CN209659593U - Loudspeaker - Google Patents

Abstract

The utility model is about a kind of loudspeaker, including frame, the front cover of accommodating space and the vibrational system being contained in the accommodating space and magnetic circuit system are surrounded jointly with the frame, the frame includes side wall and damping piece, the vibrational system includes vibrating diaphragm and the voice coil for driving the vibrating diaphragm movement, the accommodating space is divided into ante-chamber and back cavity by the vibrating diaphragm, a groove is offered on the side wall, the groove includes the first inclined surface, the step surface of second inclined surface and connection first inclined surface and the second inclined surface, first inclined surface is far from the front cover, second inclined surface is close to the front cover, the side wall is provided with through first inclined surface and the through hole that is connected to back cavity, the damping piece is fixed on first inclined surface and covers the through hole.Loudspeaker provided by the utility model can conveniently paste damping piece automatically and can limit to damping piece.

Description

Loudspeaker

[technical field]

The utility model relates to acoustic-electric field more particularly to a kind of loudspeakers.

[background technique]

With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is diversified, wherein one is important Function be high-quality music function, and the loudspeaker in mobile phone be realize this high-quality music function indispensable item One of part.

In the related technology, when the loudspeaker vibration sounding, the air pressure of intracavitary formation is obstructed in the loudspeaker, shadow Ring the acoustical behavior of loudspeaker.To solve this technical problem, the relevant technologies using opened up in frame connection loudspeaker inner cavity with Extraneous air guide channel, the air pressure generated for balanced loudspeaker inner cavity；However, the air guide channel opens up, it is easy to make ash The substances such as dirt enter loudspeaker inner cavity.

And in the related technology, the substances such as dust enter the inner cavity in order to prevent, are led using what is opened up in the frame Paste damping piece in the outside in gas channel.In practical applications, otherwise without step in frame, it is suitble to paste damping piece automatically, but nothing Limit features；Otherwise there is step in frame, damping piece can be limited, but be not suitable for automatic patch damping piece.

Therefore, it is necessary to provide a kind of loudspeaker for facilitating and pasting damping piece and can limiting to damping piece.

[utility model content]

The technical problem to be solved by the utility model is to provide a kind of loudspeaker, this loudspeaker can paste damping piece When limit and it is convenient automatic paste damping piece, anti-foreign matter effect is good, and acoustical behavior is good.

In order to solve the above technical problems, the technical solution of the utility model is:

A kind of loudspeaker including frame, surrounds the front cover of accommodating space with the frame jointly and is contained in the receiving Vibrational system and magnetic circuit system in space, the frame include side wall and damping piece, and the vibrational system includes vibrating diaphragm and drive The voice coil of the vibrating diaphragm movement is moved, the accommodating space is divided into ante-chamber and back cavity, offered on the side wall by the vibrating diaphragm One groove, the groove include the first inclined surface, the second inclined surface and connection first inclined surface and the second inclined surface Step surface, first inclined surface is far from the front cover, and close to the front cover, the side wall, which is provided with, to be passed through for second inclined surface The through hole wearing first inclined surface and being connected to back cavity, the damping piece are fixed on first inclined surface and cover institute State through hole.

Preferably, the damping piece includes opposite the inner surface and the outer surface, and the inner surface fits in described first and inclines The elongated surfaces on inclined-plane, the outer surface are located at other than the step surface and the second inclined surface.

Preferably, the step surface is abutted with one end of the damping piece.

Preferably, first inclined surface slopes inwardly along the direction far from front cover.

Preferably, first inclined surface is arranged in parallel with the second inclined surface.

Preferably, the magnetic circuit system includes magnetic bowl, the magnet steel and pole piece for being fixed to magnetic bowl, the magnetic bowl and magnet steel and pole Gap is formed between core, the voice coil is contained in the gap.

Compared with the relevant technologies, loudspeaker beneficial effect provided by the utility model is: the side wall setting of the frame Fluted, the groove includes the first inclined surface, the second inclined surface and connection first inclined surface and the second inclined surface Step surface, when the damping piece is pasted on the outside of the through hole, the step surface plays position-limiting action to the damping piece, Simultaneously because the extended area of damping piece outer surface is located at other than the step surface and the second inclined surface, the sucking pen pasted automatically will not It is interfered with the step surface, so as to convenient automatic stickup damping piece.

[Detailed description of the invention]

Fig. 1 is the decomposition diagram of loudspeaker provided by the utility model；

Fig. 2 is the assembling schematic diagram of loudspeaker provided by the utility model；

Fig. 3 is cross-sectional view of the loudspeaker provided by the utility model along line A-A；

Fig. 4 is the structural schematic diagram of the frame of loudspeaker provided by the utility model；

Fig. 5 is the structural schematic diagram at another visual angle of the frame of loudspeaker provided by the utility model；

Fig. 6 is the frame of loudspeaker provided by the utility model and the assembling structure schematic diagram of damping piece；

Fig. 7 is the partial enlargement diagram at A of frame Fig. 5 of loudspeaker provided by the utility model；

Fig. 8 is the partial enlargement diagram at B of frame Fig. 6 of loudspeaker provided by the utility model.

Appended drawing reference: 100, loudspeaker；11, frame；110, accommodating cavity；111, longitudinal side wall；112, lateral sidewalls；113, Limiting section；114, groove；1141, the first inclined surface；1142, the second inclined surface；1143, step surface；115, through hole；116, on Surface；117, positioning column；12, damping piece；131, vibrational system；1311, vibrating diaphragm；1312, voice coil；132, magnetic circuit system；1321, Magnetic bowl；1322, magnet steel；1323, pole piece；14, front cover；141, first surface；142, it slots；143, curved portion；144, the second table Face.

[specific embodiment]

To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Below in conjunction with drawings and embodiments, the utility model is described in further detail.

Fig. 1 and Fig. 2 show according to an embodiment of the present invention provide loudspeaker 100, including frame 11, with it is described Frame 11 surrounds the front cover 14 and the vibrational system 131 being contained in the accommodating space and magnetic circuit system of accommodating space jointly 132。

Fig. 3 is referred to, the vibrational system 131 includes vibrating diaphragm 1311 and the voice coil for driving vibrating diaphragm 1311 to move 1312, the magnetic circuit system 132 includes magnetic bowl 1321, the magnet steel 1322 and pole piece 1323 being fixed on the magnetic bowl 1321, institute It states and forms gap between magnetic bowl 1321 and pole piece 1323, the voice coil 1312 is contained in gap.When voice coil 1312 is passed through electric current When, the voice coil 1312 being in magnetic field is generated movement by magnetic fields, and with the variation of electric current, this movement can also occur therewith Variation leads to the generation of sound so that the vibrating diaphragm 1311 be driven to vibrate up and down.The vibrating diaphragm 1311 is fixed on the front cover 14 Between the frame 11, the accommodating space is separated into ante-chamber and back cavity, the vibrating diaphragm 1311 and institute by the vibrating diaphragm 1311 It states and forms the ante-chamber between front cover 14, form the back cavity between the vibrating diaphragm 1311 and the frame 11.

The magnetic circuit system 132 is housed in the frame 11, and the vibrating diaphragm 1311 covers the voice coil 1312 and magnetic circuit System 132, and be fixed in frame 11, the front cover 14 is to be encapsulated in institute for the vibrational system 131 and magnetic circuit system 132 It states in frame 11.

Please also refer to Fig. 3 to Fig. 5, the frame 11 includes two longitudinal side walls 111 being oppositely arranged, two lateral sidewalls 112 and the accommodating cavity 110 that is surrounded by two longitudinal side walls 111 and two lateral sidewalls 112.The equal side walls 111,112 include a direction The upper surface 116 of front cover 14, there are four positioning column 117, the side walls for setting on four angles of the upper surface 116 of the frame 11 111 and 112 are provided with limiting section 113 towards the inside of accommodating cavity 110, and the accommodating cavity 110 is hollow structure, the magnetic circuit system System 132 is mounted in the accommodating cavity 110, and is fastened on the limiting section 113.The vibrating diaphragm 1311 is attached to the frame On 11 upper surface 116.

On each longitudinal side wall 111 of the frame 11, fluted 114 are opened up.It is symmetrically set on the bottom surface of the groove 114 Two through holes 115 are set, the through hole 115 is connected to the back cavity of the loudspeaker 100.

Refer to Fig. 3 and Fig. 7, the groove 114 includes the first inclined surface 1141, the second inclined surface 1142 and connection the The step surface 1143 of one inclined surface 1141 and the second inclined surface 1142, second inclined surface 1142 is close to the front cover 14, institute The first inclined surface 1141 is stated far from the front cover 14, and first inclined surface 1141 is inside along the direction far from the front cover 14 Inclination, it is preferable that first inclined surface 1141 is arranged in parallel with the second inclined surface 1142.

Fig. 3 and Fig. 8 are referred to, the damping piece 12 covers the through hole for being fitted in the groove 114 115.When damping piece 12 is fitted in groove 114, damping piece 12 is fitted on first inclined surface 1141.The damping piece 12 include opposite the inner surface and the outer surface, and the inner surface fits in the first inclined surface 1141, the elongated surfaces of the outer surface Other than second inclined surface 1142 and the step surface 1143.Since the elongated surfaces of 12 outer surface of damping piece are located at Other than second inclined surface 1142 and step surface 1143 namely 12 outer surface extended area of damping piece without frame material blocks, so When pasting the damping piece 12 using tool such as sucking pen, the sucking pen pasted automatically will not be interfered with frame 11, so as to Convenient automatic stickup damping piece 12.The damping piece 12 is for preventing extraneous small particles of pollution object from entering inside loudspeaker 100, together When adjust acoustic impedance at the through hole 115, so as to adjust the whole acoustical behavior of loudspeaker 100.

Referring to Fig. 1, the front cover 14 includes first surface 141 and the second surface opposite with the first surface 141 144, fluting 142 is offered from first surface 141 to 144 direction of second surface among the front cover 14, is used for the vibrating diaphragm 1311 have cushion space when sounding vibrates.Four angles of the front cover 14 are set as the curved portion being recessed to 142 directions of fluting 143, the positioning column 117 for being fixed on 11 4 angles of the frame.

When installation, the magnetic circuit system 132 is sticked in the accommodating of the frame 11 by the limited wall 113 of the frame 11 In chamber 110, the voice coil 1312 is contained in the gap formed between the magnetic bowl 1321 of the magnetic circuit system and pole piece 1323, institute It states vibrating diaphragm 1311 to be attached on the upper surface 116 of the frame 11, then passes through the curved portion 143 of the front cover 14 and the basin The engaging of positioning column 117 of frame 11 realizes that front cover 14 is fixedly connected with frame 11, thus by the magnetic circuit system 132 and vibrational system 131 are packaged in the frame 11, and finally the damping piece 12 is pasted on the first inclined surface 1141 of the frame 11 115 outside of through hole, the step surface 1143 play position-limiting action to the damping piece 12.

Compared with prior art, the step surface 1143 in the frame 11 of the loudspeaker 100 provided by the utility model can To play the role of the positioning damping piece 12 in first inclined surface 1141, simultaneously because 1143 lower part of step surface sets second Inclined surface 1142, the elongated surfaces of 12 outer surface of damping piece be located at second inclined surface 1142 and the step surface 1143 with Outside, so that 12 outer surface extended area of damping piece is without frame material blocks, so when pasting the damping piece 12, it is automatic to paste Sucking pen will not be interfered with the step surface 1143, paste damping piece so as to convenient automatic.

Above-described is only the embodiments of the present invention, it should be noted here that the ordinary skill people of this field For member, without departing from the concept of the premise utility, improvement can also be made, but these belong to the utility model Protection scope.

Claims (6)

1. a kind of loudspeaker surrounds the front cover of accommodating space jointly including frame, with the frame and is contained in the receiving sky Interior vibrational system and magnetic circuit system, the frame includes side wall and damping piece, and the vibrational system includes vibrating diaphragm and driving The accommodating space is divided into ante-chamber and back cavity by the voice coil of the vibrating diaphragm movement, the vibrating diaphragm, it is characterised in that: the side wall On offer a groove, the groove includes the first inclined surface, the second inclined surface and connection first inclined surface and second The step surface of inclined surface, first inclined surface is far from the front cover, and second inclined surface is close to the front cover, the side wall It is provided with the through hole for running through first inclined surface and being connected to back cavity, the damping piece is fixed on first inclined surface And cover the through hole.

2. loudspeaker according to claim 1, which is characterized in that the damping piece includes opposite inner surface and appearance Face, the inner surface fit in first inclined surface, and the elongated surfaces of the outer surface are located at the step surface and the second inclination Other than face.

3. loudspeaker according to claim 2, which is characterized in that the step surface is abutted with one end of the damping piece.

4. loudspeaker according to claim 1, which is characterized in that first inclined surface is along the direction far from the front cover Slope inwardly.

5. loudspeaker according to claim 1, which is characterized in that first inclined surface is parallel with the second inclined surface to be set It sets.

6. loudspeaker according to claim 1, which is characterized in that the magnetic circuit system includes magnetic bowl, is fixed to magnetic bowl Magnet steel and pole piece, form gap between the magnetic bowl and magnet steel and pole piece, the voice coil is contained in the gap.