Vehicle pressure relief mechanism and vehicle

Abstract

The present invention discloses a vehicle pressure relief mechanism and an automobile. The pressure relief main body part is formed with an air flow passage having an air inlet and an air outlet arranged in sequence from inside to outside. There is a pressure relief unit on the air flow passage. The pressure relief unit includes a main air flow passage section and a secondary air flow passage section. The secondary air flow passage section is formed with a secondary passage inlet and a secondary passage outlet both communicating with the main air flow passage section. The secondary passage inlet and the secondary passage outlet are both arranged towards the air outlet, so that when exhausting air from the air inlet to the air outlet, the air flow direction in the secondary air flow passage section is the same as the air flow direction in the main air flow passage, thereby realizing quickly exhausting the gas inside the vehicle when closing the door, achieving the stability of the air pressure inside the vehicle and the air pressure outside the vehicle. When introducing air from the air outlet to the air inlet, the air flow direction in the secondary air flow passage section is opposite to the air flow direction in the main air flow passage, increasing the resistance suffered by the air flow in the main air flow passage section, ensuring the one-way flow of the gas inside the vehicle, solving the problem of flapping abnormal noise generated by the vane type pressure relief valve, and improving the use experience.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive pressure relief, and particularly to a vehicle pressure relief mechanism and an automobile. Background Art

[0002] During the process of closing the door, a large amount of gas enters the passenger compartment, resulting in an instantaneous increase in the air pressure inside the vehicle, affecting the ease of closing the door and significantly affecting passenger comfort. The pressure relief valve provides a ventilation opening for relieving pressure inside the passenger compartment. After the air flow inside the vehicle is discharged in time, the pressure inside the vehicle decreases, and the closing force will also become smaller accordingly. Therefore, in order to achieve the air pressure balance inside and outside the automotive passenger compartment, it is essential for an automobile. Currently, the commonly used pressure relief valves in the automotive industry are generally vane type, and the basic structure consists of a valve body, a valve vane, a sealing ring, etc. Under working conditions such as the external circulation of the air conditioner or closing the door, the air pressure inside the vehicle will increase, creating a pressure difference between the inside and outside of the vehicle. This pressure difference will cause the valve vane of the pressure relief valve to open and exhaust towards the outside of the vehicle. After the air pressure inside and outside the vehicle is balanced, the valve vane will fall to the initial state under the action of gravity to achieve sealing. In this way, when closing the door, due to the valve vane of the pressure relief valve falling back after exhausting, it will slap the valve body, generating a physical slapping noise. Or during the driving process of the vehicle, due to the micro-undulations on the road surface, the entire vehicle body will bounce up and down, causing the valve vane of the pressure relief valve to slap the valve body, generating a physical slapping noise, which affects the user experience. Summary of the Invention

[0003] The main object of the present invention is to propose a vehicle pressure relief mechanism and an automobile, aiming to solve the problem that the existing vehicle pressure relief mechanism will generate physical slapping noise during use, which affects the user experience.

[0004] To achieve the above object, the vehicle pressure relief mechanism proposed by the present invention includes:

[0005] It includes a pressure relief main body part for installing on the vehicle body. The pressure relief main body part forms an air flow channel, and the air flow channel has an air inlet and an air outlet arranged in sequence from inside to outside. A pressure relief unit is provided on the air flow channel, and the pressure relief unit includes:

[0006] A main air flow channel section; and,

[0007] A secondary air flow channel section, which forms a secondary channel inlet and a secondary channel outlet both communicating with the main air flow channel section, and both the secondary channel inlet and the secondary channel outlet are arranged towards the air outlet.

[0008] Optionally, a plurality of the pressure relief units are provided, and the main air flow channel sections of the plurality of pressure relief units are connected and arranged.

[0009] Optionally, the main air flow channel sections of two adjacent pressure relief units are arranged at an angle; and / or,

[0010] The secondary air flow channel segments of two adjacent pressure relief units are respectively arranged on both sides of the main air flow channel segment in the width direction.

[0011] Optionally, the pressure relief main body portion includes two pressure relief portions, each of the pressure relief portions has an abutting surface, and pressure relief grooves are arranged on the abutting surfaces. The pressure relief grooves include:

[0012] A main pressure relief groove, which is arranged through the pressure relief portion along the inner and outer direction;

[0013] A sub-pressure relief groove, which is arranged on one side of the main pressure relief groove. The sub-pressure relief groove is bent and includes an inflow pressure relief groove segment and an outflow pressure relief groove segment which are connected. One end of the inflow pressure relief groove segment is communicated with the main pressure relief groove, and the other end is arranged gradually away from the main pressure relief groove along the outer and inner direction. One end of the outflow pressure relief groove segment is communicated with the main pressure relief groove, and the other end is arranged gradually away from the main pressure relief groove along the outer and inner direction;

[0014] Wherein, the abutting surfaces of the two pressure relief portions are hermetically abutted, so that the main pressure relief grooves arranged on the two pressure relief portions together form the main air flow channel segment, and the sub-pressure relief grooves arranged on the two pressure relief portions together form the secondary air flow channel segment.

[0015] Optionally, an arc transition is arranged between the inflow pressure relief groove segment and the outflow pressure relief groove segment; and / or,

[0016] The material of the pressure relief portion includes polypropylene, plastic, aluminum or alloy; and / or,

[0017] The two pressure relief portions are fixedly connected by welding; and / or

[0018] A positioning structure is arranged between the two pressure relief portions. The positioning structure includes a clamping protrusion and a clamping groove adapted to the clamping protrusion. The clamping protrusion and the clamping groove are respectively arranged on the two pressure relief portions.

[0019] Optionally, the pressure relief portion includes:

[0020] A pressure relief main body, which forms the main pressure relief groove. The pressure relief main body is provided with an installation hole penetrating through its thickness direction, and the installation hole is communicated with the main pressure relief groove;

[0021] A partition portion, which includes a mounting plate and a partition column arranged on the mounting plate and extending along the thickness direction of the mounting plate. The partition column corresponds to the installation hole, and the partition column extends into the installation hole. The mounting plate is hermetically abutted against the side portion of the pressure relief portion, so that the sub-pressure relief groove is formed between the side wall surface of the partition column and the inner wall surface of the corresponding installation hole.

[0022] Optionally, the mounting plate and the side portion of the pressure relief main body are detachably connected.

[0023] Optionally, a dust-proof net is further provided at the air outlet and / or the air outlet, and the dust-proof net is detachably connected to the pressure relief main body.

[0024] To achieve the above object, the vehicle proposed by the present invention includes:

[0025] A vehicle body, on which a mounting hole is provided; and,

[0026] A vehicle pressure relief mechanism, configured as the vehicle pressure relief mechanism described above, the vehicle pressure relief mechanism is installed in the mounting hole, the air inlet is used to connect the air pressure inside the vehicle, and the air outlet is used to connect the atmospheric pressure outside the vehicle.

[0027] Optionally, a sealing ring is provided between the inner wall surface of the mounting hole and the periphery of the vehicle pressure relief mechanism.

[0028] In the technical solution provided by the present invention, an air flow channel is formed in the pressure relief main body, the air flow channel has an air inlet and an air outlet arranged in sequence from inside to outside, the air inlet is connected to the air pressure inside the vehicle, and the air outlet is connected to the air pressure outside the vehicle. By providing a pressure relief unit on the air flow channel, the pressure relief unit includes a main air flow channel section and a secondary air flow channel section, and the secondary air flow channel section is formed with a secondary channel inlet and a secondary channel outlet both communicating with the main air flow channel section. Since both the secondary channel inlet and the secondary channel outlet are arranged towards the air outlet, when exhausting air from the air inlet to the air outlet, the air flow in the secondary air flow channel section flows from the secondary channel inlet to the secondary channel outlet, and the air flow direction in the secondary air flow channel section is the same as the air flow direction in the main air flow channel. Thus, when closing the door, the air inside the vehicle can be quickly discharged, and the air pressure inside the vehicle and the air pressure outside the vehicle can be stabilized. When air enters from the air outlet to the air inlet, since the air flow in the secondary air flow channel section flows from the secondary channel outlet to the secondary channel inlet, the air flow direction in the secondary air flow channel section is opposite to the air flow direction in the main air flow channel. Thus, the resistance suffered by the air flow in the main air flow channel section can be increased, which can ensure the unidirectional flow of the air inside the vehicle, not only meeting the basic requirement of exhausting air inside the vehicle to maintain air pressure balance, but also without valve plate flutter, solving the problem of the valve plate of the pressure relief valve in the prior art slapping the valve body and generating physical slapping abnormal noise, and improving the user experience. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0030] Figure 1 Schematic structural diagram of an embodiment of the vehicle pressure relief mechanism provided by the present invention;

[0031] Figure 2 is Figure 1 Top view schematic diagram of the vehicle pressure relief mechanism in

[0032] Figure 3 is Figure 1 Left view schematic diagram of the vehicle pressure relief mechanism in

[0033] Figure 4 is Figure 1 Exploded view of the vehicle pressure relief mechanism in

[0034] Figure 5 is Figure 1 Schematic structural diagram of the vehicle pressure relief mechanism installed on the vehicle body (inside);

[0035] Figure 6 is Figure 1 Schematic structural diagram of the vehicle pressure relief mechanism installed on the vehicle body along the inside - outside direction;

[0036] Figure 7 is Figure 1 Schematic structural diagram of the vehicle pressure relief mechanism installed on the vehicle body (outside).

[0037] Explanation of the reference numerals in the drawings:

[0038] Label Name Label Name 100 Vehicle pressure relief mechanism 12122 Outlet pressure relief groove section 200 Vehicle body 122 Pressure relief main body 1 Pressure relief main body part 1221 Mounting hole 11 Air flow channel 123 Partition part 1a Air inlet 1232 Partition column 1b Air outlet 21 Main air flow channel section 12 Pressure relief part 22 Secondary air flow channel section 121 Pressure relief groove 221 Secondary channel inlet 1211 Main pressure relief groove 222 Secondary channel outlet 1212 Sub-pressure relief groove a Sealing ring 12121 Inlet pressure relief groove section

[0039] The realization of the object of the present invention, functional characteristics and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0041] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] During the process of closing the car door, a large amount of gas enters the passenger compartment, resulting in an instant increase in the vehicle interior pressure, which affects the ease of closing the door and significantly affects passenger comfort. The pressure relief valve provides a ventilation port for relieving pressure in the passenger compartment. After the air flow inside the vehicle is discharged in a timely manner, the pressure inside the vehicle decreases, and the closing force will correspondingly become smaller. Therefore, in order to achieve the air pressure balance inside and outside the vehicle passenger compartment, it is essential for a vehicle. Currently, the commonly used pressure relief valves in the automotive industry are generally vane type pressure relief valves, and their basic structure consists of a valve body, a valve vane, a sealing ring, etc. Under working conditions such as the external circulation of the air conditioner or closing the door, the air pressure inside the vehicle will increase, creating a pressure difference between the inside and outside of the vehicle. This pressure difference will blow open the valve vane of the pressure relief valve and exhaust towards the outside of the vehicle. After the air pressure inside and outside the vehicle is balanced, the valve vane will fall to the initial state under the action of gravity to achieve sealing. In this way, when closing the door, due to the valve vane of the pressure relief valve falling back after exhaust, it will slap against the valve body, generating a physical slapping abnormal noise. Or during the driving process of the vehicle, due to the micro-undulations on the road surface, the entire vehicle body will bounce up and down, causing the valve vane of the pressure relief valve to slap against the valve body, generating a physical slapping abnormal noise, which affects the user experience.

[0044] The present invention provides a vehicle pressure relief mechanism, wherein, Figures 1 to 7 is a schematic structural diagram of an embodiment of the vehicle pressure relief mechanism and vehicle provided by the present invention.

[0045] Please refer to Figures 1 to 3 , the vehicle pressure relief mechanism 100 includes a pressure relief main body portion 1, the pressure relief main body portion 1 is used to be installed on the vehicle body 200, the pressure relief main body portion 1 is formed with an air flow passage 11, the air flow passage 11 has an air inlet 1a and an air outlet 1b arranged in sequence from inside to outside, a pressure relief unit is provided on the air flow passage 11, the pressure relief unit includes a main air flow passage section 21 and a secondary air flow passage section 22, the secondary air flow passage section 22 is formed with a secondary passage inlet 221 and a secondary passage outlet 222 that are both communicated with the main air flow passage section 21, and both the secondary passage inlet 221 and the secondary passage outlet 222 are arranged towards the air outlet 1b.

[0046] In the technical solution provided by the present invention, an air flow channel 11 is formed in the pressure relief main body portion 1. The air flow channel 11 has an air inlet 1a and an air outlet 1b arranged in sequence from inside to outside. The air inlet 1a is communicated with the air pressure inside the vehicle, and the air outlet 1b is communicated with the air pressure outside the vehicle. By providing a pressure relief unit on the air flow channel 11, the pressure relief unit includes a main air flow channel section 21 and a secondary air flow channel section 22. The secondary air flow channel section 22 is formed with a secondary channel inlet 221 and a secondary channel outlet 222 that are both communicated with the main air flow channel section 21. Since the secondary channel inlet 221 and the secondary channel outlet 222 are both arranged towards the air outlet 1b, when exhausting air from the air inlet 1a to the air outlet 1b, the air flow in the secondary air flow channel section 22 flows in the same direction as the air flow in the main air flow channel 11 when flowing out from the secondary channel inlet 221 to the secondary channel outlet 222. Thus, when closing the door, the gas inside the vehicle can be quickly discharged, and the air pressure inside the vehicle and the air pressure outside the vehicle can be stabilized. When

[0047] air enters from the air outlet 1b to the air inlet 1a, since the air flow in the secondary air flow channel section 22 flows in the opposite direction to the air flow in the main air flow channel 11 when entering from the secondary channel outlet 222 to the secondary channel inlet 221, the resistance suffered by the air flow in the main air flow channel section 21 is increased, which not only meets the basic requirement of exhausting air inside the vehicle to maintain air pressure balance, but also there is no valve flap flutter, solving the problem of the valve flap of the pressure relief valve in the prior art slapping the valve body and generating physical slapping abnormal noise, and improving the user experience.

[0048] Specifically, a plurality of the pressure relief units are provided, and the main air flow channel sections 21 of the plurality of pressure relief units are communicated. With this setting, through the combined action of the plurality of pressure relief units, the resistance of the gas flowing from the air outlet 1b to the air inlet 1a is increased, which can ensure that the air inside the vehicle is conducted when exhausting air from the air inlet 1a to the air outlet 1b, and is not conducted from the air outlet 1b to the air inlet 1a, avoiding the gas entering the air inlet 1a from the air outlet 1b and breaking the air pressure balance inside the vehicle, and to a certain extent, it can also prevent rainwater and the like from entering the vehicle, with good effects.

[0049] It should be noted that through the combined action of the plurality of pressure relief units, there is a one-way flow effect on all stable fluids, and it is also applicable to water flow. For example, when the vehicle body falls into water, the vehicle pressure relief mechanism slows down the time for water to enter the vehicle body to a certain extent, and can buy precious rescue time for the people inside the vehicle.

[0050] Specifically, in order to increase the flow rate of the exhaust gas, a plurality of the air flow channels 11 are provided. The plurality of the air flow channels 11 are arranged at intervals in the up-down direction, and the pressure relief units are arranged in each of the plurality of the air flow channels 11. With such an arrangement, the plurality of the air flow channels 11 exhaust gas simultaneously, thereby improving the flow rate and efficiency of the exhaust gas, and the effect is good.

[0051] It should be noted that the aperture of the main air flow channel section 21 and the aperture of the secondary air flow channel section 22 may be the same or different. Specifically, in the embodiment of the present application, the aperture of the main air flow channel section 21 is larger than the aperture of the secondary air flow channel section 22. With such an arrangement, since the length of the main air flow channel section 21 is shorter than the length of the secondary air flow channel section 22, by making the aperture of the main air flow channel section 21 larger than the aperture of the secondary air flow channel section 22, a large amount of gas passes through the main air flow channel section 21. Since the main air flow channel section 21 is shorter, the rapid discharge of the gas is achieved, and the effect is good.

[0052] Furthermore, the main air flow channel sections 21 of two adjacent pressure relief units are arranged at an angle. With such an arrangement, while realizing the exhaust function, rainwater infiltration into the vehicle can be prevented.

[0053] Furthermore, the secondary air flow channel sections 22 of two adjacent pressure relief units are respectively arranged on both sides in the width direction of the main air flow channel section 21. With such an arrangement, the structure is compact, and to a certain extent, the volume of the vehicle pressure relief mechanism 100 is reduced.

[0054] It should be noted that the feature that the main air flow channel sections 21 of two adjacent pressure relief units are arranged at an angle and the feature that the secondary air flow channel sections 22 of two adjacent pressure relief units are respectively arranged on both sides in the width direction of the main air flow channel section 21 may be set alternatively or may be satisfied simultaneously. When both are satisfied simultaneously, the effect is the best.

[0055] Specifically, referring to Figures 4 to 7, in the embodiments of the present application, the pressure relief main body portion 1 includes two pressure relief portions 12, each of the pressure relief portions 12 has an abutting surface, and pressure relief grooves 121 are provided on the abutting surfaces. The pressure relief grooves 121 include a main pressure relief groove 1211 and sub-pressure relief grooves 1212. The main pressure relief groove 1211 is provided through the pressure relief portion 12 along the inner and outer directions, and the sub-pressure relief grooves 1212 are provided on one side of the main pressure relief groove 1211. The sub-pressure relief grooves 1212 are bent and include an inflow pressure relief groove section 12121 and an outflow pressure relief groove section 12122 which are connected. One end of the inflow pressure relief groove section 12121 is connected to the main pressure relief groove 1211, and the other end is arranged gradually away from the main pressure relief groove 1211 along the outer and inner directions. One end of the outflow pressure relief groove section 12122 is connected to the main pressure relief groove 1211, and the other end is arranged gradually away from the main pressure relief groove 1211 along the outer and inner directions. By making the abutting surfaces of the two pressure relief portions 12 seal and abut, the main pressure relief grooves 1211 provided on the two pressure relief portions 12 together form the main air flow channel section 21, and the sub-pressure relief grooves 1212 provided on the two pressure relief portions 12 together form the secondary air flow channel section 22. With such a setting, it is convenient for processing, and when the main air flow channel section 21 and the secondary air flow channel section 22 are blocked, they can be cleaned in time, saving costs.

[0056] Referring to Figures 4 to 7 , an arc transition is provided between the inflow pressure relief groove section 12121 and the outflow pressure relief groove section 12122. With such a setting, it is convenient for processing, and to a certain extent, the resistance during the air flow is reduced, and the effect is good.

[0057] It should be noted that the material of the pressure relief portion 12 includes polypropylene, plastic, aluminum or alloy. To save costs, in the present application, the material of the pressure relief portion 12 includes polypropylene or plastic. Of course, in other embodiments, the material of the pressure relief portion 12 can be selected according to needs, and the present application does not limit this.

[0058] There are various ways to fix between the two pressure relief portions 12. For example, they are connected by screws, adhered by glue, etc. Specifically, in the present application, the two pressure relief portions 12 are fixed by welding. With such a setting, the connection between the two pressure relief portions 12 is firm, and the airtightness is ensured.

[0059] In order to facilitate the alignment between the two pressure relief parts 12, in one embodiment, the two pressure relief parts 12 can be positioned by a positioning device. Specifically, in the present application, a positioning structure is provided between the two pressure relief parts 12. The positioning structure includes a clamping protrusion and a clamping groove adapted to the clamping protrusion. The clamping protrusion and the clamping groove are respectively arranged on the two pressure relief parts 12. With such a setting, through the cooperation and installation of the clamping protrusion and the clamping groove, the two pressure relief parts 12 can be accurately aligned, which is convenient for subsequent welding, with simple operation and good effect.

[0060] Specifically, the pressure relief part 12 includes a pressure relief main body 122 and a partition part 123. The pressure relief main body 122 forms the main pressure relief groove 1211. The pressure relief main body 122 is penetrated with an installation hole 1221 along its thickness direction, and the installation hole 1221 is communicated with the main pressure relief groove 1211. The partition part 123 includes a mounting plate and a partition column 1232 arranged on the mounting plate and extending along the thickness direction of the mounting plate. The partition column 1232 is arranged corresponding to the installation hole 1221. The partition column 1232 extends into the installation hole 1221, and the mounting plate is in sealed contact with the side part of the pressure relief part 12, so that the sub-pressure relief groove 1212 is formed between the side wall surface of the partition column 1232 and the inner wall surface of the corresponding installation hole 1221. With such a setting, the pressure relief main body part 1 can be assembled with the partition part 123 to form the main pressure relief groove 1211 and the sub-pressure relief groove 1212, with simple structure and easy processing.

[0061] It should be noted that referring to Figure 3 , in the embodiment of the present application, the radius of the arc transition section is R1, the distance between the sub-channel inlet of one sub-air flow channel section and the sub-channel outlet of another sub-air flow channel section among two adjacent sub-air flow channel sections is L4, the length of the outflow pressure relief groove section 12122 is L1, the width of the outflow pressure relief groove section 12122 is L2, the width of the partition column 1232 is L5, the distance between the inner wall surface of the outflow pressure relief groove section 12122 and the middle position of the thickness of the partition column 1232 is L3. Among them, 8mm ≤ R1 ≤ 13mm, 50mm ≤ L4 ≤ 80mm, 30mm ≤ L1 ≤ 50mm, 5mm ≤ L2 ≤ 10mm, 10mm ≤ L3 ≤ 15mm, 3mm ≤ L5 ≤ 9mm. Optionally, R1 = 12.4mm, L1 = 41.1mm, L2 = 8.93mm, L3 = 12.4mm, L4 = 68.1mm, L5 = 6.9mm.

[0062] Further, the mounting plate is detachably connected to the side of the pressure relief main body 122. With this arrangement, the partition part 123 can be replaced as needed, thereby changing the groove width of the sub-pressure relief groove 1212 formed between the side wall surface of the partition column 1232 and the inner wall surface of the corresponding mounting hole 1221, achieving the change of air flow velocity and flow rate, improving the versatility, and having a good effect.

[0063] In order to prevent impurities from entering the air flow channel 11, a dust-proof net is further provided at the air outlet 1b and / or the air outlet 1b. The dust-proof net is detachably connected to the pressure relief main body part 1. With this arrangement, the dust-proof net blocks impurities to prevent them from entering the air flow channel 11. At the same time, when there is a large accumulation of impurities on the dust-proof net, the dust-proof net can be removed for cleaning to ensure the gas flow.

[0064] The present invention also provides an automobile, which includes a vehicle body 200 and a vehicle pressure relief mechanism 100. An installation hole 1221 is provided on the vehicle body 200. The vehicle pressure relief mechanism 100 is configured as the vehicle pressure relief mechanism 100 described above. The vehicle pressure relief mechanism 100 is installed in the installation hole 1221. The air inlet 1a is used to connect to the air pressure inside the vehicle, and the air outlet 1b is used to connect to the atmospheric pressure outside the vehicle. Since this automobile adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by all the technical solutions of all the above embodiments, which will not be elaborated here one by one.

[0065] In order to ensure the airtightness of the connection between the installation hole 1221 and the vehicle pressure relief mechanism 100, a sealing ring a is provided between the inner wall surface of the installation hole 1221 and the periphery of the vehicle pressure relief mechanism 100. The sealing ring a seals the gap between the inner wall surface of the installation hole 1221 and the vehicle pressure relief mechanism 100, thereby improving the airtightness at the connection between the installation hole 1221 and the vehicle pressure relief mechanism 100, and having a good effect of preventing rainwater from seeping in or air leakage.

[0066] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A vehicle pressure relief mechanism, characterized in that It includes a pressure relief main body portion which is used to be installed on a vehicle body. The pressure relief main body portion is formed with an air flow channel which has an air inlet and an air outlet arranged in sequence from inside to outside. A pressure relief unit is provided on the air flow channel. The pressure relief unit includes: A main air flow channel section; and, A secondary air flow channel section which is formed with a secondary channel inlet and a secondary channel outlet both communicating with the main air flow channel section, and both the secondary channel inlet and the secondary channel outlet are arranged towards the air outlet; The pressure relief main body portion includes two pressure relief portions, each of the pressure relief portions has a contact surface, and pressure relief grooves are arranged on the contact surfaces. The pressure relief grooves include: A main pressure relief groove which is arranged through the pressure relief portion along the inside-outside direction; A sub-pressure relief groove which is arranged on one side of the main pressure relief groove. The sub-pressure relief groove is bent and includes an inflow pressure relief groove section and an outflow pressure relief groove section which are connected. One end of the inflow pressure relief groove section is connected with the main pressure relief groove, and the other end is arranged gradually away from the main pressure relief groove along the outside-inside direction. One end of the outflow pressure relief groove section is connected with the main pressure relief groove, and the other end is arranged gradually away from the main pressure relief groove along the outside-inside direction; Wherein, the contact surfaces of the two pressure relief portions are in sealing contact so that the main pressure relief grooves arranged on the two pressure relief portions together form the main air flow channel section, and the sub-pressure relief grooves arranged on the two pressure relief portions together form the secondary air flow channel section; The pressure relief portion includes: A pressure relief main body which forms the main pressure relief groove. The pressure relief main body is provided with an installation hole penetrating through it along its thickness direction, and the installation hole is connected with the main pressure relief groove; A partition portion which includes a mounting plate and a partition column arranged on the mounting plate and extending along the thickness direction of the mounting plate. The partition column corresponds to the installation hole, the partition column extends into the installation hole, and the mounting plate is in sealing contact with the side portion of the pressure relief portion so that the sub-pressure relief groove is formed between the side wall surface of the partition column and the inner wall surface of the corresponding installation hole; The mounting plate is detachably connected with the side portion of the pressure relief main body.

2. The vehicle pressure relief mechanism according to claim 1, characterized in that, A plurality of the pressure relief units are provided, and the main air flow channel sections of the plurality of pressure relief units are connected in communication.

3. The vehicle pressure relief mechanism according to claim 2, wherein The main air flow channel sections of two adjacent pressure relief units are arranged at an angle; and / or, The secondary air flow channel sections of two adjacent pressure relief units are arranged on both sides in the width direction of the main air flow channel section.

4. The vehicle pressure relief mechanism according to claim 1, wherein, An arc transition is arranged between the inflow pressure relief groove section and the outflow pressure relief groove section; and / or, The made material of the pressure relief portion includes plastic, aluminum or alloy; and / or, The two pressure relief portions are fixed by welding; and / or A positioning structure is arranged between the two pressure relief portions. The positioning structure includes a clamping convex and a clamping groove adapted to the clamping convex, and the clamping convex and the clamping groove are respectively arranged on the two pressure relief portions.

5. The vehicle pressure relief mechanism according to claim 1, characterized in that, A dust-proof net is further arranged at the air outlet, and the dust-proof net is detachably connected with the pressure relief main body portion.

6. A vehicle, characterized in that, It includes: A vehicle body which is provided with an installation hole; and, A vehicle pressure relief mechanism, configured as the vehicle pressure relief mechanism described in any one of claims 1 to 5, the vehicle pressure relief mechanism being installed in an installation hole on the vehicle body, the air inlet being used to communicate with the vehicle interior air pressure, and the air outlet being used to communicate with the external atmospheric pressure of the vehicle.

7. The motor vehicle according to claim 6, characterized in that, A sealing ring is provided between the inner wall surface of the installation hole on the vehicle body and the periphery of the vehicle pressure relief mechanism.

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