Pickup apparatus, electronic device and television

Abstract

Disclosed in the present application are a pickup apparatus, an electronic device and a television. The pickup apparatus comprises a microphone assembly and a housing (200), the microphone assembly being contained in the housing (200), and a pickup channel being integrally formed in the housing (200). The pickup channel comprises a first section (211) and a second section (212) which are vertically communicated, the microphone assembly is mounted at an opening of the first section (211), and an opening of the second section (212) is located on the outer surface of the housing (200). In a direction of an axis of the second section (212) away from the outside of the housing (200), the inner surface of the second section (212) is obliquely arranged in a direction close to the axis of the second section (212).

Description

Audio equipment, electronic devices, and televisions

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 28, 2023, with application number 202321667983.5 and application name “Pickup device, electronic device and television”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of voice technology, and in particular relates to a sound pickup device, an electronic device and a television. Background Art

[0003] With the rapid development of intelligent voice technology, in addition to mobile devices such as mobile phones and handheld tablets, more and more devices such as televisions are beginning to be equipped with sound pickup devices to pick up sounds from the external environment.

[0004] In related technologies, the sound pickup device usually includes a microphone and a silicone sound guide sleeve. One end of the silicone sound guide sleeve is connected to the corresponding hole on the shell, and the other end of the silicone sound guide sleeve is connected to the sound pickup hole of the microphone, so that the microphone can pick up the sound outside the shell through the silicone sound guide sleeve. Technical issues

[0005] However, the assembly process requirements of the silicone sound guide sleeve are relatively high, which makes the production of the pickup device more difficult. Technical Solutions

[0006] The embodiments of the present application provide a sound pickup device, an electronic device, and a television, which can reduce the difficulty of producing the sound pickup device.

[0007] In a first aspect, an embodiment of the present application provides a sound pickup device, comprising a microphone assembly and a housing, wherein the microphone assembly is accommodated in the housing, and the housing is integrally formed with a sound pickup channel, wherein the sound pickup channel comprises a first section and a second section that are vertically connected, and the microphone assembly is installed at the opening of the first section, and the opening of the second section is located on the outer surface of the housing; wherein, along the direction of the axis of the second section away from the outside of the housing, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

[0008] Optionally, the resonant frequency of the microphone assembly is greater than 16 kHz;

[0009] The aperture of the first section is greater than or equal to 1.5 mm;

[0010] Along the axis of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm;

[0011] The aperture of the opening at one end of the second section close to the first section is greater than or equal to 1.2 mm;

[0012] The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

[0013] Optionally, the aperture of the first section is 1.5 mm;

[0014] Along the axis direction of the first segment, the length of the first segment is 2.1 mm;

[0015] Along the axis of the second segment, the total length of the second segment and the first segment is 4.8 mm;

[0016] The aperture of the opening at one end of the second section close to the first section is 1.2 mm;

[0017] The aperture of the opening at one end of the second section away from the first section is 1.5 mm.

[0018] Optionally, the number of the sound pickup channel is at least one;

[0019] The inner surface of the shell is provided with at least one sealing surface, each of the sealing surfaces forms an opening of the first section, the sealing surface is tightly fitted with the microphone assembly, and the ratio of the width of the sealing surface to the aperture of the first section is greater than or equal to 25.

[0020] Optionally, the ratio of the width of the sealing surface to the aperture of the first section is less than or equal to 65.

[0021] Optionally, the microphone assembly includes:

[0022] A silicone sealing strip, tightly fitting the open end surface of the first section;

[0023] A circuit board is tightly fitted to a surface of the silicone sealing strip facing away from the first section; and

[0024] The microphone is mounted on a side of the circuit board facing away from the silicone sealing strip.

[0025] Optionally, the silicone sealing strip is bonded and fixed to the circuit board and the open end surface of the first section respectively;

[0026] The microphone assembly further includes a fastener, which passes through the circuit board and is connected to the housing, so that the circuit board and the housing are connected and fixed.

[0027] In a second aspect, an embodiment of the present application further provides an electronic device, comprising a sound pickup device, the sound pickup device comprising a microphone assembly and a housing, the microphone assembly being housed in the housing, the housing being integrally formed with a sound pickup channel, the sound pickup channel comprising a first section and a second section that are vertically connected, the microphone assembly being installed at the opening of the first section, and the opening of the second section being located on the outer surface of the housing; wherein, along the direction of the axis of the second section away from the outside of the housing, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

[0028] Optionally, the resonant frequency of the microphone assembly is greater than 16 kHz;

[0029] The aperture of the first section is greater than or equal to 1.5 mm;

[0030] Along the axis of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm;

[0031] The aperture of the opening at one end of the second section close to the first section is greater than or equal to 1.2 mm;

[0032] The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

[0033] Optionally, the aperture of the first section is 1.5 mm;

[0034] Along the axis direction of the first segment, the length of the first segment is 2.1 mm;

[0035] Along the axis of the second segment, the total length of the second segment and the first segment is 4.8 mm;

[0036] The aperture of the opening at one end of the second section close to the first section is 1.2 mm;

[0037] The aperture of the opening at one end of the second section away from the first section is 1.5 mm.

[0038] Optionally, the number of the sound pickup channel is at least one;

[0039] The inner surface of the shell is provided with at least one sealing surface, each of the sealing surfaces forms an opening of the first section, the sealing surface is tightly fitted with the microphone assembly, and the ratio of the width of the sealing surface to the aperture of the first section is greater than or equal to 25.

[0040] Optionally, the ratio of the width of the sealing surface to the aperture of the first section is less than or equal to 65.

[0041] Optionally, the microphone assembly includes:

[0042] A silicone sealing strip, tightly fitting the open end surface of the first section;

[0043] A circuit board is tightly fitted to a surface of the silicone sealing strip facing away from the first section; and

[0044] The microphone is mounted on a side of the circuit board facing away from the silicone sealing strip.

[0045] In a third aspect, an embodiment of the present application further provides a television, comprising a microphone assembly and a housing, wherein the microphone assembly is housed in the housing, and the housing is integrally formed with a sound pickup channel, wherein the sound pickup channel comprises a first section and a second section vertically connected, the microphone assembly is installed at the opening of the first section, and the opening of the second section is formed on the outer surface of the housing.

[0046] Optionally, along the direction of the axis of the second section away from the outside of the shell, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

[0047] Optionally, the resonant frequency of the microphone assembly is greater than or equal to 16 kHz;

[0048] The aperture of the first section is greater than or equal to 1.5 mm;

[0049] Along the axis of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm;

[0050] The aperture of the opening at one end of the second section close to the first section is greater than or equal to 1.2 mm;

[0051] The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

[0052] Optionally, the aperture of the first section is 1.5 mm;

[0053] Along the axis direction of the first segment, the length of the first segment is 2.1 mm;

[0054] Along the axis of the second segment, the total length of the second segment and the first segment is 4.8 mm;

[0055] The aperture of the opening of the second section at one end close to the first section is equal to 1.2 mm;

[0056] The aperture of the opening at one end of the second section away from the first section is equal to 1.5 mm.

[0057] Optionally, the number of the sound pickup channel is at least one;

[0058] The inner surface of the housing is provided with at least one sealing surface, each of the sealing surfaces forms 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.

[0059] Optionally, the ratio of the width of the sealing surface to the aperture of the first section is less than or equal to 65.

[0060] Optionally, the microphone assembly includes:

[0061] A silicone sealing strip, tightly fitting the open end surface of the first section;

[0062] A circuit board is tightly fitted to a surface of the silicone sealing strip facing away from the first section; and

[0063] a microphone, mounted on a side of the circuit board facing away from the silicone sealing strip;

[0064] A fastener is provided through the circuit board and connected to the housing so as to connect and fix the circuit board to the housing. Beneficial effects

[0065] In the embodiment of the present application, the shell can be directly integrally molded with a sound pickup channel by injection molding. Therefore, compared to the additional independent provision of a silicone sound guide sleeve, it can not only improve the airtightness of the sound pickup channel, thereby improving the sound pickup effect of the sound pickup device, but also reduce the assembly difficulty of the sound pickup device by reducing the number of parts. Furthermore, the second section can also be simply understood as a trumpet-shaped structure, or the second section has a draft angle. Then, after the shell is injection molded, the sound pickup channel of the shell is easier to demold, thereby further reducing the production difficulty of the sound pickup device. It can be seen that the sound pickup device of the embodiment of the present application has a good sound pickup effect while also taking into account the practical needs of easy production. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and beneficial effects of the present application apparent.

[0067] FIG1 is an exploded view of some parts of a sound pickup device or a television provided in an embodiment of the present application.

[0068] FIG2 is a cross-sectional view of the housing shown in FIG1 .

[0069] FIG3 is a partial enlarged view of point X in FIG2 .

[0070] FIG4 is an exploded view of some parts of the sound pickup device or the television shown in FIG1 from another perspective.

[0071] The numbers in the figure are: 100, microphone assembly; 11, circuit board; 12, microphone; 13, silicone sealing strip; 14, second positioning structure; 15, fastener; 200, housing; 21, sound pickup channel; 211, first section; 212, second section; 22, sealing surface; 23, first positioning structure. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0073] The embodiments of the present application provide a sound pickup device. The sound pickup device can be used independently. The sound pickup device can also be used in electronic devices. The electronic devices can include mobile phones, handheld tablet computers, car displays, computer monitors, and other electronic devices. The electronic devices can also be smart home appliances such as radios, stereos, refrigerators, washing machines, air conditioners, and clothes dryers, although the embodiments of the present application are not limited thereto.

[0074] Please refer to Figures 1 and 2. Figure 1 is an exploded view of some parts of the sound pickup device or television provided in an embodiment of the present application, and Figure 2 is a cross-sectional view of the housing shown in Figure 1. The sound pickup device 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 sound pickup channel 21. The sound pickup channel 21 includes a first section 211 and a second section 212 that are vertically connected. The microphone assembly 100 is installed at the opening of the first section 211, and the opening of the second section 212 is located on the outer surface of the housing 200. Furthermore, the microphone assembly 100 can pick up sounds outside the housing 200 through the sound pickup channel 21. In particular, the inner diameter of the second section 212 gradually decreases as the axis of the second section 212 moves away from the outside of the housing 200. In other words, as the axis of the second section 212 moves away from the outside of the housing 200, the inner surface of the second section 212 is tilted toward the axis of the second section 212. Of course, it can also be simply understood that the second section 212 is a trumpet-shaped structure with an inner diameter gradually expanding in a direction away from the first section 211 .

[0075] Then, in actual production, the housing 200 can be directly integrally molded with the sound pickup channel 21 by injection molding. Compared with the additional provision of a silicone sound guide sleeve, the embodiment of the present application can omit the installation step of the silicone sound guide sleeve and does not require additional parts for fixing the silicone sound guide sleeve, thereby reducing the production cost and manufacturing difficulty of the sound pickup device. Furthermore, since the second section 212 is a horn-shaped structure, it can also be understood that the second section 212 has a draft angle to facilitate demolding after the housing 200 is injection molded, thereby further reducing the production difficulty of the sound pickup device and reducing the probability of the second section 212 being damaged by adhesion to the mold during the demolding process, thereby improving the sound pickup effect of the microphone assembly 100.

[0076] It can also be understood that, since a sound-conducting silicone sleeve is removed between the microphone assembly 100 and the exterior of the housing 200, the embodiment of the present application can, on the one hand, make the sound pickup device thinner and lighter, and accordingly, the electronic device equipped with the sound pickup device of the embodiment of the present application can also be thinner and lighter. On the other hand, the gap at the connection between the sound-conducting silicone sleeve and the housing 200 is also omitted, so the sealing effect of the sound pickup channel 21 from the microphone assembly 100 to the exterior of the housing 200 is better, thereby improving the sound pickup effect of the microphone assembly 100. It can be seen that the sound pickup device of the embodiment of the present application not only has a good sound pickup effect, but also takes into account the practical needs of easy production.

[0077] In addition, since the first section 211 and the second section 212 are connected vertically, and the sound pickup channel 21 can also be understood as L-shaped, some foreign objects such as the card ejector pin of a mobile phone cannot directly penetrate the microphone assembly 100 through the sound pickup channel 21, thereby improving the safety performance of the microphone assembly 100.

[0078] In some embodiments, the microphone assembly 100 is configured to have a resonant frequency greater than 16 kHz, thereby enabling the microphone assembly 100 to meet the frequency response requirements of far-field speech.

[0079] Based on this, please continue to refer to Figure 3, which is a partial enlarged view of the X in Figure 2. The aperture D1 of the first section 211 is greater than or equal to 1.5 mm. Along the axial 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 opening at one end of the second section 212 close to the first section 211 is greater than or equal to 1.2 mm. The aperture D2 of the opening at one end of the second section 212 away from the first section 211 is greater than or equal to 1.5 mm. Furthermore, the frequency response of the microphone assembly 100 between 100 kHz and 8 kHz fluctuates by less than 3 dB.

[0080] Exemplarily, the aperture D1 of the first section 211 may be 1.5 mm. Along the axis of the first section 211, the length L1 of the first section 211 is 2.1 mm. Along the axis 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 opening at one end of the second section 212 close to the first section 211 is 1.2 mm. The aperture D2 of the opening at one end of the second section 212 away from the first section 211 is 1.5 mm. Furthermore, it can be ensured that when the resonant frequency of the microphone assembly 100 is greater than 16 kHz, the microphone assembly 100 can have a better far-field sound pickup effect.

[0081] Of course, in some other embodiments, the aperture D1 of the first section 211 may be 1.59 mm. Along the axis of the first section 211, the length L1 of the first section 211 is 2.2 mm. Along the axis 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 opening at the end of the second section 212 closest to the first section 211 is 1.3 mm. The aperture D2 of the opening at 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 application.

[0082] Please continue to refer to Figure 4, which is an exploded view of some parts of the sound pickup device or television shown in Figure 1 from another perspective. There is at least one sound pickup channel 21. The inner surface of the housing 200 is provided with at least one sealing surface 22. Each sealing surface 22 has an opening in the first section 211. The microphone assembly 100 is closely attached to the sealing surface 22. This creates a seal between the microphone assembly 100 and the sound pickup channel 21, thereby improving the sound pickup performance of the microphone assembly 100.

[0083] For example, the number of sealing surfaces 22 and sound pickup channels 21 is at least two. At least two microphones 12 may also be provided on the circuit board 11. The circuit board 11 is tightly fitted to the at least two sealing surfaces 22. The sound pickup hole of each microphone 12 is connected to an opening of the first section 211. Furthermore, each microphone assembly 100 can pick up sound through multiple microphones 12, thereby improving the sound pickup effect of the microphone assembly 100.

[0084] Of course, the number of the sealing surface 22 and the number of the sound pickup channel 21 may both be one, and accordingly, the number of the microphone 12 on the circuit board 11 may also be only one, which is not limited in the embodiment of the present application.

[0085] 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. Therefore, the sealing surface 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 channel 21.

[0086] To prevent the sealing surface 22 from being too large and causing 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 can be 25, 27.5, 31.4, 40, 42.8, 53.33, or 65, which is not limited in the embodiments of the present application.

[0087] 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. Furthermore, the circuit board 11 may be provided with some driving circuits, analog-to-digital converters, etc. that cooperate with the microphone 12 to drive the microphone 12 to pick up sound.

[0088] The microphone 12 can be installed on the side of the circuit board 11 facing away from the first section 211, so that the circuit board 11 can be better pressed against the open end face of the first section 211, thereby improving the sealing effect between the microphone assembly 100 and the housing 200, and thus improving the sound pickup effect of the microphone assembly 100.

[0089] Of course, in some other implementations, the microphone 12 may also be installed on the side of the circuit board 11 facing the first section 211 , which is not limited in this embodiment of the present application.

[0090] The microphone assembly 100 may further include a silicone sealing strip 13. The silicone sealing strip 13 is sandwiched between the circuit board 11 and the open end surface of the first section 211. Alternatively, it can also be understood that the silicone sealing strip 13 is tightly fitted with the open end surface of the first section 211. The circuit board 11 is tightly fitted with the surface of the silicone sealing strip 13 on the side facing away from the first section 211. Furthermore, through the good deformation ability of silicone, the silicone sealing strip 13 can achieve a good sealing effect between the circuit board 11 and the housing 200, thereby improving the sound pickup effect of the sound pickup device.

[0091] In some embodiments, the silicone sealing strip 13 may be bonded and fixed to the circuit board 11 and the open end surface of the first section 211 , respectively, thereby further improving the sealing effect of the silicone sealing strip 13 .

[0092] Specifically, a first sound pickup hole may be provided on the silicone sealing strip 13, and a second sound pickup hole may be provided on the circuit board 11. The opening of the first section 211, the first sound pickup hole, and the second sound pickup hole are connected in sequence, and the microphone 12 covers the second sound pickup hole, so that the microphone 12 can pick up sounds outside the housing 200 through the second sound pickup, the first sound pickup hole, and the sound pickup channel 21.

[0093] 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 . The first positioning structure 23 and the second positioning structure 14 cooperate with each other to achieve positioning of the circuit board 11 and the housing 200 .

[0094] For example, the first positioning structure 23 may include a first positioning post, the second positioning structure 14 may include a first positioning hole, and the first positioning post may pass through the first positioning hole. Alternatively, the first positioning structure 23 may include a second positioning hole, the second positioning structure 14 may include a second positioning post, and the second positioning post may pass through the second positioning hole.

[0095] Specifically, the first positioning post may be protruding from the sealing surface 22. Of course, in some other embodiments, the first positioning post may also be provided at other positions of the housing 200, which is not limited in the present embodiment.

[0096] In some embodiments, the microphone assembly 100 further includes a fastener 15. The fastener 15 is disposed through the circuit board 11 and connected to the housing 200, thereby securing the circuit board 11 to the housing 200. Furthermore, the fastener 15 allows the microphone 12 assembly to be securely and reliably mounted on the housing 200.

[0097] Specifically, the fastener 15 may include a fastening screw, the fastener 15 may also include a plastic nail, and the fastener 15 may also include some clips. The embodiment of the present application does not limit this. It can be understood that as long as the fastener 15 can connect and fix the circuit board 11 and the housing 200, it is within the protection scope of the embodiment of the present application.

[0098] Specifically, the number of fasteners 15 can be one, or multiple, such as two, three, four, or five, which is not limited in the embodiment of the present application.

[0099] Please continue to refer to Figures 1 and 2. An embodiment of the present application further provides a television, which 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 sound pickup channel 21, and the sound pickup channel 21 includes a first section 211 and a second section 212 that are vertically connected. The microphone assembly 100 is installed at the opening of the first section 211. The opening of the second section 212 is formed on the outer surface of the housing 200. Furthermore, the microphone assembly 100 can pick up sounds outside the housing 200 through the sound pickup channel 21.

[0100] Then, in actual production, the shell 200 can directly form the sound pickup channel 21 in one piece by injection molding. Compared with setting up an additional silicone sound guide sleeve, the embodiment of the present application can save the installation steps of the silicone sound guide sleeve, and there is no need to set up additional parts for fixing the silicone sound guide sleeve, thereby reducing the production cost and manufacturing difficulty of the TV.

[0101] It can also be understood that, due to the reduction of a sound-conducting silicone sleeve between the microphone assembly 100 and the outside of the shell 200, on the one hand, the embodiment of the present application can make the TV lighter and thinner; on the other hand, the gap at the connection between the sound-conducting silicone sleeve and the shell 200 is also omitted, so the sealing effect of the sound pickup channel 21 from the microphone assembly 100 to the outside of the shell 200 is better, thereby improving the sound pickup effect of the microphone assembly 100.

[0102] In addition, since the first section 211 and the second section 212 are connected vertically, and the sound pickup channel 21 can also be understood as L-shaped, some foreign objects such as the card ejector pin of a mobile phone cannot directly penetrate the microphone assembly 100 through the sound pickup channel 21, thereby improving the safety performance of the microphone assembly 100.

[0103] In some embodiments, the inner diameter of the second section 212 gradually decreases as the axis of the second section 212 moves away from the exterior of the housing 200. In other words, as the axis of the second section 212 moves away from the exterior of the housing 200, the inner surface of the second section 212 is inclined toward the axis of the second section 212. Of course, this can also be simply understood as the second section 212 being a trumpet-shaped structure with a gradually increasing inner diameter as it moves away from the first section 211.

[0104] It can also be understood that the second section 212 has a draft angle to facilitate demolding after the outer shell 200 is injection molded, thereby further reducing the difficulty of producing the TV, and can also reduce the probability of the second section 212 being damaged by adhesion to the mold during the demolding process, thereby improving the sound pickup effect of the microphone assembly 100.

[0105] In some embodiments, the microphone assembly 100 is configured to have a resonant frequency greater than 16 kHz, thereby enabling the microphone assembly 100 to meet the frequency response requirements of far-field speech.

[0106] Based on this, as shown in Figure 3, the aperture D1 of the first section 211 is greater than or equal to 1.5 mm. Along the axis 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 at the end closest to the first section 211 is greater than or equal to 1.2 mm. The aperture D2 of the second section 212 at the end away from the first section 211 is greater than or equal to 1.5 mm. Consequently, the frequency response of the microphone assembly 100 between 100 kHz and 8 kHz fluctuates by less than 3 dB.

[0107] Exemplarily, the aperture D1 of the first section 211 may be 1.5 mm. Along the axis of the first section 211, the length L1 of the first section 211 is 2.1 mm. Along the axis 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 opening at one end of the second section 212 close to the first section 211 is 1.2 mm. The aperture D2 of the opening at one end of the second section 212 away from the first section 211 is 1.5 mm. Furthermore, it can be ensured that when the resonant frequency of the microphone assembly 100 is greater than 16 kHz, the microphone assembly 100 can have a better far-field sound pickup effect.

[0108] Of course, in some other embodiments, the aperture D1 of the first section 211 may be 1.59 mm. Along the axis of the first section 211, the length L1 of the first section 211 is 2.2 mm. Along the axis 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 opening at the end of the second section 212 closest to the first section 211 is 1.3 mm. The aperture D2 of the opening at 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 application.

[0109] In some embodiments, as shown in FIG4 , there is at least one sound pickup channel 21 . The inner surface of the housing 200 is provided with at least one sealing surface 22 . Each sealing surface 22 has an opening in a first section 211 . The microphone assembly 100 is tightly attached to the sealing surface 22 . This creates a seal between the microphone assembly 100 and the sound pickup channel 21 , thereby improving the sound pickup performance of the microphone assembly 100 .

[0110] For example, the number of sealing surfaces 22 and sound pickup channels 21 is at least two. At least two microphones 12 may also be provided on the circuit board 11. The circuit board 11 is tightly fitted with the at least two sealing surfaces 22. The sound pickup hole of each microphone 12 is connected to an opening of the first section 211. Furthermore, each microphone assembly 100 can pick up sound through multiple microphones 12, thereby improving the sound pickup effect of the microphone assembly 100.

[0111] Of course, the number of the sealing surface 22 and the number of the sound pickup channel 21 may both be one, and accordingly, the number of the microphone 12 on the circuit board 11 may also be only one, which is not limited in the embodiment of the present application.

[0112] 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. Therefore, the sealing surface 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 channel 21.

[0113] To prevent the sealing surface 22 from being too large and causing 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 can be 25, 27.5, 31.4, 40, 42.8, 53.33, or 65, which is not limited in the embodiments of the present application.

[0114] 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. Furthermore, the circuit board 11 may be provided with some driving circuits, analog-to-digital converters, etc. that cooperate with the microphone 12 to drive the microphone 12 to pick up sound.

[0115] The microphone 12 can be installed on the side of the circuit board 11 facing away from the first section 211, so that the circuit board 11 can be better pressed against the open end face of the first section 211, thereby improving the sealing effect between the microphone assembly 100 and the housing 200, and thus improving the sound pickup effect of the microphone assembly 100.

[0116] Of course, in some other implementations, the microphone 12 may also be installed on the side of the circuit board 11 facing the first section 211 , which is not limited in this embodiment of the present application.

[0117] The microphone assembly 100 may further include a silicone sealing strip 13. The silicone sealing strip 13 is sandwiched between the circuit board 11 and the open end surface of the first section 211. Alternatively, it can be understood that the silicone sealing strip 13 is tightly fitted with the open end surface of the first section 211. The circuit board 11 is tightly fitted with the surface of the silicone sealing strip 13 on the side facing away from the first section 211. Furthermore, due to the excellent deformation ability of silicone, the silicone sealing strip 13 can provide a good sealing effect between the circuit board 11 and the housing 200, thereby improving the sound pickup effect of the TV.

[0118] In some embodiments, the silicone sealing strip 13 may be bonded and fixed to the circuit board 11 and the open end surface of the first section 211 , respectively, thereby further improving the sealing effect of the silicone sealing strip 13 .

[0119] Specifically, a first sound pickup hole may be provided on the silicone sealing strip 13, and a second sound pickup hole may be provided on the circuit board 11. The opening of the first section 211, the first sound pickup hole, and the second sound pickup hole are connected in sequence, and the microphone 12 covers the second sound pickup hole, so that the microphone 12 can pick up sounds outside the housing 200 through the second sound pickup, the first sound pickup hole, and the sound pickup channel 21.

[0120] 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 . The first positioning structure 23 and the second positioning structure 14 cooperate with each other to achieve positioning of the circuit board 11 and the housing 200 .

[0121] For example, the first positioning structure 23 may include a first positioning post, the second positioning structure 14 may include a first positioning hole, and the first positioning post is provided in the first positioning hole. Alternatively, the first positioning structure 23 may include a second positioning hole, the second positioning structure 14 may include a second positioning post, and the second positioning post is provided in the second positioning hole.

[0122] Specifically, the first positioning post may be protruding from the sealing surface 22. Of course, in some other embodiments, the first positioning post may also be provided at other positions of the housing 200, which is not limited in the present embodiment.

[0123] In some embodiments, the microphone assembly 100 further includes a fastener 15. The fastener 15 is disposed through the circuit board 11 and connected to the housing 200, thereby securing the circuit board 11 to the housing 200. Furthermore, the fastener 15 allows the microphone 12 assembly to be securely and reliably mounted on the housing 200.

[0124] Specifically, the fastener 15 may include a fastening screw, the fastener 15 may also include a plastic nail, and the fastener 15 may also include some clips. The embodiment of the present application does not limit this. It can be understood that as long as the fastener 15 can connect and fix the circuit board 11 and the housing 200, it is within the protection scope of the embodiment of the present application.

[0125] Specifically, the number of fasteners 15 can be one, or multiple, such as two, three, four, or five, which is not limited in the embodiment of the present application.

[0126] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0127] The above is a detailed introduction to the sound pickup device, electronic device and television provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A sound pickup device, wherein: The invention comprises a microphone assembly and a shell, wherein the microphone assembly is accommodated in the shell, the shell is integrally formed with a sound pickup channel, the sound pickup channel comprises a first section and a second section which are vertically connected, the microphone assembly is installed at the opening of the first section, and the opening of the second section is located on the outer surface of the shell; wherein, along the direction of the axis of the second section away from the outside of the shell, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

2. The sound pickup device according to claim 1, wherein: The resonant frequency of the microphone assembly is greater than 16KHZ; The aperture of the first section is greater than or equal to 1.5 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm; The aperture of the opening of one end of the second section close to the first section is greater than or equal to 1.2 mm; The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

3. The sound pickup device according to claim 2, wherein: The aperture of the first section is 1.5 mm; Along the axis direction of the first segment, the length of the first segment is 2.1 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is 4.8 mm; The aperture of the opening of the second section at one end close to the first section is 1.2 mm; The aperture of the opening at one end of the second section away from the first section is 1.5 mm.

4. The sound pickup device according to claim 1, wherein: The number of the sound pickup channel is at least one; The inner surface of the shell is provided with at least one sealing surface, each of the sealing surfaces forms an opening of the first section, the sealing surface is tightly fitted with the microphone assembly, and the ratio of the width of the sealing surface to the aperture of the first section is greater than or equal to 25.

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

6. The sound pickup device according to any one of claims 1 to 5, wherein: The microphone assembly comprises: A silicone sealing strip, tightly fitting with the opening end surface of the first section; A circuit board is closely attached to a surface of the silicone seal strip facing away from the first section; and The microphone is installed on a side of the circuit board facing away from the silicone sealing strip.

7. The sound pickup device according to claim 6, wherein: The silicone sealing strip is respectively bonded and fixed to the circuit board and the opening end surface of the first section; The microphone assembly further includes a fastener, which is passed through the circuit board and connected to the housing so that the circuit board is connected and fixed to the housing.

8. An electronic device, wherein: The invention comprises a sound pickup device, wherein the sound pickup device comprises a microphone assembly and a shell, wherein the microphone assembly is accommodated in the shell, and the shell is integrally formed with a sound pickup channel, wherein the sound pickup channel comprises a first section and a second section which are vertically connected, wherein the microphone assembly is installed at the opening of the first section, and the opening of the second section is located on the outer surface of the shell; wherein, along the direction of the axis of the second section away from the outside of the shell, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

9. The electronic device according to claim 8, wherein: The resonant frequency of the microphone assembly is greater than 16KHZ; The aperture of the first section is greater than or equal to 1.5 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm; The aperture of the opening of one end of the second section close to the first section is greater than or equal to 1.2 mm; The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

10. The electronic device according to claim 9, wherein: The aperture of the first section is 1.5 mm; Along the axis direction of the first segment, the length of the first segment is 2.1 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is 4.8 mm; The aperture of the opening of the second section at one end close to the first section is 1.2 mm; The aperture of the opening at one end of the second section away from the first section is 1.5 mm.

11. The electronic device according to claim 8, wherein: The number of the sound pickup channel is at least one; The inner surface of the shell is provided with at least one sealing surface, each of the sealing surfaces forms an opening of the first section, the sealing surface is tightly fitted with the microphone assembly, and the ratio of the width of the sealing surface to the aperture of the first section is greater than or equal to 25.

12. The electronic device according to claim 11, wherein: The ratio of the width of the sealing surface to the aperture of the first section is less than or equal to 65.

13. The electronic device according to any one of claims 8 to 12, wherein: The microphone assembly comprises: A silicone sealing strip, tightly fitting with the opening end surface of the first section; A circuit board is closely attached to a surface of the silicone seal strip facing away from the first section; and The microphone is installed on a side of the circuit board facing away from the silicone sealing strip.

14. A television, wherein It includes a microphone assembly and a shell, the microphone assembly is accommodated in the shell, the shell is integrally formed with a sound pickup channel, the sound pickup channel includes a first section and a second section that are vertically connected, the microphone assembly is installed at the opening of the first section, and the opening of the second section is located on the outer surface of the shell.

15. The television according to claim 14, wherein: Along the direction of the axis of the second section away from the exterior of the housing, the inner surface of the second section is inclined toward the direction close to the axis of the second section.

16. The television according to claim 15, wherein The resonant frequency of the microphone assembly is greater than or equal to 16KHZ; The aperture of the first section is greater than or equal to 1.5 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is less than or equal to 4.8 mm; The aperture of the opening of one end of the second section close to the first section is greater than or equal to 1.2 mm; The aperture of the opening at one end of the second section away from the first section is greater than or equal to 1.5 mm.

17. The television according to claim 16, wherein: The aperture of the first section is 1.5 mm; Along the axis direction of the first segment, the length of the first segment is 2.1 mm; Along the axis direction of the second segment, the total length of the second segment and the first segment is 4.8 mm; The aperture of the opening of the second section at one end close to the first section is equal to 1.2 mm; The aperture of the opening at one end of the second section away from the first section is equal to 1.5 mm.

18. The television according to claim 14, wherein: The number of the sound pickup channel is at least one; The inner surface of the shell is provided with at least one sealing surface, each of the sealing surfaces forms 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.

19. The television according to claim 18, wherein: The ratio of the width of the sealing surface to the aperture of the first section is less than or equal to 65.

20. The television according to any one of claims 16 to 19, wherein: The microphone assembly comprises: A silicone sealing strip, tightly fitting with the opening end surface of the first section; A circuit board is closely attached to a surface of the silicone seal strip facing away from the first section; and A microphone is mounted on a side of the circuit board facing away from the silicone sealing strip; A fastener is provided through the circuit board and connected to the housing so that the circuit board and the housing are connected and fixed.

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