CN102695104A - Cylindrical portable loudspeaker box - Google Patents
Cylindrical portable loudspeaker box Download PDFInfo
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- CN102695104A CN102695104A CN2012101270672A CN201210127067A CN102695104A CN 102695104 A CN102695104 A CN 102695104A CN 2012101270672 A CN2012101270672 A CN 2012101270672A CN 201210127067 A CN201210127067 A CN 201210127067A CN 102695104 A CN102695104 A CN 102695104A
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Abstract
A cylindrical portable loudspeaker box relates to the portable loudspeaker box used by clamping on a notebook computer or on a tablet computer. The portable loudspeaker box comprises a cylindrical loudspeaker box housing and two speakers fixed respectively at left and right cylindrical bottom positions of the loudspeaker box housing, wherein the loudspeaker box housing is provided with a clamping foot and at least one swinging-clamping dual-purpose foot, the clamping foot comprises a clamping foot support, an upper end of the clamping foot support is hinged with an upside of the loudspeaker box housing, a clamping spring is provided between the upper end of the clamping foot support and the loudspeaker box housing, a lower end of the clamping foot support surface facing the loudspeaker box is provided with a clamping foot sole which is made from flexible materials, the swinging-clamping dual-purpose foot is provided with a swinging-clamping dual-purpose foot sole which is made from the flexible materials, the swinging-clamping dual-purpose foot is fixed on a front side of the loudspeaker box housing, the back of a free surface of the swinging-clamping dual-purpose foot sole faces the front side of the loudspeaker box housing, and the free surface of the swinging-clamping dual-purpose foot sole is a concave arc cylindrical surface in left-right direction. The cylindrical portable loudspeaker box is advantaged in that surfaces of the notebook computer and the flat panel computer are not damaged, and the cylindrical portable loudspeaker box is not only applicable to static state use but also is applicable to mobile state use.
Description
Technical field
The present invention relates to the audio amplifier technical field, especially relate to and a kind ofly can be clipped in the portable loudspeaker box that uses on notebook computer and the panel computer.
Background technology
Because of its volume is little, in light weight, easy to carry, notebook computer and panel computer have become a kind of popular office and amusement equipment.Notebook computer and panel computer, operated by rotary motion has built-in speaker, but the tonequality of these built-in speakers is usually not fully up to expectations.In order to obtain better acoustical quality and enjoyment, people usually use external voice box to replace built-in speaker.But existing external voice box; Most can only being placed on the smooth supporting surface used; In case the field of employment lacks the flat support face that is fit to put external voice box, people just can't use external voice box to replace built-in speaker, and therefore there is the problem of applicable situation difference in such external voice box.
In on November 24th, 2010 bulletin, notification number is that the Chinese patent file that CN201657236U, name are called " notebook computer external voice box " discloses a kind of portable loudspeaker box that can be clipped in use; It includes the audio amplifier body; This audio amplifier body is Bao Changzhuan; The audio amplifier body is provided with spring clip, and the audio amplifier body also is hinged with two supports, and spring clip and two supports form the tripod fixed mount.Disclosure according to this patent specification; This notebook computer external voice box; Promptly can be placed on the smooth supporting surface and use through spring clip and two support formation tripod fixed mounts; Also can be clamped on the notebook computer and use, also can be stained with flexible glue and prevent damage that notebook computer or support are shown on the support with on the clamping face of spring clip simultaneously through spring clip.The problem that exists is: owing to only on the clamping face of spring clip, be stained with flexible glue; When this notebook computer external voice box is clamped in when using on the notebook computer through spring clip; Notebook computer and casing of loudspeaker box still have hard contact point; Can influence the performance of this audio amplifier audio on the one hand, the notebook computer surface exists by the danger of casing of loudspeaker box damage on the other hand, and the clip position of this audio amplifier and notebook computer is prone to be shifted because of vibration simultaneously; Therefore stablizing for the clip position that guarantees this audio amplifier and panel computer or notebook computer; Just need to strengthen the chucking power of spring clip, thereby increase manufacture difficulty, the manufacturing cost of audio amplifier, also influence convenience and comfortableness that audio amplifier uses simultaneously.
Summary of the invention
Technical problem to be solved by this invention provide a kind of can be clamped on notebook computer or the panel computer use; Clip position is reliable and stable; Not only be suitable for using under the inactive state, also be applicable under the mobile status and use and can be the hurtful portable loudspeaker box of notebook computer or panel computer surface.
The used technical scheme of the present invention is: a kind of cylindricality portable loudspeaker box, comprise casing of loudspeaker box and two loudspeaker that are separately fixed at position, two ends about the casing of loudspeaker box cylindricality of being cylindricality, and casing of loudspeaker box is provided with one and inserts and puts pin and the dual-purpose pin of at least one pendulum folder; Insert and put pin and comprise and insert and put foot support, the upper end and the casing of loudspeaker box upside that insert and put foot support are hinged, and are provided with fastening spring between this end and the casing of loudspeaker box, and the lower end that inserts and puts foot support is provided with by what flexible material was processed towards the one side of audio amplifier and inserts and puts sole; The dual-purpose pin of pendulum folder is provided with the pendulum of being processed by flexible material and presss from both sides dual-purpose sole, and the dual-purpose pin of pendulum folder is fixed on the leading flank of casing of loudspeaker box, and the Free Surface of the dual-purpose sole of pendulum folder is the leading flank of casing of loudspeaker box dorsad; The indent arc cylinder that the Free Surface of the dual-purpose sole of pendulum folder moves towards about being.
The present invention, casing of loudspeaker box is cylindricality, two loudspeaker, 180 degree be symmetrically distributed in the casing of loudspeaker box cylindricality about position, two ends, be more conducive to realize 360 degree audio sound fields.The present invention both can be placed on the smooth supporting surface through the dual-purpose pin of pendulum folder and use, and use the screen upper end that also can be clamped in panel computer or notebook computer through the cooperation that inserts and puts pin and the dual-purpose pin of pendulum folder.When being placed on the non-clamping user mode of using on the smooth supporting surface through the dual-purpose pin of pendulum folder; The Free Surface of the dual-purpose sole of pendulum folder rotates to the direction towards the flat support surface; The Free Surface each point evagination of the dual-purpose sole of pendulum folder is at casing of loudspeaker box and insert and put the foot support lower face of casing of loudspeaker box dorsad; The pendulum of being processed by flexible material presss from both sides dual-purpose sole to be played shock insulation and produces the sound that shakes with sound insulation box and placed side and rub to stablize the audio amplifier putting position with increasing; Help giving full play to the good audio of cylindricality portable loudspeaker box, and can not damage this flat support face.When the clamping user mode that use the screen upper end that is clamped in panel computer or notebook computer through the cooperation that inserts and puts pin and the dual-purpose pin of pendulum folder; Insert and put sole and rotate to Free Surface that inserts and puts sole and the relative basically position of Free Surface that pendulum presss from both sides dual-purpose sole, insert and put sole and make said convenient audio amplifier be clamped in the upper end of panel computer or notebook computer screen with the front and back side that the dual-purpose sole of pendulum folder lays respectively at panel computer or notebook computer screen.Process by flexible material because pendulum presss from both sides dual-purpose sole and inserts and puts sole, therefore said cylindricality portable loudspeaker box can not damage panel computer or notebook computer; Because the Free Surface of the dual-purpose sole of pendulum folder is an inner concave arc surface; As long as make the Free Surface inner concave arc surface upper limb of the dual-purpose sole of pendulum folder exceed panel computer during clamping or notebook computer is gone up the corner accordingly; The dual-purpose sole inner concave arc surface upper limb of pendulum folder bight can be projected into the place ahead on surface behind panel computer or the notebook computer screen and make the dual-purpose sole of pendulum folder be hooked on the upper end of panel computer or notebook computer screen; Said like this cylindricality portable loudspeaker box just can not depart from clip position because of vibration produces to glide; Therefore said cylindricality portable loudspeaker box and panel computer or notebook computer screen clip position are reliable and stable; Said cylindricality portable loudspeaker box not only is suitable for using under the inactive state, also is applicable under the mobile status and uses.
As preferably; Said casing of loudspeaker box is four prism type; Inserting and putting foot support is the U-shaped support adaptive with the four prism type of casing of loudspeaker box; The upper end that inserts and puts foot support is articulated in the middle part of casing of loudspeaker box upside, and the lower end that inserts and puts foot support is positioned at the casing of loudspeaker box lower side position, and correspondingly casing of loudspeaker box is provided with and holds the pinch cavity that inserts and puts pin; The number of the dual-purpose pin of pendulum folder is two, and two dual-purpose pin of pendulum folder lay respectively at the left and right sides that inserts and puts pin.This preferred version; Casing of loudspeaker box is four prism type, and inserting and putting foot support is the U-shaped support adaptive with the four prism type of casing of loudspeaker box, and casing of loudspeaker box is provided with and holds the pinch cavity that inserts and puts pin; When non-clamping user mode, inserting and putting pin is in the pinch cavity; The loudspeaker box structure compactness is attractive in appearance, and helps reducing the radial dimension of audio amplifier, improves the portability of audio amplifier.
As preferably, casing of loudspeaker box is constituted by two and half shells up and down, and correspondingly the pinch cavity is constituted by two and half cavitys up and down that lay respectively at this two and half shells place.This preferred version, casing of loudspeaker box is constituted by two halves shell up and down, is convenient to the connection that the manufacturing of casing of loudspeaker box is installed and inserted and put foot support and casing of loudspeaker box.
As preferably, be provided with the partition bone that separates audio amplifier left and right acoustic channels chamber in the middle part of the casing of loudspeaker box, cut off the middle opening that leaves conducting audio amplifier left and right acoustic channels chamber of bone.This preferred version can reduce the adverse effect of left and right acoustic channels tank-volumes manufacture deviation to the audio amplifier audio, helps improving the frequency response curve of audio amplifier.
As preferably, insert and put the underfooting end and be provided with one and be used to break into two with one's hands the breach of breaking into two with one's hands that inserts and puts pin.This preferred version is convenient to break into two with one's hands to let audio amplifier be clamped on the screen of panel computer or notebook computer inserting and putting pin.
As preferably, insert and put the sawtooth that moves towards about sole is provided with the Free Surface of putting the dual-purpose sole of folder.This preferred version; Insert and put the flexibility that set broached-tooth design on the Free Surface of sole and the dual-purpose sole of pendulum folder has increased foot plate surface; Improved the adaptability of respective foot bottom surface to panel computer or notebook computer screen surface; Help improving the fitting area of respective foot bottom surface and panel computer or notebook computer screen respective surfaces; Make that the clamping of said cylindricality portable loudspeaker box on panel computer or notebook computer screen is more firm; Especially the corresponding corner of panel computer or notebook computer screen can be charged in the sawtooth ditch on the Free Surface that inserts and puts sole or the dual-purpose sole of pendulum folder and play the effect of strengthening hook, can improve said cylindricality portable loudspeaker box and panel computer or notebook computer screen clip position reliability and stability when using under the mobile status greatly.
As preferably, the inner concave arc surface upper limb of the Free Surface of the dual-purpose sole of pendulum folder than its lower edge more prominent before.This preferred version; Help improving the operating efficiency that is clamped in said cylindricality portable loudspeaker box panel computer or notebook computer screen upper end, improve the reliability and stability that said cylindricality portable loudspeaker box is clamped in panel computer or notebook computer screen upper end.
In sum; The beneficial effect that brings of the present invention is: said cylindricality portable loudspeaker box can not damage the respective surfaces of panel computer and notebook computer screen; And the reliability and stability that said cylindricality portable loudspeaker box is clamped in panel computer or notebook computer screen upper end are high; Clip position can not be shifted because of vibrations, therefore under mobile status, can be clamped in panel computer or notebook computer screen upper end reliably yet and use, and said cylindricality portable loudspeaker box applicable situation is wide.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 3;
Fig. 5 is that the present invention is clamped in the sketch map that uses on the panel computer.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Present embodiment is the active audio amplifier that is provided with chargeable lithium cell.Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the present invention includes casing of loudspeaker box 1 and two loudspeaker 2 that are separately fixed at position, two ends about casing of loudspeaker box 1 cylindricality of being cylindricality; Casing of loudspeaker box 1 is four prism type; The adjacent side round-corner transition of quadrangular; Casing of loudspeaker box 1 is constituted by two and half shells 1.1,1.2 up and down, and casing of loudspeaker box 1 is provided with the reinforcement of strengthening casing of loudspeaker box housing rigidity and the structure that is used to install the audio amplifier parts that comprise battery 7, frequency divider and power amplifier; Two loudspeaker 2 respectively through be fixed in by high-strength engineering plastic ABS and gentle matter TPR combination of materials loudspeaker fixed support 5 that process, that have good shock-absorbing performance casing of loudspeaker box 1 about two bottoms; To avoid sound box the sound that shakes to occur; The shake outer rim of basin 2.1 of loudspeaker is positioned at outside the outer rim 5.1 of loudspeaker fixed support 5 0.35mm to 1mm, thereby effectively reduces high-frequency loss; Casing of loudspeaker box 1 middle part is provided with the partition bone that separates audio amplifier left and right acoustic channels chamber; Said partition bone comprises the following partition bone 1.2.1 on upward partition bone 1.1.1 that is located on casing of loudspeaker box 1 upper half shell 1.1 and the lower half shell 1.2 of being located at casing of loudspeaker box 1; Cut off bone 1.1.1, the middle opening that leaves conducting audio amplifier left and right acoustic channels chamber of 1.2.1 up and down; About A/F 1.9mm; Can not produce under the situation of resonance guaranteeing like this, reduce or avoid because of left and right acoustic channels cavity volume deviation to audio amplifier frequency response curve deleterious impact; Casing of loudspeaker box 1 is provided with one and inserts and puts pin 3 and the dual-purpose pin 4 of at least one pendulum folder; Inserting and putting pin 3 comprises and inserts and puts foot support 3.1; Insert and put foot support 3.1 and be the U-shaped support adaptive with the four prism type of casing of loudspeaker box 1; Casing of loudspeaker box 1 middle part is provided with and holds the pinch cavity 1.3 that inserts and puts pin 3, and the pinch cavity is constituted by two and half cavity 1.3.1, the 1.3.2 up and down that lay respectively at this two and half shells place, and the left and right sides of first cavity 1.3.1 upper end is fixed with one respectively and inserts and puts pin hinged seat 1.4; The upper end that inserts and puts foot support 3.1 through with insert and put the pin hinged seat 1.4 hinged middle parts that are articulated in casing of loudspeaker box 1 upside; And be provided with fastening spring 6 between this end and the casing of loudspeaker box 1; Present embodiment fastening spring 6 is a torsion spring, and fastening spring 6 provides and is clamped in the present invention panel computer 8 upper ends and is received into clamping pin 3 elastic force of 1.3 li of pinch cavitys; When clamping pin 3 is accommodated in 1.3 li of pinch cavitys; The lower end that inserts and puts foot support 3.1 is positioned at casing of loudspeaker box 1 lower side position; Promptly be positioned at second cavity 1.3.2 place of pinch cavity 1.3; The lower end that inserts and puts foot support 3.1 is provided with by what flexible material was processed towards the one side of audio amplifier and inserts and puts sole 3.2, and present embodiment inserts and puts sole 3.2, and to adopt hardness be that the silica gel of 35 degree is processed, insert and put middle part, pin 3 lower ends be provided with one be used to break into two with one's hands insert and put pin break breach 3.3 into two with one's hands; The dual-purpose pin 4 of pendulum folder is fixed on the leading flank of casing of loudspeaker box 1; The number of the dual-purpose pin 4 of present embodiment pendulum folder is two; Two dual-purpose pin 4 of pendulum folder lay respectively at the left and right sides that inserts and puts pin 3; The dual-purpose pin 4 of pendulum folder is provided with the pendulum of being processed by flexible material and presss from both sides dual-purpose sole, and the Free Surface of the dual-purpose sole of pendulum folder is the leading flank of casing of loudspeaker box 1 dorsad; The Free Surface of the dual-purpose sole of pendulum folder be about the indent arc cylinder of trend, the dual-purpose pin 4 of present embodiment pendulum folder is that 35 degree silica gel are processed and are made into integration by hardness, the inner concave arc surface upper limb of the Free Surface of the dual-purpose sole of pendulum folder than its lower edge more prominent before; In addition, insert and put the sawtooth that moves towards about sole 3.2 is provided with the Free Surface of putting the dual-purpose sole of folder.
The present invention; When being placed on the non-clamping user mode of using on the smooth supporting surface through the dual-purpose pin of pendulum folder; The Free Surface of the dual-purpose sole of pendulum folder rotates to towards surface-supported direction from the leading flank of casing of loudspeaker box dorsad shown in Figure 1 direction forward; Clamping pin 3 is accommodated in 1.3 li of pinch cavitys; The Free Surface each point evagination of the dual-purpose sole of pendulum folder insert and put foot support 3.1 dorsad casing of loudspeaker box surface and casing of loudspeaker box respective surfaces below; The pendulum of being processed by flexible material presss from both sides dual-purpose sole to be played shock insulation and produces the sound that shakes with sound insulation box and placed side and stablize audio amplifier with increasing to rub, and helps giving full play to the good audio of cylindricality portable loudspeaker box, and can not damage supporting surface.As shown in Figure 5; When the clamping user mode that use the upper end that is clamped in panel computer 8 through the cooperation that inserts and puts pin 3 and the dual-purpose pin 4 of pendulum folder; Break into two with one's hands and insert and put pin 3 through breaking breach 3.3 into two with one's hands; Make and insert and put sole 3.2 and rotate to the Free Surface that inserts and puts sole 3.2 and the relative basically position of Free Surface of the dual-purpose sole 4 of pendulum folder around inserting and putting foot support 3.1 hinged end with casing of loudspeaker box 1 with inserting and putting pin 3; Inserting and putting sole 3.1 lays respectively at the front and back side of panel computer 8 and makes said convenient audio amplifier be clamped in the upper end of panel computer 8 with the dual-purpose sole of pendulum folder; Since the dual-purpose sole of pendulum folder with insert and put sole 3.1 and process by flexible material, therefore said cylindricality portable loudspeaker box can not damage panel computer 8; Because the Free Surface of the dual-purpose sole of pendulum folder is an inner concave arc surface; The Free Surface inner concave arc surface upper limb of the dual-purpose sole of pendulum folder exceeds the last corner of panel computer or notebook computer rear side during clamping; The dual-purpose sole inner concave arc surface upper limb of pendulum folder bight is given prominence to the place ahead on surface behind panel computer and is made the dual-purpose sole of pendulum folder be hooked on panel computer; Said like this cylindricality portable loudspeaker box departs from clip position with regard to being difficult for because of vibration produces to glide; Therefore even if also can make said cylindricality portable loudspeaker box stably be clamped in panel computer 8 upper ends in using and can not depart from clip position moving because of the vibrations landing; Said cylindricality portable loudspeaker box not only is suitable for being suitable under the inactive state, also is applicable under the mobile status and uses.
The specific embodiment of the above is merely preferred implementation of the present invention, is not to limit practical implementation scope of the present invention with this.All shapes according to the present invention, the equivalence that structure is done change and ought to all be included in protection scope of the present invention.
Claims (7)
1. cylindricality portable loudspeaker box; Comprise casing of loudspeaker box (1) and two loudspeaker (2) that are separately fixed at position, two ends about casing of loudspeaker box (1) cylindricality of being cylindricality, it is characterized in that: casing of loudspeaker box (1) is provided with one and inserts and puts pin (3) and at least one pendulum folder dual-purpose pin (4); Inserting and putting pin (3) comprises and inserts and puts foot support (3.1); The upper end and casing of loudspeaker box (1) upside that insert and put foot support (3.1) are hinged; And be provided with fastening spring between this end and the casing of loudspeaker box, the lower end that inserts and puts foot support (3.1) is provided with by what flexible material was processed towards the one side of audio amplifier and inserts and puts sole (3.2); The pendulum dual-purpose pin of folder (4) is provided with the pendulum of being processed by flexible material and presss from both sides dual-purpose sole, and the pendulum dual-purpose pin of folder (4) is fixed on the leading flank of casing of loudspeaker box (1), and the Free Surface of the dual-purpose sole of pendulum folder is the leading flank of casing of loudspeaker box (1) dorsad; The indent arc cylinder that the Free Surface of the dual-purpose sole of pendulum folder moves towards about being.
2. cylindricality portable loudspeaker box according to claim 1 is characterized in that: said casing of loudspeaker box (1) is four prism type; Inserting and putting foot support (3.1) is the U-shaped support adaptive with the four prism type of casing of loudspeaker box (1); The upper end that inserts and puts foot support (3.1) is articulated in the middle part of casing of loudspeaker box (1) upside; The lower end that inserts and puts foot support (3.1) is positioned at casing of loudspeaker box (1) lower side position, and correspondingly casing of loudspeaker box (1) is provided with and holds the pinch cavity (1.3) that inserts and puts pin (3); The number of the pendulum dual-purpose pin of folder (4) is two, and two pendulum dual-purpose pin of folder (4) lay respectively at the left and right sides that inserts and puts pin (3).
3. cylindricality portable loudspeaker box according to claim 2; It is characterized in that: casing of loudspeaker box (1) is constituted by two and half shells (1.1,1.2) up and down, and correspondingly pinch cavity (1.3) is constituted by two and half cavitys up and down (1.3.1,1.3.2) that lay respectively at this two and half shells place.
4. cylindricality portable loudspeaker box according to claim 2 is characterized in that: casing of loudspeaker box (1) middle part is provided with the partition bone that separates audio amplifier left and right acoustic channels chamber, cuts off the middle opening that leaves conducting audio amplifier left and right acoustic channels chamber of bone.
5. cylindricality portable loudspeaker box according to claim 2 is characterized in that: insert and put pin (3) lower end be provided with one be used to break into two with one's hands insert and put pin break breach (3.3) into two with one's hands.
6. according to each described cylindricality portable loudspeaker box of claim 1 to 5, it is characterized in that: the sawtooth that inserts and puts sole (3.2) and put the Free Surface that presss from both sides dual-purpose sole trend about being provided with.
7. according to each described cylindricality portable loudspeaker box of claim 1 to 5, it is characterized in that: before the inner concave arc surface upper limb of the Free Surface of the dual-purpose sole of pendulum folder is more dashed forward than its lower edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127067.2A CN102695104B (en) | 2012-04-26 | 2012-04-26 | Cylindrical portable loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127067.2A CN102695104B (en) | 2012-04-26 | 2012-04-26 | Cylindrical portable loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102695104A true CN102695104A (en) | 2012-09-26 |
| CN102695104B CN102695104B (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210127067.2A Expired - Fee Related CN102695104B (en) | 2012-04-26 | 2012-04-26 | Cylindrical portable loudspeaker box |
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| CN (1) | CN102695104B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664325Y (en) * | 2003-08-05 | 2004-12-15 | 李波 | Conveniently placing sound box |
| CN2912176Y (en) * | 2006-06-08 | 2007-06-13 | 中北大学 | Mobile loudspeaker box |
| CN201185481Y (en) * | 2008-02-22 | 2009-01-21 | 深圳市泛蓝科技有限公司 | Video voice chat numeral acoustic enclosure |
| CN201657236U (en) * | 2010-04-20 | 2010-11-24 | 东莞耳神电声科技有限公司 | External sound box for notebook computer |
| CN102361179A (en) * | 2011-09-23 | 2012-02-22 | 四川省电力公司乐山电业局 | Improved portable grounding wire |
| CN202587299U (en) * | 2012-04-26 | 2012-12-05 | 浙江恒科实业有限公司 | Portable sound box |
-
2012
- 2012-04-26 CN CN201210127067.2A patent/CN102695104B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664325Y (en) * | 2003-08-05 | 2004-12-15 | 李波 | Conveniently placing sound box |
| CN2912176Y (en) * | 2006-06-08 | 2007-06-13 | 中北大学 | Mobile loudspeaker box |
| CN201185481Y (en) * | 2008-02-22 | 2009-01-21 | 深圳市泛蓝科技有限公司 | Video voice chat numeral acoustic enclosure |
| CN201657236U (en) * | 2010-04-20 | 2010-11-24 | 东莞耳神电声科技有限公司 | External sound box for notebook computer |
| CN102361179A (en) * | 2011-09-23 | 2012-02-22 | 四川省电力公司乐山电业局 | Improved portable grounding wire |
| CN202587299U (en) * | 2012-04-26 | 2012-12-05 | 浙江恒科实业有限公司 | Portable sound box |
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| Publication number | Publication date |
|---|---|
| CN102695104B (en) | 2014-12-24 |
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