CN203708464U - Loudspeaker module group - Google Patents
Loudspeaker module group Download PDFInfo
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- CN203708464U CN203708464U CN201320733293.5U CN201320733293U CN203708464U CN 203708464 U CN203708464 U CN 203708464U CN 201320733293 U CN201320733293 U CN 201320733293U CN 203708464 U CN203708464 U CN 203708464U
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- operatic tunes
- mesochite
- phase
- loudspeaker monomer
- loud speaker
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Abstract
The utility model discloses a loudspeaker module group. The loudspeaker module group comprises a loudspeaker single body and a peripheral frame, wherein a front sound chamber and the rear sound chamber form between the loudspeaker single body and the peripheral frame, the front sound chamber is disposed close to an upper shell, and the rear sound chamber is disposed close to a lower shell; a sound hole which is communicated with the front sound chamber is disposed on the peripheral frame, and the sound wave radiated by one side, which is close to the front sound chamber, of a vibration diaphragm of the loudspeaker single body, is radiated to the external part through the front sound chamber and the sound hole; and a phase-inversion tube is disposed at the internal part of the peripheral frame, one end of the phase-inversion tube is communicated with the rear sound chamber, the other end of the phase-inversion tube is communicated with the front sound chamber, and the sound wave in the rear sound chamber is radiated to the external part from the sound hole through the phase-inversion tube and the front sound chamber. The loudspeaker module group is provided with the phase-inversion tube which is communicated with the rear sound chamber, so that the low frequency sound effect of the product is improved distinctly; the loudspeaker module group is capable of achieving heat radiation and air pressure balancing of the rear sound chamber through the phase-inversion tube; and the front sound chamber and the sound hole are shared by the phase-inversion tube and the loudspeaker, so that the increase of the size of the loudspeaker single body is facilitated, and the improvement of the acoustics performance of the product is facilitated.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of loud speaker module.
Background technology
In prior art, loud speaker module comprises loudspeaker monomer and accommodates the peripheral frame of fixing loudspeaker monomer, between described loudspeaker monomer and described peripheral frame, form the front operatic tunes and the rear operatic tunes, the front operatic tunes and the rear operatic tunes are spaced structure, the front operatic tunes is communicated with the sound hole of loud speaker module, and the rear operatic tunes is the structure of sealing.On the shell of traditional structure loud speaker module, be typically provided with the leak holes of the operatic tunes and extraneous small-bore after being communicated with, leak holes is for heat radiation and balance acoustic pressure, the heat producing in process due to loudspeaker monomer work is a lot, the heat that the leak holes of this small-bore is difficult to loudspeaker monomer to produce comes out completely, affects the useful life of loud speaker module.
At present the low frequency sound effect of loud speaker module haves much room for improvement, and the bass effect of loud speaker module is mainly by the volume control of the rear operatic tunes, and when the volume of the rear operatic tunes is larger, bass effect is better.But electronic product slimming increasingly at present, microminiaturization, the size of loud speaker module is also restricted, and therefore, cannot carry out by increasing the volume of the rear operatic tunes low frequency of extended products.
In addition, the large-scale audio amplifier in traditional structure can promote by phase-reversing tube is set the bass effect of audio amplifier, but the audio amplifier of this structure, and the sound hole of the outlet sound mouth that phase-reversing tube is in communication with the outside and audio amplifier point is arranged.Because limited being difficult to of size of loud speaker module directly applies to this phase-reversing tube structure of applying in audio amplifier in loud speaker module, and the structure that sound hole is set respectively due to the limited this phase-reversing tube of size of loud speaker module and loudspeaker monomer can take too much space, thereby can reduce the size of loudspeaker monomer.
Therefore, be necessary the loud speaker module of this structure to improve, to avoid above-mentioned defect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of loud speaker module, can make loud speaker module effectively dispel the heat, the effectively low frequency of extended products, and certain in the situation that, the inner space that can save loud speaker module is conducive to increase the size of loudspeaker monomer in loud speaker module sound hole site and size.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of loud speaker module, comprise loudspeaker monomer, and accommodate the peripheral frame of fixing described loudspeaker monomer, described peripheral frame comprises upper casing and lower casing, between described loudspeaker monomer and described peripheral frame, form the front operatic tunes and the rear operatic tunes, the described front operatic tunes is near described upper casing setting, and the described rear operatic tunes is near described lower casing setting; Described peripheral frame is provided with the sound hole being communicated with the described front operatic tunes, and wherein, the vibrating diaphragm of described loudspeaker monomer is radiated the external world near the sound wave of the described front operatic tunes one side radiation through described front operatic tunes harmony hole; Described peripheral frame inside is also provided with phase-reversing tube, and one end of described phase-reversing tube is communicated with the described rear operatic tunes, and the other end is communicated with the described front operatic tunes, and the sound wave in the described rear operatic tunes is radiated the external world from described sound hole after described phase-reversing tube and the described front operatic tunes.
In addition, preferred scheme is that described peripheral frame also comprises the mesochite being incorporated between described upper casing and lower casing; Described mesochite comprises the lateral wall of being combined with upper casing and lower casing, is arranged at the madial wall of mesochite inside, and is arranged at the spaced walls of described madial wall bottom; Described madial wall and described lateral wall form the passage for sonic transmissions jointly; One end of described passage is communicated with the described rear operatic tunes, and the other end of described passage extends to the described front operatic tunes; Described phase-reversing tube is surrounded jointly by madial wall, spaced walls, lateral wall and the described upper casing of described mesochite.
In addition, preferred scheme is on described upper casing, just the position of described mesochite madial wall to be provided with the sealed muscle position of the roof setting of protruding described mesochite; The top of the madial wall of described mesochite is just provided with to described sealed muscle bit position the accepting groove that material forms, and described sealed muscle position is fastened in described accepting groove, and described sealed muscle position and described accepting groove gluing are fixed.
In addition, preferably scheme is, described sealed muscle position is welding muscle, and the madial wall of described sealed muscle position and described mesochite is welded and fixed.
In addition, preferred scheme is, described loudspeaker monomer is rectangular configuration, described phonate hole is arranged at four bights of described loudspeaker monomer bottom, described lower casing is just provided with support portion to the position of described loudspeaker monomer bottom centre, and described support portion is that the cross phonate hole that prevents loudspeaker monomer bottom is stopped up by lower casing.
In addition, preferably scheme is, described loudspeaker monomer, the spaced walls of described mesochite, the lateral wall of described mesochite, and the described rear operatic tunes of the common formation of described lower casing; The center of described madial wall is provided with the openend that runs through described mesochite, and described openend is the opening that described phase-reversing tube is communicated with the described rear operatic tunes, and the sound wave in the described rear operatic tunes enters described phase-reversing tube by described openend.
In addition, preferred scheme is that described mesochite comprises the fixed part of accommodating fixing described loudspeaker monomer; Described loudspeaker monomer and described upper casing, mesochite surround the front operatic tunes of described loud speaker module jointly.
In addition, preferred scheme is, in the number range of the ratio of the described rear operatic tunes and the resonance frequency Fb of phase-reversing tube and the resonance frequency F0 of described monomer between 1/3～1.4.
Adopt after technique scheme, compared with traditional structure, loud speaker module of the present utility model is provided with the phase-reversing tube that is communicated with the rear operatic tunes, can strengthen significantly the low frequency sound effect of product, improves the bass effect of loud speaker module; Because phase-reversing tube is communicated with the rear operatic tunes with extraneous, make loud speaker module realize the rear heat radiation of the operatic tunes and the equilibrium of air pressure by phase-reversing tube; In addition,, due to phase-reversing tube and the shared front operatic tunes harmony of loudspeaker monomer hole, the space that therefore can save loud speaker module internal is conducive to the increase of loudspeaker monomer size, thereby is conducive to improve the acoustical behavior of product.
Accompanying drawing explanation
By below in conjunction with accompanying drawing, the utility model being described, above-mentioned feature of the present utility model and technological merit will become apparent and easily understand.
Fig. 1 is the stereo decomposing structural representation one of the utility model loud speaker module;
Fig. 2 is the perspective view after the loudspeaker monomer of the utility model loud speaker module is combined with mesochite;
Fig. 3 is the three-dimensional schematic diagram of the utility model loud speaker module;
Fig. 4 is the perspective view two of the utility model loud speaker module;
Fig. 5 is the utility model loud speaker module lower casing, and the perspective view of mesochite after being combined with loudspeaker monomer;
Fig. 6 is the upper casing of the utility model loud speaker module, the stereo decomposing structural representation of mesochite.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to further detailed description.
As shown in Figures 1 to 6, loud speaker module comprises loudspeaker monomer 2 and accommodates the peripheral frame of fixing loudspeaker monomer 2, the present embodiment peripheral frame comprises upper casing 11, mesochite 12 and lower casing 13, wherein between loudspeaker monomer 2 and peripheral frame, forms the front operatic tunes and the rear operatic tunes; The front operatic tunes of the present embodiment is formed jointly by upper casing 11, mesochite 12 and loudspeaker monomer 2, and the rear operatic tunes is formed jointly by lower casing 13, mesochite 12 and loudspeaker monomer 2.In the concrete structure figure of loudspeaker monomer 2, do not show, involving vibrations system and magnetic circuit system, vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of vibrating diaphragm one side, magnetic circuit system comprises washer, magnet and the basin frame of combination successively, magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is connected stressed up-down vibration in the magnetic field forming at magnetic circuit system after the signal of telecommunication, further drives vibrating diaphragm generation of vibration sound.Loud speaker module also comprises the sound hole 10 being in communication with the outside, and the sound that in loudspeaker monomer 2, vibrating diaphragm produces is radiated the external world by the front operatic tunes and sound hole 10.Loudspeaker monomer 2 vibrating diaphragms deviate from the front operatic tunes one side and are communicated with the rear operatic tunes, and the present embodiment also comprises the phase-reversing tube being communicated with the rear operatic tunes, and phase-reversing tube is formed jointly by mesochite 12 and upper casing 11; The present embodiment phase-reversing tube is also connected with the front operatic tunes, to expand the low frequency of loud speaker module, strengthens the bass effect of loud speaker module.
As shown in Figure 1 and Figure 4, the mesochite 12 of loud speaker module comprises the fixed part 121 of accommodating fixing loudspeaker monomer 2, the fixing loudspeaker monomer 2 of fixed part 121 and make loudspeaker monomer 2 vibrating diaphragm front sides and sound wave that rear side produces is separated completely.The periphery of mesochite 12 has lateral wall 123, and lateral wall 123 and upper casing 11 and lower casing 12 secure bond, for the protection of the internal structure of loud speaker module; The inner side of mesochite 12 is provided with madial wall 122, a spiral helicine passage of madial wall 122 and lateral wall 123 common formation; The bottom of madial wall 122 is also provided with spaced walls 124, and spaced walls 124 arranges perpendicular to madial wall 122, can realize the adjustment to phase-reversing tube internal diameter size by the position of adjusting spaced walls in the vertical direction.In addition, be also provided with the openend 120 that runs through mesochite 12 in the inner side of madial wall 122, openend 120 is the opening forming in spaced walls 124, and as shown in Figure 4, this openend 120 is the opening that phase-reversing tube is communicated with the rear operatic tunes.
As shown in Fig. 1 and Fig. 6 are common, on upper casing 11, just the position of madial wall 122 is provided with to sealed muscle position 110, the structure that sealed muscle position 110 arranges for protruding from the downside of upper casing 11, on the madial wall 122 of mesochite 12, be provided with the accepting groove 1220 of the depression of material formation corresponding to the position of sealed muscle position 110, the radial width of accepting groove 1220 is slightly larger than the radial width of sealed muscle position 110, sealed muscle position 110 is snapped in accepting groove 1220 and gluing sealing realizes madial wall 122 and is combined with the sealing of upper casing 11, prevents the sealing of phase-reversing tube gas leakage assurance phase-reversing tube.It should be noted that, the sealing between upper casing 11 and madial wall 122 is in conjunction with being not limited to this mode, and sealed muscle position 110 can be also welding muscle, and the welding muscle on upper casing 11 and madial wall 122 are by the mode secure bond of ultrasonic bonding.Between the lateral wall 123 of the edge of upper casing 11 and mesochite 12, can seal by the mode of gluing or ultrasonic bonding fixingly, the present embodiment is gluing sealing.
The sealed muscle position 110 of upper casing 11 and the madial wall 122 of mesochite 12, and after the lateral wall 123 difference secure bond of the edge of upper casing 11 and mesochite 12, form phase-reversing tube of the present utility model; Be the madial wall 122 of the utility model phase-reversing tube by mesochite 12, the spaced walls 124 of mesochite 12, and the roof 110 of upper casing 11 forms jointly.Equally, the structure of phase-reversing tube can have other distortion, and while being greater than the degree of depth of accepting groove 1220 as the height of sealed muscle position 110, phase-reversing tube also comprises the part sealed muscle position between the roof of upper casing 11 and madial wall 122.
As shown in Fig. 4 and Fig. 5 are common, loudspeaker monomer 2 is rectangular configuration, four bights of rectangular speaker monomer 2 are provided with phonate hole 21, on lower casing 13, just the position at loudspeaker monomer 2 centers is provided with to support portion 131, support portion 131 is cross structure, can avoid the phonate hole 21 of loudspeaker monomer 2 to stop up, and the support speaker monomer 2 that cross structure can be stable.In addition, loudspeaker monomer 2 is just also provided with foam 22 to a side of lower casing 13, and foam 22 can play cushioning effect, prevents that loudspeaker monomer 2 is damaged in the time the situation such as falling.Wherein, the diapire of loudspeaker monomer 2, spaced walls 124, lateral wall 123 and lower casing 13 forms the rear operatic tunes of loud speaker module jointly.The sound wave of the vibrating diaphragm rear side radiation of loudspeaker monomer 2 is transferred in the rear operatic tunes by phonate hole 21, and the sound wave in the rear operatic tunes is transferred in phase-reversing tube by openend 120.
As shown in Figure 1 to Figure 3, the sound hole 10 of the present embodiment loud speaker module is positioned at side, as shown in Figure 3, is also positioned at and is arranged at the just side to loudspeaker monomer 2 but be not limited to this position, and loudspeaker monomer 2 secure bond are in the fixed part 121 of mesochite 12.Madial wall 122, lateral wall 123, loudspeaker monomer 2 and the upper casing 11 of loudspeaker monomer 2 both sides surrounds the front operatic tunes of loud speaker module jointly, and the front operatic tunes of loud speaker module is connected with sound hole 10.The acoustic irradiation that vibrating diaphragm front side in loudspeaker monomer 2 produces is in the front operatic tunes, sound wave in the front operatic tunes is radiated the external world by sound hole 10, the vibrating diaphragm that is loudspeaker monomer 2 is radiated the external world near the sound wave of the front operatic tunes one side generation by path S1, as shown in Figures 2 and 3.As shown in Figure 2, the phase-reversing tube forming between the madial wall 122 of mesochite 12 and lateral wall 123 forms another openend of phase-reversing tube at the edge of loudspeaker monomer 2, and this openend is communicated with the front operatic tunes of loud speaker module.After loud speaker module, the sound wave of the operatic tunes enters in phase-reversing tube by openend 120, sound wave enters the front operatic tunes through after phase-reversing tube by the openend of the front operatic tunes one side of being arranged in of phase-reversing tube, then be radiated the external world by the front operatic tunes, the sound wave that is the radiation of vibrating diaphragm rear side is radiated the external world by path S2, as shown in Figures 2 and 3, be that before the utility model, the sound wave in the operatic tunes is radiated the external world by path S1 through sound hole 10, sound wave in phase-reversing tube is radiated the external world by path S2 through behind sound hole 10, operatic tunes harmony hole 10 before phase-reversing tube shares.This structure, in the case of the position in the sound hole of loud speaker module and size certain, the structure that this phase-reversing tube is shared sound hole does not need again the two parts that make sound hole 10 form space to be cut apart in sound hole, thereby is conducive to the internal diameter in increase sound hole 10; In addition, the structure that this phase-reversing tube is shared the front operatic tunes need to not arrange the structure being communicated with sound hole 10 in loud speaker module, thereby can increase the installing space of loud speaker module, is conducive to increase the size of loudspeaker monomer 2.
In addition, the utility model loud speaker module is realized and being electrically connected by cable line with terminal electronics, does not show that cable line, the downside of mesochite 12 are provided with the perforate 125 for the outlet of cable line, as shown in Figure 3 in the utility model accompanying drawing.In the peripheral frame of the utility model loud speaker module, do not arrange be communicated with after the operatic tunes and extraneous leak holes.Before the present embodiment, the operatic tunes is the cavity forming after upper casing 11 and mesochite 12 and loudspeaker monomer 2 secure bond, the rear operatic tunes is the cavity forming after mesochite 12, lower casing 13 and loudspeaker monomer 2 secure bond, and wherein accompanying drawing of the present utility model has only been shown the internal structure of loud speaker module.
The utility model loud speaker module is provided with the phase-reversing tube being communicated with the rear operatic tunes, phase-reversing tube is in communication with the outside, because the aperture of the aperture ratio traditional structure leak holes of phase-reversing tube is large, therefore can make loud speaker module there is good heat dispersion, guarantee the useful life of product; And because phase-reversing tube is in communication with the outside the effect that therefore can play balance acoustic pressure; Therefore, arrange on lower casing 13 after phase-reversing tube or mesochite 12, just do not need to arrange be communicated with after the operatic tunes and extraneous leak holes.This effectively low frequency of extended products of structure that phase-reversing tube is set in loud speaker module, the bass effect of improving product.In addition, in the case of the position in sound hole 10 and size are definite, this phase-reversing tube share before the structure in operatic tunes harmony hole 10, internal diameter that can increase sound hole is conducive to effective radiation of sound wave, can increase the size of loudspeaker monomer, be conducive to improve the acoustical behavior of product.
The utility model can strengthen the bass effect of low frequency special frequency channel significantly, can realize the adjustment to Fb by adjusting the size of back cavity volume and the size of phase-reversing tube, and wherein Fb is the resonance frequency of the rear operatic tunes and phase-reversing tube.The adjustment of relational implementation that can be by adjusting Fb and F0 to low frequency special frequency channel, in the number range of the ratio that wherein Fb and F0 meet following relation: Fb and F0 between 1/3 to 1.4, and realizes the enhancing to required frequency range, the resonance frequency that wherein F0 is monomer.
Under above-mentioned instruction of the present utility model; those skilled in the art can carry out other improvement and distortion on the basis of above-described embodiment; and these improvement and distortion; all drop in protection range of the present utility model; those skilled in the art should be understood that; above-mentioned specific descriptions are just better explained the purpose of this utility model, and protection range of the present utility model is limited by claim and equivalent thereof.
Claims (8)
1. a loud speaker module, comprise loudspeaker monomer, and accommodate the peripheral frame of fixing described loudspeaker monomer, described peripheral frame comprises upper casing and lower casing, between described loudspeaker monomer and described peripheral frame, form the front operatic tunes and the rear operatic tunes, the described front operatic tunes is near described upper casing setting, and the described rear operatic tunes is near described lower casing setting; Described peripheral frame is provided with the sound hole being communicated with the described front operatic tunes, it is characterized in that,
The vibrating diaphragm of described loudspeaker monomer is radiated the external world near the sound wave of the described front operatic tunes one side radiation through described front operatic tunes harmony hole;
Described peripheral frame inside is also provided with phase-reversing tube, and one end of described phase-reversing tube is communicated with the described rear operatic tunes, and the other end is communicated with the described front operatic tunes, and the sound wave in the described rear operatic tunes is radiated the external world from described sound hole after described phase-reversing tube and the described front operatic tunes.
2. loud speaker module according to claim 1, is characterized in that,
Described peripheral frame also comprises the mesochite being incorporated between described upper casing and lower casing;
Described mesochite comprises the lateral wall of being combined with upper casing and lower casing, is arranged at the madial wall of mesochite inside, and is arranged at the spaced walls of described madial wall bottom; Described madial wall and described lateral wall form the passage for sonic transmissions jointly; One end of described passage is communicated with the described rear operatic tunes, and the other end of described passage extends to the described front operatic tunes;
Described phase-reversing tube is surrounded jointly by madial wall, spaced walls, lateral wall and the described upper casing of described mesochite.
3. loud speaker module according to claim 2, is characterized in that, just the position of described mesochite madial wall is provided with the sealed muscle position of the roof setting of protruding described mesochite on described upper casing;
The top of the madial wall of described mesochite is just provided with to described sealed muscle bit position the accepting groove that material forms, and described sealed muscle position is fastened in described accepting groove, and described sealed muscle position and described accepting groove gluing are fixed.
4. loud speaker module according to claim 3, is characterized in that, described sealed muscle position is welding muscle, and the madial wall of described sealed muscle position and described mesochite is welded and fixed.
5. loud speaker module according to claim 2, it is characterized in that, described loudspeaker monomer is rectangular configuration, the phonate hole of described loudspeaker monomer is arranged at four bights of described loudspeaker monomer bottom, described lower casing is just provided with support portion to the position of described loudspeaker monomer bottom centre, and described support portion is that the cross phonate hole that prevents loudspeaker monomer bottom is stopped up by lower casing.
6. loud speaker module according to claim 5, is characterized in that, described loudspeaker monomer, the spaced walls of described mesochite, the lateral wall of described mesochite, and the described rear operatic tunes of the common formation of described lower casing;
The center of described madial wall is provided with the openend that runs through described mesochite, and described openend is the opening that described phase-reversing tube is communicated with the described rear operatic tunes, and the sound wave in the described rear operatic tunes enters described phase-reversing tube by described openend.
7. loud speaker module according to claim 2, is characterized in that, described mesochite comprises the fixed part of accommodating fixing described loudspeaker monomer; Described loudspeaker monomer and described upper casing, mesochite surround the front operatic tunes of described loud speaker module jointly.
8. according to the loud speaker module described in the arbitrary claim of claim 1 to 7, it is characterized in that, in the number range of the ratio of the described rear operatic tunes and the resonance frequency Fb of phase-reversing tube and the resonance frequency F0 of described monomer between 1/3～1.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733293.5U CN203708464U (en) | 2013-11-18 | 2013-11-18 | Loudspeaker module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733293.5U CN203708464U (en) | 2013-11-18 | 2013-11-18 | Loudspeaker module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708464U true CN203708464U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733293.5U Withdrawn - After Issue CN203708464U (en) | 2013-11-18 | 2013-11-18 | Loudspeaker module group |
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| Country | Link |
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| CN (1) | CN203708464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686550A (en) * | 2013-11-18 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker module group |
| WO2019046196A1 (en) * | 2017-08-30 | 2019-03-07 | Bose Corporation | Loudspeaker with deflector at an acoustic port exit |
-
2013
- 2013-11-18 CN CN201320733293.5U patent/CN203708464U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686550A (en) * | 2013-11-18 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker module group |
| US9756416B2 (en) | 2013-11-18 | 2017-09-05 | Goertek Inc. | Loudspeaker module |
| CN103686550B (en) * | 2013-11-18 | 2017-09-29 | 歌尔股份有限公司 | Loudspeaker module |
| WO2019046196A1 (en) * | 2017-08-30 | 2019-03-07 | Bose Corporation | Loudspeaker with deflector at an acoustic port exit |
| US10405084B2 (en) | 2017-08-30 | 2019-09-03 | Bose Corporation | Loudspeaker with deflector at a port exit |
| CN111034218A (en) * | 2017-08-30 | 2020-04-17 | 伯斯有限公司 | Loudspeaker with deflector at outlet of acoustic port |
| CN111034218B (en) * | 2017-08-30 | 2021-04-16 | 伯斯有限公司 | Loudspeaker with deflector at outlet of acoustic port |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140709 Effective date of abandoning: 20170929 |
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| AV01 | Patent right actively abandoned |