WO2023087460A1 - 防水按键结构和可穿戴设备 - Google Patents

防水按键结构和可穿戴设备 Download PDF

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Publication number
WO2023087460A1
WO2023087460A1 PCT/CN2021/138304 CN2021138304W WO2023087460A1 WO 2023087460 A1 WO2023087460 A1 WO 2023087460A1 CN 2021138304 W CN2021138304 W CN 2021138304W WO 2023087460 A1 WO2023087460 A1 WO 2023087460A1
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WO
WIPO (PCT)
Prior art keywords
hole
button
key
sealing ring
wall
Prior art date
Application number
PCT/CN2021/138304
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English (en)
French (fr)
Inventor
葛力源
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歌尔股份有限公司
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Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2023087460A1 publication Critical patent/WO2023087460A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers

Definitions

  • the present application relates to the technical field of smart wearable products, in particular to a waterproof button structure and wearable devices.
  • function buttons on smart wearable devices such as smart watches and smart bracelets.
  • the function buttons can be pressed and rotated to realize corresponding function selection and switching.
  • the function buttons are also sealed and waterproof accordingly. design.
  • the outer peripheral cover of the function button is provided with a mounting sleeve, and a sealing ring is provided between the function button and the inner peripheral wall of the installation sleeve to prevent external moisture from entering the smart wearable device through the gap between the function button and the inner peripheral wall of the installation sleeve.
  • the gap between the function button and the inner peripheral wall of the installation sleeve is very narrow, the actual contact area between the sealing ring and the function button and the installation sleeve is very small, and the extrusion force of the function button and the installation sleeve on the sealing ring is insufficient, which makes the function button relative to the
  • the sealing ring is very likely to fail to seal, resulting in water leakage between the function key and the inner peripheral wall of the installation sleeve, and the waterproof performance of the function key is not reliable enough.
  • the main purpose of this application is to propose a key waterproof structure, aiming at improving the waterproof reliability of the key structure.
  • this application proposes a waterproof button structure, which is applied to a wearable device, the wearable device has a button hole, and the waterproof button structure includes:
  • An installation sleeve the installation sleeve is installed in the button hole, and the installation sleeve is provided with a through hole;
  • the button is installed in the through hole, and can move along the axial direction of the through hole or rotate relative to the installation sleeve; the outer wall of the button is provided with a first cone along the circumference of the button surface;
  • the first sealing ring, the outer peripheral wall of the first sealing ring is connected with the hole wall of the through hole, the first sealing ring is sleeved on the outer periphery of the button, and the inner wall of the first sealing ring is along the
  • a sealing ring is provided with a second tapered surface in the circumferential direction, and the second tapered surface and the first tapered surface are at least partially abutted and limited.
  • the first sealing ring includes:
  • connection part is arranged in a ring shape, and the outer peripheral wall of the connection part is connected to the hole wall of the through hole;
  • extension part is arranged around the inner peripheral wall of the connection part, the extension part is tapered, and the end of the extension part away from the connection part is provided with a limit hole; the button is passed through the In the limiting hole, the second tapered surface is formed on the inner peripheral wall of the extension part.
  • the wall of the through hole is provided with a dovetail groove, and the dovetail groove is arranged along the circumference of the installation sleeve;
  • the connecting portion is accommodated and limited in the dovetail groove, and the extension portion passes through the notch of the dovetail groove and protrudes into the through hole.
  • the installation sleeve includes:
  • the outer jacket is installed in the button hole, the outer jacket has a through hole, and the hole wall of the through hole is provided with a limiting ring groove;
  • An inner sleeve the inner sleeve is partially accommodated and limited in the limiting ring groove, the inner sleeve is provided with the through hole, and the through hole is coaxially arranged with the through hole.
  • the hole wall of the via hole is provided with a protrusion and a first locking groove along the circumferential direction of the inner sleeve, and the protrusion and the first locking groove are arranged at intervals;
  • the waterproof button structure also includes a spring, one end of the spring is accommodated and limited in the first slot, the other end of the spring passes through the notch of the first slot, and is connected with the first slot.
  • the hole wall of the via hole and the convex part surround to form the limiting ring groove;
  • the key passes through the convex part, and the two ends of the inner sleeve abut against the convex part and the retaining spring respectively.
  • the outer wall of the inner sleeve is provided with a second locking groove along the circumference of the inner sleeve
  • the waterproof button structure also includes a second sealing ring disposed in the second card slot, the second sealing ring partially protrudes from the notch of the second card slot, and is in sealing contact with the outer casing .
  • one end of the jacket is provided with a convex eave, and the convex eaves are arranged around the through hole;
  • the waterproof button structure also includes a lock ring, the lock ring is detachably connected to the end of the jacket away from the eaves, and the eaves and the lock ring are respectively connected to the peripheral edges of the two openings of the key hole. abutment limit.
  • the outer wall of the casing is provided with a third slot along the circumference of the casing
  • the waterproof button structure also includes a third sealing ring arranged in the third card slot, the third sealing ring partially protrudes from the notch of the third card slot, and is in contact with the hole of the button hole. Wall seal abutment.
  • the keys include:
  • a key shaft, the key shaft is disposed in the through hole, and the first tapered surface is disposed on the outer peripheral wall of the key shaft;
  • a key cap the key cap is located outside the key hole, and a limiting groove is provided on the side of the key cap facing away from the key hole;
  • a nut, the nut is arranged in the limiting groove, and the key cap and the nut are screwed to one end of the key shaft protruding from the key hole.
  • the outer wall of the key shaft is provided with a stopper
  • a wearable device which includes:
  • the casing is provided with a cavity and a button hole, and the button hole communicates with the cavity;
  • the key part of the waterproof key structure extends into the cavity through the key hole.
  • the wearable device further includes a first sensor and a second sensor disposed in the cavity;
  • the first sensor is located in the axial direction of the key and is used to detect the axial movement of the key;
  • the second sensor is arranged on one side of the key and is used to detect the rotation of the key.
  • the technical solution of the present application penetrates the installation sleeve in the button hole of the wearable device, so that the button is movably inserted in the through hole of the installation sleeve, and a first sealing ring is provided between the hole wall of the through hole and the outer wall of the button,
  • the second tapered surface on the inner wall of the first sealing ring is at least partially abutted against the first tapered surface on the outer wall of the key to limit the position.
  • the contactable surface area between the first cone surface and the second cone surface is larger, so that when the button moves relative to the mounting sleeve, the button
  • the extrusion force of the first sealing ring is greater, and the mutual pressing force between the first tapered surface of the key and the second tapered surface of the first sealing ring is greater, so that the resistance between the key and the first sealing ring can be improved.
  • the tightness of the connection and the limit, and the reliability of the waterproof seal between the button and the installation sleeve are improved through the first sealing ring.
  • FIG. 1 is a schematic structural diagram of a waterproof button structure and a first sensor and a second sensor in an embodiment of the present application;
  • Fig. 2 is a cross-sectional view of the waterproof button structure in Fig. 1 along the line A-A' in a non-pressed state;
  • Fig. 3 is a cross-sectional view along line A-A' of the waterproof key structure in Fig. 1 in a pressed state;
  • Fig. 4 is an enlarged view of part B in Fig. 3;
  • Fig. 5 is a schematic structural view of the first sealing ring in Fig. 2;
  • FIG. 6 is a schematic structural diagram of a wearable device in an embodiment of the embodiment of the present application.
  • connection and “fixation” should be understood broadly, for example, “fixation” can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • This application proposes a waterproof button structure, which is applied to wearable devices such as smart bracelets and smart watches.
  • the wearable device has a button hole 8a
  • the waterproof button structure includes an installation sleeve 1, a button 2 and a first sealing ring 3, and the installation sleeve 1 is passed through the button
  • the installation sleeve 1 is provided with a through hole 1a
  • the button 2 is penetrated in the through hole 1a, and can move along the axial direction of the through hole 1a or rotate relative to the installation sleeve 1
  • a first tapered surface 211 is provided in the circumferential direction
  • the outer peripheral wall of the first sealing ring 3 is connected to the hole wall of the through hole 1a, the first sealing ring 3 is sleeved on the outer periphery of the button 2, and the inner wall of the first sealing ring 3 is along the 3 is provided with a second tapered surface 321 in the circumferential direction, and the second tapered surface 321 and the first tapered surface 211 are at least partially abutted
  • the button hole 8a can be opened in the housing 8 of the wearable device.
  • the button hole 8a is used to install the installation sleeve 1.
  • the installation sleeve 1 is at least partially accommodated and limited in the button hole 8a, and can be clamped, screwed Connection and other modes are connected and fixed with the shell 8.
  • the installation sleeve 1 is provided with a through hole 1 a along its axial direction, and the through hole 1 a communicates with the cavity for installing the functional module of the wearable device in the housing 8 .
  • the button 2 passes through the through hole 1a of the mounting sleeve 1, and can be detected by the sensor group in the cavity when it rotates or moves along the axial direction of the through hole 1a, and the wearable device can In response to the operation of the button 2, further control the execution terminal such as the display and the speaker to perform actions such as screen display and sound generation to realize information interaction between the wearable device and the user.
  • the button 2 is penetrated in the through hole 1a, the first sealing ring 3 is arranged on the hole wall of the through hole 1a, the middle part of the first sealing ring 3 forms a limiting hole 32a, the button 2 is penetrated in the limiting hole 32a, and It is in sealing contact with the inner wall of the limiting hole 32a.
  • the material of the first sealing ring 3 is rubber, silica gel and other elastic materials, and the first tapered surface 211 on the outer peripheral wall of the button 2 is always in contact with the second tapered surface 321 on the inner peripheral wall of the first sealing ring 3 to display the button. 2 and the waterproof seal between the mounting sleeve 1. Specifically, as shown in FIG. 2 and FIG.
  • the waterproof structure of the button 2 is in the state shown in FIG. 2.
  • the button 2 is under the elastic action of the elastic contact piece in the wearable device , produces a tendency to move toward the outside of the installation sleeve 1 along the axial direction of the installation sleeve 1, so that the first tapered surface 211 on the outer wall of the button 2 pushes upward the second tapered surface 321 on the inner wall of the first sealing ring 3, and the elastic contact piece
  • the elastic force on the button 2 and the friction force between the first tapered surface 211 and the second tapered surface 321 finally reach a balance, the button 2 and the first sealing ring 3 remain relatively static, and most or all of the first tapered surface 211 It abuts against the second tapered surface 321 to limit the position, and the outer peripheral wall of the sealing ring closely abuts and cooperates with the inner peripheral wall of the button 2, so that the sealing ring can prevent external moisture from entering the wearable through the gap between the installation slee
  • the waterproof structure of the button 2 is in the state shown in Figure 3.
  • the button 2 moves into the through hole 1a along the axial direction of the installation sleeve 1 under the action of the pressing force, so that the button 2 is in contact with the limiter.
  • the part where the hole wall of the position hole 32a abuts pushes down the hole wall of the limit hole 32a, so that the first sealing ring 3 is deformed at the periphery of the limit hole 32a, and the second tapered surface 321 is far away from the limit hole 32a.
  • buttons 2 One end is partially separated from the first tapered surface 211, and the end of the second tapered surface 321 close to the limit hole 32a forms a greater resistance to the first tapered surface 211, so that the sealing ring can prevent external moisture from passing through the installation sleeve 1 and The gap between the buttons 2 goes inside the wearable. It can be understood that the button 2 has a certain movable stroke, and cannot be pressed into the cavity without limit, so the effectiveness of the sealing ring can be further ensured to be waterproof by limiting the movable stroke of the button 2 .
  • the first tapered surface 211 is arranged on the outer peripheral wall of the button 2, and the second tapered surface 321 is arranged on the inner peripheral wall of the first sealing ring 3, so that the first sealing ring 3 and the button 2 pass through the first tapered surface 211 and The second tapered surface 321 is in contact, and the contactable surface area between the first tapered surface 211 and the second tapered surface 321 is larger, so that when the button 2 moves relative to the installation sleeve 1, the button 2 squeezes the first sealing ring 3
  • the greater the pressing force the greater the mutual pressing force between the first tapered surface 211 of the button 2 and the second tapered surface 321 of the first sealing ring 3, so that the resistance between the button 2 and the first sealing ring 3 can be improved.
  • the tightness of connection and limit fit, and the reliability of the waterproof seal between the button 2 and the installation sleeve 1 is improved through the first sealing ring 3 .
  • the first sealing ring 3 includes a connecting portion 31 and an extending portion 32; the connecting portion 31 is arranged in a ring shape, and the outer peripheral wall of the connecting portion 31 is connected to the through hole 1a.
  • the hole wall; the extension part 32 is arranged on the inner peripheral wall of the connection part 31, the extension part 32 is tapered, and the end of the extension part 32 away from the connection part 31 is provided with a limit hole 32a; the button 2 is penetrated in the limit hole 32a,
  • the second tapered surface 321 is formed on the inner peripheral wall of the extension portion 32 .
  • the left diagram and the right diagram in FIG. 5 are respectively the state where the first sealing ring 3 is facing up and the back side is facing up.
  • connection part 31 can be connected to the inner peripheral wall of the extension part 32 by clamping, plugging, bonding, etc., and the end of the extension part 32 away from the connection part 31 extends toward the upper opening of the through hole 1a, and the extension part 32 32 is tapered as a whole, the outer peripheral wall of the extension part 32 is an outer conical surface, the inner peripheral wall of the extension part 32 is an inner conical surface, the limiting hole 32a is opened at the apex of the outer conical surface of the extension part 32, and runs through the limiting hole 32a inner cone surface.
  • the key 2 is passed through the limiting hole 32a, and abuts against the hole wall of the limiting hole 32a.
  • connection part 31 and the tapered extension part 32 are arranged so that when the button 2 moves axially, it can push and drive the extension part 32 to deform. form, the hole wall of the limit hole 32a is kept in close contact with the key 2, and the first tapered surface 211 on the outer wall of the key 2 and the second tapered surface 321 of the inner peripheral wall of the first sealing ring 3 are kept in close contact, Therefore, the tightness of abutment and limited fit between the button 2 and the first sealing ring 3 can be improved, and the reliability of the waterproof seal between the button 2 and the installation sleeve 1 can be improved through the first sealing ring 3 .
  • the hole wall of the through hole 1a is provided with a dovetail groove 1b, and the dovetail groove 1b is arranged along the circumference of the installation sleeve 1; In the groove 1b, the extension part 32 extends into the through hole 1a through the notch of the dovetail groove 1b.
  • the overall shape of the connecting portion 31 is adapted to the dovetail groove 1b, for example, the connecting portion 31 may be arranged in a wedge shape.
  • the dovetail groove 1b is an annular groove body, and the dovetail groove 1b has two side walls that are relatively inclined, so that the cross-sectional space of the dovetail groove 1b is gradually narrowed from the bottom wall to the notch, so that the limit of the dovetail groove 1b to the connector can be improved.
  • the reliability of the fixed position prevents the connection part 31 from being loosened from the dovetail groove 1b when the key 2 is pressed against the extension part 32 .
  • the first sealing ring 3 can be integrally formed by injection molding and molding.
  • the mounting sleeve 1 can be placed in the mold where the first sealing ring 3 is formed, and the first sealing ring 3 can be injected into the mounting sleeve 1 by insert injection molding.
  • the dovetail groove 1b is formed inside, so as to save the assembly process of the first sealing ring 3 and the installation sleeve 1, and at the same time improve the tightness and reliability of the connection and fixation of the first sealing ring 3 and the installation sleeve 1.
  • the angle between the extension portion 32 and the axial direction of the through hole 1a is defined as ⁇ , and the axial direction between the first tapered surface 211 and the through hole 1a is defined.
  • the included angle is ⁇ , ⁇ > ⁇ .
  • the key 2 can be controlled by the The pressed state transitions to the unpressed state, and when the button 2 moves upward relative to the first sealing ring 3, the contact surface between the first tapered surface 211 of the outer peripheral wall of the button 2 and the second tapered surface 321 of the inner peripheral wall of the first sealing ring 3 gradually increases.
  • the installation sleeve 1 includes an outer sleeve 11 and an inner sleeve 12, the outer sleeve 11 is inserted in the button hole 8a, the outer sleeve 11 has a via hole 11a, and the via hole 11a
  • the hole wall is provided with a limiting ring groove 11b; the inner sleeve 12 is partially accommodated and limited in the limiting ring groove 11b, and the inner sleeve 12 is provided with a through hole 1a, and the through hole 1a is coaxially arranged with the through hole 11a.
  • the jacket 11 can be connected and fixed to the outer shell 8 of the wearable device by clamping, screwing, etc.
  • the button hole 8a is opened in the outer shell 8 of the wearable device
  • the outer peripheral wall of the jacket 11 is connected to the inner wall of the button hole 8a.
  • the surrounding walls are sealed against each other.
  • the inner sleeve 12 is arranged coaxially with the outer sleeve 11
  • the outer peripheral wall of the first sealing ring 3 is connected with the hole wall of the through hole 1 a of the inner sleeve 12 .
  • the inner sleeve 12 can be processed and formed independently of the outer sleeve 11, so that the inner sleeve 12 can be integrally processed and formed with the first sealing ring 3 by injection molding, After the inner sleeve 12 and the first sealing ring 3 are processed and formed, they can be embedded into the outer sleeve 11 to realize the convenient assembly of the first sealing ring 3 , the inner sleeve 12 and the outer sleeve 11 .
  • the arrangement of the limiting ring groove 11b inside the outer casing 11 can improve the reliability of fixing the inner casing 12 on the outer casing 11, thereby improving the reliability of the limited cooperation between the first sealing ring 3 on the inner casing 12 and the button 2.
  • the hole wall of the via hole 11a is provided with a convex portion 111 and a first locking groove 11c along the circumferential direction of the inner sleeve 12, and the convex portion 111 and the first locking groove 11c are arranged at intervals.
  • the waterproof button structure also includes a jumper 4, one end of the jumper 4 is accommodated and limited in the first slot 11c, the other end of the jumper 4 passes through the notch of the first slot 11c, and is connected with the hole of the via hole 11a
  • the wall and the convex portion 111 enclose to form a limiting ring groove 11b; the button 2 penetrates the convex portion 111, and the two ends of the inner sleeve 12 abut against the convex portion 111 and the retaining spring 4 respectively for limiting.
  • the inner sleeve 12 can be inserted into the through hole 11a of the outer sleeve 11, and one end of the inner sleeve 12 is connected to the protrusion of the hole wall of the through hole 11a.
  • the outer wall of the inner sleeve 12 is provided with a second card slot 12a along the circumference of the inner cover 12;
  • the waterproof button structure also includes a The second sealing ring 5 , the second sealing ring 5 protrudes from the notch of the second locking groove 12 a , and is in sealing contact with the casing 11 .
  • the second sealing ring 5 is always fixed between the outer sleeve 11 and the inner sleeve 12, and has a static waterproof sealing effect on the inner sleeve 12 and the outer sleeve 11 , that is, the second seal ring 5 is used as a static seal ring between the inner sleeve 12 and the outer sleeve 11, so the design of the second seal ring 5 will not have strict surface roughness and shape tolerance requirements, which is beneficial to save the second seal The processing procedure and processing cost of Circle 5.
  • one end of the jacket 11 is provided with a convex eaves 112, and the convex eaves 112 are arranged around the through hole 11a;
  • the waterproof button structure also includes a locking ring 6, which can be The end connected to the housing 11 away from the protruding eaves 112 is detached, and the protruding eaves 112 and the lock ring 6 abut against and limit the peripheral edges of the two openings of the button hole 8a respectively.
  • the lock ring 6 can be detachably connected to the outer casing 11 by means of screw connection, clamping, etc.
  • the convex eaves 112 will abut against the periphery of the button hole 8a, and the lock will The ring 6 is installed and fixed on the end of the jacket 11 away from the protruding eaves 112, so that the lock ring 6 cooperates with the protruding eaves 112 to install and fix the jacket 11 on the shell 8 of the wearable device, so that the jacket 11 can be quickly mounted on the shell 8 of the wearable device. Install.
  • the inner peripheral wall of the lock ring 6 is provided with internal threads, and the outer peripheral wall of the end of the outer casing 11 away from the protruding eaves 112 is provided with external threads. Tightening or loosening the lock ring 6 can realize the convenient installation or removal of the outer shell 11 on the shell 8 of the wearable device.
  • the outer wall of the casing 11 is provided with a third card slot 11d along the circumference of the cover 11;
  • the sealing ring 7 and the third sealing ring 7 partially protrude from the notch of the third locking groove 11d, and are in sealing contact with the hole wall of the button hole 8a.
  • the third sealing ring 7 can be provided between the outer wall of the jacket 11 and the hole wall of the button hole 8a, so that the waterproof seal between the jacket 11 and the outer shell 8 of the wearable device can be realized, preventing external moisture from passing through.
  • the gap between the outer wall of the casing 11 and the hole wall of the button hole 8a enters into the wearable device. Because when the button 2 is pressed and rotated, the outer shell 11 and the outer shell 8 of the wearable device remain relatively fixed, and the third sealing ring 7 is always fixed between the outer shell 11 and the outer shell 8 of the wearable device, and the outer shell 11 and the wearable device are relatively fixed.
  • the outer casing 8 plays a static waterproof sealing effect, that is, the third sealing ring is used as a static sealing ring between the outer casing 11 and the outer casing 8 of the wearable device, so the design of the third sealing ring 7 will not have strict surface roughness and The shape and position tolerance requirements are beneficial to save the processing procedure and processing cost of the third sealing ring 7 .
  • the button 2 includes a key shaft 21, a key cap 22 and a nut 23, the key shaft 21 is disposed in the through hole 1a, and the first tapered surface 211 is disposed on the The peripheral wall of the key shaft 21; the keycap 22 is positioned at the outside of the button hole 8a, and the side of the keycap 22 facing away from the button hole 8a is provided with a limiting groove 22a; the nut 23 is located in the limiting groove 22a, and the keycap 22 and the nut 23 are connected to the One end of the key shaft 21 protruding from the key hole 8a is screwed.
  • the keycap 22 of the button 2 is used for the user to press and operate, and the nut 23 is used to securely lock the keycap 22 to the key shaft 21.
  • the keycap 22 and the nut 23 of the button 2 are screwed together
  • the key shaft 21 of the key 2 is fixed, the key cap 22 of the key 2 and the nut 23 of the key 2 are equivalent to the two nuts 23 screwed on the key shaft 21, so that the anti-loosening principle of the double nuts 23 can be used to effectively prevent the key 2 from loosening. Ensure the reliability of button 2 when used.
  • the setting of the upper limit groove 22a of the keycap 22 provides accommodating space for the nut 23, so that the nut 23 can be implicitly arranged in the limit groove 22a without protruding from the notch of the limit groove 22a.
  • the key can be lifted. 2
  • the aesthetics of the outer tube on the other hand, can avoid the problem that the nut 23 is accidentally touched and rotated and separated from the key shaft 21, resulting in the key 2 becoming loose.
  • the outer wall of the key shaft 21 is provided with a stopper 212; when the key cap 22 and the nut 23 are connected to the key shaft 21, the key cap 22 faces away from the nut 23 One side abuts against the stopper 212 for limiting.
  • the nut 23 when the nut 23 is tightened, the nut 23 can cooperate with the stop part 212 to clamp the bottom wall of the limit limit groove 22a, that is, the nut 23 and the stop part 212 can cooperate to clamp the limit keycap 22. Partial structure, so that the keycap 22 can be locked through the cooperation of the nut 23 and the stopper 212 , so as to realize the stable installation of the keycap 22 on the key shaft 21 .
  • the side of the keycap 22 facing away from the nut 23 is provided with an escape groove.
  • the stop part 212 is located in the escape groove, and the setting of the escape groove
  • An accommodation space is provided for the stopper part 212, so that the nut 23 and the stopper part 212 are accommodated in the limit groove 22a and the avoidance groove on both sides of the keycap 22, so that the number of nuts 23 and the keycap 22 can be reduced.
  • the overall thickness of the stopper portion 212 after assembly reduces the overall volume of the button 2 .
  • the side wall of the escape groove can also slide against the outer wall of the convex eaves 112, so that the movement of the key shaft 21 can be guided through the cooperation of the convex eaves 112 and the escape groove, and the lifting The smoothness of the movement when button 2 is pressed.
  • the present application also proposes a wearable device, which includes but is not limited to a smart watch or a smart bracelet.
  • the wearable device includes a housing 8 and the waterproof button structure in the above embodiment, the housing 8 is provided with a cavity and a button hole 8a, and the button hole 8a It communicates with the cavity; the key 2 part of the waterproof key structure extends into the cavity through the key hole 8a.
  • the button hole 8a is used to install the installation sleeve 1, and the installation sleeve 1 is at least partially accommodated and limited in the button hole 8a, and can be connected and fixed with the housing 8 by clamping, screwing and other means.
  • the installation sleeve 1 is provided with a through hole 1 a along its axial direction, and the through hole 1 a communicates with the cavity for installing the functional module of the wearable device in the housing 8 .
  • the button 2 passes through the through hole 1a of the mounting sleeve 1, and can be detected by the sensor group in the cavity when it rotates or moves along the axial direction of the through hole 1a, and the wearable device can In response to the operation of the button 2, further control the execution terminal such as the display and the speaker to perform actions such as screen display and sound generation to realize information interaction between the wearable device and the user.
  • the specific structure of the waterproof button structure in this embodiment refers to the above-mentioned embodiments. Since this wearable device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments. This will not repeat them one by one.
  • the wearable device further includes a first sensor 9 and a second sensor 10 arranged in the cavity;
  • the axial direction of the button 2 is used to detect the axial movement of the button 2;
  • the second sensor 10 is arranged on one side of the button 2 and used to detect the rotation of the button 2.
  • the wearable device has a sensing function when the key 2 is pressed and a sensing function when the key 2 is rotated, wherein the sensing function of pressing the key 2 is realized by the first sensor 9, and the sensing function of the rotating key 2 is realized by the second sensor 9.
  • the sensor 10 is implemented. Specifically, when the key 2 is subjected to pressing force and moves axially, the key 2 moves close to the first sensor 9, and the key 2 can contact and squeeze the elastic contact piece on the sensor, so that the first sensor 9 detects the pressing of the key 2.
  • the button 2 squeezes and drives the first sealing ring 3 to deform, so that the peripheral edge of the limiting hole 32a on the sealing ring is deformed, so that the position of the second tapered surface 321 close to the limiting hole 32a is aligned with the first tapered surface. 211 abuts against the limit position to realize the waterproof sealing of the button 2 .
  • the elastic contact piece recovers elastically and pushes the button 2 to reset, so that the contact area between the first tapered surface 211 on the button 2 and the second tapered surface 321 on the sealing ring gradually increases, realizing the button 2 waterproof seals.
  • the setting of the first sensor 9 and the second sensor 10 enables the wearable device to sense the action of the button 2 in a timely and accurate manner, and then respond to the operation of the button 2 by the user in a timely and accurate manner.
  • the first sensor 9 can be a touch sensor
  • the second sensor 10 can be a photoelectric sensor, a grating sensor, or the like.

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Abstract

本申请涉及智能穿戴产品技术领域，本申请公开一种防水按键结构和可穿戴设备，该可穿戴设备具有按键孔，所述防水按键结构包括安装套、按键以及第一密封圈，所述安装套穿设于按键孔内，所述安装套设有通孔；所述按键穿设于所述通孔内，并可沿所述通孔的轴向方向移动或相对于所述安装套转动；所述按键的外壁沿所述按键的周向设有第一锥面；所述第一密封圈的外周壁与所述通孔的孔壁连接，所述第一密封圈套设于所述按键的外周，所述第一密封圈的内壁沿所述第一密封圈的周向设有第二锥面，所述第二锥面与所述第一锥面至少部分抵接限位。本申请提出的防水按键结构的防水可靠性更高。

Description

防水按键结构和可穿戴设备
本申请要求于2021年11月18日提交中国专利局、申请号为202111372867.6、发明名称为“防水按键结构和可穿戴设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智能穿戴产品技术领域，特别涉及一种防水按键结构和可穿戴设备。
背景技术
目前智能手表、智能手环等智能穿戴设备上设有功能按键，功能按键具可通过按压和旋转实现相应的功能选择和切换，同时为了满足智能穿戴设备的防水功能，功能按键也相应进行密封防水设计。
在相关技术中，功能按键外周套设有安装套，功能按键和安装套的内周壁之间设置密封圈，以防止外界的水分通过功能按键和安装套内周壁之间的间隙进入智能穿戴设备内。因为功能按键和安装套内周壁之间的间隙十分狭窄，密封圈与功能按键和安装套的实际接触面积很小，功能按键和安装套对密封圈的挤压力不足，这导致功能按键相对于安装套转动或沿安装套的轴向方向移动时，密封圈非常容易密封失效，而致使功能按键和安装套内周壁之间出现水分渗漏，功能按键的防水性能不够可靠。
发明内容
本申请的主要目的是提出一种按键防水结构，旨在提升按键结构防水的可靠性。
为实现上述目的，本申请提出了一种防水按键结构，应用于可穿戴设备，所述可穿戴设备具有按键孔，所述防水按键结构包括：
安装套，所述安装套穿设于按键孔内，所述安装套设有通孔；
按键，所述按键穿设于所述通孔内，并可沿所述通孔的轴向方向移动或相对于所述安装套转动；所述按键的外壁沿所述按键的周向设有第一锥面；及
第一密封圈，所述第一密封圈的外周壁与所述通孔的孔壁连接，所述第一密封圈套设于所述按键的外周，所述第一密封圈的内壁沿所述第一密封圈的周向设有第二锥面，所述第二锥面与所述第一锥面至少部分抵接限位。
在本申请的一实施例中，所述第一密封圈包括：
连接部，所述连接部呈环形设置，所述连接部的外周壁连接所述通孔的孔壁；和
延伸部，所述延伸部环设于所述连接部的内周壁，所述延伸部呈锥形设置，所述延伸部远离所述连接部的一端设有限位孔；所述按键穿设于所述限位孔内，所述第二锥面形成于所述延伸部的内周壁。
在本申请的一实施例中，所述通孔的孔壁设有燕尾槽，所述燕尾槽沿所述安装套的周向设置；
所述连接部容纳并限位于所述燕尾槽内，所述延伸部穿过所述燕尾槽的槽口伸入所述通孔内。
在本申请的一实施例中，定义所述延伸部与所述通孔的轴向方向的夹角为α，定义所述第一锥面与所述通孔的轴向方向的夹角为β，α＞β。
在本申请的一实施例中，所述安装套包括：
外套，所述外套穿设于所述按键孔内，所述外套具有过孔，所述过孔的孔壁设有限位环槽；和
内套，所述内套部分容纳并限位于所述限位环槽内，所述内套设有所述通孔，所述通孔与所述过孔同轴设置。
在本申请的一实施例中，所述过孔的孔壁沿所述内套的周向设有凸部和第一卡槽，所述凸部和所述第一卡槽间隔设置；
所述防水按键结构还包括卡簧，所述卡簧的一端容纳并限位于所述第一卡槽内，所述卡簧的另一端穿过所述第一卡槽的槽口，并与所述过孔的孔壁和所述凸部围合形成所述限位环槽；
所述按键贯穿所述凸部，所述内套的两端分别与所述凸部和所述卡簧抵接限位。
在本申请的一实施例中，所述内套的外壁沿所述内套的周向设有第二卡槽；
所述防水按键结构还包括设于所述第二卡槽内的第二密封圈，所述第二 密封圈部分凸出于所述第二卡槽的槽口，并与所述外套密封抵接。
在本申请的一实施例中，所述外套的一端设有凸檐，所述凸檐环绕所述过孔设置；
所述防水按键结构还包括锁环，所述锁环可拆卸连接于所述外套远离所述凸檐的一端，所述凸檐和所述锁环分别与所述按键孔的两个开口的周缘抵接限位。
在本申请的一实施例中，所述外套的外壁沿所述外套的周向设有第三卡槽；
所述防水按键结构还包括设于所述第三卡槽内的第三密封圈，所述第三密封圈部分凸出于所述第三卡槽的槽口，并与所述按键孔的孔壁密封抵接。
在本申请的一实施例中，所述按键包括：
键轴，所述键轴穿设于所述所述通孔内，所述第一锥面设于所述键轴的外周壁；
键帽，所述键帽位于所述按键孔外侧，所述键帽背向所述按键孔的一侧设有限位槽；及
螺母，所述螺母设于所述限位槽内，所述键帽和所述螺母与所述键轴伸出所述按键孔的一端螺接。
在本申请的一实施例中，所述键轴的外壁设有止挡部；
所述键帽和所述螺母与所述键轴连接时，所述键帽背向所述螺母的一侧与所述止挡部抵接限位。
此外，本申请还提出一种可穿戴设备，所述可穿戴设备包括：
外壳，所述外壳设有容腔和按键孔，所述按键孔与所述容腔连通；和
上述的防水按键结构，所述防水按键结构的按键部分穿过所述按键孔伸入所述容腔内。
在本申请的一实施例中，所述可穿戴设备还包括设于所述容腔内的第一传感器和第二传感器；
所述第一传感器位于所述按键的轴向方向上，并用于检测所述按键的轴向移动；
所述第二传感器设于所述按键的一侧，并用于检测所述按键的转动。
本申请技术方案通过在可穿戴设备的按键孔内穿设安装套，使按键活动 穿设于安装套的通孔内，并在通孔的孔壁和按键的外壁之间设置第一密封圈，使第一密封圈内壁上的第二锥面至少部分与按键外壁的第一锥面抵接限位。以此，按键在不被按压时，第一密封圈可不产生形变，第一密封圈内壁上的第二锥面可与按键外壁上的第一锥面完全抵接限位，实现按键与安装套之间的防水密封。按键被按压，按键相对于安装套沿安装套的轴向方向移动时，按键的外壁将挤压并带动第一密封圈形变，使第一密封圈内壁上的第二锥面与按键外壁上的第一锥面部分抵接限位，同样能够实现按键与安装套之间的防水密封。因为第一密封圈和按键通过第一锥面和第二锥面进行接触，第一锥面和第二锥面之间可接触的表面面积更大，使按键相对于安装套活动时，按键对第一密封圈的挤压作用力更大，按键的第一锥面和第一密封圈的第二锥面之间的相互抵紧力更大，从而能够提升按键和第一密封圈之间抵接和限位的紧密性，通过第一密封圈提升按键和安装套之间防水密封的可靠性。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一部分附图，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请实施例中防水按键结构及第一传感器和第二传感器的结构示意图；
图2为图1中防水按键结构在非按压状态下沿A-A’线的剖面图；
图3为图1中防水按键结构在按压状态下沿A-A’线的剖面图；
图4为图3中B部分的放大图；
图5为图2中第一密封圈的结构示意图；
图6为本申请实施例中可穿戴设备在一实施例中的结构示意图。
附图标号说明：
标号 名称 标号 名称
1 安装套 22 键帽
11 外套 22a 限位槽
111 凸部 23 螺母
112 凸檐 3 第一密封圈
11a 过孔 31 连接部
11b 限位环槽 32 延伸部
11c 第一卡槽 321 第二锥面
11d 第三卡槽 32a 限位孔
12 内套 4 卡簧
12a 第二卡槽 5 第二密封圈
1a 通孔 6 锁环
1b 燕尾槽 7 第三密封圈
2 按键 8 外壳
21 键轴 8a 按键孔
211 第一锥面 9 第一传感器
212 止挡部 10 第二传感器
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示(诸如上、下、左、右、前、后……)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、运动情况等，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。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况 理解上述术语在本申请中的具体含义。
另外，在本申请中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。全文中出现的“和/或”、“且/或”的含义相同，均表示包括三个并列的方案，以“A且/或B为例”，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出了一种防水按键结构，应用于智能手环、智能手表等可穿戴设备。
在本申请的一实施例中，结合图1和图2所示，可穿戴设备具有按键孔8a，防水按键结构包括安装套1、按键2以及第一密封圈3，安装套1穿设于按键孔8a内，安装套1设有通孔1a；按键2穿设于通孔1a内，并可沿通孔1a的轴向方向移动或相对于安装套1转动；按键2的外壁沿按键2的周向设有第一锥面211；第一密封圈3的外周壁与通孔1a的孔壁连接，第一密封圈3套设于按键2的外周，第一密封圈3的内壁沿第一密封圈3的周向设有第二锥面321，第二锥面321与第一锥面211至少部分抵接限位。
在本实施例中，按键孔8a可开设于可穿戴设备的外壳8，按键孔8a用于安装安装套1，安装套1至少部分容纳并限位于按键孔8a内，并可通过卡接、螺接等方式与外壳8连接固定。安装套1沿其轴向方向开设有通孔1a，通孔1a与外壳8内用于安装可穿戴设备的功能模块的容腔连通。按键2穿过安装套1的通孔1a，并可在转动或沿通孔1a的轴向移动时被容腔内的传感器组检测到，而通过与传感器组电连接的功能模块使穿戴设备能够响应按键2的操作，进一步控制显示器、扬声器等执行终端相应执行画面显示、发声等动作，实现可穿戴设备与用户之间的信息交互。
按键2穿设于通孔1a内，第一密封圈3设于通孔1a的孔壁，第一密封圈3的中部形成有限位孔32a，按键2穿设于该限位孔32a内，并与限位孔32a的内壁密封抵接。第一密封圈3的材质为橡胶、硅胶等弹性材质，按键2 外周壁上的第一锥面211始终与第一密封圈3内周壁上的第二锥面321抵接限位，以显示按键2和安装套1之间的防水密封。具体地，结合图2和图3所示，按键2在非被按压的情况下，按键2防水结构处于图2所示状态，此时按键2在可穿戴设备内的弹性触片的弹性作用下，产生沿安装套1的轴向方向向安装套1外侧移动的趋势，使按键2外壁上的第一锥面211向上挤推第一密封圈3内壁上的第二锥面321，弹性触片对按键2的弹性作用力与第一锥面211和第二锥面321间的摩擦力最终达到平衡，按键2与第一密封圈3保持相对静止，第一锥面211的大部分或者全部表面与第二锥面321抵接限位，密封圈的外周壁与按键2的内周壁紧密抵接配合，以此可通过密封圈阻止外界水分通过安装套1和按键2之间的间隙进入可穿戴设备内。按键2在被按压的情况下，按键2防水结构处于图3所示状态，此时按键2在按压力作用下，沿安装套1的轴向方向向通孔1a内移动，使按键2与限位孔32a孔壁抵接的部位向下挤推限位孔32a的孔壁，而使第一密封圈3在限位孔32a周缘的部分产生形变，第二锥面321远离限位孔32a的一端与第一锥面211部分脱离，第二锥面321靠近限位孔32a的一端则对第一锥面211形成更大的抵紧力，从而能够通过密封圈阻止外界水分通过安装套1和按键2之间的间隙进入可穿戴设备内。可理解的，按键2具有一定的活动行程，而不可被无限制地向容腔内按压，因此还可以通过限制按键2的活动行程来进一步保证密封圈防水的有效性。
本实施例方案通过在按键2的外周壁设置第一锥面211，在第一密封圈3的内周壁设置第二锥面321，使第一密封圈3和按键2通过第一锥面211和第二锥面321进行接触，第一锥面211和第二锥面321之间可接触的表面面积较大，使按键2相对于安装套1活动时，按键2对第一密封圈3的挤压作用力更大，按键2的第一锥面211和第一密封圈3的第二锥面321之间的相互抵紧力更大，从而能够提升按键2和第一密封圈3之间抵接和限位配合的紧密性，通过第一密封圈3提升按键2和安装套1之间防水密封的可靠性。
在本申请的一实施例中，结合图2和图5所示，第一密封圈3包括连接部31和延伸部32；连接部31呈环形设置，连接部31的外周壁连接通孔1a的孔壁；延伸部32环设于连接部31的内周壁，延伸部32呈锥形设置，延伸部32远离连接部31的一端设有限位孔32a；按键2穿设于限位孔32a内，第 二锥面321形成于延伸部32的内周壁。其中，图5中的左图和右图分别为第一密封圈3正面朝上和反面朝上的状态。
在本实施例中，连接部31可通过卡接、插接、粘接等方式与延伸部32的内周壁连接，延伸部32远离连接部31的一端朝向通孔1a的上开口延伸，延伸部32整体呈锥形，延伸部32的外周壁为外锥面，延伸部32的内周壁为内锥面，限位孔32a开设于延伸部32外锥面的顶点处，并贯穿限位孔32a的内锥面。按键2穿设于限位孔32a内，并与限位孔32a的孔壁抵接。连接部31和锥形的延伸部32的设置，使按键2轴向移动时，能够挤推和带动延伸部32形变，延伸部32在限位孔32a周缘的部位能够通过轻微外翻或内翻的形式，使限位孔32a的孔壁与按键2保持紧密抵接，并使按键2外壁上的第一锥面211和第一密封圈3内周壁的第二锥面321保持紧密抵接，从而能够提升按键2和第一密封圈3之间抵接和限位配合的紧密性，通过第一密封圈3提升按键2和安装套1之间防水密封的可靠性。
在本申请的一实施例中，结合图2和图3所示，通孔1a的孔壁设有燕尾槽1b，燕尾槽1b沿安装套1的周向设置；连接部31容纳并限位于燕尾槽1b内，延伸部32穿过燕尾槽1b的槽口伸入通孔1a内。
在本实施例中，连接部31的整体形状与燕尾槽1b相适配，比如连接部31可呈楔形设置。燕尾槽1b为环形槽体，燕尾槽1b具有相对倾斜设置的两个侧壁，使燕尾槽1b的截面空间由底壁向槽口处逐渐收窄，以此能够提升燕尾槽1b对连接件限位固定的可靠性，防止按键2挤压延伸部32时，连接部31从燕尾槽1b内松脱。第一密封圈3可通过注塑和模压方式一体成型，比如可将安装套1置于第一密封圈3成型的模具内，通过嵌件注塑的方式将第一密封圈3注塑到安装套1的燕尾槽1b内成型，以此节省第一密封圈3和安装套1的组装程序，同时提升第一密封圈3与安装套1连接固定的紧密性和可靠性。
在本申请的一实施例中，结合图3和图4所示，定义延伸部32与通孔1a的轴向方向的夹角为α，定义第一锥面211与通孔1a的轴向方向的夹角为β，α＞β。
在本实施例中，通过将延伸部32与通孔1a的轴向方向的夹角α设置为大于第一锥面211与通孔1a的轴向方向的夹角β，可使按键2由被按压状态 过渡到未被按压状态，按键2相对第一密封圈3向上移时，按键2外周壁的第一锥面211和第一密封圈3内周壁的第二锥面321的接触面逐渐增大，保证了按键2从被按压状态过渡到未被按压状态过程中，按键2与第一密封圈3之间相互挤压力逐渐增大，提升按键2与第一密封圈3之间密封配合的可靠性。
在本申请的一实施例中，结合图2和图3所示，安装套1包括外套11和内套12，外套11穿设于按键孔8a内，外套11具有过孔11a，过孔11a的孔壁设有限位环槽11b；内套12部分容纳并限位于限位环槽11b内，内套12设有通孔1a，通孔1a与过孔11a同轴设置。
在本实施例中，外套11可通过卡接、螺接等方式与可穿戴设备的外壳8连接固定，按键孔8a开设于可穿戴设备的外壳8，外套11的外周壁与按键孔8a的内周壁密封抵接。内套12与外套11同轴设置，第一密封圈3的外周壁与内套12的通孔1a的孔壁连接。通过将安装套1设置为外套11和内套12相互嵌套的结构，能够使内套12可独立于外套11加工成型，使内套12能够与第一密封圈3通过注塑方式一体加工成型，内套12和第一密封圈3加工成型后可通过嵌设的方式置入外套11内，实现第一密封圈3、内套12以及外套11的便捷组装。外套11内侧限位环槽11b的设置，能够提升内套12在外套11上固定的可靠性，从而提升内套12上的第一密封圈3与按键2限位配合的可靠性。
在本申请的一实施例中，结合图2和图3所示，过孔11a的孔壁沿内套12的周向设有凸部111和第一卡槽11c，凸部111和第一卡槽11c间隔设置；防水按键结构还包括卡簧4，卡簧4的一端容纳并限位于第一卡槽11c内，卡簧4的另一端穿过第一卡槽11c的槽口，并与过孔11a的孔壁和凸部111围合形成限位环槽11b；按键2贯穿凸部111，内套12的两端分别与凸部111和卡簧4抵接限位。
在本实施例中，第一密封圈3和内套12一体加工成型后，可将内套12置入外套11的过孔11a内，并使内套12的一端与过孔11a孔壁的凸部111抵接限位，再将卡簧4置入第一卡槽11c内限位固定，使内套12的两端分别与凸部111和卡簧4抵接限位，内套12的外周壁与外套11过孔11a的孔壁抵接限位，如此实现内套12在外套11内的可靠安装和固定，同时完成第一 密封圈3、内套12以及外套11的便捷组装。
在本申请的一实施例中，结合图2和图3所示，内套12的外壁沿内套12的周向设有第二卡槽12a；防水按键结构还包括设于第二卡槽12a内的第二密封圈5，第二密封圈5部分凸出于第二卡槽12a的槽口，并与外套11密封抵接。
在本实施例中，通过在内套12的外壁和外套11过孔11a的孔壁之间设置第二密封圈5，能实现内套12和外套11之间的防水密封，避免外界的水分通过内套12和外套11之间的间隙进入可穿戴设备内。因为在按键2按压和转动时，内套12和外套11保持相对固定，第二密封圈5始终固定于外套11和内套12之间，对内套12和外套11起到静态的防水密封效果，即第二密封圈5作为内套12和外套11之间的静密封圈，所以第二密封圈5的设计不会有严苛的表面粗糙度和形位公差要求，有利于节省第二密封圈5的加工程序和加工成本。
在本申请的一实施例中，结合图2和图3所示，外套11的一端设有凸檐112，凸檐112环绕过孔11a设置；防水按键结构还包括锁环6，锁环6可拆卸连接于外套11远离凸檐112的一端，凸檐112和锁环6分别与按键孔8a的两个开口的周缘抵接限位。
在本实施例中，锁环6可通过螺接、卡接等方式与外套11可拆卸连接，外套11置于按键孔8a内时，凸檐112与按键孔8a的周缘抵接，通过将锁环6安装固定于外套11远离凸檐112的一端，使锁环6与凸檐112配合将外套11安装固定于可穿戴设备的外壳8，能够实现外套11在可穿戴设备的外壳8上的快捷安装。示例性地，锁环6的内周壁设有内螺纹，外套11远离凸檐112的一端的外周壁设有外螺纹，锁环6可通过内螺纹和外螺纹与外套11螺接，以此通过拧紧或拧松锁环6可实现外套11在可穿戴设备的外壳8上的便捷安装或拆卸。
在本申请的一实施例中，结合图2和图3所示，外套11的外壁沿外套11的周向设有第三卡槽11d；防水按键结构还包括设于第三卡槽11d内的第三密封圈7，第三密封圈7部分凸出于第三卡槽11d的槽口，并与按键孔8a的孔壁密封抵接。
在本实施例中，通过在外套11的外壁和按键孔8a的孔壁之间设置第三 密封圈7，能实现外套11和可穿戴设备的外壳8之间的防水密封，避免外界的水分通过外套11的外壁和按键孔8a的孔壁之间的间隙进入可穿戴设备内。因为在按键2按压和转动时，外套11和可穿戴设备的外壳8保持相对固定，第三密封圈7始终固定于外套11和可穿戴设备的外壳8之间，对外套11和可穿戴设备的外壳8起到静态的防水密封效果，即第三封圈作为外套11和可穿戴设备的外壳8之间的静密封圈，所以第三密封圈7的设计不会有严苛的表面粗糙度和形位公差要求，有利于节省第三密封圈7的加工程序和加工成本。
在本申请的一实施例中，结合图2和图3所示，按键2包括键轴21、键帽22以及螺母23，键轴21穿设于通孔1a内，第一锥面211设于键轴21的外周壁；键帽22位于按键孔8a外侧，键帽22背向按键孔8a的一侧设有限位槽22a；螺母23设于限位槽22a内，键帽22和螺母23与键轴21伸出按键孔8a的一端螺接。
在本实施例中，按键2的键帽22用于供用户按压操作，螺母23用于将键帽22可靠锁附于键轴21，按键2的键帽22和螺母23均采用螺接方式与按键2的键轴21固定，按键2的键帽22和按键2的螺母23相当于螺接于键轴21上的两个螺母23，如此可利用双螺母23防松原理有效防止按键2松动，保证按键2使用时的可靠性。
键帽22上限位槽22a的设置，给螺母23提供了容置空间，使螺母23可隐式设置于限位槽22a内而不具凸出限位槽22a槽口的部分，一方面能够提升按键2外管的美观性，另一方面能够避免螺母23被误触碰转动而与键轴21脱离，导致按键2松动的问题。
在本申请的一实施例中，结合图2和图3所示，键轴21的外壁设有止挡部212；键帽22和螺母23与键轴21连接时，键帽22背向螺母23的一侧与止挡部212抵接限位。
在本实施例中，在拧紧螺母23时，螺母23可与止挡部212配合夹持限位限位槽22a的底壁，即螺母23和止挡部212配合夹持限位键帽22的部分结构，以此通过螺母23和止挡部212的配合可锁定键帽22，实现键帽22在键轴21上的稳固安装。
可选地，键帽22背向螺母23一侧设有避位槽，在螺母23与止挡部212 配合锁紧键帽22时，止挡部212位于避位槽内，避位槽的设置给止挡部212提供了容置空间，从而使螺母23和止挡部212分别容置于键帽22两侧的限位槽22a和避位槽内，以此能够缩减螺母23、键帽22以及止挡部212组装后的整体厚度，降低按键2的整体体积。此外，键轴21轴向移动时，避位槽的侧壁还可与凸檐112的外侧壁滑动抵接，从而通过凸檐112和避位槽的配合对键轴21的移动进行导向，提升按键2被按压移动时的平稳性。
本申请还提出一种可穿戴设备，该可穿戴设备包括但不限位于为智能手表或智能手环。
在本申请的一实施例中，参阅图6并结合图2所示，该可穿戴设备包括外壳8和上述实施例中的防水按键结构，外壳8设有容腔和按键孔8a，按键孔8a与容腔连通；防水按键结构的按键2部分穿过按键孔8a伸入容腔内。
在本实施例中，按键孔8a用于安装安装套1，安装套1至少部分容纳并限位于按键孔8a内，并可通过卡接、螺接等方式与外壳8连接固定。安装套1沿其轴向方向开设有通孔1a，通孔1a与外壳8内用于安装可穿戴设备的功能模块的容腔连通。按键2穿过安装套1的通孔1a，并可在转动或沿通孔1a的轴向移动时被容腔内的传感器组检测到，而通过与传感器组电连接的功能模块使穿戴设备能够响应按键2的操作，进一步控制显示器、扬声器等执行终端相应执行画面显示、发声等动作，实现可穿戴设备与用户之间的信息交互。
本实施例中的防水按键结构的具体结构参照上述实施例，由于本可穿戴设备采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
在本申请的一实施例中，参阅图6并结合图1和图2所示，可穿戴设备还包括设于容腔内的第一传感器9和第二传感器10；第一传感器9位于按键2的轴向方向上，并用于检测按键2的轴向移动；第二传感器10设于按键2的一侧，并用于检测按键2的转动。
在本实施例中，可穿戴设备具有对按键2按压时的感知功能以及对按键2转动时的感知功能，其中按键2按压感知功能通过第一传感器9实现，而按键2转动感知功能通过第二传感器10实现。具体地，当按键2受到按压力而轴向移动时，按键2靠近第一传感器9移动，按键2可接触并挤压传感器 上的弹性触片，而使第一传感器9检测到按键2的挤压作用，此时按键2挤推并带动第一密封圈3形变，使密封圈上的限位孔32a的周缘形变，而使第二锥面321靠近限位孔32a的部位与第一锥面211抵接限位，实现按键2的防水密封。当按键2上的按压作用力撤除时，弹性触片弹性恢复并推动按键2复位，使按键2上的第一锥面211和密封圈上的第二锥面321的接触面积逐渐增加，实现按键2的防水密封。当按键2转动时，按键2外周壁的不同部位经过第二传感器10，第二传感器10检测到按键2反射回的光线变化而感知到按键2的转动。第一传感器9和第二传感器10的设置，使可穿戴设备能够及时准确感知按键2的动作，进而能够及时准确地根据用户对按键2的操作做出响应。其中第一传感器9可为接触式传感器，第二传感器10可以为光电传感器、光栅传感器等。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (13)

  1. 一种防水按键结构，应用于可穿戴设备，所述可穿戴设备具有按键孔，其特征在于，所述防水按键结构包括：
    安装套，所述安装套穿设于按键孔内，所述安装套设有通孔；
    按键，所述按键穿设于所述通孔内，并可沿所述通孔的轴向方向移动或相对于所述安装套转动；所述按键的外壁沿所述按键的周向设有第一锥面；及
    第一密封圈，所述第一密封圈的外周壁与所述通孔的孔壁连接，所述第一密封圈套设于所述按键的外周，所述第一密封圈的内壁沿所述第一密封圈的周向设有第二锥面，所述第二锥面与所述第一锥面至少部分抵接限位。
  2. 如权利要求1所述的防水按键结构，其特征在于，所述第一密封圈包括：
    连接部，所述连接部呈环形设置，所述连接部的外周壁连接所述通孔的孔壁；和
    延伸部，所述延伸部环设于所述连接部的内周壁，所述延伸部呈锥形设置，所述延伸部远离所述连接部的一端设有限位孔；所述按键穿设于所述限位孔内，所述第二锥面形成于所述延伸部的内周壁。
  3. 如权利要求2所述的防水按键结构，其特征在于，所述通孔的孔壁设有燕尾槽，所述燕尾槽沿所述安装套的周向设置；
    所述连接部容纳并限位于所述燕尾槽内，所述延伸部穿过所述燕尾槽的槽口伸入所述通孔内。
  4. 如权利要求2所述的防水按键结构，其特征在于，定义所述延伸部与所述通孔的轴向方向的夹角为α，定义所述第一锥面与所述通孔的轴向方向的夹角为β，α＞β。
  5. 如权利要求1至4中任一项所述的防水按键结构，其特征在于，所述安装套包括：
    外套，所述外套穿设于所述按键孔内，所述外套具有过孔，所述过孔的孔壁设有限位环槽；和
    内套，所述内套部分容纳并限位于所述限位环槽内，所述内套设有所述 通孔，所述通孔与所述过孔同轴设置。
  6. 如权利要求5所述的防水按键结构，其特征在于，所述过孔的孔壁沿所述内套的周向设有凸部和第一卡槽，所述凸部和所述第一卡槽间隔设置；
    所述防水按键结构还包括卡簧，所述卡簧的一端容纳并限位于所述第一卡槽内，所述卡簧的另一端穿过所述第一卡槽的槽口，并与所述过孔的孔壁和所述凸部围合形成所述限位环槽；
    所述按键贯穿所述凸部，所述内套的两端分别与所述凸部和所述卡簧抵接限位。
  7. 如权利要求5所述的防水按键结构，其特征在于，所述内套的外壁沿所述内套的周向设有第二卡槽；
    所述防水按键结构还包括设于所述第二卡槽内的第二密封圈，所述第二密封圈部分凸出于所述第二卡槽的槽口，并与所述外套密封抵接。
  8. 如权利要求5所述的防水按键结构，其特征在于，所述外套的一端设有凸檐，所述凸檐环绕所述过孔设置；
    所述防水按键结构还包括锁环，所述锁环可拆卸连接于所述外套远离所述凸檐的一端，所述凸檐和所述锁环分别与所述按键孔的两个开口的周缘抵接限位。
  9. 如权利要求5所述的防水按键结构，其特征在于，所述外套的外壁沿所述外套的周向设有第三卡槽；
    所述防水按键结构还包括设于所述第三卡槽内的第三密封圈，所述第三密封圈部分凸出于所述第三卡槽的槽口，并与所述按键孔的孔壁密封抵接。
  10. 如权利要求1至4中任一项所述的防水按键结构，其特征在于，所述按键包括：
    键轴，所述键轴穿设于所述所述通孔内，所述第一锥面设于所述键轴的外周壁；
    键帽，所述键帽位于所述按键孔外侧，所述键帽背向所述按键孔的一侧设有限位槽；及
    螺母，所述螺母设于所述限位槽内，所述键帽和所述螺母与所述键轴伸出所述按键孔的一端螺接。
  11. 如权利要求10所述的防水按键结构，其特征在于，所述键轴的外壁 设有止挡部；
    所述键帽和所述螺母与所述键轴连接时，所述键帽背向所述螺母的一侧与所述止挡部抵接限位。
  12. 一种可穿戴设备，其特征在于，所述可穿戴设备包括：
    外壳，所述外壳设有容腔和按键孔，所述按键孔与所述容腔连通；和
    如权利要求1至11中任一项所述的防水按键结构，所述防水按键结构的按键部分穿过所述按键孔伸入所述容腔内。
  13. 如权利要求12所述的可穿戴设备，其特征在于，所述可穿戴设备还包括设于所述容腔内的第一传感器和第二传感器；
    所述第一传感器位于所述按键的轴向方向上，并用于检测所述按键的轴向移动；
    所述第二传感器设于所述按键的一侧，并用于检测所述按键的转动。
PCT/CN2021/138304 2021-11-18 2021-12-15 防水按键结构和可穿戴设备 WO2023087460A1 (zh)

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