WO2016062124A1 - 导光件、按键装置及操作面板 - Google Patents

导光件、按键装置及操作面板 Download PDF

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Publication number
WO2016062124A1
WO2016062124A1 PCT/CN2015/083698 CN2015083698W WO2016062124A1 WO 2016062124 A1 WO2016062124 A1 WO 2016062124A1 CN 2015083698 W CN2015083698 W CN 2015083698W WO 2016062124 A1 WO2016062124 A1 WO 2016062124A1
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WO
WIPO (PCT)
Prior art keywords
light
introduction
light guide
conductive arm
introduction portion
Prior art date
Application number
PCT/CN2015/083698
Other languages
English (en)
French (fr)
Inventor
肖武
Original Assignee
深圳拓邦股份有限公司
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 深圳拓邦股份有限公司 filed Critical 深圳拓邦股份有限公司
Publication of WO2016062124A1 publication Critical patent/WO2016062124A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • H01H13/83Switches 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 legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00Point-like light sources

Definitions

  • the present invention relates to the field of light processing technologies, and in particular, to a light guide, a button device, and an operation panel.
  • the light source is generally integrated in the middle of the gate, so that uniform illumination can be realized, but the disadvantage is that the light indication is single, the structure is complicated, and the manufacturing cost is high.
  • the light source is disposed at the bottom of the center of the light guide ring, and the light guide ring is divided into two parts.
  • the button and the light guide ring are fixedly connected and can be activated and triggered.
  • This structure requires a large space, complicated assembly, and is not suitable for space.
  • Compact equipment In other equipment, there are also two or more points of light source dispersed in the outer periphery of the wall of the light guide ring, so that the human eye can directly see the light-emitting point through the surface of the light guide ring.
  • a technical problem to be solved by the present invention is to provide a light guiding member capable of changing the conduction path of light rays a plurality of times so that the light of the light source is uniformly emitted.
  • Another technical problem to be solved by the present invention is to provide a button device and an operation panel.
  • the light guide member can uniformly emit light, which is beautiful and easy to operate.
  • the technical solution adopted by the present invention to solve one of the technical problems is: providing a light guiding member, comprising: a light incident portion that receives light of a light source, a light conducting portion that conducts the light, and uniformizing the light
  • the light exiting portion is an annular cylinder, the light incident portion is located at a periphery of the light exit portion, and the light conducting portion includes a direction from a bottom of the light exit portion toward a central axis away from the light exit portion.
  • a first introduction portion and a second introduction portion extending, and a first conductive arm and a second conductive arm;
  • one ends of the first conductive arm and the second conductive arm are respectively connected to two sides of the light incident portion, and the other ends are respectively connected with the first introduction portion and the second introduction portion, so that the entrance is
  • the light that is described in the light portion is transmitted to the light exit portion via the light conducting portion, and is emitted from the top of the light exit portion.
  • a bottom surface of the light incident portion forms a light incident surface opposite to the light source and receives the light of the light source.
  • the light incident surface is a planar or concave curved surface; or, the light incident surface is provided with a groove opposite to the light source for collecting light.
  • a top surface of the light incident portion opposite to the light incident surface is provided with a V-shaped groove, and opposite wall surfaces of the V-shaped groove respectively form a reflective slope, the first conductive arm and the first One end of the two conductive arms is respectively connected to the two reflective slopes;
  • the angle ⁇ between the two reflective ramps is less than 94°.
  • the first conductive arm and the second conductive arm are respectively provided with a circular arc transition surface that is in contact with the reflective slope.
  • the first introduction portion and the second introduction portion are a plate-like structure perpendicular to the light-emitting portion; the width of the first introduction portion is away from the one end of the light-emitting portion One end of the portion gradually decreases; the width of the second introduction portion gradually decreases from an end connecting the light exit portion to an end away from the light exit portion;
  • the first conductive arm and the second conductive arm are arcuate arms that are outwardly curved with respect to a central axis of the light exiting portion.
  • a top end surface of the light exit portion is provided with a light exit slope inclined toward a central axis and a bottom direction of the light exit portion; and/or a bottom end surface of the light exit portion is provided to the light exit portion a circular reflective bevel inclined at an axis and a top direction;
  • the angle ⁇ between the reflective slope and the plane of the first introduction portion and the second introduction portion is less than 45°.
  • the light-emitting slant surface is provided with a embossed structure formed by a embossing process;
  • a tread structure formed by the tanning process or a polished surface formed by a buffing process is provided.
  • one end of the first conductive arm is in contact with an end surface of the first lead-in portion away from the light-emitting portion, and one end of the second conductive arm is away from the second lead-in portion One end side of the light exiting portion is connected;
  • one end of the first introduction portion away from the light exit portion and one end of the second introduction portion away from the light exit portion are respectively provided with a light reflecting portion, and the light reflecting portion is opposite to the light exit portion;
  • the light reflecting portion is a curved surface or a flat surface.
  • the light-conducting portion further includes a third introduction portion, wherein one end of the third introduction portion is located between the first introduction portion and the second introduction portion to connect the light-emitting portion, and the other end is located at the The light incident portion is connected between the first conductive arm and the second conductive arm.
  • an angle ⁇ between the center of the first introduction portion and the center of the third introduction portion is 95-14
  • an angle ot between the center of the second introduction portion and the center of the third introduction portion is 95-140°.
  • the third introduction portion is a plate-like structure perpendicular to the light-emitting portion; the width of the third introduction portion gradually increases from an end connecting the light-emitting portion to an end connecting the light-receiving portion Reduced.
  • the light guiding member further includes a fixing portion, and the fixing portion is disposed at a bottom of the light emitting portion; [0025] the fixing portion includes at least one elastic buckle.
  • the technical solution adopted by the present invention to solve another technical problem is: providing a button device, including a circuit board, a touch switch, an elastic button, a light source, and the light guide according to any one of the above,
  • the touch switch and the light source are both disposed on the circuit board and electrically connected to the circuit board, the elastic button is sleeved on the touch switch, and the light guide is disposed on the circuit board;
  • the light exit portion of the light guide member is sleeved on the outer circumference of the elastic button, and the light incident portion of the light guide member corresponds to the light source.
  • the present invention also provides an operation panel, including a panel and the above-mentioned button device, wherein the button device is disposed inside the panel, and the panel is provided with a through hole corresponding to the light exit portion of the light guide member in the button device. The light exit portion of the light guide is fitted in the through hole to expose the panel.
  • the light from the light source receives the light of the light source, and the light is transmitted to the light exit portion through the light conducting portion, and the light can change the conductive path multiple times in the light conducting portion, so that the light can be emitted from the bottom of the light emitting portion.
  • the plurality of directions enter into the plurality of directions, and are uniformly diffused from the top of the light-emitting portion to form uniform and soft light, and the light loss is small.
  • the light guide of the present invention can be widely applied to a button device and a control panel of a home appliance and an industrial device, and has a small space requirement, and the light guide member can uniformly emit light on the panel, which is beautiful and easy to operate.
  • FIG. 1 is a schematic structural view of a light guiding member according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the bottom structure of the light guiding member shown in FIG. 1;
  • FIG. 3 is a schematic view showing a conduction path of light rays in the light guide member shown in FIG. 1;
  • FIG. 4 is a cross-sectional view of the light guide member of FIG. 3 taken along line A-A; [0034] FIG.
  • Figure 5 is a cross-sectional view of the light guide member of Figure 3 taken along line B-B;
  • FIG. 6 is a schematic exploded view of a manipulation panel according to an embodiment of the present invention.
  • the light guide member includes a light incident portion 1 that receives light of a light source, a light conducting portion 2 that conducts light, and a light exit portion 3 that uniformly emits light.
  • the light exit portion 3 is an annular cylinder, the light incident portion 1 is located at the periphery of the light exit portion 3, and the light guide portion 2 is connected between the light incident portion 1 and the bottom portion of the light exit portion 3, so that the light entering the light incident portion 1 passes through the light guide portion 2. It is conducted to the light exit portion 3 and is emitted from the top of the light exit portion 3.
  • the light-conducting portion 2 includes a first introduction portion 21, a second introduction portion 22, a first conduction arm 23, and a second conduction arm 24; the first introduction portion 21 and the second introduction portion 22 respectively output the light-emitting portion 3
  • the bottom portion extends away from the central axis of the light exit portion 3, and one ends of the first conductive arm 23 and the second conductive arm 24 are respectively connected to both sides of the light incident portion 1, and the other ends are respectively connected to the first introduction portion 21 and the second portion.
  • the lead-in portion 22 is connected, and the light is split into two paths from the first conductive arm 23 to the first lead-in portion 21, and from the second conductive arm 24 to the second lead-in portion 22, and then from the light-emitting portion. 3 the bottom side enters into it, and the light is along the light exiting portion 3 The axial reflection is to the top of the light exit portion 3.
  • the light incident portion 1 may be a polygonal block structure.
  • the light incident surface 11 of the light incident portion 1 is opposite to the light source and receives light from the light source. After entering the light incident portion 1 from the light incident surface 11, the light enters the first conductive arm 23 and the second through the light incident portion 1 .
  • the light-incident surface 11 is a flat or concave curved surface, and the curved surface has a function of collecting light; or, as shown in FIG. 2, in the embodiment, the light-incident surface 11 is provided with a groove 12, and the groove 12 has The concentrating collimator can also position the light incident portion 1 above the light source and opposite the light source to better receive the light of the light source.
  • a V-shaped groove 13 may be disposed on the top surface of the light-incident portion 1 opposite to the light-incident surface 11, and the opposite wall surfaces of the V-shaped groove respectively form a reflective slope 131.
  • One ends of the conductive arm 23 and the second conductive arm 24 are respectively connected to the two reflective slopes 131.
  • the V-shaped groove 13 is disposed such that light enters the light-injecting portion 1 from the light-incident surface 11 and then faces the top surface, and the light is reflected by the reflective inclined surface 131 into the first conductive arm 23 and the second conductive arm 24, and the light is reflected.
  • the conduction path is shown by the arrow path in FIG.
  • the angle ⁇ between the two reflective slopes 131 of the V-shaped groove 13 is less than 94°, and the angle is set to avoid the angle being too large to cause the light to be refracted from the reflective slope 131, thereby causing light. loss.
  • the light entering the light entering portion 1 is reflected by the reflective slope 131 into the first conductive arm 23 and the second conductive arm 24.
  • Arcuate transition surfaces 231, 241 that are in contact with the reflective ramp 131 may also be provided on the first conductive arm 23 and the second conductive arm 24, respectively.
  • the arc transition faces 231, 241 are located on the upper surfaces of the first conductive arm 23 and the second conductive arm 24, respectively, to prevent light from being refracted, resulting in optical loss.
  • the first conductive arm 23 and the second conductive arm 24 may be arcuate arms that are outwardly curved with respect to the central axis of the light exiting portion 3, such that the sides of the first conductive arm 23 and the second conductive arm 24 are curved, which may be larger. The angle reflects the light.
  • the first introduction portion 21 and the second introduction portion 22 may have a plate-like structure perpendicular to the light exit portion 3.
  • the width of the first introduction portion 21 gradually decreases from one end of the light-emitting portion 3 to the end portion away from the light-emitting portion 3; the width of the second introduction portion 22 gradually decreases from one end of the light-emitting portion 3 to the end portion away from the light-emitting portion 3, Therefore, the first introduction portion 21 and the second introduction portion 22 can be substantially triangular.
  • One end of the first conductive arm 23 is in contact with one end of the first lead-in portion 21 away from the light-emitting portion 3, and one end of the second conductive arm 24 is connected to one end of the second lead-in portion 22 away from the light-emitting portion 3, and the first conductive arm 23 is
  • the light rays enter the first introduction portion 21 from the side surface thereof in contact with the first introduction portion 21, and are reflected from the first conduction portion 21 into the light exit portion 3;
  • the light in the second conduction arm 24 is from the second introduction portion 22 the side of the contact enters the second introduction portion 22, and then the second conductive portion 22
  • the light entering the light exiting portion 3, the conductive path of the light reflection is shown by the arrow path in Figs.
  • the first introduction portion 21 and the second introduction portion 22 may be symmetrically located on both sides of the light exit portion 3, and the first conductive arm 23 and the second conductive arm 24 may be symmetrically located at the light entrance portion 1. On both sides.
  • the two ends of the first introduction portion 21 and the second introduction portion 22 connected to the light-emitting portion 3 can extend along the circumference of the light-emitting portion 3, respectively, so that the ends of the first introduction portion 21 and the second introduction portion 22 can be joined to each other. After the light is conducted therein, the light enters the light exit portion 3 from various directions around the light exit portion 3.
  • first conductive arm 23 is in contact with one end side of the first introduction portion 21 away from the light exit portion 3, and one end of the second conductive arm 24 is in contact with one end side surface of the second introduction portion 22 away from the light exit portion 3.
  • the one end of the first introduction portion 21 away from the light exit portion 3 and the end portion of the second introduction portion 22 away from the light exit portion 3 are respectively provided with the light reflecting portions 211 and 221, and the light reflecting portions 211 and 221 are opposed to the light exit portion 3, and can be reflected thereon.
  • the light is directly reflected into the light exit portion 3.
  • the reflecting portions 211, 221 may be curved or flat; the curved surface is preferably a concave arcuate surface.
  • the light reflecting portions 211 and 221 are respectively located on the side faces of the first introduction portion 21 and the second introduction portion 22 opposite to the light exit portion 3.
  • the light-conducting portion 2 further includes a third introduction portion 25, and the third introduction portion 25 is located in the light-input portion 1, the first conductive arm 23, the first introduction portion 21, and the light-emitting portion. 3.
  • the second introduction portion 22 and the second conduction arm 24 are sequentially connected in the enclosed space.
  • the third introduction portion 25-end is located between the first introduction portion 21 and the second introduction portion 22 to connect the light-emitting portion 3, and the other end is located between the first conductive arm 23 and the second conductive arm 24 and connected thereto.
  • the light portion 1 allows a portion of the light entering the light incident portion 1 to be directly conducted through the third introduction portion 25 into the light exit portion 3.
  • the third introduction portion 25 may have a plate-like structure perpendicular to the light-emitting portion 3, and the width of the third introduction portion 25 gradually decreases from one end to which the light-emitting portion 3 is connected to one end to which the light-receiving portion 1 is connected.
  • the third introduction portion 25, the first introduction portion 21, and the second introduction portion 22 respectively extend from the bottom of the light exit portion 3 in three directions away from the central axis of the light exit portion 3, so that the light can be self-extracted.
  • the three directions of 3 enter into it, and the conduction path of the light reflection is as shown by the arrow path in FIG.
  • the angle ⁇ between the center of the first introduction portion 21 and the center of the third introduction portion 25 is 95-140°; the center of the second introduction portion 22 and the third introduction The angle ⁇ between the centers of the portions 25 is 95-140.
  • One end of the third introduction portion 25 is directly connected to the light incident portion 1 such that the center of the third introduction portion 25 overlaps with the center of the light incident portion 1, so that the center of the first introduction portion 21 and the center of the third introduction portion 25
  • the angle ⁇ between the two is also the angle between the center of the first introduction portion 21 and the center of the light entrance portion 1, and the second introduction portion 22 is similar.
  • the light exit portion 3 includes opposite top and bottom surfaces, and inner and outer sides connecting the top and bottom surfaces;
  • the upper surfaces of the introduction portion 21 and the second introduction portion 22 are connected to the outer surface of the light exit portion 3, and the lower surfaces of the first introduction portion 21 and the second introduction portion 22 are connected to the bottom surface of the light exit portion 3.
  • the bottom end surface (bottom surface) of the light exit portion 3 is provided with an annular reflective slope 31 that is inclined toward the central axis and the top direction of the light exit portion 3, and the first conductive portion 21 and the second portion
  • the light reflected by the side opposite to the light exit portion 3 of the conductive portion 22 is reflected by the reflective slope 31 in the light exit portion 3, and partially directly incident on the top surface of the light exit portion 3 (as indicated by the arrow line in FIG. 5).
  • the outer surface and the inner side of the light exit portion 3 are reflected to the top surface, and part of the light may be refracted from the outer side surface and/or the inner side surface.
  • the angle ⁇ between the reflective slope 31 and the plane of the light-conducting portion 2 (or the first introduction portion 21 and the second introduction portion 22) is less than 45° to ensure that the reflective slope 31 can reflect most of the light to the light exit portion 3.
  • the reflective bevel 31 may be provided with a embossed structure formed by a embossing process or a polished surface formed by a buffing process; the embossed structure enhances the diffuse reflection of light, and further improves the uniformity of light transmission at the top of the light exiting portion 3.
  • the position of the reflective slope 31 near the light entrance portion 1 may also be provided with a recess 33 which reduces the influence of excessive light at the position near the light incident portion 1 (also close to the light source).
  • the top surface of the light exiting portion 3 refracts the light directly reflected by the reflective slope 31 and the light reflected from the outer side surface or the inner side surface.
  • the top end surface (top surface) of the light exit portion 3 may be provided with an annular light exit slope 32 which is inclined toward the central axis and the bottom direction of the light exit portion 3.
  • the light-inclined surface 32 can be provided with a tactile structure formed by the embossing process to enhance the diffuse reflection of light.
  • the light guide further includes a fixable portion 4, and the fixed portion 4 is disposed at the bottom of the light exit portion 3 for mounting and fixing the light guide.
  • the fixing portion 4 may include at least one elastic buckle 41.
  • the light guiding member can be integrally molded by injection molding, and is simple to manufacture.
  • the light guiding member may be made of a transparent material such as glass, transparent plastic, transparent resin or the like.
  • a part or all of the upper and lower surfaces and side surfaces of each of the structures of the light-conducting portion 2 and a light-shielding layer may be provided on the bottom surface of the light-emitting portion 3.
  • the light shielding layer may be formed by coating with an opaque ink or black lacquer.
  • the light guide of the present invention conducts light from the light incident portion 1 through the light-conducting portion 2, so that the light is reflected from the bottom of the light-emitting portion 3, and is diffused through the top of the light-emitting portion 3 to form a uniform Soft light.
  • the effective reflection areas of the reflective ramps 131, 31, the arc transition surfaces 231, 241, and the light reflecting portions 211, 221 can be appropriately increased.
  • the reflective slopes 131, 31, the arc transition surfaces 231, 241, and the reflecting portion can also be used.
  • a light shielding layer (not shown) is disposed on one or more of 211 and 221 .
  • the light shielding layer may be formed by coating with an opaque ink or black lacquer.
  • an operation panel includes a panel 10 and a button device, and the button device is disposed inside the panel 10.
  • the button device includes a circuit board 20, a touch switch 30, a flexible button 40, a light source 50, and the light guide member in the embodiment shown in FIGS. 1-5; the touch switch 30 and the light source 50 are both disposed on the circuit board 20.
  • the elastic button 40 is sleeved on the touch switch 30, so that the lock 30 can be pressed and pressed by pressing the elastic button 40.
  • a light source 202 is also disposed on the circuit board 20 on at least one side of the touch switch 30, and the flexible button 40 is illuminated by the light source 202.
  • the elastic button 40 can be made of a silicone material; the upper surface of the elastic button 40 can be provided with various letters, figures, and the like as needed; the upper surface can be completely transparent or partially transparent.
  • the light guide member is disposed on the circuit board 20; with reference to FIGS. 1-6, the light exit portion 3 of the light guide member is sleeved on the outer periphery of the elastic button 40, and the light incident portion 1 of the light guide member corresponds to the light source 50, thereby The light guide takes up little space.
  • the circuit board 20 is provided with a mounting portion 201.
  • the mounting portion 201 is located around the touch switch 30, and the light guide member is fixed to the circuit board 20 by the fixing portion 4 of the bottom portion and the mounting portion 201.
  • the mounting portion 20 1 includes at least one mounting hole, and the elastic snap 41 of the light guide member can be fastened to the circuit board 20 through the mounting hole.
  • the light source 50 is located on the side of the periphery of the touch switch 30 and the elastic button 40, and the light guide member is mounted on the elastic button 40 by aligning the light source 50 with the light incident portion 1.
  • the bottom of the bottom of the elastic button 40 may be provided with a positioning protrusion 401, and the positioning protrusion 401 may be disposed corresponding to the groove 33 on the reflective slope 31 of the light-emitting portion 3, and the positioning protrusion 401 may be fitted in the groove 33 (eg Figure 2) inside.
  • the positioning protrusion 401 is correspondingly embedded in the groove 33.
  • the positioning protrusion 401 and the groove 33 are matched to each other, and the elastic button 40 can be limited, and the elastic button is
  • the light guide member 40 and the light guide member are relatively fixed to prevent the elastic button 40 from rotating in the circumferential direction in the light exit portion 3.
  • the light source 50 can be distinguished by different colors of LED lights; or a color-changing LE D lamp, the color displayed by the LED light indicates different working states; or multiple different color LED lights are used.
  • the corresponding working state is indicated by the LED light of the corresponding color.
  • the light source 50 can also indicate the working state by using different lighting modes such as constantly lit or blinking.
  • the light exit portion 3 of the light guide member is provided with a through hole 101, and the light exit portion 3 of the light guide member is fitted in the through hole 101 to expose the panel 10; the elastic button 40 also exposes the panel 10 in the light exit portion 3, For pressing.
  • Light source 50 ⁇ The light is transmitted to the light exit portion 3 through the light incident portion 1 and the light guide portion 2, and is evenly diffused at the top of the light exit portion 3, forming an aperture that emits light on the outer periphery of the elastic button 40, and can be different according to the color of the light emitted by the light source 50.
  • Working status is provided with a through hole 101, and the light exit portion 3 of the light guide member is fitted in the through hole 101 to expose the panel 10; the elastic button 40 also exposes the panel 10 in the light exit portion 3, For pressing.
  • Light source 50 ⁇ The light is transmitted to the light exit portion 3 through the light incident portion 1 and the light guide portion 2, and is evenly diffused at the top of the light exit portion 3, forming an aperture that emits light on

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Push-Button Switches (AREA)

Abstract

一种导光件、按键装置及操作面板,导光件包括入光部(1)、光传导部(2)以及出光部(3);出光部(3)为环状柱体,入光部(1)位于出光部(3)外围,光传导部(2)包括第一导入部(21)和第二导入部(22)、以及第一传导臂(23)和第二传导臂(24);第一传导臂(23)和第二传导臂(24)的一端分别连接在入光部(1)的两侧,另一端分别与第一光导入部(21)和第二光导入部(22)连接。该导光件使得光线在光传导部(2)内能够多次改变传导路径,并从出光部(3)顶部均匀漫射出来,形成均匀柔和的光线。

Description

导光件、 按键装置及操作面板
技术领域
[0001] 本发明涉及光线处理技术领域, 尤其涉及一种导光件、 按键装置及操作面板。
背景技术
[0002] 随着现代科技的发展, 各式家电和工业产品不断推陈出新, 对外观和人机交互 的要求也越来越高, 人机交互界面的设计和功能越来越多样化, 显示组合越来 越多。 目前, 大多数的家用电器, 均有电源按钮幵关, 用于幵 /关家用电器的电 源, 部分电源按钮幵关采用发光来区别不同的幵关状态, 如普遍使用的环形发 光按钮装置。
[0003] 现有的按钮装置中, 一般把光源集成在中间的幵关中, 这样可以实现均匀发光 , 但缺点是光线指示单一, 结构复杂, 制造成本高。 还有的设备中, 将光源设 置在导光环中心底部, 导光环分成两件, 按钮和一导光环固定连接并可活动触 发幵关, 这种结构需求空间比较大, 装配复杂, 不适用于空间紧凑的设备。 还 有的设备中, 也有采用两点或两点以上的光源分散在导光环壁面外周直接照射 的方式, 使人眼可透过导光环表面直接看到发光点, 然而该种方式使得光线的 分布不够均匀, 一些发光点会影响设备表面外观效果及美感, 并直接刺激人眼 ; 如果设备外观要求按钮均匀发光, 则对这种方式发光的按钮只有采用增加发 光点的方法来解决, 既浪费材料, 又增加配置, 降低生产直通性, 造成成本提 高。
技术问题
[0004] 本发明要解决的一技术问题在于, 提供一种能够多次改变光线的传导路径, 使 得光源的光线均匀射出的导光件。
[0005] 本发明要解决的另一技术问题在于, 提供一种按键装置及操作面板, 使用上述 的导光件, 导光件能够均匀发光, 美观且便于操作。
问题的解决方案
技术解决方案 [0006] 本发明解决其一技术问题所采用的技术方案是: 提供一种导光件, 包括接收光 源光线的入光部、 对所述光线进行传导的光传导部、 以及将所述光线均匀射出 的出光部; 所述出光部为环状柱体, 所述入光部位于所述出光部外围, 所述光 传导部包括自所述出光部的底部向远离所述出光部的中轴线方向延伸设置的第 一导入部和第二导入部、 以及第一传导臂和第二传导臂;
[0007] 所述第一传导臂和所述第二传导臂的一端分别连接在所述入光部的两侧, 另一 端分别与所述第一导入部和第二导入部连接, 使得进入所述入光部的光线经由 所述光传导部传导至所述出光部, 并从所述出光部的顶部射出。
[0008] 优选地, 所述入光部的底面形成与所述光源相对、 接收所述光源光线的入光面
[0009] 所述入光面为平面或内凹的弧面; 或者, 所述入光面上设有与所述光源相对以 进行聚光的凹槽。
[0010] 优选地, 与所述入光面相对的所述入光部的顶面设有 V形槽, 所述 V形槽的相 对两壁面分别形成反光斜面, 所述第一传导臂和第二传导臂的一端分别与两所 述反光斜面相接;
[0011] 两所述反光斜面之间的夹角 β小于 94°。
[0012] 优选地, 所述第一传导臂和第二传导臂上还分别设有与所述反光斜面相接的圆 弧过渡面。
[0013] 优选地, 所述第一导入部和第二导入部为相对所述出光部垂直的板状结构; 所 述第一导入部的宽度自连接所述出光部的一端向远离所述出光部的一端逐渐减 小; 所述第二导入部的宽度自连接所述出光部的一端向远离所述出光部的一端 逐渐减小;
[0014] 所述第一传导臂和第二传导臂为相对所述出光部的中轴线向外弯曲的弧形臂。
[0015] 优选地, 所述出光部的顶部端面设有向所述出光部中轴线及底部方向倾斜的出 光斜面; 和 /或, 所述出光部的底部端面的设有向所述出光部中轴线及顶部方向 倾斜的环形反光斜面;
[0016] 所述反光斜面与所述第一导入部和第二导入部所在平面之间的夹角 γ小于 45°。
[0017] 优选地, 所述出光斜面上设有经晒纹处理形成的晒纹结构; 所述反光斜面上设 有经晒纹处理形成的晒纹结构或抛光处理形成的抛光面。
[0018] 优选地, 所述第一传导臂的一端与所述第一导入部远离所述出光部的一端侧面 相接, 所述第二传导臂的一端与所述第二导入部远离所述出光部的一端侧面相 接;
[0019] 所述第一导入部远离所述出光部的一端、 以及所述第二导入部远离所述出光部 的一端分别设有反光部, 且所述反光部与所述出光部相对;
[0020] 所述反光部为弧面或平面。
[0021] 优选地, 所述光传导部还包括第三导入部, 所述第三导入部一端位于所述第一 导入部和第二导入部之间而连接所述出光部, 另一端位于所述第一传导臂和第 二传导臂之间而连接所述入光部。
[0022] 优选地, 所述第一导入部的中心与所述第三导入部的中心之间的夹角 α为 95-14
0°; 所述第二导入部的中心与所述第三导入部的中心之间的夹角 ot为 95-140°。
[0023] 优选地, 所述第三导入部为相对所述出光部垂直的板状结构; 所述第三导入部 的宽度自连接所述出光部的一端向连接所述入光部的一端逐渐减小。
[0024] 优选地, 该导光件还包括固定部, 所述固定部设置在所述出光部的底部; [0025] 所述固定部包括至少一个弹性卡扣。
[0026] 本发明解决其另一技术问题所采用的技术方案是: 提供一种按键装置, 包括电 路板、 触动幵关、 弹性按钮、 光源以及上述任一项所述的导光件, 所述触动幵 关和光源均设置在所述电路板上并与所述电路板电连接, 所述弹性按钮套设在 所述触动幵关上, 所述导光件设置在所述电路板上; 其中, 所述导光件的出光 部套设在所述弹性按钮外周, 所述导光件的入光部对应在所述光源上方。
[0027] 本发明还提供一种操作面板, 包括面板以及上述的按键装置, 所述按键装置设 置在所述面板内侧, 所述面板对应所述按键装置中导光件的出光部设有通孔, 所述导光件的出光部配合在所述通孔中并露出所述面板。
发明的有益效果
有益效果
[0028] 本发明的导光件中, 通过出光部接收光源的光线, 将光线通过光传导部传导至 出光部内, 光线在光传导部内能够多次改变传导路径, 使得光线能从出光部底 部多个方向进入其中, 并从出光部顶部均匀漫射出来, 形成均匀柔和的光线, 光损耗小。
[0029] 本发明导光件可广泛应用于家电和工业等设备的按键装置及操控面板中, 需求 空间小, 导光件能够在面板上均匀发光, 美观且便于操作。
对附图的简要说明
附图说明
[0030] 下面将结合附图及实施例对本发明作进一步说明, 附图中:
[0031] 图 1是本发明一实施例的导光件的结构示意图;
[0032] 图 2是图 1所示导光件的底部结构示意图;
[0033] 图 3是图 1所示导光件中光线的传导路径示意图;
[0034] 图 4是图 3所述导光件沿 A-A线的剖视图;
[0035] 图 5是图 3所述导光件沿 B-B线的剖视图;
[0036] 图 6是本发明一实施例的操控面板的爆炸结构示意图。
本发明的实施方式
[0037] 为了对本发明的技术特征、 目的和效果有更加清楚的理解, 现对照附图详细说 明本发明的具体实施方式。
[0038] 如图 1、 2所示, 本发明一实施例的导光件, 可应用于家电及工业设备等的按键 装置及操作面板中。 该导光件包括接收光源的光线的入光部 1、 对光线进行传导 的光传导部 2、 以及将光线均匀射出的出光部 3。 出光部 3为环状柱体, 入光部 1 位于出光部 3外围, 光传导部 2连接在入光部 1和出光部 3底部之间, 使得进入入 光部 1的光线经由光传导部 2传导至出光部 3, 并从出光部 3的顶部射出。
[0039] 其中, 光传导部 2包括第一导入部 21、 第二导入部 22、 第一传导臂 23以及第二 传导臂 24; 第一导入部 21和第二导入部 22分别自出光部 3的底部向远离出光部 3 的中轴线方向延伸设置, 第一传导臂 23和第二传导臂 24的一端分别连接在入光 部 1的两侧, 另一端分别与第一导入部 21和第二导入部 22连接, 光线在入光部 1 内可分成两路分别从第一传导臂 23传导至第一导入部 21、 以及从第二传导臂 24 传导至第二导入部 22, 再从出光部 3底部两侧进入其中, 光线在出光部 3内沿其 轴向反射至出光部 3顶部。
[0040] 具体地, 入光部 1可为多边形的块状结构。 入光部 1的底面形成与光源相对、 接 收光源光线的入光面 11, 光线从入光面 11进入入光部 1后, 可通过入光部 1两侧 进入第一传导臂 23和第二传导臂 24。 入光面 11为平面或内凹的弧面, 弧面具有 聚光的作用; 或者, 如图 2所示, 在本实施例中, 入光面 11上设有凹槽 12, 凹槽 12具有聚光作用的同吋还可将入光部 1定位在光源上方并与光源相对, 更好接收 光源的光线。
[0041] 如图 1、 2所示, 在入光部 1上, 与入光面 11相对的顶面可设有 V形槽 13, V形槽 的相对两壁面分别形成反光斜面 131, 第一传导臂 23和第二传导臂 24的一端分别 与两反光斜面 131相接。 该 V形槽 13的设置, 使得光线从入光面 11进入入光部 1后 射向顶面吋, 通过反光斜面 131将光线反射到第一传导臂 23和第二传导臂 24中, 光线反射的传导路径如图 4中箭头路线所示。 优选地, 如图 4所示, V形槽 13的两 反光斜面 131之间的夹角 β小于 94°, 该夹角的设置避免夹角过大而导致光线从反 光斜面 131折射出去, 造成光损耗。
[0042] 进入入光部 1内的光线经反光斜面 131的反射进入第一传导臂 23和第二传导臂 24 。 第一传导臂 23和第二传导臂 24上还可分别设有与反光斜面 131相接的圆弧过渡 面 231、 241。 圆弧过渡面 231、 241分别位于第一传导臂 23和第二传导臂 24的上 表面, 防止光线折射出去, 造成光损耗。 。 该第一传导臂 23和第二传导臂 24可 为相对出光部 3的中轴线向外弯曲的弧形臂, 从而第一传导臂 23和第二传导臂 24 的侧面呈弧形, 可更大角度反射光线。
[0043] 在光传导部 2中, 第一导入部 21和第二导入部 22可为相对出光部 3垂直的板状结 构。 第一导入部 21的宽度自连接出光部 3的一端向远离出光部 3的一端逐渐减小 ; 第二导入部 22的宽度自连接出光部 3的一端向远离出光部 3的一端逐渐减小, 从而第一导入部 21和第二导入部 22可大致呈三角形。 第一传导臂 23的一端与第 一导入部 21远离出光部 3的一端相接, 第二传导臂 24的一端与第二导入部 22远离 出光部 3的一端相接, 第一传导臂 23中的光线从其与第一导入部 21相接的侧面进 入第一导入部 21中, 再从第一传导部 21反射进入出光部 3; 第二传导臂 24中的光 线从其与第二导入部 22相接的侧面进入第二导入部 22中, 再从第二传导部 22反 射进入出光部 3, 光线反射的传导路径如图 3、 4中箭头路线所示。
[0044] 具体地, 第一导入部 21和第二导入部 22可呈对称地位于出光部 3的两侧, 第一 传导臂 23和第二传导臂 24可呈对称地位于入光部 1的两侧。 第一导入部 21和第二 导入部 22连接出光部 3的一端的两侧可分别沿出光部 3的圆周延伸, 从而第一导 入部 21和第二导入部 22的该端可相接合, 以使得光线在其内传导后从出光部 3周 围各个方向进入出光部 3内。 第一传导臂 23的一端与第一导入部 21远离出光部 3 的一端侧面相接, 第二传导臂 24的一端与第二导入部 22远离出光部 3的一端侧面 相接。 第一导入部 21远离出光部 3的一端以及第二导入部 22远离出光部 3的一端 分别设有反光部 211、 221, 且反光部 211、 221与出光部 3相对, 可将反射到其上 的光线直接反射到出光部 3中。 反光部 211、 221可为弧面或平面; 弧面优选内凹 的圆弧面。 具体地, 反光部 211、 221分别位于第一导入部 21和第二导入部 22的 与出光部 3相对的侧面上。
[0045] 进一步地, 在本实施例中, 光传导部 2还包括第三导入部 25, 该第三导入部 25 位于入光部 1、 第一传导臂 23、 第一导入部 21、 出光部 3、 第二导入部 22以及第 二传导臂 24依次连接围成的空间内。 具体地, 该第三导入部 25—端位于第一导 入部 21和第二导入部 22之间而连接出光部 3, 另一端位于第一传导臂 23和第二传 导臂 24之间而连接入光部 1, 使得进入入光部 1内的光线可一部分直接通过第三 导入部 25传导进入出光部 3。 第三导入部 25也可为相对出光部 3垂直的板状结构 ; 第三导入部 25的宽度自连接出光部 3的一端向连接入光部 1的一端逐渐减小。 如图 3所示, 该第三导入部 25和第一导入部 21、 第二导入部 22分别自出光部 3的 底部朝向远离出光部 3中轴线的三个方向延伸, 从而光线可自出光部 3的三个方 向进入其中, 光线反射的传导路径如图 3中箭头路线所示。
[0046] 优选地, 如图 3所示, 第一导入部 21的中心与第三导入部 25的中心之间的夹角 α 为 95-140° ; 第二导入部 22的中心与第三导入部 25的中心之间的夹角 α为 95-140。 。 第三导入部 25的一端与入光部 1正对连接, 以使得第三导入部 25的中心与入光 部 1的中心重叠, 从而第一导入部 21的中心与第三导入部 25的中心之间的夹角 α 也为第一导入部 21的中心与入光部 1的中心之间的夹角, 第二导入部 22同理。
[0047] 出光部 3包括相背的顶面和底面、 以及连接顶面和底面的内侧面和外侧面; 第 一导入部 21和第二导入部 22的上表面与出光部 3的外侧面相连接, 第一导入部 21 和第二导入部 22的下表面和出光部 3的底面相连接。
[0048] 进一步地, 如图 2、 5所示, 出光部 3的底部端面 (底面) 的设有向出光部 3中轴 线及顶部方向倾斜的环形反光斜面 31, 第一传导部 21和第二传导部 22的与出光 部 3相对的侧面反射的光线在出光部 3内经该反光斜面 31的反射, 部分直接射向 出光部 3的顶面 (如图 5中箭头路线所示) , 部分可经出光部 3的外侧面和内侧面 之间反射到顶面, 部分光线还可从外侧面和 /或内侧面折射出去。 反光斜面 31与 光传导部 2 (或第一导入部 21、 第二导入部 22) 所在平面之间的夹角 γ小于 45°, 以保证该反光斜面 31能够将光线大部分反射到出光部 3的顶面、 外侧面上。 反光 斜面 31上可设有经晒纹处理形成的晒纹结构或抛光处理形成的抛光面; 晒纹结 构可增强光线的漫反射的效果, 进一步改善出光部 3顶部透光均匀性。 反光斜面 31上靠近入光部 1的位置还可设有凹槽 33, 可降低该位置处因靠近入光部 1 (也 靠近光源) 而过亮的影响。
[0049] 出光部 3的顶面将反光斜面 31直接反射过来的光线、 以及外侧面或内侧面反射 过来的光线折射出去。 出光部 3的顶部端面 (顶面) 可设有向出光部 3中轴线及 底部方向倾斜的环形出光斜面 32。 出光斜面 32上可设有经晒纹处理形成的晒纹 结构, 增强光线的漫反射的效果。
[0050] 另外, 如图 2所示, 该导光件还包括可固定部 4, 固定部 4设置在出光部 3的底部 , 用于导光件的安装固定。 固定部 4可包括至少一个弹性卡扣 41。
[0051] 该导光件可通过注塑一体成型, 制作简单。 导光件可采用透明材料制成, 例如 玻璃、 透明塑胶以及透明树脂等等。 为避免光线从光传导部 2折射出来而损失, 光传导部 2各结构中的上、 下表面和侧面中可部分或全部, 以及出光部 3的底面 上可设置遮光层 (未图示) 。 遮光层可采用不透光的油墨或黑漆涂覆形成。
[0052] 本发明的导光件, 通过光传导部 2将从入光部 1进来的光线进行传导, 使得光线 从出光部 3的底部四周反射进去, 通过出光部 3顶部漫射出来, 形成均匀柔和的 光线。 为减小光线在导光件内多次反射后的损耗, 可适当增大反光斜面 131、 31 , 圆弧过渡面 231、 241以及反光部 211、 221的有效反射面积。 为进一步提高导 光件的透光均匀性, 还可在反光斜面 131、 31, 圆弧过渡面 231、 241以及反光部 211、 221中一个或多个上设置遮光层 (未图示) 。 遮光层可采用不透光的油墨 或黑漆涂覆形成。
[0053] 如图 6所示, 本发明一实施例的操作面板, 包括面板 10以及按键装置, 按键装 置设置在面板 10内侧。 其中, 按键装置包括电路板 20、 触动幵关 30、 弹性按钮 4 0、 光源 50以及上述图 1-5所示实施例中的导光件; 触动幵关 30和光源 50均设置在 电路板 20上并与电路板 20电连接, 弹性按钮 40套设在触动幵关 30上, 从而通过 按压弹性按钮 40可按压触动幵关 30。 电路板 20上于触动幵关 30的至少一侧还可 设置光源 202, 通过该光源 202发光照亮弹性按钮 40。 弹性按钮 40可由硅胶材料 制成; 弹性按钮 40的上表面可根据需要设置各种字母、 图形等 LOGO; 该上表面 可全部透光或部分区域透光。
[0054] 导光件设置在电路板 20上; 结合参考图 1-6, 导光件的出光部 3套设在弹性按钮 40外周, 导光件的入光部 1对应在光源 50上方, 从而导光件占用空间小。 电路板 20上设有安装部 201, 安装部 201位于触动幵关 30周围, 导光件通过底部的固定 部 4与安装部 201配合固定在电路板 20上。 如图 6所示, 在本实施例中, 安装部 20 1包括至少一个安装孔, 导光件的弹性卡扣 41可穿过安装孔扣搭在电路板 20上。
[0055] 优选地, 光源 50位于触动幵关 30和弹性按钮 40外围的一侧, 导光件安装吋通过 入光部 1对准光源 50而将出光部 3套设到弹性按钮 40上。 进一步地, 弹性按钮 40 的底部外周上可设有定位凸起 401, 定位凸起 401可对应出光部 3的反光斜面 31上 的凹槽 33设置, 定位凸起 401可配合在凹槽 33 (如图 2所示) 内。 当出光部 3套设 在弹性按钮 40上吋, 定位凸起 401对应嵌入凹槽 33中, 该定位凸起 401和凹槽 33 的相配合设置, 可对弹性按钮 40进行限位, 将弹性按钮 40和导光件之间相对固 定, 防止弹性按钮 40在出光部 3内沿周向转动。
[0056] 在实际运用中, 光源 50可采用不同颜色的 LED灯作功能区别; 或者采用变色 LE D灯, 通过该 LED灯显示的颜色指示不同的工作状态; 或者采用多个不同颜色的 LED灯, 通过对应颜色的 LED灯亮指示对应的工作状态。 光源 50也可采用不同发 亮方式如常亮或闪烁来指示工作状态。
[0057] 面板 10对应导光件的出光部 3设有通孔 101, 导光件的出光部 3配合在通孔 101中 并露出面板 10; 弹性按钮 40在出光部 3中也露出面板 10, 供按压。 光源 50发光吋 , 光线通过入光部 1、 光传导部 2传导至出光部 3, 并在出光部 3顶部均匀漫射出 来, 形成在弹性按钮 40外周发光的光圈, 且可根据光源 50发出光线的颜色指示 不同的工作状态。
以上所述仅为本发明的实施例, 并非因此限制本发明的专利范围, 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换, 或直接或间接运用在 其他相关的技术领域, 均同理包括在本发明的专利保护范围内。

Claims

权利要求书
[权利要求 1] 一种导光件, 包括接收光源光线的入光部 (1) 、 对所述光线进行传 导的光传导部 (2) 、 以及将所述光线均匀射出的出光部 (3) ; 其特 征在于, 所述出光部 (3) 为环状柱体, 所述入光部 (1) 位于所述出 光部 (3) 外围, 所述光传导部 (2) 包括自所述出光部 (3) 的底部 向远离所述出光部 (3) 的中轴线方向延伸设置的第一导入部 (21) 和第二导入部 (22) 、 以及第一传导臂 (23) 和第二传导臂 (24) ; 所述第一传导臂 (23) 和所述第二传导臂 (24) 的一端分别连接在所 述入光部 (1) 的两侧, 另一端分别与所述第一导入部 (21) 和第二 导入部 (22) 连接, 使得进入所述入光部 (1) 的光线经由所述光传 导部 (2) 传导至所述出光部 (3) , 并从所述出光部 (3) 的顶部射 出。
2、 根据权利要求 1所述的导光件, 其特征在于, 所述入光部 (1) 的 底面形成与所述光源相对、 接收所述光源光线的入光面 (11) ; 所述入光面 (11) 为平面或内凹的弧面; 或者, 所述入光面 (11) 上 设有与所述光源相对以进行聚光的凹槽 (12) 。
3、 根据权利要求 2所述的导光件, 其特征在于, 与所述入光面 (11) 相对的所述入光部 (1) 的顶面设有 V形槽 (13) , 所述 V形槽 (13) 的相对两壁面分别形成反光斜面 (131) , 所述第一传导臂 (23) 和 第二传导臂 (24) 的一端分别与两所述反光斜面 (131) 相接; 两所述反光斜面 (131) 之间的夹角 β小于 94°。
4、 根据权利要求 3所述的导光件, 其特征在于, 所述第一传导臂 (23 ) 和第二传导臂 (24) 上还分别设有与所述反光斜面 (131) 相接的 圆弧过渡面 (231、 241) 。
5、 根据权利要求 1所述的导光件, 其特征在于, 所述第一导入部 (21 ) 和第二导入部 (22) 为相对所述出光部 (3) 垂直的板状结构; 所 述第一导入部 (21) 的宽度自连接所述出光部 (3) 的一端向远离所 述出光部 (3) 的一端逐渐减小; 所述第二导入部 (22) 的宽度自连 接所述出光部 (3) 的一端向远离所述出光部 (3) 的一端逐渐减小; 所述第一传导臂 (23) 和第二传导臂 (24) 为相对所述出光部 (3) 的中轴线向外弯曲的弧形臂。
6、 根据权利要求 1所述的导光件, 其特征在于, 所述出光部 (3) 的 顶部端面设有向所述出光部 (3) 中轴线及底部方向倾斜的出光斜面
(32) ; 和 /或, 所述出光部 (3) 的底部端面的设有向所述出光部 ( 3) 中轴线及顶部方向倾斜的环形反光斜面 (31) ;
所述反光斜面 (31) 与所述第一导入部 (21) 和第二导入部 (22) 所 在平面之间的夹角 γ小于 45°。
7、 根据权利要求 6所述的导光件, 其特征在于, 所述出光斜面 (32) 上设有经晒纹处理形成的晒纹结构; 所述反光斜面 (31) 上设有经晒 纹处理形成的晒纹结构或抛光处理形成的抛光面。
8、 根据权利要求 1所述的导光件, 其特征在于, 所述第一传导臂 (23 ) 的一端与所述第一导入部 (21) 远离所述出光部 (3) 的一端侧面 相接, 所述第二传导臂 (24) 的一端与所述第二导入部 (22) 远离所 述出光部 (3) 的一端侧面相接;
所述第一导入部 (21) 远离所述出光部 (3) 的一端、 以及所述第二 导入部 (22) 远离所述出光部 (3) 的一端分别设有反光部 (211、 22 1) , 且所述反光部 (211、 221) 与所述出光部 (3) 相对; 所述反光部 (211、 221) 为弧面或平面。
9、 根据权利要求 1所述的导光件, 其特征在于, 所述光传导部 (2) 还包括第三导入部 (25) , 所述第三导入部 (25) —端位于所述第一 导入部 (21) 和第二导入部 (22) 之间而连接所述出光部 (3) , 另 一端位于所述第一传导臂 (23) 和第二传导臂 (24) 之间而连接所述 入光部 (1) 。
10、 根据权利要求 9所述的导光件, 其特征在于, 所述第一导入部 (2 1) 的中心与所述第三导入部 (25) 的中心之间的夹角 α为 95-140° ; 所述第二导入部 (22) 的中心与所述第三导入部 (25) 的中心之间的 夹角 α为 95-140°。
11、 根据权利要求 9所述的导光件, 其特征在于, 所述第三导入部 (2 5) 为相对所述出光部 (3) 垂直的板状结构; 所述第三导入部 (25) 的宽度自连接所述出光部 (3) 的一端向连接所述入光部 (1) 的一端 逐渐减小。
12、 根据权利要求 1-11任一项所述的导光件, 其特征在于, 该导光件 还包括固定部 (4) , 所述固定部 (4) 设置在所述出光部 (3) 的底 部;
所述固定部 (4) 包括至少一个弹性卡扣 (41) 。
13、 一种按键装置, 其特征在于, 包括电路板 (20) 、 触动幵关 (30 ) 、 弹性按钮 (40) 、 光源 (50) 以及权利要求 1-12任一项所述的导 光件, 所述触动幵关 (30) 和光源 (50) 均设置在所述电路板 (20) 上并与所述电路板 (20) 电连接, 所述弹性按钮 (40) 套设在所述触 动幵关 (30) 上, 所述导光件设置在所述电路板 (20) 上; 其中, 所 述导光件的出光部 (3) 套设在所述弹性按钮 (40) 外周, 所述导光 件的入光部 (1) 对应在所述光源 (50) 上方。
14、 一种操作面板, 其特征在于, 包括面板 (10) 以及权利要求 13所 述的按键装置, 所述按键装置设置在所述面板 (10) 内侧, 所述面板
( 10) 对应所述按键装置中导光件的出光部 (3) 设有通孔 (101) , 所述导光件的出光部 (3) 配合在所述通孔 (101) 中并露出所述面板 ( 10) 。
PCT/CN2015/083698 2014-10-23 2015-07-10 导光件、按键装置及操作面板 WO2016062124A1 (zh)

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