Electroacoustic housing assembly, electroacoustic device and electronic equipment

Abstract

The invention provides an electroacoustic shell assembly, an electroacoustic device and electronic equipment. The electroacoustic housing assembly includes a first housing and a second housing. The first shell comprises a first sub-side wall and a second sub-side wall which are connected in a bent mode, the first sub-side wall comprises a first body part and a positioning part arranged on the inner surface of the first body part, and the second sub-side wall comprises a second body part and a widening part arranged on the side, away from the first body part, of the second body part. The projection of the widened part on the inner surface of the first body part covers at least part of the positioning part; the second shell is buckled on at least part of the first shell, the second shell comprises a third body part and a first connecting part arranged at one end of the third body part, the third body part is arranged on the second body part, a first anti-overflow groove is formed between the third body part and the first body part, and the first connecting part and the second sub side wall are welded together. According to the electroacoustic shell assembly, the electroacoustic device and the electronic equipment provided by the invention, the welding reliability can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic technology, specifically to an electroacoustic housing assembly, an electroacoustic device, and an electronic device. Background Technology

[0002] Electroacoustic devices (e.g., loudspeakers) typically consist of a housing and electroacoustic conversion components housed within it. The housing generally comprises an upper housing and a lower housing that are snapped together. Welding techniques are used to connect the upper and lower housings, providing stable connection and sealing performance, thus ensuring the quality of the electroacoustic device. However, in related technologies, due to the influence of the housing's structure, materials, and welding process parameters, technical problems such as poor welding exist between the upper and lower housings. Summary of the Invention

[0003] This application provides an electroacoustic housing assembly, electroacoustic device, and electronic device that can improve welding reliability.

[0004] On one hand, this application provides an electroacoustic housing assembly, comprising:

[0005] A first housing, the first housing including a first sidewall, the first sidewall including a first sub-sidewall and a second sub-sidewall bent and connected, the first sub-sidewall including a first body portion and a positioning portion disposed on the inner surface of the first body portion, the second sub-sidewall including a second body portion and a widened portion disposed on the side of the second body portion away from the first body portion, the projection of the widened portion on the inner surface of the first body portion covering at least a portion of the positioning portion; and

[0006] A second housing is fastened to at least a portion of the first housing, and a receiving cavity for accommodating an electroacoustic conversion assembly is formed between the second housing and the first housing. The second housing includes a second sidewall, which includes a third body portion and a first connecting portion disposed at one end of the third body portion. The third body portion is disposed on the second body portion and forms a first anti-overflow groove between it and the first body portion. The first connecting portion is welded to the second sub-sidewall.

[0007] On the other hand, this application also provides an electroacoustic device, including an electroacoustic conversion component and the aforementioned electroacoustic housing assembly, wherein the electroacoustic conversion component is disposed within the electroacoustic housing assembly.

[0008] In another aspect, this application also provides an electronic device, including a device housing and the aforementioned electroacoustic device, wherein the electroacoustic device is disposed within the device housing.

[0009] The electroacoustic housing assembly provided in this application includes a first housing and a second housing. A first anti-overflow groove is formed between the first sidewall of the first housing and the second sidewall of the second housing. The first anti-overflow groove can prevent the solder from flowing out during the welding process of the first housing and the second housing, thereby reducing the possibility of incomplete welding joints and improving the welding quality and welding strength between the first housing and the second housing. By providing a positioning part on the first sub-sidewall of the first housing, the design of the positioning part is conducive to improving the positional accuracy of the first housing and the second housing. This helps to ensure the positioning accuracy of the welding line and the welding head during the welding process of the first housing and the second housing, thereby reducing the dispersion of welding energy and improving the welding quality between the first housing and the second housing. In addition, since the positioning part occupies a certain space of the first anti-overflow groove, it is easy to cause the solder at that position to decrease. Therefore, by providing a widening part on the second sub-sidewall of the first housing at the position corresponding to the positioning part, the design of the widening part can increase the welding bonding area between the second housing and the first housing at the position corresponding to the positioning part, thereby further improving the welding quality and welding strength between the first housing and the second housing, and thus improving the welding reliability between the first housing and the second housing of the electroacoustic housing assembly. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0011] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0012] Figure 2 A schematic diagram of the structure of an electroacoustic device provided in an embodiment of this application;

[0013] Figure 3 This is a schematic diagram of the structure of an electroacoustic housing assembly provided in an embodiment of this application;

[0014] Figure 4 for Figure 3 A schematic diagram of the structure of the first housing in the electroacoustic housing assembly shown;

[0015] Figure 5 for Figure 3 A schematic diagram of the structure of the second housing in the electroacoustic housing assembly shown;

[0016] Figure 6 for Figure 3 The diagram shows a cross-sectional view of the electroacoustic housing assembly along line AA.

[0017] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the electroacoustic housing assembly, with the width dimension indicated.

[0018] Figure 8 for Figure 3 A schematic diagram of the structure of the first housing in the electroacoustic housing assembly from another perspective;

[0019] Figure 9 for Figure 3 A schematic cross-sectional view of the electroacoustic housing assembly along line BB;

[0020] Figure 10 for Figure 4 A partially enlarged schematic diagram of region A in the first housing shown;

[0021] Figure 11 for Figure 8 A partially enlarged schematic diagram of region B in the first housing shown;

[0022] Figure 12 for Figure 9 The diagram shows a cross-sectional view of the electroacoustic housing assembly, with the width dimension indicated.

[0023] Figure 13 for Figure 5 The diagram shows a cross-sectional view of the second shell along the CC line.

[0024] Explanation of reference numerals in the attached figures:

[0025] Electronic device 1000; device housing 2; electroacoustic device 1; electroacoustic housing assembly 100; electroacoustic conversion assembly 200; first housing 10; first side wall 101; first sub-side wall 110; first body portion 1101; positioning portion 1102; second sub-side wall 112; second body portion 1120; widened portion 1121; second bottom wall 11; second inner side wall 12; outer side wall 13; second cavity 14; second housing 20; second side wall 201; third body portion 210; first connecting portion 211; first anti-overflow groove 30; third Bottom wall 21; third inner side wall 22; third cavity 23; third side wall 102; sound hole channel 120; first sub-sound hole channel 1201; second sub-sound hole channel 1202; third sub-side wall 121; fourth sub-side wall 122; first sub-welding surface 1220; second sub-welding surface 1221; reinforcing rib 123; first reinforcing part 1230; second reinforcing part 1231; fourth side wall 202; fourth body part 220; second connecting part 221; first rounded corner 2110; second rounded corner 2210; second anti-overflow groove 40. Detailed Implementation

[0026] The technical solutions provided in this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort are within the protection scope of this application.

[0027] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, an assembly or device that includes one or more components is not limited to the one or more components listed, but may optionally also include one or more components not listed but inherent to the exemplified product, or one or more components that it should have based on the described function.

[0029] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the electroacoustic device 1 provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of an electroacoustic housing assembly 100 provided in an embodiment of this application. The electronic device 1000 can be a mobile phone, tablet computer, laptop computer, wearable device (such as a watch, bracelet, etc.), portable audio device (such as a portable music player, speaker, recording device, etc.), portable video device (such as a camera, projector, etc.), television, etc. In the following embodiments, the electronic device 1000 is taken as a mobile phone. The electronic device 1000 includes a device housing 2 and an electroacoustic device 1. The electroacoustic device 1 is disposed within the device housing 2. The electroacoustic device 1 includes an electroacoustic housing assembly 100 and an electroacoustic conversion assembly 200. The electroacoustic conversion assembly 200 is disposed within the electroacoustic housing assembly 100.

[0030] In one possible embodiment, the device housing 2 may include a display screen, a mid-frame, and a back cover. The display screen and the back cover are disposed opposite each other along the thickness direction of the electronic device 1000, and the mid-frame connects the display screen and the back cover. A receiving space is formed between the display screen, the mid-frame, and the back cover. In this embodiment, the electroacoustic device 1 can be received within the receiving space formed by the display screen, the mid-frame, and the back cover.

[0031] This application does not specify the location of the electroacoustic device 1 within the equipment housing 2. Figure 1 The position of the electroacoustic device 1 within the device housing 2 shown is merely an illustration of an embodiment and is not intended to limit the specific location of the electroacoustic device 1. Exemplarily, the electroacoustic device 1 may be positioned near the bottom of the device housing 2, or near the top of the device housing 2, or near the left side of the device housing 2, or near the right side of the device housing 2. In this embodiment, the bottom and top of the device housing 2 may be positioned opposite each other along the length of the electronic device 1000, and the left and right sides of the device housing 2 may be positioned opposite each other along the width of the electronic device 1000.

[0032] This application does not specifically limit the number of electroacoustic devices 1 included in the electronic device 1000. The electronic device 1000 may include one or more electroacoustic devices 1 disposed within the device housing 2. For example, the electronic device 1000 may include one electroacoustic device 1, or the electronic device 1000 may include two electroacoustic devices 1, or the electronic device 1000 may include three electroacoustic devices 1, or the electronic device 1000 may include four electroacoustic devices 1.

[0033] The electroacoustic conversion component 200 can be a component that converts electrical energy into sound, or it can be a component that converts sound into electrical energy. Alternatively, the electroacoustic conversion component 200 can include a first conversion component that converts electrical energy into sound and a second conversion component that converts sound into electrical energy. When the electroacoustic conversion component 200 is a component that converts electrical energy into sound, the electroacoustic device 1 can be a loudspeaker or a receiver. When the electroacoustic conversion component 200 is a component that converts sound into electrical energy, the electroacoustic device 1 can be a microphone. In the following embodiments, the electroacoustic device 1 is exemplified by a loudspeaker. In this case, the electroacoustic conversion component 200 includes a loudspeaker core.

[0034] This application does not specifically limit the number of electroacoustic conversion components 200 included in the electroacoustic device 1. The electroacoustic device 1 may include one or more electroacoustic conversion components 200 disposed within the electroacoustic housing assembly 100. For example, the electroacoustic device 1 may include one electroacoustic conversion component 200, or the electroacoustic device 1 may include two electroacoustic conversion components 200, or the electroacoustic device 1 may include three electroacoustic conversion components 200, or the electroacoustic device 1 may include four electroacoustic conversion components 200.

[0035] The electroacoustic housing assembly 100 includes a first housing 10 and a second housing 20. The electroacoustic conversion assembly 200 is disposed within the electroacoustic housing assembly 100, or the electroacoustic conversion assembly 200 may be disposed between the first housing 10 and the second housing 20.

[0036] The following embodiments are established for the purpose of describing the technical solutions of this application as follows. Figure 2 The coordinate system shown is as follows. The X-axis can be understood as the length direction of the electroacoustic housing assembly 100, the Y-axis as the width direction, and the Z-axis as the thickness direction. The dimension of the electroacoustic housing assembly 100 along its width direction is smaller than its dimension along its length direction.

[0037] Please refer to Figures 4 to 6 , Figure 4 for Figure 3 The diagram shows the structure of the first housing 10 in the electroacoustic housing assembly 100. Figure 5 for Figure 3 The diagram shows the structure of the second housing 20 in the electroacoustic housing assembly. Figure 6 for Figure 3 The diagram shows a cross-sectional view of the electroacoustic housing assembly 100 along line AA. The first housing 10 includes a first sidewall 101. The first sidewall 101 includes a first sub-sidewall 110 and a second sub-sidewall 112 that are bent and connected together. The first sub-sidewall 110 includes a first body portion 1101 and a positioning portion 1102 disposed on the inner surface of the first body portion 1101. The second sub-sidewall 112 includes a second body portion 1120 and a widened portion 1121 disposed on the side of the second body portion 1120 away from the first body portion 1101. The projection of the widened portion 1121 onto the inner surface of the first body portion 1101 covers at least a portion of the positioning portion 1102.

[0038] The first housing 10 can be a plastic housing. In other words, the material of the first housing 10 includes, but is not limited to, plastic, modified plastic, or composite plastic. The first housing 10 can be a regularly shaped housing or an irregularly shaped housing. The following embodiments use an irregularly shaped first housing 10 as an example.

[0039] In one possible embodiment, the first housing 10 may include a first bottom wall and a first inner sidewall connected to the first bottom wall. The first bottom wall and the first inner sidewall may be integrally connected. At least a portion of the first inner sidewall and the first bottom wall may form a generally quadrilateral first cavity. Of course, in other possible embodiments, at least a portion of the first inner sidewall and the first bottom wall may also form a first cavity of other shapes, such as circular, triangular, or irregular shapes. The first cavity is used to accommodate at least a portion of the electroacoustic conversion assembly 200. In this embodiment, the first inner sidewall includes four bent and connected first sub-inner sidewalls. The four first sub-inner sidewalls may be integrally connected. One of the four first sub-inner sidewalls included in the first inner sidewall may include the first sidewall 101.

[0040] In another possible embodiment, such as Figure 4 As shown, the first housing 10 may include a second bottom wall 11, a second inner side wall 12 connected to the second bottom wall 11, and an outer side wall 13 connected to the second bottom wall 11. The second bottom wall 11, the second inner side wall 12, and the outer side wall 13 may be integrally connected. At least a portion of the second inner side wall 12 and the second bottom wall 11 may form a generally quadrilateral second cavity 14, which is exemplified by a near-rectangular second cavity 14 in this embodiment. Of course, in other possible embodiments, at least a portion of the second inner side wall 12 and the second bottom wall 11 may also form a second cavity 14 of other shapes, such as circular, triangular, or irregular shapes. The second cavity 14 is used to accommodate at least a portion of the electroacoustic conversion assembly 200. In this embodiment, the second inner side wall 12 includes four bent and connected second sub-inner side walls. The four second sub-inner side walls may be integrally connected. The outer side wall 13 may be disposed on the side of at least one of the four second sub-inner side walls opposite to the second cavity 14. The outer sidewall 13 may include the first sidewall 101. In this embodiment, both the second inner sidewall 12 and the outer sidewall 13 can be connected to the second housing 20. This helps to increase the connection and contact area between the first housing 10 and the second housing 20, and improves the connection effect between the first housing 10 and the second housing 20. In addition, the outer sidewall 13 provides a certain degree of protection to the second inner sidewall 12, which helps to improve the protection and sealing effect of the electroacoustic housing assembly 100 on the electroacoustic conversion assembly 200.

[0041] In the following embodiments, unless otherwise specified, the first housing 10 includes a second bottom wall 11, a second inner side wall 12, and an outer side wall 13, with the outer side wall 13 including a first side wall 101. The first housing 10 can be integrally injection molded.

[0042] The first sub-sidewall 110 and the second sub-sidewall 112 can be integrally connected. Figure 4The illustration can be understood as follows: the first sub-sidewall 110 is the vertical segment of the first sidewall 101, and the second sub-sidewall 112 is the horizontal segment of the first sidewall 101. This application does not specifically limit the bending angle between the first sub-sidewall 110 and the second sub-sidewall 112. In one possible embodiment, the bending angle between the first sub-sidewall 110 and the second sub-sidewall 112 can be 90° or close to 90°. For example, the bending angle between the first sub-sidewall 110 and the second sub-sidewall 112 can be 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94°, or 95°. It is understood that the first sub-sidewall 110 and the second sub-sidewall 112 form an approximately L-shaped first sidewall 101.

[0043] The first body portion 1101 may be elongated. The inner surface of the first body portion 1101 faces the second cavity 14. The positioning portion 1102 includes, but is not limited to, a protrusion or a protruding post provided on the inner surface of the first body portion 1101. The first body portion 1101 and the positioning portion 1102 may be integrally formed, for example, by injection molding.

[0044] This application does not specifically limit the number of positioning portions 1102 provided on the inner surface of the first body portion 1101. The inner surface of the first body portion 1101 may be provided with one or more positioning portions 1102. For example, the inner surface of the first body portion 1101 may be provided with one positioning portion 1102, or two positioning portions 1102, or three positioning portions 1102, or four positioning portions 1102.

[0045] The second body portion 1120 may be elongated. The side of the second body portion 1120 furthest from the first body portion 1101 is close to the second cavity 14. The projection of the widened portion 1121 onto the inner surface of the first body portion 1101, covering at least a portion of the positioning portion 1102, can be understood as the widened portion 1121 and the positioning portion 1102 being disposed opposite each other along the width direction of the first sidewall 101. It is understood that the dimensions of the second body portion 1120 are not uniform along the length direction of the first sidewall 101. Specifically, the second body portion 1120 is relatively wider at the position corresponding to the positioning portion 1102 and relatively narrower in other areas.

[0046] In this embodiment, the length direction of the first sidewall 101 can be referred to the attached document. Figure 4 As shown in the X-axis direction, the width direction of the first sidewall 101 can be referenced in the appendix. Figure 4As shown in the Y-axis direction. It can be understood that in this embodiment, the length direction of the first sidewall 101 is the same as the length direction of the electroacoustic housing assembly 100, and the width direction of the first sidewall 101 is the same as the width direction of the electroacoustic housing assembly 100. Of course, in other possible embodiments, the length direction of the first sidewall 101 may also be along the width direction of the electroacoustic housing assembly 100, and the width direction of the first sidewall 101 may also be along the length direction of the electroacoustic housing assembly 100. Wherein, the dimension of the first sidewall 101 along its width direction is smaller than the dimension of the first sidewall 101 along its length direction.

[0047] This application does not specifically limit the number of widening portions 1121 included in the second sub-sidewall 112. The second sub-sidewall 112 may include one or more widening portions 1121. For example, the second sub-sidewall 112 may include one widening portion 1121, or the second sub-sidewall 112 may include two widening portions 1121, or the second sub-sidewall 112 may include three widening portions 1121, or the second sub-sidewall 112 may include four widening portions 1121.

[0048] In one possible embodiment, the number of widened portions 1121 can be the same as the number of positioning portions 1102, with each widened portion 1121 corresponding to a positioning portion 1102. It is understood that the projection of a widened portion 1121 onto the inner surface of the first body portion 1101 covers at least a portion of its corresponding positioning portion 1102. Optionally, the area of ​​the widened portion 1121 is larger than the area of ​​the positioning portion 1102; in this case, the projection of the widened portion 1121 onto the inner surface of the first body portion 1101 can cover all of the positioning portions 1102. Of course, in other possible embodiments, the projection of the widened portion 1121 onto the inner surface of the first body portion 1101 can cover a portion of the positioning portions 1102.

[0049] The second housing 20 is fastened to at least a portion of the first housing 10. A receiving cavity for accommodating the electroacoustic conversion assembly 200 is formed between the second housing 20 and the first housing 10. The second housing 20 includes a second sidewall 201. The second sidewall 201 includes a third body portion 210 and a first connecting portion 211 disposed at one end of the third body portion 210. The third body portion 210 is disposed on the second body portion 1120 and forms a first anti-overflow groove 30 between it and the first body portion 1101. The first connecting portion 211 is welded to the second sub-sidewall 112.

[0050] The second housing 20 can be a plastic housing. In other words, the material of the second housing 20 includes, but is not limited to, plastic, modified plastic, or composite plastic. The second housing 20 can be a regularly shaped housing or an irregularly shaped housing. The following embodiments use an irregularly shaped second housing 20 as an example.

[0051] In one possible embodiment, the second housing 20 may include a third bottom wall 21 and a third inner sidewall 22 connecting the third bottom wall 21. The third bottom wall 21 and the third inner sidewall 22 may be integrally connected. At least a portion of the third inner sidewall 22 and the third bottom wall 21 may form a generally quadrilateral third cavity 23. Of course, in other possible embodiments, at least a portion of the third inner sidewall 22 and the third bottom wall 21 may also form a third cavity 23 of other shapes, such as circular, triangular, or irregular shapes. The third cavity 23 is used to accommodate at least a portion of the electroacoustic conversion assembly 200. In this embodiment, the third inner sidewall 22 includes four bent and connected third sub-inner sidewalls. The four third sub-inner sidewalls may be integrally connected. One of the four third sub-inner sidewalls may include the second sidewall 201. The second housing 20 may be integrally injection molded.

[0052] In this embodiment, the second housing 20 is fastened to a portion of the first housing 10, the third cavity 23 communicates with the second cavity 14, and the electroacoustic conversion assembly 200 is disposed within the second cavity 14 and the third cavity 23. Of course, in other possible embodiments, the second housing 20 may be fastened to the entire first housing 10. In this embodiment, the direction of the second housing 20 pointing towards the first housing 10 forms the thickness direction of the electroacoustic housing assembly 100. In other words, the second housing 20 and the first housing 10 are stacked approximately along the thickness direction of the electroacoustic housing assembly 100.

[0053] The third body portion 210 may be elongated. A first connecting portion 211 is located at one end of the third body portion 210 facing the second sub-sidewall 112. It is understood that the third body portion 210 and the first connecting portion 211 are arranged along the thickness direction of the electroacoustic housing assembly 100. The third body portion 210 and the first connecting portion 211 may be integrally formed, for example, by injection molding. The third body portion 210 and the first body portion 1101 are spaced apart along the width direction of the electroacoustic housing assembly 100, and the gap between the third body portion 210 and the first body portion 1101 forms the first anti-overflow groove 30. The dimension of the first connecting portion 211 along the width direction of the electroacoustic housing assembly 100 may be smaller than the dimension of the third body portion 210 along the width direction of the electroacoustic housing assembly 100.

[0054] After the first connecting part 211 is welded to the second sub-side wall 112, the first connecting part 211 and the second sub-side wall 112 are combined with each other, including but not limited to the joint surface of the first connecting part 211 being fused together with the joint surface of the first sub-side wall 110; or, the first connecting part 211 is embedded in the second sub-side wall 112; or, the first connecting part 211 is covered on the second sub-side wall 112.

[0055] Before the first connecting part 211 is welded to the second sub-side wall 112, the first housing 10 and the second housing 20 are positioned, including but not limited to making the positioning part 1102 of the first housing 10 contact the third body part 210 of the second housing 20, or making the positioning part 1102 of the first housing 10 and the third body part 210 of the second housing 20 interference fit, or making the positioning part 1102 of the first housing 10 and the third body part 210 of the second housing 20 clearance fit.

[0056] The electroacoustic housing assembly 100 provided in this application includes a first housing 10 and a second housing 20. A first anti-overflow groove 30 is formed between the first sidewall 101 of the first housing 10 and the second sidewall 201 of the second housing 20. The first anti-overflow groove 30 can prevent the solder from flowing out during the welding process of the first housing 10 and the second housing 20, thereby reducing the situation of incomplete welding joints and improving the welding quality and welding strength between the first housing 10 and the second housing 20. By providing a positioning part 1102 on the first sub-sidewall 110 of the first housing 10, the design of the positioning part 1102 helps to improve the positional accuracy of the first housing 10 and the second housing 20, thereby helping to ensure the alignment of the welding line with the welding surface during the welding process of the first housing 10 and the second housing 20. Improving the positioning accuracy of the head reduces the dispersion of welding energy, thereby enhancing the welding quality between the first housing 10 and the second housing 20. Furthermore, since the positioning part 1102 occupies a certain space in the first anti-overflow groove 30, it can easily lead to a reduction in solder at that location. Therefore, by providing a widened portion 1121 at the position corresponding to the positioning part 1102 on the second sub-side wall 112 of the first housing 10, the widened portion 1121 increases the welding area between the second housing 20 and the first housing 10 at the position corresponding to the positioning part 1102. This further improves the welding quality and strength between the first housing 10 and the second housing 20, thereby enhancing the welding reliability between the first housing 10 and the second housing 20 of the electroacoustic housing assembly 100.

[0057] In one possible embodiment, the width of the positioning portion 1102 is greater than or equal to 0.05 mm. Optionally, the width of the positioning portion 1102 is greater than or equal to 0.05 mm and less than or equal to 0.1 mm. Exemplarily, the width of the positioning portion 1102 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm. Of course, in other possible embodiments, the width of the positioning portion 1102 can be greater than 0.1 mm. Please refer to the embodiments of this application. Figure 6 and Figure 7 The width of the positioning part 1102 refers to the dimension of the positioning part 1102 along the width direction of the electroacoustic housing assembly 100. The specific width of the positioning part 1102 can be found in the attached drawing. Figure 7 As shown in W1.

[0058] By making the width of the positioning part 1102 greater than or equal to 0.05mm, the molding difficulty of the positioning part 1102 can be reduced, and the positioning effect of the first housing 10 and the second housing 20 can be guaranteed.

[0059] In one possible embodiment, the distance between the third body portion 210 and the first body portion 1101 is greater than or equal to 0.05 mm and less than or equal to 0.15 mm. Optionally, the distance between the third body portion 210 and the first body portion 1101 is greater than or equal to 0.05 mm and less than or equal to 0.1 mm. Exemplarily, the distance between the third body portion 210 and the first body portion 1101 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm. Of course, in other possible embodiments, the distance between the third body portion 210 and the first body portion 1101 can be greater than 0.1 mm and less than or equal to 0.15 mm. In the embodiments of this application, please refer to... Figure 6 and Figure 7 The specific distance between the third body part 210 and the first body part 1101 can be referred to in the appendix. Figure 7 As shown in W2.

[0060] By ensuring that the distance between the third body part 210 and the positioning part 1102 is greater than or equal to 0.05 mm, the width of the first anti-overflow groove 30 at the positioning position of the first housing 10 and the second housing 20 can be guaranteed, thus avoiding the first anti-overflow groove 30 being too narrow and having a poor anti-overflow effect. It can also ensure the positioning effect of the first housing 10 and the second housing 20, thus avoiding the distance between the positioning part 1102 and the third body part 210 being too wide and having a poor positioning effect.

[0061] In one possible embodiment, the width of the widened portion 1121 is greater than or equal to 0.05 mm. Optionally, the width of the widened portion 1121 is greater than or equal to 0.05 mm and less than or equal to 0.1 mm. Exemplarily, the width of the widened portion 1121 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm. Of course, in other possible embodiments, the width of the widened portion 1121 can be greater than 0.1 mm. In the embodiments of this application, please refer to... Figure 6 and Figure 7 The width of the widened portion 1121 refers to the dimension in the width direction of the electroacoustic housing assembly 100. The specific width of the widened portion 1121 can be found in the attached drawing. Figure 7 As shown in W3.

[0062] By making the width of the widened portion 1121 greater than or equal to 0.05 mm, it can be ensured that the width of the second sub-sidewall 112 at the positioning position of the first housing 10 and the second housing 20 is not too small, thereby increasing the bonding area between the first connecting portion 211 and the second sub-sidewall 112 and ensuring the welding quality of the first connecting portion 211 and the second sub-sidewall 112.

[0063] Optionally, the width of the positioning portion 1102 is the same as the width of the widening portion 1121. By making the width of the positioning portion 1102 the same as the width of the widening portion 1121, it is advantageous to make the welding width of the second sidewall 201 and the second sub-sidewall 112 the same along the length direction of the electroacoustic housing assembly 100, thereby ensuring welding uniformity and avoiding stress concentration.

[0064] Further, please refer to Figure 8 and Figure 9 , Figure 8 for Figure 3 This is a schematic diagram of the structure of the first housing 10 in the electroacoustic housing assembly 100 from another perspective. Figure 9 for Figure 3 The diagram shows a cross-sectional view of the electroacoustic housing assembly 100 along line BB. The first housing 10 also includes a third sidewall 102 connected to the first sidewall 101. The third sidewall 102 is provided with a sound hole channel 120. The third sidewall 102 includes a third sub-sidewall 121 and a fourth sub-sidewall 122 that are bent and connected, and a reinforcing rib 123 that is at least partially disposed within the sound hole channel 120.

[0065] The third sidewall 102 can be directly connected to the first sidewall 101, or it can be indirectly connected. In this embodiment, the indirect connection between the third sidewall 102 and the first sidewall 101 is taken as an example. In one possible embodiment, one of the four second sub-inner sidewalls included in the second inner sidewall 12 may include the third sidewall 102. The third sidewall 102 and the first sidewall 101 can be integrally connected. In this embodiment, the third sidewall 102 and the first sidewall 101 can be arranged opposite each other along the width direction of the electroacoustic housing assembly 100, that is, the width direction of the third sidewall 102 is consistent with the width direction of the first sidewall 101. In this case, the width direction of the third sidewall 102 can be referenced... Figure 8 The Y-axis direction. Of course, in other possible embodiments, the third sidewall 102 and the first sidewall 101 can be arranged adjacent to each other, that is, the width direction of the third sidewall 102 can be perpendicular to the width direction of the first sidewall 101. In this case, the width direction of the third sidewall 102 can be referenced... Figure 8 In the X-axis direction.

[0066] The acoustic channel 120 extends through the third sidewall 102 along its width. This application does not specifically limit the shape of the acoustic channel 120. For example, the longitudinal cross-sectional shape of the acoustic channel 120 can be rectangular or elliptical, etc.

[0067] The third sub-sidewall 121 and the fourth sub-sidewall 122 can be integrally connected. This application does not specifically limit the bending angle between the third sub-sidewall 121 and the fourth sub-sidewall 122. In one possible embodiment, the bending angle between the third sub-sidewall 121 and the fourth sub-sidewall 122 can be 90° or close to 90°. Exemplarily, the bending angle between the third sub-sidewall 121 and the fourth sub-sidewall 122 can be 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94°, or 95°. It is understood that the third sub-sidewall 121 and the fourth sub-sidewall 122 form an approximately L-shaped third sidewall 102.

[0068] The reinforcing rib 123 can be a unidirectional rib, a cross rib, a wavy rib, or an L-shaped rib, etc. The reinforcing rib 123 can be located in the middle of the acoustic channel 120. When the reinforcing rib 123 is a unidirectional rib, the reinforcing rib 123 can extend along the width direction of the third sidewall 102, that is, the length direction of the reinforcing rib 123 can be along the width direction of the third sidewall 102.

[0069] Please refer to Figure 5 and Figure 9 The second housing 20 also includes a fourth sidewall 202 connected to the second sidewall 201. The fourth sidewall 202 includes a fourth body portion 220 and a second connecting portion 221 disposed at one end of the fourth body portion 220. The fourth body portion 220 is disposed on the fourth sub-sidewall 122 and forms a second anti-overflow groove 40 between it and the third sub-sidewall 121. The second connecting portion 221 is welded to the fourth sub-sidewall 122.

[0070] The fourth sidewall 202 and the second sidewall 201 can be directly connected or indirectly connected. This embodiment uses an example of the fourth sidewall 202 and the second sidewall 201 being indirectly connected. In one possible embodiment, one of the four third sub-inner sidewalls included in the third inner sidewall 22 may include the fourth sidewall 202. The fourth sidewall 202 and the second sidewall 201 can be integrally connected. In this embodiment, the fourth sidewall 202 and the second sidewall 201 can be arranged opposite each other along the width direction of the electroacoustic housing assembly 100. Of course, in other possible embodiments, the fourth sidewall 202 and the second sidewall 201 can also be arranged adjacent to each other.

[0071] The fourth body portion 220 may be elongated. A second connecting portion 221 is located at one end of the fourth body portion 220 facing the fourth sub-sidewall 122. It is understood that the fourth body portion 220 and the second connecting portion 221 are arranged along the thickness direction of the electroacoustic housing assembly 100. The second connecting portion 221 and the fourth body portion 220 may be integrally molded, for example, by injection molding. The fourth body portion 220 and the third sub-sidewall 121 are spaced apart along the width direction of the electroacoustic housing assembly 100, and the gap between the fourth body portion 220 and the third sub-sidewall 121 forms the second anti-overflow groove 40. The dimension of the second connecting portion 221 along the width direction of the electroacoustic housing assembly 100 may be smaller than the dimension of the fourth body portion 220 along the width direction of the electroacoustic housing assembly 100.

[0072] After the second connecting part 221 is welded to the fourth sub-side wall 122, the second connecting part 221 and the fourth sub-side wall 122 are combined with each other, including but not limited to the joint surface of the second connecting part 221 and the joint surface of the fourth sub-side wall 122 being fused together; or, the second connecting part 221 is embedded in the fourth sub-side wall 122; or, the second connecting part 221 is covered on the fourth sub-side wall 122.

[0073] Because the thickness of the third sidewall 102 is reduced at the location where the acoustic channel 120 is provided, its strength is weakened. Therefore, a reinforcing rib 123 is provided inside the acoustic channel 120. During the welding process between the second connecting part 221 and the fourth sub-sidewall 122, the reinforcing rib 123 can provide certain support, thereby preventing the fourth sub-sidewall 122 from collapsing during the welding process and causing poor welding between the second connecting part 221 and the fourth sub-sidewall 122. By welding the first sidewall 101 of the first housing 10 to the second sidewall 201 of the second housing 20 together, and welding the third sidewall 102 of the first housing 10 to the fourth sidewall 202 of the second housing 20 together, the reliability and tightness of the connection between the first housing 10 and the second housing 20 can be improved, thereby ensuring the quality of the electroacoustic housing assembly 100.

[0074] In one possible embodiment, such as Figure 9 As shown, the reinforcing rib 123 includes a first reinforcing portion 1230 and a second reinforcing portion 1231. The first reinforcing portion 1230 is located within the acoustic channel 120 and extends along the width direction of the acoustic channel 120. The second reinforcing portion 1231 is connected to the end of the first reinforcing portion 1230 near the receiving cavity and is located outside the acoustic channel 120.

[0075] The width direction of the acoustic channel 120 is consistent with the width direction of the third sidewall 102. The dimension of the first reinforcing portion 1230 along the width direction of the acoustic channel 120 can be less than or equal to the width dimension of the acoustic channel 120. The second reinforcing portion 1231 can extend along the thickness direction of the third sidewall 102. In this embodiment, the thickness direction of the third sidewall 102 is consistent with the thickness direction of the electroacoustic housing assembly 100, as shown by the Z-axis direction in the drawings. The second reinforcing portion 1231 can be used to support the electroacoustic conversion assembly 200 located within the receiving cavity.

[0076] In this embodiment, by making the reinforcing rib 123 include a first reinforcing part 1230 and a second reinforcing part 1231, it can not only improve the supporting effect of the reinforcing rib 123 on the fourth sub-side wall 122 during the welding process and prevent the fourth sub-side wall 122 from collapsing, but also achieve support for the electroacoustic conversion component 200 housed in the housing cavity, so as to improve the stability of the electroacoustic conversion component 200.

[0077] Among them, such as Figure 10 As shown, Figure 10 for Figure 4 This is a partially enlarged schematic diagram of region A in the first housing 10 shown. The acoustic channel 120 includes a first sub-acoustic channel 1201 and a second sub-acoustic channel 1202 located on opposite sides of the reinforcing rib 123. It can be understood that the first sub-acoustic channel 1201, the reinforcing rib 123, and the second sub-acoustic channel 1202 are arranged sequentially along the length direction of the acoustic channel 120. The length direction of the acoustic channel 120 is consistent with the length direction of the third sidewall 102. In this embodiment, the length direction of the third sidewall 102 is consistent with the length direction of the electroacoustic housing assembly 100, as shown in the attached diagram. Figure 8 As shown in the X-axis direction. Of course, in other possible embodiments, if the third sidewall 102 is disposed adjacent to the first sidewall 101, the length direction of the third sidewall 102 can refer to the width direction of the electroacoustic housing assembly 100.

[0078] The dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 is less than or equal to 5 mm. Optionally, the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 is greater than or equal to 3 mm and less than or equal to 5 mm. Exemplarily, the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 can be 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm. Of course, in other possible embodiments, the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 can be less than 3 mm. In the embodiments of this application, the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 can be referred to the appendix. Figure 10 As shown in L1.

[0079] The dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 is less than or equal to 5 mm. Optionally, the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 is greater than or equal to 3 mm and less than or equal to 5 mm. Exemplarily, the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 can be 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm. Of course, in other possible embodiments, the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 can be less than 3 mm. In one possible embodiment, the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 can be the same as the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120. In the embodiments of this application, the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 can be referred to the appendix. Figure 10 As shown in L2.

[0080] Because the third sidewall 102 has a relatively thin acoustic channel 120, if the length of the first sub-acoustic channel 1201 and / or the second sub-acoustic channel 1202 is too long, even with reinforcing ribs 123 inside the acoustic channel 120, it is difficult to guarantee the strength of the third sidewall 102. When the second connecting part 221 is welded to the fourth sub-sidewall 122, the fourth sub-sidewall 122 is subjected to greater welding pressure and is prone to collapse, which will affect the welding effect between the second connecting part 221 and the fourth sub-sidewall 122. Therefore, by making the dimension of the first sub-acoustic channel 1201 along the length of the acoustic channel 120 less than or equal to 5 mm, and the dimension of the second sub-acoustic channel 1202 along the length of the acoustic channel 120 less than or equal to 5 mm, the collapse of the fourth sub-sidewall 122 can be avoided, thereby improving the welding quality between the second connecting part 221 and the fourth sub-sidewall 122.

[0081] In one possible embodiment, such as Figure 11 As shown, Figure 11 for Figure 8 The diagram shows a partially enlarged view of region B in the first housing 10. The welding surfaces for welding the fourth sub-sidewall 122 to the second connecting part 221 include a first sub-welding surface 1220 and a second sub-welding surface 1221. The projection of the first sub-welding surface 1220 onto the surface of the acoustic hole channel 120 covers the acoustic hole channel 120, and the first sub-welding surface 1220 is a plane. The projection of the second sub-welding surface 1221 onto the surface of the acoustic hole channel 120 is outside the acoustic hole channel 120, and the second sub-welding surface 1221 is an inclined plane.

[0082] Understandably, the first sub-welding surface 1220 is aligned with the acoustic aperture channel 120 along the thickness direction of the electroacoustic housing assembly 100. The second sub-welding surface 1221 is offset from the acoustic aperture channel 120 along the thickness direction of the electroacoustic housing assembly 100.

[0083] Since the first housing 10 needs to be connected and cooperated with other structures when the electroacoustic device 1 is used, and the electroacoustic conversion component 200 needs to extend through the second inner cavity to connect to the power supply, the shape of the first housing 10 is usually irregular. The welding surface of the first housing 10 inevitably has a slope. When the slope is welded, it will generate a lateral component force. If the slope is set to correspond to the area where the sound hole channel 120 is opened on the third side wall 102, it will cause the fourth sub-side wall 122 to be subjected to uneven force during the welding process, thereby affecting the welding effect between the second connection part 221 and the fourth sub-side wall 122. Therefore, in this embodiment, by having the projection of the first sub-welding surface 1220 onto the surface of the acoustic channel 120 cover the acoustic channel 120, the first sub-welding surface 1220 is a plane, and the projection of the second sub-welding surface 1221 onto the surface of the acoustic channel 120 is outside the acoustic channel 120, the second sub-welding surface 1221 is an inclined plane, the welding quality and welding strength between the second connecting part 221 and the fourth sub-side wall 122 can be improved.

[0084] In one possible embodiment, the tilt angle of the second sub-welding surface 1221 is less than or equal to 30°. Optionally, the tilt angle of the second sub-welding surface 1221 is greater than or equal to 20° and less than or equal to 30°. Exemplarily, the tilt angle of the second sub-welding surface 1221 can be 20°, or 21°, or 22°, or 23°, or 24°, or 25°, or 26°, or 27°, or 28°, or 29°, or 30°. Of course, in other possible embodiments, the tilt angle of the second sub-welding surface 1221 can be less than 20°.

[0085] By making the tilt angle of the second sub-welding surface 1221 less than or equal to 30°, the lateral component force generated when the second connecting part 221 is welded to the fourth sub-side wall 122 can be reduced, ensuring the uniformity of the force on the fourth sub-side wall 122, thereby ensuring the welding quality and welding strength of the second connecting part 221 and the fourth sub-side wall 122.

[0086] In one possible embodiment, please refer to Figure 6 , Figure 7 , Figure 9 and Figure 12The sum of the width of the first body portion 1101 and the width of the second body portion 1120 is greater than or equal to 0.75 mm, and / or the sum of the width of the third sub-side wall 121 and the width of the fourth sub-side wall 122 is greater than or equal to 0.75 mm; and / or the width of the second body portion 1120 is greater than or equal to 0.45 mm, and / or the width of the fourth sub-side wall 122 is greater than or equal to 0.45 mm; and / or the width of the first connecting portion 211 is greater than or equal to 0.2 mm, and / or the width of the second connecting portion 221 is greater than or equal to 0.2 mm.

[0087] The sum of the width of the first body portion 1101 and the width of the second body portion 1120 can also be understood as the width of the first sidewall 101. Optionally, the sum of the width of the first body portion 1101 and the width of the second body portion 1120 is greater than or equal to 0.75 mm and less than or equal to 0.85 mm. For example, the sum of the width of the first body portion 1101 and the width of the second body portion 1120 can be 0.75 mm, or 0.76 mm, or 0.77 mm, or 0.78 mm, or 0.79 mm, or 0.80 mm, or 0.81 mm, or 0.82 mm, or 0.83 mm, or 0.84 mm, or 0.85 mm. When the width of the first body portion 1101 and / or the width of the second body portion 1120 are not uniform, a sum of the widths of the first body portion 1101 and the second body portion 1120 being greater than or equal to 0.75 mm can also be understood as the minimum sum of the widths of the first body portion 1101 and the second body portion 1120 being greater than or equal to 0.75 mm. In the embodiments of this application, the sum of the widths of the first body portion 1101 and the second body portion 1120 can be referred to the appendix. Figure 7 As shown in W4.

[0088] The sum of the width of the third sub-sidewall 121 and the width of the fourth sub-sidewall 122 can also be understood as the width of the third sidewall 102. Optionally, the sum of the width of the third sub-sidewall 121 and the width of the fourth sub-sidewall 122 is greater than or equal to 0.75mm and less than or equal to 0.85mm. For example, the sum of the width of the third sub-sidewall 121 and the width of the fourth sub-sidewall 122 can be 0.75mm, or 0.76mm, or 0.77mm, or 0.78mm, or 0.79mm, or 0.80mm, or 0.81mm, or 0.82mm, or 0.83mm, or 0.84mm, or 0.85mm. When the width of the third sub-sidewall 121 and / or the width of the fourth sub-sidewall 122 are not uniform, the sum of the widths of the third sub-sidewall 121 and the fourth sub-sidewall 122 being greater than or equal to 0.75 mm can also be understood as the minimum value of the sum of the widths of the third sub-sidewall 121 and the fourth sub-sidewall 122 being greater than or equal to 0.75 mm. In the embodiments of this application, the sum of the widths of the third sub-sidewall 121 and the fourth sub-sidewall 122 can be referred to the appendix. Figure 12 As shown in W5.

[0089] In one possible embodiment, the inner surface of the third sub-sidewall 121 may also be provided with one or more positioning portions 1102 with reference to the inner surface of the first body portion 1101. The fourth sub-sidewall 122 may also be provided with one or more widening portions 1121 with reference to the second body portion 1120 at the positioning portions 1102 corresponding to the third sub-sidewall 121.

[0090] Optionally, the width of the second body portion 1120 is greater than or equal to 0.45 mm and less than or equal to 0.55 mm. For example, the width of the second body portion 1120 can be 0.45 mm, 0.46 mm, 0.47 mm, 0.48 mm, 0.49 mm, 0.50 mm, 0.51 mm, 0.52 mm, 0.53 mm, 0.54 mm, or 0.55 mm. In this embodiment, the width of the second body portion 1120 being greater than or equal to 0.45 mm means that the minimum width of the second body portion 1120 is greater than or equal to 0.45 mm. In this embodiment, the width of the second body portion 1120 can be referenced in the appendix. Figure 7 As shown in W6.

[0091] Optionally, the width of the fourth sub-sidewall 122 is greater than or equal to 0.45 mm and less than or equal to 0.55 mm. For example, the width of the fourth sub-sidewall 122 can be 0.45 mm, 0.46 mm, 0.47 mm, 0.48 mm, 0.49 mm, 0.50 mm, 0.51 mm, 0.52 mm, 0.53 mm, 0.54 mm, or 0.55 mm. When the width of the fourth sub-sidewall 122 is not uniform, a width greater than or equal to 0.45 mm can also be understood as the minimum width of the fourth sub-sidewall 122 being greater than or equal to 0.45 mm. In this embodiment, the width of the fourth sub-sidewall 122 can be referred to the appendix. Figure 12 As shown in W7.

[0092] In one possible embodiment, the width of the third sub-sidewall 121 may be the same as the width of the first body portion 1101, and the width of the fourth sub-sidewall 122 may be the same as the width of the second body portion 1120.

[0093] Optionally, the width of the first connecting portion 211 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm. For example, the width of the first connecting portion 211 can be 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, or 0.30 mm. When the width of the first connecting portion 211 is not uniform, a width greater than or equal to 0.2 mm can also be understood as the minimum width of the first connecting portion 211 being greater than or equal to 0.2 mm. In this embodiment, the width of the first connecting portion 211 can be referred to the attached figure. Figure 7 As shown in W8.

[0094] Optionally, the width of the second connecting portion 221 is greater than or equal to 0.2 mm and less than or equal to 0.3 mm. Exemplarily, the width of the second connecting portion 221 can be 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, or 0.30 mm. When the width of the second connecting portion 221 is not uniform, a width greater than or equal to 0.2 mm can also be understood as the minimum width of the second connecting portion 221 being greater than or equal to 0.2 mm. In this embodiment, the width of the second connecting portion 221 can be referred to the appendix. Figure 12 As shown in W9.

[0095] By designing the sum of the widths of the first body portion 1101 and the second body portion 1120, the width of the second body portion 1120, and the width of the first connecting portion 211, the width of the first anti-overflow groove 30 between the first side wall 101 of the first housing 10 and the second side wall 201 of the second housing 20, as well as the welding area between the first side wall 101 and the second side wall 201, can be taken into account, thereby ensuring the welding effect between the first side wall 101 and the second side wall 201. Similarly, by designing the sum of the widths of the third sub-side wall 121 and the fourth sub-side wall 122, the width of the fourth sub-side wall 122, and the width of the second connecting portion 221, the width of the second anti-overflow groove 40 between the third side wall 102 of the first housing 10 and the fourth side wall 202 of the second housing 20, as well as the welding area between the third side wall 102 and the fourth side wall 202, can be taken into account, thereby ensuring the welding effect between the third side wall 102 and the fourth side wall 202.

[0096] In one possible embodiment, please refer to Figure 6 and Figure 9 The cross-sectional shape of the first connecting part 211 is trapezoidal, and / or the cross-sectional shape of the second connecting part 221 is trapezoidal.

[0097] Wherein, when the cross-sectional shape of the first connecting part 211 is trapezoidal, the width of the upper base of the cross-section of the first connecting part 211 is smaller than the width of the lower base of the cross-section of the first connecting part 211. When the cross-sectional shape of the second connecting part 221 is trapezoidal, the width of the upper base of the cross-section of the second connecting part 221 is smaller than the width of the lower base of the cross-section of the second connecting part 221.

[0098] When the cross-sectional shape of the first connecting part 211 is trapezoidal, the width of the upper base of the cross-section of the first connecting part 211 is greater than or equal to 0.2 mm, and the width of the lower base of the cross-section of the first connecting part 211 is greater than or equal to 0.35 mm. When the cross-sectional shape of the second connecting part 221 is trapezoidal, the width of the upper base of the cross-section of the second connecting part 221 is greater than or equal to 0.2 mm, and the width of the lower base of the cross-section of the second connecting part 221 is greater than or equal to 0.35 mm.

[0099] Optionally, the cross-sectional shape of the first connecting part 211 is trapezoidal, the width of the upper base of the cross-section of the first connecting part 211 is greater than or equal to 0.2 mm and less than 0.25 mm, and the width of the lower base of the cross-section of the first connecting part 211 is greater than or equal to 0.35 mm and less than 0.4 mm.

[0100] Optionally, the cross-sectional shape of the second connecting part 221 is trapezoidal, the width of the upper base of the cross-section of the second connecting part 221 is greater than or equal to 0.2 mm and less than 0.25 mm, and the width of the lower base of the cross-section of the second connecting part 221 is greater than or equal to 0.35 mm and less than 0.4 mm.

[0101] In one possible embodiment, the cross-sections of the first connecting portion 211 and the second connecting portion 221 are both trapezoidal. The width of the upper base of the cross-section of the first connecting portion 211 and the width of the upper base of the cross-section of the second connecting portion 221 can be the same, and the width of the lower base of the cross-section of the first connecting portion 211 and the width of the lower base of the cross-section of the second connecting portion 221 can be the same.

[0102] By making the cross-sectional shape of the first connecting portion 211 trapezoidal, it is beneficial to increase the welding energy when welding the first connecting portion 211 to the second sub-side wall 112, thereby improving the welding strength between the first connecting portion 211 and the second sub-side wall 112. By making the cross-sectional shape of the second connecting portion 221 trapezoidal, it is beneficial to increase the welding energy when welding the second connecting portion 221 to the fourth sub-side wall 122, thereby improving the welding strength between the second connecting portion 221 and the fourth sub-side wall 122.

[0103] In one possible embodiment, the welding between the first connecting part 211 and the second sub-side wall 112, and the welding between the second connecting part 221 and the fourth sub-side wall 122 can be performed simultaneously; the welding energy when welding between the first connecting part 211 and the second sub-side wall 112, and the welding energy when welding between the second connecting part 221 and the fourth sub-side wall 122 can be the same.

[0104] By designing the width of the upper bottom edge and the width of the lower bottom edge of the cross-section of the first connecting part 211 to be smaller than the width of the second body part 1120, it is possible to avoid the situation where the first connecting part 211 and the second body part 1120 are partially misaligned during the welding process, resulting in a step floating, thereby avoiding the dispersion of ultrasonic energy and improving the welding effect between the first connecting part 211 and the second sub-sidewall 112. By designing the width of the upper bottom edge and the width of the lower bottom edge of the cross-section of the second connecting part 221 to be smaller than the width of the fourth sub-side wall 122, it is possible to avoid the second connecting part 221 and the fourth sub-side wall 122 from being partially misaligned during the welding process, thus preventing the formation of a step floating. This also avoids the dispersion of ultrasonic energy and improves the welding effect between the second connecting part 221 and the fourth sub-side wall 122.

[0105] In one possible embodiment, such as Figure 13 As shown, Figure 13 for Figure 5 The diagram shows a cross-sectional view of the second housing 20 along line CC. When the cross-sectional shape of the first connecting portion 211 is trapezoidal, and the end of the first connecting portion 211 away from the third body portion 210 has a first rounded corner 2110, the width of the second body portion 1120 is greater than or equal to 0.5 mm, and the width of the lower base of the cross-section of the first connecting portion 211 is greater than or equal to 0.4 mm; and / or, when the cross-sectional shape of the second connecting portion 221 is trapezoidal, and the end of the second connecting portion 221 away from the fourth body portion 220 has a second rounded corner 2210, the width of the fourth sub-sidewall 122 is greater than or equal to 0.5 mm, and the width of the lower base of the cross-section of the second connecting portion 221 is greater than or equal to 0.4 mm.

[0106] The width of the upper bottom edge of the cross-section of the first connecting part 211 can be referenced. Figure 13 As shown in W81, the width of the lower bottom edge of the cross-section of the first connecting part 211 can be referenced. Figure 13 As shown in W82; the width of the upper bottom edge of the cross-section of the second connecting part 221 can be referenced. Figure 13 As shown in W91, the width of the lower bottom edge of the cross-section of the second connecting part 221 can be referenced. Figure 13 As shown in W92.

[0107] This application does not specifically limit the number or size of the first fillet 2110. Optionally, during the welding process between the first connecting portion 211 and the second body portion 1120, if the bottom edge of the first connecting portion 211 cannot fully contact the second body portion 1120, then the end of the first connecting portion 211 away from the second body portion 1120 can be considered to have at least one first fillet 2110. This application does not specifically limit the number or size of the second fillet 2210. Optionally, during the welding process between the second connecting portion 221 and the fourth sub-sidewall 122, if the bottom edge of the second connecting portion 221 cannot fully contact the fourth sub-sidewall 122, then the end of the second connecting portion 221 away from the fourth body portion 220 can be considered to have at least one second fillet 2210.

[0108] The one-piece injection molding process facilitates the formation of a single, integrated first housing 10 with a plastic substrate. However, due to the influence of the injection mold, the end of the first connecting portion 211 in the injection-molded first housing 10, away from the second body portion 1120, inevitably has a first rounded corner 2110 of varying size. In this case, by widening the width of the second body portion 1120 and the bottom edge width of the cross-section of the first connecting portion 211, the impact of the first rounded corner 2110 on the welding between the first connecting portion 211 and the second body portion 1120 can be reduced, ensuring a good welding effect between the first connecting portion 211 and the second body portion 1120. Similarly, when a second rounded corner 2210 exists, by widening the width of the fourth sub-sidewall 122 and the bottom edge width of the cross-section of the second connecting portion 221, the impact of the second rounded corner 2210 on the welding between the fourth sub-sidewall 122 and the second connecting portion 221 can be reduced, ensuring a good welding effect between the second connecting portion 221 and the fourth sub-sidewall 122.

[0109] In one possible embodiment, the substrate of the first housing 10 comprises a first plastic having a density of less than 1.18 g / cm³. 3 And / or, the substrate of the second housing 20 comprises a second plastic, the density of which is less than 1.18 g / cm³. 3 .

[0110] Optionally, the first plastic may include, but is not limited to, polyamide (PA) plastic, polypropylene (PP) plastic, polystyrene (PS) plastic, or polyethylene (PE) plastic. The second plastic may include, but is not limited to, polyamide (PA) plastic, polypropylene (PP) plastic, polystyrene (PS) plastic, or polyethylene (PE) plastic. In one possible embodiment, the first plastic is PA plastic, and / or, the second plastic is PA plastic.

[0111] By making the substrate of the first housing 10 include a first plastic, the density of the first plastic being less than 1.18 g / cm³. 3This helps to reduce the weight of the first housing 10 by making the substrate of the second housing 20 include a second plastic with a density of less than 1.18 g / cm³. 3 This helps to reduce the weight of the second housing 20, thereby facilitating the lightweight development of the electroacoustic housing assembly 100.

[0112] In one possible embodiment, the material of the first housing 10 further includes at least one first additive material, the density of which is less than that of the first plastic, and / or, the melting point of which is different from that of the first plastic; and / or, the material of the second housing 20 further includes at least one second additive material, the density of which is less than that of the second plastic, and / or, the melting point of which is different from that of the second plastic.

[0113] This application does not specifically limit the number of first additives included in the material of the first housing 10. Optionally, the material of the first housing 10 may include one type of first additive, or two types of first additives, or three types of first additives.

[0114] This application does not specifically limit the number of types of second additives included in the material of the second housing 20. Optionally, the material of the second housing 20 may include one type of second additive, or two types of second additives, or three types of second additives.

[0115] In one possible embodiment, the density of the first additive material may be less than or equal to 0.8 g / cm³. 3 The density of the second additive can be less than or equal to 0.8 g / cm³. 3 .

[0116] In another possible embodiment, the melting point of the first additive material may be higher than the melting point of the first plastic, and the melting point of the second additive material may be higher than the melting point of the second plastic; or, the melting point of the first additive material may be lower than the melting point of the first plastic, and the melting point of the second additive material may be lower than the melting point of the second plastic.

[0117] In a third possible embodiment, the melting point of the first additive material may include the melting point of the first plastic. The melting point of the second additive material may include the melting point of the second plastic.

[0118] In this process, the first additive material has a lower mass percentage in the material of the first shell 10 than the mass percentage of the first plastic. Similarly, the second additive material has a lower mass percentage in the material of the second shell 20 than the mass percentage of the second plastic. For example, the first additive material can be one of hollow glass microspheres, glass fiber, or carbon fiber. The second additive material can also be one of hollow glass microspheres, glass fiber, or carbon fiber. The first and second additive materials can be the same or different.

[0119] By including at least one first additive material in the material of the first housing 10, the weight of the first housing 10 can be further reduced when the density of the first additive material is less than that of the first plastic. Furthermore, when the melting point of the first additive material differs from that of the first plastic, the melting point width of the first housing 10 can be widened, thereby further improving the welding effect between the first housing 10 and the second housing 20. Similarly, by including at least one second additive material in the material of the second housing 20, the weight of the second housing 20 can be further reduced when the density of the second additive material is less than that of the second plastic. Moreover, when the melting point of the second additive material differs from that of the second plastic, the melting point width of the second housing 20 can be widened, thereby further improving the welding effect between the second housing 20 and the first housing 10.

[0120] The first housing 10 and the second housing 20 of the electroacoustic housing assembly 100 are welded together by ultrasonic welding process.

[0121] Specifically, the first connecting part 211 is welded to the second sub-sidewall 112 by ultrasonic welding, and the second connecting part 221 is welded to the fourth sub-sidewall 122 by ultrasonic welding. In this embodiment, the welding of the first connecting part 211 to the second sub-sidewall 112 and the welding of the second connecting part 221 to the fourth sub-sidewall 122 can be performed simultaneously.

[0122] Ultrasonic welding utilizes high-frequency vibration waves transmitted to the surfaces of two objects to be welded. Under pressure, the surfaces of the two objects rub against each other, forming a fusion between molecular layers. Optionally, in the process of welding the first housing 10 and the second housing 20 together using ultrasonic welding, the first housing 10 is supported on a frame, and the second housing 20 is mounted on the ultrasonic welding head to receive vibration energy.

[0123] By welding the first housing 10 and the second housing 20 together using ultrasonic welding, it is beneficial to improve the welding speed, welding strength, and sealing performance of the first housing 10 and the second housing 20, and to make the welding process of the first housing 10 and the second housing 20 environmentally friendly and safe.

[0124] Optionally, the amplitude of the ultrasonic waves can be relatively high during the ultrasonic welding process of welding the first housing 10 and the second housing 20, for example, it can be 80% to 90% of the amplitude of the ultrasonic welding machine.

[0125] Optionally, during the ultrasonic welding process of the first housing 10 and the second housing 20, the power of the ultrasonic transducer can be 2 to 3 times the power of the ultrasonic welding machine. For example, an ultrasonic transducer with 2.5 times the power is used in the ultrasonic welding process.

[0126] By increasing the amplitude of the ultrasonic waves and / or increasing the power of the ultrasonic transducer in the ultrasonic welding process, the welding quality and strength of the first housing 10 and the second housing 20 can be improved.

[0127] Optionally, during the ultrasonic welding process between the first housing 10 and the second housing 20, a plug is used to fill the acoustic channel 120 of the electroacoustic housing assembly 100. The plug can be made of plastic, wood, rubber, metal, etc. The size of the plug can be equal to or slightly smaller than the size of the acoustic channel 120. In an embodiment where the acoustic channel 120 includes a first sub-acoustic channel 1201 and a second sub-acoustic channel 1202, the first sub-acoustic channel 1201 can be filled with a first plug, and the second sub-acoustic channel 1202 can be filled with a second plug. In this case, the size of the first plug can be equal to or slightly smaller than the size of the first sub-acoustic channel 1201. The size of the second plug can be equal to or slightly smaller than the size of the second sub-acoustic channel 1202.

[0128] In the ultrasonic welding process, by filling the acoustic hole channel 120 of the electroacoustic housing assembly 100 with plugs, the strength of the side wall of the electroacoustic housing assembly 100 with the acoustic hole channel 120 can be increased during welding, thus avoiding the side wall from cracking due to insufficient strength during the welding process, which would result in poor welding effect.

[0129] The features mentioned above in the specification, claims, and drawings can be combined in any way as long as they are meaningful within the scope of this application. The advantages and features described for the electroacoustic housing device are applied accordingly to the electroacoustic device 1 and the electronic device 1000.

[0130] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. An electroacoustic housing assembly, characterized in that, include: A first housing, the first housing including a first sidewall, the first sidewall including a first sub-sidewall and a second sub-sidewall bent and connected, the first sub-sidewall including a first body portion and a positioning portion disposed on the inner surface of the first body portion, the second sub-sidewall including a second body portion and a widened portion disposed on the side of the second body portion away from the first body portion, the projection of the widened portion on the inner surface of the first body portion covering at least part of the positioning portion. and A second housing is fastened to at least a portion of the first housing, and a receiving cavity for accommodating an electroacoustic conversion assembly is formed between the second housing and the first housing. The second housing includes a second sidewall, which includes a third body portion and a first connecting portion disposed at one end of the third body portion. The third body portion is disposed on the second body portion and forms a first anti-overflow groove between it and the first body portion. The first connecting portion is welded to the second sub-sidewall.

2. The electroacoustic housing assembly according to claim 1, characterized in that, The width of the positioning part is greater than or equal to 0.05 mm; the distance between the third body part and the first body part is greater than or equal to 0.05 mm and less than or equal to 0.15 mm; the width of the widened part is greater than or equal to 0.05 mm.

3. The electroacoustic housing assembly according to claim 1, characterized in that, The first housing further includes a third sidewall connected to the first sidewall. The third sidewall is provided with a sound hole channel. The third sidewall includes a third sub-sidewall and a fourth sub-sidewall that are bent and connected, and a reinforcing rib that is at least partially disposed in the sound hole channel. The second housing further includes a fourth sidewall connected to the second sidewall. The fourth sidewall includes a fourth body portion and a second connecting portion disposed at one end of the fourth body portion. The fourth body portion is disposed on the fourth sub-sidewall and forms a second anti-overflow groove between it and the third sub-sidewall. The second connecting portion is welded to the fourth sub-sidewall.

4. The electroacoustic housing assembly according to claim 3, characterized in that, The reinforcing rib includes a first reinforcing part and a second reinforcing part. The first reinforcing part is located inside the acoustic hole channel and extends along the width direction of the acoustic hole channel. The second reinforcing part is connected to the end of the first reinforcing part near the receiving cavity and is located outside the acoustic hole channel.

5. The electroacoustic housing assembly according to claim 3, characterized in that, The acoustic channel includes a first sub-acoustic channel and a second sub-acoustic channel located on opposite sides of the reinforcing rib. The first sub-acoustic channel has a dimension of less than or equal to 5 mm along the length of the acoustic channel, and the second sub-acoustic channel has a dimension of less than or equal to 5 mm along the length of the acoustic channel.

6. The electroacoustic housing assembly according to claim 3, characterized in that, The welding surface for welding the fourth sub-sidewall to the second connecting part includes a first sub-welding surface and a second sub-welding surface. The projection of the first sub-welding surface onto the surface where the acoustic hole channel is located covers the acoustic hole channel. The first sub-welding surface is a plane. The projection of the second sub-welding surface onto the surface where the acoustic hole channel is located is outside the acoustic hole channel. The second sub-welding surface is an inclined plane.

7. The electroacoustic housing assembly according to claim 6, characterized in that, The tilt angle of the second sub-welded surface is less than or equal to 30°.

8. The electroacoustic housing assembly according to claim 3, characterized in that, The sum of the width of the first body portion and the width of the second body portion is greater than or equal to 0.75 mm, and / or the sum of the width of the third sub-sidewall and the width of the fourth sub-sidewall is greater than or equal to 0.75 mm; and / or the width of the second body portion is greater than or equal to 0.45 mm, and / or the width of the fourth sub-sidewall is greater than or equal to 0.45 mm; and / or the width of the first connecting portion is greater than or equal to 0.2 mm, and / or the width of the second connecting portion is greater than or equal to 0.2 mm.

9. The electroacoustic housing assembly according to claim 3, characterized in that, The cross-sectional shape of the first connecting part is trapezoidal, and / or the cross-sectional shape of the second connecting part is trapezoidal.

10. The electroacoustic housing assembly according to claim 9, characterized in that, When the cross-sectional shape of the first connecting part is trapezoidal, the width of the upper base of the cross-section of the first connecting part is greater than or equal to 0.2 mm, and the width of the lower base of the cross-section of the first connecting part is greater than or equal to 0.35 mm; when the cross-sectional shape of the second connecting part is trapezoidal, the width of the upper base of the cross-section of the second connecting part is greater than or equal to 0.2 mm, and the width of the lower base of the cross-section of the second connecting part is greater than or equal to 0.35 mm.

11. The electroacoustic housing assembly according to claim 9, characterized in that, When the cross-sectional shape of the first connecting part is trapezoidal and the end of the first connecting part away from the third body part has a first rounded corner, the width of the second body part is greater than or equal to 0.5 mm, and the width of the lower base of the cross-section of the first connecting part is greater than or equal to 0.4 mm; when the cross-sectional shape of the second connecting part is trapezoidal and the end of the second connecting part away from the fourth body part has a second rounded corner, the width of the fourth sub-sidewall is greater than or equal to 0.5 mm, and the width of the lower base of the cross-section of the second connecting part is greater than or equal to 0.4 mm.

12. The electroacoustic housing assembly according to any one of claims 1 to 11, characterized in that, The substrate of the first housing comprises a first plastic, the density of which is less than 1.18 g / cm³. 3 ; and / or, the substrate of the second housing comprises a second plastic, the density of which is less than 1.18 g / cm³. 3 .

13. The electroacoustic housing assembly according to claim 12, characterized in that, The first plastic is PA plastic, and / or the second plastic is PA plastic.

14. The electroacoustic housing assembly according to claim 12, characterized in that, The material of the first shell further includes at least one first additive material, the density of which is less than the density of the first plastic, and / or the melting point of which is different from that of the first plastic; and / or the material of the second shell further includes at least one second additive material, the density of which is less than the density of the second plastic, and / or the melting point of which is different from that of the second plastic.

15. The electroacoustic housing assembly according to any one of claims 1 to 11, 13, and 14, characterized in that, The first housing and the second housing are welded together by ultrasonic welding.

16. An electroacoustic device, characterized in that, It includes an electroacoustic conversion component and an electroacoustic housing assembly according to any one of claims 1 to 15, wherein the electroacoustic conversion component is disposed within the electroacoustic housing assembly.

17. An electronic device, characterized in that, It includes a device housing and an electroacoustic device according to claim 16, wherein the electroacoustic device is disposed within the device housing.

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