Sound production unit and electronic equipment

Abstract

The utility model discloses a sounding unit and an electronic device, the sounding unit comprises a basin stand, a magnetic circuit assembly and a glue layer, the magnetic circuit assembly comprises a yoke, a side magnetic steel and a side washer, the side washer is fixedly connected with the basin stand, the side magnetic steel is fixedly connected with the yoke, the side washer is provided with a turnup which is bent towards the direction close to the yoke, and the glue layer is arranged on the turnup. The edge magnetic steel is provided with a slot for the flange to insert; the glue layer comprises a first part and a second part, the first part is respectively contacted with the bottom surface of the edge washer and the top surface of the edge magnetic steel, the second part is positioned in the slot, and the second part is respectively contacted with the flanging and the edge magnetic steel. The sound production unit is novel in structure, the bonding area between the edge washer and the edge magnetic steel is effectively increased due to the arrangement of the edge washer upper flanging, so that the connection strength between the edge washer and the edge magnetic steel is improved, the structural stability of the sound production unit is improved, and the phenomenon that the edge magnetic steel and the edge washer are easy to separate when the sound production unit falls off is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit and an electronic device. Background Art

[0002] As a common electroacoustic transducer that converts electrical energy into acoustic energy, the sound unit plays an indispensable role in the sound amplifier system. With the rapid development of consumer electronic devices such as mobile phones and tablets, especially large wearable electronic devices such as AR / VR, the overall size of the sound unit is getting smaller and smaller, which leads to the smaller volume of magnetic circuit components, resulting in a decrease in the bonding strength between the side magnets and the side washers. When the sound unit is dropped, the side magnets and the side washers are easily separated. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a sound unit with a side washer and a side magnetic steel stably connected, and an electronic device with the sound unit.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sound unit, comprising:

[0005] basin stand;

[0006] A magnetic circuit assembly, the magnetic circuit assembly comprising a yoke, an edge magnetic steel and an edge washer, the edge washer is fixedly connected to the basin frame, the edge magnetic steel is fixedly connected to the yoke, the edge washer has a flange bent toward the yoke, and the edge magnetic steel has a slot for inserting the flange;

[0007] The adhesive layer includes a first part and a second part, the first part contacts the bottom surface of the edge washer and the top surface of the edge magnetic steel respectively, and the second part is located in the slot, and the second part contacts the flange and the edge magnetic steel respectively.

[0008] Furthermore, the first part is connected to the second part.

[0009] Furthermore, the second portion covers at least one wall surface of the flange.

[0010] Furthermore, the second portion covers the entire area of ​​the flange located in the slot.

[0011] Furthermore, one or more slots are provided on the same edge magnetic steel.

[0012] Furthermore, the flange is formed by bending a partial area of ​​the edge washer.

[0013] Furthermore, the flange is connected to the edge washer via a bending portion.

[0014] Furthermore, the edge washer and the basin frame are an integrated structure formed by insert injection molding, and a partial area of ​​the basin frame covers the outer arc surface of the bending portion.

[0015] Furthermore, the flange is arranged close to the outer edge of the edge washer.

[0016] In order to solve the above technical problem, the utility model also adopts the following technical solution: an electronic device includes the above sound unit.

[0017] The beneficial effects of the utility model are:

[0018] The sound unit has a novel structure. The setting of the upper flange of the side washer can effectively increase the bonding area between the side washer and the side magnetic steel, thereby improving the connection strength between the side washer and the side magnetic steel, which is beneficial to improving the structural stability of the sound unit and improving the phenomenon that the side magnetic steel and the side washer are easily separated when the sound unit falls.

[0019] The sound-generating unit can be obtained by modifying an existing sound-generating unit and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a part of the structure of the sound-emitting unit of the first embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a part of the structure of the magnetic circuit assembly in the sound-generating unit of the first embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the combination of the basin frame and the edge washer in the sound unit of the first embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the edge washer in the sound-emitting unit of the first embodiment of the utility model.

[0024] Description of labels:

[0025] 1. Basin stand;

[0026] 2. Magnetic circuit assembly; 21. Yoke; 22. Center magnetic steel; 23. Center washer; 24. Side magnetic steel; 241. Slot; 25. Side washer; 251. Flanging; 252. Bending portion;

[0027] 3. Adhesive layer; 31. First part; 32. Second part. DETAILED DESCRIPTION

[0028] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0029] Please refer to Figures 1 to 4 , sound unit, including:

[0030] Basin stand 1;

[0031] A magnetic circuit component 2, the magnetic circuit component 2 comprises a yoke 21, a side magnetic steel 24 and a side washer 25, the side washer 25 is fixedly connected to the basin frame 1, the side magnetic steel 24 is fixedly connected to the yoke 21, the side washer 25 has a flange 251 bent toward the yoke 21, and the side magnetic steel 24 has a slot 241 for inserting the flange 251;

[0032] The adhesive layer 3 includes a first portion 31 and a second portion 32, wherein the first portion 31 contacts the bottom surface of the edge washer 25 and the top surface of the edge magnetic steel 24 respectively, and the second portion 32 is located in the slot 241, and the second portion 32 contacts the flange 251 and the edge magnetic steel 24 respectively.

[0033] From the above description, it can be seen that the beneficial effects of the utility model are: the sound unit has a novel structure, and the setting of the upper flange 251 of the side washer 25 can effectively increase the bonding area between the side washer 25 and the side magnetic steel 24, thereby improving the connection strength between the side washer 25 and the side magnetic steel 24, which is beneficial to improving the structural stability of the sound unit and improving the phenomenon that the side magnetic steel 24 and the side washer 25 are easily separated when the sound unit falls; the sound unit can be obtained by modifying the existing sound unit and is easy to promote and apply.

[0034] Furthermore, the first part 31 is connected to the second part 32 .

[0035] It can be seen from the above description that the connection between the first part 31 and the second part 32 of the adhesive layer 3 can not only facilitate the adhesive coating work, but also increase the bonding area between the side magnetic steel 24 and the side washer 25 to a greater extent.

[0036] Furthermore, the second portion 32 covers at least one wall surface of the flange 251 .

[0037] Furthermore, the second portion 32 covers the entire area of ​​the flange 251 located in the slot 241 .

[0038] From the above description, it can be seen that the second part 32 of the adhesive layer 3 covers the entire area of ​​the peripheral wall of the flange 251 and the bottom surface of the flange 251, which can maximize the bonding area between the edge magnetic steel 24 and the edge washer 25, thereby enhancing the connection strength between the edge magnetic steel 24 and the edge washer 25.

[0039] Furthermore, one or more slots 241 are provided on the same edge magnetic steel 24 .

[0040] It can be seen from the above description that the number of the slots 241 on a single edge magnet 24 can be selected and set according to actual needs.

[0041] Furthermore, the flange 251 is formed by bending a partial area of ​​the edge washer 25 .

[0042] It can be seen from the above description that the flange 251 is easy to form and simple to manufacture.

[0043] Furthermore, the flange 251 is connected to the edge washer 25 via a bending portion 252 .

[0044] It can be seen from the above description that after the flange 251 is bent and formed, a bent portion 252 is naturally formed at the connection between the flange 251 and the edge washer 25 .

[0045] Furthermore, the edge washer 25 and the basin frame 1 are an integrated structure formed by insert injection molding, and a partial area of ​​the basin frame 1 covers the outer arc surface of the bending portion 252 .

[0046] It can be seen from the above description that the contact area between the basin frame 1 and the edge washer 25 is large, and the basin frame 1 and the edge washer 25 can form a stable connection.

[0047] Furthermore, the flange 251 is disposed close to the outer edge of the edge washer 25 .

[0048] From the above description, it can be seen that the flange 251 is close to the outer edge of the side washer 25, which can facilitate the forming of the flange 251 and enable the slot 241 on the side magnetic steel 24 to be closer to the outside of the sound unit, thereby reducing the performance loss of the magnetic circuit assembly 2 caused by the setting of the slot 241.

[0049] An electronic device comprises the above-mentioned sound generating unit.

[0050] From the above description, it can be seen that the sound unit in the electronic device has good structural stability and excellent anti-fall performance.

[0051] Embodiment 1

[0052] Please refer to Figures 1 to 4 , Embodiment 1 of the present utility model is: an electronic device, the electronic device includes a sound unit, and the electronic device can be a mobile phone, a tablet computer, a walkie-talkie, a game controller, a wearable device, etc.

[0053] The sound unit includes a basket 1, a diaphragm assembly (not shown), a voice coil (not shown) and a magnetic circuit assembly 2, wherein the diaphragm assembly and the magnetic circuit assembly 2 are respectively connected to the basket 1, the voice coil is located in the basket 1 and connected to the diaphragm assembly, the magnetic circuit assembly 2 includes a yoke 21 and a central magnetic structure and a side magnetic structure respectively connected to the yoke 21, the central magnetic structure is located between at least one group of two side magnetic structures arranged opposite to each other, and a magnetic gap is formed between the central magnetic structure and the side magnetic structure for the voice coil to move.

[0054] The central magnetic structure includes a central magnetic steel 22 and a central washer 23, wherein the central magnetic steel 22 connects the central washer 23 and the yoke 21, and the side magnetic structure includes a side magnetic steel 24 and a side washer 25, wherein the side washer 25 is fixedly connected to the basin frame 1, and the side magnetic steel 24 is fixedly connected to the yoke 21, wherein the side washer 25 has a flange 251 bent toward the yoke 21, and the side magnetic steel 24 has a slot 241 for inserting the flange 251;

[0055] The sound-emitting unit also includes a glue layer 3, and the glue layer 3 includes a first part 31 and a second part 32, wherein the first part 31 contacts the bottom surface of the edge washer 25 and the top surface of the edge magnetic steel 24 respectively, and the second part 32 is located in the slot 241, and the second part 32 contacts the flange 251 and the edge magnetic steel 24 respectively.

[0056] To facilitate assembly and manufacture of the sound unit, preferably, the first portion 31 of the adhesive layer 3 is connected to the second portion 32 of the adhesive layer 3 .

[0057] The second portion 32 covers at least one wall surface of the flange 251. Preferably, the second portion 32 covers the entire area of ​​the flange 251 located in the slot 241. Specifically, the second portion 32 covers the entire area of ​​the peripheral wall of the flange 251 and the bottom surface of the flange 251, so that the bonding area between the side magnetic steel 24 and the side washer 25 can be increased to the greatest extent.

[0058] One or more slots 241 are provided on the same edge magnetic steel 24. When the edge magnetic steel 24 is only provided with one slot 241, the overall volume of the edge magnetic steel 24 is reduced less, and the magnetic field strength of the magnetic circuit component 2 is large. When the edge magnetic steel 24 is only provided with multiple slots 241, each slot 241 is correspondingly provided with the flange 251. At this time, the bonding area between the edge magnetic steel 24 and the edge washer 25 is large, and the structural stability of the magnetic circuit component 2 is better.

[0059] The flange 251 is formed by bending a partial area of ​​the edge washer 25 . Specifically, the flange 251 is connected to the edge washer 25 via a bending portion 252 .

[0060] In order to facilitate processing and improve the stability of the connection between the basin frame 1 and the edge washer 25, the edge washer 25 and the basin frame 1 are an integrated structure formed by insert injection molding, such as Figure 1 As shown, preferably, a partial area of ​​the basin frame 1 covers the outer arc surface of the bending portion 252 .

[0061] As a preferred implementation, the slot 241 and the flange 251 are arranged close to the outer edge of the edge washer 25 .

[0062] In summary, the sound unit provided by the utility model has a novel structure, the connection strength between the side washer and the side magnetic steel is strong, the structural stability of the sound unit is good, and the anti-fall performance is excellent.

[0063] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sound generating unit, characterized in that: include basin stand; A magnetic circuit assembly, the magnetic circuit assembly comprising a yoke, an edge magnetic steel and an edge washer, the edge washer is fixedly connected to the basin frame, the edge magnetic steel is fixedly connected to the yoke, the edge washer has a flange bent toward the yoke, and the edge magnetic steel has a slot for inserting the flange; The adhesive layer includes a first part and a second part, the first part contacts the bottom surface of the edge washer and the top surface of the edge magnetic steel respectively, and the second part is located in the slot, and the second part contacts the flange and the edge magnetic steel respectively.

2. The sound generating unit according to claim 1, characterized in that: The first portion is connected to the second portion.

3. The sound generating unit according to claim 1, characterized in that: The second portion covers at least one wall surface of the flange.

4. The sound generating unit according to claim 3, characterized in that: The second portion covers the entire area of ​​the flange located in the slot.

5. The sound generating unit according to claim 1, characterized in that: One or more slots are arranged on the same side magnetic steel.

6. The sound generating unit according to claim 1, characterized in that: The flange is formed by bending a partial area of ​​the edge washer.

7. The sound generating unit according to claim 6, characterized in that: The flange is connected to the edge washer via a bending portion.

8. The sound generating unit according to claim 7, characterized in that: The edge washer and the basin frame are an integrated structure formed by insert injection molding, and a partial area of ​​the basin frame covers the outer arc surface of the bending portion.

9. The sound generating unit according to claim 1, characterized in that: The flange is arranged close to the outer edge of the edge washer.

10. An electronic device, characterized in that The invention comprises the sound-emitting unit as described in any one of claims 1 to 9.

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