Sound box

Abstract

The invention discloses a sound box, and relates to the technical field of sound equipment, the sound box comprises a shell, a first heat conduction plate, a heat dissipation plate and a plurality of heat conduction pipes, the shell forms a containing cavity, and a heat dissipation opening is formed in one side wall of the containing cavity; the first heat conduction plate is arranged in the containing cavity so as to divide the containing cavity into a power amplifier cavity and a battery cavity, a power amplifier circuit board is arranged in the power amplifier cavity, a battery module is arranged in the battery cavity, and the two opposite sides of the first heat conduction plate abut against the power amplifier circuit board and the battery module respectively; the heat dissipation plate is arranged at one end, far away from the power amplifier circuit board, of the battery module and is close to the heat dissipation opening; the two ends of each heat conduction pipe are connected with the heat dissipation plate and the first heat conduction plate respectively.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sound technology, in particular to a sound box. BACKGROUND

[0002] The sound box is an electronic device that converts electrical signals into sound signals, widely used in home entertainment, conference systems, public broadcasting and other fields. According to the connection method and use scene, the sound box can be divided into wired sound box and wireless sound box (such as Bluetooth sound box, Wi-Fi sound box, etc.). Among them, Bluetooth sound box is widely welcomed by consumers in recent years because of its portability and wireless connection characteristics.

[0003] The main heat sources of the sound box are concentrated in the battery and the power amplifier circuit, which has an important influence on the performance and service life of the product. In a high temperature environment, the power amplifier chip may drift or produce nonlinear distortion, resulting in a decrease in sound quality, which is manifested as rough and harsh sound, and even the phenomenon of broken sound. On the other hand, as the energy source of the sound box, the performance of the battery is also significantly affected by temperature. In order to ensure the charging efficiency and safety, the battery has strict requirements on the working temperature. However, in the pursuit of high endurance of the sound product, the battery often needs to carry more load and generate more heat. If the heat dissipation is not proper, not only the charging efficiency will be reduced, but also safety hazards may be caused, which limits the endurance of the sound box product. SUMMARY

[0004] The main purpose of the present application is to provide a sound box, which aims to effectively solve the overheating problem of the power amplifier circuit and the battery module during long time work through the innovative multi-layer heat conduction structure and high-efficiency heat dissipation design, to ensure that the sound box can stably output high-quality sound in various environments, and to prolong the service life of the product.

[0005] In order to achieve the above purpose, the sound box provided by the present application comprises: A shell is formed with a cavity, and a heat dissipation opening is formed in one side wall of the cavity; A first heat conduction plate is arranged in the cavity to divide the cavity into a power amplifier cavity and a battery cavity, a power amplifier circuit board is arranged in the power amplifier cavity, and a battery module is arranged in the battery cavity. The opposite sides of the first heat conduction plate are in abutment with the power amplifier circuit board and the battery module, respectively; A heat dissipation plate is arranged at one end of the battery module away from the power amplifier circuit board and close to the heat dissipation opening; and A plurality of heat conduction pipes are connected at both ends with the heat dissipation plate and the first heat conduction plate, respectively. BRIEF DESCRIPTION OF DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0007] Figure 1 A structural schematic diagram of an embodiment of a sound box of the present application is provided. Figure 2 A structural schematic diagram of an embodiment of a side wall of a battery cavity of the present application is provided. Figure 3 A structural schematic diagram of an embodiment of cooperation of a first heat-conducting plate, a heat-dissipating plate and a heat-conducting pipe of the present application is provided. Figure 4 A structural schematic diagram of an embodiment of a second heat-conducting plate of the present application is provided. Figure 5 A structural schematic diagram of another embodiment of a second heat-conducting plate of the present application is provided.

[0008] Explanation of reference numerals: 100, sound box; 1, shell; 11, power amplifier cavity; 12, battery cavity; 121, first channel; 122, second channel; 13, heat-dissipating port; 14, heat-dissipating cavity; 2, first heat-conducting plate; 21, heat-conducting support; 22, first heat-conducting glue layer; 23, second heat-conducting glue layer; 3, power amplifier circuit board; 31, heating element; 4, battery module; 41, battery cell; 5, heat-dissipating plate; 51, heat-dissipating piece; 6, heat-conducting pipe; 7, heat-insulating plate; 8, second heat-conducting plate; 81, main body part; 82, cladding part; 9, waterproof and air-permeable film.

[0009] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort also belong to the protection scope of the present application.

[0011] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0012] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0013] The present application provides a kind of sound box 100.

[0014] Please refer to Figure 1 And Figure 3 In an embodiment of the present application, the sound box 100 includes a shell 1, a first heat-conducting plate 2, a heat dissipation plate 5 and a plurality of heat-conducting pipes 6, the shell 1 is formed with a cavity, and a heat dissipation opening 13 is formed on one side wall of the cavity; the first heat-conducting plate 2 is arranged in the cavity to divide the cavity into an amplifier cavity 11 and a battery cavity 12, the amplifier circuit board 3 is arranged in the amplifier cavity 11, the battery module 4 is arranged in the battery cavity 12, and the first heat-conducting plate 2 is in abutment with the amplifier circuit board 3 and the battery module 4 on opposite sides; the heat dissipation plate 5 is arranged at one end of the battery module 4 away from the amplifier circuit board 3 and close to the heat dissipation opening 13; and the two ends of each heat-conducting pipe 6 are connected with the heat dissipation plate 5 and the first heat-conducting plate 2, respectively.

[0015] In the technical solution, the heat generated by the power amplifier circuit board 3 and the battery module 4 during operation is first absorbed by the first heat-conducting plate 2, the first heat-conducting plate 2 conducts the heat to the heat-conducting pipe 6, the heat-conducting pipe 6 further conducts the heat to the heat-dissipating plate 5, the heat-dissipating plate 5 dissipates the heat conducted from the heat-conducting pipe 6 to the external environment through the heat-dissipating port 13, the design of the heat-dissipating port 13 ensures that the heat can be smoothly discharged from the cavity, keeping the temperature inside the shell 1 stable; through the synergistic effect of the first heat-conducting plate 2, the heat-conducting pipe 6 and the heat-dissipating plate 5, the temperature of the power amplifier circuit board 3 and the battery module 4 is effectively controlled, avoiding the problems of power amplifier chip operating point drift and battery performance degradation, improving the performance and life of the sound box 100. By sharing one first heat-conducting plate 2 for the power amplifier circuit board 3 and the battery module 4, multiple effects such as efficient heat management, compact structure, cost optimization and reliability improvement can be achieved, especially suitable for scenes with high requirements for space, heat dissipation and energy efficiency; through effective heat dissipation design, the power amplifier chip operating point drift and nonlinear distortion in high temperature environment are avoided, ensuring the high quality output of sound, which is manifested as clear sound, no fuzziness and harshness; through the heat dissipation design, the temperature of the battery module 4 is effectively controlled, the charging efficiency and safety of the battery are improved, and the service life of the battery is prolonged; through efficient heat conduction and heat dissipation design, the stable operation of the sound box 100 in various environments is ensured, and the overall performance and life of the product are improved; through effective heat dissipation design, the safety hazards caused by improper heat dissipation are avoided, ensuring the safety of users during use.

[0016] Specifically, the shell 1 is an external protective structure of the sound box 100, used for accommodating and protecting various components inside, the shell 1 is formed with a cavity, one side wall of the cavity is provided with a heat dissipation opening 13 for discharging heat and keeping the internal temperature stable, the shell 1 can be made of plastic, metal or other durable materials to ensure the stability and durability of the structure. The first heat conduction plate 2 is arranged in the cavity and divides the cavity into an amplifier cavity 11 and a battery cavity 12, the amplifier circuit board 3 is arranged in the amplifier cavity 11, and the amplifier cavity 11 is also provided with a speaker assembly electrically connected with the amplifier circuit board 3, an audio outlet can be arranged on one side wall of the amplifier cavity 11, the audio outlet and the heat dissipation opening 13 are arranged opposite to each other, and a dustproof net is arranged on the periphery of the audio outlet to ensure sound transmission while protecting the components in the amplifier cavity 11; the battery module 4 is arranged in the battery cavity 12, and the opposite sides of the first heat conduction plate 2 abut against the amplifier circuit board 3 and the battery module 4 respectively, for conducting the heat generated by the amplifier circuit board 3 and the battery module 4 to the heat dissipation plate 5 through the heat conduction pipe 6, the first heat conduction plate 2 can be made of high-thermal-conductivity materials such as aluminum alloy or copper alloy to ensure efficient heat conduction. The heat dissipation plate 5 is arranged at one end of the battery module 4 away from the amplifier circuit board 3 and close to the heat dissipation opening 13, the heat dissipation plate 5 is used for dissipating the heat conducted from the first heat conduction plate 2 to the external environment, the heat dissipation plate 5 can be made of high-thermal-conductivity materials such as aluminum alloy or copper alloy, and can be designed with heat dissipation fins on the side of the heat dissipation plate 5 away from the battery module 4 to increase the heat dissipation area and improve the heat dissipation efficiency. The two ends of the plurality of heat conduction pipes 6 are connected with the heat dissipation plate 5 and the first heat conduction plate 2 respectively, the heat conduction pipe 6 is used for further conducting heat to ensure that the heat can be quickly conducted from the amplifier circuit board 3 and the battery module 4 to the heat dissipation plate 5, the heat conduction pipe 6 can be a vacuum heat pipe or a copper pipe, which has high heat conduction performance, and a plurality of heat conduction pipes 6 can be arranged according to actual needs and uniformly distributed on the opposite sides of the battery module 4 to make the heat uniformly transmitted to the heat dissipation plate 5 through the plurality of heat conduction pipes 6.

[0017] Please refer to Figure 1In an embodiment, a plurality of heat-generating elements 31 are arranged on the side of the power amplifier circuit board 3 facing the first heat-conducting plate 2, and a plurality of heat-conducting supports 21 are arranged on the side of the first heat-conducting plate 2 facing the power amplifier circuit board 3, each heat-conducting support 21 corresponding to a heat-generating element 31. The power amplifier circuit board 3 is provided with a plurality of heat-generating elements 31, such as power amplifier chips and main control chips, which generate a large amount of heat during operation. In order to improve the heat dissipation efficiency, a plurality of heat-conducting supports 21 are arranged on the side of the first heat-conducting plate 2 facing the power amplifier circuit board 3, each heat-conducting support 21 corresponding to a heat-generating element 31. The heat-conducting supports 21 can be made of high-thermal-conductivity materials, such as copper or aluminum alloy, to ensure that heat can be quickly conducted from the heat-generating elements 31 to the first heat-conducting plate 2. The heat-conducting supports 21 and the heat-generating elements 31 can be arranged to have the same size, and the heat-conducting supports 21 and the heat-generating elements 31 are matched in size, with the contact surfaces of the two completely adhered, reducing the uneven filling of air gaps or thermal interface materials, thereby reducing the contact thermal resistance and improving the heat conduction efficiency. The size of the heat-conducting supports 21 can also be set to be larger than the size of the heat-generating elements 31. The increase in the size of the heat-conducting supports 21 increases their volume and their ability to store heat, allowing them to absorb the instantaneous peak heat of the heat-generating elements 31, avoid sudden temperature rises, protect the elements from thermal shock, and diffuse heat from the heat center to the edge, reducing temperature gradients and preventing local overheating. By arranging the heat-conducting supports 21 between the heat-generating elements 31 and the first heat-conducting plate 2, the heat-generating elements 31 are directly cooled, significantly improving the heat dissipation efficiency, and the design of the heat-conducting supports 21 ensures that heat can be quickly conducted, reducing thermal resistance and improving heat conduction efficiency.

[0018] Please refer to Figure 1In an embodiment, each heat-conducting bracket 21 is provided with a first heat-conducting adhesive layer 22 on the side facing away from the first heat-conducting plate 2, and each first heat-conducting adhesive layer 22 is connected to a heat-generating element 31. The first heat-conducting adhesive layer 22, by being connected to the heat-generating element 31, can quickly transfer the heat generated by the heat-generating element 31 (such as a power amplifier chip) to the first heat-conducting plate 2 and the heat-dissipating plate 5, avoiding performance degradation or damage caused by local overheating; at the same time, as an adhesive sealing agent, the first heat-conducting adhesive layer 22 can firmly bond the electronic components and the heat-conducting bracket 21, while providing a sealing function to prevent dust and moisture from entering, thereby improving the reliability of the equipment. The first heat-conducting adhesive layer 22 can use a high-thermal-conductivity heat-conducting adhesive, such as heat-conducting silicone, to ensure efficient heat conduction. The use of the heat-conducting adhesive layer not only improves the heat conduction efficiency, but also enhances the contact stability between the heat-conducting bracket 21 and the heat-generating element 31, reducing thermal resistance. Moreover, the first heat-conducting adhesive layer 22 has elasticity, which can buffer the mechanical vibration between the heat-generating element 31 (such as a power amplifier chip) and the heat-conducting bracket 21, reducing the loosening of components, the fatigue or micro-cracks of solder joints caused by equipment vibration or impact. Even if the surfaces of the heat-conducting bracket 21 and the heat-generating element 31 are precisely machined, there may still be microscopic unevenness. The first heat-conducting adhesive layer 22 can fill these gaps, ensuring maximum actual contact area and further reducing contact thermal resistance.

[0019] Please refer to Figure 1 In an embodiment, the side of the first heat-conducting plate 2 facing the battery module 4 is provided with a second heat-conducting adhesive layer 23, and the second heat-conducting adhesive layer 23 is connected to the battery module 4. The second heat-conducting adhesive layer 23, by being connected to the battery module 4, can quickly transfer the heat generated by the battery module 4 to the first heat-conducting plate 2 and the heat-dissipating plate 5, avoiding damage or performance degradation of the battery module 4 caused by local overheating; at the same time, as an adhesive sealing agent, the second heat-conducting adhesive layer 23 can firmly bond the battery module 4 and the first heat-conducting plate 2, avoiding separation of the first heat-conducting plate 2 and the battery module 4 when the sound box 100 shakes, thereby improving the reliability of the battery module 4 heat dissipation; through the heat dissipation design, the temperature of the battery module 4 is effectively controlled, the charging efficiency and safety of the battery are improved, and the service life of the battery is prolonged; the battery module 4 may be subjected to vibration, drop or mechanical impact in vehicle-mounted, portable equipment or industrial scenarios, and the elasticity of the second heat-conducting adhesive 23 can buffer these energies, reducing stress concentration between battery monomers (such as battery cells 41), avoiding solder joint fracture, shell cracking or internal short circuit.

[0020] Please refer to Figure 2In an embodiment, the battery cavity 12 is spaced apart from the two opposite side walls to form a plurality of first grooves 121 and second grooves 122, each second groove 122 is located between any two adjacent first grooves 121, and each heat conduction pipe 6 is accommodated in a first groove 121. The first grooves 121 extend along the height direction of the cavity, and the openings of the first grooves 121 face the inside of the cavity for accommodating the heat conduction pipes 6; the second grooves 122 are parallel to the first grooves 121 and the openings of the second grooves 122 face the outside of the cavity, and each second groove 122 is located between two adjacent first grooves 121 to form an alternating arrangement. The second grooves 122 are directly exposed to the external environment, which increases the surface area of the shell 1 in contact with the external environment, and accelerates heat dissipation through natural convection and thermal radiation; part of the heat of the heat conduction pipes 6 is conducted to the shell 1 through the first grooves 121 and then quickly released through the second grooves 122, forming a double-channel heat dissipation of heat conduction in the pipes to the heat dissipation plate 5 and heat conduction in the pipes to the shell 1, which reduces the risk of local overload of the heat pipe; by arranging the two opposite side walls of the battery cavity 12 into a plurality of grooves, not only can the heat conduction pipes 6 be accommodated, but also the rigidity of the side walls of the battery cavity 12 can be ensured while reducing the amount of material used, achieving lightweight setting of the sound box 100 and improving the portability of the sound box 100.

[0021] Please refer to Figure 1 In an embodiment, the sound box 100 comprises a heat insulation plate 7, which is arranged at the end of the battery module 4 away from the first heat conduction plate 2, and the heat insulation plate 7 and the side wall of the cavity form a heat dissipation cavity 14, and the heat dissipation plate 5 is accommodated in the heat dissipation cavity 14. The heat insulation plate 7 can be made of aerogel felt composite material and is arranged at the end of the battery module 4 away from the first heat conduction plate 2; the edge of the heat insulation plate 7 and the side wall of the cavity of the sound box 100 can be sealed and connected through a buckle structure to form an independently closed heat dissipation cavity 14; the heat dissipation cavity 14 is formed by the heat insulation plate 7 and the side wall of the cavity, and the heat dissipation plate 5 is arranged in the cavity; the heat generated by the power amplifier circuit board 3 and the battery module 4 is transferred to the shell 1 through the heat conduction pipes 6 and to the heat dissipation plate 5 through the heat conduction pipes 6, realizing double-channel heat dissipation and improving the heat dissipation efficiency of the sound box 100; the arrangement of the heat insulation plate 7 not only forms an independently closed heat dissipation cavity 14 at one end of the cavity for accommodating the heat dissipation plate 5, so that heat is transferred to the external environment through the heat dissipation plate 5 and the heat dissipation port 13 to achieve heat dissipation, but also prevents the heat on the heat dissipation plate 5 from flowing back to the battery module 4, realizing one-way heat transfer of the battery module 4 and improving the reliability of the heat dissipation of the sound box 100.

[0022] Please refer to Figure 4 and Figure 5In an embodiment, the sound box 100 further comprises a second heat-conducting plate 8, the battery module 4 comprises a plurality of battery cells 41, any two adjacent battery cells 41 in the arrangement direction of the plurality of battery cells 41 are staggered, the second heat-conducting plate 8 is arranged between the first heat-conducting plate 2 and each battery cell 41, the second heat-conducting plate 8 is arranged corresponding to one end of each battery cell 41, and the heat insulation plate 7 is arranged corresponding to the other end of each battery cell 41, so as to enclose and fix the plurality of battery cells 41. Any two adjacent battery cells 41 in the arrangement direction of the battery cells 41 are staggered, and the second heat-conducting plate 8 is arranged corresponding to one end of each battery cell 41, so as to increase the contact area between the battery cell 41 and the second heat-conducting plate 8, the second heat-conducting plate 8 and the first heat-conducting plate 2 form a heat dissipation cavity, which is used for further conducting heat to the first heat-conducting plate 2; the heat insulation plate 7 is arranged corresponding to the other end of each battery cell 41, and the heat insulation plate 7 cooperates with the second heat-conducting plate 8 to ensure that the battery cell 41 is fixed in the battery cavity 12, and at the same time, the heat insulation plate 7 is used for preventing heat from being further transferred from the heat dissipation plate 5 to the battery module 4, so as to ensure effective heat dissipation. The shapes of the heat insulation plate 7 and the second heat-conducting plate 8 are adapted to the shape of the plurality of battery cells 41 after arrangement, which not only can increase the contact area of the heat insulation plate 7 and the second heat-conducting plate 8 with the battery cell 41, but also can well position and fix the arrangement position of the plurality of battery cells 41. The plurality of battery cells 41 can be arranged in a U shape, and the heat insulation plate 7 and the second heat-conducting plate 8 are also adapted to be arranged. The plurality of battery cells 41 can also be arranged in a W shape, and the heat insulation plate 7 and the second heat-conducting plate 8 are also adapted to be arranged. The plurality of battery cells 41 arranged in a W shape can not only meet the requirement of increasing the contact area of the heat insulation plate 7, the second heat-conducting plate 8 and the battery cell 41, but also can reduce the space occupied by the battery cell 41 to a certain extent. The arrangement mode and shape of the battery cell 41 are not limited in the scheme. In order to further reduce the thermal resistance, the second heat-conducting plate 8 abuts against the aluminum row of the plurality of battery cells 41. The aluminum row itself has high thermal conductivity, and is one of main heat conduction paths of the battery cell 41. The heat generated by the battery cell 41 in the charging and discharging process (mainly from internal resistance heating) is conducted to the aluminum row through the shell, the aluminum row quickly disperses the local heat to the whole module surface, avoids the formation of hot spots, and the planar structure of the aluminum row provides a larger contact surface for the second heat-conducting plate 8, so as to facilitate the optimization of thermal resistance.

[0023] Further, please refer to Figure 4 and Figure 5In an embodiment, the second heat-conducting plate 8 comprises a main body part 81 and two cladding parts 82, the two ends of the main body part 81 are connected with the two cladding parts 82 respectively, the main body part 81 is arranged corresponding to one end of each battery cell 41, and the two cladding parts 82 cladding the two battery cells 41 at the ends respectively. The arrangement of the main body part 81 can make most of the heat of each battery cell 41 be transferred to the first heat-conducting plate 2 through the main body part 81, and the arrangement of the cladding part 82 can further increase the contact area between the second heat-conducting plate 8 and each battery cell 41, thereby uniformly conducting the heat from each battery cell 41 of the battery module 4 to the first heat-conducting plate 2 and reducing the thermal resistance; the cladding part 82 directly wraps the end battery cell 41, thereby limiting the displacement of the battery cell 41 under vibration or impact working conditions through physical constraint, reducing the risk of connection loosening or pole breaking caused by relative movement between the battery cells 41; and the arrangement of the second heat-conducting plate 8 is directly for heat dissipation of the battery module 4, thereby significantly improving the heat dissipation efficiency.

[0024] Referring to Figure 1 In an embodiment, the heat dissipation plate 5 is provided with a heat dissipation piece 51 on the side away from the battery module 4. The heat dissipation plate 5 is arranged at the end of the battery module 4 away from the power amplifier circuit board 3 and close to the heat dissipation port 13, and is used for dissipating the heat conducted from the first heat-conducting plate 2 to the external environment. The heat dissipation plate 5 can be made of a high-thermal-conductivity material such as an aluminum alloy or a copper alloy and is designed with heat dissipation fins to increase the heat dissipation area and improve the heat dissipation efficiency. The heat dissipation plate 5 is provided with the heat dissipation piece 51 on the side away from the battery module 4. The heat dissipation piece 51 can be a heat dissipation fin, a cooling fin or a silent fan, and is not limited in this regard. The heat dissipation piece 51 further improves the heat dissipation efficiency and ensures that the heat can be quickly dissipated to the external environment. The heat dissipation plate 5 uniformly disperses the heat to the outside through the heat dissipation piece 51, and can also reduce the thermal gradient between the battery module 4 and the power amplifier circuit board 3, thereby reducing the risk of circuit board warping, soldering point falling off and other failure risks caused by thermal stress.

[0025] Referring to Figure 1 In an embodiment, the loudspeaker 100 comprises a waterproof and breathable film 9 connected with the periphery of the heat dissipation port 13. The waterproof and breathable film 9 allows air to pass through but prevents water and dust from entering the inside of the loudspeaker 100, thereby ensuring the waterproof performance of the loudspeaker 100 in a humid environment. The waterproof and breathable film 9 can be made of polytetrafluoroethylene (PTFE) or other materials and has good waterproof and breathable performance. When the temperature changes, the air inside the loudspeaker 100 expands or contracts, and the waterproof and breathable film 9 can balance the air pressure inside and outside to prevent the sealing structure from being damaged due to the pressure difference. The arrangement of the waterproof and breathable film 9 ensures the waterproof performance of the loudspeaker 100 in a humid environment, does not affect the heat dissipation effect, and improves the reliability and service life of the equipment.

[0026] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, within the technical concept of the present application, and based on the content of the present application and the accompanying drawings, are included in the patent protection scope of the present application.

Claims

1. A speaker, characterized in that, include: A housing having a cavity, wherein a heat dissipation vent is provided on one side wall of the cavity; A first heat-conducting plate is disposed within the cavity to divide the cavity into an amplifier cavity and a battery cavity. The amplifier cavity contains an amplifier circuit board, and the battery cavity contains a battery module. The opposite sides of the first heat-conducting plate abut against the amplifier circuit board and the battery module, respectively. A heat sink is disposed at the end of the battery module away from the power amplifier circuit board and close to the heat dissipation vent. as well as Multiple heat conduction tubes, each of which is connected at both ends to the heat sink and the first heat conduction plate, respectively.

2. The speaker as described in claim 1, characterized in that, The power amplifier circuit board has multiple heating elements spaced apart on the side facing the first heat-conducting plate, and the first heat-conducting plate has multiple heat-conducting brackets spaced apart on the side facing the power amplifier circuit board, with each heat-conducting bracket corresponding to one heating element.

3. The speaker as described in claim 2, characterized in that, Each of the heat-conducting brackets has a first heat-conducting adhesive layer on the side facing away from the first heat-conducting plate, and each of the first heat-conducting adhesive layers is connected to a heating element.

4. The speaker as described in any one of claims 1 to 3, characterized in that, The first heat-conducting plate has a second thermally conductive adhesive layer on the side facing the battery module, and the second thermally conductive adhesive layer is connected to the battery module.

5. The speaker as described in any one of claims 1 to 3, characterized in that, The battery cavity has multiple first channels and second channels spaced apart on its opposite side walls, each second channel being located between any two adjacent first channels, and each heat conduction tube being housed within a first channel.

6. The speaker as described in any one of claims 1 to 3, characterized in that, The speaker includes a heat insulation plate, which is disposed at the end of the battery module away from the first heat-conducting plate. The heat insulation plate and the side wall of the cavity enclose a heat dissipation cavity, and the heat dissipation plate is housed in the heat dissipation cavity.

7. The speaker as described in claim 6, characterized in that, The speaker also includes a second heat-conducting plate. The battery module includes multiple battery cells, with any two adjacent battery cells arranged alternately in the arrangement direction of the multiple battery cells. The second heat-conducting plate is disposed between the first heat-conducting plate and each of the battery cells. The second heat-conducting plate is disposed at one end of each of the battery cells, and the heat insulation plate is disposed at the other end of each of the battery cells, so as to enclose and fix the multiple battery cells.

8. The speaker as described in claim 7, characterized in that, The second heat-conducting plate includes a main body and two covering parts. The two ends of the main body are respectively connected to the two covering parts. The main body is provided corresponding to one end of each of the battery cells, and the two covering parts respectively cover the two battery cells at the ends.

9. The speaker as described in any one of claims 1 to 3, characterized in that, The heat sink has a heat dissipation component on the side facing away from the battery module.

10. The speaker as described in any one of claims 1 to 3, characterized in that, The speaker includes a waterproof and breathable membrane, which is connected to the periphery of the heat dissipation vent.

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