CN110300343B

CN110300343B - Outdoor pickup equipment

Info

Publication number: CN110300343B
Application number: CN201910369836.1A
Authority: CN
Inventors: 王建忠
Original assignee: Shenzhen Wan District Communication Technology Co ltd
Current assignee: Shenzhen Wan District Communication Technology Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2021-07-13
Anticipated expiration: 2039-04-30
Also published as: CN110300343A

Abstract

The invention provides an outdoor sound pickup device, comprising: the shell is provided with an installation cavity, and an opening is formed in the shell; the isolating piece is arranged on the shell and is positioned in the mounting cavity, a sound transmission hole is formed in the isolating piece, and the isolating piece and the bottom wall of the mounting cavity enclose a sound pickup cavity; the pickup piece comprises an acoustoelectric conversion device and a low-noise audio signal amplification circuit, and is arranged in the pickup cavity; wherein, the main part of separator with the casing leaves the clearance, and external sound is followed the clearance spreads into in the installation cavity and by spread into after the diapire reflection of installation cavity pickup spare. The outdoor pickup equipment provided by the invention isolates the pickup piece from the external environment, so that the pickup piece is prevented from picking up wind noise, the probability of picking up wind noise by the pickup is greatly reduced, the pickup quality of the pickup piece is improved, meanwhile, external rainwater is isolated from the pickup piece by the isolating piece, the internal structure of the equipment is prevented from being affected with damp or water, and the service life of the product is prolonged.

Description

Outdoor pickup equipment

Technical Field

The invention relates to the field of audio equipment, in particular to outdoor sound pickup equipment.

Background

Because the sound needs pass through the air conduction in consideration of sound, at present, the surface of adapter all leaves the sound transmission hole so that sound gets into the adapter through the sound transmission hole and acquires sound, when this kind of adapter is used in the open air, because the sound transmission hole is located the surface of adapter, very easily leads to equipment inner structure to wet or intake, causes the influence to the working property of equipment, leads to equipment to rust the damage even when serious.

Disclosure of Invention

The invention mainly aims to provide an outdoor sound pickup device, and aims to solve the problems that when the sound pickup device is used outdoors, the sound transmission holes are positioned on the surface of the sound pickup device, the internal structure of the device is easily affected by damp or water, the working performance of the device is affected, and even the device is rusted and damaged when the device is serious.

In order to achieve the above object, the present invention provides an outdoor sound pickup apparatus, including: the shell is provided with an installation cavity, and an opening is formed in the shell; the isolating piece is arranged on the shell and is positioned in the mounting cavity, and the isolating piece and the bottom wall of the mounting cavity enclose a sound collecting cavity; the pickup piece comprises an acoustoelectric conversion device and a low-noise audio signal amplification circuit, and is arranged in the pickup cavity; wherein, the main part of separator with the casing leaves the clearance, and external sound is followed the clearance spreads into in the installation cavity and by spread into after the diapire reflection of installation cavity pickup spare.

Preferably, the isolating piece is concavely provided with a groove, the groove and the bottom wall of the mounting cavity enclose to form the sound pickup cavity, and the sound pickup piece is mounted in the sound pickup cavity.

Preferably, outdoor pickup equipment still includes the miaow head cover, the miaow head cover parcel is in the surface of pickup spare, with pickup spare sets up jointly in the recess.

Preferably, the notch circumference of recess has the round division board in the surrounding, be equipped with the fixed column on the division board, the fixed column with diapire fixed connection.

Preferably, the position of the sound transmission hole is staggered with the position of the fixing column.

Preferably, outdoor pickup equipment still includes the sound net, be provided with the arch on the sound net, the sound net fixed orifices has been seted up on the inner wall of installation cavity, the arch is inserted in order to fix in the sound net fixed orifices the sound net.

Preferably, a through hole is formed in the bottom wall, and a connecting wire of the outdoor sound pickup equipment is led out from the through hole.

Preferably, the housing extends in the mounting direction to form a stud, and the outer surface of the stud is provided with threads.

Preferably, the isolation piece is plastic, and the shell is made of stainless steel materials.

According to the technical scheme, the isolating piece is arranged in the shell of the pickup equipment, the isolating piece is arranged in the mounting cavity of the shell and surrounds the bottom wall of the device cavity to form a pickup cavity, the pickup piece is arranged in the pickup cavity, a gap is reserved between the main body of the isolating piece and the shell, and external sound is transmitted into the mounting cavity from the gap and the sound transmission holes in the isolating piece and is reflected by the bottom wall of the mounting cavity and then transmitted into the pickup piece, so that the pickup piece can pick up the sound without obstacles. Because the pickup piece is in the pickup cavity, the spacer keeps apart pickup piece and external environment and is not direct contact, consequently, wind can not form the convection current on the surface of pickup piece, thereby avoided the pickup piece to pick up the wind sound, greatly reduced the probability that the pickup picked up wind and made an uproar, the pickup quality of pickup piece has been improved, and simultaneously, the spacer also keeps apart external rainwater and pickup piece, avoided equipment inner structure to wet or intake, the life of product has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of an outdoor sound pickup apparatus according to the present invention;

FIG. 2 is a schematic view of a spacer for an outdoor sound pickup apparatus according to the present invention;

fig. 3 is a schematic structural diagram of a housing of the outdoor sound pickup apparatus according to the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, the present invention provides an outdoor sound pickup apparatus, including: the shell 10, the shell 10 has a mounting cavity 14, the shell 10 is provided with an opening; a partition 20, wherein the partition 20 is mounted on the housing 10 and located in the mounting cavity 14, and the partition 20 and a bottom wall (not shown) of the mounting cavity 14 enclose a sound-collecting cavity (not shown); the pickup piece 30 is arranged in the pickup cavity; a gap is left between the main body of the spacer 20 and the housing 10, and external sound is transmitted into the mounting cavity 14 from the gap and the sound transmission hole 22 on the spacer 20, and is reflected by the bottom wall of the mounting cavity 14 and then transmitted into the sound pickup 30.

In this embodiment, the mounting chamber 14 has a side wall (not shown) and a bottom wall, the side wall is an annular wall, and the opening is opposite to the bottom wall to communicate the mounting chamber 14 with the external environment, so as to ensure that sound can enter the mounting chamber 14 through the opening. The partition 20 is installed on the bottom wall of the installation cavity 14, and encloses with the bottom wall of the installation cavity 14 to form a sound-collecting cavity, and the sound-collecting piece 30 is located in the sound-collecting cavity. In order to make the sound pickup element 30 clearly pick up sound, there is a gap between the main body and the bottom wall of the isolation element 20, and the isolation element 20 has a sound transmission hole 22 for sound to pass through, in a preferred embodiment, the main body of the isolation element 20 is circular (as shown in fig. 2), and the diameter of the main body is smaller than that of the annular wall, after the isolation element 20 is installed in the installation cavity 14, there is a gap between the main body of the isolation element 20 and the annular wall, and at the same time, there is a gap between the main body of the isolation element 20 and the bottom wall of the installation cavity 14 for sound to be transmitted into the sound pickup cavity. Pickup piece 30 is located installation cavity 14, has seted up the sound picking-up hole on it in order to pick up sound, and sound gets into the sound picking-up cavity back along the clearance from the opening, and partly can directly get into pickup piece 30 through the sound picking-up hole, and another part can get into the sound picking-up cavity through the reflection of diapire to guarantee good pickup effect. The sound pickup element 20 includes an acoustoelectric conversion device (not shown) and a low-noise audio signal amplification circuit (not shown), the acoustoelectric conversion device of the sound pickup element 20 picks up sound and converts the sound into an electrical signal, the low-noise audio signal amplification circuit processes the sound signal, and the processed sound signal is transmitted to a rear-stage circuit through a connection line 31.

Casing 10 shelters from outdoor most crosswind, and spacer 20 and casing 10 form two barrier layers, have cut off the route of air convection, have shielded the outer wind sound of casing 10, and what consequently pickup piece 30 picked up is the pure speech signal who has got rid of wind noise, reaches the effect of preventing wind, can not appear because wind noise is too big and not hear the condition of normal sound, has improved pickup piece 30's pickup quality. Casing 10 shelters from outdoor most rainwater, and the fractional part rainwater flows by the separation of separator 20 at 14 inner walls of installation cavity, unable inner structure that gets into to because pickup hole of pickup piece 30 does not directly outwards, so the rainwater can't get into by pickup hole, and external rainwater is difficult to and pickup piece 30 contact, has avoided equipment inner structure to wet or intake, has improved the life of product.

Optionally, the partition 20 is concavely provided with a groove 24, the groove 24 and the bottom wall of the mounting cavity 14 enclose the sound pickup cavity, and the sound pickup piece 30 is mounted in the sound pickup cavity.

In specific implementation, recess 24 is located the intermediate position of separator 20, form the pickup cavity by recess 24 and diapire, pickup 30 is located recess 24, even there is a small amount of rainwater to get into installation cavity 14 from the gap of separator 20 and casing 10 and also can not flow into recess 24, the inside of rainwater entering pickup 30 from the pickup hole has been avoided, the diapire reflects sound into recess 24 after sound entering pickup cavity, get into pickup 30 from the pickup hole on pickup 30 surface, wind is outside by casing 10 and the separation of separator 20, can not form the convection current on the surface of pickup 30, greatly reduced pickup 30 pick up the probability of wind noise, the audio of pickup equipment has been guaranteed. The outdoor sound pickup equipment can achieve IP 67-grade waterproof capability, can prevent outdoor wind noise, and is suitable for outdoor use and severe weather.

Further, the outdoor sound pickup equipment further comprises a microphone cover 40, wherein the microphone cover 40 is wrapped on the surface of the sound pickup piece 30 and is arranged in the groove 24 together with the sound pickup piece 30.

The microphone cover 40 is sleeved on the surface of the sound pickup piece 30 and is arranged in the groove 24 together with the sound pickup piece 30, the microphone cover 40 is filled in a gap between the inner wall of the groove 24 and the sound pickup piece 30, so that the effects of buffering, damping and fastening the sound pickup piece 30 can be achieved, the sound pickup piece 30 is prevented from being separated from the groove 24, the sound pickup piece 30 can be protected when the sound pickup equipment is subjected to external force, and the sound pickup piece 30 is prevented from colliding with the inner wall of the groove 24 to pick up collision noise; meanwhile, the microphone cover 40 also has a waterproof function to protect the sound pickup member 30 therein from contacting water.

Specifically, the side wall of the groove 24 is further provided with an outlet groove 23, and the connecting line 31 of the sound pickup piece 30 is led out from the outlet groove 23; a through hole 13 is formed in the bottom wall, and a connecting wire 31 of the outdoor sound pickup equipment is led out from the through hole 13.

The connecting line 31 of the pickup piece 30 is led out from the wire outlet groove 23, so that the microphone cover 40 can be tightly attached to the inner wall of the groove 24, the inner wall of the microphone cover 40 and the inner wall of the groove 24 cannot be attached due to the existence of the connecting line 31, vibration cannot be generated due to collision of the pickup piece 30 and the inner wall of the groove 24, and pickup quality of pickup equipment is guaranteed. The through hole 13 on the bottom wall is opened corresponding to the outlet groove 23, in this embodiment, the sound pickup element 30 is an electret microphone, the electret microphone includes a vibrating membrane and a sound processing circuit inside, the processed sound is led out from the outlet groove 23 through the connecting wire 31 and then directly passes through the through hole 13 to be connected with an external device, and the processed sound transmits an electrical signal to a post-stage circuit. In this embodiment, the connecting wire 31 is a 2pin wire.

As an embodiment, as shown in fig. 2, a circle of isolation plates 25 surrounds the circumferential direction of the notch of the groove 24, and a fixing column 21 is arranged on the isolation plates 25, and the fixing column 21 is fixedly connected with the bottom wall.

The fixing posts 21 protrude from the surface of the isolation plate 25, so that after the isolation member 20 is fixed on the bottom wall of the mounting cavity 14 through the fixing posts 21, a gap is formed between the bottom wall and the isolation plate 25, so that the sound collecting cavity is communicated with the outside, and a sound transmission channel is formed. The fixing post 21 is a hollow structure, a mounting hole (not shown) is formed in the bottom wall corresponding to the position of the fixing post 21, and the fixing post 21 and the mounting hole are matched to form a threaded connection so as to fix the partition 20 in the mounting cavity 14. In the preferred embodiment, the number of the fixing posts 21 is three, and the fixing posts are circumferentially and uniformly distributed on the isolation plate 25, so that the force applied to the isolation plate 25 is balanced.

Furthermore, the isolation plate 25 is provided with sound transmission holes 22, and the positions of the sound transmission holes 22 are staggered with the positions of the fixing posts 21.

The sound transmission hole 22 formed in the isolation plate 25 ensures that external sound can be fully transmitted into the sound pickup cavity, the sound pickup piece 30 can obtain enough sound volume, and the position where the sound transmission hole 22 is formed is staggered with the position where the fixed column 21 is formed. In the preferred embodiment, three sound transmission holes 22 are formed between two fixing posts 21.

Outdoor pickup equipment still includes sound net (not marking in the figure), be provided with the arch on the sound net, sound net fixed orifices 11 have been seted up on the inner wall of installation cavity 14, the arch is inserted in order to fix in the sound net fixed orifices 11 the sound net.

In a specific implementation, the sound net fixing holes 11 are directly formed in the inner wall of the mounting cavity 14, the protrusions on the sound net are inserted into the sound net fixing holes 11 to fix the sound net, and the sound net is located at the opening of the shell 10 to prevent foreign matters from entering the mounting cavity 14 and protect devices in the mounting cavity 14. It can be understood that the sound net fixing holes 11 may also be formed by inserting a layer of sound net fixing ring into the mounting cavity 14, at this time, at a position (not marked in the figure) corresponding to the sound net on which a protrusion is disposed, a gap between the sound net fixing ring and the inner wall of the mounting cavity 14 is larger than gaps at other positions to form the sound net fixing holes 11, and the purpose of fixing the sound net can also be achieved by inserting the protrusion into the sound net fixing holes 11.

Specifically, the housing 10 extends to the installation direction to form a stud 12, the outer surface of the stud 12 is provided with threads, and the threads and external equipment form a tight structure, so that the waterproof effect is achieved, and rainwater is prevented from entering the interior of a product from the interface.

In this embodiment, the outdoor sound pickup device is fixedly connected to the external device through the stud 12, the outer surface of the stud 12 is provided with threads to achieve threaded connection between the outdoor sound pickup device and the external device, and installation can be completed through simple rotation.

In one embodiment, the spacer 20 is made of plastic, and the housing 10 is made of stainless steel.

Stainless steel material has better reflex action to sound, and sound transmits into the pickup intracavity, and the metal wall and the plastic isolator 20 of casing 10 reflect sound, accomplish the picking up of sound and convert into the signal of telecommunication by the acoustoelectric conversion device of pickup 20, accomplish the signal processing to sound by low noise audio signal amplifier circuit, export for the back stage circuit by connecting wire 31, and in the preferred embodiment, the pick-up hole of pickup 20 is just to the chamber wall of installation cavity 14, can effectively pick up the sound that is reflected like this.

The isolation piece 20 is made of plastic materials, can play an insulating role, and can prevent the isolation piece from being corroded and rusted after contacting with rainwater.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An outdoor pickup apparatus, characterized in that, outdoor pickup apparatus includes:

the shell is provided with an installation cavity, and an opening is formed in the shell;

the isolating piece is arranged on the shell and is positioned in the mounting cavity, a sound transmission hole is formed in the isolating piece, a groove is formed in the middle of the isolating piece, and the groove and the bottom wall of the mounting cavity form a sound pickup cavity;

the sound pickup piece comprises an acoustoelectric conversion device and a low-noise audio signal amplification circuit, the sound pickup piece is arranged in the groove, and a sound pickup hole of the sound pickup piece is over against the bottom wall of the installation cavity so as to effectively pick up the sound reflected by the bottom wall of the installation cavity;

a gap is reserved between the main body of the isolating piece and the shell, and external sound is transmitted into the mounting cavity from the gap, reflected by the bottom wall of the mounting cavity and then transmitted into the sound pickup piece;

the groove is characterized in that a circle of isolation plate is circumferentially wound around the groove opening of the groove, a fixing column is arranged on the isolation plate, and the fixing column is fixedly connected with the bottom wall.

2. The outdoor sound pickup device as claimed in claim 1, further comprising a microphone cap covering the surface of the sound pickup member and disposed in the groove together with the sound pickup member.

3. The outdoor sound pickup device as claimed in claim 1, wherein a wire outlet groove is further formed in a side wall of the groove, and a connection wire of the sound pickup member is led out from the wire outlet groove.

4. The outdoor sound pickup apparatus as claimed in claim 1, wherein the positions of the sound transmission holes are staggered from the positions of the fixing posts.

5. The outdoor sound pickup device according to claim 1, further comprising a sound net, wherein a protrusion is disposed on the sound net, a sound net fixing hole is formed in a side wall of the mounting cavity, and the protrusion is inserted into the sound net fixing hole to fix the sound net.

6. The outdoor sound pickup device as claimed in claim 1, wherein the bottom wall is formed with a through hole, and a connection wire of the outdoor sound pickup device is led out from the through hole.

7. The outdoor sound pickup apparatus as claimed in claim 1, wherein a stud is extended from the housing in a mounting direction, and a thread is provided on an outer surface of the stud.

8. The outdoor sound pickup apparatus as claimed in claim 1, wherein the partition is made of plastic, and the housing is made of stainless steel.