Sound insulating device and vehicle

Abstract

The application relates to the technical field of vehicle sound noise control, and provides a sound insulation device and a vehicle. The sound insulation device is arranged in the vehicle, a pressure relief opening for pressure relief of a passenger cabin is arranged on a side wall of a vehicle body, the sound insulation device is fixedly arranged on one side of the pressure relief opening, and the sound insulation device comprises a blocking mechanism and a driving mechanism for driving the blocking mechanism to move along a preset track. The pressure relief opening is located on the preset track, and under the driving of the driving mechanism, the blocking mechanism can block the pressure relief opening to change the communication area between the pressure relief opening and the outside. The application can meet the pressure relief demand of the passenger cabin, reduce the transmission of external noise to the passenger cabin, and is favorable for improving the NVH performance of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle noise control technology, and in particular to a sound insulation device and a vehicle. Background Technology

[0002] In vehicles, pressure relief vents are typically installed on the side panels to maintain pressure balance within the passenger compartment. When the pressure inside the passenger compartment is high, air can be released through these vents. However, the connection area between the pressure relief vents and the outside environment in current vehicles is fixed and cannot be adjusted according to changes in pressure within the passenger compartment. This can negatively impact the vehicle's NVH (Noise, Vibration, and Harshness) performance. Utility Model Content

[0003] In view of this, this application aims to provide a sound insulation device to improve the NVH performance of a vehicle.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows: A sound insulation device is installed in a vehicle, and the side panel of the vehicle body is provided with a pressure relief port for depressurizing the passenger compartment. The sound insulation device is fixedly installed on one side of the pressure relief port, and the sound insulation device includes a baffle mechanism and a drive mechanism for driving the baffle mechanism to move along a preset trajectory. The pressure relief port is located on the preset trajectory, and under the drive of the driving mechanism, the blocking mechanism can block the pressure relief port to change the communication area between the pressure relief port and the outside world.

[0005] Furthermore, the sound insulation device is fixed to the side panel of the vehicle body through a device housing, and the drive mechanism and the baffle mechanism are disposed in the device housing; Driven by the drive mechanism, the baffle mechanism can slide out or retract relative to the device housing, and the extended baffle mechanism can block the pressure relief port.

[0006] Furthermore, the partition mechanism includes a partition block slidably disposed in the device housing, one end of which is connected to the drive mechanism in a transmission manner; After the drive mechanism drives the baffle block to extend out of the device housing, the baffle block blocks one side of the pressure relief port.

[0007] Furthermore, the partition block has a rigid first portion and an elastically compressible second portion; The first part is connected to the drive mechanism and, driven by the drive mechanism, drives the entire partition block to slide relative to the device housing. The second part abuts against the pressure relief port after the partition block extends out of the device housing, thus blocking the pressure relief port.

[0008] Furthermore, the sound insulation device is located on the outside of the vehicle body side panel, and after the partition block extends out of the device housing, the second part abuts against the vehicle body side panel and the rear bumper located outside the vehicle body side panel.

[0009] Furthermore, the first part has an internal cavity that communicates with the outside and is filled with sound-absorbing material.

[0010] Furthermore, the second part is made of EPDM rubber foam; and / or, The sound-absorbing material includes sound-absorbing cotton.

[0011] Furthermore, the driving mechanism includes a rotary drive unit and a transmission screw that is driven to rotate by the rotary drive unit; The transmission screw is screwed into the transmission nut inside the partition mechanism, and a sliding guide mechanism is provided between the device housing and the partition mechanism.

[0012] Compared with related technologies, this application has the following advantages: (1) The sound insulation device described in this application, under the drive of the drive mechanism, enables the baffle mechanism to block the pressure relief port on the side of the vehicle body, thereby changing the connection area between the pressure relief port and the outside world. Thus, when the air pressure in the passenger compartment is high, the pressure relief port can be used to meet the pressure relief needs of the passenger compartment. At the same time, when the air pressure in the passenger compartment drops, the connection area between the pressure relief port and the outside world can be reduced, thereby reducing the transmission of external noise into the passenger compartment and thus improving the NVH performance of the vehicle.

[0013] (2) The sound insulation device is fixed to the side wall of the vehicle body through the device housing, and the drive mechanism and the partition mechanism are located in the device housing. Under the drive of the drive mechanism, the pressure relief port is blocked by the sliding extension and retraction of the partition mechanism. The structure is simple and easy to design, and it is also convenient to fix the sound insulation device in the vehicle.

[0014] (3) The partition mechanism adopts a sliding partition block, which has a simple structure, is easy to design and manufacture, and helps to reduce the cost of the partition mechanism.

[0015] (4) By making the partition block have a second part that can be elastically compressed, the second part abuts against the pressure relief port after the partition block extends, and forms a blockage of the pressure relief port. This helps to ensure the sealing effect of the partition block on the pressure relief port, and can minimize the gap between the partition block and the pressure relief port, which is beneficial to improving the noise isolation effect.

[0016] (5) Setting the sound insulation device on the outside of the side panel of the vehicle body can facilitate the arrangement of the sound insulation device in the vehicle, and by making the second part of the baffle block able to abut against the rear bumper at the same time, the sealing effect of the baffle block on the pressure relief port can be better guaranteed.

[0017] (6) Fill the first part with sound-absorbing material. The sound-absorbing material can absorb the noise transmitted from the outside to the pressure relief port, which can reduce the external noise transmitted to the passenger compartment through the pressure relief port and help to further improve the NVH performance of the vehicle.

[0018] (7) The second part of the partition block that can be elastically compressed is made of EPDM rubber foam, which can make the second part have excellent elastic deformation performance, and at the same time, it can also make the second part have excellent oxidation resistance and corrosion resistance, which is conducive to ensuring the durability of the partition block.

[0019] The sound-absorbing material uses sound-absorbing cotton, which has a good sound absorption effect, and also has the advantages of low cost and good environmental protection.

[0020] (8) The drive mechanism adopts a transmission screw driven by a rotary drive unit, and through the cooperation of the transmission screw and the transmission nut, the sliding of the partition mechanism is realized. The structure is simple and can realize the smooth sliding of the partition mechanism. At the same time, the sliding guide mechanism can further ensure the smoothness of the sliding of the partition mechanism, which helps to improve the quality of the sound insulation device.

[0021] Another object of this application is to provide a vehicle equipped with the sound insulation device described above.

[0022] Furthermore, the drive mechanism is linked to the airflow level of the air conditioning system in the vehicle, and in response to the airflow level of the air conditioning system, the drive mechanism can adjust the degree of obstruction of the pressure relief port by the baffle mechanism.

[0023] The vehicle described in this application, by setting the sound insulation device as described above, can meet the pressure relief needs of the passenger compartment when the air pressure inside the passenger compartment is high by using the pressure relief port. At the same time, after the air pressure inside the passenger compartment drops, the connection area between the pressure relief port and the outside can be reduced, which can reduce the transmission of external noise into the passenger compartment and thus improve the NVH performance of the vehicle.

[0024] Furthermore, by linking the drive mechanism with the air conditioning settings, the existing system within the vehicle can be used to control the drive mechanism in the sound insulation device, which can reduce the increase in vehicle costs caused by installing the sound insulation device and facilitate the promotion and application of the sound insulation device. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram illustrating the installation of the sound insulation device described in this application embodiment in a vehicle; Figure 2 This is a schematic diagram of the sound insulation device described in the embodiments of this application; Figure 3 This is a schematic diagram of the partition mechanism described in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the arrangement of the sound-absorbing material described in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the linkage between the sound insulation device and the vehicle air conditioning settings described in the embodiments of this application. Explanation of reference numerals in the attached figures: 100. Side panel of vehicle body; 200. Pressure relief vent; 300. Rear bumper; 400. Sound insulation device; 500. Vehicle controller; 600. Air conditioning system; 410. Partition mechanism; 411. Partition block; 4111. First part; 4112. Second part; 4111a. Receiving cavity; 420. Drive mechanism; 421. Rotary drive unit; 422. Transmission screw; 430. Device housing; 431. Guide groove; 440. Sound-absorbing material; 450. Transmission nut; 460. Guide block. Detailed Implementation

[0026] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0032] An embodiment of the first aspect of this application provides a sound insulation device 400, which is installed in a vehicle with a pressure relief port 200 on the side panel 100 of the vehicle body. The pressure relief port 200 is used for pressure relief in the passenger compartment of the vehicle. In this embodiment, by setting the sound insulation device 400, the communication area (i.e., pressure relief area) between the pressure relief port 200 and the outside world can be adjusted, which helps to improve the NVH performance of the vehicle.

[0033] In related technologies, the pressure relief port 200 provided on the side panel 100 of the vehicle body is mainly used to allow air in the passenger compartment to be discharged through the pressure relief port 200 when the air pressure in the passenger compartment is high, so as to maintain the balance of air pressure in the passenger compartment and avoid affecting the comfort of the driver and passengers.

[0034] Currently, the pressure relief area of ​​the 200mm pressure relief vent on vehicles is fixed. However, during vehicle use, the air conditioning system often draws in large volumes of air to quickly regulate the temperature inside the passenger compartment. This can cause the air pressure inside the compartment to rise, affecting the comfort of the passengers. To overcome the discomfort caused by high air pressure inside the compartment, traditional designs often increase the connection area of ​​the pressure relief vent to increase the speed at which air is expelled from the compartment.

[0035] However, with the pressure relief area of ​​the pressure relief port 200 fixed, simply increasing the connection area of ​​the pressure relief port 200 can easily allow tire noise and chassis wind noise to enter the passenger compartment through the pressure relief port during vehicle operation, which will also affect the vehicle's NVH performance and is not conducive to improving the vehicle's NVH performance.

[0036] In view of this, in order to overcome the shortcomings of the relevant technologies, and in combination with Figures 1 to 3 As shown in the figure, in terms of overall design, the sound insulation device 400 of this embodiment is fixedly installed on one side of the pressure relief port 200, and the sound insulation device 400 includes a baffle mechanism 410 and a drive mechanism 420 that drives the baffle mechanism 410 to move along a preset trajectory.

[0037] The pressure relief port 200 is located on the aforementioned preset trajectory, and under the drive of the drive mechanism 420, the baffle mechanism 410 can block the pressure relief port 200 to change the connection area between the pressure relief port 200 and the outside world.

[0038] Therefore, driven by the drive mechanism 420, the partition mechanism 410 can block the pressure relief port 200 on the side panel 100 of the vehicle body, thereby changing the connection area between the pressure relief port 200 and the outside world. In this embodiment, when the air pressure in the passenger compartment is high, the pressure relief port 200 can be used to meet the pressure relief needs of the passenger compartment. At the same time, when the air pressure in the passenger compartment drops, the connection area between the pressure relief port 200 and the outside world can be reduced, which can reduce the transmission of external noise into the passenger compartment and thus improve the NVH performance of the vehicle.

[0039] Based on the above general introduction, it is worth noting that the pressure relief port 200 is generally located at the rear of the side panel 100 of the vehicle body, and an exhaust curtain is also installed in the pressure relief port 200. The exhaust curtain opens when the passenger compartment is depressurized and exhausted, so that the pressure relief port 200 forms an exhaust channel. When depressurization and exhaust are not required, the exhaust curtain remains in the closed state.

[0040] In practical implementation, the structure of the pressure relief port 200 and its setting on the side panel 100 of the vehicle body can be referred to the existing structure in the vehicle, and will not be described in detail here.

[0041] In this embodiment, we continue to combine Figure 2 As shown, in some exemplary embodiments, the sound insulation device 400 can be fixed to the vehicle side panel 100 via the device housing 430, and the aforementioned drive mechanism 420 and the blocking mechanism 410 are disposed in the device housing 430. At the same time, under the drive of the drive mechanism 420, the blocking mechanism 410 can also slide out or retract relative to the device housing 430, and the extended blocking mechanism 410 can block the pressure relief port 200 to change the pressure relief area of ​​the pressure relief port 200.

[0042] At this point, it is understandable that by fixing the sound insulation device 400 to the vehicle side panel 100 through the device housing 430, and by setting the drive mechanism 420 and the blocking mechanism 410 in the device housing 430, and by using the sliding extension and retraction of the blocking mechanism 410 under the drive mechanism 420 to block the pressure relief port 200, it has the advantages of simple structure and easy design. At the same time, it is obviously also convenient for the fixed installation of the sound insulation device 400 in the vehicle.

[0043] In practice, the aforementioned device housing 430 can be made of conventional rigid materials, such as steel or aluminum alloys, or plastics with good structural performance. The fixing of the device housing 430 to the vehicle side panel 100 can also employ conventional connection methods. For example, the device housing 430 can be bonded to the vehicle side panel 100 using structural adhesive, or a connecting lug with a connecting hole (not shown in the figure) can be formed on the device housing 430, and then the device housing 430 can be fixed to the vehicle side panel 100 by bolts passing through the connecting holes.

[0044] In this embodiment, based on the aforementioned device housing 430, further combining... Figure 2 and Figure 3 As shown, in some exemplary embodiments, the aforementioned baffle mechanism 410 may include, for example, a baffle block 411 slidably disposed in the device housing 430. One end of the baffle block 411 is connected to the drive mechanism 420, and after the drive mechanism 420 drives the baffle block 411 to extend out of the device housing 430, the baffle block 411 blocks one side of the pressure relief port 200 to change the pressure relief area of ​​the pressure relief port 200.

[0045] At this point, it is understandable that the partition mechanism 410 adopts a sliding partition block 411, which also has the advantages of simple structure and easy design and manufacturing, thus helping to reduce the cost of the partition mechanism 410.

[0046] Furthermore, in some exemplary embodiments, the partition mechanism 410 of this embodiment uses a partition block 411, and the partition block 411 may have a rigid first part 4111 and an elastically compressible second part 4112.

[0047] The first part 4111 is located at the bottom and is connected to the drive mechanism 420. Under the drive of the drive mechanism 420, the first part 4111 can drive the entire partition block 411 to slide relative to the device housing 430. The second part 4112 is used to abut against the pressure relief port 200 after the partition block 411 extends out of the device housing 430, so as to block the pressure relief port 200.

[0048] It is understandable that by giving the baffle block 411 an elastically compressible second part 4112, after the baffle block 411 extends, the second part 4112 abuts against the pressure relief port 200 to block the pressure relief port 200. The elastic second part 4112 can better fit with the vehicle side panel 100, especially the position of the pressure relief port 200 on the vehicle side panel 100, thereby ensuring the blocking effect of the baffle block 411 on the pressure relief port 200, and minimizing the gap between the baffle block 411 and the vehicle side panel 100, which is beneficial to improving the noise isolation effect.

[0049] Additionally, since the pressure relief port 200 is generally located at the rear of the vehicle side panel 100, in some exemplary embodiments, the sound insulation device 400 may be located on the outside of the vehicle side panel 100. After the partition block 411 extends out of the device housing 430, its second part 4112 may be arranged to abut against the pressure relief port 200 and the rear bumper 300 located outside the vehicle side panel 100.

[0050] By placing the sound insulation device 400 on the outside of the vehicle side panel 100, compared to placing it on the inside of the side panel 100, it is not only easier to arrange the sound insulation device 400 in the vehicle, but also facilitates the blocking and sealing of the pressure relief port 200 by the baffle mechanism 410. Simultaneously, by ensuring that the second part 4112 of the baffle block 411 can simultaneously abut against the rear bumper 300, it is clear that the supporting force exerted by the rear bumper 300 on the second part 4112 of the baffle block 411 can better guarantee the blocking and sealing effect of the baffle block 411 on the pressure relief port 200.

[0051] It is worth noting that, in specific implementations, the sound insulation device 400 located on the outside of the vehicle side panel 100 can, for example, be located below the pressure relief port 200. Furthermore, since the baffle block 411 in the baffle mechanism 410 is slidably disposed within the device housing 430, the entire sound insulation device 400 is also fixed to the vehicle side panel 100 via the device housing 430. Therefore, after the baffle block 411 in the baffle mechanism 410 extends, the baffle block 411, particularly the second portion 4112 of the baffle block 411, can block and seal the pressure relief port 200. As a feasible exemplary implementation, for example, a portion of the vehicle side panel 100 can be recessed in the inward direction, allowing one side of the device housing 430 to be embedded and fixed within this recessed area, thus preventing the second portion 4112 of the baffle block 411 from being difficult to abut against the pressure relief port 200 due to the wall thickness of the device housing 430.

[0052] Based on the recessed area formed on the side panel 100 of the vehicle body, in order to ensure that the second part 4112 of the extended baffle block 411 can also abut against the inner wall of the rear bumper 300, the rear bumper 300 can be further, for example, made into a raised shape at the position facing the pressure relief port 200, and formed into a plane directly facing the pressure relief port 200. Thus, the second part 4112 of the extended baffle block 411 can slide against the aforementioned plane, and under the supporting force provided by the plane pointing towards the pressure relief port 200, it also forms a good abutment against the pressure relief port 200.

[0053] Understandably, since the second part 4112 of the partition block 411 is elastically deformable, the design can and should ensure that there is a certain amount of interference between the extended second part 4112 and the location of the pressure relief port 200 on the side panel 100 of the vehicle body, and the protruding position on the rear bumper 300. This amount of interference is generally between 1mm and 1.5mm, so as to ensure the blocking effect of the second part 4112 while avoiding excessive resistance to the sliding of the partition block 411, thereby ensuring the smoothness of the sliding of the partition block 411.

[0054] It should be noted that, in addition to the above-mentioned implementation, in a specific embodiment, a recessed area is formed on the vehicle side panel 100, and the device housing 430 is fixed within this recessed area. Of course, in other feasible embodiments, for example, the pressure relief port 200, after being installed on the vehicle side panel 100, may have one end facing the rear bumper 300 protruding slightly relative to the outer wall surface of the vehicle side panel 100.

[0055] The aforementioned protrusion can be, for example, between 2mm and 3mm. Since the pressure relief port 200 protrudes outward relative to the vehicle side panel 100, the outward protrusion of the pressure relief port 200 can offset the effect of the wall thickness of the device housing 430. After the partition block 411 extends, its second part 4112 abuts against the pressure relief port 200 to achieve the blocking and sealing of the pressure relief port 200.

[0056] When the pressure relief port 200 protrudes outward relative to the side panel 100, to enhance the blocking effect of the baffle block 411 on the pressure relief port 200, the rear bumper 300 can also be made to protrude from the position facing the pressure relief port 200, thus forming a plane directly opposite the pressure relief port 200. This allows the second part 4112 of the extended baffle block 411 to slide against this plane, and under the supporting force provided by this plane pointing towards the pressure relief port 200, it forms a good contact with the pressure relief port 200.

[0057] In specific implementation, the recessed area formed on the side panel 100 can be integrally stamped and formed during the manufacturing of the side panel 100. The rear bumper 300, with its protrusion opposite the pressure vent 200, can be integrally injection molded during the manufacturing of the rear bumper 300. This design, where one end of the pressure vent 200 protrudes outward relative to the side panel 100, allows for adaptive adjustments to the mounting frame and installation method of the pressure vent 200.

[0058] In this embodiment, we continue to combine Figure 4 As shown, in some exemplary embodiments, a receiving cavity 4111a may be formed inside the first portion 4111 of the partition block 411, which communicates with the outside and may be filled with sound-absorbing material 440.

[0059] At this time, by filling the cavity 4111a inside the first part 4111 with sound-absorbing material 440, the sound-absorbing material 440 can absorb the noise transmitted from the outside to the pressure relief port 200, thereby reducing the external noise transmitted to the passenger compartment through the pressure relief port 200 and helping to further improve the vehicle's NVH performance.

[0060] In specific implementation, the first part 4111 of this embodiment can also be made of metals such as steel or aluminum alloy, or rigid materials such as plastic. In terms of preparation, for example, the first part 4111 can be designed as a box-shaped structure to form a receiving cavity 4111a inside it.

[0061] Furthermore, the receiving cavity 4111a within the first part 4111 is connected to the outside. For example, several through holes can be opened on the side wall of the first part 4111. The diameter of these through holes can be between 1mm and 2mm. In addition to using through holes, it is also possible to provide through slots on the side wall of the first part 4111 to allow the receiving cavity 4111a to be connected to the outside.

[0062] In this embodiment, in some exemplary implementations, the elastically deformable second part 4112 may be made of, for example, EPDM rubber foam.

[0063] In this way, the second part 4112 of the partition block 411, which is elastically compressible, is made of EPDM rubber foam, which enables the second part 4112 to have excellent elastic deformation performance, as well as excellent oxidation resistance and corrosion resistance, which helps to ensure the durability of the partition block 411.

[0064] When the second part 4112 is made of EPDM rubber foam, the connection method between it and the first part 4111 depends on the material of the first part 4111. For example, when the first part 4111 is made of metal, the second part 4112 can be fixed to one end of the first part 4111 by vulcanization. When the first part 4111 is made of plastic, the second part 4112 can be fixed to the first part 4111 by adhesive bonding.

[0065] In this embodiment, in some exemplary implementations, the sound-absorbing material 440 disposed inside the first part 4111 may include, for example, sound-absorbing cotton.

[0066] At this point, using sound-absorbing cotton in the aforementioned sound-absorbing material 440 can achieve good sound absorption, while also offering advantages such as low cost and good environmental friendliness. It is worth noting that in practical implementation, besides including sound-absorbing cotton in the sound-absorbing material 440, it is also possible to include other lightweight, similar products in the same material; this is not a limitation.

[0067] Additionally, it should be noted that the first part 4111 can be fabricated into a box-shaped structure. In specific implementation, for example, an opening communicating with the receiving cavity 4111a can be provided on the first part 4111, and a corresponding blocking plate can be provided to seal the opening. After the sound-absorbing material 440 is filled into the receiving cavity 4111a through the opening, the opening is sealed by the blocking plate, and the blocking plate is fixedly connected to the other parts of the first part 4111 as a whole.

[0068] In this embodiment, we still combine Figures 2 to 4 As shown, in some exemplary embodiments, the drive mechanism 420 may include, for example, a rotary drive unit 421 and a transmission screw 422 driven to rotate by the rotary drive unit 421. The transmission screw 422 is screwed into a transmission nut 450 within the partition mechanism 410, and a sliding guide mechanism is also provided between the device housing 430 and the partition mechanism 410.

[0069] In specific implementation, the aforementioned rotary drive unit 421 can be a motor, and one end of the aforementioned transmission screw 422 can be connected to the motor's rotating shaft. The aforementioned transmission nut 450 is fixed on the first part 4111 of the partition mechanism 410, and a through hole is provided on the first part 4111 corresponding to the threaded hole of the transmission nut 450. The transmission screw 422 passes through the through hole and is screwed into the transmission nut 450.

[0070] Furthermore, as a feasible implementation, the aforementioned sliding guide mechanism may include, for example, a guide groove 431 disposed on the device housing 430 and a guide block 460 disposed on the partition block 411. The guide block 460 can be slidably disposed within the guide groove 431, and preferably, for example, sliding guide mechanisms can be disposed on two opposite sides of the partition block 411 to achieve a better guiding effect.

[0071] It is understandable that by using a transmission screw 422 driven by a rotary drive unit 421 to rotate the drive mechanism 420, and by cooperating with the transmission screw 421 and the transmission nut 422, the sliding of the partition mechanism 410 can be achieved. This not only has the advantages of simple structure and smooth sliding of the partition mechanism 410, but also, through the setting of the sliding guide mechanism, the smoothness of the sliding of the partition mechanism 410 can be further guaranteed, which helps to improve the quality of use of the sound insulation device 400.

[0072] It is worth noting that, regarding the sound insulation device 400 of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 4 As shown, it can be located on the outside of the vehicle side panel 100 and below the pressure relief port 200. Structurally, it also includes a baffle mechanism 410 and a drive mechanism 420 that drives the baffle mechanism 410 to move along a preset trajectory.

[0073] The aforementioned preset trajectory points to the pressure relief port 200, meaning the pressure relief port 200 is located on the preset trajectory. Furthermore, the sound insulation device 400 is fixed to the vehicle side panel 100 via the device housing 430, and the drive mechanism 420 and the baffle mechanism 410 are disposed within the device housing 430.

[0074] The baffle block 411 has a rigid first part 4111 and an elastically compressible second part 4112. The first part 4111 is connected to the drive mechanism 420, and the cavity 4111a inside the first part 4111 is filled with sound-absorbing material 440, which includes sound-absorbing cotton. Meanwhile, the second part 4112 is made of EPDM rubber foam.

[0075] Furthermore, the drive mechanism 420 includes a rotary drive unit 421 and a transmission screw 422 driven to rotate by the rotary drive unit 421. A sliding guide mechanism is also provided between the device housing 430 and the partition mechanism 410. Simultaneously, driven by the drive mechanism 420, the partition block 411 in the partition mechanism 410 can block the pressure relief port 200, thereby changing the communication area between the pressure relief port 200 and the outside world.

[0076] In the preferred embodiment of the sound insulation device 400 above, the specific configuration and arrangement of the barrier mechanism 410, the drive mechanism 420 and the device housing 430, etc., can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the barrier mechanism 410, the drive mechanism 420 and the device housing 430, etc., can also be referred to the descriptions in the above exemplary embodiments.

[0077] The sound insulation device 400 in this embodiment adopts the above design. It can not only meet the pressure relief needs of the passenger compartment when the air pressure inside the passenger compartment is high, but also reduce the connection area between the pressure relief port 200 and the outside world after the air pressure inside the passenger compartment drops. This can reduce the transmission of external noise into the passenger compartment, which is beneficial to improving the NVH performance of the vehicle.

[0078] An embodiment of the second aspect of this application provides a vehicle in which the sound insulation device 400 described in the first aspect embodiment is provided.

[0079] In this embodiment, the pressure relief port 200 provided on the side panel 100 of the vehicle body, the structure of the sound insulation device 400, and the installation of the sound insulation device 400 in the vehicle can all be found in the relevant description in the first aspect embodiment.

[0080] Furthermore, in some exemplary embodiments of this embodiment, the drive mechanism 420 in the sound insulation device 400 may be linked to the airflow level of the air conditioning system 600 in the vehicle, and in response to the airflow level of the air conditioning system 600, the drive mechanism 420 may adjust the degree of obstruction of the pressure relief port 200 by the barrier mechanism 41.

[0081] Specifically, continue to combine Figure 5 As shown, the linkage between the drive mechanism 420 and the air conditioning system 600 is generally configured such that the drive mechanism 420 is connected to the vehicle controller 500 in the vehicle. Thus, the air conditioning system 600 is also connected to the vehicle controller 500, so that under the control of the vehicle controller 500, the drive mechanism 420 in the sound insulation device 400 can be linked with the air volume setting of the air conditioning system 600.

[0082] As an example, the linkage between the aforementioned drive mechanism 420 and the airflow setting of the air conditioning system 600 can be such that, when the air conditioning system 600 is in external circulation mode, as the airflow setting increases, the degree of obstruction of the pressure relief port 200 by the baffle mechanism 410 in the sound insulation device 400 decreases. Conversely, as the airflow setting decreases, the degree of obstruction of the pressure relief port 200 by the baffle mechanism 410 can increase.

[0083] Under the drive of the drive mechanism 420, the extension amount of the partition block 411 in the partition mechanism 410 can generally vary between 0-100%. When the extension amount of the partition block 411 is 0%, it means that it is not extended and does not block the pressure relief port 200. When the extension amount of the partition block 411 is 100%, it means that it is fully extended and completely blocks the pressure relief port 200.

[0084] In practical implementation, it is worth noting that the specific relationship between the extension amount of the partition block 411 and the airflow level of the air conditioning system 600 can be calibrated based on a specific vehicle model. During calibration, the external circulation of the air conditioning system 600 is turned on, and the air conditioning system 600 is set to different airflow levels. Then, the extension amount of the partition block 411 is changed through the drive mechanism 420 until the air pressure in the passenger compartment meets the set requirements. After the extension amount of the partition block 411 corresponding to each airflow level is calibrated, the calibration information is preset in the vehicle controller 500, and the vehicle controller 500 can control the system according to the preset information.

[0085] Understandably, by linking the drive mechanism 420 in the sound insulation device 400 with the airflow setting of the air conditioning system 600, the existing system within the vehicle can be used to control the drive mechanism in the sound insulation device 400. This reduces the increase in vehicle costs caused by installing the sound insulation device 400 and facilitates the widespread application of sound insulation devices. In this embodiment, the vehicle is equipped with the aforementioned sound insulation device 400. When the air pressure in the passenger compartment is high, the pressure relief port 200 can be used to relieve the pressure in the passenger compartment. At the same time, when the air pressure in the passenger compartment drops, the connection area between the pressure relief port 200 and the outside can be reduced, which can reduce the transmission of external noise into the passenger compartment and thus improve the vehicle's NVH performance.

[0086] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the protection scope of the claims of this application.

Claims

1. A sound insulation device, installed in a vehicle, wherein a pressure relief port (200) for depressurizing the passenger compartment is provided on the side panel (100) of the vehicle body, characterized in that: The sound insulation device (400) is fixedly installed on one side of the pressure relief port (200), and the sound insulation device (400) includes a baffle mechanism (410) and a drive mechanism (420) that drives the baffle mechanism (410) to move along a preset trajectory. The pressure relief port (200) is located on the preset trajectory, and under the drive of the drive mechanism (420), the barrier mechanism (410) can block the pressure relief port (200) to change the communication area between the pressure relief port (200) and the outside world.

2. The sound insulation device according to claim 1, characterized in that: The sound insulation device (400) is fixed to the vehicle side panel (100) by the device housing (430), and the drive mechanism (420) and the partition mechanism (410) are disposed in the device housing (430); Driven by the drive mechanism (420), the partition mechanism (410) can slide out or retract relative to the device housing (430), and the extended partition mechanism (410) can block the pressure relief port (200).

3. The sound insulation device according to claim 2, characterized in that: The partition mechanism (410) includes a partition block (411) slidably disposed in the device housing (430), one end of the partition block (411) being connected to the drive mechanism (420) in a transmission manner; After the drive mechanism (420) drives the baffle (411) to extend out of the device housing (430), the baffle (411) blocks one side of the pressure relief port (200).

4. The sound insulation device according to claim 3, characterized in that: The baffle (411) has a rigid first part (4111) and an elastically compressible second part (4112). The first part (4111) is connected to the drive mechanism (420) and, driven by the drive mechanism (420), drives the entire partition block (411) to slide relative to the device housing (430); The second part (4112) abuts against the pressure relief port (200) after the partition block (411) extends out of the device housing (430), and forms a shield for the pressure relief port (200).

5. The sound insulation device according to claim 4, characterized in that: The sound insulation device (400) is located outside the vehicle body side panel (100), and after the partition block (411) extends out of the device housing (430), the second part (4112) abuts against the vehicle body side panel (100) and the rear bumper (300) located outside the vehicle body side panel (100).

6. The sound insulation device according to claim 4, characterized in that: The first part (4111) has a cavity (4111a) inside, the cavity (4111a) is connected to the outside, and the cavity (4111a) is filled with sound-absorbing material (440).

7. The sound insulation device according to claim 6, characterized in that: The second part (4112) is made of EPDM rubber foam; and / or, The sound-absorbing material (440) includes sound-absorbing cotton.

8. The sound insulation device according to any one of claims 2 to 7, characterized in that: The drive mechanism (420) includes a rotary drive unit (421) and a transmission screw (422) driven to rotate by the rotary drive unit (421). The transmission screw (422) is screwed into the transmission nut (450) inside the partition mechanism (410), and a sliding guide mechanism is provided between the device housing (430) and the partition mechanism (410).

9. A vehicle, characterized in that: The vehicle is equipped with a sound insulation device (400) as described in any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that: The drive mechanism (420) is linked to the air volume setting of the air conditioning system (600) in the vehicle, and in response to the air volume setting of the air conditioning system (600), the drive mechanism (420) can adjust the degree of obstruction of the pressure relief port (200) by the partition mechanism (410).

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