CN220653532U - Speaker module and electronic equipment - Google Patents

Abstract

The application discloses speaker module and electronic equipment belongs to speaker technical field. The speaker module includes: the rear cavity shell is provided with an avoidance hole, and the inner core is in sealing connection with the avoidance hole through the transition connecting piece; the avoidance hole has a first orifice and a second orifice opposite to each other; the partial structure of the inner core is positioned in the avoidance hole; at least a portion of the surface of the inner core facing the second orifice is flush with at least a portion of the end face of the second orifice. An electronic device includes: the shell is provided with a sound outlet, and a sound outlet channel of the speaker module is communicated with the sound outlet. The height difference between the inner core and the rear cavity shell in the related art can be limited, so that the thickness of the loudspeaker module can be further reduced.

Description

Speaker module and electronic equipment

Technical Field

The application relates to the technical field of speakers, in particular to a speaker module and electronic equipment.

Background

For mobile phones, notebook computers, tablet electric and other electronic equipment, in order to meet the use requirements, a speaker module is arranged, and the electronic equipment can sound through the speaker module so as to meet the hearing requirements of users. Along with the development of the demands of users and technologies, electronic devices are gradually developed in the direction of light and thin, and a speaker module is used as a component of the electronic device, which is a factor affecting the thinning of the whole device.

Taking the electronic equipment as an example of a mobile phone, a loudspeaker module in the mobile phone comprises an inner core and a rear cavity shell, in order to thin a loudspeaker, a design that a magnetic conduction yoke of the inner core is exposed is adopted, and in order to ensure sealing between the inner core and the rear cavity shell, a design that the surface of the magnetic conduction yoke is slightly lower than the outer surface of the rear cavity shell is adopted, so that a glue storage space is formed, sealing between the inner core and the rear cavity shell is realized by injecting glue into the glue storage space, and if the height difference is insufficient, the situation that the glue is less and poor in sealing of the rear cavity of the loudspeaker module is caused, or the situation that the glue is ultrahigh and interferes with a display screen or a battery cover of the electronic equipment is caused. However, due to the existence of the height difference, further thinning design of the speaker module is restricted.

Disclosure of Invention

The application provides a speaker module and electronic equipment to solve because have the existence of difference in height, restricted the problem of speaker module's thickness reduction.

The technical scheme is as follows:

the first aspect of the present application provides a speaker module, which includes: the rear cavity shell is provided with an avoidance hole, and the inner core is in sealing connection with the avoidance hole through the transition connecting piece;

The avoidance hole has a first orifice and a second orifice opposite to each other;

the partial structure of the inner core is positioned in the avoidance hole;

at least a portion of the surface of the inner core facing the second orifice is flush with at least a portion of the end face of the second orifice.

Through adopting above-mentioned scheme, set up transition connection piece between kernel and dodging the hole to realize the indirect connection between kernel and the back chamber casing, so make the kernel stretch into dodging the hole, the partial surface of kernel can flush with the partial terminal surface of second drill way, can remove the restriction of the difference in height between kernel and the back chamber casing among the correlation technique like this, thereby make the thickness of speaker module can further attenuate.

In some implementations, the transition piece includes a first overlap portion and a first support portion; the first lap joint part is connected with the inner core, one side edge of the first lap joint part is connected with one side edge of the first supporting part, and the other side edge of the first supporting part is connected with the rear cavity shell.

Through adopting above-mentioned scheme, first overlap joint portion is connected with the kernel, and first supporting part is connected with back chamber casing to be connected with back chamber casing in order to indirectly realize the kernel, because indirect connection is favorable to making the attenuate of the thickness of speaker module.

In some implementations, a mounting groove is formed between the transition connecting piece and the wall of the avoidance hole; and the mounting groove is filled with a sealant structure, so that the other side edge of the first supporting part is connected with the rear cavity shell.

By adopting the scheme, the first supporting part and the rear cavity shell are connected by filling the sealant structure in the mounting groove, so that the transition connecting piece and the rear cavity shell form a seal, and the sealing between the inner core and the rear cavity shell is ensured; in addition, the mounting groove formed in the way can have enough depth, thereby being beneficial to filling the needed quantity of the sealant and ensuring the sealing performance.

In some implementations, the first supporting portion has a supporting surface, an angle is formed between the supporting surface and a first direction, the first direction is parallel to a direction from the first orifice to the second orifice, the supporting surface and a hole wall of the avoidance hole enclose the mounting groove, and the supporting surface and the hole wall of the avoidance hole are respectively in contact with the sealing glue structure.

Through adopting above-mentioned scheme, be the angle with the first direction and set up the back, the axial slope setting of dodging the hole for the holding surface like this, the holding surface can have the deeper degree of depth with the mounting groove that the pore wall encloses, can pack the required sealed volume of gluing like this, guarantees the stability of being connected between transition piece and the back chamber casing to do benefit to the assurance leakproofness.

In some implementations, the transition piece further includes an intermediate portion through which one side of the first overlap portion is connected to one side of the first support portion;

the middle part is provided with a connecting surface, the first supporting part is provided with a supporting surface, and the connecting surface, the supporting surface and the wall of the avoidance hole enclose the mounting groove;

the connecting surface, the supporting surface and the hole wall of the avoidance hole are respectively contacted with the sealing glue structure.

Through adopting above-mentioned scheme, utilize the mid portion can improve the degree of depth of mounting groove, can fill the required sealed volume of gluing like this, guarantee the stability of being connected between transition connection piece and the back chamber casing to do benefit to the leakproofness.

In some implementations, the intermediate portion extends in a first direction that is parallel to a direction from the first aperture to the second aperture; the intermediate portion is bonded to the peripheral surface of the core.

Through adopting above-mentioned scheme, the axial of dodging the hole (or along dodging the degree of depth direction in hole) is followed to the intermediate part like this extends to the intermediate part is laminated mutually with the global of kernel, can further improve the degree of depth of mounting groove like this, can pack the required sealed volume of gluing like this, guarantees the stability of being connected between transitional coupling piece and the back chamber casing, thereby does benefit to the assurance leakproofness.

In some implementations, the angle between the support surface and the first direction is an acute angle.

Through adopting above-mentioned scheme, the mounting groove can have the degree of depth deeper like this, can pack the required sealed volume of gluing like this, guarantees the stability of being connected between transition piece and the back chamber casing to do benefit to the leakproofness of guaranteeing.

In some implementations, the transition piece further includes an extension, one side of the extension being connected to the other side of the first support;

the rear cavity shell comprises a third surface and a fourth surface, the third surface is opposite to the fourth surface, the first orifice is positioned on the third surface, and the second orifice is positioned on the fourth surface;

the orthographic projection of the extension part in the projection plane is coincident with the orthographic projection of the third surface in the projection plane, and the projection plane is perpendicular to the first direction.

Through adopting above-mentioned scheme, glue like this can flow into between extension and the third surface to increase the area of contact between seal gum structure and the back chamber casing, with the area of contact between seal gum structure and the transitional coupling spare, do benefit to the leakproofness of being connected between transitional coupling spare and the back chamber casing like this, and then improve the leakproofness that the kernel is connected with the back chamber casing.

In some implementations, the other side edge of the first support is embedded in the rear cavity housing.

Through adopting above-mentioned scheme, after the embedding of another side of first supporting part back chamber casing, guaranteed the connection stability between first supporting part and the back chamber casing on the one hand, on the other hand also guaranteed the sealing performance between kernel and the back chamber casing.

In some implementations, the first overlap has an adhesive face that adheres to the inner core.

Through adopting above-mentioned scheme, utilize the mode of bonding to realize that first overlap joint portion is connected with the kernel, convenient equipment.

In some implementations, the inner core includes a magnetically permeable yoke that is integrally formed with the first overlap.

Through adopting above-mentioned scheme, through making magnetic yoke and first overlap joint portion structure as an organic whole, can improve the stability of being connected between transition piece and the kernel like this, saved the bonding step of first overlap joint portion and magnetic yoke, simplified the equipment of speaker module.

In some implementations, the inner core includes a magnetically permeable yoke and a magnet, the magnetically permeable yoke having a first surface and a second surface, the first surface and the second surface being opposite;

The first surface is connected with the magnet;

the second surface comprises a lap surface and a center surface, the lap surface is arranged around the edge of the center surface, and a height difference exists between the lap surface and the center surface;

the first overlap is connected to the overlap surface and the central surface is flush with at least a portion of the end surface of the second aperture.

By adopting the scheme, the connection between the transition connecting piece and the inner core is facilitated, and the thickness of the loudspeaker module is reduced.

In some implementations, the rear cavity housing includes a third surface and a fourth surface, the third surface and the fourth surface being opposite, the first aperture being located at the third surface, the second aperture being located at the fourth surface;

the fourth surface comprises a plane part and a curved surface part, wherein the plane part and the curved surface part are provided with a height difference, and the center surface is flush with the plane part.

By adopting the scheme, the center surface on the magnetic yoke is flush with the plane part of the rear cavity shell.

In some implementations, the planar portion includes opposing first and second sub-planes that are respectively located on opposite sides of the second aperture, the first and second sub-planes being respectively flush with the central plane.

By adopting the scheme, the central surface on the magnetic yoke is at least flush with the first subplane and the second subplane at the second orifice.

In some implementations, the transition piece is a sheet-like structure.

By adopting the scheme, the transition connecting piece is convenient to be connected with the inner core and the rear cavity shell respectively.

In some implementations, the material of the transition piece is steel.

Through adopting above-mentioned scheme, can improve transition piece's life, guarantee the stability that kernel and back chamber casing are connected.

The second aspect of the present application provides an electronic device, which includes a housing and any one of the speaker modules, where the housing has a sound outlet, and a sound outlet channel of the speaker module is communicated with the sound outlet.

Through adopting above-mentioned scheme, after speaker module is applied to electronic equipment, set up transition connection spare between kernel and dodging the hole to realize the indirect connection between kernel and the back chamber casing, so make the kernel stretch into dodging the hole, the partial surface of kernel can flush with the at least partial terminal surface of second drill way, can remove the restriction of the difference in height between kernel and the back chamber casing among the correlation technique like this, thereby make the thickness of speaker module can be further the attenuate, thereby be favorable to electronic equipment's attenuate.

Drawings

Fig. 1 is a schematic structural view of a related art speaker module in which a yoke of a core is not exposed;

fig. 2 is a schematic diagram of a speaker module with a magnetic yoke of a core exposed in the related art;

fig. 3 is a schematic diagram of a speaker module in an embodiment of the present application;

fig. 4 is a schematic diagram of the speaker module when the core in the embodiment of the present application shows only the yoke and the magnet;

fig. 5 is a schematic view of another embodiment of a speaker module according to the present application;

fig. 6 is another schematic diagram of a speaker module in an embodiment of the present application;

fig. 7 is a schematic view of still another structure of a speaker module according to an embodiment of the present application;

fig. 8 is a schematic diagram of a speaker module with a transition piece embedded in a rear chamber housing according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a speaker module when the transition piece and the magnetic yoke are integrally formed in the embodiment of the present application;

fig. 10 is a schematic structural diagram of a speaker module according to an embodiment of the present application;

fig. 11 is a cross-sectional view of a speaker module in an embodiment of the present application;

FIG. 12 is an enlarged partial schematic view at A in FIG. 11;

FIG. 13 is a schematic view of the configuration of the rear cavity shell, transition piece and core of the present embodiment when mated;

FIG. 14 is a schematic view of a further view of the rear chamber housing, transition piece and core of an embodiment of the present application;

FIG. 15 is a schematic view of the transition piece and core mated in an embodiment of the present application;

FIG. 16 is a schematic view of a transition piece in an embodiment of the present application;

FIG. 17 is a schematic view of a transition piece in another perspective of an embodiment of the present application;

FIG. 18 is a schematic view of the rear chamber housing in an embodiment of the present application;

FIG. 19 is a schematic view of the structure of the core in the embodiment of the present application;

fig. 20 is a schematic structural diagram of an electronic device in an embodiment of the present application.

Wherein, the meanings represented by the reference numerals are respectively as follows:

10. a kernel; 11. a rear cavity housing; 12. a front cavity housing; 13. a front cavity; 14. a rear cavity; 15. sealing rubber rings;

101. a rear cavity housing; 102. a kernel; 103. a transition piece; 104. a first orifice; 105. a second orifice; 106. a front cavity housing; 107. a front cavity; 108. a sound emitting channel; 109. a first lap joint; 110. a first support portion; 111. a mounting groove; 112. a support surface; 113. a sealant structure; 114. an intermediate portion; 115. a connection surface; 116. a third surface; 117. a fourth surface; 118. an extension; 119. an adhesive surface; 120. a magnetic yoke; 121. a magnet; 122. a first surface; 123. a second surface; 124. a faying surface; 125. a center plane; 126. a planar portion; 127. a curved surface portion; 129. a first sub-plane; 130. a second sub-plane; 131. perforating; 132. an outlet; 133. avoidance holes; 134. a facing away surface; 201. a housing; 202. a display screen; 203. and a sound outlet hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

It should be understood that reference herein to "a plurality" means two or more. In the description of the present application, "/" means or, unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, for the purpose of facilitating the clear description of the technical solutions of the present application, the words "first", "second", etc. are used to distinguish between the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

In the related art, a speaker module is used as a component of an electronic device, which is a factor affecting the thinning of the whole device. Taking an example that the electronic device is a mobile phone, referring to fig. 1, a speaker module in the mobile phone includes a core 10, a rear cavity housing 11 and a front cavity housing 12; the inner core 10 is located in the space formed by matching the rear cavity shell 11 and the front cavity shell 12, the space is divided into a front cavity 13 and a rear cavity 14 by the inner core, in order to thin the thickness h of the speaker module, as shown in fig. 2, the design that a magnetic yoke of the inner core 10 is exposed is adopted, and in order to ensure the sealing between the inner core 10 and the rear cavity shell 11, the design that the surface of a magnetic yoke is slightly lower than the outer surface of the rear cavity shell 11 is adopted, so that the height difference between the surface of the magnetic yoke and the outer surface of the rear cavity shell 11 is more than 0.1mm, thereby forming a glue storage space 16, and sealing between the inner core 10 and the rear cavity shell 11 is realized by injecting glue into the glue storage space 16. However, the presence of the height difference is disadvantageous for further thinning of the speaker module.

Therefore, the embodiment of the application provides a speaker module and an electronic device to solve the above problems to a certain extent.

The speaker module and the electronic device provided in the embodiments of the present application are explained in detail below.

Referring to fig. 3, in one or more embodiments, the speaker module provided in the present application includes: the rear cavity shell 101, the inner core 102 and the transition connecting piece 103 are arranged, the rear cavity shell 101 is provided with an avoidance hole 133, and the inner core 102 is in sealing connection with the avoidance hole 133 through the transition connecting piece 103; the relief hole 133 has opposed first and second apertures 104, 105; part of the structure of the inner core 102 is located in the avoidance hole 133; at least a portion of the surface of the inner core 102 facing the second orifice 105 is flush with at least a portion of the end surface of the second orifice 105.

In at least one embodiment, the avoidance hole 133 is utilized to provide avoidance for the inner core, the transition connecting piece 103 is arranged between the inner core 102 and the avoidance hole 133 so as to realize indirect connection between the inner core 102 and the rear cavity shell 101, so that after the inner core 102 extends into the avoidance hole 133, the distance of the inner core 102 inserted into the avoidance hole 133 is increased, and part of the surface of the inner core 102 can be flush with at least part of the end surface of the second orifice 105, so that the limit of the height difference between the inner core and the rear cavity shell in the related art can be relieved, and the thickness of the speaker module can be further thinned; after the loudspeaker module is flush, the thickness of the loudspeaker module in the thickness direction is saved by more than 0.1 mm.

As shown in connection with fig. 10 and 11, in some embodiments, the speaker module is a micro speaker module, the speaker module further includes a front cavity housing 106, the rear cavity housing 101 is spliced with the front cavity housing 106 to form a housing 201 of the speaker module, the rear cavity housing 101 is a part of the housing 201 of the speaker module, which forms the housing 201 together with the front cavity housing 106 of the speaker module, the housing 201 has a receiving cavity, the inner core 102 is mounted in the receiving cavity, a front cavity 107 is formed between the inner core 102 and the front cavity housing 106, the front cavity housing 106 has a supporting position such that the inner core 102 is fixed in the receiving cavity, the front cavity housing 106 is provided with a sound outlet channel 108, and the sound outlet channel 108 is in communication with the front cavity 107; referring back to fig. 3, the rear chamber housing 101 has opposite inner and outer surfaces through which the relief holes 133 extend, with the inner surface facing the front chamber 107. The core 102 serves as a sound emitting portion of the speaker module, enabling the speaker module to occur and sound to be emitted from the sound emitting channel 108 of the speaker module when a diaphragm (not shown) of the core 102 vibrates. The relief hole 133 may be in the form of a through hole, so that the thickness of the speaker module is reduced after the inner core 102 extends into the relief hole 133. Since the escape hole 133 is a through hole, it penetrates the rear chamber housing 101, thereby forming the first orifice 104 and the second orifice 105; during installation, the inner core 102 can be inserted into the avoidance hole 133 through the first hole 104, so that at least part of the surface of one end of the inner core 102 can be flush with at least part of the end face of the second hole 105, a part of the structure of the inner core 102 is located in the avoidance hole 133, the rest part of the inner core 102 extends out of the first hole 104, and when a part of the surface of the inner core 102 facing the second hole 105 is level with the end face near the hole of the second hole 105, the avoidance hole 133 corresponding to the accommodation of the rear cavity shell 101 accommodates a part of the structure of the inner core 102, and the height of the inner core 102 extending out of the first hole 104 is reduced, so that the thinning of the whole loudspeaker module is facilitated. At least part of the end surface of the second orifice 105 is a part of the outer surface of the rear cavity housing 101, and at least part of the end surface of the second orifice 105 is a first preset surface including the surface of a set area in the vicinity of the second orifice 105, that is, a part of the surface of the inner core 102 facing the second orifice 105 is flush with a part of the surface of the end surface of the second orifice 105. At least a portion of the surface of the inner core 102 facing the second orifice 105 is a second predetermined surface such that at least a portion of the surface of the inner core 102 facing the second orifice 105 is flush with at least a portion of the end surface of the second orifice 105, that is, the second predetermined surface of the inner core 102 facing the second orifice 105 is flush with the first predetermined surface of the second orifice 105.

It should be noted that, in some other possible embodiments, the inner core 102 may be installed into the avoidance hole 133 by the second orifice 105, but it is also required that at least a part of the surface of one end of the inner core 102 is flush with at least a part of the end surface of the second orifice 105. In addition, the shape of the avoidance hole 133 is not limited, and the specific shape thereof may be determined according to the actual situation, for example: the shape of the avoidance hole 133 may be polygonal, circular, elliptical, or a closed pattern formed by combining a straight line and a curved line, or may not be a closed pattern.

Referring to fig. 3-8, and 12, in some embodiments, the transition piece 103 includes a first lap portion 109 and a first support portion 110; the first lap portion 109 is connected with the inner core 102, one side edge of the first lap portion 109 is connected with one side edge of the first supporting portion 110, and the other side edge of the first supporting portion 110 is connected with the rear cavity casing 101, so that the first lap portion 109 is connected with the inner core 102, and the first supporting portion 110 is connected with the rear cavity casing 101, so that the inner core 102 is connected with the rear cavity casing 101 conveniently, and thickness reduction of the loudspeaker module is facilitated due to indirect connection. In one embodiment, first landing 109 is coupled to inner core 102 to achieve a seal between first landing 109 and inner core 102; the first lap portion 109 is integrally formed with the first support portion 110, which facilitates the manufacture of the transition piece 103; the other side of the first supporting portion 110 is connected with the rear chamber housing 101 to achieve sealability between the first supporting portion 110 and the rear chamber housing 101.

Referring to fig. 3, 4, 6, 7, and 9, in some embodiments, the transition piece 103 has a mounting slot 111 between the walls of the relief hole 133; referring to fig. 5, the mounting groove 111 is filled with a sealant structure 113, so that the other side edge of the first supporting part 110 is connected with the rear cavity shell 101, and thus the sealant structure 113 is filled in the mounting groove 111 to realize connection between the first supporting part 110 and the rear cavity shell 101, so that a seal is formed between the transition connecting piece 103 and the rear cavity shell 101, and the sealing between the inner core 102 and the rear cavity shell 201 is ensured; in addition, the mounting groove 111 thus formed may have a sufficient depth to facilitate filling of a required amount of sealant and to ensure sealing performance. The sealant structure 113 is formed by fixing glue, and the connection between the first supporting part 110 and the rear cavity shell 101 and the sealing performance guarantee are realized through the sealant structure 113; the structure of the mounting groove 111 is mainly defined by the shape of the transition piece 103, so that the shape of the transition piece 103 is changed to determine the proper shape of the mounting groove 111, and the requirements of different scenes are met. The sealant structure 113 is not shown in fig. 3, 4, 5, 7, and 11.

Referring to fig. 3, fig. 4, fig. 6 and fig. 12, in some embodiments, the first supporting portion 110 has a supporting surface 112, where the supporting surface 112 is disposed at an angle with respect to a first direction (B-B direction), the first direction (B-B direction) is parallel to a direction from the first orifice 104 to the second orifice 105, the supporting surface 112 and a wall of the avoidance hole 133 enclose a mounting groove 111, the supporting surface 112 and the wall of the avoidance hole 133 are respectively in contact with the sealant structure 113, so that after the supporting surface 112 is disposed at an angle with respect to the first direction (B-B direction), the supporting surface 112 is disposed obliquely with respect to an axis of the avoidance hole 133, and the mounting groove 111 enclosed by the supporting surface 112 and the wall of the hole may have a deeper depth, so that a required amount of sealant may be filled, ensuring stability of connection between the transition piece 103 and the rear cavity housing 101, thereby facilitating ensuring tightness. In one embodiment, the first supporting portion 110 extends into the avoidance hole 133, the first direction (B-B direction) is parallel to the depth direction of the avoidance hole 133, the supporting surface 112 faces the hole wall of the avoidance hole 133, so that the supporting surface 112 and the hole wall can enclose the mounting groove 111, the mounting groove 111 is annular, in addition, since the supporting surface 112 is arranged at an angle with the depth direction of the avoidance hole 133, the hole wall of the avoidance hole 133 is parallel to the depth direction of the avoidance hole, the longitudinal section of the annular mounting groove 111 is approximately triangular, and the longitudinal section of the mounting groove 111 is parallel to the first direction (B-B direction); the other side of the first supporting portion 110 extends to the edge of the first orifice 104, which facilitates injection of glue into the mounting groove 111, reducing the amount of glue flowing out of a gap formed between the other side of the first supporting portion 110 and the edge of the first orifice 104.

The mounting groove 111 is annular, which means that the mounting groove 111 encloses a closed shape, which is substantially the same as the shape of the escape hole 133.

Referring to fig. 3 and 4, in some embodiments, the support surface 112 forms an acute angle with the first direction (B-B direction) so that the mounting groove 111 may have a deeper depth, so that a required amount of sealant may be filled, ensuring stability of the connection between the transition piece 103 and the rear cavity housing 101, and thus facilitating ensuring sealability.

Referring to fig. 5, 7, 9 and 12, in some embodiments, the transition piece 103 further includes an intermediate portion 114, and one side of the first overlap portion 109 is connected to one side of the first support portion 110 by the intermediate portion 114; the middle part 114 has a connection surface 115, the first support part 110 has a support surface 112, and the connection surface 115, the support surface 112 and the wall of the avoidance hole 133 enclose a mounting groove 111; the connecting surface 115, the supporting surface 112 and the hole wall of the avoidance hole 133 are respectively contacted with the sealant structure 113, so that the depth of the mounting groove 111 and the width of the mounting groove 111 in the radial direction of the avoidance hole 133 can be increased by using the middle part 114, thereby filling the required sealant amount, ensuring the stability of connection between the transition connecting piece 103 and the rear cavity shell 101 and being beneficial to ensuring the tightness. In one embodiment, intermediate portion 114 is disposed about the perimeter of inner core 102, one side of first overlap 109 is connected to one side of intermediate portion 114, and the other side of intermediate portion 114 is connected to one side of first support 110; in the depth direction of the avoidance hole 133, the middle part 114 extends for a certain distance, and the depth of the mounting groove 111 is adjusted by the distance of the middle part 114 in the depth direction of the avoidance hole 133 so as to realize filling of enough glue to form a sealant structure 113, and the sealant structure 113 is also annular due to the annular shape of the mounting groove 111 so as to realize sealing connection between the inner core 102 and the rear cavity shell 101; the other side of the first supporting portion 110 extends substantially to the edge of the first orifice 104, so that a gap formed between the other side of the first supporting portion 110 and the edge of the first orifice 104 can be reduced, and the amount of glue flowing out from the gap formed between the other side of the first supporting portion 110 and the edge of the first orifice 104 can be reduced when glue is injected into the mounting groove 111.

It should be noted that, in some other possible embodiments, the connection surface 115 of the middle portion 114 may also be disposed at an angle to the first direction (B-B direction), so that the amount of the filled sealant structure 113, i.e., the volume of the filled sealant structure 113, may be adjusted as desired.

Referring to fig. 5 and 7, in some embodiments, the intermediate portion 114 extends in a first direction (B-B direction) that is parallel to a direction from the first aperture 104 to the second aperture 105; the middle part 114 is attached to the peripheral surface of the inner core 102, so that the middle part 114 extends along the axial direction of the avoidance hole 133 (or along the depth direction of the avoidance hole 133), and the middle part 114 is attached to the peripheral surface of the inner core 102, so that the depth of the mounting groove 111 can be further increased, the required sealant can be filled, the stability of connection between the transition connecting piece 103 and the rear cavity shell 101 is ensured, and the tightness is ensured.

Referring to fig. 3-9, in some embodiments, the rear cavity housing 101 includes a third surface 116 and a fourth surface 117, the third surface 116 and the fourth surface 117 being opposite. Referring to fig. 3, the end surface of the second orifice 105 is a part of the fourth surface 117 of the rear cavity housing 101, the first orifice 104 is located on the third surface 116, the second orifice 105 is located on the fourth surface 117, and the escape hole 133 penetrates the third surface 116 and the fourth surface 117; at least a portion of the surface of the core 102 facing the second orifice 105 is flush with a portion of the end face of the second orifice 105. The fourth surface 117 of the rear housing 101 includes an end surface of the second aperture 105, and the end surface of the second aperture 105 may be a portion of the structure of the fourth surface 117 in the vicinity of the second aperture 105. In one embodiment, third surface 116 is an inner surface of rear housing shell 101 and fourth surface 117 is an outer surface of rear housing shell 101, with at least a portion of the structure of inner core 102 being flush with a set area or location of the outer surface after inner core 102 is inserted into relief hole 133.

When the fourth surface 117 is entirely planar, the end surface of the second orifice 105 may be the fourth surface 117. While at least a portion of the surface of the inner core 102 facing the second aperture 105 is flush with a portion of the surface of the fourth surface 117 when the fourth surface 117 is only partially planar. In addition, since the whole of the third surface 116 and the whole of the fourth surface 117 of the rear chamber housing 101 are not planar, the relief hole 133 may not be a regular hole, that is, the definition of the depth of the relief hole 133 requires that reference points be provided on the third surface 116 and the fourth surface 117, respectively, for measurement, but this does not affect that the depth direction of the relief hole 133 is parallel to the direction from the third surface 116 to the fourth surface 117.

Referring to fig. 6 and 7, and fig. 11, 12, and 15, in some embodiments, the transition piece 103 further includes an extension portion 118, where one side edge of the extension portion 118 is connected to the other side edge of the first supporting portion 110, and the extension portion 118 extends to the third surface 116, that is, a front projection of the extension portion 118 in a projection plane and a front projection of the third surface 116 in the projection plane have a portion overlapping, and the projection plane is perpendicular to the first direction (B-B direction), so that glue can flow between the extension portion 118 and the third surface 116, thereby increasing a contact area between the sealant structure 113 and the rear cavity housing 101, and increasing a contact area between the sealant structure 113 and the transition piece 103, which is beneficial for improving a tightness of a connection between the transition piece 103 and the rear cavity housing 101, and improving a tightness of a connection between the inner core 102 and the rear cavity housing 101. It should be understood that the projection plane may be any plane perpendicular to the depth direction of the relief hole 133, and is not the only plane, and is defined for convenience in describing that the orthographic projection of the extension 118 in the projection plane at least partially coincides with the orthographic projection of the third surface 116 in the projection plane.

Referring to fig. 6, in one embodiment, when the support surface 112 of the support surface 112 is disposed at an angle to the first direction (B-B direction), the surface of the extension 118 is disposed at an angle to the support surface 112, and the other side of the extension 118 extends below the third surface 116, so that the glue can fill the gap between the extension 118 and the third surface 116.

Referring to fig. 7, in another embodiment, when the transitional coupling member 103 further includes the middle portion 114, the surface of the extension portion 118 may be parallel to the supporting surface 112, and the other side edge of the extension portion 118 extends below the third surface 116, and when the extension portion 118 is integrally formed with the first supporting portion 110, it may be considered that the first supporting portion 110 extends below the third surface 116, so that the glue may fill the gap between the extension portion 118 and the third surface 116.

It should be noted that, in some other possible manners, when the transition piece 103 includes the extension portion 118, the extension portion 118 and the third surface 116 are fixed by an adhesive manner.

Referring to fig. 8, in other embodiments, the other side of the first supporting portion 110 is embedded in the rear cavity casing 101, so that the connection stability between the first supporting portion 110 and the rear cavity casing 101 is ensured by embedding the other side of the first supporting portion 110 in the rear cavity casing 101, and the sealing performance between the inner core 102 and the rear cavity casing 101 is ensured.

Referring back to fig. 3, in some embodiments, the first lap portion 109 has an adhesive surface 119, and the adhesive surface 119 is adhered to the inner core 102, so that the first lap portion 109 is connected to the inner core 102 by using an adhesive manner, which is convenient for assembly.

Referring to fig. 4, in some embodiments, the core 102 includes a magnetically permeable yoke 120 and a magnet 121, the magnetically permeable yoke 120 having a first surface 122 and a second surface 123, the first surface 122 and the second surface 123 being opposite; the first surface 122 is connected to the magnet 121; as shown in connection with fig. 19, the second surface 123 includes a joint surface 124 and a center surface 125, the joint surface 124 being disposed around an edge of the center surface 125 with a height difference between the joint surface 124 and the center surface 125; the first overlap 109 is connected to the overlap 124 and the center 125 is flush with the end face of the second port 105, which facilitates connection of the transition piece 103 to the core 102 and reduces the thickness of the speaker module. Specifically, the bonding surface 119 of the first lap portion 109 is bonded to the lap surface 124; setting a height difference between the lapping surface 124 and the center surface 125, wherein the center surface 125 is higher than the lapping surface 124, and the center surface 125 and the lapping surface 124 are both in a plane form; the height difference may be greater than or equal to the thickness of the first overlap 109, and the thickness direction of the first overlap 109 is parallel to the depth direction of the escape hole 133, and by setting the height difference to be adapted to the thickness of the first overlap 109, the upper surface of the first overlap 109 may be flush with the center plane 125 after the first overlap 109 is connected to the overlap 124, for example, when the height difference is equal to the thickness of the first overlap 109; the magnetic yoke 120 serves to enhance the magnetic field strength of the magnet 121 to facilitate increasing the vibration amplitude of a diaphragm (not shown) of the inner core 102. The material of the magnetic yoke 120 may be a yoke made of silicon steel sheets stacked. Fig. 3, 4, 5, 6, 7, and 19 show the center plane 125 and the overlap plane 124, but do not show the yoke 120 and the magnet 121.

As shown in fig. 10, 13, 14 and 18, the relief hole 133 is substantially quadrangular, and the fourth surface 117 includes a planar portion 126 in a planar form and a curved portion 127 in a curved form, a height difference is provided between the planar portion 126 and the curved portion 127, the curved portion 127 is higher than the planar portion 126, the planar portion 126 is close to the outlet 132 of the sound outlet passage 108, and the curved portion 127 is distant from the outlet 132 of the sound outlet passage 108. The planar portion 126 includes opposite first and second sub-planes 129, 130, the first and second sub-planes 129, 130 being located on opposite sides of the second aperture 105, the first and second sub-planes 129, 130 being flush with each other, the central plane 125 being flush with the planar portion 126, that is, the second predetermined surface including the central plane 125, the first predetermined surface including the planar portion 126 such that at least a portion of the surface of the core 102 facing the second aperture 105 is flush with the planar portion 126, at least a portion of the end surface of the second aperture 105 being flush with the central plane 125, at least a portion of the structure of the core 102 may include the central plane 125, and the set area of the outer surface may include the planar portion 126, so to speak the at least a portion of the surface of the core 102 facing the second aperture 105 being flush with at least a portion of the end surface of the second aperture 105. In addition, for the formed sealant structure 113, it may fill the mounting groove 111 to be flush with the center plane 125, or may not fill the mounting groove 111, and the specific amount may be determined according to actual needs. The first overlap 109 also has a facing surface 134 opposite the bonding surface 119; the facing away surface 134 may be flush with the central surface 125 or, as shown with reference to fig. 4, the facing away surface 134 may be lower than the central surface 125.

It should be noted that in some cases, the first preset surface may be the planar portion 126, and the second preset surface may be the central portion 125. In some other possible embodiments, at least part of the surface of the inner core 102 facing the second orifice 105 may also be flush with the highest position of the curved surface portion 127, in which case, the center plane 125 may also be flush with the highest position of the curved surface portion 127, or may be flush with other positions of the curved surface portion 127, which in this embodiment is advantageous for reducing the thickness of the speaker module by increasing the length of the portion of the inner core 102 inserted into the avoidance hole 133 through the transition piece 103.

Referring to fig. 9, in other embodiments, the inner core 102 includes the magnetic yoke 120, where the magnetic yoke 120 is integrally formed with the first lap portion 109, so that by integrally forming the magnetic yoke 120 with the first lap portion 109, the stability of the connection between the transition piece 103 and the inner core 102 can be improved, the step of bonding the first lap portion 109 with the magnetic yoke 120 is omitted, and the assembly of the speaker module is simplified. Illustratively, the upper surface of the first overlap 109 is flush with the central surface 125; the inner core 102 further includes a magnet 121, where the magnet 121 is connected to the magnet 121, and the magnetic yoke 120 is used to enhance the magnetic field strength of the magnet 121, so as to facilitate increasing the vibration amplitude of a diaphragm (not shown) of the inner core 102, and the magnetic yoke 120 may be made of silicon steel sheets stacked together.

In some embodiments, transition piece 103 is a sheet-like structure, which facilitates the manufacture of transition piece 103 and facilitates the connection of transition piece 103 to inner core 102 and rear housing 101, respectively.

In some embodiments, the material of the transition piece 103 is steel, so that the service life of the transition piece 103 can be prolonged, and the connection stability of the inner core 102 and the rear cavity shell 101 is ensured. It should be noted that in some other possible embodiments, the transition piece 103 may also be made of plastic, and the plastic may be polyethylene terephthalate, polyethylene, or acrylonitrile-butadiene-styrene copolymer, etc.

As shown in connection with fig. 16 and 17, in some embodiments, the transition piece 103 has perforations 131 to allow a portion of the structure of the yoke 120 to pass through, such that at least a portion of the end face of the second aperture 105 of the central face 125 of the yoke 120 is flush.

In some embodiments, the rear cavity housing 101 is made of plastic, and when the rear cavity housing 101 is made of plastic, the first supporting portion 110 of the transition piece 103 may be embedded in the rear cavity housing 101 by injection molding.

It should be noted that, in some other possible embodiments, when the rear cavity housing 101 is made of metal, the transition piece 103 and the rear cavity housing 101 may be integrally formed, and the metal may be steel or aluminum alloy.

Referring to fig. 20, in one or more embodiments, the present application provides an electronic device, which includes a housing 201 and a speaker module in any embodiment, where the housing 201 has a sound outlet 203, a sound outlet 108 of the speaker module is in communication with the sound outlet 203, the number of sound outlets 203 is plural, and an outlet 132 of the sound outlet 108 is in communication with the sound outlet 203; after the loudspeaker module adopts the transition connecting piece 103 to realize the sealing between the inner core 102 and the rear cavity shell 101, the limit of the height difference between the inner core and the rear cavity shell in the related art can be relieved, so that the thickness of the loudspeaker module can be further thinned, and the thinning of the electronic equipment is facilitated.

In some embodiments, the electronic device may be an electronic device such as a mobile phone, a tablet computer, a notebook computer or a desktop computer, and the specific form of the electronic device is not particularly limited in the embodiments of the present application; for convenience of explanation and understanding, the electronic device is exemplified by a mobile phone, the mobile phone is a bar mobile phone, the electronic device further includes a display screen 202, the display screen 202 is connected to the housing 201, and the housing 201 may be a middle frame; the speaker module is installed in an inner cavity formed between the display screen 202 and the housing 201, and a sound outlet 203 is formed on the side of the housing 201.

It should be noted that in some other embodiments, the mobile phone may also be a folding mobile phone or other mobile phone.

In the description of the present application, a particular feature, structure, material, or characteristic may be combined in any one or more embodiments or examples in a suitable manner.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (17)

1. A speaker module, comprising: the rear cavity shell is provided with an avoidance hole, and the inner core is in sealing connection with the avoidance hole through the transition connecting piece;

the avoidance hole has a first orifice and a second orifice opposite to each other;

the partial structure of the inner core is positioned in the avoidance hole;

At least a portion of the surface of the inner core facing the second orifice is flush with at least a portion of the end face of the second orifice.

2. The speaker module of claim 1, wherein the transition piece comprises a first overlap portion and a first support portion; the first lap joint part is connected with the inner core, one side edge of the first lap joint part is connected with one side edge of the first supporting part, and the other side edge of the first supporting part is connected with the rear cavity shell.

3. The speaker module of claim 2, wherein a mounting groove is provided between the transition piece and a wall of the relief hole; and the mounting groove is filled with a sealant structure, so that the other side edge of the first supporting part is connected with the rear cavity shell.

4. A loudspeaker module according to claim 3, wherein the first support portion has a support surface, the support surface is disposed at an angle to a first direction, the first direction is parallel to a direction from the first orifice to the second orifice, the support surface and a wall of the avoidance hole enclose the mounting groove, and the support surface and the wall of the avoidance hole are respectively in contact with the sealing glue structure.

5. The speaker module of claim 4, wherein the angle between the support surface and the first direction is an acute angle.

6. The speaker module of claim 3, wherein the transition piece further comprises an intermediate portion through which one side of the first overlap portion passes to connect with one side of the first support portion;

the middle part is provided with a connecting surface, the first supporting part is provided with a supporting surface, and the connecting surface, the supporting surface and the wall of the avoidance hole enclose the mounting groove;

the connecting surface, the supporting surface and the hole wall of the avoidance hole are respectively contacted with the sealing glue structure.

7. The speaker module of claim 6, wherein the intermediate portion extends in a first direction that is parallel to a direction from the first aperture to the second aperture; the intermediate portion is bonded to the peripheral surface of the core.

8. The speaker module of claim 4 or 5, wherein the transition piece further comprises an extension, one side of the extension being connected to the other side of the first support;

the rear cavity shell comprises a third surface and a fourth surface, the third surface is opposite to the fourth surface, the first orifice is positioned on the third surface, and the second orifice is positioned on the fourth surface;

The orthographic projection of the extension part in the projection plane is coincident with the orthographic projection of the third surface in the projection plane, and the projection plane is perpendicular to the first direction.

9. The speaker module as recited in claim 2, wherein the other side of the first support portion is embedded in the rear chamber housing.

10. The speaker module as recited in any one of claims 2-6, wherein the first overlap has an adhesive surface that adheres to the inner core.

11. The speaker module as recited in any one of claims 2-6, wherein the inner core comprises a magnetically permeable yoke that is of unitary construction with the first overlap.

12. The speaker module as recited in any one of claims 2-6, wherein the inner core comprises a magnetically permeable yoke and a magnet, the magnetically permeable yoke having a first surface and a second surface, the first surface and the second surface being opposite;

the first surface is connected with the magnet;

the second surface comprises a lap surface and a center surface, the lap surface is arranged around the edge of the center surface, and a height difference exists between the lap surface and the center surface;

The first overlap is connected to the overlap surface and the central surface is flush with at least a portion of the end surface of the second aperture.

13. The speaker module of claim 12, wherein the rear chamber housing includes a third surface and a fourth surface, the third surface and the fourth surface being opposite, the first aperture being located at the third surface, the second aperture being located at the fourth surface;

the fourth surface comprises a plane part and a curved surface part, wherein the plane part and the curved surface part are provided with a height difference, and the center surface is flush with the plane part.

14. The speaker module of claim 13, wherein the planar portion includes opposing first and second sub-planes, the first and second sub-planes being on opposite sides of the second aperture, respectively, the first and second sub-planes being flush with the center plane, respectively.

15. A loudspeaker module of any one of claims 1-6, wherein the transition piece is a sheet-like structure.

16. The speaker module as recited in any one of claims 1-6, wherein the transition piece is steel.

17. An electronic device, comprising: a housing and a speaker module according to any one of claims 1-16, the housing having an outlet, the outlet of the speaker module being in communication with the outlet.