Earphone and earphone assembly

Abstract

The application relates to the earphone technical field, and provides an earphone and an earphone assembly, which can solve the problem of poor active noise reduction performance of an earphone in the related art. The earphone comprises an earphone body, a front feedback microphone, a rear feedback microphone, a first loudspeaker and a second loudspeaker; the earphone body has an accommodating space in the inside, one side of the earphone body has a sound outlet, the sound outlet is communicated with the accommodating space, the front feedback microphone is arranged on the earphone body and is used for collecting sound outside the earphone body, and the rear feedback microphone is arranged in the sound outlet; the first loudspeaker and the second loudspeaker are both arranged in the accommodating space, and the first loudspeaker is located between the sound outlet and the second loudspeaker; the sound frequency of the first loudspeaker is in a first frequency band, the sound frequency of the second loudspeaker is in a second frequency band, the minimum frequency in the first frequency band is greater than the minimum frequency in the second frequency band, and the maximum frequency in the first frequency band is greater than the maximum frequency in the second frequency band. The application can be used on a wireless earphone.

Claims

1. An earphone, characterized in that, It includes the headphone body (1), a front feedback microphone (2), a rear feedback microphone (3), a first speaker (4), and a second speaker (5); The earphone body (1) has an internal accommodating space (10), and the earphone body (1) has a sound outlet (11) on one side. The sound outlet (11) is connected to the accommodating space (10). The front feedback microphone (2) is disposed on the earphone body (1) and is used to collect the sound outside the earphone body (1). The rear feedback microphone (3) is disposed inside the sound outlet (11). The first speaker (4) and the second speaker (5) are both disposed in the accommodating space (10), with the first speaker (4) located between the sound outlet (11) and the second speaker (5); the sound emission frequency of the first speaker (4) is in the first frequency band, and the sound emission frequency of the second speaker (5) is in the second frequency band, with the minimum frequency in the first frequency band being greater than the minimum frequency in the second frequency band, and the maximum frequency in the first frequency band being greater than the maximum frequency in the second frequency band; The accommodating space (10) is provided with a sound venting cavity (12), which is at least partially located between the first loudspeaker (4) and the second loudspeaker (5). The first loudspeaker (4) is provided with a sound venting hole (41), which is connected to the first inner cavity (40) of the first loudspeaker (4) and the sound venting cavity (12).

2. The earphone according to claim 1, characterized in that, The accommodating space (10) is provided with a sound cavity housing (13), which is at least partially located between the first loudspeaker (4) and the second loudspeaker (5). The sound leakage cavity (12) is the internal space of the sound cavity housing (13). The sound cavity housing (13) has a sound cavity opening (130), which is connected to the sound leakage hole (41).

3. The earphone according to claim 2, characterized in that, The sound cavity opening (130) is located on the side of the sound cavity housing (13) near the first speaker (4), and the sound leakage hole (41) is opposite to the sound cavity opening (130).

4. The earphone according to claim 3, characterized in that, The first loudspeaker (4) includes a first frame (42), a first base (43) disposed on the side of the first frame (42) near the sound cavity opening (130), a first diaphragm (44) disposed on the side of the first frame (42) away from the sound cavity opening (130), and a first magnetic circuit system (45). The first base (43), the first frame (42), and the first diaphragm (44) form the first inner cavity (40). The first magnetic circuit system (45) includes a first magnet assembly (451) disposed on the first base (43) and a first voice coil (452) connected to the first diaphragm (44). The first magnet assembly (451) has a first magnetic gap (4511) into which the first voice coil (452) extends. The sound leakage hole (41) passes through the first base (43) and the first magnet assembly (451). One end of the sound leakage hole (41) is connected to the sound cavity opening (130), and the other end of the sound leakage hole (41) is opposite to the first diaphragm (44).

5. The earphone according to claim 3, characterized in that, The first loudspeaker (4) includes a first frame (42), a first diaphragm (44) disposed on the side of the first frame (42) away from the sound cavity opening (130), a second diaphragm (46) disposed on the side of the first frame (42) close to the sound cavity opening (130), and a first magnetic circuit system (45). The first frame (42), the first diaphragm (44), and the second diaphragm (46) form the first inner cavity (40). The first frame (42) has a support wall (48) on its inner side. The first magnetic circuit system (45) includes a first voice coil (452) connected to the first diaphragm (44), a second voice coil (453) connected to the second diaphragm (46), and a first magnet assembly (451) disposed on the support wall (48). The first magnet assembly (451) has a first magnetic gap (4511) into which the first voice coil (452) extends, and a second magnetic gap (4512) into which the second voice coil (453) extends. The first magnet assembly (451) is provided with a first support member (471), which is connected to the central region of the second diaphragm (46). The sound leakage hole (41) is disposed on the first support member (471). One end of the sound leakage hole (41) is connected to the sound cavity opening (130) through the sound leakage channel (14), and the other end of the sound leakage hole (41) is connected to the first inner cavity (40).

6. The earphone according to claim 5, characterized in that, The first inner cavity (40) includes a first sub-cavity (401) and a second sub-cavity (402) located on opposite sides of the support wall (48), and the support wall (48) is provided with mounting holes (481); The first magnet assembly (451) includes a first central magnet (4513), a first annular magnet (4514) located on one side of the support wall (48), and a second annular magnet (4515) located on the other side of the support wall (48). The first central magnet (4513) is fixed to the mounting hole (481). A first part of the first central magnet (4513) is located in the first sub-cavity (401) and forms the first magnetic gap (4511) with the first annular magnet (4514). A second part of the first central magnet (4513) is located in the second sub-cavity (402) and forms the second magnetic gap (4512) with the second annular magnet (4515). The sound vent (41) is connected to the second sub-cavity (402), and the first central magnet (4513) is provided with a magnet through hole (4516), which connects the first sub-cavity (401) and the second sub-cavity (402).

7. The earphone according to any one of claims 2 to 6, characterized in that, The acoustic cavity housing (13) includes a first shell wall (131) and a shell side wall (133) disposed at the periphery of the first shell wall (131). The first shell wall (131) and the shell side wall (133) form the sound leakage cavity (12). The shell side wall (133) is connected to the first loudspeaker (4). The acoustic cavity opening (130) is located at one end of the shell side wall (133) near the first loudspeaker (4). Alternatively, the acoustic cavity housing (13) includes a first housing wall (131) disposed away from the first speaker (4), a second housing wall (132) disposed close to the first speaker (4), and a housing sidewall (133) connecting the first housing wall (131) and the second housing wall (132). The first housing wall (131), the second housing wall (132), and the housing sidewall (133) form the sound leakage cavity (12), and the acoustic cavity opening (130) is disposed on the second housing wall (132).

8. The earphone according to claim 2, characterized in that, The first loudspeaker (4) includes a first frame (42), a first base (43) disposed on the side of the first frame (42) near the sound cavity opening (130), and a first diaphragm (44) disposed on the side of the first frame (42) away from the sound cavity opening (130). The first base (43), the first frame (42), and the first diaphragm (44) form the first inner cavity (40). Alternatively, the first loudspeaker (4) includes a first frame (42), a first diaphragm (44) disposed on the side of the first frame (42) away from the sound cavity opening (130), and a second diaphragm (46) disposed on the side of the first frame (42) close to the sound cavity opening (130), wherein the first frame (42), the first diaphragm (44), and the second diaphragm (46) form the first inner cavity (40); The sound leakage hole (41) is disposed on the first frame (42), and the sound leakage hole (41) is connected to the sound cavity opening (130) through the sound leakage channel (14).

9. The headphones according to claim 8, characterized in that, The acoustic cavity housing (13) includes a first housing wall (131) disposed away from the first speaker (4), a second housing wall (132) disposed close to the first speaker (4), and a housing sidewall (133) connecting the first housing wall (131) and the second housing wall (132). The first housing wall (131), the second housing wall (132) and the housing sidewall (133) form the sound leakage cavity (12), and the acoustic cavity opening (130) is disposed on the housing sidewall (133).

10. The earphone according to any one of claims 2 to 9, characterized in that, The acoustic cavity housing (13) is provided with a connecting hole (134), which connects the sound leakage cavity (12) to the accommodating space (10) outside the acoustic cavity housing (13); Alternatively, the sound leakage cavity (12) is isolated from the accommodating space (10) outside the sound cavity housing (13).

11. An earphone assembly, characterized in that, Includes a housing (200) and an earphone (100) according to any one of claims 1 to 10, the housing (200) having a receiving slot (210) for placing the earphone (100).

Images