realizes the quick abutment and mounting of the first connecting piece in the fan head and the first mounting groove and the elastic connecting part in the second connecting piece of the support frame, so that the fan head and the support frame can be assembled separately, and then assembled together, which is convenient for production and assembly and improves production efficiency. The structure of the elastic connecting part and the first mounting groove is simple and firm, which guarantees the strength and service life of the product, improves the competitiveness of the product and the user experience, and additionally, the bendable and deformable support leg is arranged, so that the fan can be held by a user, can be erected on the surface of an object, or can be wound on an object, which can free the hands of the user and is convenient for the user to use.

[0009] In some embodiments, the elastic connecting part comprises a plurality of elastic pieces with gaps between them so that the plurality of elastic pieces can be deformed under the pressure of the slot wall of the first mounting slot. Due to the elasticity of the elastic pieces, deformation can occur when the elastic pieces are inserted into the first mounting slot, and the elastic pieces can also reset against the slot wall of the first mounting slot after being installed in place, thereby ensuring the stability of the connection; the gaps are provided so that the elastic pieces have a certain deformation space after deformation, thereby avoiding damage to the product and improving the service life of the product.

[0010] In some embodiments, the free end of the elastic piece is provided with a protrusion, and the slot wall of the first mounting slot is provided with a stepped portion for abutting against the protrusion to fix the elastic piece in the first mounting slot. The protrusion not only strengthens the strength of the elastic piece, but also cooperates with the stepped portion to firmly clamp the elastic piece in the first mounting slot, thereby ensuring the stability of the product connection, facilitating use, and being practical.

[0011] In some embodiments, one of the first connecting piece and the second connecting piece comprises a base plate and a first side wall connected to the base plate, the at least one supporting leg is mounted to the base plate, the base plate and the first side wall enclose the first mounting slot, and the elastic piece is fixed against the inner side of the first side wall.

[0012] In some embodiments, one of the first connecting piece and the second connecting piece further comprises a second side wall connected to the base plate and located outside the first side wall; one of the first connecting piece and the second connecting piece further comprises a plurality of reinforcing plates connected between the first side wall and the second side wall; one of the first connecting piece and the second connecting piece is further provided with a positioning column, and the other one of the first connecting piece and the second connecting piece is provided with a positioning slot, the positioning column extends into the positioning slot; the cross section of the first side wall is circular, and the cross section of the second side wall is circular; the positioning column is located at the center of the first side wall; the first side wall and the second side wall are coaxially arranged. The second side wall and the reinforcing plates are provided to ensure the strength of the product components and improve the service life of the product; the positioning column cooperates with the positioning slot to make it easier to position and install the elastic piece when it is inserted into the first mounting slot, thereby avoiding misalignment and causing damage to the product.

[0013] In some embodiments, one of the first connecting member and the second connecting member further comprises a fixing cover having at least one opening, the fixing cover is fixed on a side of the base plate away from the fan head, a fixed end of the at least one support leg is fixed between the fixing cover and the base plate, a support part of the at least one support leg extends from the at least one opening and is arranged on the external object; the fixing cover and the base plate are locked by a locking member; one of the first connecting member and the second connecting member further comprises a fixing plate between the base plate and the fixing cover, the locking member passes through an opening on the fixing plate to lock the base plate, the fixing plate and the fixing cover together, a surface of the fixing plate close to the fixed end has a fixing groove matched with at least part of the shape of the fixed end, the fixed end is arranged in the fixing groove; the number of the at least one support leg is at least two, and the number of the at least one opening is at least two. The fixing cover is arranged to facilitate the assembly of the support leg and is connected and fixed by the locking member, and the structure is simple.

[0014] In some embodiments, the fixing end comprises a spherical portion, and the fixing groove comprises a spherical groove; the fixing end further comprises two limiting planes arranged oppositely and limiting protrusions arranged on the two limiting planes respectively, and the fixing groove comprises two matching planes arranged oppositely and matching grooves arranged on the two matching planes respectively, the limiting planes abut against the matching planes, and the limiting protrusions are located in the matching grooves; and / or the base plate and the first side wall further enclose a second mounting groove, the second mounting groove is arranged oppositely to the first mounting groove, and the fixing plate is arranged in the second mounting groove; the inner diameter of the first side wall gradually decreases in the direction from the fan head to the support frame; the edge of the fixing cover is aligned with and connected to the edge of the first side wall away from the fan head; the surface of the fixing cover away from the fan head is an arc surface protruding toward the side away from the base plate; and / or the at least one opening is a semi-closed opening arranged at the edge of the fixing cover; the fixing end further comprises a clamping portion connected to the spherical portion and a connecting portion connected to the clamping portion away from the spherical portion, the diameter of the clamping portion is adapted to the size of the at least one opening and smaller than the diameter of the spherical portion, and the support portion comprises a support body that can be bent and shaped and a flexible material portion wrapped around the periphery of the support body, the flexible material portion has a connecting groove, and the connecting portion is fixed in the connecting groove; the outer surface of the connecting portion comprises a first convex-concave structure, the inner surface of the connecting groove comprises a second convex-concave structure, and the first convex-concave structure and the second convex-concave structure are engaged to connect the connecting portion and the flexible material portion. The spherical portion and the spherical groove are arranged to match each other, so that the support leg can be rotationally connected to the fixing groove, and the rotation direction and angle are limited through the design of the related limiting structure, so as to avoid product damage caused by excessive rotation angle, thereby facilitating user use; the structure design of the support leg makes the product better placed on the surface of an object or held by a user, so that the product is applicable to more scenarios.

[0015] In some embodiments, the first connecting piece is rotationally connected to the shell assembly; the first connecting piece has a mounting space for accommodating the shell assembly, and the elastic connecting portion is arranged on the side of the first connecting piece away from the mounting space; and the shell assembly is provided with a button at the end away from the first connecting piece. The rotational connection between the first connecting piece and the shell assembly allows the shell assembly to rotate, which facilitates adjustment of the air outlet direction and use by the user.

[0016] In some embodiments, the shell assembly has an air inlet and an air outlet, the fan blade assembly includes an impeller and a wind guide; the impeller is arranged adjacent to the air inlet; the wind guide is arranged between the air outlet and the impeller, for guiding the airflow generated by the impeller to the air outlet and increasing the pressure; the wind guide includes a wind guide body and a wind guide slope arranged on the side of the wind guide body facing the impeller, one end of the wind guide slope close to the impeller is closer to the axis of the wind guide body than the other end. By arranging the wind guide, the airflow can be pressurized, thereby generating a larger air outlet speed and air volume, and improving the heat dissipation effect; by arranging the wind guide slope, the airflow is pressurized when passing through the wind guide slope, thereby generating a larger air outlet speed and air volume, and improving the heat dissipation effect.

[0017] In some embodiments, the wind guide further includes a wind guide plate arranged on the wind guide body, one end of the wind guide plate away from the wind guide body is connected to the shell assembly; the number of the wind guide plates is 2 or more, the wind guide plates are arranged on the outer periphery of the wind guide body; the impeller includes a hub and blades arranged on the outer periphery of the hub, the number of the blades is multiple; the hub includes a main body part and an arc part, the main body part is a cylindrical structure, the arc part is arranged on one end of the main body part close to the air inlet; the blades are arranged on the main body part and extend to the arc part; the blades are arc-shaped blades. By connecting the wind guide plate to the shell assembly and the wind guide, the wind guide can be stably installed, and the air outlet direction can be guided, so that the airflow flows in the preset direction, and the air outlet effect is better; by arranging the arc part on the hub, more air can be guided to the blades, and the generated airflow can be pressurized, so that the airflow speed is larger and the air outlet volume is larger. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0019] Figure 1 is a perspective view of a fan according to an embodiment of the present application;

[0020] Figure 2 is a perspective view of a fan according to an embodiment of the present application from another angle;

[0021] Figure 3 is Figure 1 an exploded view of the fan shown;

[0022] Figure 4 is Figure 1An exploded view of the fan from another angle;

[0023] Figure 5 yes Figure 1 An exploded view of the fan head shown.

[0024] Figure 6 yes Figure 5 An exploded view of the fan head from another angle;

[0025] Figure 7 yes Figure 1 The cross-sectional view of the fan along line VII-VII is shown.

[0026] Figure 8 yes Figure 1 Exploded view of the fan's support frame shown;

[0027] Figure 9 yes Figure 8 An exploded view of the support frame from another angle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Fan; 1. Fan head; 2. Support frame; 11. Housing assembly; 12. Fan blade assembly; 13. First connector; 14. Control assembly; 21. Second connector; 22. Support foot; 11a. Receiving cavity; 11b. Air inlet; 11c. Air outlet; 111. Front cover; 111a. Snap-on interface; 112. Middle frame; 1121. Snap-on block; 1122. Mounting position; 1123. First rotating part; 113. Rear cover; 113a. Snap-on slot; 114. Outer shell; 114a 114b, Shaft hole; 121, Mounting hole; 121, Impeller; 1211, Hub; 1212, Blade; 1213, Main body; 1214, Arc-shaped part; 122, Air guide; 1221, Air guide body; 1221a, Air guide slope; 1222, Air guide plate; 1222a, Bayonet; 122a, Mounting cavity; 1223, Cover plate; 122b, Wiring hole; 13a, Mounting space; 131, Flexible connection part; 1311, Spring piece; 1312, Gap; 132, Protrusion; 133. Positioning groove; 134. Second rotating part; 141. Battery; 142. Circuit board; 143. Button; 144. Charging port; 211. First mounting groove; 2111. First annular sidewall; 2112. Second annular sidewall; 212. Stepped part; 213. Positioning post; 214. Base plate; 2151. First sidewall; 2152. Second sidewall; 2153. Reinforcing plate; 216. Fixing cover; 217. Fixing plate; 218. Second mounting groove; 2161. Opening; 2171. Opening; 2172. Fixing groove; 2173. Spherical groove; 2174. Mating plane; 2175. Mating groove; 221. Fixing end; 222. Support part; 223. Locking fastener; 2211. Spherical part; 2212. Limiting plane; 2213. Limiting protrusion; 2214. Snap-fit ​​part; 2215. Connecting part; 2216. First concave-convex structure; 2221. Support body; 2222. Flexible material part; 2223. Connecting groove; 2224. Second concave-convex structure. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Please see Figure 1 and Figure 2 This application provides a fan 100. The fan 100 includes a fan head 1 and a support frame 2 connected to the fan head 1; wherein, the fan head 1 includes a housing assembly 11, a fan blade assembly 12, and a first connector 13. The housing assembly 11 has a receiving cavity 11a, an air inlet 11b communicating with the receiving cavity 11a, and an air outlet 11c opposite to the air inlet 11b and communicating with the receiving cavity 11a; the fan blade assembly 12 is disposed in the receiving cavity 11a; the first connector 13 is connected to the housing assembly 11 and includes an elastic connecting portion 131, the elastic connecting portion 131 being connected to the support frame 2.

[0035] Please see Figure 3 , Figure 4 and Figure 7 The support frame 2 includes a second connector 21, on which a first mounting groove 211 is provided. The first mounting groove 211 is an annular groove. When the elastic connecting part 131 extends into the first mounting groove 211 and undergoes elastic deformation under the pressure of the groove wall of the first mounting groove 211, the elastic connecting part 131 abuts and is fixed in the first mounting groove 211, thereby connecting the fan head 1 and the support frame 2 together.

[0036] Compared to existing technologies, the fan 100 provided in this application uses the first connector 13 in the fan head 1 and the first mounting groove 211 and elastic connecting part 131 in the second connector 21 of the support frame 2 to achieve quick abutment installation of the two, so that they can be assembled separately during production assembly, and then the fan head 1 and the support frame 2 can be assembled together, which facilitates production assembly and improves production efficiency; moreover, the structure of the elastic connecting part 131 and the first mounting groove 211 is simple and strong, ensuring product strength and service life, improving product competitiveness and user experience.

[0037] The elastic connecting part 131 includes a plurality of spring pieces 1311, which are pluggable and detachable connected to the first mounting groove 211. Specifically, the spring pieces 1311 have a certain elasticity, can deform under external force, and can recover or generate a rebound force. When the elastic connecting part 131 extends into the first mounting groove 211, the spring pieces 1311 abut against the groove wall of the first mounting groove 211. Using an annular groove for connection with the spring pieces 1311 is simple in structure and low in cost; when the fan head 1 needs to be installed on the support frame 2, it is only necessary to insert the spring pieces 1311 into the first mounting groove 211. Due to the elasticity of the spring pieces 1311, they can deform when inserted into the first mounting groove 211, and can return to their original position and abut against the groove wall of the first mounting groove 211 after installation, thereby ensuring the stability of the connection, making assembly and connection convenient and quick, and thus improving product competitiveness.

[0038] Specifically, a protrusion 132 is provided on the outer wall of the spring piece 1311, located at the free end of the spring piece 1311, that is, the end of the spring piece 1311 away from the fan head 1. A stepped portion 212 is provided on the inner wall of the first mounting groove 211, which abuts against the protrusion to restrict the spring piece 1311 within the first mounting groove 211. The protrusion 132 not only strengthens the spring piece 1311 but also cooperates with the stepped portion 212 to firmly engage the spring piece 1311 within the first mounting groove 211, resulting in a stable product connection, ease of use, and practicality.

[0039] In this embodiment, the first mounting groove 211 has an annular sidewall, including a first annular sidewall 2111 and a second annular sidewall 2112, wherein the distance between the first annular sidewall 2111 and the axis of the first mounting groove 211 is greater than the distance between the first annular sidewall 2111 and the axis of the first mounting groove 211, thereby forming the stepped portion 212. When the elastic connecting portion 131 is installed in the first mounting groove 211, the protrusion 132 abuts against the second annular sidewall 2112.

[0040] In this embodiment, the protrusion 132 has an arc-shaped surface, which makes it easy to engage with the step portion 212 when it abuts against it, so that the user can assemble the spring piece 1311 with the first mounting groove 211 with a small amount of force.

[0041] To provide space for elastic deformation, a gap 1312 is provided between every two spring pieces 1311, allowing the spring pieces 1311 to have a certain deformation space when deformation occurs, thus avoiding damage to the spring pieces 1311. The first connector 13 also includes a positioning groove 133, around which the spring pieces 1311 are arranged; the first mounting groove 211 is provided with a positioning post 213 for insertion into the positioning groove 133. In some embodiments, the first connector 13 can rotate about an axis relative to the first mounting groove 211. The gap 1312 allows the spring piece 1311 to be better inserted into the first mounting slot 211, providing deformation space when the spring piece 1311 is pressed inward, thus preventing damage to the spring piece 1311. The positioning post 213 cooperates with the positioning slot 133, making it easier to position and install the spring piece 1311 when it is inserted into the first mounting slot 211, preventing misalignment that could damage the product. The first connector 13 can rotate around its axis, facilitating angle adjustment of the fan head 1 and improving the user experience.

[0042] Continue reading Figure 3 , Figure 4 and Figure 7 The support frame 2 further includes a support foot 22, which is located at the end of the second connector 21 away from the first connector 13. The support foot 22 is rotatably connected to the second connector 21. The support foot 22 allows the product to be better supported on an object surface or held by the user; the rotatable connection expands the applicability of the support foot 22.

[0043] Specifically, the support leg 22 can be bent and deformed, allowing the fan 100 to be mounted on an external object. For example, the support leg 22 can be opened and placed on the surface of the external object, or the support leg 22 can be bent and deformed and placed on the surface of the object, or the support leg 22 can be bent and deformed and wrapped around the object, thus enabling the fan 100 to be used in multiple scenarios.

[0044] The number of support legs 22 is three, and each support leg 22 is rotatably connected to the second connecting member 21. In one usage state, the three support legs 22 are rotated at the same angle to support the surface of the object, achieving stable support. The support legs 22 are flexible and can deform and maintain their deformed state under the action of external force, such as bending at a certain angle or wrapping around the object, thereby supporting the fan 100; and after deformation, they can also return to their original state under the action of external force. In other embodiments, the number of support legs 22 can be one, two, four, or other numbers, and this application does not impose a specific limitation.

[0045] Please see Figure 8 and Figure 9 In this embodiment, the second connector 21 includes a base plate 214 and a first sidewall 2151 connected to the base plate 214. The support foot 22 is mounted on the base plate 214. The base plate 214 and the first sidewall 2151 form the first mounting groove 211. The spring piece 1311 is abutted and fixed to the inner side of the first sidewall 2151.

[0046] The second connector 21 further includes a second sidewall 2152 connected to the substrate 214 and located outside the first sidewall 2151; one of the first connector 13 and the second connector 21 further includes a plurality of reinforcing plates 2153 connected between the first sidewall 2151 and the second sidewall 2152. The first sidewall 2151 has a circular cross-section, and the second sidewall 2152 has a circular cross-section; the positioning post 213 is located at the center of the first sidewall 2151; the first sidewall 2151 and the second sidewall 2152 are coaxially arranged. The second sidewall 2152 and the reinforcing plates 2153 ensure the strength of the product components and improve the product's service life.

[0047] The second connector 21 further includes a fixing cover 216, which has at least one opening 2161. The fixing cover 216 is fixed to the side of the base plate 214 away from the fan head 1. The fixing end 221 of the support foot 22 is fixed between the fixing cover 216 and the base plate 214. The support portion 222 of the support foot 22 extends out from the opening 2161 and is used to be mounted on the external object. The fixing cover 216 and the base plate 214 are locked together by a locking fastener 223.

[0048] The second connector 21 further includes a fixing plate 217, which is located between the base plate 214 and the fixing cover 216. A locking fastener 223 passes through an opening 2171 on the fixing plate 217 to secure the base plate 214, the fixing plate 217, and the fixing cover 216 together. The surface of the fixing plate 217 near the fixing end 221 has a fixing groove 2172 that at least partially matches the shape of the fixing end 221, and the fixing end 221 is disposed in the fixing groove 2172. The fixing cover 216 facilitates the assembly of the support leg 22 and is fixed by the locking fastener 223, resulting in a simple structure.

[0049] Specifically, the fixed end 221 includes a spherical portion 2211, and the fixed groove 2172 includes a spherical groove 2173; the fixed end 221 also includes two opposing limiting planes 2212 and limiting protrusions 2213 respectively disposed on the two limiting planes 2212, the fixed groove 2172 includes two oppositely arranged mating planes 2174 and mating grooves 2175 respectively disposed on the two mating planes 2174, the limiting planes 2212 abut against the mating planes 2174, and the limiting protrusions 2213 are located in the mating grooves 2175.

[0050] In this embodiment, the substrate 214 and the first sidewall 2151 further form a second mounting groove 218, which is disposed opposite to the first mounting groove 211, and the fixing plate 217 is disposed in the second mounting groove 218; the inner diameter of the first sidewall 2151 gradually decreases along the direction from the fan head 1 to the support frame 2; the edge of the fixing cover 216 is aligned with and connected to the edge of the first sidewall 2151 away from the fan head 1; the surface of the fixing cover 216 away from the fan head 1 is an arc-shaped surface protruding toward the side away from the substrate 214.

[0051] Specifically, the opening 2161 is a semi-closed opening located at the edge of the fixed cover 216. The opening 2161 cooperates with the fixed plate 217 to restrict the rotation angle of the support foot 22, so that the support foot 22 can only rotate within the range of the opening 2161.

[0052] The fixed end 221 further includes a snap-fit ​​portion 2214 connecting the spherical portion 2211 and a connecting portion 2215 connecting the snap-fit ​​portion 2214 away from the spherical portion 2211. The diameter of the snap-fit ​​portion 2214 is adapted to the size of the opening 2161 and is smaller than the diameter of the spherical portion 2211. The support portion 222 includes a bendable and shape-adjustable support body 2221 and a flexible material portion 2222 covering the periphery of the support body 2221. The flexible material portion 2222 has a connecting groove 2223, and the connecting portion 2215 is fixed in the connecting groove 2223. The outer surface of the connecting portion 2215 includes a first convex-concave structure 2216, and the inner surface of the connecting groove 2223 includes a second convex-concave structure 2224. The first convex-concave structure 2216 and the second convex-concave structure 2224 engage to connect the connecting portion 2215 to the flexible material portion 2222. The spherical part 2211 and spherical groove 2173 are designed to match each other, so that the support foot 22 can be rotatably connected to the fixed groove 2172. The rotation direction and angle are limited by the design of the relevant limiting structure to avoid damage to the product due to excessive rotation angle, thereby making it convenient for users to use. The structural design of the support foot 22 allows the product to be better placed on the surface of the object or held by the user, making it applicable to more scenarios.

[0053] Specifically, the support body 2221 is made of metal materials such as aluminum and iron, and the flexible material part 2222 is made of materials with a certain degree of flexibility or elasticity such as silicone and rubber. During production, the flexible or elastic material is wrapped around the support body 2221 and injection molded to form the flexible material part 2222, which is then assembled on the second connector 21.

[0054] In this embodiment, to facilitate adjustment of the fan head 1 angle, the first connector 13 is rotatably connected to the housing assembly 11. The first connector 13 has an installation space 13a for accommodating the housing assembly 11, and the elastic connecting portion 131 is located on the side of the first connector 13 away from the installation space. A button 143 is provided at the end of the housing assembly 11 away from the first connector 13. Specifically, the first connector 13 has a U-shaped structure, and the housing assembly 11 is located at the opening. The rotatable connection between the first connector 13 and the housing assembly 11 allows the housing assembly 11 to rotate, facilitating adjustment of the airflow direction and making it convenient for user use.

[0055] Please see Figure 5 and Figure 6The fan blade assembly 12 includes an impeller 121 and an air guide 122. The impeller 121 is disposed near the air inlet 11b. The air guide 122 is located between the air outlet 11c and the impeller 121, and is used to guide the airflow generated by the impeller 121 to the air outlet 11c and pressurize it. By providing the air guide 122, the airflow can be pressurized, thereby generating a larger airflow velocity and volume, and improving the heat dissipation effect.

[0056] Specifically, the air guide 122 includes an air guide body 1221 and an air guide inclined surface 1221a disposed on the side of the air guide body 1221 facing the impeller 121. The end of the air guide inclined surface 1221a closer to the impeller 121 is closer to the axis of the air guide body 1221 than the other end. The air guide inclined surface 1221a is provided so that the airflow is pressurized when passing through the air guide inclined surface 1221a, thereby generating a larger air velocity and air volume, and improving the heat dissipation effect.

[0057] In this embodiment, the air guide 122 further includes an air guide plate 1222, which is disposed on the air guide body 1221. One end of the air guide plate 1222, away from the air guide body 1221, is connected to the housing assembly 11. There are two or more air guide plates 1222, which are arranged around the outer periphery of the air guide body 1221. The air guide plate 1222 connects the housing assembly 11 and the air guide 122, ensuring stable installation of the air guide 122 and guiding the airflow direction, allowing the airflow to flow along a preset direction for better airflow performance.

[0058] The impeller 121 includes a hub 1211 and blades 1212 disposed on the outer periphery of the hub 1211. There are multiple blades 1212, and each blade 1212 is an arc-shaped blade. The hub 1211 includes a main body 1213 and an arc-shaped portion 1214. The main body 1213 has a cylindrical structure, and the arc-shaped portion 1214 is disposed at one end of the main body 1213 near the air inlet 11b. The blades 1212 are disposed on the main body 1213 and extend to the arc-shaped portion 1214. The placement of the arc-shaped portion 1214 on the hub 1211 not only facilitates guiding more air to the blades 1212 but also pressurizes the generated airflow, resulting in a higher airflow velocity and a greater output air volume.

[0059] Continue reading Figure 5 and Figure 6The housing assembly 11 includes a front cover 111, a middle frame 112, and a rear cover 113, with the front cover 111 and rear cover 113 detachably connected to the middle frame 112. Specifically, the middle frame 112 is provided with a locking block 1121, and the front cover 111 and the rear cover 113 are provided with corresponding locking slots 113a. The locking block 1121 engages with the locking slots 113a, thereby enabling the detachable connection between the front cover 111 and the middle frame 112, and the detachable connection between the middle frame 112 and the rear cover 113. The front cover 111, the rear cover 113, and the middle frame 112 enclose the receiving cavity 11a, and the rear cover 113 is provided with an air inlet 11b, which communicates with the receiving cavity 11a. The front cover 111 is a cylindrical structure open at both ends, communicating with the receiving cavity 11a.

[0060] The air guide 122 is disposed on the front cover 111. The end of the air guide plate 1222 away from the air guide body 1221 is connected to the front cover 111. The air guide plate 1222, the front cover 111, and the air guide body 1221 enclose the air outlet 11c, which communicates with the receiving cavity 11a. Specifically, the front cover 111 is provided with a snap-fit ​​interface 111a. The end of the air guide plate 1222 away from the air guide body 1221 is snapped into the snap-fit ​​interface 111a, thereby achieving the connection between the two. The end of the air guide plate 1222 away from the air guide body 1221 is provided with a snap-fit ​​slot 1222a, which snaps into the side wall of the middle frame 112, thereby achieving the connection between the two.

[0061] The middle frame 112 has a first rotating part 1123 on opposite sides, and the first connector 13 has a second rotating part 134 at a corresponding position. The first rotating part 1123 and the second rotating part 134 are rotatably connected. Specifically, one of the first rotating part 1123 and the second rotating part 134 is a pivot, and the other is a groove. The first rotating part 1123 is a pivot, and the second rotating part 134 is a groove, with the pivot passing through the groove.

[0062] The housing assembly 11 further includes an outer shell 114, which is fitted over the outer side of the middle frame 112 to protect the middle frame 112. The outer shell 114 is provided with a pivot hole 114a corresponding to the position of the first rotating part 1123, and the first rotating part 1123 passes through the pivot hole 114a.

[0063] The fan head 1 also includes a control component 14 for controlling the fan 100. The control component 14 includes a circuit board 142, a battery 141 electrically connected to the circuit board 142, a button 143, and a charging port 144. The middle frame 112 has a mounting position 1122, and the circuit board 142 is mounted on the mounting position. The outer casing 114 has a mounting hole 114b, and the button 143 passes through the mounting hole 114b and is electrically connected to the circuit board 142.

[0064] The air guide 122 further includes a mounting cavity 122a, which is located on the side of the air guide body 1221 away from the impeller 121, and the battery 141 is located in the mounting cavity 122a. The air guide 122 also includes a cover plate 1223, which is located on the side of the mounting cavity 122a away from the impeller 121 to seal the battery 141 in the mounting cavity 122a. The air guide 122 also has a wire hole 122b, which communicates with the mounting cavity 122a and is used to pass wires connecting the circuit board 142 and the battery 141 through it.

[0065] The above-described 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 in that, include A fan head includes a housing assembly, a fan blade assembly disposed within the housing assembly, and a first connector connecting the housing assembly; as well as The support frame includes a second connector and at least one bendable support leg connected to the second connector, the at least one support leg being used to mount the fan onto an external object. In this configuration, one of the first connector and the second connector has a first mounting groove, and the other of the first connector and the second connector has an elastic connecting portion. The elastic connecting portion is used to extend into the first mounting groove and undergo elastic deformation under the pressure of the groove wall of the first mounting groove so that the elastic connecting portion abuts and is fixed in the first mounting groove, thereby connecting the fan head and the support frame together.

2. The fan as described in claim 1, characterized in that, The elastic connection includes multiple spring pieces, and there are gaps between the multiple spring pieces so that the multiple spring pieces can deform under the pressure of the groove wall of the first mounting groove.

3. The fan as described in claim 2, characterized in that, The free end of the spring piece is provided with a protrusion, and the groove wall of the first mounting groove is provided with a stepped portion, which is used to abut against the protrusion to fix the spring piece to the first mounting groove.

4. The fan as described in claim 2, characterized in that, One of the first connector and the second connector includes a base plate and a first sidewall connecting the base plate. The at least one support foot is mounted on the base plate. The base plate and the first sidewall form the first mounting groove. The spring piece abuts and is fixed to the inner side of the first sidewall.

5. The fan as described in claim 4, characterized in that, One of the first connector and the second connector further includes a second sidewall connected to the substrate and located outside the first sidewall; one of the first connector and the second connector further includes a plurality of reinforcing plates connected between the first sidewall and the second sidewall; one of the first connector and the second connector is further provided with a positioning post, and the other of the first connector and the second connector is provided with a positioning groove, the positioning post extending into the positioning groove; the cross-section of the first sidewall is circular, and the cross-section of the second sidewall is circular; The positioning post is located at the center of the first sidewall; the first sidewall and the second sidewall are coaxially arranged.

6. The fan as described in claim 4, characterized in that, One of the first connector and the second connector further includes a fixing cover, the fixing cover having at least one opening, the fixing cover being fixed to the side of the substrate away from the fan head, the fixing end of the at least one support foot being fixed between the fixing cover and the substrate, and the support portion of the at least one support foot extending from the at least one opening and being used to be mounted on the external object. The fixing cover and the base plate are secured together by fasteners; one of the first connector and the second connector further includes a fixing plate, the fixing plate being located between the base plate and the fixing cover, the fasteners passing through an opening on the fixing plate to secure the base plate, the fixing plate and the fixing cover together as a whole, the surface of the fixing plate near the fixing end having a fixing groove that is at least partially adapted to the shape of the fixing end, the fixing end being disposed in the fixing groove; the number of the at least one support leg is at least two, and the number of the at least one opening is at least two.

7. The fan as described in claim 6, characterized in that, The fixed end includes a spherical portion, and the fixed groove includes a spherical groove; the fixed end also includes two opposing limiting planes and limiting protrusions respectively disposed on the two limiting planes; the fixed groove includes two oppositely disposed mating planes and mating grooves respectively disposed on the two mating planes; the limiting planes abut against the mating planes, and the limiting protrusions are located in the mating grooves; and / or The substrate and the first sidewall further form a second mounting groove, which is opposite to the first mounting groove. The fixing plate is disposed in the second mounting groove. The inner diameter of the first sidewall gradually decreases along the direction from the fan head to the support frame. The edge of the fixing cover is aligned with and abuts the edge of the first sidewall away from the fan head. The surface of the fixing cover away from the fan head is an arc-shaped surface protruding towards the side away from the substrate. The at least one opening is a semi-closed opening located at the edge of the fixed cover; the fixed end further includes a snap-fit ​​portion connecting the spherical portion and a connecting portion connecting the snap-fit ​​portion away from the spherical portion, the diameter of the snap-fit ​​portion being adapted to the size of the at least one opening and smaller than the diameter of the spherical portion, the support portion including a bendable and shapeable support body and a flexible material portion covering the periphery of the support body, the flexible material portion having a connecting groove, the connecting portion being fixed in the connecting groove; the outer surface of the connecting portion including a first convex-concave structure, the inner surface of the connecting groove including a second convex-concave structure, the first convex-concave structure engaging with the second convex-concave structure to connect the connecting portion with the flexible material portion.

8. The fan as claimed in claim 1, characterized in that, The first connector is rotatably connected to the housing assembly; the first connector has an installation space for accommodating the housing assembly, and the elastic connection portion is located on the side of the first connector away from the installation space; a button is provided at the end of the housing assembly away from the first connector.

9. The fan as claimed in claim 1, characterized in that, The housing assembly has an air inlet and an air outlet, and the fan blade assembly includes an impeller and a guide vane; the impeller is disposed near the air inlet; the guide vane is disposed between the air outlet and the impeller, and is used to guide the airflow generated by the impeller to the air outlet and pressurize it; the guide vane includes a guide body and a guide slope disposed on the side of the guide body facing the impeller, and the end of the guide slope closer to the impeller is closer to the axis of the guide body than the other end.

10. The fan as claimed in claim 9, characterized in that, The air guide component further includes an air guide plate, which is disposed on the air guide body. The end of the air guide plate away from the air guide body is connected to the housing assembly. There are two or more air guide plates, which are arranged around the outer periphery of the air guide body. The impeller includes a hub and blades disposed on the outer periphery of the hub. There are multiple blades. The hub includes a main body and an arc-shaped part. The main body is a cylindrical structure, and the arc-shaped part is disposed at the end of the main body near the air inlet. The blades are disposed on the main body and extend to the arc-shaped part. The blades are arc-shaped blades.

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