Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a basin stand, a vibration assembly, a magnetic circuit assembly and two supporting parts, and is characterized in that the vibration assembly comprises a diaphragm assembly and at least three voice coils arranged in a row, and the diaphragm assembly is connected with the voice coils and the basin stand; the magnetic circuit assembly comprises a yoke, a plurality of central magnetic structures and side magnetic structures, the central magnetic structures and the side magnetic structures are respectively arranged on the yoke, the central magnetic structures are arranged in one-to-one correspondence with the voice coils, the side magnetic structures are arranged around the central magnetic structures, and the side magnetic structures are provided with passing ports corresponding to gaps between two adjacent voice coils; the supporting component comprises an outer fixing part, at least two deformation parts and at least two inner fixing parts, the outer fixing part is connected with the basin frame, each deformation part is connected with the outer fixing part, each deformation part is connected with the inner fixing part, the inner fixing parts are connected with two adjacent voice coils, the deformation parts are in one-to-one correspondence with the passing ports, and the deformation parts are located in the passing ports. The sound production unit is strong in driving force and excellent in performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electroacoustic transducer, especially relates to sound unit. BACKGROUND

[0002] In order to improve the utilization of magnetic steel, provide stronger driving force, improve the sensitivity of sound unit, increase loudness, the current market appears the scheme of multiple voice coils side by side.

[0003] In order to suppress the rolling vibration of voice coil assembly, the sound unit generally adds support components, however, in the existing sound unit, the connection position of support component and voice coil assembly is usually located at the four corner parts of voice coil assembly, the edge magnetic structure area of support component needs to be designed to avoid empty, especially for the sound unit of multiple voice coil architecture, the edge magnetic structure needs to set more number of avoidance position, which undoubtedly will lead to the substantial reduction of the volume of the magnetic steel of sound unit, at the same time, the length of effective magnetic gap will also be reduced, so that the performance improvement of sound unit is difficult. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that: provide a kind of high-performance sound unit.

[0005] In order to solve the above technical problem, the technical scheme that the utility model adopts is as follows: sound unit, comprising:

[0006] Frame;

[0007] Vibration assembly, the vibration assembly includes diaphragm assembly and at least three voice coils arranged in a row, the diaphragm assembly is connected the voice coil with the frame;

[0008] Magnetic circuit assembly, the magnetic circuit assembly includes yoke and respectively set on the center magnetic structure and the edge magnetic structure of the yoke, the number of the center magnetic structure is multiple and is arranged one by one with the voice coil, the edge magnetic structure is arranged around the center magnetic structure, the edge magnetic structure is provided with the mouth of a river corresponding to the gap between the adjacent two voice coils;

[0009] Two support components, the support component includes outer fixed part, at least two deformation parts and at least two inner fixed parts, the outer fixed part is connected with the frame, each deformation part is connected with the outer fixed part, each deformation part is connected with the inner fixed part, the inner fixed part is connected with the adjacent two voice coils, the number of the deformation part is multiple and is one-to-one corresponding with the mouth of a river, and the deformation part is located in the mouth of a river.

[0010] Further, the adjacent two voice coils are bonded to each other, or the adjacent two voice coils are not in contact with each other.

[0011] Further, the support component is a secondary membrane.

[0012] Further, the support component is an FPC board.

[0013] Further, the FPC board is provided with a conducting structure, the inner fixing part is provided with two inner pads, one of the inner pads is welded with one of the adjacent two voice coils in a conducting manner, and the other inner pad is welded with the other of the adjacent two voice coils in a conducting manner.

[0014] Further, the inner fixing part has an extension part extending into the through opening, and the inner pad is arranged on the extension part.

[0015] Further, the gap between the adjacent two voice coils comprises a character-shaped part and an inner recess, the two ends of the character-shaped part are respectively communicated with the inner recess, the inner recess is communicated with the through opening in a corresponding manner, and one end of the deformation part of the inner fixing part extends into the inner recess.

[0016] Further, the number of the voice coils is three.

[0017] Further, one of the support components is connected to one long side of the yoke, and the other support component is connected to the other long side of the yoke.

[0018] Further, the side magnetic structure is in the shape of a rectangular frame, and the corner part of the side magnetic structure is free of a vacancy area.

[0019] The sound generating unit has the advantages that: the sound generating unit has a novel structure, adopts a multi-voice coil side-by-side structure, effectively improves the driving force of the sound generating unit, and improves the loudness, amplitude and sensitivity of the sound generating unit; the number of the through openings on the side magnetic structure is beneficial to ensuring the volume of the side magnetic structure, meanwhile, the effective length of the magnetic gap is increased, and the performance of the sound generating unit is further improved. The deformation part of the support component is located in the through opening, the deformation part does not need to occupy the peripheral space of the side magnetic structure, the side magnetic structure can be expanded outward without changing the contour size of the sound generating unit, so that the volume of the side magnetic structure is increased to a greater extent, and the performance of the sound generating unit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 2 is a structure schematic view of a sound generating unit hidden diaphragm assembly according to the first embodiment of the utility model;

[0021] Figure 2 Fig. 3 is a structure schematic view of a sound generating unit hidden yoke according to the first embodiment of the utility model.

[0022] LABEL EXPLANATION

[0023] 1, yoke;

[0024] 2, voice coil; 21, gap; 211, one character part; 212, inner recess;

[0025] 3, center magnetic structure;

[0026] 4, edge magnetic structure; 41, overpass;

[0027] 5, support part; 51, outer fixed part; 52, deformation part; 53, inner fixed part; 531, extension part. DETAILED DESCRIPTION

[0028] To illustrate the technical content of the utility model, the purposes and effects achieved, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0029] Please refer to Figure 1 And Figure 2 , sound unit, comprising:

[0030] The pot frame 1;

[0031] Vibration assembly, the vibration assembly includes diaphragm assembly and at least three voice coils 2 arranged in a row, the diaphragm assembly connects the voice coil 2 with the pot frame 1;

[0032] Magnetic circuit assembly, the magnetic circuit assembly includes yoke and respectively set on the yoke center magnetic structure 3 and edge magnetic structure 4, the number of center magnetic structure 3 is multiple and is arranged one by one with the voice coil 2, the edge magnetic structure 4 is arranged around the center magnetic structure 3, the edge magnetic structure 4 is provided with overpass 41 at the gap 21 between the adjacent two voice coils 2;

[0033] Two support parts 5, the support part 5 includes outer fixed part 51, at least two deformation parts 52 and at least two inner fixed parts 53, the outer fixed part 51 connects the pot frame 1, each deformation part 52 is connected with the outer fixed part 51, each deformation part 52 is connected with the inner fixed part 53, the inner fixed part 53 connects adjacent two voice coils 2, the number of deformation parts 52 is multiple and corresponds to the overpass 41 one by one, the deformation part 52 is located in the overpass 41.

[0034] The utility model discloses the beneficial effect in the above description is at: the sounding unit structure novel, adopts the side -by -side framework of multiple voice coil 2, effectively improved the driving force of sounding unit, has promoted the loudness, amplitude and sensitivity of sounding unit, the quantity of the over mouth 41 on the side magnetic structure 4, benefit guarantee the volume of side magnetic structure 4, simultaneously, increase the effective length of magnetic gap, and the performance of sounding unit can be further promoted. The deformation part 52 of support component 5 is located in the over mouth 41, and the deformation part 52 does not need to occupy the peripheral space of side magnetic structure 4, under the prerequisite of not changing the outline size of sounding unit, side magnetic structure 4 can expand outward, thereby the volume of side magnetic structure 4 is increased to a greater extent, and the performance of sounding unit is improved.

[0035] Further, the two adjacent voice coils 2 are bonded to each other, or the two adjacent voice coils 2 are arranged without contacting each other.

[0036] From the above description, when the two adjacent voice coils 2 are bonded to each other, the multiple voice coils 2 can form an integral whole, which is beneficial to improve the phenomenon of segmented vibration of the sounding unit; when the two adjacent voice coils 2 are arranged without contacting each other, the assembly process of the sounding unit can be simplified, which is beneficial to improve the manufacturing efficiency of the sounding unit.

[0037] Further, the support component 5 is a secondary film.

[0038] Further, the support component 5 is an FPC board.

[0039] From the above description, the specific type of the support component 5 has multiple options.

[0040] Further, the FPC board is provided with a conduction structure, the inner fixing part 53 is provided with two inner pads, one of the inner pads is welded and conducted with one of the voice coils 2 in the two adjacent voice coils 2, and the other inner pad is welded and conducted with the other voice coil 2 in the two adjacent voice coils 2.

[0041] From the above description, the FPC board can not only support the voice coil 2, but also conduct the voice coil 2.

[0042] Further, the inner fixing part 53 has an extension part 531 extending into the over mouth 41, and the inner pad is arranged on the extension part 531.

[0043] From the above description, the extension part 531 can provide sufficient setting area for the inner pad.

[0044] Further, the gap 21 between two adjacent voice coils 2 comprises a one- character part 211 and an inner recess part 212, the two ends of the one-character part 211 are respectively communicated with the inner recess part 212, the inner recess part 212 is communicated with the overpass 41, and one end of the deformation part 52 connected with the inner fixed part 53 extends into the inner recess part 212.

[0045] As described above, one end of the deformation part 52 extends into the inner recess part 212, so that the total length of the deformation part 52 can be set longer, which is beneficial to reduce the stress of the deformation part 52, improve the risk of fatigue fracture of the deformation part 52, and improve the reliability margin of the FPC board.

[0046] Further, the number of the voice coils 2 is three.

[0047] Further, one of the support parts 5 is connected with one long side of the yoke 1, and the other support part 5 is connected with the other long side of the yoke 1.

[0048] As described above, the opposite ends of the voice coil 2 can be effectively supported.

[0049] Further, the side magnetic structure 4 is in the shape of a rectangular frame, and the corner part of the side magnetic structure 4 has no vacancy area.

[0050] As described above, the side magnetic structure 4 has a large overall volume, which is beneficial to improve the magnetic field strength of the sound unit, so as to improve the acoustic performance of the sound unit.

[0051] Please refer to Figure 1 and Figure 2The utility model discloses an embodiment one is: sounding unit, including basin frame 1, vibration subassembly, magnetic circuit subassembly and support part 5, vibration subassembly includes diaphragm subassembly and at least three voice coil 2 of setting in a row, in this embodiment, the number of voice coil 2 is three, diaphragm subassembly connects voice coil 2 with basin frame 1, magnetic circuit subassembly includes yoke and respectively set on the center magnetic structure 3 and the side magnetic structure 4 of yoke, the number of center magnetic structure 3 is multiple and with voice coil 2 one -to -one corresponding setting, the side magnetic structure 4 surrounds center magnetic structure 3 and is provided with the mouth 41 of passing through at the gap 21 between the adjacent two voice coil 2, the number of support part 5 is two, one support part 5 connects one long side of basin frame 1, and another support part 5 connects another long side of basin frame 1, and support part 5 includes outer fixed part 51, at least two deformation part 52 and at least two inner fixed part 53, outer fixed part 51 connects basin frame 1, each deformation part 52 is connected with outer fixed part 51, and each deformation part 52 is connected with inner fixed part 53, and inner fixed part 53 connects the adjacent two voice coil 2, and the number of deformation part 52 is multiple and corresponds with the mouth 41 of passing through, and deformation part 52 is located in the mouth 41 of passing through.

[0052] Center magnetic structure 3 includes center magnetic steel and center hua si, and the center magnetic steel is connected with the center hua si and the yoke.

[0053] The side magnetic structure 4 is in the shape of a rectangular frame, and the corner of the side magnetic structure 4 has no empty area. Specifically, the two ends of the side magnetic structure 4 are in the shape of a concave letter.

[0054] In this embodiment, the two voice coils 2 are bonded to each other, and in other embodiments, the two voice coils 2 can be arranged without contacting each other.

[0055] In an embodiment, the support part 5 is a secondary membrane. In this embodiment, the support part 5 is an FPC board, specifically, two FPC boards are arranged correspondingly, a through-structure is arranged on the FPC board, two inner pads are arranged on the inner fixed part 53, one of the inner pads is welded in electrical connection with one of the voice coils 2 of the adjacent two voice coils 2, and the other inner pad is welded in electrical connection with the other voice coil 2 of the adjacent two voice coils 2. More specifically, an outer pad in electrical connection with the inner pad is arranged on the outer fixed part 51.

[0056] To facilitate wiring of the voice coil 2, the inner fixed part 53 has an extension 531 extending into the mouth 41 of passing through, and the inner pad is arranged on the extension 531.

[0057] The gap 21 between two adjacent voice coils 2 comprises a one-word part 211 and a concave part 212, two ends of the one-word part 211 are communicated with the concave part 212 respectively, the concave part 212 is communicated with the overpass 41, and one end of the deformation part 52 connected with the inner fixed part 53 extends into the concave part 212.

[0058] In conclusion, the sound unit structure is novel, the multiple voice coils are arranged side by side, the driving force of the sound unit is effectively improved, and the loudness, amplitude and sensitivity of the sound unit are improved; the number of overpasses on the side magnetic structure is beneficial to ensuring the volume of the side magnetic structure, meanwhile, the effective length of the magnetic gap is increased, and the performance of the sound unit is further improved. The deformation part of the supporting part is located in the overpass, the deformation part does not need to occupy the peripheral space of the side magnetic structure, the side magnetic structure can be expanded outward without changing the contour size of the sound unit, so that the volume of the side magnetic structure is increased to a greater extent, and the performance of the sound unit is improved.

[0059] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A sound emitting unit, characterized by, The application relates to a loudspeaker, which comprises a frame, a vibration assembly and a magnetic circuit assembly. The vibration assembly comprises a diaphragm assembly and at least three voice coils arranged in a row, the diaphragm assembly connecting the voice coils and the frame. The magnetic circuit assembly comprises a yoke, a plurality of central magnetic structures and a plurality of side magnetic structures, the central magnetic structures being arranged one by one corresponding to the voice coils, the side magnetic structures being arranged around the central magnetic structures, and each side magnetic structure being provided with a notch corresponding to a gap between two adjacent voice coils. Two support components, each comprising an outer fixed part, at least two deformation parts and at least two inner fixed parts, the outer fixed part connecting the frame, each deformation part connecting the outer fixed part, each deformation part being connected with an inner fixed part, the inner fixed part connecting two adjacent voice coils, the deformation parts corresponding to the notches one by one, and the deformation parts being located in the notches. The two adjacent voice coils are bonded to each other, or the two adjacent voice coils are arranged without contacting each other.

2. The sound producing unit of claim 1, wherein, The support component is a sub-diaphragm.

3. The sound producing unit of claim 1, wherein, The support component is an FPC board.

4. The sound producing unit of claim 1, wherein, The FPC board is provided with a conducting structure, the inner fixed part is provided with two inner pads, one inner pad being welded to one of the two adjacent voice coils, and the other inner pad being welded to the other of the two adjacent voice coils.

5. The sound producing unit of claim 4, wherein: The inner fixed part has an extension part extending into the notch, and the inner pad is arranged on the extension part.

6. The sound producing unit of claim 5, wherein: The gap between the two adjacent voice coils comprises a one-letter part and an inner recess, the two ends of the one-letter part being respectively communicated with the inner recess, the inner recess being communicated with the notch, and one end of the deformation part connecting the inner fixed part extending into the inner recess.

7. The sound producing unit of claim 1, wherein: The number of the voice coils is three.

8. The sound producing unit of claim 1, wherein: One support component connects one long side of the frame, and the other support component connects the other long side of the frame.

9. The sound producing unit of claim 1, wherein: The side magnetic structure is in the shape of a rectangular frame, and the corner of the side magnetic structure has no empty area.

10. The sound producing unit of claim 1, wherein: The application further relates to a loudspeaker, which comprises a frame, a vibration assembly and a magnetic circuit assembly. The vibration assembly comprises a diaphragm assembly and at least three voice coils arranged in a row, the diaphragm assembly connecting the voice coils and the frame. The magnetic circuit assembly comprises a yoke, a plurality of central magnetic structures and a plurality of side magnetic structures, the central magnetic structures being arranged one by one corresponding to the voice coils, the side magnetic structures being arranged around the central magnetic structures, and each side magnetic structure being provided with a notch corresponding to a gap between two adjacent voice coils. Two support components, each comprising an outer fixed part, at least two deformation parts and at least two inner fixed parts, the outer fixed part connecting the frame, each deformation part connecting the outer fixed part, each deformation part being connected with an inner fixed part, the inner fixed part connecting two adjacent voice coils, the deformation parts corresponding to the notches one by one, and the deformation parts being located in the notches. The two adjacent voice coils are bonded to each other, or the two adjacent voice coils are arranged without contacting each other. The support component is a sub-diaphragm. The support component is an FPC board. The FPC board is provided with a conducting structure, the inner fixed part is provided with two inner pads, one inner pad being welded to one of the two adjacent voice coils, and the other inner pad being welded to the other of the two adjacent voice coils. The inner fixed part has an extension part extending into the notch, and the inner pad is arranged on the extension part. The gap between the two adjacent voice coils comprises a one-letter part and an inner recess, the two ends of the one-letter part being respectively communicated with the inner recess, the inner recess being communicated with the notch, and one end of the deformation part connecting the inner fixed part extending into the inner recess. The number of the voice coils is three. One support component connects one long side of the frame, and the other support component connects the other long side of the frame. The side magnetic structure is in the shape of a rectangular frame, and the corner of the side magnetic structure has no empty area.

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