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CN-224218486-U - Moving iron loudspeaker and earphone

CN224218486UCN 224218486 UCN224218486 UCN 224218486UCN-224218486-U

Abstract

The utility model discloses a moving iron loudspeaker and an earphone, wherein the moving iron loudspeaker comprises a substrate, a first voice coil, a second voice coil, a vibrating diaphragm and a moving rod, the first voice coil and the second voice coil are arranged on the substrate at intervals along a first direction, the vibrating diaphragm is arranged at intervals along a second direction and the second voice coil, the second direction intersects the first direction, the moving rod comprises a movable part, a supporting part and a connecting part, the connecting part is connected with the vibrating diaphragm, the movable part movably penetrates the second voice coil along the first direction, the supporting part is connected between the movable part and the connecting part, and the first voice coil and the second voice coil are used for driving the movable part to move along the first direction and driving the supporting part to move under the action of a magnetic field so as to drive the vibrating diaphragm to vibrate. According to the moving iron horn, the arc-shaped part and the supporting part are driven to deform through the movement of the movable part in the first direction, so that the vibrating membrane vibrates in the second direction, the vibrating area can be adjusted according to the moving range of the movable part, the universality of the moving iron horn is improved, and the moving iron horn is applicable to various earphones.

Inventors

  • GONG WEIYONG
  • WU HAIQUAN
  • DOU LICAI
  • ZHANG BO
  • GUO SHIWEN
  • CHI XIN

Assignees

  • 深圳市冠旭电子股份有限公司

Dates

Publication Date
20260508
Application Date
20241219

Claims (10)

  1. 1. Moving iron loudspeaker, its characterized in that includes: A substrate (100); a first voice coil (110) and a second voice coil (120) which are arranged on the substrate (100) at intervals along a first direction (150); A diaphragm (130) disposed at an interval from the second voice coil (120) along a second direction (160), the second direction (160) intersecting the first direction (150); A movable rod (140), wherein the movable rod (140) comprises a movable part (141), a supporting part (142) and a connecting part (143), the connecting part (143) is connected to the vibrating membrane (130), the movable part (141) is movably penetrated in the second voice coil (120) along a first direction (150), and the supporting part (142) is connected between the movable part (141) and the connecting part (143); The first voice coil (110) and the second voice coil (120) are used for driving the movable part (141) to move along the first direction (150) under the action of a magnetic field and driving the supporting part (142) to move so as to drive the vibrating membrane (130) to vibrate.
  2. 2. The moving iron horn of claim 1, wherein the moving iron horn comprises: -two of said first voice coils (110) and two of said second voice coils (120), the two of said second voice coils (120) being arranged between the two of said first voice coils (110); The movable rod (140) comprises two movable parts (141) and two supporting parts (142), two ends of the connecting part (143) are respectively connected with one supporting part (142), each movable part (141) is respectively penetrated in one second voice coil (120), and the two supporting parts (142) are respectively connected with one movable part (141).
  3. 3. The moving iron horn according to claim 1, characterized in that the moving rod (140) comprises two of the support portions (142); The two ends of the connecting part (143) are respectively connected with one supporting part (142), one supporting part (142) is connected with the movable part (141), and the other supporting part (142) is connected with the substrate (100).
  4. 4. The moving iron horn according to claim 2, wherein the thickness of the supporting portion (142) is greater than the thickness of the connecting portion (143), and/or, The thickness of the movable part (141) is greater than the thickness of the connecting part (143).
  5. 5. The moving iron horn according to claim 2, wherein the connection portion (143) has an arc-shaped structure, wherein a tip of the connection portion (143) is connected to the diaphragm (130).
  6. 6. The moving iron horn according to claim 1, characterized in that the movable part (141) is of a straight rod type structure.
  7. 7. A moving iron horn according to claim 2, characterized in that the two support parts (142) have an angle D between them, the angle D changing with the movement of the movable part (141).
  8. 8. The moving iron horn according to claim 1, characterized in that the first voice coil (110) comprises a first receiving slot (111) penetrating the first voice coil (110) in a first direction (150), a magnetically permeable member (112) being arranged in the first receiving slot (111), the magnetically permeable member (112) extending in the first direction (150); The second voice coil (120) comprises a second accommodating groove (121) penetrating through the second voice coil (120) along a first direction (150), magnetic fluid (122) is arranged in the second accommodating groove (121), the movable part (141) is inserted into the second accommodating groove (121), and the magnetic fluid (122) is arranged around the movable part (141).
  9. 9. The moving iron horn according to claim 8, wherein the magnetic fluid (122) is wrapped around the outer peripheral side of the movable portion (141), or, The magnetic fluid (122) comprises a first magnetic fluid (123) and a second magnetic fluid (124) which are distributed on two sides of the movable part (141) along a second direction (160).
  10. 10. Earphone, characterized in that includes: a moving iron horn according to any one of the preceding claims; and the controller is used for transmitting signals to the moving iron horn.

Description

Moving iron loudspeaker and earphone Technical Field The utility model relates to the technical field of horns, in particular to a moving iron horn and an earphone. Background In the related technology, along with the progress of technology and the continuous improvement of living standard of people, the popularity of electronic products is higher and higher, and the requirements of consumers on the electronic products are also higher and higher, so that the earphone is widely applied to the daily life and work of people at present. In a moving iron loudspeaker of the related art, a variable current flows to a magnet to enable the magnet to be changed into an electromagnet, the electromagnet is enabled to move continuously and back and forth in a stressed manner in a magnetic field through the continuous change of the current direction to drive a sound membrane to vibrate and sound back and forth, so that the moving iron loudspeaker is required to be provided with a magnet to drive the sound membrane to vibrate, the occupied space is large, the amplitude area is difficult to adjust in a mode of driving the sound membrane to vibrate by the magnet, and the universality is poor. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the moving iron loudspeaker which can be suitable for various earphone devices and has strong universality. The utility model also provides an earphone with the moving iron loudspeaker. The moving iron loudspeaker comprises a base plate, a first voice coil, a second voice coil, a vibrating diaphragm and a moving rod, wherein the first voice coil and the second voice coil are arranged on the base plate at intervals along a first direction, the vibrating diaphragm is arranged with the second voice coil at intervals along a second direction, the second direction intersects with the first direction, the moving rod comprises a movable part, a supporting part and a connecting part, the connecting part is connected with the vibrating diaphragm, the movable part movably penetrates through the second voice coil along the first direction, and the supporting part is connected between the movable part and the connecting part, and the first voice coil and the second voice coil are used for driving the movable part to move along the first direction and driving the supporting part to move under the action of a magnetic field so as to drive the vibrating diaphragm to vibrate. The moving iron horn according to the embodiment of the utility model has the advantages that at least magnetic fields are generated when current passes through the first voice coil and the second voice coil, so that different magnetic poles (a south magnetic pole S and a north magnetic pole N) are respectively generated at two sides of the first voice coil, different magnetic poles (the south magnetic pole S and the north magnetic pole N) are respectively generated at two sides of the moving rod in the second voice coil by the moving part of the moving rod, the moving part is driven to move in the first direction by magnetism, the supporting part and the connecting part are deformed when the moving part moves in the first direction, the vibrating diaphragm is vibrated in the second direction for sounding, the mode that the magnet drives the vibrating diaphragm to vibrate is omitted, the space occupied by the moving iron horn is reduced, the connecting part and the supporting part are driven to deform in the second direction by the moving part, the vibrating area can be adjusted according to the moving range of the moving part, the usability of the moving iron horn is improved, the moving iron horn is applicable to various headphones, the vibrating diaphragm is driven by the moving rod, the vibrating diaphragm is driven to sound, the vibrating diaphragm is free from vibrating, and the vibrating diaphragm is small in size and low cost is realized. According to some embodiments of the utility model, the moving iron horn comprises two first voice coils and two second voice coils, wherein the two second voice coils are arranged between the two first voice coils, the moving rod comprises two movable parts and two supporting parts, and the two supporting parts are respectively connected with the movable parts and the connecting parts. According to some embodiments of the utility model, the movable rod comprises two supporting parts, two ends of the connecting part are respectively connected with the two supporting parts, one supporting part is connected with the movable part, and the other supporting part is connected with the base plate. According to some embodiments of the utility model, the thickness of the support portion is greater than the thickness of the connection portion, and/or the thickness of the movable portion is greater than the thickness of the connection portion. According to some embodiments of the