CN201557253U - Loudspeaker system provided with antenna - Google Patents
Loudspeaker system provided with antenna Download PDFInfo
- Publication number
- CN201557253U CN201557253U CN2009202601820U CN200920260182U CN201557253U CN 201557253 U CN201557253 U CN 201557253U CN 2009202601820 U CN2009202601820 U CN 2009202601820U CN 200920260182 U CN200920260182 U CN 200920260182U CN 201557253 U CN201557253 U CN 201557253U
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- voice coil
- frequency
- radio
- output circuit
- power amplifier
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Abstract
The utility model relates to the field of loudspeaker systems, in particular to a loudspeaker system which is provided with an antenna and has the function of short-distance communication; a layer of coating coil used for transmitting an electromagnetic wave signal is coated on the surface of a front cover towards the direction of a vibration film; and the coating coil is electrically connected with a voice coil. The coating coil has small volume so as not to additionally occupy larger space, and is thinner compared with the traditional coating coil, thus having more remarkable performance advantages.
Description
[technical field]
The utility model relates to the speaker system field, specifically refers to a kind of speaker system that has antenna with short-range communications functionality.
[background technology]
Fast development along with portable consumer electronic device, people are more and more higher to its functional requirement, except being furnished with acoustical generator, near-field communication Near Field Communication (being called for short NFC) and radio-frequency (RF) identification RadioFrequency Identification (being called for short RFID) function have all been set up in a lot of consumer-elcetronics devicess in the electronic equipment with the information exchange between the realization equipment as the vocal function.For realizing this function, existing mobile communication equipment manufacturer successively is embedded in near-field communication technology or REID at mobile communication product, make such mobile communication product get final product sounding, can exchange electromagnetic wave signal to realize carrying out short-range information exchange between the electronic equipment by near-field communication technology and REID again to realize call function.On the pcb board of mobile communication product, add NFC radio-frequency (RF) power amplification output circuit, have one need are treated the radio-frequency (RF) power amplification and the electric capacity that is connected with amplifirer that the electricity signal amplifies in this NFC radio-frequency (RF) power amplification output circuit, an antenna also need be installed with emission or reception electromagnetic wave signal in this product, electric capacity in this antenna and NFC or the RFID power amplifier output circuit constitutes resonant circuit, and launch the electromagnetic wave signal that this resonant circuit produces, thereby carry out short-range information exchange by the exchange electromagnetic wave between the realization equipment by this antenna.Generally, required antenna is to add a special-purpose coil in mobile communication equipment, but along with mobile communication equipment is more and more microminiaturized, its volume inside is then more and more limited, thereby causes being difficult to find suitable space to be used to settle special-purpose coil.
Thereby, near-field communication technology and radio-frequency (RF) identification (being called for short RFID) are embedded in the mobile communication equipment, the problem values that can solve its inner space predicament again gets people's research.
[utility model content]
The utility model is subjected to the restriction of existing sound-producing device inner space at solution, is difficult to install the problem that is used for special-purpose emission or accepts electromagnetic antenna, and provides a kind of conserve space to have the speaker system of antenna.
A kind of speaker system that has antenna, comprise the loud speaker body, handle the radio-frequency (RF) power amplification output circuit of electromagnetic wave signal and the audio frequency power amplifier output circuit of transmission audio signal, described loud speaker body comprises the voice coil loudspeaker voice coil that is positioned at the protecgulum on the basin frame and is positioned at the basin frame, wherein, described protecgulum is coated with the coating coil that one deck transmits electromagnetic wave signal towards the surface of vibrating diaphragm direction, this coating coil is electrically connected with voice coil loudspeaker voice coil.
Preferably, described coating coil structure ringwise.
Described radio-frequency (RF) power amplification output circuit comprises radio-frequency (RF) power amplification and the capacitor C 1 and the C2 that connect with the radio-frequency (RF) power amplification two ends respectively, connect the respectively output of voice coil loudspeaker voice coil of capacitor C 1 and C2; Described audio frequency power amplifier output circuit comprises audio frequency power amplifier and the inductance L 1 and the L2 that connect with the audio frequency power amplifier two ends respectively, and inductance L 1 and L2 are electrically connected voice coil loudspeaker voice coil respectively.
The utility model has the speaker system of antenna, be coated with the coating coil that one deck transmits electromagnetic wave signal towards the surface of vibrating diaphragm direction at protecgulum, this coating coil is electrically connected with voice coil loudspeaker voice coil, described coating winding volume is little, do not take bigger space in addition, compare thinlyyer with traditional, performance advantage is more obvious.
[description of drawings]
Fig. 1 is a blast structural representation of the present utility model;
Fig. 2 is a generalized section of the present utility model;
Fig. 3 is a circuit block diagram of the present utility model.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, 2, the utility model provides a kind of speaker system that has antenna, it comprises loud speaker body 20, handle the radio-frequency (RF) power amplification output circuit 60 of electromagnetic wave signal and audio frequency power amplifier output circuit 50 (not shown)s of transmission audio signal, can on the pcb board on the loud speaker body, embed audio frequency power amplifier output circuit 50 and radio-frequency (RF) power amplification output circuit 60 in advance; Described loud speaker body 20 comprises basin frame 21, the basin frame is provided with protecgulum 10, reach voice coil loudspeaker voice coil 22 (not shown)s that accommodate basin frame 20 inside, wherein said protecgulum 10 is coated with the coating coil 11 that one deck transmits electromagnetic wave signal towards the surface of vibrating diaphragm direction, and this coating coil 11 is electrically connected with voice coil loudspeaker voice coil 22.Described coating coil 11 is compared with traditional coiled antenna, can do extremely thinly under the constant situation of performance, and performance advantage is more obvious in super-thin speaker especially.Coating coil 11 has the bigger advantage of thinner swept area for loop configuration is fitted in the surface of protecgulum 11 closely, and this structure is better effects if on the interacting of blocking-up audio frequency, radio frequency, and only occupies inner very little space.
As shown in Figure 3, be the utility model circuit block diagram, described radio-frequency (RF) power amplification output circuit 60 comprises radio-frequency (RF) power amplification 61 and the capacitor C 1 and the C2 that connect with radio-frequency (RF) power amplification 61 two ends respectively, connect the respectively output of voice coil loudspeaker voice coil 22 of capacitor C 1 and C2, radio-frequency (RF) power amplification 61 are used for need are waited to send out or the signal of exchange amplifies.Audio frequency power amplifier output circuit 50 comprises audio frequency power amplifier 51 and the inductance L 1 and the L2 that connect with audio frequency power amplifier 51 two ends respectively, and inductance L 1 and L2 are electrically connected voice coil loudspeaker voice coil 22 respectively.
Operation principle of the present utility model is: when 50 work of audio frequency power amplifier output circuit, its operating frequency section is 0～22KHZ, capacitor C 1 and C2 present high impedance or resistance at this frequency band, so that can be considered disconnection, when being 50 work of audio frequency power amplifier output circuit, radio-frequency (RF) power amplification output circuit 60 is not worked.Equally, when 60 work of radio-frequency (RF) power amplification output circuit, its operating frequency is 13.56MHz, inductance L 1 and L2 in the audio frequency power amplifier output circuit 50 present high impedance or resistance in this frequency, so that can be considered disconnection, when being 60 work of radio-frequency (RF) power amplification output circuit, audio frequency power amplifier output circuit 50 is not worked.
The utility model speaker system often is applied on the electronic equipments such as cell phone.Loud speaker body 20 is sounded to realize call function; Radio-frequency (RF) power amplification output circuit 60 is to realize carrying out short-range information exchange between the electronic equipment.Usually, audio frequency power amplifier output circuit 50 and radio-frequency (RF) power amplification output circuit 60 and other electrical components also can be integrated on the interior pcb board of electronic equipment.The utility model separates audio frequency output and radio frequency output, thereby when the user need use the near-field communication technology to carry out short haul connection, 60 work of radio-frequency (RF) power amplification output circuit, audio frequency power amplifier output circuit 50 is not worked, the coating coil 11 of this moment is equal to an inductance, capacitor C 1 in this circuit and capacitor C 2 and inductance constitute a resonant circuit, and simultaneously, coating coil 11 passes out the electromagnetic wave signal that this resonant circuit produces as antenna.
The utility model audio frequency output and radio frequency output can be worked simultaneously, are independent of each other realization speaker system and use the rational deployment of the electronic equipment of this system, solved the space predicament of electronic equipment, and do not increase under the situation in space, make the area of coating coil 11 bigger, performance is better.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (3)
1. speaker system that has antenna, comprise the loud speaker body, handle the radio-frequency (RF) power amplification output circuit of electromagnetic wave signal and the audio frequency power amplifier output circuit of transmission audio signal, described loud speaker body comprises the voice coil loudspeaker voice coil that is positioned at the protecgulum on the basin frame and is positioned at the basin frame, it is characterized in that: described protecgulum is coated with the coating coil that one deck transmits electromagnetic wave signal towards the surface of vibrating diaphragm direction, this coating coil is electrically connected with voice coil loudspeaker voice coil.
2. the speaker system that has antenna according to claim 1 is characterized in that: described coating coil is structure ringwise.
3. the speaker system that has antenna according to claim 1 is characterized in that: described radio-frequency (RF) power amplification output circuit comprises radio-frequency (RF) power amplification and the capacitor C 1 and the C2 that connect with the radio-frequency (RF) power amplification two ends respectively, connect the respectively output of voice coil loudspeaker voice coil of capacitor C 1 and C2; Described audio frequency power amplifier output circuit comprises audio frequency power amplifier and the inductance L 1 and the L2 that connect with the audio frequency power amplifier two ends respectively, and inductance L 1 and L2 are electrically connected voice coil loudspeaker voice coil respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202601820U CN201557253U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system provided with antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202601820U CN201557253U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system provided with antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201557253U true CN201557253U (en) | 2010-08-18 |
Family
ID=42616943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202601820U Expired - Lifetime CN201557253U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system provided with antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201557253U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206280A1 (en) * | 2013-06-26 | 2014-12-31 | Shenzhen Byd Auto R&D Company Limited | Metal shell and cell phone comprising the same |
| WO2015172483A1 (en) * | 2014-05-15 | 2015-11-19 | 中兴通讯股份有限公司 | Near field communication device and working method, mobile terminal thereof |
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
| CN109688521A (en) * | 2018-12-29 | 2019-04-26 | 重庆蓝岸通讯技术有限公司 | A kind of loudspeaker, preparation method, wireless communication module and terminal device |
-
2009
- 2009-11-09 CN CN2009202601820U patent/CN201557253U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206280A1 (en) * | 2013-06-26 | 2014-12-31 | Shenzhen Byd Auto R&D Company Limited | Metal shell and cell phone comprising the same |
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
| WO2015172483A1 (en) * | 2014-05-15 | 2015-11-19 | 中兴通讯股份有限公司 | Near field communication device and working method, mobile terminal thereof |
| CN105099523A (en) * | 2014-05-15 | 2015-11-25 | 中兴通讯股份有限公司 | Near filed communication apparatus and work method thereof, and mobile terminal |
| CN109688521A (en) * | 2018-12-29 | 2019-04-26 | 重庆蓝岸通讯技术有限公司 | A kind of loudspeaker, preparation method, wireless communication module and terminal device |
| CN109688521B (en) * | 2018-12-29 | 2020-10-16 | 重庆蓝岸通讯技术有限公司 | Loudspeaker, preparation method, wireless communication module and terminal equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |
|
| CX01 | Expiry of patent term |