Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a basin stand, a side washer and a yoke, the side washer and the basin stand are in an integrated structure formed by insert injection molding, and the side washer is provided with a bending pin; and the yoke is in contact with the bending pin and is welded with the bending pin. The sounding unit is novel in structure, and the edge washer which is integrally injection-molded with the basin stand is provided with the bending pin which is used for being welded with the yoke, so that the binding force of the basin stand and the yoke is effectively improved, the structural stability of the sounding unit is improved, and the risk that the yoke is accidentally separated from the basin stand is reduced.

Description

Technical Field

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

[0002] The sound unit includes a frame, a vibration assembly, and a magnetic circuit assembly connected to the frame. The magnetic circuit assembly includes a yoke. The frame has positioning posts, and the yoke has positioning slots that mate with the posts. The mates between the posts and slots allow for precise positioning of the frame and yoke. In existing technology, the posts and yoke are often bonded together. However, the bonding area between the yoke and the posts is small, making it easy for the yoke to separate from the frame during a drop test. This means that existing sound units suffer from structural instability. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a sound unit in which the yoke and the basin frame are not easily separated.

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

[0005] basin rack;

[0006] A side washer, wherein the side washer and the basin frame are an integrated structure formed by insert injection molding, and the side washer has a bent leg;

[0007] A yoke is provided, wherein the yoke contacts the bending leg and is welded to the bending leg.

[0008] In one embodiment, the basin frame has a positioning column, and the positioning column is bonded to the yoke.

[0009] In one embodiment, the edge washer includes a flat plate portion, and the bent legs are connected to outer edges of the flat plate portion.

[0010] In one embodiment, the side magnetic steel is further included, wherein the top of the side magnetic steel is bonded to the flat plate portion, and the bottom of the side magnetic steel is bonded to the yoke.

[0011] In one embodiment, the edge magnetic steel has an avoidance groove for avoiding the bending leg.

[0012] In one embodiment, the bending legs are correspondingly provided on two opposite sides of the sound-emitting unit.

[0013] In one embodiment, the bending legs located on opposite sides of the sound unit are arranged opposite to each other.

[0014] In one embodiment, the bending leg is a bending structure formed by bending a partial area of the flat plate portion.

[0015] In one embodiment, a pressing groove is provided on the bottom surface of the yoke, and the bending leg is provided corresponding to the pressing groove.

[0016] The beneficial effects of the present invention are that the sound unit has a novel structure, and the edge washer, which is integrally injection-molded with the basin frame, has a bent foot for welding with the yoke, which effectively improves the bonding strength between the basin frame and the yoke, is beneficial to improving the structural stability of the sound unit, and reduces the risk of accidental separation of the yoke and the basin frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a cross-sectional view of the sound unit of the first embodiment of the present invention.

[0019] Description of Figure Numbers:

[0020] 1. Basin stand; 11. Positioning column;

[0021] 2. Magnetic circuit assembly; 21. Yoke; 211. Pressed groove; 22. Center magnetic structure; 23. Side magnetic structure; 231. Side magnetic steel; 2311. Avoidance groove; 232. Side washer; 2321. Flat plate; 2322. Bend leg;

[0022] 3. Diaphragm assembly;

[0023] 4. Voice coil. DETAILED DESCRIPTION

[0024] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0028] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0030] Example 1

[0031] Please refer to Figure 1 , embodiment 1 of the present utility model is: a sound unit, including a basin 1 and a magnetic circuit component 2 and a vibration component respectively connected to the basin 1, the vibration component including a diaphragm component 3 and a voice coil 4, the diaphragm component 3 connects the voice coil 4 and the basin 1, the magnetic circuit component 2 includes a yoke 21 and a central magnetic structure 22 and a side magnetic structure 23 respectively arranged on the yoke 21, a magnetic gap is formed between the central magnetic structure 22 and the side magnetic structure 23 for the movement of the voice coil 4, the central magnetic structure 22 includes a central magnetic steel and a central washer, the central magnetic steel is respectively glued to the yoke 21 and the center washer, the side magnetic structure 23 includes a side magnetic steel 231 and a side washer 232, the side magnetic steel 231 is respectively glued to the side washer 232 and the yoke 21.

[0032] The side washer 232 and the basin frame 1 are an integrated structure formed by insert injection molding. The side washer 232 has a bending leg 2322 . The yoke 21 contacts the bending leg 2322 and is welded to the bending leg 2322 .

[0033] The edge washer 232 includes a flat plate portion 2321 , and the bending leg 2322 is connected to the outer edge of the flat plate portion 2321 . Specifically, the bending leg 2322 can be considered as a bending structure formed by bending a partial area of the flat plate portion 2321 .

[0034] The top of the side magnetic steel 231 is bonded to the flat plate portion 2321 , and the bottom of the side magnetic steel 231 is bonded to the yoke 21 .

[0035] To increase the volume of the side magnetic steel 231 and thereby improve the performance of the sound unit, the side magnetic steel 231 preferably has an escape groove 2311 for circumventing the bent legs 2322. Specifically, the escape groove 2311 is located on the outer wall of the side magnetic steel 231 and connects the top and bottom surfaces of the side magnetic steel 231. The location of the escape groove 2311 on the outer wall of the side magnetic steel 231 can minimize the impact of the escape groove 2311 on the magnetic field strength of the side magnetic steel 231. In this embodiment, the bent legs 2322 are exposed.

[0036] The basin frame 1 has a positioning post 11, which is bonded to the yoke 21. The presence of the positioning post 11 allows the basin frame 1 and the yoke 21 to be more accurately positioned, while also significantly enhancing the bonding strength between the basin frame 1 and the yoke 21. In this embodiment, a portion of the wall surface of the positioning post 11 is bonded and fixed to the yoke 21.

[0037] To ensure a more balanced connection between the basin frame 1 and the yoke 21, the sound unit is preferably provided with corresponding bending legs 2322 on both sides thereof. Furthermore, the bending legs 2322 on the two sides thereof are preferably arranged opposite each other. In this embodiment, the sound unit has two bending legs 2322 spaced apart on one side thereof.

[0038] The bottom surface of the yoke 21 is provided with a pressing groove 211, and the bending leg 2322 is arranged corresponding to the pressing groove 211. In detail, the bottom surface of the bending leg 2322 contacts the top surface of the yoke 21. When the yoke 21 and the bending leg 2322 are welded from the bottom surface of the yoke 21, the presence of the pressing groove 211 can make the yoke 21 and the bending leg 2322 easier to weld and fix. At the same time, the pressing groove 211 can also play the role of accommodating welding points, which is beneficial to the size control of the sound unit.

[0039] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: include basin rack; A side washer, wherein the side washer and the basin frame are an integrated structure formed by insert injection molding, and the side washer has a bent leg; a yoke, the yoke contacting the bending leg and being welded to the bending leg; The edge washer comprises a flat plate portion, and the bent leg is connected to an outer edge of the flat plate portion; It also includes side magnets, the top of the side magnets is bonded to the flat plate portion, the bottom of the side magnets is bonded to the yoke, and the side magnets have avoidance grooves for avoiding the bending legs.

2. The sound unit according to claim 1, characterized in that: The basin frame has a positioning column, and the positioning column is bonded to the yoke.

3. The sound unit according to claim 1, wherein: The bending legs are correspondingly provided on two opposite sides of the sound-generating unit.

4. The sound unit according to claim 3, characterized in that: The bending legs located on opposite sides of the sound unit are arranged opposite to each other.

5. The sound unit according to claim 1, characterized in that: The bending leg is a bending structure formed by bending a partial area of the flat plate portion.

6. The sound unit according to claim 1, characterized in that: A pressing groove is provided on the bottom surface of the yoke, and the bending leg is arranged corresponding to the pressing groove.

Images