CN213661931U

CN213661931U - High-power thin foam sound film loudspeaker

Info

Publication number: CN213661931U
Application number: CN202023199609.6U
Authority: CN
Inventors: 洪克军; 华克; 徐国荣
Original assignee: JIANGSU YUCHENG ELECTRONIC CO Ltd
Current assignee: JIANGSU YUCHENG ELECTRONIC CO Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-07-09
Anticipated expiration: 2030-12-25

Abstract

The utility model belongs to the technical field of the electro-acoustic conversion technique and specifically relates to a high-power slim bubble cotton sound membrane speaker, install magnetic circuit in the basin frame inner chamber, the top of basin frame is equipped with vibration system, vibration system includes sound membrane and voice coil loudspeaker voice coil, the sound membrane lid is established on the basin frame, both ends below of voice coil loudspeaker voice coil all is equipped with the FPC board, FPC board one end is embraced on magnetic circuit, the other end clamp of FPC board is established between basin frame and magnetic circuit, the FPC board plays the balanced effect of bullet ripples, be under the big amplitude's of bass condition of bubble cotton sound membrane speaker, the roll vibration phenomenon reduces, just so can reach higher loudness without increasing the magnetic gap; meanwhile, the FPC board is used as a conducting part, the voice coil wire is welded on a bonding pad of the FPC board, and the root of the voice coil is basically not stressed during vibration, so that the risk of power-tolerant wire breakage can be solved; based on the above-mentioned characteristics, the design power of the speaker can be effectively increased.

Description

High-power thin foam sound film loudspeaker

Technical Field

The utility model belongs to the technical field of the electroacoustic conversion technique and specifically relates to a high-power slim bubble cotton sound membrane speaker.

Background

In recent years, with the improvement of sound quality requirements of electronic products (computers, tablets, mobile phones and the like), the used speaker products need to be optimized and changed in design. The common sound film loudspeaker made of foam cotton has larger amplitude and better low-frequency effect, so that the rolling vibration phenomenon of the loudspeaker is relatively serious, and the reduction of the pure sound yield and the wire breakage risk of a tolerance experiment are brought. Aiming at the two problems, the current solution is that the large magnetic gap reduces the bad magnetic circuit of voice coil collision caused by rolling vibration and the wire line reduces the risk of wire breakage of tolerance experiment. But increasing the magnetic gap has a certain sacrifice on loudness; the silk yarn can only maintain the conventional design in power due to the limitation of the production process, and meanwhile, the cost is increased greatly.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provided is a high-power thin foam sound film speaker which can improve power.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high-power slim bubble cotton sound membrane speaker, is including the basin frame that has the cavity, installs magnetic circuit in the basin frame inner chamber, and the top of basin frame is equipped with vibration system, and vibration system includes sound membrane and voice coil loudspeaker voice coil, and the sound membrane lid is established on the basin frame, and the both ends below of voice coil loudspeaker voice coil all is equipped with the FPC board, and FPC board one end is embraced on magnetic circuit, and the other end clamp of FPC board is established between basin frame and magnetic circuit.

Furthermore, the magnetic circuit system comprises a magnetic bowl and a middle magnetic steel, the magnetic bowl is provided with the middle magnetic steel, the middle magnetic steel is provided with a middle polar plate, two side edges of the middle magnetic steel are provided with side magnetic steels, a gap is formed between the middle magnetic steel and the side magnetic steels, and a voice coil is arranged in the gap; one end of the FPC board is clasped at two ends of the middle magnetic steel, and the other end of the FPC board is clamped between the basin frame and the magnetic bowl.

Furthermore, a groove is formed in the peripheral wall of the inner cavity of the basin frame, a side polar plate is clamped in the groove and located above the side magnetic steel.

Furthermore, bulges are arranged on the bottom surfaces of the two sides of the basin stand, and FPC boards are clamped on the bulges.

Furthermore, basin frame supports are arranged on the bottom surfaces of the side edges of the basin frame in the length direction, clamping grooves are formed in the side edges of the magnetic bowls, and the basin frame supports are clamped in the clamping grooves, so that the magnetic bowls are fastened in the basin frame and glued through glue.

Furthermore, the lead wire on the voice coil is welded on the FPC board.

Furthermore, the sound film comprises a folding ring and a dome, the dome is arranged in a cavity in the middle of the folding ring, the folding ring is a foam folding ring, and the dome is a paper dome.

The utility model has the advantages that: the FPC board plays a balance role of elastic waves, and the rolling vibration phenomenon of the foam sound film loudspeaker is reduced under the condition of large bass amplitude, so that the magnetic gap does not need to be increased, and higher loudness is achieved;

meanwhile, the FPC board is used as a conducting part, the voice coil wire is welded on a bonding pad of the FPC board, and the root of the voice coil is basically not stressed during vibration, so that the risk of power-tolerant wire breakage can be solved; based on the above-mentioned characteristics, the design power of the speaker can be effectively increased.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of the present invention;

FIG. 2 is a sectional view taken along the line A-A of the present invention;

FIG. 3 is a cross-sectional view taken along the direction B-B of the present invention;

fig. 4 is an exploded view of the present invention;

FIG. 5 is a schematic structural view of the basin stand of the present invention;

fig. 6 is a schematic view of the present invention in another direction as shown in fig. 5;

fig. 7 is a perspective view of the utility model after the installation.

In the figure: 1. a vibration system, 1-1, a sound film, 1-2, a voice coil, 1-3, an FPC board, 1-1-1, a folded ring, 1-1-2, a ball top,

2. magnetic circuit system, 2-1 magnetic bowl, 2-2 magnetic steel on side, 2-3 polar plate on side, 2-4 middle polar plate, 2-5 magnetic steel on middle,

3. a basin frame, 3-1 grooves and 3-2 bulges.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The high-power thin foam sound film loudspeaker comprises a basin frame 3 with a cavity, a magnetic circuit system 2 is installed in the inner cavity of the basin frame 3, a vibration system 1 is arranged above the basin frame 3, the vibration system 1 comprises a sound film 1-1 and a voice coil 1-2, the sound film 1-1 is covered on the basin frame 3, FPC boards 1-3 are arranged below two ends of the voice coil 1-2, one end of each FPC board 1-3 is embraced on the magnetic circuit system 2, the other end of each FPC board 1-3 is clamped between the basin frame 3 and the magnetic circuit system 2, and a lead on the voice coil 1-2 is welded on a bonding pad of the FPC boards 1-3.

The magnetic circuit system 2 comprises a magnetic bowl 2-1 and middle magnetic steel 2-5, the middle magnetic steel 2-5 is arranged on the magnetic bowl 2-1, a middle polar plate 2-4 is arranged on the middle magnetic steel 2-5, side magnetic steel 2-2 is arranged on two side edges of the middle magnetic steel 2-5, a gap is formed between the middle magnetic steel 2-5 and the side magnetic steel 2-2, and a voice coil 1-2 is arranged in the gap; one end of the FPC board 1-3 is clasped at two ends of the middle magnetic steel 2-5, and the other end of the FPC board 1-3 is clamped between the basin frame 3 and the magnetic bowl 2-1.

The peripheral wall of the inner cavity of the basin frame 3 is provided with a groove 3-1, a side polar plate 2-3 is clamped in the groove 3-1, and the side polar plate 2-3 is positioned above the side magnetic steel 2-2.

The bottom surfaces of two side edges of the basin frame 3 are respectively provided with a bulge 3-2, and the bulge 3-2 is clamped with an FPC board 1-3.

The bottom surfaces of the side edges of the pot frame 3 in the length direction are respectively provided with a pot frame support, the side edges of the magnetic bowls 2-1 are provided with clamping grooves, and the pot frame supports are clamped in the clamping grooves, so that the magnetic bowls 2-1 are fastened in the pot frame 3 and glued through glue.

The sound film 1-1 comprises a folding ring 1-1-1 and a dome 1-1-2, the dome 1-1-2 is arranged in a cavity in the middle of the folding ring 1-1-1, the folding ring 1-1-1 is a foam folding ring, and the dome 1-1-2 is a paper dome.

During specific assembly, the side pole plates 2-3 are firstly clamped in the grooves 3-1 of the basin frame 3, then the middle magnetic steel 2-5 is arranged in the cavity of the basin frame 3 and is positioned above the magnetic bowl 2-1, the middle pole plate 2-4 is glued on the middle magnetic steel 2-5, the side magnetic steel 2-2 is arranged on two sides of the middle magnetic steel 2-5 in the length direction, the side magnetic steel 2-2 is arranged below the side pole plate 2-3, one end of the FPC board 1-3 is glued with the middle magnetic steel 2-5 through glue, the other end of the FPC board 1-3 and the side magnetic steel 2-2 are glued with the magnetic bowl 2-1, meanwhile, leads on the voice coil 1-2 are welded on a bonding pad of the FPC board 1-3, the magnetic bowl 2-1 is buckled in the basin frame 3 and is also glued through glue, at the moment, the FPC board 1-3 is clamped on the bulge 3-2, and the FPC board 1-3 is further fixed;

the voice coil 1-2 is arranged in the gap between the middle magnetic steel 2-5 and the side magnetic steel 2-2, the bottom surface of the voice coil 1-2 is glued on the FPC board 1-3 through glue, the upper surface of the voice coil 1-2 is glued on the voice film 1-1 through glue, and finally, the voice film 1-1 is assembled on the basin frame 3, so that the loudspeaker is assembled as shown in fig. 7.

Finally, the part of the FPC board 1-3 extending out of the basin frame 3 is cut off, and the final molding state is shown in figures 1-4.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a high-power slim bubble cotton sound membrane speaker, includes basin frame (3) that have the cavity, its characterized in that: a magnetic circuit system (2) is arranged in the inner cavity of the basin frame (3), a vibration system (1) is arranged above the basin frame (3),

the vibration system (1) comprises a sound film (1-1) and a voice coil (1-2), the sound film (1-1) is covered on the basin frame (3), FPC boards (1-3) are arranged below two ends of the voice coil (1-2), one end of each FPC board (1-3) is embraced on the magnetic circuit system (2), and the other end of each FPC board (1-3) is clamped between the basin frame (3) and the magnetic circuit system (2).

2. The high power thin type foam sound film speaker as claimed in claim 1, wherein: the magnetic circuit system (2) comprises a magnetic bowl (2-1) and middle magnetic steel (2-5), the middle magnetic steel (2-5) is arranged on the magnetic bowl (2-1), a middle polar plate (2-4) is arranged on the middle magnetic steel (2-5), side magnetic steel (2-2) is arranged on two side edges of the middle magnetic steel (2-5), a gap is formed between the middle magnetic steel (2-5) and the side magnetic steel (2-2), and a voice coil (1-2) is arranged in the gap;

one end of the FPC board (1-3) is clasped at two ends of the middle magnetic steel (2-5), and the other end of the FPC board (1-3) is clamped between the basin frame (3) and the magnetic bowl (2-1).

3. The high power thin type foam sound film speaker as claimed in claim 2, wherein: the peripheral wall of the inner cavity of the basin frame (3) is provided with a groove (3-1), a side polar plate (2-3) is clamped in the groove (3-1), and the side polar plate (2-3) is positioned above the side magnetic steel (2-2).

4. The high power thin type foam sound film speaker as claimed in claim 1, wherein: the bottom surfaces of two side edges of the basin frame (3) are respectively provided with a bulge (3-2), and the bulges (3-2) are clamped with FPC boards (1-3).

5. The high power thin type foam sound film speaker as claimed in claim 2, wherein: the pot rack is characterized in that pot rack supports are arranged on the bottom surfaces of the side edges of the pot rack (3) in the length direction, clamping grooves are formed in the side edges of the magnetic bowls (2-1), and the pot rack supports are clamped in the clamping grooves, so that the magnetic bowls (2-1) are fastened in the pot rack (3) and glued through glue.

6. The high power thin type foam sound film speaker as claimed in claim 1, wherein: and the lead wire on the voice coil (1-2) is welded on the FPC board (1-3).

7. The high power thin type foam sound film speaker as claimed in claim 1, wherein: the sound film (1-1) comprises a folded ring (1-1-1) and a dome (1-1-2), the dome (1-1-2) is arranged in a cavity in the middle of the folded ring (1-1-1), the folded ring (1-1-1) is a foam folded ring, and the dome (1-1-2) is a paper dome.