CN205959178U

CN205959178U - Compound touch key

Info

Publication number: CN205959178U
Application number: CN201620623619.2U
Authority: CN
Inventors: 李晓
Original assignee: Chipsea Technologies Shenzhen Co Ltd
Current assignee: Chipsea Technologies Shenzhen Co Ltd
Priority date: 2016-06-22
Filing date: 2016-06-22
Publication date: 2017-02-15
Anticipated expiration: 2026-06-22

Abstract

The utility model discloses a compound touch key, this compound touch key, including capacitive sensor and pressure sensor, button from the top down is first inductive layer in proper order to and second inductive layer, wherein first inductive layer includes dielectric layer and capacitive sensor in proper order, the second inductive layer is one deck pressure sensor layer. The utility model discloses it is not enough to overcome traditional electric capacity touch key or pressure touch key, reduces the spurious triggering probability.

Description

A kind of compound touch controlled key

Technical field

This utility model belongs to the technical field of touch-control, particularly to the structure design of touch controlled key.

Background technology

Touch controlled key technology obtains vigorous growth in recent years, substantially increases the efficiency of man-machine interaction.Particularly electricity Hold touch controlled key technology, be widely used in including fields such as smart mobile phone, panel computer and household electrical appliances, traditional for replacing Physical button.Capacitor touch button have the advantages that many, clean and tidy, easy to clean etc. excellent including lossless, life-span length, appearance looks elegant Point, but also have some shortcomings, including being easily disturbed, in wet condition poor reliability, can only staff operation, and only switch Two states etc..Another kind of pressure touch has some advantages of capacitance touching control technology by key technology, also overcomes some simultaneously Shortcoming, including the reliability that improve wet environment, can identify multiple input states etc..

As disclosed in patent application 201480053149.4, a kind of touch control panel device includes upper surface, is operably coupled to The capacitance sensor of upper surface, be located at capacitance sensor below electric resistance sensor and be operably coupled to capacitance sensor At least one controller with electric resistance sensor.This at least one controller and capacitance sensor are configured to detect on upper surface One or more objects.This at least one controller and electric resistance sensor are configured to independent of at least one controller and electricity The detection holding sensor is detecting the one or more objects on upper surface.At least one controller is configured to use be derived from and is somebody's turn to do The information of the detection of at least one controller and capacitance sensor and the inspection from this at least one controller and electric resistance sensor The information surveyed is determining one or more objects position on an upper.

But this brings new problem to user mutual it is simply that when non-staff operates, such as shaking, colliding with, can increase The possibility of false triggering.

Content of the invention

For solving the above problems, the purpose of this utility model is to provide a kind of compound touch controlled key, this button can gram Take traditional capacitance touch controlled key or the deficiency of pressure touch button, reduce false triggering probability.

For achieving the above object, the technical solution of the utility model is as follows.

A kind of compound touch controlled key, includes capacitance sensor and pressure transducer it is characterised in that described button is from upper To under be followed successively by the first inductive layer, and the second inductive layer；Wherein said first inductive layer includes dielectric layer and electric capacity successively Sensor；Described second inductive layer is a lamination force sensor layer.

Described dielectric layer is glass cover-plate and/or polaroid.

Described capacitance sensor includes matrix and is fixed on matrix or a plurality of capacitive sensing electrode.

Further, described matrix is generally PCB substrate；Described capacitive sensing electrode is usually arranged at the Copper Foil on PCB Sensor.

Above-mentioned matrix one side arranges capacitive sensing electrode, and another side is fitted with pressure transducer layer.

Described pressure transducer layer includes a flexible substrate, and or a plurality of varistor being printed thereon.

Described varistor adopts composite conductor material to make, and described varistor one full-bridge electricity of every four compositions Road, to form good pressure sensitive.

The lower section of described pressure transducer layer is additionally provided with support member, and support member is generally arranged at the office of pressure transducer layer Portion, is supported to pressure transducer from local, provides deformation space to pressure transducer simultaneously, thus strengthening pressure sensitive spirit Sensitivity.

Compound touch controlled key described in the utility model, the shortcoming that can on the one hand avoid mechanical key, have dust-proof anti- Water, the advantages of life-span length, is avoided that pure capacitance button or the defect of the easy maloperation of pressure buttons again.

Brief description

Fig. 1 is the compound touch control key strcture figure that this utility model is implemented.

Fig. 2 is the structure chart that the compound touch controlled key that this utility model is implemented is applied to mobile phone.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain This utility model, is not used to limit this utility model.

Shown in Figure 1, compound touch controlled key 100, down include dielectric layer 101 successively from upper (close to finger side), Capacitance sensor 102 (including multiple capacitive sensing electrodes), dielectric layer 103, pressure transducer 105, and the support of both sides Part 104.Its dielectric layer 101 is usually glass cover-plate, and capacitance sensor 102 is generally the Copper Foil sensor on PCB, dielectric layer 103 are generally PCB substrate, and pressure transducer 105 is generally composite pressure-sensitive material layer, and prints on flexible substrates；Support member 104 are used for providing deformation space to pressure transducer 105, thus strengthening pressure sensitive sensitivity.Capacitance sensor 102 and pressure Force transducer 105 is both needed to be electrically connected to respective handling circuit by wire, and this is common knowledge, therefore in figure is not shown；In addition, Connector between above layers is also prior art it is achieved that being by gluing knot between such as some layers, some are then Stacked by sedimentation, different bondings, stack manner do not affect this utility model and implement, and therefore repeat no more.

Additionally, the first inductive layer is not limited to capacitance touch button sensor, it can also be fingerprint Identification sensor.

Shown in Figure 2, it is cell phone apparatus 200 example that a kind of application is combined touch controlled key, in this cell phone apparatus 200 In, shell 201 is used for appearance and modeling, structure is fixed and the protection of internal part；Shell 201 front openings are used for placing display Screen 202；In the bottom in shell 201 front, compound touch controlled key 100 is installed, for the HOME key as mobile phone.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model Protection domain within.

Claims

1. a kind of compound touch controlled key, include capacitance sensor and pressure transducer it is characterised in that described button to Under be followed successively by the first inductive layer, and the second inductive layer；Wherein said first inductive layer includes dielectric layer successively and electric capacity passes Sensor；Described second inductive layer is a lamination force sensor layer.

2. it is combined touch controlled key as claimed in claim 1 it is characterised in that described dielectric layer is glass cover-plate and/or polaroid.

3. it is combined touch controlled key as claimed in claim 1 it is characterised in that described capacitance sensor includes matrix and fixes One on matrix or a plurality of capacitive sensing electrode.

4. it is combined touch controlled key as claimed in claim 3 it is characterised in that described matrix is PCB substrate；Described capacitive sensing Electrode is the Copper Foil sensor being arranged on PCB.

5. it is combined touch controlled key as claimed in claim 3 it is characterised in that above-mentioned matrix one side arranges capacitive sensing electrode, separately Simultaneously it is fitted with pressure transducer layer.

6. it is combined touch controlled key as claimed in claim 1 it is characterised in that described pressure transducer layer includes a flexible substrate, And or a plurality of varistor being printed thereon.

7. it is combined touch controlled key as claimed in claim 6 it is characterised in that described varistor adopts composite conductor material system Make, and described varistor one full-bridge circuit of every four compositions, to form good pressure sensitive.

8. it is combined touch controlled key as claimed in claim 1 it is characterised in that the lower section of described pressure transducer layer is additionally provided with Support member, support member is generally arranged at the local of pressure transducer layer, from local, pressure transducer is supported.