CN103281649A - Handheld digital device structure with expandable sound chambers and speakers - Google Patents
Handheld digital device structure with expandable sound chambers and speakers Download PDFInfo
- Publication number
- CN103281649A CN103281649A CN2013101612617A CN201310161261A CN103281649A CN 103281649 A CN103281649 A CN 103281649A CN 2013101612617 A CN2013101612617 A CN 2013101612617A CN 201310161261 A CN201310161261 A CN 201310161261A CN 103281649 A CN103281649 A CN 103281649A
- Authority
- CN
- China
- Prior art keywords
- sound chamber
- sound
- chamber wall
- loud speaker
- opening
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 11
- 239000012634 fragment Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a handheld digital device structure with expandable sound chambers and speakers in the technical field of electronic devices. The handheld digital device structure comprises a first speaker, a second speaker, a pcb (Printed Circuit Board), a first sound chamber wall, a second sound chamber wall and sound chamber sealing covers, wherein the first sound chamber wall and the pcb form a first sound chamber space, and the first sound chamber wall and the second sound chamber wall form a second sound chamber space; one end of the first sound chamber wall is provided with a first opening, and the first speaker is arranged in the first sound chamber space and is electrically connected with the pcb; the sound outlet of the first speaker is arranged towards the first opening of the first sound chamber wall and is in tight fit and connection with the first opening, and the other end of the first sound chamber wall is provided with a through hole which is selectively sealed by the sound chamber sealing cover; the sound chamber sealing cover props against the first sound chamber wall through an elastic element, and a second opening is formed in the second sound chamber wall; and the second speaker is arranged in the second sound chamber space and is electrically connected with the pcb, and the sound outlet of the second speaker is arranged towards the second opening of the second sound chamber wall and is in tight fit and connection with the second opening.
Description
Technical field
The present invention relates to technical field of electronic equipment, relate in particular to the hand-held digital device structure that a kind of tool can be expanded sound chamber and loud speaker.
Background technology
The quality of audio amplifier tonequality and audio follows the size in loud speaker sound chamber that very large relation is arranged.The size in back sound chamber has tremendous influence to the low frequency part of sound, and the low frequency part of sound is strong to the tonequality influence.Back sound chamber is more big, and bass is just more outstanding, and subjective meeting thinks that sound is more melodious.Therefore, sound chamber, expansion back is to the integral sound effect effect of having greatly improved.And in recent years, the situation of utilize hand-held digital equipment such as notebook computer with sound chamber, mobile phone, walkman to converse, listen to music, carrying out acoustic processing is very general.For more easy to use, those hand-held digital equipment are made more and more littler, and the space in the sound chamber on the equipment also is restricted, and also can't set up loud speaker, so tonequality and audio are all very undesirable, problems such as the ubiquity bass is unintelligible, louder volume distorsion.
Summary of the invention
The object of the present invention is to provide a kind of tool that can optimize audio can expand the hand-held digital device structure of sound chamber and loud speaker.
For achieving the above object, the hand-held digital device structure that technical scheme of the present invention can be expanded sound chamber and loud speaker for a kind of tool is provided, comprise first loud speaker, second loud speaker, the pcb plate, lid is located at the first sound chamber wall on the described pcb plate, lid is located at the second sound chamber wall and the sound chamber seal cover on the described first sound chamber wall, the described first sound chamber wall and described pcb plate surround and form the first sound cavity space, the described first sound chamber wall and the described second sound chamber wall surround and form the second sound cavity space, described first sound chamber wall one end is offered first opening, described first loud speaker is arranged in the described first sound cavity space and with described pcb plate and is electrically connected, the sound mouth of described first loud speaker is closely connected towards first opening of the described first sound chamber wall and with this first opening, the other end of the described first sound chamber wall offers the through hole for the seal cover selectivity sealing of described sound chamber, described sound chamber seal cover is replaced on the described first sound chamber wall by flexible member, offer second opening on the described second sound chamber wall, described second loud speaker is arranged in the described second sound cavity space and with described pcb plate and is electrically connected, and the sound mouth of described second loud speaker is closely connected towards second opening of the described second sound chamber wall and with this second opening; When needs expansion sound chamber, utilizing described flexible member to drive described sound chamber seal cover opens, make through hole be communicated with the first sound cavity space, form the described first sound cavity space and be connected with the described second sound cavity space, so realize the expansion in sound chamber, reach the purpose that improves music effect, simultaneously, by in the second sound cavity space, also being provided with second loud speaker, utilize second loud speaker to realize that more perfectly tonequality is experienced, solve the user to the demand of perfect tonequality.
Preferably, described flexible member is arranged in the described first sound cavity space, compact conformation.
Preferably, comprise that also described elastic controller is connected with described sound chamber seal cover for the flexible elastic controller of the described flexible member of control; Control the compression of described flexible member by described elastic controller, and then drive described sound chamber seal cover and open, make through hole be communicated with the sound cavity space, the expansion in realization sound chamber.
Preferably, described sound chamber seal cover is provided with metal clips, and described second loud speaker is electrically connected compact conformation by described metal clips with described pcb plate.
Preferably, the bottom of described second loud speaker is provided with the conducting shell fragment, and described conducting shell fragment is connected with described metal clips.
Preferably, the sound mouth periphery of described first loud speaker is closely connected by first opening of first sealed bolster and the described first sound chamber wall, the sound mouth periphery of described second loud speaker is closely connected good sealing effect by second opening of second sealed bolster and the described second sound chamber wall.
Preferably, be coated with first magnetic conduction sheet on first opening of the described first sound chamber wall, be coated with second magnetic conduction sheet on second opening of the described second sound chamber wall, utilize elimination, reduction, the opposing that magnetic conduction sheet has or the function of isolating the interference of electromagnetic field, guarantee to play tonequality.
Preferably, be coated with first Air Filter on first opening of the described first sound chamber wall, be coated with second Air Filter on second opening of the described second sound chamber wall, guarantee the useful life of loud speaker, also guarantee audio simultaneously.
Compared with prior art, the present invention is by offering the through hole for the seal cover selectivity sealing of described sound chamber on the described first sound chamber wall, establish the second sound chamber wall in the described first sound chamber wall loam cake, in the described second loud speaker setting and the described second sound cavity space, described sound chamber seal cover is replaced on the described first sound chamber wall by flexible member, when needs expansion sound chamber, utilizing described flexible member to drive described sound chamber seal cover opens, make through hole be communicated with the first sound cavity space, forming the described first sound cavity space is connected with the described second sound cavity space, so realize the expansion in sound chamber, reach the purpose that improves music effect, simultaneously, by in the second sound cavity space, also being provided with second loud speaker, utilize second loud speaker to realize that more perfectly tonequality is experienced, solve the user to the demand of perfect tonequality, and its compact conformation, select diversity, be conducive to market competition.
Description of drawings
Fig. 1 is plan structure schematic diagram of the present invention.
Fig. 2 be among Fig. 1 A-A to generalized section.
Fig. 3 be among Fig. 1 B-B to generalized section.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
Please refer to shown in Fig. 1～3, a kind of tool provided by the invention can be expanded the hand-held digital device structure of sound chamber and loud speaker, comprise first loud speaker 1, second loud speaker 2, pcb plate 3, lid is located at the first sound chamber wall 4 on the described pcb plate 3, lid is located at the second sound chamber wall 5 on the described first sound chamber wall 4, sound chamber seal cover 6 and elastic controller (not shown), the described first sound chamber wall 4 surrounds with described pcb plate 3 and forms the first sound cavity space 40, the described first sound chamber wall 4 surrounds with the described second sound chamber wall 5 and forms the second sound cavity space 50, described first sound chamber wall 4 one ends are offered first opening 41, described first loud speaker 1 is arranged in the described first sound cavity space 40 and with described pcb plate 3 and is electrically connected, the sound mouth of described first loud speaker 1 is closely connected towards first opening 41 of the described first sound chamber wall 4 and with this first opening 41, the other end of the described first sound chamber wall 4 offers the through hole 42 for the seal cover 6 selectivity sealing of described sound chamber, described sound chamber seal cover 6 is replaced on the described first sound chamber wall 4 by flexible member 7, offer second opening 51 on the described second sound chamber wall 5, described second loud speaker 2 is arranged in the described second sound cavity space 50 and with described pcb plate 3 and is electrically connected, and the sound mouth of described second loud speaker 2 is closely connected towards second opening 51 of the described second sound chamber wall 5 and with this second opening 51; When needs expansion sound chamber, control described flexible member 7 compressions by described elastic controller, and then drive described sound chamber seal cover 6 and open, make through hole 42 be communicated with the first sound cavity space 40, forming the described first sound cavity space 40 is connected with the described second sound cavity space 50, so realize the expansion in sound chamber, reach the purpose that improves music effect, simultaneously, by in the second sound cavity space 50, also being provided with second loud speaker 2, utilize second loud speaker 2 to realize that more perfectly tonequality is experienced, solve the user to the demand of perfect tonequality.Particularly, described flexible member 7 is arranged in the described first sound cavity space 40, compact conformation.
In the present embodiment, described sound chamber seal cover 6 is provided with metal clips 61, and this metal clips 61 is can be in described sound chamber seal cover 6 in-molded or be fixed in by other means on the described sound chamber seal cover 6.Described second loud speaker 2 is electrically connected with described pcb plate 3 by described metal clips 61, and particularly, the bottom of described second loud speaker 2 is provided with conducting shell fragment 21, and described conducting shell fragment 21 is connected compact conformation with described metal clips 61.
Preferably, the sound mouth periphery of described first loud speaker 1 is closely connected by first opening 41 of first sealed bolster 81 with the described first sound chamber wall 4, the sound mouth periphery of described second loud speaker 2 is closely connected good sealing effect by second opening 51 of second sealed bolster 82 and the described second sound chamber wall 5.
Preferably, be coated with first magnetic conduction sheet 91 on first opening 41 of the described first sound chamber wall 4, be coated with second magnetic conduction sheet 92 on second opening 51 of the described second sound chamber wall 5, utilize elimination, reduction, the opposing that magnetic conduction sheet has or the function of isolating the interference of electromagnetic field, guarantee to play tonequality.And be coated with first Air Filter 101 on first opening 41 of the described first sound chamber wall 4, be coated with second Air Filter 102 on second opening 51 of the described second sound chamber wall 5, in the useful life of guaranteeing loud speaker, also guarantee audio simultaneously.Particularly, described first magnetic conduction sheet 91 is positioned at the below of described first Air Filter 101, and described second magnetic conduction sheet 92 is positioned at the below of described second Air Filter 102, compact conformation.
In a word, the present invention is by offering the through hole 42 for the seal cover 6 selectivity sealing of described sound chamber on the described first sound chamber wall 4, establish the second sound chamber wall 5 in described first sound chamber wall 4 loam cakes, in 2 settings of described second loud speaker and the described second sound cavity space 50, described sound chamber seal cover 6 is replaced on the described first sound chamber wall 4 by flexible member 7, when needs expansion sound chamber, utilizing described flexible member 7 to drive described sound chamber seal cover 6 opens, make through hole 42 be communicated with the first sound cavity space 40, forming the described first sound cavity space 40 is connected with the described second sound cavity space 50, so realize the expansion in sound chamber, reach the purpose that improves music effect, simultaneously, by in the second sound cavity space 50, also being provided with second loud speaker 2, utilize second loud speaker 2 to realize that more perfectly tonequality is experienced, solve the user to the demand of perfect tonequality, and its compact conformation, select diversity, be conducive to market competition.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (9)
1. a tool can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: comprise first loud speaker, second loud speaker, the pcb plate, lid is located at the first sound chamber wall on the described pcb plate, lid is located at the second sound chamber wall and the sound chamber seal cover on the described first sound chamber wall, the described first sound chamber wall and described pcb plate surround and form the first sound cavity space, the described first sound chamber wall and the described second sound chamber wall surround and form the second sound cavity space, described first sound chamber wall one end is offered first opening, described first loud speaker is arranged in the described first sound cavity space and with described pcb plate and is electrically connected, the sound mouth of described first loud speaker is closely connected towards first opening of the described first sound chamber wall and with this first opening, the other end of the described first sound chamber wall offers the through hole for the seal cover selectivity sealing of described sound chamber, described sound chamber seal cover is replaced on the described first sound chamber wall by flexible member, offer second opening on the described second sound chamber wall, described second loud speaker is arranged in the described second sound cavity space and with described pcb plate and is electrically connected, and the sound mouth of described second loud speaker is closely connected towards second opening of the described second sound chamber wall and with this second opening.
2. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: described flexible member is arranged in the described first sound cavity space.
3. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: comprise that also described elastic controller is connected with described sound chamber seal cover for the flexible elastic controller of the described flexible member of control.
4. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: described sound chamber seal cover is provided with metal clips, and described second loud speaker is electrically connected with described pcb plate by described metal clips.
5. tool as claimed in claim 4 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: the bottom of described second loud speaker is provided with the conducting shell fragment, and described conducting shell fragment is connected with described metal clips.
6. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: the sound mouth periphery of described first loud speaker is closely connected by first opening of first sealed bolster and the described first sound chamber wall, and the sound mouth periphery of described second loud speaker is closely connected by second opening of second sealed bolster and the described second sound chamber wall.
7. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: be coated with first magnetic conduction sheet on first opening of the described first sound chamber wall, be coated with second magnetic conduction sheet on second opening of the described second sound chamber wall.
8. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: be coated with first Air Filter on first opening of the described first sound chamber wall, be coated with second Air Filter on second opening of the described second sound chamber wall.
9. tool as claimed in claim 1 can be expanded the hand-held digital device structure of sound chamber and loud speaker, it is characterized in that: described sound chamber seal cover is provided with metal clips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161261.7A CN103281649B (en) | 2013-05-03 | 2013-05-03 | The hand-held digital device structure of tool easily extensible sound chamber and loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161261.7A CN103281649B (en) | 2013-05-03 | 2013-05-03 | The hand-held digital device structure of tool easily extensible sound chamber and loud speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103281649A true CN103281649A (en) | 2013-09-04 |
| CN103281649B CN103281649B (en) | 2016-04-20 |
Family
ID=49064065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310161261.7A Expired - Fee Related CN103281649B (en) | 2013-05-03 | 2013-05-03 | The hand-held digital device structure of tool easily extensible sound chamber and loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103281649B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618832A (en) * | 2014-11-25 | 2015-05-13 | 李世煌 | Cavity scalable speaker |
| WO2016082729A1 (en) * | 2014-11-25 | 2016-06-02 | 新加坡振源科技有限公司 | Expandable-cavity speaker box |
| CN108401051A (en) * | 2018-02-26 | 2018-08-14 | 广东欧珀移动通信有限公司 | Electronic building brick and electronic equipment |
| CN108429948A (en) * | 2018-02-26 | 2018-08-21 | 广东欧珀移动通信有限公司 | Electronic building brick and electronic equipment |
| CN111586219A (en) * | 2020-05-14 | 2020-08-25 | 维沃移动通信有限公司 | Electronic device |
| CN112261180A (en) * | 2020-10-12 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device, control method of electronic device, and computer-readable storage medium |
| CN112689220A (en) * | 2021-01-22 | 2021-04-20 | 深圳市锐尔觅移动通信有限公司 | Electronic device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207717A1 (en) * | 2000-11-16 | 2002-05-22 | Thomson Licensing S.A. | Electronic device with variable sound chamber |
| CN201118965Y (en) * | 2007-08-20 | 2008-09-17 | 苏州挚盟电子有限公司 | Dual magnetic channel driven ring speaker for a mobile phone |
| CN201830308U (en) * | 2010-07-20 | 2011-05-11 | 华为终端有限公司 | Mobile terminal |
| CN201887941U (en) * | 2011-01-04 | 2011-06-29 | 广东欧珀移动通信有限公司 | Loudspeaker structure of mobile phone |
| CN102547532A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sound box and electronic device using same |
| CN202773073U (en) * | 2012-09-28 | 2013-03-06 | 歌尔声学股份有限公司 | Speaker device |
| CN202799034U (en) * | 2012-08-25 | 2013-03-13 | 歌尔声学股份有限公司 | Speaker module |
-
2013
- 2013-05-03 CN CN201310161261.7A patent/CN103281649B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207717A1 (en) * | 2000-11-16 | 2002-05-22 | Thomson Licensing S.A. | Electronic device with variable sound chamber |
| CN201118965Y (en) * | 2007-08-20 | 2008-09-17 | 苏州挚盟电子有限公司 | Dual magnetic channel driven ring speaker for a mobile phone |
| CN201830308U (en) * | 2010-07-20 | 2011-05-11 | 华为终端有限公司 | Mobile terminal |
| CN102547532A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sound box and electronic device using same |
| CN201887941U (en) * | 2011-01-04 | 2011-06-29 | 广东欧珀移动通信有限公司 | Loudspeaker structure of mobile phone |
| CN202799034U (en) * | 2012-08-25 | 2013-03-13 | 歌尔声学股份有限公司 | Speaker module |
| CN202773073U (en) * | 2012-09-28 | 2013-03-06 | 歌尔声学股份有限公司 | Speaker device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618832A (en) * | 2014-11-25 | 2015-05-13 | 李世煌 | Cavity scalable speaker |
| WO2016082729A1 (en) * | 2014-11-25 | 2016-06-02 | 新加坡振源科技有限公司 | Expandable-cavity speaker box |
| CN104618832B (en) * | 2014-11-25 | 2018-12-28 | 新加坡振源科技有限公司 | A kind of speaker that cavity is expansible |
| CN108401051A (en) * | 2018-02-26 | 2018-08-14 | 广东欧珀移动通信有限公司 | Electronic building brick and electronic equipment |
| CN108429948A (en) * | 2018-02-26 | 2018-08-21 | 广东欧珀移动通信有限公司 | Electronic building brick and electronic equipment |
| CN108401051B (en) * | 2018-02-26 | 2020-05-26 | Oppo广东移动通信有限公司 | Electronic component and electronic device |
| CN111586219A (en) * | 2020-05-14 | 2020-08-25 | 维沃移动通信有限公司 | Electronic device |
| CN111586219B (en) * | 2020-05-14 | 2021-06-08 | 维沃移动通信有限公司 | Electronic device |
| CN112261180A (en) * | 2020-10-12 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device, control method of electronic device, and computer-readable storage medium |
| CN112261180B (en) * | 2020-10-12 | 2022-03-08 | 维沃移动通信有限公司 | Electronic device, control method of electronic device |
| CN112689220A (en) * | 2021-01-22 | 2021-04-20 | 深圳市锐尔觅移动通信有限公司 | Electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103281649B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103281649A (en) | Handheld digital device structure with expandable sound chambers and speakers | |
| US10085086B2 (en) | Resonance damping for audio transducer systems | |
| CN103108268B (en) | Speaker module and use the electronic installation of this speaker module | |
| CN209299516U (en) | A kind of loudspeaker mould group and electronic equipment | |
| CN203181201U (en) | Hand-held digital equipment structure with extensible sound cavity | |
| CN105101036A (en) | Sounding device and installation method thereof | |
| CN103581809B (en) | A kind of terminal and its receiver | |
| CN203691620U (en) | Ultra-thin acoustic cavity structure | |
| CN101711005B (en) | Device for improving outgoing loudspeaker responses | |
| CN203219475U (en) | Sound box structure possessing extensible sound cavity and mobile equipment | |
| CN103108269A (en) | Speaker module and electronic device using the same | |
| CN106953952A (en) | A kind of mobile terminal with piezoelectric ceramic piece | |
| US9374637B2 (en) | Electronic system and electronic device thereof | |
| CN107222597A (en) | A kind of sealing ring and corresponding complete machine sealing mobile phone | |
| WO2024037183A1 (en) | Audio output method, electronic device and computer-readable storage medium | |
| CN203225864U (en) | Loudspeaker module and electronic device using same | |
| CN204697287U (en) | Piezoelectric speaker | |
| CN203675318U (en) | Panel-type loudspeaker used for cell phone or tablet PC | |
| CN216391318U (en) | Intelligent sound box | |
| CN203027479U (en) | Piezoelectric speaker | |
| CN202455491U (en) | Mega bass mini loudspeaker box | |
| CN104936111A (en) | Piezoelectric loudspeaker | |
| CN209030436U (en) | A kind of instrument loudspeaker installing structure | |
| CN203352747U (en) | Improved portable loudspeaker box | |
| CN103067839A (en) | Piezoelectric loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |