CN210986356U - Intelligent sound box - Google Patents

Abstract

The embodiment of the application discloses intelligent sound box relates to product structure technical field. This intelligence audio amplifier includes the casing, is provided with mainboard, microphone and microphone board in the casing at least, and key-press support, the pickup mouth has been seted up on the surface of casing, and concrete implementation scheme is: the microphone also comprises a silica gel sleeve which is sleeved on the outer side of the microphone; the microphone is fixed on the microphone board; the inner side of the shell is provided with a convex rib which is used for sequentially abutting the key support, the microphone plate with the silica gel sleeve, the sleeved microphone and the silica gel sleeve at the pickup port in the first direction; wherein, the first direction is a direction parallel to the pickup opening; the microphone board is fixed on the inner side of the shell through the first fixing piece and the key support in the second direction; wherein the first direction is different from the second direction. This application embodiment can reduce the assembly degree of difficulty of first mounting to can reduce the mould design degree of difficulty of audio amplifier casing and the equipment degree of difficulty of audio amplifier.

Description

Intelligent sound box

Technical Field

The embodiment of the application relates to the technical field of product structures, in particular to a sealing structure technology.

Background

At present, the intelligent sound box is very high in popularity, small and attractive in appearance, and various functions are enriched so that the intelligent sound box can be accepted by users more easily.

The man-machine interaction based on voice is an important function of the intelligent sound box, so a microphone (Mic) is arranged in the intelligent sound box to collect voice signals input by a user.

If the voice signal is to be accurately identified, the voice signal is accurately collected on the premise, so that the requirement on the sealing performance of the microphone is higher in the signal collection link of the microphone. Poor sealing will interfere with the sound collection of the microphone.

The prior art adopts the mode that the screw fastening direction is on a parallel with the direction of the pickup opening to fix the microphone to the pickup opening to form sealing. This sealed implementation mode all has higher requirement to the mounted position and the direction of screw, can increase the mould design degree of difficulty of audio amplifier casing and the equipment degree of difficulty of audio amplifier.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an intelligent sound box to improve intelligent sound box's microphone seal structure, reduce the mould design degree of difficulty of audio amplifier casing and the equipment degree of difficulty of audio amplifier.

The embodiment of the application discloses intelligent audio amplifier, it includes the casing, be provided with mainboard, microphone and microphone board in the casing at least, key-press support, the pickup mouth has been seted up on the surface of casing, and the microphone is fixed on the microphone board, and this intelligent audio amplifier still includes:

the silica gel sleeve is sleeved on the outer side of the microphone;

the inner side of the shell is provided with a raised rib for sequentially abutting the key support, the microphone board, the sleeved microphone and the silicone sleeve at the pickup port in a first direction;

wherein the first direction is a direction parallel to the pickup opening;

the microphone board is fixed on the inner side of the shell through a first fixing piece and a key support in a second direction; wherein the first direction is different from the second direction.

The above embodiment has the following advantages or beneficial effects: through the microphone and the silica gel cover with key-press support, microphone board and suit, along the first direction butt between protruding muscle and pickup mouth, form first heavy sealed to fix the microphone board at the casing inboard along the second direction through key-press support with first mounting and form the second heavy sealed, thereby guarantee the leakproofness of microphone, stop the microphone pickup and taken place by the problem of disturbing. And, the installation direction through setting up first mounting is different with the first direction, has overcome the mounted position and the direction of first mounting and has required height, the problem that the mould design degree of difficulty and the equipment degree of difficulty of audio amplifier casing are big, and then has reached the assembly degree of difficulty that reduces first mounting and the design degree of difficulty of mould, improves the packaging efficiency, reduces the effect of cost.

Further, the second direction is perpendicular to the first direction.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: through setting up first direction and second direction perpendicular for the installation direction of first installed part turns to the direction of the user operation of being convenient for, thereby further reduces the assembly degree of difficulty of first mounting and the design degree of difficulty of mould, and further improves the packaging efficiency.

Furthermore, the number of the microphones and the silica gel sleeves is two, and the microphones and the silica gel sleeves are respectively arranged at two ends of the microphone board.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: through establishing two microphones at the both ends of microphone board respectively for two microphones can coordinate the work, and overall layout is reasonable moreover.

Further, the microphone board is inserted in the rear shell, and the protruding ribs are used for sequentially abutting the key support, the microphone board and the microphone and the silica gel sleeve of the suit on the first direction at the pickup opening.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: the microphone board is inserted into the rear shell, the key support is installed into the shell, the key support can play a role in pre-fixing the microphone board, and the assembly efficiency of the key support, the microphone board, the sleeved microphone and the silicone sleeve is improved.

Furthermore, the shell comprises a front shell and a rear shell, the longitudinal section of the rear shell is in a fold line shape, two edges of the fold line shape respectively correspond to the surface of the base and the surface of the panel, and an included angle between the surface of the base and the surface of the panel is an acute angle;

the mold stripping direction of the rear shell is consistent with the trend of the base surface.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: through setting up the demolding direction of back casing, can avoid producing the parting line on the outward appearance face of back casing to beautify the outward appearance, simultaneously, owing to need not improve outward appearance parting line through carrying out surface treatment, consequently, can reduce cost.

Furthermore, a main board mounting area is arranged on the inner side of the panel surface of the rear shell, and a mounting hole of a second fixing piece is formed in the main board mounting area in a molded mode; the mounting end face of the mounting hole is perpendicular to the mold stripping direction;

the number of the mounting holes is more than two, and the mounting end faces of at least two mounting holes are not overlapped;

the intelligent sound box further comprises an adapter, the main board is fixed to the adapter, the second fixing piece penetrates through the fixing hole of the adapter and is inserted into the mounting hole, and the end face of each fixing hole of the adapter is flush with the mounting end face of each mounting hole.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: install the mainboard to the panel face of back casing through the adaptor, be favorable to with mainboard and panel face parallel configuration, and then be favorable to reducing because the shared space in the back casing of mainboard equipment, the thickness of attenuate intelligent audio amplifier realizes the slimming of intelligent audio amplifier.

Further, the adaptor is of an integrated structure.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: by designing the adapter as an integrated structure, the number of the adapters can be reduced, and therefore, the production cost and the assembly cost can be reduced.

Furthermore, a concave area is arranged in the adapter piece and used for accommodating, assembling and fixing the main board.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: through the depressed area with the mainboard setting at the adaptor, can reduce the perpendicular distance between mainboard and the panel face, and then reduce the shared space of mainboard installation to the inboard space of casing behind the rational utilization.

Furthermore, the main board mounting area is rectangular, and the number of the mounting holes is four, and the mounting holes are respectively arranged at four corners of the main board mounting area;

the adapter is rectangular, the number of the fixing holes is four, the fixing holes are respectively formed in four corners of the adapter and correspond to the positions of the mounting holes;

the recessed area is located in a central region of the adapter.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: the mainboard is fixed in the central area of the adapter through the four fixing pieces arranged at the four corners, so that the mainboard and the adapter are firmly fixed, and the mainboard and the adapter are prevented from sliding relatively.

Further, the first fixing piece and the second fixing piece are screws.

Accordingly, the above-described embodiments have the following advantages or advantageous effects: low cost and high fixing quality.

Other effects of the above-described alternative will be described below with reference to specific embodiments.

Drawings

The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

fig. 1 is an exploded view of an intelligent sound box provided in an embodiment of the present application;

FIG. 2 is an exploded view of the microphone seal in the smart sound box of FIG. 1;

FIG. 3 is a partial view of the microphone seal of the smart speaker of FIG. 1;

fig. 4 is an exploded view of the smart sound box of fig. 1 at a motherboard adapter;

FIG. 5 is a partial view of the smart sound box of FIG. 1 assembled at a motherboard adapter;

fig. 6 is a longitudinal view of a rear housing of the smart sound box provided in an embodiment of the present application;

fig. 7 is a partial view of a rear housing of a smart sound box provided in an embodiment of the present application;

fig. 8 is a partial cross-sectional view of an adapter assembly of a smart sound box according to an embodiment of the present application;

fig. 9 is a cross-sectional view of a fixing hole of an adapter of a smart sound box according to an embodiment of the present application.

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Fig. 1 is an exploded view of an intelligent sound box according to an embodiment of the present application. Fig. 2 is an exploded view of the microphone seal in the smart sound box of fig. 1. Fig. 3 is a partial view of the microphone seal of the smart speaker of fig. 1. Referring to fig. 1-3, the smart sound box includes a housing, at least a main board 21, a microphone and a microphone board 31 are disposed in the housing, and a sound pickup opening 121 is disposed on a surface of the housing. This intelligent sound box still includes:

the silica gel sleeve 32 is sleeved on the outer side of the microphone;

the inner side of the shell is provided with a convex rib 122 for sequentially abutting the key support 34, the microphone board 31 and the sleeved microphone and silicon rubber sleeve 32 at the corresponding position of the sound pickup opening 121 in the first direction X1; wherein, the first direction X1 is a direction parallel to the sound pickup opening 121;

the microphone board 31 is fixed inside the housing by the first fixing member 33 through the key holder 34 in the second direction X2; the first direction X1 is different from the second direction X2.

Wherein, be provided with the accommodation space who holds various components and parts in the casing, all kinds of components and parts are installed mostly in this accommodation space. For example, the main board 21, the microphone, and the microphone board 31 are all mounted in the housing.

The microphone board 31 has a control circuit thereon, and the control circuit is electrically connected to the microphone. The microphone is used for receiving sound under the control of the control circuit and collecting voice information sent by a user, so that the user can perform voice interaction with the intelligent sound box. The silica gel cover 32 can play a certain sealing effect and a certain protection effect on the microphone.

Specifically, the key holder 34, the microphone board 31, and the microphone and the silicone sleeve 32 which are sleeved together abut against each other between the protruding rib 122 and the sound pickup opening 121, so that the above components can be fixed inside the casing, and the first resealing of the microphone can be realized by relying on the extrusion force of the protruding rib of the casing on the key holder. Meanwhile, the microphone board 31 is fixed on the inner side of the shell through the first fixing piece 33 through the key support 34, so that the connection between the microphone board 31 and the shell can be enhanced, the microphone board 31 can be pressed towards the shell under the action of the first fixing piece 33, and the microphone board 31 is abutted to the sleeved microphone and the silicone sleeve 32 more tightly to form second resealing of the microphone.

Specifically, the process of assembling the key holder 34, the microphone board 31, and the nested microphone and silicone sleeve 32 in the housing may be as follows: step one, the microphone board 31 sleeved with the silica gel sleeve 32 is sequentially abutted against the sound pickup opening 121, and the key support 34 is placed behind the microphone board, so that the key support is positioned between the microphone board and the convex rib 122. Step two, the first fixing member 33 is driven along the second direction X2 to fix the microphone board 31 inside the housing.

It can be understood that if the first fixing member 33 is driven in the first direction X1, obviously, the housing will obstruct the user from driving the first fixing member 33, making the driving of the first fixing member 33 difficult and inefficient. In addition, the housing should be provided with a fitting hole 125 which is matched with the first fixing member 33, and a mounting end surface of the fitting hole 125 is perpendicular to the first direction X1 and is not parallel to a mounting end surface of a mounting hole on the housing to be mentioned later, which increases the difficulty of designing a mold for the housing. However, in the embodiment of the present application, referring to fig. 2 and fig. 3, the workpiece striking direction of the first fixing member 33 is different from the first direction X1, so that the problem that the casing hinders the user to perform the workpiece striking operation of the first fixing member 33 can be solved, the workpiece striking difficulty of the first fixing member 33 is reduced, the workpiece striking time of the first fixing member 33 is shortened, the assembling efficiency is improved, and the assembling cost is reduced. Meanwhile, because the piece beating direction of the first fixing piece 33 is different from the first direction X1, an included angle is formed between the installation end surface of the fitting hole 125 used for matching the first fixing piece 33 on the housing and the first direction X1, so that the installation end surface of the fitting hole 125 is parallel to the installation end surface of the installation hole on the housing to be mentioned later, and the design difficulty of the housing mold is further reduced.

According to the technical scheme of the embodiment of the application, the key support 34, the microphone plate 31 and the microphone and the silicon rubber sleeve 32 are sleeved to abut against the space between the protruding rib 122 and the pickup opening 121 along the first direction X1 to form a first reseal, and the microphone plate 31 is fixed on the inner side of the shell along the second direction X2 by the first fixing piece 33 through the key support 34 to form a second reseal, so that the sealing performance of the microphone is guaranteed, and the problem that the pickup of the microphone is interfered is avoided. Moreover, the installation direction of the first fixing piece 33 is different from the first direction X1, so that the problems that the requirement on the installation position and the direction of the first fixing piece 33 is high, and the design difficulty and the assembly difficulty of the mould of the sound box shell are high are solved, the assembly difficulty of the first fixing piece 33 and the design difficulty of the mould are reduced, the assembly efficiency is improved, and the cost is reduced.

It should be noted that, with continued reference to fig. 1, in order to make the smart sound box operate normally, the smart sound box may further include: the button 35, the connection line 36 between the microphone board and the main board, the camera 41, the antenna 42, the cavity 43, the DC (direct current) board 44, the connection line 45 between the DC board and the main board, the display 46, and other components known to those skilled in the art, which are not limited in this embodiment of the present application.

On the basis of the above technical solution, with continuing reference to fig. 2 and fig. 3, optionally, the second direction X2 is perpendicular to the first direction X1.

It can be understood that, when the included angle between the first direction X1 and the second direction X2 is larger (greater than 0 ° and less than or equal to 90 °), the degree of the obstruction of the casing to the operation of the first fixing member 33 for striking is smaller, and when the first direction X1 is perpendicular to the second direction X2, the installation direction of the first mounting member can be turned to the direction most convenient for the user to operate, so that the assembly difficulty of the first fixing member 33 is reduced to the maximum extent, and the assembly efficiency is improved.

On the basis of the above technical solution, with continued reference to fig. 2 and fig. 3, optionally, two microphones and two silicone sleeves 32 are respectively disposed at two ends of the microphone board 31.

The advantage of this arrangement is that the two microphones can work in coordination and the overall layout is reasonable.

Based on the above technical solution, with continued reference to fig. 2 and 3, optionally, the microphone board 31 is inserted into the rear case 12, and the protruding rib 122 is used for sequentially abutting the key holder 34, the microphone board 31, and the nested microphone and silicone sleeve 32 at the sound pickup opening 121 in the first direction X1.

Specifically, the key support 34 is disposed in the casing, a key hole groove is disposed on the casing, the key 35 disposed outside the casing passes through the key hole groove to contact with the key connector on the microphone board 31, and the key support 34 supports against the microphone board 31, thereby realizing a key control function.

It will be appreciated that, for aesthetic reasons, the microphone opening 121 and the key slot may be disposed in a concentrated manner in a certain area of the housing, and accordingly, the microphone board 31 may be disposed adjacent to the key holder 34 inside the housing. In this application, through pegging graft microphone board 31 in back casing 12, back casing 12 is packed into afterwards to key-press support 34, and key-press support 34 can play microphone board 31 fixed action in advance, is favorable to promoting key-press support 34, microphone board 31 and the microphone of suit and the assembly efficiency of silica gel cover 32.

Fig. 4 is an exploded view of the smart speaker of fig. 1 at a motherboard adapter. Fig. 5 is a partial view of the smart sound box of fig. 1 assembled at the motherboard adapter. Fig. 6 is a longitudinal view of a rear housing of the smart sound box provided in the embodiment of the present application. Referring to fig. 4-6, the casing includes a front casing 11 and a rear casing 12, the longitudinal section of the rear casing 12 is a zigzag, two edges of the zigzag respectively correspond to the surface of the base and the surface of the panel, and an included angle a between the surface of the base and the surface of the panel is an acute angle;

the demolding direction of the rear case 12 coincides with the trend of the base surface. The tendency to coincide is that the mold ejection direction is maintained in a substantially parallel relationship with the base surface, for example, the mold ejection direction is maintained at a small draft angle, for example, within 3 degrees, with the base surface.

For example, the long side L1 in a zigzag shape may be arranged to correspond to the panel surface, and the short side L2 in a zigzag shape may be arranged to correspond to the base surface, as shown in fig. 4 and 6, but the present invention is not limited thereto, and those skilled in the art can arrange the long side L in accordance with the actual situation.

Fig. 7 is a partial view of the rear case of the smart speaker according to the embodiment of the present invention, referring to fig. 7, it can be understood that the rear case 12 can be manufactured only by generating the parting line L at the a region position if the demolding direction of the rear case 12 is not in conformity with the trend of the base surface, the outer surface of the case is not beautiful due to the parting line L, and in addition, when the parting line L is curved due to a process or the like, the parting line L needs to be improved by performing a surface treatment, resulting in an increase in cost.

However, in the embodiment of the present application, by setting the mold-releasing direction of the rear case 12 to be consistent with the base surface, the mold-separating line L is prevented from being generated on the outer surface of the rear case 12 to beautify the outer appearance, and at the same time, since the outer surface-treating is not required to improve the outer surface-separating line L, the cost can be reduced.

Fig. 8 is a partial sectional view of an assembled adaptor of the smart sound box according to an embodiment of the present application. Fig. 9 is a cross-sectional view of a fixing hole of an adapter of a smart sound box according to an embodiment of the present application. On the basis of the above technical solution, with continued reference to fig. 4, fig. 8 and fig. 9, optionally, a main board installation area 123 is disposed on the inner side of the panel surface of the rear housing 12, and an installation hole 124 of the second fixing member 23 is formed in the main board installation area 123 by a die; the mounting end face of the mounting hole 124 is perpendicular to the demolding direction;

the number of the mounting holes 124 is more than two, and the mounting end faces of at least two mounting holes 124 are not overlapped;

the smart sound box further comprises an adapter 22, the main board 21 is fixed to the adapter 22, the second fixing member 23 penetrates through the fixing hole 221 of the adapter 22 and is inserted into the mounting hole 124, and the end face of each fixing hole 221 of the adapter 22 is flush with and matched with the mounting end face of each mounting hole 124.

It will be appreciated that the mounting end faces of the mounting holes 124 are perpendicular to the ejection direction. Since the included angle a between the panel surface and the base surface is an acute angle, i.e., the panel surface and the base surface are not perpendicular, an included angle is formed between the mounting end surface of the mounting hole 124 and the panel surface, in other words, the mounting end surface of the mounting hole 124 is not parallel to the panel surface. Under this condition, if directly install mainboard 21 on casing 12 behind through second mounting 23, then mainboard 21 place plane and panel place plane between will have certain contained angle, so, will lead to mainboard 21 to install shared space great, be unfavorable for the accommodation space of rational utilization back casing 12.

However, in the embodiment of the present application, the main board 21 is mounted to the panel surface of the rear housing 12 through the adaptor 22, as shown in fig. 8 and 9, the end surface of the fixing hole 221 of the adaptor 22 has a height difference D, and it can be said that the depth of the fixing hole 221 has a height difference D, so that when the adaptor 22 is fixed on the main board mounting area 123 of the rear housing 12, the plane of the adaptor 22 is not perpendicular to the base surface, and when the height difference D is properly set, the plane of the adaptor 22 can be parallel to the panel surface. It can be seen that through setting up adaptor 22, be favorable to with mainboard 21 and panel face parallel configuration, and then be favorable to reducing because the shared space in rear shell 12 of mainboard 21 equipment, the thinness of attenuate intelligent audio amplifier realizes the slimming of intelligent audio amplifier.

Specifically, the material of the adaptor 22 may be metal, plastic, or other materials known to those skilled in the art. Preferably, the material of the adaptor 22 is metal, so that the adaptor 22 can be reused as a heat sink for dissipating heat from the motherboard 21, thereby reducing the product cost and the assembly cost.

On the basis of the above technical solution, the adaptor 22 is optionally of an integrated structure.

This has the advantage that the number of adaptors 22 can be reduced, which reduces the production and assembly costs.

On the basis of the above technical solution, optionally, a recessed area 222 is provided in the adaptor 22 for accommodating and assembling the fixed main board 21.

Specifically, as will be understood with respect to the recessed area 222, when the interposer 22 is assembled to the motherboard mounting area 123 of the rear housing 12, it can be seen that the recessed area 222 is recessed toward a direction close to the motherboard mounting area 123.

The advantage that sets up like this lies in, can reduce the perpendicular distance between mainboard 21 and the panel face, and then reduces the shared space of mainboard 21 installation to the space in the reasonable utilization back casing 12.

On the basis of the above technical solution, optionally, the main board installation area 123 is rectangular, and the number of the installation holes 124 is four, and the installation holes are respectively arranged at four corners of the main board installation area 123;

the adapter 22 is rectangular, the number of the fixing holes 221 is four, the fixing holes are respectively formed in four corners of the adapter 22 and correspond to the positions of the mounting holes 124;

the recessed region 222 is located in a central region of the interposer 22.

This has the advantage of providing a secure attachment between the motherboard 21 and the adapter 22, and avoiding relative sliding between the motherboard 21 and the adapter 22.

On the basis of the above technical solution, the first fixing member 33 and the second fixing member 23 are screws.

The advantage of this arrangement is that it is low cost and has a high fastening quality.

The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides an intelligent sound box, includes the casing, be provided with mainboard, microphone and microphone board in the casing at least, key-press support, the pickup mouth has been seted up on the surface of casing, its characterized in that:

the microphone also comprises a silica gel sleeve which is sleeved on the outer side of the microphone; the microphone is fixed on the microphone board;

the inner side of the shell is provided with a raised rib for sequentially abutting the key support, the microphone board, the sleeved microphone and the silicone sleeve at the pickup port in a first direction; wherein the first direction is a direction parallel to the pickup opening;

the microphone board is fixed on the inner side of the shell through a first fixing piece and a key support in a second direction; wherein the first direction is different from the second direction.

2. The smart sound box of claim 1, wherein the second direction is perpendicular to the first direction.

3. The smart sound box according to claim 1, wherein the number of the microphones and the silicone sleeve is two, and the two microphones and the silicone sleeve are respectively arranged at two ends of the microphone board.

4. The smart sound box according to claim 1, wherein the microphone board is inserted into the rear housing, and the protruding rib is used to sequentially abut the key holder, the microphone board, and the microphone and the silicone sleeve of the kit at the sound pickup opening in a first direction.

5. The smart sound box of claim 1, wherein:

the shell comprises a front shell and a rear shell, the longitudinal section of the rear shell is in a fold line shape, two edges of the fold line shape respectively correspond to a base surface and a panel surface, and an included angle between the base surface and the panel surface is an acute angle;

the mold stripping direction of the rear shell is consistent with the trend of the base surface.

6. The smart sound box of claim 5, wherein:

a main board mounting area is arranged on the inner side of the panel surface of the rear shell, and a mounting hole of a second fixing piece is formed in the main board mounting area in a die-casting mode; the mounting end face of the mounting hole is perpendicular to the mold stripping direction;

the number of the mounting holes is more than two, and the mounting end faces of at least two mounting holes are not overlapped;

the intelligent sound box further comprises an adapter, the main board is fixed to the adapter, the second fixing piece penetrates through the fixing hole of the adapter and is inserted into the mounting hole, and the end face of each fixing hole of the adapter is flush with the mounting end face of each mounting hole.

7. The smart sound box of claim 6, wherein: the adapter is of an integrated structure.

8. The smart sound box of claim 7, wherein: a concave area is arranged in the adapter piece and used for containing, assembling and fixing the mainboard.

9. The smart sound box of claim 8, wherein:

the main board mounting area is rectangular, and the number of the mounting holes is four, and the mounting holes are respectively arranged at four corners of the main board mounting area;

the adapter is rectangular, the number of the fixing holes is four, the fixing holes are respectively formed in four corners of the adapter and correspond to the positions of the mounting holes;

the recessed area is located in a central region of the adapter.

10. The smart sound box of claim 6, wherein the first and second fixtures are screws.

Images