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EP-4498663-B1 - AUDIO DEVICE AND TERMINAL DEVICE

EP4498663B1EP 4498663 B1EP4498663 B1EP 4498663B1EP-4498663-B1

Inventors

  • MAO, Chuncheng
  • LIU, Jinkun
  • CUI, Jiaxuan
  • MA, DONG

Dates

Publication Date
20260506
Application Date
20230427

Claims (14)

  1. A terminal device, comprising: a microphone (110), a flexible circuit board (120), a support (130), a first reinforcing member (10), a second reinforcing member (11), a seal member (12, 240) and a structural member (230), wherein the microphone (110) is located between the support (130) and the flexible circuit board (120); a contact region of the flexible circuit board (120) with the microphone (110) comprises a first hole for an airflow of audio to circulate; the first reinforcing member (10) is located between the support (130) and the flexible circuit board (120) and is connected to the support (130) and the flexible circuit board (120); the first reinforcing member (10) is located around the microphone (110); the second reinforcing member (11) is located between the flexible circuit board (120) and the seal member (12, 240) and is connected to the flexible circuit board (120) and the seal member (12, 240); a space between the flexible circuit board (120) and a structural member (230) of the terminal device is sealed by the seal member (12, 240).
  2. The terminal device according to claim 1, wherein the support (130) comprises a groove; and the microphone (110) is located in the groove.
  3. The terminal device according to claim 1, wherein a first side of the first reinforcing member (10) is welded to the support (130), or the first side of the first reinforcing member (10) is bonded to the support (130) through a back adhesive (13).
  4. The terminal device according to claim 3, wherein a second side of the first reinforcing member (10) is welded to the flexible circuit board (120), or the second side of the first reinforcing member (10) is bonded to the flexible circuit board (120) through the back adhesive (13).
  5. The terminal device according to claim 4, wherein the first side of the first reinforcing member (10) is opposite to the second side of the first reinforcing member (10).
  6. The terminal device according to any one of claims 1 to 5, wherein the first reinforcing member (10) comprises a metal member or a composite fiber member.
  7. The terminal device according to any one of claims 1 to 6, wherein the seal member (12, 240) comprises a second hole for the airflow of the audio to circulate.
  8. The terminal device according to any one of claims 1 to 7, wherein the seal member (12, 240) comprises foam and/or a back adhesive (13).
  9. The terminal device according to claim 7, wherein the second reinforcing member (11) comprises a third hole for the airflow of the audio to circulate.
  10. The terminal device according to claim 9, wherein a first side of the second reinforcing member (11) is welded to the flexible circuit board (120), or the first side of the second reinforcing member (11) is bonded to the flexible circuit board (120) through the back adhesive (13); and a second side of the second reinforcing member (11) is welded to the seal member (12, 240), or the second side of the second reinforcing member (11) is bonded to the seal member (12, 240) through the back adhesive (13), and the first side of the second reinforcing member (11) is opposite to the second side of the second reinforcing member (11).
  11. The terminal device according to claim 5, wherein a first surface of the flexible circuit board (120) covers a surface of the second side of the first reinforcing member (10); and the first surface of the flexible circuit board (120) is a surface of the flexible circuit board (120) connected to the first reinforcing member (10).
  12. The terminal device according to claim 10, wherein a second surface of the flexible circuit board (120) covers a surface of the first side of the second reinforcing member (11); and the second surface of the flexible circuit board (120) is a surface of the flexible circuit board (120) connected to the first reinforcing member (10).
  13. The terminal device according to claim 2, wherein a depth of the groove is in a range of 0.5 mm to 1.5 mm; and a distance between a bottom of the microphone (110) and the groove is in a range of 0.05 mm to 0.25 mm.
  14. The terminal device according to any one of claims 1 to 13, wherein the structural member (230) comprises a cover or a housing.

Description

Priority is claimed to Chinese Patent Application No. 202210731107.8, filed with the China National Intellectual Property Administration on June 24, 2022 and entitled "AUDIO DEVICE AND TERMINAL DEVICE". TECHNICAL FIELD This disclosure generally relates to the field of electronic technologies, and the invention in particular relates to a terminal device. BACKGROUND Currently, to meet a calling need of users, mobile phones generally have an audio device such as a microphone (MIC) arranged therein. Further, to improve a noise reduction effect, some mobile phones are provided with the microphone not only on a bottom or a top, but also on a back. The microphone arranged on the back of the mobile phones may be referred to as a back MIC. When the back MIC needs to be arranged in a mobile phone and a circuit board in the mobile phone is a flexible circuit board, the back MIC is usually mounted in the mobile phone in a manner shown in FIG. 1. Referring to FIG. 1, a microphone 110 is usually arranged on a flexible circuit board 120. The flexible circuit board is bonded to a support 130 of a mobile phone. In addition, to reduce a risk that the microphone 110 falls off the support 130, a supporting member 140 configured to support the microphone 110 is usually arranged below the microphone 110. However, in this solution, an additional space needs to be reserved in the mobile phone for the supporting member. CN 108 429 829 A discloses an electronic component and an electronic device. The electronic component comprises an optical sensor and a transmitter, wherein the transmitter comprises a bottom end and a top end opposite to the bottom end, a reception part is arranged at the top end, the optical sensor is fixed on the end face of the top end, and the optical sensor is provided with a tone leading channel right opposite to the reception part. Through fixing the optical sensor on the end face of the top end of the transmitter, and arranging the tone leading channel corresponding to the reception part of the top end, sound is conducted to the transmitter via the tone leading channel, the condition that the transmitter receives sound normally is ensured, and thus the arrangement area of the electronic component is reduced. SUMMARY As described above, in the prior art, to prevent a microphone from falling off a support, a supporting member configured to support the microphone needs to be arranged. Therefore, in a terminal device, a space needs to be reserved for the supporting member. The object of the present invention is to provide a terminal device which can resolve this technical problem. This object is solved in particular by the attached independent claims and further embodiments and improvements of the invention are listed in the attached dependent claims. Hereinafter, up to the "brief description of the drawings", expressions like "...aspect according to the invention", "according to the invention", or "the present invention", relate to technical teaching of the broadest embodiment as claimed with the independent claims. Expressions like "implementation", "design", "optionally", "preferably", "scenario", "aspect" or similar relate to further embodiments as claimed, and expressions like "example", "...aspect according to an example", "the disclosure describes", or "the disclosure" describe technical teaching which relates to the understanding of the invention or its embodiments, which, however, is not claimed as such. In a first aspect according to the invention, the invention provides a terminal device, including: a microphone, a flexible circuit board, and a support. The microphone is located between the support and the flexible circuit board. A contact region between the flexible circuit board and the microphone includes a first hole for an airflow of audio to circulate. In the terminal device according to the invention, the microphone is located between the support and the flexible circuit board, and the support can provide a supporting function. Therefore, through the audio device, a risk that the microphone falls off the support can be reduced even if no supporting member is arranged. According to the invention, the terminal device further includes: a first reinforcing member. The first reinforcing member is located between the support and the flexible circuit board, and is located around the microphone and is connected thereto. In a possible implementation, a first side of the first reinforcing member is welded to the support, or the first side of the first reinforcing member is bonded to the support through a back adhesive. A second side of the first reinforcing member is welded to the flexible circuit board, or the second side of the first reinforcing member is bonded to the flexible circuit board through the back adhesive, and the first side of the first reinforcing member is opposite to the second side of the first reinforcing member. In a possible implementation, the first reinforcing member includes a m