KR20060058302A - Microphone assembly - Google Patents

Abstract

The present invention relates to a microphone assembly, and in the present invention, it is possible to fix and support a case on which an instrument, a PCB, and the like are mounted, and separately provide an interface board having predetermined interface terminals on its outer edge, and the case of the PCB Instead of the positive and negative terminals, the interface terminals of this interface board are used as intermediate mediators so that they can be naturally surface-mounted on the circuit terminals of the printed circuit board of the electronic device, thereby disassembling jig for disassembly of the assembly and repairing jig for reassembly. It can be guided so that the incoming route can be simplified naturally.

In addition, in the present invention, not only the PCB-side positive electrode terminal which is difficult to access, but also the simple operation of inserting the jig into the interface terminals of the interface board, which is easily accessible, the extraction procedure of the defective assembly and the remounting of the repair assembly are performed. By guiding the procedure to proceed easily, it is possible to easily guide the problem of disposal (replacement) of the entire printed circuit board due to the sole failure of the microphone.

Description

Microphone assembly

1 is an exemplary view showing a microphone assembly according to the prior art.

Figure 2 is an exploded perspective view showing a separate microphone assembly according to the present invention.

3 and 4 are exemplary views showing the assembled state of the microphone assembly according to the present invention.

5 is an exemplary view showing a structure of an interface board according to the present invention.

The present invention relates to a microphone assembly, and more particularly, at the producer side, a simple operation of inserting the jig into the interface terminals of the interface board that is easily accessible, rather than the PCB side positive and negative terminals, which are hardly accessible. A microphone that can guide the user to easily solve the problem of unnecessary disposal (replacement) of the entire printed circuit board due to the sole failure of the microphone by guiding the assembly extraction procedure and the reassembly procedure of the repair assembly. To an assembly.

Recently, as the technology of the field of information and communication devices such as mobile phones and telephones, and the field of aroma units such as amplifiers has been rapidly developed, the microphone assembly for converting acoustic energy into electrical energy has been developed. Demand is also increasing rapidly.

In general, such a microphone assembly, for example, a surface mount microphone assembly, is surface mounted on a circuit terminal of a printed circuit board embedded in an electronic device (information and communication device, sound device, etc.), thereby making an electrical connection with the printed circuit board. By forming, the acoustic energy / electric energy conversion role given to the person can be normally performed.

As shown in FIG. 1, the microphone assembly 10 according to the related art is accommodated in a cylindrical case 1 having a sound wave inlet 1a and an inner space of the case 1. The instruments vibrating by the sound (M) input through the sound wave inlet (1a) of the, and the PCB (2) for electrically processing the capacitance change caused by the vibration of these instruments is combined.

At this time, for example, the polar instruments 3 and the diaphragm 4 constituting the diaphragm assembly 5, the dielectric plate 7 holding a gap between the diaphragm 4, the diaphragm 4, and the dielectric material, for example. Spacer ring 6 for forming gaps between plates 7, conductive base ring 8 for electrically connecting dielectric plate 7 and PCB 2, conductive base ring 8 and dielectric plate The insulating base ring 9 or the like for insulating the 7 from the case 1 may be selected. In this case, the preceding dielectric plate 7 may elastically take a metal material or Si material depending on the situation.

In this situation, the outer rim 1b of the case 1 is bent in the direction of the inner space through a series of curling procedures to form a structure that tightly seals the mechanisms inside the case 1 from the outside.

Subsequently, the completed microphone assembly 10 is surface-mounted on the circuit terminal 200a of the printed circuit board 200 embedded in an electronic device (information communication device, sound device, etc.), and the printed circuit board 200 is electrically connected to the printed circuit board 200. By establishing a proper connection, one can normally perform the acoustic energy / electric energy conversion role given to him.

At this time, the rear surface of the PCB (2) is electrically connected to the circuit terminal (200a) of the printed circuit board 200 disposed in the electronic device, when mounting the electronic device side of the microphone assembly 10, the PCB (2) Positive and negative terminals 2a and 2b for electrically connecting the device are further arranged.

Under the conventional system described above, when testing or operating an electronic device, the producer side selects and extracts the mounted microphone assembly 10 from the printed circuit board 200 due to various reasons. There is a frequent need to repair the assembly 10 and to refit the repaired assembly 10 to the printed circuit board 200 side.

However, despite this situation, the terminal of the PCB 2, for example, the anode terminal 2a of the PCB 2, which is physically (electrically) bonded to the circuit terminal 200a of the printed circuit board 200, Due to the inherent nature of the microphone assembly 10, it was inevitably moved to the inside of the PCB 2 to be disposed about the center of the PCB 2, so that the microphone assembly on the producer side, unless special measures are taken In the state in which 10 is electrically mounted on the printed circuit board 200 on the electronic device side, it is difficult to draw a jig (not shown) for the removal of the defective assembly to the positive terminal 2a side. In the situation where the repaired microphone assembly 10 must be remounted on the electronic device side printed circuit board 200, or there is a lot of difficulty in introducing the jig for remounting the repair assembly to the positive terminal 2a side. They are forced to suffer.

Of course, in this case, if the difficulty in the insertion of the jig, the producer side can not normally proceed with the extraction procedure of the defective assembly, the remounting procedure of the repair assembly, etc. In the end, even in the single bad situation of the microphone assembly 10 Inevitably, the entire printed circuit board 200 has to suffer serious problems that need to be disposed or replaced unnecessarily.

Accordingly, an object of the present invention is to provide a separate interface board having predetermined interface terminals on its outer edge while being able to fix and support the case on which the instrument, the PCB, and the like are mounted, whereby the case provides Instead of the negative terminal, the interface terminal of the interface board is used as an intermediate medium, so that it can be surface-mounted naturally on the circuit terminal of the printed circuit board of the electronic device. This is to guide the path to simplify naturally.

Another object of the present invention is to remove the defective assembly, re-assembly of the repair assembly by the simple operation of inserting the jig into the interface terminals of the accessible interface board, not the PCB-side positive anode terminal which is difficult to access on the producer side. By inducing the mounting procedure to proceed easily, it is to guide to solve the problem of disposal (replacement) of the entire printed circuit board due to the sole failure of the microphone.

Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

In order to achieve the above object, in the present invention, while having a sound wave inlet, a PCB for electrically processing the vibrations of the apparatus and the capacitance changes due to the vibration of the instrument in the internal space through the sound wave inlet. Disclosed is a microphone assembly comprising a combination of a case containing a sealed housing, an interface board fixed and supported by the case, and a surface mounted on a circuit terminal of an electronic device while the case is mounted.

Hereinafter, a microphone assembly according to the present invention will be described in more detail with reference to the accompanying drawings.

As shown in Figures 2 and 3, the microphone assembly 100 according to the present invention is sealed and accommodated in a round cylindrical case 101, the sound inlet 101a is formed, and the inner space (S) of the case , While being encapsulated in the instrument 110 vibrating by the sound M input through the sound wave inlet 101a and the inner space S of the case, the change in capacitance due to the vibration of the instrument 110 may be electrical. The PCB 102 to be processed will take a combined configuration. In this case, an electronic circuit (not shown), for example, a transistor, a capacitor, or the like for electrical signal processing is further disposed inside the PCB 102.

At this time, the former mechanism 110 is sequentially mounted on the upper portion of the case 101, for example, the diaphragm assembly 111, spacer ring (114), insulated sequentially mounted in the inner space of the case 101 The base ring 115, the dielectric plate 116, the conductive base ring 117 and the like may be configured in combination (of course, such mechanisms can be elastically deformed depending on the situation, the type, arrangement, etc.). ).

In this case, the diaphragm assembly 111 has a configuration in which a polar ring 113 and a diaphragm 112 are combined, and the dielectric plate 116 is elastically made of, for example, a metal material or a Si material according to a situation. Can be taken.

Here, the front case 101 is made of, for example, aluminum (Al) or copper (Cu), the polar ring 113 is, for example, nickel (Ni) plated (Prass) plate (Prass plate) The spacer ring 114 is made of, for example, a PET film having a thickness of about 35 μm to 46 μm, and the diaphragm 112 has a thickness of about 2.5 μm to 3.5 μm coated with gold or nickel. It is made of a PET film having (of course, the material, shape, etc. of each of these components will be able to achieve a variety of deformation depending on the situation is natural).

In this situation, the preceding conductive base ring 117 electrically connects the dielectric plate 116 and the PCB 102 to change the gap between the diaphragm 112 and the dielectric plate 116 of the diaphragm assembly 113. Accordingly, when a current signal variation occurs, the current signal variation is transferred to the transistor of the PCB 102, and the insulating base ring 115 forms an edge of the conductive base ring 117 and the dielectric plate 116. By covering, the conductive base ring 117 and the dielectric plate 116 serve to block electrical contact with the inner wall of the case 101. In this case, the preceding insulating base ring 115 may be replaced with an insulating film (film) coated on the inner wall of the case 101 according to circumstances.

At this time, the outer edge 101b of the case 101 is bent in the direction of the inner space (S) through a series of curing procedures, and firmly structured to seal the instruments, the PCB 102, etc. inside the case 1 from the outside To form.

Subsequently, the completed microphone assembly 100 is surface-mounted on the circuit terminal 200a of the printed circuit board 200 embedded in an electronic device (information and communication device, sound device, etc.), and the printed circuit board 200 and the By establishing a proper connection, one can normally perform the acoustic energy / electric energy conversion role given to him.

In this case, when the electronic device side of the microphone assembly 10 is mounted on the rear surface of the PCB 102, the PCB 2 is electrically connected to the circuit terminal 200a of the printed circuit board 200 disposed in the electronic device. Positive and negative terminals 102a and 102b for electrically connecting with the electronic device are further disposed.

Under such a system of the present invention, when testing or operating an electronic device, the producer side selects and extracts the mounted microphone assembly 100 from the printed circuit board 200 due to various causes, and then, the extraction is completed. There is a frequent need to repair the assembly 100 and remount the repaired assembly 100 on the printed circuit board 200 side.

Of course, despite this situation, the terminal of the PCB 102, for example, the anode terminal 102a of the PCB 102, inevitably, has a certain distance into the PCB 102 due to the inherent characteristics of the microphone assembly 100. Since it can only be moved around and placed around the back center of the PCB 102, on the producer side, the microphone assembly 100 is mounted on the electronics side printed circuit board 200, unless special measures are taken. Retracting the repair assembly in a situation in which it is difficult to introduce a jig for extracting the assembly to the positive terminal 102a side, or when the repaired microphone assembly must be remounted on the electronic device side printed circuit board 200. In introducing the jig for mounting to the positive terminal (102a) side, there is no choice but to suffer a lot of difficulties.

In such a sensitive situation, as shown in FIG. 4 (including FIGS. 2 and 3), in the present invention, <the case 101 in which the assembly 110, the PCB 102, etc. are sealed in the assembly 100> Take measures to further arrange the interface board 120 that can support the fixed.

In this case, the interface board 120 has a structure in which the surface is naturally mounted on the circuit terminal 200a of the printed circuit board 200 with the case 101 mounted on the electronic device side of the assembly 100. It can be formed.

In this case, a part of the rear surface 120b of the interface board 120 that is in contact with the circuit terminal 200a of the printed circuit board 200, preferably, the case 101 at an outer edge (for example, a corner) of the rear surface 120b. Interface terminals 121 for electrically connecting the positive and negative terminals 102a and 102b of the PCB 102 and the circuit terminals 200a of the printed circuit board 200 are further formed. In this case, the interface board ( The interface terminals 121 of the 120 replace the positive and negative terminals 102a and 102b of the PCB 102 and physically (electrically) bond with the circuit terminals 200a of the printed circuit board 200 on the electronic device side. It becomes possible to form the structure naturally.

At this time, the positive and negative terminals 102a and 102b of the PCB 102 are physically and electrically bonded and fixed to the interface board 120 by the bonding material 300 (Solder), and then the electrical formed on the interface board 102. By taking a structure that is electrically connected to the interface terminals 121 through the connection patterns (not shown), the interface terminals 121 are later bonded to the circuit terminals 200a of the printed circuit board 200. In the case of (contacting), it is possible to form a natural electrical connection with the circuit terminal (200a).

Of course, the case 101 has the interface terminals 121 of the interface board 120 as an intermediate medium instead of the positive and negative terminals 102a and 102b of the PCB 102, and thus the printed circuit board on the electronic device side ( In the situation where the surface is naturally mounted on the circuit terminal 200a of the 200, due to various reasons, the necessity of selectively extracting the mounted microphone assembly 100 from the printed circuit board 200 is completed. When the necessity of mounting the assembly 100 on the printed circuit board 200 again> and the like is raised, the producer side dares to remove the extraction jig T, the mounting jig T, etc. unlike the conventional one. Rather than forcing the positive terminal 102a of the terminal to be easily inserted into the interface terminals 121 of the interface board 120, which is easily accessible, it is possible to remove the defective assembly procedure, repair assembly remounting procedure, etc. desired by the user. When proceeding naturally It can be so.

As such, under the implementation environment of the present invention, various jig T are naturally not toward the PCB side 102 anode terminal 102a that is difficult to access, but toward the interface terminals 121 of the interface board 120 that are easily accessible. If it can be pulled in, the producer side can proceed very easily and without any problem, the removal procedure of the defective assembly, the remounting procedure of the repair assembly, etc., irrespective of the structural limitations of the positive terminal 102a of the PCB 102 As a result, it is possible to effectively avoid the conventional <problem (disposal) of the entire printed circuit board due to the microphone alone failure>.

At this time, in the present invention, as shown in Figure 5 (including Figures 2 to 4), for example, the front surface of the interface board 120 in contact with the edge 101b of the case 101 (that is, the curling portion of the case) ( An action to further arrange the fixing groove 123 in 120a is taken.

In a case where the fixing groove 123 is additionally disposed, when the case 101 is mounted on the interface board 120, the edge 101b (curing portion) of the case 101 naturally descends to form the interface board 120. It is possible to take the structure that is inserted into the fixing groove 123, after all, under the coupling structure with the fixing groove 123, the case 101 can effectively maintain a very stable fixed state.

Depending on the situation, the present invention may take measures to further arrange a predetermined adhesive means 124, for example, an adhesive, an adhesive film, or the like inside the fixing groove 123 mentioned above (of course, depending on the situation, It will be appreciated that the adhesive means can be easily replaced with other similar products).

In this case, the adhesive means 124 such as an adhesive or an adhesive film performs a function of firmly reinforcing and attaching the edge 101b of the case inserted into the fixing groove 123 into the fixing groove 123. To guide the case 101 may be maintained more effectively.

Meanwhile, in some embodiments of the present invention, in addition to the fixing groove 123 described above, one or more through holes 122 penetrating the front and rear surfaces 120a and 120b may be additionally disposed on a part of the interface board 120. Action may be taken.

In the additional arrangement of the through holes 122, before the interface board 120 having the case 101 mounted on the electronic device side printed circuit board 200 is mounted on the producer side, the front through holes 122 are removed. Through this, the mounting state of the case 101, for example, the bonding state of the joined object 300 can be observed in advance, and as a result, various damages due to the poor mounting of the case 101 can be effectively prevented in advance.

Of course, the front through holes 122 may be widely used not only for the above-described observation but also for the reinforcement of the joint 300.

That is, when the above-mentioned through holes 122 are additionally formed in a part of the interface board 120, the positive and negative terminals 102a and 102b of the PCB 102 on the case 101 side are bonded to the interface board 120. When the case 300 is mounted on the front surface of the interface board 120, at the same time, the junction 300 naturally flows into each of the through holes 122 to form a more firm bonding structure with the interface board 120. As a result, in the additional arrangement situation of the through holes 122 described above, the case 101 can effectively maintain a more stable fixed state.

On the other hand, the case 101 of the present invention having such a structure is used under the situation that the case 101 is completed mounted on an electronic device, for example, the printed circuit board 200 of the mobile communication terminal via the interface board 120, the mobile communication terminal is used. When the user initiates a call of his or her desire and a series of sound waves M, for example, a user's voice flows through the sound wave inlet 101a of the case 101, the diaphragm 112 immediately prompts the sound wave ( By M), a mechanism that vibrates at a constant speed is taken.

Of course, when the vibration of the diaphragm 112 proceeds, the gap formed between the diaphragm 112 and the dielectric plate 116 is changed at a constant speed by the vibration, and the diaphragm 112 and The electrostatic field between the dielectric plates 116 also changes in response to sound waves. As a result, according to a general law of electrostatic induction, the potential of the dielectric plate 116 may also be rapidly changed in response to sound waves.

In this state, when the potential variable value of the dielectric plate 116 is transferred to the gate electrode of the transistor disposed on the PCB 102 via the conductive base ring 117, the transistor is configured to change the current value according to the potential variable value. After amplification, the circuit terminal of the printed circuit board 200 embedded in the electronic device is passed through the positive / negative electrode terminals 102a and 102b, the electrical connection pattern of the interface board 120, the interface terminal 121, and the like. 200a) is outputted to the user, and eventually, a user using the electronic device can easily output his or her own voice through the self-transmitting operation of the electronic device (mobile communication terminal) that is continuously performed. .

As described above in detail, in the present invention, the interface board having predetermined interface terminals can be separately provided on its outer edge while being able to fix and support the case on which the instrument, the PCB, and the like are mounted. Instead of the negative terminal, the interface terminal of this interface board is used as an intermediate medium, so that it can be surface-mounted naturally on the circuit terminal of the printed circuit board of the electronic device. Guidance can be guided to simplify the incoming route naturally.

In addition, in the present invention, not only the PCB-side positive electrode terminal which is difficult to access, but also the simple operation of inserting the jig into the interface terminals of the interface board, which is easily accessible, the extraction procedure of the defective assembly and the remounting of the repair assembly are performed. By guiding the procedure to proceed easily, it is possible to easily guide the problem of disposal (replacement) of the entire printed circuit board due to the sole failure of the microphone.

The present invention described above exhibits an overall useful effect in various types of electronic devices requiring a microphone.

And, in the foregoing, specific embodiments of the present invention have been described and illustrated, but it is obvious that the present invention may be variously modified and implemented by those skilled in the art. Such modified embodiments should not be understood individually from the technical spirit or point of view of the present invention and such modified embodiments should fall within the scope of the appended claims of the present invention.

Claims (6)

A case having a sound wave inlet and a sealed housing of a printed circuit board (PCB) for electrically processing the vibrations caused by the sound input through the sound wave inlet and an electrostatic capacity change due to the vibrations of the devices in the inner space; ; And an interface board which fixes and supports the case and is surface mounted on a circuit terminal of an electronic device in a state where the case is mounted. The microphone assembly according to claim 1, wherein a fixing groove for fixing the case is further formed on a front surface of the interface board in contact with the case. 3. The microphone assembly according to claim 2, wherein an adhesive means for reinforcing the fixing state of the case is further disposed in the fixing groove. The microphone assembly of claim 1, wherein the interface board further includes one or more through holes. The microphone assembly of claim 1, wherein interface terminals for electrically connecting the PCB and the circuit terminal are further formed on a rear surface of the interface board in contact with the circuit terminal of the electronic device. 6. The microphone assembly of claim 5, wherein the interface terminals are disposed at a rear outer edge of the interface board.

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