Coaxial waterproof loudspeaker

Abstract

The utility model discloses a coaxial waterproof loudspeaker, and belongs to the technical field of loudspeakers. Comprising a coaxial loudspeaker, a housing, a waterproof layer, a rebound assembly and a voltage stabilization assembly. The shell covers the coaxial loudspeaker, a cavity is formed between the coaxial loudspeaker and the shell, the waterproof layer is connected to the upper end portion of the shell in a sealing and covering mode, the springback assembly is arranged between the waterproof layer and the shell, and the springback assembly is used for supporting the waterproof layer. The pressure stabilizing assembly is arranged on the shell, connected with the cavity and used for balancing the air pressure in the cavity. According to the waterproof loudspeaker, the air pressure balance inside and outside the loudspeaker is maintained, and the tone definition and the tone quality performance of the waterproof loudspeaker are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field especially relates to a coaxial waterproof loudspeaker. BACKGROUND

[0002] The coaxial loudspeaker is a kind of special design loudspeaker, its high pitch unit (high frequency loudspeaker) and bass unit (low frequency loudspeaker) are on the same axis, to realize better sound phase alignment and sound consistency, can provide balanced audio performance in smaller space, because more and more consumers grow in demand for waterproof sound, such as for outdoor party, beach, sound equipment in humid environment, therefore, need to design a loudspeaker with waterproof function.

[0003] The existing waterproof loudspeaker such as the China application of the ventilating waterproof device of electric horn with the application number 201920326084.6 shows that it includes shell, the inner side wall of shell is fixedly connected with first sound transmission waterproof layer through multiple clamping blocks, through the cooperation of first sound transmission waterproof layer, clamping block, dust screen, second sound transmission waterproof layer, fan blade, rotating shaft, heat dissipation hole etc., external water is blocked, at the same time, accumulated water is discharged into connecting pipe through branch pipe, auxiliary device heat dissipation, more water is discharged from the outer side wall of shell, at the same time, the slight vibration of loudspeaker body drives the up-and-down fanning of fan blade, so that heat is discharged from heat dissipation hole.

[0004] The prior art has the following defects: in the above-mentioned waterproof electric horn, the first sound transmission waterproof layer is connected to the shell by clamping blocks, the first sound transmission waterproof layer has insufficient compression resistance, and the first sound transmission waterproof layer cannot rebound after being impacted by water pressure, which may cause distortion of sound waves and reflection, resulting in unbalanced sound waves and distorted sound quality, thereby affecting the clarity of tone and the performance of sound quality. At the same time, due to the inability of the waterproof layer to rebound, the air pressure in the shell is affected, which may form air pressure resistance, resulting in uneven frequency response and reducing the actual sound effect of the loudspeaker, so there is room for improvement. UTILITY MODEL CONTENTS

[0005] To solve the above-mentioned technical problems, the utility model provides a coaxial waterproof loudspeaker to solve the technical problem that the waterproof layer of the existing waterproof loudspeaker has insufficient compression resistance, which destroys the balance between the internal air pressure and the external air pressure of the loudspeaker and reduces the actual sound effect of the loudspeaker.

[0006] The utility model realizes the following technical schemes:

[0007] A coaxial waterproof loudspeaker, comprising a coaxial loudspeaker, a shell, a waterproof layer, a rebound assembly and a pressure stabilizing assembly; the shell is arranged outside the coaxial loudspeaker, a cavity is formed between the coaxial loudspeaker and the shell, the waterproof layer is sealed to the upper end of the shell, the rebound assembly is arranged between the waterproof layer and the shell, the rebound assembly is used for supporting the waterproof layer, the pressure stabilizing assembly is arranged on the shell, the pressure stabilizing assembly is connected with the cavity, and the pressure stabilizing assembly is used for balancing the air pressure in the cavity.

[0008] Preferably, the rebound assembly comprises a support arm, a spring, a support plate and a support shaft, the support arm is arranged on the inner side wall of the shell, the upper end of the support arm is in abutment with the inner surface of the waterproof layer, the spring is arranged in the support arm, one end of the support shaft is in abutment with the spring, and the other end of the support shaft is fixed with the support plate, and the support plate is in abutment with the inner surface of the waterproof layer.

[0009] Preferably, the pressure stabilizing assembly comprises a pressure stabilizing groove, a fin and a pressure stabilizing film, the pressure stabilizing groove is arranged on the shell, a pressure stabilizing channel is arranged between the pressure stabilizing groove and the cavity, the pressure stabilizing film is arranged in the pressure stabilizing channel, the pressure stabilizing film is an elastic film, and the fin is arranged on the inner wall of the pressure stabilizing groove in an inclined mode.

[0010] Preferably, a dust cover is further arranged on the top of the shell, the dust cover is arranged on the side, away from the coaxial loudspeaker, of the waterproof layer, and the dust cover is arranged in a circular arc mode.

[0011] Preferably, a flow guide groove is further arranged on the shell, the flow guide groove is arranged in an inclined mode, and the top of the flow guide groove is connected with the lower end of the circular arc of the dust cover.

[0012] Preferably, a graphite coating is arranged on the inner wall of the pressure stabilizing groove.

[0013] Preferably, the pressure stabilizing groove is in a circular truncated cone structure, the pressure stabilizing groove comprises a first slot and a second slot, and the inner diameter of the second slot is greater than that of the first slot.

[0014] Preferably, four groups of the pressure stabilizing grooves are arranged along the circumference of the shell.

[0015] The coaxial waterproof loudspeaker has the following beneficial effects:

[0016] 1. The rebound assembly is arranged, so that the waterproof layer can rebound effectively under the impact of a large water flow, the air pressure in the cavity is stable, the pressure stabilizing assembly is arranged, the air pressure in the cavity can be kept relatively constant, the diaphragm can still effectively produce sound in a limit state, the attenuation of sound is reduced, and the sound quality performance is improved.

[0017] 2、Through the setting of the supporting plate, the contact area of the rebound assembly and the waterproof layer is increased, the pressure when the rebound assembly contacts the waterproof layer is reduced, the damage of the waterproof layer is effectively prevented, meanwhile, the uniform support of the waterproof layer under pressure change is ensured, thereby the deformation caused by local uneven pressure is reduced, the air pressure balance inside and outside the loudspeaker is helped to maintain, and the accuracy and clarity of sound output are ensured;

[0018] 3、Through the setting of the pressure stabilizing assembly, the stability of the air pressure in the chamber is ensured, through the design of the inclined fin, the external water flow entering the chamber is effectively blocked, the waterproof performance of the whole loudspeaker is greatly improved, and the internal coaxial loudspeaker is protected from water invasion; the pressure stabilizing assembly can not only absorb and disperse the external pressure impact, but also prevent the pressure impact from directly affecting the waterproof layer and the internal structure of the loudspeaker, thereby the durability and reliability of the loudspeaker are enhanced; by maintaining the stability of the air pressure in the chamber, the pressure stabilizing assembly can finally optimize the sound quality performance of the loudspeaker, and ensure the accuracy and clarity of sound transmission.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than limiting the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the background art, the drawings needed to be used in the embodiments of the utility model or the background art will be described below.

[0021] The drawings herein are incorporated into the description and form part of the description, which show the embodiments consistent with the present disclosure, and are used together with the description to illustrate the technical solutions disclosed by the utility model.

[0022] Figure 1 It is a whole structure schematic view of the loudspeaker of the utility model;

[0023] Figure 2 It is Figure 1 An enlarged view of A in the middle;

[0024] Figure 3 It is Figure 1 An enlarged view of B in the middle.

[0025] Legend: 1, coaxial loudspeaker; 2, shell; 3, waterproof layer; 4, rebound assembly; 41, supporting arm; 42, spring; 43, supporting plate; 44, supporting shaft; 5, pressure stabilizing assembly; 51, pressure stabilizing groove; 511, first slot; 512, second slot; 52, fin; 53, pressure stabilizing channel; 54, pressure stabilizing film; 6, chamber; 7, dust cover; 8, flow guide groove; 9, graphite coating. DETAILED DESCRIPTION

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", and "lower" are used interchangeably.

[0029] The orientations or positional relationships indicated by terms such as "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] For further illustrating the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the following will combine with the drawings and the preferred embodiments to specifically explain the specific implementation, structure, features and effects of the utility model, and the detailed explanation is as follows.

[0034] Please refer to Figures 1-3 A coaxial waterproof loudspeaker, comprising a coaxial loudspeaker 1, a shell 2, a waterproof layer 3, a rebound assembly 4 and a pressure stabilizing assembly 5; the shell 2 is covered outside the coaxial loudspeaker 1, a cavity 6 is formed between the coaxial loudspeaker 1 and the shell 2, the waterproof layer 3 is sealed and connected to the upper end of the shell 2, the rebound assembly 4 is arranged between the waterproof layer 3 and the shell 2, the rebound assembly 4 is used for supporting the waterproof layer 3, the pressure stabilizing assembly 5 is arranged on the shell 2, the pressure stabilizing assembly 5 is connected with the cavity 6, and is used for balancing the air pressure in the cavity 6.

[0035] The working principle of the waterproof loudspeaker in the application is as follows:

[0036] The coaxial loudspeaker 1 usually comprises a high-frequency unit and a low-frequency unit, and is designed to be coaxially arranged, so that sound can be emitted on the same axis, the phase difference is reduced, and the time alignment of the sound is ensured; when an electric signal enters the loudspeaker, the diaphragm in the loudspeaker starts to vibrate, thereby generating sound waves; the shell 2 is wrapped outside the coaxial loudspeaker 1 to form a closed cavity 6, which protects the internal components from moisture and effectively manages the movement of internal gas; the waterproof layer 3 is located at the upper end of the shell 2 to seal the cavity 6 and prevent moisture from entering, thereby ensuring the durability and stability of the equipment; the rebound assembly 4 is arranged between the waterproof layer 3 and the shell 2 to provide necessary support for the waterproof layer 3, so that the waterproof layer 3 can freely vibrate under a certain pressure without deforming; the pressure stabilizing assembly 5 is connected with the cavity 6 to adjust the air pressure in the cavity 6; when the loudspeaker works, the movement of the diaphragm will cause the air pressure in the cavity 6 to change, and the pressure stabilizing assembly 5 can balance this air pressure change to prevent sound distortion caused by uneven air pressure.

[0037] Through the adjustment of the pressure stabilizing assembly 5, the air pressure in the chamber 6 can be kept relatively constant, which is crucial for the performance of the loudspeaker, because the rapid movement of the diaphragm during operation can cause fluctuations in air pressure, and if the air pressure is not balanced, it can lead to distortion of the tone and deterioration of the sound quality; appropriate air pressure conditions can ensure that the diaphragm can still effectively sound under extreme conditions, reducing the attenuation of sound, thereby improving the sound quality performance; optimized air pressure conditions help to reduce the nonlinear response generated by the diaphragm during operation, allowing the loudspeaker to more faithfully reproduce the audio signal; isolate external environmental influences (such as humidity, air vibration, etc.), have a positive effect on audio playback in different places, making the frequency response of the loudspeaker more flat and natural, so that the listening experience is clearer and more realistic; the waterproof design improves the reliability of the loudspeaker in harsh environments (such as outdoors or humid environments), and the balance of air pressure also helps the stability of the loudspeaker after long-term use, so that its sound quality does not decrease significantly due to environmental factors.

[0038] When the loudspeaker is subjected to water pressure impact, the waterproof layer 3 will be affected by external strong pressure, and the pressure may cause the waterproof layer 3 to inwardly sag, causing the space between the diaphragm and the waterproof layer 3 to be compressed, thereby affecting its sound quality and sound output; based on this, in an embodiment, the rebound assembly 4 includes a support arm 41, a spring 42, a support plate 43, and a support shaft 44, the support arm 41 is arranged on the inner side wall of the shell 2, the upper end of the support arm 41 is in abutment with the inner surface of the waterproof layer 3, the spring 42 is arranged in the support arm 41, one end of the support shaft 44 is in abutment with the spring 42, and the other end is fixed with the support plate 43, the support plate 43 is in abutment with the inner surface of the waterproof layer 3.

[0039] The working principle of the rebound assembly 4 in this application is as follows:

[0040] When the speaker is impacted by water pressure, the spring 42 can provide an upward reaction force to balance the externally applied water pressure; the spring 42 penetrates the support arm 41, allowing the inward pressure in operation to be offset. For example, when the water pressure increases, the external pressure forces the waterproof layer 3 to move inward, while the spring 42 is in a compressed state, storing a certain potential energy. This elastic energy storage allows the waterproof layer 3 to quickly recover its original shape after the water pressure decreases or the external pressure is removed, thereby ensuring the normal operation, stability and sound quality of the speaker; the setting of the support plate 43 increases the contact area of the rebound assembly 4 and the waterproof layer 3, reduces the pressure when the rebound assembly 4 and the waterproof layer 3 are in contact, effectively prevents the damage of the waterproof layer 3, and at the same time ensures that the waterproof layer 3 can be uniformly supported when the pressure changes, thereby reducing the deformation caused by uneven local pressure, helping to maintain the air pressure balance inside and outside the speaker, and ensuring the accuracy and clarity of the sound output; due to the design of the rebound assembly 4, the waterproof layer 3 can effectively disperse and withstand pressure when it is impacted by external water pressure, rather than simply relying on the compression strength of the material itself, thereby improving the durability of the waterproof layer 3 and reducing structural fatigue caused by compression.

[0041] When the speaker is impacted by water flow, the waterproof layer 3 deforms, affecting the air pressure inside the shell 2, which may form air pressure resistance in the chamber 6, resulting in uneven frequency response of the speaker and reducing the actual sound effect of the speaker. Based on this, in an embodiment, the pressure stabilizing assembly 5 includes a pressure stabilizing groove 51, a fin 52 and a pressure stabilizing film 54, the pressure stabilizing groove 51 is arranged on the shell 2, a pressure stabilizing channel 53 is arranged between the pressure stabilizing groove 51 and the chamber 6, and the pressure stabilizing film 54 is arranged in the pressure stabilizing channel 53. The pressure stabilizing film 54 is an elastic film, and the fin 52 is arranged obliquely on the inner wall of the pressure stabilizing groove 51.

[0042] The working principle of the pressure stabilizing assembly 5 in the present application is as follows:

[0043] When the speaker is subjected to the pressure of external water flow (such as water impact), the waterproof layer 3 will be inwardly concave, causing the volume of the chamber 6 to change. At this time, the air pressure in the chamber 6 will fluctuate due to the deformation of the waterproof layer 3; the design of the pressure stabilizing groove 51 provides an effective air pressure regulating area. When the waterproof layer 3 is pressed by external water flow, the pressure stabilizing channel 53 allows the gas in the chamber 6 to maintain stability through the pressure stabilizing membrane 54, so as to maintain the stability of the air pressure in the chamber 6, which can reduce the air pressure fluctuation caused by water pressure change; the inclined fin 52 helps to form a flow around the flow area, and when the external water flow passes through the fin 52, the direction of the water flow will change, thereby increasing the difficulty of the water flow into the pressure stabilizing channel 53, effectively avoiding the intrusion of external water source into the chamber 6 through the pressure stabilizing groove 51, thereby enhancing the waterproof property; the inclined fin 52 helps to form a flow around the flow area, and when the external water flow passes through the fin 52, the direction of the water flow will change, thereby increasing the difficulty of the water vapor into the chamber 6, effectively ensuring that the external water source is difficult to intrude into the chamber 6 through the pressure stabilizing groove 51, thereby enhancing the waterproof property.

[0044] The main function of the pressure stabilizing assembly 5 is to maintain the stability of the air pressure in the chamber 6, and the stability of the air pressure is crucial for the normal sound wave generation of the speaker, because unbalanced air pressure will cause the decrease of sound quality and the distortion of sound; through the design of the inclined fin 52, the pressure stabilizing assembly 5 effectively blocks the external water flow into the chamber 6, greatly improves the waterproof performance of the entire speaker, and protects the internal coaxial speaker 1 from water invasion; the pressure stabilizing assembly 5 not only can absorb and disperse the external pressure impact, preventing it from directly affecting the waterproof layer 3 and the internal structure of the speaker, thereby enhancing the durability and reliability of the speaker; by maintaining the stability of the air pressure in the chamber 6, the pressure stabilizing assembly 5 can ultimately optimize the sound quality performance of the speaker, ensuring the accuracy and clarity of sound transmission.

[0045] To reduce the interference and damage caused by impurities to the loudspeaker, and at the same time reduce the influence of external water flow on the loudspeaker, based on this, in an embodiment, the top of the shell 2 is also provided with a dust cover 7, the dust cover 7 is arranged on the side of the waterproof layer 3 away from the coaxial loudspeaker 1, and the dust cover 7 is arranged in a circular arc shape. The main function of the dust cover 7 is to protect the inside of the loudspeaker from the invasion of dust, sand and other impurities. If impurities enter the inside of the loudspeaker, it may affect the generation of the front sound, cause the sound quality to decrease, and even damage the internal components of the loudspeaker; resist external impact: the dust cover 7 can also serve as the first line of defense against direct impact from small external objects, further protecting the structure and performance of the loudspeaker; the design of the dust cover 7 enables the loudspeaker to maintain the consistency and clarity of the sound quality under the influence of dust and impurities, to ensure the accurate propagation of sound; the dust cover 7 is arranged in a circular arc shape, which can effectively guide the flow of water vapor, and the circular arc shape helps to optimize the flow of water vapor, reducing the accumulation of water vapor on the loudspeaker components, reducing the risk of damage caused by water droplets; when the water vapor encounters the dust cover 7, the inclination and arc shape of the dust cover 7 will make the water vapor slide along the cover body, preventing it from penetrating into the chamber 6 of the loudspeaker, thereby protecting the internal structure and elements.

[0046] To effectively realize the diversion effect of external water flow and reduce the accumulation of water vapor on the shell 2, based on this, in an embodiment, the shell 2 is also provided with a diversion groove 8, the diversion groove 8 is arranged obliquely, and the top of the diversion groove 8 is connected with the lower end of the circular arc of the dust cover 7. The inclined design of the diversion groove 8 enables it to guide the flow of water vapor through the groove, ensuring that when water vapor comes into contact with the loudspeaker, it will not directly drip into the chamber 6 of the loudspeaker, but will flow out of the loudspeaker along the diversion groove 8; if the external water flow or water vapor passes through the dust cover 7, the connection and inclination angle of the diversion groove 8 can ensure that the water droplets slide down the groove wall, directing the water to the outside, reducing the possibility of water staying on the top of the loudspeaker, thereby reducing the risk of penetration into the inside; by effectively guiding the flow of water vapor, the diversion groove 8 can avoid the accumulation of water between the dust cover 7 and the waterproof layer 3. If there is no diversion groove 8, water vapor may form water accumulation inside the loudspeaker, thereby affecting the sound quality and even causing damage to the internal components; the diversion groove 8 ensures that the water vapor is naturally guided out, preventing it from accumulating in the key area; the diversion groove 8 can effectively reduce the direct invasion of water vapor, enhance the overall waterproof capability of the loudspeaker, and by providing an inclined flow path, the diversion groove 8 helps to ensure that external moisture cannot directly enter the chamber 6 under the protection of additional barriers, thereby protecting the coaxial loudspeaker 1 and other internal components intact.

[0047] When the speaker is in operation, the sound unit and electrical components generate heat, which accumulates in the chamber 6, affecting the normal operation of the speaker. Based on this, in an embodiment, a graphite coating 9 is provided on the inner wall of the pressure stabilization groove 51. Graphite is an excellent heat-conducting material with superior heat-conducting properties, which can effectively conduct heat. The graphite coating 9 can quickly conduct heat from the surface of the components to the outer wall of the pressure stabilization groove 51, thereby accelerating the dissipation of heat; the presence of the graphite coating 9 can help achieve uniform distribution of the internal temperature of the speaker, as graphite can quickly conduct heat, avoiding local overheating and preventing potential damage or performance degradation due to uneven temperature; uniform heat dissipation helps to prolong the service life of the speaker components, maintaining their stability and reliability; the presence of the graphite coating 9 can help achieve uniform distribution of the internal temperature of the speaker, as graphite can quickly conduct heat, avoiding local overheating and preventing potential damage or performance degradation due to uneven temperature. Uniform heat dissipation helps to prolong the service life of the speaker components, maintaining their stability and reliability.

[0048] To further enhance the waterproof effect of the speaker and ensure its normal operating state, based on this, in an embodiment, the pressure stabilization groove 51 is in the shape of a circular truncated cone, and includes a first slot 511 and a second slot 512, the inner diameter of the second slot 512 being larger than that of the first slot 511. The design of the first slot 511 and the second slot 512 of the pressure stabilization groove 51 forms a gradually decreasing channel, which means that the pressure difference that the water flow needs to overcome gradually increases when entering the chamber 6. When the water flow enters the smaller first slot 511 from the larger second slot 512, the fins 52 cause the first slot 511 to be closed under the action of the water flow, making it more difficult for the water flow to impact and penetrate the chamber 6, thereby achieving protection of the internal components of the speaker.

[0049] To effectively regulate and utilize the air pressure balance in the chamber 6 and ensure high-quality and outstanding performance of the sound output, based on this, in an embodiment, the pressure stabilization groove 51 is arranged in four groups along the circumference of the outer shell 2. The uniform arrangement of multiple pressure stabilization grooves 51 along the circumference can ensure that the external water pressure is evenly dispersed when applied to the waterproof layer 3, reducing the pressure that any single slot bears and reducing the risk of compression or damage to the parts located at the pressure center; uniform pressure distribution can also improve the stability of the overall structure, preventing physical deformation or structural damage caused by excessive pressure on a certain part; the arrangement of the pressure stabilization groove 51 array can more effectively regulate and utilize the air pressure balance in the chamber 6, as when the external pressure (such as water flow or air flow) changes, multiple pressure stabilization grooves 51 can simultaneously adjust the air pressure inside the chamber 6, thereby ensuring stable operation of the speaker and reducing air pressure fluctuations; the effect of multiple pressure stabilization grooves 51 can reduce nonlinear or sudden sounds caused by air pressure fluctuations, ensuring high-quality and outstanding performance of the sound output.

[0050] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A coaxial waterproof loudspeaker, characterized by: The utility model provides a waterproof coaxial speaker, including coaxial speaker (1), shell (2), waterproof layer (3), rebound assembly (4) and stabilizing pressure assembly (5), the shell (2) cover is located the coaxial speaker (1) outside, the coaxial speaker (1) with the shell (2) between form chamber (6), the waterproof layer (3) sealing cover is connected in the upper end portion of shell (2), the rebound assembly (4) is set up between waterproof layer (3) and shell (2), the rebound assembly (4) is used to support waterproof layer (3), the stabilizing pressure assembly (5) is set up on shell (2), the stabilizing pressure assembly (5) is connected with chamber (6), is used for balancing the air pressure in chamber (6).

2. A waterproof coaxial loudspeaker according to claim 1, characterized in that: The rebound assembly (4) includes support arm (41), spring (42), support plate (43) and support shaft (44), the support arm (41) is arranged on the inner side wall of the shell (2), the upper end of the support arm (41) is in abutment with the inner surface of the waterproof layer (3), the spring (42) is arranged in the support arm (41), one end of the support shaft (44) is in abutment with the spring (42), and the other end is fixed with the support plate (43), and the support plate (43) is in abutment with the inner surface of the waterproof layer (3).

3. The waterproof coaxial loudspeaker of claim 1, wherein: The stabilizing pressure assembly (5) includes stabilizing pressure groove (51), fin (52) and stabilizing pressure film (54), the stabilizing pressure groove (51) is arranged on the shell (2), the stabilizing pressure groove (51) is provided with a stabilizing pressure channel (53) between the chamber (6), the stabilizing pressure film (54) is arranged in the stabilizing pressure channel (53), the stabilizing pressure film (54) is an elastic film, and the fin (52) is arranged on the inner wall of the stabilizing pressure groove (51) in an inclined manner.

4. The waterproof coaxial loudspeaker of claim 1, wherein: The top of the shell (2) is further provided with a dust cover (7), the dust cover (7) is arranged on the side of the waterproof layer (3) away from the coaxial speaker (1), and the dust cover (7) is arranged in a circular arc shape.

5. A waterproof coaxial loudspeaker according to claim 4, characterized in that: The shell (2) is further provided with a flow guide groove (8), the flow guide groove (8) is arranged in an inclined manner, and the top of the flow guide groove (8) is connected with the lower end of the circular arc of the dust cover (7).

6. A waterproof coaxial loudspeaker according to claim 3, characterized in that: The inner wall of the stabilizing pressure groove (51) is provided with a graphite coating (9).

7. A waterproof coaxial loudspeaker according to claim 6, characterized in that: The stabilizing pressure groove (51) is in a circular truncated cone structure, and the stabilizing pressure groove (51) comprises a first slot (511) and a second slot (512), and the inner diameter of the second slot (512) is greater than that of the first slot (511).

8. A waterproof coaxial loudspeaker according to claim 7, characterized in that: Four groups of stabilizing pressure grooves (51) are arranged along the circumference of the shell (2).

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