WO2023051220A1 - 便携风扇 - Google Patents

便携风扇 Download PDF

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Publication number
WO2023051220A1
WO2023051220A1 PCT/CN2022/118187 CN2022118187W WO2023051220A1 WO 2023051220 A1 WO2023051220 A1 WO 2023051220A1 CN 2022118187 W CN2022118187 W CN 2022118187W WO 2023051220 A1 WO2023051220 A1 WO 2023051220A1
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WO
WIPO (PCT)
Prior art keywords
air
fan
arc
wall
shaped
Prior art date
Application number
PCT/CN2022/118187
Other languages
English (en)
French (fr)
Inventor
刘凯
许加华
王永炯
杨广
赖友
伍勋焕
Original Assignee
深圳市蓝禾技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202122411244.7U external-priority patent/CN218479935U/zh
Priority claimed from CN202122982950.7U external-priority patent/CN216477948U/zh
Priority claimed from CN202123029873.XU external-priority patent/CN216477949U/zh
Priority claimed from CN202123110003.5U external-priority patent/CN216477952U/zh
Priority claimed from CN202123086976.XU external-priority patent/CN216477951U/zh
Application filed by 深圳市蓝禾技术有限公司 filed Critical 深圳市蓝禾技术有限公司
Publication of WO2023051220A1 publication Critical patent/WO2023051220A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers

Definitions

  • the present application relates to the technical field of fans, in particular to a portable fan.
  • the existing portable fans usually use an axial flow fan assembly. Since the air outlet direction of the axial flow fan is in line with the rotation axis of the fan blade, this type of fan usually requires a larger fan blade to achieve a larger air output. , making the overall size of the portable fan larger, which has to sacrifice the portability of the fan device; in order to reduce the size of the portable fan, a fan device using a centrifugal fan has appeared on the market, but due to the uneven air output of the centrifugal fan and the The air volume is small, which cannot meet the needs of users to quickly reduce body temperature through blowing. In addition, the air outlet angle of the portable fan is small, which makes it difficult to give customers a comfortable blowing experience.
  • the embodiment of the present application discloses a portable fan.
  • the air outlet side of the fan is designed with a wide mouth, and the air flow is guided to the air outlet.
  • the air outlet angle is increased, allowing users to quickly cool down while giving users a comfortable blowing experience without reducing portability.
  • the embodiment of the present application provides a portable fan, for example, including: a housing; An air chamber is provided between the upper wall of the housing and the lower wall of the housing, the fan is arranged in the air chamber, and an air outlet communicating with the air chamber is provided on one side of the housing.
  • the lower wall of the housing is provided with an arc-shaped air guiding part near the air outlet, and the arc-shaped air guiding part is bent toward a side away from the upper wall of the housing.
  • the arc-shaped air guide part is provided so that the air outlet side of the fan is designed with a wide mouth, and the air flow is guided to the air outlet, which not only increases the air outlet angle, but also increases the air outlet volume. To give customers a comfortable blowing experience.
  • the housing further includes an arc-shaped side wall and a windshield wall arranged between the upper wall of the housing and the lower wall of the housing, and the arc-shaped side wall surrounds the
  • the fan is provided with a volute tongue at the end of the arc-shaped side wall close to the arc-shaped air guide, and the wind-shielding wall is arranged at the end of the arc-shaped side wall away from the volute tongue.
  • the volute tongue and the wind-shielding wall are respectively arranged on both sides of the arc-shaped wind-guiding portion.
  • the arc-shaped side wall further includes a wind-accumulating plate connected to the arc-shaped wind guide part, the upper end of the wind-accumulating plate is connected to the volute tongue, and the wind-accumulating plate The lower end of the plate is bent towards the windshield wall.
  • a guide grille is provided on the housing corresponding to the air outlet, and the arc-shaped air guide part is located between the guide grille and the fan.
  • the air guide grille includes a horizontal wind guide rib, and the horizontal wind guide rib includes a first position part close to the volute tongue part and a second position part close to the wind shield wall.
  • the position portion, the width of the first position portion extending toward the side of the fan is smaller than the width of the second position portion extending toward the side of the fan.
  • the width of the transverse wind guiding rib extending toward the side of the fan gradually becomes smaller along the direction from the second position to the first position.
  • a blade portion is formed on a side of the transverse wind guiding rib facing the fan, and the blade portion gradually becomes thinner along a direction approaching the fan.
  • the air chamber includes a first air chamber and a second air chamber separately arranged, the first air chamber and the second air chamber communicate with the air outlet respectively, the
  • the fan includes a first fan arranged in the first air chamber and a second fan arranged in the second air chamber.
  • the housing includes an arc-shaped side wall and a windshield wall arranged between the upper wall of the housing and the lower wall of the housing, and the arc-shaped side wall includes The first arc-shaped side wall of the first fan and the second arc-shaped side wall surrounding the second fan, the windshield wall is arranged between the first wind chamber and the second wind chamber and simultaneously It is connected with the first curved side wall and the second curved side wall.
  • the end of the first arc-shaped side wall away from the windshield wall is provided with a first volute tongue part
  • the end of the second arc-shaped sidewall away from the windshield wall is provided with a first volute.
  • the arc-shaped air guide part includes a first arc-shaped air guide part and a second arc-shaped air guide part
  • the first arc-shaped air guide part is arranged between the first volute tongue part and the windshield
  • the second arc-shaped air guide part is arranged between the second volute tongue part and the windshield wall.
  • the casing includes an inner casing and an outer casing arranged outside the inner casing, a battery compartment is formed between the inner casing and the outer casing, and the inner casing corresponds to the The position of the battery compartment is provided with the arc-shaped air guide part.
  • an anti-blocking structure is provided on the outer surface of the housing, and a plurality of air inlet holes are provided on the anti-blocking structure, and the plurality of air inlet holes communicate with the air cavity respectively.
  • the air outlet structure formed by the arc-shaped wind guide part, the wind gathering part, and the horizontal wind guide rib is set to correct the air outlet of the fan.
  • the direction further increases the air volume and air outlet distance.
  • the air outlet side of the fan is designed with a wide mouth, and the air flow is guided to the air outlet, which increases the air outlet angle and gives users a comfortable environment while quickly cooling down.
  • Blowing experience setting the wind gathering plate connected with the arc-shaped air guide part can play the role of air guide on the one hand, and on the other hand can make the air more concentrated to avoid the loss of air volume; set the middle width and both ends narrow, And the horizontal wind guide ribs extending arc-shaped from the middle to both ends form a runway for the wind flow to reduce the reduction of wind speed, further increase the air volume and blowing distance, and make the wind blow out from the air outlets more evenly.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a portable fan provided in the first embodiment of the present application
  • Fig. 2 is a disassembled state view of the portable fan provided by the first embodiment of the present application
  • Fig. 3 is a three-dimensional structural schematic diagram of the portable fan provided by the first embodiment of the present application with the cover removed;
  • Fig. 4 is a schematic diagram of the three-dimensional structure of the cover plate provided by the first embodiment of the present application.
  • Fig. 5 is another disassembled state view of the portable fan provided by the first embodiment of the present application.
  • Fig. 6 is another disassembled view of the portable fan provided by the first embodiment of the present application.
  • Fig. 7 is another disassembled state view of the portable fan provided by the first embodiment of the present application.
  • Fig. 8 is another perspective view of the portable fan provided by the first embodiment of the present application.
  • Fig. 9 is a schematic perspective view of the portable fan according to the second embodiment of the present application.
  • Fig. 10 is a structural schematic diagram of another perspective of the portable fan according to the second embodiment of the present application.
  • Fig. 11 is a partially enlarged structural schematic diagram of the casing of the portable fan according to the second embodiment of the present application.
  • Fig. 12 is a partial cross-sectional structural schematic diagram of the portable fan according to the second embodiment of the present application.
  • Fig. 13 is an enlarged schematic diagram of a partial cross-sectional structure of the portable fan according to the second embodiment of the present application.
  • Fig. 14 is a schematic diagram of a partially disassembled structure of the portable fan according to the second embodiment of the present application.
  • Fig. 15 is a schematic diagram of a partially disassembled structure of the portable fan according to the second embodiment of the present application.
  • Fig. 16 is a schematic diagram of the assembled partial structure of the portable fan according to the second embodiment of the present application.
  • Fig. 17 is a schematic perspective view of the front case of the portable fan according to the second embodiment of the present application.
  • Fig. 18 is a schematic diagram of the assembled partial structure of the portable fan according to the second embodiment of the present application.
  • Fig. 19 is a partial cross-sectional structural schematic diagram of the portable fan according to the second embodiment of the present application.
  • Fig. 20 is a schematic cross-sectional structure diagram of a portable fan according to the second embodiment of the present application.
  • Fig. 21 is a partially enlarged structural schematic diagram of the portable fan according to the third embodiment of the present application.
  • Fig. 22 is a schematic cross-sectional structure diagram of the portable fan according to the third embodiment of the present application.
  • Fig. 23 is a schematic diagram of the assembly of the button portion and the elastic support member according to the third embodiment of the present application.
  • Fig. 24 is a structural schematic diagram of another viewing angle of the button portion and the elastic support member according to the third embodiment of the present application.
  • Fig. 25 is a schematic perspective view of the connecting rod according to the third embodiment of the present application.
  • Fig. 26 is a schematic diagram of the disassembled structure of the portable fan according to the fourth embodiment of the present application.
  • Fig. 27 is a schematic diagram of the disassembled structure of the portable fan according to the fourth embodiment of the present application.
  • Fig. 28 is a schematic cross-sectional structure diagram of a portable fan according to the fourth embodiment of the present application.
  • Fig. 29 is a schematic cross-sectional structure diagram of another viewing angle of the portable fan according to the fourth embodiment of the present application.
  • Fig. 30 is a schematic perspective view of the portable fan according to the fourth embodiment of the present application.
  • Fig. 31 is a schematic diagram of the three-dimensional structure of the portable fan in the fifth embodiment of the present application when the main casing is stored in the hanging rope;
  • Fig. 32 is a schematic diagram of the three-dimensional structure of the portable fan in the fifth embodiment of the present application when the main casing is extended after being stored in the lanyard;
  • Fig. 33 is a three-dimensional structural schematic diagram of the portable fan according to the fifth embodiment of the present application when the main casing is extended after the lanyard is taken out;
  • Fig. 34 is a perspective view of the portable fan in the fifth embodiment of the present application when the main casing is in a storage state after the lanyard is taken out;
  • Fig. 35 is an exploded schematic diagram of the portable fan according to the fifth embodiment of the present application at an angle
  • Fig. 36 is an exploded schematic view of the portable fan according to the fifth embodiment of the present application at another angle;
  • Fig. 37 is an exploded schematic diagram of the fan assembly of the fifth embodiment of the present application.
  • Fig. 38 is a perspective view of a portable fan according to the sixth embodiment of the present application.
  • a portable fan provided in the first embodiment of the present application includes a housing 100 and a fan 200 disposed in the housing 100 .
  • the number of fans 200 may be one, two or more.
  • the fan 200 is, for example, a centrifugal fan.
  • the housing 100 includes, for example, an upper housing wall 140 and a lower housing wall 150 disposed opposite to each other.
  • An air cavity 500 is disposed between the upper housing wall 140 and the lower housing wall 150, and the fan 200 is disposed in the air cavity 500.
  • One side of the housing 100 is provided with an air outlet 105 communicating with the air chamber 500, and the lower wall 150 of the housing is provided with an arc-shaped air guide part 102 near the air outlet 105, and the arc-shaped air guide part 102 extends toward the air outlet 105, and It is bent toward the side away from the upper wall 140 of the casing.
  • the air outlet side of the fan 200 is designed with a wide mouth, and the air flow is guided to the air outlet 105, which increases the air outlet angle and makes the use of the portable fan smaller.
  • the blower fan 200 can also achieve a larger air outlet area.
  • the housing 100 also includes an arc-shaped side wall 160 and a windshield wall 101 arranged between the upper wall 140 of the housing and the lower wall 150 of the housing.
  • the arc-shaped side wall 160 is arranged around the fan 200, and the arc-shaped side wall 160 One end close to the arc-shaped air guiding portion 102 is provided with a volute tongue portion 104.
  • the arc-shaped side wall 160 extends in an arc shape around the fan 200 on the housing 100, so as to be in contact with the upper wall 140 of the housing and the lower wall 150 of the housing.
  • a cavity wall of the wind cavity 500 is formed.
  • a windshield wall 101 is provided on the housing 100 close to the arc-shaped side wall 160 away from the volute tongue part 104, that is, the windshield wall 101 is arranged at the end of the arc-shaped side wall 160 away from the volute tongue part 104, specifically, the windshield wall 101 is connected to the arc-shaped air guide part 102, one end of the wind-shielding wall 101 extends toward the housing 100 and is connected to the arc-shaped side wall 160, the other end of the wind-shielding wall 101 extends toward the air outlet 105, and the volute tongue 104 and The windshield walls 101 are respectively disposed on two sides of the arc-shaped wind guide part 102 .
  • the arc-shaped side wall 160 also includes a wind-collecting plate 103 connected to the arc-shaped wind guide portion 102 , the upper end of the wind-collecting plate 103 is connected to the volute tongue portion 104 , and the lower end of the wind-collecting plate 103 is bent toward the windshield wall 101 .
  • the volute tongue part 104 is set to guide the airflow generated by the fan 200;
  • the wind gathering plate 103 connected to the arc-shaped wind guide part 102 is set to play the role of wind guide on the one hand, and on the other hand, it can also make the air flow more concentrated.
  • the air outlet distance of the portable fan is longer. That is to say, when the user holds the portable fan, he can feel a larger air volume even at a position farther from the air outlet 105 .
  • a guide grill 111 is provided on the housing 200 corresponding to the air outlet 105 , and the arc-shaped air guide part 102 is located between the guide grill 111 and the fan 200 , for example.
  • the air guide grille 111 includes a horizontal wind guide rib 1111
  • the horizontal air guide rib 1111 includes a first position part close to the volute tongue part 104 and a second position part close to the windshield wall 101, and the horizontal wind guide rib 1111
  • the rib 1111 extends in an arc shape from the second position portion to the first position portion.
  • the width extending toward the side of the fan 200 at the first position is smaller than the width extending toward the side of the fan 200 at the second position.
  • the width extending toward the side of the fan 200 of the transverse wind guiding rib 1111 is along the width of the second position.
  • the direction from the part to the first position part gradually becomes smaller.
  • the horizontal wind guide rib 1111 can match the position of the air outlet 105, thereby forming a runway for the passing wind flow, reducing the reduction of wind speed, further increasing the air volume and blowing distance, and making the wind flow more evenly from each wind guide The grill 111 blows out.
  • the side of the transverse wind guiding rib 1111 facing the fan 200 is further formed with a blade 112 , and the blade 112 gradually becomes thinner along a direction approaching the fan 200 .
  • the blades 112 provided on the transverse air guiding ribs 1111 can further reduce the resistance of the wind, and the airflow can be guided out smoothly when passing through the blades 112, thereby increasing the wind speed and volume, and the direction of the wind can be more concentrated.
  • the number of fans 200 in this application is, for example, two. Referring to FIG. 1 to FIG. 6 , this application takes two fans as an example to describe the specific structure of the portable fan 10 in detail.
  • the fan 200 includes, for example, a first fan 210 and a second fan 220 . Wherein, the rotation direction of the first fan 210 is opposite to the rotation direction of the second fan 220 .
  • the air chamber 500 includes, for example, a first air chamber 510 and a second air chamber 520 which are arranged separately, the first fan 210 is arranged in the first air chamber 510 , and the second fan 220 is arranged in the second air chamber 520 .
  • the housing 100 includes an arc-shaped side wall 160 and a windshield wall 101 disposed between the housing upper wall 140 and the housing lower wall 150 , the arc-shaped side wall 160 includes a first arc-shaped side wall 161 surrounding the first fan 210 And surrounding the second arc-shaped side wall 162 of the second fan 220, the first arc-shaped side wall 161 and the second arc-shaped side wall 162 extend arc-shaped on the casing 100 respectively, and the first arc-shaped side wall 161 and the second arc-shaped side wall 161 The ends of the two arc-shaped side walls 162 near the middle of the housing 100 are connected together. Shaped side wall 162 is connected to separate the first wind chamber 510 from the second wind chamber 520.
  • the windshield wall 101 is located approximately in the middle of the housing 100, and one end of the windshield wall 101 is connected to the first windshield at the same time.
  • the arc-shaped side wall 161 and the second arc-shaped side wall 162 are connected (that is, one end of the windshield wall 101 extends to the junction of the first arc-shaped side wall 161 and the second arc-shaped side wall 162 inside the housing 100), and the The other end of the wind wall 101 extends toward the air outlet 105 .
  • the first arc-shaped side wall 161 includes a first volute tongue portion 1041
  • the second arc-shaped side wall 162 includes a second volute tongue portion 1042
  • the first arc-shaped side wall 161 is provided on the first arc-shaped side wall 161 away from the windshield.
  • the second volute tongue portion 1042 is located at the end of the second arc-shaped side wall 162 away from the windshield wall 101
  • the first volute tongue portion 1041 and the second volute tongue portion 1042 are both disposed near the air outlet 105
  • the second A volute tongue portion 1041 and a second volute tongue portion 1042 are respectively located on two sides of the windshield wall 101 .
  • the housing 100 is also provided with a guide grille 111 corresponding to the air outlet 105, and a plurality of air outlets 114 are formed on the guide grille 111, and the guide grille 111 extends toward the inside of the housing 100 and abuts against the windshield wall 101 Then, the extended width of the guide grille 111 near the windshield wall 101 is greater than the extended width of the position far away from the windshield wall 101 .
  • the first blower fan 210 and the second blower fan 220 simultaneously rotate the guide air grille 111 to blow out wind, so as to meet the requirement of large air volume.
  • the windshield wall 101 is located between the first fan 210 and the second fan 220, and abuts against the guide grille 111 to prevent the airflow generated by the first fan 210 and the airflow generated by the second fan 220 from interfering with each other and affecting the air volume . Since the rotation direction of the first fan 210 is opposite to that of the second fan 220 , the airflow is maximum at the middle position of the guide grille 111 (ie at the windshield wall 101 ).
  • the central position on the grille 111 has the largest extension width (near the windshield wall 101 ), and the extension width at both ends is the smallest (the farther away from the windshield wall 101 , the smaller the extension width is).
  • the guide grille 111 is equivalent to the extension of the air ducts of the first fan 210 and the second fan 220, especially the middle position has a larger extension width, which can play the role of a volute tongue, so that the airflow in the middle position of the guide grill 111 can Concentrated export along the same direction, and will not be canceled by mutual interference.
  • the portable fan since the portable fan includes the casing 100 and the first fan 210 and the second fan 220 arranged in the casing 100, the first fan 210 and the second fan 220 rotate at the same time to guide the air grille 111 to discharge air. , the air volume is larger.
  • the first fan 210 and the second fan 220 are separated by the windshield wall 101 without interfering with each other.
  • the extension width of the grille 111 close to the windshield wall 101 is larger than the extension width away from the windshield wall 101.
  • the grille 111 is not only used for windguide, but also can play the role of a volute tongue, so that in the windshield
  • the airflow at the middle position of the grid 111 can be concentrated and exported along the same direction without being canceled by mutual interference.
  • the portable fan is no longer provided with structures such as a handle, which can reduce the occupied volume.
  • the grille 111 is formed by connecting a plurality of transverse wind guide ribs 1111 and a plurality of longitudinal wind guide ribs, and the end of the transverse wind guide ribs 1111 facing the windshield wall 101 is formed with a blade 112, and/or, A blade portion 112 is formed at one end of the wind guiding rib facing the windshield wall 101 , and the blade portion 112 gradually becomes thinner along a direction approaching the first fan 210 /the second fan 220 .
  • the blades 112 are provided on the horizontal wind guide ribs 1111 and/or the longitudinal wind guide ribs to further reduce the resistance of the wind, and the airflow can be smoothly guided into the air outlet 114 when passing through the blades 112, Thereby increasing the wind speed and air volume.
  • the width of the horizontal wind guiding rib 1111 extending toward the side of the fan 200 gradually increases from the middle of the horizontal wind guiding rib 1111 (near the windshield wall 101 ) to the end of the horizontal wind guiding rib 1111. narrowed.
  • the width W1 at the middle of the transverse wind guiding rib 1111 is greater than the width W2 at the end of the transverse wind guiding rib 1111 .
  • the middle part of the transverse wind guiding rib 1111 extends toward the inside of the housing 100 adjacent to the side of the first fan 210 /the second fan 220 , and extends arcuately toward the end of the transverse wind guiding rib 1111 .
  • the middle part of the horizontal wind guiding rib 1111 extends in a streamlined manner to the end of the horizontal wind guiding rib 1111 to avoid influence on the air volume to the greatest extent.
  • the extension width of the horizontal air guiding rib 1111 may also decrease from the center of the horizontal air guiding rib 1111 to both ends in a stepped or broken line shape. Because the first blower fan 210 and the second blower fan 220 blow out the wind at the same time, the airflow is the largest in the middle of the horizontal wind guide rib 1111 (that is, at the windshield wall 101), and the horizontal wind guide rib 1111 is designed to be wide in the middle and narrow at both ends, and the middle part is directed toward the two sides.
  • the end arc-shaped extension structure matches the position of the air outlets of the first fan 210 and the second fan 220, thereby forming a runway for the passing wind flow, reducing the reduction of wind speed, further increasing the air volume and blowing distance, and making the wind more Blow out evenly from each outlet.
  • the extension of the horizontal air guiding ribs 1111 to the inside of the housing can guide the air flow to the middle of the horizontal air guiding ribs 1111 (ie, the wider part of the horizontal air guiding ribs), so as to adjust the wind direction and increase the air volume.
  • the horizontal air guide rib 1111 needs to be set to match it. It is a structure narrow in the middle and wide at both ends.
  • a groove 113 is formed on a side of the air guide grille 111 facing the windshield wall 101 , and a top end of the windshield wall 101 is inserted into the groove 113 .
  • the insertion of the windshield wall 101 into the groove 113 can make the connection between the windshield wall 101 and the guide grille 111 tighter, and completely isolate the first fan 210 from the second fan 220 .
  • a groove is formed on the side of the windshield wall 101 facing the guide grille 111, and the guide grille 111 is embedded in the groove, as long as the gap between the windshield wall 101 and the guide grille 111 Just connect tightly.
  • the extension width of the air conduction grill 111 gradually decreases from the center of the conduction air grill 111 to both ends.
  • the extension width of the conduction grille 111 is streamlined and smoothly reduced from the center of the conduction grille 111 to both ends, so as to avoid the influence on the air volume to the greatest extent.
  • the extension width of the conduction grille 111 may also decrease from the center of the conduction grille 111 to both ends in a stepped or broken line shape.
  • the housing 100 includes a cover plate 110, an inner shell 120, and an outer shell 130 disposed outside the inner shell 120, and the first fan 210, the second fan 220, and the windshield wall 101 are all disposed on the inner shell 120.
  • the guide grille 111 and the air outlet 105 are disposed on the cover plate 110 , and the cover plate 110 covers the opening of the inner shell 120 .
  • the upper housing wall 140 mentioned above is, for example, the inner upper wall of the inner housing 120
  • the lower housing wall 150 is, for example, the inner lower wall of the inner housing 120
  • the arc-shaped side wall 160 is, for example, the inner upper wall of the inner housing 120 and the inner arc-shaped side wall between the inner lower wall.
  • the inner shell 120 is used to form the air cavity 500 and install the first fan 210 and the second fan 220
  • the outer shell 130 is used to play the role of a protective shell and cover the outside of the inner shell 120 . Meanwhile, other components can be placed in the space between the inner shell 120 and the outer shell 130 .
  • the inner shell 120 is an open structure and is covered by the cover plate 110 .
  • the cover plate 110 and the inner shell 120 may be connected by snap fit or by screws.
  • the portable fan includes a battery, and a battery compartment 301 for accommodating the battery is formed between the inner casing 120 and the outer casing 130, and the battery 406 is placed in the battery compartment 301, and the battery 406 is used to power the first fan 210 and the second fan 220. powered by.
  • the inner casing 120 is provided with an arc-shaped air guide part 102 at a position corresponding to the battery compartment 301.
  • the arc-shaped air guide part 102 is located on the air guide grille on the cover 110 and the air outlet side of the first fan 210/second fan 220, for example.
  • the arc-shaped air guide part 102 extends from the air outlet side of the first fan 210 /the second fan 220 toward the edge of the air guide grill 111 .
  • Arranging the arc-shaped air guide part 102 makes the air outlet of the air duct have a wide-mouth design, and guides the air flow to the guide grille 111, which not only increases the air outlet angle, but also increases the air outlet volume.
  • the arc-shaped air guide part 102 includes, for example, a first arc-shaped air guide part 1021 and a second arc-shaped air guide part 1022, and the first arc-shaped air guide part 1021 and the second arc-shaped air guide part 1022 are respectively arranged on both sides of the windshield wall 101, specifically, the first arc-shaped wind guide part 1021 is arranged between the first volute tongue part 1041 and the windshield wall 101, and the second arc-shaped wind guide part 1022 is arranged between the second volute tongue portion 1042 and the windshield wall 101 .
  • the inner arc-shaped side wall of the inner casing 120 (ie, the arc-shaped side wall 160 ) includes a volute tongue portion 104 , and the volute tongue portion 104 is disposed on a side of the arc-shaped air guide portion 102 away from the windshield wall 101 .
  • the inner arc-shaped side wall of the inner casing 120 (ie, the arc-shaped side wall 160 ) further includes a wind-collecting plate 103 connected to the arc-shaped air guide portion 102 .
  • the upper end of the wind collecting plate 103 is connected to the volute tongue portion 104 , and the lower end of the wind collecting plate 103 is bent toward the windshield wall 101 .
  • the wind gathering plate 103 plays the role of guiding the wind, gathering the wind flow, and on the other hand, avoids the loss of the air volume, so that the wind flow can be sent out from the guiding grille 111 .
  • the volute tongue part 104 includes a first volute tongue part 1041 and a second volute tongue part 1042, the first volute tongue part 1041 is arranged close to the first air chamber 510, and the second volute tongue part 1042 is arranged close to the second air chamber 520 .
  • the wind collecting plate 103 includes a first wind collecting plate 1031 and a second wind collecting plate 1032, wherein the upper end of the first wind collecting plate 1031 is connected to the first volute tongue portion 1041, and the lower end of the first wind collecting plate 1031 faces the windshield
  • the wall 101 is curved, the upper end of the second wind collecting plate 1032 is connected to the second volute tongue portion 1042 , and the lower end of the second wind collecting plate 1032 is bent toward the windshield wall 101 .
  • the air outlet structure formed by the arc-shaped air guide part, the wind gathering part, and the horizontal air guide rib is set to correct the air outlet direction and increase the air volume and air outlet distance.
  • the air outlet side of the fan is designed with a wide mouth, and the air flow is guided to the air guide grille, which increases the air outlet angle, and gives the user a cooling effect while quickly cooling down.
  • Comfortable blowing experience setting the wind gathering plate connected with the arc-shaped wind guide part can play the role of wind guide on the one hand, and on the other hand can make the wind more concentrated to avoid the loss of air output; set the middle and wide ends
  • the narrow horizontal wind guide ribs that extend arc-shaped from the middle to both ends form a runway for the wind flow to reduce the reduction of wind speed, further increase the air volume and blowing distance, and make the wind blow out from the air outlets more evenly.
  • the inner shell 120 includes a first inner shell 121 and a second inner shell 122 connected to the first inner shell 121
  • the outer shell 130 includes a The first outer shell 131 on the outer side of 121 and the second outer shell 132 disposed on the outer side of the second inner shell 122 .
  • the inner upper wall of the first inner shell 121 forms, for example, the above-mentioned upper wall 140 of the housing
  • the inner lower wall of the second inner shell 122 forms, for example, the aforementioned lower wall 150 of the housing.
  • the inner arc-shaped side wall and the inner arc-shaped side wall of the second inner shell 12 are combined to form the aforementioned arc-shaped side wall 160 .
  • the first inner shell 121 is provided with a first main air inlet 302 corresponding to the first fan 210 and a second main air inlet 303 corresponding to the second fan 220
  • the first outer shell 131 is correspondingly provided with a plurality of main air inlets 304
  • a battery compartment 301 is formed between the second inner shell 122 and the second outer shell 132
  • the arc-shaped air guide part 102 is disposed on the second inner shell 122 and corresponding to the position of the battery compartment 301 .
  • the second inner shell 122 is provided with a first auxiliary air inlet 305 corresponding to the first fan 210 and a second auxiliary air inlet 306 corresponding to the second fan 220 , the first auxiliary air inlet 305 and the second auxiliary air inlet 306 Both communicate with the battery compartment 301 , and the second inner shell 122 or the second outer shell 132 are provided with a plurality of auxiliary air inlet holes 307 , and the auxiliary air inlet holes 307 communicate with the outside world and the battery compartment 301 .
  • Fan 220 plays the role of auxiliary air intake. And because the air flows through the battery compartment 301, the heat dissipation efficiency of the battery can be improved at the same time.
  • the side of the second inner shell 122 facing away from the second outer shell 132 is provided with a first mounting seat 308 and a second mounting seat 309, the first fan 210 is mounted on the first mounting seat 308, and the circumferential direction of the first mounting seat 308
  • a first auxiliary air inlet 305 is provided, and the second blower 220 is installed on the second installation base 309 , and a second auxiliary air inlet 306 is provided on the circumference of the second installation base 309 .
  • the first auxiliary air inlet 305 is a plurality of arc-shaped holes surrounding the first mount 308
  • the second auxiliary air inlet 306 is a plurality of arc-shaped holes surrounding the second mount 309 .
  • a circuit board 401 is also mounted on the second inner shell 122, the first fan 210 and the second fan 220 are connected to the circuit board 401, the cover plate 110 is provided with a switch key 402, the switch key 402 corresponds to the switch on the circuit board 401 , so that the first fan 210 and the second fan 220 can be turned on and off by pressing the switch key 402 .
  • the housing 100 is also provided with an interface 403 and an escape hole for avoiding the indicator light 404 of the circuit board 401 .
  • the interface 403 is electrically connected to the battery 406 for charging the battery 406
  • the indicator light 404 is used for displaying the state of the battery 406 .
  • the portable fan further includes a lanyard, and the lanyard is connected to both sides of the casing 130 .
  • the housing 100 is no longer provided with a handle structure, but can be carried with a lanyard by providing structures such as a rope-through hole 405 .
  • the portable fan according to the second embodiment of the present application includes an outer shell 11 , an inner shell 14 and a fan 15 , the inner shell 14 is fixed inside the outer shell 11 , and an air inlet passage is formed between the inner shell 14 and the outer shell 11 106, the air inlet channel 106 communicates with the inner shell 14, the fan 15 is installed in the inner shell 14, one side of the outer shell 11 is provided with an anti-blocking structure 21, and the anti-blocking structure 21 is provided with a plurality of air inlet holes 101, and a plurality of The air inlet holes 101 communicate with the air inlet channels 106 respectively.
  • the fan 15 is a centrifugal fan.
  • the outer surface of the casing 11 of the portable fan of this embodiment is provided with an anti-blocking structure 21, so that the surface of the casing 11 is uneven, and then the air inlet hole 101 is set on the uneven surface of the casing 11, which can not only avoid dust and other particulate matter Adsorbed on the casing 11, causing the air inlet hole 101 to be blocked, it can also prevent the hand from affecting the air inlet volume of the air inlet hole when the user holds the portable fan casing; at the same time, it can also play the role of air guide, Then increase the air supply rate, and finally increase the air output of the portable fan.
  • the anti-blocking structure 21 includes a plurality of protrusions 21a, and a depression 21b is formed between two adjacent protrusions 21a, and each air inlet hole 101 is respectively disposed in the depression 21b. Therefore, when the surface of the housing 11 is blocked, the raised portion 21a will be in contact with the blocking object, so as to avoid the risk of the air inlet hole 101 being completely covered by the blocking object and thus causing blockage;
  • the inner direction of the casing 11 gradually increases, so the inner wall surface of the recessed part 21b can be made to be an inclined surface. When the air is blown to the air inlet channel 106, the inclined surface of the recessed part 21b can also play the role of guiding the air, thereby increasing the airflow. wind speed.
  • the plurality of protrusions 21 a on the anti-blocking structure 21 can be arranged continuously and form wavy ribs. That is, the anti-blocking structure 21 can be composed of a plurality of closely arranged wavy ribs 21a, each rib 21a extends along the length direction of the housing 11, and the cross-sectional area of each rib 21a faces the inner direction of the housing 11 Gradually increase until the bottom surfaces of the ribs 21a towards the inside of the housing 11 are connected to each other, and the crest of one of the two adjacent ribs 21a corresponds to the trough of the other rib 21a.
  • the outer shell 11 includes a first outer shell 111 and a second outer shell 112 which are oppositely arranged, the first outer shell 111 is fixedly connected to the second outer shell 112, and the first outer shell 111 and the second outer shell 112 are respectively fixedly connected to On both sides of the inner shell 14 , the first outer shell 111 is provided with an anti-blocking structure 21 , and the second outer shell 112 is provided with an anti-blocking structure 21 .
  • the plurality of air inlet holes 101 on the first outer casing 111 form the first air inlet mesh opening 102
  • the plurality of air inlet holes 101 on the second outer casing 112 form the second air inlet mesh opening 103 .
  • both the first outer shell 111 and the second outer shell 112 are arc-shaped shells, and the first outer shell 111 and the second outer shell 112 are connected through an interference fit of shaft holes, which can be easily disassembled; if the first outer shell The shell 111 and the second outer shell 112 do not need to be disassembled, and the first outer shell 111 and the second outer shell 112 can be fixedly connected by glue or the like.
  • first outer shell 111 facing the inner shell 14 is provided with a plurality of connecting posts or connecting bumps.
  • the first outer shell 111 is fixedly connected to the inner shell 14 through a connecting post or a connecting bump.
  • the first outer shell 111 and the inner shell 14 are arranged at intervals through connecting posts or connecting bumps, which can ensure a gap between the first outer shell 111 and the inner shell 14 to form the air inlet passage 106 .
  • the side of the second outer casing 112 facing the inner casing 14 is also provided with a plurality of connecting columns or connecting projections, and the second outer casing 112 and the inner casing 14 are also fixedly connected by connecting columns or connecting projections, and through the connecting columns Alternatively, the connecting protrusions can also space the second outer shell 112 and the inner shell 14 to ensure a gap between the second outer shell 112 and the inner shell 14 to form the air inlet channel 106 .
  • the air inlet channel 106 between the first outer shell 111 and the inner shell 14 and the air inlet channel 106 between the second outer shell 112 and the inner shell 14 can be selected according to the actual situation.
  • the outer shell 11 also includes a bottom plate 12 and a cover plate 13 oppositely disposed, and the bottom plate 12 and the cover plate 13 are respectively fixedly connected to two sides of the inner shell 14 along the radial direction of the fan.
  • an accommodating cavity is formed between the first outer shell 111, the second outer shell 112, the bottom plate 12 and the cover plate 13, the inner shell 14 is located in the accommodating cavity, and a gap is formed between the inner shell 14 and the wall of the accommodating cavity.
  • Wind channel 106 is formed between the first outer shell 111, the second outer shell 112, the bottom plate 12 and the cover plate 13, the inner shell 14 is located in the accommodating cavity, and a gap is formed between the inner shell 14 and the wall of the accommodating cavity.
  • first outer shell 111 and the second outer shell 112 are spaced apart from the bottom plate 12 to form a first air inlet gap 104, and the first outer shell 111 and the second outer shell 112 are both spaced apart from the cover plate 13 to form a second air inlet gap.
  • Wind clearance 105 Both the first air inlet gap 104 and the second air inlet gap 105 communicate with the air inlet channel 106 . Therefore, multi-directional air intake is realized, not only the air intake volume of the portable fan can be increased, but also the air output volume of the portable fan can be increased.
  • the second air intake gap 105 can realize hidden air intake, which can ensure the appearance of the portable fan while increasing the air intake.
  • the first air inlet gap 104 is arranged around the end surfaces of the first outer shell 111 and the second outer shell 112, and forms a complete circle of the first air inlet gap 104, and the second air inlet gap 105 surrounds the first outer shell 112.
  • the shell 111 and the other end surface of the second outer shell 112 are arranged to form a complete circle of the second air inlet gap 105 . Therefore, the intake air volume can be further increased. But it is not limited thereto.
  • the first outer shell 111 and the second outer shell 112 are spaced from the bottom plate 12 to form a plurality of discontinuous first air intake gaps 104.
  • the first outer shell 111 and the second outer shell 112 are connected to the The cover plates 13 are arranged at intervals to form a plurality of discontinuous second air intake gaps 105 . At this time, the air intake volume is reduced relative to the former, but it effectively prevents water, dust or hair from entering the housing 11 .
  • the inner shell 14 includes a first inner shell 141 and a second inner shell 142 oppositely arranged, the fan 15 is installed between the first inner shell 141 and the second inner shell 142, the first inner shell 141 is provided with a The first air inlet window 107 of the inner shell 141, the air inlet passage 106 communicates with the first air inlet window 107; Two air inlet windows 201.
  • the second inner shell 142 is provided with a battery compartment 108, and the battery 16 is fixed inside the battery compartment 108, and a third air intake gap 109 is provided between the battery 16 and the cavity wall of the battery compartment 108, and the air intake channel 106 passes through the third The air inlet gap 109 communicates with the second air inlet window 201 .
  • the battery 16 when the battery 16 is installed on the second inner shell 142, if the wind in the air inlet channel 106 enters between the first inner shell 141 and the second inner shell 142, it can pass between the battery 16 and the battery compartment.
  • the chamber walls of 108 are spaced apart to form a third air inlet gap 109, and then the air inlet passage 106 is communicated to between the first inner shell 141 and the second inner shell 142 through the third air inlet gap 109, ensuring that the first inner shell
  • the fan 15 between 141 and the second inner shell 142 can absorb more air intake.
  • both the first inner shell 141 and the second inner shell 142 are arc-shaped, the first outer shell 111 is fixedly connected to the first inner shell 141 , and the second outer shell 112 is fixedly connected to the second inner shell 142 .
  • the second inner shell 142 includes an installation frame 1421 and a partition 1422, the partition 1422 is fixedly connected in the installation frame 1421, the fan 15 is arranged between the partition 1422 and the first inner shell 141, and the partition 1422 is far away from the fan 15
  • One side and the installation frame 1421 form the battery compartment 108.
  • the partition plate 1422 is arranged in the installation frame 1421 and forms the battery compartment 108.
  • the battery 16 is installed in the battery compartment 108, and the fan 15 is arranged between the partition plate 1422 and the battery compartment 108.
  • the total length of the portable fan can be reduced, and the space utilization rate can be improved; and, the second air inlet window 201 passing through the partition board 1422 is provided on the partition board 1422, and the third air inlet gap 109 communicates with the second air inlet window 201 , which can ensure that the second air inlet network port 103 smoothly sends air into the space between the first inner shell 141 and the second inner shell 142 .
  • the inner shell 14 is provided with an air outlet 202
  • the cover plate 13 is provided with a guide air grill 131
  • the guide air grill 131 is arranged correspondingly to the air outlet 202
  • the side of the second inner shell 142 away from the bottom plate 12 is connected to the guide air grille.
  • An air outlet gap 203 is provided between the grids 131 , and the air outlet gap 203 communicates with the air outlet 202 .
  • the air outlet gap 203 is provided between the side of the second inner shell 142 away from the bottom plate 12 and the conduction grille 131 , the entire end surface of the second inner shell 142 close to the conduction grille 131 By leaning against the air guide grille 131, the air outlet 202 can be enlarged, and the design of the wide-mouth air outlet 202 can be realized, and the air output can be increased.
  • the side of the separator 1422 away from the battery compartment 108 is fixed with a volute 17 (that is, an arc-shaped side wall), the fan 15 is installed in the volute 17, and the air outlet end surface of the volute 17 near the air outlet 202 and the guide style
  • the grid 131 is fixedly connected, and the partition plate 1422 is spaced apart from the conduction grid 131 .
  • the partition 1422 includes a straight plate portion 142a and an arc-shaped air guide portion 142b fixedly connected with the straight plate portion 142a.
  • the portion 142b is spaced apart from the conduction grill 131 .
  • the second air inlet window 201 is disposed on the straight plate portion 142 a , and the arc-shaped air guide portion 142 b is bent away from the first inner shell 141 to form one of the chamber walls of the battery compartment 108 .
  • the volute 17 includes a first volute body portion 171 and a second volute body portion 172 , and a first volute tongue portion 173 and a second volute tongue portion 174 .
  • One side of the first volute main body 171 is fixedly connected with the first inner shell 141, and the other side of the first volute main body 171 is fixedly connected with the second volute main body 172 to form the air chamber 204, and the fan 15 is installed in the wind chamber.
  • the second volute body part 172 is fixedly connected with the straight part 142a.
  • the first volute tongue portion 173 is fixedly connected to the first inner shell 141 , and the first volute tongue portion 173 is fixedly connected to the end of the first volute main body portion 171 .
  • the first volute tongue portion 173 is fixedly connected to the second volute tongue portion 174 to form an air guide channel communicating with the air cavity 204 .
  • the second volute tongue portion 174 is fixedly connected to the arc-shaped air guiding portion 142 b and is located between the arc-shaped air guiding portion 142 b and the air guiding grill 131 .
  • the air outlet 202 of the air guide channel is the air outlet 202 of the inner casing 14, and the air guide channel can prevent part of the gas from circulating in the air cavity 204;
  • the direction of the inner shell 141 is bent, and when the second volute tongue portion 174 is fixedly connected to the arc-shaped air guide portion 142b facing above the side of the air guide grille 131, the air outlet 202 can be enlarged, and the design of the wide-mouth air outlet 202 is realized. Also increased the air volume.
  • two volutes 17 are provided on the side of the partition 1422 away from the battery compartment 108 , and the portable fan includes two blowers 15 installed in the volutes 17 respectively, and the rotation directions of the two blowers 15 are opposite.
  • the air outlets 202 of the two volutes 17 are arranged adjacent to each other, so as to ensure uniform air output from the air outlet portable fan.
  • the portable fan also includes a button assembly 18 and a circuit board, the circuit board is installed in the casing 11, the button assembly 18 includes a button part, a connection part and a response element, the button part is installed on the side of the cover plate 13 away from the accommodating cavity, The other side of the cover plate 13 is provided with a supporting seat, the connecting part is installed in the supporting seat, one end of the connecting part is connected with the button part, the other end of the connecting part is connected with the response element, and the response element is electrically connected with the circuit board.
  • the portable fan further includes a hanging rope 19 which is detachably connected to the casing 11 .
  • the portable fan can be hung at a designated location by the lanyard 19, which expands the usage scenarios of the portable fan.
  • the lanyard 19 can be detached from the casing 11, the storage of the portable fan is more convenient.
  • the portable fan according to the third embodiment of the present application includes a casing 10 and a key assembly
  • the key assembly includes a button part 21, an elastic support 22, a connecting rod 23 and a switch element 24, and the button part 21 is mounted on the casing 10
  • the elastic supporting member 22 is fixedly connected in the shell 10 and elastically supports the button part 21,
  • the triggering direction of the switch element 24 is misaligned with the displacement direction of the button part 21,
  • the connecting rod 23 is linked and connected between the button part 21 and the switch element 24.
  • the connecting rod 23 responds to the displacement of the button part 21 and triggers the switch element 24 .
  • the triggering direction of the switch element 24 and the displacement direction of the button portion 21 are perpendicular to each other.
  • the elastic supporting member 22 is made of plastic with good elasticity, such as thermoplastic elastomer, polyethylene plastic body and the like.
  • the portable fan of the present application is fixedly connected to the housing 10 through the elastic support member 22 and elastically supports the button part 21, which can prevent the button part 21 from excessive displacement after being pressed, and cause the button part 21 to move completely inside the housing 10 without causing any damage. Reset will eventually lead to the problem of deformation of the entire button assembly, so the quality of the portable fan is guaranteed. At the same time, even if the triggering direction of the switch element 24 and the displacement direction of the button portion 21 are misplaced and the switch element 24 cannot elastically support the button portion 21, the elastic support member 22 can make the button portion 21 elastically stretchable by itself. Precise automatic reset.
  • a connecting rod 23 is set between the button part 21 and the switch element 24, and the connecting rod 23 responds to the displacement of the button part 21 and triggers the switch element 24, so that the signal transmission between the button part 21 and the switch element 24 can be guaranteed, so that The switch element 24 can even feed back the signal from the button part 21 .
  • the housing 10 is provided with a mounting hole penetrating through the housing 10 , the button part 21 is fixedly connected to the elastic support 22 through the mounting hole, and the length of the elastic support 22 is greater than the diameter of the mounting hole.
  • the shape of the mounting hole is the same as that of the button portion 21, and the volume of the button portion 21 is equal to or slightly smaller than the volume of the mounting hole, so that when the button portion 21 moves up and down along the axis of the mounting hole, it can also It is ensured that the button part 21 will not shake in the installation hole.
  • the elastic support member 22 can limit the button portion 21 to the outside of the housing 10. The displacement distance ensures that the button part 21 will not completely break away from the housing 10 .
  • the elastic support member 22 includes a first connecting portion 221, a second connecting portion 222 and a limiting portion 223, the first connecting portion 221 and the second connecting portion 222 are respectively fixedly connected to both sides of the limiting portion 223, the first The connecting part 221 and the second connecting part 222 are fixedly connected to the inner wall of the housing 10 through the shaft hole.
  • the button part 21 is fixedly connected to the limiting part 223.
  • the button part 21 includes a connecting shaft 211, and the connecting shaft 211 passes through the limiting part 223. And be linked with connecting rod 23 and be connected.
  • the first connecting part 221 is provided with the first fixing hole 103
  • the second connecting part 222 is provided with the second fixing hole 104
  • the inner wall of the casing 10 is provided with the first fixing shaft and the second fixing shaft
  • the second A fixed shaft and the first fixed hole 103 can adopt an interference connection
  • the second fixed shaft and the second fixed hole 104 can also adopt an interference connection, which can facilitate the replacement or maintenance of the elastic support member 22; or between the first fixed shaft and the second
  • One fixing hole 103 can be directly fixedly connected by glue
  • the second fixing shaft and second fixing hole 104 can also be directly fixedly connected by glue, which can ensure the firmness between the elastic support member 22 and the shell 10 .
  • first connecting portion 221 is fixedly connected to the limiting portion 223, and the other end of the first connecting portion 221 bends and extends around the circumferential direction of the limiting portion 223, wherein the first fixing hole 103 is provided on the first connecting portion.
  • the portion 221 is away from the end of the limiting portion 223 .
  • One end of the second connecting portion 222 is fixedly connected to the limiting portion 223 , and the other end of the second connecting portion 222 bends and extends toward the direction close to the first connecting portion 221 , wherein the second fixing hole 104 is provided at the second connecting portion 222 close to one end of the first connecting portion 221 .
  • the elastic supporting member 22 further includes a reinforcing rib 224 , and the first connecting portion 221 and the second connecting portion 222 are fixedly connected to form an integral structure through the reinforcing rib 224 .
  • the first connecting part 221, the second connecting part 222 and the reinforcing rib 224 are fixed and connected into an integral structure, it can ensure that the first connecting part 221 and the second connecting part 222 are evenly stressed, and avoid the first connecting part 221 One of the connecting parts 222 is over-stressed and the elastic supporting part 22 is deformed excessively, so that the button part 21 cannot be supported.
  • the connecting line between the first fixing hole 103, the second fixing hole 104 and the center of the limiting part 223 together forms a triangular area, so the first fixing hole 103, the second fixing hole 104 and the limiting part 223 The centers of are the three vertices of the triangle.
  • the ends of the two fixing holes 104 then use the resilience of the first connecting portion 221 and the second connecting portion 222 to play a rebound effect on the limiting portion 223, coupled with the resilience of the limiting portion 223 itself, and finally make the button
  • the portion 21 is accurately reset by the elastic rebound of the limiting portion 223 .
  • the connecting line between the first fixing hole 103, the second fixing hole 104 and the center of the limiting portion 223 jointly forms an equilateral triangle area, and the first connecting portion 221 is close to the first fixing
  • the end portion of the hole 103 is fixedly connected with the reinforcing rib 224, and the end portion of the second connecting portion 222 close to the second fixing hole 104 is also fixedly connected with the reinforcing rib 224, and the first connecting portion 221 and the second connecting portion 222 are also respectively connected with the limiter.
  • the two sides of part 223 are fixedly connected. Therefore, it can be ensured that a stable force bearing plane is formed among the first connecting portion 221 , the second connecting portion 222 , the reinforcing rib 224 and the limiting portion 223 .
  • the button portion 21 is cylindrical, and the limiting portion 223 is annular and arranged around the circumference of the button portion 21 , so that the limiting portion 223 can evenly support various parts of the button portion 21 .
  • the diameter of the limiting portion 223 is larger than the diameter of the mounting hole, therefore, after the button portion 21 is fixedly connected with the limiting portion 223, the distance of the displacement of the button portion 21 toward the outside of the housing 10 can be limited to ensure that the button portion 21 will not completely disengage. shell10.
  • the button portion 21 is disposed on the same side as the air outlet 101 provided on the casing 10, which not only provides convenience for users to use, but also enhances the appearance of the portable fan.
  • the connecting rod 23 includes a first transmission part 231 , a second transmission part 232 and a third transmission part 233 , the second transmission part 232 is linked and connected between the button part 21 and the first transmission part 231 , and the third transmission part 233 The linkage connection is between the first transmission part 231 and the switch element 24 .
  • the first transmission part 231 , the second transmission part 232 and the third transmission part 233 may be integrally structured.
  • the second transmission part 232 when the second transmission part 232 is connected in linkage between the button part 21 and the first transmission part 231, and the third transmission part 233 is connected in linkage between the first transmission part 231 and the switch element 24, it is possible to change the first transmission
  • the extension direction among the portion 231 , the second transmission portion 232 and the third transmission portion 233 changes the vertical downward force generated by the button portion 21 on the connecting rod 23 into, for example, a horizontal driving force. Therefore, the position of the switch element 24 is not limited to being directly opposite to the button portion 21, but the specific installation position of the switch element 24 can be selected according to the actual space inside the housing 10, and finally the space utilization rate of the portable fan can be improved.
  • a fan 12 an air guiding shell 13 , a circuit board 14 and a mounting base 11 for mounting a connecting rod 23 are also fixed in the casing 10 .
  • the fan 12 is installed in the air guide shell 13, the air guide shell 13 is fixedly connected to the inner wall of the housing 10, the circuit board 14 is fixed on one side of the air guide shell 13, and the switch element 24 is electrically connected to the circuit board 14 toward the guide.
  • the mounting seat 11 is fixedly connected to the side of the air guiding casing 13 close to the circuit board 14 .
  • the fan 12 is a centrifugal fan 12 , so the air outlet 101 of the portable fan is arranged along the radial direction of the centrifugal fan 12 .
  • the first transmission part 231 is movably connected in the mounting base 11 .
  • the first transmission part 231 is movably connected in the installation seat 11 to ensure that the connecting rod 23 will not deviate from a specific position during the linkage process with the button part 21, that is, to ensure the reliability of the key assembly, and will not interfere with the connecting rod. 23 linkages.
  • the first rotating shaft 2311 and the second rotating shaft 2312 are respectively fixed on both sides of the first transmission part 231, and the mounting base 11 is provided with a second rotating shaft 2311 and the second rotating shaft 2312.
  • a shaft hole 102 and a second shaft hole, the first rotation shaft 2311 is rotatably connected in the first shaft hole 102
  • the second rotation shaft 2312 is rotatably connected in the second shaft hole.
  • an included angle is formed between the second transmission part 232 and the third transmission part 233, and the included angle is larger than 0° and smaller than 180°. In this embodiment, the included angle is greater than 90° and less than 180°.
  • the second transmission part 232 extends obliquely from the side of the wind guide shell 13 close to the button part 21 to the side of the wind guide shell 13 close to the circuit board 14, and the first transmission part 231 and the third transmission part 233 are located on the side of the wind guide shell 13.
  • the case 13 is on a side close to the circuit board 14 .
  • the switch element 24 includes a base 241 and a sensing part 242, the base 241 is fixedly connected with the circuit board 14, the sensing part 242 is mounted on the base 241 and protrudes toward the air guide shell 13, the third transmission part 233 is connected from the first An end of a transmission part 231 extends to contact with the sensing part 242 of the switch element 24 and is located between the sensing part 242 and the wind guiding case 13 .
  • the switch element 24 is, for example, an electronic key, and is used for processing the signal transmitted from the button portion 21 .
  • the portable fan according to the fifth embodiment of the present application includes an air guiding shell 11 , a first fan 12 , a second fan 13 , a battery 14 and a circuit board 15 , and the air guiding shell 11 is provided with an air cavity 101 and the installation chamber 102, the air chamber 101 and the installation chamber 102 are arranged at intervals along the height direction of the air guide shell 11, and the first fan 12 and the second fan 13 are installed in the air chamber 101 and spaced apart along the length direction of the air guide shell 11 Set, the first fan 12 is arranged on one side of the second fan 13 along the radial direction of the second fan 13, the battery 14 and the circuit board 15 are respectively located in the installation cavity 102, and the part of the installation cavity 102 that accommodates the battery 14 can be defined as In the battery cavity, the battery 14 is arranged corresponding to the first fan 12 along the axial direction of the first fan 12, the circuit board 15 is arranged corresponding to the second fan 13 along the axial direction of the second fan 13, and
  • the first fan 12 and the second fan 13 are both centrifugal fans
  • the radial direction of the centrifugal fan is the width direction of the air guide shell 11
  • the axial direction of the centrifugal fan is the height direction of the air guide shell 11
  • the total length direction of the two centrifugal fans is the length direction of the air guiding shell 11, and the rotation directions of the two centrifugal fans are opposite.
  • the air cavity 101 and the installation cavity 102 of the portable fan of the present application are arranged at intervals along the height direction of the air guide shell 11, and the first fan 12 and the second fan 13 are installed in the air cavity 101 and along the length of the air guide shell 11
  • the direction is arranged horizontally at intervals; the battery 14 and the circuit board 15 are respectively installed in the installation cavity 102, the battery 14 is arranged corresponding to the first fan 12 along the axial direction of the first fan 12, and the circuit board 15 is arranged along the axis of the second fan 13
  • the direction corresponding to the second fan 13 is set.
  • the length and width of the air cavity 101 is exactly the length and width of the whole portable fan, and the height of the wind cavity 101 plus the thickness of the circuit board 15 or the battery 14 is the height of the whole portable fan, so not only the volume of the portable fan is reduced, but also the optimization
  • the internal space of the portable fan is improved; the wind cavity 101 of the portable fan can also be made larger.
  • the air outlet 103 is arranged along the width direction of the air guide shell 11, and the air inlet 104 is arranged along the height direction of the air guide shell 11, which changes the appearance of the portable fan and improves the aesthetic feeling of the portable fan.
  • the wind deflector shell 11 includes a front shell portion 111 and a rear shell portion 113 which are oppositely arranged, and a motor bracket 112 connected between the front shell portion 111 and the rear shell portion 113, and between the front shell portion 111 and the motor bracket 112
  • the fixed connection forms the air cavity 101
  • the fixed connection between the motor bracket 112 and the rear shell part 113 forms the installation cavity 102 .
  • the air guiding case 11 is provided with a first volute part 1111 , a first volute tongue part 1112 , a second volute part 1113 and a second volute tongue part 1114 , and the first fan 12 is installed on the first volute part 1111
  • the first volute part 1112 is fixedly connected with the first volute part 1111, and the first volute part 1112 is provided with an air outlet 103
  • the second fan 13 is installed in the second volute part 1113, and the second volute part 1114 is fixedly connected with the second volute part 1113, and the second volute tongue part 1114 is provided with an air outlet 103
  • the two air outlets 103 face the same direction to discharge air.
  • the first volute part 1111 and the first volute tongue part 1112 are fixedly connected between the front housing part 111 and the motor bracket 112, and the second volute part 1113 and the second volute tongue part 1114 are fixedly connected in front.
  • the first volute part 1111 , the first volute tongue part 1112 , the second volute case part 1113 and the second volute tongue part 1114 are located in the air cavity 101 .
  • the first blower fan 12 includes a first fan blade and a first motor, the first fan blade is fixedly connected to the rotating shaft of the first motor, the second fan fan 13 includes a second fan blade and a second motor, and the second fan blade is connected to the first fan blade.
  • the rotating shafts of the two motors are fixedly connected, and the first motor and the second motor are fixed on the side of the motor bracket 112 close to the front casing part 111 at intervals and located in the first volute part 1111 and the second volute part 1113 .
  • a partition 1131 is provided in the installation cavity 102, and the partition 1131 divides the installation cavity 102 into a first accommodation groove 105 and a second accommodation groove 106, the battery 14 is fixedly connected in the first accommodation groove 105, and the circuit The board 15 is fixedly connected to the second receiving slot 106 , and the battery 14 is electrically connected to the circuit board 15 .
  • the air guiding shell 11 is provided with two air inlets 104 , both of which are located on the front shell portion 111 , and the two air inlets 104 communicate with the first volute portion 1111 and the second volute portion 1113 respectively.
  • the portable fan also includes a front side plate 16, which is fixedly connected to the air guiding shell 11, and the front side plate 16 is provided with an air outlet grille 161, which is arranged correspondingly to the air outlet 103.
  • the air outlet end surfaces of the first volute tongue portion 1112 and the second volute tongue portion 1114 of the wind guiding shell 11 are fixedly connected to the grill bars of the air outlet grille 161 .
  • the button assembly includes a button part 17 and a response element.
  • the button part 17 passes through the front side panel 16 and is movably installed in the installation space 107 , the response element is linked with the button part 17 and located in the installation space 107 , and the response element is electrically connected with the circuit board 15 .
  • the side of the air guide shell 11 opposite to the front side plate 16 is also provided with a connection hole
  • the portable fan also includes a connector 18 for connecting to an external power supply, and the connector 18 is installed on the The connection hole is electrically connected to the circuit board 15 .
  • the wind guide housing 11 includes a bottom plate 114 opposite to the front side plate 16, and the connection hole is arranged on the bottom plate 114 and penetrates the bottom plate 114, so that the connector 18 is electrically connected to the circuit board 15 and connected through the connection hole. exposed inside.
  • the connector 18 is located at the gap 108 between the first volute portion 1111 and the second volute portion 1113 , so the space utilization rate of the portable fan can be improved.
  • the portable fan also includes a first shell 19 and a second shell 21 oppositely arranged, the air guide shell 11 is fixedly connected between the first shell 19 and the second shell 21, and the first shell 19 is provided with a plurality of penetrating second shells.
  • a ventilation hole of the housing 19 the ventilation hole communicates with the air inlet 104 .
  • the first shell 19 is fixedly connected to the front shell part 111
  • the second shell 21 is fixedly connected to the rear shell part 113
  • the bottom plate 114 and the front side plate 16 are arranged between the first shell 19 and the second shell 21.
  • the fifth embodiment of the present application provides a portable fan 10, which includes an outer shell 12, an inner shell 14, a fan 16 inside the inner shell 14, and a lanyard connected to the inner shell 14.
  • the casing 14 is provided with an air inlet 26 and an air outlet 24 corresponding to the fan 16 .
  • the outer shell 12 surrounds the inner shell 14 to cover the air inlet 26, so that the overall appearance of the product is improved.
  • There is a gap 28 between the inner shell 14 and the outer shell 12 which communicates with the air inlet 26 and the outside world.
  • the gap 28 forms an air inlet channel for the fan.
  • the portable fan 10 is equipped with a lanyard, and is a portable fan that can be used by hand or neck.
  • the lanyard may not be provided, and the portable fan 10 is only used by hand.
  • the portable fan 10 of the application can be converted into various forms and used in different scenarios.
  • the portable fan 10 is in the shape of a box as a whole.
  • the portable fan 10 can also be designed in other shapes.
  • the outer shell 12 is open at both ends to expose the top and bottom surfaces of the inner shell 14 , and the outer shell 12 is formed with a receiving cavity 20 .
  • the inner shell 14 can slide relative to the outer shell 12 between the storage position and the extended position, wherein, in the stored position, the inner shell 14 is accommodated in the storage cavity 20, and the outer shell 12 blocks the air inlet 26 at this moment; when in the extended position,
  • the inner shell 14 at least partially protrudes from the receiving chamber 20 .
  • the outer shell 12 may also be a structure with an open top and a closed bottom, so that only the top surface of the inner shell 14 is exposed, thereby exposing the air outlet 24 of the inner shell 14 .
  • the side of the inner shell 14 is provided with a storage groove 22 for the storage of the hanging rope 18, such as the hanging rope 18 is wound and stored in the storage groove 22, so that when the hanging rope 18 does not need to be used, such as a portable fan 10 When it needs to be used by hand, the inner shell 14 can be pulled out to wrap the lanyard 18 and store it in the storage groove 22, so as to avoid affecting the user's hand-held use.
  • the receiving groove 22 is arranged along the circumference of the inner shell 14, which is convenient for users to operate.
  • the air outlet 24 is arranged on the upper end cover 15 of the inner shell 14 corresponding to the position of the fan 16
  • the air inlet 26 is arranged on the side of the inner shell 14 corresponding to the position of the fan 16 .
  • the air inlets 26 are arranged on the front and rear sides of the inner casing 14 to ensure sufficient air intake.
  • the gap 28 is formed between the outer surface of the inner shell 14 and the inner surface of the outer shell 12, and the air inlet 26 communicates with the gap 28.
  • the opening structure at the upper and lower ends of the outer shell 12 makes the gap 28 communicate with the outside world, so that the air inlet 26 can pass through the gap.
  • the distance between the inner surface of the outer shell 12 and the outer surface of the inner shell 14 is 0.5 to 3mm, that is, the gap 28
  • the size of the distance range is 0.5 to 3 mm, preferably 1.5 mm. The size of this distance range can prevent debris from falling into the gap 28 from the upper and lower ends of the housing 12 while ensuring that the air intake of the fan wheel 32 is satisfied, and can also avoid the gap of the housing 12
  • the side wall is blocked to the air inlet 26, which affects the air intake.
  • the blower fan 16 includes a volute 30 and two fan wheels 32 , the fan wheels 32 are centrifugal fan wheels for example, and the use of the two centrifugal fan wheels enables the fan to produce a large amount of wind.
  • the volute 30 includes a first volute part 34 and a second volute part 36 arranged side by side along the length direction of the inner casing 14, and the two fan wheels 32 are installed on the first volute part 34 and the second volute respectively. Section 36.
  • the first volute part 34 and the second volute part 36 face the side of the air outlet 24, that is, the upper end is respectively provided with a first air outlet part 38 and a second air outlet part 40, and the first volute part 34 and the second A first air inlet portion 42 and a second air inlet portion 44 are respectively provided on the volute portion 36 corresponding to the air inlets 26 to facilitate the fan wheel 32 to take in air.
  • the volute 30 includes a front shell 30 a and a rear shell 30 b that are docked with each other, and the two can be detachably connected by means of buckles, etc., for easy assembly and disassembly.
  • the storage groove 22 extends through the air inlet 26, that is, the path part of the extension of the storage groove 22 overlaps with the side wall area of the inner shell 14 where the air inlet 26 is located, which can save the overall size of the inner shell 14 and make the product smaller .
  • the area corresponding to the air inlet 26 at the bottom of the storage tank 22 is provided with a number of openings 45, so that the opening 45 can enter the air after the lanyard is taken out from the storage tank, and the influence of the setting of the storage tank 22 on the fan wheel 32 air intake is reduced. .
  • a battery 46 and a circuit board 48 are also provided in the inner casing 14 , and the battery 46 and the circuit board 48 are arranged in the inner casing 14 in parallel with the volute 30 at intervals.
  • the upper end cover 15 of the inner shell 14 is provided with a switch 50 , the battery 46 , the switch 50 and the blower 16 are respectively electrically connected to the circuit board 48 , and the switch 50 is used to control the start and stop of the blower 16 .
  • the switch 50 can also add functions such as wind speed adjustment on the basis of controlling start and stop, or additionally set function keys to realize control.
  • a sliding structure is provided between the outer shell 12 and the inner shell 14 , so that the inner shell 14 can expand and contract relative to the outer shell 12 through the sliding structure.
  • the sliding structure includes a sliding guide rail 52 and a sliding guide groove 54 , and the sliding guide rail 52 and the sliding guide groove 54 are slidably engaged.
  • the sliding guide rail 52 is disposed on one of the inner wall of the outer shell 12 and the outer wall of the inner shell 14
  • the sliding guide groove 54 is disposed on the other of the inner wall of the outer shell 12 and the outer wall of the inner shell 14 .
  • the sliding guide rails 52 are arranged on the outer wall surface of the inner shell 14, and there are multiple sliding guide rails 52 arranged at intervals along the circumferential direction of the inner shell 14; correspondingly, the sliding guide grooves 54 are arranged on On the inner wall surface of the housing 12 , the number and position of the sliding guide grooves 54 correspond to the sliding guide rails 52 .
  • each sliding guide groove 54 is formed by two ribs arranged at intervals in parallel, and the ends of the two ribs near the top surface of the housing 12 are connected to each other, so that the upper end of the sliding guide groove 54 is arranged as a closed structure, and the closed structure can Sliding up the inner shell 14 to prevent the inner shell 14 from falling out of the outer shell 12 during the sliding process.
  • a damping structure can also be provided between the sliding guide rail 52 and the sliding guide groove 54 to increase the frictional resistance of the inner shell 14 to telescopically slide relative to the outer shell 12, prevent the inner shell 14 from sliding relative to the outer shell 12 in the absence of external force, and This allows the inner shell 14 to telescopically slide to any position relative to the outer shell 12 and stay firmly at this position.
  • the two ends of the side length direction of the inner shell 14 are respectively provided with bumps 56 near the upper end of the inner shell 14, and the two ends of the lanyard 18 are respectively connected to the two bumps 56, and the outer shell 12
  • the upper end is provided with a limiting groove 58 corresponding to the protruding block 56 , and when the inner shell 14 slides to the storage position, the protruding block 56 abuts in the limiting groove 58 .
  • the protrusion 56 can be locked in the limiting groove 58 by buckling or the like, so as to limit the sliding of the inner shell 14 and at the same time make the connection between the inner shell 14 and the outer shell 12 stable.
  • the inner shell 14 When the inner shell 14 is in the storage position, the inner shell 14 is accommodated in the storage cavity 20, and the outer shell 12 also covers the storage groove 22 while covering the air inlet 26, so that the product has a beautiful appearance; when in the extended position, the inner shell 14 At least part of it protrudes from the receiving cavity 20 and exposes the receiving groove 22 , which is convenient for the user to take out or store the lanyard 18 .
  • the bumps 56 are arranged on the opposite sides of the inner casing 14 and close to the top surface, and the switch 50 and the air outlet 24 are all arranged on the top surface of the inner casing 14, so that when the lanyard 18 is used, it can be just It is hung on the neck of the human body to blow air toward the face of the human body, and it is convenient to operate the switch 50 .
  • the structure of the portable fan 10 is the same as that of the aforementioned fifth embodiment, the difference is that in this embodiment, the outer casing 12 is fixedly connected to the outside of the inner casing 14, and the outer casing 12 surrounds the inner casing.
  • the four surfaces of the shell 14 i.e., the front, rear, left, and right surfaces
  • the areas where the plurality of through holes 60 are arranged respectively cover most of the area of each surface of the shell 12, that is, the through holes 60
  • the area also covers other areas on the surface of the inner shell 14.
  • the area of the through hole 60 preferably covers the entire surface of the outer shell 12, and the area between the outer shell 12 and the inner shell 14
  • the gap 28 can communicate with the outside world through the through hole 60, so that the fan wheel 32 in the inner shell 14 can communicate with the outside world through the air inlet 26 through the gap 28 and through the through hole 60, and the area where the through hole 60 is arranged covers the outer shell 12 respectively.
  • Most of the area of each surface so that when the user holds the shell 12 of the portable fan in hand, even if some of the through holes 60 are blocked by hand contact, the air can also enter through other through holes 60, so that the user can use the portable fan in hand. , it will not affect the air intake of the fan, which is convenient for users to use.
  • the upper and lower ends of the outer shell 12 may not be spaced from the inner shell 14, that is, the upper and lower ends of the outer shell 14 may be respectively connected with the upper and lower ends of the inner shell 14, thereby effectively preventing debris from entering the outer shell 12.
  • the upper and lower sides of the gap 28 between the inner casing 14 and the outer casing 12 enter between the outer casing 12 and the inner casing 14 to affect the use of the fan.
  • the application provides a portable fan, in which a gap is set between the main casing and the casing, the gap forms the air inlet channel of the fan, the casing blocks the air inlet on the main casing, and the air inlet passes through the main casing and the casing
  • the gap between them is connected to the air intake from the outside, so that the user will not touch the air intake when using the fan in hand to affect the air intake of the fan, and the shell blocks the air intake, and the air intake is hidden in the shell, which can effectively prevent the user from hair or fingers. It extends from the air inlet and is cut by the fan wheel in the fan, which makes the product safer to use and has an overall beautiful appearance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本申请实施例公开的一种便携风扇，例如包括：壳体；以及风机，设置于所述壳体内；其中，所述壳体对应所述风机的出风侧的设置有出风口，所述壳体包括相对设置的壳体上壁与壳体下壁，所述壳体上壁的内侧与所述壳体下壁的内侧形成围绕所述风机的风腔，所述风腔与所述出风口相连通，所述壳体下壁靠近所述出风口处设置有弧形导风部，所述弧形导风部朝向所述出风口方向延伸、且朝向远离所述壳体上壁的一侧弯曲。本申请提供的便携风扇，通过设置弧形导风部使得风机的出风侧处呈广口设计，并将风流引导至出风口，增大了出风角度，在使用户快速降降温的同时给与用户舒适的吹风体验。

Description

便携风扇 技术领域
本申请涉及风扇技术领域，尤其是涉及一种便携风扇。
背景技术
便携风扇的出现解决了大型风扇带来的应用局限性，无论是运动、户外活动还是办公室等使用场景，人们都可以通过携带便携风扇实现随时随地吹风的需求。
然而，现有的便携风扇通常采用轴流风扇组件，由于轴流风扇的出风方向与扇叶的转动轴共线，而这类风扇通常需要较大尺寸的扇叶才能达到较大的出风量，使得便携风扇的整体体积变大，这就不得不牺牲风扇装置的便携性；为了减小便携风扇的体积，市场上出现了使用离心风机的风扇装置，但由于离心风机出风不均匀且出风量较小，无法满足用户通过吹风快速降低体温的需求。此外，便携风扇的出风角度较小，难以给与客户舒适的吹风体验。
本申请内容
针对现有技术中的至少部分问题和缺陷，本申请实施例公开了一种便携风扇，通过设置弧形导风部使得风机的出风侧处呈广口设计，并将风流引导至出风口，增大了出风角度，在使用户快速降降温的同时给与用户舒适的吹风体验，而且不会降低便携性。
本具体地，本申请实施例提供一种便携风扇，例如包括：壳体；以及风机，设置于所述壳体内；其中，所述壳体包括相对设置的壳体上壁与壳体下壁，所述壳体上壁与所述壳体下壁之间设有风腔，所述风机设于所述风腔内，所述壳体的一侧设有与所述风腔连通的出风口，所述壳体下壁靠近所述出风口处设置有弧形导风部，所述弧形导风部朝向远离所述壳体上壁的一侧弯曲。
本实施例提供的便携风扇，通过设置弧形导风部使得风机的出风侧处呈广口设计，并将风流引导至出风口，不仅增大了出风角度，也增大了出风量，以给与客户舒适的吹风体验。
在本申请的一个实施例中，所述壳体还包括设置在所述壳体上壁与所述壳体下壁之间的弧形侧壁及挡风壁，所述弧形侧壁围绕所述风机设置，所述弧形侧壁靠近所述弧形导风部的一端设有蜗舌部，所述挡风壁设于所述弧形侧壁远离所述蜗舌部的一端，所述蜗舌部和所述挡风壁分别设置于所述弧形导风部的两侧。
在本申请的一个实施例中，所述弧形侧壁还包括与所述弧形导风部连接的聚风板，所述聚风板的上端连接于所述蜗舌部，所述聚风板的下端朝向所述挡风壁弯曲。
在本申请的一个实施例中，所述壳体上对应所述出风口处设置有导风格栅，所述弧形导风部位于所述导风格栅和所述风机之间。
在本申请的一个实施例中，所述导风格栅包括横向导风筋，所述横向导风筋上包括靠近所述蜗舌部的第一位置部和靠近所述挡风壁的第二位置部，所述第一位置部朝向所述风机一侧延伸的宽度小于所述第二位置部朝向所述风机一侧延伸的宽度。
在本申请的一个实施例中，所述横向导风筋朝向所述风机一侧延伸的宽度沿所述第二位置部至所述第一位置部的方向逐渐变小。
在本申请的一个实施例中，所述横向导风筋朝向所述风机的一侧形成有刃部，所述刃部沿靠近所述风机的方向逐渐变薄。
在本申请的一个实施例中，所述风腔包括分隔设置的第一风腔和第二风腔，所述第一风腔和所述第二风腔分别与所述出风口连通，所述风机包括设置于所述第一风腔内的第一风机和设置于所述第二风腔内的第二风机。
在本申请的一个实施例中，所述壳体包括设置在所述壳体上壁与所述壳体下壁之间的弧形侧壁及挡风壁，所述弧形侧壁包括围绕所述第一风机的第一弧形侧壁和围绕所述第二风机的第二弧形侧壁，所述挡风壁设置于所述第一风腔与所述第二风腔之间并且同时与第一弧形侧壁、第二弧形侧壁连接。
在本申请的一个实施例中，所述第一弧形侧壁远离所述挡风壁的一端设有第一蜗舌部，第二弧形侧壁远离所述挡风壁的一端设有第二蜗舌部，所述弧形导风部包括第一弧形导风部和第二弧形导风部，所述第一弧形导风部设于第一蜗舌部与所述挡风壁之间，所述第二弧形导风部设于第二蜗舌部与所述挡风壁之间。
在本申请的一个实施例中，所述壳体包括内壳和设置于所述内壳外侧的外壳，所述内壳和所述外壳之间形成有电池仓，所述内壳在对应所述电池仓的位置设置有所述弧形导风部。
在本申请的一个实施例中，所述外壳的外表面设置有防堵结构，多个进风孔设于所述防堵结构上，所述多个进风孔分别连通所述风腔。
由上可知，本申请上述技术特征可以具有如下一个或多个有益效果：本申请中通过设置由弧形导风部、聚风部、横向导风筋形成的出风口结构，以矫正风机出风方向进而增大风量和出风距离。具体地，通过设置弧形导风部使得风 机的出风侧处呈广口设计，并将风流引导至出风口，增大了出风角度，在使用户快速降降温的同时给与用户舒适的吹风体验；设置与弧形导风部相连接的聚风板一方面起到导风的作用，另一方面也能使出风更加集中，以避免出风量的损失；设置中间宽两端窄、且中部向两端弧形延伸的横向导风筋为风流形成跑道，以减少风速的降低，进一步增大风量和吹风距离，还能够使风更均匀的从各出风孔吹出。
附图说明
图1为本申请第一实施例提供的便携风扇的立体结构示意图；
图2为本申请第一实施例提供的便携风扇的拆开状态视图；
图3为本申请第一实施例提供的便携风扇揭开盖板的立体结构示意图；
图4为本申请第一实施例提供的盖板的立体结构示意图；
图5为本申请第一实施例提供的便携风扇的另一拆开状态视图；
图6为本申请第一实施例提供的便携风扇的又一拆开状态视图；
图7为本申请第一实施例提供的便携风扇的再一拆开状态视图；
图8为本申请第一实施例提供的便携风扇的另一视角立体图；
图9是本申请第二实施例的便携风扇的立体结构示意图；
图10是本申请第二实施例的便携风扇的另一视角的结构示意图；
图11是本申请第二实施例的便携风扇的外壳的局部放大结构示意图；
图12是本申请第二实施例的便携风扇的局部截面结构示意图；
图13是本申请第二实施例的便携风扇的局部截面结构的放大示意图；
图14是本申请第二实施例的便携风扇的局部拆分结构示意图；
图15是本申请第二实施例的便携风扇的局部拆分结构示意图；
图16是本申请第二实施例的便携风扇的局部结构装配后的示意图；
图17是本申请第二实施例的便携风扇的前壳体的立体结构示意图；
图18是本申请第二实施例的便携风扇的局部结构装配后的示意图；
图19是本申请第二实施例的便携风扇的局部截面结构示意图；
图20是本申请第二实施例的便携风扇的截面结构示意图；
图21是本申请第三实施例的便携风扇的局部放大结构示意图；
图22是本申请第三实施例的便携风扇的截面结构示意图；
图23是本申请第三实施例的按钮部与弹性支撑件的装配示意图；
图24是本申请第三实施例的按钮部与弹性支撑件的另一视角的结构示意图；
图25是本申请第三实施例的连接杆的立体结构示意图；
图26是本申请第四实施例的便携风扇的拆分结构示意图；
图27是本申请第四实施例的便携风扇的拆分结构示意图；
图28是本申请第四实施例的便携风扇的截面结构示意图；
图29是本申请第四实施例的便携风扇另一视角的截面结构示意图；
图30是本申请第四实施例的便携风扇的立体结构示意图；
图31是本申请第五实施例的便携式风扇处于挂绳收纳后主壳体在收纳状态下的立体结构示意图；
图32是本申请第五实施例的便携式风扇处于挂绳收纳后主壳体在伸出状态下的立体结构示意图；
图33是本申请第五实施例的便携式风扇处于挂绳取出后主壳体在伸出状态下的立体结构示意图；
图34是本申请第五实施例的便携式风扇处于挂绳取出后主壳体在收纳状态下的立体结构示意图；
图35是本申请第五实施例的便携式风扇在一个角度下的分解示意图；
图36是本申请第五实施例的便携式风扇在另一角度下的分解示意图；
图37是本申请第五实施例的风机组件的分解示意图；
图38是本申请第六实施例的便携式风扇的立体示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
需要说明，本申请实施例中所提到的方向用语，例如“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
可以理解的是，当例如层、膜、区域或基底的组件被称作“在“另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为 意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在……上”意指位于目标组件上方或者下方，而不意指必须位于基于重力上方的顶部上。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互结合。
请参阅图1至图6，本申请第一实施例提供的一种便携风扇，包括壳体100以及设置于壳体100内的风机200。举例来说，风机200的数量可例如为一个、两个或者多个。风机200例如为离心风机。壳体100例如包括相对设置的壳体上壁140和壳体下壁150，所述壳体上壁140与所述壳体下壁150之间设置有风腔500，风机200设置于风腔500内。壳体100一侧设有与风腔500连通的出风口105，壳体下壁150靠近出风口105处设置有弧形导风部102，弧形导风部102朝向出风口105方向延伸、且朝向远离壳体上壁140的一侧弯曲。通过设置朝向出风口105延伸的弧形导风部102使得风机200的出风侧处呈广口设计，并将风流引导至出风口105，增大了出风角度，使得便携风扇使用体积较小的风机200也能够实现较大的出风面积。
承上述，壳体100还包括设置在壳体上壁140与壳体下壁150之间的弧形侧壁160及挡风壁101，弧形侧壁160围绕风机200设置，弧形侧壁160靠近弧形导风部102的一端设有蜗舌部104，具体地，弧形侧壁160在壳体100上绕风机200呈弧形延伸，从而与壳体上壁140、壳体下壁150形成风腔500的腔壁。壳体100上贴近弧形侧壁160远离蜗舌部104之处设置有挡风壁101，即挡风壁101设于弧形侧壁160远离蜗舌部104的一端，具体地，挡风壁101与弧形导风部102相连接，挡风壁101的一端朝壳体100内延伸并与弧形侧壁160连接，挡风壁101的另一端朝出风口105延伸，蜗舌部104和挡风壁101分别设置于弧形导风部102的两侧。弧形侧壁160还包括与弧形导风部102连接的聚风板103，聚风板103的上端连接于蜗舌部104，聚风板103的下端朝向挡风壁101弯曲。设置蜗舌部104以对风机200产生的气流进行导向；设置与弧形导风部102相连接的聚风板103一方面起到导风的作用，另一方面也能使出风更加集中，以避免出风量的损失，使得便携风扇出风距离更远，也即是说，用户握持便携风扇时，即使距离出风口105较远的位置也能感受到较大的风量。
进一步地，壳体200上对应出风口105处设置有导风格栅111，弧形导风部102例如位于导风格栅111和风机200之间。其中，导风格栅111包括横向导风筋1111，横向导风筋1111上包括靠近所述蜗舌部104的第一位置部和靠近所述挡风壁101的第二位置部，横向导风筋1111由第二位置部向第一位置部弧形延伸。其中，第一位置部朝向风机200一侧延伸的宽度小于第二位置部朝向风机200一侧延伸的宽度，具体地，横向导风筋1111朝向风机200一侧延伸的宽度沿所述第二位置部至所述第一位置部的方向逐渐变小。如此一来，横向导风筋1111能够匹配出风口105的位置，从而为经过的风流形成跑道，以减少风速的降低，进一步增大风量和吹风距离，还能够使风更均匀的从各导风格栅111吹出。
此外，横向导风筋1111朝向风机200的一侧还例如形成有刃部112，刃部112沿靠近风机200的方向逐渐变薄。在横向导风筋1111上设置刃部112可以进一步减少出风的阻力，气流在经过刃部112时能够顺畅地被引导出去，从而增大风速和风量，出风的方向也能够更加集中。
本申请中的风机200数量例如为两个。参阅图1至图6，本申请以两个风机为例对便携风扇10的具体结构进行详细说明。
风机200例如包括第一风机210和第二风机220。其中，第一风机210的旋转方向与第二风机220的旋转方向相反。风腔500例如包括分隔设置的第一风腔510和第二风腔520，第一风机210设置于所述第一风腔510内，第二风机220设置于第二风腔520内。壳体100包括设置在壳体上壁140与壳体下壁150之间的弧形侧壁160及挡风壁101，弧形侧壁160包括围绕第一风机210的第一弧形侧壁161和围绕第二风机220的第二弧形侧壁162，第一弧形侧壁161、第二弧形侧壁162分别在壳体100上弧形延伸，且第一弧形侧壁161、第二弧形侧壁162靠近壳体100中部的一端连接在一起，挡风壁101设置于第一风腔510与第二风腔520之间并同时与第一弧形侧壁161、第二弧形侧壁162连接，以将第一风腔510与第二风腔520分隔开来，具体地，挡风壁101位于壳体100大致中间的位置，挡风壁101的一端同时与第一弧形侧壁161、第二弧形侧壁162连接(即挡风壁101的一端延伸至第一弧形侧壁161与第二弧形侧壁162在壳体100内侧的连接处)，挡风壁101的另一端朝出风口105延伸。其中，第一弧形侧壁161包括第一蜗舌部1041，第二弧形侧壁162包括第二蜗舌部1042，第一蜗舌部1041设于第一弧形侧壁161远离挡风壁101的一端，第二蜗舌部1042设于第二弧形侧壁162远离挡风壁101的一端，第一蜗舌部1041与第二蜗舌部1042均靠近出风口105设置，且第一蜗舌部1041与第二蜗舌部1042分别位于挡风壁101的两侧。壳体100还在对应出风口105处设置有导风格栅111，导风格栅111上形成有多个出风口114，导风格栅111朝向壳体100内延伸并与挡风壁101相抵接，导风格栅111靠近挡风壁101位置的延伸宽度大于远离挡风壁101位置的延伸宽度。
其中，第一风机210和第二风机220同时转动向导风格栅111出风，以满足大风量的需求。挡风壁101位于第一风机210和第二风机220之间，并抵接于导风格栅111上以避免得第一风机210产生的气流和第二风机220产生的气流相互干扰而影响风量。由于第一风机210的旋转方向与第二风机220的旋转方向相反，气流在导风格栅111的中间位置最大(即挡风壁101处)。导风格栅111上中央位置延伸宽度最大(临近挡风壁101处)，两端位置延伸宽度最小(离挡风壁101越远，延伸宽度越小)。导风格栅111相当于第一风机210和第二风机220风道的延伸，尤其是中间位置延伸宽度较大，能够起到蜗舌的作用，使得处于导风格栅111中间位置的气流能够沿同一方向集中导出，且不被互相干扰抵消。
本申请的上述方案中，由于便携风扇包括壳体100以及设置于壳体100内的第一风机210和第二风机220，第一风机210和第二风机220同时转动向导风格栅111出风，风量更大。第一风机210和第二风机220通过挡风壁101间隔开而互不干扰。导风格栅111靠近挡风壁101位置的延伸宽度大于远离挡风壁101位置的延伸宽度，导风格栅111不仅用于导风，还能够起到蜗舌的作用，使得处于导风格栅111中间位置的气流能够沿同一方向集中导出，且不被互相干扰抵消。此外，便携风扇不再设置手柄等结构，可减少所占用的体积。
优选地，导风格栅111由多条横向导风筋1111和多条纵向导风筋连接而成，横向导风筋1111朝向挡风壁101的一端形成有刃部112，和/或，纵向导风筋朝向挡风壁101的一端形成有刃部112，刃部112沿靠近第一风机210/第二风机220的方向逐渐变薄。本实施方式中，在横向导风筋1111，和/或纵向导风筋上设置刃部112可以进一步减少出风的阻力，气流在经过刃部112时能够顺畅地被引导至出风口114内，从而增大风速和风量。
在本实施例的一个具体实施方式中，横向导风筋1111朝向风机200一侧延伸的宽度从横向导风筋1111的中部(靠近挡风壁101处)向横向导风筋1111的端部逐渐变窄。举例来说，如图4中所示，横向导风筋1111中部的宽度W1大于横向导风筋1111端部的宽度W2。此外，横向导风筋1111的中部邻近第一风机210/第二风机220的一侧向壳体100内部延伸、且向横向导风筋1111的端部弧形延伸。优选地，横向导风筋1111的中部向横向导风筋1111的端部呈流线型延伸以最大程度避免对风量的影响。在其它实施方式中，横向导风筋1111的延伸宽度也可以呈阶梯状或折线状地由横向导风筋1111的中央向两端减少。由于第一风机210与第二风机220同时出风，气流在横向导风筋1111的中部最大(即挡风壁101处)，横向导风筋1111设计成中部宽两端窄、且中部向两端弧形延伸的结构，以匹配第一风机210和第二风机220出风口的位置，从而为经过的风流形成跑道，以减少风速的降低，进一步增大风量和吹风距离，还能够使风更均匀的从各发出风孔吹出。此外，横向导风筋1111向壳体内部延伸能够为将风流向横向导风筋1111中部(即横向导风筋较宽处)引导，以达到调节风向的目的，进而增大风量。需要说明的是，若第一风机210和第二风机220的出风口与当前相反，即气流在横向导风筋1111的端部较大时，则横向导风筋1111需要与之相匹配的设置为中间窄两端宽的结构。
进一步地，导风格栅111朝向挡风壁101的一侧形成有凹槽113，挡风壁101的顶端嵌入凹槽113内。挡风壁101嵌入凹槽113内可使得挡风壁101与导风格栅111之间的连接更加紧密，将第一风机210和第二风机220完全隔离开。在其他实施例中，挡风壁101朝向导风格栅111的一侧形成有凹槽，导风格栅111嵌入该凹槽内，只要使挡风壁101与导风格栅111之间的紧密连接即可。
优选地，导风格栅111的延伸宽度由导风格栅111的中央向两端逐渐减少。在附图所示实施中，导风格栅111的延伸宽度呈流线型平滑地由导风格栅111的中央向两端逐渐减少，最大程度上避免对风量的影响。在其它实施方式中，导风格栅111的延伸宽度也可以呈阶梯状或折线状地由导风格栅111的中央向两端减少。
作为本申请的具体实施方式，壳体100包括盖板110、内壳120和设置于内壳120外侧的外壳130，第一风机210、第二风机220和挡风壁101均设置于内壳120内，导风格栅111和出风口105设置于盖板110上，盖板110盖合于内壳120的敞口上。其中，上述提到的壳体上壁140例如为内壳120的内上壁，壳体下壁150例如为内壳120的内下壁，弧形侧壁160例如为内壳120的内上壁和内下壁之间的内弧形侧壁。内壳120用于形成风腔500和安装第一风机210和第二风机220，外壳130则用于起到保护壳的作用，覆盖于内壳120外侧。同时，内壳120与外壳130之间的空间可以放置其它元器件。为便于维护出风口105的设计，内壳120为敞口结构，并通过盖板110盖合。盖板110与内壳120之间可以采用卡扣配合或通过螺钉连接。
进一步地，便携风扇包括电池，内壳120和外壳130之间形成有用于容置电池的电池仓301，电池406放置于电池仓301内，电池406用于给第一风机210和第二风机220供电。内壳120在对应电池仓301的位置设置有弧形导风部102，弧形导风部102例如位于盖体110上的导风格栅和第一风机210/第二风机220的出风侧之间的位置，弧形导风部102从第一风机210/第二风机220的出风侧朝向导风格栅111的边缘延伸。设置弧形导风部102使得风道的出风口处呈广口设计，并将风流引导至导风格栅111，不仅增大了出风角度，也增大了出风量。举例来说，弧形导风部102例如包括第一弧形导风部1021和第二弧形导风部1022，所述第一弧形导风部1021和所述第二弧形导风部1022分别设置于所述挡风壁101的两侧，具体地，第一弧形导风部1021设于第一蜗舌部1041与挡风壁101之间，第二弧形导风部1022设于第二蜗舌部1042与挡风壁101之间。
进一步地，内壳120的内弧形侧壁(即弧形侧壁160)包括蜗舌部104，蜗舌部104设置于弧形导风部102远离挡风壁101的一侧。内壳120的内弧形侧壁(即弧形侧壁160)还包括与弧形导风部102连接的聚风板103。聚风板103的上端连接蜗舌部104、且所述聚风板103的下端朝向挡风壁101弯曲。聚风板103一方面起到导风的作用，将风流聚集起来，另一方面避免风量损失，使风流都能从导风格栅111送出。举例来说，蜗舌部104包括第一蜗舌部1041和第二蜗舌部1042，第一蜗舌部1041靠近第一风腔510设置，第二蜗舌部1042靠近第二风腔520设置。并且聚风板103包括第一聚风板1031和第二聚风板1032，其中第一聚风板1031的上端连接于第一蜗舌部1041、且第一聚风板1031的下端朝向挡风壁101弯曲，第二聚风板1032的上端连接于第二蜗舌部1042、且第二聚风板1032的下端朝向挡风壁101弯曲。
综上所述，本申请中通过设置由弧形导风部、聚风部、横向导风筋形成的出风口结构，以矫正出风方向进而增大风量和出风距离。具体地，通过设置弧形导风部使得风机的出风侧处呈广口设计，并将风流引导至导风格栅，增大了出风角度，在使用户快速降降温的同时给与用户舒适的吹风体验；设置与弧形导风部相连接的聚风板一方面起到导风 的作用，另一方面也能使出风更加集中，以避免出风量的损失；设置中间宽两端窄、且中部向两端弧形延伸的横向导风筋为风流形成跑道，以减少风速的降低，进一步增大风量和吹风距离，还能够使风更均匀的从各出风孔吹出。
请结合参阅图4至图7，作为本申请的优选实施方式，内壳120包括第一内侧壳121和与第一内侧壳121连接的第二内侧壳122，外壳130包括设置于第一内侧壳121外侧的第一外侧壳131和设置于第二内侧壳122外侧的第二外侧壳132。其中，第一内侧壳121的内上壁例如形成上述提到的壳体上壁140，第二内侧壳122的内下壁例如形成上述提到的壳体下壁150，第一内侧壳121的内弧形侧壁和第二内侧壳12的内弧形侧壁例如组合形成上述提到的弧形侧壁160。第一内侧壳121上设置有对应第一风机210的第一主进风口302和对应第二风机220的第二主进风口303，第一外侧壳131上对应地设置有多个主进风孔304；第二内侧壳122和第二外侧壳132之间形成电池仓301，弧形导风部102设置于第二内侧壳122上并对应电池仓301的位置设置。外部空气经第一外侧壳131上的多个主进风孔304分别流入第一内侧壳121上的第一主进风口302和第二主进风口303，第一风机210和第二风机220对各自风道内的空气加速后形成气流从盖板110上的导风格栅111处吹出。
优选地，第二内侧壳122上设置有对应第一风机210的第一辅进风口305和对应第二风机220的第二辅进风口306，第一辅进风口305和第二辅进风口306均与电池仓301连通，第二内侧壳122或第二外侧壳132上设置有多个辅进风孔307，辅进风孔307连通外界与电池仓301。一部分空气依次从辅进风孔307、电池仓301和第一辅进风口305流向第一风机210，另一部分空气依次从辅进风孔307、电池仓301和第二辅进风口306流向第二风机220，起到辅助进风的作用。且由于空气流经电池仓301，可同时提高电池的散热效率。
第二内侧壳122背向第二外侧壳132的一侧设置有第一安装座308和第二安装座309，第一风机210安装于第一安装座308上，第一安装座308的周向设置有第一辅进风口305，第二风机220安装于第二安装座309上，第二安装座309的周向设置有第二辅进风口306。在附图所示实施例中，第一辅进风口305为环绕第一安装座308的多个弧形孔，第二辅进风口306为环绕第二安装座309的多个弧形孔。第二内侧壳122上还安装电路板401，第一风机210和第二风机220均与电路板401连接，盖板110上设置有开关键402，开关键402与电路板401上的开关相对应，以能够通过按动开关键402来开启和关闭第一风机210和第二风机220。壳体100上还设置有接口403和用于避让电路板401的指示灯404的避让孔。接口403与电池406电连接，用于给电池406充电，指示灯404用于显示电池406的状态。优选地，便携风扇还包括挂绳，挂绳连接于外壳130的两侧。壳体100上不再设置手柄结构，而是可以通过设置穿绳孔405等结构，来配合挂绳进行携带。
请参照图9至图20，本申请第二实施例的便携风扇包括外壳11、内壳14和风机15，内壳14固定于外壳11内，内壳14与外壳11之间形成有进风通道106，进风通道106与内壳14内连通，风机15安装于内壳14内，外壳11的一侧设有防堵结构21，防堵结构21上设有多个进风孔101，多个进风孔101分别连通进风通道106。在本实施例中，风机15为离心风机。
本实施例的便携风扇的外壳11的外表面设置有防堵结构21，使得外壳11的表面高低不平，然后在高低不平的外壳11表面上设置进风孔101，不仅能够避免灰尘等微粒杂物吸附在外壳11上，造成进风孔101堵塞的问题，还能在用户握持便携风扇外壳时，防止手部对进风孔的进风量产生影响；同时，还能够起到导风的作用，进而增大送风速率，最终增大便携风扇的出风量。
进一步地，防堵结构21包括多个凸起部21a，且相邻两凸起部21a之间形成一个凹陷部21b，各进风孔101分别设置于凹陷部21b内。因此外壳11表面被遮挡时，凸起部21a会与遮挡物相接触，而避免进风孔101被遮挡物完全覆盖从而产生堵塞的风险；同时，由于相邻各棱条21a的截面面积朝着外壳11内部方向逐渐增大，故能够使得凹陷部21b的内壁面呈倾斜面，当向进风通道106送风时，凹陷部21b的倾斜面还能起到导风的作用，进而增大送风速率。
在一个实际的应用中，防堵结构21上的多个凸起部21a可以连续设置，并构成呈波浪形的棱条。即，防堵结构21可以由多条紧密排布的呈波浪形的棱条21a共同组成，各棱条21a沿着外壳11的长度方向延伸，各棱条21a的截面面积朝着外壳11内部方向逐渐增大，直至各棱条21a朝向外壳11内部的底面相互连接，且相邻两棱条21a中的其中一棱条21a的波峰与另一棱条21a的波谷对应设置。
进一步地，外壳11包括相对设置的第一外侧壳111和第二外侧壳112，第一外侧壳111与第二外侧壳112固定连接，第一外侧壳111、第二外侧壳112分别固定连接于内壳14的两侧，第一外侧壳111上设有防堵结构21，第二外侧壳112上设有防堵结构21。在本实施例中，第一外侧壳111上的多个进风孔101形成第一进风网口102，第二外侧壳112上的多个进风孔101形成第二进风网口103。
进一步地，第一外侧壳111与第二外侧壳112均为弧形壳体，第一外侧壳111与第二外侧壳112之间通过轴孔过盈配合连接，能够方便拆卸；若第一外侧壳111与第二外侧壳112不需要拆卸，可通过粘胶等方式将第一外侧壳111与第二外侧壳112固定连接。
进一步地，第一外侧壳111朝向内壳14的一侧设有多个连接柱或者连接凸块。第一外侧壳111与内壳14之间通过连接柱或者连接凸块固定连接。而通过连接柱或者连接凸块将第一外侧壳111与内壳14间隔设置，能够保证第一外侧壳111与内壳14之间留有间隙进而形成进风通道106。第二外侧壳112朝向内壳14的一侧同样设有多个连接柱或者连接凸块，第二外侧壳112与内壳14之间同样通过连接柱或者连接凸块固定连接，而通过连接柱或者连接凸块同样能够将第二外侧壳112与内壳14间隔设置，能够保证第二外侧壳112与内壳14之间留有间隙进而形成进风通道106。其中，第一外侧壳111与内壳14之间的进风通道106与第二外侧壳112与内壳14之间的进风通道106可根据实际情况选择是否连通。
进一步地，外壳11还包括相对设置的底板12和盖板13，底板12与盖板13分别沿着风机的径向方向固定连接于内壳14的两侧。其中，第一外侧壳111、第二外侧壳112、底板12和盖板13之间形成容置腔，内壳14位于容置腔内，内壳14与容置腔的腔壁之间形成进风通道106。
进一步地，第一外侧壳111、第二外侧壳112均与底板12间隔设置形成第一进风间隙104，第一外侧壳111、第二外侧壳112均与盖板13间隔设置形成第二进风间隙105。第一进风间隙104、第二进风间隙105均与进风通道106连通。因此，实现了多方位进风，不仅能够增大便携风扇的进风量，进而还增大了便携风扇的出风量。同时，通过在第一外侧壳111、第二外侧壳112分别与底板12之间设有第一进风间隙104，第一外侧壳111、第二外侧壳112分别与盖板13之间设有第二进风间隙105，能够实现隐藏式进风，在增大进风量的同时保证便携风扇的美观。
进一步地，第一进风间隙104绕着第一外侧壳111与第二外侧壳112端面设置，并形成一圈整条的第一进风间隙104，第二进风间隙105绕着第一外侧壳111与第二外侧壳112的另一端面设置，并形成一圈整条的第二进风间隙105。因此，能够进一步增大进风量。但并不以此为限，例如第一外侧壳111与第二外侧壳112与底板12间隔设置形成多个不连续的第一进风间隙104，第一外侧壳111与第二外侧壳112与盖板13间隔设置形成多个不连续的第二进风间隙105，此时，进风量相对前者，进风量减少了，但是有效地防止水、灰尘或者毛发进入外壳11内部。
进一步地，内壳14包括相对设置的第一内侧壳141和第二内侧壳142，风机15安装于第一内侧壳141与第二内侧壳142之间，第一内侧壳141设有贯穿第一内侧壳141的第一进风窗口107，进风通道106连通第一进风窗口107；第二内侧壳142设有贯穿第二内侧壳142的第二进风窗口201，进风通道106连通第二进风窗口201。
进一步地，第二内侧壳142设有电池仓108，电池仓108内固定有电池16，电池16与电池仓108的腔壁之间设有第三进风间隙109，进风通道106通过第三进风间隙109连通第二进风窗口201。在本实施例中，当电池16安装于第二内侧壳142时，若影响进风通道106内的风进入第一内侧壳141与第二内侧壳142之间，可通过在电池16与电池仓108的腔壁之间间隔设置形成第三进风间隙109，再通过第三进风间隙109将进风通道106连通至第一内侧壳141与第二内侧壳142之间，保证第一内侧壳141与第二内侧壳142之间的风机15能够吸收到更多的进风量。
进一步地，第一内侧壳141与第二内侧壳142均呈弧形，第一外侧壳111与第一内侧壳141固定连接，第二外侧壳112与第二内侧壳142固定连接。
进一步地，第二内侧壳142包括安装框1421和隔板1422，隔板1422固定连接于安装框1421内，风机15设于隔板1422与第一内侧壳141之间，隔板1422远离风机15的一侧与安装框1421形成电池仓108，在本实施例中，隔板1422设于安装框1421内并形成电池仓108，电池16安装于电池仓108内，风机15设于隔板1422与第一内侧壳141之间，此时，能够减少便携风扇的总长度，提高空间利用率；并且，通过隔板1422上设有贯穿隔板1422的第二进风窗口201，第三进风间隙109与第二进风窗口201连通，能够保证第二进风网口103顺利送风进入第一内侧壳141与第二内侧壳142之间。
进一步地，内壳14设有出风口202，盖板13设有导风格栅131，导风格栅131与出风口202对应设置，第二内侧壳142远离底板12的一侧与导风格栅131之间设有出风间隙203，出风间隙203连通出风口202。在本实施例中，由于第二内侧壳142远离底板12的一侧与导风格栅131之间设有出风间隙203，因此，相对第二内侧壳142靠近导风格栅131的整个端面抵靠导风格栅131，能够增大出风口202，实现广口出风口202设计，增大了出风量。
进一步地，隔板1422远离电池仓108的一侧固定有蜗壳17(即弧形侧壁)，风机15安装于蜗壳17内，蜗壳17靠近出风口202的出风端面与导风格栅131固定连接，隔板1422与导风格栅131间隔设置。在本实施例中，隔板1422包括直板部142a和与直板部142a固定连接的弧形导风部142b，直板部142a与弧形导风部142b均与安装框1421固定连接，弧形导风部142b与导风格栅131间隔设置。其中，第二进风窗口201设于直板部142a，弧形导风部142b向着远离第一内侧壳141的方向弯曲后形成电池仓108的其中一个腔壁。
进一步地，蜗壳17包括相对设置的第一蜗壳主体部171和第二蜗壳主体部172、相对设置的第一蜗舌部173和第二蜗舌部174。第一蜗壳主体部171的一侧与第一内侧壳141固定连接，第一蜗壳主体部171的另一侧与第二蜗壳主体部172固定连接形成风腔204，风机15安装于风腔204内，第二蜗壳主体部172与直板部142a固定连接。第一蜗舌部173与第一内侧壳141固定连接，且第一蜗舌部173与第一蜗壳主体部171的端部固定连接。第一蜗舌部173与第二蜗舌部174固定连接形成与风腔204连通的导风通道。第二蜗舌部174与弧形导风部142b固定连接并位于弧形导风部142b与导风格栅131之间。在本实施例中，导风通道的出风口202即内壳14的出风口202，导风通道能够避免部分气体在风腔204内循环流动；同时，由于弧形导风部142b向着远离第一内侧壳141的方向弯曲，当第二蜗舌部174固定连接在弧形导风部142b朝向导风格栅131的侧面上方时，能够增大出风口202，实现了广口出风口202设计，还增大了出风量。
进一步地，隔板1422远离电池仓108的一侧设有两个蜗壳17，便携风扇包括两个风机15，两个风机15分别安装于蜗壳17内，两个风机15的旋转方向相反。在本实施例中，两个蜗壳17的出风口202紧邻设置，保证出风便携风扇的出风均匀。
进一步地，便携风扇还包括按键组件18和电路板，电路板安装于外壳11内，按键组件18包括按钮部、连接部和响应元件，按钮部安装于盖板13远离容置腔的一侧，盖板13的另一侧设有支撑座，连接部安装于支撑座内，连接部的一端与按钮部连接，连接部的另一端与响应元件连接，响应元件与电路板电性连接。
进一步地，便携风扇还包括挂绳19，挂绳19与外壳11可拆卸连接。在本实施例中，便携风扇可以通过挂绳19悬挂在指定位置进行使用，扩展了便携风扇的使用场景，同时，由于挂绳19可以从外壳11上拆卸下来，使得便携风扇收纳更方便。
请参照图21至图25，本申请第三实施例的便携风扇包括外壳10和按键组件，按键组件包括按钮部21、弹性支撑件22、连接杆23和开关元件24，按钮部21安装在外壳10上，弹性支撑件22固定连接于外壳10内并弹性支撑按钮部21，开关元件24的触发方向与按钮部21的位移方向错位设置，连接杆23联动连接于按钮部21与开关元件24之间，连接杆23响应于按钮部21的位移并触发开关元件24。在本实施例中，开关元件24的触发方向与按钮部21的位移方向相互垂直。其中，弹性支撑件22为弹性较好的塑料制成，例如为热塑性弹性体、聚乙烯塑料体等。
本申请的便携风扇通过弹性支撑件22固定连接于外壳10内并弹性支撑起按钮部21，能够避免按钮部21受到按压力后发生过度位移，进而造成按钮部21完全移动至外壳10内部后不复位，最终导致整个按键组件发生变形的问题，故保证了便携风扇的质量。同时，便携风扇即使在开关元件24的触发方向与按钮部21的位移方向错位设置且开关元件24不能弹性支撑按钮部21的情况下，弹性支撑件22也能通过自身的弹性伸缩使得按钮部21精准的自动复位。不仅解决了按钮部21因频繁受按压力而难以自动复位的问题，还解决了用户按键手感体验差的问题。其次，在按钮部21与开关元件24之间设置连接杆23，通过连接杆23响应于按钮部21的位移并触发开关元件24，能够保证按钮部21与开关元件24之间的信号传递，使得开关元件24能够即使反馈按钮部21传来的信号。
进一步地，外壳10设有贯穿外壳10的安装孔，按钮部21穿过安装孔与弹性支撑件22固定连接，弹性支撑件22的长度大于安装孔的直径。在本实施例中，安装孔的形状与按钮部21的形状相同，且按钮部21的体积等于或者略小于安装孔的容积，进而使得按钮部21沿着安装孔的轴线上下移动时，还能够保证按钮部21不会在安装孔内发生晃动。其次，由于弹性支撑件22的长度大于安装孔的直径，故当按钮部21穿过安装孔与外壳10内部的弹性支撑件22固定连接时，弹性支撑件22能够限制按钮部21向外壳10外发生位移的距离，保证按钮部21不会完全脱离外壳10。
进一步地，弹性支撑件22包括第一连接部221、第二连接部222和限位部223，第一连接部221与第二连接部222分别固定连接于限位部223的两侧，第一连接部221与第二连接部222通过轴孔配合固定连接于外壳10的内侧壁，按钮部21与限位部223固定连接，按钮部21包括连接轴211，连接轴211穿过限位部223并与连接杆23联动连接。在本实施例中，第一连接部221设有第一固定孔103，第二连接部222设有第二固定孔104，外壳10的内侧壁设有第一固定轴和第二固定轴，第一固定轴与第一固定孔103可采用过盈连接，第二固定轴与第二固定孔104也可采用过盈连接，能够方便更换或者维修弹性支撑件22；或者在第一固定轴与第一固定孔103之间可通过粘胶直接固定连接，第二固定轴与第二固定孔104之间也可通过粘胶直接固定连接，能够保证弹性支撑件22与外壳10之间的牢固性。
进一步地，第一连接部221的一端与限位部223固定连接，第一连接部221的另一端绕着限位部223的周向弯曲延伸，其中，第一固定孔103设于第一连接部221远离限位部223的端部。第二连接部222的一端与限位部223固定连接，第二连接部222的另一端向着靠近第一连接部221的方向弯曲延伸，其中，第二固定孔104设于第二连接部222靠近第一连接部221的一端部。弹性支撑件22还包括加强筋224，第一连接部221与第二连接部222通过加强筋224固定连接成一体结构。在本实施例中，第一连接部221、第二连接部222与加强筋224固定接成一体结构后能够保证第一连接部221与第二连接部222受力均匀，避免第一连接部221与第二连接部222其中之一因受力过大而导致弹性支撑件22过度变形，造成无法支撑按钮部21。
进一步地，第一固定孔103、第二固定孔104与限位部223的中心之间的连线共同构成一个三角形区域，故，第一固定孔103、第二固定孔104与限位部223的中心分别为该三角形的三个顶点。此时，当限位部223受到按钮部21传来的按压力作用后，会将该按压力分散传递到第一连接部221靠近第一固定孔103的端部以及第二连接部222靠近第二固定孔104的端部，然后利用第一连接部221与第二连接部222的回弹力对限位部223起到一个回弹作用，再加上限位部223本身的回弹性，最终使得按钮部21受到限位部223的弹性回弹而精准复位。在本实施例中，优选地，第一固定孔103、第二固定孔104与限位部223的中心之间的连线共同构成一个等边三角形区域，而第一连接部221靠近第一固定孔103的端部与加强筋224固定连接，第二连接部222靠近第二固定孔104的端部同样与加强筋224固定连接，第一连接部221与第二连接部222还分别与限位部223的两侧固定连接。因此，能够保证第一连接部221、第二连接部222、加强筋224与限位部223之间形成一个稳定的受力平面。
进一步地，按钮部21为圆柱状，限位部223呈圆环状并绕着按钮部21的周向设置，能够保证限位部223均匀得支撑起按钮部21的各个部位。其中，限位部223的直径大于安装孔的直径，因此，按钮部21与限位部223固定连接后，能够限制按钮部21向着外壳10外发生位移的距离，保证按钮部21不会完全脱离外壳10。
进一步地，按钮部21与外壳10上设有的出风口101同侧设置，不仅能够方便用户使用，还能够提升便携风扇的美观。
进一步地，连接杆23包括第一传动部231、第二传动部232和第三传动部233，第二传动部232联动连接于按钮部21与第一传动部231之间，第三传动部233联动连接于第一传动部231与开关元件24之间。在本实施例中，第一传动部231、第二传动部232与第三传动部233可为一体结构。其中，当第二传动部232联动连接于按钮部21与第一传动部231之间，第三传动部233联动连接于第一传动部231与开关元件24之间后，能够通过改变第一传动部231、第二传动部232与第三传动部233之间的延伸方向，将按钮部21对连接杆23产生的垂直向下的作用力改变成例如为水平方向的驱动力。因此，开关元件24的位置不仅限于与按钮部21正对设置，还能够根据外壳10内部的实际空间情况选择开关元件24的具体设置位置，最终实现提升便携风扇的空间利用率。
进一步地，外壳10内还固定有风机12、导风壳13、电路板14和用于安装连接杆23的安装座11。具体地，风机12安装于导风壳13内，导风壳13与外壳10的内壁固定连接，电路板14固定于导风壳13的一侧，开关元件24电性连接于电路板14朝向导风壳13的一侧，安装座11固定连接于导风壳13靠近电路板14的一侧。在本实施例中，风机12为离心风机12，故便携风扇的出风口101沿着离心风机12的径向方向设置。
进一步地，第一传动部231活动连接于安装座11内。其中，第一传动部231活动连接于安装座11内能够保证连接杆23在随着按钮部21的联动过程中，不会偏离特定位置，即保证按键组件的可靠性，也不会干涉连接杆23的联动性。在本实施例中，第一传动部231的两侧分别固定有第一转动轴2311和第二转动轴2312，安装座11上设有与第一转动轴2311和第二转动轴2312配合的第一轴孔102以及第二轴孔，第一转动轴2311转动连接于第一轴孔102内，第二转动轴2312转动连接于第二轴孔内。
进一步地，第二传动部232与第三传动部233之间形成夹角，夹角大于0°小于180°。在本实施例中，夹角大于90°小于180°。
进一步地，第二传动部232自导风壳13靠近按钮部21的一侧倾斜延伸至导风壳13靠近电路板14的一侧，第一传动部231、第三传动部233均位于导风壳13靠近电路板14的一侧。
进一步地，开关元件24包括基座241和感应部242，基座241与电路板14固定连接，感应部242安装于基座241上并向着导风壳13凸出，第三传动部233自第一传动部231的端部延伸至与开关元件24的感应部242相接触并位于感应部242与导风壳13之间。在本实施例中，开关元件24例如为电子按键，用于处理按钮部21传来的信号。
关于便携风扇的其他结构请参照现有技术，此处不再赘述。
请参照图26至图30，本申请第五实施例的便携风扇包括导风壳11、第一风机12、第二风机13、电池14和电路板15，导风壳11内设有风腔101和安装腔102，风腔101与安装腔102沿着导风壳11的高度方向间隔设置，第一风机12与第二风机13安装于风腔101内并沿着导风壳11的长度方向间隔设置，第一风机12沿着第二风机13的径向方向设置在第二风机13的一侧，电池14与电路板15分别位于安装腔102内，安装腔102收容电池14的部分可定义为电池腔，电池14沿着第一风机12的轴向方向与第一风机12对应设置，电路板15沿着第二风机13的轴向方向与第二风机13对应设置，导风壳11设有连通风腔101的出风口103和进风口104，出风口103沿着导风壳11的宽度方向设置，进风口104沿着导风壳11的高度方向设置。在本实施例中，第一风机12与第二风机13均为离心风机，离心风机的径向方向即导风壳11的宽度方向，离心风机的轴向方向即导风壳11的高度方向，两个离心风机的总长度方向即导风壳11的长度方向，且两个离心风机的旋转方向相反。
本申请的便携风扇的风腔101与安装腔102沿着导风壳11的高度方向间隔设置，且第一风机12与第二风机13安装于风腔101内并沿着导风壳11的长度方向水平间隔设置；电池14与电路板15分别安装于安装腔102内，电池14沿着第一风机12的轴向方向与第一风机12对应设置，电路板15沿着第二风机13的轴向方向与第二风机13对应设置。因此，风腔101的长宽就是整个便携风扇的长宽，而风腔101的高度加上电路板15或者电池14的厚度即是整个便携风扇高度，故不仅减小了便携风扇的体积，优化了便携风扇的内部空间；还能使得便携风扇的风腔101可以做得更大。同时，出风口103沿着导风壳11的宽度方向设置，进风口104沿着导风壳11的高度方向设置，改变了便携风扇的外观形式，提升了便携风扇的美感。
进一步地，导风壳11包括相对设置的前壳部111与后壳部113、以及连接在前壳部111与后壳部113之间的马达支架112，前壳部111与马达支架112之间固定连接形成风腔101，马达支架112与后壳部113之间固定连接形成安装腔102。
进一步地，导风壳11内设有第一蜗壳部1111、第一蜗舌部1112、第二蜗壳部1113和第二蜗舌部1114，第一风机12安装于第一蜗壳部1111内，第一蜗舌部1112与第一蜗壳部1111固定连接，第一蜗舌部1112设有一个出风口103；第二风机13安装于第二蜗壳部1113内，第二蜗舌部1114与第二蜗壳部1113固定连接，第二蜗舌部1114设有一个出风口103；两出风口103朝向同一方向出风。在本实施例中，第一蜗壳部1111与第一蜗舌部1112固定连接在前壳部111与马达支架112之间，第二蜗壳部1113与第二蜗舌部1114固定连接在前壳部111与马达支架112之间，且第一蜗壳部1111、第一蜗舌部1112、第二蜗壳部1113以及第二蜗舌部1114均位于风腔101内。
进一步地，第一风机12包括第一扇叶和第一马达，第一扇叶与第一马达的转轴固定连接，第二风机13包括第二扇叶和第二马达，第二扇叶与第二马达的转轴固定连接，第一马达、第二马达均间隔固定在马达支架112靠近前壳部111的一侧并位于第一蜗壳部1111和第二蜗壳部1113内。
进一步地，安装腔102内设有隔板1131，隔板1131将安装腔102分割为第一容置槽105与第二容置槽106，电池14固定连接于第一容置槽105内，电路板15固定连接于第二容置槽106，电池14与电路板15电性连接。
进一步地，导风壳11设有两个进风口104，两个进风口104均设于前壳部111上，两个进风口104分别连通第一蜗壳部1111与第二蜗壳部1113。
进一步地，便携风扇还包括前侧板16,前侧板16与导风壳11固定连接，前侧板16设有出风格栅161，出风格栅161与出风口103对应设置。在本实施例中，导风壳11的第一蜗舌部1112、第二蜗舌部1114的出风端面与出风格栅161的格栅条固定连接。
进一步地，第二蜗舌部1114远离第一蜗舌部1112的一侧与前壳部111的侧边间隔设置形成安装按键组件的安装空间107，按键组件包括按钮部17和响应元件，按钮部17穿过前侧板16并活动安装于安装空间107内，响应元件与按钮部17联动连接并位于安装空间107内，响应元件与电路板15电性连接。
进一步地，如图27和图29结合所示，导风壳11相对前侧板16的一侧还设有连接孔，便携风扇还包括用于连接外部电源的连接器18，连接器18安装于连接孔内并与电路板15电性连接。在本实施例中，导风壳11包括与前侧板16相对设置的底板114，连接孔设置在底板114上并贯穿底板114，进而使得连接器18与电路板15电性连接后从连接孔内露出。具体地，连接器18位于第一蜗壳部1111与第二蜗壳部1113之间的空隙108处，故能够提升便携风扇的空间利用率。
进一步地，便携风扇还包括相对设置的第一外壳19与第二外壳21，导风壳11固定连接于第一外壳19与第二外壳21之间，第一外壳19上设有多个贯穿第一外壳19的通风孔，通风孔连通进风口104。在本实施例中，第一外壳19与前壳部111固定连接，第二外壳21与后壳部113固定连接，底板114和前侧板16设于第一外壳19与第二外壳21之间。
请同时参考图31至图34，本申请第五实施例提供一种便携式风扇10，包括外壳12、内壳14、设于内壳14内的风机16及连接于内壳14的挂绳，内壳14上对应风机16设有进风口26和出风口24。外壳12环绕于内壳14外，以遮挡进风口26，使得产品整体美观度提升。内壳14与外壳12之间具有与进风口26和外界连通的间隙28，间隙28形成风扇的进风通道，风机16运转从进风口26吸入空气产生风继而从出风口24吹出。
应当指出的是，本实施例中，便携式风扇10设有挂绳，为可手持可挂脖使用的便携式风扇，在其他实施例中，也可以不设置挂绳，便携式风扇10仅为手持使用。
申请的便携式风扇10可转换成多种形态，在不同场景下使用。具体地，该便携式风扇10整体呈盒体状，在其他实施例中，便携式风扇10也可以设计成其他形状。本实施例中，外壳12为上下两端开口结构，以露出内壳14的顶面和底面，外壳12内形成有收容腔20。内壳14可相对外壳12在收纳位置和伸出位置之间滑动，其中，在收纳位置时，内壳14收容于收容腔20内，此时外壳12遮挡住进风口26；在伸出位置时，内壳14至少部分伸出于收容腔20外。在其他实施例中，外壳12也可以为顶端开口、下端封闭的结构，从而只露出内壳14的顶面，从而露出内壳14的出风口24。
在所示的实施例中，内壳14的侧面上设有供挂绳18收纳的收容槽22，例如挂绳18缠绕收纳于收容槽22内，使得当挂绳18不需要使用，例如便携式风扇10需要手持使用时，可拉出内壳14将挂绳18缠绕收纳于收容槽22内，避免影响用户手持使用。优选地，收容槽22沿内壳14的周向环设，便于用户操作。
请进一步参考图35和图36，出风口24设置在内壳14的上端端盖15对应风机16的位置，进风口26设置在内壳14的侧面上对应风机16的位置。在所示的实施例中，进风口26设置在内壳14的前后两侧面上，保证进风量充足。间隙28形成于内壳14的外表面与外壳12的内表面之间，且进风口26与间隙28连通，外壳12的上下两端开口结构使得间隙28与外界连通，使得进风口26可从间隙28的上下两侧同时吸气，保证供气充足，进而保证风机16的吸气需求，具体地，外壳12的内表面与内壳14的外表面之间的距离为0.5至3mm，即间隙28的尺寸为0.5至3mm，优选为1.5mm,该距离范围尺寸可以在保证满足扇轮32进风量的同时，防止杂物从外壳12的上下两端掉入间隙28内，也能避免外壳12的侧壁封堵到进风口26，对进风造成影响。
进一步地，风机16包括蜗壳30和两个扇轮32，扇轮32例如为离心扇轮，采用两个离心扇轮使得风扇可大风量出风。具体地，蜗壳30包括沿内壳14长度方向并列一体设置的第一蜗壳部34和第二蜗壳部36，两个扇轮32分别安装于第一蜗壳部34和第二蜗壳部36内。第一蜗壳部34和第二蜗壳部36朝向出风口24的一侧，也即上端分别设有第一出风部38和第二出风部40，第一蜗壳部34和第二蜗壳部36上对应进风口26分别设有第一进风部42和第二进风部44，便于扇轮32进风。
进一步地，如图37所示，蜗壳30包括相互对接的前壳30a和后壳30b，二者可以采用卡扣等方式可拆卸连接，便于拆装。
优选地，收容槽22延伸经过进风口26，即收容槽22延伸的路径部分与进风口26所在内壳14的侧壁区域重叠，可节省内壳14的整体尺寸，使得产品可以做的更小巧。进一步地，收容槽22的底部对应进风口26的区域设有若干开孔45，使得挂绳从收容槽取出后开孔45可以进风，降低收容槽22的设置对扇轮32进风的影响。
在所示的实施例中，内壳14内还设有电池46和电路板48，电池46和电路板48与蜗壳30并列间隔设置在内壳14内。内壳14的上端端盖15设有开关50，电池46、开关50及风机16分别与电路板48电连接，开关50用于控制风机16的启停。在另一些实施例中，开关50在控制启停的基础上也可以增加风速调节等功能，或者再另外设置功能按键来实现控制。
本实施例中，外壳12与内壳14之间设有滑动结构，使得内壳14可通过滑动结构相对外壳12伸缩活动。具体而言，滑动结构包括滑动导轨52和滑动导槽54，滑动导轨52与滑动导槽54可滑动配合。滑动导轨52设于外壳12的内壁面和内壳14的外壁面其中之一，滑动导槽54设于外壳12的内壁面和内壳14的外壁面其中另一。在所示的实施例中，滑动导轨52设于内壳14的外壁面上，且滑动导轨52设置多个，并沿内壳14的周向间隔排布；对应地，滑动导槽54设于外壳12的内壁面上，滑动导槽54的数量及位置与滑动导轨52对应。
优选地，每一滑动导槽54由平行间隔设置的两根筋条形成，两根筋条靠近外壳12顶面的一端相互连接，使得滑动导槽54的上端设置成封闭结构，该封闭结构可对内壳14进行上滑限位，防止内壳14在滑动过程中脱离出外壳12。
优选地，还可在滑动导轨52与滑动导槽54之间设置阻尼结构，增加内壳14相对外壳12伸缩滑动的摩擦阻力，防止内壳14在没有外力作用的情况下相对外壳12滑动，并使得内壳14可相对外壳12伸缩滑动至任意位置并稳固停留在该位置。
在所示的实施例中，内壳14的侧面长度方向的两端靠近内壳14上端的位置分别设有凸块56，挂绳18的两端分别连接于两个凸块56，外壳12的上端设有与凸块56对应的限位槽58，当内壳14滑动至收纳位置时，凸块56抵接于限位槽58内。
优选地，凸块56可以卡扣等方式卡固于限位槽58内，以对内壳14进行下滑限位，同时可使得内壳14与外壳12连接稳固。
当内壳14在收纳位置时，内壳14收容于收容腔20内，外壳12在遮挡住进风口26的同时也遮住收容槽22，使得产品外形美观；在伸出位置时，内壳14至少部分伸出于收容腔20并露出收容槽22，方便用户取出或收纳挂绳18。
通过凸块56设置于内壳14的相对两侧面上并靠近顶面的位置，将开关50和出风口24均设于内壳14的顶面上，如此设计使得挂绳18使用时，可刚好挂在人体颈部朝人体脸部吹风，且方便操作开关50。
在如图38所示的第六实施例中，该便携式风扇10的结构与前述第五实施例相同，区别在于，本实施例中，外壳12固定连接在内壳14的外部，外壳12环绕内壳14的四个表面(即前后左右四个表面)上均设有多个通孔60，多个通孔60排布的区域分别覆盖外壳12的每个表面的大部分面积，即通孔60所在区域除了覆盖到内壳14表面进风口26部分的区域外，还覆盖到了内壳14表面的其他区域，通孔60区域优选为覆盖外壳12的整个表面，外壳12与内壳14之间的间隙28可以通过通孔60与外界连通，使得内壳14内的扇轮32可经进风口26通过间隙28经通孔60与外界连通进风，且通孔60排布的区域分别覆盖外壳12的每个表面的大部分面积，使得用户手拿便携风扇的外壳12使用时，即使手部接触封堵到部分通孔60，还可以通过其他通孔60进风，使得用户手拿便携风扇使用时，不会影响风扇进风，方便用户使用。该实施例中，外壳12的上下两端缘可不与内壳14之间间隔，即外壳14的上下两端缘可分别与内壳14的上下两端缘连接，从而有效防止杂物从外壳12与内壳14之间的间隙28的上下两侧进入到外壳12与内壳14之间影响风扇的使用。
综上所述，申请提供一种便携式风扇，在主壳体与外壳之间设置间隙，间隙形成风扇的进风通道，外壳遮挡住主壳体上的进风口，进风口通过主壳体与外壳之间的间隙与外界连通进风，使得用户手拿风扇使用时不会接触到进风口以影响风扇进风，且外壳遮挡进风口，将进风口隐藏于外壳内，能够有效防止用户头发或手指从进风口伸入被风扇内的扇轮割伤，使得产品使用更安全且外形整体美观。
可以理解的是，前述各个实施例仅为本申请的示例性说明，在技术特征不冲突、结构不矛盾、不违背本申请的发明目的前提下，各个实施例的技术方案可以任意组合、搭配使用。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (12)

  1. 一种便携风扇，其特征在于，包括：壳体；以及风机，设置于所述壳体内；其中，所述壳体包括相对设置的壳体上壁与壳体下壁，所述壳体上壁与所述壳体下壁之间设有风腔，所述风机设于所述风腔内，所述壳体的一侧设有与所述风腔连通的出风口，所述壳体下壁靠近所述出风口处设置有弧形导风部，所述弧形导风部朝向远离所述壳体上壁的一侧弯曲。
  2. 如权利要求1所述的便携风扇，其特征在于，所述壳体还包括设置在所述壳体上壁与所述壳体下壁之间的弧形侧壁及挡风壁，所述弧形侧壁围绕所述风机设置，所述弧形侧壁靠近所述弧形导风部的一端设有蜗舌部，所述挡风壁设于所述弧形侧壁远离所述蜗舌部的一端，所述蜗舌部和所述挡风壁分别设置于所述弧形导风部的两侧。
  3. 如权利要求2所述的便携风扇，其特征在于，所述弧形侧壁还包括与所述弧形导风部连接的聚风板，所述聚风板的上端连接于所述蜗舌部，所述聚风板的下端朝向所述挡风壁弯曲。
  4. 如权利要求2所述的便携风扇，其特征在于，所述壳体上对应所述出风口处设置有导风格栅，所述弧形导风部位于所述导风格栅和所述风机之间。
  5. 如权利要求4所述的便携风扇，其特征在于，所述导风格栅包括横向导风筋，所述横向导风筋上包括靠近所述蜗舌部的第一位置部和靠近所述挡风壁的第二位置部，所述第一位置部朝向所述风机一侧延伸的宽度小于所述第二位置部朝向所述风机一侧延伸的宽度。
  6. 如权利要求5所述的便携风扇，其特征在于，所述横向导风筋朝向所述风机一侧延伸的宽度沿所述第二位置部至所述第一位置部的方向逐渐变小。
  7. 如权利要求5所述的便携风扇，其特征在于，所述横向导风筋朝向所述风机的一侧形成有刃部，所述刃部沿靠近所述风机的方向逐渐变薄。
  8. 如权利要求1所述的便携风扇，其特征在于，所述风腔包括分隔设置的第一风腔和第二风腔，所述第一风腔和所述第二风腔分别与所述出风口连通，所述风机包括设置于所述第一风腔内的第一风机和设置于所述第二风腔内的第二风机。
  9. 如权利要求8所述的便携风扇，其特征在于，所述壳体包括设置在所述壳体上壁与所述壳体下壁之间的弧形侧壁及挡风壁，所述弧形侧壁包括围绕所述第一风机的第一弧形侧壁和围绕所述第二风机的第二弧形侧壁，所述挡风壁设置于所述第一风腔与所述第二风腔之间并且同时与第一弧形侧壁、第二弧形侧壁连接。
  10. 如权利要求9所述的便携风扇，其特征在于，所述第一弧形侧壁远离所述挡风壁的一端设有第一蜗舌部，第二弧形侧壁远离所述挡风壁的一端设有第二蜗舌部，所述弧形导风部包括第一弧形导风部和第二弧形导风部，所述第一弧形导风部设于第一蜗舌部与所述挡风壁之间，所述第二弧形导风部设于第二蜗舌部与所述挡风壁之间。
  11. 如权利要求1所述的便携风扇，其特征在于，所述壳体包括内壳和设置于所述内壳外侧的外壳，所述内壳和所述外壳之间形成有电池仓，所述内壳在对应所述电池仓的位置设置有所述弧形导风部。
  12. 如权利要求11所述的便携风扇，其特征在于，所述外壳的外表面设置有防堵结构，多个进风孔设于所述防堵结构上，所述多个进风孔分别连通所述风腔。
PCT/CN2022/118187 2021-09-30 2022-09-09 便携风扇 WO2023051220A1 (zh)

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