Loudspeaker module and electronic equipment

Abstract

The utility model discloses a loudspeaker module and an electronic device, the loudspeaker module comprises a housing, the housing comprises a base body and an enclosing wall, the base body and the enclosing wall are connected to form a first area used for forming a rear cavity, and the inner wall of the enclosing wall is provided with an expansion hole communicated with the first area. The enclosure wall of the shell of the loudspeaker module is provided with the expansion hole communicated with the rear cavity of the loudspeaker module, the volume of the rear cavity of the loudspeaker module is increased due to the existence of the expansion hole, the bass effect of the loudspeaker module is improved, and the acoustic performance of the loudspeaker module is improved; moreover, compared with the existing scheme of enlarging the rear cavity of the loudspeaker module, the loudspeaker module has the advantages of lower manufacturing cost and higher market competitiveness.

Description

Technical Field

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

[0002] As electronic devices are constantly updated, the performance requirements of electronic devices are getting higher and higher, and the size of electronic devices is getting smaller and smaller. The speaker module is also shifting from the original large size to the small size.

[0003] When the volume of the back cavity is not enough, traditional speaker modules often choose to design injection-molded steel sheets to increase the volume of the cavity. If the volume of the back cavity still cannot meet the requirements, it is usually necessary to consider using a full metal shell to increase the volume of the back cavity to a greater extent. However, the full metal shell process is complicated, requires laser welding, and invests a lot of money, and the efficiency will be lower, which will undoubtedly increase the production cost of the speaker module. Utility Model Content

[0004] The main purpose of the utility model is to provide a novel low-cost loudspeaker module and an electronic device having the loudspeaker module, aiming to solve the problem of insufficient rear cavity volume of the existing loudspeaker module.

[0005] In order to solve the above technical problems, the first technical solution adopted by the utility model is: a speaker module, comprising:

[0006] The shell comprises a base and a surrounding wall, wherein the base and the surrounding wall are connected to form a first area for forming a rear cavity, and an inner wall of the surrounding wall is provided with a capacity expansion hole communicating with the first area.

[0007] In one embodiment, a speaker unit is further included, and the speaker unit is fixedly mounted on the housing and located in the area enclosed by the wall.

[0008] In one embodiment, an end surface of the wall away from the base is a mounting surface.

[0009] In one embodiment, the number of the expansion holes is one or more.

[0010] In one embodiment, the housing is an injection-molded part.

[0011] In one embodiment, the base body has a volume block, the volume block is located outside the surrounding wall and connected to the surrounding wall, and one end of the expansion hole extends into the volume block.

[0012] In one embodiment, a mounting hole is provided on the volume block.

[0013] In one embodiment, an opening is provided on a surface of the base away from the surrounding wall, the opening is connected to the first area and the expansion hole, and a steel sheet is provided at the opening, and the steel sheet closes the opening.

[0014] In order to solve the above technical problems, the second technical solution adopted by the present invention is: an electronic device includes the above speaker module.

[0015] The beneficial effects of the present invention are as follows: the wall of the outer shell of the speaker module has an expansion hole connected to the rear cavity of the speaker module. The existence of the expansion hole increases the volume of the rear cavity of the speaker module, which is beneficial to improving the bass effect of the speaker module and enhancing the acoustic performance of the speaker module. Moreover, compared with the existing solution of increasing the rear cavity of the speaker module, the manufacturing cost of the speaker module is lower and more competitive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a speaker module according to Embodiment 1 of the present utility model;

[0018] Figure 2 A cross-sectional view of a speaker module according to Embodiment 1 of the present utility model;

[0019] Figure 3 It is a cross-sectional view of the speaker module of the second embodiment of the present utility model.

[0020] Description of Figure Numbers:

[0021] 1. housing; 11. base; 111. volume block; 112. mounting hole; 12. wall; 121. expansion hole; 122. mounting surface; 13. first area;

[0022] 2. Speaker unit;

[0023] 3. Steel sheet. DETAILED DESCRIPTION

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

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

[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 components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory 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 this utility model.

[0029] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Embodiment 1

[0031] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present utility model is: an electronic device having a sound-generating function, including but not limited to a mobile phone, a computer, a smart watch, a game controller, a walkie-talkie, etc.

[0032] The speaker module includes a shell 1 and a speaker unit 2 fixedly mounted on the shell 1, the shell 1 includes a base 11 and a wall 12, the speaker unit 2 is located in the area enclosed by the wall 12, the base 11 is connected to the wall 12 to form a first area 13 for forming a rear cavity, and the inner wall of the wall 12 is provided with an expansion hole 121 connected to the first area 13.

[0033] In this embodiment, the base 11 has a window, the speaker unit 2 is arranged corresponding to the window, the speaker unit 2 is sealed and connected to the edge of the window, and the sound-emitting surface of the speaker unit 2 is exposed through the window.

[0034] The end surface of the wall 12 away from the base 11 is a mounting surface 122. Optionally, the speaker module is a half-cavity speaker module. In the electronic device, the mounting surface 122 is in contact with and sealed to the middle frame or other structural parts of the electronic device. In detail, the mounting surface 122 forms a continuous and uninterrupted ring frame area with the middle frame or other structural parts of the electronic device.

[0035] In this embodiment, the housing 1 is an injection molded part, and the expansion hole 121 is formed by a slider structure or a core pulling structure of the injection mold. It can be seen that the speaker module achieves an increase in the volume of the rear cavity without using a full metal shell structure, effectively controlling the manufacturing cost of the speaker module.

[0036] The number of the capacity expansion holes 121 is one or more, that is, the number of the capacity expansion holes 121 can be set according to actual needs.

[0037] In some products, the base 11 has a volume block 111, and the volume block 111 is located on the outside of the enclosure 12 and connected to the enclosure 12. In order to increase the rear cavity volume of the speaker module to a greater extent, one end of the expansion hole 121 optionally extends into the volume block 111, so that the volume block 111 can also be fully utilized. It should be noted that in a specific product, the volume block 111 can be a structure for supporting and installing other devices, a structure for increasing the installation area, or a structure for connecting other devices. For example, in this embodiment, the volume block 111 is provided with a mounting hole 112, and the housing 1 can be connected to other structural parts in the electronic device through fasteners passing through the mounting hole 112.

[0038] Embodiment 2

[0039] Please refer to Figure 3, Embodiment 2 of the present utility model is a parallel technical solution of Embodiment 1, and is different from Embodiment 1 in that: the housing 1 is not a fully-injected body formed by integral injection molding. In this embodiment, an opening is provided on the surface of the base 11 away from the wall 12, and the opening is connected to the first area 13 and the expansion hole 121. A steel sheet 3 is provided at the opening, and the steel sheet 3 closes the opening, so that the volume of the rear cavity of the speaker module can be increased to a greater extent, thereby further improving the bass effect of the speaker module. In addition, due to the existence of the opening, the expansion hole 121 can be formed by a non-slider structure / core-pulling structure molding method, which is conducive to simplifying the structure of the injection mold and reducing the design and manufacturing cost of the injection mold.

[0040] In this embodiment, the steel sheet 3 and the housing 1 are an integrated structure formed by insert injection molding.

[0041] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used 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 The shell comprises a base and a surrounding wall, wherein the base and the surrounding wall are connected to form a first area for forming a rear cavity, and an inner wall of the surrounding wall is provided with a capacity expansion hole communicating with the first area.

2. The speaker module according to claim 1, characterized in that: It also includes a speaker unit, which is fixedly mounted on the housing and located in the area enclosed by the wall.

3. The speaker module according to claim 1, characterized in that: The end surface of the enclosure away from the base is a mounting surface.

4. The speaker module according to claim 1, characterized in that: The number of the expansion holes is one or more.

5. The speaker module according to claim 1, characterized in that: The shell is an injection-molded part.

6. The speaker module according to claim 1, characterized in that: The base body has a volume block, the volume block is located outside the surrounding wall and connected to the surrounding wall, and one end of the expansion hole extends into the volume block.

7. The speaker module according to claim 6, characterized in that: The volume block is provided with a mounting hole.

8. The speaker module according to claim 1, characterized in that: An opening is provided on the surface of the base body away from the surrounding wall, the opening is connected to the first area and the expansion hole, and a steel sheet is provided at the opening, the steel sheet closes the opening.

9. An electronic device, characterized in that: A speaker module comprising any one of claims 1-8.

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