CN209314024U

CN209314024U - A kind of loudspeaker

Info

Publication number: CN209314024U
Application number: CN201920116771.5U
Authority: CN
Inventors: 林嘉平
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2019-08-27
Anticipated expiration: 2029-01-23

Abstract

The utility model provides a kind of loudspeaker, including the vibrating diaphragm component, center washer and center magnet steel being cascading from top to down；The vibrating diaphragm component includes sound film and top dome；The middle position of sound film upper surface is equipped with hollow out through-hole, the top dome covers the hollow out through-hole, and setting, in sound film upper surface, the top dome is equipped with the first groove upwardly extended close to the lower surface of the sound film, and first groove is connected to the hollow out through-hole；Center magnet steel upper surface is equipped with boss, and center washer lower surface is equipped with the second groove upwardly extended, and the boss is connect with second groove.The utility model provides a kind of loudspeaker, can promote the magnetic field strength of magnetic circuit system under the premise of not increasing loudspeaker volume.

Description

A kind of loudspeaker

Technical field

The utility model relates to a kind of speaker technology field more particularly to a kind of loudspeakers.

Background technique

Microspeaker as one kind can convert electrical energy into sound can device, be widely used in smart phone, In the microelectronic devices such as field camera, camera and laptop, the rapid development of microelectronic device, to being set to The size of internal Microspeaker requires also increasingly to improve, and Microspeaker must be in company with the miniaturization, light of microelectronic device The main trend of thinning；

Existing Microspeaker includes: magnetic circuit system, vibrational system and the fixed magnetic circuit system of receiving and vibration The frame of system, front cover.The magnetic circuit system includes: yoke, the magnet steel being arranged on yoke and is set on the magnet steel Center washer；The vibrational system includes: vibrating diaphragm, top dome, voice coil；In order to meet performance requirement, while making Microspeaker Miniaturization, lightening, traditional approach is by trim designs more compactization of each components of Microspeaker, to reach micro- It is the miniaturization of type loudspeaker, lightening.

Due to the miniaturization of Microspeaker, lightening, so overall dimensions size is restricted, the relevant technologies The vibrational system of loudspeaker and the size of magnetic circuit system are restricted to limit the performance of the loudspeaker of the relevant technologies. It such as needs to be promoted the Performance Sensitivity of Microspeaker, conventionally, is no longer satisfied requirement, increase can only be passed through The shape of Microspeaker, increases magnetic circuit system, and then improving performance sensitivity, and it is smaller not meet current loudspeaker Change, lightening development.

Utility model content

The technical problem to be solved by the utility model is to the utility model provides a kind of loudspeaker, can not increase Under the premise of big loudspeaker volume, the magnetic field strength of magnetic circuit system is promoted.

In order to solve the above-mentioned technical problem, the utility model provides a kind of loudspeaker, including stacks gradually from top to down Vibrating diaphragm component, center washer and the center magnet steel of setting；

The vibrating diaphragm component includes sound film and top dome；The middle position of sound film upper surface is equipped with hollow out through-hole, described Top dome covers the hollow out through-hole, and is arranged in sound film upper surface, and the top dome is equipped with close to the lower surface of the sound film The first groove upwardly extended, first groove are connected to the hollow out through-hole；

Center magnet steel upper surface is equipped with boss, and center washer lower surface is equipped with the second groove upwardly extended, The boss is connect with second groove.

Further, the shape of the longitudinal cross-section of the top dome is inverted U-shaped, and the top dome bottom is equipped with the ring to sound film The convex edge that direction extends, the upper surface of the sound film is arranged in the convex edge.

Further, the center washer includes the first plate, the second plate and third plate；

The lower surface of the third plate and the upper surface of boss connect；Second plate is enclosed around the boss one, and the The upper surface of the center magnet steel is arranged in the bottom of two plates, and the top of second plate is connect with the side wall of first plate, The side wall of second plate is connect with plateau sidewall；The third plate is vertical with second plate to be connect, and third plate lower surface The upper surface of the center magnet steel is set.

Further, the shape of the hollow out through-hole and the first groove is rectangular；First plate, the second plate and third The thickness of plate is equal；

First plate upper surface is equal with preset first distance at a distance from first groove top, and described first Distance is the distance of third plate upper surface to sound film lower surface.

Further, top dome includes along horizontally disposed first, along the vertical direction be arranged second and along level side To the convex edge of setting, the first position is right above the hollow out through-hole, and first outer edge is vertically equipped with described the Two, second bottom end is vertically equipped with the convex edge, and the upper surface of sound film is arranged in the convex edge；Second plate edge Vertical direction setting, second plate is close to second outer wall and second the distance between outer wall close to the second plate For second distance, the second distance is 0.15-0.25mm.

Further, a kind of loudspeaker, further includes frame, front cover, yoke and voice coil, and the frame has first Accommodating chamber, first accommodating chamber penetrate through the upper and lower surfaces of frame respectively；The yoke covers first accommodating chamber, And the bottom of the frame is set；The middle position of the yoke upper surface is arranged in the center magnet steel, and is located at first In accommodating chamber；The upper surface of the frame and the lower surface of front cover connect；

The front cover lower surface is equipped with the second accommodating chamber upwardly extended；First accommodating chamber and second accommodating chamber Connection, and an accommodating chamber is formed between the two, the vibrating diaphragm component is located in the accommodating chamber；The outer edge of the sound film is located at Between the upper surface of frame and the lower surface of front cover, and the sound film is connect with frame and front cover respectively.

Further, a kind of loudspeaker further includes annular washer and side magnet steel, the annular washer insertion setting On the inner wall of the frame, and the annular washer is located in the first accommodating chamber；Side magnet steel upper end and the annular China The lower surface of department connects, and side magnet steel lower end is connect with the upper surface of the yoke.

The utility model has the following beneficial effects:

The utility model provides a kind of loudspeaker, and the middle position of sound film upper surface is equipped with hollow out through-hole, can drop Bass film weight promotes Microspeaker sensitivity, while top dome covers the hollow out through-hole and table is arranged on the sound film Face, and top dome lower surface is equipped with the first groove upwardly extended, compared with traditional top dome, is designed using above-mentioned roof structure Mode can increase the distance of center washer to top dome, thus under the premise of not increasing loudspeaker volume, it can be in center magnet steel Boss (material of its boss is identical as the material of center magnet steel) is arranged in upper surface, thus increase the thickness of center magnet steel, and It is capable of increasing the thickness of center washer, and then promotes the magnetic field strength of magnetic circuit system, to promote the Performance Sensitivity of product.

Detailed description of the invention

Fig. 1 is the explosive view according to a kind of loudspeaker of the utility model embodiment；

Fig. 2 is the top view according to a kind of loudspeaker of the utility model embodiment；

Fig. 3 is the A-A cross-sectional view in Fig. 2；

Fig. 4 is the partial enlarged view in Fig. 3；

Fig. 5 is the positive structural schematic diagram of center washer according to the utility model embodiment；

Fig. 6 is the structural schematic diagram according to the center magnet steel of the utility model embodiment；

Fig. 7 is the structural schematic diagram according to the center washer reverse side of the utility model embodiment；

Label declaration:

1, vibrating diaphragm component；2, center washer；3, center magnet steel；4, sound film；5, top dome；6, hollow out through-hole；7, the first groove； 8, boss；9, the second groove；10, convex edge；11, the first plate；12, the second plate；13, third plate；14, first distance；15, frame； 16, front cover；17, yoke；18, voice coil；19, the first accommodating chamber；20, the second accommodating chamber；21, annular washer；22, side magnet steel；23, Ring；24, second distance；25, first；26, second.

Specific embodiment

For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match Attached drawing is closed to be explained in detail.

The design of the utility model most critical are as follows: be cascading from top to down have vibrating diaphragm component, center washer and in Heart magnet steel；Vibrating diaphragm component includes sound film and top dome；Sound film middle position is equipped with hollow out through-hole, and top dome covers the hollow out through-hole, And setting, in sound film upper surface, top dome is equipped with first for upwardly extending and being connected to hollow out through-hole close to the lower surface of sound film Groove；Center magnet steel upper surface is equipped with boss, and center washer lower surface is equipped with the first groove upwardly extended, the boss and institute State the connection of the first groove.

Fig. 1 to Fig. 7 is please referred to, the utility model provides a kind of loudspeaker, including what is be cascading from top to down Vibrating diaphragm component, center washer and center magnet steel；

As can be seen from the above description, the utility model provides a kind of loudspeaker, the middle position of sound film upper surface is equipped with Hollow out through-hole can reduce sound film weight, promote Microspeaker sensitivity, while top dome covers the hollow out through-hole setting and exists Sound film upper surface, and top dome lower surface is equipped with the first groove upwardly extended, compared with traditional top dome, using above-mentioned Roof structure design method can increase the distance of center washer to top dome, thus under the premise of not increasing loudspeaker volume, energy It is enough that in center magnet steel upper surface, boss (material of its boss is identical as the material of center magnet steel) is set, to increase center magnet steel Thickness, and the thickness of center washer is capable of increasing, and then promote the magnetic field strength of magnetic circuit system, to promote the property of product It can sensitivity.

As can be seen from the above description, can guarantee that center washer to top dome has certain distance by above structure, so as to The thickness for enough increasing center magnet steel, guarantees the magnetic field strength of magnetic circuit system；Above structure simultaneously, can be improved top dome and sound film connects The Stability and dependability connect.

As can be seen from the above description, by above structure, can be improved reliability that center magnet steel is connect with center washer and Stability, while can play the role of positioning assembly, relative to conventional loudspeakers structure, the utility model has been capable of increasing center The thickness of magnet steel and center ring department, to increase the magnetic field strength of magnetic circuit system.

As can be seen from the above description, by above structure vibrating diaphragm component can be made under the premise of not increasing loudspeaker volume The distance between center ring China be it is equidistant, can guarantee to the maximum extent sound film vibration when, sound film and top dome are not It can collide with center washer.

As can be seen from the above description, can guarantee the top dome that sound film is arranged thereon in vibration processes by above structure Second can't collide with center washer, thus the acoustical behavior quality of loudspeaker.

As can be seen from the above description, being arranged by above structure, the compact-sized of loudspeaker is enabled to, while can guarantee The connection of each part is reliable.

Preferably, the annular washer outer edge is equipped with horizontally disposed flange, and the flange is embedded in setting In the inner wall of the frame.

Please refer to Fig. 1-Fig. 7, the embodiments of the present invention one are as follows:

The utility model provides a kind of loudspeaker, including be cascading from top to down vibrating diaphragm component 1, center China Department 2 and center magnet steel 3；

The vibrating diaphragm component 1 includes sound film 4 and top dome 5；The middle position of 4 upper surface of sound film is equipped with hollow out through-hole 6, The top dome 5 covers the hollow out through-hole 6, and is arranged in 4 upper surface of sound film, and the top dome 5 is under the sound film 4 Surface is equipped with the first groove 7 upwardly extended, and first groove 7 is connected to the hollow out through-hole 6；

3 upper surface of center magnet steel is equipped with boss 8, and it is recessed that 2 lower surface of center washer is equipped with second upwardly extended Slot 9, the boss 8 are connect with second groove 9；

The shape of the longitudinal cross-section of the top dome 5 be it is inverted U-shaped, 5 bottom of top dome is equipped with to 23 direction of ring of sound film 4 The upper surface of the sound film 4 is arranged in the convex edge 10 of extension, the convex edge 10；The longitudinal cross-section is perpendicular to horizontal plane；

The center washer 2 includes the first plate 11, the second plate 12 and third plate 13；The lower surface of the third plate 13 with it is convex The upper surface of platform 8 connects；Second plate 12 is enclosed around the boss 8 one, and the bottom of the second plate 12 is arranged at the center The upper surface of magnet steel 3, the top of second plate 12 are connect with the side wall of first plate 11, the side wall of second plate 12 with The connection of 8 side wall of boss；The third plate 13 is vertical with second plate 12 to be connect, and the setting of 13 lower surface of third plate is in described The upper surface of heart magnet steel 3；

The shape of the hollow out through-hole 6 and the first groove 7 is rectangular；First plate 11, the second plate 12 and third plate 13 thickness is equal；First plate, 11 upper surface, institute equal with first distance 14 at a distance from 7 top of the first groove State the distance that first distance 14 is 13 upper surface of third plate to 4 lower surface of sound film.

The embodiments of the present invention two are as follows:

The present embodiment two and the difference of embodiment one be, a kind of loudspeaker, further include frame 15, front cover 16, Yoke 17, voice coil 18, annular washer 21 and side magnet steel 22；

The frame 15 has the first accommodating chamber 19, and first accommodating chamber 19 penetrates through the upper surface of frame 15 under respectively Surface；The yoke 17 covers first accommodating chamber 19, and the bottom of the frame 15 is arranged in；The center magnet steel 3 is set The middle position in 17 upper surface of yoke is set, and is located in the first accommodating chamber 19；The upper surface of the frame 15 and front cover 16 lower surface connection；

16 lower surface of front cover is equipped with the second accommodating chamber 20 upwardly extended；First accommodating chamber 19 and described second Accommodating chamber 20 is connected to, and forms an accommodating chamber between the two, and the vibrating diaphragm component 1 is located in the accommodating chamber；The sound film 4 Outer edge is located between the upper surface of frame 15 and the lower surface of front cover 16, and the sound film 4 respectively with frame 15 and front cover 16 Connection；Annular washer 21 insertion is arranged on the inner wall of the frame 15, and the annular washer 21 is located at first and accommodates In chamber 19；22 upper end of side magnet steel is connect with the lower surface of the annular washer 21,22 lower end of side magnet steel and the yoke The upper surface of iron 17 connects；

The top dome 5 includes along horizontally disposed first 25, along the vertical direction be arranged second 26 and along level side To the convex edge of setting 10, described first 25 is located at right above the hollow out through-hole 6, and first 25 outer edge is vertically equipped with Described second 26, second 26 bottom end is vertically equipped with the convex edge 10, and the upper table of sound film 4 is arranged in the convex edge 10 Face；Second plate 12 is arranged along the vertical direction, and second plate 12 is leaned on close to second 26 outer wall with second 26 The distance between outer wall of nearly second plate 12 is second distance 24, and the second distance 24 is 0.15-0.25mm.

In conclusion the utility model provides a kind of loudspeaker, the middle position of sound film upper surface is logical equipped with hollow out Hole can reduce sound film weight, promote Microspeaker sensitivity, while top dome covers the hollow out through-hole, the top dome is set It sets in sound film upper surface, and top dome lower surface is equipped with the first groove upwardly extended, compared with traditional top dome, in use The roof structure design method stated, can increase the distance of center washer to top dome, thus in the premise for not increasing loudspeaker volume Under, boss (material of its boss is identical as the material of center magnet steel) can be set in center magnet steel upper surface, thus in increasing The thickness of heart magnet steel, and it is capable of increasing the thickness of center washer, and then promote the magnetic field strength of magnetic circuit system, to promote production The Performance Sensitivity of product.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in other relevant technologies Field is also included in the patent protection scope of the utility model.

Claims

1. a kind of loudspeaker, which is characterized in that including the vibrating diaphragm component, center washer and center being cascading from top to down Magnet steel；

The vibrating diaphragm component includes sound film and top dome；The middle position of sound film upper surface is equipped with hollow out through-hole, the top dome The hollow out through-hole is covered, and is arranged in sound film upper surface, the top dome is equipped with upward close to the lower surface of the sound film The first groove extended, first groove are connected to the hollow out through-hole；

Center magnet steel upper surface is equipped with boss, and center washer lower surface is equipped with the second groove upwardly extended, described Boss is connect with second groove.

2. a kind of loudspeaker according to claim 1, which is characterized in that the shape of the longitudinal cross-section of the top dome is U Shape, the top dome bottom are equipped with the convex edge extended to the ring direction of sound film, and the upper surface of the sound film is arranged in the convex edge.

3. a kind of loudspeaker according to claim 1, which is characterized in that the center washer includes the first plate, the second plate With third plate；

The lower surface of the third plate and the upper surface of boss connect；Second plate is enclosed around the boss one, and the second plate Bottom the upper surface of the center magnet steel is set, the top of second plate is connect with the side wall of first plate, described The side wall of second plate is connect with plateau sidewall；The third plate is vertical with second plate to be connect, and third plate lower surface is arranged In the upper surface of the center magnet steel.

4. a kind of loudspeaker according to claim 3, which is characterized in that the shape of the hollow out through-hole and the first groove is equal It is rectangular；The thickness of first plate, the second plate and third plate is equal；

First plate upper surface is equal with preset first distance at a distance from first groove top, the first distance For third plate upper surface to the distance of sound film lower surface.

5. a kind of loudspeaker according to claim 4, which is characterized in that the top dome includes along horizontally disposed first Portion, second be arranged along the vertical direction and horizontally disposed convex edge, the first position in the hollow out through-hole just Top, and first outer edge is vertically equipped with described second, second bottom end is vertically equipped with the convex edge, described The upper surface of sound film is arranged in convex edge；Second plate is arranged along the vertical direction, and second plate is outside described second The distance between outer wall of wall and second close second plate is second distance, and the second distance is 0.15-0.25mm.

6. a kind of loudspeaker according to claim 1, which is characterized in that further include frame, front cover, yoke and voice coil, institute Frame is stated with the first accommodating chamber, first accommodating chamber penetrates through the upper and lower surfaces of frame respectively；The yoke covering First accommodating chamber, and the bottom of the frame is set；The centre of the yoke upper surface is arranged in the center magnet steel Position, and be located in the first accommodating chamber；The upper surface of the frame and the lower surface of front cover connect；

The front cover lower surface is equipped with the second accommodating chamber upwardly extended；First accommodating chamber and second accommodating chamber connect It is logical, and an accommodating chamber is formed between the two, the vibrating diaphragm component is located in the accommodating chamber；The outer edge of the sound film is located at basin Between the upper surface of frame and the lower surface of front cover, and the sound film is connect with frame and front cover respectively.

7. a kind of loudspeaker according to claim 6, which is characterized in that further include annular washer and side magnet steel, the ring The insertion of shape washer is arranged on the inner wall of the frame, and the annular washer is located in the first accommodating chamber；On the side magnet steel It holds and is connect with the lower surface of the annular washer, side magnet steel lower end is connect with the upper surface of the yoke.