WO2012152187A1 - 一种终端键盘结构及终端 - Google Patents

一种终端键盘结构及终端 Download PDF

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Publication number
WO2012152187A1
WO2012152187A1 PCT/CN2012/074696 CN2012074696W WO2012152187A1 WO 2012152187 A1 WO2012152187 A1 WO 2012152187A1 CN 2012074696 W CN2012074696 W CN 2012074696W WO 2012152187 A1 WO2012152187 A1 WO 2012152187A1
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WIPO (PCT)
Prior art keywords
button
silicone
terminal
keyboard structure
button cap
Prior art date
Application number
PCT/CN2012/074696
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English (en)
French (fr)
Inventor
冯健宏
Original Assignee
中兴通讯股份有限公司
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Publication of WO2012152187A1 publication Critical patent/WO2012152187A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/703—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by spacers between contact carrying layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2211/00—Spacers
    • H01H2211/002—Fluid or inflatable keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset

Definitions

  • the utility model relates to a wireless communication technology, in particular to a terminal keyboard structure and a terminal. Background technique
  • the functions of mobile terminals are gradually enriched and developed toward intelligent systems, such as mobile phones, personal digital assistants (PDAs), and the like.
  • mobile phones Taking mobile phones as an example, mobile phones have gradually changed from a simple call tool to a mobile terminal that integrates functions such as communication, entertainment, and work processing.
  • the requirements for the keyboard for the mobile terminal are becoming higher and higher.
  • the keyboard of the prior art generally adopts a structure in which the button cap 1 and the silicone backplane 2 are attached to each other.
  • a lower portion of the silicone base plate 2 is formed with a bump 3 (conductive post) which cooperates with the key film 4 in which the elastic piece is assembled to obtain a corresponding hand.
  • the button cap 1 is height-limited or is designed with a piano key structure. Can be supported by a silicone backing. Due to the area outside the bump of the key cap, there is a large gap between the silicone bottom plate 2 under the keycap 1 and the button film 4. When the button cap 1 is pressed, the edge area of the button cap 1 will sink. The button cap 1 will wobble around. Moreover, since the silicone bottom plate 2 between the adjacent button caps 1 is connected in a straight line, when the current button cap 1 sinks, the silicone backing plate 2 corresponding to the adjacent button caps is also sunk and causes adjacent key caps. Ups and downs. Summary of the invention
  • the utility model provides a terminal keyboard structure and a terminal, which are used for solving the problem that the button cap is shaken around and the adjacent button caps are mutually involved when the button cap is pressed in the prior art.
  • the utility model provides a terminal keyboard structure, comprising: a plurality of button caps, a shell between adjacent button caps, a silicone bottom plate located under the button caps and the shell, a keyboard printed circuit board, and the keyboard a button film with a shrapnel on the printed circuit board,
  • a silicone bottom plate located under the button cap is in direct contact with the button cap, and a bottom surface of the silicone backing plate under each button cap has a bump, the bump is located above the elastic piece; under the shell
  • the silicone backplane is connected to the silicone backing plate under the button cap by a sloping side wall.
  • the silicone bottom plate under the button cap is assembled and assembled with the button cap.
  • the bump is in direct contact with or separated from the button film covered on the elastic piece.
  • the silicone bottom plate located under the housing is in direct contact with the button film or in a separated state.
  • the silicone bottom plate located under the housing has a gap between the bottom plate and the housing, and has a boss structure protruding downward.
  • the angle between the sidewall of the boss structure and the plane of the button film is
  • the side wall of the boss structure and the plane of the button film form an angle of inclination of 45 degrees.
  • the silicone bottom plate under the button cap and the silicone bottom plate under the shell are integrally formed by silicone oil pressure molding.
  • the silica gel base plate is formed by molding or attaching a silicone rubber with a thermoplastic elastomer rubber TPU or a polycarbonate PC or a polyethylene terephthalate PET film.
  • the utility model also provides a terminal, comprising the above terminal keyboard structure.
  • the utility model has the following beneficial effects:
  • the utility model effectively improves the swaying of the button cap and the linkage fluctuation of the adjacent button caps caused by the forcelessness of the button cap when the button cap is pressed by using the silica gel base plate having the inclined side wall boss structure. The situation optimizes the user experience.
  • Figure 1 is a schematic structural view of a mobile phone
  • FIG. 1 is a schematic view showing the overall structure of a keyboard in the prior art
  • FIG. 3 is a schematic cross-sectional structural view of a keyboard in the prior art
  • FIG. 4 is a schematic structural view of a terminal keyboard structure in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the overall structure of a terminal keyboard according to an embodiment of the present invention. detailed description
  • the present invention provides a terminal keyboard structure, as shown in FIG. 4, including a plurality of button caps 41, a housing 42 between adjacent button caps 41, and the button caps 41 and a silicone backplane 43 under the housing 42 , a keyboard printed circuit board 44 , a button film 46 on the keyboard printed circuit board 44 with a spring 45 , a silicone backing 43 under the button cap 41 and the button
  • the cap 41 is in direct contact with each other, and the bottom surface of the silicone cap 43 below each button cap 41 has a bump 47, and the bump 47 is located above the elastic piece 45;
  • a silicone backing plate 43 located below the housing 42 and a silicone backing plate 43 located below the button cap 41 are connected by inclined side walls.
  • the side wall may be formed at an arbitrary angle with respect to the plane of the button film 46 or may not be a straight side to exhibit a certain arc shape.
  • the silicone bottom plate 43 below the button cap 41 is assembled and adhered to the button cap 41.
  • the silicone base plate 43 and the button cap 41 can be assembled by glue or double-sided adhesive bonding.
  • the bump 47 is in direct contact with the button film 46 covered on the elastic piece 45 or in a separated state.
  • the bump 47 and the button film 46 covered on the elastic piece 45 can be directly contacted or have There is a gap, but when it is necessary to ensure that the button cap 41 is forced to sink, the bump 47 is pressed to press the elastic piece 45 downward.
  • the silicone backing plate 43 located below the housing 42 is in direct contact with the button film 46 or in a separated state.
  • the silicone substrate 43 and the button film 46 may directly contact or have a gap, but it is necessary to ensure that the button cap 41 is in direct contact with the button film 46 when the button cap 41 is forced to sink.
  • the side wall of the boss structure 48 is an inclined side wall, that is, the upper end of the side wall of the boss structure 48 is connected to the silicone bottom plate 43 located under the button cap 41, and the lower end of the side wall is connected to the silicone rubber bottom plate 43 located under the casing 42.
  • the side wall of the boss structure 48 and the plane of the button film 46 are inclined at an angle of 20 to 75 degrees.
  • the side wall may form an arc with any angle of the plane of the button film 46 or a straight edge.
  • the side wall of the boss structure 48 and the plane of the button film 46 are inclined at an angle of 45 degrees.
  • the inclined side wall When the edge of the button cap 41 is pressed, or the button cap 41 is pressed obliquely, the inclined side wall provides a certain rebound force support, and to some extent, the direction of the force is directed to the direction in which the button film 46 is vertically pressed, due to the inclined side wall Evenly distributed around the bottom of the contour of the button cap 41, the support will exhibit a uniform linear shape; at the same time, the inclined side walls of the adjacent button caps 41 are not involved in each other due to being supported on the button film 46, and the adjacent button caps 41 are blocked. Linkage.
  • the silicone bottom plate 43 located below the button cap 41 and the silicone bottom plate 43 located below the housing 42 are formed by silicone oil molding.
  • the silicone base plate 43 is made of silica gel and thermoplastic elastomer (TPU) or polycarbonate (PC) or polyethylene terephthalate (PET, Polyethylene terephthalate).
  • TPU thermoplastic elastomer
  • PC polycarbonate
  • PET polyethylene terephthalate
  • the film is molded by in-mold or Attached together.
  • the silicone bottom plate 43 under the pressing button cap 41 When the button cap 41 is pressed, the silicone bottom plate 43 under the pressing button cap 41 is forced to sink, and the bump 47 on the silicone rubber substrate 43 is simultaneously forced to sink, pressing the elastic piece 45. Since the silicone bottom plate 43 under the housing 42 is a downwardly protruding boss structure 48, when the button cap 41 is pressed, or the button cap 41 is pressed obliquely, the inclined side wall provides a certain rebound force support, to a certain extent. The direction of the force is directed to the direction in which the button film 46 is vertically pressed.
  • the support Since the inclined side walls are evenly distributed around the bottom of the contour of the button cap 41, the support will exhibit a uniform linear shape; at the same time, the inclined side wall of the adjacent button cap 41 is Supported on the button film 46, they are not involved in each other, and the interlocking of the adjacent button caps 41 is blocked.
  • the utility model improves the user operation experience by using the silica gel base plate with the inclined side wall boss structure, effectively improving the shaking and undulating of the button cap and the linkage fluctuation of the adjacent button cap caused by the force not being centered when the button cap is pressed. .
  • the utility model also provides a terminal, which comprises the above terminal keyboard structure.
  • the silicone keyboard bottom plate 52 of the terminal keyboard located below the button cap 51 and the silicone bottom plate 52 located below the non-button cap 51 have inclined side walls 53 which are inclined at an angle of 20 degrees. Straight to 75 degrees or a certain arc, the straight edge is preferably 45 degrees.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)

Abstract

本实用新型实施例涉及无线通信技术领域，特别涉及终端键盘结构及终端，该终端键盘结构包括：多个按键帽、相邻按键帽之间的壳体、位于所述按键帽和壳体下方的硅胶底板、键盘印刷电路板、位于所述键盘印刷电路板与硅胶底板之间带有弹片的按键薄膜，位于所述按键帽下方的硅胶底板与所述按键帽直接接触，且每个按键帽下方的所述硅胶底板下面具有凸点，所述凸点位于所述弹片的上方；位于所述壳体下方的硅胶底板与位于按键帽下方的硅胶底板由倾斜侧壁连接。本实用新型实施例提供的终端键盘结构及终端，可以解决现有技术中存在的按压按键帽时按键帽向四周摇晃且相邻按键帽相互牵连的问题。

Description

一种终端键盘结构及终端 技术领域
本实用新型涉及无线通信技术， 尤其涉及一种终端键盘结构及终端。 背景技术
目前， 移动终端的功能逐渐丰富并朝智能系统的方向发展， 例如手机、 个人数字助理（PDA, Personal Digital Assistant )等。 以手机为例， 手机已 经逐步由单纯的通话工具转变为一部集通讯、 娱乐、 工作处理等诸多功能 于一体的移动终端。 为了改善移动终端的用户体验， 对用于移动终端的键 盘的要求越来越高。 如图 1所示， 为现有手机示意图， 现有的 P+R键盘中、 超薄键盘， 尤其是超薄联体键盘（俗称钢琴键）， 在工业设计的新颖性和结 构设计的短小、 超薄性方面都具有优势。
如图 2所示， 现有技术中键盘一般采用按键帽 1与硅胶底板 2贴合组 装的结构。 如图 3所示， 硅胶底板 2下部， 成型有凸点 3 (导电柱）， 该凸 点 3与组装有弹片的按键薄膜 4配合获得相应手感。
但是， 由于在按键帽 1 的下面 （通常是中心位置） 的硅胶底板 2只有 一个与按键薄膜 4对应的凸点 3做支撑， 按键帽 1受高度限制或是采用钢 琴键联体结构设计时仅能靠硅胶底板来支撑。 由于键帽下凸点之外的区域， 键帽 1下的硅胶底板 2与按键薄膜 4之间具有较大的空隙， 按动按键帽 1 时， 按键帽 1的边缘区域会随之下沉， 按键帽 1会向四周倒伏摇晃。 并且， 由于相邻按键帽 1之间的硅胶底板 2呈直线状相连， 这样， 当前按键帽 1 下沉时， 也会牵连相邻按键帽对应的硅胶底板 2 下沉， 并引起相邻键帽的 起伏。 发明内容
本实用新型提供一种终端键盘结构及终端， 用以解决现有技术中按压 按键帽时， 按键帽向四周摇晃且相邻按键帽相互牵连的问题。
本实用新型提供了一种终端键盘结构， 包括： 多个按键帽、 相邻按键 帽之间的壳体、 位于所述按键帽和壳体下方的硅胶底板、 键盘印刷电路板、 位于所述键盘印刷电路板之上、 带有弹片的按键薄膜，
位于所述按键帽下方的硅胶底板与所述按键帽直接接触， 且每个按键 帽下方的所述硅胶底板下面具有凸点， 所述凸点位于所述弹片的上方； 位于所述壳体下方的硅胶底板与位于按键帽下方的硅胶底板由倾斜侧 壁连接。
较佳的， 所述按键帽下方的硅胶底板与所述按键帽粘连组装。
较佳的 , 所述凸点与所述弹片上覆盖的按键薄膜直接接触或者呈分离 状态。
较佳的， 所述位于所述壳体下方的硅胶底板与所述按键薄膜直接接触 或者呈分离状态。
较佳的， 所述位于所述壳体下方的硅胶底板与所述壳体之间具有空隙， 并呈向下凸出的凸台结构。
较佳的， 所述凸台结构的侧壁与按键薄膜所在平面构成的倾斜角度为
20度至 75度。
较佳的， 所述凸台结构的侧壁与按键薄膜所在平面构成的倾斜角度为 45度。
较佳的， 所述位于所述按键帽下方的硅胶底板和位于所述壳体下方的 硅胶底板采用硅胶油压成型的一体结构。
较佳的， 所述硅胶底板由硅胶与热塑性弹性体橡胶 TPU或者聚碳酸酯 PC或者聚对苯二曱酸乙二醇酯 PET薄膜模内成型或贴附在一起构成。 本实用新型还提供了一种终端， 包括上述终端键盘结构。
本实用新型有益效果如下： 本实用新型通过使用具有倾斜侧壁凸台结 构的硅胶底板， 有效的改善了按压按键帽时受力不居中导致的按键帽晃动 起伏和相邻按键帽的联动起伏的状况， 优化了用户操作体验。 附图说明
图 1为手机的结构示意图；
图 1为现有技术中键盘的整体结构示意图；
图 3为现有技术中键盘的截面结构示意图；
图 4为本实用新型实施例中终端键盘结构的结构示意图；
图 5为本实用新型实施例中终端键盘的整体结构示意图。 具体实施方式
为了解决技术存在的问题， 本实用新型提供了一种终端键盘结构， 如 图 4所示， 包括多个按键帽 41、 相邻按键帽 41之间的壳体 42、 位于所述 按键帽 41和壳体 42下方的硅胶底板 43、 键盘印刷电路板 44、 位于所述键 盘印刷电路板 44之上、 带有弹片 45的按键薄膜 46,位于所述按键帽 41下 方的硅胶底板 43与所述按键帽 41直接接触， 且每个按键帽 41的下方的所 述硅胶底板 43下面具有凸点 47, 所述凸点 47位于弹片 45的上方；
位于所述壳体 42下方的硅胶底板 43与位于按键帽 41下方的硅胶底板 43由倾斜侧壁连接。而且该侧壁可以与按键薄膜 46所在平面构成任意角度 或并非直边而呈现一定弧形。
较佳的， 按键帽 41下方的硅胶底板 43与按键帽 41粘连组装。 该硅胶 底板 43和按键帽 41可以通过胶水或双面胶粘连组装在一起。
较佳的， 凸点 47与弹片 45上覆盖的按键薄膜 46直接接触或者呈分离 状态。 该凸点 47与弹片 45上覆盖的按键薄膜 46之间可以直接接触或者具 有空隙，但是需要确保按键帽 41受力下沉时，凸点 47受力将弹片 45下压。 较佳的， 位于壳体 42下方的硅胶底板 43与按键薄膜 46直接接触或者 呈分离状态。 该硅胶底板 43与按键薄膜 46之间可以直接接触或者具有空 隙， 但是需要确保按键帽 41受力下沉时， 硅胶底板 43与按键薄膜 46直接 接触。
较佳的， 位于壳体 42下方的硅胶底板 43与壳体 42之间具有空隙， 并 呈向下凸出的凸台结构 48。
该凸台结构 48的侧壁为倾斜侧壁， 也就是凸台结构 48的侧壁上端与 位于按键帽 41下方的硅胶底板 43相连， 侧壁下端与位于壳体 42下方的硅 胶底板 43相连。
较佳的， 凸台结构 48的侧壁与按键薄膜 46所在平面构成的倾斜角度 为 20度至 75度。 而且该侧壁可以与按键薄膜 46所在平面构成任意角度或 并非直边而呈现一定弧形。
较佳的， 凸台结构 48的侧壁与按键薄膜 46所在平面构成的倾斜角度 为 45度。
当按动按键帽 41边缘， 或倾斜按压按键帽 41 时， 倾斜侧壁会提供一 定的反弹力支撑， 在一定程度上， 将受力方向导向到垂直按压按键薄膜 46 的方向， 由于倾斜侧壁均匀分布于按键帽 41轮廓的四周底部， 支撑会呈现 均匀线形的特征； 同时相邻按键帽 41 的倾斜侧壁由于支撑在按键薄膜 46 上， 不会相互牵连， 阻断了相邻按键帽 41的联动。
较佳的， 位于按键帽 41下方的硅胶底板 43和位于壳体 42下方的硅胶 底板 43通过硅胶油压成型而成。
较佳的， 为了保障终端键盘的强度， 硅胶底板 43由硅胶与热塑性弹性 体橡胶（TPU, Thermoplastic polyurethanes )或者聚碳酸酯（PC )或者聚对 苯二曱酸乙二醇酯（PET, Polyethylene terephthalate )薄膜通过模内成型或 贴附在一起构成。
下面结合说明书附图对本实用新型的实施例进行详细说明。
当按压按键帽 41时， 按压按键帽 41下方的硅胶底板 43受力下沉， 硅 胶底板 43上的凸点 47同时受力下沉，按压弹片 45。 由于壳体 42下方的硅 胶底板 43呈向下凸出的凸台结构 48, 当按动按键帽 41边缘， 或倾斜按压 按键帽 41时， 倾斜侧壁会提供一定的反弹力支撑， 在一定程度上， 将受力 方向导向到垂直按压按键薄膜 46的方向， 由于倾斜侧壁均匀分布于按键帽 41轮廓的四周底部， 支撑会呈现均匀线形的特征； 同时相邻按键帽 41的倾 斜侧壁由于支撑在按键薄膜 46上， 不会相互牵连， 阻断了相邻按键帽 41 的联动。
本实用新型通过使用具有倾斜侧壁凸台结构的硅胶底板， 有效的改善 了按压按键帽时受力不居中导致的按键帽晃动起伏和相邻按键帽的联动起 伏的状况， 优化了用户操作体验。
本实用新型还提供了一种终端， 该终端包括上述终端键盘结构。如图 5 所示， 该终端键盘的位于按键帽 51下方的硅胶底板 52和位于非按键帽 51 下方的硅胶底板 52之间具有倾斜侧壁 53 , 该倾斜侧壁 53为倾斜角度范围 为 20度到 75度的直边或呈现一定弧形， 直边较佳角度为 45度。
显然， 本领域的技术人员可以对本实用新型进行各种改动和变型而不 脱离本实用新型的精神和范围。 这样， 倘若本实用新型的这些修改和变型 属于本实用新型权利要求及其等同技术的范围之内， 则本实用新型也意图 包含这些改动和变型在内。

Claims

1、 一种终端键盘结构， 包括： 多个按键帽、 相邻按键帽之间的壳体、 位于所述按键帽和壳体下方的硅胶底板、 键盘印刷电路板、 位于所述键盘 印刷电路板之上带有弹片的按键薄膜， 其特征在于 ,
位于所述按键帽下方的硅胶底板与所述按键帽直接接触， 且每个按键 帽下方的所述硅胶底板下面具有凸点， 所述凸点位于所述弹片的上方； 位于所述壳体下方的硅胶底板与位于按键帽下方的硅胶底板由倾斜侧 壁连接。
2、 如权利要求 1所述的终端键盘结构， 其特征在于， 所述按键帽下方 的硅胶底板与所述按键帽粘连组装。
3、 如权利要求 1所述的终端键盘结构， 其特征在于， 所述凸点与所述 弹片上覆盖的按键薄膜直接接触或者呈分离状态。
4、 如权利要求 1所述的终端键盘结构， 其特征在于， 所述位于所述壳 体下方的硅胶底板与所述按键薄膜直接接触或者呈分离状态。
5、 如权利要求 1所述的终端键盘结构， 其特征在于， 所述位于所述壳 体下方的硅胶底板与所述壳体之间具有空隙， 并呈向下凸出的凸台结构。
6、 如权利要求 5所述的终端键盘结构， 其特征在于， 所述凸台结构的 侧壁与按键薄膜所在平面构成的倾斜角度为 20度至 75度。
7、 如权利要求 6所述的终端键盘结构， 其特征在于， 所述凸台结构的 侧壁与按键薄膜所在平面构成的倾斜角度为 45度。
8、 如权利要求 1至 7任一所述所述的终端键盘结构， 其特征在于， 所 述位于所述按键帽下方的硅胶底板和位于所述壳体下方的硅胶底板采用硅 胶油压成型。
9、 如权利要求 1至 7任一所述的终端键盘结构， 其特征在于， 所述硅 胶底板由硅胶与热塑性弹性体橡胶 TPU或者聚碳酸酯 PC或者聚对苯二曱 酸乙二醇酯 PET薄膜模内成型或贴附在一起构成。
10、 一种终端， 其特征在于， 包括权利要求 1至 9中任一所述的终端 键盘结构。
PCT/CN2012/074696 2011-05-06 2012-04-25 一种终端键盘结构及终端 WO2012152187A1 (zh)

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CN103227071B (zh) * 2013-04-28 2015-11-18 梅特勒-托利多(常州)测量技术有限公司 硅胶嵌入式薄膜键盘
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