Pressure release valve of vehicle and vehicle with pressure release valve
By setting up a multi-cavity structure and silencer in the muffler, the pressure relief area is increased and the noise is reduced, which solves the problem of insufficient pressure relief capacity of the existing pressure relief valve and improves the vehicle's NVH performance and user experience.
Patent Information
- Application Number
- CN202422895997.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In the existing technology, the pressure relief valve with a muffler has insufficient pressure relief capacity, causing excess pressure inside the vehicle to be discharged from locations such as the windshield water cut and the fuel filler cap, generating obvious whistling and disturbing noise, affecting NVH performance and user experience.
A pressure relief valve is designed. By setting a first cavity and a second cavity in the muffler that are connected to the air outlet channel and the interior of the vehicle, the pressure relief area is increased. A silencer is also set in the muffler to reduce noise. The structure design includes a silencer shell and a silencer hole to enhance the pressure relief capacity and noise reduction effect.
The pressure relief valve's pressure relief capacity is enhanced, reducing the noise and disturbance caused by excess pressure flowing out of the vehicle's windshield or fuel filler cap, improving the vehicle's NVH performance and enhancing the user's driving experience.
Smart Images
Figure CN223443265U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field especially is related to a kind of pressure relief valve of vehicle and vehicle with it. BACKGROUND
[0002] In the related art, the pressure relief valve with muffler has insufficient pressure relief capacity, and the excess pressure in the vehicle is discharged from the water cut, oil filler cap and other positions, resulting in obvious whistling sound at the water cut, oil filler cap and other positions, and disturbance noise at the pressure relief valve, thereby causing poor NVH performance of the vehicle, affecting the user's driving experience. SUMMARY
[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide a pressure relief valve of vehicle, which has large pressure relief area and strong pressure relief capacity, and can reduce noise and disturbance sound.
[0004] The utility model further provides a vehicle with the pressure relief valve.
[0005] According to the pressure relief valve of the vehicle of the utility model embodiment, the valve body has an air outlet channel for guiding the gas inside the vehicle to the outside of the vehicle, the valve disc is rotatably arranged on the valve body and selectively opens or blocks the air outlet channel, and the muffler is arranged on the valve body and located on the upstream side of the air outlet channel. The muffler defines a first cavity and a second cavity, the first cavity is in communication with the air outlet channel, the inside of the vehicle and the second cavity, and the second cavity is in communication with the inside of the vehicle and the air outlet channel.
[0006] According to the pressure relief valve of the vehicle of the utility model embodiment, by arranging the first cavity and the second cavity in communication with the air outlet channel and the inside of the vehicle in the muffler, the pressure relief area of the pressure relief valve can be increased to enhance the pressure relief capacity of the pressure relief valve, reduce the risk of noise caused by the excess pressure flowing out from the water cut or oil filler cap of the vehicle, and also reduce the disturbance sound at the pressure relief valve, which is beneficial to improving the NVH (Noise, Vibration, Harshness) performance of the vehicle and enhancing the user's driving experience.
[0007] In some embodiments of the utility model, the muffler includes a first muffler shell and a second muffler shell, the first muffler shell is connected with the second muffler shell, the first muffler shell defines the first cavity, the second muffler shell defines the second cavity, and the second muffler shell has a first communication hole communicating the second cavity with the inside of the vehicle.
[0008] In some embodiments of the utility model, the first communication hole is multiple.
[0009] In some embodiments of the utility model, the pressure relief valve further comprises: a sound attenuation piece, the sound attenuation piece is arranged in the second cavity.
[0010] In some embodiments of the utility model, the sound attenuation piece has a pressure relief hole, and the pressure relief hole corresponds to the first communication hole.
[0011] In some embodiments of the utility model, the second sound attenuation shell comprises a top wall and a side wall, the side wall is connected with the top wall, the first sound attenuation shell is connected with the side wall, the top wall has the first communication hole, and the side wall has a second communication hole communicating the second cavity and the first cavity.
[0012] In some embodiments of the utility model, the valve piece and the air outlet channel are multiple, the multiple valve pieces and the multiple air outlet channels correspond one by one, at least one valve piece corresponds to the first cavity, and at least one valve piece corresponds to the second cavity.
[0013] In some embodiments of the utility model, the sound attenuation piece is detachably connected with the valve body.
[0014] In some embodiments of the utility model, the sound attenuation piece has a first clamping part, the valve body has a second clamping part, and the first clamping part is clamped and matched with the second clamping part.
[0015] The vehicle according to the embodiments of the utility model comprises the pressure relief valve of the vehicle.
[0016] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:
[0018] Figure 1 It is a schematic view of the pressure relief valve according to the embodiments of the utility model;
[0019] Figure 2 It is a schematic view of the sound attenuation piece according to the embodiments of the utility model.
[0020] Reference signs:
[0021] Valve body 1; second clamping part 11;
[0022] Valve piece 2;
[0023] Silencer 3; first cavity 31; second cavity 32; first silencer shell 33; second silencer shell 34; top wall 341; side wall 342; first communication hole 35; first clamping portion 36; third clamping portion 37; fourth clamping portion 38; second communication hole 39;
[0024] Pressure relief valve 100. DETAILED DESCRIPTION
[0025] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary only, and are not intended to limit the present application.
[0026] The pressure relief valve 100 of a vehicle according to an embodiment of the present application and the vehicle having the same are described below with reference to the accompanying drawings.
[0027] As shown in Figure 1 and Figure 2 The pressure relief valve 100 of a vehicle according to an embodiment of the present application includes a valve body 1, a valve disc 2, and a silencer 3. The valve body 1 has an air outlet passage for guiding gas inside the vehicle to the outside of the vehicle. The valve disc 2 is rotatably provided in the valve body 1 and selectively opens or blocks the air outlet passage. The silencer 3 is provided in the valve body 1 and located on the upstream side of the air outlet passage. The silencer 3 defines a first cavity 31 and a second cavity 32. The first cavity 31 is in communication with the air outlet passage, the inside of the vehicle, and the second cavity 32. The second cavity 32 is in communication with the inside of the vehicle and the air outlet passage.
[0028] The pressure relief valve 100 can be provided on the rear side wall of the vehicle. The pressure relief valve 100 of the vehicle is used to balance the air pressure inside and outside the vehicle. The valve body 1 of the pressure relief valve 100 has an air outlet passage. When the air pressure inside the vehicle is greater than the air pressure outside the vehicle, the gas inside the vehicle can flow to the outside of the vehicle through the air outlet passage. The valve disc 2 of the pressure relief valve 100 is rotatably provided in the valve body 1. The valve disc 2 selectively opens or blocks the air outlet passage. When the air pressure inside the vehicle is less than or equal to the air pressure outside the vehicle, the valve disc 2 blocks the air outlet passage. When the air pressure inside the vehicle is greater than the air pressure outside the vehicle and the difference between the air pressure inside the vehicle and the air pressure outside the vehicle reaches a predetermined value, the valve disc 2 opens the air outlet passage. The gas inside the vehicle can flow to the outside of the vehicle through the air outlet passage, so as to reduce the air pressure inside the vehicle, i.e. to achieve the pressure relief effect.
[0029] The muffler 3 of the pressure relief valve 100 is arranged on the valve body 1, and the muffler 3 can be arranged with sound-absorbing material. The muffler 3 is located on the upstream side of the air outlet channel. When the gas in the vehicle interior flows through the sound-absorbing material, the gas rubs against the sound-absorbing material, and the sound energy of the gas can be converted into heat energy to reduce the noise of the gas flow. When the pressure in the vehicle interior is greater than the pressure outside the vehicle and the difference between the pressure in the vehicle interior and the pressure outside the vehicle reaches a preset value, at least part of the gas in the vehicle interior can flow to the outside of the vehicle in sequence through the muffler 3 and the air outlet channel. The muffler 3 can reduce the noise of the gas flowing therethrough, reduce the noise of the gas, and improve the NVH (Noise, Vibration, Harshness) performance of the vehicle.
[0030] The muffler 3 defines a first cavity 31 and a second cavity 32. The first cavity 31 is in communication with the air outlet channel, the vehicle interior and the second cavity 32. The second cavity 32 is in communication with the vehicle interior and the air outlet channel. The gas in the vehicle interior can flow to the outside of the vehicle in sequence through the first cavity 31 and the air outlet channel, or the gas in the vehicle interior can flow to the outside of the vehicle in sequence through the first cavity 31, the second cavity 32 and the air outlet channel, or the gas in the vehicle interior can directly flow into the second cavity 32 and flow to the outside of the vehicle through the air outlet channel. In this way, the gas in the vehicle interior can have multiple paths to flow to the outside of the vehicle, and the gas in the vehicle interior can directly flow into the second cavity 32, which can increase the pressure relief area and enhance the pressure relief capacity without increasing the area of the pressure relief valve 100.
[0031] It can be understood that when the air conditioner of the vehicle is in the external circulation mode, especially when the air conditioner gear is adjusted to a higher gear, whistle noise, disturbance noise and other noises are likely to occur. The pressure relief valve 100 proposed in the application can enhance the pressure relief capacity of the pressure relief valve 100 by allowing the gas in the vehicle interior to directly flow into the second cavity 32 and flow to the outside of the vehicle through the second cavity 32, thereby reducing the risk of whistle noise and disturbance noise at the pressure relief valve 100 caused by excess pressure flowing out from the windshield wiper or the oil filler cap of the vehicle.
[0032] In the above embodiment, by arranging the first cavity 31 and the second cavity 32 in communication with the air outlet channel and the vehicle interior in the muffler 3, the pressure relief area of the pressure relief valve 100 can be increased to enhance the pressure relief capacity of the pressure relief valve 100, thereby reducing the risk of noise caused by excess pressure flowing out from the windshield wiper or the oil filler cap of the vehicle, and also reducing the disturbance noise at the pressure relief valve 100, which is beneficial to improving the NVH (Noise, Vibration, Harshness) performance of the vehicle and improving the user's driving experience.
[0033] In some embodiments of the present application, asFigure 1 and Figure 2 As shown in
[0034] The first muffler shell 33 and the second muffler shell 34 of the muffler 3 can be connected, the first muffler shell 33 can define the first cavity 31, the second muffler shell 34 can define the second cavity 32, and the first muffler shell 33 and the second muffler shell 34 can both have a guiding effect on the gas in the vehicle interior, so that the gas in the vehicle interior can enter the first cavity 31 and the second cavity 32 and flow to the valve piece 2, and when the vehicle interior gas pressure is greater than the vehicle exterior gas pressure and the difference between the vehicle interior gas pressure and the vehicle exterior gas pressure reaches a preset value, the gas in the vehicle interior can flow to the vehicle exterior more smoothly through the muffler 3, to achieve the effect of pressure relief.
[0035] The second muffler shell 34 has the first communication hole 35, which can communicate the second cavity 32 with the vehicle interior, and the gas in the vehicle interior can flow from the vehicle interior to the vehicle exterior through the second cavity 32 through the first communication hole 35. By providing the first communication hole 35 on the second muffler shell 34, the second cavity 32 can be communicated with the vehicle interior, the gas in the vehicle interior can directly flow into the second cavity 32, thereby increasing the pressure relief area and enhancing the pressure relief capacity, and by providing the first communication hole 35 on the second muffler shell 34, the manufacturing cost is low, the cycle is short, and the engineering feasibility is high.
[0036] As some embodiments of the present application, the first muffler shell 33 and the second muffler shell 34 can be provided as separate parts, and the first muffler shell 33 and the second muffler shell 34 can be connected by clamping, bonding or bolting, etc. As some embodiments of the present application, the first muffler shell 33 and the second muffler shell 34 can be integrally formed.
[0037] In some embodiments of the present application, as shown in Figure 1 The first communication hole 35 is a plurality of holes.
[0038] The first communication hole 35 can have a plurality of holes, and the number of the first communication hole 35 can be two, four, six, etc. The plurality of first communication holes 35 can all communicate the second cavity 32 with the vehicle interior, and the gas in the vehicle interior can flow from the vehicle interior to the vehicle exterior through the second cavity 32 through the plurality of first communication holes 35. By providing a plurality of first communication holes 35, the flow of the gas in the vehicle interior directly flowing into the second cavity 32 can be increased, and thus the pressure relief area can be significantly increased, and the pressure relief capacity can be significantly enhanced.
[0039] As some embodiments of the present application, the plurality of first communication holes 35 can each be configured as a circular hole, and the diameter D of the first communication hole 35 can satisfy the relationship: 13mm≤D≤15mm, and the diameter of the first communication hole 35 can be 13mm, 14mm, 15mm, etc. Such a setting can make the diameter of the first communication hole 35 reasonable, can increase the flow of gas in the vehicle interior into the second cavity 32, and will not excessively affect the structural strength of the second muffler shell 34.
[0040] In some embodiments of the present application, the pressure relief valve 100 further comprises: a muffling member, which is arranged in the second cavity 32.
[0041] The muffling member of the pressure relief valve 100 can be arranged in the second cavity 32, and the muffling member can be polyurethane foam plastic, rock wool, sponge, etc. When the gas in the vehicle interior flows through the second cavity 32, the gas will rub against the muffling member in the second cavity 32, and the sound energy of the gas will be converted into heat energy, thereby reducing noise and improving the NVH (Noise, Vibration, Harshness) performance of the vehicle.
[0042] In some embodiments of the present application, the muffling member has a pressure relief hole corresponding to the first communication hole 35.
[0043] The muffling member can have a pressure relief hole, which can be arranged corresponding to the first communication hole 35, and the number of pressure relief holes can be equal to and one-to-one corresponding to the number of first communication holes 35. By arranging the pressure relief hole and corresponding to the first communication hole 35, the gas directly flowing from the vehicle interior into the second cavity 32 can flow more smoothly through the muffling member and out of the vehicle interior, in other words, the flow resistance of the gas directly flowing from the vehicle interior into the second cavity 32 in the second cavity 32 is small, so as to effectively enhance the pressure relief capacity of the pressure relief valve 100.
[0044] As some embodiments of the present application, the first muffler shell 33 can be made of plastic, and the muffling member and the first muffler shell 33 can be punched synchronously to make the pressure relief hole and the first communication hole 35 directly arranged, which is simpler to manufacture, shorter in cycle, and higher in engineering feasibility.
[0045] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The second muffler shell 34 includes a top wall 341 and a side wall 342, the side wall 342 is connected with the top wall 341, the first muffler shell 33 is connected with the side wall 342, the top wall 341 has the first communication hole 35, and the side wall 342 has a second communication hole 39 communicating the second cavity 32 and the first cavity 31.
[0046] The top wall 341 of the second muffling shell 34 is connected with the side wall 342, the side wall 342 can be connected with the first muffling shell 33, the side wall 342 can be provided with the second communication hole 39, the first cavity 31 and the second cavity 32 can be communicated through the second communication hole 39, the gas in the vehicle interior can flow to the vehicle exterior through the first cavity 31, the second communication hole 39, the second cavity 32 and the air outlet channel in sequence, the gas in the vehicle interior can flow to the vehicle exterior through the first cavity 31 and the air outlet channel in sequence, and the top wall 341 can be provided with the first communication hole 35, the gas in the vehicle interior can flow to the vehicle exterior through the first communication hole 35, the second cavity 32 and the air outlet channel in sequence. In this way, more gas can flow through the second cavity 32 to reduce noise through the muffling member, improve the NVH (Noise, Vibration, Harshness) performance of the vehicle, improve the user experience, and part of the gas can not pass through the second cavity 32 (that is, directly flow to the vehicle exterior through the air outlet channel from the first cavity 31), thereby enhancing the pressure relief capacity of the pressure relief valve 100.
[0047] In some embodiments of the present application, the valve piece 2 and the air outlet channel are both multiple, the multiple valve pieces 2 and the multiple air outlet channels are one-to-one corresponding, at least one valve piece 2 corresponds to the first cavity 31, and at least one valve piece 2 corresponds to the second cavity 32.
[0048] In some embodiments of the present application, the valve piece 2 and the air outlet channel are both multiple, the multiple valve pieces 2 and the multiple air outlet channels are one-to-one corresponding, at least one valve piece 2 corresponds to the first cavity 31, and at least one valve piece 2 corresponds to the second cavity 32.
[0049] In some embodiments of the present application, the muffler 3 is detachably connected with the valve body 1.
[0050] In some embodiments of the present application, the muffler 3 is detachably connected with the valve body 1.
[0051] In some embodiments of the utility model, as shown in Figure 1 The muffler 3 has a first clamping portion 36, and the valve body 1 has a second clamping portion 11. The first clamping portion 36 is clamped and matched with the second clamping portion 11.
[0052] The muffler 3 can have a first clamping portion 36, and the valve body 1 can have a second clamping portion 11. One of the first clamping portion 36 and the second clamping portion 11 can be configured as a clamping hook, and the other of the first clamping portion 36 and the second clamping portion 11 can be configured as a clamping groove. The clamping hook can be clamped and matched with the clamping groove, that is, the first clamping portion 36 can be clamped and matched with the second clamping portion 11, so that the muffler 3 is fixedly connected to the valve body 1. By clamping and matching the first clamping portion 36 with the second clamping portion 11, the muffler 3 is conveniently fixedly connected to the valve body 1, convenient for disassembly and assembly, simple structure, low cost, and easy to implement.
[0053] As some embodiments of the application, as shown in Figure 1 and Figure 2 The muffler 3 can also have a third clamping portion 37 and a fourth clamping portion 38, and the valve body 1 can have a fifth clamping portion and a sixth clamping portion. The third clamping portion 37 and the fifth clamping portion can be configured as clamping holes, and the fourth clamping portion 38 and the sixth clamping portion can be configured as clamping protrusions. The third clamping portion 37 can be clamped and matched with the sixth clamping portion, and the fourth clamping portion 38 can be clamped and matched with the fifth clamping portion. By clamping and matching the muffler 3 and the valve body 1 at multiple positions, the muffler 3 can be more stably fixed to the valve body 1, and the noise caused by the shaking of the muffler 3 relative to the valve body 1 can be reduced, which is conducive to improving the NVH (Noise, Vibration, Harshness) performance of the vehicle.
[0054] According to the vehicle of the utility model embodiment, the pressure relief valve 100 of the vehicle is as described above. By arranging the first cavity 31 and the second cavity 32 in the muffler 3, which are in communication with the air outlet channel and the interior of the vehicle, the pressure relief area of the pressure relief valve 100 can be increased, the pressure relief capacity of the pressure relief valve 100 can be enhanced, the risk of noise caused by the outflow of excess pressure from the windshield washer or the oil filler cap of the vehicle can be reduced, the disturbance sound at the pressure relief valve 100 can be reduced, the NVH (Noise, Vibration, Harshness) performance of the vehicle can be improved, and the user's driving experience can be improved.
[0055] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0056] In the description of the utility model, "first feature", "second feature" can include one or more features.
[0057] In the description of the utility model, "multiple" means two or more.
[0058] In the description of the utility model, the "above" or "below" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.
[0059] In the description of the utility model, "above", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.
[0060] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the utility model, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0061] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A vehicle pressure relief valve (100), characterized in that: include: A valve body (1), the valve body (1) having an air outlet channel, the air outlet channel being used to guide the gas inside the vehicle to the outside of the vehicle; A valve plate (2), the valve plate (2) being rotatably arranged on the valve body (1), and the valve plate (2) selectively opening or blocking the air outlet channel; A muffler (3), the muffler (3) being arranged on the valve body (1) and located on the upstream side of the air outlet channel; the muffler (3) defining a first cavity (31) and a second cavity (32), the first cavity (31) being in communication with the air outlet channel, the interior of the vehicle, and the second cavity (32), and the second cavity (32) being in communication with the interior of the vehicle and the air outlet channel.
2. The vehicle pressure relief valve (100) according to claim 1, characterized in that: The muffler (3) comprises: a first muffler shell (33) and a second muffler shell (34); the first muffler shell (33) is connected to the second muffler shell (34); the first muffler shell (33) defines a first cavity (31); the second muffler shell (34) defines a second cavity (32); and the second muffler shell (34) has a first connecting hole (35) connecting the second cavity (32) with the interior of the vehicle.
3. The vehicle pressure relief valve (100) according to claim 2, characterized in that: There are multiple first communicating holes (35).
4. The vehicle pressure relief valve (100) according to claim 2, characterized in that: Also includes: A silencer is provided in the second cavity (32).
5. The vehicle pressure relief valve (100) according to claim 4, characterized in that: The muffler has a pressure relief hole corresponding to the first communicating hole (35).
6. The vehicle pressure relief valve (100) according to claim 2, characterized in that: The second muffler shell (34) includes a top wall (341) and a side wall (342), the side wall (342) is connected to the top wall (341), the first muffler shell (33) is connected to the side wall (342), the top wall (341) has the first connecting hole (35), and the side wall (342) has a second connecting hole (39) connecting the second cavity (32) and the first cavity (31).
7. The vehicle pressure relief valve (100) according to claim 2, characterized in that: There are multiple valve plates (2) and multiple air outlet channels, and the multiple valve plates (2) and the multiple air outlet channels correspond to each other one by one. At least one valve plate (2) corresponds to the first cavity (31), and at least one valve plate (2) corresponds to the second cavity (32).
8. The vehicle pressure relief valve (100) according to any one of claims 1 to 7, characterized in that: The muffler (3) is detachably connected to the valve body (1).
9. The vehicle pressure relief valve (100) according to claim 8, characterized in that: The muffler (3) has a first clamping portion (36), the valve body (1) has a second clamping portion (11), and the first clamping portion (36) is clamped and matched with the second clamping portion (11).
10. A vehicle, characterized in that: A pressure relief valve (100) for a vehicle comprising the pressure relief valve (100) according to any one of claims 1 to 9.