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DE-202023003134-U1 - Open-ear headphones

DE202023003134U1DE 202023003134 U1DE202023003134 U1DE 202023003134U1DE-202023003134-U1

Abstract

Open-ear headphones, characterized by the fact that they include: a sound-generating component that includes: a transducer comprising a diaphragm used to generate sound under the influence of an excitation signal; and a housing forming a chamber for receiving the transducer, wherein, in a worn state, a sound outlet opening is provided on an inner surface of the housing facing the ear of a user, which is used to direct sound generated at a front of the diaphragm out of the housing, wherein at least two pressure relief openings are provided in the other side walls of the housing, wherein the at least two pressure relief openings comprise a first pressure relief opening which is further away from the user's ear canal and a second pressure relief opening which is closer to the ear canal, and wherein the sound pressure at the first pressure relief opening is greater than the sound pressure at the second pressure relief opening, an ear hook, wherein the sound-generating part and the ear hook clamp an ear area corresponding to the cavum conchae of the auricle from a front and back side of the ear area.

Assignees

  • SHENZHEN SHOKZ CO LTD

Dates

Publication Date
20260513
Application Date
20230302
Priority Date
20221028

Claims (15)

  1. Open-ear headphones, characterized in that they comprise: a sound-generating part comprising: a transducer comprising a diaphragm used to generate sound under the influence of an excitation signal; and a housing forming a chamber for receiving the transducer, wherein, in a worn state, a sound outlet opening is provided on an inner surface of the housing facing the user's ear, which is used to direct sound generated at a front of the diaphragm out of the housing, wherein at least two pressure relief openings are provided in the other side walls of the housing, the at least two pressure relief openings comprising a first pressure relief opening located further away from the user's ear canal and a second pressure relief opening located closer to the ear canal, and wherein the sound pressure at the first pressure relief opening is greater than the sound pressure at the second pressure relief opening, an ear hook, wherein the sound-generating part and the ear hook jointly clamp an ear area corresponding to the cavum conchae of the auricle from an anterior and posterior side of the ear area.
  2. Open-ear headphones Claim 1 , characterized in that the sound-generating part has a connecting end that is connected to the ear hook and a free end that is not connected to the ear hook, wherein in the worn state at least a part of the free end projects into the cavum conchae, wherein there is a certain distance between an inner surface of the sound-generating part and the cavum conchae to allow a chamber-like structure to be formed between the sound-generating part and the cavum conchae, which communicates with the ear canal, wherein the sound outlet opening is located at least partially in the chamber-like structure, and wherein the first pressure relief opening and the second pressure relief opening are located outside the chamber-like structure.
  3. Open-ear headphones Claim 2 , characterized in that the free end is pressed in a thickness direction and held in the Cavum conchae, or that the free end rests against the Cavum conchae from the inside in a direction of a long axis and in a direction of a short axis.
  4. Open-ear headphones Claim 1 characterized in that the first pressure relief opening is provided on a top side of the housing and the second pressure relief opening is provided on a bottom side of the housing.
  5. Open-ear headphones Claim 1 , characterized in that the ratio of the area of the first pressure relief opening to the area of the second pressure relief opening is in the range of 1 to 5.
  6. Open-ear headphones Claim 5 , characterized in that both the first pressure relief opening and the second pressure relief opening are track-shaped, wherein the length of the first pressure relief opening is in the range of 4 mm to 8 mm, and wherein the length of the second pressure relief opening is in the range of 2 mm to 6 mm.
  7. Open-ear headphones Claim 5 , characterized in that the ratio of the dimension of the long axis to the dimension of the short axis of the first pressure relief opening is in the range of 1.3 to 8.
  8. Open-ear headphones Claim 5 , characterized in that the ratio of the dimension of the long axis to the dimension of the short axis of the second pressure relief opening is in the range of 1 to 6.
  9. Open-ear headphones Claim 2 , characterized in that in a certain frequency range the sound pressure amplitude at the first pressure relief opening and/or at the second pressure relief opening is close to the sound pressure amplitude at the sound outlet opening.
  10. Open-ear headphones Claim 9 , characterized in that at 3.5 kHz to 4.5 kHz the ratio of the sound pressure at the sound outlet opening to the sound pressure at the first pressure relief opening is in the range of 0.9 to 1.1 and the ratio of the sound pressure at the sound outlet opening to the sound pressure at the second pressure relief opening is in the range of 0.9 to 1.1.
  11. Open-ear headphones Claim 1 , characterized in that the membrane divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the membrane respectively, wherein the ratio of the resonance frequency of the front chamber to the resonance frequency of the rear chamber is in the range of 0.1 to 3, and wherein the ratio of the area of the sound outlet opening the total area of the first pressure relief opening and the second pressure relief opening is in the range of 0.1 to 0.99.
  12. Open-ear headphones Claim 1 , characterized in that the membrane divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the membrane respectively, wherein the ratio of the resonance frequency of the front chamber to the resonance frequency of the rear chamber is in the range of 0.5 to 10, and wherein the ratio of the area of the sound outlet opening to the total area of the first pressure relief opening and the second pressure relief opening is in the range of 1 to 10.
  13. Open-ear headphones Claim 1 , characterized in that a sound-absorbing mesh is provided at the sound outlet opening and at the at least two pressure relief openings, wherein the sound-absorbing mesh at the sound outlet opening and the sound-absorbing mesh at the at least two pressure relief openings have different specific acoustic impedances.
  14. Open-ear headphones Claim 13 , characterized in that the sound-absorbing mesh at the sound outlet opening is a steel mesh whose specific acoustic impedance is in the range of 0.1 MKS rayls to 10 MKS rayls.
  15. Open-ear headphones Claim 13 , characterized in that the thickness of the sound-absorbing mesh at the at least two pressure relief openings is in the range of 40 µm to 150 µm.

Description

CROSS-REFERENCE The present application claims priority over the Chinese application filed on 28 October 2022 with application number 202211336918.4, the Chinese application filed on 1 December 2022 with application number 202223239628.6 and the international application filed on 30 December 2022 with application number PCT/ CN 2022/144339 , the entire contents of which are incorporated herein by reference. TECHNICAL AREA The present application relates to the technical field of acoustics, in particular to an open-ear headphone. STATE OF THE ART With the development of acoustic output technology, headphones have become widely used in everyday life. They can work in conjunction with electronic devices such as mobile phones and computers to provide the user with a fantastic audio experience. Depending on how the user wears the headphones, they can generally be divided into categories such as headsets, ear hooks, in-ear headphones, and the like. The sound quality of headphones has a significant impact on the user's comfort. Therefore, it is necessary to provide an open-ear headphone to improve the output quality of the open-ear headphone. REVELATION OF THE INVENTION The embodiments described in this document provide an open-ear headphone that may include a sound-generating element. The sound-generating element may include: a transducer, which may include a diaphragm used to generate sound under the influence of an excitation signal; and a housing that forms a chamber for receiving the transducer, wherein, in a worn state, a sound outlet may be provided on an inner surface of the housing facing the user's ear, which is used to direct sound generated at a front of the diaphragm out of the housing and then transmit it to the ear canal, and wherein at least two pressure relief openings may be provided in the other side walls of the housing, the at least two pressure relief openings comprising a first pressure relief opening located further away from the ear canal and a second pressure relief opening located closer to the ear canal, and wherein the sound pressure at the first pressure relief opening may be greater than the sound pressure at the second pressure relief opening. In some embodiments, the first pressure relief opening and the second pressure relief opening can each be located on different side surfaces of the housing. In some embodiments, the ratio of the area of the first pressure relief opening to the area of the second pressure relief opening can be in the range of 1 to 5. In some embodiments, the ratio of the dimension of the long axis to the dimension of the short axis of the first pressure relief opening can be in the range of 1.3 to 8. In some embodiments, the ratio of the dimension of the long axis to the dimension of the short axis of the second pressure relief opening can be in the range of 1 to 6. In some embodiments, the ratio of the length to the width of a cross-section of the first pressure relief opening can be greater than the ratio of the length to the width of a cross-section of the second pressure relief opening. In some embodiments, the ratio of the length to the width of a cross-section of the first pressure relief opening can be smaller than the ratio of the length to the width of a cross-section of the second pressure relief opening. In some embodiments, the ratio of the length to the width of a cross-section of the first pressure relief opening can be equal to the ratio of the length to the width of a cross-section of the second pressure relief opening. In some embodiments, the ratio of the area of the sound outlet opening to the total area of the first pressure relief opening and the second pressure relief opening can be in the range of 0.1 to 0.99. In some embodiments, the membrane divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the membrane, respectively, with the ratio of the volume of the rear chamber being... The volume of the anterior chamber can range from 0.1 to 10. In some embodiments, the diaphragm divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the diaphragm, respectively, with the ratio of the resonant frequency of the front chamber to the resonant frequency of the rear chamber ranging from 0.1 to 5. In some embodiments, the ratio of the area of the sound outlet opening to the total area of the first pressure relief opening and the second pressure relief opening can be in the range of 1 to 10. In some embodiments, the membrane divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the membrane, respectively, with the ratio of the volume of the rear chamber to the volume of the front chamber ranging from 0.1 to 10. In some embodiments, the diaphragm divides the chamber into a front chamber and a rear chamber, corresponding to the front and rear sides of the diaphragm, respectively, with the ratio of the