CN210807641U

CN210807641U - Single magnetic circuit double voice coil coaxial loudspeaker with compact structure

Info

Publication number: CN210807641U
Application number: CN201921777324.0U
Authority: CN
Inventors: 温增丰; 薛辉; 黄胜健
Original assignee: Transound Electronics Co Ltd
Current assignee: Transound Electronics Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-19
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a single magnetic circuit double voice coil coaxial loudspeaker with compact structure, which comprises a bracket, a U cup with T iron function, a ring magnet, a washer, a bass diaphragm, a bass voice coil, a protecting cover, a treble diaphragm and a treble voice coil; the U cup is arranged on the bracket; the annular magnet is arranged in the U-shaped cup, an inner annular accommodating groove is formed between the inner side wall of the annular magnet and the U-shaped cup, and an outer annular accommodating groove is formed between the outer side wall of the annular magnet and the U-shaped cup; the washer is arranged on the annular magnet; the bass diaphragm is arranged on the bracket and is positioned above the washer; the bass voice coil is arranged at the bottom of the bass diaphragm and extends into the outer annular accommodating groove. This product adopts an annular magnet and two diaphragms, and two diaphragms orientation are unanimous, form single magnetic circuit coaxial structure for this product overall structure is simple, and the volume reduces, and the production preparation is easier, and the cost is also lower.

Description

Single magnetic circuit double voice coil coaxial loudspeaker with compact structure

Technical Field

The utility model belongs to the technical field of the loudspeaker field and specifically relates to indicate a coaxial loudspeaker of two voice coil loudspeaker voice coils of single magnetic circuit of compact structure.

Background

The horn is also called a speaker. It is a very common electroacoustic transducer, and can be found in electronic and electric equipment for producing sound. The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

At present, a double-voice-coil loudspeaker is widely used by people in the market, has a high-pitch voice coil and a low-pitch voice coil, is very good in tone quality, and is favored by people. However, the existing dual-voice-coil type loudspeaker generally has the problems of complex structure, large volume, difficult production and manufacture and high cost. Therefore, there is a need for an improved dual voice coil speaker.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a single magnetic path dual voice coil coaxial speaker with compact structure, which can effectively solve the problems of complex structure, large volume, difficult production and manufacture, and high cost of the existing dual voice coil coaxial speaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a single magnetic circuit double voice coil coaxial loudspeaker with compact structure comprises a bracket, a U cup with T iron function, an annular magnet, a washer, a bass diaphragm, a bass voice coil, a protecting cover, a treble diaphragm and a treble voice coil; the U cup is arranged on the bracket; the annular magnet is arranged in the U-shaped cup, an inner annular accommodating groove is formed between the inner side wall of the annular magnet and the U-shaped cup, and an outer annular accommodating groove is formed between the outer side wall of the annular magnet and the U-shaped cup; the washer is arranged on the annular magnet; the bass diaphragm is arranged on the bracket and is positioned above the washer; the bass voice coil is arranged at the bottom of the bass diaphragm and extends into the outer annular accommodating groove; the protecting cover is arranged on the bracket and covers the bass diaphragm; the high pitch diaphragm is arranged on the protective cover; the high pitch voice coil is arranged at the bottom of the high pitch diaphragm and extends into the inner annular accommodating groove.

As a preferable scheme, the surface of the bracket is concavely provided with a mounting position, and the center of the inner bottom surface of the mounting position is provided with a mounting hole penetrating through the bottom of the bracket; the U-cup is fixed in the mounting hole, and the bass diaphragm is positioned in the mounting position.

As a preferable scheme, the periphery of the bottom surface of the mounting position is provided with a plurality of slotted holes, and the bottom of the bracket is provided with tuning paper which covers all the slotted holes.

As a preferable scheme, a circuit board is arranged at the bottom of the support, and the bass voice coil and the treble voice coil are both connected with the circuit board.

Preferably, the center of the protecting cover is recessed to form a mounting groove, and the periphery of the treble diaphragm is fixed with the periphery of the surface of the mounting groove.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

this product adopts an annular magnet and two diaphragms, and two diaphragms orientation are unanimous, form single magnetic circuit coaxial structure for this product overall structure is simple, and the volume reduces, and the production preparation is easier, and the cost is also lower.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the preferred embodiment of the present invention;

fig. 3 is a cross-sectional view of a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. support 11, mounting location

12. Mounting hole 13, slotted hole

20. U cup 21, annular groove

30. Annular magnet 31, inner annular accommodation groove

32. Outer annular receiving groove 40, washer

51. Bass diaphragm 52, bass voice coil

60. Protecting cover 61, mounting groove

71. High pitch diaphragm 72 and high pitch voice coil

81. Sound mixing paper 82 and a circuit board.

Detailed Description

Referring to fig. 1 to 3, the detailed structure of the preferred embodiment of the present invention is shown, which includes a support 10, a U-cup 20 with a T-iron function, a ring magnet 30, a washer 40, a bass diaphragm 51, a bass voice coil 52, a cover 60, a treble diaphragm 71 and a treble voice coil 72.

The surface of the bracket 10 is concavely provided with a mounting position 11, and the center of the inner bottom surface of the mounting position 11 is provided with a mounting hole 12 penetrating through the bottom of the bracket 10. And, a plurality of slotted holes 13 are opened on the periphery of the bottom surface of the mounting position 11, and the bottom of the bracket 10 is provided with a tuning paper 81, and the tuning paper 81 covers each slotted hole 13.

The U cup 20 is arranged on the bracket 10; in the present embodiment, the U cup 20 is fixed in the mounting hole 12, and the surface of the U cup 20 is formed with an annular groove 21.

The ring magnet 30 is disposed in the annular groove 21 of the U cup 20, an inner annular receiving groove 31 is formed between the inner side wall of the ring magnet 30 and the U cup 20, and an outer annular receiving groove 32 is formed between the outer side wall of the ring magnet 30 and the U cup 20.

The washer 40 is disposed on the ring magnet 30, and the washer 40 is matched with the ring magnet 30 and is ring-shaped.

The bass diaphragm 51 is disposed on the stand 10 above the washer 40, and the bass diaphragm 51 is located in the mounting place 11. The bass voice coil 52 is disposed at the bottom of the bass diaphragm 51 and extends into the outer annular accommodation groove 32.

The cover 60 is disposed on the stand 10 and covers the bass diaphragm 51; the high pitch diaphragm 71 is arranged on the protecting cover 60; the treble voice coil 72 is provided at the bottom of the treble diaphragm 71 and extends into the inner annular receiving groove 31. In this embodiment, the center of the cover 60 is recessed to form a mounting groove 61, and the periphery of the high-pitched diaphragm 71 is fixed to the periphery of the surface of the mounting groove 61.

And, the bottom of the support 10 is provided with a circuit board 82, and the bass voice coil 52 and the treble voice coil 72 are both connected to the circuit board 82.

Detailed description the assembly process of this embodiment is as follows:

firstly, fixing the U-cup 20 on the bracket 10, then, placing the annular magnet 30 in the annular groove 21 of the U-cup 20 for fixing, and then, superposing and fixing the washer 40 on the surface of the annular magnet 30; then, the bass voice coil 52 is bonded and fixed on the bottom of the bass diaphragm 51; then, the bass diaphragm 51 is placed in the mounting site 1 with the bass voice coil 52 extended into the outer annular accommodation groove 32; then, the high pitch voice coil 72 is adhered and fixed at the bottom of the high pitch diaphragm 71, the high pitch diaphragm 71 is fixed in the mounting groove 61 of the protecting cover 60, and then the protecting cover 60 is fixed on the bracket 10, and the high pitch voice coil 72 is made to extend into the inner annular accommodating groove 31; finally, the circuit board 82 is fixed at the bottom of the support 10, the bass voice coil 52 and the treble voice coil 72 are both connected with the circuit board 82, and the tuning paper 81 is attached and fixed at the bottom of the support 10 to cover the slots 13.

Through use tests, the low-frequency curve of the product is 110HZ, the high frequency can be extended to 40K, and the product performance is excellent.

The utility model discloses a design focus lies in: this product adopts an annular magnet and two diaphragms, and two diaphragms orientation are unanimous, form single magnetic circuit coaxial structure for this product overall structure is simple, and the volume reduces, and the production preparation is easier, and the cost is also lower.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a single magnetic circuit double voice coil loudspeaker coaxial of compact structure which characterized in that: the device comprises a bracket, a U cup with a T iron function, an annular magnet, a washer, a bass diaphragm, a bass voice coil, a protecting cover, a treble diaphragm and a treble voice coil; the U cup is arranged on the bracket; the annular magnet is arranged in the U-shaped cup, an inner annular accommodating groove is formed between the inner side wall of the annular magnet and the U-shaped cup, and an outer annular accommodating groove is formed between the outer side wall of the annular magnet and the U-shaped cup; the washer is arranged on the annular magnet; the bass diaphragm is arranged on the bracket and is positioned above the washer; the bass voice coil is arranged at the bottom of the bass diaphragm and extends into the outer annular accommodating groove; the protecting cover is arranged on the bracket and covers the bass diaphragm; the high pitch diaphragm is arranged on the protective cover; the high pitch voice coil is arranged at the bottom of the high pitch diaphragm and extends into the inner annular accommodating groove.

2. The compact, single magnetic circuit, dual voice coil, coaxial horn of claim 1, wherein: the surface of the bracket is concavely provided with a mounting position, and the center of the inner bottom surface of the mounting position is provided with a mounting hole penetrating through the bottom of the bracket; the U-cup is fixed in the mounting hole, and the bass diaphragm is positioned in the mounting position.

3. The compact, single magnetic circuit, dual voice coil, coaxial horn of claim 2, wherein: a plurality of slotted holes have been seted up to the bottom surface periphery of installation position, and the bottom of this support is provided with the tuning paper, and this tuning paper covers each slotted hole.

4. The compact, single magnetic circuit, dual voice coil, coaxial horn of claim 1, wherein: the bottom of support is provided with the circuit board, and this bass voice coil loudspeaker voice coil and high pitch voice coil loudspeaker voice coil all connect the circuit board.

5. The compact, single magnetic circuit, dual voice coil, coaxial horn of claim 1, wherein: the center of the protecting cover is recessed to form a mounting groove, and the periphery of the high-pitch diaphragm is fixed with the periphery of the surface of the mounting groove.