Shell and sound box

Abstract

The shell is used for fixing a loudspeaker, the outer wall of the shell is provided with a plurality of installation grooves used for being connected with first fasteners respectively, the shell comprises a shell body and a limiting module, the shell body is provided with a concave cavity and a through hole, the concave cavity is arranged on the shell body, the through hole penetrates through the inner wall of the concave cavity and extends to the outer wall of the shell body, and the limiting module is arranged on the shell body. The plurality of mounting grooves are annularly formed outside the through hole; the limiting module is arranged on the inner wall of the concave cavity in a protruding mode and corresponds to the installation groove, a limiting hole is formed in the limiting module in a penetrating mode, one end of the limiting hole is communicated with the concave cavity, the other end of the limiting hole is communicated with the through hole, and when one end of the loudspeaker is fixed to the installation groove through the first fastener, the other end of the loudspeaker sequentially penetrates through the through hole and the limiting hole and then is contained in the concave cavity. Under the condition that the function and the appearance of the shell are not affected, the design of the screw column is optimized, a large inclined top on the inner side of a mold is omitted, and the mold cost is reduced; and cooling water can be fully distributed in the mold, so that the molding period of the shell is shortened, and the productivity is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of speaker structures, and particularly relates to a housing and a speaker. Background Art

[0002] A speaker is the terminal of the entire audio system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important part of the audio system and is responsible for converting electrical signals into sound signals for people's ears to directly listen to. As Figures 1 to 3 shown, in order to fix the speaker on its housing 10, four internal thread grooves 11 are provided on the outer wall of the housing 10. At the same time, four screw posts 12 are correspondingly added on the inner wall of the housing 10 to enhance the strength of the internal thread grooves 11. Thus, one end of the speaker is installed on the outer wall of the housing 10 through the cooperation of screws and the internal thread grooves 11. The other end of the speaker passes through the through hole 13 of the housing 10 and is located inside the housing 10. The internal thread groove 11 is a circular groove body with internal threads.

[0003] However, these screw posts 12 are undercuts. In order for the mold 20 for producing the housing 10 to be able to form each screw post 12, a lifter 21 needs to be made inside the mold 20. This will cause the cooling water channels not to be able to run on the inner side of the rear mold of the mold 20, increasing the molding cycle of the housing 10 product, thus affecting production capacity. In addition, with the addition of the lifter 21 inside the mold 20, the cost of the mold 20 will also increase. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a housing and a speaker to solve the technical problem that in order to fix the speaker inside its housing, four screw posts are added on the inner wall of the housing. These screw posts are undercuts. In order for the mold for producing the housing to be able to form each screw post, a lifter needs to be made inside the mold, which will cause the cooling water channels not to be able to run on the inner side of the rear mold of the mold, increasing the molding cycle of the housing product, thus affecting production capacity. In addition, with the addition of the lifter inside the mold, the cost of the mold will also increase.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a housing for fixing a speaker. A plurality of mounting grooves respectively used for connecting with first fasteners are provided on the outer wall of the housing. The housing includes:

[0007] A housing body having a concave cavity and a through hole. The concave cavity is provided on the housing body. The through hole extends through from the inner wall of the concave cavity to the outer wall of the housing body. A plurality of the mounting grooves are annularly arranged outside the through hole;

[0008] The limiting block is convexly provided on the inner wall of the concave cavity and is correspondingly arranged with the installation groove. The limiting block is provided with a limiting hole penetrating therethrough. One end of the limiting hole communicates with the concave cavity, and the other end communicates with the through hole. When one end of the horn is fixed to the installation groove by the first fastener, the other end of the horn will sequentially pass through the through hole and the limiting hole and then be received in the concave cavity.

[0009] Further, the through hole includes a first positioning hole and a second positioning hole communicating with the first positioning hole. The first positioning hole is of a circular structure, and the second positioning hole is of a square structure. The first positioning hole and the second positioning hole are both penetratingly provided on the side wall of the housing. The limiting hole and the first positioning hole are coaxially arranged, and the inner side walls of the limiting hole and the first positioning hole are flush with each other.

[0010] Further, the limiting block includes a limiting plate, a first limiting platform, and a second limiting platform. The limiting plate is convexly provided on the inner wall of the concave cavity and is located on one side outside the first positioning hole. The first limiting platform and the second limiting platform are both convexly provided on the inner wall of the concave cavity and are both located on the other side outside the first positioning hole. And the second positioning hole is located between the first limiting platform and the second limiting platform. The limiting plate is provided with a first arc surface, the first limiting platform is provided with a second arc surface, and the second limiting platform is provided with a third arc surface. The first arc surface, the second arc surface, and the third arc surface form the limiting hole.

[0011] Further, the distance between the first limiting platform and the limiting plate is equal to the distance between the second limiting platform and the limiting plate.

[0012] Further, the housing further includes a first positioning block and a second positioning block for abutting against the cover plate. The housing includes a bottom plate and a circular side plate convexly provided on the bottom plate. The through hole penetrates through the circular side plate. The limiting plate, the first limiting platform, and the second limiting platform are all convexly provided on the circular side plate. And the limiting plate and the second limiting platform are both connected to the bottom plate. The first positioning block is convexly provided on the surface of the first limiting platform away from the second limiting platform, and the second positioning block is convexly provided on the surface of the limiting plate away from the bottom plate.

[0013] Further, the installation groove penetrates through the housing from one side of the outer wall of the housing and extends concavely toward the middle of the limiting block.

[0014] Further, the housing further has a plurality of glue scooping grooves. The glue scooping grooves penetrate through the housing from one side of the outer wall of the housing and extend concavely toward the middle of the limiting block.

[0015] Further, the housing is also provided with a ventilation opening for connecting with an air duct, and the ventilation opening communicates with the concave cavity.

[0016] Further, the outer shell further includes a plurality of struts convexly provided on the bottom wall of the concave cavity, and the outer shell further has a plurality of through holes for the second fasteners to pass through, and the through holes penetrate through the housing and the struts in sequence from the outer wall of the housing.

[0017] The present utility model also provides a speaker, including the outer shell as described above.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model uses limit blocks to replace the traditional screw posts. The housing in the outer shell has a concave cavity and through holes extending from the inner wall of the concave cavity to the outer wall of the housing. A plurality of installation grooves are provided on the outer wall of the outer shell. The limit blocks are convexly provided on the inner wall of the concave cavity. One end of the limit hole of the limit block communicates with the concave cavity, and the other end communicates with the through hole. One end of the speaker is fixed to the installation groove through the first fastener, and the other end is received in the concave cavity after passing through the through hole and the limit hole in sequence. In this way, without affecting the function and appearance of the outer shell, the design of the screw posts is optimized, so that the mold for producing the outer shell can cancel the large inclined ejector on the inner side of the mold, optimize the mold structure, and reduce the mold cost; the cooling water in the mold can be arranged sufficiently, thereby reducing the molding cycle of the outer shell and increasing the production capacity of the outer shell. Description of the Drawings

[0020] Figure 1 Structural schematic of a traditional chassis Figure 1 ;

[0021] Figure 2 Structural schematic of a traditional chassis Figure 2 ;

[0022] Figure 3 Partial structural schematic of a traditional chassis during molding in a mold;

[0023] Figure 4 Structural schematic of the outer shell provided by the embodiment of the present utility model Figure 1 ;

[0024] Figure 5 For Figure 4 Partial enlarged schematic at position A in

[0025] Figure 6 Structural schematic of the outer shell provided by the embodiment of the present utility model Figure 2 ;

[0026] Figure 7 Structural schematic of the outer shell provided by the embodiment of the present utility modelFigure 3 ;

[0027] Figure 8 Partial structural schematic diagram of the housing provided by the embodiment of the present invention when it is molded in a mold;

[0028] Figure 9 Partial structural schematic diagram of the speaker provided by the embodiment of the present invention;

[0029] Figure 10 is Figure 9 exploded view of;

[0030] Figure 11 Partial structural schematic diagram of the speaker provided by the embodiment of the present invention after removing the cover plate.

[0031] In the figure:

[0032] 10, cabinet; 11, internal thread groove; 12, screw post; 13, through hole; 20, mold; 21, lifter; 22, slider mechanism; 30, housing; 31, mounting groove; 32, first positioning block; 33, second positioning block; 34, reinforcing rib; 35, degumming groove; 36, support pillar; 37, through hole; 40, speaker; 41, first through hole; 50, housing body; 51, concave cavity; 52, through hole; 521, first positioning hole; 522, second positioning hole; 53, bottom plate; 54, annular side plate; 55, ventilation opening; 60, limit block group; 61, limit hole; 62, limit plate; 621, first arc surface; 63, first limit platform; 64, second limit platform; 641, third arc surface; 70, cover plate; 80, air duct; 90, annular gasket; 91, second through hole. Specific embodiments

[0033] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0034] Please refer to Figures 2 to 8 and Figure 11 , the embodiment of the present invention discloses a housing 30 for fixing the speaker 40 in the speaker. A plurality of mounting grooves 31 for connecting with respective first fasteners are provided on the outer side wall of the housing 30.

[0035] The housing 30 includes a housing body 50 and a limiting block 60. The housing body 50 has a concave cavity 51 and a through hole 52. The concave cavity 51 is provided on the housing body 50, and the through hole 52 extends through from the inner wall of the concave cavity 51 to the outer wall of the housing body 50. The mounting groove 31 can be provided only on the outer wall of the housing body 50, and a plurality of mounting grooves 31 are arranged in a ring outside the through hole 52. The number of the mounting grooves 31 and the first fasteners is four each. The first fasteners can fix the speaker 40 to the housing 30 through the corresponding mounting grooves 31. The mounting groove 31 is the circular internal thread groove 11 in the background art.

[0036] The limiting block 60 protrudes from the inner wall of the concave cavity 51. The limiting block 60 is arranged corresponding to the mounting groove 31. The limiting block 60 is provided with a limiting hole 61 through it. One end of the limiting hole 61 communicates with the concave cavity 51, and the other end communicates with a part of the through hole 52. The other part of the through hole 52 directly communicates with the concave cavity 51. When one end of the speaker 40 is fixed to the mounting groove 31 by threading with the first fastener, the other end of the speaker 40 will pass through the through hole 52 and the limiting hole 61 in sequence and then be received in the concave cavity 51. Without affecting the function and appearance of the housing 30, the design of the screw post 12 is optimized. The limiting block 60 is used instead of the screw post 12. At this time, there is no undercut inside the housing 30, and it can be demolded normally. The mold 20 for producing the housing 30 can cancel the structure of the inner large angle lifter 21, optimize the structure of the mold 20, and reduce the cost of the mold 20.

[0037] In some embodiments, the mounting groove 31 penetrates through the housing body 50 from one side of the outer wall of the housing body 50 and extends concave towards the middle of the limiting block 60 to reduce the thickness of the housing body 50, facilitating the first fasteners to stably mount the speaker 40 on the mounting groove 31. Of course, the mounting groove 31 can also directly penetrate through the housing body 50 and the limiting block 60.

[0038] The through hole 52 includes a first positioning hole 521 and a second positioning hole 522 communicating with the first positioning hole 521. The first positioning hole 521 is a circular structure, and the first positioning hole 521 matches the outer diameter of the speaker 40. The second positioning hole 522 is a square structure. Both the first positioning hole 521 and the second positioning hole 522 are provided through the side wall of the housing body 50. The limiting hole 61 and the first positioning hole 521 are coaxially arranged, and the inner side walls of the limiting hole 61 and the first positioning hole 521 are flush with each other, so that the slider mechanism 22 in the mold 20 can directly withdraw from the housing 30 after the housing 30 is formed.

[0039] In this embodiment, the limiting block 60 includes a limiting plate 62, a first limiting platform 63, and a second limiting platform 64, as Figure 4As shown, the limiting plate 62 protrudes from the inner wall of the concave cavity 51 and is located on one side outside the first positioning hole 521 in the transverse direction. The first limiting platform 63 and the second limiting platform 64 both protrude from the inner wall of the concave cavity 51 and are both located on the other side outside the first positioning hole 521 in the transverse direction. And the second positioning hole 522 is located between the first limiting platform 63 and the second limiting platform 64. The first limiting platform 63 and the second limiting platform 64 are respectively located on both sides of the second positioning hole 522 in the longitudinal direction. The limiting plate 62 is provided with a first arc surface 621. The first limiting platform 63 is provided with a second arc surface. The second limiting platform 64 is provided with a third arc surface 641. The limiting plate 62, the first limiting platform 63 and the second limiting platform 64 are all spaced from each other. The limiting plate 62, the first limiting platform 63 and the second limiting platform 64 do not cover the through hole 52. The first arc surface 621, the second arc surface and the third arc surface 641 form the limiting hole 61. The limiting plate 62 corresponds to two of the mounting grooves 31. The first limiting platform 63 and the second limiting platform 64 correspond to the other two mounting grooves 31.

[0040] In some embodiments, the distance between the first limiting platform 63 and the limiting plate 62 is equal to the distance between the second limiting platform 64 and the limiting plate 62, so that the dimensions of some internal structures of the mold 20 can be consistent during the processing process, thereby reducing the production cost of the mold 20.

[0041] In some embodiments, the thicknesses of the limiting plate 62, the first limiting platform 63 and the second limiting platform 64 are all equal, so as to further reduce the production cost of the mold 20.

[0042] The housing 30 further includes a first positioning block 32 and a second positioning block 33. The housing 50 includes a bottom plate 53 and an annular side plate 54 protruding from the bottom plate 53. The annular side plate 54 is an overall annular structure. The through hole 52 penetrates through the annular side plate 54. The limiting plate 62, the first limiting platform 63 and the second limiting platform 64 all protrude from the annular side plate 54. And the limiting plate 62 and the second limiting platform 64 are both connected to the bottom plate 53. The first positioning block 32 protrudes from the surface of the first limiting platform 63 away from the second limiting platform 64. The second positioning block 33 protrudes from the surface of the limiting plate 62 away from the bottom plate 53. The first positioning block 32 and the second positioning block 33 are both used to abut against the cover plate 70 to limit the position of the cover plate 70 on the housing 30.

[0043] In some embodiments, the housing 30 further includes a plurality of reinforcing ribs 34. The reinforcing ribs 34 are located in the concave cavity 51. The reinforcing ribs 34 protrude from the annular side plate 54 to enhance the strength of the housing 50.

[0044] The outer shell 30 also has a plurality of glue scooping grooves 35 which penetrate from one side of the outer wall of the outer shell 30 through the housing 50 and extend in a concave manner towards the middle of the limit block 60. Glue scooping treatment is performed on the outside of the outer shell 30 to prevent the outer shell 30 from shrinking during the molding process.

[0045] The housing 50 is also provided with a ventilation opening 55 for connecting with the air duct 80. The ventilation opening 55 is communicated with the concave cavity 51, and the ventilation opening 55 and the through hole 52 are arranged at intervals. The air duct 80 can be directly fixed on the ventilation opening 55, or the air duct 80 can be fixed on the inner wall of the concave cavity 51 and communicated with the ventilation opening 55.

[0046] The outer shell 30 further includes a plurality of support columns 36 convexly arranged on the bottom wall of the concave cavity 51. The outer shell 30 also has a plurality of through holes 37 for the respective second fasteners to pass through. The through holes 37 penetrate through the housing 50 and the support columns 36 in sequence from the outer wall of the housing 50. The support columns 36 are used to support the cover plate 70, and the cover plate 70 can be fixed on the support columns 36 through the second fasteners.

[0047] Please further refer to Figures 4 to 6 、and Figures 9 to 11 . The present utility model also discloses a speaker, which includes a speaker 40, an annular gasket 90, a plurality of first fasteners, and the outer shell 30 as described above. The speaker 40 is provided with a plurality of first through holes 41, and the annular gasket 90 is provided with a plurality of second through holes 91. The first fasteners pass through the first through holes 41 and the second through holes 91 in sequence and then are connected to the mounting groove 31, thereby fixing the speaker 40 on the outer shell 30. The first fasteners are screws.

[0048] The speaker further includes a cover plate 70, an air duct 80, and a plurality of second fasteners. One end of the air duct 80 is clamped on the ventilation opening 55, and the other end is located in the concave cavity 51 to enhance the sound effect of the speaker. The cover plate 70 is provided with a plurality of threaded holes. The second fasteners pass through the through holes 37 of the outer shell 30 and are threadedly connected to the threaded holes. The cover plate 70 covers the concave cavity 51 and encloses a receiving space with the inner wall of the concave cavity 51. Other components of the speaker, such as a circuit board and a battery, can be installed in the receiving space. The second fasteners are screws.

[0049] In summary, the present utility model uses the limit block 60 to replace the traditional screw posts 12. The housing 50 in the outer shell 30 has a concave cavity 51 and through holes 52 that penetrate from the inner wall of the concave cavity 51 to the outer wall of the housing 50. A plurality of mounting grooves 31 are provided on the outer wall of the outer shell 30. The limit block 60 protrudes from the inner wall of the concave cavity 51. One end of the limit hole 61 of the limit block 60 communicates with the concave cavity 51, and the other end communicates with the through hole 52. One end of the speaker 40 is fixed to the mounting groove 31 by a first fastener, and the other end passes through the through hole 52 and the limit hole 61 in sequence and is received in the concave cavity 51. In this way, without affecting the function and appearance of the outer shell 30, the design of the screw posts 12 is optimized, so that the mold 20 for producing the outer shell 30 can cancel the inner large inclined ejector 21, optimize the structure of the mold 20, and reduce the cost of the mold 20; the cooling water in the mold 20 can be arranged sufficiently, thereby reducing the molding cycle of the outer shell 30 and increasing the production capacity of the outer shell 30.

[0050] The above embodiments are only the preferred embodiments of the present utility model and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A housing for fixing a speaker, wherein a plurality of mounting grooves for connecting with respective first fasteners are provided on an outer wall of the housing, and characterized in that, The housing includes: A housing body having a concave cavity and a through hole. The concave cavity is provided on the housing body, and the through hole extends through from the inner wall of the concave cavity to the outer wall of the housing body. A plurality of the mounting grooves are annularly arranged outside the through hole; A limiting block group protruding from the inner wall of the concave cavity and corresponding to the mounting grooves. The limiting block group is provided with a limiting hole. One end of the limiting hole communicates with the concave cavity, and the other end communicates with the through hole. When one end of the speaker is fixed to the mounting groove by the first fastener, the other end of the speaker will sequentially pass through the through hole and the limiting hole and then be received in the concave cavity.

2. The housing according to claim 1, wherein, The through hole includes a first positioning hole and a second positioning hole communicating with the first positioning hole. The first positioning hole is a circular structure, and the second positioning hole is a square structure. The first positioning hole and the second positioning hole are both provided through the side wall of the housing body. The limiting hole and the first positioning hole are coaxially arranged, and the inner side walls of the limiting hole and the first positioning hole are flush with each other.

3. The housing according to claim 2, characterized in that, The limiting block group includes a limiting plate, a first limiting platform, and a second limiting platform. The limiting plate protrudes from the inner wall of the concave cavity and is located on one side outside the first positioning hole. The first limiting platform and the second limiting platform both protrude from the inner wall of the concave cavity and are both located on the other side outside the first positioning hole. And the second positioning hole is located between the first limiting platform and the second limiting platform. The limiting plate is provided with a first arc surface, the first limiting platform is provided with a second arc surface, and the second limiting platform is provided with a third arc surface. The first arc surface, the second arc surface, and the third arc surface form the limiting hole.

4. The housing according to claim 3, characterized in that, The distance between the first limiting platform and the limiting plate is equal to the distance between the second limiting platform and the limiting plate.

5. The housing according to claim 3, wherein The housing further includes a first positioning block and a second positioning block for abutting against the cover plate. The housing body includes a bottom plate and an annular side plate protruding from the bottom plate. The through hole penetrates through the annular side plate. The limiting plate, the first limiting platform, and the second limiting platform all protrude from the annular side plate. And the limiting plate and the second limiting platform are both connected to the bottom plate. The first positioning block protrudes from the surface of the first limiting platform away from the second limiting platform, and the second positioning block protrudes from the surface of the limiting plate away from the bottom plate.

6. The housing according to claim 1, characterized in that, The mounting groove penetrates through the housing body from one side of the outer wall of the housing body and extends concavely toward the middle of the limiting block group.

7. The housing according to claim 1, characterized in that, The housing further has a plurality of glue scooping grooves that penetrate through the housing body from one side of the outer wall of the housing body and extend concavely toward the middle of the limiting block group.

8. The housing according to claim 1, characterized in that, The housing body is further provided with a ventilation port for connecting with an air duct, and the ventilation port communicates with the concave cavity.

9. The housing according to claim 1, wherein The housing further includes a plurality of struts protruding from the bottom wall of the concave cavity. The housing also has a plurality of through holes for the second fasteners to pass through. The through holes penetrate through the housing body and the struts in sequence from the outer wall of the housing body.

10. A speaker, characterized in that, Including the housing according to any one of claims 1-9.

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