Dual-vibration loudspeaker and bone conduction earphone

Abstract

The utility model discloses a double vibration type loudspeaker and bone conduction earphone, include: shell, shell includes fixed type fixed magnetic structure, and fixed type fixed magnetic structure is annularly arranged, voice coil structure, voice coil structure sets up in the fixed type fixed magnetic structure inner periphery, and voice coil structure and shell are fixedly arranged, first vibrating reed and second vibrating reed, the fixed part of first vibrating reed and the fixed part of second vibrating reed are arranged on the shell respectively, and first vibrating reed and second vibrating reed are located at both ends of fixed type fixed magnetic structure, first attractive block and second attractive block, first attractive block sets up on the vibration part of first vibrating reed, and second attractive block sets up on the vibration part of second vibrating reed. Adopt above -mentioned scheme, provide a kind of double vibration type loudspeaker and bone conduction earphone by first attractive block and second attractive block respectively under the action of voice coil structure and fixed type fixed magnetic structure vibration and superimposed enhancement vibration intensity.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeakers, specifically relating to a dual-vibration loudspeaker and bone conduction headphones. Background Technology

[0002] Bone conduction loudspeakers work by inputting a changing audio current into the voice coil, causing the voice coil to generate an electromagnetic force under the influence of a magnet's magnetic field, thus making the loudspeaker vibrate. The vibrating loudspeaker acts directly on the skull (temporal bone), and the vibration is transmitted through the bone to the cochlea (inner ear), where it is ultimately perceived by the auditory nerve.

[0003] Existing loudspeakers typically include a housing, a diaphragm, a gravity block, and a voice coil. The voice coil is mounted on the housing, and the gravity block is mounted on the diaphragm. The diaphragm and housing are connected. The voice coil is usually fixed to the housing, so that the electromagnetic field generated by the audio current flowing through the voice coil interacts with the magnetic field generated by the magnet, causing the diaphragm and magnet to vibrate together.

[0004] One reason is that the interaction between the electromagnetic field of the voice coil and the magnetic field generated by the magnet is relatively small, resulting in weak vibration intensity in existing loudspeakers. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a dual-vibration loudspeaker and bone conduction headphones that enhance vibration intensity by having a first gravity block and a second gravity block vibrate under the action of a voice coil structure and a fixed solid magnetic structure, respectively.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dual-vibration loudspeaker, characterized in that it comprises: a housing, the housing including a fixed magnetic structure arranged in a ring; a voice coil structure disposed on the inner periphery of the fixed magnetic structure, and the voice coil structure and the housing being fixedly disposed; a first vibrating plate and a second vibrating plate, the fixed portions of the first vibrating plate and the second vibrating plate being respectively disposed on the housing, and the first vibrating plate and the second vibrating plate being located at opposite ends of the fixed magnetic structure; a first gravity block and a second gravity block, the first gravity block being disposed on the vibrating portion of the first vibrating plate, and the second gravity block being disposed on the vibrating portion of the second vibrating plate.

[0008] The present invention is further configured such that: the fixed magnetic structure includes a first magnetic structure and a second magnetic structure, both the first magnetic structure and the second magnetic structure are arranged in a ring, and a magnetic end of the first magnetic structure faces a magnetic end of the second magnetic structure; the voice coil structure includes a first voice coil portion disposed on the inner periphery of the first magnetic structure and a second voice coil portion disposed on the inner periphery of the second magnetic structure.

[0009] The present invention is further configured such that both the first gravity block and the second gravity block adopt a solid magnetic structure.

[0010] The present invention is further configured such that: the magnetic poles at the opposite ends of the first and second solid magnetic structures are arranged with the same polarity, the winding directions of the first and second voice coil portions are the same, and the magnetic poles at the opposite ends of the first and second gravity blocks are arranged with the same polarity; or, the magnetic poles at the opposite ends of the first and second solid magnetic structures are arranged with opposite polarities, the winding directions of the first and second voice coil portions are opposite, and the magnetic poles at the opposite ends of the first and second gravity blocks are arranged with opposite polarities; or, the magnetic poles at the opposite ends of the first and second solid magnetic structures are arranged with the same polarity, the winding directions of the first and second voice coil portions are opposite, and the magnetic poles at the opposite ends of the first and second gravity blocks are arranged with the same polarity; or, the magnetic poles at the opposite ends of the first and second solid magnetic structures are arranged with opposite polarities, the winding directions of the first and second voice coil portions are the same, and the magnetic poles at the opposite ends of the first and second gravity blocks are arranged with opposite polarities.

[0011] The present invention is further configured such that: the fixing part of the first vibrating plate and the fixing part of the second vibrating plate are respectively fixedly disposed on the fixed magnetic structure; or, the outer shell includes a metal cylinder, the fixed magnetic structure is disposed on the inner circumference of the metal cylinder, and the fixing part of the first vibrating plate and the fixing part of the second vibrating plate are respectively fixedly disposed on the metal cylinder.

[0012] The present invention is further configured such that: the fixed magnetic structure includes a first magnetic structure and a second magnetic structure, both the first magnetic structure and the second magnetic structure are arranged in a ring, and a magnetic end of the first magnetic structure faces a magnetic end of the second magnetic structure.

[0013] The present invention is further configured to include a reinforcing member, the reinforcing member comprising a reinforcing part and an assembly part disposed around the outer periphery of the reinforcing part, the reinforcing part being inserted into the inner periphery of the voice coil structure, and the assembly part being disposed between the first and second solid magnet structures and being fixedly connected to the first and second solid magnet structures respectively.

[0014] The present invention is further configured such that: the reinforcing part includes a first part and a second part located on both sides of the assembly part; the voice coil structure includes a first voice coil part surrounding the outer periphery of the first part and a second voice coil part surrounding the outer periphery of the second part; and / or, one end of the voice coil structure is fixedly disposed on the assembly part; and / or, the inner periphery of the voice coil structure is fixedly disposed on the outer peripheral wall of the reinforcing part.

[0015] The present invention is further configured such that: the first vibrating plate is disposed on the first solid magnetic structure, and the second vibrating plate is disposed on the second solid magnetic structure.

[0016] A bone conduction headphone, characterized in that it includes the aforementioned dual-vibration speaker.

[0017] By adopting the above technical solution, 1. When the voice coil structure carries an audio current, the voice coil structure generates an electromagnetic field, and the fixed magnetic structure generates a fixed magnetic field. Under the superposition of the two, the first gravitational block is acted upon to drive the first vibrating plate to vibrate, and the second gravitational block is also acted upon to drive the second vibrating plate to vibrate. The vibration intensity is enhanced under the combined action of the first and second vibrating plates; 2. Because the strong static magnetic field generated by the fixed magnetic structure has a large magnetic force on the first and second gravitational blocks and reaches a state of equilibrium without external interference, the electromagnetic field generated by the voice coil structure, which has a smaller effect, breaks the magnetic equilibrium state of the fixed magnetic structure on the first and second gravitational blocks. Under the constraint of the first and second vibrating plates, the small change in the electromagnetic field of the voice coil structure can significantly drive the vibration of the first and second gravitational blocks, and the vibration intensity of the first and second gravitational blocks is significantly enhanced. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an assembly drawing of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0021] Figure 3 This is an exploded view of Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of one embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of one embodiment of the present utility model;

[0024] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Outer casing;

[0026] 11. Metal cylinder; 12. Fixed magnetic structure;

[0027] 121. First solid-magnetic structure; 122. Second solid-magnetic structure;

[0028] 2. Voice coil structure;

[0029] 21. First voice coil section; 22. Second voice coil section;

[0030] 31. First vibrating plate; 32. Second vibrating plate;

[0031] 41. First Gravity Block; 42. Second Gravity Block;

[0032] 5. Reinforcing components;

[0033] 51. Reinforcement Department; 52. Assembly Department;

[0034] 511. First part; 512. Second part. Detailed Implementation

[0035] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0036] Example 1:

[0037] like Figures 1-5 As shown, this utility model discloses a dual-vibration loudspeaker, comprising:

[0038] The outer casing 1 includes a fixed magnetic structure 12, which is arranged in a ring shape.

[0039] Voice coil structure 2 is disposed on the inner periphery of fixed magnetic structure 12, and voice coil structure 2 and outer shell 1 are fixedly disposed.

[0040] The first vibrating plate 31 and the second vibrating plate 32 are respectively provided on the outer shell 1, and the first vibrating plate 31 and the second vibrating plate 32 are located at both ends of the fixed magnetic structure 12.

[0041] A first gravity block 41 and a second gravity block 42 are provided. The first gravity block 41 is disposed on the vibrating part of the first vibrating plate 31, and the second gravity block 42 is disposed on the vibrating part of the second vibrating plate 32.

[0042] Therefore, 1. When an audio current flows through the voice coil structure 2, the voice coil structure 2 generates an electromagnetic field, and the fixed magnetic structure 12 generates a fixed magnetic field. The superposition of these two forces acts on the first gravitational block 41 to drive the first vibrating plate 31 to vibrate, and simultaneously acts on the second gravitational block 42 to drive the second vibrating plate 32 to vibrate. The combined effect of the first and second vibrating plates 31 and 32 enhances the vibration intensity. 2. The strong static magnetic field generated by the fixed magnetic structure 12 exerts a significant magnetic force on the first and second gravitational blocks 41 and 42. The electromagnetic field generated by the voice coil structure 2, which has a relatively small effect, is used to achieve a balanced state without external interference. However, under the influence of the electromagnetic field generated by the voice coil structure 2, the magnetic equilibrium state of the fixed magnetic structure 12 on the first gravity block 41 and the second gravity block 42 is broken. Under the constraint of the first vibrating plate 31 and the second vibrating plate 32, the small change in the electromagnetic field of the voice coil structure 2 can significantly drive the vibration of the first gravity block 41 and the second gravity block 42, and the vibration intensity of the first gravity block 41 and the second gravity block 42 is significantly enhanced.

[0043] Specifically, the fixed magnetic structure 12 includes a first magnetic structure 121 and a second magnetic structure 122. Both the first magnetic structure 121 and the second magnetic structure 122 are arranged in a ring along the vertical axis, with the first magnetic structure 121 on top and the second magnetic structure 122 on the bottom. One magnetic end of the first magnetic structure 121 faces one magnetic end of the second magnetic structure 122. The voice coil structure 2 includes a first voice coil portion 21 disposed on the inner periphery of the first magnetic structure 121 and a second voice coil portion 22 disposed on the inner periphery of the second magnetic structure 122. Both the first gravity block 41 and the second gravity block 42 adopt a magnetic structure.

[0044] Therefore, the vibration intensity of the first vibrating plate 31 is controlled by the first solid magnetic structure 121 and the first voice coil portion 21 acting on the first gravity block 41, which are closer to the first gravity block 41. Similarly, the vibration intensity of the second vibrating plate 32 is controlled by the second solid magnetic structure 122 and the second voice coil portion 22 acting on the second gravity block 42, which are closer to the second gravity block 42.

[0045] Preferred, such as Figure 4 As shown, in this embodiment, the magnetic poles at the opposite ends of the first solid magnetic structure 121 and the second solid magnetic structure 122 are arranged with the same pole, which is shown as the N pole. The first voice coil portion 21 and the second voice coil portion 22 are wound in the same direction. The magnetic poles at the opposite ends of the first gravity block 41 and the second gravity block 42 are arranged with the same pole, which is shown as the S pole.

[0046] Therefore, when no audio current flows through the voice coil structure 2, the combined forces of the gravity of each gravitational block, the force exerted by each magnetic mechanism on each gravitational block, and the combined force exerted by each vibrating plate on the corresponding gravitational block reach an equilibrium position (the gravitational blocks are stationary at a certain equilibrium position). Subsequently, when an audio current flows through the voice coil structure 2, the force exerted by the voice coil structure 2 on each gravitational block will break the original equilibrium state. Specifically, because the first voice coil section 21 and the second voice coil section 22 have the same winding direction, the direction of the current flowing through them is the same, that is, the direction of the audio current flowing into the two voice coil sections is either clockwise or clockwise. Counterclockwise, the forces acting on the first gravitational block 41 by the first voice coil section 21 and the forces acting on the second gravitational block 42 by the second voice coil section 22 are in the same direction (both upwards or downwards, depending on the direction of the current). In the previous static equilibrium state, the addition of the unidirectional force from the voice coils causes the gravitational blocks to break the existing equilibrium and vibrate in the same direction. Furthermore, since the force exerted by the first magnetic structure 121 on the first gravitational block 41 is upwards and the force exerted by the second magnetic structure 122 on the second gravitational block 42 is downwards, when a current flows through the voice coil structure 2 in one direction… The first gravitational block 41 and the second gravitational block 42 vibrate upwards in the same direction. The first gravitational block 41 is subjected to upward forces from the first solid magnetic structure 121 and the first voice coil portion 21, resulting in a larger vibration amplitude. The second gravitational block 42 is subjected to downward forces from the second solid magnetic structure 122 and upward forces from the second voice coil portion 22. These forces partially cancel each other out, reducing the vibration amplitude. Under the elastic constraint of the first vibrating plate 31 and the second vibrating plate 32, both the first gravitational block 41 and the second gravitational block 42 reach a new equilibrium position. When a current flows in one direction, the first gravitational block 41 and the second gravitational block 42 vibrate downwards in the same direction. The second gravitational block 42 experiences downward forces from the second solid magnetic structure 122 and the second voice coil portion 22, resulting in a larger vibration amplitude. Meanwhile, the first gravitational block 41 experiences upward forces from the first solid magnetic structure 121 and downward forces from the first voice coil portion 21. These forces partially cancel each other out, reducing the vibration amplitude. Under the elastic constraint of the first vibrating plate 31 and the second vibrating plate 32, both the first gravitational block 41 and the second gravitational block 42 reach a new equilibrium position. In summary, upward vibration is achieved by combining the larger amplitude of the first gravitational block 41 with the smaller amplitude of the second gravitational block 42, while downward vibration is achieved by combining the larger amplitude of the second gravitational block 42 with the smaller amplitude of the first gravitational block 41, thus making the output vibration intensity more stable under both positive and negative current conditions.

[0047] In other embodiments, the magnetic poles at opposite ends of the first gravity block 41 and the second gravity block 42 are both N poles.

[0048] Preferred, such as Figure 5As shown, in this embodiment, the magnetic poles at the opposite ends of the first solid magnetic structure 121 and the second solid magnetic structure 122 are arranged with opposite poles. The figure shows that the lower end of the first solid magnetic structure 121 is the N pole and the upper end of the second solid magnetic structure 122 is the S pole. The winding directions of the first voice coil portion 21 and the second voice coil portion 22 are opposite. The magnetic poles at the opposite ends of the first gravity block 41 and the second gravity block 42 are arranged with opposite poles. The figure shows that the lower end of the first gravity block 41 is the S pole and the upper end of the second gravity block 42 is the N pole.

[0049] Therefore, when no audio current flows through the voice coil structure 2, the combined forces of the gravity of each gravitational block, the force exerted by each magnetic mechanism on each gravitational block, and the combined force exerted by each vibrating plate on the corresponding gravitational block reach an equilibrium position (the gravitational block is stationary at a certain equilibrium position). Subsequently, when an audio current flows through the voice coil structure 2, the force exerted by the voice coil structure 2 on each gravitational block will break the original equilibrium state. Specifically, the first voice coil section 21 and the second voice coil section 22 have opposite winding directions, resulting in opposite current directions passing through them. Since the first gravitational block 41 is oriented towards the magnetic pole of the first voice coil section 21... The magnetic poles of the first gravity block 41 and the second gravity block 42 are opposite to those of the second voice coil section 22. Therefore, the forces acting on the first gravity block 41 by the first voice coil section 21 and the second gravity block 42 by the second voice coil section 22 are in the same direction. Previously, in a static equilibrium state, the addition of the voice coil force caused the gravity blocks to break the existing equilibrium and vibrate in the same direction. Furthermore, since the force exerted by the first magnetic structure 121 on the first gravity block 41 is upward and the force exerted by the second magnetic structure 122 on the second gravity block 42 is downward, when a current flows through the voice coil structure 2 in one direction, the first gravity block 41... The first gravitational block 41 and the second gravitational block 42 vibrate upwards in the same direction. The first gravitational block 41 is subjected to upward forces from the first solid magnetic structure 121 and the first voice coil portion 21, resulting in a larger vibration amplitude. The second gravitational block 42 is subjected to downward forces from the second solid magnetic structure 122 and upward forces from the second voice coil portion 22. These forces partially cancel each other out, reducing the vibration amplitude. Under the elastic constraint of the first vibrating plate 31 and the second vibrating plate 32, both the first gravitational block 41 and the second gravitational block 42 reach a new equilibrium position. (The last sentence appears to be incomplete and possibly refers to a separate point about the voice coil structure 2.) When the current flows in the opposite direction, the first gravitational block 41 and the second gravitational block 42 vibrate downwards in the same direction. The second gravitational block 42 is subjected to downward forces from the second solid magnetic structure 122 and the second voice coil section 22, resulting in a larger vibration amplitude. The first gravitational block 41 is subjected to upward forces from the first solid magnetic structure 121 and downward forces from the first voice coil section 21. These forces partially cancel each other out, reducing the vibration amplitude. Under the elastic constraint of the first vibrating plate 31 and the second vibrating plate 32, both the first gravitational block 41 and the second gravitational block 42 reach a new equilibrium position. In summary, upward vibration is achieved by combining the larger amplitude of the first gravitational block 41 with the smaller amplitude of the second gravitational block 42, and downward vibration is achieved by combining the larger amplitude of the second gravitational block 42 with the smaller amplitude of the first gravitational block 41, thus making the output vibration intensity more stable under both positive and negative current conditions.

[0050] In other embodiments, the lower end of the first gravity block 41 is the N pole, and the upper end of the second gravity block 42 is the S pole, and so on.

[0051] Preferred, such as Figure 4As shown, in this embodiment, the magnetic poles at the opposite ends of the first solid magnetic structure 121 and the second solid magnetic structure 122 are arranged with the same pole, which is shown as the N pole. The winding directions of the first voice coil portion 21 and the second voice coil portion 22 are opposite. The magnetic poles at the opposite ends of the first gravity block 41 and the second gravity block 42 are arranged with the same pole, which is shown as the S pole.

[0052] Therefore, when no audio current flows through the voice coil structure 2, the combined forces of the gravity of each gravitational block, the force exerted by each solid magnet mechanism on each gravitational block, and the combined force exerted by each vibrating plate on the corresponding gravitational block reach an equilibrium position (the gravitational block is stationary at a certain equilibrium position). Subsequently, when an audio current flows through the voice coil structure 2, the force exerted by the voice coil structure 2 on each gravitational block will break the equilibrium state. Specifically, the first voice coil section 21 and the second voice coil section 22 have opposite winding directions, resulting in opposite current directions passing through them. Since the first gravitational block 41 faces the magnetic pole of the first voice coil section 21 and the second gravitational block 22, the current direction of the first gravitational block 41 will be opposite to that of the second gravitational block 22. The force blocks 42 are aligned with the magnetic poles of the second voice coil section 22, thus the forces acting on the first force block 41 by the first voice coil section 21 are opposite to those acting on the second force block 42 by the second voice coil section 22. In the previous static equilibrium state, the addition of the opposing force from the voice coil caused the force blocks to break the existing equilibrium and vibrate in opposite directions. Furthermore, since the force exerted by the first magnetic structure 121 on the first force block 41 is upward and the force exerted by the second magnetic structure 122 on the second force block 42 is downward, when a current flows through the voice coil structure 2 in one direction, the first force block 42... The first and second gravitational blocks 41 vibrate in opposite directions. The forces acting on the first magnetic structure 121 and the first voice coil 21 on the first gravitational block 41 are both upward, resulting in a larger vibration amplitude. Conversely, the forces acting on the second magnetic structure 122 and the second voice coil 22 on the second gravitational block 42 are both downward, resulting in a larger vibration amplitude. Under the elastic constraint of the first and second vibrating plates 31 and 32, both the first and second gravitational blocks 41 and 42 reach new equilibrium positions. When a current flows through the voice coil structure 2 in another direction, the first and second gravitational blocks 41... The force blocks 42 vibrate towards each other. The first force block 41 is subjected to an upward force from the first solid magnetic structure 121 and a downward force from the first voice coil portion 21. These two forces partially cancel each other out, reducing the vibration amplitude. Similarly, the second force block 42 is subjected to a downward force from the second solid magnetic structure 122 and an upward force from the second voice coil portion 22. These two forces also partially cancel each other out, further reducing the vibration amplitude. Under the elastic constraint of the first and second vibrating plates 31 and 32, both the first and second force blocks 41 and 42 reach a new equilibrium position. In summary, vibrations that are far apart maximize the amplitude, while vibrations that are close together minimize the amplitude, thereby maximizing the vibration intensity and increasing the volume.

[0053] In other embodiments, the magnetic poles at opposite ends of the first gravity block 41 and the second gravity block 42 are both S poles.

[0054] Preferred, such as Figure 5 As shown, in this embodiment, the magnetic poles at the opposite ends of the first solid magnetic structure 121 and the second solid magnetic structure 122 are arranged with opposite poles. The figure shows that the lower end of the first solid magnetic structure 121 is the N pole and the upper end of the second solid magnetic structure 122 is the S pole. The winding directions of the first voice coil portion 21 and the second voice coil portion 22 are the same. The magnetic poles at the opposite ends of the first gravity block 41 and the second gravity block 42 are arranged with opposite poles. The figure shows that the lower end of the first gravity block 41 is the S pole and the upper end of the second gravity block 42 is the N pole.

[0055] Therefore, when no audio current flows through the voice coil structure 2, the combined forces of the gravity of each gravitational block, the force exerted by each solid magnet mechanism on each gravitational block, and the combined force exerted by each vibrating plate on the corresponding gravitational block reach an equilibrium position (the gravitational block is stationary at a certain equilibrium position). Subsequently, when an audio current flows through the voice coil structure 2, the force exerted by the voice coil structure 2 on each gravitational block will break the original equilibrium state. Specifically, the first voice coil section 21 and the second voice coil section 22 have the same winding direction, making the current direction passing through them consistent. Since the first gravitational block 41 faces the magnetic pole of the first voice coil section 21 and the first... The magnetic poles of the two gravity blocks 42 are opposite to those of the second voice coil section 22. Therefore, the forces acting on the first gravity block 41 by the first voice coil section 21 are opposite in direction to the forces acting on the second gravity block 42 by the second voice coil section 22. In the previous static equilibrium state, the addition of the opposing force from the voice coil drives the gravity blocks to break the existing equilibrium and vibrate in opposite directions. Furthermore, since the force exerted by the first magnetic structure 121 on the first gravity block 41 is upward and the force exerted by the second magnetic structure 122 on the second gravity block 42 is downward, when a current flows through the voice coil structure 2 in one direction, the first gravity block... The first gravity block 41 and the second gravity block 42 vibrate in opposite directions. The forces acting on the first magnetic structure 121 and the first voice coil 21 on the first gravity block 41 are both upward, resulting in a larger vibration amplitude. The forces acting on the second magnetic structure 122 and the second voice coil 22 on the second gravity block 42 are both downward, resulting in a larger vibration amplitude. Under the elastic constraint of the first vibrating plate 31 and the second vibrating plate 32, both the first gravity block 41 and the second gravity block 42 reach a new equilibrium position. When a current is passed through the voice coil structure 2 in another direction, the first gravity block 41 and the second gravity block 42... The gravity blocks 42 vibrate towards each other. The first gravity block 41 is subjected to an upward force from the first solid magnetic structure 121 and a downward force from the first voice coil portion 21. These forces partially cancel each other out, reducing the vibration amplitude. Similarly, the second gravity block 42 is subjected to a downward force from the second solid magnetic structure 122 and an upward force from the second voice coil portion 22. These forces also partially cancel each other out, further reducing the vibration amplitude. Under the elastic constraint of the first and second vibrating plates 31 and 32, both gravity blocks 41 and 42 reach a new equilibrium position. In summary, vibrations that are far apart maximize the amplitude, while vibrations that are close together minimize the amplitude, thus maximizing the vibration intensity and increasing the volume.

[0056] Preferably, the combination of the first vibrating plate 31, the first attractive block 41, the first voice coil part 21, and the first solid magnetic structure 121 is symmetrically arranged with the combination of the second vibrating plate 32, the second attractive block 42, the second voice coil part 22, and the second solid magnetic structure 122. This not only makes the structure more orderly, but also the reverse vibration embodiment can achieve consistency of force on the first vibrating plate 31 and the second vibrating plate 32 and symmetry of vibration, thus achieving better acoustic effect.

[0057] In other embodiments, the lower end of the first gravity block 41 is the N pole, and the upper end of the second gravity block 42 is the S pole, and so on.

[0058] It should be noted that speakers with different settings can be matched and installed with headphone earpieces in a suitable way to achieve better vibration energy transmission.

[0059] In other embodiments, the first attraction block 41 and the second attraction block 42 may be made of soft magnetic materials such as iron blocks that do not have magnetism themselves but can be attracted by magnets.

[0060] In this embodiment, the outer shell 1 includes only the first magnetic fixing mechanism and the second magnetic fixing structure 122, so that the fixing part of the first vibrating plate 31 is fixed to the upper surface of the first magnetic fixing structure 121 by means of adhesive bonding or the like, and the fixing part of the second vibrating plate 32 is fixed to the lower surface of the second magnetic fixing structure 122 by means of adhesive bonding or the like, making the overall structure simpler.

[0061] In addition, this embodiment also includes a reinforcing member 5, which includes a cylindrical reinforcing part 51 and an integrally formed assembly part 52 disposed around the outer periphery of the reinforcing part 51. The reinforcing part 51 is inserted into the inner periphery of the voice coil structure 2, and the assembly part 52 is disposed between the first magnetizing structure 121 and the second magnetizing structure 122, and is fixedly connected to the first magnetizing structure 121 and the second magnetizing structure 122 respectively by adhesive.

[0062] Therefore, the reinforcement 5 enables the assembly of the first magnetic structure 121 and the second magnetic structure 122 through the assembly part 52, and the reinforcement 51 enables the magnetic conduction of the voice coil structure 2, so that the force of the voice coil structure 2 acting on the first attraction block 41 and the second attraction block 42 is greater to enhance the vibration intensity.

[0063] Preferably, the reinforcing part 51 includes a first part 511 and a second part 512 located on both sides of the assembly part 52. The first part 511 is inserted into the inner circumference of the first voice coil part 21, and the second part 512 is inserted into the inner circumference of the second voice coil part 22, such that the first part 511 performs magnetic reinforcement on the first voice coil part 21 to enhance the force on the first attractive block 41, and the second part 512 performs magnetic reinforcement on the second voice coil part 22 to enhance the force on the second attractive block 42.

[0064] The voice coil structure 2 can be fixed in any of the following ways:

[0065] The lower end of the first voice coil 21 abuts against the mounting part 52 and is fixed by means of adhesive bonding or the like. The upper end of the second voice coil 22 abuts against the mounting part 52 and is fixed by means of adhesive bonding or the like.

[0066] The inner circumference of the first voice coil portion 21 is fixed to the outer circumferential wall of the first part 511 by means of glue or the like, and the inner circumference of the second voice coil portion 22 is fixed to the outer circumferential wall of the second part 512 by means of glue or the like.

[0067] Example 2:

[0068] like Figure 6 As shown, this utility model discloses a dual-vibration loudspeaker, whose main structure is the same as that of Embodiment 1. The difference is that the outer shell 1 also includes a metal cylinder 11. The first magnetic structure 121 and the second magnetic structure 122 are both disposed on the inner circumference of the metal cylinder 11 and fixed by means of glue or the like. The fixing part of the first vibrating plate 31 and the fixing part of the second vibrating plate 32 are respectively fixedly disposed on the metal cylinder 11.

[0069] The metal cylinder 11 serves as the outermost component to ensure the stability of the internal structure installation and provides mounting positions for the first vibrating plate 31 and the second vibrating plate 32. In addition, the metal cylinder 11 also has a certain magnetic guiding effect on the first solid magnetic structure 121 and the second solid magnetic structure 122, as well as shielding the influence of external magnetic fields.

[0070] Example 3:

[0071] A bone conduction headphone includes the dual-vibration speaker described in Embodiments 1 and 2.

[0072] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-vibration loudspeaker, characterized in that, include: The outer shell (1) includes a fixed magnetic structure (12) arranged in a ring shape; The voice coil structure (2) is disposed on the inner periphery of the fixed magnetic structure (12), and the voice coil structure (2) and the outer shell (1) are fixedly disposed. The first vibrating plate (31) and the second vibrating plate (32) are respectively disposed on the outer shell (1), and the first vibrating plate (31) and the second vibrating plate (32) are located at both ends of the fixed magnetic structure (12). The first gravity block (41) and the second gravity block (42) are provided on the vibration part of the first vibrating plate (31) and the second gravity block (42) is provided on the vibration part of the second vibrating plate (32).

2. The dual-vibration loudspeaker according to claim 1, characterized in that: The fixed magnetic structure (12) includes a first magnetic structure (121) and a second magnetic structure (122). Both the first magnetic structure (121) and the second magnetic structure (122) are arranged in a ring. One magnetic end of the first magnetic structure (121) faces one magnetic end of the second magnetic structure (122). The voice coil structure (2) includes a first voice coil portion (21) disposed on the inner periphery of the first magnetic structure (121) and a second voice coil portion (22) disposed on the inner periphery of the second magnetic structure (122).

3. The dual-vibration loudspeaker according to claim 2, characterized in that: Both the first gravity block (41) and the second gravity block (42) adopt a solid magnetic structure.

4. The dual-vibration loudspeaker according to claim 3, characterized in that: The magnetic poles at opposite ends of the first solid magnetic structure (121) and the second solid magnetic structure (122) are arranged with the same pole; the winding directions of the first voice coil portion (21) and the second voice coil portion (22) are the same; and the magnetic poles at opposite ends of the first gravity block (41) and the second gravity block (42) are arranged with the same pole; or, The magnetic poles at the opposite ends of the first solid magnetic structure (121) and the second solid magnetic structure (122) are arranged with opposite poles; the winding directions of the first voice coil portion (21) and the second voice coil portion (22) are opposite; and the magnetic poles at the opposite ends of the first gravity block (41) and the second gravity block (42) are arranged with opposite poles; or, The magnetic poles at opposite ends of the first solid magnetic structure (121) and the second solid magnetic structure (122) are arranged with the same pole; the winding directions of the first voice coil portion (21) and the second voice coil portion (22) are opposite; and the magnetic poles at opposite ends of the first gravity block (41) and the second gravity block (42) are arranged with the same pole; or, The magnetic poles at the opposite ends of the first solid magnetic structure (121) and the second solid magnetic structure (122) are arranged with opposite poles. The winding directions of the first voice coil part (21) and the second voice coil part (22) are the same. The magnetic poles at the opposite ends of the first gravity block (41) and the second gravity block (42) are arranged with opposite poles.

5. The dual-vibration loudspeaker according to claim 1, characterized in that: The fixing part of the first vibrating plate (31) and the fixing part of the second vibrating plate (32) are respectively fixedly disposed on the fixed magnetic structure (12); or, The outer shell (1) includes a metal cylinder (11), the fixed magnetic structure (12) is disposed on the inner circumference of the metal cylinder (11), and the fixing part of the first vibrating plate (31) and the fixing part of the second vibrating plate (32) are respectively fixedly disposed on the metal cylinder (11).

6. The dual-vibration loudspeaker according to claim 5, characterized in that: The fixed magnetic structure (12) includes a first magnetic structure (121) and a second magnetic structure (122). The first magnetic structure (121) and the second magnetic structure (122) are both arranged in a ring. One magnetic end of the first magnetic structure (121) faces one magnetic end of the second magnetic structure (122).

7. The dual-vibration loudspeaker according to claim 6, characterized in that: It also includes a reinforcing member (5), which includes a reinforcing part (51) and an assembly part (52) surrounding the outer periphery of the reinforcing part (51). The reinforcing part (51) is inserted into the inner periphery of the voice coil structure (2), and the assembly part (52) is disposed between the first solid magnet structure (121) and the second solid magnet structure (122), and is fixedly connected to the first solid magnet structure (121) and the second solid magnet structure (122) respectively.

8. The dual-vibration loudspeaker according to claim 7, characterized in that: The reinforcing part (51) includes a first part (511) and a second part (512) located on both sides of the assembly part (52). The voice coil structure (2) includes a first voice coil part (21) surrounding the outer periphery of the first part (511) and a second voice coil part (22) surrounding the outer periphery of the second part (512). And / or, one end of the voice coil structure (2) is fixedly disposed on the assembly part (52), and / or, the inner periphery of the voice coil structure (2) is fixedly disposed on the outer peripheral wall of the reinforcing part (51).

9. The dual-vibration loudspeaker according to claim 6, characterized in that: The first vibrating plate (31) is disposed on the first solid magnetic structure (121), and the second vibrating plate (32) is disposed on the second solid magnetic structure (122).

10. A bone conduction headphone, characterized in that: Includes the dual-vibration loudspeaker as described in any one of claims 1-9.

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