Pressure release valve device of electric vehicle and vehicle

Abstract

The invention discloses a pressure relief valve device of an electric vehicle and the vehicle. The pressure relief valve device of the electric vehicle comprises a base, a pressure relief valve and a pressure relief valve, according to the pressure relief assembly, the horizontal guide vane is arranged in the pressure relief opening and extends in the first direction, the pressure relief valve plates are arranged on the pressure relief valve body and selectively open and close the sub pressure relief openings, the number of the pressure relief valve plates is multiple, and the multiple pressure relief valve plates correspond to the multiple sub pressure relief openings in a one-to-one mode. And a plurality of first resonant cavities with different volumes are formed in the horizontal guide vane. Therefore, the horizontal guide vane is arranged in the pressure relief opening, and the first resonance cavities with different volumes are formed in the horizontal guide vane, so that noise with different frequencies is subjected to resonance noise reduction, pressure relief ventilation of the pressure relief valve device is not affected, and the noise reduction effect of the pressure relief valve device can be improved; the pressure release valve device is compact in structure, the original size and the overall shape cannot be increased, and the pressure release valve device can be conveniently arranged on a vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a pressure relief valve device of an electric vehicle and a vehicle. BACKGROUND

[0002] The pressure relief valve of an automobile is an important component of the vehicle body ventilation system, and its main function is to balance the air pressure between the passenger cabin and the external environment during vehicle operation, thereby avoiding problems such as glass fogging and frosting caused by air pressure differences, and ensuring driving safety and comfort. However, as a direct channel between the passenger cabin and the outside world, the opening structure of the pressure relief valve also becomes a weak link in the acoustic sealing of the whole vehicle, and is one of the paths through which external noise enters the vehicle.

[0003] With the rapid development of the new energy automobile industry, the "masking effect" of engine noise on other noise sources in traditional fuel vehicles gradually disappears, and the requirements for sound absorption and sound insulation performance of the whole vehicle are significantly improved. The acoustic performance of the pressure relief valve is thus more concerned. At present, due to layout restrictions, most vehicles generally install the pressure relief valve in the tail area of the side wall, which is not only close to the rear wheel, the exhaust system, but also close to the air spring gas tank and other high-frequency noise sources. In the absence of active sound insulation means, noise is easily transmitted into the passenger cabin through the pressure relief valve path, causing significant impact on the ear area.

[0004] Current common noise reduction measures include setting sound-absorbing cotton, silencers or using local wrapping in the pressure relief path. However, sound-absorbing cotton has limited sound absorption effect on medium and high frequency noise, silencers require a large volume and are not suitable for space-constrained situations, and local wrapping will affect ventilation.

[0005] Therefore, how to effectively suppress the noise generated during pressure relief without weakening the pressure relief function is a key problem in the current vehicle body acoustic design. SUMMARY

[0006] The present application aims to at least solve one of the problems in the prior art. To this end, the present application provides a pressure relief valve device of an electric vehicle, which can improve the suppression of noise generated during pressure relief without affecting pressure relief, and the pressure relief valve device of the electric vehicle is simple and convenient to set in the vehicle.

[0007] The present application further provides a vehicle.

[0008] The pressure relief valve device of the electric vehicle according to the embodiment of the present application comprises: a base adapted to be connected to a vehicle; The pressure relief assembly comprises a pressure relief valve body, pressure relief valve pieces and horizontal guide vanes. The pressure relief valve body is arranged on the base and has a pressure relief port. The horizontal guide vanes are arranged in the pressure relief port and extend in a first direction to divide the pressure relief port into multiple sub-pressure relief ports. The pressure relief valve pieces are arranged on the pressure relief valve body and selectively open and close the sub-pressure relief ports. The pressure relief valve pieces are in one-to-one correspondence with the sub-pressure relief ports. First resonance cavities of different volumes are arranged in the horizontal guide vanes. The cross-sectional area of the first resonance cavities in a second direction gradually increases in the direction of the intake air flow. First intake slits corresponding to the first resonance cavities are arranged on the intake side of the horizontal guide vanes.

[0009] Therefore, by arranging the horizontal guide vanes in the pressure relief port and arranging the first resonance cavities of different volumes in the horizontal guide vanes, the noise of different frequencies is resonated to reduce noise. This not only does not affect the pressure relief ventilation of the pressure relief valve device, but also improves the noise reduction effect of the pressure relief valve device. In addition, the structure of the pressure relief valve device is compact, does not increase the original volume and overall shape, and is convenient for arrangement on the vehicle.

[0010] According to some embodiments of the present application, the horizontal guide vanes are arranged in the second direction.

[0011] According to some embodiments of the present application, the first partition plates are arranged in each of the horizontal guide vanes. The first partition plates divide the horizontal guide vanes into multiple first resonance cavities. The projections of the first partition plates in the second direction are spaced apart from each other.

[0012] According to some embodiments of the present application, the second resonance cavities of different volumes are arranged in at least one side wall of the pressure relief valve body in the second direction. Second intake slits corresponding to the second resonance cavities are arranged on the intake side of at least one side wall of the pressure relief valve body in the second direction.

[0013] According to some embodiments of the present application, the second partition plates are arranged in the second resonance cavities. The second partition plates divide at least one side wall of the pressure relief valve body in the second direction into multiple second resonance cavities. The projections of the second partition plates in the second direction are spaced apart from the projections of the first partition plates in the second direction in the horizontal guide vanes, so that the volumes of the multiple first resonance cavities and the multiple second resonance cavities are different.

[0014] According to some embodiments of the present application, the resonance frequencies of the first resonance cavities and the second resonance cavities are set to be , satisfies the relationship: ; wherein, is the speed of sound in air, is the cross-sectional area of the first intake slit or the second intake slit in the second direction, is a correction factor, is the thickness of the first intake slit or the second intake slit in the direction of intake flow, is the volume of the first resonant cavity or the second resonant cavity.

[0015] According to some embodiments of the present application, each of the sub-pressure relief ports is provided with vertical flow guide vanes, the vertical flow guide vanes extend in the second direction and are a plurality of, the plurality of vertical flow guide vanes are arranged in the first direction.

[0016] According to some embodiments of the present application, the vertical flow guide vanes include a first vane segment and a second vane segment, the first vane segment extends in the second direction, and the second vane segment extends in the direction of intake flow and is connected to one end of the first vane segment in the second direction.

[0017] According to some embodiments of the present application, the base extends around the outer circumferential edge of the pressure relief valve body and avoids the pressure relief port.

[0018] A vehicle according to an embodiment of the present application comprises the pressure relief valve device of the electric vehicle described above.

[0019] Additional aspects and advantages of the present application will be made apparent from the following description of embodiments, which will be given by way of example only, and with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein: Figure 1 is a schematic view of a pressure relief valve device of an electric vehicle according to an embodiment of the present application; Figure 2 is a schematic view of a pressure relief assembly according to an embodiment of the present application; Figure 3 is a schematic view of a pressure relief assembly according to an embodiment of the present application; Figure 4 is a sectional view of a pressure relief assembly in a first direction according to an embodiment of the present application; Figure 5 is a sectional view of a pressure relief assembly in a second direction according to an embodiment of the present application; Figure 6is a graph of sound transmission loss and resonance frequency according to an embodiment of the present application.

[0021] Reference signs: 100, pressure relief valve device; 10, base; 20, pressure relief assembly; 21, pressure relief valve body; 211, pressure relief port; 2111, sub-pressure relief port; 212, second resonance cavity; 213, second air inlet slit; 214, second partition plate; 22, pressure relief valve piece; 23, horizontal guide vane; 231, first resonance cavity; 232, first air inlet slit; 233, first partition plate; 24, vertical guide vane; 241, first vane segment; 242, second vane segment; 25, first local resonance unit; 26, second local resonance unit; 27, third local resonance unit; 28, fourth local resonance unit; 29, fifth local resonance unit; 30, sixth local resonance unit. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the accompanying drawings, which are described by way of example.

[0023] The following detailed description of embodiments of the present application is described below with reference to the accompanying drawings. Figures 1-5 The pressure relief valve device 100 of an electric vehicle according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0024] In combination Figures 1-5 As shown, the pressure relief valve device 100 of an electric vehicle according to an embodiment of the present application can mainly include a base 10 and a pressure relief assembly 20, wherein the base 10 is adapted to be connected to the vehicle, the pressure relief assembly 20 includes a pressure relief valve body 21, pressure relief valve pieces 22 and a horizontal guide vane 23, the pressure relief valve body 21 is arranged on the base 10 and is provided with a pressure relief port 211, the horizontal guide vane 23 is arranged in the pressure relief port 211 and extends in a first direction to divide the pressure relief port 211 into a plurality of sub-pressure relief ports 2111, the pressure relief valve pieces 22 are arranged on the pressure relief valve body 21 and selectively open and close the sub-pressure relief ports 2111, the pressure relief valve pieces 22 are a plurality of, and the plurality of pressure relief valve pieces 22 correspond one-to-one to the plurality of sub-pressure relief ports 2111; the horizontal guide vane 23 is internally provided with a plurality of first resonance cavities 231 of different volumes, in the direction of the air inlet flow, the cross-sectional area of the second direction of the first resonance cavities 231 gradually increases, and the horizontal guide vane 23 is provided with a first air inlet slit 232 corresponding to the plurality of first resonance cavities 231 on the air inlet side of the plurality of first resonance cavities 231, which corresponds one-to-one to the plurality of first resonance cavities 231, wherein the first direction and the second direction are perpendicular to each other.

[0025] Specifically, by setting the pressure relief valve body 21 on the base 10, setting the base 10 in the ventilation system of the vehicle, and connecting the base 10 with the vehicle, the pressure relief port 211 is opened on the pressure relief valve body 21, the horizontal flow guide vane 23 is arranged in the pressure relief port 211 and extends in the first direction to divide the pressure relief port 211 into a plurality of sub-pressure relief ports 2111, and the pressure relief valve piece 22 is arranged on the pressure relief valve body 21 and selectively opens and closes the sub-pressure relief port 2111. The pressure relief valve piece 22 is a plurality of pressure relief valve pieces 22 corresponding to the plurality of sub-pressure relief ports 2111, and the pressure relief valve piece 22 can selectively open and close the sub-pressure relief port 2111, thereby achieving pressure balance between the passenger compartment and the external environment during vehicle operation.

[0026] Further, when the ventilation and pressure relief between the passenger compartment and the external environment, the noise generated by the airflow and the external noise will enter the pressure relief port 211 and enter the passenger compartment through the pressure relief port 211, affecting the driving experience of the driver in the passenger compartment. Therefore, by arranging the horizontal flow guide vane 23 in the pressure relief port 211, a plurality of first resonance cavities 231 of different volumes are arranged inside the horizontal flow guide vane 23, and the noise will enter the plurality of first resonance cavities 231 through the first air inlet slot 232 corresponding to the plurality of first resonance cavities 231. The plurality of first resonance cavities 231 of different volumes can suppress noise of different frequencies by resonance. By such arrangement, not only the pressure relief ventilation of the pressure relief valve device 100 is not affected, ensuring the pressure balance between the passenger compartment and the external environment during vehicle operation, but also the plurality of first resonance cavities 231 can suppress noise of different frequencies by reasonably setting different volumes, and the noise suppression effect can be improved.

[0027] Further, when the ventilation and pressure relief between the passenger compartment and the external environment, the horizontal flow guide vane 23 can guide the airflow, not only without hindering the ventilation and pressure relief of the pressure relief valve device 100, but also improving the smoothness of the airflow, thereby improving the efficiency of the ventilation and pressure relief between the passenger compartment and the external environment.

[0028] In addition, the horizontal flow guide vane 23 of the embodiment of the present application is arranged in the pressure relief port 211, which does not increase the volume of the pressure relief valve body 21, and does not change the overall shape of the pressure relief valve piece 22, so that the pressure relief valve device 100 can be conveniently arranged on the vehicle without increasing the difficulty of arrangement.

[0029] In some embodiments of the present application, when the vehicle is in normal operation and the passenger cabin is in internal circulation or external circulation, the pressure relief valve plate 22 will quickly open the sub-pressure relief port 2111 for air pressure adjustment, and this process is accompanied by high-speed airflow passing through the pressure relief valve body 21, which will generate broadband aerodynamic noise concentrated in the frequency band of 800-1000 Hz. This frequency band is in the most sensitive interval of human ear hearing, with high sound pressure level, abrupt change, subjective perception of harshness, and becomes one of the key factors affecting the quietness of the vehicle. By reasonably setting the volume of the first resonance cavity 231, the broadband aerodynamic noise in the range of 800-1000 Hz can be effectively suppressed without affecting the air pressure adjustment and ventilation efficiency.

[0030] As shown in Figure 2 The horizontal guide vanes 23 are arranged in the second direction. Specifically, by arranging multiple horizontal guide vanes 23 and spacing them in the second direction, the number of first resonance cavities 231 can be increased, thereby improving the noise suppression effect.

[0031] As shown in Figure 3 And Figure 4 Each horizontal guide vane 23 is provided with a first partition plate 233, which divides the horizontal guide vane 23 into multiple first resonance cavities 231, and the projections of the first partition plates 233 in the second direction are spaced apart.

[0032] Specifically, by arranging a first partition plate 233 inside each horizontal guide vane 23 and spacing the first partition plates 233 in the second direction, it can be seen that the first partition plates 233 inside each horizontal guide vane 23 are located at different positions inside the horizontal guide vane 23. This can make the volumes of the first resonance cavities 231 inside different horizontal guide vanes 23 different, i.e., the placement position of the first partition plate 233 can change the length of the first resonance cavities 231 in the first direction inside different horizontal guide vanes 23, thereby changing the volumes of the first resonance cavities 231 inside different horizontal guide vanes 23, so that the first resonance cavities 231 inside different horizontal guide vanes 23 can suppress different frequencies of noise. This can make the multiple first resonance cavities 231 have a good suppression effect on various frequencies of noise, thereby expanding the frequency range of the multiple first resonance cavities 231 for noise suppression, and further improving the noise suppression effect.

[0033] As shown in Figure 3 And Figure 4As shown, the second direction of the pressure relief valve body 21 is internally provided with a plurality of second resonance cavities 212 with different volumes, and the at least one side wall of the second direction of the pressure relief valve body 21 is provided with a second air inlet slit corresponding to the plurality of second resonance cavities 212.

[0034] Specifically, by internally providing a plurality of second resonance cavities 212 with different volumes in the at least one side wall of the second direction of the pressure relief valve body 21, it should be noted that the at least one side wall of the second direction of the pressure relief valve body 21 is parallel to the horizontal guide vane 23, and the second resonance cavity 212 is directly internally provided in the at least one side wall of the second direction of the pressure relief valve body 21, so that the original structure of the pressure relief valve body 21 can be fully utilized, and the number of resonance cavities can be increased without increasing the number of horizontal guide vanes 23, thereby further improving the noise reduction effect of the pressure relief valve device 100.

[0035] In some embodiments of the present application, the first resonance cavity 231 and the second resonance cavity 212 are isosceles trapezoidal, and the cross-sectional area of the first resonance cavity 231 and the second resonance cavity 212 in the second direction gradually increases, so that the volume of the first resonance cavity 231 and the second resonance cavity 212 gradually increases, when the sound wave enters the first resonance cavity 231 from the first air inlet slit 232, or enters the second resonance cavity 212 from the second air inlet slit 213, due to the gradually increasing cross-sectional area of the first resonance cavity 231 and the second resonance cavity 212 in the second direction, the acoustic impedance inside the first resonance cavity 231 and the second resonance cavity 212 gradually changes, due to impedance mismatch, a part of the sound wave will be reflected back to the source direction, and only part of it will be transmitted, compared with the cavity with "sudden expansion" of volume, the first resonance cavity 231 and the second resonance cavity 212 with gradually increasing volume can make the impedance change more gently, and realize wider frequency band reflection and more efficient low frequency noise suppression.

[0036] In combination Figure 3 As shown, the second resonance cavity 212 is provided with a second partition plate 214, the second partition plate 214 separates the at least one side wall of the second direction of the pressure relief valve body 21 into a plurality of second resonance cavities 212, and the projection of the second partition plate 214 in the second direction is spaced from the projection of the first partition plate 233 inside the plurality of horizontal guide vanes 23 in the second direction, so that the volumes of the plurality of first resonance cavities 231 and the plurality of second resonance cavities 212 are different, so that the frequency range of the noise suppression of the pressure relief valve body 21 can be further improved under the premise of increasing the number of resonance cavities, thereby further improving the noise reduction effect of the pressure relief valve body 21.

[0037] In some embodiments of the present application, the two horizontal guide vanes 23 are each internally provided with two first resonance cavities 231, the lower side wall of the second direction of the pressure relief valve body 21 is internally provided with two second resonance cavities 212, the two first resonance cavities 231 in the horizontal guide vane 23 above the second direction among the two horizontal guide vanes 23 are respectively set as the first local resonance unit 25 and the second local resonance unit 26, the two first resonance cavities 231 in the horizontal guide vane 23 below the second direction among the two horizontal guide vanes 23 are respectively set as the third local resonance unit 27 and the fourth local resonance unit 28, the lower side wall of the second direction of the pressure relief valve body 21 is internally provided with two second resonance cavities 231 which are respectively set as the fifth local resonance unit 29 and the sixth local resonance unit 30, the resonance frequency of the first local resonance unit 25 is near 825 Hz, the resonance frequency of the third local resonance unit 27 is 25-30 Hz higher than that of the first local resonance unit 25, the resonance frequency of the fifth local resonance unit 29 is 25-30 Hz higher than that of the third local resonance unit 27, the resonance frequency of the sixth local resonance unit 30 is 25-30 Hz higher than that of the fifth local resonance unit 29, the resonance frequency of the fourth local resonance unit 28 is 25-30 Hz higher than that of the sixth local resonance unit 30, and the resonance frequency of the second local resonance unit 26 is 25-30 Hz higher than that of the fourth local resonance unit 28.

[0038] The resonance frequencies of the first resonance cavities 231 and the second resonance cavities 212 are respectively set as , satisfy the relationship: ; wherein, is the air sound speed, is the cross-sectional area of the first air inlet slit 232 and the second air inlet slit 213 in the second direction, is a correction coefficient, is the thickness of the first air inlet slit 232 and the second air inlet slit 213 in the air inlet direction, is the volume of the first resonance cavity 231 and the second resonance cavity 212.

[0039] It can be known from the calculation formula that the resonance frequency The resonant frequency is offset by controlling the volume of the first resonant cavity 231 and the second resonant cavity 212 in the embodiment of the present application. The greater the volume of the resonant cavity, the smaller the corresponding resonant frequency, and the smaller the volume of the resonant cavity, the greater the corresponding resonant frequency. Therefore, the first local resonant unit 25 and the sixth local resonant unit 30 are in the same horizontal guide vane 23, the second local resonant unit 26 and the fifth local resonant unit 29 are in the same horizontal guide vane 23, and the third local resonant unit 27 and the fourth local resonant unit 28 are in the same horizontal guide vane 23. This can make the resonant cavities of each layer more uniform in noise suppression, thereby further improving the noise reduction effect of the pressure relief valve device 100.

[0040] To verify the noise reduction capability of the pressure relief valve device 100, the sound transmission loss calculation of the pressure relief valve device 100 in the embodiment is carried out by numerical simulation, and the calculation result is shown in Figure 6 The pressure relief valve device 100 has significant sound wave attenuation characteristics within 800-1000Hz, especially has obvious transmission loss peak at six resonant frequencies.

[0041] As shown in Figures 2-5 Each sub-pressure relief port 2111 is provided with a vertical guide vane 24 extending in the second direction, and the plurality of vertical guide vanes 24 are arranged in the first direction.

[0042] Specifically, by arranging a plurality of vertical guide vanes 24 extending in the second direction in the sub-pressure relief port 2111, and arranging the plurality of vertical guide vanes 24 in the first direction, the plurality of vertical guide vanes 24 extending in the second direction can guide the airflow through the sub-pressure relief port 2111, thereby further improving the smoothness of the airflow through the pressure relief valve device 100.

[0043] As shown in Figure 1 The vertical guide vane 24 includes a first vane segment 241 extending in the second direction and a second vane segment 242 extending in the air inlet direction and connected to one end of the first vane segment 241 in the second direction. In this way, the guiding effect of the vertical guide vane 24 on the airflow through the pressure relief valve device 100 can be more comprehensive, and the vertical guide vane 24 and the horizontal guide vane 23 can cooperate with each other to make the airflow through the pressure relief valve device 100 more smooth and stable.

[0044] As shown in Figures 1-5 The base 10 extends around the outer edge of the pressure relief valve body 21 and avoids the pressure relief port 211.

[0045] Specifically, by extending the base 10 to the circumferential outer side edge of the pressure relief valve body 21 and causing the base 10 to avoid the pressure relief port 211, after connecting the base 10 with the vehicle, so that the pressure relief valve device 100 is arranged on the vehicle, the base 10 not only makes the arrangement of the pressure relief valve device 100 on the vehicle more stable and reliable, but also does not block the pressure relief of the pressure relief port 211, which can ensure the pressure relief stability of the pressure relief valve device 100.

[0046] The vehicle according to the embodiment of the present application can mainly include the above-mentioned pressure relief valve device 100 of the electric vehicle, and the arrangement of the above-mentioned pressure relief valve device 100 on the vehicle can not only ensure the balance of the pressure between the passenger compartment and the outside of the vehicle, but also reduce the noise transmitted to the passenger compartment of the vehicle, which can further improve the driving experience of the driver and the passenger.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "circumferential", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0048] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0049] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A pressure relief valve device for an electric vehicle, characterized in that: include: A base (10), the base (10) being adapted to be connected to a vehicle; A pressure relief assembly (20), the pressure relief assembly (20) comprising a pressure relief valve body (21), a pressure relief valve plate (22) and a horizontal guide vane (23), the pressure relief valve body (21) being arranged on the base (10) and having a pressure relief port (211), the horizontal guide vane (23) being arranged in the pressure relief port (211) and extending in a first direction to separate the pressure relief port (211) into a plurality of sub-pressure relief ports (2111), the pressure relief valve plate (22) being arranged on the pressure relief valve body (21) and selectively opening and closing the sub-pressure relief ports (2111), the pressure relief valve plate (22) being multiple, and the plurality of pressure relief valve plates (22) corresponding to the plurality of sub-pressure relief ports (2111) on a one-to-one basis; A plurality of first resonance cavities (231) of different volumes are provided inside the horizontal guide vane (23), and in the direction of the inlet airflow, the cross-sectional area of ​​the first resonance cavity (231) in the second direction gradually increases, and a first air intake slit (232) is provided on the air intake side of the horizontal guide vane (23) corresponding to the plurality of first resonance cavities (231), which is in one-to-one communication with the plurality of first resonance cavities (231), wherein the first direction and the second direction are perpendicular to each other.

2. The pressure relief valve device for an electric vehicle according to claim 1, characterized in that: There are a plurality of horizontal guide blades (23), and the plurality of horizontal guide blades (23) are arranged at intervals in the second direction.

3. The pressure relief valve device for an electric vehicle according to claim 2, characterized in that: A first baffle (233) is provided inside each of the horizontal guide blades (23), and the first baffle (233) divides the interior of the horizontal guide blade (23) into a plurality of first resonance cavities (231). Projections of the first baffles (233) in the plurality of horizontal guide blades (23) in the second direction are spaced apart from each other.

4. The pressure relief valve device for an electric vehicle according to claim 3, characterized in that: A plurality of second resonance cavities (212) of different volumes are provided inside at least one side wall of the pressure relief valve body (21) in the second direction, and a second air intake slit (213) is provided on the air intake side of the plurality of second resonance cavities (212) corresponding to the plurality of second resonance cavities (212) in the second direction of the pressure relief valve body (21). The second air intake slit (213) is in one-to-one communication with the plurality of second resonance cavities (212).

5. The pressure relief valve device for an electric vehicle according to claim 4, characterized in that: A second partition (214) is provided in the second resonance cavity (212), and the second partition divides the interior of at least one side wall of the pressure relief valve body (21) in the second direction into a plurality of second resonance cavities (212). The projection of the second partition (214) in the second direction and the projection of the first partition (233) in the second direction inside the plurality of horizontal guide vanes (23) are spaced apart from each other, so that the volumes of the plurality of first resonance cavities (231) and the plurality of second resonance cavities (212) are different.

6. The pressure relief valve device for an electric vehicle according to claim 4, characterized in that: The resonance frequencies of the first resonance cavity (231) and the second resonance cavity (212) are both set to , Satisfies the relationship: ； in, is the speed of sound in air, is the cross-sectional area of ​​the first air inlet narrow opening (232) or the second air inlet narrow opening (213) in the second direction, is the correction factor, is the thickness of the first air inlet slit (232) or the second air inlet slit (213) in the air inlet flow direction, is the volume of the first resonance cavity (231) or the second resonance cavity (212).

7. The pressure relief valve device for an electric vehicle according to claim 1, characterized in that: Each of the sub-pressure relief ports (2111) is provided with a vertical guide vane (24), the vertical guide vanes (24) extending in the second direction and being multiple, and the multiple vertical guide vanes (24) are arranged at intervals in the first direction.

8. The pressure relief valve device for an electric vehicle according to claim 7, characterized in that: The vertical guide blade (24) comprises a first blade segment (241) and a second blade segment (242), wherein the first blade segment (241) extends in a second direction, and the second blade segment (242) extends upward in the inlet air flow and is connected to one end of the first blade segment (241) in the second direction.

9. The pressure relief valve device for an electric vehicle according to claim 1, characterized in that: The base (10) is extended on the circumferential outer edge of the pressure relief valve body (21) and avoids the pressure relief port (211).

10. A vehicle comprising the pressure relief valve device (100) for an electric vehicle according to any one of claims 1 to 9.

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