Sound production unit

Abstract

The utility model discloses a sounding unit which comprises a basin stand, a magnetic circuit assembly and a shaping support chip, the basin stand comprises a body and a lower boss which are connected, and the body is in an annular frame shape; the magnetic circuit assembly comprises a yoke, side magnetic steel and a side washer, the side magnetic steel is connected with the yoke and the side washer, the side washer is connected with the basin stand, and the yoke is provided with a notch corresponding to the lower boss; the shaping support chip comprises an inner mounting part, a cantilever part and an outer mounting part which are sequentially connected from inside to outside, the outer mounting part comprises a fixing part, an elevating part and an outer bonding pad which are sequentially connected, the fixing part is connected with the cantilever part and fixed on the side washer, and the outer bonding pad is fixed on the bottom surface of the lower boss and corresponds to the notch. The fixing part of the outer mounting part of the shaping support chip is fixed on the side washer, and a mounting area for mounting the fixing part does not need to be reserved on the basin stand, so that the wall thickness of the basin stand is reduced, the occupied space of the basin stand is reduced, the sound production unit has more space for arranging the magnetic circuit assembly, the magnetic field intensity of the sound production unit is increased, and the performance of the sound production unit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electroacoustic transducer technical field especially relates to sounding unit. BACKGROUND

[0002] Sounding unit as the common electroacoustic transducer that electric energy is changed into sound energy, it plays an indispensable role in the sound system. With the mobile phone, tablet computer and other consumer electronics products, especially AR / VR and other large wearable electronic equipment, the appearance light and thin and the performance have put forward higher requirements, sounding unit as an important component unit of such products, in its performance, size etc. also put forward higher and higher requirements.

[0003] In order to pursue the high performance of sounding unit, the fixed type support piece is usually used as the conducting part of sounding unit, but the fixed type support piece will occupy the larger space inside sounding unit, especially, in the prior art, the outer mounting portion of fixed type support piece is generally fixed on the basket, which leads to the basket needing to reserve a special position for mounting the outer mounting portion, which will undoubtedly lead to the increase of the volume of the basket, and in the sounding unit, the increase of the volume of the basket makes the space for setting the magnetic circuit assembly smaller, which will obviously lead to the performance decline of the sounding unit. UTILITARIAN CONTENT

[0004] The technical problem to be solved by the utility model is to provide a high-performance sounding unit.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme that sounding unit includes:

[0006] The basket includes a body and a lower boss connected to each other, and the body is in the form of a ring frame;

[0007] The magnetic circuit assembly includes a yoke, a side magnetic steel and a side vane, the side magnetic steel is connected with the yoke and the side vane, the side vane is connected with the basket, and the yoke has an opening corresponding to the lower boss;

[0008] The fixed type support piece includes an inner mounting portion, a cantilever portion and an outer mounting portion connected to each other from inside to outside, the outer mounting portion includes a fixed portion, a height-raising portion and an outer pad connected to each other, the fixed portion is connected with the cantilever portion and fixed on the side vane, and the outer pad is fixed on the bottom surface of the lower boss and corresponds to the opening.

[0009] Further, the height-raising portion is fixedly connected with the side wall of the lower boss.

[0010] Further, the lower boss is located at the middle part of the short side or the middle part of the long side of the body.

[0011] Furthermore, the basin frame has an extending edge extending downward, and the extending edge connects the main body and the lower boss.

[0012] Furthermore, an air leakage hole is provided on the extended edge.

[0013] Furthermore, a breathable isolation piece covering the air leakage hole is provided on the extension edge.

[0014] Furthermore, the basin stand also has a positioning column connected to the main body, and the two ends of the extended edge are respectively connected to the positioning column. Part of the area of ​​the extended edge, the positioning column and the lower boss form a concave structure, and the fixing part is located in the concave structure.

[0015] Furthermore, the bottom end of the extended edge has a notch corresponding to the lower boss.

[0016] Furthermore, the top surface of the notch is higher than or flush with the bottom surface of the lower boss.

[0017] Furthermore, the outer wall surface of the extension edge and the outer wall surface of the lower boss to which it is connected are coplanar.

[0018] The beneficial effects of the present invention are as follows: the sound unit has a novel structure, the fixing part of the outer mounting part of the shaped support is fixed on the edge washer, and there is no need to reserve an installation area for the fixing part on the basin frame, so that the wall thickness of the basin frame can be thinned, which is beneficial to reducing the space occupied by the basin frame, so that the sound unit has more space to set up the magnetic circuit component, thereby increasing the magnetic field strength of the sound unit and improving the performance of the sound unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the overall structure of the sound-emitting unit according to the first embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of part of the structure of the sound-emitting unit of the first embodiment of the present invention.

[0021] Description of labels:

[0022] 1. Basin frame; 11. Main body; 12. Lower boss; 13. Extended edge; 131. Notch; 14. Air vent; 15. Positioning column;

[0023] 2. Magnetic circuit assembly; 21. Yoke; 211. Notch; 22. Center magnet; 23. Side magnet; 231. Avoidance groove; 24. Side washer;

[0024] 3. Vibration assembly; 31. Voice coil;

[0025] 4, shaping support piece; 41, inner mounting portion; 42, cantilever portion; 43, outer mounting portion; 431, fixing portion; 432, heightening portion; 433, outer solder pad. DETAILED DESCRIPTION

[0026] To make the technical contents, purposes and effects of the present application clear, the following will be described in combination with the embodiments and the accompanying drawings.

[0027] Please refer to Figure 1 and Figure 2 , the sound unit comprises:

[0028] The pot bracket 1 comprises a body 11 and a lower boss 12 connected to each other, and the body 11 is in the shape of a ring frame;

[0029] The magnetic circuit assembly 2 comprises a yoke 21, a side magnetic steel 23 and a side dust core 24, the side magnetic steel 23 connects the yoke 21 and the side dust core 24, the side dust core 24 is connected to the pot bracket 1, and the yoke 21 has a gap 211 corresponding to the lower boss 12;

[0030] The shaping support piece 4 comprises an inner mounting portion 41, a cantilever portion 42 and an outer mounting portion 43 connected to each other from inside to outside, the outer mounting portion 43 comprises a fixing portion 431, a heightening portion 432 and an outer solder pad 433 connected to each other in sequence, the fixing portion 431 is connected to the cantilever portion 42 and fixed on the side dust core 24, and the outer solder pad 433 is fixed on the bottom surface of the lower boss 12 and corresponds to the gap 211.

[0031] From the above description, it can be seen that the sound unit has the following advantages: the fixing portion 431 of the outer mounting portion 43 of the shaping support piece 4 is fixed on the side dust core 24, and the pot bracket 1 does not need to leave a mounting area for the fixing portion 431, so that the wall thickness of the pot bracket 1 can be reduced, the occupied space of the pot bracket 1 is reduced, and the sound unit has more space to set the magnetic circuit assembly 2, thereby increasing the magnetic field strength of the sound unit and improving the performance of the sound unit.

[0032] Further, the heightening portion 432 is fixedly connected to the side wall of the lower boss 12.

[0033] From the above description, it can be seen that the total area of the region where the shaping support piece 4 is connected is large, so that the installation of the shaping support piece 4 is more firm, the structural stability of the sound unit is improved, and the drop reliability margin of the sound unit is improved.

[0034] Further, the lower boss 12 is located at the middle of the short side of the body 11 or the middle of the long side.

[0035] From the above description, the position of the lower boss 12 on the body 11 can be selectively set according to actual needs.

[0036] Further, the basin frame 1 has an extension edge 13 extending downward, which connects the body 11 and the lower boss 12.

[0037] From the above description, the presence of the extension edge 13 can improve the overall structural strength of the basin frame 1, reduce the risk of deformation of the basin frame 1, and help ensure the structural stability of the sound unit.

[0038] Further, the extension edge 13 is provided with an air vent 14.

[0039] From the above description, the provision of the air vent 14 can effectively balance the internal and external air pressure of the sound unit, and help improve the acoustic performance of the sound unit.

[0040] Further, the extension edge 13 is also provided with a gas permeable isolation member covering the air vent 14.

[0041] From the above description, the gas permeable isolation member is used to prevent foreign matter outside the sound unit from entering the inside of the sound unit and affecting the sound of the sound unit, which includes but is not limited to sound-absorbing particles and the like.

[0042] Further, the basin frame 1 also has a positioning column 15 connected to the body 11, both ends of the extension edge 13 are connected with the positioning column 15, and part of the area of the extension edge 13, the positioning column 15 and the lower boss 12 form a concave structure, and the fixing part 431 is located in the concave structure.

[0043] From the above description, the presence of the positioning column 15 can facilitate the positioning and installation of the yoke 21 and the basin frame 1, and the concave structure can effectively protect the shaping support 4 from being scratched or damaged by foreign matter.

[0044] Further, the bottom end of the extension edge 13 has a notch 131 corresponding to the lower boss 12.

[0045] From the above description, the provision of the notch 131 can avoid interference of the extension edge 13 with the external FPC, and affect the welding conduction of the external FPC and the external pad 433.

[0046] Further, the top surface of the notch 131 is higher than or flush with the bottom surface of the lower boss 12.

[0047] As can be seen from the above description, when the top surface of the notch 131 is flush with the bottom surface of the lower boss 12, the top surface of the notch 131 can also be used as a fixing surface for fixing the outer pad 433, so that the volume of the lower boss 12 can be set smaller, thereby leaving more space for the magnetic circuit assembly 2.

[0048] Further, the outer wall surface of the extension edge 13 and the outer wall surface of the lower boss 12 connected thereto are coplanar.

[0049] As can be seen from the above description, the outer wall of the basket 1 is smooth and has no protruding structure.

[0050] Please refer to Figure 1 and Figure 2 Embodiment one of the utility model is: sounding unit, including basket 1, magnetic circuit assembly 2, vibration assembly 3 and shaping support piece 4, vibration assembly 3 and magnetic circuit assembly 2 are connected respectively basket 1, vibration assembly 3 includes diaphragm assembly and voice coil 31, the diaphragm assembly is connected basket 1 with voice coil 31, magnetic circuit assembly 2 includes yoke 21, center magnetic steel 22, center huasa, edge magnetic steel 23 and edge huasa 24, center magnetic steel 22 is located yoke 21 and is set correspondingly to the hollow area of voice coil 31, center huasa is located center magnetic steel 22, edge magnetic steel 23 is connected yoke 21 with edge huasa 24, the magnetic gap for the activity of voice coil 31 is formed between center magnetic steel 22 and edge magnetic steel 23, edge huasa 24 is connected basket 1, specifically, basket 1 includes the body 11 and lower boss 12 connected, the body 11 is ring frame shape, the diaphragm assembly and edge huasa 24 are connected respectively body 11, in this embodiment, lower boss 12 is located the middle part of short side of body 11, in other embodiments, lower boss 12 can also be located the middle part of long side of body 11, optionally, edge huasa 24 and body 11 are the integral structure of insert injection molding,

[0051] Yoke 21 has the aperture 211 correspondingly set to lower boss 12, shaping support piece 4 includes the inner mounting portion 41, cantilever portion 42 and outer mounting portion 43 sequentially connected from inside to outside, inner fixed portion 431 is connected voice coil 31, outer mounting portion 43 includes fixed portion 431, heightening portion 432 and outer pad 433 sequentially connected, fixed portion 431 is connected cantilever portion 42 and is fixed on edge huasa 24, outer pad 433 is fixed on the bottom surface of lower boss 12 and corresponds aperture 211.

[0052] To improve the stability of shaping support piece 4 installation, heightening portion 432 is fixedly connected with the side wall of lower boss 12.

[0053] The side magnetic steel 23 is provided with an avoiding groove 231 for avoiding the cantilever part 42, and in the embodiment, the lower boss 12 is connected with two shaped supporting sheets 4, and the side magnetic steel 23 needs to avoid two cantilever parts 42, so the side magnetic steel 23 is in a convex shape.

[0054] The basin support 1 has an extending edge 13 extending downward, which connects the body 11 and the lower boss 12, and the extending edge 13 is provided with a deflation hole 14, and the extending edge 13 is further provided with a breathable isolation piece covering the deflation hole 14, and the breathable isolation piece is a mesh cloth or the like.

[0055] As a preferred embodiment, the basin support 1 further has a positioning column 15 connected with the body 11, the yoke 21 has a positioning groove matched with the positioning column 15, both ends of the extending edge 13 are respectively connected with the positioning column 15, and part of the extending edge 13, the positioning column 15 and the lower boss 12 form a concave shape structure, and the fixing part 431 is located in the concave shape structure.

[0056] The bottom end of the extending edge 13 has a notch 131 corresponding to the lower boss 12, and preferably, the top surface of the notch 131 is higher than or flush with the bottom surface of the lower boss 12, and in a specific product, the top surface of the notch 131 can also be lower than the bottom surface of the lower boss 12, and the extending edge 13 can also protect the outer pad 433 to a certain extent.

[0057] The outer wall surface of the extending edge 13 is coplanar with the outer wall surface of the lower boss 12 connected therewith.

[0058] In summary, the sound unit structure is novel, the fixing part of the outer mounting part of the shaped supporting sheet is fixed on the side magnetic steel, the mounting area of the fixing part of the mounting part of the shaped supporting sheet is not required to be left on the basin support, the wall thickness of the basin support can be thinned, the occupied space of the basin support is reduced, the sound unit has more space to set the magnetic circuit assembly, the magnetic field strength of the sound unit is increased, and the performance of the sound unit is improved. The frame height part of the shaped supporting sheet can be effectively fixed, and the structural stability 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 according to the content of the utility model specification and the drawings is also included in the patent protection range of the utility model.

Claims

1. A sound emitting unit, characterized by, Comprising a pot frame comprising a body and a lower boss connected with each other, the body being in the shape of a ring frame; a magnetic circuit assembly comprising a yoke, a side magnetic steel and a side amorphous metal alloy, the side magnetic steel connecting the yoke and the side amorphous metal alloy, the side amorphous metal alloy connecting the pot frame, the yoke having an opening corresponding to the lower boss; a shaping support piece comprising an inner mounting portion, a cantilever portion and an outer mounting portion connected with each other from inside to outside, the outer mounting portion comprising a fixing portion, a heightening portion and an outer solder pad connected with each other in sequence, the fixing portion connecting the cantilever portion and being fixed on the side amorphous metal alloy, the outer solder pad being fixed on the bottom surface of the lower boss and corresponding to the opening.

2. The sound producing unit of claim 1, wherein, The heightening portion is fixedly connected with the side wall of the lower boss.

3. The sound producing unit of claim 1, wherein, The lower boss is located at the middle of the short side or the middle of the long side of the body.

4. The sound producing unit of claim 1, wherein, The pot frame has an extension edge extending downward, the extension edge connecting the body and the lower boss.

5. The sound producing unit of claim 4, wherein, An air release hole is arranged on the extension edge.

6. The sound producing unit of claim 5, wherein, A gas permeable isolation piece covering the air release hole is further arranged on the extension edge.

7. The sound producing unit of claim 4, wherein, The pot frame further has a positioning column connecting the body, both ends of the extension edge being connected with the positioning column respectively, a part of the extension edge, the positioning column and the lower boss forming a concave structure, the fixing portion being located in the concave structure.

8. The sound producing unit of claim 4, wherein, The bottom end of the extension edge has a notch corresponding to the lower boss.

9. The sound producing unit of claim 8, wherein, The top surface of the notch is higher than or flush with the bottom surface of the lower boss.

10. The sound producing unit of claim 4, wherein, The outer wall surface of the extension edge and the outer wall surface of the lower boss connected therewith are coplanar.

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