CN202587315U

CN202587315U - Microphone

Info

Publication number: CN202587315U
Application number: CN 201220236230
Authority: CN
Inventors: 党茂强; 王友
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2012-05-24
Filing date: 2012-05-24
Publication date: 2012-12-05
Anticipated expiration: 2022-05-24

Abstract

The utility model discloses a microphone including a packaging structure defined by a shell and a circuit board having a sound hole. A plane-parallel capacitor is arranged in the packaging structure. The microphone also includes a flexible circuit board. A first end part of the flexible circuit board is provided with an electronic circuit assembly. The first end part of the flexible circuit board is arranged in the bottom part of the shell in the packaging structure. A central part of the flexible circuit board is arranged next to the inner side wall of the shell. A second end part of the flexible circuit board is connected with the circuit board electrically. The plane-parallel capacitor is arranged next to the circuit board and is connected to the first end part of the flexible circuit board through a support piece and a conducting piece electrically in a supported manner. The plane-parallel capacitor converts acoustic signals into electric signals and transmits the electric signals to the first end part of the flexible circuit board through the conducting piece. The treatment of the electric signals is realized through the electronic circuit assembly. The electric connection of treated electric signals and the circuit board is realized through the central part and the second end part of the flexible circuit board. And finally the output of the treated electric signals is realized through a pad on the circuit board outside the packaging structure.

Description

Microphone

Technical field

The utility model relates to the acoustical-electrical transducer technical field, more particularly, relates to a kind of microphone.

Background technology

Along with the progress of society and the development of technology; In recent years; Along with electronic product volumes such as mobile phone, notebook computer constantly reduce; People are also increasingly high to the performance requirement of these portable electronic products, thereby also require the volume of supporting with it electronic component constantly to reduce, performance and consistency improve constantly.Under this background, also released a lot of novel products as the microphone products field of one of strength member of above-mentioned portable electronic products.

The microphone of above-mentioned which kind of form all has the encapsulating structure of being made up of wiring board and shell; On said wiring board, be provided with the electronic circuit set of forming by electronic devices and components such as electric capacity, resistance; For the whole height that reduces product is provided with a sound hole of accepting voice signal in the circuit board; And on the outside said PCB surface of encapsulating structure, be provided with and the extraneous pad that is electrically connected; This kind structure Design is called as " Bottom " structural design; Because this kind design sound hole must be arranged on the outside said PCB surface of encapsulating structure; Because the inner said PCB surface of encapsulating structure is provided with the electronic circuit set of being made up of electronic devices and components such as electric capacity, resistance, the design in sound hole has very big restriction to arranging of electronic devices and components such as the electric capacity on the wiring board, resistance, need design a kind of novel microphone thus simultaneously.

The utility model content

In view of the above problems, the purpose of the utility model provides a kind of a kind of microphone that a kind of electronic circuit set that electronic devices and components such as electric capacity, resistance are formed does not receive the wiring board spatial constraints that on the basis that does not influence properties of product, designs.

For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of microphone, comprise that shell and wiring board surround the encapsulating structure that forms, and said wiring board is provided with the sound hole that receives voice signal; The outside said PCB surface of said encapsulating structure is provided with and the extraneous pad that is electrically connected; Said encapsulating structure inside is provided with the plane-parallel capacitor of being made up of diaphragm, pad and pole plate, wherein, also comprises a FPC; First end on the said FPC is provided with the electronic circuit set of being made up of electronic devices and components; The first end of said FPC is arranged on the inner said outer casing bottom of said encapsulating structure, and the pars intermedia of said FPC and said shell madial wall neighbour establish, and said the second end is electrically connected with said wiring board; The inner said PCB surface of said plane-parallel capacitor diaphragm end and said encapsulating structure is in abutting connection with setting; Between said plane-parallel capacitor plate end and the said FPC first end through supports support and be electrically connected through electric-conductor; Said plane-parallel capacitor converts acoustical signal to the signal of telecommunication and the signal of telecommunication is electrically connected to through said electric-conductor on the first end of said FPC and the processing through the said electronic circuit set realization signal of telecommunication; First end on the said FPC is realized the signal of telecommunication of handling well and being electrically connected of said wiring board through said FPC pars intermedia and the second end, is finally exported through the pad on the said wiring board in encapsulating structure outside.

A kind of improvement, said shell aperture end is provided with depressed part, and the said the second end on the said FPC is arranged in the said depressed part and with said wiring board and is electrically connected.

A kind of preferred version; Said strutting piece is an insulated cavity; Said electric-conductor is arranged in the said insulated cavity; Said pole plate in the said plane-parallel capacitor is contained in the said insulated cavity and through being electrically connected of the first end on said electric-conductor realization and the said FPC, said pole plate, insulated cavity and electric-conductor constitute the cavity assembly jointly.

A kind of preferred version, said FPC are FPCB, and said electric-conductor is a becket.

A kind of preferred version, said microphone are square microphone.

A kind of preferred version, said microphone are cylindrical microphone.

Utilize above-mentioned microphone according to the utility model; Because will handle the electronic circuit set of the signal of telecommunication is arranged on the first end of FPC; The sound hole of accepting voice signal is provided with in the circuit board; With the corresponding setting of plane-parallel capacitor with wiring board; Acoustic pressure can affact through the sound hole on the wiring board and realize the transformation of acoustical signal to the signal of telecommunication on the plane-parallel capacitor, and the signal of telecommunication after changing is affacted on the first end of FPC through said electric-conductor, utilizes the electronic circuit on the FPC first end to gather the processing that realizes the signal of telecommunication; And the signal of telecommunication after will handling realizes and being electrically connected of said wiring board through said FPC pars intermedia and the second end, finally exports through the pad on the said wiring board in encapsulating structure outside.Do not influencing on the circuit connection basis and will separate setting with wiring board, effectively preventing the restriction that the design in sound hole has arranging of the electronic devices and components on the wiring board by the electronic circuit set that electronic devices and components are formed.

Description of drawings

Through with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with the more complete understanding to the utility model, other purpose of the utility model and result will understand more and reach easy to understand.

Fig. 1 is the generalized section of the utility model embodiment microphone.

Fig. 2 is the structural representation of FPC among the utility model embodiment.

Fig. 3 is the front view of shell among the utility model embodiment.

Embodiment

Below will combine accompanying drawing that the specific embodiment of the utility model is described in detail.

Embodiment:

As shown in Figure 1; A kind of microphone comprises that the shell 1 of an end opening and wiring board 2 surround the encapsulating structure that forms, and said wiring board 2 is provided with the sound hole 20 that receives voice signal; The outside said wiring board of said encapsulating structure 2 surfaces are provided with and the extraneous pad 21 that is electrically connected; Said encapsulating structure inside is provided with the plane-parallel capacitor of being made up of diaphragm 3, pad 4 and pole plate 5, wherein, also comprises a FPC 6; As shown in Figure 2; Said FPC 6 comprises first end 61, pars intermedia 62 and the second end 63, and the first end 61 on the said FPC 6 is provided with the electronic circuit set of being made up of electronic devices and components 60, and the first end 61 of said FPC 6 is arranged on the inner said shell of said encapsulating structure 1 bottom; The pars intermedia 62 and the said shell 1 madial wall neighbour of said FPC 6 establish, and the second end 63 on the said FPC 6 is electrically connected with said wiring board 2; The inner said wiring board 2 surface settings of said plane-parallel capacitor diaphragm end and said encapsulating structure; Support and be electrically connected through strutting piece 7 between said plane-parallel capacitor plate end and said FPC 6 first ends 61 through electric-conductor 8; Said plane-parallel capacitor converts acoustical signal to the signal of telecommunication and the signal of telecommunication is electrically connected to the processing that realizes the signals of telecommunication on the first end 61 of said FPC 6 and through the said electronic circuit set 60 on the first end 61 through said electric-conductor 8; First end 61 on the said FPC 6 is realized the signal of telecommunication of handling well and being electrically connected of said wiring board 2 through said FPC 6 pars intermedias 62 and the second end 63, is finally exported through the pad 21 on the said wiring board 2 in encapsulating structure outside.Do not influencing on the circuit connection basis and will separate setting with wiring board, effectively preventing the restriction that the design in sound hole has arranging of the electronic devices and components on the wiring board by the electronic circuit set that electronic devices and components are formed.

As shown in Figure 3, a kind of improvement as realizing the utility model is provided with depressed part 10 at shell 1 openend, and the said the second end 63 on the said FPC 6 is arranged in the said depressed part 10 and with said wiring board 2 and is electrically connected, and is convenient to location and installation.

Strutting piece 7 in the present embodiment is an insulated cavity; Said electric-conductor 8 is arranged in the said insulated cavity; Said pole plate 5 in the said plane-parallel capacitor be contained in the said insulated cavity and through said electric-conductor 8 realize with said FPC 6 on being electrically connected of first end 61, said pole plate 5, insulated cavity and electric-conductor 8 be formation cavity assemblies jointly.

As realizing a kind of optimized technical scheme of the utility model, said FPC 6 is FPCB, and said electric-conductor 8 is a becket, and the facility of drawing materials is convenient to production and processing.

Microphone in the present embodiment is square microphone, can certainly be the shape of cylindrical microphone or other structure.

Above embodiment is owing to the electronic circuit set that will handle the signal of telecommunication is arranged on the first end of FPC; The sound hole of accepting voice signal is provided with in the circuit board; With the corresponding setting of plane-parallel capacitor with wiring board; Acoustic pressure can affact through the sound hole on the wiring board and realize the transformation of acoustical signal to the signal of telecommunication on the plane-parallel capacitor; Affact the signal of telecommunication after changing on the first end of FPC through said electric-conductor; Utilize electronic circuit set on the FPC first end to realize the processing of the signal of telecommunication, and the signal of telecommunication after will handling realizes and being electrically connected of said wiring board through said FPC pars intermedia and the second end, finally export through the pad on the said wiring board in encapsulating structure outside.Do not influencing on the circuit connection basis and will separate setting with wiring board, effectively preventing the restriction that the design in sound hole has arranging of the electronic devices and components on the wiring board by the electronic circuit set that electronic devices and components are formed.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.

Claims

1. microphone; Comprise that shell and wiring board surround the encapsulating structure that forms; Said wiring board is provided with the sound hole that receives voice signal; The outside said PCB surface of said encapsulating structure is provided with and the extraneous pad that is electrically connected, and said encapsulating structure inside is provided with the plane-parallel capacitor of being made up of diaphragm, pad and pole plate, it is characterized in that: also comprise a FPC; First end on the said FPC is provided with the electronic circuit set of being made up of electronic devices and components; The first end of said FPC is arranged on the inner said outer casing bottom of said encapsulating structure, and the pars intermedia of said FPC and said shell madial wall neighbour establish, and said the second end is electrically connected with said wiring board; The inner said PCB surface of said plane-parallel capacitor diaphragm end and said encapsulating structure is in abutting connection with setting; Between said plane-parallel capacitor plate end and the said FPC first end through supports support and be electrically connected through electric-conductor; Said plane-parallel capacitor converts acoustical signal to the signal of telecommunication and the signal of telecommunication is electrically connected to through said electric-conductor on the first end of said FPC and the processing through the said electronic circuit set realization signal of telecommunication; First end on the said FPC is realized the signal of telecommunication of handling well and being electrically connected of said wiring board through said FPC pars intermedia and the second end, is finally exported through the pad on the said wiring board in encapsulating structure outside.

2. microphone as claimed in claim 1 is characterized in that: said shell aperture end is provided with depressed part, and the said the second end on the said FPC is arranged in the said depressed part and with said wiring board and is electrically connected.

3. microphone as claimed in claim 1; It is characterized in that: said strutting piece is an insulated cavity; Said electric-conductor is arranged in the said insulated cavity; Said pole plate in the said plane-parallel capacitor is contained in the said insulated cavity and through being electrically connected of the first end on said electric-conductor realization and the said FPC, said pole plate, insulated cavity and electric-conductor constitute the cavity assembly jointly.

4. microphone as claimed in claim 1 is characterized in that: said FPC is FPCB, and said electric-conductor is a becket.

5. microphone as claimed in claim 1 is characterized in that: said microphone is square microphone.

6. microphone as claimed in claim 1 is characterized in that: said microphone is cylindrical microphone.