CN220139616U

CN220139616U - Sound pickup device, electronic apparatus, and television

Info

Publication number: CN220139616U
Application number: CN202321667983.5U
Authority: CN
Inventors: 陈文杰; 赵文苓
Original assignee: Shenzhen TCL Digital Technology Co Ltd
Current assignee: Shenzhen TCL Digital Technology Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-12-05
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses a pickup device, electronic equipment and a television, wherein the pickup device comprises a microphone assembly and a shell, the microphone assembly is accommodated in the shell, a pickup channel is integrally formed in the shell, the pickup channel comprises a first section and a second section which are vertically communicated, the microphone assembly is arranged at an opening of the first section, and the opening of the second section is positioned on the outer surface of the shell; the inner surface of the second section is obliquely arranged in the direction of approaching the axis of the second section along the direction of keeping away from the outer part of the shell. The pickup device has the advantage of lower production difficulty.

Description

Sound pickup device, electronic apparatus, and television

Technical Field

The utility model belongs to the technical field of voice, and particularly relates to a pickup device, electronic equipment and a television.

Background

With the rapid development of intelligent voice technology, more and more devices such as televisions, in addition to mobile devices such as mobile phones and palm tablet computers, are beginning to be provided with pick-up devices to pick up sounds of external environments.

In the related art, the inside of the pickup device generally comprises a microphone and a silica gel sound guide sleeve, one end of the silica gel sound guide sleeve is connected with a corresponding hole site on the shell, and the other end of the silica gel sound guide sleeve is communicated with a pickup hole of the microphone, so that the microphone can pick up sound outside the shell through the silica gel sound guide sleeve. However, the assembly process of the silica gel sound guide sleeve has higher requirements, resulting in higher production difficulty of the sound pickup device.

Disclosure of Invention

The embodiment of the utility model provides a sound pickup device, electronic equipment and a television, which can reduce the production difficulty of the sound pickup device.

In a first aspect, an embodiment of the present utility model provides a pickup apparatus, including a microphone assembly and a housing, where the microphone assembly is housed in the housing, and the housing is integrally formed with a pickup channel, the pickup channel includes a first section and a second section that are vertically communicated, the microphone assembly is mounted at an opening of the first section, and the opening of the second section is located on an outer surface of the housing; the inner surface of the second section is obliquely arranged towards the direction close to the axis of the second section along the direction that the axis of the second section is far away from the outer part of the shell.

Optionally, the resonance frequency point of the microphone assembly is greater than 16KHZ;

the pore diameter of the first section is greater than or equal to 1.5 millimeters;

along the axial line direction of the second section, the total length of the second section and the first section is less than or equal to 4.8 millimeters;

the aperture of the opening of the second section near the end of the first section is larger than or equal to 1.2 mm;

the aperture of the end of the second section, which is far away from the first section, is larger than or equal to 1.5 mm.

Optionally, the aperture of the first section is 1.5 mm;

the length of the first section is 2.1 millimeters along the axial lead direction of the first section;

along the axial line direction of the second section, the total length of the second section and the first section is 4.8 millimeters;

the aperture of the opening of the second section near the end of the first section is 1.2 mm;

the aperture of the end of the second section remote from the first section is 1.5 mm.

Optionally, the number of the pick-up channels is at least one;

the inner surface of the shell is provided with at least one sealing surface, each sealing surface is provided with an opening of the first section, the sealing surfaces are tightly attached to the microphone assembly, and the ratio of the width of the sealing surfaces to the aperture of the first section is greater than or equal to 25.

Optionally, the ratio of the width of the sealing surface to the aperture of the first segment is less than or equal to 65.

Optionally, the microphone assembly includes:

the silica gel sealing strip is tightly attached to the opening end face of the first section;

the circuit board is tightly attached to the surface of one side of the silica gel sealing strip, which is opposite to the first section; and

and the microphone is arranged on one side of the circuit board, which is opposite to the silica gel sealing strip.

Optionally, the silica gel sealing strip is respectively adhered and fixed with the circuit board and the opening end face of the first section;

the microphone assembly further comprises a fastener, and the fastener penetrates through the circuit board and is connected with the shell, so that the circuit board is fixedly connected with the shell.

In a second aspect, an embodiment of the present utility model further provides an electronic apparatus, including a sound pickup apparatus as any one of the above.

In a third aspect, an embodiment of the present utility model further provides a television, including a microphone assembly and a housing, where the microphone assembly is housed in the housing, and the housing is integrally formed with a pickup channel, and the pickup channel includes a first section and a second section that are vertically communicated, and the microphone assembly is mounted at an opening of the first section, and an opening of the second section is formed on an outer surface of the housing.

Optionally, the inner surface of the second section is inclined toward a direction approaching to the axis of the second section along a direction of the axis of the second section away from the outside of the housing.

Optionally, the resonance frequency point of the microphone assembly is greater than or equal to 16KHZ;

Optionally, the aperture of the first section is 1.5 mm;

along the axial line direction of the second section, the total length of the second section and the first section is equal to 4.8 mm;

the aperture of the opening of the second section near the end of the first section is equal to 1.2 mm;

the aperture of the end of the second section remote from the first section is equal to 1.5 mm.

Optionally, the number of the pick-up channels is at least one;

the inner surface of the shell is provided with at least one sealing surface, each sealing surface is provided with an opening of the first section, the microphone assembly is tightly attached to the sealing surface, and the ratio of the width of the sealing surface to the aperture of the first section is greater than or equal to 25.

Optionally, the microphone assembly includes:

the microphone is arranged on one side of the circuit board, which is opposite to the silica gel sealing strip;

the fastener is arranged on the circuit board in a penetrating way and is connected with the shell, so that the circuit board is fixedly connected with the shell.

In the embodiment of the utility model, the shell can be directly integrally formed into the pickup channel in an injection molding mode, so that compared with the mode that the silica gel sound guide sleeve is additionally and independently arranged, the air tightness of the pickup channel can be improved, the pickup effect of the pickup device can be improved, and meanwhile, the assembly difficulty of the pickup device can be reduced by reducing parts. Furthermore, the second section can also be simply understood as a horn-like structure, or the second section has a draft angle, so that after the injection molding of the housing, the pick-up channel of the housing is more easily released from the mold, thereby further reducing the difficulty in producing the pick-up device. Therefore, the pickup device provided by the embodiment of the utility model has a good pickup effect and simultaneously meets the actual requirement of easy production.

Drawings

The technical solution of the present utility model and its advantageous effects will be made apparent by the following detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings.

Fig. 1 is an exploded view of a part of a sound pickup apparatus or a television according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of the housing shown in fig. 1.

Fig. 3 is a partial enlarged view at X in fig. 2.

Fig. 4 is an exploded view of a portion of the sound pickup apparatus shown in fig. 1 or another perspective view of a television.

The reference numerals in the figures are respectively:

100. a microphone assembly;

11. a circuit board; 12. a microphone; 13. a silica gel sealing strip; 14. a second positioning structure; 15. a fastener;

200. a housing;

21. a pickup channel; 211. a first section; 212. a second section; 22. sealing surfaces; 23. a first positioning structure.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The embodiment of the utility model provides a sound pickup device. The sound pickup apparatus may be used independently. The sound pickup apparatus may also be applied to an electronic device. The electronic device may be an electronic device such as a mobile phone, a palm tablet computer, a vehicle-mounted display screen, a computer display, or an intelligent household appliance such as a radio, a sound, a refrigerator, a washing machine, an air conditioner, a clothes dryer, etc., which is not limited in the embodiment of the present utility model.

Referring to fig. 1 and 2, fig. 1 is an exploded view of a part of a sound pickup apparatus or a television according to an embodiment of the present utility model, and fig. 2 is a cross-sectional view of a casing shown in fig. 1. The sound pickup apparatus may include a microphone assembly 100 and a housing 200. The microphone assembly 100 is housed in the housing 200. The housing 200 is integrally formed with a pickup passage 21. The sound pickup passage 21 includes a first section 211 and a second section 212 which are vertically communicated. The microphone assembly 100 is mounted at the opening of the first section 211, and the opening of the second section 212 is located at the outer surface of the housing 200. Further, the microphone assembly 100 may pick up sound outside the housing 200 through the sound pickup passage 21. Wherein the inner diameter of the second section 212 gradually decreases in a direction in which the axis of the second section 212 is away from the outside of the housing 200. In other words, the inner surface of the second section 212 is inclined toward the direction approaching the axis of the second section 212 in the direction of the axis of the second section 212 away from the outside of the housing 200. Of course, it is also simply understood that the second section 212 is a horn-like structure with an inner diameter gradually expanding in a direction away from the first section 211.

In actual production, the housing 200 may be directly integrally formed into the sound pickup channel 21 by injection molding, and compared with an additional silica gel sound guide sleeve, the embodiment of the utility model can omit the installation step of the silica gel sound guide sleeve and does not need to additionally provide a part for fixing the silica gel sound guide sleeve, thereby reducing the production cost and the manufacturing difficulty of the sound pickup device. Further, since the second section 212 is of a horn-shaped structure, it may be understood that the second section 212 has a draft angle, so that the second section is conveniently demolded after the injection molding of the housing 200, so as to further reduce the production difficulty of the pick-up device, and further reduce the damage probability caused by adhesion between the second section 212 and the mold during the demolding process, thereby improving the pick-up effect of the microphone assembly 100.

It may be further appreciated that, since a sound guiding silicone sleeve is reduced between the microphone assembly 100 and the exterior of the housing 200, the sound pickup apparatus may be lighter and thinner according to the embodiment of the present utility model, and accordingly, the electronic device provided with the sound pickup apparatus of the embodiment of the present utility model may be lighter and thinner; in the second aspect, the gap between the sound guiding silicone cover and the housing 200 is omitted, so that the sealing effect from the microphone assembly 100 to the sound pickup channel 21 outside the housing 200 is better, and the sound pickup effect of the microphone assembly 100 is improved. Therefore, the pickup device provided by the embodiment of the utility model has a good pickup effect and simultaneously meets the actual requirement of easy production.

In addition, since the first section 211 and the second section 212 are vertically connected, since the pickup channel 21 can be understood as being L-shaped, some foreign matters such as a pick-up pin of a mobile phone cannot be directly poked into the microphone assembly 100 through the pickup channel 21, thereby improving the safety performance of the microphone assembly 100.

In some embodiments, the microphone assembly 100 is configured such that the resonance frequency is greater than 16KHZ, thereby enabling the microphone assembly 100 to meet the frequency response requirements of far-field speech.

Based on this, please continue to refer to fig. 3, fig. 3 is a partial enlarged view at X in fig. 2. The aperture D1 of the first section 211 is greater than or equal to 1.5 millimeters. Along the axial line direction of the second section 212, the total length L2 of the second section 212 and the first section 211 is less than or equal to 4.8 mm. The aperture L3 of the second section 212, which is open near the end of the first section 211, is greater than or equal to 1.2 mm. The second section 212 has an aperture D2 greater than or equal to 1.5 mm open at an end remote from the first section 211. Further, the microphone assembly 100 is made to float less than 3dB up and down over a frequency response between 100KHZ and 8 KHZ.

Illustratively, the aperture D1 of the first section 211 may be 1.5 millimeters. The length L1 of the first section 211 is 2.1 mm along the axial line direction of the first section 211. Along the axial line direction of the second section 212, the total length L2 of the second section 212 and the first section 211 is 4.8 mm. The aperture L3 of the second section 212, which is open near the end of the first section 211, is 1.2 mm. The second section 212 has an aperture D2 of 1.5 mm open at an end remote from the first section 211. Furthermore, it is ensured that the microphone assembly 100 may have a good far-field pick-up when the resonance frequency of the microphone assembly 100 is greater than 16 KHZ.

Of course, in some other embodiments, the aperture D1 of the first section 211 may be 1.59 millimeters. The length L1 of the first section 211 is 2.2 mm along the axial line direction of the first section 211. Along the axial line direction of the second section 212, the total length L2 of the second section 212 and the first section 211 is 4.6 mm. The aperture L2 of the second section 212, which is open near the end of the first section 211, is 1.3 mm. The aperture D2 of the end of the second section 212 remote from the first section 211 is 1.6 mm, which is not limited in this embodiment of the present utility model.

With continued reference to fig. 4, fig. 4 is an exploded view of a portion of the sound pickup apparatus or television of fig. 1 from another perspective. The number of sound pickup channels 21 is at least one. The inner surface of the housing 200 is provided with at least one sealing surface 22, each sealing surface 22 being formed with an opening of the first section 211, the microphone assembly 100 being abutted against the sealing surface 22. Further, a seal is formed between the microphone assembly 100 and the sound pickup passage 21, thereby improving the sound pickup effect of the microphone assembly 100.

For example, the number of the sealing surface 22 and the sound pickup passage 21 is at least two. At least two microphones 12 may be provided on the circuit board 11. The circuit board 11 is closely attached to at least two sealing surfaces 22. The pick-up aperture of each microphone 12 communicates with an opening of one of the first segments 211. Further, each microphone assembly 100 may pick up sound with a plurality of microphones 12 to enhance the pick-up effect of the microphone assembly 100.

Of course, the number of the sealing surface 22 and the number of the pick-up channels 21 may be one, and accordingly, the number of the microphones 12 on the circuit board 11 may be only one, which is not limited in the embodiment of the present utility model.

The ratio of the width of the sealing surface 22 to the aperture of the first section 211 is greater than or equal to 25. Then, the sealing surface 22 area between the sealing surface 22 and the microphone assembly 100 can be made larger, thereby improving the sealing effect between the microphone assembly 100 and the sound pickup passage 21.

To prevent the sealing surface 22 from being excessively large, resulting in excessive waste of space inside the housing 200, the ratio of the width of the sealing surface 22 to the aperture of the first section 211 is less than or equal to 65. For example, the ratio of the width of the sealing surface 22 to the aperture of the first section 211 may be 25, 27.5, 31.4, 40, 42.8, 53.33, or 65, as embodiments of the utility model are not limited.

In some embodiments, the microphone assembly 100 may include a circuit board 11 and a microphone 12. The microphone 12 is mounted on the circuit board 11. Further, a plurality of driving circuits, analog-to-digital converters, etc. may be provided on the circuit board 11 to cooperate with the microphone 12 to drive the microphone 12 for pickup operation.

The microphone 12 may be mounted on a side of the circuit board 11 opposite to the first section 211, so that the circuit board 11 may be better pressed against the opening end surface of the first section 211, thereby improving the sealing effect between the microphone assembly 100 and the housing 200, and further improving the pickup effect of the microphone assembly 100.

Of course, in some other embodiments, the microphone 12 may be mounted on a side of the circuit board 11 facing the first section 211, which is not limited by the embodiment of the present utility model.

Microphone assembly 100 may also include a silicone seal 13. The silicone sealing strip 13 is sandwiched between the circuit board 11 and the open end face of the first section 211. Alternatively, it is also understood that the silicone sealing strip 13 is tightly attached to the open end face of the first section 211. The circuit board 11 is closely attached to the surface of the side, facing away from the first section 211, of the silicone sealing strip 13. Furthermore, by means of the good deformability of the silica gel, the silica gel sealing strip 13 can achieve a good sealing effect between the circuit board 11 and the housing 200, so that the pickup effect of the pickup device is improved.

In some embodiments, the silicone sealing strip 13 may be adhered and fixed to the circuit board 11 and the opening end surface of the first section 211, so as to further improve the sealing effect of the silicone sealing strip 13.

Specifically, the silica gel sealing strip 13 may be provided with a first sound pickup hole, the circuit board 11 may be provided with a second sound pickup hole, the opening of the first section 211, the first sound pickup hole and the second sound pickup hole are sequentially communicated, and the microphone 12 covers the second sound pickup hole, so that the microphone 12 can pick up sound outside the housing 200 through the second sound pickup hole, the first sound pickup hole and the sound pickup channel 21.

In some embodiments, the housing 200 may be provided with a first positioning structure 23, and the circuit board 11 may be provided with a second positioning structure 14, and the first positioning structure 23 and the second positioning structure 14 are in guiding engagement to achieve positioning of the circuit board 11 and the housing 200.

For example, the first positioning structure 23 may include a first positioning post, and the second positioning structure 14 may include a first positioning hole through which the first positioning post passes. Still alternatively, the first positioning structure 23 may include a second positioning hole, and the second positioning structure 14 includes a second positioning post, where the second positioning post passes through the second positioning hole.

In particular, the first positioning post may be protruding from the sealing surface 22. Of course, in some other embodiments, the first positioning post may be disposed at another location of the housing 200, which is not limited by the embodiment of the present utility model.

In some embodiments, microphone assembly 100 further includes a fastener 15. The fastener 15 is inserted through the circuit board 11 and connected to the housing 200, so that the circuit board 11 is fixedly connected to the housing 200. Further, the microphone 12 can be firmly and reliably attached to the housing 200 by the fastener 15.

Specifically, the fastening member 15 may include a fastening screw, the fastening member 15 may also include a glue nail, and the fastening member 15 may further include a plurality of buckles, which is not limited in the embodiment of the present utility model, and it is understood that any fastening member 15 capable of connecting and fixing the circuit board 11 and the housing 200 is within the scope of the embodiment of the present utility model.

Specifically, the number of the fasteners 15 may be one, or may be plural, such as two, three, four, or five, which is not limited in the embodiment of the present utility model.

With continued reference to fig. 1 and 2, embodiments of the present utility model also provide a television that may include a microphone assembly 100 and a housing 200. The microphone assembly 100 is housed in the housing 200. The housing 200 is integrally formed with a pickup channel 21, the pickup channel 21 including a first section 211 and a second section 212 in vertical communication. The microphone assembly 100 is mounted at the opening of the first section 211. The opening of the second section 212 is formed in the outer surface of the housing 200. Further, the microphone assembly 100 may pick up sound outside the housing 200 through the sound pickup passage 21.

In actual production, the housing 200 may be directly integrally formed into the sound pickup channel 21 by injection molding, and compared with an additional silica gel sound guide sleeve, the embodiment of the utility model can omit the installation step of the silica gel sound guide sleeve and does not need to additionally provide a part for fixing the silica gel sound guide sleeve, thereby reducing the production cost and the manufacturing difficulty of the television.

It will also be appreciated that the first aspect of the present utility model may make the television lighter and thinner due to the reduced one sound guiding silicone sleeve between the microphone assembly 100 and the exterior of the housing 200; in the second aspect, the gap between the sound guiding silicone cover and the housing 200 is omitted, so that the sealing effect from the microphone assembly 100 to the sound pickup channel 21 outside the housing 200 is better, and the sound pickup effect of the microphone assembly 100 is improved.

In addition, since the first section 211 and the second section 212 are vertically connected, since the pickup channel 21 can be understood as an L-shape, some foreign matters such as a pick-up pin of a mobile phone cannot be directly poked into the microphone assembly 100 through the pickup channel 21, thereby improving the safety performance of the microphone assembly 100.

In some embodiments, the inner diameter of the second section 212 gradually decreases in a direction along the axis of the second section 212 away from the exterior of the housing 200. In other words, the inner surface of the second section 212 is inclined toward the direction approaching the axis of the second section 212 in the direction of the axis of the second section 212 away from the outside of the housing 200. Of course, it is also simply understood that the second section 212 is a horn-like structure with an inner diameter gradually expanding in a direction away from the first section 211.

It may be understood that the second section 212 has a draft angle, so that the second section is conveniently demolded after the injection molding of the housing 200, thereby further reducing the difficulty in producing the television, and reducing the probability of damage caused by adhesion of the second section 212 to the mold during the demolding process, so as to improve the pick-up effect of the microphone assembly 100.

Based on this, as shown in fig. 3, the aperture D1 of the first section 211 is greater than or equal to 1.5 mm. Along the axial line direction of the second section 212, the total length L2 of the second section 212 and the first section 211 is less than or equal to 4.8 mm. The aperture L3 of the second section 212, which is open near the end of the first section 211, is greater than or equal to 1.2 mm. The second section 212 has an aperture D2 greater than or equal to 1.5 mm open at an end remote from the first section 211. Further, the microphone assembly 100 is made to float less than 3dB up and down over a frequency response between 100KHZ and 8 KHZ.

In some embodiments, as shown in fig. 4, the number of pickup channels 21 is at least one. The inner surface of the housing 200 is provided with at least one sealing surface 22, each sealing surface 22 being formed with an opening of the first section 211, the microphone assembly 100 being abutted against the sealing surface 22. Further, a seal is formed between the microphone assembly 100 and the sound pickup passage 21, thereby improving the sound pickup effect of the microphone assembly 100.

Microphone assembly 100 may also include a silicone seal 13. The silicone sealing strip 13 is sandwiched between the circuit board 11 and the open end face of the first section 211. Alternatively, it is also understood that the silicone sealing strip 13 is tightly attached to the open end face of the first section 211. The circuit board 11 is closely attached to the surface of the side, facing away from the first section 211, of the silicone sealing strip 13. Furthermore, through the good deformability of silica gel, the silica gel sealing strip 13 can play a very good sealing effect between the circuit board 11 and the shell 200, thereby improving the pickup effect of the television.

For example, the first positioning structure 23 may include a first positioning post, and the second positioning structure 14 may include a first positioning hole through which the first positioning post passes. Alternatively, the first positioning structure 23 may include a second positioning hole, the second positioning structure 14 includes a second positioning post, the second positioning post is disposed through the second positioning hole,

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The pickup device, the electronic device and the television provided by the embodiments of the present utility model are described in detail, and specific examples are applied to illustrate the principles and the embodiments of the present utility model, and the description of the above embodiments is only used to help understand the method and the core idea of the present utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present utility model, the present description should not be construed as limiting the present utility model in summary.

Claims

1. The pickup device is characterized by comprising a microphone assembly and a shell, wherein the microphone assembly is accommodated in the shell, a pickup channel is integrally formed in the shell, the pickup channel comprises a first section and a second section which are vertically communicated, the microphone assembly is installed at an opening of the first section, and an opening of the second section is positioned on the outer surface of the shell; the inner surface of the second section is obliquely arranged towards the direction close to the axis of the second section along the direction that the axis of the second section is far away from the outer part of the shell.

2. The sound pickup apparatus of claim 1, wherein,

the resonance frequency point of the microphone component is larger than 16KHZ;

3. The sound pickup apparatus according to claim 2, wherein,

the aperture of the first section is 1.5 mm;

4. The sound pickup apparatus of claim 1, wherein the number of sound pickup channels is at least one;

5. The pickup device of claim 4, wherein a ratio of a width of the sealing surface to an aperture of the first section is less than or equal to 65.

6. The sound pickup apparatus according to any one of claims 1 to 5, wherein the microphone assembly includes:

7. The sound pickup apparatus as claimed in claim 6, wherein,

the silica gel sealing strip is respectively adhered and fixed with the circuit board and the opening end face of the first section;

8. An electronic apparatus comprising the sound pickup apparatus according to any one of claims 1 to 7.

9. The utility model provides a TV, its characterized in that includes microphone subassembly and shell, the microphone subassembly accept in the shell, shell integrated into one piece has the pickup passageway, the pickup passageway is including the first section and the second section of vertical intercommunication, the microphone subassembly install in the opening part of first section, the opening part of second section is located the surface of shell.

10. The television of claim 9, wherein the inner surface of the second section is disposed obliquely in a direction toward the axis of the second section in a direction away from the exterior of the housing.

11. The television of claim 10, wherein,

the resonance frequency point of the microphone assembly is larger than or equal to 16KHZ;

12. The television of claim 11, wherein,

the aperture of the first section is 1.5 mm;

13. The television of claim 9, wherein the number of sound pickup channels is at least one;

14. The television of claim 13, wherein a ratio of a width of the sealing surface to an aperture of the first segment is less than or equal to 65.

15. The television of any one of claims 11 to 14, wherein the microphone assembly comprises: