CN213126466U

CN213126466U - Sound production monomer and speaker box

Info

Publication number: CN213126466U
Application number: CN202022145554.4U
Authority: CN
Inventors: 吴军; 杨虎虎; 任圣
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-04
Anticipated expiration: 2030-09-25
Also published as: WO2022062008A1

Abstract

The utility model provides a sound production monomer and speaker box, the sound production monomer is including the sound membrane of vibration sound production, be fixed in the sound membrane and drive the voice coil loudspeaker voice coil of sound membrane vibration sound production and be used for supporting the basin frame of sound membrane, and the sound membrane is including the first vibrating part that is located basin frame top and the second vibrating part that extends the formation from the edge orientation basin frame of first vibrating part, and the one end of keeping away from first vibrating part of second vibrating part is fixed with the basin frame, and the second vibrating part includes along perpendicular vibration direction orientation or keeps away from at least one flexion that the voice coil loudspeaker voice coil is sunken. The second vibrating piece is positioned between the first vibrating piece and the basin frame to realize the connection of the sound membrane and the basin frame, so that the vibration area of the sound membrane not only comprises the area of the first vibrating piece, but also comprises the area of the second vibrating piece; through setting up the area in order to increase the second vibrating member of at least one flexion to the effective vibration area of sound membrane has been increased, use this technical scheme promptly with the effective vibration area enlargement of sound membrane, can effectively improve the acoustic performance of sound production device.

Description

Sound production monomer and speaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a sound production monomer and speaker box.

[ background of the invention ]

With the rapid development of electronic information technology, more and more sounding devices are applied to various electronic products, especially mobile communication devices widely applied by people, and people not only care about miniaturization and multifunction, but also require high-quality voice effect.

The sound production device drives a sound membrane in the vibration system to vibrate through the magnetic circuit system, the air is repeatedly pushed to realize sound production, the sound membrane is used as a core component of the sound production device, and the performance of the sound production device is directly influenced by the quality of the design of the sound membrane. The effective vibration area (Sd) of the sound membrane of the sound generating device in the prior art is small, and the acoustic performance of the sound generating device is affected accordingly.

Therefore, it is necessary to provide a new sound generating unit and a speaker box to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a sound production monomer and speaker box to increase the effective vibration area of sound membrane, improve the free acoustic performance of sound production.

For this reason, according to the first aspect, an embodiment provides a sound production monomer, sound production monomer is including vibrating the sound membrane of sound production, be fixed in sound membrane and drive the voice coil loudspeaker voice coil of sound membrane vibration sound production with be used for supporting the basin frame of sound membrane, the sound membrane is including being located the first vibrating member of basin frame top and certainly the edge orientation of first vibrating member the second vibrating member that the basin frame extension formed, keeping away from of second vibrating member the one end of first vibrating member is fixed with the basin frame, the second vibrating member includes along vertical vibration direction orientation or keeps away from at least one flexion that the voice coil loudspeaker voice coil is sunken.

As a modification, the bending portion includes a first bending portion and a second bending portion arranged in order from an edge of the first vibrating member toward a direction away from the first vibrating member, and an opening of the first bending portion is directed opposite to an opening of the second bending portion.

As a modification, the first bending portion is formed by the second vibrating member being recessed away from the voice coil in the vertical vibrating direction, and the second bending portion is formed by the second vibrating member being recessed toward the voice coil in the vertical vibrating direction.

As a modification, the first bending portion has a semicircular cross section in the vibration direction of the first vibrating member, and the second bending portion has a semicircular cross section in the vibration direction of the first vibrating member.

As a refinement, the radius of the second curved portion is greater than the radius of the first curved portion.

As a modification, the second vibrating member further includes a fixing portion formed to extend from a distal end of the bent portion in a direction away from the first vibrating member.

As a modification, an outer edge of an orthogonal projection of the first bending portion in the vibration direction of the first vibrating member coincides with an outer edge of an orthogonal projection of the fixing portion in the vibration direction of the first vibrating member.

As an improvement, the inner wall surface of the basin frame is concavely provided with a limiting notch for accommodating the fixing part.

As an improvement, the outer surface of the fixing part is flush with the outer wall surface of the basin frame.

According to a second aspect, an embodiment provides a loudspeaker enclosure comprising a sound generating cell according to the first aspect.

The beneficial effects of the utility model reside in that:

the second vibrating piece is positioned between the first vibrating piece and the basin frame to realize the connection of the sound membrane and the basin frame, so that the vibration area of the sound membrane not only comprises the area of the first vibrating piece, but also comprises the area of the second vibrating piece; the second vibrating piece includes at least one flexion, and the flexion is followed perpendicular vibration direction orientation by the second vibrating piece or is kept away from the sunken formation of voice coil loudspeaker voice coil, and consequently, the second vibrating piece is the curve type towards walking the line of basin frame, and is not the linear type to the area of increase second vibrating piece, thereby increased the effective vibration area of sound membrane, use this technical scheme to enlarge the effective vibration area of sound membrane promptly, can effectively improve the free acoustic performance of sound production.

[ description of the drawings ]

Fig. 1 is a schematic view of an overall structure of a sound generating unit according to an embodiment of the present invention;

FIG. 2 is an exploded view of the sound generating unit of FIG. 1;

FIG. 3 is a schematic view of the sound diaphragm of the sound generating unit of FIG. 1;

FIG. 4 is a sectional view taken along A-A of the sounding unit of FIG. 1;

fig. 5 is a partially enlarged view of C in fig. 4.

[ detailed description ] embodiments

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 2 and fig. 4, the present invention provides a sounding unit 100, which includes a frame 110, a magnetic circuit system 130 fixed on the frame 110, and a vibration system 120, wherein the vibration system 120 includes a diaphragm 10 and a voice coil 20 fixed on the diaphragm 10 and driving the diaphragm 10 to vibrate and sound, and the magnetic circuit system 130 is used for driving the diaphragm 10 of the vibration system 120 to vibrate and sound.

The embodiment of the present invention provides a sound generating unit 100 for generating sound by vibration, wherein the sound membrane 10 has a larger effective vibration area, so as to improve the acoustic performance of the sound generating unit 100.

In the embodiment of the present invention, referring to fig. 3, the diaphragm 10 includes a first vibrating member 11 and a second vibrating member 12, wherein the second vibrating member 12 is formed by extending from an edge of the first vibrating member 11 toward the frame 110, one end of the second vibrating member 12 away from the first vibrating member 11 is fixed to the frame 110, and the second vibrating member 12 includes at least one bending portion 121 recessed toward or away from the voice coil 20 along the vertical vibration direction.

In the present invention, the second vibrating member 12 is located between the first vibrating member 11 and the frame 110 to connect the sound membrane 10 to the frame 110, so that the vibration area of the sound membrane 10 includes not only the area of the first vibrating member 11 but also the area of the second vibrating member 12; the second vibrating member 12 includes at least one bending portion 121, and the bending portion 121 is formed by the second vibrating member 12 being recessed toward or away from the voice coil 20 along the vertical vibration direction, and therefore, the second vibrating member 12 is curved, not linear, toward the wire of the frame 110, so as to increase the area of the second vibrating member 12, thereby increasing the effective vibration area of the sound diaphragm 10, that is, the effective vibration area of the sound diaphragm 10 is expanded by using the technical scheme, and the acoustic performance of the sound generating unit 100 can be effectively improved.

Furthermore, the diaphragm 10 further includes a dome 13 located at the middle of the first vibrating member 11, and the voice coil 20 is located below the dome 13 to drive the diaphragm 10 to vibrate and generate sound

Referring to fig. 3-5, in an embodiment, the bending portion 121 includes a first bending portion 1211 and a second bending portion 1212 which are sequentially arranged from an edge of the first vibrating member 11 toward a direction away from the first vibrating member 11.

It should be noted that there may be one or more first curved portions 1211 and second curved portions 1212, and the first curved portions 1211 and the second curved portions 1212 are arranged in sequence from the edge of the first vibrating member 11 toward a direction away from the first vibrating member 11 regardless of the number of the first curved portions 1211 and the second curved portions 1212, and the arrangement direction of the first curved portions 1211 and the second curved portions 1212 is indicated by arrows in fig. 4.

The first curved portion 1211 and the second curved portion 1212 may have the same or opposite opening directions. When the first curved portion 1211 and the second curved portion 1212 have the same opening direction, the joint between the first curved portion 1211 and the second curved portion 1212 is easily overlapped, and the effective vibration area of the sound diaphragm 10 is increased to a smaller extent.

Preferably, the opening of the first curved portion 1211 faces opposite to the opening of the second curved portion 1212. For example, referring to fig. 5, in the figure, the first bending portion 1211 and the second bending portion 1212 are both one, and the first bending portion 1211 and the second bending portion 1212 with opposite opening directions form the bending portion 121, so that the area of the bending portion 121 can be further increased, that is, the effective vibration area of the sound membrane 10 can be increased, and the structural stability and the stress stability of the bending portion 121 can be ensured.

In some specific embodiments, the opening directions of the first bending portion 1211 and the second bending portion 1212 are defined, and since the first bending portion 1211 and the second bending portion 1212 are sequentially arranged from the edge of the first vibrating member 11 toward the direction away from the first vibrating member 11, in order to avoid the first bending portion 1211 overlapping with the first vibrating member 11 when formed, the first bending portion 1211 is configured to be formed by the second vibrating member 12 being recessed away from the voice coil 20 in the vertical vibrating direction, that is, the opening of the first bending portion 1211 faces the inside of the sound diaphragm 10; the second bending portion 1212 is formed by the second vibrating member 12 being recessed toward the voice coil 20 along the vertical vibrating direction, i.e. the opening of the second bending portion 1212 is toward the outside of the diaphragm 10, ensuring that the first bending portion 1211 is opened in the opposite direction to the second bending portion 1212.

In some specific embodiments, a section of the first curved portion 1211 in the vibration direction of the first vibration member 11 and a section of the second curved portion 1212 in the vibration direction of the first vibration member 11 may have a semicircular shape, an elliptical shape, or other shapes. Preferably, referring to fig. 5, a section of the first curved portion 1211 in the vibration direction of the first vibrating member 11 and a section of the second curved portion 1212 in the vibration direction of the first vibrating member 11 are each semicircular.

In one embodiment, the radius of the second curve 1212 is greater than the radius of the first curve 1211. The first bent portion 1211 protrudes from the inside of the sound diaphragm 10 to the outside thereof, and thus, the first bent portion 1211 protrudes relatively from the first vibrating member 11; the second bending portion 1212 is recessed from the outside of the diaphragm 10 to the inside thereof, and therefore, the second bending portion 1212 is recessed relatively inward of the first vibrating member 11. The radii of the first bending portion 1211 and the second bending portion 1212 are defined, so that the radius of the second bending portion 1212 is larger than the radius of the first bending portion 1211, that is, the area of the second bending portion 1212 recessed in the first vibrating element 11 is enlarged, and the area of the first bending portion 1211 protruding out of the first vibrating element 11 is reduced, which not only ensures that the effective vibration area of the sound membrane 10 can be maximized, but also ensures that the volume of the sound membrane 10 can be miniaturized, so as to meet the requirement of miniaturization of the sound generating unit 100.

In addition, the second vibrator 12 further includes a fixing portion 122 formed to extend from the tip of the bent portion 121 in a direction away from the first vibrator 11. The fixing portion 122 is used for fixing with the frame 110, and the bending portion 121 is located between the first vibrating member 11 and the fixing portion 122, so that the vibrating effect of the bending portion 121 is effectively ensured.

In some specific embodiments, the outer edge of the orthographic projection of first bending portion 121 in the vibration direction of first vibrating member 11 coincides with the outer edge of the orthographic projection of fixing portion 122 in the vibration direction of first vibrating member 11. That is, the first bending portion 1211 and the fixing portion 122 determine the volume of the sound membrane 10, and the fixing portion 122 is formed by extending the end of the bending portion 121, and the fixing portion 122 is disposed such that the outer edge of the orthographic projection of the fixing portion 122 in the vibration direction of the first vibrating member 11 is overlapped with the outer edge of the orthographic projection of the first bending portion 1211 in the vibration direction of the first vibrating member 11, thereby preventing the fixing portion 122 from protruding out of the first bending portion 1211 to increase the volume of the sound membrane 10, and maximizing the area of the connection between the bending portion 121 and the fixing portion 122.

In an embodiment of the sound generating unit 100, the outer wall surface of the frame 110 is recessed to form the limiting notch 110a, and the fixing portion 122 of the first vibrating member 11 is received in the limiting notch 110a to connect the sound membrane 10 and the frame 110.

In some embodiments, the outer surface of the fixing portion 122 is flush with the outer wall surface of the frame 110, so that the outer surface of the first bending portion 1211, the outer surface of the fixing portion 122 and the outer wall surface of the frame 110 are flush with each other, which improves the overall aesthetic property of the sounding unit 100; meanwhile, the fixing portion 122 and the first bending portion 1211 are prevented from protruding from the frame 110 to increase the volume of the entire sounding unit 100, which is not favorable for forming the miniaturized sounding unit 100.

In some embodiments, referring to fig. 2 and 5, a curved surface 123 is formed between the end of the bending portion 121 and the fixing portion 122; the frame 110 is provided with a chamfer structure 110b, and when the fixing part 122 is assembled to the limit notch 110a of the frame 110, the curved surface 123 is assembled with the chamfer structure 110b in a matching way.

Further, referring to fig. 2, the frame 110 is a hollow rectangle, the magnetic circuit system 130 includes a magnetic bowl 30 fixedly connected to an end of the frame 110 away from the sound diaphragm 10, a main magnetic steel 40 and an auxiliary magnetic steel 50 sandwiched between the frame 110 and the magnetic bowl 30, and a pole core 60 attached to the main magnetic steel 40, the auxiliary magnetic steel 50 is disposed around the main magnetic steel 40 to form a magnetic gap, and the voice coil 20 is at least partially located in the magnetic gap.

In a specific embodiment, the magnetic bowl 30 includes a first clamping portion 31 for clamping the main magnetic steel 40 and a second clamping portion 32 for clamping the secondary magnetic steel 50.

In addition, the frame 110 extends towards the magnetic bowl 30 to form a positioning column 110c, the second clamping portion 32 is provided with a first positioning notch 321, the auxiliary magnetic steel 50 is provided with a second positioning notch 51, and the positioning column 110c, the first positioning notch 321 and the second positioning notch 51 are coaxially arranged, so that when the magnetic circuit system 130 is assembled, the positioning column 110c is assembled in the first positioning notch 321 and the second positioning notch 51 to maintain the relative stability of the magnetic circuit system 130 and the frame 110.

In an embodiment, the utility model also provides a speaker box, this speaker box includes foretell sound production monomer 100 to improve speaker box's acoustic performance, keep its miniaturization.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a sound production monomer, sound production monomer includes the sound membrane of vibration sound production, is fixed in sound membrane and drive the voice coil loudspeaker voice coil of sound membrane vibration sound production with be used for supporting the basin frame of sound membrane, a serial communication port, the sound membrane is including being located the first vibrating part of basin frame top and certainly the edge orientation of first vibrating part the second vibrating part that the basin frame extended the formation, keeping away from of second vibrating part the one end of first vibrating part is fixed with the basin frame, the second vibrating part includes along perpendicular vibration direction orientation or keeps away from at least one flexion that the voice coil loudspeaker voice coil is sunken.

2. The sound generating unit of claim 1, wherein: the bending part comprises a first bending part and a second bending part which are sequentially arranged from the edge of the first vibrating part to the direction far away from the first vibrating part, and the opening of the first bending part is opposite to the opening of the second bending part.

3. The sound generating unit according to claim 2, wherein the first bending portion is formed by the second vibrating member being recessed away from the voice coil in the vertical vibration direction, and the second bending portion is formed by the second vibrating member being recessed toward the voice coil in the vertical vibration direction.

4. The sounding unit according to claim 3, wherein the first bending portion has a semicircular cross section in the vibration direction of the first vibration member, and the second bending portion has a semicircular cross section in the vibration direction of the first vibration member.

5. The sound generating unit of claim 4, wherein the radius of the second curved portion is greater than the radius of the first curved portion.

6. The sounding unit according to any one of claims 3 to 5, wherein the second vibrating member further includes a fixing portion formed to extend from a distal end of the bent portion in a direction away from the first vibrating member.

7. The sounding cell according to claim 6, wherein an outer edge of an orthographic projection of the first bending portion in the vibration direction of the first vibration member coincides with an outer edge of an orthographic projection of the fixing portion in the vibration direction of the first vibration member.

8. The sounding unit according to claim 7, wherein the outer wall of the frame is recessed to form a limit notch for receiving the fixing portion.

9. The sound generating unit as claimed in claim 8, wherein the outer surface of the fixing portion is flush with the outer wall surface of the frame.

10. A loudspeaker enclosure comprising a sound-generating cell as claimed in any one of claims 1-9.