A small-caliber large-sound-cone high-fidelity loudspeaker and high-fidelity ultra-thin sound

Abstract

The application provides a small-caliber large-size high-fidelity loudspeaker and a high-fidelity ultrathin sounder, which comprise a frame, a driving assembly and a voice coil are arranged on the frame, and a sound cone is arranged on the frame, a vibrating mechanism is arranged on the voice coil, the vibrating mechanism comprises a bobbin and a dust cap, a containing groove is arranged above the voice coil, the containing groove is provided with the bobbin, a U-shaped iron of the driving assembly is arranged on the outer side of the voice coil, a containing cavity is arranged between the U-shaped iron and the voice coil, a voice coil is arranged in the containing cavity, a limiting column is arranged on the bobbin, the limiting column is connected with the dust cap, one end of the sound cone is connected with the dust cap and one end of the voice coil, the other end of the sound cone is connected with the frame, the limiting column is installed behind the dust cap and the bobbin, and the bobbin is in a natural elongation state, sound quality is improved, and the reliability of the up-and-down movement of the bobbin can be ensured.

Description

Technical Field

[0001] This invention relates to the field of high-fidelity ultra-thin audio technology, specifically to a high-fidelity speaker with a small diameter and a large voice coil, and a high-fidelity ultra-thin audio system. Background Technology

[0002] With the continuous development of society and economy, audio equipment is being used more and more frequently, and the requirements for sound quality are also increasing. For audio equipment, the speaker, as the main sound-producing device, plays a key role in sound quality. In speaker audio output devices, a spider is usually set to keep the voice coil in a preset position. The spider is also crucial for the propagation of sound.

[0003] For example, patent application number 202123266313.6, published on September 23, 2022, discloses a shock-absorbing bottom spring holder for a moving-coil vehicle loudspeaker, including a lower support ring and an upper support ring. The upper support ring is sleeved on the lower support ring, and the inner wall of the lower support ring is bonded to the voice coil. At the same time, the neck of the spring is fixed between the lower support ring and the upper support ring. The bottom of the upper support ring is integrally formed with several elastic locking pins arranged in a circular array. The bottom of the lower support ring is integrally formed with a connecting flange, which has several locking holes arranged in a circular array. The neck of the spring also has several through holes for the elastic locking pins to pass through. The upper support ring, the spring, and the lower support ring are locked together by the elastic locking pins. The spring holder can reduce the vibration area of ​​the spring, thereby controlling the movement amplitude of the voice coil and preventing the voice coil from hitting the bottom.

[0004] The above literature describes a spider with a lower support ring on its upper surface and an upper support ring on its lower surface. The upper support ring, spider, and lower support ring are engaged by elastic locking posts to limit the spider's movement amplitude. Because the area at the connection point between the spider and the upper and lower support rings is small, the voice coil is located on the four sides of the bottom of the spider. The length of the spider will limit the cross-sectional area of ​​the voice coil, and the cross-sectional area of ​​the voice coil will affect the magnetic flux of the voice coil, thus affecting the driving force of the voice coil and consequently the low-frequency response performance of the speaker. In addition, when the upper and lower support rings engage with the spider, the outer periphery of the spider may deform due to its own gravity. Since the spider needs to overcome its own gravity before it can run normally, it may cause the spider to lag, slow down the response to audio signals, thus affecting the sound transmission speed and increasing the possibility of distortion. Summary of the Invention

[0005] This invention provides a high-fidelity speaker with a small diameter and a large voice coil, as well as a high-fidelity ultra-thin speaker, which improves sound quality and ensures the reliability of the up-and-down movement of the spring.

[0006] To achieve the above objectives, the present invention provides a high-fidelity loudspeaker with a small diameter and a large voice coil, comprising a frame, a drive assembly, a washer, and a cone, wherein a vibration mechanism is provided on the washer, the vibration mechanism comprising a spring and a dust cap, a receiving groove is provided above the washer, the receiving groove is provided with the spring, a U-shaped iron of the drive assembly is provided on the outside of the washer, a cavity is provided between the U-shaped iron and the washer, and a voice coil is provided in the cavity, a limiting post is provided on the spring, the limiting post is connected to the dust cap, a through hole is provided in the middle of the spring, and a limiting part is provided on the limiting post, the lower surface of the limiting part... The dust cap is connected to the spring through the perforation. The middle part of the dust cap has a through hole. The limiting post passes through the through hole and the perforation. The lower surface of the limiting part is connected to the upper surface of the dust cap. One end of the cone is connected to the dust cap and one end of the voice coil. The other end of the cone is connected to the frame. According to the formula, the pressure F1 between the limiting part and the spring is: 2*F2*cosA=g1+g2+g3+F1, where F2 is the tension of the dust cap on the limiting part, the weight of the dust cap g1, the weight of the limiting post and the limiting part g2, and the weight of the spring g3. After the limiting post is installed on the dust cap and the spring, the spring is in a state of natural extension.

[0007] The above setup includes a spring-loaded washer with a limit post. The limit post and limiting part are connected to the dust cap. To prevent external deformation after the limit post is installed on the washer, the dust cap's tension on the limit post balances the weight of the limiting part, the spring, and the dust cap, as well as the pressure between the limit post and the spring. This controls the pressure between the limit post and the spring, preventing the limit part from being too tight or too loose, which would result in excessive pressure on the spring. Consequently, the spring is not in its natural elongation state after the limit post is installed, while it is in its natural elongation state after the limit post is installed. This design allows the spider to vibrate rapidly up and down when the voice coil's driving force is applied, preventing a slow response that could degrade sound quality. It also ensures the voice coil can quickly return to equilibrium under driving force, guaranteeing reliable sound quality. Furthermore, because the spider is housed within the washer's containment chamber, and the voice coil is placed within the cavity between the washer and the U-shaped iron, the thickness of the voice coil is not limited by the spider. This allows for a thicker voice coil to be used with the same speaker diameter, resulting in greater magnetic flux and stronger driving force, thus ensuring better sound reproduction.

[0008] Furthermore, the drive assembly also includes a magnet, which is placed on the U-shaped iron and has a washer mounted on it.

[0009] With the above setup, a U-shaped iron is placed on the frame, and a voice coil is placed between the U-shaped iron and the side of the frame. The upper end of the voice coil is connected to the dust cap. The voice coil is directly connected to the dust cap, without the need to connect the spider to the voice coil, making the internal structure of the speaker more compact and helping to reduce the size of the speaker.

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

[0011] The above configurations, in speakers of the same size, allow for improved low-frequency response due to the larger cross-sectional area of ​​the voice coil. A larger cross-sectional area voice coil can generate a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and fidelity of the sound quality. A larger cross-sectional area voice coil can be matched with a larger magnet, resulting in a larger cross-sectional area of ​​the magnet. 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 compared to speakers of the same size.

[0012] Furthermore, the installation process of the limiting post and the limiting part includes the following steps:

[0013] S1 determines the weight of the dust cap g1, the weight of the limiting post and the limiting part g2, and the weight of the bouncy wave g3;

[0014] S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the frame through a force measuring device to measure the tension F2 of the dust cap on the limiting part, and then sets a pressure measuring device between the limiting part and the dust cap to measure the pressure F1 between the limiting part and the spider.

[0015] S3 fixes the limiting part to the dust cap, and gradually lowers it to install it in the through hole and the perforation. Determine the pressure F1 between the limiting part and the spring when the spring is in the natural elongation state; record the current installation position of the limiting post on the dust cap and the installation position of the dust cap.

[0016] S4 installs another limit post according to the installation position of the limit post on the dust cap and the installation position of the dust cap.

[0017] The above setup involves first installing a limiting post and then, when the spring is in its natural elongation state, recording the tension F2 of the dust cap on the limiting part and the pressure F1 between the limiting part and the spring. It also records the length of the limiting post entering the dust cap and the tilt angle of the dust cap. Subsequently, the limiting post is installed in the same way in another speaker to ensure that the spring is in its natural elongation state, thus enabling faster installation.

[0018] Furthermore, the receiving groove is recessed downwards from the top of the washer.

[0019] The above configuration, with the receiving groove recessed from top to bottom, allows the spring to be positioned within the receiving groove.

[0020] In another aspect, the present invention provides a high-fidelity ultra-thin speaker, including a cabinet with a mounting groove at its center and a top cover above the mounting groove. A cavity is formed between the mounting groove and the top cover, and a high-fidelity speaker is installed in the cavity, passing through the top cover. A sound outlet is provided on one side of the cabinet. The high-fidelity speaker includes a frame, a driver assembly, a washer, and a cone. A vibration mechanism is provided on the washer, including a spring and a dust cap. A receiving groove is provided above the washer, and a spring is provided in the receiving groove. A U-shaped iron of the driver assembly is provided on the outside of the washer, and a cavity is formed between the U-shaped iron and the cone. A voice coil is provided in the cavity. A limiting post is provided on the spring, and the limiting post is connected to the dust cap. The spring has a perforation in the middle, and the limiting post has a limiting part. The lower surface of the limiting part passes through the perforation and connects to the spring. The dust cap has a through hole in the middle. The limiting part includes a limiting post and a limiting protrusion. The limiting post passes through the through hole and the perforation, and the lower surface of the limiting part is connected to the upper surface of the dust cap. One end of the cone is connected to the dust cap and one end of the voice coil, and the other end of the cone is connected to the frame. According to the formula, the pressure F1 between the limiting post and the spring is: 2*F2*cosA=g1+g2+g3+F1, where F2 is the tension of the dust cap on the limiting post, the weight of the dust cap g1, the weight of the limiting post g2, and the weight of the spring g3. After the limiting post is installed on the dust cap and the spring, the spring is in a naturally elongated state.

[0021] The above setup places the low-frequency speaker within the mounting slot of the enclosure, preventing the overall size of the speaker cabinet from becoming excessively large. Because a top cover is installed on the mounting slot, a cavity is formed between the top cover and the mounting slot. Therefore, the sound emitted from the front of the low-frequency speaker is normally output from the top of the speaker cabinet, while the sound emitted from the back of the low-frequency speaker is mixed within the cavity and then output from one side of the enclosure. A spider is installed on the washer, with a limiter connected to a dust cap. To prevent external deformation after the limiter post is installed on the spider, the tension of the dust cap on the limiter post balances the weight of the limiter post, the spider, and the dust cap, as well as the pressure between the limiter post and the spider. This controls the pressure between the limiter post and the spider, preventing the limiter post from being installed too tightly or too loosely, thus ensuring the limiting... Excessive pressure from the limiting part on the spider prevents it from being in its natural elongated state after the limiting part is installed. When the limiting part is installed, the spider is in its natural elongated state, allowing it to vibrate rapidly up and down when the voice coil's driving force is applied. This prevents the spider from responding too slowly, which would degrade sound quality. It also ensures the voice coil can quickly return to equilibrium under driving force, thus guaranteeing sound reliability. Furthermore, because the spider is housed within the washer's receiving groove, and the voice coil is placed in the cavity between the washer and the U-shaped iron, the thickness of the voice coil is not limited by the spider. This allows for a thicker voice coil to be used in a speaker of the same diameter, resulting in greater magnetic flux and stronger driving force, thus ensuring better sound reproduction.

[0022] Furthermore, a sound guide channel is provided on one side of the cavity, with a sound inlet at one end and a sound outlet at the other end; a baffle is provided inside the sound guide channel, with one end of the baffle connected to the inner wall of the cabinet near the sound inlet, and the other end of the baffle extending to the other end of the cabinet.

[0023] The above setup, by setting a sound guide channel between the sound outlet on one side and the cavity, allows the sound mixed inside the cavity to be guided through the sound guide channel and then output from the side, ensuring the quality of the output sound.

[0024] Furthermore, the drive assembly also includes a magnet, which is placed on the U-shaped iron and has a washer mounted on it.

[0025] With the above setup, a U-shaped iron is placed on the frame, and a voice coil is placed between the U-shaped iron and the side of the frame. The upper end of the voice coil is connected to the dust cap. The voice coil is directly connected to the dust cap, without the need to connect the spider to the voice coil, making the internal structure of the speaker more compact and helping to reduce the size of the speaker.

[0026] Furthermore, the cross-sectional area of ​​the inner wall of the voice coil is greater than the cross-sectional area of ​​the spider wave.

[0027] The above configurations, in speakers of the same size, allow for improved low-frequency response due to the larger cross-sectional area of ​​the voice coil. A larger cross-sectional area voice coil can generate a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and fidelity of the sound quality. A larger cross-sectional area voice coil can be matched with a larger magnet, resulting in a larger cross-sectional area of ​​the magnet. 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 compared to speakers of the same size.

[0028] Furthermore, the installation process of the limiting post and the limiting part includes the following steps:

[0029] S1 determines the weight of the dust cap g1, the weight of the limiting post g2, and the weight of the boulders g3;

[0030] S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the frame through a force measuring device to measure the tension F2 of the dust cap on the limiting post, and then sets a pressure measuring device between the limiting part and the dust cap to measure the pressure F1 between the limiting post and the spring.

[0031] S3 fixes the limiting part to the dust cap, and gradually lowers it to install it in the through hole and the perforation. Determine the pressure F1 between the limiting part and the spring when the spring is in the natural elongation state; record the current installation position of the limiting post on the dust cap and the installation position of the dust cap.

[0032] S4 installs another limit post according to the installation position of the limit post on the dust cap and the installation position of the dust cap.

[0033] The above setup involves first installing a limiting post and then, when the spring is in its natural elongation state, recording the tension F2 of the dust cap on the limiting post and the pressure F1 between the limiting post and the spring. It also records the current length of the limiting post entering the dust cap and the tilt angle of the dust cap. Subsequently, the limiting post is installed in the same way in another speaker to ensure that the spring is in its natural elongation state, thus enabling faster installation. Attached Figure Description

[0034] Figure 1 This is a front view of the horn in this invention.

[0035] Figure 2 This is a front view of the limiting post in this invention.

[0036] Figure 3 This is an exploded view of the present invention.

[0037] Figure 4 This is a front view of the bouncy wave in this invention.

[0038] Figure 5This is a schematic diagram of the speaker connection in this invention.

[0039] Figure 6 This is a schematic diagram of the structure of the sound system in this invention.

[0040] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0041] Figure 8 for Figure 6 Enlarged view of section B in the middle.

[0042] Explanation of reference numerals: 1-Dust cap; 2-Limiting post; 21-Limiting part; 3-Cone; 4-Frame; 5-U-shaped iron; 6-Magnet; 7-Washer; 71-Receiving groove; 8-Voice coil; 9-Cavity; 10-Spider; 11-Mounting groove; 12-Top cover; 121-Mounting hole; 13-Cavity; 131-Mounting post; 14-Sound guide channel; 141-Baffle; 142-Sound inlet; 15-Tweeter; 16-Receiving cavity; 161-Microphone; 17-Protrusion; 18-Mounting surface; 19-Mounting hole. Detailed Implementation

[0043] Example 1.

[0044] like Figure 1-5 As shown, a high-fidelity loudspeaker with a small diameter and a large voice coil includes a frame 4, on which a drive assembly, a washer 7, and a cone are mounted. The washer 7 has a vibration mechanism, including a spring 10 and a dust cap 1. A receiving groove 71 is provided above the washer 7, and the spring 10 is mounted in the receiving groove 71. A U-shaped iron 5 of the drive assembly is mounted on the outside of the washer 7. A cavity 9 is provided between the U-shaped iron 5 and the washer 7, and a voice coil 8 is mounted inside the cavity 9. A limiting post 2 is provided on the spring 10, and the limiting post 2 is connected to the dust cap 1. A through hole is provided in the middle of the spring 10. A limiting part 21 is provided on the limiting post 2, and the lower surface of the limiting part 21 passes through the through hole and connects to the spring 10. A through hole is provided in the middle of the dust cap 1. The limiting part 21... The upper surface passes through the through hole and is connected to the dust cap 1. The driving assembly includes a voice coil 8, a magnet 6, and a U-shaped iron 5. The voice coil 8 is located between the U-shaped iron 5 and the washer 7. The lower surface of the limiting part 21 is connected to the upper surface of the dust cap 1. One end of the cone 3 is connected to the dust cap 1 and one end of the voice coil 8. The other end of the cone 3 is connected to the frame 4. According to the formula, the pressure F1 between the limiting part 21 and the spring 10 is: 2*F2*cosA=g1+g2+g3+F1. F2 is the pulling force of the dust cap 1 on the limiting part 21. The weight of the dust cap 1 is g1, the weight of the limiting post and the limiting part is g2, and the weight of the spring 10 is g3. After the limiting post 2 is installed on the dust cap 1 and the spring 10, the spring is in a naturally elongated state.

[0045] In this embodiment, the receiving groove 71 is recessed downward from the top of the washer 7, and the limiting part 21 protrudes outward from the limiting post 2.

[0046] The installation process of the limiting post 2 and the limiting part 21 includes the following steps:

[0047] S1 determines the gravity g1 of the dust cap 1, the gravity g2 of the limiting post 1 and the limiting part 21, and the gravity g3 of the bouncy wave;

[0048] S2 fixes the bottom of the voice coil 8 in the receiving groove 71, connects the two sides of the dust cap 1 to the frame 4 through a force measuring device to measure the tension 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 spring 10; at the same time, the included angle between the dust cap and the axis of the limiting column is measured.

[0049] S3 fixes the limiting part 21 on the dust cap 1, and gradually lowers it to install it in the through hole and the perforation. Determine the pressure F1 between the limiting post 2 and the spring 10 and the pressure F1 between the limiting part 21 and the spring 10 when the spring 10 is in the natural elongation state. Record the current installation position of the limiting post 2 on the dust cap 1 and the installation position of the dust cap 1.

[0050] S4 Install another limiting post 2 according to the installation position of the limiting post 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.

[0051] like Figure 2-4 As shown, a magnet 6 is placed on the U-shaped iron 5. A cavity 9 is provided between the U-shaped iron 5 and the magnet 6 and the side of the 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-shaped iron 5 is placed on the frame 4. The voice coil 8 is placed between the U-shaped iron 5 and the side of the 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, without the need to connect the spider 10 to the voice coil 8, making the internal structure of the speaker more compact and helping to reduce the size of the speaker.

[0052] The frame 4 is connected to one end of the cone 3, and the other end of the cone 3 is connected to the dust cap 1 and the upper end of the voice coil 10. The stable connection between the frame 4 and the cone 3 can reduce unnecessary deformation of the cone 3 during vibration. The connection between the voice coil 8 and the dust cap 1 corresponds to the connection between the cone 3 and the dust cap 1, so that the voice coil 8 is connected to the dust cap 1 and the cone 3. The voice coil 8 acts on the dust cap 1 and the cone 3, which can generate a stronger driving force, so that the cone 3 can vibrate over a wider range.

[0053] The cross-sectional area of ​​the inner wall of the voice coil 8 is larger than that of the spider 10. In speakers of the same size, the voice coil 8 with a larger cross-sectional area helps to improve the low-frequency response. The voice coil 8 with a larger cross-sectional area can generate a larger amplitude when vibrating, making the sound fuller and more powerful. It also helps to reduce distortion and improve the clarity and fidelity of the sound quality. The voice coil 8 with a larger cross-sectional area can match a larger magnet 6, making the cross-sectional area of ​​the magnet 6 larger. As the cross-sectional area of ​​the magnet 6 increases, the height of the magnet 6 can be reduced to obtain the same volume of magnet 6. Therefore, the speaker structure can be made thinner than that of speakers of the same size.

[0054] The working principle of this invention is as follows: A spring 10 is provided on the washer 7, and a limiting post is provided on the spring 10. The limiting post is connected to the dust cap 1. In order to prevent external deformation of the limiting post on the spring 10, a limiting post 2 is provided on the spring 10. The limiting post 2 and the limiting part 21 are connected to the dust cap 1. In order to prevent external deformation of the spring 10 after the limiting post 2 is installed, the tension of the dust cap 1 on the limiting post 2 can be used to balance the force between the limiting part 21, the spring 10, the weight of the dust cap 1, and the pressure between the limiting post 2 and the spring 10. This controls the pressure between the limiting post 2 and the spring 10, preventing the limiting part 21 from being installed too tightly or too loosely, which would result in excessive pressure on the spring 10. Therefore, after the limiting part 21 is installed, the spring 10 will not deform. When the spider 10 is not in its naturally elongated state, but is in its naturally elongated state after the limiting part 21 is installed, the subsequent voice coil driving force can be applied to the spider 10, and the spider 10 can vibrate up and down quickly. This prevents the spider 10 from responding too slowly and causing a deterioration in sound quality. At the same time, it also ensures that the voice coil 8 can quickly return to a balanced state under the driving force, thus ensuring the reliability of sound quality. In addition, since the spider 10 is set in the receiving groove 71 of the washer 7, and the voice coil 8 is set in the cavity 9 between the washer 7 and the U-shaped iron 5, the thickness of the voice coil 8 is not limited by the spider 10. This allows for a thicker voice coil 8 to be set under the same diameter speaker, resulting in a larger magnetic flux and a stronger driving force, thus ensuring better sound production.

[0055] Example 2.

[0056] like Figure 1-7 The present invention provides a high-fidelity ultra-thin speaker, including a cabinet 1aa, a mounting groove 11 provided in the center of the cabinet, a top cover 12 provided above the mounting groove 11, a cavity 13 formed between the mounting groove 11 and the top cover 12, and a high-fidelity speaker 2a installed in the cavity 13. The structure of the low-frequency speaker 2a is as shown in Embodiment 1.

[0057] like Figure 6 and Figure 7As shown, a sound guiding channel 14 is provided on one side of the cavity 13. One end of the sound guiding channel 14 is provided with a sound inlet 142, and the other end of the sound guiding channel 14 is connected to the sound outlet 15. A baffle 141 is provided inside the sound guiding channel 14. One end of the baffle 141 is connected to the inner wall of the enclosure near the sound inlet 142, and the other end of the baffle 141 extends towards the other end of the enclosure 1a. In this embodiment, two baffles 141 are provided on the sound guiding channel 14. One end of one baffle 141 is connected to one side wall of the enclosure 1a, and one end of the other baffle 141 is connected to the other side wall of the enclosure 1a. The two baffles 141 are arranged parallel to each other at intervals. One side wall of the enclosure 1a and the other side wall of the enclosure 1a are arranged opposite to each other. The two baffles 141 form an S-shaped channel in the sound guiding channel 14, thereby increasing the length of the sound guiding channel.

[0058] In this embodiment, the high-fidelity speaker 2a is a low-frequency speaker. A mounting post 131 is provided in the cavity 13. The top cover 12 is provided with a mounting hole 121 for the high-fidelity speaker 2a to pass through. The top cover 12 is provided with a fixing hole corresponding to the mounting post 131. The high-fidelity speaker 2a is installed by passing through the mounting hole 121 and fixing screws through the fixing hole and mounting post. The high-fidelity speaker 2a is located in the middle of the cavity 13. Tweeters 15 are provided on both sides of the high-fidelity speaker 2a in the cavity.

[0059] like Figure 7 As shown, a receiving cavity 16 for accommodating a microphone 151 is provided on the side of the housing 1a away from the cavity 13. The receiving cavity 16 facilitates the storage of the microphone.

[0060] like Figure 7 As shown, a protrusion 17 is provided on one side of the receiving cavity 16 near the outer wall of the housing 1a. The protrusion 17 extends to the other side of the receiving cavity 16, and the handheld part of the microphone 161 is secured between the protrusion 17 and the other side of the receiving cavity 16. The protrusion 17 secures the handheld part of the microphone 161, preventing the microphone 161 from shaking during carrying and transportation.

[0061] like Figure 8 As shown, a mounting surface 18 is provided at the top of the protrusion 17, and a mounting hole 19 is provided on the mounting surface 18. An outer shell (not shown in the figure) is provided on the housing 1a. The outer shell is connected to the housing 1a by a hinge for easy opening and closing of the housing. The fixed end of the hinge is connected to the mounting hole 19 by a screw (not shown in the figure), and the movable end of the hinge is connected to the outer shell. By providing a mounting surface 18 on the protrusion 17, the hinge can be installed, saving space, and the protrusion 17 can limit the position of the microphone 161.

[0062] The working principle of this invention is as follows: A high-fidelity speaker 2a is installed on the speaker enclosure 1a, and the sound emitted from the bottom of the high-fidelity speaker is mixed in a cavity. The sound is then guided through the cavity and emitted from the side of the enclosure 1a via a sound guide channel. This extends the sound channel, allowing for better mixing of the sound and improving sound quality. A spring 10 is installed on the washer 7, and a limiting post is installed on the spring 10. The limiting post is connected to the dust cap 1. To prevent external deformation of the limiting post on the spring 10, a limiting post 2 is installed on the spring 10. The limiting post 2 and the limiting part 21 are connected to the dust cap 1. To prevent external deformation of the spring 10 after the limiting post 2 is installed, the tension of the dust cap 1 on the limiting post 2 balances the forces of the limiting part 21, the spring 10, the weight of the dust cap 1, and the pressure between the limiting post 2 and the spring 10. This controls the pressure between the limiting post 2 and the spring 10, preventing the limiting part 21 from deforming into the spring 10. If the spring 10 is installed too tightly or too loosely, the pressure of the limiting part 21 on the spring 10 will be too great. As a result, the spring 10 will not be in a naturally elongated state after the limiting part 21 is installed. When the spring is in a naturally elongated state after the limiting part 21 is installed, the subsequent voice coil driving force can be applied to the spring 10, and the spring 10 can vibrate up and down quickly. This prevents the spring 10 from responding too slowly and causing a deterioration in sound quality. At the same time, it also prevents the voice coil 8 from not being able to quickly return to a balanced state under the driving force, thus ensuring the reliability of sound quality. In addition, since the spring 10 is set in the receiving groove 71 of the washer 7, and the voice coil 8 is set in the cavity 9 between the washer 7 and the U-shaped iron 5, the thickness of the voice coil 8 is not limited by the spring 10. This allows for a thicker voice coil 8 to be set under the same diameter speaker, resulting in a larger magnetic flux and a stronger driving force, thus ensuring better sound production.

Claims

1. A high-fidelity loudspeaker with a small diameter and a large voice coil, comprising a frame, a drive assembly, a washer, and a cone, wherein a vibration mechanism is provided on the washer, the vibration mechanism comprising a spring and a dust cap, characterized in that: A receiving groove is provided above the washer, and a spring is provided in the receiving groove. A U-shaped iron of the driving component is provided on the outside of the washer. A cavity is provided between the U-shaped iron and the washer, and a voice coil is provided in the cavity. A limiting post is provided on the spring, and the limiting post is connected to the dust cap. A through hole is provided in the middle of the spring. A limiting part is provided on the limiting post. The lower surface of the limiting part passes through the through hole and connects with the spring. A through hole is provided in the middle of the dust cap. The limiting post passes through the through hole and the through hole, and the lower surface of the limiting part is connected to the dust cap. The upper surfaces of the caps are connected. One end of the cone is connected to the dust cap and one end of the voice coil. The other end of the cone is connected to the frame. According to the formula, the pressure F1 between the limiting part and the spider is: 2*F2*cosA=g1+g2+g3+F1, where F2 is the tension of the dust cap on the limiting part, g1 is the weight of the dust cap, g2 is the weight of the limiting post and the limiting part, and g3 is the weight of the spider. A is the angle between the axes of the dust cap and the limiting post. After the limiting post is installed on the dust cap and the spider, the spider is in a state of natural elongation.

2. The high-fidelity loudspeaker with a small diameter and large voice coil according to claim 1, characterized in that: The drive assembly also includes a magnet, which is placed on the U-shaped iron and has a washer mounted on it.

3. A high-fidelity loudspeaker 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 greater than the cross-sectional area of ​​the spider wave.

4. A high-fidelity loudspeaker with a small diameter and a large voice coil according to claim 1, characterized in that: The installation process of the limiting post and the limiting part includes the following steps: S1 determines the weight of the dust cap g1, the weight of the limiting post and the limiting part g2, and the weight of the bouncy wave g3; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the frame through a force measuring device to measure the tension F2 of the dust cap on the limiting part, and then sets a pressure measuring device between the limiting part and the dust cap to measure the pressure F1 between the limiting part and the spider. S2 fixes the limiting part to the dust cap, and gradually lowers it to install it in the through hole and the perforation. Determine the pressure F1 between the limiting part and the spring when the spring is in the natural elongation state; record the current installation position of the limiting post on the dust cap and the installation position of the dust cap. S3 installs another limiting post according to the installation position of the limiting post on the dust cap and the installation position of the dust cap.

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

6. A high-fidelity ultra-thin speaker, comprising a cabinet, characterized in that: A mounting slot is provided in the center of the enclosure, and a top cover is provided above the mounting slot. A cavity is formed between the mounting slot and the top cover, and a high-fidelity speaker is installed in the cavity. The high-fidelity speaker passes through the top cover. A sound outlet is provided on one side of the enclosure. The high-fidelity speaker includes a frame, on which a driver assembly, a washer, and a cone are mounted. A vibration mechanism is provided on the washer, which includes a spring and a dust cap. A receiving groove is provided above the washer, and the spring is placed in the receiving groove. A U-shaped iron of the driver assembly is provided on the outside of the washer, and a cavity is provided between the U-shaped iron and the washer. A voice coil is placed in the cavity. A limiting post is provided on the spring, which is connected to the dust cap. A perforation is provided in the middle of the spring. The limiting post is provided with a limiting part. The lower surface of the limiting part passes through a perforation and connects to the spring. The dust cap has a through hole in the middle. The limiting post passes through the through hole and the perforation. The lower surface of the limiting part is connected to the upper surface of the dust cap. One end of the cone is connected to the dust cap and one end of the voice coil. The other end of the cone is connected to the frame. According to the formula, the pressure F1 between the limiting post and the spring is: 2*F2*cosA=g1+g2+g3+F1, where F2 is the tension of the dust cap on the limiting post, g1 is the weight of the dust cap, g2 is the weight of the limiting post, and g3 is the weight of the spring. A is the angle between the axes of the dust cap and the limiting post. After the limiting post is installed on the dust cap and the spring, the spring is in a state of natural extension.

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

8. A high-fidelity ultra-thin speaker according to claim 6, characterized in that: The drive assembly also includes a magnet, which is placed on the U-shaped iron and has a washer mounted on it.

9. A high-fidelity ultra-thin speaker according to claim 6, characterized in that: The cross-sectional area of ​​the inner wall of the voice coil is greater than the cross-sectional area of ​​the spider wave.

10. A high-fidelity ultra-thin speaker according to claim 6, characterized in that: The installation process of the limiting post and the limiting part includes the following steps: S1 determines the weight of the dust cap g1, the weight of the limiting post g2, and the weight of the boulders g3; S2 fixes the bottom of the voice coil in the receiving groove, connects the two sides of the dust cap to the frame through a force measuring device to measure the tension F2 of the dust cap on the limiting post, and then sets a pressure measuring device between the limiting part and the dust cap to measure the pressure F1 between the limiting post and the spring. S2 fixes the limiting part to the dust cap, and gradually lowers it to install it in the through hole and the perforation. Determine the pressure F1 between the limiting part and the spring when the spring is in the natural elongation state; record the current installation position of the limiting post on the dust cap and the installation position of the dust cap. S3 installs another limiting post according to the installation position of the limiting post on the dust cap and the installation position of the dust cap.

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