CN112104935A - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN112104935A CN112104935A CN202011055712.5A CN202011055712A CN112104935A CN 112104935 A CN112104935 A CN 112104935A CN 202011055712 A CN202011055712 A CN 202011055712A CN 112104935 A CN112104935 A CN 112104935A
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- Prior art keywords
- hole
- hole portion
- metal bottom
- basin frame
- shape
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 239000002184 metal Substances 0.000 claims abstract description 82
- 238000001746 injection moulding Methods 0.000 claims abstract description 19
- 230000006978 adaptation Effects 0.000 claims abstract description 3
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 37
- 229920003023 plastic Polymers 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- -1 polybutylene terephthalate Polymers 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 229920000106 Liquid crystal polymer Polymers 0.000 description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920006380 polyphenylene oxide Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
The invention provides a loudspeaker box which comprises a metal bottom shell and a loudspeaker single body, wherein the metal bottom shell is provided with an accommodating cavity, the loudspeaker single body comprises a vibration system, a magnetic circuit system for driving the vibration system to vibrate and sound and a basin frame for mounting the vibration system and the magnetic circuit system, and at least part of the basin frame is accommodated in the accommodating cavity; the metal drain pan includes bottom plate and curb plate, and the curb plate encloses the edge of locating the bottom plate and accepts the chamber in order to form, and the curb plate is equipped with the pilot hole, and the pilot hole is kept away from one side of accepting the chamber and has a great aperture, and the basin frame passes through injection moulding in the metal drain pan, and the lateral surface shaping of basin frame has the arch of inlaying in the pilot hole, the shape looks adaptation of bellied shape and pilot hole. According to the loudspeaker box provided by the invention, the side, away from the accommodating cavity, of the assembling hole is provided with the larger aperture, the reverse buckling structure can be formed between the bulge formed on the outer side surface of the basin frame and the metal bottom shell after injection molding, the bonding strength of the basin frame and the metal bottom shell is increased, and the basin frame can be stably connected to the metal bottom shell.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of acoustic design, in particular to a loudspeaker box.
[ background of the invention ]
The loudspeaker box is a necessary component of terminal equipment (such as a mobile phone), and some loudspeaker boxes adopting metal bottom shells appear on the market at present, and have the advantages of large back cavities, high heat conduction speed, high strength and the like. The metal bottom shell of the loudspeaker box and the single basin frame of the loudspeaker are formed in an injection mode, but after injection molding, the problem that the bonding force of the single basin frame of the loudspeaker and the metal bottom shell is not strong occurs, and the use of the loudspeaker box is influenced.
Therefore, there is a need to develop a new speaker box to solve the above problems.
[ summary of the invention ]
The invention aims to provide a loudspeaker box, which has the bonding strength after the injection molding of a basin frame and a metal bottom shell of a loudspeaker monomer.
The purpose of the invention is realized by adopting the following technical scheme:
a loudspeaker box comprises a metal bottom shell and a loudspeaker single body, wherein the metal bottom shell is provided with an accommodating cavity, the loudspeaker single body comprises a vibration system, a magnetic circuit system and a basin frame, the magnetic circuit system is used for driving the vibration system to vibrate and sound, the basin frame is used for mounting the vibration system and the magnetic circuit system, and at least part of the basin frame is accommodated in the accommodating cavity;
the metal drain pan includes bottom plate and curb plate, the curb plate encloses to be located the edge of bottom plate is in order to form accept the chamber, the curb plate is equipped with the pilot hole, the pilot hole is kept away from one side of accepting the chamber has great aperture, the basin frame through injection moulding in the metal drain pan, the lateral surface shaping of basin frame have inlay in the arch of pilot hole, bellied shape with the shape looks adaptation of pilot hole.
As a refinement, the fitting hole includes a through hole portion and a tapered hole portion communicating with the through hole portion, the tapered hole portion is provided on a side of the through hole portion away from the accommodating cavity, an aperture of the tapered hole portion is larger than an aperture of the through hole portion, and a shape of the protrusion is adapted to a shape of the fitting hole.
As a refinement, the fitting hole includes a first through hole portion and a second through hole portion communicating with the first through hole portion, the second through hole portion is disposed on a side of the first through hole portion away from the accommodating cavity, an aperture of the second through hole portion is larger than an aperture of the first through hole portion, and a shape of the protrusion is adapted to a shape of the fitting hole.
As an improvement, the assembly hole is a tapered hole, the farther the assembly hole is from the accommodating cavity, the larger the aperture of the assembly hole is, and the shape of the protrusion is matched with the shape of the assembly hole.
As an improved mode, the speaker box further comprises a plastic part, the metal bottom case is provided with an antenna signal interference key area, a through hole is formed in the position of the antenna signal interference key area of the metal bottom case, and the plastic part is embedded in the through hole.
As an improvement mode, the plastic part is made of LCP (LCP), PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), PPO (PPO), PP (PP), PET (polyethylene terephthalate) or PEN (PEN).
As an improvement mode, one side of the through hole close to the accommodating cavity is provided with a larger aperture.
As a refinement, the through hole includes a through hole portion and a tapered hole portion communicating with the through hole portion, the tapered hole portion communicates with the accommodation cavity, the tapered hole portion has a larger aperture than the through hole portion, and the shape of the plastic member is adapted to the shape of the through hole.
As an improvement, the plastic part is formed on the metal bottom shell by injection molding.
Compared with the prior art, the basin frame has the advantages that the assembling hole is formed in the side, far away from the accommodating cavity, of the side, the inverted buckle structure can be formed between the bulge formed in the outer side face of the basin frame and the metal bottom shell after injection molding, the bonding strength of the basin frame and the metal bottom shell is increased, and the basin frame can be stably connected to the metal bottom shell.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a speaker box according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of the loudspeaker enclosure shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic view of a variant embodiment of the through-hole;
FIG. 6 is a schematic view of another variant embodiment of the through-hole;
FIG. 7 is a schematic view of another variant embodiment of the through-hole;
FIG. 8 is a schematic view of another variant embodiment of the through-hole;
fig. 9 is an exploded view of a speaker box according to another embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view taken at C-C of FIG. 9;
FIG. 11 is an enlarged partial view of FIG. 10 at D;
FIG. 12 is a schematic view of a variant embodiment of the assembly holes;
FIG. 13 is a schematic view of another variant of the assembly holes;
fig. 14 is a schematic structural diagram of a speaker box according to another embodiment of the present invention;
FIG. 15 is a schematic cross-sectional view E-E of FIG. 14;
FIG. 16 is an exploded schematic view of the vibration system;
FIG. 17 is an exploded view of the magnetic circuit system;
fig. 18 is an exploded view of a speaker box according to another embodiment of the present invention;
fig. 19 is a schematic partial structure diagram of a mobile terminal according to an embodiment of the present invention;
fig. 20 is an exploded view of the structure shown in fig. 19.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
It should be noted that all directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
As shown in fig. 1-2, an embodiment of the present invention provides a speaker box 100 for a mobile terminal having an antenna, the speaker box 100 includes a metal bottom case 10, a plastic component 20 and a speaker unit 30, the metal bottom case 10 has a receiving cavity 11, the speaker unit 30 is at least partially received in the receiving cavity 11, the metal bottom case 10 has an antenna signal interference critical area 12, the metal bottom case 10 is provided with a through hole 13 at the antenna signal interference critical area, and the plastic component 20 is embedded in the through hole 13. Through setting up antenna signal interference key district 12 to through-hole 13 to embedding working of plastics 20 in through-hole 13 department, under the condition that maintains that metal drain pan 10 has better intensity and radiating effect, can effectively reduce the influence of metal drain pan 10 to antenna performance. Wherein the antenna signal interference critical area 12 can be obtained by simulation.
Alternatively, the metal bottom case 10 includes a bottom plate 14 and side plates 15, the side plates 15 are disposed around the edges of the bottom plate 14 to form the receiving cavity 11, and the through holes 13 are disposed on the bottom plate 14 of the metal bottom case 10.
Alternatively, the metal bottom case 10 is integrally press-molded from a stainless steel plate. Of course, the metal bottom case 10 may be integrally formed by stamping other metals, such as aluminum alloy.
Alternatively, the plastic member 20 is made of LCP (Liquid Crystal Polymer), PBT (Polybutylene terephthalate), PPS (Polyphenylene sulfide), PPO (Polyphenylene Oxide), PP (polypropylene), PET (Polyethylene terephthalate), or PEN (Polyethylene terephthalate) material. The plastic part 20 made of the above materials has a higher thermal conductivity, a lower dielectric constant and a lower dielectric loss, and can effectively reduce the influence of the metal bottom case 10 on the antenna performance under the condition of maintaining high strength and good heat dissipation effect of the metal bottom case 10.
Alternatively, the plastic member 20 is formed on the metal bottom case 10 by injection molding.
As shown in fig. 3 to 4, the through hole 13 includes a through hole portion 131 and a tapered hole portion 132 communicating with the through hole portion 131, the tapered hole portion 132 communicates with the housing cavity 11, the tapered hole portion 132 has a larger diameter than the through hole portion 131, and the shape of the plastic member is adapted to the shape of the through hole 13. Here, the through hole portion 131 means that the hole wall of the hole has no change in hole diameter and is parallel to the normal direction of the base plate 14, and this definition is used below. In this embodiment, compared to the manner of setting the through hole 13 as a through hole, by providing the tapered hole portion 132, the contact area between the plastic member 20 and the metal bottom case 10 can be increased, so that the plastic member 20 can be better fixed on the metal bottom case 10 after injection molding, and the edge of the plastic member 20 can be clamped on the metal bottom case 10, so that the plastic member 20 is not easy to fall off from the through hole 13.
Illustrated in fig. 5 is a variant of the through-hole 13, in which the through-hole 13a comprises a first through-hole portion 13a1 and a second through-hole portion 13a2 communicating with the first through-hole portion 13a1, the second through-hole portion 13a2 communicating with the housing cavity 11, the second through-hole portion 13b2 having a larger diameter than the first through-hole portion 13a1, the shape of the plastic element being adapted to the shape of the through-hole 13 a. In a similar way, the contact area of the plastic part and the metal bottom shell can be increased by the embodiment, so that the plastic part can be better fixed on the metal bottom shell after injection molding, and the edge of the plastic part can be clamped on the metal bottom shell, so that the plastic part is not easy to fall off from the through hole.
Fig. 6 shows another variant of the through hole 13, in which the through hole 13b is a tapered hole, and the diameter of the through hole 13b is larger the closer the through hole 13b is to the receiving cavity 11. In a similar way, the contact area of the plastic part and the metal bottom shell can be increased by the embodiment, so that the plastic part can be better fixed on the metal bottom shell after injection molding, and the edge of the plastic part can be clamped on the metal bottom shell, so that the plastic part is not easy to fall off from the through hole.
It should be noted that the through holes are not limited to the arrangement of 13, 13a, 13b, as long as one side of the through hole close to the accommodating cavity 11 has a larger aperture, so that the plastic member and the metal bottom case are connected more firmly.
Illustrated in fig. 7 is another variant of the through-hole 13, in which the through-hole 13c comprises a first through-hole portion 13c1, a second through-hole portion 13c2 and a third through-hole portion 13c3 located between the first through-hole portion 13c1 and the second through-hole portion 13c2, the third through-hole portion 13c3 communicates with the first through-hole portion 13c1 and the second through-hole portion 13c2, the first through-hole portion 13c1 and the second through-hole portion 13c2 each have a larger diameter than the third through-hole portion 13c3, and the plastic part is shaped to fit the shape of the through-hole 13 c. In this embodiment, the plastic part after injection molding can be firmly clamped on the metal bottom case.
Illustrated in fig. 8 is another modified embodiment of the through hole 13, in which the through hole 13d includes a first tapered hole portion 13d1 and a second tapered hole portion 13d2 communicating with the first tapered hole portion 13d1, the farther the first tapered hole portion 13d1 is from the housing cavity 11, the larger the diameter of the first tapered hole portion 13d1, the closer the second tapered hole portion 13d2 is to the housing cavity 11, and the larger the diameter of the second tapered hole portion 13d2, and the shape of the plastic member is matched with the shape of the through hole 13 d. In this embodiment, the plastic part after injection molding can be firmly clamped on the metal bottom case.
It should be noted that the through holes are not limited to the arrangement manner of 13c and 13d, as long as the aperture of the through holes is firstly reduced and then increased in the thickness direction of the metal bottom case, so that the plastic member and the metal bottom case are connected more firmly.
As shown in fig. 9 to 11, in some embodiments, the speaker unit 30 includes a vibration system 31, a magnetic circuit system 32 for driving the vibration system 31 to vibrate and generate sound, and a frame 33 for mounting the vibration system 31 and the magnetic circuit system 32, the frame 33 is at least partially received in the receiving cavity 11, the side plate 15 of the metal bottom case 10 is provided with a mounting hole 16, the frame 33 is formed on the metal bottom case 10 by injection molding, and a protrusion 331 embedded in the mounting hole 16 is formed on an outer side surface of the frame 33. In this embodiment, after injection molding, the tub 33 and the metal bottom case 10 can be firmly connected by the engagement of the protrusions 331 with the fitting holes 16. Optionally, the frame 33 is made of a plastic material. It should be noted that the mounting holes 16 are not limited to be disposed on the side plates 15 of the metal bottom case 10, for example, the mounting holes 16 may be disposed on the bottom plate 14 of the metal bottom case 10, which depends on actual design requirements.
In some embodiments, the fitting hole 16 includes a through hole portion 161 and a tapered hole portion 162 communicating with the through hole portion 161, the tapered hole portion 162 is provided on a side of the through hole portion 161 away from the housing cavity 11, an aperture of the tapered hole portion 162 is larger than that of the through hole, and a shape of the protrusion 331 is adapted to a shape of the fitting hole. With this embodiment, by providing the assembly holes 16 including the tapered hole portion 162, after injection molding, a reverse-buckling structure can be formed between the protrusions 331 formed on the outer side surface of the tub 33 and the metal bottom case 10, so as to increase the bonding strength between the tub 33 and the metal bottom case 10, and the tub 33 can be stably connected to the metal bottom case 10.
Illustrated in fig. 12 is another modified embodiment of the fitting hole 16, in which the fitting hole 16a includes a first through-hole portion 16a1 and a second through-hole portion 16a2 communicating with the first through-hole portion 16a1, the second through-hole portion 16a2 is provided on a side of the first through-hole portion 16a1 away from the housing cavity 11, an aperture of the second through-hole portion 16a2 is larger than an aperture of the first through-hole portion 16a1, and a shape of the protrusion is adapted to a shape of the fitting hole. In a similar way, after the injection molding, the inverted buckle structure can be formed between the bulge formed on the outer side surface of the basin frame and the metal bottom shell, so that the bonding strength of the basin frame and the metal bottom shell is increased, and the basin frame can be stably connected to the metal bottom shell.
Fig. 13 shows another modified embodiment of the fitting hole, in which the fitting hole 16b is a tapered hole, and the further the fitting hole 16b is away from the housing cavity 11, the larger the diameter of the fitting hole 16b, and the shape of the protrusion is matched to the shape of the fitting hole. In a similar way, after the injection molding, the inverted buckle structure can be formed between the bulge formed on the outer side surface of the basin frame and the metal bottom shell, so that the bonding strength of the basin frame and the metal bottom shell is increased, and the basin frame can be stably connected to the metal bottom shell.
It can be understood that the assembling holes are not limited to the setting manner of 16, 16a and 16b, as long as one side of the assembling holes away from the containing cavity 11 has a larger aperture, so that the injection-molded basin stand can be firmly connected to the metal bottom shell through the inverted buckle structure formed by the protrusions and the assembling holes.
As shown in fig. 9 and 14-17, in some embodiments, the speaker box 100 further includes a breathable isolation member 40 disposed inside the frame 33, the breathable isolation member 40 and the top of the frame 33 enclose to form a front cavity 11a, the breathable isolation member 40, the metal bottom case 10 and the bottom of the frame 33 enclose to form a rear cavity 11b, and the vibration system 31 and the magnetic circuit system 32 are disposed in the front cavity 11 a. Optionally, the breathable barrier 40 is a breathable mesh.
In some embodiments, the frame 33 includes two sub-frames 33a spaced apart from each other, and the two sub-frames 33a are respectively formed on two opposite sides of the metal bottom case 10, so that the occupied space of the frame 33 can be reduced, and the speaker box has a larger rear cavity 11b, thereby obtaining a better sound effect. Of course, it is also possible to provide the frame 33 as a complete ring structure.
Illustratively, the two sub-frames 33a are respectively provided with a first step 332 on opposite sides, the two opposite sides of the support plate 40 are respectively lapped on the first steps 332 of the two sub-frames 33a, and the magnetic circuit system 32 is mounted on the support plate 40.
The metal bottom case 10 is provided with a filling hole 17 communicated with the rear cavity 11b, and the rear cavity 11b is filled with sound absorption particles through the filling hole 17.
Optionally, the vibration system 31 includes a lower voice diaphragm 311, an annular support 312, an annular diaphragm 313, a voice coil bobbin 314, a voice coil 315, and a dome 316. Illustratively, two lower sound films 311 are arranged, the two lower sound films 311 are respectively located on two opposite sides of the magnetic circuit system 32, the outer side of the lower sound film 311 is clamped between the basin frame 33 and the annular support 312, the basin frame 33 is provided with a second step 333, the lower surface of the outer side of the lower sound film 311 is lapped on the second step 333, the annular support 312 is attached to the upper surface of the outer side of the lower sound film 311, and the annular support 312 and the basin frame 33 clamp the outer side of the lower sound film 311 from the upper surface and the lower surface. The outer side of the ring-shaped diaphragm 313 is connected to the ring-shaped support 312. The voice coil bobbin 314 is connected to the inner side of the lower diaphragm 311 and the inner side of the ring-shaped diaphragm 313. The voice coil 315 is connected to the voice coil bobbin 314, and the voice coil 315 is driven by the magnetic circuit system 32 to vibrate up and down, so as to drive the lower voice diaphragm 311 and the annular diaphragm 313 to vibrate up and down to generate sound. The dome 316 is provided on the inner side of the ring-shaped diaphragm 313 and is mounted to the voice coil bobbin 314.
In some embodiments, the voice coil bobbin 314 includes a bobbin body 3141 and a supporting frame 3142, the bobbin body 3141 is annular, an upper surface of the bobbin body 3141 is connected to the annular diaphragm 313, a lower surface of the bobbin body 3141 is connected to the voice coil 315 and an inner side of the lower diaphragm 311, and the supporting frame 3142 is mounted on the inner side of the bobbin body 3141.
In some embodiments, the vibration system 31 further includes two elastic supporting members 317 respectively disposed on two opposite sides of the voice coil 315, the elastic supporting members 317 include an elastic supporting member body 3171 connected to the frame 33 and an elastic arm 3172 extending from the elastic supporting member body 3171 toward the voice coil 315, and an end of the elastic arm 3172 away from the elastic supporting member body 3171 is sandwiched between the lower diaphragm 311 and the bobbin body 3141. Preferably, the elastic support 317 is a flexible circuit board, and may serve to electrically connect the voice coil 315 and an external power source, in addition to functioning as an elastic support for the voice coil 315.
The magnetic circuit system 32 includes a magnetic bowl 321 installed in the middle of the bottom frame, a main magnetic steel 322 installed in the middle of the magnetic bowl 321, four auxiliary magnetic steels 323 installed on the magnetic bowl 321 and surrounding the main magnetic steel 322, a main pole core 324 attached to one side of the main magnetic steel 322 far away from the magnetic bowl 321, and an auxiliary pole core 325 installed on one side of the auxiliary magnetic steel 323 far away from the magnetic bowl 321, the main magnetic steel 322 and the auxiliary magnetic steel 323 are arranged at intervals, and the voice coil 315 is movably sleeved outside the main magnetic steel 322. It is understood that the number of the sub magnetic steels 323 is not limited to four, for example, two sub magnetic steels 323 are provided, and two sub magnetic steels 323 may be provided on two opposite sides of the main magnetic steel 322.
As shown in fig. 18, in some other embodiments, the speaker box ' includes a bottom case assembly 10 ' and a speaker unit 20 ', the bottom case assembly 10 ' has a receiving cavity 11 ', and the speaker unit 20 ' is at least partially received in the receiving cavity 11 '; the bottom case assembly 10 ' includes a metal bottom case 12 ' and a protection film 13 ', the metal bottom case 12 ' has the receiving cavity 11 ', and the protection film 13 ' is attached to an outer side surface of the metal bottom case 12 '. By attaching the protective film 13 ' to the outer side surface of the metal bottom case 12 ', the protective film 13 ' can effectively prevent the outer surface of the metal bottom case 12 ' from being scratched in the subsequent assembly process of the metal bottom case 12 '.
Alternatively, the bottom case assembly 10 'is integrally formed by stamping a metal plate with a protective film attached thereto, the manufacturing process is simple, and the protective film 13' can prevent the metal plate from being scratched on the surface during the stamping process.
Alternatively, the protective film 13' is any one of a PET (Polyethylene terephthalate) film, a PE (Polyethylene) film, and a PVC (Polyvinyl chloride) film.
Optionally, the protective film 13 'includes at least a polymer layer for providing color display, and the color of the protective film 13' can be changed by changing the material of the polymer layer, so that the color requirement of the product by the customer can be satisfied.
As shown in fig. 19-20, an embodiment of the present invention further provides a terminal device, where the mobile terminal includes a housing 400 and the speaker box 100, the housing 400 includes a housing body 200 and at least one antenna 300, the housing body 200 is provided with a receiving cavity 202 with an opening 201 at one side, and the antenna 300 is provided on the housing body 200 and extends to one side of the opening 201; the speaker box 100 is disposed in the receiving cavity 202, and the bottom plate 14 is exposed out of the receiving cavity 202 through the opening 201, and the antenna signal interference critical area 12 is located on a side of the bottom plate 14 close to the antenna 300.
Alternatively, the antenna 300 is directly molded on the housing body 200 using a Laser Direct molding (LDS) technique.
The provided terminal equipment can be a mobile phone, a notebook computer, a tablet computer, wearable equipment and the like.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A loudspeaker box is characterized by comprising a metal bottom shell and a loudspeaker single body, wherein the metal bottom shell is provided with an accommodating cavity, the loudspeaker single body comprises a vibration system, a magnetic circuit system and a basin frame, the magnetic circuit system is used for driving the vibration system to vibrate and sound, the basin frame is used for mounting the vibration system and the magnetic circuit system, and at least part of the basin frame is accommodated in the accommodating cavity;
the metal drain pan includes bottom plate and curb plate, the curb plate encloses to be located the edge of bottom plate is in order to form accept the chamber, the curb plate is equipped with the pilot hole, the pilot hole is kept away from one side of accepting the chamber has great aperture, the basin frame through injection moulding in the metal drain pan, the lateral surface shaping of basin frame have inlay in the arch of pilot hole, bellied shape with the shape looks adaptation of pilot hole.
2. The speaker cabinet as claimed in claim 1, wherein the fitting hole includes a through hole portion and a tapered hole portion communicating with the through hole portion, the tapered hole portion is provided on a side of the through hole portion away from the housing chamber, an aperture of the tapered hole portion is larger than an aperture of the through hole portion, and a shape of the protrusion is adapted to a shape of the fitting hole.
3. The speaker box according to claim 1, wherein the fitting hole includes a first through hole portion and a second through hole portion communicating with the first through hole portion, the second through hole portion is provided on a side of the first through hole portion away from the receiving cavity, an aperture of the second through hole portion is larger than an aperture of the first through hole portion, and a shape of the protrusion is adapted to a shape of the fitting hole.
4. The speaker box as claimed in claim 1, wherein the fitting hole is a tapered hole, the diameter of the fitting hole is larger the farther away the fitting hole is from the receiving cavity, and the shape of the protrusion is matched with the shape of the fitting hole.
5. The speaker box of any one of claims 1 to 4, further comprising a plastic part, wherein the metal bottom shell has an antenna signal interference critical area, and the metal bottom shell is provided with a through hole at the antenna signal interference critical area, and the plastic part is embedded in the through hole.
6. A loudspeaker enclosure according to claim 5, wherein the plastics material is of LCP or PBT or PPS or PPO or PP or PET or PEN material.
7. The speaker box as claimed in claim 5, wherein a side of the through hole near the receiving cavity has a larger aperture.
8. The speaker cabinet as claimed in claim 7, wherein the through hole includes a through hole portion and a tapered hole portion communicating with the through hole portion, the tapered hole portion communicating with the receiving cavity, the tapered hole portion having a larger diameter than the through hole portion, the plastic member having a shape adapted to a shape of the through hole.
9. The speaker cabinet of claim 5, wherein the plastic component is injection molded to the metal bottom housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055712.5A CN112104935A (en) | 2020-09-29 | 2020-09-29 | Loudspeaker box |
| PCT/CN2020/122602 WO2022067908A1 (en) | 2020-09-29 | 2020-10-21 | Speaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055712.5A CN112104935A (en) | 2020-09-29 | 2020-09-29 | Loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112104935A true CN112104935A (en) | 2020-12-18 |
Family
ID=73783760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011055712.5A Pending CN112104935A (en) | 2020-09-29 | 2020-09-29 | Loudspeaker box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112104935A (en) |
| WO (1) | WO2022067908A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601160A (en) * | 2020-12-08 | 2021-04-02 | 歌尔股份有限公司 | Sound production device and electronic device |
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| CN207200908U (en) * | 2017-08-29 | 2018-04-06 | 歌尔科技有限公司 | Loudspeaker module and electronic equipment |
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| CN205584479U (en) * | 2016-03-31 | 2016-09-14 | 歌尔声学股份有限公司 | Loudspeaker module group |
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| CN204069319U (en) * | 2014-07-18 | 2014-12-31 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN206433105U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN207200908U (en) * | 2017-08-29 | 2018-04-06 | 歌尔科技有限公司 | Loudspeaker module and electronic equipment |
| WO2020000925A1 (en) * | 2018-06-25 | 2020-01-02 | 歌尔股份有限公司 | Sounding device and portable terminal |
| CN109195078A (en) * | 2018-08-09 | 2019-01-11 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN208924492U (en) * | 2018-09-20 | 2019-05-31 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN210781330U (en) * | 2019-11-12 | 2020-06-16 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
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| CN112601160A (en) * | 2020-12-08 | 2021-04-02 | 歌尔股份有限公司 | Sound production device and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022067908A1 (en) | 2022-04-07 |
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