CN215672824U - Shaftless fan - Google Patents

Abstract

A shaftless fan comprises a base, a telescopic rod, a swinging mechanism, a fan blade rear cover, a fan blade front cover, an outer rotor motor, fan blades and a control assembly; the swinging mechanism comprises a swinging assembly, a second box body and a battery pack, and the swinging assembly and the battery pack are respectively arranged in the second box body; one end of the telescopic rod is connected to the base, the other end of the telescopic rod is connected to the swinging assembly, the second box body is installed on the outer side of the fan blade rear cover, an outer rotor motor is installed on the inner side of the fan blade rear cover, fan blades are installed on the outer periphery of the outer rotor motor in a sleeved mode, the fan blade front cover is installed on the fan blade rear cover, a first installation hole is formed in the middle of the fan blade front cover, a control assembly is installed in the first installation hole, and the control assembly is electrically connected to the outer rotor motor and the swinging assembly respectively; the utility model provides a shaftless fan according to the above, which solves the problems of low utilization rate of the internal space of the fan and limitation of an external power supply in the prior art.

Description

Shaftless fan

Technical Field

The utility model relates to the technical field of fans, in particular to a shaftless fan.

Background

An electric fan, also called fan and fanner, is a household electrical appliance which uses an electric motor to drive fan blades to rotate so as to accelerate the circulation of air, and is mainly used for cooling and relieving summer heat and circulating air. The product is widely used in places such as families, classrooms, offices, shops, hospitals, hotels and the like.

The use of the fan is limited under the influence of an external power supply, and the requirements of people cannot be met, such as the situation that the fan is far away from a power socket or power failure occurs; in addition, the prior art fan still needs to occupy a large space when not in use.

Disclosure of Invention

The utility model aims to provide a shaftless fan, which solves the problems that the utilization rate of the internal space of the fan is low and the fan is limited by an external power supply in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a shaftless fan comprises a base, a telescopic rod, a swinging mechanism, a fan blade rear cover, a fan blade front cover, an outer rotor motor, fan blades and a control assembly;

the swing mechanism comprises a swing assembly, a second box body and a battery pack, and the swing assembly and the battery pack are respectively arranged in the second box body;

one end of the telescopic rod is connected to the base, the other end of the telescopic rod is connected to the swinging assembly, the second box body is installed on the outer side of the fan blade rear cover, the outer rotor motor is installed on the inner side of the fan blade rear cover, the fan blades are installed on the outer periphery of the outer rotor motor in a sleeved mode, the fan blade front cover is installed on the fan blade rear cover, a first installation hole is formed in the middle of the fan blade front cover, the control assembly is installed on the first installation hole, and the control assembly is electrically connected to the outer rotor motor and the swinging assembly respectively;

one end of the telescopic rod is detachably mounted on the swinging assembly, the other end of the telescopic rod is detachably mounted on the base, the telescopic rod can be extended or shortened along the length direction of the telescopic rod, and the base is provided with a storage part used for storing the shortened telescopic rod.

Further, the swing assembly comprises a micro motor, a second gear, a third gear, a rotating rod and a rod sleeve;

the one end of rod cover connect in the telescopic link, the other end of rod cover connect in the second box body, the one end of dwang is arranged in the rod cover, self axial lead rotation can be followed to the dwang, the other end of dwang penetrates the inside of box body, just the other end of dwang is installed the third gear, the micro motor electricity is connected in the mechanism, micro motor's output connect in the second gear, the second gear meshing in the third gear.

Specifically, the control assembly comprises a knob, a PCB and a touch panel, the knob and the touch panel are arranged in the first mounting hole, the knob can rotate along the center of the knob, the PCB is mounted on the back side of the touch panel and is electrically connected to the touch panel, the outer rotor electronic and swinging assembly, a through hole penetrates through the middle of the outer rotor motor, the knob is used for adjusting the wind speed of the shaftless fan, and the touch panel is used for selecting the working mode of the shaftless fan and controlling the switch of the shaftless fan.

In some embodiments, the control assembly further comprises a control box body, a first gear, a rotating part and a gear rod, the control box body is mounted in the first mounting hole, the control box body is located between the outer rotor motor and the knob, a mounting column protrudes from the inside of the control box body, the rotating part is mounted on the mounting column, and an antenna of the rotating part abuts against the PCB;

one end of the gear rod penetrates through the PCB and is connected with the rotating piece, the other end of the gear rod is provided with the first gear, an annular rack is arranged on the inner side of the knob, the first gear is meshed with the annular rack, a fixing column is arranged on the back of the touch panel, and the fixing column penetrates through the PCB and is connected with the control box body.

Preferably, the surface of the knob is provided with anti-slip lines.

Further, the base includes chassis and top cap, top cap demountable installation in the chassis, be equipped with in the chassis accomodate the portion.

Specifically, a groove rail is arranged on the outer side of the surrounding edge of the chassis, a clamping block is arranged on the inner side of the top cover, and the clamping block can move along the length direction of the groove rail.

Preferably, the rear side of the second box body is provided with a threaded hole, the base is provided with a stud, and the stud can be mounted in the threaded hole.

In some embodiments, the second box body is hinged to the fan blade rear cover, the fan blade rear cover can swing up and down along the hinged position, and the second box body is provided with a swing opening;

still including adjusting the damping, adjust damped one end and pass the swing mouth connect in the flabellum back shroud, adjust damped other end connect in the second box body, it can follow to adjust the damping the length direction swing of swing mouth.

Compared with the prior art, one of the technical schemes has the following beneficial effects:

1. the shaftless fan is not influenced by an external power supply through the battery pack, and can normally work even under the condition of no external power supply, so that the effect of improving the universality of the shaftless fan is achieved;

2. through the telescopic structure of the telescopic rod, the height position of the shaftless fan can be adjusted through the telescopic rod, and the effect of improving the universality of the shaftless fan is achieved;

3. through the detachable type of telescopic link, the telescopic link that will dismantle can be placed in the portion of accomodating of base, need not to place in other places, prevents to lose, when needing the equipment, takes out the telescopic link from the portion of accomodating again, reaches the effect that improves base space utilization.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a blade back cover according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a telescoping pole according to one embodiment of the present invention;

fig. 4 is a schematic structural view of an outer rotor motor according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a cross-sectional view of a control mechanism according to one embodiment of the present invention;

FIG. 6 is a schematic view of a fan blade front cover according to an embodiment of the present invention;

FIG. 7 is a schematic view of a first mounting hole of one embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a swing assembly in accordance with one embodiment of the present invention;

fig. 9 is a schematic structural view of a battery pack according to one embodiment of the present invention;

FIG. 10 is a schematic structural view of a stud according to one embodiment of the present invention;

FIG. 11 is a schematic structural view of a receiving portion according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of the structure of a card package of one embodiment of the present invention;

wherein: the base 1, the chassis 11, the accommodating groove 111, the bearing 1111, the clamping piece 1112, the groove rail 112, the top cover 12, the clamping block 121, the stud 13, the telescopic rod 2, the swing mechanism 3, the second box 31, the threaded hole 311, the swing opening 312, the micro motor 32, the second gear 33, the third gear 34, the rotating rod 35, the rod sleeve 36, the battery pack 37, the fan blade rear cover 4, the fan blade front cover 5, the first mounting hole 51, the outer rotor motor 6, the through hole 61, the fan blade 7, the control component 8, the control box 81, the mounting post 811, the knob 82, the second mounting hole 821, the anti-skid thread 822, the annular toothed rail 83, the first gear 84, the rotating piece 85, the PCB 86, the touch panel 87, the fixing post 871 and the gear rod 88.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In an embodiment of the present invention, as shown in fig. 1 to 12, a shaftless fan includes a base 1, a telescopic rod 2, a swing mechanism 3, a fan blade rear cover 4, a fan blade front cover 5, an external rotor motor 6, a fan blade 7, and a control assembly 8; the swing mechanism 3 comprises a swing assembly 301, a second box 31 and a battery pack 37, wherein the swing assembly 301 and the battery pack 37 are respectively installed inside the second box 31; one end of the telescopic rod 2 is connected to the base 1, the other end of the telescopic rod 2 is connected to the swing assembly 301, the second box 31 is mounted on the outer side of the fan blade rear cover 4, the outer rotor motor 6 is mounted on the inner side of the fan blade rear cover 4, the fan blades 7 are mounted on the outer periphery of the outer rotor motor 6 in a sleeved mode, the fan blade front cover 5 is mounted on the fan blade rear cover 4, a first mounting hole 51 is formed in the middle of the fan blade front cover 5, the control assembly 8 is mounted in the first mounting hole 51, and the control assembly 8 is electrically connected to the outer rotor motor 6 and the swing assembly 301 respectively; one end of the telescopic rod 2 is detachably mounted on the swinging component 301, the other end of the telescopic rod 2 is detachably mounted on the base 1, the telescopic rod 2 can be extended or shortened along the length direction, and the base 1 is provided with a storage part 111 for storing the shortened telescopic rod 2. When the shaftless fan is assembled, specifically, the swing assembly 301 and the battery pack 37 are placed inside the second box 31, one end of the telescopic rod 2 is installed on the base 1, the other end of the telescopic rod 2 is connected to the swing assembly 301, then the outer rotor motor 6 is installed on the inner side of the fan blade rear cover 4, the fan blades 7 are installed on the periphery of the outer rotor motor 6 in a sleeved manner, then the control assembly 8 is installed on the first installation hole 51 of the fan blade front cover 5, then the fan blade front cover 5 is installed on the fan blade rear cover 4, in this embodiment, the battery pack 37 is installed inside the second box 31, the battery pack 37 is electrically connected to the swing assembly 301, the outer rotor motor 6 and the control assembly 8 respectively, and the battery pack 37 can provide electric power for the swing assembly 301, the outer rotor motor 6 and the control assembly 8, the shaftless fan is not influenced by an external power supply, and can normally work even under the condition of no external power supply; in addition, the telescopic rod 2 is of a telescopic structure, and the height position of the shaftless fan can be adjusted through the telescopic rod 2, so that the effect of improving the universality of the shaftless fan is achieved. Because the telescopic link 2 is detachable, when the shaftless fan is not in use, the telescopic link 2 to be detached can be placed in the accommodating part 111 of the base 1, and does not need to be placed in other places to prevent loss, and when the fan is required to be assembled, the telescopic link 2 is taken out of the accommodating part 111, so that the effect of improving the space utilization rate of the base 1 is achieved.

As shown in fig. 8-9, the swing assembly 301 comprises a micro motor 32, a second gear 33, a third gear 34, a rotating rod 35 and a rod sleeve 36; one end of the rod sleeve 36 is connected to the telescopic rod 2, the other end of the rod sleeve 36 is connected to the second box body 31, one end of the rotating rod 35 is arranged in the rod sleeve 36, the rotating rod 35 can rotate along the axis of the rotating rod 35, the other end of the rotating rod 35 penetrates into the box body 31, and the third gear 34 is installed at the other end of the rotating rod 35; the micro motor 32 is electrically connected to the mechanism 8, an output end of the micro motor 32 is connected to the second gear 32, and the second gear 32 is meshed with the third gear 34. In this embodiment, the during operation of swing subassembly 301, specifically be control assembly 8 transmits the signal of telecommunication for micro motor 32, micro motor 32 is according to control assembly 8's program drive second gear 32 rotates corresponding stroke, because second gear 32 meshes in third gear 34, thereby drives third gear 34 rotates, third gear 34 drives dwang 35 is in the rod cover 36 internal rotation, thereby makes flabellum back shroud 4 swings, through gear drive's mode, improves transmission efficiency and transmission stability, reaches the improvement flabellum back shroud 4 swing stability's effect.

As shown in fig. 5, the control assembly 8 includes a knob 82, a PCB 86 and a touch panel 87, the knob 82 and the touch panel 87 are disposed in the first mounting hole 51, the knob 82 can rotate along its center, the PCB 86 is mounted on the back side of the touch panel 87, the PCB 86 is electrically connected to the touch panel 87, the outer rotor motor 6 and the swing assembly 301, respectively, a through hole 61 penetrates through the middle of the outer rotor motor 6, the knob 82 is used for adjusting the wind speed of the shaftless fan, and the touch panel 87 is used for selecting the operating mode of the shaftless fan and controlling the switch of the shaftless fan. In the present embodiment, there are two mounting manners of the knob 82 and the touch panel 87, for example, a second mounting hole 821 is provided in the middle of the knob 82, and the touch panel 87 is mounted in the second mounting hole 821; or the knob 82 may be attached to the touch panel 87. In operation, the switch buttons on the touch panel 87 are touched, because the PCB board 86 is electrically connected to the touch panel 87, the outer rotor electronics 6 and the swing assembly 301, the PCB board 86 receives information of the touch panel 87 through a wire, one end of which is electrically connected to the PCB board 86, the other end of the lead is connected to the rear end of the outer rotor motor 6 through the through hole 61, then the PCB 86 controls the external rotor motor 6 to start working, the external rotor motor 6 drives the fan blades 7 to rotate, in this embodiment, the touch panel 87 is provided with four touch buttons, which are a switch button, a wind speed adjusting button, a timing mode button and a swing button, and when the wind speed needs to be adjusted, the wind speed adjusting button is touched, the touch panel 87 displays the wind speed, and the wind speed can be controlled by rotating the knob 82; when the fan blade needs to swing left and right, the PCB 86 controls the swing assembly 301 to start working, so that the fan blade rear cover 4 starts to swing left and right; in this embodiment, the through holes 61 respectively arrange the wires connecting the PCB 86 to the rear side of the outer rotor motor 6 and the wires connecting the PCB 86 to the swing assembly 301 in a unified manner, and the control assembly 8 is disposed at the front side of the outer rotor motor 6, which not only reduces the requirement for the length of the wires, but also overcomes the problems of complicated wiring and easy winding of the wires of the shaftless fan.

As shown in fig. 5, the control assembly 8 further includes a control box 81, a first gear 84, a rotating member 85, and a gear lever 88; the control box body 81 is mounted in the first mounting hole 51, the control box body 81 is located between the outer rotor motor 6 and the knob 82, a mounting column 811 protrudes from the inside of the control box body 81, the rotating member 85 is mounted on the mounting column 811, and an antenna of the rotating member 85 abuts against the PCB 86; one end of the gear rod 88 penetrates through the PCB 86 to be connected to the rotating member 85, the other end of the gear rod 88 is provided with the first gear 84, an annular rack 83 is arranged on the inner side of the knob 82, and the first gear 84 is meshed with the annular rack 83; the back of the touch panel 87 is provided with a fixing column 871, and the fixing column 871 penetrates through the PCB 86 to be connected to the control box 81. In this embodiment, the knob 82 and the annular rack 83 are integral, the knob 82 is a suspended member, the control box body 81 and the touch panel 87 are connected and erected, when the wind speed needs to be adjusted, specifically, the knob 82 is twisted, the knob 82 drives the annular rack 83 to rotate, thereby rotating the rotation member 85 on the mounting post 811, allowing the antenna of the rotation member 85 to touch the line of the PCB board 86 corresponding to the wind speed, so that the PCB 86 can drive the outer rotor motor 6 to output corresponding power, so that the wind speed of the shaftless fan can be adjusted, since the PCB board 86 is mounted on the rear side of the touch panel 87, the touch panel 87 is fixed to the control case 81 by the fixing posts 871, therefore, when the knob 82 and the annular rack 83 are rotated, the touch panel 87 and the PCB 86 can be kept stationary.

As shown in fig. 4, the surface of the knob 82 is provided with anti-slip threads 822. In this embodiment, the outer surface of the knob 82 is provided with the anti-slip threads 822, so that the knob 82 can be twisted to be more convenient and labor-saving, and is not easy to slip.

As shown in fig. 10 to 12, the base 1 includes a bottom plate 11 and a top cover 12, the top cover 12 is detachably mounted on the bottom plate 11, and the receiving portion 111 is provided in the bottom plate 11. The structure of the storage part 111 is specifically as shown in fig. 11, and it includes two carriers 1111 and two clamping pieces 1112, when the shaftless fan is not used, the telescopic rod 2 can be stored in the storage part 111, the space utilization of the shaftless fan can be realized, and the fan is not easy to be lost; in addition, children can be prevented from taking the telescopic rod 2 to play, potential safety hazards are reduced, and the effect of improving the safety of the shaftless fan is achieved.

As shown in fig. 10-12, a groove rail 112 is provided on the outer side of the peripheral edge of the bottom plate 11, and a clamping block 121 is provided on the inner side of the top cover 12, wherein the clamping block 121 can move along the length direction of the groove rail 112. In this embodiment, when the base 1 is detached, the top cover 12 is twisted, and the clamping block 121 of the top cover 12 moves on the slot rail 112 of the chassis 11, specifically, the clamping block 121 moves from the tail end of the slot rail 112 to the head end of the slot rail 112 until the clamping block 121 comes out of the slot rail 112; when the base 1 is installed, the clamping block 121 is arranged at the head end of the grooved rail 112, then the top cover 12 is twisted, the clamping block 121 of the top cover 12 moves along the length direction of the grooved rail 112 until the clamping block 121 moves to the tail end of the grooved rail 112, the assembling and disassembling mode is simple and rapid, and the effect of improving the assembling and disassembling efficiency of the base 1 is achieved.

As shown in fig. 2 and 10, a threaded hole 311 is formed at the rear side of the second container 31, and the base 1 is provided with a stud 13, and the stud 13 can be mounted in the threaded hole 311. In this embodiment, the rear side of the second box 31 is provided with the threaded hole 311, the base 1 is provided with the stud 13, and when the telescopic rod 2 is completely disassembled, the base 1 and the second box 31 can be assembled, specifically, the stud 13 is twisted into the threaded hole 311, so that the shaftless fan is convenient to carry, and the effect of improving the portability of the shaftless fan is achieved.

As shown in fig. 8-9, the second box 31 is hinged to the fan blade rear cover 4, the fan blade rear cover 4 can swing up and down along the hinged portion, the second box 31 is provided with a swing opening 312, the device further comprises an adjusting damper, one end of the adjusting damper passes through the swing opening 312 and is connected to the fan blade rear cover 4, the other end of the adjusting damper is connected to the second box 31, and the adjusting damper can swing along the length direction of the swing opening 312. In this embodiment, the second box 31 is hinged to the fan blade rear cover 4, so that the fan blade rear cover 4 can swing along the length direction of the swing opening 312, the shaftless fan can supply air at multiple angles, and the effect of improving the universality of the shaftless fan is achieved; when the angle of the fan blade rear cover 4 is adjusted, the fan blade rear cover 4 can be fixed by adjusting the damping, so that the fan blade rear cover 4 is fixed and cannot swing easily, and the effect of improving the structural stability of the shaftless fan is achieved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A shaftless fan, characterized by: the fan blade motor comprises a base, a telescopic rod, a swinging mechanism, a fan blade rear cover, a fan blade front cover, an outer rotor motor, fan blades and a control assembly;

the swing mechanism comprises a swing assembly, a second box body and a battery pack, and the swing assembly and the battery pack are respectively arranged in the second box body;

one end of the telescopic rod is connected to the base, the other end of the telescopic rod is connected to the swinging assembly, the second box body is installed on the outer side of the fan blade rear cover, the outer rotor motor is installed on the inner side of the fan blade rear cover, the fan blades are installed on the outer periphery of the outer rotor motor in a sleeved mode, the fan blade front cover is installed on the fan blade rear cover, a first installation hole is formed in the middle of the fan blade front cover, the control assembly is installed on the first installation hole, and the control assembly is electrically connected to the outer rotor motor and the swinging assembly respectively;

one end of the telescopic rod is detachably mounted on the swinging assembly, the other end of the telescopic rod is detachably mounted on the base, the telescopic rod can be extended or shortened along the length direction of the telescopic rod, and the base is provided with a storage part used for storing the shortened telescopic rod.

2. A shaftless fan in accordance with claim 1, wherein: the swing assembly comprises a micro motor, a second gear, a third gear, a rotating rod and a rod sleeve;

the one end of rod cover connect in the telescopic link, the other end of rod cover connect in the second box body, the one end of dwang is arranged in the rod cover, self axial lead rotation can be followed to the dwang, the other end of dwang penetrates the inside of box body, just the other end of dwang is installed the third gear, the micro motor electricity is connected in the mechanism, micro motor's output connect in the second gear, the second gear meshing in the third gear.

3. A shaftless fan in accordance with claim 1, wherein: the control assembly comprises a knob, a PCB and a touch panel, the knob and the touch panel are arranged in the first mounting hole, the knob can rotate along the center of the knob, the PCB is mounted on the back side of the touch panel and is electrically connected to the touch panel, the outer rotor electronic and swinging assembly respectively, a through hole penetrates through the middle of the outer rotor motor, the knob is used for adjusting the wind speed of the shaftless fan, and the touch panel is used for selecting the working mode of the shaftless fan and controlling the switch of the shaftless fan respectively.

4. A shaftless fan in accordance with claim 3, wherein: the control assembly further comprises a control box body, a first gear, a rotating part and a gear rod, the control box body is installed in the first installation hole, the control box body is located between the outer rotor motor and the knob, an installation column is arranged on the inner protrusion of the control box body, the rotating part is installed on the installation column, and a feeler of the rotating part abuts against the PCB;

one end of the gear rod penetrates through the PCB and is connected with the rotating piece, the other end of the gear rod is provided with the first gear, an annular rack is arranged on the inner side of the knob, the first gear is meshed with the annular rack, a fixing column is arranged on the back of the touch panel, and the fixing column penetrates through the PCB and is connected with the control box body.

5. A shaftless fan in accordance with claim 3, wherein: the surface of the knob is provided with anti-skid grains.

6. A shaftless fan in accordance with claim 1, wherein: the base comprises a base plate and a top cover, the top cover is detachably mounted on the base plate, and the containing portion is arranged in the base plate.

7. A shaftless fan in accordance with claim 6, wherein: the outer side of the surrounding edge of the chassis is provided with a groove rail, the inner side of the top cover is provided with a clamping block, and the clamping block can move along the length direction of the groove rail.

8. A shaftless fan in accordance with claim 1, wherein: the rear side of the second box body is provided with a threaded hole, the base is provided with a stud, and the stud can be mounted in the threaded hole.

9. A shaftless fan in accordance with claim 1, wherein: the second box body is hinged to the fan blade rear cover, the fan blade rear cover can swing up and down along the hinged position, and the second box body is provided with a swing opening;

still including adjusting the damping, adjust damped one end and pass the swing mouth connect in the flabellum back shroud, adjust damped other end connect in the second box body, it can follow to adjust the damping the length direction swing of swing mouth.

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