Open type flat horn

Abstract

The utility model discloses an open type flat horn, and belongs to the technical field of flat horns. An open type flat horn comprises an upper shell and a lower shell, the outer surface of the upper shell is provided with a plurality of sound outlet holes, the sound outlet holes are annularly distributed, the center of the upper shell is provided with an integrally-formed front cavity hole shaft, the front cavity hole shaft extends to the outer surface of the upper shell, the center of the lower shell is provided with an integrally-formed rear cavity hole shaft, and the rear cavity hole shaft extends to the outer surface of the lower shell. And the rear cavity hole shaft extends to the bottom of the lower shell. In order to solve the problems of poor bass effect, turbid sound and great distortion caused by resonance of a closed cavity by utilizing a cavity formed between a loudspeaker back surface and an earphone rear cover in an existing loudspeaker, when a diaphragm vibrates to produce sound, the sound can be transmitted into a hole shaft, and then is transmitted to two sides of the loudspeaker through the hole shaft; the sound clarity and transparency can be improved, the condition of turbid sound is avoided, and meanwhile, the design of the opening can also facilitate external sound to enter the ears through the loudspeaker.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-panel loudspeakers, in particular to an open flat-panel loudspeaker. Background Art

[0002] Traditional headphone speakers are suitable for closed headphones. In order to produce bass effects, a cavity is usually formed between the back of the speaker and the back cover of the headphone, and the resonance of the closed cavity is used to produce bass. Therefore, the low-frequency effect is poor, the sound is turbid, and the distortion is large, which cannot meet the current consumer demand for sound effects. Utility Model Content

[0003] The purpose of the utility model is to provide an open flat speaker. When the diaphragm vibrates and produces sound, the sound can be transmitted to the inside of the hole axis, and then transmitted to the two sides of the speaker through the hole axis, which can improve the sound clarity and transparency and avoid the turbidity of the sound. At the same time, the open hole design can also facilitate external sound to enter the ear through the speaker, which can solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an open flat speaker, comprising an upper shell and a lower shell, the outer surface of the upper shell is provided with a plurality of sound holes, the sound holes are distributed in a ring shape, a front cavity hole axis which is integrally formed and extends to the outer surface of the upper shell is provided in the center of the upper shell, a rear cavity hole axis which is integrally formed and extends to the bottom of the lower shell is provided in the center of the lower shell, a diaphragm is provided below the upper magnetic circuit, a membrane hole is provided on the surface of the diaphragm, a membrane hole support ring is provided at the bottom of the diaphragm, and a membrane edge support ring is provided on the outer side of the bottom of the diaphragm.

[0005] Preferably, an upper magnetic circuit is provided below the upper shell, the upper magnetic circuit includes an upper outer magnet and an upper inner magnet, the sound outlet is located between the upper outer magnet and the upper inner magnet, and the front cavity hole axis extends to the inner side of the upper inner magnet.

[0006] Preferably, the membrane hole corresponds to the front cavity hole axis, and the diaphragm is connected to the lower shell through a membrane edge support ring.

[0007] Preferably, a voice coil is disposed below the diaphragm, the voice coil is closely connected to the diaphragm, and a lower magnetic circuit is disposed below the voice coil, the lower magnetic circuit includes a lower external magnet and a lower internal magnet.

[0008] Preferably, the lower inner magnet is connected to the lower shell through a rear cavity hole axis, and the rear cavity hole axis is fittedly connected to the membrane hole support ring.

[0009] Preferably, the rear cavity hole axis passes through the membrane hole support ring and extends to the interior of the front cavity hole axis.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the utility model, a hole-shaft structure is designed inside the upper shell and the lower shell. The hole-shaft extends inward and is hollow inside. The front-chamber hole-shaft inside the front-chamber hole-shaft fits with the membrane hole on the surface of the diaphragm, and the rear-chamber hole-shaft inside the lower shell fits with the diaphragm with the help of the membrane hole support ring below the membrane hole. When the diaphragm vibrates and sounds, the sound can be transmitted to the inside of the hole-shaft, and then transmitted to both sides of the speaker through the hole-shaft, which can improve the clarity and transparency of the sound and avoid the turbidity of the sound. At the same time, the design of the opening can also facilitate the external sound to enter the ear through the speaker;

[0012] 2. In the present invention, the upper shell and the lower shell are combined with the diaphragm structure to separate the interior of the speaker into two cavity structures. When the voice coil drives the diaphragm to vibrate, the sound will be emitted through the sound outlet holes on the surface of the upper shell and then transmitted to the ears, which can effectively avoid the loss of sound quality during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall front view of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall expanded structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the diaphragm structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the magnetic circuit structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the rear cavity hole shaft structure of the utility model.

[0018] In the figure: 1, upper shell; 2, lower shell; 3, upper magnetic circuit; 4, diaphragm; 5, voice coil; 6, lower magnetic circuit; 101, sound outlet hole; 102, front cavity hole axis; 201, rear cavity hole axis; 301, upper external magnet; 302, upper internal magnet; 401, membrane hole support ring; 402, membrane edge support ring; 601, lower external magnet; 602, lower internal magnet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In order to solve the problem that the existing speakers use the cavity formed between the back of the speaker and the back cover of the earphone to produce a poor bass effect, muddy sound, and great distortion by virtue of the resonance of the closed cavity; please refer to Figure 1-4 , the utility model provides the following solutions:

[0021] Embodiment 1:

[0022] An open flat speaker comprises an upper shell 1 and a lower shell 2. The outer surface of the upper shell 1 is provided with a plurality of sound outlet holes 101, and the sound outlet holes 101 are distributed in a ring shape. An integrally formed front cavity hole axis 102 is provided in the center of the upper shell 1, and the front cavity hole axis 102 extends to the outer surface of the upper shell 1. An integrally formed rear cavity hole axis 201 is provided in the center of the lower shell 2, and the rear cavity hole axis 201 extends to the bottom of the lower shell 2.

[0023] In this embodiment, a hole-shaft structure is designed inside the upper shell 1 and the lower shell 2. The hole shaft extends inwardly and is hollow inside. The front cavity hole shaft 102 inside the front cavity hole shaft 102 fits with the membrane hole on the surface of the diaphragm 4, and the rear cavity hole shaft 201 inside the lower shell 2 fits with the diaphragm 4 with the help of the membrane hole support ring 401 below the membrane hole. When the diaphragm 4 vibrates and makes a sound, the sound can be transmitted to the inside of the hole shaft, and then transmitted to the two sides of the speaker through the hole shaft, which can improve the clarity and transparency of the sound and avoid the turbidity of the sound. At the same time, the design of the opening can also facilitate the external sound to enter the ear through the speaker;

[0024] An upper magnetic circuit 3 is arranged below the upper shell 1, and the upper magnetic circuit 3 includes an upper outer magnet 301 and an upper inner magnet 302. The sound outlet 101 is located between the upper outer magnet 301 and the upper inner magnet 302. The front cavity hole axis 102 extends to the inner side of the upper inner magnet 302. A diaphragm 4 is arranged below the upper magnetic circuit 3. The surface of the diaphragm 4 is provided with a diaphragm hole. The bottom of the diaphragm 4 is provided with a diaphragm hole support ring 401. The outer side of the bottom of the diaphragm 4 is provided with a diaphragm edge support ring 401. 02, the membrane hole corresponds to the front cavity hole axis 102, the diaphragm 4 is connected to the lower shell 2 through the membrane edge support ring 402, a voice coil 5 is arranged below the diaphragm 4, the voice coil 5 is closely connected to the diaphragm 4, a lower magnetic circuit 6 is arranged below the voice coil 5, the lower magnetic circuit 6 includes a lower external magnet 601 and a lower internal magnet 602, the lower internal magnet 602 is connected to the lower shell 2 through the rear cavity hole axis 201, and the rear cavity hole axis 201 is closely connected to the membrane hole support ring 401;

[0025] In this embodiment, the upper shell 1 and the lower shell 2 are combined with the diaphragm 4 structure to divide the interior of the speaker into two cavity structures. When the voice coil 5 drives the diaphragm 4 to vibrate, the sound will be emitted through the sound outlet 101 on the surface of the upper shell 1 and then transmitted to the ear, which can effectively avoid the loss of sound quality during the transmission process.

[0026] Embodiment 2:

[0027] An open flat speaker comprises an upper shell 1 and a lower shell 2, wherein a plurality of sound outlet holes 101 are arranged on the outer surface of the upper shell 1, and the sound outlet holes 101 are arranged in a ring-shaped manner, an integrally formed front cavity hole axis 102 is arranged in the center of the upper shell 1, and the front cavity hole axis 102 extends to the outer surface of the upper shell 1, an integrally formed rear cavity hole axis 201 is arranged in the center of the lower shell 2, and the rear cavity hole axis 201 extends to the bottom of the lower shell 2, an upper magnetic circuit 3 is arranged below the upper shell 1, and the upper magnetic circuit 3 comprises an upper external magnet 301 and an upper internal magnet 302, the sound outlet holes 101 are located between the upper external magnet 301 and the upper internal magnet 302, and the front cavity hole axis 102 extends to the inner side of the upper internal magnet 302 A diaphragm 4 is arranged below the upper magnetic circuit 3, a diaphragm hole is arranged on the surface of the diaphragm 4, a diaphragm hole supporting ring 401 is arranged at the bottom of the diaphragm 4, a diaphragm edge supporting ring 402 is arranged on the outer side of the bottom of the diaphragm 4, the diaphragm hole corresponds to the front cavity hole axis 102, the diaphragm 4 is connected to the lower shell 2 through the diaphragm edge supporting ring 402, a voice coil 5 is arranged below the diaphragm 4, the voice coil 5 is closely connected to the diaphragm 4, a lower magnetic circuit 6 is arranged below the voice coil 5, the lower magnetic circuit 6 includes a lower external magnet 601 and a lower internal magnet 602, the lower internal magnet 602 is connected to the lower shell 2 through the rear cavity hole axis 201, and the rear cavity hole axis 201 passes through the diaphragm hole supporting ring 401 and extends to the inside of the front cavity hole axis 102;

[0028] In this embodiment, the overall structure remains unchanged, and the rear cavity hole axis 201 is lengthened and extended to the inside of the front cavity hole axis 102 to wrap the diaphragm 4 and the upper shell 1. In this way, the diaphragm 4 and the upper shell 1 are internally positioned by relying on the rear cavity hole axis 201, the assembly process is simpler, the cost is lower, and the product consistency is better.

[0029] Working principle: the interior of the upper shell 1 and the lower shell 2 are designed with a hole-axis structure. After the upper shell 1 and the lower shell 2 are combined, the interior of the speaker can be divided into two cavity structures in cooperation with the diaphragm 4 structure. When the voice coil 5 drives the diaphragm 4 to vibrate, the sound will be emitted through the sound outlet hole 101 on the surface of the upper shell 1 and then transmitted to the ear, which can effectively avoid the loss of sound quality during the transmission process. The front cavity hole axis 102 on the inner side of the front cavity hole axis 102 fits with the membrane hole on the surface of the diaphragm 4, and the rear cavity hole axis 201 inside the lower shell 2 fits with the diaphragm 4 with the help of the membrane hole support ring 401 under the membrane hole. When the diaphragm 4 vibrates and makes a sound, the sound can be transmitted to the inside of the hole axis, and then transmitted to the two sides of the speaker through the hole axis, which can improve the sound clarity and transparency and avoid the turbidity of the sound. At the same time, the opening design can also facilitate external sound to enter the ear through the speaker.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An open flat speaker, comprising an upper shell (1) and a lower shell (2), characterized in that: The outer surface of the upper shell (1) is provided with a plurality of sound outlet holes (101), which are distributed in a ring shape. A front cavity hole axis (102) which is integrally formed and extends to the outer surface of the upper shell (1) is provided in the center of the upper shell (1), and a rear cavity hole axis (201) which is integrally formed and extends to the bottom of the lower shell (2) is provided in the center of the lower shell (2). An upper magnetic circuit (3) is provided below the upper shell (1), and a diaphragm (4) is provided below the upper magnetic circuit (3). The surface of the diaphragm (4) is provided with a diaphragm hole, the bottom of the diaphragm (4) is provided with a diaphragm hole support ring (401), and the outer side of the bottom of the diaphragm (4) is provided with a diaphragm edge support ring (402).

2. An open flat speaker according to claim 1, characterized in that: The upper magnetic circuit (3) comprises an upper outer magnet (301) and an upper inner magnet (302), the sound outlet hole (101) is located between the upper outer magnet (301) and the upper inner magnet (302), and the front cavity hole axis (102) extends to the inner side of the upper inner magnet (302).

3. The open flat speaker according to claim 1, characterized in that: The membrane hole corresponds to the front cavity hole axis (102), and the membrane (4) is connected to the lower shell (2) via a membrane edge support ring (402).

4. The open flat speaker according to claim 1, characterized in that: A voice coil (5) is arranged below the diaphragm (4), and the voice coil (5) is closely connected to the diaphragm (4). A lower magnetic circuit (6) is arranged below the voice coil (5), and the lower magnetic circuit (6) includes a lower external magnet (601) and a lower internal magnet (602).

5. The open flat speaker according to claim 4, characterized in that: The lower inner magnet (602) is connected to the lower shell (2) via the rear cavity hole axis (201), and the rear cavity hole axis (201) is fitted and connected to the membrane hole support ring (401).

6. The open flat speaker according to claim 1, characterized in that: The rear cavity hole axis (201) passes through the membrane hole support ring (401) and extends to the interior of the front cavity hole axis (102).

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