CN201608880U - Loudspeaker system with antenna - Google Patents
Loudspeaker system with antenna Download PDFInfo
- Publication number
- CN201608880U CN201608880U CN2009202601869U CN200920260186U CN201608880U CN 201608880 U CN201608880 U CN 201608880U CN 2009202601869 U CN2009202601869 U CN 2009202601869U CN 200920260186 U CN200920260186 U CN 200920260186U CN 201608880 U CN201608880 U CN 201608880U
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- Prior art keywords
- voice coil
- output circuit
- radio
- frequency
- coil
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to the field of loudspeaker systems, in particular to a loudspeaker system with an antenna and the function of short-distance communication. A coil manufactured by winding is arranged on the surface of a front cover facing the direction of a vibration film; the coil is electrically connected with a voice coil; and the coil with small volume occupies no additional larger space. Compared with a traditional loudspeaker system, the loudspeaker system has a larger radiation surface and more obvious performance advantages.
Description
[technical field]
The utility model relates to the speaker system field, specifically refers to a kind of speaker system with 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 with 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 provided with the loop configuration coil that the winding of transmitting electromagnetic wave signal is made towards the surface of vibrating diaphragm direction, this coil is electrically connected with voice coil loudspeaker voice coil.
Preferably, offer sound penetrating hole on the described protecgulum, coil and sound penetrating hole are not overlapping.
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 provided with the coil that winding is made towards the surface of vibrating diaphragm direction at protecgulum, this coil is electrically connected with voice coil loudspeaker voice coil, described winding volume is little, do not take bigger space in addition, compare thinlyyer with traditional, have bigger radiating surface, performance advantage is more obvious.
[description of drawings]
Fig. 1 is a blast structural representation of the present utility model;
Fig. 2 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 protecgulum 10 is provided with the loop configuration coil 11 that the winding of transmitting electromagnetic wave signal is made towards the surface of vibrating diaphragm direction, this coil 11 is electrically connected with voice coil loudspeaker voice coil 22, and the coil 11 of loop configuration more can save more space; In order not influence sound effect, offer the sound penetrating hole (not shown) on the described protecgulum 10, coil 11 is not overlapping with sound penetrating hole, so just avoids coil 11 to be subjected to extraneous the damage yet.Described coil 11 is compared with traditional antenna, can do extremely thinly under the constant situation of performance, and fixation, has the advantage of thinner swept area especially in super-thin speaker, and performance advantage is more obvious.
As shown in Figure 2, 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 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, 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 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 with 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 provided with the loop configuration coil that the winding of transmitting electromagnetic wave signal is made towards the surface of vibrating diaphragm direction, this coil is electrically connected with voice coil loudspeaker voice coil.
2. the speaker system with antenna according to claim 1 is characterized in that: offer sound penetrating hole on the described protecgulum, coil and sound penetrating hole are not overlapping.
3. the speaker system with 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 |
|---|---|---|---|
| CN2009202601869U CN201608880U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system with antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202601869U CN201608880U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system with antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608880U true CN201608880U (en) | 2010-10-13 |
Family
ID=42953580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202601869U Expired - Lifetime CN201608880U (en) | 2009-11-09 | 2009-11-09 | Loudspeaker system with antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113840214A (en) * | 2021-09-28 | 2021-12-24 | 维沃移动通信有限公司 | Loudspeaker module, loudspeaker, signal processing system and mobile terminal |
-
2009
- 2009-11-09 CN CN2009202601869U patent/CN201608880U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113840214A (en) * | 2021-09-28 | 2021-12-24 | 维沃移动通信有限公司 | Loudspeaker module, loudspeaker, signal processing system and mobile terminal |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |