CN104811839A - Double-loudspeaker head-wearing earphone - Google Patents

Abstract

The present invention relates to the technical field of earphone equipment, and provides a double-speaker headphone, which includes a headwear and two earphone bodies respectively connected to two ends of the headwear, wherein the two earphone bodies each include a The earphone fixing bracket of the contact surface through which the sound passes, the first loudspeaker arranged on the earphone fixing bracket and the second loudspeaker arranged on the earphone fixing bracket and on the side away from the first loudspeaker from the contact surface; the first loudspeaker and the second loudspeaker The speakers are arranged in the same direction and the projections of the two on the contact surface are at least partially overlapped; the first speaker and the earphone fixing bracket are surrounded to form a first sound cavity, and the second speaker and the earphone fixing bracket are surrounded to form a second sound cavity , the first cavity and the second cavity are independent of each other. Compared with the prior art, the double-speaker headphone provided by the present invention has better layering and details of the sound quality, and can reproduce the original sound.

Description

Dual Speaker Headphones

technical field

The invention relates to the technical field of earphone equipment, in particular to a double-speaker earphone.

Background technique

Earphones are often used in MP3 players, mobile phones, personal digital assistants (PDAs) or notebook computers, etc., for personal independent listening, making earphones one of the indispensable important accessories of electronic products nowadays. With the continuous improvement of people's requirements for sound quality, the sound quality effect of earphones has been paid more and more attention.

At present, earphones in the prior art generally only have a loudspeaker installed in the casing, which can only emit a single frequency sound, and cannot simultaneously output high and low audio frequencies, and the stereoscopic effect of the sound is poor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a double-speaker headphone, which aims to solve the problem in the prior art that the stereoscopic effect of the existing headphones is poor.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a double-speaker headphone, comprising a headwear and two earphone bodies respectively connected to two ends of the headwear, wherein the two The earphone main bodies each include an earphone fixing bracket having a contact surface for passing sound out, a first speaker disposed on the earphone fixing bracket, and a first speaker disposed on the earphone fixing bracket and located away from the The second speaker on one side of the contact surface; the first speaker and the second speaker are arranged in the same direction and the projections of the two on the contact surface at least partially overlap; between the first speaker and the earphone fixing bracket A first sound cavity is formed by surrounding, and a second sound cavity is formed by surrounding between the second speaker and the earphone fixing bracket, and the first sound cavity and the second sound cavity are independent of each other. the

Further, the earphone fixing bracket includes a fixing plate, the contact surface is formed on the side of the fixing plate close to the human ear, and a supporting convex ring and an arc-shaped outer stop are formed on the other side surface of the fixing plate plate, the arc-shaped outer baffle is arranged on the outer periphery of the supporting convex ring and the height of the arc-shaped outer baffle is higher than the height of the supporting convex ring; the first loudspeaker is placed inside the supporting convex ring and fixed on the fixing plate through a speaker cover, the first sound cavity is formed between the bottom surface of the first speaker and the fixing plate; the second speaker is fixed on the arc outer baffle and the Between the speaker covers, the second sound cavity is formed between the bottom surface of the second speaker, the speaker cover, the arc-shaped outer baffle and the fixing plate.

Further, the speaker cover includes a cover part that is arranged above the first speaker, and the top surface of the cover part protrudes upwards to form a protrusion, and the protrusion is close to the arc-shaped outer baffle. One side has an installation surface, and the second loudspeaker is placed between the installation surface of the protrusion and the inner wall of the arc-shaped outer baffle.

Further, a first flange protrudes toward the direction of the arc-shaped outer baffle on the installation surface of the protrusion, and a second flange protrudes toward the direction of the protrusion on the inner wall of the arc-shaped outer baffle. The edge of the bottom surface of the second speaker abuts against the top surface of the first flange and the top surface of the second flange respectively.

Further, there is a predetermined angle between the first speaker and the fixing plate.

Further, the range of the predetermined included angle is between 10° and 30°.

Further, a slope is formed on the contact surface of the fixing plate corresponding to the first speaker, and the slope is arranged parallel to the bottom surface of the first speaker.

Further, the first speaker is a full-range speaker, and the second speaker is a subwoofer.

Further, the earphone main body further includes a low-pass filter for combining the audio of the first speaker and the second speaker and expanding the frequency bandwidth of the combined audio.

Further, a sealing ring is provided between the bottom surface of the horn cover and the top surface of the supporting convex ring.

Compared with the prior art, the double-speaker headphone provided by the present invention adopts a first loudspeaker and a second loudspeaker arranged in each earphone main body, and a first sound cavity is formed by enclosing the first loudspeaker and the earphone fixing bracket. , the second speaker and the earphone fixing bracket are surrounded to form a second sound cavity, and the first sound cavity and the second sound cavity are set independently of each other, so that through the combination of the first speaker and the second speaker's range The sound quality effect of a wider range can be obtained within the range of the sound range, and the layering and details of the sound quality are better, and the original sound can be reproduced.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a dual-speaker headphone provided by an embodiment of the present invention;

Fig. 2 is an exploded schematic diagram 1 of the earphone body provided by the embodiment of the present invention;

Fig. 3 is an exploded schematic diagram II of the earphone body provided by the embodiment of the present invention;

Fig. 4 is an enlarged view of part A in Fig. 3;

Fig. 5 is an exploded schematic diagram of the first speaker, the second speaker and the earphone fixing bracket provided by the embodiment of the present invention;

Fig. 6 is a schematic top view when the first speaker and the second speaker provided by the embodiment of the present invention are installed on the earphone fixing bracket;

Fig. 7 is a schematic front view of the first speaker and the second speaker provided by the embodiment of the present invention when they are installed on the earphone fixing bracket;

Fig. 8 is a schematic bottom view when the first speaker and the second speaker are installed on the earphone fixing bracket provided by the embodiment of the present invention;

Fig. 9 is a schematic cross-sectional view of plane I-I in Fig. 8 .

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific drawings.

As shown in Fig. 1 to Fig. 9, it is a preferred embodiment provided by the present invention.

The double-speaker headphone 100 provided in this embodiment includes a headwear 101 and two earphone main bodies 1 respectively connected to both ends of the headwear 101. Both earphone main bodies 1 include a contact for sound passing through The earphone fixing bracket 11 of the surface 1a, the first loudspeaker 12 arranged on the earphone fixing bracket 11, and the second loudspeaker 13 arranged on the earphone fixing bracket 11 and located on the side of the first loudspeaker 12 away from the contact surface 1a; the first loudspeaker 12 and the second speaker 13 are set in the same direction and the projections of the two on the contact surface 1a are at least partially overlapped; the first speaker 12 and the earphone fixing bracket 11 are surrounded to form a first sound cavity 1b, and the second speaker 13 is fixed to the earphone The brackets 11 surround and form a second sound chamber 1c, and the first sound chamber 1b and the second sound chamber 1c are independent of each other.

The above-mentioned dual-speaker headphone 100 adopts a first loudspeaker 12 and a second loudspeaker 13 arranged in each earphone main body 1, and the first sound cavity 1b is formed between the first loudspeaker 12 and the earphone fixing bracket 11, Enclosing between the second loudspeaker 13 and the earphone fixing bracket 11 forms the second sound chamber 1c, and the first sound chamber 1b and the second sound chamber 1c are set independently of each other. The combination of , in the audible range, can obtain a wider range of sound quality effects, and the layering and details of the sound quality are better, and the original sound can be reproduced.

For the convenience of description, the "left", "right", "upper" and "lower" referred to below are consistent with the left, right, up and down directions of the drawings themselves, but do not limit the structure of the present invention.

Referring to FIG. 1 , a double-speaker headphone 100 includes a length-adjustable headwear 101 and two earphone bodies 1 respectively connected to two ends of the headwear 101 .

As can be seen from Figures 2 and 3, each earphone main body 1 includes an earmuff assembly 14, an earphone fixing bracket 11, a first speaker 12, a second speaker 13, a speaker cover 15, a circuit assembly 16, an earcup cover 17 and Cup shell 18.

The first loudspeaker 12, the second loudspeaker 13 are moving coil loudspeakers, and the diameter is 40mm, because the vibrating membrane of moving coil loudspeaker can adopt very light weight, toughness is very big, the macromolecule film manufacture that rigidity is very good, can like this The axial recovery compliance of the vibration system is greatly increased, and the swing amplitude is greatly increased without excessive mechanical or magnetic nonlinear distortion. In this embodiment, the first speaker 12 is a full-range speaker, and the second speaker 13 is a subwoofer.

The circuit assembly 16, as can be seen from Fig. 2 and Fig. 3, the circuit assembly 16 includes a main board 161 fixedly installed in the earcup cover 17 and a low-pass filter 162 arranged on the main board 161, the low-pass filter 162 It is an LC second-order low-pass filter, and the first loudspeaker 12 and the second loudspeaker 13 are connected in parallel through the low-pass filter 162. The low-pass filter 162 can filter the middle and treble in the second loudspeaker 13, and the audio frequency after filtering Combined with the audio from the first speaker 12, the frequency bandwidth of the combined audio can be effectively extended to 10-30KHZ.

The earphone fixing bracket 11 is made of plastic, as can be seen from Fig. 2, Fig. 3, Fig. 5 to Fig. 9, it includes a roughly circular fixing plate 111, which is provided with a plurality of sound The sound hole 112 that passes through, the side of the fixed plate 111 close to the human ear forms a contact surface 1a for the sound to pass through, and a supporting convex ring 113 and an arc-shaped outer baffle are formed on the surface of the other side of the fixed plate 111 114. The supporting convex ring 113 is circular, and its inner diameter is slightly larger than the diameter of the first loudspeaker 12. The arc-shaped outer baffle 114 is roughly semicircular, and its two ends are tangent to the outer wall of the supporting convex ring 113. The arc-shaped outer baffle 114 is arranged on the outer periphery of the supporting convex ring 113 and the height of the arc-shaped outer baffle 114 is higher than that of the supporting convex ring 113 . The first speaker 12 is placed inside the supporting convex ring 113 , and a first sound cavity 1 b is formed between the bottom surface of the first speaker 12 and the fixing plate 111 . The second loudspeaker 13 is placed on the inner side of the arc-shaped outer baffle plate 114, and the second loudspeaker 13 is arranged in the same direction as the first loudspeaker 12. The projections of a loudspeaker 12 on the contact surface 1 a partially overlap (of course they can also completely overlap). The fixing plate 111 is positioned at the sound hole 112 on the outside of the supporting convex ring 113 and the arc-shaped outer baffle plate 114, and is pasted with a Y2 tuning paper, so that the Y2 tuning paper can pass through its own air permeability, To reduce treble burrs and boost a little bass to improve sound quality.

The horn cover 15 is used to compress and fix the first speaker 12 respectively. As can be seen from FIG. 5 , FIG. 6 , FIG. 7 and FIG. The cover part 151 of the horn cover 15 is fixedly connected with the fixing plate 111 by fixing screws, and compresses the first speaker 12 when the two are connected. In order to improve the sealing effect of the first sound chamber 1b, a sealing ring 19 is provided between the bottom surface of the horn cover 15 and the top surface of the supporting convex ring 113 . The top surface of the cover portion 151 protrudes upwards to form a bump 152. The side of the bump 152 near the arc-shaped outer baffle plate 114 has a mounting surface 15a. The second loudspeaker 13 is placed on the mounting surface 15a of the bump 152 and the arc-shaped between the inner walls of the outer baffle 114 . On the mounting surface 15a of the projection 152, a first flange 153 protrudes toward the direction of the arc-shaped outer baffle 114, and on the inner wall of the arc-shaped outer baffle 114, a second flange 115 protrudes toward the direction of the projection 152. The second speaker The edge of the bottom surface of 13 abuts against the top surface of the first flange 153 and the top surface of the second flange 115 respectively, between the bottom surface of the second speaker 13, the speaker cover 15, the arc-shaped outer baffle 114 and the fixing plate 111 A second sound chamber 1c is formed. An inner cavity 154 is formed inside the protrusion 152, and the inner cavity 154 communicates with the bottom opening of the horn cover 15, and a ventilation hole 155 communicated with the inner cavity 154 is provided on the top surface of the protrusion 152. On the top surface of the protrusion 152, a Y1-shaped tuning paper is pasted on the air hole 155 to further adjust the sound quality of the first speaker 12 to make the sound quality more sweet.

The earmuff assembly 14 includes sequentially connected annular sealing pieces 141, earmuff fixing covers 142 and earmuffs 143. The earmuffs 143 are made of leather or plastic, filled with soft sponge, and the earmuffs are fixed. The cover 142 is provided with a plurality of slots arranged at intervals around its circumference, and the fixing plate 111 is protruded with hooks that engage with the slots.

The earcup cover 17, referring to Fig. 2 to Fig. 4, is roughly disc-shaped, and has a cavity 171 for accommodating the first speaker 12, the second speaker 13, the circuit assembly 16 and the speaker cover 15, the earcup cover 17 is fixedly connected with the earphone fixing bracket 11 by screws. The ear cup cover 17 is provided with an angle adjustment structure 173 for adjusting the rotation angle of the ear cup cover 17. As can be seen from FIG. The cover 1731, the rotating and fixing cover 1731 is roughly arcuate and bent, the rotating and fixing cover 1731 is provided with a limiting opening 1732 on the side facing the bottom surface of the cavity 171, and an arc-shaped opening is provided on the bottom surface of the cavity 171 of the earcup cover 17. Through slot 172, on the outer surface of earcup cover 17, there is a resistance sheet cover plate 1734 fixedly connected by screws, on which resistance sheet cover plate 1734 is slidably provided with a rotation resistance sheet 1733 extending into the through slot 172 , by rotating the earcup cover 17, the rotation resistance piece 1733 slides on the resistance piece cover plate 1734, when the rotation resistance piece 1733 is inserted into the limiting opening 1732 of the rotation fixing cover 1731, its sliding is restricted and locked Rotation of the earcup cover 17. In this way, through the angle adjustment structure 173 , it can be rotated within a certain range, thereby adjusting the direction of the audio, so as to adjust a better sounding direction.

The cup shell 18 is cylindrical, sleeved on the outside of the ear cup cover 17 and connected with the ear cup cover 17 .

In order to better combine the first speaker 12 with the second speaker 13, there is a predetermined angle between the first speaker 12 and the fixing plate 111, and the range of the predetermined angle is between 10° and 30°. The first speaker 12 preferably 15 degrees inclined setting. In this way, the first speaker 12 and the second speaker 13 can be better combined to obtain a better combined sound effect. A slope 111 a is formed on the contact surface 1 a of the fixing plate 111 corresponding to the first speaker 12 , and the slope 111 a is parallel to the bottom surface of the first speaker 12 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention Inside.

Claims (10)

1. a double horn headphone, comprise the headset main body that head-wearing piece and two are connected to described head-wearing piece two ends, it is characterized in that: two described headset main body include there is the contact surface that passes for sound earphone fixed support, be arranged on the first loud speaker on described earphone fixed support and be arranged on described earphone fixed support and be positioned at second loud speaker of described first loud speaker away from the side of described contact surface; Described first loud speaker arrange in the same way with described second loud speaker and both on described contact surface to be projected to small part overlapping; Enclose formation first sound chamber between described first loud speaker and described earphone fixed support, between described second loud speaker and described earphone fixed support, enclose formation second sound chamber, described first sound chamber and described second sound chamber separate.

2. double horn headphone according to claim 1, it is characterized in that: described earphone fixed support comprises a fixed head, described fixed head forms described contact surface near the side of people's ear, the opposite side of described fixed head is formed with a support collar and an arc outer baffle on the surface, described arc outer baffle be arranged on the periphery of described support collar and the height of described arc outer baffle higher than the height of described support collar; Described first loud speaker to be placed inside described support collar and is fixed on described fixed head by a horn hood, forms described first sound chamber between the bottom surface of described first loud speaker and described fixed head; Described second loud speaker is fixed between described arc outer baffle and described horn hood, forms described second sound chamber between the bottom surface of described second loud speaker, described horn hood, described arc outer baffle and described fixed head.

3. double horn headphone according to claim 2, it is characterized in that: described horn hood comprises a cover portion be located at above described first loud speaker, the end face in described cover portion upwards projection is formed with a projection, described projection has a mounting surface near the side of described arc outer baffle, and described second loud speaker is placed between the described mounting surface of described projection and the inwall of described arc outer baffle.

4. double horn headphone according to claim 3, it is characterized in that: the described mounting surface of described projection is convexly equipped with one first flange towards described arc outer baffle direction, described arc outer baffle inwall is convexly equipped with one second flange towards described projection direction, and the bottom edge of described second loud speaker is connected on the top end face of described first flange and the top end face of described second flange respectively.

5. the double horn headphone according to any one of claim 2 to 4, is characterized in that: there is predetermined angle between described first loud speaker and described fixed head.

6. double horn headphone according to claim 5, is characterized in that: the scope of described predetermined angle is between 10 ° to 30 °.

7. double horn headphone according to claim 5, is characterized in that: position corresponding with described first loud speaker on the described contact surface of described fixed head is formed with an inclined-plane, and the bottom surface of described inclined-plane and described first loud speaker be arranged in parallel.

8. double horn headphone according to any one of claim 1 to 4, is characterized in that: described first loud speaker is full-range loudspeaker, and described second loud speaker is subwoofer.

9. double horn headphone according to claim 8, is characterized in that: described headset main body also comprises one for being combined with the audio frequency of described second loud speaker by described first loud speaker and the low pass filter expanded the audio frequency frequency range after combining.

10. the double horn headphone according to any one of claim 2 to 4, is characterized in that: be provided with a sealing ring between described horn hood bottom surface and support collar top end face.