Super-linear loudspeaker

Abstract

The utility model discloses a superlinear loudspeaker, which belongs to the technical field of loudspeakers, and comprises a shell, an elastic sheet is arranged in the shell, a lower inner magnet and a lower outer magnet are arranged below the elastic sheet, an upper inner magnet and an upper outer magnet are arranged above the elastic sheet, a voice coil is arranged at the bottom of the elastic sheet, an ejector pin is arranged at the top of the elastic sheet, and the end part of the ejector pin penetrates through a washer. And the ejector pin is connected with the diaphragm. According to the utility model, the problems that the frequency response curve of the horn has a plurality of peaks and valleys and the nonlinear distortion becomes high due to segmentation vibration caused by the fact that a voice coil is easy to incline and swing due to overlarge amplitude when the existing horn is driven with high power can be solved. According to the utility model, the elastic sheet is additionally arranged, the voice coil is bonded on the elastic sheet, the elastic sheet and the diaphragm are connected through the ejector pin, the elastic sheet is made of a metal material, the middle of the elastic sheet is hollowed out, the voice coil drives the elastic sheet to vibrate, and linear vibration can be realized even if the amplitude is large, so that the distortion of the loudspeaker is reduced, and the frequency response curve of the loudspeaker is flatter.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a super linear loudspeaker. Background Art

[0002] There are several different types of horns. One type is a wind instrument, thin at the top and thick at the bottom, mostly made of copper; the other type is a modern electro-acoustic component that converts electrical signals into sound, also called a loudspeaker, and can also be used to describe a person who advocates or promotes for others.

[0003] Conventional speakers have voice coils bonded to the diaphragm, which is driven by the voice coil to vibrate the diaphragm up and down. If the speaker is driven at high power, the amplitude is too large, and the voice coil will easily tilt and swing, producing split vibrations. This will cause the speaker's frequency response curve to have many peaks and valleys, and the nonlinear distortion will also become higher. Utility Model Content

[0004] The purpose of the present utility model is to provide a super linear speaker, which increases a spring sheet, bonds a voice coil to the spring sheet, connects the spring sheet and the diaphragm through a pin, and the spring sheet is made of metal with a hollow design in the middle. The voice coil drives the spring sheet to vibrate, and even if the amplitude is large, the vibration will be linear, thereby reducing the distortion of the speaker and making the frequency response curve of the speaker flatter, which can solve the problems in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A superlinear speaker includes a shell, a spring is arranged in the shell, a lower inner magnet and a lower outer magnet are arranged below the spring, an upper inner magnet and an upper outer magnet are arranged above the spring, a voice coil is arranged at the bottom of the spring, and a thimble is arranged at the top of the spring, the end of the thimble passes through a washer, and the thimble is connected to a diaphragm, and the diaphragm is arranged on the top of the shell.

[0007] Preferably, the lower external magnet is located outside the lower inner magnet, and the lower inner magnet and the lower external magnet are fixed to the bottom of the inner side of the shell, wherein the magnetism of the lower inner magnet and the lower external magnet is opposite, and both are magnetism in the Y-axis direction.

[0008] Preferably, the upper outer magnet is located outside the upper inner magnet, and the upper inner magnet and the upper outer magnet are fixed on the washer, wherein the upper inner magnet and the upper outer magnet have opposite magnetic properties and are both magnetic in the Y-axis direction.

[0009] Preferably, the spring piece is composed of an edge support ring and a middle spring piece, the middle spring piece is a hollow structure, and the material of the middle spring piece is SPCC, copper or stainless steel.

[0010] Preferably, the voice coil is flat in shape and is bonded to the spring.

[0011] Preferably, the washer is fixed to the upper end of the inner side of the shell, and a through hole for the ejector pin to pass through is opened at the middle end of the washer. The material of the washer is SPCC, copper or stainless steel.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] After the voice coil of the present invention is energized, it is subjected to the Ampere force generated by the magnetic field to vibrate up and down. Since the voice coil is bonded to the shrapnel, the middle of the shrapnel is connected to the ejector pin, and the other end of the ejector pin is connected to the diaphragm, the up and down vibration of the voice coil can drive the diaphragm to vibrate up and down. By adding the shrapnel and bonding the voice coil to the shrapnel, and connecting the shrapnel and the diaphragm through the ejector pin, and the shrapnel is made of metal with a hollow design in the middle, the voice coil drives the shrapnel to vibrate. Even if the amplitude is large, the vibration will be linear vibration, thereby reducing the distortion of the speaker and making the frequency response curve of the speaker flatter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the super linear speaker of the first embodiment of the present invention;

[0015] Figure 2 This is an exploded view of the super linear speaker according to the first embodiment of the present invention;

[0016] Figure 3 is a cross-sectional view of the super linear speaker according to the first embodiment of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the spring piece according to the first embodiment of the present invention;

[0018] Figure 5 Schematic diagram of the structure of the super linear speaker of the second embodiment of the present invention.

[0019] In the figure: 1. Shell; 2. Spring clip; 21. Edge support ring; 22. Middle spring clip; 3. Lower inner magnet; 4. Lower outer magnet; 5. Upper inner magnet; 6. Upper outer magnet; 7. Voice coil; 8. Ejector pin; 9. Washer; 10. Diaphragm; 11. Vibrating plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] To solve the technical problem that the voice coil of existing speakers is bonded to the diaphragm, and the diaphragm is driven up and down by the voice coil; when the speaker is driven at high power, due to the large amplitude, the voice coil is prone to tilt and swing, resulting in split vibration, which will cause the speaker's frequency response curve to have many peaks and valleys and high nonlinear distortion. Figure 1-Figure 5 , this embodiment provides the following technical solutions:

[0022] Example 1

[0023] A super linear loudspeaker comprises a housing 1.

[0024] Specifically, the housing 1 is used to fix the upper and lower double magnetic circuits, the diaphragm 10 , the spring 2 and other parts. The housing 1 is made of a material with good rigidity such as metal or plastic.

[0025] A spring piece 2 is arranged in the housing 1 .

[0026] Specifically, the spring piece 2 is composed of an edge support ring 21 and an intermediate spring piece 22. The intermediate spring piece 22 is a hollow structure to facilitate vibration. The hollow shape of the intermediate spring piece 22 can be diverse, and different shapes have different vibration amplitudes. The material of the intermediate spring piece 22 is SPCC, copper or stainless steel, which has good rigidity and certain elasticity.

[0027] A lower inner magnet 3 and a lower outer magnet 4 are provided below the spring piece 2 .

[0028] Specifically, the lower external magnet 4 is located outside the lower inner magnet 3, and the lower inner magnet 3 and the lower external magnet 4 are fixed to the bottom inside the shell 1, wherein the lower inner magnet 3 and the lower external magnet 4 have opposite magnetism and are both magnetism in the Y-axis direction.

[0029] An upper inner magnet 5 and an upper outer magnet 6 are provided above the spring piece 2 .

[0030] Specifically, the upper outer magnet 6 is located outside the upper inner magnet 5 , and the upper inner magnet 5 and the upper outer magnet 6 are fixed on the washer 9 , wherein the upper inner magnet 5 and the upper outer magnet 6 have opposite magnetic properties and are both magnetic in the Y-axis direction.

[0031] It should be noted that the lower inner magnet 3 and the lower outer magnet 4 constitute the lower magnetic circuit, and the upper inner magnet 5 and the upper outer magnet 6 constitute the upper magnetic circuit. The superlinear speaker can be an upper and lower dual magnetic circuit, or it can have only a lower magnetic circuit, wherein the magnetic properties of the lower inner magnet 3 and the lower external magnet 4 are opposite, and the magnetic properties of the upper inner magnet 5 and the upper external magnet 6 are opposite, and both are magnetic in the Y-axis direction, and the magnetic properties of the upper and lower dual magnetic circuits are opposite, the lower magnetic circuit is fixed at the bottom of the shell 1, and the upper magnetic circuit is fixed above the spring 2.

[0032] A voice coil 7 is provided at the bottom of the shrapnel 2 .

[0033] Specifically, the voice coil 7 is flat in shape and is bonded to the spring 2 , wherein the voice coil 7 is placed between the upper magnetic circuit and the lower magnetic circuit.

[0034] A thimble 8 is provided on the top of the spring piece 2 , the end of the thimble 8 passes through the washer 9 , and the thimble 8 is connected to the diaphragm 10 .

[0035] Specifically, the ejector pin 8 is used to fix the spring 2 and the diaphragm 10 , and can be bonded with glue or laser welded. The ejector pin 8 is made of a material with good rigidity, such as metal or plastic.

[0036] Specifically, the washer 9 is fixed at the upper end of the inner side of the shell 1, and the washer 9 is used to fix the upper magnetic circuit. A through hole for the ejector pin 8 to pass through is opened at the middle end of the washer 9. The material of the washer 9 is SPCC, copper or stainless steel, which has good rigidity and is not easy to deform.

[0037] The diaphragm 10 is arranged on the top of the housing 1 .

[0038] Specifically, the diaphragm 10 is composed of a support ring and a film. The shape of the diaphragm 10 can be a folded ring at the edge or a flat structure. It is made of polymer materials such as polyethylene terephthalate / polyetheretherketone / polyurethane, has a certain elasticity, and is easy to vibrate.

[0039] It should be noted that after the voice coil 7 is energized, the voice coil 7 is subjected to the Ampere force of the magnetic field to vibrate up and down. Since the voice coil 7 is bonded to the shrapnel 2, the middle of the shrapnel 2 is connected to the ejector pin 8, and the other end of the ejector pin 8 is connected to the diaphragm 10, the up and down vibration of the voice coil 7 can drive the diaphragm 10 to vibrate up and down. By adding the shrapnel 2 and bonding the voice coil 7 to the shrapnel 2, the shrapnel 2 and the diaphragm 10 are connected by the ejector pin 8, and the shrapnel 2 is made of metal with a hollow design in the middle, the voice coil 7 drives the shrapnel 2 to vibrate. Even if the amplitude is large, the vibration will be linear, thereby reducing the distortion of the speaker and making the frequency response curve of the speaker flatter.

[0040] Example 2

[0041] The difference from the first embodiment is that the diaphragm 10 is replaced by a vibration plate 11 , and the other structures are the same.

[0042] That is, one end of the ejector pin 8 is connected to the spring piece 2, and the other end of the ejector pin 8 is connected to the vibration plate 11. The vibration plate 11 can be connected to the ear shell to vibrate and produce sound.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A super linear loudspeaker, comprising a housing (1), characterized in that: A spring (2) is provided in the shell (1), a lower inner magnet (3) and a lower outer magnet (4) are provided below the spring (2), an upper inner magnet (5) and an upper outer magnet (6) are provided above the spring (2), a voice coil (7) is provided at the bottom of the spring (2), a thimble (8) is provided at the top of the spring (2), an end of the thimble (8) passes through a washer (9), and the thimble (8) is connected to a diaphragm (10), and the diaphragm (10) is provided at the top of the shell (1).

2. The super linear speaker according to claim 1, characterized in that: The lower external magnet (4) is located outside the lower internal magnet (3), and the lower internal magnet (3) and the lower external magnet (4) are fixed to the bottom of the inner side of the shell (1), wherein the magnetism of the lower internal magnet (3) and the lower external magnet (4) are opposite, and both are magnetism in the Y-axis direction.

3. The super linear speaker according to claim 1, characterized in that: The upper outer magnet (6) is located outside the upper inner magnet (5), and the upper inner magnet (5) and the upper outer magnet (6) are fixed on the washer (9), wherein the upper inner magnet (5) and the upper outer magnet (6) have opposite magnetic properties and are both magnetic in the Y-axis direction.

4. The super linear speaker according to claim 1, characterized in that: The spring piece (2) is composed of an edge support ring (21) and a middle spring piece (22), and the middle spring piece (22) is a hollow structure.

5. The super linear speaker according to claim 1, characterized in that: The voice coil (7) is flat in shape, and is bonded to the spring sheet (2).

6. The super linear speaker according to claim 1, characterized in that: The washer (9) is fixed to the upper end of the inner side of the shell (1), and a through hole for the ejector pin (8) to pass through is provided at the middle end of the washer (9).

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