CN212910010U - Sound generating device and shell assembly thereof - Google Patents

Abstract

The utility model relates to a sound generating mechanism and housing assembly thereof, housing assembly includes casing and sealed plug, be equipped with a jack on the casing, sealed plug sets to can fill in and sealed jack, the pore wall definition of jack is for following the first wall section of hole and the second wall section of hole that the direction of filling in of sealed plug connected in order, on the reference plane that is on a parallel with the direction of filling in, the contained angle that forms between second wall section of hole and the first wall section of hole is an obtuse angle, and the cross-sectional area of second wall section on the reference cross-section of direction is filled in to the perpendicular to is crescent along the direction of filling in, sealed plug is including the plug portion that can fill in the jack, be equipped with annular arch on the plug portion, when the plug portion is filled in the jack, annular arch forms elastic butt with second wall section. So, sealed plug can seal the jack to increase shell assembly's waterproof dustproof performance, can also be in its opposite direction of filling in the direction by second pore wall section backstop, and then avoid sealed plug to follow to insert and withdraw from in the jack.

Description

Sound generating device and shell assembly thereof

Technical Field

The application relates to the technical field of acoustic output equipment, in particular to a sound generating device and a shell assembly thereof.

Background

The sound generating device is widely applied to daily life of people, and can be matched with electronic equipment such as a mobile phone, a tablet personal computer and a notebook computer for use, so that a hearing feast is provided for a user. Wherein, various plug jacks can be arranged on the sound generating device to realize corresponding functions. For example: the jack may correspond to a USB socket so that the sound generating device can realize functions such as charging through the USB socket and a corresponding cable. For another example: the jack may correspond to an audio interface, so that the sound generating device may be connected to the electronic device through the audio interface and a corresponding cable to implement functions such as data transmission. Obviously, the sound generating device is communicated with the external environment at the inserting hole, and the performances of water resistance, dust resistance and the like of the sound generating device can be influenced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a be applied to sound generating mechanism's casing assembly, wherein, this casing assembly includes casing and sealed plug, be equipped with a jack on the casing, sealed plug sets to can fill in and sealed jack, the pore wall definition of jack is for following the first wall section and the second wall section that the direction of filling in of sealed plug connected in order, on the reference plane that is on a parallel with the direction of filling in, the contained angle that forms between second wall section and the first wall section is an obtuse angle, and the cross-sectional area of second wall section on the reference cross-section of direction is filled in to the perpendicular to is increased gradually along filling in the direction, sealed plug includes the plug portion that can fill in the jack, be equipped with annular bulge on the plug portion, when the plug portion is filled in the jack, annular bulge forms elastic butt with the second wall section.

The embodiment of the application also provides a sound generating device, wherein, this sound generating device includes core and above-mentioned casing assembly, and the core is fixed on the casing.

The beneficial effect of this application is: in the housing assembly that this application provided, sealed plug not only can seal the jack to the butt joint, in order to increase housing assembly's waterproof dustproof performance, and can fill in the opposite direction of direction in it by second pore wall section backstop (because of the contained angle that forms between its and the first pore wall section is an obtuse angle, and expand gradually and be the loudspeaker form in first pore wall section along filling in the direction), and then avoid sealed plug to withdraw from in the jack because of elastic recovery, also be that sealed plug can be stopped by the casing after filling in the jack.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a sound generating device provided in the present application;

FIG. 2 is an exploded view of one embodiment of the housing assembly of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the housing assembly of FIG. 2 taken along line III-III;

FIG. 4 is a partially enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the housing of FIG. 3;

FIG. 6 is a schematic structural view of an embodiment of the sealing plug of FIG. 3;

FIG. 7 is a schematic structural view of the sealing plug of FIG. 6 from another perspective;

FIG. 8 is a schematic structural view of another embodiment of the sealing plug of FIG. 3;

fig. 9 is a schematic structural view of another embodiment of the sealing rubber plug in fig. 3.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of an embodiment of a sound generating device provided by the present application, and fig. 2 is an exploded structural diagram of an embodiment of a housing assembly in fig. 1.

In the present application, the sound generating device 10 may be a hearing aid, a listening bracelet, an earphone, a sound box, smart glasses, or other devices with acoustic output capability. In the present embodiment, the sound generating device 10 is exemplified as a bone conduction earphone.

As shown in fig. 1, the sound emitting device 10 may include two movements 20, two housing assemblies 30, and a rear suspension assembly 40. One end of each housing assembly 30 is connected to a corresponding movement 20, and two ends of the rear hanging assembly 40 are connected to the other ends of the two housing assemblies 30 far from the movement 20. Further, the two housing assemblies 30 may be both curved so as to be respectively hung on the two ears of the user; the rear hanging component 40 may also be curved so as to be wound around the rear side of the head of the user, thereby facilitating the use requirement of the user wearing the sound generating device 10. The arrangement is such that when the sound generating device 10 is in a wearing state, the two movements 20 are respectively positioned on the left side and the right side of the head of the user; and under the cooperation of the two shell assemblies 30 and the rear hanging assembly 40, the two movements 20 can clamp the head of the user and contact the skin of the user, and then sound transmission can be realized based on bone conduction technology.

Further, in conjunction with fig. 2, the sound generating device 10 may further include a main board 50 and a battery (not shown in fig. 1 and 2). The main board 50 and the battery can be electrically connected with the two movements 20 through corresponding conductors; the former can be used to control the sound production of the movement 20 (mainly converting the electrical signal into mechanical vibration), and the latter can be used to provide the sound production device 10 (specifically, two movements 20) with electrical energy. Of course, the sound generating apparatus 10 described herein may further include microphones such as a microphone and a sound pick-up, and may further include Communication devices such as bluetooth and NFC (Near Field Communication), which are electrically connected to the main board 50 and the battery through corresponding conductors to implement corresponding functions.

It should be noted that: the application core 20 be provided with two, two cores 20 all can sound, mainly realize the stereo sound effect for the convenience of sound generating mechanism 10, and then improve sound generating mechanism 10's acoustics expressive force. Therefore, in other application scenarios where the requirement for stereo sound is not particularly high, such as hearing assistance of hearing patients, live (live) speech, etc., the sound generating device 10 may be provided with only one movement 20.

As shown in fig. 2, the housing assembly 30 may include a housing 31 and a garnish 32. The decoration 32 may be assembled with the housing 31 by one or a combination of assembling methods such as gluing, clamping, riveting, and the like. So set up to when sound generating mechanism 10 is in wearing the state, decoration 32 is located the shell 31 and deviates from one side of core 20, is located the outside of sound generating mechanism 10 promptly to decoration 32 decorates shell 31, and then increases sound generating mechanism 10's outward appearance aesthetic feeling.

Further, the housing 31 may include a fixing portion 311, a bending transition portion 312, and an accommodating chamber 313 connected in sequence. The fixing portion 311 is mainly used to fix the movement 20, and the fixing portion and the movement can be assembled by one or a combination of assembling manners such as glue joint, clamping joint, riveting and the like. The bending transition portion 312 connects the accommodating chamber 313 and the fixing portion 311, and is bent to facilitate the housing assembly 30 to be hung outside of the human ear. Further, one end of the accommodating chamber 313 far from the fixing portion 311 can be connected with the rear hanging component 40 by one or a combination of assembly modes such as glue joint, clamping joint and threaded connection, so as to facilitate the assembly between the shell component 30 and the rear hanging component 40. One end of the receiving chamber 313 is open to receive the main board 50 or the battery. At this time, the housing 31 may further include a bin cover 314, and the bin cover 314 is covered on the opening end of the accommodating bin 313. Further, since the main board 50 or the battery and the movement 20 are disposed at two ends of the housing 31, the housing 31 may be provided with a wiring groove 315 at least at the bending transition portion 312 so as to facilitate the conductor to be inserted. At this point, the trim piece 32 may be inserted into the routing channel 315, thereby covering the conductors within the routing channel 315. By the arrangement, the appearance aesthetic feeling of the sound generating device 10 can be increased, and the wiring structure can be conveniently arranged.

For the case assembly 30 shown in fig. 2, the accommodating chamber 313 may be mainly used for accommodating the main board 50. At this time, the housing assembly 30 may further include a control key 33 and a USB socket 34. The control key 33 and the USB socket 34 may be disposed in the accommodating compartment 313, so that the two are electrically connected to the motherboard 50, and the routing distance between the two is shortened. At this time, the control key 33 may be partially exposed outside the housing 31, and the USB socket 34 may communicate with the external environment through a corresponding jack (described later) to facilitate corresponding operations performed by the user. With such an arrangement, the control key 33 may be used to implement the functions of turning on and off the sound generating device 10, adjusting the volume, and the like, and the USB socket 34 may be used to implement the functions of data transmission, charging, and the like. The USB socket 34 may be a USB interface, a Type-C interface, a Lightning interface, or the like. Further, the housing assembly 30 may also include an indicator light 35. The indicator light 35 may be disposed on the accommodating compartment 313, so as to be connected to the main board 50, thereby shortening the distance of the wiring. At this time, the indicator lamp 35 may be partially exposed outside the housing 31, as shown in fig. 2. So set up, pilot lamp 35 can charge at sound generating mechanism 10, the electric quantity is not enough etc. under the scene suggestion.

It should be noted that: the main board 50 and the battery may be provided in the two housing assemblies 30 shown in fig. 1, respectively. With such an arrangement, the capacity of the battery can be increased to improve the cruising ability of the sound generating device 10; the weight of the sound generator 10 may also be balanced to improve the wearing comfort of the sound generator 10. Further, when the sound generating device 10 is worn, the sound generating device 10 will be hung outside the human ear. Specifically, the movement 20 is generally located on the front side of the human ear, and the main board 50 or battery is generally located on the rear side of the human ear. At this time, the human ear supports the sound generating device 10 as a fulcrum, so that the human ear will bear most of the weight of the sound generating device 10. The user may cause discomfort after wearing the sound emission device 10 for a long time. For this reason, the casing 31 (especially the bending transition portion 312) is generally made of a soft material, so as to improve the wearing comfort of the sound emitting device 10. The material of the housing 31 may be, but is not limited to, Polycarbonate (PC), Polyamide (PA), Acrylonitrile Butadiene Styrene (ABS), Polystyrene (PS), High Impact Polystyrene (High Impact Polystyrene, HIPS), Polypropylene (PP), Polyethylene Terephthalate (PET), Polyvinyl Chloride (PVC), Polyurethane (PU), Polyethylene (PE), Phenol Formaldehyde (PF), Urea Formaldehyde (Urea-Formaldehyde, UF), Melamine-Formaldehyde (MF), silicone, and the like. Further, since the shell 31 has a soft texture, there is a risk that the shell 31 may have insufficient rigidity and may be difficult to maintain its structure by an external force, or may have insufficient strength and may break. For this purpose, the shell 31 may be provided with an elastic wire (not shown in fig. 2 and 3) inside (at least in the bending transition 312) so as to improve the strength of the shell 31 and thus increase the reliability of the shell 31. The elastic metal wire may be made of spring steel, titanium alloy, titanium-nickel alloy, chromium-molybdenum steel, etc. In this case, the housing 31 may be a metal insert molded integrally.

Referring to fig. 3 to 7 together, fig. 3 is a schematic sectional view of the housing assembly of fig. 2 along the direction III-III, fig. 4 is a partially enlarged view of a portion a of fig. 3, fig. 5 is a schematic sectional view of the housing of fig. 3, fig. 6 is a schematic sectional view of an embodiment of the sealing rubber plug of fig. 3, and fig. 7 is a schematic structural view of the sealing rubber plug of fig. 6 from another view angle. It should be noted that: the direction indicated by the arrow B in fig. 3 can be simply regarded as the plugging direction of the sealing plug.

Based on the above description, as shown in fig. 3 and fig. 5, the housing 31 (specifically, the accommodating chamber 313) can be used to form an accommodating cavity 318, and the chamber cover 314 covers the opening end of the accommodating chamber 313. Wherein the USB socket 34 may be disposed in the receiving cavity 318. Correspondingly, as shown in fig. 3 and fig. 5, a patch jack 319 may be disposed on the housing 31 (specifically, the receiving chamber 313), the patch jack 319 is communicated with the receiving chamber 318, and the USB socket 34 may be disposed corresponding to the patch jack 319, that is, the USB socket 34 can be communicated with the external environment through the patch jack 319, so that the sound generating device 10 can implement functions of data transmission, charging, and the like. Further, referring to fig. 3 and fig. 2, the housing assembly 30 may further include a sealing rubber plug 38, the sealing rubber plug 38 is configured to plug into and seal the plug receptacle 319, that is, the sealing rubber plug 38 can plug into the receptacle 313 through the plug receptacle 319, so as to increase the waterproof and dustproof performance of the housing assembly 30 at this location, especially in a situation where the USB socket 34 is not used.

It should be noted that: with reference to fig. 3, patch holes 319 can also be provided in the cartridge body cover 314, and the seal plugs 38 can be plugged into the cartridge body cover 314 through the patch holes 319. At this point, the cartridge body cover 314 can be simply considered a housing as described herein. Further, in some other embodiments, the USB socket 34 may also be designed as a pogo-PIN component, and may also implement functions of data transmission, charging, and the like.

As shown in fig. 4, the wall of the patch hole 319 may be defined as a first wall segment 3191 and a second wall segment 3192 connected in series along the insertion direction of the sealing plug 38 (as indicated by arrow B in fig. 4). On a reference plane (for example, a plane where the accommodating bin 313 and the sealing rubber plug 38 are located in fig. 4) parallel to the plugging direction, an included angle formed between the second hole wall segment 3192 and the first hole wall segment 3191 is an obtuse angle, and a cross-sectional area of the second hole wall segment 3192 on a reference section (for example, a plane perpendicular to the reference plane in fig. 4) perpendicular to the plugging direction gradually increases along the plugging direction, that is, the second hole wall segment 3192 may be trumpet-shaped compared with the first hole wall segment 3191. Further, as shown in fig. 6 and 7, the sealing rubber plug 38 may include an insertion portion 381 that can be inserted into the plug receptacle 319. Wherein, the insertion portion 381 is provided with an annular protrusion 3811, and when the insertion portion 381 is plugged into the plug hole 319, as shown in fig. 3 and 4, the annular protrusion 3811 and the second hole wall segment 3192 form an elastic abutment. At this point, at least the annular protrusion 3811 will undergo some degree of elastic compression deformation to abut the second aperture wall segment 3192. By way of example, the deformation amount of the elastic compression deformation may be 0.1-0.3mm, and preferably may be 0.2mm, so as to meet the waterproof and dustproof requirements of the sealing rubber plug 38 on the housing 31 and the plugging and unplugging requirements thereof. So set up, sealing plug 38 not only can seal jack 319, in order to increase the waterproof and dustproof performance of casing assembly 30, but also can be in its opposite direction of plugging in the direction by second pore wall 3192 section backstop (because the contained angle that forms between it and first pore wall section 3191 is an obtuse angle, and expand gradually along the direction of plugging in and be the loudspeaker form in first pore wall section 3191 relatively), and then avoid sealing plug 38 to withdraw from jack 319 because of elastic recovery, also be that sealing plug 38 can be stopped by casing 31 after plugging in jack 319.

It should be noted that: after the insertion portion 381 is taken out from the insertion hole 319, the USB socket 34 is exposed through the insertion hole 319, so that the sound generating device 10 can perform functions of data transmission, charging and the like through the USB socket 34.

Illustratively, as shown in fig. 4, on the reference plane, the second aperture wall section forms an angle θ with the first aperture wall section; wherein theta is more than or equal to 155 degrees and less than 180 degrees. Preferably, 160 DEG-theta-170 deg. More preferably, θ is 166 °. So set up, can compromise sealed plug 38 to the waterproof dustproof demand of casing 31 and the stopping demand of casing 31 to sealed plug 31.

Further, the quantity of annular arch 3811 can be a plurality of, and a plurality of annular arch 3811 set up side by side at the interval in the direction of inserting of sealing plug 38, and at least one annular arch 3811 can form elastic abutment with second pore wall section 3192. Illustratively, two annular protrusions 3811 are disposed side by side on the insertion portion 381, wherein one annular protrusion 3811 is elastically abutted against the second hole wall segment 3192, and the other annular protrusion 3811 is elastically abutted against the first hole wall segment 3191. So set up to increase the waterproof dustproof of sealing plug 38 to casing 31.

As shown in fig. 5 to 6, the housing 31 (specifically, the accommodating chamber 313) may further have a mounting hole 320, and the mounting hole 320 is communicated with the accommodating chamber 318; the sealing plug 38 may also include a mounting portion 382 integrally connected with the insertion portion 381. Wherein, in conjunction with fig. 3, the fitting portion 382 may be inserted into the mounting hole 320 and fixed with the housing 31. By such arrangement, when the USB socket 34 is in a use state such as data transmission and charging, that is, after the insertion portion 381 is taken out from the insertion hole 319, the sealing rubber plug 38 can be hung on the housing 31 through the assembling portion 382, so as to prevent the sealing rubber plug 38 from completely separating from the housing 31 and falling out.

Further, as shown in fig. 6 and 7, the sealing rubber plug 38 may further include a connecting portion 383 connecting the insertion portion 381 and the mounting portion 382. A thinned structure 3831 is provided on the connecting portion 383, that is, the average thickness of the connecting portion 383 at the thinned structure 3831 is smaller than the average thickness of other portions; the thinned structure 3831 is located between the insertion portion 381 and the mounting portion 382, so that the insertion portion 381 can be bent with respect to the mounting portion 382 by the thinned structure 3831. This is provided to facilitate removal of the insertion portion 381 from the patch hole 319 by a user. As an example, the thinning structure 3831 may be located on the same side of the connection portion 383 as the insertion portion 381 and the mounting portion 382, so that after the sealing rubber plug 38 is plugged into the plug receptacle 319, the thinning structure 3831 is not visible, so as to increase the consistency of the sealing rubber plug 38 in the appearance structure.

As shown in fig. 6 and 7, the fitting portion 382 may be divided into a connecting section 3821, a stopping section 3822 and a guiding section 3823 which are integrally connected in sequence. The connecting section 3821 is connected to the connecting section 383, and the stopping section 3822 protrudes from the connecting section 3821 and the guiding section 3823. Further, the length of the connecting section 3821 may be approximately equal to the thickness of the housing 31 at the mounting hole 320, and the diameter of the connecting section 3821 may be slightly smaller than the diameter of the mounting hole 320. So set up for assembly portion 382 is mainly one-way plug into mounting hole 320, and after assembly portion 382 plugs into mounting hole 320, backstop section 3822 and connecting portion 383 are located the both sides that the casing 31 carried on the back respectively, in order to avoid assembly portion 382 to drop from mounting hole 320, and then make assembly portion 382 and casing 31 joint fixed. Further, the portion of the fitting portion 382 contacting the housing 31 may be coated with a glue, which may increase the reliability of the connection between the two, and may also increase the waterproof and dustproof performance of the housing 31 at the mounting hole 320. In other words, the fitting portion 382 can always maintain a relatively fixed assembling relationship with the housing 31 and extend from the accommodating cavity 318 to the outside of the housing 31. Accordingly, the mounting portion 382 may be a light-transmitting member, for example, made of polycarbonate or polyamide, and is disposed corresponding to the indicator light 35 to guide the light emitted from the indicator light 35 to the outside of the casing 31, so that the indicator light can indicate the situation that the sounding device 10 is charged and the electric quantity is insufficient. At this time, the indicator lamp 35 is housed in the housing chamber 318 and is not visible from the outside of the housing 31. With such an arrangement, compared with the structure that the indicator light 35 is exposed out of the housing 31 as shown in fig. 2, the housing 31 of the present embodiment may have one less through hole structure corresponding to the indicator light 35, which is beneficial to increase the waterproof and dustproof performance of the housing 31.

Further, the mounting portion 382 and the insertion portion 381 may be made of two different materials or the same material; the connecting portion 383 and the inserting portion 381 may be made of the same material. When the assembly portion 382 and the insertion portion 381 are made of two different materials, the light transmittance of the assembly portion 382 to light may be greater than that of the insertion portion 381 to light, so that the light emitted by the indicator light 35 is guided out of the housing 31 by the assembly portion 382 as much as possible, and the light guided by the assembly portion 382 is prevented from "leaking" to the insertion portion 381. Further, when the configuration portion 382 and the insertion portion 381 are made of the same material, a light blocking member (shown in the figure) may be further disposed between the configuration portion 382 and the insertion portion 381, and a light transmittance of the light blocking member to light is smaller than a light transmittance of the assembly portion 382 to light, so that light emitted from the indicator light 35 is guided to the outside of the housing 31 by the assembly portion 382 as much as possible, and further light guided by the assembly portion 382 is prevented from "leaking" to the insertion portion 381. As an example, the light blocking member may be disposed at the thinning structure 3831. Of course, the connecting portion 383 between the mounting portion 382 and the insertion portion 381 may be replaced with the light blocking member described above.

It should be noted that: the guide section 3823 may be mainly used during the assembly of the sealing rubber plug 38 with the housing 31, for example, the guide section 3823 is first passed through the mounting hole 320, and then a force is applied to the guide section 3823 to pull the stopper section 3822 through the mounting hole 320. Therefore, the guiding portion 3823 can be cut off after the sealing rubber plug 38 is assembled with the housing 31, so that the volume of the accommodating chamber 318 can be saved for disposing other devices. Based on this, the indicator light 35 can also face and contact the end of the stopping section 3822 away from the connecting section 3821, so that the distance of the light emitted by the indicator light 35 to the outside of the housing 31 can be shortened, and the loss of the light can be reduced.

Referring to fig. 3 and 5 again, a groove 321 may be further formed on the housing 31 (specifically, the accommodating chamber 313), and the plug hole 319 and the mounting hole 320 are communicated with the bottom of the groove 321. Specifically, in the plugging direction of the sealing rubber plug 38, the groove 321 is located on a side of the first hole wall segment 3191 facing away from the second hole wall segment 3192. So configured, during the process of inserting the inserting portion 381 into the inserting hole 319, the connecting portion 383 is stopped by the bottom of the groove 321, thereby preventing the sealing rubber plug 38 from "over-plugging". Further, after the insertion portion 381 is inserted into the plug hole 319, the connection portion 383 can be received in the groove 321. At this time, the connection part 383 may be flush with the accommodating chamber 313.

Referring to fig. 8 and 9 together, fig. 8 is a schematic structural view of another embodiment of the sealing rubber plug in fig. 3, and fig. 9 is a schematic structural view of another embodiment of the sealing rubber plug in fig. 3.

Based on the above description, during the process of removing the insertion portion 381 from the plug hole 319 after the sealing rubber plug 38 is assembled with the housing 31, the insertion portion 381 may be bent with respect to the mounting portion 382 by the thinning structure 3831, that is, the movement locus of the free end of the insertion portion 381 away from the corner of the mounting portion 382 is an arc with respect to the mounting portion 382. In doing so, the free end of the insertion portion 381 away from the corner of the mounting portion 382 may interfere structurally with the housing 31, especially in situations where the length of the insertion portion 381 (i.e., the depth of insertion of the insertion portion 381 into the receptacle 319) is large. Accordingly, during insertion of the insertion portion 381 into the jack 319 by a user, the free end of the insertion portion 381 away from the corner of the mounting portion 382 may also interfere structurally with the housing 31. The former is characterized by difficulty in pulling out, and the latter is characterized by difficulty in inserting in. In contrast, as shown in fig. 8 and 9, the free end of the insertion portion 381 may be provided with an escape structure 3812. The avoiding structure 3812 is used to reduce interference between a corner of the free end of the insertion portion 381 away from the mounting portion 382 and the housing 31 when the insertion portion 381 is plugged into the jack 319 or the insertion portion 381 is taken out of the jack 319.

In some embodiments, as shown in fig. 8, the avoidance structure 3812 can be a chamfer. Wherein the chamfer can be provided at a corner of the free end of the insertion portion 381 distal from the mounting portion 382.

In other embodiments, as shown in fig. 9, the avoidance structure 3812 can be at least one slot. Wherein the cutting groove may divide the free end of the insertion part 381 into at least two parts in the circumferential direction.

It should be noted that: as shown in fig. 8 and 9, the avoiding structure 3812 does not damage the annular protrusion 3811 as much as possible, so as to ensure the structural integrity of the annular protrusion 3811, and further ensure the waterproof and dustproof performance of the sealing rubber plug 38 on the housing 31. Further, the avoiding structure 3812 may also be disposed at a corner of the free end of the insertion portion 381 close to the assembling portion 382, so as to facilitate a user to plug the insertion portion 381 into the patch hole 319 or take the insertion portion 381 out of the patch hole 319 as much as possible on the premise of ensuring the waterproof and dustproof effects of the sealing rubber plug 38 on the housing 31.

Further, as shown in fig. 8 and 9, a starting position 3832 may be further disposed at an end of the connecting portion 383 facing away from the mounting portion 382. The average thickness of the connecting portion 383 at the starting position 3832 is smaller than the average thickness of other portions, so that the user can easily "pull out" the insertion portion 381 from the jack 319. As an example, the origin 3832 may be located on the same side of the connection portion 383 as the insertion portion 381 and the mounting portion 382, so that the origin 3832 is not visible after the sealing rubber plug 38 is plugged into the plug hole 319, so as to increase the structural consistency of the sealing rubber plug 38.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A shell component applied to a sound generating device is characterized in that the shell component comprises a shell and a sealing rubber plug, the shell is provided with a jack, the sealing rubber plug is arranged to be plugged into and seal the jack, the hole wall of the patch hole is defined as a first hole wall section and a second hole wall section which are connected in sequence along the plugging direction of the sealing rubber plug, on a reference plane parallel to the plugging direction, an included angle formed between the second hole wall section and the first hole wall section is an obtuse angle, and the cross-sectional area of the second aperture wall section in a reference section perpendicular to the plugging direction gradually increases along the plugging direction, the sealing rubber plug comprises an inserting part which can be plugged into the jack, the inserting part is provided with an annular bulge, when the inserting part is plugged into the jack, the annular protrusion and the second hole wall section form elastic abutting connection.

2. The housing assembly of claim 1, wherein, in the reference plane, the second aperture wall section forms an angle θ with the first aperture wall section; wherein theta is more than or equal to 155 degrees and less than 180 degrees.

3. The shell assembly as claimed in claim 1, wherein the shell further comprises a mounting hole, the sealing rubber plug further comprises a mounting portion integrally connected to the insertion portion, and the mounting portion is inserted into the mounting hole and fixed to the shell.

4. The housing assembly of claim 3, wherein the housing is configured to form a receiving cavity, the plug jack and the mounting hole are respectively communicated with the receiving cavity, the housing assembly further comprises a USB socket disposed in the receiving cavity, the USB socket is disposed corresponding to the plug jack, and after the insertion portion is removed from the plug jack, the USB socket is exposed through the plug jack.

5. The housing assembly of claim 4, further comprising an indicator disposed in the receiving cavity, wherein the mounting portion is a light-transmitting member and is disposed corresponding to the indicator to guide light emitted from the indicator to the outside of the housing.

6. A housing assembly according to claim 3, wherein the free end of the insertion part is provided with an avoiding structure for reducing interference between a corner of the free end of the insertion part remote from the mounting part and the housing during insertion into the jack or removal from the jack.

7. The housing assembly of claim 6 wherein the relief structure is a chamfer disposed at a corner of the free end of the insertion portion distal from the mounting portion; or, the avoiding structure is at least one cutting groove which divides the free end of the inserting part into at least two parts along the circumferential direction.

8. The housing assembly according to claim 3, wherein the sealing rubber plug further comprises a connecting portion connecting the insertion portion and the assembling portion, the connecting portion is provided with a thinning structure, the thinning structure is located between the insertion portion and the assembling portion, and the insertion portion can be bent relative to the assembling portion through the thinning structure.

9. The housing assembly of claim 8, wherein the housing further comprises a groove, the plug hole and the mounting hole are in communication with the bottom of the groove, and the connecting portion is stopped by the bottom of the groove during the insertion of the insertion portion into the plug hole.

10. A sound generating device, comprising a movement and a housing assembly as claimed in any one of claims 1 to 9, wherein the movement is fixed to the housing.

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