CN218006510U

CN218006510U - Broadcasting loudspeaker

Info

Publication number: CN218006510U
Application number: CN202220459939.4U
Authority: CN
Inventors: 刘复钦
Original assignee: Dongguan Shengqun Electroacoustic Tech Co ltd
Current assignee: Dongguan Shengqun Electroacoustic Tech Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-12-09
Anticipated expiration: 2032-03-04

Abstract

The utility model relates to a speaker technical field, concretely relates to high-speed toll station is with reporting loudspeaker. The broadcasting loudspeaker for the high-speed toll station comprises a basin frame, a voice coil, T iron, a neodymium iron boron magnet, a washer sheet, a diaphragm, a dust cover and a PCB (printed circuit board) fiberboard; the middle part of the basin frame is provided with a positioning groove, and the middle part of the positioning groove is provided with a through hole; the voice coil is arranged in the through hole; the T iron comprises a core cap and a core column, the core cap is arranged below the basin frame, and the core column extends into the voice coil; the neodymium iron boron magnet is annular and is sleeved outside the core column, the top of the neodymium iron boron magnet is fixedly connected with the basin frame, and the bottom of the neodymium iron boron magnet is fixedly connected with the core cap; the washer sheet is annular, is sleeved outside the voice coil and is arranged in the positioning groove; the diaphragm is arranged above the washer sheet and is arranged at the top of the basin frame, an opening is formed in the middle of the diaphragm, and the voice coil extends out of the opening and is fixedly bonded with the diaphragm; the dustproof cover is arranged above the voice coil and is bonded with the diaphragm; the PCB fiberboard is fixedly connected on the basin frame. The utility model provides a current full loudspeaker all frequency put noise outward big, easily make the problem that the report audio frequency is vague.

Description

Broadcasting loudspeaker

Technical Field

The utility model relates to a speaker technical field, concretely relates to report loudspeaker.

Background

A speaker is a transducer that converts an electrical signal into an acoustic signal, and is often used in audio equipment. When the loudspeaker works, the voice coil vibrates the cone or the diaphragm through electromagnetic, piezoelectric or electrostatic effect and produces resonance (resonance) with the surrounding air to make sound.

The existing full-frequency loudspeaker has large amplification noise, easily causes broadcast audio to be vague, mostly adopts the volume of reducing the neodymium iron boron magnet, arranges the neodymium iron boron magnet in the basin frame to achieve the effect of reducing the volume of the loudspeaker, and the design leads to low sensitivity of the loudspeaker.

Therefore, it is necessary to provide a technical solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a report loudspeaker aims at solving current full frequency loudspeaker and enlargies the noise outward, easily makes the report audio frequency obscure, and adopts the volume that reduces neodymium iron boron magnet more often to arrange the design in the basin frame with neodymium iron boron magnet in order to reach the effect that reduces the loudspeaker volume, and this design leads to the problem that loudspeaker sensitivity is low.

In order to achieve the above object, the utility model provides a report loudspeaker, including basin frame, voice coil loudspeaker voice coil, T iron, neodymium iron boron magnet, china department piece, diaphragm, shield and PCB fibreboard, wherein:

a positioning groove formed by sinking is formed in the middle of the basin frame, and a through hole is formed in the middle of the positioning groove; the voice coil is arranged in the through hole; the T iron comprises a core cap and a core column which are integrally formed, the core cap is arranged below the basin frame, and the core column extends into the voice coil; the neodymium iron boron magnet is annular, is sleeved outside the core column, and is fixedly connected with the basin frame at the top and fixedly connected with the core cap at the bottom; the washer piece is annular, is sleeved outside the voice coil and is arranged in the positioning groove; the diaphragm is arranged above the washer sheet and is arranged at the top of the basin frame, an opening is formed in the middle of the diaphragm, and the voice coil extends out of the opening and is fixedly bonded with the diaphragm; the dustproof cover is arranged above the voice coil and is fixedly bonded with the diaphragm; the PCB fiberboard is fixedly connected to the basin frame.

More specifically, the diaphragm is made of polyetherimide material.

More specifically, the periphery of the diaphragm is provided with a plurality of corrugated rings.

More specifically, the diaphragm with the basin frame the shield with it is fixed to bond through silica gel glue between the voice coil loudspeaker voice coil.

More specifically, the shield includes the arc portion that the arch formed upwards and locates the bonding limit of arc portion periphery.

More specifically, the dust cover is made of waterproof materials, and the thickness of the dust cover is larger than that of the diaphragm.

More specifically, the washer sheet comprises an adhesive sheet and a dome disc; the bonding sheet is integrally formed with the periphery of the arch top disc and is fixedly bonded with the basin frame; the top of the arch top disk is corrugated, and the inner side of the arch top disk is contacted with the voice coil.

More specifically, the top of basin frame is equipped with the mounting panel that outwards extends the formation, a plurality of mounting holes have been seted up on the mounting panel.

More specifically, the basin frame is provided with a socket, the PCB fiberboard is provided with an inserting block corresponding to the socket, and the inserting block is inserted into the socket.

The utility model relates to a report loudspeaker's technological effect does:

1. this application adopts neodymium iron boron magnet to replace the used ferrite material of conventional loudspeaker, and neodymium iron boron magnet adopts external design to install in the outside of basin frame, so, has promoted the magnetic flux numerical value greatly, and then has improved the sensitivity of loudspeaker, and the noise ratio that externally puts simultaneously is weakened relatively, has improved the definition of broadcasting the audio frequency.

2. The diaphragm adopts the polyetherimide material to make in this application, and the shield adopts waterproof material to make, just the diaphragm with the basin frame the shield with it is fixed to bond through silica gel glue between the voice coil loudspeaker voice coil, and then makes this high-speed toll station have excellent waterproof dustproof performance with reporting loudspeaker, improves its life.

Drawings

Fig. 1 is a schematic structural view of a broadcast speaker according to the present invention;

fig. 2 is a schematic structural view of another viewing angle of the broadcast speaker according to the present invention;

fig. 3 is an exploded structural view of a broadcast speaker according to the present invention;

fig. 4 is a schematic structural view of a frame in a broadcast speaker according to the present invention;

figure 5 is the utility model relates to a report structure schematic diagram of china department piece in loudspeaker.

The labels in the figure are:

1, a basin stand; 101-positioning groove; 102-a through hole; 103-mounting plate; 104-mounting holes; 105-a socket; 2-voice coil; 3-T iron; 301 — core cap; 302-core column; 4-neodymium iron boron magnet; 5-washer slice; 501, bonding sheets; 502-dome plate; 6, a membrane; 601. -a corrugated ring; 7, a dust cover; 701-an arc part; 702 — a bonding edge; 8-PCB fiberboard; 801-inserting blocks;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" 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.

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 present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present invention, it should be understood that the orientations and positional relationships indicated by the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the embodiments of the present invention and for simplicity in description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In order to more clearly illustrate the technical solution of the present invention, a preferred embodiment is provided below. With particular reference to fig. 1-5. The utility model provides a report loudspeaker, includes basin frame 1, voice coil loudspeaker voice coil 2, T iron 3, neodymium iron boron magnet 4, china department piece 5, diaphragm 6, shield 7 and PCB fibreboard 8, wherein:

a positioning groove 101 formed by sinking is arranged in the middle of the basin frame 1, and a through hole 102 is formed in the middle of the positioning groove 101; the voice coil 2 is arranged in the through hole 102; the T iron 3 comprises a core cap 301 and a core column 302 which are integrally formed, the core cap 301 is arranged below the basin frame 1, and the core column 302 extends into the voice coil 2; the neodymium iron boron magnet 4 is annular and is sleeved outside the core column 302, the top of the neodymium iron boron magnet is fixedly connected with the basin stand 1, and the bottom of the neodymium iron boron magnet is fixedly connected with the core cap 301; the washer piece 5 is annular, is sleeved outside the voice coil 2 and is arranged in the positioning groove 101; the diaphragm 6 is arranged above the washer 5 and is arranged at the top of the basin frame 1, an opening is formed in the middle of the diaphragm 6, and the voice coil 2 extends out of the opening and is fixedly bonded with the diaphragm 6; the dustproof cover 7 is arranged above the voice coil 2 and is fixedly bonded with the diaphragm 6; the PCB fiberboard 8 is fixedly connected on the basin frame 1.

In this embodiment, adopt neodymium iron boron magnet 4 to replace the used ferrite material of conventional loudspeaker, and neodymium iron boron magnet 4 adopts external design to install in the outside of basin frame 1, so, promoted the magnetic flux numerical value greatly, and then improved the sensitivity of loudspeaker, the noise ratio that externally puts simultaneously is weakened relatively, has improved the definition of reporting the audio frequency. Specifically, the sensitivity of high-speed toll station with broadcasting loudspeaker reaches 120dB under this design, and its broadcast audio frequency can guarantee the definition in 30 m.

Further, in this embodiment, adopt T iron 3 with neodymium iron boron magnet 4 cooperation is realizing under the external prerequisite of neodymium iron boron magnet 4, the volume of this report loudspeaker is dwindled to the at utmost.

As a preferable solution of this embodiment, the periphery of the diaphragm 6 is provided with a plurality of corrugated rings 601 concentrically arranged. The design of the corrugated ring 601 not only improves the rigidity of the diaphragm, but also widens the area of the diaphragm and improves the low-frequency effect of the loudspeaker.

As a preferable scheme of this embodiment, the diaphragm 6 is made of a polyetherimide material. Further, the diaphragm 6 with the basin frame 1 the shield 7 with it is fixed to bond through silica gel glue between the voice coil loudspeaker voice coil 2. Furthermore, the dust cover 7 is made of waterproof material, and the thickness of the dust cover is larger than that of the diaphragm 6. Above-mentioned design makes this high-speed toll station have excellent waterproof dustproof performance with reporting loudspeaker, improves its life.

As a preferable mode of the present embodiment, the dust cover 7 includes an arc portion 701 formed to protrude upward, and an adhesive edge 702 provided on an outer periphery of the arc portion 701. The design of arc portion 701 can form stronger suppression to loudspeaker unit's segmentation vibration, also can filter some excessive high frequency signal simultaneously, makes the audio frequency that this report loudspeaker produced more gentle and agreeable income ear.

As a preferable scheme of this embodiment, the wafer sheet comprises an adhesive sheet 501 and a dome disc 502; the bonding sheet 501 is integrally formed with the periphery of the arched top plate 502 and is bonded and fixed with the basin stand 1; the dome plate 502 has a corrugated top, and the inner side thereof is in contact with the voice coil 2. The washer 5 is used for keeping the vibration system to reciprocate only along the axial direction when the voice coil 2 is stressed, and simultaneously preventing dust from entering the magnetic gap.

As a preferable scheme of this embodiment, the top of the basin stand 1 is provided with an installation plate 103 formed by extending outward, and the installation plate 103 is provided with a plurality of installation holes 104. The broadcasting loudspeaker for the high-speed toll station can be mounted on corresponding equipment through the matching of the bolt and the mounting hole 104.

As a preferable scheme of this embodiment, the basin frame 1 is provided with a socket 105, the PCB fiber board 8 is provided with an insertion block 801 corresponding to the socket 105, and the insertion block 801 is inserted into the socket 105. The mating of the insert 801 with the socket 105 improves the mounting stability of the PCB fiberboard 8.

The utility model relates to a report loudspeaker through reasonable structure setting, has solved current full loudspeaker all-frequency and has enlargied the noise greatly outward, easily makes the report audio frequency obscure, and adopts the volume that reduces neodymium iron boron magnet more to arrange the design in the basin frame with neodymium iron boron magnet in order to reach the effect that reduces the loudspeaker volume, and this design leads to the problem that loudspeaker sensitivity is low.

The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a report loudspeaker, its characterized in that: including basin frame, voice coil loudspeaker voice coil, T iron, neodymium iron boron magnet, china department piece, diaphragm, shield and PCB fibreboard, wherein:

a positioning groove formed by sinking is formed in the middle of the basin frame, and a through hole is formed in the middle of the positioning groove; the voice coil is arranged in the through hole; the T iron comprises a core cap and a core column which are integrally formed, the core cap is arranged below the basin frame, and the core column extends into the voice coil; the neodymium iron boron magnet is annular, is sleeved outside the core column, and is fixedly connected with the basin frame at the top and fixedly connected with the core cap at the bottom; the washer sheet is annular, is sleeved outside the voice coil and is arranged in the positioning groove; the diaphragm is arranged above the washer sheet and is arranged at the top of the basin frame, an opening is formed in the middle of the diaphragm, and the voice coil extends out of the opening and is fixedly bonded with the diaphragm; the dustproof cover is arranged above the voice coil and is fixedly bonded with the diaphragm; the PCB fiberboard is fixedly connected to the basin frame.

2. The broadcast horn of claim 1, wherein: the diaphragm is made of polyetherimide material.

3. The broadcast horn of claim 1, wherein: the periphery of the diaphragm is provided with a plurality of corrugated rings.

4. The broadcasting horn of claim 1, wherein: the diaphragm with the basin frame the shield with it is fixed to bond through silica gel glue between the voice coil loudspeaker voice coil.

5. The broadcasting horn of claim 1, wherein: the dust cover comprises an arc-shaped part formed by upward bulges and a bonding edge arranged on the periphery of the arc-shaped part.

6. The broadcast horn of claim 5, wherein: the dust cover is made of waterproof materials, and the thickness of the dust cover is larger than that of the diaphragm.

7. The broadcasting horn of claim 1, wherein: the washer sheet comprises an adhesive sheet and a dome disc; the bonding sheet is integrally formed with the periphery of the arch top disc and is fixedly bonded with the basin frame; the top of the arch top disk is corrugated, and the inner side of the arch top disk is contacted with the voice coil.

8. The broadcast horn of claim 1, wherein: the top of basin frame is equipped with the mounting panel that outwards extends the formation, a plurality of mounting holes have been seted up on the mounting panel.

9. The broadcast horn of claim 1, wherein: the basin frame is provided with a socket, the PCB fiberboard is provided with an inserting block corresponding to the socket, and the inserting block is inserted into the socket.