Sound production unit

Abstract

The utility model discloses a sound production unit, which comprises a basin stand and a yoke, and is characterized in that the basin stand comprises a frame body and a positioning column connected with the frame body; the yoke comprises a body and an enclosure bulkhead which are connected, the body is provided with a contact area used for abutting against the end face of the positioning column, the enclosure bulkhead is of a semi-surrounding structure arranged along the edge of the contact area, and the contact area and the inner surface of the enclosure bulkhead are both bonded with the positioning column. The sound production unit is novel in structure, the enclosure bulkhead of the semi-enclosed structure facilitates accurate positioning of the basin stand and the yoke, the positioning column can be wrapped to a certain extent, external sharp objects are prevented from damaging the positioning column to cause badness, the effect of protecting the positioning column is exerted, and the inner surface of the enclosure bulkhead is bonded with the positioning column, so that the sound production efficiency is improved. The bonding area of the frame and the yoke is effectively increased, so that the bonding force between the frame and the yoke is improved, the structural strength of the sounding unit is improved, and the risk of accidental separation of the frame and the yoke is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, and particularly to a sounding unit. Background Art

[0002] The sounding unit includes a chassis and a vibration assembly and a magnetic circuit assembly respectively connected to the chassis. The magnetic circuit assembly includes a yoke. The chassis has positioning posts, and the yoke has positioning grooves that cooperate with the positioning posts. The cooperation of the positioning posts and the positioning grooves can enable the chassis and the yoke to achieve precise positioning. In the prior art, the positioning posts and the yoke are often adhesively fixed. However, the adhesive area between the yoke and the positioning posts is small, and during the drop test of the sounding unit, the yoke and the chassis are likely to separate. That is to say, the existing sounding unit has the problem of unstable structure. Summary of the Utility Model

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

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a sounding unit, including:

[0005] A chassis, the chassis includes a frame body and positioning posts connecting the frame body;

[0006] A yoke, the yoke includes a connected body and a surrounding wall. The body has a contact area for abutting against the end face of the positioning post. The surrounding wall is a semi-surrounding structure arranged along the edge of the contact area. The contact area and the inner surface of the surrounding wall are both adhesively connected to the positioning post.

[0007] In one embodiment, the surrounding wall is in an L shape.

[0008] In one embodiment, the body is rectangular, and the surrounding walls are provided at all four corners of the body.

[0009] In one embodiment, the end of the surrounding wall far from the body abuts against the frame body.

[0010] In one embodiment, the end of the surrounding wall far from the body is adhesively connected to the frame body.

[0011] In one embodiment, the surrounding wall and the body are an integral structure formed by processing a metal sheet.

[0012] In one embodiment, the yoke further includes a flanging connected to the body, and the flanging is adhesively connected to the frame body.

[0013] In one embodiment, the connection part between the flanging and the body is located at the edge of the body.

[0014] In one embodiment, the flanging is a bending structure formed by bending a partial area of the body.

[0015] The beneficial effects of the present utility model are as follows: The structure of the present sounding unit is novel. The surrounding wall of the semi-enclosed structure facilitates the precise positioning of the chassis and the yoke, and can cover the positioning posts to a certain extent, preventing external sharp objects from damaging the positioning posts and causing defects, thus playing the role of protecting the positioning posts. Moreover, the inner surface of the surrounding wall is bonded to the positioning posts, effectively increasing the bonding area between the chassis and the yoke, thereby improving the bonding force between the chassis and the yoke, being conducive to improving the structural strength of the sounding unit, and reducing the risk of accidental separation between the chassis and the yoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic structural diagram of the sounding unit according to Embodiment 1 of the present utility model;

[0018] Figure 2 It is a partial exploded view of the sounding unit according to Embodiment 1 of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the yoke in the sounding unit according to Embodiment 1 of the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Chassis; 11. Frame body; 12. Positioning post;

[0022] 2. Voice coil;

[0023] 3. Yoke; 31. Body; 311. Contact area; 32. Surrounding wall; 33. Flanging;

[0024] 4. Central magnetic structure;

[0025] 5. Edge magnetic structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings.

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0030] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] Please refer to Figures 1 to 3, Embodiment 1 of the present utility model is as follows: a sound generating unit, including a chassis 1, a vibration assembly and a magnetic circuit assembly respectively connected to the chassis 1. The vibration assembly includes a diaphragm assembly and a voice coil 2. The diaphragm assembly connects the chassis 1 and the voice coil 2. The magnetic circuit assembly includes a yoke 3, a central magnetic structure 4 and a side magnetic structure 5 respectively arranged on the yoke 3. A magnetic gap for the voice coil 2 to move is formed between the central magnetic structure 4 and the side magnetic structure 5.

[0034] The chassis 1 includes a frame body 11 and a positioning column 12 connecting the frame body 11. The yoke 3 includes a connected body 31 and a surrounding wall 32. The body 31 has a contact area 311 for abutting against the end face of the positioning column 12. The surrounding wall 32 is a semi-surrounding structure arranged along the edge of the contact area 311. The contact area 311 and the inner surface of the surrounding wall 32 are both bonded to the positioning column 12.

[0035] In this embodiment, the positioning column 12 is in a rectangular column shape. Therefore, the surrounding wall 32 is in an L shape. In other embodiments, when the positioning column 12 is in a cylindrical shape, the surrounding wall 32 can be in an arc shape. It can be seen that the specific structure of the surrounding wall 32 needs to adapt to the shape of the positioning column 12.

[0036] The body 31 is in a rectangular shape, and the surrounding walls 32 are provided at four corners of the body 31. Correspondingly, the frame body 11 is connected with four positioning columns 12, and the four positioning columns 12 are connected to the four surrounding walls 32 in a one-to-one correspondence.

[0037] As a preferred implementation manner, the end of the surrounding wall 32 away from the body 31 abuts against the frame body 11. In this way, the surrounding wall 32 plays a role in supporting the yoke 3 and the chassis 1, sharing the stress received by the positioning column 12, which is beneficial to improving the structural stability of the sound generating unit to a greater extent.

[0038] To improve the connection strength between the chassis 1 and the yoke 3 to a greater extent, preferably, the end of the surrounding wall 32 away from the body 31 is adhesively connected to the frame body 11.

[0039] During actual production, the surrounding wall 32 and the body 31 are an integral structure formed by processing a metal plate.

[0040] Optionally, the yoke 3 further includes a flanging 33 connected to the body 31. The flanging 33 is bonded to the frame body 11. The connection part of the flanging 33 and the body 31 is located at the edge of the body 31. Preferably, the flanging 33 is a bending structure formed by bending a part of the area of the body 31. The flanging 33 can play a role in guiding magnetism and can replace the side magnetic structure 5 in the magnetic circuit assembly in an actual product.

[0041] The above are only optional embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. Sound generating unit, characterized in that: Including A basin stand, the basin stand includes a frame body and positioning columns connecting the frame body; A yoke iron, the yoke iron includes a connected body and a surrounding wall, the body has a contact area for abutting against the end face of the positioning column, the surrounding wall is a semi-surrounding structure arranged along the edge of the contact area, and both the contact area and the inner surface of the surrounding wall are bonded to the positioning column.

2. The sound generating unit according to claim 1, wherein: The surrounding wall is in an L shape.

3. The sound generating unit according to claim 1, wherein: The body is rectangular, and the surrounding walls are provided at all four corners of the body.

4. The sound generating unit according to claim 1, wherein: One end of the surrounding wall away from the body abuts against the frame body.

5. The sound generating unit according to claim 4, wherein: One end of the surrounding wall away from the body is adhesively connected to the frame body.

6. The sound generating unit according to claim 1, wherein: The surrounding wall and the body are an integral structure formed by processing a piece of metal sheet.

7. The sound generating unit according to claim 1, wherein: The yoke iron further includes a flange connected to the body, and the flange is bonded to the frame body.

8. The sound generating unit according to claim 7, wherein: The connection part of the flange and the body is located at the edge of the body.

9. The sound generating unit according to claim 7, wherein: The flange is a bending structure formed by bending a partial area of the body.

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