CN220475937U - Loudspeaker with double voice coil structure - Google Patents

Abstract

The utility model discloses a double-voice coil structure loudspeaker, which relates to the technical field of sound generators and comprises a shell and mesh cloth, wherein the top end of the shell is fixedly connected with a diaphragm, the interior of the shell is fixedly connected with a magnetic circuit assembly, and the bottom of the diaphragm is provided with a voice coil. According to the double-voice-coil structure loudspeaker, the high-voice diaphragm and the low-voice diaphragm are designed in a split mode, high frequency is not disturbed when in low-voice vibration, the sound of high and low voice is purer, so that the high and low voice is enabled to be connected more naturally, meanwhile, the quality of the high-voice coil can be very light, the high-frequency characteristic can be better, the high-frequency defect of the low voice can be overcome, the high-voice-coil quality can be greatly reduced, the high-frequency characteristic is better, the high-frequency defect of the low voice can be overcome, and the sound emitting effect of the loudspeaker can be improved.

Description

Loudspeaker with double voice coil structure

Technical Field

The utility model relates to the technical field of sound generators, in particular to a double-voice coil structure loudspeaker.

Background

The common loudspeaker comprises a loudspeaker basin, a voice coil, a magnet, T iron, a bracket and a loudspeaker wire interface, most of the prior loudspeakers are moving coil type single bodies, and materials such as the magnet, the voice coil wire, the vibrating diaphragm, a hanging edge and the like used in the units become very diversified along with years of development, so that the original sound effect of music can be expected to be reproduced more accurately.

In the prior art, for example, the Chinese patent number is: the 'single magnetic circuit double voice coil coaxial loudspeaker' with compact structure of CN210807641U 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 stretches into the outer annular accommodating groove.

However, in the vibration loudspeaker in the prior art, a single voice coil or a non-coaxial double voice coil is generally adopted to construct an integrated structural design of a high-voice diaphragm and a low-voice diaphragm, so that when the low-voice diaphragm vibrates, high frequency is easy to be disturbed, the connection of high and low voice is not natural enough, the sound effect of the loudspeaker is affected, and the loudspeaker with the double voice coil structure is provided for the problems.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, when a loudspeaker with an integrated structure of a high-pitch diaphragm and a low-pitch diaphragm vibrates, high frequency is easy to be disturbed, and connection of high and low sounds is not natural enough, so that the sound effect of the loudspeaker is affected.

The utility model is through dividing the diaphragm into the bass diaphragm and high-pitch diaphragm, the voice coil is made up of high-pitch voice coil and bass voice coil, the high-pitch voice coil is glued on the high-pitch diaphragm, the bass voice coil is glued on the bass diaphragm, and the bass voice coil and high-pitch voice coil are connected in parallel, when the double voice coil loudspeaker is in use, the bass voice coil and the high-pitch voice coil are vibrated up and down under the magnetic force of the magnetic field, the loudspeaker adopts the double voice coil structure, the high-pitch diaphragm and the bass diaphragm are designed separately, the high frequency will not be disturbed when the bass vibrates, the sound of the high-pitch and the bass is purer, thus the high-pitch and low-pitch joint is more natural, meanwhile the quality of the high-pitch voice coil can be very light, the high frequency characteristic can be better, thus making up the high frequency deficiency of the bass.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a two voice coil loudspeaker structures, includes shell and screen cloth, the bottom and the screen cloth fixed connection of shell, the top internally mounted of shell has the diaphragm, the diaphragm comprises high pitch diaphragm and bass diaphragm, the bass diaphragm is protruding world top form, the outside edge of high pitch diaphragm coincides with the inboard edge of bass diaphragm;

the bottom of the diaphragm is provided with a voice coil, and the inside of the shell is provided with a magnetic circuit assembly; the magnetic circuit assembly is used for generating magnetic force to enable the voice coil to vibrate up and down, and comprises an outer magnet I, an outer magnet II, a middle magnet I, a middle magnet II, an inner magnet I and an inner magnet II, wherein the outer walls of the outer magnet I and the outer magnet II are fixedly connected with the inner wall of the shell; the voice coil loudspeaker voice coil comprises high voice coil loudspeaker voice coil and bass voice coil, the top of high voice coil loudspeaker voice coil and the interior side surface adhesive coupling of high voice diaphragm just the bottom of high voice coil loudspeaker voice coil stretches into between an outer wall of interior magnetism and an inner wall of well magnetism, the top of bass voice coil and the interior side surface adhesive coupling of bass diaphragm just the bottom of bass voice coil stretches into between an outer wall of well magnetism and an outer magnetism inner wall.

Preferably, the bottom of the high-pitch diaphragm is fixedly connected with a diaphragm supporting ring, and an outer washer is arranged between the outer magnet I and the outer magnet II.

Preferably, a Chinese sauce is arranged between the first middle magnet and the second middle magnet, and the bottom of the membrane supporting ring is arranged at the top end of the second middle magnet.

Preferably, an inner washer is arranged between the first inner magnet and the second inner magnet, the magnetism of the first outer magnet, the magnetism of the second intermediate magnet and the magnetism of the first inner magnet are the same, and the magnetic poles of the first outer magnet, the second intermediate magnet and the first inner magnet are axially distributed.

Preferably, the magnetism of the outer magnet II, the middle magnet I and the inner magnet II is the same, and the magnetic poles of the outer magnet II, the middle magnet I and the inner magnet II are axially distributed.

Preferably, the high-pitch voice coil and the low-pitch voice coil are coaxially arranged, and the bottom ends of the middle magnet I and the inner magnet I are fixedly connected with the inner side of the shell.

Preferably, the first outer magnet, the first middle magnet and the inner magnet are coaxially arranged, and the second outer magnet, the second middle magnet and the second inner magnet are coaxially arranged.

Preferably, the first external magnet, the second external magnet, the first external washer, the first middle magnet, the second middle magnet and the Chinese washer are one of a middle hole annular structure, a middle hole square structure and a middle hole elliptic structure.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the diaphragm is divided into the bass diaphragm and the treble diaphragm, the voice coil consists of the treble voice coil and the bass voice coil, the treble voice coil is adhered on the treble diaphragm, the bass voice coil is adhered on the bass diaphragm, the bass voice coil is positioned in a gap between the outer magnet II and the middle magnet II, the treble voice coil is positioned in a gap between the middle magnet II and the inner magnet II, and the bass voice coil and the treble voice coil are connected in parallel.

2. According to the utility model, by adopting the double-voice coil structure, the quality of the high-voice coil can be greatly reduced, and the high-frequency characteristic is better, so that the defect of high frequency of bass is overcome, and the sound effect of the loudspeaker is improved.

Drawings

Fig. 1 is a perspective view of a loudspeaker with a dual voice coil structure according to the present utility model;

fig. 2 is a front cross-sectional view of a loudspeaker with a dual voice coil structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a loudspeaker with a dual voice coil structure according to the present utility model;

fig. 4 is an exploded view of a loudspeaker with a dual voice coil structure according to the present utility model.

Legend description: 1. a membrane; 11. a high pitch diaphragm; 12. a bass diaphragm; 13. a diaphragm support ring; 2. a housing; 3. a mesh cloth; 4. a magnetic circuit assembly; 41. external magnetism I; 42. external magnetism II; 43. an exo-washer; 44. medium magnetism I; 45. a second intermediate magnet; 46. chinese sauce; 47. an inner magnet I; 48. internal magnetism II; 49. a Chinese sauce; 5. a voice coil; 51. a high pitch voice coil; 52. a bass voice coil.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Examples

As shown in fig. 1 and 2, the utility model provides a double-voice coil loudspeaker, which comprises a shell 2 and a mesh 3, wherein the bottom of the shell 2 is fixedly connected with the mesh 3, a diaphragm 1 is arranged in the top end of the shell 2, the diaphragm 1 consists of a high-pitched diaphragm 11 and a low-pitched diaphragm 12, the low-pitched diaphragm 12 is in a convex ring-ball top shape, the outer side edge of the high-pitched diaphragm 11 coincides with the inner side edge of the low-pitched diaphragm 12, a voice coil 5 is arranged at the bottom of the diaphragm 1, and a diaphragm support ring 13 is fixedly connected with the bottom of the high-pitched diaphragm 11.

In this embodiment, the diaphragm support ring 13 is used for supporting the high-pitched diaphragm 11, the diaphragm 1 is composed of the low-pitched diaphragm 12, the high-pitched diaphragm 11 and the bottom diaphragm support ring 13, and the low-pitched diaphragm 12 and the high-pitched diaphragm 11 are designed in a split manner, when the dual-voice coil loudspeaker is used, after the loudspeaker receives an electric signal output by a signal source device, the current passes through a coil on a unit, positive and negative electricity of the current enables the magnetic circuit assembly 4 to generate magnetic field reaction, the low-pitched voice coil 52 and the high-pitched voice coil 51 are respectively subjected to the magnetic force of the magnetic field to vibrate up and down, the loudspeaker adopts the dual-voice coil structure, the high-pitched diaphragm 11 and the low-pitched diaphragm 12 are designed in a split manner, and high frequency is not disturbed when in low-pitched vibration, so that the vibration effect does not influence the sound effect of the loudspeaker, and the sound of high-pitched voice is purer.

Examples

As shown in fig. 1 to 4, the magnetic circuit assembly 4 is mounted inside the housing 2; the magnetic circuit assembly 4 is used for generating magnetic force to enable the voice coil 5 to vibrate up and down, the magnetic circuit assembly 4 comprises an outer magnet I41, an outer magnet II 42, a middle magnet I44, a middle magnet II 45, an inner magnet I47 and an inner magnet II 48, and the outer walls of the outer magnet I41 and the outer magnet II 42 are fixedly connected with the inner wall of the shell 2; the voice coil 5 is composed of a high-pitch voice coil 51 and a low-pitch voice coil 52, the top end of the high-pitch voice coil 51 is connected with the inner side surface of the high-pitch diaphragm 11 in an adhesive way, the bottom end of the high-pitch voice coil 51 stretches into the space between the outer wall of the inner magnetic first 47 and the inner wall of the middle magnetic first 44, the top end of the low-pitch voice coil 52 is connected with the inner side surface of the low-pitch diaphragm 12 in an adhesive way, the bottom end of the low-pitch voice coil 52 stretches into the space between the outer wall of the middle magnetic first 44 and the inner wall of the outer magnetic first 41, an outer washer 43 is arranged between the outer magnetic first 41 and the outer magnetic second 42, a washer 46 is arranged between the middle magnetic first 44 and the middle magnetic second 45, the bottom of the diaphragm supporting ring 13 is arranged at the top end of the middle magnetic second 45, an inner washer 49 is arranged between the first inner magnet 47 and the second inner magnet 48, the magnetism of the first outer magnet 41, the magnetism of the second middle magnet 45 and the magnetism of the first inner magnet 47 are the same, the magnetic poles of the first outer magnet 41, the magnetism of the second middle magnet 45 and the magnetism of the first inner magnet 47 are axially distributed, the magnetism of the first outer magnet 42, the magnetism of the second middle magnet 44 and the magnetism of the second inner magnet 48 are the same, the magnetic poles of the first outer magnet 42, the second middle magnet 44 and the magnetism of the second inner magnet 48 are axially distributed, the high-pitch voice coil 51 and the low-pitch voice coil 52 are coaxially arranged, the bottom ends of the first middle magnet 44 and the first inner magnet 47 are fixedly connected with the inner side of the shell 2, the first outer magnet 41, the first middle magnet 44 and the first inner magnet 47 are coaxially arranged, and the second outer magnet 42, the second middle magnet 45 and the second inner magnet 48 are coaxially arranged.

In this embodiment, the magnetic circuit assembly 4 is composed of an outer magnetic first 41, an outer magnetic second 42, an outer washer 43, a middle magnetic first 44, a middle magnetic second 45, a washer 46, an inner magnetic first 47, an inner magnetic second 48 and an inner washer 49, the outer magnetic first 41, the middle magnetic first 44 and the inner magnetic first 47 form a lower magnetic circuit, the outer magnetic second 42, the middle magnetic second 45 and the inner magnetic second 48 form an upper magnetic circuit, the outer washer 43, the washer 46 and the inner washer 49 form a middle magnetic circuit, the loudspeaker adopts a double voice coil structure, the voice coil 5 is composed of a high voice coil 51 and a low voice coil 52, the high voice coil 51 is adhered on the high voice diaphragm 11, the low voice coil 52 is adhered on the low voice diaphragm 12, the low voice coil 52 is positioned in the gap between the outer magnetic second 42 and the middle magnetic second 45, the high voice coil 51 is positioned in the gap between the middle magnetic second 45 and the inner magnetic second 48, and the 5 is wound on the framework in the shell 2, so that the voice coil 5 can be placed in the middle of the washer, the high voice coil 51 can be light, the high voice coil can have better high voice characteristic, and the low voice coil can improve the sound efficiency.

The application method and the working principle of the device are as follows: the loudspeaker with the double-voice coil structure consists of a shell 2, a mesh 3, a diaphragm 1, a magnetic circuit assembly 4 and a voice coil 5 in the shell 2, wherein an arrow is in a magnetic direction of a magnet, a dotted line frame is a magnetic loop, the diaphragm 1 consists of a bass diaphragm 12, a treble diaphragm 11 and a bottom diaphragm support ring 13, and the bass diaphragm 12 and the treble diaphragm 11 are in a split design;

the magnetic circuit assembly 4 consists of an outer magnet I41, an outer magnet II 42, an outer washer 43, a middle magnet I44, a middle magnet II 45, a washer 46, an inner magnet I47, an inner magnet II 48 and an inner washer 49, wherein the outer washer 43 is fixed between the outer magnet I41 and the outer magnet II 42, the washer 46 is fixed between the middle magnet I44 and the middle magnet II 45, the inner washer 49 is fixed between the inner magnet I47 and the inner magnet II 48, the outer magnet I41, the middle magnet I44 and the inner magnet I47 form a lower magnetic circuit, the outer magnet II 42, the middle magnet II 45 and the inner magnet II 48 form an upper magnetic circuit, and the outer washer 43, the washer 46 and the inner washer 49 form a middle magnetic circuit; the outer diameters of the outer magnet I41, the middle magnet I44 and the inner magnet I47 are gradually reduced, the outer walls of the outer magnet I41, the outer magnet II 42 and the outer washer 43 are arranged on the inner wall of the shell 2, the bottoms of the middle magnet I44 and the inner magnet I47 are all arranged on the inner wall of the bottom of the shell 2, the outer magnet I41, the middle magnet I44 and the inner magnet I47 are coaxially arranged, the magnetism of the outer magnet I41, the middle magnet II 45 and the inner magnet I47 is the same, and the magnetism of the outer magnet II 42, the middle magnet I44 and the inner magnet II 48 is the same;

meanwhile, the voice coil 5 consists of a high-pitch voice coil 51 and a low-pitch voice coil 52, the high-pitch voice coil 51 is adhered on the high-pitch diaphragm 11, the low-pitch voice coil 52 is adhered on the low-pitch diaphragm 12, the low-pitch voice coil 52 is positioned in a gap between the outer magnet II 42 and the middle magnet II 45, the high-pitch voice coil 51 is positioned in a gap between the middle magnet II 45 and the inner magnet II 48, the voice coil 5 is wound on a framework in the shell 2, thus the voice coil 5 can be placed in the middle of a washer (the low-pitch voice coil 52 is positioned in the middle of the outer washer 43 and the washer 46, the high-pitch voice coil 51 is positioned in the middle of the washer 46 and the inner washer 49), and the low-pitch voice coil 52 and the high-pitch voice coil 51 are connected in parallel;

the loudspeaker adopts a double voice coil structure, the high-pitch diaphragm 11 and the low-pitch diaphragm 12 are designed in a split mode, and high frequency is not disturbed when in low-pitch vibration, so that the sound effect of the loudspeaker is not affected by the vibration effect, and the sound of high-pitch and low-pitch sounds is purer, so that the connection of the high-pitch and the low-pitch sounds is more natural; meanwhile, the double-voice coil structure is adopted, the quality of the high-voice coil 51 can be very light, and the high-frequency characteristic can be better, so that the defect of low-voice high frequency can be overcome, and the sound effect of the loudspeaker can be improved.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a two voice coil loudspeaker voice coil structure loudspeaker, includes shell (2) and screen cloth (3), the bottom and the screen cloth (3) fixed connection of shell (2), its characterized in that: the top end of the shell (2) is internally provided with a diaphragm (1), the diaphragm (1) consists of a high-pitch diaphragm (11) and a low-pitch diaphragm (12), the low-pitch diaphragm (12) is in a convex dome shape, and the outer side edge of the high-pitch diaphragm (11) is overlapped with the inner side edge of the low-pitch diaphragm (12);

the voice coil (5) is installed at the bottom of the diaphragm (1), and the magnetic circuit component (4) is installed inside the shell (2); the magnetic circuit assembly (4) is used for generating magnetic force to enable the voice coil (5) to vibrate up and down, the magnetic circuit assembly (4) comprises an outer magnet I (41), an outer magnet II (42), a middle magnet I (44), a middle magnet II (45), an inner magnet I (47) and an inner magnet II (48), and the outer walls of the outer magnet I (41) and the outer magnet II (42) are fixedly connected with the inner wall of the shell (2); the voice coil (5) comprises a high-pitch voice coil (51) and a low-pitch voice coil (52), the top end of the high-pitch voice coil (51) is connected with the inner side surface of the high-pitch diaphragm (11) in an adhesive mode, the bottom end of the high-pitch voice coil (51) stretches into the space between the outer wall of the inner magnet (47) and the inner wall of the middle magnet (44), the top end of the low-pitch voice coil (52) is connected with the inner side surface of the low-pitch diaphragm (12) in an adhesive mode, and the bottom end of the low-pitch voice coil (52) stretches into the space between the outer wall of the middle magnet (44) and the inner wall of the outer magnet (41).

2. A dual voice coil construction horn as defined in claim 1 wherein: the bottom of the high-pitch diaphragm (11) is fixedly connected with a diaphragm supporting ring (13), and an outer washer (43) is arranged between the outer magnet I (41) and the outer magnet II (42).

3. A dual voice coil construction horn as claimed in claim 2, wherein: a Chinese sauce (46) is arranged between the first middle magnet (44) and the second middle magnet (45), and the bottom of the membrane support ring (13) is arranged at the top end of the second middle magnet (45).

4. A dual voice coil construction horn as defined in claim 1 wherein: an inner washer (49) is arranged between the inner magnet I (47) and the inner magnet II (48), the magnetism of the outer magnet I (41), the magnetism of the middle magnet II (45) and the magnetism of the inner magnet I (47) are the same, and the magnetic poles of the outer magnet I (41), the magnetism of the middle magnet II (45) and the magnetism of the inner magnet I (47) are axially distributed.

5. A dual voice coil construction horn as defined in claim 1 wherein: the magnetic properties of the outer magnetic second (42), the middle magnetic first (44) and the inner magnetic second (48) are the same, and the magnetic poles of the outer magnetic second (42), the middle magnetic first (44) and the inner magnetic second (48) are axially distributed.

6. A dual voice coil construction horn as defined in claim 1 wherein: the high-pitch voice coil (51) and the low-pitch voice coil (52) are coaxially arranged, and the bottom ends of the middle magnetic part (44) and the inner magnetic part (47) are fixedly connected with the inner side of the shell (2).

7. A dual voice coil construction horn as defined in claim 1 wherein: the outer magnet I (41), the middle magnet I (44) and the inner magnet I (47) are arranged coaxially, and the outer magnet II (42), the middle magnet II (45) and the inner magnet II (48) are arranged coaxially.

8. A dual voice coil construction loudspeaker according to claim 3, wherein: the outer magnet I (41), the outer magnet II (42), the outer washer (43), the middle magnet I (44), the middle magnet II (45) and the Chinese washer (46) are one of a middle hole annular structure, a middle hole square structure and a middle hole oval structure.