一种头戴开放式转被动降噪式蓝牙耳机
By designing a Bluetooth headset that switches from open-back to passive noise cancellation, and utilizing a mesh toggle switch and a flexible structure to achieve passive noise cancellation, the problem of poor noise cancellation performance in open-back headphones is solved, providing a convenient solution for environmental awareness and noise cancellation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHANGYUAN ELECTRONICS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing open-back Bluetooth headphones have poor noise cancellation performance, especially in noisy environments where sound quality is easily affected by external noise. Furthermore, active noise cancellation technology increases cost and power consumption, making it difficult to balance environmental awareness and effective noise cancellation.
An over-ear open-back passive noise-canceling Bluetooth headset was designed. The mesh cover rotates inside the earcup via a mesh switch, and the holes are arranged alternately with the steel mesh of the ear shell to achieve passive noise cancellation. The use of springs and foam blocks ensures that the blocking effect is effective.
It achieves a passive noise reduction effect that is simple to operate and easy to use, ensuring effective noise reduction when needed, while maintaining environmental awareness and reducing device complexity and power consumption.
Smart Images
Figure CN224521159U_ABST
Abstract
Claims
1. A pair of open-back to passive noise-canceling Bluetooth headphones, comprising a headband (1), an adjustment frame (2), a sound driver (3), a connecting frame (4), earcups (5), an ear shell steel mesh (6), a mesh cover (7), and a mesh switch (8), characterized in that: The adjustment frame (2) is located at the bottom of the headband (1), the sound driver (3) is installed at the bottom of the adjustment frame (2), the connecting frame (4) is fixedly connected to the inner side of the sound driver (3), the earmuff (5) is fixedly connected to one end of the connecting frame (4), the ear shell steel mesh (6) is installed in the area between the sound driver (3) and the earmuff (5), the mesh cover (7) is installed on the inner side of the ear shell steel mesh (6) and located inside the earmuff (5), the mesh switch (8) is installed on one end of the outer side of the earmuff (5), and one end of the mesh switch (8) is located inside the earmuff (5) and fixedly connected to the mesh cover (7).
2. The open-fit, passively noise-reducing Bluetooth earphone of claim 1, wherein: The earmuff (5) includes an upper cover (501), a snap-fit bracket (502), a snap-fit groove (503), a lower cover (504), and a snap-fit block (505). The snap-fit bracket (502) is fixedly connected to the inside of the upper cover (501). The snap-fit groove (503) is opened inside the snap-fit bracket (502). The snap-fit block (505) is fixedly connected to the top inside the lower cover (504). The lower cover (504) is installed below the upper cover (501). The snap-fit block (505) is snap-fit connected to the snap-fit groove (503).
3. The open-fit, passively noise-reducing Bluetooth earphone of claim 1, wherein: The ear shell steel mesh (6) includes an ear mesh cover (601), a through hole (602), an annular plate (603), and an elastic block (604). The ear mesh cover (601) is installed at the bottom of the sound driver (3), and the other end of the ear mesh cover (601) is installed above the ear cover (5). The through hole (602) is opened inside the ear mesh cover (601). The annular plate (603) is fixedly connected to the top inside the ear mesh cover (601), and the elastic block (604) is fixedly connected to the inside of the annular plate (603).
4. The open-fit, passively noise-reducing Bluetooth earphone of claim 3, wherein: The elastic block (604) includes a block (610), a spring (611), and a sponge block (612). The block (610) is fixedly connected to the inside of the ear mesh cover (601), the spring (611) is fixedly connected to the inside of the block (610), and the sponge block (612) is fixedly connected to both sides of the spring (611).
5. The open-fit, passively noise-reducing Bluetooth headset of claim 2, wherein: There are three slots (503) and three corresponding blocks (505).
6. The open-fit, passively noise-reducing Bluetooth headset of claim 3, wherein: The structure of the mesh shield (7) is consistent with the position structure of the through hole (602) of the ear shell steel mesh (6).
7. The open-fit, passively noise-reducing Bluetooth headset of claim 1, wherein: The number of connecting frames (4) is three.