CN111405432B - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN111405432B CN111405432B CN201911350648.0A CN201911350648A CN111405432B CN 111405432 B CN111405432 B CN 111405432B CN 201911350648 A CN201911350648 A CN 201911350648A CN 111405432 B CN111405432 B CN 111405432B
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- Prior art keywords
- rear cavity
- hole
- lower cover
- sound
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005192 partition Methods 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides a loudspeaker box, wherein a sound generating monomer divides an accommodating space into a front cavity and a rear cavity, a baffle wall divides the rear cavity into a first rear cavity and a second rear cavity, a lower cover comprises a lower cover body, a convex wall, a through hole, a supporting step and a cover plate, the lower cover body and the convex wall jointly enclose a sound guide groove, and the sound guide groove is communicated with the second rear cavity; the through hole communicates the first rear cavity with the sound guide groove; the two supporting steps are arranged on two opposite sides of the through hole at intervals; the cover plate completely covers the through hole; the ventilating partition piece is attached to the convex wall and completely covers the sound guide groove, sound absorption particles are filled in the second rear cavity, and the ventilating partition piece encapsulates the sound absorption particles in the second rear cavity to form a virtual sound cavity; the air flow in the first rear cavity bypasses the baffle wall, then sequentially passes through the through hole and the sound guide groove and enters the second rear cavity through the breathable partition piece, and the two supporting steps are respectively positioned at two opposite sides of the through hole parallel to the air flow direction. Compared with the related art, the loudspeaker box disclosed by the invention has excellent low-frequency acoustic performance.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to an electroacoustic device, in particular to a loudspeaker box.
[ background of the invention ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of a mobile phone are very diverse, one of which is a high-quality music function, and thus, a speaker box for playing sound is widely applied to the current smart mobile devices.
The loudspeaker box in the related art comprises a lower cover, an upper cover which is assembled with the lower cover to form an accommodating space, a sounding single body accommodated in the accommodating space, a baffle wall formed in the accommodating space and a ventilating partition piece; the sounding single body and the upper cover enclose a front cavity, and the sounding single body, the upper cover and the lower cover together enclose a rear cavity; the baffle wall divides the rear cavity into a first rear cavity and a second rear cavity which are mutually communicated, the sounding monomer is positioned in the first rear cavity, and the second rear cavity is filled with sound-absorbing particles; the fender wall is equipped with the through-hole that runs through on it, ventilative isolator covers completely establishes the through-hole, ventilative isolator will inhale the sound granule encapsulate in cavity behind the second is thus improved in order to form virtual sound chamber the low frequency acoustic performance of speaker box.
However, in the speaker box of the related art, the area of the air-permeable partition for air permeation depends on the size of the through hole, and since the baffle area is small relative to the second rear cavity, the number of the sound-absorbing particles participating in the formation of the virtual sound cavity is insufficient, affecting the acoustic performance. In addition, the second rear cavity is to keeping away from the long and narrow structure that the sound production monomer direction extends is kept away from easily the sound granule of inhaling of ventilative separator hardly exerts the effect for the volume in the virtual sound chamber of participation in the second rear cavity diminishes, and then leads to having reduced the low frequency acoustic performance of speaker box.
Therefore, it is necessary to provide a new speaker box to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a loudspeaker box with good audio performance, particularly low-frequency performance.
In order to achieve the above object, the present invention provides a speaker box, which includes a lower cover, an upper cover covering the lower cover and enclosing together to form an accommodation space, a sounding unit accommodated in the accommodation space, a baffle wall formed in the accommodation space, and a ventilation spacer; the sound-producing unit divides the accommodating space into a front cavity and a rear cavity, the blocking wall is located in the rear cavity and divides the rear cavity into a first rear cavity and a second rear cavity, the sound-producing unit is located in the first rear cavity, the lower cover comprises a lower cover body, an annular convex wall, a through hole, a supporting step and a cover plate, the lower cover body covers the upper cover and jointly encloses the accommodating space, the annular convex wall extends towards the second rear cavity, the through hole penetrates through the lower cover body, the supporting step is formed by sinking of one side, away from the upper cover, of the lower cover body towards the upper cover, the cover plate is simultaneously fixed on the lower cover body and the supporting step, the lower cover body and the convex wall jointly enclose a sound guide groove, the sound guide groove is communicated with the second rear cavity, and the orthographic projection of the sound guide groove towards the upper cover completely falls into the second rear cavity; the orthographic projection of the through hole to the upper cover direction simultaneously falls into the first rear cavity, the baffle wall and the second rear cavity, and the first rear cavity is communicated with the sound guide groove through the through hole; the two supporting steps are arranged on two opposite sides of the through hole at intervals, and the two supporting steps and the lower cover body jointly enclose the through hole; the cover plate completely covers the through hole; the breathable partition piece is attached to the convex wall and completely covers the sound guide groove, sound absorption particles are filled in the second rear cavity, and the breathable partition piece encapsulates the sound absorption particles in the second rear cavity to form a virtual sound cavity; the air flow in the first rear cavity bypasses the baffle wall and then sequentially passes through the through hole and the sound guide groove and enters the second rear cavity through the breathable partition piece, and the two supporting steps are respectively positioned at two opposite sides of the through hole parallel to the air flow direction.
Preferably, the cover plate comprises a cover plate body and a cover plate connecting part bent and extended towards the upper cover direction from the cover plate body, and the cover plate connecting part is annular and is respectively connected with the lower cover body and the two supporting steps.
Preferably, glue is filled in one side, far away from the upper cover, of the cover plate connecting part, and the glue is respectively glued and fixed with the lower cover body and the two supporting steps.
Preferably, the cover plate body is flush with the lower cover body.
Preferably, the thickness of the cover plate is smaller than that of the lower cover.
Preferably, the cover plate is made of any one of PET, steel sheet and plastic sheet.
Preferably, the cover plate is a steel plate, and the thickness of the cover plate is 0.15 mm.
Preferably, the blocking wall includes a first blocking wall extending from the convex wall to the direction of the upper cover and a second blocking wall extending from the upper cover to the direction of the convex wall, and the first blocking wall abuts against the second blocking wall.
Preferably, the breathable separator is fixed to the convex wall by means of hot melting.
Preferably, the upper cover is provided with a powder tank hole penetrating through the upper cover and a sealing cover covering the powder tank hole, and the powder tank hole is communicated with the second rear cavity.
Compared with the prior art, the loudspeaker box has the advantages that the rear cavity is divided into the first rear cavity and the second rear cavity by the baffle wall, the lower cover is provided with the sound guide groove, the through hole and the two supporting steps which penetrate through the lower cover and are mutually communicated, the through hole is communicated with the first rear cavity, the sound guide groove is communicated with the second rear cavity, and the two supporting steps are arranged at the two opposite sides of the through hole along the long axis of the lower cover body at intervals; the cover plate is fixed on the lower cover body and the supporting step at the same time and completely covers the second through hole to form the sealing of the rear cavity; the second breathable isolating piece is attached to the convex wall and is spaced from the cover plate, and the second breathable isolating piece completely covers the sound guide groove, so that the sound absorbing particles are packaged in the second rear cavity to form a virtual sound cavity. In the structure, the second breathable isolating piece, the cover plate and the second through hole are surrounded to form an air guide channel structure for communicating the first rear cavity with the second rear cavity, so that the low-frequency sound production performance is realized. Wherein, the sound guide groove is to keeping away from the direction of keeping off the wall extends for keep away from the sound granule of inhaling of first ventilative isolator also can better play a role, thereby make the volume grow in the virtual sound chamber of second back cavity formation, thereby effectively improved the low frequency acoustic performance of speaker box. In addition, the supporting steps are arranged on the two opposite sides of the through hole at intervals, so that the step for fixing the cover plate is avoided being arranged in the direction of the airflow in the first rear cavity flowing to the second rear cavity, the airflow flows more smoothly, and the low-frequency acoustic performance of the loudspeaker box is effectively improved.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of a speaker box according to the present invention;
FIG. 2 is a schematic perspective view of a portion of a speaker cabinet according to the present invention;
FIG. 3 is an enlarged view taken along section B of FIG. 1;
FIG. 4 is a sectional view taken along line A-A of FIG. 1;
FIG. 5 is an enlarged view taken along section C in FIG. 4;
FIG. 6 is a schematic perspective view of a cover plate of a speaker box according to the present invention;
fig. 7 is an assembly view of the lower cover and the second barrier of the speaker box of the present invention.
[ detailed description ] embodiments
The invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 1-6, the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sound generating unit 3, a baffle wall 4 and a ventilation spacer 5.
The lower cover 1 and the upper cover 2 are matched together to form a containing space 7. In the present embodiment, the upper cover 2 and the lower cover 1 are assembled by ultrasonic welding.
The lower cover 1 comprises a lower cover body 11 covering the upper cover 2 and enclosing the accommodating space 7, an annular convex wall 12 extending from the lower cover body 11 to the accommodating space 7, a through hole 101 penetrating through the lower cover body 11, a support step 13 formed by sinking the lower cover body 11 away from the upper cover 2 in the direction of the upper cover 2, and a cover plate 14 fixed to the lower cover body 11 and the support step 13.
The upper cover 2 is provided with a powder tank hole 21 penetrating through the upper cover and a sealing cover 22 covering the powder tank hole 21.
The sounding single body 3 is accommodated in the accommodating space 7. The sound generating unit 3 divides the accommodating space 7 into a front cavity 71 and a rear cavity 72. In the present embodiment, the sound generating unit 3 and the upper cover 2 enclose the front cavity 71 for generating sound; the rear cavity 72 is defined by the sounding monomer 3, the lower cover 1 and the upper cover 2 together, and is used for improving low-frequency acoustic performance.
The blocking wall 4 is formed in the accommodating space 7. Specifically, the blocking wall 4 includes a first blocking wall 41 extending from the protruding wall 12 toward the upper lid 2 and a second blocking wall 42 extending from the upper lid 2 toward the protruding wall 12, and the first blocking wall 41 is in contact with the second blocking wall 42. The blocking wall 4 is located in the rear chamber 72 and divides the rear chamber 72 into a first rear chamber 721 and a second rear chamber 722. In the present embodiment, the blocking wall 4 connects the upper cover 2 and the lower cover 1. The convex wall 12 is formed by extending the lower cover body 11 to the second rear cavity. The sounding unit 3 is positioned in the first back cavity 721; the second rear cavity 722 is filled with sound-absorbing particles (not shown) to form a virtual acoustic cavity (i.e., a D-Bass acoustic cavity) for improving low frequency acoustic performance.
Specifically, the powder tank hole 21 is communicated with the second rear cavity 722, and the sound-absorbing particles are filled into the second rear cavity 722 through the powder tank hole 21 and then are covered and sealed through the sealing cover 22.
The lower cover body 11 and the convex wall 12 together enclose a sound guide groove 102. In the present embodiment, the sound guide groove 102 is formed by recessing the lower cover 1 from the side close to the upper cover 2 to the side away from the upper cover 2. The sound guide groove 102 communicates with the second rear chamber 722. The orthographic projection of the sound guide groove 102 to the direction of the upper cover 2 falls completely into the second rear cavity 722.
The through hole 101 penetrates the lower cover 1. The orthographic projection of the through hole 101 to the upper cover 2 direction simultaneously falls into the first rear cavity 721, the blocking wall 4 and the second rear cavity 722, and the through hole 101 communicates the first rear cavity 721 with the sound guide groove 102.
The support step 13 includes two. The two supporting steps 13 are arranged at intervals on two opposite sides of the through hole along the long axis of the lower cover body 11. The two supporting steps 13 and the lower cover body 11 together enclose the through hole 101. The supporting step 13 is used for supporting and fixing the cover plate 14.
The cover plate 14 completely covers the through hole 101. In the present embodiment, the cover plate 14 is disposed on a side of the lower cover 1 away from the upper cover 2. Specifically, the cover plate 14 includes a cover plate body 141 and a cover plate connecting portion 142 extending from the cover plate body 141 to the upper cover 2 in a bending manner, and the cover plate connecting portion 142 is annular and is respectively connected to the lower cover body 11 and the two supporting steps 13. In this embodiment, the speaker box 100 further includes glue 7. And filling the glue 7 into one side of the cover plate connecting part 142, which is far away from the upper cover 2, wherein the glue 7 is respectively glued and fixed with the lower cover body 11 and the two support steps 13. According to the structure, the cover plate connecting part 142 is glued, so that the airflow flowing of the cover plate 14 close to one side of the upper cover 2 is not influenced, the volume maximization of an internal cavity is ensured, and the improvement of the low-frequency acoustic performance of the loudspeaker box 100 is facilitated.
Preferably, the cover plate body 141 is flush with the lower cover body 11. This configuration makes the speaker box 100 easier to assemble.
In this embodiment, the sound guide groove 102 is integrally formed by a die lifter molding process, so that the assembly process is saved and the production efficiency is improved.
The cover plate 14 is made of any one of PET, steel sheets and plastic sheets. In this embodiment, the cover plate 14 is made of PET material. Of course, without being limited thereto, the cover plate 14 may also be a steel sheet having a thickness of 0.15 mm. The thickness of the cover plate 14 is smaller than that of the lower cover 1. Of course, the material and size of the cover plate 14 are not limited thereto, and it is sufficient that its young's modulus is larger than that of the lower cover 1, so that its thickness can be reduced relative to the cover plate while securing strength.
In this embodiment, the air-permeable partition 5 encapsulates the sound-absorbing particles (not shown) in the second rear cavity 722 to form a virtual sound cavity.
The blocking wall 4 is provided with a first through hole 40 penetrating therethrough.
The breathable isolating piece 5 is attached to one side, close to the upper cover 2, of the lower cover 1. The air-permeable partition 5 is fixed to the lower cover 1 by means of hot melting. In the present embodiment, the air-permeable partition 5 is fixed to the convex wall 12 by heat fusion. The air-permeable partition 5 completely covers the sound guide groove 102. The air-permeable partition 5 encapsulates the sound-absorbing particles in the second rear cavity 722.
That is to say, in the above structure, the sound guide groove 102 and the through hole 101 are disposed by using the thickness space of the lower cover 1, and the air-permeable partition 5 and the cover plate 14 are respectively disposed on two sides of the lower cover 1 to form an interval arrangement, so that the air-permeable partition 5, the cover plate 14, the sound guide groove 102 and the through hole 101 together enclose an air guide channel structure communicating the first rear cavity 721 with the second rear cavity 722, and the air flow of the first rear cavity 721 enters the second rear cavity 722 through the air guide channel structure, thereby implementing a low-frequency acoustic effect.
The air flow in the first rear cavity 721 bypasses the baffle wall 4, then passes through the through hole 101 and the sound guide groove 102 in sequence, and enters the second rear cavity 722 through the second air-permeable partition 5. As indicated by the arrows in fig. 4 and 5. Preferably, the supporting steps 13 are disposed at two opposite sides of the through hole 101 at intervals. Specifically, the two supporting steps 13 are respectively located on two opposite sides of the through hole 101 parallel to the airflow flowing direction. The direction in which the airflow in the first rear chamber 721 flows toward the second rear chamber 722 avoids providing a step for fixing the cover plate 14, thereby making the airflow flow smoother. In addition, the sound guide groove 102 extends away from the baffle wall 4. That is, because the air guide channel structure extends along the length direction of the second rear cavity 722, the sound-absorbing particles in the second rear cavity 722 at a position far away from the first rear cavity 721 can fully circulate with the air guide channel, i.e. the sound-absorbing particles can fully play a role in improving the low-frequency acoustic performance, so that the volume of the virtual sound cavity formed by the second rear cavity is increased, and the low-frequency acoustic performance of the loudspeaker box 100 is better.
Compared with the prior art, the loudspeaker box has the advantages that the rear cavity is divided into the first rear cavity and the second rear cavity by the baffle wall, the lower cover is provided with the sound guide groove, the through hole and the two supporting steps which penetrate through the lower cover and are mutually communicated, the through hole is communicated with the first rear cavity, the sound guide groove is communicated with the second rear cavity, and the two supporting steps are arranged at the two opposite sides of the through hole along the long axis of the lower cover body at intervals; the cover plate is fixed on the lower cover body and the supporting step at the same time and completely covers the second through hole to form the sealing of the rear cavity; the second breathable isolating piece is attached to the convex wall and is spaced from the cover plate, and the second breathable isolating piece completely covers the sound guide groove, so that the sound absorbing particles are packaged in the second rear cavity to form a virtual sound cavity. In the structure, the second breathable isolating piece, the cover plate and the second through hole are surrounded to form an air guide channel structure for communicating the first rear cavity with the second rear cavity, so that the low-frequency sound production performance is realized. Wherein, the sound guide groove is to keeping away from the direction of keeping off the wall extends for keep away from the sound granule of inhaling of first ventilative isolator also can better play a role, thereby make the volume grow in the virtual sound chamber of second back cavity formation, thereby effectively improved the low frequency acoustic performance of speaker box. In addition, the supporting steps are arranged on the two opposite sides of the through hole at intervals, so that the step for fixing the cover plate is avoided being arranged in the direction of the airflow in the first rear cavity flowing to the second rear cavity, the airflow flows more smoothly, and the low-frequency acoustic performance of the loudspeaker box is effectively improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A loudspeaker box comprises a lower cover, an upper cover, a sound production single body, a baffle wall and a ventilating partition, wherein the upper cover is covered on the lower cover and encloses an accommodating space together; the sound production monomer will accommodating space separates into antechamber and back chamber, keep off the wall and be located the back chamber will the back chamber is separated for first back chamber and second back chamber, the sound production monomer is located first back chamber, its characterized in that:
the lower cover comprises a lower cover body which covers the upper cover and jointly encloses the accommodating space, an annular convex wall which extends towards the second rear cavity from the lower cover body, a through hole which penetrates through the lower cover body, a supporting step which is formed by the fact that one side of the lower cover body, which is far away from the upper cover, is sunken towards the upper cover, and a cover plate which is simultaneously fixed on the lower cover body and the supporting step,
the lower cover body and the convex wall jointly enclose a sound guide groove, the sound guide groove is communicated with the second rear cavity, and the orthographic projection of the sound guide groove to the upper cover direction completely falls into the second rear cavity;
the orthographic projection of the through hole to the upper cover direction simultaneously falls into the first rear cavity, the baffle wall and the second rear cavity, and the first rear cavity is communicated with the sound guide groove through the through hole;
the two supporting steps are arranged on two opposite sides of the through hole at intervals, and the two supporting steps and the lower cover body jointly enclose the through hole;
the cover plate completely covers the through hole;
the breathable partition piece is attached to the convex wall and completely covers the sound guide groove, sound absorption particles are filled in the second rear cavity, and the breathable partition piece encapsulates the sound absorption particles in the second rear cavity to form a virtual sound cavity;
the air flow in the first rear cavity bypasses the baffle wall and then sequentially passes through the through hole and the sound guide groove and enters the second rear cavity through the breathable partition piece, and the two supporting steps are respectively positioned at two opposite sides of the through hole parallel to the air flow direction.
2. The speaker box according to claim 1, wherein the cover plate includes a cover plate body and a cover plate connecting portion extending from the cover plate body in a bending manner toward the upper cover, and the cover plate connecting portion is annular and connected to the lower cover body and the two supporting steps, respectively.
3. A loudspeaker enclosure according to claim 2, wherein the side of the cover plate connecting portion remote from the upper cover is filled with glue, which forms a glued fixation with the lower cover body and the two supporting steps, respectively.
4. A loudspeaker enclosure as claimed in claim 2, wherein the cover body is flush with the lower cover body.
5. A loudspeaker enclosure according to claim 1, wherein the cover plate has a thickness less than a thickness of the lower cover.
6. The speaker cabinet of claim 1, wherein the cover plate is made of any one of PET, steel sheet and plastic sheet.
7. A loudspeaker enclosure according to claim 6, wherein the cover plate is steel and has a thickness of 0.15 mm.
8. A loudspeaker enclosure according to claim 1, wherein the blocking walls comprise a first blocking wall extending from the convex wall in the direction of the upper cover and a second blocking wall extending from the upper cover in the direction of the convex wall, the first blocking wall abutting against the second blocking wall.
9. A loudspeaker enclosure according to claim 1, wherein the air-permeable partition is secured to the convex wall by heat-staking.
10. The speaker cabinet as claimed in claim 1, wherein the upper cover is provided with a powder tank hole penetrating therethrough and a cover lid covering the powder tank hole, the powder tank hole communicating with the second rear chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350648.0A CN111405432B (en) | 2019-12-24 | 2019-12-24 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350648.0A CN111405432B (en) | 2019-12-24 | 2019-12-24 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111405432A CN111405432A (en) | 2020-07-10 |
| CN111405432B true CN111405432B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911350648.0A Expired - Fee Related CN111405432B (en) | 2019-12-24 | 2019-12-24 | Loudspeaker box |
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| CN (1) | CN111405432B (en) |
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| CN106982406A (en) * | 2017-01-22 | 2017-07-25 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206433106U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207354603U (en) * | 2017-09-28 | 2018-05-11 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108307279A (en) * | 2018-01-29 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN109495828A (en) * | 2018-12-31 | 2019-03-19 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| CN208638631U (en) * | 2018-08-03 | 2019-03-22 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070154049A1 (en) * | 2006-01-05 | 2007-07-05 | Igor Levitsky | Transducer, headphone and method for reducing noise |
| CN206602656U (en) * | 2017-03-21 | 2017-10-31 | 歌尔股份有限公司 | Loudspeaker module |
| CN207732958U (en) * | 2017-11-02 | 2018-08-14 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN208924403U (en) * | 2018-08-01 | 2019-05-31 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
-
2019
- 2019-12-24 CN CN201911350648.0A patent/CN111405432B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206433106U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN106982406A (en) * | 2017-01-22 | 2017-07-25 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207354603U (en) * | 2017-09-28 | 2018-05-11 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108307279A (en) * | 2018-01-29 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN208638631U (en) * | 2018-08-03 | 2019-03-22 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN109495828A (en) * | 2018-12-31 | 2019-03-19 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
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| CN111405432A (en) | 2020-07-10 |
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