WO2024094033A1 - Ecg按键组件及电子设备 - Google Patents

Ecg按键组件及电子设备 Download PDF

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Publication number
WO2024094033A1
WO2024094033A1 PCT/CN2023/128896 CN2023128896W WO2024094033A1 WO 2024094033 A1 WO2024094033 A1 WO 2024094033A1 CN 2023128896 W CN2023128896 W CN 2023128896W WO 2024094033 A1 WO2024094033 A1 WO 2024094033A1
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WO
WIPO (PCT)
Prior art keywords
button
ecg
metal
tube
plastic
Prior art date
Application number
PCT/CN2023/128896
Other languages
English (en)
French (fr)
Inventor
张珂珉
赵梦龙
何谦
杨文建
刘壮
林楠
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024094033A1 publication Critical patent/WO2024094033A1/zh

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Classifications

    • 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
    • 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
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to an ECG button assembly and an electronic equipment.
  • ECG electrocardiogram
  • ECG can reflect the user's health status.
  • ECG can reflect heart diseases (such as arrhythmia) and so on. Therefore, more and more electronic devices are adding ECG functions to electronic devices during design and production.
  • the shape of the ECG button of an electronic device with ECG function is usually square. Under the shape of this square button, the ECG path is button cap-spring bracket-screw-conductive sheet, and the conductive sheet is screwed to the button bracket. Since the above-mentioned ECG button occupies more space, when the size of the electronic device is small, the ECG button space is limited.
  • the present application provides an ECG button assembly and an electronic device, which can reduce the volume of the ECG button assembly while achieving ECG circuit conduction.
  • the present application may provide an ECG key assembly, which is applied to an electronic device, and the electronic device may include a housing and a circuit board located in the housing.
  • the ECG key assembly includes a key portion, a plastic bar tube, a metal bar tube, an elastic member, and a conductive sheet.
  • the housing is provided with a through hole, and the plastic bar tube can be embedded in the through hole.
  • the bar tube is provided with a first through hole inside, and the metal bar tube can be embedded in the first through hole, and a part of the metal bar tube is located outside the housing.
  • the conductive sheet is connected to one end of the metal bar tube located inside the housing, and the conductive sheet is in contact with the circuit board and electrically connected.
  • the key portion may include a key cap and a key rod, the metal bar tube is provided with a second through hole inside, the key rod can be inserted into the second through hole, the first end of the key rod is located outside the housing, and the key cap is connected to the first end of the key rod.
  • the elastic member is sleeved on the key rod, one end of the elastic member is connected to the key cap, and the other end is connected to the metal bar tube, and the key portion can move relative to the housing along the axis direction of the key rod.
  • the ECG key assembly provided in the present application is provided with a key part, an elastic member, a metal tube and a conductive sheet. Since the above-mentioned structural members all have conductive properties, the ECG conduction circuit can be a key cap-elastic member-metal tube-conductive sheet-circuit board, so as to realize the conduction of the ECG circuit. In addition, the ECG key assembly in the present application omits the existing screws and does not rely on the key rod for conduction, so that the conductive structure and the internal structure of the shell can be designed to be adaptive, thereby reducing the volume of the ECG key assembly.
  • a bar tube nut may be provided, which is located at the end of the metal bar tube away from the button cap.
  • the bar tube nut is provided with a threaded hole, and the metal bar tube can be threadedly assembled with the bar tube nut, and the conductive sheet is connected to the side of the bar tube nut away from the metal bar tube.
  • the second end of the key rod can be located on the side of the conductive sheet away from the metal tube after passing through the conductive sheet, and a limiting portion is provided at the second end of the key rod, and the limiting portion is arranged around the key rod.
  • the limiting portion abuts against the surface of the side of the conductive sheet away from the metal tube, and when the key portion is pressed, the limiting portion is out of contact with the conductive sheet.
  • the housing includes a metal layer and a plastic layer.
  • the plastic layer is located on a side of the metal layer facing the interior of the housing, thereby increasing the aesthetics of the electronic device.
  • a portion of the plastic tube may be located inside the key cap, and along the axis of the key rod, the distance between the key cap and the plastic tube is smaller than the distance between the key cap and the metal layer. In this way, when the key cap is pressed, the key cap is prevented from contacting the metal layer, thereby avoiding affecting the conduction circuit of the ECG.
  • the distance between the key cap and the metal layer is 0.15 mm to 0.2 mm, which can prevent the key cap from contacting the metal layer and prevent the key cap from protruding too much from the housing, which may cause the electronic device to be unsightly.
  • the metal layer is provided with an opening
  • the surface of the plastic bar tube facing the key cap is flush with the surface of the plastic layer facing the metal layer
  • the plastic bar tube is exposed at the opening
  • the portion of the metal bar tube located outside the housing abuts against the surface of the plastic layer facing the metal layer.
  • a portion of the metal tube is located inside the key cap, and the outer diameter of the plastic tube is greater than or equal to the diameter of the key cap. Since the outer diameter of the plastic tube is greater than or equal to the diameter of the key cap, when the key cap is pressed, even when its surface contacts the surface of the housing, it also contacts the plastic layer, thereby better preventing the key cap from contacting the metal layer.
  • a gasket may be provided at the portion where the metal pipe and the plastic layer abut against each other. The provision of the gasket not only fixes the metal pipe and the plastic layer, but also improves the sealing performance of the connection portion between the two.
  • the plastic pipe and the plastic layer may be an integrated structure, which can save process costs.
  • a flanged edge is provided on the side of the conductive sheet facing away from the button portion, and the conductive sheet contacts the circuit board via the flanged edge, thereby ensuring that the conductive sheet contacts and is electrically connected to the circuit board stably.
  • the circuit board is provided with a spring sheet, and the circuit board contacts the conductive sheet via the spring sheet, thereby ensuring that the conductive sheet and the circuit board are in stable contact and electrically connected.
  • a first sealing ring is provided between the key rod and the metal bar tube to improve the waterproof performance between the key rod and the metal bar tube.
  • a second sealing ring is provided between the metal bar pipe and the plastic bar pipe to improve the waterproof performance between the metal bar pipe and the plastic bar pipe.
  • the present application provides an electronic device, comprising a housing and an ECG button assembly as described in any possible implementation scheme of the first aspect, and the ECG button assembly can be arranged in the housing.
  • the electronic device in the present application can not only realize the ECG function, but also facilitate the control of the volume of the shell, thereby making the electronic device more beautiful as a whole.
  • FIG1 is a schematic diagram of a structure of a wearable device in an embodiment of the present application.
  • FIG2 is a schematic diagram of a partial structure of a wearable device in an embodiment of the present application.
  • FIG3 is a schematic cross-sectional view of the ECG key assembly in FIG2 ;
  • FIG4 is a schematic diagram of the structure of the connection between the conductive sheet and the circuit board of the wearable device in FIG2 ;
  • FIG5 is an enlarged structural diagram of the ECG button assembly in FIG2;
  • FIG6 is a partial structural diagram of another wearable device according to an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of the conductive sheet of the wearable device in FIG6 being connected to the circuit board;
  • FIG8 is a schematic diagram of the cross-sectional structure of the ECG button assembly in FIG6 .
  • references to "one embodiment” or “some embodiments” etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. appearing in different places in this specification do not necessarily all refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • ECG buttons have become a necessary design for electronic devices.
  • the conduction path of ECG buttons is usually square.
  • its ECG path is button cap-spring bracket-screw-conductive sheet, wherein the conductive sheet can be locked to the square button bracket by screws.
  • two screws are usually provided, which results in a larger size of the ECG button.
  • the above ECG button does not have enough space, which affects the function of the ECG button.
  • the embodiment of the present application provides an ECG key component and an electronic device, which can reduce the volume of the ECG key component while ensuring the conduction of the ECG key component.
  • the structure of the ECG key component and the electronic device will be described in detail below in conjunction with specific embodiments.
  • the ECG key assembly in the embodiment of the present application can be applied to various electronic devices with EGC function.
  • the electronic device can be a wearable electronic device, such as a watch, a bracelet, a headset, a helmet (such as a virtual reality helmet), etc., or a non-wearable device, such as a portable electronic device with ECG detection function, such as a mobile phone, a tablet computer, a laptop computer, etc.
  • a wearable electronic device such as a watch, a bracelet, a headset, a helmet (such as a virtual reality helmet), etc.
  • a non-wearable device such as a portable electronic device with ECG detection function, such as a mobile phone, a tablet computer, a laptop computer, etc.
  • portable electronic devices include but are not limited to devices equipped with Or a portable electronic device with other operating systems. It should be understood that the above electronic device may not be a portable electronic device, but a desktop computer capable of detecting ECG, etc., which is not limited in this embodiment.
  • FIG. 1 is a schematic diagram of a structure of a wearable device 1 in an embodiment of the present application
  • Figure 2 is a schematic diagram of a part of the structure of a wearable device in an embodiment of the present application.
  • the wearable device 1 may include a housing 10, a display component 20, and an ECG button component 30, and the display component 20 is disposed in the housing 10.
  • One side of the display component 20 may be exposed to the outside of the housing 10, so that the user can view the information of the wearable device 1 through the display component 20.
  • the ECG button component 30 may be disposed on the side of the housing 10, and a circuit board (not shown in the figure) is disposed inside the housing 10.
  • the circuit board may be a flexible printed circuit 130 (flexible printed circuit, FPC) or a printed circuit board (printed circuit boards, PCB).
  • a part of the ECG button component 30 may be located inside the housing 10 and connected to the circuit board to achieve circuit conduction, thereby realizing the ECG function of the wearable device 1.
  • FIG. 3 is a schematic diagram of the cross-sectional structure of the wearable device 1 in FIG. 2 .
  • the ECG button assembly 30 may include a button portion 310, a plastic bar tube 330, a metal bar tube 340, an elastic member 320, and a conductive sheet 360.
  • the side wall of the housing 10 may be provided with a through hole, and the plastic bar tube 330 may be embedded in the through hole, with a portion of the plastic bar tube 330 located outside the housing 10 and a portion located inside the housing 10.
  • the plastic bar tube 330 may be a cylindrical structure or a square structure, and the portion of the plastic bar tube 330 located inside the housing 10 is provided with a clamping portion 331, the size of the clamping portion 331 may be larger than the diameter of the through hole, and the clamping portion 331 may be clamped with the inner surface of the housing 10 to ensure that the plastic bar tube 330 will not be separated from the housing 10 through the through hole.
  • the plastic bar tube 330 is provided with a first through hole inside, and the metal bar tube 340 can be embedded in the first through hole.
  • the side of the plastic bar tube 330 located outside the housing 10 can be provided with a first step structure, and the metal bar tube 340 is provided with a second step structure.
  • the second step structure can fit with the first step structure, so that the metal bar tube 340 remains relatively fixed with the housing 10 under the action of the first step structure.
  • One end of the metal bar tube 340 can be located outside the housing 10, and the surface of the end of the metal bar tube 340 located outside the housing 10 is lower than the surface of the end of the plastic bar tube 330 located outside the housing 10, that is, the metal bar tube 340 is located inside the plastic bar tube 330.
  • One end of the metal bar tube 340 located inside the housing 10 can be fixed to the plastic bar tube 330 through a bar tube nut 350.
  • the bar tube nut 350 can be provided with a threaded hole, and the portion of the metal bar tube 340 located inside the bar tube nut 350 is provided with a thread, so that the metal bar tube 340 can be connected to the bar tube nut 350 through threaded cooperation.
  • the side of the bar tube nut 350 away from the metal bar tube 340 can be protruded along the circumference of the bar tube nut 350.
  • the protruding portion can also be located between the plastic bar tube 330 to cooperate with the clamping portion of the plastic bar tube 330 to keep the plastic bar tube 330 fixed to the housing 10.
  • FIG. 4 is a schematic diagram of the structure of the conductive sheet of the wearable device in FIG. 2 being connected to the circuit board.
  • the conductive sheet 360 can be fixed to the side of the bar tube nut 350 that is away from the metal bar tube 340.
  • the conductive sheet 360 can be connected to the bar tube nut 350 by welding.
  • a flanged flange 361 is provided on the side of the conductive sheet 360 that is away from the metal bar tube 340.
  • a spring sheet 140 is provided on the circuit board 130. The conductive sheet 360 can contact the spring sheet 140 through the flanged flange 361, thereby achieving electrical connection with the circuit board 130.
  • the button portion 310 may include a button cap 312 and a button rod 311.
  • a second through hole is provided inside the metal bar tube 340.
  • the first end of the button rod 311 is located outside the housing 10, and the second end may pass through the second through hole, the bar tube nut 350, and the conductive sheet 360 in sequence, and then be located inside the housing 10.
  • the button cap 312 is connected to the first end of the button rod 311.
  • the plastic bar tube 330 may be located inside the button cap 312 and have a certain distance from the bottom of the button cap 312.
  • the elastic member 320 may be a spring.
  • the elastic member 320 may be sleeved on the button rod 311.
  • One end of the elastic member 320 may be connected to the button cap 312, and the other end may be connected to the metal bar tube 340.
  • the button rod 311 may be driven to move along its axial direction relative to the housing 10, so that the button rod 311 may contact other components inside the housing 10. It can be understood that when the key cap 312 is pressed, since the elastic member 320 is fixedly connected to one end of the metal tube 340, the elastic member 320 can be compressed and store force. When the key cap 312 loses the pressing force, the elastic member 320 can be reset under the elastic force, thereby driving the key cap 312 to return to its original position.
  • the button cap 312 and the button rod 311 may be an integrated structure or a split structure, which is not limited in this embodiment.
  • the conduction circuit of the ECG key assembly 30 in this embodiment can be: key cap 312-elastic member 320-metal tube 340-tube nut 350-conductive sheet 360-circuit board 130. Since the electrical connection between the ECG key assembly 30 and the circuit board 130 does not rely on the key rod 311, but is connected through other metal structural members, other metal structures can be adaptively designed according to the structure of the housing 10, which can help reduce the volume of the ECG key assembly 30 while ensuring the conduction of the circuit.
  • the second end of the button rod 311 may be provided with a limiting portion 3111, and the limiting portion 3111 may be arranged around the button rod 311.
  • the elastic member 320 has the function of moving the button cap 312 away from the housing 10.
  • the limiting portion 3111 may abut against the surface of the side of the conductive sheet 360 away from the metal bus 340, thereby limiting the button rod 311.
  • the button rod 311 moves away from the conductive sheet 360, and at this time, the limiting portion 3111 is out of contact with the conductive sheet 360.
  • Figure 5 is an enlarged structural diagram of the ECG button assembly in Figure 2.
  • the side wall of the housing 10 may include a plastic layer 120 or include a plastic layer 120 and a metal layer 110.
  • the plastic layer 120 is located inside and the metal layer 110 is located outside. It can be understood that the wearable device 1 can be made more beautiful by providing the metal layer 110.
  • the plastic tube 330 and the plastic layer 120 can also be an integrated structure. Since the button cap 312 is conductive, when the housing 10 includes a metal layer 110, the distance between the button cap 312 and the metal layer 110 can be greater than the distance between the plastic tube 330 and the bottom of the button cap 312.
  • the brim of the key cap 312 can move closer to the metal layer 110.
  • the plastic tube 330 first contacts the key cap 312 and limits the key cap 312 from continuing to move toward the metal layer 110, thereby preventing the key cap 312 from contacting the metal layer 110, thereby avoiding affecting the conduction of the ECG circuit.
  • the distance between the brim of the key cap 312 and the metal layer 110 may be 0.15 mm to 0.2 mm, which can prevent the key cap 312 from protruding too much from the housing 10 and avoid contact between the key cap 312 and the metal layer 110 .
  • the distance between the brim of the key cap 312 and the plastic layer 120 may be greater than or equal to the distance between the bottom of the key cap 312 and the plastic tube 330 .
  • a first sealing ring 370 may be provided between the key rod 311 and the metal bar tube 340, and the first sealing ring 370 may be arranged around the key rod 311 to improve the waterproof performance between the key rod 311 and the metal bar tube 340.
  • the key rod 311 may be provided with a first groove along the circumference, and the first sealing ring 370 may be clamped in the first groove, and the first sealing ring 370 abuts against the side wall of the metal bar tube 340.
  • the number of the first sealing ring 370 may be one, two, or more, and when the number of the first sealing ring 370 is two or more, the multiple first sealing rings 370 may be arranged along the axial direction of the key rod 311.
  • a second sealing ring 380 may be provided between the metal bar tube 340 and the plastic bar tube 330, and the second sealing ring 380 may be arranged around the metal bar tube 340 to improve the waterproof performance between the metal bar tube 340 and the plastic bar tube 330.
  • the metal bar tube 340 may be provided with a second groove along the circumference, and the second sealing ring 380 may be clamped in the second groove, and the second sealing ring 380 abuts against the side wall of the plastic bar tube 330.
  • the number of the second sealing ring 380 may be one, two, or more. When the number of the second sealing ring 380 is two or more, the plurality of second sub-sealing rings may be arranged along the axial direction of the metal bar tube 340.
  • FIG6 is a partial structural diagram of another wearable device in an embodiment of the present application
  • FIG8 is a cross-sectional structural diagram of the ECG button assembly in FIG6
  • the housing 10 may include a metal layer 110 and a plastic layer 120
  • the ECG button assembly 30 may include a button portion, a metal bar tube 340, a bar tube nut 350, an elastic member 320, and a conductive sheet 360.
  • the metal layer 110 is provided with an opening, and the plastic layer 120 is provided with a through hole.
  • the metal bar tube 340 is inserted through the opening of the metal layer 110 and the through hole of the plastic layer 120, one end of the metal bar tube 340 is located inside the housing 10, and the other end is located outside the housing 10.
  • the bar tube nut 350 is located at one end of the metal bar tube 340 located inside the housing 10, and is threadedly connected with the metal bar tube 340.
  • the conductive sheet 360 is fixed to the side of the bar tube nut 350 away from the metal bar tube 340, and the conductive sheet 360 is used to contact with the circuit board 130 and realize electrical connection.
  • the key part includes a key rod 311 and a key cap 312.
  • the first end of the key cap 312 is located outside the housing 10, and the second end is inserted through the metal bar tube 340, the bar tube nut 350 and the conductive sheet 360 in sequence and then located inside the housing 10.
  • the elastic member 320 is sleeved on the key rod 311, one end of which is connected to the key cap 312, and the other end is connected to the metal bar tube 340.
  • the conducting circuit of the ECG button assembly 30 in this embodiment is: button cap 312 - elastic member 320 - metal tube 340 - tube nut 350 - conductive sheet 360 - circuit board 130 .
  • the diameter of the opening of the metal layer 110 is greater than the diameter of the via hole of the plastic layer 120. Specifically, the diameter of the opening of the metal layer 110 is greater than or equal to the diameter of the key cap 312, that is, the portion of the plastic layer 120 facing the opening is exposed to the opening.
  • the diameter of the portion of the metal bar tube 340 located outside the housing 10 is greater than the diameter of the portion located inside the housing 10, so that the metal bar tube 340 forms a step structure, and the surface of the step structure perpendicular to the axial direction of the metal bar tube 340 is located outside the housing 10 and abuts against the surface of the plastic layer 120 facing the metal layer 110 to relatively fix the metal bar tube 340 and the plastic layer 120.
  • a gasket 390 can be provided between the step surface of the metal bar tube 340 and the plastic layer 120 to ensure a stable connection between the two.
  • the brim of the key cap 312 directly faces the structure of the plastic layer 120, that is, the key cap 312 can directly contact the plastic layer 120, and will not affect the conduction of the ECG circuit. Therefore, in this embodiment, the relationship between the size between the brim of the key cap 312 and the plastic layer 120 and the size between the bottom of the key cap 312 and the metal tube 340 is not limited.
  • the ECG button assembly 30 in this embodiment can also be regarded as including a plastic tube, a surface of the plastic tube facing the button cap 312 is flush with the surface of the plastic layer 120, and the plastic tube and the plastic layer 120 are an integrated structure.
  • Fig. 7 is a schematic diagram of the structure of the conductive sheet of the wearable device connected to the circuit board in Fig. 6.
  • a spring sheet 140 may be provided on the circuit board 130, and the conductive sheet 360 may be electrically connected to the circuit board 130 through the spring sheet 140.
  • the shell in the embodiment of the present application can be a metal shell, a non-metal shell, or a metal and non-metal injection molded shell, and this embodiment does not limit this.

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Abstract

本申请涉及电子设备技术领域，公开了一种ECG按键组件及电子设备。ECG按键组件包括按键部、塑胶巴管、金属巴管、弹性件和导电片。壳体设有过孔，塑胶巴管嵌设于过孔。塑胶巴管的内部设有第一通孔，金属巴管嵌设于第一通孔，导电片连接于金属巴管位于壳体的内部的一端，导电片与电路板接触并电性连接。按键部包括按键帽和按键杆，金属巴管的内部设有第二通孔，按键杆穿设于第二通孔，按键杆的第一端位于壳体的外部，按键帽连接于按键杆的第一端。弹性件套设于按键杆，弹性件的一端与按键帽连接，另一端与金属巴管连接，按键部可相对壳体移动。本申请公开的ECG按键组件，不仅可实现ECG电路导通，还可减小按键组件的体积。

Description

ECG按键组件及电子设备
相关申请的交叉引用
本申请要求在2022年10月31日提交中国专利局、申请号为202222900444.3、申请名称为“ECG按键组件及电子设备”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
本申请涉及电子设备技术领域，特别涉及一种ECG按键组件及电子设备。
背景技术
心电图(electrocardiogram，ECG)可以反映用户的健康状态，比如，ECG可以反映心脏的疾病(比如心率失常)等等。因此，越来越多的电子设备在设计生产时，对电子设备增加ECG功能。目前，具备ECG功能的电子设备的ECG按键的形状通常为方形，在这种方形按键的造型下，ECG通路为按键帽-弹簧支架-螺钉-导电片，导电片通过螺钉锁附在按键的支架上。由于上述ECG按键的占用空间较多，当电子设备的体积较小时，导致ECG按键空间受限。
发明内容
本申请提供一种ECG按键组件及电子设备，在实现ECG电路导通的同时，还可减小ECG按键组件的体积。
第一方面，本申请可提供一种ECG按键组件，该ECG按键组件应用于电子设备，电子设备可包括壳体和位于壳体内的电路板。ECG按键组件包括按键部、塑胶巴管、金属巴管、弹性件和导电片。壳体设有过孔，塑胶巴管可嵌设于过孔。巴管的内部设有第一通孔，金属巴管可嵌设于第一通孔，金属巴管的一部分位于壳体的外部。导电片连接于金属巴管位于壳体的内部的一端，导电片与电路板接触并电性连接。按键部可包括按键帽和按键杆，金属巴管的内部设有第二通孔，按键杆可穿设于第二通孔，按键杆的第一端位于壳体的外部，按键帽连接于按键杆的第一端。弹性件套设于按键杆，弹性件的一端与按键帽连接，另一端与金属巴管连接，按键部可相对壳体沿按键杆的轴线方向移动。
本申请提供的ECG按键组件，设置了按键部、弹性件、金属巴管和导电片，由于上述结构件均具有导电的特性，ECG的导通电路可为，按键帽-弹性件-金属巴管-导电片-电路板，以此来实现ECG电路的导通。另外，本申请中的ECG按键组件，省去了现有的螺钉，并且不依赖于按键杆进行导电，可使得导电结构与壳体内部结构做适应性设计，从而可减小ECG按键组件的体积。
在一些可能的实施方案中，还可设置巴管螺帽，该巴管螺帽位于金属巴管远离按键帽的一端。巴管螺帽设有螺纹孔，金属巴管可与巴管螺帽螺纹装配，导电片连接于巴管螺帽背离金属巴管的一侧。通过设置巴管螺帽，使得巴管螺帽既可对金属巴管进到定位的作用，还可起到电路导通的作用。
在一些可能的实施方案中，按键杆的第二端穿过导电片后可位于导电片背离金属巴管的一侧，按键杆的第二端设有限位部，限位部环绕按键杆设置。当按键部处于初始状态时，限位部与导电片背离金属巴管的一侧表面抵接，当按键部被按压时，限位部与导电片脱离接触。通过设置限位部，可在初始状态时，对按键杆进行限位，避免按键杆脱离于壳体。
在一些可能的实施方案中，壳体包括金属层和塑胶层。塑胶层位于金属层朝向壳体的内部的一侧，以此来增加电子设备的美观性。
在一些可能的实施方案中，塑胶巴管的一部分可位于按键帽的内部，沿按键杆的轴线方向，按键帽与塑胶巴管之间的距离小于按键帽与金属层之间的距离。这样，当按键帽被按压时，可防止按键帽与金属层接触，从而避免影响ECG的导通电路。
在一些可能的实施方案中，按键帽与金属层之间的距离为0.15mm～0.2mm。该距离可使得按键帽不与金属层接触，还可避免按键帽突出壳体的部分太多导致电子设备不美观。
在一些可能的实施方案中，金属层设有开口，塑胶巴管朝向按键帽的一侧表面与塑胶层朝向金属层的表面平齐，塑胶巴管暴露于开口，金属巴管位于壳体外的部分与塑胶层朝向金属层的一侧表面抵接。通过将塑胶巴管暴露于金属层的开口，可避免金属巴管与金属层之间接触。
在一些可能的实施方案中，金属巴管的一部分位于按键帽内，塑胶巴管的外径大于等于按键帽的直径。由于塑胶巴管的外径大于等于按键帽的直径，按键帽在被按压时，及时其表面与壳体表面接触时，也是与塑胶层接触，从而可更好地避免按键帽与金属层接触。
在一些可能的实施方案中，金属巴管与塑胶层抵接的部位可设有垫片。通过设置垫片，不仅可使得金属巴管与塑胶层之间固定，还可增加二者之间的连接部位的密封性能。
在一些可能的实施方案中，塑胶巴管与塑胶层可为一体式结构，这样可便于节省工艺成本。
在一些可能的实施方案中，导电片背离按键部的一侧设有翻边法兰，导电片通过翻边法兰与电路板接触，以此来保证导电片与电路板稳定接触并电连接。
在一些可能的实施方案中，电路板设有弹片，电路板通过弹片与导电片接触，以此来保证导电片与电路板稳定接触并电连接。
在一些可能的实施方案中，按键杆与金属巴管之间设有第一密封圈，以提高按键杆与金属巴管之间的防水性能。
在一些可能的实施方案中，金属巴管与塑胶巴管之间设有第二密封圈，以提高金属巴管与塑胶巴管之间的防水性能。
第二方面，本申请提供一种电子设备，包括壳体和如第一方面任一可能的实施方案中所述的ECG按键组件，ECG按键组件可设置于壳体。
本申请中的电子设备，不仅可实现ECG的功能，还可便于控制壳体的体积，以此来使得电子设备整体更加美观。
附图说明
图1为本申请实施例中穿戴设备的一种结构示意图；
图2为本申请实施例中穿戴设备的部分结构示意图；
图3为图2中ECG按键组件处的剖面结构示意图；
图4为图2中穿戴设备的导电片与电路板连接的结构示意图；
图5为图2中ECG按键组件处的放大结构示意图；
图6为本申请实施例中又一种穿戴设备的部分结构示意图；
图7为图6中穿戴设备的导电片与电路板连接的结构示意图；
图8为图6中ECG按键组件处的剖面结构示意图。
附图标记：
1-穿戴设备；10-壳体；110-金属层；120-塑胶层；130-电路板；140-弹片；20-显示组件；30-ECG
按键组件；310-按键部；311-按键杆；3111-限位部；312-按键帽；320-弹性件；330-塑胶巴管；331-卡接部；340-金属巴管；350-巴管螺帽；360-导电片；361-翻边法兰；370-第一密封圈；380-第二密封圈；390-垫片。
具体实施方式
以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
随着ECG技术的发展，ECG按键成为电子设备的一种必有设计。目前，设置有ECG按键的导通路径通常为方形，在这种方形按键的造型下，其ECG通路为按键帽-弹簧支架-螺钉-导电片、其中，导电片可通过螺钉将导电片锁附在方形的按键支架上。为保证导电片与按键支架之间紧固连接，通常设置两个螺钉，这就导致ECG按键的体积较大。当电子设备的体积较小时，导致上述ECG按键没有足够的 空间，而影响ECG按键的功能。
基于此，本申请实施例提供一种ECG按键部件及电子设备，在保证ECG按键组件导通的同时，还可减小ECG按键组件的体积。以下将结合具体的实施例对上述ECG按键组件的结构及电子设备进行详细说明。
本申请实施例中的ECG按键组件可应用于具有EGC功能的各种电子设备上。电子设备可以是穿戴式电子设备，比如手表、手环、耳机、头盔(比如虚拟现实头盔)等等，还可以是非穿戴式设备，比如具有ECG检测功能的便携式电子设备，比如手机、平板电脑、笔记本电脑等。便携式电子设备的示例性实施例包括但不限于搭载或者其它操作系统的便携式电子设备。应当理解的是，上述电子设备也可以不是便携式电子设备，而是能够检测ECG的台式计算机等，本实施例不限定。本申请以下实施例以电子设备是穿戴设备为例进行介绍。
参考图1和图2，图1为本申请实施例中穿戴设备1的一种结构示意图，图2为本申请实施例中穿戴设备的部分结构示意图。该穿戴设备1可包括壳体10、显示组件20和ECG按键组件30，显示组件20设置于所述壳体10。显示组件20的一侧可暴露于壳体10的外部，以便于用户可通过显示组件20查看穿戴设备1的信息。ECG按键组件30可设置于壳体10的侧边，壳体10的内部设置有电路板(图中未示出)，该电路板可以是柔性印刷电路板130(flexible printed circuit，FPC)或者印制电路板(printed circuit boards，PCB)，ECG按键组件30的一部分可位于壳体10的内部，并与电路板连接以实现电路导通，从而实现穿戴设备1的ECG功能。
参考图2和图3，图3为图2中穿戴设备1的截面结构示意图。ECG按键组件30可包括按键部310、塑胶巴管330、金属巴管340、弹性件320以及导电片360。壳体10的侧壁可设有过孔，塑胶巴管330可嵌设于该过孔中，塑胶巴管330的一部分位于壳体10的外部，一部分位于壳体10的内部。具体的，塑胶巴管330可为圆柱形结构或者方形结构，塑胶巴管330位于壳体10内的部分设有卡接部331，该卡接部331的尺寸可大于过孔的直径，卡接部331可与壳体10的内表面卡接，以保证塑胶巴管330不会由过孔脱离于壳体10。
塑胶巴管330的内部设有第一通孔，金属巴管340可嵌设于该第一通孔内。具体的，塑胶巴管330位于壳体10外部的一侧可设有第一台阶结构，金属巴管340设有第二台阶结构，当金属巴管340嵌设于塑胶巴管330内时，第二台阶结构可与第一台阶结构契合，以使得金属巴管340在第一台阶结构的作用下与壳体10保持相对固定。金属巴管340的一端可位于壳体10的外部，并且，金属巴管340位于壳体10外部的一端表面低于塑胶巴管330位于壳体10外部的一端表面，也即，金属巴管340位于塑胶巴管330的内部。
金属巴管340位于壳体10的内部的一端可通过巴管螺帽350与塑胶巴管330进行固定。巴管螺帽350可设有螺纹孔，金属巴管340位于巴管螺帽350内的部位设有螺纹，这样，金属巴管340可与巴管螺帽350之间可通过螺纹配合连接。另外，巴管螺帽350背离金属巴管340的一侧可沿巴管螺帽350的周向突出设置，当巴管螺帽350与金属巴管340螺纹连接后，该突出的部位还可与塑胶巴管330之间，以配合塑胶巴管330的卡接部对塑胶巴管330进行定位，保持塑胶巴管330固定于壳体10。
结合图3和图4，图4为图2中穿戴设备的导电片与电路板连接的结构示意图。导电片360可固定于巴管螺帽350背离金属巴管340的一侧，示例性地，导电片360可与巴管螺帽350通过焊接的方式连接。导电片360背离金属巴管340的一侧设有翻边法兰361，电路板130上设有弹片140，导电片360可通过该翻边法兰361与弹片140进行接触，从而实现与电路板130之间的电连接。
回看图3，按键部310可包括按键帽312和按键杆311，金属巴管340的内部设有第二通孔，按键杆311的第一端位于壳体10的外部，第二端可依次穿过第二通孔、巴管螺帽350和导电片360后，位于壳体10的内部。按键帽312连接于按键杆311的第一端，塑胶巴管330可位于按键帽312内，并与按键帽312的底部具有一定的距离。弹性件320可为弹簧，弹性件320可套设于按键杆311，弹性件320的一端可与按键帽312连接，另一端与金属巴管340连接。在本实施例中，当用户按压按键帽312时，可驱动按键杆311相对于壳体10沿其轴线方向移动，从而使得按键杆311可与壳体10内的其它部件接触。可以理解的，当按键帽312被按压时，由于弹性件320连接于金属巴管340的一端固定，弹性件320可被压缩并蓄力，当按键帽312失去按压的作用力后，弹性件320可在弹性作用力下复位，从而带动按键帽312恢复原位。
上述按键帽312和按键杆311可以是一体式结构或者分体式结构，本实施例对此不做限定。
应当理解的，本实施例中的ECG按键组件30的导通电路可为：按键帽312-弹性件320-金属巴管340-巴管螺帽350-导电片360-电路板130。由于该ECG按键组件30与电路板130之间的电连接不依赖于按键杆311，而是通过其它金属结构件进行连接，可使得其它金属结构根据壳体10的结构而适应性设计，在保证电路导通的同时，可有利于减小ECG按键组件30的体积。
按键杆311的第二端可设有限位部3111，该限位部3111可环绕按键杆311设置。当按键部310处于初始状态(即未被按压)时，由于弹性件320对按键帽312具有使按键帽312远离壳体10移动的作用，这时，限位部3111可与导电片360背离金属巴管340的一侧表面抵接，从而可对按键杆311起到限位的作用。当按键部310被按压时，按键杆311远离导电片360移动，这时，限位部3111脱离与导电片360的接触。
结合图3和图5，图5为图2中ECG按键组件处的放大结构示意图。在本实施例中，壳体10的侧壁可包括塑胶层120或者包括塑胶层120和金属层110。当壳体10包括塑胶层120和金属层110时，塑胶层120位于内部，金属层110位于外部，可以理解的，通过设置金属层110可使得穿戴设备1更加美观。并且，塑胶巴管330与塑胶层120也可为一体式结构。由于按键帽312可导电，当壳体10包括金属层110时，可使得按键帽312与金属层110之间的间距大于塑胶巴管330与按键帽312的底部之间的距离。当按键帽312被按压时，按键帽312的帽檐可靠近金属层110移动，而在按键帽312的移动过程中，塑胶巴管330先与按键帽312接触，并限位按键帽312继续朝向金属层110移动，也即防止按键帽312与金属层110接触，以此来避免影响ECG的电路导通。
示例性地，按键帽312的帽檐与金属层110之间的距离可为0.15mm～0.2mm，这样既不会使得按键帽312过于突出壳体10设置，也可避免按键帽312与金属层110接触。
应当注意的是，当壳体10只包括塑胶层120时，按键帽312的帽檐与塑胶层120之间的距离可大于或等于按键帽312的底部与塑胶巴管330之间的距离。
另外，按键杆311与金属巴管340之间可设置第一密封圈370，第一密封圈370可绕设于按键杆311，以用于提高按键杆311与金属巴管340之间的防水性能。具体的，按键杆311可沿周向设置第一凹槽，第一密封圈370可卡接于第一凹槽内，并且，第一密封圈370与金属巴管340的侧壁抵接。第一密封圈370的数量可以为一个或两个或多个，当第一密封圈370的数量为两个或多个时，多个第一密封圈370可沿按键杆311的轴向排列。
金属巴管340与塑胶巴管330之间可设置第二密封圈380，第二密封圈380可绕设于金属巴管340，以用于提高金属巴管340与塑胶巴管330之间的防水性能。具体的，金属巴管340可沿周向设置第二凹槽，第二密封圈380可卡接于第二凹槽内，并且，第二密封圈380与塑胶巴管330的侧壁抵接。第二密封圈380的数量可以为一个或两个或多个，当第二密封圈380的数量为两个或多个时，多个第二分密封圈可沿金属巴管340的轴向排列。
参考图6和图8，图6为本申请实施例中又一种穿戴设备的部分结构示意图，图8为图6中ECG按键组件处的剖面结构示意图。在本实施例中，壳体10可包括金属层110和塑胶层120，ECG按键组件30可包括按键部、金属巴管340、巴管螺帽350、弹性件320以及导电片360。
金属层110设有开口，塑胶层120设有过孔，金属巴管340穿设于金属层110的开口和塑胶层120的过孔后，其一端位于壳体10的内部，另一端位于壳体10的外部。巴管螺帽350位于金属巴管340位于壳体10内部的一端，并与金属巴管340螺纹连接。导电片360固定于巴管螺帽350背离金属巴管340的一侧，导电片360用于与电路板130接触并实现电连接。按键部包括按键杆311和按键帽312，按键帽312的第一端位于壳体10的外部，第二端依次穿设于金属巴管340、巴管螺帽350和导电片360后位于壳体10的内部。弹性件320套设于按键杆311，其一端连接于按键帽312，另一端连接于金属巴管340。可以理解的，本实施例中ECG按键组件30的导通电路为：按键帽312-弹性件320-金属巴管340-巴管螺帽350-导电片360-电路板130。
金属层110的开口的直径大于塑胶层120的过孔的直径，具体的，金属层110的开口的直径大于等于按键帽312的直径，也即，塑胶层120正对于开口的部位暴露于开口。金属巴管340位于壳体10外的部位的直径大于其位于壳体10内的部位的直径，以使得金属巴管340形成有台阶结构，该台阶结构垂直于金属巴管340的轴线方向的表面位于壳体10的外部，并与塑胶层120朝向金属层110的一侧表面抵接，以将金属巴管340与塑胶层120之间相对固定。具体实施时，金属巴管340的台阶面与塑胶层120之间可设置垫片390，以保证二者之间稳定的连接关系。
可以理解的，当金属层110的开口的直径大于按键帽312的直径时，按键帽312的帽檐正对的均是塑胶层120的结构，也就是说，按键帽312可直接与塑胶层120接触，也不会影响ECG的电路导通。因此，本实施例中对按键帽312的帽檐与塑胶层120之间的尺寸和按键帽312的底部与金属巴管340之间的尺寸之间的关系不做限定。
另外，值得注意的是，本实施例中的ECG按键组件30也可视为包括塑胶巴管，该塑胶巴管朝向按键帽312的一侧表面与塑胶层120的表面平齐，并且塑胶巴管与塑胶层120为一体式结构。
参考图7，图7为图6中穿戴设备的导电片与电路板连接的结构示意图。作为一种实施方案，电路板130上可设置弹片140，导电片360可通过弹片140与电路板130实现电连接。
可以理解的是，本申请实施例中的壳体可以是金属壳体、非金属壳体、金属与非金属注塑壳体，本实施例对此不做限定。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种ECG按键组件，应用于电子设备，所述电子设备包括壳体和位于所述壳体内的电路板；其特征在于，所述ECG按键组件包括按键部、塑胶巴管、金属巴管、弹性件和导电片；
    所述壳体设有过孔，所述塑胶巴管嵌设于所述过孔；
    所述塑胶巴管的内部设有第一通孔，所述金属巴管嵌设于所述第一通孔，所述金属巴管的一部分位于所述壳体的外部，所述导电片连接于所述金属巴管位于所述壳体的内部的一端，所述导电片与所述电路板接触并电性连接；
    所述按键部包括按键帽和按键杆，所述金属巴管的内部设有第二通孔，所述按键杆穿设于所述第二通孔，所述按键杆的第一端位于所述壳体的外部，所述按键帽连接于所述按键杆的第一端；
    所述弹性件套设于所述按键杆，所述弹性件的一端与所述按键帽连接，另一端与所述金属巴管连接，所述按键部可相对所述壳体沿所述按键杆的轴线方向移动。
  2. 根据权利要求1所述的ECG按键组件，其特征在于，还包括巴管螺帽，所述巴管螺帽位于所述金属巴管远离所述按键帽的一端；
    所述巴管螺帽设有螺纹孔，所述金属巴管与所述巴管螺帽螺纹装配；
    所述导电片连接于所述巴管螺帽背离所述金属巴管的一侧。
  3. 根据权利要求1或2所述的ECG按键组件，其特征在于，所述按键杆的第二端穿过所述导电片后位于所述导电片背离所述金属巴管的一侧，所述按键杆的第二端设有限位部，所述限位部环绕所述按键杆设置；
    当所述按键部处于初始状态时，所述限位部与所述导电片背离所述金属巴管的一侧表面抵接，当所述按键部被按压时，所述限位部与所述导电片脱离接触。
  4. 根据权利要求1～3任一项所述的ECG按键组件，其特征在于，所述壳体包括金属层和塑胶层，所述塑胶层位于所述金属层朝向所述壳体的内部的一侧。
  5. 根据权利要求4所述的ECG按键组件，其特征在于，所述塑胶巴管的一部分位于所述按键帽的内部，沿所述按键杆的轴线方向，所述按键帽与所述塑胶巴管之间的距离小于所述按键帽与所述金属层之间的距离。
  6. 根据权利要求5所述的ECG按键组件，其特征在于，所述按键帽与所述金属层之间的距离为0.15mm～0.2mm。
  7. 根据权利要求4所述的ECG按键组件，其特征在于，所述金属层设有开口，所述塑胶巴管朝向所述按键帽的一侧表面与所述塑胶层朝向所述金属层的表面平齐，所述塑胶巴管暴露于所述开口，所述金属巴管位于所述壳体外的部分与所述塑胶层朝向所述金属层的一侧表面抵接。
  8. 根据权利要求7所述的ECG按键组件，其特征在于，所述金属巴管的一部分位于所述按键帽内，所述塑胶巴管的外径大于等于所述按键帽的直径。
  9. 根据权利要求7或8所述的ECG按键组件，其特征在于，所述金属巴管与所述塑胶层抵接的部位设有垫片。
  10. 根据权利要求4～9任一项所述的ECG按键组件，其特征在于，所述塑胶巴管与所述塑胶层为一体式结构。
  11. 根据权利要求1～10任一项所述的ECG按键组件，其特征在于，所述导电片背离所述按键部的一侧设有翻边法兰，所述导电片通过所述翻边法兰与所述电路板接触。
  12. 根据权利要求1～11任一项所述的ECG按键组件，其特征在于，所述电路板设有弹片，所述电路板通过所述弹片与所述导电片接触。
  13. 根据权利要求1～12任一项所述的ECG按键组件，其特征在于，所述按键杆与所述金属巴管之间设有第一密封圈。
  14. 根据权利要求1～13任一项所述的ECG按键组件，其特征在于，所述金属巴管与所述塑胶巴管之间设有第二密封圈。
  15. 一种电子设备，其特征在于，包括壳体和如权利要求1～14任一项所述的ECG按键组件，所述ECG按键组件设置于所述壳体。
PCT/CN2023/128896 2022-10-31 2023-10-31 Ecg按键组件及电子设备 WO2024094033A1 (zh)

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