Heat dissipation type loudspeaker

By setting a cooling component on the outside of the magnet assembly of the speaker, the demagnetization problem caused by heating is solved, production costs are reduced, sound quality stability and product yield are improved.

CN119562196APending Publication Date: 2025-03-04东莞市融贤实业有限公司 +1

Patent Information

Application Number
CN202510127418.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

Existing speakers are prone to demagnetization due to heating during power testing, resulting in distortion of sound quality and reduced volume, and the use of high-grade magnets increases production costs.

Method used

A heat dissipation speaker is designed to effectively control the temperature of the magnet assembly by providing cooling components, including cooling units, coolant and cooling chambers, on the outside of the magnet assembly, to avoid demagnetization problems caused by high temperatures.

Benefits of technology

It effectively solves the problem of heating and demagnetization, reduces dependence on high-grade magnets, reduces production costs, improves sound quality stability and product yield, and extends service life.

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Abstract

The invention relates to a heat dissipation type loudspeaker, which comprises an outer frame, a vibration assembly, a voice coil assembly, a magnet assembly and a cooling assembly, and is characterized in that the vibration assembly, the voice coil assembly and the magnet assembly are arranged in the outer frame; the two ends of the voice coil assembly are connected to the vibration assembly and the magnet assembly respectively, and the cooling assembly is arranged on the outer side of the magnet assembly.
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Description

Technical Field

[0001] The invention relates to the field of loudspeakers, and in particular to a heat dissipation loudspeaker. Background Art

[0002] In the field of speaker production and testing, power testing is an important process to ensure product quality. However, this process has long been plagued by the problem of speaker heating and demagnetization, which has become a pain point that needs to be solved urgently in the industry.

[0003] At present, in order to deal with the heating problem of speakers in power testing, the industry generally uses H or SH grade magnets. These high-grade magnets have certain high temperature resistance characteristics and can maintain relatively stable magnetism within a temperature range of 120 to 140 degrees. However, this method has obvious defects. In actual power testing, once the temperature exceeds this range, the demagnetization of the speaker will deteriorate sharply. Experimental data shows that the degree of demagnetization can be as high as 12dB, which will seriously damage the acoustic performance of the speaker, resulting in sound quality distortion, reduced volume and other problems, seriously affecting product quality and user experience.

[0004] From a cost perspective, using H or SH grade magnets will significantly increase production costs. The raw material costs and processing costs of these high-grade magnets are relatively high, and in large-scale production, this part of the cost increase cannot be ignored. In addition, the increase in product defective rates due to demagnetization problems further increases the overall cost of production. Summary of the invention

[0005] An advantage of the present invention is that it provides a heat dissipation speaker, which solves the problem of heating and demagnetization, effectively overcomes the key problem of heating and demagnetization after power testing, and ensures the stable performance of the heat dissipation speaker.

[0006] Another advantage of the present invention is that it provides a heat dissipation speaker, which reduces the requirements for magnet grade and no longer requires magnets of a predetermined grade, thereby expanding the range of magnet material selection and reducing dependence on high-grade magnets.

[0007] Another advantage of the present invention is that it provides a heat dissipation speaker, which reduces production costs, eliminates the need for high-grade magnets, directly reduces raw material costs, and improves the price competitiveness of the product.

[0008] Another advantage of the present invention is that it provides a heat dissipation speaker, the temperature of which is precisely controlled, ensuring that the temperature of the heat dissipation speaker does not exceed a predetermined degree during power testing, thereby avoiding a series of adverse consequences caused by high temperature.

[0009] Another advantage of the present invention is that it provides a heat dissipation speaker, which improves the stability of sound quality. Since the demagnetization problem is avoided, the sound quality of the heat dissipation speaker will not be distorted due to magnetic changes after power testing, and high-quality sound quality can be maintained for a long time.

[0010] Another advantage of the present invention is that it provides a heat dissipation speaker, which improves product yield, reduces the number of defective products caused by demagnetization, improves product qualification rate in the production process, and reduces production losses.

[0011] Another advantage of the present invention is that it provides a heat dissipation speaker, which enhances product durability, prevents the performance of the heat dissipation speaker from being degraded due to demagnetization, extends the service life of the heat dissipation speaker, and improves product durability.

[0012] Another advantage of the present invention is that it provides a heat dissipation speaker, which optimizes the production process, eliminates the need to consider special processing and handling of high-grade magnets, simplifies the production process, and improves production efficiency.

[0013] Another advantage of the present invention is that it provides a heat dissipation speaker, which is energy-saving and environmentally friendly, reducing resource waste and energy consumption caused by producing defective products, and the production process of low-grade magnets may be more environmentally friendly and meet the requirements of sustainable development; According to another aspect of the present invention, the present invention further provides a heat dissipation speaker, the heat dissipation speaker comprising: an outer frame; a vibration assembly; a voice coil assembly; a magnet assembly; and A cooling component; the vibration component, the voice coil component and the magnet component are all arranged in the outer frame, the two ends of the voice coil component are respectively connected to the vibration component and the magnet component, and the cooling component is arranged on the outside of the magnet component.

[0014] According to one embodiment of the present invention, the cooling assembly includes a cooling unit, a cooling liquid and a cooling cavity, wherein the cooling cavity is arranged in the cooling unit, the cooling unit surrounds the outside of the magnet assembly, and the cooling liquid is placed in the cooling cavity and contacts the outside of the magnet assembly.

[0015] According to an embodiment of the present invention, the cooling unit is made of aluminum.

[0016] According to one embodiment of the present invention, the magnet assembly includes an external yoke, a first magnet, a second magnet and a magnetic conductive plate, the first magnet, the second magnet and the magnetic conductive plate are all located inside the external yoke, the external yoke is connected to the outer frame, and the magnetic conductive plate is located between the first magnet and the second magnet.

[0017] According to an embodiment of the present invention, the magnet assembly further has a magnetic gap, which is located between the outer yoke and the first magnet and the second magnet, and the lower end of the voice coil assembly is suitable for being placed in the magnetic gap.

[0018] According to one embodiment of the present invention, the outer frame includes an upper frame and a lower frame, the upper frame and the lower frame are connected to each other, the vibration assembly is connected to the upper frame, and the magnet assembly is connected to the lower frame. The upper frame includes an upper frame body and an upper frame edge portion, and the upper frame edge portion is integrally formed with the upper frame body. The lower frame includes a lower frame body and a lower frame edge portion, and the lower frame edge portion is integrally formed with the lower frame body.

[0019] According to an embodiment of the present invention, the vibration component includes a suspension component and a drum-paper component, and the drum-paper component is connected to the suspension component.

[0020] According to one embodiment of the present invention, the suspension assembly includes an outer suspension and an inner suspension, the outer suspension and the inner suspension are an integrated structure, the drum paper assembly includes a vibration part and a connecting part, wherein the inner suspension part of the suspension assembly extends inward to be connected to the connecting part of the drum paper assembly, the outer suspension part of the suspension assembly extends outward to be connected to the upper frame edge of the upper frame, and the vibration part of the drum paper assembly is connected to the voice coil assembly.

[0021] According to one embodiment of the present invention, the voice coil assembly includes a spring wave and a voice coil, the voice coil includes an upper voice coil portion and a lower voice coil portion, one end of the spring wave is connected to the edge of the lower frame, and the other end is connected to the voice coil, the lower voice coil portion is extended to be connected to the magnetic gap of the magnet assembly, and the upper voice coil portion is extended to be connected to the vibration portion of the drum paper assembly.

[0022] According to an embodiment of the present invention, the outer frame further includes a cap and a terminal. Specifically, the cap covers the connection between the top of the voice coil and the drum-paper assembly, and the terminal is arranged on the upper frame to facilitate connection with external wires.

[0023] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the overall structure of a heat dissipation speaker according to an embodiment of the present invention.

[0025] Figure 2 is a cross-sectional view of a heat dissipation speaker according to an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the structure of a cooling assembly of a heat dissipation speaker according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] Reference Figure 1 To Attachment Figure 3 As shown, a heat dissipation speaker according to a preferred embodiment of the present invention is illustrated. The heat dissipation speaker 1 effectively solves the problem of heating and demagnetization after the power test of the heat dissipation speaker 1. In the present application, the magnet of the heat dissipation speaker 1 does not need to rely on high-grade materials, and can ensure that the temperature does not exceed a predetermined degree during the power test, thereby maintaining stable magnetism. This not only significantly improves the performance and quality of the heat dissipation speaker 1, but also greatly reduces the production cost.

[0031] For ease of explanation, in this embodiment, the end of the heat dissipation speaker 1 that emits sound during use is regarded as the front end of the heat dissipation speaker 1, and the end opposite to the front end of the heat dissipation speaker 1 is regarded as the rear end of the heat dissipation speaker.

[0032] Figure 1 1 is a schematic diagram of the overall structure of the heat dissipation speaker 1 according to the first preferred embodiment of the present invention. In this embodiment, the heat dissipation speaker 1 includes an outer frame 10, a vibration assembly 20, a voice coil assembly 30, a magnet assembly 40 and a cooling assembly 50. The vibration assembly 20, the voice coil assembly 30 and the magnet assembly 40 are all arranged in the outer frame 10. The two ends of the voice coil assembly 30 are respectively connected to the vibration assembly 20 and the magnet assembly 40. The cooling assembly 50 is arranged on the outside of the magnet assembly 40. In other words, the two ends of the voice coil assembly 30 are respectively connected to the lower end of the vibration assembly 20 and the upper end of the magnet assembly 40. During the sound generation process of the heat dissipation speaker 1, the magnet assembly 40 is excited to drive the voice coil assembly 30 to move. The movement of the voice coil assembly 30 causes the vibration of the vibration assembly 20. The vibration of the vibration assembly 20 further causes the fluctuation of the air medium, thereby generating different audio frequencies. These audio frequencies become sound signals when they reach the human ear.

[0033] It is worth mentioning that the cooling assembly 50 is arranged on the outside of the magnet assembly 40 to reliably control the temperature of the magnet assembly 40, effectively solving the problem of heating and demagnetization of the heat dissipation speaker 1 after the power test. In the embodiment of the present application, when the heat dissipation speaker 1 is working, the cooling assembly 50 can effectively absorb the heat, thereby ensuring that the temperature of the magnet assembly 40 does not rise excessively. The high-grade (H or SH) magnets originally used to cope with high temperatures are no longer necessary. Ordinary-grade magnets can be used instead, for example, N-grade, M-grade or L-grade magnets. In traditional speakers, the magnetism of ordinary-grade magnets is more easily affected by external magnetic field interference or temperature changes. For example, when the temperature is slightly increased, its magnetism decreases significantly. However, in this embodiment, the cooling assembly 50 is arranged on the outside of the magnet assembly 40 to reliably control the temperature of the magnet assembly 40, so the ordinary-grade magnet assembly 40 can be used.

[0034] On the one hand, the material selection range of the magnet assembly 40 is expanded, reducing the dependence on high-grade magnets. On the other hand, the cost of the ordinary grade magnet assembly 40 is much lower than that of high-grade magnets, which reduces the production cost of the heat dissipation speaker 1, eliminates the need for high-grade magnets, directly reduces the cost of raw materials, and improves the price competitiveness of the product. In addition, the heat dissipation speaker 1 improves the product yield, reduces the number of defective products caused by demagnetization, improves the product qualification rate in the production process, reduces production losses, and further reduces production costs. In other words, the heat dissipation speaker 1 improves the stability of the sound quality. Since the demagnetization problem is avoided, the sound quality of the heat dissipation speaker 1 will not be distorted due to magnetic changes after the power test, and the high-quality sound quality can be maintained for a long time.

[0035] Specifically, the magnet assembly 40 includes an external yoke 41, a first magnet 42, a second magnet 43 and a magnetic conductive plate 44, wherein the first magnet 42, the second magnet 43 and the magnetic conductive plate 44 are all located inside the external yoke 41, and the external yoke 41 is connected to the outer frame 10, wherein the magnetic conductive plate 44 is located between the first magnet 42 and the second magnet 43, and the magnetic conductive plate 44 can not only enhance the magnetic field strength and uniformity, but also improve the magnetic circuit efficiency. That is, the magnetic conductive plate 44 can guide the distribution of magnetic lines of force, so that the magnetic field passes through the magnetic gap where the voice coil assembly 30 is located more concentratedly, and it can also improve the uniformity of the magnetic field in the moving area of ​​the voice coil assembly 30. If the magnetic lines of force in the magnetic circuit are not effectively guided, part of the magnetic lines of force will leak into the surrounding space, and this part of the leaked magnetic field cannot have an effective effect on the voice coil assembly 30. The magnetic conductive plate 44 can constrain the magnetic lines of force inside the magnetic circuit, so that the magnetic field passes through the area where the voice coil assembly 30 is located as much as possible, thereby reducing the magnetic leakage phenomenon. This improves the efficiency of the magnetic circuit, allowing the speaker to output louder and clearer sound with the same input electrical power.

[0036] When the heat dissipation speaker 1 generates heat during operation, the heat will be transferred to the external yoke 41, and the cooling assembly 50 surrounding the external yoke 41 can quickly absorb the heat, thereby ensuring that the temperature of the external yoke 41 and the first magnet 42, the second magnet 43 and the magnetic plate 44 connected thereto will not rise excessively, thereby solving the problem of heat demagnetization, effectively overcoming the key problem of heat demagnetization after power testing that has long plagued the industry, and ensuring the stable performance of the heat dissipation speaker.

[0037] The magnet assembly 40 further has a magnetic gap 45 , which is defined as a gap between the outer yoke 41 and the first magnet 42 and the second magnet 43 . The lower end of the voice coil assembly 30 is suitable for being placed in the magnetic gap 45 .

[0038] More specifically, the cooling assembly 50 includes a cooling unit 51, a coolant 53 and a cooling cavity 52, wherein the cooling cavity 52 is disposed in the cooling unit 51, and the coolant 53 is placed in the cooling cavity 52. ​​Specifically, the cooling unit 51 is configured as a column wrapped around the outer side of the outer yoke 41 of the magnet assembly 40, the cooling cavity 52 is recessed and extends outward from the inner wall of the cooling unit 51, and the coolant 53 is placed in the cooling cavity 52 and contacts the outer side of the outer yoke 41 of the magnet assembly 40.

[0039] In the application of the present invention, the cooling unit 51 is implemented as a cast aluminum part, that is, the material of the cooling unit 51 is aluminum. Since aluminum has good thermal conductivity, the coolant 53 can effectively take away the heat, thereby ensuring that the temperature of the external yoke 41 and the first magnet 42, the second magnet 43 and the magnetic conductive plate 44 connected thereto will not rise excessively, thereby solving the problem of heating and demagnetization, effectively overcoming the key problem of heating and demagnetization after power testing, and ensuring the stable performance of the heat dissipation speaker.

[0040] In the present application, the temperature range that the cooling component 50 can withstand is 180°C to -40°C. In different usage environments and working conditions, the speaker may face temperature changes. For example, in an outdoor performance scene, the speaker may be exposed to the sun, causing the temperature to rise; while in a cold outdoor environment or some special low-temperature storage conditions, the temperature will be very low. The cooling component 50 can maintain its basic physical and mechanical properties within the temperature range of -40°C to 180°C, and will not be severely deformed, damaged or degraded due to temperature changes.

[0041] In addition, the cooling assembly 50 can ensure that the temperature of the heat dissipation speaker 1 does not exceed a predetermined degree during the power test, thereby avoiding a series of adverse consequences caused by high temperature. In other words, the cooling assembly 50 can effectively take away the heat, thereby ensuring that the temperature of the external yoke 41 and the first magnet 42, the second magnet 43 and the magnetic conductive plate 44 connected thereto will not rise excessively. In this embodiment, the temperature will not rise above 120°C, so that the high-grade (H or SH) magnets originally used to cope with high temperatures are no longer necessary, and ordinary-grade magnets can be used instead, and there will be no problem of heating and demagnetization, which reduces the magnet grade requirements for the magnet assembly 40, and no longer requires magnets of a predetermined grade, which expands the range of magnet selection and reduces the dependence on high-grade magnets.

[0042] During the production process, the cooling unit 51 with the cooling cavity 52 is first manufactured by a casting process using a high-precision mold. After the casting is completed, the cooling unit 51 is quality inspected to ensure that the integrity and sealing of the cooling cavity 52 meet the design requirements. The cooling unit 51 is assembled with the external yoke 41, and an appropriate process such as pressing or gluing is used during the assembly process. Subsequently, the coolant 53 is slowly injected into the cooling cavity 52 through a special pouring device. During the pouring process, it is necessary to remove air to prevent bubbles from remaining and affecting the heat exchange efficiency of the coolant, ensure that the cooling unit 51 and the external yoke 41 are tightly connected and the coolant 53 does not leak, and make the coolant 53 fully contact with the external yoke 41. Then, the external yoke 41 with the cooling unit 51 is assembled with the outer frame 10, the vibration assembly 20, the voice coil assembly 30 and the magnet assembly 40 according to the standard assembly process to complete the manufacture of the heat dissipation speaker 1. The heat dissipation speaker 1 optimizes the production process, does not need to consider the special processing and handling links of high-grade magnets, simplifies the production process, and improves production efficiency.

[0043] The outer frame 10 includes an upper frame 11 and a lower frame 12, the upper frame 11 and the lower frame 12 are connected to each other, the vibration assembly 20 is connected to the upper frame 11, the magnet assembly 40 is connected to the lower frame 12, and the voice coil assembly 30 is arranged between the vibration assembly 20 and the magnet assembly 40. The upper frame 11 includes an upper frame body 111 and an upper frame edge portion 112, and the upper frame edge portion 112 is integrally formed with the upper frame body 111. The lower frame 12 includes a lower frame body 121 and a lower frame edge portion 122, and the lower frame edge portion 122 is integrally formed with the lower frame body 121.

[0044] The vibration assembly 20 includes a suspension assembly 21 and a drum-paper assembly 22, the drum-paper assembly 22 is connected to the suspension assembly 21, the suspension assembly 21 and the drum-paper assembly 22 are both installed in the upper frame 11, and the suspension assembly 21 is arranged at the upper end of the drum-paper assembly 22 to limit the range of movement of the drum-paper assembly 22 and ensure that the drum-paper assembly 22 makes reciprocating motion, thereby ensuring that the sound of the heat dissipation speaker 1 is clearly transmitted to the user's ears.

[0045] Specifically, the suspension assembly 21 includes a suspension outer portion 211 and a suspension inner portion 212, wherein the suspension outer portion 211 and the suspension inner portion 212 are an integral structure, and the drum-paper assembly 22 includes a vibration portion 221 and a connection portion 222, wherein the suspension inner portion 212 of the suspension assembly 21 extends inwardly to be connected to the connection portion 222 of the drum-paper assembly 22, and correspondingly, the suspension outer portion 211 of the suspension assembly 21 extends outwardly to be connected to the upper frame edge portion 112 of the upper frame 11. The vibration portion 221 of the drum-paper assembly 22 is connected to the voice coil assembly 30.

[0046] The voice coil assembly 30 includes a spring 31 and a voice coil 32. The voice coil 32 includes an upper voice coil portion 321 and a lower voice coil portion 322. The upper voice coil portion 321 and the lower voice coil portion 322 are connected as one piece. That is, the upper voice coil portion 32 is defined as the upper portion of the voice coil 32, and the lower voice coil portion 322 is defined as the lower portion of the voice coil 32. One end of the spring 31 is connected to the lower frame edge portion 122, and the other end is connected to the voice coil 32. The spring 31 is used to keep the voice coil 32 at the center position of the heat dissipation speaker 1. When the voice coil 32 vibrates axially under the action of the magnetic field, the spring 31 provides an elastic restoring force in the radial direction. If the voice coil 32 deviates radially during the vibration process, the spring 31 will pull the voice coil 32 back to the center position to prevent the voice coil 32 from colliding with the magnet assembly 40.

[0047] The voice coil lower portion 322 of the voice coil 32 is extended and connected to the magnetic gap 45 of the magnet assembly 40, the voice coil upper portion 321 of the voice coil 32 is extended and connected to the vibration portion 221 of the drum paper assembly 22, and the magnet assembly 40 and the voice coil lower portion 322 of the voice coil 32 can be magnetically connected to each other.

[0048] Based on this, when the heat dissipation speaker 1 receives an electrical signal, that is, the magnet assembly 40 and the lower part 322 of the voice coil 32 exchange magnetic signals with each other, the lower part 322 of the voice coil of the magnet assembly 40 is transmitted to the upper part 321 of the voice coil, and the upper part 321 of the voice coil drives the vibration of the drum-paper assembly 22, and the vibration of the drum-paper assembly 22 causes the fluctuation of the air medium, thereby generating a sound effect transmitted to the user's ears.

[0049] The outer frame 10 further includes a cap 13 and a terminal 14. The cap 13 is located at the center of the drum-paper assembly 22. Specifically, the cap 13 covers the connection between the top of the voice coil 32 and the drum-paper assembly 22. The cap 13 plays a protective role, protecting the connection between the voice coil 32 and the drum-paper assembly 22 from dust, moisture and other foreign matter. For example, in daily environments, if dust particles in the air enter the connection area between the voice coil 32 and the drum-paper assembly 22, it may affect the movement of the voice coil 32, causing sound distortion or mechanical failure. The cap 13 can effectively block the dust and extend the service life.

[0050] The terminal 14 is provided on the upper frame 11 for connecting external wires. The terminal 14 is an interface for electrically connecting the heat dissipation speaker 1 with external audio devices such as power amplifiers, audio players, etc. It can transmit audio signals from external devices to the voice coil 32 inside the heat dissipation speaker 1. For example, by inserting the plug of the speaker cable into the terminal 14 of the heat dissipation speaker 1, a complete audio signal path can be established, so that the heat dissipation speaker 1 can receive audio current, thereby realizing the process of converting electrical signals into sound signals.

[0051] In summary, the heat dissipation speaker 1 effectively solves the problem of heating and demagnetization after the power test of the heat dissipation speaker 1. In the present application, the heat dissipation speaker 1 is provided with a cooling component 50, and the cooling component 50 can effectively take away the heat, thereby ensuring that the temperature of the external yoke 41 and the first magnet 42, the second magnet 43 and the magnetic conductive plate 44 connected thereto will not rise excessively, thereby making it unnecessary for the magnet of the heat dissipation speaker 1 to rely on high-grade materials, and at the same time ensuring that the temperature does not exceed a predetermined degree during the power test, thereby maintaining stable magnetism. This not only significantly improves the performance and quality of the heat dissipation speaker 1, but also greatly reduces the production cost.

[0052] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A heat dissipation speaker, characterized in that: include: an outer frame; a vibration assembly; a voice coil assembly; a magnet assembly; and A cooling component; the vibration component, the voice coil component and the magnet component are all arranged in the outer frame, the two ends of the voice coil component are respectively connected to the vibration component and the magnet component, and the cooling component is arranged on the outside of the magnet component.

2. The heat dissipation speaker according to claim 1, wherein the cooling component comprises a cooling unit, a cooling liquid and a cooling cavity, wherein the cooling cavity is arranged in the cooling unit, the cooling unit surrounds the outside of the magnet assembly, and the cooling liquid is placed in the cooling cavity and contacts the outside of the magnet assembly.

3. The heat dissipation speaker according to claim 2, wherein the cooling unit is made of aluminum.

4. The heat dissipation speaker according to claim 3, wherein the magnet assembly comprises an external yoke, a first magnet, a second magnet and a magnetic conductive plate, the first magnet, the second magnet and the magnetic conductive plate are all located inside the external yoke, the external yoke is connected to the outer frame, and the magnetic conductive plate is located between the first magnet and the second magnet.

5. The heat dissipation speaker according to claim 4, wherein the magnet assembly further has a magnetic gap, wherein the magnetic gap is located between the external yoke and the first magnet and the second magnet, and the lower end of the voice coil assembly is suitable for being placed in the magnetic gap.

6. The heat dissipation speaker according to claim 5, wherein the outer frame comprises an upper frame and a lower frame, the upper frame and the lower frame are connected to each other, the vibration assembly is connected to the upper frame, the magnet assembly is connected to the lower frame, the upper frame comprises an upper frame body and an upper frame edge portion, the upper frame edge portion is integrally formed with the upper frame body, the lower frame comprises a lower frame body and a lower frame edge portion, the lower frame edge portion is integrally formed with the lower frame body.

7. The heat dissipation speaker according to claim 6, wherein the vibration component includes a suspension component and a drum-paper component, and the drum-paper component is connected to the suspension component.

8. The heat dissipation speaker according to claim 7, wherein the suspension assembly includes an outer suspension and an inner suspension, the outer suspension and the inner suspension are an integral structure, the drum paper assembly includes a vibration portion and a connecting portion, wherein the inner suspension portion of the suspension assembly extends inward to connect to the connecting portion of the drum paper assembly, the outer suspension portion of the suspension assembly extends outward to connect to the upper frame edge portion of the upper frame, and the vibration portion of the drum paper assembly is connected to the voice coil assembly.

9. The heat dissipation speaker according to claim 8, wherein the voice coil assembly includes a spring wave and a voice coil, the voice coil includes an upper voice coil portion and a lower voice coil portion, one end of the spring wave is connected to the edge of the lower frame, and the other end is connected to the voice coil, the lower voice coil portion extends to connect to the magnetic gap of the magnet assembly, and the upper voice coil portion extends to connect to the vibration portion of the drum paper assembly.

10. The heat dissipation speaker according to claim 9, wherein the outer frame further comprises a cap and a terminal, specifically, the cap covers the connection between the top of the voice coil and the drum-paper assembly, and the terminal is arranged on the upper frame to facilitate connection of external wires.

Citation Information

Patent Citations

  • Rear-mounted loudspeaker system

    CN110740410A

  • Super bass loudspeaker with heat dissipation function

    CN115802253A

  • Loudspeaker motor heat dissipation system

    CN118803491A

  • Liquid cooled speaker

    US6865281B1

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