CN219740606U

CN219740606U - Loudspeaker

Info

Publication number: CN219740606U
Application number: CN202321197265.6U
Authority: CN
Inventors: 曾锦木
Original assignee: Xiamen Senner Technology Co ltd
Current assignee: Xiamen Senner Technology Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-09-22
Anticipated expiration: 2033-05-17

Abstract

The utility model relates to the field of loudspeakers, and provides a loudspeaker, which comprises a shell, a diaphragm, a voice coil, a magnetic circuit unit and foam, wherein the shell comprises a base frame, an upper cover and a rear cover; the upper cover is provided with a pull edge, the top surface of the base frame is provided with a placing groove, the bottom edge of the placing groove is provided with a bulge for bearing the pull edge, and the middle part of the placing groove is provided with a through hole for installing the rear cover; the foam is arranged on the top surface of the upper cover and is positioned between the upper cover and the notch of the placing groove. The upper cover in the loudspeaker is optimized to form a structure with a pull edge so as to be adhered to the edge of the membrane in a fitting way to form an integrated structure so as to be assembled and installed subsequently. Further, the two sides of the base frame are open and structurally designed, so that the assembly can be completed by only adopting a mode of stacking and placing, the placing groove is bonded through foam, the purposes of sealing and shock absorption are achieved, the loudspeaker can be rapidly assembled and produced through mechanical equipment, and the production efficiency is improved.

Description

Loudspeaker

Technical Field

The utility model relates to the field of speakers, in particular to a speaker.

Background

The loudspeaker is a transducer for converting electric signals into acoustic signals, and the performance of the loudspeaker has great influence on sound quality. The loudspeaker is the weakest element in the sound equipment and is in turn the most important component for the sound effect. Speakers are of a wide variety and are widely priced. The audio electric energy makes its cone or diaphragm vibrate and resonate (resonate) with surrounding air to make sound by electromagnetic, piezoelectric or electrostatic effect. Therefore, a speaker is one of indispensable products in life.

Along with the development of technology, the types of speakers are increased, and the speakers can be divided into an electric type (namely a moving coil type), an electrostatic type (namely a capacitance type), an electromagnetic type (namely a reed type), a piezoelectric type (namely a crystal type) and the like according to the transduction principle, and the two types of speakers are used in rural wired broadcasting networks; the frequency range can be divided into a low-frequency speaker, a mid-frequency speaker, a high-frequency speaker, and a full-frequency speaker, and these are often used as a combination speaker in a sound box. Separating paper cone type, horn type and diaphragm type according to the acoustic radiation material; the shape of the cone is divided into a round shape, an elliptic shape, a double cone and a rubber folding ring; dividing low impedance and high impedance according to voice coil impedance; dividing the effect into straight radiation and environmental sound.

In the production process of the loudspeaker, a large amount of time is required to be assembled by manpower, so that when equipment is used for assembly, the structure of the loudspeaker is required to be optimally designed to meet the assembly requirement of the equipment, and meanwhile, the pre-assembly treatment can be formed through the structure, so that the assembly efficiency is improved. However, the existing loudspeaker has no corresponding special assembling equipment, and the manual assembling has lower working efficiency and higher cost.

Disclosure of Invention

The utility model aims to provide a loudspeaker, which aims to solve the problems that the existing loudspeaker is low in manual assembly efficiency and the existing structure is not suitable for equipment assembly.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the loudspeaker comprises a shell, a diaphragm, a voice coil, a magnetic circuit unit, foam and a rear cover, wherein the diaphragm is positioned in the shell, the voice coil is arranged in the middle of the diaphragm, the magnetic circuit unit is positioned between the diaphragm and the shell, the foam is of a closed-loop structure, and the shell comprises a base frame, an upper cover and a rear cover;

the upper cover edge is provided with a pull edge which is used for being adhered with the membrane in an extending mode, the top surface of the base frame is provided with a placing groove, the bottom edge of the placing groove is provided with a bulge which bears the pull edge, and the middle of the placing groove is provided with a through hole for installing the rear cover;

the foam is arranged on the top surface of the upper cover and is positioned between the upper cover and the notch of the placing groove.

Preferably, the through hole is provided with a step groove towards the back surface direction of the base frame, and the rear cover is arranged on the step groove.

Preferably, the magnetic circuit unit comprises a magnet, a washer, a vibration plate, a mass block and a U cup, wherein the magnet is arranged in a groove of the U cup, a voice coil is sleeved between the magnet and the inner side surface of the U cup in a clearance mode, and the washer is arranged on the top surface of the magnet;

the outer edge end of the vibration plate is arranged on the stepped groove, the mass block is sleeved on the outer side face of the U cup, and the inner edge end of the vibration plate is positioned between the mass block and the port of the U cup.

Preferably, the base frame is provided with an electrical contact electrically connected with the voice coil, and the bottom of the placement groove is provided with a wiring groove.

Preferably, a plurality of ventilation holes are formed in the base frame and the upper cover.

Preferably, the side wall of the placing groove is provided with opening teeth.

Preferably, a plurality of protruding blocks are arranged on the side edge of the step groove at equal intervals.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

1. the upper cover in the loudspeaker is optimized to form a structure with a pull edge so as to be adhered to the edge of the membrane in a fitting way to form an integrated structure so as to be assembled and installed subsequently. Further, the two sides of the base frame are open and structurally designed, so that the assembly can be completed by only adopting a mode of stacking and placing, the placing groove is bonded through foam, the purposes of sealing and shock absorption are achieved, the loudspeaker can be rapidly assembled and produced through mechanical equipment, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a speaker according to the present utility model;

fig. 2 is a cross-sectional view of a speaker according to the present utility model;

fig. 3 is an exploded view of a speaker according to the present utility model;

fig. 4 is a schematic view of a base frame of a speaker according to the present utility model at a first view angle;

fig. 5 is a schematic view of a base frame of a speaker according to the present utility model at a second view angle;

fig. 6 is a schematic structural diagram of an upper cover of a speaker according to the present utility model.

Reference numerals illustrate:

10. a housing; 101. a base frame; 102. an upper cover; 103. a rear cover;

1011. a placement groove; 1012. a protrusion; 1013. a through hole; 1014. a stepped groove;

1015. an electrical contact; 1016. wiring grooves; 1017. ventilation holes; 1018. an open tooth;

1019. a bump; 1021. edge pulling;

20. a membrane; 201. a voice coil;

30. a magnetic circuit unit;

301. a magnet; 302. washer; 303. a vibrating plate; 304. a mass block; 305. a U-shaped cup;

40. and soaking cotton.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, it should be noted that:

the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not denote or imply that the apparatus or elements of the present utility model must have a particular orientation, and thus should not be construed as limiting the utility model.

When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the utility model will be understood by those skilled in the art according to the specific circumstances.

Examples

Referring to fig. 1, 2, 3 and 4, the present embodiment provides a speaker, which includes a housing 10, a diaphragm 20 located in the housing 10, a voice coil 201 disposed in the middle of the diaphragm 20, a magnetic circuit unit 30 located between the diaphragm 20 and the housing 10, and foam 40 having a closed loop structure, wherein the housing 10 includes a base frame 101, an upper cover 102 disposed on the top surface of the base frame 101, and a rear cover 103 disposed on the rear surface of the base frame 101; the edge of the upper cover 102 is provided with a pull edge 1021 for adhering to the membrane 20 in an extending manner, the top surface of the base frame 101 is provided with a placing groove 1011, the bottom edge of the placing groove 1011 is provided with a protrusion 1012 for bearing the pull edge 1021, and the middle part of the placing groove 1011 is provided with a through hole 1013 for installing the rear cover 103; foam 40 is disposed on the top surface of upper cover 102 and between upper cover 102 and the notch of placement slot 1011.

Specifically, the vibration piece 303 is bonded to the edge of the upper cover 102 by adhesion, and an integral structure is formed. And one end of the voice coil 201 is stuck and fixed to the middle of the vibration plate 303, so that the magnetic induction line is cut in the magnetic circuit unit 30 to drive the vibration plate 303 to vibrate to form sound.

In assembly, the magnetic circuit unit 30, the bonded upper cover 102, the vibration plate 303, the voice coil 201, and the foam 40 may be sequentially mounted in the placement groove 1011, and the placement groove 1011 may have a protrusion 1012 for supporting the diaphragm 20, forming a limit mounting; then the placing groove 1011 is bonded through the foam 40, so as to realize the purposes of sealing and shock absorption; the magnetic circuit unit 30 can be installed in the direction of the through hole 1013, and then the rear cover 103 is installed, so that the purpose of rapid assembly of the loudspeaker is achieved, the loudspeaker can be rapidly assembled and produced through mechanical equipment, and the production efficiency is improved.

As shown in fig. 1 and 2, the foam 40 in this embodiment can have the effect of pressing the upper cover 102 of the speaker and the side surface of the base, so that the upper cover 102 is fixed on the base, and the installation and connection positions are sealed and dustproof, thereby improving the practicability.

In the present embodiment, the through hole 1013 is provided with a stepped groove 1014 toward the back surface of the base frame 101, and the rear cover 103 is provided on the stepped groove 1014. The stepped groove 1014 is designed to facilitate the installation of the rear cover 103 and the installation of the magnetic circuit unit 30, and to enhance the workability of assembly.

Specifically, as shown in fig. 2 and 3, in this embodiment, the magnetic circuit unit 30 includes a magnet 301, a washer 302, a vibration plate 303, a mass block 304 and a U cup 305, the magnet 301 is disposed in a groove of the U cup 305, the voice coil 201 is sleeved between the magnet 301 and an inner side surface of the U cup 305 in a gap, and the washer 302 is disposed on a top surface of the magnet 301; the outer edge of the vibration plate is arranged on the stepped groove 1014, then the rear cover 103 is propped against, adhered to or welded to complete fixation, the mass block 304 is sleeved on the outer side surface of the U cup 305, and the inner edge of the vibration plate is positioned between the mass block 304 and the port of the U cup 305, because the port of the U cup 305 is provided with a flange extending in the horizontal direction, and the vibration plate 303 is clamped and fixed by the flange and the mass block 304.

In use, the voice coil 201 is outside the magnet 301 and moves back and forth along the axial direction of the magnet 301, and drives the diaphragm to move. The U cup 305 and the magnet 301 in the U cup 305 are mounted at the inner ring end of the vibration plate 303, so that the vibration plate 303 can deform and reset in the axial direction, and the vibration plate is integrated to realize the vibration sounding effect on the diaphragm 20. And during assembly, the assembly action is simple, so that the equipment is assembled, and the practicability is improved.

As shown in fig. 3, in this embodiment, the base frame 101 is provided with a contact 1015 electrically connected to the voice coil 201, and the bottom of the placement groove 1011 is provided with a wiring groove 1016, and a power line may be disposed on the wiring groove 1016 to connect the voice coil 201 and the contact 1015. The electrical contact 1015 is designed to facilitate connection of the speaker to an external power source for providing electrical power to the voice coil 201.

As shown in fig. 4 and 6, in the present embodiment, the base frame 101 and the upper cover 102 are provided with a plurality of ventilation holes 1017, so that the air resistance of vibration of the diaphragm 20 can be reduced, and the practicability is improved.

As shown in fig. 4, in this embodiment, the side wall of the placement slot 1011 is provided with an opening tooth 1018, the opening tooth 1018 has a single tooth structure, when the upper cover 102 needs to be removed, the opening tooth 1018 can be bent outwards, so that a notch is formed on the side surface of the substrate, and then the upper cover 102 is pried open, so that the removal of the speaker is completed, and the practicability is improved.

As shown in fig. 5, a plurality of bumps 1019 are provided on the side of the step groove 1014 at equal intervals in the present embodiment. When the rear cover 103 is installed, fixing and limiting can be performed, so that the rear cover 103 can be directly sleeved on the stepped groove 1014 of the through hole 1013, namely, the supporting force of the plurality of protruding blocks 1019 is utilized for limiting, and the installation convenience is improved.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. The loudspeaker comprises a shell, a diaphragm positioned in the shell, a voice coil arranged in the middle of the diaphragm, and a magnetic circuit unit positioned between the diaphragm and the shell, and is characterized by also comprising foam with a closed-loop structure, wherein the shell comprises a base frame, an upper cover arranged on the top surface of the base frame and a rear cover arranged on the back surface of the base frame;

2. A loudspeaker according to claim 1, wherein: the through hole is provided with a step groove towards the back direction of the base frame, and the rear cover is arranged on the step groove.

3. A loudspeaker according to claim 2, wherein: the magnetic circuit unit comprises a magnet, a washer, a vibration piece, a mass block and a U cup, wherein the magnet is arranged in a groove of the U cup, a voice coil gap is sleeved between the magnet and the inner side surface of the U cup, and the washer is arranged on the top surface of the magnet;

4. A loudspeaker according to claim 1, wherein: the base frame is provided with an electric contact electrically connected with the voice coil, and the bottom of the placing groove is provided with a wiring groove.

5. A loudspeaker according to claim 1, wherein: the base frame and the upper cover are provided with a plurality of ventilation holes.

6. A loudspeaker according to claim 1, wherein: the side wall of the placing groove is provided with opening teeth.

7. A loudspeaker according to claim 3, wherein: a plurality of convex blocks are arranged on the side edge of the stepped groove at equal intervals.