WO2022048055A1 - 档位旋钮装置及其所属的风扇 - Google Patents

档位旋钮装置及其所属的风扇 Download PDF

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Publication number
WO2022048055A1
WO2022048055A1 PCT/CN2020/133488 CN2020133488W WO2022048055A1 WO 2022048055 A1 WO2022048055 A1 WO 2022048055A1 CN 2020133488 W CN2020133488 W CN 2020133488W WO 2022048055 A1 WO2022048055 A1 WO 2022048055A1
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WO
WIPO (PCT)
Prior art keywords
knob
base plate
circumferential wall
stopper
gear
Prior art date
Application number
PCT/CN2020/133488
Other languages
English (en)
French (fr)
Inventor
陆为东
杨明富
Original Assignee
苏州欧圣电气股份有限公司
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 苏州欧圣电气股份有限公司 filed Critical 苏州欧圣电气股份有限公司
Publication of WO2022048055A1 publication Critical patent/WO2022048055A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/03—Means for limiting the angle of rotation of the operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob

Definitions

  • the present application relates to a gear knob device, in particular to a gear knob device of a fan.
  • the gear knob device in the related art includes a knob, and the rotating knob is used to drive the gear shaft of the electrical appliance to rotate to realize the control of opening and closing of the electrical appliance and/or the control of the gear size.
  • Requirements corresponding to different knob rotation angle ranges
  • the technical problem to be solved by the present application is to improve the use experience of the gear knob device.
  • a gear knob device comprising a pocket portion, a knob at least partially accommodated in the pocket portion, the knob can be rotated relative to the pocket portion, and the pocket portion is provided with a first circumferential wall, an outer port, and The outer port is opposite to the base plate, the knob is installed to the concave part by the outer port, a chute is formed between the base plate and the first circumferential wall, the knob is provided with a snap portion, and the snap portion is limited to As for the chute, along with the rotation of the knob relative to the pocket portion, the snap portion rotates along the chute.
  • the first circumferential wall surrounds the rotation axis of the knob, the outer port and the chute are located on opposite sides of the first circumferential wall, and the edge of the first circumferential wall away from the outer port is connected to the base plate. The space therebetween forms the chute.
  • the outer circumference of the base plate is circular
  • the first circumferential wall is circular
  • the outer diameter of the base plate is smaller than the inner diameter of the first circumferential wall
  • the first circumferential wall is far away from the outside.
  • the first circumferential wall is provided with a notch, the notch at least blocks off the edge of the first circumferential wall away from the outer port, and the recess portion further includes a connecting portion, the connecting portion is connected to the base plate and the outer port. Between the outer ports, the connecting portion is adjacent to the notch, and the snap portion can pass through between the notch and the connecting portion during the rotation of the knob.
  • the connecting part includes a first part and a second part connected between the base plate and the first part, the first part is located radially outside the corresponding gap, and the gap is located between the outer port and the second part , along with the rotation of the knob, the snap portion can pass through between the gap and the second part.
  • the projection of the second part along the rotation axis of the knob does not overlap with the projection of the first circumferential wall along the rotation axis of the knob, and the projection of the substrate along the rotation axis of the knob does not overlap with the first circumferential wall.
  • the projections of the walls along the axis of rotation of the knob do not overlap.
  • the first part and the second part are connected together to form an L-shape, the second part extends radially outward from the outer circumference of the base plate, and the notch places the first circumferential wall in a position around the rotation axis of the knob.
  • Circumferentially partitioned, the connecting portion is completely offset from the first circumferential wall in the circumferential direction around the rotation axis of the knob.
  • the outer port is provided with an annular edge, the annular edge surrounds the knob, the first part is connected between the annular edge and the second part, and the first circumferential wall extends from the annular edge to the side where the substrate is located.
  • the knob is also provided with an annular brim corresponding to the annular edge, the annular brim is located on the circumferential periphery of the knob, the snap portion and the annular brim are located on opposite sides of the first circumferential wall, and the annular brim can be Press the annular edge against the side where the base plate is located.
  • the knob is further provided with a second circumferential wall and an elastic arm nested with the first circumferential wall, the first circumferential wall is located on the periphery of the second circumferential wall, and the second circumferential wall surrounds the rotation axis of the knob,
  • the second circumferential wall is provided with a notch, and the elastic arm is located in the notch.
  • the knob can be rotated relative to the concave portion to drive a gear shaft to rotate, and one end of the gear shaft passes through the base plate and is limited in the knob.
  • the rotation axis of the knob is perpendicular to the base plate, the base plate is provided with a through hole, the rotation axis of the knob passes through the through hole, and the gear shaft passes through the base plate through the through hole.
  • the recessed portion is further provided with at least one stopper portion that can be used to block the rotation of the knob, the at least one stopper portion is provided on the side of the substrate facing the outward port, and the at least one stopper portion is integrated connected to and protruding from the substrate.
  • the at least one stopper includes a first stopper and a second stopper
  • the knob is limited to rotate between a first angular position and a second angular position, and the knob rotates to the first angular position.
  • the knob is stopped by the first stop part when it is at the angular position, and stopped by the second stop part when the knob is rotated to the second angle position.
  • the knob is further provided with a first interference portion extending toward the base plate, the first stopper portion and the second stopper portion respectively extend from the base plate toward the outer port, when the knob rotates to the first angular position
  • the first interference portion is stopped by the first stop portion, and the first interference portion is stopped by the second stop portion when the knob is rotated to the second angular position.
  • the first interference portion and the first stop portion at least partially overlap in the circumferential direction around the rotation axis of the knob, and the first interference portion and the first stop portion are respectively aligned with the second in the circumferential direction around the rotation axis of the knob.
  • the stops overlap at least partially.
  • the at least one stopper includes a first stopper, a second stopper, and a third stopper, and the first stopper, the second stopper, and the third stopper are respectively Set on the side of the base plate facing the outward port, the first stopper, the second stopper, and the third stopper are integrally connected to and protrude from the baseplate, respectively, and the knob is limited to a first angular position and a If the knob rotates between the third angular positions, the knob is further provided with a first interference part and a second interference part. When the knob rotates to the first angular position, the first interference part is stopped by the first stop part, and the knob is also provided with a first interference part and a second interference part. When rotated to the third angular position, the second interference portion is stopped by the third stop portion.
  • the first interference portion and the first stop portion at least partially overlap in the circumferential direction around the rotation axis of the knob, and the first interference portion and the second stop portion at least partially overlap in the circumferential direction around the rotation axis of the knob,
  • the second interference portion and the third stop portion at least partially overlap in the circumferential direction around the rotation axis of the knob, and the first interference portion and the third stop portion are completely offset in the circumferential direction around the rotation axis of the knob.
  • the first stop part and the second stop part are opposite in the circumferential direction around the rotation axis of the knob, the first stop part and the third stop part are completely offset in the circumferential direction around the rotation axis of the knob, and the first stop part and the third stop part are completely offset in the circumferential direction around the rotation axis of the knob.
  • the second stopper and the third stopper are completely offset in the circumferential direction around the rotation axis of the knob.
  • the present application also provides a fan, including the aforementioned gear knob device.
  • the snap portion is limited to the chute, and along with the rotation of the knob relative to the pocket portion, the snap portion rotates along the chute, and passes through the chute formed between the base plate and the first circumferential wall and the The cooperation of the snap portion of the knob can effectively prevent the knob from being separated from the recessed portion, and the knob can be rotated relatively smoothly relative to the recessed portion, and the user experience is better.
  • Fig. 1 is an exploded view of the fan
  • Fig. 2 is a sectional view of the fan along the gear shaft
  • Figure 3 is a perspective view of an outer casing at an angle
  • Figure 4 is a perspective view of another angle of the outer casing
  • Fig. 5 is the perspective view of the outer cover shell from another angle
  • Figure 6 is a perspective view of an angle of the knob
  • Figure 7 is a perspective view of another angle of the knob
  • Figure 8 is a perspective view of another angle of the knob
  • FIG. 9 is an enlarged view of the gear knob device in FIG. 2;
  • Figure 10 is an enlarged cross-sectional view of the gear knob device (the cross section is perpendicular to the gear axis);
  • FIG. 11 is a perspective view of an angle of the knob after the second interference portion is removed.
  • FIG. 12 is a perspective view of another angle of the knob after the second interference portion is removed;
  • FIG 13 is an enlarged cross-sectional view of the shift knob device after the second interference portion is removed (the cross section is perpendicular to the shift axis).
  • the gear knob device includes a recessed portion 1 and a knob 2, and the knob 2 is at least partially accommodated
  • the recessed portion 1 is rotatable relative to the recessed portion 1.
  • the recessed portion 1 is provided with a first circumferential wall 10, an outer port 11, a base plate 12, and a connecting portion 14.
  • the knob 2 and the outer port 11 are located on the same side of the base plate 12.
  • the base plate 12 is opposite to the outer port 11
  • a chute 13 is formed between the base plate 12 and the first circumferential wall 10
  • the knob 2 is provided with a snap portion 200
  • the snap portion 200 is limited to the chute 13, along with the knob 2 Relative to the rotation of the pocket portion 1
  • the buckle portion 200 rotates along the chute 13 .
  • the knob 2 is restrained from being separated from the concave portion 1 and the knob 2 can be smoothly connected with the knob 2 .
  • the concave part 1 is rotated and matched, and the user experience is good.
  • the first circumferential wall 10 is in the shape of a circular ring as a whole, the first circumferential wall 10 surrounds the rotation axis of the knob 2 , and the gap between the edge of the first circumferential wall 10 away from the outer port 11 and the base plate 12 forms the chute 13.
  • the outer circumference of the base plate 12 is circular, the outer diameter of the base plate 12 is smaller than the inner diameter of the first circumferential wall 10 , and the gap between the edge of the first circumferential wall 10 away from the outer port 11 and the circumferential edge of the base plate 12 forms the sliding Slot 13; the chute 13 is annular as a whole.
  • the rotation axis of the knob 2 is set as the axial direction
  • the so-called radial direction in this patent application is relative to the rotation axis of the knob 2
  • the so-called circumferential direction in this patent application is also relative to the knob 2 on the axis of rotation.
  • the first circumferential wall 10 is provided with a notch 100 .
  • the notch 100 extends from the edge of the first circumferential wall 10 away from the outer port 11 toward the outer port 11 , and the notch 100 at least blocks the edge of the first circumferential wall 10 away from the outer port 11 . In this way, the deformability of the side of the first circumferential wall 10 adjacent to the chute 13 can be enhanced, so that the snap portion 200 can be more smoothly inserted into the chute 13 .
  • the connecting portion 14 is L-shaped, the connecting portion 14 is connected between the base plate 12 and the external port 11 , and the connecting portion 14 is adjacent to the notch 100 .
  • the snap portion 200 can be connected to the connecting portion from the notch 100 . Pass between 14.
  • the connection part 14 includes a first part 140 and a second part 141 connected between the substrate 12 and the first part 140 , the first part 140 is located radially outside the corresponding notch 100 , and the notch 100 is located between the outer port 11 and the second part 141 , along with the rotation of the knob 2 , the snap portion 200 can pass through between the notch 100 and the second portion 141 .
  • the first part 140 and the second part 141 are bent and connected, the first part 140 and the second part 141 are connected to form an L shape, the first part 140 is perpendicular to the substrate 12, and the second part 141 is coplanar with the substrate 12; the second part 141 is integrally connected to the The base plate 12 , the second portion 141 extends radially outward from the outer periphery of the base plate 12 .
  • the notch 100 cuts off the first circumferential wall 10 in the circumferential direction around the rotation axis of the knob 2, the connecting portion 14 is spaced from the first circumferential wall 10, and the connecting portion 14 will not hinder the deformation of the first circumferential wall 10, which is convenient for The snap portion 200 is snapped into the chute 13 .
  • the first circumferential wall 10 is divided into four sections by four gaps 100 .
  • the four gaps 100 correspond to the four connecting parts 14 , and the four gaps 100 and the four connecting parts 14 are respectively evenly distributed around the rotation of the knob 2
  • the connecting portion 14 is completely offset from the first circumferential wall 10 in the circumferential direction around the rotation axis of the knob 2 .
  • the outer port 11 is provided with an annular edge 110
  • the first part 140 is integrally connected to the annular edge 110
  • the first part 140 extends from the annular edge 110 to the side where the substrate 12 is located
  • the annular edge 110 surrounds the knob 2
  • the first circumferential wall 10 extends from the annular edge 110 extends to the side where the base plate 12 is located
  • the connecting portion 14 is connected between the base plate 12 and the annular rim 110
  • the knob 2 is also provided with an annular visor 210 corresponding to the annular rim 110
  • the annular visor 210 is located on the circumferential periphery of the knob 2. 210 can press the annular edge 110 to the side where the base plate 12 is located.
  • the base plate 12 and the components inside the base plate 12 are crushed; the buckle portion 200 and the ring-shaped brim 210 are located on opposite sides of the first circumferential wall 10.
  • the knob 2 is axially locked. effective limit.
  • the knob 2 is also provided with an end cap 21.
  • the end cap 21 is partially located in the outer port 11.
  • the end cap 21 includes a screwing part 211 on the outer side of the end cap 21.
  • the annular cap 210 belongs to a part of the end cap 21. Turn knob 2.
  • the base plate 12 is in the shape of a flat plate, the width of the notch 100 is greater than the width of the second part 141 , the projection of the second part 141 along the rotation axis of the knob 2 does not have any overlap with the projection of the first circumferential wall 10 along the rotation axis of the knob 2 , the projection of the base plate 12 along the rotation axis of the knob 2 does not have any overlap with the projection of the first circumferential wall 10 along the rotation axis of the knob 2, so that the first circumferential wall 10 does not prevent the second part 141, the base plate 12 from being detached Molded.
  • the projection along the rotation axis of the knob 2 is the projection obtained by the projection direction parallel to the rotation axis of the knob 2 .
  • the projection of the second portion 141 to the outward port 11 along the rotation axis of the knob 2 falls into the outer port 11
  • the projection of the substrate 12 to the outward port 11 along the rotation axis of the knob 2 falls into the outer port 11 .
  • the knob 2 is an integrally formed one-piece part.
  • the knob 2 is also provided with an elastic arm 20, a second circumferential wall 22, and a sleeve portion 23.
  • the buckle portion 200 belongs to a part of the elastic arm 20.
  • the second circumferential wall 22 is connected to the first circumferential wall 22.
  • the walls 10 are nested, the first circumferential wall 10 is located on the periphery of the second circumferential wall 22, the second circumferential wall 22 is located on the outer circumference of the knob 2, the second circumferential wall 22 is in the shape of a circular ring as a whole, and the second circumferential wall 22 is provided with a notch 220, so that the elastic
  • the arm 20 is located in the notch 220, the buckle portion 200 is located at the end of the elastic arm 20 away from the outer port 11, the radially opposite sides of the knob 2 are respectively provided with an elastic arm 20, the second circumferential wall 22 and its elastic arm 20 are self-contained.
  • the end cap 21 extends toward the side where the base plate 12 is located.
  • the knob 2 When the knob 2 rotates relative to the pocket portion 1, it will drive the gear shaft 30 to rotate, and one end of the gear shaft 30 passes through the base plate 12 and is limited in the knob 2.
  • the rotation of the gear shaft 30 is used to realize the switch control of the electric appliance (eg, the fan) and/or the control of the gear size.
  • One end of the gear shaft 30 is inserted into the sleeve portion 23 , the sleeve portion 23 is provided with a first flat position 230 , and one end of the gear shaft 30 is provided with a second flat position 300 corresponding to the first flat position 230 .
  • the sleeve portion 23 and the gear shaft 30 can be effectively combined together, and the knob 2 drives the gear shaft 30 to rotate through the sleeve portion 23 .
  • the gear shaft 30 is perpendicular to the base plate 12, the base plate 12 is provided with a through hole 120, the gear shaft 30 penetrates through the base plate 12 through the through hole 120, the base plate 12 is in the shape of a circular plate, the through hole 120 is located at the center of the base plate 12, and the rotation axis of the knob 2 Perpendicular to the base plate 12 , the rotation axis of the knob 2 passes through the through hole 120 .
  • the cavity portion 1 is further provided with at least one stopper portion which can be used to block the rotation of the knob 2, the at least one stopper portion is arranged on the side of the base plate 12 facing the outer port 11, and the at least one stopper portion is integrally connected to the outer port 11. And protruding from the substrate 12 , the arrangement of the stopper on the substrate 12 is not easily restricted, and a reasonable arrangement of the stopper can be performed relatively freely.
  • the at least one stopper includes a first stopper 150 , a second stopper 151 , and a third stopper 152 .
  • the first stopper 150 , the second stopper 151 , and the third stopper 152 are respectively The first stopper 150 , the second stopper 151 , and the third stopper 152 are integrally connected to and protrude from the base plate 12 .
  • the first stopper 150 , the second stopper 151 and the third stopper 152 The second stopper portion 151 and the third stopper portion 152 respectively extend outward from the base plate 12 . More specifically, the first stopper portion 150 , the second stopper portion 151 and the third stopper portion 152 extend from the base plate 12 to the outside.
  • the outer port 11 extends, and the knob 2 is limited to rotate between the first angular position (the knob 2 is in the first angular position in the figure) and the third angular position.
  • the third stopper portion 152 is limited between the first angular position and the third angular position; the knob 2 is further provided with a first interference portion 240 and a second interference portion 241 , and the first interference portion 240 and the second interference portion 241 face the substrate respectively.
  • the first stopper 150 and the second stopper 151 are opposite in the circumferential direction around the rotation axis of the knob 2 , and the first stopper 150 and the third stopper 152 are completely offset in the circumferential direction around the rotation axis of the knob 2 , the second stop part 151 and the third stop part 152 are completely offset in the circumferential direction around the rotation axis of the knob 2 ; the first interference part 240 and the first stop part 150 are at least in the circumferential direction around the rotation axis of the knob 2 partially overlap, so that the first stopper 150 can be used to stop the first interference part 240; the first interference part 240 and the second stopper 151 at least partially overlap in the circumferential direction around the rotation axis of the knob 2, so that the second stopper
  • the blocking part 151 can be used to stop the first interference part 240; the second interference part 241 and the third blocking part 152 at least partially overlap in the circumferential direction around the rotation axis of the knob 2, so that the third blocking part 152 can be
  • the cavity portion 1 is further provided with a connecting rib 153 , and the connecting rib 153 connects the first stopper 150 and the second stopper 151 to enhance the structural stability of the first stopper 150 and the second stopper 151
  • the knob 2 is also provided with a semi-annular rib 25, and the semi-annular rib 25 extends toward the base plate 12; the second interference portion 241 is integrally connected to the radial outer side of the semi-annular rib 25.
  • the first interference portion 240, the second interference The portion 241 and the semi-annular rib 25 extend from the end cap 21 to the base plate 12 respectively.
  • the first stopper portion 150 , the second stopper portion 151 and the third stopper portion 152 respectively extend from the base plate 12 to the end cap 21 .
  • the gear knob device can also use the knob 2' (as shown in Figure 11, Figure 12, Figure 13).
  • the difference between the knob 2' and the knob 2 shown in Figure 6, Figure 7, and Figure 10 is only This is because the knob 2' is not provided with the second interference part 241, and the knob 2' is the knob 2 after the second interference part 241 has been removed; since the knob 2' does not have the second interference part 241, the knob 2' will not be stopped by the third The blocking portion 152 is blocked at the third angular position.
  • the rotation angle range of the knob 2' is enlarged (relative to the knob 2); the knob 2' (ie the knob 2 with the second interference portion 241 removed) is limited to the first Rotating between an angular position and a second angular position, the knob 2' (that is, the knob 2 with the second interference portion 241 removed) passes through the third angular position during the rotation from the first angular position to the second angular position; the knob 2 'When rotated to the first angular position, the first interference part 240 is stopped by the first stop part 150; the knob 2' can continue to rotate until the second angular position after being rotated from the first angular position to the third angular position, the knob 2' When rotated to the second angular position, the first interference portion 240 is stopped by the second blocking portion 151 .
  • the knob 2 if the knob 2 does not have the second interference portion 241, the knob 2 will not be blocked at the third angular position by the third stop portion 152, that is, if the knob 2 removes the second interference portion 241, the knob 2 is limited to After rotating between the first angle position and the second angle position and the knob 2 is rotated from the first angle position to the third angle position, it can continue to rotate until the second angle position, and the first interference part when the knob 2 is rotated to the second angle position 240 is stopped by the second stopper 151 .
  • the knobs 2 , 2 ′ and the cavity portion 1 are respectively injection-molded.
  • the knobs 2 , 2 ′ are installed to the cavity portion 1 from the outer port 11 .
  • the knobs 2 , 2 ′ are pushed toward the base plate 12 to make the snap portion 200 embedded.
  • Chute 13; the difference between the first angular position and the third angular position is about 90 degrees, that is, the knobs 2 and 2' can be rotated about 90 degrees from the first angular position to reach the third angular position; the first angular position and the second angular position
  • the difference between the angular positions is about 280 degrees, that is, the knobs 2 and 2' can be rotated about 280 degrees from the first angular position to reach the second angular position.
  • gear knob device When developing the gear knob device, those skilled in the art can produce two gear knob devices with different rotation angle ranges (using the same Concave part 1, and use knob 2 and knob 2') respectively, so as to be applied to different types of electrical appliances, the difference between the molds of these two gear knob devices can only be at the position corresponding to the second interference part 241, so the difference is very small , Improve the structural design and mold design versatility of the gear knob device, and reduce product development and manufacturing costs.
  • the fan also includes a motor 40, a fan blade 41 driven by the motor 40, a rear grille 42, a front grille 43, a drum ring 44, a support frame 45, a handle 46, and wheels 47.
  • the gear shaft 30 and the outer casing 48 exposed to the outside of the fan.
  • the outer casing 48 is an integrally formed one-piece part, the recessed part 1 is a part of the outer casing 48, the outer casing 48 covers the rear side of the motor 40, the motor 40 is located between the fan blade 41 and the outer casing 48, and the fan blade 41 is located between the rear grille 42 and the front grille 43; when the fan is working, the front grille 43 discharges the air forward; the rated power of the motor 40 is between 10w and 1000w, preferably between 20w and 500w, such as 40w, 50w, 70w, 95w, 125w, 150w; the fan blade 41 is located on the front side of the motor 40, the cavity 1 is recessed towards the fan blade 41, the rear mesh cover 42 is recessed towards the fan blade 41 to form a recessed space 420, and the outer casing 48 It is accommodated in the recessed space 420, the cylinder ring 44 surrounds the fan blade 41 and the motor 40, the rear mesh cover 42 and the front mesh cover 43 are respectively disc-shaped, the outer circumference of the rear

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)

Abstract

一种档位旋钮装置，包括凹穴部、至少部分收容于凹穴部的旋钮，所述旋钮可相对于凹穴部转动，所述凹穴部设有第一周向壁、外端口、与外端口相对的基板，所述旋钮由外端口安装至凹穴部，所述基板与第一周向壁之间形成有滑槽，所述旋钮设有卡扣部，所述卡扣部限位于滑槽，伴随着旋钮相对于凹穴部的转动，所述卡扣部沿着滑槽转动，本申请通过基板与第一周向壁之间形成的滑槽与旋钮的卡扣部的配合，有效抑制旋钮脱离凹穴部，并且旋钮可以较顺畅相对于凹穴部转动，用户使用体验较佳。

Description

档位旋钮装置及其所属的风扇
本申请要求在2020年09月01日提交中国专利局、申请号为202021878630.6的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及档位旋钮装置，特别是涉及风扇的档位旋钮装置。
背景技术
相关技术中的档位旋钮装置包含有旋钮，转动旋钮用于带动电器的档位轴转动而实现对电器的开启与关闭的控制和/或档位大小的控制，为匹配于具有不同档位调节需求(对应不同的旋钮旋转角度范围)，需要不同的档位旋钮装置，需要综合性的考虑档位旋钮装置的研发制造成本节约。
发明内容
本申请要解决的技术问题在于改善档位旋钮装置的使用体验。
一种档位旋钮装置，包括凹穴部、至少部分收容于凹穴部的旋钮，所述旋钮可相对于凹穴部转动，所述凹穴部设有第一周向壁、外端口、与外端口相对的基板，所述旋钮由外端口安装至凹穴部，所述基板与第一周向壁之间形成有滑槽，所述旋钮设有卡扣部，所述卡扣部限位于滑槽，伴随着旋钮相对于凹穴部的转动，所述卡扣部沿着滑槽转动。
可选的，所述第一周向壁环绕旋钮的旋转轴线，所述外端口与滑槽位于第一周向壁的相反两侧，所述第一周向壁的远离外端口的边缘与基板之间的间隔形成所述滑槽。
可选的，所述基板的外周呈圆形，所述第一周向壁呈圆环形，所述基板的外径小于第一周向壁的内径，所述第一周向壁的远离外端口的边缘与基板的外周之间的间隔形成所述滑槽。
可选的，所述第一周向壁设有豁口，所述豁口至少将第一周向壁远离外端口的边缘隔断，所述凹穴部还包括连接部，所述连接部连接于基板与外端口之间，所述连接部与豁口相邻，在伴随着旋钮转动的过程中所述卡扣部可从豁口与连接部之间穿过。
可选的，所述连接部包括第一部分、连接于基板与第一部分之间的第二部分，所述第一部分位于对应的豁口的径向外侧，所述豁口位于外端口与第二部 分之间，伴随着旋钮转动的过程中卡扣部可从豁口与第二部分之间穿过。
可选的，所述第二部分的沿着旋钮旋转轴线的投影与第一周向壁的沿着旋钮旋转轴线的投影没有重叠，所述基板的沿着旋钮旋转轴线的投影与第一周向壁的沿着旋钮旋转轴线的投影没有重叠。
可选的，所述第一部分与第二部分连接在一起构成L形，所述第二部分自基板的外周径向向外延伸，所述豁口将第一周向壁在环绕旋钮的旋转轴线的周向上隔断，所述连接部与第一周向壁在环绕旋钮的旋转轴线的周向上完全错开。
可选的，所述外端口设有环形边沿，所述环形边沿环绕旋钮，所述第一部分连接于环形边沿与第二部分之间，所述第一周向壁自环形边沿向基板所在一侧延伸，所述旋钮还设有对应环形边沿的环形帽檐，所述环形帽檐位于旋钮的周向外围，所述卡扣部与环形帽檐位于第一周向壁的相反两侧，所述环形帽檐可向基板所在一侧抵压环形边沿。
可选的，所述旋钮还设有与第一周向壁相嵌套的第二周向壁、弹臂，第一周向壁位于第二周向壁的外围，所述第二周向壁环绕旋钮的旋转轴线，所述第二周向壁设有缺口，所述弹臂位于缺口内，所述卡扣部属于弹臂的一部分，所述卡扣部位于弹臂的远离外端口的一端。
可选的，所述旋钮可相对于凹穴部转动以带动一档位轴旋转，所述档位轴的一端穿过基板并限位于旋钮内。
可选的，所述旋钮的旋转轴线垂直于基板，所述基板设有贯通孔，所述旋钮的旋转轴线穿过贯通孔，所述档位轴通过贯通孔贯穿基板。
可选的，所述凹穴部还设有可用以阻挡旋钮转动的至少一止挡部，所述至少一止挡部设于基板的面向外端口的一侧，所述至少一止挡部一体连接于并且突出于基板。
可选的，所述至少一止挡部包括第一止挡部、第二止挡部，所述旋钮限于一第一角度位置与一第二角度位置之间旋转，所述旋钮旋转至第一角度位置时被第一止挡部止挡，所述旋钮旋转至第二角度位置时被第二止挡部止挡。
可选的，所述旋钮还设有朝向基板延伸的第一干涉部，所述第一止挡部、第二止挡部分别自基板朝向外端口延伸，所述旋钮旋转至第一角度位置时第一干涉部被第一止挡部止挡，所述旋钮旋转至第二角度位置时第一干涉部被第二止挡部止挡。
可选的，第一干涉部与第一止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部及第一止挡部在环绕旋钮的旋转轴线的周向上分别与第二止挡部至少部分重叠。
可选的，所述至少一止挡部包括第一止挡部、第二止挡部、第三止挡部，所述第一止挡部、第二止挡部、第三止挡部分别设于基板的面向外端口的一侧，所述第一止挡部、第二止挡部、第三止挡部分别一体连接于并且突出于基板，所述旋钮限于一第一角度位置与一第三角度位置之间旋转，所述旋钮还设有第一干涉部、第二干涉部，所述旋钮旋转至第一角度位置时第一干涉部被第一止挡部止挡，所述旋钮旋转至第三角度位置时第二干涉部被第三止挡部止挡。
可选的，第一干涉部与第一止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部与第二止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第二干涉部与第三止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开。
可选的，第一止挡部与第二止挡部在环绕旋钮的旋转轴线的周向上相对，第一止挡部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开，第二止挡部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开。
本申请还提供一种风扇，包括前述的档位旋钮装置。
对于本申请，所述卡扣部限位于滑槽，并且伴随着旋钮相对于凹穴部的转动，卡扣部沿着滑槽转动，通过基板与第一周向壁之间形成的滑槽与旋钮的卡扣部的配合，有效抑制旋钮脱离凹穴部，并且旋钮可以较顺畅相对于凹穴部转动，用户使用体验较佳。
附图说明
图1为风扇的一分解图；
图2为风扇的沿着档位轴的一剖视图；
图3为外罩壳一角度的立体图；
图4为外罩壳另一角度的立体图；
图5为外罩壳再一角度的立体图；
图6为旋钮一角度的立体图；
图7为旋钮另一角度的立体图；
图8为旋钮再一角度的立体图；
图9为图2中的档位旋钮装置处的放大图；
图10为档位旋钮装置的剖视放大图(剖面垂直于档位轴)；
图11为去除第二干涉部后的旋钮的一角度的立体图；
图12为去除第二干涉部后的旋钮的另一角度的立体图；
图13为去除第二干涉部后的档位旋钮装置的剖视放大图(剖面垂直于档位轴)。
具体实施方式
参照图1至图10所示的一实施例，其揭示了一种风扇及其所设有的档位旋钮装置，所述档位旋钮装置包括凹穴部1、旋钮2，旋钮2至少部分收容于凹穴部1并可相对于凹穴部1转动，凹穴部1设有第一周向壁10、外端口11、基板12、连接部14，旋钮2与外端口11位于基板12的同一侧，基板12与外端口11相对，基板12与第一周向壁10之间形成有滑槽13，旋钮2设有卡扣部200，卡扣部200限位于滑槽13，伴随着旋钮2相对于凹穴部1的转动，卡扣部200沿着滑槽13转动。对于本实施例，通过基板12与第一周向壁10之间形成的滑槽13与旋钮2的卡扣部200的配合，抑制旋钮2脱离凹穴部1并且促进旋钮2可以较顺畅的与凹穴部1转动配合，用户使用体验佳。
第一周向壁10整体呈圆环形，第一周向壁10环绕旋钮2的旋转轴线，第一周向壁10的远离外端口11的边缘与基板12之间的间隔形成所述滑槽13。基板12的外周呈圆形，基板12的外径小于第一周向壁10的内径，第一周向壁10的远离外端口11的边缘与基板12周向边缘之间的间隔形成所述滑槽13；滑槽13整体呈圆环形。本专利申请中将旋钮2的旋转轴线设定为轴向，本专利申请中的所谓径向是相对于旋钮2的旋转轴线而言的，本专利申请中的所谓周向也是相对于旋钮2的旋转轴线而言的。
第一周向壁10设有豁口100，豁口100自第一周向壁10的远离外端口11的边缘朝向外端口11延伸，豁口100至少将第一周向壁10远离外端口11的边缘隔断，如此设计，可增强第一周向壁10与滑槽13相邻的一侧的可变形性，便于卡扣部200更顺利的卡入滑槽13。
连接部14呈L形，连接部14连接于基板12与外端口11之间，连接部14与豁口100相邻，在伴随着旋钮2转动的过程中卡扣部200可从豁口100与连接部14之间穿过。连接部14包括第一部分140、连接于基板12与第一部分140之间的第二部分141，第一部分140位于对应的豁口100的径向外侧，豁口100位于外端口11与第二部分141之间，伴随着旋钮2转动的过程中卡扣部200可从豁口100与第二部分141之间穿过。第一部分140与第二部分141弯折连接，第一部分140与第二部分141连接构成L形，第一部分140垂直于基板12，第二部分141与基板12共面；第二部分141一体连接于基板12，第二部分141自基板12的外周径向向外延伸。
豁口100将第一周向壁10在环绕旋钮2的旋转轴线的周向上隔断，连接部14与第一周向壁10相间隔，连接部14不会阻碍第一周向壁10的变形，便于卡扣部200卡入滑槽13。本实施例中第一周向壁10被四个豁口100隔断为四段，四个豁口100对应四个连接部14，四个豁口100、四个连接部14分别均匀分布在围绕旋钮2的旋转轴线的圆周上，连接部14与第一周向壁10在环绕旋钮2的旋转轴线的周向上完全错开。
外端口11设有环形边沿110，第一部分140一体连接于环形边沿110，第一部分140自环形边沿110向基板12所在一侧延伸，环形边沿110环绕旋钮2，第一周向壁10自环形边沿110向基板12所在一侧延伸，连接部14连接于基板12与环形边沿110之间，旋钮2还设有对应环形边沿110的环形帽檐210，环形帽檐210位于旋钮2的周向外围，环形帽檐210可向基板12所在一侧抵压环形边沿110，例如用户向基板12所在一侧抵压旋钮2，环形帽檐210会抵压于环形边沿110，避免旋钮2被用户过度向内推移，从而避免压坏基板12及基板12内侧的元件；卡扣部200与环形帽檐210位于第一周向壁10的相反两侧，基于环形帽檐210及卡扣部200的存在，旋钮2在轴向上被有效的限位。旋钮2还设有端帽21，端帽21部分位于外端口11内，端帽21包括位于其外侧的旋拧部211，环形帽檐210属于端帽21的一部分，用户可以通过旋拧部211来转动旋钮2。
基板12呈平板状，豁口100的宽度大于第二部分141的宽度，第二部分141的沿着旋钮2旋转轴线的投影与第一周向壁10的沿着旋钮2旋转轴线的投影没有任何重叠，基板12的沿着旋钮2旋转轴线的投影与第一周向壁10的沿着旋钮2旋转轴线的投影没有任何重叠，从而第一周向壁10不妨碍第二部分141、基板12的脱模成型。沿着旋钮2旋转轴线的投影即投射方向平行于旋钮2旋转轴线所得到的投影。第二部分141的沿着旋钮2旋转轴线向外端口11的投影落入外端口11内，基板12的沿着旋钮2旋转轴线向外端口11的投影落入外端口11内。
旋钮2为一体成型的一件式零件，旋钮2还设有弹臂20、第二周向壁22、套筒部23，卡扣部200属于弹臂20的一部分，第二周向壁22与第一周向壁10相嵌套，第一周向壁10位于第二周向壁22的外围，第二周向壁22位于旋钮2的外周，第二周向壁22整体呈圆环形，第二周向壁22设有缺口220，弹臂20位于缺口220内，卡扣部200位于弹臂20的远离外端口11的一端，旋钮2的径向上的相反两侧分别设有一个弹臂20，第二周向壁22及其弹臂20自端帽21向基板12所在一侧延伸。
旋钮2相对于凹穴部1转动时将带动档位轴30旋转，档位轴30的一端穿 过基板12并限位于旋钮2内。档位轴30的转动用于实现对电器(例如风扇)的开关控制和/或档位大小的控制。档位轴30的一端插入于套筒部23，套筒部23内设有第一扁位230，档位轴30的一端设有对应第一扁位230的第二扁位300，基于第一扁位230与第二扁位300的匹配，套筒部23与档位轴30能够有效结合在一起，旋钮2通过套筒部23带动档位轴30转动。档位轴30垂直于基板12，基板12设有贯通孔120，档位轴30通过贯通孔120贯穿基板12，基板12呈圆板状，贯通孔120位于基板12中心位置，旋钮2的旋转轴线垂直于基板12，旋钮2的旋转轴线穿过贯通孔120。
凹穴部1还设有可用以阻挡旋钮2转动的至少一止挡部，所述至少一止挡部设于基板12的面向外端口11的一侧，所述至少一止挡部一体连接于并且突出于基板12，在基板12上布置止挡部不易受限，可以相对自由的进行止挡部的合理布局。
所述至少一止挡部包括第一止挡部150、第二止挡部151、第三止挡部152，第一止挡部150、第二止挡部151、第三止挡部152分别设于基板12的面向外端口11的一侧，第一止挡部150、第二止挡部151、第三止挡部152分别一体连接于并且突出于基板12，第一止挡部150、第二止挡部151、第三止挡部152分别自基板12向外延伸，更具体而言第一止挡部150、第二止挡部151、第三止挡部152分别自基板12向外端口11延伸，旋钮2限于第一角度位置(图中旋钮2处于第一角度位置)与第三角度位置之间旋转，更具体而言，旋钮2的旋转角度被第一止挡部150与第三止挡部152限于第一角度位置与第三角度位置之间；旋钮2还设有第一干涉部240、第二干涉部241，第一干涉部240、第二干涉部241分别朝向基板12延伸；旋钮2旋转至第一角度位置时第一干涉部240被第一止挡部150止挡，旋钮2旋转至第三角度位置时第二干涉部241被第三止挡部152止挡，从而旋钮2的旋转角度限于第一角度位置与第三角度位置之间。
第一止挡部150与第二止挡部151在环绕旋钮2的旋转轴线的周向上相对，第一止挡部150与第三止挡部152在环绕旋钮2的旋转轴线的周向上完全错开，第二止挡部151与第三止挡部152在环绕旋钮2的旋转轴线的周向上完全错开；第一干涉部240与第一止挡部150在环绕旋钮2的旋转轴线的周向上至少部分重叠，从而第一止挡部150可用于止挡第一干涉部240；第一干涉部240与第二止挡部151在环绕旋钮2的旋转轴线的周向上至少部分重叠，从而第二止挡部151可用于止挡第一干涉部240；第二干涉部241与第三止挡部152在环绕旋钮2的旋转轴线的周向上至少部分重叠，从而第三止挡部152可用于止挡第二干涉部241；第一干涉部240与第三止挡部152在环绕旋钮2的旋转轴线的周向上完全错开，从而旋钮2转动的过程中第一干涉部240不会受到第三止挡部152的 止挡。
凹穴部1还设有连接筋位153，连接筋位153将第一止挡部150与第二止挡部151连接，以增强第一止挡部150、第二止挡部151的结构稳定性；旋钮2还设有半环形筋位25，半环形筋位25朝向基板12延伸；第二干涉部241一体连接于半环形筋位25的径向外侧，第一干涉部240、第二干涉部241、半环形筋位25分别自端帽21向基板12延伸，第一止挡部150、第二止挡部151、第三止挡部152分别自基板12朝向端帽21延伸。
根据不同的应用需要，档位旋钮装置也可采用旋钮2’(如图11、图12、图13所示)，旋钮2’与图6、图7、图10所示的旋钮2的区别仅在于：旋钮2’未设有第二干涉部241，旋钮2’为去除了第二干涉部241后的旋钮2；由于旋钮2’没有第二干涉部241，旋钮2’不会被第三止挡部152阻挡在第三角度位置，在这种情况下，旋钮2’的旋转角度范围加大(相对于旋钮2)；旋钮2’(即去除了第二干涉部241的旋钮2)限于第一角度位置与第二角度位置之间旋转，旋钮2’(即去除了第二干涉部241的旋钮2)从第一角度位置向第二角度位置旋转的过程中经过第三角度位置；旋钮2’旋转至第一角度位置时第一干涉部240被第一止挡部150止挡；旋钮2’从第一角度位置旋转至第三角度位置后可继续旋转直到第二角度位置，旋钮2’旋转至第二角度位置时第一干涉部240被第二止挡部151止挡。，若旋钮2没有了第二干涉部241，则旋钮2不会被第三止挡部152阻挡在第三角度位置，也就是说，若是旋钮2去除了第二干涉部241，则旋钮2限于第一角度位置与第二角度位置之间旋转并且旋钮2从第一角度位置旋转至第三角度位置后可继续旋转直到第二角度位置，并且旋钮2旋转至第二角度位置时第一干涉部240被第二止挡部151止挡。
旋钮2、2’、凹穴部1分别采用注塑成型，旋钮2、2’由外端口11安装至凹穴部1，安装时朝向基板12抵推旋钮2、2’可使得卡扣部200嵌入滑槽13；第一角度位置与第三角度位置之间相差约90度，即旋钮2、2’从第一角度位置旋转约90度即可到达第三角度位置；第一角度位置与第二角度位置之间相差约280度，即旋钮2、2’从第一角度位置旋转约280度即可到达第二角度位置。
本领域技术人员在开发档位旋钮装置时，仅仅基于第二干涉部241的存在与否或者说去掉与否，即可产出具有不同的旋转角度范围的两种档位旋钮装置(采用相同的凹穴部1，并分别采用旋钮2与旋钮2’)，以便应用于不同型号的电器，这两种档位旋钮装置的模具的区别可仅在于对应第二干涉部241处，因此区别很小，提升档位旋钮装置的结构设计及模具设计通用性，降低产品开发、制造成本。
重点参图1至图3所示，风扇还包括电机40、由电机40驱动的扇叶41、 后网罩42、前网罩43、筒圈44、支撑架45、把手46、轮子47、前述的档位轴30、暴露于风扇外侧的外罩壳48。外罩壳48为一体成型的一件式零件，凹穴部1为外罩壳48的一部分，外罩壳48遮罩于电机40的后侧，电机40位于扇叶41与外罩壳48之间，扇叶41位于后网罩42与前网罩43之间；风扇工作时由前网罩43向前出风；电机40的额定功率在10w至1000w之间，优选在20w至500w之间，例如40w、50w、70w、95w、125w、150w；扇叶41位于电机40的前侧，凹穴部1是朝向扇叶41凹陷，后网罩42朝向扇叶41凹陷而形成有凹陷空间420，外罩壳48容纳于凹陷空间420，筒圈44环绕扇叶41及电机40，后网罩42、前网罩43分别呈圆盘状，后网罩42的外周固定至筒圈44的后侧，后网罩42遮罩于筒圈44的后侧，前网罩43的外周固定至筒圈44的前侧，前网罩43遮罩于筒圈44的前侧；支撑架45整体呈U形，支撑架45形成有向上的两个支撑臂450，前述的两个支撑臂450连接至筒圈44的相反两侧，把手46位于筒圈44的侧上方并连接于筒圈44，轮子47转动连接于支撑架45。

Claims (19)

  1. 一种档位旋钮装置，包括凹穴部、至少部分收容于凹穴部的旋钮，所述旋钮可相对于凹穴部转动，所述凹穴部设有第一周向壁、外端口、与外端口相对的基板，所述旋钮由外端口安装至凹穴部，所述基板与第一周向壁之间形成有滑槽，所述旋钮设有卡扣部，所述卡扣部限位于滑槽，伴随着旋钮相对于凹穴部的转动，所述卡扣部沿着滑槽转动。
  2. 根据权利要求1所述的档位旋钮装置，其中：所述第一周向壁环绕旋钮的旋转轴线，所述外端口与滑槽位于第一周向壁的相反两侧，所述第一周向壁的远离外端口的边缘与基板之间的间隔形成所述滑槽。
  3. 根据权利要求2所述的档位旋钮装置，其中：所述基板的外周呈圆形，所述第一周向壁呈圆环形，所述基板的外径小于第一周向壁的内径，所述第一周向壁的远离外端口的边缘与基板的外周之间的间隔形成所述滑槽。
  4. 根据权利要求1所述的档位旋钮装置，其中：所述第一周向壁设有豁口，所述豁口至少将第一周向壁远离外端口的边缘隔断，所述凹穴部还包括连接部，所述连接部连接于基板与外端口之间，所述连接部与豁口相邻，在伴随着旋钮转动的过程中所述卡扣部可从豁口与连接部之间穿过。
  5. 根据权利要求4所述的档位旋钮装置，其中：所述连接部包括第一部分、连接于基板与第一部分之间的第二部分，所述第一部分位于对应的豁口的径向外侧，所述豁口位于外端口与第二部分之间，伴随着旋钮转动的过程中卡扣部可从豁口与第二部分之间穿过。
  6. 根据权利要求5所述的档位旋钮装置，其中：所述第二部分的沿着旋钮旋转轴线的投影与第一周向壁的沿着旋钮旋转轴线的投影没有重叠，所述基板的沿着旋钮旋转轴线的投影与第一周向壁的沿着旋钮旋转轴线的投影没有重叠。
  7. 根据权利要求5所述的档位旋钮装置，其中：所述第一部分与第二部分连接在一起构成L形，所述第二部分自基板的外周径向向外延伸，所述豁口将第一周向壁在环绕旋钮的旋转轴线的周向上隔断，所述连接部与第一周向壁在环绕旋钮的旋转轴线的周向上完全错开。
  8. 根据权利要求5所述的档位旋钮装置，其中：所述外端口设有环形边沿，所述环形边沿环绕旋钮，所述第一部分连接于环形边沿与第二部分之间，所述第一周向壁自环形边沿向基板所在一侧延伸，所述旋钮还设有对应环形边沿的环形帽檐，所述环形帽檐位于旋钮的周向外围，所述卡扣部与环形帽檐位于第一周向壁的相反两侧，所述环形帽檐可向基板所在一侧抵压环形边沿。
  9. 根据权利要求1所述的档位旋钮装置，其中：所述旋钮还设有与第一周向壁相嵌套的第二周向壁、弹臂，第一周向壁位于第二周向壁的外围，所述第二 周向壁环绕旋钮的旋转轴线，所述第二周向壁设有缺口，所述弹臂位于缺口内，所述卡扣部属于弹臂的一部分，所述卡扣部位于弹臂的远离外端口的一端。
  10. 根据权利要求1所述的档位旋钮装置，其中：所述旋钮可相对于凹穴部转动以带动一档位轴旋转，所述档位轴的一端穿过基板并限位于旋钮内。
  11. 根据权利要求10所述的档位旋钮装置，其中：所述旋钮的旋转轴线垂直于基板，所述基板设有贯通孔，所述旋钮的旋转轴线穿过贯通孔，所述档位轴通过贯通孔贯穿基板。
  12. 根据权利要求1所述的档位旋钮装置，其中：所述凹穴部还设有可用以阻挡旋钮转动的至少一止挡部，所述至少一止挡部设于基板的面向外端口的一侧，所述至少一止挡部一体连接于并且突出于基板。
  13. 根据权利要求12所述的档位旋钮装置，其中：所述至少一止挡部包括第一止挡部、第二止挡部，所述旋钮限于一第一角度位置与一第二角度位置之间旋转，所述旋钮旋转至第一角度位置时被第一止挡部止挡，所述旋钮旋转至第二角度位置时被第二止挡部止挡。
  14. 根据权利要求13所述的档位旋钮装置，其中：所述旋钮还设有朝向基板延伸的第一干涉部，所述第一止挡部、第二止挡部分别自基板朝向外端口延伸，所述旋钮旋转至第一角度位置时第一干涉部被第一止挡部止挡，所述旋钮旋转至第二角度位置时第一干涉部被第二止挡部止挡。
  15. 根据权利要求14所述的档位旋钮装置，其中：第一干涉部与第一止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部及第一止挡部在环绕旋钮的旋转轴线的周向上分别与第二止挡部至少部分重叠。
  16. 根据权利要求1所述的档位旋钮装置，其中：所述至少一止挡部包括第一止挡部、第二止挡部、第三止挡部，所述第一止挡部、第二止挡部、第三止挡部分别设于基板的面向外端口的一侧，所述第一止挡部、第二止挡部、第三止挡部分别一体连接于并且突出于基板，所述旋钮限于一第一角度位置与一第三角度位置之间旋转，所述旋钮还设有第一干涉部、第二干涉部，所述旋钮旋转至第一角度位置时第一干涉部被第一止挡部止挡，所述旋钮旋转至第三角度位置时第二干涉部被第三止挡部止挡。
  17. 根据权利要求16所述的档位旋钮装置，其中：第一干涉部与第一止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部与第二止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第二干涉部与第三止挡部在环绕旋钮的旋转轴线的周向上至少部分重叠，第一干涉部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开。
  18. 根据权利要求17所述的档位旋钮装置，其中：第一止挡部与第二止挡部在环绕旋钮的旋转轴线的周向上相对，第一止挡部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开，第二止挡部与第三止挡部在环绕旋钮的旋转轴线的周向上完全错开。
  19. 一种风扇，包括根据权利要求1-18任意一项所述的档位旋钮装置。
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