CN217183469U

CN217183469U - Loudspeaker

Info

Publication number: CN217183469U
Application number: CN202220832068.6U
Authority: CN
Inventors: 古文达
Original assignee: Dongguan Yuanzhili Acoustics Co ltd
Current assignee: Dongguan Yuanzhili Acoustics Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-12
Anticipated expiration: 2032-04-11

Abstract

The utility model belongs to the technical field of loudspeakers, in particular to a loudspeaker, which comprises a main shell, a magnetic circuit component and a sounding component; a first end face is arranged on the outer side of the main shell, the middle part of the first end face of the main shell is inwards sunken to form a protruding part, the magnetic circuit assembly is arranged around the protruding part, and a clearance gap is arranged between the magnetic circuit assembly and the protruding part; the sounding assembly comprises a voice coil, and the voice coil is arranged in the clearance; the utility model provides a main magnet that can produce magnetic field that traditional speaker used has been saved to the inside of speaker, constitutes through the inner structure who has simplified the speaker, and reduce cost reduces the size, further improves the inner space utilization of speaker.

Description

Loudspeaker

Technical Field

The utility model belongs to the technical field of loudspeaker, especially, relate to a loudspeaker.

Background

The micro loudspeaker mainly comprises a frame, magnetic steel, a pole piece, a sound film, a voice coil, a front cover, a wiring board, damping cloth and the like, wherein a magnetic circuit system of the loudspeaker forms an annular magnetic gap, a uniform magnetic field is distributed in the annular magnetic gap, a vibration system of the loudspeaker comprises an annular voice coil wound by a lead and a vibration film connected with the annular voice coil, after signal voltage is fed into the voice coil, current is generated, the voice coil cuts magnetic lines of force, acting force is generated, the vibration film is driven to move up and down together, and the vibration film drives air to generate corresponding sound; with the development of ultra-thin electronic products, the demand for small-sized and high-power speakers is increased, and the conventional small-sized speakers are difficult to be separated from the conventional speaker structure, so that the size and space of the speakers are difficult to be further reduced, and the existing market and production requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a loudspeaker aims at solving the technical problem that the speaker size and the space among the prior art are difficult to satisfy the demand in current market.

In order to achieve the above object, an embodiment of the present invention provides a speaker, which includes a main casing, a magnetic circuit assembly and a sound generating assembly; a first end face is arranged on the outer side of the main shell, the middle of the first end face of the main shell is inwards sunken to form a protruding portion, the magnetic circuit assembly is arranged around the protruding portion, and a clearance is arranged between the magnetic circuit assembly and the protruding portion; the sound production assembly comprises a voice coil, and the voice coil is arranged in the clearance.

Optionally, an edge of the first end surface of the main shell extends to form a shell outer ring, an accommodating cavity is formed between the shell outer ring and the first end surface of the main shell, the protrusion is arranged in the accommodating cavity, and an accommodating space for accommodating the magnetic circuit assembly is arranged between a side surface of the protrusion and the shell outer ring.

Optionally, the magnetic circuit assembly comprises a ring magnet; the annular magnet is sleeved on the periphery of the bulge part; the convex part is arranged in a cylindrical structure, and the clearance gap with uniform magnetic field is formed between the side surface of the convex part and the inner ring of the annular magnet.

Optionally, the magnetic circuit assembly further comprises a washer for magnetic conduction; the washer is arranged on the annular magnet.

Optionally, the housing outer ring is provided with a notch for a lead to pass through.

Optionally, the middle part of the first end surface of the main shell is arched outwards to form a boss, and the middle part of the boss is sunken inwards to form the boss.

Optionally, the speaker further comprises a PCB board; the PCB is fixed on the first end face of the main shell, and the PCB is sleeved on the periphery of the boss.

Optionally, the speaker further comprises a tuning net; the tuning net is electrically connected with the PCB, and the tuning net is arranged on the boss.

Optionally, the main housing is provided with a clearance groove, and the clearance groove is arranged around the periphery of the boss to increase the movable space of the voice coil.

Optionally, the speaker further comprises a protective cover; the protecting cover is connected with the outer ring of the shell so that the accommodating cavity forms a closed space

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the speaker have one of following technological effect at least: the middle part of the first terminal surface of owner shell inwards caves in and forms the bellying, it is corresponding, one side of the outside direction of bellying is hollow structure setting, compare with traditional speaker, the bellying through sunken formation has replaced the main magnet of traditional speaker in this embodiment, encircle the bellying setting with magnetic circuit assembly, magnetic circuit assembly can produce magnetic field, it has magnetic field to make the clearance of keeping away who forms between magnetic circuit assembly and the bellying, arrange the voice coil loudspeaker voice coil in keeping away in the clearance, after the voice coil loudspeaker voice coil received signal voltage, voice coil loudspeaker voice coil cutting magnetic line and production effort, thereby drive the vibrating diaphragm motion sound production among the sound production subassembly, the inside of the speaker that this embodiment provided saves the main magnet that traditional speaker used can produce magnetic field, constitute through the inner structure who has simplified the speaker, and therefore, the cost is reduced, the size is reduced, the inner space utilization ratio of speaker is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an exploded schematic view of a speaker according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a speaker according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a speaker according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a main housing according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a main housing according to an embodiment of the present invention.

Wherein, in the figures, the various reference numbers:

10-main shell 11-first end face 12-lug boss

13-shell outer ring 14-gap 15-boss

16-clearance groove 20-magnetic circuit component 21-annular magnet

22-washer 30-sounding component 31-voice coil

32-vibrating diaphragm 40-PCB 50-tuning net

60-protective cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-5 are exemplary and intended to be used to explain embodiments of the present invention, but should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 5, a speaker is provided, which includes a main housing 10, a magnetic circuit component 20 and a sound generating component 30; a first end surface 11 is arranged on the outer side of the main shell 10, the middle part of the first end surface 11 of the main shell 10 is inwards sunken to form a convex part 12, the magnetic circuit assembly 20 is arranged around the convex part 12, and a clearance gap is arranged between the magnetic circuit assembly 20 and the convex part 12; the sounding assembly 30 includes a voice coil 31, and the voice coil 31 is disposed in the clearance.

In the embodiment of the present invention, the middle portion of the first end surface 11 of the main housing 10 is inwardly recessed to form the protruding portion 12, correspondingly, one side of the protruding portion 12 in the outward direction is a hollow structure, compared with the conventional speaker, in this embodiment, the protruding portion 12 formed by the recess replaces the main magnet of the conventional speaker, the magnetic circuit assembly 20 is disposed around the protruding portion 12, the magnetic circuit assembly 20 can generate a magnetic field, so that the gap formed between the magnetic circuit assembly 20 and the protruding portion 12 has a magnetic field, the voice coil 31 is disposed in the gap, when the voice coil 31 receives a signal voltage, the voice coil 31 cuts the magnetic force line and generates an acting force, thereby driving the diaphragm 32 in the sounding assembly 30 to sound, the main magnet used by the conventional speaker is omitted, the internal structure composition of the speaker is simplified, and the cost is reduced, the size is reduced, and the internal space utilization rate of the loudspeaker is further improved.

Specifically, a sound hole is formed in the middle of the boss 12 to allow air flow and sound transmission.

In another embodiment of the present invention, as shown in fig. 4 to 5, an edge of the first end surface 11 of the main shell 10 of the speaker extends to form a shell outer ring 13, a receiving cavity is formed between the shell outer ring 13 and the first end surface 11 of the main shell 10, the protruding portion 12 is disposed in the receiving cavity, and a receiving space for receiving the magnetic circuit assembly 20 is disposed between a side surface of the protruding portion 12 and the shell outer ring 13; the side of casing outer lane 13 sets up with the first terminal surface 11 of main shell 10 is perpendicular, casing outer lane 13 and the integrated into one piece of main shell 10, and casing outer lane 13 is equipped with the arc angle with the first terminal surface 11 edge junction of main shell 10, improves the connection stability between casing outer lane 13 and the main shell 10.

In another embodiment of the present invention, as shown in fig. 1 to 3, the magnetic circuit assembly 20 of the speaker includes a ring magnet 21; the annular magnet 21 is sleeved on the periphery of the boss 12; the bulge part 12 is arranged in a cylindrical structure, and a clearance gap with uniform magnetic field is formed between the side surface of the bulge part 12 and the inner ring of the annular magnet 21; the sound generating unit further comprises a diaphragm 32, the diaphragm 32 is connected with a voice coil 31, the diaphragm 32 is arranged on one side of the boss 12 and one side of the ring magnet 21, and the voice coil 31 is arranged in the clearance.

In another embodiment of the present invention, as shown in fig. 1 to 3, the magnetic circuit assembly 20 of the speaker further includes a washer 22 for magnetic conduction; the washer 22 is disposed on the ring magnet 21, so that the ring magnet 21 provides a uniform magnetic field required by the movement of the voice coil 31, thereby improving the sensitivity, reducing the distortion, and improving the sound production effect of the speaker.

In another embodiment of the present invention, as shown in fig. 1, 4 and 5, the outer casing 13 of the speaker is provided with a notch 14 for the lead to pass through, and the lead connected to the voice coil 31 extends out of the main casing 10 through the notch 14 for providing the voice coil 31 with an electrical signal.

In another embodiment of the present invention, as shown in fig. 4 to 5, the middle of the first end surface 11 of the main shell 10 of the speaker is arched outward to form a boss 15, and the middle of the boss 15 is recessed inward to form a protrusion 12; the boss 15 is disposed on the first end surface 11 of the main casing 10, so that the structural strength of the first end surface 11 of the main casing 10 is improved, the overall strength of the main casing 10 is improved, and the structural stability of the main casing 10 is improved.

In another embodiment of the present invention, as shown in fig. 1 to 3, the speaker further includes a PCB 40; the PCB 40 is fixed on the first end surface 11 of the main housing 10, and the PCB 40 is sleeved on the outer circumference of the boss 15, and the PCB 40 and the voice coil 31 are electrically connected through a wire, so as to transmit an electrical signal to the voice coil 31.

In another embodiment of the present invention, as shown in fig. 1 to 3, the speaker further includes a tuning net 50; the tuning net 50 is electrically connected with the PCB 40, and the tuning net 50 is arranged on the boss 15; the PCB 40 is arranged in an annular structure, the tuning net 50 is arranged in the inner ring of the PCB 40, the space utilization rate of the loudspeaker is improved, and the size of the loudspeaker is further reduced.

In another embodiment of the present invention, as shown in fig. 4, the main housing 10 of the speaker is provided with a clearance groove 16, and the clearance groove 16 is disposed around the periphery of the boss 12 to increase the movable space of the voice coil 31; the clearance groove 16 extends in a direction away from the voice coil 31.

In another embodiment of the present invention, as shown in fig. 1 to 3, the speaker further includes a protective cover 60; the protecting cover 60 is connected with the housing outer ring 13 so that the accommodating cavity forms a closed space; the connected mode of accessible joint is fixed between protecting cover 60 and the casing outer lane 13, and the edge of protecting cover 60 is equipped with the buckle, is equipped with the draw-in groove with buckle looks adaptation on the casing outer lane 13, with the buckle joint to the draw-in groove to on protecting cover 60 fixed connection to main casing 10.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A loudspeaker, characterized by: comprises a main shell, a magnetic circuit component and a sounding component; a first end face is arranged on the outer side of the main shell, the middle of the first end face of the main shell is inwards sunken to form a protruding portion, the magnetic circuit assembly is arranged around the protruding portion, and a clearance gap is arranged between the magnetic circuit assembly and the protruding portion; the sound production assembly comprises a voice coil, and the voice coil is arranged in the clearance.

2. The loudspeaker of claim 1, wherein: the edge of the first end face of the main shell extends to form a shell outer ring, an accommodating cavity is formed between the shell outer ring and the first end face of the main shell, the protruding portion is arranged in the accommodating cavity, and an accommodating space for accommodating the magnetic circuit assembly is arranged between the side face of the protruding portion and the shell outer ring.

3. The loudspeaker of claim 2, wherein: the magnetic circuit assembly comprises a ring magnet; the annular magnet is sleeved on the periphery of the bulge part; the convex part is arranged in a cylindrical structure, and the clearance gap with uniform magnetic field is formed between the side surface of the convex part and the inner ring of the annular magnet.

4. A loudspeaker according to claim 3, wherein: the magnetic circuit component also comprises a washer for magnetic conduction; the washer is arranged on the annular magnet.

5. The loudspeaker of claim 2, wherein: and a notch for a lead to pass through is formed in the outer ring of the shell.

6. A loudspeaker according to any one of claims 1 to 5, wherein: the middle part of the first end face of the main shell is arched outwards to form a boss, and the middle part of the boss is sunken inwards to form the protruding part.

7. The loudspeaker of claim 6, wherein: the speaker further comprises a PCB board; the PCB is fixed on the first end face of the main shell, and the PCB is sleeved on the periphery of the boss.

8. The loudspeaker of claim 7, wherein: the loudspeaker also comprises a tuning net; the tuning net is electrically connected with the PCB, and the tuning net is arranged on the boss.

9. The loudspeaker of claim 6, wherein: the main shell is provided with a clearance groove, and the clearance groove surrounds the periphery of the protruding portion to increase the movable space of the voice coil.

10. A loudspeaker according to any one of claims 2 to 5, wherein: the loudspeaker further comprises a protective cover; the protecting cover is connected with the outer ring of the shell so that the accommodating cavity forms a closed space.