Pressure relief device and vehicle

Abstract

The application provides a pressure relief device and a vehicle. The pressure relief device is arranged on the vehicle, the vehicle body of the vehicle is provided with a pressure relief port for communicating the inside and outside of the vehicle, and the pressure relief device comprises a pressure relief valve, a valve body, a valve core and a shell cover. The valve body is fixedly arranged on the pressure relief port, the valve body is provided with a pressure relief channel, the valve core is arranged in the pressure relief channel and is used for opening the pressure relief channel when the door is closed, and the shell cover is arranged on the side, away from the inside of the vehicle, of the pressure relief valve and is arranged on the pressure relief port in an openable and closable manner. The pressure relief device of the application is matched with the shell cover, the valve core opens the pressure relief channel when the door is closed, and the shell cover is synchronously turned and opened, so that the air pressure in the vehicle is rapidly released, and the passenger ear pressure is prevented from being suddenly increased due to the sudden increase of the air pressure in the vehicle. In addition, in the closed non-pressure relief state, the dust, rainwater and noise from the outside can be effectively prevented from entering the inside of the vehicle, the long-term stable operation of the pressure relief device is ensured, and the cleanliness and driving comfort in the vehicle are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a pressure relief device and a vehicle. Background Technology

[0002] In modern automotive design, in-vehicle comfort and user experience are key focuses for designers and engineers. To ensure a balance of air pressure inside and outside the vehicle, a pressure relief valve is typically installed to quickly expel air from the cabin when the doors are closed, preventing a sudden increase in cabin pressure. Meanwhile, for aesthetic reasons and to maintain harmony with the overall vehicle design, the pressure relief valve is usually fitted with a decorative cover.

[0003] The decorative cover is usually closed, meaning that when the door closes, the airflow inside the car needs to push the pressure relief valve's vanes open to overcome the obstruction of the cover and expel the air. However, this process is doubly restricted by the decorative cover and the pressure relief valve vanes, which may result in insufficient airflow to fully open the valve. This situation leads to the inability to expel air quickly and effectively, causing a sharp increase in cabin pressure. This sudden increase in pressure negatively impacts passenger comfort, manifesting as a noticeable pressure on the ears. Furthermore, changes in cabin pressure also affect door operation, requiring more force to close the doors and increasing the difficulty of operation. Utility Model Content

[0004] This application provides a pressure relief device and vehicle. By making the cover closable at the pressure relief port, the cover can be opened simultaneously when the door is closed, so as to facilitate and quickly release the pressure inside the vehicle and avoid the increase of ear pressure for passengers when the door is closed, thus improving the user's riding comfort.

[0005] On one hand, this application provides a pressure relief device installed in a vehicle, wherein the vehicle body is provided with a pressure relief port for connecting the inside and outside of the vehicle, comprising: a pressure relief valve, including: a valve body, the valve body being fixedly installed in the pressure relief port, the valve body having a pressure relief channel; a valve core, installed in the pressure relief channel, the valve core being used to open the pressure relief channel when the vehicle door is closed; and a cover, located on the side of the pressure relief valve facing away from the inside of the vehicle, the cover being closable and covering the pressure relief port.

[0006] This utility model's pressure relief device, through the cooperation of a pressure relief valve and a housing, allows the valve core to open the pressure relief channel when the car door is closed, while the housing simultaneously flips open, enabling rapid release of air pressure inside the vehicle and preventing a sudden increase in air pressure that could cause elevated ear pressure for passengers. Furthermore, when closed in non-pressure relief states (such as when the vehicle is stationary or traveling at high speed), it effectively prevents external dust, rainwater, and noise from entering the vehicle through the pressure relief channel, ensuring the long-term stable operation of the pressure relief device and improving the cleanliness of the vehicle interior and driving comfort.

[0007] In some embodiments, a portion of the housing protrudes away from the valve body, forming a pressure relief cavity on the side of the housing facing the pressure relief port, and at least one sidewall of the pressure relief cavity is provided with a through hole communicating with the outside.

[0008] In some embodiments, the housing is provided with a first bracket, and a rotating shaft is provided on the first bracket, the rotating shaft being rotatably connected to the valve body.

[0009] According to some embodiments of the present invention, the pressure relief device further includes: a drive device disposed on the vehicle body, wherein the power output shaft of the drive device is connected to the rotating shaft, and the rotating shaft is fixedly disposed on the first bracket, so that the drive device drives the housing 120 to rotate relative to the pressure relief port.

[0010] According to some embodiments of the present invention, a second bracket is fixedly installed on the vehicle body, and the second bracket covers at least a portion of the body of the drive device so that the drive device is fixedly installed on the vehicle body.

[0011] According to some embodiments of the present invention, the pressure relief device further includes: a control device, which is signal-connected to the drive device; the vehicle is equipped with a door status sensor for collecting the opening and closing status of the door, and the door status sensor is signal-connected to the control device.

[0012] According to some embodiments of the present invention, the vehicle is equipped with a speed sensor for collecting the vehicle's driving speed, and the control device is connected to the speed sensor signal.

[0013] According to some embodiments of the present invention, the valve core includes multiple guide plates. When the pressure inside the vehicle increases, the multiple guide plates flip to open the pressure relief channel. The guide plates are connected to a reset component.

[0014] In some embodiments, a gasket is provided around the periphery of the pressure relief port, and the gasket contacts the housing.

[0015] Secondly, embodiments of this utility model also provide a vehicle including the aforementioned pressure relief device.

[0016] The vehicle of this invention, by using the aforementioned pressure relief device, can quickly release the air pressure inside the vehicle when the door is closed, reducing the resistance to closing the door and improving passenger comfort; at the same time, the protective function of the cover helps to ensure the long-term stable operation of the pressure relief device and extend the service life of the vehicle. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is one of the structural schematic diagrams of the pressure relief device according to an embodiment of the present utility model;

[0019] Figure 2 This is a second schematic diagram of the pressure relief device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the pressure relief valve according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the housing according to an embodiment of the present utility model;

[0022] Figure 5 This is a logic diagram of the pressure relief device according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100 - Pressure relief device;

[0025] 110 - Pressure relief valve; 111 - Valve body; 1111 - Pressure relief passage; 112 - Valve core; 1121 - Guide plate;

[0026] 120 - Casing; 121 - Pressure relief chamber; 122 - Through hole; 123 - First support; 124 - Rotating shaft;

[0027] 130 - Drive unit;

[0028] 140 - Second stent;

[0029] 200 - Body.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] In modern automotive design, in-vehicle comfort and user experience are key focuses for designers and engineers. To ensure a balance of air pressure inside and outside the vehicle, a pressure relief valve is typically installed to quickly expel air from the cabin when the doors are closed, preventing a sudden increase in cabin pressure. Meanwhile, for aesthetic reasons and to maintain harmony with the overall vehicle design, the pressure relief valve is usually fitted with a decorative cover.

[0033] The decorative cover is usually closed, meaning that when the door closes, the airflow inside the car needs to push the pressure relief valve's vanes open to overcome the obstruction of the cover and expel the air. However, this process is doubly restricted by the decorative cover and the pressure relief valve vanes, which may result in insufficient airflow to fully open the valve. This situation leads to the inability to expel air quickly and effectively, causing a sharp increase in cabin pressure. This sudden increase in pressure negatively impacts passenger comfort, manifesting as a noticeable pressure on the ears. Furthermore, changes in cabin pressure also affect door operation, requiring more force to close the doors and increasing the difficulty of operation.

[0034] In view of this, this application provides a pressure relief device and a vehicle, in which a cover is provided at the pressure relief port in an openable and closable manner. When the vehicle door is closed, the cover can be opened simultaneously to facilitate and quickly release the pressure inside the vehicle, thereby preventing the increase of ear pressure for passengers caused by the closing of the vehicle door and improving the user's riding comfort.

[0035] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0036] refer to Figures 1 to 5 In one aspect, this application provides a pressure relief device 100, which can be installed in a vehicle. The vehicle body 200 is provided with a pressure relief port for connecting the interior and exterior of the vehicle. For example, the pressure relief port can be located at the rear of the vehicle body 200, behind the rear seats. Alternatively, the pressure relief port can be located on the rear side panel. Of course, the pressure relief port can also be located at other locations on the vehicle body 200. The specific location of the pressure relief port can be set by the designer according to the requirements, and this application does not limit it.

[0037] The pressure relief device 100 may include a pressure relief valve 110 and a housing 120.

[0038] The pressure relief valve 110 may include a valve body 111 and a valve core 112. The valve body 111 is fixedly disposed at the pressure relief port, and a pressure relief channel 1111 is provided inside the valve body 111. For example, the valve body 111 may be welded to the valve core 112, or the valve body 111 may be connected to the pressure relief port by fasteners such as bolts and screws, or an annular groove may be provided on the outer wall of the valve body 111, and the structure around the pressure relief port of the vehicle body 200 is embedded in the annular groove, so that the valve body 111 is fixedly installed at the pressure relief port.

[0039] Valve core 112 is disposed in pressure relief channel 1111. Valve core 112 is used to open pressure relief channel 1111 when the door is closed. For example, valve core 112 can be a plate structure. When the pressure inside the vehicle increases, the plate structure is driven to flip and open pressure relief channel 1111. Alternatively, valve core 112 can also be an elastic sealing structure. For example, valve core 112 can have a pre-tightening member and a sealing member. The pre-tightening member applies a pre-tightening force toward the sealing member toward the inside of the vehicle. The sealing member blocks pressure relief channel 1111. When the door is closed, the pressure inside the vehicle increases and pushes open the sealing member to allow pressure relief channel 1111 to open and relieve pressure.

[0040] The cover 120 is located on the side of the pressure relief valve 110 away from the vehicle interior. The cover 120 is closable and covers the pressure relief port. For example, the cover 120 can be rotatably mounted on the vehicle body 200 through a structural component such as a pivot 124. When the door is closed, atmospheric pressure pushes the cover 120 to flip open, so that the higher pressure inside the vehicle can be discharged. Alternatively, the cover 120 can be connected to the valve core 112 through a transmission structure. When the valve core 112 opens to relieve pressure, the cover 120 rotates synchronously, so that the higher pressure inside the vehicle can be discharged.

[0041] Of course, the housing 120 can also be driven to open and close the pressure relief port by the drive device 130. For example, the housing 120 can be provided with a rotating shaft 124 that is driven to the output shaft of the drive device 130. The drive device 130 drives the housing 120 to open or close the pressure relief port. The output shaft of the drive device 130 can be driven to the rotating shaft 124 on the housing 120 through a coupling. The drive device 130 drives the housing 120 to rotate to open or close the pressure relief port. Alternatively, the output shaft of the drive device 130 can be driven to the rotating shaft 124 on the housing 120 through a linkage mechanism (such as a four-bar linkage). The drive device 130 drives the housing 120 to translate in space to open or close the pressure relief port.

[0042] Thus, when the car door is closed and the pressure inside the car suddenly increases, the valve core 112 opens the pressure relief channel 1111, and at the same time, the cover 120 flips to open the pressure relief port. This ensures timely and rapid pressure relief with good effect, preventing increased ear pressure for passengers due to increased pressure inside the car, thus improving the riding experience. Simultaneously, the timely release of air pressure inside the car prevents difficulty in closing the door due to increased air pressure, making it convenient for users to close the car door.

[0043] The pressure relief device 100 of this invention, through the cooperation of the pressure relief valve 110 and the housing 120, allows the valve core 112 to open the pressure relief channel 1111 when the car door is closed, while the housing 120 simultaneously flips open, enabling rapid release of air pressure inside the vehicle and preventing a sudden increase in air pressure that could cause increased ear pressure for passengers. Furthermore, when not in a pressure-relief state (such as when the vehicle is stationary or the door is open), it is closed, effectively preventing external dust, rainwater, and noise from entering the vehicle through the pressure relief channel 1111, ensuring the long-term stable operation of the pressure relief device 100, and simultaneously improving the cleanliness of the vehicle interior and driving comfort.

[0044] In addition, the car interior depressurizes quickly and smoothly, preventing the doors from becoming difficult to close due to increased air pressure, allowing users to easily close the doors.

[0045] refer to Figure 1 , Figure 2 and Figure 4 In some embodiments, a portion of the structure of the housing 120 protrudes away from the valve body 111, forming a pressure relief chamber 121 on the side of the housing 120 facing the pressure relief port. In this way, the pressure relief chamber 121 buffers the airflow, preventing air popping during pressure relief and exhaust, thereby reducing the noise during exhaust.

[0046] At least one side wall of the pressure relief chamber 121 is provided with a through hole 122 communicating with the outside. For example, the through hole 122 may be provided on one side wall of the pressure relief chamber 121, or it may be provided on two or three side walls of the pressure relief chamber 121. By providing the through hole 122, on the one hand, when the user closes the door quickly and with great force, and the cover 120 does not open in time, the pressure inside the vehicle can be discharged through the pressure relief valve 110, the pressure relief chamber 121, and the through hole 122, avoiding damage to the cover 120 due to excessive pressure impact, thus improving the structural reliability of the cover 120. On the other hand, by providing the through hole 122 on the cover 120, designers can guide the flow of gas by setting the orientation of the through hole 122, avoiding direct impact of large airflows on the vehicle body 200 structural components, reducing abnormal noise generated during pressure relief, and improving the user's riding experience.

[0047] refer to Figure 1 , Figure 2 and Figure 4 In some embodiments, the housing 120 is provided with a first bracket 123, and a rotating shaft 124 is provided on the first bracket 123, the rotating shaft 124 being rotatably connected to the valve body 111. Exemplarily, the valve body 111 (or the body 200 plate surrounding the valve body 111) may be provided with a protruding mounting seat, and the rotating shaft 124 may be rotatably mounted on the mounting seat so that the rotating shaft 124 is rotatably connected to the valve body 111.

[0048] Through the cooperation of the first bracket 123 and the rotating shaft 124, the housing 120 can rotate relative to the valve body 111 around the rotating shaft 124, thereby realizing the opening and closing action of the housing 120. That is to say, the opening action of the housing 120 in this embodiment can be completed under the action of the pressure inside the vehicle. This rotating connection structure is simple and highly stable, which can ensure that the housing 120 is not prone to jamming during long-term use, and is conducive to improving the reliability of the pressure relief device 100.

[0049] Understandably, in this embodiment, the first bracket 123 and the rotating shaft 124 can be fixedly connected, and the cover 120, the first bracket 123, and the rotating shaft 124 rotate together to achieve the opening action. The first bracket 123 and the rotating shaft 124 can also be rotatably connected. For example, the first bracket 123 can be provided with a mounting hole, and the rotating shaft 124 rotates through the mounting hole. When the cover 120 opens the pressure relief port, the cover 120 and the first bracket 123 open together under the action of the pressure inside the vehicle.

[0050] refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of this utility model, the pressure relief device 100 may further include a drive device 130, disposed on the vehicle body 200. The power output shaft of the drive device 130 is connected to the rotating shaft 124, which is fixedly mounted on the first bracket 123, so that the drive device 130 drives the housing 120 to rotate relative to the pressure relief port. That is, in this embodiment, the drive device 130 provides power for the opening and closing of the housing 120, realizing automated control and making the movement of the housing 120 more reliable. For example, the drive device 130 may include a micro motor, the power output shaft of which is connected to the rotating shaft 124 via gear meshing or a coupling. The drive device 130 facilitates precise control of the rotation angle of the housing 120 (such as fully open, partially open, or fully closed), adapting to different pressure relief requirements.

[0051] According to some embodiments of the present invention, a second bracket 140 is fixedly installed on the vehicle body 200. The second bracket 140 covers at least a portion of the body of the drive device 130. For example, the second bracket 140 may have an annular structure and a support. The body of the drive device 130 may be partially located within the annular structure, and the remaining part of the body of the drive device 130 may abut against the valve body 111 or the outer wall of the vehicle body 200. Alternatively, the entire body of the drive device 130 may be covered by the annular structure. The support is fixedly connected to the vehicle body 200 by welding or bolting, so that the drive device 130 is fixedly installed on the valve body 111.

[0052] Thus, the second bracket 140 provides a stable mounting base for the drive unit 130, preventing the drive unit 130 from loosening in the vibration environment of vehicle operation. The enclosed design not only enhances the structural stability of the drive unit 130, but also provides dustproof and waterproof protection, extending the service life of the drive unit 130.

[0053] Understandably, in other embodiments of this application, the drive device 130 may also have a mounting bracket at one end facing the valve body 111. The mounting bracket is fixedly installed on the valve body 111 by fasteners such as bolts and screws, thereby providing a stable structural foundation for the installation of the drive device 130.

[0054] refer to Figure 5 According to some embodiments of this utility model, the pressure relief device 100 may further include a control device, which is signal-connected to the drive device 130. The control device sends a control signal to the drive device 130 to cause the drive device 130 to drive the cover 120 to open and close. The vehicle is equipped with a door status sensor to collect the door's open / closed state. The door status sensor is signal-connected to the control device. The door status sensor can be an angle sensor, which determines the door's open state by detecting the door's opening angle. For example, when the door's opening angle is 0°, the door is closed; when the door's opening angle is not 0°, the door is open. Alternatively, the door status sensor can also be a tooth engagement sensor, which determines the door's open state by detecting the tooth engagement state.

[0055] The control device can be a vehicle control module, with the control unit as the core control unit. It receives signals from the door status sensor (such as the door's movement signal from opening to closing) and controls the drive unit 130 accordingly: When the door status sensor detects the door is open, the control device sends a command to the drive unit 130 to open the cover 120. The drive unit 130 then rotates the cover 120 to open the pressure relief port, allowing the pressure relief valve 110 to release pressure when the door closes. When the door status sensor detects the door is fully closed, the control device sends a command to the drive unit 130 to close the cover 120. The drive unit 130 then rotates the cover 120 to close the pressure relief port, improving the cleanliness of the vehicle interior. This linkage control mechanism improves the timeliness and accuracy of pressure relief.

[0056] Understandably, in another embodiment of this application, the process of the control device controlling the drive device 130 can also be as follows: when the door status sensor detects that the user begins to turn and close the door, the control device outputs a command to the drive device 130 to open the cover 120, and the drive device 130 drives the cover 120 to rotate and open the pressure relief port, so that the pressure is released synchronously with the pressure relief valve 110 when the door is closed. When the door status sensor detects that the door is completely closed, the control device outputs a command to the drive device 130 to close the cover 120, and the drive device 130 drives the cover 120 to rotate and cover the pressure relief port, isolating the inside and outside of the vehicle.

[0057] Continue to refer to Figure 5 According to some embodiments of this utility model, the vehicle is equipped with a speed sensor for collecting the vehicle's driving speed, and the control device is connected to the speed sensor signal.

[0058] By connecting the control device to the speed sensor signal, the control logic of the drive unit 130 can be further optimized based on the vehicle speed signal. For example, when the vehicle is traveling at high speed (e.g., exceeding a first preset value), the control device can control the cover 120 to close, thereby reducing external noise and optimizing the passenger's auditory experience. When the vehicle is stationary, the drive unit 130 drives the cover 120 to open, ensuring sufficient pressure relief. Alternatively, when the vehicle is traveling at low speed (e.g., below a second preset value), the cover 120 can open under the control of the control device, which facilitates ventilation and provides a comfortable riding environment for passengers. By dynamically adjusting the opening degree of the cover 120, both the pressure relief effect and the aerodynamic performance of the vehicle can be considered.

[0059] Understandably, in this embodiment, both the first preset value and the second preset value can be user-defined values, which can be set by the user on the control device. This enhances the personalization of the vehicle design.

[0060] refer to Figure 3 According to some embodiments of this utility model, the valve core 112 includes multiple guide plates 1121. When the pressure inside the vehicle increases, the multiple guide plates 1121 flip open to open the pressure relief channel 1111. A reset element is connected to each guide plate 1121. Under the action of the pressure inside the vehicle, the guide plates 1121 flip open to form the pressure relief channel 1111, allowing airflow to pass through the gaps between the guide plates 1121. When the air pressure inside the vehicle returns to normal, the reset element (such as a torsion spring or tension spring) drives the guide plates 1121 to reset, closing the pressure relief channel 1111. The design of the multiple guide plates 1121 allows for adjustment of the opening degree according to the air pressure (the greater the air pressure, the greater the flip angle), achieving adaptive pressure relief and avoiding negative pressure problems inside the vehicle caused by excessive pressure relief.

[0061] Understandably, in some embodiments, the drive device 130 can be connected to the guide plate 1121 via gear meshing or other connection methods. That is, in this embodiment, the drive device 130 can not only drive the housing 120 to open or close, but also drive the guide plate 1121 to rotate synchronously to open or close the pressure relief channel 1111. This makes the movement synchronization between the pressure relief valve 110 and the housing 120 of the pressure relief device 100 higher, which is beneficial to improving the pressure relief reliability of the pressure relief device 100.

[0062] Furthermore, a torque sensor can be installed on the transmission component between the drive device 130 and the guide plate 1121. The torque sensor is used to collect the torque output by the drive device 130 when it drives the guide plate 1121 to rotate and open the pressure relief channel 1111. The torque sensor is connected to the control device signal.

[0063] The control device analyzes the feedback values ​​of the torque sensor within a preset number of cycles to determine whether the pressure relief valve 110 is damaged. If the feedback value of the torque sensor decreases significantly within the preset number of cycles, the guide plate 1121 may be broken or the elastic element may have failed. Conversely, if the feedback value of the torque sensor increases significantly within the preset number of cycles, the guide plate 1121 may be stuck or rusted, requiring maintenance. This serves as a fault detection mechanism to determine whether the pressure relief valve 110 is functioning properly.

[0064] In some embodiments, a gasket is provided around the pressure relief port, and the gasket contacts the housing 120. Exemplarily, the gasket can be an elastic element such as a rubber gasket or a silicone gasket. Thus, when the housing 120 is closed, the gasket is pressed by the housing 120, filling the gap between the housing 120 and the periphery of the pressure relief port, enhancing the sealing performance, preventing external dust and rainwater from entering the vehicle interior or the pressure relief channel 1111 through the gap, and reducing the impact noise when the housing 120 is closed.

[0065] Secondly, embodiments of this utility model also provide a vehicle including the aforementioned pressure relief device 100.

[0066] It should be noted that the types of vehicles mentioned in this application are broad, including but not limited to large vehicles, small vehicles, and special-purpose vehicles. For example, categorized by vehicle type, it covers sedans, SUVs, multi-purpose vehicles (MPVs), and other types of vehicles.

[0067] Generally speaking, a vehicle consists of wheels, a power unit, and a transmission mechanism located between the wheels and the power unit. The function of the transmission mechanism is to transmit the power output from the power unit to the wheels, causing the wheels to rotate, thereby enabling the vehicle to move.

[0068] Furthermore, it should be clarified that the embodiments of this application do not limit the type of vehicle power unit. Specifically, the power unit of a fuel vehicle can be a gasoline engine, diesel engine, or other fuel-based engine; the power unit of an electric vehicle is an electric motor; the power unit of a hybrid electric vehicle can be an engine or an electric motor; for vehicles using other power forms, the power unit refers to the relevant equipment that can generate driving force.

[0069] The vehicle of this invention, by using the aforementioned pressure relief device 100, can quickly release the air pressure inside the vehicle when the door is closed, reducing the resistance to closing the door and improving passenger comfort; at the same time, the protective function of the cover 120 helps to ensure the long-term stable operation of the pressure relief device 100 and extend the service life of the vehicle.

[0070] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0071] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A pressure relief device (100) installed in a vehicle, wherein the vehicle body (200) is provided with a pressure relief port for connecting the interior and exterior of the vehicle, characterized in that, include: Pressure relief valve (110) includes: Valve body (111), the valve body (111) is fixedly disposed at the pressure relief port, and a pressure relief channel (1111) is provided inside the valve body (111). A valve core (112) is disposed in the pressure relief channel (1111), and the valve core (112) is used to open the pressure relief channel (1111) when the door is closed. A cover (120) is located on the side of the pressure relief valve (110) away from the vehicle interior, and the cover (120) is closably provided over the pressure relief port.

2. The pressure relief device (100) according to claim 1, characterized in that, A portion of the structure of the housing (120) protrudes away from the valve body (111), forming a pressure relief cavity (121) on the side of the housing (120) facing the pressure relief port. At least one side wall of the pressure relief cavity (121) is provided with a through hole (122) communicating with the outside.

3. The pressure relief device (100) according to claim 1, characterized in that, The housing (120) is provided with a first bracket (123), and a rotating shaft (124) is provided on the first bracket (123). The rotating shaft (124) is rotatably connected to the valve body (111).

4. The pressure relief device (100) according to claim 3, characterized in that, Also includes: A drive unit (130) is provided on the vehicle body (200). The power output shaft of the drive unit (130) is connected to the rotating shaft (124). The rotating shaft (124) is fixedly provided on the first bracket (123) so that the drive unit (130) drives the cover (120) to rotate relative to the pressure relief port.

5. The pressure relief device (100) according to claim 4, characterized in that, A second bracket (140) is fixedly installed on the vehicle body (200). The second bracket (140) covers at least a portion of the body of the drive device (130) so that the drive device (130) is fixedly installed on the vehicle body (200).

6. The pressure relief device (100) according to claim 4, characterized in that, Also includes: The control device is connected to the drive device (130) by signal. The vehicle is equipped with a door status sensor for collecting the opening and closing status of the door. The door status sensor is connected to the control device by signal.

7. The pressure relief device (100) according to claim 6, characterized in that, The vehicle is equipped with a speed sensor to collect the vehicle's speed, and the control device is connected to the speed sensor signal.

8. The pressure relief device (100) according to any one of claims 1-7, characterized in that, The valve core (112) includes multiple guide vanes (1121). When the pressure inside the vehicle increases, the multiple guide vanes (1121) flip open the pressure relief channel (1111). The guide plate (1121) is connected to a reset component.

9. The pressure relief device (100) according to any one of claims 1-7, characterized in that, A gasket is provided around the pressure relief port, and the gasket is in contact with the housing (120).

10. A vehicle, characterized in that, include: The pressure relief device (100) according to any one of claims 1-9.

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