WO2018014496A1 - 一种防水按键模组 - Google Patents
一种防水按键模组 Download PDFInfo
- Publication number
- WO2018014496A1 WO2018014496A1 PCT/CN2016/110683 CN2016110683W WO2018014496A1 WO 2018014496 A1 WO2018014496 A1 WO 2018014496A1 CN 2016110683 W CN2016110683 W CN 2016110683W WO 2018014496 A1 WO2018014496 A1 WO 2018014496A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pressure sensor
- touch
- touch component
- waterproof
- bottom case
- Prior art date
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1662—Details related to the integrated keyboard
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
- G06F3/0219—Special purpose keyboards
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0227—Cooperation and interconnection of the input arrangement with other functional units of a computer
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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
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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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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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
- H01H13/70—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
- H01H13/705—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 construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
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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
- H01H13/70—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
- H01H13/86—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 characterised by the casing, e.g. sealed casings or casings reducible in size
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/03—Separate key housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/022—Modular assembly
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2233/00—Key modules
- H01H2233/03—Key modules mounted on support plate or frame
Definitions
- the invention belongs to the technical field of touch control, and more particularly, to a waterproof button module based on a pressure sensor.
- the display screen and volume keys of mobile phones are the main control parts of mobile phones, both of which are formed by post-assembly.
- the traditional button module has a gap between the raised button structure and the housing for the action of the button structure, which makes the button module waterproof and dustproof, and can not be applied to some A field of control that requires a high degree of environmental protection.
- buttons usually need to protrude from the housing for operation, thereby affecting the aesthetics of the machine.
- a waterproof button module includes a housing having a hollow inner cavity and an open end, the housing including a front case and a bottom case fixed together, and an open end of the case is disposed And a touch component disposed in the inner cavity of the housing, the touch component including a touch panel extending from an open end of the housing inner cavity; further comprising a pre-tightened state and the touch component a waterproof rubber film separated from the bottom case, the edge of the waterproof rubber film is fixed at a position where the front case and the bottom case are connected, and the touch component is supported on the waterproof rubber film;
- At least one pressure sensor module is disposed between the touch component and the bottom case, and the pressure sensor module is configured to generate a pressure signal indicative of the degree of pressing according to the pressing of the touch component.
- the touch component further includes a flange structure disposed at a lower end edge of the touch panel.
- the touch assembly is captured by the flange structure in a stepped structure disposed at an open end of the housing inner cavity.
- the pressure sensor module includes a circuit board and a pressure sensor electrically connected to the circuit board.
- the pressure sensor module is fixed on the bottom case, and a position of the lower end of the touch component opposite to the pressure sensor is provided with a protruding post for contact engagement with the pressure sensor.
- the waterproof adhesive film covers the lower end surface of the touch component, and the waterproof rubber film forms a convex hull structure matching the shape of the convex pillar at the position of the convex pillar.
- the pressure sensor is provided with two, which are respectively recorded as a first pressure sensor and a second pressure sensor; the first pressure sensor and the second pressure sensor are respectively located at two ends of the touch component.
- a limit post is further disposed between the bottom case and the touch component.
- the limiting post is fixed on the bottom case and extends toward the touch component; or the limiting post is fixed at the lower end of the touch component and extends toward the bottom case.
- a position at which the front case and the rear case are connected is provided with a first sealing ring surrounding the inner cavity.
- a second sealing ring surrounding the open end of the inner cavity is further provided at an end surface of the front case for connecting to the external terminal.
- the touch component is supported on the waterproof adhesive film, so that the waterproof adhesive film can provide elastic force for the resetting of the touch component.
- the edge of the waterproof adhesive film is fixed at a position where the front shell and the bottom shell are connected, and the touch component can be completely separated from the bottom shell by the waterproof adhesive film, even if there is a gap between the touch component and the shell, the water does not pass through.
- the waterproof film enters the bottom case, thereby achieving the waterproof performance of the button module.
- the button module of the invention can be conveniently installed on an external terminal for use, and the performance is superior and reliable.
- FIG. 1 is a schematic structural view of a key module of the present invention.
- the present invention provides a waterproof button module that includes a housing having a hollow interior cavity and a touch assembly that is constrained within the housing cavity.
- the casing includes a front casing 1 and a bottom casing 4 fixed together, and the front casing 1 and the bottom casing 4 may be bolted together, and the two enclose a casing having a hollow inner cavity.
- An opening communicating with the inner cavity of the casing is disposed on the front casing 1 such that the casing forms a semi-enclosed structure with one end open and one end closed.
- the front case 1 and the bottom case 4 of the present invention may be formed by injection molding, or may be formed by machining using a metal member.
- a first seal ring surrounding the inner cavity may be provided at a position where the front case 1 and the rear case 4 are connected.
- the touch assembly of the present invention includes a touchpad 2 extending from the open end of the housing lumen, with reference to FIG.
- the touch panel 2 protrudes from the open end of the housing, so that the user can perform corresponding operations through the touch panel 2, for example, the user can press the upper end and the lower end of the touch panel 2, or slide from one end of the touch panel 2 to the touch panel 2 The other end and so on.
- the touch assembly is confined within the interior of the housing to prevent the touch assembly from falling out of the housing.
- the touch The assembly includes a flange structure 3 disposed at the lower end edge of the touch panel 2, the flange structure 3 mating with a stepped structure provided at the open end of the housing lumen. Such a manner of engaging by the flange and the stepped structure is common knowledge of those skilled in the art and will not be specifically described herein.
- the waterproof button module of the present invention further includes a waterproof rubber film 7 made of a waterproof material well known to those skilled in the art, such as an optional TPU, PU or the like.
- the edge of the waterproof rubber film 7 is fixed at a position where the front case 1 and the bottom case 4 are connected, that is, the edge of the waterproof rubber film 7 is pressed by the front case 1 and the bottom case 4, thereby realizing The fixing of the waterproof film 7 is achieved.
- the waterproof adhesive film 7 is located between the touch component and the bottom case 4, so that the touch component is completely isolated from the bottom case 4 by the waterproof adhesive film 7.
- the touch component of the present invention is partially or completely supported on the waterproof rubber film 7, and after the waterproof rubber film 7 is fixed in the casing, the whole is in a pre-tight state.
- the waterproof adhesive film 7 itself has certain elastic properties. When the user presses the touch component, the touch component will squeeze the waterproof adhesive film 7 at the lower end thereof to deform toward the bottom case 4, and when the external force is removed, the waterproof adhesive film 7 The touch component can be reset by the action.
- At least one pressure sensor module is disposed between the touch component and the bottom case 4, and the pressure sensor module is configured to generate a pressure signal indicative of the degree of pressing according to the pressing of the touch component.
- the pressure sensor module is mounted on the bottom case 4.
- the displacement of the touch component after the waterproof film 7 is pressed may act on the bottom case 4 and the touch component.
- the pressure sensor module is disposed between the pressure sensor module to output a pressure signal indicative of the degree of pressing of the touch component.
- the pressure sensor module comprises a circuit board 6 and a pressure sensor 5 electrically connected to the circuit board 6.
- the circuit board 6 can be an FPCB board, which can be disposed at the upper end of the bottom case 4, and the pressure sensor 5 is connected to the circuit board 6, so that the signal output from the pressure sensor 5 can be transmitted to the control terminal through the circuit board 6.
- the touch component is supported on the waterproof adhesive film, so that the waterproof adhesive film can provide elastic force for the resetting of the touch component.
- the edge of the waterproof adhesive film is fixed at a position where the front shell and the bottom shell are connected, and the touch component can be completely separated from the bottom shell by the waterproof adhesive film, even if there is a gap between the touch component and the shell, the water does not pass through.
- the waterproof film enters the bottom case, thereby realizing Waterproof performance of the button module.
- the button module of the invention can be conveniently installed on an external terminal for use, and the performance is superior and reliable.
- the lower end of the touch component is disposed opposite to the pressure sensor 5 with a protruding post 9 for contact engagement with the pressure sensor 5.
- the raised post 9 and the touch component may be The integrally formed, by the convex column 9 and the pressure sensor 5, the distance of the touch component to the pressure sensor 5 can be greatly shortened.
- the waterproof rubber film 7 can be attached to the bottom case 4, and then the bottom case 4 is mounted on the front case 1, and the waterproof film 7 is pressed, so that the waterproof film 7 is in a tight state.
- the waterproof adhesive film 7 may be covered on the lower end surface of the touch component such that the touch component may be supported on the waterproof adhesive film 7, or the waterproof adhesive film 7 may be adhered to the lower end surface of the touch component.
- the shape of the waterproof adhesive film 7 is matched with the shape of the lower end surface of the touch component, so that the waterproof adhesive film 7 forms a convex hull structure 11 matching the shape of the protruding post 9 at the position of the touch component boss 9 .
- the convex column 9 is wrapped by the convex hull structure 11, thereby achieving the integrity of the waterproof adhesive film 7, and ensuring the waterproof performance of the key module.
- the pressure sensor of the present invention may be provided with one or two or more.
- the pressure sensor is provided with two, respectively referred to as a first pressure sensor and a second.
- a pressure sensor ; the first pressure sensor and the second pressure sensor are respectively distributed at two ends of the touch component.
- both ends herein not only include the two end positions of the touch component, but also should be understood to include two sides of the touch component in the length or width direction, such as upper, lower, left, Right, front, rear, etc.
- the touch assembly moves downward as a whole, and the displacement on the touch assembly near the end of the first pressure sensor is large, away from the first pressure.
- the displacement occurring at one end of the sensor is small, and the entire touch component undergoes a motion similar to "seesaw", which causes the pressure of the touch component to be greater than the pressure of the second pressure sensor, thereby causing the first pressure sensor,
- the second pressure sensor can output different pressure signals, and the position of the force on the touch component can be obtained through subsequent calculations, thereby realizing the judgment of the human body gesture.
- the pressure of the touch component on the first pressure sensor is less than the pressure on the second pressure sensor, and the touch component can be obtained through subsequent calculations.
- the position of the force on the point makes the judgment of the human body gesture.
- the pressure sensor 5 can be provided with one, which is located in the middle position of the touch component, so that the button module can be applied in the field of control switches, for example, can be applied to a single-touch switch illumination lamp, through the function
- the control of the parameters for example, can realize the functional experience of continuous light pressure touch brightness dimming, heavy pressure touch brightness brightening, etc., and improve the performance of the lighting intelligent switch as a whole.
- a limit post 8 can be disposed between the bottom case 4 and the touch assembly.
- the limiting post 8 can be fixed to the bottom case 4 and extend toward the direction of the touch assembly.
- the limiting post 8 can also be arranged on the touch component and extend in the direction of the bottom case 4.
- the limit post 8 can prevent damage to the pressure sensor 4 when the touch assembly is excessively pressed; at this time, the waterproof rubber film 7 needs to be formed at the position of the limit post 8 and the shape of the limit post 8
- the matching convex hull structure surrounds the limiting post 8 to ensure the integrity of the waterproof film 7.
- the button module of the present invention may further be provided with a second sealing ring surrounding the open end of the inner cavity of the casing on the end surface of the front casing 1 for connecting the external terminal, so that the sealing performance of the button module and the external terminal can be achieved. Improve the waterproof and dustproof ability of the button module.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
一种防水按键模组,包括呈预紧状态且将所述触摸组件与底壳(4)隔绝开的防水胶膜(7),所述防水胶膜(7)的边缘固定在前壳(1)与底壳(4)连接的位置,且所述触摸组件支撑在所述防水胶膜(7)上;所述防水胶膜(7)的边缘固定在前壳(1)与底壳(4)连接的位置,通过防水胶膜(7)可将触摸组件与底壳(4)完全隔绝开,即使触摸组件与壳体之间存在间隙,水也不会透过防水胶膜(7)进入到底壳(4)内,由此实现了按键模组的防水性能。
Description
本发明属于触摸控制技术领域,更具体地,本发明涉及一种基于压力传感器的防水按键模组。
随着科技的发展,手机、电脑等电子设备已成为我们生活中必不可少的工具,例如手机的显示屏和音量键是手机的主要控制部分,这二者都是通过后装配的方式形成在壳体上。这种传统的按键模组,其凸起的按键结构与壳体之间必然会留有供按键结构动作的空隙,这就使得该按键模组的防水、防尘性能很差,不能应用到一些对环境要求较高的控制领域。
而且,这些按键通常需要从壳体上突出来,以便进行操作,从而影响了整机的美观。
发明内容
本发明的一个目的是提供了一种防水按键模组。
根据本发明的一个方面,提供一种防水按键模组,包括具有中空内腔且一端开口的壳体,所述壳体包括固定在一起的前壳和底壳,所述壳体的开口端设置在前壳上;还包括限制在所述壳体内腔中的触摸组件,所述触摸组件包括从所述壳体内腔开口端伸出的触摸板;还包括呈预紧状态且将所述触摸组件与底壳隔绝开的防水胶膜,所述防水胶膜的边缘固定在前壳与底壳连接的位置,且,所述触摸组件支撑在所述防水胶膜上;
其中,在所述触摸组件与底壳之间设置有至少一个压力传感器模组,所述压力传感器模组被设置为根据所述触摸组件的按压产生表征按压程度的压力信号。
可选的是,所述触摸组件还包括设置在触摸板下端边缘的凸缘结构,
所述触摸组件通过所述凸缘结构卡在壳体内腔开口端设置的台阶结构中。
可选的是,所述压力传感器模组包括电路板以及与电路板电连接的压力传感器。
可选的是,所述压力传感器模组固定在底壳上,所述触摸组件下端与压力传感器正对的位置设置有用于与所述压力传感器接触配合的凸起柱。
可选的是,所述防水胶膜覆盖在触摸组件的下端面,所述防水胶膜在凸起柱的位置形成与凸起柱形状匹配的凸包结构。
可选的是,所述压力传感器设置有两个,分别记为第一压力传感器、第二压力传感器;所述第一压力传感器、第二压力传感器分别位于触摸组件的两端。
可选的是,在所述底壳与触摸组件之间还设置有限位柱。
可选的是,所述限位柱固定在底壳上,并朝向触摸组件的方向延伸;或者是,所述限位柱固定在触摸组件的下端,并朝向底壳的方向延伸。
可选的是,所述前壳与后壳连接的位置设置有环绕所述内腔的第一密封圈。
可选的是,在所述前壳的端面上用于与外部终端连接的位置还设有环绕所述内腔开口端的第二密封圈。
本发明的按键模组,触摸组件支撑在防水胶膜上,使得该防水胶膜可为触摸组件的复位提供弹性力。所述防水胶膜的边缘固定在前壳与底壳连接的位置,通过防水胶膜可将触摸组件与底壳完全隔绝开,即使触摸组件与壳体之间存在间隙,水也不会透过防水胶膜进入到底壳内,由此实现了按键模组的防水性能。本发明的按键模组,可以很便捷地安装到外部终端上进行使用,而且性能优越可靠。
通过以下参照附图对本发明的示例性实施例的详细描述,本发明的其它特征及其优点将会变得清楚。
构成说明书的一部分的附图描述了本发明的实施例,并且连同说明书一起用于解释本发明的原理。
图1是本发明按键模组的结构示意图。
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术和设备可能不作详细讨论,但在适当情况下,所述技术和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中,任何具体值应被解释为仅仅是示例性的,而不是作为限制。因此,示例性实施例的其它例子可以具有不同的值。
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步讨论。
参考图1,本发明提供了一种防水按键模组,其包括具有中空内腔的壳体,以及限制在所述壳体内腔中的触摸组件。所述壳体包括固定在一起的前壳1、底壳4,前壳1与底壳4可采用螺栓固定在一起,二者围成了具有中空内腔的壳体。其中在所述前壳1上设置有与壳体内腔连通的开口,使得所述壳体形成了一端开口、一端封闭的半包围结构。本发明的前壳1、底壳4可以通过注塑的方式形成,也可以采用金属件并通过机加工的方式形成。为了提高前壳1与底壳4之间的密封性,在所述前壳1与后壳4连接的位置可设置有环绕所述内腔的第一密封圈。
本发明的触摸组件包括从所述壳体内腔开口端伸出的触摸板2,参考图1。所述触摸板2从壳体的开口端伸出,使得用户可通过触摸板2进行相应的操作,例如用户可按压触摸板2的上端、下端,或者从触摸板2的一端滑动至触摸板2的另一端等等。触摸组件被限制在壳体的内腔中,以防止触摸组件从壳体中脱落。在本发明一个具体的实施方式中,所述触摸
组件包括设置在触摸板2下端边缘的凸缘结构3,所述凸缘结构3与壳体内腔开口端设置的台阶结构配合在一起。这种通过凸缘、台阶结构进行卡合的方式属于本领域技术人员的公知常识,在此不再具体说明。
本发明的防水按键模组,还包括防水胶膜7,所述防水胶膜7采用本领域技术人员所熟知的防水材料制成,例如可选优TPU、PU等材料。所述防水胶膜7的边缘固定在前壳1与底壳4连接的位置,也就是说,所述防水胶膜7的边缘被前壳1、底壳4相接触的地方压住,从而实现了防水胶膜7的固定。所述防水胶膜7位于触摸组件与底壳4之间,从而通过该防水胶膜7将触摸组件与底壳4完全隔绝开。
本发明的触摸组件部分地或者完全支撑在该防水胶膜7上,且该防水胶膜7固定在壳体中后,其整体呈预紧状态。该防水胶膜7本身具有一定的弹性性能,当用户按压触摸组件时,触摸组件会挤压其下端的防水胶膜7朝底壳4的方向发生变形,当外力撤销后,在防水胶膜7的作用下使所述触摸组件可以复位。
本发明的按键模组,在所述触摸组件与底壳4之间设置有至少一个压力传感器模组,所述压力传感器模组被设置为根据所述触摸组件的按压产生表征按压程度的压力信号。
在本发明一个具体的实施方式中,压力传感器模组安装在底壳4上,当按压触摸组件时,触摸组件挤压防水胶膜7后所发生的位移会作用在位于底壳4与触摸组件之间的压力传感器模组上,从而通过压力传感器模组输出表征触摸组件按压程度的压力信号。在本发明一个优选的实施方式中,所述压力传感器模组包括电路板6以及与电路板6电连接的压力传感器5。所述电路板6可以采用FPCB板,其可以设置在底壳4的上端,压力传感器5与电路板6连接在一起,使得压力传感器5输出的信号可以通过电路板6传输至控制端。
本发明的按键模组,触摸组件支撑在防水胶膜上,使得该防水胶膜可为触摸组件的复位提供弹性力。所述防水胶膜的边缘固定在前壳与底壳连接的位置,通过防水胶膜可将触摸组件与底壳完全隔绝开,即使触摸组件与壳体之间存在间隙,水也不会透过防水胶膜进入到底壳内,由此实现了
按键模组的防水性能。本发明的按键模组,可以很便捷地安装到外部终端上进行使用,而且性能优越可靠。
在本发明一个优选的实施方式中,所述触摸组件下端与压力传感器5正对的位置设置有用于与所述压力传感器5接触配合的凸起柱9,该凸起柱9与触摸组件可以是一体成型的,通过该凸起柱9与压力传感器5配合在一起,可大大缩短触摸组件至压力传感器5的距离。
在安装的时候,可以将防水胶膜7贴附在底壳4上,然后将底壳4安装在前壳1上,并将防水胶膜7压紧,使得该防水胶膜7处于绷紧状态。防水胶膜7可以覆盖在触摸组件的下端面,使得所述触摸组件可以支撑在防水胶膜7上,也可以可采用胶将防水胶膜7粘结在触摸组件的下端面。所述防水胶膜7的形状与触摸组件下端面的形状相匹配,使得所述防水胶膜7在触摸组件凸起柱9的位置形成与所述凸起柱9形状匹配的凸包结构11,通过该凸包结构11将凸起柱9包裹起来,从而实现了防水胶膜7的完整性,保证了按键模组的防水性能。
本发明的压力传感器可以设置有一个,还可以设置有两个或更多个,在本发明一个具体的实施方式中,所述压力传感器设置有两个,分别记为第一压力传感器、第二压力传感器;所述第一压力传感器、第二压力传感器分别分布在触摸组件的两端。在此需要注意的是,此处的“两端”不仅包含触摸组件的两个端头位置,还应该理解为包括触摸组件在长度或宽度方向上的两方,例如上方、下方、左方、右方、前方、后方等。
参考图1的视图方向,例如当触摸板上靠近第一压力传感器的位置受力时,触摸组件整体向下运动,并且触摸组件上靠近第一压力传感器一端发生的位移较大,远离第一压力传感器一端所发生的位移较小,整个触摸组件发生类似“跷跷板”式的运动,这就使得触摸组件对第一压力传感器的压力大于其对第二压力传感器的压力,从而使第一压力传感器、第二压力传感器可以输出不同的压力信号,通过后续计算可以得到触摸组件上的受力位置点,从而实现了人体手势的判断。基于相同的道理,当触摸板上靠近第二压力传感器的位置受力时,这就使得触摸组件对第一压力传感器的压力小于其对第二压力传感器的压力,通过后续计算可以得到触摸组件
上的受力位置点,实现了人体手势的判断。
本发明的按键模组,压力传感器5可以设置有一个,其位于触摸组件的中部位置,使得该按键模组可应用在控制开关领域,例如可应用到单点触开关照明灯中,通过对功能参数的控制,例如可实现持续轻压触摸亮度变暗,重压触摸亮度变亮等功能体验,从整体方面提高了照明智能开关的性能。
本发明的按键模组,在所述底壳4与触摸组件之间还可设置有限位柱8。该限位柱8可以固定在底壳4上,并朝向触摸组件的方向延伸。当然,所述限位柱8也可以设置在触摸组件上,并朝向底壳4的方向延伸。通过该限位柱8可以防止过度按压触摸组件时对压力传感器4所带来的损伤;此时,所述防水胶膜7需要在该限位柱8的位置形成与所述限位柱8形状相配的凸包结构,从而将该限位柱8包裹起来,以保证防水胶膜7的完整性。
本发明的按键模组,在所述前壳1用于连接外部终端的端面上还可以设置有环绕所述壳体内腔开口端的第二密封圈,从而可以实现按键模组与外部终端的密封性能,提高了按键模组的防水、防尘能力。
虽然已经通过示例对本发明的一些特定实施例进行了详细说明,但是本领域的技术人员应该理解,以上示例仅是为了进行说明,而不是为了限制本发明的范围。本领域的技术人员应该理解,可在不脱离本发明的范围和精神的情况下,对以上实施例进行修改。本发明的范围由所附权利要求来限定。
Claims (10)
- 一种防水按键模组,其特征在于:包括具有中空内腔且一端开口的壳体,所述壳体包括固定在一起的前壳(1)和底壳(4),所述壳体的开口端设置在前壳(1)上;还包括限制在所述壳体内腔中的触摸组件,所述触摸组件包括从所述壳体内腔开口端伸出的触摸板(2);还包括呈预紧状态且将所述触摸组件与底壳(4)隔绝开的防水胶膜(7),所述防水胶膜(7)的边缘固定在前壳(1)与底壳(4)连接的位置,且,所述触摸组件支撑在所述防水胶膜(7)上;其中,在所述触摸组件与底壳(4)之间设置有至少一个压力传感器模组,所述压力传感器模组被设置为根据所述触摸组件的按压产生表征按压程度的压力信号。
- 根据权利要求1所述的按键模组,其特征在于:所述触摸组件还包括设置在触摸板(2)下端边缘的凸缘结构(3),所述触摸组件通过所述凸缘结构(3)卡在壳体内腔开口端设置的台阶结构中。
- 根据权利要求1所述的按键模组,其特征在于:所述压力传感器模组包括电路板(6)以及与电路板(6)电连接的压力传感器(5)。
- 根据权利要求3所述的按键模组,其特征在于:所述压力传感器模组固定在底壳(4)上,所述触摸组件下端与压力传感器(5)正对的位置设置有用于与所述压力传感器(5)接触配合的凸起柱(9)。
- 根据权利要求4所述的按键模组,其特征在于:所述防水胶膜(7)覆盖在触摸组件的下端面,所述防水胶膜(7)在凸起柱(9)的位置形成与凸起柱(9)形状匹配的凸包结构(11)。
- 根据权利要求5所述的按键模组,其特征在于:所述压力传感器(5)设置有两个,分别记为第一压力传感器、第二压力传感器;所述第一压力传感器、第二压力传感器分别位于触摸组件的两端。
- 根据权利要求1所述的按键模组,其特征在于:在所述底壳(4) 与触摸组件之间还设置有限位柱(8)。
- 根据权利要求7所述的按键模组,其特征在于:所述限位柱(8)固定在底壳(4)上,并朝向触摸组件的方向延伸;或者是,所述限位柱(8)固定在触摸组件的下端,并朝向底壳(4)的方向延伸。
- 根据权利要求1所述的按键模组,其特征在于:所述前壳(1)与后壳(4)连接的位置设置有环绕所述内腔的第一密封圈。
- 根据权利要求1所述的按键模组,其特征在于:在所述前壳(1)的端面上用于与外部终端连接的位置还设有环绕所述内腔开口端的第二密封圈(10)。
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