Loudspeaker structure and loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker structure and a loudspeaker. The loudspeaker structure comprises a base, a sound amplifying seat and a vibrating diaphragm, the sound amplifying seat covers the base, so that a sound outlet cavity is defined by the sound amplifying seat and the base, a plurality of sound inlets are formed in one side, facing the base, of the sound amplifying seat, and the sound inlets are communicated with the sound cavity; the plurality of sound inlets are arranged around the center of the sound amplification seat; the vibrating diaphragm is arranged on one side, facing the base, of the sound amplification seat and comprises an annular folding part, and the annular folding part is positioned in the sound cavity and is arranged in front of the plurality of sound inlets in a blocking manner; and the annular folding part is used for being matched with the moving coil unit to vibrate. The loudspeaker structure can improve the propagation accuracy of sound waves in the loudspeaker structure, and effectively improves the sound amplification effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field, especially a loudspeaker structure and loudspeaker. BACKGROUND

[0002] The loudspeaker of prior art usually includes a sound cavity and a sound amplification channel. The sound cavity and the sound amplification channel are connected through an input sound port. The sound cavity is used for accommodating a magnetic coil unit and a diaphragm. The diaphragm divides the sound cavity into two parts. The magnetic coil unit is connected to the diaphragm. The magnetic coil unit changes its own magnetic field by inputting audio current to drive the diaphragm to vibrate and excite air to generate sound waves. These sound waves enter the sound amplification channel through the input sound port and then are transmitted to the outside to achieve the sound amplification effect.

[0003] However, in the loudspeaker of prior art, there is a relatively large attenuation in the process of transmitting sound waves to the input sound port, which affects the sound amplification effect. SUMMARY

[0004] The utility model embodiment wants to solve the technical problem that the loudspeaker of prior art has a poor sound wave propagation efficiency in the interior and affects the sound amplification effect.

[0005] In a first aspect, the utility model embodiment provides a loudspeaker structure, which comprises:

[0006] a base;

[0007] a sound amplification base, which is arranged on the base to form a sound cavity together with the base. The sound amplification base is provided with a plurality of input sound ports on the side facing the base. The input sound ports are in communication with the sound cavity. The input sound ports are arranged around the center of the sound amplification base.

[0008] a diaphragm, which is arranged on the side of the sound amplification base facing the base. The diaphragm comprises an annular folded part, which is located in the sound cavity and is arranged in front of the input sound ports. The annular folded part is used to cooperate with the moving coil unit to vibrate.

[0009] In an embodiment, the sound amplification base comprises a fixing member, which comprises a sound guide plate and a compression ring. The input sound ports are arranged on the sound guide plate. The compression ring is located between the sound guide plate and the base. The diaphragm comprises an outer ring part, which is arranged on the periphery of the annular folded part. The outer ring part is clamped between the sound guide plate and the compression ring.

[0010] In an embodiment, the diaphragm further comprises an inner ring part, which is arranged on the inner periphery of the annular folded part. The loudspeaker structure further comprises a compression holding member. The inner ring part is clamped between the compression holding member and the sound amplification base.

[0011] In an embodiment, the sound guide plate is provided with a first annular groove on a side facing the compression ring, the compression ring is provided with a second annular groove on a side facing the sound guide plate, the outer ring part is clamped between the first annular groove and the second annular groove, and the first annular groove and the second annular groove each contain a first sealing piece.

[0012] In an embodiment, the sound guide plate is further provided with a third annular groove on a side facing the compression ring, the third annular groove is arranged opposite to the inner ring part, and the third annular groove contains a second sealing piece.

[0013] In an embodiment, a connecting hole is formed through a side of the sound guide plate facing away from the compression ring, and the loudspeaker structure further comprises a screw piece, the screw piece is threaded through the connecting hole to be threadedly connected with the compression ring.

[0014] In an embodiment, a positioning structure is further included, the positioning structure comprises a positioning hole and a positioning pin, the positioning hole is arranged on one of the sound guide plate and the compression ring, the positioning pin is arranged on the other one of the sound guide plate and the compression ring, and the positioning pin is inserted into the positioning hole to limit the compression ring on the sound guide plate.

[0015] In an embodiment, the base is provided with a mounting groove on a side facing the sound amplification seat, the moving coil unit comprises a coil and a magnet, the magnet is contained in the mounting groove, the coil is sleeved at the magnet, and the coil is threaded out of a slot opening of the mounting groove to be connected with the annular folding part.

[0016] In an embodiment, the sound amplification seat comprises an outer peripheral surface, the outer peripheral surface is provided with a notch, a notch wall of the notch is provided with a wire passing hole, the wire passing hole is in communication with the sound cavity, and the loudspeaker structure further comprises a control circuit board and a metal lead sheet, the control circuit board is arranged at the notch, and the wire passing hole is used for threading the metal lead sheet, so that the control circuit board is electrically connected to the coil through the metal lead sheet.

[0017] In a second aspect, the utility model embodiment further provides a loudspeaker. It includes the loudspeaker structure of each embodiment above.

[0018] Compared with the prior art, the loudspeaker structure provided by the utility model embodiment has the beneficial effects that the loudspeaker structure can improve the accuracy of sound wave propagation in itself and effectively improve the sound amplification effect.

[0019] Specifically, the annular folded portion of the diaphragm is positioned at multiple sound inlets, with each sound inlet corresponding to a different part of the annular folded portion. Under the action of the moving coil unit, the entire annular folded portion vibrates, and the sound waves generated by each part can be concentrated and directionally propagated to the corresponding sound inlet, ensuring the accuracy of sound wave propagation, effectively preventing sound waves from deviating or scattering, reducing energy loss during sound wave propagation, improving the efficiency of internal sound wave propagation, and helping to improve sound quality and amplification effect. Attached Figure Description

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. In the accompanying drawings:

[0021] Figure 1 This is one of the cross-sectional internal schematic diagrams of the horn structure provided in this embodiment of the utility model;

[0022] Figure 2 This is a disassembly diagram of the fixing member and diaphragm provided in an embodiment of this utility model;

[0023] Figure 3 yes Figure 1 Enlarged view of a portion of position A in the middle;

[0024] Figure 4 yes Figure 2 Enlarged view of a portion of position B in the middle;

[0025] Figure 5 yes Figure 2 Enlarged view of a portion of position C;

[0026] Figure 6 This is a cross-sectional internal view of the fixing member and diaphragm provided in this embodiment of the utility model;

[0027] Figure 7 yes Figure 6 Enlarged view of a portion of position D;

[0028] Figure 8 yes Figure 6 Enlarged view of a portion of position E in the middle;

[0029] Figure 9 This is a disassembly diagram of the amplifier base and diaphragm provided in an embodiment of this utility model;

[0030] Figure 10 yes Figure 9 Enlarged view of the middle F position;

[0031] Figure 11 This is the second cross-sectional internal schematic diagram of the horn structure provided in this embodiment of the utility model;

[0032] Figure 12 yesFigure 11 A magnified view of the G position in the middle.

[0033] The labels for the attached figures are as follows:

[0034] 1000, horn structure;

[0035] 10. Base; 11. Mounting slot;

[0036] 20. Amplifier base; 21. Sound inlet; 22. Fixing component; 221. Sound guide plate; 2211. First annular groove; 2212. Third annular groove; 2213. Connecting hole; 222. Pressure ring; 2221. Second annular groove; 23. Holding component; 24. Positioning structure; 25. Notch; 251. Wiring hole; 26. Amplification channel; 27. Sound outlet;

[0037] 30. Voice cavity;

[0038] 40. Diaphragm; 41. Annular fold; 42. Outer ring; 43. Inner ring;

[0039] 50. Moving coil unit; 51. Coil; 52. Magnet; 53. Control circuit board; 531. Metal conductor;

[0040] 60. Screws. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0042] This utility model embodiment provides a speaker structure 1000, such as... Figure 1 and Figure 3 As shown, the speaker structure 1000 includes a base 10, a sound amplification base 20, and a diaphragm 40. The sound amplification base 20 covers the base 10, forming a sound cavity 30 together with the base 10. The sound amplification base 20 has multiple sound inlets 21 on the side facing the base 10, and these inlets 21 communicate with the sound cavity 30. The multiple sound inlets 21 are arranged around the center of the sound amplification base 20. The diaphragm 40 is mounted on the side of the sound amplification base 20 facing the base 10. The diaphragm 40 includes an annular folded portion 41, which is located inside the sound cavity 30 and blocks the multiple sound inlets 21. The annular folded portion 41 is used to cooperate with the dynamic coil unit 50 to vibrate and generate sound. This application solves the problem in the prior art where the sound inlets 21 of the speaker do not correspond to some vibrating parts of the diaphragm 40, resulting in inaccurate sound wave propagation and affecting the amplification effect. This speaker structure 1000 can improve the accuracy of sound wave propagation within itself, effectively enhancing the amplification effect.

[0043] Specifically, the annular folded portion 41 of the diaphragm 40 is arranged at the plurality of sound inlets 21, each sound inlet 21 corresponds to a part of the annular folded portion 41, under the action of the moving coil unit 50, the whole annular folded portion 41 vibrates, and the sound waves generated by each part of the annular folded portion 41 can be concentrated and directed to the corresponding sound inlet 21, which ensures the accuracy of sound wave propagation, effectively prevents sound wave deviation or scattering, reduces energy loss during sound wave propagation, improves the efficiency of internal sound wave propagation, and helps to improve sound quality and sound amplification effect.

[0044] Referring to Figure 2 In an embodiment, the sound amplification seat 20 includes a fixing member 22, the fixing member 22 includes a sound guide plate 221 and a pressing ring 222, the plurality of sound inlets 21 are arranged at the sound guide plate 221, the pressing ring 222 is located between the sound guide plate 221 and the base 10, and the diaphragm 40 includes an outer ring portion 42, the outer ring portion 42 is arranged at the periphery of the annular folded portion 41, and the outer ring portion 42 is arranged between the sound guide plate 221 and the pressing ring 222. In this way, the sound guide plate 221 and the pressing ring 222 can limit and install the diaphragm 40, improve the stability of the connection between the diaphragm 40 and the sound amplification seat 20, on the one hand, the annular folded portion 41 can effectively vibrate and sound; on the other hand, the assembly difficulty between the sound amplification seat 20, the diaphragm 40 and the base 10 is reduced, the structure design is simple and easy to assemble, and the assembly time and cost are reduced.

[0045] Referring to Figure 6 In an embodiment, the diaphragm 40 further includes an inner ring portion 43, the inner ring portion 43 is arranged at the inner periphery of the annular folded portion 41, the horn structure 1000 further includes a pressing member 23, and the inner ring portion 43 is arranged between the pressing member 23 and the sound amplification seat 20. In this way, the connection stability of the diaphragm 40 and the sound amplification seat 20 is further improved, and since the inner ring portion 43 and the outer ring portion 42 of the diaphragm 40 are connected with the sound amplification seat 20, the annular folded portion 41 is more uniformly stressed during vibration, which improves the vibration stability and is beneficial to the generation of sound waves by itself.

[0046] Referring to Figure 4 , Figure 5 and Figure 7In an embodiment, the sound guide plate 221 is provided with a first annular groove 2211 on a side facing the compression ring 222, the compression ring 222 is provided with a second annular groove 2221 on a side facing the sound guide plate 221, the outer ring part 42 is clamped between the first annular groove 2211 and the second annular groove 2221, and the first annular groove 2211 and the second annular groove 2221 each contain a first sealing element. In this way, the first annular groove 2211 and the second annular groove 2221 can limit the installation of the first sealing element, prevent the first sealing element from being offset, achieve the fixation of the diaphragm 40 while ensuring the sealing of the sound cavity 30, and because the upper and lower sides of the outer ring part 42 are each provided with a first sealing element, the overall sealing performance of the loudspeaker structure 1000 is also stronger, which can prevent sound leakage and ensure the sound amplification effect. Specifically, the first sealing element can be glue or a sealing ring filled in the first annular groove 2211 and the second annular groove 2221.

[0047] Similarly, referring to Figure 8 In an embodiment, the sound guide plate 221 is further provided with a third annular groove 2212 on a side facing the compression ring 222, the third annular groove 2212 is arranged opposite to the inner ring part 43, and the third annular groove 2212 contains a second sealing element. Its effect is consistent with that of the first annular groove 2211 and the second annular groove 2221, and will not be repeated here. Specifically, the second sealing element is arranged in the same way as the first sealing element.

[0048] Referring to Figure 9 In an embodiment, the sound guide plate 221 is provided with a connecting hole 2213 on a side facing away from the compression ring 222, and the loudspeaker structure 1000 further includes a screw 60, which is threaded through the connecting hole 2213 to be threadedly connected with the compression ring 222. In this way, on the one hand, the detachable connection of the sound guide plate 221 and the compression ring 222 can be achieved, and on the other hand, the fastening force generated by the threaded connection of the screw 60 and the compression ring 222 enables the diaphragm 40 and the first sealing elements on its upper and lower sides to be tightly attached, further improving the sealing performance of the loudspeaker structure 1000.

[0049] In an embodiment, the loudspeaker structure 1000 further includes a positioning structure 24, the positioning structure 24 includes a positioning hole and a positioning pin, the positioning hole is arranged on one of the sound guide plate 221 and the compression ring 222, the positioning pin is arranged on the other one of the sound guide plate 221 and the compression ring 222, and the positioning pin is inserted into the positioning hole to limit the compression ring 222 on the sound guide plate 221. In this way, the positioning hole and the positioning pin cooperate to provide initial positioning when the sound guide plate 221 and the compression ring 222 are installed, ensure the correctness of the relative position of the sound guide plate 221 and the compression ring 222 when they are connected, and improve the assembly efficiency.

[0050] Preferably, two positioning pins and two positioning holes are arranged, and the two positioning holes are arranged at intervals. In this way, the installation position of the compression ring 222 is further limited, the position accuracy of the compression ring 222 on the sound guide plate 221 is improved, and the position of the compression ring 222 is more accurate during installation.

[0051] With reference to Figure 1 With Figure 11 In an embodiment, the side of the base 10 facing the sound amplification seat 20 is provided with a mounting groove 11, the moving coil unit 50 includes a coil 51 and a magnet 52, the magnet 52 is accommodated in the mounting groove 11, the coil 51 is sleeved on the magnet 52, and the coil 51 penetrates the slot of the mounting groove 11 to be connected with the annular folded portion 41. According to the principle of electromagnetic induction, the coil 51 can move in the magnetic field of the magnet 52 after being electrified. Since the coil 51 is directly connected with the annular folded portion 41, the movement of the coil 51 can directly act on the annular folded portion 41 and drive it to vibrate. In this way, energy loss and power loss in the force conversion process are reduced, the vibration efficiency of the annular folded portion 41 is improved, sound distortion is prevented, and the response speed of the overall system of the loudspeaker structure 1000 is faster, and the overall performance of the loudspeaker structure 1000 is improved.

[0052] With reference to Figure 10 - Figure 12 In an embodiment, the sound amplification seat 20 includes an outer peripheral surface, the outer peripheral surface is provided with a notch 25, the notch 25 is provided with a wire passing hole 251, the wire passing hole 251 is in communication with the sound cavity 30, and the loudspeaker structure 1000 further includes a control circuit board 53 and a metal lead sheet 531. The control circuit board 53 is arranged at the notch 25, and the wire passing hole 251 is used for penetrating the metal lead sheet 531, so that the control circuit board 53 is electrically connected to the coil 51 through the metal lead sheet 531. The control circuit board 53 can deliver different sizes of current to the coil 51, so that the coil 51 moves at different frequencies. In this way, through the arrangement of the notch 25 and the wire passing hole 251, the control circuit board 53 can be fixed on the sound amplification seat 20 and connected with the coil 51, and the space of the sound amplification seat 20 itself is effectively utilized, so that the entire loudspeaker structure 1000 is more compact, stable and easy to assemble.

[0053] With reference to Figure 1 In an embodiment, the side of the sound amplification seat 20 facing away from the base 10 is provided with a sound outlet 27, the sound amplification seat 20 has a sound amplification channel 26 inside, and a plurality of sound inlets 21 are in communication with the sound outlet 27 through the sound amplification channel 26. The sound amplification channel 26 can converge sound waves and propagate them in a directional manner. In this way, it is ensured that the sound waves entering the sound amplification seat 20 from different sound inlets 21 can be effectively concentrated to the sound outlet 27, the output power of the sound is effectively enhanced, the sound is clearer and louder, and the coverage range is wider.

[0054] The loudspeaker provided by the embodiment of the utility model not only can enhance the intensity and the definition of the sound, but also can guarantee the stability and the efficiency of the sound in the propagation process.

[0055] It should be understood that the above embodiments are only used to illustrate the technical solutions of the utility model, and are not limited thereto, and the technical solutions recorded in the above embodiments can be modified by those skilled in the art, or some technical features thereof can be replaced equivalently, and all the modifications and replacements shall belong to the protection scope of the utility model.

Claims

1. A horn structure, characterized by, It comprises: a base; a sound amplification seat, which is covered on the base to jointly enclose a sound cavity with the base, a side of the sound amplification seat facing the base is provided with a plurality of sound inlet openings, and the plurality of sound inlet openings are in communication with the sound cavity; and the plurality of sound inlet openings are arranged around the center of the sound amplification seat; a diaphragm, which is arranged on the side of the sound amplification seat facing the base, the diaphragm comprises an annular folded portion, the annular folded portion is located in the sound cavity and is arranged in front of the plurality of sound inlet openings; and the annular folded portion is used to cooperate with a moving coil unit to vibrate and sound.

2. The horn structure according to claim 1, characterized by The sound amplification seat comprises a fixing member, the fixing member comprises a sound guide plate and a compression ring, the plurality of sound inlet openings are arranged on the sound guide plate, the compression ring is located between the sound guide plate and the base, the diaphragm comprises an outer ring portion, the outer ring portion is arranged on the periphery of the annular folded portion, and the outer ring portion is clamped between the sound guide plate and the compression ring.

3. The horn structure according to claim 2, characterized in that, The diaphragm further comprises an inner ring portion, the inner ring portion is arranged on the inner periphery of the annular folded portion, and the loudspeaker structure further comprises a compression holding member, the inner ring portion is clamped between the compression holding member and the sound amplification seat.

4. The horn structure according to claim 3, characterized in that, A first annular groove is arranged on the side of the sound guide plate facing the compression ring, a second annular groove is arranged on the side of the compression ring facing the sound guide plate, the outer ring portion is clamped between the first annular groove and the second annular groove, and the first annular groove and the second annular groove each accommodate a first sealing member.

5. The horn structure according to claim 4, wherein A third annular groove is further arranged on the side of the sound guide plate facing the compression ring, the third annular groove is arranged opposite to the inner ring portion, and the third annular groove accommodates a second sealing member.

6. The horn structure according to claim 2, wherein A connecting hole is arranged on the side of the sound guide plate away from the compression ring, the loudspeaker structure further comprises a screw member, and the screw member is arranged in the connecting hole to be threadedly connected with the compression ring.

7. The horn structure of claim 6, wherein: A positioning structure is further provided, the positioning structure comprises a positioning hole and a positioning pin, the positioning hole is arranged on one of the sound guide plate and the compression ring, the positioning pin is arranged on the other one of the sound guide plate and the compression ring, and the positioning pin is inserted into the positioning hole to limit the compression ring on the sound guide plate.

8. The horn structure according to any one of claims 1 to 7, characterized in that A mounting groove is arranged on the side of the base facing the sound amplification seat, the moving coil unit comprises a coil and a magnet, the magnet is accommodated in the mounting groove, the coil is sleeved on the magnet, and the coil penetrates through the opening of the mounting groove to be connected with the annular folded portion.

9. The horn structure according to claim 8, wherein The sound amplification seat comprises an outer peripheral surface, the outer peripheral surface is provided with a notch, an opening wall of the notch is provided with a wire hole, the wire hole is in communication with the sound cavity, and the loudspeaker structure further comprises a control circuit board and a metal lead sheet, the control circuit board is arranged in the notch, and the wire hole is used for the metal lead sheet to be arranged therein, so that the control circuit board is electrically connected to the coil through the metal lead sheet.

10. A loudspeaker, characterized by The loudspeaker structure comprises the loudspeaker structure according to any one of claims 1-9.

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