High-fidelity loudspeaker with small aperture and large voice coil and high-fidelity ultrathin sound equipment

Abstract

The invention provides a small-caliber large-size high-fidelity loudspeaker and a high-fidelity ultrathin sound box, the small-caliber large-size high-fidelity loudspeaker comprises a basin frame, the basin frame is provided with a driving assembly, a washer and a sound basin, the washer is provided with a vibration mechanism, the vibration mechanism comprises a damper and a dustproof cap, an accommodating groove is arranged above the washer, the damper is arranged in the accommodating groove, and the dustproof cap is arranged in the accommodating groove. U iron of the driving assembly is arranged on the outer side of the washer, a containing cavity is formed between the U iron and the washer, a voice coil is arranged in the containing cavity, a limiting column is arranged on the damper, the limiting column is connected with the dustproof cap, one end of the voice cone is connected with the dustproof cap and one end of the voice coil, and the other end of the voice cone is connected with the cone frame. After the limiting column is installed on the dustproof cap and the damper, the damper is in a natural extension state, the tone quality is improved, and the reliability of vertical movement of the damper can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of high-fidelity ultra-thin speakers, and in particular to a high-fidelity speaker with a small-caliber and large voice coil and a high-fidelity ultra-thin speaker. Background Art

[0002] With the continuous development of social economy, the use scenarios of audio equipment are becoming more and more frequent, and the requirements for sound quality are also increasing. For audio equipment, speakers, as the main sound-generating device, play a key role in sound quality. In speaker audio output devices, elastic waves are usually provided to keep the voice coil in a preset position. Elastic waves are also crucial for the propagation of sound.

[0003] For example, the patent document with patent application number 202123266313.6 and announcement date 2022.09.23 discloses an anti-bottom-collision spring wave support for a dynamic vehicle-mounted speaker, comprising a lower support ring and an upper support ring, wherein the upper support ring is sleeved on the lower support ring, the inner wall of the lower support ring is bonded to the voice coil, and the neck of the spring wave is fixed between the lower support ring and the upper support ring; a plurality of elastic clamping columns are integrally formed at the bottom of the upper support ring, and the plurality of elastic clamping columns are arranged in a circular array, and a connecting flange is integrally formed at the bottom of the lower support ring, and a plurality of clamping holes are provided on the connecting flange, and the clamping holes are also arranged in a circular array, and a plurality of through holes for the elastic clamping columns to pass through are also provided on the neck of the spring wave, and the upper support ring, the spring wave and the lower support ring are clamped by the elastic clamping columns; the spring wave support can reduce the vibration area of ​​the spring wave, thereby controlling the movement amplitude of the voice coil, and can avoid the occurrence of the voice coil hitting the bottom.

[0004] In the above documents, a lower supporting ring is arranged on the upper surface of the spring, and an upper supporting ring is arranged on the lower surface of the spring. The upper supporting ring, the spring and the lower supporting ring are connected by elastic clamping columns to limit the movement amplitude of the spring. Since the connection area between the spring and the upper supporting ring and the lower supporting ring is small, the voice coil is arranged on the four sides of the bottom of the spring. The length of the spring will limit the cross-sectional size of the voice coil, and the cross-sectional area of ​​the voice coil will affect the magnetic flux of the voice coil and thus affect the driving force of the voice coil, thereby affecting the low-frequency response performance of the speaker. In addition, when the upper supporting ring and the lower supporting ring are connected to the spring, the outer periphery of the spring may be deformed due to its own gravity. When the spring is running, it needs to overcome its own gravity before it can run normally. Therefore, it may cause the spring to run lagging and respond slowly to the audio signal, thereby affecting the transmission speed of the sound and increasing the possibility of distortion. Summary of the invention

[0005] The present invention provides a high-fidelity loudspeaker with a small-diameter and large voice coil and a high-fidelity ultra-thin sound system, which improves the sound quality and can ensure the reliability of the up-and-down movement of the elastic wave.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a high-fidelity speaker with a small diameter and a large voice coil, including a basin frame, on which a driving component, a washer and a sound basin are arranged, a vibration mechanism is arranged on the washer, and the vibration mechanism includes a spring and a dust cap, a receiving groove is arranged above the washer, and the spring is arranged in the receiving groove, a U iron of the driving component is arranged on the outer side of the washer, a receiving cavity is arranged between the U iron and the washer, and a voice coil is arranged in the receiving cavity, a limiting column is arranged on the spring, and the limiting column is connected to the dust cap, a through hole is arranged in the middle of the spring, and the limiting column is provided with a limiting portion, and the lower surface of the limiting portion It is connected with the elastic wave through the through hole, a through hole is set in the middle of the dust cap, the limiting column passes through the through hole and the through hole, and the lower surface of the limiting protrusion is connected with the upper surface of the dust cap, one end of the sound basin is connected with the dust cap and one end of the voice coil, and the other end of the sound basin is connected with the basin frame. The pressure F1 between the limiting part and the elastic wave is determined according to the formula: 2*F2*cosA=g1+g2+g3+F1, F2 is the pulling force of the dust cap on the limiting part, the dust cap gravity g1, the limiting column and the limiting part gravity g2 and the elastic wave gravity g3, the limiting column is installed after the dust cap and the elastic wave, and the elastic wave is in a natural extension state.

[0007] In the above arrangement, a spring wave is arranged on the washer, a limiting column is arranged on the spring wave, the limiting column and the limiting part are connected with the dust cap, so that no external deformation will occur after the limiting column is installed on the spring wave, the pulling force of the dust cap on the limiting column can bear the force balance relationship between the limiting part, the spring wave and the gravity of the dust cap and the pressure between the limiting column and the spring wave, control the pressure between the limiting column and the spring wave, prevent the limiting part and the spring wave from being installed too tightly or too loosely, so that the pressure of the limiting part on the spring wave is too large, so that the spring wave is not in a natural extension state after the limiting part is installed, and when the spring wave is in a natural extension state after the limiting part is installed, it can When the subsequent voice coil driving force acts on the spring wave, the spring wave can vibrate up and down quickly, thereby preventing the spring wave from responding too slowly and causing the sound quality to deteriorate. At the same time, the voice coil cannot quickly return to a balanced state when the driving force is applied, thereby ensuring the reliability of the sound quality. In addition, since the spring wave is arranged in the receiving groove of the washer, and the voice coil is then arranged in the cavity between the washer and the U-iron, since the spring wave is arranged in the receiving groove of the washer, the thickness of the voice coil will not be limited by the spring wave, so that a thicker voice coil can be arranged under a speaker of the same caliber, so that the voice coil has a larger magnetic flux and can have a stronger driving force, thereby ensuring a better pronunciation effect.

[0008] Furthermore, the driving assembly also includes a magnet component, the U iron is provided with a magnet component, and a washer is provided on the magnet component.

[0009] In the above arrangement, a U-iron is placed on the basin frame, a voice coil is placed between the U-iron and the side of the basin frame, the upper end of the voice coil is connected to the dust cap, and the voice coil is directly connected to the dust cap without connecting the elastic wave to the voice coil, which makes the internal structure of the speaker more compact and helps to reduce the size of the speaker.

[0010] Furthermore, the cross-sectional area of ​​the inner side wall of the voice coil is larger than the cross-sectional area of ​​the elastic wave.

[0011] With the above settings, in speakers of the same size, a voice coil with a larger cross-sectional area helps to improve the low-frequency response. A voice coil with a larger cross-sectional area can produce a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and restoration of sound quality. A voice coil with a larger cross-sectional area can match a larger magnet, making the magnet have a larger cross-sectional area. As the cross-sectional area of ​​the magnet increases, the height of the magnet can be reduced to obtain a magnet of the same volume. Therefore, the speaker structure can be made thinner than that of the same size.

[0012] Furthermore, the installation process of the limit column and the limit part includes the following steps: S1 determines the gravity g1 of the dust cap, the gravity g2 of the limit column and the limit part, and the gravity g3 of the elastic wave; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the basin frame through a force measuring device to measure the pulling force F2 of the dust cap on the limit part, and then sets a pressure measuring device between the limit part and the dust cap to measure the pressure F1 between the limit part and the elastic wave; S3 fixes the limit part on the dust cap, gradually lowers it and installs it in the through hole and the through hole, determines the pressure F1 between the limit column and the spring wave and the pressure F1 between the limit part and the spring wave when the spring wave is in a natural extension state; records the current installation position of the limit column on the dust cap and the installation position of the dust cap; S4 installs another limiting column according to the installation position of the limiting column on the dust cap and the installation position of the dust cap.

[0013] With the above arrangement, when the elastic wave is in a naturally extended state after the installation of a limit column, the pulling force F2 of the dust cap on the limit part and the pressure F1 between the limit part and the elastic wave are recorded, and the length of the current limit column entering the dust cap and the inclination angle of the dust cap are recorded. Subsequently, the limit column is installed in another speaker in this way to ensure that the elastic wave is in a naturally extended state, so that the installation can be carried out more quickly.

[0014] Furthermore, the accommodating groove is recessed downward from the top of the washer.

[0015] In the above arrangement, the receiving groove is recessed from top to bottom, so that the elastic wave can be arranged in the receiving groove.

[0016] On the other hand, the present invention further provides a high-fidelity ultra-thin audio system, comprising a box body, a mounting groove is provided at the center of the box body, a top cover is provided above the mounting groove, a cavity is formed between the mounting groove and the top cover, a high-fidelity speaker is installed in the cavity, the high-fidelity speaker is arranged through the top cover, a sound outlet is provided on one side of the box body, the high-fidelity speaker comprises a basin frame, a driving assembly and a washer and a sound basin are provided on the basin frame, a vibration mechanism is provided on the washer, the vibration mechanism comprises a spring and a dust cap, a receiving groove is provided above the washer, the spring is provided in the receiving groove, a U-iron of the driving assembly is provided on the outer side of the washer, a cavity is provided between the U-iron and the sound basin, a voice coil is provided in the cavity, a limiting column is provided on the spring, and the limiting column is connected to the dust cap, A through hole is set in the middle of the elastic wave, and a limiting part is set on the limiting column. The lower surface of the limiting part passes through the through hole and is connected with the elastic wave. A through hole is set in the middle of the dust cap. The limiting part includes a limiting column and a limiting protrusion. The limiting column passes through the through hole and the through hole, and the lower surface of the limiting protrusion is connected with the upper surface of the dust cap. One end of the sound basin is connected to the dust cap and one end of the voice coil, and the other end of the sound basin is connected to the basin frame. The pressure F1 between the limiting column and the elastic wave is determined according to the formula: 2*F2*cosA=g1+g2+g3+F1, F2 is the pulling force of the dust cap on the limiting column, the dust cap gravity g1, the limiting column gravity g2 and the elastic wave gravity g3, and the limiting column is installed after the dust cap and the elastic wave, and the elastic wave is in a natural elongation state.

[0017] In the above arrangement, a low-frequency speaker is placed in the mounting groove of the box, so that the overall size of the speaker will not be too large, and because a top cover is arranged on the mounting groove, a cavity is formed between the top cover and the mounting groove, so that the sound emitted from the front of the low-frequency speaker is normally output from the top of the speaker, while the sound emitted from the back of the low-frequency speaker is mixed in the cavity and then output from one side of the box. A spring wave is arranged on the washer, and a limiting portion is arranged on the spring wave, and the limiting portion is connected to the dust cap. In order to prevent external deformation after the limiting column is installed on the spring wave, the pulling force of the dust cap on the limiting column can bear the force balance relationship between the limiting portion, the spring wave and the gravity of the dust cap and the pressure between the limiting column and the spring wave, so as to control the pressure between the limiting column and the spring wave, and prevent the limiting portion and the spring wave from being installed too tight or too loose, thereby making the limiting portion The pressure of the limiting part on the spring wave is too great, so that the spring wave is not in a natural extension state after the limiting part is installed. When the spring wave is in a natural extension state after the limiting part is installed, the spring wave can quickly vibrate up and down when the subsequent voice coil driving force acts on the spring wave, thereby preventing the spring wave from responding too slowly and causing the sound quality to deteriorate. At the same time, it also makes the voice coil unable to quickly return to a balanced state when the driving force is applied, thereby ensuring the reliability of the sound quality. In addition, since the spring wave is arranged in the receiving groove of the washer, and the voice coil is then arranged in the cavity between the washer and the U iron, since the spring wave is arranged in the receiving groove of the washer, the thickness of the voice coil will not be limited by the spring wave, so that a thicker voice coil can be arranged under a speaker of the same caliber, so that the voice coil has a larger magnetic flux and can have a stronger driving force, thereby ensuring a better pronunciation effect.

[0018] Furthermore, a sound guide channel is provided on one side of the cavity, a sound inlet is provided at one end of the sound guide channel, and the other end of the sound guide channel is connected to the sound outlet; a baffle is provided in the sound guide channel, one end of the baffle is connected to the inner wall of the box near one end of the sound inlet, and the other end of the baffle is extended to the other end of the box.

[0019] The above arrangement, by providing a sound guide channel between the sound outlet on one side and the cavity, allows the mixed sound in the cavity to be guided through the sound guide channel and then output from the side, thereby ensuring the quality of the output sound.

[0020] Furthermore, the driving assembly also includes a magnet component, the U iron is provided with a magnet component, and a washer is provided on the magnet component.

[0021] In the above arrangement, a U-iron is placed on the basin frame, a voice coil is placed between the U-iron and the side of the basin frame, the upper end of the voice coil is connected to the dust cap, and the voice coil is directly connected to the dust cap without connecting the elastic wave to the voice coil, which makes the internal structure of the speaker more compact and helps to reduce the size of the speaker.

[0022] Furthermore, the cross-sectional area of ​​the inner side wall of the voice coil is larger than the cross-sectional area of ​​the elastic wave.

[0023] With the above settings, in speakers of the same size, a voice coil with a larger cross-sectional area helps to improve the low-frequency response. A voice coil with a larger cross-sectional area can produce a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and restoration of sound quality. A voice coil with a larger cross-sectional area can match a larger magnet, making the magnet have a larger cross-sectional area. As the cross-sectional area of ​​the magnet increases, the height of the magnet can be reduced to obtain a magnet of the same volume. Therefore, the speaker structure can be made thinner than that of the same size.

[0024] Furthermore, the installation process of the limiting column and the limiting protrusion includes the following steps: S1 determines the dust cap gravity g1, the limit column gravity g2 and the elastic wave gravity g3; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the basin frame through a force measuring device to measure the pulling force F2 of the dust cap on the limit column, and then sets a pressure measuring device between the limit protrusion and the dust cap to measure the pressure F1 between the limit column and the elastic wave; S3 fixes the limit part on the dust cap, gradually lowers it and installs it in the through hole and the perforation, determines the pressure F1 between the limit column and the spring wave and the pressure F1 between the limit column and the spring wave when the spring wave is in the natural extension state; records the current installation position of the limit column on the dust cap and the installation position of the dust cap; S4 installs another limiting column according to the installation position of the limiting column on the dust cap and the installation position of the dust cap.

[0025] With the above settings, after a limit column is installed, when the elastic wave is in a natural extension state, the pulling force F2 of the dust cap on the limit column and the pressure F1 between the limit column and the elastic wave are recorded, and the length of the current limit column entering the dust cap and the inclination angle of the dust cap are recorded. Subsequently, the limit column is installed in another speaker in this way to ensure that the elastic wave is in a natural extension state, so that the installation can be carried out more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of the speaker in the present invention.

[0027] Figure 2 It is the front view of the limiting column in the present invention.

[0028] Figure 3 It is an exploded view of the present invention.

[0029] Figure 4 It is the front view of the spring in the present invention.

[0030] Figure 5 It is a connection diagram of the speaker in the present invention.

[0031] Figure 6 It is a schematic diagram of the structure of the sound system in the present invention.

[0032] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0033] Figure 8 for Figure 6 Enlarged view of point B in the middle.

[0034] Explanation of the accompanying numbers: 1-dust cap; 2-limiting column; 21-limiting part; 3-sound basin; 4-bass frame; 5-U iron; 6-magnet; 7-washer; 71-accommodating groove; 8-voice coil; 9-accommodating cavity; 10-elastic wave; 11-mounting groove; 12-top cover; 121-mounting hole; 13-cavity; 131-mounting column; 14-sound guide channel; 141-baffle; 142-sound inlet; 15-tweeter; 16-accommodating cavity; 161-microphone; 17-raised part; 18-mounting surface; 19-mounting hole. DETAILED DESCRIPTION

[0035] Example 1.

[0036] like Figure 1-5 As shown, a high-fidelity speaker with a small diameter and a large voice coil comprises a basin frame 4, on which a driving assembly and a washer 7 and a sound basin are arranged, on which a vibration mechanism is arranged, the vibration mechanism comprises a spring 10 and a dust cap 1, a receiving groove 71 is arranged above the washer 7, and the spring 10 is arranged in the receiving groove 71, a U iron 5 of the driving assembly is arranged on the outer side of the washer 7, a receiving cavity 9 is arranged between the U iron 5 and the washer 7, a voice coil 8 is arranged in the receiving cavity 9, a limiting column 2 is arranged on the spring 10, the limiting column 2 is connected to the dust cap 1, a through hole is arranged in the middle of the spring 10, a limiting portion 21 is arranged on the limiting column 2, and the lower surface of the limiting portion 21 passes through the through hole and is connected to the spring 10, a through hole is arranged in the middle of the dust cap 1, and the limiting portion 21 The upper surface is connected to the dust cap 1 through a through hole, and the driving assembly includes a voice coil 8, a magnet 6 and a U iron 5. The voice coil 8 is arranged between the U iron 5 and the washer 7, and the lower surface of the limiting portion 21 is connected to the upper surface of the dust cap 1, one end of the sound basin 3 is connected to the dust cap 1 and one end of the voice coil 8, and the other end of the sound basin 3 is connected to the basin frame 4. The pressure F1 between the limiting portion 21 and the elastic wave 10 is determined according to the formula: 2*F2*cosA=g1+g2+g3+F1, F2 is the pulling force of the dust cap 1 on the limiting portion 21, the gravity of the dust cap 1 g1, the gravity of the limiting column and the limiting portion g2 and the gravity of the elastic wave 10 g3, the limiting column 2 is installed after the dust cap 1 and the elastic wave 10, and the elastic wave is in a natural extension state.

[0037] In this embodiment, the accommodating groove 71 is recessed downward from the top of the washer 7 , and the limiting portion 21 is protruded outward from the limiting column 2 .

[0038] The installation process of the limiting column 2 and the limiting portion 21 includes the following steps: S1 determines the gravity g1 of the dust cap 1, the gravity g2 of the limiting column 1 and the limiting portion 21, and the elastic wave gravity g3; S2 fixes the bottom of the voice coil 8 in the accommodating groove 71, connects the two sides of the dust cap 1 to the basin frame 4 through a force measuring device to measure the pulling force F2 of the dust cap 1 on the limiting part, and then sets a pressure measuring device between the limiting part 21 and the dust cap 1 to measure the pressure F1 between the limiting part 21 and the damper 10; at the same time, measures the angle between the dust cap and the axis of the limiting column; S3 fixes the limiting part 21 on the dust cap 1, gradually lowers it and installs it in the through hole and the perforation, determines the pressure F1 between the limiting column 2 and the damping wave 10 and the pressure F1 between the limiting part 21 and the damping wave 10 when the damping wave 10 is in a naturally extended state; records the current installation position of the limiting column 2 on the dust cap 1 and the installation position of the dust cap 1; S4 installs another limiting column 2 according to the installation position of the limiting column 2 on the dust cap 1 and the installation position of the dust cap 1. In this embodiment, the force measuring device is a force gauge, and the pressure measuring device is a pressure sensor.

[0039] like Figure 2-4 As shown, a magnet 6 is placed on the U-iron 5, a cavity 9 is set between the U-iron 5 and the magnet 6 and the side of the basin frame 4, the voice coil 8 can be placed in the cavity 9, the upper end of the voice coil 8 is connected to the dust cap 1, the U-iron 5 is placed on the basin frame 4, the voice coil 8 is placed between the U-iron 5 and the side of the basin frame 4, the upper end of the voice coil 8 is connected to the dust cap 1, the voice coil 8 is directly connected to the dust cap 1, and there is no need to connect the elastic wave 10 to the voice coil 8, so that the internal structure of the speaker is more compact, which helps to reduce the volume of the speaker.

[0040] The basin frame 4 is connected to one end of the sound cone 3, and the other end of the sound cone 3 is connected to the dust cap 1 and the upper end of the voice coil 10. The firm connection between the basin frame 4 and the sound cone 3 can reduce unnecessary deformation of the sound cone 3 during vibration, and the connection between the voice coil 8 and the dust cap 1 corresponds to the connection between the sound cone 3 and the dust cap 1, so that the voice coil 8 is connected to the dust cap 1 and the sound cone 3. The voice coil 8 acts on the dust cap 1 and the sound cone 3, which can generate a stronger driving force, allowing the sound cone 3 to vibrate in a larger range.

[0041] The cross-sectional area of ​​the inner wall of the voice coil 8 is larger than that of the elastic wave 10. In speakers of the same size, a voice coil 8 with a larger cross-sectional area helps to improve the low-frequency response. A voice coil 8 with a larger cross-sectional area can produce a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and restoration of sound quality. A voice coil 8 with a larger cross-sectional area can match a larger magnet component 6, making the cross-sectional area of ​​the magnet component 6 larger. As the cross-sectional area of ​​the magnet component 6 increases, the height of the magnet component 6 can be reduced to obtain a magnet component 6 of the same volume. Therefore, the speaker structure can be made thinner than that of the same size.

[0042] The working principle of the present invention is as follows: a spring wave 10 is arranged on the washer 7, a limiting column is arranged on the spring wave 10, and the limiting column is connected to the dust cap 1. In order to prevent the limiting column from being placed on the spring wave 10 and causing no external deformation, a limiting column 2 is arranged on the spring wave 10, and the limiting column 2 and the limiting portion 21 are connected to the dust cap 1. In order to prevent the spring wave 10 from being externally deformed after the limiting column 2 is installed on the spring wave 10, the pulling force of the dust cap 1 on the limiting column 2 can bear the force balance relationship between the limiting portion 21, the spring wave 10 and the gravity of the dust cap 1 and the pressure between the limiting column 2 and the spring wave 10, control the pressure between the limiting column 2 and the spring wave 10, prevent the limiting portion 21 and the spring wave 10 from being installed too tight or too loose, so that the limiting portion 21 puts too much pressure on the spring wave 10, thereby preventing the spring wave 10 from being installed after the limiting portion 21 is installed. 0 is not in a natural extension state, and when the limiting portion 21 is installed, the spring wave is in a natural extension state, so that when the subsequent voice coil driving force acts on the spring wave 10, the spring wave 10 can quickly vibrate up and down, thereby preventing the spring wave 10 from responding too slowly and causing the sound quality to deteriorate, and at the same time, the voice coil 8 can not quickly return to a balanced state when the driving force is applied, thereby ensuring the reliability of the sound quality. In addition, since the spring wave 10 is arranged in the accommodating groove 71 of the washer 7, and the voice coil 8 is then arranged in the cavity 9 between the washer 7 and the U iron 5, since the spring wave 10 is arranged in the accommodating groove 71 of the washer, the thickness of the voice coil 8 will not be limited by the spring wave 10, so that a thicker voice coil 8 can be arranged under the speaker of the same caliber, so that the voice coil 8 has a larger magnetic flux and can have a stronger driving force, thereby ensuring a better pronunciation effect.

[0043] Example 2.

[0044] like Figure 1-7 The present invention provides a high-fidelity ultra-thin audio system, including a box body 1, a mounting groove 11 is provided at the center of the box body, a top cover 12 is provided above the mounting groove 11, a cavity 13 is formed between the mounting groove 11 and the top cover 12, a high-fidelity speaker 2 is installed in the cavity 13, and the structure of the low-frequency speaker 2 is set as shown in Example 1.

[0045] like Figure 6 and Figure 7As shown, a sound guide channel 14 is provided on one side of the cavity 13, a sound inlet 142 is provided at one end of the sound guide channel 14, and the other end of the sound guide channel 14 is connected to the sound outlet 15; a baffle 141 is provided in the sound guide channel 14, one end of the baffle 141 is connected to the inner wall of the box body near one end of the sound inlet 142, and the other end of the baffle 141 is extended to the other end of the box body 1. In this embodiment, two baffles 141 are provided on the sound guide channel 14, one end of one baffle 141 is connected to one side wall of the box body 1, and one end of the other baffle 141 is connected to the other side wall of the box body 1, and the two baffles 141 are arranged in parallel at intervals, and one side wall of the box body 1 is arranged opposite to the other side wall of the box body 1. The two baffles 141 form the sound guide channel 14 into an S-shaped channel, thereby lengthening the length of the sound guide channel.

[0046] In this embodiment, the high-fidelity speaker 2 is a low-frequency speaker, a mounting column 131 is provided in the cavity 13, a mounting hole 121 for the high-fidelity speaker 2 to pass through is provided on the top cover 12, a fixing hole corresponding to the mounting column 131 is provided on the top cover 12, the high-fidelity speaker 2 passes through the mounting hole 121 and is installed by fixing screws passing through the fixing holes and the mounting columns. The high-fidelity speaker 2 is located in the middle of the cavity 13, and tweeters 15 are provided on both sides of the high-fidelity speaker 2 in the cavity.

[0047] like Figure 7 As shown, a receiving cavity 16 for receiving a microphone 151 is provided on one side of the box body 1 away from the cavity 13. The arrangement of the receiving cavity 16 facilitates storage of the microphone.

[0048] like Figure 7 As shown, a protrusion 17 is provided on one side of the accommodating cavity 16 close to the outer wall of the box body 1, and the protrusion 17 is extended to the other side of the accommodating cavity 16, and the hand-held part of the microphone 161 is clamped between the protrusion 17 and the other side of the accommodating cavity 16. The provision of the protrusion 17 enables the hand-held part of the microphone 161 to be clamped to prevent the microphone 161 from shaking during the process of carrying and transportation.

[0049] like Figure 8 As shown, a mounting surface 18 is provided at the top of the raised portion 17, and a mounting hole 19 is provided on the mounting surface 18. A shell (not shown in the figure) is provided on the box body 1, and the shell is connected to the box body 1 through a hinge to facilitate opening and closing the box body. The fixed end of the hinge is connected to the mounting hole 19 through a screw (not shown in the figure), and the movable end of the hinge is connected to the shell. By providing the mounting surface 18 on the raised portion 17, on the one hand, the hinge can be installed to save space, and on the other hand, the raised portion 17 can limit the position of the microphone 161.

[0050] The working principle of the present invention is as follows: a high-fidelity speaker 2 is arranged on the box 1 of the sound system, and the sound emitted from the bottom of the high-fidelity speaker is mixed in the cavity, and then the sound is guided through the cavity through the sound guide channel and then emitted from the side of the box 1, thereby extending the sound channel, making the pronunciation better mixed, and improving the pronunciation quality. A spring wave 10 is arranged on the washer 7, and a limiting column is arranged on the spring wave 10, and the limiting column is connected to the dust cap 1. In order to prevent the spring wave 10 from being externally deformed when the limiting column is placed on it, a limiting column 2 is arranged on the spring wave 10, and the limiting column 2 and the limiting part 21 are connected to the dust cap 1. In order to prevent the spring wave 10 from being externally deformed after the limiting column 2 is installed on the spring wave 10, the pulling force of the dust cap 1 on the limiting column 2 can bear the force balance relationship between the limiting part 21, the spring wave 10 and the gravity of the dust cap 1 and the pressure between the limiting column 2 and the spring wave 10, and the pressure between the limiting column 2 and the spring wave 10 is controlled to prevent the limiting part 21 and the spring wave 1 from being deformed. 0 is installed too tightly or too loosely, so that the limit part 21 exerts too much pressure on the damper 10, so that the damper 10 is not in a natural extension state after the limit part 21 is installed. When the damper 10 is in a natural extension state after the limit part 21 is installed, the damper 10 can quickly vibrate up and down when the subsequent voice coil driving force acts on the damper 10, thereby preventing the damper 10 from responding too slowly and causing the sound quality to deteriorate. At the same time, it also prevents the voice coil 8 from quickly returning to a balanced state when the driving force is applied, thereby ensuring the reliability of the sound quality. In addition, since the damper 10 is arranged in the accommodating groove 71 of the washer 7, and then the voice coil 8 is arranged in the cavity 9 between the washer 7 and the U iron 5, since the damper 10 is arranged in the accommodating groove 71 of the washer, the thickness of the voice coil 8 will not be limited by the damper 10, so that a thicker voice coil 8 can be arranged under the speaker of the same caliber, so that the voice coil 8 has a larger magnetic flux and can have a stronger driving force, thereby ensuring a better pronunciation effect.

Claims

1. A high-fidelity speaker with a small diameter and a large voice coil, comprising a basin frame, a driving assembly, a washer, and a sound basin are arranged on the basin frame, and a vibration mechanism is arranged on the washer, and the vibration mechanism includes a spring and a dust cap, characterized in that: A receiving groove is arranged above the washer, and a spring is arranged in the receiving groove. A U iron of a driving assembly is arranged on the outer side of the washer, and a receiving cavity is arranged between the U iron and the washer, and a voice coil is arranged in the receiving cavity. A limiting column is arranged on the spring, and the limiting column is connected with a dust cap. A through hole is arranged in the middle of the spring, and a limiting part is arranged on the limiting column. The lower surface of the limiting part passes through the through hole and is connected with the spring. A through hole is arranged in the middle of the dust cap, and the limiting column passes through the through hole and the through hole, and the limiting The lower surface of the protrusion is connected to the upper surface of the dust cap, one end of the sound basin is connected to the dust cap and one end of the voice coil, and the other end of the sound basin is connected to the basin frame. The pressure F1 between the limit part and the elastic wave is determined according to the formula: 2*F2*cosA=g1+g2+g3+F1, F2 is the pulling force of the dust cap on the limit part, the gravity of the dust cap is g1, the gravity of the limit column and the limit part is g2, and the gravity of the elastic wave is g3. The limit column is installed after the dust cap and the elastic wave, and the elastic wave is in a natural extension state.

2. A high-fidelity speaker with a small diameter and a large voice coil according to claim 1, characterized in that: The driving assembly also includes a magnet component, the U iron is provided with a magnet component, and a washer is provided on the magnet component.

3. A high-fidelity speaker with a small diameter and a large voice coil according to claim 1, characterized in that: The cross-sectional area of ​​the inner wall of the voice coil is larger than the cross-sectional area of ​​the elastic wave.

4. The high-fidelity speaker with a small diameter and a large voice coil according to claim 1, characterized in that: The installation process of the limit column and the limit part includes the following steps: S1 determines the gravity g1 of the dust cap, the gravity g2 of the limit column and the limit part, and the gravity g3 of the elastic wave; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the basin frame through a force measuring device to measure the pulling force F2 of the dust cap on the limit part, and then sets a pressure measuring device between the limit part and the dust cap to measure the pressure F1 between the limit part and the elastic wave; S2 fixes the limit part on the dust cap, gradually lowers it and installs it in the through hole and the perforation, determines the pressure F1 between the limit column and the spring wave and the pressure F1 between the limit part and the spring wave when the spring wave is in the natural extension state; records the current installation position of the limit column on the dust cap and the installation position of the dust cap; S3 installs another limiting column according to the installation position of the limiting column on the dust cap and the installation position of the dust cap.

5. The high-fidelity speaker with a small diameter and a large voice coil according to claim 1, characterized in that: The receiving groove is recessed downward from the top of the washer.

6. A high-fidelity ultra-thin speaker, comprising a box, characterized in that: A mounting groove is provided at the center of the box body, a top cover is provided above the mounting groove, a cavity is formed between the mounting groove and the top cover, a high-fidelity speaker is installed in the cavity, the high-fidelity speaker is arranged through the top cover, a sound outlet is provided on one side of the box body, the high-fidelity speaker includes a basin frame, a driving assembly, a washer and a sound basin are provided on the basin frame, a vibration mechanism is provided on the washer, the vibration mechanism includes a spring and a dust cap, a containing groove is provided above the washer, the spring is provided in the containing groove, a U iron of the driving assembly is provided on the outer side of the washer, a cavity is provided between the U iron and the sound basin, a voice coil is provided in the cavity, a limiting column is provided on the spring, the limiting column is connected to the dust cap, a through hole is provided in the middle of the spring, The limiting column is provided with a limiting part, and the lower surface of the limiting part is connected with the elastic wave through the through hole. The middle part of the dust cap is provided with a through hole. The limiting part includes a limiting column and a limiting protrusion. The limiting column passes through the through hole and the through hole, and the lower surface of the limiting protrusion is connected with the upper surface of the dust cap. One end of the sound basin is connected with the dust cap and one end of the voice coil, and the other end of the sound basin is connected with the basin frame. The pressure F1 between the limiting column and the elastic wave is determined according to the formula: 2*F2*cosA=g1+g2+g3+F1, F2 is the pulling force of the dust cap on the limiting column, the dust cap gravity g1, the limiting column gravity g2 and the elastic wave gravity g3, and the limiting column is installed after the dust cap and the elastic wave, and the elastic wave is in a natural elongation state.

7. The high-fidelity ultra-thin speaker according to claim 6, characterized in that: A sound guide channel is provided on one side of the cavity, a sound inlet is provided at one end of the sound guide channel, and the other end of the sound guide channel is connected to the sound outlet; a baffle is provided in the sound guide channel, one end of the baffle is connected to the inner wall of the box near one end of the sound inlet, and the other end of the baffle is extended to the other end of the box.

8. The high-fidelity speaker with a small diameter and a large voice coil according to claim 6, characterized in that: The driving assembly also includes a magnet component, the U iron is provided with a magnet component, and a washer is provided on the magnet component.

9. The high-fidelity speaker with a small diameter and a large voice coil according to claim 6, characterized in that: The cross-sectional area of ​​the inner wall of the voice coil is larger than the cross-sectional area of ​​the elastic wave.

10. The high-fidelity speaker with a small diameter and a large voice coil according to claim 6, characterized in that: The installation process of the limit column and the limit protrusion includes the following steps: S1 determines the dust cap gravity g1, the limit column gravity g2 and the elastic wave gravity g3; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the basin frame through a force measuring device to measure the pulling force F2 of the dust cap on the limit column, and then sets a pressure measuring device between the limit protrusion and the dust cap to measure the pressure F1 between the limit column and the elastic wave; S2 fixes the limit part on the dust cap, gradually lowers it and installs it in the through hole and the through hole, determines the pressure F1 between the limit column and the spring wave and the pressure F1 between the limit column and the spring wave when the spring wave is in the natural extension state; records the current installation position of the limit column on the dust cap and the installation position of the dust cap; S3 installs another limiting column according to the installation position of the limiting column on the dust cap and the installation position of the dust cap.

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