CN115211136A

CN115211136A - Microphone device

Info

Publication number: CN115211136A
Application number: CN202080097920.3A
Authority: CN
Inventors: 李建成
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-10-18
Also published as: WO2022094930A1

Abstract

The invention provides a microphone apparatus. The invention provides microphone equipment which comprises an installation frame, three support frames and three microphone boards; dividing three sector areas with central angles of 120 degrees by taking the center of the mounting frame as a circle center, wherein each sector area is fixedly provided with one support frame; every all install one on the support frame the microphone board, be provided with at least one pick-up hole on the microphone board, the microphone board is relative the installing frame dorsad the angle is predetermine in the center slope of installing frame to the increase pickup direction improves the homogeneity of pickup, reduces the reflection of sound wave, and then improves the pickup effect, improves tone quality.

Description

Microphone device

Technical Field

The invention relates to the technical field of audio frequency, in particular to microphone equipment

Background

A microphone is an energy conversion device capable of converting a sound signal into an electrical signal. Microphones are used in various fields, for example in conference rooms, where a number of microphones are placed on a table to pick up sound at different locations.

A microphone generally includes a housing, a circuit board, and a sound pickup element, wherein the sound pickup element is integrated on the circuit board, and the circuit board is mounted in the housing; and the shell is provided with an opening hole which is opposite to the sound pickup element, so that the sound signal passes through the opening hole to be picked up by the sound pickup element.

However, the sound pickup element is integrated on the circuit board, and the sound pickup effect in the direction opposite to the opening hole is good, and the sound pickup effect is poor in other directions, so that the sound pickup is not uniform, and the sound pickup effect of the microphone is poor, and the sound quality is affected.

Disclosure of Invention

The present invention provides a microphone apparatus, comprising: the microphone comprises an installation frame, three support frames and three microphone boards; dividing three sector areas with central angles of 120 degrees by taking the center of the mounting frame as a circle center, wherein each sector area is fixedly provided with one support frame; each support frame is provided with one microphone board, at least one pickup hole is formed in each microphone board, and the microphone boards are inclined at a preset angle relative to the center of the mounting frame and back to the center of the mounting frame.

The invention has the technical effects that: the microphone device comprises a mounting frame, three support frames and three microphone boards; dividing three sector areas with central angles of 120 degrees by taking the center of the mounting frame as a circle center, wherein each sector area is fixedly provided with one support frame; every all install one on the support frame the microphone board, be provided with at least one pick-up hole on the microphone board, the microphone board is relative the installing frame dorsad the angle is predetermine in the center slope of installing frame to the increase pickup direction improves the homogeneity of pickup, reduces the reflection of sound wave, and then improves the pickup effect, improves tone quality.

Drawings

Fig. 1 is an exploded view of a microphone apparatus provided by an embodiment of the present invention;

fig. 2 is a sectional view of a microphone apparatus provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of P in FIG. 2;

fig. 4 is a schematic view of a direction of the mounting frame, the microphone board and the control motherboard according to a first embodiment of the present invention;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a front view of FIG. 4;

fig. 7 is a schematic view of another direction of the mounting frame, the microphone board and the control motherboard according to an embodiment of the invention;

fig. 8 is a schematic structural diagram of a supporting frame of a microphone apparatus according to an embodiment of the present invention;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a left side view of FIG. 8;

fig. 11 is a schematic structural diagram of an installation frame according to a first embodiment of the present invention;

fig. 12 is a schematic view of an installation frame, a microphone board and a control motherboard according to a second embodiment of the present invention;

fig. 13 is a schematic view of an orientation of a first housing of a microphone apparatus according to an embodiment of the present invention;

fig. 14 is a schematic view of another orientation of the first housing of the microphone apparatus provided by the embodiment of the invention;

fig. 15 is a schematic view of a first housing of a microphone apparatus according to an embodiment of the present invention.

Detailed Description

The existing pickup element is integrated on a circuit board, and has poor sound signal effect on the relative plane of the opening hole, and poor pickup effect on sounds in other directions, so that pickup is uneven, and the pickup effect of the microphone is poor.

In view of the above, the present invention provides a novel microphone apparatus, which includes a mounting frame, three supporting frames and three microphone boards, wherein a central angle of the three sector areas is 120 degrees is defined by taking the center of the mounting frame as a circle center, each sector area is fixed with one supporting frame, each supporting frame is provided with one microphone board, each microphone board is provided with at least one sound pickup hole, and the microphone boards are inclined at a preset angle with respect to the center of the mounting frame, which is opposite to the center of the mounting frame, so that sounds in multiple directions can be picked up, uniformity of sound pickup is improved, sound pickup direction is increased, reflection of sound waves is reduced, and sound pickup effect is improved.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 3, an embodiment of the present invention provides a microphone apparatus, including: the microphone comprises an installation frame 1, three support frames 2 and three microphone boards 3; dividing three sector areas 10 with a central angle of 120 degrees by taking the center of the mounting frame 1 as a circle center, wherein each sector area 10 is fixedly provided with a support frame 2; the support frames 2 are fixed on one side of the mounting frame 1, each support frame 2 is provided with a microphone board 3, each microphone board 3 is in a strip shape, and at least one sound pickup hole is formed in each microphone board 3; the microphone boards 3 are inclined at a preset angle relative to the center of the mounting frame 1, which is opposite to the center of the mounting frame 1, and projection extension lines of the three microphone boards 3 on the mounting frame 1 form a triangular structure, namely, a ray formed by the projection of each microphone board 3 on the mounting frame 1 forms one side of the triangular structure. In the present embodiment, the projection is an orthogonal projection.

Wherein, installing frame 1 is as the structure of erection bracing frame 2 and microphone board 3, and its structure can have the multiple, for example, installing frame 1 includes the fixed plate and sets up the fixed column in fixed plate one side, and the fixed column is connected with the shell of microphone equipment, and the fixed plate is connected with support frame 2. For another example, the mounting frame 1 includes a mounting plate in the middle and a frame disposed at the edge of the mounting plate, the supporting frame 2 is fixed on the mounting plate, the mounting plate is clamped with the housing of the microphone device, and the frame plays a role in shielding the gap.

Illustratively, referring to fig. 5, the mounting frame 1 is a circular structure, and three sector regions 10 with a central angle of 120 degrees are formed by dividing a circle by the center of the circular structure, that is, the circular mounting frame 1 is divided into three identical sector regions 10. For the convenience of installation, three separation strips 19 are arranged on the installation frame 1, and the separation strips 19 divide the circular installation frame 1 into three fan-shaped areas 10. Of course, the division bar 19 may also serve to reinforce the structural strength of the mounting frame 1.

The both ends of support frame 2 are connected with installing frame 1 and microphone board 3 respectively for support certain height with microphone board 3, make microphone board 3 have the interval with installing frame 1, improve microphone board 3's pickup ability, avoid the structure on the installing frame 1 to shelter from microphone board 3 and lead to the pickup effect poor.

The microphone board 3 is a structure for picking up sound signals, and includes a PCB board and a sound pickup element integrated on the PCB board, and a sound pickup hole is provided in the PCB board. Pickup element is integrated at the dorsal part of PCB board usually, and the pick-up hole is relative with pickup element, and pickup hole runs through the PCB board to make sound can pass the pick-up hole and be picked up by pickup element. For example, as shown in fig. 4 and 6, the microphone board 3 is provided with a first sound pickup hole 31 and a second sound pickup hole 32, and one sound pickup element is provided at corresponding positions of the first sound pickup hole 31 and the second sound pickup hole 32, respectively. The pickup hole can be for setting up the circular port on mike's board 3, and convenient processing is favorable to improving the pickup effect.

The microphone device provided by the embodiment of the invention comprises three support frames 2 and three microphone boards 3, wherein each support frame 2 is provided with one microphone board 3, namely, the support frames 2 correspond to the microphone boards 3 one by one.

The three microphone boards 3 form a triangular structure in projection on the mounting frame 1, and in some embodiments, the three microphone boards 3 are sequentially arranged along the edge of the mounting frame 1 to form a triangle.

It is to be understood that "triangular structure" is to be understood in a broad sense: when the three microphone boards 3 are sequentially contacted end to end, the projection on the mounting frame 1 is a closed triangle; and when the three microphone boards 3 are spaced from each other end to end, the projection on the mounting frame 1 is an open triangular structure.

Therefore, the microphone device provided by the embodiment of the invention comprises an installation frame 1, three support frames 2 and three microphone boards 3; the method comprises the following steps that three fan-shaped areas 10 with a central angle of 120 degrees are divided by taking the center of an installation frame 1 as a circle center, a support frame 2 is fixed in each fan-shaped area 10, two ends of each support frame 2 are respectively connected with the installation frame 1 and a microphone board 3, the microphone boards 3 are supported by the support frames 2 to be far away from the installation frame 1, and the problem that poor pickup effect is caused by the fact that the microphone boards 3 are shielded by structures on the installation frame 1 is avoided; the microphone board 3 is strip-shaped, and at least one sound pickup hole is arranged on the microphone board 3 to pick up sound; three microphone board 3 is in the different fan-shaped region 10 on installing frame 1, and the relative installing frame 1 of microphone board 3 center slope of installing frame 1 dorsad predetermines the angle for the sound of a plurality of directions can be picked up towards different directions to the sound pickup hole on the different microphone boards 3, increases the pickup direction, improves the homogeneity of pickup, reduces the reflection of sound wave, and then improves the pickup effect, improves tone quality.

In a possible implementation, the microphone board 3 has a long side and a short side, and the preset angle includes a second preset angle and/or a third preset angle. The microphone board 3 is inclined at a second preset angle relative to the mounting frame 1 along the long side direction thereof, and/or the microphone board 3 is inclined at a third preset angle relative to the mounting frame 1 along the short side direction thereof. In a specific implementation manner, the microphone board 3 is a rectangular board or a similar rectangular board; the microphone board 3 inclines a second preset angle relative to the mounting frame 1 along the length direction L; and/or the microphone board 3 is inclined by a third preset angle relative to the mounting frame 1 along the width direction W thereof.

For convenience of description, a face formed by the long side and the wide side of the rectangular microphone board 3 is defined as a long wide side, and a face formed by the long side and the high side in the thickness direction of the rectangular microphone board 3 is defined as a long high side.

The microphone board 3 is inclined by a second predetermined angle with respect to the mounting frame 1 along the length direction L thereof, that is, the long and wide sides of the microphone board 3 are inclined by the second predetermined angle with respect to the mounting frame 1. That is, the two ends of the microphone board 3 in the length direction L thereof are different in vertical distance from the mounting frame 1. So be favorable to widening the pickup direction, and then improve the pickup effect. Illustratively, referring to fig. 6 and 9, the height of the first upright post 22 of the support frame 2, which will be described below, is higher than the height of the second upright post 23, so that the microphone board 3 is inclined with respect to the mounting frame 1 along the length direction L thereof.

The microphone board 3 is inclined at a third preset angle with respect to the mounting frame 1 along the width direction W thereof, that is, the long and high sides of the microphone board 3 are inclined at the third preset angle with respect to the mounting frame 1. That is, the two ends of the microphone board 3 along the width direction W have different vertical distances from the mounting frame 1, and the vertical distance between the inner end of the microphone board 3 along the width direction W and the mounting frame 1 is greater than the vertical distance between the outer end of the microphone board 3 and the mounting frame 1, so that the microphone board 3 is inclined outwards, which is beneficial to increasing the sound pickup direction of the microphone board 3. Illustratively, referring to fig. 6 and 10, the first support wall 241 of the fixing seat 24 of the support stand 2, which will be described below, is inclined inward relative to the plate surface of the support plate 21 so as to incline the microphone plate 3 relative to the mounting frame 1 in the width direction W thereof.

The embodiment of the present invention does not limit the specific numerical values of the second preset angle and the third preset angle, and those skilled in the art can set the values according to actual situations.

Referring to fig. 8 to 10, in some examples, the supporting frame 2 includes a supporting plate 21, and a first upright 22 and a second upright 23 disposed at two ends of the supporting plate 21 at an interval, the supporting plate 21 is fixedly connected to the mounting frame 1, the first upright 22 is fixedly connected to one end of the microphone board 3, and the second upright 23 is fixedly connected to the other end of the microphone board 3.

Specifically, the supporting plate 21 may be a rectangular plate, a circular plate, an elliptical plate, or the like, and optionally, the supporting plate 21 is a rectangular plate, which is convenient to process and install. The two ends of the supporting plate 21 are respectively provided with a first upright column 22 and a second upright column 23, optionally, the supporting plate 21, the first upright column 22 and the second upright column 23 are integrally formed, which is favorable for improving the structural strength and stability.

The support frame 2 is fixedly connected with the mounting frame 1 through the support plate 21, so that the connection area between the support plate 21 and the mounting frame 1 is increased, and the stability of the support frame 2 for supporting the microphone board 3 is further improved; in addition, the first upright column 22 and the second upright column 23 are respectively arranged at the two ends of the supporting plate 21 and fixedly connected with the microphone board 3, so that the stability of the supporting frame 2 for supporting the microphone board 3 is further improved.

In some embodiments, the first upright 22 and the second upright 23 are the same height, and the microphone board 3 is disposed parallel to the support plate 21. In other embodiments, the height of the first upright 22 is greater than the height of the second upright 23, i.e., the height of the first upright 22 perpendicular to the support plate 21 is greater, while the height of the second upright 23 perpendicular to the support plate 21 is lower. The end of the microphone board 3 connected to the first upright 22 is the higher end, and the end of the microphone board 3 connected to the second upright 23 is the lower end. In the case where the intervals between the first upright 22 and the second upright 23 are the same, the first upright 22 is higher than the second upright 23, which is advantageous for supporting the microphone board 3 having a larger length dimension, and for widening the sound pickup direction, compared to the case where the heights of the first upright 22 and the second upright 23 are the same.

In this embodiment, the height that highly is higher than second stand 23 through setting up first stand 22 for microphone board 3 is installed along its length direction slope, so is favorable to widening the pickup direction, and then improves the pickup effect.

And the first upright 22 of a support frame 2 is adjacent to the second upright 23 of an adjacent support frame 2. That is to say, the first upright post 22 of one support frame 2 is closer to the second upright post 23 of the adjacent support frame 2, so that in the circumferential direction of the triangular structure, three microphone boards 3 form a ' high, low, high and low ' \ 8230 \ 8230; ' undulating structure, that is, in the circumferential direction of the triangular structure, the higher end and the lower end between two adjacent microphone boards 3 are close to each other, and the arrangement is favorable for widening the pickup direction and reducing the reflection of sound waves.

The first and

second columns

22 and 23 may be disposed perpendicular to the support plate 21, or the first and

second columns

22 and 23 may be disposed obliquely with respect to the support plate 21. Referring specifically to fig. 9, the first upright column 22 is parallel to the second upright column 23, and a preset inclination angle λ is formed between the first upright column 22 and the support plate 21, wherein the inclination angle λ ranges from 30 ° to 45 ° or from 45 ° to 60 °. In the case where the first upright 22 and the second upright 23 are the same in length, when the first upright 22 and the second upright 23 are disposed obliquely with respect to the vertical arrangement, the angle of inclination of the microphone board 3 with respect to the support plate 21 is larger, which is advantageous in increasing the sound pickup area.

The fixed connection of the first upright 22 and the second upright 23 to the microphone board 3 may be the same or different. In this embodiment, the first upright column 22 and the second upright column 23 are fixedly connected with the microphone board 3 in the same manner, which facilitates installation. For example, the first upright 22 and the second upright 23 are respectively clamped with the microphone board 3, and for example, the first upright 22 and the second upright 23 are respectively bonded with the microphone board 3.

In a specific implementation, the first upright 22 and the second upright 23 are fixedly connected to the microphone board 3 by screws, respectively. Specifically, with continued reference to fig. 8 to 10, the first upright column 22 and the second upright column 23 are respectively provided with a fixing seat 24, the fixing seat 24 includes a first supporting wall 241 and a second supporting wall 242, and the first supporting wall 241 and the second supporting wall 242 are connected to form a supporting groove 243 for accommodating the microphone board 3; the first support wall 241 is screwed to the microphone board 3.

Specifically, the fixing base 24 may have a V-shaped structure, which includes a first supporting wall 241 and a second supporting wall 242, and the first supporting wall 241 and the second supporting wall 242 are connected to form a supporting groove 243. Optionally, the fixing seat 24, the first upright column 22 and the second upright column 23 are integrally formed, which is not only convenient for processing, but also beneficial to improving the structural strength.

In order to further improve the structural strength of the support frame 2, the support frame 2 is provided with reinforcing plates 25 at the first upright column 22 and the second upright column 23 respectively, wherein one reinforcing plate 25 is connected with the first upright column 22 and the support plate 21 respectively, and the reinforcing plate 25 is perpendicular to the plate-shaped first upright column 22; another reinforcing plate 25 is connected to the second upright 23 and the support plate 21, respectively, and the reinforcing plate 25 is perpendicular to the plate-shaped second upright 23. Of course, the arrangement form of the reinforcing plate 25 is not limited to this, and for example, the reinforcing plate 25 may also be arranged at intervals along the circumferential direction of the first and

second columns

22 and 23.

In this embodiment, the microphone board 3 is a rectangular board, and the first supporting wall 241 and the second supporting wall 242 are perpendicular, so that the side surfaces of the microphone board 3 are attached to the first supporting wall 241 and the second supporting wall 242, and the reliability of the support of the fixing base 24 is improved. Alternatively, the area of the first support wall 241 may be larger than the area of the second support wall 242, so as to provide a larger support surface to support the microphone board 3.

In order to fix the microphone board 3, the first supporting wall 241 is provided with a first threaded hole 2411, the microphone board 3 is provided with a first connecting hole, and the first screw 26 passes through the first connecting hole and is threadedly connected with the first threaded hole 2411, thereby fixing both ends of the microphone board 3 to the first supporting wall 241, respectively.

In order to improve the reliability of the fixed connection, a connection column 2412 is provided at the outer side of the first support wall 241, and the first threaded hole 2411 penetrates through the thickness of the first support wall 241 and the connection column 2412, so that the length of the first threaded hole 2411, that is, the length of the threaded connection between the first screw 26 and the first threaded hole 2411 is increased.

When mounting, the microphone board 3 is first placed in the supporting groove 243, the second supporting wall 242 supports the microphone board 3, and the first screw 26 is connected to the first screw hole 2411. The present embodiment improves the convenience of mounting the microphone board 3 by forming the support groove 243 by providing the second support wall 242.

In order to further improve the convenience of installing the microphone board 3, the fixing seat 24 on the first upright 22 further includes a limit stop arm 244, the limit stop arm 244 is connected to the first supporting wall 241, and the limit stop arm 244 is located at an end of the first supporting wall 241 far away from the second upright 23.

Specifically, the limiting stop arm 244 and the fixing seat 24 are integrally formed, so that the processing is convenient, and the structural strength is high. Also, referring to fig. 9, the limit stop arm 244 may include a connecting arm 2441 and a limit arm 2442, wherein the connecting arm 2441 is connected to the first support wall 241, and an end of the connecting arm 2441 extends upward away from the support plate 21 to form the limit arm 2442, and the limit arm 2442 is higher than the first support wall 241.

When the microphone board is installed, the higher end face of the microphone board 3 abuts against the limiting arm 2442, so that the first connecting hole of the microphone board 3 is opposite to the first threaded hole 2411, and the convenience of installing the microphone board 3 is further improved.

With continued reference to fig. 8 to 10, the first supporting wall 221 is inclined by a first preset angle α with respect to the plate surface a of the supporting plate 21 away from the center of the mounting frame 1, that is, the side of the microphone board 3 where the sound pickup hole is disposed is inclined outward, so that the sound pickup hole faces the outer housing, which is beneficial to widening the sound pickup area. Wherein, the first preset angle alpha is 30 degrees to 45 degrees or 45 degrees to 60 degrees, so that the sound pickup direction of the microphone board 3 can be widened.

In the present embodiment, the microphone board 3 is connected to the first support wall 221 so that the microphone board 3 is inclined in the width direction thereof, which is advantageous for widening the sound pickup direction of the microphone board 3. In addition, each microphone board 3 has the same inclination angle, so that the uniformity of sound pickup can be improved, and the problem of sound signal attenuation in local areas is avoided.

There are various ways to connect the supporting plate 21 to the mounting frame 1, and in some examples, the supporting plate 21 is connected to the mounting frame 1 by screws. Referring to fig. 4, 5 and 11, the support plate 21 is provided with a second connection hole 211, the mounting frame 1 is provided with a second threaded hole 15, and the second screw 27 passes through the second connection hole 211 and is connected with the second threaded hole 15, so as to fix the support plate 21 on the mounting frame 1. Alternatively, the support plate 21 is provided with a plurality of second connection holes 211, for example, two, at intervals along the length direction thereof; be provided with the second screw hole 15 of the same quantity on the installing frame 1, so, there are a plurality of hookup location between backup pad 21 and the installing frame 1, improve stability and the reliability that support frame 2 and installing frame 1 are connected.

In other examples, the support plate 21 is snapped to the mounting frame 1. Referring to fig. 12, the mounting frame 1 is provided with a third fastener 17, the support plate 21 is provided with a fastening protrusion 213 engaged with the third fastener 17, and the fastening protrusion 213 abuts against the third fastener 17, so that the support plate 21 is fixed to the mounting frame 1. Optionally, a plurality of clamping protrusions 213 are arranged on the circumferential direction of the support plate 21, for example, when the support plate 21 is rectangular, at least two sides of the support plate 21 are provided with the clamping protrusions 213, for example, two clamping protrusions 213 are arranged at intervals on two long sides of the rectangular support plate 21; correspondingly, the third fasteners 17 disposed on the mounting frame 1 correspond to the fastening bumps 213 one by one.

In order to facilitate the connection between the supporting plate 21 and the mounting frame 1, the positioning groove 212 is formed in the supporting plate 21, the positioning column 11 matched with the positioning groove 212 is arranged on the mounting frame 1, and the positioning column 11 is matched with the positioning groove 212, so that the connection convenience between the supporting plate 21 and the mounting frame 1 is improved.

With continued reference to fig. 4 and 12, in order to further improve the convenience and reliability of the installation of the support frame 2, a plurality of limiting protrusions 16 are disposed on the installation frame 1, and the limiting protrusions 16 are disposed at intervals along the circumferential direction of the support plate 21 to limit the support plate 21, for example, one limiting protrusion 16 is disposed on the short side of the rectangular support plate 21, and two limiting protrusions 16 are disposed at intervals on the long side of the rectangular support plate 21.

In one possible embodiment, a plurality of sound pickup holes are formed on the microphone board 3, and the plurality of sound pickup holes are spaced along the length direction of the microphone board 3. Taking the example of two sound pickup holes spaced apart from each other on the microphone board 3, the two sound pickup holes are the first sound pickup hole 31 and the second sound pickup hole 32, respectively.

Alternatively, the distance between the centers of the first sound pickup hole 31 and the second sound pickup hole 32 is not less than 35mm, so that it is avoided that the distance between the two sound pickup holes is too small to cause acoustic interference.

Optionally, the height difference of the first sound pickup hole 31 and the second sound pickup hole 32 ranges from 8 mm to 12mm, and optionally, the height difference of the first sound pickup hole 31 and the second sound pickup hole 32 ranges from 10mm. The first sound pick-up hole 31 of three microphone board 3 is on same height, and the second sound pick-up hole 32 of three microphone board 3 is on same height, so set up and to realize the layering pickup, improve the pickup area.

Alternatively, referring to fig. 6, the microphone board 3 is installed obliquely. For example, the dotted triangle indicated in fig. 6 forms a first right-angle side along the X-direction, a second right-angle side along the Y-direction, and connects the first right-angle side and the second right-angle side to form an inclined side, wherein the length ratio of the first right-angle side, the second right-angle side, and the inclined side may be 3:4:5, the first right-angle side, the second right-angle side and the inclined side form a right-angle triangle. The installation direction of microphone board 3 is the extending direction on hypotenuse, so, is favorable to improving the pickup effect. Of course, the inclination direction of the microphone board 3 is not limited to the above, and it may be installed in the hypotenuse direction of a triangle of other size.

In the embodiment of the invention, the projections of the three microphone boards 3 on the mounting frame are in an equilateral triangle shape, and the six microphone holes of the three microphone boards 3 form a circular microphone area, and the distances between the microphone area and the outside speaker nets are consistent, so that the consistent microphone signals can be acquired, and the authenticity of sound is improved. Of course, those skilled in the art can cooperate with the software program to filter and coordinate, so as to further improve the sound quality and effect of the sound.

Of course, the number of the sound pickup holes provided in the microphone board 3 is not limited to two, and those skilled in the art can set the sound pickup holes according to actual situations.

The microphone device provided by the embodiment of the invention further comprises a control main board 4 for controlling the working state of the microphone device. The control main board 4 is integrated with a processor, a memory, a battery and the like. In order to realize data transmission between the microphone device and external electronic devices and/or supply power to the microphone device, an external socket 42 for performing data transmission with the external electronic devices and/or receiving power from the external electronic devices is provided on the control motherboard 4.

Wherein, control mainboard 4 is installed at the another side of installing frame 1, promptly, control mainboard 4 and support frame 2 are installed respectively at the two sides of installing frame 1. The form that control mainboard 4 was fixed on installing frame 1 has the multiple, and control mainboard 4 and installing frame 1 joint, for another example, refer to fig. 7 and 11, are provided with third screw hole 18 on the installing frame 1, are provided with the third connecting hole on the control mainboard 4, and third screw 41 passes third connecting hole and third screw hole 18 threaded connection to fix control mainboard 4 on installing frame 1.

Further, a plurality of third threaded holes 18 are formed in the mounting frame 1, correspondingly, a plurality of third connecting holes are also formed in the control main board 4, and the third connecting holes correspond to the third threaded holes 18 one to one. For example, a third connecting hole is respectively arranged at four top corners of the rectangular control main board 4, and correspondingly, four third threaded holes 15 are also arranged on the mounting frame 1. Through so setting up can be so that there are a plurality of hookup locations between installing frame 1 and the control mainboard 4, further improve the stability that installing frame 1 and control mainboard 4 are connected.

In order to realize the signal connection between the microphone board 3 and the control mainboard 4, a cable 5 is arranged between the microphone board 3 and the control mainboard 4, and two ends of the cable 5 are respectively provided with an electric socket; the control mainboard 5 and the microphone board 3 are respectively provided with an electric socket, and the two electric sockets are respectively electrically connected with the electric sockets on the control mainboard 5 and the microphone board 3.

The electrical sockets arranged at two ends of the cable 5 are respectively defined as a first electrical socket 51 and a second electrical socket 52, a first electrical socket is integrated on the control mainboard 5, a second electrical socket is integrated on the microphone 3, the first electrical socket 51 is plugged with the first electrical socket, and the second electrical socket 52 is plugged with the second electrical socket, so that the electrical connection between the control mainboard 5 and the microphone 3 is realized. Correspondingly, the mounting frame 1 is provided with a through hole 14 for the cable 5 to pass through.

Alternatively, the first electrical socket 51 and the second electrical socket 52 may be FFC (Flexible Flat Cable) sockets, and the Cable 5 is an FFC Cable, through which signal transmission between the microphone board 3 and the control motherboard 4 is realized. The FFC flat cable is a flexible flat cable, so that the FFC flat cable is convenient to bend and wire, and is beneficial to reducing the installation space.

In this embodiment, realize the electricity through cable 5 and electric socket between mike board 3 and the control mainboard 4 and connect, connect convenient simple, be favorable to improving production efficiency.

With continuing reference to fig. 1 and 2 and fig. 13 to 15, the microphone apparatus provided by the embodiment of the present invention further includes an outer housing formed with an accommodating space for accommodating the mounting frame 1, the supporting frame 2 and the microphone board 3, and an expansion link 8; a plurality of sound holes 72 are evenly distributed on one side of the outer shell opposite to the microphone board 3, and the other side of the outer shell is connected with the telescopic rod 8.

Illustratively, the outer shell includes a first shell 6 and a second shell 7, wherein, referring to fig. 14, a clamping groove 61 is provided on the first shell 6; referring to fig. 11, the mounting frame 1 is provided with a first buckle 12, and the first buckle 12 is clamped with the clamping groove 61, so that the first shell 6 is clamped with the mounting frame 1. Alternatively, a plurality of, for example, four, snap grooves 61 are provided at intervals in the circumferential direction of the first housing 6; correspondingly, the quantity that first buckle 12 that sets up on the installing frame 1 is unanimous with joint groove 61, so make and have a plurality of joint positions between first casing 6 and the installing frame 1, improve the reliability that first casing 6 and installing frame 1 are connected. In addition, the first housing 6 is further provided with an external opening 63 to avoid the external socket 42, so that a wire can pass through the external opening 63 to be electrically connected with the external socket 42. The external socket 42 may be an FFC socket, a wire of the external socket is connected to an FFC connecting base, and the external socket 42 and the wire realize communication connection between the control motherboard 4 and the external electronic device.

Referring to fig. 15, a second buckle 71 is provided on the second housing 7; continuing to refer to fig. 11, a clamping hole 13 is formed in the mounting frame 1, and the second buckle 71 is clamped with the clamping hole 13, so that the second shell 7 is clamped with the mounting frame 1. Optionally, a plurality of second snaps 71, for example, four, are provided at intervals in the axial direction of the second housing 6; correspondingly, the clamping hole 13 that sets up on the installing frame 1 is unanimous with second buckle 71's quantity, so makes and has a plurality of joint positions between second casing 7 and the installing frame 1, improves the reliability that second casing 7 and installing frame 1 are connected.

First casing 6 of this embodiment and second casing 7 respectively with installing frame 1 joint, form accommodation space to hold installing frame 1, support frame 2, mike board 3 and control mainboard 4.

In this embodiment, the second casing 7 is uniformly distributed with a plurality of sound holes 72, so that the sound signal can pass through the second casing 7 and be picked up by the microphone board 3, and a speaker net is not required to be additionally arranged, which is beneficial to simplifying the structure of the microphone device. Note that, in the second casing 7 shown in fig. 15, the sound transmission hole is not shown.

Referring to fig. 1 and 2, the first casing 6 of the outer casing is connected to a telescopic rod 8, and specifically, a first connection head is arranged at one end of the telescopic rod 8, and the first connection head may be a threaded column; referring to fig. 13, the first housing 6 is provided with a connection groove 62, the connection groove 62 may be a blind threaded hole, and the first connection head is connected to the connection groove 62, so that the first housing 6 is connected to the telescopic rod 8.

The other end of the telescopic rod 8 can also be provided with a second connector, and the second connector is connected with the wall hanging seat 9. Specifically, the wall hanging seat 9 includes a connecting cylinder 91 and a fixing plate 92, wherein the connecting cylinder 91 is fixedly connected with the second connector, for example, the connecting cylinder 91 is in interference connection with the second connector; for another example, the connection cylinder 91 is screwed with the second joint. The fixing plate 92 is used for connection with a ceiling, a wall, or the like, to suspend the outer case in the air.

The telescopic rod 8 may be an aluminum material, which may be extended or shortened to adjust the position of the outer shell.

The microphone device of the embodiment adjusts the positions of the outer shell and the microphone board 3 in the outer shell through the telescopic rod 8, thereby improving the sound pickup effect. And the shell body is suspended in the air, so that the installation space is reduced, sound wave chaos caused by return of indoor sound waves can be optimized, the output sound quality can be improved, and the user requirements can be met.

In summary, the microphone apparatus provided in the embodiments of the present invention at least has the following advantages:

1. the microphone equipment is hung indoors through the telescopic rod, does not need to be held by hands, and is convenient to operate; collision damage can also be avoided.

2. The microphone board 3 that triangle-shaped set up is favorable to improving the pickup area and the pickup effect of microphone board 3.

3. The microphone device has the advantages of simple structure, small volume, low cost and simple and convenient installation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

A microphone apparatus, comprising: the microphone comprises an installation frame, three support frames and three microphone boards; dividing three sector areas with a central angle of 120 degrees by taking the center of the mounting frame as a circle center, wherein each sector area is fixedly provided with one support frame;

every all install one on the support frame the microphone board, be provided with at least one pick-up hole on the microphone board, the microphone board is relative the installing frame dorsad the center slope of installing frame predetermines the angle.
The microphone apparatus as claimed in claim 1, wherein the supporting frame includes a supporting plate, and a first pillar and a second pillar spaced apart from each other at two ends of the supporting plate, the supporting plate is fixedly connected to the mounting frame, the first pillar is fixedly connected to one end of the microphone board, and the second pillar is fixedly connected to the other end of the microphone board.
The microphone apparatus of claim 2 wherein the first upright is taller than the second upright.
The microphone apparatus as claimed in claim 2, wherein the first pillar and the second pillar are respectively provided with a fixing base, the fixing base comprises a first supporting wall and a second supporting wall, and the first supporting wall and the second supporting wall are connected to form a supporting groove for accommodating the microphone plate; the first supporting wall is connected with the microphone board through a screw.
The microphone apparatus as claimed in claim 4, wherein the first support wall is inclined at a first predetermined angle with respect to the plate surface of the support plate away from the center of the mounting frame, the first predetermined angle being 30 ° to 45 ° or 45 ° to 60 °.
The microphone apparatus as claimed in claim 4, wherein the fixing seat of the first upright further comprises a limit arm, the limit arm is connected to the first supporting wall, and the limit arm is located at an end of the first supporting wall far from the second upright.
The microphone apparatus as claimed in claim 2, wherein the support plate is engaged with the mounting frame; or the support plate is connected with the mounting frame through a screw.
The microphone apparatus as claimed in claim 1, wherein the microphone board has a long side and a short side, and the preset angle includes a second preset angle and/or a third preset angle;

the microphone board is inclined by the second preset angle relative to the mounting frame along the long edge direction of the microphone board;

and/or the microphone board is inclined by the third preset angle relative to the mounting frame along the short side direction of the microphone board.
Microphone arrangement according to any of claims 1-8, characterized by the fact that the projected extensions of the three microphone boards on the mounting frame form a triangular structure.
The microphone apparatus as claimed in any one of claims 1 to 8, further comprising an outer case formed with an accommodation space for accommodating the mounting frame, the support frame and the microphone board, and a telescopic bar; one side of the outer shell opposite to the microphone board is provided with a plurality of sound holes, and the other side of the outer shell is connected with the telescopic rod.