CN208597145U - A kind of microphone structure and wired hand-held microphone - Google Patents

Abstract

The utility model provides a kind of microphone structure, including front housing, protective case, microphone and circuit board, and microphone is placed on the circuit board, and microphone is placed in the protective case, and protection is placed on the inside of front housing.Sound inlet is set on front housing, sound is transmitted by sound chamber before being arranged between sound inlet and microphone, to improve communication effect.The application of preceding sound chamber does not need the bore for increasing sound inlet, and the bore of sound chamber, has not significant impact the design of product before the bore of sound inlet is significantly less than.The microphone structure does not need to replace the type of existing microphone, is applicable in the microphone of general type, and it is wider to be applicable in communication products range.Waterproof miaow net is set in the junction of protective case and front housing, improves the waterproofness of microphone structure.Microphone gasket is set between protective case and waterproof miaow net, certain buffer protection function can be played.The utility model additionally provides a kind of wired hand-held microphone.

Description

A kind of microphone structure and wired hand-held microphone

Technical field

The utility model relates to microphone and audio cavity structures, and in particular to a kind of microphone structure and wired hand-held microphone.

Background technique

Microphone, scientific name are microphone, are the energy conversion devices that voice signal is converted to electric signal, by the vibration of sound It is dynamic to pass on the vibrating diaphragm of microphone, push the magnet of the inside to form the electric current of variation, the electric current of variation is passed to acoustic processing Circuit amplifies processing.

The characteristic of sound can be described by three elements, i.e. loudness, tone and tone color.Human ear feels the subjectivity of sound intensity Feel and is known as loudness.Loudness is related with the amplitude of acoustic vibration.Human ear is known as tone to the feeling of volume up-down.Tone is mainly and sound The frequency of wave is related.The frequency of sound wave is high, then tone is also high.Tone color be people difference have equal loudness, same tone two The characteristic of a sound, or perhaps combined reaction of the human ear to the sound wave of various frequencies, various intensity.The vibration of tone color and sound wave Waveform and phase are related, related with the spectrum structure of sound in other words.

A kind of existing microphone structure is as shown in Fig. 1, including front housing 1a, protective case 4a, microphone 5a, circuit board 6a. The microphone 5a is welded on the circuit board 6a, and the microphone 5a is placed in the protective case 4a.Pass through the Mike Wind 5a converts sound into electric signal, is transmitted to the circuit board 6a, then be transmitted to other communication products.The microphone 5a and The protective case 4a mono- is placed in the inside of the front housing 1a.Sound inlet 7a is set on the front housing 1a, without preceding sound chamber, is led to It is impacted to talk about effect.If communication effect is guaranteed, the sensitivity of the microphone 5a need to be improved, or the sound inlet 7a is set It is set to biggish bore and aperture position will be as close as possible to the center of the microphone 5a, however such structure will affect production Product appearance.

Utility model content

In view of the above-mentioned problems, the utility model solution proposes a kind of microphone structure, including front housing, protective case, Mike Sound inlet is arranged on the front housing in wind and circuit board, passes through sound chamber before being arranged between the sound inlet and the microphone Sound is transmitted, the preceding sound chamber is placed on the front housing, to improve communication effect.

In order to solve the above-mentioned technical problem, the solution of the utility model is:

A kind of microphone structure, including front housing, protective case, microphone and circuit board, the microphone are placed in the circuit On plate, the microphone is placed in the protective case, described to protect the inside for being placed on the front housing；It is arranged on the front housing Sound inlet transmits voice signal by sound chamber before being arranged between the sound inlet and the microphone, and the preceding sound chamber is placed in On the front housing.

As a kind of improvement of microphone structure provided by the utility model, the preceding sound chamber is trapezoidal in depth direction.

As a kind of improvement of microphone structure provided by the utility model, in the connection of the protective case and the front housing Place's setting waterproof miaow net.

As a kind of improvement of microphone structure provided by the utility model, set between the protective case and waterproof miaow net Set microphone gasket.

As a kind of improvement of microphone structure provided by the utility model, the protective case is silica gel miaow set.

As a kind of improvement of microphone structure provided by the utility model, the bore of the sound inlet is less than the preceding sound The bore of chamber.

A kind of wired hand-held microphone, including main body, communication line and connectivity port, connectivity port are electrically connected with one end of communication line, The other end of communication line is electrically connected with main body, and main body includes above-mentioned microphone structure.

Compared with prior art, the utility model has the beneficial effects that

Microphone structure includes front housing, protective case, microphone and circuit board, and the microphone is placed on the circuit board, The microphone is placed in the protective case, described to protect the inside for being placed on the front housing.It is arranged on the front housing into sound Sound is transmitted by sound chamber before being arranged between the sound inlet and the microphone in hole, and the preceding sound chamber is placed in the front housing On, improve communication effect.The application of the preceding sound chamber, does not need the bore for increasing the sound inlet, the bore of the sound inlet It is significantly less than the bore of the preceding sound chamber, the design of product is had not significant impact.

The microphone structure does not need to replace the type of existing microphone, is applicable in the microphone of general type, is applicable in logical Believe that product scope is wider.

Waterproof miaow net is set in the junction of the protective case and the front housing, improves the waterproof of the microphone structure Property.Microphone gasket is set between the protective case and waterproof miaow net, certain buffer protection function can be played.

Detailed description of the invention

Fig. 1 is a kind of microphone structure schematic cross-sectional view of the prior art；

Fig. 2 be the utility model proposes a kind of microphone structure schematic cross-sectional view；

Fig. 3 be the utility model proposes a kind of improved microphone structure schematic cross-sectional view；

Fig. 4 be the utility model proposes a kind of wired hand-held microphone schematic diagram；

Fig. 5 is wired hand-held microphone schematic rear view；

Fig. 6 is the structural schematic diagram of B wired hand-held microphone shown in Fig. 5.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and examples, the examples of the embodiments are in attached drawing In show, in which the same or similar labels are throughly indicated same or similar elements or with the same or similar functions Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot understand For limitations of the present invention.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair The limitation of the utility model.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu Calmly ", the terms such as " setting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also may be used also indirectly connected through an intermediary To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art, The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

Embodiment 1

The utility model proposes a kind of microphone structures, as shown in Fig. 2, including front housing 1, protective case 4, microphone 5, electricity Road plate 6.The microphone 5 is welded on the circuit board 6, the preferred PCB of the circuit board 6.The microphone 5 is placed in the guarantor In sheath 4, the protective case is preferred but is not limited to silica gel miaow set.Voice signal is converted into telecommunications by the microphone 5 Number, it is transmitted to the pcb board 6, then be transmitted to other communication products.The microphone 5 and the protective case 4 are placed in described The inside of front housing 1.Sound inlet 7 is set on the front housing 1.

It is further improved, sound chamber 8 before deep gouge is formed on the front housing 1 can also pass through other technological formings.Before described The space of sound chamber 8 can allow sound to generate the cutoff frequency of a high band, so that intermediate frequency can be improved, reduce the dry sound of high frequency, reduce High band extends, and improves sound transfer efficiency, keeps sound effect bright and full, to improve sound Transfer Quality.Sound passes through The sound inlet 7 enters the preceding sound chamber 8, is then passed to the microphone 5, is converted sound by the microphone 5 Electric signal is transmitted to the pcb board 6, then is transmitted to other communication products, to improve communication effect.The preceding sound chamber 8 A to Cross sectional shape can for circle, it is same or similar with the vibrating diaphragm shape of the microphone 5 entered at sound, to depth h(h > 0.5mm) and setting for diameter d (0.5D < d < D) carries out relevant design with the diameter D of the microphone 5, meets requirement Size.The application of the preceding sound chamber 8 does not need the bore for increasing the sound inlet 7, not bright to the design of product Development is rung.For the bore of the sound inlet 7 depending on service condition, preferred bore is significantly less than the bore of the preceding sound chamber 8.Institute It states microphone structure not needing to replace the type of existing microphone, is applicable in the microphone of general type, be applicable in communication products range It is relatively wide.

It is further improved, as shown in figure 3, the preceding sound chamber 8 is set as trapezoidal in the direction depth h.The preceding sound chamber 8 Trapezoidal short side transmits, other meet function towards the sound inlet 7, trapezoidal long side towards the microphone 5 convenient for the aggregation of sound The shape that can be required.

It is further improved, in order to improve the waterproofness of the microphone structure, in the protective case 4 and the front housing 1 Junction be arranged waterproof miaow net 2.Microphone gasket 3 is set between the protective case 4 and waterproof miaow net 2, can be played certain Buffer protection function.As shown in Figures 2 and 3.

It should be noted that the utility model proposes a kind of microphone structure can be used for leading to for improving communication effect Letter field, such as the communication for maritime affairs building berth.The technical field that may be used on the microphone structure should be regarded as in this patent Protection scope in.

Embodiment 2

The utility model also proposed a kind of wired hand-held microphone 9, and as shown in Figure 4, Figure 5 and Figure 6, wired hand-held microphone 9 includes Main body 90, communication line 91 and connectivity port 92.The connectivity port 92 is used for and external communication device (such as maritime affairs building berth) electricity Connection, and be electrically connected with one end of the communication line 91, the other end of the communication line 91 is electrically connected with the main body 90.

Include above-mentioned microphone structure in the main body 90 of wired hand-held microphone 9, shown in C be Fig. 2 in Fig. 6 or Fig. 3 in Shown in microphone structure.Sound enters the sound inlet 7 of microphone structure, institute by the main body 90 of wired hand-held microphone 9 Sound chamber 8 makes sound generate the cutoff frequency of a high band before stating, so that intermediate frequency can be improved, reduces the dry sound of high frequency, reduces high frequency Duan Yanshen improves sound transfer efficiency, keeps sound effect bright and full, to improve sound quality.Sound is transmitted to described again Microphone 5 converts sound into electric signal by the microphone 5 and is transmitted to the pcb board 6.

The main body 90 further includes push-button unit and battery (not shown), and the push-button unit and battery are electrically connected With the pcb board 6, it is integrated with power circuit on the pcb board 6 and control chip, the battery pass through power circuit and control Chip is connected, wherein the push-button unit, for forming input signal for user selection mode；The control chip model It is preferred that but be not limited to AT89C51, it is used for according to input signal (such as from the voice signal of microphone input) output drive signal, Corresponding terminal device is driven to respond；The battery, for control chip, push-button unit and the microphone for pcb board 6 Deng offer power supply.

It is further improved, the push-button unit includes that the first button 93, the second button 94, third button 95 and call are pressed Key 97.First button 93 is also electrically connected with receiving unit, and first button 93 is with corresponding with common maritime affairs channel " 16 " icon can preferentially be transferred to maritime affairs channel CH16 or CH9 by pressing first button 93.Described is pressed again One button 93, can return to the working channel selected in the past.By pressing the third button 95, operating power is adjusted.It is described Second button 94 is also electrically connected with receiving unit, by pressing second button 94, the common working channel of interchangeable.Described The talk button 97 is set on the side of main body 90.When the talk button 97 described in the Continued depression, it can converse.Work as release When the talk button 97, terminate call.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change It also should be regarded as the protection scope of the utility model into replacement.

Claims (7)

1. a kind of microphone structure, which is characterized in that including front housing, protective case, microphone and circuit board, the microphone is placed in On the circuit board, the microphone is placed in the protective case, described to protect the inside for being placed on the front housing；Before described Sound inlet is set on shell, sound, the preceding sound chamber are transmitted by sound chamber before being arranged between the sound inlet and the microphone It is placed on the front housing.

2. microphone structure according to claim 1, which is characterized in that the preceding sound chamber is trapezoidal in depth direction.

3. microphone structure according to claim 1, which is characterized in that in the junction of the protective case and the front housing Waterproof miaow net is set.

4. microphone structure according to claim 3, which is characterized in that be arranged between the protective case and waterproof miaow net Microphone gasket.

5. microphone structure according to claim 4, which is characterized in that the protective case is silica gel miaow set.

6. microphone structure according to claim 1, which is characterized in that the bore of the sound inlet is less than the preceding sound chamber Bore.

7. a kind of wired hand-held microphone, including main body, communication line and connectivity port, connectivity port are electrically connected with one end of communication line, lead to The other end of letter line is electrically connected with main body, which is characterized in that main body includes the microphone knot as described in claim 1-6 is any Structure.