CN213938308U

CN213938308U - Loudspeaker suitable for ultrathin sound cavity and U-shaped iron adopted by loudspeaker

Info

Publication number: CN213938308U
Application number: CN202022715231.4U
Authority: CN
Inventors: 许文标; 莫焕秋; 曾桂芳; 马鲁建; 蔡林峰
Original assignee: Guangxi Hezhou Tianlai Electronic Technology Co ltd
Current assignee: Guangxi Hezhou Tianlai Electronic Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-10
Anticipated expiration: 2030-11-20

Abstract

The utility model relates to the technical field of sound generating devices, in particular to a loudspeaker suitable for an ultrathin sound cavity and a U-shaped iron adopted by the loudspeaker, wherein the loudspeaker comprises a sound cavity rear shell, a bracket, a sound cavity front shell and the U-shaped iron; the U-shaped iron comprises a base, a plurality of first exhaust holes are formed in the periphery of the base, a side wall is formed in the periphery of the base, the base and the side wall surround to form an accommodating space, a plurality of second exhaust holes are formed in the side wall and communicated with the first exhaust holes, the sound cavity front shell is connected with the sound cavity rear shell, and a placing space is formed inside the sound cavity front shell and the sound cavity rear shell after connection; the support is in a hollow shape, the support is sleeved on the periphery of the U-shaped iron, a plurality of openings are formed in the periphery of the bottom of the support, the plurality of second exhaust holes correspond to the plurality of openings one to one, and the support is arranged in the placing space. The utility model discloses novel structure makes speaker bottom exhaust smooth and easy, has optimized the acoustics characteristic of speaker.

Description

Loudspeaker suitable for ultrathin sound cavity and U-shaped iron adopted by loudspeaker

Technical Field

The utility model belongs to the technical field of the sound generating mechanism technique and specifically relates to indicate a speaker that is adapted to ultra-thin sound chamber and the U iron that adopts thereof.

Background

The sound production principle of a moving-coil loudspeaker is that a variable current passes through a coil to generate a variable magnetic field, and the magnetic field acts on a diaphragm of the loudspeaker to vibrate the diaphragm so as to produce sound. At present, for the loudspeaker using the ultrathin sound cavity, the U iron part of the loudspeaker is often close to or attached to the rear shell of the sound cavity, so that the airflow at the rear part of the loudspeaker is difficult to balance, and the THD peak value is often formed at the middle frequency band, thereby causing adverse effects on acoustic characteristics.

SUMMERY OF THE UTILITY MODEL

The utility model discloses problem to prior art provides a speaker that is adapted to ultra-thin sound chamber and the U iron that adopts, makes the speaker rear portion exhaust smoothly, has improved the problem of intermediate frequency THD peak value, has optimized the acoustics characteristic in speaker and sound chamber.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a U iron in speaker that is adapted to ultra-thin sound chamber, includes the base, the base is provided with a plurality of first exhaust holes all around, the base periphery is provided with the lateral wall, and base and lateral wall surround and form an accommodating space, the lateral wall is provided with a plurality of second exhaust holes, a plurality of second exhaust holes with a plurality of first exhaust holes are linked together.

The plurality of first exhaust holes and the plurality of second exhaust holes are all long-strip-shaped.

Wherein, the base is rectangular.

Wherein, the edge of base is provided with a plurality of side pieces in the protrusion.

A loudspeaker suitable for an ultrathin sound cavity comprises a sound cavity rear shell, a support, a sound cavity front shell and the U-shaped iron; the sound cavity front shell is connected with the sound cavity rear shell, and a placing space is formed inside the sound cavity front shell and the sound cavity rear shell after the sound cavity front shell and the sound cavity rear shell are connected; the support is in a hollow shape, the support is sleeved on the periphery of the U-shaped iron, a plurality of openings are formed in the periphery of the bottom of the support, the plurality of second exhaust holes correspond to the plurality of openings one to one, and the support is arranged in the placing space.

The loudspeaker suitable for the ultrathin sound cavity further comprises a magnet, a washer, a voice coil and a diaphragm, wherein the magnet and the washer are sequentially stacked in the accommodating space of the U iron, a circle of gap is formed between the side wall of the U iron and the magnet and the washer, the top of the voice coil is connected with the diaphragm in a gluing mode, the diaphragm is arranged on the support, and the bottom of the voice coil extends into the gap.

The voice coil is characterized in that a groove is formed in the inner periphery of the top of the support, a limiting hole is formed in one end of the top of the support, the groove is communicated with the limiting hole, the voice coil comprises a coil body and a lead, the outer side of the coil body is connected with the lead, the lead is arranged on the groove, and the lead penetrates through the limiting hole.

The sound cavity rear shell is internally provided with a plurality of positioning columns, the sound cavity front shell is internally provided with a plurality of positioning holes, the positioning columns correspond to the positioning holes one to one, and the positioning columns are inserted into the positioning holes.

The sound cavity front shell is provided with a clamping groove, and the support is embedded into the clamping groove.

The utility model has the advantages that: the utility model discloses novel structure, design benefit, U iron are provided with first exhaust hole except that the bottom, also are provided with a plurality of second exhaust holes at the lateral wall, and the structural design of this speaker avoids speaker and sound chamber backshell too closely and pastes and causes the problem that the speaker rear portion was discharged and is not smooth and easy behind the sound chamber backshell to improve the problem at middle frequency channel THD peak value, optimized the acoustics characteristic in speaker and sound chamber.

Drawings

Fig. 1 is a cross-sectional view of a speaker adapted to an ultra-thin sound cavity according to the present invention.

Fig. 2 is a schematic structural diagram of the U-iron of the present invention.

Fig. 3 is a side view of the bracket of the present invention.

Fig. 4 is a schematic structural diagram of the support and the voice coil of the present invention.

The reference numerals are respectively: 1. the voice coil loudspeaker comprises a base, 2, a first exhaust hole, 3, a side wall, 4, a second exhaust hole, 5, a side block, 6, a voice cavity rear shell, 7, a magnet, 8, washer, 9, a support, 10, a voice coil, 11, a diaphragm, 12, a voice cavity front shell, 13, U iron, 14, an opening, 15, a groove, 16, a limiting hole, 17, a ring body, 18, a lead, 19, a positioning column, 20, a positioning hole, 21 and a clamping groove.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a U iron in speaker that is adapted to ultra-thin sound chamber, shows as figure 2, includes base 1, base 1 is provided with a plurality of first exhaust holes 2 all around, base 1 periphery is provided with lateral wall 3, and base 1 and lateral wall 3 surround and form an accommodating space, lateral wall 3 is provided with a plurality of second exhaust holes 4, a plurality of first exhaust holes 2 are linked together with a plurality of second exhaust holes 4. Specifically, the utility model discloses novel structure, design benefit, U iron are provided with first exhaust hole 2 outside base 1, also are provided with a plurality of second exhaust holes 4 at lateral wall 3, make the speaker that adopts this U iron can be simultaneously toward the bottom and the side exhaust of U iron, avoid speaker and sound chamber backshell too closely and paste and cause the problem that the speaker rear portion was discharged smoothly behind the sound chamber backshell to improve the problem at middle frequency THD peak value, optimized the acoustics characteristic in speaker and sound chamber.

In the U-iron used in the ultra-thin sound cavity speaker in this embodiment, the first exhaust holes 2 and the second exhaust holes 4 are both long strips. In particular, the arrangement is stable and novel.

In the U-iron in the speaker with the ultra-thin sound cavity, the base 1 is rectangular. In particular, the arrangement is stable and novel.

In the U-iron in the speaker with the ultra-thin sound cavity, a plurality of side blocks 5 are convexly arranged at the corners of the base 1. Specifically, a plurality of limiting grooves can be arranged outside, and the side blocks 5 are inserted into the limiting grooves, so that the U iron is limited, and the installation stability of the U iron is ensured.

The loudspeaker adapted to the ultra-thin sound cavity in the present example, as shown in fig. 1-4, includes a sound cavity back shell 6, a bracket 9, a sound cavity front shell 12, and the U-shaped iron 13; the sound cavity rear shell 6 is connected with the sound cavity front shell 12, and a placing space is formed; the support 9 is fretwork form, the support 9 cup joints U iron 13 periphery, be provided with a plurality of openings 14 around the support 9 bottom, a plurality of second exhaust holes 4 with a plurality of openings 14 one-to-one, the support 9 is installed and is being placed in the space. Specifically, the utility model discloses a second exhaust hole 4 and the structural design of opening 14 make the speaker can exhaust through the side, avoid speaker and sound chamber backshell 6 too closely and paste and cause the problem that the speaker rear portion was exhausted not smoothly behind the sound chamber backshell 6 to improve the problem at middle frequency channel THD peak value, optimized the acoustics characteristic in speaker and sound chamber.

This example a speaker that is adapted to ultra-thin sound chamber still include magnet 7, china department 8, voice coil loudspeaker voice coil 10 and diaphragm 11, form the round clearance between U iron 13 lateral wall 3 and magnet 7 and the china department 8, the top and the diaphragm 11 veneer of voice coil loudspeaker voice coil 10 are connected, diaphragm 11 is arranged in on the support 9, and the bottom of voice coil loudspeaker voice coil 10 stretches into in the clearance. Specifically, U iron 13, magnet 7 and china department 8 do the utility model discloses a drive structure, the during operation can form magnetic field drive voice coil loudspeaker voice coil 10, and the diaphragm 11 of being connected with voice coil loudspeaker voice coil 10 will vibrate in the lump to produce the sound wave.

This example the loudspeaker that is adapted to ultra-thin sound chamber, the interior week at support 9 top is provided with recess 15, the one end at support 9 top is provided with spacing hole 16, and recess 15 is linked together with spacing hole 16, voice coil 10 includes circle body 17 and lead wire 18, the circle body 17 outside with lead wire 18 is connected, lead wire 18 is arranged in on the recess 15, just lead wire 18 passes spacing hole 16. Specifically, a placement platform is formed by the groove 15, the placement position of the lead wire 18 in the speaker is fixed, and the lead wire 18 passes through the limiting hole 16, so that the voice coil 10 is electrically connected with an external audio input device.

This example a speaker that is adapted to ultra-thin sound chamber, its characterized in that: a plurality of positioning columns 19 are arranged in the sound cavity rear shell 6, a plurality of positioning holes 20 are arranged in the sound cavity front shell 12, the positioning columns 19 correspond to the positioning holes 20 one by one, and the positioning columns 19 are inserted into the positioning holes 20. Specifically, the aforesaid sets up and has guaranteed the utility model discloses holistic structure is difficult for changing to the audio that makes the speaker is stable.

This example a speaker that is adapted to ultra-thin sound chamber, its characterized in that: the sound cavity front shell 12 is provided with a clamping groove 21, and the support 9 is embedded in the clamping groove 21. Specifically, the engaging groove 21 limits the position of the bracket 9, so that the position of the bracket 9 in the placement space is fixed.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a U iron in speaker that is adapted to ultra-thin sound chamber which characterized in that: the base is provided with a plurality of first exhaust holes all around, the base periphery is provided with the lateral wall, and the base surrounds with the lateral wall and forms an accommodating space, the lateral wall is provided with a plurality of second exhaust holes, a plurality of second exhaust holes with a plurality of first exhaust holes are linked together.

2. The U-iron in a speaker adapted to an ultra-thin sound cavity of claim 1, wherein: the plurality of first exhaust holes and the plurality of second exhaust holes are all long strips.

3. The U-iron in a speaker adapted to an ultra-thin sound cavity of claim 1, wherein: the base is rectangular.

4. The U-iron in the loudspeaker adapted to the ultrathin sound cavity in the claim 1 or 3 is characterized in that: the base is provided with a plurality of side blocks at the corners in a protruding mode.

5. The utility model provides a speaker that is adapted to ultra-thin sound chamber which characterized in that: comprises a sound cavity back shell, a bracket, a sound cavity front shell and the U-iron of any one of claims 1 to 4; the sound cavity front shell is connected with the sound cavity rear shell, and a placing space is formed inside the sound cavity front shell and the sound cavity rear shell after the sound cavity front shell and the sound cavity rear shell are connected; the support is in a hollow shape, the support is sleeved on the periphery of the U-shaped iron, a plurality of openings are formed in the periphery of the bottom of the support, the plurality of second exhaust holes correspond to the plurality of openings one to one, and the support is arranged in the placing space.

6. A loudspeaker adapted to an ultra-thin sound cavity according to claim 5, wherein: the loudspeaker further comprises a magnet, a washer, a voice coil and a diaphragm, wherein the magnet and the washer are sequentially stacked in the accommodating space of the U iron, a circle of gap is formed between the side wall of the U iron and the magnet and the washer, the top of the voice coil is connected with the diaphragm in a gluing mode, the diaphragm is arranged on the support, and the bottom of the voice coil extends into the gap.

7. The speaker in accordance with claim 6, wherein a groove is disposed on an inner circumference of the top of the support, a limit hole is disposed at one end of the top of the support, and the groove is communicated with the limit hole, the voice coil includes a coil body and a lead, an outer side of the coil body is connected to the lead, the lead is disposed on the groove, and the lead passes through the limit hole.

8. A loudspeaker adapted to an ultra-thin sound cavity according to claim 5, wherein: the sound cavity rear shell is internally provided with a plurality of positioning columns, the sound cavity front shell is internally provided with a plurality of positioning holes, the positioning columns correspond to the positioning holes one to one, and the positioning columns are inserted into the positioning holes.

9. A loudspeaker adapted to an ultra-thin sound cavity according to claim 5, wherein: the sound cavity front shell is provided with a clamping groove, and the support is embedded into the clamping groove.