A FULL-FREQUENCY BAND HIGH QUALITY SPEAKER WITH A BAR AND SOUND TUNNELS

Abstract

A full-frequency band high quality speaker with a bar and sound tunnels includes a voice coil, magnet, diaphragm and magnetically conductive structure; the diaphragm is conical, a bridge-style bar is on the surface of at least one side of the diaphragm; the diaphragm includes at least two grooves, each horizontally radial; each groove crosses the bridge-type bar in the horizontal direction and the length direction of the groove is perpendicular to the bridge-type bar; the groove is concave on the surface of the diaphragm to form a sound tunnel. The diaphragm is changed to the current standard vibration mode, and the timbre of treble register is not bright and the timbre of bass register is not sonorous and mellow enough from the perspective of vibration, resonance and phonation. The practice proves that the improved scheme has outstanding substantive characteristics and remarkable technical progress, and has obtained obvious technical results.

Claims

1. A full-frequency band high quality speaker with a bar and sound tunnels, wherein: it comprises a voice coil, a magnet, a diaphragm and magnetically conductive structure; the diaphragm is conical, of which upper end is outwardly expanded open shape and lower end is internally shrunk corresponding to the voice coil; a bridge-style bar is provided on the surface of at least one side of the diaphragm; the bridge-style bar is annular and has a distance from a dust cover of the voice coil in the horizontal direction of the speaker; the diaphragm is provided with at least two grooves on the same surface where the bridge-type bar is provided, and each groove is radially arranged according to the center of the diaphragm in the horizontal direction, so as to divide the surface of the diaphragm on the outside of the bridge-type bar into several resonance regions; each groove crosses the bridge-type bar in the horizontal direction and the length direction of the groove is perpendicular to the bridge-type bar; wherein, the grooves are concave on the surface of the diaphragm to form sound tunnels.

2. The full-frequency band high quality speaker according to claim 1, wherein: the diaphragm is divided into a treble region in the upper section, an alto region in the middle section and a bass region in the lower section according to sound frequency band; wherein, the wall thickness of the diaphragm gradually increases from the outer edge to the inside, so that the wall thickness of the bass region is greater than that of the alto region, and the wall thickness of the alto region is greater than that of the treble region; the bridge-type bar is located in the bass region.

3. The full-frequency band high quality speaker according to claim 1, wherein: the bottom of the bridge-type bar is provided with a bridge opening; the bridge opening is arranged through the width direction of the bridge-type bar, and the lower opening of the bridge opening corresponds to the groove.

4. The full-frequency band high quality speaker according to claim 1, wherein: when the diaphragm is horizontal, the center line of the upper and lower directions of the bridge-type bar overlaps the center line of the upper and lower directions of the diaphragm.

5. The full-frequency band high quality speaker according to claim 1, wherein: each groove is an arc groove.

6. The full-frequency band high quality speaker according to claim 1, wherein: smooth transition surface is arranged between the outer end of the groove and the surface of the diaphragm.

Description

DESCRIPTION OF FIGURES

[0028] FIG. 1 is the structure diagram of the traditional speaker;

[0029] FIG. 2 is a schematic diagram of the overall structure of the embodiment of the invention;

[0030] FIG. 3 is an overhead view diagram of the diaphragm in the embodiment of the invention;

[0031] FIG. 4 is the A-A profile in FIG. 3.

[0032] FIG. 5 is a stereogram of the diaphragm in the embodiment of the invention;

[0033] FIG. 6 is a schematic diagram of the embodiment of the invention when the bridge-style bar is arranged on the lower surface of the diaphragm;

[0034] FIG. 7 is a schematic diagram of the embodiment of the invention when the bridge-style bars are respectively arranged on the upper and lower surfaces of the diaphragm at the same time.

[0035] In the above figures: 1. voice coil; 2. magnet; 3. magnetically conductive plate; 4. Yoke; 5. diaphragm; 6. diaphragm; 6a. treble region; 6b. alto region; 6c. bass region; 7. bridge-style bar; 8. dust cover; 9. groove; 10. resonance region; 11. bridge opening.

Specific Implementation

[0036] The invention is further described in combination with the attached figures and embodiments below:

[0037] Embodiment: The present invention will be clearly explained by the following schematics and detailed descriptions. Any person skilled in the field, after learning the embodiments of the present invention, may change and modify them by the techniques taught by the present invention, which is not out of the spirit and scope of the present invention.

[0038] As used in this article, connection or set up may refer to the direct physical contact between two or more components or devices, or to the indirect physical contact between two or more components or devices, or to the interoperation or action of two or more components or devices.

[0039] The terms comprise, including, provided, and etc. used in this article are all open terms, which means including but not limited to.

[0040] The terms used in this article, unless otherwise specified, usually have the common meaning of each word used in this field, in the content of this case and in the special content. Some words used to describe the invention will be discussed below or elsewhere in this specification to provide additional guidance for those skilled in the art on the description of the case.

[0041] The words upper and lower used in this article are directional words. In this invention, they are only used to describe the position relationship between the structures, not to define the specific direction of the protection scheme and actual implementation of the invention.

[0042] Refer to the attached FIGS. 2-7, a full-frequency band high quality speaker with a bar and sound tunnels comprises a voice coil 1, a magnet 2, a diaphragm 6 and magnetically conductive structure; The magnetically conductive structure can be composed of a magnetically conductive plate 3 and a Yoke 4. The diaphragm 6 is conical, of which upper end is outwardly expanded open shape and lower end is internally shrunk corresponding to the voice coil 1.

[0043] A bridge-style bar 7 is provided on the diaphragm 6; the bridge-style bar 7 is annular and set on the bottom of the upper surface of diaphragm 6, which has a distance from a dust cover 8 of the voice coil 1 in the horizontal direction of the speaker;

[0044] Preferred, the diaphragm 6 is divided into a treble region 6a in the upper section, an alto region 6b in the middle section and a bass region 6c in the lower section according to sound frequency band; the wall thickness of the diaphragm gradually increases from the outer edge to the inside (from top to bottom in FIG. 2), so that the wall thickness of the bass region 6c is greater than that of the alto region 6b, and the wall thickness of the alto region 6b is greater than that of the treble region 6a; the bridge-type bar 7 is located in the bass region 6c, increasing the load on the middle part of diaphragm 6.

[0045] By setting the bridge-type bar 7 on the upper surface of the diaphragm 6, because the bass has a larger amplitude and lower frequency than the treble, the bass resonance is concentrated in the central region of the diaphragm 6 close to the voice coil 1, and the treble resonance is concentrated in the peripheral edge region of the diaphragm 6, strengthening the intensity of the central region of the diaphragm 6, which plays an important role in improving the timbre and sound quality of the bass region 6c. Because the thickness of diaphragm 6 is the gradual structure of thickness in the central region and thin around (i.e. a design of thin on top and thick on the bottom), the strength of the central region of the diaphragm is enhanced, the thickness difference between the central region of the diaphragm 6 and the surrounding edge region is also changed, which also play a beneficial role in improving the timbre and sound quality of the treble register.

[0046] The upper surface of the diaphragm 6 is provided with at least two grooves 9, and the grooves 9 is uniformly distributed radially to the center of the horizontal direction of the diaphragm 6 as a reference, and then divide the surface of the diaphragm 6 on the outside of the bridge-type bar 7 into several resonance regions 10; Each groove 9 crosses the bridge-type bar 7 in the horizontal direction and the length direction of the groove 9 is perpendicular to the bridge-type bar 7.

[0047] The grooves 9 are concave on the surface of the diaphragm 6 to form sound tunnels.

[0048] Radial grooves 9 are provided on the upper surface of the diaphragm 6, and the radial grooves 9 actually form radial sound tunnels on the diaphragm, and the area close to the voice coil 1 collects the vibration of the voice coil 1, and then transmits rapidly to the surrounding edge of the diaphragm 6 through the radial sound tunnel (namely, the tunnel of sound), which plays a key role in improving the timbre and sound quality of the treble register.

[0049] The bottom of bridge-type bar 7 is provided with a bridge opening 11; the bridge opening 11 is arranged through the width direction of the bridge-type bar 7, and the lower opening of the bridge opening 11 corresponds to the groove 9.

[0050] The bar is designed as a bridge-style bar 7, especially one side of the bar is designed with a bridge opening (breach) 11, so that the bar is like a bridge arch structure. When the bridge-style bar 7 is located on the sound tunnel, it is more conducive to the transmission of vibration through the sound tunnel, so as to be more conducive to the resonance and rapid vibration response of the diaphragm 6.

[0051] Preferred, when the diaphragm 6 is horizontal, the center line of the upper and lower directions of the bridge-type bar 7 overlaps the center line of the upper and lower directions of the diaphragm 6.

[0052] Each groove 9 is an arc groove, which are capable of reduce the sudden change of thickness of the diaphragm 6 as far as possible in the thickness and avoid affecting the resonance and vibration of the diaphragm 6. A smooth transition surface is arranged between the outer end of the groove 9 and the surface of the diaphragm 6, so that the vibration is more evenly transmitted to the peripherals of diaphragm 6.

[0053] Other implementations and structural changes of the invention are described as follows: 1. In the above embodiment, the speaker shown in the figures is only for illustration purposes, and its structure is not used to limit the protection scope of the invention. Other speakers of similar structure that adopt the technical characteristics of the invention shall be covered by the protection scope of the invention.

[0054] 2. In the above embodiment, the bridge opening 11 is provided on the bridge-type bar 7, but the invention is not limited to this. Bridge opening 11 may not be provided, or other structures similar to bridge opening 11 may be provided to facilitate vibration transmission through sound tunnel, which is easy to be understood and accepted by those skilled in this field.

[0055] 3. In the above embodiment, the number of the bridge-type bar 7 is not limited to one, but may also be multiple in parallel or other designs that help to strengthen the load in the middle of diaphragm 6, which is easily understood and accepted by those skilled in the field.

[0056] 4. In the above embodiment, the bridge-type bar 7 and the grooves 9 may be located on the upper surface of the diaphragm 6 (as shown in FIG. 2), or on the lower surface of the diaphragm 6 (as shown in FIG. 6), or simultaneously on the upper and lower surfaces of the diaphragm 6 (as shown in FIG. 7).

[0057] 5. In the above embodiment, the grooves 9 are arc grooves. But the invention is not limited to this; the groove may be designed into other shapes, such as V shape, U shape, W shape, and other concave structure. This is easily understood and accepted by those skilled in the field.

[0058] 6. In the above embodiment, the material of the diaphragm 6 is not limited to the paper, but can also be other materials, such as metal, carbon fiber, etc.

[0059] Compared with the prior art, the present invention improves the previous speaker, especially the diaphragm design in the speaker, in order to solve the problem that the previous speaker is unable to take into account the treble, alto and bass registers and have good resonance timbre at the same time. It is embodied in the following aspects: first, a bridge-type bar is set up on the surface of the diaphragm; second, the grooves are radially arranged on the surface of the diaphragm, and the radial grooves form radial sound tunnels on the surface of the diaphragm.

[0060] Aiming at the problem that the timbre of treble register of the previous speaker is not bright and the timbre of bass register is not sonorous and mellow enough, the structure and sound mechanism of the speaker are deeply discussed and studied, and the main reason for the poor timbre of treble register and bass register of the previous speaker is found out that the structure of the diaphragm is unreasonable. Therefore, the inventor breaks the shackles of the previous speaker composition design, and boldly proposes an improved scheme of the invention. This improved scheme changes the diaphragm from the previous free vibration mode to the current standard vibration mode, and solves the problem that the timbre of treble register of the previous speaker is not bright and the timbre of bass register is not sonorous and mellow enough from the perspective of vibration, resonance and phonation, improving the fidelity of sound in each frequency band. The practice proves that the improved scheme has outstanding substantive characteristics and remarkable technical progress, and has obtained obvious technical results.

[0061] The above embodiments are only intended to illustrate the technical conception and characteristics of the invention, and enable persons familiar with the technology to understand the content of the invention and implement it accordingly, but don't limit the scope of protection of the invention. Any equivalent variation or modification made in accordance with the spirit substance of the invention shall be covered by the protection of the invention.