Intelligent helmet

Abstract

The utility model discloses an intelligent helmet which comprises a helmet body and a loudspeaking assembly, a mounting cavity and an exhaust channel are formed in the helmet body, a first exhaust port is formed in the helmet body, and the first exhaust port is communicated with the exhaust channel; the loudspeaking assembly comprises a loudspeaker, the loudspeaker is arranged in the mounting cavity, and the mounting cavity is provided with a communicating opening which communicates with the exhaust channel. According to the utility model, the exhaust channel is arranged on the helmet, so that back pressure air on the rear side of the horn can be exhausted, opposite-phase sound waves on the front side and the rear side of the horn are prevented from being mutually counteracted in a narrow space, and a better sound effect is provided; and meanwhile, the helmet does not cover human ears, so that the user can hear environmental sound while enjoying music, and the use is safer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a helmet technical field especially relates to an intelligent helmet. BACKGROUND

[0002] With the progress of science and technology and the improvement of people's demand for safety and convenience, intelligent wearable devices gradually enter people's daily life. As a kind of wearable device integrating safety, communication, entertainment and other functions, intelligent helmet with audio equipment is receiving more and more attention.

[0003] However, the traditional helmet often has limitations in design and function. The audio equipment, especially the loudspeaker built-in in the closed or semi-closed space (such as the inside of the helmet), often faces the problem of back pressure effect. Specifically, when the loudspeaker works, back pressure air will be generated behind the loudspeaker. If these air cannot be discharged in time, the vibration of the loudspeaker will be limited, which will affect the clarity and loudness of the sound. In addition, back pressure may also cause reflection and mutual cancellation of sound waves in a small space, especially when the sound waves are opposite in phase, this phenomenon is particularly obvious, resulting in the decline of sound quality.

[0004] Therefore, it is particularly important to design an intelligent helmet that can ensure the safety of the wearer and provide high-quality audio experience. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome at least one of the defects of the prior art described above, the utility model provides an intelligent helmet, which sets an exhaust passage on the helmet to discharge the back pressure air behind the loudspeaker, so as to prevent the opposite phase sound waves in front of the loudspeaker and behind the loudspeaker from mutually canceling in the installation cavity.

[0006] The utility model adopts the technical scheme that:

[0007] An intelligent helmet, comprising,

[0008] A helmet, which is provided with an installation cavity and an exhaust passage, and is provided with a first exhaust port, the first exhaust port is communicated with the exhaust passage;

[0009] A loudspeaker assembly, which comprises a loudspeaker, the loudspeaker is arranged in the installation cavity, the installation cavity is provided with a communication port, and the communication port is communicated with the exhaust passage.

[0010] Further, the helmet comprises a helmet shell and a buffer layer, the buffer layer is arranged on the inner side of the helmet shell, and the installation cavity is integrally formed on the helmet shell or the buffer layer.

[0011] Further, the installation cavity is also provided with a first sound guide port, and the first sound guide port is longitudinally extended from the installation cavity to the lower end of the helmet.

[0012] Further, the loudspeaker assembly comprises a shell mounted in the mounting cavity, the shell is provided with a containing cavity in which the loudspeaker is mounted, the shell is provided with a second sound guide opening and a second exhaust opening, the second sound guide opening is arranged opposite to the first sound guide opening, and the second exhaust opening is arranged opposite to the communication opening.

[0013] Further, the loudspeaker has a first side and a second side arranged oppositely, the first side is spaced apart from one side of the mounting cavity or the containing cavity to form a sound guide interval, the sound guide interval is communicated with the first sound guide opening or the second sound guide opening, and the second side is spaced apart from the other side of the mounting cavity or the containing cavity to form an exhaust interval, the exhaust interval is communicated with the communication opening or the second exhaust opening.

[0014] Further, the loudspeaker assembly further comprises an exhaust pipe connected to the communication opening or the second exhaust opening, and the exhaust pipe is mounted in the exhaust channel, and the opening at the end of the exhaust pipe is arranged opposite to the first exhaust opening.

[0015] Further, the exhaust pipe comprises a circular arc groove having an opening in the radial direction of the exhaust pipe, and the opening is tightly fitted with the side wall of the exhaust channel to seal the radial outer periphery of the exhaust pipe.

[0016] Further, a gas guide channel is arranged between the helmet shell and the buffer layer, the gas guide channel is integrally formed in the helmet shell, the buffer layer is provided with a mounting opening, one end of the gas guide channel is communicated with the mounting opening, and the other end of the gas guide channel is communicated with the first exhaust opening, and the mounting opening is communicated with the exhaust channel and the gas guide channel.

[0017] Further, the left and right sides of the helmet are both provided with the loudspeaker assembly, and two first exhaust openings are arranged at the back side of the helmet, and the two first exhaust openings are respectively communicated with two exhaust pipes.

[0018] Further, the front side of the helmet is further provided with an air inlet channel, and the air inlet channel penetrates the inside and outside of the helmet.

[0019] In summary, the intelligent helmet provided by the present application has the following technical effects:

[0020] 1) The back pressure air generated at the rear side of the loudspeaker can enter the exhaust channel through the communication port of the mounting cavity and finally be discharged through the first exhaust port on the helmet. The exhaust channel reduces the possibility of sound wave reflection and mutual interference in the mounting cavity by timely discharging the air at the rear side of the loudspeaker, thereby avoiding the cancellation of sound waves and ensuring the integrity and continuity of the sound. At the same time, the back pressure effect at the rear side of the loudspeaker is reduced, so that the loudspeaker can vibrate more freely, thereby producing purer and fuller sound.

[0021] 2) The exhaust channel is built-in in the helmet, which can reduce the generation of wind noise, so that the user is more quiet and comfortable when wearing the helmet. And the application utilizes the ventilation port on the helmet for realizing ventilation between the inside and outside of the helmet as the first exhaust port, thereby reducing the number of slots of the helmet by utilizing the existing structure and ensuring the strength of the helmet. At the same time, the first exhaust port can also reduce the humidity and temperature accumulation inside the helmet and improve the comfort of wearing.

[0022] 3) The helmet wraps the head while not covering the ears of the person, and the loudspeaker assembly is directed to propagate sound towards the ears of the person, so that the user can maintain the auditory perception of the surrounding environment while listening to audio, thereby improving the riding safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the helmet of the utility model embodiment;

[0024] Figure 2 It is a longitudinal section schematic view of the helmet of the utility model embodiment along the front-rear direction;

[0025] Figure 3 It is a structure schematic view of the loudspeaker assembly of the utility model embodiment;

[0026] Figure 4 It is a section schematic view of the shell of the utility model embodiment;

[0027] Figure 5 It is a section schematic view of the shell and the loudspeaker assembly of the utility model embodiment;

[0028] Figure 6 It is Figure 1 structure schematic view of another view;

[0029] Figure 7 It is a rear view of the helmet of the utility model embodiment.

[0030] Among them, the meaning of the reference signs is as follows:

[0031] 1, helmet; 11, mounting cavity; 110, communication port; 12, exhaust passage; 13, first exhaust port; 14, first sound guide port; 15, helmet shell; 16, buffer layer; 17, air guide passage; 18, air inlet passage; 181, air inlet; 2, shell; 20, containing cavity; 21, exhaust pipe; 22, circular arc groove; 23, exhaust interval; 3, horn. DETAILED DESCRIPTION

[0032] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0033] In the description of the utility model, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the directions or position relations shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0035] Referring to Figure 1 The utility model discloses an intelligent helmet, which comprises a helmet 1 and a loudspeaker assembly. Specifically, the helmet 1 is provided with a mounting cavity 11 and an exhaust passage 12. Referring to Figure 2 and Figure 6 The helmet 1 is provided with a first exhaust port 13, which is in communication with the exhaust passage 12. The loudspeaker assembly comprises a horn 3, which is arranged in the mounting cavity 11. The mounting cavity 11 is provided with a communication port 110, which is in communication with the exhaust passage 12.

[0036] Based on the above structure, when using the intelligent helmet of the utility model, the user can wear the helmet 1 on the head, and then pair the intelligent helmet with the user's mobile phone, music player or other audio equipment through Bluetooth or other wireless connection methods. In this way, the user can play music, answer the phone or enjoy other audio content through the built-in loudspeaker assembly of the helmet 1.

[0037] During the process of playing audio, the vibration of the diaphragm in front and back of the loudspeaker 3 causes the sound waves to be generated in front and back of the loudspeaker 3. However, the sound waves generated in front and back of the loudspeaker 3 may meet and cancel each other in some cases, especially when the phases of the sound waves are opposite. The sound wave cancellation mainly affects low frequency sound waves, because the wavelength of the low frequency sound waves is longer, and it is more likely to cause phase difference in a limited space. The bass cancellation will cause the bass effect to be weakened, which will greatly reduce the sound quality experience.

[0038] Meanwhile, when the diaphragm vibrates backward, it will compress the air in the back of the loudspeaker 3; this part of the compressed air will try to bounce back to the original state when the diaphragm returns to its original position, but due to the continuous vibration of the diaphragm, it will be continuously compressed and bounced, thus forming a dynamic compressed air area, i.e. back pressure air, in the back of the loudspeaker 3. If these airs cannot be discharged in time, they will accumulate in the mounting cavity 11, which will hinder the vibration of the loudspeaker 3, and thus slow down the response speed of the loudspeaker 3, affecting the clarity of the sound.

[0039] The present application sets a communication port 110 on the mounting cavity 11, which communicates with the exhaust channel 12, so that the back pressure air generated in the back of the loudspeaker 3 can enter the exhaust channel 12 through the communication port 110 of the mounting cavity 11, and finally be discharged through the first exhaust port 13 on the helmet 1. In this way, the exhaust channel 12 reduces the possibility of reflection and mutual interference of low frequency sound waves in the mounting cavity 11 by discharging the air in the back of the loudspeaker 3 in time, thereby avoiding the cancellation of low frequency sound waves and improving the low frequency sound quality, which makes the bass part more full and robust, and improves the overall auditory experience. At the same time, it reduces the back pressure effect in the back of the loudspeaker 3, so that the loudspeaker 3 can vibrate more freely, thus producing purer and fuller sound.

[0040] In addition, when the loudspeaker 3 works for a long time or is in a high power state, it may generate a large amount of heat. The exhaust channel 12 helps to discharge these heat outside the helmet 1 in time, preventing the loudspeaker 3 from overheating and causing potential safety problems.

[0041] It should be noted that if the exhaust channel 12 is externally placed outside the helmet 1 in the form of a pipe, the external exhaust pipe may become one of the sources of wind noise when riding or moving at high speed. Therefore, the present application embeds the exhaust channel 12 in the helmet 1, which can reduce the generation of such wind noise, making the user more quiet and comfortable when wearing the helmet 1. It is worth noting that the present application utilizes the ventilation port on the helmet 1 for realizing ventilation between the inside and outside of the helmet 1 as the first exhaust port 13, which utilizes the existing structure without the need to additionally slot the helmet 1 as the first exhaust port 13, thereby reducing the number of slots of the helmet 1, thus ensuring the strength of the helmet 1; at the same time, the first exhaust port 13 can also reduce the humidity and temperature accumulation inside the helmet 1, improving the comfort of wearing.

[0042] In addition, the helmet 1 does not cover the ears of the person, and the sound is directed to the ears of the person through the loudspeaker assembly, so that the user can maintain the auditory perception of the surrounding environment while wearing, thereby improving the riding safety.

[0043] Further, referring to Figure 2 , the helmet 1 comprises a helmet shell 15 and a buffer layer 16, and the buffer layer 16 is arranged on the inner side of the helmet shell 15. The mounting cavity 11 is integrally formed on the helmet shell 15 or the buffer layer 16.

[0044] Specifically, the helmet shell 15 is usually made of high-strength plastic or composite material, which can withstand impact and collision; the buffer layer 16 is made of soft foam material or fabric to provide additional cushioning and protection. The buffer layer 16 can be made by foaming process to form a foam layer on the helmet shell 15.

[0045] Therefore, the shape and size of the mounting cavity 11 can be directly integrated into the structure of the helmet shell 15 by injection molding, press molding and other processes. When the mounting cavity 11 is formed on the buffer layer 16, the shape and size of the mounting cavity 11 can be defined by the mold before foaming, and then the buffer layer 16 is formed by foaming on the inner side of the helmet shell 15 and outside the mold, so that the mounting cavity 11 is integrally formed in the buffer layer 16.

[0046] In addition, the mounting cavity 11 can also be formed by assembling after the helmet shell 15 and the buffer layer 16 are respectively manufactured; for example, corresponding openings or grooves are formed on the helmet shell 15, and then the buffer layer 16 is covered on the inner side of the helmet shell 15 to form a closed mounting cavity 11.

[0047] Therefore, the mounting cavity 11 provides a stable mounting environment for the loudspeaker assembly, preventing it from moving inside the helmet 1 or being damaged by external impact, which helps to prolong the service life of the loudspeaker assembly and improve its performance stability. At the same time, the mounting cavity 11 is connected with the exhaust channel 12, which can timely exhaust the air behind the loudspeaker 3, reducing the bass cancellation.

[0048] Further, the mounting cavity 11 is also provided with a first sound guide port 14, and the first sound guide port 14 extends longitudinally from the mounting cavity 11 to the lower end of the helmet 1.

[0049] Since the helmet 1 does not cover the ears of the person when worn, the sound waves generated in front of the loudspeaker 3 can be transmitted downward to the ears of the person through the first sound guide port 14. The first sound guide port 14 can direct the sound to the ears of the person, which helps to reduce the reflection and attenuation of sound waves in the mounting cavity 11 and the helmet 1, and ensures that the sound waves can reach the ears of the user with minimal loss.

[0050] In addition, in order to make full use of the longitudinal space inside the helmet 1, the loudspeaker 3 can be installed vertically in the mounting cavity 11, and the front side of the loudspeaker 3 faces the inside of the helmet 1. At the same time, sound guide holes can be provided on the side of the mounting cavity 11, and the sound guide holes pass through the buffer layer 16 in the transverse direction, so that part of the sound from the front side of the loudspeaker 3 is directly transmitted forward, transmitted to the user's scalp through the sound guide holes, and then transmitted to the human ear; the other part of the sound is transmitted downward and guided to the human ear through the first sound guide hole 14, so that the sound effect is more stereo and around the ear. Among them, since the loudspeaker 3 can be installed vertically, the loudspeaker 3 can adopt a diaphragm with a larger aperture, so that the sound emitted by the loudspeaker 3 has more bass parts, which can improve the sound quality, increase the sound thickness, and improve the balance of the listening experience.

[0051] Therefore, since the helmet 1 does not cover the human ear, the user will not feel oppression or discomfort when wearing. At the same time, the setting of the first sound guide hole 14 enables the sound wave to be directly and directionally transmitted to the ear position, reducing the discomfort caused by wearing earphones and other devices.

[0052] Further, referring to Figure 3 , the loudspeaker assembly includes a shell 2, referring to Figure 1 and Figure 2 , the shell 2 is installed in the mounting cavity 11, referring to Figure 4 and Figure 5 , the shell 2 is provided with a containing cavity 20, and the loudspeaker 3 is installed in the containing cavity 20. Among them, the shell 2 is provided with a second sound guide hole and a second exhaust hole, and the second sound guide hole is arranged opposite to the first sound guide hole 14, and the second exhaust hole is arranged opposite to the communication hole 110.

[0053] On the basis of this structure, in use, the shell 2 is installed in the mounting cavity 11 of the helmet 1, serving as a carrier for the loudspeaker 3 and other acoustic components; the loudspeaker 3 is installed in the containing cavity 20 of the shell 2, being the main component for generating sound waves. The shell 2 is provided with a second sound guide hole, and the second sound guide hole is arranged opposite to the first sound guide hole 14 on the helmet 1, so that the sound waves generated by the loudspeaker 3 in the shell 2 can be guided to the outside of the helmet 1, especially to the direction of the user's ear. The second exhaust hole is arranged opposite to the communication hole 110 inside the helmet 1, so that the air behind the loudspeaker 3 in the shell 2 can be exhausted to the exhaust passage 12.

[0054] Among them, the loudspeaker 3 is installed in the shell 2, and the shell 2 is installed as a whole in the mounting cavity 11 of the helmet 1, simplifying the installation process. This modular design enables the loudspeaker 3 and the shell 2 to be replaced or repaired as a unit without disassembling the entire helmet 1. The shell 2 can provide a strong protective layer for the loudspeaker 3, effectively absorbing and dispersing various impacts, vibrations or collisions during outdoor use of the helmet 1, and protecting the loudspeaker 3 from damage.

[0055] Meanwhile, the accommodating cavity 20 formed inside the shell 2 provides a relatively closed and stable acoustic environment for the horn 3; such an environment helps to reduce the reflection, diffraction and attenuation of sound waves during propagation, thereby improving the purity and clarity of sound. In addition, the shell 2 can also be designed according to acoustic principles, such as using sound-absorbing materials, adjusting the shape of the cavity, etc., to further optimize the sound effect.

[0056] The second sound guide port is arranged to concentrate and clearly propagate the sound waves generated by the horn 3 in the shell 2 to the user's ear position, thereby improving the clarity and loudness of the sound effect. In addition, the cooperation of the second exhaust port and the communication port 110 ensures that the air behind the horn 3 can be smoothly discharged to the outside of the helmet 1.

[0057] Further, the horn 3 has a first side and a second side arranged oppositely, wherein the first side is spaced apart from one side of the mounting cavity 11 or the accommodating cavity 20 to form a sound guide interval, and the sound guide interval is in communication with the first sound guide port 14 or the second sound guide port. At the same time, the second side is spaced apart from the other side of the mounting cavity 11 or the accommodating cavity 20 to form an exhaust interval 23, and the exhaust interval 23 is in communication with the communication port 110 or the second exhaust port.

[0058] It should be noted that the first side is the outer side of the diaphragm, which is also the front side of the horn 3, directly facing and interacting with the air, and is the direct source of sound generation. When the audio signal passes through the voice coil to generate a magnetic field and interacts with the magnet provided by the horn 3, the diaphragm will vibrate back and forth, and the first side directly pushes the surrounding air molecules forward to generate sound waves and propagate into the air. The second side is located at the rear side of the horn 3 and is arranged opposite to the first side.

[0059] On the basis of this structure, during assembly, the horn 3 and other acoustic components can be directly installed in the mounting cavity 11, or the shell 2 is installed in the mounting cavity 11 after the horn 3 and other acoustic components are installed in the accommodating cavity 20 of the shell 2, and then the loudspeaker assembly is connected to the audio source through appropriate audio lines or wireless methods. When the audio signal is sent to the loudspeaker assembly, the diaphragm reciprocates in the front and rear directions towards the first side and the second side, thereby generating sound waves on both the front and rear sides of the horn 3.

[0060] When the horn 3 is directly installed in the mounting cavity 11, the first side of the horn 3 is spaced apart from one side of the mounting cavity 11 to form a sound guide interval, and the sound guide interval is in communication with the first sound guide port 14, so that the sound waves in the sound guide interval can be directly propagated to the outside of the helmet 1 through the first sound guide port 14. The second side of the horn 3 is spaced apart from the other side of the mounting cavity 11 to form an exhaust interval 23, and the exhaust interval 23 is in communication with the communication port 110, so that the air in the exhaust interval 23 can be directly discharged to the exhaust passage 12 through the communication port 110.

[0061] When the loudspeaker 3 is installed in the accommodating cavity 20 of the shell 2 first, and then the shell 2 is installed in the installation cavity 11, the first side of the loudspeaker 3 is spaced from one side of the accommodating cavity 20 to form a sound guide interval, and the sound guide interval is communicated with the second sound guide opening, and the second sound guide opening is arranged opposite to the first sound guide opening 14, so that the sound wave in the sound guide interval is first guided out of the installation cavity 11 through the second sound guide opening, and then transmitted to the outside of the helmet 1 through the first sound guide opening 14. The second side of the loudspeaker 3 is spaced from the other side of the accommodating cavity 20 to form an air exhaust interval 23, and the air exhaust interval 23 is communicated with the second air exhaust opening, and the second air exhaust opening is arranged opposite to the communication opening 110, so that the air in the air exhaust interval 23 is first exhausted through the second air exhaust opening, and then guided out of the shell 2 through the communication opening 110 and the air exhaust channel 12.

[0062] The sound wave is formed in the sound guide interval and is preliminarily diffused and arranged, and the sound wave after the preliminary diffusion is then guided out of the external environment through the sound guide opening, so that the sound guide interval helps to optimize the directivity and diffusion of the sound, so that the sound can be clearly and uniformly transmitted to the human ear. At the same time, the second side of the loudspeaker 3 (the side facing the air exhaust interval 23) will generate back pressure during vibration, which will cause the air in the air exhaust interval 23 to be exhausted out of the shell 2 through the air exhaust opening and the air exhaust channel 12; the air at the second side of the loudspeaker 3 is exhausted, so that the sound wave at the second side in the shell 2 will not be cancelled by the sound wave at the first side, thereby improving the low-frequency sound quality.

[0063] Further, the loudspeaker assembly further comprises an air exhaust pipe 21, and the air exhaust pipe 21 is connected to the communication opening 110 or the second air exhaust opening, and the air exhaust pipe 21 is installed in the air exhaust channel 12. The end opening of the air exhaust pipe 21 is arranged opposite to the first air exhaust opening 13.

[0064] Specifically, when the loudspeaker 3 is directly installed in the installation cavity 11, the air exhaust pipe 21 is arranged in the air exhaust channel 12 and connected to the communication opening 110 of the installation cavity 11, so that the air exhaust interval 23 in the installation cavity 11 is communicated with the air exhaust pipe 21 through the communication opening 110, and the air in the air exhaust interval 23 enters the air exhaust pipe 21 through the communication opening 110, and is exhausted out of the air exhaust pipe 21 towards the first air exhaust opening 13.

[0065] When the loudspeaker 3 is installed in the accommodating cavity 20 of the shell 2 first, and then the shell 2 is installed in the installation cavity 11, one end of the air exhaust pipe 21 is connected to the second air exhaust opening of the shell 2, and the other end of the air exhaust pipe 21 extends into the air exhaust channel 12 through the communication opening 110. In use, the air in the air exhaust interval 23 enters the air exhaust pipe 21 through the second air exhaust opening, and is exhausted out of the air exhaust pipe 21 towards the first air exhaust opening 13.

[0066] The end opening of the exhaust pipe 21 is arranged opposite to the first exhaust port 13, allowing the air in the exhaust interval 23 to be smoothly discharged. Meanwhile, the arrangement of the exhaust pipe 21 can also reduce the reflection and echo of sound during propagation, helping to reduce noise and improve sound quality.

[0067] Thus, the exhaust pipe 21 is designed as an independent component in a modular manner, facilitating disassembly and replacement. When the exhaust pipe 21 is damaged or needs to be cleaned, the user can easily maintain it without replacing the entire helmet 1. Meanwhile, exhaust pipes 21 of different lengths, diameters, and curvatures can be selected to optimize the exhaust effect.

[0068] It should be noted that when the exhaust pipe 21 is not arranged, the exhaust channel 12 can also directly guide the air in the exhaust interval 23 to be discharged. Specifically, the exhaust channel 12 can be formed in the same manner as the mounting cavity 11, i.e., the mounting cavity 11 and the strip-shaped groove are integrally formed on the helmet shell 15 or the buffer layer 16, and the strip-shaped groove defines the exhaust channel 12.

[0069] Further, referring to Figure 3 , the exhaust pipe 21 includes a circular arc groove 22, and the circular arc groove 22 has an opening along the radial direction of the exhaust pipe 21, wherein the opening is tightly fitted with the side wall of the exhaust channel 12 to seal the radial outer periphery of the exhaust pipe 21.

[0070] On this basis, during assembly, the circular arc groove 22 of the exhaust pipe 21 can be aligned with the side wall of the exhaust channel 12, and the opening of the circular arc groove 22 can be in close contact with the side wall of the exhaust channel 12. Then, the exhaust pipe 21 is fixed in the exhaust channel 12 by appropriate fasteners (such as buckles, screws, etc.), ensuring the sealing between the circular arc groove 22 and the side wall. In use, the air in the exhaust interval 23 enters the exhaust pipe 21 from the communication port 110 or the second exhaust port, and is discharged to the outside of the helmet 1 through the first exhaust port 13 at the end of the exhaust pipe 21.

[0071] The sealing of the radial outer periphery of the exhaust pipe 21 is good, which can prevent gas from leaking between the exhaust pipe 21 and the exhaust channel 12, and ensure that all the air behind the horn 3 is discharged to the first exhaust port 13 through the exhaust pipe 21 and then discharged to the outside of the helmet 1. Thus, the sound waves behind the horn 3 can be reduced in the exhaust interval 23 and the helmet 1, and the sound wave cancellation can be reduced.

[0072] Further, referring to Figure 2 , the helmet shell 15 and the buffer layer 16 are provided with a gas guide channel 17, and the gas guide channel 17 is integrally formed on the helmet shell 15. The buffer layer 16 is provided with a mounting port, one end of the gas guide channel 17 is in communication with the mounting port, and the other end of the gas guide channel 17 is in communication with the first exhaust port 13. In addition, the mounting port communicates the exhaust channel 12 and the gas guide channel 17.

[0073] In use, the air in the air exhaust interval 23 first enters the air exhaust channel 12, the air exhaust channel 12 is communicated with the air guide channel 17 through the installation opening, so that the air in the air exhaust channel 12 enters the air guide channel 17 and is discharged through the first air exhaust opening 13.

[0074] The air guide channel 17 also communicates the inside and outside of the helmet 1, where the inside of the helmet 1 is the side of the buffer layer 16 in contact with the human scalp, and the outside of the helmet 1 is the outer surface side of the helmet shell 15. That is, the air guide channel 17 in this embodiment has two functions. First, the air guide channel 17 serves as a bridge connecting the inside and outside of the helmet 1, allowing the warm and humid air inside the helmet 1 to be discharged through the air guide channel 17, which helps to reduce the temperature and humidity inside the helmet 1 and improve the wearing comfort of the user. Second, when air accumulates at the rear side of the loudspeaker 3, the air can enter the air guide channel 17 through the air exhaust channel 12 and be guided to be discharged by the air guide channel 17.

[0075] Further, the loudspeaker assembly is arranged on both left and right sides of the helmet 1, and two first air exhaust openings 13 are arranged at the rear side of the helmet 1 and communicated with two air exhaust pipes 21 respectively.

[0076] It should be noted that the rear side of the helmet 1 refers to the part behind the middle line of the helmet 1 in the front-rear direction, and the first air exhaust opening 13 can be arranged on the back side of the helmet 1, or on the side-rear side of the helmet 1, or on the top of the helmet 1.

[0077] On this basis, the first air exhaust opening 13 is arranged on the rear side of the helmet 1, which ensures that when the air exhaust channel 12 or the air guide channel 17 is connected with the first air exhaust opening 13, the air at the rear side of the loudspeaker 3 can be discharged towards the rear side of the helmet 1, preventing the interference of sound waves of opposite phases between the loudspeaker 3 and the sound waves in the external environment, thereby reducing the sound wave interference between the front and rear sides of the loudspeaker 3.

[0078] The loudspeaker assembly is arranged on both left and right sides of the helmet 1, which can ensure the separation degree of left and right sound channels and provide a clearer and more stereoscopic sound experience. At the same time, the symmetrical arrangement of the loudspeaker assembly can also help to reduce the reflection and interference of sound in the helmet 1, further improving the sound quality.

[0079] In addition, referring to Figure 7 , the first air exhaust opening 13 is preferably arranged on the back side of the helmet 1, so that when the user wears the helmet 1 and rides forward, the air exhaust direction of the first air exhaust opening 13 is opposite to the movement direction of the user, which can increase the relative movement speed of the first side sound wave and the second side sound wave, further preventing the interference of the second side sound wave on the first side sound wave in the external environment.

[0080] Further, refer to Figure 6 The front side of the helmet 1 is further provided with an air inlet channel 18, and the air inlet channel 18 penetrates the inside and outside of the helmet 1.

[0081] Specifically, the helmet 1 is provided with an air inlet 181, one end of the air inlet channel 18 is connected with the air inlet 181, and the other end of the air inlet channel 18 is connected with the inside of the helmet 1. The inside of the helmet 1 here refers to the side of the buffer layer 16 in contact with the human scalp.

[0082] When the user wears the helmet 1 and rides forward, the oncoming wind will enter the air inlet channel 18 through the air inlet 181, and then introduce fresh air into the inside of the helmet 1. This active ventilation method effectively promotes the air flow inside the helmet 1, reducing the stuffy feeling. With the entry of fresh air, the hot air inside the helmet 1 is gradually discharged through the rear first exhaust port 13, thereby achieving a heat dissipation effect and maintaining the dryness and comfort of the head.

[0083] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above-mentioned embodiments, and also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A smart helmet, characterized in that: The helmet comprises a mounting cavity and an exhaust passage, and a first exhaust port is arranged on the helmet and communicates with the exhaust passage. The loudspeaker assembly comprises a loudspeaker arranged in the mounting cavity, and the mounting cavity is provided with a communication port communicating with the exhaust passage. The helmet comprises a helmet shell and a buffer layer arranged on the inner side of the helmet shell, and the mounting cavity is integrally formed on the helmet shell or the buffer layer.

2. The smart helmet of claim 1, wherein: The mounting cavity is further provided with a first sound guide port, and the first sound guide port is longitudinally extended from the mounting cavity to the lower end of the helmet.

3. The smart helmet of claim 2, wherein: The loudspeaker assembly comprises a housing mounted in the mounting cavity, and the housing is provided with a receiving cavity in which the loudspeaker is arranged.

4. The smart helmet of claim 3, wherein: The loudspeaker has a first side and a second side arranged oppositely, and the first side is spaced from one side of the mounting cavity or the receiving cavity to form a sound guide interval, and the sound guide interval communicates with the first sound guide port or the second sound guide port.

5. The smart helmet of claim 4, wherein: The second side is spaced from the other side of the mounting cavity or the receiving cavity to form an exhaust interval, and the exhaust interval communicates with the communication port or the second exhaust port.

6. The smart helmet of claim 5, wherein: The loudspeaker assembly further comprises an exhaust pipe connected to the communication port or the second exhaust port, and the exhaust pipe is mounted in the exhaust passage, and the open end of the exhaust pipe is arranged opposite to the first exhaust port.

7. The smart helmet of claim 6, wherein: The exhaust pipe comprises a circular arc groove having an opening along the radial direction of the exhaust pipe, and the opening is tightly fitted with the side wall of the exhaust passage to seal the radial outer periphery of the exhaust pipe.

8. The smart helmet of claim 6, wherein: A gas guide passage is arranged between the helmet shell and the buffer layer, and the gas guide passage is integrally formed on the helmet shell, and the buffer layer is provided with a mounting port, one end of the gas guide passage communicates with the mounting port, and the other end of the gas guide passage communicates with the first exhaust port.

9. The smart helmet of claim 6, wherein: The mounting port communicates with the exhaust passage and the gas guide passage.

10. The smart helmet of claim 1, wherein: The loudspeaker assembly is arranged on both sides of the helmet, and two first exhaust ports are arranged on the back side of the helmet and communicate with two exhaust pipes respectively. An air inlet passage is further arranged on the front side of the helmet and penetrates the inner and outer sides of the helmet.

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