CN113873368B

CN113873368B - Switchable silicon microphone

Info

Publication number: CN113873368B
Application number: CN202111105561.4A
Authority: CN
Inventors: 田永超; 杨建德; 王林
Original assignee: Chongqing Huangge Shu Intelligent Sensor Research Institute Co ltd
Current assignee: Chongqing Huangge Shu Intelligent Sensor Research Institute Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2024-02-27
Anticipated expiration: 2041-09-22
Also published as: CN113873368A

Abstract

The invention discloses a switchable silicon microphone, and relates to the technical field of sound transmission equipment. The invention comprises a radio sleeve, a power supply frame, a mounting base, a battery and a silicon microphone radio column; an air compression chamber and a sound receiving pipe are arranged in the sound receiving sleeve, an air bag is arranged outside the sound receiving pipe, and the air bag is communicated with the air compression chamber. According to the invention, the sound pickup capability of the microphone to sound can be enhanced by arranging the sound pickup cover and picking up the sound of the surrounding environment of the microphone through the sound pickup elastic pieces in different areas; the sound signal is expanded step by utilizing mutual vibration among the sound receiving shrapnel in different areas by assembling a plurality of sound receiving shrapnels into an umbrella-shaped structure, so that the sensitivity of the microphone is enhanced; meanwhile, by arranging the air bag and the air compression chamber, the air bag is expanded and extruded to contact the sound receiving elastic sheet by utilizing the air pressure working principle, so that sound vibration and propagation of corresponding areas are prevented, and the targeted picking-up of sounds in different directions can be realized.

Description

Switchable silicon microphone

Technical Field

The invention belongs to the technical field of sound transmission equipment, and particularly relates to a switchable silicon microphone.

Background

Microphones are common sound collection and transmission devices, and silicon microphones are now increasingly used in a wide variety of electronic devices as technology advances. Microphones have directionality, i.e. the ability to pick up sounds from different directions; in the actual use scene of the microphone, the sounds in different directions are usually collected according to actual needs, and the existing microphone often lacks a device for adjusting, switching and picking up the sounds in different directions, so that the corresponding sound picking-up work is inconvenient according to the actual needs; also, we have therefore devised a switchable silicon microphone.

Disclosure of Invention

The invention aims to provide a switchable silicon microphone, which solves the problem that the existing silicon microphone lacks a device for adjusting, switching and picking up sounds in different directions.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a switchable silicon microphone, which comprises a sound receiving sleeve, a power supply frame and a mounting base, wherein a battery is arranged in the power supply frame and is electrically connected with a silicon microphone sound receiving column; the lower surface of the radio sleeve is in threaded connection with a power supply frame, and the power supply frame is clamped with the mounting base; the silicon microphone sound receiving column extends into the sound receiving sleeve;

the inner surface of the radio sleeve is welded with a plurality of air compression chambers which are sequentially adhered; the upper surface of the air compression chamber on the top layer is welded with a sound receiving pipe, and the peripheral side surface of the sound receiving pipe is welded with a plurality of sound transmission rods; a sound receiving cover is welded on one end face of the sound transmission rod, and the sound receiving cover is arranged between the sound receiving sleeve and the sound receiving pipe;

the sound receiving cover comprises a plurality of sound receiving elastic pieces, and the umbrella-shaped welding arrangement is arranged among the plurality of sound receiving elastic pieces, wherein the sound receiving elastic pieces are provided with a plurality of sound receiving areas from inside to outside and are expanded step by step, the sensitivity of the sound receiving area at the outermost layer is highest, the mutual vibration among the sound receiving elastic pieces can be utilized, the vibration signal can be enhanced step by step from outside to inside, and the collected sound signal can be expanded; the radio tube Zhou Cemian is provided with a plurality of air bags, the air bags are arranged between the radio elastic pieces and the radio tube, and when the air bags expand, the air bags can contact and squeeze the radio elastic pieces to isolate the sound transmission of the corresponding area positions; the air bag is communicated with the air compression chamber.

Further, the air compression chambers are all of annular box body structures, and the inner surfaces of the air compression chambers are adhered with baffle plates; the air compressing chamber is internally provided with an air compressing plate, the air compressing plate is in rotary fit with the air compressing chamber, the air compressing plate and the baffle are matched with the air compressing chamber to form a piston structure, and air in the air compressing chamber is extruded to enter the air bag and expand the air bag.

Further, the air pressure plate is of a sector plate structure, and the outer side face of the air pressure plate is provided with clamping teeth; the transmission gear is arranged on the outer side surface of the air compressor, and is meshed with the air pressure plate; wherein, different air bags correspond to the air compression chambers at different positions, so that the transmission gears corresponding to the air compression chambers are mutually independent.

Further, a plurality of driving gears are arranged between the air compression chamber and the radio sleeve, wherein the driving gears are of ring gear structures, and clamping teeth are arranged on the inner side surface and the outer side surface of the driving gears; the plurality of transmission gears are meshed with the driving gears to form a planetary gear structure, and the positions and the number of the driving gears are in one-to-one correspondence.

Further, one side surface of the radio cover is connected with a plurality of adjusting poking wheels in a shaft way, and the adjusting poking wheels are of a gear structure; the adjusting dial wheel is meshed with the driving gear; the positions and the number of the adjusting thumb wheels are adaptive to those of the driving gears, and the adjusting thumb wheels are mutually independent to rotate, so that the air bag expansion states of different positions can be adjusted, and further sound transmission of corresponding position areas is isolated.

Further, a plurality of sound receiving holes are formed in the peripheral side face of the sound receiving cover, and the sound receiving holes correspond to the sound receiving cover in position.

The invention has the following beneficial effects:

according to the invention, the sound pickup capability of the microphone to sound can be enhanced by arranging the sound pickup cover and picking up the sound of the surrounding environment of the microphone through the sound pickup elastic pieces in different areas; the sound signal is expanded step by utilizing mutual vibration among the sound receiving shrapnel in different areas by assembling a plurality of sound receiving shrapnels into an umbrella-shaped structure, so that the sensitivity of the microphone is enhanced; meanwhile, by arranging the air bag and the air compression chamber, the air bag is expanded and extruded to contact the sound receiving elastic sheet by utilizing the air pressure working principle, so that sound vibration and propagation of corresponding areas are prevented, and targeted pickup of sounds in different directions can be realized.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a switchable silicon microphone according to the present invention;

FIG. 2 is a partial, pictorial illustration of portion A of FIG. 1;

FIG. 3 is a top view of a switchable silicon microphone of the present invention;

FIG. 4 is a schematic view of the structure of section B-B in FIG. 3;

FIG. 5 is a partial, displayed view of portion C of FIG. 4;

FIG. 6 is a schematic view of the structure of section D-D in FIG. 4;

fig. 7 is a partially shown view of portion E in fig. 6.

In the drawings, the list of components represented by the various numbers is as follows:

1. a radio sleeve; 2. a power supply rack; 3. a mounting base; 4. a battery; 5. silicon microphone radio column; 101. an air compression chamber; 102. a radio tube; 103. a sound transmission rod; 104. a radio cover; 1041. a radio spring plate; 105. an air bag; 1011. a baffle; 1012. an air pressure plate; 1013. a transmission gear; 106. a drive gear; 107. adjusting the thumb wheel; 108. and (5) receiving a hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-7, the present invention is a switchable silicon microphone, which comprises a sound receiving sleeve 1, a power frame 2 and a mounting base 3, wherein a battery 4 is installed in the power frame 2, and the battery 4 is electrically connected with a silicon microphone sound receiving column 5; the lower surface of the radio sleeve 1 is in threaded connection with the power supply frame 2, and the power supply frame 2 is clamped with the mounting base 3; the silicon microphone sound receiving column 5 extends into the sound receiving sleeve 1;

the inner surface of the radio sleeve 1 is welded with a plurality of air compression chambers 101, and the air compression chambers 101 are sequentially adhered; the upper surface of the top air compression chamber 101 is welded with a sound receiving pipe 102, and the peripheral side surface of the sound receiving pipe 102 is welded with a plurality of sound transmission rods 103; a sound receiving cover 104 is welded on one end face of the sound transmission rod 103, and the sound receiving cover 104 is arranged between the sound receiving sleeve 1 and the sound receiving pipe 102;

the sound receiving cover 104 comprises a plurality of sound receiving elastic pieces 1041, and the umbrella-shaped welding arrangement is carried out among the plurality of sound receiving elastic pieces 1041, wherein the sound receiving elastic pieces 1041 are respectively provided with a plurality of sound receiving areas from inside to outside and are expanded step by step, the sensitivity of the sound receiving area at the outermost layer is highest, the mutual vibration among the sound receiving elastic pieces 1041 can be utilized, the vibration signal can be enhanced step by step from outside to inside, and the collected sound signal can be expanded; a plurality of air bags 105 are arranged on the peripheral side surface of the sound receiving tube 102, the air bags 105 are arranged between the sound receiving elastic sheet 1041 and the sound receiving tube 102, and when the air bags 105 are expanded, the air bags can contact and squeeze the sound receiving elastic sheet 1041 to isolate sound transmission at the corresponding area position; the bladder 105 communicates with the air pressure chamber 101.

Preferably, the air compression chambers 101 are all of annular box body structures, and the inner surfaces of the air compression chambers are adhered with baffle 1011; the air pressure plate 1012 is installed in the air pressure chamber 101, and the air pressure plate 1012 is in rotary fit with the air pressure chamber 101, wherein the air pressure plate 1012 and the baffle 1011 are matched with the air pressure chamber 101 to form a piston structure, and air in the air pressure chamber 101 is extruded to enter the air bag 105 and expand the air bag 105.

Example 2:

the air pressure plate 1012 is of a sector plate structure, and the outer side surface of the air pressure plate is provided with clamping teeth; the outer side surface of the air pressure chamber 101 is provided with a transmission gear 1013, and the transmission gear 1013 is meshed with the air pressure plate 1012; wherein different air bags 105 correspond to the air compression chambers 101 at different positions, and therefore the transmission gears 1013 corresponding to the air compression chambers 101 are also independent.

Preferably, a plurality of driving gears 106 are arranged between the air compression chamber 101 and the radio receiving sleeve 1, wherein the driving gears 106 are of a ring gear structure, and both inner and outer sides of the driving gears 106 are provided with clamping teeth; the plurality of transmission gears 1013 are meshed with the driving gears 106 to form a planetary gear structure, and the positions and the number of the driving gears 106 and the transmission gears 1013 are also in one-to-one correspondence.

Preferably, one side surface of the radio sleeve 1 is connected with a plurality of adjusting thumb wheels 107 through a shaft, and the adjusting thumb wheels 107 are of a gear structure; the adjusting dial wheel 107 is meshed with the driving gear 106; the positions and the number of the adjusting thumb wheels 107 are adapted to those of the driving gears 106, and the adjusting thumb wheels 107 are rotated independently of each other, so that the expansion states of the air bags 105 at different positions can be adjusted, and further sound transmission in corresponding position areas is isolated.

Preferably, a plurality of sound receiving holes 108 are formed on the peripheral side surface of the sound receiving sleeve 1, and the sound receiving holes 108 correspond to the positions of the sound receiving cover 104.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A switchable silicon microphone comprises a radio sleeve (1), a power supply frame (2) and a mounting base (3), wherein a battery (4) is arranged in the power supply frame (2), and the battery (4) is electrically connected with a silicon microphone radio column (5); the method is characterized in that: the lower surface of the radio sleeve (1) is in threaded connection with the power supply frame (2), and the power supply frame (2) is clamped with the mounting base (3); the silicon microphone sound receiving column (5) extends into the sound receiving sleeve (1);

the inner surface of the radio sleeve (1) is welded with a plurality of air compression chambers (101), and the air compression chambers (101) are sequentially adhered; the upper surface of the air compression chamber (101) at the top layer is welded with a sound receiving pipe (102), and the peripheral side surface of the sound receiving pipe (102) is welded with a plurality of sound transmission rods (103); a sound receiving cover (104) is welded on one end face of the sound transmission rod (103), and the sound receiving cover (104) is arranged between the sound receiving sleeve (1) and the sound receiving pipe (102);

the radio cover (104) comprises a plurality of radio spring pieces (1041), and the radio spring pieces (1041) are arranged in an umbrella-shaped welding manner; the radio tube (102) Zhou Cemian is provided with a plurality of air bags (105), and the air bags (105) are arranged between the radio spring plate (1041) and the radio tube (102); the air bag (105) is communicated with the air compression chamber (101);

the air compression chambers (101) are all of annular box body structures, and baffle plates (1011) are adhered to the inner surfaces of the air compression chambers; an air pressure plate (1012) is arranged in the air pressure chamber (101), and the air pressure plate (1012) is in rotary fit with the air pressure chamber (101);

the air pressure plate (1012) is of a sector plate structure, and the outer side surface of the air pressure plate is provided with clamping teeth; a transmission gear (1013) is arranged on the outer side surface of the air pressure chamber (101), and the transmission gear (1013) is meshed with the air pressure plate (1012);

a plurality of driving gears (106) are arranged between the air compression chamber (101) and the radio sleeve (1), wherein the driving gears (106) are of a ring gear structure, and both inner and outer side surfaces of the driving gears are provided with clamping teeth; the transmission gears (1013) are meshed with the driving gears (106) to form a planetary gear structure;

one side surface of the radio sleeve (1) is connected with a plurality of adjusting thumb wheels (107) through a shaft, and the adjusting thumb wheels (107) are of a gear structure; the adjusting dial wheel (107) is meshed with the driving gear (106).

2. A switchable silicon microphone according to claim 1, characterized in that the adjustment thumb wheel (107) is adapted to the position and number of the drive gears (106) and that several adjustment thumb wheels (107) are rotated independently of each other.

3. The switchable silicon microphone of claim 2, wherein a plurality of sound receiving holes (108) are formed in the peripheral side surface of the sound receiving sleeve (1), and the sound receiving holes (108) correspond to the sound receiving cover (104).