Fan head and fan

Abstract

The utility model relates to a fan head and a fan, and the fan head comprises a mesh enclosure assembly which comprises a fan blade assembly and a first lock catch assembly; the mounting seat is provided with a second lock catch assembly; the motor assembly comprises an outer rotor and a stator which is detachable relative to the outer rotor; the outer rotor is installed in the mesh enclosure assembly and used for driving the fan blade assembly to rotate. The stator is fixed on the mounting seat; when the first lock catch assembly and the second lock catch assembly are installed in a matched mode, the outer side of the stator is sleeved with the outer rotor, and the outer rotor and the stator are assembled together. The mesh enclosure assembly can be integrally detached from the mounting base in a relatively independent mode, overall mounting is also facilitated, and storage and use are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of home appliances, specifically to a fan head and a fan. Background Technology

[0002] The fan blades rotate because the motor rotor shaft rotates, driving the blades mounted on the shaft. Generally, when installing a fan, the rear grille needs to be installed on the head unit first, along with the rear grille lock nut. Then, the fan blades are installed and their lock nuts are installed, followed by the front grille. Disassembly follows the same process, only in reverse order. This assembly / disassembly method is quite cumbersome. The reason is that the fan blades are directly fixed to the motor shaft and driven by it, which limits the ease of assembly and disassembly. Furthermore, the grille and fan blades are independent structures. Therefore, both disassembly and assembly must begin from the head unit and proceed with each component sequentially. For users, cleaning and storing the fan is also very complicated.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the problem of cumbersome fan assembly and disassembly in existing technologies, this utility model discloses a fan head and a fan.

[0005] The technical solution adopted in this embodiment of the utility model is as follows:

[0006] A fan head includes: a mesh cover assembly including a blade assembly and a first locking assembly; a mounting base with a second locking assembly; and a motor assembly including an outer rotor and a stator detachably mounted relative to the outer rotor. The outer rotor is mounted in the mesh cover assembly and is used to drive the blade assembly to rotate. The stator is fixed to the mounting base. When the first locking assembly and the second locking assembly are installed together, the outer rotor is fitted over the outside of the stator and assembled with the stator.

[0007] A further technical solution is as follows: the motor assembly further includes a drive shaft; the fan blade assembly is fixed to the drive shaft;

[0008] The mesh assembly includes a front mesh and a drive bearing;

[0009] The outer ring of the transmission bearing is fixed to the front mesh, and the inner ring of the transmission bearing is fixed to the transmission shaft and can rotate with the transmission shaft.

[0010] A further technical solution is as follows: after the drive shaft passes through the center of the fan blade assembly and is fixed to the fan blade assembly, it passes through the rotating bearing from the inside of the front net and extends out from the outside of the front net; the fastener is fixed to the front end of the drive shaft from the outside of the front net cover.

[0011] A further technical solution is that the rear end of the drive shaft is exposed in the mesh assembly for assembly with the stator.

[0012] A further technical solution is as follows: the mesh assembly includes a front mesh and a rear mesh detachably connected to the front mesh; a second mounting port is provided on the rear mesh; the stator extends into the outer rotor ring through the second mounting port and is assembled with the outer rotor.

[0013] A further technical solution is as follows: the fan blade assembly includes a mounting shaft and fan blades fixed to the outer side wall of the mounting shaft; the outer rotor is fixed to the inner side wall of the mounting shaft; a first mounting port is provided on one side of the mounting shaft; the stator extends into the outer rotor ring through the first mounting port and is assembled with the outer rotor.

[0014] A further technical solution is as follows: the mounting base includes a rear seat and a front seat fixed to the rear seat; the stator is fixed to the front seat; there is an installation space between the outer side wall of the front seat and the inner side wall of the rear seat, and the first locking assembly is assembled with a second locking assembly disposed on the inner side wall of the rear seat through the installation space.

[0015] A further technical solution is as follows: the second locking assembly includes a plurality of second locking blocks; the second locking block includes a slider and a blocking block;

[0016] The first locking assembly includes a plurality of first locking blocks;

[0017] The slider includes a sliding end and a terminal; there is an inclined edge between the sliding end and the terminal, such that a plurality of second locking blocks form a single-turn thread shape; the blocking block is located on the side of the terminal; there is a gap on the side of the sliding end to separate adjacent second locking blocks and to serve as an insertion port for the first locking block.

[0018] A fan with a fan head as described in any of the preceding claims, the fan further comprising a base assembly; the mounting base includes a rear seat; a connecting structure is provided on the rear seat; the rear seat is mounted to the base assembly via the connecting structure.

[0019] A further technical solution is as follows: the rear end of the rear seat is provided with a receiving groove; the base assembly includes a chassis, a support rod and a receiving cavity opened on the chassis; the size of the receiving cavity is suitable for accommodating the rear end of the rear seat;

[0020] The bottom end of the support rod is mounted on one side of the receiving cavity via a first rotating structure, so that the support rod can rotate around the first rotating structure to be perpendicular to the chassis, or rotate to be parallel to the chassis and placed in the receiving cavity;

[0021] The top end of the support rod is mounted in the receiving groove via a second rotating structure and can be rotated in the receiving groove to extend out from the opening at either end of the receiving groove.

[0022] The beneficial effects of this utility model embodiment are as follows:

[0023] In this embodiment of the invention, both the fan blade assembly and the outer rotor used to drive the fan blade assembly to rotate are fixed in the mesh cover assembly. The mesh cover assembly can be detached from the mounting base relatively independently, facilitating overall installation, storage, and use. Furthermore, the way the first and second locking assemblies are fixed to each other is simple and easy to operate, making the assembly and disassembly of the mesh cover assembly even more convenient. It is suitable for separate storage, saving storage space.

[0024] In this embodiment of the invention, a rotating bearing is installed at the center of the front grille. The drive shaft is fixedly fitted to the front grille via the rotating bearing. When the drive shaft rotates, the inner ring of the rotating bearing rotates accordingly, while the outer ring of the rotating bearing remains stably fixed with the front grille. This installation method ensures the rotational center accuracy of the fan blade assembly, achieving relative fixation between the fan blade assembly and the front grille, and also ensuring high-speed concentric operation of the fan blade assembly. Simultaneously, the rear end of the drive shaft protrudes from the grille assembly and extends into the stator of the oil-impregnated bearing, further ensuring the concentricity of operation.

[0025] In this embodiment of the utility model, the first locking assembly and the second locking assembly are single-turn threaded rotary buckles, which are locked together by mutual rotation after insertion, making them easy to assemble and disassemble. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the fan head in an embodiment of this utility model.

[0027] Figure 2 This is a structural schematic diagram of the mesh assembly in an embodiment of this utility model.

[0028] Figure 3 This is a schematic diagram of the mounting base in an embodiment of this utility model.

[0029] Figure 4 yes Figure 2 Another perspective of the diagram.

[0030] Figure 5 This is a schematic diagram of the motor assembly in an embodiment of the present invention.

[0031] Figure 6 yes Figure 3 An enlarged schematic diagram of part A in the middle.

[0032] Figure 7 This is a schematic diagram of the fan structure in an embodiment of this utility model.

[0033] In the diagram: 1. Netting assembly; 101. Fan blade assembly; 1011. Mounting shaft; 1012. Fan blade; 1013. First mounting port; 102. First locking assembly; 103. Front net; 104. Rear net; 105. Second mounting port; 106. Fastener; 107. Rotating bearing; 108. Disassembly port; 2. Mounting base; 201. Second locking assembly; 2011. Slider; 2012. Stop; 2013. Sliding end; 2014. Terminal; 2015. Gap; 202. Rear seat; 203. Front seat; 204. Receiving groove; 3. Motor assembly; 301. Outer rotor; 302. Stator; 303. Drive shaft; 304. Stator housing; 5. Base assembly; 501. Chassis; 502. Support rod; 503. Receiving cavity. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0036] Figure 1 This is a schematic diagram of the fan head structure in an embodiment of this utility model. (See attached diagram.) Figure 1 As shown, the fan head includes a grille assembly 1, a mounting base 2, and a motor assembly 3. The grille assembly 1 can be detached from the mounting base 2 as a whole, or it can be assembled onto the mounting base 2 as a whole.

[0037] Figure 2 This is a structural schematic diagram of the mesh assembly in an embodiment of this utility model. (See attached diagram.) Figure 2As shown, the mesh assembly 1 includes a fan blade assembly 101 and a first locking assembly 102.

[0038] Figure 3 This is a structural schematic diagram of the mounting base in an embodiment of this utility model. (See attached diagram.) Figure 3 As shown, a second locking assembly 201 is provided on the mounting base 2.

[0039] The motor assembly 3 includes an outer rotor 301 and a stator 302 that is detachable from the outer rotor 301. The outer rotor 301 is mounted in the grille assembly 1 and is used to drive the fan blade assembly 101 to rotate. The stator 302 is fixed to the mounting base 2.

[0040] The first locking assembly 102 and the second locking assembly 201 cooperate with each other. In this embodiment, the first locking assembly 102 and the second locking assembly 201 are preferably single-turn threaded rotary buckles, which are locked together by rotating with each other. In other embodiments, the two can also be fixed together by other feasible and easy-to-disassemble methods, for example, they can be locked together by snap-fit.

[0041] When the first locking assembly 102 and the second locking assembly 201 are installed together, the mesh cover assembly 1 is fixed to the mounting base 2, and the outer rotor 301 is sleeved on the outside of the stator 302 and assembled together with the stator 302, so that the motor assembly 3 can also work normally after the mesh cover assembly 1 is installed as a whole.

[0042] In this embodiment, both the fan blade assembly 101 and the outer rotor 301 used to drive the fan blade assembly 101 to rotate are fixed in the mesh cover assembly 1. The mesh cover assembly 1 can be relatively independently removed from the mounting base 2 as a whole, which also facilitates overall installation, storage, and use. Furthermore, the way the first locking assembly 102 and the second locking assembly 201 are fixed to each other is simple and easy to operate, making the assembly and disassembly of the mesh cover assembly 1 more convenient.

[0043] Figure 4 yes Figure 2 Another perspective of the diagram. Figure 5 This is a schematic diagram of the motor assembly in an embodiment of the present invention. (In conjunction with...) Figure 2 , Figure 4 and Figure 5 As shown, the motor assembly 3 also includes a drive shaft 303. The drive shaft 303 passes through the fan blade assembly 101, and the drive shaft 303 is fixed to the fan blade assembly 101 by means of key connection or other means. The rear end of the drive shaft 303 is exposed in the mesh cover assembly 1 for assembly with the stator 302. It can extend into the stator 302 with oil-impregnated bearing to ensure the concentricity of operation.

[0044] Specifically, such as Figure 4As shown, the fan blade assembly 101 includes a mounting shaft 1011 and a fan blade 1012 fixed to the outside of the mounting shaft 1011. The fan blade 1012 can be fixed to the mounting shaft 1011 by a self-locking structure such as a fastener or a snap-fit, or it can be integrally formed with the mounting shaft 1011. The outer rotor 301 is fixed to the side wall of the inner cavity of the mounting shaft 1011, so when the outer rotor 301 is driven to rotate, it can drive the fan blade 1012 to rotate. A first mounting port 1013 is provided on one side of the mounting shaft 1011, and the stator 302 extends into the outer rotor 301 through the first mounting port 1013 and is assembled with the outer rotor 301.

[0045] The mesh assembly 1 includes a front mesh 103 and a rear mesh 104 detachably connected to the front mesh 103, specifically through a snap-fit ​​or other self-locking structure with similar function. A second mounting port 105 is provided on the rear mesh 104. The stator 302 extends into the outer rotor 301 through the second mounting port 105 and the first mounting port 1013 in sequence, and is assembled with the outer rotor 301.

[0046] Furthermore, a rotating bearing 107 is installed at the center of the front grille 103. The drive shaft 303 passes through the center of the fan blade assembly 101 and is fixed to it. It then passes through the rotating bearing 107 from the inside of the front grille 103 and extends out from the outside. A fastener 106 is fixed to the front end of the drive shaft 303 from the outside of the front grille 103. Specifically, the fastener 106 is a nut, rotatably fixed to the threaded structure at the front end of the drive shaft 303. Since the drive shaft 303 is fixed to the front grille 103 via the rotating bearing 107, when the drive shaft 303 rotates, the inner ring of the rotating bearing 107 rotates accordingly, while the outer ring of the rotating bearing 107 remains stably fixed with the front grille 103. This installation method ensures the rotational center accuracy of the fan blade assembly 101, achieving relative fixation between the fan blade assembly 101 and the front grille 103, and also ensures the high-speed concentric operation of the fan blade assembly 101.

[0047] Preferably, a decorative panel is installed at the outer center of the front grille 103 by means of a snap-fit ​​structure or other detachable fixing structure. When the fan head is working normally, it is used to cover the fastener 106 to keep the appearance of the fan head simple. When it is necessary to disassemble the components of the fan head, the decorative panel can be opened for easy disassembly and assembly.

[0048] Furthermore, a mounting edge protruding from the outside of the rear mesh 104 is provided around the second mounting opening 105, and a first locking assembly 102 is provided on the outer wall of the mounting edge.

[0049] like Figure 2 , Figure 5As shown, the mounting base 2 further includes a rear seat 202 and a front seat 203 fixed to the rear seat 202. Specifically, the front seat 203 and the rear seat 202 can be locked together with screws. The stator 302 is fixed to the front seat 203. A stator housing 304 is also installed on the outside of the stator 302 for protection.

[0050] There is an installation space between the outer side wall of the front seat 203 and the inner side wall of the rear seat 202. The mounting edge of the second mounting port 105 extends into the installation space, so that the first locking assembly 102 is assembled with the second locking assembly 201 provided on the inner side wall of the rear seat 202. At the same time, the stator 302 and the outer rotor 301 are also assembled with each other. The stator 302 can drive the outer rotor 301 to rotate through the magnetic field, thereby driving the fan blade assembly 101 to rotate.

[0051] Figure 6 yes Figure 3 An enlarged schematic diagram of part A. In this embodiment, the first locking assembly 102 and the second locking assembly 201 are single-turn threaded rotary threads, specifically, as shown... Figure 3 , Figure 6 As shown, the second locking assembly 201 is disposed on the inner wall of the rear seat 202 and includes three second locking blocks. Each second locking block includes a slider 2011 and a blocking block 2012. The slider 2011 includes a sliding end 2013 and a terminal 2014. The terminal 2014 is further away from the edge of the rear seat 202 relative to the sliding end 2013. Preferably, there is at least one inclined edge for sliding between the sliding end 2013 and the terminal 2014, so that the second locking assembly 201 as a whole forms a single-turn spiral shape. The blocking block 2012 is located beside the terminal 2014 to indicate that it has been installed in place and to prevent over-rotation. A gap 2015 is provided beside the sliding end 2013 to separate two adjacent second locking blocks, and the gap 2015 serves as an insertion port for the first locking block.

[0052] Combined Figure 2 , Figure 4 Corresponding to the second locking assembly 201, the first locking assembly 102 includes three first locking blocks. Each first locking block also has an inclined edge corresponding to the slider 2011. During installation, the position of the rear mesh 104 is adjusted so that the first locking blocks are inserted through the gap 2015. Then, the rear mesh 104 is rotated so that the first locking blocks slide smoothly into the rear seat 202 at their insertion ends 2013 while rotating, until they stop at the blocking block 2012. At this point, the mesh assembly 1 and the mounting base 2 are assembled together.

[0053] Figure 7 This is a schematic diagram of the fan structure in an embodiment of this utility model. (See attached diagram.) Figure 7 As shown, this embodiment of the invention also discloses a fan, which is equipped with the fan head described in the above embodiment. Figure 7 As can be seen, there is a disassembly port 108 on the outer side of the front grille 103, from which the drive shaft 303 extends. Fasteners 106 are installed at the front end of the drive shaft 303, serving to position and fix it. A decorative panel can be covered on the disassembly port 108, but the decorative panel is not shown in the figure.

[0054] Furthermore, the fan also includes a base assembly 5. A connecting structure is provided on the rear seat 202. The rear seat 202 is mounted to the base assembly 5 via the connecting structure.

[0055] In this embodiment, the fan is a folding fan, and the base assembly 5 includes a chassis 501. A receiving cavity 503 is provided on the chassis 501. The bottom end of the support rod 502 is installed on one side of the receiving cavity 503 through a first rotating structure, so that the support rod 502 can rotate around the first rotating structure in a direction perpendicular to the upper surface of the chassis 501, or rotate to be parallel to the chassis 501 and placed in the receiving cavity 503.

[0056] In this embodiment, a vertically penetrating receiving groove 204 is also provided on the rear side of the rear seat 202. The top end of the support rod 502 is installed between the groove walls of the receiving groove 204 through a second rotating structure, so that the rear seat 202 can rotate relative to the top end of the support rod 502. The rotation range is from the support rod 502 being approximately parallel to the fan head and extending from the first end of the receiving groove 204, to the support rod 502 being approximately parallel to the fan head and extending from the second end of the receiving groove 204.

[0057] When the fan is working, the bottom end of the support rod 502 rotates around the first rotating structure relative to the chassis 501 to the upper surface of the chassis 501. The fan head rotates around the top end of the support rod 502 to a position that is approximately parallel to the support rod 502 and extends out from the first end of the receiving groove 204. At this time, the fan head is approximately perpendicular to the chassis 501. Of course, the rotation angle of the two rotating structures can also be adjusted to adjust the air outlet range.

[0058] When the fan needs to be stored, the bottom end of the support rod 502 rotates around the first rotating structure until it is flush against the bottom of the receiving cavity 503. The fan head can then rotate around the second rotating structure until the support rod 502 is approximately parallel to the fan head and extends out from the second end of the receiving slot 204. At this time, the fan head is approximately parallel to the chassis 501. Preferably, the rear end of the rear seat 202 is designed to fit completely into the receiving cavity 503, achieving storage of the entire fan in the smallest possible volume.

[0059] Since the mesh cover assembly 1 is a whole in the embodiment, it can be easily removed from the base 2. Therefore, the mesh cover assembly 1 can also be easily removed and stored separately to prevent dust from falling onto the fan blade assembly 101.

[0060] certainly, Figure 7The illustration shown is only one embodiment. Those skilled in the art will know that the fan head disclosed in this embodiment can also be installed on the base assembly of a floor fan, oscillating fan, or other fan, simply by changing the connection form between the support rod 502 and the rear seat 202.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fan head, characterized by, The fan head comprises: a net cover assembly comprising a fan blade assembly and a first lock assembly; a mounting base provided with a second lock assembly; a motor assembly comprising an outer rotor and a stator detachably connected to the outer rotor; the outer rotor is mounted in the net cover assembly for driving the fan blade assembly to rotate; the stator is fixed to the mounting base; when the first lock assembly and the second lock assembly are installed in cooperation, the outer rotor is sleeved outside the stator and assembled with the stator.

2. The fan head of claim 1, wherein, The motor assembly further comprises a transmission shaft; the fan blade assembly is fixed to the transmission shaft; the net cover assembly comprises a front net and a transmission bearing; the outer ring of the transmission bearing is fixed to the front net, and the inner ring of the transmission bearing is fixed to the transmission shaft and can rotate with the transmission shaft.

3. The fan head of claim 2, wherein, After the transmission shaft passes through the center of the fan blade assembly and is fixed to the fan blade assembly, the transmission shaft passes through the rotary bearing from the inner side of the front net and extends out from the outer side of the front net; a fastener is fixed to the front end of the transmission shaft from the outer side of the front net cover.

4. The fan head of claim 2, wherein, The rear end of the transmission shaft is exposed to the net cover assembly for assembly with the stator.

5. The fan head of claim 1, wherein, The net cover assembly comprises a front net and a rear net detachably connected to the front net; a second installation opening is formed in the rear net; the stator extends into the outer rotor ring through the second installation opening and is assembled with the outer rotor.

6. The fan head of claim 1, wherein, The fan blade assembly comprises a mounting shaft and a fan blade fixed to the outer side wall of the mounting shaft; the outer rotor is fixed to the inner side wall of the mounting shaft; a first installation opening is formed in one side of the mounting shaft; the stator extends into the outer rotor ring through the first installation opening and is assembled with the outer rotor.

7. The fan head of claim 1, wherein, The mounting base comprises a rear seat and a front seat fixed to the rear seat; the stator is fixed to the front seat; there is an installation space between the outer side wall of the front seat and the inner side wall of the rear seat, and the first lock assembly is assembled with the second lock assembly arranged on the inner side wall of the rear seat through the installation space.

8. The fan head of claim 7, wherein, The second lock assembly comprises a plurality of second lock blocks; the second lock block comprises a sliding block and a blocking block; The first lock assembly comprises a plurality of first lock blocks; The sliding block comprises a sliding end and a terminal end; the sliding end and the terminal end have an inclined edge therebetween, so that the plurality of second lock blocks form a single-ring thread shape; the blocking block is located beside the terminal end; a gap is formed beside the sliding end to separate adjacent second lock blocks and serve as an insertion opening of the first lock block.

9. A fan provided with a fan head as claimed in any one of claims 1-8, characterized in that The fan further comprises a base assembly; the mounting base comprises a rear seat; a connecting structure is arranged on the rear seat; the rear seat is mounted to the base assembly through the connecting structure.

10. The fan of claim 9, wherein: A receiving groove is formed in the rear end of the rear seat; the base assembly comprises a bottom plate, a support rod and a receiving cavity formed in the bottom plate; the receiving cavity is sized to accommodate the rear end of the rear seat; the bottom end of the support rod is mounted to one side of the receiving cavity through a first rotating structure, so that the support rod can be rotated about the first rotating structure to be perpendicular to the bottom plate or parallel to the bottom plate and placed in the receiving cavity; The top end of the support rod is installed in the accommodating groove through a second rotating structure and can rotate in the accommodating groove to extend out from the slot at any end of the accommodating groove.

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