CN110267143A - A kind of touch detecting apparatus and earphone - Google Patents
A kind of touch detecting apparatus and earphone Download PDFInfo
- Publication number
- CN110267143A CN110267143A CN201910554972.8A CN201910554972A CN110267143A CN 110267143 A CN110267143 A CN 110267143A CN 201910554972 A CN201910554972 A CN 201910554972A CN 110267143 A CN110267143 A CN 110267143A
- Authority
- CN
- China
- Prior art keywords
- capacitance type
- type sensor
- metal
- deformation region
- capacitance
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Abstract
The invention discloses a kind of touch detecting apparatus and earphone, which includes: the metal shell for being provided with Metal Deformation region；The capacitance type sensor of the preset quantity of the inside of metal shell is set, for two pole plates respectively with Metal Deformation region as corresponding capacitor；The single-chip microcontroller being connect with capacitance type sensor, for detecting the capacitance of the corresponding capacitor of each capacitance type sensor；When touching the Metal Deformation region of metal shell due to user in the present invention, Metal Deformation region can deformation occurs that the spacing of Metal Deformation region and capacitance type sensor is caused to change, so that the capacitor of the corresponding capacitor of capacitance type sensor changes, detection using single-chip microcontroller to the capacitance of the capacitor, the capacitance variations of the capacitor can be measured, so that it is determined that user touches the gesture in Metal Deformation region, realize the touch sensing of metal shell, pursuit of the visual field and consumer of Widening Design person to personalized product.
Description
Technical field
The present invention relates to touch sensing technical field, in particular to a kind of touch detecting apparatus and earphone.
Background technique
It with the universal of intelligent audio product and promotes, function is also stronger and stronger.Meanwhile to intelligent audio class product
Performance and individual requirement it is also higher and higher.For audio product, traditional volume increase and decrease and song selection are all to pass through ear
Key as shown in Figure 1 is set on machine shell to be controlled, due to its feel and service life defect, came into vogue in recent years it is non-by
Keyed mode.
It is directed to the touch sensing (touch detection) of non-keying type at present, mainstream is all the touch sensing side of non-metal shell
Case, as in traditional capacitance touch sensing solutions, using sensor (capacitance type sensor) and the finger of user as electricity
Hold two pole plates, user by finger proximity sensor can be changed sensor capacitor, allow detection device by with
Touch sensing is realized in the detection of subtle capacitance variations caused by the finger proximity sensor of family.Such scheme is arranged so that outer
Metal component on shell can greatly reduce touch effect, therefore the shell of product is often limited in non-metallic material, makes product
Metal-like has been lacked, has been difficult meet the needs of modern is to personalization.
Therefore, the touch sensing of metal shell how is realized, so that the touch sensing of non-keying type is no longer limited to
Non-metal shell scene, pursuit of the visual field and consumer of Widening Design person to personalized product are urgently to be solved now ask
Topic.
Summary of the invention
The object of the present invention is to provide a kind of touch detecting apparatus and earphones to be made with realizing the touch sensing of metal shell
The touch sensing for obtaining non-keying type is no longer limited to non-metal shell scene, and the visual field of Widening Design person and consumer are to personalization
The pursuit of product.
In order to solve the above technical problems, the present invention provides a kind of touch detecting apparatus, comprising:
It is provided with the metal shell in Metal Deformation region；
The capacitance type sensor of the preset quantity of the inside of the metal shell is set, for respectively with the gold
Belong to two pole plates of the deformation region as corresponding capacitor；Wherein, the capacitance type sensor and the metal shell is non-
The position in Metal Deformation region is relatively fixed and does not connect with the Metal Deformation zone conducts current, each capacitance type sensor
The orthographic projection of detection faces plane locating for the inner surface in the Metal Deformation region be respectively positioned in the Metal Deformation region；
The single-chip microcontroller being connect with the capacitance type sensor, for detecting the corresponding capacitor of each capacitance type sensor
The capacitance of device.
Optionally, device further include: pcb board；
Wherein, the capacitance type sensor be arranged in the pcb board the first face and the first face of the pcb board with it is described
The inner surface in Metal Deformation region is oppositely arranged.
Optionally, the area Pu Tong is set in the detection zone in the first face of the pcb board, and the paving copper in the area Pu Tong is made
It is connect for reference with the single-chip microcontroller；Wherein, the area Pu Tong is not contacted with the detection faces of the capacitance type sensor, described
Detection zone is the area where the orthographic projection of inner surface plane locating for the first face of the pcb board in the Metal Deformation region
Domain.
Optionally, the gap between the area Pu Tong and the detection faces of the adjacent capacitance type sensor and two it is adjacent
The capacitance type sensor detection faces between gap be preset length；Wherein, the preset length is the pcb board
Plate thickness.
Optionally, the capacitance type sensor be embedded in the pcb board and the detection faces of the capacitance type sensor with
First face of the pcb board is in the same plane.
Optionally, the detection faces of each capacitance type sensor with the Metal Deformation region that deformation occurs
Inner surface is parallel, and the interior table of the detection faces of each capacitance type sensor and the Metal Deformation region that deformation occurs
The spacing in face is 0.2mm.
Optionally, the Metal Deformation region is specially aluminum alloy material.
Optionally, the single-chip microcontroller is also used to the capacitance according to the corresponding capacitor of each capacitance type sensor,
Determine touch gestures.
Optionally, the device further include:
It is connect main controller with the single-chip microcontroller, for sending touch gestures signal according to the single-chip microcontroller, is executed corresponding
Control operation.
In addition, the present invention also provides a kind of earphones, comprising: touch detecting apparatus as described in any one of the above embodiments.
A kind of touch detecting apparatus provided by the present invention, comprising: be provided with the metal shell in Metal Deformation region；Setting
In the capacitance type sensor of the preset quantity of the inside of metal shell, for respectively with Metal Deformation region as corresponding
Two pole plates of capacitor；Wherein, the position of the nonmetallic deformation region of capacitance type sensor and metal shell it is relatively fixed and
It is not connect with Metal Deformation zone conducts current, the detection faces of each capacitance type sensor are put down locating for the inner surface in Metal Deformation region
The orthographic projection in face is respectively positioned in Metal Deformation region；The single-chip microcontroller being connect with capacitance type sensor, for detecting each electricity
The corresponding capacitor of capacity sensor；
As it can be seen that Metal Deformation region can deformation occurs when user touches the Metal Deformation region of metal shell in the present invention
The spacing of Metal Deformation region and capacitance type sensor is caused to change, so that the electricity of the corresponding capacitor of capacitance type sensor
Appearance changes, and the detection using single-chip microcontroller to the capacitance of the capacitor can measure the capacitance variations of the capacitor, from
And determine that user touches the gesture in Metal Deformation region, realizes the touch sensing of metal shell, so that the touch of non-keying type passes
Sense is no longer limited to non-metal shell scene, pursuit of the visual field and consumer of Widening Design person to personalized product.In addition, this
Invention additionally provides a kind of earphone, equally has above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of key setting on earphone in the prior art；
Fig. 2 is a kind of schematic cross-section of touch detecting apparatus provided by the embodiment of the present invention；
Fig. 3 is that the touch deformation in Metal Deformation region in another kind touch detecting apparatus provided by the embodiment of the present invention is shown
It is intended to；
Fig. 4 is that the material in Metal Deformation region in another kind touch detecting apparatus provided by the embodiment of the present invention requires to show
It is intended to；
Fig. 5 is the technique and design in Metal Deformation region in another kind touch detecting apparatus provided by the embodiment of the present invention
It is required that schematic diagram；
Fig. 6 is the processing assembling schematic diagram of another kind touch detecting apparatus provided by the embodiment of the present invention；
Fig. 7 is the top view of another kind touch detecting apparatus provided by the embodiment of the present invention；
Fig. 8 is a kind of capacitor waveform diagram of touch detecting apparatus provided by the embodiment of the present invention；
Fig. 9 is the circuit connection schematic diagram of touch detecting apparatus shown in Fig. 7.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 2, Fig. 2 is a kind of schematic cross-section of touch detecting apparatus provided by the embodiment of the present invention.The touching
Touching detection device may include:
It is provided with the metal shell 1 in Metal Deformation region 11；
The capacitance type sensor 2 of the preset quantity of the inside of metal shell 1 is set, for respectively with Metal Deformation
Two pole plates of the region 11 as corresponding capacitor；Wherein, the nonmetallic deformation area of capacitance type sensor 2 and metal shell 1
The position in domain 12 is relatively fixed and is not conductively connected with Metal Deformation region 11, and the detection faces of each capacitance type sensor 2 are in gold
The orthographic projection for belonging to plane locating for the inner surface of deformation region 11 is respectively positioned in Metal Deformation region 11；
The single-chip microcontroller 3 being connect with capacitance type sensor 2, for detecting the corresponding capacitor of each capacitance type sensor 2
Capacitance.
It is understood that the purpose of the present embodiment can be by the metal of each capacitance type sensor 2 and metal shell 1
Deformation region 11 constitutes capacitors respectively as two pole plates, as shown in figure 3, when user is between hanging (200um as shown in Figure 3
Gap) when being placed on the Metal Deformation region 11 (conductive object) of the top of capacitance type sensor 2 and applying downward pressure, Metal Deformation
Region 11 can generate deformation (Δ H as shown in Figure 3), make it closer to capacitance type sensor 2, i.e. capacitance type sensor 2 is corresponding
Spacing (the capacitive sensing of two pole plates of capacitor (capacitor of capacitance type sensor 2 and the composition of Metal Deformation region 11)
Spacing between the detection faces of device 2 and the inner surface in Metal Deformation region 11) it changes, keep capacitance type sensor 2 corresponding
The capacitor of capacitor changes, the capacitance for the corresponding capacitor of capacitance type sensor 2 for causing single-chip microcontroller 3 (MCU) to detect
It changes, so as to be realized using single-chip microcontroller 3 to the detection of the capacitance of the corresponding capacitor of each capacitance type sensor 2
The touch sensing of metal shell 1.
That is, according to the formula of following capacitor it is found that the spacing of two pole plates when capacitor changes, capacitor
Value just has corresponding variation.Small capacitance change can be accurately measured using single-chip microcontroller 3, small capacitance change can
With the miniature deformation of corresponding two pole plate spacing, the i.e. deformation in Metal Deformation region.When there is pressure application in Metal Deformation region 11,
D in formula reduces, and capacitor can become larger.By adjusting the different thresholding of gain (Gain) value in capacitance type sensor 2 or setting
It is worth, upon application of pressure the meeting of capacitance type sensor 2 trigger threshold first of face.
Wherein, C is capacitance, εrThe relative dielectric coefficient of medium, ε between two pole plates0For vacuum Jie
Electric constant (8.854 × 10-12F/m), A is the area coverage of two pole plates, such as the area of the detection faces of capacitance type sensor 2, d
For the spacing of two pole plates.
Corresponding, the Metal Deformation region 11 in metal shell 1 in the present embodiment can be grounded, i.e., single-chip microcontroller can be examined
The capacitance of each capacitance type sensor 2 over the ground is surveyed, as shown in figure 3, the Metal Deformation region 11 of metal shell 1 and nonmetallic shape
When change region 12 is metal material, metal shell 1 directly can be grounded (GND).
Specifically, the metal shell 1 in the present embodiment can be provided with metal material being capable of the metal that deformation occurs
The shell of deformation region 11.For the specific material in the Metal Deformation region 11 of metal shell 1, can voluntarily be set by designer
It sets, if theoretically metal plate (Metal Deformation region 11) pressure very little just can generate very big deformation quantity, touches effect
It is good；Pressure size determines the feel and experience of touch, and deformation quantity determines the sensitivity and gesture identification rate of touch, for example,
Guarantee product appearance and reliability, and meet and be easy to deformation requirement, as shown in figure 4, can be according to metal shape shown in table 1
Become the corresponding relationship of 11 pressure of region (F) and deformation quantity (Δ H), selects the material in Metal Deformation region 11, can such as select
Select aluminum alloy material, existing aluminium is easy to deformation again and has the rigidity of alloy.
The pressure of 1 metal plate of table and the mapping table of deformation quantity
| Pressure F | Deformation quantity Δ H |
| 25g | ≥5um |
| 50g | ≥10um |
| 100g | ≥20um |
| 200g | ≥40um |
Likewise, in metal shell 1 can not the nonmetallic deformation region 12 that deformation occurs material type, can be with
By designer's self-setting, metal material can be set to, metal material such as identical with Metal Deformation region 11；It can also be with
Other non-metallic materials are set as, the present embodiment does not do any restrictions to this.
It should be noted that the capacitance type sensor 2 in the present embodiment can be in the gold of the inside of metal shell 1 setting
Belong to thin slice, and the face (detection faces) that the sheet metal is opposite with the Metal Deformation region 11 of metal shell 1 is in Metal Deformation region
The orthographic projection of plane locating for 11 inner surface is respectively positioned in Metal Deformation region 11, that is to say, that the detection of capacitance type sensor 2
When face is parallel with the inner surface in Metal Deformation region 11, capacitance type sensor 2 is covered with 11 the two pole plates of Metal Deformation region
Capping product can be the area of detection faces；And the position of the nonmetallic deformation region 12 of capacitance type sensor 2 and metal shell 1
It is relatively fixed and be not conductively connected with Metal Deformation region 11, i.e., what deformation occurs in capacitance type sensor 2 and metal shell 1
Metal Deformation region 11 is not directly contacted with, and avoids leading between capacitance type sensor 2 and the two pole plates of Metal Deformation region 11
Electrical connection, and the distance between capacitance type sensor 2 and Metal Deformation region 11 can be with the deformation in Metal Deformation region 11
Correspondence changes.
It is corresponding, to the detection faces of capacitance type sensor 2 in this present embodiment and the Metal Deformation area that deformation occurs
Two of the capacitor that the setting of the distance between the inner surface in domain 11, i.e. capacitance type sensor 2 and Metal Deformation region 11 are constituted
The initial spacing of pole plate is arranged, can be by designer's self-setting, as shown in figure 5, the inspection of capacitance type sensor 2 can be set
Survey face (face Sensor of such as pcb board) is parallel with inner surface (face B) in Metal Deformation region 11 (metal plate) that deformation occurs
And spacing is 0.2mm (200um), and tolerance is interior in 0.05mm (50um), and enable the Metal Deformation region 11 of metal shell 1
Flatness is less than equal to 0.1mm (100um).
Specifically, to the specific setting position of capacitance type sensor 2 in this present embodiment, it can be by designer voluntarily
In advance setting, capacitance type sensor 2 can be such as arranged on the pcb board face opposite with the inner surface in Metal Deformation region 11, i.e.,
If the capacitance type sensor 2 of quantity can be arranged at the first face and Metal Deformation region 11 of the first face of pcb board and pcb board
Inner surface be oppositely arranged.Corresponding, pcb board can be fixedly connected with the nonmetallic deformation region 12 of metal shell 1, to guarantee
The capacitance type sensor 2 being arranged on first face of pcb board and the position of nonmetallic deformation region 12 of metal shell 1 are opposite solid
Fixed, pcb board as shown in Figure 6 can pass through glue connection with the nonmetallic deformation region 12 of metal shell 1.
Further, for the ease of the inner surface of the detection faces and Metal Deformation region 11 of setting capacitance type sensor 2
Spacing, as shown in Figures 3 to 6, capacitance type sensor 2 can be embedded in pcb board and the detection faces of capacitance type sensor 2 with
The first face (face Sensor) of pcb board is in the same plane.In order to save pcb board the first face space, can be by single-chip microcontroller 3
Second face of pcb board is set with other elements (such as connector).
It is corresponding, can also in the first face of the pcb board of the opposite covering in the Metal Deformation region 11 of metal shell 1 capacitor
Gap between formula sensor 2 do paving copper be designed as capacitance type sensor 2 reference connect with single-chip microcontroller 3, i.e. the present embodiment
Pu Tongqu can be set in detection zone in first face of middle pcb board, the paving copper (copper foil) in the area Pu Tong can be used as reference
Ground is connect with single-chip microcontroller 3；Wherein, the area Pu Tong is not contacted with the detection faces of capacitance type sensor 2, and detection zone is Metal Deformation area
Region where the orthographic projection of the inner surface in domain 11 plane locating for the first face of pcb board.As shown in fig. 7, the first face of pcb board
In 4 area Ge Putong of setting between No. 8 capacitance type sensors 2 (Sensor1-Sensor8), paving copper is as upper in 4 areas Ge Putong
(Guard) is connect with single-chip microcontroller 3 with stating the reference of the capacitance type sensor 2 of No. 8 capacitance type sensors 2.
Wherein, to the specific setting number and shape of capacitance type sensor 2 and the area Pu Tong in this present embodiment, Ke Yiyou
Designer is according to usage scenario and user demand self-setting, as shown in fig. 7, the detection zone in the first face of pcb board is
When round, 9 capacitance type sensors 2 (Sensor0-Sensor8) and 4 areas Ge Putong can be set, i.e. preset quantity is 9；For
Interference is reduced, it can gap between the area Pu Tong and the detection faces of adjacent capacitance type sensor 2 and two adjacent capacitors
Gap between the detection faces of formula sensor 2 is preset length (plate thickness of such as pcb board), such as in the first face of pcb board
It, can be as shown in fig. 7,9 capacitance type sensors 2 (Sensor0-Sensor8) of setting and 4 paving copper when detection zone is round
Area, first capacitor formula sensor 2 (Sensor0) are shaped to using the center of detection zone as the circle of the radius in the center of circle,
The shape in the second to the 9th capacitance type sensor 2 (Sensor1-Sensor8) and 4 areas Ge Putong is disposed as arc fan, and each
The center of circle of two circular arcs (orthodrome and small arc-shaped) of arc fan is at the center of detection zone；Second capacitance type sensor 2
(Sensor1), the 4th capacitance type sensor 2 (Sensor3), the 6th capacitance type sensor 2 (Sensor5), the 8th condenser type pass
The difference of the radius of the roundlet arc radius and first capacitor formula sensor 2 in sensor 2 (Sensor7) and four areas Ge Putong is pcb board
Plate thickness, the large circular arc radius of the roundlet arc radius of third capacitance type sensor 2 (Sensor2) and the second capacitance type sensor 2
Difference, the roundlet arc radius of the 5th capacitance type sensor 2 (Sensor4) and the 4th capacitance type sensor 2 large circular arc radius it
The difference of the large circular arc radius of difference, the roundlet arc radius of the 7th capacitance type sensor 2 (Sensor6) and the 6th capacitance type sensor 2
It is equal with the difference of the large circular arc radius of the roundlet arc radius and the 8th capacitance type sensor 2 of the 9th capacitance type sensor 2 (Sensor8)
For the plate thickness of pcb board；The center of circle of two circular arcs of two circular arcs and the second capacitance type sensor 2 of third capacitance type sensor 2
Angle is identical, and two circular arcs of the 5th capacitance type sensor 2 are identical as the central angle of two circular arcs of the 4th capacitance type sensor 2,
Two circular arcs of the 7th capacitance type sensor 2 are identical as the central angle of two circular arcs of the 6th capacitance type sensor 2, the 9th capacitor
Two circular arcs of formula sensor 2 are identical as the central angle of two circular arcs of the 8th capacitance type sensor 2, the second to the 9th condenser type
Sensor 2 is adjacent with the area Liang Geputong, and spacing gap is the plate thickness of pcb board.
It is corresponding, above-mentioned second capacitance type sensor 2, the 4th capacitance type sensor 2, the 6th capacitance type sensor 2 and
The large circular arc radius of eight capacitance type sensors 2 can be equal, third capacitance type sensor 2, the 5th capacitance type sensor the 2, the 7th
Capacitance type sensor 2 and the large circular arc radius in the 9th area the Ge Putong of capacitance type sensor 2 and 4 can be equal, to facilitate on pcb board
Capacitance type sensor 2 and the area Pu Tong setting.
Specifically, for pcb board plate thickness be arranged, can by designer's self-setting, such as can be set 1mm with
On, the plate thickness that pcb board is such as arranged is 1.6mm, and the present embodiment does not do any restrictions to this.
It is understood that single-chip microcontroller 3 can the corresponding capacitor of capacitance type sensor 2 to preset quantity in the present embodiment
The detection of the capacitance of device, for single-chip microcontroller 3 to the specific side of detection of the capacitance of the corresponding capacitor of each capacitance type sensor 2
Formula can be used and be realized with the same or similar mode of capacitance method in traditional capacitance touch sensing solutions, this reality
It applies example and does not do any restrictions to this.
Specifically, the capacitance for the preset quantity that the single-chip microcontroller 3 in the present embodiment can directly will test is sent to
Main controller, to be identified using main controller to touch gestures.What the single-chip microcontroller 3 in the present embodiment can also be obtained according to detection
The capacitance of the corresponding capacitor of each capacitance type sensor 2, determines touch gestures；As single-chip microcontroller 3 can be according to preset quantity
The corresponding capacitor of capacitance type sensor 2 respective capacitance waveform as shown in Figure 8 timing and amplitude judge gesture
Movement (touch gestures) be sliding or click, and sliding direction (with this identify judgement be slide back and forth, slide up and down and
Be rotated both clockwise and counterclockwise) and click the frequency (with this identify judgement be click, double-click, three hit and long-pressing).For this reality
It applies single-chip microcontroller 3 in example and the concrete mode of touch gestures is determined according to the capacitance of the corresponding capacitor of each capacitance type sensor 2
With the specific setting type of touch gestures, capacitance waveform can detected by designer's self-setting, such as single-chip microcontroller 3
Start timing when reaching click deformation (such as Δ H=10) the corresponding capacitance in Metal Deformation region 11, after starting timing
Preset time period in click the corresponding capacitance of deformation duration and frequency of occurrence again, determine that touch gestures are click
(such as click, double-click, three hit or long-pressing)；Single-chip microcontroller 3 is detecting that capacitance waveform reaches the slide-shaped of Metal Deformation region 11
When becoming (such as Δ H=5) corresponding capacitance and not up to clicking the corresponding capacitance of deformation, passed according to the condenser type of preset quantity
The appearance sequence of the capacitance waveform in sensor 2 determines that (such as forward slip is slided backward, slid up touch gestures for sliding
Dynamic, slide downward, slid clockwise or counterclockwise sliding).The present embodiment does not do any restrictions to this.
Corresponding, device provided by the present embodiment can also include: to connect main controller with single-chip microcontroller 3, for according to list
Piece machine 3 sends touch gestures signal, executes corresponding control operation.Such as single-chip microcontroller 3 can pass through interrupt signal or I2C poll
Mode the determining corresponding signal of touch gestures (touch gestures signal) is transferred to master control borad, the main controller of master control borad is (main
Control chip) the corresponding control operation of touch gestures signal execution based on the received, to push product to realize corresponding function.For
Main controller sends touch gestures signal according to single-chip microcontroller 3, executes the detailed process of corresponding control operation, i.e. touch gestures signal
The specific setting of corresponding control operation, can received by designer's self-setting, such as main controller on earphone
After clicking corresponding touch gestures signal, the music and the controls operation such as receive calls that broadcasting or pause play can be executed,
I.e. user, which can use, the functions such as clicks realization broadcasting or pause and receives calls；User also can use long-pressing realize play or
The functions such as call are cancelled and terminated to pause and refusal, realizes using double-clicking and the functions such as makes a phone call again, using sliding back and forth
It realizes the functions such as upper one or the switching of next song, opens or closes the functions such as active noise reduction using realization is slided up and down, benefit
With the functions such as the increase of realization volume or volume down clockwise or counterclockwise.The present embodiment does not do any restrictions to this.
Specifically, the physical circuit for touch detecting apparatus provided by the present embodiment connects, it can be by designer
Self-setting is such as arranged capacitance type sensor 2 shown in Fig. 7 and the area Pu Tong, can use circuit connection shown in Fig. 9,
U1 is single-chip microcontroller 3 in Fig. 9, and PAD (pad) is No. 8 capacitance type sensors 2 (Sensor1-Sensor8) and Guard (with reference to ground),
Single-chip microcontroller 3 is connected to master control borad by I2C (I2C_SDA and I2C_SCL) and interrupt signal (TOUCH_INT), and 9 condenser types pass
Capacitance is transferred to single-chip microcontroller 3 by sensor 2 (Sensor0-Sensor8), and the main controller in master control borad passes through I2C poll single-chip microcontroller
3 operate control accordingly.
In the present embodiment, when user touches the Metal Deformation region 11 of metal shell 1, shape can occur for Metal Deformation region 11
Change causes Metal Deformation region 11 and the spacing of capacitance type sensor 2 to change, so that the corresponding capacitor of capacitance type sensor 2
The capacitor of device changes, and the detection using single-chip microcontroller 3 to the capacitance of the capacitor can measure the capacitor of the capacitor
Variation realizes the touch sensing of metal shell 1, so that non-key so that it is determined that user touches the gesture in Metal Deformation region 11
The touch sensing of formula is no longer limited to 1 scene of non-metal shell, and the visual field of Widening Design person and consumer are to personalized product
It pursues.
In addition, the embodiment of the invention also provides a kind of earphones, comprising: the dress of the touch detection as provided by above-described embodiment
It sets.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For earphone disclosed in embodiment
Speech, since it is corresponding with device disclosed in embodiment, so being described relatively simple, related place is referring to device part explanation
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
A kind of touch detecting apparatus provided by the present invention and earphone are described in detail above.It is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally
The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair
, can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention
In the protection scope that benefit requires.
Claims (10)
1. a kind of touch detecting apparatus characterized by comprising
It is provided with the metal shell in Metal Deformation region；
The capacitance type sensor of the preset quantity of the inside of the metal shell is set, for respectively with the metal shape
Become two pole plates of the region as corresponding capacitor；Wherein, the capacitance type sensor and the metal shell is nonmetallic
The position of deformation region is relatively fixed and does not connect with the Metal Deformation zone conducts current, the inspection of each capacitance type sensor
The orthographic projection of survey face plane locating for the inner surface in the Metal Deformation region is respectively positioned in the Metal Deformation region；
The single-chip microcontroller being connect with the capacitance type sensor, for detecting the corresponding capacitor of each capacitance type sensor
Capacitance.
2. touch detecting apparatus according to claim 1, which is characterized in that further include: pcb board；
Wherein, the capacitance type sensor be arranged in the pcb board the first face and the pcb board the first face and the metal
The inner surface of deformation region is oppositely arranged.
3. the touch detecting apparatus according to shown in claim 2, which is characterized in that the detection zone in the first face of the pcb board
The area Pu Tong is set in domain, and the paving copper in the area Pu Tong, which is used as, to be connect with reference to ground with the single-chip microcontroller；Wherein, the area Pu Tong with
The detection faces of the capacitance type sensor do not contact, and the detection zone is the inner surface in the Metal Deformation region described
Region where the orthographic projection of plane locating for first face of pcb board.
4. touch detecting apparatus according to claim 3, which is characterized in that the area Pu Tong and the adjacent condenser type
Gap between the detection faces of sensor and the gap between the detection faces of two adjacent capacitance type sensors are pre-
If length；Wherein, the preset length is the plate thickness of the pcb board.
5. touch detecting apparatus according to claim 2, which is characterized in that the capacitance type sensor is embedded in described
In pcb board and the first face of the detection faces of the capacitance type sensor and the pcb board is in the same plane.
6. touch detecting apparatus according to claim 1, which is characterized in that the detection faces of each capacitance type sensor
It is parallel with the inner surface in the Metal Deformation region that deformation occurs, and the detection faces of each capacitance type sensor with
The spacing of the inner surface in the Metal Deformation region that deformation occurs is 0.2mm.
7. touch detecting apparatus according to claim 1, which is characterized in that the Metal Deformation region is specially aluminium alloy
Material.
8. touch detecting apparatus according to any one of claims 1 to 7, which is characterized in that the single-chip microcontroller is also used to root
According to the capacitance of the corresponding capacitor of each capacitance type sensor, touch gestures are determined.
9. touch detecting apparatus according to claim 8, which is characterized in that further include:
It is connect main controller with the single-chip microcontroller, for sending touch gestures signal according to the single-chip microcontroller, executes corresponding control
Operation.
10. a kind of earphone characterized by comprising touch detecting apparatus as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554972.8A CN110267143A (en) | 2019-06-25 | 2019-06-25 | A kind of touch detecting apparatus and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554972.8A CN110267143A (en) | 2019-06-25 | 2019-06-25 | A kind of touch detecting apparatus and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110267143A true CN110267143A (en) | 2019-09-20 |
Family
ID=67921326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910554972.8A Pending CN110267143A (en) | 2019-06-25 | 2019-06-25 | A kind of touch detecting apparatus and earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110267143A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031431A (en) * | 2019-12-19 | 2020-04-17 | 歌尔科技有限公司 | Earphone and head-mounted device |
| CN112130002A (en) * | 2020-09-01 | 2020-12-25 | 珠海普林芯驰科技有限公司 | Capacitance sensing device, working method thereof and electronic equipment |
| CN112492435A (en) * | 2020-11-06 | 2021-03-12 | 珠海普林芯驰科技有限公司 | Side-pressure type capacitance sensing device, working method thereof and electronic equipment |
| CN115150701A (en) * | 2021-03-31 | 2022-10-04 | 苹果公司 | Force activated earphone |
| US11910149B2 (en) | 2018-09-21 | 2024-02-20 | Apple Inc. | Force-activated earphone |
| US11917354B2 (en) | 2018-09-21 | 2024-02-27 | Apple Inc. | Force-activated earphone |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386006A (en) * | 2011-08-29 | 2012-03-21 | 江苏惠通集团有限责任公司 | Key panel and key system |
| CN203872153U (en) * | 2014-04-25 | 2014-10-08 | 比亚迪股份有限公司 | Touch key device |
| CN105790747A (en) * | 2016-02-25 | 2016-07-20 | 广东美的厨房电器制造有限公司 | Touch key triggering detection method and triggering detection device |
| CN107204763A (en) * | 2016-03-17 | 2017-09-26 | 峰范（北京）科技有限公司 | Metal touch control key strcture |
| CN108491118A (en) * | 2018-06-15 | 2018-09-04 | 珠海普林芯驰科技有限公司 | metal touch device |
-
2019
- 2019-06-25 CN CN201910554972.8A patent/CN110267143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386006A (en) * | 2011-08-29 | 2012-03-21 | 江苏惠通集团有限责任公司 | Key panel and key system |
| CN203872153U (en) * | 2014-04-25 | 2014-10-08 | 比亚迪股份有限公司 | Touch key device |
| CN105790747A (en) * | 2016-02-25 | 2016-07-20 | 广东美的厨房电器制造有限公司 | Touch key triggering detection method and triggering detection device |
| CN107204763A (en) * | 2016-03-17 | 2017-09-26 | 峰范（北京）科技有限公司 | Metal touch control key strcture |
| CN108491118A (en) * | 2018-06-15 | 2018-09-04 | 珠海普林芯驰科技有限公司 | metal touch device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11910149B2 (en) | 2018-09-21 | 2024-02-20 | Apple Inc. | Force-activated earphone |
| US11917354B2 (en) | 2018-09-21 | 2024-02-27 | Apple Inc. | Force-activated earphone |
| US11917355B2 (en) | 2018-09-21 | 2024-02-27 | Apple Inc. | Force-activated earphone |
| CN111031431A (en) * | 2019-12-19 | 2020-04-17 | 歌尔科技有限公司 | Earphone and head-mounted device |
| CN112130002A (en) * | 2020-09-01 | 2020-12-25 | 珠海普林芯驰科技有限公司 | Capacitance sensing device, working method thereof and electronic equipment |
| CN112492435A (en) * | 2020-11-06 | 2021-03-12 | 珠海普林芯驰科技有限公司 | Side-pressure type capacitance sensing device, working method thereof and electronic equipment |
| CN112492435B (en) * | 2020-11-06 | 2023-03-10 | 珠海普林芯驰科技有限公司 | Side pressure type capacitance sensing device, working method thereof and electronic equipment |
| CN115150701A (en) * | 2021-03-31 | 2022-10-04 | 苹果公司 | Force activated earphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110267143A (en) | A kind of touch detecting apparatus and earphone | |
| US11907483B2 (en) | Wearing detection apparatus and method, and earphone | |
| US9110545B2 (en) | Apparatus and associated methods | |
| US11601756B2 (en) | Electronic devices with orientation sensing | |
| KR101365966B1 (en) | Simplified mechanical design for an acoustic touch screen | |
| WO2015078350A1 (en) | Terminal | |
| WO2005073834A3 (en) | Touch screens | |
| WO2013082838A1 (en) | Capacitive touch button system | |
| US9720588B2 (en) | Mobile terminal and application-controlling method thereof | |
| WO2016192641A1 (en) | Key device manipulation and control method, key device and terminal | |
| WO2013075345A1 (en) | Touch recognition method and device, space mouse and control method thereof | |
| EP3297163B1 (en) | User equipment | |
| WO2013060057A1 (en) | Touch key structure and touch device | |
| US20220197401A1 (en) | Terminal control system and method, and terminal device | |
| CN108200494B (en) | Earphone touch control method and earphone | |
| TW201220163A (en) | to distinguish the contacted objects as conductor or non- conductor based on the variation characteristics of a sensory value generated by the soft sensing layer | |
| CN110212907B (en) | Knob control method, capacitive knob and electrical equipment | |
| CN208298157U (en) | A kind of combined type touch control panel and touch device | |
| CN212061131U (en) | Sensor, signal detection device, and electronic apparatus | |
| WO2020118837A1 (en) | Touch control panel and electronic device | |
| CN112578461B (en) | Key detection device and electronic equipment | |
| CN206271593U (en) | A kind of button and electronic equipment | |
| CN207676314U (en) | A kind of capacitance sensing mechanism | |
| CN205407775U (en) | Touch button device | |
| CN107437710B (en) | Earphone plug and earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |
|
| RJ01 | Rejection of invention patent application after publication |