CN102811396A - Sound box - Google Patents
Sound box Download PDFInfo
- Publication number
- CN102811396A CN102811396A CN 201110349609 CN201110349609A CN102811396A CN 102811396 A CN102811396 A CN 102811396A CN 201110349609 CN201110349609 CN 201110349609 CN 201110349609 A CN201110349609 A CN 201110349609A CN 102811396 A CN102811396 A CN 102811396A
- Authority
- CN
- China
- Prior art keywords
- hole
- loam cake
- casing
- audio amplifier
- lower cover
- 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.)
- Pending
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a sound box, comprising a box body and a loudspeaker, wherein the box body comprises a lower cover and an upper cover; the upper cover and the lower cover are combined and a sound cavity is formed in the box body; the loudspeaker comprises a vibration unit and a magnetic path unit which is used for driving the vibration unit to move; the lower cover is provided with a first through hole and the upper cover is provided with a second through hole corresponding to the first through hole; the loudspeaker is arranged in the box body and is arranged by corresponding to the first through hole and the second through hole; the magnetic path unit of the loudspeaker is arranged in the first through hole in a penetrating manner and is fixedly connected with the lower cover; and the vibration unit of the loudspeaker is arranged in the second through hole in the penetrating manner and is fixedly connected with the upper cover. The magnetic path unit and the vibration unit are respectively arranged on the lower cover and the upper cover of the box body in the penetrating manner, so that the loudspeaker has a thinner thickness in an axial direction.
Description
Technical field
The present invention relates to a kind of audio amplifier, relate in particular to a kind of audio amplifier that is used in the electronic installation.
Background technology
In portable electron device such as notebook computer, mobile phone, handheld device, portion is provided with an audio amplifier and comes sound is carried out outer putting within it usually.Existing audio amplifier generally includes a casing and is located at the loudspeaker in this casing, because loudspeaker are arranged in the casing, make that the thickness of casing is thicker and can't satisfy the requirement that portable electron device develops towards frivolous direction.In addition,, complicated location structure need be set in casing usually, thereby cause assembling inconvenience for these loudspeaker are fixed in this casing.
Summary of the invention
In view of this, be necessary to provide the audio amplifier of a kind of tool than minimal thickness.
A kind of audio amplifier; Comprise a casing and a loud speaker; Said casing comprises a lower cover and a loam cake; Said lower cover combines with loam cake and in casing, forms a sound chamber, and said loud speaker comprises a vibration unit and be used to drive a magnetic circuit unit of said vibration unit motion, covers under said and is provided with one first through hole; Corresponding said first through hole of said loam cake is provided with one second through hole; Said loud speaker is located in the said casing and corresponding said first through hole and the second through hole setting, and the magnetic circuit unit of said loud speaker is arranged in said first through hole and with said lower cover and fixes, and the vibration unit of said loud speaker is arranged in said second through hole and with said loam cake and fixes.
Compare prior art, in the above-mentioned audio amplifier, the magnetic circuit unit of loud speaker and vibration unit are arranged in the lower cover and the loam cake of casing respectively, have saved the thickness of lower cover, make the thin thickness of whole audio amplifier tool, thereby are fit to be applied in the electronic installation of thin type.
Description of drawings
With reference to the accompanying drawings, in conjunction with embodiment the present invention is further described.
Fig. 1 is the three-dimensional assembly diagram of audio amplifier one preferred embodiment of the present invention.
Fig. 2 is the exploded view of audio amplifier shown in Figure 1.
Fig. 3 is the inversion figure of a loam cake in the audio amplifier shown in Figure 2.
Fig. 4 is the cutaway view of audio amplifier shown in Figure 1 along the IV-IV line.
The main element symbol description
| |
100 |
| |
10 |
| Passage | 102、104 |
| |
11 |
| |
12 |
| The |
13 |
| First plate body | 111 |
| The first side wall | 112 |
| Step | 1121、126、148 |
| First through hole | 113 |
| |
121 |
| |
122 |
| Second through |
123 |
| Locating |
124 |
| |
125 |
| |
127 |
| |
128 |
| |
120 |
| The first cavity portion | 131 |
| The second cavity portion | 132 |
| First dividing plate | 14 |
| First plate | 141 |
| Second plate | 143 |
| The 3rd plate | 145 |
| The 4th plate | 147 |
| |
20 |
| |
21 |
| |
211 |
| Voice coil |
212 |
| Magnetic circuit unit | 22 |
| Magnetic gap | 221 |
| |
222 |
| |
2221 |
| Ringwall | 2222 |
| Magnet | 223 |
| Washer | 224 |
Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
Fig. 1 and shown in Figure 2 for a preferred embodiment of audio amplifier 100 of the present invention.This audio amplifier 100 comprises a casing 10 and is located in this casing 10 and runs through a loud speaker 20 of this casing 10.
Please consult Fig. 3 and Fig. 4 in the lump, this casing 10 is longitudinal, comprises a lower cover 11 and a loam cake 12, and this lower cover 11 combines with loam cake 12 and in casing 10, forms a sound chamber 13.This lower cover 11 comprises first plate body 111 of a lengthwise and a first side wall 112 that is extended towards this loam cake 12 by the periphery of said first plate body 111.This first side wall 112 is around first plate body 111, and the one of which end is circular-arc, and the other end is irregular shape relatively.This first plate body 111 is used to accommodate loud speaker 20 offering one first through hole 113 near the position of the first side wall 112 arc end part.One step 1121 is formed on the top of this first side wall 112, in order to cooperate with loam cake 12.These first plate body, 111 convex one first dividing plates 14 that stretch out.This first dividing plate 14 comprises successively one first plate 141 that connects, one second plate 143, one the 3rd plate 145 and one the 4th plate 147.First plate 141 is parallel to the 3rd plate 145 and is obliquely installed perpendicular to the 4th plate 147, the second plates, 143 relative first plates 141 and the 4th plate 147.This first plate 141 and first through hole, 113 partition distance, the 4th plate 147 connects the rear side of the first side wall 112.This first dividing plate 14 is recessed to form a step 148 downwards at its top.
This loam cake 12 comprises second plate body 121 of a lengthwise, one second sidewall 122 that is extended towards said lower cover 11 by the periphery of said second plate body 121 and the installation portion 125 that is formed at second plate body, 121 1 ends.This first side wall 112 combines with second sidewall 122 so that this loam cake 12 is fixed with lower cover 11.Particularly, the inner peripheral surface of second sidewall 122 is positioned at the outer peripheral face of step 1121 upper sections, the step 1121 of the base abuts the first side wall 112 of second sidewall 122 against the first side wall 112.This second plate body 121 is being offered an opening 127 away from the other end of installation portion 125.This second plate body 121 protrudes out a second partition 120 downwards in its bottom surface.The shape of this second partition 120 is corresponding with the shape of first dividing plate 14.The side of this second partition 120 is positioned at the side of step 148 upper sections, the step 148 of base abuts first dividing plate 14 of second partition 120 against first dividing plate 14.Thus, second partition 120 be embedded in first dividing plate 14 and with first dividing plate, the 14 common sound panels of forming.This sound panel is provided with separately near an end of loud speaker 20 and loud speaker 20 and is formed with two path 10s 2,104.This sound panel is separated into one first cavity portion 131 and one second cavity portion 132 with the sound chamber 13 in the casing 10, and wherein the volume of this first cavity portion 131 is less than the volume of the second cavity portion 132.During loud speaker 20 work; The air movement that promotes in the casing 10 gets into the first cavity portion 131 and the second cavity portion 132 respectively with warp two path 10s 2,104; Because the corresponding first cavity portion 131 is provided with opening 127 on the loam cake 12, air can free in and out the first cavity portion 131 through this opening 127.On the other hand, the air in the casing 10 only can be equivalent to increase the length in sound chamber 13, thereby make the preferable low-frequency effect of these audio amplifier 100 tools through the path 10 4 turnover second cavity portion 132.In other embodiments, the leading note plate can also only be formed on first plate body 111 or only be formed on second plate body 121.
This second plate body 121 is offered second through hole 123 that aligns with first through hole 113.This installation portion 125 is around this second through hole 123, and wall forms a location division within it, in order to loud speaker 20 is positioned.In the present embodiment, this location division comprises the some ribs 128 that circumferentially are the equally distributed some locating pieces 124 in interval and are formed at locating piece 124 belows along second through hole 123.These installation portion 125 tops form a step 126 to lower recess.The groove 129 of one ring-type is formed on the bottom of this installation portion 125, is used to accommodate the part the first side wall 112 of lower cover 11 correspondences.
This loud speaker 20 comprises a vibration unit 21 and is used to drive a magnetic circuit unit 22 of these vibration unit 21 motions.The magnetic circuit unit 22 of this loud speaker 20 is arranged in first through hole 113 of lower cover 11 and with this lower cover 11 and fixes, and the vibration unit 21 of this loud speaker 20 is arranged in second through hole 123 of loam cake 12 and with this loam cake 12 and fixes.
Be formed with a magnetic gap 221 in this magnetic circuit unit 22, this vibration unit 21 comprises a vibrating diaphragm 211 and a voice coil loudspeaker voice coil 212.As shown in Figure 4, the outer peripheral edges of this vibrating diaphragm 211 are located on the step 126 of loam cake 12 and with this loam cake 12 and are fixed.The upper end of this voice coil loudspeaker voice coil 212 is incorporated on this vibrating diaphragm 211, and the lower end of this voice coil loudspeaker voice coil 212 stretches in the magnetic gap 221 of magnetic circuit unit 22.In the present embodiment, this magnetic circuit unit 22 comprises a U iron 222, a magnet 223 and a washer 224.This U iron 222 comprises a base plate 2221 and by the upwardly extending ringwall 2222 of the periphery of this base plate 2221, and is surrounded with ringwall 2222 by this base plate 2221 and to form a receiving space.This magnet 223 is stacked and placed in the receiving space of this U iron 222 with washer 224 successively, and this magnetic gap 221 is formed between the ringwall 2222 and magnet 223 and washer 224 of U iron 222.In other embodiments; This magnetic circuit unit 22 also can be other traditional modes; As comprise T iron, annular magnet and annular washer; This annular magnet and annular washer are sheathed on the base plate of T iron successively and are located on the periphery of a column of T iron, and between the column of T iron and this annular washer and annular magnet, form a magnetic gap.
When assembling this audio amplifier 100, earlier loam cake 12 is combined with lower cover 11 loud speaker 20 to be assembled in this casing 10 to form casing 10 again.Before being assembled to loud speaker 20 on the casing 10, each element with magnetic circuit unit 22 fits together earlier, and each element of vibration unit 21 has been assembled in.Then; The magnetic circuit unit that has assembled 22 is stretched in the casing 10 from first through hole 113 by lower cover 11 downsides; Locating piece 124 until the location division of the top of U iron 222 and this loam cake 12 connects; This moment loam cake 12 second through hole 123 in inner peripheral surface and the ringwall 2222 of first through hole 113 of rib 128 and lower cover 11 interfere against, thereby magnetic circuit unit 22 is located; Adopt gummed or alternate manner that ringwall 2222 bottoms and the lower cover 11 of U iron 222 are fixed again; And the vibration unit 21 that will assemble stretches in the casing 10 from second through hole 123 by loam cake 12 upsides, connects until the outer peripheral edges and the step 126 of vibrating diaphragm 211, adopts gummed or alternate manner that the outer peripheral edges and the loam cake 12 of vibrating diaphragm 211 are fixed again.After assembling, the bottom of magnetic circuit unit 22 will convexedly stretch under the bottom surface of lower cover 11, and the top of vibrating diaphragm 211 will convexedly stretch on the end face of installation portion 125 of loam cake 12.
In the above-mentioned audio amplifier 100; The magnetic circuit unit 22 and the vibration unit 21 of this loud speaker 20 is arranged in the lower cover 11 and loam cake 12 of this casing 10 respectively; Compared to prior art; This loud speaker 20 is at its thickness that has saved first plate body 111 of this lower cover 11 on axially, makes whole audio amplifier 100 thinner, thereby is fit to be applied in the slim electronic installation.This magnetic circuit unit 22 adopts with vibration unit 21 separates assembling, locatees and assemble more convenient.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (10)
1. audio amplifier; Comprise a casing and a loud speaker; Said casing comprises a lower cover and a loam cake; Said lower cover combines with loam cake and in casing, forms a sound chamber, and said loud speaker comprises a vibration unit and is used to drive a magnetic circuit unit of said vibration unit motion, it is characterized in that: cover under said and be provided with one first through hole; Corresponding said first through hole of said loam cake is provided with one second through hole; Said loud speaker is located in the said casing and corresponding said first through hole and the second through hole setting, and the magnetic circuit unit of said loud speaker is arranged in said first through hole and with said lower cover and fixes, and the vibration unit of said loud speaker is arranged in said second through hole and with said loam cake and fixes.
2. audio amplifier as claimed in claim 1; It is characterized in that: form a magnetic gap in the said magnetic circuit unit; Said vibration unit comprises a vibrating diaphragm and a voice coil loudspeaker voice coil; The outer peripheral edges of said vibrating diaphragm and said loam cake fix, and an end of said voice coil loudspeaker voice coil is incorporated on the said vibrating diaphragm, and the other end of said voice coil loudspeaker voice coil stretches in the magnetic gap of said magnetic circuit unit.
3. audio amplifier as claimed in claim 2; It is characterized in that: said magnetic circuit unit comprises a U iron, a magnet and a washer; Said U iron comprises that a base plate reaches by the upwardly extending ringwall of the periphery of said base plate; And surround by said base plate and ringwall and to form a receiving space; Said magnet and washer are stacked and placed in the receiving space of said U iron successively, and said magnetic gap is formed between the ringwall and magnet and washer of said U iron, and the ringwall of said U iron is arranged in said first through hole and with said lower cover and fixes.
4. audio amplifier as claimed in claim 3 is characterized in that: be covered with certain position portion on said, the top of said U iron and the location division of said loam cake connect.
5. audio amplifier as claimed in claim 4 is characterized in that: said location division comprises the some locating pieces that circumferentially are set in distance along said second through hole.
6. audio amplifier as claimed in claim 2; It is characterized in that: corresponding said second through hole of said loam cake convexes with the installation portion of an annular; The inner peripheral on the top of said installation portion is concaved with the stage portion of an annular, and the outer peripheral edges of said vibrating diaphragm are located on the said stage portion and with this loam cake and are fixed.
7. like each described audio amplifier of claim 1 to 6; It is characterized in that: said casing is longitudinal; Said lower cover comprises first plate body of a lengthwise and a first side wall that is extended towards said loam cake by the periphery of said first plate body; Said loam cake comprises second plate body of a lengthwise and one second sidewall that is extended towards said lower cover by the periphery of said second plate body; Said the first side wall combines with second sidewall so that said loam cake and lower cover are fixed, and said first through hole and second through hole are located on said first plate body and second plate body respectively and near a casing end setting longitudinally.
8. audio amplifier as claimed in claim 7; It is characterized in that: formation is along the leading note plate of a lengthwise of the longitudinal extension of casing in the said casing; Said leading note plate is provided with and forms two passages at interval near an end and the said loud speaker of said loud speaker, and said leading note plate is connected with the said the first side wall and second sidewall the sound chamber in the casing is separated into one first cavity portion and one second cavity portion away from an end of loud speaker.
9. audio amplifier as claimed in claim 8; It is characterized in that: the volume of the said first cavity portion is less than the volume of the second cavity portion; Second plate body of said loam cake is provided with an opening in the corresponding said first cavity portion of an end away from loud speaker, so that the first cavity portion is in communication with the outside.
10. audio amplifier as claimed in claim 1 is characterized in that: the bottom of magnetic circuit unit convexedly stretches in the below, bottom surface of lower cover, and the top of vibration unit convexedly stretches in the top face of loam cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110349609 CN102811396A (en) | 2011-05-30 | 2011-11-08 | Sound box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110142366.9 | 2011-05-30 | ||
| CN201110142366 | 2011-05-30 | ||
| CN 201110349609 CN102811396A (en) | 2011-05-30 | 2011-11-08 | Sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102811396A true CN102811396A (en) | 2012-12-05 |
Family
ID=47234953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110349609 Pending CN102811396A (en) | 2011-05-30 | 2011-11-08 | Sound box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102811396A (en) |
| TW (1) | TW201249219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801137A (en) * | 2017-12-22 | 2018-03-13 | 奥音精密机械（镇江）有限公司 | A kind of separate type loudspeaker easy to install |
| CN107948770A (en) * | 2017-12-22 | 2018-04-20 | 宁波向往智能科技有限公司 | A kind of concealed speaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI583208B (en) * | 2015-10-15 | 2017-05-11 | 宏碁股份有限公司 | Speaker module and electronic device using the same |
-
2011
- 2011-11-08 CN CN 201110349609 patent/CN102811396A/en active Pending
- 2011-11-09 TW TW100140917A patent/TW201249219A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801137A (en) * | 2017-12-22 | 2018-03-13 | 奥音精密机械（镇江）有限公司 | A kind of separate type loudspeaker easy to install |
| CN107948770A (en) * | 2017-12-22 | 2018-04-20 | 宁波向往智能科技有限公司 | A kind of concealed speaker |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201249219A (en) | 2012-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |