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CN-224233836-U - Sounding monomer and sounding module

CN224233836UCN 224233836 UCN224233836 UCN 224233836UCN-224233836-U

Abstract

The utility model discloses a sound production monomer and a sound production module, and relates to the technical field of sound energy conversion, wherein the sound production monomer comprises a magnetic yoke and a magnetic circuit unit arranged on the magnetic yoke, the magnetic circuit unit comprises a central magnetic circuit and a side magnetic circuit arranged on the periphery of the central magnetic circuit, the central magnetic circuit and the side magnetic circuit are arranged at intervals and form a magnetic gap therebetween, a vibration system comprises a vibrating diaphragm, a voice coil and a magnetic piece arranged on the voice coil, the voice coil is positioned in the magnetic gap, one side of the voice coil is connected with the vibrating diaphragm, the other side of the voice coil is connected with the magnetic piece, the magnetic yoke is provided with a avoiding hole for avoiding the magnetic piece, the magnetic gap is communicated with the avoiding hole, the magnetic piece can provide acting force opposite to the restoring force direction of the vibrating diaphragm for the voice coil, the driving force of the voice coil to the vibrating diaphragm is effectively increased, and the performance of the sound production monomer is improved.

Inventors

  • CAI XIAODONG
  • LIU SONG

Assignees

  • 歌尔股份有限公司

Dates

Publication Date
20260512
Application Date
20250508
Priority Date
20240731

Claims (11)

  1. 1. A sound producing monomer comprising: The magnetic circuit system comprises a magnetic conducting yoke and a magnetic circuit unit arranged on the magnetic conducting yoke, wherein the magnetic circuit unit comprises a central magnetic circuit and a side magnetic circuit arranged on the periphery of the central magnetic circuit, and the central magnetic circuit and the side magnetic circuit are arranged at intervals and form a magnetic gap; The vibration system comprises a vibrating diaphragm, a voice coil and a magnetic piece arranged on the voice coil, wherein the voice coil is positioned in the magnetic gap, one side of the voice coil is connected with the vibrating diaphragm, the other side of the voice coil is connected with the magnetic piece, an avoidance hole for avoiding the magnetic piece is formed in the magnetic conduction yoke, the magnetic gap is communicated with the avoidance hole, and the magnetic piece can provide acting force opposite to the restoring force direction of the vibrating diaphragm for the voice coil.
  2. 2. The sound-producing unit as claimed in claim 1, wherein the number of the magnetic members is plural, the plural magnetic members are arranged at intervals along the circumferential direction of the voice coil, and the avoiding holes are arranged in correspondence with the number of the magnetic members one by one.
  3. 3. The sound generating unit according to claim 2, wherein the shape of the escape hole is adapted to the shape of the magnetic member; or the magnetic yoke comprises a central magnetic yoke and an edge magnetic yoke, wherein the central magnetic yoke is spaced from the edge magnetic yoke and the avoiding hole is formed between the central magnetic yoke and the edge magnetic yoke.
  4. 4. The sound-producing cell of claim 1, wherein the magnetic member comprises an annular magnetic member, and the magnetically permeable yoke comprises a central magnetically permeable yoke coupled to the central magnetic circuit and a side magnetically permeable yoke coupled to the side magnetic circuit, the central magnetically permeable yoke being spaced from and defining the relief aperture therebetween.
  5. 5. The sound generating unit according to claim 1, wherein the magnetic member is a magnetically permeable material or the magnetic member is a permanent magnetic material.
  6. 6. The sound-producing monomer of any one of claims 1 to 5, further comprising a rear cover, wherein a side of the magnetically permeable yoke facing away from the diaphragm is disposed on the rear cover.
  7. 7. The sound-producing monomer of claim 6, wherein the rear cover protrudes away from the diaphragm to form an avoidance groove, a notch of the avoidance groove is arranged towards the avoidance hole and communicated with the avoidance hole, and the avoidance groove is used for avoiding the magnetic piece; and/or the magnetic yoke is provided with a leakage hole, and the back cover is provided with isolation meshes which are correspondingly communicated with the leakage hole.
  8. 8. The sound generating unit according to any one of claims 1 to 5, further comprising a housing and an elastic support member, wherein the vibration system and the magnetic circuit system are respectively connected to both ends of the housing, the outer periphery of the diaphragm is connected to the housing, one end of the elastic support member is connected to the housing, and the other end of the elastic support member is connected to the voice coil.
  9. 9. The sound generating unit according to claim 8, wherein the elastic support member includes at least two centering pieces, each of the centering pieces includes a fixing portion, a mounting portion, and a spring arm portion connecting the fixing portion and the mounting portion, the mounting portion is connected to the housing, and the fixing portion is connected to the voice coil.
  10. 10. The sound-producing unit according to any one of claims 1 to 5, wherein the center magnetic circuit includes a center magnet and a center magnetically permeable plate provided on a side of the center magnet facing the diaphragm, the side magnetic circuit includes a side magnet and a side magnetically permeable plate provided on a side of the side magnet facing the diaphragm, the center magnet and the side magnet are magnetized in a direction of vibration of the diaphragm and are opposite in magnetization direction, and the magnetic gap is formed between the center magnetically permeable plate and the side magnetically permeable plate.
  11. 11. A sound module comprising a housing and a sound monomer according to any one of claims 1 to 10, the sound monomer being disposed within the housing.

Description

Sounding monomer and sounding module Technical Field The utility model relates to the technical field of acoustic energy conversion, in particular to a sounding monomer and a sounding module. Background The development of thin intelligent products, the limited internal space creates a very big challenge to the acoustic performance of the loudspeaker, if the size of the loudspeaker is thinned, the performance of the loudspeaker is weakened, because the traditional means for improving the performance of the loudspeaker generally increases the volume of the magnet, so that better performance is obtained, but the size of the loudspeaker is increased due to the adoption of a large-volume magnet, so that the size requirement cannot be met by the loudspeaker, but if the size of the loudspeaker is reduced, the space inside the loudspeaker is reduced together, namely the space for accommodating the magnet is possibly reduced, only the magnet with smaller volume can be used under the condition of insufficient space, but the performance of the loudspeaker cannot meet the requirement of the whole machine even due to the reduction of the volume of the magnet. Disclosure of utility model The utility model mainly aims to provide a sounding monomer and a sounding module, which aim at solving the problem of improving the performance of a loudspeaker. In order to achieve the above object, the present utility model provides a sounding monomer, which includes: The magnetic circuit system comprises a magnetic conducting yoke and a magnetic circuit unit arranged on the magnetic conducting yoke, wherein the magnetic circuit unit comprises a central magnetic circuit and a side magnetic circuit arranged on the periphery of the central magnetic circuit, and the central magnetic circuit and the side magnetic circuit are arranged at intervals and form a magnetic gap; The vibration system comprises a vibrating diaphragm, a voice coil and a magnetic piece arranged on the voice coil, wherein the voice coil is positioned in the magnetic gap, one side of the voice coil is connected with the vibrating diaphragm, the other side of the voice coil is connected with the magnetic piece, an avoidance hole for avoiding the magnetic piece is formed in the magnetic conduction yoke, the magnetic gap is communicated with the avoidance hole, and the magnetic piece can provide acting force opposite to the restoring force direction of the vibrating diaphragm for the voice coil. In an embodiment, the number of the magnetic pieces is multiple, the multiple magnetic pieces are arranged at intervals along the circumferential direction of the voice coil, and the avoidance holes are consistent with the number of the magnetic pieces and are arranged in one-to-one correspondence. In one embodiment, the shape of the relief hole is adapted to the shape of the magnetic member; or the magnetic yoke comprises a central magnetic yoke and an edge magnetic yoke, wherein the central magnetic yoke is spaced from the edge magnetic yoke and the avoiding hole is formed between the central magnetic yoke and the edge magnetic yoke. In an embodiment, the magnetic member includes an annular magnetic member, the magnetic yoke includes a central magnetic yoke and an edge magnetic yoke, the central magnetic yoke is connected with the central magnetic circuit, the edge magnetic yoke is connected with the edge magnetic circuit, and the central magnetic yoke is spaced from the edge magnetic yoke and forms the avoiding hole therebetween. In an embodiment, the magnetic member is made of a magnetic conductive material or the magnetic member is made of a permanent magnetic material. In an embodiment, the sounding unit further includes a rear cover, and a side of the magnetic yoke facing away from the diaphragm is disposed on the rear cover. In an embodiment, the rear cover protrudes towards a direction away from the vibrating diaphragm to form an avoidance groove, a notch of the avoidance groove is arranged towards the avoidance hole and communicated with the avoidance hole, and the avoidance groove is used for avoiding the magnetic piece; and/or the magnetic yoke is provided with a leakage hole, and the back cover is provided with isolation meshes which are correspondingly communicated with the leakage hole. In an embodiment, the sounding unit further comprises a housing and an elastic support, the vibration system and the magnetic circuit system are respectively connected to two ends of the housing, the outer periphery of the vibrating diaphragm is connected with the housing, one end of the elastic support is connected with the housing, and the other end of the elastic support is connected with the voice coil. In an embodiment, the elastic support member includes at least two centering support pieces, each of the centering support pieces includes a fixing portion, a mounting portion, and a spring arm portion connecting the fixing portion and the mounting portion, the mounting portion is