Sound head mounting seat and microphone

Abstract

The utility model provides a sound head mounting seat and a microphone, the sound head mounting seat comprises a body, and the body comprises a first opening; the first mounting part is arranged in the body, a mounting cavity is formed between the first mounting part and the first opening, and the mounting cavity is used for mounting a sound head; the central axis of the body coincides with the central axis of the sound head. And the hollow part is arranged on the body and extends along the circumferential direction of the body, a first cavity is formed between the hollow part and the body, and the first cavity is communicated with a second cavity in the sound head so as to adjust the directivity of the sound head. According to the sound head mounting seat, the mounting stability between the sound head and the microphone shell can be effectively ensured, the directivity of the sound head is secondarily adjusted through the external first cavity on the premise that the directivity of the sound head can be adjusted by adjusting the front sound inlet hole and the rear sound inlet hole, and the adaptability of multi-demand use of the sound head is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound collecting devices, in particular to a sound head mounting seat and a microphone. BACKGROUND

[0002] The microphone is the most common sound collecting device and is widely used. The use effect of the microphone is usually determined by the sound head installed in the microphone. The sound head is the most important sound pickup component of the microphone. The directivity of the sound head is an important parameter for measuring the use effect of the microphone. The sound head includes front sound holes and rear sound holes. The directivity of the sound head is generated by the sound pressure difference between the front sound and the rear sound of the sound head. In the case that the sound head has no rear sound (the rear sound hole is blocked), the directivity is omnidirectional. In the case that the sound head has rear sound, the directivity is generally directional. By adjusting the density and size of the sound holes to change the rear sound boost, the directivity of the sound head will also change, producing heart-shaped directivity, super heart-shaped directivity, 8-shaped directivity, etc. However, the existing sound head is installed behind the microphone, and the directivity cannot meet the diversity requirements.

[0003] Therefore, there is an urgent need for a device capable of adjusting the directivity of the sound head. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the present application provides a sound head mounting seat and a microphone, which can effectively adjust the directivity of the sound head.

[0005] The sound head mounting seat provided in the first aspect of the present application comprises: a body, the body comprising a first opening; a first mounting part arranged in the body, a mounting cavity being formed between the first mounting part and the first opening, the mounting cavity being used for mounting the sound head; the central axis of the body coincides with the central axis of the sound head; a hollow part is arranged in the body and extends along the circumference of the body, a first cavity is formed between the hollow part and the body, and the first cavity is in communication with a second cavity in the sound head, so as to adjust the directivity of the sound head.

[0006] In some possible implementation manners, the sound head, the first mounting part and the hollow part are sequentially arranged along the central axis direction of the body.

[0007] In some possible implementation manners, the first mounting part is a ring-shaped mounting seat, the ring-shaped mounting seat extends inwardly from the inner wall of the body and forms a second opening, the size of the second opening is smaller than the size of the first opening, and the size of the second opening is greater than the maximum distance between any two rear sound holes in the sound head.

[0008] In some possible implementation manners, the number of the hollow parts is a plurality, and the plurality of hollow parts are symmetrically arranged about the central axis of the body.

[0009] In some possible implementation manners, the number of the hollowed-out portions is multiple groups, and the multiple groups of hollowed-out portions are symmetrically arranged about the central axis of the body; each group of hollowed-out portions includes multiple hollowed-out strips, and the hollowed-out strips are sequentially arranged along the central axis of the body.

[0010] In some possible implementation manners, the sound head mounting seat further includes a sound head pressing ring, which is detachably connected with the body and located at the first opening, and is used for fixing the top of the sound head.

[0011] In some possible implementation manners, the body further includes a lead hole, which is arranged on a side of the hollowed-out portion away from the sound head; and a central axis of the lead hole coincides with the central axis of the body, and the lead hole is used for penetrating a connecting wire.

[0012] In some possible implementation manners, the first mounting portion, the hollowed-out portion and the lead hole are sequentially arranged along the central axis of the body.

[0013] In some possible implementation manners, the sound head mounting seat further includes a second mounting portion, which is arranged on an outer wall surface of the body, and multiple second mounting portions are symmetrically arranged about the central axis of the body, and the second mounting portion is used for mounting the body.

[0014] The sound head mounting seat provided in the first aspect of the present application is used for mounting the sound head, avoids mounting the sound head in the microphone in a direct connection manner, and avoids the situation that the sound head is loose or not firmly connected during a long-time use. The sound head mounting seat can effectively ensure the mounting stability between the sound head and the microphone shell. On the premise that the sound head can adjust the front sound hole and the rear sound hole to achieve the purpose of adjusting the directivity, the external first cavity is used to achieve the purpose of adjusting the directivity of the sound head again, and the adaptability of the sound head to multiple requirements is improved.

[0015] The microphone provided in the second aspect of the present application includes a sound head, a shell and the sound head mounting seat provided in the first aspect, and the sound head is arranged in the shell through the sound head mounting seat.

[0016] The microphone provided in the second aspect of the present application includes the sound head mounting seat provided in the first aspect, and the beneficial technical effects thereof can be referred to the first aspect, which will not be described herein again. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, other drawings can also be obtained by those skilled in the art without any creative labor on the premise of the drawings.

[0018] Figure 1 is a three-dimensional schematic view of a sound head mounting seat provided in an embodiment of the present application;

[0019] Figure 2is a sectional view of a sound head mounting seat provided by an embodiment of the present application;

[0020] Figure 3 is a top view of a sound head mounting seat provided by an embodiment of the present application;

[0021] Figure 4 is a perspective view of another sound head mounting seat provided by an embodiment of the present application;

[0022] Figure 5 is a structural schematic view of a plurality of sound head mounting seats provided by an embodiment of the present application;

[0023] Figure 6 is Figure 5 is a test result view of the sound head mounting seat in (a);

[0024] Figure 7 is Figure 5 is a test result view of the sound head mounting seat in (b);

[0025] Figure 8 is Figure 5 is a test result view of the sound head mounting seat in (c).

[0026] Illustration mark:

[0027] 100 - sound head mounting seat; 10 - body; 11 - first opening; 12 - lead hole; 121 - first end; 122 - second end; 20 - first mounting part; 21 - second opening; 30 - hollow part; 31 - hollow strip; 40 - sound head compression ring; 50 - second mounting part; 51 - first threaded hole; 200 - sound head. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0029] Hereinafter, the terms "first", "second", and the like are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In addition, in the present application, the orientation terms such as "upper", "lower", "inner", "outer" and the like are defined relative to the orientation in which the components in the drawings are placed, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation in which the components in the drawings are placed.

[0031] Figure 1 is a perspective view of a sound head mounting seat provided by an embodiment of the present application, Figure 2 is a sectional view of a sound head mounting seat provided by an embodiment of the present application.

[0032] In combination with Figure 1 and Figure 2 shown, the sound head mounting seat 100 provided by the embodiment of the present application includes a body 10, a first mounting part 20 and a hollow part 30. Wherein, for the convenience of viewing, Figure 2 only half of the sectional view of the sound head mounting seat 200 is shown, and the internal structure of the other half is the same as that of the half.

[0033] Wherein, the body 10 can be a cylinder and has an open structure.

[0034] The first mounting part 20 is arranged inside the body 10, and a mounting cavity is formed between the first mounting part 20 and the first opening 11, which is used for mounting the sound head 200. In the process of assembly, the sound head 200 can be mounted in the mounting cavity through the first opening 11. Wherein, the sound head 200 includes a front sound hole and a rear sound hole, and after the sound head 200 is mounted, the front sound hole of the sound head 200 faces the first opening 11, and the rear sound hole faces away from the first opening 11.

[0035] The hollow part 30 is arranged in the body 10, and the hollow part 30 extends along the circumference of the body 10, and a first cavity is formed between the hollow part 30 and the body 10. A second cavity is formed between the front sound hole and the rear sound hole of the sound head 200. The first cavity communicates with the second cavity through the rear sound hole. When external sound enters the sound head 200, it first enters the first cavity through the hollow part 30 and then enters the second cavity through the rear sound hole. Wherein, for the sound head 200, the second cavity is an internal cavity of the sound head 200, and the first cavity is an external cavity of the sound head 200, and the first cavity includes the cavity formed by the hollow part 30 itself and the cavity inside the body 10 corresponding to the hollow part 30.

[0036] In this way, by setting the external cavity for the sound head 200, the sound pressure difference between the front sound hole and the rear sound hole is changed, thereby achieving the purpose of adjusting the directivity. It can be understood that the directivity of the sound head 200 can represent the sensitivity of the microphone to sound of different angles, the ability to collect sound of different directions. By adjusting the directivity of the sound head 200, the sensitivity of the microphone to sound of different directions can be changed, thereby improving the ability to collect sound of different directions.

[0037] Specifically, the central axis of the body 10 coincides with the central axis of the sound head 200, so that when external sound converges to the rear sound hole of the sound head 200 along the circumference of the sound head 200, there is no horizontal distance between the body 10 and the sound head 200, so that the second cavity and the first cavity also have no distance in the horizontal direction, thereby shortening the conduction distance of sound from the second cavity to the first cavity, and facilitating the adjustment of the directivity. The body 10 is also used to mount the sound head 200, avoiding the direct connection of the sound head 200 to the microphone. The sound head 200 can be loose or not firmly connected during long-term use.

[0038] The sound head mounting seat 100 can effectively ensure the mounting stability between the sound head 200 and the microphone shell. Under the premise that the sound head 200 can adjust the front sound hole and the rear sound hole to achieve the purpose of adjusting the directivity, the external first cavity is used to adjust the directivity of the sound head 200 again, thereby improving the adaptability of the sound head 200 to multiple requirements.

[0039] In some possible implementation manners, continuing to refer to Figure 2 As shown in FIG. 1, the sound head 200, the first mounting portion 20, and the hollow portion 30 are sequentially arranged along the central axis of the body 10, and there can be no gap or a preset gap between the first mounting portion 20 and the hollow portion 30. That is, the distance between the top of the hollow portion 30 and the bottom surface of the first mounting portion 20 is greater than or equal to 0. The distance between the top of the hollow portion 30 and the bottom surface of the first mounting portion 20 can be the distance between the highest surface of the wall surface of the body 10 on which the hollow portion 30 is arranged and the bottom surface of the first mounting portion 20 along the central axis of the body 10. The highest surface of the body 10 on which the hollow portion 30 is arranged can be the surface A shown in FIG. 1, and the bottom surface of the first mounting portion 20 can be the surface B shown in FIG. 1. The distance between the surface A and the surface B is L1, and L1 is greater than or equal to 0. Figure 2 Figure 2 The distance between the surface A and the surface B is L1, and L1 is greater than or equal to 0.

[0040] ​The first case is that L1 is 0. In this case, the top surface of the hollow part 30 is attached to the bottom surface of the first mounting part 20. The sound can directly enter the first cavity through the hollow part 30 and then enter the second cavity.

[0041] The second case is that L1 is greater than 0, as shown in Figure 2 In this case, the top surface of the hollow part 30 is provided with a preset distance from the bottom surface of the first mounting part 20. The sound can enter the first cavity after passing through the hollow part 30 and then passing through the preset distance, thereby increasing the path of the sound entering the second cavity. That is, in this case, the bottom surface of the first mounting part 20 is located between the top surface of the hollow part 30 and the first opening 11.

[0042] Both of the above two cases can adjust the directivity of the sound head 200, and can be adaptively adjusted according to the actual size of the sound head 200, the sound output requirement, and the shape of the hollow part 30. The specific value of L is not limited in the embodiments of the present application.

[0043] It should be emphasized that the plane where the top of the hollow part 30 is located can be understood as being coplanar with the highest surface A of the hollow part 30 formed on the body 10. In this implementation manner, the hollow part 30 can be square, such as square, rectangular, prismatic, etc. If the hollow part 30 is in other shapes, such as circular or elliptical, the top of the hollow part 30 can be understood as the highest position of the hollow part 30 along the central axis direction of the body 10.

[0044] The top of the hollow part 30 is located on the side of the first mounting part 20 away from the first opening 11, that is, along the central axis direction of the body 10, the first cavity is located below the second cavity, thereby avoiding the intersection of the first cavity and the second cavity, causing sound interference.

[0045] Figure 3 is a top view of a sound head mounting seat provided by the embodiments of the present application.

[0046] In some feasible implementation manners, in combination with Figure 2 and Figure 3 The body 10 can be a hollow circular ring structure, and the first mounting part 20 can be a ring-shaped mounting seat formed by extending the inner wall of the body 10 towards the central axis direction of the body 10. That is, the surface of the ring-shaped mounting seat on the side facing the first opening 11 forms a mounting cavity with the first opening 11. After the sound head 200 is mounted in the sound head mounting seat 100 through the first opening 11, the bottom surface on the side of the sound head 200 rear sound hole is attached to the surface of the ring-shaped mounting seat on the side facing the first opening 11, thereby providing a mounting basis for the sound head 200 through the first mounting part 20.

[0047] Specifically, the annular mounting seat is formed with a second opening 21, which is not only used for communicating the rear sound holes of the sound head 200, but also used for penetrating the mounting end of the connecting line of the sound head 200.

[0048] The size of the second opening 21 is smaller than the size of the first opening 11, and the size of the second opening 21 is also smaller than the size of the sound head 200, so as to ensure the stability when supporting the sound head 200.

[0049] In addition, the size of the second opening 21 is greater than the maximum distance between any two rear sound holes of the sound head 200. It can be understood that the rear sound holes of the sound head 200 are uniformly distributed on the bottom surface of the sound head 200, and according to the size of different sound heads 200, the rear sound holes can be arranged in an array or in a ring diffusion. By setting the size of the second opening 21 to be greater than the maximum distance between any two rear sound holes, the purpose is that the annular mounting seat will not cover any rear sound hole, so as to effectively ensure the smoothness of the sound entering the second cavity from the first cavity. That is, when setting the second opening 21, under the premise of meeting the stability of the sound head 200 installation, the second opening 21 with larger size is set as much as possible to avoid the interference of the annular mounting part with the sound collecting effect of the rear sound hole of the sound head 200.

[0050] The size mentioned in the above first opening 11 and second opening 21 refers to the diameter. Continue to refer to Figure 3 It is shown that the diameter of the first opening 11 is L1, and the diameter of the second opening 21 is L2, L2 is less than L1.

[0051] In some feasible implementations, continue to combine Figure 1 and Figure 2 It is shown that the number of the hollow parts 30 is multiple, and the multiple hollow parts 30 are symmetrically arranged along the central axis of the body 10, so as to ensure that the sound can pass through the first cavity into the second cavity at multiple angles and multiple directions, effectively adjusting the sound collecting effect and the balance of the sound collecting of the sound head 200, so as to better adjust the directivity.

[0052] The hollow part 30 is square, which is similar to the window structure. The difference is that Figure 1 The four corners of the hollow part 30 in Figure 2 are right angles, while Figure 1 The four corners of the hollow part 30 in Figure 2 are bevel angles. Of course, in the remaining implementations, the hollow part 30 can also be in other shapes different from those shown in Figure 1 and Figure 2 , such as circular, strip, triangular, etc. At the same time, Figure 1 and Figure 2The number of the hollowed parts 30 shown in the figure is four. In other specific embodiments, the number of the hollowed parts 30 can also be different from four, such as two, three, six, eight, nine, etc.

[0053] Of course, the number of the hollowed parts 30 can also be multiple groups, and the multiple groups of the hollowed parts 30 are symmetrically arranged along the central axis of the body 10. Each group of the hollowed parts 30 includes multiple hollowed strips, and each hollowed strip can extend along the circumference of the body 10, and the multiple hollowed strips can be arranged in sequence along the central axis of the body 10. For example, the number of the hollowed parts 30 can be three groups, and the number of the hollowed strips in each group can be four.

[0054] Alternatively, when the number of the hollowed parts 30 is multiple groups, each group of the hollowed parts 30 can include multiple hollowed strips, and the hollowed strips can extend along the central axis of the body 10 and be arranged in sequence along the circumference of the body 10. For example, the number of the hollowed parts 30 can be three groups, and the number of the hollowed strips in each group can be three.

[0055] Figure 4 is another perspective view of the sound head mounting seat provided by an embodiment of the present application.

[0056] In one specific embodiment, as shown in Figure 4 , the hollowed strips 31 extend along the circumference of the body 10, and the number of the hollowed parts 30 is four groups, and the number of the hollowed strips 31 in each group of the hollowed parts 30 is two.

[0057] Alternatively, when the number of the hollowed parts 30 is multiple groups, each group of the hollowed parts 30 can include multiple through holes, and the central axis of the through holes is perpendicular to the central axis of the body 10. For example, the number of the hollowed parts 30 can be four groups, and the number of the through holes in each group can be ten or twenty. Among them, the diameter of the hollowed hole can be adaptively adjusted according to the inner diameter size of the body 10.

[0058] In this way, the position and number of the hollowed parts 30 can be flexibly set to adapt to different sizes and different sound collection needs of the sound head 200.

[0059] Continuing to refer to Figure 2 , the sound head mounting seat 100 further includes a sound head pressing ring 40, which is detachably connected with the body 10 and located at the first opening 11, and the sound head pressing ring 40 is used to fix the top of the sound head 200.

[0060] Specifically, after the sound head 200 is installed in the mounting cavity through the first opening 11, in order to further ensure the installation stability of the sound head 200 and avoid the sound head 200 from falling off when the microphone is inverted, the sound head pressing ring 40 can be arranged at the first opening 11, and the sound head pressing ring 40 is pressed on the top of the sound head 200 to avoid the sound head 200 from being pulled out of the first opening 11 when the microphone is inverted.

[0061] The sound head pressing ring 40 can be a ring-shaped connector, and its inner diameter is large enough to not block the front sound holes on the top of the sound head 200. The inner diameter of the sound head pressing ring 40 can be larger than the maximum distance between any two front sound holes of the sound head 200.

[0062] In some possible implementations, the sound head pressing ring 40 can be connected to the body 10 in one of the following manners: threaded connection, adhesive connection, or buckle connection.

[0063] When the threaded connection is adopted, the inner wall surface of the body 10 can be provided with internal threads, and the sound head pressing ring 40 can be provided with external threads. The sound head pressing ring 40 is connected to the body 10 by screwing the internal threads and the external threads.

[0064] When the adhesive connection is adopted, the inner wall surface of the body 10 located at the upper part of the sound head 200 can be coated with connecting glue after the sound head 200 is installed. The connecting glue is used to bond the top of the sound head 200 and the sound head pressing ring 40.

[0065] When the buckle connection is adopted, the inner wall surface of the body 10 can be provided with a clamping groove, and the sound head pressing ring 40 can be provided with a buckle. The sound head pressing ring 40 is connected to the body 10 by clamping the buckle in the clamping groove.

[0066] Continuing to refer to Figures 1 to 4 The body 10 further includes a lead hole 12. The lead hole 12 is arranged on the side of the hollow part 30 away from the sound head 200. The lead hole 12 is used to pass a connecting wire. The connecting wire of the microphone can pass through the lead hole 12 into the first cavity, and then be connected to the mounting end of the connecting wire of the sound head 200 passing through the second opening 21, so as to realize the normal work of the microphone.

[0067] The center axis of the lead hole 12 coincides with the center axis of the body 10, that is, the connecting wire will not be bent in the horizontal direction during the process of being connected to the mounting end through the lead hole 12. At the same time, the hole diameter of the lead hole 12 is L3, which can be smaller than L2. L3 can be slightly larger than the diameter of the connecting wire, so as to avoid the influence of the collision of the connecting wire on the signal transmission, and effectively ensure the stability of the signal transmission.

[0068] The first mounting part 20, the hollow part 30, and the lead hole 12 are sequentially arranged along the center axis of the body 10. There can be no gap between the hollow part 30 and the lead hole 12, or a preset gap can be arranged therebetween.

[0069] In a specific implementation, continuing to refer to Figure 2The lead hole 12 includes a first end 121 opposite to a second end 122 along the central axis of the body 10. The first end 121 is close to the hollow part 30, and the second end 122 is away from the hollow part 30. The second end 122 is coplanar with the bottom surface of the body 10, which is the surface of the body 10 away from the first opening 11. The distance between the first end 121 and the bottom of the hollow part 30 is greater than or equal to 0. The bottom of the hollow part 30 can be opposite to the top of the hollow part 30. The distance between the bottom of the hollow part 30 and the first end 121 can be the distance between the lowest surface of the wall surface of the hollow part 30 on the body 10 and the first end 121 along the central axis of the body 10. The lowest surface of the wall surface of the hollow part 30 on the body 10 can be the surface C shown in Figure 2 The distance between the surface C and the first end 121 is L2, which is greater than or equal to 0. The number of the lowest surfaces of the wall surface of the hollow part 30 on the body 10 can be multiple, and the surface C can be one of the multiple lowest surfaces.

[0070] In this way, the bottom of the hollow part 30 is above the first end 121 or coincides with the first end 121 along the central axis of the body 10. Thus, the sound entering the first cavity through the hollow part 30 will not collide with the hole wall of the lead hole 12, effectively ensuring the sound collection effect.

[0071] It should be emphasized that the plane where the bottom of the hollow part 30 is located can be understood as being coplanar with the lowest surface C of the hollow part 30 on the body 10. In this implementation, the hollow part 30 can be square, such as square, rectangular, prismatic, etc. If the hollow part 30 is of other shapes, such as circular or elliptical, the bottom of the hollow part 30 can be understood as the lowest position of the hollow part 30 along the central axis of the body 10.

[0072] As shown in Figures 1 to 4 The sound head mounting seat 100 further includes a second mounting part 50. The second mounting part 50 is arranged on the outer wall surface of the body 10, and is used to mount the body 10 in the shell of the microphone.

[0073] Specifically, the number of the second mounting part 50 is multiple, and the multiple second mounting parts 50 are symmetrically arranged about the central axis of the body 10. In this way, the force balance of the body 10 can be ensured.

[0074] As Figures 1 to 4In the shown implementation, the second mounting portion 50 is in the form of a threaded mounting seat, and a first threaded hole 51 is formed in the second mounting portion 50, and a first internal thread (not shown) is formed in the first threaded hole 51. A second threaded hole is formed in a corresponding position of the microphone housing, and a second internal thread is formed in the second threaded hole. By screwing the external thread of a screw with the first and second internal threads, the body 10 is stably mounted on the microphone housing.

[0075] In other possible implementations, the number of second mounting portions 50 can be three, four, or other numbers.

[0076] Alternatively, in other possible implementations, the second mounting portion 50 can be in other forms different from the threaded mounting seat. For example, the second mounting portion 50 can be a buckle, a clamp, or a second mounting portion 50 in the form of an external thread structure, etc. The specific form and number of the second mounting portion 50 can be adaptively adjusted according to the size of the actual sound head mounting seat 100 and the use requirements.

[0077] Figure 5 is a structural schematic diagram of a plurality of sound head mounting seats provided by the embodiment of the present application; Figure 6 is Figure 5 is a test result diagram of the sound head mounting seat in (a), Figure 7 is Figure 5 is a test result diagram of the sound head mounting seat in (b), Figure 8 is Figure 5 is a test result diagram of the sound head mounting seat in (c).

[0078] Figure 5 The sound head mounting seat 100 shown in (a) is provided with two sets of hollow portions 30, and each set of hollow portions 30 includes two hollow strips 31 extending along the circumference of the body 10. Figure 5 The sound head mounting seat 100 shown in (b) is provided with four sets of hollow portions 30, and each set of hollow portions 30 includes four hollow strips 31 extending along the circumference of the body 10. Figure 5 The sound head mounting seat 100 shown in (c) is provided with three sets of hollow portions 30, and each set of hollow portions 30 includes three hollow strips 31 extending along the circumference of the body 10. It can be seen that, Figure 5 In the three sound head mounting seats 100 shown, because the number of sets of hollow portions 30, the number of hollow strips 31, and the distance between the two adjacent hollow strips 31 along the central axis direction of the body 10 are different, the volume of the first cavity in each sound head mounting seat 100 is also different, and the sound inlet volume also changes with the volume of the first cavity. Therefore, the different first cavities have different effects on the directivity.

[0079] Referring toFigures 6 to 8 As shown in the test graph, the horizontal axis represents frequency, unit kHz, and the vertical axis represents decibel amplitude (dbV), unit V. The three curves from top to bottom along the vertical axis are the curves of the frequency response of the positive direction, the reverse direction and the 135° direction, respectively.

[0080] wherein, Figure 6 As shown in the corresponding directivity graph, it is a heart-shaped directivity. Figure 7 As shown in the corresponding directivity graph, it is a super heart-shaped directivity. Figure 8 As shown in the corresponding directivity graph, it is a fat heart-shaped directivity. It can be seen that by adjusting the number of hollow parts 30, the number of hollow strips 31 and the longitudinal distance between adjacent hollow strips 31, the external first cavity has a significant impact on the directivity of the sound head 200. That is, by setting the sound head mounting seat 100, the external first cavity is provided for the sound head 200, which effectively adjusts the directivity of the sound head 200, and at the same time, the volume of the first cavity can be adjusted by the specific structure of the hollow part 30, the size of the sound head 200 can be changed. The sound pressure of the back, effectively improves the adaptability of the sound head 200, and meets the microphone of multiple fields and multiple needs.

[0081] The embodiment of the present application also provides a microphone, which comprises a sound head 200, a shell and the sound head mounting seat 100 provided above, the sound head 200 is arranged in the sound head mounting seat 100, and the sound head mounting seat 100 is arranged in the shell.

[0082] It should be noted that other embodiments of the present application will occur to those skilled in the art having the benefit of the present disclosure. The present application is intended to embrace all such alterations, modifications and variations that fall within the scope of the present application, which is defined solely by the claims appended hereto.

[0083] It should be understood that the present application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The true scope of the present application is set forth in the claims.

Claims

1. A sound head mount, characterized by comprising: Comprising: a body (10) comprising a first opening (11); a first mounting portion (20) disposed in the body (10), an installation cavity being formed between the first mounting portion (20) and the first opening (11), the installation cavity being used for mounting a sound head; a central axis of the body (10) coincides with a central axis of the sound head; a hollow portion (30) opened in the body (10) and extending along a circumferential direction of the body (10), a first cavity being formed between the hollow portion (30) and the body (10), the first cavity being in communication with a second cavity in the sound head to adjust directivity of the sound head.

2. The sound head mounting seat according to claim 1, wherein: the sound head, the first mounting portion (20) and the hollow portion (30) are sequentially arranged along a central axis direction of the body (10).

3. The sound head mounting seat according to claim 2, wherein: the first mounting portion (20) is a ring-shaped mounting seat, the ring-shaped mounting seat extends inwardly from an inner wall of the body (10) and forms a second opening (21), a size of the second opening (21) is smaller than a size of the first opening (11), and the size of the second opening (21) is greater than a maximum distance between any two rear sound holes in the sound head.

4. The sound head mounting seat according to claim 3, wherein: a number of the hollow portions (30) is multiple, and the multiple hollow portions (30) are symmetrically arranged about the central axis of the body (10).

5. The sound head mounting seat according to claim 3, wherein: a number of the hollow portions (30) is multiple groups, and the multiple groups of the hollow portions (30) are symmetrically arranged about the central axis of the body (10); each group of the hollow portions (30) comprises multiple hollow strips (31), and the hollow strips (31) are sequentially arranged along the central axis of the body (10).

6. The sound head mount according to claim 3, wherein Further comprising: a sound head pressing ring (40) detachably connected with the body (10) and located at the first opening (11), the sound head pressing ring (40) being used for fixing a top portion of the sound head.

7. The sound head mount according to claim 6, wherein The body (10) further comprises: a lead hole (12) disposed on a side of the hollow portion (30) away from the sound head; wherein, a central axis of the lead hole (12) coincides with the central axis of the body (10), and the lead hole (12) is used for penetrating a connecting line.

8. The sound head mounting seat according to claim 7, wherein: the first mounting portion (20), the hollow portion (30) and the lead hole (12) are sequentially arranged along a central axis direction of the body (10).

9. The sound head mount according to claim 8, wherein Further comprising: a second mounting portion (50) disposed on an outer wall surface of the body (10), a plurality of the second mounting portions (50) being symmetrically arranged about the central axis of the body (10), and the second mounting portion (50) being used for mounting the body (10).

10. A microphone, characterized by Comprising: a sound head (200), a shell and the sound head mounting seat (100) according to any one of claims 1 to 9. The sound head (200) is disposed in the housing by the sound head mount (100).

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