A 360-degree full-range full-frequency loudspeaker and its vibration diaphragm

Abstract

A 360-degree omnidirectional full-range loudspeaker and its vibration diaphragm, the loudspeaker includes a lantern-shaped diaphragm, the lantern-shaped diaphragm is mainly composed of a group of vibration diaphragms evenly arranged around the central axis of the lantern shape, the main body of the vibration diaphragm is a curved sheet, characterized in that: double sound beams are fixedly arranged in parallel on the inner concave surface of the sheet, and transverse grooves and longitudinal grooves are opened on the inner concave surface of the sheet, the transverse grooves and the longitudinal grooves are cross-arranged on the inner concave surface of the sheet and interpenetrate each other, and form a cross-shaped sound tunnel. This solution solves the problem that the original 360-degree omnidirectional loudspeaker is not suitable for full-frequency (wideband) vibration, and now a 360-degree omnidirectional full-range loudspeaker can replace the original combination of high, medium and low-frequency 360-degree omnidirectional loudspeakers, and can even replace the subwoofer at the same time to obtain the effect.

Description

Technical Field

[0001] The invention relates to an electroacoustic device, in particular to a 360-degree omnidirectional full-frequency loudspeaker and a vibration diaphragm thereof. Background Art

[0002] As we all know, a speaker is a common electronic and electrical sound-generating device. Its working principle is to restore the electrical signal containing sound information into a sound signal. As an important component of the sound output end of electronic products, speakers are widely used in people's life, work and entertainment.

[0003] At present, commonly used speakers generally include a magnetic circuit system, a drive system, and a sound transmission system. Traditional sound transmission systems can generally only transmit sound in one direction. When sound transmission in all directions is required, multiple speakers need to be installed at the same time and arranged in all directions. Although this setting can solve the problem of simultaneous sound transmission in multiple directions, it will cause mutual interference between the speakers, resulting in poor synchronization and a lot of noise.

[0004] In order to solve the problem of 360-degree synchronous sound transmission of speakers, a specific representative 360-degree omnidirectional speaker has appeared on the market in recent years, such as the new super flagship launched by Germany's top Hi-End audio brand MBL: 360-degree sound system 101 extreme. The sound system consists of two parts: a high-power audio amplifier (drive system) and a speaker system, and the speaker system consists of a pair of 360-degree omnidirectional speaker groups (two identical 360-degree omnidirectional speaker groups) and a pair of subwoofers. Among them, each 360-degree omnidirectional speaker group, see attached Figure 1-2 As shown, it mainly consists of a frame 1, two high-frequency 360-degree omnidirectional speakers 2, two mid-range 360-degree omnidirectional speakers 3 and two low-frequency 360-degree omnidirectional speakers 4 (see Figure 1 ). These 360-degree omnidirectional speakers take the center of the frame 1 as the base point, and one group of high, medium and low-frequency 360-degree omnidirectional speakers are arranged vertically from the base point from bottom to top, and another group of high, medium and low-frequency 360-degree omnidirectional speakers are arranged vertically from the base point from top to bottom (see Figure 2 ), and the diaphragm of each 360-degree omnidirectional speaker (regardless of high, medium, or low frequency) is a lantern-shaped diaphragm (shaped like a "lantern"), that is, a group of curved vibration diaphragms 14 (see Figure 3-5 ) are evenly arranged around the vertical axis of the lantern shape (see Figure 6 ), wherein one end of the lantern-shaped diaphragm serves as the fixed end of the loudspeaker diaphragm, and the other end of the lantern-shaped diaphragm serves as the driving end of the loudspeaker diaphragm. The fixed end of the lantern-shaped diaphragm is fixed relative to the central support 5 (see Figure 2), the driving end is connected to the central support 5 through the cooperation of the coil and the magnet (see Figure 2 The high and medium pitch curved vibration diaphragms 14 are made of graphite fiber sheets, and the bass curved vibration diaphragms 14 are made of alloy aluminum sheets. The outer shape of the vibration diaphragm 14 is leaf-shaped, and the vibration diaphragm 14 is provided with reinforcing ribs 15 (see Figure 3-Figure 5 ). The pair of subwoofers is composed of two sets of active (built-in power amplifier) ​​ultra-low frequency arrays, one on the left and one on the right, both of which are square columns with a total of 4 built-in 12-inch ultra-low frequency units.

[0005] The above 360-degree omnidirectional speakers were a revolutionary design for speakers at the time! As we all know, the real performance effect when listening to music in a concert hall includes direct sound, reflected sound, complex and rich overtones, etc. The above 360-degree sound system 101 extreme was launched because traditional speakers cannot create a full range of sound effects and it is difficult to produce a real feeling like being on the scene. The 360-degree omnidirectional speakers reproduce the live performance of the symphony orchestra in the living room. To this day, MBL's 360-degree omnidirectional speakers are still recognized as the world's best.

[0006] However, the above 360-degree omnidirectional speaker group requires 360-degree omnidirectional speakers with different frequencies of treble, midrange and bass to be used in segmented combination, and even needs to be equipped with a subwoofer. Although this design has a very good sound effect, it has the disadvantages of complex structure and high manufacturing cost.

[0007] In view of this, how to improve the existing 360-degree omnidirectional loudspeaker to simplify the structure and reduce the cost is the research topic of the present invention. Summary of the invention

[0008] The present invention provides a 360-degree omnidirectional full-range loudspeaker and a vibration diaphragm thereof, the purpose of which is to solve the problem that the existing 360-degree omnidirectional loudspeaker is not suitable for full-frequency (wideband) vibration and requires a segmented combination of high, medium and low-frequency 360-degree omnidirectional loudspeakers, which leads to a complex structure and high manufacturing cost.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the vibrating diaphragm of the present invention is: a vibrating diaphragm of a 360-degree omnidirectional full-range speaker, the main body of the vibrating diaphragm is a curved sheet body, and the curved sheet body has an inner concave surface and an outer convex surface, and its innovation lies in:

[0010] Two sound beams are arranged on the inner concave surface of the sheet body. The sound beams are long strip-shaped sound beam components. One side of the two sound beams is tightly fixed on the inner concave surface of the sheet body, and the other sides of the two sound beams are suspended. The length direction of the two sound beams is consistent with the length direction of the sheet body. In the width direction of the sheet body, the two sound beams are parallel and separated by a distance.

[0011] A transverse groove and a longitudinal groove are provided on the inner concave surface of the sheet body, and the transverse groove and the longitudinal groove are cross-arranged and interconnected on the inner concave surface of the sheet body, wherein the longitudinal groove is located between two sound beams, and the length direction of the longitudinal groove is consistent with the length direction of the sound beam; the transverse groove spans the two sound beams in the width direction of the sheet body and forms a transverse sound tunnel on the inner concave surface of the sheet body, and the longitudinal groove forms a longitudinal sound tunnel on the inner concave surface of the sheet body.

[0012] The relevant contents in the above technical solution are explained as follows:

[0013] 1. In the above solution, the shape of the sheet body can be leaf-shaped or long strip-shaped.

[0014] 2. In the above scheme, a support is provided at the intersection of the transverse groove and the sound beam, one end of the support is against the bottom of the transverse groove, and the other end is against the sound beam.

[0015] 3. In the above scheme, a bridge hole may be provided on the sound beam, the bridge hole is a hole on one side of the sound beam and enables the sound beam to form a bridge-type sound beam structure, and the bridge hole is erected on the transverse groove.

[0016] 4. In the above solution, a reinforcing plate may be fixedly mounted between the two sound beams.

[0017] 5. In the above scheme, the transverse grooves and the longitudinal grooves are both arc-shaped grooves.

[0018] To achieve the above-mentioned purpose, the technical solution adopted by the full-range speaker of the present invention is: a 360-degree omnidirectional full-range speaker, including a lantern-shaped diaphragm, the shape of which is similar to a lantern, and the lantern-shaped diaphragm is mainly composed of a group of vibration diaphragms evenly arranged around the central axis of the lantern shape, one end of the lantern-shaped diaphragm serves as the fixed end of the speaker diaphragm, and the other end of the lantern-shaped diaphragm serves as the driving end of the speaker diaphragm.

[0019] The main body of the vibration diaphragm is a curved sheet body, and the curved sheet body has an inner concave surface and an outer convex surface. The innovation is:

[0020] Two sound beams are arranged on the inner concave surface of the sheet body. The sound beams are long strip-shaped sound beam components. One side of the two sound beams is tightly fixed on the inner concave surface of the sheet body, and the other sides of the two sound beams are suspended. The length direction of the two sound beams is consistent with the length direction of the sheet body. In the width direction of the sheet body, the two sound beams are parallel and separated by a distance.

[0021] A transverse groove and a longitudinal groove are provided on the inner concave surface of the sheet body, and the transverse groove and the longitudinal groove are cross-arranged and interconnected on the inner concave surface of the sheet body, wherein the longitudinal groove is located between two sound beams, and the length direction of the longitudinal groove is consistent with the length direction of the sound beam; the transverse groove spans the two sound beams in the width direction of the sheet body and forms a transverse sound tunnel on the inner concave surface of the sheet body, and the longitudinal groove forms a longitudinal sound tunnel on the inner concave surface of the sheet body.

[0022] The relevant contents in the above technical solution are explained as follows:

[0023] 1. In the above scheme, the theme is "a 360-degree full-range full-range speaker" and the innovation is concentrated on the lantern-shaped diaphragm, so other structures other than the lantern-shaped diaphragm, such as the center pillar, coil, magnet, and the structure and connection method of the fixed end and the driving end of the lantern-shaped diaphragm, are not described. It can be considered that other structures of the full-range speaker of the present invention except the lantern-shaped diaphragm are realized by using existing technologies.

[0024] 2. In the above solution, a gap may be left between two adjacent vibration diaphragms in the direction of the central axis surrounding the lantern shape, and a flexible connecting sheet is provided in the gap, and the flexible connecting sheet is connected between the two adjacent vibration diaphragms.

[0025] The design principle and concept of the present invention are: in order to solve the problem that the existing 360-degree omnidirectional speakers are not suitable for full-frequency (wideband) vibration, the present invention improves the lantern-shaped diaphragm of the existing 360-degree omnidirectional speakers, especially the vibration diaphragm in the lantern-shaped diaphragm. It is specifically embodied in the following two aspects: first, a double sound beam structure is designed on the inner concave surface of the original curved sheet body; second, a cross-shaped groove (i.e., a transverse groove and a longitudinal groove) is opened on the inner concave surface of the original curved sheet body, and the cross-shaped groove forms a cross-shaped sound tunnel (i.e., a transverse sound tunnel and a longitudinal sound tunnel) on the inner concave surface of the sheet body. In view of the problem that the existing 360-degree omnidirectional speakers are not suitable for full-frequency (wideband) vibration, the present invention conducts in-depth discussion and research on the design and sound generation mechanism of the lantern-shaped diaphragm, and finds out that the main reason why the existing lantern-shaped diaphragm is not suitable for full-frequency (wideband) vibration is that the existing vibration diaphragm itself cannot bear full-frequency (wideband) vibration. Based on this, the inventor broke the constraints of the original vibration diaphragm design and boldly proposed the improved design of the present invention. This improved design changes the free vibration mode of the original vibration diaphragm into the current standard vibration mode, and solves the problem that the lantern-shaped diaphragm and its vibration diaphragm are not suitable for full-frequency (wideband) vibration from the perspective of vibration, resonance, and sound generation. Practice has proved that the improved design has outstanding substantive characteristics and significant technical progress, and has achieved obvious technical effects. After the improvement, the 360-degree omnidirectional speaker of the present invention can replace the sound effects of the original combination of a 360-degree omnidirectional speaker for high pitch, a 360-degree omnidirectional speaker for midrange, and a 360-degree omnidirectional speaker for bass, and can even replace the effect of a subwoofer at the same time.

[0026] Due to the application of the above technical solution, the present invention has the following advantages and effects compared with the existing 360-degree omnidirectional speakers:

[0027] 1. In the present invention, a double-beam structure is arranged on each vibrating diaphragm in the lantern-shaped diaphragm (i.e., two beams are fixed and arranged in parallel on the inner concave surface of the vibrating 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 vibrating diaphragm, and the treble resonance is concentrated in the edge area of ​​the vibrating diaphragm. Strengthening the strength of the central area of ​​the vibrating diaphragm plays an important role in improving the timbre and sound quality of the bass area, as well as increasing the volume and penetration. Since the thickness of the vibrating diaphragm is a gradual thickness structure with a thick central area and a thin edge, the strength of the central area of ​​the vibrating diaphragm is strengthened, and the thickness difference between the central area and the edge area of ​​the vibrating diaphragm is relatively changed, which also plays a good role in improving the timbre and sound quality of the treble area, as well as increasing the volume and penetration.

[0028] 2. The present invention provides a cross-shaped groove (i.e., a transverse groove and a longitudinal groove) on the inner concave surface of the vibrating diaphragm, and the cross-shaped groove actually forms a cross-shaped sound tunnel on the inner concave surface of the vibrating diaphragm. Since the bass has a larger amplitude and a lower frequency than the treble, the bass resonance is concentrated in the central area of ​​the vibrating diaphragm, and the treble resonance is concentrated in the edge area of ​​the vibrating diaphragm. The vibration of the vibrating diaphragm is collected by the cross center area of ​​the sound tunnel and quickly transmitted to the edge of the vibrating diaphragm 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 treble area, as well as increasing the volume and penetration, and also plays a good role in improving the timbre and volume of the bass area, as well as increasing the volume and penetration.

[0029] 3. The present invention designs the sound beam into a bridge-type sound beam structure, especially a hole 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 transmitting vibration through the sound tunnel and also more conducive to the vibration diaphragm to resonate.

[0030] 4. The present invention adopts a combination design of double sound beams and cross sound tunnels on the inner concave surface of the vibrating diaphragm, and divides one sheet into four resonance areas when looking directly at the vibrating diaphragm. When the vibrating diaphragm is working, the vibration is first collected by the cross center area of ​​the cross sound tunnel, and then transmitted to the four resonance areas through the cross sound tunnel, and resonance and vibration are generated, thereby amplifying the vibration into the resonance sound of the vibrating diaphragm, thereby amplifying the vibration of the external sound source into the resonance of the vibrating diaphragm. Before the improvement, each vibrating diaphragm can only generate one sound wave when vibrating, that is, there is only one resonance area, and each resonance area generates one sound wave, plus one original sound wave, totaling two sound waves. After the improvement, each vibrating diaphragm of the present invention can generate five sound waves when working, among which four resonance areas generate four sound waves, plus one original sound wave, totaling five sound waves. The sound wave quantity is the number of sound waves. For a specific vibrating diaphragm, in addition to the original sound wave quantity, it mainly depends on the number of resonance areas on the vibrating diaphragm. Usually, each resonance area generates a sound wave quantity, and the number of sound waves generated depends on the number of resonance areas. In addition, the sound wave quantity directly affects the timbre, penetration and volume of the instrument. Therefore, the design of the present invention can significantly improve the timbre of the high and low pitch areas, and increase the penetration and volume of the high and low pitch areas.

[0031] 5. The present invention fixes a reinforcing plate between two sound beams, which can increase the strength of the middle area of ​​the vibrating diaphragm, especially between the sound beams, and increase the load when the two sound beams resonate, further improving the timbre, penetration and volume of the bass area. On the other hand, the central area of ​​the vibrating diaphragm is strengthened, and the strength gap between the central area and the edge area is relatively widened, which is also conducive to improving the timbre, penetration and volume of the treble area.

[0032] 6. The transverse grooves and the longitudinal grooves of the present invention are both arc-shaped grooves, which can minimize the thickness mutation of the vibration diaphragm and affect the resonance and vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Attached Figure 1 It is a three-dimensional schematic diagram of an existing 360-degree omnidirectional speaker group;

[0034] Attached Figure 2 It is a structural schematic diagram of the speaker part in the existing 360-degree omnidirectional speaker group;

[0035] Attached Figure 3 It is a front view of a leaf-shaped vibration diaphragm in an existing 360-degree omnidirectional speaker;

[0036] Attached Figure 4 for Figure 3 Left view of

[0037] Attached Figure 5 for Figure 3 AA section view;

[0038] Attached Figure 6 This is a cross-sectional view of a vibrating diaphragm of an existing 360-degree omnidirectional speaker when viewed from above;

[0039] Attached Figure 7 for Figure 6 The enlarged view of point D;

[0040] Attached Figure 8 This is a schematic diagram of the structure of a 360-degree omnidirectional speaker group according to an embodiment of the present invention;

[0041] Attached Fig. 9 This is a cross-sectional view of a 360-degree omnidirectional speaker group according to an embodiment of the present invention;

[0042] Attached Fig.10 This is a front view of a leaf-shaped vibrating diaphragm according to an embodiment of the present invention;

[0043] Attached Fig.11 for Fig.10 Left view of

[0044] Attached Fig.12 for Fig.10 BB cross-section diagram;

[0045] Attached Fig.13 This is a cross-sectional view of a vibrating diaphragm of a 360-degree omnidirectional speaker according to an embodiment of the present invention when viewed from above;

[0046] Attached Fig.14 for Fig.13 The enlarged view of point E;

[0047] Attached Fig.15 This is a front view of a long strip vibrating diaphragm according to an embodiment of the present invention;

[0048] Attached Fig.16 for Fig.15 Left view of

[0049] Attached Fig.17 for Fig.15 CC cross-section diagram.

[0050] In the above drawings: 1. Frame; 2. 360-degree omnidirectional tweeter; 3. 360-degree omnidirectional midrange speaker; 4. 360-degree omnidirectional bass speaker; 5. Center pillar; 6. Tweeter coil; 7. Tweeter magnet; 8. Magnet seat; 9. Small pillar; 10. Midrange coil; 11. Midrange magnet; 12. Bass coil; 13. Bass magnet; 14. Vibrating diaphragm; 15. Reinforcement rib; 16. Flexible connecting piece; 17. 360-degree omnidirectional full-range speaker; 18. Full-range coil; 19. Full-range magnet; 20. Base; 21. Top seat; 22. Longitudinal pillar; 23. Horizontal pillar; 24. Leaf-shaped full-range vibration diaphragm; 25. Fixed seat; 26. Sound beam; 27. Horizontal groove; 28. Longitudinal groove; 29. ​​Bridge hole; 30. Strip-shaped full-range vibration diaphragm. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0052] Embodiment: A 360-degree full-range full-range loudspeaker (including a vibrating diaphragm)

[0053] A lot of technical information such as structural design has been provided in the background technology introduction and the prior art about the 360-degree omnidirectional speaker. Since the innovation of the present invention is concentrated on the lantern-shaped diaphragm and its vibration membrane, other structures and changes except the lantern-shaped diaphragm and its vibration membrane are not described in detail in this embodiment. It can be considered that other structures except the lantern-shaped diaphragm in the full-range speaker of the present invention can be realized by using the prior art.

[0054] This embodiment uses Figure 8-Figure 14 Take the 360-degree full-range speaker of the present invention as an example:

[0055] like Figure 8-Figure 14 As shown, a 360-degree omnidirectional full-range speaker group is composed of two 360-degree omnidirectional full-range speakers (the two 360-degree omnidirectional full-range speakers can be the same size or different sizes. In this embodiment, the same size is used as an example). The two 360-degree omnidirectional full-range speakers are arranged up and down in a frame (see Figure 8 and Fig. 9 The frame is composed of a top seat 21, a base 20, four longitudinal pillars 22, and two transverse pillars 23 (see Figure 8 and Fig. 9 ). A central pillar 5 is provided at the center of the frame, and the central pillar 5 is arranged on the central axis of the upper and lower 360-degree full-range full-range speakers.

[0056] The upper 360-degree full-range speaker has a lantern-shaped diaphragm (shaped like a lantern), the lower end of which is the fixed end of the speaker diaphragm, and the upper end is the driving end of the speaker diaphragm, wherein the fixed end is fixed relative to the fixing seat 25, and the driving end is connected to the top seat 21 through the full-range coil 18 and the full-range magnet 19. The fixing seat 25 is fixedly positioned at the intersection of the transverse support 23 and the central support 5 (see Figure 8 and Fig. 9 ).

[0057] The 360-degree full-range speaker below has a lantern-shaped diaphragm (shaped like a lantern), the upper end of which is used as the fixed end of the speaker diaphragm, and the lower end is used as the driving end of the speaker diaphragm, wherein the fixed end is fixed relative to the fixing seat 25, and the driving end is connected to the base 20 through the full-range coil 18 and the full-range magnet 19. The fixing seat 25 is fixedly positioned at the intersection of the transverse support 23 and the central support 5 (see Figure 8 and Fig. 9 ).

[0058] In any 360-degree omnidirectional full-range loudspeaker of this embodiment, the lantern-shaped diaphragm is composed of 10 leaf-shaped full-range vibration diaphragms 24 evenly arranged around the central axis of the lantern shape, and a gap is left between any two adjacent leaf-shaped full-range vibration diaphragms 24, and a flexible connecting piece 16 is provided at the gap, and the flexible connecting piece 16 is connected between the two adjacent leaf-shaped full-range vibration diaphragms 24 (see Fig.13 and Fig.14 ).

[0059] The main body of the leaf-shaped full-frequency vibration diaphragm 24 is a curved sheet (see Figure 10-12 ), the curved sheet has an inner concave surface and an outer convex surface.

[0060] Two sound beams 26 are arranged on the inner concave surface of the sheet body (see Figure 10-12 ), the sound beam 26 is a long strip sound beam component, one side of the two sound beams 26 is tightly fixed on the inner concave surface of the sheet body, and the other side of the two sound beams 26 is suspended, the length direction of the two sound beams 26 is consistent with the length direction of the sheet body, and the two sound beams 26 are parallel and separated by a distance in the width direction of the sheet body. The sheet body and the two sound beams 26 can be an integrally formed structure, or they can be separated first and then fixedly connected into one. The material of the leaf-shaped full-range vibration diaphragm 24 can be selected from graphite carbon fiber, alloy aluminum, etc.

[0061] A transverse groove 27 and a longitudinal groove 28 are provided on the inner concave surface of the sheet body (see Figure 10-12 ), the transverse grooves 27 and the longitudinal grooves 28 are cross-arranged on the inner concave surface of the sheet body and interpenetrate each other, wherein the longitudinal grooves 28 are located between the two sound beams 26, and the length direction of the longitudinal grooves 28 is consistent with the length direction of the sound beams 26; the transverse grooves 27 span the two sound beams 26 in the width direction of the sheet body and form a transverse sound tunnel on the inner concave surface of the sheet body, and the longitudinal grooves 28 form a longitudinal sound tunnel on the inner concave surface of the sheet body.

[0062] The sound beam 26 is provided with a bridge hole 29 (see Fig.11 ), the bridge hole 29 is a hole on one side of the sound beam 26 so that the sound beam 26 forms a bridge-type sound beam structure, and the bridge hole 29 is mounted on the transverse groove 27. A support (not shown in the figure) is arranged at the intersection of the transverse groove 27 and the sound beam 26, one end of the support is against the bottom of the transverse groove 27, and the other end is against the sound beam 26. A reinforcing plate (not shown in the figure) is fixedly mounted between the two sound beams 26.

[0063] The length of the transverse groove 27 is smaller than the length of the sheet body at the corresponding position of the transverse groove 27, and smooth transition surfaces are provided between the two ends of the transverse groove 27 and the inner concave surface of the sheet body (see Fig.10 The length of the longitudinal groove 28 is smaller than the length of the sheet body at the corresponding position of the longitudinal groove 28. Smooth transition surfaces are provided between the two ends of the longitudinal groove 28 and the inner concave surface of the sheet body (see Fig.10 ). The transverse groove 27 and the longitudinal groove 28 are both arc-shaped grooves.

[0064] The following is an explanation of other implementations and structural changes of the present invention:

[0065] 1. In the above embodiments, two 360-degree omnidirectional full-range speakers are provided above and below the frame. However, the present invention is not limited thereto. It is also possible to provide one 360-degree omnidirectional full-range speaker in the frame, or even three or more speakers. The present invention provides at least one 360-degree omnidirectional full-range speaker in terms of quantity. This is easily understood and accepted by those skilled in the art.

[0066] 2. In the above embodiment, the vibrating diaphragm used in the lantern-shaped diaphragm is a leaf-shaped full-range vibrating diaphragm 24 (see Figure 10-12 However, the present invention is not limited thereto and a strip-shaped full-frequency vibration diaphragm 30 (see Figure 15-17 ) to replace the leaf-shaped full-frequency vibration diaphragm 24 is also a feasible solution, and can achieve equivalent technical effects. This is easy to understand and accept by those skilled in the art.

[0067] 3. In the above embodiments, a double sound beam structure is provided on the inner concave surface of the sheet body. That is, two sound beams 26 are provided on the inner concave surface of the sheet body. However, the present invention is not limited thereto, and the two sound beams 26 can be changed in form to four sound beams 26 used in parallel. For the present invention, although the four sound beams 26 and the two sound beams 26 are different in number and form, they are essentially the same. Assuming that the two outer sound beams of the four sound beams 26 are close to the two inner sound beams, it can be equivalent to a double sound beam. Therefore, it can be considered that this change does not bring unexpected effects and should be understood as being substantially equivalent. This is easy to understand for those skilled in the art.

[0068] 4. In the above embodiments, Fig.10 In the figure, two sound beams 26 are arranged parallel to each other on the inner concave surface of the sheet body. However, the present invention is not limited to this, and the two sound beams 26 do not have to be parallel, but parallel arrangement is the best, which is easily understood and accepted by those skilled in the art.

[0069] 5. In the above embodiments, a support (not shown in the figure) is provided at the intersection of the transverse groove 27 and the sound beam 26. However, the present invention is not limited thereto, and the support may not be provided. This is easily understood and accepted by those skilled in the art.

[0070] 6. In the above embodiment, a bridge hole 29 is provided on the sound beam 26. However, the present invention is not limited thereto, and the bridge hole 29 may not be provided. This is easily understood and accepted by those skilled in the art.

[0071] 7. In the above embodiment, a reinforcing plate (not shown in the figure) is fixedly mounted between the two sound beams 26. However, the present invention is not limited to this, and the reinforcing plate may not be provided. The reinforcing plate can increase the strength of the middle area of ​​the concave surface of the plate, especially the strength between the sound beams, and can increase the load when the two sound beams resonate.

[0072] 8. In the above embodiments, the transverse grooves 27 and the longitudinal grooves 28 are arc-shaped grooves. However, the present invention is not limited thereto, and the grooves 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.

[0073] 10. In the above embodiment, the two sound beams 26 have the same shape and size (see Figure 10-12 ). However, the present invention is not limited thereto, and the shapes and sizes of the two sound beams 26 may be different. This is easily understood and accepted by those skilled in the art.

[0074] 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 vibrating diaphragm for a 360-degree omnidirectional full-range loudspeaker, wherein the main body of the vibrating diaphragm is a curved sheet body, the curved sheet body has an inner concave surface and an outer convex surface, and is characterized in that: Two sound beams (26) are provided on the inner concave surface of the sheet body, the sound beams (26) are long strip-shaped sound beam components, one side of the two sound beams (26) is tightly fixed on the inner concave surface of the sheet body, and the other sides of the two sound beams (26) are suspended in the air, the length direction of the two sound beams (26) is consistent with the length direction of the sheet body, and the two sound beams (26) are arranged in parallel and separated by a distance in the width direction of the sheet body; A transverse groove (27) and a longitudinal groove (28) are provided on the inner concave surface of the sheet body. The transverse groove (27) and the longitudinal groove (28) are arranged crosswise on the inner concave surface of the sheet body and are interpenetrating with each other, wherein the longitudinal groove (28) is located between two sound beams (26), and the length direction of the longitudinal groove (28) is consistent with the length direction of the sound beam (26); the transverse groove (27) spans the two sound beams (26) in the width direction of the sheet body and forms a transverse sound tunnel on the inner concave surface of the sheet body, and the longitudinal groove (28) forms a longitudinal sound tunnel on the inner concave surface of the sheet body.

2. The vibrating diaphragm according to claim 1, characterized in that: The sheet body has a leaf shape or a long strip shape.

3. The vibrating diaphragm according to claim 1, characterized in that: A support is provided at the intersection of the transverse groove (27) and the sound beam (26), one end of the support is against the bottom of the transverse groove (27), and the other end is against the sound beam (26).

4. The vibrating diaphragm according to claim 1, characterized in that: The sound beam (26) is provided with a bridge hole (29), the bridge hole (29) is a hole on one side of the sound beam (26) and enables the sound beam (26) to form a bridge-type sound beam structure, and the bridge hole (29) is mounted on the transverse groove (27).

5. The vibrating diaphragm according to claim 1, characterized in that: A reinforcing plate is fixedly mounted between the two sound beams (26).

6. The vibrating diaphragm according to claim 1, characterized in that: The length of the transverse groove (27) is smaller than the length of the sheet body at a position corresponding to the transverse groove (27), and the connection portions between the two ends of the transverse groove (27) and the inner concave surface of the sheet body are both provided with smooth transition surfaces; the length of the longitudinal groove (28) is smaller than the length of the sheet body at a position corresponding to the longitudinal groove (28), and the connection portions between the two ends of the longitudinal groove (28) and the inner concave surface of the sheet body are both provided with smooth transition surfaces.

7. The vibrating diaphragm according to claim 1, characterized in that: The transverse groove (27) and the longitudinal groove (28) are both arc-shaped grooves.

8. A 360-degree omnidirectional full-range loudspeaker, comprising a lantern-shaped diaphragm, the shape of which is similar to a lantern, the lantern-shaped diaphragm being composed of a group of vibration diaphragms evenly arranged around the central axis of the lantern shape, one end of the lantern-shaped diaphragm being used as a fixed end of the loudspeaker diaphragm, and the other end of the lantern-shaped diaphragm being used as a driving end of the loudspeaker diaphragm; The main body of the vibration diaphragm is a curved sheet body having an inner concave surface and an outer convex surface, and is characterized in that: Two sound beams (26) are provided on the inner concave surface of the sheet body, the sound beams (26) are long strip-shaped sound beam components, one side of the two sound beams (26) is tightly fixed on the inner concave surface of the sheet body, and the other sides of the two sound beams (26) are suspended in the air, the length direction of the two sound beams (26) is consistent with the length direction of the sheet body, and the two sound beams (26) are arranged in parallel and separated by a distance in the width direction of the sheet body; A transverse groove (27) and a longitudinal groove (28) are provided on the inner concave surface of the sheet body. The transverse groove (27) and the longitudinal groove (28) are arranged crosswise on the inner concave surface of the sheet body and are interpenetrating with each other, wherein the longitudinal groove (28) is located between two sound beams (26), and the length direction of the longitudinal groove (28) is consistent with the length direction of the sound beam (26); the transverse groove (27) spans the two sound beams (26) in the width direction of the sheet body and forms a transverse sound tunnel on the inner concave surface of the sheet body, and the longitudinal groove (28) forms a longitudinal sound tunnel on the inner concave surface of the sheet body.

9. The 360-degree omnidirectional full-range loudspeaker according to claim 8, characterized in that: In the direction of the central axis surrounding the lantern shape, a gap is left between two adjacent vibration diaphragms, and a flexible connecting sheet (16) is provided at the gap, and the flexible connecting sheet (16) is connected between the two adjacent vibration diaphragms.

Images