CN102469390A

CN102469390A - Loudspeaker device with antenna structure and loudspeaker system

Info

Publication number: CN102469390A
Application number: CN2010105489444A
Authority: CN
Inventors: 杨忠谚
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2012-05-23
Anticipated expiration: 2030-11-18
Also published as: CN102469390B

Abstract

The invention discloses a loudspeaker system, comprising a circuit board and a loudspeaker device which is arranged in the circuit board. The loudspeaker device comprises a loudspeaker main body which is used for generating and transmitting a sound signal, and an antenna which is directly contacted and connected to the outer edge of the loudspeaker main body and used for receiving and transmitting the signal. The antenna is integrated in the loudspeaker main body, so the use space of the circuit board is increased, and the complexity of the wires on the circuit board and the manufacturing cost are reduced.

Description

Loudspeaker device and horn system with antenna structure

Technical field

The present invention relates to a kind of loudspeaker device, be meant a kind of loudspeaker device especially with antenna structure.

Background technology

In recent years, along with the change of market trend and the increase of user's demand, most communication device (for example: mobile phone, global positioning system etc.) all begins to improve towards compact and multi-functional target and progresses greatly.

With mobile phone, its antenna is not that to design on system circuit board be exactly extra being arranged in the mobile phone.Yet; In order to satisfy multi-functional demand; The electronic module of a plurality of difference in functionalitys is set already, for example: the loudspeaker of exportable conversation message, have the processor of computing and controlled function etc., therefore on the system circuit board; If will on system circuit board, increase antenna, will certainly compress the placing space of other electronic modules and the complexity that increases distribution on the circuit board.

Summary of the invention

The object of the present invention is to provide a kind of with the loudspeaker device and the horn system of aerial integration in speaker body.

Horn system of the present invention; Comprise the loudspeaker device that a circuit board and is arranged at this circuit board; Loudspeaker device comprises that one is used to produce the speaker body of a voice signal and output, and one directly contact and be connected in the outer rim of speaker body and be used to receive and send the antenna of signal, so with aerial integration in speaker body; The usage space on the circuit board be can increase, and the complexity and the cost of manufacture of distribution on the circuit board reduced.

Preferably; Speaker body comprise one be arranged at circuit board first housing,, second housing that can cover with first housing; And one be arranged at first housing and second enclosure interior the message enlarging section; Second housing has one and supplies the message enlarging section to expose and with the basket sky portion of voice signal output, antenna directly contacts and be connected in the end face of second housing, or is connected in one of them side of first housing and second housing.

Preferably; Speaker body also can comprise one first housing; And one be connected in this first housing the message enlarging section, the message enlarging section is used to produce voice signal and output, and antenna is directly connected in the message enlarging section and make the message enlarging section between the antenna and first housing.

Preferably; Antenna have one be connected in speaker body radiant body; And be connected to a feed-in section and a ground connection section of radiant body; Radiant body has the 3rd radiation arm that second radiation arm that first radiation arm, that extends along a direction extends along the bearing of trend perpendicular to first radiation arm by the end of first radiation arm, is extended along the bearing of trend that is parallel to first radiation arm by the end of second radiation arm; Reach the 4th radiation arm that an end edge by the 3rd radiation arm is parallel to the bearing of trend extension of second radiation arm, the free end of the free end of first radiation arm and the 4th radiation arm is spaced apart, makes radiant body form a rectangle loop.Further, the set-up mode of antenna also can be that radiant body is arranged at second housing with the mode of imbedding ejaculation.

In addition; One end of feed-in section is connected in second radiation arm and extends toward the direction of first housing; The other end of feed-in section is a feed side; One end of ground connection section is connected in second radiation arm and adjacent with the feed-in section, and extends along the bearing of trend that is parallel to the feed-in section, and the other end of ground connection section is an earth terminal.

Preferably, antenna is flat plane antenna, single-frequency or multifrequency antenna.

This circuit board of horn system of the present invention comprises the inductor that a weld pad, is electrically connected with weld pad; And the control unit that is electrically connected with inductor; Weld pad supplies the loudspeaker device welding and makes it be electrically connected on circuit board; Inductor is used for the resonance point of the vibration that the displacement speaker body produced, and control unit is used to produce an audio signal and audio signal is sent to this speaker body, to produce voice signal.

Useful effect of the present invention is: aerial integration on speaker body, can be increased the configuration space on the circuit board, and reduce the distribution complexity and the manufacturing cost of circuit board.

Description of drawings

Fig. 1 is the sketch map of first preferred embodiment of explanation horn system of the present invention;

Fig. 2 is the three-dimensional combination figure of loudspeaker device in explanation first preferred embodiment;

Fig. 3 is the three-dimensional exploded view of speaker body in explanation first preferred embodiment;

Fig. 4 is the three-dimensional combination figure that antenna is connected in the another kind enforcement aspect of speaker body in explanation first preferred embodiment;

Fig. 5 is the three-dimensional combination figure that antenna is connected in the another kind enforcement aspect of speaker body in explanation first preferred embodiment;

Fig. 6 is the block diagram of electronic component on the circuit board of explanation first preferred embodiment;

Fig. 7 is the reflection loss metric data figure of antenna when speaker body is worked in explanation first preferred embodiment;

Fig. 8 is the measured voltage standing wave ratio figure of explanation antenna;

Fig. 9 is the vertical view of explanation antenna at the 3-D of frequency 2.45GHz omnidirectional radiation field pattern figure;

Figure 10 is the upward view of explanation antenna at the 3-D of frequency 2.45GHz omnidirectional radiation field pattern figure;

Figure 11 is the end view of explanation antenna at the 3-D of frequency 2.45GHz omnidirectional radiation field pattern figure;

Figure 12 is the three-dimensional combination figure of loudspeaker device in second preferred embodiment of explanation horn system of the present invention;

Figure 13 is the three-dimensional combination figure of loudspeaker device in the 3rd preferred embodiment of explanation horn system of the present invention.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.

Consult Fig. 1 and Fig. 2; First preferred embodiment for horn system 100 of the present invention; This horn system 100 can be applicable in the various running gears; For example: Smartphone (Smart Phone), mobile phone, notebook computer (Notebook) and personal navigation machine (PND), global positioning system (GPS) etc.; Wherein comprise a circuit board 10 and and be arranged at the loudspeaker device 20 on the circuit board 10, this loudspeaker device 20 comprises that one is arranged on the circuit board 10 and the speaker body 30 of scalable message and output, and one be arranged at this speaker body 30 antenna 40; The present invention is by directly being integrated in antenna 40 on the speaker body 30, to reach configuration space that increases on the circuit board 10 and the effect of saving cost of manufacture.

Cooperate and consult Fig. 3; Speaker body 30 comprises that a loudspeaker housing 1, is arranged at the message enlarging section 2 of loudspeaker housing 1 inside; And two be connected in loudspeaker housing 1 connector 6; Loudspeaker housing 1 for the insulation material (for example: plastic cement) process, and have one be arranged at circuit board 10 first housing 11, and second housing 12 that can cover with first housing 11; Message enlarging section 2 comprises a magnetic element 21, a voice coil module 22, a plate washer spare 23 and an oscillating plate 24.Wherein, magnetic element 21 is magnet (Magnet) and is arranged in first housing 11; Voice coil module 22 is arranged between the magnetic element 21 and second housing 12; And has at least one coil groups (figure does not show); Voice coil module 22 is adjacent with magnetic element 21, makes voice coil module 22 energising backs produce magnetic field, can produce the phenomenon of attraction or mutual exclusion with magnetic element 21; Plate washer spare 23 is processed for elastic material, is used to supply magnetic element 21 to be arranged at wherein; Oscillating plate 24 is arranged between the voice coil module 22 and second housing 12, and is covered on the voice coil module 22, makes that voice coil module 22 can drive oscillating plate 24 starts and produce a voice signal when attraction or mutual exclusion were arranged between voice coil module 22 and magnetic element 21; Second housing 12 is generally rectangular, and has the basket sky portion 121 of a position corresponding to oscillating plate 24, is used to make the oscillating plate 24 of message enlarging section 2 to expose and with this sound message output.Said connector 6 is a metal hook, and is connected to the outside of first housing 11, is used to be electrically connected on circuit board 10 to transmit this voice signal.

Consult Fig. 1 and Fig. 2, antenna 40 be an inverted F shaped antenna (Planar Inverted F Antenna, PIFA), but not as limit.Antenna 40 have one be laid in the end face of second housing 12 radiant body 3; And be connected to a feed-in section 4 and a ground connection section 5 of radiant body 3; Radiant body 3 has one and is laid in a short side of second housing 12 and extends the 3rd radiation arm 33 that second radiation arm 32 that first radiation arm 31, of (being the Z axle) extends along the bearing of trend (being the X axle) perpendicular to first radiation arm 31 by the end of this first radiation arm 31, is extended along the bearing of trend that is parallel to first radiation arm 31 by the end of this second radiation arm 32 along this weak point side, and one by the end of the 3rd radiation arm 33 the 4th radiation arm 34 along the bearing of trend extension that is parallel to second radiation arm 32.

First radiation arm 31 and the 3rd radiation arm 33 are laid in two short sides of second housing 12 respectively; Second radiation arm 32 and the 4th radiation arm 34 are laid in two long sides of second housing 12 respectively; And the free end of the free end of first radiation arm 31 and the 4th radiation arm 34 (defining a breach) spaced apart; Make radiant body 3 form a rectangle loop, and an operational frequency bands is provided, and the shape of loop is not exceeded with rectangle.The length of radiant body 3 equals 1/4 of electromagnetic signal wavelength; And but this operational frequency bands circle is between the 1GHz to 6GHz, and in the present embodiment, this operational frequency bands then is 2.4GHz; Meet 2.4GHz radio area network (Wireless Local Area Network; WLAN) application, but also can cooperate different user demands and change, for example: wireless high fax (Wireless fidelity; Wi-Fi), global microwave interconnection insert (World Interoperability for Microwave Access, WiMAX), Bluetooth system (Bluetooth), global positioning system (GPS), global system for mobile communications (GSM) and broadband CDMA system (WCDMA) etc.

One end of feed-in section 4 is connected in second radiation arm 32, and the direction vertical extent (being the Y axle) of these feed-in section 4 past first housings 11, and the other end of feed-in section 4 is feed side (feed-in point) 41 and is electrically connected on circuit board 10; One end of ground connection section 5 is connected in second radiation arm 32 and adjacent with feed-in section 4; And this ground connection section 5 is extended along the bearing of trend that is parallel to feed-in section 4; The other end of ground connection section 5 is earth terminal (ground point) 51 and is electrically connected on circuit board 10 that certainly, feed-in section 4 is not exceeded with present embodiment with the position of ground connection section 5.

The antenna 40 of present embodiment is a metal material, and radiant body 3, feed-in section 4 and ground connection section 5 are one-body molded, and after antenna 40 completes; Directly be attached at contiguously on the end face of second housing 12; So that antenna 40 is integrated in speaker body 30, make circuit board 10 will no longer need the placing space of additional configuration antenna, not only increase the useful space (promptly having more unnecessary space can put other electronic components) of circuit board 10; Also reduce the integral thickness of running gear; And reduce the distribution degree of difficulty of circuit board 10 simultaneously, in addition, antenna 40 directly is attached on the speaker body 30 after speaker body 30 completes again; That is to say; The structure of antenna 40 changes according to different user demands or when adjusting, speaker body 30 need not cooperate antenna 40 to do corresponding modification, therefore can not increase the extra cost of manufacture of speaker body 30.In addition; The position that antenna 40 is connected in loudspeaker housing 1 is not limited to the end face of second housing 12; Also can be around the side that is arranged at loudspeaker housing 1; Promptly directly contact and be connected in first housing 11 and second housing, 12 one of them side (as shown in Figure 4), and antenna 40 also can utilize engaging, welding, shell fragment, thimble, mode such as paste is connected in loudspeaker housing 1, does not all exceed with present embodiment.

In addition; Consult Fig. 5; Ground connection section 5 also can be extended along the direction near first housing 11 in contrast to an end (being earth terminal 51) that connects second radiation arm 32; And be connected on first housing 11, make ground connection section 5 to be connected with a system ground of circuit board 10 through speaker body 30, so can save the quantity of pin on the circuit board 10.

Consult Fig. 6, the circuit board 10 of present embodiment comprises a weld pad (PAD) 60, an inductor 70 and a control unit 80, and loudspeaker device 20 can be welded in the weld pad 60 of circuit board 10 after completing, to be electrically connected with circuit board 10.Weld pad 60 can be for a plurality of, the pin count of the corresponding loudspeaker device 20 of its quantity meeting.Because the message enlarging section 2 of speaker body 30 can produce vibration (voice coil module 22 and oscillating plate 24 all can vibrate) when running; So in order not influence the normal reception/transmission signal of antenna 40; Between weld pad 60 and control unit 80, can be electrically connected inductor 70, be moved to resonance point outside the operational frequency bands of antenna 40 message enlarging section 2; Control unit 80 is used to produce an audio signal, and through weld pad 60 and connector 6 this audio signal is sent to message enlarging section 2 and produces this voice signal.

Consult Fig. 7; Reflection loss (Return Loss) the metric data figure of antenna 40 when speaker body 30 is worked for present embodiment can learn the about 83MHz of impedance frequency range of the reflection loss measuring value 6dB of antenna 40 through experiment; Be between the 2.4GHz to 2.483GHz; Can reach the radiation efficiency basic demand of antenna, also meet the standard of 2.4GHz radio area network or 802.11b/g/n, so present embodiment can be applicable in the radio area network really.

Referring to Fig. 8; Be the antenna 40 of present embodiment measured voltage standing wave ratio (Voltage Standing Wave Ratio when speaker body 30 work; VSWR) value; And antenna 40 operate in the total radiant power that measures between the 2.4GHz to 2.483GHz (Total Radiated Power, TRP), equivalent isotropically radiated power (Effective Isotropic Radiated Power, EIRP) and radiation efficiency (Radiation Efficiency) data as shown in table 1.In addition, by knowing shown in Fig. 8, in the operational frequency bands scope (being between the 2.4GHz to 2.483GHz), the voltage standing wave(VSW) ratio of antenna 40 satisfies user demand all less than 3.

Table one

Consult Fig. 9 to Figure 11, the 3-D radiation pattern figure when operating in frequency 2.45GHz for antenna 40, wherein among each figure respectively to overlook (Fig. 9), to look up three angles of (Figure 10) and side-looking (Figure 11) and show this 3-D radiation pattern.So, can know that by Fig. 9 to Figure 11 when speaker body 30 was worked, its antenna 40 still had higher antenna gain to reach omni-directional preferably, in radio area network through horn system 100.

Consult Figure 12; Be second preferred embodiment of horn system 100 of the present invention, roughly identical with first preferred embodiment, its difference is; Speaker body 30 can be saved second housing 12 (Fig. 2) and directly antenna 40 is connected on the message enlarging section 2; That is to say that second housing 12 that antenna 40 may instead be speaker body 30 uses, and so can reach usage space that increases on the circuit board 10 and the effect that reduces the whole thickness of product equally.

Consult Figure 13; The 3rd preferred embodiment for horn system 100 of the present invention; Roughly identical with first preferred embodiment, its difference is that the radiant body 3 of antenna 40 directly is made in second housing 12; Be that radiant body 3 is arranged at second housing 12 with the mode of imbedding ejaculation; Make speaker body 30 possess outward appearance originally with conceal antenna 40, so antenna 40 can be integrated in speaker body 30 equally, the complexity and the cost of manufacture of distribution on usage space on the increase circuit board 10 and the reduction circuit board 10.

In sum; Horn system 100 of the present invention is through being integrated in antenna 40 in the speaker body 30; Not only can increase the usage space on the circuit board 10, reduce the whole thickness of product simultaneously, also reduce the complexity and the cost of manufacture of distribution on the circuit board 10; And antenna 40 still can keep higher antenna gain to reach omni-directional preferably, so can reach the object of the invention really.

Claims

1. loudspeaker device with antenna structure is characterized in that:

This loudspeaker device comprises:

One speaker body is used to produce a voice signal and output;

One antenna directly contacts and is connected in the outer rim of this speaker body, is used for receiving and sending signal.

2. the loudspeaker device with antenna structure according to claim 1; It is characterized in that: this speaker body comprises second housing that one first housing, can cover with this first housing; And one be arranged at this first housing and this second enclosure interior the message enlarging section; This message enlarging section is used to produce this voice signal and output; This second housing has one and supplies this message enlarging section to expose and with the basket sky portion of this voice signal output, this antenna directly contacts and be connected in the end face of this second housing.

3. the loudspeaker device with antenna structure according to claim 1; It is characterized in that: this speaker body comprises second housing that one first housing, can cover with this first housing; And one be arranged at this first housing and this second enclosure interior the message enlarging section; This message enlarging section is used to produce this voice signal and output; This second housing has one and supplies this message enlarging section to expose and with the basket sky portion of this voice signal output, this antenna directly contacts and be connected in this first housing and this one of them side of second housing.

4. the loudspeaker device with antenna structure according to claim 1; It is characterized in that: this speaker body comprises one first housing; And one be connected in this first housing the message enlarging section; This message enlarging section is used to produce this voice signal and output, and this antenna is directly connected in this message enlarging section and makes this message enlarging section between this antenna and this first housing.

5. the loudspeaker device with antenna structure according to claim 1; It is characterized in that: this speaker body comprises second housing that one first housing, can cover with this first housing; And one be arranged at this first housing and this second enclosure interior the message enlarging section; This message enlarging section is in order to produce this voice signal and output; This second housing has one and supplies this message enlarging section to expose and with the basket sky portion of this sound message output; This antenna have one be connected in this speaker body radiant body; And be connected to a feed-in section and a ground connection section of this radiant body; This radiant body has the 3rd radiation arm that second radiation arm that first radiation arm, that extends along a direction extends along the bearing of trend perpendicular to this first radiation arm by the end of this first radiation arm, is extended along the bearing of trend that is parallel to this first radiation arm by the end of this second radiation arm, and the 4th radiation arm that extended along the bearing of trend that is parallel to this second radiation arm by the end of the 3rd radiation arm, and the free end of the free end of this first radiation arm and the 4th radiation arm is spaced apart; Make this radiant body form a rectangle loop, this radiant body is arranged at this second housing with the mode of imbedding ejaculation.

6. according to the described loudspeaker device of the wherein arbitrary claim of claim 2 to 4 with antenna structure; It is characterized in that: this antenna have one be connected in this speaker body radiant body; And be connected to a feed-in section and a ground connection section of this radiant body; This radiant body has the 3rd radiation arm that second radiation arm that first radiation arm, that extends along a direction extends along the bearing of trend perpendicular to this first radiation arm by the end of this first radiation arm, is extended along the bearing of trend that is parallel to this first radiation arm by the end of this second radiation arm; Reach the 4th radiation arm that an end edge by the 3rd radiation arm is parallel to the bearing of trend extension of this second radiation arm; The free end of the free end of this first radiation arm and the 4th radiation arm is spaced apart, makes this radiant body form a rectangle loop.

7. the loudspeaker device with antenna structure according to claim 6; It is characterized in that: an end of this feed-in section is connected in this second radiation arm; And this feed-in section is extended toward the direction of this first housing, and the other end of this feed-in section is a feed side, and an end of this ground connection section is connected in this second radiation arm and adjacent with this feed-in section; And this ground connection section is extended along the bearing of trend that is parallel to this feed-in section, and the other end of this ground connection section is an earth terminal.

8. the loudspeaker device with antenna structure according to claim 1 is characterized in that: this antenna is flat plane antenna, single-frequency or multifrequency antenna.

9. horn system is characterized in that:

This horn system comprises:

One circuit board;

One loudspeaker device is arranged at this circuit board, and comprises:

One speaker body is used to produce a voice signal and output;

10. horn system according to claim 9; It is characterized in that: this circuit board comprises the inductor that a weld pad, is electrically connected with this weld pad; And the control unit that is electrically connected with this inductor, this this loudspeaker device of weld pad confession welds and makes it be electrically connected on this circuit board, and this inductor is used for the resonance point of the vibration that this speaker body of displacement produced; This control unit is used to produce an audio signal and this audio signal is sent to this speaker body, to produce this voice signal.