Loudspeaker module

Abstract

The utility model discloses a loudspeaker module, which comprises an upper shell, a lower shell, a loudspeaker monomer and foam, an elastic hook is arranged on the upper shell, and a welding line is arranged at the bottom end of the upper shell; the lower shell comprises a bottom plate and a lower enclosure frame which are connected, the top end of the lower enclosure frame is provided with a lower extension part extending upwards and a welding area used for being welded with the welding line, the welding area is located on the inner side of the lower extension part, the inner wall of the lower extension part is provided with a hook hanging position matched with the elastic hook, and the upper shell and the lower shell are subjected to ultrasonic welding to form a module shell; the loudspeaker monomer is installed in the module housing, and the edge of the sound production surface of the loudspeaker monomer abuts against the lower housing. And the foam respectively abuts against the upper shell and the loudspeaker single body. In the loudspeaker module, the upper shell and the lower shell can be pre-fixed through the cooperation of the elastic hooks and the hook hanging positions, the situation that the subsequent ultrasonic welding effect is affected due to the fact that the upper shell and the lower shell are not placed in place due to the influence of foam elasticity is avoided, the effectiveness of ultrasonic welding is guaranteed, and the welding yield is improved.

Description

Technical Field

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

[0002] The speaker module includes a module housing and a speaker unit installed in the module housing. The module housing generally includes an upper shell and a lower shell that are ultrasonically welded. To improve the stability of the speaker unit assembly, some speaker modules also have foam inside the module housing that contacts the magnetic circuit components of the speaker unit. In actual products, the foam is always in a compressed state. As the foam is elastic, it will exert a rebound force on the upper shell during ultrasonic welding of the upper and lower shells, causing the pre-assembly gap between the upper and lower shells to exceed the preset range, affecting the ultrasonic welding effect and even causing ultrasonic welding failure, resulting in a reduced module housing welding yield in the speaker module. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a loudspeaker module with high ultrasonic welding yield.

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

[0005] An upper shell, wherein the upper shell is provided with an elastic hook and a welding line is provided at the bottom end of the upper shell;

[0006] A lower shell, the lower shell comprising a connected bottom plate and a lower frame, the top of the lower frame having a lower extension portion extending upward and a welding area for welding with the welding line, the welding area being located on the inner side of the lower extension portion, and the inner wall of the lower extension portion being provided with a hook position for cooperating with the elastic hook, the upper shell and the lower shell being ultrasonically welded to form a module shell;

[0007] A speaker unit is installed in the module housing, and an edge of a sound-emitting surface of the speaker unit abuts against the lower housing;

[0008] Foam, the foam respectively contacts the upper shell and the speaker unit.

[0009] In one embodiment, a first protrusion is provided on the upper shell, and the elastic hook is connected to the bottom of the first protrusion.

[0010] In one embodiment, the upper shell, the first boss, and the elastic hook are an integral structure formed by integral injection molding.

[0011] In one embodiment, the elastic hook includes an obliquely arranged hook arm, and the bottom end of the hook arm is connected to the first protrusion.

[0012] In one embodiment, a second protrusion is provided on the inner wall of the lower extension portion, and the lower portion of the second protrusion forms the hooking position.

[0013] In one embodiment, after the upper shell and the lower shell are covered, the end of the elastic hook away from the first protrusion is located below the second protrusion and contacts the second protrusion.

[0014] In one embodiment, the lower extension portion is in a ring frame shape.

[0015] In one embodiment, the elastic hooks are respectively provided on both sides of the upper shell.

[0016] In one embodiment, a placement cavity for installing the speaker unit is provided in the lower shell, the speaker unit located in the placement cavity and the lower shell are surrounded to form a front cavity, and a sound outlet connected to the front cavity is provided on the outer wall of the lower shell.

[0017] In one embodiment, the foam is disposed corresponding to a central area of ​​the speaker unit.

[0018] The beneficial effect of the present invention is that in the speaker module, the upper shell and the lower shell can be pre-fixed by the cooperation of the elastic hook and the hook hanging position, avoiding the upper shell and the lower shell being placed improperly due to the influence of the elastic force of the foam, which affects the subsequent ultrasonic welding effect, and is conducive to ensuring the effectiveness of ultrasonic welding and improving the welding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 This is a cross-sectional view of the speaker module according to the first embodiment of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic structural diagram of the upper shell of the speaker module in the first embodiment of the present utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0024] Description of Figure Numbers:

[0025] 1. Upper shell; 11. Elastic hook; 111. First protrusion; 112. Hook arm; 12. Welding line;

[0026] 2. Lower shell; 21. Bottom plate; 22. Lower frame; 23. Lower extension; 231. Second protrusion; 232. Hooking position; 24. Front cavity; 25. Sound outlet;

[0027] 3. Speaker unit;

[0028] 4. Foam. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1

[0036] Please refer to Figures 1 to 4 , the utility model embodiment 1 is: a speaker module, including an upper shell 1, a lower shell 2, a speaker unit 3 and a foam 4, the upper shell 1 is provided with an elastic hook 11, the bottom end of the upper shell 1 is provided with a welding line 12, the lower shell 2 includes a connected bottom plate 21 and a lower frame 22, the top of the lower frame 22 has a lower extension portion 23 extending upward and a welding area for welding with the welding line 12, the lower extension portion 23 is a ring frame shape, the welding area is located on the inner side of the lower extension portion 23, the lower extension A hook position 232 cooperating with the elastic hook 11 is provided on the inner wall of the extension part 23, and the upper shell 1 and the lower shell 2 are ultrasonically welded to form a module shell; the speaker unit 3 is installed in the module shell, and the edge of the sound-emitting surface of the speaker unit 3 contacts the lower shell 2; the foam 4 contacts the upper shell 1 and the speaker unit 3 respectively, and the foam 4 plays a shock-absorbing role, which can effectively prevent the speaker unit 3 from accidentally disconnecting from the module shell and detaching from the module shell.

[0037] In this embodiment, the upper shell 1 is provided with a first protrusion 111, and the elastic hook 11 is connected to the bottom of the first protrusion 111. To facilitate manufacturing, the upper shell 1, the first protrusion, and the elastic hook 11 are preferably an integrally injection-molded structure. Simply put, the elastic hook 11 includes an obliquely arranged hook arm 112, the bottom end of which is connected to the first protrusion 111.

[0038] Optionally, a second protrusion 231 is provided on the inner wall of the lower extension 23, and the lower portion of the second protrusion 231 forms the hooking position 232. When the upper shell 1 and the lower shell 2 are closed, the end of the elastic hook 11 away from the first protrusion 111 is located below the second protrusion 231 and contacts the second protrusion 231. In other embodiments, the hooking position 232 may be a slot structure.

[0039] The elastic hooks 11 are respectively provided on both sides of the upper shell 1 , so that the upper shell 1 and the lower shell 2 can be pre-fixed more stably.

[0040] Specifically, a placement cavity for installing the speaker unit 3 is provided in the lower shell 2, and the speaker unit 3 located in the placement cavity and the lower shell 2 are enclosed to form a front cavity 24. More specifically, the sound-emitting surface of the speaker unit 3 and the lower shell 2 are enclosed to form the front cavity 24, and a sound outlet 25 connected to the front cavity 24 is provided on the outer wall of the lower shell 2. It is easy to understand that the sound outlet 25 is provided on the lower frame 22.

[0041] In this embodiment, the number of the foam pad 4 is one, and the foam pad 4 is arranged corresponding to the central area of ​​the speaker unit 3. In other embodiments, the number of the foam pad 4 can also be multiple, and in this case, the multiple foam pads 4 are arranged at intervals.

[0042] 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 speaker module, characterized in that: include An upper shell, wherein the upper shell is provided with an elastic hook and a welding line is provided at the bottom end of the upper shell; A lower shell, the lower shell comprising a connected bottom plate and a lower frame, the top of the lower frame having a lower extension portion extending upward and a welding area for welding with the welding line, the welding area being located on the inner side of the lower extension portion, and the inner wall of the lower extension portion being provided with a hook position for cooperating with the elastic hook, the upper shell and the lower shell being ultrasonically welded to form a module shell; A speaker unit is installed in the module housing, and an edge of a sound-emitting surface of the speaker unit abuts against the lower housing; Foam, the foam respectively contacts the upper shell and the speaker unit.

2. The speaker module according to claim 1, wherein: The upper shell is provided with a first protrusion, and the elastic hook is connected to the bottom of the first protrusion.

3. The speaker module according to claim 2, wherein: The upper shell, the first boss and the elastic hook are an integral structure formed by integral injection molding.

4. The speaker module according to claim 2, wherein: The elastic hook includes an obliquely arranged hook arm, and the bottom end of the hook arm is connected to the first protrusion.

5. The speaker module according to claim 2, wherein: A second protrusion is provided on the inner wall of the lower extension portion, and the lower portion of the second protrusion forms the hooking position.

6. The speaker module according to claim 5, wherein: After the upper shell and the lower shell are covered, the end of the elastic hook away from the first protrusion is located below the second protrusion and contacts the second protrusion.

7. The speaker module according to claim 1, wherein: The lower extension portion is in a ring frame shape.

8. The speaker module according to claim 1, wherein: The elastic hooks are respectively provided on both sides of the upper shell.

9. The speaker module according to claim 1, wherein: The lower shell is provided with a placement cavity for installing the speaker unit. The speaker unit located in the placement cavity and the lower shell are enclosed to form a front cavity. The outer wall of the lower shell is provided with a sound outlet connected to the front cavity.

10. The speaker module according to claim 1, wherein: The foam is arranged corresponding to the central area of ​​the speaker unit.

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