WO2022121632A1 - 一种旋转按键及具有该旋转按键的可穿戴设备 - Google Patents

一种旋转按键及具有该旋转按键的可穿戴设备 Download PDF

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Publication number
WO2022121632A1
WO2022121632A1 PCT/CN2021/130966 CN2021130966W WO2022121632A1 WO 2022121632 A1 WO2022121632 A1 WO 2022121632A1 CN 2021130966 W CN2021130966 W CN 2021130966W WO 2022121632 A1 WO2022121632 A1 WO 2022121632A1
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WO
WIPO (PCT)
Prior art keywords
bar tube
keycap
fixing bracket
key
bar
Prior art date
Application number
PCT/CN2021/130966
Other languages
English (en)
French (fr)
Inventor
黄雷
李林森
Original Assignee
歌尔股份有限公司
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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 WO2022121632A1 publication Critical patent/WO2022121632A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the present invention relates to the technical field of electronic devices, and more particularly, to a rotary button, and also to a wearable device.
  • buttons no longer only carry the functions of the buttons themselves.
  • the realization of functions is also added during the rotation of the buttons, which can realize the replacement of the dial interface relatively single.
  • wearable products and some games that are operated by the rotation of the buttons are developed separately.
  • the common rotary keys include a keycap and a tube matched with the keycap.
  • the tube is fixed at the housing mounting hole of the wearable device.
  • the keycap can rotate relative to the tube and can move linearly relative to the tube to achieve rotation and Press function.
  • a spring is arranged between the keycap and the barrel to provide a restoring force for the keycap to be lifted up and reset after being pressed.
  • the keys are designed to match the main body of the device, and the design is relatively small.
  • the spring and the keycap rub against each other.
  • the experience of the key rotation is poor.
  • the long-term friction with the end of the spring caused by the rotation will bring powder, which in turn affects the reliability of the rotary key.
  • the first object of the present invention is to provide a rotary key, the structural design of the rotary key can effectively solve the problem of poor reliability of the rotary key, and the second object of the present invention is to provide a Wearables with rotary buttons.
  • the present invention provides the following technical solutions:
  • a rotary key comprising a tube for being fixedly connected with a device casing and a keycap slidable relative to the tube, wherein the keycap is rotatable relative to the tube, and further comprises a keycap slidable with the tube
  • the connected fixing bracket, the sliding direction of the fixing bracket relative to the bar tube is the same as the sliding direction of the keycap relative to the bar tube, and the fixing bracket and the bar tube are in the position of the key cap.
  • the keycap cover Remaining relatively static in the rotation direction, the keycap cover is arranged outside the fixing bracket, and an elastic member is arranged between the fixing bracket and the bar tube for pushing the fixing bracket and then pushing the keycap to slide and reset.
  • a limiting member for limiting the lifting limit of the fixed bracket is further included, and when the fixed bracket is at the lifting limit position, there is a sliding direction between the fixed bracket and the keycap in the sliding direction. Clearance or abutment with the keycap.
  • a limit groove is formed on the side wall of the fixing bracket, and the limit member includes a protrusion whose one end is connected to the bar tube and the other end is inserted into the limit groove.
  • the limiting groove extends along the sliding direction of the fixing bracket relative to the bar tube, and the width of the limiting groove is the same as the width of the protrusion.
  • a side wall through hole is formed on the side wall of the bar tube, and the protrusion is a pin shaft inserted into the side wall through hole.
  • the pin shaft is in an interference fit with the side wall through hole.
  • the top of the bar has a bar tube installation groove
  • the fixing bracket is located in the bar tube installation slot
  • the two ends of the elastic member are respectively connected with the end surface of the fixing bracket and the end surface of the bar tube.
  • the groove bottoms of the installation grooves of the bar are abutted against each other
  • the key cap has a key cap installation groove
  • the top end of the bar tube is located in the key cap installation groove.
  • the key cap includes a key cap body and a key lever fixedly connected to the key cap body, the key cap body is covered outside the fixed bracket, and the center of the bar has a A through hole for the button rod to pass through, the center line of the fixing bracket has a button through hole for the button rod to pass through, and the bottom end of the button rod is connected with a button for connecting with the button rod.
  • the bottom faces abut against the flanges to limit the lift limit of the keycap.
  • a waterproof ring is provided between the key rod and the through hole of the bar, and a sealing gasket is provided between the outer wall of the bar and the device housing.
  • the rotary key provided by the present invention includes a bar tube, a key cap, an elastic member and a fixing bracket.
  • the barrel is used for fixed connection with the device shell; the keycap can slide and rotate relative to the barrel; the fixed bracket is slidably connected to the barrel, and the sliding direction of the fixed bracket relative to the barrel is consistent with the sliding direction of the keycap relative to the barrel , and the fixed bracket and the tube remain relatively static in the rotation direction of the keycap, the keycap cover is arranged outside the fixed bracket, and an elastic member is arranged between the fixed bracket and the tube to push the fixed bracket and then push the keycap to slide and reset.
  • the key cap acts on the fixed bracket when pressed, and the fixed bracket acts on the elastic member when pressed, and the elastic member is deformed.
  • the restoring force of the elastic member pushes and fixes the The bracket, the fixed bracket pushes the keycap to lift and reset.
  • the tube and the fixed bracket are relatively static in the rotation direction of the keycap, and the elastic member does not rotate with the keycap, so the end of the elastic member will not rub against the fixed bracket, so fundamentally Eliminate the relative sliding problem of the elastic member relative to the bar tube and the fixed bracket. Therefore, even after long-term use, the end of the elastic member will not bring powder due to friction, thereby improving the reliability of the rotary key.
  • a limit member for limiting the lifting limit of the fixing bracket is further included, and when the fixing bracket is at the lifting limit position under the limit of the limit member, there is a gap between the fixing bracket and the key cap or a gap between the key cap and the key cap. Caps stick together.
  • the restoring force of the elastic member is limited on the fixing bracket when the keycap is raised, and will not be transmitted to the keycap. Therefore, the friction problem between the moving parts caused by the reaction force of the elastic member to the keycap is fundamentally eliminated, the operability and experience of the keycap during the rotation process are improved, and the wear-resistant sheet between the moving parts can be omitted. and other wear-resistant parts, greatly reducing material and assembly costs.
  • the present invention also provides a wearable device, the wearable device includes any of the above rotary keys. Since the above-mentioned rotary key has the above-mentioned technical effect, the wearable device having the above-mentioned rotary key should also have the corresponding technical effect.
  • FIG. 1 is a schematic cross-sectional structure diagram of a rotary key assembly state according to a specific embodiment of the present invention
  • FIG. 2 is a schematic partial cross-sectional structure diagram of a wearable device according to a specific embodiment of the present invention.
  • Fig. 3 is another perspective schematic diagram corresponding to Fig. 2;
  • FIG. 4 is a schematic diagram of an explosion structure corresponding to FIG. 2 .
  • Keycap 1 keycap body 101, key lever 102, fixing bracket 2, bar tube 3, pin 4, elastic piece 5, screw 6, laser crown bracket 7, laser crown FPC 8, key rubber sleeve 9, card Spring 10 , waterproof ring 11 , gasket 12 , upper case 13 .
  • the embodiment of the present invention discloses a rotary key, so as to improve the reliability of the rotary key.
  • FIG. 1 is a schematic cross-sectional structural diagram of a rotary key in an assembled state according to an embodiment of the present invention.
  • the rotary key provided by the present invention includes a bar tube 3 , a key cap 1 , an elastic member 5 and a fixed bracket 2 .
  • the bar pipe 3 is used for fixed connection with the equipment housing.
  • the specific fixing method of the bar tube 3 and the device casing is not specifically limited here.
  • the bar tube 3 is matched with the keycap 1 , and its shape can be set according to the shape of the keycap 1 .
  • the keycap 1 can move linearly relative to the barrel, and the keycap 1 can rotate relative to the barrel 3 . That is, the keycap 1 can be used as a key or a knob.
  • the corresponding function can be realized by rotating or pressing or lifting the keycap 1 .
  • a certain function is triggered when the keycap 1 is rotated, or a certain function is triggered when the keycap 1 is pressed.
  • a certain function is triggered when the keycap 1 is rotated, or a certain function is triggered when the keycap 1 is pressed.
  • a certain function is triggered when the keycap 1 is rotated, or a certain function is triggered when the keycap 1 is pressed.
  • the specific connection structure of the key cap 1 and the bar tube 3
  • the fixed bracket 2 is slidably connected with the bar tube 3, the sliding direction of the fixed bracket 2 relative to the bar tube 3 is consistent with the sliding direction of the keycap 1 relative to the bar tube 3, and the fixed bracket 2 and the bar tube 3 are in the rotation direction of the key cap 1 remain relatively stationary. That is, the fixed bracket 2 can slide linearly with the keycap 1 relative to the barrel 3 , but will not rotate relative to the barrel 3 . When the keycap 1 rotates, the keycap 1 rotates relative to the barrel 3 and the fixing bracket 2 .
  • a conventional sliding connection structure which is not specifically limited here.
  • An elastic member 5 for pushing the fixing bracket 2 and then pushing the keycap 1 to slide and reset is disposed between the fixing bracket 2 and the bar tube 3 .
  • the keycap 1 is arranged outside the fixed bracket 2, and when the keycap 1 is pressed down, it acts on the fixed bracket 2 to press it down. After the external force releases the keycap 1, due to the arrangement of the elastic member 5, the restoring force of the elastic member 5 pushes the fixing bracket 2 to lift, and then the fixing bracket 2 pushes the keycap 1 to automatically lift and reset.
  • the elastic member 5 may be a compression elastic member, such as a compression spring, for pushing the fixing bracket 2 to push the keycap 1 up.
  • the key cap 1 acts on the fixed bracket 2 when pressed, and the fixed bracket 2 acts on the elastic member 5 when pressed, and the elastic member 5 is deformed.
  • the restoring force of the component 5 pushes the fixing bracket 2, and the fixing bracket 2 pushes the keycap 1 to lift up and reset.
  • the keycap 1 rotates relative to the bar tube 3 , since the elastic member 5 is disposed between the fixing bracket 2 and the bar tube 3 , on the one hand, the end of the elastic member 5 does not act on the keycap 1 .
  • the tube 3 and the fixed bracket 2 are relatively stationary in the rotation direction of the keycap 1, and the elastic member 5 will not rotate with the keycap 1, so the end of the elastic member 5 will not be in contact with the fixed bracket 2. Friction is generated, thereby fundamentally eliminating the relative sliding problem of the elastic member 5 with respect to the bar tube 3 and the fixed bracket 2 . Therefore, even after long-term use, the end of the elastic member 5 will not bring powder due to friction, thereby improving the reliability of the rotary key.
  • a limit member for limiting the lifting limit of the fixed bracket 2 is also included, and when the fixed bracket 2 is in the lifting limit position under the limit of the limit member, there is a gap or a gap between the key cap 1 and the keycap 1 in the sliding direction. Stick with keycap 1.
  • the elastic member 5 is disposed between the fixed bracket 2 and the bar tube 3 , that is, the fixed bracket 2 is used as a force-releasing structure for the elastic member 5 .
  • the limiting member is used to limit the lifting limit of the fixing bracket 2 , that is, after the keycap 1 is released by external force, the fixing bracket 2 is lifted and reset under the action of the elastic member 5 , and simultaneously pushes the keycap 1 to reset.
  • the fixed bracket 2 When the fixed bracket 2 is lifted up to the blocking of the position-limiting component and cannot continue to move, the fixed bracket 2 reaches the lifting limit position. It should be noted that, when the fixing bracket 2 is at the lifting limit position, there is a gap between the fixing bracket 2 and the keycap 1 in the sliding direction, which means that there is no contact between the fixing bracket 2 and the keycap 1 in the sliding direction, so that the elastic The force of the piece 5 is not transmitted to the keycap 1 .
  • the fixing bracket 2 When the fixed bracket 2 is in the lifting limit position and the keycap 1 is in contact with the keycap 1 in the sliding direction, it means that the fixed bracket 2 and the keycap 1 are just in contact with each other in the sliding direction but there is no extrusion effect, so that the fixed bracket 2 The force received by the elastic member 5 will not be transmitted to the keycap 1 .
  • the fixing bracket 2 In order to avoid the idle travel of the keycap 1 , the fixing bracket 2 preferably fits in the sliding direction with the keycap 1 when the fixing bracket 2 is at the lifting limit position.
  • the elastic member 5 still has a good restoring force unloading force acting on the keycap 1 directly. within the scope of protection of this application.
  • the fixing bracket 2 is connected with the bar tube 3 and cannot be disengaged.
  • the restoring force of the elastic member 5 is limited to the fixing bracket 2 and is not transmitted to the keycap 1 . Therefore, the friction problem between the moving parts caused by the reaction force of the elastic member 5 to the keycap 1 is fundamentally eliminated, the operability and experience of the keycap 1 during the rotation process are improved, and the friction between the moving parts can be eliminated.
  • Wear-resistant parts such as wear-resistant sheets greatly reduce material and assembly costs. And due to the strict requirements of wear-resistant sheets, high assembly precision requirements, high reliability requirements, high costs and poor product consistency. With the above-mentioned structural arrangement of the present application, there is no need to dispose a wear-resistant sheet, thereby avoiding the above-mentioned problems, saving costs, and improving product consistency.
  • the side wall of the fixing bracket 2 is provided with a limiting groove
  • the limiting component includes a protrusion whose one end is connected to the bar tube 3 and the other end is inserted into the limiting groove.
  • the inside of the slot slides relative to the limit slot, and the fixing bracket 2 is lifted up to the limit when the protrusion touches one end of the limit slot.
  • the fixing bracket 2 slides with the keycap 1 the fixing bracket 2 slides relative to the protrusion.
  • One end of the limiting slot specifically the end corresponding to the pressing direction of the fixing bracket 2 is closed, then with the lifting of the fixing bracket 2, when the end of the limiting slot is in contact with the protrusion, the fixing bracket 2 is lifted up. is restricted, that is, the fixed bracket 2 reaches the lifting limit position.
  • the protrusions form an inverted buckle, so that the fixing bracket 2 cannot be disengaged.
  • the limiting groove extends along the sliding direction of the fixing bracket 2 relative to the bar tube 3 , and the width of the limiting groove is consistent with the width of the protrusion.
  • the protrusion cooperates with the limit groove.
  • the limit groove can limit and guide the sliding direction of the fixed bracket 2;
  • the rotation of the keycap 1 keeps the two stationary in the rotation direction of the keycap 1. That is, by adopting the above structure, the limiting groove and the protrusion not only realize the limitation of the rotation of the fixing bracket 2 relative to the bar tube 3, but also realize the limitation of the lifting limit position of the fixing bracket 2, and the structure is simple and compact.
  • the limiting member for limiting the lifting limit position of the fixing member 2 and the anti-rotation member for limiting the rotation of the fixing bracket relative to the bar tube 3 can also be separately provided, and the structure is relatively complicated.
  • the limiting part and the anti-rotation part may adopt structures such as bosses, respectively.
  • the protrusion can move to the end edge along the limiting groove when the keycap 1 is pressed, which is beneficial to reduce the size of the keycap 1 under the same pressing stroke, so as to meet the requirement of miniaturization of the device.
  • both opposite ends of the limiting groove may be closed as required.
  • the length of the limit groove is specifically set as required, which is not specifically limited here.
  • a plurality of limiting components can be provided, for example, a plurality of protrusions are evenly arranged in the circumferential direction of the bar tube 3, and corresponding limiting grooves are provided corresponding to the protrusions.
  • the reliability of the rotary key is further improved through the cooperative action of a plurality of limiting components.
  • the side wall of the bar tube 3 is provided with a side wall through hole, and the protrusion is a pin shaft 4 inserted into the side wall through hole.
  • the protrusion is a pin shaft 4 inserted into the side wall through hole.
  • the interference fit between the pin shaft 4 and the side wall through hole prevents the pin shaft 4 from coming out of the side wall through hole during use or reliability testing.
  • the pin shaft 4 and the bar tube 3 can also be fixed by other fixed connection methods as required, or when the side wall of the key cap 1 covers the outer wall of the bar tube 3 and blocks the through hole of the side wall, it can be realized by the key cap 1 Limit the pin 4 to prevent it from coming out.
  • the protrusion can also be a structure integrally formed with the bar tube 3 , and a corresponding avoidance structure needs to be provided for the assembly with the fixing bracket 2 to meet the assembly requirements.
  • the limiting member adopts a protrusion that cooperates with the limiting groove.
  • the limiting member may also include a pipe flange arranged at the top of the pipe 3 and a pipe flange arranged at the bottom of the fixed bracket 2 as required.
  • the top of the pipe 3 is one end in the lifting direction
  • the bottom end of the fixing bracket 2 is one end in the pressing direction.
  • the fixed bracket 2 is lifted up to the limit when the flange of the bracket and the flange of the pipe are in contact with each other. The lift limit position is reached.
  • the top of the bar tube 3 has a bar tube installation groove
  • the fixed bracket 2 is located in the bar tube installation groove
  • the two ends of the elastic member 5 are respectively connected with the end face of the fixed bracket 2 and the bar tube installation groove.
  • the bottoms are against each other
  • the keycap 1 has a keycap installation groove
  • the top end of the bar tube 3 is located in the keycap installation groove. That is to say, the side wall of the keycap 1 is located at the outermost end, and the inside is followed by a bar tube 3 and a fixed bracket 2, and each part is set up and connected to each other reliably and is easy to assemble. And the keycap 1 is located on the outer side to facilitate the user to perform corresponding pressing and rotating operations.
  • the fixing bracket 2 may be provided with a bracket installation groove, then one end of the elastic member 5 is in contact with the groove bottom of the bracket installation groove, and the other end is in contact with the groove bottom of the pipe installation groove.
  • the keycap 1 can also be covered outside the fixing bracket 2 and located in the mounting groove of the bar tube.
  • the side wall of the keycap 1 needs to be provided with an avoidance for the limiting member to avoid. through hole.
  • the keycap 1 includes a keycap body 101 and a keybar 102 fixedly connected to the keycap body 101.
  • the keycap body 101 is covered outside the fixing bracket 2, and the center of the tube 3 has a keycap for the keybar.
  • 102 passes through the through hole of the bar tube, the center line of the fixing bracket 2 has a key through hole for the key rod 102 to pass through, and the bottom end of the key bar 102 is connected with the bottom surface of the bar tube 3 to limit the lifting of the key cap 1.
  • Extreme flange is a keycap body 101 and a keybar 102 fixedly connected to the keycap body 101.
  • the keycap body 101 is covered outside the fixing bracket 2, and the center of the tube 3 has a keycap for the keybar.
  • 102 passes through the through hole of the bar tube, the center line of the fixing bracket 2 has a key through hole for the key rod 102 to pass through, and the bottom end of the key bar 102 is connected with the bottom surface of the bar tube 3 to limit the lifting of the
  • the keycap 1 is rotatably connected with the bar tube 3 through the key lever 102, and a flange is arranged at the bottom end of the key bar 102, so that the key cap 1 is limited to the connection state with the bar tube 3 and cannot be disengaged.
  • the setting does not affect keycap 1 pressing.
  • the flange is a circlip 10, such as an E-shaped circlip.
  • a groove is provided at the bottom end of the key lever 102, and the retaining spring 10 is installed in the groove. The setting of the retaining spring 10 limits the upper limit position of the keycap 1 to prevent the keycap 1 from coming out.
  • a waterproof ring 11 is provided between the key rod 102 and the through hole of the pipe, and a sealing gasket 12 is provided between the outer wall of the pipe 3 and the device casing.
  • the sealing gasket 12 may specifically be a silicone gasket.
  • the waterproof ring 11 may be an O-ring.
  • the present invention also provides a wearable device, the wearable device includes any of the rotary keys in the above embodiments. Since the wearable device adopts the rotary button in the above-mentioned embodiment, please refer to the above-mentioned embodiment for the beneficial effects of the wearable device.
  • the wearable device includes an upper case 13 , screws 6 , a laser crown bracket 7 , a laser crown FPC 8 and a button rubber cover 9 .
  • the wearable device when assembling, first install the elastic member 5 along the side of the bar tube installation groove of the bar tube 3, and then install the fixing bracket 2.
  • the pin shaft 4 When installing, pay attention to the alignment of the limit grooves of the fixing bracket 2.
  • the pin shaft 4 Through the side wall of the quasi-bar tube 3, then the pin shaft 4 is inserted from the side, and directly inserted into the limit groove of the fixing bracket 2 to form an inverted buckle so that the fixing bracket 2 cannot be disengaged.
  • the through hole of the pin shaft 4 and the side wall is: Interference fixation to prevent problems of release during use or reliability testing. Pressing from the side of the fixed bracket 2, the fixed bracket 2 can move in the direction of the limit groove, and the pressing force is released, and can be pushed back to the original position by the elastic member 5.
  • the assembly process of the upper shell assembly is as follows: Assemble the gasket 12 to the bar tube 3, then screw the bar tube 3 into the upper shell 13 through the anti-drop glue on the thread thread, and fix the inner groove position by welding, so as to connect the bar tube 3 It is fixedly connected with the upper shell 13 . Then put two O-rings into the groove of the key lever 102, and then put the key lever 102 from the side of the bracket installation groove of the fixing bracket 2, and the inner side is clamped by the E-type circlip, and then the E-type circlip After being welded together with the key lever 102, the entire assembly of the upper shell 13 is completed.
  • the assembly process of the laser crown bracket 7 is as follows: First, the laser crown FPC 8 is fixed to the laser crown bracket 7 through the adhesive/positioning post and the buckle, and then the key rubber sleeve 9 is fixed to the laser through the convex hull groove structure. On the crown bracket 7 , the entire laser crown bracket 7 is then fixed to the upper case assembly by screws 6 .
  • the wearable device in this application may specifically be a wrist-worn device such as a watch or a bracelet, or may be other wearable devices such as a head-mounted display.

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Abstract

本申请一些实施例公开了一种旋转按键，包括用于与设备壳体固定连接的巴管和可相对巴管滑动的键帽，且键帽可相对巴管旋转，还包括与巴管滑动连接的固定支架，固定支架相对于巴管的滑动方向与键帽相对于巴管的滑动方向一致，且固定支架与巴管在键帽的旋转方向上保持相对静止，键帽罩设于固定支架外，固定支架与巴管之间设置有用于推动固定支架进而推动键帽滑动复位的弹性件。应用本申请提供的旋转按键时，从根本上消除了弹性件相对于巴管和固定支架的相对滑动问题。因而即使长时间使用后，弹性件的端部也不会因摩擦而带来粉末，进而提升了旋转按键的可靠性。本申请还公开了一种具有上述旋转按键的可穿戴设备，同样具有上述技术效果。

Description

一种旋转按键及具有该旋转按键的可穿戴设备
本申请要求于2020年12月10日提交中国专利局、申请号为202011438643.6、发明名称为“一种旋转按键及具有该旋转按键的可穿戴设备”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
本发明涉及电子设备技术领域，更具体地说，涉及一种旋转按键，还涉及一种可穿戴设备。
背景技术
随着腕带类产品功能的增加，侧按键已经不仅仅承载按键本身的功能，新一代的产品中，在按键的旋转过程中也加入了功能的实现，相对单一的可以实现表盘界面的更换，更有一些穿戴类产品，单独开发一些通过按键的旋转来操作的游戏。
目前常见的旋转按键包括键帽和与键帽配合的巴管，巴管固定在可穿戴设备的壳体安装孔处，键帽可相对巴管转动且可以相对巴管直线移动，从而实现旋转及按下功能。键帽与巴管之间设置有弹簧，以提供键帽按下后向上抬起复位的回复力。
然而，按键为匹配设备主体，设计相对小巧，加上弹簧的回弹力，弹簧与键帽相互摩擦，一方面按键旋转的体验较差。另一方面，转动引起与弹簧端部的长时间摩擦会带来粉末，进而影响旋转按键的可靠性。
综上所述，如何有效地解决旋转按键可靠性较差等问题，是目前本领域技术人员需要解决的问题。
发明内容
有鉴于此，本发明的第一个目的在于提供一种旋转按键，该旋转按键的结构设计可以有效地解决旋转按键可靠性较差的问题，本发明的第二个目的 是提供一种包括上述旋转按键的可穿戴设备。
为了达到上述第一个目的，本发明提供如下技术方案：
一种旋转按键，包括用于与设备壳体固定连接的巴管和可相对所述巴管滑动的键帽，且所述键帽可相对所述巴管旋转，还包括与所述巴管滑动连接的固定支架，所述固定支架相对于所述巴管的滑动方向与所述键帽相对于所述巴管的滑动方向一致，且所述固定支架与所述巴管在所述键帽的旋转方向上保持相对静止，所述键帽罩设于所述固定支架外，所述固定支架与所述巴管之间设置有用于推动所述固定支架进而推动所述键帽滑动复位的弹性件。
优选地，上述旋转按键中，还包括用于限制所述固定支架抬起极限的限位部件，且所述固定支架处于所述抬起极限位置时与所述键帽之间在滑动方向上具有间隙或与所述键帽相贴。
优选地，上述旋转按键中，所述固定支架的侧壁上开设有限位槽，所述限位部件包括一端与所述巴管连接、另一端插入所述限位槽的凸起，所述固定支架相对所述巴管滑动时所述凸起在所述限位槽内相对滑动，所述固定支架抬起至所述凸起与所述限位槽的一端相抵时被限位。
优选地，上述旋转按键中，所述限位槽沿所述固定支架相对于所述巴管的滑动方向延伸，且所述限位槽的宽度与所述凸起的宽度一致。
优选地，上述旋转按键中，所述巴管的侧壁上开设有侧壁通孔，所述凸起为插入所述侧壁通孔内的销轴。
优选地，上述旋转按键中，所述销轴与所述侧壁通孔过盈配合。
优选地，上述旋转按键中，所述巴管的顶端具有巴管安装槽，所述固定支架位于所述巴管安装槽内，所述弹性件的两端分别与所述固定支架的端面和所述巴管安装槽的槽底相抵，所述键帽具有键帽安装槽，所述巴管的顶端位于所述键帽安装槽内。
优选地，上述旋转按键中，所述键帽包括键帽本体和与所述键帽本体固定连接的按键杆，所述键帽本体罩设于所述固定支架外，所述巴管的中心具有用于所述按键杆穿过的巴管通孔，所述固定支架的中线具有用于所述按键杆穿过的按键通孔，所述按键杆的底端连接有用于与所述巴管的底面相抵以限制所述键帽抬起极限的凸缘。
优选地，上述旋转按键中，所述按键杆与所述巴管通孔之间设有防水圈，所述巴管的外壁与所述设备壳体之间设有密封垫。
本发明提供的旋转按键包括巴管、键帽、弹性件和固定支架。其中，巴管用于与设备壳体固定连接；键帽可相对巴管滑动及旋转；固定支架与巴管滑动连接，固定支架相对于巴管的滑动方向与键帽相对于巴管的滑动方向一致，且固定支架与巴管在键帽的旋转方向上保持相对静止，键帽罩设于固定支架外，固定支架与巴管之间设置有用于推动固定支架进而推动键帽滑动复位的弹性件。
应用本发明提供的旋转按键时，键帽按下时作用于固定支架，固定支架按下的同时作用于弹性件，弹性件发生形变，则在外力释放键帽后，弹性件的回复力推动固定支架，固定支架又推动键帽抬起复位。在键帽相对巴管旋转时，由于弹性件设置于固定支架与巴管之间，则一方面弹性件的端部并不会作用于键帽。另一方面，巴管与固定支架在键帽的旋转方向上是相对静止的，弹性件并不会随键帽旋转，则弹性件的端部并不会与固定支架产生摩擦，从而从根本上消除弹性件相对于巴管和固定支架的相对滑动问题。因而即使长时间使用后，弹性件的端部也不会因摩擦而带来粉末，进而提升了旋转按键的可靠性。
在一个优选的实施方式中，还包括用于限制固定支架抬起极限的限位部件，且固定支架在限位部件的限位下处于抬起极限位置时与键帽之间具有间隙或与键帽相贴。通过限位部件的设置，在键帽抬起状态下弹性件的回复力被限制在固定支架上，而不会传递至键帽。从而从根本上消除弹性件对键帽的反作用力所造成的运动部件间的摩擦问题，提高了键帽在旋转过程中的可操作性和体验性，且能够省去运动部件间的耐磨片等耐磨部件，大大降低了物料和组装成本。
为了达到上述第二个目的，本发明还提供了一种可穿戴设备，该可穿戴设备包括上述任一种旋转按键。由于上述的旋转按键具有上述技术效果，具有该旋转按键的可穿戴设备也应具有相应的技术效果。
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为本发明一个具体实施例的旋转按键装配状态的截面结构示意图；
图2为本发明一个具体实施例的可穿戴设备的局部截面结构示意图；
图3为图2对应的另一视角示意图；
图4为图2对应的爆炸结构示意图。
附图中标记如下：
键帽1，键帽本体101，按键杆102，固定支架2，巴管3，销轴4，弹性件5，螺钉6，激光表冠支架7，激光表冠FPC 8，按键胶套9，卡簧10，防水圈11，密封垫12，上壳13。
具体实施方式
本发明实施例公开了一种旋转按键，以提升旋转按键的可靠性。
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，图1为本发明一个具体实施例的旋转按键装配状态的截面结构示意图。
在一个具体实施例中，本发明提供的旋转按键包括巴管3、键帽1、弹性件5和固定支架2。
其中，巴管3用于与设备壳体固定连接。巴管3与设备壳体的具体固定方式，此处不做具体限定。巴管3与键帽1配合，其形状可根据键帽1的形状相应设置。
键帽1可相对巴管直线移动，且键帽1可相对巴管3旋转。也就是键帽1既可以用作按键使用，也可以用作旋钮使用。该旋转按键应用于可穿戴设备等装置时，可通过键帽1的旋转或按下或抬起来实现对应的功能。如键帽1旋转时触发一定功能，或者键帽1按下时触发一定功能等。具体如何感应键帽1的旋转并根据旋转触发相应功能及如何感应键帽1的下压及根据下压触发相应 功能可参见常见旋转按键的相应结构设置，此处不作具体。键帽1与巴管3的具体连接结构也可参考现有技术，此处不做具体限定。
固定支架2与巴管3滑动连接，固定支架2相对于巴管3的滑动方向与键帽1相对于巴管3的滑动方向一致，且固定支架2与巴管3在键帽1的旋转方向上保持相对静止。也就是固定支架2能够随键帽1相对巴管3直线滑动，但不会相对巴管3转动。键帽1旋转时，键帽1相对巴管3和固定支架2转动。具体固定支架2与巴管3的连接结构可参考常规滑动连接结构，此处不做具体限定。
固定支架2与巴管3之间设置有用于推动固定支架2进而推动键帽1滑动复位的弹性件5。键帽1设置于固定支架2外，则键帽1按下时作用于固定支架2将其按下。而在外力释放键帽1后，由于弹性件5的设置，弹性件5的回复力推动固定支架2抬起，进而固定支架2推动键帽1能够自动抬起复位。具体的，弹性件5可为用于推动固定支架2进而推动键帽1抬起的压缩弹性件，如压缩弹簧。
应用本发明提供的旋转按键时，键帽1按下时作用于固定支架2，固定支架2按下的同时作用于弹性件5，弹性件5发生形变，则在外力释放键帽1后，弹性件5的回复力推动固定支架2，固定支架2又推动键帽1抬起复位。在键帽1相对巴管3旋转时，由于弹性件5设置于固定支架2与巴管3之间，则一方面弹性件5的端部并不会作用于键帽1。另一方面，巴管3与固定支架2在键帽1的旋转方向上是相对静止的，弹性件5并不会随键帽1旋转，则弹性件5的端部并不会与固定支架2产生摩擦，从而从根本上消除弹性件5相对于巴管3和固定支架2的相对滑动问题。因而即使长时间使用后，弹性件5的端部也不会因摩擦而带来粉末，进而提升了旋转按键的可靠性。
进一步地，还包括用于限制固定支架2抬起极限的限位部件，且固定支架2在限位部件的限位下处于抬起极限位置时与键帽1之间在滑动方向上具有间隙或与键帽1相贴。弹性件5设置于固定支架2与巴管3之间，即固定支架2用作弹性件5的卸力结构。限位部件用于限制固定支架2的抬起极限，也就是在外力释放键帽1后，固定支架2在弹性件5的作用下抬起复位，同时推动键帽1复位。在固定支架2抬起至受限位部件的阻挡而不能继续运动时，则固定支架2达到抬起极限位置。需要说明的是，固定支架2处于抬起极限位置时与键帽1之间在滑动方向上具有间隙指固定支架2与键帽1之间在滑动方向上不接触， 从而固定支架2受到的弹性件5的作用力不会传递至键帽1。固定支架2处于抬起极限位置时与键帽1之间在滑动方向上相贴则指固定支架2与键帽1之间在滑动方向上恰好相贴合但无挤压作用，从而固定支架2受到的弹性件5的作用力也不会传递至键帽1。为了避免键帽1的空行程，固定支架2处于抬起极限位置时与键帽1之间在滑动方向上优选相贴合。当然，装配过程中，可能存在固定支架2与键帽1接触且存在一定挤压力的情况，但相对于弹性件5直接作用于键帽1仍具有良好回复力卸力作用，其也应在本申请的保护范围内。
通过限位部件的设置，一方面使得固定支架2与巴管3连接而不能脱出。另一方面，在键帽1抬起状态下弹性件5的回复力被限制在固定支架2上，而不会传递至键帽1。从而从根本上消除弹性件5对键帽1的反作用力所造成的运动部件间的摩擦问题，提高了键帽1在旋转过程中的可操作性和体验性，且能够省去运动部件间的耐磨片等耐磨部件，大大降低了物料和组装成本。且由于耐磨片要求严格，组装精度要求高，可靠性要求高，成本较高且造成产品一致性差。通过本申请上述结构设置，无需再设置耐磨片，从而避免了上述问题，节约了成本，提高了产品一致性。
具体的，固定支架2的侧壁上开设有限位槽，限位部件包括一端与巴管3连接、另一端插入限位槽的凸起，固定支架2相对巴管3滑动时凸起在限位槽内相对限位槽滑动，固定支架2抬起至凸起与限位槽的一端相抵时被限位。则固定支架2随键帽1滑动时，固定支架2相对凸起滑动。限位槽的一端，具体为对应固定支架2按下方向的一端呈封闭状，则随固定支架2的抬起，当限位槽的该端与凸起相抵时，则固定支架2的抬起被限制，即固定支架2达到抬起极限位置。且凸起形成倒扣使得固定支架2无法脱出。
进一步地，限位槽沿固定支架2相对于巴管3的滑动方向延伸，且限位槽的宽度与凸起的宽度一致。凸起与限位槽配合，一方面限位槽可起到对固定支架2滑动方向的限位及导向作用，另一方面，限位槽与凸起的配合限制了固定支架2相对巴管3的转动，使二者保持在键帽1旋转方向上的静止。即采用上述结构，通过限位槽与凸起既实现了对固定支架2相对巴管3转动的限制，又实现了对固定支架2的抬起极限位置的限制，结构简单紧凑。根据需要，也可以分别单独设置限制固定部件2抬起极限位置的限位部件，及限制固定支架相 对巴管3转动的防转部件，结构相对复杂。限位部件及防转部件具体可以分别采用凸台等结构。
限位槽的朝向巴管3的一端，也就是对应固定支架2按下方向的一端呈封闭状，其另一端即背离巴管3的一端具体可呈开口状。也就是对应固定支架2抬起方向的一端，呈开口状，则便于固定支架2与巴管3的装配。且凸起能够在键帽1按下时沿限位槽移动至该端边缘，在相同按压行程下有利于缩减键帽1的尺寸，以满足设备小型化的需求。当然，根据需要限位槽相对的两端均可以呈封闭状。限位槽的长度具体根据需要设置，此处不做具体限定。
为了更好地起到限位作用，可以设置多个限位部件，如在巴管3的周向上均匀设置多个凸起，与各凸起配合的分别对应设置限位槽。通过多个限位部件配合共同作用，进一步提高旋转按键的可靠性。
为了便于各部件的拆装，巴管3的侧壁上开设有侧壁通孔，凸起为插入侧壁通孔内的销轴4。则装配时，将固定支架2装入巴管3，并将限位槽对准侧壁通孔，而后将销轴4插入侧壁通孔，且端部插入至限位槽中。也就是销轴4穿设于侧壁通孔且端部位于限位槽内。则侧壁通孔对销轴4起到限位作用，防止其随固定支架2直线移动。具体的，销轴4与侧壁通孔过盈配合，则防止使用或可靠性测试中销轴4由侧壁通孔内脱出。根据需要也可以通过其他固定连接方式将销轴4与巴管3固定，或者在键帽1的侧壁覆盖于巴管3外壁且遮挡侧壁通孔的情况下，则可以通过键帽1实现对销轴4的限位以防止其脱出。根据需要，凸起也可以为与巴管3一体成型的结构，则与固定支架2的装配需相应的设置避位结构，以满足装配需求。
以上说明了限位部件采用与限位槽配合的凸起，具体如销轴4的情况，根据需要限位部件也可以包括设置于巴管3顶端的巴管凸缘和设置于固定支架2底端的支架凸缘，巴管3的顶端即抬起方向的一端，固定支架2的底端即按下方向的一端，固定支架2抬起至支架凸缘与巴管凸缘相抵时被限位，则达到抬起极限位置。
在上述各实施例的基础上，巴管3的顶端具有巴管安装槽，固定支架2位于巴管安装槽内，弹性件5的两端分别与固定支架2的端面和巴管安装槽的槽底相抵，键帽1具有键帽安装槽，巴管3的顶端位于键帽安装槽内。也就是键帽1的侧壁位于最外端，其内依次为巴管3和固定支架2，各部件相互套设连接 可靠，便于装配。且键帽1位于外侧便于用户进行相应的按压及旋转操作。固定支架2具体可以设置支架安装槽，则弹性件5的一端与支架安装槽的槽底相抵，另一端与巴管安装槽的槽底相抵。通过上述设置，即节约了空间，也便于弹性件5的安装。根据需要，键帽1也可以罩设于固定支架2外，且位于巴管安装槽内，则在设置有限位部件的情况下，键帽1的侧壁上需要设置于限位部件避让的避让通孔。
在上述各实施例中，键帽1包括键帽本体101和与键帽本体101固定连接的按键杆102，键帽本体101罩设于固定支架2外，巴管3的中心具有用于按键杆102穿过的巴管通孔，固定支架2的中线具有用于按键杆102穿过的按键通孔，按键杆102的底端连接有用于与巴管3的底面相抵以限制键帽1抬起极限的凸缘。也就是键帽1通过按键杆102与巴管3转动连接，并在按键杆102的底端设置凸缘，则将键帽1限位于与巴管3的连接状态而不能脱出，当然凸缘的设置并不影响键帽1的按下。具体的，凸缘为卡簧10，如E形卡簧。在按键杆102的底端设置槽，并将卡簧10安装于槽内。通过卡簧10的设置，限制了键帽1的上移极限位置，防止键帽1脱出。
进一步地，按键杆102与巴管通孔之间设有防水圈11，巴管3的外壁与设备壳体之间设有密封垫12。通过在按键杆102与巴管3之间设置防水圈11及巴管3与设备壳体之间设置密封垫12，实现了旋转按键处设备壳体内外的有效密封。密封垫12具体可以为硅胶垫。防水圈11具体可以为O型圈。
基于上述实施例中提供的旋转按键，本发明还提供了一种可穿戴设备，该可穿戴设备包括上述实施例中任意一种旋转按键。由于该可穿戴设备采用了上述实施例中的旋转按键，所以该可穿戴设备的有益效果请参考上述实施例。
具体的，请参阅图2-图4，可穿戴设备包括上壳13、螺钉6、激光表冠支架7、激光表冠FPC 8和按键胶套9。以一个优选实施方式为例，组装时，首先将弹性件5沿着巴管3的巴管安装槽一侧装入，将固定支架2装入，装入时注意固定支架2的限位槽对准巴管3的侧壁通孔，然后将销轴4从侧面销入，并直接插入固定支架2的限位槽，形成倒扣使得固定支架2无法脱出，销轴4与侧壁通孔为干涉固定，防止使用或可靠性测试中脱出的问题。从固定支架2一侧按压，固定支架2可以在限位槽方向移动，按压力释放，可以被弹性件5推回原位。
上壳组件的组装过程如下：将密封垫12组装到巴管3上，然后将巴管3通过螺纹螺纹上点耐落胶旋入上壳13，内侧凹槽位置焊接固定，从而将巴管3与上壳13固定连接。随后先在按键杆102的凹槽中装入两个O型圈，然后按键杆102从固定支架2的支架安装槽一侧装入，内侧通过E型卡簧卡住，随后将E型卡簧和按键杆102电焊到一起，整个上壳13组件组装完成。
激光表冠支架7的组装过程如下：首先将激光表冠FPC 8通过背胶/定位柱和卡扣固定到激光表冠支架7上，随后将按键胶套9通过凸包凹槽结构固定到激光表冠支架7上，随后将整个激光表冠支架7通过螺钉6固定到上壳组件。
旋转键帽1时，由于固定支架2将弹性件5固定到巴管3上，整个弹性件5对于键帽1不再产生回弹力，没有回弹力也就没有回弹力所带来的摩擦力，整个键帽1旋转时所受到的阻力仅是O型圈摩擦阻力，非常轻微，手感大大提高，这样就省去了巴管3与E型卡簧之间的耐磨垫片；由弹性件5不再存在旋转的问题，弹性件5与巴管3之间为消除金属之间摩擦噪声设计的耐磨垫片也可以取消，物料的取消也消除了摩擦所带来的粉末问题。
本申请中的可穿戴设备具体可以为手表或手环等腕戴设备，也可以为头显等其他可穿戴的设备。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种旋转按键，包括用于与设备壳体固定连接的巴管(3)和可相对所述巴管(3)滑动的键帽(1)，且所述键帽(1)可相对所述巴管(3)旋转，其特征在于，还包括与所述巴管(3)滑动连接的固定支架(2)，所述固定支架(2)相对于所述巴管(3)的滑动方向与所述键帽(1)相对于所述巴管(3)的滑动方向一致，且所述固定支架(2)与所述巴管(3)在所述键帽(1)的旋转方向上保持相对静止，所述键帽(1)罩设于所述固定支架(2)外，所述固定支架(2)与所述巴管(3)之间设置有用于推动所述固定支架(2)进而推动所述键帽(1)滑动复位的弹性件(5)。
  2. 根据权利要求1所述的旋转按键，其特征在于，还包括用于限制所述固定支架(2)抬起极限的限位部件，且所述固定支架(2)处于所述抬起极限位置时与所述键帽(1)之间在滑动方向上具有间隙或与所述键帽(1)相贴。
  3. 根据权利要求2所述的旋转按键，其特征在于，所述固定支架(2)的侧壁上开设有限位槽，所述限位部件包括一端与所述巴管(3)连接、另一端插入所述限位槽的凸起，所述固定支架(2)相对所述巴管(3)滑动时所述凸起在所述限位槽内相对滑动，所述固定支架(2)抬起至所述凸起与所述限位槽的一端相抵时被限位。
  4. 根据权利要求3所述的旋转按键，其特征在于，所述限位槽沿所述固定支架(2)相对于所述巴管(3)的滑动方向延伸，且所述限位槽的宽度与所述凸起的宽度一致。
  5. 根据权利要求3所述的旋转按键，其特征在于，所述巴管(3)的侧壁上开设有侧壁通孔，所述凸起为插入所述侧壁通孔内的销轴(4)。
  6. 根据权利要求5所述的旋转按键，其特征在于，所述销轴(4)与所述侧壁通孔过盈配合。
  7. 根据权利要求1-6任一项所述的旋转按键，其特征在于，所述巴管(3)的顶端具有巴管安装槽，所述固定支架(2)位于所述巴管安装槽内，所述弹性件(5)的两端分别与所述固定支架(2)的端面和所述巴管安装槽的槽底相抵，所述键帽(1)具有键帽安装槽，所述巴管(3)的顶端位于所述键帽 安装槽内。
  8. 根据权利要求1-6任一项所述的旋转按键，其特征在于，所述键帽(1)包括键帽本体(101)和与所述键帽本体(101)固定连接的按键杆(102)，所述键帽本体(101)罩设于所述固定支架(2)外，所述巴管(3)的中心具有用于所述按键杆(102)穿过的巴管通孔，所述固定支架(2)的中线具有用于所述按键杆(102)穿过的按键通孔，所述按键杆(102)的底端连接有用于与所述巴管(3)的底面相抵以限制所述键帽(1)抬起极限的凸缘。
  9. 根据权利要求8所述的旋转按键，其特征在于，所述按键杆(102)与所述巴管通孔之间设有防水圈(11)，所述巴管(3)的外壁与所述设备壳体之间设有密封垫(12)。
  10. 一种可穿戴设备，其特征在于，包括如权利要求1-9任一项所述的旋转按键。
PCT/CN2021/130966 2020-12-10 2021-11-16 一种旋转按键及具有该旋转按键的可穿戴设备 WO2022121632A1 (zh)

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