CN208797916U - Key, touch panel and household electrical appliance - Google Patents

Abstract

The household electrical appliance, touch panel and key of the utility model include circuit board, conductive shell, light source and even mating plate.Shell includes opposite bottom surface and top surface, and shell offers the accommodating chamber through bottom surface and top surface, and bottom surface one end installation of shell is electrically connected on circuit boards and with circuit board.Light source is installed on circuit boards and is housed in accommodating chamber, and light source and circuit board are electrically connected.Even mating plate is mounted on one end of the close top surface of shell and is housed in accommodating chamber, and even mating plate can equably export the light that light source issues to outside key.Shell in key is conductive, to key can be determined according to the change in electric on shell user whether touch control operation key, key can also control light source working according to the change in electric on shell, since the key of the utility model embodiment is when being touched operation, deformation occurs substantially or the deformation of generation is smaller for shell, to which positional shift will not occur for shell, and then improve the reliability of key.

Description

Key, touch panel and household electrical appliance

Technical field

The utility model relates to electronic technology fields, more specifically, are related to a kind of key, touch panel and household electric Device.

Background technique

The existing key on household electrical appliance generally uses snap switch, and the spring in snap switch is in use process Positional shift is easy to happen when neutralization is shaken, to influence the use of snap switch and reduce the reliable of household electrical appliance Property.

Utility model content

The utility model embodiment provides a kind of key, touch panel and household electrical appliance.

The key of the utility model embodiment includes circuit board, conductive shell, light source and even mating plate.The shell packet Opposite bottom surface and top surface are included, the shell offers the accommodating chamber through the bottom surface and the top surface, the institute of the shell Bottom surface one end is stated to be mounted on the circuit board and be electrically connected with the circuit board.The light source is mounted on the circuit board And be housed in the accommodating chamber, the light source and the circuit board are electrically connected.The even mating plate is mounted on the shell One end of the close top surface is simultaneously housed in the accommodating chamber, and the light that the even mating plate can issue the light source is uniform Ground is exported to outside the key.

In some embodiments, on from the bottom surface to the direction of the top surface, the inner surface of the shell is parallel Size in the section that the face of the bottom surface is intercepted is gradually increased.

In some embodiments, the shell include be connected go straight up to portion and extension, the bottom surface is located at described The one end far from the extension in portion is gone straight up to, the top surface is located at one end that portion is gone straight up to far from described in of the extension, institute It states the portion of going straight up to and surrounds accommodating cavity, the extension surrounds reflection cavity, and the reflection cavity is connected to form the receipts with the accommodating cavity Cavity, the light source are housed in the accommodating cavity, and the light that the light source issues enters the reflection cavity and can be described Extension reflection, from the bottom surface to the direction of the top surface on, the inner surface of the extension is parallel to the bottom surface The size in the section that face is intercepted is gradually increased.

In some embodiments, the light source be mounted on it is described go straight up in portion, the center of the light source to the circuit The distance of plate goes straight up to the center in portion to the distance of the circuit board described in being greater than.

In some embodiments, the key further includes shell pin, and the shell pin, which is arranged, goes straight up to portion described The bottom surface one end, the shell pin and the circuit board grafting.

In some embodiments, the shell includes the inner surface in the accommodating chamber, and the inner surface leans on One end of the nearly top surface offers mounting groove, and the even mating plate is mounted in the mounting groove；The even mating plate includes ontology And annular protrusion, the ontology include side, the protrusion is extended outward to form from the side, the protrusion installation In the mounting groove.

In some embodiments, the shell is in black；The light source includes LED light；The even mating plate includes convex lens Mirror；The even mating plate has orthogonal first center line and the second center line, and the even mating plate is by first center line Symmetrical two parts are divided into, the even mating plate is divided into symmetrical two parts by second center line.

In some embodiments, the key further includes touch controlled key chip, and the touch controlled key chip is electrically connected The circuit board, the touch controlled key chip is for controlling the light source working when the shell is by touch-control.

The touch panel of the utility model embodiment includes key described in panel and above-mentioned any one embodiment, The key installation is on the panel.

The household electrical appliance of the utility model embodiment include touch panel described in main body and above embodiment, described Touch panel is installed on the body.

Shell in the household electrical appliance of the utility model embodiment, touch panel and key is conductive, to press The enough electric signals (for example, quantity of electric charge) according on shell of bond energy change determine user whether touch control operation key, key can also Light source working is controlled according to the change in electric on shell, the key due to the utility model embodiment is being touched operation When, deformation occurs substantially or the deformation of generation is smaller (deformation generated less than the spring in snap switch) for shell, thus Positional shift will not occur for shell, and then improve the reliability of key；Further, the key of the utility model embodiment It is uniformly exported to outside shell by the way that even mating plate is arranged so as to the light for issuing light source, and then improves key sending The display effect of light.

The additional aspect and advantage of the embodiments of the present invention will be set forth in part in the description, partially will be from Become obvious in following description, or is recognized by the practice of the embodiments of the present invention.

Detailed description of the invention

In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination following accompanying drawings to embodiment It will be apparent and be readily appreciated that, in which:

Fig. 1 is the schematic perspective view of the key of the utility model embodiment.

Fig. 2 is the schematic cross-section of the key of the utility model embodiment.

Fig. 3 is the partial enlargement diagram at the III of key shown in Fig. 2.

Fig. 4 is the perspective exploded view of the key of the utility model embodiment.

Fig. 5 is the structural schematic diagram of the touch panel of the utility model embodiment.

Fig. 6 is the schematic perspective view of the household electrical appliance of the utility model embodiment.

Specific embodiment

The embodiments of the present invention is described further below in conjunction with attached drawing.Same or similar label in attached drawing Same or similar element or element with the same or similar functions are indicated from beginning to end.

In addition, the embodiments of the present invention described with reference to the accompanying drawing is exemplary, it is only used for explaining this reality With novel embodiment, and should not be understood as limiting the present invention.

Please refer to Fig. 1 and Fig. 2, the key 100 of the utility model embodiment include circuit board 10, conductive shell 20, Light source 30 and even mating plate 40.Shell 20 includes opposite bottom surface 21 and top surface 22, and shell 20 is offered through bottom surface 21 and top surface 22 accommodating chamber 23,21 one end of bottom surface installation of shell 20 are electrically connected on the circuit board 10 and with circuit board 10.Light source 30 is pacified It fills on the circuit board 10 and is housed in accommodating chamber 23, light source 30 and circuit board 10 are electrically connected.Even mating plate 40 is mounted on shell One end of 20 close top surface 22 is simultaneously housed in accommodating chamber 23, and even mating plate 40 can equably lead the light that light source 30 issues Out outside to key 100 (or shell 20).

Shell 20 can directly weld together with circuit board 10 and make shell 20 and circuit board 10 to be electrically connected.Due to shell Body 20 is conductive and shell 20 and circuit board 10 are electrically connected, when user's touch control operation key 100, specifically, when user touches When control operates panel 70 (as shown in Figure 5) corresponding with key 100, the finger of shell 20 and user are collectively formed capacitor and make shell Electric signal (for example, quantity of electric charge) on body 20 changes, and therefore, key 100 can be according to the electric signal (example on shell 20 Such as, the quantity of electric charge) change determine user whether touch control operation key 100, and key 100 can also be according to the telecommunications on shell 20 Number variation control light source 30 work (light source 30 is made to be turned on or off).When light source 30 is point light source, even mating plate 40 can be one A biconvex lens or even mating plate 40 can also be made of two plano-convex lens；At this point, even mating plate 40 can issue light source 30 The light of diverging equably export to key 100 (or shell 20) outside.

Shell 20 in the key 100 of the utility model embodiment is conductive, so that key 100 can be according to shell Electric signal (for example, quantity of electric charge) on body 20 change determine user whether touch control operation key 100, key 100 can also basis Change in electric control light source 30 on shell 20 works, since the key 100 of the utility model embodiment is being touched When operation, deformation occurs substantially or smaller (the shape generated less than the spring in snap switch of the deformation of generation for shell 20 Become), so that positional shift will not occur for shell 20, and then improve the reliability of key 100；Further, the utility model The key 100 of embodiment is uniformly exported so as to the light for issuing light source 30 to shell 20 by the way that even mating plate 40 is arranged Outside, and then the display effect for the light that key 100 issues is improved.

Please refer to Fig. 1 and Fig. 2, the key 100 of the utility model embodiment include circuit board 10, shell 20, light source 30, Even mating plate 40, shell pin 50 and touch controlled key chip 60.

Circuit board 10 can be flexible circuit board (Flexible Printed Circuit, FPC) or printed circuit board.

Shell 20 can be made of conductive material, for example, the material of shell 20 may include metal (metal include aluminium, Copper), semiconductor (semiconductor includes indium oxide, tin oxide), conductive plastics.The shell 20 of present embodiment is by conductive plastics system At.

Incorporated by reference to Fig. 4, shell 20 is arranged on the circuit board 10.Shell 20 includes going straight up to portion 24, extension 25 and protrusion 26, Portion 24 is gone straight up to be connected with extension 25.Shell 20 includes opposite bottom surface 21 and top surface 22, and bottom surface 21 is to go straight up to the remote of portion 24 A surface from extension 25, top surface 22 are extension 25 far from the surface for going straight up to portion 24.Shell 20 offers the bottom of through The accommodating chamber 23 in face 21 and top surface 22.The shell made of conductive plastics 20 of present embodiment is in black, specifically, shell 20 It may is that entire shell 20 in black in black；Shell 20 surrounds accommodating chamber 23 in what black may also is that at least shell 20 Inner surface 27 be in black, shell 20 is capable of reflecting light line and has the function of anti-optical crosstalk in black.In other embodiments, Also film that black can be set on the inner surface 27 of shell 20, being capable of reflecting light line and there is anti-optical crosstalk.

Section that the face for being parallel to bottom surface 21 in portion 24 is intercepted is gone straight up in track type, it is straight to go straight up to portion 24, It is that, from the direction of bottom surface 21 to top surface 22, the inner surface 27 for going straight up to portion 24 is parallel to section that the face of bottom surface 21 is intercepted Face size remains unchanged.The inside for going straight up to portion 24 is formed with accommodating cavity 231.

The inside of extension 25 is formed with reflection cavity 232, and reflection cavity 232 is connected to accommodating cavity 231 and receiving is collectively formed Chamber 23.The thickness and the thickness of extension 25 for going straight up to portion 24 can be equal.The face that extension 25 is parallel to bottom surface 21 is intercepted Section be in circular ring shape.The small big horn-like or bowl structure under being in of reflection cavity 232, that is to say, from bottom surface 21 to top surface 22 Direction on, the sectional dimension that the face that the inner surface 27 of extension 25 is parallel to bottom surface 21 is intercepted is gradually increased.

Protrusion 26 is arranged in the portion of going straight up to 24 and extends from bottom surface 21 towards 22 side of top surface and terminate in the appearance of extension 25 Face 251.The quantity of the protrusion 26 of present embodiment is two, and two protrusions 26 are separately positioned on the separate accommodating cavity in the portion of going straight up to 24 231 opposite end.

Bottom surface 21 offers spliced eye 211, and specifically, spliced eye 211 is provided on the outer wall and protrusion 26 in the portion of going straight up to 24. The quantity of present embodiment spliced eye 211 is for two and corresponding with two protrusions 26 respectively.

One end of shell pin 50 is inserted into spliced eye 211, and the other end of shell pin 50 exposes outside shell 20.Shell The quantity of body pin 50 is two, and two shell pins 50 are inserted respectively into two spliced eyes 211.Specifically, shell pin 50 can be inserted into spliced eye 211 by cold slotting technique.One end of the separate shell 20 of shell pin 50 and circuit board 10 are inserted It connects so that shell 20 and circuit board 10 to be electrically connected.

Incorporated by reference to Fig. 3, shell 20 includes the inner surface 27 in accommodating chamber 23.The one of the close top surface 22 of inner surface 27 End, which offers, is fitted around slot 28.

Light source 30 is installed on the circuit board 10 and is housed in accommodating cavity 231.The center of light source 30 to circuit board 10 away from It is greater than from D1 and goes straight up to the center in portion 24 to 10 distance D2 of circuit board.Specifically, light source 30 may include light source pin 31, light source Light source 30 is installed on the circuit board 10 with 10 grafting of circuit board and is electrically connected light source 30 with circuit board 10 by pin 31.Light Source 30 can be point light source, and the light source 30 of present embodiment can be LED light.

Incorporated by reference to Fig. 3 and Fig. 4, even mating plate 40 includes ontology 41 and protrusion 42.Approximate cylindrical, the ontology 41 of ontology 41 Including side 411, center position of the protrusion 42 from side away from ontology 41 is extended to form, and protrusion 42 is around ontology 41 Side 411 is arranged.Protrusion 42 is mounted in mounting groove 28, and protrusion 42 engages (fastening) in mounting groove 28.This embodiment party The even mating plate 40 of formula has orthogonal first center line and the second center line, and even mating plate 40 is divided by first center line At symmetrical two parts, even mating plate 40 is divided into symmetrical two parts by second center line, that is to say, that on even mating plate 40 Lower symmetrical and bilateral symmetry, in this way, the problem of installation of even mating plate 40 is without the concern for fool proof.The material of even mating plate 40 includes Light transmission and the material with even light action, for example, even mating plate 40 includes the even smooth film made of even luminescent material (even photo etching), or Person, entire even mating plate 40 are made of even luminescent material.In other embodiments, even mating plate 40 can for a biconvex lens or The even mating plate 40 of person can also be made of two plano-convex lens, the divergent rays court that convex lens utilizes concentrating light principles to issue light source 50 The optical axis direction of convex lens is concentrated, to play the role of even light.The light for the diverging that even mating plate 40 can issue light source 30 is equal It is exported evenly to key 100 (or shell 20) outside.In other embodiments, the quantity of protrusion 42 may be multiple, more A interval of protrusion 42 is arranged and around ontology 41；Alternatively, even mating plate 40 can also be not provided with protrusion 42, the side wall of ontology 41 It is directly installed in mounting groove 28.

Touch controlled key chip 60 can be set on the circuit board 10 and be electrically connected with circuit board 10, at this point, touch controlled key Chip 60 can be set in accommodating chamber 23 or be arranged outside accommodating chamber 23.When user's touch control operation key 100, specifically, When user's touch control operation panel 70 (as shown in Figure 5) corresponding with key 100, electricity is collectively formed in the finger of shell 20 and user Hold and the electric signal (for example, quantity of electric charge) on shell 20 is made to change, touch controlled key chip 60 can get the electric signal Variation, whether touch controlled key chip 60 determine key 100 by touch control operation according to the variation of the electric signal.Touch controlled key chip 60 when key 100 is by touch control operation, and touch control operation key 60 can be used for controlling light source 30 and be turned on or off.

Shell 20 in the key 100 of the utility model embodiment is conductive, so that key 100 can be according to shell Electric signal (for example, quantity of electric charge) on body 20 change determine user whether touch control operation key 100, key 100 can also basis Change in electric control light source 30 on shell 20 works, since the key 100 of the utility model embodiment is being touched When operation, deformation occurs substantially or smaller (the shape generated less than the spring in snap switch of the deformation of generation for shell 20 Become), so that positional shift will not occur for shell 20, and then improve the reliability of key 100；Further, the utility model The key 100 of embodiment is uniformly exported so as to the light for issuing light source 30 to shell 20 by the way that even mating plate 40 is arranged Outside, and then the display effect for the light that key 100 issues is improved.

Further, shell 20 is made of conductive plastics, therefore shell 20 is easy to happen deformation consequently facilitating by even light Piece 40 is installed in mounting groove 28；Shell 20 goes straight up to portion 24 and protrusion 26 by setting, convenient for being arranged shell pin 50 in shell On body 20 and it can ensure the intensity of shell 20；From the direction of bottom surface 21 to top surface 22, the inner surface 27 of extension 25 is put down Row is gradually increased in the sectional dimension that the face of bottom surface 21 is intercepted, thus when the light that light source 50 issues projects extension 25 When on inner surface 27, light can be reflexed to even mating plate 40 by inner surface 27, and the light of reflection can be penetrated under the effect of even mating plate 40 Out to outside shell 20, in this way, the light that light source 50 issues can more be projected to outside shell 20 under the action of inner surface 27, Also, light is reflexed to the edge of even mating plate 40 by the inner surface 27 of extension 25, and the light of reflection is made in even mating plate 40 After lower project to outside shell 20, the intensity of the light of the injection from the edge of even mating plate 40 can be increased, to reduce The intensity difference for the light that the edge at center and even mating plate 40 from even mating plate 40 is projected away from；The center of light source 30 is to circuit The distance D1 of plate 10, which is greater than, goes straight up to the center in portion 24 to the distance D2 of circuit board 10, so that the light that the center of light source 50 issues is equal It can be irradiated on the inner surface 27 of extension 25, and inner surface 27 of the light of the sending of light source 50 in extension 25 reflects and make Even mating plate 40 is transmitted under；Shell pin 50 is set on shell 20, consequently facilitating shell 20 and circuit board 10 are electrically connected；Shell Body 20 opens up mounting groove 28 and protrusion 42 is arranged consequently facilitating equal mating plate 40 is installed in accommodating chamber 23 in even mating plate 40.

In other embodiments, shell 20 can also be not provided with going straight up to portion 24, from the direction of bottom surface 21 to top surface 22, The size in the section that the face that the inner surface 27 of shell 20 is parallel to bottom surface 21 is intercepted is gradually increased.

When the light source 30 being mounted in accommodating chamber 23 is connected, the light that light source 30 issues can be penetrated more from top surface 22 Out to outside shell 20.

Referring to Fig. 5, the touch panel 200 of the utility model embodiment includes panel 70 and above-mentioned any one embodiment party The key 100 of formula, key 100 are mounted on panel 70.

Specifically, panel 70 is made of the material of light transmission, for example, the material of panel 70 can be glass, polymethyl Sour methyl esters (polymethyl methacrylate, PMMA), polycarbonate (Polycarbonate, PC).What key 100 issued Light can light-transmitting panel 70 project to outside touch panel 200.The corresponding touch area 71 of key 100 is provided on panel 70, When for when touching the touch area 71, the finger of shell 20 and user to be collectively formed capacitor and makes the electric signal on shell 20 (for example, quantity of electric charge) changes, and therefore, key 100 can change true according to the electric signal (for example, quantity of electric charge) on shell 20 Determine user whether touch control operation key 100, and key 100 can also according to the change in electric on shell 20 control light source 30 It works (light source 30 is made to be turned on or off).

Shell 20 in the touch panel 200 of the utility model embodiment is conductive, so that key 100 being capable of root According on shell 20 electric signal (for example, quantity of electric charge) change determine user whether touch control operation key 100, key 100 can also According on shell 20 change in electric control light source 30 work, due to the utility model embodiment key 100 by When touch control operation, deformation occurs substantially or the deformation of generation is smaller (less than the spring generation in snap switch for shell 20 Deformation), so that positional shift will not occur for shell 20, and then improve the reliability of key 100；Further, this is practical new The key 100 of type embodiment is uniformly exported so as to the light for issuing light source 30 to shell by the way that even mating plate 40 is arranged Outside 20, and then improve the display effect of the light of the sending of key 100.Further, key 100 is mounted on panel 70, from And it is convenient for the distance between setting button 100 (or shell 20) and panel 70, and then obtain user's touch control operation convenient for shell 20 Change in electric when key 100 on shell 20.

Referring to Fig. 6, the household electrical appliance 300 of the utility model embodiment include main body 80 and touch panel 200, touch-control Panel 200 is mounted in main body 80.

Household electrical appliance 300 include any one in washing machine, electromagnetic oven, micro-wave oven, smoke exhaust ventilator, water heater.At it In his embodiment, the circuit of key 100 and main body 80 is electrically connected, and key 100 can be also used for control 300 work of household electrical appliance Make.

Shell 20 in the touch panel 200 of the utility model embodiment is conductive, so that key 100 being capable of root According on shell 20 electric signal (for example, quantity of electric charge) change determine user whether touch control operation key 100, key 100 can also According on shell 20 change in electric control light source 30 work, due to the utility model embodiment key 100 by When touch control operation, deformation occurs substantially or the deformation of generation is smaller (less than the spring generation in snap switch for shell 20 Deformation), so that positional shift will not occur for shell 20, and then improve the reliability of key 100；Further, this is practical new The key 100 of type embodiment is uniformly exported so as to the light for issuing light source 30 to shell by the way that even mating plate 40 is arranged Outside 20, and then improve the display effect of the light of the sending of key 100.

In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " means in conjunction with the embodiment Or example particular features, structures, materials, or characteristics described are contained at least one embodiment of the utility model or show In example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And And particular features, structures, materials, or characteristics described can be in any one or more embodiments or example to close Suitable mode combines.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one described feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three, unless otherwise specifically defined.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model It inside can make changes, modifications, alterations, and variations to the above described embodiments, the scope of the utility model is by claim and its is equal Object limits.

Claims (10)

1. a kind of key, which is characterized in that the key includes:

Circuit board；

Conductive shell, the shell include opposite bottom surface and top surface, and the shell is offered through the bottom surface and described Described bottom surface one end of the accommodating chamber of top surface, the shell is mounted on the circuit board and is electrically connected with the circuit board；

Light source, the light source are mounted on the circuit board and are housed in the accommodating chamber, the light source and the circuit board It is electrically connected；And

Even mating plate, the even mating plate are mounted on one end of the close top surface of the shell and are housed in the accommodating chamber, The even mating plate can equably export the light that the light source issues to outside the key.

2. key according to claim 1, which is characterized in that on from the bottom surface to the direction of the top surface, the shell The size in the section that the face that the inner surface of body is parallel to the bottom surface is intercepted is gradually increased.

3. key according to claim 1, which is characterized in that the shell include be connected go straight up to portion and extension, The bottom surface is located at described one end far from the extension for going straight up to portion, and the top surface is located at the separate described of the extension The one end in portion is gone straight up to, the portion of going straight up to surrounds accommodating cavity, and the extension surrounds reflection cavity, the reflection cavity and the accommodating cavity Connection forms the accommodating chamber, and the light source is housed in the accommodating cavity, and the light that the light source issues enters the reflection Chamber can simultaneously be reflected by the extension, from the bottom surface to the direction of the top surface on, the inner surface of the extension is put down Size of the row in the section that the face of the bottom surface is intercepted is gradually increased.

4. key according to claim 3, which is characterized in that the light source be mounted on it is described go straight up in portion, the light source The distance of center to the circuit board be greater than and described go straight up to the center in portion to the distance of the circuit board.

5. key according to claim 3, which is characterized in that the key further includes shell pin, the shell pin One end of the bottom surface for going straight up to portion, the shell pin and the circuit board grafting are set.

6. key according to claim 1, which is characterized in that the shell includes the interior table in the accommodating chamber The one end close to the top surface in face, the inner surface offers mounting groove, and the even mating plate is mounted in the mounting groove；Institute Stating even mating plate includes ontology and annular protrusion, and the ontology includes side, and the protrusion extends outwardly shape from the side At the protrusion is mounted in the mounting groove.

7. key according to claim 1, which is characterized in that the shell is in black；The light source includes LED light；Institute Stating even mating plate includes convex lens；The even mating plate has orthogonal first center line and the second center line, the even mating plate Symmetrical two parts are divided by first center line, the even mating plate is divided into symmetrical two by second center line Point.

8. key according to claim 1, which is characterized in that the key further includes touch controlled key chip, the touch-control Key chip is electrically connected the circuit board, and the touch controlled key chip is for controlling the light source when the shell is by touch-control Work.

9. a kind of touch panel, which is characterized in that the touch panel includes:

Panel；And

Key described in claim 1-8 any one, the key installation is on the panel.

10. a kind of household electrical appliance, which is characterized in that the household electrical appliance include:

Main body；And

Touch panel as claimed in claim 9, the touch panel installation is on the body.