CN222691865U - Double-vibrating-diaphragm loudspeaker - Google Patents

Abstract

The utility model discloses a double-diaphragm speaker, which belongs to the technical field of speakers. A double-diaphragm speaker comprises a speaker bracket, an upper diaphragm is arranged above the speaker bracket, a lower diaphragm is arranged below the speaker bracket, a support ring is arranged between the upper diaphragm and the lower diaphragm and the speaker bracket, the support ring is fitted and connected to the speaker bracket, an inner partition is arranged inside the speaker bracket, and the inner partition and the speaker bracket are arranged as an integrated structure. In order to solve the problem that the traditional speaker is composed of a diaphragm and a voice coil, so the diaphragm vibrates on one side to make sound, and the sound on the other side cannot be effectively transmitted, this double-sided vibration speaker is adopted, one diaphragm is used to play music, and the other diaphragm can generate anti-phase sound waves to offset the sound transmitted to the outside, thereby reducing sound leakage.

Description

Double-vibrating-diaphragm loudspeaker

Technical Field

The utility model relates to the technical field of loudspeakers, in particular to a double-vibrating-diaphragm loudspeaker.

Background

Along with the needs of people's life and work, loudspeaker has been popularized and used by people, but current loudspeaker adopts single vibrating diaphragm more, uses through two loudspeaker jointly and forms the surround sound, and such use cost is higher, and the setting of single vibrating diaphragm has only a vibrating diaphragm.

The traditional loudspeaker is composed of a vibrating diaphragm and a voice coil, so that the vibrating diaphragm vibrates to produce sound, and the sound of the other side cannot be effectively transmitted.

Disclosure of utility model

The utility model aims to provide a double-diaphragm loudspeaker, by adopting the double-diaphragm loudspeaker, one diaphragm is used for playing music, and the other diaphragm can generate opposite-phase sound waves to counteract sound transmitted to the outside, so that leakage sound is reduced, and the problems in the prior art can be solved.

In order to achieve the purpose, the double-diaphragm loudspeaker comprises a loudspeaker support, an upper diaphragm is arranged above the loudspeaker support, a lower diaphragm is arranged below the loudspeaker support, a support ring is arranged between the upper diaphragm and the lower diaphragm and the loudspeaker support, the support ring is connected with the loudspeaker support in a bonding mode, an inner partition is arranged inside the loudspeaker support, and the inner partition and the loudspeaker support are arranged into an integrated structure.

Preferably, sound holes are formed in the periphery of the loudspeaker support, and extend to the inside of the loudspeaker support.

Preferably, a voice coil bracket is arranged between the inner partitions, the voice coil bracket is connected with the loudspeaker bracket through a clamping groove, two side surfaces of the voice coil bracket are provided with two-way voice coils, and the two-way voice coils are connected with the voice coil bracket in a laminating way.

Preferably, a first magnet and a third magnet are arranged above the inner partition, and a second magnet and a fourth magnet are arranged below the inner partition.

Preferably, the first magnet and the third magnet are respectively located at two sides of the voice coil bracket, and the first magnet and the third magnet are installed above the sound hole.

Preferably, the second magnet and the fourth magnet are respectively located at two sides of the voice coil bracket, and the second magnet and the fourth magnet are installed below the sound hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the double-sided vibration loudspeaker, one vibrating diaphragm is used for playing music, and the other vibrating diaphragm can generate opposite-phase sound waves to counteract sound transmitted to the outside, so that the problem of sound leakage is solved;

3. According to the utility model, the magnetic properties of the first magnet and the third magnet are opposite, the magnetic field direction is from left to right, after alternating current is supplied to the double-path voice coil, the upper current direction of the double-path voice coil is inward, according to the customization of the left hand, the double-path voice coil receives downward force, the magnetic properties of the second magnet and the fourth magnet are opposite, the magnetic field direction is from right to left, after alternating current is supplied to the double-path voice coil, the upper current direction of the double-path voice coil faces outwards, and the double-path voice coil receives downward force, so that the double-path voice coil is driven to move up and down under the action of the magnetic field force of the upper magnet and the lower magnet in the magnetic field, and the diaphragm is driven to vibrate and sound.

Drawings

FIG. 1 is an overall front view of the present utility model;

FIG. 2 is a schematic view of the overall deployment structure of the present utility model;

FIG. 3 is a schematic diagram of the overall side cross-sectional structure of the present utility model;

fig. 4 is a schematic view of the overall cross-sectional structure of the present utility model.

The loudspeaker comprises a loudspeaker bracket, an upper diaphragm, a lower diaphragm, a first magnet, a second magnet, a third magnet, a fourth magnet, a voice coil bracket, a double-circuit voice coil, a supporting ring, a sound hole and an inner partition, wherein the loudspeaker bracket comprises a loudspeaker bracket, the upper diaphragm, the lower diaphragm, the first magnet, the second magnet, the third magnet, the fourth magnet, the voice coil bracket, the voice coil, the double-circuit voice coil, the supporting ring, the sound hole and the inner partition.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the problem that the traditional loudspeaker consists of a vibrating diaphragm and a voice coil, the vibrating diaphragm vibrates to produce sound, and the sound of the other side cannot be effectively transmitted, referring to fig. 1-4, the utility model provides the following scheme:

The double-diaphragm loudspeaker comprises a loudspeaker support 1, an upper diaphragm 2 is arranged above the loudspeaker support 1, a lower diaphragm 3 is arranged below the loudspeaker support 1, a support ring 101 is arranged between the upper diaphragm 2 and the lower diaphragm 3 and the loudspeaker support 1, the support ring 101 is in fit connection with the loudspeaker support 1, an inner partition 103 is arranged inside the loudspeaker support 1, and the inner partition 103 and the loudspeaker support 1 are arranged into an integrated structure;

In the embodiment, the loudspeaker consists of two diaphragms, so that the diaphragms can sound on two sides when vibrating up and down, sound pressure can be improved by more than 3dB, in addition, the voice coil of the structure adopts a flat structure and is vertically arranged, so that the size in the width direction is reduced, the loudspeaker is more beneficial to being used on intelligent glasses or intelligent headphones, and the magnetic circuit adopts an upper magnetic circuit structure and a lower magnetic circuit structure, so that the efficiency of the voice coil in a magnetic field is improved by 50%;

The voice coil loudspeaker comprises a loudspeaker support 1, wherein sound holes 102 are formed in the periphery of the loudspeaker support 1, the sound holes 102 extend into the loudspeaker support 1, a voice coil support 8 is arranged between inner partitions 103, the voice coil support 8 is connected with the loudspeaker support 1 through clamping grooves, two-way voice coils 9 are arranged on the surfaces of two sides of the voice coil support 8, the two-way voice coils 9 are connected with the voice coil support 8 in a bonding mode, a first magnet 4 and a third magnet 6 are arranged above the inner partitions 103, a second magnet 5 and a fourth magnet 7 are arranged below the inner partitions 103, the first magnet 4 and the third magnet 6 are respectively positioned on two sides of the voice coil support 8, the first magnet 4 and the third magnet 6 are arranged above the sound holes 102, the second magnet 5 and the fourth magnet 7 are respectively positioned on two sides of the voice coil support 8, and the second magnet 5 and the fourth magnet 7 are arranged below the sound holes 102;

In this embodiment, the four magnets are fixed on a bracket, and a sound release hole 102 is formed in the middle of the bracket, so that pressure is released inside the bracket when the upper diaphragm 2 and the lower diaphragm 3 vibrate, the magnetic directions of the four magnets are all horizontal directions, namely N (S) on the left and S (N) on the right, wherein the first magnet 4 and the third magnet 6 have the same magnetic property, and the second magnet 5 and the fourth magnet 7 have the same magnetic property;

The voice coil shape is annular structure, and the direction of height is flat planar structure, and traditional loudspeaker voice coil is the level and places, and this structure voice coil is the vertical direction and places, can save loudspeaker width direction size like this, and loudspeaker can be made more narrowly, and the voice coil pastes above the support, plays the support fixed action, prevents that the voice coil warp.

The working principle is that the magnetism of the first magnet 4 is opposite to that of the third magnet 6, the magnetic field direction is from left to right, after alternating current is supplied to the double-circuit voice coil 9, the upper current direction of the double-circuit voice coil 9 is inward, according to the customization of the left hand, the double-circuit voice coil 9 receives downward force, the magnetism of the second magnet 5 is opposite to that of the fourth magnet 7, the magnetic field direction is from right to left, after alternating current is supplied to the double-circuit voice coil 9, the upper current direction of the double-circuit voice coil 9 is outward, the double-circuit voice coil 9 receives downward force, and therefore the double-circuit voice coil 9 is acted by the magnetic field force of the upper magnet and the lower magnet to move up and down in the magnetic field, and accordingly the diaphragm is driven to vibrate and sound.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A dual-diaphragm speaker, comprising a speaker bracket (1), characterized in that an upper diaphragm (2) is arranged above the speaker bracket (1), a lower diaphragm (3) is arranged below the speaker bracket (1), a support ring (101) is arranged between the upper diaphragm (2) and the lower diaphragm (3) and the speaker bracket (1), the support ring (101) is closely connected to the speaker bracket (1), an inner partition (103) is arranged inside the speaker bracket (1), and the inner partition (103) and the speaker bracket (1) are arranged as an integrated structure. 2. A dual-diaphragm speaker according to claim 1, characterized in that: sound holes (102) are arranged on all four sides of the speaker bracket (1), and the sound holes (102) extend to the interior of the speaker bracket (1). 3. A dual-diaphragm speaker according to claim 2, characterized in that: a voice coil bracket (8) is arranged between the inner partitions (103), the voice coil bracket (8) is connected to the speaker bracket (1) through a slot, and two-way voice coils (9) are arranged on both side surfaces of the voice coil bracket (8), and the two-way voice coil (9) is closely connected to the voice coil bracket (8). 4. A dual-diaphragm speaker according to claim 3, characterized in that a first magnet (4) and a third magnet (6) are arranged above the inner partition (103), and a second magnet (5) and a fourth magnet (7) are arranged below the inner partition (103). 5. A dual-diaphragm speaker according to claim 4, characterized in that: the first magnet (4) and the third magnet (6) are respectively located on both sides of the voice coil bracket (8), and the first magnet (4) and the third magnet (6) are installed above the sound hole (102). 6. A dual-diaphragm speaker according to claim 4, characterized in that: the second magnet (5) and the fourth magnet (7) are respectively located on both sides of the voice coil bracket (8), and the second magnet (5) and the fourth magnet (7) are installed below the sound hole (102).