CN104640032A - Loudspeaker - Google Patents

Abstract

A loudspeaker comprises a base, an acoustic reflection plate on one side of the base, an acoustic generator fixed on the acoustic reflection plate, an adjusting member movably arranged on the other side of the base, a connection connected between the acoustic reflection plate and the adjusting member, a support frame and a control module. The adjusting member is provided with a plurality of magnetic traction plates. The support frame is provided with a plurality of first electromagnets right facing the magnetic traction plates. The control module controls the first electromagnets to suck the corresponding magnetic traction plates, accordingly deviating the adjusting member, and the connection is driven to move so as to move the acoustic reflection plate. The loudspeaker has the advantages that the control module controls the first electromagnets to drive the magnetic traction plates of the adjusting member, and the adjusting member is moved to drive the connection to rotate so as to move the acoustic reflection plate to move, leading to use convenience.

Description

Loud speaker

Technical field

The present invention relates to a kind of loud speaker.

Background technology

Loud speaker is the energy transducer for the signal of telecommunication being changed into acoustical signal, and it is made up of permanent magnet, voice coil loudspeaker voice coil, vibrating diaphragm and frame.Described permanent magnet is used for providing magnetic field, when passing to electric current in voice coil loudspeaker voice coil, voice coil loudspeaker voice coil will be subject to the effect of power in magnetic field, change because of electric current power produces the vibrations of different frequency, and then drive the vibrating diaphragm covered in frame to send different frequency and strong and weak sound, just define the sound that can be humanly perceptible when these motions reach certain frequency.

The frame of traditional loud speaker is inner concavity, the sound wave that loud speaker produces is that the mode spread is launched, during distant between viewer and loud speaker, due to the interference of noise in the decay of intensity of acoustic wave and space, make to be positioned at the sound effect cannot experiencing the sound wave that loud speaker is launched compared with the viewer of distant positions accurately, for this reason, usually regulate the frame of this loud speaker in a manual fashion, make this frame just to viewer, but this kind of regulative mode inconvenient operation.

Summary of the invention

In view of this, be necessary to provide the remote directed transmission sound wave of a kind of energy and easy to operate loud speaker.

A kind of loud speaker, it comprises a pedestal, the one acoustic reflection sheet being located at this pedestal side, one sound wave generating device being fixed on this acoustic reflection sheet, one regulating part being located at this pedestal opposite side movably, one is connected to the connector between this acoustic reflection sheet and this regulating part, one bracing frame and a control module, this regulating part is provided with some Magnetic force tracting sheets, this bracing frame is provided with some difference just to the first electromagnet of these Magnetic force tracting sheets, this control module controls Magnetic force tracting sheet corresponding to the first electromagnet absorption respectively, this regulating part is offset and then drives this connector move and this acoustic reflection sheet is moved.

Compare prior art, loud speaker provided by the invention controls the Magnetic force tracting sheet of first this adjustment sheet of solenoid actuated by this control module, this adjustment sheet is moved and drives this connector rotate and this acoustic reflection sheet is moved, and operates this loud speaker convenient; This sound wave generating device compartment of terrain just to the reflecting surface of the inner concavity of this acoustic reflection sheet, the sound wave that sound wave generating device is produced through acoustic reflection sheet reflection after intent propagation.

Accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of the better embodiment of loud speaker of the present invention.

Fig. 2 is the view at another visual angle of Fig. 1.

Fig. 3 is the three-dimensional assembly diagram of Fig. 1.

Fig. 4 is the three-dimensional assembly diagram of Fig. 2.

Fig. 5 to Fig. 6 is the using state figure of loud speaker of the present invention.

Main element symbol description

Loud speaker 100

Viewer 300

Sound wave generating device 10

Fixed mount 12

Source of sound assembly 15

Mounting blocks 121

Grab 123

Clamping hole 125

Acoustic reflection sheet 20

Reflecting surface 21

Through hole 23

Pedestal 30

Backstay 32

Accepting hole 33

Control module 40

Watch-dog 42

Controller 45

Regulating part 50

Adjustment sheet 52

Magnetic force tracting sheet 53

Fixing hole 522

Bracing frame 60

Framework 62

Support bar 63

First electromagnet 65

Backboard 621

Intermediate plate 625

Receiving space 626

Slide guide hole 627

Location hole 628

Connecting portion 632

Projection 635

Activity space 637

Positioning component 70

Second electromagnet 72

Elastic component 74

Keeper 76

Magnetic contact pin 762

Location division 763

Slide guide bar 765

Connector 80

Rotating part 82

Connecting rod 83

Fixed part 85

Fixing hole 852

Slip ring 90

Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Embodiment

As shown in Figures 1 and 2, the better embodiment of loud speaker 100 of the present invention is used for viewer 300(as shown in Figure 6) remote directional propagation sound.This loud speaker 100 comprises sound wave generating device 10, acoustic reflection sheet 20, pedestal 30, control module 40, regulating part 50, bracing frame 60, positioning component 70, a connection piece 80 and a slip ring 90.

This sound wave generating device 10 comprises fixed mount 12 and a source of sound assembly 15.This fixed mount 12 comprises a mounting blocks 121 and is outward extending equably three grabs 123 of emitting shape from the surrounding of this mounting blocks 121.The medial surface of this mounting blocks 121 offers one for accommodating the clamping hole 125 of this source of sound assembly 15.

This acoustic reflection sheet 20 is in spherical crown shape, and this acoustic reflection sheet 20 inside is vacuum.This acoustic reflection sheet 20 comprises a reflecting surface 21, and the area of this reflecting surface 21 is greater than described source of sound assembly 15 just to the external surface area of this reflecting surface 21.A through hole 23 is offered at the middle part of this acoustic reflection sheet 20.

This pedestal 30 comprises two backstays 32 intersected vertically, and an accepting hole 33 is offered in the intersection of this two backstay 32.

This control module 40 comprises watch-dog 42 and a controller 45.This watch-dog 42 and controller 45 are fixedly arranged on the two ends of the longer backstay 32 of this pedestal 30.This watch-dog 42 towards with reflecting surface 21 towards identical.In present embodiment, described watch-dog 42 is camera assembly, and it is for monitoring the viewer 300 in its angular field of view.Be appreciated that described watch-dog 42 also can for infrared ray, magnetic induction etc. other can the device of the concrete position of perception viewer 300.Described watch-dog 42 also can be installed in the position that other is beneficial to monitoring.This controller 45 is electrically connected with watch-dog 42.

This regulating part 50 comprises the adjustment sheet 52 of a spherical crown shape and is located at the Magnetic force tracting sheet 53 of this adjustment sheet 52 surrounding equably.Each Magnetic force tracting sheet 53 is fabricated from iron.Each Magnetic force tracting sheet 53 is inwardly arranged obliquely.A fixing hole 522 is offered at the middle part of this adjustment sheet 52.

This bracing frame 60 comprises a framework 62, is outward extending obliquely four support bars 63 of emitting shape and four the first electromagnet 65 from the periphery of this framework 62.This framework 62 comprises relatively and backboard 621 and the intermediate plate 625 arranged that keep at a certain distance away.A receiving space 626 is provided with between this backboard 621 and this intermediate plate 625.The slide guide hole 627 of this receiving space 626 through is offered at the middle part of this intermediate plate 625.This backboard 621 just offers a location hole 628 to this slide guide hole 627 place.Each support bar 63 comprises one away from the connecting portion 632 of this framework 62 and this connecting portion 632 contiguous and a projection 635 of inwardly projection.These four the first electromagnet 65 are fixed on the side that four projections 635 face framework 62.This four support bar 63 surrounds an activity space 637.

This positioning component 70 comprises one second electromagnet 72, elastic component 74 and positioning piece 76.This keeper 76 comprises magnetic contact pin 762, one compartment of terrain and is just removably connected to the slide guide bar 765 between this magnetic contact pin 762 and this location division 763 to the location division 763 and of this magnetic contact pin 762.In present embodiment, this location division 763 is a sucker, and this elastic component 74 is a spring, and magnetic contact pin 762 is an iron plate.This controller 45 and the first electromagnet 65 and the second electromagnet 72 are electrically connected.

This connector 80 comprise a spherical rotating part 82, the connecting rod 83 from the outside projection in the side of this rotating part 82 and the opposite side outside projection relative with connecting rod 83 from this rotating part 82 one just to the fixed part 85 of this connecting rod 83.A fixing hole 852 is offered along the axis of this connecting rod 83 in the middle part of this fixed part 85.

See also Fig. 3 and Fig. 4, during assembling, this second electromagnet 72 to be contained in this receiving space 626 and to be fixed on the location hole 628 of this backboard 621.On this keeper 76, pull down this magnetic contact pin 762, this elastic component 74 is sheathed on this slide guide bar 765, and this slide guide bar 765 is slidably inserted in the slide guide hole 627 of this intermediate plate 625 from this activity space 637.This magnetic contact pin 762 to be contained in this receiving space 626 and to be fixed in this slide guide bar 765, the location division 763 of this keeper 76 is contained in this activity space 637.This elastic component 74 is flexibly supported between this intermediate plate 625 and this location division 763.This slip ring 90 is installed in the accepting hole 33 of this pedestal 30.This connector 80 to be inserted in this slip ring 90 and the rotating part 82 of this connector 80 is located in this slip ring 90 actively.The end of the connecting rod 83 of this connector 80 is plugged in the fixing hole 522 of this regulating part 50, makes Magnetic force tracting sheet 53 towards this pedestal 30.The outer surface of this acoustic reflection sheet 20 is close to the fixed part 85 of this connector 80, and makes the through hole 23 of this acoustic reflection sheet 20 just to the fixing hole 852 of this fixed part 85.One screw is fixed in the fixing hole 852 of this connector 80 through the through hole 23 of this acoustic reflection sheet 20.The connecting portion 632 of this bracing frame 60 is fixed on the backstay 32 of this pedestal 30, this regulating part 50 is made to be contained in the activity space 637 of this bracing frame 60, make the Magnetic force tracting sheet 53 of this regulating part 50 respectively just to corresponding first electromagnet 65, and accepting hole 33 axial line of this pedestal 30 is coaxial with the axial line of the slide guide hole 627 of this bracing frame 60.Now, this elastic component 74 pushes this location division 763, makes this location division 763 be adsorbed on this adjustment sheet 52 and locate this regulating part 50.This source of sound assembly 15 is installed in the clamping hole 125 of this fixed mount 12.The grab 123 of fixed mount 12 is fastened on this acoustic reflection sheet 20 periphery, makes this source of sound assembly 15 just to this acoustic reflection sheet 20.

See also Fig. 5 and Fig. 6, during use, the image information that this controller 45 RX monitor 42 gathers, and human face analysis is carried out to this image information, to determine the position of the face of viewer 300 in whole image.Then, described controller 45 calculates the position of face in image and the deflection angle at image geometry center and yawing moment.This controller 45 controls this second electromagnet 72 and is energized, this second electromagnet 72 adsorbs the magnetic contact pin 762 of this keeper 76, the slide guide bar 765 of this keeper 76 slides along the slide guide hole 627 of this bracing frame 60 and makes this location division 763 remove the absorption with this adjustment sheet 52, and strain occurs this elastic component 74.This controller 45 controls the first electromagnet 65 and is energized or power-off, first electromagnet 65 is adsorbed or supports corresponding Magnetic force tracting sheet 53 and adjustment sheet 52 is moved, this adjustment sheet 52 drives this connector 80 movable, and the reflecting surface 21 that this connector 80 drives this sound wave generating device 10 to move to make acoustic reflection sheet 20 is toward the face of viewer 300.This controller 45 controls this second electromagnet 72 and is energized, and this elastic component 74 recovers deformation and pushes this location division 763, makes this location division 763 hold this adjustment sheet 52 and locate this sound wave generating device 10.

Claims (10)

1. a loud speaker, it comprises a pedestal, the one acoustic reflection sheet being located at this pedestal side, one sound wave generating device being fixed on this acoustic reflection sheet, one regulating part being located at this pedestal opposite side movably, one is connected to the connector between this acoustic reflection sheet and this regulating part, one bracing frame and a control module, this regulating part is provided with some Magnetic force tracting sheets, this bracing frame is provided with some difference just to the first electromagnet of these Magnetic force tracting sheets, this control module controls Magnetic force tracting sheet corresponding to the first electromagnet absorption respectively, this regulating part is offset and then drives this connector move and this acoustic reflection sheet is moved.

2. loud speaker as claimed in claim 1, it is characterized in that: this pedestal is offered an accepting hole, this connector comprises and one is contained in rotating part in this accepting hole actively, is connected to the connecting rod of this regulating part and is connected to the fixed part of this sound wave generating device from the outside projection one of this rotating part from one of the outside projection of this rotating part.

3. loud speaker as claimed in claim 1, is characterized in that: this regulating part comprises the adjustment sheet of a spherical crown shape, and these Magnetic force tracting sheets are located at the periphery of this adjustment sheet equably.

4. loud speaker as claimed in claim 3, is characterized in that: each Magnetic force tracting sheet is fabricated from iron.

5. loud speaker as claimed in claim 3, it is characterized in that: this bracing frame comprises a framework and stretches out obliquely from the periphery of this framework and be fixed on some support bars of this pedestal, these first electromagnet are fixed on the end of support bar away from this framework, and this adjustment sheet is located between the support bar of this bracing frame.

6. loud speaker as claimed in claim 5, it is characterized in that: this framework comprises relatively and the keep at a certain distance away backboard and an intermediate plate that arrange, a receiving space is provided with between this backboard and this intermediate plate, the slide guide hole of this receiving space through is offered at the middle part of this intermediate plate, this loud speaker also comprises the positioning component of this regulating part of location, this positioning component is included in one and is contained in this receiving space and is fixed on one second electromagnet of this backboard, one keeper and be inserted in slidably in this slide guide hole is flexibly supported on the elastic component between this keeper and this intermediate plate, this elastic component supports this keeper and locates this adjustment sheet, this controller is electrically connected at this second electromagnet, and control the absorption of this second electromagnet or depart from this keeper to make this keeper depart from or locate this adjustment sheet.

7. loud speaker as claimed in claim 6, is characterized in that: this keeper comprises the magnetic contact pin, one that can be adsorbed in this second electromagnet slide guide bar and be located at slidably in this slide guide hole and is located at the location division that this slide guide bar can adsorb this adjustment sheet.

8. loud speaker as claimed in claim 7, is characterized in that: this location division is a sucker.

9. loud speaker as claimed in claim 1, is characterized in that: this acoustic reflection sheet is spherical crown shape, and it comprises the reflecting surface of an inner concavity, and this sound wave generating device comprises this pronunciation component kept at a certain distance away with acoustic reflection sheet.

10. loud speaker as claimed in claim 9, it is characterized in that: this control module comprises a watch-dog and a controller, this watch-dog to be fixed on this pedestal and this watch-dog towards with reflecting surface towards identical, this watch-dog is used for monitoring viewer, and this controller is electrically connected at this watch-dog and the first electromagnet.