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CN-224233825-U - Earphone

CN224233825UCN 224233825 UCN224233825 UCN 224233825UCN-224233825-U

Abstract

The application provides an earphone which comprises an antenna module, wherein the antenna module comprises an antenna, a main board and a switching device, a first end of the switching device is electrically connected with a radio frequency feed source, a second end of the switching device is electrically connected with a first feed end of the antenna, a third end of the switching device is electrically connected with a second feed end of the antenna, a fourth end of the switching device is connected with a grounding end, in a first state, the first feed end is electrically connected with the radio frequency feed source through the switching device, the second feed end is grounded through the switching device, so that the antenna has a first radiation state, in a second state, the first feed end is grounded through the switching device, the second feed end is electrically connected with the radio frequency feed source through the switching device, and the radiation patterns of the first radiation state and the second radiation state are different. According to the application, the switching device is arranged, so that the antenna can be switched between the first radiation state and the second radiation state, the antenna pattern complementation can be effectively performed, the radiation performance is improved, and the sound emitting and blocking of the earphone are reduced.

Inventors

  • CHEN CHENG

Assignees

  • 安克创新科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (13)

  1. 1. An earphone comprising an antenna module, wherein the antenna module comprises: an antenna having a first feed end and a second feed end; The main board comprises a grounding end and a radio frequency feed source; The switching device comprises a first end, a second end, a third end, a fourth end, a first state and a second state, wherein the first end of the switching device is electrically connected with the radio frequency feed source, the second end of the switching device is electrically connected with the first feed end, the third end of the switching device is electrically connected with the second feed end, and the fourth end of the switching device is connected with the grounding end; In the first state, the first feed end is electrically connected with the radio frequency feed source through the switching device, and the second feed end is grounded through the switching device, so that the antenna has a first radiation state; In the second state, the first feed end is grounded through the switching device, and the second feed end is electrically connected with the radio frequency feed source through the switching device, so that the antenna has a second radiation state; Wherein the radiation patterns of the first radiation state and the second radiation state are different.
  2. 2. The earphone of claim 1, wherein the antenna comprises a first radiating conductor and a second radiating conductor, the first radiating conductor having the first feed end and the second radiating conductor having the second feed end, the first radiating conductor and the second radiating conductor being spaced apart.
  3. 3. The earphone of claim 2, wherein a side of the first radiation conductor away from the second radiation conductor is a first radiation portion, and the first radiation portion is disposed in an inclined manner; The side, far away from the first radiation conductor, of the second radiation conductor is provided with a second radiation part which is obliquely arranged; the inclined direction of the first radiation part and the inclined direction of the second radiation part form an included angle.
  4. 4. A headset according to claim 3, characterized in that the first radiation part is cambered and/or the second radiation part is cambered.
  5. 5. The earphone of claim 2, wherein the switching device is disposed on the motherboard; The first feed end is positioned at one end of the first radiation conductor far away from the second radiation conductor, and is electrically connected with the second end of the switching device through a first elastic sheet; The second feed end is located at one end, far away from the first radiation conductor, of the second radiation conductor, and the second feed end is electrically connected with the third end of the switching device through a second elastic piece.
  6. 6. The earphone of claim 5, wherein the first radiating conductor, the second radiating conductor, the first spring and the second spring enclose to form a receiving cavity; the earphone also comprises a battery, and the battery is arranged in the accommodating cavity.
  7. 7. The earphone of claim 6, wherein a spacing between the first radiating conductor and the battery is in the range of 0.5-2mm; and/or the distance between the second radiation conductor and the battery is in the range of 0.5-2mm.
  8. 8. The earphone of claim 5, further comprising a mounting cover that is fastened to the main board to form a mounting cavity, wherein the first and second radiating conductors are located in the mounting cavity and respectively attached to an inner wall of the mounting cover.
  9. 9. The earphone of claim 8 further comprising a first magnet disposed between the main board and the first radiating conductor and coupled to the mounting housing, and a second magnet disposed between the main board and the second radiating conductor and coupled to the mounting housing.
  10. 10. The earphone of any one of claims 1 to 9, wherein the motherboard further comprises a chip having an input-output interface and the radio frequency feed, the input-output interface being electrically connected to the switching device for controlling the switching device to switch to the first state or the second state.
  11. 11. The earphone of claim 10, further comprising a signal detection device electrically coupled to the chip, the signal detection device configured to detect a received signal strength value of the antenna in the first radiation state and the second radiation state.
  12. 12. The earphone of any one of claims 1 to 9, wherein the switching device is a double pole double throw switch.
  13. 13. The headset of any one of claims 1 to 9, further comprising: the antenna module is arranged in the battery compartment; The sound generating part is provided with a sound generating device; The battery compartment and the sounding part are respectively connected with two ends of the connecting part, a connecting piece is arranged in the connecting part, and two ends of the connecting piece are respectively connected with the antenna module and the sounding device.

Description

Earphone Technical Field The utility model relates to the technical field of earphone equipment, in particular to an earphone. Background With the rapid development of TWS (truly wireless stereo) earphone technology, open designs are popular for their excellent wearing comfort. At present, the open earphone can be divided into two appearance designs of a hanging ear type and an ear clip type, and the two appearance designs are consistent with the sounding principle of the in-ear earphone, but the hanging ear type earphone is hung outside the concha cavity through a silica gel ear hook, and the ear clip type earphone is clipped on the auricle. In open earphone designs, compactness and portability are fundamental challenges, but such compact designs also present technical challenges in that limited space constrains antenna size, thereby affecting wireless transmission performance. When a user plays high-code-rate audio, a small antenna easily causes unstable signals, and the problems of music blocking and the like are caused. Disclosure of utility model The utility model aims to provide an earphone to solve the problem that the existing earphone is unstable in signal due to the fact that the size of an antenna is limited. In one aspect, the present application provides an earphone, including an antenna module, the antenna module includes: an antenna having a first feed end and a second feed end; The main board comprises a grounding end and a radio frequency feed source; The switching device comprises a first end, a second end, a third end, a fourth end, a first state and a second state, wherein the first end of the switching device is electrically connected with the radio frequency feed source, the second end of the switching device is electrically connected with the first feed end, the third end of the switching device is electrically connected with the second feed end, and the fourth end of the switching device is connected with the grounding end; In the first state, the first feed end is electrically connected with the radio frequency feed source through the switching device, and the second feed end is grounded through the switching device, so that the antenna has a first radiation state; In the second state, the first feed end is grounded through the switching device, and the second feed end is electrically connected with the radio frequency feed source through the switching device, so that the antenna has a second radiation state; Wherein the radiation patterns of the first radiation state and the second radiation state are different. Further, the antenna comprises a first radiation conductor and a second radiation conductor, wherein the first radiation conductor and the second radiation conductor are arranged at intervals, the first radiation conductor is provided with the first feed end, and the second radiation conductor is provided with the second feed end. Further, a first radiation part is arranged at one side of the first radiation conductor far away from the second radiation conductor, and the first radiation part is obliquely arranged; The side, far away from the first radiation conductor, of the second radiation conductor is provided with a second radiation part which is obliquely arranged; the inclined direction of the first radiation part and the inclined direction of the second radiation part form an included angle. Further, the first radiation portion is in a cambered surface shape, and/or the second radiation portion is in a cambered surface shape. Further, the switching device is arranged on the main board; The first feed end is positioned at one end of the first radiation conductor far away from the second radiation conductor, and is electrically connected with the second end of the switching device through a first elastic sheet; The second feed end is located at one end, far away from the first radiation conductor, of the second radiation conductor, and the second feed end is electrically connected with the third end of the switching device through a second elastic piece. Further, the first radiation conductor, the second radiation conductor, the first elastic piece and the second elastic piece are enclosed to form a containing cavity; the earphone also comprises a battery, and the battery is arranged in the accommodating cavity. Further, the distance between the first radiation conductor and the battery is in the range of 0.5-2mm; and/or the distance between the second radiation conductor and the battery is in the range of 0.5-2mm. The earphone further comprises a mounting cover, wherein the mounting cover and the main board are buckled to form a mounting cavity, and the first radiation conductor and the second radiation conductor are positioned in the mounting cavity and respectively attached to the inner wall of the mounting cover. Further, the earphone also comprises a first magnet and a second magnet, wherein the first magnet is arranged between the main board and the first radiati