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CN-122027953-A - Bone and air integrated sounding device with coil driven elastic sheet to vibrate synchronously

CN122027953ACN 122027953 ACN122027953 ACN 122027953ACN-122027953-A

Abstract

The invention relates to the technical field of sound production devices, in particular to a bone and air integrated sound production device with a coil driving spring plate for synchronous vibration, which comprises a lower cover plate, an upper cover plate, a vibration spring plate, a magnetic circuit system, a driving coil and a power panel, the upper cover plate is covered on the lower cover plate to form a closed assembly cavity, the vibration spring plate, the magnetic circuit system, the driving coil and the power supply board are all arranged in the assembly cavity, and the magnetic circuit system and the vibration spring plate are integrated and fixedly connected to form an integrated vibration structure. This integrative sound generating mechanism of bone and air of synchronous vibration of coil drive shell fragment links firmly magnetic circuit and vibrations shell fragment integration as integrated vibrating structure, has eliminated the vibration transmission clearance that the components of a whole that can function independently connect brought, lets magnetic circuit's vibration energy synchronous complete transmission to vibrations shell fragment, has avoided the energy loss of transmission in-process of shaking, has promoted the energy transmission efficiency of bone and air conduction sound production, lets vibration signal transmission more stable simultaneously, has ensured the definition and the uniformity of sound quality of sound production, the sound production user demand of adaptation high-pitched sound effect.

Inventors

  • ZHENG XUEDONG

Assignees

  • 郑雪东

Dates

Publication Date
20260512
Application Date
20260316

Claims (9)

  1. 1. The bone and qi integrated sounding device with the coil driven elastic sheet for synchronous vibration comprises a lower cover plate (1), an upper cover plate (2), a vibration elastic sheet (3), a magnetic circuit system, a driving coil (5) and a power supply board (6), and is characterized in that the upper cover plate (2) is covered on the lower cover plate (1) to form a closed assembly cavity, the vibration elastic sheet (3), the magnetic circuit system, the driving coil (5) and the power supply board (6) are all arranged in the assembly cavity, the magnetic circuit system and the vibration elastic sheet (3) are integrated and fixedly connected to form an integrated vibration structure, the driving coil (5) is electrically connected with the power supply board (6), and an alternating magnetic field generated after the driving coil (5) is electrified interacts with an inherent magnetic field of the magnetic circuit system to drive the magnetic circuit system and the vibration elastic sheet (3) to synchronously reciprocate to realize bone and qi integrated conduction sounding; The power panel (6) is integrated with an adjustable capacitor (402), a frequency adjusting chip (403) and a magnetic field detecting sensor (404), the adjustable capacitor (402) is connected with the driving coil (5) in series, the magnetic field detecting sensor (404) is arranged between the magnetic circuit system and the driving coil (5), the magnetic field detecting sensor (404) and the adjustable capacitor (402) are electrically connected with the frequency adjusting chip (403), the magnetic field detecting sensor (404) detects the vibration frequency and the magnetic field intensity of the magnetic circuit system and transmits the vibration frequency and the magnetic field intensity to the frequency adjusting chip (403), and the frequency adjusting chip (403) adjusts the capacitance value of the adjustable capacitor (402) according to the detection signal, so that the current frequency of the driving coil (5) is changed, and the accurate adjustment of the vibration frequency is realized.
  2. 2. The bone and qi integrated sounding device synchronously vibrating by using the coil driving elastic sheet according to claim 1, wherein a buffer pad (101), an elastic support column (102) and a rigid support column (105) are arranged on the inner side of the lower cover plate (1), the buffer pad (101) is attached between the edge of the vibrating elastic sheet (3) and the lower cover plate (1), the elastic support column (102) and the rigid support column (105) are distributed between the bottom of the vibrating elastic sheet (3) and the lower cover plate (1) at intervals, two ends of the elastic support column (102) are respectively elastically abutted against the vibrating elastic sheet (3) and the lower cover plate (1), and a vibrating gap is reserved between the top end of the rigid support column (105) and the vibrating elastic sheet (3).
  3. 3. The bone and qi integrated sounding device synchronously vibrating by using the coil driven elastic sheet according to claim 2, wherein a rubber pad (103) is sleeved on the outer side of the elastic support column (102), a gasket (104) is embedded at the top end of the rigid support column (105), and the gasket (104) is made of a flexible wear-resistant material and is used for preventing the rigid support column (105) from hard collision with the vibrating elastic sheet (3).
  4. 4. The bone and air integrated sounding device for synchronously vibrating the coil-driven elastic sheet according to claim 1, wherein the magnetic circuit system comprises a central permanent magnet (4) and a circumferential permanent magnet ring (401) encircling the outer side of the central permanent magnet (4), magnetic poles of the central permanent magnet (4) and the circumferential permanent magnet ring (401) are alternately arranged to form uniform annular magnetic field distribution, the bottom of the magnetic circuit system is in gapless fit and fixation with the middle of the vibration elastic sheet (3), and the magnetic circuit system and the middle of the vibration elastic sheet are of a welded or high-strength adhesive composite connection structure.
  5. 5. The bone and qi integrated sounding device synchronously vibrating by using the coil driving spring plate according to claim 1, wherein a plurality of magnetic attraction bosses (107) are arranged on the inner side of the lower cover plate (1), magnetic attraction grooves (108) are correspondingly formed in the bottoms of the vibration spring plate (3), the magnetic circuit system, the driving coil (5) and the power supply plate (6), the magnetic attraction bosses (107) are matched with the magnetic attraction grooves (108), and permanent magnets with opposite attraction are arranged in the magnetic attraction bosses (107) and the magnetic attraction grooves (108), so that magnetic attraction positioning assembly of all parts and the lower cover plate (1) is realized.
  6. 6. The bone and air integrated sounding device synchronously vibrating by the coil driving spring plate according to claim 1, wherein the outer side of the lower cover plate (1) is provided with radiating fins (106), the radiating fins (106) are made of metal heat conducting materials, and the radiating fins (106) are in close fit heat conducting connection with the lower cover plate (1) and are used for guiding out and radiating working heat in the assembly cavity.
  7. 7. The bone and air integrated sounding device synchronously vibrating by the coil driving spring plate according to claim 1, wherein the vibrating spring plate (3) is of an elastic metal integrated stamping forming structure, preferably made of phosphor copper or beryllium copper, a vibrating area of the vibrating spring plate (3) is thickened, an antioxidant and wear-resistant coating is sprayed on the surface of the vibrating spring plate, the driving coil (5) is an air coil wound by an enamelled wire, the driving coil (5) is sleeved on the outer side of a magnetic circuit system, a preset magnetic gap is reserved between the driving coil and the air coil, and a wear-resistant magnetic gap gasket is arranged in the magnetic gap to prevent mechanical collision and wear in the movement process of the vibrating spring plate and the beryllium copper.
  8. 8. The bone and qi integrated sounding device for synchronously vibrating the coil driving spring plate according to claim 1, wherein the power panel (6) is a flexible circuit board, an overcurrent protection module and a voltage regulation module are further integrated on the flexible circuit board, the overcurrent protection module is electrically connected with the driving coil (5) and used for preventing the driving coil (5) from being burnt out due to overcurrent, and the voltage regulation module is used for converting external input voltage into rated working voltage of the driving coil (5) and adapting to different power supply scenes.
  9. 9. The bone and air integrated sounding device synchronously vibrating by the coil driving elastic sheet is characterized in that a sealing rubber ring is arranged at the covering position of the upper cover plate (2) and the lower cover plate (1), a vibrating through hole corresponding to the vibrating elastic sheet (3) is formed in the upper cover plate (2), a dustproof and breathable film is attached to the vibrating through hole, dust prevention and water prevention of the device are achieved, the lower cover plate (1) and the upper cover plate (2) are made of hard insulating materials, detachable buckle connection or screw fixed connection is achieved between the lower cover plate and the upper cover plate, and the device is convenient to disassemble, assemble and maintain.

Description

Bone and air integrated sounding device with coil driven elastic sheet to vibrate synchronously Technical Field The invention relates to the technical field of sound production devices, in particular to a bone and qi integrated sound production device with a coil driving spring plate to vibrate synchronously. Background Bone and gas conduction sounding device is widely applied to communication, hearing assistance, wearable intelligent equipment and other scenes in noisy environments by virtue of the characteristic of no need of air transmission, and becomes an important development direction in the sounding device field. In the existing bone-gas conduction sounding structure, frequency deviation is easily caused by influence of multiple factors in vibration transmission of a magnetic circuit component and a vibration elastic sheet, and a real-time frequency detection and adjustment mechanism is lacked, so that sounding frequency of the device is fixed and easily deviates, sounding frequency cannot be adjusted according to actual use requirements, meanwhile, the problem that sound quality is single in level and insufficient in definition can be caused due to instability of the vibration frequency, high-sound effect and multi-scene use requirements are difficult to adapt, and the problem becomes a core bottleneck for restricting performance improvement and application expansion of the bone-gas conduction sounding device. Disclosure of Invention The invention aims to provide a bone and qi integrated sounding device with a coil driving spring piece to synchronously vibrate, so as to solve the problems in the background technology. The bone and qi integrated sounding device comprises a lower cover plate, an upper cover plate, a vibration spring plate, a magnetic circuit system, a driving coil and a power supply plate, wherein the upper cover plate is covered on the lower cover plate to form a closed assembly cavity, the vibration spring plate, the magnetic circuit system, the driving coil and the power supply plate are all arranged in the assembly cavity, the magnetic circuit system and the vibration spring plate are integrated and fixedly connected to form an integrated vibrating structure, the driving coil is electrically connected with the power supply plate, and an alternating magnetic field generated after the driving coil is powered interacts with an inherent magnetic field of the magnetic circuit system to drive the magnetic circuit system and the vibration spring plate to vibrate in a reciprocating mode synchronously, so that bone and qi integrated conduction sounding is realized. The power panel is integrated with an adjustable capacitor, a frequency adjusting chip and a magnetic field detection sensor, the adjustable capacitor is connected with the driving coil in series, the magnetic field detection sensor is arranged between the magnetic circuit system and the driving coil, the magnetic field detection sensor and the adjustable capacitor are electrically connected with the frequency adjusting chip, the magnetic field detection sensor detects the vibration frequency and the magnetic field intensity of the magnetic circuit system and transmits the vibration frequency and the magnetic field intensity to the frequency adjusting chip, and the frequency adjusting chip adjusts the capacitance value of the adjustable capacitor according to detection signals, so that the current frequency of the driving coil is changed, and the accurate adjustment of the vibration frequency is realized. Preferably, the inside of lower apron is equipped with blotter, elastic support column and rigid support column, the blotter laminating is located between the edge of vibrations shell fragment and the lower apron, elastic support column and rigid support column interval distribution are between the bottom of vibrations shell fragment and lower apron, and elastic support column's both ends respectively with vibrations shell fragment, lower apron elastic abutment, leave the vibration clearance between rigid support column's top and the vibrations shell fragment. Preferably, the inside of lower apron is equipped with blotter, elastic support column and rigid support column, the blotter laminating is located between the edge of vibrations shell fragment and the lower apron, elastic support column and rigid support column interval distribution are between the bottom of vibrations shell fragment and lower apron, and elastic support column's both ends respectively with vibrations shell fragment, lower apron elastic abutment, leave the vibration clearance between rigid support column's top and the vibrations shell fragment. Preferably, the magnetic circuit system comprises a central permanent magnet and Zhou Xiangyong magnetic rings encircling the outer side of the central permanent magnet, wherein magnetic poles of the central permanent magnet and magnetic poles of the circumferential permanent magnet rings are alternately arranged t