CN107781143B

CN107781143B - Bladeless fan

Info

Publication number: CN107781143B
Application number: CN201711097261.XA
Authority: CN
Inventors: 应辉
Original assignee: Individual
Current assignee: Zhejiang Crossbow Brand Electric Appliance Co ltd
Priority date: 2017-10-15
Filing date: 2017-10-15
Publication date: 2023-08-22
Anticipated expiration: 2037-10-15
Also published as: CN107781143A

Abstract

The invention relates to a bladeless fan, which comprises a base body and an air outlet barrel arranged at the upper end of the base body, wherein an air inlet is formed in the side surface or the bottom of the base body, an impeller and a motor for generating air flow are arranged in the base body, a horn-shaped air outlet with a small upper part and a large lower part is arranged at the upper end of the base body, a connecting sleeve is arranged at the lower end of the air outlet barrel, a horn-shaped air inlet with a small upper part and a large lower part is arranged in the connecting sleeve, the large end of the horn-shaped air inlet is connected with the small end of the horn-shaped air outlet of the base body, the small end of the horn-shaped air inlet is connected with the bottom opening of the air outlet barrel, a vertical channel for receiving the air flow is arranged in the air outlet barrel, the center of the vertical channel is positioned on the same straight line with the centers of the horn-shaped air inlet and the horn-shaped air outlet, at least one row of air outlet narrow slits which are longitudinally distributed are arranged on the surface of the air outlet barrel, and the air flow received by the vertical channel is sprayed outwards from each air outlet narrow slit. The wind power generation device has the advantages of balanced and stable air flow, stability and comfort, large flow, strong wind power, reasonable structure, attractive appearance, low noise, convenient disassembly and assembly and the like.

Description

Bladeless fan

Technical Field

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

Background

In the prior art, a bladeless fan generally comprises a base and an annular nozzle supported by the base, wherein an air inlet is formed in the side face of the base, an air flow channel, an impeller and a motor for generating air flow are arranged in the base, an air outlet end of the base is connected with the air inlet end of the annular nozzle, the annular nozzle is provided with the annular channel for receiving the air flow and an annular exhaust port for spraying the air flow, and the annular nozzle is further provided with an annular opening for guiding external air to the vicinity of the annular exhaust port and mixing with the air flow sprayed from the annular exhaust port. The structural nozzle has the following defects when being used by users:

1. when the air flow is sucked from the side face of the base to be finally sprayed out from the annular air outlet, the transmission direction of the middle air flow is changed for a plurality of times, so that the air flow is easy to generate transmission loss, the air supply quantity of the fan is finally influenced, moreover, the air collecting structure between the air outlet end of the existing base and the annular nozzle adopts a suddenly-changed design, the air flow is not easy to transmit uniformly and stably, and when the air flow is blown to a human body, the air flow is easy to generate drastic wind impact and is not stable, so that people feel uncomfortable.

2. Since the air inlet is provided on the side surface of the base, and no reasonable silencing structure is provided, noise generated when the impeller sucks external air is diffused outwards through the air inlet, and is almost diffused under the condition of no blocking and silencing treatment, so that the noise of the fan is large, and the user experience is poor. Moreover, the side air inlet structure of the compact hemp on the base also affects the aesthetic appearance of the fan.

3. The base and the annular nozzle are either not detachable, or the detachable connecting assembly between the base and the annular nozzle is complex in structure, so that not only are more parts and high in cost, but also the disassembly and assembly procedures are complex, the production efficiency is low, meanwhile, the reliability is poor, and the disassembly and assembly are easy to loosen abnormally.

4. The basic air flow sprayed from the annular exhaust port is relatively dispersed and not concentrated, so that when the air conditioner is used relatively far away, the air flow generated from the nozzle is low in flow speed and flow, the air supply effect is not ideal, and the purpose of cooling a user quickly cannot be achieved.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the bladeless fan which has the advantages of balanced and stable air flow, stability and comfort, large flow, strong wind force, reasonable structure, attractive appearance, low noise and convenient disassembly and assembly.

The aim of the invention is realized by the following technical scheme:

the utility model provides a bladeless fan, includes base member and locates the play dryer of base member upper end, its characterized in that: the side or the bottom of base member is equipped with the air inlet, be equipped with impeller and the motor that is used for producing the air current in the base member, the upper end of base member is equipped with big-end-up's loudspeaker form gas outlet, still be equipped with the kuppe that is used for guiding the air current to in the loudspeaker form gas outlet in the base member, it is equipped with a adapter sleeve to go out the dryer lower extreme, be equipped with big-end-up's loudspeaker form inlet port in the adapter sleeve, the big end of this loudspeaker form inlet port with the loudspeaker form gas outlet tip of base member links to each other, the tip of this loudspeaker form inlet port with the bottom opening of play dryer links to each other, be equipped with the vertical passageway that receives the air current in the play dryer, the center of vertical passageway with loudspeaker form inlet port and the center of loudspeaker form gas outlet are in same straight line, play dryer surface is equipped with at least one row of longitudinal distribution's air outlet slot, the air current that vertical passageway received is followed each air outlet slot and outwards sprayed.

Further, the novel air inlet device further comprises a base arranged at the lower end of the base body, the bottom of the base body is provided with an opening, the end cover of the opening is provided with a bottom cover plate, the air inlet is arranged on the bottom cover plate, and an air inlet gap is formed between the bottom surface of the bottom cover plate and the top surface of the base.

Further, the air inlets are annularly distributed at the outer edge part of the bottom cover plate, the outer edge part of the bottom surface of the bottom cover plate is obliquely arranged from inside to outside, and the outer edge part of the top surface of the base is obliquely arranged from inside to outside to the lower, so that a horn-shaped air inlet gap is formed between the outer edge part of the bottom surface of the bottom cover plate and the outer edge part of the top surface of the base.

Further, an air guide cavity is arranged in the base body, the impeller and the motor are both arranged in the air guide cavity, the top surface of the bottom cover plate is provided with an annular silencing cavity opposite to the air inlet of the air guide cavity, and first silencing cotton is embedded in the annular silencing cavity.

Further, a silencing ring is arranged on the periphery of the air inlet of the air guide cavity in the base body, an annular groove is formed in the outer circumferential surface of the silencing ring, second silencing cotton is embedded in the annular groove, and a plurality of hollowed-out openings are formed in the peripheral wall of the silencing ring.

Furthermore, the upper end of the base body is also provided with an annular boss which is arranged around the periphery of the horn-shaped air outlet, and the connecting sleeve is sleeved on the annular boss and is detachably connected with the annular boss.

Further, be equipped with two at least draw-in grooves along circumference distribution on the annular boss, the draw-in groove comprises upper end open-ended first notch and the second notch that communicates with first notch, be equipped with two at least fixture blocks along circumference distribution on the inner wall of adapter sleeve, during the equipment, the fixture block inserts from the upper end opening of first notch to in the second notch is gone into to card after rotatory certain angle, still include at least one set of component establish annular boss with location arch and the positioning groove on the adapter sleeve, the location arch is in the fixture block card is gone into in the second notch card is gone into in the positioning groove.

Further, the adapter sleeve includes inside lining and suit and decorates the dustcoat in inside lining outside, the inside lining lower extreme be equipped with annular boss assorted annular cavity, the inside lining upper end be equipped with loudspeaker form inlet port, the fixture block with the constant head tank all sets up on the interior perisporium of this annular cavity, the location arch sets up on the perisporium of annular boss.

Further, a first flow dividing plate is arranged in the trumpet-shaped air inlet and equally divides the trumpet-shaped air inlet into two flow guide channels; a plurality of second flow dividing plates are arranged in the horn-shaped air outlet, and each second flow dividing plate evenly divides the horn-shaped air outlet into a plurality of flow guide ports.

Further, each air outlet narrow slit comprises two side walls, an upper wall and a lower wall, wherein the lower wall of the air outlet narrow slit positioned at the upper part of the air outlet barrel is provided with an inclined plane which is inclined from inside to outside, and the upper wall of the air outlet narrow slit positioned at the lower part of the air outlet barrel is provided with an inclined plane which is inclined from inside to outside to below.

Compared with the prior art, the invention has the following beneficial effects:

firstly, two mutually-connected horn-shaped air flow channels are arranged between the air outlet end of the base body and the bottom opening of the air outlet cylinder, and a plurality of spaces for compressing air flow step by step are formed between the two horn-shaped air flow channels and the vertical channel of the air outlet cylinder, so that the air flow is concentrated, the air quantity is improved, the air quantity is also kept balanced and stable, and the air sprayed from the air outlet cylinder is more stable and comfortable.

And secondly, the air flow is sucked from the outside of the base body and is conveyed into the vertical channel of the air outlet cylinder from bottom to top along the longitudinal direction, and the conveying direction is hardly changed in the whole conveying process, so that the conveying loss can be effectively avoided, the air quantity and the air speed are not influenced, and the air supply effect of the bladeless fan is further improved.

And the noise generated when the impeller sucks the external air can be further weakened by the silencing cavity and the silencing ring structure arranged below and at the periphery of the air inlet of the air guide cavity in the matrix, so that the noise is effectively relieved before the impeller is outwards diffused from the air inlet, and the bladeless fan has good silencing performance and good user experience. Meanwhile, the air inlet structure at the bottom of the invention also enables the air inlet to be invisible on the outer surface of the bladeless fan, thereby improving the aesthetic property of the product and being beneficial to the development of the product towards high-end trend.

Then, the air outlet of the air outlet cylinder is designed to be of a longitudinally distributed air outlet narrow slit structure, so that air flow is favorably concentrated into a whole stream to be sprayed forwards, and the air outlet quantity and the effective air supply distance of the fan are improved. The guiding inclined plane structure is designed in the air outlet narrow slit, so that the air flow sprayed outwards through the air outlet narrow slit can extend to the right front and can diffuse towards the upper side and the lower side, and the spraying range of the air flow is enlarged under the condition that the height of the air outlet barrel is not increased.

Finally, when the fan is assembled, the clamping blocks can be clamped into the clamping grooves and the positioning protrusions can be clamped into the positioning grooves only by inserting and rotating the fan barrel and the base body by a certain angle, so that the fan barrel and the base body are locked, and when the fan is disassembled, the base body is only needed to be pressed, and then the fan barrel is rotated by a corresponding angle in the opposite direction to the assembly direction, so that the fan barrel and the base body can be disassembled and loosened, and the fan barrel is convenient to assemble and disassemble, thereby not only being beneficial to improving the production and assembly efficiency of the bladeless fan, but also being convenient for storage, transportation and subsequent cleaning of the bladeless fan. Meanwhile, due to the two locking structures, the connection is reliable, and no unexpected loosening phenomenon occurs between the air outlet cylinder and the base body.

Drawings

Fig. 1 is a schematic front view of a bladeless fan according to the present invention.

Fig. 2 is a schematic cross-sectional view of a bladeless fan according to the present invention.

Fig. 3 is an exploded view of the base body, bottom cover plate and base of the present invention.

Fig. 4 is a schematic top perspective view of the bottom cover plate of the present invention.

Fig. 5 is an enlarged schematic view of a in fig. 1.

Fig. 6 is a schematic perspective view of the sound deadening ring according to the present invention.

Fig. 7 is a schematic perspective view of the second soundproof cotton of the present invention.

FIG. 8 is a schematic diagram showing a separation state of the air outlet tube and the base body in the invention.

Fig. 9 is a schematic perspective view of the air outlet tube according to the present invention.

Fig. 10 is an exploded view of the connection sleeve according to the present invention.

Detailed Description

The invention is described in further detail below with reference to examples given in the accompanying drawings.

As shown in fig. 1 to 10, the bladeless fan according to the present invention includes a base 1 and an air outlet barrel 2 disposed at the upper end of the base 1, wherein an air inlet 11 is disposed at the bottom of the base 1 (alternatively, the air inlet 11 may be disposed at the side of the base 1), an impeller 3 and a motor 4 for generating air flow are disposed in the base 1, a horn-shaped air outlet 12 with a small top and a large bottom is disposed at the upper end of the base 1, a connecting sleeve 21 is disposed at the lower end of the air outlet barrel 2, a horn-shaped air inlet 211 with a small top and a large bottom is disposed in the connecting sleeve 21, the large end of the horn-shaped air inlet 211 is connected with the small end of the horn-shaped air outlet 12 of the base 1, a vertical channel 23 for receiving air flow is disposed in the air outlet barrel 2, the center of the vertical channel 23 is in the same straight line with the center of the horn-shaped air inlet 211 and the horn-shaped air outlet 12, at least one row of air outlet slits 24 are disposed on the surface of the air outlet barrel 2, the width of the air outlet slits 24 is preferably 1.5-3mm, and the air flow received by the vertical channel 23 is ejected from the air outlet slits 24.

Further, the bladeless fan further comprises a base 5 arranged at the lower end of the base body 1, the bottom of the base body 1 is opened, a bottom cover plate 13 is arranged on the opening end 100 in a covering mode, the air inlet 11 is arranged on the bottom cover plate 13, and an air inlet gap 6 is formed between the bottom surface of the bottom cover plate 13 and the top surface of the base 5.

Preferably, the air inlets 11 are annularly distributed at the outer edge part of the bottom cover plate 13, the outer edge part of the bottom surface of the bottom cover plate 13 is obliquely arranged from inside to outside, and the outer edge part of the top surface of the base 5 is obliquely arranged from inside to outside to the lower, so that a horn-shaped air inlet gap 6 is formed between the outer edge part of the bottom surface of the bottom cover plate 13 and the outer edge part of the top surface of the base 5.

Further, an air guiding cavity 10 is arranged in the base body 1, the impeller 3 and the motor 4 are both arranged in the air guiding cavity 10, an annular silencing cavity 131 opposite to the air inlet 101 of the air guiding cavity 10 is arranged on the top surface of the bottom cover plate 13, first silencing cotton 132 is embedded in the annular silencing cavity 131, a guide cover 16 is arranged at the air outlet end of the air guiding cavity 10, and the guide cover 16 is used for guiding air flow at the air outlet end of the air guiding cavity 10 into the horn-shaped air outlet 12. The outer periphery of the air inlet 101 of the air guiding cavity 10 in the base body 1 is provided with a silencing ring 14, the outer circumferential surface of the silencing ring 14 is provided with an annular groove 141, the annular groove 141 is embedded with second silencing cotton 142, and the peripheral wall of the silencing ring 14 is provided with a plurality of hollowed-out openings 143. During operation, the noise generated by the impeller sucking the external air is firstly transmitted into the annular silencing cavity 131 to be sucked by the first silencing cotton 132, then transmitted back to the silencing ring 14 and sucked by the second silencing cotton 142 through the hollowed-out openings 143, so that the silencing and noise reducing effects are achieved.

Further, the upper end of the base body 1 is also provided with an annular boss 15 which is arranged around the periphery of the horn-shaped air outlet 12, and a connecting sleeve 21 is sleeved outside the annular boss 15 and is detachably connected with the annular boss 15.

Preferably, the annular boss 15 is provided with at least two clamping grooves 151 distributed along the circumferential direction, the clamping grooves 151 are composed of a first notch 1511 with an opening at the upper end and a second notch 1512 communicated with the first notch 1511, at least two clamping blocks 212 distributed along the circumferential direction are arranged on the inner wall of the connecting sleeve 21, when the annular boss is assembled, the clamping blocks 212 are inserted from the opening at the upper end of the first notch 1511 and clamped into the second notch 1512 after rotating for a certain angle, and the annular boss further comprises at least one group of positioning protrusions 150 and positioning grooves 210 which are arranged on the annular boss 15 and the connecting sleeve 21, and the positioning protrusions 150 are clamped into the positioning grooves 210 when the clamping blocks 212 are clamped into the second notch 1512.

Preferably, the connecting sleeve 21 comprises a lining 21a and a decorative outer cover 21b sleeved outside the lining 21a, an annular concave cavity 213 matched with the annular boss 15 is arranged at the lower end of the lining 21a, the horn-shaped air inlet 211 is arranged at the upper end of the lining 21a, the clamping block 212 and the positioning groove 210 are arranged on the inner peripheral wall of the annular concave cavity 213, and the positioning protrusion 150 is arranged on the outer peripheral wall of the annular boss 15.

Further, a first splitter plate 2111 is arranged in the trumpet-shaped air inlet 211, and the first splitter plate 2111 equally divides the trumpet-shaped air inlet 211 into two diversion channels; a plurality of second flow dividing plates 121 are arranged in the horn-shaped air outlet 12, and each second flow dividing plate 121 evenly divides the horn-shaped air outlet 12 into a plurality of flow guide ports. In this structure, the first and second flow dividing plates 2111 and 121 are designed to concentrate wind force, ensure that the air flow is conveyed forward along the direction defined by each flow guiding channel or flow guiding opening, and avoid the turbulence of the air flow during the conveying process, thereby enhancing the conveying efficiency of the air flow.

Further, each air outlet slot 24 includes two side walls 241, 242, an upper wall 243 and a lower wall 244, wherein the lower wall 244 of the air outlet slot 24 located at the upper portion of the air outlet duct 2 is configured as an inclined plane inclined from inside to outside, and the upper wall 243 of the air outlet slot 24 located at the lower portion of the air outlet duct 2 is configured as an inclined plane inclined from inside to outside to below. In operation, under the guiding action of the lower wall 244 of the air outlet narrow slit 24 at the upper part of the air outlet barrel 2 and the upper wall 243 of the air outlet narrow slit 24 at the lower part of the air outlet barrel 2, the air flow in the air outlet barrel 2 can be outwards sprayed out through each air outlet narrow slit and can extend in the right front direction and be diffused in the upper and lower side directions, so that the spraying range of the air flow can be enlarged under the condition of not increasing the height of the air outlet barrel.

Preferably, the lower wall 244 of the air outlet slot 24 at the upper part of the air outlet duct 2 has an inclination angle of 2-15 degrees, and the upper wall 243 of the air outlet slot 24 at the lower part of the air outlet duct 2 has an inclination angle of 2-15 degrees.

The foregoing description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, i.e., the invention is not limited to the specific embodiments described herein, but is to be accorded the full scope of the claims.

Claims

1. The utility model provides a bladeless fan, includes base member and locates the play dryer of base member upper end, its characterized in that: the side or the bottom of base member is equipped with the air inlet, be equipped with impeller and the motor that is used for producing the air current in the base member, the upper end of base member is equipped with big-end-up's loudspeaker form gas outlet, still be equipped with the kuppe that is used for guiding the air current to in the loudspeaker form gas outlet in the base member, it is equipped with a adapter sleeve to go out the dryer lower extreme, be equipped with big-end-up's loudspeaker form inlet port in the adapter sleeve, the big end of this loudspeaker form inlet port with the loudspeaker form gas outlet tip of base member links to each other, the tip of this loudspeaker form inlet port with the bottom opening of play dryer links to each other, be equipped with the vertical passageway that receives the air current in the play dryer, the center of vertical passageway with loudspeaker form inlet port and the center of loudspeaker form gas outlet are in same straight line, play dryer surface is equipped with at least one row of longitudinal distribution's air outlet slot, the air current that vertical passageway received is followed each air outlet slot and outwards sprayed.

2. A bladeless fan according to claim 1, wherein: the novel air inlet is characterized by further comprising a base arranged at the lower end of the base body, wherein the bottom of the base body is provided with an opening, the end cover of the opening is provided with a bottom cover plate, the air inlet is arranged on the bottom cover plate, and an air inlet gap is formed between the bottom surface of the bottom cover plate and the top surface of the base.

3. A bladeless fan according to claim 2, wherein: the air inlets are annularly distributed on the outer edge part of the bottom cover plate, the outer edge part of the bottom surface of the bottom cover plate is obliquely arranged from inside to outside, and the outer edge part of the top surface of the base is obliquely arranged from inside to outside to downwards, so that a horn-shaped air inlet gap is formed between the outer edge part of the bottom surface of the bottom cover plate and the outer edge part of the top surface of the base.

4. A bladeless fan according to claim 2 or 3, wherein: the base body is internally provided with an air guide cavity, the impeller and the motor are both arranged in the air guide cavity, the top surface of the bottom cover plate is provided with an annular silencing cavity opposite to the air inlet of the air guide cavity, and first silencing cotton is embedded in the annular silencing cavity.

5. A bladeless fan according to claim 4, wherein: the base member is interior to be located the periphery of wind-guiding cavity air intake is provided with a amortization ring, an annular groove has been seted up to the outer circumferential surface of amortization ring, the annular groove is embedded to be equipped with the second amortization cotton, a plurality of fretwork opening has been seted up on the perisporium of amortization ring.

6. A bladeless fan according to claim 1 or 2 or 3, wherein: the upper end of the base body is also provided with an annular boss which is arranged around the periphery of the horn-shaped air outlet, and the connecting sleeve is sleeved outside the annular boss and is detachably connected with the annular boss.

7. A bladeless fan according to claim 6, wherein: the annular boss is provided with at least two clamping grooves distributed along the circumferential direction, each clamping groove is composed of a first notch with an opening at the upper end and a second notch communicated with the first notch, at least two clamping blocks distributed along the circumferential direction are arranged on the inner wall of the connecting sleeve, during assembly, the clamping blocks are inserted from the opening at the upper end of the first notch and clamped into the second notch after rotating by a certain angle, and the annular boss is provided with a positioning protrusion and a positioning groove on the connecting sleeve, and the positioning protrusion is clamped into the second notch and is clamped into the positioning groove.

8. A bladeless fan according to claim 7, wherein: the connecting sleeve comprises a lining and a decorative outer cover sleeved outside the lining, an annular concave cavity matched with the annular boss is formed in the lower end of the lining, the upper end of the lining is provided with a trumpet-shaped air inlet hole, the clamping block and the positioning groove are both arranged on the inner peripheral wall of the annular concave cavity, and the positioning protrusion is arranged on the outer peripheral wall of the annular boss.

9. A bladeless fan according to claim 1 or 2 or 3, wherein: a first flow dividing plate is arranged in the trumpet-shaped air inlet and equally divides the trumpet-shaped air inlet into two flow guide channels; a plurality of second flow dividing plates are arranged in the horn-shaped air outlet, and each second flow dividing plate evenly divides the horn-shaped air outlet into a plurality of flow guide ports.

10. A bladeless fan according to claim 1 or 2 or 3, wherein: each air outlet narrow slit comprises two side walls, an upper wall and a lower wall, wherein the lower wall of the air outlet narrow slit positioned at the upper part of the air outlet barrel is provided with an inclined plane which is inclined from inside to outside, and the upper wall of the air outlet narrow slit positioned at the lower part of the air outlet barrel is provided with an inclined plane which is inclined from inside to outside to downwards.