CN208369557U - Capacitance type touch control keys and household electrical appliance - Google Patents
Capacitance type touch control keys and household electrical appliance Download PDFInfo
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- CN208369557U CN208369557U CN201821204611.8U CN201821204611U CN208369557U CN 208369557 U CN208369557 U CN 208369557U CN 201821204611 U CN201821204611 U CN 201821204611U CN 208369557 U CN208369557 U CN 208369557U
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- sheet metal
- key sheet
- touch panel
- capacitance type
- control keys
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Abstract
The utility model provides a kind of capacitance type touch control keys and household electrical appliance.Wherein, capacitance type touch control keys include: touch panel and pcb board, pcb board is set to below touch panel, conduct piece is installed on pcb board, the upper surface of touch panel corresponds to conduct piece equipped with key sheet metal, touch panel, every being set between key sheet metal and conduct piece, forms capacitor between key sheet metal and conduct piece as dielectric.Capacitance type touch control keys provided by the utility model solve the problems, such as that existing household electrical appliance capacitance touching control scheme touch area is small, are not easy to touch, and improve product specification.
Description
Technical field
The utility model relates to household appliance technical fields, more specifically, are related to a kind of capacitance type touch control keys and including should
The household electrical appliance of capacitance type touch control keys.
Background technique
The existing household electrical appliance based on capacitance touching control, such as cooking apparatus, key touch area is smaller, sometimes user hand
Busy foot is disorderly not easy to touch, and reduces user experience.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, the purpose of the utility model one aspect is, a kind of capacitance type touch control keys are provided.
The purpose of the utility model other side is, provides a kind of household electric including above-mentioned capacitance type touch control keys
Device.
To achieve the above object, the technical solution of the utility model first aspect provides a kind of capacitance type touch control keys,
It include: touch panel；And pcb board is installed with conduct piece, the touch-control set on the side of the touch panel on the pcb board
Panel corresponds to the conduct piece equipped with key sheet metal far from the surface of the pcb board, and the touch panel is as dielectric
Every being set between the key sheet metal and the conduct piece, capacitor is formed between the key sheet metal and the conduct piece.
The capacitance type touch control keys that the utility model above-mentioned technical proposal provides, key sheet metal are arranged in touch surface backboard
From on the surface of pcb board, i.e., key sheet metal and pcb board are located at the opposite two sides of touch panel.Touch panel is insulation
Body, across touch panel as dielectric between such key sheet metal and conduct piece, between key sheet metal and conduct piece
Capacitor is formed, in this way when finger touch key-press sheet metal any position, the capacitor meeting constituted between key sheet metal and conduct piece
Generate variation, machine by detect the capacitance variations can key range whether touch, touch convenient and can be pressed by increasing
The area of key sheet metal increases touch area, solves in existing household electrical appliance capacitance touching control scheme that touch area is small, is not easy to touch
The problem of touching.
In addition, the capacitance type touch control keys that the utility model above-mentioned technical proposal provides can also have following supplementary technology
Feature:
In the above-mentioned technical solutions, it is preferable that the distance between the key sheet metal and the conduct piece d5 are in 0.4mm
Within the scope of~5.0mm, specific d5 be key sheet metal towards on the surface of conduct piece and conduct piece towards key sheet metal
The distance between surface, d5 can be but be not limited to 0.4mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm；And/or institute
The area S of key sheet metal is stated in 100mm2~2000mm2In range, S can be but be not limited to 100mm2、500mm2、
1000mm2、1500mm2Or 2000mm2, it is preferable that the range of S is 400mm2~1000mm2。
In the above-mentioned technical solutions, it is preferable that the touch panel is equipped with groove, institute far from the surface of the pcb board
Key sheet metal is stated to be adapted and be located in the groove with the groove.
Touch panel is bonded in groove, for the aesthetics for improving touch panel, the size and shape point of key sheet metal
It is not adapted with the size and shape of groove, and surface and touch panel table far from pcb board of the key sheet metal far from pcb board
Face is concordant.
In the above-mentioned technical solutions, it is preferable that multiple conduct pieces, the touch panel are installed on the pcb board
It is equipped with and the one-to-one multiple key sheet metals of multiple conduct pieces.
In the above-mentioned technical solutions, it is preferable that there is the first gap, and described first between the adjacent key sheet metal
The gap width in gap within the scope of 0.2mm~5.0mm, the gap width in the first gap can be but be not limited to 0.2mm,
1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.
In the above-mentioned technical solutions, it is preferable that the outer ledge shape and the touching of the outermost key sheet metal
The outer ledge shape of control panel is adapted, and the outer ledge of the outermost key sheet metal and the touch surface
The distance between outer ledge of plate d3 is within the scope of 0.2mm~5.0mm.
The shape of the outer ledge of touch panel can be arc or linear type, adjacent outermost sheet metal it is outer
The shape of side edge is arc or linear type, the aesthetics of holding capacitor formula touch controlled key.D3 can be but be not limited to 0.2mm,
1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.
In the above-mentioned technical solutions, it is preferable that be connected with display area on the pcb board, and set on the touch panel
There is the metallic region around display area setting.
Show hole corresponding with display area is equipped in the middle part of metallic region, display area can be charactron, digital screen
Or TFT color LCD screen etc..Metallic region, which is arranged, can be improved the metal accounting of capacitance type touch control keys, improve the shelves of product
It is secondary.
In the above-mentioned technical solutions, it is preferable that there is the second gap between the key sheet metal and the metallic region,
1 width of gap d in second gap within the scope of 0.2mm~5.0mm, d1 can be but be not limited to 0.2mm, 1.0mm,
2.0mm, 3.0mm, 4.0mm or 5.0mm.
In the above-mentioned technical solutions, it is preferable that the pcb board is equipped with functional indicator light, the touch panel and described
Indicator light transparent window corresponding with the functional indicator light is equipped on key sheet metal.
In the above-mentioned technical solutions, it is preferable that the conduct piece includes pressing key spring, alternatively, the conduct piece includes modeling
Material ring and the metal layer being arranged on the plastics ring inner surface.
The technical solution of the utility model second aspect provides a kind of household electrical appliance, including such as any of the above-described technical solution
The capacitance type touch control keys.
The household electrical appliance that the utility model above-mentioned technical proposal provides, because it is with electricity described in any of the above-described technical solution
Appearance formula touch controlled key, thus the beneficial effect with capacitance type touch control keys described in any of the above-described technical solution.
Preferably, household electrical appliance are cooking apparatus, such as pressure cooker, electric cooker, juice extractor, soy bean milk making machine etc..
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the schematic view of the front view of capacitance type touch control keys described in the utility model one embodiment；
Fig. 2 is the side structure schematic view of capacitance type touch control keys shown in Fig. 1；
Fig. 3 is the schematic view of the front view of pcb board in capacitance type touch control keys shown in Fig. 1；
Fig. 4 is the touch schematic illustration of capacitance type touch control keys shown in Fig. 1.
Wherein, the corresponding relationship in Fig. 1 to Fig. 4 between appended drawing reference and component names are as follows:
1 functional indicator light, 2 conduct pieces, 3 key sheet metals, 4 indicator light transparent windows, 5 metallic regions, 6 displays
Region, 7 touch panels, 71 grooves, 8 pcb boards.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
It is novel to be implemented using other than the one described here mode, therefore, the protection scope of the utility model not by
The limitation of following public specific embodiment.
1 to Fig. 4 the capacitance type touch control keys and household according to some embodiments of the utility model are described with reference to the accompanying drawings
Electric appliance.
As shown in Figures 1 to 4, a kind of capacitance type touch control keys provided according to some embodiments of the utility model, including
Touch panel 7 and pcb board 8, pcb board 8 are set to the side of touch panel 7, and pcb board 8 leans on the surface of the touch panel
It is installed with conduct piece 2 on the surface of nearly touch panel, conduct piece 2 is supported between touch panel and pcb board, and touch panel 7 is remote
Surface from pcb board 8 corresponds to conduct piece 2 equipped with key sheet metal 3, and touch panel 7 is as dielectric every set on key metal
Between piece 3 and conduct piece 2, capacitor is formed between key sheet metal 3 and conduct piece 2.
The capacitance type touch control keys that the utility model above-mentioned technical proposal provides, key sheet metal 3 are arranged in touch panel 7
On the surface of pcb board 8, i.e., key sheet metal 3 and pcb board 8 are located at the opposite two sides of touch panel 7, as shown in figure 1,
Touch panel is located at the top of pcb board, and the upper surface of touch panel is equipped with key sheet metal.Touch panel 7 is insulator, this
It is used as dielectric across touch panel 7 between sample key sheet metal 3 and conduct piece 2, between key sheet metal 3 and conduct piece 2
Form capacitor, a pole of the conduct piece as capacitor, another pole of the key sheet metal as capacitor, in this way when finger touch key-press gold
Belong to 3 any position of piece, the capacitor constituted between key sheet metal 3 and conduct piece 2 can generate variation, connect capacitor inspection in Fig. 4 at A
Survey chip, for detecting the variation of capacitor, machine by detect the capacitance variations can key range whether touch, it is convenient to touch
And touch area can be increased by increasing the area of key sheet metal 3, it solves in existing household electrical appliance capacitance touching control scheme
Touch area is small, is not easy the problem of touching.
Preferably, as shown in figure 4, the distance between key sheet metal 3 and conduct piece 2 d5 are in 0.4mm~5.0mm range
It is interior, specific d5 be key sheet metal 3 towards on the surface of conduct piece 2 and conduct piece 2 towards between the surface of key sheet metal 3
Distance, as shown in figure 1, d5 is the lower surface and the distance between upper surface of conduct piece 2 of key sheet metal 3, d5 can be but
It is not limited to 0.4mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.By taking conduct piece is spring as an example, d5 and key sheet metal
Material and its area, key sheet metal and spring between dielectric (dielectric is touch panel) material, spring
Sectional area, the decrement of spring, the sensitivity setting of capacitance detecting chips etc. have relationship.
The area S of key sheet metal 3 is in 100mm2~2000mm2In range, S can be but be not limited to 100mm2、
500mm2、1000mm2、1500mm2Or 2000mm2, it is preferable that the range of S is 400mm2~1000mm2.The shape of key sheet metal
Shape can be polygon, circle, ellipse or irregular shape.
Preferably, touch panel 7 is equipped with groove 71 far from the surface of pcb board 8, and key sheet metal 3 is suitable with 71 phase of groove
Match and is located in groove 71.
Preferably, touch panel 7 is bonded in groove 71, for improve touch panel 7 aesthetics, key sheet metal 3
Size and shape is adapted with the size and shape of groove 71 respectively, and surface and touch-control of the key sheet metal 3 far from pcb board 8
Flush of the panel 7 far from pcb board 8, in Fig. 4, the upper surface of key sheet metal 3 is concordant with the upper surface of touch panel 7.
Preferably, multiple conduct pieces 2 are installed on pcb board 8, touch panel 7 is equipped with to be corresponded with multiple conduct pieces 2
Multiple key sheet metals 3.
Preferably, there is the first gap, and gap width d2, d3 in the first gap exists between adjacent key sheet metal 3
Within the scope of 0.2mm~5.0mm, the gap width in the first gap can be but be not limited to 0.2mm, 1.0mm, 2.0mm, 3.0mm,
4.0mm or 5.0mm.
Preferably, the outer ledge shape of outermost key sheet metal 3 is mutually fitted with the outer ledge shape of touch panel 7
Match, and the distance between outer ledge of the outer ledge of outermost key sheet metal 3 and touch panel 7 d3 0.2mm~
Within the scope of 5.0mm.
The shape of the outer ledge of touch panel 7 can be arc or linear type, adjacent outermost sheet metal
The shape of outer ledge is arc or linear type, and as shown in figure 1, the rightmost side edge of touch panel is arc-shaped, the corresponding rightmost side
Key sheet metal outer ledge it is arc-shaped, the top side edge of touch panel is of a straight line type, the key of corresponding top side
The top side edge of sheet metal is also in line type, the aesthetics of holding capacitor formula touch controlled key.D3 can be but be not limited to
0.2mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.
Preferably, display area 6 is connected on pcb board 8, and touch panel 7 is equipped with the gold being arranged around display area 6
Belong to region 5.
Show hole corresponding with display area 6 is equipped in the middle part of metallic region 5, display area 6 can be charactron, number
Screen or TFT color LCD screen etc..Metallic region 5, which is arranged, can be improved the metal accounting of capacitance type touch control keys, improve product
Class.
Preferably, there is the second gap, 1 width of gap d in the second gap exists between key sheet metal 3 and metallic region 5
Within the scope of 0.2mm~5.0mm, d1 can be but be not limited to 0.2mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.
As shown in figure 1, the gap between key sheet metal and metallic region is denoted as d1, the adjacent two keys sheet metal of left and right directions
Between gap be denoted as d2, the distance of key sheet metal and touch panel edge is denoted as d3, between upper and lower touch controlled key sheet metal
Gap be denoted as d4 (similar with d2, can be same parameters).By taking conduct piece is spring as an example, d1, d2, d3, d4 and key metal
The material and its area of piece, the dielectric material between sheet metal and spring, the sectional area of spring, the decrement of spring, electricity
The sensitivity setting etc. for holding detection chip has relationship, both can be all equal or differs, value range is 0.2~5mm, is
Prevent the conducting liquids such as oil droplet, water droplet drop from two key sheet metals being caused to be connected on the control panel, the model of d1, d2, d3, d4
It encloses and preferentially takes 1mm~5mm.
Preferably, pcb board 8 is equipped with functional indicator light 1, is equipped on touch panel 7 and key sheet metal 3 and refers to function
Show the corresponding indicator light transparent window 4 of lamp 1.
Preferably, conduct piece 2 can be key spring.Or conduct piece 2 includes that plastic hoop and plating are located at table in plastic hoop
One end of metal layer on face, plastic hoop is connected on pcb board, and the other end is connected on touch panel.
The technical solution of the utility model second aspect provides a kind of household electrical appliance, including such as any of the above-described technical solution
Capacitance type touch control keys.
The household electrical appliance that the utility model above-mentioned technical proposal provides, because of its condenser type with any of the above-described technical solution
Touch controlled key, thus the beneficial effect of the capacitance type touch control keys with any of the above-described technical solution.
The embodiment of the utility model second aspect provides a kind of household electrical appliance, the electricity including such as above-mentioned any embodiment
Appearance formula touch controlled key.
The household electrical appliance that the utility model above-mentioned technical proposal provides, because of its condenser type with any of the above-described technical solution
Touch controlled key, thus the beneficial effect of the capacitance type touch control keys with any of the above-described technical solution.
In some embodiments of the utility model, household electrical appliance be that electromagnetic oven or electric cooker or electric pressure cooking saucepan etc. are cooked
Utensil, certain household electrical appliance are also possible to have other household electrical appliance such as soy bean milk making machine, washing machine of capacitance type touch control keys etc.,
Namely above-mentioned capacitance type touch control keys are widely used in various small household electrical appliances, without departing from the design of the utility model
Design, should be within the protection scope of the present utility model.
In conclusion capacitance type touch control keys provided by the embodiment of the utility model, as long as 3rd area of touch key-press sheet metal
Domain can trigger corresponding key, improve user experience, and entire surface sheetmetal accounting is very high after setting metallic region 5, produces
Product class also obtains whole promotion.
In the description of the utility model, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or unit must have specific direction, be constructed and operated in a specific orientation, it is thus impossible to understand
For limitations of the present invention.
In the description of the present invention, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection, or is electrically connected
It connects；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (11)
1. a kind of capacitance type touch control keys characterized by comprising
Touch panel；With
Pcb board, set on the side of the touch panel, the pcb board is installed with conduction on the surface of the touch panel
Part, the touch panel correspond to the conduct piece equipped with key sheet metal far from the surface of the pcb board, and the touch panel is made
Be dielectric every being set between the key sheet metal and the conduct piece, and the key sheet metal and the conduct piece it
Between form capacitor.
2. capacitance type touch control keys according to claim 1, which is characterized in that
The distance between the key sheet metal and the conduct piece are within the scope of 0.4mm~5.0mm；And/or
The area of the key sheet metal is in 100mm2~2000mm2In range.
3. capacitance type touch control keys according to claim 1, which is characterized in that
The touch panel is equipped with groove far from the surface of the pcb board, and the key sheet metal is adapted with the groove
And it is located in the groove.
4. capacitance type touch control keys according to any one of claim 1 to 3, which is characterized in that
Multiple conduct pieces are installed on the pcb board, the touch panel is equipped with a pair of with multiple conduct pieces one
The multiple key sheet metals answered.
5. capacitance type touch control keys according to claim 4, which is characterized in that
There is the first gap, and the gap width in first gap is in 0.2mm~5.0mm between the adjacent key sheet metal
In range.
6. capacitance type touch control keys according to claim 4, which is characterized in that
The outer ledge shape of the outermost key sheet metal is adapted with the outer ledge shape of the touch panel, and
The distance between outer ledge of the outer ledge of the outermost key sheet metal and the touch panel is in 0.2mm
Within the scope of~5.0mm.
7. capacitance type touch control keys according to any one of claim 1 to 3, which is characterized in that
Display area is connected on the pcb board, and the touch panel is equipped with the metal around display area setting
Region.
8. capacitance type touch control keys according to claim 7, which is characterized in that
There is the second gap, the gap width in second gap exists between the key sheet metal and the metallic region
Within the scope of 0.2mm~5.0mm.
9. capacitance type touch control keys according to any one of claim 1 to 3, which is characterized in that
The pcb board is equipped with functional indicator light, is equipped with and the function on the touch panel and the key sheet metal
The corresponding indicator light transparent window of indicator light.
10. capacitance type touch control keys according to any one of claim 1 to 3, which is characterized in that
The conduct piece includes pressing key spring, alternatively, the conduct piece includes plastic hoop and is arranged in the plastics ring inner surface
On metal layer.
11. a kind of household electrical appliance, which is characterized in that pressed including the capacitance touching control as described in any one of claims 1 to 10
Key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204611.8U CN208369557U (en) | 2018-07-27 | 2018-07-27 | Capacitance type touch control keys and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204611.8U CN208369557U (en) | 2018-07-27 | 2018-07-27 | Capacitance type touch control keys and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369557U true CN208369557U (en) | 2019-01-11 |
Family
ID=64923794
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821204611.8U Active CN208369557U (en) | 2018-07-27 | 2018-07-27 | Capacitance type touch control keys and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11829563B2 (en) | 2021-10-18 | 2023-11-28 | Electrolux Home Products, Inc. | Method for operating a safety-critical function using a touch sensor |
-
2018
- 2018-07-27 CN CN201821204611.8U patent/CN208369557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11829563B2 (en) | 2021-10-18 | 2023-11-28 | Electrolux Home Products, Inc. | Method for operating a safety-critical function using a touch sensor |
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