A structure for improving consistency and stability of ANC noise reduction

Abstract

The utility model relates to earphone noise reduction technical field, specifically speaking is a kind of structure of improving ANC noise reduction consistency stability, including earphone, microphone is installed in earphone interior, noise reduction mechanism is installed in earphone interior, and noise reduction mechanism includes plastic cover, plastic cover is installed in earphone interior, plastic cover top is equipped with the slot, microphone one end is engaged with the slot inside, and it is equipped with the sound hole on plastic cover, and sound hole bottom extends to the inside of slot;In earphone interior, microphone is installed by plastic cover cooperation, it is beneficial to the effect of shock attenuation and noise reduction, and because plastic cover size can control, not easy to be deformed, beneficial to assembly, and noise reduction effect is enhanced.

Description

Technical Field

[0001] This utility model relates to a noise reduction structure, specifically a structure that improves the consistency and stability of ANC noise reduction, belonging to the field of headphone noise reduction technology. Background Technology

[0002] In the field of headphone noise cancellation technology, active noise cancellation (ANC) is widely used because it can effectively cancel low-frequency noise in the environment and significantly improve the user's listening experience. Its core principle is to collect ambient noise through a microphone, process it through a chip to generate a cancellation signal with the opposite phase to the noise, and then release it through a speaker to achieve the noise cancellation effect.

[0003] However, most existing headphones use silicone ear tips for noise cancellation. However, the size of silicone is uncontrollable and it is easy to deform, which makes subsequent installation very cumbersome, thereby reducing production efficiency and resulting in poor noise cancellation effect.

[0004] Therefore, there is an urgent need for a noise reduction structure that is easy to install and has a controllable and stable size to solve the above-mentioned problems in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a structure that improves the consistency and stability of ANC noise reduction in order to solve the above problems. The microphone is installed inside the earphone with a plastic sleeve, which is beneficial for shock absorption and noise reduction. In addition, because the size of the plastic sleeve can be controlled, it is not easy to deform, which facilitates assembly and enhances the noise reduction effect.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a structure for improving the consistency and stability of ANC noise reduction, including an earphone, a microphone installed inside the earphone, a noise reduction mechanism installed inside the earphone, the noise reduction mechanism including a plastic sleeve, a slot provided at the top of the plastic sleeve, one end of the microphone engaging with the inside of the slot, a sound receiving hole provided on the plastic sleeve, and the bottom of the sound receiving hole extending into the inside of the slot.

[0007] Preferably, the earphone has a mounting groove on the inner side of its top, and the plastic sleeve engages with the inside of the mounting groove.

[0008] Preferably, the mounting groove and the plastic sleeve have a trapezoidal structure, and the thickness of one end of the plastic sleeve is greater than the thickness of one end of the mounting groove.

[0009] Preferably, a plurality of protrusions are installed on the inner sidewall of one end of the mounting groove, and the protrusions abut against the outer sidewall of one end of the plastic sleeve.

[0010] Preferably, the outer wall of one end of the plastic sleeve is provided with a groove, the protrusion abuts against the inside of the groove, and both the protrusion and the groove are hemispherical structures.

[0011] Preferably, the top side of the earphone has a through hole, which is concentric with the sound hole on the plastic sleeve.

[0012] Preferably, the card slot has an "L" shaped structure, and the microphone cable extends to the outer side of one end of the bottom of the card slot.

[0013] Preferably, a plurality of positioning blocks are installed on the inner sidewall of the slot, and the outer sidewall of the microphone abuts against the positioning blocks.

[0014] The beneficial effects of this utility model are as follows: the installation of the microphone facilitates the collection of sound and the conversion of sound into electrical signals for transmission and storage. The installation of the plastic sleeve, in cooperation with the slot, allows one end of the microphone to engage with the inside of the slot, making the microphone tightly wrapped, which helps to reduce vibration and noise. Because the size of the plastic sleeve can be controlled, it is not easily deformed, which facilitates assembly and enhances the noise reduction effect. Furthermore, the opening of the sound-receiving hole allows sound to enter the inside of the plastic sleeve better, enabling the microphone to perform recording work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the microphone and the earphone of this utility model; Figure 3 This is a schematic diagram of the connection structure between the protrusion, the mounting groove, and the earphone in this utility model. Figure 4 This is a schematic diagram of the connection structure between the microphone and the plastic sleeve of this utility model; Figure 5 This is a schematic diagram of the connection structure between the positioning block and the plastic sleeve of this utility model.

[0016] In the diagram: 1. Earphone; 2. Microphone; 3. Noise reduction mechanism; 301. Mounting slot; 302. Plastic sleeve; 303. Through hole; 304. Sound hole; 305. Slot; 306. Positioning block; 307. Protrusion; 308. Groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-5As shown, a structure for improving the consistency and stability of ANC noise reduction includes an earphone 1, a microphone 2 installed inside the earphone 1, and a noise reduction mechanism 3 installed inside the earphone 1. The noise reduction mechanism 3 includes a plastic sleeve 302. The plastic sleeve 302 is installed inside the earphone 1. The top of the plastic sleeve 302 is provided with a slot 305. One end of the microphone 2 is engaged with the inside of the slot 305. The plastic sleeve 302 is provided with a sound receiving hole 304. The bottom of the sound receiving hole 304 extends into the inside of the slot 305.

[0019] As a technical optimization of this utility model, the inner side of the top of the earphone 1 is provided with an installation groove 301, and the plastic sleeve 302 is engaged with the inside of the installation groove 301. The opening of the installation groove 301 facilitates the engagement of the plastic sleeve 302, so that the plastic sleeve 302 is stably installed inside the earphone 1.

[0020] As a technical optimization of this utility model, the mounting groove 301 and the plastic sleeve 302 are trapezoidal structures. The thickness of one end of the plastic sleeve 302 is greater than the thickness of one end of the mounting groove 301, which facilitates the insertion of the plastic sleeve 302 into the mounting groove 301. The plastic sleeve 302 is tightly engaged with the inside of the mounting groove 301 and will not fall off.

[0021] As a technical optimization of this utility model, a plurality of protrusions 307 are installed on the inner side wall of one end of the mounting groove 301. The protrusions 307 abut against the outer side wall of one end of the plastic sleeve 302. Through the connection of the protrusions 307, it is beneficial to abut against the side wall of the plastic sleeve 302, thereby playing an anti-slip role.

[0022] As a technical optimization of this utility model, a groove 308 is provided on the outer side wall of one end of the plastic sleeve 302, and the protrusion 307 abuts against the inside of the groove 308. Both the protrusion 307 and the groove 308 are hemispherical structures. By opening the groove 308, it is beneficial for the protrusion 307 to abut against the inside of the groove 308, so that the limiting effect of the plastic sleeve 302 is better.

[0023] As a technical optimization of this utility model, the top side of the earphone 1 is provided with a through hole 303. The through hole 303 is concentric with the sound receiving hole 304 on the plastic sleeve 302. By opening the through hole 303, external sound can enter the sound receiving hole 304 through the through hole 303, so as to improve the recording effect.

[0024] As a technical optimization of this utility model, the slot 305 has an "L" shaped structure, and the microphone 2 ribbon cable extends to the outer side of the bottom end of the slot 305, which is conducive to the microphone 2 ribbon cable being led out through the bottom end of the slot 305, so that the bottom of the plastic sleeve 302 will not squeeze or wear the ribbon cable.

[0025] As a technical optimization of this utility model, multiple positioning blocks 306 are installed on the inner side wall of the slot 305. The outer side wall of the microphone 2 abuts against the positioning blocks 306. The installation of multiple positioning blocks 306 facilitates the positioning of the microphone 2 and prevents the microphone 2 from becoming loose.

[0026] In use, this invention first engages one end of the microphone 2 with the slot 305 at the bottom of the plastic sleeve 302 and is positioned by multiple positioning blocks 306. Then, the microphone 2 cable is routed out along one end of the slot 305. Next, the plastic sleeve 302 is inserted into the mounting groove 301, and multiple protrusions 307 engage with the grooves 308 on the plastic sleeve 302, which limit and prevent slippage of the plastic sleeve 302. Because the size of the plastic sleeve 302 can be controlled, it is not easily deformed and is easy to assemble. The plastic sleeve 302 tightly wraps the microphone 2, which has the effect of shock absorption and noise reduction. Through the cooperation of the through hole 303 and the sound receiving hole 304, external sound is better introduced into the microphone 2 for recognition.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for improving the consistency and stability of ANC noise reduction, comprising an earphone (1), wherein a microphone (2) is installed inside the earphone (1), characterized in that: The earphone (1) is equipped with a noise reduction mechanism (3), which includes a plastic sleeve (302). The earphone (1) is equipped with a plastic sleeve (302), and the top of the plastic sleeve (302) is provided with a slot (305). One end of the microphone (2) is engaged with the inside of the slot (305). The plastic sleeve (302) is provided with a sound receiving hole (304), and the bottom of the sound receiving hole (304) extends into the inside of the slot (305).

2. The structure for improving the consistency and stability of ANC noise reduction according to claim 1, characterized in that: The earphone (1) has an installation groove (301) on the inner side of its top, and the plastic sleeve (302) engages with the inside of the installation groove (301).

3. The structure for improving the consistency and stability of ANC noise reduction according to claim 2, characterized in that: The mounting groove (301) and the plastic sleeve (302) are trapezoidal structures, and the thickness of one end of the plastic sleeve (302) is greater than the thickness of one end of the mounting groove (301).

4. The structure for improving the consistency and stability of ANC noise reduction according to claim 3, characterized in that: Multiple protrusions (307) are installed on the inner sidewall of one end of the mounting groove (301), and the protrusions (307) abut against the outer sidewall of one end of the plastic sleeve (302).

5. The structure for improving the consistency and stability of ANC noise reduction according to claim 4, characterized in that: The outer wall of one end of the plastic sleeve (302) is provided with a groove (308), and the protrusion (307) abuts against the inside of the groove (308). Both the protrusion (307) and the groove (308) are hemispherical structures.

6. The structure for improving the consistency and stability of ANC noise reduction according to claim 1, characterized in that: The earphone (1) has a through hole (303) on its top side, and the through hole (303) is concentric with the sound hole (304) on the plastic sleeve (302).

7. The structure for improving the consistency and stability of ANC noise reduction according to claim 1, characterized in that: The card slot (305) has an "L" shaped structure, and the microphone (2) cable extends to the outside of one end of the bottom of the card slot (305).

8. The structure for improving the consistency and stability of ANC noise reduction according to claim 1, characterized in that: Multiple positioning blocks (306) are installed on the inner wall of the slot (305), and the outer wall of the microphone (2) abuts against the positioning blocks (306).

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