A full-band high-quality electronic product speaker with sound beam and sound tunnel

Abstract

A full-band high-quality electronic product speaker with a sound beam and a sound tunnel, comprising a voice coil, a metal plate, a diaphragm and a magnetic conductive structure; the diaphragm is annular, its outer edge is combined with the outer frame of the speaker, the inner edge is combined with the outer periphery of the metal plate, and the middle of the metal plate is arranged corresponding to the upper end of the voice coil; a bridge-type sound beam is arranged on the diaphragm, the sound beam is annularly erected on the upper surface of the inner edge of the diaphragm, and is located on the outside of the metal plate in the horizontal direction of the speaker; four grooves are arranged on the upper surface of the diaphragm, and the diaphragm surface located outside the bridge-type sound beam is divided into four resonance areas; each groove crosses the bridge-type sound beam, and the groove is concavely arranged on the upper surface of the diaphragm to form a sound tunnel. The present invention changes the diaphragm from a free vibration mode to a standard vibration mode, and solves the problem that the high-pitched area of ​​the electronic product speaker is not bright and the low-pitched area is not thick and round enough from the perspective of vibration, resonance and sound generation. Practice has proved that the improvement scheme has outstanding substantial characteristics and significant technical progress, and has achieved obvious technical effects.

Description

Technical Field

[0001] The invention relates to a loudspeaker, and in particular to a full-band high-sound-quality electronic product loudspeaker with a sound beam and a sound tunnel. The electronic product loudspeaker can be applied to electronic products such as earphones, headsets, mobile phones, tablet computers, and laptop computers. Background Art

[0002] A speaker (also called a horn) is a device that converts electrical signals into sound signals. Figure 1 , 2 As mentioned above, the traditional electronic product speaker is usually composed of a voice coil 1, a metal plate 2, a diaphragm 3, a magnet and a magnetic conductive structure (not shown in the figure). When the speaker is working, the current of different magnitudes output by the amplifier is converted into sound waves through frequency waves, and the energy output is increased by the power, and the voice coil 1 moves under the action of the magnetic field. At the same time, the voice coil 1 is connected to the diaphragm 3 and drives the diaphragm 3 to vibrate, and then the vibration of the diaphragm 3 pushes the air, thereby producing sound.

[0003] The common problem of traditional speakers for electronic products is that the speaker has an inherent resonant frequency when making sounds. When the resonant frequency range is exceeded, the high pitch cannot be bright and the low pitch is not thick and round enough. Bass must be achieved through a dedicated woofer, and treble must be achieved through a dedicated tweeter, that is, the timbre is proportional to the number of speakers, and it is impossible to achieve high-quality timbre in the full frequency band through a single speaker. The main reason is that the current speaker diaphragm cannot meet the good broadband vibration from the high pitch to the low pitch, that is, it cannot adapt to the wide frequency change resonance and vibration of the high pitch, mid-range and low pitch at the same time. In summary, the structural design of traditional speakers for electronic products is unreasonable, which is not conducive to the diaphragm to play a good sound wave vibration from the high pitch to the low pitch. If you want to achieve an appreciation-level sound quality performance, you need to combine multiple speakers of different frequency bands, which is usually expensive and not conducive to expanding the market. In addition, the volume is usually large, requiring more placement space, which is not conducive to the thinness of electronic products.

[0004] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention. Summary of the invention

[0005] The object of the present invention is to provide a full-band high-quality electronic product loudspeaker with a sound beam and a sound tunnel.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A full-band high-quality electronic product speaker with a sound beam and a sound tunnel, comprising a voice coil, a metal plate, a diaphragm and a magnetic conductive structure; the diaphragm is annular, the outer edge of which is combined with the outer frame of the speaker, the inner edge of which is combined with the outer periphery of the metal plate, and the middle part of the metal plate is arranged corresponding to the upper end of the voice coil;

[0008] The diaphragm is provided with a bridge-type sound beam, which is annular and is mounted on the upper surface of the inner edge of the diaphragm and is located outside the metal plate in the horizontal direction of the speaker;

[0009] Four grooves are arranged on the upper surface of the diaphragm, and the extension lines of each groove intersect at the center of the diaphragm in the horizontal direction, and two adjacent grooves are arranged at 90 degrees to each other; the diaphragm surface located outside the bridge-type sound beam is equally divided into four resonance areas by each groove; each groove crosses the bridge-type sound beam in the horizontal direction of the speaker, and the length direction of the groove is perpendicular to the bridge-type sound beam;

[0010] Wherein, the groove is recessed on the upper surface of the diaphragm to form a sound tunnel.

[0011] The relevant contents in the above technical solution are explained as follows:

[0012] 1. In the above solution, the bridge beam is located outside the metal plate in the horizontal direction of the speaker. With this design, there is a distance between the bridge beam and the voice coil, which can help to collect the sound vibration of the voice coil.

[0013] 2. In the above scheme, the extension lines of the grooves intersect at the center of the diaphragm in the horizontal direction, and the adjacent grooves are arranged at 90 degrees to each other, which helps to quickly transmit the vibration of the voice coil to the surroundings of the diaphragm through the cross-shaped sound tunnel (i.e., the sound tunnel) formed by the grooves.

[0014] 3. In the above scheme, the diaphragm is divided into a high-pitched area in the outer section, a mid-pitched area in the middle section, and a low-pitched area in the inner section from the sound frequency band; wherein the wall thickness of the diaphragm gradually increases from the outer to the inner side, the wall thickness of the low-pitched area is greater than that of the mid-pitched area, and the wall thickness of the mid-pitched area is greater than that of the high-pitched area; the bridge beam is located in the low-pitched area.

[0015] With this design, by setting the thicker bass area close to the voice coil, the low-frequency vibration with lower frequency and larger amplitude can be made in the bass area of ​​the diaphragm to produce a thicker and rounder bass; by setting the thinner treble area far away from the voice coil, the high-frequency vibration with higher frequency and smaller amplitude can be made in the treble area of ​​the diaphragm to produce a more transparent and bright treble, thereby effectively improving the timbre and sound quality produced by the speaker in the entire frequency band.

[0016] 4. In the above solution, a bridge hole is provided at the bottom of the bridge-type sound beam, and the bridge hole is arranged through the width direction of the bridge-type sound beam, and the lower opening of the bridge hole corresponds to the groove.

[0017] With this design, placing the sound beam on the sound tunnel is more conducive to transmitting vibration through the sound tunnel, thereby being more conducive to improving the vibration response rate of the diaphragm.

[0018] 5. In the above solution, when the diaphragm is horizontal, the center line of the bridge beam in the vertical direction overlaps with the center line of the diaphragm in the vertical direction, so as to improve the sound quality and timbre.

[0019] 6. In the above solution, each of the grooves is an arc-shaped groove, which can minimize the sudden change in thickness of the diaphragm and affect the resonance and vibration of the diaphragm.

[0020] 7. In the above solution, the length of the groove is smaller than the width of the diaphragm, and smooth transition surfaces are provided between the two outer ends of the groove and the upper surface of the diaphragm.

[0021] 8. In the above solution, the diaphragm is also provided with a plurality of grooves, and the grooves are arranged radially to enhance the structural strength of the diaphragm. The grooves can be designed to be straight to avoid interference with the sound tunnel.

[0022] The working principle and advantages of the present invention are as follows:

[0023] The present invention discloses a full-band high-sound-quality electronic product loudspeaker with a sound beam and a sound tunnel, comprising a voice coil, a metal plate, a diaphragm and a magnetic conductive structure; the diaphragm is annular, and its outer edge is combined with an outer frame of the loudspeaker, and its inner edge is combined with the outer periphery of the metal plate, and the middle part of the metal plate is arranged corresponding to the upper end of the voice coil; a bridge-type sound beam is arranged on the diaphragm, and the sound beam is annularly erected on the upper surface at the inner edge of the diaphragm, and is located on the outside of the metal plate in the horizontal direction of the loudspeaker; four grooves are arranged on the upper surface of the diaphragm, and the diaphragm surface located on the outside of the bridge-type sound beam is equally divided into four resonance areas; each groove crosses the bridge-type sound beam, and is perpendicular to the bridge-type sound beam in the length direction of the groove; the groove is concavely arranged on the upper surface of the diaphragm to form a sound tunnel.

[0024] Compared with the prior art, in order to solve the problem that the existing speakers of electronic products cannot take into account the high, medium and low ranges and have good resonance timbre, the present invention improves the existing speakers, especially the diaphragm design in the speakers. Specifically, it is embodied in the following aspects: first, a bridge-type sound beam is set on the upper surface of the diaphragm; second, a cross-shaped groove is opened on the upper surface of the diaphragm, and the cross-shaped groove forms a cross-shaped sound tunnel on the upper surface of the diaphragm.

[0025] The present invention aims at the problem that the treble region of existing electronic product speakers is not bright, and the bass region is not thick and round enough, and conducts in-depth discussion and research on the design and sound generation mechanism of the speakers, and finds out that the main reason for the poor timbre of the treble and bass regions of existing speakers is due to the unreasonable design of the diaphragm. Based on this, the inventor broke the constraints of the previous electronic product speaker composition design, and boldly proposed the improved design scheme of the present invention. This improved design scheme changes the diaphragm from the previous free vibration mode to the current standard vibration mode, and solves the problem that the treble region of the speaker is not bright, and the bass region is not thick and round enough from the perspective of vibration, resonance, and sound generation. Practice has proved that the improved design scheme has outstanding substantive characteristics and significant technical progress, and has achieved obvious technical effects.

[0026] Due to the application of the above technical solution, the present invention has the following advantages and effects compared with the existing electronic product speaker diaphragm:

[0027] 1. The present invention sets a bridge-type sound beam structure on the upper surface of the diaphragm. Since the bass has a larger amplitude and lower frequency than the treble, the bass resonance is concentrated in the central area of ​​the diaphragm close to the voice coil, and the treble resonance is concentrated in the peripheral edge areas of the diaphragm. The strength of the central area of ​​the diaphragm is strengthened, which plays an important role in improving the timbre and sound quality of the bass area. Since the thickness of the diaphragm is a gradual thickness structure with thicker central area and thinner peripheral areas (i.e., thinner outside and thicker inside), the strength of the central area of ​​the diaphragm is strengthened, and the thickness difference between the central area of ​​the diaphragm and the peripheral edge areas is relatively changed, which can also play a beneficial role in improving the timbre and sound quality of the treble area.

[0028] 2. The present invention provides a cross-shaped groove on the upper surface of the diaphragm, which actually forms a cross-shaped sound tunnel on the upper surface of the diaphragm. The area close to the voice coil collects the vibration of the voice coil and quickly transmits it to the edges of the diaphragm around the cross-shaped sound tunnel (i.e., the sound tunnel), which plays a key role in improving the timbre and sound quality in the high-pitched area.

[0029] 3. The present invention designs the sound beam into a bridge-type sound beam structure, especially a bridge hole (hole gap) is designed on one side of the sound beam, so that the sound beam is like a bridge arch structure. When such a sound beam is erected 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.

[0030] 4. The present invention divides the diaphragm into four equal resonance areas through the design of bridge-type sound beams and cross-shaped grooves. When the speaker is working, the vibration of the voice coil is first transmitted to the central area of ​​the diaphragm, and then transmitted to each resonance area through the sound tunnel, and resonance and vibration are generated, thereby amplifying the vibration of the external sound source into the resonance sound of the diaphragm. Each resonance area can generate one sound wave amount, plus one original sound wave amount, a total of five sound wave amounts. The sound wave amount is the number of sound waves, and the sound wave amount directly affects the timbre, penetration and volume of the diaphragm. Therefore, the design of the present invention can significantly improve the timbre of the treble and bass areas, and increase the penetration and volume of the treble and bass areas.

[0031] 5. The grooves of the present invention are all arc-shaped, which can reduce the thickness mutation of the diaphragm as much as possible and avoid affecting the resonance and vibration of the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Attached Figure 1 This is a schematic diagram of the structure of a traditional electronic product speaker;

[0033] Attached Figure 2 A schematic top view of a traditional electronic product speaker;

[0034] Attached Figure 3 It is a structural schematic diagram of an embodiment of the present invention;

[0035] Attached Figure 4 It is a schematic top view of an embodiment of the present invention.

[0036] In the above figures: 1. Voice coil; 2. Metal plate; 3. Diaphragm; 4. Diaphragm; 5. Bridge beam; 6. Groove; 7. Resonance zone; 8. Bridge hole; 9. Groove. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0038] Embodiment: The present invention will be clearly described below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0039] As used herein, “connected” or “configured” may refer to direct physical contact or indirect physical contact between two or more components or devices, or may refer to mutual operation or action between two or more components or devices.

[0040] The terms “include,” “including,” “have,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0041] The terms used in this document generally have the ordinary meaning of each term used in this field, in the context of the case and in the specific context, unless otherwise noted. Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present invention.

[0042] The terms “upper” and “lower” used in this article are directional terms. In the present invention, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection scheme of the present invention and the specific direction during actual implementation.

[0043] See attached Figure 3 , 4 As shown, a full-band high-quality electronic product speaker with a sound beam and a sound tunnel includes a voice coil 1, a metal plate 2, a diaphragm 4, and a magnetic conductive structure (not shown in the figure). The diaphragm 4 is annular, with its outer edge combined with the outer frame of the speaker, and its inner edge combined with the outer periphery of the metal plate 2, and the middle of the metal plate 2 is arranged corresponding to the upper end of the voice coil 1.

[0044] The diaphragm 4 is provided with a bridge beam 5 which is annular and is mounted on the upper surface of the inner edge of the diaphragm 4 and is located outside the metal plate 2 in the horizontal direction of the speaker.

[0045] Preferably, the diaphragm 4 is divided into a treble zone in an outer section, a mid-range zone in a middle section, and a bass zone in an inner section from the audio frequency band; the wall thickness of the diaphragm 4 gradually increases from the outside to the inside, and the wall thickness of the bass zone is greater than that of the mid-range zone, and the wall thickness of the mid-range zone is greater than that of the treble zone; the bridge-type sound beam 5 is located in the bass zone, which can increase the middle load of the diaphragm 4.

[0046] By arranging the bridge-type sound beam 5 on the upper surface of the diaphragm 4, since the bass has a larger amplitude and lower frequency than the treble, the bass resonance is concentrated in the central area of ​​the diaphragm 4 close to the voice coil 1, and the treble resonance is concentrated in the peripheral edge areas of the diaphragm 4, thereby strengthening the strength of the central area of ​​the diaphragm 4, which plays an important role in improving the timbre and sound quality of the bass area. Since the thickness of the diaphragm 4 is a gradual thickness structure in which the central area is thick and the peripheral areas are thin (i.e., a design of thin outside and thick inside), the strength of the central area of ​​the diaphragm 4 is strengthened, and the thickness difference between the central area of ​​the diaphragm 4 and the peripheral edge areas is relatively changed, which can also play a beneficial role in improving the timbre and sound quality of the treble area.

[0047] Four grooves 6 are provided on the upper surface of the diaphragm 4, and the extension lines of each groove 6 intersect at the center of the diaphragm in the horizontal direction, and two adjacent grooves 6 are arranged at 90 degrees to each other; the surface of the diaphragm 4 located outside the bridge sound beam 5 is equally divided into four resonance areas 7 by each groove 6; each groove 6 crosses the bridge sound beam 5 in the horizontal direction of the speaker, and is perpendicular to the bridge sound beam 5 in the length direction of the groove 6.

[0048] The groove 6 is recessed on the upper surface of the diaphragm 4 to form a sound tunnel.

[0049] By opening a cross-shaped groove 6 on the upper surface of the diaphragm 4, the cross-shaped groove 6 actually forms a cross-shaped sound tunnel on the upper surface of the diaphragm 4, and the area close to the voice coil 1 collects the vibration of the voice coil 1 and quickly transmits it to the edges around the diaphragm 4 through the cross-shaped sound tunnel (i.e., the sound tunnel), which plays a key role in improving the timbre and sound quality of the high-pitched area. At the same time, by equally dividing the diaphragm 4 into four resonance areas 7, the vibration can be transmitted to the four resonance areas 7 through the sound tunnel and generate resonance, which can significantly improve the timbre of the bass and high-pitched areas.

[0050] The bottom of the bridge beam 5 is provided with a bridge hole 8, which is arranged through the width direction of the bridge beam 5, and the lower opening of the bridge hole 8 corresponds to the groove 6. The beam is designed as a bridge beam 5 structure, especially a bridge hole 8 (hole gap) is designed on one side of the beam, so that the bridge beam 5 is like a bridge arch structure. When such a bridge beam 5 is erected on the sound tunnel 7, it is more conducive to transmitting vibration through the sound tunnel 7, so as to be more conducive to the resonance and rapid vibration response of the diaphragm 4.

[0051] Preferably, when the diaphragm 4 is horizontal, a center line of the bridge beam 5 in the up-down direction overlaps with a center line of the diaphragm 4 in the up-down direction.

[0052] Preferably, the diaphragm 4 is further provided with a plurality of grooves 9, and the grooves 9 are arranged radially, so as to improve the structural strength of the diaphragm 4. The grooves 9 can be designed to be straight to avoid interference with sound tunneling.

[0053] Each of the grooves 6 is an arc-shaped groove, which can minimize the thickness change of the diaphragm 4 to avoid affecting the resonance and vibration of the diaphragm 4. The length of the groove 6 is smaller than the length of the diaphragm 4 in the vertical direction, and a smooth transition surface is provided between the two outer ends of the groove 6 and the upper surface of the diaphragm 4.

[0054] The following is an explanation of other implementations and structural changes of the present invention:

[0055] 1. In the above embodiments, the electronic product speaker shown in the figure is only used as an example for illustration, and its structure is not used to limit the protection scope of the present invention. Other speakers with similar structures that adopt the technical features of the present invention should be covered within the protection scope of the present invention.

[0056] 2. In the above embodiments, a bridge hole 8 is provided on the bridge-type sound beam 5, but the present invention is not limited to this. The bridge hole 8 may not be provided, or other structures similar to the bridge hole 8 that facilitate the transmission of vibration through the sound tunnel may be provided, which is easily understood and accepted by those skilled in the art.

[0057] 3. In the above embodiments, the number of the bridge-type sound beams 5 is not limited to one, and may also be a plurality of parallel or other designs that help to strengthen the load on the middle part of the diaphragm 4, which is easily understood and accepted by those skilled in the art.

[0058] 5. In the above embodiments, the groove 6 is an arc-shaped groove. However, the present invention is not limited thereto, and the groove can be designed into other shapes, such as V-shaped, U-shaped, W-shaped and other concave structures. This is easily understood and accepted by those skilled in the art.

[0059] 6. In the above embodiments, the material of the diaphragm 4 can be metal material, carbon fiber material, composite material or paper material, etc.

[0060] Compared with the prior art, in order to solve the problem that the existing speakers of electronic products cannot take into account the high, medium and low ranges and have good resonance timbre, the present invention improves the existing speakers, especially the diaphragm design in the speakers. Specifically, it is embodied in the following aspects: first, a bridge-type sound beam is set on the upper surface of the diaphragm; second, a cross-shaped groove is opened on the upper surface of the diaphragm, and the cross-shaped groove forms a cross-shaped sound tunnel on the upper surface of the diaphragm.

[0061] The present invention aims at the problem that the treble region of existing electronic product speakers is not bright, and the bass region is not thick and round enough, and conducts in-depth discussion and research on the design and sound generation mechanism of the speakers, and finds out that the main reason for the poor timbre of the treble and bass regions of existing speakers is due to the unreasonable design of the diaphragm. Based on this, the inventor broke the constraints of the previous speaker composition design and boldly proposed the improved design scheme of the present invention, which changes the diaphragm from the previous free vibration mode to the current standard vibration mode, and solves the problem that the treble region of electronic product speakers is not bright, and the bass region is not thick and round enough from the perspective of vibration, resonance, and sound generation, and improves the fidelity of the sound in each frequency band. Practice has proved that the improved design scheme has outstanding substantive characteristics and significant technical progress, and has achieved obvious technical effects.

[0062] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A full-band high-quality electronic product speaker with a sound beam and a sound tunnel, characterized in that: It comprises a voice coil (1), a metal plate (2), a diaphragm (4) and a magnetic conductive structure; the diaphragm (4) is ring-shaped, its outer edge is connected to the outer frame of the loudspeaker, its inner edge is connected to the outer periphery of the metal plate (2), and the middle part of the metal plate (2) is arranged corresponding to the upper end of the voice coil (1); The diaphragm (4) is provided with a bridge-type sound beam (5), which is annular and mounted on the upper surface of the inner edge of the diaphragm (4) and is located outside the metal plate (2) in the horizontal direction of the speaker; Four grooves (6) are provided on the upper surface of the diaphragm (4), the extension lines of each groove (6) intersect at the center of the diaphragm in the horizontal direction, and two adjacent grooves (6) are arranged at 90 degrees to each other; the surface of the diaphragm (4) located outside the bridge-type sound beam (5) is equally divided into four resonance areas (7) by each groove (6); each groove (6) crosses the bridge-type sound beam (5) in the horizontal direction of the speaker, and is perpendicular to the bridge-type sound beam (5) in the length direction of the groove (6); Wherein, the groove (6) is recessed on the upper surface of the diaphragm (4) to form a sound tunnel; The wall thickness of the diaphragm (4) gradually increases from the outside to the inside, and the wall thickness of the bass region is greater than that of the mid-range region, and the wall thickness of the mid-range region is greater than that of the treble region.

2. The full-band high-quality electronic product speaker according to claim 1, characterized in that: A bridge hole (8) is provided at the bottom of the bridge-type sound beam (5), and the bridge hole (8) is arranged to penetrate in the width direction of the bridge-type sound beam (5), and the lower opening of the bridge hole (8) corresponds to the groove (6).

3. The full-band high-quality electronic product speaker according to claim 1, characterized in that: When the diaphragm (4) is horizontal, the center line of the bridge-type sound beam (5) in the up-down direction overlaps with the center line of the diaphragm (4) in the up-down direction.

4. The full-band high-quality electronic product speaker according to claim 1, characterized in that: Each of the grooves (6) is an arc-shaped groove.

5. The full-band high-quality electronic product speaker according to claim 1, characterized in that: The length of the groove (6) is smaller than the width of the diaphragm (4), and smooth transition surfaces are provided between the two outer ends of the groove (6) and the upper surface of the diaphragm (4).

6. The full-band high-quality electronic product speaker according to claim 1, characterized in that: The diaphragm (4) is divided into a high-pitched area in an outer section, a mid-pitched area in a middle section, and a low-pitched area in an inner section in terms of the sound emission band; the bridge-type sound beam (5) is located in the low-pitched area.

7. The full-band high-quality electronic product speaker according to claim 1, characterized in that: The diaphragm (4) is also provided with a plurality of grooves (9), and the grooves (9) are arranged radially.

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