Head-mounted wired earphone with active noise reduction function

Abstract

The utility model belongs to the technical field of head-mounted wired earphones, and discloses a head-mounted wired earphone with an active noise reduction function, which comprises a rack, earphone main bodies are fixedly mounted at two ends of the rack, an auxiliary noise reduction assembly is arranged on the outer side of each earphone main body, and the auxiliary noise reduction assembly comprises a sound insulation cover arranged on the outer side of each earphone main body. An ear attaching part is installed on one side of the sound insulation cover, a sound absorption plate is fixedly installed in the sound insulation cover, an annular plate is fixedly connected to the position, located on one side of the sound absorption plate, in the sound insulation cover, a plurality of metal soft rods are annularly and fixedly connected to one side of the annular plate at equal intervals, and one end of each metal soft rod is fixedly connected with a spherical block. According to the utility model, through the arrangement of the auxiliary noise reduction assembly, when external noise is too large and active noise reduction is needed, the ear attaching parts can be completely attached to the face of a user by utilizing the extrusion of a plurality of spherical blocks from the relative positions in the ear attaching parts, so that gaps are avoided, the sound insulation and noise reduction effects are improved, and meanwhile, the comfort level is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wired head-mounted earphones, and particularly relates to a wired head-mounted earphone with an active noise reduction function. Background Art

[0002] Earphones are used to receive electrical signals emitted from a media player or receiver, and convert them into audible sound waves by using speakers close to the ears. Earphones can be separated from the media player and can be connected only by using a plug, enabling people to listen to the sound alone without disturbing others; they can also block out surrounding environmental sounds, which is very helpful for people using them in noisy environments such as recording studios, bars, journeys, and sports.

[0003] A Chinese patent discloses a wired head-mounted earphone with an active noise reduction function (authorization publication number CN216531750U), which includes a frame, an earphone body arranged inside the frame, a connecting rod fixedly connected to the outside of the earphone body, one end of the connecting rod far away from the earphone body penetrates through the frame and extends to the outside of the frame, a sound insulation cover is slidably connected to the surface of the connecting rod, the sound insulation cover is sleeved on the surface of the earphone body, a reflection layer is fixedly connected to the inner surface of the sound insulation cover, and a sound insulation layer is fixedly connected to the inner surface of the reflection layer;

[0004] Although it can block external noise by pushing the sound insulation cover to move inward until the inner side of the sound insulation cover contacts the user's head, due to the different facial shapes and body fat of each user, it is easy to have gaps at the contact position between the sound insulation cover and the user's head, and due to the material of the sound insulation cover, it is difficult for the user to have good comfort when using the sound insulation cover for noise reduction and sound insulation. Therefore, a wired head-mounted earphone with an active noise reduction function is proposed to solve the related problems. Content of the Utility Model

[0005] To solve the problems raised in the above background art, the utility model provides a wired head-mounted earphone with an active noise reduction function.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wired head-mounted earphone with an active noise reduction function, including a frame, both ends of the frame are fixedly installed with earphone bodies, and an auxiliary noise reduction component is arranged outside the earphone bodies;

[0007] The auxiliary noise reduction component includes a sound insulation cover arranged outside the earphone body, an attached ear part is installed on one side of the sound insulation cover, a sound absorption board is fixedly installed inside the sound insulation cover, a circular plate is fixedly connected to the side of the sound absorption board inside the sound insulation cover, a plurality of metal soft rods are fixedly connected to the side of the circular plate at equal intervals in a circular shape, one end of each of the plurality of metal soft rods is fixedly connected with a spherical block, and the outer surface of the spherical block is attached to the inner side of the attached ear part.

[0008] Preferably, two annular grooves are formed on one side of the sound insulation cover, and two annular bumps are fixedly connected to one side of the ear attachment part. The two annular bumps are respectively sleeved inside the two annular grooves.

[0009] Preferably, a sealing ring is fixedly connected to the inner side of the sound insulation cover, and the sealing ring is slidably sleeved on the outer side of the earphone body.

[0010] Preferably, an operation box is fixedly connected to one side of each of the two earphone bodies, and an adjustment switch is fixedly installed on the outer side of each of the two operation boxes.

[0011] Preferably, a storage battery is fixedly installed inside the operation box, and four micro electric push rods are fixedly installed equidistantly in a ring shape inside the operation box.

[0012] Preferably, the output ends of the four micro electric push rods all penetrate through the operation box and are fixedly connected to a connecting frame. One ends of the four connecting frames are all fixedly connected to one side of the sound insulation cover.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the setting of the auxiliary noise reduction component of the present utility model, when the external noise is too large and active noise reduction is required, the user can respectively control the operation of the four micro electric push rods through the adjustment switch to drive the four connecting frames to move. The movement of the four connecting frames drives the sound insulation cover to move on the outer side of the earphone body until the ear attachment part fits with the user's face. At this time, by using the extrusion of the multiple spherical blocks from the relative positions inside the ear attachment part, the ear attachment part can be made to fit on the user's face, so that the user's ear is completely covered inside the earphone body and the sound insulation cover, avoiding the appearance of gaps, improving the sound insulation and noise reduction effect better, and greatly improving the comfort at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is an exploded view of the earphone body and the auxiliary noise reduction component of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 is an enlarged schematic view of the structure at A in

[0018] Figure 4 is a schematic diagram of the structure of the ear attachment part of the present utility model;

[0019] Figure 5 is a sectional view of the operation box of the present utility model.

[0020] In the figure: 1, frame; 2, earphone main body; 3, sound insulation cover; 4, attached ear part; 5, operation box; 6, adjustment switch; 7, sound absorption board; 8, annular plate; 9, metal flexible rod; 10, spherical block; 11, sealing ring; 12, annular groove; 13, annular bump; 14, micro electric push rod; 15, connecting frame; 16, storage battery. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 5 shown, the present invention provides a wired headphone with active noise reduction function, including a frame 1. Both ends of the frame 1 are fixedly installed with earphone main bodies 2. The frame 1 and the two earphone main bodies 2 form a headphone. An auxiliary noise reduction component is arranged outside the earphone main body 2. The auxiliary noise reduction component includes a sound insulation cover 3 arranged outside the earphone main body 2. The material of the sound insulation cover 3 mainly includes a metal shell, a sound absorption material, a damping layer, a sound absorption filling layer and a covering layer, etc. Through the setting of the sound insulation cover 3, internal and external noises can be blocked. One side of the sound insulation cover 3 is installed with an attached ear part 4. The part of the attached ear part 4 connected to the sound insulation cover 3 has the same material as the frame 1, and the other half has the same material as the earphone main body 2. This method can effectively improve the comfort of the sound insulation cover 3 when it fits with the user's face during use. A sound absorption board 7 is fixedly installed inside the sound insulation cover 3. The setting of the sound absorption board 7 can further improve the sound insulation and noise reduction effect of the sound insulation cover 3. Inside the sound insulation cover 3 and on one side of the sound absorption board 7, there is a fixedly connected annular plate 8. One side of the annular plate 8 is fixedly connected with a plurality of metal flexible rods 9 at equal intervals in a ring shape. The number of the metal flexible rods 9 is not less than thirty, and the metal flexible rods 9 can be bent in multiple directions when stressed. One end of each of the plurality of metal flexible rods 9 is fixedly connected with a spherical block 10. The spherical block 10 is made of soft plastic material, and the outer surface of the spherical block 10 fits with the inner side of the attached ear part 4. When using the sound insulation cover 3 to actively reduce the noise of the earphone main body 2, the user adjusts the position of the sound insulation cover 3 outside the earphone main body 2, and then uses the extrusion of the plurality of spherical blocks 10 from the relative positions inside the attached ear part 4, so that the attached ear part 4 can be attached to the user's face, so that the user's ear is completely covered inside the sound insulation cover 3, so as to achieve the best sound insulation and noise reduction effect.

[0023] On one side of the sound insulation cover 3, two annular grooves 1 are provided. The annular groove 12 is a T-shaped groove. On one side of the ear attachment part 4, two annular protrusions 13 are fixedly connected. The annular protrusions 13 are T-shaped blocks. The two annular protrusions 13 are respectively sleeved inside the two annular grooves 12. By means of the sleeving between the annular protrusions 13 and the annular grooves 12, the installation and fixation between the ear attachment part 4 and the sound insulation cover 3 are realized. A sealing ring 11 is fixedly connected to the inner side of the sound insulation cover 3. The sealing ring 11 is slidably sleeved on the outer side of the earphone main body 2. The setting of the sealing ring 11 can realize the complete closure between the sound insulation cover 3 and the earphone main body 2. This method can effectively reduce the infiltration of external noise.

[0024] On one side of each of the two earphone main bodies 2, an operation box 5 is fixedly connected. On the outer side of each of the two operation boxes 5, an adjustment switch 6 is fixedly installed. Inside the operation box 5, a storage battery 16 is fixedly installed. The adjustment switch 6 is electrically connected to the storage battery 16 through an external power cord. And inside the operation box 5, four micro electric push rods 14 are fixedly installed at equal intervals in a ring shape. The micro electric push rods 14 are electrically connected to the storage battery 16 through an external power cord. The output ends of the four micro electric push rods 14 all penetrate through the operation box 5 and are fixedly connected to a connecting frame 15. One end of each of the four connecting frames 15 is fixedly connected to one side of the sound insulation cover 3. By adjusting the switch 6, the operation of the four micro electric push rods 14 inside the operation box 5 is realized. Then, under the synchronous operation of the four micro electric push rods 14, the lateral movement of the sound insulation cover 3 outside the earphone main body 2 is realized.

[0025] The working principle and process of the present utility model

[0026] When in use, the user can wear the earphone main body 2 on the head through the rack 1, and the two earphone main bodies 2 respectively cover the two ears. When the external noise is too loud and active noise reduction is required, the user can respectively control the operation of the four micro electric push rods 14 through the adjustment switch 6. The four micro electric push rods 14 operate simultaneously to drive the four connecting frames 15 to move. The four connecting frames 15 move to drive the sound insulation cover 3 to move outside the earphone main body 2 until the ear attachment part 4 fits against the user's face. At this time, by means of the extrusion of the multiple spherical blocks 10 from the relative positions inside the ear attachment part 4, the ear attachment part 4 can be made to fit against the user's face, so that the user's ears are completely covered inside the earphone main body 2 and the sound insulation cover 3, thereby achieving the best sound insulation and noise reduction effect.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wired headphone with active noise reduction function, characterized in that: It includes a frame (1), and earphone bodies (2) are fixedly installed at both ends of the frame (1). An auxiliary noise reduction component is arranged on the outer side of the earphone bodies (2). The auxiliary noise reduction component includes a sound insulation cover (3) arranged on the outer side of the earphone body (2). An attached ear part (4) is installed on one side of the sound insulation cover (3). A sound absorption board (7) is fixedly installed inside the sound insulation cover (3). A circular plate (8) is fixedly connected to the inner side of the sound insulation cover (3) and on one side of the sound absorption board (7). A plurality of metal soft rods (9) are fixedly connected to one side of the circular plate (8) at equal intervals in a ring shape. One ends of the plurality of metal soft rods (9) are fixedly connected to spherical blocks (10), and the outer surface of the spherical block (10) is in contact with the inner side of the attached ear part (4).

2. The wired headphone with active noise reduction function according to claim 1, wherein: Two circular grooves (12) are formed on one side of the sound insulation cover (3). Two circular convex blocks (13) are fixedly connected to one side of the attached ear part (4), and the two circular convex blocks (13) are respectively sleeved inside the two circular grooves (12).

3. The wired headphone with active noise reduction function according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the inner side of the sound insulation cover (3), and the sealing ring (11) is slidably sleeved on the outer side of the earphone body (2).

4. The wired headphone with active noise reduction function according to claim 1, characterized in that: Operation boxes (5) are fixedly connected to one side of the two earphone bodies (2), and adjustment switches (6) are fixedly installed on the outer sides of the two operation boxes (5).

5. The wired headphone with active noise reduction function according to claim 4, wherein: A storage battery (16) is fixedly installed inside the operation box (5), and four micro electric push rods (14) are fixedly installed inside the operation box (5) at equal intervals in a ring shape.

6. The wired headphone with active noise reduction function according to claim 5, wherein: Output ends of the four micro electric push rods (14) all penetrate through the operation box (5) and are fixedly connected to a connecting frame (15). One ends of the four connecting frames (15) are fixedly connected to one side of the sound insulation cover (3).

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