CN210425417U - Non-wind induction fan - Google Patents
Non-wind induction fan Download PDFInfo
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- CN210425417U CN210425417U CN201921001730.8U CN201921001730U CN210425417U CN 210425417 U CN210425417 U CN 210425417U CN 201921001730 U CN201921001730 U CN 201921001730U CN 210425417 U CN210425417 U CN 210425417U
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Abstract
The utility model provides a non-wind-sensing fan, belonging to the technical field of air supply fans, which structurally comprises a casing and a fan, wherein an air outlet of the fan is connected with an air outlet channel; air-out passageway sets up to cross-section passageway gradual change enlargement type passageway, the otter board is cut apart to casing air-out intracavity is provided with the gas circuit, the otter board dams casing air-out chamber is cut apart to the gas circuit, the gas circuit is cut apart and has been seted up gas circuit cutting hole on the otter board, the casing air-out intracavity that the gas circuit was cut apart the air current low reaches department of otter board is provided with multiple wind cutting filter core, multiple wind cutting filter core dams casing air-out chamber, multiple wind cutting filter core is provided with fine and close air current cutting micropore, the casing air-out chamber of. The utility model discloses a otter board is cut apart to the gas circuit and is carried out the cutting of first wind, and the multiple wind cutting filter core of rethread carries out the overgrate air cutting, increases the air current turbulence, breaks up the air current, disturbs the directionality of air current, increases the softness that the mouth of blowing bloies, can realize human no wind sense again when both having guaranteed the amount of wind.
Description
Technical Field
The utility model belongs to the technical field of air supply fan technique and specifically relates to a no wind-sensing fan.
Background
Generally, with the improvement of living standard of people, the requirements of people on living quality are higher and higher, and the influence of modern machines on environmental quality, particularly air quality, is more and more serious, so as to meet the requirements of people on indoor high-quality air. The requirement of some human travelling comfort has been sacrificed for guaranteeing the fresh air volume to traditional new fan, and this is wherein just including the human wind sense of new trend exit, and when the wind speed was too high, a part moisture can be taken away through human surface to the air that flows, and these moisture are lost through the mode that the liquid aqueous gasification of skin surface is gaseous state water, and the heat of skin can be absorbed to this process, and then lets the human body feel cold, produces the discomfort.
Disclosure of Invention
The technical task of the utility model is to solve the not enough of prior art, provide a no wind-sensing fan.
The technical scheme of the utility model is realized in the following way, the structure of the wind-sensing-free fan comprises a casing and a fan, and the air outlet of the fan is connected with an air outlet channel; the air outlet channel is arranged into a cross section channel gradually-changing and expanding channel, the airflow upstream end of the air outlet channel is arranged into a necking end, the airflow downstream end of the air outlet channel is arranged into a wide-mouth end, the necking end of the air outlet channel is communicated with an air outlet of the fan, and the wide-mouth end of the air outlet channel is communicated with the air outlet cavity of the shell;
an air path dividing screen plate is arranged in the air outlet cavity of the casing, the air path dividing screen plate intercepts the air outlet cavity of the casing, air path dividing holes are arranged on the air path dividing screen plate,
the gas path dividing hole is a gradually-changed hole with a small airflow upstream orifice and a large airflow downstream orifice,
the casing air-out intracavity that the otter board was cut apart to the air course department of air current low reaches is provided with multiple wind cutting filter core, and multiple wind cutting filter core dams casing air-out chamber, and multiple wind cutting filter core is provided with fine and close air current cutting micropore, and the casing air-out chamber of the air current low reaches department of multiple wind cutting filter core is provided with the mouth of blowing.
The fan adopts a volute fan, the trend of the volute is involute, the volute output end of the volute fan is set as a fan air outlet, and the fan air outlet is fixedly communicated with the necking end of the air outlet channel.
A noise meter is arranged on an air outlet cavity of the shell at the downstream of the multi-air cutting filter element and is connected with a noise signal comparator, the noise signal comparator is connected with a fan rotating speed controller, the fan rotating speed controller is connected with a working motor of the fan, the noise meter feeds back a noise signal to the noise signal comparator, the noise signal comparator judges the strength of the compared noise signal, the noise signal comparator feeds back a control signal to the fan rotating speed controller, and the fan rotating speed controller controls the working motor of the fan to adjust the rotating speed of the fan;
when the noise signal obtained by the noise signal comparator is greater than the preset signal, feeding back a control signal to the fan rotating speed controller, and adjusting and reducing the fan rotating speed;
when the noise signal obtained by the noise signal comparator is smaller than the preset signal, the control signal is fed back to the fan rotating speed controller, and the rotating speed of the fan is adjusted and increased.
One design scheme of the gas path dividing screen plate is as follows:
the gas path division screen plate is formed by arranging mutually parallel battens in the same plane at equal intervals, the interval arranged between two adjacent battens forms a gas path division hole, the battens are all arranged to be isosceles trapezoid-shaped battens, the long bottom edge of the isosceles trapezoid is arranged at the upstream of the gas flow, the short bottom edge of the isosceles trapezoid is arranged at the downstream of the gas flow, and a gradually-changed gas path division hole with a small gas flow upstream hole opening and a large gas flow downstream hole opening is formed between the two adjacent battens.
A straight path airflow guide wall is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and the air path dividing holes of the air path dividing otter board, the straight path airflow guide wall adopts a flat structure,
the straight-path airflow guide wall extends from the airflow upstream orifice of the air path dividing hole to the air outlet of the fan at the airflow upstream,
the adjacent straight-path airflow guide walls form a straight-path airflow channel.
Another design scheme of the gas path dividing screen plate is as follows:
the gas path cutting net plate is provided with gas path cutting holes which are uniformly distributed on the plate surface, the gas path cutting holes are round holes, square holes or multi-edge holes, and the gas path cutting holes are gradually changed holes with small upstream orifices and large downstream orifices.
A straight air flow guide wall is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and each air path dividing hole of the air path dividing screen plate,
the straight path airflow flow guide wall adopts a cone-shaped structure, the airflow upstream locking port end of the cone extends to the air outlet of the fan, and the airflow downstream wide-mouth end of the cone is communicated with the upstream orifice of the air path segmentation hole.
The multiple wind cutting filter element adopts a stainless steel filter screen or a breathable fabric filter element; the multiple wind cutting filter element and the gas circuit partition screen plate are spaced.
The working motor of the fan adopts a uniform-speed motor to drive the fan of the centrifugal impeller, and the power of the uniform-speed motor is provided by a power supply grid.
The air suction opening axial direction of fan sets up in the horizontal direction, and the fan air outlet sets up, and the vertical setting of air-out passageway, the mouth of blowing in casing air-out chamber sets up.
Compared with the prior art, the utility model produced beneficial effect is:
the utility model discloses a problem of the human wind sense of fan air outlet is solved mainly to no wind sense fan, the main means is the reposition of redundant personnel wind path, cut apart the otter board through the gas circuit and carry out the cutting of primary wind, the multiple wind cutting filter core of rethread carries out the secondary wind cutting, reduce the wind speed at this in-process, it is more even to make the mouth air-out of blowing, the air-out area grow, the wind speed is slow, increase the air current turbulence, avoid traditional wind beam type air supply, break up the air current, the directionality of upset air current, increase the softness of blowing of mouth, can realize human no wind sense when both having guaranteed the amount of wind again.
Performing primary wind cutting and shunting wind path through the gas path cutting screen plate; gradually increasing the air passage and reducing the wind speed. The static pressure of the airflow is increased, so that the airflow can pass through the multi-wind cutting filter element more easily.
The multiple wind cutting filter element increases airflow turbulence, breaks up wind source airflow and disturbs the direction of the airflow.
The utility model discloses a no wind-sensing fan reasonable in design, simple structure, safe and reliable, convenient to use, easy to maintain have fine using value widely.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment and a second embodiment of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic partial structure diagram of a third embodiment of the present invention;
fig. 4 is a schematic partial structure diagram of a fourth embodiment of the present invention.
The reference numerals in the drawings denote:
1. a shell 2, a fan 3, a fan outlet 4 and an air outlet channel,
5. a necking end of the air outlet channel, 6, a wide opening end of the air outlet channel,
7. the air outlet cavity of the machine shell is provided with an air inlet,
8. a gas path dividing screen plate 9, gas path dividing holes,
10. a multi-wind cutting filter element 11, a compact airflow cutting micropore,
12. an air-blowing opening is arranged at the air-blowing opening,
13. a noise meter 14, a noise signal comparator 15, a fan rotating speed controller 16, a working motor of the fan,
17. laths, 18, a long bottom edge, 19, a short bottom edge, 20, a straight air flow guide wall, 21, a straight air flow channel,
22. a cone.
Detailed Description
The wind-less fan of the present invention will be described in detail below with reference to the accompanying drawings.
The first embodiment is as follows:
the utility model discloses a non-wind-sensing fan, which comprises a casing 1 and a fan 2, wherein the fan 2 is arranged in the casing 1, an opening at the air inlet of the fan on the casing 1 is communicated and opened with the outside, and an air outlet 3 of the fan is connected with an air outlet channel 4; the air outlet channel 4 is arranged as a gradually-changing and expanding channel with a section channel, the airflow upstream end of the air outlet channel is arranged as a reducing end, the airflow downstream end of the air outlet channel is arranged as a wide-mouth end, the reducing end of the air outlet channel is communicated with the air outlet 3 of the fan, and the wide-mouth end of the air outlet channel is communicated with the air outlet cavity 7 of the shell;
a gas path dividing screen plate 8 is arranged in the casing air outlet cavity 7, the gas path dividing screen plate 8 intercepts the casing air outlet cavity 7, a gas path dividing hole 9 is arranged on the gas path dividing screen plate,
the gas path dividing hole is a gradually-changed hole with a small airflow upstream orifice and a large airflow downstream orifice,
the air path is divided the casing air-out intracavity of the air current low reaches department of otter board and is provided with multiple wind cutting filter core 10, multiple wind cutting filter core 10 adopts the multiple wind cutting filter core 10 that has certain thickness, preferred thickness is not less than 5 centimetres, multiple wind cutting filter core cuts off casing air-out chamber, multiple wind cutting filter core is provided with fine and close air current cutting micropore 11, the micropore pore of fine and close air current cutting micropore 11 adopts the irregular curvilinear shape micropore pore of nonlinear line, the casing air-out chamber of the air current low reaches department of multiple wind cutting filter core 10 is provided with blowing port 12, the blowing port accesss to the casing external world.
The fan 2 adopts a volute fan, the trend of the volute is an involute trend, the volute output end of the volute fan is set as a fan air outlet 3, and the fan air outlet is fixedly communicated with a necking end 5 of an air outlet channel.
Example two:
the design scheme of the expansion on the basis of the first embodiment is as follows:
a noise meter 13 is arranged on the casing air outlet cavity 7 at the downstream of the multiple air cutting filter element 10, the noise meter 13 is connected with a noise signal comparator 14, the noise signal comparator 14 is connected with a fan rotating speed controller 15, the fan rotating speed controller 15 is connected with a working motor 16 of a fan, the noise meter feeds back a noise signal to the noise signal comparator, the noise signal comparator presets the noise to be 60 decibels or 80 decibels, the noise signal comparator 14 judges the strength of the compared noise signal according to the preset signal, the noise signal comparator 14 feeds back a control signal to the fan rotating speed controller, and the fan rotating speed controller controls the working motor of the fan to adjust the rotating speed of the fan;
when the noise signal obtained by the noise signal comparator is greater than the preset signal, feeding back a control signal to the fan rotating speed controller, and adjusting and reducing the fan rotating speed; wind noise is reduced;
when the noise signal obtained by the noise signal comparator is smaller than the preset signal, the control signal is fed back to the fan rotating speed controller, and the rotating speed of the fan is adjusted and increased.
Example three:
the cutting expansion design scheme for the upstream airflow of the gas path division screen plate in the first embodiment is as follows:
the gas path division screen plate is formed by arranging mutually parallel battens 17 on the same plane at equal intervals, the intervals arranged between two adjacent battens form gas path division holes, the battens are all arranged to be isosceles trapezoid-shaped battens, the isosceles trapezoid-shaped long bottom edge 18 is arranged at the upstream of the gas flow, the isosceles trapezoid-shaped short bottom edge 19 is arranged at the downstream of the gas flow, and a gradually-changed gas path division hole with a small gas flow upstream hole opening and a large gas flow downstream hole opening is formed between two adjacent battens.
A straight path airflow guide wall 20 is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and the air path dividing holes of the air path dividing otter board, the straight path airflow guide wall adopts a flat structure,
the straight-path airflow guide wall extends from the airflow upstream orifice of the air path dividing hole to the air outlet of the fan at the airflow upstream,
a straight air flow channel 21 is formed between the adjacent straight air flow guide walls.
Example four:
another cutting expansion design scheme for the upstream airflow of the gas path division screen plate in the first embodiment is as follows:
the gas path cutting net plate is provided with gas path cutting holes which are uniformly distributed on the plate surface, the gas path cutting holes are round holes, square holes or multi-edge holes, and the gas path cutting holes are gradually changed holes with small upstream orifices and large downstream orifices.
A straight air flow guide wall is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and each air path dividing hole of the air path dividing screen plate,
the straight-path airflow diversion wall adopts a cone-shaped structure, the airflow upstream locking port end of the cone 22 extends to the air outlet of the fan, and the airflow downstream wide-mouth end of the cone is communicated with the upstream orifice of the air path segmentation hole.
The multiple wind cutting filter element of the non-wind-sensing fan adopts a stainless steel filter screen or a breathable fabric filter element; the multiple wind cutting filter element and the gas circuit partition screen plate are spaced.
The utility model discloses a work motor of fan can adopt the fan of at the uniform velocity motor drive centrifugal impeller, and the electric power of at the uniform velocity motor is provided by the power supply electric wire netting. Or other types of motors may be used.
The utility model discloses an inlet scoop axial of fan sets up at the horizontal direction, and the fan air outlet sets up, the vertical setting of air-out passageway, the mouth of blowing in casing air-out chamber sets up.
Claims (10)
1. The non-wind-sensing fan is characterized by comprising a shell and a fan, wherein an air outlet of the fan is connected with an air outlet channel; the air outlet channel is arranged into a cross section channel gradually-changing and expanding channel, the airflow upstream end of the air outlet channel is arranged into a necking end, the airflow downstream end of the air outlet channel is arranged into a wide-mouth end, the necking end of the air outlet channel is communicated with an air outlet of the fan, and the wide-mouth end of the air outlet channel is communicated with the air outlet cavity of the shell;
an air path dividing screen plate is arranged in the air outlet cavity of the casing, the air path dividing screen plate intercepts the air outlet cavity of the casing, air path dividing holes are arranged on the air path dividing screen plate,
the gas path dividing hole is a gradually-changed hole with a small airflow upstream orifice and a large airflow downstream orifice,
the casing air-out intracavity that the otter board was cut apart to the air course department of air current low reaches is provided with multiple wind cutting filter core, and multiple wind cutting filter core dams casing air-out chamber, and multiple wind cutting filter core is provided with fine and close air current cutting micropore, and the casing air-out chamber of the air current low reaches department of multiple wind cutting filter core is provided with the mouth of blowing.
2. The non-wind-sensing fan according to claim 1, wherein: the fan adopts a volute fan, the trend of the volute is involute, the volute output end of the volute fan is set as a fan air outlet, and the fan air outlet is fixedly communicated with the necking end of the air outlet channel.
3. The non-wind-sensing fan according to claim 1, wherein: a noise meter is arranged on an air outlet cavity of the shell at the downstream of the multi-air cutting filter element and is connected with a noise signal comparator, the noise signal comparator is connected with a fan rotating speed controller, the fan rotating speed controller is connected with a working motor of the fan, the noise meter feeds back a noise signal to the noise signal comparator, the noise signal comparator judges the strength of the compared noise signal, the noise signal comparator feeds back a control signal to the fan rotating speed controller, and the fan rotating speed controller controls the working motor of the fan to adjust the rotating speed of the fan;
when the noise signal obtained by the noise signal comparator is greater than the preset signal, feeding back a control signal to the fan rotating speed controller, and adjusting and reducing the fan rotating speed;
when the noise signal obtained by the noise signal comparator is smaller than the preset signal, the control signal is fed back to the fan rotating speed controller, and the rotating speed of the fan is adjusted and increased.
4. The non-wind-sensing fan according to claim 1, wherein: the gas path division screen plate is formed by arranging mutually parallel battens in the same plane at equal intervals, the interval arranged between two adjacent battens forms a gas path division hole, the battens are all arranged to be isosceles trapezoid-shaped battens, the long bottom edge of the isosceles trapezoid is arranged at the upstream of the gas flow, the short bottom edge of the isosceles trapezoid is arranged at the downstream of the gas flow, and a gradually-changed gas path division hole with a small gas flow upstream hole opening and a large gas flow downstream hole opening is formed between the two adjacent battens.
5. The non-wind-sensing fan according to claim 4, wherein: a straight path airflow guide wall is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and the air path dividing holes of the air path dividing otter board, the straight path airflow guide wall adopts a flat structure,
the straight-path airflow guide wall extends from the airflow upstream orifice of the air path dividing hole to the air outlet of the fan at the airflow upstream,
the adjacent straight-path airflow guide walls form a straight-path airflow channel.
6. The non-wind-sensing fan according to claim 1, wherein: the gas path cutting net plate is provided with gas path cutting holes which are uniformly distributed on the plate surface, the gas path cutting holes are round holes, square holes or multi-edge holes, and the gas path cutting holes are gradually changed holes with small upstream orifices and large downstream orifices.
7. The non-wind-sensing fan according to claim 6, wherein: a straight air flow guide wall is arranged between the air outlet of the fan at the upstream end of the air flow of the air outlet channel and each air path dividing hole of the air path dividing screen plate,
the straight path airflow flow guide wall adopts a cone-shaped structure, the airflow upstream locking port end of the cone extends to the air outlet of the fan, and the airflow downstream wide-mouth end of the cone is communicated with the upstream orifice of the air path segmentation hole.
8. The non-wind-sensing fan according to claim 1, wherein: the multiple wind cutting filter element adopts a stainless steel filter screen or a breathable fabric filter element; the multiple wind cutting filter element and the gas circuit partition screen plate are spaced.
9. The non-wind-sensing fan according to claim 1, wherein: the working motor of the fan adopts a uniform-speed motor to drive the fan of the centrifugal impeller, and the power of the uniform-speed motor is provided by a power supply grid.
10. The non-wind-sensing fan according to claim 1, wherein: the air suction opening axial direction of fan sets up in the horizontal direction, and the fan air outlet sets up, and the vertical setting of air-out passageway, the mouth of blowing in casing air-out chamber sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001730.8U CN210425417U (en) | 2019-06-28 | 2019-06-28 | Non-wind induction fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001730.8U CN210425417U (en) | 2019-06-28 | 2019-06-28 | Non-wind induction fan |
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| Publication Number | Publication Date |
|---|---|
| CN210425417U true CN210425417U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921001730.8U Active CN210425417U (en) | 2019-06-28 | 2019-06-28 | Non-wind induction fan |
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| CN (1) | CN210425417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023051220A1 (en) * | 2021-09-30 | 2023-04-06 | 深圳市蓝禾技术有限公司 | Portable fan |
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2019
- 2019-06-28 CN CN201921001730.8U patent/CN210425417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023051220A1 (en) * | 2021-09-30 | 2023-04-06 | 深圳市蓝禾技术有限公司 | Portable fan |
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