CN106559728B

CN106559728B - Planar diaphragm speaker

Info

Publication number: CN106559728B
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: 2019-07-19
Anticipated expiration: 2037-01-04
Also published as: CN106559728A

Abstract

The present invention is suitable for speaker technology field, and providing 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 equipped with two via holes；Vibrating diaphragm conductor component includes vibrating diaphragm ontology, coat, conductor structure, and conductor structure is entwined by conducting wire with double helix pattern and two free ends respectively correspond two via holes of upper gasket.The planar diaphragm speaker, to enhance the weight in vibrating diaphragm body central region, promotes low frequency audio by coating one layer of coat in vibrating diaphragm body surface；And conducting wire is wound with double helix pattern in coating layer surface, so that coat is covered completely and fills up the region of vibrating diaphragm ontology by the conductor structure through being wound, so that vibrating diaphragm ontology is fully used, make entirely to be utilized to the greatest extent 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 speaker technology field more particularly to a kind of planar diaphragm speakers.

Background technique

Loudspeaker is also known as " loudspeaker ", is a kind of very common electro-acoustic transducer device, in the electronic electric equipment of sounding Using very universal.Dynamic speaker is also known as coil-moving speaker, it is using electronic separate electro-acoustic transducer device.Electricity Extensive favor of the loudspeaker because of the features such as its structure is simple, production is easy, function admirable by user is current with most Mostly with widest loudspeaker.

Planar diaphragm speaker is one of loudspeaker, and traditional planar diaphragm speaker generally uses multiple bar shaped magnetic Plane diaphragm is sandwiched in intermediate form and formed by iron, there are following several respects: the fixation of multi-disc magnet in manufacture, is needed Special jig is wanted, otherwise the dislocation of magnet jig will will affect the vibration balancing of entire loudspeaker；Massive magnet increases The volume and weight of loudspeaker itself；Loudspeaker overall cost is caused to increase.

However, how to make vibrating diaphragm uniform force for planar diaphragm speaker and promote the sensitivity of loudspeaker Have become technical problem urgently to be resolved.

Summary of the invention

The purpose of the present invention is to provide a kind of planar diaphragm speakers, it is intended to solve how to make vibrating diaphragm in the prior art The technical issues of sensitivity of uniform force and promotion loudspeaker.

The invention is realized in this way a kind of planar diaphragm speaker, including vibrational system and field system, the vibration System includes vibrating diaphragm conductor component and the upper gasket and lower gasket that are oppositely arranged, and the upper gasket and the lower gasket are described in Vibrating diaphragm conductor component thickness direction is stacked, and the upper gasket is equipped with two via holes；Wherein, the vibrating diaphragm conductor component packet It includes:

Vibrating diaphragm ontology, the vibrating diaphragm ontology include the first surface and second surface of opposite facing setting, and the upper gasket is solid Due to the edge on the first surface and close to the first surface, the lower 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 ontology；

Conductor structure, the conductor structure are covered on the coat, and are wound by a conducting wire with double helix pattern It forms, the conducting wire is wound from the center from coil to coil of the vibrating diaphragm ontology to the edge coils of the vibrating diaphragm ontology, the conducting wire Two free ends, which are located at, to be formed by the outside of conductor structure and respectively corresponds two via holes of the upper gasket.

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

Further, the conducting wire have be the free end first end and second end, and the first end and institute It states second end and is respectively positioned on the ipsilateral of the conductor structure.

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

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

Further, the conducting wire is flat aluminum conductor.

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

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

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

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

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

The present invention compared with the existing technology have the technical effect that the planar diaphragm speaker passes through in described this body surface of vibrating diaphragm Face coats one layer of coat, to enhance the weight in vibrating diaphragm body central region, promotes low frequency audio；And in the painting Clad surface winds the conducting wire with double helix pattern, so that the conductor structure through being wound is completely by the coat The region of the vibrating diaphragm ontology is covered and filled up, so that the vibrating diaphragm ontology is fully used, is made entire described for system Driver under stress utilized to the greatest extent so that the sensitivity of the planar diaphragm speaker is greatly mentioned It rises.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to the embodiment of the present invention or the prior art Attached drawing needed in description is briefly described, it should be apparent that, drawings described below is only of the invention Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

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

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

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

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

Description of symbols:

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

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention System.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.

Please refer to Fig. 1 to Fig. 4, planar diaphragm speaker provided in an embodiment of the present invention include vibrational system (not indicating) and Field system (not shown), the vibrational system use single side bifilar helix voice coil vibrations structure, and including vibrating diaphragm conductor component 10 and the upper gasket 20 and lower gasket 30 that are oppositely arranged, the upper gasket 20 and the lower gasket 30 are along the vibrating diaphragm conductor 10 thickness direction of component is stacked, and the upper gasket 20 is equipped with two via holes 22；Wherein, the vibrating diaphragm conductor component 10 wraps It includes:

Vibrating diaphragm ontology 12, the vibrating diaphragm ontology 12 include the first surface 122 and second surface 124 of opposite facing setting, institute It states upper gasket 20 to be fixed on the first surface 122 and close to the edge of the first surface 122, the lower gasket 30 is fixed In the edge on the second surface 124 and close to the second surface 124；

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

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

Planar diaphragm speaker provided in an embodiment of the present invention on 12 surface of vibrating diaphragm ontology by coating described in one layer Coat 14 promotes low frequency audio to enhance the weight of 12 central area of vibrating diaphragm ontology；And on 14 surface of coat The conducting wire is wound with double helix pattern, so that the conductor structure 16 through being wound completely covers the coat 14 And the region of the vibrating diaphragm ontology 12 is filled up, so that the vibrating diaphragm ontology 12 is fully used, make entire described for system Driver under stress utilized to the greatest extent so that the sensitivity of the planar diaphragm speaker is greatly mentioned It rises.

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

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

In this embodiment, the outer diameter size of the coat 14 is less than the outer diameter size of the vibrating diaphragm ontology 12, more excellent Ground, the coat 14 are located at the inside of the upper gasket 20, i.e., the outer diameter of the described coat 14 is less than the upper gasket 20 Internal diameter.

In this embodiment, the field system includes preceding field system (not shown) and rear field system (not shown), The preceding field system and the rear field system are coaxial and arranged symmetrically relative to the vibrational system.In one embodiment, The preceding field system and rear field system include U iron, outer ring magnet and annular magnet, the U iron include bottom plate and The flange of plane where floor peripheral is set and protrudes from bottom plate；The centre bit of the bottom plate is arranged in the annular magnet It sets, the outer ring magnet is arranged on bottom plate, and between annular magnet and flange, and same with the annular magnet Axis setting.

Fig. 1 and Fig. 4 are please referred to, further, the conducting wire is with the first end 160 and second for being the free end End 162, and the first end 160 and the second end 162 are respectively positioned on the ipsilateral of the conductor structure 16.It is to be appreciated that institute Stating conducting wire, by the center of the vibrating diaphragm ontology 12, layer-by-layer spiral is arranged outward in a manner of double helix, and the conducting wire is in the vibrating diaphragm It the center of ontology 12 and is connected with each other in starting helical position, and two free ends are located at and are formed by the outside of helix, Two free end is the first end 160 and second end 162 for being formed by the vibrating diaphragm conductor component 10, is led with constituting the vibrating diaphragm Body component 10 into and out of end, and the first end 160 and second end 162 are corresponding with two via holes 22 of the upper gasket 20 respectively, And be pasted in two via holes 22, it avoids drilling on the vibrating diaphragm ontology 12 for first end 160 and second end 162 It passes through, ensure that the integrality and globality of the vibrating diaphragm ontology 12；Ensure the spiral conducting line and the vibrating diaphragm ontology 12 Performance itself, it is ensured that the vibrating diaphragm ontology 12 work when flexibility.

Referring to Fig.1 and 2, further, the upper gasket 20 and the lower gasket 30 are cyclic structure, the vibration The first surface 122 of membrane body 12 is divided into coating zone 1220, the fixed setting upper pad coated with the coat 14 The fixed area 1224 of circle 20 and the interval region between the coating zone 1220 and the fixed area 1220 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 the coating zone 1220 being arranged successively outward by the center of the vibrating diaphragm ontology 12, Interval region 1226 and fixed area 1224, for the coat 14, the conductor structure 16 and the upper gasket to be arranged 20.In other embodiments, when the coating zone 1220 is sufficiently large, then the coating zone 1220 and the fixed area Domain 1224 is connected directly, and without intermediate interval region 1226.The conductor structure 16 is located at the inside of the upper gasket 20.Institute State conducting wire through Double-spiral at the conductor structure 16 outer diameter be less than the upper gasket 20 internal diameter, and be greater than the painting The outer diameter of coating 14, so that the conductor structure 16 sufficiently occupies the surface of the vibrating diaphragm ontology 12, so that the vibrating diaphragm ontology 12 are fully utilized in the field system, are conducive to the low frequency audio for promoting the planar diaphragm speaker.

Fig. 1 to Fig. 4 is please referred to, further, the conducting wire is formed in being equipped with for the vibrating diaphragm ontology 12 with etching mode On the surface of the coat 14.The planar diaphragm speaker is formed using etch process on 12 surface of vibrating diaphragm ontology described Spiral helicine conducting wire, and the conducting wire is formed in 14 surface of coat, coat 14 described in all standing and spiral to the painting In space between coating 14 and the upper gasket 20, i.e., the conducting wire is formed in the coat 14 and the interval region 1226 Interior, to make full use of the space of the diaphragm surface, and the spiral helicine conducting wire is formed by shape and the vibrating diaphragm ontology 12 shape is consistent, so that the vibrating diaphragm ontology 12 is fully used, to enhance the vibrating diaphragm ontology 12 and the magnetic Utilization rate when field system acts on.

Fig. 1 and Fig. 4 are please referred to, further, the conducting wire is flat aluminum conductor.By the way that the conducting wire is arranged At flat, so that the conducting wire occupied area on the vibrating diaphragm ontology 12 increases, to enhance the vibration system The active area of system and the field system, is conducive to the low frequency audio for improving the planar diaphragm speaker.

Fig. 1 and Fig. 4 are please referred to, further, the hand of spiral of double helix pattern used by the conducting wire is consistent.It is described The double helix direction of conducting wire is identical, while clock wise spirals or counter-clockwise helical simultaneously, to guarantee the entire vibrational system The consistency at center.

Fig. 1 and Fig. 4 are please referred to, further, the conducting wire is formed by spiral-shaped and institute with double helix pattern winding The shape for stating vibrating diaphragm ontology 12 is identical.The conducting wire is formed by obtain the spiral-shaped shape phase with the vibrating diaphragm ontology 12 Together, so that the conductor structure 16 sufficiently occupies the surface of the vibrating diaphragm ontology 12, so that the vibrating diaphragm ontology 12 is in the magnetic It is fully utilized in field system, is conducive to the low frequency audio for promoting the planar diaphragm speaker.

Fig. 1, Fig. 2 and Fig. 4 are please referred to, further, the vibrating diaphragm ontology 12, the coat 14 and the conductor structure 16 center is conllinear.It is to be appreciated that the centre bit of the conductor structure 16, the vibrating diaphragm ontology 12 and the coat 14 In on same straight line.

Fig. 1, Fig. 2 and Fig. 4 are please referred to, further, the upper gasket 20 and the lower gasket 30 are annular shape.It is described The outer diameter of upper gasket 20 and the lower gasket 30 is not more than the outer diameter of the vibrating diaphragm ontology 12, and shape and the vibrating diaphragm ontology 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 ontology 12.

Fig. 1 and Fig. 4 are please referred to, further, the shape of the vibrating diaphragm ontology 12 is ellipse, circle or rectangular.Institute The shape for stating vibrating diaphragm ontology 12 can be ellipse, circle or rectangular, without being limited thereto；The upper gasket 20, the lower gasket 30, the shape of the coat 14 and the conductor structure 16 is identical as the shape of the vibrating diaphragm ontology 12, is also possible to Ellipse, circle or rectangular.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims

1. a kind of planar diaphragm speaker, including vibrational system and field system, the vibrational system uses single side bifilar helix Voice coil vibrations structure, which is characterized in that the vibrational system includes vibrating diaphragm conductor component and the upper gasket being oppositely arranged under Washer, the upper gasket and the lower gasket are stacked along vibrating diaphragm conductor component thickness direction, and the upper gasket is equipped with Two via holes；Wherein, the vibrating diaphragm conductor component includes:

Vibrating diaphragm ontology, the vibrating diaphragm ontology include the first surface and second surface of opposite facing setting, and the upper gasket is fixed on Edge on the first surface and close to the first surface, the lower gasket are fixed on the second surface and close to institutes State the edge of second surface；

Conductor structure, the conductor structure are completely covered by the coat, and are wound by a conducting wire with double helix pattern It forms, edge spiral shell of the conducting wire from the starting helical position from coil to coil of the center of the vibrating diaphragm ontology to the vibrating diaphragm ontology Rotation winding, two free ends of the conducting wire, which are located at, to be formed by the outside of conductor structure and respectively corresponds two institutes of the upper gasket State via hole, the conducting wire have be the free end first end and second end, and the first end and the second end It is respectively positioned on the ipsilateral of the conductor structure；The first end and second end, constitute conductor structure into and out of end.

2. planar diaphragm speaker as described in claim 1, which is characterized in that the coat is using spraying or pastes work Skill is formed on the first surface of the vibrating diaphragm ontology, and the coat is located at the central area of the vibrating diaphragm ontology.

3. planar diaphragm speaker as described in claim 1, which is characterized in that the upper gasket and the lower gasket are ring Shape structure, the first surface of the vibrating diaphragm ontology are divided into the coating zone coated with the coat, are fixedly installed on described The fixed area of washer and the interval region between the coating zone and the fixed area, the conductor structure are complete It coat described in all standing and extends in the interval region.

4. planar diaphragm speaker as claimed in claim 3, which is characterized in that the conducting wire is formed in described with etching mode In coat and the interval region.

5. the planar diaphragm speaker as described in Claims 1-4 any one, which is characterized in that the conducting wire is flat Aluminum conductor.

6. the planar diaphragm speaker as described in Claims 1-4 any one, which is characterized in that used by the conducting wire The hand of spiral of double helix pattern is consistent.

7. the planar diaphragm speaker as described in Claims 1-4 any one, which is characterized in that the conducting wire is with double helix Mode wind be formed by it is spiral-shaped identical as the shape of the vibrating diaphragm ontology.

8. the planar diaphragm speaker as described in Claims 1-4 any one, which is characterized in that the vibrating diaphragm ontology, described The center of coat and the conductor structure is conllinear.

9. the planar diaphragm speaker as described in Claims 1-4 any one, which is characterized in that the field system includes Preceding field system and rear field system, the preceding field system and the rear field system are coaxially and relative to the vibrational system It is symmetrical arranged.