WO2024001089A1 - 一种气流发生装置及加湿器 - Google Patents

一种气流发生装置及加湿器 Download PDF

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Publication number
WO2024001089A1
WO2024001089A1 PCT/CN2022/140752 CN2022140752W WO2024001089A1 WO 2024001089 A1 WO2024001089 A1 WO 2024001089A1 CN 2022140752 W CN2022140752 W CN 2022140752W WO 2024001089 A1 WO2024001089 A1 WO 2024001089A1
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WO
WIPO (PCT)
Prior art keywords
generating device
airflow generating
wind wheel
volute
removal
Prior art date
Application number
PCT/CN2022/140752
Other languages
English (en)
French (fr)
Inventor
高飞
李芯怡
陈凯鹏
徐锦元
刘旭美
林志荣
Original Assignee
珠海格力电器股份有限公司
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Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2024001089A1 publication Critical patent/WO2024001089A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements

Definitions

  • the present disclosure relates to the technical field of household appliances, and in particular to an air flow generating device and a humidifier.
  • a humidifier is a household appliance that increases room humidity and can humidify a designated room. Humidity has a huge impact on people's lives and health. With the improvement of people's living standards, the widespread use of air conditioners has led to the occurrence of air conditioning diseases such as tight skin, dry mouth and tongue, coughs and colds. It has been scientifically proven that air humidity is closely related to human health and daily life. Medical research shows that when the room humidity reaches 45-65% RH and the temperature is 20-25 degrees, the human body and mind are in a good state, and ideal effects can be achieved regardless of work or rest.
  • a bladeless fan which includes a base assembly and a machine head.
  • An accommodation chamber is formed in the base body, and a volute is provided in the accommodation chamber.
  • a wind wheel assembly is detachably connected to the volute.
  • the wind wheel assembly includes a wind wheel body.
  • a mounting portion is provided in the wind wheel body.
  • the motor shaft is inserted into the mounting hole. The end of the motor shaft is connected with a knob.
  • the motor shaft knob is tightened and fixed so that the wind wheel assembly can be detachably installed on the volute. superior.
  • the user can remove the impeller from the motor and clean it.
  • the knob becomes loose the wind wheel will easily come out, affecting the operation of the entire machine.
  • the technical problem to be solved by the present disclosure is to overcome the defect in the related art that the wind wheel of the air flow generating device is easy to come out, which affects the operation of the whole machine, thereby providing an air flow generating device and humidifier with better safety.
  • the first aspect of the present disclosure provides an airflow generating device, which includes a housing, a rotation source, a wind wheel and an anti-removal member.
  • the housing has an air inlet, an air outlet and an air duct connected between the air inlet and the air outlet.
  • the rotation source is fixedly mounted on the housing.
  • the wind wheel is arranged in the air duct, and the wind wheel is detachably connected to the rotating shaft of the rotation source.
  • the anti-separation piece is detachably connected to the casing and is located on the side of the wind wheel away from the rotation source. When the anti-separation piece is connected to the casing, the distance between the anti-separation piece and the center line of the air inlet is smaller than the radius of the wind wheel.
  • the anti-removal member is an annular air deflector.
  • the inner diameter of the air deflector is D1, and D1 is greater than 70 mm and smaller than the diameter of the wind wheel.
  • the housing includes:
  • the right volute, the rotation source is fixedly installed on the right volute
  • the left volute can be docked with the right volute, the air duct is formed between the left volute and the right volute, the air inlet is formed on the left volute, and the anti-separation piece is detachably connected to the left volute.
  • the anti-removal piece and the left volute engage with each other; or,
  • a first turnbuckle 44 and a first turnbuckle groove 111 are provided on one of the anti-separation piece and the left volute, and a turnbuckle matching the turnbuckle groove is provided on the other of the anti-separation piece and the left volute.
  • the airflow generating device further includes an anti-detachment knob, the rotation shaft of the rotation source passes through the rotation shaft hole of the wind wheel, and the anti-detachment knob is threadedly connected to the end of the rotation shaft.
  • the anti-detachment knob includes:
  • Metal nut which is threadedly connected to the rotating shaft
  • the anti-slip knob is located outside the metal nut and is fixedly connected to the metal nut.
  • a mounting groove is formed on the side of the right volute away from the left volute, and the rotation source is arranged in the mounting groove.
  • the right volute further includes an anti-removal cover connected to the groove wall of the mounting groove, The anti-removal cover is located on the side of the rotation source away from the rotation shaft and offsets the rotation source.
  • the anti-removal cover and the installation groove are connected through a one-way buckle.
  • the one-way buckle includes a third engaging portion and a fourth engaging portion suitable for engaging with each other.
  • the third engaging portion is provided on On one of the anti-removal cover and the installation groove, the fourth engaging part is provided on the other of the anti-removal cover and the installation groove.
  • the anti-removal cover and the installation groove are also connected through a guide structure.
  • one of the anti-removal cover and the installation groove is provided with a second turnbuckle, and the other is provided with a second turnbuckle groove that is adapted to the second turnbuckle.
  • the anti-detachment cover is provided with a support frame facing the rotation source, and the support frame is adapted to support and limit the rotation source.
  • the air flow generating device further includes a filter screen covering the air inlet of the housing.
  • the anti-removal member is located between the filter screen and the wind wheel, and a pressing portion is formed on the side away from the wind wheel, and the pressing portion abuts against the filter screen.
  • the second aspect of the present disclosure relates to a humidifier, including the air flow generating device of the first aspect of the present disclosure.
  • the airflow generating device of the first aspect of the present disclosure has an anti-separation piece on the casing located on the side of the wind wheel away from the rotation source.
  • the anti-separation piece is detachably connected to the casing and is provided.
  • the distance from the center line of the air inlet is less than the radius of the wind wheel. Therefore, even if the connection between the rotating source and the wind wheel is not strong enough, the anti-detachment piece can prevent the wind wheel from falling out during use, which will affect the operation of the entire machine.
  • the airflow generating device of the first aspect of the present disclosure can overcome the defects of the airflow generating device in the related art that the wind wheel is easy to come out, which affects the operation of the whole machine, and has better safety.
  • the airflow generating device of the present disclosure has a simple structure, is easy to manufacture, is practical, safe and reliable, and is easy to implement, promote and apply.
  • the humidifier of the second aspect of the disclosure includes or uses the air flow generating device of the first aspect of the disclosure, so it has the effect of the air flow generating device of the first aspect of the disclosure, that is, it can overcome the problems of the air flow generating device in the related art.
  • the wind wheel is easy to come out, causing defects that affect the operation of the whole machine, and has better safety.
  • the humidifier of the present disclosure has a simple structure, is easy to manufacture, is practical, safe and reliable, and is easy to implement, promote and apply.
  • Figure 1 shows an exploded view of the airflow generating device according to Embodiment 1 of the present disclosure
  • Figure 2 is a cross-sectional view of the airflow generating device in Embodiment 1 of the present disclosure at an angle;
  • Figure 3 is a cross-sectional view of the airflow generating device in Embodiment 1 of the present disclosure from another angle;
  • Figure 4 is an exploded view of the airflow generating device in Embodiment 1 of the present disclosure from another angle;
  • Figure 5 is a perspective view of the anti-removal knob of the airflow generating device according to Embodiment 1 of the present disclosure at an angle;
  • Figure 6 is a perspective view of the anti-detachment knob of the airflow generating device according to Embodiment 1 of the present disclosure from another angle;
  • Figure 7 is an exploded view of the anti-off knob of the airflow generating device according to Embodiment 1 of the present disclosure
  • Figure 8 is an anti-removal piece of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 9 is an anti-removal cover of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 10 is an air inlet grille of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 11 is a left view of the airflow generating device in an assembled state according to Embodiment 1 of the present disclosure, and its air inlet grille is not shown;
  • Figure 12 is the left volute of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 13 is an enlarged view of point A in Figure 12;
  • Figure 14 is the left volute of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 15 is the right volute of the airflow generating device in Embodiment 1 of the present disclosure.
  • Figure 16 is the right volute of the airflow generating device in Embodiment 1 of the present disclosure.
  • Figure 17 is a schematic diagram of the airflow direction in the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 18 is a cross-sectional view of the airflow generating device according to Embodiment 1 of the present disclosure.
  • the anti-detachment knob is selected as a nut;
  • Figure 19 is an anti-removal cover of the airflow generating device according to Embodiment 2 of the present disclosure.
  • Figure 20 is an anti-removal piece of the airflow generating device according to Embodiment 2 of the present disclosure.
  • Figure 21 shows the anti-removal member of the airflow generating device according to Embodiment 2 of the present disclosure from another angle.
  • Air flow generating device 1. Shell; 11. Left volute; 111. First twist groove; 1111. Gap; 1112. Blocking ribs; 1113. Avoidance gap; 12. Right volute; 121. Installation recess Groove; 1213, guide groove; 1214, support ribs; 122, anti-removal cover; 1223, support frame; 1224, second turnbuckle; 1225, guide convex portion; 1226, heat dissipation hole; 13, air inlet; 14 , air duct; 15. air outlet; 16. air inlet grille; 161. filter installation slot; 2. rotation source; 21. rotating shaft; 3. wind wheel; 4. anti-separation piece; 42. pressing part; 43 , the first engaging part; 44. the first turnbuckle; 441. the first section; 442. the second section; 5. filter; 6. anti-off knob; 61. metal nut; 62. anti-slip knob; 71. The third engaging part; 72. The fourth engaging part; 8. Nut.
  • connection should be understood in a broad sense.
  • connection or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • FIG. 1 shows an exploded view of the airflow generating device according to Embodiment 1 of the present disclosure.
  • Figure 2 is a cross-sectional view of the airflow generating device in Embodiment 1 of the present disclosure at an angle.
  • Figure 3 is a cross-sectional view of the airflow generating device in Embodiment 1 of the present disclosure from another angle.
  • Figure 4 is an exploded view of the airflow generating device in Embodiment 1 of the present disclosure from another angle.
  • the present disclosure relates to an airflow generating device 100, which includes a housing 1, a rotation source 2, a wind wheel 3 and an anti-removal piece 4.
  • the housing 1 has an air inlet 13 , an air outlet 15 and an air duct 14 connected between the air inlet 13 and the air outlet 15 .
  • the rotation source 2 is fixedly mounted on the housing 1 .
  • the wind wheel 3 is disposed in the air duct 14 and is detachably connected to the rotating shaft 21 of the rotating source 2 .
  • the anti-removal piece 4 is detachably connected to the housing 1 and is located on the side of the wind wheel 3 away from the rotation source 2. When the anti-removal piece 4 is connected to the housing 1, the anti-removal piece 4 is between the center line of the air inlet 13 and the center line of the air inlet 13. The distance is less than the radius of the wind wheel 3.
  • the rotation source 2 can be selected as a device capable of outputting rotation, such as a motor, an engine, a hydraulic motor, or a combination of one of them and a reducer.
  • the airflow generating device 100 of this embodiment is provided with an anti-removal piece 4 on the housing 1 located on the side of the wind wheel 3 away from the rotation source 2 .
  • the anti-removal piece 4 is detachably connected to the housing 1 and is arranged such that the distance from the center line of the air inlet 13 is smaller than the radius of the wind wheel 3 . Therefore, even if the connection between the rotation source 2 and the wind wheel 3 is not strong enough, the anti-detachment piece 4 can prevent the wind wheel 3 from falling out during use, thereby affecting the operation of the entire machine.
  • the airflow generating device 100 of this embodiment can overcome the defect of the airflow generating device 100 in the related art that the wind wheel 3 is easy to come out, which affects the operation of the whole machine, and has better safety.
  • the airflow generating device 100 of this embodiment has a simple structure, is easy to manufacture, is practical, safe and reliable, and is easy to implement, promote and apply.
  • the anti-separation piece 4 can be selected as a plurality of bumps arranged at the air inlet along the circumferential direction, or can be selected as a square frame or a ring arranged at the air inlet 13 .
  • the anti-removal member 4 is an annular air deflector.
  • the annular air deflector can not only prevent the wind wheel 3 from coming out, but also guide the gas to flow into the housing 1 to achieve flow diversion.
  • the inner diameter of the air deflector is D1.
  • D1 is greater than 70 mm and smaller than the diameter of the wind wheel 3 .
  • the width of a human hand is usually less than 70 mm, which allows the air deflector to prevent the wind wheel 3 from coming out without hindering the user's hand from inserting and disassembling the air deflector.
  • the housing 1 includes a right volute 12 and a left volute 11 .
  • the rotation source 2 is fixedly arranged on the right volute 12 .
  • the left volute 11 can be connected with the right volute 12
  • the air duct 14 is formed between the left volute 11 and the right volute 12
  • the air inlet 13 is formed on the left volute 11
  • the anti-separation piece 4 is connected to the left volute 11 Removable connection.
  • the right volute 12 and the left volute 11 can be detachably connected by riveting, snapping or bolting.
  • the connection between the right volute 12 and the left volute 11 is a firm and reliable bolt. connect.
  • Arranging the housing 1 to include a right volute 12 and a left volute 11 can facilitate the assembly of the airflow generating device 100 .
  • the anti-separation piece 4 and the left volute 11 can optionally engage with each other.
  • a first engaging portion 43 is provided on one of the anti-removal member 4 and the left volute 11
  • a first engaging portion 43 is provided on the other of the anti-removal member 4 and the left volute 11 .
  • the first engaging part 43 is engaged with the second engaging part.
  • the anti-separation piece 4 and the left volute 11 can also be detachably connected through a twist-lock assembly.
  • one of the anti-separation piece 4 and the left volute 11 is provided with a first twist groove 111, and the anti-separation piece 4 and the left volute 11 are disposed in a detachable manner.
  • the other side of the left volute 11 is provided with a first turnbuckle 44 that matches the first turnbuckle groove 111 .
  • the first turnbuckle 44 and the first turn-buckle groove 111 mainly pass through the anti-separation piece 4 along the circumference of the When the wind wheel 3 is about to come out, it will generally exert an impact force along the radial direction of the anti-removal part 4 to the anti-removal part 4. Therefore, the first turnbuckle 44 and the first twist
  • the buckle groove 111 is not easily unlocked due to the impact of the wind wheel 3, which helps to improve the operational stability of the airflow generating device 100.
  • the rotation direction of the first turnbuckle 44 is set to be opposite to the rotation direction of the wind wheel 3 , which can further improve the operational stability of the airflow generating device 100 .
  • the first turnbuckle 44 is provided on the anti-removal member 4 and includes a first section 441 extending toward the direction of the wind wheel 3 and along a center line away from the air inlet 13 The second segment extending in the direction 442.
  • the first twist groove 111 is provided on the left volute 11 and includes a notch 1111 circumferentially provided on the side wall of the air inlet 13 .
  • a blocking rib 1112 extending along the circumferential direction of the air inlet 13 is provided in the gap 1111 , and an avoidance gap 1113 is formed between the blocking rib 1112 and a side wall of the gap 1111 .
  • the user can first put the first turnbuckle 44 into the gap 1111 through the avoidance gap 1113, and then rotate the anti-separation piece 4 to make the anti-separation piece 4 Rotate in a direction close to the blocking rib 1112 so that the anti-falling rib is engaged with the second section 442 of the first twist buckle 44 .
  • the user can first rotate the anti-removal member 4 in the reverse direction to align the first turnbuckle 44 with the avoidance gap 1113 of the first turnbuckle groove 111 , and then remove the anti-removal member 4 from the left volute 11 .
  • the anti-separation piece 4 moves in a direction away from the left volute 11 , so that the first turnbuckle 44 is taken out through the avoidance gap 1113 , so that the anti-separation piece 4 is removed from the left volute 11 .
  • first turn-lock groove 111 and the first turn-lock groove 111 are only a preferred embodiment of the first turn-lock groove 111 and the first turn-lock groove 111, and is not the only embodiment of the first turn-lock groove 111 and the first turn-lock groove 111.
  • the first The turn-lock groove 111 and the first turn-lock groove 111 can also be selected as other structures capable of switching between the locking state and the unlocking state through rotation.
  • the air flow generating device 100 preferably further includes a filter screen 5 , and the filter screen 5 covers the air inlet 13 of the housing 1 .
  • the filter 5 can be selected as a primary filter that can filter hair, etc., or a HEPA filter with high efficiency.
  • the filter 5 can filter the airflow entering the housing 1 to prevent the wind wheel 3 from accumulating dust and other particles, thereby reducing the frequency of disassembling and cleaning the wind wheel 3 .
  • the anti-removal member 4 is preferably located between the filter screen 5 and the wind wheel 3 , and a pressing portion 42 is formed on the side away from the wind wheel 3 .
  • the pressing part 42 abuts the filter screen 5 to prevent the filter screen 5 from being sucked and collapsed and involved in the wind wheel 3 when the air volume is large, causing danger.
  • the anti-separation piece 4 can be configured to be in surface contact with the filter screen 5 , and at this time, the entire side of the anti-separation piece 4 facing the filter screen 5 can serve as the pressing portion 42 .
  • the side of the anti-separation piece 4 away from the wind wheel 3 is provided with protrusions or ribs that can abut against the filter screen 5 . Compressing the anti-separation piece 4 through the protrusions or ribs helps to save money.
  • the housing 1 also includes an air inlet grille 16 covering the outside of the filter 5.
  • the air inlet grille 16 helps to improve the aesthetics of the airflow generating device 100.
  • a filter installation slot 161 is provided on the side of the air inlet grille 16 facing the filter, and the filter installation slot 161 can constrain the filter 5 .
  • the airflow generating device 100 also includes an anti-detachment knob 6 , and the rotating shaft 21 of the rotating source 2 passes through the rotating shaft hole of the wind wheel 3 .
  • the anti-detachment knob 6 is threadedly connected to the end of the rotating shaft 21 , and the anti-detachment knob 6 can constrain the wind wheel 3 to the rotating shaft 21 of the rotation source 2 .
  • the user can first remove the anti-separation piece 4 from the left volute 11, then rotate the anti-separation knob 6 so that the anti-separation knob 6 is separated from the rotating shaft 21, and finally separate the wind wheel 3 from the rotating shaft. 21 separate, and take out the wind wheel 3 from the left volute 11.
  • the user can first set the wind wheel 3 on the rotating shaft 21 of the rotating source 2, then thread the anti-off knob 6 to the rotating shaft 21, and finally put the anti-off knob 6 on the rotating shaft 21 of the rotating source 2. Take off the piece 4 and install it on the left volute 11.
  • the anti-detachment knob 6 can be a nut 8 .
  • the anti-detachment knob 6 includes a metal nut 61 and an anti-slip knob 62 .
  • the metal nut 61 is threadedly connected to the rotating shaft 21 .
  • the anti-slip knob 62 is located outside the metal nut 61 and is fixedly connected to the metal nut 61 .
  • the metal nut 61 has greater strength and can reliably restrain the wind wheel 3 on the rotating shaft 21 .
  • the anti-slip knob 62 is preferably made of plastic, which facilitates the user to hold and rotate the anti-separation nut 8 by hand, which helps reduce the cost of the anti-separation knob 6 .
  • the metal nut 61 can optionally be matched with the metal nut 61 through ribs.
  • the anti-slip knob 62 is integrally injection-molded on the metal nut 61 .
  • the anti-slip knob 62 is preferably provided with anti-slip knurling that facilitates the user to twist the anti-take-off knob 6, allowing the user to quickly disassemble and assemble the wind wheel 3 without the use of tools.
  • a disassembly and assembly mark is provided on the side of the anti-off knob 6 away from the rotating shaft 21.
  • the disassembly and assembly mark can optionally include arrows marked with the locking direction and the unlocking direction, or can also be selected as other prompts. Pattern or text in the direction of the user's rotation.
  • the rotation source 2 can be fixedly arranged in the housing 1 through a motor bracket.
  • the side of the right volute 12 away from the left volute 11 is preferably formed
  • the right volute 12 also includes an anti-detachment cover 122 connected with the groove wall of the installation groove 121.
  • the anti-detachment cover 122 is located at the end of the rotation source 2 away from the rotation shaft 21.
  • the anti-removal cover 122 and the installation groove 121 are connected through a one-way buckle.
  • the one-way buckle includes a third engaging portion 71 and a fourth engaging portion suitable for engaging with each other. 72
  • the third engaging portion 71 is provided on one of the anti-removal cover 122 and the installation groove 121
  • the fourth engaging portion 72 is provided on the other of the anti-removal cover 122 and the installation groove 121 .
  • the one-way buckle can facilitate the operator to assemble the anti-off cover 122 to the right volute 12, but it is not easy for the user to remove the anti-off cover 122 from the right volute 12, which can avoid the user's misoperation causing the removal of the rotation source 2.
  • the third engaging portion 71 is provided on the anti-removal cover 122 and includes an edge extending in a direction close to the rotation source 2 .
  • a receiving groove is provided on the side of the edge connected to the anti-removal cover 122 .
  • the fourth engaging portion 72 is provided on the mounting groove 121.
  • the fourth engaging portion 72 includes an engaging portion adapted to be hooked on the groove wall of the receiving groove and an engaging portion along the direction away from the anti-removal cover 122.
  • the centerline direction of the installation groove 121 is inclined with a guide ramp.
  • the anti-removal cover 122 is preferably provided with a number of heat dissipation holes 1226 and handle positions for convenient heat dissipation of the working rotating source 2 .
  • the clasp position can facilitate the operator to hold the anti-removal cover 122 and install the anti-removal cover 122 on the right volute 12 .
  • a plurality of radially extending support ribs 1214 are preferably formed in the installation groove 121 , and a sub-air duct is formed between two adjacent support ribs 1214 . As shown in FIG. 17 , the airflow can flow around the rotation source 2 .
  • the air When driven, the air flows into the sub-air duct through the gap between the anti-removal cover 122 and the installation groove 121, then merges into the air duct through the sub-air duct, and finally flows out through the air outlet.
  • the anti-removal cover 122 and the installation groove 121 are also connected through a guide structure.
  • the guide structure can facilitate the operator to accurately install the anti-removal cover 122 on the installation groove 121 and prevent the anti-removal cover 122 from being installed in a misplaced position.
  • the guide structure is preferably but not limited to the cooperation between the guide slope and the guide slope or the cooperation between the cone and the cone, etc.
  • a guide protrusion 1225 is formed on one of the anti-removal cover 122 and the installation groove 121
  • a guide protrusion 1225 is formed on the other to accommodate and limit the guide protrusion 1225 .
  • the guide groove 1213 of the position is shown in FIG. 16 .
  • Embodiment 2 relates to an airflow generating device 100, which is different from the airflow generating device 100 of Embodiment 1 in that, as shown in Figures 20 and 21, the anti-removal cover 122 and the installation groove 121 are connected through a twist-lock assembly.
  • the turnbuckle assembly includes a second turnbuckle 1224 disposed on one of the anti-removal cover 122 and the mounting groove 121 , and a second turnbuckle 1224 provided on the other of the anti-removal cover 122 and the mounting groove 121 . groove, the second turnbuckle groove is adapted to match the second turnbuckle 1224. As shown in FIG.
  • the second turnbuckle 1224 is provided on the anti-removal cover 122 and includes a first section extending toward the installation groove 121 and extending along the centerline direction away from the installation groove 121 . of the second paragraph.
  • the second twist groove is provided on the groove wall of the mounting groove 121, and includes a gap provided on the groove wall of the mounting groove 121 along the circumferential direction, and a blocking rib extending along the circumferential direction of the mounting groove 121 is provided in the gap. There is an avoidance gap formed between the blocking ribs and a side wall of the gap.
  • the user can first put the second turnbuckle 1224 into the gap through the avoidance gap, and then rotate the anti-off cover 122 to make the anti-off cover 122 approach.
  • the direction of the blocking rib is rotated so that the anti-falling rib is engaged with the second section of the second turnbuckle 1224.
  • the user can first reversely rotate the anti-off cover 122 so that the second turnbuckle 1224 is aligned with the avoidance gap of the second turn-lock groove, and then remove the anti-off cover 122 .
  • the cover 122 moves in a direction away from the right volute 12 so that the second turnbuckle 1224 is taken out through the avoidance gap, thereby removing the anti-removal cover 122 from the right volute 12 .
  • the above-mentioned embodiment is only a preferred embodiment of the second turn-lock groove and the second turn-lock groove, and is not the only embodiment of the second turn-lock groove and the second turn-lock groove.
  • the second turn-lock groove and The second turn-lock groove can also be selected as other structures capable of switching between the locking state and the unlocking state through rotation.
  • the anti-removal cover 122 is provided with a support bracket 1223 facing the rotation source 2 .
  • the support frame 1223 is suitable for supporting the rotation source 2 and limiting it, thereby preventing the rotation source 2 from shaking during rotation, which may shorten the service life of the rotation source 2 . Since the motor screw needs to be tightened in reverse when installing the rotation source 2, the motor can be prevented from falling off and the installation is convenient.
  • Embodiment 3 relates to a humidifier, which includes the air flow generating device 100 of Embodiment 1 and Embodiment 2. Therefore, it has the beneficial effects of the air flow generating device 100 of Embodiment 1 and Embodiment 2, that is, it can overcome the problems in the related art.
  • the wind wheel 3 of the air flow generating device 100 is easy to come out, causing defects that affect the operation of the whole machine, and has better safety.
  • the humidifier of Embodiment 3 has a simple structure, is easy to manufacture, is practical, safe and reliable, and is easy to implement, promote and apply.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Humidification (AREA)

Abstract

本公开涉及一种气流发生装置及加湿器，其中，一种气流发生装置，包括壳体、转动源、风轮和防脱件。其中，壳体具有进气口、出气口和连接在进气口和出气口之间的风道。转动源固定设置在壳体上。风轮设置在风道中，风轮与转动源的转轴可拆卸连接。防脱件与壳体可拆卸连接并位于风轮远离转动源的一侧，当防脱件与壳体连接时，防脱件与进气口的中心线之间的距离小于风轮的半径。本公开的气流发生装置能够克服相关技术中的气流发生装置的风轮容易脱出,导致影响整机运行的缺陷，具有更好的安全性。另外，本公开的气流发生装置的结构简单，制造方便，实用安全可靠，便于实施推广应用。

Description

一种气流发生装置及加湿器
本公开要求于2022年06月28日提交中国专利局、申请号为202210750555.2、发明名称为“一种气流发生装置及加湿器”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及家用电器技术领域，具体涉及一种气流发生装置及加湿器。
背景技术
加湿器是一种增加房间湿度的家用电器，能够给指定房间加湿。湿度对人们生活、健康有着巨大的影响。随着人们生活水平提高，空调广泛使用，导致皮肤紧绷、口舌干燥、咳嗽感冒等空调病的滋生。科学证明，空气湿度与人体健康以及日常生活有着密切的联系。医学研究表明，居室湿度达到45-65％RH，温度在20-25度时，人的身体、思维皆处以好的状态，无论工作、休息都可收到理想的效果。
然而，加湿器在经过长时间的使用后，加湿器内的风轮会堆积大量的灰尘，导致加湿器吹出的风越来越浑浊，污染室内环境。现有的加湿器不便于用户将加湿器的风轮拆出并进行清洗。相关技术公开了一种无叶风扇，包括基座组件和机头，基座本体内形成有容置腔室，容置腔室内设置有蜗壳，蜗壳内可拆卸的连接有风轮组件。风轮组件包括风轮本体，风轮本体内设置安装部，电机轴插入安装孔内，电机轴的端部连接有旋钮，电机轴 旋钮旋紧固定以使风轮组件可拆卸的安装在蜗壳上。在拆卸时只需将旋钮松开，方便快捷将风轮本体拆卸清洗。用户可以将风轮从电机上拆下并进行清洗。为便于将风轮拆下清洗,通常需要将壳体的内径设置成大于风轮的外径,而这样一旦旋钮发生松动,风轮容易脱出,导致影响整机运行。
发明内容
因此，本公开要解决的技术问题在于克服相关技术中的气流发生装置的风轮容易脱出,导致影响整机运行的缺陷，从而提供一种安全性更好的气流发生装置及加湿器。
为了解决上述问题，本公开第一方面提供了一种气流发生装置，包括壳体、转动源、风轮和防脱件。其中，壳体具有进气口、出气口和连接在进气口和出气口之间的风道。转动源固定设置在壳体上。风轮设置在风道中，风轮与转动源的转轴可拆卸连接。防脱件与壳体可拆卸连接并位于风轮远离转动源的一侧，当防脱件与壳体连接时，防脱件与进气口的中心线之间的距离小于风轮的半径。
在一些实施方式中，防脱件为圆环形的导流罩。
在一些实施方式中，导流罩的内直径为D1，D1大于70mm且小于风轮的直径。
在一些实施方式中，壳体包括：
右蜗壳，转动源固定设置在右蜗壳上；
左蜗壳，其能够与右蜗壳对接，风道形成在左蜗壳与右蜗壳之间，进气口形成在左蜗壳上，防脱件与左蜗壳可拆卸连接。
在一些实施方式中，防脱件与左蜗壳相互卡合；或，
防脱件与左蜗壳中之一上设置有第一旋扣44第一旋扣槽111，防脱件与左蜗壳中的另一上设置有与旋扣槽相适配的旋扣。
在一些实施方式中，气流发生装置还包括防脱旋钮，转动源的转轴穿过风轮的转轴孔，防脱旋钮与转轴的端部螺纹连接。
在一些实施方式中，防脱旋钮包括：
金属螺母，其与转轴螺纹连接；
防滑旋钮，其位于金属螺母外并与金属螺母固定连接。
在一些实施方式中，右蜗壳的远离左蜗壳的一侧形成有安装凹槽，转动源设置在安装凹槽中，右蜗壳还包括与安装凹槽的槽壁连接的防脱盖，防脱盖位于转动源远离转轴的一侧且与转动源相抵。
在一些实施方式中，防脱盖与安装凹槽通过单向卡扣连接，单向卡扣包括适于相互卡接的第三卡合部和第四卡合部，第三卡合部设置在防脱盖与安装凹槽中之一上，第四卡合部设置在防脱盖与安装凹槽中的另一上。
在一些实施方式中，防脱盖与安装凹槽还通过导向结构连接。
在一些实施方式中，防脱盖与安装凹槽中的一个上设置有第二旋扣，另一个上设置有与第二旋扣相适配的第二旋扣槽。
在一些实施方式中，防脱盖上设置有朝向转动源的支撑架，支撑架适于支撑转动源并对其进行限位。
在一些实施方式中，气流发生装置还包括滤网，滤网覆盖在壳体的进气口处。
在一些实施方式中，防脱件位于滤网与风轮之间，且远离风轮的一侧 形成有压紧部，压紧部与滤网相抵靠。
本公开第二方面涉及了一种加湿器，包括本公开第一方面的气流发生装置。
本公开具有以下优点：
1、由上述技术方案可知，本公开第一方面的气流发生装置在壳体上增设了位于风轮远离转动源的一侧的防脱件，防脱件与壳体可拆卸连接，并被设置成与进气口的中心线之间的距离小于风轮的半径。因此，即便是转动源与风轮之间的连接不够牢固，防脱件也能够防止风轮在使用过程中脱出，导致影响整机运行。因此，本公开第一方面的气流发生装置能够克服相关技术中的气流发生装置的风轮容易脱出,导致影响整机运行的缺陷，具有更好的安全性。另外，本公开的气流发生装置的结构简单，制造方便，实用安全可靠，便于实施推广应用。
2、本公开第二方面的加湿器包括或使用了本公开第一方面的气流发生装置，因此其具有本公开第一方面的气流发生装置的效果，即能够克服相关技术中的气流发生装置的风轮容易脱出,导致影响整机运行的缺陷，具有更好的安全性。另外，本公开的加湿器的结构简单，制造方便，实用安全可靠，便于实施推广应用。
附图说明
为了更清楚地说明本公开具体实施方式或相关技术中的技术方案，下面将对具体实施方式或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施方式，对于本领域普 通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了本公开实施例1的气流发生装置的爆炸图；
图2为本公开实施例1的气流发生装置在一个角度下的剖视图；
图3为本公开实施例1的气流发生装置在另一个角度下的剖视图；
图4为本公开实施例1的气流发生装置在另一个角度下的爆炸图；
图5为本公开实施例1的气流发生装置的防脱旋钮在一个角度下的立体图；
图6为本公开实施例1的气流发生装置的防脱旋钮在另一个角度下的立体图；
图7为本公开实施例1的气流发生装置的防脱旋钮的爆炸图；
图8为本公开实施例1的气流发生装置的防脱件；
图9为本公开实施例1的气流发生装置的防脱盖；
图10为本公开实施例1的气流发生装置的进风格栅；
图11为本公开实施例1的气流发生装置的装配状态下的左视图，并未示出其进风格栅；
图12为本公开实施例1的气流发生装置左蜗壳；
图13为图12中的A处放大图；
图14为本公开实施例1的气流发生装置的左蜗壳；
图15为本公开实施例1的气流发生装置的右蜗壳；
图16为本公开实施例1的气流发生装置的右蜗壳；
图17为本公开实施例1的气流发生装置内的气流流向的示意图；
图18为本公开实施例1的气流发生装置的剖视图，此时防脱旋钮选择为螺母；
图19为本公开实施例2的气流发生装置的防脱盖；
图20为本公开实施例2的气流发生装置的防脱件；
图21为另一个角度下的本公开实施例2的气流发生装置的防脱件。
附图标记说明：
100、气流发生装置；1、壳体；11、左蜗壳；111、第一旋扣槽；1111、豁口；1112、阻挡筋条；1113、避让间隙；12、右蜗壳；121、安装凹槽；1213、导向凹槽；1214、支撑筋条；122、防脱盖；1223、支撑架；1224、第二旋扣；1225、导向凸部；1226、散热孔；13、进气口；14、风道；15、出气口；16、进风格栅；161、滤网安装槽；2、转动源；21、转轴；3、风轮；4、防脱件；42、压紧部；43、第一卡合部；44、第一旋扣；441、第一段；442、第二段；5、滤网；6、防脱旋钮；61、金属螺母；62、防滑旋钮；71、第三卡合部；72、第四卡合部；8、螺母。
具体实施方式
下面将结合附图对本公开的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或 位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
此外，下面所描述的本公开不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例1
图1示出了本公开实施例1的气流发生装置的爆炸图。图2为本公开实施例1的气流发生装置在一个角度下的剖视图。图3为本公开实施例1的气流发生装置在另一个角度下的剖视图。图4为本公开实施例1的气流发生装置在另一个角度下的爆炸图。如图1-4所示，本公开涉及了一种气流发生装置100，包括壳体1、转动源2、风轮3和防脱件4。其中，壳体1具有进气口13、出气口15和连接在进气口13和出气口15之间的风道14。转动源2固定设置在壳体1上。风轮3设置在风道14中，风轮3与转动源2的转轴21可拆卸连接。防脱件4与壳体1可拆卸连接并位于风轮3远离 转动源2的一侧，当防脱件4与壳体1连接时，防脱件4与进气口13的中心线之间的距离小于风轮3的半径。转动源2可选为能够输出转动的装置，比如电机、发动机、液压马达或其中之一与减速机的组合等。
由上述技术方案可知，本实施例的气流发生装置100在壳体1上增设了位于风轮3远离转动源2的一侧的防脱件4。防脱件4与壳体1可拆卸连接，并被设置成与进气口13的中心线之间的距离小于风轮3的半径。因此，即便是转动源2与风轮3之间的连接不够牢固，防脱件4也能够防止风轮3在使用过程中脱出，导致影响整机运行。因此，本实施例的气流发生装置100能够克服相关技术中的气流发生装置100的风轮3容易脱出,导致影响整机运行的缺陷，具有更好的安全性。另外，本实施例的气流发生装置100的结构简单，制造方便，实用安全可靠，便于实施推广应用。
防脱件4可选为沿周向设置在进风口处的多个凸块、也可选为设置在进气口13处的方框或圆环。在一些实施方式中，防脱件4为圆环形的导流罩。圆环形的导流罩不仅能够起到避免风轮3脱出，还能够起到引导气体流进壳体1内的作用，以实现导流。导流罩的内直径为D1，在一些实施方式中，D1大于70mm且小于风轮3的直径。人手部的宽度通常小于70mm，这使得导流罩既能够起到防止风轮3脱出的作用，又不会阻碍用户的手伸入并拆卸导流罩。
在本实施例中，如图14和15所示，壳体1包括右蜗壳12和左蜗壳11。其中，转动源2固定设置在右蜗壳12上。左蜗壳11能够与右蜗壳12对接，风道14形成在左蜗壳11与右蜗壳12之间，进气口13形成在左蜗壳11上，防脱件4与左蜗壳11可拆卸连接。右蜗壳12与左蜗壳11可选为通过铆接、 卡接或螺栓连接等方式可拆卸连接，在一些实施方式中，右蜗壳12与左蜗壳11之间的连接为牢固可靠的螺栓连接。将壳体1设置成包括右蜗壳12和左蜗壳11能够便于气流发生装置100的装配。
在本实施例中，防脱件4与左蜗壳11可选为相互卡合。具体地，如图8所示，防脱件4与左蜗壳11中之一上设置有第一卡合部43，防脱件4与左蜗壳11中的另一上设置有适于与第一卡合部43卡接的第二卡合部。防脱件4与左蜗壳11也可选为通过旋扣组件进行可拆卸连接，例如防脱件4与左蜗壳11中之一上设置有第一旋扣槽111，防脱件4与左蜗壳11中的另一上设置有与第一旋扣槽111相适配的第一旋扣44。当防脱件4与左蜗壳11之间通过第一旋扣44和第一旋扣槽111进行连接时，由于第一旋扣44和第一旋扣槽111主要通过沿防脱件4周向的锁紧力进行锁紧，而当风轮3即将脱出时，其一般会向防脱件4施加沿防脱件4的径向的冲击力，因此，第一旋扣44和第一旋扣槽111不易因风轮3的冲击而解除锁定，这有助于提升气流发生装置100的运行的稳定性。在一些实施方式中，第一旋扣44的旋转方向被设置成与风轮3的转动方向相反，能够进一步提升气流发生装置100的运行的稳定性。
如图12和13所示，在本实施例中，第一旋扣44设置在防脱件4上，并包括朝向风轮3方向延伸的第一段441和沿背离进气口13的中心线方向延伸的第二段442。第一旋扣槽111设置在左蜗壳11上并包括沿周向设置在进气口13的侧壁上的豁口1111。豁口1111内设置有沿进气口13周向延伸的阻挡筋条1112，阻挡筋条1112与豁口1111的一个侧壁之间形成有避让间隙1113。当需要将的防脱件4安装在左蜗壳11上时，用户能通过先将 第一旋扣44通过避让间隙1113放入到豁口1111中，再旋转防脱件4，使防脱件4朝接近阻挡筋条1112的方向转动，使防脱筋条与第一旋扣44的第二段442相卡合。
当需要将防脱件4从左蜗壳11上拆下时，用户能够先反向旋转防脱件4，使第一旋扣44与第一旋扣槽111的避让间隙1113相对齐，接着将防脱件4沿远离左蜗壳11的方向移动，使第一旋扣44经过避让间隙1113被取出，从而将防脱件4从左蜗壳11上拆下。需要注意的是，上述实施例仅为第一旋扣槽111和第一旋扣槽111的优选实施例，并不是第一旋扣槽111和第一旋扣槽111的唯一实施例，第一旋扣槽111和第一旋扣槽111也可选为其他能够通过旋转而在锁紧状态和解锁状态之间切换的结构。
在本实施例中，气流发生装置100优选为还包括滤网5，滤网5覆盖在壳体1的进气口13处。滤网5可选为可过滤毛发等的初级过滤网，也可选择为高效过滤的HEPA网。滤网5能够对进入到壳体1内的气流进行过滤，避免风轮3积累灰尘等颗粒物，从而降低拆卸并清洗风轮3的频率。
在本实施例中，防脱件4优选为位于滤网5与风轮3之间，且远离风轮3的一侧形成有压紧部42。压紧部42与滤网5相抵靠，从而避免滤网5在大风量的情况下被吸塌并卷入到风轮3中，导致产生危险。防脱件4可被设置成能够与滤网5进行面接触，此时防脱件4整个朝向滤网5的一侧能够作为压紧部42。在一些实施方式中，防脱件4远离风轮3的一侧设置有能够与滤网5相抵靠的凸起或筋条，通过凸起或筋条来压紧防脱件4有助于节约防脱件4所使用的材料。在本实施例中，如图10所示，壳体1还包括覆盖在滤网5外侧的进风格栅16，进风格栅16有助于提升气流发生装 置100的美观性。优先地，进风格栅16朝向滤网的一侧设置有滤网安装槽161，滤网安装槽161能够对滤网5起到约束作用。
在本实施例中，如图6和图7所示，气流发生装置100还包括防脱旋钮6，转动源2的转轴21穿过风轮3的转轴孔。防脱旋钮6与转轴21的端部螺纹连接，防脱旋钮6能够将风轮3约束在转动源2的转轴21上。当需要对风轮3进行清洗时，用户能够先将防脱件4从左蜗壳11上拆下，接着旋转防脱旋钮6，使防脱旋钮6脱离转轴21，最后将风轮3与转轴21分离，从左蜗壳11中取出风轮3。
当需要将清洗完的风轮3安装到壳体1中时，用户能够先将风轮3套设在转动源2的转轴21上，再将防脱旋钮6与转轴21螺纹连接，最后将防脱件4安装左蜗壳11上。
如图18所示，防脱旋钮6可选为螺母8，在一些实施方式中，防脱旋钮6包括金属螺母61和防滑旋钮62。金属螺母61与转轴21螺纹连接。防滑旋钮62位于金属螺母61外并与金属螺母61固定连接。金属螺母61具有较大的强度，能够可靠地将风轮3约束在转轴21上。防滑旋钮62优选为塑胶件，既能够便于用户用手握住并旋转防脱螺母8，有助于降低防脱旋钮6的成本。金属螺母61可选为与金属螺母61通过筋位配合，在一些实施方式中，防滑旋钮62一体式注塑在金属螺母61上。防滑旋钮62上优选为设置有能够便于用户扭转防脱旋钮6的防滑滚花，能够使用户无需借助工具就能够快速拆装风轮3。如图5和图11所示，防脱旋钮6远离转轴21的一侧设置有拆装标识，拆装标识可选为包括标注有锁紧方向和解锁方向的箭头，也可选为其他能够提示用户转动方向的图案或文字。
在本实施例中，转动源2可选为通过电机支架固定设置在壳体1中，为了节约气流发生装置100所占用的体积，右蜗壳12的远离左蜗壳11的一侧优选为形成有安装凹槽121，转动源2设置在安装凹槽121中，右蜗壳12还包括与安装凹槽121的槽壁连接的防脱盖122，防脱盖122位于转动源2背离转轴21的一侧且与转动源2相抵。这使得风轮3能够环绕在转动源2外侧，使得气流发生装置100的结构更加紧凑。
在本实施例中，如图9所示，防脱盖122与安装凹槽121通过单向卡扣连接，单向卡扣包括适于相互卡接的第三卡合部71和第四卡合部72，第三卡合部71设置在防脱盖122与安装凹槽121中之一上，第四卡合部72设置在防脱盖122与安装凹槽121中的另一上。单向卡扣能够便于操作者将防脱盖122装配到右蜗壳12上，但用户不易将防脱盖122从右蜗壳12上拆下，能够避免用户误操作导致拆下转动源2，有助于提升装置的气流发生装置100的安全性。第三卡合部71设置在防脱盖122上并包括朝接近转动源2的方向延伸的沿边，沿边与防脱盖122相连的一侧设置有容纳凹槽。第四卡合部72设置在安装凹槽121上，第四卡合部72包括沿接近防脱盖122的方向依次设置有适于勾在容纳凹槽的槽壁上的卡合部和沿远离安装凹槽121的中线方向倾斜的导向斜面。防脱盖122上优选为设置有便于工作的转动源2散热的若干散热孔1226和扣手位。扣手位能够便于操作者握住防脱盖122并将防脱盖122安装到右蜗壳12上。安装凹槽121内优选为形成有呈放射状延伸的多个支撑筋条1214，相邻的两个支撑筋条1214之间形成有子风道，如图17所示，气流能够在转动源2的驱动下通过防脱盖122与安装凹槽121的间隙流入到子风道中，再经由子风道汇入风道中，最后 通过出气口流出。这使得防脱盖122与安装凹槽121的间隙也能够作为进气口，有助于增大气流发生装置100的进风量和出风量。
在本实施例中，防脱盖122与安装凹槽121还通过导向结构连接。导向结构能够便于操作者准确地将防脱盖122安装到安装凹槽121上，防止防脱盖122被安装错位。导向结构优选但不限于为导向斜面与导向斜面的配合或锥筒与锥体的配合等。例如在本实施例中，如图16所示，防脱盖122与安装凹槽121中的一个上形成有导向凸部1225，另一个上形成有适于容纳导向凸部1225并对其进行限位的导向凹槽1213。
实施例2
实施例2涉及了一种气流发生装置100，其与实施例1的气流发生装置100的区别在于，如图20和21所示，防脱盖122与安装凹槽121通过旋扣组件相连。旋扣组件包括设置在防脱盖122与安装凹槽121中的一个上的第二旋扣1224，以及设置在防脱盖122与安装凹槽121中的另一个上设置有与第二旋扣槽，第二旋扣槽适于与第二旋扣1224相适配。如图19所示，在本实施例中，第二旋扣1224设置在防脱盖122上，并包括朝向安装凹槽121方向延伸的第一段和沿背离安装凹槽121的中心线方向延伸的第二段。第二旋扣槽设置在安装凹槽121的槽壁上，并包括沿周向设置在安装凹槽121的槽壁上的豁口，豁口内设置有沿安装凹槽121的周向延伸的阻挡筋条，阻挡筋条与豁口的一个侧壁之间形成有避让间隙。当需要将的防脱盖122安装在右蜗壳12上时，用户能通过先将第二旋扣1224通过避让间隙放入到豁口中，再旋转防脱盖122，使防脱盖122朝接近阻挡筋条的方向转动，使防脱筋条与第二旋扣1224的第二段相卡合。
当需要将防脱盖122从右蜗壳12上拆下时，用户能够先反向旋转防脱盖122，使第二旋扣1224与第二旋扣槽的避让间隙相对齐，接着将防脱盖122沿远离右蜗壳12的方向移动，使第二旋扣1224经过避让间隙被取出，从而将防脱盖122从右蜗壳12上拆下。需要注意的是，上述实施例仅为第二旋扣槽和第二旋扣槽的优选实施例，并不是第二旋扣槽和第二旋扣槽的唯一实施例，第二旋扣槽和第二旋扣槽也可选为其他能够通过旋转而在锁紧状态和解锁状态之间切换的结构。
在一些实施方式中，防脱盖122上设置有朝向转动源2的支撑架1223。支撑架1223适于支撑转动源2并对其进行限位，从而避免转动源2在转动过程中发生晃动，导致缩短转动源2的使用寿命。由于安装转动源2时需要反向拧电机螺钉，可以避免电机脱落，方便安装。
实施例3
实施例3涉及了一种加湿器，其包括实施例1和实施例2的气流发生装置100，因此具有实施例1和实施例2的气流发生装置100的有益效果，即能够克服相关技术中的气流发生装置100的风轮3容易脱出,导致影响整机运行的缺陷，具有更好的安全性。另外，实施例3的加湿器的结构简单，制造方便，实用安全可靠，便于实施推广应用。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本公开创造的保护范围之中。

Claims (15)

  1. 一种气流发生装置，包括：
    壳体(1)，所述壳体(1)具有进气口(13)、出气口(15)和连接在所述进气口(13)和出气口(15)之间的风道(14)；
    转动源(2)，其固定设置在所述壳体(1)上；
    风轮(3)，其设置在所述风道(14)中，所述风轮(3)与所述转动源(2)的转轴(21)可拆卸连接；
    防脱件(4)，其与所述壳体(1)可拆卸连接并位于所述风轮(3)远离所述转动源(2)的一侧，当所述防脱件(4)与所述壳体(1)连接时，所述防脱件(4)与所述进气口(13)的中心线之间的距离小于所述风轮(3)的半径。
  2. 根据权利要求1所述的气流发生装置，其中，所述防脱件(4)为圆环形的导流罩。
  3. 根据权利要求2所述的气流发生装置，其中，所述导流罩的内直径为D1，所述D1大于70mm且小于所述风轮(3)的直径。
  4. 根据权利要求1所述的气流发生装置，其中，所述壳体(1)包括：
    右蜗壳(12)，所述转动源(2)固定设置在所述右蜗壳(12)上；
    左蜗壳(11)，其能够与所述右蜗壳(12)对接，所述风道(14)形成在所述左蜗壳(11)与右蜗壳(12)之间，所述进气口(13)形成在所述左蜗壳(11)上，所述防脱件(4)与所述左蜗壳(11)可拆卸连接。
  5. 根据权利要求4所述的气流发生装置，其中，所述防脱件(4)与所述左蜗壳(11)相互卡合；或，
    所述防脱件(4)与左蜗壳(11)中之一上设置有第一旋扣槽(111)，所述防脱件(4)与左蜗壳(11)中的另一上设置有与所述第一旋扣槽(111)相适配的第一旋扣(44)。
  6. 根据权利要求1-5中任一项所述的气流发生装置，其中，所述气流发生装置(100)还包括防脱旋钮(6)，所述转动源(2)的转轴(21)穿过所述风轮(3)的转轴孔，所述防脱旋钮(6)与所述转轴(21)的端部螺纹连接。
  7. 根据权利要求6所述的气流发生装置，其中，防脱旋钮(6)包括：
    金属螺母(61)，其与所述转轴(21)螺纹连接；
    防滑旋钮(62)，其位于所述金属螺母(61)外并与所述金属螺母(61)固定连接。
  8. 根据权利要求4或5所述的气流发生装置，其中，所述右蜗壳(12)的远离所述左蜗壳(11)的一侧形成有安装凹槽(121)，所述转动源(2)设置在所述安装凹槽(121)中，所述右蜗壳(12)还包括与所述安装凹槽(121)的槽壁连接的防脱盖(122)，所述防脱盖(122)位于所述转动源(2)远离所述转轴(21)的一侧且与所述转动源(2)相抵。
  9. 根据权利要求8所述的气流发生装置，其中，所述防脱盖(122)与所述安装凹槽(121)通过单向卡扣连接，所述单向卡扣包括适于相互卡接的第三卡合部(71)和第四卡合部(72)，所述第三卡合部(71)设置在所述防脱盖(122)与所述安装凹槽(121)中之一上，所述第四卡合部(72)设置在所述防脱盖(122)与所述安装凹槽(121)中的另一上。
  10. 根据权利要求9所述的气流发生装置，其中，所述防脱盖(122) 与所述安装凹槽(121)还通过导向结构连接。
  11. 根据权利要求8所述的气流发生装置，其中，所述防脱盖(122)与所述安装凹槽(121)中的一个上设置有第二旋扣(1224)，另一个上设置有与所述第二旋扣(1224)相适配的第二旋扣槽。
  12. 根据权利要求11所述的气流发生装置，其中，所述防脱盖(122)上设置有朝向所述转动源(2)的支撑架(1223)，所述支撑架(1223)适于支撑所述转动源(2)并对其进行限位。
  13. 根据权利要求1-5中任一项所述的气流发生装置，其中，所述气流发生装置(100)还包括滤网(5)，所述滤网(5)覆盖在所述壳体(1)的进气口(13)处。
  14. 根据权利要求13所述的气流发生装置，其中，防脱件(4)位于所述滤网(5)与风轮(3)之间，且远离所述风轮(3)的一侧形成有压紧部(42)，所述压紧部(42)与所述滤网(5)相抵靠。
  15. 一种加湿器，包括权利要求1-14中任一项所述的气流发生装置。
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