CN111648989A - Bladeless fan - Google Patents

Abstract

The invention relates to a bladeless fan which comprises a base, a nozzle assembly arranged on the base and a rotating assembly connected with the base and the nozzle assembly, wherein the nozzle assembly is fixed on the rotating assembly, the rotating assembly comprises a rotating support frame connected with the base and the nozzle assembly, the rotating assembly and the nozzle assembly can rotate around a central shaft relative to the base, and an air inlet and a filtering assembly used for filtering the inlet air are arranged on the base, so that a motor for driving the rotating motor is low in power consumption, the nozzle assembly can rotate by adopting a small driving force, the structure of the bladeless fan is simple, and the user experience can be improved.

Description

Bladeless fan

technical field

The invention relates to the field of fans, in particular to a bladeless fan.

Background technique

The traditional home fan is a bladed fan. Generally, the motor drives the blades to rotate to accelerate the flow speed of the surrounding air, so as to achieve the effect of cooling and relieving the heat and circulating the air. The blades of the bladed fan rotate at a high speed during operation. There are certain security risks. Compared with traditional electric fans with blades, bladeless fans have the characteristics of low noise and good safety. The bladeless fan blows the air from the outside of the fan through the wind wheel assembly to generate high-speed air flow from the nozzle assembly. In order to adjust the air outlet direction of the bladeless fan, a rotating assembly is set on the base of the bladeless fan, thereby driving the nozzle fixed on it. The assembly and the wind wheel assembly rotate relative to the base synchronously. However, the rotating component of the existing bladeless fan is located at the bottom, and both the air intake component for air intake and the filter component for filtering airflow are arranged on the rotating component and rotate synchronously, and the power consumption of the motor driving the rotation is large.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a bladeless fan with low power consumption, which can realize the rotation of the nozzle assembly with a small driving force.

In order to achieve the above object, the present invention provides the following technical solutions: a bladeless fan, comprising a base, a nozzle assembly arranged on the base, and a rotating assembly connecting the base and the nozzle assembly, the The nozzle assembly is fixed on the rotating assembly, the rotating assembly includes a rotating support frame connecting the base and the nozzle assembly, and the rotating assembly and the nozzle assembly are rotatable relative to the base around a central axis.

Further, the bladeless fan further comprises a driving member for providing power and a transmission assembly for transmitting the power to the nozzle assembly, the transmission assembly being arranged between the base and the nozzle assembly, the The nozzle assembly is rotated relative to the base through the transmission assembly.

Further, the transmission assembly includes a pinion gear arranged on the driving member and a ring gear fixed on the base, and the pinion gear meshes with the ring gear.

Further, the driving member is mounted on the rotating support frame.

Further, the driving member is a motor having an output shaft, and the pinion gear is sleeved on the output shaft.

Further, the bladeless fan further includes a wind wheel assembly disposed on the rotating assembly, a shock absorbing coil is arranged between the wind wheel assembly and the rotating support frame, and the shock absorbing coil is It includes a fixing part fixed in the wind wheel assembly and a shock absorbing part clamped between the wind wheel assembly and the rotating support frame, the fixing part and the shock absorbing part are integrally formed, and the shock absorbing part is integrally formed. The shock-absorbing member and the rotating support frame are connected by a connecting member, and the connecting member and the shock-absorbing member jointly limit the circumferential rotation of the wind wheel assembly relative to the rotating support frame.

Further, the base is provided with a nozzle lock frame for limiting the rotation support frame, the nozzle lock frame and the base form a limit space, and one end of the rotation support frame is set at the limit position. space to be fixed on the base.

Further, a contact is provided on one of the base and the rotating assembly, and a conductive ring is provided on the other of the base and the rotating assembly, and the contact is connected to the conductive ring. The end faces are in electrical contact, and the contacts are electrically connected to the motor.

Further, the conductive ring includes a positive conductive ring and a negative conductive ring, the contacts include a positive contact and a negative contact, the positive conductive ring is in electrical contact with the end face of the positive contact, and the negative conductive ring is in contact with the end surface of the positive contact. The end faces of the negative contacts are in electrical contact.

Further, the ring gear is provided with a groove, a magnet is installed in the groove, and a centering Hall PCBA board and a limit Hall PCBA board opposite to the magnet are installed on the rotating support frame. .

The beneficial effects of the present invention are: the rotating assembly and the nozzle assembly of the bladeless fan shown in the present invention can rotate relative to the base around the central axis, and the air inlet and the filter assembly for filtering the incoming air are arranged on the base, thereby, The power consumption of the motor that drives the rotation is small, and the nozzle assembly can be rotated by using a small driving force. The bladeless fan has a simple structure and can improve user experience.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, and implement it according to the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings.

Description of drawings

1 is a schematic diagram of an overall explosion of a bladeless fan according to an embodiment of the present invention;

2 is a cross-sectional view of the bladeless fan in FIG. 1;

Fig. 3 is the structural representation of the base in Fig. 1;

4 is a schematic structural diagram of the base in FIG. 1 in a first direction;

5 is a schematic structural diagram of the base in FIG. 1 in the second direction;

6 is a schematic structural diagram of the base in FIG. 1 in a third direction;

7 is a schematic structural diagram of the base in FIG. 1 in a fourth direction;

Figure 8 is a cross-sectional view of the base and screen assembly of Figure 1 in another direction;

Fig. 9 is an enlarged view of area A in Fig. 8;

Fig. 10 is the structural representation of the side strip in Fig. 1;

Figure 11 is an exploded view of the rotating assembly in Figure 1;

FIG. 12 is a schematic structural diagram of the rotating support frame and the second driving member in FIG. 1;

FIG. 13 is a schematic structural diagram of the rotating support frame in another direction in FIG. 1;

Figure 14 is a cross-sectional view of the rotating assembly, base and screen assembly in Figure 1;

FIG. 15 is a schematic structural diagram of the shock absorbing member in FIG. 1;

Fig. 16 is an enlarged view of area B in Fig. 14;

FIG. 17 is a schematic structural diagram of the conductive component in FIG. 1 .

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated mechanism or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

The bladeless fan in a preferred embodiment of the present invention can generate one or more of dehumidifying air flow, humidifying air flow, purifying air flow, filtering air flow, cooling air flow and heating air flow. The air flow generated and delivered by the fan is defined. 1 and 2 , the bladeless fan includes the following components: a base 7 , a nozzle assembly 100 disposed on the base 7 , a rotating assembly 8 connecting the base 7 and the nozzle assembly 100 , a nozzle assembly 8 surrounding the base 7 The filter screen assembly 9 above, the wind wheel assembly 200 disposed on the rotating assembly 8 , and the deflector assembly 6 , the main bracket assembly 5 , and the top shell assembly 4 disposed on the base 7 . Wherein, the deflector assembly 6 , the main support assembly 5 , the top shell assembly 4 , the rotating assembly 8 , the wind wheel assembly 200 and the nozzle assembly 100 on the base 7 are rotatable relative to the base 7 around the central axis. In this embodiment, , the deflector assembly 6 , the main bracket assembly 5 , the top shell assembly 4 , the rotating assembly 8 , the wind wheel assembly 200 and the nozzle assembly 100 can form an integrated nozzle and rotate synchronously.

Referring to FIGS. 2 to 4 , a base 71 is provided below the base 7 to fix the bladeless fan on the contact surface. The base 71 includes a base casing 711 and a plurality of foot pads 712 arranged on the base casing 711 . The base case 711 is of a similar circular structure, including a bottom case 713 and a side case 714 extending outward from the bottom case 713 , the bottom case 713 is a circular structure, and the bottom case 713 and the side case 714 are enclosed to form a receiving space . The bottom case 713 is provided with a number of cylindrical holes 7131. In this embodiment, the number of the cylindrical holes 7131 is six, and the six cylindrical holes 7131 are arranged at equal intervals in the circumferential direction. The specific quantity is limited. The foot pads 712 may be made of rubber materials, but are not limited to rubber materials, which are not listed here. The number of the foot pads 712 is the same as the number of the cylindrical holes 7131. One end of each foot pad 712 is fixed in the cylindrical hole 7131. The foot pad 712 can be fixed by screws, which is not specifically limited here. The surface of the other end is provided with a thread for increasing the friction force. When the base 71 is placed on the ground or a desktop, the foot pad 712 plays the role of supporting, buffering and shock absorption, and the threaded surface of the foot pad 712 increases the foot pad. The friction between the 712 and the contact surface increases the stability of the bladeless fan. An annular shell 7132 with an opening is formed on the inner wall of the bottom shell 713 and protrudes outward from the bottom shell 713. The annular shell 7132 is closer to the center of the bottom shell 713 than the cylindrical hole 7131. A plurality of sixth fixing columns 715, specifically, the number of the sixth fixing columns 715 is four and is evenly distributed in the annular shell 7132. The sixth fixing columns 715 and the bottom shell 713 can be integrally formed, and the sixth fixing column is not used here. The specific number and location of the 715 are specifically limited. The sixth fixing column 715 and the bottom case 713 can also be detachably connected, which is not specifically limited here. An opening 7141 is formed on the side shell 714, and the cable located in the bladeless fan can be connected to the outside through the opening 7141.

Please refer to FIG. 4 to FIG. 7 , the base 7 includes a main body shell 72 and a base cavity 73 surrounded by the main body shell 72 . The base 7 is generally a hollow cylindrical structure, and the main body shell 72 is provided with several Small holes 721, the small holes 721 are evenly distributed on the main body casing 72, the small holes 721 are the air inlets of the main body casing 72, in other embodiments, the main body casing 72 may be provided with one or more grilles or The grid is used as the air inlet, and no specific limitation is made here. The air flow enters the base cavity 73 through the air inlet, and the filter screen assembly 9 is installed on the base 7 and is located outside the air inlet to filter the air entering the air inlet and remove any possible cause of the bladeless fan. damaged particles. A fan wheel assembly 200 is installed in the base cavity 73 , and the fan wheel assembly 200 is used to draw the air flow through the air inlet and generate the required air flow out of the air outlet on the nozzle assembly 100 . The base cavity 73 is provided with a blocking plate 731 at the bottom, so that the airflow entering the base cavity 73 can all move upward and flow toward the wind wheel assembly 200 located on the base 7 . The main body casing 72 is formed with an extension casing 74 extending downward at the bottom, the base 7 has a lower annular flange 741, the lower annular flange 741 is formed to extend outward from the extension casing 74, and the main body casing 72 also has an upper annular flange 741. A flange 722, the upper annular flange 722 extending outward from the main body casing 72 near the upper end of the main body casing 72, the upper annular flange 722, the lower annular flange 741, the main body casing 72, and the extension casing 74 can be integrally formed or detachably connected, which is not specifically limited here. A number of fifth fixing posts 7411 are arranged on the bottom surface of the lower annular flange 741 , and the fifth fixing posts 7411 are formed to extend downward from the bottom surface of the lower annular flange 741 . The number of 7131 is the same, and the positions of the fifth fixing posts 7411 and the cylindrical holes 7131 correspond one-to-one. When the base 7 is fixed to the base 71, the fifth fixing posts 7411 are inserted into the cylindrical holes 7131, so that the The base 71 and the base 7 are fixed. At this time, the outer edge of the lower annular flange 741 and the side shell 714 of the base 71 abut each other. Inside the casing 7132 , the extending casing 74 , the blocking plate 731 and the bottom casing 713 are formed with a second cavity 75 , as shown in FIG. 2 .

An annular first limit ring 7221 and a second limit ring 7222 are disposed on the upper surface of the upper annular flange 722. The first limit ring 7221 and the second limit ring 7222 are coaxial with the main body shell 72. A limiting ring 7221 and a second limiting ring 7222 are formed to protrude upward from the upper surface of the upper annular flange 722 , and the first limiting ring 7221 is disposed close to the main body casing 72 relative to the second limiting ring 7222 . The upper annular flange 722 is provided with at least one card slot 7223 in the first limiting ring 7221 and at a position close to the main body casing 72 . Circumferentially equally spaced. Similarly, the outer edge of the upper surface of the upper annular flange 722 protrudes upward to form a protruding frame 7224, and a first concave ring 7225 is formed between the protruding frame 7224 and the upper annular flange 722. In this embodiment, The number of the protruding brackets 7224 is two, the two protruding brackets 7224 are located on opposite sides of the base cavity 73, and the two protruding brackets 7224 form a ring with two openings, so the first concave ring 7225 The number is two, the two first concave rings 7225 are located on opposite sides of the base cavity 73, and the convex extension frame 7224 is also provided with through holes 7226 communicating with the first concave rings 7225, and the number of the through holes 7226 is six And three of the through holes 7226 communicate with one first concave ring 7225 and are arranged at equal intervals in the circumferential direction, and the other three through holes 7226 communicate with the second first concave ring 7225 and are arranged at equal intervals in the circumferential direction.

Referring to FIG. 2 , the base 7 is further provided with a counterweight 76 for lowering the center of gravity of the base 7 . The counterweight 76 is disposed at the bottom of the base 7 and fixed on the base 7 by a fixing member. Specifically, the counterweight block 76 is located in the second cavity 75 , and the structure and material of the counterweight block 76 are not specifically limited here. In this embodiment, the counterweight block 76 is a rectangular parallelepiped structure. A second inner concave hole (not shown) is respectively provided, and the position of the second inner concave hole corresponds to the position of the sixth fixing column 715 arranged on the base 71. When the counterweight 76 is placed in the second cavity After the body 75 is assembled, the base 7 is fixed to the base 71, and the sixth fixing column 715 provided on the base 71 is inserted into the second inner concave hole at the corresponding position of the counterweight block 76, thereby fixing the counterweight block 76 on the On the base 71, the sixth fixing column 715 and the second inner concave hole can be threaded, but not limited to this. It is true that in other embodiments, the fixing method of the counterweight can also be other, which is not limited here. .

The base 7 is also provided with a nozzle lock frame 77 for limiting the nozzle assembly 100. The nozzle lock frame 77 includes a lock frame main body 771 and at least one protruding block 772 provided on the lock frame main body 771. The inner wall of the lock frame main body 771 is formed by protruding outward. In this embodiment, the number of the protruding blocks 772 is three, and the three protruding blocks 772 are arranged at equal intervals in the circumferential direction and correspond one-to-one with the positions of the through holes 7226 on the base 7 that communicate with a first concave ring 7225 Provided, when the nozzle lock frame 77 is fixed on the base 7, the lock frame main body 771 enters a first concave ring 7225, the protruding block 772 protrudes out of the base 7 through the through hole 7226 at the corresponding position, and the protruding block A limit space that can limit the axial movement is formed between the 772 and the base 7. Specifically, the protruding block 722 is located above the upper annular flange 722, and a limit space is formed between the protruding block 722 and the upper annular flange 722 . In this embodiment, the number of nozzle lock brackets 77 is two, the two nozzle lock brackets 77 are arranged on both sides of the base 7 opposite to each other, and one end of the rotating assembly 8 is arranged in the limiting space to be fixed on the base 7, Therefore, the rotating assembly 8 cannot move relative to the base 7 in the axial direction, and cannot be separated from the base 7, and the rotating assembly 8 can only rotate relative to the base 7 around the central axis, which increases the assembly stability of the bladeless fan.

The base 7 is provided with a receiving groove 78 for accommodating cables. The receiving groove 78 extends along the axial direction of the base 7. The number of the receiving grooves 78 is two. on both sides. In this embodiment, two accommodating grooves 78 are formed on the main body casing 72 and the extension casing 74 . Specifically, the main body casing 72 is formed with a first convex piece 781 and a second convex piece 782 protruding outward. A protrusion 781 and a second protrusion 782 extend to the extension case 74 along the axial direction of the main body case 72 . Below the upper annular flange 722, there is a first baffle 783 between the first tab 781 and the second tab 782, and above the lower annular flange 741, the first tab 781 and the second tab There is a second baffle plate 784 between the 782, the first convex piece 781, the second convex piece 782, the first baffle plate 783, the second baffle plate 784, and the main body shell 72 are surrounded to form a receiving groove 78 with an opening for receiving The groove 78 has a similar cuboid structure. At the bottom position where the accommodating groove 78 is located, the accommodating groove 78 is formed with a third inner concave hole 785 on the extending housing 74 , so as to connect the accommodating groove 78 with the second cavity 75 . The fourth inner concave hole 786 , similarly, communicates the receiving groove 78 with the second cavity 75 . A cable (not shown) for supplying power to the bladeless fan enters from the opening 7141 of the base 71 and passes through the third inner recessed hole 785 or the fourth inner recessed hole 786 into the receiving slot 78 to connect to the bladeless fan The bladeless fan is powered at the desired location of the fan, and the outer end of the cable is connected to a plug for connection to mains power. Among them, the cable includes a live wire (live wire) and a neutral wire (neutral wire). Optionally, after the cable enters the receiving slot 78 with one wire, it is divided into at least two wires inside. In addition, a first accommodating groove 787 is formed above the accommodating groove 78 for the first baffle plate 783 , the first convex piece 781 and the second convex piece 782 , the second baffle plate 784 , the first convex piece 781 and the second convex piece 782 is formed with a second accommodating groove 788 below the accommodating groove 78 , and both the first accommodating groove 787 and the second accommodating groove 788 are fixedly accommodating the magnet block 795 , please refer to FIG. 2 .

Please refer to FIG. 8 to FIG. 10 , the base 7 is also provided with a side strip 79 for closing the receiving groove 78 . The side strip 79 is similar to a rectangular parallelepiped structure. Correspondingly, the number of the side strips 79 is two, two The side strips 79 respectively close the openings of one receiving groove 78 . Several second reinforcing ribs 791 are provided on the inner wall of the side bar 79 to increase the strength of the side bar 79 . The receiving groove 78 is provided with a first stepped surface 789 , and the side strip 79 is provided with a second stepped surface 792 matched with the first stepped surface 789 . The sheet 782 is provided with a first stepped surface 789 on one end away from the main body shell 72, and the side strip 79 has a first side wall 793 and a second side that are respectively opposite to the first tab 781 and the second tab 782. The wall 794 , the first side wall 793 and the second side wall 794 are respectively formed with a second step surface 792 at one end of the first tab 781 and the second tab 782 butting, and the second step surface 792 is connected to the first step surface 789 By engaging, the side strips 79 are engaged in the receiving grooves 78 . The side strip 79 is inserted into the base 7 from the top of the base 7 and cooperates with the receiving groove 78. At this time, the first stepped surface 789 and the second stepped surface 792 cooperate to fix the side strip 79 and the receiving groove 78. The cables accommodated in the accommodating grooves 78 are hidden, which is convenient for wiring, and the cables are not cluttered and visible, thereby improving the aesthetics of the bladeless fan.

In addition, in order to further fix the side strip 79 in the receiving groove 78, a plurality of fixing blocks 780 are provided on the end of the first convex piece 781 and the second convex piece 782 of the receiving groove 78 away from the main body shell 72. Please refer to 6 , the fixing block 780 is formed by protruding outward from the first tab 781 or the second tab 782 , and the side bar 79 is formed from the second reinforcing rib near the first side wall 793 and the second side wall 794 791 protrudes outward to form a fixing bar 796, the fixing bar 796 has a fixing baffle 7961 and an extension plate 7962 extending downward from the fixing baffle 7961, the extension plate 7962 is higher than the first side wall 793 or the second side wall 794, when the side bar 79 is inserted into the base 7 from the top of the base 7 and is matched with the receiving groove 78, the fixing block 780 abuts the fixing bar 796, and the fixing block 780 is located between the fixing baffle 7961 and the extension plate 7962 , to improve the cooperation stability of the side strip 79 and the accommodating groove 78 . There are fixing pieces 797 on the top of the side strips 79. When the two side strips 79 are fixed on the base 71, the two fixing pieces 797 extend into the two openings formed by the two protruding frames 7224, so as to be connected with the two sides. Each protruding frame 7224 forms a complete ring.

The filter screen assembly 9 is installed between the upper annular flange 722 and the lower annular flange 741, and the filter screen assembly 9 is arranged on both sides of the side bars 79, which are connected with the filter screen assembly 9 and connect the filter screen assembly. 9 is fixed on the base 7. The side strip 79 and the filter screen assembly 9 are connected by magnetic attraction. Specifically, a magnetic suction sheet is clamped on the filter screen assembly 9, and a magnet block 795 is installed at the upper end and the lower end of the side strip 79 respectively. That is, the magnet blocks 795 in the first accommodating groove 787 and the second accommodating groove 788 . However, the connection method between the side strip 79 and the filter screen assembly 9 is not limited to this, and will not be listed one by one here.

Referring to FIG. 11 , in order to drive the nozzle assembly 100 to rotate relative to the base 7 around the central axis to change the horizontal wind direction of the bladeless fan, the bladeless fan further includes a second driving member 811 for providing power and a second driving member 811 for transmitting the power to the nozzle assembly 100 The transmission assembly is arranged between the base 7 and the nozzle assembly 100 , and the nozzle assembly 100 is rotated relative to the base 7 through the transmission assembly. In this embodiment, the bladeless fan further includes a rotating assembly 8 connecting the base 7 and the nozzle assembly 100. The nozzle assembly 100 is fixed on the rotating assembly 8, and the rotating assembly 8 is used to drive the nozzle assembly 100 to rotate relative to the base 7. Therefore, The second driving member 811 and the transmission assembly are disposed between the rotating assembly 8 and the base 7 , and the rotating assembly 8 includes a rotating support frame 82 connecting the base 7 and the nozzle assembly 100 .

Please refer to FIG. 12 and FIG. 13 , one end of the rotating support frame 82 is fixedly connected to the nozzle assembly 100 , and the other end is rotatably connected to the base 7 . In this embodiment, the rotating support frame 82 is generally a hollow cylindrical structure, the rotating support frame 82 includes a support frame shell 821, the support frame shell 821 is a hollow cylindrical structure, and the rotating support frame 82 has an extension portion 822, the extension portion 822 is formed by protruding outward from the inner wall of the support frame shell 821 and then extending downward along the axial direction of the support frame shell 821, and then extending outward in the horizontal direction. A third accommodating groove 823 is formed around the part 822 and the support frame shell 821. The number of the extension parts 822 is four. The four extension parts 822 are arranged at equal intervals in the circumferential direction along the inner wall of the support frame shell The third accommodating grooves 823 form an annular accommodating space. In addition, each extension portion 822 is provided with a pillar 824, the pillar 824 is formed to protrude outward from the extension portion 822, and the pillar 824 is located at the same position on each extension portion 822, and the pillar 824 is located along the support frame housing 821. axis extension. Two second accommodating cavities 825 are also formed on the outer wall of the support frame housing 821 . When the rotating assembly 8 is arranged on the base 7 , one end of the rotating support frame 82 is arranged in the limiting space formed by the nozzle lock frame 77 and the base 7 . A support frame flange 826 is formed by extending outward, and the support frame flange 826 is located in the limiting space. The installation method of the rotating support frame 82 can be: first place the rotating support frame 82 on the base 7, and then lock the two nozzles. 77 is installed on the base 7, and the protruding block 772 is located above the flange 826 of the support frame, so as to limit the movement of the rotating support frame 82 in the axial direction and increase the stability of the bladeless fan.

The transmission assembly includes a ring gear 812 provided on one of the base 7 and the nozzle assembly 100, and a pinion gear 813 meshed with the ring gear 812, and the pinion 813 is provided on the other of the base 7 and the nozzle assembly 100. On the one hand, the specific positions of the ring gear 812 and the pinion gear 813 are not limited here. In this embodiment, the pinion gear 813 is arranged on the nozzle assembly 100. Specifically, the pinion gear 813 is arranged on the rotating support frame 82. The gear 812 is fixed on the base 7 .

The second driving member 811 is mounted on the rotating support frame 82 , the second driving member 811 is a motor having a second output shaft 814 , and the pinion 813 is sleeved on the second output shaft 814 . The second driving member 811 is fixed on the support frame housing 821 of the rotating support frame 82 , and the second output shaft 814 of the motor is located below the motor and extends into the third accommodation formed by the support frame housing 821 and the extension portion 822 in slot 823. The outer wall of the ring gear 812 is provided with a number of meshing teeth that mesh with the pinion gear 813. In this embodiment, the meshing teeth are formed on the upper half of the outer wall of the ring gear 812, and the meshing teeth are arranged along the axial direction of the ring gear 812, but not here. With a specific limitation, the meshing teeth may be formed on the entire outer wall of the ring gear 812 . The ring gear 812 is provided with at least one clamping block 815. The clamping block 815 extends downward from the ring gear 812. The at least one clamping block 815 is arranged at equal intervals in the circumferential direction. In this embodiment, the number of the clamping blocks 815 is four. The specific number of the card blocks 815 is not limited here. It should be noted that the locking block 815 and the ring gear 812 may also be detachably fixed. The base 7 is provided with a card slot 7223 which is matched with the card block 815 , and the card block 815 is inserted into the corresponding position of the card groove 7223 to fix the ring gear 812 on the base 7 . The ring gear 812 is provided with a fourth accommodating groove 816 . Specifically, the fourth accommodating groove 816 is formed on the upper portion of the ring gear 812 .

One end of the ring gear 812 away from the base 7 extends into the third accommodating groove 823 formed by the support frame housing 821 and the extending portion 822 , and the pinion gear 813 and the ring gear 812 are engaged in the third accommodating groove 823 . The motor drives the pinion 813 to rotate, so that the pinion 813 and the ring gear 812 rotate relative to each other. Since the ring gear 812 is fixed on the base 7, the motor and the pinion 813 rotate relative to the ring gear 812 and the base 7. Therefore, the motor drives the rotation of the rotating support frame 82 relative to the ring gear 812 and the base 7, and the nozzle assembly 100 and the fan wheel assembly 200 are fixed on the rotating support frame 82. Therefore, the nozzle assembly 100 and the fan wheel assembly 200 are connected to the rotating support frame 82. The frame 82 rotates relative to the base 7 synchronously.

Please refer to FIG. 14 and FIG. 15 in conjunction with FIG. 1 , FIG. 11 , a shock absorbing member 83 is disposed between the wind wheel assembly 200 and the rotating support frame 82 . The shock absorbing part 83 includes a fixing part 831 fixed in the wind wheel assembly 200 and a shock absorbing part 832 sandwiched between the wind wheel assembly 200 and the rotating support frame 82, and the fixing part 831 and the shock absorbing part 832 are integrally formed, The shock absorbing member 83 and the rotating support frame 82 are connected by a first connecting member 833 , and the first connecting member 833 and the shock absorbing member 83 jointly limit the circumferential rotation of the rotor assembly 200 relative to the rotating support frame 82 .

In this embodiment, the first connecting member 833 is a pin 833, but the first connecting member 833 is not limited to the pin 833, but can also be other components for connecting and fixing, such as a long rod. The pin 833 can be partially inserted into the rotating support frame 82, and the rotating support frame 82 is provided with a first fixing hole 827, as shown in FIG. , the pin 833 can be partially inserted into the first fixing hole 827 . The other part of the pin 833 can be inserted into the shock absorbing member 83 to fix the shock absorbing member 83 and the rotating support frame 82. The shock absorbing part 832 has an insertion hole 834 formed at one end of the shock absorbing member 832 close to the rotating support frame 82. The pin 833 may be partially inserted into the insertion hole 834 . The insertion hole 834 may penetrate the shock absorbing portion 832 and extend into the fixing portion 831. It is conceivable that the insertion hole 834 may also be a through hole penetrating the shock absorbing portion 832 and the fixing portion 831. Here, the specific insertion hole 834 will not be described. The formation position is limited.

The wind wheel assembly 200 is provided with a second fixing hole 2011 , and the fixing portion 831 is embedded in the second fixing hole 2011 , so as to fix the shock absorbing member 83 and the wind wheel assembly 200 . In other embodiments, the fixing portion 831 can also clamp the rotor assembly 200 to fix the rotor assembly 200 and the shock absorbing member 83 . The wind wheel assembly 200 is fixed to the rotating support frame 82 by means of the shock absorber 83 .

In this embodiment, the shock absorbing member 83 is an arrow-like structure, the shock absorbing portion 832 is a conical-like structure, the fixing portion 831 is a cylindrical-like structure, and the diameter of the fixing portion 831 is smaller than the maximum diameter of the shock absorbing portion 832. However, the structure of the shock absorbing member 83 may also be other, for example, the shock absorbing portion 832 is a rectangular parallelepiped structure, a cylindrical structure, etc., which are not listed here one by one. The shock absorbing member 83 is made of elastic material. When the shock absorbing member 83 is fixed on the rotating support frame 82 through the first connecting member 833 , the wind wheel assembly 200 is fixed on the shock absorbing member 83 through the fixing portion 831 . , because the diameter of the fixing portion 831 is smaller than the maximum diameter of the shock absorbing portion 832, the wind wheel assembly 200 is at least partially located above the shock absorbing portion 832, thereby restricting the downward movement of the wind wheel assembly 200 relative to the rotating support frame 82 in the axial direction , because the shock-absorbing part 83 is made of elastic material, it can play a shock-absorbing effect between the wind wheel assembly 200 and the rotating support frame 82. In addition, because the fixed part 831 is inserted into the wind wheel assembly 200, it is limited The movement of the wind wheel assembly 200 in the circumferential direction relative to the rotating support frame 82 further exerts a shock absorption effect due to the elastic properties of the fixing portion 831 . The number of the shock-absorbing parts 83 is four, and the four shock-absorbing parts 83 are arranged at equal intervals in the circumferential direction to stably fix the wind wheel assembly 200 on the rotating support frame 82. It is true that in other embodiments, The number of the shock absorbing parts 83 can also be other, which is not specifically limited here. The shock absorbing parts 83 enhance the stability of the bladeless fan.

14 and 16, a bearing 84 is arranged between the rotating assembly 8 and the base 7, so as to increase the rotational stability of the nozzle assembly 100 and the rotating assembly 8 on the base 7 relative to the base 7, and reduce the rotation The friction loss between the assembly 8 and the base 7 increases the service life of the bladeless fan, and the rotating assembly 8, the bearing 84, and the base 7 are arranged in the axial direction. The bearing 84 is an annular structure, which includes a lower bearing shell 841 arranged on the base 7 , an upper bearing shell 842 abutting against the rotating support frame 82 , a cage 843 located between the upper bearing shell 842 and the lower bearing shell 841 , As well as the balls 844 disposed in the cage 843, the cage 843 is provided with a number of concave holes 8431 for installing the balls 844, as shown in FIG. 11 . A plurality of concave holes 8431 are equidistantly arranged on the cage 843, the balls 844 are installed in the concave holes 8431, and the balls 844 are located between the bearing upper shell 842 and the bearing lower shell 841, so that the bearing upper shell 842 and the bearing lower shell 841 are smoothly opposed to each other. turn.

The base 7 is provided with a second concave ring 7227. The second concave ring 7227 is a receiving space formed by the ring gear 812 and the first limit ring 7221 after the ring gear 812 is fixed on the base 7. The bearing lower shell 841 is located In the second concave ring 7227, the relative fixing of the lower bearing shell 841 and the base 7 is realized. The bottom of the rotating support frame 82 has a third stepped surface 828 , and the third stepped surface 828 is engaged with the bearing upper shell 842 . Specifically, the third stepped surface 828 at the bottom of the rotating support frame 82 is formed concavely from the inner wall of the support frame shell 821 . After the third stepped surface 828 is clamped with the bearing upper shell 842 , the third stepped surface 828 and The upper surface of the bearing upper shell 842 and the inner surface of the bearing upper shell 842 abut each other, the bearing 84 carries the weight of the rotating support frame 82 and the components mounted on the rotating support frame 82, and the rotating assembly 8 and the nozzle assembly 100 are relatively basic. When the seat 7 rotates, it can rotate smoothly.

The bladeless fan further includes a steering sensing assembly for detecting the rotational state of the nozzle assembly 100 relative to the base 7 , and the rotational state includes parameters such as the rotational direction and the rotational position. 11 and 12 , the steering induction assembly includes a first magnet 851 disposed in the fourth accommodating groove 816 of the ring gear 812 , a centering hall PCBA board 852 disposed on the rotating support frame 82 and a limiter The Hall PCBA board 853 , specifically, the centering Hall PCBA board 852 and the limit Hall PCBA board 853 are respectively installed in the two second accommodating cavities 825 on the rotating support frame 82 . It should be noted that the Hall sensors installed on the rotating support frame 82 are not limited to the centering Hall PCBA board 852 and the limiting Hall PCBA board 853 , but also others, which are not specifically limited here. Of course, in other embodiments, the first magnet 851 can also be arranged on the rotating support frame 82, and the centering Hall PCBA board 852 and the limiting Hall PCBA board 853 are arranged on the ring gear 812 or the base 7 at the same time. This is not specifically limited, it depends on the actual situation. When the rotating support frame 82 rotates relative to the ring gear 812, the centering Hall PCBA board 852 cooperates with the first magnet 851 to determine the rotational position of the rotating support frame 82, and the limiting Hall PCBA board 853 cooperates with the first magnet 851 to Determine the maximum limit position of the rotation of the rotating support frame 82, thereby determining the rotation direction and rotation angle of the rotating support frame 82, to obtain the position and rotation angle of the nozzle assembly 100 during the rotation of the confirmed nozzle, so as to improve the rotation accuracy of the nozzle assembly 100.

11 and FIG. 12 and FIG. 17 , the bladeless fan further includes a power supply assembly for supplying power to the rotating nozzle assembly 100 and the motor that drives the nozzle assembly 100 to rotate, and the power supply assembly includes a conductive assembly with contacts 861 , and the conductive ring 862 in electrical contact with the end face of the contact 861, the conductive component can be arranged on one of the base 7 and the rotating component 8, and the conductive ring 862 can be arranged on the other of the base 7 and the rotating component 8, The specific positions of the conductive components and the conductive rings 862 are not specifically limited herein. In this embodiment, the conductive component with the contacts 861 is arranged on the base 7 , and the conductive ring 862 is arranged on the rotating component 8 .

The conductive ring 862 is an annular structure with an opening and has an L-shaped cross section. The conductive ring 862 can be fixed on the rotating component 8 by being sleeved on the rotating component 8. The conductive ring 862 is formed with a plurality of protruding strips 863. The protruding strips 863 Protruding upward from the conductive ring 862, the protruding strips 863 and the conductive ring 862 are integrally formed, but not limited to this, the protruding strips 863 can also be fixed on the conductive ring 862, and the fixing method can be screw fastening, gluing, etc. The conductive ring 862 includes a positive conductive ring 862 and a negative conductive ring 862. The positive conductive ring 862 and the negative conductive ring 862 have exactly the same structure. One of the positive conductive ring 862 and the negative conductive ring 862 is arranged on the rotating support frame 82. It also includes a conducting ring fixing frame 87 arranged on the rotating support frame 82 , and the other one of the positive conducting ring 862 and the negative conducting ring 862 is arranged on the conducting ring fixing frame 87 . Specifically, the conductive ring fixing frame 87 is sleeved on the rotating support frame 82, and the conductive ring fixing frame 87 is fixed on the rotating support frame 82 by a locking member (not shown), and the conductive ring fixing frame 87 and the rotating support frame 82 are A first lock hole 871 and a second lock hole 829 are respectively formed on the upper part of the lock, and the first lock hole 871 and the second lock hole 829 are arranged correspondingly. The lock can be a screw. The first lock hole 871 and the second lock hole 871 The locking hole 829 is a threaded hole that is threaded with a screw, but the fixing method of the conductive ring fixing frame 87 and the rotating support frame 82 is not limited to this, and will not be listed one by one here. The conductive ring fixing frame 87 is provided with a number of fifth accommodating grooves 872 along the circumference that cooperate with the protruding strips 863. When the conductive ring 862 is fixed on the conductive ring fixing frame 87, the side and bottom of the conductive ring 862 and the conductive ring fixing frame 87 Face and fit, and the protruding strips 863 are inserted into the corresponding fifth accommodating grooves 872 to fix the conductive ring 862 on the conductive ring fixing frame 87 . Similarly, the support frame flange 826 of the rotating support frame 82 is provided with a plurality of sixth accommodating grooves 8261 along the circumference that cooperate with the protruding strips 863. When the conductive ring 862 is fixed on the rotating support frame 82, the conductive ring 862 and the support frame are convex. The side surface and the bottom surface of the edge 826 are fitted together, and the protruding strips 863 are inserted into the corresponding sixth accommodating grooves 8261 to fix the conductive ring 862 on the rotating support frame 82. Here, the fixing method of the conductive ring 862 is not specified. limited. One surface of the positive conductive ring 862 and the negative conductive ring 862 faces the conductive components disposed on the base 7 .

Referring to FIG. 5 , the conductive component includes a conductive fixing base 864 fixed on the base 7 and a conductive sheet arranged on the conductive fixing base 864 , the conductive sheet includes an elastic arm 8651 arranged on the conductive fixing base 864 , and an elastic arm 8651 arranged on the Contact 861 on arm 8651. The contact 861 includes a positive contact 861 and a negative contact 861. The positive conductive ring 862 is in electrical contact with the end surface of the positive contact 861, and the negative conductive ring 862 is in electrical contact with the end of the negative contact 861. When the rotating support frame 82 rotates relative to the base 7 When the conductive ring 862 is always in contact with the contact 861, the power supply method is convenient and the structure is simple. The elastic arm 8651 includes a first end and a second end, the first end is fixed on the conductive fixing base 864, and the second end is fixed with a contact 861. The first end of the elastic arm 8651 is fixed, and the second end is not fixed. The elastic arm 8651 is similar to a U-shaped structure. The elastic arm 8651 has an upward bending part 8652 at the first end to facilitate the fixing of the elastic arm 8651. The second end is bent upward relative to the first end, and an upward force is applied to the contact 861 fixed on the second end, so that the contact 861 can move relative to the base 7 in the axial direction.

Please refer to FIG. 6 , the base 7 is provided with a seventh accommodating groove 723 located above the accommodating groove 78 , wherein the seventh accommodating groove 723 communicates with one of the first accommodating grooves 787 and is located in the first accommodating groove 787 Above, the conductive fixing seat 864 is fixed in the seventh accommodating groove 723 and above the magnet block 795, the conductive fixing seat 864 and the base 7 are fixed by a fixing member (not shown), and the conductive fixing seat 864 and the base 7 are fixed. There is a third fixing hole 866 matched with a fixing member, the fixing member can be a screw, and the third fixing hole 866 is a screw hole. In the embodiment, the number of the third fixing holes 866 is three, and the three third fixing holes 866 are distributed in a triangular position. Certainly, in other embodiments, the conductive fixing seat 864 and the base 7 are fixed in other manners, such as clamp connection, etc., and the number and distribution positions of the third fixing holes 866 are not specifically limited herein.

Please refer to FIG. 17 , the conductive fixing base 864 is provided with a first concave hole 8641 , the second end of the elastic arm 8651 traverses the first concave hole 8641 , and the contact 861 is located above the first concave hole 8641 . Specifically, The conductive fixing seat 864 is similar to a stepped structure and has a first plane 8642 and a second plane 8643 located below the first plane 8642. The first plane 8642 is provided with one of the positive contact 861 and the negative contact 861, the second The other one of the positive electrode contact 861 and the negative electrode contact 861 is disposed on the plane 8643, which is not specifically limited here. Both the first plane 8642 and the second plane 8643 have a first concave hole 8641. In addition, on one side of the first concave hole 8641, a mounting hole 8644 is formed on both the first plane 8642 and the second plane 8643. The bent portion 8652 of the arm 8651 is fixed on the side wall of the mounting hole 8644, and the elastic arm 8651 is located under the first plane 8642 or the second plane 8643 and the second end faces the first concave hole 8641 and passes through the first concave The hole 8641, the contact 861 is located on the upper surface of the second end and faces the conductive ring 862. When the rotating assembly 8 is installed on the base 7, the positive conductive ring 862 and the negative conductive ring 862 will be in contact with the corresponding positive contact 861 and the negative contact 861, and the positive conductive ring 862 and the negative conductive ring 862 will be applied to make the polar contact The force of the point 861 and the negative contact 861 moving downward, but the elastic arm 8651 exerts the force of the contact 861 moving upward, so that the conductive ring 862 is in closer contact with the contact 861, and the power supply to the rotating nozzle assembly 100 is stable. Strong sex.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above examples only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A bladeless fan comprising a base, a nozzle assembly disposed on the base, and a rotation assembly connecting the base and the nozzle assembly, the nozzle assembly being fixed to the rotation assembly, the rotation assembly comprising a rotation support frame connecting the base and the nozzle assembly, the rotation assembly and the nozzle assembly being rotatable relative to the base about a central axis.

2. The bladeless fan of claim 1 further comprising a drive member providing power and a transmission assembly transmitting the power to the nozzle assembly, the transmission assembly being disposed between the base and the nozzle assembly, the nozzle assembly being rotatable relative to the base by the transmission assembly.

3. The bladeless fan of claim 2 wherein the transmission assembly comprises a pinion gear disposed on the drive member and a ring gear secured to the base, the pinion gear being in mesh with the ring gear.

4. The bladeless fan of claim 3 wherein the drive member is mounted on the rotating support frame.

5. The bladeless fan of claim 3 wherein the drive member is a motor having an output shaft, the pinion gear being disposed about the output shaft.

6. The bladeless fan of claim 1, further comprising a wind wheel assembly disposed on the rotating assembly, wherein a damping flexible member is disposed between the wind wheel assembly and the rotating support frame, the damping flexible member comprises a fixed portion fixed in the wind wheel assembly and a damping portion clamped between the wind wheel assembly and the rotating support frame, the fixed portion and the damping portion are integrally formed, the damping flexible member is connected to the rotating support frame through a connecting member, and the connecting member and the damping flexible member together limit circumferential rotation of the wind wheel assembly relative to the rotating support frame.

7. The bladeless fan according to claim 1, wherein the base is provided with a nozzle locking frame for limiting the rotating support frame, the nozzle locking frame and the base form a limiting space, and one end of the rotating support frame is arranged in the limiting space to be fixed on the base.

8. The bladeless fan of claim 5 wherein one of the base and the rotating assembly has a contact disposed thereon, and the other of the base and the rotating assembly has an electrically conductive ring disposed thereon, the contact being in electrical contact with an end face of the electrically conductive ring, the contact being electrically connected to the motor.

9. The bladeless fan of claim 8, wherein the conductive rings comprise a positive conductive ring and a negative conductive ring, and the contacts comprise a positive contact and a negative contact, the positive conductive ring in electrical contact with the positive contact end face, and the negative conductive ring in electrical contact with the negative contact end face.

10. The bladeless fan of claim 3, wherein the ring gear is provided with a groove, the groove is provided with a magnet, and the rotary support frame is provided with a centering Hall PCBA plate and a limiting Hall PCBA plate which are arranged opposite to the magnet.

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