CN106060747A - Diaphragm assembly defective detection device, loudspeaker and electronic equipment - Google Patents
Diaphragm assembly defective detection device, loudspeaker and electronic equipment Download PDFInfo
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- CN106060747A CN106060747A CN201610374082.5A CN201610374082A CN106060747A CN 106060747 A CN106060747 A CN 106060747A CN 201610374082 A CN201610374082 A CN 201610374082A CN 106060747 A CN106060747 A CN 106060747A
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- vibrating diaphragm
- capacitance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/008—Visual indication of individual signal levels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a diaphragm assembly defective detection device, a loudspeaker and electronic equipment. The device comprises a capacitance measurement unit, a judgment unit, a prompt unit and a power unit, wherein the capacitance measurement unit is set to measure the capacitance of a to-be-detected capacitor formed by the front cover of the loudspeaker and a reinforcing member and output a measurement result for reflecting the size of the capacitance; the judgment unit is set to judge whether the measurement result is in a set range and output a judgment result signal; the prompt unit is set to carry out abnormal diaphragm assembly prompt at least when the judgment result signal is an abnormal signal; and the power unit is set to provide needed voltage for each unit. The device of the invention can judge whether an error for the diaphragm assembly position is in an allowable error range according to the measurement result for reflecting the size of the capacitance, abnormity prompt is carried out if the allowable error range is exceeded, and thus, whether the loudspeaker is a diaphragm assembly defective can be conveniently detected, and the qualified rate for leaving-factory loudspeakers can be improved.
Description
Technical field
The present invention relates to the detection technique field before speaker dispatches from the factory, more particularly it relates to an be used for raising one's voice
The vibrating diaphragm of device assembles inferior detector and assembles speaker that inferior detector mates with this kind of vibrating diaphragm and be provided with this kind
The electronic equipment of speaker.
Background technology
Microspeaker has played highly important effect in the electronic equipments such as mobile phone, such as listen music, see a film and
Playing game etc., the quality of speaker have impact on the audio-video playing function of electronic equipment to a certain extent, is therefore highly desirable to
Complete detection before dispatching from the factory speaker, to ensure that the product satisfied the needs of consumers is the speaker of high-performance, high-quality, enters
And promote Consumer's Experience.
Error is the most inevitably there is, if exceed to a certain degree will shadow for error due to speaker
Ring speaker quality, this kind of speaker should be recovered as substandard products, therefore, above-mentioned dispatch from the factory before detection necessarily include group
The detection of dress substandard products.
At present in the detection carrying out assembling substandard products, maximum difficult point is that vibrating diaphragm assembles the detection of substandard products, because vibrating diaphragm
It is difficult to be tested identification by outward appearance by viscous inclined assembly error, and vibrating diaphragm is glued and speaker operation partially can be caused in instability
State, and then reduce the service life of speaker, if this kind of substandard products are undetected and directly dispatch from the factory, will make under Consumer's Experience
Fall, affects brand value.
Summary of the invention
It is an object of the present invention to provide a kind of being easy to and detect the new technical scheme that vibrating diaphragm assembles substandard products.
According to the first aspect of the invention, it is provided that a kind of vibrating diaphragm assembles inferior detector, comprising:
Capacitance measurement unit, is arranged to measure the capacitance of testing capacitor, and output reflects described capacitance size
Measurement result, wherein, stiffener that two pole plates of described testing capacitor are respectively on the vibrating diaphragm of speaker and speaker
Protecgulum；
Judging unit, is arranged to judge that described measurement result, whether in set point, exports judging result signal, its
In, in this way, the most described judging result signal assembles normal normal signal for characterizing vibrating diaphragm, and as no, the most described judged result is believed
Number assemble abnormal abnormal signal for characterizing vibrating diaphragm；
Tip element, is arranged to carry out vibrating diaphragm according at least to described abnormal signal and assembles abnormal prompting；And,
Power subsystem, is arranged to the voltage needed for described capacitance measurement unit, judging unit and Tip element provide.
Optionally, described capacitance measurement unit includes that operational amplifier and fixed capacity, described power subsystem are set
Voltage is measured for providing to described operational amplifier；
Described fixed capacity is connected as the inverting input of anti-phase input impedance with described operational amplifier, described computing
The inverting input of amplifier leads to the first connection end of a pole plate for connecting described testing capacitor, described computing
The outfan of amplifier leads to the second connection end of another pole plate for connecting described testing capacitor, and described electric capacity is surveyed
Amount unit exports described measurement result via the outfan of described operational amplifier.
Optionally, one end of described fixed capacity is connected with the inverting input of described operational amplifier, another terminates
Ground；The in-phase input end of described operational amplifier is connected with measuring voltage input end.
Optionally, described measurement result reflects the voltage of described capacitance size, and described judging unit includes and door electricity
Road and two voltage comparators are arranged to described respectively as upper limit comparator and lower limit comparator, described power subsystem
The in-phase input end of upper limit comparator provides the upper voltage limit of corresponding described set point and anti-phase to described lower limit comparator
Input provides the lower voltage limit of corresponding described set point；
The inverting input of the measurement result outfan of described capacitance measurement unit and described upper limit comparator and described under
Limit comparator in-phase input end connect, the outfan of described upper limit comparator and the outfan of described lower limit comparator each and
One input of described AND circuit connects, and the outfan of described AND circuit is arranged to be used for exporting described judged result
Signal.
Optionally, described judging unit include analog-digital converter and processor, described analog-digital converter be arranged to by
The measurement result of analog quantity is converted to the measurement result of digital quantity；Described processor is arranged to judge the measurement of described digital quantity
Result, whether in set point, exports described judging result signal.
Optionally, described Tip element be also configured to according to described normal signal carry out vibrating diaphragm assemble carry normally
Show.
Optionally, during described Tip element includes auditory tone cues electric circuit, light cue circuit and display reminding circuit extremely
Few one.
According to the second aspect of the invention, it is provided that a kind of speaker, it is relevant to vibrating diaphragm assembling position that it is formed with capacitance
Testing capacitor, wherein, the protecgulum of described speaker is a capacitor plate of described testing capacitor, described speaker
Stiffener on vibrating diaphragm be another capacitor plate of described testing capacitor, described protecgulum and described stiffener be provided with for
Connect described testing capacitor, the connector measured with the capacitance to described testing capacitor.
According to the third aspect of the invention we, it is provided that a kind of electronic equipment, it is provided with institute according to a second aspect of the present invention
The speaker stated.
Identify vibrating diaphragm glued inclined assembly error it was found by the inventors of the present invention that prior art exists to check, enter
And cause vibrating diaphragm to assemble the problem that substandard products come into the market to circulate.Therefore, the present invention is to be realized technical assignment or to solve
Certainly technical problem is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technology
Scheme.
One of the present invention has the beneficial effects that, vibrating diaphragm of the present invention assembles inferior detector and can measure by speaker
The capacitance of the electric capacity to be detected that the stiffener on the vibrating diaphragm of protecgulum and speaker is constituted, and according to the survey of reflection capacitance size
Whether the error of amount result judgement vibrating diaphragm assembling position is in error allowed band, as then carried out different beyond this error allowed band
Often prompting, and then can detect whether speaker is that vibrating diaphragm assembles substandard products easily, improve the qualification rate of the speaker that dispatches from the factory.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and
Advantage will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part that constitutes description shows embodiments of the invention, and even
With its explanation together for explaining the principle of the present invention.
Fig. 1 is the frame principle figure of a kind of embodiment assembling inferior detector according to vibrating diaphragm of the present invention；
Fig. 2 is a kind of circuit theory diagrams implementing structure of capacitance measurement unit in Fig. 1；
Fig. 3 is a kind of circuit theory diagrams implementing structure of judging unit in Fig. 1；
Fig. 4 is a kind of circuit theory diagrams implementing structure of Tip element in Fig. 1；
Fig. 5 is the structural representation of a kind of embodiment according to speaker of the present invention.
100-vibrating diaphragm assembles inferior detector；101-capacitance measurement unit；
102-judging unit；103-Tip element；
104-power subsystem；A-operational amplifier；
C-fixed capacity；Vin-measures voltage input end；
Cx-testing capacitor；J1-first connects end；
J2-second connects end；AP1-upper limit comparator；
AP2-lower limit comparator；AG-AND circuit；
U103-single pole double throw analog switchs；VCC-positive supply input；
D1031-assembles regular prompt display lamp；D1032-assembles abnormal prompt display lamp；
GND-earth terminal；IN1-gating controls end；
NO1-the first outfan；NC1: the second outfan；
COM1: public input；501-vibrating diaphragm；
502-stiffener；503-protecgulum.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that unless additionally have
Body illustrates, the parts illustrated the most in these embodiments and positioned opposite, the numerical expression of step and numerical value are not intended to this
The scope of invention.
Description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And any restriction applied or use.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of when, described technology, method and apparatus should be considered a part for description.
It is shown here that any occurrence should be construed as merely exemplary with in all examples discussed, and not
It is as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it is further discussed in accompanying drawing subsequently.
The present invention is to solve that prior art cannot be checked and identify the problem that vibrating diaphragm assembles substandard products, it is provided that one can
Verify whether vibrating diaphragm assembling position meets the vibrating diaphragm required and assemble inferior detector easily.
Fig. 1 is the frame principle figure that vibrating diaphragm of the present invention assembles a kind of embodiment of inferior detector.
According to Fig. 1, this vibrating diaphragm assemble inferior detector 100 include capacitance measurement unit 101, judging unit 102,
Tip element 103 and the power subsystem 104 being arranged to above each unit offer required voltage, this required voltage such as includes
Running voltage, measurement voltage, reference voltage etc..
Above-mentioned capacitance measurement unit 101 is arranged to measure the capacitance of testing capacitor, output reflection capacitance size
Measurement result, this measurement result according to use different measuring circuits be likely to be of the different forms of expression, for example, reflect
The voltage of capacitance size, the frequency of oscillation etc. of reflection capacitance size.
Stiffener that two pole plates of this testing capacitor are respectively on the vibrating diaphragm of speaker and the protecgulum of speaker, this says
Bright stiffener and protecgulum are from as conductive material or be provided with conductive layer, owing to protecgulum is in the front operatic tunes of speaker and vibrating diaphragm phase
Right, and stiffener (DOME) may be provided on the surface being positioned at the front operatic tunes of vibrating diaphragm, therefore, is just formed between protecgulum and stiffener
Plane-parallel capacitor.The capacitance of this plane-parallel capacitor, in the case of relative area, dielectric constant are certain, depends on two
Spacing between individual pole plate, and this spacing is the most relevant to vibrating diaphragm assembling position, this explanation is by judging this parallel-plate electricity of reflection
Whether the measurement result of the capacitance size of container, whether in set point, will be capable of the error to vibrating diaphragm assembling position
Test for identification in error allowed band.
This capacitance measurement unit 101 such as can use FM circuit, AC bridge circuit, double-T shaped discharge and recharge network, fortune
Calculate amplifier circuit or charge method measuring circuit etc., wherein, owing to operational amplifier formula circuit can not only overcome pole-changing
Non-linear away from type capacitance type sensor, additionally it is possible to be amplified output signal, therefore, is embodied as of the present invention
In example, capacitance measurement unit 101 uses this kind of operational amplifier formula circuit, and it can connect the anti-phase scaling circuit of formation,
Formation in-phase proportion amplifying circuit can also be connected.
Fig. 2 is the circuit theory diagrams of this kind of operational amplifier formula circuit, specially achieves in-phase proportion and amplifies.
According to Fig. 2, this capacitance measurement unit 101 includes operational amplifier A, fixed capacity C, measures voltage input end
Vin and earth terminal, above-mentioned power subsystem 104 is arranged to provide to this measurement voltage input end Vin measure voltage U and to fortune
Calculate amplifier A and running voltage is provided.This fixed capacity C is connected between earth terminal and the inverting input of operational amplifier A, fortune
The in-phase input end calculating amplifier A is connected with measuring voltage input end Vin, and the inverting input of operational amplifier A leads to use
In the first connection end J1 of the pole plate connecting testing capacitor, the outfan of operational amplifier A leads to treat for connection
Survey the second connection end J2 of another pole plate of capacitor.At testing capacitor CxIt is connected to the first connection end J1 and second connect
Time between end J2, will form in-phase proportion amplifying circuit, capacitance measurement unit 101 just can be via the outfan of operational amplifier A
Output measurement result, this measurement result is the voltage U of reflection capacitance size0。
Form anti-phase scaling circuit if connected, only need to be connected to fixed capacity C to measure voltage input end Vin with
Between inverting input, and by in-phase input end ground connection.
Above-mentioned judging unit 102 is arranged to judge whether the measurement result exported by capacitance measurement unit 101 is setting
In the range of, export judging result signal, this set point correspondence vibrating diaphragm assembling position measurement result in error allowed band
Scope, wherein, in this way, then judging result signal assembles normal normal signal, as no, then judging result signal for characterizing vibrating diaphragm
Abnormal abnormal signal is assembled for characterizing vibrating diaphragm.
This judging unit 102 can use hardware decision circuitry, it would however also be possible to employ the structure that soft or hard combines.
For soft or hard integrated structure, above-mentioned judging unit 102 can include that analog-digital converter and processor (do not show in figure
Go out), this analog-digital converter is arranged to be converted to the measurement result of analog quantity the measurement result of digital quantity, and this processor is set
It is set to judge that the measurement result of this digital quantity, whether in set point, exports judging result signal.This processor is the most single
Sheet machine, MCU etc., here, this analog-digital converter can be integrated in processor together with a chip, it is also possible to be each solely
Vertical chip.The advantage of this kind of structure is can the compatibility inspection to the vibrating diaphragm assembling substandard products of different model speaker easily
Surveying, this need to be at the set point being simply to set corresponding different model speaker.
Fig. 3 is alternative electrical block diagram of a kind of hardware decision circuitry, and it is applicable to above-mentioned measurement result
Application for the voltage of reflection capacitance size.
According to Fig. 3, this judging unit 102 includes that AND circuit AG and two voltage comparators are respectively as the upper limit
Comparator AP1 and lower limit comparator AP2, above-mentioned power subsystem 104 is arranged to carry to the in-phase input end of upper limit comparator AP1
Upper voltage limit U for corresponding set pointa, and provide under corresponding set point to the inverting input of lower limit comparator AP2
Voltage limit Ub.The measurement result outfan of capacitance measurement unit 101 compares with inverting input and the lower limit of upper limit comparator AP1
The in-phase input end of device AP2 connects, in conjunction with the embodiment shown in Fig. 2, such as via measurement result outfan output voltage U0On,
The outfan of the limit outfan of comparator AP1 and lower limit comparator AP2 each with the input company of above-mentioned AND circuit AG
Connecing, the outfan of AND circuit AG is arranged to be used for exporting above-mentioned judging result signal.
The operation principle of judging unit shown in Fig. 3 is: as voltage U0Time in set point, upper limit comparator AP1 and under
Limit comparator AP2 all exports high level signal, and therefore, it is just that AND circuit AG will export high level signal, i.e. high level signal
Regular signal；As voltage U0During beyond set point, if voltage U0Less than lower voltage limit Ub, then lower limit comparator AP2 exports low electricity
Ordinary mail number, if voltage U0More than upper voltage limit Ua, then upper limit comparator AP1 output low level signal, therefore, AND circuit AG
It is abnormal signal by output low level signal, i.e. low level signal.
Above-mentioned Tip element 103 is arranged to carry out vibrating diaphragm according at least to abnormal signal and assembles abnormal prompting, it is also possible to
Carry out vibrating diaphragm according to normal signal and assemble normal prompting.
Above-mentioned Tip element 103 can include the one in auditory tone cues electric circuit, light cue circuit and display reminding circuit
Or combination in any.
Fig. 4 is alternative electrical block diagram of a kind of smooth cue circuit, and it can be carried out according to abnormal signal
Vibrating diaphragm assembles abnormal prompting, and carries out the normal prompting of vibrating diaphragm assembling according to normal signal.
According to Fig. 4, this Tip element 103 includes single pole double throw analog switch U103, assembles regular prompt display lamp
D1031 and assemble abnormal prompt display lamp D1032, this single pole double throw analog switch U103 have the first outfan NO1, second defeated
Go out to hold NC1, public input COM1, gating to control end IN1, positive supply input VCC and earth terminal GND, above-mentioned power subsystem
104 provide running voltage Uv to positive supply input VCC；This gating control end IN1 act as selecting and public input
The outfan of end COM1 connection, such as when gating controls the gating signal that end IN1 receives high level, public input COM1
Connect with the first outfan NO1, gating control end IN1 receive low level gating signal time, public input COM1 with
Second outfan NC1 connection, to this end, this gating controls end IN1 for receiving the judging result signal of judging unit 102 output.
On this basis, for abnormal signal be low level signal, normal signal be the embodiment of high level signal, above-mentioned
Regular prompt display lamp D1031 is connected between the first outfan N01 and earth terminal, above-mentioned assembling abnormal prompt display lamp
D1032 is connected between the second outfan NC1 and earth terminal, and public input COM1 is then via pull-up resistor R1 and positive supply
Input VCC connects.So, when gating control end IN1 receives normal signal, regular prompt display lamp D1031 is lit,
Gating control end IN1 receive abnormal signal time, abnormal prompt display lamp D1032 is lit, two display lamp D1031,
D1032 can select different colors, and such as abnormal prompt display lamp D1032 selects red led, and regular prompt indicates
Lamp D1031 selects green indicating lamp etc..
This kind of light cue circuit can also be realized by semiconductor switch devices such as metal-oxide-semiconductors, does not repeats them here.
It addition, above-mentioned abnormal prompt display lamp D1032 is replaced with buzzer, or make in the circuit shown in Fig. 4
Abnormal prompt display lamp D1032 connects with buzzer can realize auditory tone cues electric circuit.
Above-mentioned display reminding circuit can be numeral method, LCD display circuit etc., and it is possible not only to point out the most different
Often, it is also possible to when extremely judging using processor to carry out, display is by the calculated spacing of processor, and this spacing is raises
Spacing between protecgulum and the stiffener of speaker of sound device.
Fig. 5 is the structural representation of a kind of embodiment of the speaker according to second aspect present invention.
According to Fig. 5, speaker of the present invention is formed with the testing capacitor that capacitance is relevant to vibrating diaphragm assembling position, should
Testing capacitor is plane-parallel capacitor, wherein, the capacitor plate that protecgulum 503 is testing capacitor of speaker, raise one's voice
Another capacitor plate that stiffener 502 is testing capacitor on the vibrating diaphragm 501 of device, protecgulum 503 and stiffener 503 are provided with
For connecting testing capacitor, the capacitance of testing capacitor to be entered by vibrating diaphragm of the present invention assembling inferior detector 100
The connector that row is measured, this connector e.g. connecting lead wire, it is also possible to be provided in the adapter on FPCB plate.
Owing to the capacitance of plane-parallel capacitor is in the case of relative area, dielectric constant are certain, depend on two poles
Spacing between plate, and this spacing is the most relevant to vibrating diaphragm assembling position, therefore, the error allowed band that vibrating diaphragm assembles will be with electricity
The normal variation scope of capacitance produces direct mapping relations, and this explanation is big by the capacitance judging this plane-parallel capacitor of reflection
Whether little measurement result, whether in set point, will be capable of the error to vibrating diaphragm assembling position in error allowed band
Interior test for identification.
Additionally providing a kind of electronic equipment according to a third aspect of the present invention, this electronic equipment is provided with according to of the present invention
Speaker.This electronic equipment e.g. mobile phone, panel computer, MP4 etc. have the equipment of voice output function.
The various embodiments described above primary focus describes the difference with other embodiments, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone as required or be combined with each other.
Being described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and also
It is not limited to disclosed each embodiment.In the case of the scope and spirit without departing from illustrated each embodiment, for this skill
For the those of ordinary skill in art field, many modifications and changes will be apparent from.The selection of term used herein, purport
Explaining the principle of each embodiment, actual application or the technological improvement to the technology in market best, or making this technology lead
Other those of ordinary skill in territory is understood that each embodiment disclosed herein.The scope of the present invention is limited by claims
Fixed.
Claims (9)
1. a vibrating diaphragm assembles inferior detector, it is characterised in that including:
Capacitance measurement unit (101), is arranged to measure the capacitance of testing capacitor, and output reflects described capacitance size
Measurement result, wherein, two pole plates of described testing capacitor are respectively the stiffener (502) on the vibrating diaphragm (501) of speaker
Protecgulum (503) with speaker；
Judging unit (102), is arranged to judge that described measurement result, whether in set point, exports judging result signal,
Wherein, in this way, the most described judging result signal assembles normal normal signal, as no, the most described judged result for characterizing vibrating diaphragm
Signal is to characterize vibrating diaphragm to assemble abnormal abnormal signal；
Tip element (103), is arranged to carry out vibrating diaphragm according at least to described abnormal signal and assembles abnormal prompting；And,
Power subsystem (104), is arranged to described capacitance measurement unit (101), judging unit (102) and Tip element
(103) voltage needed for providing.
Vibrating diaphragm the most according to claim 1 assembles inferior detector, it is characterised in that described capacitance measurement unit
(101) including operational amplifier (A) and fixed capacity (C), described power subsystem (104) is arranged to described operational amplifier
(A) measurement voltage is provided；
Described fixed capacity (C) is connected as the inverting input of anti-phase input impedance with described operational amplifier (A), described fortune
The inverting input calculating amplifier (A) leads to the first connection end of a pole plate for connecting described testing capacitor
(J1), the outfan of described operational amplifier (A) leads to second of another pole plate for connecting described testing capacitor
Connecting end (J2), described capacitance measurement unit (101) exports described measurement via the outfan of described operational amplifier (A) and ties
Really.
Vibrating diaphragm the most according to claim 2 assembles inferior detector, it is characterised in that the one of described fixed capacity (C)
End is connected with the inverting input of described operational amplifier (A), other end ground connection；The homophase input of described operational amplifier (A)
Hold and be connected with measurement voltage input end (Vin).
4. assemble inferior detector according to the vibrating diaphragm described in claim 1,2 or 3, it is characterised in that described measurement result is anti-
Reflecting the voltage of described capacitance size, described judging unit (102) includes AND circuit (AG) and two voltage comparators respectively
As upper limit comparator (AP1) and lower limit comparator (AP2), described power subsystem (104) is arranged to compare to the described upper limit
The in-phase input end of device (AP1) provides the upper voltage limit of corresponding described set point and anti-to described lower limit comparator (AP2)
Phase input provides the lower voltage limit of corresponding described set point；
The inverting input of the measurement result outfan of described capacitance measurement unit (101) and described upper limit comparator (AP1) and
The in-phase input end of described lower limit comparator (AP2) connects, and outfan and the described lower limit of described upper limit comparator (AP1) compare
The outfan of device (AP2) is each connected with an input of described AND circuit (AG), the output of described AND circuit (AG)
End is arranged to be used for exporting described judging result signal.
5. assemble inferior detector according to the vibrating diaphragm described in claim 1,2 or 3, it is characterised in that described judging unit
(102) include analog-digital converter and processor, described analog-digital converter to be arranged to the measurement result of analog quantity and be converted to number
The measurement result of word amount；Described processor be arranged to judge the measurement result of described digital quantity whether in set point, defeated
Go out described judging result signal.
Vibrating diaphragm the most according to claim 1 assembles inferior detector, it is characterised in that described Tip element (103) is also
It is arranged to carry out vibrating diaphragm according to described normal signal and assembles normal prompting.
7. assemble inferior detector according to the vibrating diaphragm described in claim 1 or 6, it is characterised in that described Tip element (103)
Including at least one in auditory tone cues electric circuit, light cue circuit and display reminding circuit.
8. a speaker, it is characterised in that be formed with the testing capacitor that capacitance is relevant to vibrating diaphragm assembling position, wherein,
The capacitor plate that protecgulum (503) is described testing capacitor of described speaker, on the vibrating diaphragm (501) of described speaker
Stiffener (502) is another capacitor plate of described testing capacitor, and described protecgulum (503) and described stiffener (502) set
It is equipped with for connecting described testing capacitor, the connector measured with the capacitance to described testing capacitor.
9. an electronic equipment, it is characterised in that be provided with the speaker described in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374082.5A CN106060747A (en) | 2016-05-30 | 2016-05-30 | Diaphragm assembly defective detection device, loudspeaker and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374082.5A CN106060747A (en) | 2016-05-30 | 2016-05-30 | Diaphragm assembly defective detection device, loudspeaker and electronic equipment |
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| CN106060747A true CN106060747A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610374082.5A Pending CN106060747A (en) | 2016-05-30 | 2016-05-30 | Diaphragm assembly defective detection device, loudspeaker and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112188367A (en) * | 2019-07-04 | 2021-01-05 | 华为技术有限公司 | Loudspeaker assembly method and system |
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| CN112188367B (en) * | 2019-07-04 | 2021-10-22 | 荣耀终端有限公司 | Loudspeaker assembly method and system |
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