CN106559728A

CN106559728A - Planar diaphragm speaker

Info

Publication number: CN106559728A
Application number: CN201710003595.XA
Authority: CN
Inventors: 杨方友
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-01-04
Filing date: 2017-01-04
Publication date: 2017-04-05
Anticipated expiration: 2037-01-04
Also published as: CN106559728B

Abstract

The present invention is applied to loudspeaker techniques field, there is provided a kind of planar diaphragm speaker includes vibrational system and field system, and vibrational system includes vibrating diaphragm conductor component and upper gasket and lower gasket, and upper gasket is provided with two vias；Vibrating diaphragm conductor component includes vibrating diaphragm body, coat, conductor structure, and conductor structure is entwined with double helix pattern by wire and two free ends correspond to two vias of upper gasket respectively.The planar diaphragm speaker lifts low frequency audio by coating one layer of coat in vibrating diaphragm body surface to strengthen the weight in vibrating diaphragm body central region；And wire is wound with double helix pattern in coating layer surface, so that coat is covered and fills up the region of vibrating diaphragm body by conductor structure that Jing is wound completely, so that vibrating diaphragm body is fully used, make entirely farthest to be utilized for the driver under stress of system, so that the sensitivity of planar diaphragm speaker is greatly improved.

Description

Planar diaphragm speaker

Technical field

The invention belongs to loudspeaker techniques field, more particularly to a kind of planar diaphragm speaker.

Background technology

Loudspeaker, also known as " loudspeaker ", is a kind of very conventional electro-acoustic transducer device, in the electronic electric equipment of sounding Using very universal.Dynamic speaker is also called coil-moving speaker, it be using it is electronic away from electro-acoustic transducer device.Electricity Loudspeaker, because of extensive favor the features such as its simple structure, easy production, function admirable by user, is to use at present most Many and widest loudspeaker.

Planar diaphragm speaker is the one kind in loudspeaker, and traditional planar diaphragm speaker typically adopts multiple bar shaped magnetic Plane diaphragm is sandwiched in iron the form composition of centre, and which has following several respects in manufacture：The fixation of multi-disc magnet, needs Want the dislocation of special tool, otherwise magnet tool affect the vibration balancing of whole loudspeaker；Massive magnet increases The volume and weight of loudspeaker itself；Loudspeaker holistic cost is caused to increase.

However, for planar diaphragm speaker, how so that the sensitivity of vibrating diaphragm uniform force and lifting loudspeaker Technical problem urgently to be resolved hurrily is become.

The content of the invention

It is an object of the invention to provide a kind of planar diaphragm speaker, it is intended to how to cause vibrating diaphragm in solving prior art The technical problem of the sensitivity of uniform force and lifting loudspeaker.

The present invention is achieved in that a kind of planar diaphragm speaker, including vibrational system and field system, the vibration System includes vibrating diaphragm conductor component and the upper gasket being oppositely arranged and lower gasket, the upper gasket and the lower gasket along described Vibrating diaphragm conductor component thickness direction is stacked, and the upper gasket is provided with two vias；Wherein, the vibrating diaphragm conductor component bag Include：

Vibrating diaphragm body, the vibrating diaphragm body include that back to the first surface and second surface for arranging the upper gasket is solid On the first surface and near the edge of the first surface, the upper gasket is fixed on the second surface and leans on The edge of the nearly second surface；

Coat, the coat are formed on the first surface of the vibrating diaphragm body；

Conductor structure, the conductor structure are covered on the coat, and are wound with double helix pattern by a wire Form, the wire is wound from the center from coil to coil of the vibrating diaphragm body to the edge coils of the vibrating diaphragm body, the wire Two free ends be located at formed conductor structure outside and respectively correspond to the upper gasket two described in via.

Further, the coat is formed at the first surface of the vibrating diaphragm body using spraying or barbola work On, and the coat is located at the central area of the vibrating diaphragm body.

Further, the wire has first end and the second end for being the free end, and the first end and institute State the homonymy that the second end is respectively positioned on the conductor structure.

Further, the upper gasket and the lower gasket are circulus, and the first surface of the vibrating diaphragm body is drawn It is divided into and is coated with the coating zone of the coat, the FX of the upper gasket is fixedly installed and the coating area is located at Interval region between domain and the FX, the conductor structure are completely covered the coat and extend to the interval In region.

Further, the wire is formed in the coat and the interval region with etching mode.

Further, aluminum conductor of the wire for flat.

Further, the hand of spiral of the double helix pattern adopted by the wire is consistent.

Further, the conductor structure is located at the inner side of the upper gasket.

Further, the spiral-shaped shape with the vibrating diaphragm body formed with double helix pattern winding by the wire It is identical.

Further, the center of the vibrating diaphragm body, the coat and the conductor structure is conllinear.

Further, the field system includes front field system and rear field system, the front field system and described Field system is coaxial afterwards and is symmetrical arranged relative to the vibrational system.

Having the technical effect that relative to prior art of the invention：The planar diaphragm speaker is by described this body surface of vibrating diaphragm Face coats one layer of coat, to strengthen the weight in the vibrating diaphragm body central region, lifts low frequency audio；And in the painting Clad surface winds the wire with double helix pattern, so that the conductor structure that Jing is wound is completely by the coat The region of the vibrating diaphragm body is covered and filled up, so that the vibrating diaphragm body is fully used, is made whole described for system Driver under stress farthest utilized so that the sensitivity of the planar diaphragm speaker is greatly carried Rise.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to the embodiment of the present invention or prior art Needed for description, accompanying drawing to be used is briefly described, it should be apparent that, drawings described below is only the present invention's Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this A little accompanying drawings obtain other accompanying drawings.

Fig. 1 is the structure chart of vibrational system provided in an embodiment of the present invention；

Fig. 2 is the sectional view of vibrational system in Fig. 1；

Fig. 3 is the partial enlarged drawing of III in Fig. 2；

Fig. 4 is the exploded view of vibrational system in Fig. 1.

Description of reference numerals：

10	Vibrating diaphragm conductor component	14	Coat
				12	Vibrating diaphragm body	16	Conductor structure
122	First surface	160	First end
				1220	Coating zone	162	Second end
1224	FX	20	Upper gasket
				1226	Interval region	22	Via
124	Second surface	30	Lower gasket

10

Specific embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.

In describing the invention, it is to be understood that term " length ", " width ", " on ", D score, "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " is based on accompanying drawing institute The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention limit System.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more, Unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings Condition understands above-mentioned term concrete meaning in the present invention.

In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right The present invention is further elaborated.

Refer to Fig. 1 to Fig. 4, planar diaphragm speaker provided in an embodiment of the present invention include vibrational system (sign) and Field system (not shown), the vibrational system adopt one side bifilar helix voice coil vibrations structure, and including vibrating diaphragm conductor component 10 and the upper gasket 20 that is oppositely arranged and lower gasket 30, the upper gasket 20 and the lower gasket 10 are along the vibrating diaphragm conductor group 10 thickness direction of part is stacked, and the upper gasket 20 is provided with two vias 22；Wherein, the vibrating diaphragm conductor component 10 includes：

Vibrating diaphragm body 12, the vibrating diaphragm body 12 are included back to the first surface 122 and second surface 124 for arranging, institute State upper gasket 20 to be fixed on the first surface 122 and near the edge of the first surface 122, the upper gasket 20 is fixed On the second surface 124 and near the edge of the second surface 124；

Coat 14, the coat 14 are formed on the first surface 122 of the vibrating diaphragm body 12；

Conductor structure 16, the conductor structure 16 are covered on the coat 14, and by a wire with double helix side Formula is entwined, and the wire is wound from the center from coil to coil of the vibrating diaphragm body 12 to the edge coils of the vibrating diaphragm body 12, Two free ends of the wire be located at formed conductor structure 16 outside and respectively correspond to the upper gasket 20 two described in Via 22.

Planar diaphragm speaker provided in an embodiment of the present invention is by described in one layer of 12 surface of vibrating diaphragm body coating Coat 14, to strengthen the weight of 12 central area of vibrating diaphragm body, lifts low frequency audio；And on 14 surface of the coat The wire is wound with double helix pattern, so that the coat 14 is covered by the conductor structure 16 that Jing is wound completely And the region of the vibrating diaphragm body 12 is filled up, so that the vibrating diaphragm body 12 is fully used, make whole described for system Driver under stress farthest utilized so that the sensitivity of the planar diaphragm speaker is greatly carried Rise.

In this embodiment, the coat 14 is formed at the of the vibrating diaphragm body 12 using spraying or barbola work On one surface 122, and the coat 14 is located at the central area of the vibrating diaphragm body 12, it is preferable that the coat 14 The center superposition of center and the vibrating diaphragm body 12.The planar diaphragm speaker is by the central area of the vibrating diaphragm body 12 The coat 14 is formed, to increase the weight of the vibrational system central area, makes the vibrational system with the magnetic field be System greatly promotes low frequency audio when being assembled into planar diaphragm speaker.

In this embodiment, the material adopted by the coat 14 is polyethylene terephthalate (English： Polyethylene terephthalate, abbreviation PET) material that mutually insulate with the wire such as mylar film or adjustable sound paper.

In this embodiment, external diameter size of the external diameter size of the coat 14 less than the vibrating diaphragm body 12, more excellent Ground, the coat 14 are located at the inner side of the upper gasket 20, i.e., the external diameter of the coat 14 is less than the upper gasket 20 Internal diameter.

In this embodiment, the field system includes front field system (not shown) and rear field system (not shown), The front field system and the rear field system are coaxial and are symmetrical arranged relative to the vibrational system.In one embodiment, The front field system and rear field system include U iron, outer annular magnet and annular magnet, the U iron include base plate and It is arranged on floor peripheral and protrudes from the flange of base plate place plane；The annular magnet is arranged on the centre bit of the base plate Put, the outer annular magnet is arranged on base plate, and be located between annular magnet and flange and same with the annular magnet Axle is arranged.

Fig. 1 and Fig. 4 is refer to, further, the wire has first end 160 and the second end for being the free end 162, and the first end 160 and second end 162 are respectively positioned on the homonymy of the conductor structure 16.It is to be appreciated that described In double-helical mode, by the center of the vibrating diaphragm body 12, outwards successively spiral is arranged wire, and the wire is in the vibrating diaphragm sheet The center of body 12 and it is connected with each other in initial helical position, and two free ends is located at the outside of formed helix, should Two free ends by the first end 160 of the vibrating diaphragm conductor component 10 that formed and the second end 162, to constitute the vibrating diaphragm conductor Component 10 into and out of end, and the first end 160 and the second end 162 are corresponding with two vias 22 of the upper gasket 20 respectively, and It is pasted in via 22 described in two, it is to avoid drill on the vibrating diaphragm body 12 and wear for first end 160 and the second end 162 Cross, it is ensured that the integrality and globality of the vibrating diaphragm body 12；Ensure that the spiral conducting line and the vibrating diaphragm body 12 Performance, it is ensured that the compliance when vibrating diaphragm body 12 works itself.

Fig. 1 and Fig. 2 is refer to, further, the upper gasket 20 and the lower gasket 30 are circulus, described to shake The first surface 122 of membrane body 12 is divided into and is coated with the coating zone 1220 of the coat 14, the upper pad is fixedly installed The FX 1224 and the interval region between the coating zone 1220 and the FX 1220 of circle 20 1226, the conductor structure 16 is completely covered the coat 14 and extends in the interval region 1226.It is to be appreciated that The first surface 122 be divided into outwards be arranged in order by the center of the vibrating diaphragm body 12 the coating zone 1220, Interval region 1226 and FX 1224, for arranging the coat 14, the conductor structure 16 and the upper gasket 20.In other embodiments, when the coating zone 1220 is sufficiently large, then the coating zone 1220 and the FX 1224 are joined directly together, and without middle interval region 1226.The conductor structure 16 is located at the inner side of the upper gasket 20.It is described Wire Jing Double-spirals into the conductor structure 16 external diameter less than the upper gasket 20 internal diameter, and be more than the coat 14 external diameter, so that the conductor structure 16 fully takes the surface of the vibrating diaphragm body 12 so that the vibrating diaphragm body 12 exists It is fully utilized in the field system, is conducive to lifting the low frequency audio of the planar diaphragm speaker.

Fig. 1 to Fig. 4 is refer to, further, the wire is formed at being provided with for the vibrating diaphragm body 12 with etching mode On the surface of the coat 14.The planar diaphragm speaker forms described on 12 surface of vibrating diaphragm body using etch process Spiral helicine wire, and the wire is formed at 14 surface of the coat, coat 14 described in all standing spiral is to the painting In space between coating 14 and the upper gasket 20, i.e., the wire is formed at the coat 14 and the interval region 1226 It is interior, to make full use of the space of the diaphragm surface, and the shape that formed of the spiral helicine wire and the vibrating diaphragm body 12 shape is consistent, so that the vibrating diaphragm body 12 is fully used, to strengthen the vibrating diaphragm body 12 and the magnetic Utilization rate when field system is acted on.

Fig. 1 and Fig. 4 is refer to, further, aluminum conductor of the wire for flat.By the wire is arranged Into flat, so that the shared area on the vibrating diaphragm body 12 of the wire increases, so as to enhance the vibration system The active area united with the field system, is conducive to improving the low frequency audio of the planar diaphragm speaker.

Fig. 1 and Fig. 4 is refer to, further, the hand of spiral of the double helix pattern adopted by the wire is consistent.It is described The double helix direction of wire is identical, while clock wise spirals or while counter-clockwise helical, to ensure the whole vibrational system The uniformity at center.

Fig. 1 and Fig. 4 is refer to, further, the spiral-shaped and institute formed with double helix pattern winding by the wire The shape for stating vibrating diaphragm body 12 is identical.What the wire was formed obtains the spiral-shaped shape phase with the vibrating diaphragm body 12 Together, so that the conductor structure 16 fully takes the surface of the vibrating diaphragm body 12 so that the vibrating diaphragm body 12 is in the magnetic It is fully utilized in field system, is conducive to lifting the low frequency audio of the planar diaphragm speaker.

Fig. 1, Fig. 2 and Fig. 4 are refer to, further, the vibrating diaphragm body 12, the coat 14 and the conductor structure 16 center is conllinear.It is to be appreciated that the conductor structure 16, the vibrating diaphragm body 12 and the coat 14 are centrally located at On same straight line.

Fig. 1, Fig. 2 and Fig. 4 are refer to, further, the upper gasket 20 and the lower gasket 30 are annular shape.It is described The external diameter of upper gasket 20 and the lower gasket 30 is not more than the external diameter of the vibrating diaphragm body 12, and shape and the vibrating diaphragm body 12 Shape it is identical.In this embodiment, the upper gasket 20 and the lower gasket 30 are pasted on the vibrating diaphragm using goo On the relative quantity surface of body 12.

Fig. 1 and Fig. 4 is refer to, further, the vibrating diaphragm body 12 is shaped as ellipse, circular or square.Institute The shape for stating vibrating diaphragm body 12 can be oval, circular or square, not limited to this；The upper gasket 20, the lower gasket 30th, the shape of the coat 14 and the conductor structure 16 it is identical with the shape of the vibrating diaphragm body 12, or It is oval, circular or square.

Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims

1. a kind of planar diaphragm speaker, including vibrational system and field system, it is characterised in that the vibrational system includes shaking Film conductor component and the upper gasket being oppositely arranged and lower gasket, the upper gasket and the lower gasket are along the vibrating diaphragm conductor group Part thickness direction is stacked, and the upper gasket is provided with two vias；Wherein, the vibrating diaphragm conductor component includes：

Vibrating diaphragm body, the vibrating diaphragm body include that back to the first surface and second surface for arranging the upper gasket is fixed on On the first surface and near the edge of the first surface, the upper gasket is fixed on the second surface and near institute State the edge of second surface；

Conductor structure, the conductor structure are covered on the coat, and are entwined with double helix pattern by a wire, The wire is wound from the center from coil to coil of the vibrating diaphragm body to the edge coils of the vibrating diaphragm body, and the two of the wire are free End positioned at formed conductor structure outside and respectively correspond to the upper gasket two described in via.

2. planar diaphragm speaker as claimed in claim 1, it is characterised in that the coat is using spraying or paste work Skill is formed on the first surface of the vibrating diaphragm body, and the coat is located at the central area of the vibrating diaphragm body.

3. planar diaphragm speaker as claimed in claim 1, it is characterised in that the wire has and is the free end First end and the second end, and the first end and second end are respectively positioned on the homonymy of the conductor structure.

4. planar diaphragm speaker as claimed in claim 1, it is characterised in that the upper gasket and the lower gasket are ring Shape structure, the first surface of the vibrating diaphragm body are divided into and are coated with the coating zone of the coat, are fixedly installed on described The FX of packing ring and the interval region between the coating zone and the FX, the conductor structure are complete Coat described in all standing and extend in the interval region.

5. planar diaphragm speaker as claimed in claim 4, it is characterised in that the wire is formed at described with etching mode In coat and the interval region.

6. the planar diaphragm speaker as described in claim 1 to 5 any one, it is characterised in that the wire is flat Aluminum conductor.

7. the planar diaphragm speaker as described in claim 1 to 5 any one, it is characterised in that what the wire was adopted The hand of spiral of double helix pattern is consistent.

8. the planar diaphragm speaker as described in claim 1 to 5 any one, it is characterised in that the wire is with double helix Mode winds to be formed spiral-shaped identical with the shape of the vibrating diaphragm body.

9. the planar diaphragm speaker as described in claim 1 to 5 any one, it is characterised in that the vibrating diaphragm body, described The center of coat and the conductor structure is conllinear.

10. the planar diaphragm speaker as described in claim 1 to 5 any one, it is characterised in that the field system includes Front field system and rear field system, the front field system and the rear field system are coaxially and relative to the vibrational system It is symmetrical arranged.