CN212479676U - Bladeless fan - Google Patents

Abstract

The utility model relates to a bladeless fan, including the wind wheel subassembly that has the income wind passageway and the divertor subassembly that has the water conservancy diversion passageway, the wind wheel subassembly with the divertor subassembly meets and makes the income wind passageway with the water conservancy diversion passageway is linked together, the wind wheel subassembly with be provided with between the divertor subassembly sealed the income wind passageway with the second sealing washer of water conservancy diversion passageway, the second sealing washer be provided with the damping ring that the wind wheel subassembly contacted. The fluid director component of the bladeless fan can seal the fluid guide channel and the air inlet channel by arranging the sealing ring connected with the air wheel component; in addition, the sealing ring is provided with a damping ring which can damp the wind wheel component, thereby reducing the noise of the fan.

Description

Bladeless fan

Technical Field

The utility model relates to a fan, in particular to bladeless fan.

Background

Compared with the traditional electric fan with the fan blades, the bladeless fan has the characteristics of low noise, safety and the like. The basic structure of the bladeless fan comprises a nozzle assembly, an air wheel assembly and a base, wherein air flow generated by the air wheel assembly is blown out along an air outlet of the nozzle assembly.

The conventional bladeless fan is generally provided with a flow guider component connected with a wind wheel component, and the air flow is rectified by matching a wind inlet channel of the wind wheel component with a flow guiding channel of the flow guider component. However, the existing deflector assembly and the wind wheel assembly have poor sealing performance after being connected, and are easy to cause air leakage; in addition, because the blades of the wind wheel assembly need to be driven by the motor, the motor is easy to vibrate in the process, and the noise of the fan is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bladeless fan, it can improve the leakproofness of divertor subassembly and wind wheel subassembly, also can reduce the vibrations that the wind wheel subassembly produced simultaneously.

In order to achieve the above purpose, the utility model provides a following technical scheme: a bladeless fan comprises a wind wheel assembly with a wind inlet channel and a fluid director assembly with a flow guide channel, wherein the wind wheel assembly is connected with the flow director assembly to enable the wind inlet channel to be communicated with the flow guide channel, a second sealing ring for sealing the wind inlet channel and the flow guide channel is arranged between the wind wheel assembly and the flow director assembly, and a damping ring in contact with the wind wheel assembly is arranged on the second sealing ring.

Further, the deflector assembly comprises a deflector housing and a deflector cap positioned in the deflector housing, the deflector channel is formed between the deflector housing and the deflector cap, and the second seal ring is arranged between the deflector cap and the wind wheel assembly.

Further, the wind wheel component comprises a wind wheel inner shell and a wind wheel outer shell, the wind inlet channel is formed between the wind wheel inner shell and the wind wheel outer shell, the second sealing ring is embedded in the bottom of the air guide sleeve, and the top of the second sealing ring is abutted to the top of the wind wheel inner shell.

Further, the bottom of the air guide cover is provided with a flange in an outward protruding mode, the second sealing ring comprises a second sleeving connection portion, a second caulking groove is formed in the second sleeving connection portion along the circumferential direction of the second sleeving connection portion, and the second sealing ring is sleeved outside the flange through the second caulking groove.

Further, the second sealing ring further comprises a second sealing portion formed along the circumferential direction of the second sleeving portion, the second sealing portion protrudes relative to the lower end face of the second sleeving portion, and the second sealing portion is abutted to the top of the wind wheel inner shell.

Further, the damping ring sets up on the second cup joints the portion lower extreme face, the damping ring is relative second cup joints portion lower extreme face downward protrusion, the damping ring with the top of wind wheel inner shell contacts.

Further, the number of the shock absorption rings is multiple.

Further, the wind wheel subassembly includes wind wheel inner shell and wind wheel shell, the passageway that entries forms the wind wheel inner shell with between the wind wheel shell, first sealing washer inlays to be established divertor shell bottom, first sealing washer with wind wheel shell looks butt, first sealing washer includes first grafting portion, first caulking groove has been seted up along its circumference to first grafting portion, first grafting portion passes through first caulking groove cup joints divertor shell bottom.

Further, the first sealing ring further comprises a first sealing portion formed along the circumferential direction of the first sleeving portion, and the first sealing portion is abutted to the side wall of the wind wheel shell.

Furthermore, a sealing ring pressing ring is clamped on the fluid director shell, and the first sleeving part is limited between the sealing ring pressing ring and the fluid director shell.

The beneficial effects of the utility model reside in that: the fluid director component of the bladeless fan can seal the fluid guide channel and the air inlet channel by arranging the sealing ring connected with the air wheel component; in addition, the sealing ring is provided with a damping ring which can damp the wind wheel component, thereby reducing the noise of the fan.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic overall explosion diagram of the bladeless fan of the present invention.

Fig. 2 is a sectional view of the bladeless fan of the present invention.

Fig. 3 is a partially enlarged view of fig. 2 at the bladeless fan a.

Fig. 4 is a partial enlarged view of the bladeless fan of fig. 2 at B.

Fig. 5 is a partial enlarged view of the fig. 2 bladeless fan at C.

Fig. 6 is a cross-sectional view of the bladeless fan of fig. 2 in another direction.

Fig. 7 is an enlarged view of a portion of the fig. 6 bladeless fan at D.

Fig. 8 is a schematic structural view of the inner casing of the bladeless fan nozzle of the present invention.

Fig. 9 is an exploded view of the diffused air switching assembly of the bladeless fan according to the present invention.

Fig. 10 is a schematic structural view of a tie rod of the diffusive wind switching assembly of fig. 9.

Fig. 11 is an exploded view of the impeller assembly and deflector assembly of the bladeless fan of the present invention.

Fig. 12 is a cross-sectional view of the deflector assembly of fig. 11.

Fig. 13 is an installation schematic of the sealing ring compression ring and deflector housing of the deflector assembly of fig. 11.

Fig. 14 is an enlarged view of a portion of the deflector assembly of fig. 12 at E.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a bladeless fan according to a preferred embodiment of the present invention includes a base 7, a wind wheel assembly 200, a deflector assembly 6, a nozzle assembly 100, and a top case assembly 4. The top case assembly 4, the nozzle assembly 100, the deflector assembly 6, and the wind wheel assembly 200 are sequentially disposed on the base 7 from top to bottom.

As shown in fig. 2, 6 and 8, the nozzle assembly 100 includes a nozzle inner casing 1 and a nozzle outer casing 2 covering the outside of the nozzle inner casing 1. An air containing cavity 103 which is sealed relative to the outside is formed between the inner wall of the nozzle inner shell 1 and the outer wall of the nozzle outer shell 2 in a matching way, and the flow guide component 6 is communicated with the air containing cavity 103. The nozzle inner shell 1 is provided with a first air outlet 104a and a second air outlet 105a which are communicated with the air accommodating cavity 103, the nozzle outer shell 2 is provided with a first air guide hole 211 corresponding to the first air outlet 104a and a second air guide hole 221 corresponding to the second air outlet 105a, the first air outlet 104a and the first air guide hole 211 are matched to form a first air outlet part 101 of the nozzle assembly 100, and the second air outlet 105a and the second air guide hole 221 are matched to form a second air outlet part 102.

The nozzle inner housing 1 includes a first nozzle 11, a second nozzle 12, a first support seat 13, and a second support seat 14. The first nozzle 11 and the second nozzle 12 are coupled to form an air guide channel 106, and both ends of the air guide channel 106 are communicated with the outside through a first air guide hole 211 and a second air guide hole 221. When the airflow generated in the fan is blown out from the first outlet 104a or the second outlet 105a, it can guide the external air to flow together along the air guide channel 106. The first support seat 13 and the second support seat 14 are respectively connected with the upper end and the lower end of the first nozzle 11 and the second nozzle 12 and are used for supporting and fixing the first nozzle 11 and the second nozzle 12. The first supporting seat 13 is covered outside the wind wheel assembly 200 and the deflector assembly 6. The middle position of the upper end surface of the first support base 13 is provided with a boss 133, the boss 133 is of a hollow structure, an air supply channel 1331 is formed in the boss 133, and the airflow blown out by the air wheel assembly 200 enters the air accommodating cavity 103 through the air supply channel 1331.

As shown in fig. 11 and 12, the deflector assembly 6 includes a deflector housing 61 and a deflector shroud 62 disposed within the deflector housing 61. A diversion channel 63 is formed between the outer wall of the diversion cover 62 and the inner wall of the deflector shell 61, and the diversion channel 63 is communicated with the air containing cavity 103. The wind wheel assembly 200 comprises a wind wheel outer shell 201 and a wind wheel inner shell 202, an air inlet channel 203 is formed between the wind wheel outer shell 201 and the wind wheel inner shell 202, part of the wind wheel assembly 200 extends into the flow guide channel 63 to enable the air inlet channel 203 to be communicated with the flow guide channel 63, and wind blown out through the air inlet channel 203 enters the wind accommodating cavity 103 after being guided by the flow guide channel 63.

The deflector housing 61 is open-topped and open-bottomed in configuration. The top of the deflector shell 61 is matched and connected with the bottom of the first supporting seat 13. Specifically, as shown in fig. 7, a first seam allowance 611 is formed at the top of the deflector housing 61 along the side edge thereof, a second seam allowance 612 is correspondingly formed at the bottom of the first support base 13, and the first seam allowance 611 and the second seam allowance 612 are fastened to each other. In other embodiments, a threaded fastener may be provided to connect the two, and the present invention is not limited herein.

In addition, the deflector housing 61 is further provided with a first receiving portion 613 corresponding to the first nozzle 11 and the second nozzle 12, and two ends of the first receiving portion 613 are respectively connected with the inner wall of the deflector housing 61. A fourth groove 6131 is formed on the first bearing portion 613, and the fourth groove 6131 is an arc groove having the same profile as the bottom of the first nozzle 11 and the second nozzle 12. The fourth groove 6131 can mate with the second groove 132 and mate with the bottom of the first nozzle 11 and the second nozzle 12 when the deflector housing 61 is snapped under the first support base 13.

Preferably, in order to improve the supporting strength of the first receiving portion 613, a supporting rib 614 is further disposed on the deflector housing 61, and two ends of the supporting rib 614 are respectively connected to the first receiving portion 613 and the inner wall of the deflector housing 61. In the embodiment, the supporting ribs 614 are located in the middle of the first receiving portion 613, and two supporting ribs 614 are oppositely disposed on two sides of the first receiving portion 613.

The bottom side wall of the deflector housing 61 is provided with a second bolster 615. The bottom of the deflector shell 61 extends downwards along the circumferential direction thereof to form a convex ring 617, the convex ring 617 is provided with a first sealing ring 64, and the first sealing ring 64 is abutted against the wind wheel shell 201 of the wind wheel assembly 200, so that a gap between the wind wheel assembly 200 and the deflector shell 61 is sealed.

The first seal ring 64 includes an annular first fitting portion 641 and a first seal portion 642 formed on an inner ring of the first fitting portion 641. The upper end face of the first fitting portion 641 is provided with a first caulking groove 6411 from top to bottom, the first caulking groove 6411 is formed along the circumferential direction of the first fitting portion 641, the width of the first caulking groove 6411 is equal to or slightly smaller than the thickness of the convex ring 617, and the first sealing ring 64 is embedded in the convex ring 617 through the first caulking groove 6411. The first sealing portion 642 has a certain elasticity and is bent inward, when the wind wheel assembly 200 is inserted into the diversion channel 63, the wind wheel housing 201 of the wind wheel assembly 200 abuts against the first sealing portion 642, the first sealing portion 642 is bent outward to avoid the position, and under the action of the elasticity, the first sealing portion 642 abuts against the housing of the wind wheel assembly 200.

Preferably, in order to improve the tight fit between the first sealing ring 64 and the convex ring 617, the deflector housing 61 is further provided with a sealing ring pressing ring 65, and the sealing ring pressing ring 65 is clamped on the deflector housing 61 and abuts against the side surface and the lower end surface of the first sealing ring 64.

As shown in fig. 13, a buckle 651 is disposed on a side wall of the sealing ring pressing ring 65, a bayonet 6151 is correspondingly disposed on the second socket 615 of the deflector housing 61, and the buckle 651 penetrates through the bayonet 6151 and abuts against the second socket 615. The buckle 651 includes an arm portion 6511 connected to the side wall and a hook portion 6512 located at an end of the arm portion 6511, and the arm portion 6511 has a certain elasticity. The hook 6512 projects outward from the arm 6511, and the hook 6512 includes a hook flat surface 6513 that abuts against the end surface of the second receiver 615, and a hook inclined surface 6514 that guides the hook 6512 through the bayonet 6151. In this embodiment, a plurality of the buckles 651 are uniformly distributed along the circumferential direction of the sealing ring pressing ring 65, and a plurality of the bayonets 6151 are provided and correspond to the buckles 651 one by one. When the sealing ring pressing ring 65 is installed, the sealing ring pressing ring 65 is installed into the bayonet 6151 of the fluid director shell 61 from bottom to top, in the installation process, the hook part inclined plane 6514 is limited by the inner wall of the bayonet 6151 and bends inwards, so that the hook part inclined plane 6514 smoothly enters the bayonet 6151, after the hook part inclined plane 6514 completely passes through the bayonet 6151, the buckle 651 is not limited by external force and resets, and the hook part plane 6513 is tightly abutted against the end face of the second bearing part 615, so that the up-and-down movement of the sealing ring pressing ring 65 is limited.

The deflector 62 is accommodated in the deflector housing 61 and connected to the first receiving portion 613. The side wall of the air guide sleeve 62 is provided with at least one third connecting column 621, and the third connecting column 621 extends upwards along the vertical direction. The first receiving portion 613 is correspondingly provided with a fourth connecting post (not shown) extending downward, and the third connecting post 621 is abutted against the fourth connecting post. Threaded holes are formed in the third connecting column 621 and the fourth connecting column, and a threaded fastener (not shown) is arranged between the third connecting column 621 and the fourth connecting column, so that the deflector 62 and the deflector shell 61 are connected. In this embodiment, the number of the third connecting posts 621 is two and the third connecting posts are oppositely disposed on two sides of the air guide sleeve 62, and the number of the fourth connecting posts is two. In other embodiments, the number of the connecting columns can be increased correspondingly according to actual needs. When the pod 62 is installed, the threaded fasteners are screwed down from above the first receiving portion 613 into the fourth connecting post 6132 and the third connecting post 621.

The bottom of the air guide sleeve 62 is positioned on the wind wheel inner shell 202 of the wind wheel assembly 200, and a second sealing ring 66 is arranged between the air guide sleeve 62 and the wind wheel inner shell 202. Specifically, the bottom of the air guide sleeve 62 is provided with a flange 622 in an outward protruding manner, the second sealing ring 66 comprises an annular second sleeving part 661 and a second sealing part 662 formed on the second sleeving part 661, a second caulking groove 6611 is formed in the inner wall of the second sleeving part 661 from inside to outside, the second caulking groove 6611 is formed circumferentially along the second sleeving part 661, the width of the second caulking groove 6611 is equal to or slightly smaller than the thickness of the flange 622, and the second sealing ring 66 is sleeved outside the flange 622 through the second caulking groove 6611.

The second sealing portion 662 protrudes downward and is bent outward with respect to the second hitching portion 661, and the second sealing portion 662 has certain elasticity. When nacelle 62 is attached to rotor inner shell 202, second seal 662 abuts rotor inner shell 202, thereby sealing the gap between nacelle 62 and rotor inner shell 202. Preferably, as shown in fig. 14, the second sealing ring 66 further includes at least one shock absorbing ring 663 formed on a lower end surface of the second hitching part 661, and the shock absorbing ring 663 contacts the wind turbine inner shell 202 and absorbs shock to the wind turbine assembly 200. Preferably, in the present embodiment, the number of the shock absorbing rings 663 is two. By providing the first and second seal rings 64 and 66, it is possible to effectively seal the gap between the guide passage 63 and the air inlet passage 203, preventing the leakage of the wind.

The nozzle assembly 100 includes a diffused air switching assembly 3, and the diffused air switching assembly 3 can switch between the first air outlet portion 101 and the second air outlet portion 102, so as to output air from one of the air outlet portions. The airflow blown out by the wind wheel assembly 200 enters the nozzle assembly 100 along the deflector assembly 6 and is blown out from one of the air outlet portions.

As shown in fig. 1 and 2, the diffused air switching assembly 3 is movably disposed on the nozzle inner casing 1 and is accommodated in the air accommodating cavity 103, and the diffused air switching assembly 3 is matched with the nozzle inner casing 1 to form a first air outlet channel 104 and a second air outlet channel 105. The first air outlet 104a is located on the first air outlet duct 104, the second air outlet 105a is located on the second air outlet duct 105, and the air diffusing switching assembly 3 can move towards the direction close to the first air outlet 104a or the direction close to the second air outlet 105a, so that the air diffusing switching assembly can selectively block the first air outlet duct 104 or the second air outlet duct 105, and the switching of air outlet is realized. Indeed, the diffuse air switching component 3 may also be located in the middle of the first air outlet 104a and the second air outlet 105a, so that the first air outlet 104 and the second air outlet 105 are both turned on. For convenience of description, in the present embodiment, an end of the bladeless fan blowing out from the first nozzle 11 is referred to as a first air outlet end 10, and an end of the bladeless fan blowing out from the second nozzle 12 is referred to as a second air outlet end 20.

As shown in fig. 2 to 4 and 8, the first nozzle 11 includes a first nozzle body 111 and first mating parts 112 protruding outward with respect to side walls of both sides of the first nozzle body 111. The first nozzle body 111 is provided with a first air guiding channel 111a penetrating along the direction from the first air outlet end 10 to the second air outlet end 20. The cross section of the first air guiding channel 111a is in an annular structure, the upper end and the lower end of the first air guiding channel 111a extend to the upper end and the lower end of the first nozzle main body 111 respectively, and one end of the first air guiding channel 111a close to the first air outlet end 10 is communicated with the outside through a first air guiding hole 211. As shown in fig. 3, the first nozzle body 111 includes a first end surface 111b facing the second air outlet end 20, the first end surface 111b is provided with a protrusion 1111 for being inserted into the second nozzle 12, and the protrusion 1111 protrudes outward from the first end surface 111 b. In the present embodiment, the projection 1111 is an annular projection provided along the profile of the end face.

The first mating portion 112 is located on the first nozzle main body 111 near the first air outlet end 10, and the first mating portion 112 is adapted to mate with the nozzle housing 2.

The first nozzle 11 and the diffused air switching member 3 cooperate to form a first air outlet duct 104. Specifically, the first mating portion 112 includes a mating portion end surface 112a, a first air outlet section 1041 of the first air outlet duct 104 is formed between the mating portion end surface 112a and the diffuse air switching assembly 3, and a second air outlet section 1042 is disposed at a connection position of the first mating portion 112 and the first nozzle main body 111. The first air outlet section 1041 and the second air outlet section 1042 are combined into an integral first air outlet duct 104. In other embodiments, the second outlet section 1042 may also be formed on the first nozzle body 111 separately, which is not limited herein. The airflow sequentially flows through the first air outlet section 1041, the second air outlet section 1042 and the first air outlet 104a and flows out along the first air guiding hole 211. Preferably, the air outlet direction of the first air outlet duct 104 is parallel to the hole wall of the first air guiding hole 211, so that the air flow can flow out along the hole wall of the first air guiding hole 211, and the air flow flowing-out distance is longer.

Preferably, the number of the first air outlets 104 is two, and the first air outlets are symmetrically disposed on both sides of the first nozzle body 111, so that the air can be simultaneously blown out from both sides of the first air guiding channel 111a, and further, the external air is guided to be blown out from the first air guiding channel 111a to the first air outlet end 10 along with the internal air.

Preferably, the second air outlet section 1042 of the first air outlet duct 104 is provided with a plurality of first ribs 113, and two ends of the first ribs 113 are respectively connected to the first mating portion 112 and the first nozzle body 111. Through setting up first strengthening rib 113, it can support first exhaust passage 104, avoids first exhaust passage 104 exit to warp.

As shown in fig. 2, 5, and 8, the second nozzle 12 has substantially the same structure as the first nozzle 11. The second nozzle 12 includes a second nozzle body 121 and second coupling parts 122 protruding outward with respect to both sides of the second nozzle body 121. The second nozzle body 121 is provided with a second air guiding channel 121a penetrating along the direction from the second air outlet end 20 to the first air outlet end 10, and one end of the second air guiding channel 121a close to the second air outlet end 20 is communicated with the outside through a second air guiding hole 221. Second wind-guiding passageway 121a is the same with first wind-guiding passageway 111a structure, the utility model discloses no longer describe herein. As shown in fig. 3, the second nozzle body 121 includes a second end surface 121b facing the first air outlet end 10, and the second end surface 121b is provided with a first groove 1211 recessed inward relative to the second end surface 121 b. In the present embodiment, the first groove 1211 is an annular groove provided along the end surface profile. The convex portion 1111 of the first nozzle 11 is inserted into the first concave portion 1211, so that the first nozzle 11 and the second nozzle 12 are connected, and the first air guiding passage 111a and the second air guiding passage 121a are coupled to form the complete air guiding passage 106. When the air in the fan is blown out from the first outlet 104a or the second outlet 105a, the external air can be guided by the air guiding channel 106 to blow toward the first outlet 10 or the second outlet 20 together with the internal air, so as to improve the blowing area and the blowing effect.

The second nozzle 12 and the diffused wind switching component 3 are matched to form a second wind outlet channel 105, the number of the second wind outlet channels 105 is two, and the second wind outlet channels 105 are symmetrically arranged on two sides of the second nozzle main body 121, so that the wind can be blown out from two sides of the second wind guide channel 121a at the same time, and the external wind is guided to be blown out to the second wind outlet end 20 along with the internal wind by the second wind guide channel 121 a. The second air outlet 105 includes a third air outlet 1051 and a fourth air outlet 1052, and the specific structure thereof can be referred to the description of the first air outlet 104, which is not repeated herein. Preferably, in this embodiment, the air outlet direction of the second air outlet channel 105 is inclined to the wall of the second air guiding hole 221, so that the air flow blown out through the second air guiding channel 121a is more diffused, and the blowing area is increased. Specifically, in the present embodiment, the fourth air-out section 1052 of the second air outlet duct 105 is disposed on the sidewall of the second nozzle main body 121, and the fourth air-out section 1052 is inclined towards the middle of the second air guiding hole 221. In order to further increase the inclination of the airflow flowing out of the fourth wind-out section 1052, the third wind-out section 1051 is also inclined towards the middle of the second wind guiding hole 221. Specifically, the second nozzle 12 further includes an air deflector 123 disposed on the second nozzle body 121, the air deflector 123 is provided with a guide portion 1231 inclined toward the middle of the second air guiding hole 221, the guide portion 1231 cooperates with the diffusive air switching assembly 3 to form a third air outlet section 1051, and the air flow is blown to the outside along the inclined third air outlet section 1051 and the inclined fourth air outlet section 1052 toward two sides of the second air guiding hole 221, so that the air flow blowing area is wider. In the present embodiment, the inclination angle of the guide portion 1231 is 30 ° to 60 °. The number of the air deflectors 123 is two, and the air deflectors are symmetrically disposed on two sides of the second nozzle body 121, so as to cooperate with the two second air outlets 105 on two sides of the second nozzle body 121. The fourth air-out section 1052 is also provided with a plurality of first strengthening ribs 113 arranged at intervals, which can support the second air-out duct 105 and avoid the deformation of the outlet of the second air-out duct 105.

As shown in fig. 2 and 9, the diffusive air switching assembly 3 includes two sets of swing assemblies 3a symmetrically disposed at both sides of the nozzle inner casing 1 and a driving assembly 3b driving the swing assemblies 3a to move. The two groups of swing components 3a move synchronously and respectively control the on-off of a first air outlet channel 104 and a second air outlet channel 105 which are positioned at two sides of the nozzle inner shell 1.

The swing assembly 3a includes a pulling plate 31, a pulling rod 32, and an opening and closing plate 33. The pulling plate 31 is arranged on the nozzle inner shell 1 and can move up and down relative to the nozzle inner shell 1, and the pulling plate 31 comprises a pulling plate main body 311 and a pulling plate connecting part 312 positioned at the upper end of the pulling plate main body 311. The pulling plate body 311 is provided with a sliding portion 3111, and the sliding portion 3111 is inclined toward the first air outlet 101 or the second air outlet 102, preferably at an angle of 30 ° to 60 °.

The pulling plate connecting portion 312 penetrates the second supporting seat 14 and is accommodated in the upper space of the nozzle housing 2, a first guide hole 3121 is formed in a side wall of the pulling plate connecting portion 312, the first guide hole 3121 has a long bar-shaped structure, and a long side thereof is opened in a horizontal direction. The output end of the driving assembly 3b is disposed in the first guiding hole 3121, and then drives the pulling plate 31 to move up and down. The upper end surface of the pulling plate connecting portion 312 is provided with a first mounting groove 3122 which is recessed downwards, the swing module 3a further comprises a driving plate 34, one side of the driving plate 34 is fixedly mounted in the first mounting groove 3122 of one group of the swing modules 3a, and the other side of the driving plate 34 is fixedly mounted in the first mounting groove 3122 of the other group of the swing modules 3 a. The two symmetrically arranged swing components 3a are connected through a transmission plate 34, and synchronous transmission is realized.

In the present embodiment, the pulling plate 31 is provided at a central position of the nozzle inner casing 1. In order to facilitate the up-and-down sliding of the pulling plate 31, the first nozzle 11 and the second nozzle 12 are provided with limiting plates 109 protruding outwards near the joint of the two, and a guide groove for guiding the pulling plate body 311 to move vertically is formed between the limiting plates 109. The width between the stopper plates 109 is the same as the width of the pulling plate main body 311 or slightly larger than the width of the pulling plate main body 311.

As shown in fig. 10, a sliding rod 321 protruding outward is provided at the middle portion of the back surface of the pulling rod 32, and the sliding rod 321 is provided in the sliding portion 3111 and can slide along the sliding portion 3111 by the pulling plate 31. The sliding portion 3111 may have a sliding slot structure or a sliding hole structure, and for convenience of assembly, in this embodiment, the sliding portion 3111 is specifically a long-strip-shaped sliding hole, and the sliding rod 321 is inserted into the sliding portion 3111, so that the pull rod 32 is slidably coupled with the pull plate 31. When the pulling plate 31 is raised or lowered, the sliding rod 321 is pressed by the side wall of the sliding portion 3111 and moves in the direction of the inclination of the sliding portion 3111.

The shutter plate 33 is slidably fitted to the nozzle inner casing 1. Specifically, the opening and closing plate 33 includes a second guide hole 33a protruding outward, the nozzle inner housing 1 is provided with a guide post 108 protruding outward and penetrating through the second guide hole 33a, and the opening and closing plate 33 can slide along the second guide hole 33a relative to the guide post 108. In this embodiment, the second guiding hole 33a is a long strip structure, and the long side thereof is disposed along the horizontal direction, and the inner width of the second guiding hole 33a is slightly larger than the outer diameter of the guiding pillar. The upper and lower ends of the shutter plate 33 are respectively in contact with the second support base 14 and the first support base 13, thereby restricting the movement of the shutter plate 33 in the up-down direction and preventing the shutter plate 33 from rotating about the guide post 108.

The shutter plate 33 includes a first shutter plate 331 slidably fitted to the first nozzle 11 and a second shutter plate 332 slidably fitted to the second nozzle 12. The two ends of the pull rod 32 are fixed to the first opening and closing plate 331 and the second opening and closing plate 332, respectively. When the pulling plate 31 moves upward or downward, it can provide a driving force for driving the pulling rod 32 to move toward the first air outlet portion 101 and the second air outlet portion 102 to the pulling rod 32, and then drive the first opening and closing plate 331 and the second opening and closing plate 332 to move together, and because of being limited by the guide pillar 108, the first opening and closing plate 331 and the second opening and closing plate 332 will move along the horizontal direction.

As shown in fig. 2, 4 and 5, the first opening/closing plate 331 cooperates with the mating end surface 112a of the first nozzle 11 to form the first air outlet segment 1041 of the first air outlet duct 104. The first opening and closing plate 331 includes an arc-shaped first air guiding surface 3311 and a second air guiding surface 3312 parallel to the end surface 112a of the mating portion, and when the first opening and closing plate 331 moves toward the first air outlet portion 101, the second air guiding surface 3312 can abut against the end surface 112a of the mating portion, so as to block the second air outlet section 1042. Preferably, the second wind guide surface 3312 and the fitting portion end surface 112a are flat surfaces, so that they can be easily molded and can be easily attached to each other. In other embodiments, the second wind guiding surface 3312 and the end surface 112a of the mating part may be other surfaces attached to each other, which is not limited herein.

The second opening and closing plate 332 and the guiding portion 1231 of the air guiding plate 123 cooperate to form the third air outlet section 1051 of the second air outlet channel 105. The second opening and closing plate 332 includes the curved third air guide surface 3321, the curved direction of the third air guide surface 3321 is the same as or substantially the same as the inclined direction of the guide portion 1231, and the third air outlet section 1051 can increase the air outlet angle of the fourth air outlet section 1052. When the second shutter plate 332 moves toward the second air outlet portion 102, the third air guide surface 3321 can contact the guide portion 1231, thereby blocking the fourth air outlet section 1052.

As shown in fig. 9, the driving assembly 3b is disposed on the second supporting seat 14, and the driving assembly 3b includes a first driving member 35 and a rotating disc 36 mounted on a first output shaft 351 of the first driving member 35. The first drive member 35 is embodied as a motor. The driving lever 361 is disposed at a position of the end surface of the rotary plate 36 near the outer side, and the driving lever 361 is inserted into the first guiding hole 3121 of the pulling plate 31. When the rotary disc 36 rotates, the shift lever 361 can rotate with the rotary disc 36, thereby driving the pulling plate 31 to move up and down.

The utility model discloses nozzle assembly's diffusion wind switching module theory of operation as follows: when the fan is started, airflow is blown out from the first air outlet duct 104 or the second air outlet duct 105, when the airflow direction needs to be switched, the first driving piece 35 is opened, the first driving piece 35 rotates and drives the rotary disc 36 to synchronously rotate, the driving lever 361 on the rotary disc 36 rotates and drives the pull plate 31 to move upwards or downwards, the pull plate 31 moves up and down and is converted into the pull rod 32 to move towards the first air outlet 104a or the second air outlet 105a, and when the pull rod moves towards the first air outlet 104a, the first opening and closing plate 331 can close the first air outlet duct 104, so that the airflow is blown out from the second air outlet duct 105; when the draw bar 32 moves toward the second outlet 105a, the second shutter plate 332 can close the second outlet duct 105, so that wind is blown out from the first outlet duct 104.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A bladeless fan is characterized by comprising a wind wheel assembly with a wind inlet channel and a flow guide assembly with a flow guide channel, wherein the wind wheel assembly is connected with the flow guide assembly and enables the wind inlet channel to be communicated with the flow guide channel, a second sealing ring for sealing the wind inlet channel and the flow guide channel is arranged between the wind wheel assembly and the flow guide assembly, and a damping ring in contact with the wind wheel assembly is arranged on the second sealing ring.

2. The bladeless fan of claim 1, wherein the inducer assembly includes an inducer housing and an inducer cage positioned within the inducer housing, the inducer passage being formed between the inducer housing and the inducer cage, and the second seal ring being disposed between the inducer cage and the wind wheel assembly.

3. The bladeless fan of claim 2, wherein the wind wheel assembly comprises an inner wind wheel shell and an outer wind wheel shell, the wind inlet channel is formed between the inner wind wheel shell and the outer wind wheel shell, the second sealing ring is embedded in the bottom of the air guide sleeve, and the second sealing ring abuts against the top of the inner wind wheel shell.

4. The bladeless fan of claim 3, wherein the bottom of the air guide cover is provided with a flange protruding outwards, the second sealing ring comprises a second sleeving part, the second sleeving part is provided with a second caulking groove along the circumferential direction of the second sleeving part, and the second sealing ring is sleeved outside the flange through the second caulking groove.

5. The bladeless fan of claim 4, wherein the second sealing ring further comprises a second sealing portion circumferentially formed along the second nesting portion, the second sealing portion protruding from a lower end surface of the second nesting portion, the second sealing portion abutting against a top portion of the wind wheel inner shell.

6. The bladeless fan of claim 4, wherein the damping ring is disposed on a lower end surface of the second sleeve portion, the damping ring protrudes downward relative to a lower end surface of the second sleeve portion, and the damping ring contacts with a top portion of the wind wheel inner shell.

7. The bladeless fan according to claim 1 or 6, wherein the damping ring is plural in number.

8. The bladeless fan according to claim 2, wherein the wind wheel assembly comprises a wind wheel inner shell and a wind wheel outer shell, the wind inlet channel is formed between the wind wheel inner shell and the wind wheel outer shell, a first sealing ring is embedded in the bottom of the deflector outer shell and abuts against the wind wheel outer shell, the first sealing ring comprises a first sleeving part, a first embedding groove is formed in the first sleeving part along the circumferential direction of the first sleeving part, and the first sleeving part is sleeved on the bottom of the deflector outer shell through the first embedding groove.

9. The bladeless fan of claim 8, wherein the first seal ring further comprises a first seal portion circumferentially formed along the first nesting portion, the first seal portion abutting a sidewall of the rotor housing.

10. The bladeless fan of claim 8, wherein the exducer housing is snap-fitted with a sealing ring compression ring, and the first nesting portion is captured between the sealing ring compression ring and the exducer housing.

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