WO2022083519A1 - 脖戴风扇 - Google Patents

脖戴风扇 Download PDF

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Publication number
WO2022083519A1
WO2022083519A1 PCT/CN2021/124237 CN2021124237W WO2022083519A1 WO 2022083519 A1 WO2022083519 A1 WO 2022083519A1 CN 2021124237 W CN2021124237 W CN 2021124237W WO 2022083519 A1 WO2022083519 A1 WO 2022083519A1
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WO
WIPO (PCT)
Prior art keywords
neck
air outlet
bracket
fan
housing
Prior art date
Application number
PCT/CN2021/124237
Other languages
English (en)
French (fr)
Inventor
刘凯
陈海东
赖友
李伟平
杨广
伍勋焕
李彤
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
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 WO2022083519A1 publication Critical patent/WO2022083519A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/16Combinations of two or more pumps ; Producing two or more separate gas flows
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers

Definitions

  • the invention relates to the technical field of fans, in particular to a neck-mounted fan.
  • a neck-mounted fan usually includes a neck-mounted support worn on the neck of the human body and a fan assembly connected with the neck-mounted support.
  • the neck brace is formed with an air duct and an air outlet.
  • the operation of the fan assembly generates a forced air flow, which flows along the air duct and is finally blown towards the user's neck from the air outlet.
  • most of the wind from the air outlet is blown to the neck of the human body, and little or no of it is blown to other parts of the human body, such as the face or back.
  • the neck-mounted bracket of the existing neck-mounted fan usually has two bracket parts, which form a U shape suitable for being worn on the neck.
  • the neck-mounted fan occupies a large space, which is inconvenient for users to carry or store.
  • the present invention provides a neck-mounted fan that can solve at least one of the above-mentioned defects.
  • an embodiment of the present invention provides a neck-mounted fan, including a first air outlet and a second air outlet.
  • the first air outlet is provided with a first accommodating cavity, a first air inlet and a first air outlet that are in fluid communication with the first accommodating cavity, and the first air outlet is opened on the neck of the neck-mounted fan.
  • a first fan is arranged in the first accommodating cavity, and the wind generated by the first fan sucking in air from the first air inlet is blown out through the first air outlet.
  • the second air outlet includes a casing provided with a second accommodating cavity, and a second fan accommodated in the second accommodating cavity.
  • the casing is provided with a second air outlet in fluid communication with the second receiving cavity, the casing is mounted on the side wall of the neck support and can be rotated relative to the neck support to adjust the second air outlet The location of the air outlet.
  • a mounting seat is provided on the side wall of the neck support, and the shell is mounted on the mounting seat and can rotate relative to the mounting seat.
  • the mounting seat includes a first mounting surface facing the housing
  • the housing includes a second mounting surface facing the mounting seat
  • the first mounting surface and the second mounting surface A rotating positioning structure is arranged between the surfaces.
  • the rotational positioning structure includes a plurality of positioning grooves and at least one elastically loaded positioning protrusion, and the plurality of positioning grooves are arranged on one of the first installation surface and the second installation surface and extend along the The rotation direction of the housing is arranged at intervals, the at least one elastically loaded positioning protrusion is arranged on the other of the first mounting surface and the second mounting surface, and the at least one elastically loaded positioning protrusion is used for connecting with the Several positioning grooves are selectively matched to selectively position the second air outlet at several different circumferential positions in the rotation direction of the housing.
  • a groove is provided on the mounting surface of the first mounting surface and the second mounting surface on which the at least one elastically loaded positioning protrusion is provided, and the groove has a groove bottom and A groove opening, the at least one elastically loaded positioning protrusion includes a positioning member and an elastic member. The positioning member is located in the groove and partially exposes the opening of the groove to be snapped into one of the positioning grooves.
  • the elastic member is disposed at the bottom of the groove and applies an elastic bias to the positioning member toward the opening of the groove.
  • the at least one elastically loaded positioning protrusion includes a limiting member, and the limiting member is disposed at the opening portion of the groove to prevent the positioning member from coming out of the groove.
  • the positioning member is spherical or cylindrical.
  • the mounting seat includes a protruding central portion, the first mounting surface is provided on the central portion, and the rotational positioning structure is provided between the central portion and the housing.
  • the central portion is provided with an installation hole
  • the housing is rotatably engaged with the installation hole through a connecting shaft
  • the rotation positioning structure is disposed around the installation hole
  • the first accommodating cavity is located at the end of the neck support, the end has an outer side away from the neck of the human body and an inner side close to the neck of the human body, and the mounting seat is arranged on the inner side and includes an outer ring portion and a central portion, a through hole is formed between the central portion and the outer ring portion, a gap is formed between the outer ring portion and the outer casing, and the first air outlet portion
  • the first receiving cavity is in fluid communication with the through hole, and the through hole is in fluid communication with the slit; at least part of the first air inlet is provided on the outside, and the slit serves as another part of the first air inlet .
  • the housing includes a bottom wall, a top wall opposite the bottom wall, and an annular side wall connected between the bottom wall and the top wall, the bottom wall, the annular side wall and
  • the second accommodating cavity is jointly formed between the top walls, the top wall is provided with a second air inlet that is in fluid communication with the second accommodating cavity, and the second air outlet is arranged on the annular side wall
  • the bottom wall or the top wall is located on one side of the second receiving cavity and is fixed with a shaft tube
  • the second fan includes a stator assembly and a rotor assembly, and the stator assembly is fixed on the shaft tube
  • the rotor assembly includes a permanent magnet magnetically matched with the stator assembly and a fan wheel fixed relative to the permanent magnet; the other side of the bottom wall away from the second receiving cavity and the center of the mounting seat
  • the parts are rotatably connected.
  • a connecting shaft is disposed on the other side of the bottom wall away from the second accommodating cavity, and the connecting shaft is rotatably connected with the central part of
  • the mounting seat includes a first mounting surface facing the housing
  • the housing includes a second mounting surface facing the mounting seat, the first mounting surface and the second mounting surface face next to each other.
  • the above embodiments of the present invention provide a neck-mounted fan, which has a first air outlet for cooling the neck and a second air outlet for cooling the face or back, and the second air outlet
  • the angle of the air outlet can be adjusted so that the wind from the second air outlet can be blown to different parts of the face to meet the various cooling needs of users.
  • a mounting seat is provided on the side wall of the neck-wearing bracket, the second air outlet is mounted on the neck-wearing bracket through the mounting seat, and the mounting seat has a certain thickness, which increases its structure and installation strength.
  • the housing of the second air outlet is closely adjacent to the mounting surface of the mounting seat, and the force arm of the connecting shaft between the two is reduced, which reduces the risk of the connecting shaft breaking during use.
  • a rotating positioning structure is provided between the casing of the air outlet and the mounting seat, and the air outlet can be selectively positioned at several different circumferential positions, which is convenient for users to adjust and locate the position of the air outlet, and when adjusting During the process, it can provide users with angle perception feedback.
  • an embodiment of the present invention provides a neck-mounted fan, which includes a first air outlet and a second air outlet.
  • the first air outlet is provided with a first accommodating cavity, a first air inlet and a first air outlet that are in fluid communication with the first accommodating cavity, and the first air outlet is opened on the neck of the neck-mounted fan.
  • a first fan is arranged in the first accommodating cavity, and the wind generated by the first fan sucking in air from the first air inlet is blown out through the first air outlet.
  • a shaft tube is fixed on the side wall of the neck brace.
  • the second air outlet includes a casing provided with a second accommodating cavity, and a second fan accommodated in the second accommodating cavity.
  • the casing is provided with a second air inlet and a second air outlet that are in fluid communication with the second accommodating cavity, and when the second fan operates, the wind generated by sucking in air from the second air inlet flows out of the second air outlet. Air outlet blows out.
  • the second fan is connected to the shaft tube, and the casing can be rotated relative to the neck support to adjust the position of the second air outlet.
  • the housing includes an end wall and an annular side wall, the end wall and the annular side wall jointly define the second receiving cavity, and the second air inlet is arranged on the end wall, The second air outlet is arranged on the annular side wall.
  • a mounting seat is fixed on the neck support, and the housing is rotatably connected to the mounting seat.
  • the mount protrudes from the surface of the neck brace.
  • the mounting seat includes an outer ring portion and a central portion, and the axle tube is disposed on the central portion.
  • the housing is rotatably connected to the mounting seat through a support frame, the support frame is fixedly connected to the mounting seat, and the housing is rotatably connected to the mounting frame and covers on the periphery of the support frame.
  • the second fan defines an axial direction and a radial direction
  • the axial inner end of the support frame is fixedly connected to the mounting seat
  • the axial outer end of the support frame is connected to the housing. rotatably connected.
  • a central portion of the axially outer end of the support frame is provided with a mounting platform, and the housing is rotatably connected to the mounting platform.
  • one of the mounting table and the housing is provided with elastically loaded positioning protrusions
  • the other of the mounting table and the housing is provided with a plurality of positioning grooves
  • the elastically loaded positioning protrusions are provided with a plurality of positioning grooves. It is used to selectively cooperate with the positioning groove.
  • the elastically loaded positioning protrusion is provided on the inner side of the end wall of the housing, and the inner side of the end wall forms a groove with a groove bottom and a groove opening, and the elastically loaded positioning protrusion is
  • the protrusion includes a positioning member, an elastic member and a limiting member.
  • the positioning member is located in the groove and partially exposed from the groove, so as to be clamped into one of the positioning grooves.
  • the elastic member is disposed at the bottom of the groove and applies elastic bias to the positioning member toward the opening of the groove.
  • the limiting piece is arranged on the opening of the groove to prevent the positioning piece from escaping from the groove.
  • the groove is formed by a cylindrical element connected to the inner side of the end wall, and the end of the cylindrical element facing the support frame is an open end.
  • the axial inner end of the support frame is provided with a base, and the base is fixedly connected with the outer ring portion of the mounting seat.
  • the support frame includes a plurality of support bars, each of which is located outside the fan wheel and is connected between the base and the installation platform.
  • each support bar has an axial extension extending axially from the base and a radial extension extending axially from the axis of the axial extension The outer end extends radially outward to be fixedly connected with the mounting table.
  • a driving device is provided on the side wall of the neck-wearing bracket, the casing is rotatably connected to the neck-wearing bracket, and the driving device is used to drive the casing to rotate on the neck-wearing bracket .
  • the driving device includes a driving motor, and the rotating shaft of the driving motor is connected with the housing.
  • the above-mentioned embodiments of the present invention provide a neck-mounted fan, which has a first air outlet for cooling the neck and a second air outlet for cooling other parts of the human body, such as the face or back, and
  • the angle of the air outlet of the second air outlet can be adjusted so that the wind of the second air outlet can be blown to different parts of the face or the back, so as to meet the various cooling needs of the user.
  • the second fan of the second air outlet is connected to the mounting seat of the side wall of the neck-wearing bracket, so when adjusting the angle of the air outlet of the second air outlet, it is only necessary to rotate the second air outlet of the second air outlet.
  • the casing does not need to rotate the fan, which improves the reliability and service life of the second air outlet.
  • a rotating positioning structure is provided, which can selectively position the second air outlet at several different circumferential positions, which is convenient for users to adjust and locate the position of the air outlet, and can provide users with angle perception during the adjustment process. feedback.
  • FIG. 1 is a front view of a neck-mounted fan according to an embodiment of the present invention
  • Fig. 2 is a perspective exploded schematic view of the neck-mounted fan shown in Fig. 1 at an angle;
  • FIG. 3 is a perspective exploded schematic view of the neck-mounted fan shown in FIG. 1 at another angle;
  • Fig. 4 is a perspective exploded schematic view of an air outlet part of the neck-mounted fan shown in Fig. 2 at an angle;
  • Fig. 5 is a perspective exploded schematic view of this air outlet part of the neck-mounted fan shown in Fig. 4 at another angle;
  • Fig. 6 is an enlarged view of part B of the neck-mounted fan ring shown in Fig. 3;
  • Fig. 7 is the sectional view along the line A-A of the neck-mounted fan shown in Fig. 1;
  • Fig. 8 is the enlarged view of the circle C part in Fig. 7;
  • FIG. 9 is a three-dimensional combined schematic diagram of a neck-mounted fan according to another embodiment of the present invention.
  • Figure 10 is a front view of the neck-mounted fan of Figure 9, showing its axis of symmetry D and axis of rotation X;
  • Figure 11 is a side view of the neck-mounted fan of Figure 9, showing its axis of symmetry D and axis of rotation X, wherein the axis of symmetry D and axis of rotation X are spaced in the front-rear direction and parallel to each other;
  • Figure 12 is a perspective exploded schematic view of the neck-mounted fan of Figure 9 at an angle
  • Figure 13 is a perspective exploded schematic view of the neck-mounted fan of Figure 9 at another angle;
  • Fig. 14 is a perspective exploded schematic view of an air outlet of the neck-mounted fan of Fig. 12 at an angle;
  • Figure 15 is a perspective exploded schematic view of the air outlet of Figure 14 at another angle;
  • Figure 16 is a perspective exploded schematic view of another angle of the casing of the air outlet of Figure 15;
  • Figure 17 is an enlarged view of part E of the neck-mounted fan ring of Figure 12;
  • Fig. 18 is the schematic diagram of the neck-mounted fan of Fig. 9 in the process of rotating and folding;
  • Fig. 19 is a schematic diagram of the neck-mounted fan of Fig. 9 being rotated and folded to a storage state;
  • Figure 20 is a cross-sectional view of the neck-mounted fan of Figure 10 along the axis of symmetry D;
  • Figure 21 is an enlarged view of part F of the neck-mounted fan ring of Figure 20;
  • FIG. 22 is a schematic three-dimensional structure diagram of a neck-mounted fan according to another embodiment of the present invention.
  • Figure 23 is a schematic view of the longitudinal cross-sectional structure of the neck-mounted fan in Figure 22;
  • Fig. 24 is one of the split structure schematic diagrams of the neck-mounted fan in Fig. 22;
  • Figure 25 is the second schematic diagram of the split structure of the neck-mounted fan in Figure 22;
  • FIG. 26 is a perspective view of the second air outlet of the neck-mounted fan in FIG. 22 .
  • FIG. 1 is a front view of a neck-mounted fan 10 according to an embodiment of the present invention.
  • 2 and 3 are three-dimensional exploded schematic views of the neck-mounted fan 10 at different angles.
  • 4 and 5 are three-dimensional exploded schematic views of one of the air outlets at different angles.
  • FIG. 6 is a partial enlarged schematic view of FIG. 3 .
  • 7 and 8 are cross-sectional views showing the specific internal structure of the wind section.
  • a neck-mounted fan 10 according to an embodiment of the present invention includes a neck-mounted support 12 , a first air outlet 14 and a second air outlet 16 .
  • the neck support 12 has a curved shape suitable for being worn on the neck of a human body, and is provided with a space for accommodating batteries and other components, and a flow channel for air flow.
  • the neck support 12 has two support parts 18 , 20 that are rotatable with each other, and the two support parts 18 , 20 are connected by a rotating structure 22 .
  • the structure and function of the rotating structure 22 will be described in detail later (in conjunction with FIGS. 9 to 21 ).
  • the neck support 12 may not be provided with the rotating structure 22, that is, it does not have the function of mutual rotation.
  • the first air outlet portion 14 is provided on both the bracket portions 18 and 20 of the neck support bracket 12 . In other embodiments, the first air outlet portion 14 may also be provided on only one of the bracket portions.
  • the neck support 12 has two end portions 24 , and the second air outlet portion 16 is provided on the inner side of each end portion 24 facing the neck of the human body. In other embodiments, only one end portion 24 of the second air outlet portion 16 may be provided. Moreover, the second air outlet portion 16 may also be disposed on the outer side of the end portion 24 facing away from the neck of the human body.
  • the second air outlet 16 is provided at the end portion 24 for illustration as an example, in some other embodiments, the second air outlet 16 may not be provided at the end portion 24, Instead, it is set at the middle position of the neck brace 12 . When disposed at the end portion 24, the second air outlet 16 can blow and cool the human face; when disposed in the middle position, the second air outlet 16 can blow and cool the back of the human body.
  • the first air outlet 14 is provided with a first accommodating cavity 26 and a first air outlet 28 in fluid communication with the first accommodating cavity 26 .
  • the first accommodating cavity 26 is provided with a first fan 30
  • the first air outlet 28 is opened on the neck-wearing bracket 12 of the neck-wearing fan 10 .
  • the side of each end portion 24 of the neck support 12 facing away from the neck of the human body is provided with a first air inlet 32 , and the first air inlet 32 is in fluid communication with the first accommodating cavity 26 .
  • a plurality of first air outlets 28 are provided along the extending direction of the bracket parts 18 and 20, so that the wind generated by the first fan 30 is blown toward the neck of the human body.
  • the first fan 30 includes a stator assembly 36 and a rotor assembly 38 .
  • the stator assembly 36 is fixed on the shaft tube 34 for energization to generate a magnetic field.
  • the rotor assembly 38 includes a fan wheel 38A, and a permanent magnet such as a magnet is fixedly mounted on the inner side of the fan wheel 38A.
  • the rotor assembly 38 also includes a rotating shaft 40 fixed relative to the fan wheel 38A, and the rotating shaft 40 is rotatably supported in the shaft tube 34 .
  • the stator assembly 36 is electrified to generate a magnetic field, which magnetically drives the permanent magnet to rotate, thereby driving the fan wheel 38 to rotate.
  • the second air outlet 16 includes a housing 44 provided with a second accommodating cavity 42 , and a second fan 46 accommodated in the second accommodating cavity 42 .
  • the housing 44 is provided with a second air inlet 48 and a second air outlet 50 in fluid communication with the second receiving cavity 42 .
  • the housing 44 is mounted to the end 24 of the neck support 12 and can be rotated relative to the end 24 to adjust the position of the second air outlet 50 .
  • the housing 44 includes a bottom wall 52, a top wall 56 opposite the bottom wall 52, and an annular side wall 58 connected between the bottom wall 52 and the top wall 56.
  • the second receiving cavity 42 is formed between the bottom wall 52 , the annular side wall 58 and the top wall 56 , the second air inlet 48 is arranged on the top wall 56 , and the second air outlet 50 is arranged on the annular side wall 58 .
  • a shaft tube 60 is fixed on one side of the bottom wall 52 or the top wall 56 on the second receiving cavity 42 .
  • the top wall 56 and the annular side wall 58 are integrally formed into a mask 54 that is fixedly attached to the bottom wall 52 .
  • the second fan 46 includes a stator assembly 62 and a rotor assembly 64 .
  • the stator assembly 62 is fixed outside the shaft tube 60 .
  • Rotor assembly 64 includes permanent magnets 64A in magnetic driving engagement with stator assembly 62, and a fan wheel 64B fixed relative to permanent magnets 64A.
  • the permanent magnet 64A may be a magnet, such as a permanent magnet ring, disposed inside the fan wheel 64B.
  • the rotor assembly 64 also includes a rotating shaft 65 fixed relative to the fan wheel 64B, and the rotating shaft 65 is rotatably supported in the shaft tube 60 .
  • the stator assembly 62 is energized to generate a magnetic field, which magnetically drives the permanent magnet 64A to rotate, thereby driving the fan wheel 64B to rotate.
  • the user can adjust the position of the second air outlet 48 in the rotation direction of the housing 44 by turning the mask 54 , that is, adjust the blowing angle of the second air outlet 48 .
  • the second air outlet 16 is mainly for blowing air against the face, so the air outlet angle of the second air outlet 16 can be adjusted by turning the mask 54, so that the wind blows to different parts of the face .
  • the shaft tube 60 may also be disposed on the side of the end wall 56 where the second receiving cavity 42 is located.
  • the second fan 46 is a centrifugal fan
  • the casing 44 is cylindrical
  • the shaft tube 60 and the shaft center of the casing 44 are eccentrically arranged, so that the second fan 46 is eccentrically arranged at the into the second accommodating cavity 42 of the casing 44 .
  • a mounting seat 66 is provided on the side wall of the neck support 12 , and the housing 44 of the second air outlet 16 is rotatably mounted on the mounting seat 66 .
  • the mounting seat 66 may be an integral part of the neck-wearing bracket 12 , or may be a separate component mounted to the neck-wearing bracket 12 , which is not limited in the present invention.
  • the mounting seat 66 is disposed protruding from the surface of the neck-wearing bracket 12 , so that the mounting seat 66 has a certain thickness, which increases the structural strength of the mounting seat 66 and helps to reduce the thickness of the entire neck-wearing support sidewall. .
  • the mounting seat 66 may be flush with the surface of the neck brace 12 or concave relative to the surface of the neck brace 12 .
  • grooves are formed around the outer peripheral surface of the mounting seat 66 (refer to FIG. 7 ), so that the mounting seat 66 is formed into an hourglass-like structure with two large ends and a small one in the middle. The cross-sectional dimension is larger than the cross-sectional dimension of the middle portion.
  • the mount 66 includes a first mounting surface 68 facing the housing 44 and the housing 44 includes a second mounting surface 70 facing the mount 66 .
  • the first mounting surface 68 is immediately adjacent the second mounting surface 70 when the housing 44 is rotatably mounted to the mount 66 .
  • the close proximity mentioned in this embodiment means that the two are in contact with each other or are separated by a small distance, for example, the distance can be selected in the range of 0.8-2.5 mm.
  • the mount 66 includes an outer ring portion 72 and a central portion 74 .
  • the outer ring portion 72 and the central portion 74 protrude from the surface of the neck brace 12 and both have a certain thickness, so the installation strength of the second air outlet portion 16 can be enhanced.
  • the above-described first mounting surface 68 is provided on the central portion 74 .
  • the central portion 74 is provided with a mounting hole 76 , and the housing 44 is rotatably engaged with the mounting hole 74 through a connecting shaft 78 .
  • the connecting shaft 78 is fixedly attached to the bottom wall 52 of the housing 44 .
  • a screw hole 80 is provided in the connecting shaft 78.
  • a bolt 82 is screwed into the screw hole 80 from the other side of the central portion 74 (located on the side of the first accommodating cavity 26). , to prevent the connecting shaft 78 from disengaging from the mounting hole 76 .
  • the outer diameter of the connecting shaft 78 is slightly smaller than the diameter of the mounting hole 76 , so the connecting shaft 78 can rotate in the mounting hole 76 .
  • the part of the connecting shaft 78 between the two mounting surfaces 68 and 70 is very short, that is, the lever arm is short, so the user can make a
  • the deflection moment on the connecting shaft 78 will be very small, thus greatly reducing the risk of the connecting shaft 78 breaking. If the smaller deflection moment is not pursued, or there are other designs that can reduce the risk of fracture of the connecting shaft, the first mounting surface 68 and the second mounting surface 78 may not be arranged in close proximity.
  • the connecting shaft 78 is an element fixed to the bottom wall 52 .
  • the connecting shaft 78 and the shaft tube 60 on both sides of the bottom wall 52 may be an integral tubular element on which the bottom wall 52 is fixedly mounted.
  • the connecting shaft 78 and the shaft tube 60 may also be integrally formed elements with the bottom wall 52 .
  • the connecting shaft 78 may be an element on the central portion 74 , ie, the connecting shaft 78 is rotatably inserted into the housing 44 .
  • the bolt 82 also acts as part of the connecting shaft. Therefore, the form of the connecting shaft between the housing 44 and the central portion 74 is various, and is not limited to the structure shown in the drawings.
  • a through hole 84 is provided between the central portion 74 and the outer ring portion 72 .
  • an annular gap 86 is formed between the outer ring portion 72 and the bottom wall 52 of the housing 44 .
  • the first receiving cavity 26 of the first air outlet 14 is in fluid communication with the through hole 84, the through hole 84 is in fluid communication with the slit 86, and the slit 86 serves as another part of the first air inlet 32 of the first air outlet 14.
  • the first air outlet 14 also has the first air inlet 32 on the inner side, which increases the air intake and the air outlet. .
  • the first air inlet 32 of the first air outlet 14 is provided on the outer side, and the slit 86 serves as another part of the first air inlet 32 .
  • the first air inlet 32 may be provided only on the outer side of the end portion 24 , and the first air inlet 32 may not be provided on the inner side of the end portion 24 .
  • a rotational positioning structure is provided between the first mounting surface 68 and the second mounting surface 70 , and is disposed around the mounting hole 76 of the central portion 74 .
  • the rotary positioning structure can selectively position the second air outlet 16 at several different circumferential positions.
  • the rotational positioning structure includes a plurality of positioning grooves 88 and at least one elastically loaded positioning protrusion 90 .
  • a plurality of positioning grooves 88 are provided on the second mounting surface 70 of the bottom wall 52 of the housing 44 and are spaced along the rotation direction of the housing 44 .
  • the elastically loaded positioning protrusions 90 are used to selectively cooperate with the plurality of positioning grooves 88 to selectively position the second air outlet 16 at several different circumferential positions in the rotational direction of the housing 44 .
  • the locating grooves 88 are evenly spaced in the rotational direction.
  • the number and spacing of the positioning grooves 88 are determined according to design requirements. An increase in the number of positioning grooves 88 can correspondingly bring more levels of angular positioning, bringing users more choices and finer angle adjustment.
  • the illustrated embodiment includes one spring-loaded positioning projection 90, but in other embodiments, more than one spring-loaded positioning projection 90 may be included.
  • a groove 92 is formed on the first mounting surface 68 , and the groove 92 has a groove bottom 94 and a groove opening 96 .
  • At least one elastically loaded positioning protrusion 90 includes a positioning member 98 , an elastic member 100 and a limiting member 102 .
  • the positioning member 98 is located in the groove 92 and partially exposes the opening portion 96 of the groove, that is, partially extends beyond the first mounting surface 68 , so as to be snapped into one of the positioning grooves 88 .
  • the elastic member 100 is disposed at the groove bottom 94 and applies an elastic bias to the positioning member 98 toward the groove opening 96 .
  • the limiting member 102 is disposed on the opening portion 96 of the groove to prevent the positioning member 98 from being separated from the groove 92 .
  • the positioning member 98 faces the flat surface portion of the bottom wall 52, the positioning member 98 is pressed into the groove 92 by the flat surface portion, and the elastic member 100 is compressed.
  • the housing 44 rotates until one of the positioning grooves 88 is aligned with the positioning member 98 , the positioning member 98 is pushed into the positioning groove 88 by the elastic restoring force of the elastic member 100 to form the positioning between the housing 44 and the mounting seat 66 .
  • the edge of the positioning groove 88 of the bottom wall 52 slides over the arcuate surface of the positioning member 98 to press the positioning member 98 into the groove 92 .
  • the side of the positioning member 98 facing the second installation surface 70 is an arc-shaped surface, which may be a cylindrical body or a spherical body whose end surface is an arc-shaped surface.
  • the positioning member 98 is a metal ball.
  • An example of the elastic member 100 may be a compression spring.
  • the stopper 102 allows the positioning member 98 to expose the groove 92 but prevents the positioning ball 98 from completely disengaging from the groove 92, for example, a member having an inner hole with a diameter smaller than the diameter of the positioning member 98, such as a ring. In some embodiments, the limiting member 102 may not be provided.
  • the end of the elastic member 100 abutting against the positioning member 98 is also fixedly connected with the positioning member 98 , so that the positioning member 98 can also be prevented from being completely separated from the groove 92 .
  • the positioning grooves 88 are provided on the second mounting surface 70 and the positioning protrusions 90 are provided on the first mounting surface 68, in other embodiments, the positions of the positioning grooves 88 and the positioning protrusions 90 may be different. exchange. Therefore, the positioning groove 88 is provided on one of the first mounting surface 68 and the second mounting surface 70 , and the positioning protrusion 90 is provided on the other of the first mounting surface 68 and the second mounting surface 70 .
  • the above-mentioned embodiments of the present invention provide a neck-mounted fan, which has a first air outlet for cooling the neck and a second air outlet for cooling other parts of the human body, such as the face or back, and
  • the angle of the air outlet of the second air outlet can be adjusted so that the wind of the second air outlet can be blown to different parts of the face or the back, so as to meet the various cooling needs of the user.
  • the second air outlet is mounted on the neck support through a mounting seat, and the mounting seat has a certain thickness, which increases its structure and mounting strength.
  • the housing of the second air outlet is closely adjacent to the mounting surface of the mounting seat, and the force arm of the connecting shaft between the two is reduced, which reduces the risk of the connecting shaft breaking during use.
  • a rotating positioning structure is provided between the casing of the air outlet and the mounting seat, and the air outlet can be selectively positioned at several different circumferential positions, which is convenient for users to adjust and locate the position of the air outlet, and when adjusting During the process, it can provide users with angle perception feedback.
  • FIG. 9 to 21 illustrate a neck-mounted fan 210 according to another embodiment of the present invention.
  • the neck-mounted fan 210 of this embodiment includes a neck-mounted support 212 , a first air outlet 214 and a second air outlet 216 .
  • the neck support 212 has a curved shape suitable for being worn on the neck of a human body, and is provided with a space for accommodating batteries and other components, and a flow channel for air flow.
  • the neck support 212 has two support parts 218 , 220 that are rotatable with each other, and the two support parts 218 , 220 are connected by a rotating structure 22 .
  • the two bracket portions 218, 220 are symmetrical about an axis D of symmetry.
  • the rotation structure 22 defines a rotation axis X, and the symmetry axis D and the rotation axis X are spaced apart and parallel to each other.
  • the neck support 212 may not be provided with the rotating structure 22, that is, it does not have the function of mutual rotation.
  • the first air outlet portion 214 is provided on both the bracket portions 218 and 220 of the neck-wearing bracket 212 . In other embodiments, the first air outlet portion 214 may also be provided on only one of the bracket portions.
  • the neck support 212 has two end portions 224, and each end portion 224 is provided with the second air outlet portion 216 facing the inner side of the neck of the human body. In other embodiments, only one end portion 224 of the second air outlet portion 216 may be provided. Moreover, the second air outlet portion 216 may also be disposed on the outer side of the end portion 224 facing away from the neck of the human body. Likewise, in other embodiments, the second air outlet portion 216 may not be provided at the end portion 224 .
  • the first air outlet 214 is provided with a first receiving cavity 226 and a first air outlet 228 in fluid communication with the first receiving cavity 226 .
  • the first accommodating cavity 226 is provided with a first fan 230 , and the first air outlet 228 is opened on the neck-wearing bracket 212 of the neck-wearing fan 210 .
  • the side of each end 224 of the neck support 212 facing away from the neck of the human body is provided with a first air inlet 232 , and the first air inlet 232 is in fluid communication with the first accommodating cavity 226 .
  • first fan 230 when the first fan 230 is running, air is drawn in from the first air inlet 232 , and the generated air flows through the flow channel in the bracket portion and then is blown out through the first air outlet 228 .
  • a plurality of first air outlets 228 can be provided along the extending direction of the bracket parts 218 and 220, so that the wind generated by the first fan 230 is blown toward the neck of the human body.
  • the first fan 230 includes a stator assembly 236 and a rotor assembly 238 .
  • the stator assembly 236 is fixed on the shaft tube 234 for energizing to generate a magnetic field.
  • the rotor assembly 238 includes a fan wheel 238A, and a permanent magnet such as a magnet is fixedly installed on the inner side of the fan wheel 238A.
  • the rotor assembly 238 also includes a rotating shaft 240 fixed relative to the fan wheel 238A, and the rotating shaft 240 is rotatably supported in the shaft tube 234 .
  • the stator assembly 236 is energized to generate a magnetic field, which magnetically drives the permanent magnet to rotate, thereby driving the fan wheel 238A to rotate.
  • the second air outlet 216 includes a housing 244 with a second accommodating cavity 242 and a second fan 246 accommodated in the second accommodating cavity 242 .
  • the housing 244 is provided with a second air inlet 248 and a second air outlet 250 communicating with the second receiving cavity 242 .
  • the housing 244 is mounted to the end 224 of the neck support 212 and can be rotated relative to the end 224 to adjust the position of the second air outlet 250 .
  • the housing 244 includes an end wall 256 and an annular side wall 258 , the second air inlet 248 is disposed on the end wall 256 , and the second air outlet 250 is disposed on the annular side wall 258 .
  • the second fan 246 includes a stator assembly 262 and a rotor assembly 264 .
  • Rotor assembly 264 includes permanent magnets 264A in magnetic driving engagement with stator assembly 262, and a fan wheel 264B fixed relative to said permanent magnets 264A.
  • the permanent magnet 264A can be a magnet, such as a permanent magnet ring, disposed inside the fan wheel 264B.
  • the rotor assembly 264 also includes a shaft 265 fixed relative to the fan wheel 264B.
  • the stator assembly 262 is energized to generate a magnetic field, which magnetically drives the permanent magnet 264A to rotate, thereby driving the fan wheel 264B to rotate.
  • the user can adjust the position of the second air outlet 248 in the rotation direction by turning the housing 244 , that is, to adjust the blowing angle of the second air outlet 248 .
  • the second air outlet 216 is mainly for blowing air against the face, so the air outlet angle of the second air outlet 216 can be adjusted by turning the housing 244, so that the wind blows toward the face. different parts.
  • a mounting seat 266 is provided on the side wall of the neck support bracket 212 , and the housing 244 of the second air outlet 216 is rotatably mounted on the mounting seat 266 .
  • the mounting seat 266 may be an integral part of the neck-wearing bracket 12 , or may be a separate part installed to the neck-wearing bracket 212 , which is not limited in the present invention.
  • the mounting seat 266 is disposed protruding from the surface of the neck-wearing support 212 , so that the mounting seat 266 has a certain thickness, which increases the structural strength of the mounting seat 266 and helps to reduce the thickness of the entire neck-wearing support sidewall.
  • the mounting base 266 may be flush with the surface of the neck support 212 or concave relative to the surface of the neck support 212 .
  • grooves are formed around the outer peripheral surface of the mounting seat 266 (refer to FIG. 10 ), so that the mounting seat 266 is formed into an hourglass-like structure with two large ends and a small one in the middle. The cross-sectional dimension is larger than the cross-sectional dimension of the middle portion.
  • a shaft tube 260 is fixed on the mounting seat 266 , and the stator assembly 262 of the second fan 246 is fixedly installed on the outside of the shaft tube 260 .
  • the rotating shaft 265 of the rotor assembly 264 of the second fan 246 is rotatably supported in the shaft tube 260 . That is to say, in this embodiment, the second fan 246 of the second air outlet 216 is installed on the mounting seat 266, so it is installed on the neck support 212.
  • the mount 266 includes an outer ring portion 272 and a central portion 274 . An outer ring portion 272 and a central portion 274 protrude from the surface of the neck brace 212, and the shaft tube 260 is disposed on the central portion 274, to which the housing 244 is rotatably connected in some embodiments.
  • the housing 244 of the second air outlet 216 is rotatably mounted to the mounting seat 266 through a support frame 300 .
  • the support frame 300 is fixed on the mounting base 266 , so it can also be regarded as a part of the mounting base 266 .
  • the housing 244 is rotatably connected to the support frame 300 and covers the periphery of the support frame 300 .
  • the second fan 246 defines an axial direction, the axial inner end of the support frame 300 is fixedly connected with the mounting seat 266 , and the axial outer end is rotatably connected with the housing 244 .
  • a mounting platform 302 is provided at the central portion of the axial outer end of the support frame 300 , a connecting hole 310 is provided on the end wall 256 of the housing 244 , and a locking member 312 passes through the connecting hole 310 of the housing 224 and is
  • the mounting table 302 is fixedly connected.
  • a connecting pipe 304 protrudes outward in the axial direction from the middle of the mounting table 302 , and the connecting pipe 304 has a screw hole 306 therein. After 310, screw it into the screw hole 306 of the connecting pipe 304 to fix it.
  • the fastener 312 has a head 314 and a rod 315 extending from the head 314 .
  • the diameter of the connecting hole 310 is smaller than the diameter of the head 314 but larger than the diameter of the rod 315 .
  • the locks 312 limit the axial disengagement of the housing 244 from the support frame 300, but allow the housing 244 to rotate about the axial direction.
  • the annular region of the mounting table 302 surrounding the connecting pipe 304 is provided with a plurality of positioning grooves 308 surrounding the connecting pipe 304 .
  • An elastically loaded positioning protrusion 320 is provided on the inner side of the end wall 256 of the housing 244 .
  • the positioning protrusions 320 are used to selectively cooperate with several positioning grooves 308 to selectively position the second air outlet 250 of the housing 244 at several different circumferential positions in the rotation direction of the housing 244 .
  • the positioning grooves 308 are evenly spaced along the rotational direction. The number and spacing of the positioning grooves 308 are determined according to the design requirements. An increase in the number of the positioning grooves 308 can correspondingly bring more levels of angular positioning, bringing users more choices and finer angle adjustment.
  • a groove 316 is formed on the inner side of the end wall 256 of the housing 244 , and the positioning protrusion 320 is received in the groove 316 .
  • the groove 316 has a groove bottom and a groove opening 318 opposite the groove bottom.
  • the groove 316 is formed by a cylindrical member connected to the inner side of the end wall 256 , and one end of the cylindrical member facing the support frame 300 is an open end, forming the groove opening 318 .
  • the positioning protrusion 320 includes a positioning member 322 , an elastic member 324 and a limiting member 326 .
  • the positioning member 322 is located in the groove 316 and partially exposed from the groove 316 to be snapped into one of the positioning grooves 308 .
  • the elastic member 324 is disposed at the bottom of the groove and applies an elastic bias to the positioning member 322 toward the opening portion 318 of the groove.
  • the limiting member 326 is disposed on the opening portion 318 of the groove to prevent the positioning member 322 from escaping from the groove 316 .
  • the positioning member 322 faces the flat surface portion of the mounting table 302 , the positioning member 322 is pressed into the groove 316 by the flat surface portion, and the elastic member 324 is compressed.
  • the housing 244 rotates until one of the positioning grooves 308 is aligned with the positioning member 322 , the positioning member 322 is pushed into the positioning groove 308 by the elastic restoring force of the elastic member 324 to form the positioning between the housing 244 and the support frame 300 .
  • the edge of the positioning groove 308 of the mounting table 302 slides over the arc-shaped surface of the positioning member 322 to press the positioning member 322 into the groove 316 .
  • the side of the positioning member 322 facing the mounting table 302 is an arc-shaped surface, which may be a cylindrical body or a spherical body whose end surface is an arc-shaped surface.
  • the positioning member 322 is a metal ball.
  • An example of the elastic member 324 may be a compression spring.
  • the limiting member 326 allows the positioning member 322 to expose the groove 316 but prevents the positioning ball 322 from completely disengaging from the groove 316 , for example, a member having an inner hole with a diameter smaller than the diameter of the positioning member 322 , such as a ring. In other embodiments, the limiting member 326 may not be provided.
  • One end of the elastic member 324 abutting against the positioning member 322 is also fixedly connected with the positioning member 322 , so that the positioning member 322 can be prevented from being completely separated from the groove 316 .
  • the positioning grooves 308 are provided on the mounting table and the positioning protrusions 320 are provided inside the end wall 256 of the housing 244, in other embodiments, the positions of the positioning grooves 308 and the positioning protrusions 320 can be interchanged. Therefore, the positioning groove 308 is provided on one of the mounting table 302 and the end wall 256 of the housing 244 , and the positioning protrusion 320 is provided on the other of the mounting table 302 and the end wall 256 of the housing 244 .
  • the second air outlet 250 of the housing 244 can be selectively positioned at several different circumferential positions, which is convenient for users to adjust and Position the air outlet and provide angle perception feedback to the user during the adjustment process.
  • the axial inner end of the support frame 300 is provided with a base 350 .
  • the base 350 is annular and is fixedly connected with the outer ring portion 272 of the mounting seat 266 .
  • the support frame 300 includes a plurality of support bars 352.
  • Each support bar 352 is located outside the fan wheel 264B and is connected between the base 350 and the mounting table 302.
  • Each support bar 352 has an axial extension portion 354 and a radial extension portion. 356 , the axially extending portion 354 extends axially from the base 350 , and the radially extending portion 356 extends radially from the axially outer end of the axially extending portion 354 to be fixedly connected with the mounting table 302 .
  • these support bars 352 collectively support the mounting table 302 beyond the axially outer end of the fan wheel 264B.
  • the position where the axially extending portion 354 is connected to the base 350 is closer to the inner edge of the base 350 (see FIG. 15 ), and the outer edge of the base 350 is connected to the base 350 .
  • the outer edge of the mounting seat 266 is smoothly connected, and the outer edge of the end of the housing 244 facing the base 350 is flush with the outer edge of the base 266, so that the base 350, the housing 22 and the mounting seat are 266 are connected smoothly (see Figure 10).
  • a through hole 284 is provided between the central portion 274 and the outer ring portion 272 of the mounting seat 266 , and the through hole 284 is disposed around the shaft tube 260 .
  • the first receiving cavity 226 of the first air outlet 214 is in fluid communication with the through hole 284 .
  • the axial inner end of the annular side wall 258 and the base 350 can form a gap in the axial direction, the through hole 284 is in fluid communication with the gap, and the gap can be used as another part of the first air inlet 232 of the first air outlet 214 .
  • the first air outlet 214 in addition to forming the first air inlet 232 on the outer side of the end 224 of the neck-wearing bracket 212, the first air outlet 214 also has the first air inlet 232 on the inner side, which increases the air intake and the air outlet. .
  • at least part of the first air inlet 232 of the first air outlet 214 is provided on the outer side, and the gap between the annular side wall 258 and the base 350 serves as another part of the first air inlet 232 .
  • the base 350 when the base 350 is not provided between the axially inner end (ie, the end face) of the annular sidewall 258 and the inner surface of the neck brace 212, the axially inner end (ie, the end face) of the annular sidewall 258 A gap is formed with the inner surface of the neck bracket 212, the through hole 284 is in fluid communication with the gap, and at least part of the first air inlet 232 of the first air outlet 214 is provided on the outside of the neck bracket 212, and the gap is another part of the first air inlet 232.
  • An air inlet 232 is another part of the first air inlet 232 .
  • the first air inlet 232 may be provided only on the outer side of the end portion 224 , and the first air inlet 232 may not be provided on the inner side of the end portion 224 .
  • the housing 244 of the second air outlet 216 is rotatably connected to the mounting seat 266 through the support bracket 300 in this embodiment, in other embodiments, the housing 244 can also be directly connected to the mounting seat 266 without disposing the support bracket 300 . That is, the rotatable connection mentioned here includes direct or indirect connection.
  • the rotating structure 22 will be described in detail below.
  • the neck support 212 includes two supports 218 and 220 symmetrical about the axis of symmetry D, and the rotating structure 22 is rotatably connected between the two support parts 218 and 220 .
  • the rotating structure 22 includes a first rotating part 421 and a second rotating part 422.
  • the first rotating part 421 is fixedly connected to one of the bracket parts 220;
  • the second rotating part 422 is fixedly connected to the other bracket part 218;
  • the second rotating portion 422 is rotatably connected around a rotating axis X, and the rotating axis X is spaced apart from the symmetry axis D and parallel to each other.
  • the first rotating part 421 is provided with a positioning groove 411
  • the second rotating part 422 is provided with an elastically loaded positioning protrusion 420.
  • the elastically loaded positioning protrusion 420 can selectively Snap into the positioning groove 411 .
  • the rotating structure 22 by disposing the rotating structure 22 between the two bracket parts 218 and 220 , the first rotating part 421 and the second rotating part 422 of the rotating structure 22 are rotatably connected, so that the two bracket parts 218 and 220 can rotate relative to each other. .
  • the neck-mounted fan can be folded by rotating the two bracket parts 218 and 220 (that is, the neck-mounted fan changes from the state shown in FIG. 9 to the state shown in FIG. 18 , and finally becomes the state shown in FIG. 19 .
  • the shape shown in the figure) is convenient for the user to carry or store; when the user needs to use it, the neck-mounted fan can be opened by rotating the two bracket parts 218 and 220 in the opposite direction (that is, the neck-mounted fan is changed from the shape shown in FIG. 19 . 9), which is convenient for users to wear and use.
  • the user can perceive the rotation angle when rotating the two bracket parts 218 and 220 , and the angles of the two bracket parts 218 and 220 are not changed after the rotation is completed. It is easy to change easily, is convenient for users to use, increases the practical performance of the neck-mounted fan, and improves the use experience of users.
  • the first rotating part 421 and the second rotating part 422 are arranged in layers along the rotating axis X (the upper and lower positional relationship of the first rotating part 421 and the second rotating part 422 can be exchanged), and the rotating axis X of the rotating structure 22 18 and 19, the two support parts 218, 220 can be rotated and folded in the direction indicated by the arrow S; the two support parts 218, 220 During relative rotation, the side walls of the two bracket parts 218, 220 can approach or move away from each other).
  • the two bracket parts 218 and 220 are connected by the rotating structure 22 to form a U-shaped structure, and between the two bracket parts 218 and 220 is formed a place for the neck-mounted fan to be worn on the user's neck. cavity.
  • the first rotating part 421 and the second rotating part 422 are connected so that only the relative relationship between the first rotating part 421 and the second rotating part 422 about the rotating axis X is allowed. Rotation does not allow linear movement between the first rotating part 421 and the second rotating part 422 along the direction of the rotating axis X.
  • the first rotating part 421 is provided with a convex shaft 412
  • the second rotating part 422 is provided with a rotating hole 424
  • the convex shaft 412 is inserted into the rotating hole 424 and can rotate in the rotating hole 424 , so that the first rotating part 421 and the second rotating part 422 are rotatably connected.
  • the rotating structure 22 also includes a locking member 423.
  • One end of the locking member 423 is fixed to the protruding shaft 412.
  • the other end of the locking member 423 is located on the side of the second rotating portion 422 away from the first rotating portion 421.
  • the radial dimension is larger than the radial dimension of the rotation hole 423 .
  • the locking member 423 is provided with a flange 431 protruding radially outward, the radial dimension of the flange 431 is larger than the radial dimension of the rotating hole 424 , the flange 431 and the second rotating part 422 Abutting against each other, the locking member 423 is used to prevent the first rotating part 421 and the second rotating part 422 from disengaging from each other.
  • the locking member 423 may be a structure such as a screw, a rivet, a pin, etc., which is not limited herein.
  • the elastically loaded positioning protrusion 420 includes an elastic member 430 , a positioning member 432 and a limiting member 434 .
  • the positioning member 432 is located in a groove 428 of the second rotating portion 422 and partially exposes the groove 428 .
  • the groove 428 has a groove bottom 428A and a groove opening 428B in a direction parallel to the rotation axis.
  • the elastic member is disposed on the groove bottom 428A and applies elastic bias to the positioning member 432 toward the groove opening 428B.
  • the limiting member 434 is disposed on the groove opening portion 428B to prevent the positioning member from coming out of the groove 428 .
  • the surface of the positioning member 432 facing the first rotating portion 421 is an arc surface
  • the positioning member 432 may be a cylindrical body or a spherical body with an arc surface.
  • the positioning member 432 is a metal ball.
  • An example of the elastic member 430 may be a compression spring.
  • the stopper 434 allows the stopper 432 to emerge from the groove 428 but prevents the stopper 432 from completely disengaging from the groove 428 , for example, it may be a member with an inner hole and a diameter smaller than the diameter of the stopper 432 , such as a ring, the stopper 432
  • the groove 428 is partially exposed through the inner hole.
  • the limiting member 434 may not be provided.
  • One end of the elastic member 430 abutting against the positioning member 432 is also fixedly connected to the positioning member 432 , so that the positioning member 432 can be prevented from being completely separated from the groove 428 .
  • the number of the positioning grooves 411 is multiple, and the multiple positioning grooves 411 are evenly spaced along the circumferential direction of the first rotating portion 421 .
  • it can also be set unevenly.
  • the position of the positioning member 432 can be converted between being snapped into the positioning groove 411 and positioned between two adjacent positioning grooves 411 .
  • the positioning member 432 is located between two adjacent positioning grooves 411 (that is, the positioning member 432 is in abutment with the outer wall of the first rotating part 421 )
  • the positioning member 432 faces a position away from the first rotating part 421 in the groove 428 .
  • the side retracts (that is, the positioning member 432 moves upward in FIG.
  • the elastic member 430 is compressed and accumulating force; when the position of the positioning member 432 moves to correspond to the positioning groove 411 , the positioning member 432 is in the elastic member 421 .
  • the positioning member 432 is locked into the positioning groove 411 under the driving of the elastic member 421 (that is, the positioning member 432 is locked into the positioning groove 411 under the driving of the restoring force of the elastic member 421 ), thereby fixing the rotation angle between the two bracket parts 218 and 220 .
  • the position of the positioning member 432 is constantly changing when it is snapped into the positioning groove 411 and located between the two adjacent positioning grooves 411, it can provide the user with a damping feel when rotating, so that the user can rotate the two bracket parts 218, 220. It can sense the rotation angle and improve the user experience.
  • the rotating structure 22 is a cylindrical structure.
  • the rotating structure 22 protrudes toward the front side of the bracket parts compared to the bracket parts 218 and 220 .
  • the front side of the bracket part means that the side facing upward when the neck-mounted fan is worn on the neck is the front side, and the side facing downward is the rear side.
  • the two bracket portions 218 and 220 are respectively provided with connecting edges 440 facing each other, and front side edges 442 and rear side edges 444 located on both sides of the connecting edge 440 .
  • One of the bracket parts 220 fixedly connected with the first rotating part 421 is provided with a first arc-shaped notch 446 matching the outer contour of the second rotating part 422 , and the first arc-shaped notch 446 is located at the connecting edge of the one of the bracket parts 220 The position where 440 meets the adjacent front side edge 442 .
  • the other bracket portion 218 fixedly connected with the second rotating portion 422 is provided with a second arc-shaped notch 448 matching the outer contour of the first rotating portion 421 , and the second arc-shaped notch 448 is located at the connecting edge of the other bracket portion 220 The position where 440 meets the adjacent front side edge 442 .
  • the two bracket parts 218 and 220 can pass through the arc-shaped gaps 446, 220 when folded in this solution.
  • the 448 rotates closer to the rotating structure 22, which reduces the volume of the neck-mounted fan and saves space.
  • the arc lengths of the arcuate notches 446, 448 are quarter circles
  • the rotating structure 22 is cylindrical
  • half of the rotating structure 22 protrudes from the front side of the bracket portion (FIG. 11).
  • the rotating structure 22 may also protrude toward the rear side of the bracket portion compared to the bracket portion.
  • the rotating structure is shown in FIG. 20 and FIG. 21 .
  • the bracket parts 218 and 220 are both hollow structures.
  • a first cavity 413 is provided in the bracket parts 218 and 220, and the first cavity 413 serves as an air flow channel 449 (FIG. 13) and/or a place for accommodating various components, such as a circuit board 460, a battery 470 (FIG. 13), etc. .
  • the rotating structure 22 is provided with a second cavity 450 , and the first cavity 413 in the bracket parts 218 and 220 communicates with the second cavity 450 in the rotating structure 22 .
  • the second cavity 450 can facilitate cables (such as circuit
  • the connection cables between the plate 460 and the stator assemblies 36, 236) are routed between the two bracket parts.
  • the rotating structure 22 introduced here can also be applied to the embodiments of FIGS. 1 to 8 and the embodiments of FIGS. 22 to 26 later.
  • the rotating structure 22 can also be used to connect two bracket parts of any neck-mounted fan, regardless of whether the bracket part is provided with an air outlet part or how many air outlet parts are provided.
  • the rotating structure 22 can also be applied to any neck-mounted device having two bracket parts, not limited to a neck-mounted fan, for rotatably connecting the two bracket parts, so that the two bracket parts can be rotated and folded Together, the occupied space is reduced, and it is convenient to carry and store; for example, the rotating structure 22 can also be applied to a neck massager.
  • the above-mentioned embodiments of the present invention provide a neck-mounted fan, which has a first air outlet for cooling the neck and a second air outlet for cooling other parts of the human body, such as the face or back, and
  • the angle of the air outlet of the second air outlet can be adjusted so that the wind of the second air outlet can be blown to different parts of the face or the back, so as to meet the various cooling needs of the user.
  • the second fan of the second air outlet is connected to the mounting seat, so it is installed on the neck support bracket, so when adjusting the angle of the air outlet of the second air outlet, it is only necessary to rotate the second air outlet.
  • the casing of the air part does not need to rotate the fan, which improves the reliability and service life of the second air outlet.
  • a rotating positioning structure is provided, which can selectively position the second air outlet at several different circumferential positions, which is convenient for users to adjust and locate the position of the air outlet, and can provide users with angle perception during the adjustment process. feedback.
  • the two support parts of the neck-mounted fan or other neck-mounted devices are connected by a rotating structure.
  • the neck-mounted fan can be folded by rotating the two support parts, which is convenient for the user to carry or use.
  • the positioning is performed by the mutual cooperation of the elastically loaded positioning protrusions and the positioning grooves, the user can perceive the rotation angle when rotating the two bracket parts, and the angles of the two bracket parts are not easily changed after the rotation is completed, which is convenient for the user. In use, the practical performance of the neck-mounted fan is increased, and the user experience is improved.
  • 22 to 26 illustrate a neck-mounted fan 500 according to yet another embodiment of the present invention.
  • a neck-mounted fan 500 provided in this embodiment includes a neck-mounted support 512 , a first fan 530 , a second fan 546 and a casing 544 .
  • the neck-wearing bracket 512 is curved and can be worn on the neck of the human body.
  • the neck-wearing bracket 512 is provided with a first accommodating cavity 526 for accommodating the first fan 530 and an air duct 502 communicating with the first accommodating cavity 526 .
  • the bracket 512 is further provided with a first air inlet 532 corresponding to the first fan 530.
  • the first air inlet 532 is communicated with the first receiving cavity 526.
  • the side wall of the air duct 502 is provided with a first air outlet 504.
  • the first fan The wind generated by the operation of 530 is blown out from the first air outlet 504 after passing through the air duct 502 .
  • the casing 544 is connected to the neck support 512 , and the casing 544 is provided with a second accommodating cavity 542 for accommodating the second fan 546 , and a second air inlet 548 and a second air outlet 550 communicating with the second accommodating cavity 542 . Both the air outlet 548 and the second air outlet 550 are communicated with the second accommodating cavity 542 , the second fan 546 is installed in the second accommodating cavity 542 , and the wind generated by the operation of the second fan 546 passes through the second accommodating cavity 542 and then exits the second accommodating cavity 542 .
  • the tuyere 550 blows out.
  • the first fan 530 and the second fan 546 are preferably turbofans.
  • the wind blown from the first air outlet 504 of the neck-wearing bracket 512 can blow to the user's neck, and the wind blown from the second air outlet 550 of the casing 544 can blow to the user's face, so that the neck-wearing fan can be blown toward the user's face.
  • the wind can blow to the face and neck of the human body at the same time, and the wind range is wider and the wind is stronger.
  • the housing 544 is rotatably connected to the neck-wearing bracket 512, so that the user can easily adjust the air outlet direction of the second air outlet 550 according to his own needs, so that the wind from the second fan 546 flows from the second air outlet.
  • the 550 blows to different positions of the human face, which is more convenient for users to use.
  • the shell 544 and the neck support 512 may also be fixedly connected, and the second air outlet 550 is designed to face the face of the human body directly.
  • the neck-wearing bracket 512 is C or U-shaped as a whole, and is adapted to the curvature of the human neck.
  • the neck support 512 includes a connection portion 510 and two first air outlet portions 514 , and the two first air outlet portions 514 are respectively disposed at both ends of the connection portion 510 and fixed to the connection portion 510 .
  • the connecting portion 510 is also provided with a universal hose 521, so that the user can bend the neck-wearing bracket 512 according to the size of his neck, so that the neck-wearing bracket 512 matches his own neck, and the first accommodating
  • the cavity 526 , the air duct 502 , the first air inlet 532 and the first air outlet 504 are all disposed in the first air outlet 514 .
  • a first fan 530 and an air duct 502 corresponding to the first fan 530 are provided in the two first air outlet parts 514, so that air can be discharged from both sides of the neck-mounted fan.
  • the air outlet 514 is provided with a first fan 530 and an air duct 502 corresponding to the first fan 530 , so as to realize unilateral air outlet from the neck-mounted fan.
  • the first air outlet portion 514 is disposed at both ends of the connection portion 510 and is pivotally connected to the connection portion 510 , that is, the first air outlet portion 514 can rotate relative to the connection portion 510 .
  • a latching tooth can also be provided at the pivoting position.
  • the first air outlet portion 514 is slidably connected to the connecting portion 510 , so that the length of the neck support 512 can be adjusted freely.
  • the neck support 512 includes two first air outlet portions 514, and the two first air outlet portions 514 are directly pivotally connected.
  • each second fan 546 and the casing 544 together form a second air outlet 540
  • the number of the second fan 546 and the casing 544 is preferably two
  • each casing 544 is provided with a second fan 546 inside the casing.
  • the 544 is preferably arranged on the inner side of both ends of the neck-wearing bracket 512 , that is, the side where the two ends of the neck-wearing bracket 512 face each other.
  • the housing 544 is disposed at one end of the first air outlet 514 away from the connecting portion 510 and toward the inner side of the neck support 512 (ie, the opposite side of the two first air outlets 514 ).
  • the casing 544 may also be disposed on the outer sides of both ends of the neck-wearing bracket 512 , or the casings 544 may be disposed on the inner and outer sides of both ends of the neck-wearing frame 512 at the same time.
  • the second air inlets 548 are provided on two opposite side walls of the housing 544 , and the second air outlets 550 and the second air inlets 548 are respectively provided on two adjacent side walls of the housing 544 .
  • the outer shell 544 has a circular structure, the outer shell 544 includes a first shell 544a and a second shell 544b which are connected to each other, and the second air inlet 548 is provided on the bottom walls of the first shell 544a and the second shell 544b, The second air outlet 550 is provided on the side walls of the first casing 544a and the second casing 544b.
  • a connecting shaft 578 is provided on one side of the housing 544, and a mounting hole 576 is provided on the neck support 512 (FIG. 25).
  • the connecting shaft 578 is installed in the mounting hole 576 and can rotate in the mounting hole 576, and the housing 544 passes The connecting shaft 578 cooperates with the mounting hole 576 to realize the rotational connection with the neck support 512 .
  • the connecting shaft 578 is disposed on the bottom wall of the second housing 544b, and the connecting shaft 578 is provided with a limiting protrusion 522, the limiting protrusion 522 is an annular structure, and the outer diameter of the limiting protrusion 522 is larger than that of the mounting hole 576
  • the inner diameter of the mounting hole 576 is provided with a limit groove that cooperates with the limit protrusion 522.
  • the limit protrusion 522 and the limit groove are used to limit the position of the connecting shaft 578 in the mounting hole 576, so that the connecting shaft 578 is locked In the mounting hole 576 , the connecting shaft 578 is prevented from falling out of the mounting hole 576 .
  • the limiting groove can also be provided on the connecting shaft 578 , and the limiting protrusion 522 is provided in the mounting hole 576 .
  • a driving device 61 is provided on the neck-wearing bracket 512 , and the driving device 61 is used to drive the casing 544 to rotate on the neck-wearing bracket 512 .
  • the casing 544 is automatically rotated cyclically so as to discharge air toward different positions of the human body, which is convenient for the user to use.
  • the driving device 61 includes a driving motor 611 and a first transmission gear 612, a second transmission gear 614 is provided on the connecting shaft 578, the driving motor 611 is fixed on the neck support 512, and the axis of the driving motor 611 is connected to the connecting shaft
  • the axes of the 578 are on different lines, but parallel to each other.
  • the first transmission gear 612 and the second transmission gear 614 are arranged in the gap between the second housing 544b and the first air outlet 514, or the first transmission gear 612 and the second transmission gear 614 are arranged in the first air outlet 514 to cover the first transmission gear 612 and the second transmission gear 614 to enhance the appearance of the neck-mounted fan.
  • the first transmission gear 612 is installed on the rotation shaft of the driving motor 611 , and the first transmission gear 612 and the second transmission gear 614 are meshed with each other, so that the rotation shaft of the driving motor 611 is connected with the housing 544 in a transmission manner.
  • the driving device 61 includes a driving motor 611, and no transmission gear is required.
  • the driving motor 611 is located in the neck support bracket 512 and is opposite to the mounting hole 576, and the axis of the driving motor 611 is the same as the axis of the connecting shaft 578.
  • the connecting shaft 578 is inserted into the mounting hole 576 and then installed on the rotating shaft of the driving motor 611 .
  • the connecting shaft 578 is a tubular structure, so that the wires can be passed through the connecting shaft 578 to be electrically connected to the second fan 546 .
  • the driving motor 611 drives the casing 544 to rotate in the first direction to a certain position
  • the driving motor 611 drives the casing 544 to rotate in the second direction opposite to the first direction.
  • the driving motor 611 drives the casing 544 to rotate forward to a certain position
  • the housing 544 is driven to reverse. Therefore, the second air outlet 550 can move back and forth, and the blown air covers a wider range.
  • the axis of the second fan 546 and the axis of the connecting shaft 578 are located on the same line.
  • the connecting shaft 578 is perpendicular to the neck support 512 , and the second fan 546 rotates around the axis of the connecting shaft 578 .
  • the axis of the second fan 546 and the axis of the connecting shaft 578 can also be located on two different straight lines, but are parallel to each other.
  • the first air outlet 504 is arranged on the upper side of the inner side of the first air outlet 514.
  • the first air outlet 504 can also be directly arranged on the top surface of the first air outlet 514, so that the first outlet The wind from the tuyere 504 can be blown toward the neck of the human body.
  • the size of the end of the first air outlet 504 close to the first fan 530 is larger than the size of the end away from the first fan 530 , thereby ensuring that the first air outlet 504 at the end away from the first fan 530 also has strong wind power.
  • the first air outlet 504 includes a plurality of through holes, and the plurality of through holes are arranged along the length direction of the first air outlet 514 . .
  • the diameter of the through hole closer to the first fan 530 is larger, and the diameter of the through hole farther from the first fan 530 is smaller, so as to increase the wind speed at the position farther away from the through hole of the first fan 530 .
  • the first air outlet 504 can also be an elongated air outlet, the first air outlet 504 extends along the length direction of the first air outlet 514 , and the width of the first air outlet 504 becomes more and more toward the first fan 530 . width.
  • first air inlets 532 are disposed on both sides of the first air outlet 514 .
  • the first air outlet 514 is provided with a protective cover 534 .
  • the protective cover 534 is arranged on the side of the first air outlet 514 away from the casing 544 .
  • the tuyere 532 prevents hair from being caught in the first fan 530 .
  • the first accommodating cavity 526 is located at the end of the neck support 512 , and the end has an outer side away from the neck of the human body and an inner side close to the neck of the human body.
  • the inner first air inlet 532 ie, the through hole
  • the housing 544 is in fluid communication with the gap, thereby preventing the housing 544 from affecting the air intake of the inner first air inlet 532 .
  • an accommodating cavity 516 and a partition plate 518 are also provided in the first air outlet 514 , and the air duct 502 and the accommodating cavity 516 are respectively provided on both sides of the partition plate 518 and separated by the partition plate 518 .
  • the accommodating cavity 516 is used for placing components such as a battery 560 and a circuit board 570 , and the battery 560 is used to supply power to the first fan 530 and the second fan 546 .
  • a power button 515 is provided on one of the first air outlets 514 of the neck-mounted fan. The power button 515 is used to control the opening, closing and wind speed of the first fan 530 and the second fan 546 .
  • the neck-mounted fan also has an indicator light and a charging interface, which will not be repeated here.
  • the partition plate 518 extends along the length direction of the first air outlet 514 and is used to define the shape of the air duct 502 , so that the air duct 502 gradually becomes larger from the end away from the first accommodating cavity 526 toward the first accommodating cavity 526 .
  • the first air outlet 514 is also provided with an air guide plate 517, the air guide plate 517 is perpendicular to the plate surface of the partition 518, and the air guide plate 517 extends along the length direction of the first air outlet 514 and is used to define the air duct 502.
  • the shape of the air duct 502 gradually increases from the end away from the first accommodating cavity 526 toward the first accommodating cavity 526 .
  • the first air outlet 504 at the end away from the first fan 530 also has a strong wind force.
  • the axis of the first fan 530 and the center of the first accommodating cavity 526 are eccentrically arranged, a gap is formed between the first fan 530 and the side wall of the first accommodating cavity 526 , and the gap gradually widens toward the rotation direction of the first fan 530 . . That is, the axis of the first fan 530 is not disposed in the center of the first receiving cavity 526 , but has a certain offset from the center of the first receiving cavity 526 .
  • an air flow is formed in the gap and pushes the air flow into the air duct 502 .
  • the width gradually increases, so that the airflow in the gap can be gradually strengthened along with the rotation direction of the first fan 530, thereby increasing the air output.
  • the first air outlet 514 is also provided with a wind cutting plate 519, the wind cutting plate 519 is arranged at the connection between the air duct 502 and the first accommodating cavity 526, and the wind cutting plate 519 is used to block the airflow from the air duct 502. back into the first receiving cavity 526 .
  • the wind cutting plate 519 prevents the air flow from forming a swirl at the joint position between the air duct 502 and the first receiving cavity 526, and the wind cutting plate 519 can cut off the air flow here.
  • the air flow in the air duct 502 is prevented from flowing back into the first accommodating cavity 526, so that the air flow can be smoothly discharged from the air outlet, further increasing the air outlet volume of the air outlet, and preventing the generation of noise.
  • the neck-mounted fan includes a battery 560 and a circuit board 570 , and both the battery 560 and the circuit board 570 are disposed in the accommodating cavity 516 .
  • the battery 560 and the circuit board 570 are both electrically connected to the first fan 530 and the second fan 546.
  • the battery 560 is used to provide power to the first fan 530 and the second fan 546.
  • the circuit board 570 is provided with a driving circuit and a driving circuit.
  • the outer surface of the neck-mounted bracket 512 is provided with a touch-sensitive operation area, and the position of the neck-mounted bracket 512 corresponding to the touch-sensitive operation area is provided with a touch-sensitive element electrically connected to the controller, and the touch-sensitive element is used for
  • the touch operation received by the touch operation area is detected, and the controller controls the turning on or off of the first fan 530 and the second fan 546 according to the touch operation, and/or adjusts the rotational speed of the first fan 530 and the second fan 546, This makes it more intelligent and more convenient to operate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种脖戴风扇(10、210、500),包括第一出风部(14、214、514)和第二出风部(16、216、540),第一出风部(14、214、514)设有第一收容腔(26、226、526)以及与第一收容腔(26、226、526)流体连通的第一进风口(32、232、532)和第一出风口(28、228、504),第一出风口(28、228、504)开设于脖戴风扇(10、210、500)的脖戴支架(12、212、512)上,第一收容腔(26、226、526)内设有第一风扇(30、230、530),第一风扇(30、230、530)运转从第一进风口(32、232、532)吸进空气产生的风经第一出风口(28、228、504)吹出。第二出风部(16、216、540)包括设有第二收容腔(42、242、542)的外壳(44、244、544),和容置在第二收容腔(42、242、542)内的第二风扇(46、246、546),外壳(44、244、544)设有与第二收容腔(42、242、542)连通的第二出风口(50、250、550),外壳(44、244、544)安装至脖戴支架(12、212、512)的侧壁上并能够相对于脖戴支架(12、212、512)转动以调节第二出风口(50、250、550)的位置。

Description

脖戴风扇 技术领域
本发明涉及风扇技术领域,尤其涉及一种脖戴风扇。
背景技术
近年来,市面上出现了各种各样的便携式风扇,其中一种为脖戴风扇。脖戴风扇通常包括佩戴于人体颈部的脖戴支架和与脖戴支架连接的风扇组件。脖戴支架形成有风道以及出风口。风扇组件运转产生强制气流,气流沿风道流动并最终由出风口吹向用户颈部。然而,现有脖戴风扇戴在用户颈部后,出风口出来的风大部分是吹向人体颈部,很少部分或几乎不能吹向人体其他部位,例如脸部或背部,因此无法满足对人体其他部位,例如用户脸部或背部吹风降温的需求。另一方面,现有脖戴风扇的脖戴支架通常具有两个支架部,围成适合于佩戴在颈部的U形。在不使用时,脖戴风扇占用较大空间,不方便用户携带或收纳。
发明内容
有鉴于此,本发明提供一种能解决至少一种上述缺陷的脖戴风扇。
一方面,本发明实施例提供一种脖戴风扇,包括第一出风部和第二出风部。所述第一出风部设有第一收容腔以及与所述第一收容腔流体连通的第一进风口和第一出风口,所述第一出风口开设于所述脖戴风扇的脖戴支架上,所述第一收容腔内设有第一风扇,所述第一风扇运转从所述第一进风口吸进空气产生的风经所述第一出风口吹出。所述第二出风部包括设有第二收容腔的外壳,和容置在所述第二收容腔内的第二风扇。所述外壳设有与所述第二收容腔流体连通的第二出风口,所述外壳安装至所述脖戴支架的侧壁上并能够相对于所述脖戴支架转动以调节所述第二出风口的位置。
在一实施例中,所述脖戴支架的侧壁上设有安装座,所述外壳安装至所述安装座上并能够相对于所述安装座转动。
在一实施例中,所述安装座包括一面向所述外壳的第一安装面,所述外壳包括一面向所述安装座的第二安装面,所述第一安装面和所述第二安装面之间设有一转动定位结构。
在一实施例中,所述转动定位结构包括若干定位槽和至少一弹性加载的定位凸起,所述若干定位槽设于所述第一安装面和第二安装面其中之一上并沿所述外壳的转动方向间隔设置,所述至少一弹性加载的定位凸起设于所述第一安装面和第二安装面其中另一上,所述至少一弹性加载的定位凸起用于与所述若干定位槽选择性地配合,以在所述外壳的转动方向上将所述第二出风部选择性地定位在若干不同的圆周位置。
在一实施例中,所述第一安装面和第二安装面中设有所述至少一弹性加载的定位凸起的那个安装面上设有一凹槽,所述凹槽具有一凹槽底部和一凹槽开口部,所述至少一弹性加载的定位凸起包括定位件和弹性件。所述定位件位于所述凹槽内并部分露出所述凹槽开口部以卡入其中一定位槽中。
所述弹性件设置于所述凹槽底部并对所述定位件施加朝向所述凹槽开口部的弹性偏压。
在一实施例中,上述至少一弹性加载的定位凸起包括一限位件,所述限位件设置于所述凹槽开口部以防止所述定位件脱出所述凹槽。在一实施例中,所述定位件呈球形或柱形。
在一实施例中,所述安装座包括一突出的中央部,所述第一安装面设置在所述中央部上,所述转动定位结构设置在所述中央部与所述外壳之间。
在一实施例中,所述中央部设有一安装孔,所述外壳通过一连接轴与所述安装孔转动配合,所述转动定位结构环绕所述安装孔设置。
在一实施例中,所述第一收容腔位于所述脖戴支架的端部,所述端部具有远离人体颈部的外侧和靠近人体颈部的内侧,所述安装座设置于所述内侧并包括一外环部和一中央部,所述中央部与所述外环部之间设有通孔,所述外环部与所述外壳之间形成一缝隙,所述第一出 风部的第一收容腔与所述通孔流体相通,所述通孔与所述缝隙流体相通;至少部分所述第一进风口设于所述外侧,所述缝隙作为另一部分所述第一进风口。
在一实施例中,所述外壳包括底壁、与所述底壁相对的顶壁及连接在所述底壁和所述顶壁之间的环形侧壁,所述底壁、环形侧壁和所述顶壁之间共同形成所述第二收容腔,所述顶壁上设有与所述第二收容腔流体连通的第二进风口,所述第二出风口设置在所述环形侧壁上;所述底壁或所述顶壁位于所述第二收容腔的一侧固定设置一轴管,所述第二风扇包括定子组件和转子组件,所述定子组件固定在所述轴管上,所述转子组件包括与所述定子组件磁性配合的永磁体以及相对于所述永磁体固定的扇轮;所述底壁背离所述第二收容腔的另一侧与所述安装座的中央部可转动地连接。例如,所述底壁背离所述第二收容腔的另一侧设置一连接轴,所述连接轴与所述安装座的中央部可转动地连接。
在一实施例中,所述安装座包括一面向所述外壳的第一安装面,所述外壳包括一面向所述安装座的第二安装面,所述第一安装面与所述第二安装面紧邻。
本发明的上述实施例提供了一种脖戴风扇,其具有用于为颈部降温的第一出风部和用于为脸部或背部降温的第二出风部,且第二出风部的出风口可以调节角度使得第二出风部的风可以吹向人脸的不同部位,满足用户的多种降温需求。在一些实施例中,脖戴支架的侧壁上设有安装座,第二出风部通过安装座安装至脖戴支架上,安装座具有一定的厚度,增加了其结构和安装强度。在一些实施例中,第二出风部的外壳与安装座的安装面之间紧邻,两者之间的连接轴的力臂减小,降低了连接轴在使用过程中断裂的风险。在一些实施例中,出风部的外壳与安装座之间设置有转动定位结构,可以选择性地将出风部定位在若干不同的圆周位置,方便用户调节并定位出风口位置,并且在调节过程中能够给用户提供角度感知反馈。
另一方面,本发明实施例提供一种脖戴风扇,包括第一出风部和第二出风部。所述第一出风部设有第一收容腔以及与所述第一收容腔流体连通的第一进风口和第一出风口,所述第一出风口开设于所述脖戴风扇的脖戴支架上,所述第一收容腔内设有第一风扇,所述第一风扇运转从所述第一进风口吸进空气产生的风经所述第一出风口吹出。所述脖戴支架的侧壁上固定设有轴管。所述第二出风部包括设有第二收容腔的外壳,和容置在所述第二收容腔内的第二风扇。所述外壳设有与所述第二收容腔流体连通的第二进风口和第二出风口,所述第二风扇运转时从所述第二进风口吸进空气产生的风从所述第二出风口吹出。所述第二风扇连接在所述轴管上,所述外壳能够相对于所述脖戴支架转动以调节所述第二出风口的位置。
在一实施例中,所述外壳包括端壁和环形侧壁,所述端壁和所述环形侧壁共同定义所述第二收容腔,所述第二进风口设置在所述端壁上,所述第二出风口设置在所述环形侧壁上。在一实施例中,所述脖戴支架上固定设有一安装座,所述外壳可转动地连接至所述安装座。在一实施例中,所述安装座突出于所述脖戴支架的表面。
在一实施例中,所述安装座包括一外环部和一中央部,所述轴管设置在中央部上。
在一实施例中,所述外壳通过一支撑架可转动地连接至所述安装座,所述支撑架与所述安装座固定连接,所述外壳可转动地连接至所述安装架并罩设在所述支撑架外围。
在一实施例中,所述第二风扇定义一轴向和一径向,所述支撑架的轴向内端与所述安装座固定连接,所述支撑架的轴向外端与所述外壳可转动地连接。
在一实施例中,所述支撑架的轴向外端的中央部位设有一安装台,所述外壳可转动地连接至所述安装台。
在一实施例中,所述安装台和所述外壳其中之一设有弹性加载的定位凸起,所述安装台和所述外壳其中另一设有若干定位槽,所述弹性加载的定位凸起用于选择性地与所述定位槽配合。
在一实施例中,所述弹性加载的定位凸起设置在所述外壳的端壁内侧,所述端壁内侧形成一具有凹槽底部和凹槽开口部的凹槽,所述弹性加载的定位凸起包括定位件、弹性件和限位件。所述定位件位于凹槽内并部分露出所述凹槽,以卡入其中一定位槽。弹性件设置于凹槽底部并对定位件施加朝向凹槽开口部的弹性偏压。限位件设置于凹槽开口部以防止定位件 脱离凹槽。
在一实施例中,所述凹槽由一连接至端壁内侧的筒状元件形成,该筒状元件面向支撑架的一端为开口端。
在一实施例中,所述支撑架的轴向内端设有一基座,所述基座与所述安装座的外环部固定连接。在一实施例中,所述支撑架包括若干支撑条,每个支撑条位于扇轮外侧并连接于基座和安装台之间。在一实施例中,每个支撑条具有一轴向延伸部和一径向延伸部,所述轴向延伸部从基座沿轴向延伸,所述径向延伸部从轴向延伸部的轴向外端沿径向向外延伸至与安装台固定连接。
在一实施例中,所述脖戴支架的侧壁上设有驱动装置,所述外壳与所述脖戴支架转动连接,所述驱动装置用于驱动所述外壳在所述脖戴支架上转动。
在一实施例中,所述驱动装置包括驱动电机,所述驱动电机的转动轴与所述外壳连接。
本发明的上述实施例提供了一种脖戴风扇,其具有用于为颈部降温的第一出风部和用于为人体其他部位,例如脸部或背部降温的第二出风部,且第二出风部的出风口可以调节角度使得第二出风部的风可以吹向人脸或背部的不同部位,满足用户的多种降温需求。在一些实施例中,第二出风部的第二风扇是连接在脖戴支架侧壁的安装座上,因此调节第二出风部的出风口角度时,只需要转动第二出风部的外壳,而不需要转动风扇,提高了第二出风部的可靠性和使用寿命。在一些实施例中,设置有旋转定位结构,可以选择性地将第二出风部定位在若干不同的圆周位置,方便用户调节并定位出风口位置,并且在调节过程中能够给用户提供角度感知反馈。
附图说明
图1为本发明一实施例的脖戴风扇的正视图;
图2为图1中所示脖戴风扇在一个角度的立体分解示意图;
图3为图1中所示脖戴风扇在另一个角度的立体分解示意图;
图4为图2中所示脖戴风扇的一出风部位在一个角度的立体分解示意图;
图5为图4中所示脖戴风扇的该出风部位在另一个角度的立体分解示意图;
图6为图3中所示脖戴风扇圈B部分的放大图;
图7为图1中所示脖戴风扇沿线A-A的剖视图;
图8为图7中圈C部分的放大图;
图9为本发明另一实施例的脖戴风扇的立体组合示意图;
图10是图9的脖戴风扇的正视图,显示其对称轴D和转动轴X;
图11是图9的脖戴风扇的侧视图,显示其对称轴D和转动轴X,其中对称轴D和转动轴X在前后方向上间隔且相互平行;
图12是图9的脖戴风扇在一个角度的立体分解示意图;
图13是图9的脖戴风扇在另一角度的立体分解示意图;
图14是图12的脖戴风扇的一出风部在一个角度的立体分解示意图;
图15是图14的该出风部在另一个角度的立体分解示意图;
图16是图15的出风部的外壳另一个角度的立体分解示意图;
图17是图12的脖戴风扇圈E部分的放大图;
图18是图9的脖戴风扇在转动折叠过程中的示意图;
图19是图9的脖戴风扇在转动折叠到收纳状态的示意图;
图20是图10的脖戴风扇沿对称轴D所做的剖视图;
图21是图20的脖戴风扇圈F部分的放大图;
图22是本发明又一实施例的脖戴风扇的立体结构示意图;
图23是图22中脖戴风扇的纵截面结构示意图;
图24是图22中脖戴风扇的拆分结构示意图之一;
图25是图22中脖戴风扇的拆分结构示意图之二;
图26是图22中脖戴风扇的第二出风部的立体示意图。
具体实施方式
下面,结合附图以及具体实施方式,对本发明做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
需要说明的是,本发明实施例中所有方向性指示(诸如上、下、左、右、前、后、内、外、顶部、底部……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
还需要说明的是,当元件被称为“固定于”或“设置于”另一个元件上时,该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件,它可以是直接连接另一个元件或者可能同时存在居中元件。
图1为本发明一实施例的脖戴风扇10的正视图。图2和图3为脖戴风扇10在不同角度的立体分解示意图。图4和图5是其中一出风部在不同角度的立体分解示意图。图6是图3的局部放大示意图。图7和图8是剖视图,显示出风部的具体内部结构。
参阅图1至图8,本发明一实施例的脖戴风扇10包括脖戴支架12、第一出风部14和第二出风部16。
脖戴支架12具有适合于佩戴在人体颈部的弯曲形状,内部设有用于容纳电池和其他元件的空间,以及供气流流动的流道。在所示的实施例中,脖戴支架12具有可相互转动的两个支架部18、20,所述两个支架部18、20利用一转动结构22相连。该转动结构22的构造和功能将在后面(结合图9至图21)详细描述。在其他实施例中,脖戴支架12也可以不设置转动结构22,即不具有相互转动的功能。
在所示的实施例中,脖戴支架12的两个支架部18、20上都设有第一出风部14。在其他实施例中,也可以仅在其中一个支架部上设置第一出风部14。脖戴支架12具有两个端部24,每个端部24面向人体颈部的内侧都设有该第二出风部16。在其他实施例中,也可以只在其中一个端部24设有第二出风部16。而且,第二出风部16也可以设置在端部24背向人体颈部的外侧。虽然在所示的实施例中,是以第二出风部16设置在端部24为例进行说明,但在一些其他实施例中,第二出风部16也可以不设置在端部24,而是设置在脖戴支架12的靠中间位置。当设置在端部24时,第二出风部16可以对人脸吹风降温;当设置在靠中间位置时,第二出风部16可以对人体背部吹风降温。
参考图2和图3,第一出风部14设有第一收容腔26以及与第一收容腔26流体连通的第一出风口28。第一收容腔26内设有第一风扇30,第一出风口28开设于脖戴风扇10的脖戴支架12上。脖戴支架12的每个端部24背向人体颈部的一侧都设有第一进风口32,第一进风口32与第一收容腔26流体连通。如此,第一风扇30运转时,从第一进风口32抽进空气,产生的风流经支架部内的流道再经第一出风口28吹出。第一出风口28沿着支架部18、20的延伸方向设置多个,使第一风扇30产生的风吹向人体颈部。
脖戴支架12的端部24内固定设置一轴管34。第一风扇30包括一定子组件36和一转子组件38。定子组件36固定在轴管34上,用于通电产生磁场。转子组件38包括一扇轮38A,扇轮38A内侧固定安装有磁铁等永磁体。转子组件38还包括相对于扇轮38A固定的转轴40,转轴40可转动地支撑于轴管34内。定子组件36通电产生磁场,磁性驱动永磁体转动,从而带动扇轮38转动。
同时参考图4和图5,第二出风部16包括设有第二收容腔42的外壳44,以及容置在所第二收容腔42内的第二风扇46。外壳44设有与第二收容腔42流体连通的第二进风口48和第二出风口50。外壳44安装至脖戴支架12的端部24,并能够相对于端部24转动以调节第二出风口50的位置。
具体而言,在所示的实施例中,所述外壳44包括底壁52、与底壁52相对的顶壁56及 连接在底壁52和顶壁56之间的环形侧壁58。底壁52、环形侧壁58和顶壁56之间共同形成所述第二收容腔42,上述第二进风口48设置在顶壁56上,上述第二出风口50设置在环形侧壁58上。底壁52或顶壁56位于所述第二收容腔42的一侧固定设置一轴管60。在所示的实施例中,顶壁56和环形侧壁58一体成型为一面罩54,面罩54固定连接至底壁52。第二风扇46包括定子组件62及转子组件64。定子组件62固定在轴管60外侧。转子组件64包括与定子组件62磁性驱动配合的永磁体64A,以及相对于永磁体64A固定的扇轮64B。永磁体64A可为磁铁,例如永磁环,设置在扇轮64B内侧。转子组件64还包括相对于扇轮64B固定的转轴65,转轴65可转动地支撑于轴管60内。定子组件62通电产生磁场,磁性驱动永磁体64A转动,进而带动扇轮64B转动。用户拨动面罩54,即可调节第二出风口48在外壳44转动方向上的位置,即调节第二出风口48的吹风角度。在本实施例中,第二出风部16主要是为了对着脸部吹风,因此可以通过拨动面罩54,调节第二出风部16的出风角度,使风吹向人脸的不同部位。在另一些实施例中,轴管60也可以设置在端壁56位于第二收容腔42的一侧。优选地,所述第二风扇46为离心风扇,所述外壳44呈圆柱形,所述轴管60与所述外壳44的轴心偏心设置,从而使得所述第二风扇46是偏心设置在所述外壳44的第二收容腔42内。
同时参考图6,在所述的实施例中,脖戴支架12的侧壁上设有安装座66,第二出风部16的外壳44可转动地安装至安装座66上。安装座66可以是脖戴支架12一体成型的一部分,也可以是安装至脖戴支架12的单独部件,本发明对此不做限制。
在所示的实施例中,安装座66突出于脖戴支架12的表面设置,使得安装座66具有一定的厚度,增加安装座66结构强度的同时有利于减小整个脖戴支架侧壁的厚度。但在其他实施例中,安装座66也可以与脖戴支架12的表面平齐或者相对于脖戴支架12的表面内凹。在所示的实施例中,安装座66的外周面上环绕形成有凹槽(参阅图7),使得安装座66形成为两端大中间小的类似沙漏的结构,即安装座66两端的横截面尺寸大于中间部分的横截面尺寸。安装座66包括面向外壳44的第一安装面68,外壳44包括面向安装座66的第二安装面70。当外壳44可转动地安装至安装座66时,第一安装面68紧邻第二安装面70。本实施例中所称的紧邻是指两者接触或者相距一较小的距离,比如该距离可以在0.8-2.5mm的范围内选择。
在所示的实施例中,安装座66包括一外环部72和一中央部74。外环部72和中央部74从脖戴支架12的表面突起,都具有一定的厚度,因此可以加强第二出风部16的安装强度。上述第一安装面68设置在中央部74上。中央部74设有一安装孔76,外壳44通过一连接轴78与安装孔74转动配合。在所示的实施例中,连接轴78固定连接在外壳44的底壁52上。连接轴78内设有一螺孔80,连接轴78插入中央部74的安装孔76后,一螺栓82从中央部74另一侧(位于第一收容腔26的这一侧)拧入螺孔80,防止连接轴78从安装孔76脱离。连接轴78的外径稍小于安装孔76的孔径,因此连接轴78可在安装孔76内转动。由于外壳44的第二安装面70与中央部74的第一安装面68紧邻,连接轴78位于两个安装面68、70之间的部分很短,即力臂很短,因此用户在正常拨动外壳44或外壳44遭受意外撞击时,连接轴78上承受的偏转力矩会很小,因此极大地降低连接轴78断裂的风险。如果不追求该较小的偏转力矩,或者有其他设计可以降低连接轴断裂的风险,第一安装面68和第二安装面78也可以不设置为紧邻。
在上述实施例中,连接轴78是固定在底壁52上的元件。底壁52两侧的连接轴78和轴管60可以是一个整体的管状元件,底壁52固定安装在该管状元件上。连接轴78和轴管60也可以是与底壁52一体成型的元件。在其他实施例中,连接轴78可以是中央部74上的元件,即连接轴78可转动地插入外壳44中。或者,螺栓82也作为连接轴的一部分。因此,外壳44与中央部74之间的连接轴的形式多样,不限于附图中所示的结构。
在所示的实施例中,中央部74与外环部72之间设有通孔84。第二出风部16安装后,外环部72与外壳44的底壁52之间形成一环形的缝隙86。第一出风部14的第一收容腔26与通孔84流体相通,通孔84与缝隙86流体相通,缝隙86作为第一出风部14的另一部分第 一进风口32。这样,第一出风部14除了在脖戴支架12的端部24的外侧形成第一进风口32外,还在内侧设有第一进风口32,增加了进风量,出风量也随之增加。或者说,第一出风部14的至少部分第一进风口32设于所述外侧,而缝隙86作为另一部分第一进风口32。当然,在其他实施例中,也可以仅在端部24外侧设置第一进风口32,而在端部24内侧不设置第一进风口32。
同时参考图7和图8,在所示的实施例中,第一安装面68和第二安装面70之间设有一转动定位结构,环绕中央部74的安装孔76设置。该转动定位结构可以选择性地将第二出风部16定位在若干不同的圆周位置。在所示的实施例中,转动定位结构包括若干定位槽88和至少一弹性加载的定位凸起90。若干定位槽88设于外壳44的底壁52的第二安装面70上并沿外壳44的转动方向间隔设置,弹性加载的定位凸起90设于中央部74的第一安装面68上。弹性加载的定位凸起90用于与所述若干定位槽88选择性地配合,以在外壳44的转动方向上将第二出风部16选择性地定位在若干不同的圆周位置。在所示的实施例中,定位槽88沿转动方向均匀间隔设置。定位槽88的数量和间距根据设计需求而定,定位槽88的数量增加可对应带来更多级的角度定位,为用户带来更多选择和更精细的角度调节。所示的实施例中包括一个弹性加载的定位凸起90,但在其他实施例中,也可以包含一个以上的弹性加载的定位凸起90。
第一安装面68上设有一凹槽92,所述凹槽92具有一凹槽底部94和一凹槽开口部96。至少一弹性加载的定位凸起90包括定位件98、弹性件100和限位件102。定位件98位于凹槽92内并部分露出所述凹槽开口部96,即部分超出第一安装面68,以卡入其中一定位槽88。弹性件100设置于凹槽底部94并对定位件98施加朝向凹槽开口部96的弹性偏压。限位件102设置于凹槽开口部96以防止定位件98脱离凹槽92。当定位件98面对的是底壁52的平表面部分时,则定位件98被该平表面部分压入凹槽92内,弹性件100被压缩。当外壳44转动至其中一定位槽88与定位件98对齐时,定位件98在弹性件100的弹性恢复力作用下被推入定位槽88,形成外壳44和安装座66之间的定位。继续转动外壳44时,底壁52的定位槽88的边缘滑过定位件98的弧形表面,将定位件98压入凹槽92内。具体地,定位件98面向第二安装面70的一面为弧形表面,其可以为端面呈弧形表面的柱状体或球形体,本实施例中定位件98为一金属球。弹性件100的例子可以是压缩弹簧。限位件102允许定位件98露出凹槽92但阻止定位球98完全脱离凹槽92,例如,可以是一个具有内孔且内孔直径小于定位件98直径的元件,例如环形件。在一些实施例中,也可以不设置限位件102。弹性件100与定位件98抵接的一端同时与定位件98也固定连接在一起,如此也可以防止定位件98完全脱离于凹槽92。
虽然在上述实施例中,定位槽88设置在第二安装面70上,定位凸起90设置在第一安装面68上,但在其他实施例中,定位槽88和定位凸起90的位置可以互换。因此,定位槽88设置在第一安装面68和第二安装面70其中之一上,定位凸起90设置在第一安装面68和第二安装面70其中另一上。
本发明的上述实施例提供了一种脖戴风扇,其具有用于为颈部降温的第一出风部和用于为人体其他部位,例如脸部或背部降温的第二出风部,且第二出风部的出风口可以调节角度使得第二出风部的风可以吹向人脸或背部的不同部位,满足用户的多种降温需求。在一些实施例中,第二出风部通过安装座安装至脖戴支架上,安装座具有一定的厚度,增加了其结构和安装强度。在一些实施例中,第二出风部的外壳与安装座的安装面之间紧邻,两者之间的连接轴的力臂减小,降低了连接轴在使用过程中断裂的风险。在一些实施例中,出风部的外壳与安装座之间设置有转动定位结构,可以选择性地将出风部定位在若干不同的圆周位置,方便用户调节并定位出风口位置,并且在调节过程中能够给用户提供角度感知反馈。
图9至图21例示了本发明另一实施例的脖戴风扇210。
参阅图9至图11,本实施例的脖戴风扇210包括脖戴支架212、第一出风部214和第二出风部216。
脖戴支架212具有适合于佩戴在人体颈部的弯曲形状,内部设有用于容纳电池和其他元件的空间,以及供气流流动的流道。在所示的实施例中,脖戴支架212具有可相互转动的两个支架部218、220,所述两个支架部218、220利用一转动结构22相连。两个支架部218、220关于一对称轴D对称。转动结构22定义一转动轴X,对称轴D和转动轴X间隔且相互平行。在其他实施例中,脖戴支架212也可以不设置转动结构22,即不具有相互转动的功能。
在所示的实施例中,脖戴支架212的两个支架部218、220上都设有第一出风部214。在其他实施例中,也可以仅在其中一个支架部上设置第一出风部214。脖戴支架212具有两个端部224,每个端部224面向人体颈部的内侧都设有该第二出风部216。在其他实施例中,也可以只在其中一个端部224设有第二出风部216。而且,第二出风部216也可以设置在端部224背向人体颈部的外侧。同样,在其他实施例中,第二出风部216也可以不设置在端部224。
同时参考图12和图13,第一出风部214设有第一收容腔226以及与第一收容腔226流体连通的第一出风口228。第一收容腔226内设有第一风扇230,第一出风口228开设于脖戴风扇210的脖戴支架212上。脖戴支架212的每个端部224背向人体颈部的一侧都设有第一进风口232,第一进风口232与第一收容腔226流体连通。如此,第一风扇230运转时,从第一进风口232抽进空气,产生的风流经支架部内的流道再经第一出风口228吹出。第一出风口228可沿着支架部218、220的延伸方向设置多个,使第一风扇230产生的风吹向人体颈部。
脖戴支架212的端部224内固定设置一轴管234。第一风扇230包括一定子组件236和一转子组件238。定子组件236固定在轴管234上,用于通电产生磁场。转子组件238包括一扇轮238A,扇轮238A内侧固定安装有磁铁等永磁体。转子组件238还包括相对于扇轮238A固定的转轴240,转轴240可转动地支撑于轴管234内。定子组件236通电产生磁场,磁性驱动永磁体转动,从而带动扇轮238A转动。
同时参考图14至图16,第二出风部216包括设有第二收容腔242的外壳244,以及容置在所第二收容腔242内的第二风扇246。外壳244设有与第二收容腔242连通的第二进风口248和第二出风口250。外壳244安装至脖戴支架212的端部224,并能够相对于端部224转动以调节第二出风口250的位置。
具体而言,在所示的实施例中,外壳244包括端壁256和环形侧壁258,上述第二进风口248设置在端壁256上,上述第二出风口250设置在环形侧壁258上。第二风扇246包括定子组件262及转子组件264。转子组件264包括与定子组件262磁性驱动配合的永磁体264A,以及相对于所述永磁体264A固定的扇轮264B。永磁体264A可为磁铁,例如永磁环,设置在扇轮264B内侧。转子组件264还包括相对于扇轮264B固定的转轴265。定子组件262通电产生磁场,磁性驱动永磁体264A转动,进而带动扇轮264B转动。用户拨动外壳244,即可调节第二出风口248在转动方向上的位置,即调节第二出风口248的吹风角度。在所示的实施例中,第二出风部216主要是为了对着脸部吹风,因此可以通过拨动外壳244,调节第二出风部216的出风角度,使风吹向人脸的不同部位。
同时参考图17,在所示的实施例中,脖戴支架212的侧壁上设有安装座266,第二出风部216的外壳244可转动地安装至安装座266上。安装座266可以是脖戴支架12一体成型的一部分,也可以是安装至脖戴支架212的单独部分,本发明对此不做限制。
在所示的实施例中,安装座266突出于脖戴支架212的表面设置,使得安装座266具有一定的厚度,增加安装座266结构强度的同时有利于减小整个脖戴支架侧壁的厚度。但在其他实施例中,安装座266也可以与脖戴支架212的表面平齐或者相对于脖戴支架212的表面内凹。在所示的实施例中,安装座266的外周面上环绕形成有凹槽(参阅图10),使得安装座266形成为两端大中间小的类似沙漏的结构,即安装座66两端的横截面尺寸大于中间部分的横截面尺寸。
安装座266上固定设置有轴管260,第二风扇246的定子组件262固定安装在轴管260外侧。第二风扇246的转子组件264的转轴265可转动地支撑于轴管260内。也就是说,本 实施例中,第二出风部216的第二风扇246是安装在安装座266上,因此是安装在脖戴支架212上的,用户转动外壳244调节出风角度时,第二风扇246不会被转动,因此提高了结构的可靠性和使用寿命。在所示的实施例中,安装座266包括一外环部272和一中央部274。外环部272和中央部274从脖戴支架212的表面突起,轴管260设置在中央部274上,在一些实施例中,外壳244可转动地连接至所述外环部272。
参考图15至图17,第二出风部216的外壳244通过一支撑架300可转动地安装至安装座266。支撑架300固定在安装座266上,因此也可以视为安装座266的一部分。外壳244可转动地连接至支撑架300并罩设在支撑架300外围。第二风扇246定义一轴向,该支撑架300的轴向内端与安装座266固定连接,轴向外端与外壳244可转动地连接。在所示的实施例中,支撑架300的轴向外端的中央部位设有一安装台302,外壳244的端壁256设有连接孔310,一锁固件312穿过外壳224的连接孔310后与安装台302固定连接。在所示的实施例中,安装台302的中部沿轴向向外突设一连接管304,连接管304内具有螺孔306,锁固件312为一螺丝312,其穿过外壳244的连接孔310后拧入连接管304的螺孔306中固定。锁固件312具有一头部314和从头部314延伸的杆部315,连接孔310的孔径小于头部314的直径但大于杆部315的直径。因此,锁固件312限制外壳244沿轴向脱离支撑架300,但允许外壳244绕轴向转动。
参考图15和图16,安装台302环绕连接管304的环形区域设有环绕连接管304的若干定位槽308。外壳244的端壁256的内侧设有一弹性加载的定位凸起320。在转动外壳244时,该定位凸起320用于与若干定位槽308选择性地配合以在外壳244的转动方向上将外壳244的第二出风口250选择性地定位在若干不同的圆周位置。在所示的实施例中,定位槽308沿转动方向均匀间隔设置。定位槽308的数量和间距根据设计需求而定,定位槽308的数量增加可对应带来更多级的角度定位,为用户带来更多选择和更精细的角度调节。
外壳244的端壁256的内侧设有一凹槽316,定位凸起320收容在该凹槽316内。凹槽316具有一凹槽底部和一与所述凹槽底部相对的凹槽开口部318。在所述的实施例中,凹槽316由一连接至端壁256内侧的筒状元件形成,该筒状元件面向支撑架300的一端为开口端,形成所述凹槽开口部318。定位凸起320包括定位件322、弹性件324和限位件326。定位件322位于凹槽316内并部分露出所述凹槽316,以卡入其中一定位槽308。弹性件324设置于凹槽底部并对定位件322施加朝向凹槽开口部318的弹性偏压。限位件326设置于凹槽开口部318以防止定位件322脱离凹槽316。当定位件322面对的是安装台302的平表面部分时,则定位件322被该平表面部分压入凹槽316内,弹性件324被压缩。当外壳244转动至其中一定位槽308与定位件322对齐时,定位件322在弹性件324的弹性恢复力作用下被推入定位槽308,形成外壳244和支撑架300之间的定位。继续转动外壳244时,安装台302的定位槽308的边缘滑过定位件322的弧形表面,将定位件322压入凹槽316内。具体地,定位件322面向安装台302的一面为弧形表面,其可以为端面呈弧形表面的柱状体或球形体,本实施例中定位件322为一金属球。弹性件324的例子可以是压缩弹簧。限位件326允许定位件322露出凹槽316但阻止定位球322完全脱离凹槽316,例如,可以是一个具有内孔且内孔直径小于定位件322直径的元件,例如环形件。在另一些实施例中,也可以不设置限位件326。弹性件324与定位件322抵接的一端同时与定位件322也固定连接在一起,如此也可以防止定位件322完全脱离于凹槽316。
虽然在上述实施例中,定位槽308设置在安装台上,定位凸起320设置外壳244的端壁256内侧,但在其他实施例中,定位槽308和定位凸起320的位置可以互换。因此,定位槽308设置安装台302和外壳244的端壁256其中之一上,定位凸起320设置在安装台302和外壳244的端壁256其中另一上。
通过在外壳244与支撑架300之间设置弹性加载的定位凸起与定位槽的转动定位结构,可以选择性地将外壳244的第二出风口250定位在若干不同的圆周位置,方便用户调节并定位出风口位置,并且在调节过程中能够给用户提供角度感知反馈。
支撑架300的轴向内端设有一基座350,基座350呈环形并与安装座266的外环部272固定连接。支撑架300包括若干支撑条352,每个支撑条352位于扇轮264B外侧并连接于基座350和安装台302之间,每个支撑条352具有一轴向延伸部354和一径向延伸部356,轴向延伸部354从基座350沿轴向延伸,径向延伸部356从轴向延伸部354的轴向外端沿径向延伸至与安装台302固定连接。也就是说,这些支撑条352共同将安装台302支撑在扇轮264B的轴向外端之外。在所示的实施例中,设置了四个沿圆周方向上均匀布置的四个支撑条352,但在其他实施例中可以设置多余或少于4个的支撑条352。在所示的实施例中,所述轴向延伸部354与所述基座350连接的位置更靠近所述基座350的内缘(参阅图15),所述基座350的外缘与所述安装座266的外缘平滑连接,所述外壳244朝向所述基座350的一端的外缘与所述基座266的外缘平齐,从而使得所述基座350、外壳22和安装座266之间平滑连接(参阅图10)。
在所示的实施例中,安装座266的中央部274与外环部272之间设有通孔284,通孔284环绕轴管260设置。第一出风部214的第一收容腔226与通孔284流体相通。环形侧壁258的轴向内端与基座350在轴向上可形成一缝隙,通孔284与该缝隙流体相通,该缝隙可以作为第一出风部214的另一部分第一进风口232。这样,第一出风部214除了在脖戴支架212的端部224的外侧形成第一进风口232外,还在内侧设有第一进风口232,增加了进风量,出风量也随之增加。或者说,第一出风部214的至少部分第一进风口232设于所述外侧,而环形侧壁258与基座350之间的缝隙作为另一部分第一进风口232。在一些实施例中,当环形侧壁258轴向内端(即端面)与脖戴支架212的内侧表面之间未设有基座350时,环形侧壁258的轴向内端(即端面)与脖戴支架212的内侧的表面之间形成缝隙,通孔284与缝隙流体相通,第一出风部214的至少部分第一进风口232设于脖戴支架212的外侧,缝隙作为另一部分第一进风口232。
当然,在其他实施例中,也可以仅在端部224外侧设置第一进风口232,而在端部224内侧不设置第一进风口232。
虽然本实施例中第二出风部216的外壳244通过支撑架300可转动地连接至安装座266,在其他实施例中,外壳244也可以直接连接至安装座266,而不用设置支撑架300。也就是说,此处所说的可转动的连接包括直接或间接的连接。
下面详细介绍转动结构22。
如图10至图13,脖戴支架212包括关于对称轴D对称的两个支架218、220,转动结构22可转动地连接在两个支架部218、220之间。转动结构22包括第一转动部421和第二转动部422,第一转动部421与其中一个支架部220固定连接,第二转动部422与另外一个支架部218固定连接,第一转动部421和第二转动部422可绕转动轴X转动地连接,该转动轴X与对称轴D间隔且相互平行。第一转动部421上设有定位槽411,第二转动部422上设有弹性加载的定位凸起420,两个支架部218、220相对转动时,弹性加载的定位凸起420能够选择性地卡入定位槽411内。
本实施例通过在两个支架部218、220之间设置转动结构22,转动结构22的第一转动部421和第二转动部422可转动地连接,使得两个支架部218、220能够相对转动。当用户使用完后,通过转动两个支架部218、220能够使得该脖戴风扇被折叠(即脖戴风扇由图9所示的形态变成图18所示的状态,最终变成图19所示的形态),从而方便用户携带或收纳;当用户需要使用时,通过反向转动两个支架部218、220能够使得该脖戴风扇被打开(即脖戴风扇由图19所示的形态变成图9所示的形态),从而方便用户佩戴使用。而且,通过弹性加载的定位凸起420和定位槽411的相互配合进行定位,用户在转动两个支架部218、220时能够感知转动角度,且转动完成后两个支架部218、220的角度不容易轻易发生改变,方便用户的使用,增加了该脖戴风扇的实用性能,提升了用户的使用体验。
在本实施例中,第一转动部421和第二转动部422沿转动轴X层叠设置(第一转动部421和第二转动部422的上下位置关系可以调换),转动结构22的转动轴X与两个支架部218、 220的对称轴D相互平行(即从图18及图19中看,两个支架部218、220能够沿箭头S所指的方向旋转折叠;两个支架部218、220在相对转动时,两个支架部218、220的侧壁能够相互靠近或远离)。
具体地,在本实施例中,两个支架部218、220通过转动结构22连接形成U形结构,两个支架部218、220之间形成有便于该脖戴风扇佩戴在使用者脖颈上的佩戴腔。
如图12、图13、图20和图21,第一转动部421和第二转动部422连接成使得只允许第一转动部421和第二转动部422之间绕所述转动轴X的相对转动而不允许第一转动部421和第二转动部422之间沿所述转动轴X的方向直线运动。具体的,在本实施例中,第一转动部421上设有凸轴412,第二转动部422上设有旋转孔424,凸轴412插入到旋转孔424内并能够在旋转孔424内转动,从而实现第一转动部421和第二转动部422可转动地连接。转动结构22还包括锁固件423,锁固件423的一端固接于凸轴412,锁固件423的另一端位于第二转动部422远离第一转动部421的一侧,锁固件423另一端的径向尺寸大于旋转孔423的径向尺寸。
具体地,在本实施例中,锁固件423沿径向向外凸出设有凸缘431,凸缘431的径向尺寸大于旋转孔424的径向尺寸,凸缘431与第二转动部422相抵靠,锁固件423用于防止第一转动部421和第二转动部422相互脱离。锁固件423可以为螺钉、铆钉、销钉等结构,在此不做限定。
弹性加载的定位凸起420包括弹性件430、定位件432和限位件434。定位件432位于第二转动部422的一凹槽428内并部分露出该凹槽428。该凹槽428在平行于转动轴的方向上具有一凹槽底部428A和一凹槽开口部428B。弹性件设置于所述凹槽底部428A并对定位件432施加朝向凹槽开口部428B的弹性偏压。限位件434设置于所述凹槽开口部428B以防止定位件脱出凹槽428。两个支架部218、220相对转动时,定位件432能够在弹性件430的弹性偏压力的驱动下卡入定位槽411内。
具体地,定位件432面向第一转动部421的一面为弧形表面,定位件432可以为端面呈弧形表面的柱状体或球形体,本实施例中定位件432为一金属球。弹性件430的例子可以是压缩弹簧。限位件434允许定位件432露出凹槽428但阻止定位件432完全脱离凹槽428,例如,可以是一个具有内孔且内孔直径小于定位件432直径的元件,例如环形件,定位件432通过内孔部分露出凹槽428。在另一些实施例中,也可以不设置限位件434。弹性件430与定位件432抵接的一端同时与定位件432也固定连接在一起,如此也可以防止定位件432完全脱离于凹槽428。
在本实施例中,定位槽411的数量为多个,多个定位槽411沿第一转动部421的周向均匀间隔设置。但在其他实施例中,也可以不均匀设置。
具体地,在本实施例中,两个支架部218、220相对转动时,定位件432的位置能够在卡入定位槽411内和位于相邻的两个定位槽411之间进行转换。当定位件432位于相邻的两个定位槽411之间时(即定位件432与第一转动部421的外壁相抵靠),定位件432在凹槽428内朝向远离第一转动部421的一侧回缩(即在图21中看定位件432向上移动),此时弹性件430被压缩蓄力;当定位件432的位置移动至与定位槽411相对应时,定位件432在弹性件421的驱动下卡入定位槽411内(即定位件432在弹性件421的回复力的驱动下卡入定位槽411内),从而固定两个支架部218、220之间的转动角度。定位件432的位置在卡入定位槽411内和位于相邻的两个定位槽411之间不断进行变换时,能够为用户提供旋转时的阻尼手感,使用户在转动两个支架部218、220时能够感知转动角度,提升用户的使用体验。
在本实施例中,转动结构22为圆柱形结构。转动结构22相较于支架部218、220朝向支架部的前侧凸出。支架部的前侧是指脖戴风扇佩戴在颈部时朝向上方的一侧为前侧,朝向下方的一侧为后侧。两个支架部218、220分别设有相互面对的连接边440,以及位于连接边440两侧的前侧边442和后侧边444。与第一转动部421固定连接的其中一支架部220设有与第二转动部422外轮廓匹配的第一弧形缺口446,第一弧形缺口446位于所述其中一支架部220 的连接边440与相邻的前侧边442相接的位置。与第二转动部422固定连接的另一支架部218设有与第一转动部421外轮廓匹配的第二弧形缺口448,第二弧形缺口448位于所述另一支架部220的连接边440与相邻的前侧边442相接的位置。与转动结构22居中设置相比(即转动结构22设置在前后方向的中间位置,使得转动轴X与对称轴D重合),本方案折叠时两个支架部218、220可以通过弧形缺口446、448绕转动结构22转动靠得更近,减小脖戴风扇的体积,节省空间。在所示的实施例中,弧形缺口446、448的弧长为四分之一圆,转动结构22为圆柱形,转动结构22的一半凸伸出支架部的前侧(图11)。在其他实施例中,转动结构22也可以相较于支架部朝向支架部的后侧突出。
转动结构如图20和图21所示,在本实施例中,支架部218、220都为中空结构。支架部218、220内设有第一空腔413,第一空腔413作为气流流道449(图13)和/或容置各部件,例如电路板460、电池470(图13)等的场所。转动结构22内设有第二空腔450,支架部218、220内的第一空腔413与转动结构22内的第二空腔450连通。当两个支架部218、220中只有其中一个支架部内设有电路板460,即两个支架部上的出风部共用一个电路板460时,第二空腔450能够方便线缆(例如电路板460与定子组件36、236之间的连接线缆)在两个支架部之间的走线。
此处介绍的转动结构22除了可应用于本实施例之外,还可以用于图1至图8的实施例和后面图22至图26的实施例。在一些实施例中,转动结构22还可以用于连接任何脖戴风扇的两个支架部,而不论支架部上是否设有出风部或者设有多少个出风部。在一些实施例中,转动结构22还可以应用于具有两个支架部的任何脖戴装置,而不限于脖戴风扇,用于可转动地连接两个支架部,使得两个支架部可以转动折叠在一起,减小占用空间,方便携带和收纳;例如,转动结构22还可以应用于颈部按摩器。
本发明的上述实施例提供了一种脖戴风扇,其具有用于为颈部降温的第一出风部和用于为人体其他部位,例如脸部或背部降温的第二出风部,且第二出风部的出风口可以调节角度使得第二出风部的风可以吹向人脸或背部的不同部位,满足用户的多种降温需求。在一些实施例中,第二出风部的第二风扇是连接在安装座,因此是安装在脖戴支架上的,因此调节第二出风部的出风口角度时,只需要转动第二出风部的外壳,而不需要转动风扇,提高了第二出风部的可靠性和使用寿命。在一些实施例中,设置有旋转定位结构,可以选择性地将第二出风部定位在若干不同的圆周位置,方便用户调节并定位出风口位置,并且在调节过程中能够给用户提供角度感知反馈。
在一些实施例中,脖戴风扇或其他脖戴装置的两个支架部采用转动结构连接,当用户使用完后,通过转动两个支架部能够使得该脖戴风扇被折叠,从而方便用户携带或收纳;当用户需要使用时,通过反向转动两个支架部,从而方便用户佩戴使用。而且,通过弹性加载的定位凸起和定位槽的相互配合进行定位,用户在转动两个支架部时能够感知转动角度,且转动完成后两个支架部的角度不容易轻易发生改变,方便用户的使用,增加了该脖戴风扇的实用性能,提升了用户的使用体验。
图22至图26例示了本发明又一实施例的脖戴风扇500。
如图22至图26所示,本实施例提供的一种脖戴风扇500,包括脖戴支架512、第一风扇530、第二风扇546以及外壳544。
脖戴支架512呈弯曲状且可用于佩戴在人体颈部,脖戴支架512内设有用于容纳第一风扇530的第一收容腔526以及与第一收容腔526连通的风道502,脖戴支架512还设有与第一风扇530对应的第一进风口532,第一进风口532与第一收容腔526相连通,风道502的侧壁上设有第一出风口504,第一风扇530运转产生的风经风道502后从第一出风口504吹出。
外壳544与脖戴支架512连接,外壳544内设有用于容纳第二风扇546的第二收容腔542以及与第二收容腔542连通的第二进风口548和第二出风口550,第二进风口548和第二出风口550均与第二收容腔542相连通,第二风扇546安装在第二收容腔542内,第二风扇546 运转产生的风经第二收容腔542后从第二出风口550吹出。其中,第一风扇530和第二风扇546优选为涡轮风扇。
本实用新型中脖戴支架512的第一出风口504吹出来的风可以吹向用户的颈部,外壳544的第二出风口550吹出来的风可以吹向用户脸部,从而使得脖戴风扇的风可同时吹向人体脸部和颈部,出风范围更广,风力更大。
具体地,本实施例中,外壳544与脖戴支架512转动连接,从而使得用户可以根据自身需要轻松地调节第二出风口550的出风方向,使第二风扇546的风从第二出风口550吹向人体脸部的不同位置,更加方便用户使用。当然,在其他实施例中,外壳544与脖戴支架512也可以是固定连接,第二出风口550设计为直接朝向人体脸部。
本实施例中,脖戴支架512整体呈C或U字形,并与人体颈部的弧度相适配。具体地,脖戴支架512包括连接部510和两个第一出风部514,两个第一出风部514分别设于连接部510的两端并与连接部510相固定。其中,连接部510还设有万向软管521,以便用户可以根据自己的颈部大小来对脖戴支架512进行弯折,使脖戴支架512与自己的颈部相匹配,而第一收容腔526、风道502、第一进风口532以及第一出风口504均设于第一出风部514内。优选地,两个第一出风部514内均设有第一风扇530及与第一风扇530对应的风道502,实现脖戴风扇两侧均可出风,当然,也可是其中一个第一出风部514内设有第一风扇530及与第一风扇530对应的风道502,实现脖戴风扇单侧出风,虽然单侧出风不便于用户体验,但并不排除此实施方式。在其他实施例中,第一出风部514设于连接部510的两端并与连接部510枢转连接,即第一出风部514可相对连接部510转动。在枢转处还可设置卡齿,当用户弯折第一出风部514和连接部510后,脖戴支架512可以保持在相应的弯折角度,从而使脖戴支架512的大小可以调节,弯折后也便于脖戴风扇的携带。或者第一出风部514与连接部510进行滑动连接,从而使得脖戴支架512的长度可以自由调节。或者,无需设置连接部510,脖戴支架512包括两个第一出风部514,两个第一出风部514直接进行枢转连接。
进一步地,每个第二风扇546和外壳544共同组成为第二出风部540,第二风扇546和外壳544的数量优选为两个,每个外壳544内设有一个第二风扇546,外壳544优选设于脖戴支架512两端的内侧,即脖戴支架512两端相向的一侧。具体地,外壳544设于第一出风部514远离连接部510的一端并朝向脖戴支架512的内侧(即两个第一出风部514相向的一侧)。当然,在其他实施例中,外壳544也可设于脖戴支架512两端的外侧,或外壳544同时设于脖戴支架512两端的内侧和外侧。
进一步地,第二进风口548设于外壳544相对的两个侧壁上,第二出风口550与第二进风口548分别设于外壳544相邻的两个侧壁上。进一步地,外壳544为圆形结构,外壳544包括相互连接的第一壳体544a和第二壳体544b,第二进风口548设于第一壳体544a和第二壳体544b底壁上,第二出风口550设于第一壳体544a和第二壳体544b的侧壁上。
进一步地,外壳544的一侧设有连接轴578,脖戴支架512上设有安装孔576(图25),连接轴578安装在安装孔576中并能够在安装孔576中转动,外壳544通过连接轴578和安装孔576配合从而实现与脖戴支架512转动连接。具体地,连接轴578设于第二壳体544b的底壁上,连接轴578上设有限位凸起522,限位凸起522为环形结构,限位凸起522的外径大于安装孔576的内径,安装孔576设有与限位凸起522配合的限位凹槽,限位凸起522和限位凹槽用于限定连接轴578在安装孔576中的位置,使连接轴578卡在安装孔576中,防止连接轴578从安装孔576中掉出。当然,在其他实施例中,限位凹槽也可设置在连接轴578上,限位凸起522设置安装孔576中。
进一步地,脖戴支架512上设有驱动装置61,驱动装置61用于驱动外壳544在脖戴支架512上转动。从而使得外壳544自动循环转动,以朝向人体不同位置出风,方便用户使用。
本实施例中,驱动装置61包括驱动电机611和第一传动齿轮612,连接轴578上设有第二传动齿轮614,驱动电机611固定在脖戴支架512上,驱动电机611的轴线与连接轴578的轴线位于不同直线上,但相互平行。第一传动齿轮612和第二传动齿轮614设于第二壳体 544b与第一出风部514之间的间隙内,或者第一传动齿轮612和第二传动齿轮614设于第一出风部514内,以遮挡住第一传动齿轮612和第二传动齿轮614,以增加脖戴风扇的美观。第一传动齿轮612安装在驱动电机611的转动轴上,第一传动齿轮612与第二传动齿轮614相互啮合,从而使得驱动电机611的转动轴与外壳544传动连接。当然,在其他实施例中,驱动装置61包括驱动电机611,无需设置传动齿轮,驱动电机611位于脖戴支架512中并与安装孔576相对,驱动电机611的轴线与连接轴578的轴线位于同一直线上,连接轴578插入安装孔576后安装在驱动电机611的转动轴上,连接轴578通过驱动电机611与脖戴支架512转动连接,从而驱动电机611直接驱动外壳544转动。优选地,连接轴578为管状结构,从而便于导线穿过连接轴578与第二风扇546电性连接。
进一步地,驱动电机611驱动外壳544朝第一方向转动到一定位置时,驱动电机611驱动外壳544朝相反于第一方向的第二方向转动,例如,当驱动电机611驱动外壳544正转到一定角度后,又驱动外壳544进行反转。从而使第二出风口550可以往返移动,吹出风覆盖的范围更广泛。
进一步地,第二风扇546的轴线与连接轴578的轴线位于同一直线上。具体地,连接轴578与脖戴支架512相垂直,第二风扇546绕着连接轴578的轴线方向转动。当然,第二风扇546的轴线与连接轴578的轴线也可位于两条不同的直线上,但相互平行。
进一步地,第一出风口504设置在第一出风部514的内侧面偏上侧位置,当然,第一出风口504也可以直接设置在第一出风部514顶面上,使得第一出风口504出来的风可吹向人体颈部。第一出风口504靠近第一风扇530一端的尺寸大于远离第一风扇530一端的尺寸,从而保证远离第一风扇530一端的第一出风口504还具有较强的风力。具体地,第一出风口504包括多个通孔,多个通孔沿第一出风部514长度方向排列,靠近第一风扇530一端通孔的孔径大于远离第一风扇530一端通孔的孔径。即越靠近第一风扇530通孔的孔径越大,越远离第一风扇530通孔的孔径越小,以提高越远离第一风扇530通孔处的风速。当然,第一出风口504也可以为长条形的出风孔,第一出风口504沿第一出风部514长度方向延伸,第一出风口504的宽度朝向第一风扇530方向越来越宽。
进一步地,第一进风口532设置在第一出风部514的两侧。第一出风部514设有保护盖534,保护盖534设于第一出风部514远离外壳544的一侧,保护盖534用于遮挡住第一出风部514其中一侧的第一进风口532,防止头发卷入第一风扇530中。
具体地,第一收容腔526位于脖戴支架512的端部,端部具有远离人体颈部的外侧和靠近人体颈部的内侧,脖戴支架512的内侧的侧壁与外壳544之间形成一缝隙(参考图23),内侧的第一进风口532(即通孔)与缝隙流体相通,从而防止外壳544影响内侧的第一进风口532进风。
进一步地,第一出风部514内还设有容置腔516和隔板518,风道502和容置腔516分别设于隔板518的两侧并通过隔板518隔开。其中,容置腔516用于放置电池560、电路板570等部件,电池560用于给第一风扇530和第二风扇546供电。本实施例中,脖戴风扇的其中一第一出风部514上设有电源按键515,电源按键515用于控制第一风扇530和第二风扇546的开启、关闭以及风速。脖戴风扇还设有指示灯以及充电接口等,这里不再赘述。
进一步地,隔板518沿第一出风部514的长度方向延伸并用于限定风道502的形状,使风道502自远离第一收容腔526的一端朝向第一收容腔526逐渐变大。第一出风部514内还设有导风板517,导风板517与隔板518的板面相垂直,导风板517沿第一出风部514的长度方向延伸并用于限定风道502的形状,使风道502自远离第一收容腔526的一端朝向第一收容腔526逐渐变大。从而保证远离第一风扇530一端的第一出风口504还具有较强的风力。
进一步地,第一风扇530的轴心与第一收容腔526的中心为偏心设置,第一风扇530与第一收容腔526侧壁之间形成间隙,间隙朝向第一风扇530转动方向逐渐变宽。即第一风扇530的轴心并不是设置在第一收容腔526的中心,而是与第一收容腔526的中心具有一定偏移。第一风扇530在转动过程中,在间隙内形成气流并将气流推向风道502内,通过将第一 风扇530偏心设置,使第一风扇530与第一收容腔526侧壁之间的间隙逐渐变宽,可使得间隙内的气流随着第一风扇530的转动方向逐渐加强,提高出风量。
进一步地,第一出风部514内还设有切风板519,切风板519设于风道502与第一收容腔526的连接处,切风板519用于阻断气流从风道502回流入第一收容腔526内。当第一风扇530转动并形成气流时,通过切风板519防止气流在风道502与第一收容腔526之间的结合位置处形成旋流,而切风板519可将此处气流切断,防止风道502内的气体流又流回第一收容腔526内,使得气流从出风口顺畅排出,进一步增加出风口的出风量,防止噪音产生。
在其他实施例中,脖戴风扇包括电池560和电路板570,电池560和电路板570均设于容置腔516内。电池560和电路板570均与第一风扇530和第二风扇546电性连接,电池560用于给第一风扇530和第二风扇546提供电能,电路板570上设有驱动电路及与驱动电路连接的控制器,脖戴支架512的外表面设有触控操作区域,脖戴支架512内对应触控操作区域的位置设有与控制器电连接的触控感应元件,触控感应元件用于检测触控操作区域所接收到的触控操作,控制器根据触控操作控制第一风扇530和第二风扇546的开启或关闭,和/或调节第一风扇530和第二风扇546的转速,从而更加智能,且操作更加方便。
上述实施方式仅为本发明的具体实施方式,不能以此来限定本发明保护的范围,本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。

Claims (24)

  1. 一种脖戴风扇,包括第一出风部和第二出风部,所述第一出风部设有第一收容腔以及与所述第一收容腔流体连通的第一进风口和第一出风口,所述第一出风口开设于所述脖戴风扇的脖戴支架上,所述第一收容腔内设有第一风扇,所述第一风扇运转从所述第一进风口吸进空气产生的风经所述第一出风口吹出,其特征在于,所述第二出风部包括设有第二收容腔的外壳,和容置在所述第二收容腔内的第二风扇,所述外壳设有与所述第二收容腔流体连通的第二出风口,所述外壳安装至所述脖戴支架的侧壁上并能够相对于所述脖戴支架转动以调节所述第二出风口的位置。
  2. 如权利要求1所述的脖戴风扇,其特征在于,所述脖戴支架的侧壁上设有安装座,所述外壳安装至所述安装座上并能够相对于所述安装座转动。
  3. 如权利要求2所述的脖戴风扇,其特征在于,所述安装座包括一面向所述外壳的第一安装面,所述外壳包括一面向所述安装座的第二安装面,所述第一安装面和所述第二安装面之间设有一转动定位结构。
  4. 如权利要求3所述的脖戴风扇,其特征在于,所述转动定位结构包括若干定位槽和至少一弹性加载的定位凸起,所述若干定位槽设于所述第一安装面和第二安装面其中之一上并沿所述外壳的转动方向间隔设置,所述至少一弹性加载的定位凸起设于所述第一安装面和第二安装面其中另一上,所述至少一弹性加载的定位凸起用于与所述若干定位槽选择性地配合,以在所述外壳的转动方向上将所述第二出风部选择性地定位在若干不同的圆周位置。
  5. 如权利要求4所述的脖戴风扇,其特征在于,所述第一安装面和第二安装面中设有所述至少一弹性加载的定位凸起的那个安装面上设有一凹槽,所述凹槽具有一凹槽底部和一凹槽开口部,所述至少一弹性加载的定位凸起包括:一定位件,所述定位件位于所述凹槽内并部分露出所述凹槽开口部以卡入其中一所述定位槽中;以及一弹性件,所述弹性件设置于所述凹槽底部并对所述定位件施加朝向所述凹槽开口部的弹性偏压。
  6. 如权利要求3-5任意一项所述的脖戴风扇,其特征在于,所述安装座包括一突出的中央部,所述第一安装面设置在所述中央部上,所述转动定位结构设置在所述中央部与所述外壳之间。
  7. 如权利要求6所述的脖戴风扇,其特征在于,所述中央部设有一安装孔,所述外壳通过一连接轴与所述安装孔转动配合,所述转动定位结构环绕所述安装孔设置。
  8. 如权利要求2所述的脖戴风扇,其特征在于,所述第一收容腔位于所述脖戴支架的端部,所述端部具有远离人体颈部的外侧和靠近人体颈部的内侧,所述安装座设置于所述内侧并包括一外环部和一中央部,所述中央部与所述外环部之间设有通孔,所述外环部与外壳之间形成一缝隙,所述第一出风部的第一收容腔与所述通孔流体相通,所述通孔与所述缝隙流体相通;至少部分所述第一进风口设于所述外侧,所述缝隙作为另一部分所述第一进风口。
  9. 如权利要求2所述的脖戴风扇,其特征在于,所述外壳包括底壁、与所述底壁相对的顶壁及连接在所述底壁和所述顶壁之间的环形侧壁,所述底壁、环形侧壁和所述顶壁之间共同形成所述第二收容腔,所述顶壁上设有与所述第二收容腔流体连通的第二进风口,所述第二出风口设置在所述环形侧壁上;所述底壁背离所述第二收容腔的一侧与所述安装座可转动地连接。
  10. 如权利要求2所述的脖戴风扇,其特征在于,所述脖戴支架包括两个支架部以及连接在两个所述支架部之间的转动结构,两个所述支架部关于一对称轴对称,所述转动结构包括第一转动部和第二转动部,所述第一转动部与其中一个支架部固定连接,所述第二转动部与另一个支架部固定连接,所述第一转动部和所述第二转动部可绕一转动轴转动地连接,所述转动轴与所述对称轴间隔且相互平行。
  11. 如权利要求2所述的脖戴风扇,其特征在于,所述外壳通过一支撑架可转动地连接至所述安装座,所述支撑架与所述安装座固定连接,所述外壳可转动地连接至所述支撑架,所述第二风扇连接于所述安装座上。
  12. 如权利要求2所述的脖戴风扇,其特征在于,所述安装座凸出于所述脖戴支架的表面。
  13. 如权利要求1所述的脖戴风扇,其特征在于,所述脖戴支架的两端均设有所述第一风扇和所述第二出风部。
  14. 如权利要求1所述的脖戴风扇,其特征在于,所述脖戴支架的侧壁上固定设有轴管,所述第二风扇连接在所述轴管上。
  15. 如权利要求14所述的脖戴风扇,其特征在于,所述脖戴支架的侧壁上设有安装座,所述安装座包括一外环部和一中央部,所述轴管设置在所述中央部上,所述外壳可转动地连接至所述外环部。
  16. 如权利要求14所述的脖戴风扇,其特征在于,所述第一收容腔位于所述脖戴支架的端部,所述脖戴支架具有远离人体颈部的外侧和靠近人体颈部的内侧,所述外壳连接在所述内侧并包括端壁和环形侧壁,所述端壁和所述环形侧壁共同定义所述第二收容腔,所述第二进风口设置在所述端壁上,所述第二出风口设置在所述环形侧壁上;所述脖戴支架的内侧的侧壁上设有环绕所述轴管设置的通孔,所述第一收容腔与所述通孔流体连通,所述环形侧壁的轴向内端与所述脖戴支架的内侧的表面之间形成缝隙,所述通孔与所述缝隙流体相通,所述第一出风部的至少部分第一进风口设于所述脖戴支架的外侧,所述缝隙作为另一部分第一进风口。
  17. 如权利要求1所述的脖戴风扇,其特征在于,所述脖戴支架的侧壁上设有安装座,所述轴管设置在所述安装座上,所述外壳通过一支撑架可转动地连接至所述安装座,所述支撑架与所述安装座固定连接,所述外壳可转动地连接至所述支撑架并罩设在所述支撑架外围。
  18. 如权利要求17所述的脖戴风扇,其特征在于,所述第二风扇定义一轴向和一径向,所述支撑架的轴向内端与所述安装座固定连接,所述支撑架的轴向外端的中央部位设有一安装台,所述外壳可转动地连接至所述安装台。
  19. 如权利要求18所述的脖戴风扇,其特征在于,所述安装台和所述外壳其中之一设有弹性加载的定位凸起,所述安装台和所述外壳其中另一设有若干定位槽,所述弹性加载的定位凸起用于选择性地与所述若干定位槽配合,以在所述外壳的转动方向上将所述第二出风口选择性地定位在若干不同的圆周位置。
  20. 如权利要求19所述的脖戴风扇,其特征在于,所述支撑架的轴向内端设有一基座,所述基座与所述安装座的外环部固定连接;所述支撑架包括若干支撑条,每个支撑条位于所述第二风扇外侧并连接于所述基座和所述安装台之间,每个支撑条具有一轴向延伸部和一径向延伸部,所述轴向延伸部从所述基座沿轴向延伸,所述径向延伸部从轴向延伸部的轴向外端沿径向延伸至与所述安装台固定连接。
  21. 如权利要求1所述的脖戴风扇,其特征在于,所述第一收容腔位于所述脖戴支架的端部,所述端部具有远离人体颈部的外侧和靠近人体颈部的内侧,所述脖戴支架的内侧的侧壁上对应所述第一收容腔的位置设有通孔,所述脖戴支架的内侧的侧壁与所述外壳之间形成一缝隙,所述第一出风部的第一收容腔与所述通孔流体相通,所述通孔与所述缝隙流体相通;至少部分所述第一进风口设于所述外侧,所述缝隙作为另一部分所述第一进风口。
  22. 如权利要求1所述的脖戴风扇,其特征在于,所述脖戴支架的侧壁上设有驱动装置,所述外壳与所述脖戴支架转动连接,所述驱动装置用于驱动所述外壳在所述脖戴支架上转动。
  23. 如权利要求22所述的脖戴风扇,其特征在于,所述驱动装置包括驱动电机,所述驱动电机的转动轴与所述外壳连接。
  24. 如权利要求22所述的脖戴风扇,其特征在于,所述驱动装置包括驱动电机和第一传动齿轮,所述外壳的一侧设有连接柱,所述连接柱上设有第二传动齿轮,所驱动电机固定在所述脖戴支架上,所述第一传动齿轮安装在所述驱动电机的转动轴上,所述第一传动齿轮与所述第二传动齿轮相互啮合。
PCT/CN2021/124237 2020-10-20 2021-10-15 脖戴风扇 WO2022083519A1 (zh)

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